RADIO COMMUNICATION STATION AND RADIO COMMUNICATION DEVICE, AND METHODS OF OPERATING SAME

摘要

A radio communication station in a radio communication system having a plurality of radio communication devices, derives a quantization parameter from control indications received from respective radio communication devices and transmits the quantization parameter to the radio communication devices on at least one downlink channel. The radio communication devices receive the quantization parameter, determine respective channel state metrics for the downlink channel, respectively quantize the determined respective channel state metrics by applying quantization ranges indicated by the quantization parameter, determine respective control indications indicative of the respective quantized channel state metrics, and transmit to the radio communication station respective signals indicating the determined respective control indications as respective random access transmissions on an uplink channel.

主权项

1. A method of operating a radio communication station in a radio communication system having a plurality of radio communication devices, the method comprising:
receiving respective control indications in signals on a random access channel from the plurality of radio communication devices; deriving a characteristic of the radio communication system from the received respective control indications; deriving a quantization parameter depending on the characteristic; and transmitting the quantization parameter to the plurality of radio communication devices for use in subsequent respective quantizations of respective channel state metrics.