Wireless Beam Scheduling for Low-Interference V2X Links
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently allocating resources and reducing interference between platoon groups, particularly in vehicle-to-everything (V2X) communication scenarios, which are critical for enhancing mobile broadband communication and ensuring reliability and low latency.
Innovation Solution
A method and apparatus for beam scheduling in wireless communication systems, involving the exchange of beam scheduling request and confirm messages between terminals to optimize resource allocation and reduce interference, utilizing transmission and receiving beam direction, timing, and resource pool information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam scheduling request and confirm messages are exchanged between terminals, then resource allocation efficiency is improved, but communication overhead and message exchange complexity increase
Solution Approach 1:
The beam scheduling request message is transmitted in advance before actual data communication occurs. This preliminary action allows the first terminal to proactively negotiate beam scheduling parameters (including transmission beam direction, receiving beam schedule, timing information, and resource pool information) with the second terminal, ensuring that beam alignment and resource allocation are established before data transmission begins, thereby improving resource allocation efficiency while managing complexity through structured advance planning
Solution Approach 2:
The beam scheduling confirm message serves as a feedback mechanism where the second terminal responds to the scheduling request with confirmed parameters and its own transmission beam direction information. This feedback loop enables both terminals to have consistent understanding of beam scheduling arrangements, resolving potential conflicts and ensuring coordinated communication, thus improving reliability while the structured feedback process helps manage message exchange complexity
2Reliability
If beam scheduling information is exchanged between platoon group leader nodes, then interference between platoon groups is reduced, but communication protocol complexity increases
Solution Approach 1:
Each platoon group leader node independently determines and transmits its own transmission beam direction information and receives beam scheduling information specific to its local group context. This localized approach allows each leader to optimize beam parameters for its specific platoon group's spatial configuration and interference environment, reducing interference through locally-adapted beam scheduling while avoiding the need for complex system-wide coordination protocols
Solution Approach 2:
The beam scheduling process is segmented into independent request and confirm message exchanges between pairs of platoon group leaders, rather than requiring a centralized coordination mechanism. Each platoon group's beam scheduling is handled independently through dedicated message exchanges, which simplifies the overall protocol complexity by breaking down the problem into manageable independent segments while still achieving interference reduction through coordinated beam parameter negotiation
Data Source
AI summary
The present disclosure relates to a method for operating a first terminal in a wireless communication system, wherein the first terminal may transmit a beam scheduling request message to a second terminal. The beam scheduling request message includes transmission beam direction information of the first terminal and receiving beam schedule information of the first terminal. In addition, the first terminal may receive a beam scheduling confirm message from the second terminal. The beam scheduling confirm message includes transmission beam direction information of the second terminal and receiving beam schedule information of the second terminal. In addition, the first terminal may transmit data to the second terminal based on the beam scheduling confirm message.