KR101072242B1 - Mobile communicating repeater - Google Patents

Abstract

The present invention relates to a mobile communication repeater, the mobile communication repeater of the present invention from a donor unit and a donor unit for transmitting a signal input from the base station side to one or more node side, and a signal input from one or more node side to the base station side It includes at least one node for transmitting the input signal to the terminal side, and transmits the signal input from the terminal side to the donor unit side, the communication between the donor unit and one or more nodes is advantageous for one-to-many communication by the Ethernet communication, There is an effect that the speed for the management of the mobile communication repeater is improved.

Telecom Repeater, Ethernet, Broadcast, Digital Optical

Description

Mobile repeater {MOBILE COMMUNICATING REPEATER}

The present invention relates to a mobile communication repeater.

In the mobile communication network, repeaters are installed and used to improve the quality of service in areas with high traffic volume and in shaded areas.

1 is a block diagram illustrating a communication structure between a conventional unit, and illustrates a structure of a method of communicating between a donor unit 10 and a plurality of nodes 20. The node 20 may be remote (Remote, 21, 22, 23, 21a, 21b, 22a, 22b, 23a, 23b).

In general, one donor unit 10 includes one or more OTRUs 12a, 12b, and 12c, and one or more RHUs (Remote Hub Units, 21, 22, and 23) are connected to the OTRU 12a. In addition, one or more RAUs (Remote Antenna Units 21a, 21b, 22a, 22b, 23a, and 23b) may be connected to the RHUs 21, 22, and 23. And one or more other RHU may be connected to the RHU (21, 22, 23), RAU may not be connected.

As described above, conventionally, a one-to-many communication scheme in which one donor unit 10 and a plurality of RHUs 21, 22, 23 and RAUs 21a, 21b, 22a, 22b, 23a, and 23b communicate with each other is applied. Serial communication method is applied as a communication standard. In the one-to-many communication method, communication is performed between each node 20 and the donor unit 10 in a sequential polling manner. As described above, the reason why the communication between each node 20 and the donor unit 10 is sequentially performed is to communicate in a sequential polling manner because a collision may occur between data while simultaneously transmitting data with the lower equipment. The lower nodes 20 were managed.

That is, communication with the donor unit 10 and the first RHU 21 is made, and then communication with each RAU 21a and 21b and the donor unit 10 connected to the first RHU 21 is performed, respectively. The second RHU 22 and the donor unit 10 communicate with each other. As such, since communication is sequentially performed, communication between one remote and the donor unit 10 is not performed with other remotes.

However, as in the prior art, as the communication is performed in the serial communication method, the number of nodes 20 increases, and the entire system of the system is updated with respect to the update of the relay state due to the use of the sequential polling method for one-to-many communication. The response speed is slow and the communication is performed by polling method, so there are limitations such as the time required when there is control in the reverse direction from the lower stage, and the speed limit even in the implementation of the reverse control according to the protocol change. There is a problem that occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a mobile communication repeater in which a communication method in which an update of a repeater state is quick and a control method for a reverse direction does not occur is applied.

In order to achieve this object, in one aspect of the present invention, a mobile communication repeater processes a forward signal input from a base station side and transmits it to a remote site, and at least one donor unit processes a reverse signal input from the remote site and transmits it to a base station side. (Donor Unit); And a plurality of nodes located at the remote location and processing forward signals input from the donor unit to the terminal, and processing reverse signals input from the terminal to the donor unit. Includes, the at least one donor unit and the plurality of nodes is characterized in that the Ethernet (Ethernet) communication is made.

At this time, the donor unit includes a DHCP (Dynamic Host Configuration Protocol) server, characterized in that to assign the IP (Internet Protocol) to the plurality of nodes.

The donor unit includes one or more Optical Transmit Receive Units (OTRUs) for converting a forward signal into an optical signal and transmitting the optical signal to the plurality of nodes, and converting and outputting an optical signal input from the plurality of nodes into an electrical signal. It is characterized by.

