Sensing Signal Parameter Signaling for B5G/6G Interference Control
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Solution Overview
Problem
Inconsistent understandings between terminals and base stations regarding sensing signal formats and requirements lead to ineffective sensing in future mobile communication systems like B5G and 6G, causing interference and failure to meet sensing requirements.
Innovation Solution
A message transmission method and apparatus that allows devices to exchange and align on signal parameters such as waveform, sub-carrier spacing, guard interval, bandwidth, and power to ensure integrated communication and sensing signals meet sensing requirements, with centralized resource allocation and interference control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If integrated communications and sensing is implemented in B5G/6G systems, then spectrum efficiency and system performance are improved, but inconsistent understandings between terminals and base stations on sensing signal formats cause sensing requirements to be unmet
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting sensing signal parameters (waveform, sub-carrier spacing, guard interval, bandwidth, duration, time domain interval, frequency domain resource, sending signal power) based on channel conditions and sensing requirements. The base station configures these parameters through RRC signaling and adjusts them adaptively to ensure both spectrum efficiency and reliable sensing performance.
Solution Approach 2:
The patent implements feedback mechanisms where terminals report sensing requirements and channel state information to the base station, and the base station adjusts sensing signal configurations based on this feedback. This closed-loop control ensures that sensing requirements are met while optimizing spectrum utilization through adaptive parameter adjustment.
2Object-affected harmful factors
If centralized resource allocation is implemented for sensing signals, then interference control is improved, but device complexity increases due to message transmission and coordination
Solution Approach 1:
The patent uses RRC signaling as an intermediary mechanism to coordinate between base stations and terminals for sensing resource allocation. The RRC layer acts as a mediator that exchanges configuration messages (RRCReconfiguration, RRCRelease) to allocate sensing resources without requiring direct complex coordination between all devices, thus reducing overall system complexity while maintaining centralized control for interference management.
3Measurement precision
If detailed signal parameter configuration is exchanged between devices, then sensing performance is improved, but message transmission overhead increases
Solution Approach 1:
The patent segments the signal configuration process into distinct phases: initial RRC connection setup, RRCReconfiguration for sensing parameter configuration, and RRCRelease for resource release. Each phase transmits only the necessary parameters for that specific function, reducing overall message overhead while ensuring complete sensing parameter configuration when needed.
Data Source
AI summary
A message transmission method, and a communication device are provided. The message transmission method includes: receiving, by a second device, a first message sent by a first device. The first message indicates at least one of the following: a waveform of a first signal requested or suggested by the first device, a sub-carrier spacing of the first signal requested or suggested by the first device, a guard interval of the first signal requested or suggested by the first device, a bandwidth of the first signal requested or suggested by the first device, a duration of the first signal requested or suggested by the first device, a time domain interval of the first signal requested or suggested by the first device, sending signal power of the first signal requested or suggested by the first device, or a signal format of the first signal requested or suggested by the first device.