CN103634820B - The method and apparatus that a kind of signal sends - Google Patents

Abstract

Embodiments of the present invention provide a method and device for signal transmission, which relate to the field of optical communication to ensure that remote devices obtain sufficient communication capacity. The method includes: the access device receives detection information sent by all remote devices, and according to the The detection information determines the number of cells corresponding to all the remote devices, sends a signal request message to the source, receives the radio frequency signal corresponding to the number of cells sent by the source, and sends the radio frequency signal to The remote equipment of each cell, the embodiment of the method is used to send radio frequency signals.

Description

A method and device for signal transmission

technical field

The present invention relates to the field of optical communication, in particular to a signal sending method and equipment.

Background technique

Communication capacity distribution system is a new type of indoor distribution system, which consists of three parts: access equipment, expansion equipment and remote equipment. The access device is used to convert the radio frequency signal from the source (such as a base station) into an optical signal through frequency conversion, digital-to-analog conversion, and photoelectric conversion, and transmit it to the extension device through optical fiber. In order to realize the multi-network integration of the communication capacity distribution system, the remote equipment is converted into a radio frequency signal through photoelectric conversion, digital-to-analog conversion, and frequency conversion conversion, and transmits the radio frequency signal to the terminal through the antenna.

In the prior art, after receiving the radio frequency signal sent by the access device, the extension device sends the radio frequency signal to the remote device connected to the extension device. In this way, if the traffic in the working area of the optical fiber distribution system changes, It will lead to insufficient communication capacity in the area, so that communication services cannot be guaranteed.

Contents of the invention

Embodiments of the present invention provide a signal sending method and device to ensure that a remote device obtains sufficient communication capacity.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In the first aspect, a method for sending a signal is provided, including:

The access device receives the detection information sent by all remote devices;

determining the number of cells corresponding to all the remote devices according to the detection information;

sending a signal request message to a source, where the signal request message includes the number of cells;

receiving radio frequency signals corresponding to the number of cells sent by the information source, and sending the radio frequency signals to the remote equipment of each cell.

In the second aspect, a method for sending a signal is provided, including:

The remote device obtains detection information;

sending the detection information to the access device, so that the access device determines the number of cells corresponding to all remote devices according to the detection information, and sends a signal request message to a source, wherein the signal request message includes The number of the cells, the access device receives the radio frequency signal corresponding to the number of the cells sent by the source, and sends the radio frequency signal to the remote device of each cell;

Receive a radio frequency signal sent by the access device.

In a third aspect, a method for sending a signal is provided, including:

After the access device receives the detection information sent by all the remote devices and determines the number of cells corresponding to all the remote devices according to the detection information, the source receives the signal request message sent by the access device, wherein, The signal request message includes the number of cells;

Send radio frequency signals corresponding to the number of cells to the access device, so that the access device sends the radio frequency signals to remote devices in each cell.

In a fourth aspect, an access device in an optical fiber distribution system is provided, including:

an acquisition unit, configured to receive detection information sent by all remote devices;

a processing unit, configured to determine the number of cells corresponding to all the remote devices according to the detection information obtained by the acquiring unit;

A sending unit, configured to send a signal request message to a source, where the signal request message includes the number of cells;

The obtaining unit is further configured to receive radio frequency signals corresponding to the number of cells sent by the information source;

The sending unit is further configured to send the radio frequency signal obtained by the acquiring unit to the remote equipment of each cell.

In the fifth aspect, a remote device in an optical fiber distribution system is provided, including:

an acquisition unit, configured to acquire detection information;

A sending unit, configured to send the detection information obtained by the acquisition unit to the access device, so that the access device determines the number of cells corresponding to all remote devices according to the detection information, and sends a signal request message to a source , wherein the signal request message includes the number of the cells, the access device receives the radio frequency signal corresponding to the number of the cells sent by the source, and sends the radio frequency signal to the remote end of each cell equipment;

The obtaining unit is further configured to receive a radio frequency signal sent by the access device.

The sixth aspect provides a source of information, including:

The acquisition unit is configured to receive the signal request message sent by the access device after the access device receives the detection information sent by all the remote devices and determines the number of cells corresponding to all the remote devices according to the detection information , wherein the signal request message includes the number of cells;

A sending unit, configured to send radio frequency signals corresponding to the number of cells to the access device, so that the access device sends the radio frequency signals to remote devices in each cell.

By adopting the above solution, the access device receives the detection information sent by all the remote devices, determines the number of cells corresponding to all the remote devices according to the detection information, sends a signal request message to the source, and receives the signal The source sends the radio frequency signal corresponding to the number of the cells, and sends the radio frequency signal to the remote equipment of each cell. When the number of terminals in the optical fiber distribution system changes, the access device passes the detection information and preset The division method adjusts the number of cells, and applies for radio frequency signals according to the number of cells, so as to ensure that the remote equipment obtains sufficient communication capacity.

Description of drawings

FIG. 1 is a system diagram of signal transmission provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a signal sending method provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of another signal sending method provided by an embodiment of the present invention;

FIG. 4 is a schematic flowchart of another signal sending method provided by an embodiment of the present invention;

FIG. 5 is a schematic flowchart of another signal sending method provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an access device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a remote device provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an information source provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The following embodiments of the present invention are applied to an optical fiber distribution system. As shown in FIG. 1, the system includes: an access device, an extension device, and a remote device, the access device is connected to the remote device through the extension device, and the access device One or more extension devices can be connected, the extension device can be connected to one or more remote devices, multiple extension devices can be connected in series, the access device receives the radio frequency signal sent by the source, and sends the radio frequency signal through the extension device To the remote device connected to the extension device, the remote device receives the radio frequency signal sent by the access device through the extension device, and transmits information to the terminal according to the radio frequency signal.