In this case, the OTRU may include an ODU (Optic Digital Unit) for transmitting and receiving Ethernet packets for Ethernet communication.

And at least one of the plurality of nodes is characterized in that the RHU (Remote Hub Unit) for transmitting and receiving signals with the terminal side.

At this time, the RHU is characterized in that it comprises an ODU for transmitting and receiving Ethernet packets for Ethernet communication.

As described above, according to the present invention, by changing the communication method from the serial communication method to the Ethernet communication method in the mobile communication repeater, it is advantageous for one-to-many communication and has an effect of improving the speed for managing the mobile communication repeater.

In addition, even though data is transmitted through the Ethernet communication method, it is possible to use the optical path of an existing optical repeater as it is transmitted by optical communication. In addition, the speed is not only improved in the reverse control, but also the DHCP is included in the donor unit, so that the ID of the repeater located in the lower stage can be automatically set.

The preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which the technical parts already known will be omitted or compressed for simplicity of explanation.

2 is a block diagram showing a communication structure between units constituting a mobile communication repeater of the present invention.

The mobile communication repeater of the present invention includes a donor unit 110 and a node 120.

The donor unit 110 processes the forward signal input from the base station side and transmits the forward signal to the node 120 at the remote side, and stores the reverse signal input from the node 120 to the base station side.

The node 120 processes the forward signal input from the donor unit 110 and transmits it to the terminal side, and processes the reverse signal input from the terminal side and transmits the reverse signal to the donor unit 110 side.

In addition, a unit that may be included in the node 120 is a remote, which transmits a signal of a base station to a terminal or receives a signal from a terminal. Or RAU (Remote Antena Unit, 121a, 121b, 122a, 122b, 123a, 123b) connected to the RHU (121, 122, 123).

Optical Transmit Receive Units (OTRUs) 112a, 112b, and 112c are included in the donor unit 110 to transmit and receive signals to and from a remote remote. In this case, a plurality of remotes may be connected to each of the OTRUs 112a, 112b, and 112c. The OTRUs 112a, 112b, and 112c convert the forward signal output from the donor unit 110 into an optical signal and transmit the optical signal to the remote side. The reverse signal, which is an optical signal input from the remote side, is converted into an electrical signal and output. do.

In addition, a donor unit 110 includes a repeater control unit (RCU) for controlling equipment included in the OTRUs 12a, 112b, 112c and other donor units 110.

RHU (121, 122, 123) or RAU (121a, 121b, 122a, 122b, 123a, 123b) corresponding to the remote process the signal input from the donor unit 110 side, and transmits it to the terminal side, The signal input from the terminal side is amplified and transmitted to the donor unit 110 side.

In this case, the mobile communication repeater includes at least one donor unit 110, and a plurality of nodes 120 are connected to the at least one donor unit 110. In the mobile communication repeater of the present invention, the donor unit 110 is connected to the donor unit 110. The plurality of nodes 120 are connected by an Ethernet communication method. In addition, since at least one donor unit 110 and the plurality of nodes 120 are connected by an Ethernet communication method, each of the plurality of nodes 120 requires an Internet Protocol (IP). Therefore, the donor unit 110 includes a DHCP (Dynamic Host Configuration Protocol) server.

That is, each node 120 is automatically assigned an IP by a DHCP server included in the donor unit 110, so that communication between each node 120 and the donor unit 110 may be performed in an Ethernet manner. .

In this case, the OTRUs 112a, 112b, 112c and the RHUs 121, 122, and 123 may include an optical digital unit (ODU), respectively. The ODUs are the OTRUs 112a, 112b, 112c and the RHUs 121, 122, and 123, respectively. Using MAC address of OTRUs 112a, 112b, 112c or RHU 121, 122, 123 to process Ethernet packets for Ethernet communication, respectively, and transmitting and receiving Ethernet packets In addition to implementing logic for the data, even though a plurality of nodes 120 are connected to the OTRU through an ODU, the respective breweries are used to transfer data through a single optical path using the function of a hub. Can be enabled.

