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US 12,113,733 B2Granted
Processing relaxation for aperiodic CSI-RS
AssigneeQUALCOMM Incorporated
InventorsWanshi Chen, Chao Wei, Peter Gaal
Life of this patent
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Abstract
Processing relaxation for aperiodic channel state information (CSI) reference signal (CSI-RS) is discussed for networks that include full dimension multiple input, multiple output (FD-MIMO) operations. A user equipment (UE) operating in such a system monitors for the presence of aperiodic CSI-RS. When such aperiodic CSI-RS are detected, the UE may provide process relaxation in CSI reporting by transmitting aperiodic CSI reporting according to an uplink shared channel limitation, or by relaxing the processing of the aperiodic CSI reporting transmitted by the UE, or a combination of both.
Claims27
A method of wireless communication, comprising:
- monitoring, by a user equipment (UE), for aperiodic channel state information (CSI) reference signals (CSI-RS);
- and
- executing an algorithm that provides for performing, by the UE, at least one report processing for providing at least one CSI report in response to detecting presence of a number of instances of the aperiodic CSI-RS from a base station (BS) that is directed to the UE during the monitoring for the aperiodic CSI-RS;
- wherein:
- each of the report processing is a generation of a respective one of the at least one CSI report, a performance of a respective measurement for generation of the at least one CSI report, or a transmission to the BS of the at least one CSI report;
- and
- a total number of instances of the at least one report processing that is performed in response to the detecting of the presence of the number of instances of the aperiodic CSI-RS is less than the number of instances of the aperiodic CSI-RS due to a rate that is predefined for the performing of the report processing,
- the method further comprising:
- determining an uplink shared channel limitation associated with reporting of the at least one CSI report on an uplink shared channel, wherein the uplink shared channel limitation is determined based on a predetermined threshold uplink timing advance.
6 more elements
An apparatus configured for wireless communication, comprising:
- means for monitoring, by a user equipment (UE), for aperiodic channel state information (CSI) reference signals (CSI-RS);
- and
- means for executing an algorithm that provides for the UE to perform at least one report processing for providing at least one CSI report in response to detecting presence of a number of instances of the aperiodic CSI-RS from a base station (BS) that is directed to the UE during the monitoring for the aperiodic CSI-RS;
- wherein:
- each of the report processing is a generation of a respective one of the at least one CSI report, a performance of a respective measurement for generation of the at least one CSI report, or a transmission to the BS of the at least one CSI report;
- and
- a total number of instances of the at least one report processing that is performed in response to the detecting of the presence of the number of instances of the aperiodic CSI-RS is less than the number of instances of the aperiodic CSI-RS due to a rate that is predefined for the performing of the report processing,
- the apparatus further comprising:
- means for determining an uplink shared channel limitation associated with reporting of the at least one CSI report on an uplink shared channel, wherein the uplink shared channel limitation is determined based on a predetermined threshold uplink timing advance.
6 more elements
An apparatus configured for wireless communication, the apparatus comprising:
- at least one processor of a user equipment (UE);
- and
- a memory coupled to the at least one processor,
- wherein:
- the at least one processor is configured to:
- monitor for aperiodic channel state information (CSI) reference signals (CSI-RS);
- and
- execute an algorithm that provides for performing, by the UE, at least one report processing for providing at least one CSI report in response to detecting presence of a number of instances of the aperiodic CSI-RS from a base station (BS) that is directed to the UE during the monitoring for the aperiodic CSI-RS;
- each of the report processing is a generation of a respective one of the at least one CSI report, a performance of a respective measurement for generation of the at least one CSI report, or a transmission to the BS of the at least one CSI report;
- and
- a total number of instances of the at least one report processing that is performed in response to the detecting of the presence of the number of instances of the aperiodic CSI-RS is less than the number of instances of the aperiodic CSI-RS due to a rate that is predefined for the performing of the report processing,
- the at least one processor further configured to:
- determine an uplink shared channel limitation associated with reporting of the at least one CSI report on an uplink shared channel, wherein the uplink shared channel limitation is determined based on a predetermined threshold uplink timing advance.
10 more elements
Dependencies are inferred from the claim text.