# US 2020/0404604 A1 · Wireless communication including xr traffic awareness > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0404604 A1 - Document ID: US20200404604A1 - Status: Published application - Kind: A1 - Application number: 16/903,312 - Filed: 2020-06-16 - Published: 2020-12-24 - Earliest claimed: 2019-06-24 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Prashanth Haridas HANDE; Jay Kumar SUNDARARAJAN; Yeliz TOKGOZ; Peter Pui Lok ANG - Web page: https://patentgrep.com/patent/US20200404604A1 ## CPC - H04W 56/004: {compensating for timing error of reception due to propagation delay} - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04W 72/20: Control channels or signalling for resource management - H04W 72/53: based on regulatory allocation policies - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - Y02D 30/70: in wireless communication networks - 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 A configuration to allow a base station to be synchronized with an application server to enable the base station to align uplink transmissions of a UE with downlink reception periods of the UE. The base station communicates with a UE using periodic uplink traffic bursts and periodic downlink traffic bursts. The base station selects a time offset to at least one of uplink traffic or downlink traffic to increase an overlap between the uplink traffic bursts and the downlink traffic bursts. The base station sends the time offset to an AF. ## Claims ### Claim 1 A method of wireless communication at a base station comprising: communicating with a user equipment (UE) using periodic uplink traffic bursts and periodic downlink traffic bursts; selecting a time offset to at least one of uplink traffic or downlink traffic to increase an overlap between the uplink traffic bursts and the downlink traffic bursts; and sending the time offset to an application function (AF). ### Claim 2 (depends on 1) The method of claim 1, further comprising: configuring a discontinuous reception (DRX) cycle for the UE based on a periodicity of traffic arrival for the periodic uplink traffic bursts and the periodic downlink traffic bursts. ### Claim 3 (depends on 1) The method of claim 1, further comprising: allocating resources for grant-free uplink transmission, wherein the time offset is selected to increase an alignment between the resources allocated for the grant-free uplink transmission and downlink traffic arrival. ### Claim 4 (depends on 3) The method of claim 3, further comprising: configuring a discontinuous reception (DRX) cycle for the UE based on a periodicity of the resources allocated for the grant-free uplink transmission and downlink traffic arrival. ### Claim 5 (depends on 1) The method of claim 1, wherein start times for the uplink traffic and the downlink traffic are periodic, the method further comprising: allocating resources for grant-free uplink transmission; and determining the time offset to the downlink traffic and the grant-free downlink resource allocation to increase alignment between uplink transmission resources and downlink transmission resources. ### Claim 6 (depends on 5) The method of claim 5, further comprising: configuring a discontinuous reception (DRX) cycle for the UE based on a periodicity of uplink transmission resources and downlink transmission resources. ### Claim 7 (depends on 1) The method of claim 1, wherein start times for the uplink traffic and the downlink traffic are periodic, the method further comprising: allocating resources for grant-free downlink transmission; and determining the time offset for the uplink traffic to increase alignment between downlink transmission resources and uplink traffic arrival. ### Claim 8 (depends on 7) The method of claim 7, further comprising: configuring a discontinuous reception (DRX) cycle for the UE based on a periodicity of uplink traffic arrival and downlink transmission resources. ### Claim 9 (depends on 1) The method of claim 1, wherein start times for the uplink traffic and downlink traffic are periodic, the method further comprising: allocating resources for grant-free downlink transmission; and determining the time offset to the uplink traffic and the grant-free uplink resource allocation to increase alignment between uplink transmission resources and downlink transmission resources. ### Claim 10 (depends on 9) The method of claim 9, further comprising: configuring a discontinuous reception (DRX) cycle for the UE based on a periodicity of uplink transmission resources and downlink transmission resources. ### Claim 11 An apparatus for wireless communication at a base station comprising: a memory; and at least one processor coupled to the memory and configured to: communicate with a user equipment (UE) using periodic uplink traffic bursts and periodic downlink traffic bursts; select a time offset to at least one of uplink traffic or downlink traffic to increase an overlap between the uplink traffic bursts and the downlink traffic bursts; and send the time offset to an application function (AF). ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the at least one processor is configured to: configure a discontinuous reception (DRX) cycle for the UE based on a periodicity of traffic arrival for the periodic uplink traffic bursts and the periodic downlink traffic bursts. ### Claim 13 (depends on 11) The apparatus of claim 11, wherein the at least one processor is configured to: allocate resources for grant-free uplink transmission, wherein the time offset is selected to increase an alignment between the resources allocated for the grant-free uplink transmission and downlink traffic arrival. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the at least one processor is configured to: configure a discontinuous reception (DRX) cycle for the UE based on a periodicity of the resources allocated for the grant-free uplink transmission and downlink traffic arrival. ### Claim 15 (depends on 11) The apparatus of claim 11, wherein the at least one processor is configured to: allocate resources for grant-free uplink transmission; and determine the time offset to the downlink traffic and the grant-free downlink resource allocation to increase alignment between uplink transmission resources and downlink transmission resources. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the at least one processor is configured to: configure a discontinuous reception (DRX) cycle for the UE based on a periodicity of uplink transmission resources and downlink transmission resources. ### Claim 17 (depends on 11) The apparatus of claim 11, wherein the at least one processor is configured to: allocate resources for grant-free downlink transmission; and determining the time offset for the uplink traffic to increase alignment between downlink transmission resources and uplink traffic arrival. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the at least one processor is configured to: configure a discontinuous reception (DRX) cycle for the UE based on a periodicity of uplink traffic arrival and downlink transmission resources. ### Claim 19 (depends on 11) The apparatus of claim 11, wherein the at least one processor is configured to: allocate resources for grant-free downlink transmission; and determine the time offset to the uplink traffic and the grant-free uplink resource allocation to increase alignment between uplink transmission resources and downlink transmission resources. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the at least one processor is configured to: configure a discontinuous reception (DRX) cycle for the UE based on a periodicity of uplink transmission resources and downlink transmission resources. ### Claim 21 A method of wireless communication at a User Equipment (UE), comprising: communicating with a base station using periodic uplink traffic bursts and periodic downlink traffic bursts; receiving a configuration of a discontinuous reception (DRX) cycle based on the periodic uplink and downlink traffic bursts, wherein uplink transmission are grant based; and delaying sending a scheduling request (SR) for uplink traffic to a beginning of a next DRX cycle. ### Claim 22 A method of wireless communication at a User Equipment (UE), comprising: communicating with a base station using periodic uplink traffic bursts and periodic downlink traffic bursts; selecting a time offset to at least one of uplink traffic or downlink traffic to increase overlap between the uplink traffic bursts and the downlink traffic bursts; and sending the time offset to an application client.