Terminal Power Consumption Reduction via Dynamic Energy Saving Mode

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Solution Overview

Problem

In wireless communication systems, terminals experience high power consumption due to the need to buffer the Physical Downlink Shared Channel (PDSCH) even when there is no transmission, leading to increased energy usage.

Innovation Solution

A method where a terminal receives indication information and data scheduling information from a network side device, allowing it to enter an energy saving mode or an abnormal power consumption mode, reducing power consumption when data transmission is not imminent.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal buffers the PDSCH continuously even when there is no transmission, then the terminal can maintain readiness for data reception, but the power consumption of the terminal increases

Engineering Contradiction:

Improvereadiness for data receptionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The terminal dynamically adjusts its operating state between active buffering mode and energy-saving mode based on the presence of data transmission. When PDSCH transmission is detected, the terminal activates buffering; when no transmission is present, the terminal transitions to energy-saving mode, making the system adaptable to varying operational conditions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The terminal changes its operational parameters by switching between different power consumption modes. The system modifies its buffering behavior and power state based on transmission conditions, effectively using parameter changes to resolve the contradiction between maintaining reception readiness and reducing power consumption

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If the terminal enters energy saving mode to reduce power consumption, then the power consumption decreases, but the terminal may miss data transmission opportunities

Engineering Contradiction:

Improvepower consumptionVSAvoiddata reception capability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The system uses feedback mechanisms where the terminal monitors for PDSCH transmission signals and adjusts its mode accordingly. When transmission is detected, the terminal switches from energy-saving mode to active mode, ensuring data is not missed. This feedback loop maintains reliability while enabling energy savings during idle periods

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The terminal performs preliminary monitoring to detect the presence of PDSCH transmission before fully activating its buffering and reception systems. This preliminary action allows the terminal to stay in energy-saving mode during idle periods while quickly transitioning to active mode when transmission is imminent, preventing data loss

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12284609B2Signal receiving method, signal sending method, terminal and network side device

Publication Date: 2025.04.22 DATANG MOBILE COMM EQUIP CO LTD

AI summary

The embodiments of the present disclosure provide a signal receiving method, a signal sending method, a terminal, and a network side device. The receiving method includes: receiving, by a terminal, indication information and data scheduling information sent by a network side device; entering, by the terminal, an energy saving mode or an abnormal power consumption mode according to the indication information, wherein power consumption in the abnormal power consumption mode is lower than power consumption in the normal power consumption mode; performing, by the terminal, data transmission according to the data scheduling information when a data transmission time corresponding to the data scheduling information arrives.