Network selection method and equipment

A network selection and network technology, applied in the direction of access restriction, electrical components, wireless communication, etc., can solve problems such as unavailable, inaccessible, and interrupted services, and achieve the effect of ensuring business continuity

Inactive Publication Date: 2011-08-17
HUAWEI TECH CO LTD
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Problems solved by technology

[0015] When the existing single-card dual-mode terminal reselects from one network to another, there will be a period of time when the servic

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  • Network selection method and equipment

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[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] See figure 2 An embodiment of the present invention provides a network selection method, which is applied to a terminal based on a SIM (Subscriber Identity Module) card, and the method includes:

[0048] S11: The CS domain service preferentially resides on the first network, and the CS domain service is preferentially carried through the first network;

[0049] S12: Preferentially camp on the PS domain service on the second network, and preferentially carry the PS domain service through the second network; wherein the first network has a lower data transmission rate and better signal coverage than the second network;

[0050] S13: When establishing the PS domain service, report the single-card dual-standby terminal identification to the seco...

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Abstract

The invention discloses a network selection method and equipment, belonging to the field of wireless communication. The method comprises the following steps: residing a CS (circuit-switched) domain service in a first network preferentially, and preferentially bearing the CS domain service by virtue of the first network; preferentially residing a PS(packet switched domain) domain service in a second network, and preferentially bearing the PS domain service by virtue of the second network, wherein compared with the second network, the first network has lower transmission rate and better signal coverage; reporting a single-card double-standby terminal identification when building the PS domain service; and reselecting the PS domain service to the first network when the communication quality of the second network not meet the PS domain service requirement in the PS domain service process based on the single-card double-standby terminal reselection parameters distributed by the second network. According to technical scheme provided by the invention, the service unreachable problem of the terminal in network reselection is solved, the service continuity of the terminal in network reselection is ensured, and especially the service continuity of the single-card double-standby terminal in PS service network reselection is ensured.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a network selection method and equipment. Background technique [0002] In the field of wireless communication technology, 2G network and 3G network are two widely used networks. Services based on 2G networks and 3G networks mainly include voice services and data services, wherein voice services are carried by the circuit switched domain (CS domain, Circuit Switched Domain), and data services are carried by the packet switched domain (PS domain, Packet Switched Domain). Bearer, both 2G network and 3G network support CS domain service and PS domain service. The aforementioned CS domain or PS domain can be understood as a collection of software and hardware for processing CS domain services (such as voice services) or PS domain services (such as data services). [0003] Compared with 2G network, 3G network is a new network with larger bandwidth and better data service experi...

Claims

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Application Information

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IPC IPC(8): H04W48/18
CPCH04W48/18
Inventor 郑小春曾雪红夏庆凡
Owner HUAWEI TECH CO LTD
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