Sidelink Secondary Carrier State Control for Multi-Carrier NR V2X
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Solution Overview
Problem
Existing 5G NR V2X communication systems are limited by single-carrier data transmission capabilities, leading to reduced communication quality when large data requirements are present, and existing LTE systems with multiple carriers are inefficient in managing carrier states, resulting in high power consumption.
Innovation Solution
Implementing a mechanism for network devices to configure and manage multiple secondary carriers for sidelink communication, with activated and deactivated states indicated to both transmission and reception user equipment, allowing efficient resource allocation and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-carrier data transmission is used, then device complexity is reduced, but communication quality deteriorates when large data requirements are present
Solution Approach 1:
The patent segments the communication system into multiple carriers (primary carrier and secondary carriers) to handle different data transmission requirements. Each carrier can be independently activated or deactivated, allowing the system to divide large data transmission tasks across multiple carriers while maintaining manageable complexity through structured carrier state management.
2Reliability
If multiple secondary carriers are activated for multi-carrier sidelink communication, then communication quality is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic carrier activation and deactivation mechanisms where secondary carriers can be activated or deactivated based on current communication requirements. This dynamic state management allows the system to adapt power consumption to actual needs, activating multiple carriers only when high data transmission is required and deactivating them when not needed.
Solution Approach 2:
The system changes the operational state parameter of carriers (activated/deactivated) to control power consumption. By transitioning carriers between different operational states based on traffic conditions, the system optimizes the balance between communication quality and power consumption.
3Productivity
If multiple secondary carriers are configured, then data transmission capability is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal carrier management mechanism that handles multiple secondary carriers through standardized activation and deactivation procedures. This multi-functional approach allows the same management framework to handle any number of secondary carriers, improving data transmission capability without proportionally increasing management complexity.
Data Source
AI summary
Embodiments of this application relate to a wireless communication method applied to transmission user equipment (Tx UE), including: receiving first secondary carrier status indication information from a network device, to indicate that each of a plurality of secondary carriers is in an activated state or a deactivated state, the plurality of secondary carriers are used for multi-carrier sidelink communication between the transmission user equipment and at least one reception user equipment, and each of the at least one reception user equipment corresponds to at least one of the plurality of secondary carriers; and sending second secondary carrier status indication information to each reception user equipment, to indicate that each of the at least one secondary carrier is in an activated state or a deactivated state.