Wireless communication interference mitigation

摘要

Described herein are implementations related to communication in a wireless communication system. In one implementation, serving signals from serving base stations and interfering signals from neighbor base stations are split into multiple substreams. A power allocation algorithm is used to calculate the power amplitude factor of the substreams communicated from the serving based stations coupled to corresponding wireless devices. A control signaling related to this implementation is described.

主权项

1. An enhanced Node B (eNB) comprising:
processing circuitry to: determine a power allocation for downlink transmissions to a first user equipment (UE) being served by a first cell and for downlink transmissions to a second UE being served by a second cell, the power allocation determined based on channel quality information for a first channel associated with the first UE and channel quality information for a second channel associated with the second UE; and determine power amplitude factors for the downlink transmissions to the first UE and the second UE, the power amplitude factors based on the power allocation and provided as part of downlink control signaling, a first of the power amplitude factors configured for use by the first UE to process downlink signals received from the first cell, a second of the power amplitude factors configured for use by the second UE to process downlink signals received from the second cell; and configure first orthogonal frequency division multiple access (OFDMA) signals for transmission by first transceiver circuitry, the first transceiver circuitry configure to transmit the first OFDMA signals in the first cell to the first UE in accordance with the first power amplitude factor, the first power amplitude factor being applied at least to data subcarriers of the OFDMA signals; and configure second OFDMA signals in the second cell for transmission by second transceiver circuitry to the second UE in accordance with the second power amplitude factor, wherein the first and second OFDMA signals comprise downlink signals that are concurrently transmitted, respectively, in the first and second cells, wherein the power amplitude factors are determined to allow the first UE to cancel interference due to transmission of the second OFDMA signals in the second cell and to allow the second UE to cancel interference due to transmission of the first OFDMA signals in the first cell, and wherein the first and second cells employ frequency-reuse.