发明授权
- 专利标题: Method and apparatus for bandwidth request/grant protocols in a wireless communication system
- 专利标题(中): 无线通信系统中带宽请求/授权协议的方法和装置
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申请号: US10978903申请日: 2004-11-01
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公开(公告)号: US07529193B2公开(公告)日: 2009-05-05
- 发明人: Ofer Zimmerman , Kenneth L. Stanwood , Yair Bourlas
- 申请人: Ofer Zimmerman , Kenneth L. Stanwood , Yair Bourlas
- 申请人地址: CA Ottawa, Ontario
- 专利权人: Wi-LAN, Inc.
- 当前专利权人: Wi-LAN, Inc.
- 当前专利权人地址: CA Ottawa, Ontario
- 代理机构: Procopio, Cory, Hargreaves & Savitch LLP
- 主分类号: H04Q7/20
- IPC分类号: H04Q7/20
摘要:
A method and apparatus for allocating bandwidth in a broadband wireless communication system is disclosed. One embodiment uses a self-correcting bandwidth request/grant protocol. The self-correcting bandwidth request/grant protocol utilizes a combination of incremental and aggregate bandwidth requests. CPEs primarily transmit incremental bandwidth requests to their associated base stations, followed by periodic transmissions of aggregate bandwidth requests. The use of periodic aggregate bandwidth requests (that express the current state of their respective connection queues) allows the bandwidth allocation method and apparatus to be “self-correcting”. Another embodiment utilizes an abridged bandwidth request/grant protocol to allocate bandwidth. The abridged bandwidth request/grant protocol system utilizes padding packets to request a reduction in bandwidth allocation to a CPE. A base station modem alerts a base station CPU when the BS modem receives a padding packet from a CPE. After alerting the BS CPU the method can reduce the associated CPE's bandwidth allocation.
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