RU2422997C2 - Method to create ultra-high-speed wireless wideband mesh networks - Google Patents

Abstract

FIELD: information technologies.

SUBSTANCE: method includes transformation of digital information into data packets with transfer of specified packets along communications networks, where in a mesh network antenna feeder units are installed at a distance of 500 m in a staggered order. The carrier frequency is tuned for 80 GHz, data transfer speed of 2 GB/s is maintained, modulated radio signals are received.

EFFECT: increased speed of data transfer by increase of data passband, achievement of a more even transfer of data flows and in frequency planning in mesh networks.

Description

The proposed invention relates to information technology, namely to networks for the transmission of data packets, and can be used in the construction of ultra-high-speed MESH networks.

The essence of the invention lies in the fact that the transmit-receive relay antennas and nodes of the communication network are located at a distance of up to 500 m, the carrier frequency is increased to 80 GHz, the data transfer rate is up to 5 Gb / s and higher, and in the transmit-receive channel of the MESH node -networks perform modulation, demodulation and routing of electrical signals by means of, including: a software-controlled transceiver, router, microwave filters, a hub and a gateway with a low-speed network adapter, and the indicated carrier frequency is converted to the standard frequency of 6.4 GHz; 2.4 GHz or another, followed by transmission to the user’s server using standard protocols.

As a prototype [1], a data transmission network created according to the IEEE 802.11 standard, in which the data transfer rate is 1 Gb / s, which does not meet modern performance requirements for communication channels, was selected. An attempt to solve this problem by increasing the power of the transmitter is limited by the manifestation of crosstalk, and the increase in the carrier frequency of the transmitter is limited by the atmospheric attenuation factor of the radio emission.

The proposed invention solves the problem of increasing the data transfer rate in wireless broadband mesh networks up to 5 Gb / s and higher.

This problem is solved by the fact that retransmission antenna-feeder paths are installed in a mesh network (MESH network) at a distance of 500 m in a checkerboard pattern, the transmitter carrier frequency is set to 80 GHz, they can withstand data transfer rates of up to 5 Gb / s and higher, for example 6 , 1 ... 6.4 GHz; 5.3 ... 5.9 GHz, 2.41 ... 2.48 GHz and receive data packets in user devices.

According to the method, the above sequence of actions is performed in accordance with the following description. Transceiver devices with a carrier frequency of at least 80 GHz, including code parcel modulators, routers and antenna-feeder units, providing the transmission and reception of ultra-fast broadband signals, for example, at a speed of 2 Gb / s, are built into mesh networks (MESH networks) .

Antenna-feeder blocks are staggered and at a distance of 500 m from one another. The staggered arrangement of antennas improves the quality of the selection of the neighboring mesh station and reduces the influence of the terrain, as well as the obstacles located on it. A distance of 500 m was found experimentally. At shorter distances and when working with standard power transmitters, crosstalk can occur, which will increase dramatically when higher power transmitters are installed. At greater distances, a decrease in signal reception quality is observed, for example, due to large attenuation due to precipitation.

Carrier spacing is wider compared to the prototype and data is received and transmitted at a carrier frequency of about 80 GHz with a speed of 2 Gb / s. Additionally, for transmission to the subscriber in lower-level networks, the choice of a less loaded band is used. For example, the carrier frequency is converted to one of the standard ranges of 6.1 ... 6.4 GHz; 5.3 ... 5.9 GHz; 2.41 ... 2.48 GHz.

The converted information stream is sent to the user.

Example 1. Create a MESH network, including 70 antenna-feeder units with transmitters, receivers and routers, located on the ground in a checkerboard pattern and at a distance of 500 m from each other. These transmitters with modulators, routers and receivers are technologically tuned to the carrier (working) frequency of 80 GHz. The transmission speed is set to 2 GHz / s. Through the operation of the routers establish a virtual communication channel. Within 10 min, data packets arriving at the transmitter modulator from the support network of the server of the transmitting subscriber and to the transmitting and transmitting unit are transmitted. The modulated radio signals coming to the receiving side at a frequency of 80 GHz are converted so that their further transmission is carried out on a free standard frequency channel of 6.4 GHz. They perform demodulation and, in a mode close to synchronous, receive data with a short delay time by the subscriber receiving the information. No interference from other stations is observed.

Example 2. Create a MESH network of 100 staggered antenna-feeder units with repeaters, including a receiver, router, transmitter and other electronic devices. Antenna-feeder blocks are staggered and at a distance of 500 m from each other. Set up the MESH network on the carrier frequency of 80 GHz transmitters, set up a virtual channel and transmit it over a broadband wireless channel from the subscriber transmitter on the transmitting side to the subscriber transmitter on the receiving side. Weather conditions do not favor transmission. It is snowing with rain. Under these conditions, a signal at a carrier frequency of 80 GHz is received without loss of information. To reduce the waiting time and increase the reliability of information delivery to the subscriber’s server, one of the less loaded standard ranges is found on the receiving side. This range is in the frequency range 5.3 ... 5.9 GHz. The carrier frequency in this range of 5.7 GHz is selected. The signal is delivered to the correspondent on the receiving side in full, with high speed and without loss of information.

The effectiveness of the invention

The proposed invention allows:

1. Increase the data transfer rate in MESH networks to 2 Gb / s and higher.

2. To maintain the operability of existing means of user access to communication networks and achieve a more uniform transmission of data streams.

3. To expand the task of frequency planning in MESH networks.

Literature

1. Guidance on technology for integrated networks. 4th edition. M. 2005.

Claims (1)

The method of creating ultra-fast wireless broadband mesh MESH networks by sequentially converting discrete information into data packets with the transmission of these packets over communication networks, characterized in that in a mesh MESH network, in relays with antenna-feeder units and routers located at a distance of 500 m one from another in a staggered manner, the carrier frequency of the broadband transmitter is tuned to an upper limit of 80 GHz, can withstand a data transfer rate of 2 Gb / s, take the mode at this frequency radio signals, convert the indicated carrier frequency of the data of the radio signals into one of the standard 2.4-6.4 GHz bands and receive data packets in user devices.