Signaling Information Transmission for Multi-TRP Channel State
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Solution Overview
Problem
Determining channel state information of uplink channels in multi-TRP and multi-panel transmission is a pressing issue in wireless communication, particularly for improving the reliability of ultra-reliable low latency communications (URLLC).
Innovation Solution
A method and apparatus for transmitting signaling information that involves receiving and determining channel state information of M physical uplink channels, where M is a positive integer greater than 1, by configuring signaling information to indicate this information, and using modules for receiving and determining this data, implemented on a communication node with processors and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-TRP and multi-panel transmission is implemented to improve wireless communication throughput and reliability, then the spectral efficiency and reliability of the system are improved, but the complexity of determining channel state information for multiple physical uplink channels increases
Solution Approach 1:
The patent segments the channel state information determination process by introducing separate indication fields in downlink control information for different uplink channels (PUCCH and PUSCH). Each channel type has its own indication field that points to specific sounding reference signal resources, allowing independent and simplified determination of channel state information for each channel type without complex joint processing
Solution Approach 2:
The patent introduces sounding reference signals as an intermediary mechanism. These reference signals are transmitted separately for different uplink channels, and the channel state information is derived from these intermediary signals rather than directly from the physical channels themselves, simplifying the determination process in multi-TRP scenarios
2Reliability
If signaling information is configured to indicate channel state information of M physical uplink channels (M>1), then the reliability of URLLC is improved, but the quantity of signaling information and processing overhead increase
Solution Approach 1:
The patent merges the channel state information indication for multiple uplink channels into a unified downlink control information structure. Instead of separate indications for each channel, a single DCI message contains multiple indication fields that collectively provide channel state information for M physical uplink channels, reducing overall signaling overhead while maintaining reliability
Solution Approach 2:
The patent creates universal indication fields in the downlink control information that can indicate channel state information for any combination of uplink channels. The same DCI structure and indication mechanism serves multiple functions across different uplink channel types (PUCCH, PUSCH) and different numbers of channels (M>1), eliminating the need for channel-specific signaling protocols
Data Source
AI summary
Provided are a method for transmitting signaling information, a communication node and a storage medium. The method for transmitting signaling information includes the following steps: signaling information is received; and channel state information of M physical uplink channels is determined based on the signaling information, where M is a positive integer greater than 1.