A distributed antenna system and its frequency band licensing method

Abstract

The application provides a distributed antenna system and a frequency band permission method thereof. The distributed antenna system comprises a near-end device and one or more remote-end devices connected to the near-end device. The frequency band permission method comprises the following steps: the near-end device acquires an activation code of a to-be-authorized frequency band, acquires frequency band permission information according to the activation code, and informs the remote-end device to activate a radio frequency link corresponding to frequency band information in the frequency band permission information. The application realizes the frequency band permission function of the distributed antenna system, meets the requirement of selectively opening part of the frequency bands by the customer, and reduces the initial operation cost of the operator.

Description

Technical Field

[0001] This invention relates to the field of communications, and more particularly to a distributed antenna system and its frequency band licensing method. Background Technology

[0002] Indoor wireless signal coverage refers to coverage methods for indoor locations such as residential buildings, subways, airports, stadiums, hotels, and shopping malls. With the widespread adoption of 5G technology, approximately 85% of traffic will occur indoors, and the quality of indoor wireless signal coverage directly impacts the user experience of 5G indoor applications. However, due to the low penetration and susceptibility to interference of 5G millimeter waves during spatial transmission, and the numerous obstructions, strong interference, and complex environments indoors, outdoor base station coverage solutions are less effective. Therefore, a mobile communication network known as a distributed antenna system can be constructed for indoor wireless coverage.

[0003] Distributed antenna systems typically consist of multiple spatially separated antenna nodes or components, transmitting signals from a signal source to a remote location in a tiered manner through various signal transmission media. Distributed antenna systems usually have a multi-tiered architecture, including one near-end device and multiple far-end devices. The near-end device acquires radio frequency (RF) signals from signal sources such as base stations and transmits these signals to the far-end devices via optical fiber. The far-end devices are located in areas where signal coverage needs to be expanded or enhanced to communicate directly with users' mobile terminals.

[0004] Distributed antenna systems support multiple frequency bands in hardware, but in order to reduce early operating costs, some operators only need some frequency bands initially, and then expand the frequency bands as the market matures or expands. Therefore, a frequency band licensing method for distributed antenna systems is needed, which selectively opens up some frequency bands and locks other frequency bands supported by the product hardware. If customers need them later, they can purchase licenses for other frequency bands and then activate the corresponding frequency bands. Summary of the Invention

[0005] The purpose of this invention is to provide a distributed antenna system and its frequency band licensing method, which enables the frequency band licensing function of the distributed antenna system and meets the customer's need to selectively open up certain frequency bands.

[0006] The technical solution provided by this invention is as follows:

[0007] A frequency band licensing method for a distributed antenna system, the distributed antenna system including a near-end device and one or more far-end devices, the far-end devices being connected to the near-end device, the frequency band licensing method comprising:

[0008] The near-end device obtains an activation code for a frequency band to be authorized;

[0009] The near-end device obtains frequency band licensing information based on the activation code;

[0010] The near-end device notifies the far-end device to activate the radio frequency link corresponding to the frequency band information in the frequency band licensing information.

[0011] In some embodiments, the distributed antenna system further includes one or more relay devices connected to the near-end device, and the far-end device connected to the near-end device via the relay device;

[0012] The activation code is encrypted text containing the frequency band licensing information;

[0013] The near-end device obtains the frequency band licensing information by decrypting the activation code;

[0014] The near-end device sends a frequency band activation message to the relay device, the frequency band activation message containing frequency band information from the frequency band licensing information;

[0015] In response to the frequency band activation message, the relay device notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information.

[0016] In some embodiments, the band activation message further includes an activation code type;

[0017] The relay device notifying the connected remote device to activate the radio frequency link corresponding to the frequency band information includes:

[0018] If the activation code type is a standard version, the relay device notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information;

[0019] If the activation code type is professional version, the relay device notifies the remote device connected to it to activate the radio frequency link and maintenance link corresponding to the frequency band information.

[0020] In some embodiments, the frequency band licensing information also includes the number of remote devices;

[0021] The frequency band activation message also includes the number of remote devices in the frequency band licensing information;

[0022] The relay device notifying the remote devices connected to it to activate the radio frequency link corresponding to the frequency band information includes: the relay device notifying up to a number of remote devices connected to it to activate the radio frequency link corresponding to the frequency band information.

[0023] In some embodiments, the frequency band licensing information further includes the identification codes of one or more relay devices;

[0024] The near-end device sending a frequency band activation message to the relay device includes: the near-end device sending a frequency band activation message to the relay device that specifies the identification code in the frequency band licensing information.

[0025] The present invention also provides a frequency band licensing method for a distributed antenna system, the distributed antenna system including a near-end device, one or more relay devices connected to the near-end device, and one or more far-end devices connected to each relay device, the frequency band licensing method comprising:

[0026] The relay device obtains the activation code for the frequency band to be authorized, and obtains the frequency band licensing information based on the activation code;

[0027] The relay device notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information in the frequency band licensing information.

