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Communication method, device and communication system

A communication method and reference signal technology, applied in the field of communication, can solve the problems of reducing the accuracy of detection results and the like

Active Publication Date: 2022-02-25
HUAWEI TECH CO LTD
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Problems solved by technology

When the receiving end receives and detects the wireless signal, it will be easier to detect the signal on the propagation path with strong energy and ignore the signal in the propagation path with weak energy. However, the transmission time required to transmit the reference signal on different paths Different, when the network equipment and the terminal equipment detect the arrival time of the reference signal, the transmission time of the uplink reference signal and the downlink reference signal are different, which will introduce additional detection errors and reduce the accuracy of the detection results.

Method used

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  • Communication method, device and communication system
  • Communication method, device and communication system
  • Communication method, device and communication system

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Embodiment Construction

[0090] The technical solution in this application will be described below with reference to the accompanying drawings.

[0091] figure 1 It is the wireless communication system 100 applied in the embodiment of this application. The wireless communication system 100 may include a network device 110 . The network device 110 may be a device that communicates with the terminal device 120 . The network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.

[0092] figure 1 One network device and two terminal devices are exemplarily shown. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. Examples are not limited to this.

[0093] Optionally, the wireless communication system 100 may further include other network entities such as a network controller ...

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Abstract

The present application provides a communication method, device and communication system, the method comprising: the terminal equipment uses the first antenna weight vector to receive the target downlink reference signal sent by the network equipment; the terminal equipment uses the second antenna weight vector set Sending a target uplink reference signal to the network device, wherein the second antenna weight vector set has the same ratio as the weight magnitude corresponding to the same antenna in the first antenna weight vector, and / or the second The antenna weight vector set is in the same phase as the weight corresponding to the same antenna in the first antenna weight vector. It is beneficial to improve the accuracy of time synchronization or calculation of air interface loopback delay.

Description

technical field [0001] The present application relates to the communication field, and more particularly, to a communication method, device and communication system. Background technique [0002] Wireless communication technology has penetrated into many traditional industries and derived many emerging application scenarios. In order to meet the requirements of different application scenarios, higher requirements are put forward for the current communication system. For example, in an industrial application scenario, time synchronization (clock synchronization or time synchronization) between devices is required to have high precision. Some special industrial applications require the time synchronization accuracy between terminal devices to be within ±1us. For another example, higher detection accuracy is required in the process of detecting air interface loopback delay. [0003] At present, in a communication system, both time synchronization and air interface loopback d...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048H04L5/0092H04L5/00
Inventor 杨坤汲桐高峰于光炜
Owner HUAWEI TECH CO LTD
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