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A signal sending method and terminal

A sending method and signal technology, which is applied in the field of communication, can solve the problems of reduced available resources, multi-time domain symbols, and long occupied time, and achieve the effects of reducing occupied time, increasing available resources, and reducing delay

Active Publication Date: 2022-04-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For NRV2X, the number of synchronous subframes may increase, but in order to ensure sufficient time for service transmission, the number of synchronous subframes will also be very limited
[0009] In addition, in order to expand the coverage of synchronization signals, it may be necessary to perform time-domain repetition of S-PSS and S-SSS signals, which will occupy more time-domain symbols. Therefore, if the mechanism of R14 continues to be multiplexed, each Slot Can only carry one SSB block
There is only one SSB in each Slot, which will lead to a longer time taken for SSB beam scanning, so that the time available for service transmission on Sidelink will become shorter, affecting the timeliness and available resources of service transmission on Sidelink , resulting in an increase in the delay of service transmission on Sidelink and a decrease in available resources

Method used

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  • A signal sending method and terminal
  • A signal sending method and terminal
  • A signal sending method and terminal

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Embodiment Construction

[0037] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0038]The embodiment of the present invention proposes a method for sending synchronous broadcast information, which is used to send synchronous and broadcast signals in a wireless channel, which reduces the time occupied by beam scanning and reserves more time for service transmission.

[0039] Such as figure 2 As shown, the embodiment of the present invention provides a signal sending method, including:

[0040] Step 21, in each time slot o...

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Abstract

The invention discloses a signal sending method and a terminal. The signal sending method includes: sending a synchronization signal block SSB in each time slot of a group of time slots; each time slot includes at least two SSBs, each of which The secondary synchronization signal SSS and the demodulation reference signal DMRS in the SSB are frequency division multiplexed on at least one OFDM symbol; the SSB is a combined block of the primary synchronization signal PSS, the secondary synchronization signal SSS and the physical broadcast channel PBCH. The solution of the present invention accommodates more SSBs in one Slot, thereby reducing the time occupied by beam scanning.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a signal sending method and a terminal. Background technique [0002] In the 5G NR (NR Radio Access, new wireless access technology) V2X system, PC5 port (Sidelink, direct link) is used for direct communication between terminals. Before the business data is transmitted, it is first necessary to establish synchronization between the two communicating terminals at the PC5 port. The method of establishing synchronization is that one terminal A sends synchronization and broadcast signals, and another terminal B receives the synchronization and broadcast signals sent by terminal A. Once terminal B receives and demodulates successfully, the two terminals can establish synchronization, which is the next step. Communication is ready. [0003] The synchronization signal of the NR UU port is carried by an SSB block (Synchronization Signal Block, synchronization signa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048H04L5/0007H04L5/00
Inventor 任晓涛郑方政赵锐
Owner DATANG MOBILE COMM EQUIP CO LTD
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