[0028] The present invention also provides a frequency band licensing method for a distributed antenna system, the distributed antenna system including a network management center and one or more sets of distributed antenna devices, each set of distributed antenna devices including a near-end device and one or more far-end devices, the far-end devices being connected to the near-end devices, the frequency band licensing method including:

[0029] The network management center obtains the identification code of the distributed antenna device and the activation code of the unauthorized frequency band in the distributed antenna device identified by the identification code of the distributed antenna device;

[0030] The network management center sends a first activation message to the distributed antenna device with a specified identification code, the first activation message including the activation code for the frequency band to be authorized;

[0031] 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;

[0032] The near-end device of the distributed antenna device activates the radio frequency link in the distributed antenna device corresponding to the frequency band information according to the activation code of the unlicensed frequency band.

[0033] In some embodiments, it also includes:

[0034] The gateway center also obtains the license period for the frequency band to be authorized;

[0035] The first activation message also includes the license period for the frequency band to be authorized;

[0036] 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 and the license period of the frequency band from the first activation message;

[0037] The near-end 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 licensed; and issues a corresponding prompt message when the license period of the frequency band is approaching.

[0038] The present invention also provides a distributed antenna system, including a near-end device and one or more far-end devices, wherein the far-end devices are connected to the near-end device;

[0039] The near-end device obtains an activation code for a frequency band to be authorized; obtains frequency band licensing information based on the activation code; and notifies the far-end device to activate the radio frequency link corresponding to the frequency band information in the frequency band licensing information.

[0040] The present invention also provides a distributed antenna system, including a near-end device, one or more relay devices connected to the near-end device, and one or more far-end devices connected to each relay device;

[0041] The relay device acquires the frequency band information to be authorized and notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information.

[0042] The present invention also provides a distributed antenna system, including a network management center and one or more distributed antenna devices, each distributed antenna device including a near-end device and one or more far-end devices;

[0043] The network management center obtains the identification code of the distributed antenna device and the activation code of the unlicensed frequency band in the distributed antenna device identified by the identification code; 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 unlicensed frequency band.

[0044] The near-end device of the distributed antenna device receives the first activation message, obtains the activation code of the unlicensed frequency band from the first activation message, and activates the radio frequency link in the distributed antenna device corresponding to the frequency band information according to the activation code of the unlicensed frequency band.

[0045] Compared with the prior art, the distributed antenna system and frequency band licensing method provided by the present invention can bring at least the following beneficial effects:

[0046] This invention implements frequency band licensing functionality for distributed antenna systems, meeting customers' needs for selectively opening up certain frequency bands to reduce operators' initial operating costs. This invention provides multiple frequency band licensing methods: activation of the unlicensed frequency band can be performed at the site via near-end equipment or relay equipment, or remotely through the network management center without visiting the site. No restarting or modification of the hardware of deployed equipment is required. Once activated, the corresponding radio frequency signal can be output immediately, without affecting the use of existing network equipment, making it fast and efficient. Attached Figure Description

[0047] The preferred embodiments will now be described in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the distributed antenna system and its frequency band licensing method.

[0048] Figure 1 This is a flowchart of an embodiment of the frequency band licensing method for the distributed antenna system of the present invention;

[0049] Figure 2 This is a flowchart of another embodiment of the frequency band licensing method for the distributed antenna system of the present invention;

[0050] Figure 3 This is a flowchart of another embodiment of the frequency band licensing method for the distributed antenna system of the present invention;

[0051] Figure 4 This is a flowchart of another embodiment of the frequency band licensing method for the distributed antenna system of the present invention;

[0052] Figure 5 This is a schematic diagram of the structure of one embodiment of the distributed antenna system of the present invention;

[0053] Figure 6 This is a schematic diagram of another embodiment of the distributed antenna system of the present invention;

[0054] Figure 7 This is a schematic diagram of another embodiment of the distributed antenna system of the present invention. Detailed Implementation

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0056] To keep the drawings concise, only the parts relevant to the invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of components with the same structure or function is shown schematically, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one".

[0057] As mentioned earlier, distributed antenna systems typically support multiple frequency bands in hardware, but some operators initially use only a few frequency bands and then expand the frequency range after the market matures. Therefore, this invention provides a frequency band licensing method for distributed antenna systems.

[0058] In one embodiment of the present invention, such as Figure 1 As shown, a frequency band licensing method for a distributed antenna system includes:

[0059] Step S10: The near-end device obtains an activation code for a frequency band to be authorized;

[0060] Step S20: The near-end device obtains frequency band licensing information based on the activation code;

[0061] Step S30: The near-end device notifies the far-end device to activate the radio frequency link corresponding to the frequency band information in the frequency band licensing information.

[0062] Specifically, a distributed antenna system includes a near-end device (PBMU) and one or more far-end devices (IRUs) connected to the near-end device. The near-end device can be connected to the far-end device via optical fiber.

