Product name Confidentiality level WCDMA RNP For internal use only Product version V100R001 Total 92pages WCDMA RNO Handover Procedure Analysis Guidance For internal use only Prepared by URNP-SANA Date 2004-2-19 Reviewed by Date Reviewed by Date Granted by Date Huawei Technologies Co., Ltd. All rights reserved
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Product name Confidentiality level WCDMA RNP For internal use only
Product version V100R001 Total 92pages
WCDMA RNO Handover Procedure Analysis
Guidance
For internal use only
Prepared by URNP-SANA Date 2004-2-19 Reviewed by Date Reviewed by Date Granted by Date
Huawei Technologies Co., Ltd.
All rights reserved
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Revision record
Date Revision version change Description
Author 2003-10-30 Initial transmittal Zang Liang
2003-11-18 Initial transmittal revised Zang Liang
WCDMA RNO Handover Procedure Analysis For internal use only
2.2 Hard Handover .............................................................................................................. 12 2.2.1 Inter-frequency Hard Handover................................................................................ 12 2.2.2 Intra-frequency Hard Handover................................................................................ 14 2.2.3 Inter-RAT Hard Handover ........................................................................................ 15
3 Signaling Procedures and Message Analyses of Handover Procedures............................. 16 3.1 Measurement Control and Measurement Report........................................................... 17
3.2 Soft Handover Procedure Analysis ................................................................................ 27 3.2.1 General Description of the Active Set Update Procedure ........................................ 27 3.2.2 Analysis of Soft Handover Related IEs .................................................................... 28 3.2.3 Active Set Update Procedure................................................................................... 34 3.2.4 Soft Handover Signaling Procedures Analysis......................................................... 39
3.3 Hard Handover Procedure Analysis............................................................................... 46 3.3.1 General Description of the Hard Handover Procedure............................................. 46 3.3.2 Analysis of Hard Handover Related IEs................................................................... 50 3.3.3 Hard Handover Signaling Procedure ....................................................................... 75
3.4 Inter-RAT Handover Procedure Analysis....................................................................... 79 3.4.1 General Description of the inter-RAT handover procedure ...................................... 79 3.4.2 Analysis of Inter-RAT Hard Handover Related IEs .................................................. 81 3.4.3 Inter-RAT Hard Handover Signaling Procedure....................................................... 87
4 Performance Analysis of Handover Procedure.................................................................... 90 4.1 Performance Indicators and Analysis of Soft Handover................................................. 90 4.2 Hard Handover Performance Indicators and Analysis ................................................... 91
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List of Tables
Table1 IEs in a measurement control message................................................................... 20 Table2 IEs in a measurement report message .................................................................... 25 Table3 Measured results IE ................................................................................................. 25 Table4 Event results IE........................................................................................................ 26 Table5 IEs in an active set update message ....................................................................... 28 Table6 Table 6 Radio link addition information IE................................................................ 31 Table7 IEs in an active set update complete message........................................................ 31 Table8 IEs in an active set update failure message............................................................. 33 Table9 Active set update failure causes .............................................................................. 33 Table10 IEs in a RADIO BEARER ESTABLISHMENT message........................................... 50 Table11 IEs in a RADIO BEARER RECONFIGURATION message ..................................... 56 Table12 IEs in a RADIO BEARER RELEASE message........................................................ 61 Table13 IEs in a TRANSPORT CHANNEL RECONFIGURATION message ........................ 67 Table14 IEs in a PHYSICAL CHANNEL RECONFIGURATION message............................. 72 Table15 IEs in a HANDOVER FROM UTRAN COMMAND message ................................... 81 Table16 IEs in a HANDOVER TO UTRAN COMMAND message ......................................... 82
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List of Figures
Figure 1 Softer handover (Intra-NodeB, Inter-cell and intra-frequency handover) ................... 9 Figure 2 Soft handover (Intra-NodeB, inter-cell and intra-frequency handover)..................... 10 Figure 3 Soft handover (intra-RNC, inter-NodeB and intra-frequency handover)................... 11 Figure 4 Soft handover (inter-RNS and intra-frequency handover)........................................ 12 Figure 5 Hard handover (intra-NodeB, inter-cell and inter-frequency handover).................... 13 Figure 6 Hard handover (intra-RNS, inter-NodeB and inter-frequency handover) ................. 13 Figure 7 Inter-frequency hard handover................................................................................. 14 Figure 8 Intra-frequency hard handover (inter-RNS without lur) ............................................ 15 Figure 9 Intra-frequency hard handover (of the PS BE service beyond the rate threshold) ... 15 Figure 10 Inter-RAT hard handover ................................................................................ 16 Figure 11 Measurement control and measurement report.............................................. 19 Figure 12 Measurement control procedure, normal case ............................................... 19 Figure 13 Measurement control procedure, failure case................................................. 20 Figure 14 Measurement report, normal case.................................................................. 25 Figure 15 Active Set Update procedure, successful case............................................... 27 Figure 16 Active Set Update procedure, failure case...................................................... 28 Figure 17 Active set update procedure (successful and failure cases) ........................... 34 Figure 18 Radio link addition signaling procedure .......................................................... 40 Figure 19 Radio link deletion signaling procedure .......................................................... 42 Figure 20 Combined radio link addition and deletion signaling procedure...................... 44 Figure 21 Radio bearer establishment, normal case ...................................................... 47 Figure 22 Radio bearer establishment, failure case........................................................ 47 Figure 23 Radio bearer reconfiguration, normal case..................................................... 48 Figure 24 Radio bearer reconfiguration, failure case ...................................................... 48 Figure 25 Radio bearer release, normal case................................................................. 48 Figure 26 Radio bearer release, failure case.................................................................. 48 Figure 27 Transport channel reconfiguration, normal case............................................. 49 Figure 28 Transport channel reconfiguration, failure case.............................................. 49 Figure 29 Physical channel reconfiguration, normal case............................................... 49 Figure 30 Physical channel reconfiguration, failure case................................................ 50 Figure 31 Hard handover signaling procedure (with Iur interface and the UE in CELL_DCH state) .................................................................................................................... 76
Figure 32 Cross-CN hard handover signaling procedure................................................ 78 Figure 33 Inter-RAT handover from UTRAN, successful case ....................................... 79 Figure 34 Inter-RAT handover from UTRAN, failure case .............................................. 80 Figure 35 Inter-RAT handover to UTRAN....................................................................... 80 Figure 36 UTRAN ⇒ GSM/BSS inter-RAT hard handover signaling procedure ............. 87 Figure 37 GSM/BSS ⇒ UTRAN inter-RAT hard handover signaling procedure ............. 89
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WCDMA RNO Handover Procedure Analysis
Key words:Handover procedure, soft handover, hard handover, inter-RAT handover
Abstract:This document introduces the classification of WCDMA handovers, analyzes in
details the signaling procedures of handover measurement, soft handover, hard handover and inter-RAT hard handover procedures, and describes the handover performance indicators.
List of abbreviations:
Abbreviations Full spelling
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1 Handover Concept Handovers are an inevitable issue where a mobile communication system is concerned, and
play a very important role in a WCDMA system. It is one of the most important methods to
implement a seamless coverage and improve the communication quality.
In short, a handover is to transfer a UE connection from one radio link to another to
accommodate the change of radio link caused by UE’s crossing over cells, load adjustment of
network or other reasons.
2 Classification of Handovers Handovers are of two types, i.e. soft handover and hard handover. Roughly speaking, the
difference between them is that in a soft handover a new connection is established before the
existing one is disconnected, while in a hard handover it is the vice versa.
Soft handovers can be further categorized into softer handover and soft handover.
Hard handovers can be further categorized into intra-frequency hard handover,
inter-frequency hard handover and inter-system handover.
2.1 Soft Handover
Definition: A soft handover means that there will always remain at least one radio link
between the UE and UTRAN when radio links are added or removed. The merits of soft
handovers are as follows:
Without interrupting communications, soft handovers can improve the handover success
rate.
Soft handovers implement selection combination and achieve diversity gain and therefore
can improve the coverage and radio link performance.
Featured with high handover performance and low call-drop possibility when failed, soft
handovers can improve the call quality of UEs on cell edges.
However, a soft handover can occur only when the target handover cell and source
handover cell operate at the same frequency, and the UE in the soft handover state must keep
communicating with the two (or more) cells simultaneously, thus taking up more radio
resources in the downlink.
A soft handover is an intra-frequency handover of which the target and source cells must
meet either of the following two conditions:
1) Belong to the same RNC;
2) Belong to different RNCs with a lur interface between them.
Soft handovers can be categorized into softer handover and soft handover. The difference
between them is that in a softer handover radio links are combined within the NodeB, while in a
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soft handover radio links are combined within the RNC. They are defined in details in subsequent
sections respectively.
2.1.2 Softer handover
A softer handover happens between cells of the same frequency and same base station
(NodeB). Radio links are combined within a NodeB. As a special kind of soft handover, softer
hand over implements the uplink RAKE combination (with the downlink being already RAKE
combination) with more combination gain and better link performance than soft handover, while
using no extra lub/lur interface resources.
A softer handover will cause the following activities:
Altering the serving cell, with the target and source cells belonging to the same base station;
Changing the allocation of physical channels, e.g. parameters such as channelization code
and scrambling code;
Combining radio links within the NodeB.
The procedures of a softer handover are illustrated in Figure 1 below, with the radio links
combined (RAKE combination) within the NodeB.
Figure 1 (i) shows that there is a radio link between the UE and the source cell before the
handover occurs.
Figure 1 (ii) shows that the softer handover occurs, and the UE is in macro diversity handover
state with the two links combined within NodeB.
