Data transmission method based on multiple uplink optical port base stations and base station thereof

Abstract

The application discloses a data transmission method based on multiple uplink optical port base stations and a base station thereof. The method comprises the following steps: connecting multiple optical interfaces with a core network at the base station side; distinguishing transmission services into high-priority services and low-priority services according to the priority of the transmission services at the base station side; and backing up between the multiple optical interfaces. The base station comprises a baseband processing unit and a radio frequency unit. The method and the base station thereof adopt multiple optical interfaces to perform data transmission, thereby improving the data transmission capacity of the base station. Different services are transmitted by different optical interfaces, thereby ensuring the priority processing of the high-priority services. The backup of data transmission between different optical interfaces enables the services to be quickly switched to another normal optical interface when one optical interface fails.

Description

Technical Field

[0001] This invention belongs to the field of wireless communication technology, specifically relating to a data transmission method based on multiple uplink optical port base stations and the base station thereof. Background Technology

[0002] A base station (BS), or public mobile communication base station, is a type of radio station. It refers to a radio transceiver station that transmits and receives information between a mobile communication switching center and a mobile phone terminal within a limited radio coverage area. The base station is the basic unit in mobile communication, completing the communication and management functions between the mobile communication network and mobile communication users.

[0003] Currently, base stations typically use an optical interface to connect to the core network. This interface is used to send base station data to the core network and to receive data from the core network.

[0004] For example, Chinese invention patent application CN201210088461.X discloses a method for downlink data transmission from a distributed base station, including:

[0005] The baseband processing device receives downlink data signals transmitted from the router and extracts WLAN AP downlink data and cellular network downlink data from the downlink data signals;

[0006] The downlink data from the WLAN AP is forwarded and the downlink data from the cellular network is processed using baseband.

[0007] The processed WLAN AP downlink data and cellular network downlink data are mixed to form a single downlink hybrid transmission data stream, which is then transmitted to the radio frequency remote device via the fiber optic interface.

[0008] For example, Chinese invention patent application CN201510681121.1 discloses a wireless base station, which includes at least: a data exchange and transmission module, a wireless processing module, a radio frequency module, and a radio frequency antenna.

[0009] The radio frequency antenna is suitable for providing wireless communication services to user terminals;

[0010] The radio frequency module is suitable for receiving or transmitting wireless radio frequency signals;

[0011] The wireless processing module is adapted to package received or transmitted wireless radio frequency signals to generate corresponding data packets, and is also adapted to analyze the destination address of the data packets.

[0012] The data exchange and transmission module includes a DSL interface, an optical fiber interface, and an RJ45 interface, and is suitable for exchanging data according to the destination address of the data packet when transmitting data packets and using different types of interfaces.

[0013] The aforementioned existing technologies all use a single fiber optic interface for data transmission, which results in a technical problem of weak data transmission capability.

[0014] Based on the aforementioned technical problems in the existing technology, this invention proposes a data transmission method and a base station based on multiple uplink optical port base stations. Summary of the Invention

[0015] The purpose of this invention is to address the shortcomings of existing technologies by providing a data transmission method and base station based on multiple uplink optical port base stations.

[0016] The present invention adopts the following technical solution:

[0017] On one hand, the present invention provides a data transmission method based on multiple uplink optical port base stations, including:

[0018] Step 1: Set up multiple optical interfaces on the base station side to connect with the core network;

[0019] Step 2: On the base station side, transmission services are divided into high-priority services and low-priority services according to their priority. High-priority services and low-priority services are transmitted through different optical interfaces.

[0020] Step 3: Make backups among multiple optical interfaces. When an optical interface transmitting data malfunctions, transfer the data transmission function of the malfunctioning optical interface to the backup optical interface.

[0021] Furthermore, step 1, which involves setting up multiple optical interfaces on the base station side to connect with the core network, also includes:

[0022] The base station receives optical interface configuration information from the management plane and then sends the optical interface configuration information to the base station's forwarding control module.

[0023] Furthermore, in step 1, the forwarding control module receives the GTPU message from the user plane U-plane and sends the message out from the uplink service port of the base station.

[0024] Furthermore, in step 1, the forwarding control module receives packets from the uplink service port of the base station and sends the packets to the user plane U-plane for GTPU packet processing.

[0025] Furthermore, step 1, which involves setting up multiple optical interfaces on the base station side to connect with the core network, also includes:

[0026] Based on the optical interface configuration information of the management plane, multiple user plane data sessions (PDCP sessions) are established between the base station and the core network.

[0027] Furthermore, step 1, which involves setting up multiple optical interfaces on the base station side to connect with the core network, also includes:

[0028] When a terminal accesses a base station, the base station transmits data through different PDCP sessions and from different optical interfaces, based on the optical interface configuration information of the management plane.

