CN112511468A - Signal transmission method, BBU (baseband unit) and base station - Google Patents
Signal transmission method, BBU (baseband unit) and base station Download PDFInfo
- Publication number
- CN112511468A CN112511468A CN202011276825.8A CN202011276825A CN112511468A CN 112511468 A CN112511468 A CN 112511468A CN 202011276825 A CN202011276825 A CN 202011276825A CN 112511468 A CN112511468 A CN 112511468A
- Authority
- CN
- China
- Prior art keywords
- mobile network
- network service
- service board
- board
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0272—Arrangements for coupling to multiple lines, e.g. for differential transmission
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0026—PCI express
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The specification provides a signal transmission method, a BBU (base band unit) and a base station, wherein the method comprises the steps of obtaining a signal to be transmitted by a first mobile network service board, obtaining a reserved pin of a PCIe (peripheral component interconnect express) interface of the first mobile network service board, and sending the signal to be transmitted to a second mobile network service board connected with the first mobile network service board, wherein the reserved pin comprises two or more adjacent pins on the PCIe interface. By the method, signal transmission among different service board cards can be realized.
Description
Technical Field
The present disclosure relates to the field of 5G mobile communications technologies, and in particular, to a signal transmission method, a BBU, and a base station.
Background
The 5G (5th generation mobile networks, fifth generation mobile communication technology) is dedicated to the huge challenge of coping with diversified and differentiated services, meets the multidimensional capability indexes such as ultra-high speed, ultra-low delay, high-speed movement, high energy efficiency, ultra-high flow and connection number density, and the like, and meanwhile, operators also push to construct a hardware white-boxed O-RAN network, introduce more manufacturers to participate in hardware development and production, and evolve the original 4G (4th generation mobile networks, fourth generation mobile communication technology) dedicated hardware of each network element into general hardware. For hardware white-box of the baseband unit BBU, currently, a PCIe hardware accelerator card is added to accelerate 5G L1 processing, i.e., in a form of "server + PCIe accelerator card", based on an existing x86 server or ARM server.
In the current gradual transition from 4G to 5G, there is a need for a 5G base station, that is, a base band processing unit BBU is required to have the capability of processing 5G and 4G services at the same time, and then a possible solution is to add a base band card supporting 4G functions in the 5G BBU, that is, "server + 5G-supporting PCIe acceleration card + 4G-supporting PCIe acceleration card". Under this architecture, how to establish high-speed signal transmission between a 4G-capable PCIe acceleration card (referred to as a "4G card") and a 5G-capable PCIe acceleration card (referred to as a "5G card") is a problem.
Because the 4G Card and the 5G Card are both connected with the Riser Card through a standard PCIe Card electrical mechanical interface (following PCI Express Card electrical Specification) and are connected to the server mainboard, no signal in the PCIe CEM Specification standard on the PCIe Card can solve the requirements.
Disclosure of Invention
The specification provides a signal transmission method, a BBU and a base station, and by the method, signal transmission among different service board cards can be realized.
The present specification provides a method of transmitting a signal, the method comprising:
a first mobile network service board acquires a signal to be transmitted;
acquiring a reserved pin of a PCIe interface of the first mobile network service board, and sending the signal to be transmitted to a second mobile network service board connected with the first mobile network service board;
wherein the reserved pins include two or more adjacent pins on the PCIe interface.
Specifically, the signal to be transmitted is a high-speed differential signal and/or a CPRI signal.
Optionally, the sending the signal to be transmitted to a second mobile network service board connected to the first mobile network service board specifically includes:
the first mobile network service board is connected with the second mobile network service board through a Riser card or a PCIe adapter card, or the first mobile network service board is connected with the second mobile network service board through a mainboard.
Optionally, the first mobile network service board is a 4G baseband service processing board, the second mobile network service board is a 5G baseband service processing board, or the first mobile network service board is a 5G baseband service processing board, and the second mobile network service board is a 4G baseband service processing board.
It can be seen from the foregoing embodiments that the embodiments disclosed in this specification can implement signal transmission between multiple mobile network service boards through the reserved pin of its PCIe interface.
