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Method for obtaining time difference of user equipment receiving transmission

A transmission time difference, user equipment technology, applied in the transmission system, communication between multiple stations, electrical components, etc., can solve the problems of positioning failure, measurement error effect, etc.

Inactive Publication Date: 2007-10-31
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its measurement error has a huge impact on the entire positioning result, and may even lead to positioning failure

Method used

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  • Method for obtaining time difference of user equipment receiving transmission
  • Method for obtaining time difference of user equipment receiving transmission

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Embodiment Construction

[0020] The principles and features of the present invention will be described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0021] In order to avoid the problem in the prior art that the measured data or control frame is not stable and controllable, the present invention modifies the definition of UE receiving transmission time difference. The time difference is defined as the time difference between receiving a specified frame from the downlink DPDCH / DPCCH link and transmitting the data frame from the uplink DPDCH / DPCCH link. When initiating a measurement request, the RNC needs to first determine the frame number to be measured, and in the measurement control message sent to the UE for initiating this measurement, when the measurement type is UE receiving transmission time difference, in the parameter of the request information Add t...

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Abstract

The invention provides a method to get the user's device receiving transmission time difference that includes following steps: wireless network controllers sends the measuring control information to the user's device, and request the user's device to detect the receiving transmission time difference; and includes further: appointing the data frame to be detected in the measuring control messages when the wireless network controller sends information; said user's device receives the detection control messages, and detects the receiving transmission time difference for the data frame to be detected. Using the method, it can obtain the UE receiving transmission time difference of appointed frame accurately, and other applications using the UE receiving transmission time difference can be accurate.

Description

technical field [0001] The present invention relates to the third generation of mobile communication, in particular to a method for accurately obtaining the receiving and transmitting time difference of user equipment in the measurement and control process of the air interface of a Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access) system. Background technique [0002] In the third generation mobile communication project organization (3GPP) protocol, a radio network controller (RNC, Radio Network Controller) may request a user equipment (UE, User Equepment) to measure UE reception transmission time difference. The specific definition of the UE receiving transmission time difference is that after receiving the measurement request sent by the RNC, the UE measures from the downlink dedicated physical data channel (DPDCH, Dedicated PhysicalData Channel) / dedicated physical control channel (DPCCH, Dedicated Physical ControlChannel) The time diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04L29/06
Inventor 李春艳续斌
Owner ZTE CORP