Carrier Configuration Method, Device, Distributed Antenna System, and Storage Medium

Abstract

The present disclosure relates to a carrier configuration method, apparatus, distributed antenna system, and storage medium. The method is applied to a remote end of the distributed antenna system, and the remote end includes multiple optical ports. In the solution of the present disclosure, at least one optical port is used to receive a carrier and corresponding carrier configuration information sent by a proximal end of the distributed antenna system. The carrier configuration information includes an antenna carrier identifier, a carrier bandwidth, a frequency band, a center frequency point, and a channel identifier; data frames corresponding to the antenna carrier identifier are obtained; a target digital up-conversion module is determined according to the carrier bandwidth and a preset digital up-conversion module design table; the carrier is processed based on the target digital up-conversion module, the center frequency point, and the data frames; and the processed carrier is mapped to a target frequency band antenna corresponding to the frequency band and the channel identifier. The transmission of multiple optical fibers enables the number and bandwidth of carriers transmitted by each optical fiber to be flexibly configured, realizes the routing of carriers in different frequency bands to corresponding antennas, and realizes the transmission of multi-optical port multi-carrier signals.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and more specifically, to a multi-fiber mapping (MAP) routing configuration method for a Distributed Antenna System (DAS) communication device, and particularly to a carrier configuration method, apparatus, distributed antenna system, and storage medium. Background Art

[0002] In a DAS device, the Remote Antenna Unit (RAU) involves multiple frequency bands, including 600 (35 MHz), 700L & 700U (40 MHz), 800 & 850 (30 MHz), 1900 (65 MHz), EAWS (90 MHz), WCS (10 MHz), 2500 (120 MHz). Its total bandwidth is relatively large. The proximal end (DRU) transmits all frequency bands to the distal end through a single optical fiber, which cannot meet the transmission bandwidth requirements of multiple frequency bands. Summary of the Invention

[0003] To solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a carrier configuration method, apparatus, distributed antenna system, and storage medium.

[0004] In a first aspect, the present disclosure provides a carrier configuration method, which is applied to the distal end of a distributed antenna system. The distal end includes multiple optical ports. The method includes:

[0005] Receiving, through at least one optical port, carriers and corresponding carrier configuration information sent by the proximal end of the distributed antenna system. The carrier configuration information includes an antenna carrier identifier, a carrier bandwidth, a frequency band, a center frequency point, and a channel identifier;

[0006] Obtaining a data frame corresponding to the antenna carrier identifier; and determining a target digital up-conversion module according to the carrier bandwidth and a preset digital up-conversion module design table;

[0007] Processing the carrier based on the target digital up-conversion module, the center frequency point, and the data frame;

[0008] Mapping the processed carrier to a target frequency band antenna corresponding to the frequency band and the channel identifier.

[0009] In a second aspect, the present disclosure provides a carrier configuration apparatus, which is applied to the distal end of a distributed antenna system. The distal end includes multiple optical ports. The apparatus includes:

[0010] A carrier receiving module, configured to receive a carrier and corresponding carrier configuration information sent from the proximal end of the distributed antenna system through at least one optical port, where the carrier configuration information includes an antenna carrier identifier, a carrier bandwidth, a frequency band, a center frequency point, and a channel identifier;

[0011] A data frame obtaining module, configured to obtain a data frame corresponding to the antenna carrier identifier;

[0012] A determining module, configured to determine a target digital up-conversion module according to the carrier bandwidth and a preset digital up-conversion module design table;

[0013] A processing module, configured to process the carrier based on the target digital up-conversion module, the center frequency point, and the data frame;

[0014] A mapping module, configured to map the processed carrier to a target frequency band antenna corresponding to the frequency band and the channel identifier.

[0015] In a third aspect, the present disclosure provides a distributed antenna system, including: a proximal end and a distal end, where the proximal end and the distal end are connected by multiple optical fibers; wherein,

[0016] The proximal end sends a carrier and corresponding carrier configuration information to the distal end;

[0017] The distal end includes multiple optical ports, and a processor on the distal end realizes the carrier configuration method as described in the first aspect by executing computer-executable instructions stored in a memory.

[0018] In a fourth aspect, the present disclosure provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, the carrier configuration method as described in the first aspect is realized.

[0019] The technical solutions provided in the embodiments of the present disclosure have the following advantages compared with the prior art:

[0020] Receive the carrier and the corresponding carrier configuration information sent from the proximal end of the distributed antenna system through at least one optical port. The carrier configuration information includes an antenna carrier identifier, a carrier bandwidth, a frequency band, a center frequency, and a channel identifier. Obtain the data frame corresponding to the antenna carrier identifier, and determine the target digital up-conversion module according to the carrier bandwidth and a preset digital up-conversion module design table. Then, based on the target digital up-conversion module, the center frequency, and the data frame, process the carrier, and map the processed carrier to the target frequency band antenna corresponding to the frequency band and the channel identifier. By adopting the above technical solution, multiple optical ports are arranged at the distal end to receive the carriers sent from the proximal end. The transmission of multiple optical fibers enables the number and bandwidth of the carriers transmitted by each optical fiber to be flexibly configured. Moreover, by receiving the carrier configuration information, the processed carriers are mapped and routed to the target frequency band antennas corresponding to the frequency band and the channel identifier, realizing the routing of carriers in different frequency bands to the corresponding antennas and achieving the transmission of multi-optical-port multi-carrier signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are incorporated herein and form a part of this specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or in the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a block diagram of a distributed antenna system provided by an embodiment of the present disclosure;

[0024] Figure 2 It is a schematic flowchart of a carrier configuration method provided by an embodiment of the present disclosure;

[0025] Figure 3 It is a simple diagram of multi-band multi-optical-port carrier routing provided by an embodiment of the present disclosure;

[0026] Figure 4 It is a schematic structural diagram of a carrier configuration device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to more clearly understand the above objects, features, and advantages of the present disclosure, the following will further describe the solutions of the present disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0028] In the following description, numerous specific details are set forth to provide a thorough understanding of the present disclosure. However, the present disclosure may be practiced in other ways different from those described herein. Obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all the embodiments.

