US2023231673A1PendingUtilityA1

Unified ul and dl beam indication

66
Assignee: ERICSSON TELEFON AB L MPriority: Sep 11, 2017Filed: Mar 22, 2023Published: Jul 20, 2023
Est. expirySep 11, 2037(~11.1 yrs left)· nominal 20-yr term from priority
Inventors:Stephen GrantSebastian FaxérMattias FrenneAndreas NilssonRavikiran NoryNiklas Wernersson
H04L 5/0048H04L 5/0044H04W 72/23H04B 7/0617H04B 7/0697H04L 5/0023H04L 5/0091
66
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Claims

Abstract

A user equipment (UE) the UE being configured to receive a message comprising configuration information, CI, indicating that a reference signal, RS, is quasi-co-located, QCL, with a transmission; and adjust a spatial Tx configuration for the transmission based on an RS associated with the received CI.

Claims

exact text as granted — not AI-modified
1 . A user equipment (UE), the UE being configured to:
 receive a message comprising configuration information (CI) indicating that a reference signal (RS) is quasi-co-located (QCL) with a transmission; and   adjust a spatial Tx configuration for the transmission based on an RS associated with the received CI.   
     
     
         2 . The UE of  claim 1 , wherein the message is a layer 2 message comprising the CI. 
     
     
         3 . The UE of  claim 1 , wherein the message is a MAC-CE comprising the CI. 
     
     
         4 . The UE of  claim 1 , wherein the message is a Radio Resource Control (RRC) message comprising the CI. 
     
     
         5 . The UE of  claim 1 , wherein the message is a Downlink Control Information (DCI) message comprising the CI. 
     
     
         6 . The UE of  claim 5 , wherein the DCI message comprises the CI and one of: an UL grant scheduling a PUSCH and a DL grant scheduling a PDSCH. 
     
     
         7 . The UE of  claim 1 , wherein the RS associated with the received CI is the RS indicated by the received CI. 
     
     
         8 . The UE of  claim 1 , wherein the RS associated with the received CI is one of a DL RS and an UL RS. 
     
     
         9 . The UE of  claim 1 , wherein
 one or more RS sets are associated with the CI, and   the RS associated with the CI is in at least one of the RS sets associated with the CI.   
     
     
         10 . The UE of  claim 9 , wherein 
 the CI comprises a Transmission Configuration Indicator (TCI) and   the RS set(s) are associated with the TCI.   
     
     
         11 . The UE of  claim 1 , wherein the UE is configured to adjust the spatial Tx configuration such that the spatial configuration is reciprocal to a spatial configuration associated with the RS that is associated with the received CI. 
     
     
         12 . The UE of  claim 11 , wherein
 the RS associated with the received CI is a DL RS, and   the UE is configured to adjust the spatial Tx configuration such that it is reciprocal to a spatial Rx configuration associated with the DL RS.   
     
     
         13 . The UE of  claim 11 , wherein 
 the RS associated with the received CI is an UL RS included in an RS set associated with the CI, and   the UE is configured to adjust the spatial Tx configuration such that it is reciprocal to a second spatial Tx configuration associated with the UL RS.   
     
     
         14 . The UE of  claim 1 , wherein the transmission is a PUSCH, PUCCH, or SRS transmission. 
     
     
         15 . The UE of  claim 7 , wherein
 the received CI is associated with i) a first RS set containing a first RS and ii) a second RS set containing a second RS,   the UE adjusts a first spatial Tx configuration based on the first RS,   the UE adjusts a second spatial Tx configuration based on the second RS,   the UE uses the first spatial Tx configuration for transmission of PUCCH, and   the UE uses the second spatial Tx configuration for transmission of PUSCH.   
     
     
         16 . A user equipment, UE, the UE being operable to:
 receive configuration information (CI) indicating that a reference signal (RS) is quasi-co-located (QCL) with a transmission; and   adjust a spatial receive, Rx, configuration based on an RS associated with the received CI, wherein   one or more RS sets are associated with the CI, and   the RS associated with the CI is included in at least one of the RS sets associated with the CI.   
     
     
         17 . The UE of  claim 16 , wherein receiving the CI comprises receiving Down Link Control Information (DCI) comprising the CI and the received DCI further comprises a DL grant scheduling a PDSCH. 
     
     
         18 . The UE of  claim 16 , wherein 
 receiving the CI comprises receiving one of: a scheduling message comprising the CI, a layer-2 message comprising the CI, a random access response message comprising the CI, Down Link Control Information (DCI) comprising the CI, a MAC-CE comprising the CI, and an RRC message comprising the CI.   
     
     
         19 . The UE of  claim 16 , wherein 
 the CI comprises a Transmission Configuration Indicator, TCI, and   the RS sets are associated with the TCI.   
     
     
         20 . The UE of  claim 16 , wherein
 the RS associated with the CI is an UL RS included in an RS set associated with the CI, and   the UE is configured to adjust the spatial Rx configuration such that the spatial Rx configuration is reciprocal to a spatial Tx configuration associated with the UL RS.   
     
     
         21 . The UE of  claim 16 , wherein the UE is configured to use the adjusted spatial Rx configuration to receive one or more of: PDCCH, PDSCH, SSB, TRS, PTRS, and CSI-RS. 
     
     
         22 . The UE of  claim 16 , wherein the transmission is a PDSCH or PDCCH transmission. 
     
     
         23 . A method performed by a user equipment, UE, the method comprising:
 receiving a message comprising configuration information (CI) indicating that a reference signal (RS) is quasi-co-located (QCL) with a transmission; and   adjusting a spatial Tx configuration for the transmission based on an RS associated with the received CI.   
     
     
         24 . A method performed by a user equipment, UE, the method comprising:
 receiving configuration information (CI) indicating that a reference signal (RS) is quasi-co-located (QCL) with a transmission; and   adjusting a spatial receive, Rx, configuration based on an RS associated with the received CI, wherein   one or more RS sets are associated with the CI, and   the RS associated with the CI is included in at least one of the RS sets associated with the CI.   
     
     
         25 . A computer program product comprising a non-transitory computer readable medium storing a computer program comprising instructions which, when executed on at least one processor, cause the at least one processor to carry out the method of  claim 23 . 
     
     
         26 . A computer program product comprising a non-transitory computer readable medium storing a computer program comprising instructions which, when executed on at least one processor, cause the at least one processor to carry out the method of  claim 24 .

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