Distributed antenna system and band licensing method therefor

Abstract

Provided in the present invention are a distributed antenna system and a band licensing method therefor. The distributed antenna system comprises a near-end device and one or more far-end devices, which are connected to the near-end device. The band licensing method comprises: a near-end device acquiring an activation code of a band to be licensed; acquiring band license information on the basis of the activation code; and then notifying a far-end device to activate a radio-frequency link which corresponds to band information in the band license information. By means of the present invention, a band licensing function of a distributed antenna system is realized, and the requirement of a customer for selectively opening some bands is met, thereby reducing the primary operation costs of an operator.

Description

A distributed antenna system and frequency band licensing method thereof Technical Field

[0001] The present invention relates to the field of communications, and in particular to a distributed antenna system and a frequency band licensing method thereof. Background Art

[0002] Indoor wireless signal coverage refers to the coverage of indoor places such as residential buildings, subways, airports, stadiums, hotels, and shopping malls. With the popularization of fifth-generation mobile communication technology (5G), about 85% of business traffic will occur in indoor scenarios. The quality of indoor wireless signal coverage is directly related to the experience of 5G indoor applications. However, due to the low penetration of 5G millimeter waves in spatial transmission and susceptibility to interference, as well as the many obstacles, strong interference and complex environment in indoor places, the effect of outdoor base station coverage indoors is poor. To this end, a mobile communication network called a distributed antenna system can be established for indoor wireless coverage.

[0003] A distributed antenna system typically consists of multiple spatially separated antenna nodes or components that transmit signals from a source to a remote location in a step-by-step manner via various signal transmission media. A distributed antenna system typically has a multi-stage architecture, consisting of a near-end device and multiple remote devices. The near-end device receives radio frequency signals from a signal source, such as a base station, and transmits these signals to the remote device via optical fiber. The remote device is located where signal coverage needs to be expanded or enhanced, allowing it to communicate directly with the user's mobile device.

[0004] Distributed antenna system hardware supports multiple frequency bands. However, to reduce early operating costs, some operators only require some frequency bands initially, and then expand the frequency bands after the market matures or expands. To this end, it is necessary to provide a frequency band licensing method for distributed antenna systems to selectively open some frequency bands and lock other frequency bands supported by the product hardware. Subsequent customers can purchase licenses for other frequency bands if needed and then activate the corresponding frequency bands.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide a distributed antenna system and a frequency band licensing method thereof, which are used to implement the frequency band licensing function of the distributed antenna system and meet the customer's demand for selectively opening part of the frequency band.

[0007] The technical solutions provided by the present invention are as follows:

[0008] A frequency band licensing method for a distributed antenna system, wherein the distributed antenna system includes a near-end device and one or more remote devices, wherein the remote devices are connected to the near-end device, and the frequency band licensing method includes:

[0009] The proximal device obtains an activation code for a frequency band to be authorized;

[0010] The near-end device obtains frequency band license information according to the activation code;

[0011] The near-end device notifies the remote device to activate a radio frequency link corresponding to the frequency band information in the frequency band permission information.

[0012] In some embodiments, the distributed antenna system further includes one or more relay devices, wherein the relay devices are connected to the near-end device, and the remote device is connected to the near-end device through the relay devices;

[0013] The activation code is a ciphertext containing the frequency band license information;

[0014] The near-end device obtains the frequency band license information by decrypting the activation code;

[0015] The near-end device sends a frequency band activation message to the relay device, where the frequency band activation message includes the frequency band information in the frequency band license information;

[0016] In response to the frequency band activation message, the relay device notifies a remote device connected thereto to activate a radio frequency link corresponding to the frequency band information.

[0017] In some embodiments, the band activation message further includes an activation code type;

[0018] The relay device notifying a remote device connected thereto to activate a radio frequency link corresponding to the frequency band information includes:

[0019] If the activation code type is a common version, the relay device notifies the remote device connected thereto to activate the radio frequency link corresponding to the frequency band information;

[0020] If the activation code type is professional version, the relay device notifies the remote device connected thereto to activate the radio frequency link and maintenance link corresponding to the frequency band information.

[0021] In some embodiments, the frequency band license information further includes the number of remote devices;

[0022] The frequency band activation message further includes the number of remote devices in the frequency band license information;

[0023] The relay device notifying the remote devices connected thereto to activate the radio frequency links corresponding to the frequency band information includes: the relay device notifying the remote devices connected thereto, which number does not exceed the number of the remote devices, to activate the radio frequency links corresponding to the frequency band information.

[0024] In some embodiments, the frequency band permission information further includes identification codes of one or more relay devices;

[0025] The sending, by the near-end device, of a frequency band activation message to the relay device includes: the near-end device sending, by the near-end device, a frequency band activation message to the relay device with an identification code specified in the frequency band permission information.

[0026] The present invention also provides a frequency band licensing method for a distributed antenna system, wherein the distributed antenna system includes a near-end device, one or more relay devices connected to the near-end device, and one or more remote devices connected to each relay device. The frequency band licensing method includes:

[0027] The relay device obtains an activation code for the frequency band to be authorized, and obtains frequency band license information according to the activation code;

[0028] The relay device notifies a remote device connected thereto to activate a radio frequency link corresponding to the frequency band information in the frequency band license information.