[0063] Activation codes are generally used to verify a user's legitimacy. In this invention, activation codes are used to ensure that legitimate users can use the system's frequency band resources within a reasonable scope. For example, if a user purchases product A on frequency band B, the corresponding activation code can only be used to activate the resources of product A on frequency band B for that user.

[0064] The activation code is generated by the equipment manufacturer according to certain rules. The equipment manufacturer generates the corresponding activation code based on the frequency band resources purchased by the user, and then sends the activation code to the user. The user uses the activation code to activate the corresponding frequency band resources of the purchased product. In this embodiment, the user can input the activation code for the frequency band to be authorized through the web interface of the near-end device, and then authorize activation. After receiving the instruction, the near-end device automatically activates the corresponding frequency band resources using the method provided in this embodiment.

[0065] The activation code contains frequency band licensing information, which in turn contains information about the frequency bands to be licensed. Generally, the activation code is encrypted form of the frequency band licensing information; that is, the frequency band licensing information is encrypted to obtain the activation code. To retrieve the frequency band licensing information from the activation code, it must first be decrypted.

[0066] The PBMU obtains the frequency band licensing information from the activation code, and then activates the RF links of the licensed frequency bands in the IRU and shuts down the RF links of the unlicensed frequency bands according to the frequency band licensing information; or the PBMU notifies the IRU of the frequency band licensing information, and the IRU activates the RF links of the licensed frequency bands and shuts down the RF links of the unlicensed frequency bands.

[0067] This embodiment provides a method for activating unlicensed frequency bands through a near-end device. It can activate frequency bands with purchased licenses locally, realizing the frequency band licensing function of a distributed antenna system and meeting the customer's need to selectively open up some frequency bands.

[0068] In another embodiment of the invention, such as Figure 2 As shown, a frequency band licensing method for a distributed antenna system includes:

[0069] A distributed antenna system includes a near-end device (PBMU), one or more relay devices (NEU) connected to the near-end device, and one or more far-end devices (IRU) connected to each relay device.

[0070] Step S100: The near-end device obtains an activation code for a frequency band to be authorized. The activation code is encrypted text containing frequency band licensing information.

[0071] In step S200, the near-end device decrypts the activation code to obtain frequency band licensing information;

[0072] In step S300, the near-end device sends a frequency band activation message to the relay device. The frequency band activation message contains frequency band information from the frequency band licensing information.

[0073] In step S400, in response to the band activation message, the relay device notifies the remote device connected to it to activate the radio frequency link corresponding to the band information.

[0074] Specifically, near-end devices can be connected to relay devices via optical fibers, and relay devices can in turn be connected to far-end devices via optical fibers. Near-end devices acquire radio frequency signals from signal sources such as base stations and transmit the acquired radio frequency signals to far-end devices through relay devices, thereby enhancing signal coverage.

[0075] In the PBMU-NEU-IRU system architecture, the frequency band licensing information is managed uniformly by the PBMU. The PBMU sends the frequency band licensing information to the NEU, and the NEU activates the radio frequency links of the licensed frequency bands in the IRU and shuts down the radio frequency links of the unlicensed frequency bands in the IRU according to the frequency band licensing information.

[0076] Each PBMU has a unique license for each band. Bands can be uniquely identified based on band information, such as by using a band number. Band licensing information can include only the bands to be licensed, or it can be bound to the band information and the identification code of the near-end device, indicating that the specified band information can only be activated within the distributed antenna system identified by the near-end device with the specified identification code. This means that all IRUs in the system corresponding to the specified band information can be activated.

[0077] The device identification code can be the device serial number (SN), the identification number of an important component in the device, or a combination of the identification numbers of multiple important components in the device, as long as the serial number (SN), identification number, or combination of identification numbers can uniquely identify the device.

[0078] Frequency band licensing information is used to generate corresponding activation codes through encryption algorithms. For example, if the plaintext information is frequency band A and the PBMU identifier, the activation code for frequency band A of this system can be obtained through encryption algorithms. Encryption algorithms can be selected from existing technologies as needed.

[0079] Users can input the activation code for the frequency band to be authorized via the web interface of the near-end device, or input a license file. The PBMU extracts the frequency band activation code from the license file. After obtaining the frequency band activation code, the near-end device decrypts it to obtain the corresponding plaintext information, from which it retrieves the frequency band licensing information. For example, the frequency band licensing information includes frequency band information and the near-end device's identification code. If decryption fails, the activation code is invalid. If decryption succeeds, the near-end device can further check whether the near-end device's identification code in the frequency band licensing information matches its own identification code. If they do not match, the obtained activation code cannot be used for this distributed antenna system. If they match, the near-end device sends the specified frequency band information to the relay device via frequency band activation information. 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 then enables the RF link corresponding to the specified frequency band information. In practice, an RF switch can be used to activate / deactivate the corresponding RF link by turning the RF switch on / off.

[0080] In the above scheme, the signal terminals of the near-end equipment and the relay equipment can output normally. For inactive frequency bands, the RF switch on the remote IRU is turned off, and for active frequency bands, the RF switch on the remote IRU is turned on. In other embodiments, the signal of inactive frequency bands can also be turned off on the near-end equipment. This achieves the effect of shutting down the RF link of the relevant frequency bands without turning off the signal on the remote equipment.

