KR101012009B1 - Compression techniques are based on a system for providing wireless communication services - Google Patents

Abstract

PURPOSE: A system for offering a wired/wireless communication service based on a compression technique is provided to transfer and compress a mobile communication signal and an internet data. CONSTITUTION: A master unit(110) transmits an RF signal transmitted from a mobile terminal through mobile communication network and Internet. A remote unit(170) transmits the RF signal transmitted from the mobile terminal through the mobile network and internet. The remote unit controls the compression of data and the mobile communications signal transmitted from the master unit. The remote unit transmits the compacted mobile communications signal to the mobile communications terminal.

Description

Compression techniques are based on a system for providing wireless communication services

The present invention is a system for providing a wired and wireless communication service based on a compression technology, and compresses and transmits a mobile communication signal transmitted from a mobile communication network and data transmitted from the Internet to a mobile communication terminal, or transmits to a mobile communication terminal. The present invention relates to a system for providing wired and wireless communication services based on a compression technology, comprising a master unit for transmitting a signal transmitted from a mobile communication network and the Internet.

With the development of new communication systems, it has become possible to transmit digital video information and data as efficiently as voice services. This communication system is composed of wired and wireless networks. As for wired networks, packet and circuit-switched network systems have evolved within the private or shared area for wide area or area. In the part of packet-based communication, a sufficient amount of data can be exchanged in a wide area network (WAN) such as a local area network (LAN) such as an internal infrastructure and a public internet network. Services for guaranteeing the quality of service (QoS) appear in this area of providing video and multimedia communications.

Problems arise when transmitting communication signals and data information in such a communication network. The first problem that arises is that the video information of the data information, in particular, video signals compressed with a digital signal requires a substantially larger bandwidth than a voice signal compressed at the same time interval. The transmission of image information between systems designed to have different nominal transmission bit rates introduces some difficulties due to this inadequate bit rate delay time. In addition, various error characteristics of different communication systems in the communication network have a problem in the transmission of communication signals and data information because it is very difficult to mask the error in the image space.

Accordingly, the present invention is to solve the problems raised in the prior art, the compression control of the mobile communication signal transmitted from the mobile communication network and data transmitted from the Internet to transmit to the mobile communication terminal, or a signal transmitted from the mobile communication terminal Transmits the signals transmitted from the master unit and the mobile communication terminal to the mobile communication network and the Internet to the mobile communication network and the Internet, or compresses and controls the mobile communication signals and data transmitted from the master unit to the mobile communication terminal. The present invention relates to a system for providing a wired / wireless communication service based on a compression technology for overcoming a transmission capacity limit by compressing and transmitting a mobile communication signal and internet data, including a remote unit.

The present invention for achieving the above object, in a system for providing a wireless communication service, the mobile communication signal transmitted from the mobile communication network and data transmitted from the Internet to control the compression to transmit to the mobile communication terminal, or the mobile A master unit for transmitting an RF signal transmitted from a communication terminal to the mobile communication network and the Internet; A remote unit transmitting the RF signal transmitted from the mobile communication terminal to the mobile communication network and the Internet, or compressing and controlling the mobile communication signal and data transmitted from the master unit to the mobile communication terminal; And a transmission medium for providing mutual communication between the master unit and the remote unit. It is an object of the present invention to provide a system for providing wired and wireless communication services based on a compression technology.

In this case, the mobile communication network may include CDMA, WCDMA, Wibro / Wimax, and LTE.

In addition, the master unit,

An optical transmission / reception unit configured to transmit / receive mobile communication signals transmitted from the mobile communication network and the mobile communication terminal; An internet transmitter / receiver for transmitting / receiving data signals transmitted from the internet and a mobile communication terminal; A digital processor for compressing and restoring a mobile communication signal and a data signal transmitted from the optical transmitter / receiver and the Internet transmitter / receiver; A first compression restoring control unit for compressing and restoring a mobile communication signal and a data signal processed by the digital processing unit; And a first transmitter configured to transmit a mobile communication signal and a data signal compressed and restored from the first compression restoration controller to a remote unit.

