Signal access method and system, storage medium and electronic device

Abstract

The present disclosure relates to the field of wireless communication, in particular to a signal access method, system, storage medium and electronic device. The signal access method comprises: an optical distribution network (ODN) distributing an optical signal sent by an optical line terminal (OLT) to obtain multiple optical signals, and sending the multiple optical signals to an access device (PRAU); the access device (PRAU) converting the multiple optical signals sent by at least two optical distribution networks (ODNs) into multiple combined optical signals, and sending the multiple combined optical signals to multiple remote optical network units (RONUs) respectively; the remote optical network unit (RONU) divides the combined optical signal into a first optical signal and a second optical signal, sends the first optical signal to a radio unit (RU) of the remote optical network unit (RONU) to convert the first optical signal into a wireless signal, and sends the second optical signal to an optical network termination (ONT). The signal access method can reduce the cost of wireless signal coverage.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of wireless communication, in particular to a signal access method, a signal access system, a storage medium and an electronic device. BACKGROUND

[0002] In the field of wireless communication, a wireless coverage of a home or enterprise is generally realized by using an optical modem plus an integrated skin station, or a wireless coverage of an enterprise scene is realized by using an extended skin station.

[0003] However, when solving user complaints and strengthening indoor wireless coverage in residential areas, a device can only cover one household in the original home-level or enterprise-level skin base station, which is too high in cost, low in device resource utilization, and requires a large number of wireless parameters and complex optimization.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0005] The purpose of the present disclosure is to provide a signal access method, a signal access system, a storage medium and an electronic device, which aims to reduce the cost of wireless signal coverage.

[0006] Other characteristics and advantages of the present disclosure will become apparent from the following detailed description, or will be learned by practice of the present disclosure.

[0007] According to an aspect of the embodiment of the present disclosure, a signal access method is provided, comprising: an optical distribution network (ODN) distributing an optical signal sent by an optical line terminal (OLT) to obtain a plurality of optical signals, and sending the plurality of optical signals to an access device (PRAU); the access device (PRAU) converting the plurality of optical signals sent by at least two optical distribution networks (ODNs) into a plurality of combined optical signals, and sending the plurality of combined optical signals to a plurality of remote network units (RONUs) respectively; the remote network unit (RONU) divides the combined optical signal into a first optical signal and a second optical signal, and sends the first optical signal to a radio unit (RU) of the remote network unit (RONU) to convert the first optical signal into a wireless signal, and sends the second optical signal to an optical network terminal (ONT).

[0008] According to some embodiments of the present disclosure, based on the foregoing scheme, the access device PRAU comprises a host unit BBU, an optical network unit ONU and at least one optical combiner; the access device PRAU converts the multi-channel optical signal sent by at least two optical distribution networks ODNs into a multi-channel combined optical signal, comprising: obtaining service data through the optical network unit ONU; performing baseband processing on the service data by using the host unit BBU to obtain a multi-channel baseband optical signal; and combining the multi-channel baseband optical signal with the multi-channel optical signal by using the optical combiner to obtain the multi-channel combined optical signal.

[0009] According to some embodiments of the present disclosure, based on the foregoing scheme, the host unit BBU is further configured to be connected with a 5G extended source.

[0010] According to some embodiments of the present disclosure, based on the foregoing scheme, the user-side device RONU divides the combined optical signal into a first optical signal and a second optical signal, comprising: dividing the combined optical signal by using an optical splitter in the user-side device RONU to obtain the first optical signal and the second optical signal.

[0011] According to some embodiments of the present disclosure, based on the foregoing scheme, when the user-side device RONU comprises the optical network terminal ONT, the sending of the second optical signal to the optical network terminal ONT comprises: sending the second optical signal to the optical network terminal ONT of the user-side device RONU.

[0012] According to some embodiments of the present disclosure, based on the foregoing scheme, when the user-side device RONU does not comprise the optical network terminal ONT, the sending of the second optical signal to the optical network terminal ONT comprises: pre-configuring an ONT / SC optical interface of the user-side device RONU; wherein the ONT / SC optical interface is connected with the optical network terminal ONT; and sending the second optical signal to the ONT / SC optical interface, so as to send the second optical signal to the optical network terminal ONT through the ONT / SC optical interface.

[0013] According to a second aspect of the embodiments of the present disclosure, a signal access system is provided, comprising an optical line terminal (OLT), an optical distribution network (ODN), an access device (PRAU) and a user terminal device (RONU). The OLT is connected with the ODN. At least two ODNs are connected with the PRAU. The PRAU is connected with the RONU. The OLT is configured to send an optical signal to the ODN. The ODN is configured to receive the optical signal sent by the OLT, distribute the optical signal to obtain a plurality of optical signals, and send the plurality of optical signals to the PRAU. The PRAU is configured to receive the plurality of optical signals sent by the ODN, convert the plurality of optical signals into a plurality of combined optical signals, and send the plurality of combined optical signals to a plurality of RONUs, respectively. The RONU is configured to receive the combined optical signal sent by the PRAU, divide the combined optical signal into a first optical signal and a second optical signal, send the first optical signal to a radio unit (RU) of the RONU to convert the first optical signal into a wireless signal, and send the second optical signal to an optical network terminal (ONT).

[0014] According to some embodiments of the present disclosure, based on the foregoing scheme, the PRAU comprises a host unit (BBU), an optical network unit (ONU) and at least one optical combiner.