[0029] In view of the problem of insufficient bandwidth in the multi-band multi-carrier single-fiber transmission of DAS devices, an embodiment of the present disclosure provides a distributed antenna system, as Figure 1 shown, which includes a proximal end and a distal end, and the proximal end and the distal end are connected by multiple optical fibers; the proximal end sends down carriers and corresponding carrier configuration information to the distal end; the distal end includes multiple optical ports, and the processor on the distal end realizes the following carrier configuration method by executing computer-execution instructions stored in the memory.

[0030] A carrier configuration method provided by an embodiment of the present disclosure can be applied to the distal end of the above-mentioned distributed antenna system. Among them, the distal end includes multiple optical ports, and the proximal end and the distal end of the distributed antenna system are connected by multiple optical fibers to flexibly configure carriers of different frequency bands to different optical ports, and transmit the carrier signals belonging to the optical port through different optical ports. At the same time, the carrier signals of different optical ports are routed to the corresponding MIMO (Multi Input Multi Output) antennas, specifically antennas such as 2T2R, 2T4R, and 4T4R, to realize multi-band multi-carrier transmission through multiple optical fibers.

[0031] Exemplarily, Figure 1 is a block diagram of a distributed antenna system provided by an embodiment of the present disclosure. It can be understood that Figure 1 only the example of connecting the proximal end and the distal end by 4 optical fibers is used to explain the present disclosure, and it cannot be used as a limitation to the present disclosure. In subsequent embodiments, 4 optical fibers are continued to be used as an example to explain the present disclosure. As Figure 1 shown, the proximal end (DRU) can be connected to multiple distal ends (DRAU) by 4 optical fibers. Correspondingly, each distal end includes 4 optical ports, and each optical port has a corresponding optical port number (OP1 to OP4). Figure 1 In, each optical port of the distal end has a unique MAC (Media Access Control) address and IP (Internet Protocol) address. The TCP (Transmission Control Protocol) of each optical port listens to the same port number. When the optical port 1 receives the carrier configuration information, it is considered that the carrier belongs to the optical port 1, and the transmission signal is transmitted through the optical port 1. As Figure 1As shown, the proximal end (DRU) is connected to the distal end (DRAU) through multiple (4) optical fibers. The transmission rate of each optical fiber is 12.5G, the maximum transmission bandwidth is 95MHz, and it supports channels in 7 different frequency bands, namely 600MHz, 700L&700UMHz, 800&850MHz, PCS (1900MHz), EAWS (2100MHz), WCS (2300MHz) and 2.5G. The maximum number of supported carriers is 64, including 32 SISO (Single-Input Single-Output) carriers and 32 MIMO (Multiple-Input Multiple-Output) carriers, that is, 32 2T2R carriers.

[0032] Figure 2 FIG. is a schematic flowchart of a carrier configuration method provided by an embodiment of the present disclosure. The carrier configuration method is applied to the distal end of a distributed antenna system. The distal end includes multiple optical ports. The carrier configuration method can be executed by a carrier configuration device provided by an embodiment of the present disclosure. The carrier configuration device can be implemented by software and / or hardware and can be integrated on the distributed antenna system provided by an embodiment of the present disclosure.

[0033] As Figure 2 shown, the carrier configuration method may include the following steps:

[0034] Step 101, receive, through at least one optical port, carriers and corresponding carrier configuration information sent by the proximal end of the distributed antenna system. The carrier configuration information includes an antenna carrier identifier, a carrier bandwidth, a frequency band, a center frequency point, and a channel identifier.

[0035] In an embodiment of the present disclosure, the proximal end and the distal end of the distributed antenna system are connected through multiple (e.g., 4) optical fibers. Each optical fiber accesses an optical port at the distal end. The proximal end sends carrier signals and corresponding carrier configuration information of each carrier signal to the distal end through at least one of the multiple optical fibers. The carrier configuration information may include, but is not limited to, an antenna carrier (AntennaxCarrier, abbreviated as AxC) identifier, a carrier bandwidth, a frequency band, a center frequency point, and a channel identifier.

[0036] Among them, the carrier bandwidth includes 5MHz, 10MHz, 15MHz, 20MHz, 40MHz, and 60MHz; the frequency bands include 600MHz, 700L&700UMHz, 800&850MHz, PCS (1900MHz), EAWS (2100MHz), WCS (2300MHz), and 2.5G; the channel identifier includes SISO and MIMO.

[0037] Step 102, obtain a data frame corresponding to the antenna carrier identifier.

[0038] In the DAS device according to the embodiments of the present disclosure, each optical fiber provides 0 to 76 data frames of 12 2T2R carriers. In the embodiments of the present disclosure, according to the antenna carrier identifier configured from the proximal end, the corresponding data frame can be selected. For example, in the carrier configuration information received by a certain optical port, if the antenna carrier identifier is 2, the data frame with the identifier 2 is obtained, and the data frame is used for frame decoding.

[0039] Step 103: Determine the target digital up-conversion module according to the carrier bandwidth and the preset digital up-conversion module design table.

[0040] Among them, the digital up-conversion (Digital Up Converter, abbreviated as DUC) module design table can be preset and stored in the memory of the DAS device.

[0041] Exemplarily, the preset digital up-conversion module design table is shown in Table 1.

[0042] Table 1

[0043]

[0044] As shown in Table 1, the DUC with a bandwidth of 20 MHz is divided into 4 modules (DUC module 0, DUC module 1, DUC module 2, and DUC module 3) and a 60 MHz NR60 module.

[0045] Among them, for DUC module 0, a single DUC module 0 only supports one carrier with a 20 MHz bandwidth, and the number of DUC module 0 includes 5 such modules of 2T2R, that is, 5 DUC module 0s support 5 2T2R carriers with a 20 MHz bandwidth.