An embodiment of the present specification further provides a baseband processing unit BBU, where the BBU includes: the mobile network system comprises a Riser card or PCIe adapter card, a first mobile network service board and a second mobile network service board, wherein the first mobile network service board and the second mobile network service board are respectively connected with the Riser card through PCIe interfaces, and the BBU comprises:
the first mobile network service board acquires a signal to be transmitted;
and the first mobile network service board sends the signal to be transmitted to a Riser card or a PCIe adapter card through a reserved pin of a PCIe interface of the first mobile network service board, so that the Riser card or the PCIe adapter card sends the signal to be transmitted to a second mobile network service board.
Optionally, the first mobile network service board is a 4G baseband service processing board, the second mobile network service board is a 5G baseband service processing board, or the first mobile network service board is a 5G baseband service processing board, and the second mobile network service board is a 4G baseband service processing board.
It can be seen from the foregoing embodiments that the BBU disclosed in the embodiments of the present specification can implement signal transmission between multiple mobile network service boards through a reserved pin of its PCIe interface.
An embodiment of the present specification further provides a base station, where the base station includes a BBU, and the BBU includes: a Riser card or PCIe adapter card, a first mobile network service board and a second mobile network service board, wherein the first mobile network service board and the second mobile network service board are respectively connected with the Riser card or the PCIe adapter card through a PCIe interface,
the first mobile network service board acquires a signal to be transmitted through a base station where the BBU is located;
and the first mobile network service board sends the signal to be transmitted to a Riser card or a PCIe adapter card through a reserved pin of a PCIe interface of the first mobile network service board, so that the Riser card or the PCIe adapter card sends the signal to be transmitted to a second mobile network service board.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present specification and together with the description, serve to explain the principles of the specification.
Fig. 1 is a schematic flow chart of a signal transmission method according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present specification. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the specification, as detailed in the appended claims.
The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, 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.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present specification. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
At present, in order to realize that a BBU (Base Band Unit, baseband processing Unit) has the capability of processing 5G and 4G services at the same time, a 5G mobile network service board (5G baseband service processing board) and a 4G mobile network service board (4G baseband service processing board) are inserted into a Riser card or a PCIe adapter card of the BBU through a PCIe interface (gold finger) (where the 5G mobile network service board and the 4G mobile network service board may be PCIe cards supporting PCIe CEM signal definition), however, when the 5G mobile network service board and the 4G mobile network service board run services, service signals (such as CPRI signals, high-speed differential signals, or clock signals) are obtained, and at present, for a clock, the 5G mobile network service board and the 4G mobile network service board can be connected to the GNSS antenna through the GNSS interface to acquire the clock signal, respectively, but this method is limited by the GNSS interface on the mobile network service board. Alternatively, the service signals can be transmitted to the 5G card through an extra external cable (such as an optical fiber) through a connector on the panel or at the PCIe tail portion, but this approach requires extra cables and connectors, which not only causes extra cost, but also affects the appearance of the device.
The embodiment of the present specification provides a signal transmission method, as shown in fig. 1, the method includes:
s101, a first mobile network service board acquires a signal to be transmitted;
s102, obtaining a reserved pin of a PCIe interface of the first mobile network service board, and sending the signal to be transmitted to a second mobile network service board connected with the first mobile network service board;
wherein the reserved pins include two or more adjacent pins on the PCIe interface.
The reserved pin may be a pin in PCIe CEM specification, which is nominally named as "RSVD".
In this embodiment, the first mobile network service board is a 4G baseband service processing board (referred to as a 4G service board for short), the second mobile network service board is a 5G baseband service processing board (referred to as a 5G service board for short), or the first mobile network service board is the 5G baseband service processing board, and the second mobile network service board is the 4G baseband service processing board.
In this embodiment, the BBU may further include devices such as a CPU and a motherboard, and in an implementation manner, the 4G service board and the 5G service board are respectively connected to a Riser card (or a PCIe adapter card, it needs to be explained that for convenience of description, this embodiment is illustrated by the Riser card, and when the Riser card is a PCIe card, the present solution is still applicable), and the Riser card is connected to the devices such as the CPU and the motherboard. In other embodiments, the 4G service board and the 5G service board are connected to the two Riser cards through their PCIe interfaces, and the two Riser cards are connected to a CPU, a motherboard, and other devices.
In step S101, the signal to be transmitted acquired by the 4G service board or the 5G service board is a high-speed differential signal and/or a CPRI signal.