[0015] According to some embodiments of the present disclosure, based on the foregoing scheme, the BBU comprises a service interface and an optical module interface. The service interface is configured to be connected with a network port of the ONU internally. The optical module interface is configured to be connected with an optical combiner branch interface of the optical combiner internally.

[0016] According to some embodiments of the present disclosure, based on the foregoing scheme, the ONU comprises an ODN / SC optical interface and a network port. The ODN / SC optical interface is configured to be connected with the ODN externally. The network port is configured to be connected with the service interface of the BBU internally.

[0017] According to some embodiments of the present disclosure, based on the foregoing scheme, the optical combiner comprises an ODN / SC optical interface, an RU / SC optical interface and an optical combiner branch interface. The ODN / SC optical interface is configured to be connected with the ODN externally. The RU / SC optical interface is configured to be connected with the PRAU externally. The optical combiner branch interface is configured to be connected with the optical module interface of the BBU internally.

[0018] According to some embodiments of the present disclosure, based on the foregoing scheme, the host unit BBU further comprises a 5G / SC optical interface, which is configured to externally connect a 5G extended source.

[0019] According to some embodiments of the present disclosure, based on the foregoing scheme, the user-side device RONU comprises an optical splitter, the radio frequency unit RU and the optical network terminal ONT.

[0020] According to some embodiments of the present disclosure, based on the foregoing scheme, the optical splitter comprises an AU / SC optical interface, a first branch interface and a second branch interface; the AU / SC optical interface is configured to externally connect the access device PRAU; the first branch interface is configured to internally connect the radio frequency unit RU; and the second branch interface is configured to internally connect the optical network terminal ONT.

[0021] According to some embodiments of the present disclosure, based on the foregoing scheme, the user-side device RONU comprises an optical splitter, the radio frequency unit RU and an ONT / SC optical interface; the ONT / SC optical interface is configured to externally connect the optical network terminal ONT.

[0022] According to a third aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, which stores a computer program. The program is executed by a processor to implement the signal access method in the above embodiments.

[0023] According to a fourth aspect of the embodiments of the present disclosure, an electronic device is provided, which comprises one or more processors, and a storage device configured to store one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the signal access method in the above embodiments.

[0024] The exemplary embodiments of the present disclosure can have the following partial or all beneficial effects:

[0025] In the technical solution provided in some embodiments of the present disclosure, after the optical distribution network (ODN) distributes the optical signal sent by the office terminal device (OLT) into multiple optical signals, the access PRAU combines the multiple optical signals into a combined optical signal in advance, and then sends the combined optical signal to the user terminal device (RONU) and divides the combined optical signal into two optical signals, which are respectively sent to the RU unit and the ONU unit, and the RU unit converts the baseband signal into a wireless signal to complete wireless signal coverage. The signal access method provided by the present disclosure sets the access device PRAU and the user terminal device RONU in the existing PON network, and separates the baseband and the radio frequency, on the one hand, an access device PRAU is used to send optical signals to multiple user terminal devices RONU, thereby improving the utilization rate of the original integrated enterprise-level skin station and further reducing the signal coverage cost and the management and maintenance cost; on the other hand, the user terminal device RONU does not need a dedicated 4G / 5G baseband chip, and the device for realizing 4G / 5G wireless coverage is simple, has low power consumption and low cost; on the other hand, the existing PON network and the skin interconnection mode can be fully utilized, without the need to re-lay cables or build new 4 / 5G expansion skin stations, thereby reducing the construction difficulty and cost.

[0026] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present disclosure, and together with the specification, serve to explain the principles of the present disclosure. It is clear that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0028] Figure 1 The flowchart schematically shows a signal access method in an exemplary embodiment of the present disclosure;

[0029] Figure 2 The composition schematic diagram of a signal access system in an exemplary embodiment of the present disclosure is schematically shown;

[0030] Figure 3 The composition schematic diagram of another signal access system in an exemplary embodiment of the present disclosure is schematically shown;

[0031] Figure 4 The schematic diagram of a computer readable storage medium in an exemplary embodiment of the present disclosure is schematically shown;

[0032] Figure 5 The structure schematic diagram of a computer system of an electronic device in an exemplary embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0033] Example implementations are now described with reference to the drawings. Example implementations can, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art.

[0034] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the

[0035] The block diagrams in the drawings show only the functionality of the features and can not imply a physical or architectural arrangement of the features. That is, the functionality can be implemented in software, hardware, or a combination thereof. The functionality can be implemented in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontrollers.

[0036] The flow diagrams shown in the drawings are examples only and are not necessarily to scale. Also, the flow diagrams can not include all of the steps or options discussed. For instance, some operations / steps can be combined, some operations / steps can be performed in a different order, and some operations / steps can be performed in parallel. Furthermore, some operations / steps can be omitted, or other operations / steps can be added.

[0037] In the field of wireless communication, an optical modem plus integrated skin station is generally used to realize 4G wireless coverage of a home or enterprise, or an extended skin station is used to realize 4 / 5G wireless coverage of an enterprise scene.

[0038] For the optical modem plus integrated skin station to realize 4G wireless coverage of a home or enterprise, the 4G integrated skin station is located behind the optical modem (ONU), supports backhaul to the core network through PTN+VLAN or IPsec, and completes the opening of the 4G cell. In this mode, the LTE cell is exclusively used by a home or enterprise.