[0046] For DUC module 1, a single DUC module 1 supports 1 carrier with a 20 MHz bandwidth or 2 carriers with a 10 MHz bandwidth, and the number of DUC module 1 includes 4 such modules of 2T2R, that is, 4 DUC module 1s support 4 2T2R carriers with a 20 MHz bandwidth or 8 2T2R carriers with a 10 MHz bandwidth.

[0047] For DUC module 2, a single DUC module 2 supports 1 carrier with a 20 MHz bandwidth or 2 carriers with a 10 MHz bandwidth or 4 carriers with a 5 MHz bandwidth, and the number of DUC module 2 includes 2 such modules of 2T2R, that is, 2 DUC module 2s support 2 2T2R carriers with a 20 MHz bandwidth or 4 2T2R carriers with a 10 MHz bandwidth or 8 2T2R carriers with a 5 MHz bandwidth.

[0048] For the DUC module 3, a single DUC module 3 supports 1 carrier of 20 MHz or 2 carriers of 10 MHz or 1 carrier of 15 + 5 MHz. The number of DUC modules 3 includes 4 such modules of 2T2R, that is, 4 DUC modules 3 support 4 carriers of 20 MHz of 2T2R or 8 carriers of 10 MHz of 2T2R or 4 carriers of 15 MHz and 4 carriers of 5 MHz.

[0049] For the DUC NR60 module, it only includes 1 NR60 or 1 NR40 carrier.

[0050] In the embodiments of the present disclosure, according to the carrier bandwidth recorded in the carrier configuration information, by querying the preset digital up-conversion module design table, the target DUC module can be determined.

[0051] Table 2 is a DUC module selection table, showing the DUC modules that can be selected for carriers with different bandwidths.

[0052] Table 2

[0053]

[0054] As shown in Table 2, for a carrier with a bandwidth of 5 MHz and a sampling rate of 7.68 Msps, the DUC modules that can be selected are DUC module 2 or DUC module 3. For a carrier with a bandwidth of 10 MHz and a sampling rate of 15.36 Msps, the DUC modules that can be selected are DUC module 1 or DUC module 2 or DUC module 3. For a carrier with a bandwidth of 15 MHz and a sampling rate of 23.04 Msps, the only DUC module that can be selected is DUC module 3. For a carrier with a bandwidth of 20 MHz and a sampling rate of 30.72 Msps, the DUC modules that can be selected are DUC modules 0 to DUC module 3. For a carrier with a bandwidth of 40 MHz or 60 MHz, the only DUC module that can be selected is the DUC NR60 module.

[0055] For example, assuming that the bandwidth of a certain carrier is 5 MHz, then according to this bandwidth, by querying the digital up-conversion module design table shown in Table 1 or the DUC module selection table shown in Table 2, it can be determined that DUC module 2 and DUC module 3 are available for selection, and any one of DUC module 2 or DUC module 3 can be determined as the target DUC module.

[0056] Step 104, process the carrier based on the target digital up-conversion module, center frequency point, and data frame.

[0057] In the embodiments of the present disclosure, after determining the target digital up-conversion module corresponding to each carrier, the carrier can be processed based on the determined target digital up-conversion module, the center frequency point of the carrier, and the determined data frame. Among them, processing the carrier includes but is not limited to frequency conversion, sampling, frame decoding, etc.

[0058] It should be noted that the processing of the carrier can be achieved by conventional technical means in the art, which does not belong to the inventive point of the present disclosure, and the present disclosure will not elaborate on this.

[0059] Step 105: Map the processed carrier to the target frequency band antenna corresponding to the frequency band and channel identifier.

[0060] In the embodiment of the present disclosure, the remote end of the distributed antenna system includes one 2T2R channel of 600 MHz, one 2T2R channel of 700 MHz, one 2T2R channel of 800 & 850 MHz, one 2T2R channel of PCS (1900 MHz), one 2T2R channel of EAWS (2100 MHz), one 2T2R channel of WCS (2300 MHz), and one 2T2R channel of 2.5 GHz, a total of 7 2T2R channels with different frequency bands. For the processed carrier, the remote end opens or closes the switch between the carrier and the channel corresponding to the frequency band according to the channel identifier and frequency band of the carrier, that is, which SISO or MIMO channel of which frequency band the carrier needs to transmit signals through, so that the carrier corresponding to the frequency band is transmitted through the corresponding channel of the corresponding frequency band, realizing the routing of carriers with different optical ports and different bandwidths to different frequency band channels, achieving the routing of carriers with different frequency bands to the corresponding 2T2R antennas, thereby realizing the carrier configuration of multiple optical ports and multiple carriers and realizing the transmission of multiple optical port and multiple carrier signals.

[0061] For example, assuming that the frequency band of a certain carrier configured by the proximal end is 600 MHz and the channel identifier is SISO, it can be determined that the target frequency band antenna corresponding to the carrier is the SISO channel of the 600 MHz frequency band. Furthermore, after processing the carrier, the carrier is mapped, and the foreground is switched to the SISO channel of 600 MHz for transmission, that is, the switch of the SISO channel within the 600 MHz frequency band is turned on and the MIMO switch within this frequency band is turned off, so that the processed carrier is transmitted through the SISO channel of 600 MHz.

[0062] Furthermore, in an alternative embodiment of the present disclosure, before mapping the carrier to the corresponding target frequency band antenna, the number of carriers to be mapped to each frequency band can be verified to ensure that the number of carriers mapped to each frequency band does not exceed the maximum carrier number threshold corresponding to each frequency band.

[0063] Exemplarily, Table 3 is the carrier planning table for each frequency band provided by the embodiment of the present disclosure, showing the maximum number of carriers with different bandwidths supported by each frequency band, as well as the maximum total number of carriers and the maximum total bandwidth supported by each frequency band.

