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Multi-card multimode terminal as well as Inter-RAT cell reselection method and device

A cell reselection, multi-card and multi-mode technology, applied in advanced technology, electrical components, sustainable buildings, etc., can solve the problems of high power consumption of terminals and low efficiency of cell reselection in different systems, so as to improve reselection efficiency, Effects of reselection and dwell time shortening, power consumption reduction

Active Publication Date: 2012-04-18
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem solved by the present invention is that the existing multi-card multi-mode terminal has low reselection efficiency of different system cells and high power consumption of the terminal

Method used

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  • Multi-card multimode terminal as well as Inter-RAT cell reselection method and device
  • Multi-card multimode terminal as well as Inter-RAT cell reselection method and device
  • Multi-card multimode terminal as well as Inter-RAT cell reselection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The following takes a dual-card dual-mode mobile phone as an example to describe in detail. In this embodiment, the first network is a GSM network, and the second network is a TD-SCDMA network.

[0037] The terminal card 1 of the dual-card dual-mode mobile phone currently resides in cell 1 (GSM network cell), and the terminal card 2 currently resides in cell 2 (GSM network cell). When terminal card 1 complies with the protocol (3GPP TS 45.008 protocol) When the cell reselection condition of the different system is met, the terminal card 1 and the terminal card 2 are triggered to perform the reselection of the adjacent cell of the different system (TD-SCDMA network adjacent cell), wherein the terminal card 1 is set as the master card.

[0038] First, measure the signal strength of the TD-SCDMA network adjacent cell of cell 1 and the TD-SCDMA network adjacent cell of cell 2 (corresponding figure 1 Step S1).

[0039] Specifically, please refer to figure 2 , execute step...

Embodiment 2

[0055] In this embodiment, the first network is a TD-SCDMA network, and the second network is a GSM network.

[0056] The terminal card 1 of the dual-card dual-mode mobile phone currently resides in cell A (TD-SCDMA network cell), and the terminal card 2 currently resides in cell C (TD-SCDMA network cell). When the terminal card 2 conforms to the agreement (3GPP TS25. 304) When the specified conditions for cell reselection of different systems are triggered, terminal card 2 and terminal card 1 are triggered to perform reselection of neighboring cells of different systems (GSM network neighboring cells), wherein terminal card 2 is set as the main card.

[0057] First, measure the signal strength of the GSM network neighbors of cell A and the GSM network neighbors of cell C (corresponding figure 1 Step S1).

[0058] Specifically, please refer to image 3 , execute step S31, obtain the GSM network neighbor list of the TD-SCDMA network cell where each terminal card resides, that...

Embodiment 3

[0082] Terminal card 1 of the four-card dual-mode mobile phone currently resides in cell 1 (GSM network cell), terminal card 2 currently resides in cell 2 (GSM network cell), and terminal card 3 currently resides in cell A (TD-SCDMA network cell). cell), the terminal card 4 currently resides in cell C (TD-SCDMA network cell).

[0083] When terminal card 1 meets the conditions for different-system cell reselection stipulated in the protocol, terminal card 1 and terminal card 2 are triggered to perform reselection of different-system adjacent cells (TD-SCDMA network adjacent cells), while terminal card 3 continues to reside in cell A , the terminal card 4 continues to reside in cell C.

[0084] Among them, the process of terminal card 1 and terminal card 2 performing TD-SCDMA network neighbor reselection can refer to figure 2 , terminal card 1 is the main card.

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Abstract

The invention discloses a multi-card multimode terminal as well as an Inter-RAT cell reselection method and device. At least two terminal cards are selected from multiple cards to reside in the cell of a first network. The Inter-RAT cell reselection method comprises the following steps: measuring the signal intensity of the Inter-RAT neighbourhood of the cell of the first network, in which each of the at least two terminal cards reside, wherein the Inter-RAT neighbourhood is the cell of an adjacent second network; and controlling the at least two terminal cards to reselect the Inter-RAT neighbourhood with the strongest signal intensity. According to the technical scheme disclosed by the invention, the reselection behavior is simplified, the reselection efficiency is improved, the power consumption of the multi-card multimode terminal is lowered, and the reselection conflict of multiple terminal cards can be reduced.

Description

technical field [0001] The present invention relates to a mobile communication terminal, in particular to a multi-card multi-mode terminal and a method and device for reselecting cells of different systems. Background technique [0002] The development of mobile communication has formed a variety of wireless communication systems, such as the second generation mobile communication system (2G): Global System for Mobile Communication (GSM, Global System for Mobile Communication), General Packet Radio System (GPRS, General Packet Radio System), Code Division Multiple Access (CDMA, Code Division Multiple Access), etc., third generation mobile communication system (3G): Time Division Synchronous Code Division Multiple Access system (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access), broadband Code Division Multiple Access access system (WCDMA, Wideband Code Division Multiple Access), and the long-term evolution (LTE, Long Term Evolution) system of the third gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W36/08H04W36/30
CPCY02B60/50Y02D30/70
Inventor 钱民乾陈贤亮尉霞
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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