[0029] The present invention also provides a frequency band licensing method for a distributed antenna system. The distributed antenna system includes a network management center and one or more distributed antenna devices. Each distributed antenna device includes a near-end device and one or more remote devices. The remote devices are connected to the near-end device. The frequency band licensing method includes:

[0030] The network management center obtains an identification code of the distributed antenna device and an activation code of a frequency band to be authorized in the distributed antenna device identified by the identification code of the distributed antenna device;

[0031] The network management center sends a first activation message to the distributed antenna device with the specified identification code, where the first activation message includes an activation code of the frequency band to be authorized;

[0032] The proximal device of the distributed antenna device receives the first activation message, and obtains the activation code of the frequency band to be authorized from the first activation message;

[0033] The proximal device of the distributed antenna device activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the frequency band to be authorized.

[0034] In some embodiments, it further includes:

[0035] The gateway center also obtains the license period of the frequency band to be authorized;

[0036] The first activation message also includes a licensing period of the frequency band to be authorized;

[0037] The proximal device of the distributed antenna device receives the first activation message, and obtains the activation code of the frequency band to be authorized and the license period of the frequency band from the first activation message;

[0038] The proximal device of the distributed antenna device activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the frequency band to be authorized; and issues a corresponding prompt message when the license period of the frequency band is approaching.

[0039] The present invention also provides a distributed antenna system, comprising a near-end device and one or more remote devices, wherein the remote device is connected to the near-end device;

[0040] The near-end device obtains an activation code for a frequency band to be authorized; obtains frequency band license information according to the activation code; and notifies the remote device to activate a radio frequency link corresponding to the frequency band information in the frequency band license information.

[0041] The present invention also provides a distributed antenna system, comprising a near-end device, one or more relay devices connected to the near-end device, and one or more remote devices connected to each relay device;

[0042] The relay device obtains the frequency band information to be authorized; and notifies the remote device connected thereto to activate the radio frequency link corresponding to the frequency band information.

[0043] The present invention also provides a distributed antenna system, comprising a network management center and one or more distributed antenna devices, each distributed antenna device comprising a near-end device and one or more remote devices;

[0044] The network management center obtains an identification code of a distributed antenna device and an activation code of a frequency band to be authorized in the distributed antenna device identified by the identification code of the distributed antenna device; and sends a first activation message to the distributed antenna device with the specified identification code, wherein the first activation message includes the activation code of the frequency band to be authorized;

[0045] The proximal device of the distributed antenna device receives the first activation message and obtains the activation code of the frequency band to be authorized from the first activation message; and activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the frequency band to be authorized.

[0046] Compared with the prior art, the distributed antenna system and frequency band licensing method provided by the present invention can at least bring the following beneficial effects:

[0047] This invention implements the frequency band licensing function of a distributed antenna system, meeting customers' needs for selectively opening up certain frequency bands and reducing operators' initial operating costs. It also provides multiple frequency band licensing methods. These methods can be used to activate the frequency bands to be licensed at the site using a proximal device or relay device, or remotely through a network management center without visiting the site. This eliminates the need to restart or modify the hardware of deployed devices. Once activated, the frequency bands can immediately output RF signals in the corresponding frequency band, without affecting the use of existing networked devices. This method is fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the distributed antenna system and its frequency band licensing method.

[0049] FIG1 is a flow chart of an embodiment of a method for frequency band licensing of a distributed antenna system according to the present invention;

[0050] FIG2 is a flow chart of another embodiment of a method for frequency band licensing of a distributed antenna system according to the present invention;

[0051] 3 is a flow chart of another embodiment of a method for frequency band licensing of a distributed antenna system according to the present invention;

[0052] FIG4 is a flow chart of another embodiment of a method for frequency band licensing of a distributed antenna system according to the present invention;

[0053] FIG5 is a schematic structural diagram of an embodiment of a distributed antenna system of the present invention;

[0054] FIG6 is a schematic structural diagram of another embodiment of a distributed antenna system of the present invention;

[0055] FIG7 is a schematic structural diagram of another embodiment of the distributed antenna system of the present invention. DETAILED DESCRIPTION

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0057] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. As used herein, "one" not only means "only one" but also "more than one."

[0058] As mentioned above, distributed antenna systems generally support multiple frequency bands in hardware, but some operators initially use only a few frequency bands and then expand the frequency band range after the market matures. To this end, the present invention provides a frequency band licensing method for distributed antenna systems.

[0059] In one embodiment of the present invention, as shown in FIG1 , a frequency band licensing method for a distributed antenna system includes:

[0060] Step S10: The near-end device obtains an activation code for a frequency band to be authorized;

[0061] Step S20: The near-end device obtains frequency band license information according to the activation code;

[0062] In step S30, the local device notifies the remote device to activate the radio frequency link corresponding to the frequency band information in the frequency band permission information.

[0063] Specifically, the distributed antenna system includes a near-end unit (PBMU) and one or more remote units (IRUs) connected to the near-end unit. The near-end unit can be connected to the remote unit via an optical fiber.