[0081] Users can check the authorization status of frequency bands on the web interface of the near-end device. The web interface can display all frequency bands supported by the system. Authorized and unauthorized frequency bands can be distinguished by different colors or text; or only authorized frequency bands can be displayed.

[0082] Users can authorize a band by adding a band activation code or a band license file on the web interface of the near-end device. Each authorization operation is performed on only one band, and multiple authorization operations are required for multiple bands on the same PBMU.

[0083] When a Band channel is not authorized, its related monitoring data will be blocked and not displayed.

[0084] In one embodiment, the frequency band activation code is divided into a professional version and a standard version. The standard version activation code only activates the radio frequency link, while the professional version activation code activates both the radio frequency link and the maintenance link of the frequency band. The maintenance link is used to report relevant parameters of the frequency band to the network management center for users to adjust. For example, if the relevant parameters of the frequency band are transmitted by an optical link, then activating the optical link is equivalent to activating the maintenance link.

[0085] Step S300 includes: Step S310 The near-end device identifies the type of activation code, and the frequency band activation message sent to the relay device contains the frequency band information to be authorized and the activation code type.

[0086] 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.

[0087] In one embodiment, the frequency band licensing information also includes the number of remote devices. The number of remote devices can be expressed directly as a quantity; for example, if a user initially purchases only 10 IRUs, then 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 terms of levels, such as Class I (10 IRUs), Class II (20 IRUs), etc.

[0088] Specifically, step S300 includes: step S320 whereby the near-end device sends a frequency band activation message to the relay device, the frequency band activation message containing information on the frequency band to be authorized and the number of remote devices.

[0089] Step S400 includes: Step S420 The relay device notifies up to a number of remote devices connected to it to activate the radio frequency link corresponding to the frequency band information.

[0090] This method limits the activation of radio frequency links in a specified frequency band for a specified number of remote devices. This allows for different selling prices to be applied to different numbers of remote devices, even when activating the same frequency band.

[0091] In one embodiment, the frequency band licensing information also includes the identification codes of one or more remote devices.

[0092] Specifically, step S300 includes: step S330 whereby the near-end device sends a frequency band activation message to the relay device, the frequency band activation message containing information about the frequency band to be authorized and the identification codes of one or more remote devices.

[0093] Step S400 includes: Step S430 The relay device notifies all remote devices with the same identifier code as the remote device in the frequency band activation message to activate the radio frequency link corresponding to the frequency band information.

[0094] This method activates only the radio frequency link on remote devices with the specified identifier code. It can also be achieved in this way, activating the same frequency band, but different prices can be applied to different numbers of remote devices.

[0095] This method binds the IRU's identification code. When the optical port where the IRU with the bound identification code is located is abnormal, it can be connected to other idle optical ports to continue working.

[0096] In one embodiment, the frequency band licensing information also includes one or more optical port numbers for connecting remote devices.

[0097] Specifically, step S300 includes: step S340 whereby the near-end device sends a frequency band activation message to the relay device, the frequency band activation message containing information about the frequency band to be authorized and one or more optical port numbers for connecting to the remote device.

[0098] Step S400 includes: Step S440 The relay device notifies the remote device connected to the optical port indicated by the optical port number in the frequency band activation message to activate the radio frequency link corresponding to the frequency band information.

[0099] This activation code is bound to an optical port number, and only remote devices under the specified optical port number can activate the corresponding frequency band. When an IRU under the specified optical port fails, a new IRU can be directly replaced on the original optical port to continue working without reactivation.

[0100] In one embodiment, the frequency band licensing information also includes the identification codes of one or more relay devices.

[0101] Specifically, step S300 includes: step S350 whereby the near-end device sends a frequency band activation message to the relay device that specifies the identification code in the frequency band licensing information.

[0102] In this method, the activation code is bound to the relay device's identification code. Only remote devices connected to relay devices with the specified identification code can activate the radio frequency link in the specified frequency band.

[0103] This method allows remote devices under different relay equipment to activate different frequency bands. For example, a distributed antenna system has one PBMU (PBU Unit) that operates across the entire frequency band, and two NEUs (Neuers). The IRU (In-Receipt Unit) under NEU1 activates the N77 frequency band, while the IRU under NEU2 activates the B20 frequency band. In this case, two activation codes are needed: one derived from the N77 frequency band, the NEU1 identifier, and the PBMU identifier; and the other derived from the B20 frequency band, the NEU2 identifier, and the PBMU identifier. Activating these two activation codes on the PBMUs respectively will achieve the above requirement.

[0104] In one embodiment, the frequency band licensing information also includes the number of optical ports connected to the remote device.

[0105] Specifically, step S300 includes: step S360 whereby the near-end device sends a frequency band activation message to the relay device, the frequency band activation message containing information about the frequency band to be authorized and the number of optical ports connected to the remote device.