[0064] Table 3

[0065]

[0066] As shown in Table 3, the 600 MHz frequency band supports up to 4 SISO and 4 MIMO carriers, the 700 MHz frequency band supports up to 4 SISO and 4 MIMO carriers, the 800 & 850 MHz frequency band supports up to 4 SISO and 4 MIMO carriers, the PCS (1900 MHz) frequency band supports up to 8 SISO and 8 MIMO carriers, the EAWS (20100 MHz) frequency band supports up to 8 SISO and 8 MIMO carriers, the WCS (2300 MHz) frequency band supports up to 1 SISO and 1 MIMO carrier, the 2500 MHz frequency band supports up to 6 SISO and 6 MIMO carriers, and the 2500 MHz also supports 1 SISO and MIMO carrier each for independent NR40 and NR60. Therefore, when mapping carrier signals to antennas of each frequency band, the number of carriers mapped by the antennas of each frequency band should meet the above carrier planning requirements for each frequency band.

[0067] The carrier configuration method provided in this embodiment receives, through at least one optical port, carriers and corresponding carrier configuration information sent from the proximal end of the distributed antenna system. The carrier configuration information includes antenna carrier identifier, carrier bandwidth, frequency band, center frequency point, and channel identifier. It obtains a data frame corresponding to the antenna carrier identifier, and determines a target digital upconversion module according to the carrier bandwidth and a preset digital upconversion module design table. Then, based on the target digital upconversion module, the center frequency point, and the data frame, it processes the carrier and maps the processed carrier to the target frequency band antenna corresponding to the frequency band and the channel identifier. By adopting the above technical solution, by setting multiple optical ports at the distal end to receive carriers sent from the proximal end, the transmission of multiple optical fibers enables the number and bandwidth of carriers transmitted by each optical fiber to be flexibly configured. Moreover, by receiving the carrier configuration information, the processed carriers are mapped and routed to the target frequency band antennas corresponding to the frequency band and the channel identifier, realizing the routing of carriers of different frequency bands to the corresponding antennas and achieving the transmission of multi-optical-port multi-carrier signals.

[0068] In an alternative embodiment, determining the target digital upconversion module according to the carrier bandwidth and a preset digital upconversion module design table may include:

[0069] Query the preset digital upconversion module design table according to the carrier bandwidth to determine at least one candidate digital upconversion module that supports the carrier bandwidth;

[0070] Determine the target digital upconversion module from at least one candidate digital upconversion module according to the preset digital upconversion module selection strategy.

[0071] Among them, the digital up-conversion module selection strategy can be preset. For example, the digital up-conversion module selection strategy can be set to include but not limited to preferentially selecting a DUC module that only supports the corresponding carrier bandwidth, preferentially selecting a DUC module that individually supports the corresponding carrier bandwidth, and so on.

[0072] In the embodiments of the present disclosure, when selecting the target DUC module corresponding to the carrier bandwidth, the preset digital up-conversion module design table can be queried according to the carrier bandwidth first, and all candidate DUC modules that support the carrier bandwidth can be determined from each DUC module, and then according to the preset digital up-conversion module selection strategy, the target DUC module can be determined from all candidate DUC modules corresponding to the carrier bandwidth.

[0073] Exemplarily, for carriers with different bandwidths, by querying Table 1, all candidate DUC modules corresponding to each carrier can be determined, as shown in Table 2; and then according to the preset digital up-conversion module selection strategy, the target DUC module corresponding to each carrier bandwidth can be determined from the candidate DUC modules corresponding to each carrier bandwidth.

[0074] For example, the digital up-conversion module selection strategy can be set as follows:

[0075] When the carrier bandwidth is 20 MHz, the candidate DUC modules that can be selected are DUC module 0 to DUC module 3, and DUC module 0 is preferentially selected as the target DUC module;

[0076] When there is a 15 MHz bandwidth in the carrier, DUC module 3 that only supports 15 MHz is preferentially selected;

[0077] When the carrier bandwidth is 10 MHz, the candidate DUC modules that can be selected are DUC module 1 to DUC module 3, and DUC module 1 is preferentially selected as the target DUC module;

[0078] When the carrier bandwidth is 5 MHz, the candidate DUC modules that can be selected are DUC module 2 and DUC module 3, and DUC module 2 is preferentially selected as the target DUC module.

[0079] It can be understood that the finally determined target DUC module should be available, that is, the number of modules of the target DUC module has not been exhausted. For example, when the carrier bandwidth is 20 MHz, according to the preset digital up-conversion module selection strategy, DUC module 0 is preferentially selected as the target DUC module. Since the number of DUC modules is 5, if all these 5 DUC modules have been occupied, then DUC module 0 cannot be selected as the target DUC module corresponding to 20 MHz, and as a second choice, DUC module 1 is selected as the target DUC module.

[0080] In an alternative embodiment of the present disclosure, each optical port at the distal end corresponds to its own optical port number, and each optical port is assigned a different IP address through a Virtual Local Area Network (VLAN) ID number. The optical port number corresponding to each optical port is associated with the IP address corresponding to the optical port. Thus, in this embodiment, at least one optical port is used to receive the carrier wave and the corresponding carrier configuration information sent from the proximal end of the distributed antenna system, including:

[0081] Obtain the carrier wave and the corresponding carrier configuration information sent from the proximal end through the IP address associated with at least one optical port.

[0082] In the embodiment of the present disclosure, the proximal end configures the carrier wave for the IP address corresponding to each optical port at the distal end, and the IP address is bound to the optical port number of each optical port. Thus, the distal end can determine the optical port for receiving the carrier wave according to the IP address of the obtained carrier wave.

[0083] Further, in an alternative embodiment of the present disclosure, after obtaining the carrier wave and the corresponding carrier configuration information sent from the proximal end through the IP address associated with at least one optical port, the distal end can query the preset corresponding relationship between the IP address and the optical port number to determine the target optical port number corresponding to the IP address of the obtained carrier wave and the corresponding carrier configuration information; furthermore, store the target optical port number and the carrier wave in a target mapping (Map) packet, and the state of the target mapping packet is an inactive state.