[0064] Activation codes are generally used to verify the legitimacy of users. In this application, activation codes are used to ensure that legitimate users use the system's frequency band resources within a reasonable range. For example, if a user purchases frequency band B for product A, the corresponding activation code can only be used to activate frequency band B for the user.

[0065] Activation codes are generated by the equipment vendor according to specific rules. The vendor generates a corresponding activation code based on the frequency band resources purchased by the user and then sends it to the user, who uses it to activate the corresponding frequency band resources for the purchased product. In this embodiment, the user enters the activation code for the frequency band to be authorized through the web interface of the near-end device and then authorizes the activation. Upon receiving the instruction, the near-end device automatically activates the corresponding frequency band resources using the method provided in this embodiment.

[0066] The activation code contains the frequency band license information, which in turn contains the frequency band information to be authorized. Typically, the activation code is the encrypted form of the frequency band license information—that is, the frequency band license information is encrypted to obtain the activation code. To obtain the frequency band license information from the activation code, you must first decrypt it.

[0067] The PBMU obtains the frequency band license information from the activation code, and then activates the RF link of the authorized frequency band in the IRU and shuts down the RF link of the unlicensed frequency band based on the frequency band license information; or the PBMU notifies the IRU of the frequency band license information, and the IRU activates the RF link of the authorized frequency band and shuts down the RF link of the unlicensed frequency band.

[0068] This embodiment provides a method for activating a frequency band to be authorized through a local device. The licensed frequency band can be activated locally, thus implementing the frequency band licensing function of the distributed antenna system and meeting the customer's need to selectively open some frequency bands.

[0069] In another embodiment of the present invention, as shown in FIG2 , a frequency band licensing method for a distributed antenna system includes:

[0070] The distributed antenna system includes a near-end unit (PBMU), one or more relay units (NEUs) connected to the near-end unit, and one or more remote units (IRUs) connected to each relay unit.

[0071] Step S100: The local device obtains an activation code for a frequency band to be authorized. The activation code is a ciphertext containing frequency band license information.

[0072] Step S200: The local device decrypts the activation code and obtains the frequency band license information;

[0073] Step S300: The local device sends a frequency band activation message to the relay device, where the frequency band activation message includes the frequency band information in the frequency band license information.

[0074] Step S400: In response to the frequency band activation message, the relay device notifies the remote device connected thereto to activate the radio frequency link corresponding to the frequency band information.

[0075] Specifically, the near-end device can be connected to the relay device via optical fiber, which in turn is connected to the far-end device via optical fiber. The near-end device receives radio frequency signals from a signal source such as a base station and transmits them to the far-end device via the relay device, thereby enhancing signal coverage.

[0076] In the PBMU-NEU-IRU system architecture, frequency band license information is centrally managed by the PBMU. The PBMU sends the frequency band license information to the NEU. The NEU activates the RF links of the authorized frequency bands in the IRU based on the frequency band license information and shuts down the RF links of the unlicensed frequency bands in the IRU.

[0077] Each PBMU has a unique license for each frequency band. The frequency band can be uniquely identified based on the frequency band information, such as the band number. The frequency band license information can include only the frequency band information to be authorized, or it can be bound to the frequency band information and the near-end device identification code, indicating that activation of the specified frequency band information is limited to the distributed antenna system identified by the near-end device with the specified identification code. This means that the RF link corresponding to the specified frequency band information can be activated for all IRUs in the system.

[0078] The identification code of the device can be the device serial number SN, or the identification number of an important component in the device, or a combination of identification numbers of multiple important components in the device, as long as the serial number SN or the identification number or the combination of identification numbers can uniquely identify the device.

[0079] The frequency band license information is encrypted to generate the corresponding activation code. For example, the plain text information is the identification code of frequency band A and PBMU, and the activation code of frequency band A of this system is obtained through the encryption algorithm. The encryption algorithm can be selected from existing technologies as needed.

[0080] The user can enter the activation code for the frequency band to be authorized or the license file through the local device's web interface. The PBMU then extracts the activation code from the license file. After obtaining the activation code, the local device decrypts it to obtain the corresponding plaintext information and retrieves the frequency band license information from the plaintext. For example, the license information includes the frequency band information and the local device's identification code. If decryption fails, the activation code is invalid. If decryption succeeds, the local device further checks whether the local device's identification code in the license information matches its own. If not, the activation code cannot be used in this distributed antenna system. If they match, the local device sends the specified frequency band information to the relay device via a frequency band activation message. The relay device then notifies the remote device. The remote device supports RF links for all frequency bands, which are disabled by default. Upon receiving the specified frequency band information from the relay device, the remote device activates the corresponding RF link. In a specific implementation, a radio frequency switch may be used to activate / deactivate the corresponding radio frequency link by turning on / off the radio frequency switch.

[0081] In the above solution, the signal output of the near-end device and the relay device can be normal. The RF switch of the remote IRU is turned off for inactive frequency bands and turned on for active frequency bands. In other embodiments, the signal of the inactive frequency band can also be turned off at the near-end device. This does not shut down the signal at the remote device, but still has the effect of shutting down the RF link of the relevant frequency band.

[0082] Users can query the authorization status of the frequency band on the web terminal of the local device. The web terminal can display all frequency bands supported by the system. Authorized frequency bands and unauthorized frequency bands can be distinguished by different colors or texts; it can also display only authorized frequency bands.

