Dual-SIM Terminal Capability Sharing for Faster Data Transmission
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Solution Overview
Problem
Existing dual-SIM dual-standby terminal devices have limited capability allocation, restricting data transmission speed due to rigid division of capabilities between SIM cards.
Innovation Solution
Implement a communication method that allows two SIM cards to share the capabilities of a terminal device by sending indication information to the access network device, enabling flexible allocation of frequency bands and secondary cells for improved data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid capability division is used to enable two SIM cards to operate independently, then independence of SIM cards is ensured, but data transmission speed is limited
Solution Approach 1:
The patent implements dynamic capability sharing between two SIM cards by introducing a capability sharing indicator that allows the terminal to flexibly allocate transceiver resources. Instead of rigid static division, the system dynamically determines which SIM card uses which transceiver based on current communication needs, enabling one SIM to access both transceivers A and B while the other SIM uses the remaining transceiver, thereby improving data transmission speed while maintaining independent operation
Solution Approach 2:
The patent changes the capability allocation parameters from fixed to variable by introducing capability sharing indicators and support indicators. The network can configure different capability sharing modes through RRC parameters, allowing the terminal to adjust transceiver allocation dynamically. This parameter change enables the system to switch between different capability division schemes based on service requirements, resolving the contradiction between independence and transmission speed
2Reliability
If rigid capability division is implemented between SIM cards, then independent operation is achieved, but capability utilization is limited
Solution Approach 1:
The patent makes the transceiver resources universal by allowing one SIM card to potentially use both transceiver A and transceiver B through capability sharing. The capability sharing indicator enables a single transceiver to serve multiple SIM cards sequentially or simultaneously, increasing the versatility of the terminal's communication capabilities. This multi-functionality approach allows the system to adapt to different service scenarios while maintaining independent SIM card operation
Data Source
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AI summary
Embodiments of this application relate to the communication field, and provide a communication method, a device, and a system, so that two SIM cards of a terminal device can use capabilities of the terminal device in a sharing manner. A key inventive point of this application is as follows: A terminal device reports, to a first access network device corresponding to one SIM card, that the terminal device supports two user identities in sharing capabilities of the terminal device, and also reports a capability of the terminal device that is occupied by a second access network device corresponding to the other SIM card, so that the first access network device can configure a serving cell for the terminal device based on the capability of the terminal device that is occupied by the second access network device. Therefore, the capabilities of the terminal device can be shared between the two user identities, and the capabilities of the terminal device are fully utilized. This avoids a limitation, in a current technology, of a rigid capability division manner on a capability of the terminal device that can be used by each SIM card, and can improve a data transmission speed of the terminal device.