Multi-Panel PUSCH Layer Allocation With Lower DCI Overhead
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Solution Overview
Problem
The existing wireless communication systems face challenges in efficiently supporting high data traffic, increased transmission rates, and low latency while managing resources effectively, particularly in the context of next-generation mobile communication systems.
Innovation Solution
A method and apparatus for transmitting and receiving a Physical Uplink Shared Channel (PUSCH) through multiple panels, with configuration information and downlink control signaling to manage layer allocation and precoding for each panel, reducing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-panel PUSCH transmission is implemented with individual layer allocation for each panel, then transmission capacity and efficiency are improved, but control signaling overhead increases
Solution Approach 1:
The patent segments the PUSCH transmission into multiple panels, each with its own layer allocation. The DCI is divided into multiple precoding-related fields, where each field corresponds to a specific panel and indicates the number of layers for that panel. This segmentation allows independent optimization of each panel's transmission while maintaining overall system efficiency.
Solution Approach 2:
The patent applies partial action by configuring the size of precoding-related fields in the DCI based on the actual number of layers for each panel. Instead of always using maximum field sizes, the field sizes are adjusted to match the actual transmission requirements, reducing unnecessary overhead while maintaining the capability to support various transmission configurations.
2Adaptability or versatility
If the size of precoding-related fields in DCI is increased to support maximum layers for all panels, then transmission flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent implements dynamics by making the size of precoding-related fields variable rather than fixed. The field sizes are dynamically determined based on the configured maximum number of layers for each panel and the actual transmission requirements. This allows the system to adapt the signaling overhead to match the actual transmission flexibility needs.
Solution Approach 2:
The patent changes the parameter of field size in the DCI based on the number of layers configured for each panel. By adjusting the field size parameter according to actual transmission requirements, the system achieves both flexibility and efficiency, avoiding the need for always using maximum field sizes.
Data Source
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AI summary
Disclosed are a method and device for transmitting and receiving a PUSCH in a wireless communication system. The method, according to one embodiment of the present disclosure, comprises the steps of: receiving, from a base station, configuration information related to a PUSCH transmission, the configuration information comprising, with respect to multi-panel PUSCH transmission, first information for setting the maximum number of layers for a first panel and second information for setting the maximum number of layers for a second panel; receiving DCI from the base station, the DCI comprising an SRS resource set indicator field, a first precoding-related field, and a second precoding-related field; and transmitting the multi-panel PUSCH to the base station on the basis of the value of the SRS resource set indicator field in the DCI.