Wireless Device Capability Signaling Using Tags and Compression
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Solution Overview
Problem
Wireless communication systems face significant signaling overhead due to the need to transmit carrier aggregation (CA) capability information, which varies among devices and requires large data transmissions, necessitating a reduction in signaling burden.
Innovation Solution
The use of tags and compression techniques to compactly convey wireless device capabilities to the network, along with enhanced security measures to manage capability reporting, particularly allowing UE to decline providing information prior to security activation, and applying these techniques to both uplink and downlink signaling messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If carrier aggregation capability information is transmitted using traditional signaling methods, then the network can obtain complete device capability information, but the signaling overhead increases significantly
Solution Approach 1:
The patent uses a tag-based system where instead of transmitting the actual capability information directly, a compact tag representing the capability is transmitted. The network maintains a mapping between tags and full capability information, allowing complete information retrieval through transmission of only the tag identifier.
Solution Approach 2:
The patent transforms the capability information from its original detailed format into a compressed tag format. By changing the parameter representation from full capability descriptors to compact tag identifiers, the signaling overhead is significantly reduced while preserving the ability to retrieve complete information.
2Productivity
If UE provides capability information before security activation, then the network can configure carrier aggregation early, but security is compromised
Solution Approach 1:
The patent enables the network to prepare carrier aggregation configuration in advance by obtaining capability tags before security activation. The actual capability details are then retrieved and processed after security is established, allowing early configuration preparation without compromising security.
3Measurement precision
If detailed capability information is transmitted, then the network can perform accurate scheduling, but transmission time increases
Solution Approach 1:
The patent transmits only a tag copy that references the full capability information stored in the network. This allows the network to perform accurate scheduling by retrieving the complete capability details from its stored mapping, rather than waiting for lengthy transmissions of the full capability data.
Data Source
AI summary
This disclosure relates to techniques for reducing signaling overhead associated with signaling the capability of a wireless device and/or other messages. Among various possibilities, tags and/or compression may be used. Additionally, techniques for enhanced security and signaling between network devices are disclosed.