[0084] Among them, the corresponding relationship between the IP address and the optical port number can be preset and stored in the memory at the distal end. For example, when assigning IP addresses to each optical port at the distal end, the corresponding relationship between the optical port number of each optical port and the IP address of each optical port can be stored.

[0085] In the embodiment of the present disclosure, for the carrier wave and the carrier configuration information received through each IP address, according to the preset corresponding relationship between the IP address and the optical port number, the target optical port number corresponding to each IP address for receiving the carrier wave can be determined, and then the target optical port number and the carrier wave received through the IP address associated with the target optical port number are bound and stored in the target Map packet.

[0086] Among them, the target Map packet is an unused (with an inactive state) Map packet among multiple pre-created Map packets. Initially, one of the multiple Map packets is defaulted as the target Map packet, and the state of this Map packet is set to an inactive state.

[0087] Since there are a large number of carriers involved, involving 64 carriers, a single carrier cannot be modified in the data frame, DUC selection, and channel selection, otherwise the entire resource will be reallocated, which will cause the addition, deletion, or modification of carrier parameters to affect carriers in other frequency bands. In order to facilitate the modification of carrier parameters, in the embodiment of the present disclosure, the carrier configuration adopted is to manage the carrier by the optical port, and select the data group, DUC module, and channel by switching the Map group.

[0088] Specifically, each optical port at the remote end is assigned a different IP address, and the IP of each optical port is bound to the optical port number. When a certain IP obtains the carrier configured by the near end (when the near end configures the carrier, the carrier of a certain optical port is configured at one time), the IP is converted into the corresponding optical port number, and the carrier is saved in an unused Map group. Take the Map group including Map group 1 and Map group 2 as an example. If the current Active Map group is Map group 1, that is, the state of Map group 1 is activated, the received optical port carrier is saved to Map group 2, and the state of Map group 2 is inactive; if the current Active Map group is Map group 2, that is, the state of Map group 2 is activated, the received optical port carrier is saved to Map group 1, and the state of Map group 1 is inactive. After the near end sends the carrier configuration information of all optical ports, it sends a Map switching command, and the remote end switches the Active Map group. If the current Active Map group is group 1, Map group 1 is changed to Inactive, and Map group 2 is changed to Active. Otherwise, change Map group 1 to Active and Map group 2 to Inactive.

[0089] Since the 64 carrier resources are shared by multiple optical ports, the order of optical port configuration is different, or the carrier parameters of a certain optical port are modified before the Map group is switched, the entire Inactive Map group (such as Map group 1 or Map group 2 mentioned above) needs to be arranged and combined to reallocate the carrier resources, but it will not affect the carrier resource allocation of the Active Map group (such as Map group 2 or Map group 1 mentioned above).

[0090] In an optional implementation of the present disclosure, a carrier index value may be configured in an FPGA (Field Programmable Gate Array) register, where the carrier index value includes an optical port number of a received carrier and a label of a target digital up-conversion module; accordingly, based on the target digital up-conversion module, the center frequency point and the data frame, the carrier is processed, including:

[0091] In response to the Map switching instruction sent by the proximal end, switch the state of the target mapping group to the active state;

[0092] Obtain the target carrier corresponding to the optical port number in the carrier index value from the target mapping group;

[0093] Process the target carrier according to the target digital up-conversion module corresponding to the label of the target digital up-conversion module in the carrier index value, the center frequency point of the target carrier, and the data frame.

[0094] In the embodiments of the present disclosure, for each received carrier, a carrier index value can be calculated according to the transmission optical port number corresponding to each carrier (such as Figure 1 OP1 to OP4 shown in), the data frame size (0 to 76), and the determined target DUC module according to certain rules, and the carrier index value is configured into the corresponding FPGA register. When the distal end receives the Map switching instruction sent by the proximal end, in response to this instruction, the distal end switches the state of the target Map group in the inactive state to the active state, so as to be able to obtain the target carrier corresponding to the optical port number in the carrier index value from the target Map group, and then process the target carrier according to the target digital up-conversion module corresponding to the label of the target digital up-conversion module in the carrier index value, the center frequency point of the target carrier, and the data frame. The carrier index value binds the optical port number for carrier transmission, the starting position of the carrier in the data frame, and the selected target digital up-converter, thus achieving the routing control of the sampling and digital up-conversion of the carrier signals transmitted by different optical ports by the FPGA.

[0095] In an alternative embodiment of the present disclosure, the antenna carrier identifier configured by the proximal end can also be verified using the selected data frame. Thus, the method further includes: verifying the antenna carrier identifier in the carrier configuration information according to the data frame interval rule between carriers with different bandwidths.

[0096] Among them, the data frame interval rule for different bandwidths can be preset.

[0097] In the embodiments of the present disclosure, each optical fiber provides 0 to 76 data frames of 12 2T2R carriers. For the carriers on the same optical fiber, the data frame interval between each carrier with a bandwidth of 5 MHz is 2, the data frame interval between each carrier with a bandwidth of 10 MHz is 4, the data frame interval between each carrier with a bandwidth of 15 MHz is 6, the data frame interval between each carrier with a bandwidth of 20 MHz is 8, the data frame interval between each carrier with a bandwidth of 40 MHz is 16, and the data frame interval between each carrier with a bandwidth of 60 MHz is 24. After obtaining the corresponding data frames according to the antenna carrier identifier configured from the proximal end, the antenna carrier identifier configured from the proximal end can be verified according to the above data frame interval rule. Only when it is correct can the subsequent process continue. When it is incorrect, an error message can be fed back to the proximal end.

[0098] In the embodiments of the present disclosure, by verifying the antenna carrier identifier in the carrier configuration information according to the data frame interval rule between carriers with different bandwidths, it is possible to verify whether the carriers configured from the proximal end are accurate, thereby ensuring the accuracy of the carrier configuration.