Figure 1 (iii) shows that the softer handover completes and the radio link between the UE and
the source cell is removed.
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SRNSUTRAN
SRNSUTRAN
SRNSUTRAN
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(i)CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(ii)
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(iii)
Intra Node B (Inter Cell)
Figure 1 Softer handover (Intra-NodeB, Inter-cell and intra-frequency handover)
2.1.3 Soft Handover
1. A soft handover happens between different cells of the same frequency and same NodeB.
Radio links are combined within the RNC rather than within NodeB (softer handover) because of
the NodeB implementation or signaling reasons. Its network structure is the same as that of a
softer handover, but with a different implementation mechanism.
An intra-NodeB, inter-cell and intra-frequency soft handover will cause the following
activities:
Altering the serving cell, with the target and source cells belonging to the same base
station;
Re-allocating physical and transport channels, e.g. parameters such as channelization
code and scrambling code;
Combining radio links within the RNC.
The procedures of an intra-NodeB soft handover are illustrated in Figure 2 below.
Figure 2 (i) shows that there is a radio link between the UE and the source cell before the
handover occurs.
Figure 2 (ii) shows that the soft handover occurs, and the UE is in macro diversity handover
state with the two links combined within the RNC.
Figure 2 (iii) shows that the soft handover completes and the radio link between the UE and
source cell is removed.
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SRNSUTRAN
SRNSUTRAN
SRNSUTRAN
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(i)CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(ii)
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(iii)
Intra Node B (Inter Cell)
Figure 2 Soft handover (Intra-NodeB, inter-cell and intra-frequency handover)
2. An intra-RNC and inter-NodeB soft handover will cause the following activities:
Altering the serving cell, with the target and source cells belonging to different base
stations in the same RNC;
Re-allocating physical and transport channels, e.g. parameters such as channelization
code and scrambling code;
Combining radio links within the RNC.
The procedures of an intra-RNC and inter-NodeB soft handover are illustrated in Figure 3
below.
Figure 3 (i) shows that there is a radio link between the UE and the source cell before the
handover occurs.
Figure 3 (ii) shows that the soft handover occurs, and the UE is in macro diversity handover
state with the two links combined within the RNC.
Figure 3 (iii) shows that the soft handover completes and the radio link between the UE and
source cell is removed.
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SRNSUTRAN
SRNSUTRAN
SRNSUTRAN
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(i)CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(ii)
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(iii)
Inter Node B (Intra RNS)
Figure 3 Soft handover (intra-RNC, inter-NodeB and intra-frequency handover)
3. An inter-RNC, inter-NodeB and intra-frequency soft handover will cause the following
activities:
Altering the serving cell, with the target and source cells belonging to different base
stations in different RNCs;
Changing the allocation of physical and transport channels, e.g. parameters such as
channelization code and scrambling code;
Combining radio links within SRNC.
The procedures of such a soft handover are illustrated in Figure 4 below, with the radio links
combined within the SRNC via a lur interface.
Figure 4 (i) shows that there is a radio link between the UE and the source cell before the
handover occurs.
Figure 4 (ii) shows that the soft handover occurs, and the UE is in macro diversity handover
state with the two links combined within the SRNC via the lur interface.
Figure 4 (iiI) shows that the soft handover completes and the radio link between the UE and
source cell is removed.
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SRNSUTRAN
DRNS
SRNSUTRAN
RNS SRNSUTRAN
DRNS
CN(UMTS)
SRNC RNC
NodeB NodeB NodeB NodeB
N/Ap1 N/Ap2
(i)CN(UMTS)
SRNC DRNC
NodeB NodeB NodeB NodeB
N/Ap1 N/Ap2
(ii)
CN(UMTS)
SRNC DRNC
NodeB NodeB NodeB NodeB
N/Ap1 N/Ap2
(iii)
Inter RNSSoft Handover
Figure 4 Soft handover (inter-RNS and intra-frequency handover)
2.2 Hard Handover
A hard handover happens when the UE releases the original radio link and then sets up a
new one. Because a hard handover will release the existing connection before setting up a new
one, it will cause temporary communication interruption.
Hard handovers can be further categorized into intra-frequency hard handover,
inter-frequency hard handover and inter-system handover.
2.2.1 Inter-frequency Hard Handover
1. An intra-NodeB, inter-cell and inter-frequency hard handover will cause the following
activities:
Altering the UE cell, with the target and source cells belonging to the same NodeB;
Changing the frequency;
Re-allocating physical and transport channels, e.g. parameters such as channelization
code and scrambling code.
Re-allocating transport channels, e.g. the number of transport channels and TFS.
The procedures of such a hard handover are illustrated in Figure 5 below. The radio link
between the UE and the cell as shown in Figure 5 (i) is released first before the radio link
between the UE and the cell as shown in Figure 5 (ii) is set up.
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SRNSUTRAN
SRNSUTRAN
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(i)CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(ii)
Intra Node B (Inter Cell)
Figure 5 Hard handover (intra-NodeB, inter-cell and inter-frequency handover)
2. An intra-RNC, inter-NodeB and inter-frequency hard handover can only take place
between adjacent NodeBs at different frequencies, and will cause the following activities:
Altering the serving cell, with the target and source cells belonging to different NodeBs
in the same RNC;
Changing the frequency;
Re-allocating physical and transport channels, e.g. parameters such as channelization
code and scrambling code;
Re-allocating transport channels, e.g. the number of transport channels and TFS.
The procedures of such a hard handover are illustrated in Figure 6 below. The radio link
between the UE and the cell as shown in Figure 6 (i) is released first before the radio link
between the UE and the cell as shown in Figure 6 (ii) is set up.
.
SRNSUTRAN
SRNSUTRAN
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(i)CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(ii)
Inter Node B (Intra RNS)
Figure 6 Hard handover (intra-RNS, inter-NodeB and inter-frequency handover)
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3. An inter-RNS and inter-frequency handover via the lur interface without changing the
SRNC will cause the following activities :
Altering the serving cell, with the target and source cells belonging to different RNCs;
Changing the frequency;
Re-allocating physical and transport channels, e.g. parameters such as channelization
code and scrambling code;
Re-allocating transport channels, e.g. the number of transport channels and TFS.
Figure 7 (i) shows the original radio link with the UE.
Figure 7 (ii) shows that the UE releases the original radio link, sets up another one in the target
cell and then sets up a new radio link via the lur interface with the original SRNC.
SRNSUTRAN
RNS SRNSUTRAN
DRNS
CN(UMTS)
SRNC RNC
NodeB NodeB NodeB NodeB
N/Ap1 N/Ap2
(i)CN(UMTS)
SRNC DRNC
NodeB NodeB NodeB NodeB
N/Ap1 N/Ap2
(ii)
Inter RNSHard Handover
Figure 7 Inter-frequency hard handover
2.2.2 Intra-frequency Hard Handover
1. The procedures of an intra-UTRAN, inter-RNS and intra-frequency handover without lur
interface are illustrated in Figure 8 below. Figure 8 (i) shows the original radio link with the UE.
Figure 8 (ii) shows that the UE releases the original radio link, sets up another one in the target
cell and then sets up a new radio link with the new SNRC.
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SRNSUTRAN
RNS RNSUTRAN
SRNS
CN(UMTS)
SRNC RNC
NodeB NodeB NodeB NodeB
N/Ap1 N/Ap2
(i)CN(UMTS)
RNC SRNC
NodeB NodeB NodeB NodeB
N/Ap1 N/Ap2
(ii)
Inter RNS (Intra UTRAN)No Iur
Figure 8 Intra-frequency hard handover (inter-RNS without lur)
2. An intra-frequency hard handover also occurs for the handover of a high-speed PS Best
Effort service which is beyond the rate threshold, because a soft handover would use too much
capacity in the downlink. Figure (i) shows the original radio link with the UE. Figure (ii) shows that
the UE releases the original radio link and then sets up another one between adjacent
intra-frequency cells in the same SRNC.
SRNSUTRAN
SRNSUTRAN
CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(i)CN(UMTS)
SRNC
NodeB NodeB
N/Ap1
(ii)
Inter Node B (Intra RNS)
Figure 9 Intra-frequency hard handover (of the PS BE service beyond the rate threshold)
2.2.3 Inter-RAT Hard Handover
Figure 10 illustrates inter-RAT handovers between WCDMA FDD system and GSM system.
Figure 10 (i) and (ii) illustrate an inter-RAT handover from the 3G WCDMA to the 2G GSM.
Figure 10 (iii) and (iv) illustrate an inter-RAT handover from the 2G GSM to the 3G WCDMA.
Figure 10 (v) and (vi) illustrate another kind of inter-RAT handover from the 2G GSM to the 3G
WCDMA.
Figure 10 (i) shows the original radio link with the UE in the WCDMA system. Figure 10 (ii)
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shows that the UE releases the original radio link and sets up another one in the GSM system.
Figure 10 (iii) shows the original radio link with the UE in the GSM system. Figure 10 (iv) shows
that the UE releases the original radio link and sets up another one in the WCDMA system.
Figure 10 (v) shows the original radio link with the UE in the GSM system. Figure 10 (vi) shows
that the UE releases the original radio link and sets up two links in the WCDMA system.
