Bit selection and repetition IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: C80216m-08_1271 Date Submitted: 2008-10-30 Source:

Slides:

Advertisements

Similar presentations

Reduced Signaling Overhead for Retransmissions on the UL of m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-07/250.

Advertisements

ProjectIEEE Broadband Wireless Access Working Group TitleUplink Pilot Structure for IEEE802.16m Date Submitted

802.16m Frame Structure: Uplink Subframe Aggregation IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-08/099 Date Submitted:

Relative Timing of Super-Frames in the Legacy-Support Mode IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-08/244.

Comments on HO decision and initiation ( ) IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-10_0765 Date Submitted:

New Bit-Selection Method Suitable for Adaptive HARQ IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0999 Date Submitted:

Macro Diversity for E-MSB IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-08/981r1 Date Submitted: Source:

IEEE C802.16m-08/539 Coding for IEEE802.16m Document Number: IEEE C802.16m-08/539 Date Submitted: Source: Mohammed Nafie, Cairo University Ahmed.

Using Probability Factor for MS feedback in E-MBS Document Number: IEEE C802.16m-09/0071 Date Submitted: Source: Hua Xu, Steven Xu, Suresh Kalyanasundaram,

Frame structure supporting the WirelessMAN-OFDMA frames IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-09_0475r1 Date.

AWD Text Modification to Non-adaptive precoding in DL MIMO Document Number: IEEE C80216m-09_0896r1 Date Submitted: Source: Kiran Kuchi, J. Klutto.

Relay DG Report (for Session #63.5 TGm Closing) IEEE Presentation Submission Template (Rev. 9) Document Number: C80216m-09_2211 Date Submitted:

Common Header design in m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0178 Date Submitted: Source:

8Tx Dedicated Pilot Pattern Simulation Results IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0805 Date Submitted:

8Tx Pilot Pattern Performance for IEEE m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0544 Date Submitted:

Unicast transmission assisted HARQ for enhanced MBS Document Number: IEEE S802.16m-08_1140 Date Submitted: Source: Xiaolong ZHU, Hongwei YANG,

Proposed Feature Rapporteur Group Timelines and Call for contributions IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0762r2.

1 Hybrid ARQ Operation for IEEE m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/454 Date Submitted:

HARQ Operational Modes for m Document Number: S80216m-08/322 Date Submitted: Source: Yih-Shen Chen, Kelvin Chou, I-Kang Fu, and Paul Cheng.

16m Relay frame structure considering interfering issue IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/1176r1.

1 Proposal for IEEE m DL Control Structure Document Number: IEEE C802.16m-08/1075r1 Date Submitted: Source: Sophie Vrzic, Mo-Han Fong,

Performance Evaluation of Transformation Codebook for 8TX IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/2731.

Uplink Pilot Structure for IEEE802.16m Document Number: IEEE C802.16m-08/293r4 Date Submitted: Source: Mohammed Nafie, Cairo University Mohamed.

Uplink Control Information Content for Bandwidth Request Channel IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0401.

Preamble Requirements in IEEE802.16m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/485 Date Submitted:

1 DL Unicast Service Control Channel Structure and High Level Design Document Number: IEEE C80216m-08/1270 Date Submitted: Source: Yi Hsuan,

C80216m-08_216 ProjectIEEE Broadband Wireless Access Working Group TitleDownlink Physical Resource Allocation Unit Date Submitted.

Notice: This document does not represent the agreed views of the IEEE Working Group or any of its subgroups. It represents only the views of the.

Notice: This document does not represent the agreed views of the IEEE Working Group or any of its subgroups. It represents only the views of the.

Synchronization Drafting Group Schedule Document Number: IEEE C802.16m-09/0379 Date Submitted: Source: Paul Cheng

HARQ Architecture (Protocol and Timing) in IEEE m Document Number: IEEE S802.16m-08/411 Date Submitted: Source: Doo-hyun Sung, Hyungho.

Femtocell Over-The-Air Signaling Supported by Relay Link Document Number: IEEE C802.16m-09/0809 Date Submitted: 2009/04/24 Source: Hung-Yu Wei, Shih-Lung.

MCS Adaptation and Feedback Mechanism in m MBS IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S80216m-08/1151 Date Submitted:

Conventions for the arrangement of A-AMAP IEs in the A-AMAP region to reduce blind decoding complexity – Proposed AWD Text Document Number: IEEE C80216m-09_1332.

Group Sleep Mode in IEEE m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/591r3 Date Submitted:

Bit selection method for IEEE m Document Number: IEEE C802.16m-09/0674 Date Submitted: Source: Seunghyun Kang, Sukwoo Lee {sh_kang,

MIMO HARQ IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08_1227 Date Submitted: Source: Soma Bandyopadhyay.

Design of the CDMA Allocation A-MAP IE Document Number: IEEE S802.16m-09/1420 Date Submitted: Source: Heejeong Cho

Synchronous non-adaptive Hybrid ARQ for distributed subcarrier mode Document Number: S80216m-08_290 Date Submitted: Source: Alexei Davydov Voice:

Hybrid ARQ for synchronous allocation in distributed subcarrier mode Document Number: S80216m-08_290r1 Date Submitted: Source: Alexei Davydov.

1 SDD Comments on PHY Segmentation for Multicarrier Operation Document Number: Slides S80216m-09/xxxx Date Submitted: Source: Lei Huang Panasonic.

Project Planning Committee Opening Report (Session #77) IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE Gdoc.

Performance Evaluation of Transformation Codebook for 8TX IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/2731.

