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Realization method of circuit domain falling and double-mode terminals

A circuit domain fallback, dual-mode terminal technology, applied in the field of wireless networks, can solve the problems of complex radio head structure, large size, complex power control, etc., to achieve the effect of roaming

Active Publication Date: 2016-02-10
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

SVLTE terminals need to solve the following problems: (1) frequency interference caused by dual transmitters; (2) complex structure and large volume of radio frequency heads caused by dual transmitters and dual receivers; (3) when dual transmitters work at the same time, In order to meet SAR (SpecificAbsorptionRate, electromagnetic wave energy absorption ratio) requires more complex power control; (4) dual transmitters and dual receivers lead to greater power consumption

Method used

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  • Realization method of circuit domain falling and double-mode terminals
  • Realization method of circuit domain falling and double-mode terminals
  • Realization method of circuit domain falling and double-mode terminals

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Embodiment Construction

[0044]The present disclosure will be described below with reference to the accompanying drawings. It is to be noted that the following description is merely explanatory and exemplary in nature, and in no way serves as any limitation of the present disclosure, its application or uses. Relative arrangements of components and steps and numerical expressions and numerical values ​​set forth in the embodiments do not limit the scope of the present disclosure unless otherwise specifically stated. Additionally, techniques, methods and devices known to those skilled in the art may not be discussed in detail but are intended to be part of the description where appropriate.

[0045] figure 1 It is a schematic diagram of implementing circuit domain fallback by using a PAN (Personal Area Network, Personal Area Network) network in the present disclosure.

[0046] figure 2 It is a schematic flowchart of a method for implementing circuit domain fallback according to an embodiment of the ...

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Abstract

The invention relates to a realization method of circuit domain falling and double-mode terminals. The method comprises the following steps that the double-mode terminal which is in an idle state and supports a LTE network / mobile voice network constructs a PAN network; the double-mode terminal served as a PAN network coordination node pairs the double-mode terminal itself and the double-mode terminal served as a coordination node so that connection is established for the two double-mode terminals, and the two double-mode terminals in a pair are ensured to be registered to the LTE network and the mobile voice network respectively; one party of the double-mode terminals in the pair agents another party to complete an adhesion process in the network registered by one party, agents the another party to receive and forwards a received system message and a paging message to the another party; if the double-mode terminal which is in the pair and is registered in the LTE network receives a voice service paging message forwarded by the another party in the pair of double-mode terminals, the mobile voice network is switched to so as to realize circuit domain falling. By using the method and the terminals, roaming of CSFB double-mode terminals among different networks is supported.

Description

technical field [0001] The present disclosure relates to a wireless network, and in particular, to a method for implementing circuit domain fallback and a dual-mode terminal. Background technique [0002] At present, the circuit domain network of telecom operators provides complete basic voice services, supplementary services and their value-added services, management capabilities, and complete billing and background management systems. Although the LTE (Long Term Evolution, Long Term Evolution) network can implement the same business logic based on the IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) platform, in the initial stage of LTE network deployment, in order to reduce the cost of network construction and maximize reuse in the circuit domain network The 3GPP specification defines two implementations of LTE / 1xCSFB (Circuit Switched FallBack, circuit domain fallback) that do not need to use the IMS solution: (1) 1xCSFB / e1xCSFB; (2) CSFBDualRx. These two technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/02H04W36/18H04W68/00H04W88/06
Inventor 庄永昌
Owner CHINA TELECOM CORP LTD
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