The optical transmitter / receiver includes an optical signal input unit configured to receive a mobile communication signal transmitted from the mobile communication network and the mobile communication terminal; A converting unit converting the mobile communication signal input from the optical signal input unit into an electrical signal; An optical frame unit to frame the signal converted from the conversion unit; An optical frame signal separator for separating a framed signal from the frame unit; And an optical frame reconstructing unit configured to reconstruct a signal separated from the optical frame signal separating unit into a digital signal.

The Internet transmitting / receiving unit may include: an internet signal input unit configured to receive data signals transmitted from the internet and the mobile communication terminal; And an internet frame unit configured to frame the data signal input from the internet signal input unit into a digital data signal.

The digital processing unit may include: a digital signal processing unit processing a digital signal reconstructed from the optical frame reconstruction unit; A first post-processing unit processing the digital signal processed from the digital signal processing unit; And an internet data processor configured to process the digital data signal framed from the internet frame unit.

The first compression restoring unit may include: a first compression restoring unit which compresses and restores the digital signal processed by the first post-processing unit; And a first control unit controlling a digital signal compressed and restored from the first compression restoring unit.

The first transmitter may perform frame manipulation or backward transmission from the remote unit to forward the digital data compressed and decompressed from the first compression restorer and the digital signal controlled from the first controller to the mobile communication terminal. It may include a first framer / deframer for extracting information of the frame for transmitting the digital signal to the mobile communication network and the Internet.

On the other hand, the remote unit,

An RF transmitter / receiver for receiving and transmitting an RF signal transmitted from the mobile communication terminal; An RF signal processor for processing the RF signal transmitted from the RF transmitter / receiver to be suitable for compression restoration; A second compression restoration controller configured to compress and restore the RF signal processed by the RF signal processor; And a second transmitter for transmitting the restored RF signal from the second compression restoration controller to the master unit.

The RF transmitter / receiver may include an RF signal input unit for receiving an RF signal transmitted from the mobile communication terminal.

The RF signal processing unit may include a second post-processing unit processing the RF signal input from the RF signal input unit.

The second compression restoring unit may include: a second compression restoring unit which compresses and restores the digital signal processed by the second post-processing unit; And a second control unit controlling a digital signal compressed and restored from the second compression restoring unit.

The second transmitter manipulates a frame for forward transmission of digital data decompressed from the second compression restorer and an RF signal controlled from the second controller to the mobile communication network and the Internet, or through the master unit. It may include a second framer / deframer for extracting the information of the frame in order to transmit the backward transmitted RF signal to the mobile communication terminal.

In this case, the transmission medium may be any one of an optic cable, a UTP cable, a coaxial cable, and a microwave.

As described above, a system for providing a wired / wireless communication service based on a compression technology according to the present invention provides a mobile communication terminal by compressing and controlling a mobile communication signal transmitted from a mobile communication network and data transmitted from the Internet. A master unit for transmitting a signal transmitted from a mobile communication terminal to a mobile communication network and the internet, and a signal transmitted from a mobile communication terminal to the mobile communication network and the internet, or a mobile communication signal and data transmitted from a master unit Including a remote unit for controlling the compression to transmit to the mobile communication terminal, there is an effect that can overcome the transmission capacity limit by compressing and transmitting the mobile communication signal and Internet data.

1 and 2 are configuration diagrams for a system for providing wired and wireless communication services based on a compression technology according to an embodiment of the present invention.
3 is a block diagram of a master unit employed in a system for providing wired and wireless communication services based on a compression technique according to an embodiment of the present invention.
4 is a configuration diagram of a remote unit employed in a system for providing a wired / wireless communication service based on a compression technology according to an embodiment of the present invention.

The matters relating to the operational effects including the technical configuration of the system for providing a wired / wireless communication service based on the compression technology according to the present invention will be described below with reference to the drawings showing preferred embodiments of the present invention. Will be clearly understood.

A system for providing wired and wireless communication services based on a compression technique according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4.

1 to 4 are configuration diagrams of a system for providing a wired and wireless communication service based on a compression technology according to an embodiment of the present invention, Figure 3 is based on a compression technology according to an embodiment of the present invention 4 is a configuration diagram of a master unit employed in a system for providing wired and wireless communication services, and FIG. 4 is employed in a system for providing wired and wireless communication services based on a compression technology according to an embodiment of the present invention. It is a block diagram of the remote unit.