[0039] The advantage is that the optical fiber of the original PON network can be used, and LTE cell opening can be completed without secondary wiring construction and property coordination. High-quality LTE services are provided while providing home or enterprise broadband services for users. It is mainly used in home scenarios or some small and micro enterprise scenarios, which not only can quickly improve the indoor coverage quality of wireless signals and improve user experience, but also can offload the traffic of macro stations and relieve the expansion pressure of the macro network.

[0040] But there are many shortcomings, for example, the integrated skin station device must be based on the chip inside, resulting in high cost and power consumption; the integrated skin station baseband chip, only 3G, 4G has SOC chip, 5G has no corresponding SOC chip, so it cannot realize 5G integrated skin station; an integrated skin station is a separate cell, and when the number of skin stations is large, it leads to complex neighbor relationship, more core network parameters, and complex opening and management and maintenance.

[0041] And for the enterprise scene 4 / 5G wireless coverage of the expansion type skin station, the expansion type skin station is an evolution form of the integrated skin station, which uses digital technology and carries wireless signal transmission and distribution based on optical fiber or network cable. Mainly used for low-capacity indoor scenes, it is one of indoor coverage enhancement solutions.

[0042] The expansion type skin station includes a host unit (BBU), an expansion unit (EU), and a radio unit (RU). By expanding the host unit function, 4G and 5G wireless signal coverage can be supported at the same time, and the coverage unit can achieve lower cost.

[0043] But the main problem is that the expansion type skin station needs to be rewired, cannot benefit from the existing to the household optical fiber network, needs to coordinate the property again, and the final cost of the entire network is also high.

[0044] Therefore, based on the technical defects in the prior art, the present disclosure provides a split type wireless signal coverage method, which unifies fixed network broadband communication and wireless mobile communication by designing PON network optical signal and 4 / 5G wireless optical signal. By separating the baseband and radio frequency, the coverage of the original integrated home or enterprise skin station is improved, the utilization rate of the equipment is improved, the purpose of reducing wireless parameters and optimizing complexity is achieved, and at the same time, the baseband and radio frequency parts fully utilize the fixed network skin line as a medium, reducing the construction difficulty and cost, effectively combining mobile and fixed networks.

[0045] The implementation details of the technical solutions of the embodiments of the present disclosure are described in detail below.

[0046] Figure 1 The flowchart of a signal access method in an exemplary embodiment of the present disclosure is schematically shown. As shown in Figure 1 The signal access method includes steps S1 to S3:

[0047] Step S1, the optical distribution network ODN distributes the optical signal sent by the local terminal device OLT to obtain multiple optical signals, and sends the multiple optical signals to the access device PRAU;

[0048] In step S2, the access device PRAU converts the multi-path optical signal transmitted by the at least two optical distribution networks ODNs into a multi-path combined optical signal, and transmits the multi-path combined optical signal to a plurality of user end devices RONUs respectively.

[0049] In step S3, the user end device RONU divides the combined optical signal into a first optical signal and a second optical signal, transmits the first optical signal to a radio frequency unit RU of the user end device RONU to convert the first optical signal into a wireless signal, and transmits the second optical signal to an optical network terminal ONT.

[0050] In the technical solution provided in some embodiments of the present disclosure, after the optical distribution network ODN divides the optical signal transmitted by the local terminal device OLT into a plurality of optical signals, the access device PRAU combines the plurality of optical signals into a combined optical signal, and then transmits the combined optical signal to the user end device RONU, and divides the combined optical signal into two optical signals, which are respectively transmitted to the RU unit and the ONU unit, and the RU unit converts the baseband signal into a wireless signal to complete wireless signal coverage. The signal access method provided by the present disclosure sets the access device PRAU and the user end device RONU in the existing PON network, and separates the baseband and the radio frequency, on the one hand, the access device PRAU transmits optical signals for a plurality of user end devices RONU, which improves the utilization rate of the original integrated enterprise-level skin station and further reduces the signal coverage cost and the management and maintenance cost; on the other hand, the user end device RONU does not need a dedicated 4G / 5G baseband chip, and the device for realizing 4G / 5G wireless coverage is simple, has low power consumption and low cost; on the other hand, the existing PON network and the skin interconnection mode can be fully utilized, without the need to re-lay cables or build new 4 / 5G expansion skin stations, thereby reducing the construction difficulty and cost.

[0051] Next, the steps of the signal access method in the example embodiment will be described in more detail with reference to the accompanying drawings and examples.

[0052] In step S1, the optical distribution network ODN divides the optical signal transmitted by the local terminal device OLT into a plurality of optical signals, and transmits the plurality of optical signals to the access device PRAU.

[0053] Specifically, the local terminal device OLT (Optical Line Terminal) is connected to the upper layer network and completes the uplink access of the PON (Passive Optical Network) network; at the same time, the optical distribution network ODN (Optical Distribution Network) is connected to the user end device RONU, and realizes the control, management and ranging of the user end device RONU.