Therefore, as in the conventional optical repeater to transmit the optical signal, the data is transmitted by the optical signal, by changing the method from the serial communication method to the Ethernet communication method, it is possible to use the existing optical path as it is.

Of course, the RAUs 121a, 121b, 122a, 122b, 123a, and 123b may also include ODUs, respectively, so that communication between the RHU and the RAU may be performed through Ethernet communication.

Since the donor unit 110 and the plurality of nodes 120 communicate by the Ethernet communication method, communication between each node 120 and the donor unit 110 needs to be performed in a sequential polling method as in the prior art. Broadcasting scheme can be performed simultaneously without. Therefore, even when controlling at the lower stage, there is no need to wait for the order of the corresponding node 120 in sequence, which has the advantage of reducing the control time.

Of course, the communication between the donor unit and the plurality of nodes may be used in a polling manner as in the related art, without communicating through a broadcasting method.

That is, while communication is performed between the first RHU 121 and the donor unit 110, communication between the second RHU 122 and the donor unit 110 is possible at the same time. In addition, communication between all the lower RAUs 121a, 121b, 122a, 122b, 123a, and 123b connected to the RHUs 121, 122, and 123 including the first RAU 121a and the donor unit 110 may be simultaneously performed. Therefore, there is an advantage that it is easy to implement the reverse function to control at the lower stage.

That is, as in the conventional case, when the communication is performed in the polling method, in order to perform reverse control, if the upper device occupies the channel, the communication device is not occupied because the lower device does not communicate. Although only communication has been performed, the present invention has an advantage in that communication is performed in a broadcasting manner so that a problem of channel occupancy does not occur.

Here, the communication between the RHU (121, 122, 123) and the RAU (121a, 121b, 122a, 122b, 123a, 123b) may be implemented by a conventional sequential polling method, it may be implemented by the Ethernet communication method.

In addition, in order to communicate by assigning IP to each node 120 using the Ethernet communication method as described above, the IP of each node 120 and the ID of the node 120 can be distinguished from an upper server in the uppermost unit. The design is designed to have an algorithm that automatically translates identification.

On the other hand, since the data transmission speed can be designed to be 10 Mbps or 100 Mbps, communication can be performed at a higher speed than the conventional serial communication method, and information sharing can also be performed between the units of the node 120. This makes it easy to implement additional add-ons.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And the scope of the present invention should be understood as the following claims and their equivalents.

1 is a block diagram showing a communication structure between conventional units.

2 is a block diagram illustrating a communication structure between units of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: donor unit

112a: first OTRU 112b: second OTRU

112c: third OTRU

120: node

121: first RHU 122: second RHU

123: 3rd RHU

121a, 121b, 122a, 122b, 123a, 123b: RAU

Claims (6)

A donor unit which processes a forward signal input from the base station side and transmits the signal to a remote site, and processes a forward signal input from the remote site and transmits the reverse signal to the base station side; And A plurality of nodes, which are located at the remote location, process forward signals input from the donor unit to the terminal side, and process reverse signals input from the terminal side to the donor unit side; Including, The donor unit includes a Dynamic Host Configuration Protocol (DHCP) server, and assigns an IP (Internet Protocol) to each of the plurality of nodes, The donor unit and the communication of each of the plurality of nodes is a mobile communication repeater, characterized in that the Ethernet (Ethernet) communication. delete The method of claim 1, The donor unit includes one or more Optical Transmit Receive Units (OTRUs) converting a forward signal into an optical signal and transmitting the optical signal to the plurality of nodes, and converting and outputting an optical signal input from the one or more nodes into an electrical signal. Mobile communication repeater characterized by. The method of claim 3, The OTRU includes an ODU (Optic Digital Unit) for transmitting and receiving Ethernet packets for Ethernet communication. The method of claim 1, At least one of the plurality of nodes is a mobile communication repeater, characterized in that the RHU (Remote Hub Unit) for transmitting and receiving signals with the terminal side. The method of claim 5, The RHU is a mobile communication repeater comprising an ODU for transmitting and receiving Ethernet packets for Ethernet communication.

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