SC-MCCH Segmentation for SC-PTM Service Scheduling
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Solution Overview
Problem
Current technologies lack an effective solution for scheduling Single-Cell Point-to-Multipoint (SC-PTM) services, particularly in terms of configuring and transmitting the necessary control channel information for efficient service management.
Innovation Solution
A method and device for generating and sending Single Cell Multicast Control Channel (SC-MCCH) information, including mapping relationships, time domain location, modulation and coding schemes, and feedback requests, to configure and manage SC-PTM services, allowing for efficient scheduling and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If MBMS notification message mechanism is used to indicate MCCH information changes, then user equipment can selectively receive MCCH information to save resources and reduce power consumption, but there is no effective solution for scheduling SC-PTM services which requires new control channel configuration mechanisms
Solution Approach 1:
The patent segments the control channel information by creating separate SC-MCCH messages for different SC-PTM services, allowing user equipment to selectively receive and process only the configuration information relevant to specific services they are interested in, rather than receiving all MCCH information universally. This segmentation enables targeted information reception that reduces power consumption while providing dedicated scheduling capability for SC-PTM services.
Solution Approach 2:
The patent introduces SC-MCCH as an intermediary control channel between the network and user equipment for SC-PTM service scheduling. This intermediary carries dedicated configuration information including service identification, resource allocation, and scheduling parameters, enabling effective SC-PTM service management while allowing user equipment to selectively monitor only the SC-MCCH messages relevant to their subscribed services, thus reducing overall information processing load and power consumption.
2Productivity
If semi-static scheduling is applied to MBMS services with large data volume and long duration, then network resources can be efficiently utilized, but the control signaling remains unchanged for long term which reduces flexibility for dynamic service adjustments
Solution Approach 1:
The patent implements dynamic service configuration within the semi-static SC-MCCH framework by introducing modification periods and version indicators. The network can update SC-MCCH configuration information periodically or when service parameters change, allowing flexible adjustment of scheduling resources, service identification, and transmission parameters while maintaining the overall semi-static structure that ensures efficient network resource utilization for long-duration services.
Solution Approach 2:
The patent incorporates feedback mechanisms where user equipment monitors SC-MCCH modification indicators and selectively receives updated configuration information only when changes are detected. This feedback-driven approach allows the system to maintain semi-static scheduling for efficient resource utilization while enabling dynamic updates when service requirements change, as user equipment will actively check for and receive updated SC-MCCH messages when modification indicators signal changes.
Data Source
AI summary
The present disclosure provides an SC-MCCH sending method and device, and an SC-PTM receiving method and device. The SC-MCCH sending method includes: generating, by a base station, SC-MCCH information for indicating configuration information of a Single Cell Point-to-Multipoint (SC-PTM) service; and sending, by the base station, the SC-MCCH information; wherein the SC-MCCH information comprises: a mapping relationship between an identifier (TMGI) of the SC-PTM service and a Group Radio Network Temporary Identifier (G-RNTI), and information of a time domain location where the SC-PTM service is.