Dynamic MBMS Broadcast Connection for Cell-Based Resource Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing Multimedia Broadcast Multicast Service (MBMS) technology limits network resource utilization efficiency due to static planning of multicast broadcast sessions, failing to adapt to terminal device location changes.
Innovation Solution
A method where the core network device determines interested terminals and associated cells, sending information to access network devices to confirm MBMS reception needs, establishing a broadcast connection only if necessary, thereby improving transmission flexibility and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the core network device only allows statically planned access network devices to initiate MBMS session start process, then the system structure is simple and easy to manage, but the MBMS transmission is limited and network resource utilization efficiency is low
Solution Approach 1:
The patent transforms the static MBMS session management into a dynamic process. The core network device determines target terminals interested in MBMS services in real-time, dynamically selects appropriate access network devices based on terminal locations, and establishes broadcast connections only when needed. This dynamic approach allows the system to adapt to changing terminal distributions and service demands, resolving the contradiction between transmission flexibility and management complexity.
Solution Approach 2:
The patent implements preliminary action by having the core network device proactively determine which access network devices should receive MBMS services before actual transmission begins. The core network device sends first information to access network devices in advance to confirm whether they need to receive the target MBMS, allowing the system to prepare transmission resources efficiently based on predicted terminal locations and service requirements, rather than relying on static pre-planning.
2Reliability
If the core network device establishes broadcast connection with all access network devices, then MBMS transmission coverage is ensured, but network resource utilization efficiency decreases
Solution Approach 1:
The patent applies local quality by making the broadcast connection establishment selective rather than universal. The core network device determines specific target terminals interested in MBMS services and identifies the particular access network devices serving those terminals. Broadcast connections are established only with the specific access network devices that have actual MBMS reception needs, rather than establishing connections with all access network devices. This localized approach ensures reliable transmission to interested terminals while avoiding resource waste in areas without MBMS demand.
Solution Approach 2:
The patent implements self-service by enabling access network devices to autonomously determine their own MBMS reception needs. When the core network device sends first information to an access network device, the access network device independently confirms whether it needs to receive the target MBMS by checking if there are target terminals in its coverage area. This self-determination mechanism allows each access network device to make local decisions about resource allocation, ensuring transmission reliability where needed while conserving resources where not needed, without requiring centralized control over all devices.
3Productivity
If the access network device pages all terminals in idle and in-active states, then no terminal is missed for MBMS service, but signaling overhead and system complexity increase
Solution Approach 1:
The patent applies partial action by having the access network device page only the specific target terminals that are determined to be interested in the MBMS service, rather than paging all terminals in idle and in-active states. The core network device provides information about which terminals are the target terminals, allowing the access network device to selectively page only those terminals. This selective paging approach ensures that all interested terminals are reached while avoiding unnecessary signaling overhead and system complexity that would result from paging all terminals.
Data Source
AI summary
The present application provides a multimedia broadcast multicast service transmission method, including: a core network device determines a target terminal which is interested in a target MBMS; the core network device determines a cell associated with the target terminal; the core network device sends first information to an access network device to which the cell associated with the target terminal belongs, the first information is used to trigger the access network device to confirm whether the target MBMS needs to be received; establishes a broadcast connection with the access network device for the target MBMS, if second information from the access network device or the target terminal is received by the core network device, the second information is used to indicate the access network device needs to receive the target MBMS.