Title: Comparison of Broadcast and Multicast Proposals, Revision 1

Transcription

1 WG Conference Call C R1 Title: Comparison of Broadcast and Multicast Proposals, Revision 1 Abstract: Source: This contribution compares the four broadcast and multicast related proposals in TSG-C. These include 1. Broadcast for idle-state MS by QUALCOMM, Samsung, and SKT, [1] and [];. Broadcast for trafficchannel state MS by CCSA, RITT, ZTE, China Unicom, Nortel Networks, and Nokia, [5];. Sharing of Forward Fundamental Channel and Supplemental Channel by Lucent, [], [6]; 4. Sharing of F-FCH by QUALCOMM, [4], and 5. Sharing of F-FCH and F-DCCH by Via Telecom. This revision includes comparison of [7]. Tao Chen QUALCOMM Incorporated tchen@qualcomm.com Date: August 8, 00 Recommendation: FYI. Notice QUALCOMM Incorporated grants a free, irrevocable license to GPP and its Organization Partners to incorporate text or other copyrightable material contained in the contribution and any modifications thereof in the creation of GPP publications; to copyright and sell in Organizational Partner s name any Organizational Partner s standards publication even though it may include portions of the contribution; and at the Organization Partner s sole discretion to permit others to reproduce in whole or in part such contributions or the resulting Organizational Partner s standards publication. QUALCOMM Incorporated is also willing to grant licenses under such contributor copyrights to third parties on reasonable, non-discriminatory terms and conditions for purpose of practicing an Organizational Partner s standard which incorporates this contribution. This document has been prepared by QUALCOMM Incorporated to assist the development of specifications by GPP. It is proposed to the Committee as a basis for discussion and is not to be construed as a binding proposal on QUALCOMM Incorporated. QUALCOMM Incorporated specifically reserves the right to amend or modify the material contained herein and nothing herein shall be construed as conferring or offering licenses or rights with respect to any intellectual property of QUALCOMM Incorporated other than provided in the copyright statement above.

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3 1 1 INTRODUCTION This contribution summarizes and compares the four broadcast and multicast related proposals currently under consideration for cdma000 Rev. D. 1

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5 1 COMPARISON OF PROPOSALS The following table summarizes the proposals 1. Broadcast for Idle MSs by QC, Samsung, SKT. Broadcast by CCSA, RITT, ZTE, Nortel, Nokia. Sharing FL Traffic Channel by Lucent 4. Forward Multicast Fundamental Channel by QC 5. Forward Multicast Fundamental Channel by Via Discovery of service Broadcast System Parameters Message on F- PCH/F-BCCH Broadcast System Parameters Message on F-PCH/F-BCCH Not specified. Could be through applications Not specified. Could be through applications Not specified. Could be through applications Initiation of broadcast/ multicast reception Idle state MS autonomously starts the reception. No BS actions required. MS might be required to register. Assigned by BS. MS can request, too. Assigned by BS. MS can request, too. Assigned by BS. MS can request, too. Assigned by BS. MS can request, too. End of reception MS leaves autonomously (might need registration) Terminated by BS Terminated by BS Terminated by BS Terminated by BS MS State Idle Traffic Channel Traffic Channel Traffic Channel Traffic Channel 1

6 Channel Configuration: FL F-BSCH (shared), with attributes identical to F- SCH, plus optional outer coding using Reed Solomon code F-BSCH (shared) and per-ms F-FCH or F- DCCH. Power control commands from BS are punctured onto F-FCH or F-DCCH. Outer coding on F- BSCH possible F-FCH and optionally F-SCH (both shared among all MS in sector), F-DCCH (shared among some or all MSs in sector), F- CPCCH (Each MS s Forward Power Control Subchannel is a TDM ed sub-stream) F-MFCH (Multicast Fundamental Channel, shared among all MS in sector), F-DCCH (shared among some or all MSs in sector), F-CPCCH (Each MS s Forward Power Control Subchannel is a TDM ed substream). Sharing an F-MSCH possible F-MFCH (Multicast Fundamental Channel, shared among all MS in sector), F-SDCCH (shared among some or all MSs in sector), F-CPCCH (Each MS s Forward Power Control Subchannel is a TDM ed substream). Sharing an F-MSCH possible Channel Configuration: RL None (MS goes to R-ACH or R- EACH for registration and access) R-DCCH or R-FCH R-DCCH or R-FCH R-FCH without continuous transmission requirement. R- DCCH possible Same as 4. Active Set Not defined by standard (MS chooses autonomously) BS assigned. F- BSCH can be from a subset of the Active Set of the F-FCH/F- DCCH One Active Set for F- FCH, F-DCCH, and F- CPCCH. Possibly subset for F-SCH One Active Set for F-MFCH, F-DCCH, and F-CPCCH Same as 4.

