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Downlink synchronization method and device

A technology for synchronizing signals and network equipment, which is applied in the field of communication and can solve problems such as large resource overhead

Active Publication Date: 2020-12-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission and reception point (Transmission and ReceptionPoint, TRP) needs to carry the indication information of the time position in the SS block to inform the terminal of the time position of the SS block. If all the indication information is displayed and carried in the SS block, it will cause a large resource overhead

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  • Downlink synchronization method and device
  • Downlink synchronization method and device
  • Downlink synchronization method and device

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Embodiment Construction

[0082] Hereinafter, some terms in this application will be explained in order to understand:

[0083] Network device: also known as a radio access network (Radio Access Network, RAN) equipment, a wireless terminal device to access the network, may be a Global System for Mobile Communications (Global System of Mobilecommunication, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) base station (BaseTransceiver Station, referred to as BTS), may also be a wideband code division multiple (wideband Code DivisionMultiple Access, WCDMA) base station (NodeB, NB), also may be a long term evolution ( Long TermEvolution, LTE) evolved base station in (Evolutional Node B, eNB, or an eNodeB), or a relay station or an access point or base station 5G network, such as sending and receiving points (transmission and reception point, TRP), the controller , which is not defined.

[0084] Terminal: it may be a wireless terminal may be a wired terminal, a wireless terminal may r...

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Abstract

Embodiments of the present application provide a downlink synchronization method and device. The network device generates the frame number of each wireless frame in each wireless frame according to the frame number of each wireless frame in the transmission cycle of the synchronization signal array set, and the time index number of the synchronization signal block in each wireless frame. Synchronization signal block; the transmission period includes two consecutive wireless frames; the synchronization signal array set includes M synchronization signal blocks; then two consecutive wireless frames are sent to the terminal, wherein one wireless frame includes a part of the synchronization signal array set signal blocks, another part of the synchronization signal blocks in the synchronization signal array set is included in another radio frame. Two consecutive wireless frames include synchronization signal blocks, and the synchronization signal blocks in different wireless frames are different. The frame numbers of different wireless frames can be indicated by the synchronization signal blocks in different wireless frames, and the frame numbers of different wireless frames can also be indicated by different synchronization signal blocks. to indicate the time index numbers of different synchronization signal blocks, which saves the resources required to indicate the time positions of the synchronization signal blocks.

Description

Technical field [0001] Synchronization method and apparatus of the present application relates to communication technologies, and in particular, to a downlink embodiment. Background technique [0002] Terminal access cell, the first cell search, and downlink synchronization. In this process, the terminal of the synchronization signal (Synchronization Signal, SS) is detected, and the physical broadcast channel (Physical LayerBroadcast Channel, PBCH) decodes the obtained critical system parameter information. Wherein the synchronization signal comprises a primary synchronization signal (Primary Synchronization Signal, PSS) and a secondary synchronization signal (SecondarySynchronization Signal, SSS). [0003] In the LTE (Long Term Evolution, LTE) communication system, PSS and SSS are occupied by six consecutive resource blocks (Resource Block, RB), and arranged fixed-frequency resource allocation in a radio frame. In the new wireless (NewRadio, NR) communication system, synchroniza...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W72/04H04J11/00
CPCH04J11/0069H04W56/0015H04W72/0446H04W72/23H04J11/00H04W56/00H04W72/04
Inventor 袁璞刘瑾罗俊
Owner HUAWEI TECH CO LTD