RNSUTRAN
SRNSUTRAN
SRNSUTRAN
SRNSUTRAN
CN (UMTS)N/Ap1 N/Ap2
CN (UMTS)N/Ap1 N/Ap2
CN (UMTS)N/Ap1 N/Ap2
SRNC
NodeB NodeB
(i) (ii)
RNC
NodeB NodeB
(iii)
SRNC
NodeB NodeB
(iv)
GSM/GPRS BSS RNC
NodeB NodeB
GSM/GPRS BSS
GSM/GPRS BSS GSM/GPRS BSS
CN (UMTS)N/Ap1 N/Ap2
RNSUTRAN
RNC
NodeB NodeB
(v) (vi)
Intra CNUTRAN/GSM
GSM/GPRS BSS
SRNSUTRAN
CN (UMTS)
SRNC
NodeB NodeB
GSM/GPRS BSS
CN (UMTS)N/Ap1 N/Ap2 N/Ap1 N/Ap2
Figure 10 Inter-RAT hard handover
3 Signaling Procedures and Message Analyses of Handover Procedures
A typical handover procedure is as follows: measurement controlàmeasurement
WCDMA RNO Handover Procedure Analysis For internal use only
Unsupported measurement ASN.1 violation or encoding error Message type non-existent or not implemented Message not compatible with receiver state Information element value not comprehended Conditional information element error
Protocol error cause
Message extension not comprehended
3.2.3 Active Set Update Procedure
Successful and failure cases of the active set update procedure are illustrated in Figure 17.
Please refer to relevant sections for details on the procedure. The figure clearly describes the
successful and failure cases of the reception of an Active Set Update message by the UE and
reception of an Active Set Update Complete/Failure message by the UTRAN. Sections 2.1.2
through 2.1.8 has detailed each sub-procedure. In failure cases, the handovers will fail, thus
increasing the call-drop rate.
Figure 17 Active set update procedure (successful and failure cases)
SRNC sends an Active Set Update message to the UE
UE procedure, successful case UE procedure, failure case
Reception of the message by the UE, successful case
Reception of the message by the UTRAN, successful case
Configuration
Reception of the message by the UTRAN, failure case
Invalid configurat
Incompatible
Invalid
Wrong Section
a
Section h
Section c
Section d
Section d
Section h
Section f
Section e
Handover succeeds Handover fails
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1. Reception of an ACTIVE SET UPDATE message by the UE (successful case)
Upon reception of an ACTIVE SET UPDATE message the UE shall act upon all received
information elements as specified in the protocol. The UE shall:
- first add the RLs indicated in the IE "Radio Link Addition Information";
- remove the RLs indicated in the IE "Radio Link Removal Information". If the UE active set
is full or becomes full, an RL, which is included in the IE "Radio Link Removal Information" for
removal, shall be removed before adding RL, which is included in the IE "Radio Link Addition
Information" for addition;
- if the ACTIVE SET UPDATE message contained the IE "Ciphering mode info"::
- include and set the IE "Radio bearer uplink ciphering activation time info" to the value of
the variable RB_UPLINK_CIPHERING_ACTIVATION_TIME_INFO;
- if the ACTIVE SET UPDATE message contained the IE "Integrity protection mode info"
with the IE "Integrity protection mode command" set to "Modify":
- include and set the IE "Integrity protection activation info" to the value of the variable
INTEGRITY_PROTECTION_ACTIVATION_INFO;
- if the variable PDCP_SN_INFO is non-empty:
- include the IE "RB with PDCP information list" in the ACTIVE SET UPDATE
COMPLETE message and set it to the value of the variable PDCP_SN_INFO;
- if the ACTIVE SET UPDATE message includes the IE "TFCI combining indicator"
associated with a radio link to be added:
- configure Layer 1 to soft combine TFCI (field 2) of this new link with those links already in
the TFCI (field 2) combining set;
- if the received ACTIVE SET UPDATE message included the IE "Downlink counter
synchronisation info":
- calculate the START value,
- include the calculated START values for each CN domain in the IE "START list" in the
IE "Uplink counter synchronisation info" in the ACTIVE SET UPDATE COMPLETE message;
- set the IE "RRC transaction identifier" in the ACTIVE SET UPDATE COMPLETE message
to the value of "RRC transaction identifier" in the entry for the ACTIVE SET UPDATE message in
the table "Accepted transactions" in the variable TRANSACTIONS, and clear that entry;
- transmit an ACTIVE SET UPDATE COMPLETE message on the uplink DCCH using AM
RLC without waiting for the Physical Layer synchronization;
- if the IE "Integrity protection mode info" was present in the ACTIVE SET UPDATE
message:
start applying the new integrity protection configuration in the uplink for signalling radio
bearer RB2 from and including the transmitted ACTIVE SET UPDATE COMPLETE message;
- if the variable PDCP_SN_INFO is empty:
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- if the ACTIVE SET UPDATE message contained the IE "Ciphering mode info":
- when RLC has confirmed the successful transmission of the ACTIVE SET UPDATE
COMPLETE message:
- perform the actions below;
- if the ACTIVE SET UPDATE message did not contain the IE "Ciphering mode info":
- when RLC has been requested to transmit the ACTIVE SET UPDATE COMPLETE
message:
- perform the actions below;
- if the variable PDCP_SN_INFO is non-empty:
- when RLC has confirmed the successful transmission of the ACTIVE SET UPDATE
COMPLETE message:
- for each radio bearer in the variable PDCP_SN_INFO:
- if the IE "RB started" in the variable ESTABLISHED_RABS is set to
"started":
- configure the RLC entity for that radio bearer to "continue";
- clear the variable PDCP_SN_INFO;
- if the ACTIVE SET UPDATE message contained the IE "Ciphering mode info":
- set the IE "Reconfiguration" in the variable CIPHERING_STATUS to FALSE; and
- clear the variable RB_UPLINK_CIPHERING_ACTIVATION_TIME_INFO;
- if the ACTIVE SET UPDATE message contained the IE "Integrity protection mode info":
- set the IE "Reconfiguration" in the variable INTEGRITY_PROTECTION_INFO to FALSE; and
- clear the variable INTEGRITY_PROTECTION_ACTIVATION_INFO;
- the procedure ends on the UE side.
2. Unsupported configuration in the UE (failure case)
If UTRAN instructs the UE to use a configuration that it does not support, the UE shall:
- keep the active set as it was before the ACTIVE SET UPDATE message was received;
- transmit an ACTIVE SET UPDATE FAILURE message on the DCCH using AM RLC;
- set the IE "RRC transaction identifier" in the ACTIVE SET UPDATE FAILURE message to the value of "RRC transaction identifier" in the entry for the ACTIVE SET UPDATE message in the table "Accepted transactions" in the variable TRANSACTIONS; and
- clear that entry;
- set the IE "failure cause" to "configuration unsupported";
- when the ACTIVE SET UPDATE FAILURE message has been submitted to lower layers for transmission:
- the procedure ends on the UE side.
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3. Invalid configuration (failure case)
If any of the following conditions are valid:
- a radio link indicated by the IE "Downlink DPCH info for each RL" in the IE "Radio link
addition information" has a different spreading factor than the spreading factor for the radio links
in the active set that will be established at the time indicated by the IE "Activation time"; and/or
- a radio link in the IE "Radio link addition information" is also present in the IE "Radio Link Removal Information"; and/or
- the IE "Radio Link Removal Information" contains all the radio links which are part of or will be part of the active set at the time indicated by the IE "Activation time"; and/or
- the variable INVALID_CONFIGURATION is set to TRUE:
the UE shall:
- keep the active set as it was before the ACTIVE SET UPDATE message was received;
- transmit an ACTIVE SET UPDATE FAILURE message on the DCCH using AM RLC;
- set the IE "RRC transaction identifier" in the ACTIVE SET UPDATE FAILURE message to the value of "RRC transaction identifier" in the entry for the ACTIVE SET UPDATE message in the table "Accepted transactions" in the variable TRANSACTIONS; and
- clear that entry;
- set the IE "failure cause" to "Invalid configuration";
- When the ACTIVE SET UPDATE FAILURE message has been submitted to lower layers for transmission:
If the variable INCOMPATIBLE_SECURITY_RECONFIGURATION becomes set to TRUE
due to the received ACTIVE SET UPDATE message, the UE shall:
- transmit a ACTIVE SET UPDATE FAILURE message on the uplink DCCH using AM RLC;
- set the IE "RRC transaction identifier" in the ACTIVE SET UPDATE FAILURE message to the value of "RRC transaction identifier" in the entry for the ACTIVE SET UPDATE message in the table "Accepted transactions" in the variable TRANSACTIONS; and
- clear that entry;
- set the IE "failure cause" to the cause value "incompatible simultaneous reconfiguration";
- when the ACTIVE SET UPDATE FAILURE message has been delivered to lower layers for transmission:
- set the variable INCOMPATIBLE_SECURITY_RECONFIGURATION to FALSE;
- continue with any ongoing processes and procedures as if the ACTIVE SET UPDATE message has not been received;
- and the procedure ends.
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If the variable ORDERED_RECONFIGURATION is set to TRUE; and
- if the activation time for the procedure that has set variable ORDERED_RECONFIGURATION and the activation time for the Active Set Update procedure are within a time window of 5 frames, the UE may:
- transmit a ACTIVE SET UPDATE FAILURE message on the uplink DCCH using AM RLC;
- set the IE "RRC transaction identifier" in the ACTIVE SET UPDATE FAILURE message to the value of "RRC transaction identifier" in the entry for the ACTIVE SET UPDATE message in the table "Accepted transactions" in the variable TRANSACTIONS; and
- clear that entry;
- set the IE "failure cause" to the cause value "incompatible simultaneous reconfiguration";
- when the ACTIVE SET UPDATE FAILURE message has been delivered to lower layers for transmission:
- continue with any ongoing processes and procedures as if the ACTIVE SET UPDATE message has not been received;
- and the procedure ends.
