Multicast Session RRC State Control for UE Reception Flexibility
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Solution Overview
Problem
Current technologies lack flexible control methods for user equipment (UE) to receive multicast sessions in either an RRC connected or inactive state, failing to meet the varying quality and congestion control requirements of UEs in multicast broadcast services.
Innovation Solution
A multicast session transmission method and device that allows UEs to receive multicast sessions in a target RRC state based on indicated or agreed-upon reception modes, using RRC messages or MAC CEs to control the state of reception, enabling dynamic control or RRC connected state modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UEs receive multicast sessions in RRC inactive state to reduce network congestion, then network congestion is reduced, but transmission quality control becomes difficult
Solution Approach 1:
The patent implements dynamic control of UE reception states through network signaling. The network can dynamically indicate whether UEs should receive multicast sessions in RRC inactive or connected state based on current network conditions and UE requirements, allowing flexible adjustment between power efficiency and transmission quality guarantees
Solution Approach 2:
The patent changes the reception state parameter (RRC inactive vs. connected) based on different service requirements. By controlling the RRC state parameter through network indication, the system can optimize between congestion reduction and quality assurance for different multicast scenarios
2Reliability
If UEs receive multicast sessions in RRC connected state to ensure transmission quality, then transmission quality is improved, but network congestion increases
Solution Approach 1:
The system dynamically adjusts UE reception states based on service requirements and network conditions. For services requiring high quality, UEs are indicated to stay in connected state; for other services, UEs can transition to inactive state to reduce congestion
Solution Approach 2:
The network controls the RRC state parameter to switch between connected and inactive states based on quality requirements and congestion levels, optimizing the balance between transmission quality and network load
3Adaptability or versatility
If flexible control on UE reception states is implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The UE autonomously determines its reception state based on network indications and service requirements without requiring complex centralized control. The UE itself manages the state selection based on simple rules provided by the network, reducing overall system complexity
Data Source
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AI summary
The present disclosure provides a multicast session transmission method, device, equipment and medium, and relates to the technical field of communications, which solves the problem of lack of flexible control on a state in which UE receives a multicast session in the related art. The method of the present disclosure includes: receiving a multicast session activation notification message transmitted by a network device; receiving a multicast session in a target RRC state, according to a multicast session reception mode, or a multicast session reception mode and the multicast session activation notification message; wherein the multicast session reception mode is indicated by the network device or agreed upon by a protocol.