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1xEVDV Reverse Link Overview 1xEVDV Reverse Link Overview

1xEVDV Reverse Link Overview - PDF document

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1xEVDV Reverse Link Overview - PPT Presentation

1xEVDV Reverse Link Summary StatusAn adhoc group in 3GPP2 has been working on selecting a framework for the Reverse Link under TSGC Working Group 5Five different Reverse Link proposals and addit ID: 951661

reverse link proposals scheduling link reverse scheduling proposals data transmission considered proposal fast autonomous channels packet control cdma2000 based

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1xEV-DV Reverse Link Overview 1x-EV-DV Reverse Link Summary & StatusAn ad-hoc group in 3GPP2 has been working on selecting a framework for the Reverse Link under TSG-C Working Group 5Five different Reverse Link proposals and additional component proposals are being considered“Winning”proposal may be a combination of those being consideredA number of additional p

roposals are being considered as component technologies that may be included regardless of which proposal is Backward compatibility with cdma2000 1xCombination of TDM/CDM operationScheduling and congestion control mechanismsShared packet data channel (fast scheduling)Autonomous transmission with congestion controlCombinations thereofFrame sizesFixed (2.5, 5, an

d 20 ms)Dynamically variable frame sizes (multi-frames are also possible)Transmission rateFixed, based upon schedulingFixed, based upon scheduling with some MS autonomyTotally autonomous by MSAdaptive Modulation and CodingPhysical layer ARQSimple energy combiningSimple incremental redundancyAsynchronous adaptive incremental redundancy Other Reverse Link AspectsQ

uasi-Active State for packet data applications to improve power consumption Higher data rates than cdma2000Proposed up to 2.4 Mbps in 1.25 MHzInterference cancellationControl signaling on Forward Link to support Reverse LinkNew control channels (cdma2000 1x) to enable fast RL operationSpatial/Time diversity (e.g., STS, MIMO)Spectrally efficient spreading codesBe

tter use of common channels for efficient transmission of short data packetsCode orthogonal reverse link Status of Reverse Link Proposal EvaluationPerformance results for the various proposals are being examined prior to reaching a frameworkMerits of scheduling approaches: “fast”scheduling, “autonomous”transmission, and a combination thereof are being considere