Dual SIM Resource Coordination for Interference Mitigation
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Solution Overview
Problem
The implementation of dual connectivity in terminal devices poses challenges in resource sharing and allocation between two subscriber identity cards, as well as coexistence interference due to simultaneous uplink signal transmission.
Innovation Solution
A method and device for resource coordination, where a terminal device sends request messages to a network device to configure or reserve resources, allowing for simultaneous communication on two networks through two subscriber identity cards, and includes mechanisms for lowering terminal device capability to manage resource usage effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dual connectivity is implemented in terminal devices to enable simultaneous uplink and downlink data service on two networks, then communication capability and network coverage are improved, but resource sharing and allocation between two subscriber identity cards become problematic
Solution Approach 1:
The patent segments resource management by creating separate resource pools for different subscriber identity cards (SIMs) and network configurations. The network device divides available resources into first resources for the first SIM and second resources for the second SIM, allowing independent management and allocation without interference between the two connectivity paths.
Solution Approach 2:
The patent implements dynamic resource allocation where the terminal device can flexibly switch between different resource pools based on current network conditions, service requirements, and SIM card states. The network device dynamically adjusts resource configuration through RRC connection reconfiguration messages, enabling adaptive resource sharing that responds to changing operational demands.
2Reliability
If dual connectivity is implemented to allow simultaneous communication on two networks, then network coverage and service reliability are improved, but coexistence interference due to simultaneous uplink signal transmission occurs
Solution Approach 1:
The patent applies local quality by assigning different physical resource blocks, frequency resources, or time resources to uplink transmissions from different SIM cards. This localized resource differentiation ensures that simultaneous uplink signals from the two SIMs do not interfere with each other, as each transmission occurs in a dedicated resource space configured by the network device.
3Productivity
If resource coordination mechanisms are implemented to manage dual subscriber identity cards, then resource allocation efficiency is improved, but signaling overhead and protocol complexity increase
Solution Approach 1:
The patent merges resource management functions by having the network device control both resource allocation and capability management through unified RRC signaling. The network device sends consolidated configuration messages that simultaneously address resource pool assignment, capability indication, and activation state management, reducing the number of separate signaling exchanges needed.
Solution Approach 2:
The patent implements self-service mechanisms where the terminal device autonomously monitors its own capability states and resource usage, then reports relevant information to the network device through uplink signaling. The network device uses this self-reported information to make informed resource allocation decisions, reducing the need for continuous network-controlled querying and adjustment.
Data Source
AI summary
A method and device for resource coordination are provided. The method comprises an operation as follows. A terminal device sends a first request message to a network device to which a first subscriber identity card is connected. The first request message is used for requesting the network device to configure or reserve a first resource, and the terminal device having the first subscriber identity card and a second subscriber identity card.