PUSCH Beam Indication for Multi-Panel Cooperative Uplink
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Solution Overview
Problem
Existing PUSCH transmission mechanisms fail to support cooperative transmission of multiple antenna panels and cannot meet the requirements of services needing improved transmission, such as ultra-reliable and low latency communication (URLLC).
Innovation Solution
Configuring non-codebook SRS resource sets associated with multiple antenna panels and beam-related information, using CSI-RS to detect uplink channel information, and sending indication information to terminals for cooperative transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a codebook-based PUSCH transmission mechanism is used, then the transmission mechanism is simple and easy to implement, but it cannot support cooperative transmission of multiple antenna panels and cannot meet requirements of services needing improved transmission
Solution Approach 1:
The patent segments the SRS resources into multiple resource sets, where each resource set corresponds to a specific antenna panel. This segmentation allows the system to independently configure and manage multiple antenna panels for cooperative transmission, thereby achieving multi-panel support while maintaining manageable complexity through structured organization
Solution Approach 2:
The patent introduces a new dimension of spatial diversity by enabling cooperative transmission across multiple antenna panels. By adding the panel dimension to the traditional single-antenna transmission model, the system achieves enhanced adaptability for cooperative transmission scenarios without fundamentally redesigning the entire transmission mechanism
2Adaptability or versatility
If only spatial relationship information is indicated to the terminal, then the indication information is concise, but it cannot support cooperative transmission of multiple antenna panels
Solution Approach 1:
The patent extracts the spatial relationship information from the comprehensive transmission parameters and indicates it separately through dedicated fields. By taking out only the essential spatial relationship information and indicating it explicitly, the system achieves multi-panel support while minimizing information overhead by not transmitting redundant parameters
Solution Approach 2:
The patent designs the indication information structure to serve multiple functions: it simultaneously indicates spatial relationship information, identifies antenna panels, and supports cooperative transmission configuration. This multi-functional design enables support for multiple antenna panels while keeping the indication information concise and efficient
3Adaptability or versatility
If multiple SRS resource sets are configured for non-codebook transmission with multiple antenna panels, then cooperative transmission is supported, but the configuration complexity increases
Solution Approach 1:
The patent segments SRS resources into multiple resource sets, with each set dedicated to a specific antenna panel. This segmentation approach enables cooperative transmission by allowing independent configuration of each panel's SRS resources while maintaining overall system manageability through the structured resource set framework
Solution Approach 2:
The patent performs preliminary configuration of SRS resource sets and their associations with antenna panels before actual transmission occurs. By pre-configuring the resource sets and establishing their relationships with specific panels in advance, the system enables cooperative transmission while reducing real-time configuration complexity
Data Source
AI summary
The present disclosure relates to a PUSCH indication method, comprising: configuring for a terminal a plurality of sounding reference signal (SRS) resource sets having a “non-codebook” function, a plurality of SRS resources in the SRS resource sets being associated with beam-related information; sending to the terminal a channel state information reference signal (CSI-RS) corresponding to each SRS resource set; performing uplink channel information state detection according to an SRS sent by the terminal, and determining, according to the detection result, a plurality of beams for uplink cooperative transmission and indication information corresponding to each beam; and sending multiple pieces of indication information to the terminal. According to the present disclosure, a plurality of beams for cooperative transmission and indication information corresponding to each beam can be determined; a terminal is instructed by means of multiple pieces of indication information corresponding to the plurality of beams, and the terminal can determine, according to the indication information, the plurality of beams for cooperative transmission and antenna panels corresponding to the plurality of beams, such that by means of cooperative transmission by the plurality of antenna panels, the requirements of a service requiring enhanced PUSCH transmission can be satisfied.