发明授权
- 专利标题: Method and apparatus for network management using periodic measurements of indicators
- 专利标题(中): 使用周期测量指标的网络管理方法和装置
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申请号: US10845822申请日: 2004-05-14
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公开(公告)号: US07710930B2公开(公告)日: 2010-05-04
- 发明人: Joseph A. Kwak
- 申请人: Joseph A. Kwak
- 申请人地址: US DE Wilmington
- 专利权人: InterDigital Technology Corporation
- 当前专利权人: InterDigital Technology Corporation
- 当前专利权人地址: US DE Wilmington
- 代理机构: Volpe & Koenig, P.C.
- 主分类号: H04W4/00
- IPC分类号: H04W4/00
摘要:
A beacon signal used in data communications, such as the IEEE 802.11, is provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. Periodic beacon requests are made during connection between a wireless transmit/receive unit (WTRU) and an access point (AP) on a WLAN. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode which includes “Active Scan” mode, “Passive Scan” mode and “Beacon Table” mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID. In Passive Scan mode, the measuring STA passively receives on the specified channel and return a beacon report containing one information element for each STA from which it detects a beacon or probe response. In Beacon Table mode, the measuring STA returns a beacon report containing the current contents of its beacon table without performing additional measurements.