UE Network Node Coordination Reciprocity Codebook Switching
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently coordinating user equipment (UE) and network nodes, particularly in switching between reciprocity-based and codebook-based communications, which can lead to reduced communication performance due to suboptimal parameter settings.
Innovation Solution
The method involves UE and network node coordination through the transmission and reception of capability information, allowing for the selection of appropriate communication modes based on channel state information measurements and sounding reference signals, thereby optimizing communication schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system uses fixed communication parameters for reciprocity-based or codebook-based communications, then the implementation is simple, but communication performance deteriorates due to suboptimal parameter settings
Solution Approach 1:
The patent implements dynamic parameter adjustment by enabling the network node and UE to exchange capability information and select between reciprocity-based and codebook-based communication modes based on current channel conditions. The system transitions from fixed parameters to adaptive parameters that change according to environmental conditions, resolving the contradiction between simple implementation and optimal performance.
Solution Approach 2:
The patent changes communication parameters dynamically by allowing the network node to receive capability information from the UE and select appropriate communication modes (reciprocity-based or codebook-based) based on channel state information measurements. This parameter adaptation enables optimal communication performance while maintaining manageable system complexity through structured capability exchange mechanisms.
2Reliability
If the system continuously adjusts communication modes to optimize performance, then communication performance improves, but power consumption increases
Solution Approach 1:
The patent applies preliminary action by having the UE transmit capability information to the network node in advance, enabling the network node to determine the appropriate communication mode before actual data transmission begins. This advance preparation allows optimal performance without continuous adjustments during active communication, reducing power consumption while maintaining high communication efficiency.
Solution Approach 2:
The patent implements periodic action through capability information exchange that occurs at specific intervals or trigger events rather than continuously. The system periodically updates communication mode selections based on changing conditions, balancing performance optimization with reduced power consumption compared to continuous adjustment mechanisms.
3Productivity
If the system uses reciprocity-based communications with multiple ports, then spectral efficiency improves, but device complexity increases due to additional coordinate information requirements
Solution Approach 1:
The patent applies universality by designing a capability information exchange mechanism that handles both reciprocity-based and codebook-based communications through a unified framework. The same capability exchange infrastructure supports multiple communication modes and port configurations, reducing overall system complexity while enabling high spectral efficiency when reciprocity-based communication with multiple ports is selected.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability information associated with performing reciprocity-based communications, the reciprocity-based communications being in accordance with one or more sounding reference signals associated with one or more ports. The UE may receive, in accordance with transmitting the capability information, at least one of an indication to perform reciprocity-based communications, an indication to perform codebook-based communications, or an indication to perform a combination of reciprocity-based communications and codebook-based communications, the codebook-based communications being in accordance with one or more channel state information measurements. Numerous other aspects are described.