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Transmission method for high-speed downlink shared channel under non-CELL_DCH state

A shared channel, high-speed technology, applied in the field of HS-DSCH transmission, can solve the problems of limited space and limited capacity for enhancement, and achieve the effect of large gain

Active Publication Date: 2011-05-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing system, UEs in CELL_FACH, CELL_PCH, and URA_PCH states all reside on the main carrier. When these states are enhanced, if the channel is still restricted to be established on the main carrier, the capacity will be limited, and the room for enhancement will be limited. very limited

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  • Transmission method for high-speed downlink shared channel under non-CELL_DCH state
  • Transmission method for high-speed downlink shared channel under non-CELL_DCH state
  • Transmission method for high-speed downlink shared channel under non-CELL_DCH state

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Embodiment Construction

[0043] Below in conjunction with specific embodiment, the technical problem to be solved by the present invention is further described:

[0044] The CELL_FACH enhancement technology will also be introduced into the TD-SCDMA system, and the present invention will be described below by taking the TD-SCDMA system as an example.

[0045] The non-CELL_DCH state referred to in the present invention includes multiple states such as idle state, CELL_FACH, CELL_PCH, and URA_PCH. Among them, the HS-DSCH reception of the UE in the idle state mainly refers to the process of receiving the RRC connection establishment message after the UE initiates an RRC connection request; the UE in the CELL_FACH state receives high-level signaling or data through the HS-DSCH; in the CELL_PCH state, the UE is in the DRX ( Receive paging messages in the discontinuous reception) cycle or receive high-layer signaling and direct data transmission through the HS-DSCH channel; while the UE in the URA_PCH state ...

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Abstract

The present invention discloses an HS-DSCH transmission method in a under non-CELL_DCH state, applied in a multi-carrier TD-SCDMA system. The method includes the following steps: Step A: establishing the HS-FACH relevant channels on the main carrier and / or secondary carrier, the network side notifying the HS-FACH relevant collocation information to user terminals through the district system information or dedicated signaling; Step B: the user terminal selecting a carrier with uplink random access resources to perform uplink accessing, and a base station Node B selecting a carrier with high speed forward access channel HS-FACH resources as a user terminal to schedule high speed downstream shared channel HS-DSCH resources. By the use of the method provided by the invention, it is defined that when HS-DSCH transfer is performed under non-CELL_DCH state in the multi-carrier HSDPA system, so that by changing the UE carrier presence mode under non-CELL_DCH state in the prior system, larger gain in the power system capacity aspect can be obtained; and this change conforms to the UE receiver gift in the prior system.

Description

technical field [0001] The present invention relates to a data transmission method of a high-speed downlink shared channel HS-DSCH in the field of wireless communication, in particular to a data transmission method of a non-cell_dedicated channel CELL_DCH under the TD-SCDMA multi-carrier architecture of time division synchronous code division multiple access HS-DSCH transmission method. Background technique [0002] The third-generation mobile communication partner organization 3GPP has completed the standardization work of cell_forward access channel CELL_FACH state enhancement in wideband code division multiple access WCDMA system in Rel-7 version. CELL_FACH state enhancement introduces the high-speed-downlink shared channel HS-DSCH transmission channel in the CELL_FACH state to enhance the packet data transmission performance of this state, so that it can obtain smaller packet transmission delay and higher transmission rate. This mechanism is also introduced into the pag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/08H04W84/02
Inventor 陈慧芮华张银成
Owner ZTE CORP
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