[0054] Optical Distribution Network (ODN) is a FTTH optical cable network based on PON equipment, which provides optical transmission channel and is mainly composed of optical fiber and one or more passive optical splitters. The one or more passive optical splitters are divided into one or more levels of splitting, for example, the first level of splitting includes a splitter 1 which equally divides the received optical signal power and transmits the optical signal power to a splitter 2 and a splitter 3 at the output end of the access splitter, the splitter 2 and the splitter 3 are the second level of splitting, and then the splitter 2 and the splitter 3 equally divide the received optical signal power again. The splitting ratio can be 1:8, 1:16, etc. The output end of the last level of splitter in the ODN is the output port of the ODN, and is connected to the PRAU through a small-core optical cable single-fiber bidirectional connection.

[0055] The OLT sends an optical signal to the ODN, and the ODN equally divides the received optical signal power through the passive optical splitter to obtain multiple optical signals, and then sends the multiple optical signals to the PRAU.

[0056] In step S2, the PRAU converts the multiple optical signals sent by the at least two ODNs into multiple combined optical signals, and sends the multiple combined optical signals to multiple RONUs, respectively.

[0057] In an embodiment of the present disclosure, the PRAU includes a host unit BBU, an optical network unit ONU, and at least one optical combiner. The PRAU converts the multiple optical signals sent by the at least two ODNs into multiple combined optical signals, including:

[0058] In step S21, the ONU obtains service data.

[0059] In step S22, the BBU performs baseband processing on the service data to obtain multiple baseband optical signals.

[0060] In step S23, the optical combiner combines the multiple baseband optical signals with the multiple optical signals to obtain the multiple combined optical signals.

[0061] Specifically, the output end of the last level of splitter in the ODN is connected to the ONU, and the ONU (Optical Network Unit) provides data, IPTV (Interactive Personal Television), voice (using IAD, Integrated Access Device), and other services.

[0062] The host unit BBU is backhauled through a broadband interface of the optical network unit ONU after splitting, a connection with a core network is established, and service data is acquired; the acquired service data is subjected to baseband processing by the host unit BBU to obtain a baseband optical signal; and then the baseband optical signal and the optical signal after PON splitting are subjected to combining by an optical combiner to obtain a plurality of combined optical signals.

[0063] It should be noted that the number of combined optical signals is determined by the number of the last-stage optical splitters in the optical distribution network ODN accessed by the access device PRAU and the splitting ratio. The number of combined optical signals determines the number of user end devices RONU that can be connected with the access device PRAU.

[0064] For example, if the access device PRAU is connected with two 1:8 splitters, 15 optical combiners can be used to combine 15 combined optical signals respectively, and then the 15 combined optical signals are sent to 15 user end devices RONU for signal coverage.

[0065] Based on the above method, one access device PRAU can be connected with a plurality of user end devices RONU. Compared with a 4G integrated skin station, the number of base station cells required by the present application is small, which reduces the cost of equipment and improves the utilization rate of equipment on the one hand; on the other hand, the relationship between adjacent areas is simple, the interference of cells is small, the required core network parameters are few, the workload of opening and management and maintenance is small, and the complexity of wireless parameters and optimization is also reduced, which is convenient and fast to implement.

[0066] In one embodiment of the present disclosure, the host unit BBU in the access device PRAU is realized by a 4G baseband SOC chip plus a FPGA chip. The 4G baseband SOC chip mainly realizes L3, L2, L1 and other protocol stack processing and OM and other platform software functions, and the FPGA chip mainly realizes interface expansion.

[0067] In addition, when supporting 5G wireless signal coverage, a 5G expansion source needs to be added, and the 5G expansion source can be introduced through an expansion optical port of the above-mentioned 4G BBU. Therefore, the host unit BBU is also used for connecting with the 5G expansion source, which can be provided by an optical port of an EU unit to realize 5G wireless signal coverage.

[0068] Based on the above method, a three-level architecture distributed scheme can be used to directly combine the expansion unit and the PON signal after secondary splitting, and the baseband signal host unit of the 4G is connected with the expansion unit through an optical fiber; when the 5G signal is accessed, the host unit BBU is only used as an expansion unit for 5G access. The signal access method of the present disclosure can be simultaneously applied to the coverage of 4G and 5G wireless signals.

[0069] In step S3, the user-side device RONU divides the combined optical signal into a first optical signal and a second optical signal, and sends the first optical signal to a radio unit RU of the user-side device RONU to convert the first optical signal into a wireless signal, and sends the second optical signal to an optical network terminal ONT.

[0070] In one embodiment of the present disclosure, step S3 specifically includes the following steps:

[0071] Step S31, the user-side device RONU divides the combined optical signal into a first optical signal and a second optical signal;

[0072] Step S32, the first optical signal is sent to the radio unit RU of the user-side device RONU; and

[0073] Step S33, the second optical signal is sent to the optical network terminal ONT.

[0074] Further, in step S31, the user-side device RONU divides the combined optical signal into a first optical signal and a second optical signal, including: using an optical splitter in the user-side device RONU to split the combined optical signal to obtain the first optical signal and the second optical signal.

[0075] Specifically, the optical splitter is integrated in the user-side device RONU, and after receiving the combined optical signal sent by the access device PRAU, the received combined optical signal is equally divided into two optical signals by using the optical splitter.

[0076] In step S32, the radio unit RU is integrated in the user-side device RONU, and the radio unit RU is connected to one branch interface of the optical splitter to obtain one optical signal after the optical splitter splits the light.

[0077] Then, the RU unit converts the baseband signal into a wireless signal through an interface conversion, a digital signal processing, a radio frequency signal processing, an antenna radiation, and the like to complete the wireless signal coverage.