[0083] Users can authorize bands by adding a band activation code or a band license file on the web side of the local device. Each authorization operation only authorizes one band. Multiple authorization operations are required for multiple bands on the same PBMU.

[0084] When a Band channel is not authorized, its related monitoring quantities will be blocked and not displayed.

[0085] In one embodiment, frequency band activation codes are divided into professional and standard versions. The standard activation code only activates the RF link, while the professional activation code activates not only the RF link but also the maintenance link. The maintenance link is used to report relevant frequency band parameters to the network management center, allowing users to adjust these parameters. For example, if the frequency band parameters are transmitted via an optical link, activating the optical link is equivalent to activating the maintenance link.

[0086] Step S300 includes: Step S310: The near-end device identifies the type of the activation code, and sends a frequency band activation message including the frequency band information to be authorized and the activation code type to the relay device.

[0087] Step S400 includes: Step S410: the relay device notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information; if the activation code type is professional version, the relay device and the remote device connected to it also activate the maintenance link corresponding to the frequency band information.

[0088] In one embodiment, the frequency band license information also includes the number of remote devices. The number of remote devices can be directly expressed as a number. For example, if a user initially purchases only 10 IRUs, only the frequency bands on those 10 IRUs will be activated. Later, if the number is expanded to 50 IRUs, the frequency bands on all 50 IRUs can be activated by purchasing frequency band licenses. The number of remote devices can also be expressed in levels, for example, level 1 for 10 IRUs, level 2 for 20 IRUs, and so on.

[0089] Specifically, step S300 includes: step S320: the local device sends a frequency band activation message to the relay device, where the frequency band activation message includes information about the frequency band to be authorized and the number of remote devices.

[0090] Step S400 includes: Step S420: the relay device notifies the remote devices connected thereto, which number does not exceed the number of remote devices, to activate the radio frequency link corresponding to the frequency band information.

[0091] This method limits the activation of the RF link to a specific frequency band for a specified number of remote devices. This allows different selling prices to be applied to different numbers of remote devices, even though the same frequency band is activated.

[0092] In one embodiment, the frequency band permission information further includes identification codes of one or more remote devices.

[0093] Specifically, step S300 includes: step S330: the local device sends a frequency band activation message to the relay device, where the frequency band activation message includes information about the frequency band to be authorized and identification codes of one or more remote devices.

[0094] Step S400 includes: Step S430: the relay device notifies all remote devices having the same identification code as the remote device in the frequency band activation message to activate the radio frequency link corresponding to the frequency band information.

[0095] This method only activates the radio frequency link on the remote device with the specified identification code. This method can also achieve different prices for different numbers of remote devices, even though the same frequency band is activated.

[0096] This method binds the IRU's identification code. When the optical port where the IRU with the binding identification code is located is abnormal, it can be connected to other idle optical ports to continue working.

[0097] In one embodiment, the frequency band permission information further includes one or more optical port numbers connected to remote devices.

[0098] Specifically, step S300 includes: step S340: the local device sends a frequency band activation message to the relay device, where the frequency band activation message includes information about the frequency band to be authorized and one or more optical port numbers connected to the remote device.

[0099] Step S400 includes: Step S440: the relay device notifies a remote device connected to the optical port indicated by the optical port number in the frequency band activation message to activate a radio frequency link corresponding to the frequency band information.

[0100] In this method, the activation code is bound to the optical port number. Only the remote device at the specified optical port number can activate the corresponding frequency band. If an IRU at a specified optical port fails, a new IRU can be directly replaced at the original optical port to continue working without reactivation.

[0101] In one embodiment, the frequency band license information further includes identification codes of one or more relay devices.

[0102] Specifically, step S300 includes: step S350: the near-end device sends a frequency band activation message to the relay device with the specified identification code in the frequency band permission information.

[0103] In this way, the activation code is bound to the identification code of the relay device. Only the remote device connected to the relay device with the specified identification code can activate the RF link of the specified frequency band.

[0104] This approach allows remote devices connected to different relay devices to activate different frequency bands. For example, a distributed antenna system (DAS) consists of one full-band PBMU and two NEUs. The IRU connected to NEU1 activates the N77 band, while the IRU connected to NEU2 activates the B20 band. In this case, two activation codes are required: one derived from the N77 band, the NEU1 identifier, and the PBMU identifier; the other derived from the B20 band, the NEU2 identifier, and the PBMU identifier. Activating these two activation codes separately on the PBMUs achieves this requirement.

[0105] In one embodiment, the frequency band permission information further includes the number of optical ports connected to the remote device.

[0106] Specifically, step S300 includes: step S360: the local device sends a frequency band activation message to the relay device, where the frequency band activation message includes information about the frequency band to be authorized and the number of optical ports connected to the remote device.

[0107] Step S400 includes: Step S460: the relay device notifies the remote devices under the optical ports whose number does not exceed the number of optical ports connected to the remote devices to activate the radio frequency links corresponding to the frequency band information.

[0108] This method controls the number of remote devices that can be activated on the frequency band by controlling the number of optical ports connected to the remote devices.

