Sounding Reference Signal Subband Configuration for Multiplexing
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Solution Overview
Problem
Current communication technologies face limitations in partial frequency sounding due to restricted values of start resource block indices and cyclic shifts, which affect the capacity and alignment of subbands, leading to reduced multiplexing capabilities and limited available configurations.
Innovation Solution
A method where a terminal device receives configurations for sounding reference signals, determines the size and index of a second subband based on provided configurations, ensuring the size is a multiple of four and the index is also a multiple of four, allowing for flexible transmission of sounding reference signals to support partial sounding scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If restricted values of start resource block indices and cyclic shifts are used for partial frequency sounding, then channel estimation can be performed, but multiplexing capacity and subband alignment are limited
Solution Approach 1:
The patent changes the parameter constraints by allowing start resource block indices and cyclic shifts to be any non-negative integers rather than restricted to specific values. This enables flexible configuration of sounding reference signals across different subbands, thereby increasing multiplexing capacity and adapting to various channel estimation scenarios without being limited by predetermined parameter sets.
2Ease of operation
If start resource block index and cyclic shift are restricted to specific values, then implementation is simplified, but subband alignment and configuration flexibility are reduced
Solution Approach 1:
The patent introduces dynamic configuration capabilities where the start resource block index and cyclic shift can be independently adjusted based on actual communication needs. The system dynamically determines these parameters rather than using fixed values, enabling flexible subband alignment while maintaining reliable channel estimation through proper parameter selection in each scenario.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. According to embodiments of the present disclosure, a terminal device receives, from a first network device, at least one configuration of a sounding reference signal (SRS) which comprises a first configuration of a first subband and a second configuration of a partial sounding. The terminal device determines a size of a second subband based on the first and second configurations. The size is multiple of four. The terminal device also determines an index of a start resource block of the second subband. The index of the start resource block is multiple of four. The terminal device transmits the SRS based on the size of the second subband and the index to the network device. In this way, the partial SRB is supported.