[0029] Further, step 2 includes: the terminal accesses the base station, and when the base station transmits data, it identifies the priority of the terminal's services. High-priority services are transmitted through a PDCP session and sent out from one optical interface; low-priority services are transmitted through another PDCP session and sent out from another optical interface.

[0030] Furthermore, in step 3, during data transmission, the terminal accesses the base station, and the base station sends the data through the working PDCP session and optical interface according to the optical interface configuration information of the management plane.

[0031] Furthermore, in step 3, when a certain optical interface malfunctions and cannot function, the base station identifies the malfunctioning optical interface and switches the terminal data to another PDCP session and another optical interface for transmission.

[0032] On the other hand, the present invention provides a base station applied to a data transmission method, comprising:

[0033] The baseband processing unit, connected to the core network, is used to complete uplink and downlink baseband data processing and signal synchronization;

[0034] The radio frequency (RF) unit, connected to the baseband processing unit, is used to perform RF signal modulation and demodulation, power amplification, filtering, and duplexing functions.

[0035] Furthermore, the baseband processing unit is also used to send uplink data to the core network and receive downlink data from the core network.

[0036] Furthermore, the baseband processing unit is also used for base station resource management, software management, operation and maintenance, signaling processing, and system clock management.

[0037] Furthermore, the baseband processing unit is provided with an interface connected to the radio frequency unit.

[0038] Furthermore, the baseband processing unit is equipped with a physical interface between the base station and the transmission network, and is capable of information exchange and remote maintenance.

[0039] Furthermore, the baseband processing unit is used to send uplink GTPU data to the core network through the transmission network and to receive downlink GTPU data from the core network.

[0040] Furthermore, the baseband processing unit is equipped with a USB interface for near-end maintenance.

[0041] Furthermore, the baseband processing unit is equipped with a communication interface with the environmental monitoring equipment to receive and forward signals from the environmental monitoring equipment.

[0042] The beneficial effects of this application are:

[0043] The data transmission method and base station based on multiple uplink optical ports described in this application use multiple optical interfaces for data transmission to improve the data transmission capability of the base station; different optical interfaces are used to transmit different services to ensure priority processing of high-priority services; and data transmission is backed up between different optical interfaces so that if one optical interface fails, the service can quickly switch to another normal optical interface. Attached Figure Description

[0044] Figure 1 This is a schematic diagram illustrating the simultaneous transmission of data via multiple optical interfaces in an embodiment of this application.

[0045] Figure 2 This is a flowchart illustrating the workflow for backup between multiple optical interfaces in this application embodiment;

[0046] Figure 3 This is a flowchart illustrating the workflow of 5G access services and WiFi access services in the embodiments of this application. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0048] The embodiments of this application involve the operator configuring processing rules for the base station, the base station classifying and identifying user data, and the base station forwarding the identified classified data respectively.

[0049] Example

[0050] The data transmission method based on multiple uplink optical port base stations includes:

[0051] Multiple optical interfaces can transmit data simultaneously;

[0052] like Figure 1As shown, the base station receives configuration information from the management plane and then sends the configuration information to the base station's forwarding control module.

[0053] Based on the configuration information of the management plane, the base station establishes multiple PDCP sessions with the core network.

[0054] When a terminal accesses a base station, the base station transmits data through different optical interfaces via different PDCP sessions, based on the configuration information of the management plane.

[0055] Specifically, such as Figure 1 As shown, the base station receives configuration information from the management plane and then sends the configuration information to the base station's forwarding control module.

[0056] Based on the configuration information of the management plane, the base station establishes multiple PDCP sessions with the core network.

[0057] When a terminal accesses a base station, the base station identifies the priority of the terminal's services during data transmission. High-priority services are transmitted through a single PDCP session and sent out from a specific optical interface; low-priority services are transmitted through a different PDCP session and sent out from a different optical interface.

[0058] Backups are made between multiple optical interfaces.

[0059] For example, in Figure 1 In this process, terminal services of different priorities are sent out through different optical interfaces. Terminal 1's service is a low-priority service, while Terminal 2's service is a high-priority service.

[0060] For example, the configuration information can be configured manually by the user;

[0061] It should be noted that the base station distinguishes between high-priority and low-priority services and transmits them through different optical interfaces. The two optical interfaces / PDCP sessions are planned with different service priorities in the entire transmission network. The higher-priority channel has a higher QoS guarantee and will be processed first.

[0062] In a specific implementation, priority can be distinguished by the value of the TCI field in the VLAN header of the packet or the value of the DSCP field in the IP header.

