Terminal Access Configuration for Limited Time-Frequency Resources
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Solution Overview
Problem
Existing wireless communication systems in intelligent cockpits face challenges in ensuring reliable terminal access due to limited time-frequency resources, particularly in scenarios where multiple terminals initiate access simultaneously, leading to inefficient resource utilization and communication failures.
Innovation Solution
A flexible access method and apparatus that configures terminals with specific access manners (contention-based or contention-free) using access configuration information, allowing terminals to send access information on pre-determined time-frequency resources, reducing parsing complexity and resource conflicts, and optimizing resource allocation for group or batch access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional random access method is used, then terminals can access the network, but the limited time-frequency resource can carry only very limited terminal access at a time
Solution Approach 1:
The patent applies dynamics by making the access resource allocation flexible and adaptive rather than fixed. The network control apparatus dynamically determines access resource allocation information based on network condition information, allowing the system to adjust resource allocation in real-time according to actual network conditions and terminal access requirements, thereby resolving the contradiction between reliable access and access capacity.
Solution Approach 2:
The patent changes the parameter of resource allocation from fixed to variable. By determining access resource allocation information based on network condition information, the system can adjust time-frequency resources, access configurations, and other parameters dynamically, enabling the limited resources to serve more terminals effectively while maintaining access reliability.
2Adaptability or versatility
If fixed time-frequency resource is allocated for random access, then resource allocation is simple, but the terminal cannot flexibly access the network based on requirement
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple access resources and access configurations in advance. The network control apparatus determines access resource allocation information based on network condition information before terminals attempt access, allowing terminals to select from pre-prepared resource options that match their specific requirements, thereby achieving flexibility without excessive complexity during the access process.
3Reliability
If most available time-frequency resources are used to maintain service of another terminal, then service quality is guaranteed, but only limited fixed time-frequency resource is allocated for random access
Solution Approach 1:
The patent applies dynamics by implementing dynamic resource allocation that can adapt to different network conditions. The network control apparatus determines access resource allocation information based on real-time network condition information, allowing the system to flexibly allocate resources between maintaining existing services and accommodating new access requests, thereby balancing service quality and access efficiency.
Data Source
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AI summary
An access method and apparatus, and a communications system provided in embodiments of this application can implement flexible access to a network based on a requirement of a terminal in different access scenarios. The method is applied to a communications system, the communications system includes a network control apparatus and at least one terminal, and the method includes: The network control apparatus sends access configuration information, where the access configuration information is used to configure an access manner of the at least one terminal, and the access manner includes a first access manner or a second access manner. A first terminal in the at least one terminal sends access information of the first terminal to the network control apparatus based on the access configuration information, where the access information is used to request access. The network control apparatus receives the access information from the first terminal.