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Method for collocating transformat combination parameter of TDD-CDMA system

A combination of transmission formats and code division multiple access technology, applied in the field of data transmission, can solve problems such as inconsistent CTFC code lengths and one more CTFC

Inactive Publication Date: 2011-09-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This means that according to the protocol, when the RNC sends the same number of CTFCs to the UE and the NodeB, if the RNC uses the same configuration data for the Node B and the UE, the number of CTFCs on the UE side will increase by 1. As a result, the number of CTFCs and the encoding length of the TFCI codewords are inconsistent, and there is no solution to this problem in the current protocol and prior art solutions

Method used

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Embodiment 1

[0041] The CTFC parameter and sequence sent by the RNC to the Node B and the UE are the same, and the Node B and the UE process the parameter in the same way, so that the TFCS stored in the Node B and the UE is also the same. For this reason, it is necessary to modify the protocol TS 25.433, regarding the processing method of the CTFC parameter received by the Node B from the RNC, that is, adopting the same method as the UE processing the parameter. Specifically include the following steps:

[0042] RNC sends the same CTFC parameters and sequences to Node B and UE.

[0043] After the UE receives the CTFC parameters, the processing method is consistent with the current protocol, that is, the UE receives the first CTFC parameter from the RNC as TFCI=1, the second CTFC parameter as TFCI=2, and so on, namely: { CTFC i}, i=1, 2, ... n, corresponding to {TFCI i}, i=1, 2, . . . n. The CTFC parameters corresponding to TFCI=0 are configured by default by the UE and are reserved for ...

Embodiment 2

[0050] The implementation mode is similar to the first method, but compared with the 3GPP protocol, the UE's processing method for CTFC parameters is modified to be consistent with the Node B's processing method. Specifically, the CTFC parameter and sequence sent by the RNC to the Node B and the UE are the same, and the Node B and the UE process the parameter in the same way, so that the TFCS stored in the Node B and the UE is also the same. For this reason, it is necessary to modify the protocol TS 25.331, regarding the processing method of the parameter after the UE receives the CTFC parameter from the RNC, that is, the processing method of the parameter is exactly the same as that of the Node B. Specifically include the following steps:

[0051] RNC sends the same CTFC parameters and sequences to Node B and UE.

[0052] After Node B receives the CTFC parameter, the processing method is consistent with the current protocol, that is: Node B receives the first CTFC parameter ...

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Abstract

The present invention discloses time division duplexing code division multiple access system transmission format combination parametric configuring method. It contains wireless networks controller transmitting same calculation transmission format combination parameter and sequence to node B and user terminal, configuring same transmission format combination indication word length to node B and user terminal, node B and user terminal receiving calculation transmission format combination parameter, according to same mode processing said parameter to form transmission format combination set, said method capable of avoiding TFCS data collocation incongruous status in current technology, wireless network controller not needing different configuration to user terminal and node B, said implementation method being portably, effectively and reducible error occurrence.

Description

technical field [0001] The present invention relates to the data transmission technology in the third generation mobile communication system, especially the Radio Network Controller (Radio Network Controller, RNC), Node B (NodeB) and User Equipment (User Equipment) in the Time Division Duplex Code Division Multiple Access communication system , a configuration method in which the transport format combination parameter and the transport format combination indicator length are coordinated and consistent between UEs. Background technique [0002] Code Division Multiple Access (CDMA) is currently recognized as the mainstream technology of the third-generation mobile communication system, which includes two Frequency Division Duplex (FDD) technologies and a Time Division Duplex (Time Division Duplex) technology. Division Duplex, TDD) technology. [0003] In the 3GPP (3rd Generation Partnership Project) specification, the transport channel is used to carry data transmission servi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 马志锋马子江张银成张军周天才
Owner ZTE CORP
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