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Methods and apparatus for synchronizing signal transmission and reception

A technology of synchronization signal and transmission method, which is applied in the direction of synchronization device, wireless communication, electrical components, etc., and can solve the problem of not being able to support UE cell time information, etc.

Pending Publication Date: 2019-08-23
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the position of the SS in the unlicensed frequency band can be changed, so the method in the prior art cannot support the UE to obtain the time information of the cell

Method used

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  • Methods and apparatus for synchronizing signal transmission and reception
  • Methods and apparatus for synchronizing signal transmission and reception
  • Methods and apparatus for synchronizing signal transmission and reception

Examples

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Embodiment Construction

[0115] Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the drawings, in which the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present disclosure, and should not be construed as limiting the present disclosure.

[0116] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present disclosure refers to the presence of the stated features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. ...

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Abstract

The invention discloses a method and apparatusequipment for sending and receiving synchronous signals. The method comprises the following steps of: performing listen before talk (LBT) operation in a predefined time window; if the LBT operation is successful, sending an SSB in the time window; wherein the SSB comprises a synchronization signal SS, or the SSB comprises the SS and a physical broadcast channel PBCH. Compared with the prior art, the method and the apparatus device have the advantages that the time for implementing the LBT by the base station is relaxed, namely, the a base station is allowed to implement the LBT in the a predefined time window, and the SSB is sent after the LBT is successful, so that the data sending efficiency and the access performance of a communication system are remarkably improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a method and device for sending and receiving synchronization signals. Background technique [0002] In order to meet the huge traffic demand, the 5G communication system is expected to work on high frequency band resources from low frequency band to about 100G, including licensed frequency band and unlicensed frequency band. Among them, the unlicensed frequency band mainly considers the 5GHz frequency band and the 60GHz frequency band. We refer to the 5G system working in the unlicensed frequency band as the NR-U system, which can include scenarios that work independently on the unlicensed frequency band, and scenarios that work with the licensed frequency band through dual connectivity (DC, Dual connectivity). Including the scenarios of working with licensed frequency bands through carrier aggregation (CA, Carrier aggregation), such as figure 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00H04W74/08
CPCH04W56/00H04W74/0833
Inventor 王轶李迎阳吴敏张世昌
Owner BEIJING SAMSUNG TELECOM R&D CENT
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