LTE User Equipment Fast EMBMS Channel Switching
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Solution Overview
Problem
Current LTE technology faces challenges in achieving fast channel switching and adding for multimedia broadcast multicast services, resulting in significant delays that degrade user experience due to the need to acquire and process repeated configuration messages for multicast traffic channels.
Innovation Solution
A method where user equipment (UE) stores multimedia broadcast multicast service control information for multiple channels and accesses this information upon determining to switch or add a new channel, thereby avoiding the need to acquire configuration messages repeatedly, reducing processing time and switching delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user equipment acquires configuration messages for multicast traffic channels on demand, then the channel switching and adding process is simplified, but significant delays occur due to repeated acquisition and processing of configuration messages
Solution Approach 1:
The user equipment stores previously acquired MBMS control information in a buffer before it is needed. When channel switching is required, the stored configuration messages are retrieved immediately without waiting for new acquisition, thereby eliminating the delay associated with repeated message acquisition and processing.
2Speed
If the user equipment stores MBMS control information for multiple channels, then channel switching speed is improved, but memory resources are consumed
Solution Approach 1:
The system performs preliminary acquisition and storage of MBMS control information for multiple channels during normal operation. This pre-stored information is then immediately available when channel switching is needed, significantly improving switching speed without requiring real-time acquisition delays.
Solution Approach 2:
Instead of acquiring fresh configuration messages for each channel switch, the user equipment uses copies of previously acquired MBMS control information that are stored in the buffer. These copies provide the necessary configuration data immediately, enabling fast channel switching while consuming memory resources for storing the copied information.
Data Source
AI summary
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a first MTCH. The apparatus stores MBMS control information for at least a second MTCH. The apparatus subsequently determines to receive the second MTCH. The apparatus then accesses the stored MBMS control information for the second MTCH upon determining to receive the second MTCH. The apparatus receives the second MTCH based on the accessed MBMS control information without acquiring the MBMS control information for the second MTCH after the determination to receive the second MTCH.