# US 2025/0096995 A1 · Full duplex operation under cell discontinuous transmission and discontinuous reception > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0096995 A1 - Document ID: US20250096995A1 - Status: Published application - Kind: A1 - Application number: 18/468,491 - Filed: 2023-09-15 - Published: 2025-03-20 - Earliest claimed: 2023-09-15 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Ahmed Attia ABOTABL; Diana MAAMARI; Muhammad Sayed Khairy ABDELGHAFFAR; Wanshi CHEN - Web page: https://patentgrep.com/patent/US20250096995A1 ## CPC - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04L 5/0092: {Indication of how the channel is divided} - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - Y02D 30/70: in wireless communication networks - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Certain aspects of the present disclosure provide techniques for full duplex (FD) operation under cell discontinuous transmission (DTX) and discontinuous reception (DRX). An example method, performed at a user equipment (UE), includes receiving configuration information indicating, for a network entity operating in a subband full duplex (SBFD) mode, DRX cycles and DTX cycles, wherein each DRX cycle has an inactive DRX period and an active DRX period and each DTX cycle has an inactive DTX period and an active DTX period, determining that an SBFD slot occurs during an overlap of 1) an active DRX period and an inactive DTX period or 2) an inactive DRX period and an active DTX period, and performing one or more actions during the SBFD slot, based on the determination and whether the UE is configured to communicate on an uplink subband or a downlink subband in the SBFD slot. ## Claims ### Claim 1 An apparatus for wireless communications at a user equipment (UE), comprising: one or more processors individually or collectively configured to execute instructions stored on one or more memories and to cause the UE to: receive configuration information indicating, for a network entity operating in a subband full duplex (SBFD) mode, discontinuous reception (DRX) cycles and discontinuous transmission (DTX) cycles, wherein each DRX cycle has an inactive DRX period and an active DRX period and each DTX cycle has an inactive DTX period and an active DTX period; determine that an SBFD slot occurs during an overlap of 1) an active DRX period and an inactive DTX period or 2) an inactive DRX period and an active DTX period; and perform one or more actions during the SBFD slot, based on the determination and whether the UE is configured to communicate on an uplink subband or a downlink subband in the SBFD slot. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the overlap comprises an overlap of an active DRX period and an inactive DTX period. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the UE is configured to communicate on an uplink subband in the SBFD slot. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to transmit signals on the uplink subband. ### Claim 5 (depends on 3) The apparatus of claim 3, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to transmit signals in a frequency band of the SBFD slot, and the frequency band includes the uplink subband and a subband allocated for downlink communications. ### Claim 6 (depends on 2) The apparatus of claim 2, wherein the UE is configured to communicate on a downlink subband. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to enter a low power state during the SBFD slot. ### Claim 8 (depends on 6) The apparatus of claim 6, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to transmit signals on an uplink subband. ### Claim 9 (depends on 6) The apparatus of claim 6, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to transmit signals in a frequency band of the SBFD slot, and the frequency band includes the downlink subband and a subband allocated for uplink communications. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the overlap comprises an overlap of an inactive DRX period and an active DTX period. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the UE is configured to communicate on an uplink subband in the SBFD slot. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to enter a low power state during the SBFD slot. ### Claim 13 (depends on 11) The apparatus of claim 11, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to receive signals in a downlink subband. ### Claim 14 (depends on 11) The apparatus of claim 11, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to receive signals in a frequency band of the SBFD slot, and the frequency band includes the uplink subband and a subband allocated for downlink communications. ### Claim 15 (depends on 10) The apparatus of claim 10, wherein the UE is configured to communicate on a downlink subband. