Techniques for quantization adaptation in cooperative signal communication

摘要

In cooperative signal communication between a mobile terminal (200) and a plurality of access nodes (100-1, 100-2, 100-3), cooperation signals (20), e.g. received signals or signals to be transmitted, are communicated with the access nodes (100-1, 100-2, 100-3). The cooperation signals (20) are quantized according to a quantization parameter, e.g. quantization depth and/or quantization type, which is adapted on the basis of a cooperative communication parameter. The cooperative communication parameter is a characteristic of the cooperative communication process, e.g. modulation scheme.

主权项

1. A method of cooperative signal communication for communication between a mobile terminal and a plurality of base stations, comprising:
determining, by a base station, a cooperative communication parameter for cooperative communication of a signal on at least a first communication path between a first base station and a mobile terminal, and a second communication path between a second base station and the mobile terminal; setting, by the base station on the basis of said cooperative communication parameter, a quantization parameter; and sending, from the base station, a cooperation signal to at least one of the first base station and the second base station, the cooperation signal carrying information for said cooperative communication of the signal, the information including the quantization parameter; wherein the quantization parameter comprises a quantization depth or a quantization type to be used for quantization of the signal.