5. Reception of the ACTIVE SET UPDATE COMPLETE message by the UTRAN (successful case)
When the UTRAN has received the ACTIVE SET UPDATE COMPLETE message,
- the UTRAN may remove radio link(s) that are indicated to remove to the UE in case b)
and c); and
- the procedure ends on the UTRAN side.
6. Reception of the ACTIVE SET UPDATE FAILURE message by the UTRAN (failure case)
When the UTRAN has received the ACTIVE SET UPDATE FAILURE message, the UTRAN
may delete radio links that were included in the IE "Radio Link Addition Information" for addition.
The procedure ends on the UTRAN side.
7. Invalid ACTIVE SET UPDATE message (failure case)
If the ACTIVE SET UPDATE message contains a protocol error causing the variable
PROTOCOL_ERROR_REJECT to be set to TRUE according to clause 9, the UE shall perform
procedure specific error handling as follows. The UE shall:
- transmit a ACTIVE SET UPDATE FAILURE message on the uplink DCCH using AM RLC;
- set the IE "RRC transaction identifier" in the ACTIVE SET UPDATE FAILURE message to the value of "RRC transaction identifier" in the entry for the ACTIVE SET UPDATE message in the table "Rejected transactions" in the variable TRANSACTIONS; and
- clear that entry;
- set the IE "failure cause" to the cause value "protocol error";
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- include the IE "Protocol error information" with contents set to the value of the variable PROTOCOL_ERROR_INFORMATION;
- when the ACTIVE SET UPDATE FAILURE message has been delivered to lower layers for transmission:
- continue with any ongoing processes and procedures as if the invalid ACTIVE SET UPDATE message has not been received;
- and the procedure ends.
8. Reception of an ACTIVE SET UPDATE message in wrong state (failure case)
If the UE is in another state than CELL_DCH state upon reception of the ACTIVE SET
UPDATE message, the UE shall perform procedure specific error handling as follows. The UE
shall:
- transmit a ACTIVE SET UPDATE FAILURE message on the uplink DCCH using AM RLC;
- set the IE "RRC transaction identifier" in the ACTIVE SET UPDATE FAILURE message to the value of "RRC transaction identifier" in the entry for the ACTIVE SET UPDATE message in the table "Accepted transactions" in the variable TRANSACTIONS; and
- clear that entry;
- set the IE "failure cause" to the cause value "protocol error";
- include the IE "Protocol error information" with the IE "Protocol error cause" set to "Message not compatible with receiver state";
- when the ACTIVE SET UPDATE FAILURE message has been delivered to lower layers for transmission:
- continue with any ongoing processes and procedures as if the ACTIVE SET UPDATE message has not been received;
- and the procedure ends
3.2.4 Soft Handover Signaling Procedures Analysis
This section focuses on signaling procedures of three typical soft handover procedures,
which are radio link addition, radio link removal and combined radio link addition and removal.
Soft handovers only apply to FDD mode. All the procedures described below are soft handover
procedures with lur interface. Intra-RNC soft handover procedures are simpler than them, that is,
without the SRNC-DRNC part of each procedure. The procedures described in this section are
typical examples only. The signaling procedure of an actual handover must be analyzed on a
case-to-case basis.
Radio link addition signaling procedure analysis Conditions for the soft handover-radio link addition signaling procedure are as follows:
-One or more radio links have been set up between the UE and SRNC;
-A new radio link between the UE and SNRC will be set up through a new NodeB and new
RNC.
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Because only one radio link between the UE and UTRAN will be set up, no macro diversity
combination/splitting will occur in the DRNS. The figure below illustrates the soft handover-radio
link addition signaling procedure.
UE Node BDrift RNS
DriftRNC
ServingRNC
DCH-FPDCH-FP6. Downlink Synchronisation
RNSAP RNSAP1. Radio Link Setup
Request
Start TX
NBAP NBAP2. Radio Link Setup
Request
RNSAP RNSAP
4. Radio Link SetupResponse
NBAP NBAP
3. Radio Link SetupResponse
Start RX
Decision to setupnew RL
RRCRRC9. DCCH : Active Set Update Complete
RRCRRC8. DCCH : Active Set Update
[Radio Link Addition]
ALCAP Iur Bearer Setup5. ALCAP Iub Bearer Setup
DCH-FPDCH-FP7. Uplink Synchronisation
Figure 18 Radio link addition signaling procedure
Signaling procedure:
1. Having decided to set up a new radio link in a new cell under the control of another RNC
(DRNC), the SRNC sends a “Radio Link Setup Request” message to the DRNC via RNSAP,
requesting the later to prepare necessary radio resources. Because the new radio link is the first
one set up between the UE and DRNC, a new lur signaling connection should be set up, which
will bear the UE related RNSAP signaling messages.
Message “Radio Link Setup Request” contains the following parameters: Cell ID, TFS,
TFCS, frequency and uplink scrambling code.
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2. The DRNC judges whether it can fulfill the request for radio resources, and if yes, sends a
NBAP message “Radio Link Setup Request” to the NodeB for it to activate the uplink RX.
Message “Radio Link Setup Request” contains the following parameters: Cell ID, TFS,
TFCS, frequency and uplink scrambling code.
3. The NodeB assigns radio resources on request, and upon the successful completion of
the allocation, sends a NBAP message “Radio Link Setup Response” to the DRNC.
Message “Radio Link Setup Response” contains the following parameters : Signaling end
and transport addressing information message includes the following parameters: signaling end,
transport layer addressing information (AAL2 addressing and AAL2 binding ID for the data
bearer).
4. The DRNC sends a “Radio Link Setup Response” message to the SRNC via RNSAP.
Message “Radio Link Setup Response” contains the following parameters: Transport layer
addressing information (AAL2 addressing and AAL2 binding ID for the data bearer) and adjacent
cell information.
5. The SRNC initiates the establishment of the lur/lub bearer via protocol ALCAP, and
includes in the request an AAL2 binding ID used to bind the lub bearer with a DCH.
6/7. The NodeB and SRNC exchange DCH FP frames “Downlink Synchronization” and
“Uplink Synchronization” to set up bearer synchronization. NodeB activates the downlink TX.
8. The SRNC sends an “Active Set Update” message, which contains radio link addition
parameters, to the UE over the DCCH.
Parameters: Update type, cell ID, downlink scrambling code, power control information and
adjacent cell information.
9. After configuring the parameters based on the RRC message, the UE sends a RRC
message “Active Set Update Complete” to the SRNC.
Radio link deletion signaling procedure analysis Conditions for the soft handover-radio link deletion signaling procedure are as follows:
-One or more radio links have been set up between the UE and SRNC;
-An existing UE-SRNC radio link via the DRNC will be deleted.
The figure below illustrates the soft handover-radio link deletion signaling procedure.
WCDMA RNO Handover Procedure Analysis For internal use only
1. Having decided to delete a radio link, the SRNC sends a RRC message “Active Set
Update”, which contains radio link deletion parameters, to the UE over the DCCH.
Parameters: Update type and cell ID.
2. UE deactivates the downlink RX of the radio link to be deleted and send a RRC message
“Active Set Update Complete” to the SRNC.
3. The SRNC sends a “Radio Link Deletion Request” message to the DRNC via RNSAP.
Parameters: Cell ID and transport layer addressing information.
4. The DRNC sends a NBAP message “Radio Link Deletion Request” to NodeB for it to stop
the TX and RX.
Parameters: Cell ID and transport layer addressing information.
5. The NodeB deactivates radio resources and sends a NBAP message “Radio Link
Deletion Response” to the DRNC.
6. “Radio Link Deletion Response”. The DRNC sends a RNSAP message “Radio Link
Deletion Response” to the SRNC.
7. The SRNC initiates the release of the lur/lub bearer via protocol ALCAP.
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Combined radio link addition and deletion signaling procedure analysis Conditions for the soft handover-combined radio link addition and deletion signaling
procedure are as follows:
-One or more radio links have been set up between the UE and SRNC;
-A new radio link between the UE and SNRC will be set up through a new NodeB and new
RNC.
-An existing UE-SRNC radio link via a NodeB in the SRNC will be deleted.
The figure below illustrates the soft handover-combined radio link addition and deletion
signaling procedure.
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7. Uplink Synchronisation
RNSAP RNSAP
1. Radio Link SetupRequest
Start TX
RNSAP RNSAP
4. Radio Link SetupResponse
NBAP NBAP2. Radio Link Setup Request
NBAP NBAP3. Radio Link Setup Response
Start RX
Decision to setupnew RL and
release old RL
NBAP 10. Radio Link Deletion Request
NBAP NBAP11. Radio Link Release Response
Stop RX and TX
12. ALCAP Iub Data Transport Bearer Release
RRCRRC9. DCCH : Active Set Update Complete
RRCRRC8. DCCH : Active Set Update Command
[Radio Link Addition & Deletion]
NBAP
UE Node BDrift RNS
Node BServing RNS
DriftRNC
ServingRNC
ALCAP Iur Bearer Setup5. ALCAP Iub Data Transport Bearer Setup
DCH-FPDCH-FP
DCH-FPDCH-FP
6. Downlink Synchronisation
Figure 20 Combined radio link addition and deletion signaling procedure
Signaling procedure:
1. Having decided to set up a new radio link in a new cell under the control of another RNC
(DRNC), the SRNC sends a “Radio Link Setup Request” message to the DRNC via RNSAP,
requesting the later to prepare necessary radio resources. Because the new radio link is the first
one set up between the UE and DRNC, a new lur signaling connection should be set up, which
will bear the UE related RNSAP signaling messages.
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Message “Radio Link Setup Request” contains the following parameters: Cell ID, TFS,
TFCS, frequency and uplink scrambling code.
