Sidelink Power-Saving Configuration for Conflict-Free UE Data Transfer
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Solution Overview
Problem
In Side Link (SL) communication scenarios, conflicts between data reception and transmission, or between active and sleep states of terminals, lead to low data transmission efficiency or failure, particularly in modes A and B of LTE D2D and NR V2X, where resource scheduling by the base station or UE can cause inefficiencies and failures.
Innovation Solution
An information configuration method and apparatus that involves UEs exchanging configuration information for data transmission and reception parameters under a power saving mechanism, allowing UEs to coordinate their operations to avoid conflicts and ensure efficient data transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If power saving mechanism is implemented in SL communication by controlling terminal to enter sleep state or use discontinuous reception/transmission, then power consumption is reduced, but data transmission efficiency deteriorates due to conflicts between data reception and transmission or between active and sleep states
Solution Approach 1:
The patent applies preliminary action by pre-configuring power saving parameters and transmission parameters before actual data transmission occurs. The network device or terminal determines power saving parameters in advance, and transmission parameters are configured based on these pre-determined power saving settings, ensuring that conflicts between transmission and sleep states are avoided before they occur.
Solution Approach 2:
The patent implements dynamics by making the power saving parameters and transmission parameters adjustable and adaptable. The system can dynamically determine power saving parameters based on traffic conditions, and transmission parameters are accordingly adjusted to match the power saving state, allowing the system to flexibly respond to changing conditions while maintaining coordination between transmission and power saving modes.
2Use of energy by moving object
If configuration information for power saving parameters is exchanged between UEs or configured by network device, then power saving mechanism can be implemented, but system complexity increases due to additional configuration and coordination requirements
Solution Approach 1:
The patent uses the network device as an intermediary to simplify the configuration process. The network device can determine power saving parameters and configure transmission parameters centrally, reducing the complexity of direct UE-UE coordination. Alternatively, when UEs autonomously determine parameters, standardized configuration messages are used to simplify the interaction protocol.
Solution Approach 2:
The patent applies universality by designing configuration information that serves multiple purposes. The same configuration messages and parameters are used for both power saving control and transmission coordination, eliminating the need for separate specialized protocols and reducing overall system complexity despite the added functionality.
Data Source
AI summary
The present application relates to an information configuration method, apparatus and device, and a storage medium. A first UE receives configuration information sent by a second UE, and because the configuration information is used for indicating data transceiving-related parameters under a power saving mechanism of a side link between the first UE and the second UE, the purpose of power saving can be achieved when the first UE and the second UE communicate with each other by using the data transceiving-related parameters indicated by the configuration information; moreover, the purpose of the configuration information is to perform data transceiving under the power saving mechanism of the side link between the first UE and the second UE.