SRI Group Indicator for Multi-Beam Uplink Scheduling
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing sounding reference signal resource indicators (SRIs) for multiple uplink communications, leading to suboptimal resource allocation and increased power consumption due to the need for multiple DCI messages to schedule uplink communications via multiple beams.
Innovation Solution
The method involves transmitting and receiving SRI group indicators that indicate multiple SRIs for uplink communications, allowing mobile stations and base stations to configure and communicate via multiple beams associated with these SRIs, thereby reducing the need for individual SRI indications and conserving resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple DCI messages are used to schedule uplink communications via multiple beams, then the resource allocation can be flexible and adaptive, but the power consumption and communication resource usage increase
Solution Approach 1:
The patent combines multiple SRI indications into a single DCI message by introducing SRI groups, where each group contains multiple SRIs corresponding to different beams. This merging approach maintains the ability to schedule multiple beams while reducing the number of separate DCI messages, thereby lowering power consumption and communication overhead.
Solution Approach 2:
The single DCI message with SRI group indication serves multiple functions simultaneously: it schedules uplink communications across multiple beams, provides resource allocation for each beam, and enables flexible beam selection without requiring separate DCI messages for each beam, thus achieving multi-functionality with reduced signaling overhead.
2Manufacturing precision
If multiple DCI messages are transmitted to indicate SRIs for each beam, then precise beam-specific resource allocation is achieved, but the communication overhead and resource consumption increase
Solution Approach 1:
Multiple SRI indications that would otherwise require separate DCI messages are merged into a single DCI message through the SRI group structure. Each SRI within the group maintains its beam-specific resource allocation precision, while the overall communication overhead is reduced by consolidating the signaling into one message.
Solution Approach 2:
The patent introduces a new organizational dimension by grouping multiple SRIs together in an SRI group structure. This dimensional reorganization allows multiple beam-specific indications to be conveyed within a single DCI message framework, reducing communication resource consumption while preserving precise beam-specific allocation through the group's internal structure.
3Reliability
If individual SRI indications are sent for each beam, then accurate beam management is maintained, but the number of DCI messages and processing overhead increase
Solution Approach 1:
The patent merges multiple individual SRI indications into a unified SRI group indication within a single DCI message. This consolidation maintains accurate beam management by preserving the individual SRI information within the group structure, while significantly reducing the number of DCI messages and associated processing overhead.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive a sounding reference signal resource indicator (SRI) group indicator, the SRI group indicator indicating multiple SRIs for one or more uplink communications. The mobile station may transmit the one or more uplink communications via multiple beams associated with the multiple SRIs. Numerous other aspects are described.