Clock Quality Signaling During Random Access in 5G UEs
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Solution Overview
Problem
In 5G networks, UEs in idle or inactive states need to enter an RRC connected state to obtain clock quality information, leading to significant signaling and radio interface resource overhead, despite needing only a small amount of information.
Innovation Solution
UEs in idle or inactive states receive clock quality information during a random access procedure without fully entering the RRC connected state, using contention resolution messages, downlink RRC messages, or random access responses, thereby reducing overhead and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UEs in idle or inactive state enter RRC connected state to obtain clock quality information, then the UEs can reliably receive the information, but signaling overhead and radio interface resource overhead become significant
Solution Approach 1:
The patent extracts the clock quality information delivery from the complete RRC connection establishment process. Instead of requiring UEs to fully enter RRC connected state, the network delivers clock quality information during the random access procedure itself, separating this specific information transfer task from the full connection setup sequence.
Solution Approach 2:
The patent performs clock quality information delivery preliminarily during the random access procedure, which occurs before the UE completes RRC connection establishment. By delivering the information in advance during Msg2 or Msg4 of the random access procedure, the system avoids the overhead of completing the full RRC connection setup when only clock information is needed.
2Reliability
If UEs in idle or inactive state enter RRC connected state to obtain clock quality information, then the information can be reliably transmitted, but the procedure becomes complex and time-consuming
Solution Approach 1:
The patent extracts the clock quality information delivery from the complete RRC connection establishment process. Instead of requiring UEs to fully enter RRC connected state, the network delivers clock quality information during the random access procedure itself, separating this specific information transfer task from the full connection setup sequence.
Solution Approach 2:
The patent applies partial action by delivering only the necessary clock quality information during the random access procedure without completing the full RRC connection establishment. This partial delivery approach suffices for UEs that only need clock information, avoiding unnecessary procedural steps.
3Ease of operation
If UEs in idle or inactive state enter RRC connected state to obtain clock quality information, then complete signaling can be established, but radio interface resources are excessively consumed
Solution Approach 1:
The patent extracts the clock quality information delivery from the complete RRC connection establishment process. Instead of requiring UEs to fully enter RRC connected state, the network delivers clock quality information during the random access procedure itself, separating this specific information transfer task from the full connection setup sequence.
Solution Approach 2:
The patent performs clock quality information delivery preliminarily during the random access procedure, which occurs before the UE completes RRC connection establishment. By delivering the information in advance during Msg2 or Msg4 of the random access procedure, the system avoids the overhead of completing the full RRC connection setup when only clock information is needed.
Data Source
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AI summary
Embodiments of the present application provide a clock quality information receiving method and sending method, an apparatus, and a storage medium. The receiving method comprises: when it is determined that a clock synchronization status changes, initiating a random access process to a network device; and during the random access process, receiving clock quality information sent by the network device.