[0078] Based on the above method, the user-side device RONU does not need a dedicated 4G / 5G baseband chip, the device for realizing 4G / 5G wireless coverage is relatively simple, the power consumption is relatively small, the cost is relatively low, and the device is convenient for popularization and promotion.

[0079] In one embodiment of the present disclosure, the radio unit RU can support a same-frequency-band 4 / 5G dual mode, such as a B1 frequency band (4G occupies 10MHz bandwidth, 5G occupies 50MHz bandwidth, and the like); or can support a different-frequency-band 4 / 5G dual mode, such as a B1 frequency band (4G occupies 20MHz bandwidth) and a B78 frequency band (5G occupies 100MHz bandwidth), and other combinations of frequency bands or bandwidths can be supported.

[0080] In addition, the radio frequency unit RU can also support B1 band 2T2R application, can support B1 band 4T4R application, or B1 band 2T2R plus B78 band 2T2R application, etc.

[0081] It should be noted that the radio frequency unit RU is connected with the access device PRAU through a skin wire, and can be installed and used with the existing wideband terminal through the same skin wire, without the need to re-lay the cable, thereby reducing the construction difficulty.

[0082] In step S33, the second optical signal is sent to the optical network terminal ONT. Specifically, there are slight differences in transmission according to whether the optical network terminal ONT is integrated in the user-side device RONU.

[0083] The optical network terminal ONT (Optical Network Terminal) is a component of the optical network unit ONU, refers to the optical network device connected with the end user, and is an optical modem used for carrying the broadband service of the end user. In the FTTH (Fiber To The Home, Fiber To The Home) scene, ONU = ONT.

[0084] In one embodiment of the present disclosure, when the user-side device RONU includes the optical network terminal ONT, the sending of the second optical signal to the optical network terminal ONT includes: sending the second optical signal to the optical network terminal ONT of the user-side device RONU.

[0085] Specifically, if there is no optical network terminal ONT in the home or user unit, the optical network terminal ONT needs to be integrated into the user-side device RONU, and the optical network terminal ONT is connected with another branch interface of the optical splitter to obtain one optical signal after the splitting of the optical splitter.

[0086] In one embodiment of the present disclosure, when the user-side device RONU does not include the optical network terminal ONT, the sending of the second optical signal to the optical network terminal ONT includes: pre-configuring an ONT / SC optical interface of the user-side device RONU; wherein the ONT / SC optical interface is connected with the optical network terminal ONT; and sending the second optical signal to the ONT / SC optical interface, so as to send the second optical signal to the optical network terminal ONT through the ONT / SC optical interface.

[0087] Specifically, if there is an optical network terminal ONT in the home or user unit, the user-side device RONU does not need to integrate the optical network terminal ONT, and only needs to design an ONT / SC optical interface connected with the optical network terminal ONT, and the interface is connected with the optical network terminal ONT.

[0088] The optical splitter sends another branched optical signal to the ONT / SC optical interface, and the optical signal is sent to the optical network terminal (ONT) connected to the interface through the ONT / SC optical interface.

[0089] In addition, the ACDC adapter is used to supply power to the user-side device RONU.

[0090] Based on the above description, the signal access method provided by the present disclosure uses two different wavelengths of laser for transmitting and receiving PON network optical signals and 4 / 5G real-time wireless network optical signals, respectively, and the combining of each wavelength is realized by using a single-fiber optical module and a splitter, thereby unifying the two main communication methods of fixed network broadband communication and wireless mobile communication without affecting each other.

[0091] At the same time, the single-fiber single-mode module and the 1 / 2 splitter are used to combine and branch the different wavelength laser signals, which fully utilizes the inhibitory effect of the single-fiber single-mode optical module on other wavelength laser signals that are not used by itself, thereby avoiding the crosstalk problem of different wavelength laser signals in fiber transmission.

[0092] Compared with using a wireless repeater similar to a mobile phone companion to solve the coverage problem of wireless signals, the technical defects such as unmanageable equipment, unguaranteed wireless signal quality, and interference with macro stations are avoided, and the method is suitable for large-scale popularization and application.

[0093] Figure 2 A schematic diagram of a signal access system in an exemplary embodiment of the present disclosure is schematically shown. As shown in the figure, Figure 2 The signal access system includes a central office device OLT 21, an optical distribution network ODN 22, an access device PRAU 23, and a user-side device RONU 24.

[0094] The central office device OLT 21 is connected with the optical distribution network ODN 22, at least two optical distribution networks ODN 22 are connected with the access device PRAU 23, and the access device PRAU 23 is connected with the user-side device RONU 24.

[0095] The central office device OLT 21 is configured to send an optical signal to the optical distribution network ODN 22.

[0096] The optical distribution network ODN 22 is configured to receive the optical signal sent by the central office device OLT 21, distribute the optical signal to obtain a plurality of optical signals, and send the plurality of optical signals to the access device PRAU 23.

[0097] The access device PRAU 23 is configured to receive the multi-path optical signal transmitted by the optical distribution network ODN 22, convert the multi-path optical signal into a multi-path combined optical signal, and transmit the multi-path combined optical signal to the plurality of user terminal devices RONU 24 respectively. The access device PRAU 23 mainly comprises an optical network unit ONU 231 and a host unit BBU 232.

