Wireless Control Resource Pool Latency Reduction
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Solution Overview
Problem
Inefficient utilization of communication resources in wireless communication networks, particularly in V2X communications, leads to latency issues due to the minimum periodicity of control resource pools, which hinders timely data transmission.
Innovation Solution
Modifying the resource pool configuration by transmitting alternative resource pool information to UEs, allowing for time division multiplexing with interleaved subframes or frequency division multiplexing to reduce latency, enabling efficient control and data resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If control resource pool minimum periodicity is used, then resource allocation simplicity is maintained, but transmission latency increases
Solution Approach 1:
The patent divides the control resource pool into multiple frequency portions (first frequency portion and second frequency portion) with different periodicities. The first frequency portion uses a longer periodicity for simplicity while the second frequency portion uses a shorter periodicity to reduce latency, allowing each segment to serve different latency requirements independently
Solution Approach 2:
The patent implements dynamic resource allocation by allowing UEs to be configured with different periodicities for different frequency portions of the control resource pool. This dynamic approach enables the system to adapt to varying latency requirements without sacrificing the simplicity of resource allocation entirely
2Device complexity
If conventional resource pool configuration is used, then system complexity is reduced, but resource utilization efficiency decreases
Solution Approach 1:
The patent applies different periodicities to different frequency portions of the control resource pool. The first frequency portion uses a longer periodicity while the second frequency portion uses a shorter periodicity, allowing each local region to be optimized for its specific requirements while maintaining overall system manageability
Solution Approach 2:
The patent introduces a frequency dimension to the resource pool configuration, dividing the resource pool across multiple frequency portions rather than using a single uniform configuration. This dimensional approach enables differentiated periodicities without significantly increasing overall system complexity
3Ease of manufacture
If uniform periodicity is used for control resources, then implementation simplicity is maintained, but data transmission timeliness deteriorates
Solution Approach 1:
The patent segments the control resource pool into multiple frequency portions with different periodicities. This segmentation allows the system to maintain implementation simplicity in the first frequency portion while achieving better timeliness in the second frequency portion, balancing simplicity and performance
Solution Approach 2:
The patent changes the periodicity parameter across different frequency portions of the control resource pool. By varying this key parameter, the system can optimize data transmission timeliness in specific frequency portions without fundamentally changing the implementation approach for the entire system
Data Source
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AI summary
A method and apparatus for managing a control resource pool in wireless communications is described. The method comprising receiving, at a user equipment, UE (115), an alternative resource pool information signal from a network entity (105), the alternative resource pool information signal corresponding to a configuration of a resource pool having one or more control resources of the control resource pool and one or more data resources of a data resource pool used for transmissions during wireless communications, wherein each of the one or more control resources of the control resource pool are divided into a first frequency portion and a second frequency portion, and wherein the configuration of the resource pool is signaled based on a starting value and a number value for the one or more control resources and the one or more data resources, determining, at the UE (115), a first control resource from the first frequency portion of the control resource pool based on the alternative resource pool information signal, transmitting, at the UE (115), one or more first control information on the first control resource from the first frequency portion of the control resource pool, determining, at the UE (115), a second control resource from the second frequency portion of the control resource pool based on the first control resource and transmitting, at the UE (115), one or more second control information on the second control resource from the second frequency portion of the control resource pool. Furthermore, the respective network entity is described.