MULTI-CELL SIGNALS IN OFDM WIRELESS NETWORKS

摘要

A wireless device receives messages indicating CSI measurement resources of cells belonging to at least two base stations or belonging to at least two sectors of a base station. The wireless device measures CSI employing at least CSI measurement resources of the cells. The wireless device quantizes the measured CSI jointly across cells and encodes and transmits the jointly quantized CSI. The wireless device receives a resource assignment for data packet(s). The wireless device receives signals carrying the data packets from multiple cells.

主权项

1. A wireless device comprising:
a) one or more communication interfaces; b) one or more processors; and c) memory storing instructions that, when executed, cause said wireless device to:
i) receive from a first base station at least one message indicating channel state information (CSI) measurement resources of a subset of cells, cells in said subset of cells belonging to at least two base stations comprising said first base station or belonging to at least two sectors of said first base station;ii) measure CSI employing at least said CSI measurement resources;iii) quantize said measured CSI jointly across cells in said subset of cells;iv) encode and transmit said jointly quantized CSI;v) receive at least one resource assignment for at least one packet; andvi) receive signals simultaneously from multiple cells in said subset of cells, said signals carrying said at least one packet for said wireless device, said multiple cells belonging to said at least two base stations or belonging to at least two sectors of said first base station.