Dynamic Resource Allocation in Wireless Subframes
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Solution Overview
Problem
Conventional communication systems fail to dynamically allocate frequency resources, leading to sub-optimal performance as they do not select the frequency resource that results in maximum gain for user equipment, thus necessitating a method for dynamic allocation of communication resources.
Innovation Solution
The method involves a wireless communication device receiving subframes at periodic intervals, with each subframe including selectively assignable resource element patterns, and decoding control channel resource elements to determine if a grant resource indicates information directed for the device, allowing for dynamic allocation of resource elements across subcarrier frequencies and time slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional non-frequency-selective scheduling is used, then device complexity is reduced and operation is simplified, but communication performance and resource allocation efficiency deteriorate
Solution Approach 1:
The patent implements dynamic frequency-selective scheduling where the eNodeB scheduler dynamically allocates specific frequency resources to user equipment based on real-time channel conditions, QoS requirements, and system load. This transforms the static non-frequency-selective scheduling into a dynamic system that adapts to changing conditions, thereby improving resource allocation efficiency while managing complexity through structured decision-making processes
Solution Approach 2:
The patent changes the scheduling parameter from non-frequency-selective to frequency-selective scheduling. This parameter change enables the system to consider frequency-domain channel variations and allocate resources based on frequency-specific channel quality indicators, leading to improved communication performance and more efficient resource utilization
2Reliability
If frequency-selective dynamic allocation is implemented, then communication performance and gain are improved, but system complexity and scheduling overhead increase
Solution Approach 1:
The patent employs feedback mechanisms where user equipment reports channel quality indicators (CQI) and other channel state information to the eNodeB scheduler. The scheduler uses this feedback to make informed frequency-selective scheduling decisions, thereby improving communication performance while keeping the complexity manageable through feedback-driven adaptive decision-making
Solution Approach 2:
The patent performs preliminary channel quality measurements and resource selection based on predicted channel conditions. By making scheduling decisions in advance based on available channel state information and then confirming or adjusting allocations, the system improves performance while reducing the complexity of real-time decision-making
Data Source
AI summary
A method of receiving information by a wireless communication device is provided. The method includes receiving a plurality of wireless subframes at a periodic interval, wherein an interval duration of the periodic interval is greater than a duration of each of the plurality of wireless subframes. The method further includes determining for each wireless subframe of the plurality whether the wireless subframe includes a grant resource that indicates that a resource unit pattern of a plurality of selectively assignable resource unit patterns of resource units of the subframe includes information for the communication device. A method of transmitting information by the wireless communication device is also provided.