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A method of hard switch between heterogeneous systems for WCDMA system

A wideband code division multiple access, different system technology, applied in the field of different system hard handover, can solve the problems of reducing the risk of dropped calls and short commercial development time.

Active Publication Date: 2008-01-16
WUHAN HONGXIN TELECOMM TECH CO LTD
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Problems solved by technology

[0004] Compared with other 2G systems such as GSM system and CDMA system, 3G WCDMA system has many special features. Since the commercial development time of 3G in various countries is relatively short, there is no existing technology that can reduce the risk of call drop. Hard handover between different systems Therefore, it is necessary to propose an inter-system hard handover method that can effectively provide mutual hard handover between the 3G WCDMA system and the 2G system at the initial stage of network construction, and can reduce the risk of call drop.

Method used

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  • A method of hard switch between heterogeneous systems for WCDMA system
  • A method of hard switch between heterogeneous systems for WCDMA system
  • A method of hard switch between heterogeneous systems for WCDMA system

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Embodiment Construction

[0063] This party makes full use of the measurement results reported by UE event triggers in the WCDMA system. In the RNC, it comprehensively evaluates the signal quality of each different-system cell monitored by the UE and the current signal quality of the current system cell, so as to decide whether it is necessary to perform different System hard switch.

[0064] The implementation of the technical solution will be further described in detail below in conjunction with the accompanying drawings.

[0065] Various states and method steps of the inter-system hard handover method used in the emergency situation of wideband code division multiple access system under the conventional situation of adopting the present invention are shown in FIG. 1 .

[0066] In step 1 shown in Figure 1, the RNC sends an inter-system measurement command to the UE, specifying the physical quantity to be measured by the UE, the physical quantity to be reported, the filter coefficient of the measureme...

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Abstract

A different system hard switching method for WXDMA system, which is adaptive to initial stage application of third generation mobile communication system network establishment, improves signal quality of user communication in optimum mode, reduces UE transmission power and interference to other cells, said method also refers process of emergency of wireless network, dispatching among modules in integral system and technological content of planning 3G system network, can be adapted to other CDMA system.

Description

technical field [0001] The invention relates to a method for inter-system hard handover in a wideband code division multiple access (WCDMA) system, which is especially suitable for the initial application of the third generation mobile communication system network establishment. The present invention also relates to the technical content of wireless network emergency handling, inter-module scheduling in the overall system, and 3G system network planning and layout. The handover method of the present invention is also applicable to other code division multiple access (CDMA) systems. Background technique [0002] The application of mobile communication systems is becoming more and more extensive, and many key technologies in the system are also becoming more and more perfect, but there are still some problems to be solved, and cell handover is one of the main problems. In a cellular wireless communication system, a wireless communication coverage area consists of many partiall...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04W36/30
CPCY02B60/50
Inventor 张景宝郭华志
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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