[0106] Step S400 includes: Step S460 The relay device notifies the remote device under the optical ports not exceeding the number of optical ports connected to the remote device to activate the radio frequency link corresponding to the frequency band information.

[0107] This method controls the number of remote devices that are active in a frequency band by controlling the number of optical ports connected to the remote devices.

[0108] In one embodiment, the frequency band licensing information may also include the number of relay devices or the number of optical ports connected to the relay devices.

[0109] Based on the frequency band licensing information, the near-end device controls a specified number of relay devices to receive the frequency band activation message, or controls a specified number of relay devices with specified optical ports to receive the frequency band activation message.

[0110] 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, thus meeting the needs of diverse customers. During frequency band activation, there is no need to restart or modify the hardware of deployed devices; radio frequency signals are output immediately after activation, without affecting the use of devices already on the network. The activation operation is simple, fast, and efficient.

[0111] In another embodiment of the invention, such as Figure 3 As shown, a frequency band licensing method for a distributed antenna system includes:

[0112] In step S101, the relay device obtains the activation code for the frequency band to be authorized and obtains the frequency band license information based on the activation code.

[0113] In step S201, the relay device notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information in the frequency band licensing information.

[0114] Specifically, the distributed antenna system includes a near-end device (PBMU), one or more relay devices (NEU) connected to the near-end device, and one or more far-end devices (IRU) connected to each relay device.

[0115] At the relay device end, directly enter the activation code for the frequency band to be authorized. The relay device obtains the frequency band licensing information based on the activation code, which includes the frequency band information to be authorized. The relay device then notifies the remote device connected to it to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0116] The remote device supports RF links in all frequency bands, which are disabled by default. The remote device will then activate the corresponding RF link upon receiving activation information from the relay device.

[0117] To activate multiple frequency bands, multiple activation operations can be performed, activating one band at a time. Alternatively, multiple frequency band information can be entered at once, and the relay device will sequentially activate the corresponding frequency band radio frequency links of the remote devices.

[0118] This allows users to directly authorize and query the authorization status of bands on the relay device.

[0119] In one embodiment, step S101 includes: in step S111, the relay device obtains the activation code of the frequency band to be authorized, and obtains the frequency band licensing information and activation code type according to the activation code; the frequency band licensing information includes the frequency band information to be authorized.

[0120] 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.

[0121] In one embodiment, step S101 includes: step S121 where the relay device obtains the activation code for the frequency band to be authorized, and obtains the frequency band licensing information based on the activation code. The frequency band licensing information includes the frequency band information to be authorized and the number of remote devices.

[0122] Step S201 includes: Step S221 The relay device notifies up to a number of remote devices connected to it to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0123] In one embodiment, step S101 includes: step S131 where the relay device obtains the activation code of the frequency band to be authorized, and obtains the frequency band licensing information based on the activation code. The frequency band licensing information includes the frequency band information to be authorized and the identification code of one or more remote devices.

[0124] Step S201 includes: Step S231 The relay device notifies all remote devices with specified identification codes to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0125] In one embodiment, step S101 includes: step S141 where the relay device obtains the activation code of the frequency band to be authorized, and obtains the frequency band license information based on the activation code. The frequency band license information includes the frequency band information to be authorized and one or more optical port numbers for connecting remote devices.

[0126] Step S201 includes: Step S241 The relay device notifies 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.

[0127] In one embodiment, step S101 includes: step S151 where the relay device obtains the activation code for the frequency band to be authorized, and obtains the frequency band license information based on the activation code. The frequency band license information includes the frequency band information to be authorized and the number of optical ports connected to the remote device.

[0128] Step S201 includes: Step S251 The relay device notifies the remote device under the specified number of optical ports to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0129] This embodiment provides a method for frequency band licensing via relay equipment, which can activate frequency bands with purchased licenses at the relay equipment end. Frequency band activation does not require restarting or modifying the hardware of deployed equipment; radio frequency signals are output immediately after activation, without affecting the use of devices already on the network. The activation operation is simple, fast, and efficient.

[0130] In another embodiment of the invention, such as Figure 4 As shown, a frequency band licensing method for a distributed antenna system includes:

[0131] In 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 licensed in the distributed antenna device identified by the identification code. The activation code is encrypted text containing frequency band licensing information. The frequency band licensing information includes frequency band information and the identification code of the near-end device of the distributed antenna device.

[0132] In step S2000, the network management center sends a first activation message to the distributed antenna device with the specified identification code. The first activation message includes the activation code for the frequency band to be authorized.

[0133] 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;

[0134] Step S4000: The near-end 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.

[0135] Specifically, 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, one or more relay devices connected to the near-end device, and one or more far-end 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.

[0136] The identification code of a distributed antenna device is used to uniquely identify the distributed antenna device. It can be the identification code of its important components, such as the identification code of the near-end equipment, or it can be determined independently.

[0137] Step S4000 can employ the frequency band licensing method via a near-end device as described in the foregoing embodiments.

