UE MBMS Interest Indication Timer Mechanism

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The existing wireless communication systems face network overload due to excessive transmissions of Multimedia Broadcast/Multicast Service (MBMS) interest indications from user equipment (UE), which are sent frequently to indicate interest in receiving MBMS on specific frequencies, leading to inefficient resource management.

Innovation Solution

A method where user equipment (UE) transmits a first indication including information about MBMS frequencies of interest and priority, and starts a timer; subsequent transmissions of MBMS interest indications are prohibited while the timer is running, unless the included information changes, thereby reducing unnecessary network load.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the UE transmits MBMS interest indications frequently to indicate interest in receiving MBMS on specific frequencies, then the network can respond to UE's MBMS reception needs, but the network becomes overloaded due to excessive transmissions

Engineering Contradiction:
ImproveMBMS reception capabilityVSAvoidnetwork efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent implements periodic action by introducing a timer mechanism that restricts MBMS interest indication transmissions to occur only at specific intervals. When the UE's interest in MBMS changes, the indication is transmitted, but a timer is started that prevents further transmissions until the timer expires. This periodic restriction reduces excessive signaling while still allowing the network to respond to genuine changes in UE MBMS reception needs, thereby resolving the contradiction between adaptability and network efficiency.

Inventive Principle:
Principle #19Periodic action

2Loss of information

If the UE transmits MBMS interest indications whenever interest changes, then the network is kept updated about UE's MBMS interest, but resource efficiency decreases due to excessive signaling

Engineering Contradiction:
ImproveMBMS interest informationVSAvoidsignaling resources
Core Design Contradiction:
Loss of informationVSLoss of energy

Solution Approach 1:

The patent applies partial action by selectively transmitting MBMS interest indications only when necessary - specifically when the UE's MBMS interest actually changes. The timer mechanism ensures that not every interest change triggers a transmission, but only significant changes that occur after the timer expires. This partial transmission approach maintains essential MBMS interest information updates while reducing unnecessary signaling resource consumption, thereby resolving the contradiction between information completeness and energy efficiency.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS9491592B2Method and apparatus for transmitting indication in wireless communication system
Publication Date: 2016.11.08 LG ELECTRONICS INC
  • US9491592B2 patent drawing
  • US9491592B2 patent drawing
  • US9491592B2 patent drawing

AI summary

A method and apparatus for transmitting an indication in a wireless communication is provided. A user equipment (UE) transmits a first indication indicating at least one of first information and second information, starts a timer, and transmits a second indication if the first information included in the first indication is changed while the timer is running.