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US 11,601,871 B2Granted
Data connection establishment method and terminal device
AssigneeHuawei Technologies Co., Ltd.
InventorYanhong Jia
Life of this patent
Estimating the term…
Abstract
A data connection establishment method and a terminal device, where the method includes receiving, by an application processor (AP), a switch-on instruction, sending, by the AP, a network searching instruction to a communications processor (CP), where the network searching instruction instructs the CP to search for a network, receiving, by the AP, subscriber identity module (SIM) card status change information and network status change information from the CP, and sending, by the AP, a data connection establishment instruction to the CP based on the SIM card status change information and the network status change information, where the data connection establishment instruction instructs the CP to establish a data connection to the found network.
Claims20
A data connection establishment method performed by an application processor (AP) of a terminal device, wherein the data connection establishment method comprises:
- receiving a switch-on instruction to start up the AP;
- sending, in response to receiving the switch-on instruction to start up the AP, a network searching instruction to a communications processor (CP) of the terminal device, wherein the network searching instruction instructs the CP to search for a network and instructs the CP to register a Packet Switched (PS) data service with a found network, and wherein the network searching instruction is sent without the AP waiting for the CP to report subscriber identification module (SIM) card status change information and network status change information to the AP;
- receiving the SIM card status change information and the network status change information from the CP after sending the network searching instruction, wherein the SIM card status change information informs the AP that the AP can send the CP an instruction for querying information about a SIM card inserted in the terminal device;
- determining, in response to receiving the SIM card status change information, a mobile country code (MCC) and a mobile network code (MNC) of the SIM card;
- determining, based on the network status change information, that the CP successfully registered the PS data service responsive to the network searching instruction;
- and
- sending a data connection establishment instruction to the CP based on the MCC and the MNC, wherein the data connection establishment instruction instructs the CP to establish a data connection to the found network.
4 more elements
A terminal device, comprising:
- a communications bus;
- a communications processor (CP);
- and
- an application processor (AP) coupled to the CP using the communications bus and configured to:
- receive a switch-on instruction to start up the AP;
- send, in response to receiving the switch-on instruction to start up the AP, a network searching instruction to the CP, wherein the CP is configured to search for a network based on the network searching instruction and to register a Packet Switched (PS) data service with a found network based on the network searching instruction, and wherein the network searching instruction is sent without the AP waiting for the CP to report subscriber identification module (SIM) card status change information and network status change information to the AP;
- receive the SIM card status change information and the network status change information from the CP after sending the network searching instruction, wherein the SIM card status change information informs the AP that the AP can send the CP an instruction for querying information about a SIM card inserted in the terminal device;
- determine, in response to receiving the SIM card status change information, a mobile country code (MCC) and a mobile network code (MNC) of the SIM card;
- determine, based on the network status change information, that the CP successfully registers the PS data service;
- and
- send a data connection establishment instruction to the CP based on the MCC and the MNC,
- wherein the CP is configured to establish a data connection to the found network based on the data connection establishment instruction.
9 more elements
A terminal device, comprising:
- a communications bus;
- a communications processor (CP);
- and
- an application processor (AP) coupled to the CP using the communications bus and configured to:
- receive a switch-on instruction to start up the AP;
- send, in response to receiving the switch-on instruction to start up the AP, a network searching instruction to the CP, wherein the networking searching instruction instructs the CP to search for a network and instructs the CP to register a Packet Switched (PS) data service with a found network, and wherein the network searching instruction is sent without the AP waiting for the CP to report subscriber identity module (SIM) card status change information and network status change information to the AP;
- receive the SIM card status change information from the CP after sending the network searching instruction to the CP, wherein the SIM card status change information is used to inform the AP that the AP can send the CP an instruction for querying information about a SIM card inserted in the terminal device;
- obtain, in response to receiving the SIM card status change information and from the CP, the information about the SIM card;
- obtain a mobile country code (MCC) and a mobile network code (MNC) of the SIM card from the information about the SIM card;
- obtain, from the information about the SIM card, a serial number, a local phone number, a voice mailbox identifier, a call transfer identifier, and operator name information of the SIM card;
- create, in parallel with the obtaining, an access point name (APN) based on the MCC and the MNC;
- and
- send a data connection establishment instruction to the CP such that the CP establishes a data connection to the found network based on the APN.
10 more elements
Dependencies are inferred from the claim text.