MBS Frequency Segmentation for Lower Terminal Power Use
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Solution Overview
Problem
In LTE technology, allocating frequency domain resources for Multicast Broadcast Services (MBS) leads to issues of resource occupation by large data volumes affecting common services and increased power consumption due to wide bandwidth usage when no MBS is received.
Innovation Solution
A method and device for MBS transmission that dynamically allocate frequency ranges for MBS and its control information, allowing terminals to receive interested MBS and control information within specific frequency bands, separate from common service frequencies, thereby optimizing resource use and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal receives MBS within a broad frequency range (same as common services), then the terminal can receive MBS, but power consumption increases due to wide bandwidth usage
Solution Approach 1:
The frequency domain is segmented into separate ranges: a first frequency range for common services and a second frequency range for MBS. The terminal is configured to receive MBS control information in the first frequency range and MBS data in the second frequency range, allowing the terminal to narrow its receiving bandwidth to only the necessary MBS frequency range, thereby reducing power consumption while maintaining MBS reception capability.
2Use of energy by moving object
If the terminal receives MBS within a narrow frequency range (same as common services), then power consumption is reduced, but common service transmission is blocked due to large MBS data volume occupying frequency resources
Solution Approach 1:
The frequency domain is divided into distinct first and second frequency ranges. The first frequency range is dedicated to common services, while the second frequency range is dedicated to MBS. This segmentation allows common services to be transmitted without being blocked by MBS data, as each service type occupies its own frequency resources. The terminal receives MBS control information in the first frequency range and MBS data in the second frequency range, enabling efficient common service transmission while maintaining MBS reception.
Solution Approach 2:
The patent introduces a frequency range as an intermediary resource that mediates between common services and MBS. By allocating a separate second frequency range for MBS, the system prevents MBS from interfering with common service transmission. The terminal uses this intermediary frequency allocation to receive MBS without blocking common services, resolving the conflict between the two service types.
3Productivity
If a separate frequency range is allocated for MBS, then common service transmission is ensured, but frequency resource allocation complexity increases
Solution Approach 1:
The frequency domain is segmented into a first frequency range for common services and a second frequency range for MBS. This segmentation is implemented through configuration information that indicates the frequency ranges to the terminal. The network device configures the terminal with the first frequency range for receiving MBS control information and the second frequency range for receiving MBS data, simplifying the allocation management while ensuring common service transmission efficiency.
Data Source
AI summary
A Multicast Broadcast Service (MBS) transmission method, an MBS transmission indication method, and a device are provided. The MBS transmission method includes: receiving first information from a network side; receiving an MBS or second information based on the first information, where the second information includes information about sending control of the MBS; and the first information is used to indicate one or more of the following: information about a sending frequency of the MBS; and information about a sending frequency of the second information.