Base Station Control Channel Resource Allocation
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Solution Overview
Problem
Existing radio communication systems face inefficiencies in resource utilization due to the high frequency and beam-based transmission schemes for control channels, leading to wasted frequency domain resources and inflexible beam selection.
Innovation Solution
The proposed solution involves determining a transmission configuration parameter for a first control area used for common control message transmission, and sending first indication information through a physical downlink broadcast channel or a preset position in a second control area, where the time domain symbol set of the second control area is a subset of that in the first control area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam-based transmission scheme is used for common control channel at high frequency, then coverage and reliability are improved, but frequency domain resource utilization deteriorates
Solution Approach 1:
The patent introduces dynamic beam indication through DCI messages, allowing the base station to flexibly select and indicate beams for control channel transmission based on current channel conditions and UE locations. This dynamic approach replaces static beam scanning with adaptive beam selection, improving resource utilization while maintaining reliability
Solution Approach 2:
The patent changes the transmission parameters by introducing beam indication fields in DCI messages and allowing dynamic adjustment of beam-related parameters such as beam width, direction, and resource allocation. This enables the system to adapt beam characteristics to match actual transmission needs, reducing resource waste
2Speed
If predetermined narrow beams are used for control channel transmission, then transmission directionality and signal strength are improved, but flexibility in beam selection deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where UEs report channel state information and beam quality metrics to the base station. The base station uses this feedback to dynamically select appropriate beams for control channel transmission, ensuring both directionality and adaptability to current channel conditions
Solution Approach 2:
The system transitions from static predetermined beams to dynamic beam selection based on real-time channel conditions and UE feedback. The base station can adjust beam parameters dynamically through DCI indications, maintaining signal strength while adapting to changing transmission requirements
3Reliability
If radio frequency beams are weighted in time domain for diversity coding, then transmission robustness is improved, but time domain resource utilization deteriorates
Solution Approach 1:
The patent merges beamforming with OFDM frequency domain processing, allowing diversity coding to be achieved through frequency domain resource allocation rather than time domain weighting. This integration enables robust transmission while preserving time domain resources for data transmission
Data Source
AI summary
Provided is an information sending method, including: a base station determining a transmission configuration parameter associated with a first control region, where the first control region is used for transmitting a common control message; and determining first indication information according to the transmission configuration parameter, and sending the first indication information at a preset position of a second control area. A time domain symbol set corresponding to the second control area is a subset of a time domain symbol set corresponding to the first control area. Further provided is an information detection method, including: receiving first indication information used for indicating a transmission configuration parameter of a first control area, and detecting the common control information according to the first indication information. Further provided are an information sending device and an information detecting device.