2. The DRNC judges whether it can fulfill the request for radio resources, and if yes, sends a
NBAP message “Radio Link Setup Request” to its NodeB for it to activate the uplink RX.
Message “Radio Link Setup Request” contains the following parameters: Cell ID, TFS,
TFCS, frequency and uplink scrambling code.
3. The NodeB assigns radio resources on request, and upon the successful completion of
the allocation, sends a NBAP message “Radio Link Setup Response” to the DRNC.
Message “Radio Link Setup Response” contains the following parameters : Signaling end
and transport addressing information message includes the following parameters: signaling end,
transport layer addressing information (AAL2 addressing and AAL2 binding ID for the data
bearer).
4. The DRNC sends a “Radio Link Setup Response” message to the SRNC via RNSAP.
Message “Radio Link Setup Response” contains the following parameters: Transport layer
addressing information (AAL2 addressing and AAL2 binding ID for the data bearer) and adjacent
cell information.
5. The SRNC initiates the establishment of the lur/lub bearer via protocol ALCAP, and
includes in the request an AAL2 binding ID used to bind the lub bearer with a DCH.
6/7. The NodeB and SRNC exchange DCH FP frames “Downlink Synchronisation” and
“Uplink Synchronisation” to synchronize the bearer. NodeB activates the downlink TX. 8. The SRNC sends an “Active Set Update” message, which contains radio link addition and
deletion parameters, to the UE over the DCCH.
Parameters: Update type, cell ID, downlink scrambling code, power control information and
adjacent cell information.
9. After configuring the parameters based on the RRC message, the UE deactivates the
downlink RX of the radio link to be deleted and activate the downlink RX of the radio link to be
added, and sends a RRC message “Active Set Update Complete” to the SRNC. 10. The SRNC sends a NBAP message “Radio Link Deletion Request” to NodeB for it to
stop the TX and RX.
Parameters: Cell ID and transport layer addressing information.
11. The NodeB deactivates radio resources and sends a NBAP message “Radio Link
Deletion Response” to the SRNC.
12. The SRNC initiates the release of the lur/lub bearer via protocol ALCAP.
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3.3 Hard Handover Procedure Analysis
3.3.1 General Description of the Hard Handover Procedure
Hard handovers include intra-frequency, inter-frequency and inter-RAT hard handovers, of
which the inter-RAT hard handover procedure is complicated and will be described in section 3.3.
Hard handovers can be also categorized into timing re-initialised hard handovers and
timing-maintained hard handovers in terms of the synchronization method.
1. Timing re-initialised hard handover
The purpose of the timing re-initialised hard handover procedure is to remove all the RL(s) in
the active set and establish new RL(s) along with a change in the UL transmission timing and the
CFN in the UE according to the SFN of the target cell. This procedure is initiated when UTRAN
does not know the target SFN timing before hard handover
Timing re-initialised hard handover initiated by the UTRAN is normally performed by using
the procedure "Physical channel reconfiguration", but may also be performed by using either one
of the following procedures:
- "radio bearer establishment";
- "Radio bearer reconfiguration";
- "Radio bearer release"; or
- "Transport channel reconfiguration".
If IE "Timing indication" has the value "initialise", UE shall:
- execute the Timing Re-initialised hard handover procedure by following the procedure
indicated in the subclause relevant to the procedure chosen by the UTRAN.
2. Timing-maintained hard handover
The purpose of the Timing-maintained hard handover procedure is to remove all the RL(s) in
the active set and establish new RL(s) while maintaining the UL transmission timing and the CFN
in the UE. This procedure can be initiated only if UTRAN knows the target SFN timing before
hard handover. The target SFN timing can be known by UTRAN in the following 2 cases:
- UE reads SFN when measuring "Cell synchronisation information" and sends it to the
UTRAN in MEASUREMENT REPORT message.
- UTRAN internally knows the time difference between the cells.
Timing-maintained hard handover initiated by the network is normally performed by using
the procedure "Physical channel reconfiguration", but may also be performed by using either one
of the following procedures:
- "radio bearer establishment";
- "Radio bearer reconfiguration" ;
- "Radio bearer release"; or
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- "Transport channel reconfiguration".
If IE "Timing indication" has the value "maintain", UE shall initiate the Timing-maintained
hard handover procedure by following the procedure indicated in the subclause relevant to the
procedure chosen by the UTRAN.
The reconfiguration procedures are used to perform timing-maintained hard handovers, i.e.
radio bearer establishment procedure, radio bearer reconfiguration procedure, radio bearer
release procedure, transport channel reconfiguration procedure and physical channel
reconfiguration procedure, which are described as below.,
The radio bearer establishment procedure is used to establish new radio bearer(s). The
normal and failure cases of this procedure are illustrated respectively in Figure 21 and Figure 22.
UE UTRAN
RADIO BEARER SETUP
RADIO BEARER SETUP COMPLETE
Figure 21 Radio bearer establishment, normal case
UE UTRAN
RADIO BEARER SETUP
RADIO BEARER SETUP FAILURE
Figure 22 Radio bearer establishment, failure case
The radio bearer reconfiguration procedure is used to reconfigure parameters for a radio
bearer or signaling link. The normal and failure cases of this procedure are illustrated
respectively in Figure 23 and Figure 24.
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UE UTRAN
RADIO BEARER RECONFIGURATION
RADIO BEARERRECONFIGURATION COMPLETE
Figure 23 Radio bearer reconfiguration, normal case
UE UTRAN
RADIO BEARER RECONFIGURATION
RADIO BEARERRECONFIGURATION FAILURE
Figure 24 Radio bearer reconfiguration, failure case
The radio bearer release procedure is used to release radio bearer(s). The normal and
failure cases of this procedure are illustrated respectively in figures 24 and 25.
UE UTRAN
RADIO BEARER RELEASE
RADIO BEARER RELEASE COMPLETE
Figure 25 Radio bearer release, normal case
UE UTRAN
RADIO BEARER RELEASE
RADIO BEARER RELEASE FAILURE
Figure 26 Radio bearer release, failure case
The transport channel reconfiguration procedure is used to reconfigure transport channel
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parameters. The normal and failure cases of this procedure are illustrated respectively in figures
Figure 27 and Figure 28.
UE UTRAN
TRANSPORT CHANNELRECONFIGURATION
TRANSPORT CHANNELRECONFIGURATION COMPLETE
Figure 27 Transport channel reconfiguration, normal case
UE UTRAN
TRANSPORT CHANNELRECONFIGURATION
TRANSPORT CHANNELRECONFIGURATION FAILURE
Figure 28 Transport channel reconfiguration, failure case
The physical channel reconfiguration procedure is used to establish, reconfigure and release
physical channels. The normal and failure cases of this procedure are illustrated respectively in
Figure 29 and Figure 30.
UE UTRAN
PHYSICAL CHANNELRECONFIGURATION
PHYSICAL CHANNELRECONFIGURATION COMPLETE
Figure 29 Physical channel reconfiguration, normal case
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UE UTRAN
PHYSICAL CHANNELRECONFIGURATION
PHYSICAL CHANNELRECONFIGURATION FAILURE
Figure 30 Physical channel reconfiguration, failure case
3.3.2 Analysis of Hard Handover Related IEs
This section analyzes hard handover related reconfiguration IEs in the following messages:
RADIO BEARER ESTABLISHMENT
RADIO BEARER RECONFIGURATION
RADIO BEARER RELEASE
TRANSPORT CHANNEL RECONFIGURATION
PHYSICAL CHANNEL RECONFIGURATION
1. RADIO BEARER ESTABLISHMENT message
This message is sent by the UTRAN to the UE to establish new radio bearer(s). It can be
used to reconfigure transport and physical channels.
RLC-SAP: AM; Logical channel: DCCH.
