首页>
外国专利>
PHASE SYNCHRONIZATION FOR RECIPROCITY-BASED CoMP JOINT TRANSMISSION WITH UE FEEDBACK OF BOTH CO-PHASING AND SLOPE
PHASE SYNCHRONIZATION FOR RECIPROCITY-BASED CoMP JOINT TRANSMISSION WITH UE FEEDBACK OF BOTH CO-PHASING AND SLOPE
展开▼
机译:UE共反馈和边坡反馈的基于可靠性的CoMP联合传输的相位同步
展开▼
页面导航
摘要
著录项
相似文献
摘要
Over-the-air phase synchronization for reciprocity-based coordinated multipoint (CoMP) joint transmission is discussed. The base stations of the CoMP group and served user equipment (UEs) transmit phase synchronization reference signals (PSRS). The receiving nodes compute wideband co-phasing values representing the phase difference between pairs of the PSRS over each tone of a whole spectrum band, and slope values based on the per-tone co-phasing values. The UEs feedback the wideband downlink co-phasing value and the downlink slope value. The base stations of the CoMP group determine a phase compensation based on the differences between the slope value calculated by the base station and the slope value reported by the UE, and based on the differences between the wideband co-phasing value calculated by the base station and the wideband co-phasing value reported by the UE. The base station uses the phase compensation to adjust communications by the base stations in the CoMP group.
展开▼