Terminal Device Low-Power Receiver State Entry via Target Timer
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Solution Overview
Problem
In 5G NR communication systems, terminal devices cannot determine when to enter a low-power receiver state, leading to inefficiencies in power consumption due to the lack of clear criteria for transitioning between receiver states.
Innovation Solution
A communication method and apparatus that allow terminal devices to enter a low-power receiver state based on information from a target timer or indication information sent by a network device, with primary receivers being configured to turn off and process baseband and radio frequency signals, enabling efficient power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the terminal device uses LP-WUS mechanism to reduce power consumption, then power saving capability is improved, but the terminal cannot determine when to enter the low-power receiver state
Solution Approach 1:
The patent introduces a target timer as an intermediary mechanism between the network device and the terminal device. The network device configures the target timer, and the terminal device uses the timer's expiration information to determine when to enter the low-power receiver state. This intermediary timer resolves the uncertainty about entry timing while enabling power saving operations.
Solution Approach 2:
The patent implements a feedback mechanism where the network device sends indication information to the terminal device about the target timer's expiration. This feedback allows the terminal device to accurately determine when to transition to the low-power receiver state, solving the timing determination problem while maintaining power consumption reduction benefits.
2Use of energy by moving object
If the primary receiver is turned off to reduce power consumption, then energy efficiency is improved, but the terminal device lacks clear criteria for state transition
Solution Approach 1:
The patent applies preliminary action by having the network device configure the target timer in advance. The terminal device uses this pre-configured timer information to determine future state transitions. This preliminary configuration provides clear criteria for when to turn off the primary receiver, simplifying the state transition control while enabling significant power savings.
3Loss of energy
If the terminal device enters low-power receiver state based on target timer information, then power saving capability is improved, but additional control mechanisms are required
Solution Approach 1:
The patent makes the target timer a multi-functional mechanism that serves multiple purposes: it controls the entry timing of the low-power receiver state, provides the basis for power saving operations, and enables the terminal device to determine optimal transition moments. This universal timer mechanism improves power saving capability without requiring multiple separate control systems.
Data Source
AI summary
This application provides a communication method and apparatus. The method includes: A terminal device enters a low-power receiver state based on information of a target timer or indication information sent by a network device. At least one primary receiver of the terminal device in the low-power receiver state is in an off state. In this manner, the terminal device determines, based on the information of the target timer or the indication information sent by the network device, when to enter the low-power receiver state.