1 to 4, a system 100 for providing a wired / wireless communication service based on a compression technology according to an embodiment of the present invention is a mobile communication signal transmitted from a mobile communication network 101. And compressively control data transmitted from the Internet 102 to be transmitted to the mobile communication terminal 105, or transmit RF signals transmitted from the mobile communication terminal 105 to the mobile communication network 101 and the Internet 102. The RF signal transmitted from the master unit 110 and the mobile communication terminal 105 to the mobile communication network 101 and the Internet 102, or the mobile communication signal and data transmitted from the master unit 110 It comprises a remote unit 170 to control the compression to transmit to the mobile communication terminal (105).

In addition, the transmission medium may be provided to provide communication between the master unit 110 and the remote unit 170. In this case, the transmission medium may be any one of an optic cable, a UTP cable, a coaxial cable, and a microwave.

The mobile communication network 101 is a communication network for connecting the network and the terminal 105 for the service of wireless communication from the mobile communication base station. That is, the mobile communication network 101 may be made of CDMA, WCDMA, Wibro / Wimax, and LTE. The Internet 102 is a communication network for connecting personal computers, personal computers, and small computers called personal computers.

The master unit 110 compressively controls the mobile communication signal transmitted from the mobile communication network 101 and the data transmitted from the Internet 102 to be transmitted to the mobile communication terminal 105, or from the mobile communication terminal 105. The transmitted RF signal may be transmitted to the mobile communication network 101 and the Internet 102. In this case, the RF signal transmitted from the mobile communication terminal 105 may be transmitted through the remote unit 170, which will be described in detail later.

The master unit 110 may include an optical transmitter / receiver 120, an internet transmitter / receiver 130, a digital processor 140, a first compression restoration controller 150, and a transmitter.

The optical transmitter / receiver 120 may transmit and receive mobile communication signals transmitted from the mobile communication network 101 and the mobile communication terminal 105. In this case, the light / transmitter may include an optical signal input unit 121, a converter 123, an optical frame unit 125, an optical frame signal separator, and an optical frame reconstruction unit 129.

The optical signal input unit 121 may receive a mobile communication signal transmitted from the mobile communication network 101 and the mobile communication terminal 105. The conversion unit 123 may convert the mobile communication signal input from the optical signal input unit 121 into an electrical signal. In this case, since the electrical signal converted through the changer is a high speed serial signal, it may be converted into a parallel signal through a serial / parallel to facilitate digital processing. The optical frame unit 125 may frame the signal converted from the conversion unit 123. That is, the optical frame unit 125 may frame the signal converted by the conversion unit 123 to have a frame structure having a specific standard. The signal separator may separate a framed signal from the frame unit. The optical frame reconstruction unit 129 may reconstruct a signal separated from the optical frame signal separation unit 127 into a digital signal.

The internet transmitter / receiver 130 may transmit and receive data signals transmitted from the internet 102 and the mobile communication terminal 105. In this case, the Internet transmitter / receiver 130 may include an internet signal input unit 131 and an internet frame unit 133. The internet signal input unit 131 may receive data signals transmitted from the internet 102 and the mobile communication terminal 105. The internet frame unit 133 may frame the data signal input from the internet signal input unit 131 into a digital data signal. That is, the Internet frame unit 133 may be framed according to the IEEE 802.3 standard.

The digital processor 140 may compress and restore mobile communication signals and data signals transmitted from the optical transmitter / receiver 120 and the internet transmitter / receiver 130. In this case, the digital processing unit 140 may include a digital signal processing unit 141, a first post-processing unit 143, and an internet data processing unit 145. The digital signal processor 141 may process the digital signal reconstructed from the optical frame reconstructor 129. That is, the digital signal processing unit 141 may process the digital signal so that the first pre-processing unit 143 configured to efficiently perform compression restoration may operate smoothly. In this case, the digital signal processor 141 may be in charge of functions such as band limitation, bandwidth control, sampling rate processing, and signal shape processing of the digital signal. The first post-processing unit 143 may process the digital signal processed by the digital signal processing unit 141. In more detail, the first post-processing unit 143 measures its state, that is, the power and noise power of the input signal, the SNR calculation, the bandwidth of the input signal, the center frequency of the input signal, the sampling rate, etc. Can be processed beforehand. In addition, the first post-processing unit 143 may later process the reverse process processed in the first compression restoring unit. The internet data control unit 145 may process the digital data signal framed by the internet frame unit 133.

