UE SUL Capability Indication via Band Combination Signaling
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Solution Overview
Problem
In the early deployment of NR, it is challenging for user equipment (UE) to effectively indicate its capability to support supplementary uplink (SUL) frequency to the network side, leading to difficulties in network configuration and coverage optimization.
Innovation Solution
A method for UE to determine and report its SUL frequency support capability to the network side, using indication information conveyed through preset data bits or identifiers, allowing the network to configure UE appropriately based on its SUL frequency support conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If SUL frequency is introduced to improve uplink coverage, then uplink coverage is improved, but the complexity of capability indication increases
Solution Approach 1:
The patent merges the SUL capability indication with the existing band combination indication process. The network device indicates SUL frequency information by combining it with band combination parameters, allowing the UE to determine SUL support capability through existing indication mechanisms rather than requiring separate dedicated indication fields.
Solution Approach 2:
The patent makes the band combination indication field serve multiple functions: it indicates both the band combination configuration and the SUL frequency support capability simultaneously. This multi-functional approach allows the existing indication mechanism to convey additional information about SUL support without increasing overall system complexity.
2Area of stationary object
If SUL frequency is introduced to improve uplink coverage, then uplink coverage is improved, but the difficulty of capability detection increases
Solution Approach 1:
The patent implements a feedback mechanism where the network device sends indication information about SUL frequency support through downlink signaling, and the UE provides feedback by determining and reporting its SUL capability based on this indication. This bidirectional feedback loop enables efficient capability detection without requiring complex measurement procedures.
Solution Approach 2:
The network device performs preliminary action by pre-configuring and indicating SUL frequency information to the UE before the UE needs to utilize SUL resources. This advance indication allows the UE to prepare its capability determination in advance, simplifying the detection process rather than requiring complex real-time measurements.
Data Source
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AI summary
Disclosed in the present invention is a method for reporting capability, a user equipment, and a computer storage medium. The method includes: determining a support capability for a supplementary uplink (SUL) frequency; generating indication information of the support capability of UE for the SUL frequency based on the support capability for the SUL frequency; and reporting the indication information of the support capability for the SUL frequency to a network side.