Transmission method and apparatus for non-periodic sounding reference signal(SRS)

摘要

The present invention discloses a transmission method and apparatus for non-periodic SRS. eNB configures time-domain configuration parameter of non-periodic SRS through higher layer signalling or downlink physical control channel signalling; terminal equipment transmits non-periodic SRS in indicated time-domain resource. The application of the technical solution of the embodiments of the present invention can reduce signalling consumption through high layer semi-static configuration of time-domain resource of non-periodic SRS. On one hand, flexible non-periodic SRS time-domain transmission is allowed for terminal equipment which can send non-periodic SRS in multiple subframes, which is featured by low sounding delay and great sounding bandwidth; on the other hand, flexible timing mode is also permitted for terminal equipment which brings little restriction to scheduling.

主权项

1. A transmission method for non-periodic Sounding Reference Symbol (SRS), comprising:
a terminal equipment receiving time-domain configuration parameter of non-periodic SRS sent by eNB through higher layer signalling or Physical Downlink Control Channel (PDCCH) signalling; after receiving the non-periodic SRS activation signalling sent by the eNB, the terminal equipment selecting corresponding time-domain resource to send non-periodic SRS to the eNB in accordance with the time-domain configuration parameter of the non-periodic SRS, wherein sending non-periodic SRS directly on all configuration subframes within a time-domain resource configuration periodicity after several subframes in accordance with the configuration parameter of non-periodic SRS, or determining to send non-periodic SRS on all configuration subframes within a time-domain resource configuration periodicity after several subframes in accordance with the duration configuration information of non-periodic SRS carried in higher layer signalling or PDCCH signalling.