[0109] In one embodiment, the frequency band permission information further includes the number of relay devices or the number of optical ports connected to the relay devices.

[0110] The near-end device controls a specified number of relay devices to receive the frequency band activation message, or controls relay devices with a specified number of optical ports to receive the frequency band activation message, based on the frequency band license information.

[0111] This embodiment provides various types of frequency band licensing information (equivalent to various activation codes), enabling frequency band licensing in various scenarios through near-end devices, meeting the needs of various customers. Frequency band activation eliminates the need to restart or modify the hardware of deployed devices. Activation instantly outputs RF signals, without affecting the use of existing devices. Activation is simple, fast, and efficient.

[0112] In another embodiment of the present invention, as shown in FIG3 , a frequency band licensing method for a distributed antenna system includes:

[0113] Step S101: The relay device obtains the activation code of the frequency band to be authorized, and obtains the frequency band license information according to the activation code;

[0114] Step S201: The relay device notifies the remote device connected thereto to activate the radio frequency link corresponding to the frequency band information in the frequency band permission information.

[0115] Specifically, the distributed antenna system includes a near-end unit (PBMU), one or more relay units (NEUs) connected to the near-end unit, and one or more remote units (IRUs) connected to each relay unit.

[0116] On the relay device, directly enter the activation code for the frequency band to be authorized. The relay device uses the activation code to obtain the frequency band license information, which includes the frequency band to be authorized. The relay device then notifies the connected remote device to activate the RF link corresponding to the frequency band to be authorized.

[0117] The remote device supports RF links of all frequency bands, which are disabled by default. Upon receiving activation information from the relay device, the remote device will enable the corresponding RF link.

[0118] If you want to activate multiple frequency bands, you can perform multiple activation operations, activating one frequency band at a time. You can also enter multiple frequency band information at once, and the relay device will activate the RF link of the corresponding frequency band information of the remote device one by one.

[0119] In this way, users can directly authorize the Band and query the authorization status of the Band on the relay device.

[0120] In one embodiment, step S101 includes: step S111: the relay device obtains an activation code of the frequency band to be authorized, and obtains frequency band license information and activation code type according to the activation code; the frequency band license information includes the frequency band information to be authorized.

[0121] Step S201 includes: Step S211: the relay device notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information to be authorized; if the activation type is professional version, the relay device and the remote device connected to it also activate the maintenance link corresponding to the frequency band information to be authorized.

[0122] In one embodiment, step S101 includes: step S121: the relay device obtains an activation code of the frequency band to be authorized, and obtains frequency band license information according to the activation code, where the frequency band license information includes information of the frequency band to be authorized and the number of remote devices.

[0123] Step S201 includes: Step S221: the relay device notifies the remote devices connected thereto, which number does not exceed the number of the remote devices, to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0124] In one embodiment, step S101 includes: in step S131, the relay device obtains an activation code for the frequency band to be authorized, and obtains frequency band license information according to the activation code, where the frequency band license information includes the frequency band information to be authorized and identification codes of one or more remote devices.

[0125] Step S201 includes: Step S231: the relay device notifies all remote devices with designated identification codes to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0126] In one embodiment, step S101 includes: step S141: the relay device obtains the activation code of the frequency band to be authorized, and obtains frequency band license information according to the activation code, the frequency band license information including the frequency band information to be authorized and one or more optical port numbers connected to the remote device.

[0127] Step S201 includes: Step S241: the relay device notifies the remote device connected to the optical port indicated by the designated optical port number to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0128] In one embodiment, step S101 includes: step S151: the relay device obtains the activation code of the frequency band to be authorized, and obtains frequency band license information according to the activation code, the frequency band license information including the frequency band information to be authorized and the number of optical ports connected to the remote device.

[0129] Step S201 includes: Step S251: the relay device notifies remote devices under optical ports that do not exceed the designated number of optical ports to activate radio frequency links corresponding to the frequency band information to be authorized.

[0130] This embodiment provides a method for licensing frequency bands through relay devices, enabling the activation of licensed frequency bands on the relay device. Activation eliminates the need to reboot or modify the hardware of deployed devices. Activation immediately generates RF signals, ensuring the smooth operation of existing devices. This makes activation simple, fast, and efficient.

[0131] In another embodiment of the present invention, as shown in FIG4 , a frequency band licensing method for a distributed antenna system includes:

[0132] Step S1000: The network management center obtains the identification code of the distributed antenna device and the activation code of the frequency band to be authorized in the distributed antenna device identified by the identification code. The activation code is a ciphertext containing frequency band authorization information; the frequency band authorization information includes the frequency band information and the identification code of the proximal device of the distributed antenna device;

[0133] Step S2000: The network management center sends a first activation message to the distributed antenna device with the specified identification code, where the first activation message includes an activation code for the frequency band to be authorized.

[0134] Step S3000: The near-end device of the distributed antenna device receives the first activation message and obtains the activation code of the frequency band to be authorized from the first activation message;

[0135] In step S4000, the proximal device of the distributed antenna device activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the frequency band to be authorized.

[0136] Specifically, a distributed antenna system includes a network management center and one or more distributed antenna devices. Each distributed antenna device includes a near-end device, one or more relay devices connected to the near-end device, and one or more remote devices connected to each relay device. The network management center has a wired or wireless connection to the near-end device of each distributed antenna device.

