Common Control Channel Segmentation for 64-bit Message Support
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Solution Overview
Problem
Existing communication systems over common control channels face challenges in efficiently supporting multiple common control logical channels, particularly in handling varying message sizes such as 48-bit and 64-bit CCCH messages in NR systems.
Innovation Solution
The implementation of additional Logical Channel Identifiers (LCIDs) and the definition of new CCCH logical channels, such as CCCH1, to specifically support 64-bit CCCH messages, allowing for forward compatibility and efficient use of channel resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single common control logical channel is used for all CCCH messages, then device complexity is reduced and ease of operation is improved, but channel resource utilization efficiency deteriorates and adaptability worsens due to inability to optimize for different message sizes
Solution Approach 1:
The patent segments the common control logical channel into multiple dedicated channels (CCCH-SD, CCCH-LD, CCCH-L) based on message size requirements. Each segment handles specific message types: short data messages (48-bit), long data messages (64-bit), and legacy messages, allowing optimized resource allocation and transmission parameters for each segment while maintaining manageable system complexity
Solution Approach 2:
The patent introduces a new dimension of channel differentiation by creating parallel logical channels with distinct identifiers (LCIDs) for different message sizes. This dimensional separation allows the system to handle varying message requirements simultaneously without increasing base complexity, as each channel operates independently with size-appropriate parameters
2Productivity
If additional logical channels are created to support multiple message sizes, then adaptability and channel resource utilization improve, but device complexity and configuration complexity increase
Solution Approach 1:
The patent applies local quality by assigning specific transmission parameters, resource allocations, and handling procedures to each logical channel based on its designated message size. For example, CCCH-SD uses parameters optimized for 48-bit messages while CCCH-L uses parameters optimized for 64-bit messages, ensuring each channel operates at peak efficiency for its specific function without requiring complex global reconfiguration
Solution Approach 2:
The patent implements dynamic channel selection where the system can flexibly choose which logical channel to use based on the actual message size and traffic conditions. This dynamic approach allows the network to adapt to varying communication requirements in real-time, improving overall productivity while managing complexity through standardized selection criteria
3Reliability
If legacy CCCH message formats are maintained for compatibility, then backward compatibility is preserved, but forward compatibility and support for larger messages deteriorate
Solution Approach 1:
The patent employs a nested structure where new logical channels (CCCH-SD, CCCH-LD) are layered alongside the legacy CCCH channel. The new channels are nested within the existing common control channel framework, maintaining the overall architectural integrity and backward compatibility while enabling support for larger message sizes through the additional nested channels with enhanced capabilities
Data Source
AI summary
Some demonstrative embodiments include devices, systems and/or methods of communication over common control channels. For example, an apparatus may include logic and circuitry configured to cause a User Equipment (UE) to determine a selected Common Control Channel (CCCH) message configuration from a first predefined message configuration and a second predefined message configuration, the first predefined message configuration having a first predefined message bit-size, the second predefined message configuration having a second predefined message bit-size; to generate an Uplink (UL) CCCH message according to the selected CCCH message configuration, the UL CCCH message comprising a Medium Access Control (MAC) header comprising a Logical Channel Identify (ID) (LCID) field having a value corresponding to the selected CCCH message configuration; and to transmit the UL CCCH message to a Next Generation Node B (gNB) over a logical channel corresponding to the selected CCCH message configuration.