A communication system

Abstract

The application provides a communication system, comprising a BBU, at least one HUB connected with the BBU, and at least one pRRU connected with each HUB, the communication system further comprises at least one AC, at least one OLT connected with each AC and a plurality of APs; wherein at least one service board is arranged in each OLT; a first optical splitter is arranged in each pRRU and is connected with part of the APs in the plurality of APs and one second optical splitter in a plurality of second optical splitters arranged in the HUB connected with the pRRU, different first optical splitters are connected with different APs; all the second optical splitters arranged in each HUB are connected with the same service board in the OLT connected with the HUB. The application can save the system deployment cost.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication system. Background Art

[0002] In the 5G communication system, a small radio remote unit (pRRU) can be connected to an access point (AP) to expand the wireless local area network (WLAN).

[0003] However, the coverage radius of an AP is approximately 10 meters, while that of a pRRU is approximately 20 meters, making them unable to cover both 5G and WLAN signals simultaneously. In actual deployments, to achieve simultaneous coverage of 5G and WLAN signals, the limited coverage radius of the AP requires the same number of pRRUs as the number of APs deployed. This significantly increases the number of pRRUs required, significantly increasing the deployment cost of the entire communication system. Summary of the Invention

[0004] In order to overcome the problems existing in the related art, the present application provides a communication system.

[0005] According to a first aspect of an embodiment of the present application, a communication system is provided, comprising a baseband unit (BBU), at least one radio unit hub (HUB) connected to the BBU, and at least one pRRU connected to each HUB. The communication system further comprises at least one access controller (AC), at least one optical line terminal (OLT) connected to each AC, and a plurality of access points (APs).

[0006] Each OLT is provided with at least one service board;

[0007] Each pRRU is provided with a first optical splitter, and is respectively connected to some of the APs in the plurality of APs and a second optical splitter provided in a HUB connected to the pRRU, and different first optical splitters are connected to different APs;

[0008] All second optical splitters in each HUB are connected to the same service card in the OLT connected to the HUB;

[0009] Each first optical splitter is used to convert a first optical signal received from the corresponding HUB through the corresponding second optical splitter and need to be sent to the first AP among the multiple APs into a first wireless signal, and send it to the first AP, and convert a second wireless signal received from the second AP among the multiple APs into a second optical signal, and send it to the corresponding second optical splitter, so that the corresponding second optical splitter sends the second optical signal to the AC through the corresponding service board in the corresponding OLT for processing.

[0010] Preferably, the first optical splitter is a 1:2 optical splitter.

[0011] Preferably, the first optical splitter is a 1:4 optical splitter.

[0012] Preferably, the first optical splitter is a 1:8 optical splitter.

[0013] Preferably, each second optical splitter in each HUB is a 1:4 optical splitter, and any second optical splitter in each HUB is connected to four first optical splitters.

[0014] Preferably, each second optical splitter in each HUB is a 1:2 optical splitter, and any second optical splitter in each HUB is connected to two first optical splitters.

[0015] Preferably, the maximum bandwidth supported by a single port of each service card in each OLT is 10GE.

[0016] Preferably, the maximum bandwidth supported by a single port of each service card in each OLT is 50GE.

[0017] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0018] In an embodiment of the present application, by deploying at least one AC, at least one OLT, multiple APs in a 5G communication system, and setting a first optical splitter in each pRRU and a related second optical splitter in a corresponding HUB, not only is simultaneous coverage of 5G signals and WLAN signals achieved, but the number of deployed pRRUs is also reduced, thereby greatly saving the deployment cost of the entire communication system.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] Figure 1One of the architectural diagrams of the communication system provided in an embodiment of the present application;

[0022] Figure 2 The second schematic diagram of the architecture of the communication system provided in the embodiment of the present application;

[0023] Figure 3 This is the third architectural diagram of the communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0025] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words "if" or "if" as used herein may be interpreted as "when" or "when".

[0027] Next, the embodiments of the present application are described in detail.

