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2011.10 Huawei Tech. Ltd.

CoMP 专题讨论组工作汇报. 2011.10 Huawei Tech. Ltd. 3GPP CoMP WI 进展汇报 （ DL ）. RAN1 66bis 会上 DL CoMP 讨论很多，因为时间有限，讨论主要在 High-level proposals on DL CoMP Scheme CSI 反馈 DL RS 增强 DL CoMP 控制信令. 3GPP CoMP WI 进展汇报 （ DL ）. CSI Feedback

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2011.10 Huawei Tech. Ltd.

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  1. CoMP专题讨论组工作汇报 2011.10 Huawei Tech. Ltd.

  2. 3GPP CoMP WI进展汇报（DL） • RAN1 66bis会上DL CoMP讨论很多，因为时间有限，讨论主要在 • High-level proposals on DL CoMP Scheme • CSI 反馈 • DL RS增强 • DL CoMP控制信令

  3. 3GPP CoMP WI进展汇报（DL） • CSI Feedback • Definition: “CSI-RS resource” refers to a combination of “resourceConfig” and “subframeConfig” which are configured by higher layers. • Working assumption on CSI feedback: • Standardise a common feedback/signalling framework suitable for scenarios 1-4 that can support CoMP JT, DPS and CS/CB. • Feedback scheme to be composed from one or more of the following, including at least one of the first 3 sub-bullets: • feedback aggregated across multiple CSI-RS resources • per-CSI-RS-resource feedback with inter-CSI-RS-resource feedback • per-CSI-RS-resource feedback • per cell Rel-8 CRS-based feedback • Note that use of SRS may be taken into account when reaching further agreements on the above. • Continue discussion/evaluation to RAN1#67 to decide whether to support: • aggregated feedback (if so, which components) • inter-CSI-RS-resource feedback.

  4. 3GPP CoMP WI进展汇报（DL） • Downlink reference signals • Working assumption on DL RS: • Same DMRS sequence generator as in Rel-10 is used. • A UE can be semi-statically configured in a UE-specific manner, which initialization values for DMRS scrambling generator are available for dynamic selection. • Initialization values can be configured to correspond to Rel-10 DMRS. • FFS: Introduction of additional orthogonality for DMRS • Working assumption on CSI-RS: • Allow multiple non-zero-power CSI-RS resources to be configured to a Rel-11 UE by dedicated signalling at least for CSI feedback. • Downlink control signalling • Continue investigation of the signalling requirements of the CoMP framework at RAN1#67.

  5. 3GPP CoMP WI进展汇报（UL） • 上行的议程包括 • 7.5.4.1Standardisation impact of UL CoMP • 7.5.4.2Uplink reference signals • 7.5.4.3Uplink power control • 7.5.4.4Uplink control signalling • 7.5.4.5Uplink timing advance • 7.5.4.6Other • 本次会议仅讨论了UL CoMP的标准影响，结论如下 • Potential areas of standard impact in support of UL COMP includes: • Uplink power control • Uplink DMRS and SRS • Uplink control • Uplink timing • Impact of legacy UE should be taken into account • 此外，还讨论了仿真假设

  6. 3GPP CoMP WI进展汇报（UL） • Agree on a set of common simulation parameters as shown in the table below, for the purpose of evaluation and comparison of proposals relating to the UL COMP standardization aspects • Applicable to both scenarios 3 and 4 • Performance metric used for evaluation • Macro area throughput [ bps/Hz/(1macro+4LPNs) ] • Pico cell throughput [ Mbps/LPN ] • User throughput CDF • Companies are encouraged to also provide these additional information • Macro cell IoT [ dB ] --- mean(Mandatory) and variance (Optional) of effective IoT (36.814) • Linear scale • Pico cell IoT [ dB ] --- mean(Mandatory) and variance(Optional) of effective IoT • Linear scale • Macro UE ratio (%)

  7. 3GPP CoMP WI进展汇报（UL）

  8. CoMP专题讨论组高校文稿讨论

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