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Inter-access point scheduling and resource management system for dense deployments

專利號
US11159960B1
公開日期
2021-10-26
申請人
Cisco Technology, Inc.(US CA San Jose)
發(fā)明人
Robert E. Barton; Vishal Satyendra Desai; Indermeet Singh Gandhi; Jerome Henry
IPC分類
H04W24/02; H04W72/08; H04W56/00; H04B17/318; H04W84/18
技術領域
ap,aps,master,slave,schedule,or,ofdma,104g,stas,may
地域: CA CA San Jose

摘要

Systems and methods herein can synchronize 802.11ax Uplink (UL) and Downlink (DL) Orthogonal Frequency-Division Multiple Access (OFDMA) schedules between adjacent APs that have overlapping BSSs, which may not be solved by BSS coloring. The method includes several stages. First, the APs detect RF interference from APs with overlapping BSSs. Then, the APs conduct time synchronization between these APs. The various APs can then elect a master scheduler. The master scheduler creates and implements a master schedule between these APs to coordinate use of the radio resource.

說明書

The method 540, shown in FIG. 5B, may be conducted by a slave AP 104b. Generally, the method 540 starts with a start operation 542 and ends with an end operation 552. The method 540 can include more or fewer stages or can arrange the order of the stages differently than those shown in FIG. 5. The method 540 can be executed as a set of computer-executable instructions, executed by a computer system or processing component, and be encoded or stored on a storage medium. Further, the method 540 can be executed by a gate or other hardware device or component in an ASIC, a FPGA, or other type of hardware device. Hereinafter, the method 500 shall be explained with reference to the systems, components, modules, software, data structures, etc. described herein. The two methods 500 and 540 will be described in conjunction herein.

Both the AP 104c and the AP 104g may determine the RSSI of a signal received from another AP 104 of another BSS 100, in stage 508. The interference detector 204, of both the AP 104c and the AP 104g, may receive a signal 304 from another AP 104 or another station 106. Based on the RSSI determined from the received signal, the interface detector 204 can determine if there is interference from that AP 104 or station 106.

權利要求

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