The first compression restoration controller 150 may compress and restore the mobile communication signal and the data signal processed by the digital processor 140. In this case, the first compression restoration controller 150 may include a first compression restoration unit 151 and a first control unit 153. The first compression restoration controller 150 may restore the digital signal processed by the first post-processing unit 143. In this case, the first compression restoring unit 151 performs compression on a packet basis, and preferably adopts a structure that minimizes delay delayed through compression. In addition, the first compression restoring unit 151 restores the header information through the compressed signal, and the header includes a center frequency of the input signal, noise power of the input signal, and a modified sampling rate of the input signal. It is.

The first control unit 153 may control the digital signal compressed from the first compression restoring unit 151. The first transmitter 140 may transmit the compressed and restored mobile communication signal and data signal from the first compression restoration controller 150 to the remote unit 170. In this case, the first transmitter 140 inserts various signals transmitted from the mobile communication network 101 and the Internet 102 into a device bit Ethernet frame to use the remote unit 170 using one or more cables. Can be sent. The first transmitter 140 may include a first framer / deframer 161. The first framer / deframer 161 forward-transfers the digital data decompressed from the first compression restoring unit 151 and the digital signal controlled from the first control unit 153 to the mobile communication terminal 105. For example, the frame information may be extracted to transmit a digital signal transmitted backward from the remote unit 170 to the mobile communication network 101 and the Internet 102. In this case, the first framer / deframer 161 may be adopted as a structure in which the length of the frame can be changed so that more efficient data transmission can be made without using a fixed frame size. That is, the first gigabit Ethernet may be configured to efficiently carry out mobile communication signals and data transmission by providing a header item that can specify a length because the length of the compressed signal is changed. In addition, in order to control the remote unit 170 remotely and check the status, a separate control data channel may be provided so that a channel for checking remote download, control, and status may be configured in a separate area. The first gigabit Ethernet configured as described above may be connected to an RJ-45 connector and an optical connector through a gigabit physical chip.

In this case, when the first post-processing unit 143 and the first compression restoring unit 150 describe the basic operation in the forward direction in detail, the first compression restoration unit 151 is the first post-processing unit ( If it is determined that the state of the first post-processing unit 143 transmitted from 143 is a normal state, the first control unit 153 instructs the first post-processing unit 143 to measure a parameter. The first post-processing unit 143 measures the parameter according to the command of the first control unit 153 and reports the characteristic measurement and evaluation of the signal. Then, the first control unit 153 compares the measurement value and the evaluation value of the signal reported from the first pre-processing unit 143 with the already designated reference value to calculate the difference and change the first pre-processing unit. Instruct (143) to adjust the parameter so that the parameter can be readjusted. Next, the first pre-processing unit 143 transmits the readjusted parameter to the first compression restoring unit 151. Then, the first compression restoring unit 151 may receive the compression rate requested by the user from the control unit and compress the output of the first post-processing unit 143. During this operation, the first compression restoring unit 151 notifies the first post-processing unit 143 of the characteristic coupling signal of the first compression restoring unit 151. The first pre-post-processing unit 143 which has received the characteristic coupling signal of the first compression restoring unit 151 determines whether the compression is normally performed, and if it finds a parameter to be adjusted, the first control unit 153. You can notify me. At this time, the first control unit 153 notifies the first compression restoration unit 151 of the first compression restoration unit 151 parameter change request to maintain the compression ratio desired by the user. You can fine tune compression related parameters. That is, the first post-processing unit 143 and the first compression restoring unit 151 may monitor the characteristics of the compression and the characteristics of the signal in real time and finely adjust the parameters according to the situation.