[0099] In an alternative embodiment of the present disclosure, it is also possible to verify whether the carriers configured from the proximal end meet the carrier distribution requirements corresponding to the transmission link. Only when the carrier distribution requirements are met can the subsequent process continue. Thus, in this embodiment, the method may further include: determining that the number of carriers with each bandwidth received through at least one optical port meets the preset carrier distribution requirements;

[0100] Wherein, the carrier distribution requirements include: the number of carriers with different bandwidths does not exceed the first carrier number threshold corresponding to the bandwidth, the total number of carriers with all bandwidths does not exceed the first total carrier number threshold, and the total bandwidth of all carriers does not exceed the first bandwidth threshold.

[0101] Exemplarily, Table 4 is the carrier distribution table corresponding to the transmission link, showing the maximum number of carriers, the maximum total number of carriers, and the maximum total bandwidth of each bandwidth in all transmission links (4 optical fibers, denoted as Link1 to Link4) under the SISO channel and the MIMO channel.

[0102] Table 4

[0103]

[0104] As shown in Table 4, taking the SISO channel as an example, the transmission links Link1 to 4 support a maximum of 32 carriers with 2 transmit and 2 receive antennas. Among them, the maximum number of carriers supporting 5 MHz carriers is 10, the maximum number of carriers supporting 10 MHz carriers is 16, the maximum number of carriers supporting 15 MHz carriers is 6, the maximum number of carriers supporting 20 MHz carriers is 14, and the number of carriers supporting 40 MHz / 60 MHz carriers is 1. The four optical fibers support a total of 64 carrier configurations, and the total bandwidth supports 380 MHz.

[0105] In the embodiments of the present disclosure, for each carrier received from the proximal end, before entering the carrier configuration process, the number of carriers of each bandwidth received can be verified based on Table 4 above, verifying whether the number of carriers of each bandwidth received through each optical port does not exceed the maximum number of carriers of the corresponding bandwidth required in Table 4 (i.e., the first carrier number threshold in this embodiment), and whether the total number of carriers of all bandwidths received does not exceed the maximum total number of carriers required in Table 4 (i.e., the first total carrier number threshold in this embodiment), and whether the total bandwidth of all carriers received does not exceed the maximum total bandwidth required in Table 4 (i.e., the first bandwidth threshold in this embodiment). Only when all the above conditions are met can the subsequent carrier configuration process be entered.

[0106] In an alternative embodiment of the present disclosure, it is also possible to verify whether the carriers configured from the proximal end meet the carrier planning requirements of each frequency band, and continue the subsequent process only when the carrier planning requirements of each frequency band are met. Thus, in this embodiment, the method may further include: determining that the number of carriers of each bandwidth received through the channels of each frequency band of at least one optical port meets the preset carrier planning requirements of each frequency band;

[0107] Among them, the carrier planning requirements of each frequency band include: the number of carriers of any bandwidth in any frequency band does not exceed the second carrier number threshold of any bandwidth corresponding to any frequency band, the number of carriers of all bandwidths in any frequency band does not exceed the second total carrier number threshold corresponding to any frequency band, and the total bandwidth of all carriers in any frequency band does not exceed the second bandwidth threshold corresponding to any frequency band.

[0108] Exemplarily, Table 3 shows the carrier planning requirements corresponding to different frequency bands. The carrier and bandwidth planning for each frequency band in Table 3 are as follows: Taking the 600 MHz frequency band as an example, the 600 MHz frequency band supports a maximum of 4 2T2R 5 MHz carriers, 3 2T2R 10 MHz carriers, and 2 2T2R 1 MHz carriers. The total bandwidth does not exceed 35 MHz, and the maximum number of carriers is 4. When combining carriers, on the premise of meeting the carrier planning requirements shown in Table 3, the 5 MHz, 10 MHz, 15 MHz, and 20 MHz carriers can be combined arbitrarily. For example, it can be a combination of 3 5 MHz and 1 20 MHz carriers, which not only meets the maximum number of 4 carriers and a bandwidth of 35 MHz but also meets the requirements for the maximum number of 5 MHz and 20 MHz carriers.

[0109] In the embodiments of the present disclosure, for each carrier received from the proximal end, before entering the carrier configuration process, the number of carriers with each bandwidth received can be verified based on the above Table 3. It is verified whether the number of carriers with different bandwidths to be configured to any frequency band does not exceed the maximum number of carriers with each bandwidth planned in Table 3 (i.e., the second carrier number threshold in this embodiment), whether the total number of carriers with all bandwidths to be configured to any frequency band does not exceed the maximum total number of carriers in the corresponding frequency band planned in Table 3 (i.e., the second total carrier number threshold in this embodiment), and whether the total bandwidth of all carriers to be configured to any frequency band does not exceed the maximum total RF bandwidth planned in Table 3 (i.e., the second bandwidth threshold in this embodiment). Taking the 1900 MHz frequency band as an example, according to Table 3, it is verified whether the number of 5 MHz carriers to be configured to the 1900 MHz frequency band does not exceed 4, whether the number of 10 MHz carriers does not exceed 6, whether the number of 15 MHz carriers does not exceed 4, whether the number of 20 MHz carriers does not exceed 3, whether the number of 40 MHz / 60 MHz carriers is 0, and it is verified whether the total number of carriers with all bandwidths to be configured to the 1900 MHz frequency band does not exceed 8, and it is verified whether the total bandwidth of all carriers with all bandwidths to be configured to the 1900 MHz frequency band does not exceed 65 MHz. Only when all the above conditions are met can the subsequent carrier configuration process be entered.

[0110] It should be noted that in the embodiments of the present disclosure, before entering the carrier configuration process, it can be verified only whether the number of received carriers meets the above carrier distribution requirements, or only whether the number of received carriers meets the carrier planning requirements for each frequency band above, or both can be verified. The verification method can be selected according to actual needs, and the present disclosure does not limit this.

