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Method for completing random access response transmission in radio communication system and base station

A random access response, wireless communication system technology, applied in the field of communication, to reduce waste of resources and improve utilization

Inactive Publication Date: 2009-06-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The technical problem to be solved by the present invention is to provide a method and a base station for sending random access responses in a wireless communication system, to solve the problem of sending random access responses when an uplink component carrier corresponds to multiple downlink component carriers, and to improve system resource utilization. Utilization

Method used

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  • Method for completing random access response transmission in radio communication system and base station
  • Method for completing random access response transmission in radio communication system and base station
  • Method for completing random access response transmission in radio communication system and base station

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Such as Figure 5 As shown, it is assumed that in the FDD mode of the LTE-A system, there are two downlink component carriers, and the bandwidth of each downlink component carrier is 20 MHz. In the figure, the blank filled part of the downlink component carrier indicates the synchronization channel, the vertical line filled part indicates the broadcast channel, and the left oblique line filled part indicates the random access response issued by the base station. There are two uplink component carriers, and the bandwidth of each uplink component carrier is 20MHz.

[0052] The broadcast channel in the downlink component carrier 1 broadcasts the following information (not limited to the following information):

[0053] 1) Frequency location information and bandwidth of uplink component carrier 1.

[0054] 2) Configuration parameters of the physical random access channel on the uplink component carrier 1.

[0055] Among them, the configuration parameter of some specific ...

Embodiment 2

[0063] Such as Figure 6 As shown, it is assumed that in the FDD mode of the LTE-A system, there are five downlink component carriers, and the bandwidth of each downlink component carrier is 20 MHz. In the figure, the blank filled part of the downlink component carrier indicates the synchronization channel, the vertical line filled part indicates the broadcast channel, and the left oblique line filled part indicates the random access response issued by the base station. There are two uplink component carriers, and the bandwidth of each uplink component carrier is 20MHz.

[0064] The broadcast channels in downlink component carriers 1, 2, and 3 broadcast the following information (not limited to the following information):

[0065] 1) Frequency location information and bandwidth of uplink component carrier 1;

[0066] 2) Configuration parameters of the physical random access channel on the uplink component carrier 1, wherein:

[0067] Some specific physical random access cha...

Embodiment 3

[0077] Such as Figure 7 As shown, it is assumed that in the FDD mode of the LTE-A system, there are five downlink component carriers, and the bandwidth of each downlink component carrier is 20 MHz. In the figure, the blank filled part of the downlink component carrier indicates the synchronization channel, the vertical line filled part indicates the broadcast channel, and the left oblique line filled part indicates the random access response issued by the base station. There are two uplink component carriers, and the bandwidth of each uplink component carrier is 20MHz.

[0078] The broadcast channels in downlink component carriers 1, 2, and 3 broadcast the following information (not limited to the following information):

[0079] 1) Frequency location information and bandwidth of uplink component carrier 1.

[0080] 2) Configuration parameters of the physical random access channel on the uplink component carrier 1.

[0081] Among them: some specific physical random access ...

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Abstract

The invention discloses a method and a base station to finish random access response transmission in a wireless communication system; and the method includes as following: the base station broadcasts the configuration parameters of the same special physical random access channels on the same uplink member carrier wave to N downlink member carrier waves, transmits the random access response on the N downlink member carrier waves after receiving the physical random access precursor, wherein, N is a whole number which is bigger than zero. Utilizing the method to determine the downlink member carrier waves which transit the random access response can fully make use of the uplink and downlink member carrier waves resource, reduce resource waste, improve the utilization ratio of the system resource, and at the same time avoid generating excessive restrictions to the configuration of physical random access signal channel.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and a base station for completing random access response sending in a wireless communication system. Background technique [0002] The LTE-Advanced system (Long Term Evolution-Advanced for short, LTE-A system) is a next-generation evolution system of the LTE system, which aggregates several carriers to support higher bandwidth and obtain higher data rates. Each aggregated carrier is called a component carrier, such as figure 1 As shown, component carriers may be continuous or discontinuous. [0003] The downlink component carriers in the LTE-A system may have synchronization channels (including primary synchronization channels and secondary synchronization channels) and broadcast channels. Here, a broadcast channel on a "downlink component carrier" refers to a channel that carries broadcast messages of a certain carrier or several carriers or the entire cell. propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08H04B7/26
Inventor 郝鹏朱鹏喻斌
Owner ZTE CORP
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