An embodiment of the present invention provides a method for signal transmission, as shown in Figure 2, the execution subject of the method is the access device in the optical fiber distribution system, and the access device is connected to multiple remote devices through the expansion device, the method include:

S201. The access device receives detection information sent by all remote devices.

Wherein, the detection information includes received signal power and noise power of the remote device.

Specifically, the received signal power is obtained by the remote device by detecting the resource block, which is used to carry the uplink signal sent by the terminal to the remote device, and the number of the resource blocks can be determined according to the channel bandwidth provided by the optical fiber distribution system , if the channel bandwidth is determined to be 10MHz, then 50 resource blocks can be determined. The noise power is the power when the remote device does not receive any signal. Since the unified standard is adopted for design and production, the noise power of each remote device is the same .

S202. The access device determines the number of cells corresponding to all the remote devices according to the detection information.

Specifically, the access device determines at least two preset division methods, obtains the total communication capacity corresponding to all remote devices according to the at least two preset division methods and the detection information, and determines the maximum For the total communication capacity, the number of corresponding cells is determined according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum total communication capacity is the maximum value of the total total communication capacity.

For example, if the access device determines that there are 8 remote devices in the optical fiber distribution system, which are respectively recorded as remote device 1 to remote device 8, then it can be determined that the first preset division method is the division of the 8 remote devices For the same cell, it can also be determined that the second preset division method is to divide remote device 1 to remote device 3 into cell 1, divide remote device 4 to remote device 6 into cell 2, and divide remote device 7 into cell 2. and the remote device 8 are divided into cells 3, if it is determined according to the calculation that the total communication capacity under the second preset division method is the largest among the total communication capacity under all the preset division methods, then it can be divided according to the second preset The method determines that the number of corresponding cells is 3.

It should be noted that the maximum number of corresponding cells determined by the access device according to the preset division method may be preset according to information sources in advance.

For example, the signal source may be a BBU (Building Base band Unit, indoor baseband processing unit). A BBU baseband board supports up to three cells. At this time, the preset division method divides all remote devices into three cells at most. .

Further, the access device determines all terminals and the total number of terminals according to the detection information.

Specifically, when the signal power of the resource block is greater than the noise power, the access device determines that there is a corresponding terminal, and the signal power of the resource block is the signal power of the terminal. The signal power of the block can determine all terminals and determine the total number of terminals.

For example, when the remote device detects the resource block, it can determine the signal power of the terminal according to the power of the signal carried by the resource block. After each remote device sends the detected information to the access device, if the access device determines that the If the signal power of the terminal is greater than the noise power, it is determined that there is a corresponding terminal in the resource block, and the access device can determine the total number of terminals by the amount of signal power greater than the noise power.

Further, the access device determines the closest remote device corresponding to each terminal, and determines the maximum received signal power corresponding to the terminal.

Specifically, the detection information obtained by the access device includes the received signal power obtained by each remote device from detecting resource blocks, that is, the signal power of each terminal detected by each remote device. Since the signal sent by the terminal to the remote device is Power will be lost during transmission. Therefore, after the access device determines the corresponding terminal according to the detection information, and then determines the maximum value of the signal power of the terminal detected by each remote device, then the remote terminal closest to the terminal can be determined. device, the maximum value of the signal power of the terminal detected by each remote device is the maximum received signal power corresponding to the terminal.

Furthermore, if all the remote devices are divided into one cell, then the access device according to the formula Determine the SINR corresponding to the mth terminal.

Among them, P _rm is the maximum received signal power corresponding to the terminal, and N _r is the noise power of the remote device.

It should be noted that when all remote devices are divided into at least two cells according to the preset division method, since the signals used by different cells may cause co-channel interference, when calculating the signal-to-interference-noise ratio corresponding to the terminal, it should be Consider the impact of interference signals from other cells.

Specifically, if all the remote devices are divided into at least two cells, the access device according to the formula Determine the SINR corresponding to the mth terminal.

Wherein, P _rm is the maximum received signal power corresponding to the mth terminal, N _r is the noise power of the remote device, and _PI is the interference signal power received by the remote device.

Further, in each preset division mode, the access device determines the communication capacity corresponding to the m-th terminal through the first formula.

Specifically, the first formula is: TP _m =Blog ₂ (1+S _m ).

Wherein, TP _m is the communication capacity corresponding to the m-th terminal, B is the channel bandwidth, and S _m is the signal-to-interference-noise ratio corresponding to the m-th terminal.

Further, the access device determines the total communication capacity corresponding to dividing all the remote devices into n cells by using the second formula.

Specifically, the second formula is:

Among them, Cn is the total communication capacity corresponding to dividing all remote devices into n cells, TP _m is the communication capacity of the mth remote device, N is the total number of resource blocks, and n is the number of cells corresponding to the preset division method Quantity, M is the total number of terminals.

Specifically, TP ₁ to is the terminal corresponding to the remote device of the first cell determined according to the preset division method, to is the terminal corresponding to the remote device of the second cell determined according to the preset division method, and so on, To _TPM is the terminal corresponding to the remote device in the nth (last) cell determined according to the preset division method.

