Communication Apparatus With UE-Triggered SSB Activation
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Solution Overview
Problem
Existing 5G communication systems face challenges in efficiently managing network energy consumption through on-demand synchronization signal block (SSB) and system information block (SIB) operations, particularly in secondary cells (SCells), without impacting legacy UEs and ensuring timely synchronization and measurement quality.
Innovation Solution
The implementation of UE-side triggering mechanisms, including wake-up signals (WUS) based on traffic status, channel quality, and position information, to dynamically request activation or deactivation of SCells and common signals like SSB, allowing network-side adaptation of SSB and SIB transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If on-demand SSB and SIB operations are implemented in 5G systems, then network energy consumption is reduced, but synchronization timing and measurement quality may be impacted
Solution Approach 1:
The patent implements dynamic SSB transmission where the base station adaptively activates or deactivates SSB transmission in SCells based on real-time UE requests, traffic conditions, and channel quality. This dynamic approach allows the system to transmit SSB only when necessary (reducing energy consumption) while ensuring synchronization quality is maintained when UEs actually need it (improving reliability)
2Productivity
If SCells are activated for data transmission, then communication efficiency is improved, but energy consumption increases
Solution Approach 1:
The patent enables UE-side triggering mechanisms where UEs autonomously monitor their own traffic conditions, buffer status, and channel quality, then generate requests to activate or deactivate SCells and SSB transmission accordingly. This self-service approach ensures that energy-consuming operations are performed only when the UE actually needs them, optimizing both communication efficiency and energy consumption without requiring constant network control
3Reliability
If common signals like SSB are transmitted continuously, then synchronization is maintained, but energy consumption increases
Solution Approach 1:
The patent implements periodic SSB transmission triggered by UE requests rather than continuous transmission. The base station receives periodic requests from UEs based on their traffic needs and channel conditions, then activates SSB transmission only during these periodic intervals. This transforms continuous energy-consuming transmission into periodic transmission that maintains synchronization reliability while significantly reducing overall energy consumption
Data Source
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AI summary
The present disclosure provides a communication apparatus, a base station, and methods for a communication apparatus and for a base station. The communication apparatus comprises circuitry, which determines, based on one or a combination of traffic status, a buffer status of the communication apparatus, a result of a measurement of channel quality, or position information related to a position of the communication apparatus, whether to transmit a request for activation, extension of activity, or deactivation of a cell, or a common signal for the cell or a transmission occasion in the cell; and a transmitter, which, in operation, transmits the request.