Critical Communication Resource Pools for Low-Latency Wireless Alerts
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Solution Overview
Problem
Existing wireless communication systems face challenges in ensuring low latency and high reliability for emergency notifications, particularly in V2X and D2D communications, due to the limitations of current resource allocation methods that lead to congestion and interference during exceptional situations.
Innovation Solution
A user equipment with a transmitter and receiver is configured to utilize multiple resource pools with distinct configurations for transmitting and receiving critical communication notifications, allowing for instantaneous resource access and prioritization of emergency messages, while other UEs adjust their transmission to avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single shared resource pool is used for all transmissions in exceptional situations, then resource allocation simplicity is improved, but transmission reliability and low latency are worsened due to congestion and interference
Solution Approach 1:
The patent divides the single shared resource pool into multiple distinct resource pools (first resource pool for critical communication notifications, second resource pool for other transmissions). This segmentation allows critical emergency messages to have dedicated resources, eliminating congestion and interference while maintaining manageable complexity through structured organization.
Solution Approach 2:
Different resource pools are configured with distinct parameters (frequency locations, time slots, bandwidth parts) tailored to specific transmission needs. The first resource pool is optimized for critical notifications with immediate access, while the second resource pool serves other purposes, allowing each pool to have locally optimized quality for its specific function.
2Ease of operation
If random resource selection is used in the exceptional resource pool, then ease of operation is improved, but transmission reliability is worsened due to collisions and interference
Solution Approach 1:
The patent segments resource access by creating separate resource pools: the first resource pool uses random selection for simple critical notifications, while the second resource pool uses scheduled or coordinated access for other transmissions. This eliminates collisions by separating traffic types into different resource domains.
Solution Approach 2:
The first critical communication notification acts as an intermediary that reserves or indicates resources in the second resource pool. This intermediary mechanism allows the system to coordinate resource usage between different transmission types, preventing collisions while maintaining ease of access for critical messages.
3Reliability
If multiple resource pools with distinct configurations are used, then transmission reliability is improved by reducing interference, but device complexity is worsened
Solution Approach 1:
The patent segments communications into distinct categories (critical notifications vs. other transmissions) with dedicated resource pools. This segmentation improves reliability by eliminating interference between different traffic types, while the clear functional separation actually simplifies management compared to trying to manage all traffic in a single pool.
Solution Approach 2:
Resource pools are pre-configured with distinct parameters before operation begins. This preliminary configuration reduces real-time management complexity by establishing clear rules and allocations in advance, allowing UEs to autonomously select appropriate pools without complex dynamic negotiations.
4Loss of time
If instantaneous resource access is enabled for critical notifications, then latency is reduced, but resource congestion is worsened in the exceptional pool
Solution Approach 1:
The patent segments the exceptional resource pool into a first resource pool dedicated to critical notifications and a second resource pool for other transmissions. This segmentation allows instantaneous access for critical messages without contributing to congestion in the overall exceptional pool, as critical notifications use dedicated resources that are isolated from other traffic.
Solution Approach 2:
The patent extracts critical communication notifications from the general exceptional resource pool and places them in a separate first resource pool with instantaneous access characteristics. This extraction removes the source of latency for critical messages while preventing them from contributing to congestion in the remaining exceptional pool resources.
Data Source
AI summary
A user equipment for wireless communications is provided. The user equipment includes a transmitter and a receiver. A first resource pool includes a first plurality of resources for transmission. A second resource pool includes a second plurality of resources for transmission. The second resource pool configuration is different from the first resource pool configuration or is equal to the first resource pool configuration. The transmitter is configured to transmit a first critical communication notification being a first message in the first resource pool, wherein the first critical communication notification indicates that a second message is to be transmitted in the second resource pool. Moreover, the transmitter is configured to transmit the second message in the second resource pool after transmitting the first critical communication notification or at a same time when transmitting the first critical communication notification. Moreover, a third resource pool and a fourth resource pool is provided.