# US 2025/0097902 A1 · Techniques for user equipment sub-band full-duplex operation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0097902 A1 - Document ID: US20250097902A1 - Status: Published application - Kind: A1 - Application number: 18/471,243 - Filed: 2023-09-20 - Published: 2025-03-20 - Earliest claimed: 2023-09-20 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Qian ZHANG; Yan ZHOU - Web page: https://patentgrep.com/patent/US20250097902A1 ## CPC - H04W 72/02: Selection of wireless resources by user or terminal - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04L 5/16: Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a control message indicating configuration information associated with one or more sub-band full-duplex (SBFD) symbols or slots, wherein the configuration information indicates both uplink resources and downlink resources within at least one SBFD symbol or slot of the one or more SBFD symbols or slots. In some cases, the UE may select both the uplink resources and the downlink resources for the at least one SBFD symbol slot of the one or more SBFD symbols or slots based on a capability of the UE. Additionally, the UE may communicate via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots based on the selection. ## Claims ### Claim 1 A user equipment (UE), comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to: receive a control message indicating configuration information associated with one or more sub-band full-duplex (SBFD) symbols or slots, wherein the configuration information indicates both uplink resources and downlink resources within at least one SBFD symbol or slot of the one or more SBFD symbols or slots; select both the uplink resources and the downlink resources for the at least one SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on a capability of the UE; and communicating via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on the selection. ### Claim 2 (depends on 1) The UE of claim 1, wherein the configuration information further indicates either uplink resources or downlink resources within a second SBFD symbol or slot of the one or more SBFD symbols or slots, and the one or more processors are individually or collectively further operable to execute the code to cause the UE to: select either the uplink resources or the downlink resources for the second SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on the second SBFD symbol or slot supporting half-duplex communications by the UE; and communicating via either the uplink resources or the downlink resources during the second SBFD symbol or slot based at least in part on the selection. ### Claim 3 (depends on 2) The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: receive one or more second control messages indicating a configuration of each of the one or more SBFD symbols or slots, wherein the one or more second control messages indicate the at least one SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by the UE and the second SBFD symbol or slot of the one or more SBFD symbols or slots is configured for half-duplex communications by the UE. ### Claim 4 (depends on 3) The UE of claim 3, wherein the one or more second control messages indicate one or more durations associated with the configuration the one or more SBFD symbols or slots. ### Claim 5 (depends on 3) The UE of claim 3, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: receive one or more third control messages indicating whether each of the one or more SBFD symbols or slots supports SBFD communications by the UE or supports half-duplex communications by the UE. ### Claim 6 (depends on 3) The UE of claim 3, wherein the one or more second control messages comprise one or more indices indicating the configuration of the one or more SBFD symbols or slots, and wherein the one or more indices are per-SBFD symbol, per-SBFD slot, or both. ### Claim 7 (depends on 6) The UE of claim 6, wherein a first index of the one or more indices indicates an SBFD symbol or slot of the one or more symbols or SBFD slots is configured for half-duplex communications by a network entity and by the UE, a second index of the one or more indices indicates the SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by the network entity and half-duplex communications by the UE, a third index of the one or more indices indicates the SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by the network entity and by the UE, and a fourth index of the one or more indices indicates the SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by the UE and half-duplex communications by the network entity. ### Claim 8 (depends on 3) The UE of claim 3, wherein the one or more second control messages indicate a pattern identification associated with the configuration of the one or more SBFD symbols or slots. ### Claim 9 (depends on 8) The UE of claim 8, wherein the pattern identification indicates a first subset of the one or more SBFD symbols or slots are configured for SBFD communications by the UE, a second subset of the one or more SBFD symbols or slots are configured for half-duplex communications by the UE, and one or more additional symbols or slots are configured for uplink, for downlink, are flexible, or any combination thereof. ### Claim 10 (depends on 3) The UE of claim 3, wherein the one or more second control messages comprise a radio resource control (RRC) message, a medium access control (MAC) control element (MAC-CE) message, a downlink control information (DCI) message, or any combination thereof, and wherein the DCI message may be a scheduling DCI message, a non-scheduling DCI message, a group common DCI message, or any combination thereof. ### Claim 11 (depends on 2) The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: receive a second control message indicating a first set of parameters associated with SBFD communications by the UE and a second set of parameters associated with half-duplex communications by the UE, wherein communicating via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots is based at least in part on the first set of parameters, and wherein communicating via either the uplink resources or the downlink resources during the second SBFD symbol or slot of the one or more SBFD symbols or slots is based at least in part on the second set of parameters. ### Claim 12 (depends on 1) The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: transmit a capability message indicating the capability of the UE to support SBFD communications, partial overlapping full-duplex communications, fully overlapping full-duplex communications, or any combination thereof, from a perspective of the UE, wherein selecting both the uplink resources and the downlink resources is based at least in part on the capability of the UE to support SBFD communications, partially overlapping full-duplex communications, fully overlapping full-duplex communications, or any combination thereof. ### Claim 13 (depends on 1) The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: transmit a capability message indicating the capability of the UE to support half duplex communications from a perspective of the UE and SBFD communications from a perspective of a network entity. ### Claim 14 (depends on 1) The UE of claim 1, wherein, to communicating via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots, the one or more processors are individually or collectively operable to execute the code to cause the UE to: transmit uplink signaling via a first antenna panel at the UE and via the uplink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots; and receive downlink signaling via a second antenna panel at the UE and via