5G MDT Configuration via SIB Broadcast for Fast RRM Measurements
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Solution Overview
Problem
The existing MDT (minimization of drive tests) activation by OAM in 5G NR is inefficient, leading to long activation times and limitations in SON (self-organized network) functions, and lacks the ability to promptly acquire UE measurement and location information for RRM, mobility, and beam management.
Innovation Solution
The method involves the access network device sending MDT configuration information to terminals through system information, using newly added or modified SIBs, enabling terminals to perform MDT measurements based on this information for rapid RRM, mobility management, and beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional routing protocol is used in an IP network, then routing decisions can be made based on available information, but the routing loops cannot be effectively detected and prevented
Solution Approach 1:
The patent introduces a loop detection packet as an intermediary message that circulates through the network to detect routing loops. This packet carries unique identifiers and path information that allow routers to recognize when a loop exists, enabling loop detection without fundamentally changing the core routing protocol mechanics.
Solution Approach 2:
The routing information is segmented into separate components: the traditional routing table entries for normal packet forwarding, and the loop detection packets for loop prevention. This segmentation allows the routing protocol to maintain its simplicity while adding loop detection capability through a separate, dedicated mechanism.
2Measurement precision
If more routing information is collected to improve routing decisions, then routing accuracy improves, but the information overhead and processing complexity increase
Solution Approach 1:
The patent applies local quality by having routers maintain detailed path information only for packets that are candidates for loop detection, rather than all packets. The loop detection packets carry localized path information relevant only to their specific traversal route, reducing overall information overhead while maintaining detection accuracy for actual loops.
Solution Approach 2:
The system performs partial action by implementing loop detection only for specific routing scenarios where loops are most likely to occur, rather than applying comprehensive monitoring to all routing decisions. This selective approach reduces information overhead while maintaining sufficient detection capability for practical purposes.
Data Source
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AI summary
The present disclosure belongs to the field of communications and provided are a routing method and apparatus, a device and a storage medium, the method comprising: an access network device generating MDT configuration information; the access network device sending the MDT configuration information; a terminal receiving the MDT configuration information sent by the access network device; and the terminal performing MDT measurement according to the MDT configuration information. The present disclosure is capable of enabling a base station to promptly trigger MDT measurement according to requirements so as to perform fast RRM, mobility management and beam management.