[0138] Users can check the frequency band authorization status through the network management center and authorize frequency bands by adding a frequency band license.

[0139] In one embodiment, step S1000 includes: step S1100 the gateway center also obtains the license period for the frequency band to be authorized.

[0140] 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.

[0141] Step S3000 includes: Step S3100 The near-end device of the distributed antenna device receives a first activation message and obtains the activation code of the frequency band to be licensed and the license period of the frequency band from the first activation message.

[0142] Step S4000 includes: Step S4100 The near-end 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 licensed, 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 has expired.

[0143] This embodiment provides a method for frequency band licensing through a network management center, which can remotely activate frequency bands with purchased licenses and set the license period. Frequency band activation does not affect devices currently running on the network, and requires no restarting or hardware changes to deployed devices. The activation operation is simple, fast, and efficient. The user is notified when the frequency band license period is about to expire.

[0144] In one embodiment of the present invention, such as Figure 5 As shown, a distributed antenna system 100 includes:

[0145] A near-end device 10 and one or more far-end devices 30 connected to the near-end device 10.

[0146] The near-end device 10 is used to obtain an activation code for a frequency band to be authorized, obtain frequency band licensing information based on the activation code, and notify the remote device to activate the radio frequency link corresponding to the frequency band information in the frequency band licensing information.

[0147] Remote device 30 is used to activate the radio frequency link corresponding to the frequency band information in the frequency band licensing information.

[0148] In this embodiment, by activating the unlicensed frequency band through a near-end device, the frequency band with a purchased license can be activated locally, realizing the frequency band licensing function of the distributed antenna system and meeting the customer's need to selectively open up some frequency bands.

[0149] In another embodiment of the invention, such as Figure 6 As shown, a distributed antenna system 100 includes:

[0150] A near-end device 10, one or more relay devices 20 connected to the near-end device 10, and one or more remote devices 30 connected to each relay device 20.

[0151] The near-end device 10 is used to obtain an activation code for a frequency band to be licensed, which is ciphertext containing frequency band licensing information; decrypt the activation code to obtain the frequency band licensing information; and send a frequency band activation message to the relay device, which contains the frequency band information in the frequency band licensing information.

[0152] The relay device 20 is used to respond to the frequency band activation message and notify the remote device connected to it to activate the radio frequency link corresponding to the frequency band information.

[0153] Remote device 30 is used to activate the radio frequency link corresponding to the frequency band information.

[0154] In one embodiment, the activation code for the frequency band is divided into a professional version and a standard version. The standard version activation code only activates the radio frequency link, while the professional version activation code activates both the radio frequency link and the maintenance link of the frequency band.

[0155] The near-end device 10 is also used to send a frequency band activation message to the relay device. The frequency band activation message contains information about the frequency band to be authorized and the activation code type.

[0156] The relay device 20 is also used to notify 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, it is also used to notify the remote device connected to it to activate the maintenance link corresponding to the frequency band information.

[0157] In one embodiment, the frequency band licensing information also includes the number of remote devices.

[0158] The near-end device 10 is also used to send a frequency band activation message to the relay device. The frequency band activation message contains information about the frequency band to be authorized and the number of remote devices.

[0159] The relay device 20 is also used to notify up to a number of remote devices connected to it to activate the radio frequency link corresponding to the frequency band information.

[0160] In one embodiment, the frequency band licensing information also includes the identification codes of one or more remote devices.

[0161] The near-end device 10 is also used to send a frequency band activation message to the relay device. The frequency band activation message contains information about the frequency band to be authorized and the identification code of one or more remote devices.

[0162] The relay device 20 is also used to notify all remote devices with the same identification code as the remote device contained in the frequency band activation message to activate the radio frequency link corresponding to the frequency band information.

[0163] In one embodiment, the frequency band licensing information also includes one or more optical port numbers for connecting remote devices.

[0164] The near-end device 10 is also used to send a frequency band activation message to the relay device. The frequency band activation message contains information about the frequency band to be authorized and one or more optical port numbers for connecting to the remote device.

[0165] The repeater device 20 is also used to notify remote devices connected to the optical port indicated by the optical port number in the frequency band activation message to activate the radio frequency link corresponding to the frequency band information.

[0166] In one embodiment, the frequency band licensing information also includes the identification codes of one or more relay devices.

[0167] The near-end device 10 is also used to send a frequency band activation message to a relay device that specifies the identification code in the frequency band licensing information.

[0168] In one embodiment, the frequency band licensing information also includes the number of optical ports connected to the remote device.

[0169] The near-end device 10 is also used to send a frequency band activation message to the relay device. The frequency band activation message contains information about the frequency band to be authorized and the number of optical ports connected to the remote device.

[0170] The repeater device 20 is also used to notify remote devices with no more than the number of optical ports connected to the remote device to activate the radio frequency link corresponding to the frequency band information.

[0171] In one embodiment, the frequency band licensing information may also include the number of relay devices or the number of optical ports connected to the relay devices.

