Dynamic Control Channel Allocation for Wireless Systems
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in radio resource allocation, leading to higher system overhead, reduced flexibility, and increased complexity, power consumption, and interference due to fixed control channel allocation methods, which are inadequate for adapting to changing application requirements in next-generation communication systems.
Innovation Solution
A method for dynamically determining the time-frequency location of control channels based on the ID of the receiver, allowing flexible allocation of radio resources, which includes determining the channel time-frequency location using preset rules such as hash functions or modular functions, and indicating the data time-frequency location to the receiver through the control channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed control channel allocation is used, then system overhead is reduced and implementation is simplified, but flexibility in system design and spectrum utilization is reduced
Solution Approach 1:
The patent implements dynamic control channel allocation where the time-frequency location of control channels is determined based on terminal ID and configurable parameters rather than fixed positions. This allows the system to adapt to different scenarios and requirements while maintaining manageable complexity through standardized procedures.
Solution Approach 2:
The patent introduces configurable parameters (such as search space configurations, resource allocation parameters) that can be adjusted to optimize system performance for different applications. These parameter changes enable flexible adaptation without requiring complex reconfiguration of the entire system architecture.
2Ease of manufacture
If fixed control channel allocation is used, then implementation is simplified, but spectrum utilization is reduced
Solution Approach 1:
The patent employs dynamic resource allocation that adapts control channel positions based on traffic conditions, terminal requirements, and network state. This dynamic approach improves spectrum utilization by allocating resources more efficiently according to actual needs rather than reserving fixed positions.
Solution Approach 2:
The patent creates a universal control channel allocation framework that can serve multiple purposes and different terminal types through configurable parameters. This multi-functional approach allows the same mechanism to optimize for various scenarios, improving overall spectrum efficiency while maintaining implementation simplicity.
3Reliability
If blind detection is performed by terminals, then control channel coverage is improved, but terminal complexity, power consumption and processing time are increased
Solution Approach 1:
The patent performs preliminary configuration of control channel search spaces and allocation parameters at the network side before terminal detection. This preliminary action reduces the search space for terminals, allowing them to perform blind detection more efficiently with reduced complexity and power consumption while maintaining coverage.
Solution Approach 2:
The patent uses configurable parameters to define search space characteristics and allocation patterns that can be optimized for different terminal capabilities and scenarios. By adjusting these parameters, the system can balance between coverage reliability and terminal processing requirements.
4Reliability
If blind detection is performed by terminals, then control channel coverage is improved, but power consumption is increased
Solution Approach 1:
The patent pre-configures search space parameters and control channel allocation patterns at the network side, enabling terminals to perform targeted blind detection with reduced search spaces. This preliminary configuration significantly reduces terminal power consumption while maintaining adequate control channel coverage for reliable operation.
Data Source
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AI summary
The embodiments of the invention relate to a method of allocating a radio resource and a device utilizing the same. The method comprises: a transmitter determines, according to an identification (ID) of a receiver at a present state, and based on a redefined rule, a channel time-frequency location where a control channel associated with the present state of the receiver is; and the transmitter transmits, via the control channel at the channel time-frequency location, and to the receiver, data time-frequency location indication information, a size of time-frequency resource occupied by data, and a data modulation and coding scheme. In the method of allocating the radio resource and the device utilizing the same according to the embodiments of the invention, the transmitter determines, according to the ID of the receiver at the present state, the time-frequency location where the control channel associated with the present state of the receiver is, and indicates, via the control channel, and to the receiver, the time-frequency location for transmitting data, flexibly allocating control channels for use by a transmitter and receiver by actual requirements, increasing efficiency, performance, and adaptability of a wireless communication system.