V2X Carrier Allocation via Service Layer Identification
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Solution Overview
Problem
The limited quantity of ProSe Per Packet Priority (PPPP) values in V2X services makes it difficult to accurately reflect Quality of Service (QoS) requirements for delay and reliability, and it is challenging to allocate resources on different carriers for various V2X services with the same PPPP values.
Innovation Solution
A wireless communication method where a terminal device determines a carrier or carrier set for transmitting or receiving services based on a service identification generated on the service layer, allowing for classification and assignment of different service identifications to different types of services, and establishing a corresponding relationship between the service identification and the carrier or carrier set, enabling more granular allocation of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If PPPP values are used for service prioritization, then service priority management is simplified, but the quantity of services that can be differentiated is limited
Solution Approach 1:
The patent segments service identification into two independent parts: PPPP value (for priority level) and service ID (for specific service identification). This segmentation allows the system to maintain simple priority management through PPPP while simultaneously achieving fine-grained service differentiation through service ID, resolving the contradiction between simplicity and versatility.
Solution Approach 2:
The patent adds a new dimension (service ID) to the existing PPPP-based priority system. Instead of relying solely on the single dimension of PPPP values, the system now operates in a two-dimensional space where PPPP provides the priority level and service ID provides the specific service identity, enabling both simple prioritization and detailed service differentiation simultaneously.
2Device complexity
If PPPP values are used for resource allocation, then resource management is simplified, but accurate QoS reflection for different services is compromised
Solution Approach 1:
The patent segments the resource allocation identification into PPPP (for priority-based resource management) and service ID (for precise QoS characterization). This allows the system to maintain simplified resource management through PPPP-based prioritization while achieving accurate QoS reflection through the additional service ID dimension, which can encode specific QoS parameters.
Solution Approach 2:
The patent introduces service ID as an additional dimension to the resource allocation mechanism. While PPPP provides the priority level for resource management, service ID enables precise identification of specific QoS requirements, allowing the system to both simplify resource management and accurately reflect diverse QoS needs.
3Manufacturing precision
If service identification is added to carrier determination, then resource allocation precision is improved, but system complexity increases
Solution Approach 1:
The patent segments the carrier determination process into two independent steps: first determine carrier based on PPPP (priority-based coarse allocation), then determine specific resources within the carrier based on service ID (fine-grained allocation). This segmentation improves resource allocation precision while keeping each step relatively simple, avoiding the need for a completely complex new system.
Solution Approach 2:
The patent extends the carrier determination from a single-dimension PPPP-based approach to a two-dimensional approach incorporating both PPPP and service ID. This dimensional extension enables precise resource allocation by first selecting the appropriate carrier through PPPP and then allocating specific resources within that carrier using service ID, achieving high precision without overwhelming complexity.
Data Source
AI summary
The application provides a wireless communication method, a terminal device, and a network device. The method includes: a terminal device determining, according to a service identifier of a service to be transmitted, a carrier or a carrier set for sending or receiving the service to be transmitted; and the terminal device sending or receiving the service to be transmitted on a carrier or a carrier set corresponding to the service identifier, wherein the service identifier is a service code point or a service primitive of the service to be transmitted generated at the service layer, the service code point is a code of a service generated by the service to be transmitted on the service layer, and the service primitive is a textual description of the service generated by the service to be transmitted on the service layer.