TDD Time Slot Code Channel Division for MBMS
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Solution Overview
Problem
Current MBMS transmission methods in TDD networks are inefficient in utilizing time slot resources, leading to waste and suboptimal scheduling due to the requirement that each MBMS service occupies a minimum resource unit of one time slot, which is not adaptable for services with non-integral data rates.
Innovation Solution
The method involves dividing a time slot into code channels for MBMS services, allowing multiple low-data-rate services to share a single time slot and using repetitive scheduling intervals to optimize resource allocation, enabling efficient transmission and reception of multimedia broadcast multicast services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If one time slot is assigned to one MBMS service, then resource allocation is simple, but time slot resources are wasted when service data rate does not match integral time slots
Solution Approach 1:
The patent segments a time slot into multiple code channels, allowing one time slot to carry multiple MBMS services simultaneously. This segmentation enables fine-grained resource allocation where each service can be assigned to specific code channels within the time slot, matching the actual data rate requirements and eliminating resource waste.
2Productivity
If multiple MBMS services share one time slot, then resource utilization improves, but service multiplexing complexity increases
Solution Approach 1:
The patent applies local quality by assigning different code channels within a time slot to different MBMS services based on their specific requirements. Each code channel has specialized characteristics suited for particular service types, enabling efficient multiplexing while maintaining manageable complexity through structured resource allocation.
Data Source
AI summary
The present invention discloses a method for transmitting multimedia broadcast multicast services, comprising the following steps: a Time Division Duplex system divides a time slot for bearing multimedia broadcast multicast services into code channels; each multimedia broadcast multicast service to be transmitted is borne on a corresponding divided code channel, and is transmitted to a user equipment based on the single frequency network mode of the multimedia broadcast multicast service. The present invention also discloses a method for receiving multimedia broadcast multicast services, and apparatus for transmitting and receiving multimedia broadcast multicast services, such that time slot resources for bearing multimedia broadcast multicast services are utilized more sufficiently.