V2X Receiving Resource Pool Allocation Beyond SIB Size Limits
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Solution Overview
Problem
In vehicle-to-X (V2X) scenarios, existing systems face limitations in configuring multiple receiving resource pools and parameters due to size constraints of system information blocks (SIBs), leading to inflexible resource allocation and parameter transmission for terminal devices supporting different synchronization references and working modes.
Innovation Solution
A method for resource allocation that involves a network device allocating multiple receiving resource pools with different synchronization references, using both SIBs and dedicated RRC signaling to indicate these pools, and transmitting multiple SIBs to support various parameter configurations for terminal devices operating in different formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network device configures multiple receiving resource pools through SIB, then the terminal device can communicate with further terminal devices using different synchronization references, but the SIB size limitation prevents indicating all receiving resource pools
Solution Approach 1:
The patent divides the indication of receiving resource pools into two segments: SIB provides basic configuration for terminal devices in idle state, while dedicated RRC signaling provides additional configuration for terminal devices in connected state. This segmentation allows the system to support multiple receiving resource pools beyond SIB size limitations.
Solution Approach 2:
The patent introduces a new dimension by using terminal device state (idle vs. connected) as an additional parameter to determine which configuration method to use. Terminal devices in idle state use SIB configuration, while terminal devices in connected state use dedicated RRC signaling, thereby expanding the overall configuration capability.
2Loss of information
If the SIB includes multiple parameters for all terminal devices, then comprehensive parameter transmission is achieved, but the SIB size limitation restricts the number of parameters that can be transmitted
Solution Approach 1:
The patent segments parameter transmission into two channels: SIB transmits common parameters applicable to all terminal devices, while dedicated RRC signaling transmits additional parameters for specific terminal devices in connected state. This resolves the contradiction by distributing parameter transmission across two separate channels.
Solution Approach 2:
The patent applies partial action by having SIB transmit only the essential common parameters needed by all terminal devices, while leaving additional parameters to be transmitted through dedicated RRC signaling for terminal devices that require them.
3Measurement precision
If the network device determines the working mode of terminal devices and transmits corresponding parameters, then parameter accuracy is improved, but terminal devices lack flexibility in selecting working modes
Solution Approach 1:
The patent inverts the traditional approach by allowing terminal devices to autonomously select their working modes based on their capabilities and requirements, rather than having the network device determine and assign working modes. Terminal devices then use the selected working mode to interpret parameters from SIB or dedicated RRC signaling.
Solution Approach 2:
The patent enables terminal devices to serve themselves by autonomously determining their working modes and selecting appropriate parameter configurations. This self-service capability grants terminal devices flexibility in working mode selection while the network device provides the necessary parameter information through SIB or dedicated signaling.
Data Source
AI summary
Embodiments of the present application relate to a method for resource allocation, a network device, and a terminal device. The method includes allocating, by the network device, multiple receiving resource pools corresponding to different synchronization references to the terminal device, where the multiple receiving resource pools are used by the terminal device to receive data transmitted by a further terminal device; determining, by the network device, at least one receiving resource pool in the multiple receiving resources; transmitting, by the network device, a system information block (SIB) to the terminal device, where the SIB is used to indicate the at least one receiving resource pool.