IEs in a RADIO BEARER ESTABLISHMENT message are listed in table below. Table10 IEs in a RADIO BEARER ESTABLISHMENT message
Information Element/Group name
Need
Multi Type and reference
Semantics description
Message Type MP Message Type
UE Information Elements
RRC transaction identifier MP RRC
transaction
identifier
10.3.3.36
Integrity check info CH Integrity check
info 10.3.3.16
Integrity protection mode info OP Integrity
protection
mode info
10.3.3.19
Ciphering mode info OP Ciphering
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mode info
10.3.3.5
Activation time MD Activation time
10.3.3.1
Default value is
"now"
New U-RNTI OP U-RNTI
10.3.3.47
New C-RNTI OP C-RNTI
10.3.3.8
RRC State Indicator MP RRC State
Indicator
10.3.3.10
UTRAN DRX cycle length
coefficient
MD UTRAN DRX
cycle length
coefficient
10.3.3.49
Default value is the
existing value of
UTRAN DRX cycle
length coefficient
CN Information Elements
CN Information info OP CN Information
info 10.3.1.3
UTRAN mobility information elements
URA identity OP URA identity
10.3.2.6
RB Information Elements
Signalling RB information to
setup list
OP 1 to
<maxS
RBsetu
p>
For each signalling
radio bearer
established
>Signalling RB information to
setup
MP Signalling RB
information to
setup 10.3.4.24
RAB information to setup list OP 1 to
<maxR
ABsetu
p>
For each RAB
established
>RAB information for setup MP RAB
information for
setup 10.3.4.10
RB information to be affected OP 1 to
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list <maxR
B>
>RB information to be
affected
MP RB information
to be affected
10.3.4.17
Downlink counter
synchronisation info
OP
>RB with PDCP information
list
OP 1 to
<maxR
BallRA
Bs>
This IE is needed
for each RB having
PDCP in the case
of lossless SRNS
relocation
>>RB with PDCP information MP RB with PDCP
information
10.3.4.22
TrCH Information Elements
Uplink transport channels
UL Transport channel
information common for all
transport channels
OP UL Transport
channel
information
common for all
transport
channels
10.3.5.24
Deleted TrCH information list OP 1 to
<maxTr
CH>
>Deleted UL TrCH
information
MP Deleted UL
TrCH
information
10.3.5.5
Added or Reconfigured TrCH
information list
OP 1 to
<maxTr
CH>
>Added or Reconfigured UL
TrCH information
MP Added or
Reconfigured
UL TrCH
information
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10.3.5.2
CHOICE mode OP
>FDD
>>CPCH set ID OP CPCH set ID
10.3.5.3
>>Added or Reconfigured
TrCH
information for DRAC list
OP 1 to
<maxTr
CH>
>>>DRAC static information MP DRAC static
information
10.3.5.7
>TDD (no data)
Downlink transport channels
DL Transport channel
information common for all
transport channels
OP DL Transport
channel
information
common for all
transport
channels10.3.5
.6
Deleted TrCH information list OP 1 to
<maxTr
CH>
>Deleted DL TrCH
information
MP Deleted DL
TrCH
information
10.3.5.4
Added or Reconfigured TrCH
information list
OP 1 to
<maxTr
CH>
>Added or Reconfigured DL
TrCH information
MP Added or
Reconfigured
DL TrCH
information
10.3.5.1
PhyCH information elements
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Frequency info MD Frequency info
10.3.6.36
Default value is the
existing value of
frequency
information
Uplink radio resources
Maximum allowed UL TX
power
MD Maximum
allowed UL TX
power
10.3.6.39
Default value is the
existing maximum
UL TX power
CHOICE channel
requirement
OP
>Uplink DPCH info Uplink DPCH
info 10.3.6.88
>CPCH SET Info CPCH SET Info
10.3.6.13
Downlink radio resources
CHOICE mode MP
>FDD
>>Downlink PDSCH
information
OP Downlink
PDSCH
information
10.3.6.30
>TDD (no data)
Downlink information
common for all radio links
OP Downlink
information
common for all
radio links
10.3.6.24
Downlink information per
radio link list
OP 1 to
<maxR
L>
Send downlink
information for
each radio link
>Downlink information for
each radio link
MP Downlink
information for
each radio link
10.3.6.27
Analysis of IEs:
Message Type: Used to identify the message, mandatory.
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UE information elements: Including the following IEs:
-RRC transaction identifier : Used to identify the RRC, mandatory.
-Integrity check info: Used for integrity check, conditional.
-Integrity protection mode info: Used for integrity protection, optional.
-Ciphering mode info: Used for ciphering, optional.
-Activation time: Used to specify the activation time with “now” as its default value,
mandatory.
-New U-RNTI: Used to configure the new UTRAN RNTI, optional.
-New C-RNTI: Used to configure the new CRNC RNTI, optional.
-RRC State Indicator: Used to describe the RRC state of the UE, mandatory.
-UTRAN DRX cycle length coefficient: Used to specify the UTRAN’s discontinuous RX cycle
length, mandatory.
CN information elements: Used to describe the CN information, optional.
UTRAN mobility information elements: Used to describe UTRAN mobility information,
especially the “URA identity”, optional.
RB information elements: Including the following IEs:
-Signalling RB information to setup list: Used to describe each signaling radio bearer to be
set up, optional.
-RAB information to setup list: Used to describe each radio access bearer, optional.
-RB information to be affected list: Used to describe each radio bearer to be affected,
optional.
-Downlink counter synchronisation info: Used to describe the downlink counter
synchronisation information, optional.
TrCH Information Elements: Including IEs Uplink transport channels and Downlink transport
channels.
Uplink transport channels: Including the following IEs:
-UL Transport channel information common for all transport channels: Used to describe UL
transport channel information common for all transport channels, optional.
-Deleted TrCH information list: Used to list the transport channels to be deleted, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
added or reconfigured, optional.
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
Downlink transport channels: Including the following IEs:
-DL Transport channel information common for all transport channels: Used to describe the
downlink transport information common for all transport channels, optional.
-Deleted TrCH information list: Used to list the transport channels to be deleted, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
added or reconfigured, optional.
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Phy CH information elements: Including IEs Uplink radio resources and Downlink radio
resources, of which the radio bear frequency is mandatory with “current frequency” as its default
value.
Uplink radio resources: Including the following IEs:
-Maximum allowed UL TX power: Used to specify the maximum allowed uplink TX power
with the existing maximum UL TX power as its default value, mandatory.
-CHOICE channel requirement: Used to choose the channel requirement, optional.
Downlink radio resources: Including the following IEs:
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), mandatory.
-Downlink information common for all radio links: Used to describe the downlink information
common for all radio links, optional.
-Downlink information per radio link list: Used to describe the downlink information of each
radio link, optional.
2. RADIO BEARER RECONFIGURATION message
This message is sent by the UTRAN to the UE to reconfigure QoS related parameters for a
radio bearer. The message can be used to change the MAC multiplexing and reconfigure the
transport and physical channels.
RLC-SAP: AM; Logical channel: DCCH.
IEs in a RADIO BEARER RECONFIGURATION message are listed in table below.
Table11 IEs in a RADIO BEARER RECONFIGURATION message
Information Element/Group name
Need
Multi Type and reference Semantics description
Message Type MP Message Type
UE Information elements
RRC transaction identifier MP RRC transaction
identifier 10.3.3.36
Integrity check info CH Integrity check info
10.3.3.16
Integrity protection mode info OP Integrity protection
mode info 10.3.3.19
Ciphering mode info OP Ciphering mode info
10.3.3.5
Activation time MD Activation time
10.3.3.1
Default
value is
"now"
New U-RNTI OP U-RNTI 10.3.3.47
New C-RNTI OP C-RNTI 10.3.3.8
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RRC State Indicator MP RRC State Indicator
10.3.3.10
UTRAN DRX cycle length
coefficient
MD UTRAN DRX cycle
length coefficient
10.3.3.49
Default
value is the
existing
value of
UTRAN
DRX cycle
length
coefficient
CN information elements
CN Information info OP CN Information info
10.3.1.3
UTRAN mobility information elements
URA identity OP URA identity 10.3.2.6
RB information elements
RAB information to
reconfigure list
OP 1 to <
maxRABs
etup >
>RAB information to
reconfigure
MP RAB information to
reconfigure 10.3.4.11
RB information to
reconfigure list
OP 1to
<maxRB>
>RB information to
reconfigure
MP RB information to
reconfigure 10.3.4.18
RB information to be
affected list
OP 1 to
<maxRB>
>RB information to be
affected
MP RB information to be
affected 10.3.4.17
TrCH Information Elements
Uplink transport channels
UL Transport channel
information common for all
transport channels
OP UL Transport channel
information common
for all transport
channels 10.3.5.24
Deleted TrCH information list OP 1 to
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<maxTrCH
>
>Deleted UL TrCH
information
MP Deleted UL TrCH
information 10.3.5.5
Added or Reconfigured
TrCH
information list
OP 1 to
<maxTrCH
>
>Added or Reconfigured UL
TrCH information
MP Added or
Reconfigured UL
TrCH information
10.3.5.2
CHOICE mode OP
>FDD
>>CPCH set ID OP CPCH set ID 10.3.5.3
>>Added or Reconfigured
TrCH
information for DRAC list
OP 1 to
<maxTrCH
>
>>>DRAC static information MP DRAC static
information 10.3.5.7
>TDD (no data)
Downlink transport channels
DL Transport channel
information common for all
transport channels
OP DL Transport channel
information common
for all transport
channels 10.3.5.6
Deleted TrCH information list OP 1 to
<maxTrCH
>
>Deleted DL TrCH
information
MP Deleted DL TrCH
information 10.3.5.4
Added or Reconfigured
TrCH
information list
OP 1 to
<maxTrCH
>
>Added or Reconfigured DL
TrCH information
MP Added or
Reconfigured DL
TrCH information
10.3.5.1
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PhyCH information elements
Frequency info MD Frequency info
10.3.6.36
Default
value is the
existing
value of
frequency
information
Uplink radio resources
Maximum allowed UL TX
power
MD Maximum allowed UL
TX power 10.3.6.39
Default
value is the
existing
maximum
UL TX
power
CHOICE channel
requirement
OP
>Uplink DPCH info Uplink DPCH info
10.3.6.88
>CPCH SET Info CPCH SET Info
10.3.6.13
Downlink radio resources
CHOICE mode MP
>FDD
>>Downlink PDSCH
information
OP Downlink PDSCH
information 10.3.6.30
>TDD (no data)
Downlink information
common for all radio links
OP Downlink information
common for all radio
links 10.3.6.24
Downlink information per
radio link list
OP 1 to
<maxRL>
>Downlink information for
each radio link
MP Downlink information
for each radio link
10.3.6.27
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Analysis of IEs:
Message Type: Used to identify the message, mandatory.
UE information elements: Including the following IEs:
-RRC transaction identifier : Used to identify the RRC, mandatory.
-Integrity check info: Used for integrity check, conditional.
-Integrity protection mode info: Used for integrity protection, optional.
-Ciphering mode info: Used for ciphering, optional.
-Activation time: Used to specify the activation time with “now” as its default value,
mandatory.
-New U-RNTI: Used to configure the new UTRAN RNTI, optional.
-New C-RNTI: Used to configure the new CRNC RNTI, optional.
-RRC State Indicator: Used to describe the RRC state of the UE, mandatory.