[0111] Figure 3 It is a multi-band multi-optical-port carrier routing diagram provided by an embodiment of the present disclosure, as Figure 3As shown in the figure, in the embodiments of the present disclosure, the remote end provides group deframing modules corresponding to multiple optical ports, and also provides multiple DUC modules and antennas supporting multiple frequency bands with different numbers of carriers. The solution provided by the present disclosure is to select the corresponding group deframing modules, DUC modules, and antenna channels through the carriers configured by different optical ports, so that the carriers can be routed to the corresponding antennas through different optical ports, realizing signal routing of multiple optical ports and multiple carriers.

[0112] To implement the above embodiments, the present disclosure also provides a carrier configuration device, which is applied to the remote end of a distributed antenna system. The remote end includes multiple optical ports. The carrier configuration device can be implemented by software and / or hardware and can be integrated on the distributed antenna system provided by the embodiments of the present disclosure.

[0113] Figure 4 As shown in the structural schematic diagram of the carrier configuration device provided by an embodiment of the present disclosure, Figure 4 the carrier configuration device 40 may include: a carrier receiving module 410, a data frame obtaining module 420, a determining module 430, a processing module 440, and a mapping module 450.

[0114] Among them, the carrier receiving module 410 is configured to receive the carriers and corresponding carrier configuration information sent by the proximal end of the distributed antenna system through at least one optical port. The carrier configuration information includes antenna carrier identification, carrier bandwidth, frequency band, center frequency point, and channel identification;

[0115] The data frame obtaining module 420 is configured to obtain the data frame corresponding to the antenna carrier identification;

[0116] The determining module 430 is configured to determine the target digital up-conversion module according to the carrier bandwidth and a preset digital up-conversion module design table;

[0117] The processing module 440 is configured to process the carrier based on the target digital up-conversion module, the center frequency point, and the data frame;

[0118] The mapping module 450 is configured to map the processed carrier to the target frequency band antenna corresponding to the frequency band and the channel identification.

[0119] In an alternative embodiment of the present disclosure, the determining module 430 is specifically configured to:

[0120] Query the preset digital up-conversion module design table according to the carrier bandwidth to determine at least one candidate digital up-conversion module supporting the carrier bandwidth;

[0121] Determine the target digital up-conversion module from at least one candidate digital up-conversion module according to the preset digital up-conversion module selection strategy.

[0122] In an alternative embodiment of the present disclosure, the optical port number corresponding to each optical port is associated with an IP address; specifically, the carrier receiving module 410 is configured to:

[0123] Obtain the carrier and the corresponding carrier configuration information sent from the proximal end through the IP address associated with at least one optical port.

[0124] In an alternative embodiment of the present disclosure, the carrier configuration device 40 further includes:

[0125] A query module, configured to query the corresponding relationship between the preset IP address and the optical port number, and determine the target optical port number corresponding to the IP address for obtaining the carrier and the corresponding carrier configuration information sent from the proximal end;

[0126] A storage module, configured to store the target optical port number and the carrier into a target mapping group, and the state of the target mapping group is an inactive state.

[0127] Further, in an alternative embodiment of the present disclosure, the carrier configuration device 40 further includes:

[0128] Configure a carrier index value in the FPGA register, where the carrier index value includes the optical port number for receiving the carrier and the label of the target digital up-conversion module.

[0129] Correspondingly, the processing module 440 is specifically configured to:

[0130] In response to the Map switching instruction sent from the proximal end, switch the state of the target mapping group to an active state;

[0131] Obtain the target carrier corresponding to the optical port number in the carrier index value from the target mapping group;

[0132] Process the target carrier according to the target digital up-conversion module corresponding to the label of the target digital up-conversion module in the carrier index value, and the center frequency point and data frame of the target carrier.

[0133] In an alternative embodiment of the present disclosure, the carrier configuration device 40 further includes:

[0134] A first verification module, configured to verify the antenna carrier identifier in the carrier configuration information according to the data frame interval rule between carriers with different bandwidths.

[0135] In an alternative embodiment of the present disclosure, the carrier configuration device 40 further includes:

[0136] A second verification module, configured to determine that the number of carriers with each bandwidth received through at least one optical port meets the preset carrier distribution requirement;

[0137] Among them, the carrier distribution requirements include: the number of carriers with different bandwidths does not exceed the first carrier number threshold corresponding to the bandwidth, the number of carriers with all bandwidths does not exceed the first total carrier number threshold, and the total bandwidth of all carriers does not exceed the first bandwidth threshold.

[0138] In an alternative embodiment of the present disclosure, the carrier configuration device 40 further includes:

[0139] A third verification module, configured to determine that the number of carriers with each bandwidth received through each frequency band channel of at least one optical port meets the preset carrier planning requirements for each frequency band;

[0140] Among them, the carrier planning requirements for each frequency band include: the number of carriers with any bandwidth in any frequency band does not exceed the second carrier number threshold corresponding to any bandwidth in any frequency band, the number of carriers with all bandwidths in any frequency band does not exceed the second total carrier number threshold corresponding to any frequency band, and the total bandwidth of all carriers in any frequency band does not exceed the second bandwidth threshold corresponding to any frequency band.

[0141] The carrier configuration device provided by the embodiments of the present disclosure can execute the carrier configuration method applicable to the remote end of the distributed antenna system provided by the embodiments of the present disclosure, and has the corresponding functional modules and beneficial effects for executing the method. The content not described in detail in the embodiments of the present disclosure can be referred to the description in any method embodiment of the present disclosure.

[0142] To implement the above embodiments, the present disclosure also provides a distributed antenna system, including: a proximal end and a remote end, connected by multiple optical fibers between the proximal end and the remote end; among them, the proximal end sends down carriers and corresponding carrier configuration information to the remote end; the remote end includes multiple optical ports, and the processor on the remote end realizes the carrier configuration method as described in the foregoing embodiments by executing computer-executable instructions stored in the memory.

