Sub-Band Indication for Flexible Wireless Resource Scheduling
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Solution Overview
Problem
The flexibility of scheduling in wireless communication systems is limited due to the use of wideband indication information for network-side devices, such as SRS resource, TPMI, and number of transmission layers indication, which restricts the ability to optimize resource allocation on a sub-band level.
Innovation Solution
Implementing sub-band indication information for SRS resource, precoding matrix, and number of transmission layers, allowing for flexible scheduling by indicating these parameters on a sub-band basis, thereby enabling more precise resource and antenna allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wideband indication information is used for SRS resource, TPMI, and number of transmission layers, then the indication information can be transmitted with simple structure, but the scheduling flexibility is poor
Solution Approach 1:
The patent divides the wideband indication information into sub-band indication information. Specifically, the SRS resource indication information, precoding matrix indication information, and number of transmission layers indication information are segmented by sub-band, allowing independent configuration and indication for each sub-band. This segmentation enables flexible scheduling while maintaining manageable information structure through hierarchical organization.
Solution Approach 2:
The patent applies local quality by allowing different indication information to be configured at different granularities (wideband vs. sub-band level) depending on local requirements. Each sub-band can have its own SRS resource, precoding matrix, and transmission layers indication, enabling optimized local configuration while maintaining overall system coherence through the hierarchical structure.
2Adaptability or versatility
If sub-band indication information is implemented for SRS resource and precoding matrix, then scheduling flexibility is improved, but the indication information overhead increases
Solution Approach 1:
The patent segments the indication information by sub-band, which allows the network to transmit sub-band indication information only when needed for specific scheduling decisions. This segmented approach enables flexible scheduling while controlling overhead by transmitting indication information at the appropriate granularity rather than always at the finest granularity.
Solution Approach 2:
The patent changes the parameter of indication information granularity from wideband to sub-band level. This parameter change allows the system to adapt the level of detail in indication information based on scheduling requirements, improving flexibility when needed while reducing overhead when coarse-grained indication is sufficient.
3Adaptability or versatility
If wideband number of transmission layers indication is used, then the indication structure is simple, but the adaptability for different sub-bands is limited
Solution Approach 1:
The patent segments the number of transmission layers indication by sub-band, allowing independent configuration of transmission layers for each sub-band. This enables the system to adapt to different channel conditions and requirements in different sub-bands while maintaining a structured hierarchical indication format that manages complexity.
Solution Approach 2:
The patent applies local quality by allowing different numbers of transmission layers to be indicated for different sub-bands based on local channel conditions and requirements. Each sub-band can have its own transmission layers configuration, enabling optimized local performance while the hierarchical structure maintains overall system manageability.
Data Source
AI summary
The present disclosure provides an indication information transmission method and a communication device. The method includes: transmitting an indication information, the indication information includes one or more of the following: sounding reference signal (SRS) resource indication information, precoding matrix indication information, number of transmission layers indication information and antenna panel indication information; at least one of the indication information included in the indication information is sub-band indication information.