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A systematic message transmitting method and its implementation device

A technology of system messages and system message blocks, applied in transmission systems, electrical components, wireless communications, etc., can solve problems such as high transmission power, affecting transmission effects, waste of system resources, etc., and achieve the effect of saving system resources

Active Publication Date: 2011-08-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, although the variable part of the system message can be sent by the UE to send a random access channel request signal to control the on and off of the system message transmission, but the system message The transmission is still aimed at all UEs in the cell, rather than those UEs that initiated the request. Therefore, from the perspective of cell coverage, only a relatively conservative method can be used for sending the requested system information, that is, to make the cell All UEs within the coverage area can receive the sent system messages. In this way, a lower transmission level, a common coding method, a larger transmission power, etc. may be selected, which will not only cause a waste of system resources , will also affect the sending effect

Method used

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  • A systematic message transmitting method and its implementation device
  • A systematic message transmitting method and its implementation device

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Embodiment Construction

[0019] The basic idea of ​​the present invention is: the UE requests the base station to send system information by sending a specific preamble sequence, the base station determines the scheduling information of the requested system information according to the received preamble sequence, and notifies the determined scheduling information to the requesting UE, and initiates The requesting UE then goes to the indicated transmission location to receive the system message it needs according to the received system message scheduling information.

[0020] Here, the specific preambles are some preambles reserved by the system for the UE to request system messages. The system message requested by the UE is a variable part system message.

[0021] In the present invention, for the sending of the system message, the static part of the system message is always broadcast and sent at a fixed location in a fixed transmission format, for example: using the transmission format of Quadrature ...

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Abstract

The invention discloses a transmission method of system information, which comprises that: the user equipment requests a base station to send system information by sending specific leader sequence; the receiving base station determines and sends scheduling information of the requested system information according to the received leader sequence; the user equipment receives system information thatis required by the user equipment from the indicated transmission position according to the received scheduling information of system information. The invention also discloses a user equipment and a base station; by adopting the method of the invention and the device thereof, link self-adapting of sending system information can be realized, thereby saving system resource.

Description

technical field [0001] The invention relates to the message transmission technology in the mobile communication system, in particular to a system message transmission method and its realization device. Background technique [0002] With the continuous development of the third generation (3G) mobile communication technology, the Third Generation Partnership Project (3GPP) organization proposed a new generation of long-term evolution (LTE, Long Term Evolution) system in 2004, in order to realize the transition from 3G technology to B3G (Beyond 3G) and 4G smooth transition. In the LTE system, the system message transmitted in the broadcast channel (BCH) is divided into a static part and a variable part, wherein, the size of the system message in the static part is fixed, and is sent with a fixed modulation and coding scheme at a designated time-frequency resource location; The variable part of the system message is mapped to the downlink shared physical resource, and can share...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W72/12
CPCH04W72/12
Inventor 蒋海林毕海洲
Owner DATANG MOBILE COMM EQUIP CO LTD
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