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TDD schema channel data transmission method and a base station

A channel transmission and channel technology, which is applied in the field of communication, can solve the problem of high signaling overhead and achieve the effect of reducing signaling overhead and avoiding large signaling overhead

Active Publication Date: 2009-03-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0008] An embodiment of the present invention provides a method for transmitting uplink channel data in TDD mode and a corresponding base station, and a method for transmitting data in a downlink channel in TDD mode and a corresponding base station, so as to solve the problem of channel data in TDD mode in the prior art During transmission, the signaling overhead required to obtain channel quality information is relatively large

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  • TDD schema channel data transmission method and a base station
  • TDD schema channel data transmission method and a base station
  • TDD schema channel data transmission method and a base station

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Embodiment Construction

[0033] The embodiment of the present invention provides a downlink channel data transmission method in TDD mode and a corresponding base station, as well as a TDD mode uplink channel data transmission method and a corresponding base station, so as to realize the TDD mode on the channel Data is transmitted, and the signaling overhead required to obtain the channel quality of the TDD mode is effectively reduced.

[0034] see figure 1 , the method that the embodiment of the present invention provides, comprises:

[0035] S101. Acquire uplink channel quality information or downlink channel quality information.

[0036] S102. Determine downlink channel quality information according to the uplink channel quality information; or, determine uplink channel quality information according to the downlink channel quality information.

[0037] S103. Assemble an uplink data packet according to the quality information of the uplink channel, and transmit the uplink data packet through the up...

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Abstract

The invention discloses a down channel data transmission method of a TDD mode and a corresponding base station, and an up channel data transmission method of the TDD mode and a corresponding base station, which are used for solving the problem that the signaling cost needing to obtain the channel quality information is larger when the channel data transmission of the TDD mode is performed by the prior art. The down channel data transmission method of the TDD mode provided by the invention comprises the following steps: the up channel quality information is obtained; the down channel quality information is determined according to the up channel quality information; according to the down channel quality information, a down data packet is assembled, and the down data packet is transmitted by a down channel. The invention is used for the channel data transmission of the TDD mode, and can effectively lower the signaling cost needing to obtain the channel quality information during the channel data transmission of the TDD mode.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a channel data transmission method in a time division duplex (TDD) mode and a base station. Background technique [0002] The Long Term Evolution (LTE) system is currently the standard being formulated by 3GPP. Its physical layer adopts Orthogonal Frequency Division Multiplex (OFDM, Orthogonal Frequency Division Multiplex) technology, and the dedicated channel is removed. All users share physical resources, and the base station is responsible for resources distribute. [0003] In the LTE system, the physical layer frequency domain resource is divided into a certain number of frequency subbands, and each subband includes a certain number of orthogonal subcarriers. A frequency subband is also called a basic resource unit (PRB, Physical Resource Block), which is a basic unit of resource allocation, and a base station scheduler can allocate one or more PRBs to the same user. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04Q7/22H04Q7/30H04W72/54
Inventor 高卓李国庆谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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