-UTRAN DRX cycle length coefficient: Used to specify the UTRAN’s discontinuous RX cycle
length, mandatory.
CN information elements: Used to describe the CN information, optional.
UTRAN mobility information elements: Used to describe UTRAN mobility information,
especially the “URA identity”, optional.
RB information elements: Including the following IEs:
-RAB information to reconfigure list: Used to describe each radio access bearer to be
reconfigured, optional.
-RB information to reconfigure list: Used to describe each radio link to be reconfigured,
optional.
-RB information to be affected list: Used to describe each radio bearer to be affected,
optional.
TrCH Information Elements: Including IEs Uplink transport channels and Downlink transport
channels.
Uplink transport channels: Including the following IEs:
-UL Transport channel information common for all transport channels: Used to describe UL
transport channel information common for all transport channels, optional.
-Deleted TrCH information list: Used to list the transport channels to be deleted, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
added or reconfigured, optional.
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
Downlink transport channels: Including the following IEs:
-DL Transport channel information common for all transport channels: Used to describe the
downlink transport information common for all transport channels, optional.
-Deleted TrCH information list: Used to list the transport channels to be deleted, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
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added or reconfigured, optional.
Phy CH information elements: Including IEs Uplink radio resources and Downlink radio
resources, of which the radio bear frequency is mandatory with “current frequency” as its default
value.
Uplink radio resources: Including the following IEs:
-Maximum allowed UL TX power: Used to specify the maximum allowed uplink TX power
with the existing maximum UL TX power as its default value, mandatory.
-CHOICE channel requirement: Used to choose the channel requirement, optional.
Downlink radio resources: Including the following IEs:
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
-Downlink information common for all radio links: Used to describe the downlink information
common for all radio links, optional.
-Downlink information per radio link list: Used to describe the downlink information of each
radio link, optional.
3. RADIO BEARER RELEASE message
This message is sent by the UTRAN to release radio bearer(s). The message can be used
to reconfigure the transport and physical channels.
RLC-SAP: AM; Logical channel: DCCH.
IEs in a RADIO BEARER RELEASE message are listed in table below. Table12 IEs in a RADIO BEARER RELEASE message
Information Element/Group name
Need Multi Type and reference
Semantics description
Message Type MP Message Type
UE Information Elements
RRC transaction identifier MP RRC transaction
identifier
10.3.3.36
Integrity check info CH Integrity check
info 10.3.3.16
Integrity protection mode info OP Integrity
protection mode
info 10.3.3.19
Ciphering mode info OP Ciphering mode
info 10.3.3.5
Activation time MD Activation time
10.3.3.1
Default value is
"now"
New U-RNTI OP U-RNTI 10.3.3.47
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New C-RNTI OP C-RNTI 10.3.3.8
RRC State Indicator MP RRC State
Indicator
10.3.3.10
UTRAN DRX cycle length
coefficient
MD UTRAN DRX
cycle length
coefficient
10.3.3.49
Default value is
the existing value
of UTRAN DRX
cycle length
coefficient
CN Information Elements
CN Information info OP CN Information
info 10.3.1.3
Signalling Connection
release indication
OP CN domain
identity 10.3.1.1
UTRAN mobility information elements
URA identity OP URA identity
10.3.2.6
RB Information Elements
RAB information to
reconfigure list
OP 1 to <
maxRAB
setup >
>RAB information to
reconfigure
MP RAB information
to reconfigure
10.3.4.11
RB information to release list MP 1 to
<maxRB
>
>RB information to release MP RB information to
release 10.3.4.19
RB information to be affected
list
OP 1 to
<maxRB
>
>RB information to be
affected
MP RB information to
be affected
10.3.4.17
Downlink counter
synchronisation info
OP
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>RB with PDCP information
list
OP 1 to
<maxRB
allRABs>
This IE is needed
for each RB
having PDCP in
the case of
lossless SRNS
relocation
>>RB with PDCP information MP RB with PDCP
information
10.3.4.22
TrCH Information Elements
Uplink transport channels
UL Transport channel
information common for all
transport channels
OP UL Transport
channel
information
common for all
transport
channels
10.3.5.24
Deleted TrCH information list OP 1 to
<maxTrC
H>
>Deleted UL TrCH
information
MP Deleted UL TrCH
information
10.3.5.5
Added or Reconfigured TrCH
information list
OP 1 to
<maxTrC
H>
>Added or Reconfigured UL
TrCH information
MP Added or
Reconfigured UL
TrCH information
10.3.5.2
CHOICE mode OP
>FDD
>>CPCH set ID OP CPCH set ID
10.3.5.3
>>Added or Reconfigured
TrCH
information for DRAC list
OP 1 to
<maxTrC
H>
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>>>DRAC static information MP DRAC static
information
10.3.5.7
>TDD (no data)
Downlink transport channels
DL Transport channel
information common for all
transport channels
OP DL Transport
channel
information
common for all
transport
channels
10.3.5.6
Deleted TrCH information list OP 1 to
<maxTrC
H>
>Deleted DL TrCH
information
MP Deleted DL TrCH
information
10.3.5.4
Added or Reconfigured TrCH
information list
OP 1 to
<maxTrC
H>
>Added or Reconfigured DL
TrCH information
MP Added or
Reconfigured DL
TrCH information
10.3.5.1
PhyCH information elements
Frequency info MD Frequency info
10.3.6.36
Default value is
the existing value
of frequency
information
Uplink radio resources
Maximum allowed UL TX
power
MD Maximum
allowed UL TX
power 10.3.6.39
Default value is
the existing
maximum UL TX
power
CHOICE channel OP
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requirement
>Uplink DPCH info Uplink DPCH info
10.3.6.88
>CPCH SET Info CPCH SET Info
10.3.6.13
Downlink radio resources
CHOICE mode MP
>FDD
>>Downlink PDSCH
information
OP Downlink PDSCH
information
10.3.6.30
>TDD (no data)
Downlink information
common for all radio links
OP Downlink
information
common for all
radio links
10.3.6.24
Downlink information per
radio link list
OP 1 to
<maxRL>
Send downlink
information for
each radio link to
be set-up
>Downlink information for
each radio link
MP Downlink
information for
each radio link
10.3.6.27
Analysis of IEs:
Message Type: Used to identify the message, mandatory.
UE information elements: Including the following IEs:
-RRC transaction identifier : Used to identify the RRC, mandatory.
-Integrity check info: Used for integrity check, conditional.
-Integrity protection mode info: Used for integrity protection, optional.
-Ciphering mode info: Used for ciphering, optional.
-Activation time: Used to specify the activation time with “now” as its default value,
mandatory.
-New U-RNTI: Used to configure the new UTRAN RNTI, optional.
-New C-RNTI: Used to configure the new CRNC RNTI, optional.
-RRC State Indicator: Used to describe the RRC state of the UE. Mandatory.
-UTRAN DRX cycle length coefficient: Used to specify the UTRAN’s discontinuous RX cycle
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length, mandatory.
CN information elements: Used to describe the CN information, optional.
Signalling Connection release indication: Used to describe the signaling connection release
indication.
UTRAN mobility information elements: Used to describe UTRAN mobility information,
especially the “URA identity”, optional.
RB information elements: Including the following IEs:
-RAB information to reconfigure list: Used to describe each radio access bearer to be
reconfigured, optional.
-RB information to reconfigure list: Used to describe each radio link to be reconfigured,
optional.
-RB information to be affected list: Used to describe each radio bearer to be affected,
optional.
-Downlink counter synchronisation info: Used to describe the downlink counter
synchronisation information, optional.
TrCH Information Elements: Including IEs Uplink transport channels and Downlink transport
channels.
Uplink transport channels: Including the following IEs:
-UL Transport channel information common for all transport channels: Used to describe UL
transport channel information common for all transport channels, optional.
-Deleted TrCH information list: Used to list the transport channels to be deleted, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
added or reconfigured, optional.
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
Downlink transport channels: Including the following IEs:
-DL Transport channel information common for all transport channels: Used to describe the
downlink transport information common for all transport channels, optional.
-Deleted TrCH information list: Used to list the transport channels to be deleted, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
added or reconfigured, optional.
Phy CH information elements: Including IEs Uplink radio resources and Downlink radio
resources, of which the radio bear frequency is mandatory with “current frequency” as its default
value.
Uplink radio resources: Including the following IEs:
-Maximum allowed UL TX power: Used to specify the maximum allowed uplink TX power
with the existing maximum UL TX power as its default value, mandatory.
-CHOICE channel requirement: Used to choose the channel requirement, optional.
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Downlink radio resources: Including the following IEs:
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
-Downlink information common for all radio links: Used to describe the downlink information
common for all radio links, optional.
-Downlink information per radio link list: Used to describe the downlink information of each
radio link, optional.
4. TRANSPORT CHANNEL RECONFIGURATION message
This message is sent by the UTRAN to the UE to reconfigure transport channels. The
message can be used to reconfigure the physical channel and TFC subset.
RLC-SAP: AM; Logical channel: DCCH.
IEs in a TRANSPORT CHANNEL RECONFIGURATION message are listed in table below.
