Transmission method and apparatus for non-periodic sounding reference signal(SRS)
View Patent ↗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.
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.
2. The method as claimed in claim 1 , wherein the non-periodic SRS configuration parameter comprises:
configuration information of time-domain resource configuration periodicity of non-periodic SRS; and/or
subframe configuration information of non-periodic SRS.
3. The method as claimed in claim 2 , wherein the configuration information of time-domain resource configuration periodicity of the non-periodic SRS is as follows:
configuration information indicating the preset time-domain resource configuration periodicity applied by terminal equipment; or
configuration information indicating the time-domain resource configuration periodicity value applied by terminal equipment; or
configuration information associated with that of subframe.
4. The method as claimed in claim 2 , wherein, the subframe configuration information of the non-periodic SRS is as follows:
starting information and continuous length information of subframe resource applied by the terminal equipment; or
information indicating whether one or several subframes are used by the terminal equipment for non-periodic SRS transmission; or
configuration information associated with that of time-domain resource configuration periodicity.
5. A terminal equipment, comprising:
a reception module, configured to receive time-domain configuration parameter of non-periodic SRS sent by eNB through higher layer signalling or PDCCH signalling;
a sending module, configured to select corresponding time-domain resource to send non-periodic SRS to the eNB in accordance with the time-domain configuration parameter of non-periodic SRS received by the reception module after the reception module receives the non-periodic SRS activation signalling sent by the eNB; wherein
after the reception module receives the non-periodic SRS activation signalling sent by the eNB, the sending module sends 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
after the reception module receives the non-periodic SRS activation signalling sent by the eNB, the sending module determines 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.
6. The terminal equipment as claimed in claim 5 , wherein non-periodic SRS configuration parameter received by the reception module comprises configuration information of time-domain resource configuration periodicity and/or subframe configuration information of non-periodic SRS:
wherein the configuration information of time-domain resource configuration periodicity of the non-periodic SRS is specifically as follows:
configuration information indicating the preset time-domain resource configuration periodicity applied by terminal equipment; or
configuration information indicating the time-domain resource configuration periodicity value applied by terminal equipment; or
configuration information associated with that of subframe;
the subframe configuration information of the non-periodic SRS is specifically as follows:
starting information and continuous length information of subframe resource applied by the terminal equipment; or
information indicating whether one or several subframes are used by the terminal equipment for non-periodic SRS transmission; or
configuration information associated with that of time-domain resource configuration periodicity.
7. A transmission method for non-periodic SRS, comprising:
an eNB sending time-domain configuration parameter of non-periodic SRS to terminal equipment through higher layer signalling or PDCCH signalling;
when the eNB sending non-periodic SRS activation signalling to the terminal equipment, the eNB receiving the non-periodic SRS sent by time-domain resource selected by the terminal equipment in accordance with the time-domain configuration parameter of the non-periodic SRS; wherein
after sending non-periodic SRS activation signalling to the terminal equipment, the eNB receiving non-periodic SRS sent directly on all configuration subframes within a time-domain resource configuration periodicity after several subframes by the terminal equipment in accordance with the configuration parameter of non-periodic SRS; or
after sending non-periodic SRS activation signalling to the terminal equipment, the eNB receiving non-periodic SRS sent on all configuration subframes within a time-domain resource configuration periodicity after several subframes by terminal equipment in accordance with the duration configuration information of non-periodic SRS carried in higher layer signalling or PDCCH signalling.
8. The method as claimed in claim 7 , wherein the non-periodic SRS configuration parameter comprises:
configuration information of time-domain resource configuration periodicity of non-periodic SRS; and/or
subframe configuration information of non-periodic SRS.
9. The method as claimed in claim 8 , wherein the configuration information of time-domain resource configuration periodicity for the non-periodic SRS is as follows:
configuration information indicating the preset time-domain resource configuration periodicity applied by terminal equipment; or
configuration information indicating the time-domain resource configuration periodicity value applied by terminal equipment; or
configuration information associated with that of subframe.
10. The method as claimed in claim 8 , wherein the subframe configuration information of the non-periodic SRS is as follows:
starting information and continuous length information of subframe resource applied by the terminal equipment; or
information indicating whether one or several subframes are used by the terminal equipment for non-periodic SRS transmission; or
configuration information associated with that of time-domain resource configuration periodicity.