For example, there are three remote devices in the optical fiber distribution system, which are respectively recorded as remote device 1 to remote device 3. The preset division method is to divide all remote devices into a cell, and the access device receives the After the detection information sent by remote device 1 to remote device 3, according to the detection information, it is determined that there are 5 terminals, which are respectively recorded as terminal 1 to terminal 5, and corresponding to all terminals received by remote device 1 to remote device 3. The received signal power of the terminal 2 and terminal 4 detected by the remote device 1 is determined to be the largest, the received signal power of the terminal 1 detected by the remote device 2 is the largest, and the received signal power of the terminal 3 detected by the remote device 3 is the largest. If the received signal power corresponding to terminal 5 is the largest, the access device can determine that the remote device 2 is the closest to terminal 1, the remote device 1 is the closest to terminal 2 and terminal 4, and the closest to terminal 23 and terminal 5 is is the remote device 3, the access device can record the maximum received signal power corresponding to terminal 1 to terminal 5 as P1 to P5 respectively, and can determine the signal interference noise corresponding to terminal 1 to terminal 5 according to the maximum received signal power P1 to P5 The ratios are S1 to S5 respectively. Through the first formula, the access device can determine the communication capacities corresponding to Terminal 1 to Terminal 5 as TP1 to TP5 respectively according to the SIN ratios S1 to S5 corresponding to Terminal 1 to Terminal 5. Through the second formula According to the formula, the access device can determine the total communication capacity of the optical fiber distribution system as C1 according to the communication capacities TP1 to TP5.

It should be noted that, according to different preset division methods, the number of terminals sharing a resource block corresponding to a cell is also different, so the communication capacity corresponding to a terminal determined according to the first formula is the throughput of the terminal on a resource block , the total communication capacity determined by the second formula is the total communication capacity of the optical fiber distribution system when all terminals are equally allocated all resource blocks.

S203. The access device sends a signal request message to the source.

Wherein, the signal request message includes the number of the cell.

Specifically, after the access device determines the maximum communication capacity and determines the number of cells according to the preset division method corresponding to the maximum communication capacity, it sends a signal request message including the number of cells to the information source.

For example, if it is determined that the number of cells is 3, a signal request message is sent to the source, where the signal request message includes the number of cells (3 in the embodiment of the present invention), and the source sends a signal request message to the access device There should be radio frequency signals from 3 cells.

S204. The access device receives radio frequency signals corresponding to the number of the cells sent by the information source, and sends the radio frequency signals to remote devices in each cell.

Specifically, after receiving the signal request message, the information source provides radio frequency signals corresponding to the number of the cells, and the access device receives the radio frequency signals and sends the radio frequency signals to remote devices corresponding to the cells.

It should be noted that when the access device determines that the number of users decreases according to the detection information, and determines that the number of cells corresponding to the preset division method decreases according to the above steps S201 to S204, it can send a signal request message to the information source so that the information source reduces Provide radio frequency signals to save resources.

By adopting the method in which the execution subject is the access device, the access device receives the detection information sent by all the remote devices, determines the number of cells corresponding to all the remote devices according to the detection information, and sends a signal request message to the information source, And receive the radio frequency signal corresponding to the number of the cell sent by the source, and send the radio frequency signal to the remote device of each cell. When the number of terminals in the optical fiber distribution system changes, the access device passes the detection information and The preset division method adjusts the number of cells, and applies for radio frequency signals according to the number of cells, so as to ensure that the remote device obtains sufficient communication capacity.

The embodiment of the present invention provides a method for signal transmission, as shown in Figure 3, the execution subject of the method is the remote device in the optical fiber distribution system, the remote device is connected to the access device through the expansion device, the method includes:

S301. The remote device acquires detection information.

The detection information includes: received signal power and noise power of the remote device.

Specifically, the received signal power is obtained by the remote device by detecting the resource block, which is used to carry the uplink signal sent by the terminal to the remote device, and the number of the resource blocks can be determined according to the channel bandwidth provided by the optical fiber distribution system , if the channel bandwidth is determined to be 10MHz, then 50 resource blocks can be determined. The noise power is the power when the remote device does not receive any signal. Since the unified standard is adopted for design and production, the noise power of each remote device is the same .

S302. The remote device sends the detection information to the access device, so that the access device determines the number of cells corresponding to all the remote devices according to the detection information, and sends a signal request message to the information source, and the access device receives the The information source sends radio frequency signals corresponding to the number of the cells, and sends the radio frequency signals to the remote equipment of each cell.

Wherein, the signal request message includes the number of the cell.

S303. The remote device receives the radio frequency signal sent by the access device.

Specifically, the access device sends radio frequency signals to the remote devices corresponding to the cells according to the preset division method, and the remote devices receive the radio frequency signals and transmit information with the terminal through the radio frequency signals.

By adopting the method in which the execution subject is the remote device, the remote device sends detection information to the access device. When the number of terminals in the optical fiber distribution system changes, the access device adjusts the number of cells according to the detection information and the preset division method. number, and apply for radio frequency signals according to the number of cells to ensure that the remote device obtains sufficient communication capacity.

An embodiment of the present invention provides a method for sending a signal. As shown in FIG. 4 , the execution subject of the method is the source, and the method includes:

S401. After the access device receives the detection information sent by all the remote devices and determines the number of cells corresponding to all the remote devices according to the detection information, the source receives the signal request message sent by the access device.

