Transmission of sounding reference signals in TDD communication systems

摘要

A method and apparatus for transmitting and receiving a Sounding Reference Signal (SRS) to a network in a communication system. A bandwidth allocated by the network to transmissions of one or more random access channels is determined. An SRS bandwidth configuration is reconfigured by setting a maximum bandwidth value of the SRS bandwidth configuration to a value that avoids overlapping the bandwidth allocated to transmissions of the one or more random access channels. The SRS is transmitted in accordance with a bandwidth from the reconfigured SRS bandwidth configuration. Information regarding the SRS bandwidth configuration is provided to a User Equipment (UE) by the network.

主权项

1. A method for a User Equipment (UE) to transmit a Sounding Reference Signal (SRS) to a network in a communication system, the method comprising steps of:
identifying a plurality of SRS bandwidth configurations for a given operating bandwidth, wherein each SRS bandwidth configuration comprises a plurality of SRS bandwidths; receiving a cell-specific parameter and a UE-specific parameter, wherein the cell-specific parameter is indicative of an SRS bandwidth configuration of the plurality of SRS bandwidth configurations, and the UE-specific parameter is indicative of an SRS bandwidth of the plurality of SRS bandwidths, where a pair of the cell-specific parameter and the UE-specific parameter corresponds to a SRS bandwidth; reconfiguring the SRS bandwidth to a maximum SRS bandwidth that is less than or equal to a value determined by a function of a number of random access channels and a constant in case of Uplink ParT symbol (UpPTS), wherein the maximum SRS bandwidth is associated with one of the plurality of SRS bandwidth configurations; and transmitting the SRS based on the reconfigured SRS bandwidth, wherein the maximum SRS bandwidth is one of a plurality of SRS bandwidths, and the plurality of SRS bandwidths correspond to a UE-specific parameter having a lowest index.