Downlink Control Information Format for SRS Resource Scheduling
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Solution Overview
Problem
Current radio communication systems for fifth-generation cellular networks face challenges in efficiently communicating between base station apparatuses and terminal apparatuses, particularly in scheduling physical downlink shared channels and utilizing sounding reference signals effectively.
Innovation Solution
The implementation of a communication method and apparatus that includes a receiver for receiving a physical downlink control channel and a transmitter for transmitting a physical uplink control channel, where the downlink control information format includes information indicating the resource of a sounding reference signal, enabling efficient scheduling of physical downlink shared channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the downlink control information format is extended to include sounding reference signal resource information, then the scheduling capability of physical downlink shared channels is improved, but the complexity of the control information format increases
Solution Approach 1:
The downlink control information format is designed to serve multiple functions: it schedules both physical downlink shared channels and indicates sounding reference signal resources. This multi-functionality allows a single control message to accomplish what would otherwise require separate signaling, improving scheduling capability while managing format complexity through functional integration.
2Productivity
If sounding reference signal resources are indicated in downlink control information, then the efficiency of uplink communication is improved, but the amount of control information transmitted increases
Solution Approach 1:
The sounding reference signal resource indication is merged with the downlink control information that schedules the physical downlink shared channel. By combining these signaling functions into a single control message, the patent improves uplink communication efficiency through coordinated resource allocation while avoiding the overhead of separate signaling transmissions.
Data Source
AI summary
The present invention includes a receiver configured to receive a physical downlink control channel, and a transmitter configured to transmit a physical uplink control channel, wherein the receiver receives downlink control information carried on the physical downlink control channel, a downlink control information format of the downlink control information is used for scheduling of a physical downlink shared channel, the downlink control information format includes information indicating a resource of a sounding reference signal, and the physical uplink control channel is transmitted, based on the information indicating the resource of the sounding reference signal.