In step S102, when the first mobile network service board selects the reserved pin of the PCIe interface, two or more adjacent pins may be selected, for example, the a5/a6 and a32/a33 pins of the PCIe interface are selected to send the acquired signal to be transmitted to the second mobile network service board through the Riser card. It should be noted that the pins listed in this embodiment are only exemplary, and in practical applications, pins such as a5/B5, a32/B32, etc. may be selected.
It can be seen from the foregoing embodiments that the embodiments disclosed in this specification can implement signal transmission between multiple mobile network service boards through the reserved pin of its PCIe interface. For example, in the 4G service board and the 5G service board listed in this embodiment, by the embodiments disclosed in this specification, high-speed differential signals of the 4G service and the 5G service can be realized to realize transmission and transmission through a PCIe interface.
The problem that the appearance of equipment is influenced except that extra cost is caused because extra cables and connectors are required to be additionally arranged for realizing signal transmission of each mobile network service board is solved.
Based on the foregoing method embodiment, an embodiment of the present specification further provides a baseband processing unit BBU, where the BBU includes: the system comprises a Riser card, a first mobile network service board and a second mobile network service board, wherein the first mobile network service board and the second mobile network service board are respectively connected with the Riser card through PCIe interfaces, and the BBU comprises:
the first mobile network service board acquires a signal to be transmitted;
and the first mobile network service board sends the signal to be transmitted to a Riser card through a reserved pin of a PCIe interface of the first mobile network service board, so that the Riser card sends the signal to be transmitted to a second mobile network service board.
The first mobile network service board is a 4G baseband service processing board, the second mobile network service board is a 5G baseband service processing board, or the first mobile network service board is a 5G baseband service processing board, and the second mobile network service board is a 4G baseband service processing board.
It can be seen from the above embodiments that the BBU using the technology of this specification can realize that signals are transmitted between 4G and 5G service boards through the reserved pins, and the BBU space is saved.
Based on the above BBU embodiment, an embodiment of this specification further provides a base station, where the base station includes a BBU, and the BBU includes: the mobile network service board comprises a Riser card, a first mobile network service board and a second mobile network service board, wherein the first mobile network service board and the second mobile network service board are connected with the Riser card through PCIe interfaces respectively.
In this embodiment, the BBU device can be applied to a base station, wherein the base station, i.e. a public mobile communication base station, is an interface device for a mobile device to access the internet, and is a form of a radio station, which is a radio transceiver station for information transfer with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area.
In this embodiment, the first mobile network service board is a 4G baseband service processing board, the second mobile network service board is a 5G baseband service processing board, or the first mobile network service board is a 5G baseband service processing board, and the second mobile network service board is a 4G baseband service processing board.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Other embodiments of the present description will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the specification following, in general, the principles of the specification and including such departures from the present disclosure as come within known or customary practice within the art to which the specification pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the specification being indicated by the following claims.
It will be understood that the present description is not limited to the precise arrangements described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.
The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (7)
1. A method for transmitting a signal, the method comprising:
a first mobile network service board acquires a signal to be transmitted;
acquiring a reserved pin of a PCIe interface of the first mobile network service board, and sending the signal to be transmitted to a second mobile network service board connected with the first mobile network service board;
wherein the reserved pins include two or more adjacent pins on the PCIe interface.
2. The method according to claim 1, wherein the signal to be transmitted is a high-speed differential signal and/or a CPRI signal.
3. The method according to claim 1, wherein the sending the signal to be transmitted to a second mobile network service board connected to the first mobile network service board specifically includes:
the first mobile network service board is connected with the second mobile network service board through a Riser card or a PCIe adapter card, or the first mobile network service board is connected with the second mobile network service board through a mainboard.
4. The method of claim 1, wherein the first mobile network service board is a 4G baseband service processing board, the second mobile network service board is a 5G baseband service processing board, or the first mobile network service board is a 5G baseband service processing board, and the second mobile network service board is a 4G baseband service processing board.
