Trunking Terminal DRX Configuration for Power Reduction
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Solution Overview
Problem
In broadband trunking systems, terminals in RRC idle state continuously sense the downlink control channel during group call services, leading to increased power consumption and reduced effective service time, as RRC-connected-state discontinuous reception is not applicable in these systems.
Innovation Solution
Configuring a discontinuous reception instruction based on group call configuration, where the terminal senses the physical channel during the active phase and stops sensing during the dormant phase, implementing connected-state single call discontinuous reception in a public-network standard to reduce power consumption and prolong service time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal continuously senses the downlink control channel during group call service in RRC idle state, then the service reliability is improved, but the power consumption increases and effective service time reduces
Solution Approach 1:
The patent implements discontinuous reception by configuring the terminal to sense the physical downlink control channel periodically according to DRX cycles (including on-duration timer, inactivity timer, and long DRX cycle) rather than continuously. This periodic sensing approach maintains service reliability by ensuring the terminal checks for paging messages at regular intervals while significantly reducing power consumption during dormant phases when the transceiver is turned off.
2Reliability
If the terminal continuously senses the downlink control channel during group call service in RRC idle state, then the service reliability is improved, but the effective service time reduces
Solution Approach 1:
By implementing discontinuous reception with configured DRX cycles, the terminal alternates between active sensing periods and dormant periods. During dormant phases, the transceiver is turned off to conserve energy, while periodic activation ensures timely detection of paging messages. This approach extends effective service time by reducing the proportion of time the terminal spends in high-power states while maintaining adequate service reliability through periodic monitoring.
3Use of energy by moving object
If discontinuous reception is implemented in RRC idle state, then power consumption is reduced and service time is extended, but the device complexity increases
Solution Approach 1:
The patent introduces dynamic DRX configuration where the network can adjust DRX parameters (on-duration timer, inactivity timer, long DRX cycle) based on terminal behavior and service requirements. The terminal dynamically transitions between different DRX states and adjusts its sensing behavior according to configured timers and conditions, optimizing the balance between power consumption and service reliability without requiring complex hardware modifications.
4Use of energy by moving object
If discontinuous reception is implemented in RRC idle state, then power consumption is reduced and service time is extended, but the difficulty of detecting and measuring increases
Solution Approach 1:
The network configures DRX parameters in advance before the terminal enters idle state, pre-defining the sensing schedule including on-duration timers, inactivity timers, and long DRX cycles. This preliminary configuration eliminates the need for complex real-time decision-making at the terminal, as the sensing behavior is predetermined based on network-assigned parameters, thereby reducing the difficulty of detecting and measuring while achieving power savings.
Data Source
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AI summary
Embodiments of the present invention relate to the technical field of communications. Disclosed are a method, terminal and system for reducing the power consumption of a cluster terminal in a broadband cluster system. The method in the embodiments of the present invention comprises: after receiving a group call configuration instruction sent by a base station, a cluster terminal configures, according to the group call configuration instruction, a group call context, a discontinuous reception instruction and group call resources, and executes the discontinuous reception instruction; when determining to enter an activation period of the discontinuous reception instruction, the cluster terminal listens to a physical channel; and when determining to enter a dormant period of the discontinuous reception instruction, the terminal stops listening to the physical channel. In this way, connected-mode single-call discontinuous reception in a public network standard can be applied to a terminal that is in an RRC idle state in a broadband cluster system, thereby reducing the power consumption of the terminal in a group call service process, and prolonging the service duration of a cluster terminal.