# US 8,149,843 B2 · Capability exchange between network entities in WiMAX > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,149,843 B2 - Document ID: US8149843B2 - Status: Granted - Kind: B2 - Application number: 11/477,747 - Filed: 2006-06-28 - Published: 2008-01-03 - Granted: 2012-04-03 - Earliest claimed: 2006-06-28 - Assignees: Cisco Technology, Inc. - Inventors: Anand K. Oswal; Jayaraman Iyer; Bhaskar Bhupalam - Web page: https://patentgrep.com/patent/US8149843B2 ## CPC - H04W 28/16: Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service] - H04L 12/66: Arrangements for connecting between networks having differing types of switching systems, e.g. gateways - H04W 8/24: Transfer of terminal data - 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 Techniques for exchanging capabilities in a wireless network are provided. In one embodiment, a first device receives a capability message over a communication link from a second device in a WiMAX network. The communication link may be between any combination of base stations and gateways. For example, the R4, R6, or R8 interface may be used. Other interfaces may also be appreciated in a WiMAX network. The capability message includes one or more capabilities supported by a second device in the WiMAX network. Capabilities to support are then determined based on the one or more capabilities. These capabilities will be supported by the first device for communications with the second device. The first device is then configured to support the determined capabilities. Accordingly, the first device is dynamically configured based on the capability message received. ## Claims ### Claim 1 A method, comprising: sending, over a first communication link using a first interface in a worldwide interoperability for microwave access (WiMAX) service network, a first capability message from a base station to a first device, wherein the first capability message is a type length value (TLV) message comprising a first set of capabilities of the base station, wherein the first set of capabilities includes a quality of service (QoS), a maximum number of sessions, and a tunneling type to be used; receiving, over the first communication link using the first interface, a second capability message from the first device to the base station, wherein the second capability message is a TLV message comprising a second set of capabilities of the first device, wherein the second set of capabilities is a first subset of the first set of capabilities; sending, over a second communication link using a second interface, a third capability message from the base station to a second device, wherein the third capability message is a TLV message comprising the first set of capabilities of the base station; receiving, over the second communication link using the second interface, a fourth capability message from the second device to the base station, wherein the fourth capability message is a TLV message comprising a third set of capabilities of the second device, wherein the third set of capabilities is a second subset of the first set of capabilities; configuring the base station to support the second set of capabilities for communications with the first device; and configuring the base station to support the third set of capabilities for communications with the second device. ### Claim 2 (depends on 1) The method of claim 1, wherein: the first interface comprises an R6 interface; the second interface comprises an R6 interface; the first device comprises a first gateway; and the second device comprises a second gateway. ### Claim 3 (depends on 1) The method of claim 1, wherein: the first interface comprises an R6 interface; the second interface comprises an R8 interface; the first device comprises a gateway; and the second device comprises a second base station. ### Claim 4 (depends on 1) The method of claim 1, wherein: the first device is configured to support the second set of capabilities for communications with the base station; and the second device is configured to support the third set of capabilities for communications with the base station. ### Claim 5 (depends on 1) The method of claim 1, wherein the configuring the base station to support the second set of capabilities is in a first session, and the method further comprises: sending, over the first communication link using the first interface, a fifth capability message from the base station to the first device in a second session, wherein the fifth capability message is a TLV message comprising a fourth set of capabilities of the base station, wherein the fourth set of capabilities includes another quality of service (QoS); receiving, over the first communication link using the first interface, a sixth capability message from the first device to the base station, wherein the sixth capability message is a TLV message comprising a fifth set of capabilities of the first device, wherein the fifth set of capabilities is a third subset of the fourth set of capabilities; and configuring the base station to support the fifth set of capabilities for communications with the first device in the second session. ### Claim 6 (depends on 1) The method of claim 1, wherein the WiMAX service network comprises an application service provider network configured to provide access to a subscriber station. ### Claim 7 (depends on 6) The method of claim 6, wherein the application service provider network connects the subscriber station to a telecommunication service provider network. ### Claim 8 An apparatus comprising: a processor; a capability configuring element; and a capability exchange negotiator, wherein the apparatus is configured for: sending, over a first communication link using a first interface in a worldwide interoperability for microwave access (WiMAX) service network, a first capability message from a base station to a first device, wherein the first capability message is a type length value (TLV) message comprising a first set of capabilities of the base station, wherein the first set of capabilities includes a quality of service (QoS), a maximum number of sessions, and a tunneling type to be used; receiving, over the first communication link using the first interface, a second capability message from the first device to the base station, wherein the second capability message is a TLV message comprising a second set of capabilities of the first device, wherein the second set of capabilities is a first subset of the first set of capabilities; sending, over a second communication link using a second interface, a third capability message from the base station to a second device, wherein the third capability message is a TLV message comprising the first set of capabilities of the base station; receiving, over the second communication link using the second interface, a fourth capability message from the second device to the base station, wherein the fourth capability message is a TLV message comprising a third set of capabilities of the second device, wherein the third set of capabilities is a second subset of the first set of capabilities; configuring the base station to support the second set of capabilities for communications with the first device; and configuring the base station to support the third set of capabilities for communications with the second device. