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Method for transmitting TFCI data and TD-SCDMA trunking communication system

A technology of combining data and transmission formats, applied in the field of TD-SCDMA trunking communication systems, can solve the problems of not being able to enhance TFCI performance, difficult to ensure the reliability of TFCI data, etc., to achieve the effect of ensuring reliability

Inactive Publication Date: 2013-03-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Nokia's patent application number 200480041800, the patent name is "Method and device for performing TFCI reliability detection in E-DCH" in the public text, a method of protecting TFCI reliability is proposed, which is mainly through error detection way to protect TFCI, but not to enhance the performance of TFCI
[0005] Since the downlink of the trunking communication system cannot use smart antenna technology, it is difficult to ensure the reliability of TFCI data at the receiving end. Therefore, it is necessary to find a method that can enhance the reliability of TFCI data on the basis of existing technologies.

Method used

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  • Method for transmitting TFCI data and TD-SCDMA trunking communication system
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  • Method for transmitting TFCI data and TD-SCDMA trunking communication system

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Embodiment 1

[0046] In this embodiment, the error correction code used is a linear block code, and the specific method for transmitting TFCI data, such as Figure 4 shown, including the following steps:

[0047] S201. The transmitting end obtains the TFCI data to be used, and uses a linear block code to perform error correction encoding on the TFCI data, and the information length of the encoded TFCI data is 10 bits;

[0048] Due to the characteristics of the TD-SCDMA trunking communication system, the information length of the TFCI data at the transmitting end is 4 bits at this time, and the error correction coding is performed on the TFCI data, and the encoded information length is 10 bits.

[0049]First, it is assumed that the bit information of the TFCI data used at this time is 1010. The error correction code in this embodiment uses a linear block code. The linear block code means that the supervisory relationship between the information bit and the parity bit is linear, which is curr...

Embodiment 2

[0056] In this embodiment, the error correction code used is cyclic coding, and the specific method of transmitting TFCI data, such as Figure 5 shown, including the following steps:

[0057] S301. The transmitting end obtains the TFCI data to be used, and uses a cyclic code to perform error correction encoding on the TFCI data, and the information length of the encoded TFCI data is 10 bits;

[0058] Due to the characteristics of the TD-SCDMA trunking communication system, the information length of the TFCI data at the transmitting end is 4 bits at this time, and the error correction coding is performed on the TFCI data, and the encoded information length is 10 bits.

[0059] First, it is assumed that the bit information of the TFCI data used at this time is 1010, the error correction coding in this embodiment uses cyclic coding, and the bit information of the TFCI data is 0101001010 after the cyclic coding is performed.

[0060] S302. Perform second-order Reed-Muller encodin...

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Abstract

The present invention provides a method for transmitting TFCI data and a TD-SCDMA trunking communication system, wherein the method is completed in such a way that: a transmitting terminal obtains TFCI data to be used, corrects and encodes the TFCI data, encodes the TFCI data already corrected and encoded by using second order Reed Muller code, and maps the encoded TFCI data to a radio frame and then transmits it out; and a receiving terminal receives the TFCI data sent by the transmitting terminal, decodes the TFCI data by using the second order Reed Muller code and then corrects and decodes the TFCI data. The method for transmitting the TFCI data of the invention can enhance the reliability of TFCI in the TD-SCDMA trunking communication system.

Description

technical field [0001] The present invention relates to a wireless communication technology, and more specifically, relates to a transmission format combination indication ( Transport FormatCombination Indicator, referred to as TFCI) data method and TD-SCDMA trunking communication system. Background technique [0002] The TD-SCDMA trunking communication system is a trunking communication system developed on the basis of the existing TD-SCDMA technology. It adopts a group-based communication mode, and users within the group share service and control channels. Due to the characteristics of TD-SCDMA cluster communication, the smart antenna technology in the TD-SCDMA system cannot be used in its downlink, and group user data and control information can only be transmitted in the form of broadcast. [0003] The TFCI in the TD-SCDMA trunking communication system is used to inform the receiver of the transmission format parameters of the sender so that the receiver can decode it c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W84/08
Inventor 李家海
Owner ZTE CORP
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