[0098] The user terminal device RONU 24 is configured to receive the combined optical signal transmitted by the access device PRAU 23, divide the combined optical signal into a first optical signal and a second optical signal, transmit the first optical signal to a radio frequency unit RU 241 of the user terminal device RONU 24 to convert the first optical signal into a wireless signal, and transmit the second optical signal to an optical network terminal ONT 242.

[0099] In an embodiment of the present disclosure, the access device PRAU 23 comprises a host unit BBU, an optical network unit ONU, and at least one optical combiner. The access device PRAU 203 can further comprise a power supply unit configured to supply power to the access device.

[0100] Specifically, the host unit BBU comprises a service interface and an optical module interface. The service interface is configured to be connected to a network port of the optical network unit ONU internally. The optical module interface is configured to be connected to an optical combiner branch interface of the optical combiner internally.

[0101] The optical network unit ONU comprises an ODN / SC optical interface and a network port. The ODN / SC optical interface is configured to be connected to the optical distribution network ODN externally. The network port is configured to be connected to the service interface of the host unit BBU internally.

[0102] The optical combiner comprises an ODN / SC optical interface, an RU / SC optical interface, and an optical combiner branch interface. The ODN / SC optical interface is configured to be connected to the optical distribution network ODN externally. The RU / SC optical interface is configured to be connected to the access device PRAU externally.

[0103] In addition, the host unit BBU further comprises a 5G / SC optical interface configured to be connected to a 5G extended signal source externally.

[0104] In an embodiment of the present disclosure, the user terminal device RONU 204 comprises an optical splitter, a radio frequency unit RU, and an optical network terminal ONT.

[0105] Specifically, the optical splitter comprises an AU / SC optical interface, a first branch interface, and a second branch interface. The AU / SC optical interface is configured to be connected to the access device PRAU externally. The first branch interface is configured to be connected to the radio frequency unit RU internally. The second branch interface is configured to be connected to the optical network terminal ONT internally.

[0106] In one embodiment of the present disclosure, the user-side device RONU 204 comprises an optical splitter, a radio frequency unit RU, and an ONT / SC optical interface.

[0107] Specifically, the optical splitter comprises an AU / SC optical interface, a first branch interface, and a second branch interface. The AU / SC optical interface is configured to externally connect the access device PRAU; the first branch interface is configured to internally connect the radio frequency unit RU; and the second branch interface is configured to internally connect the ONT / SC optical interface, which is configured to externally connect the optical network terminal ONT.

[0108] Based on the above method, the access device PRAU and the user-side device RONU are set based on the existing PON network signal access, which can make full use of the existing PON network, and can quickly realize 4G / 5G wireless coverage where the PON network exists, which is faster and simpler in construction and lower in overall network cost compared with the 4G / 5G newly-built expansion skin station.

[0109] Figure 3 The composition of another signal access system in the exemplary embodiment of the present disclosure is schematically shown. Next, the connection of each unit in the signal access system will be described in detail with reference to Figure 3 The connection of each unit in the signal access system will be described in detail with reference to

[0110] The signal access system comprises an OLT 31, a first-level optical splitter 32, a second-level optical splitter 33, an access device PRAU 34, and a user-side device RONU 35. The access device PRAU 34 is connected to two 1:8 second-level optical splitters 33 and 15 user-side devices RONU 35.

[0111] For the access device PRAU 34, a 4G BBU 343 (with 16 single-mode single-fiber optical modules) single board, an ONU module 342, 15 optical combiners 344 (1:2 optical splitters can be used), a power supply unit module 341, etc. are integrated into an access device unit RPAU.

[0112] The optical combiner 344 has one branch interface connected to a corresponding optical module interface on the BBU single board inside the RPAU device, and the other branch interface is externally connected to the ODN / SC optical interface (a total of 16, 1-15) on the device panel. The common interface is externally connected to the RU / SC optical interface (a total of 15, 1-15) on the device panel.

[0113] The broadband gigabit network port of the ONU module 342 is connected to the corresponding 4G service interface of the BBU single board, and the optical port of the ONU module is connected to the 16th ODN / SC optical interface on the RPAU device panel.

[0114] The optical interface of the 16th optical module on the BBU single board 343 is connected to the 5G / SC optical interface on the RPAU device panel, and then connected to the 5G signal source 345, in order to expand the use of 5G signals.

[0115] The RPAU device is installed near the secondary optical distribution unit ODN, and the power supply required by the RPAU is provided.

[0116] For the user-side device RONU 35, an ONU module 352 (i.e. an ONT module), an RU (with one single-mode single-fiber optical module) module 353, and an optical splitter 351 (a 1:2 optical splitter can be used) are integrated into a device unit RONU.

[0117] The two branch interfaces of the optical splitter 351 are connected to the ONU module 352 and the RU module 353 respectively within the device, and the common interface is connected to the AU / SC optical interface on the device panel. The RONU device is powered by an ACDC adapter.

[0118] After the access device PRAU and the user-side device RONU are integrated, the system is connected. The 16 optical fibers after 1:8 secondary optical distribution are connected to the corresponding ODN / SC interfaces of the PRAU device, and the RU / SC interfaces of the PRAU device are connected to the AU / SC optical interfaces of the corresponding RONU unit through a single optical fiber (which can be the existing in-house optical fiber).

