# US 12,004,162 B2 · Techniques for modifying a spatial relationship of an uplink channel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,162 B2 - Document ID: US12004162B2 - Status: Granted - Kind: B2 - Application number: 17/547,702 - Filed: 2021-12-10 - Published: 2023-06-15 - Granted: 2024-06-04 - Earliest claimed: 2021-12-10 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Hemant Saggar; Iyab Issam Sakhnini; Tao Luo - Web page: https://patentgrep.com/patent/US12004162B2 ## CPC - H04B 7/06968: {using quasi-colocation [QCL] between signals} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive signaling from a base station that schedules the UE to transmit a second uplink signal using a second spatial relationship following transmission of a first uplink signal using a first spatial relationship. The second uplink signal may be scheduled within a beam switching gap associated with switching from the first spatial relationship to the second spatial relationship. In some examples, the UE may transmit the second uplink signal using the first spatial relationship, rather than switching to using the second spatial relationship. In some examples, the UE may shorten the first uplink signal or the second uplink signal (or both) to accommodate the beam switching gap. ## Claims ### Claim 1 A method for wireless communication at a user equipment (UE), comprising: receiving control signaling indicating a second spatial relation parameter different from a first spatial relation parameter, the second spatial relation parameter to be used for transmission of a second uplink signal after transmission of a first uplink signal using the first spatial relation parameter; transmitting the first uplink signal using the first spatial relation parameter; and transmitting, in response to receiving the control signaling, the second uplink signal using the first spatial relation parameter based at least in part on a size of a switch duration associated with using the second spatial relation parameter after using the first spatial relation parameter. ### Claim 2 (depends on 1) The method of claim 1, further comprising: transmitting, in response to receiving the control signaling, a third uplink signal using the second spatial relation parameter based at least in part on the size of the switch duration, wherein the control signaling further indicates the second spatial relation parameter is to be used for transmission of the third uplink signal. ### Claim 3 (depends on 2) The method of claim 2, wherein: a first size of a first duration between a first allocation associated with the first uplink signal and a second allocation associated with the second uplink signal is less than the size of the switch duration; and a second size of a second duration between the second allocation associated with the second uplink signal and a third allocation associated with the third uplink signal is greater than the size of the switch duration. ### Claim 4 (depends on 1) The method of claim 1, further comprising: transmitting, in response to receiving the control signaling, a third uplink signal using the first spatial relation parameter based at least in part on the size of the switch duration, wherein the control signaling indicates the second spatial relation parameter is to be used for transmission of the third uplink signal. ### Claim 5 (depends on 4) The method of claim 4, wherein: a first size of a first duration between a first allocation associated with the first uplink signal and a second allocation associated with the second uplink signal is less than the size of the switch duration; and a second size of a second duration between the second allocation associated with the second uplink signal and a third allocation associated with the third uplink signal is less than the size of the switch duration. ### Claim 6 (depends on 1) The method of claim 1, further comprising: receiving signaling indicating a cancellation of a third uplink signal based at least in part on based at least in part on the size of the switch duration. ### Claim 7 (depends on 1) The method of claim 1, further comprising: discarding the indication of the second spatial parameter based at least in part on an expiration of a timer associated with the control signaling. ### Claim 8 (depends on 1) The method of claim 1, wherein the control signaling comprises a serving cell identifier, a bandwidth part identifier, a resource identifier associated with the second uplink signal, one or more bits indicating the second spatial parameter, one or more reserved bits, or any combination thereof. ### Claim 9 A method for wireless communication at a user equipment (UE), comprising: receiving control signaling indicating a second spatial relation parameter different from a first spatial relation parameter, the second spatial relation parameter to be used for transmission of a second uplink signal after transmission of a first uplink signal using the first spatial relation parameter; transmitting a first portion of the first uplink signal using the first spatial relation parameter based at least in part on a size of a switch duration associated with using the second spatial relation parameter after using the first spatial relation parameter; and transmitting, in response to receiving the control signaling, a second portion of the second uplink signal using the second spatial relation parameter based at least in part on the size of the switch duration. ### Claim 10 (depends on 9) The method of claim 9, further comprising: discarding a third portion of the first uplink signal based at least in part on the size of the switch duration, wherein the first uplink signal comprises the first portion and the third portion. ### Claim 11 (depends on 9) The method of claim 9, further comprising: discarding a third portion of the second uplink signal based at least in part on the size of the switch duration, wherein the second uplink signal comprises the second portion and the third portion. ### Claim 12 (depends on 9) The method of claim 9, further comprising: receiving signaling indicating a third portion to be discarded based at least in part on the size of the switch duration, wherein the first uplink signal or the second uplink signal comprises the third portion. ### Claim 13 (depends on 12) The method of claim 12, further comprising: transmitting signaling