Group-Based Downlink Data Transmission for M2M Resource Optimization
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Solution Overview
Problem
Current downlink data transmission methods in M2M communication are inefficient, leading to a low utilization rate of network resources, as they lack a suitable group-based transmission mode for transmitting data to a specific group of user equipment, resulting in resource wastage and interference with normal user equipment.
Innovation Solution
A method and device for downlink data transmission that groups user equipment with the same user or in a regional range, using a Group ID to optimize signaling transmission, allowing user equipment to receive data without entering the RRC connection state by monitoring a first message carrying the Group ID, thereby reducing resource wastage and improving network utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each user equipment is paged individually or information is sent to each user equipment separately, then the information can be delivered to all target user equipments, but network resources are wasted
Solution Approach 1:
The patent combines multiple individual paging operations into a single group-based paging operation. By creating a group containing multiple user equipments and sending one group paging message instead of multiple individual paging messages, the solution reduces network resource consumption while ensuring all target user equipments receive the information.
2Loss of energy
If group-based transmission is implemented, then network resource utilization improves, but device complexity increases due to group management
Solution Approach 1:
The patent creates a universal group structure that can accommodate multiple user equipments with different characteristics (same user or regional distribution). The group mechanism serves multiple functions: resource optimization, simplified paging, and flexible scalability. This universal approach reduces overall system complexity despite adding group management capabilities.
3Reliability
If user equipment enters RRC connection state to receive data, then data transmission reliability improves, but resource allocation conflicts increase
Solution Approach 1:
The patent applies partial action by allowing user equipments to remain in idle state for group-based data reception instead of requiring full RRC connection establishment. This partial approach (receiving data without full connection) reduces resource allocation conflicts while maintaining sufficient transmission reliability for group-based communications.
Data Source
AI summary
The present invention relates to the technical field of communications. Disclosed are a method and device for downlink data transmission for use in reducing network resource wastage when a network side is transmitting data to a certain group of user terminals, thus increasing network resource utilization rate. The method comprises: grouping specific user terminals into a group, and identifying each group with a unique Group ID; a user terminal, when idle, monitors paging messages intended for it, and a first message; when a network side is transmitting downlink data, the network side transmits downlink data transmission scheduling information, and pages the group of user terminals at a timing of the group by means of the first message carrying the Group ID of the group; the user terminals that have received the first message receive the downlink data at a time window and a fixed physical resource position on the basis of the group-based downlink data transmission scheduling information received. This reduces waste of network resources in M2M communications when the network side is transmitting data to a certain group of user terminals, thus increasing the effect of network resource utilization rates.