Wherein, the signal request message includes the number of the cell.

S402. The information source sends radio frequency signals corresponding to the number of the cells to the access device, so that the access device sends the radio frequency signals to remote devices in each cell.

Specifically, the information source determines the number of cells according to the signal request message, and sends radio frequency signals corresponding to the number of cells to the access device.

For example, if the information source determines that the access device divides all remote devices into 3 cells according to the signal request message, the information source sends radio frequency signals corresponding to the 3 cells to the access device.

By adopting the above-mentioned method in which the execution subject is the information source, the information source sends the radio frequency signal according to the signal request message of the access device. When the number of terminals in the optical fiber distribution system changes, the access device adjusts through the detection information and the preset division method. The number of cells, and apply for radio frequency signals according to the number of cells to ensure that the remote device obtains sufficient communication capacity.

An embodiment of the present invention provides a method for signal transmission, as shown in FIG. 5, the method includes:

S501. The remote device acquires detection information.

Wherein, the detection information includes received signal power and noise power of the remote device.

Specifically, the received signal power is determined by the remote device by detecting the resource block, which is used to carry the uplink signal sent by the terminal to the remote device, and the number of the resource blocks can be determined according to the channel bandwidth provided by the optical fiber distribution system , if the channel bandwidth is determined to be 10MHz, then 50 resource blocks can be determined. The noise power is the power when the remote device does not receive any signal. Since the unified standard is adopted for design and production, the noise power of each remote device is the same .

S502. The remote device sends the detection information to the access device.

S503. The access device determines at least two preset division manners.

Specifically, the maximum number of corresponding cells determined by the access device according to the preset division manner may be preset in advance according to information sources.

S504. The access device determines all terminals according to the detection information.

Specifically, when the signal power of the resource block is greater than the noise power, the access device determines that there is a corresponding terminal, and the signal power of the resource block is the signal power of the terminal. The signal power of the block can determine all terminals and determine the total number of terminals.

For example, when the remote device detects the resource block, it can determine the signal power of the terminal according to the power of the signal carried by the resource block. After each remote device sends the detected information to the access device, if the access device determines that the If the signal power of the terminal is greater than the noise power, it is determined that there is a corresponding terminal in the resource block, and the access device can determine the total number of terminals by the amount of signal power greater than the noise power.

S505. The access device determines the SINR corresponding to the terminal.

Further, the access device determines the closest remote device corresponding to each terminal, and determines the maximum received signal power corresponding to the terminal.

Specifically, the detection information obtained by the access device includes the received signal power obtained by each remote device from detecting resource blocks, that is, the signal power of the terminal detected by each remote device. Since the signal sent by the terminal to the remote device is being transmitted Therefore, after determining the corresponding terminal according to the detection information, the access device determines the maximum value of the signal power of the terminal detected by each remote device, and then can determine the remote device closest to the terminal , the maximum value among the signal powers of the terminal detected by each remote device is the maximum received signal power corresponding to the terminal.

Furthermore, if all the remote devices are divided into one cell, then the access device according to the formula Determine the SINR corresponding to the mth terminal.

Among them, P _rm is the maximum received signal power corresponding to the terminal, and N _r is the noise power of the remote device.

It should be noted that when all remote devices are divided into at least two cells according to the preset division method, since the signals used by different cells may cause co-channel interference, when calculating the signal-to-interference-noise ratio corresponding to the terminal, it should be Consider the impact of interference signals from other cells.

Specifically, if all the remote devices are divided into at least two cells, the access device according to the formula Determine the SINR corresponding to the mth terminal.

Wherein, P _rm is the maximum received signal power corresponding to the mth terminal, N _r is the noise power of the remote device, and _PI is the interference signal power received by the remote device.

S506. The access device determines the communication capacity corresponding to the terminal according to the SINR.

Specifically, the access device determines the communication capacity corresponding to each terminal through the first formula.

Further, the first formula is: TP _m =Blog ₂ (1+S _m ).

Wherein, TP _m is the communication capacity corresponding to the m-th terminal, B is the channel bandwidth, and S _m is the signal-to-interference-noise ratio corresponding to the m-th terminal.

S507. The access device determines the total communication capacity according to the communication capacity of each terminal.

Specifically, the access device determines the total communication capacity corresponding to dividing all the remote devices into n cells by using the second formula.

Further, the second formula is:

Among them, Cn is the total communication capacity corresponding to dividing all remote devices into n cells, TP _m is the communication capacity of the mth remote device, N is the total number of resource blocks, and n is the number of cells corresponding to the preset division method Quantity, M is the total number of terminals.

Specifically, TP ₁ to is the terminal corresponding to the remote device of the first cell determined according to the preset division method, to is the terminal corresponding to the remote device of the second cell determined according to the preset division method, and so on, To _TPM is the terminal corresponding to the remote device in the nth (last) cell determined according to the preset division method.

