Adaptive Beam Notification in Physical-Layer Control Signaling
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Solution Overview
Problem
In high-frequency communication systems, the path loss is significant, and the use of multiple antennas forms beams to mitigate this, but existing solutions fail to fully utilize bit fields for notifying beams in physical layer dynamic control signaling when the interval between control signaling and downlink signals is less than a threshold, leading to low resource utilization and potential communication failures due to simultaneous beam generation issues.
Innovation Solution
The method involves determining second information based on first information, including the number of bits, correspondence mapping tables, and position information for transmission parameters in control signaling, to optimize beam notification and resource utilization, ensuring effective communication even when intervals are below the threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the bit field for notifying beam in physical layer dynamic control signaling is not fully utilized when interval is less than threshold, then the signaling structure remains simple, but the resource utilization becomes low
Solution Approach 1:
The patent changes the parameter of bit field utilization by dynamically adjusting the number of bits used based on the time interval between control signaling and downlink signal. When the interval is less than a threshold, fewer bits are used (simpler structure), while when the interval is greater than or equal to the threshold, more bits are used (higher resource utilization). This resolves the contradiction by making the signaling structure adaptive rather than fixed.
2Speed
If the downlink signal is cached before physical layer dynamic control signaling is decoded, then the signal can be received promptly, but communication effectiveness cannot be guaranteed when beams cannot be generated simultaneously
Solution Approach 1:
The patent introduces a feedback mechanism where the terminal device feeds back information about the received downlink signal and the decoded control signaling to the network side. This feedback loop allows the system to verify whether the beam generation was successful and communicate effectively, thereby ensuring communication effectiveness while maintaining fast signal reception capability.
3Length of moving object
If multiple antennas are used to form beams to resist path loss, then the communication distance is extended, but the beam management complexity increases
Solution Approach 1:
The patent segments the beam management process into distinct phases: beam formation phase (using multiple antennas to create beams for extended communication distance) and beam indication phase (using control signaling to indicate which beam to use). By separating these functions, the system achieves extended communication distance while managing the complexity through structured phase separation rather than monolithic beam management.
Data Source
AI summary
Provided are methods and apparatuses for transmitting and receiving control signaling. The method include determining second information according to first information, where the second information includes at least one of: the number N of bits used in first control signaling to notify a first transmission parameter, a correspondence mapping table between an index value referenced by the first transmission parameter in the first control signaling and the value of the first transmission parameter, the type of the first transmission parameter notified by a predetermined indication field in the first control signaling, or position information of the bits used in the first control signaling to notify the first transmission parameter; and where the first information includes a relationship between a transmission time interval between the first control signaling and a first signal and a predetermined threshold K, where N and K are non-negative integers; and transmitting the first control signaling.