5. A baseband processing unit (BBU), comprising: the mobile network system comprises a Riser card or PCIe adapter card, a first mobile network service board and a second mobile network service board, wherein the first mobile network service board and the second mobile network service board are respectively connected with the Riser card or the PCIe adapter card through a PCIe interface, and the BBU comprises:
the first mobile network service board acquires a signal to be transmitted;
and the first mobile network service board sends the signal to be transmitted to a Riser card or a PCIe adapter card through a reserved pin of a PCIe interface of the first mobile network service board, so that the Riser card or the PCIe adapter card sends the signal to be transmitted to a second mobile network service board.
6. The BBU of claim 5, wherein the first mobile network service board is a 4G baseband service processing board, the second mobile network service board is a 5G baseband service processing board, or the first mobile network service board is a 5G baseband service processing board, and the second mobile network service board is a 4G baseband service processing board.
7. A base station, wherein the base station comprises a BBU, and wherein the BBU comprises: a Riser card or PCIe adapter card, a first mobile network service board and a second mobile network service board, wherein the first mobile network service board and the second mobile network service board are respectively connected with the Riser card or the PCIe adapter card through a PCIe interface,
the first mobile network service board acquires a signal to be transmitted through a base station where the BBU is located;
and the first mobile network service board sends the signal to be transmitted to a Riser card or a PCIe adapter card through a reserved pin of a PCIe interface of the first mobile network service board, so that the Riser card or the PCIe adapter card sends the signal to be transmitted to a second mobile network service board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011276825.8A CN112511468A (en) | 2020-11-16 | 2020-11-16 | Signal transmission method, BBU (baseband unit) and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011276825.8A CN112511468A (en) | 2020-11-16 | 2020-11-16 | Signal transmission method, BBU (baseband unit) and base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112511468A true CN112511468A (en) | 2021-03-16 |
Family
ID=74957986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011276825.8A Withdrawn CN112511468A (en) | 2020-11-16 | 2020-11-16 | Signal transmission method, BBU (baseband unit) and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112511468A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115066040A (en) * | 2022-03-10 | 2022-09-16 | 四川恒湾科技有限公司 | Software architecture based on radio remote unit hardware white-box |
-
2020
- 2020-11-16 CN CN202011276825.8A patent/CN112511468A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115066040A (en) * | 2022-03-10 | 2022-09-16 | 四川恒湾科技有限公司 | Software architecture based on radio remote unit hardware white-box |
| CN115066040B (en) * | 2022-03-10 | 2023-04-18 | 四川恒湾科技有限公司 | Software architecture based on radio remote unit hardware white-box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7024607B2 (en) | DVI link with parallel test data | |
| US8649785B2 (en) | Device and method for communication between a portable computer system and items of avionics equipment | |
| US7149544B2 (en) | Detachable radio module | |
| CN104239829A (en) | Near-field communication device and method thereof | |
| CN102033828B (en) | Method and system for accessing external card | |
| CN112511468A (en) | Signal transmission method, BBU (baseband unit) and base station | |
| CN201699992U (en) | System sharing base station bandwidth by wireless access point | |
| CN110784259B (en) | PAM 4-based integrated optical module error code tester | |
| CN100384287C (en) | Radio communication detecting system | |
| CN210578638U (en) | 5G customer premises equipment | |
| CN217562026U (en) | Serial port adapter plate and system of hardware simulation accelerator | |
| CN111954152A (en) | Synchronous multi-Bluetooth node positioning system and positioning method | |
| CN102244936A (en) | Method and system for sharing base station bandwidth by wireless access point (AP) | |
| CN106681952A (en) | Backboard and signal transmission method and system | |
| US20040266363A1 (en) | Method and system for wireless communication among integrated circuits within an enclosure | |
| CN213693696U (en) | Circuit board applied to 5G data transmission | |
| CN216650090U (en) | Circuit board and electronic device | |
| CN110830754A (en) | Heterogeneous video conference device based on network | |
| CN211980878U (en) | Antenna interface, antenna and mobile terminal | |
| CN217333324U (en) | PCIe card keysets and BBU | |
| CN110990326B (en) | High-speed PCI Express switching drive unit for ATCA framework | |
| CN214851221U (en) | Development board based on 5G module | |
| CN211908855U (en) | Cloud control remote cluster networking device and system | |
| CN217824955U (en) | Subscriber identity module switching circuit and electronic equipment | |
| CN213693697U (en) | Circuit board applied to 4G data transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210316 |
|
| WW01 | Invention patent application withdrawn after publication |