Communication system

Abstract

The invention provides a communication system which comprises a BBU, at least one HUB connected with the BBU, at least one pRRU connected with each HUB, at least one AC, at least one OLT connected with each AC and a plurality of APs. Wherein at least one service board card is arranged in each OLT; a first optical splitter is arranged in each pRRU and is respectively connected with a part of APs in the plurality of APs and a second optical splitter in a plurality of second optical splitters arranged in the HUB connected with the pRRU, and different first optical splitters are connected with different APs; and all the second optical splitters arranged in each HUB are connected with the same service board card in the OLT connected with the HUB. The system deployment cost can be saved.

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 a wireless local area network (WLAN).

[0003] However, the coverage radius of AP is about 10 meters, and the coverage radius of pRRU is about 20 meters, which cannot cover both 5G signals and WLAN signals at the same time. In the actual deployment process, if you want to achieve simultaneous coverage of 5G signals and WLAN signals, the number of deployed pRRUs needs to be the same as the number of deployed APs due to the small coverage radius of AP. In this way, the number of pRRUs that need to be deployed will increase significantly, greatly 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 (BaseBand Unit, BBU), at least one radio unit hub (Radio Unit Hub, HUB) connected to the BBU, and at least one pRRU connected to each HUB, the communication system further comprising at least one access controller (AccessController, AC), at least one optical line terminal (Optical Line Termination, OLT) connected to each AC, and a plurality of APs;

[0006] Wherein, 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 APs among 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 the second optical splitters provided 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 beam splitter is a 1:2 beam splitter.

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

[0012] Preferably, the first beam splitter is a 1:8 beam 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 solution 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 splitter in each pRRU and a related second splitter in a corresponding HUB, not only is it possible to achieve simultaneous coverage of 5G signals and WLAN signals, but it also reduces the number of deployed pRRUs, 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 the specification and constitute a part of this application, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0021] Figure 1One of the architecture diagrams of the communication system provided in the 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 The third architectural diagram of the communication system provided in the embodiment of the present application. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some 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. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

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

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

[0028] The present application embodiment 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), and the communication system may also include at least one AC ( Figure 1 Only one AC is shown in the figure), at least one OLT connected to each AC ( Figure 1 Only one OLT) and multiple APs are shown.

[0029] Wherein, 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 of the multiple second optical splitters provided in the HUB connected to the pRRU, and different first optical splitters are connected to different APs.

[0031] All the second optical splitters arranged 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, for any AP among the multiple APs, a wireless access service is provided for the wireless terminal. The specific access and interaction process is the existing technology and will not be described in detail here.

[0034] It should be noted that in the embodiment of the present application, the BBU communicates with the core network, and the BBU can be connected to a maximum of 4 HUBs, and a HUB can be connected to a maximum of 8 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 according to 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 explained 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 the pRRU are connected via an optical-electrical hybrid 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; may also be a 1:4 optical splitter; or may also be a 1:8 optical splitter.

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

[0040] In the case where 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 by the first optical splitter can be deployed by the administrator of the communication system according to actual requirements 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, in university dormitories, the requirements for WLAN signals are high, but the AP's transmission power is low and the frequency band used is high, which seriously affects the signal's wall penetration coverage effect. APs can only meet the requirements if they are deployed indoors. The pRRU's transmission power is much higher than that of the AP, and the frequency band used is relatively low. After the 5G signal passes through the wall, it can meet the requirements for 5G services. In this case, the pRRU can be deployed in the dormitory corridor and the AP can be deployed in the dormitory room 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 this communication system, the BBU, AC and OLT can be located in the central computer room of the university; two 1:4 splitters are set in the HUB, which are connected to 8 pRRUs and are 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 splitter, which is connected to 8 APs respectively.

[0049] When the bandwidth of a single port of the service card in the OLT is 10GE, a 10GE port can connect to a maximum of 32 APs. The average bandwidth of a single AP is usually not less than 312.5Mbps, which can meet the basic needs of users in dormitory rooms for WLAN networks.

[0050] In another example, the architecture of the communication system used in the university dormitory scene can be as follows: Figure 3 As shown, in this communication system, the BBU, AC and OLT can be located in the central computer room of the university; four 1:2 splitters are set in the HUB, which is 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 splitter, which is connected to 8 APs respectively.

[0051] When the bandwidth of a single port of the service card in the OLT is 10GE, a 10GE port can connect to a maximum of 16 APs. The average bandwidth of a single AP is usually not less than 625Mbps, which can meet the high bandwidth requirements of users in dormitory rooms for WLAN networks.

[0052] In addition, when the bandwidth of a single port of the service card in the OLT is 50GE, a 10GE port can connect to a maximum of 16 APs, and the average bandwidth of a single AP is usually not less than 3125Mbps, which can meet the ultra-high bandwidth requirements of users in dormitory rooms for WLAN networks.

[0053] It can be seen from the above technical solutions that in the embodiments of the present application, by deploying at least one AC, at least one OLT, multiple APs in the 5G communication system, and setting a first splitter in each pRRU and a related second splitter in the corresponding HUB, not only the simultaneous coverage of 5G signals and WLAN signals is achieved, but also the number of deployed pRRUs is reduced, thereby greatly saving the deployment cost of the entire communication system.

[0054] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A communication system, comprising a baseband processing unit BBU, at least one remote unit hub 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; Wherein, 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 APs among 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 the second optical splitters provided 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, characterized in that The first beam splitter is a 1:2 beam splitter.

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

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

5. The communication system according to claim 1, characterized in that: 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.

6. The communication system according to claim 1, characterized in that: 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, characterized in that: The maximum bandwidth supported by a single port of each service card in each OLT is 10GE.

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

Images