Frequency Hopping Signaling via PUCCH Sequences
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and 5G, face challenges in efficiently managing frequency hopping information across transmission time intervals (TTIs), which affects data transmission quality and interference randomization in multi-user environments.
Innovation Solution
The method involves signaling frequency hopping information through dedicated sequences or resources, such as LBT sequences, allowing devices to implicitly indicate and implement frequency hopping patterns, thereby optimizing resource allocation and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping information is explicitly signaled in current wireless technologies, then data transmission quality and interference randomization are improved, but signaling overhead and resource efficiency deteriorate
Solution Approach 1:
The patent combines frequency hopping information with uplink grant indications by mapping both types of information onto the same physical uplink grant channel (PUCCH) resources. This merging eliminates separate signaling channels for frequency hopping, thereby reducing signaling overhead while maintaining the ability to convey both grant and frequency hopping information efficiently
Solution Approach 2:
The patent makes the PUCCH resources serve multiple functions: they simultaneously carry uplink grant indications and frequency hopping information. This multi-functionality allows the system to convey multiple types of control information through a single signaling mechanism, improving resource efficiency without sacrificing transmission quality
2Object-affected harmful factors
If frequency hopping is implemented across TTIs, then interference randomization is improved, but device complexity and resource management difficulty increase
Solution Approach 1:
The patent performs preliminary action by indicating frequency hopping information in advance through the PUCCH resources before actual data transmission occurs. This allows receiving devices to pre-configure their frequency hopping patterns and resource allocations, simplifying real-time resource management while achieving interference randomization across multiple TTIs
3Productivity
If dedicated sequences are used for frequency hopping indication, then resource allocation efficiency is improved, but sequence detection complexity increases
Solution Approach 1:
The patent introduces PUCCH resources as an intermediary mechanism that carries frequency hopping information in a standardized, pre-defined format. This intermediary structure simplifies the detection process by providing a known reference framework, reducing the complexity of sequence detection while maintaining efficient resource allocation through dedicated sequence mapping
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for signaling frequency hopping information for data transmissions sent over a plurality of transmission time intervals. In some cases, a sequence may be selected and transmitted to indicate whether frequency hopping is used and/or additional information about how the frequency hopping will occur.