[0119] When the signal is accessed, the BBU establishes a connection with the core network through the broadband interface of one ONU after secondary optical distribution; the service data is processed by the BBU and transmitted to the RONU unit after the optical signal of the BBU front interface is combined with the optical signal of the PON secondary optical distribution; the combined optical signal is transmitted to the user's residence through a single optical fiber, and then divided into two optical signals by an optical splitter, which are respectively provided to the RU unit and the ONU unit. The RU unit converts the 4G baseband signal into a 4G wireless signal to complete the wireless signal coverage.

[0120] It should be noted that although several modules or units of the device for action execution are mentioned in the foregoing detailed description, such a division is not mandatory. Indeed, according to embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into several modules or units.

[0121] In the exemplary embodiments of the present disclosure, a storage medium capable of implementing the above method is also provided. Figure 4 The schematic diagram of a computer-readable storage medium in the exemplary embodiments of the present disclosure is schematically shown as Figure 4As shown, a program product 400 for implementing the above method according to the embodiments of the present disclosure is described, which can adopt a portable compact disc read-only memory (CD-ROM) and include program codes, and can run on a terminal device, such as a mobile phone. However, the program product of the present disclosure is not limited thereto, and in this document, the readable storage medium can be any tangible medium that contains or stores a program, which can be used by or in conjunction with an instruction execution system, apparatus or device.

[0122] In the exemplary embodiments of the present disclosure, an electronic device capable of implementing the above method is also provided. Figure 5 The structure of a computer system of an electronic device in the exemplary embodiments of the present disclosure is schematically shown.

[0123] It should be noted that, Figure 5 The computer system 500 of the electronic device shown is only an example, and should not bring any limitation to the functions and use range of the embodiments of the present disclosure.

[0124] As Figure 5 shown, the computer system 500 includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to programs stored in a read-only memory (ROM) 502 or loaded from a storage portion 508 into a random access memory (RAM) 503. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, the ROM 502, and the RAM 503 are connected to each other through a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0125] The following components are connected to the I / O interface 505: an input portion 506 including a keyboard, a mouse, and the like; an output portion 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), and the like, and a speaker, and the like; a storage portion 508 including a hard disk, and the like; and a communication portion 509 including a network interface card such as a LAN (Local Area Network) card, a modem, and the like. The communication portion 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, and the like, is mounted on the drive 510 as needed, so that a computer program read therefrom is installed into the storage portion 508 as needed.

[0126] In particular, according to embodiments of the present disclosure, the processes described below with reference to the flowcharts can be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program code for executing the methods illustrated by the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network by the communication section 509, and / or installed from the detachable medium 511. When the computer program is executed by the central processing unit (CPU) 501, various functions defined in the system of the present disclosure are executed.

[0127] It should be noted that the computer readable medium shown in the embodiments of the present disclosure can be a computer readable signal medium or a computer readable storage medium or any combination of the two. The computer readable storage medium may, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or apparatus. In the present disclosure, the computer readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, which carries computer readable program code. Such a propagated data signal can take many forms, including but not limited to an electromagnetic signal, an optical signal or any suitable combination of the above. The computer readable signal medium can also be any computer readable medium other than the computer readable storage medium, which can send, propagate or transmit a program for use by or in conjunction with an instruction execution system, device or apparatus. The program code contained on the computer readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, or the like, or any suitable combination of the above.

[0128] The computer program product of the present disclosure can be a computer program including a plurality of instructions executable by one or more processors of an electronic device to perform the methods as described in the above embodiments of the present disclosure. The computer program product can be stored in the form of a non-transitory computer readable medium. The non-transitory computer readable medium can include program instructions, data files, computer programs, scripts, and / or other module executed by one or more processors of the electronic device for performing the functions described in the above embodiments of the present disclosure. The above-described functions can be achieved by one or more electronic devices with the processors contained therein executing the sequences of instructions included in the computer program product. The above-described functions can be achieved by the electronic device with the processors contained therein executing the sequences of instructions included in the computer program product. The above-described functions can be achieved by the electronic device with the processors contained therein executing the sequences of instructions included in the computer program product.

[0129] The units described in the embodiments of the present disclosure can be implemented by software, or by hardware, or by a combination of software and hardware. The units described can be located in a single processor, or can be distributed on multiple processors. The name of the units described above does not limit the function of the units themselves.

[0130] As another aspect, the present disclosure also provides a computer readable medium, which can be included in the electronic device described in the above embodiments, or can exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs, which, when executed by the electronic device, cause the electronic device to implement the methods described in the above embodiments.

[0131] It should be noted that although several modules or units for performing actions are mentioned in the above detailed description, the division into such modules or units is not mandatory. In fact, according to the embodiments of the present disclosure, features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, features and functions of one module or unit described above can be further divided into a plurality of modules or units.

[0132] Those skilled in the art can easily understand, through the above description of the embodiments, that the example embodiments described herein can be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash disk, a mobile hard disk, or the like) or a network, and includes a number of instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the methods according to the embodiments of the present disclosure.

[0133] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the present disclosure cover any and all variations of the present disclosure that come within the scope of the following claims and their equivalents. It is intended that the present disclosure include all modifications and alterations from this disclosure.

