Implementation method of circuit domain fallback and dual-mode terminal

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

Active Publication Date: 2018-10-16
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 the SAR (Specific Absorption Rate, electromagnetic wave energy absorption ratio) requires more complex power control; (4) dual transmitters and dual receivers lead to large power consumption

Method used

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  • Implementation method of circuit domain fallback and dual-mode terminal
  • Implementation method of circuit domain fallback and dual-mode terminal
  • Implementation method of circuit domain fallback and dual-mode terminal

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Embodiment Construction

[0044] The present disclosure will be described below with reference to the drawings. It should be noted that the following description is merely explanatory and exemplary in nature, and in no way serves as any limitation to the present disclosure and its application or use. Unless specifically stated otherwise, the relative arrangement of components and steps and the numerical expressions and numerical values ​​set forth in the embodiments do not limit the scope of the present disclosure. In addition, the 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 the present disclosure using PAN (Personal Area Network, personal area network) network to achieve circuit domain fallback.

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

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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 wireless networks, 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 and management capabilities, as well as complete billing and back-end management systems. Although the LTE (Long Term Evolution) network based on the IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) platform can achieve the same business logic, but in the initial stage of LTE network deployment, in order to reduce the cost of network construction, and to maximize reuse In the existing investment of circuit domain network, the 3GPP specification defines two LTE / 1x CSFB (Circuit Switched FallBack) implementation schemes that do not need to adopt the IMS scheme: (1) 1x CSFB / e1x CSFB; (2) CSFB Dual Rx. These two technical so...

Claims

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Application Information

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