User Equipment Secondary Component Carrier Selection for FR2 RSRP Measurement
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Solution Overview
Problem
In carrier aggregation using intra-frequency in FR2, user equipment (UE) faces challenges in selecting a secondary component carrier (SCC) for reception quality measurement when no primary or secondary component carriers are allocated, leading to inadequate reference signal received power (RSRP) measurement, which affects the overall reception quality judgment.
Innovation Solution
The UE includes a control unit that selects and transmits the reception quality measurement result for a secondary component carrier among multiple SCCs allocated in the intra-frequency band, and a receiving unit that receives configuration information to specify the SCC for quality measurement, ensuring appropriate RSRP measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the UE monitors SSBs on any secondary CC when no PCC and PSCC exist in the intra-frequency band in FR2, then the UE can obtain RSRP measurement, but the network cannot obtain appropriate RSRP to judge the reception quality of the entire CA
Solution Approach 1:
The patent introduces configuration information as an intermediary mechanism that mediates between the UE's autonomous operation and the network's measurement requirements. The configuration information specifies which SCC should be the RSRP measurement target, allowing the UE to operate autonomously while ensuring the network receives accurate reception quality data for CA judgment.
2Productivity
If the UE selects an arbitrary SCC to monitor SSBs when only SCCs are allocated, then the UE can perform measurement, but the measurement result may not reflect the overall CA reception quality
Solution Approach 1:
The patent changes the parameter of measurement target selection from arbitrary UE decision to network-configured specification. By receiving configuration information that specifies the SCC index or identifier as the measurement target, the UE maintains measurement efficiency while improving reliability to ensure the measurement reflects overall CA reception quality.
3Quantity of substance
If the UE monitors SSBs on multiple SCCs, then the UE can obtain comprehensive measurement data, but the UE cannot decide which SCC to select among the plurality of SCCs
Solution Approach 1:
The patent extracts the selection decision-making function from the UE and places it in the network. The network sends configuration information that specifies which SCC should be the measurement target, eliminating the complexity of UE selection logic while maintaining the ability to monitor multiple SCCs when needed.
Data Source
AI summary
A user equipment executes carrier aggregation using a plurality of component carriers allocated in a predetermined band in a predetermined frequency range (FR2). In a case where only a plurality of secondary component carriers is allocated in the predetermined band, the user equipment selects a secondary component carrier that is a reception quality measurement target among the plurality of secondary component carriers. In addition, the user equipment transmits a reception quality measurement result.