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Method and device for sending and receiving synchronization signal block group in unlicensed spectrum, storage medium, base station and user equipment

An unlicensed spectrum and synchronization signal technology, which is applied in the direction of synchronization devices, devices dedicated to receivers, pilot signal distribution, etc., can solve the problem of delayed transmission of synchronization signal blocks, achieve multiple transmission opportunities, save signaling overhead, The effect of improving communication quality

Active Publication Date: 2019-11-19
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

[0006] However, due to the need for LBT, when the channel status is detected to be busy, the synchronization signal block needs to be sent later

Method used

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  • Method and device for sending and receiving synchronization signal block group in unlicensed spectrum, storage medium, base station and user equipment
  • Method and device for sending and receiving synchronization signal block group in unlicensed spectrum, storage medium, base station and user equipment
  • Method and device for sending and receiving synchronization signal block group in unlicensed spectrum, storage medium, base station and user equipment

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Embodiment Construction

[0051] As mentioned in the background, in the prior art, since LBT is required, the transmission of the synchronization signal block needs to be delayed for a certain period of time. In order to support the feature of deferred transmission of the synchronization signal block on the unlicensed spectrum, the synchronization signal block needs to have multiple predefined positions. How to design multiple predefined locations of synchronization signal blocks on unlicensed spectrum is an urgent problem to be solved.

[0052] In the technical scheme of the present invention, there are multiple available inter-group positions for the base station to send the synchronization signal block group in the sending window; when the time length of the sending window is constant, the preset time intervals are different, and the number of inter-group positions in the sending window And the intervals between positions between groups are different, so that signaling overhead can be saved when the...

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Abstract

The invention discloses a method and device for sending and receiving a synchronization signal block group in an unlicensed spectrum, a storage medium, a base station and user equipment. The sending method comprises the following steps: carrying out pre-sending monitoring before a synchronization signal block group is sent at an inter-group position corresponding to a first inter-group index in asending window, wherein the sending window comprises a plurality of inter-group positions, the inter-group indexes corresponding to the plurality of inter-group positions are arranged in sequence, a preset time interval exists between every two inter-group positions, and the time length of the preset time interval is at least the time length occupied by the synchronization signal block group; if it is monitored that the channel is in an idle state, sending a synchronization signal block group at an inter-group position corresponding to the first inter-group index; and sending the first inter-group index or the first inter-group index and the intra-group index to user equipment. According to the technical scheme of the invention, the problem of how to send and receive the synchronization signal block group under the condition that the synchronization signal block group has a plurality of predefined inter-group positions in the unlicensed spectrum is solved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for sending and receiving synchronization signal block groups in unlicensed spectrum, a storage medium, a base station, and user equipment. Background technique [0002] In the fifth-generation mobile communication technology (5th-Generation, 5G) system, synchronization signals and broadcast channels are sent in the form of synchronization signal blocks, and a beam scanning function is introduced. A primary synchronization signal (Primary Synchronization Signal, PSS), a secondary synchronization signal (Secondary Synchronization Signal, SSS) and a physical broadcast channel (Physical Broadcast Channel, PBCH) are in a synchronization signal block (SS / PBCH block). Each synchronization signal block can be regarded as a beam (analog domain) resource in a beam sweeping process. Multiple synchronization signal blocks form a synchronization signal b...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L1/00H04W56/00H04J3/06
CPCH04L5/0053H04L5/0048H04L5/0005H04L1/0038H04W56/001H04J3/0658
Inventor 周化雨陶雨婷周欢沈兴亚
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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