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Method for indicating HS-PDSCH channel modulation mode

A technology of HS-SCCH and channel modulation, applied in the field of indicating HS-PDSCH channel modulation mode, which can solve the problems such as inability to indicate HS-PDSCH channel modulation mode

Inactive Publication Date: 2008-07-30
ST ERICSSON SEMICON BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0042] The purpose of the present invention is to provide a method for indicating the modulation mode of the HS-PDSCH channel, to solve the problem that only one bit is used to indicate the modulation mode in the HS-SCCH channel in the existing TD-SCDMA system, and it is impossible to indicate more than two HS-PDSCH channels. Technical Problems of PDSCH Channel Modulation

Method used

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  • Method for indicating HS-PDSCH channel modulation mode
  • Method for indicating HS-PDSCH channel modulation mode
  • Method for indicating HS-PDSCH channel modulation mode

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. In the method of the present invention, the terminal can first report to the network whether the terminal supports more than two HS-PDSCH channel modulation modes, and if so, the following embodiment is used to indicate the modulation mode; otherwise, the existing mode is used to indicate the modulation mode.

[0059] Specifically, the following steps are taken on the network side:

[0060] A1. The network side selects the modulation mode information field x according to the modulation mode ms，1 Perform an XOR operation with the value of the terminal identification information or its reverse order and the CRC tail bit information generated by the HS-SCCH control information, and append the operation result after the control information;

[0061] A2. The network end performs channel coding, rate matching, interleaving, physical channel segmentati...

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Abstract

The invention discloses a method for instructing the HS-PDSCH channel modulation modes. The method is based on the prior HS-SCCH codec, the xor calculation is carried out by the CRC tail bit information which is generated by using another sequence of the terminal identification information and the HS-SCCH control information, the HS-PDSCH channel modulation modes are represented by using 1 bit of HS-PDSCH channel modulation mode information domain which is combined with the sequence mode of the terminal identification information, so the HS-SCCH channel in a TD-SCDMA system can be used for instructing more than two HS-PDSCH channel modulation modes.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for indicating HS-PDSCH channel modulation mode in a TD-SCDMA system. Background technique [0002] In the Time Division Synchronous Code Division Multiple Access (TD-SCDMA) mobile communication system, in order to increase the downlink throughput of the system and the peak rate of a single user, the High Speed ​​Downlink Packet Access (HSDPA) technology is introduced. User downlink data using this technology is transmitted on a special shared channel - High Speed-Physical Downlink Shared Channel (HS-PDSCH). In order to respond quickly to channel changes, the control of the transmission mode of the HS-PDSCH channel is performed in the NodeB, rather than in the Radio Network Controller (RNC) like other traditional services. [0003] The NodeB controls the transmission mode of the HS-PDSCH channel through a special shared physical channel - High Speed-Shared Control Ch...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04B1/707H04Q7/22
Inventor 张元
Owner ST ERICSSON SEMICON BEIJING
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