Patent ID: 9220087
Filing Date: 2015-12-22
Classification: H04B,H04W

Abstract:
1. A method for providing channel feedback within a system comprising (i) a mobile communication terminal and (ii) three or more cells, the method comprising: receiving, in the mobile communication terminal, signals from multiple cells of the three or more cells that coordinate transmission of the signals with one another in a Dynamic Point Selection (DPS) Cooperative Multipoint (CoMP) scheme, wherein, in accordance with the DPS CoMP scheme, a single cell of the multiple cells is selected to transmit to the mobile communication terminal in a given time-frequency resource; calculating in the terminal, based on the received signals, (i) a respective channel feedback for each of the multiple cells, and (ii) a single rich channel feedback, wherein the single rich channel feedback comprises, per spectral sub-band, only a single-bit indication that identifies the single cell selected to transmit to the mobile communication terminal, and wherein the single-bit indication is sufficient to identify the multiple cells of the three or more cells that cooperate in the DPS CoMP scheme; and transmitting the channel feedback for the multiple cells on a periodic uplink control channel, and transmitting the single rich channel feedback on an a-periodic uplink channel.