An antenna selection method and device and a wireless access device

Abstract

The embodiments of the invention disclose an antenna selecting method, device and wireless access equipment for solving the problem that the existing antenna selection easily influences the screening result of an antenna combination due to the transmitting rate change of the current antenna combination. The method comprises the steps of: acquiring a training transmitting rate; polling each target antenna combination by adopting the training transmitting rate, and respectively calculating the first packet loss rate of each target antenna combination during polling; judging whether each first packet loss rate satisfies a packet loss rate condition, if so, determining the training transmitting rate as an antenna transmitting rate, otherwise, increasing the training transmitting rate and returning to continue polling; polling each target antenna combination by adopting the antenna transmitting rate, and respectively calculating the second packet loss rate of each target antenna combination during polling; screening each target antenna combination according to each second packet loss rate, and then determining the target antenna combination satisfying a preset screening condition as an antenna combination for communication.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an antenna selection method, device and wireless access equipment. Background technique [0002] With the continuous improvement of data transmission rate requirements, MIMO (Multiple Input Multiple Output) multi-antenna technology is widely used in current WIFI products to improve throughput. Since the wireless AP (WirelessAccessPoint) is equipped with multiple antennas, and the channel environment of the antenna is greatly affected by various environmental factors, in order to ensure the communication quality between the AP and the communication terminal, how to dynamically select the antenna with the best communication quality to important. [0003] At present, the smart antenna selection algorithm generally uses the packet loss rate as the basis for the polling of the antennas. When the packet loss rate meets certain conditions, the antenna combination with th...

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Problems solved by technology

[0004] However, due to the complexity of the wireless channel, the transmission rate of the antenna combination is easy to change with the change of the channel environment, such as rate selection and antenna polling interleaving. It is easy to calculate the packet loss rate of each antenna combination based on the changing transmission rate. Because the transmission rate of the current antenna combination changes, the selection result of the antenna combination is affected, which reduces the stability and accuracy of the antenna selection.

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