[0137] The identification code of the distributed antenna device is used to uniquely identify the distributed antenna device, and may adopt the identification code of its important components, such as the identification code of the near-end device; or may be determined independently.

[0138] Step S4000 may adopt the method for performing frequency band licensing by the near-end device in the aforementioned embodiment.

[0139] Users can query the frequency band authorization status through the network management center and authorize the frequency band by adding a frequency band license.

[0140] In one embodiment, step S1000 includes: step S1100 the gateway center further obtains the licensing period of the frequency band to be authorized.

[0141] Step S2000 includes: Step S2100: The first activation message includes the activation code of the frequency band to be authorized and the license period of the frequency band.

[0142] Step S3000 includes: Step S3100: the proximal device of the distributed antenna device receives a first activation message, and obtains an activation code of the frequency band to be authorized and a license period of the frequency band from the first activation message.

[0143] Step S4000 includes: step S4100, the proximal device of the distributed antenna device activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the frequency band to be authorized, and issues a corresponding prompt message when the license period of the frequency band is approaching, and closes the radio frequency link corresponding to the frequency band information after the license period of the frequency band is exceeded.

[0144] This embodiment provides a method for licensing frequency bands through a network management center, enabling remote activation of licensed frequency bands and setting the license expiration date. Activation does not affect existing network equipment, requiring no reboot or hardware changes. Activation is simple, fast, and efficient. Users are notified when the license expiration date is near.

[0145] In one embodiment of the present invention, as shown in FIG5 , a distributed antenna system 100 includes:

[0146] A near-end device 10 and one or more far-end devices 30 connected to the near-end device 10 .

[0147] The near-end device 10 is configured to obtain an activation code for a frequency band to be authorized, obtain frequency band license information according to the activation code, and notify the remote device to activate a radio frequency link corresponding to the frequency band information in the frequency band license information.

[0148] The remote device 30 is configured to activate a radio frequency link corresponding to the frequency band information in the frequency band license information.

[0149] In this embodiment, by activating the frequency band to be authorized through the proximal device, the frequency band for which the license has been purchased can be activated locally, thereby realizing the frequency band licensing function of the distributed antenna system and meeting the customer's demand for selective opening of some frequency bands.

[0150] In another embodiment of the present invention, as shown in FIG6 , a distributed antenna system 100 includes:

[0151] A near-end device 10 , one or more relay devices 20 connected to the near-end device 10 , and one or more far-end devices 30 connected to each relay device 20 .

[0152] The near-end device 10 is configured to obtain an activation code for a frequency band to be authorized, the activation code being a ciphertext containing frequency band license information; decrypt the activation code to obtain the frequency band license information; and send a frequency band activation message to the relay device, the frequency band activation message containing the frequency band information in the frequency band license information;

[0153] The relay device 20 is configured to, in response to the frequency band activation message, notify a remote device connected thereto to activate a radio frequency link corresponding to the frequency band information;

[0154] The remote device 30 is configured to activate a radio frequency link corresponding to the frequency band information.

[0155] In one embodiment, the activation code for the frequency band is divided into a professional version and a common version. The common version activation code only activates the radio frequency link, while the professional version activation code activates not only the radio frequency link of the frequency band but also the maintenance link of the frequency band.

[0156] The near-end device 10 is further configured to send a frequency band activation message to the relay device, where the frequency band activation message includes information about the frequency band to be authorized and an activation code type.

[0157] The relay device 20 is further configured to notify the remote device connected thereto to activate the radio frequency link corresponding to the frequency band information; if the activation code type is professional version, the remote device connected thereto is also notified to activate the maintenance link corresponding to the frequency band information.

[0158] In one embodiment, the frequency band license information further includes the number of remote devices.

[0159] The local device 10 is further configured to send a frequency band activation message to the relay device. The frequency band activation message includes information about the frequency band to be authorized and the number of remote devices.

[0160] The relay device 20 is further configured to notify the remote devices connected thereto, which number does not exceed the number of remote devices, to activate the radio frequency link corresponding to the frequency band information.

[0161] In one embodiment, the frequency band permission information further includes identification codes of one or more remote devices.

[0162] The local device 10 is further configured to send a frequency band activation message to the relay device, where the frequency band activation message includes information about the frequency band to be authorized and identification codes of one or more remote devices.

[0163] The relay device 20 is further configured to notify all remote devices having the same identification code as the remote device included in the frequency band activation message to activate the radio frequency link corresponding to the frequency band information.

[0164] In one embodiment, the frequency band permission information further includes one or more optical port numbers connected to remote devices.

[0165] The local device 10 is further configured to send a frequency band activation message to the relay device. The frequency band activation message includes information about the frequency band to be authorized and one or more optical port numbers connected to the remote device.

[0166] The relay device 20 is further configured to notify a remote device connected to the optical port indicated by the optical port number in the frequency band activation message to activate a radio frequency link corresponding to the frequency band information.

[0167] In one embodiment, the frequency band license information further includes identification codes of one or more relay devices.

