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Synchronous signal block transmission method and communication device

A technology of synchronization signal and transmission method, which is applied in the directions of synchronization device, transmission path separation device, transmission path sub-channel allocation, etc., and can solve the problem that uplink signals or uplink channels cannot be used for transmission.

Active Publication Date: 2021-05-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, SSB is for downlink transmission. On the 4 OFDM symbols that transmit SSB, other RBs on the carrier can only transmit downlink signals or downlink channels, or do not transmit any signals, but cannot be used to transmit uplink signals or uplink channels.

Method used

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  • Synchronous signal block transmission method and communication device
  • Synchronous signal block transmission method and communication device
  • Synchronous signal block transmission method and communication device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0122]image 3 It is a flow chart of the transmission method of the synchronous signal block provided by the embodiment of the present application. This embodiment will be described by the transmission method of the synchronous signal block of the present application from the angle interacting from the network device and the terminal. In this embodiment, the resource position for transmitting SSB is mapped in the time domain. In the present application embodiment, if the following is not specified, the resource location is reflected in the time domain, and it is also understood that the resource location occupies 1 symbol on the time domain, that is, the SSB occupies 1 symbol on the time domain. It is also possible to understand that the resource location includes one symbol on the time domain. This embodiment includes:

[0123]101. The network device sends SSB to the terminal device in the resource location of the synchronous signal block SSB.

[0124]The resource location of the SSB incl...

Embodiment 2

[0163]In the above-described embodiments, the SSB is mapped in the time domain, in the present embodiment, the resource location for transmitting the SSB is mapped in the time domain. In the present application embodiment, if the following is not specified, the resource location is mapped in the time domain, and it is also understood that the resource location occupies 2 symbols on the time domain, that is, the SSB occupies 2 symbols on the time domain. The resource location includes two symbols on the time domain. In this embodiment, when the network device transmits SSB to the terminal device, the SSB is mapped to one resource location in the candidate resource location set of SSB, which is mapped in the time domain. It can also be understood as: SSB occupies 2 symbols. Accordingly, the terminal device is blindly detected in the candidate resource position of the SSB. The SSB includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broa...

Embodiment 3

[0200]Compared to the above-described Embodiments One and Embodiment, in the present embodiment, the resource location for transmitting SSB is mapped in the time domain. If the following is not specified, the resource location is mapped in the time domain, and it is also understood that the resource location occupies 4 symbols on the time domain, that is, the SSB occupies 4 symbols on the time domain; or the resource location in time domain Two symbols are included. In this embodiment, when the network device transmits SSB to the terminal device, the SSB is mapped to one resource location in the set of candidate resource locations of the SSB, and the resource location is mapped in the time domain. It can also be understood as: SSB occupies 4 symbols. Correspondingly, the terminal device receives the SSB at the resource location of the SSB. The SSB includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH; for a resou...

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Abstract

Embodiments of the present application provide a synchronization signal block transmission method and a communication device. The method includes: a network device sends an SSB to a terminal device at a resource location of the SSB, and the terminal device receives the SSB accordingly. In this process, the symbols included in the resource positions of the SSB and the uplink symbols in various self-contained time slot structures have no overlap as much as possible. This method can reduce the symbols included in the resource positions of the SSB and as many self-contained time slots as possible. The probability of collision of uplink symbols in the structure avoids cross-interference, so that reliable transmission can be supported in as many self-contained slot structures as possible.

Description

Technical field[0001]The present application relates to the field of communication technology, and more particularly to a transmission method and a communication device of a synchronous signal block.Background technique[0002]In the wireless communication system, the network device sends a synchronization signal block to the terminal device, and the terminal device implements synchronization with the network device according to the SSB. The SSB may include a primary synchronization signal (PSS), a secondary synchronization, SSS, and Physical Broadcast Channel, PBCH.[0003]When the network device sends an SSB to the terminal device, the SSB is mapped to a time-frequency resource for a particular size. In a feasible design, the time-frequency resource of this particular size takes up 20 resource blocks (RB) on the frequency domain, and 4 orthogonal frequency divisionmultiplexing, OFDM symbols are occupied on the time domain. . Among them, a continuous 12 subcarriers are included in each...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048H04L5/0008H04L5/0007H04L27/26025H04W56/0015H04W56/001H04W72/0446H04W72/0453H04W72/30
Inventor 刘哲唐浩彭金磷周国华
Owner HUAWEI TECH CO LTD