# US 8,542,650 B2 · Methods and systems for concurrent data and signaling methodology for WiMAX handover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,542,650 B2 - Document ID: US8542650B2 - Status: Granted - Kind: B2 - Application number: 12/511,020 - Filed: 2009-07-28 - Published: 2010-01-28 - Granted: 2013-09-24 - Earliest claimed: 2008-07-28 - Assignees: QUALCOMM Incorporated - Applicants: Steven D. Cheng; Ayman Naguib; Doo Seok Kim - Inventors: Steven D. Cheng; Ayman Naguib; Doo Seok Kim - Web page: https://patentgrep.com/patent/US8542650B2 ## CPC - H04L 1/1887: {Scheduling and prioritising arrangements} - H04W 36/0011: {for data sessions of end-to-end connection} - 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) ## Abstract Techniques, systems and methods for concurrent data and signaling for WiMAX handover are disclosed herein. The serving base station may receive a handover request message from a mobile station and transmit a parameter to the mobile station to indicate a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange between the mobile station and the serving base station for a second set of one or more service flows during the handover procedure. The proposed techniques reduce the service suspension time during the handover procedure. ## Claims ### Claim 1 A method for wireless communications by a serving base station, comprising: receiving a handover request message from a mobile station; and transmitting a parameter t to the mobile station to indicate a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange between the mobile station and the serving base station for a second set of one or more service flows during the handover procedure, wherein the first set of one or more service flows does not support Automatic Repeat Requests (ARQ) in a media access control (MAC) layer and wherein the second set of one or more service flows supports ARQ in a MAC layer. ### Claim 2 (depends on 1) The method of claim 1, wherein support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 3 (depends on 1) The method of claim 1, wherein the parameter t is transmitted to the mobile station as a new field in a handover response message. ### Claim 4 (depends on 1) The method of claim 1, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station. ### Claim 5 A method for wireless communications by a mobile station, comprising: transmitting a handover request message to a serving base station; receiving a parameter t from the serving base station that indicates a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange for a second set of one or more service flows between the mobile station and the serving base station during the handover procedure; suspending the first set of one or more service flows during the handover procedure based on the parameter t, wherein the first set of one or more service flows does not support Automatic Repeat Request (ARQ) in a media access control (MAC) layer; and continuing the handover procedure while continuing data exchange for the second set of one or more service flows, wherein the second set of one or more service flows supports ARQ in a MAC layer. ### Claim 6 (depends on 5) The method of claim 5, wherein the support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 7 (depends on 5) The method of claim 5, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station. ### Claim 8 An apparatus for wireless communications by a serving base station, comprising: one or more processors configured to: receive a handover request message from a mobile station; and transmit a parameter t to the mobile station to indicate a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange between the mobile station and the serving base station for a second set of one or more service flows during the handover procedure, wherein the first set of one or more service flows does not support Automatic Repeat Requests (ARQ) in a media access control (MAC) layer and wherein the second set of one or more service flows supports ARQ in a MAC layer; and a memory coupled to the one or more processors. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein the parameter t is transmitted to the mobile station as a new field in a handover response message. ### Claim 11 (depends on 8) The apparatus of claim 8, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station. ### Claim 12 An apparatus for wireless communications by a mobile station, comprising: one or more processors configured to: transmit a handover request message to a serving base station; receive a parameter t from the serving base station that indicates a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange for a second set of one or more service flows between the mobile station and the serving base station during the handover procedure; suspend the first set of one or more service flows during the handover procedure based on the parameter t, wherein the first set of one or more service flows does not support Automatic Repeat Request (ARQ) in a media access control (MAC) layer; and continue the handover procedure while continuing data exchange for the second set of one or more service flows, wherein the second set of one or more service flows supports ARQ in a MAC layer; and a memory coupled to the one or more processors. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 14 (depends on 12) The apparatus of claim 12, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station. ### Claim 15 An apparatus for wireless communications by a serving base station, comprising: means for receiving a handover request message from a mobile station; and means for transmitting a parameter t to the mobile station to indicate a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange between the mobile station and the serving base station for a second set of one or more service flows during the handover procedure, wherein the first set of one or more service flows does not support Automatic Repeat Requests (ARQ) in a media access control (MAC) layer and wherein the second set of one or more service flows supports ARQ in a MAC layer. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 17 (depends on 15) The apparatus of claim 15, wherein the parameter t is transmitted to the mobile station as a new field in a handover response message. ### Claim 18 (depends on 15) The apparatus of claim 15, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station. ### Claim 19 An apparatus for wireless communications by a mobile station, comprising: means for transmitting a handover request message to a serving base station; means for receiving a parameter t from the serving base station that indicates a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange for a second set of one or more service flows between the mobile station and the serving base station during the handover procedure; means for suspending the first set of one or more service flows during the handover procedure based on the parameter t, wherein the first set of one or more service flows does not support Automatic Repeat Request (ARQ) in a media access control (MAC) layer; and means for continuing the handover procedure while continuing data exchange for the second set of one or more service flows, wherein the second set of one or more service flows supports ARQ in a MAC layer. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 21 (depends on 19) The apparatus of claim 19, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station. ### Claim 22 A non-transitory computer-readable medium for wireless communications by a serving base station, the non-transitory computer-readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising: instructions for receiving a handover request message from a mobile station; and instructions for transmitting a parameter t to the mobile station to indicate a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange between the mobile station and the serving base station for a second set of one or more service flows during the handover procedure, wherein the first set of one or more service flows does not support Automatic Repeat Requests (ARQ) in a media access control (MAC) layer and wherein the second set of one or more service flows supports ARQ in a MAC layer. ### Claim 23 (depends on 22) The non-transitory computer-readable medium of claim 22, wherein support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 24 (depends on 22) The non-transitory computer-readable medium of claim 22, wherein the parameter t is transmitted to the mobile station as a new field in a handover response message. ### Claim 25 (depends on 22) The non-transitory computer-readable medium of claim 22, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station. ### Claim 26 A non-transitory computer-readable medium for wireless communications by a mobile station, the non-transitory computer-readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising: instructions for transmitting a handover request message to a serving base station; instructions for receiving a parameter t from the serving base station that indicates a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange for a second set of one or more service flows between the mobile station and the serving base station during the handover procedure; instructions for suspending the first set of one or more service flows during the handover procedure based on the parameter t, wherein the first set of one or more service flows does not support Automatic Repeat Request (ARQ) in a media access control (MAC) layer; and instructions for continuing the handover procedure while continuing data exchange for the second set of one or more service flows, wherein the second set of one or more service flows supports ARQ in a MAC layer. ### Claim 27 (depends on 26) The non-transitory computer-readable medium of claim 26, wherein the support for ARQ is indicated in a registration request (REG-REQ) message. ### Claim 28 (depends on 26) The non-transitory computer-readable medium of claim 26, wherein the parameter t indicates a relative time after reception of the parameter t to suspend the service flows of the first set of service flows between the mobile station and the base station.