[0168] The near-end device 10 is further configured to send a frequency band activation message to the relay device with the specified identification code in the frequency band license information.

[0169] In one embodiment, the frequency band permission information further includes the number of optical ports connected to the remote device.

[0170] The local device 10 is further configured to send a frequency band activation message to the relay device. The frequency band activation message includes information about the frequency band to be authorized and the number of optical ports connected to the remote device.

[0171] The relay device 20 is further configured to notify remote devices connected to optical ports whose number does not exceed the number of optical ports connected to the remote devices to activate radio frequency links corresponding to the frequency band information.

[0172] In one embodiment, the frequency band permission information further includes the number of relay devices or the number of optical ports connected to the relay devices.

[0173] The near-end device 10 is further configured to control a specified number of relay devices to receive the frequency band activation message, or control relay devices with a specified number of optical ports to receive the frequency band activation message, based on the frequency band license information.

[0174] In another embodiment of the present invention, as shown in FIG6 , a distributed antenna system 100 includes:

[0175] The system includes a near-end device 10, one or more relay devices 20 connected to the near-end device, and one or more far-end devices 30 connected to each relay device.

[0176] The relay device 10 is configured to obtain an activation code for the frequency band to be authorized and obtain frequency band license information according to the activation code; and notify a remote device connected thereto to activate a radio frequency link corresponding to the frequency band information in the frequency band license information.

[0177] In one embodiment, the relay device 10 is further used to obtain an activation code for the frequency band to be authorized, and obtain frequency band license information and activation code type based on the activation code; the frequency band license information includes the frequency band information to be authorized; notify the remote device connected to it to activate the radio frequency link corresponding to the frequency band information to be authorized; if the activation type is professional version, the relay device and the remote device connected to it also activate the maintenance link corresponding to the frequency band information to be authorized.

[0178] In one embodiment, the relay device 10 is further configured to obtain an activation code for the frequency band to be authorized, and obtain frequency band license information based on the activation code, where the frequency band license information includes the frequency band information to be authorized and the number of remote devices; and notify remote devices connected to it, which number does not exceed the number of remote devices, to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0179] In one embodiment, the relay device 10 is further used to obtain an activation code for the frequency band to be authorized, and obtain frequency band license information based on the activation code, where the frequency band license information includes the frequency band information to be authorized and identification codes of one or more remote devices; and notify all remote devices with the same identification code as the remote device included in the frequency band activation message to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0180] In one embodiment, the relay device 10 is further used to obtain an activation code for the frequency band to be authorized, and obtain frequency band license information based on the activation code, where the frequency band license information includes the frequency band information to be authorized and one or more optical port numbers connected to the remote device; and notify the remote device connected to the optical port indicated by the specified optical port number to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0181] In one embodiment, the relay device 10 is further used to obtain an activation code for the frequency band to be authorized, and obtain frequency band license information based on the activation code, where the frequency band license information includes the frequency band information to be authorized and the number of optical ports connected to the remote device; and notify the remote devices under the optical ports that do not exceed the specified number of optical ports to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0182] In this embodiment, frequency band licensing is performed through a relay device.

[0183] In another embodiment of the present invention, as shown in FIG7 , a distributed antenna system includes:

[0184] It includes a network management center 200 and one or more distributed antenna devices 300. Each distributed antenna device 300 includes a near-end device 10, one or more relay devices 20 connected to the near-end device, and one or more remote devices 30 connected to each relay device.

[0185] The network management center 200 is configured to obtain an identification code of a distributed antenna device and an activation code for a frequency band to be authorized in the distributed antenna device corresponding to the identification code of the distributed antenna device, wherein the activation code is a ciphertext containing frequency band authorization information; the frequency band authorization information includes the frequency band information and the identification code of a proximal device of the distributed antenna device; and to send a first activation message to the distributed antenna device with the specified identification code, wherein the first activation message includes the activation code for the frequency band to be authorized.

[0186] The proximal device 10 of the distributed antenna device 300 receives the first activation message, obtains the activation code of the frequency band to be authorized from the first activation message, and activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the frequency band to be authorized.

[0187] In one embodiment, the network management center 200 is further used to obtain the identification code of the distributed antenna device, the activation code of the frequency band to be authorized in the distributed antenna device corresponding to the identification code of the distributed antenna device, and the license period of the frequency band to be authorized; and send a first activation message to the distributed antenna device with the specified identification code, the first activation message including the activation code of the frequency band to be authorized and the license period of the frequency band.

[0188] The proximal device 10 of the distributed antenna device 300 is also used to receive a first activation message, obtain the activation code of the frequency band to be authorized and the license period of the frequency band from the first activation message; activate the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the frequency band to be authorized, and issue a corresponding prompt message when the license period of the frequency band is approaching, and close the radio frequency link corresponding to the frequency band information after the license period of the frequency band is exceeded.

[0189] It should be noted that the embodiments of the distributed antenna system provided by the present invention and the aforementioned embodiments of the frequency band licensing method for a distributed antenna system are based on the same inventive concept and can achieve the same technical effects. Therefore, for other specific details of the embodiments of the distributed antenna system, reference can be made to the aforementioned embodiments of the frequency band licensing method for a distributed antenna system.

