The invention discloses a mobile terminal and a data service switching method. The method comprises the steps that the mobile terminal sends a data service switching request to a network corresponding to the master subscriber identity module card when data service needs to be switched from a master subscriber identity module card to a secondary subscriber identity module card; the mobile terminal receives global system for mobile communication system cell information returned by the network corresponding to the master subscriber identity module card; the mobile terminal is connected with a low-speed network corresponding to the received global system for mobile communication system cell information and sets the master subscriber identity module card to be a single mode; and the mobile terminal sets the secondary subscriber identity module card to be a multi-mode and is connected with a high-speed network corresponding to the secondary subscriber identity module card. According to the embodiment of the mobile terminal and the method, the offline problem occurred when the data service is switched between different SIM (Subscriber Identity Module) cards, and the user experience is improved.

Mobile terminal and data service switching method

The invention relates to the technical field of satellite communication and particularly discloses a satellite terminal network selection and fast network access method and device. The method includes the steps of storing a fast network access channel list of Inmarsat and a fast network access channel list of ACeS in a satellite terminal; only searching beams of the fast network access channel list of Inmarsat or ACeS, determining a service beam among the beams and performing network access registration and residing in the step of starting selection and residing in the satellite network beam of the satellite terminal. The satellite terminal network selection and fast network access method and device can improve the network access efficiency of the satellite terminal, reduce the power consumption of the satellite terminal and enhance the user experience by storing the fast network access channel lists in the satellite terminal and only searching the beams of the fast network access channel lists for network access residing during starting network selection and network access of the satellite terminal.

Satellite terminal network selection and fast network access method and device

The present disclosure provides a mobile terminal and a wireless communication method, the mobile terminal includes: a first data card, a second data card, a first processing chip, a first logic switch, a second logic switch and a second processing chip; where the first processing chip is further configured to establish a data service link with 4G network to preform data service transmission, upon the condition that the first data card or the second data card connecting with the first processing chip; the second processing chip is further configured to establish a data service link with 4G network to preform data service transmission, upon the condition that the first data card or the second data card connecting with the second processing chip.

Mobile terminal and wireless communication method

A service processing method, a service processing apparatus, and a communications system are provided. The service processing method includes: receiving, by an access network device, from a core network device, a bearer setup request message of a VoLTE service; and rejecting, by the access network device, the bearer setup request message when determining that LTE network signal quality of a terminal of the VoLTE service cannot satisfy the VoLTE service. The technical solutions provided in embodiments of the present disclosure help improve stability of an established VoLTE service, thereby helping improve call experience of a user.

Service processing method and service processing apparatus

Disclosed in embodiments of the present invention are a CSFB fall-back result detecting method and device, and a computer storage medium. The method may comprises: triggering a terminal to send an attach request message to a long term evolution (LTE) base station and receiving an attach accept message sent by the LTE base station, wherein the attach accept message carries an indication information used for indicating the terminal to use a preconfigured CSFB optimization scheme to perform a voice service; when the terminal receives a paging message sent by the LTE base station, controlling the terminal to perform a CSFB process on the basis of the CSFB optimization scheme indicated by the indication information and a redirection command sent by the LTE base station; in performing the CSFB process, after it is detected that the terminal fails to access a first GSM cell, detecting the state of a voice call of the terminal accessing a second GSM cell, the first GSM cell having the characteristic of a pseudo base station, the second GSM cell having the characteristic of a normal base station, and the signal strength of the first GSM cell being greater than the signal strength of the second GSM cell; and determining whether the CSFB fall-back succeeds or not according to the detected state of the voice call.

CSFB fallback result detecting method and device, and computer storage medium

The invention provides a determination method for a voice service scheme of a VoLTE (Voice over Long Term Evolution) terminal and the VoLTE terminal. The method comprises the following steps: reselecting from a 2G/3G (Two-Generation/Three-Generation) cell to an LTE cell by the VoLTE terminal according to cell signal intensity measured in a preset range; if a reselected LTE cell identity is stored at the VoLTE terminal, transmitting a first position updating request to a mobile management entity MME by the VoLTE terminal, wherein a VoLTE voice service scheme restriction identity is carried in the first position updating request, so an IMS (IP Multimedia Subsystem) unregistration request message of the VoLTE terminal is transmitted to an IMS by a home subscriber server HSS according to the VoLTE voice service scheme restriction identity carried in a first position updating message; receiving, by the VoLTE terminal, an IMS unregistration success response message transmitted by the IMS; determining circuit switched fallback CSFB according to the IMS unregistration success response message to serve as the voice service scheme of the VoLTE terminal to perform the voice service.