For example, there are three remote devices in the optical fiber distribution system, which are respectively recorded as remote device 1 to remote device 3. The preset division method is to divide all remote devices into a cell, and the access device receives the After the detection information sent by the remote device 1 to the remote device 3, it is determined according to the detection information that there are 5 terminals, which are respectively recorded as the terminal 1 to the terminal 5, and according to the information received by the remote device 1 to the remote device 3 Signal power, determine that the signal power of terminal 2 and terminal 4 detected by remote device 1 is the largest, the signal power of terminal 1 detected by remote device 2 is the largest, and the signal power of terminal 3 and terminal 5 detected by remote device 3 is the largest, the access device can determine that the remote device 2 is the closest to terminal 1, the remote device 1 is the closest to terminal 2 and terminal 4, the remote device 3 is the closest to terminal 2 and terminal 5, and the access device The signal powers corresponding to terminals 1 to 5 can be recorded as P1 to P5 respectively. According to the signal powers P1 to P5, the signal-to-interference-noise ratios corresponding to terminals 1 to 5 can be determined as S1 to S5 respectively. Through the first formula, the access According to the signal-to-interference and noise ratios S1 to S5, the device can determine the corresponding communication capacities of terminal 1 to terminal 5 as TP1 to TP5 respectively. Through the second formula, the access device can determine the total communication of the optical fiber distribution system according to the communication capacities TP1 to TP5 The capacity is C1.

It should be noted that, according to different preset division methods, the number of terminals sharing a resource block corresponding to a cell is also different, so the communication capacity corresponding to a terminal determined according to the first formula is the throughput of the terminal on a resource block , the total communication capacity determined by the second formula is the total communication capacity of the optical fiber distribution system when all terminals are equally allocated all resource blocks.

S508. The access device determines the maximum total communication capacity, and determines the number of corresponding cells according to the preset division mode corresponding to the maximum total communication capacity.

Specifically, the access device determines the maximum total communication capacity from the obtained total total communication capacity, and determines the number of corresponding cells according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum total communication capacity is the total The maximum value of the total communication capacity.

For example, if the access device determines that there are 8 remote devices in the optical fiber distribution system, which are respectively recorded as remote device 1 to remote device 8, then it can be determined that the first preset division method is the division of the 8 remote devices For the same cell, it can also be determined that the second preset division method is to divide remote device 1 to remote device 3 into cell 1, divide remote device 4 to remote device 6 into cell 2, and divide remote device 7 into cell 2. and the remote device 8 are divided into cells 3, if it is determined according to the calculation that the total communication capacity under the second preset division method is the largest among the total communication capacity under all the preset division methods, then it can be divided according to the second preset The method determines that the number of corresponding cells is 3.

S509. The access device sends a signal request message to the source.

Wherein, the signal request message includes the number of the cell.

Specifically, after the access device determines the maximum communication capacity and determines the number of cells according to the preset division method corresponding to the maximum communication capacity, it sends a signal request message including the number of cells to the information source.

For example, if it is determined that the number of cells is 3, a signal request message is sent to the source, where the signal request message includes the number of cells (3 in the embodiment of the present invention), and the source sends a signal request message to the access device There should be radio frequency signals from 3 cells.

S5010. The information source sends radio frequency signals corresponding to the number of the cells to the access device.

Specifically, the information source determines the number of cells according to the signal request message, and sends radio frequency signals corresponding to the number of cells to the access device.

S5011. The access device sends the radio frequency signal to the remote device.

Specifically, the access device receives the radio frequency signal, and sends the radio frequency signal to the remote device corresponding to the cell.

By using the above method of signal transmission, when the number of terminals in the optical fiber distribution system changes, the access device adjusts the number of cells through the detection information and the preset division method, and applies for radio frequency signals according to the number of cells to ensure that the remote The device acquires sufficient communication capacity.

An embodiment of the present invention provides an access device 60 in an optical fiber distribution system, as shown in FIG. 6 , including:

The obtaining unit 61 is configured to receive detection information sent by all remote devices.

The processing unit 62 is configured to determine the number of cells corresponding to all the remote devices according to the detection information obtained by the obtaining unit 61 .

The sending unit 63 is configured to send a signal request message to a source, where the signal request message includes the number of cells determined by the processing unit 62 .

The acquiring unit 61 is also configured to receive radio frequency signals sent by the information source and corresponding to the number of the cells.

The sending unit 63 is also configured to send the radio frequency signal obtained by the acquiring unit to the remote equipment of each cell.

Wherein, the detection information includes received signal power and noise power of the remote device.

Specifically, the received signal power is determined by the remote device by detecting the resource block, which is used to carry the uplink signal sent by the terminal to the remote device, and the number of the resource blocks can be determined according to the channel bandwidth provided by the optical fiber distribution system , if the channel bandwidth is determined to be 10MHz, then 50 resource blocks can be determined. The noise power is the power when the remote device does not receive any signal. Since the unified standard is adopted for design and production, the noise power of each remote device is the same .

Further, the processing unit 62 is specifically configured to determine at least two preset division methods, and obtain the total communication capacity corresponding to all remote devices according to the at least two preset division methods and the detection information, and obtain the total communication capacity from the obtained total The maximum total communication capacity is determined in the communication capacity, and the number of corresponding cells is determined according to the preset division mode corresponding to the maximum total communication capacity.

Wherein, the maximum total communication capacity is the maximum value of all the total communication capacities.

For example, if the access device determines that there are 8 remote devices in the optical fiber distribution system, which are respectively recorded as remote device 1 to remote device 8, then it can be determined that the first preset division method is the division of the 8 remote devices For the same cell, it can also be determined that the second preset division method is to divide remote device 1 to remote device 3 into cell 1, divide remote device 4 to remote device 6 into cell 2, and divide remote device 7 into cell 2. and the remote device 8 are divided into cells 3, if it is determined according to the calculation that the total communication capacity under the second preset division method is the largest among the total communication capacity under all the preset division methods, then it can be divided according to the second preset The method determines that the number of corresponding cells is 3.