7 Soft Handoff FL only. Based on neighboring sector information carried on the overhead channels, MS can autonomously add FL legs. No PSMM or BS involvement Similar to existing procedure (Pilot Strength Measurement Message, Handoff Direction Message, Handoff Completion Message, etc.) Similar to existing procedure (Pilot Strength Measurement Message, Handoff Direction Message, Handoff Completion Message, etc.) Similar to existing procedure (Pilot Strength Measurement Message, Handoff Direction Message, Handoff Completion Message, etc.) Same as 4. FL Power Control None (no MS feedback) MS feedback (Reverse Power Control Subchannel punctured on the Reverse Pilot Channel) as in the various forward power control modes (FPC_MODE) Not specified. Could be similar to. Split feedback from the MS about F- MFCH and F- DCCH/F-CPCCH independently, as in FPC_MODE 001 or 010 Same as 4. RL Power Control N/A. No RL transmission in general BS commands punctured on the per-ms F-DCCH/F- FCH BS commands sent on the F-CPCCH BS commands sent on the F-CPCCH BS commands sent on the F-CPCCH

8 Support of many MSs per sector Very high capacity, limited by paging capacity of the sector Relatively low capacity. Up to the Walsh code limitation (from the per-ms F- FCH/F-DCCH required), FL power limitation (by the total of F-BSCH and per-ms F-FCH/F- DCCH), and RL interference limitation (per MS R- PICH and R- DCCH/R-FCH) Medium capacity. Up to FL power limitation (by the total of F- FCH/F-BSCH, shared F-DCCH, and F- CPCCH), and RL interference limitation (per MS R-PICH and R- DCCH/R-FCH) Medium capacity. Up to FL power limitation (by the total of F-MFCH, shared F-DCCH, and F-CPCCH), and RL interference limitation (per MS R-PICH and R- DCCH/R-FCH) Medium capacity. Up to FL power limitation (by the total of F-MFCH, shared F-DCCH, and F-CPCCH), and RL interference limitation (per MS R-PICH and R- DCCH/R-FCH) Support of many MSs in many sectors Suitable Less efficient Less efficient Less efficient Less efficient Reference 1. cdma000 Broadcast Services Stage : System Design, Rev., GPP TSG-C WG Contribution from QUALCOMM, Samsung, and SKT, C , June 10, 00. Shared FCH/DCCH Proposal, GPP TSG-C WG Contribution from Lucent, C , March 17, 00. Proposed Physical Layer Text for the Broadcast Supplemental Channel, Revision, GPP TSG-C WG Contribution from QUALCOMM, Samsung, and SKT, C , June 16, A Dynamic Shared Channel for cdma000 Dynamic Shared Channel for cdma000, GPP TSG-C WG / Contribution, from QUALCOMM C /C , July 14/August 18, Dedicated mode (on traffic channel) BCMCS, GPP TSG-C Plenary/WG/ Contribution from CCSA, RITT, ZTE, Nortel Networks, and Nokia, C /C /C R, August 18, 00 4

9 Release D BCMCS Functional Requirements, GPP TSG-C WG Contribution from Lucent, C , August 18, Shared Forward DCCH Channel, GPP TSG-C WG Contribution from Via Telecom, C , August 8, 00 5