Measurement method for switching inter RNC control frquency and intersystem

A technology for frequency control and heterogeneous systems, applied in communication between multiple stations, electrical components, synchronization devices, etc., can solve problems such as measurement failure and failure to capture target cells

Inactive Publication Date: 2005-02-09
BEIJING SAMSUNG TELECOM R&D CENT +1
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Problems solved by technology

Since the position of the synchronization channel (SCH) of the 3.84Mcps TDD cell is uncertain, when the uplink or downlink traffic channel of the UE overlaps with the SCH or P-CCPCH of the target inter-frequency cell, it will always be captured in the window of the idle time slot The SCH or P-CCPCH of the target cell is not available, causing measurement failure

Method used

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  • Measurement method for switching inter RNC control frquency and intersystem
  • Measurement method for switching inter RNC control frquency and intersystem
  • Measurement method for switching inter RNC control frquency and intersystem

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Embodiment Construction

[0028] For the possible synchronization failure problem in the inter-frequency / inter-system measurement process, it can be solved by reallocating the traffic channel of the UE, that is, moving the traffic channel of the UE to other time slots, so that the position of the measurement window can be changed. This increases the probability of synchronization. Channel reconfiguration can be done through existing RRC and NBAP signaling in existing specifications.

[0029] Even so, there are still two issues to consider in the implementation: First, is it necessary to perform channel reassignment every time a measurement fails? After all, the reconfiguration of radio resources will bring greater complexity to the management of radio resources. Second, if channel reallocation is required, to which time slot does the channel need to be reallocated? Because neither the UE nor the RNC knows which service time slot overlaps with the synchronization channel of the target cell.

[0030]A...

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Abstract

The method of RNC controlled switching between different frequencies and different systems for measurement includes the following steps: for RNC to determine whether to re-assign UE business channels based on the received measurement report from UE; and for RNC to determine to which time interval the UE business channels will be assigned in case of re-assigning. The present invention determines the channel transfer based on the information in UE measurement report, and this can avoid failure in measurement and ensure communication quality.

Description

technical field [0001] The present invention relates to inter-frequency / inter-system switching from the third-generation mobile communication system 1.28Mcps TDD (time division duplex) system to the inter-frequency 1.28Mcps TDD / inter-frequency 3.84Mcps TDD system / the second-generation GSM (Global System for Mobile) system previous measurement process. Background technique [0002] The 3GPP (Third Generation Partnership Project) RAN (Radio Access Network) specification stipulates that the 1.28Mcps TDD system supports the function of inter-frequency / inter-system handover. Due to the coexistence of multiple access technologies in existing and future mobile communication systems, for example: the third generation mobile communication system - broadband CDMA system (including FDD of WCDMA system, 1.28Mcps TDD, 3.84Mcps TDD mode, and cdma2000 system) And the second generation mobile communication system GSM. As for the 1.28Mcps TDD system, there are many possibilities of carrier...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04B7/26H04W24/10H04W36/14H04W36/30H04W56/00
Inventor 王婷李小强李国锡崔成豪李国镇
Owner BEIJING SAMSUNG TELECOM R&D CENT
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