Dynamic Resource Allocation for LTE Control Channels
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Solution Overview
Problem
Current communication systems, particularly in LTE-Advanced, face inefficiencies in resource allocation for downlink control channels and data transmission, leading to underutilization of communication resources, especially in scenarios like machine-type communications which require minimal signaling overhead and efficient use of bandwidth.
Innovation Solution
A communication network device and method that dynamically allocates communication resource elements for downlink control data and other types of data, utilizing unused resource element groups in the control channel region for efficient transmission of machine-type communication data, thereby optimizing resource usage and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication resource elements are allocated for downlink control data transmission in LTE-Advanced, then control channel functionality is ensured, but resource utilization efficiency deteriorates due to unused resource element groups
Solution Approach 1:
The patent enables communication resource elements to serve multiple functions: they are allocated for downlink control data transmission when needed, and can be dynamically repurposed for other data transmissions when control data requirements are reduced, thereby eliminating wasted resources and improving overall utilization efficiency
Solution Approach 2:
The patent implements dynamic allocation of communication resource elements, allowing the system to adaptively adjust resource assignment based on actual control data transmission needs, enabling unused resource element groups to be reallocated for other purposes in real-time
2Reliability
If dedicated resources are allocated for machine-type communication data, then communication reliability is improved, but signaling overhead increases and resource efficiency decreases
Solution Approach 1:
The patent allows communication resource elements to be used for multiple purposes including machine-type communication data transmission, eliminating the need for dedicated resource allocations and reducing signaling overhead while maintaining communication reliability through flexible resource usage
Solution Approach 2:
The patent enables machine-type communication devices to utilize available communication resources without requiring extensive dedicated resource allocation and signaling, allowing the system to self-organize resource usage and reduce overhead for machine-type communications
Data Source
AI summary
A communication network device of a communication system is described comprising a transmitter configured to transmit data in a plurality of frames, wherein in each frame, a plurality of communication resource elements is provided to be allocated for data transmission of downlink control data, wherein a data communication resource element is defined by a frequency range and a communication time interval within the frame and a communication resource allocator configured to allocate a first set of the communication resource elements of the plurality of communication resource elements provided to be allocated for data reception of downlink control data in a frame for the transmission of the downlink control data and to allocate a second set of the communication resource elements of the plurality of communication resource elements provided to be allocated for data reception of downlink control data in the frame that have not been allocated for the transmission of downlink control data for the transmission of data of another type than the downlink control data.