Determination method for voice service scheme of VoLTE (Voice over Long Term Evolution) terminal and VoLTE terminal

The invention discloses a VoLTE terminal re-registering method and a VoLTE terminal re-registering device, and the method comprises the following steps of: initially registering and interacting to VoLTE terminals and P-CSCF (Proxy Call Session Control Function); transmitting first registration requests into at least one backup P-CSCF and receiving all first registration response messages through the VoLTE terminals, wherein the mentioned first registration response messages include authentication parameters; if a failure is occurred in the P-CSCF, according to first backup P-CSCF addresses, by the VoLTE terminals, second registration requests are generated and transmitted into the first backup P-CSCF, and returned successful registration response messages are received; the first backup P-CSCF is one P-CSCF of at least one backup P-CSCF, and the second registration request includes authentication parameters corresponding to these of the first backup P-CSCF, thereby effectively reducing the procedure of re-registering the backup P-CSCF by the VoLTE terminal, quickening the registering time and improving the continuing efficiency of the VoLTE service.

VoLTE terminal re-registering method and device

The invention provides a multimode dual-card terminal SIM card switching method and a multimode dual-card terminal device. The method comprises the steps of monitoring data flow generated by data communication service using a first SIM card, wherein the first SIM card is the SIM card preconfigured by a user for performing the data communication service; if the size of the monitored data flow reaches a data flow upper limit threshold in a communication package corresponding to the first SIM card, judging that whether the available data flow in a communication package corresponding to a second SIM card is more than a preset threshold; and if the available data flow in the communication package corresponding to the second SIM card is more than the preset threshold, switching the second SIM card to implement data communication service instead of the first SIM card, thus switching the SIM cards in time and avoiding extra charges generated by data communication service of the first SIM card and waste of available data flow as the second SIM card has redundant data flow.

Multimode dual-card terminal SIM card switching method and multimode dual-card terminal device

The invention relates to a P-CSCF fault processing method and system. The method includes the steps that a service-call session control function (S-CSCF) obtains a proxy-call session control function (P-CSCF) address; the S-CSCF searches for user devices (UE) corresponding to a fault P-CSCF according to the address of the fault P-CSCF address; the S-CSCF sends a reregistering indication message to a stand-by P-CSCF so that the stand-by P-CSCF can forward the reregistering indication message to the UEs, and the reregistering indication message comprises the address of the stand-by P-CSCF address corresponding to the UEs so that the UEs can conduct reregistering on the stand-by P-CSCF. According to the P-CSCF fault processing method and system, after the P-CSCF fails, all the UEs using the fault P-CSCF can be informed to be reregistered to a new P-CSCF in advance, so that smooth building of the voice long-term evolution (VoLTE) service is guaranteed.

P-CSCF fault processing method and system

The invention discloses a network selection method and a 4G multi-mode terminal. The network selection method includes the steps that when being started up for the first time, the 4G multi-mode terminal detects whether 4G network identification is stored in a USIM card or not; if not, the 4G multi-mode terminal selects networks according to first network selection information stored in the 4G multi-mode terminal, wherein the first network selection information includes 4G network information; if yes, the 4G multi-mode terminal selects the networks according to second network selection information stored in the USIM card. Whether the 4G network identification is stored in the USIM card or not is detected, if the 4G network identification is not stored, the networks are selected according to the first network selection information stored in the 4G multi-mode terminal, the first network selection information includes the 4G network information, and therefore the 4G networks can be selected after a 4G business is opened for the 2G/3G USIM card and when the 4G multi-mode terminal is utilized to get on the internet under the condition that the card and the number are kept unchanged.

Zhou Jing

Papers

Determination method for voice service scheme of VoLTE (Voice over Long Term Evolution) terminal and VoLTE terminal

VoLTE terminal re-registering method and device

Multimode dual-card terminal SIM card switching method and multimode dual-card terminal device

P-CSCF fault processing method and system

Network selection method and 4G multi-mode terminal