[0172] The near-end device 10 is also used to control a specified number of relay devices to receive a frequency band activation message, or to control a specified number of relay devices with a specified optical port to receive a frequency band activation message, based on the frequency band licensing information.

[0173] In another embodiment of the invention, such as Figure 6 As shown, a distributed antenna system 100 includes:

[0174] It 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.

[0175] The relay device 10 is used to obtain the activation code of the frequency band to be authorized, and obtain the frequency band license information based on the activation code; and to notify the remote device connected to it to activate the radio frequency link corresponding to the frequency band information in the frequency band license information.

[0176] In one embodiment, the relay device 10 is further configured to obtain the activation code of the frequency band to be authorized, and obtain the 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; 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.

[0177] In one embodiment, the relay device 10 is further configured to obtain the activation code of the frequency band to be authorized, and obtain the frequency band licensing information based on the activation code. The frequency band licensing information includes the frequency band information to be authorized and the number of remote devices; and notify the remote devices connected to it, not exceeding the number of remote devices, to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0178] In one embodiment, the relay device 10 is further configured to obtain the activation code of the frequency band to be authorized, and obtain the frequency band licensing information based on the activation code. The frequency band licensing information includes the frequency band information to be authorized and the identification code of one or more remote devices; and notify all remote devices with the same identification code as the remote device contained in the frequency band activation message 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 configured to obtain the activation code of the frequency band to be authorized, and obtain the frequency band licensing information according to the activation code. The frequency band licensing information includes the frequency band information to be authorized and one or more optical port numbers connected to remote devices; and notify the remote devices 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.

[0180] In one embodiment, the relay device 10 is further configured to obtain the activation code of the frequency band to be authorized, and obtain the frequency band license information based on the activation code. 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 device under the specified number of optical ports to activate the radio frequency link corresponding to the frequency band information to be authorized.

[0181] This embodiment uses a relay device to grant frequency band licenses.

[0182] In another embodiment of the invention, such as Figure 7 As shown, a distributed antenna system includes:

[0183] 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 far-end devices 30 connected to each relay device.

[0184] Network management center 200 is used to obtain the identification code of the distributed antenna device and the activation code of the unlicensed frequency band in the distributed antenna device corresponding to the identification code of the distributed antenna device. The activation code is encrypted text containing frequency band licensing information. The frequency band licensing information includes frequency band information and the identification code of the near-end device of the distributed antenna device. A first activation message is sent to the distributed antenna device with the specified identification code. The first activation message includes the activation code of the unlicensed frequency band.

[0185] The near-end device 10 of the distributed antenna device 300 receives a first activation message, obtains the activation code of the frequency band to be licensed from the first activation message, and activates the radio frequency link in the distributed antenna device corresponding to the frequency band information according to the activation code of the frequency band to be licensed.

[0186] In one embodiment, the network management center 200 is further configured to obtain the identification code of the distributed antenna device, the activation code of the unlicensed frequency band in the distributed antenna device corresponding to the identification code of the distributed antenna device, and the license period of the unlicensed frequency band; 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 unlicensed frequency band and the license period of the frequency band.

[0187] The near-end 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 in the distributed antenna device corresponding to the frequency band information according to the activation code of the frequency band to be authorized, 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 has expired.

[0188] It should be noted that the embodiment of the distributed antenna system provided by this invention and the aforementioned embodiment of the frequency band licensing method for a distributed antenna system are both based on the same inventive concept and can achieve the same technical effects. Therefore, other specific details of the embodiment for the distributed antenna system can be found in the description of the aforementioned embodiment of the frequency band licensing method for a distributed antenna system.

[0189] 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 for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A frequency band license method of a distributed antenna system, the distributed antenna system comprising a headend device, one or more relay devices and one or more remote devices, the relay devices being connected to the headend device, the remote devices being connected to the headend device through the relay devices, characterized in that, The frequency band permission method comprises: The near-end device acquires an activation code of a frequency band to be authorized; The near-end device acquires frequency band permission information according to the activation code; The near-end device sends a frequency band activation message to the relay device, and the frequency band activation message contains frequency band information in the frequency band permission information and an activation code type; In response to the frequency band activation message, the relay device informs the remote devices connected thereto to activate a radio frequency link corresponding to the frequency band information, comprising: If the activation code type is a normal version, the relay device informs the remote devices connected thereto to activate the radio frequency link corresponding to the frequency band information; If the activation code type is a professional version, the relay device informs the remote devices connected thereto to activate the radio frequency link and a maintenance link corresponding to the frequency band information.

2. The frequency band permission method according to claim 1, wherein The activation code is ciphertext containing the frequency band permission information; The near-end device acquires the frequency band permission information by decrypting the activation code.

3. The frequency band permission method according to claim 1, wherein The frequency band permission information further comprises a number of remote devices; The frequency band activation message further contains the number of remote devices in the frequency band permission information; The relay device informs the remote devices connected thereto to activate the radio frequency link corresponding to the frequency band information, comprising: The relay device informs the remote devices connected thereto not exceeding the number of remote devices to activate the radio frequency link corresponding to the frequency band information.