In addition, when the first post-processing unit 143 and the first compression restoring unit 150 describe the basic operations in the reverse direction, the first pre-processing unit 143 and the first compression restoring unit 150 are transmitted from the mobile communication terminal 105, that is, the remote unit 170. The RF signal is separated overhead through a first deframer and the signal is separated into an Ethernet signal and a compressed signal. The Ethernet signal is transmitted to the digital processor 140, and the compressed signal is performed through the first compression restorer 151 and the first controller 153 to perform a restoration process that is the opposite of compression. 140). The digital processor 140 reproduces the signal from which the restoration process is performed as a previous mobile communication signal and data signal and transmits the same to the optical transmitter / receiver 120. In this case, the optical / transmitter / receiver may map and frame the mobile communication signal in accordance with a frame for transmitting the signal reproduced through the digital signal processor to the mobile communication network. The Internet 102 transmitter / receiver may convert the data signal reproduced through the digital signal processor 141 to the Internet 102 in order to transmit the data signal to the Internet 102.

The remote unit 170 transmits an RF signal transmitted from the mobile communication terminal 105 to the mobile communication network 101 and the Internet 102, or a mobile communication signal and data transmitted from the master unit 110. Compression control to be transmitted to the mobile communication terminal (105).

The remote unit 170 may include an RF transmitter / receiver 180, an RF signal processor 190, a second compression restoration controller 210, and a second transmitter 210. The RF transmitter / receiver 180 may receive and transmit an RF signal transmitted from the telecommunication terminal 105. In this case, the RF transmitter / receiver 180 may include an RF signal input unit 181 for receiving an RF signal transmitted from the mobile communication terminal 105. The RF signal processor 190 may process the RF signal generated from the RF transmitter / receiver 180 to be suitable for compression restoration. In this case, the RF signal processing unit 190 may include a second pre-post processing unit 191. The second post-processing unit 191 may process the RF signal input from the signal input unit. The second compression restoring control unit 210 may compress and restore the RF signal processed by the RF signal processing unit 190. In this case, the second compression restoration control unit 210 may include a second compression restoration unit 201 and a second control unit 203. The second compression restoring unit 201 compresses and restores the digital signal processed by the second post-processing unit 191, and the second control unit 203 compresses and restores the second compression restoring unit 201. Digital signals can be controlled.

The second transmitter 210 may transmit the RF signal restored from the second compression restoration controller to the master unit 110. In this case, the second transmitter 210 may include a second framer / deframer 211. The second framer / deframer 211 transmits the digital data decompressed from the second compression restoring unit 201 and the RF signal controlled from the second control unit 203 to the mobile communication network 101 and the Internet ( Forward transmission to the 102, or the RF signal transmitted backward through the master unit 110 may be transmitted to the mobile communication terminal 105.

As such, the system for providing a wired / wireless communication service based on the compression technology according to the present invention compresses and controls the mobile communication signal transmitted from the mobile communication network 101 and the data transmitted from the Internet 102 for mobile communication. A signal transmitted from the master unit 110 and the mobile communication terminal 105 to be transmitted to the terminal 105 or transmitted from the mobile communication terminal 105 to the mobile communication network 101 and the Internet 102. Including a remote unit 170 for transmitting to the mobile communication network 101 and the Internet 102, or compresses and controls the mobile communication signal and data transmitted from the master unit 110 to the mobile communication terminal 105. In addition, the transmission capacity limitation can be overcome by compressing and transmitting mobile communication signals and Internet data.

Although the preferred embodiments of the present invention described above have been described in detail, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Accordingly, the scope of the present invention should not be limited to the disclosed embodiments but should be regarded as belonging to various modifications and improvements of those skilled in the art using the basic concept of the present invention as defined in the following claims, or the scope of the present invention. .

100: System for providing wired / wireless communication service based on compression technology
101: mobile communication network 102: the Internet
105: mobile communication terminal 110: master unit
170: remote unit

Claims (14)