[0063] For example, data with VLAN TCI values ​​of 0-3 in the user packet goes through SFP optical interface 0, and data with VLAN TCI values ​​of 4-7 goes through SFP optical interface 1; or data with TCI values ​​of 0-3 in the IP header TOS field of the user packet goes through SFP optical interface 0, and data with TOS values ​​of 4-7 in the IP header TOS field goes through SFP optical interface 1. During transmission and forwarding, high-priority services can be guaranteed to use independent channels, ensuring that high-priority services are processed first.

[0064] like Figure 2 As shown, the base station receives configuration information from the management plane and then sends the configuration information to the base station's forwarding control module.

[0065] Based on the configuration information of the management plane, the base station establishes multiple PDCP sessions with the core network.

[0066] When a terminal accesses a base station, during data transmission, the base station sends the data out through the working PDCP session / optical interface according to the configuration information of the management plane.

[0067] When a certain optical interface malfunctions and fails to work, the base station quickly identifies the change and switches the terminal data to another PDCP session / optical interface for transmission.

[0068] For example, in Figure 2 In the process, terminal data is sent out through optical interface 0. If optical interface 0 fails, the data is sent out through optical interface 1.

[0069] like Figure 3 As shown, taking 5G access service and WiFi access service as examples, mobile user data accessed via 5G is a high-priority data service, and the forwarding channel is optical interface 0; mobile user data accessed via WiFi is a low-priority data service, and the forwarding channel is optical interface 1.

[0070] The base station applied to the data transmission method includes:

[0071] The baseband processing unit, connected to the core network, is used to complete uplink and downlink baseband data processing and signal synchronization;

[0072] The radio frequency (RF) unit, connected to the baseband processing unit, is used to perform RF signal modulation and demodulation, power amplification, filtering, and duplexing functions.

[0073] In a specific implementation, the baseband processing unit is also used to send uplink data to the core network and receive downlink data from the core network;

[0074] For example, the baseband processing unit is also used for base station resource management, software management, operation and maintenance, signaling processing and system clock management;

[0075] As a specific implementation, the baseband processing unit is provided with an interface connected to the radio frequency unit;

[0076] As a specific implementation method, the baseband processing unit is equipped with a physical interface between the base station and the transmission network, and is capable of information interaction and remote maintenance.

[0077] In a specific implementation, the baseband processing unit is used to send uplink GTPU data to the core network through the transmission network and receive downlink GTPU data from the core network.

[0078] As a specific implementation, the baseband processing unit is provided with a USB interface for near-end maintenance;

[0079] In a specific implementation, the baseband processing unit is provided with a communication interface with the environmental monitoring equipment to receive and forward signals from the environmental monitoring equipment.

[0080] This invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims.

Claims

1. A data transmission method based on multiple uplink optical port base stations, characterized in that, include: Step 1: Set up multiple optical interfaces on the base station side to connect with the core network. The base station receives the optical interface configuration information from the management plane and sends the optical interface configuration information to the base station's forwarding control module. Step 2: On the base station side, transmission services are divided into high-priority services and low-priority services according to their priority. High-priority services and low-priority services are transmitted through different optical interfaces. When the terminal accesses the base station, the base station identifies the priority of the terminal's service during data transmission. High-priority services are transmitted through one PDCP session and sent out from one optical interface; low-priority services are transmitted through another PDCP session and sent out from another optical interface. Step 3: Backup is performed among multiple optical interfaces. When an optical interface transmitting data malfunctions, the data transmission function of the malfunctioning optical interface is transferred to the backup optical interface. When transmitting data, the terminal connects to the base station, and the base station sends the data through the working PDCP session and optical interface according to the optical interface configuration information of the management plane. When an optical interface malfunctions and cannot work, the base station identifies the malfunctioning optical interface and switches the terminal data to another PDCP session and another optical interface for transmission.

2. A base station applied to the data transmission method based on multiple uplink optical port base stations as described in claim 1, characterized in that, include: The baseband processing unit, connected to the core network, is used to complete uplink and downlink baseband data processing and signal synchronization; The radio frequency (RF) unit, connected to the baseband processing unit, is used to perform RF signal modulation and demodulation, power amplification, filtering, and duplexing functions.

3. The base station applied to the data transmission method according to claim 2, characterized in that, The baseband processing unit is also used for: base station resource management, software management, operation and maintenance, signaling processing and system clock management.

4. The base station applied to the data transmission method according to claim 2, characterized in that, The baseband processing unit has a physical interface between the base station and the transmission network, and is capable of information exchange and remote maintenance.

5. The base station applied to the data transmission method according to claim 2, characterized in that, The baseband processing unit is equipped with a communication interface with the environmental monitoring equipment to receive and forward signals from the environmental monitoring equipment.

6. The base station applied to the data transmission method according to claim 2, characterized in that, The baseband processing unit is used to send uplink GTPU data to the core network through the transmission network and to receive downlink GTPU data from the core network.

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