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Random access method and equipment in multi-carrier system

A multi-carrier system and random access technology, applied in the field of communication, can solve problems such as no multi-carrier system

Active Publication Date: 2011-05-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] At present, there is no description of how the multi-carrier system performs random access and after failure in the LTE-A protocol

Method used

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  • Random access method and equipment in multi-carrier system
  • Random access method and equipment in multi-carrier system
  • Random access method and equipment in multi-carrier system

Examples

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Embodiment Construction

[0108] In order to solve the problems existing in the prior art, an embodiment of the present invention proposes a random access method in a multi-carrier system, which is applied to a system including multiple base stations and one MCE.

[0109] Such as image 3 As shown, it is a schematic flowchart of a random access method in a multi-carrier system proposed by an embodiment of the present invention, which specifically includes the following steps:

[0110] Step S301, when a terminal working on multiple carriers at the same time needs to initiate a random access process, the terminal selects a carrier from the multiple carriers it is working on according to the preset first carrier selection strategy, and initiates random access to the base station process.

[0111] In a specific application scenario, the implementation process of this step is specifically one of the following situations:

[0112] The terminal randomly selects a carrier among all currently available uplink...

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Abstract

The embodiment of the invention discloses a random access method and equipment in a multi-carrier system. The technical scheme proposed by the embodiment of the invention is applied to confirm that a treatment flow of a random access process can be issued in a plurality of uplink carriers in a mobile communication system by introducing the multi-carriers so as to issue random access treatment in the multi-carrier system.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular to a random access method and device in a multi-carrier system. Background technique [0002] In the Long Term Evolution Advanced (LTE-A) system, the peak rate requirement is much higher than that of the Long Term Evolution (LTE) system, and the peak rate requirement in the downlink direction needs to reach 1Gbps, while in The peak rate requirement in the uplink direction needs to reach 500Mbps. At the same time, the LTE-A system also requires good compatibility with the LTE system. [0003] The LTE-A system introduces a carrier aggregation (Carrier Aggregation, CA) technology based on the need to increase the peak rate, be compatible with the LTE system, and make full use of spectrum resources. [0004] The carrier aggregation technology refers to a technical solution that includes multiple component carriers (Component Carriers, CCs) in the upl...

Claims

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Application Information

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IPC IPC(8): H04W72/02H04W74/08
Inventor 刘佳敏许芳丽李国庆
Owner DATANG MOBILE COMM EQUIP CO LTD
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