RRC Message Configuration via Indication Bits for 5G Compatibility
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in configuring and indicating new Radio Resource Control (RRC) message types without disrupting legacy device operations, as existing mechanisms lack flexibility to support new user equipment categories, operation modes, and use cases.
Innovation Solution
The introduction of new RRC message types with mechanisms such as an indication bit, padding bits, spare or reserved fields, and cyclic redundancy check (CRC) to differentiate between legacy and new messages, allowing for configuration and indication without affecting legacy systems, using resources like time, frequency, space, and code domains specific to the new types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If new RRC message types are introduced to support new user equipment categories and operation modes, then the adaptability and versatility of the wireless communication system are improved, but the device complexity and difficulty of detecting and measuring message types increase
Solution Approach 1:
The patent uses different indication bit values (0 or 1) to differentiate between legacy and new RRC message types, analogous to using different colors to distinguish objects. This allows receiving devices to quickly identify message types without complex analysis, resolving the contradiction by providing clear differentiation while maintaining system adaptability.
Solution Approach 2:
The patent segments the RRC message structure by separating the indication bit from the main message content. This segmentation allows the message type to be identified independently and processed accordingly, reducing the complexity of detecting and measuring message types while supporting multiple new RRC message types for different user equipment categories.
2Adaptability or versatility
If new RRC message types are introduced with new resources for transmission, then the adaptability for new use cases is improved, but the loss of time for resource configuration and the device complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring indication bits and resource associations before new RRC message types are transmitted. The indication bit is already embedded in the message structure, and resources are pre-associated with specific message types, allowing receiving devices to immediately identify and process new message types without time-consuming configuration delays.
Solution Approach 2:
The indication bit serves as an intermediary element that mediates between the diverse new RRC message types and the legacy message processing framework. This intermediary allows the system to support multiple new use cases with different resources while maintaining a unified processing approach, reducing the time and complexity of resource configuration.
Data Source
AI summary
Aspects described herein relate to configuring and indicating radio resource control (RRC) message types in wireless communications, to support new UE categories, new operation modes, new use cases, or a combination thereof. Configuration and indication methods that may support co-existence of new and legacy RRC message types and/or user equipment (UE) procedures for decoding new RRC message type are also described.