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A method, device and system for transmitting control information of enhanced uplink dedicated channel

A dedicated channel and enhanced uplink technology, which is applied in the field of transmission of enhanced uplink dedicated channel control information, can solve problems such as the inability to transmit 16QAM modulation information, the absence of E-DCH, and the inability to transmit constellation version index information, etc.

Inactive Publication Date: 2008-08-06
HUAWEI TECH CO LTD
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Problems solved by technology

[0020] The technical solution for transmitting E-DCH control information in the prior art meets the needs of the existing E-DPDCH for data transmission. However, the E-DPDCH proposed for RAN1 (Radio Access Network) adopts 16QAM (Quadrature Amplitude Modulation) modulation method According to the technical solution, the existing E-DPCCH that carries the control information required for demodulation and reception of E-DPDCH does not support 16QAM, that is, the existing technical solution for transmitting E-DCH control information cannot transmit 16QAM modulation information, and at the same time cannot Transmission of constellation version index information under 16QAM modulation mode
[0021] Therefore, there is currently no E-DCH control information transmission technology that can transmit 16QAM modulation information and constellation version index information

Method used

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  • A method, device and system for transmitting control information of enhanced uplink dedicated channel
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  • A method, device and system for transmitting control information of enhanced uplink dedicated channel

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Embodiment Construction

[0043] The technical solution of the embodiment of the present invention includes: carrying the modulation mode information in the E-DPCCH data frame and sending it. After receiving the data frame, the receiver determines the modulation mode of the E-DPDCH from the modulation mode information; uses the modulation mode information to demodulate the data information carried by the E-DPDCH; the modulation mode information may be a 16QAM modulation mode information.

[0044] The modulation mode information may be indicated by the size of the transport block in the E-TFCI information, that is, the receiver determines the specific use of modulation mode; the modulation mode information may also be directly carried in the E-DPCCH data frame, and the receiver determines the specific modulation mode to be used according to the specific information in the data frame. The modulation mode information may include: BPSK modulation, 16QAM modulation.

[0045]The embodiment of the present i...

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Abstract

The invention discloses a method for transmitting control information of enhanced uplink special channels, a device and a system. The method comprises the following steps that: modulation mode information is borne in an E-DPCCH data frame and sent; after a receiving party receives the data frame, the modulation mode information determines the modulation mode of the E-DPCCH; the modulation mode information is used to demodulate the data information borne by the E-DPCCH. The embodiment of the invention can also bear RSN information or E-DCH RV information used to indicate constellation version index information into the E-DPCCH data frame and send the E-DPCCH data frame; the receiving party uses the RSN information or the E-DCH RV information to determine the constellation version index information, and uses the constellation version index information to demodulate the data information borne by the E-DPDCH. The embodiment of the invention transfers the 160AM modulation mode information and the constellation version index information to the receiving party under the condition of not increasing the complexity of the hardware and not changing the definition of the prior RSN.

Description

technical field [0001] The present invention relates to the technical field of electronic communication, in particular to a method, device and system for transmitting enhanced uplink dedicated channel control information. Background technique [0002] With the rapid development of the third generation communication technology, many new technologies have emerged. Among them, HSDPA (High Speed ​​Downlink Packet Access) technology is a downlink wireless enhancement technology introduced in Release (version) 5 by 3GPP (Third Generation Partnership Project). HSDPA technology has key technologies such as link adaptive technology based on adaptive modulation and coding, HARQ (Hybrid Automatic Repeat Request) based on physical layer retransmission and soft combining, fast multi-user packet scheduling, and 2ms short frame. It has the advantages of high spectrum efficiency, high downlink transmission rate, and small transmission delay, so it can provide effective support for packet d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04L1/22H04L12/56H04L12/28H04L27/34
Inventor 刘晟余荣道
Owner HUAWEI TECH CO LTD
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