4. The frequency band permission method according to claim 1, wherein The frequency band permission information further comprises an identification code of one or more relay devices; The near-end device sends the frequency band activation message to the relay device, comprising: The near-end device sends the frequency band activation message to the relay device with the specified identification code in the frequency band permission information.

5. A frequency band licensing method for a distributed antenna system, the distributed antenna system comprising a headend device, one or more relay devices connected to the headend device, and one or more remote devices connected to each relay device, the method comprising: The frequency band permission method comprises: ​ The relay device acquires an activation code of a frequency band to be authorized, and acquires frequency band permission information and an activation code type according to the activation code; The relay device informs the remote devices connected thereto to activate a radio frequency link corresponding to frequency band information in the frequency band permission information, comprising: If the activation code type is a normal version, the relay device informs the remote devices connected thereto to activate the radio frequency link corresponding to the frequency band information; If the activation code type is a professional version, the relay device informs the remote devices connected thereto to activate the radio frequency link and a maintenance link corresponding to the frequency band information.

6. A frequency band license method of 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 headend device, one or more relay devices and one or more remote devices, the relay devices being connected to the headend device, the remote devices being connected to the headend device through the relay devices, characterized in that, The frequency band permission method comprises: The network management center acquires 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; The network management center sends a first activation message to the distributed antenna device with the specified identification code, and the first activation message comprises the activation code of the frequency band to be authorized; The near-end device of the distributed antenna device receives the first activation message and acquires the activation code of the frequency band to be authorized from the first activation message; The near-end device of the distributed antenna device acquires frequency band permission information according to the activation code; The network management center sends a first activation message to the distributed antenna device with the specified identification code, and the first activation message comprises the activation code of the frequency band to be authorized; The near-end device of the distributed antenna device receives the first activation message and acquires the activation code of the frequency band to be authorized from the first activation message; The near-end device of the distributed antenna device acquires frequency band permission information according to the activation code; The near-end device sends a frequency band activation message to the relay device, the frequency band activation message containing frequency band information in the frequency band license information and an activation code type; In response to the frequency band activation message, the relay device informs the remote devices connected thereto to activate a radio frequency link corresponding to the frequency band information, including: If the activation code type is a normal version, the relay device informs the remote devices connected thereto to activate a radio frequency link corresponding to the frequency band information; If the activation code type is a professional version, the relay device informs the remote devices connected thereto to activate a radio frequency link and a maintenance link corresponding to the frequency band information.

7. The frequency band permission method of claim 6, wherein, Further comprising: The network management center also acquires a license period of the to-be-licensed frequency band; The first activation message further includes the license period of the to-be-licensed frequency band; The near-end device of the distributed antenna device also acquires the license period of the frequency band from the first activation message; The near-end device of the distributed antenna device issues a corresponding prompt message when approaching the license period of the frequency band.

8. A distributed antenna system, comprising: The system comprises a near-end device, one or more relay devices and one or more remote devices, the relay devices are connected to the near-end device, and the remote devices are connected to the near-end device through the relay devices; The near-end device acquires an activation code of a to-be-licensed frequency band, acquires frequency band license information according to the activation code, and sends a frequency band activation message to the relay device, the frequency band activation message containing frequency band information in the frequency band license information and an activation code type; In response to the frequency band activation message, if the activation code type is a normal version, the relay device informs the remote devices connected thereto to activate a radio frequency link corresponding to the frequency band information; if the activation code type is a professional version, the relay device informs the remote devices connected thereto to activate a radio frequency link and a maintenance link corresponding to the frequency band information.

9. A distributed antenna system, comprising: The system comprises 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 relay device acquires an activation code of a to-be-licensed frequency band, and acquires frequency band license information and an activation code type according to the activation code; if the activation code type is a normal version, the relay device informs the remote devices connected thereto to activate a radio frequency link corresponding to the frequency band information in the frequency band license information; if the activation code type is a professional version, the relay device informs the remote devices connected thereto to activate a radio frequency link and a maintenance link corresponding to the frequency band information.

10. A distributed antenna system, comprising: The system comprises a network management center and one or more sets of distributed antenna devices, each set of distributed antenna devices comprising a near-end device, one or more relay devices and one or more remote devices, the relay devices being connected to the near-end device, and the remote devices being connected to the near-end device through the relay devices; The network management center acquires an identification code of a distributed antenna device and an activation code of a to-be-licensed frequency band 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, the first activation message including the activation code of the to-be-licensed frequency band; The near-end 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, obtains frequency band permission information according to the activation code, and sends a frequency band activation message to the relay device, wherein the frequency band activation message contains frequency band information in the frequency band permission information and an activation code type; The relay device of the distributed antenna device, in response to the frequency band activation message, notifies the far-end device connected thereto to activate a radio frequency link corresponding to the frequency band information if the activation code type is a normal version, and notifies the far-end device connected thereto to activate the radio frequency link and a maintenance link corresponding to the frequency band information if the activation code type is a professional version.

Images