[0134] It should be understood that the present disclosure is not limited to the precise structures as herein described and illustrated in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of this present disclosure. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A signal access method, characterized by, The application relates to a method for transmitting optical signals in a passive optical network. The optical distribution network (ODN) distributes optical signals transmitted by an optical line terminal (OLT) to obtain multiple optical signals and transmits the multiple optical signals to an access device (PRAU); The access device (PRAU) comprises a host unit (BBU), an optical network unit (ONU) and at least one optical combiner; One of the multiple optical signals is accessed to the optical network unit (ONU) so that the access device (PRAU) obtains service data through the optical network unit (ONU); the host unit (BBU) performs baseband processing on the service data to obtain multiple baseband optical signals; the optical combiner combines the multiple baseband optical signals with other optical signals in the multiple optical signals except the one accessed to the optical network unit (ONU) respectively to obtain multiple combined optical signals, and transmits the multiple combined optical signals to multiple customer premises equipment (RONU) respectively; The customer premises equipment (RONU) divides the combined optical signal into a first optical signal and a second optical signal, transmits the first optical signal to a radio unit (RU) of the customer premises equipment (RONU) to convert the first optical signal into a wireless signal, and transmits the second optical signal to an optical network terminal (ONT).

2. The signal access method of claim 1, wherein, The host unit (BBU) is further used for connecting with a 5G extended source.

3. The signal access method of claim 1, wherein, The customer premises equipment (RONU) divides the combined optical signal into a first optical signal and a second optical signal, comprising: The optical splitter in the customer premises equipment (RONU) divides the combined optical signal to obtain the first optical signal and the second optical signal.

4. The signal access method of claim 1, wherein, When the customer premises equipment (RONU) comprises the optical network terminal (ONT), the step of transmitting the second optical signal to the optical network terminal (ONT) comprises: Transmitting the second optical signal to the optical network terminal (ONT) of the customer premises equipment (RONU).

5. The signal access method of claim 1, wherein, When the customer premises equipment (RONU) does not comprise the optical network terminal (ONT), the step of transmitting the second optical signal to the optical network terminal (ONT) comprises: Preconfiguring an SC interface of an ONT of the customer premises equipment (RONU); wherein the SC interface of the ONT is connected with the optical network terminal (ONT); Transmitting the second optical signal to the SC interface of the ONT so as to transmit the second optical signal to the optical network terminal (ONT) through the SC interface of the ONT.

6. A signal access system, characterized by The application relates to a method for transmitting optical signals in a passive optical network. The optical line terminal (OLT) is used for transmitting optical signals to the optical distribution network (ODN); The optical distribution network (ODN) is used for receiving the optical signals transmitted by the optical line terminal (OLT), distributing the optical signals to obtain multiple optical signals, and transmitting the multiple optical signals to the access device (PRAU); ​ The access device PRAU comprises a host unit BBU, an optical network unit ONU and at least one optical combiner, which is used to access one of the multiple optical signals to the optical network unit ONU to obtain service data through the optical network unit ONU; the host unit BBU is used to perform baseband processing on the service data to obtain multiple baseband optical signals; the optical combiner is used to combine the multiple baseband optical signals with other optical signals in the multiple optical signals except the one accessed to the optical network unit ONU to obtain multiple combined optical signals, and the multiple combined optical signals are respectively sent to multiple user terminal devices RONU. The user terminal device RONU is used to receive the combined optical signal sent by the access device PRAU, divide the combined optical signal into a first optical signal and a second optical signal, send the first optical signal to a radio frequency unit RU of the user terminal device RONU to convert the first optical signal into a wireless signal, and send the second optical signal to an optical network terminal ONT.

7. The signal access system of claim 6, wherein, The host unit BBU comprises a service interface and an optical module interface; wherein, The service interface is used to connect a network port of the optical network unit ONU internally; and The optical module interface is used to connect an optical combiner branch interface of the optical combiner internally.

8. The signal access system of claim 6, wherein, The optical network unit ONU comprises an ODN SC interface and a network port; wherein, The ODN SC interface is used to connect the optical distribution network ODN externally; and The network port is used to connect the service interface of the host unit BBU internally.

9. The signal access system of claim 6, wherein, The optical combiner comprises an ODN SC interface, an RU SC interface and an optical combiner branch interface; wherein, The ODN SC interface is used to connect the optical distribution network ODN externally; The RU SC interface is used to connect the access device PRAU externally; and The optical combiner branch interface is used to connect the optical module interface of the host unit BBU internally.

10. The signal access system of claim 7, wherein, The host unit BBU further comprises a 5G SC interface, which is used to connect a 5G extended signal source externally.

11. The signal access system of claim 6, wherein, The user terminal device RONU comprises an optical splitter, a radio frequency unit RU and an optical network terminal ONT.

12. The signal access system of claim 11, wherein, The optical splitter comprises an AU SC interface, a first branch interface and a second branch interface; wherein, The AU SC interface is used to connect the access device PRAU externally; The first branch interface is used to connect the radio frequency unit RU internally; and The second branch interface is used to connect the optical network terminal ONT internally.

13. The signal access system of claim 6, wherein, The user terminal device RONU comprises an optical splitter, a radio frequency unit RU and an ONT SC interface; wherein, the ONT SC interface is used to connect the optical network terminal ONT externally.

14. A computer readable storage medium having stored thereon a computer program, the program being executed by a processor to implement the signal access method according to any one of claims 1 to 5.

15. An electronic device, comprising: comprise: one or more processors; a storage device for storing one or more programs, which when executed by the one or more processors, cause the one or more processors to implement the signal access method according to any one of claims 1 to 5.

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