Multi-Antenna Resource Allocation via Segmented Control Channels
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Solution Overview
Problem
Current wireless communication systems face limitations in scheduling flexibility due to the inability to allocate different resources for multiple transmission blocks, especially when using multi-antenna stations, which results in reduced performance compared to MIMO arrangements.
Innovation Solution
A method and apparatus for controlling resource allocation in a communication system that allows for simultaneous communications via multiple antennas by receiving and sending information on multiple control channels, enabling independent resource allocation for each antenna and flexible scheduling of transport blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmission blocks are carried on the same resources using multi-antenna arrangements, then resource utilization is improved, but scheduling flexibility deteriorates because allocation of different resources for multiple transmission blocks is not possible
Solution Approach 1:
The patent segments the resource allocation by introducing separate control channels (first control channel and second control channel) for different transmission blocks. Each control channel independently carries resource allocation information for specific antenna ports, enabling differentiated resource scheduling for multiple transmission blocks while maintaining efficient resource utilization through multi-antenna arrangements.
2Device complexity
If directional antennas are arranged to point towards each other as a single cell, then device complexity is reduced, but transmission diversity gain deteriorates because channel quality of the two links can be significantly different
Solution Approach 1:
The patent applies local quality by associating different control channels with different antenna ports based on their specific channel conditions. The first control channel is associated with a first antenna port and the second control channel with a second antenna port, allowing each antenna to be optimized for its local channel quality while maintaining a unified cell structure.
Data Source
AI summary
This disclosure relates to control of communications by a communication device in a service area. Resources for simultaneous communications via a plurality of antennas in the service area are allocated and information of said allocated resources are sent via a plurality of control channels to the communication device. The communication device receives the plurality of control channels and can communicate simultaneously via the plurality of antennas based on the information.