Results on Downlink Pilot Structures IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-08/762 Date Submitted:

Requirements projected by Operators’ sub group of Broadband Wireless Consortium of India (BWCI) and Impacts on Uplink Multiple Access Choice IEEE

Performance comparison of Constellation Rearrangement and Bit Rearrangement IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE.

Collaborative uplink MIMO techniques for IEEE m Document Number: C80216m-08/638 Date Submitted: 7/7/2008 Source: Mohamed Abdallah Mohammed Nafie.

AWD Text Modification to Non-adaptive precoding in DL MIMO Document Number: IEEE C80216m-09_0896 Date Submitted: Source: Kiran Kuchi, J. Klutto.

Relay/EMBS Ad-Hoc Group Report Document Number: IEEE C802.16m-09/2678r1 Date Submitted: Source: Kanchei(Ken) Loa Relay/LBS/EMBS.

Multi-Level Codes Sequence for Simultaneous MCS Feedback IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S80216m-08/1152 Date.

1 Comparison of Variable and Fixed MCS for DL Unicast Service Control Channel Document Number: IEEE C80216m-08/1269 Date Submitted: Source:

Project Planning Committee (PPC): Session #70 WG Opening Plenary Report IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE.

Session # Maintenance Task Group Opening Report IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE maint-11/0028.

1 Modifications on Subband (SB) Partitioning Equations ( and ) IEEE Presentation Submission Template (Rev. 9) Document Number:

Clarification on the Usage of Femtocell Over The Air (OTA) Signaling ( ) Document Number: IEEE C802.16m-09/2603 Date Submitted: Source:

[A Reliable Multicast Service in m]

Document Number: IEEE C80216m-09_2238 Date Submitted:

Uplink Pilot Structure for IEEE802.16m

Proposal for Downlink HARQ Scheme

Project Planning Committee Opening Report

HARQ Soft Buffer Management for m

MCS signaling for reducing MAP overhead

Resource Shifting in Persistent Scheduling

PMI Feedback Mechanism

Network Coding Retransmission Design with Common Feedback Channel

Bandwidth Request Indicator

Network Synchronization Considerations for n

HARQ Feedback Joint Coding

HARQ and ARQ Interactions

ARQ protocol in m IEEE Presentation Submission Template (Rev. 9)

Presentation transcript:

Bit selection and repetition IEEE Presentation Submission Template (Rev. 9) Document Number: C80216m-08_1271 Date Submitted: Source: Soma Bandyopadhyay TATA Consultancy Kiran Kuchi J Klutto Milleth CEWiT Venue: IEEE m-08/040 - Call for Comments and Contributions on Project m System Description Document (SDD) Base Contribution: This is the supported contribution for the comment uploaded as tgmsdd_Bandyopadhyay_Soma.cmtb. Purpose: To be discussed and adopted by TGm for the m SDD during the session #58 meeting in Dallas, USA Notice: This document does not represent the agreed views of the IEEE 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 Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and. Further information is located at and.

Background In , both synchronous and asynchronous mode of HARQ are supported. Downlink it supports asynchronous and uplink synchronous. It uses HARQ with soft combining (erroneously received packets are stored in buffer memory and later combined with the retransmitted packets). Set of coded bits transmitted in each retransmission can be varied provided they represent the same information bits, also the modulation scheme can be varied Based on the decision of synchronous and asynchronous mode of HARQ resource allocation parameter varies Important parameters are :  Allocation period  MCS

Motivation Who guides the resource-allocator to take the decision of synchronous and asynchronous HARQ  Drivers of synchronous and asynchronous HARQ Downlink supports asynchronous mode of HARQ  Adaptive and non-adaptive mode.  Variation of MCS /Constant MCS  Rate matching block works accordingly. Adaptive HARQ Mechanism: The intention of this proposal is to address the FFS of the section Adaptive HARQ of of IEEE m- 08/003r5 SDD document

Proposal Downlink : Supports asynchronous mode of HARQ. Uplink : Supports synchronous mode of HARQ. Scheduler uses the traffic parameters of the incoming packet as determined by the admission control module. Incoming data packets are accumulated in the data-buffer, accumulation of certain amount of data, is termed as accumulated data length (al) (al < total buffer length). Based on its available bandwidth and link quality DL-transmitter determines the modulation and coding rate (MCS), and also determines the resources required to be mapped inside the physical layer. It determines the allocation period (AT), which is a function of buffer length, modulation and coding rate. AT (Allocation period) = f(al,MCS). AT gives the time duration while same resource allocation will be used by the physical layer. Data packet of fixed-size arrives at fixed time intervals does not require any variable MCS. Retransmission and HARQ ACK feedback time duration are also predictive and fixed in case of fixed size data packet, thus the non-adaptive HARQ becomes the best choice.Signaling overhead can be reduced by invoking A-synchronous HARQ as synchronous way in this case (considering as a special case of a-synchronous). It has been also assumed that link quality is not varying significantly in this case

Proposal

Proposal- Contd Data packets of variable size with variable data rate need the varying resource allocation every time for every new transmission and even for retransmission. So getting of HARQ-feedback and retransmission time will vary accordingly. Thus a-synchronous HARQ with adaptive HARQ i.e. having varying modulation and coding rate becomes the best choice in this case.

Proposal- Contd Non adaptive HARQ – Fixed packet size and predictive data Adaptive HARQ - Data packets of variable size with variable data rate need the varying resource allocation every time for every new transmission and even for retransmission. So getting of HARQ-feedback and retransmission time will vary accordingly. Thus a- synchronous HARQ with adaptive HARQ i.e. having varying modulation and coding rate becomes the best choice in this case.