Beamforming Control Channel Region Segmentation
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Solution Overview
Problem
Wireless communication systems face challenges in securing a wide frequency band to meet increasing data traffic demands, particularly at higher frequencies where propagation path loss is significant, reducing service coverage and requiring techniques like beamforming to extend propagation distance and reduce interference.
Innovation Solution
The method and apparatus for transmitting and receiving a control channel by beamforming in a wireless communication system, which involves determining control information and transmission beams, mapping beam region information, and transmitting this information using specific beam regions to enhance directivity and reduce interference, allowing for efficient resource configuration and control information signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is used to extend transmission distance and reduce interference, then propagation loss is reduced and service coverage is extended, but the complexity of searching for and detecting control channels increases
Solution Approach 1:
The control channel region is divided into multiple beam regions, where each beam region contains control information transmitted by a specific beam. This segmentation allows the mobile station to focus its detection efforts on specific beam regions corresponding to active beams, rather than searching the entire control channel region, thereby reducing detection complexity while maintaining comprehensive coverage.
Solution Approach 2:
The patent introduces a beam region dimension to the control channel structure, organizing control information not only by time and frequency but also by beam direction. This additional dimensional organization enables the mobile station to efficiently navigate and detect control channels by leveraging beam region information, reducing the search space and computational complexity.
2Productivity
If a wide frequency band is used to meet increasing data traffic demands, then data rate is improved, but propagation path loss increases at higher frequencies
Solution Approach 1:
The patent applies beamforming to concentrate transmitted energy in specific spatial directions rather than omnidirectionally. By focusing the transmission beam toward the mobile station, the system achieves higher effective data rates while reducing energy loss in directions away from the intended receiver, thereby compensating for the increased path loss inherent in high-frequency wideband transmission.
Data Source
AI summary
A method and apparatus for transmitting and receiving a control channel by beamforming in a wireless communication system are provided. The transmission method includes determining a plurality of pieces of control information to be transmitted on control channels and determining transmission beams for use in beamforming transmission of the plurality of pieces of control information, mapping at least one piece of beam region information indicating at least one beam region in a control channel region and the plurality of pieces of control information to the at least one beam region in the control channel region, at least one piece of control information corresponding to the same transmission beam being arranged in one beam region, and transmitting the mapped beam region information and the mapped control information by transmission beams corresponding to the beam regions in the control channel region.