Wireless Signal Transmission Using BWPs and Frequency Hopping
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently transmitting and receiving signals, particularly in scenarios where the transmission bandwidth exceeds the maximum capacity of devices, such as in the context of Integrated Sensing and Communication (ISAC) applications.
Innovation Solution
A method and device for wireless communication that involves determining transmission bandwidth parts (BWP) based on configuration information and performing frequency hopping within these BWPs, including the use of virtual BWPs and sub-BWPs, to efficiently transmit signals that exceed the maximum transmission bandwidth size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transmission bandwidth is increased to support ISAC applications, then the sensing and communication performance is improved, but the device's maximum transmission bandwidth capacity is exceeded
Solution Approach 1:
The patent divides the wide bandwidth into multiple Transmission Bandwidth Parts (BWPs), each within the device's maximum transmission capability. The terminal determines multiple BWPs based on configuration information and transmits different signals or signal portions in different BWPs, enabling the system to support bandwidths exceeding device limits while maintaining reliable transmission within each BWP segment.
2Productivity
If frequency hopping is performed to transmit signals across multiple BWPs, then the bandwidth utilization is improved, but the transmission complexity increases
Solution Approach 1:
The patent implements dynamic frequency hopping where the terminal switches between different BWPs based on scheduling information and configuration. The transmission frequency is dynamically adjusted across multiple BWPs for the same or different signals, enabling efficient bandwidth utilization while the network manages the complexity through centralized configuration and scheduling.
3Measurement precision
If multiple BWPs are configured for different signal types, then the signal transmission accuracy is improved, but the configuration complexity increases
Solution Approach 1:
The patent assigns specific BWPs to specific signal types (e.g., sensing signals, communication signals, uplink data) based on their different requirements. Each BWP is optimized for its designated signal type, improving transmission accuracy for each signal while the network manages configuration complexity through centralized BWP assignment and activation control.
Data Source
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AI summary
A method by which a terminal transmits a signal in a wireless communication system, according to at least one of the embodiments disclosed in the present specification, comprises: receiving configuration information related to signal transmission of the terminal through uplink layer signaling; determining one or more transmission bandwidth parts (BWP) on the basis of the configuration information; and transmitting a first signal in a first transmission BWP from among the determined one or more transmission BWPs, wherein the terminal can transmit, at least twice, the first signal through frequency hopping in the first transmission BWP on the basis that the first transmission BWP exceeds the maximum transmission bandwidth size of the terminal.