[0028] The embodiment of the present application provides a communication system, such as Figure 1 As shown, the communication system may include a BBU, at least one HUB connected to the BBU (only one HUB is shown in the figure), and at least one pRRU connected to each HUB (only one pRRU is shown in the figure). In addition, the communication system may also include at least one AC ( Figure 1 Only one AC is shown), at least one OLT connected to each AC ( Figure 1 Only one OLT) and multiple APs are shown.

[0029] Each OLT is provided with at least one service board.

[0030] Each pRRU is provided with a first optical splitter, which is respectively connected to some APs among the multiple APs and one second optical splitter among the multiple second optical splitters provided in the HUB connected to the pRRU. Different first optical splitters are connected to different APs.

[0031] All the second optical splitters provided in each HUB are connected to the same service board in the OLT connected to the HUB.

[0032] Each first optical splitter is used to convert a first optical signal received from the corresponding HUB through the corresponding second optical splitter and need to be sent to a first AP among multiple APs into a first wireless signal, and send it to the first AP, and convert a second wireless signal received from a second AP among the multiple APs into a second optical signal, and send it to the corresponding second optical splitter, so that the corresponding second optical splitter sends the second optical signal to the AC through the corresponding service board in the corresponding OLT for processing.

[0033] Here, any one of the multiple APs provides wireless access services for wireless terminals. The specific access and interaction processes are existing technologies and will not be described in detail here.

[0034] It should be noted that in this embodiment of the present application, the BBU communicates with the core network and can connect to a maximum of four hubs, and a hub can connect to a maximum of eight pRRUs. The specific number of hubs connected to the BBU and the specific number of pRRUs connected to a single hub can be deployed by the administrator based on the actual needs of the communication system.

[0035] A maximum of 10 service boards can be set on the OLT, and 24 ports can be set on one service board.

[0036] It should be further noted that the BBU and HUB, the AC and OLT, the OLT and the second optical splitter, the second optical splitter and the first optical splitter, and the first optical splitter and the AP are all connected via optical fibers. The HUB and pRRU are connected via a hybrid optical / electrical cable.

[0037] In addition, the communication processes between the BBU and the core network, between the BBU and the HUB, and between the HUB and the pRRU are existing technologies and will not be described in detail here.

[0038] Specifically, in the embodiment of the present application, the first optical splitter may be a 1:2 optical splitter, a 1:4 optical splitter, or a 1:8 optical splitter.

[0039] In the case that the first optical splitter is a 1:2 optical splitter, the first optical splitter can be connected to two APs.

[0040] In the case that the first optical splitter is a 1:4 optical splitter, the first optical splitter can be connected to four APs.

[0041] In the case where the first optical splitter is a 1:8 optical splitter, the first optical splitter can be connected to 8 APs.

[0042] It should be noted that which of the above optical splitters is used as the first optical splitter can be deployed by the administrator of the communication system according to actual needs of the communication system.

[0043] Specifically, in the embodiment of the present application, each second optical splitter in each HUB may be a 1:4 optical splitter. In this case, any second optical splitter in each HUB may be connected to four first optical splitters.

[0044] In addition, each second optical splitter in each HUB may also be a 1:2 optical splitter. In this case, any second optical splitter in each HUB is connected to two first optical splitters.

[0045] Specifically, in the embodiment of the present application, the maximum bandwidth supported by a single port of each service card in each OLT may be 10GE.

[0046] Of course, in order to meet the higher network bandwidth requirements of some users, the maximum bandwidth supported by a single port of each service card in each OLT can also be 50GE.

[0047] For example, university dormitories have high requirements for WLAN signals, but the APs have low transmit power and use high frequency bands, severely impacting signal penetration through walls. APs can only meet these requirements if deployed indoors. The pRRUs have much higher transmit power than the APs and use relatively low frequency bands. After 5G signals penetrate walls, they can meet the requirements for 5G services. In this scenario, pRRUs can be deployed in dormitory corridors and APs in dormitory rooms to achieve full coverage of both 5G and WLAN signals.