It should be noted that the maximum number of corresponding cells determined by the access device according to the preset division method may be preset according to information sources in advance.

For example, the signal source may be a BBU (Building Base band Unit, indoor baseband processing unit). A BBU baseband board supports up to three cells, and the preset division method divides all remote devices into three cells at most.

Further, the processing unit 62 is specifically configured to determine the corresponding terminal according to the detection information, and determine the total number of terminals.

Further, the processing unit 62 is also configured to, when it is determined that the received signal power is greater than the noise power, determine that there is a corresponding terminal, determine the maximum received signal power corresponding to the terminal, and determine the total number of terminals based on all the terminals.

Specifically, when the signal power of the resource block is greater than the noise power, the access device determines that there is a corresponding terminal, and the signal power of the resource block is the signal power of the terminal. The signal power of the block can determine all terminals and determine the total number of terminals.

For example, when the remote device detects the resource block, it can determine the signal power of the terminal according to the power of the signal carried by the resource block. After each remote device sends the detected information to the access device, if the access device determines that the If the signal power of the terminal is greater than the noise power, it is determined that there is a corresponding terminal in the resource block, and the access device can determine the total number of terminals by the amount of signal power greater than the noise power.

Furthermore, the detection information acquired by the access device includes the received signal power obtained by each remote device detecting the resource block, that is, the signal power of the terminal detected by each remote device. Since the signal sent by the terminal to the remote device is being transmitted Therefore, after determining the corresponding terminal according to the detection information, the access device determines the maximum value of the signal power of the terminal detected by each remote device, and then can determine the remote device closest to the terminal , the maximum value among the signal powers of the terminal detected by each remote device is the maximum received signal power corresponding to the terminal.

Further, the shown processing unit 62 is also used for, before determining the communication capacity corresponding to the m-th terminal through the formula TP _n =Blog ₂ (1+S _n ), if all the remote devices are divided into one cell, then According to the formula Determine the SINR corresponding to the mth terminal.

Among them, P _rm is the maximum received signal power corresponding to the mth terminal, and N _r is the noise power of the remote device.

It should be noted that when all remote devices are divided into at least two cells according to the preset division method, since the signals used by different cells may cause co-channel interference, when calculating the signal-to-interference-noise ratio corresponding to the terminal, it should be Consider the impact of interference signals from other cells.

If all the remote devices are divided into at least two cells, then according to the formula Determine the SINR corresponding to the mth terminal.

Wherein, P _rm is the maximum received signal power corresponding to the mth terminal, N _r is the noise power of the remote device, and _PI is the interference signal power received by the remote device.

Further, the processing unit 62 is specifically configured to, and in each preset division mode, determine the communication capacity corresponding to the mth terminal through the first formula, and determine the division of all remote devices into n by the second formula. The total communication capacity corresponding to each cell.

The first formula is: TP _n =Blog ₂ (1+S _n ).

Wherein, TP _m is the communication capacity corresponding to the m-th terminal, B is the channel bandwidth, and S _m is the signal-to-interference-noise ratio corresponding to the m-th terminal.

This second formula is:

Among them, Cn is the total communication capacity corresponding to the division of all remote devices into n cells, TP _m is the communication capacity of the mth remote device, N is the total number of resource blocks, and n is the cell corresponding to the preset division method The number of M is the total number of terminals.

It should be noted that, according to different preset division methods, the number of terminals sharing a resource block corresponding to a cell resource is also different, so the communication capacity corresponding to a terminal determined according to the first formula is the throughput of the terminal on a unit resource block The total communication capacity determined by the second formula is the total communication capacity of the optical fiber distribution system when all terminals are equally allocated all resource blocks.

Further, after the access device determines the maximum communication capacity and determines the number of cells according to the preset division method corresponding to the maximum communication capacity, it sends a signal request message including the number of cells to the information source.

For example, if it is determined that the number of cells is 3, a signal request message is sent to the source, where the signal request message includes the number of cells (3 in the embodiment of the present invention), and the source sends a signal request message to the access device There should be radio frequency signals from 3 cells.

Further, after receiving the signal request message, the information source provides radio frequency signals corresponding to the number of the cells, and the access device receives the radio frequency signals and sends the radio frequency signals to the remote devices corresponding to the cells.

By using the above access device, the access device receives the detection information sent by all the remote devices, determines the number of cells corresponding to all the remote devices according to the detection information, sends a signal request message to the source, and receives the source Send the radio frequency signal corresponding to the number of the cell, and send the radio frequency signal to the remote device of each cell. When the number of terminals in the optical fiber distribution system changes, the access device adjusts through the detection information and the preset division method The number of cells, and apply for radio frequency signals according to the number of cells to ensure that the remote device obtains sufficient communication capacity.

An embodiment of the present invention provides a remote device 70 in an optical fiber distribution system, as shown in FIG. 7 , including:

The acquiring unit 71 is configured to acquire detection information.

The sending unit 72 is configured to send the detection information obtained by the acquisition unit 71 to the access device, so that the access device determines the number of cells corresponding to all remote devices according to the detection information, and sends a signal request message to the source, The access device receives the radio frequency signal corresponding to the number of the cells sent by the information source, and sends the radio frequency signal to the remote device of each cell.

Wherein, the signal request message includes the number of the cell.

The acquiring unit 71 is also configured to receive the radio frequency signal sent by the access device.

