What Is a Multiband Vertical?

Multi-frequency network (MFN) is a network that uses multiple radio frequency channels to transmit media content.

Multi-frequency network (MFN) is a network that uses multiple radio frequency channels to transmit media content.

Chinese name

Multi-frequency network

English name

multiple frequency network; MFN

definition

There can be multiple transmitters inside, and each transmitter uses a network with a different transmission frequency.

Applied discipline

Communication technology (first-level discipline), mobile communication (second-level discipline)

The above content was published by the National Science and Technology Terminology Examination Committee.

Chinese name

Multi-frequency network

Foreign name

Multi-frequency network / MFN

Data networks, such as wireless communication networks, must make a trade-off between personalized services provided for a single terminal and many services provided for a large number of terminals. For example, distributing multimedia content to a large number of resource-constrained portable devices (users) is a complex issue. Therefore, it is very important for network operators, content retailers, and service providers to have a fast and efficient way to distribute content and / or other network services, and to improve bandwidth utilization and power efficiency in this way.

Multi-frequency network (MFN) is a network that uses multiple radio frequency channels to transmit media content. Horizontal Multi-Frequency Network (HMFN) is a multi-frequency network in which distributed waveforms are transmitted on different RF channels in different local areas. In such areas, the same or different content can be used as part of a distributed waveform transmitted on different radio frequency channels. Vertical Multi-Frequency Network (VMFN) is another type of multi-frequency network. In this type of network, the area is fixed. Multiple RF signals are used to transmit independent distributed waveforms to increase the capacity of the network. Independently distributed waveforms are transmitted. (From the perspective of providing more content to one device / user). Multi-frequency network deployment may include deployment of both horizontal multi-frequency networks and vertical multi-frequency networks.

In a typical multi-frequency network, the local service infrastructure includes a transmitting site (sending multiple distribution waveforms on multiple radio frequency channels in a selected geographic area. Each distribution waveform can include one or more Selected content streams. Adjacent facilities can utilize the same or different RF channels.

During operation, the receiving device can perform RF channel conversion after a user request or an application request to obtain content on another RF channel. If the content acquisition fails, for example due to the mobility of the device or the diversification of channel conditions, the device can also perform RF channel conversion. Normally, the device can switch to any RF channel with a content stream available. When content acquisition fails due to device mobility, the coverage areas of two or more facilities may overlap, so multiple RF channels carrying the required content may be available. These available radio frequency channels belong to different facilities, and each facility can include a lot of additional content transmitted on other radio frequency channels. If a device randomly selects one of the available channels, the selected facility may not carry the most extra content.

Therefore, there is a need for a system that allows the device to select the ideal RF channel, so that the device can quickly and effectively switch to additional content and enhance the user experience.