Monitoring Overlapping Coresets for Beam Alignment

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Solution Overview

Problem

In wireless communication systems, the overlap of multiple control resource sets (coresets) associated with different beams can lead to reduced data rates and inefficient beam management, resulting in unreliable communication due to fewer coresets being monitored and potential beam misalignment during transport block reception.

Innovation Solution

Implementing a method where a wireless device or base station monitors and communicates based on all or at least one of the two beams associated with a selected coreset, allowing for increased flexibility and reliability by ensuring all overlapping coreset beams are monitored, and using a candidate beam as the default pathloss reference signal to optimize power consumption and beamforming.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If only the selected coreset and other coresets having the same beam as the selected coreset are monitored, then the device complexity is reduced, but the data rate decreases and reliability is compromised

Engineering Contradiction:

Improvenumber of coresets monitoredVSAvoiddata rate

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent applies partial action by monitoring a subset of coresets (those with the same beam as the selected coreset) rather than all configured coresets. This selective monitoring approach balances device complexity reduction with maintaining adequate data rate performance by focusing monitoring resources on the most relevant coresets.

Inventive Principle:

Principle #16Partial or excessive action

2Device complexity

If only the selected coreset and other coresets having the same beam as the selected coreset are monitored, then the device complexity is reduced, but the reliability of communication decreases

Engineering Contradiction:

Improvenumber of coresets monitoredVSAvoidcommunication reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent applies partial action by monitoring a subset of coresets (those with the same beam as the selected coreset) rather than all configured coresets. This selective monitoring approach balances device complexity reduction with maintaining adequate reliability by focusing monitoring resources on the most relevant coresets.

Inventive Principle:

Principle #16Partial or excessive action

3Power

If the selected beam is used as the default pathloss reference signal, then the transmission power increases, but the beam alignment may be less precise

Engineering Contradiction:

Improvetransmission powerVSAvoidbeam alignment precision

Core Design Contradiction:

PowerVSMeasurement precision

Solution Approach 1:

The patent applies parameter changes by dynamically selecting the default pathloss reference signal based on the relationship between the selected beam and transport block beams. When the selected beam is not associated with any transport block beam, the selected beam's reference signal is used; otherwise, the associated beam's reference signal is used. This parameter switching optimizes both power consumption and beam alignment precision.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20220329387A1Monitoring Overlapping Coresets

Publication Date: 2022.10.13 COMCAST CABLE COMM LLC

AI summary

Beam management and control resource set (CORESET) monitoring may be used in wireless communications. Multiple CORESETs associated with different TCI states may overlap in time. A first CORESET, of the multiple CORESETs, may be activated with a plurality of TCI states and may be selected for monitoring. Other CORESETs, of the multiple CORESETs, having the same TCI states or at least one of the TCI states of the first CORESET may also be monitored.