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SRS transmission method and device, network equipment, terminal and storage medium

A transmission method and technology of network equipment, applied in the direction of transmission system, digital transmission system, multiple use of transmission path, etc., can solve the problems such as unable to meet the timing and frequency deviation requirements, and achieve the effect of meeting the timeliness requirements

Active Publication Date: 2021-05-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] Embodiments of the present invention provide an SRS transmission method, device, network equipment, terminal and storage medium to solve the problem that the existing SRS cannot meet the timely capture of uplink timing and frequency deviation requirements

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  • SRS transmission method and device, network equipment, terminal and storage medium
  • SRS transmission method and device, network equipment, terminal and storage medium
  • SRS transmission method and device, network equipment, terminal and storage medium

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Embodiment Construction

[0080] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0081] In the low-orbit satellite communication system, the speed of the satellite is as high as 8km / s, which causes the propagation distance between the terminal and the satellite to change rapidly, and the Doppler frequency shift also changes rapidly. When the positioning information or ephemeris information of the terminal is inaccurate, it is ...

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Abstract

An embodiment of the invention provides an SRS transmission method and device, network equipment, a terminal and a storage medium. The SRS transmission method comprises the steps of: determining SRS configuration information based on uplink related information corresponding to the terminal; issuing the SRS configuration information to the terminal; and receiving an SRS signal sent by the terminal based on the SRS configuration information. According to the SRS transmission method and the device, the network equipment, the terminal and the storage medium provided by the embodiment of the invention, the SRS configuration information is determined based on the uplink related information, and the dynamic configuration of the SRS related parameters is realized, so that the SRS related configuration can better adapt to the rapid change of Doppler frequency shift and transmission delay caused by the rapid movement of a satellite, therefore, the uplink time-frequency estimation can resist fast changing timing and frequency deviation, and the timeliness requirement of the uplink time-frequency estimation is met.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an SRS transmission method, device, network equipment, terminal and storage medium. Background technique [0002] In a current communication system, a network device usually corrects an uplink time-frequency offset error based on an SRS (sounding reference signal, channel sounding reference signal) sent by a terminal. [0003] In the satellite communication system, due to the fast movement of the satellite, the propagation distance between the terminal and the satellite is also changing rapidly, which leads to the rapid change of Doppler frequency shift and transmission delay. When the positioning information or ephemeris information of the terminal is inaccurate, it is difficult to compensate the deviation of timing information in real time, which will cause a large error in uplink synchronization. At present, only based on the SRS, it is impossible to me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00
CPCH04L5/0048H04W72/23H04L5/0094H04L5/0051
Inventor 缪德山黄秋萍汤文
Owner DATANG MOBILE COMM EQUIP CO LTD
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