In the system for providing a wireless communication service,
A master unit for compressing and controlling a mobile communication signal transmitted from a mobile communication network and data transmitted from the Internet to a mobile communication terminal, or transmitting an RF signal transmitted from the mobile communication terminal to the mobile communication network and the Internet;
A remote unit transmitting the RF signal transmitted from the mobile communication terminal to the mobile communication network and the Internet, or compressing and controlling the mobile communication signal and data transmitted from the master unit to the mobile communication terminal; And
A transmission medium providing mutual communication between the master unit and the remote unit;
System for providing wired and wireless communication services based on the compression technology comprising a.
The method of claim 1,
The mobile communication network is CDMA, WCDMA, Wibro / Wimax, LTE system for providing a wired and wireless communication service based on a compression technology, characterized in that made of LTE.
The method of claim 1,
The master unit,
An optical transmission / reception unit configured to transmit / receive mobile communication signals transmitted from the mobile communication network and the mobile communication terminal;
An internet transmitter / receiver for transmitting / receiving data signals transmitted from the internet and a mobile communication terminal;
A digital processor for compressing and restoring a mobile communication signal and a data signal transmitted from the optical transmitter / receiver and the Internet transmitter / receiver;
A first compression restoring control unit for compressing and restoring a mobile communication signal and a data signal processed by the digital processing unit; And
A first transmitter which transmits the compressed and restored mobile communication signal and data signal from the first compression restoration controller to a remote unit;
System for providing wired and wireless communication services based on the compression technology comprising a.
The method of claim 3, wherein
The optical transmission / reception unit,
An optical signal input unit for receiving a mobile communication signal transmitted from the mobile communication network and the mobile communication terminal;
A converting unit converting the mobile communication signal input from the optical signal input unit into an electrical signal;
An optical frame unit to frame the signal converted from the conversion unit;
An optical frame signal separator for separating a framed signal from the frame unit; And
An optical frame reconstruction unit for reconstructing the signal separated from the optical frame signal separation unit into a digital signal;
System for providing wired and wireless communication services based on the compression technology comprising a.
The method of claim 3, wherein
The Internet transmission and reception unit,
An internet signal input unit for receiving data signals transmitted from the internet and the mobile communication terminal; And
An internet frame unit configured to frame the data signal input from the internet signal input unit into a digital data signal;
System for providing wired and wireless communication services based on the compression technology comprising a.
6. The method according to any one of claims 3 to 5,
The digital processing unit,
A digital signal processor which processes the digital signal reconstructed from the optical frame reconstruction unit;
A first post-processing unit processing the digital signal processed from the digital signal processing unit; And
An internet data processor for processing digital data signals framed from the internet frame unit;
System for providing wired and wireless communication services based on the compression technology comprising a.
The method of claim 6,
The first compression restore control unit,
A first compression restoring unit for compressing and restoring the digital signal processed from the first post-processing unit; And
A first control unit controlling a digital signal compressed and restored from the first compression restorer;
System for providing wired and wireless communication services based on the compression technology comprising a.
The method of claim 7, wherein
The first transmission unit,
The mobile communication network performs frame manipulation for forward transmission of the digital data compressed and decompressed from the first compression restoring unit and the digital signal controlled from the first control unit to the mobile communication terminal, or the digital signal transmitted backward from the remote unit. And a first framer / deframer for extracting information of a frame for transmission to the Internet.
The method of claim 1,
The remote unit,
An RF transmitter / receiver for receiving and transmitting an RF signal transmitted from the mobile communication terminal;
An RF signal processor for processing the RF signal transmitted from the RF transmitter / receiver to be suitable for compression restoration;
A second compression restoration controller configured to compress and restore the RF signal processed by the RF signal processor; And
A second transmitter for transmitting the RF signal restored from the second compression restoration controller to the master unit;
System for providing wired and wireless communication services based on the compression technology comprising a.
The method of claim 9,
The RF transmission and reception unit,
System for providing wired and wireless communication services based on the compression technology, characterized in that it comprises an RF signal input unit for receiving an RF signal transmitted from the mobile communication terminal.
The method of claim 10,
The RF signal processing unit,
And a second post-processing unit for processing the RF signal input from the signal input unit.
12. The method of claim 11,
The second compression restore control unit,
A second compression restoring unit for compressing and restoring the digital signal processed from the second post-processing unit; And
A second control unit controlling a digital signal compressed and restored from the second compression restorer;
System for providing wired and wireless communication services based on the compression technology comprising a.
The method of claim 12,
The second transmitter manipulates a frame for forward transmission of digital data decompressed from the second compression restorer and an RF signal controlled from the second controller to the mobile communication network and the Internet, or reversely through the master unit. And a second framer / deframer for extracting information of a frame to transmit the transmitted RF signal to the mobile communication terminal.
The method of claim 1,
The transmission medium is a system for providing wired and wireless communication services based on a compression technology, characterized in that consisting of any one of the optical cable, UTP cable, coaxial cable, microwave.

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