Dynamic Channel Allocation for Wireless Communication Devices
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in channel utilization, where channels far from the primary channel are underutilized despite being available, leading to reduced overall frequency band utilization efficiency.
Innovation Solution
A wireless communication device that allocates channels dynamically by allowing terminals to request and allocate non-consecutive channels, using a resource-block-based OFDMA communication scheme, where resource blocks can be allocated across multiple channels to improve channel utilization efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If channels are sequentially selected from adjacent channels and added to the common channel, then the common channel and adjacent channels are used highly frequently, but channels far from the common channel are used low frequently, resulting in low overall channel utilization efficiency
Solution Approach 1:
The patent segments the channel allocation process by introducing multiple primary channels instead of a single common channel. Each primary channel serves as an independent base for allocating adjacent channels, which segments the previously sequential allocation pattern and enables parallel channel usage across different segments. This resolves the contradiction by allowing both frequent use of adjacent channels and effective utilization of distant channels through the multi-primary-channel structure.
Solution Approach 2:
The patent transitions from a one-dimensional sequential channel allocation (single common channel extending to adjacent channels) to a two-dimensional allocation structure with multiple primary channels. This dimensional change allows channels to be allocated in parallel across different primary channel bases, enabling both high-frequency use of adjacent channels and effective utilization of distant channels simultaneously, thereby improving overall channel utilization efficiency while maintaining allocation flexibility.
2Productivity
If a single common channel is used as the system baseline, then channel allocation is simple, but the number of simultaneously communicating terminals is limited and overall channel utilization is reduced
Solution Approach 1:
The patent applies multi-functionality by enabling each primary channel to serve as an independent base for terminal communication. Multiple primary channels can simultaneously support different terminal communications, allowing the system to handle more terminals at once. Each primary channel with its adjacent channels forms a functional unit that can operate independently, increasing the system's capacity to communicate with multiple terminals simultaneously while maintaining manageable complexity through standardized allocation rules.
Solution Approach 2:
The patent introduces dynamic channel allocation where terminals can be allocated to different primary channels and their adjacent channels based on communication needs. This dynamic structure allows the system to adaptively assign channels to maximize the number of simultaneously communicating terminals. The flexibility in allocating terminals across multiple primary channels and their adjacent channels enables the system to optimize terminal capacity while maintaining a structured allocation framework.
Data Source
AI summary
According to one embodiment, a wireless communication device includes a receiver configured to receive from each of a plurality of other wireless communication devices first information specifying at least one communication resource requested to be allocated; and a transmitter configured to transmit second information specifying at least one communication resource allocated to each of the other wireless communication devices based on the first information. The transmitter is configured to transmit signals via the communication resources specified in the second information and the receiver is configured to receive signals via the communication resources specified in the second information.