Dynamic Back-off Interval Adjustment for Random Access Latency
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Solution Overview
Problem
Current wireless communication systems face challenges in optimizing random access procedures, particularly in reducing latency and improving efficiency in next-generation networks like 5G, where traditional methods do not adequately address the need for low latency and high data throughput.
Innovation Solution
The proposed method involves a User Equipment (UE) receiving back-off information from the network to determine a back-off interval for transmitting preambles, allowing for dynamic adjustment of transmission timing based on service types and network feedback, thereby optimizing random access procedures and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional random access procedures are used in wireless communication systems, then the system can maintain compatibility with existing standards, but the latency is increased and efficiency is reduced for next-generation networks requiring low latency and high data throughput
Solution Approach 1:
The patent implements dynamic back-off interval adjustment by allowing the UE to determine the back-off interval based on received back-off information from the network. This dynamic mechanism enables the system to adapt transmission timing to current network conditions and service requirements, resolving the contradiction between maintaining standard compatibility and achieving low latency for next-generation services.
Solution Approach 2:
The patent changes the back-off interval parameter dynamically based on received back-off information. By adjusting this critical timing parameter according to network feedback and service types, the system can optimize random access performance for different scenarios, reducing latency while maintaining compatibility with existing random access procedures.
2Adaptability or versatility
If fixed transmission timing is used for preambles, then the system operation is simplified, but the ability to adapt to different service types and network conditions is reduced
Solution Approach 1:
The patent implements a feedback mechanism where the network provides back-off information to the UE. This feedback loop enables the UE to adapt its transmission timing to network conditions and service requirements without requiring complex local decision-making algorithms, thus improving adaptability while controlling complexity through centralized network control.
Solution Approach 2:
The UE autonomously determines its back-off interval based on the received back-off information, performing self-adjustment of transmission timing. This self-service approach allows the UE to adapt to different service types and network conditions independently, improving versatility without requiring continuous network intervention or complex coordination.
Data Source
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AI summary
A method and apparatus are disclosed, from the perspective of the UE (User Equipment), for performing random access procedure. Preferably, the method includes the UE receives a first back-off information from the network in a broadcast message, wherein the first back-off information includes a start offset of back-off interval (2505). The UE transmits a first preamble to the network (2510). The UE determines a back-off interval based on the first back-off information and a second back-off information, wherein the second back-off information is received when the UE monitors a response for the first preamble (2515). The method also includes the UE transmits a second preamble to the network after the back-off interval is finished (2520).