Specifically, the access device sends radio frequency signals to the remote devices corresponding to the cells according to the preset division method, and the remote devices receive the radio frequency signals and transmit information with the terminal through the radio frequency signals.

Further, the detection information includes: received signal power and noise power of the remote device.

The obtaining unit 71 is specifically configured to detect resource blocks to obtain received signal power, and determine the noise power of the remote device.

Specifically, the received signal power is obtained by the remote device by detecting the resource block, which is used to carry the uplink signal sent by the terminal to the remote device, and the number of the resource blocks can be determined according to the channel bandwidth provided by the optical fiber distribution system , if the channel bandwidth is determined to be 10MHz, then 50 resource blocks can be determined. The noise power is the power when the remote device does not receive any signal. Since the unified standard is adopted for design and production, the noise power of each remote device is the same .

By using the above-mentioned remote device, the remote device sends detection information to the access device. When the number of terminals in the optical fiber distribution system changes, the access device adjusts the number of cells based on the detection information and the preset division method, and according to the The number of radio frequency signals is applied to ensure that the remote equipment obtains sufficient communication capacity.

An embodiment of the present invention provides a signal source 80, as shown in FIG. 8 , including:

The obtaining unit 81 is configured to receive the signal request message sent by the access device after the access device receives the detection information sent by all the remote devices and determines the number of cells corresponding to all the remote devices according to the detection information.

Wherein, the signal request message includes the number of the cell.

The sending unit 82 is configured to send radio frequency signals corresponding to the number of the cells to the access device, so that the access device sends the radio frequency signals to remote devices in each cell.

Specifically, the information source determines the number of cells according to the signal request message, and sends radio frequency signals corresponding to the number of cells to the access device.

For example, if the information source determines that the access device divides all remote devices into 3 cells according to the signal request message, the information source sends radio frequency signals corresponding to the 3 cells to the access device.

By using the above information source, the information source sends radio frequency signals according to the signal request message of the access device. When the number of terminals in the optical fiber distribution system changes, the access device adjusts the number of cells through the detection information and the preset division method, and Apply for radio frequency signals according to the number of cells to ensure that the remote device obtains sufficient communication capacity.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (12)