indicating a switching capability of the UE, wherein the signaling indicating the third portion is received in response to the signaling indicating the switching capability. ### Claim 14 (depends on 12) The method of claim 12, wherein the first portion of the first uplink signal and the second portion of the second uplink signal are transmitted in response to receiving the signaling indicating the third portion. ### Claim 15 (depends on 12) The method of claim 12, wherein the third portion comprises a symbol or a portion of a symbol. ### Claim 16 (depends on 9) The method of claim 9, wherein the control signaling comprises a serving cell identifier, a bandwidth part identifier, a resource identifier associated with the second uplink signal, one or more bits indicating the second spatial parameter, one or more reserved bits, or any combination thereof. ### Claim 17 A method for wireless communication at a base station, comprising: transmitting, to a user equipment (UE), control signaling indicating a second spatial relation parameter different from a first spatial relation parameter, the second spatial relation parameter to be used for transmission of a second uplink signal after transmission of a first uplink signal using the first spatial relation parameter; receiving the first uplink signal in accordance with the first spatial relation parameter; and receiving, in response to transmitting the control signaling, the second uplink signal in accordance with the first spatial relation parameter based at least in part on a size of a switch duration associated with using the second spatial relation parameter after using the first spatial relation parameter. ### Claim 18 (depends on 17) The method of claim 17, further comprising: receiving, in response to transmitting the control signaling, a third uplink signal in accordance with the second spatial relation parameter based at least in part on the size of the switch duration, wherein the control signaling further indicates the second spatial relation parameter is to be used for transmission of the third uplink signal. ### Claim 19 (depends on 18) The method of claim 18, wherein: a first size of a first duration between a first allocation associated with the first uplink signal and a second allocation associated with the second uplink signal is less than the size of the switch duration; and a second size of a second duration between the second allocation associated with the second uplink signal and a third allocation associated with the third uplink signal is greater than the size of the switch duration. ### Claim 20 (depends on 17) The method of claim 17, further comprising: receiving, in response to transmitting the control signaling, a third uplink signal in accordance with the first spatial relation parameter based at least in part on the size of the switch duration, wherein the control signaling indicates the second spatial relation parameter is to be used for transmission of the third uplink signal. ### Claim 21 (depends on 20) The method of claim 20, wherein: a first size of a first duration between a first allocation associated with the first uplink signal and a second allocation associated with the second uplink signal is less than the size of the switch duration; and a second size of a second duration between the second allocation associated with the second uplink signal and a third allocation associated with the third uplink signal is less than the size of the switch duration. ### Claim 22 (depends on 17) The method of claim 17, further comprising: receiving signaling indicating a cancellation of a third uplink signal based at least in part on based at least in part on the size of the switch duration. ### Claim 23 (depends on 17) The method of claim 17, wherein the control signaling comprises a serving cell identifier, a bandwidth part identifier, a resource identifier associated with the second uplink signal, one or more bits indicating the second spatial parameter, one or more reserved bits, or any combination thereof. ### Claim 24 A method for wireless communication at a base station, comprising: transmitting, to a user equipment (UE), control signaling indicating a second spatial relation parameter different from a first spatial relation parameter, the second spatial relation parameter to be used for transmission of a second uplink signal after transmission of a first uplink signal using the first spatial relation parameter; receiving a first portion of the first uplink signal in accordance with the first spatial relation parameter based at least in part on a size of a switch duration associated with using the second spatial relation parameter after using the first spatial relation parameter; and receiving, in response to transmitting the control signaling, a second portion of the second uplink signal in accordance with the second spatial relation parameter. ### Claim 25 (depends on 24) The method of claim 24, further comprising: refraining from monitoring for a third portion of the first uplink signal based at least in part on the size of the switch duration, wherein the first uplink signal comprises the first portion and the third portion. ### Claim 26 (depends on 24) The method of claim 24, further comprising: refraining from monitoring for a third portion of the second uplink signal based at least in part on the size of the switch duration, wherein the second uplink signal comprises the second portion and the third portion. ### Claim 27 (depends on 24) The method of claim 24, further comprising: transmitting signaling indicating a third portion to be discarded based at least in part on the size of the switch duration, wherein the first uplink signal or the second uplink signal comprises the third portion. ### Claim 28 (depends on 27) The method of claim 27, further comprising: receiving signaling indicating a switching capability of the UE, wherein the signaling indicating the third portion is transmitted in response to the signaling indicating the switching capability. ### Claim 29 (depends on 27) The method of claim 27, wherein the first portion of the first uplink signal and the second portion of the second uplink signal are received in response to receiving the signaling indicating the third portion. ### Claim 30 (depends on 27) The method of claim 27, wherein the third portion comprises a symbol or a portion of a symbol.