Data transmission method and apparatus, terminal device, network-side device and chip

A data transmission method, applied to a network-side device of a data transmission system, wherein the data transmission system further comprises a terminal device and a data server, and the method comprises:

• obtaining a change situation of a data transmission strategy of the terminal device, the data transmission strategy changing with a data service scenario change of the terminal device and being implemented by scheduling dual subscriber identity modules of the terminal device;
• and
• transmitting target data obtained from the data server to the terminal device according to a changed data transmission strategy;
• wherein the data service scenario is determined by obtaining network quality information of the terminal device, and determining the data service scenario corresponding to the terminal device based on the network quality information;
• and
• the network quality information comprises reference signal received power (RSRP), and taking a first scenario as the data service scenario corresponding to the terminal device under a condition that the RSRP is less than a first parameter threshold, the terminal device being positioned at an edge of a cell in the first scenario;
• wherein dual subscriber identity modules of the terminal device comprise a first subscriber identity module and a second subscriber identity module;
• and transmitting target data obtained from the data server to the terminal device according to a changed data transmission strategy comprise:
• obtaining a dual-subscriber-identity-module diversity transmission strategy corresponding to the first scenario, the dual-subscriber-identity-module diversity transmission strategy being used to transmit the same data by the first subscriber identity module and the second subscriber identity module;
• and
• transmitting the target data obtained from the server to the terminal device according to the dual-subscriber-identity-module diversity transmission strategy;
• wherein transmitting the target data obtained from the server to the terminal device according to the dual-subscriber-identity-module diversity transmission strategy comprise:
• generating second target data according to first target data, the first target data being the target data, and the first target data and the second target data being the same;
• and
• sending the first target data to the first subscriber identity module, and sending the second target data to the second subscriber identity module, the terminal device being used for saving data first received.

A terminal device, comprising:

• a first processor;
• and
• a first memory for storing executable instruction of the first processor;
• wherein
• the first processor is configured to execute the executable instruction to:
• determine a data service scenario corresponding to the terminal device;
• obtain a data transmission strategy corresponding to the data service scenario, the data transmission strategy being implemented by scheduling dual subscriber identity modules of the terminal device;
• and
• transmit to-be-transmitted data to a network-side device according to the data transmission strategy;
• wherein the determining a data service scenario corresponding to the terminal device comprises:
• obtaining network quality information of the terminal device;
• and
• determining the data service scenario corresponding to the terminal device based on the network quality information;
• wherein the network quality information comprises reference signal received power (RSRP), and the determining the data service scenario corresponding to the terminal device based on the network quality information comprises:
• taking a first scenario as the data service scenario corresponding to the terminal device under a condition that the RSRP is less than a first parameter threshold, the terminal device being positioned at an edge of a cell in the first scenario;
• wherein dual subscriber identity modules of the terminal device comprise a first subscriber identity module and a second subscriber identity module;
• and the obtaining a data transmission strategy corresponding to the data service scenario and the transmitting to-be-transmitted data to the network-side device according to the data transmission strategy comprise:
• obtaining a dual-subscriber-identity-module diversity transmission strategy corresponding to the first scenario, the dual-subscriber-identity-module diversity transmission strategy being used to transmit the same data by the first subscriber identity module and the second subscriber identity module;
• and
• transmitting the to-be-transmitted data to the network-side device according to the dual-subscriber-identity-module diversity transmission strategy;
• wherein the data transmission system further comprises a data server;
• and the transmitting the to-be-transmitted data to the network-side device according to the dual-subscriber-identity-module diversity transmission strategy comprises:
• distributing the to-be-transmitted data to the first subscriber identity module and the second subscriber identity module;
• and
• transmitting the to-be-transmitted data to the network-side device by the first subscriber identity module, and transmitting the to-be-transmitted data to the network-side device by the second subscriber identity module, the network-side device being used for transmitting the data first received to the data server.