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to receive signals in the downlink subband. ### Claim 17 (depends on 15) The apparatus of claim 15, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the UE to receive signals in a frequency band of the SBFD slot, and the frequency band includes the downlink subband and a subband allocated for uplink communications. ### Claim 18 An apparatus for wireless communications at a network entity, comprising: one or more processors individually or collectively configured to execute instructions stored on one or more memories and to cause the network entity to: transmit configuration information for a user equipment (UE), the configuration information indicating discontinuous reception (DRX) cycles and discontinuous transmission (DTX) cycles, wherein each DRX cycle has an inactive DRX period and an active DRX period and each DTX cycle has an inactive DTX period and an active DTX period; determine, while the network entity is operating in a subband full duplex (SBFD) mode, that an SBFD slot occurs during an overlap of 1) an active DRX period and an inactive DTX period or 2) an inactive DRX period and an active DTX period; and perform one or more actions during the SBFD slot, based on the determination and whether the UE is configured to communicate on an uplink subband or a downlink subband in the SBFD slot. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the overlap comprises an overlap of an active DRX period and an inactive DTX period. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the configuration information configures the UE to communicate on an uplink subband in the SBFD slot. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the network entity to receive signals on the uplink subband. ### Claim 22 (depends on 20) The apparatus of claim 20, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the network entity to receive signals in a frequency band of the SBFD slot, and the frequency band includes the uplink subband and a subband allocated for downlink communications. ### Claim 23 (depends on 19) The apparatus of claim 19, wherein the configuration information configures the UE to communicate on a downlink subband. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the network entity to refrain from communicating with the UE during the SBFD slot. ### Claim 25 (depends on 23) The apparatus of claim 23, wherein, in order to perform the one or more actions, the one or more processors are further configured to cause the network entity to at least one of: receive signals on an uplink subband, or receive signals in a frequency band of the SBFD slot, the frequency band including the downlink subband and a subband allocated for uplink communications. ### Claim 26 (depends on 18) The apparatus of claim 18, wherein the overlap comprises an overlap of an inactive DRX period and an active DTX period. ### Claim 27 (depends on 26) The apparatus of claim 26, wherein: the configuration information configures the UE to communicate on an uplink subband in the SBFD slot, and in order to perform the one or more actions, the one or more processors are further configured to cause the network entity to at least one of: refrain from communicating with the UE during the SBFD slot, transmit signals in a downlink subband, or transmit signals in a frequency band of the SBFD slot, the frequency band including the uplink subband and a subband allocated for downlink communications. ### Claim 28 (depends on 26) The apparatus of claim 26, wherein: the configuration information configures the UE to communicate on a downlink subband, and in order to perform the one or more actions, the one or more processors are further configured to cause the network entity to at least one of: transmit signals in the downlink subband, or transmit signals in a frequency band of the SBFD slot, wherein the frequency band includes the downlink subband and a subband allocated for uplink communications. ### Claim 29 A method for wireless communications at a user equipment (UE), comprising: receiving configuration information indicating, for a network entity operating in a subband full duplex (SBFD) mode, discontinuous reception (DRX) cycles and discontinuous transmission (DTX) cycles, wherein each DRX cycle has an inactive DRX period and an active DRX period and each DTX cycle has an inactive DTX period and an active DTX period; determining that an SBFD slot occurs during an overlap of 1) an active DRX period and an inactive DTX period or 2) an inactive DRX period and an active DTX period; and performing one or more actions during the SBFD slot, based on the determination and whether the UE is configured to communicate on an uplink subband or a downlink subband in the SBFD slot. ### Claim 30 A method for wireless communications at a network entity, comprising: transmitting configuration information for a user equipment (UE), the configuration information indicating discontinuous reception (DRX) cycles and discontinuous transmission (DTX) cycles, wherein each DRX cycle has an inactive DRX period and an active DRX period and each DTX cycle has an inactive DTX period and an active DTX period; determining, while the network entity is operating in a subband full duplex (SBFD) mode, that an SBFD slot occurs during an overlap of 1) an active DRX period and an inactive DTX period or 2) an inactive DRX period and an active DTX period; and performing one or more actions during the SBFD slot, based on the determination and whether the UE is configured to communicate on an uplink subband or a downlink subband in the SBFD slot.