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Synchronization method, base station and terminal

A base station and terminal technology, applied in the field of communication, can solve the problems of not giving the transmission of the main synchronization signal and affecting the synchronization performance of the terminal, so as to achieve the effect of improving the synchronization performance

Inactive Publication Date: 2017-04-12
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the prior art does not provide where on the NCT carrier to transmit the primary synchronization signal (Primary Synchronization Signal, PSS) and the secondary synchronization signal (Second Synchronization Signal, SSS), thus affecting the synchronization performance of the terminal

Method used

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  • Synchronization method, base station and terminal
  • Synchronization method, base station and terminal
  • Synchronization method, base station and terminal

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Embodiment Construction

[0025] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0026] The technical solution of the present invention can be applied to various wireless communication systems, for example, a Long Term Evolution (LTE for short) system and the like.

[0027] The base station may be a network element such as an evolved base station (Evolved NodeB, eNB for short) in the LTE system.

[0028] In addition, the term "and / or" in...

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Abstract

The embodiment of the invention provides a synchronization method, base station and terminal. A first transmission position of a PSS and a second transmission position of an SSS on a NCT carrier wave are determined, the first transmission position is a transmission position of the SSS on a non-NCT carrier wave, and the second transmission position is a transmission position of the PSS on the non-NCT carrier wave, so that the PSS is emitted at the first transmission position on the NCT carrier wave, the SSS is emitted at the second transmission position on the NCT carrier wave, and the terminal supporting the NCT carrier wave performs synchronization on the NCT carrier wave according to the PSS and the SSS. Only the terminal supporting the NCT carrier wave (namely the NCT carrier wave terminal) can receive the PSS and the SSS accurately, the terminal which does not support the NCT carrier wave (namely the non-NCT carrier wave terminal, also can be called an Iegacy terminal) can not receive the PSS and the SSS accurately, so that the NCT carrier wave terminal performs the synchronization immediately, and the Iegacy terminal does not need to perform the synchronization, and synchronization performance of the terminals is improved.

Description

technical field [0001] The present application relates to communication technology, in particular to a synchronization method, a base station, and a terminal. Background technique [0002] In a wireless communication system such as a Long Term Evolution (Long Term Evolution, LTE) system, carrier aggregation has been used as a method for extending system bandwidth. In carrier aggregation mode, multiple carriers can serve one terminal, and each carrier is also called a component carrier. The prior art also introduces a new carrier type (New Carrier Type, NCT), or may also be called an additional carrier type (Additional Carrier Type, ACT), which is not limited in this embodiment. The NCT carrier cannot carry part of the control signaling in LTE, but can carry a cell-specific reference signal (Cell-specific Reference Signal, CRS), and the CRS is only transmitted on port 0. [0003] However, the prior art does not provide where on the NCT carrier the primary synchronization si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
Inventor 李亚娟张兴炜
Owner HUAWEI TECH CO LTD
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