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Signal sending and receiving method and device

A signal receiving and terminal equipment technology, applied in the field of communication, can solve problems such as frequency deviation, terminal equipment cannot be found, and affect the performance of communication between network equipment and terminal equipment, so as to achieve the effect of improving accuracy and reducing frequency deviation

Active Publication Date: 2019-10-22
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the NR system, for example, the frequency of the reference subcarrier of the SSB broadcast by the network equipment is 900MHz. Since the frequency determined by the terminal equipment may have a large deviation, for example, the 899.995MHz understood by the terminal equipment is actually 900MHz, and the terminal equipment follows the The frequency of 899.995MHz understood by the terminal device can successfully receive the SSB broadcast by the network device. Considering that 899.995MHz is also a frequency that satisfies the synchronization grid rules in the NR system, the terminal device cannot find that there is a deviation between its own frequency and the actual frequency. There will also be a frequency deviation in the subsequent determination of the operating frequency of the terminal device, which may affect the performance of the communication between the network device and the terminal device

Method used

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  • Signal sending and receiving method and device

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Embodiment Construction

[0071] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0072] In the following, some terms used in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.

[0073] 1) Terminal equipment, including equipment that provides voice and / or data connectivity to users, for example, may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal device may communicate with the core network via a radio access network (radio access network, RAN), and exchange voice and / or data with the RAN. The terminal equipment may include user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit),...

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Abstract

Signal sending and receiving methods and devices are used for improving the accuracy of frequency offset adjustment of a terminal device. The signal sending method comprises: a network device determining an SSB and indication information, the indication information being used for indicating that a frequency position of the SSB is one of a frequency set, and the frequency set comprising a first frequency and a second frequency, or the first frequency, the second frequency and a third frequency; and the network device sending the SSB and the indication information to a terminal device.

Description

[0001] This application claims the priority of a Chinese patent application filed with the China Patent Office on December 18, 2017, with the application number 201711366520.4, and the title of the application is "A Method and Device for Signal Transmission and Reception", the entire contents of which are incorporated herein by reference. Applying. technical field [0002] The present application relates to the technical field of communications, and in particular to a signal sending and receiving method and device. Background technique [0003] In the new air interface (new radio, NR) technology in the fifth generation mobile communication system (the fifth generation, 5G), a synchronization signal / physical broadcast channel block (SSB) is defined, in the time domain Above, one SSB occupies 4 consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols. In the frequency domain, an SSB occupies 240 consecutive subcarriers, the 240 subcarriers are numbered from 0 to ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L27/26
CPCH04L5/0008H04L5/001H04L5/0048H04L5/0094H04L27/2657H04L27/2672H04L27/26H04W56/00H04L5/0007H04L5/0064H04L5/0053H04L1/0061H04W56/001H04W72/0453H04W72/30
Inventor 郭志恒谢信乾吴茜费永强毕文平宋兴华
Owner HUAWEI TECH CO LTD