UE Indication Feedback State Switching for Uplink Load Reduction
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Solution Overview
Problem
In HSDPA technology, user equipment (UE) continues to feed back channel quality indicators (CQI) periodically even when there is no data scheduling, resulting in unnecessary uplink indication information feedback, which wastes resources and increases power consumption.
Innovation Solution
A method where the UE is initially set to a deactivation state for indication information feedback, and upon receiving a feedback request from the network, it switches to an activation state with an adjustable feedback cycle based on network requests or downlink data reception, reducing unnecessary feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE continues to feed back CQI periodically according to protocol configuration, then the network can maintain channel quality information, but unnecessary uplink indication information feedback is generated when there is no data scheduling, wasting resources and increasing power consumption
Solution Approach 1:
The patent applies dynamics by introducing two operational states (first state and second state) for the UE's indication information feedback. The UE dynamically transitions between these states based on network scheduling activity. In the first state, the UE feeds back indication information periodically according to protocol configuration; in the second state, the UE suspends such feedback. This dynamic state transition mechanism allows the system to adapt feedback behavior to actual data scheduling needs, eliminating unnecessary feedback when no data is scheduled while maintaining reliable channel quality information when data transmission occurs.
2Productivity
If the UE feeds back indication information periodically, then the network has continuous channel quality information for scheduling decisions, but uplink resources are wasted and power consumption increases when there is no downlink data transmission
Solution Approach 1:
The patent applies periodic action by configuring the UE to feed back indication information periodically only when in the first state, rather than continuously regardless of network activity. The periodic feedback occurs according to protocol configuration parameters such as feedback period and subframe offsets. When the network schedules downlink data, the UE transitions to the first state and resumes periodic feedback. When no data is scheduled, the UE enters the second state and suspends feedback. This periodic action principle ensures continuous scheduling capability when needed while minimizing uplink resource consumption during idle periods.
3Measurement precision
If the UE maintains periodic CQI feedback according to configured parameters, then the network can make accurate scheduling decisions, but the UE power consumption increases unnecessarily during idle periods
Solution Approach 1:
The patent applies feedback by implementing a bidirectional signaling mechanism between the network and UE. The network sends scheduling indications to the UE, and the UE responds by transitioning between feedback states accordingly. When the network schedules downlink data, it triggers the UE to enter the first state and resume periodic indication information feedback. When no data is scheduled, the network's lack of scheduling indication causes the UE to enter the second state and suspend feedback. This feedback loop ensures that channel quality measurements remain accurate when data transmission occurs while minimizing UE power consumption during idle periods.
Data Source
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AI summary
Embodiments of the present invention provide a method, a user equipment, and a base station device for transmitting indication information. The method comprises: initially setting an indication information feedback mode of a user equipment to a deactivation state, where the user equipment in the deactivation state does not transmit indication information to a base station; and when receiving an indication information feedback request transmitted by a network side, setting the indication information feedback mode of the user equipment to an activation state, where the user equipment in the activation state uses an indication information feedback cycle to transmit the indication information to the base station. The embodiments of the present invention initially set a user equipment to a deactivation state of not transmitting indication information to the base station, set a user equipment to an activation state of transmitting indication information when a network side has transmitted an indication information feedback request, thus reducing an unnecessary uplink indication information feedback.