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A method for sending a synchronization reference signal, a method for receiving it, a base station, and a terminal

A reference signal and transmission method technology, applied in the receiving method, synchronous reference signal transmission method, base station and terminal fields, can solve the problems of inability to correctly analyze cell IDs, mutual interference, and inability to correctly receive PSS/SSS signals, etc., to achieve guaranteed Cell ID identification and cell discovery capabilities, the effect of reducing interference

Active Publication Date: 2021-08-06
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] Therefore, in the UDN scenario, the PSS / SSS signals sent by adjacent small stations use the same time-frequency resource location, which may cause serious mutual interference, so that the UE cannot correctly receive the PSS / SSS signals, and thus cannot correctly parse out Cell ID
[0017] And in view of the above problems, existing technical solutions, such as improving the detection capability of PSS / SSS signals by combining the energy of multiple cycles of PSS / SSS signals, may not work normally in UDN scenarios

Method used

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  • A method for sending a synchronization reference signal, a method for receiving it, a base station, and a terminal
  • A method for sending a synchronization reference signal, a method for receiving it, a base station, and a terminal
  • A method for sending a synchronization reference signal, a method for receiving it, a base station, and a terminal

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[0037] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0038] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The present invention provides a method for sending a synchronous reference signal, a method for receiving it, a base station, and a terminal. The present invention is based on synchronous reference signals of multiple groups of time-frequency patterns. Power boosting, data silence and other processing can effectively reduce the interference of neighboring cells on the synchronization reference signal sent by the cell, and ensure the cell ID identification and cell discovery capabilities of the cell in the UDN scenario.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for sending and receiving a synchronization reference signal, a base station and a terminal. Background technique [0002] In an existing Long Term Evolution (LTE, Long Term Evolution) system, a base station (eNB) periodically sends a synchronization reference signal including a Primary Synchronization Signal (PSS, Primary Synchronization Signal) and a Secondary Synchronization Signal (SSS, Secondary Synchronization Signal). By listening to the PSS and SSS sent by the base station, the terminal (UE) can establish a rough downlink time-frequency synchronization relationship, identify the cell ID, obtain wireless frame timing, and identify the TDD / FDD working system. [0003] In particular, the frequency domain structures of PSS and SSS signals are as figure 1 As shown, no matter how large the system bandwidth is, PSS and SSS always occupy 6 resource ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W56/00H04W72/04
CPCH04W28/0236H04W56/0015H04W72/0446H04W72/0453
Inventor 柯颋侯雪颖胡丽洁刘建军郑毅
Owner CHINA MOBILE COMM LTD RES INST