# US 8,570,954 B2 · System and method for QOS provisioning in broadband wireless mesh networks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,570,954 B2 - Document ID: US8570954B2 - Status: Granted - Kind: B2 - Application number: 12/033,828 - Filed: 2008-02-19 - Published: 2008-08-21 - Granted: 2013-10-29 - Earliest claimed: 2007-02-16 - Assignees: Aruba Networks, Inc. - Applicants: Fang Wu; Fuyong Zhao; Haiyun Luo - Inventors: Fang Wu; Fuyong Zhao; Haiyun Luo - Web page: https://patentgrep.com/patent/US8570954B2 ## CPC - H04W 40/12: based on transmission quality or channel quality - H04L 47/70: Admission control; Resource allocation - H04L 47/805: {QOS or priority aware} - H04L 47/824: {Applicable to portable or mobile terminals} - H04W 88/12: Access point controller devices - 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 A method and system for QoS provisioning in broadband wireless mesh networks are disclosed. According to one embodiment, a computer-implemented method, comprises providing a dual mode mesh router having a plurality of radios, wherein the mesh router is used in a cell of a plurality of cells that covers a geographic region. The mesh router includes one or more WiMAX backhaul radios, one or more WiFi backhaul radios, one or more WiMAX access radios, one or more WiFi access radios, and three or more intra-mesh radios. Traffic is received at the dual mode mesh router. A minimum quality of service requirement is identified for the traffic. The traffic is routed via the one or more WiMAX backhaul radio when the minimum quality of service meets a predetermined value. ## Claims ### Claim 1 A computer-implemented method, comprising: receiving incoming traffic at a network device; classifying the incoming traffic into two or more quality of service (QoS) categories at an intermediate node in a wireless network; and re-routing, by the network device, the incoming traffic through cross links based on a classified QoS category associated with the incoming traffic, wherein re-routing the incoming traffic further comprises: in response to a reservation requirement being identified and an unallocated slot being available in a licensed frequency band, re-routing the incoming traffic to the unallocated slot in the licensed frequency band to meet the reservation requirement; in response to the reservation requirement being identified but no unallocated slot being available in the licensed frequency band, re-routing the incoming traffic to a best-effort slot in the licensed frequency band; and in response to the reservation requirement being identified and down-gradable, re-routing the incoming traffic to an unlicensed frequency band with lowered QoS requirements. ### Claim 2 (depends on 1) The computer-implemented method of claim 1, wherein re-routing of the incoming traffic based on the classified QoS category includes cross-linking between links of different performance and cost, wherein the links comprise one or more of a WiMAX backhaul link, a WiMAX access link, a WLAN mesh backhaul link, and a WLAN access link. ### Claim 3 (depends on 1) The computer-implemented method of claim 1, further comprising classifying the incoming traffic for fine-grained QoS control and mobility optimization. ### Claim 4 (depends on 1) The computer-implemented method of claim 1, wherein re-routing the incoming traffic through cross links based on the classified QoS category associated with the incoming traffic includes: temporarily downgrading the transport QoS of the incoming traffic with the lowered QoS requirements, and re-scheduling or re-routing the incoming traffic from a congested route in the licensed frequency band to an underutilized route in the unlicensed frequency band. ### Claim 5 (depends on 1) The computer-implemented method of claim 1, wherein re-routing the incoming traffic through cross links based on the classified QoS category associated with the incoming traffic includes: temporarily upgrading the QoS of the incoming traffic, and re-scheduling or re-routing the incoming traffic from the unlicensed frequency band to an underutilized route in the licensed frequency band. ### Claim 6 A non-transitory computer-readable medium having stored thereon a plurality of instructions, said plurality of instructions when executed by a computer, cause said computer to perform: receiving incoming traffic at a network device; classifying the incoming traffic into two or more quality of service (QoS) categories at an intermediate node in a wireless network; and re-routing, by the network device, the incoming traffic through cross links based on a classified QoS category associated with the incoming traffic, wherein re-routing the incoming traffic further comprises: in response to a