V2X Packet Reception Range Determination Beyond Base Station Coverage
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Solution Overview
Problem
Existing communication systems, particularly in vehicle-to-everything (V2X) systems, face challenges in determining accurate packet reception areas for terminals, especially in scenarios where terminals are out of base station coverage or in inter-cell communication.
Innovation Solution
A method and apparatus for determining packet reception areas by processing control signals, providing location information, and transmitting feedback, utilizing absolute location and difference values to enhance packet reception accuracy in V2X systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals use base station coverage for packet communication, then communication reliability is improved, but coverage area is limited and inter-cell communication becomes complex
Solution Approach 1:
The patent divides the communication system into base station coverage areas and terminal direct communication areas. Terminals outside base station coverage can independently establish direct communication links, segmenting the overall communication architecture to extend coverage without compromising reliability in covered areas.
Solution Approach 2:
The patent introduces location information and packet reception area parameters as intermediaries to enable terminals to determine whether they are within the packet reception area of transmitting terminals. This mediator mechanism allows seamless transition between base station coverage and direct terminal communication.
2Measurement precision
If terminals determine packet reception area using location information, then reception accuracy is improved, but information processing complexity increases
Solution Approach 1:
The patent changes the parameter representation from absolute location coordinates to relative packet reception area parameters. By using difference values between current location and reference location, the system maintains high reception accuracy while simplifying the information that needs to be processed and transmitted.
Solution Approach 2:
The patent extracts only the necessary location difference information needed for packet reception area determination, rather than transmitting complete absolute location data. This extraction approach reduces information processing complexity while maintaining the precision needed for accurate reception area calculation.
3Measurement precision
If terminals transmit absolute location information, then location accuracy is improved, but communication overhead increases
Solution Approach 1:
The patent extracts and transmits only the location difference value relative to a reference point rather than complete absolute location information. This selective extraction maintains the necessary location accuracy for determining packet reception areas while significantly reducing the amount of data that must be communicated between terminals.
4Area of stationary object
If terminals communicate in out-of-coverage scenarios, then coverage area is extended, but communication reliability decreases
Solution Approach 1:
The patent performs preliminary determination of packet reception areas using location information before actual packet transmission occurs. By pre-establishing the communication parameters and reception areas, terminals can reliably communicate in out-of-coverage scenarios without requiring real-time base station intervention, thus extending coverage while maintaining reliability.
Data Source
AI summary
A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The communication method and system may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus for determining a reception area of a packet in a V2X system are provided. In described aspects, a reception terminal may receive location information of a transmitting terminal and range information of transmitted data, and may determine whether to provide feedback regarding the transmitted data based on the location information and the range information.