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Method for acquiring system message, user equipment and base station

A system message and user equipment technology, applied in the communication field, can solve problems affecting PBCH transmission performance, etc.

Active Publication Date: 2019-01-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in LTE release 12 and later versions, a new carrier type (New Carrier Type, NCT) will be introduced. The NCT can be a non-backward compatible carrier, and can only carry a single-antenna port CRS, and the single-antenna port CRS can only Carried on part of the bandwidth, compared to the CRS on the backward compatible carrier, it will affect the transmission performance of PBCH

Method used

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  • Method for acquiring system message, user equipment and base station
  • Method for acquiring system message, user equipment and base station
  • Method for acquiring system message, user equipment and base station

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Embodiment Construction

[0117] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0118] figure 1 A schematic flowchart of a method for obtaining system information provided by an embodiment of the present invention, including:

[0119] 11: The user equipment detects a downlink control channel, which carries downlink control information (Downlink Control Information, DCI), and the DCI format corresponding to the downlink ...

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Abstract

The invention provides a method for acquiring a system message, user equipment and a base station. The method comprises the steps that the user equipment detects a downlink control channel, wherein the downlink control channel bears downlink control information (DCI), a DCI format corresponding to the downlink control channel comprises a first information domain, and the first information domain is used for indicating a system message; and the user equipment acquires the system message according to the DCI borne on the detected downlink control channel. The embodiment of the invention can improve the acquisition performance of the system message.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method for acquiring system information, user equipment and a base station. Background technique [0002] In the Long Term Evolution (LTE) system, a radio frame includes 10 subframes, each subframe includes two time slots, and a time slot includes seven Orthogonal Frequency Division Multiplex (OFDM) , OFDM) symbols, when the cyclic prefix is ​​extended, one slot includes 6 OFDM symbols. A base station (evolved NodeB, eNB) performs scheduling in units of a physical resource block pair (Physical Resource Block pair, PRBpair). A PRB pair occupies one subframe in time and 12 OFDM subcarriers in frequency. [0003] In LTE releases 8-11, system information is acquired from a Physical Broadcasting Channel (Physical Broadcasting Channel, PBCH), and the PBCH may rely on a Common Reference Signal (Common Reference Signal, CRS) for transmit diversity. However, in LTE release 12 and la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/08H04L1/00
CPCH04W48/08
Inventor 成艳薛丽霞
Owner HUAWEI TECH CO LTD
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