[0048] In one example, the architecture of the communication system used in the university dormitory scene can be as follows: Figure 2 As shown in the figure, in this communication system, the BBU, AC, and OLT can be located in the central computer room of the university; the HUB is equipped with two 1:4 optical splitters, connected to 8 pRRUs, and is located in the weak current room of the building; the 8 pRRUs are located in the dormitory corridor, and each pRRU is equipped with a 1:8 optical splitter, which is connected to 8 APs respectively.

[0049] In the case that the bandwidth of a single port of the service board card in the OLT is 10GE, one 10GE port can be connected with a maximum of 32 APs, and the average bandwidth of a single AP is usually not less than 312.5 Mbps, which can meet the basic demand of the users in the dormitory room for the WLAN network.

[0050] In another example, the architecture of the communication system used in the college dormitory scenario can be as shown in FIG. 2, in which the BBU, the AC and the OLT can be located in the central computer room of the college, the HUB is provided with four 1:2 optical splitters, and is connected with eight pRRUs, and is located in the weak current room of the building; the eight pRRUs are located in the dormitory corridor, and each pRRU is provided with a 1:8 optical splitter and is connected with eight APs. Figure 3

[0051] In the case that the bandwidth of a single port of the service board card in the OLT is 10GE, one 10GE port can be connected with a maximum of 32 APs, and the average bandwidth of a single AP is usually not less than 312.5 Mbps, which can meet the basic demand of the users in the dormitory room for the WLAN network.

[0052] In addition, in the case that the bandwidth of a single port of the service board card in the OLT is 50GE, one 10GE port can be connected with a maximum of 16 APs, and the average bandwidth of a single AP is usually not less than 3125 Mbps, which can meet the super-high bandwidth demand of the users in the dormitory room for the WLAN network.

[0053] As can be seen from the above technical solutions, in the embodiments of the present application, by deploying at least one AC, at least one OLT, a plurality of APs in the 5G communication system, and by setting a first optical splitter in each pRRU and a related second optical splitter in the corresponding HUB, not only the 5G signal and the WLAN signal can be simultaneously covered, but also the number of pRRUs deployed is reduced, and the deployment cost of the entire communication system is greatly saved.

[0054] The above only describes the preferred embodiments of the present application and should not be used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. A communication system comprising a baseband processing unit (BBU), at least one remote unit (HUB) connected to the BBU, and at least one small radio remote unit (pRRU) connected to each HUB, characterized in that: The communication system further comprises at least one access controller AC, at least one optical line terminal OLT connected to each AC, and a plurality of access points AP; Each OLT is provided with at least one service board; Each pRRU is provided with a first optical splitter, and is respectively connected to some of the plurality of APs and one of the plurality of second optical splitters provided in the HUB connected to the pRRU, and different first optical splitters are connected to different APs; All second optical splitters in each HUB are connected to the same service card in the OLT connected to the HUB; Each first optical splitter is used to convert a first optical signal received from the corresponding HUB through the corresponding second optical splitter and need to be sent to the first AP among the multiple APs into a first wireless signal, and send it to the first AP, and convert a second wireless signal received from the second AP among the multiple APs into a second optical signal, and send it to the corresponding second optical splitter, so that the corresponding second optical splitter sends the second optical signal to the AC through the corresponding service board in the corresponding OLT for processing.

2. The communication system according to claim 1, wherein: The first optical splitter is a 1:2 optical splitter.

3. The communication system according to claim 1, wherein: The first optical splitter is a 1:4 optical splitter.

4. The communication system according to claim 1, wherein: The first optical splitter is a 1:8 optical splitter.

5. The communication system according to claim 1, wherein: Each second optical splitter in each HUB is a 1:4 optical splitter, and any second optical splitter in each HUB is connected to four first optical splitters. The communication system according to claim 1 , wherein: Each second optical splitter in each HUB is a 1:2 optical splitter, and any second optical splitter in each HUB is connected to two first optical splitters.

7. The communication system according to claim 1, wherein: The maximum bandwidth supported by a single port on each service card in each OLT is 10GE.

8. The communication system according to claim 1, wherein: The maximum bandwidth supported by a single port on each service card in each OLT is 50GE.

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