the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots. ### Claim 15 A network entity, comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to: transmit a control message indicating configuration information associated with one or more sub-band full-duplex (SBFD) symbols or slots, wherein the configuration information indicates both uplink resources and downlink resources within at least one SBFD symbol or slot of the one or more SBFD symbols or slots; and communicating, with a single user equipment (UE), via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on a capability of the UE. ### Claim 16 (depends on 15) The network entity of claim 15, wherein the configuration information further indicates either uplink resources or downlink resources within a second SBFD symbol or slot of the one or more SBFD symbols or slots, and the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: communicating via either the uplink resources or the downlink resources during the second SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on the second SBFD symbol or slot supporting half-duplex communications by the UE. ### Claim 17 (depends on 16) The network entity of claim 16, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: transmit one or more second control messages indicating a configuration of each of the one or more SBFD symbols or slots, wherein the one or more second control messages indicate the at least one SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by the UE and the second SBFD symbol or slot of the one or more SBFD symbols or slots is configured for half-duplex communications by the UE. ### Claim 18 (depends on 17) The network entity of claim 17, wherein the one or more second control messages indicate one or more durations associated with the configuration the one or more SBFD symbols or slots. ### Claim 19 (depends on 18) The network entity of claim 18, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: transmit one or more third control messages indicating whether each of the one or more SBFD symbols or slots supports SBFD communications by the UE or supports half-duplex communications by the UE. ### Claim 20 (depends on 17) The network entity of claim 17, wherein the one or more second control messages comprise one or more indices indicating the configuration of the one or more SBFD symbols or slots, and wherein the one or more indices are per-SBFD symbol, per-SBFD slot, or both. ### Claim 21 (depends on 20) The network entity of claim 20, wherein a first index of the one or more indices indicates an SBFD symbol or slot of the one or more SBFD symbols or slots is configured for half-duplex communications by both a network entity and by the UE, a second index of the one or more indices indicates the SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by the network entity and half-duplex communications by the UE, a third index of the one or more indices indicates the SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by both the network entity and by the UE, a fourth index of the one or more indices indicates the SBFD symbol or slot of the one or more SBFD symbols or slots is configured for SBFD communications by the UE and half-duplex communications by the network entity. ### Claim 22 (depends on 17) The network entity of claim 17, wherein the one or more second control messages indicate a pattern identification associated with the configuration of the one or more SBFD symbols or slots. ### Claim 23 (depends on 22) The network entity of claim 22, wherein the pattern identification indicates a first subset of the one or more SBFD symbols or slots are configured for SBFD communications by the UE, a second subset of the one or more SBFD symbols or slots are configured for half-duplex communications by the UE, and one or more additional symbols or slots are configured for uplink, for downlink, are flexible, or any combination thereof. ### Claim 24 (depends on 17) The network entity of claim 17, wherein the one or more second control messages comprise a radio resource control (RRC) message, a medium access control (MAC) control element (MAC-CE) message, a downlink control information (DCI) message, or any combination thereof, and wherein the DCI message may be a scheduling DCI message, a non-scheduling DCI message, a group common DCI message, or any combination thereof. ### Claim 25 (depends on 16) The network entity of claim 16, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: transmit a second control message indicating a first set of parameters associated with SBFD communications by the UE and a second set of parameters associated with half-duplex communications by the UE, wherein communicating via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots is based at least in part on the first set of parameters, and wherein communicating via either the uplink resources or the downlink resources during the second SBFD symbol or slot of the one or more SBFD symbols or slots is based at least in part on the second set of parameters. ### Claim 26 (depends on 15) The network entity of claim 15, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: receive a capability message indicating the capability of the UE to support SBFD communications, partially overlapping full-duplex communications, fully overlapping full-duplex communications, or any combination thereof, from a perspective of the UE, wherein communicating via both the uplink resources and the downlink resources is based at least in part on the capability of the UE to support SBFD communications, partially overlapping full-duplex communications, fully overlapping full-duplex communications, or any combination thereof. ### Claim 27 (depends on 15) The network entity of claim 15, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: receive a capability message indicating the capability of the UE to support half duplex communications from a perspective of the UE and SBFD communications from a perspective of a network entity. ### Claim 28 (depends on 15) The network entity of claim 15, wherein, to communicating via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots, the one or more processors are individually or collectively operable to execute the code to cause the network entity to: receive uplink signaling via the uplink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots; and transmit downlink signaling via the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots. ### Claim 29 A method for wireless communications at a user equipment (UE), comprising: receiving a control message indicating configuration information associated with one or more sub-band full-duplex (SBFD) symbols or slots, wherein the configuration information indicates both uplink resources and downlink resources within at least one SBFD symbol or slot of the one or more SBFD symbols or slots; selecting both the uplink resources and the downlink resources for the at least one SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on a capability of the UE; and communicating via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on the selection. ### Claim 30 A method for wireless communications at a network entity comprising: transmitting a control message indicating configuration information associated with one or more sub-band full-duplex (SBFD) symbols or slots, wherein the configuration information indicates both uplink resources and downlink resources within at least one SBFD symbol or slot of the one or more SBFD symbols or slots; and communicating, with a single user equipment (UE), via both the uplink resources and the downlink resources during the at least one SBFD symbol or slot of the one or more SBFD symbols or slots based at least in part on a capability of the UE.