[0190] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A frequency band licensing method for a distributed antenna system, the distributed antenna system comprising a proximal device and one or more distal devices, the distal devices being connected to the proximal device, characterized in that, The frequency band licensing method includes: The proximal device obtains an activation code for a frequency band to be authorized; The proximal device obtains frequency band licensing information according to the activation code; The proximal device notifies the distal device to activate a radio frequency link corresponding to the frequency band information in the frequency band licensing information.

2. The frequency band licensing method according to claim 1, wherein: The distributed antenna system further includes one or more relay devices, the relay devices are connected to the proximal device, and the distal device is connected to the proximal device through the relay devices; The activation code is a ciphertext containing the frequency band licensing information; The proximal device decrypts the activation code to obtain the frequency band licensing information; The proximal device sends a frequency band activation message to the relay device, and the frequency band activation message contains the frequency band information in the frequency band licensing information; In response to the frequency band activation message, the relay device notifies the distal device connected thereto to activate a radio frequency link corresponding to the frequency band information.

3. The frequency band licensing method according to claim 2, wherein: The frequency band activation message further includes an activation code type; The relay device notifying the distal device connected thereto to activate a radio frequency link corresponding to the frequency band information includes: If the activation code type is the general version, the relay device notifies the distal device connected thereto to activate a radio frequency link corresponding to the frequency band information; If the activation code type is the professional version, the relay device notifies the distal device connected thereto to activate a radio frequency link and a maintenance link corresponding to the frequency band information.

4. The frequency band licensing method according to claim 2, wherein: The frequency band licensing information further includes the number of distal devices; The frequency band activation message further includes the number of distal devices in the frequency band licensing information; The relay device notifying the distal device connected thereto to activate a radio frequency link corresponding to the frequency band information includes: The relay device notifies the distal devices connected thereto that do not exceed the number of distal devices to activate radio frequency links corresponding to the frequency band information.

5. The frequency band licensing method according to claim 2, wherein: The frequency band licensing information further includes identification codes of one or more relay devices; The proximal device sending a frequency band activation message to the relay device includes: The proximal device sends a frequency band activation message to the relay device with a specified identification code in the frequency band licensing information.

6. A frequency band licensing method for a distributed antenna system, the distributed antenna system comprising a proximal device, one or more relay devices connected to the proximal device, and one or more distal devices connected to each relay device, characterized in that, The frequency band licensing method includes: The relay device obtains an activation code for a frequency band to be authorized and obtains frequency band licensing information according to the activation code; The relay device notifies the distal device connected thereto to activate a radio frequency link corresponding to the frequency band information in the frequency band licensing information.

7. A frequency band licensing method for a distributed antenna system, the distributed antenna system comprising a network management center and one or more sets of distributed antenna devices, each set of distributed antenna devices comprising a proximal device and one or more distal devices, the distal devices being connected to the proximal device, characterized in that, The frequency band licensing method includes: The network management center obtains the identification code of the distributed antenna device and the activation code of the frequency band to be authorized in the distributed antenna device identified by the identification code of the distributed antenna device; The network management center sends a first activation message to the distributed antenna device with a specified identification code, and the first activation message includes the activation code of the frequency band to be authorized. The proximal device of the distributed antenna device receives the first activation message and obtains the activation code of the to-be-authorized frequency band from the first activation message; The proximal device of the distributed antenna device activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the to-be-authorized frequency band.

8. The frequency band licensing method according to claim 7, characterized in that Further included: The gateway center also obtains the license period of the to-be-authorized frequency band; The first activation message further includes the license period of the to-be-authorized frequency band; The proximal device of the distributed antenna device receives the first activation message and obtains the activation code of the to-be-authorized frequency band and the license period of the frequency band from the first activation message; The proximal device of the distributed antenna device activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the to-be-authorized frequency band; and sends a corresponding prompt message when approaching the license period of the frequency band.

9. A distributed antenna system, characterized in that, Comprising a proximal device and one or more remote devices, the remote devices are connected to the proximal device; The proximal device obtains the activation code of a to-be-authorized frequency band; obtains the frequency band license information according to the activation code; notifies the remote device to activate the radio frequency link corresponding to the frequency band information in the frequency band license information.

10. A distributed antenna system, characterized in that, Comprising a proximal device, one or more relay devices connected to the proximal device, and one or more remote devices connected to each relay device; The relay device obtains the activation code of the to-be-authorized frequency band, and obtains the frequency band license information according to the activation code; notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information in the frequency band license information.

11. A distributed antenna system, characterized in that, Comprising a network management center and one or more sets of distributed antenna devices, each set of distributed antenna devices includes a proximal device and one or more remote devices, and the remote devices are connected to the proximal device; The network management center obtains the identification code of the distributed antenna device and the activation code of the to-be-authorized frequency band in the distributed antenna device identified by the identification code of the distributed antenna device; sends a first activation message to the distributed antenna device with the specified identification code, and the first activation message includes the activation code of the to-be-authorized frequency band; The proximal device of the distributed antenna device receives the first activation message, obtains the activation code of the to-be-authorized frequency band from the first activation message; activates the radio frequency link corresponding to the frequency band information in the distributed antenna device according to the activation code of the to-be-authorized frequency band.

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