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Method for realizing data transmission in DD multi-carrier system and device therefor

A multi-carrier system and data transmission technology, which is applied in communication between multiple stations, electrical components, wireless network protocols, etc., can solve problems such as the inability to realize multi-carrier system data transmission, and meet various needs and improve flexibility The effect of ensuring compatibility

Inactive Publication Date: 2010-07-07
CHINA ACAD OF TELECOMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention solves the problem that the frame structure configuration relationship cannot realize data transmission in a multi-carrier system when single-carrier data transmission is adopted

Method used

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  • Method for realizing data transmission in DD multi-carrier system and device therefor
  • Method for realizing data transmission in DD multi-carrier system and device therefor
  • Method for realizing data transmission in DD multi-carrier system and device therefor

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Embodiment Construction

[0026] The basic idea of ​​the present invention is to establish a two-dimensional uplink and downlink frame structure configuration relationship in the frequency domain and time domain based on the capabilities of the user terminal, and notify the user terminal so that the base station and the user equipment can communicate based on the two-dimensional frame structure The service is sent and received on the time-frequency resources assigned and scheduled by the configuration relationship, thereby ensuring the compatibility with the existing LTE system in multi-carrier service data transmission, and greatly improving the flexibility of the TDD mode in the multi-carrier system.

[0027] It should be noted that, in the embodiment of the present invention, the two-dimensional uplink and downlink frame structure configuration relationship means that both the time domain and the frequency domain are considered when allocating uplink and downlink resources on a subframe; hereinafter r...

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Abstract

The invention relates to a method for realizing data transmission in a TDD multi-carrier system and a device therefor, wherein the method comprises: acquiring capability information of a user terminal; setting a frame structure configuration relationship at the frequency domain and the time domain according to the capability information of the user terminal; and sending an indication signaling to the user terminal and informing the user terminal of business data sending and receiving by adopting the new frame structure configuration relationship. With the adoption of the method and the device, the compatibility of the multi-carrier business data transmission and the existing LTE system can be ensured, and the flexibility of TDD mode in the TDD multi-carrier system can be greatly improved; in addition, the frame structure configuration relationship between an upper line and a lower line can be established due to the capability that the user terminal supports the business, the data volume, the transmitting power, the time delay and the like of the multi-carrier system, so as to send and receive the business data and well support the multi-aspect requirements of the LTE multi-carrier system.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and device for realizing data transmission in a TDD multi-carrier system. Background technique [0002] In the existing LTE (Long Term Evolution, Long Term Evolution) system, a single carrier resource is usually used for data transmission; in the TDD (Time Division Duplex, Time Division Duplex) mode, the base station adopts the frame structure configuration specified in the LTE carrier, and agree with the user terminal on the configuration relationship of uplink and downlink subframes, as shown in Table 1, where D represents a downlink subframe, S represents a special subframe, and U represents an uplink subframe; and, for different base station cells, different The frame structure configuration relationship. [0003] Table 1 [0004] [0005] However, in an LTE multi-carrier system, there may be multiple carrier resources between the base station and t...

Claims

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Application Information

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IPC IPC(8): H04W80/00H04B7/26
Inventor 喻晓冬林亚男肖国军潘学明
Owner CHINA ACAD OF TELECOMM TECH
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