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Method and wireless device for compressing channel measurement parameters in wireless local area network

A wireless local area network, wireless device technology, applied in the field of communication

Active Publication Date: 2022-04-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If all the data including channel measurement parameters are sent, it will inevitably bring a lot of resource overhead

Method used

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  • Method and wireless device for compressing channel measurement parameters in wireless local area network
  • Method and wireless device for compressing channel measurement parameters in wireless local area network
  • Method and wireless device for compressing channel measurement parameters in wireless local area network

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Embodiment Construction

[0045] The technical solution in this application will be described below with reference to the accompanying drawings.

[0046] The technical solutions of the embodiments of the present application can be applied to a WLAN system. The first wireless device and the second wireless device in this application may be wireless devices in the WLAN system. The technical solution of the embodiment of the present application may be applied in a WLAN, and the first wireless device and the second wireless device in the embodiment of the present application may be respectively a terminal device and a network device in a WLAN system. The terminal devices here can be mobile terminals (for example, smart phones), wearable devices, Internet of Things devices, vehicle communication devices, personal digital assistants, laptops and other devices that can communicate in the WLAN system, and the network devices can be devices in the WLAN system. AP etc.

[0047] figure 1 It is a schematic diag...

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Abstract

Provided are a method for compressing channel measurement parameters in a wireless local area network and a wireless device. The method includes: the first wireless device receives the wireless signal sent by the second wireless device through the first channel; the first wireless device measures the wireless signal to obtain the initial time-domain characteristic parameters of the first channel, and the initial time-domain characteristic parameters include M Sampling data, M is an integer greater than 1; the first wireless device determines the target time domain characteristic parameter of the first channel according to the initial time domain characteristic parameter, the target time domain characteristic parameter is composed of N sampling data in the M sampling data, N The signal energy corresponding to any one of the sampled data is greater than or equal to the first energy threshold, and N is a positive integer smaller than M; the first wireless device sends the target time domain characteristic parameter to the second wireless device. The compression of the channel measurement parameters reduces the bandwidth occupied when transmitting the channel measurement parameters.

Description

technical field [0001] The present application relates to the technical field of communications, and more particularly relates to a method and a wireless device for compressing channel measurement parameters in a wireless local area network (wireless local area network, WLAN). Background technique [0002] In a wireless local area network, a terminal device may send a channel measurement parameter to a wireless access point (access point, AP), where the channel measurement parameter can reflect a state of a channel between the terminal device and the AP. The measurement of the channel state can be used for beamforming, multiple input multiple output (MIMO), terminal device positioning, or other purposes. [0003] Usually, channel measurement parameters include a large amount of data. Taking channel state information (CSI) as an example (CSI can be regarded as a specific channel measurement parameter), channel state information is composed of three dimensions: subcarriers, r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/08H04B17/309H04B17/345
CPCH04W24/08H04B17/309H04B17/345
Inventor 潘淳王云贵何志健徐永千
Owner HUAWEI TECH CO LTD
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