PUSCH Frequency Hopping Offset Design Within Uplink BWP Limits
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Solution Overview
Problem
Current technologies face challenges in managing frequency hopping for Physical Uplink Shared Channel (PUSCH) transmissions by terminals, leading to potential exceedance of frequency domain resources when using inter-slot frequency hopping, which affects uplink channel performance and full duplex communication feasibility.
Innovation Solution
A method and apparatus for frequency hopping processing that involves configuring and determining target offsets for adjacent hops based on available frequency domain offsets, ensuring frequency hopping occurs in different time units to prevent resource exceedance within the uplink BWP or subband limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inter-slot frequency hopping is used for PUSCH transmission, then frequency diversity gain is obtained and uplink channel transmission performance is improved, but frequency domain resources may exceed the uplink BWP or subband limits
Solution Approach 1:
The patent introduces a target offset parameter that is determined based on the first offset and the frequency domain resources occupied by adjacent hops. This parameter change ensures that the frequency domain resources of hops in different time units remain within the uplink BWP or subband limits while still achieving frequency diversity gain through frequency hopping.
Solution Approach 2:
The patent uses the target offset as an intermediary parameter to mediate between the first offset (configured by base station) and the actual frequency domain resources of adjacent hops. By determining the target offset based on the specified condition, the system ensures that frequency hopping operations do not exceed resource limits while maintaining transmission performance.
2Device complexity
If frequency hopping is configured without considering time unit differences, then frequency domain resource allocation is simplified, but resource conflicts occur in full duplex communication scenarios
Solution Approach 1:
The patent makes the frequency hopping configuration dynamic by determining the target offset based on whether adjacent hops are in the same or different time units. When hops are in different time units, the target offset is determined based on the first offset and frequency domain resources, ensuring proper resource allocation for full duplex operation while adapting to different communication scenarios.
Solution Approach 2:
The patent applies different offset determination rules based on the local condition of time unit differences. For adjacent hops in the same time unit, one rule applies; for adjacent hops in different time units, another rule applies (determining target offset based on first offset and frequency domain resources). This local differentiation resolves resource conflicts in full duplex scenarios without overly complicating the overall configuration.
Data Source
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AI summary
The present disclosure provides a frequency hopping processing method and device. The method comprises: receiving one or more first offsets configured by a base station for a terminal, the first offsets being available frequency domain offsets corresponding to two adjacent hops when the terminal transmits a PUSCH by means of frequency hopping within the range of frequency domain resources occupied by an uplink BWP; when the two adjacent hops are located in different time units in the time domain and the occupied frequency domain resources satisfy a specified condition, determining a target offset of the two adjacent hops at least on the basis of the first offsets; and on the basis of the target offset, transmitting the PUSCH to the base station by means of frequency hopping within the different time units. The present disclosure achieves the purpose of transmitting a PUSCH by means of frequency hopping within different time units, ensures that a frequency domain resource occupied by a terminal side when transmitting the PUSCH by means of frequency hopping would not exceed the range of frequency domain resources occupied by an uplink BWP or an uplink subband, improves the transmission performance of an uplink channel, and improves the feasibility of full-duplex communication.