Frequency Hopping for TBoMS PUSCH Transmission
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Solution Overview
Problem
Existing frequency hopping patterns for the Physical Uplink Shared Channel (PUSCH) are not applicable when the time-domain resource allocation is in a Transport Block processing over multi-slots (TBoMS) pattern, limiting frequency diversity gain and coverage capability.
Innovation Solution
A frequency hopping method is introduced that determines the number of hops or time-domain length of a hop based on a protocol agreement, allowing for intra-slot, inter-slot, intra-transport-block, or inter-retransmission frequency hopping, enabling frequency hopping according to the specific pattern and parameters configured by the protocol or base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing frequency hopping patterns (inter-nominal-PUSCH-repetition frequency hopping and inter-slot frequency hopping) are used for TBoMS transmission, then the configuration is simple, but the frequency diversity gain is limited and coverage capability is insufficient
Solution Approach 1:
The patent introduces dynamic frequency hopping patterns that adapt to different transmission scenarios. The base station can configure different hopping patterns (first frequency hopping pattern for initial transmission, second frequency hopping pattern for retransmission) based on the specific TBoMS transmission requirements, enabling the system to dynamically optimize frequency diversity gain without being constrained by a single fixed pattern
Solution Approach 2:
The patent changes the parameters of frequency hopping by introducing intra-slot frequency hopping and inter-retransmission frequency hopping mechanisms. The hopping parameters (number of hops, time-domain length of hop, hopping frequency) are adjusted based on the transmission block size, slot configuration, and retransmission needs, allowing the system to optimize frequency diversity for different TBoMS scenarios
2Area of stationary object
If frequency hopping is enabled for TBoMS pattern, then coverage capability is improved, but the determination of number of hops and time-domain length becomes more complex
Solution Approach 1:
The base station determines the number of hops and time-domain length of hop based on feedback information about the TBoMS transmission configuration. The base station receives information about the transport block size, slot duration, and transmission requirements, then uses this feedback to calculate appropriate hopping parameters that optimize coverage while maintaining manageable complexity
Solution Approach 2:
The patent performs preliminary determination of hopping parameters before the actual frequency hopping transmission begins. The base station pre-calculates the number of hops and time-domain length based on the configured TBoMS parameters, so that during transmission, the UE simply needs to follow the pre-determined pattern without complex real-time calculations
Data Source
AI summary
A frequency hopping method is performed by a terminal device, and includes: determining a frequency hopping pattern of a physical uplink shared channel (PUSCH); determining at least one of a number of hops or a time-domain length of a hop, wherein a transmission pattern of the PUSCH is transport block processing over multi-slots (TBoMS); and performing frequency hopping according to the frequency hopping pattern of the PUSCH, and the at least one of the number of hops or the time-domain length of the hop.