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein: the first interface comprises an R6 interface; the second interface comprises an R6 interface; the first device comprises a first gateway; and the second device comprises a second gateway. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein: the first interface comprises an R6 interface; the second interface comprises an R8 interface; the first device comprises a gateway; and the second device comprises a second base station. ### Claim 11 (depends on 8) The apparatus of claim 8, wherein: the first device is configured to support the second set of capabilities for communications with the base station; and the second device is configured to support the third set of capabilities for communications with the base station. ### Claim 12 (depends on 8) The apparatus of claim 8, wherein the configuring the base station to support the second set of capabilities is in a first session, and the apparatus is further configured for: sending, over the first communication link using the first interface, a fifth capability message from the base station to the first device in a second session, wherein the fifth capability message is a TLV message comprising a fourth set of capabilities of the base station, wherein the fourth set of capabilities includes another quality of service (QoS); receiving, over the first communication link using the first interface, a sixth capability message from the first device to the base station, wherein the sixth capability message is a TLV message comprising a fifth set of capabilities of the first device, wherein the fifth set of capabilities is a third subset of the fourth set of capabilities; and configuring the base station to support the fifth set of capabilities for communications with the first device in the second session. ### Claim 13 Logic encoded in non-transitory media that includes code for execution and when executed by a processor, is operable to perform operations, comprising: sending, over a first communication link using a first interface in a worldwide interoperability for microwave access (WiMAX) service network, a first capability message from a base station to a first device, wherein the first capability message is a type length value (TLV) message comprising a first set of capabilities of the base station, wherein the first set of capabilities includes a quality of service (QoS), a maximum number of sessions, and a tunneling type to be used; receiving, over the first communication link using the first interface, a second capability message from the first device to the base station, wherein the second capability message is a TLV message comprising a second set of capabilities of the first device, wherein the second set of capabilities is a first subset of the first set of capabilities; sending, over a second communication link using a second interface, a third capability message from the base station to a second device, wherein the third capability message is a TLV message comprising the first set of capabilities of the base station; receiving, over the second communication link using the second interface, a fourth capability message from the second device to the base station, wherein the fourth capability message is a TLV message comprising a third set of capabilities of the second device, wherein the third set of capabilities is a second subset of the first set of capabilities; configuring the base station to support the second set of capabilities for communications with the first device; and configuring the base station to support the third set of capabilities for communications with the second device. ### Claim 14 (depends on 13) The logic of claim 13, wherein: the first interface comprises an R6 interface; the second interface comprises an R6 interface; the first device comprises a first gateway; and the second device comprises a second gateway. ### Claim 15 (depends on 13) The logic of claim 13, wherein: the first interface comprises an R6 interface; the second interface comprises an R8 interface; the first device comprises a gateway; and the second device comprises a second base station. ### Claim 16 (depends on 13) The logic of claim 13, wherein: the first device is configured to support the second set of capabilities for communications with the base station; and the second device is configured to support the third set of capabilities for communications with the base station. ### Claim 17 (depends on 13) The logic of claim 13, wherein the configuring the base station to support the second set of capabilities is in a first session, and the operations further comprise: sending, over the first communication link using the first interface, a fifth capability message from the base station to the first device in a second session, wherein the fifth capability message is a TLV message comprising a fourth set of capabilities of the base station, wherein the fourth set of capabilities includes another quality of service (QoS); receiving, over the first communication link using the first interface, a sixth capability message from the first device to the base station, wherein the sixth capability message is a TLV message comprising a fifth set of capabilities of the first device, wherein the fifth set of capabilities is a third subset of the fourth set of capabilities; and configuring the base station to support the fifth set of capabilities for communications with the first device in the second session.