Views on IEEE 802.16m Frame Structure Document Number: C80216m-07_354 Date Submitted: November 12, 2007 Source: Sassan Ahmadi ([email protected]) Intel Corporation Venue: Atlanta, GA Base Contribution: C80216-07_354 Purpose: For discussion and approval by IEEE 802.16 Working Group Notice: This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16. Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: <http://standards.ieee.org/guides/bylaws/sect6-7 .html#6> and < http://standards.ieee.org/guides/opman/ sect6.html#6.3>. Further information is located at <http://standards.ieee.org/board/pat/pat-material.html > and <http://standards.ieee.org/board/pat >.
Views on IEEE 802.16m Frame Structure Document Number: C80216m-07_354 Date Submitted: November 12, 2007 Source: Sassan Ahmadi ([email protected])
Dec 27, 2015
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Views on IEEE 802.16m Frame Structure
Document Number: C80216m-07_354
Date Submitted: November 12, 2007
Source: Sassan Ahmadi ([email protected]) Intel Corporation Venue:
Atlanta, GA Base Contribution:
C80216-07_354 Purpose:
For discussion and approval by IEEE 802.16 Working GroupNotice:
This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein.
Release:The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16.
Patent Policy:The contributor is familiar with the IEEE-SA Patent Policy and Procedures:
<http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and <http://standards.ieee.org/guides/opman/sect6.html#6.3>.
Further information is located at <http://standards.ieee.org/board/pat/pat-material.html> and <http://standards.ieee.org/board/pat >.
2
802.16m OFDMA Numerology
Transmission Bandwidth (MHz) 1.25 1.6 5 10 20
Sampling Frequency (MHz)1.4 1.92 5.6 11.2 22.4
FFT Size 128 128 512 1024 2048
Sub-Carrier Spacing (kHz) 10.94 15 10.94 10.94 10.94
Tu (us) 91.4 66.67 91.4 91.4 91.4
Cyclic Prefix (CP) Ts (us)Number of OFDM Symbols per
FrameIdle Time (us)
Tg=1/4 Tu91.4 +
22.85=114.2543 87.25
Tg=1/8 Tu91.4 +
11.42=102.8248 64.64
Tg=1/16 Tu 91.4 + 5.71=97.11 51 47.39
Tg=1/32 Tu 91.4 + 2.86=94.26 53 4.22
25/28 8000/8000 nnBWfs
Frame Size – (Number of OFDM Symbols) * Ts
The idle time in FDD mode may be used for channel or noise measurements
TD-SCDMA Coexistence ( Details are FFS)
3
802.16e Frame Structure
...
TTG RTG
DL UL
Band 3
Band B- 2
5 ms
Band 1
Band 0
Band 2
Band B- 1
Bin
...
...
...
...
UL control symbols
...
...
...
...
Tile
...
Bin
...
PUSC zone
Diversity zone
AMC zone AMC zone
Diversity zone
......
...
Preamble
4
802.16m Super-Frame ConceptFDD and TDD Modes
Super-Frame
OFDM Symbols (Symbols are numbered S#0 to S#5)
Sub-Frame (Sub-frames are numbered SF#0 to SF#7)
Frame (Frames are numbered F#0 to F#3)
System Configuration Information, Paging, other Broadcast Information
5
Concept of Time Zones (TDD)
SF#0
DL
SF#1
DL
SF#2
DL
SF#3
DL
SF#4
DL
SF#5
UL
SF#6
UL
SF#7
UL
SF#0
DL
SF#1
DL
SF#2
DL
SF#3
DL
SF#4
DL
SF#5
UL
SF#6
UL
SF#7
UL
SF#0
DL
SF#1
DL
SF#2
DL
SF#3
DL
SF#4
DL
SF#5
UL
SF#6
UL
SF#7
UL5 ms Radio Frame
Legacy DL Zone New DL ZoneLegacy UL Zone
New UL Zone
1. In a mixed deployment, the allocation of time zones in the TDD duplex mode shall be as shown above. The duration of the zones may vary. Every frame shall start with a preamble and the MAP followed by legacy DL zone since legacy terminals/relays expect 802.16e zones here. The UL portion shall start with legacy UL zone since legacy BS/terminals/relays expect 802.16e control information be sent here. In a green-field deployment, the legacy zones can be removed.
2. Switching points should be synchronized across network to reduce inter-cell interference. 3. The switching points would require use of idle symbols to accommodate the gaps. In case of TDD operation
with the generic frame structure, the last symbol in the slot immediately preceding a downlink-to-uplink/uplink-to-downlink switching point may be reserved for guard time and consequently not transmitted.
Switching Point
The duration of the zones is hypothetical and may vary
6
Concept of Time Zones (FDD)
SF#0
SF#1
SF#2
SF#3
SF#4
SF#5
SF#6
SF#7
SF#0
SF#1
SF#2
SF#3
SF#4
SF#5
SF#6
SF#7
SF#0
SF#1
SF#2
SF#3
SF#4
SF#5
SF#6
SF#7
SF#0
SF#1
SF#2
SF#3
SF#4
SF#5
SF#6
SF#7
SF#0
SF#1
SF#2
SF#3
SF#4
SF#5
SF#6
SF#7
SF#0
SF#1
SF#2
SF#3
SF#4
SF#5
SF#6
SF#7
5 ms Radio Frame
Legacy DL Zone New DL Zone Idle Time
Legacy UL ZoneNew UL Zone Idle Time
In a mixed deployment, the legacy DL/UL zones refer to 802.16REV FDD zones that use 802.16e physical resource structure and permutations. In a green-field deployment, the legacy zones may be removed.
DL
UL
The duration of the zones is hypothetical and may vary
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