[0143] The embodiments of the present disclosure also provide a computer-readable storage medium, on which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, the steps of the carrier configuration method in the foregoing embodiments are implemented. To avoid repetitive description, it will not be elaborated here.

[0144] The embodiments of the present disclosure also provide a computer program product, and the computer program product is used to execute the steps of the carrier configuration method in the foregoing embodiments.

[0145] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0146] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A carrier configuration method, characterized in that, Applied to the remote end of a distributed antenna system, the remote end includes a plurality of optical ports, and the method includes: Receiving, through at least one optical port, a carrier wave and corresponding carrier configuration information sent from the proximal end of the distributed antenna system, where the carrier configuration information includes an antenna carrier identifier, a carrier bandwidth, a frequency band, a center frequency point, and a channel identifier, and the channel identifier includes SISO and MIMO; Obtaining a data frame corresponding to the antenna carrier identifier; determining a target digital up-conversion module according to the carrier bandwidth and a preset digital up-conversion module design table; Processing the carrier wave based on the target digital up-conversion module, the center frequency point, and the data frame; Mapping the processed carrier wave to a target frequency band antenna corresponding to the frequency band and the channel identifier, where the switch corresponding to the channel identifier within the frequency band is turned on.

2. The carrier configuration method according to claim 1, wherein The determining a target digital up-conversion module according to the carrier bandwidth and a preset digital up-conversion module design table includes: Querying a preset digital up-conversion module design table according to the carrier bandwidth to determine at least one candidate digital up-conversion module that supports the carrier bandwidth; Determining a target digital up-conversion module from the at least one candidate digital up-conversion module according to a preset digital up-conversion module selection strategy.

3. The carrier configuration method according to claim 1, wherein The optical port number corresponding to each optical port is associated with an IP address; The receiving, through at least one optical port, a carrier wave and corresponding carrier configuration information sent from the proximal end of the distributed antenna system includes: Obtaining the carrier wave and corresponding carrier configuration information sent from the proximal end through the IP address associated with at least one of the optical ports.

4. The carrier configuration method according to claim 3, wherein The method further includes: Querying a preset correspondence between the IP address and the optical port number to determine a target optical port number corresponding to the IP address from which the carrier wave and corresponding carrier configuration information sent from the proximal end are obtained; Storing the target optical port number and the carrier wave into a target mapping group, and the status of the target mapping group is an inactive state.

5. The carrier configuration method according to claim 4, wherein The method further includes: Configuring a carrier index value in an FPGA register, where the carrier index value includes the optical port number of the received carrier wave and the label of the target digital up-conversion module; Correspondingly, the processing the carrier wave based on the target digital up-conversion module, the center frequency point, and the data frame includes: In response to a Map switching instruction sent from the proximal end, switching the status of the target mapping group to an active state; Obtaining a target carrier wave corresponding to the optical port number in the carrier index value from the target mapping group; Processing the target carrier wave according to the target digital up-conversion module corresponding to the label of the target digital up-conversion module in the carrier index value, the center frequency point of the target carrier wave, and the data frame.

6. The carrier configuration method according to any one of claims 1-5, characterized in that, The method further includes: Verifying the antenna carrier identifier in the carrier configuration information according to the data frame interval rule between carrier waves of different bandwidths.

7. The carrier configuration method according to any one of claims 1-5, characterized in that, The method further includes: Determining that the number of carrier waves of each bandwidth received through the at least one optical port meets a preset carrier distribution requirement; Among them, the carrier distribution requirements include: the number of carriers with different bandwidths does not exceed the first carrier number threshold corresponding to the bandwidth, the total number of carriers of all bandwidths does not exceed the first total carrier number threshold, and the total bandwidth of all carriers does not exceed the first bandwidth threshold.

8. The carrier configuration method according to claim 7, wherein The method further includes: Determining that the number of carriers with each bandwidth received through each frequency band channel of the at least one optical port meets the preset carrier planning requirements for each frequency band; Among them, the carrier planning requirements for each frequency band include: the number of carriers with any bandwidth in any frequency band does not exceed the second carrier number threshold corresponding to the any bandwidth of the any frequency band, the total number of carriers with all bandwidths in the any frequency band does not exceed the second total carrier number threshold corresponding to the any frequency band, and the total bandwidth of all carriers in the any frequency band does not exceed the second bandwidth threshold corresponding to the any frequency band.

9. A carrier configuration device, characterized in that, Applied to the remote end of a distributed antenna system, the remote end includes multiple optical ports, and the device includes: A carrier receiving module, configured to receive the carriers and corresponding carrier configuration information sent by the proximal end of the distributed antenna system through at least one optical port, where the carrier configuration information includes an antenna carrier identifier, a carrier bandwidth, a frequency band, a center frequency point, and a channel identifier, and the channel identifier includes SISO and MIMO; A data frame obtaining module, configured to obtain a data frame corresponding to the antenna carrier identifier; A determining module, configured to determine a target digital up-conversion module according to the carrier bandwidth and a preset digital up-conversion module design table; A processing module, configured to process the carrier based on the target digital up-conversion module, the center frequency point, and the data frame; A mapping module, configured to map the processed carrier to a target frequency band antenna corresponding to the frequency band and the channel identifier, and turn on the switch of the channel corresponding to the channel identifier within the frequency band.

10. A distributed antenna system, characterized in that, Including: A proximal end and a remote end, where the proximal end and the remote end are connected by multiple optical fibers; among them, The proximal end sends down carriers and corresponding carrier configuration information to the remote end; The remote end includes multiple optical ports, and a processor on the remote end implements the carrier configuration method according to any one of claims 1 to 8 by executing computer-executable instructions stored in a memory.

11. A computer-readable storage medium, characterized in that, Computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, the carrier configuration method according to any one of claims 1 to 8 is implemented.

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