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System and method for providing multicarrier HSDPA backward compatibility

A multi-carrier, compatible technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as inability to effectively support multi-carrier HSDPA terminals, and achieve the effect of backward compatibility

Active Publication Date: 2007-05-30
XIAOMI INC
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Problems solved by technology

[0017] In view of the problem that the MAC-sh PDU structure in the existing 3GPP Rel5 version standard cannot effectively support the downlink data transmission of the TD-SCDMA system multi-carrier HSDPA terminal, the purpose of the present invention is to provide a multi-carrier HSDPA backward compatible Method and corresponding system equipment, so as to ensure that existing 3GPP Rel5 version terminals supporting single-carrier technology can also access multi-carrier HSDPA networks for HSDPA data transmission under the premise of fully supporting the downlink data transmission performance of multi-carrier HSDPA terminals It will not be affected, and at the same time, the terminal supporting multi-carrier HSDPA can still work normally in the single-carrier form in the mobile or roaming network of single-carrier HSDPA

Method used

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  • System and method for providing multicarrier HSDPA backward compatibility
  • System and method for providing multicarrier HSDPA backward compatibility

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Embodiment Construction

[0042] The core of the present invention is that on the basis of adding a MAC-hs protocol data unit structure supporting multi-carrier HSDPA, the radio network controller determines the used MAC-hs protocol data unit according to the terminal's ability to support multi-carrier HSDPA structure, and inform the base station of the structure so that the base station uses the corresponding MAC-hs protocol data unit structure when sending downlink data to the terminal, and the terminal determines which MAC-hs protocol data unit to use according to its ability to support multi-carrier HSDPA The structure analyzes the received downlink MAC-hs protocol data unit.

[0043] In the TD-SCDMA system, taking the user terminal to start a data transmission process as an example, the process from starting the connection to allocating resources is as follows:

[0044] Carry out RRC (Radio Resource Control, radio resource control) establishment process, establish the signaling connection between ...

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Abstract

This invention discloses one multi-wave HSPDA system to support back capacity method, which comprises the following steps: designing one expensive MAC-hs PDU structure for multiple load wave HSDPA system at interface of network; network determines which structure through terminal report HSDPA ability information and adopts the structure and terminal for down high speed data transmission. This invention can make HSDPA terminal overcomes the problem of transmission speed limit to the send window to ensure its design peak speed acquires.

Description

technical field [0001] The present invention relates to a mobile communication system providing high-speed downlink packet access (HSDPA) service, in particular to a method for simultaneously enabling the network and the terminal to respectively support backward compatibility in the multi-carrier HSDPA system. Background technique [0002] One of the most important features of the third-generation mobile communication system is to provide comprehensive support for high-speed mobile packet data services, including video, streaming media, and file downloads. With the increasing demand of mobile communication users for high-speed packet data services, and to better compete with other wireless technologies' increasing support capabilities for data services, the Third Generation Partnership Project (3GPP) The HSDPA technology was introduced in the Rel5 version. HSDPA uses Adaptive Coding and Modulation (AMC) and Hybrid Automatic Repeat (HARQ) technology to add a high-speed downl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L1/00
Inventor 赵建全海洋胡文成毕海
Owner XIAOMI INC
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