1. A method for signal transmission, characterized in that, comprising: The access device receives the detection information sent by all remote devices; Determine at least two preset division methods; Obtaining the total communication capacity corresponding to all remote devices according to the at least two preset division methods and the detection information; Determine the maximum total communication capacity from the obtained total total communication capacity, and determine the number of corresponding cells according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum total communication capacity is 1% of the total total communication capacity maximum value; sending a signal request message to a source, where the signal request message includes the number of cells; receiving radio frequency signals corresponding to the number of cells sent by the information source, and sending the radio frequency signals to the remote equipment of each cell. 2. The method according to claim 1, wherein the obtaining the total communication capacity corresponding to all remote devices according to the at least two preset division methods and the detection information includes: Determine the corresponding terminal according to the detection information, and determine the total number of terminals; In each preset division mode, the communication capacity corresponding to the mth terminal is determined through the first formula, and the total communication capacity corresponding to dividing all the remote devices into n cells is determined through the second formula; The first formula is: TP _m =Blog ₂ (1+S _m ); Wherein, TP _m is the communication capacity corresponding to the m-th terminal, B is the channel bandwidth, and S _m is the signal-to-interference-noise ratio corresponding to the m-th terminal; The second formula is: $\mathrm{<span\; class="notranslate">\; C</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; ,</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ;</span>$ $\begin{array}{c}\mathrm{<span\; class="notranslate">\; C</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span>\\ <span\; class="notranslate">\; +</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; ,</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; ></span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; ,</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ;</span>\end{array}$ Wherein, Cn is the total communication capacity corresponding to when all the remote devices are divided into n cells, TP _m is the communication capacity of the mth remote device, N is the total number of resource blocks, and n is the number corresponding to the preset division method The number of cells, M is the total number of terminals. 3. The method according to claim 2, wherein the detection information includes: received signal power, noise power of the remote device; The determining the total number of terminals according to the detection information includes: When it is determined that the received signal power is greater than the noise power, determine that there is a corresponding terminal, and determine the maximum received signal power corresponding to the terminal; determining said total number of terminals based on all said terminals; Before determining the communication capacity corresponding to the mth terminal through the formula TP _m =Blog ₂ (1+S _m ), the method further includes: If all the remote devices are divided into one cell, then according to the formula determining the SINR corresponding to the mth terminal; Wherein, P _rm is the maximum received signal power corresponding to the mth terminal, and N _r is the noise power of the remote device; If all the remote devices are divided into at least two cells, then according to the formula determining the SINR corresponding to the mth terminal; Wherein, P _rm is the maximum received signal power corresponding to the mth terminal, N _r is the noise power of the remote device, and _PI is the interference signal power received by the remote device. 4. A method for signal transmission, comprising: The remote device obtains detection information; sending the detection information to the access device, so that the access device determines at least two preset division methods, and obtains the total communication corresponding to all remote devices according to the at least two preset division methods and the detection information Capacity, determine the maximum total communication capacity from the obtained total total communication capacity, determine the number of corresponding cells according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum total communication capacity is the total communication capacity of the total capacity, and send a signal request message to a source, where the signal request message includes the number of cells, and the access device receives radio frequency signals corresponding to the number of cells sent by the source, And sending the radio frequency signal to the remote equipment of each cell; Receive a radio frequency signal sent by the access device. 5. The method according to claim 4, wherein the detection information includes: received signal power and noise power of the remote device; The acquisition of detection information by the remote device includes: Detecting the resource block to obtain received signal power; A noise power of the remote device is determined. 6. A method for signal transmission, comprising: After the access device receives the detection information sent by all the remote devices and determines the number of cells corresponding to all the remote devices according to the detection information, the source receives the signal request message sent by the access device, wherein the the signal request message includes the number of cells; Sending radio frequency signals corresponding to the number of cells to the access device, so that the access device sends the radio frequency signals to remote devices in each cell; The determining the number of cells corresponding to all the remote devices according to the detection information includes: determining at least two preset division methods; obtaining all remote devices according to the at least two preset division methods and the detection information Corresponding total communication capacity; determine the maximum total communication capacity from the obtained total total communication capacity, and determine the number of corresponding cells according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum total communication capacity is the The maximum value of the total total communication capacity described above. 7. An access device in an optical fiber distribution system, comprising: an acquisition unit, configured to receive detection information sent by all remote devices; A processing unit, configured to determine at least two preset division methods, obtain the total communication capacity corresponding to all remote devices according to the at least two preset division methods and the detection information, and determine the maximum communication capacity from the obtained total communication capacity Total communication capacity, determining the number of corresponding cells according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum total communication capacity is the maximum value of all total communication capacities; A sending unit, configured to send a signal request message to a source, where the signal request message includes the number of cells; The obtaining unit is further configured to receive radio frequency signals corresponding to the number of cells sent by the information source; The sending unit is further configured to send the radio frequency signal obtained by the acquiring unit to the remote equipment of each cell. 8. The access device according to claim 7, wherein the processing unit is specifically configured to determine the corresponding terminal according to the detection information, and determine the total number of terminals, and in each preset division mode, Determining the communication capacity corresponding to the mth terminal by using the first formula, and determining the total communication capacity corresponding to dividing all the remote devices into n cells by using the second formula; The first formula is: TP _m =Blog ₂ (1+S _m ); Wherein, TP _m is the communication capacity corresponding to the m-th terminal, B is the channel bandwidth, and S _m is the signal-to-interference-noise ratio corresponding to the m-th terminal; The second formula is: $\mathrm{<span\; class="notranslate">\; C</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; ,</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ;</span>$ $\begin{array}{c}\mathrm{<span\; class="notranslate">\; C</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span>\\ <span\; class="notranslate">\; +</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; ...</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; TP</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; N</span>}}{\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; ,</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; ></span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; ,</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ;</span>\end{array}$ Wherein, Cn is the total communication capacity corresponding to when all the remote devices are divided into n cells, TP _m is the communication capacity of the mth remote device, N is the total number of resource blocks, and n is the number corresponding to the preset division method The number of cells, M is the total number of terminals. 9. The access device according to claim 8, wherein the detection information includes: received signal power, noise power of the remote device; The processing unit is further configured to, when determining that the received signal power is greater than the noise power, determine that there is a corresponding terminal, determine the maximum received signal power corresponding to the terminal, and determine the terminal according to all the terminals total; Before the communication capacity corresponding to the mth terminal is determined by the formula TP _m =Blog ₂ (1+S _m ), if all the remote devices are divided into one cell, then according to the formula determining the SINR corresponding to the mth terminal; Wherein, P _rm is the maximum received signal power corresponding to the mth terminal, and N _r is the noise power of the remote device; If all the remote devices are divided into at least two cells, then according to the formula determining the SINR corresponding to the mth terminal; Wherein, P _rm is the maximum received signal power corresponding to the mth terminal, N _r is the noise power of the remote device, and _PI is the interference signal power received by the remote device. 10. A remote device in an optical fiber distribution system, characterized in that it comprises: an acquisition unit, configured to acquire detection information; A sending unit, configured to send the detection information obtained by the acquisition unit to the access device, so that the access device determines at least two preset division methods, and according to the at least two preset division methods and the detection information Obtain the total communication capacity corresponding to all remote devices, determine the maximum total communication capacity from the obtained total total communication capacity, and determine the number of corresponding cells according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum The total communication capacity is the maximum value of the total communication capacity, and a signal request message is sent to the information source, wherein the signal request message includes the number of the cells, and the access device receives the corresponding information sent by the information source radio frequency signals of the number of the cells, and send the radio frequency signals to the remote equipment of each cell; The obtaining unit is further configured to receive a radio frequency signal sent by the access device. 11. The remote device according to claim 10, wherein the detection information includes: received signal power and noise power of the remote device; The obtaining unit is specifically configured to detect resource blocks to obtain received signal power, and determine the noise power of the remote device. 12. A source of information, characterized in that it comprises: The acquisition unit is configured to receive the signal request message sent by the access device after the access device receives the detection information sent by all the remote devices and determines the number of cells corresponding to all the remote devices according to the detection information , wherein the signal request message includes the number of cells; a sending unit, configured to send radio frequency signals corresponding to the number of cells to the access device, so that the access device sends the radio frequency signals to remote devices in each cell; The determining the number of cells corresponding to all the remote devices according to the detection information includes: determining at least two preset division methods; obtaining all remote devices according to the at least two preset division methods and the detection information Corresponding total communication capacity; determine the maximum total communication capacity from the obtained total total communication capacity, and determine the number of corresponding cells according to the preset division method corresponding to the maximum total communication capacity, wherein the maximum total communication capacity is the The maximum value of the total total communication capacity described above.