reservation requirement being identified and an unallocated slot being available in a licensed frequency band, re-routing the incoming traffic to the unallocated slot in the licensed frequency band to meet the reservation requirement; in response to the reservation requirement being identified but no unallocated slot being available in the licensed frequency band, re-routing the incoming traffic to a best-effort slot in the licensed frequency band; and in response to the reservation requirement being identified and down-gradable, re-routing the incoming traffic to an unlicensed frequency band with lowered QoS requirements. ### Claim 7 (depends on 6) The non-transitory computer-readable medium of claim 6, wherein re-routing of the incoming traffic based on the classified QoS category includes cross-linking between links of different performance and cost, wherein the links comprise one or more of a WiMAX backhaul link, a WiMAX access link, a WLAN mesh backhaul link, and a WLAN access link. ### Claim 8 (depends on 6) The non-transitory computer-readable medium of claim 6 having stored thereon-additional instructions, said additional instructions when executed by a computer, cause said computer to further perform classifying the incoming traffic for fine-grained QoS control and mobility optimization. ### Claim 9 (depends on 6) The non-transitory computer-readable medium of claim 6, wherein re-routing the incoming traffic through cross links based on the classified QoS category associated with the incoming traffic includes: temporarily downgrading the transport QoS of the incoming traffic with the lowered QoS requirements, and re-scheduling or re-routing the incoming traffic from a congested route in the licensed frequency band to an underutilized route in the unlicensed frequency band. ### Claim 10 (depends on 6) The non-transitory computer-readable medium of claim 6, wherein re-routing the incoming traffic through cross links based on the classified QoS category associated with the incoming traffic includes: temporarily upgrading the QoS of the incoming traffic, and re-scheduling or re-routing the incoming traffic from the unlicensed frequency band to an underutilized route in the licensed frequency band. ### Claim 11 A network device, comprising: a processor; a memory coupled to the processor; and a traffic controller that receives incoming traffic, classifies the incoming traffic into two or more quality of service (QoS) categories, and re-routing the incoming traffic through cross links based on a classified QoS category associated with the incoming traffic, wherein re-routing the incoming traffic further comprises: in response to a reservation requirement being identified and an unallocated slot being available in a licensed frequency band, re-routing the incoming traffic to the unallocated slot in the licensed frequency band to meet the reservation requirement; in response to the reservation requirement being identified but no unallocated slot being available in the licensed frequency band, re-routing the incoming traffic to a best-effort slot in the licensed frequency band; and in response to the reservation requirement being identified and down-gradable, re-routing the incoming traffic to an unlicensed frequency band with lowered QoS requirements. ### Claim 12 (depends on 11) The network device of claim 11, wherein re-routing of the incoming traffic based on the classified QoS category includes cross-linking between links of different performance and cost, wherein the links comprise one or more of a WiMAX backhaul link, a WiMAX access link, a WLAN mesh backhaul link, and a WLAN access link. ### Claim 13 (depends on 11) The network device of claim 11, wherein the traffic controller further classifies the incoming traffic for fine-grained QoS control and mobility optimization. ### Claim 14 (depends on 11) The network device of claim 11, wherein the traffic controller re-routing the incoming traffic through cross links based on the classified QoS category associated with the incoming traffic includes: temporarily downgrading the transport QoS of the incoming traffic with the lowered QoS requirements, and re-scheduling or re-routing the incoming traffic from a congested route in the licensed frequency band to an underutilized route in the unlicensed frequency band. ### Claim 15 (depends on 11) The network device of claim 11, wherein the traffic controller re-routing the incoming traffic through cross links based on the classified QoS category associated with the incoming traffic includes: temporarily upgrading the QoS of the incoming traffic, and re-scheduling or re-routing the incoming traffic from the unlicensed frequency band to an underutilized route in the licensed frequency band.