Terminal Capability Reporting for Protocol Version Compatibility
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Solution Overview
Problem
In wireless communication systems, incompatibility issues arise due to the coexistence of base stations and core network devices supporting different protocol versions, leading to communication problems between terminal devices and network devices.
Innovation Solution
A communication method where terminal devices report capability information based on a filtering protocol version, sending incremental information and receiving indication from the network device to manage compatibility, and network devices send identifiers of supported protocol versions to facilitate seamless transitions and reduce resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices directly report capability information without filtering, then the reporting process is simple, but communication problems occur due to protocol version mismatch between terminal devices and network devices
Solution Approach 1:
The network device performs preliminary action by determining a filtering protocol version and sending it to the terminal device before the terminal device reports its capability information. The terminal device then uses this filtering protocol version to filter and determine what capability information to report, ensuring compatibility before communication occurs. This preliminary filtering action prevents protocol version mismatch issues from arising in the first place.
2Loss of information
If terminal devices report complete capability information, then all capability data is transmitted, but transmission resources are wasted due to protocol version differences
Solution Approach 1:
The terminal device changes the parameter of capability information by filtering it according to the filtering protocol version received from the network device. Instead of transmitting all capability information, the terminal device selectively transmits only those capabilities that are compatible with the filtering protocol version, thereby reducing transmission resource consumption while maintaining information completeness for the relevant protocol version.
Solution Approach 2:
The terminal device extracts only the necessary capability information that is relevant to the filtering protocol version from its complete capability set. By taking out and transmitting only the relevant subset of capability information rather than the entire capability set, the system reduces transmission overhead and energy consumption while still providing all necessary information for compatible operations.
3Adaptability or versatility
If the network device accepts all protocol versions, then device compatibility is improved, but the network device complexity increases to handle multiple protocol versions
Solution Approach 1:
The filtering protocol version acts as an intermediary between the terminal device and the network device. Instead of the network device directly handling multiple protocol versions, it uses a single filtering protocol version as a mediator to communicate with terminal devices. This intermediary approach maintains adaptability and compatibility while avoiding the complexity of implementing and managing multiple protocol versions simultaneously in the network device.
Data Source
AI summary
The present disclosure relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: A terminal device receives an identifier of a filtering protocol version from an access network device, and then sends first capability information of the terminal device to the access network device based on the filtering protocol version. In this method, the terminal device may report capability information based on the filtering protocol version sent by the access network device. Compared with a manner in which the terminal device directly reports the capability information, this method can effectively reduce a communication problem caused by mismatch between a protocol version supported by the terminal device and a protocol version supported by the access network device and/or a protocol version supported by a core network device.