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A synchronization signal sending method, receiving method, network equipment and terminal equipment

A technology for synchronizing signals and network equipment, which is applied in the fields of signal processing, receiving methods, synchronizing signal sending methods, network equipment and terminal equipment, and can solve the problems of unable to cover all users at the same time, unable to determine narrow coverage beams, and narrow beams.

Active Publication Date: 2020-11-24
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this also leads to the narrowing of the beam, which cannot cover all users in the cell at the same time
Cell search based on multiple narrow coverage beams scanning is currently a research topic in 5G NR, but using multiple narrow coverage beams for cell search may exist even if the terminal device detects the primary synchronization signal (PSS) or secondary synchronization signal ( SSS), but it is also impossible to determine the problem of the corresponding narrow coverage beam

Method used

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  • A synchronization signal sending method, receiving method, network equipment and terminal equipment
  • A synchronization signal sending method, receiving method, network equipment and terminal equipment
  • A synchronization signal sending method, receiving method, network equipment and terminal equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An embodiment of the present invention provides a method for sending a synchronization signal, which is applied to a network device, and the network device at least supports sending a synchronization signal by using at least one narrow coverage beam, such as figure 1 shown, including:

[0032] Step 101: Determine the reference symbol resources in each transmission period, and the positions of the reference symbol resources in each transmission period are the same;

[0033] Step 102: Based on the position of the reference symbol resource, at least determine the first symbol resource and the second symbol resource occupied by each narrow coverage beam in each transmission period or in two adjacent transmission periods; wherein, the The positions of the first symbol resource and the second symbol resource in their respective transmission periods are the same or different;

[0034] Step 103: Send a synchronization signal based on the symbol resource corresponding to each n...

Embodiment 2

[0094] An embodiment of the present invention provides a synchronization signal receiving method, which is applied to terminal equipment, such as Figure 5 shown, including:

[0095] Step 501: Determine the reference symbol resources in each transmission period, and the positions of the reference symbol resources in each transmission period are the same;

[0096] Step 502: receiving two adjacent synchronization signals within one transmission period, or within two adjacent transmission periods, and obtaining the symbol difference between the two adjacent synchronization signals;

[0097] Step 503: Based on the position of the reference symbol resource and the symbol difference between the two adjacent synchronization signals, determine the symbol resource position where the narrow coverage beam or the wide coverage beam corresponding to the received synchronization signal is located .

[0098] Here, the synchronization signal may specifically be a synchronization signal of a...

Embodiment 3

[0141] An embodiment of the present invention provides a network device, such as Figure 7 As shown, the network device includes a signal sending unit 71, configured to at least support sending a synchronization signal by using at least one narrow coverage beam;

[0142] The network equipment also includes:

[0143] The processing unit 72 is configured to determine the reference symbol resource in each transmission period, and the position of the reference symbol resource in each transmission period is the same; based on the position of the reference symbol resource, at least determine that each narrow coverage beam is in The first symbol resource and the second symbol resource occupied in each transmission period or in two adjacent transmission periods; wherein, the positions of the first symbol resource and the second symbol resource in the respective transmission periods the same or different;

[0144] Correspondingly, the signal sending unit 71 is configured to send a sy...

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Abstract

The invention discloses a synchronization signal transmitting method, a receiving method, a network device and a terminal device. The method includes the following steps: determining the reference symbol resources in each transmission period, wherein the locations of the reference symbol resources in each transmission period are the same; at least determining a first symbol resource and a second symbol resource occupied by each narrow beam in each transmission period or two adjacent transmission periods based on the location of the reference symbol resources, wherein the locations of the firstsymbol resource and the second symbol resource in their respective transmission periods are the same or different; and transmitting a synchronization signal based on the symbol resources corresponding to each narrow beam.

Description

technical field [0001] The present invention relates to signal processing technology in the communication field, in particular to a synchronous signal sending method, receiving method, network equipment and terminal equipment. Background technique [0002] Large-scale antenna is a key technology of 5G new air interface, and 5G new air interface needs to support low frequency and high frequency. In the high-frequency band, in order to combat the large penetration loss and path loss (20-30dB greater than the low-frequency loss) and ensure coverage performance, it is necessary to use large-scale antennas (requiring 100 or even 1000 antenna elements) for beamforming to enhance coverage performance. However, this also leads to narrowing of the beam, which cannot cover all users in the cell at the same time. Cell search based on multiple narrow coverage beams scanning is currently a research topic in 5G NR, but using multiple narrow coverage beams for cell search may exist even ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/00H04W72/04
CPCH04L1/0027H04L5/0048H04W72/046
Inventor 王飞
Owner CHINA MOBILE COMM LTD RES INST