Relay-Aware Link Maintenance Timing for Wireless Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The extension of data transmission time due to factors such as forwarding efficiency of relays and link performance in relay communications, leading to potential early Radio Link Failure (RLF) and inefficiencies in link maintenance.
Innovation Solution
A method for wireless communications that adjusts the timing of procedures based on whether a message is relayed, using timers and feedback to optimize link maintenance and reduce the probability of early RLF, including configuring offsets and time lengths for message forwarding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If data is forwarded through a relay node, then coverage and throughput are improved, but data transmission time is extended
Solution Approach 1:
The patent applies preliminary action by adjusting the timer values before the actual transmission timing decision is made. The network configures different timer values (first timer value for relayed messages, second timer value for non-relayed messages) in advance, allowing the UE to properly account for relay processing delays when determining transmission timing, thereby reducing unnecessary waiting time while maintaining reliable relay communication
Solution Approach 2:
The patent changes the time parameter (timer value) based on whether the message is relayed or not. By configuring different timer values according to the relay status, the system optimizes the transmission timing - using a longer timer for relayed messages to account for additional processing time, and a shorter timer for direct messages to reduce latency, thus resolving the contradiction between coverage improvement and transmission time extension
2Productivity
If data is forwarded through a relay node, then throughput is improved, but data transmission time is extended
Solution Approach 1:
The network performs preliminary configuration of appropriate timer values based on the relay status before transmission occurs. This allows the UE to accurately determine when to expect messages and when to trigger retransmissions, optimizing the throughput by preventing unnecessary delays while maintaining the benefits of relay-based high-speed data forwarding
Solution Approach 2:
The system dynamically adjusts the time parameter (timer value) according to whether messages are sent through relays. By using longer timers for relayed messages and shorter timers for direct messages, the system maintains high throughput through efficient resource utilization while minimizing transmission time losses
3Device complexity
If a fixed timer value is used for message transmission, then device complexity is reduced, but link maintenance efficiency deteriorates
Solution Approach 1:
The patent applies local quality by using different timer values for different message types (relayed vs. non-relayed). Instead of a single uniform timer, the system configures specific timer values according to the local condition of whether the message passes through a relay, thereby optimizing link maintenance efficiency for each message type without significantly increasing overall device complexity
Solution Approach 2:
The system changes the time parameter based on the message transmission path. By configuring different timer values for relayed and non-relayed messages, the system improves link maintenance efficiency - ensuring that relayed messages have sufficient time for processing while direct messages are handled more quickly, without requiring complex adaptive algorithms
4Device complexity
If the transmission timing is not adjusted for relayed messages, then device complexity is reduced, but the probability of early Radio Link Failure increases
Solution Approach 1:
The network performs preliminary configuration of appropriate timer values based on relay status before transmission occurs. This preliminary action ensures that the UE uses the correct timer value for each message type, preventing early RLF caused by premature transmission timing decisions, while keeping device complexity low through simple configuration-based differentiation
Solution Approach 2:
The system changes the time parameter (timer value) according to whether the message is relayed. By using longer timers for relayed messages, the system ensures that the UE waits appropriately for relayed messages to arrive, preventing early RLF events, while maintaining simple device operation through straightforward parameter selection based on message type
Data Source
AI summary
The present application provides a method and a device in a communication node for wireless communications. A communication node receives a first signaling; sets contents of a second message at a first moment; transmits a first radio signal, the first radio signal comprises the second message; at a second moment, as a response to not receiving a third message, determines performing a first procedure; the first signaling is used to determine a first time length; the second message comprises link maintenance related information; the third message is triggered by the second message; the second moment is after the first moment and its interval with the first moment is a second time length. Aiming at the problem of increased delay brought by relay communications, the present application proposes a scheme for delaying a determination of a first procedure to avoid triggering the first procedure to early.