Table13 IEs in a TRANSPORT CHANNEL RECONFIGURATION message
Information Element/Group name
Need
Multi Type and reference
Semantics description
Message Type MP Message Type
UE Information Elements
RRC transaction identifier MP RRC
transaction
identifier
10.3.3.36
Integrity check info CH Integrity check
info 10.3.3.16
Integrity protection mode info OP Integrity
protection mode
info 10.3.3.19
Ciphering mode info OP Ciphering mode
info 10.3.3.5
Activation time MD Activation time
10.3.3.1
Default value is
"now"
New U-RNTI OP U-RNTI
10.3.3.47
New C-RNTI OP C-RNTI
10.3.3.8
RRC State Indicator MP RRC State
Indicator
10.3.3.10
UTRAN DRX cycle length MD UTRAN DRX Default value is
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coefficient cycle length
coefficient
10.3.3.49
the existing value
of UTRAN DRX
cycle length
coefficient
CN Information Elements
CN Information info OP CN Information
info 10.3.1.3
UTRAN mobility information elements
URA identity OP URA identity
10.3.2.6
RB information elements
Downlink counter
synchronisation info
OP
>RB with PDCP information
list
OP 1 to
<maxRBall
RABs>
This IE is needed
for each RB
having PDCP in
the case of
lossless SRNS
relocation
>>RB with PDCP information MP RB with PDCP
information
10.3.4.22
TrCH Information Elements
Uplink transport channels
UL Transport channel
information common for all
transport channels
OP UL Transport
channel
information
common for all
transport
channels
10.3.5.24
Added or Reconfigured TrCH
information list
OP 1 to
<maxTrCH
>
>Added or Reconfigured UL
TrCH information
MP Added or
Reconfigured
UL TrCH
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information
10.3.5.2
CHOICE mode OP
>FDD
>>CPCH set ID OP CPCH set ID
10.3.5.3
>>Added or Reconfigured
TrCH
information for DRAC list
OP 1 to
<maxTrCH
>
>>>DRAC static information MP DRAC static
information
10.3.5.7
>TDD (no data)
Downlink transport channels
DL Transport channel
information common for all
transport channels
OP DL Transport
channel
information
common for all
transport
channels
10.3.5.6
Added or Reconfigured TrCH
information list
OP 1 to
<maxTrCH
>
>Added or Reconfigured DL
TrCH information
MP Added or
Reconfigured
DL TrCH
information
10.3.5.1
PhyCH information elements
Frequency info MD Frequency info
10.3.6.36
Default value is
the existing value
of frequency
information
Uplink radio resources
Maximum allowed UL TX MD Maximum Default value is
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power allowed UL TX
power 10.3.6.39
the existing
maximum UL TX
power
CHOICE channel
requirement
OP
>Uplink DPCH info Uplink DPCH
info 10.3.6.88
>CPCH SET Info CPCH SET Info
10.3.6.13
Downlink radio resources
CHOICE mode MP
>FDD
>>Downlink PDSCH
information
OP Downlink
PDSCH
information
10.3.6.30
>TDD (no data)
Downlink information
common for all radio links
OP Downlink
information
common for all
radio links
10.3.6.24
Downlink information per
radio link list
OP 1 to
<maxRL>
Send downlink
information for
each radio link
>Downlink information for
each radio link
MP Downlink
information for
each radio link
10.3.6.27
Analysis of IEs:
Message Type: Used to identify the message, mandatory.
UE information elements: Including the following IEs:
-RRC transaction identifier : Used to identify the RRC, mandatory.
-Integrity check info: Used for integrity check, conditional.
-Integrity protection mode info: Used for integrity protection, optional.
-Ciphering mode info: Used for ciphering, optional.
-Activation time: Used to specify the activation time with “now” as its default value,
mandatory.
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-New U-RNTI: Used to configure the new UTRAN RNTI, optional.
-New C-RNTI: Used to configure the new CRNC RNTI, optional.
-RRC State Indicator: Used to describe the RRC state of the UE. Mandatory.
-UTRAN DRX cycle length coefficient: Used to specify the UTRAN’s discontinuous RX cycle
length, mandatory.
CN information elements: Used to describe the CN information, optional.
UTRAN mobility information elements: Used to describe UTRAN mobility information,
especially the “URA identity”, optional.
RB information elements: Including the following IEs:
-Downlink counter synchronisation info: Used to describe the downlink counter
synchronisation information, optional.
TrCH Information Elements: Including IEs Uplink transport channels and Downlink transport
channels.
Uplink transport channels: Including the following IEs:
-UL Transport channel information common for all transport channels: Used to describe UL
transport channel information common for all transport channels, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
added or reconfigured, optional.
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
Downlink transport channels: Including the following IEs:
-DL Transport channel information common for all transport channels: Used to describe the
downlink transport information common for all transport channels, optional.
-Added or Reconfigured TrCH information list: Used to list the transport channels to be
added or reconfigured, optional.
Phy CH information elements: Including IEs Uplink radio resources and Downlink radio
resources, of which the radio bear frequency is mandatory with “current frequency” as its default
value.
Uplink radio resources: Including the following IEs:
-Maximum allowed UL TX power: Used to specify the maximum allowed uplink TX power
with the existing maximum UL TX power as its default value, mandatory.
-CHOICE channel requirement: Used to choose the channel requirement, optional.
Downlink radio resources: Including the following IEs:
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
-Downlink information common for all radio links: Used to describe the downlink information
common for all radio links, optional.
-Downlink information per radio link list: Used to describe the downlink information of each
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radio link, optional.
5. PHYSICAL CHANNEL RECONFIGURATION message
This message is sent by the UTRAN to the UE to reconfigure physical channels, e.g.
assigning, replacing and releasing a group of physical channels.
RLC-SAP: AM; Logical channel: DCCH.
IEs in a PHYSICAL CHANNEL RECONFIGURATION message are listed in table below. Table14 IEs in a PHYSICAL CHANNEL RECONFIGURATION message
Information Element/Group name
Need Multi Type and reference
Semantics description
Message Type MP Message Type
UE Information Elements
RRC transaction identifier MP RRC transaction
identifier 10.3.3.36
Integrity check info CH Integrity check info
10.3.3.16
Integrity protection mode
info
OP Integrity protection
mode info
10.3.3.19
Ciphering mode info OP Ciphering mode
info 10.3.3.5
Activation time MD Activation time
10.3.3.1
Default value is
"now"
New U-RNTI OP U-RNTI 10.3.3.47
New C-RNTI OP C-RNTI 10.3.3.8
RRC State Indicator MP RRC State
Indicator 10.3.3.10
UTRAN DRX cycle length
coefficient
MD UTRAN DRX cycle
length coefficient
10.3.3.49
Default value is
the existing value
of UTRAN DRX
cycle length
coefficient
CN Information Elements
CN Information info OP CN Information info
10.3.1.3
UTRAN mobility information elements
URA identity OP URA identity
10.3.2.6
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RB information elements
Downlink counter
synchronisation info
OP
>RB with PDCP information
list
OP 1 to
<max
RBall
RABs
>
This IE is needed
for each RB
having PDCP in
the case of
lossless SRNS
relocation
>>RB with PDCP
information
MP RB with PDCP
information
10.3.4.22
PhyCH information elements
Frequency info MD Frequency info
10.3.6.36
Default value is
the existing value
of frequency
information
Uplink radio resources
Maximum allowed UL TX
power
MD Maximum allowed
UL TX power
10.3.6.39
Default value is
the existing value
of the maximum
allowed UL TX
power
CHOICE channel
requirement
OP
>Uplink DPCH info Uplink DPCH info
10.3.6.88
>CPCH SET Info CPCH SET Info
10.3.6.13
>CPCH set ID CPCH set ID
10.3.5.3
Downlink radio resources
CHOICE mode MP
>FDD
>>Downlink PDSCH
information
OP Downlink PDSCH
information
10.3.6.30
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>TDD (no data)
Downlink information
common for all radio links
OP Downlink
information
common for all
radio links
10.3.6.24
Downlink information per
radio link list
OP 1 to
<max
RL>
Send downlink
information for
each radio link
>Downlink information for
each radio link
MP Downlink
information for
each radio link
10.3.6.27
Analysis of IEs:
Message Type: Used to identify the message, mandatory.
UE information elements: Including the following IEs:
-RRC transaction identifier : Used to identify the RRC, mandatory.
-Integrity check info: Used for integrity check, conditional.
-Integrity protection mode info: Used for integrity protection, optional.
-Ciphering mode info: Used for ciphering, optional.
-Activation time: Used to specify the activation time with “now” as its default value,
mandatory.
-New U-RNTI: Used to configure the new UTRAN RNTI, optional.
-New C-RNTI: Used to configure the new CRNC RNTI, optional.
-RRC State Indicator: Used to describe the RRC state of the UE. Mandatory.
-UTRAN DRX cycle length coefficient: Used to specify the UTRAN’s discontinuous RX cycle
length, mandatory.
CN information elements: Used to describe the CN information, optional.
UTRAN mobility information elements: Used to describe UTRAN mobility information,
especially the “URA identity”, optional.
RB information elements: Including the following IEs:
-Downlink counter synchronisation info: Used to describe the downlink counter
synchronisation information, optional.
Phy CH information elements: Including IEs Uplink radio resources and Downlink radio
resources, of which the radio bear frequency is mandatory with “current frequency” as its default
value.
Uplink radio resources: Including the following IEs:
-Maximum allowed UL TX power: Used to specify the maximum allowed uplink TX power
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with the existing maximum UL TX power as its default value, mandatory.
-CHOICE channel requirement: Used to choose the channel requirement, optional.
Downlink radio resources: Including the following IEs:
-CHOICE mode: Used to describe the chosen mode (FDD or TDD), optional.
-Downlink information common for all radio links: Used to describe the downlink information
common for all radio links, optional.
-Downlink information per radio link list: Used to describe the downlink information of each
radio link, optional.
3.3.3 Hard Handover Signaling Procedure
The procedure described in this section is based on lur interface with the UE in the CELL_DCH state. See figure below.
WCDMA RNO Handover Procedure Analysis For internal use only