Method and equipment for transmitting message 3

A transmission method and technology of terminal equipment, applied in the field of communication, can solve problems such as increasing random access experiments, and achieve the effects of enhancing coverage, improving processing efficiency, and reducing delay

Inactive Publication Date: 2012-06-27
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0032] The embodiment of the present invention provides a message3 transmission method and device, which solves the problem that the message3 transmission mechanism in the existing technical solution will increase the experiment of random access

Method used

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  • Method and equipment for transmitting message 3
  • Method and equipment for transmitting message 3
  • Method and equipment for transmitting message 3

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Embodiment Construction

[0052] As mentioned in the background, the LTE system has been selected by many operators as the main solution of beyond 3G, which means that the application scenarios, deployment scenarios and spectrum allocation of LTE are more complicated, far beyond the assumptions made in the initial discussion of the LTE standard. Although LTE-A introduces many new technologies, they are mainly used to solve the problems of high speed and high spectrum efficiency. However, in the actual network deployment process, network coverage is a more difficult problem. In the initial stage of network deployment, the LTE system may work at frequencies higher than 2G and 3G. This means that the LTE system has greater propagation loss than the 3G system, and more base stations need to be deployed to meet the LTE coverage. Adding base stations requires a lot of time and financial resources to negotiate with the owner, which is not conducive to the rapid deployment and operation of LTE networks. More...

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Abstract

The embodiment of the invention discloses a method and equipment for transmitting a message 3. By the technical scheme provided by the embodiment of the invention, terminal equipment transmits the message 3 to a base station in a transmission time interval bundling (TTI bundling) way, so the coverage of the message 3 is expanded under the condition of no increase in the deployment of the base station to save the cost of base station construction, and the time delay of random access is reduced to improve the processing efficiency of the random access process.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a message3 transmission method and equipment. Background technique [0002] Random access (Random Access, RA) is a necessary process for establishing a wireless link between a terminal and a network. Only after the random access process is completed, eNodeB (evolved Node B, ie, eNB) and UE (User Equipment, user equipment, ie, terminal equipment) may perform regular data transmission and reception. [0003] Random access is divided into: contention random access process and non-competition random access process. [0004] Wherein, the contention random access process means that the eNodeB does not allocate a special preamble (preamble) code to the UE, but the UE randomly selects a preamble code and initiates random access. Competitive random access is applicable to RRC (Radio Resource Control, radio resource control) connection establishment, RRC connection re-esta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
Inventor 徐婧潘学明沈祖康许芳丽
Owner CHINA ACAD OF TELECOMM TECH
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