WO2017101084A1 - 协议转换方法及装置 - Google Patents

协议转换方法及装置 Download PDF

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Publication number
WO2017101084A1
WO2017101084A1 PCT/CN2015/097747 CN2015097747W WO2017101084A1 WO 2017101084 A1 WO2017101084 A1 WO 2017101084A1 CN 2015097747 W CN2015097747 W CN 2015097747W WO 2017101084 A1 WO2017101084 A1 WO 2017101084A1
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Prior art keywords
rru
protocol
protocol conversion
cpri
ethernet
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PCT/CN2015/097747
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English (en)
French (fr)
Inventor
包盛花
连学国
屈涛
王星
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020187002641A priority Critical patent/KR102118072B1/ko
Priority to JP2018500624A priority patent/JP6556320B2/ja
Priority to EP15910555.0A priority patent/EP3307015B1/en
Priority to CN201580085402.9A priority patent/CN108370614B/zh
Priority to PCT/CN2015/097747 priority patent/WO2017101084A1/zh
Priority to CA2992112A priority patent/CA2992112C/en
Priority to CN202110516765.0A priority patent/CN113395259A/zh
Publication of WO2017101084A1 publication Critical patent/WO2017101084A1/zh
Priority to US15/909,645 priority patent/US10523791B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a protocol conversion method and apparatus.
  • an interface between a Baseband Unit (BBU) and a Remote Radio Unit (RRU), and between different RRUs is called a wireless front-end transmission interface (fronthaul interface).
  • wireless front-end transmission interfaces such as the Common Public Radio Interface (CPRI), the interface between the BRU and the RRU (Interface between the RRU and the BBU, IR), and the Open Base Station Architecture (Open Base Station Architecture). Initiative, OBSAI), Open Radio Equipment Interface (ORI), etc.
  • CPRI Common Public Radio Interface
  • OBSAI Open Base Station Architecture
  • OBSAI Open Base Station Architecture
  • ORI Open Radio Equipment Interface
  • the new BBU and the new RRU can be connected through the Ethernet protocol.
  • the existing network has a large number of traditional RRUs that support the CPRI protocol. These traditional RRUs are difficult to connect to the RoE-based network.
  • the embodiments of the present invention provide a protocol conversion method and apparatus, so that a network based on a RoE interface is compatible with a traditional RRU.
  • a protocol conversion method including: a protocol conversion apparatus implements frequency synchronization and time synchronization with a baseband unit BBU through an Ethernet protocol; and the protocol conversion apparatus obtains frequency synchronization information and time synchronization information from an Ethernet interface.
  • the protocol conversion device will synchronize the frequency information Converting the time synchronization information to the frequency synchronization information and the time synchronization information of the common universal radio interface CPRI protocol format; the protocol conversion device sends the converted frequency synchronization information and the time synchronization information to the radio remote unit RRU through the CPRI interface, where The RRU supports the CPRI protocol.
  • the protocol conversion device converts the synchronization information of the Ethernet protocol format into the synchronization information of the CPRI protocol format and sends the synchronization information to the traditional RRU, so that the traditional RRU is synchronized with the new BBU.
  • the method further includes: the protocol conversion device scans the RRU according to a CPRI protocol topology scanning manner to obtain topology information of the RRU; and the protocol conversion device performs the device according to an Ethernet protocol.
  • the topology information is reported to the BBU.
  • the protocol conversion device reports the traditional RRU topology information to the new BBU through the Ethernet message format, so that the new BBU can identify the traditional RRU according to the topology information.
  • the method further includes: when the protocol conversion device and the RRU are a slow control management channel Transmitting, by the protocol, the high-speed data link control HDLC address to the RRU; the protocol conversion device initiating a dynamic host configuration protocol DHCP request for the RRU agent, obtaining an Internet Protocol IP address of the RRU, and establishing a a mapping relationship between the IP address and the HDLC address; the protocol conversion device identifies, according to the mapping relationship between the IP address and the HDLC address, a control management packet sent by the BBU to the RRU, and the The control management packet is converted into an HDLC packet, and the HDLC packet is assembled into a CPRI frame, and the CPRI frame is sent to the RRU.
  • the method further includes: the protocol conversion apparatus receives a CPRI frame from the RRU; and obtains an HDLC from the CPRI frame.
  • the packet is converted into an Ethernet protocol packet and sent to the BBU.
  • the method further includes: when the protocol conversion device and the RRU are fast control management channels
  • the protocol conversion device identifies an Ethernet protocol control management message sent by the BBU to the RRU; the protocol conversion device assembles the Ethernet protocol control management message into a CPRI frame, And sending the CPRI frame to the RRU.
  • the method further includes: the protocol conversion apparatus receiving a CPRI frame sent by the RRU, parsing out from the CPRI frame The Ethernet protocol controls the management message; the protocol conversion device sends the Ethernet protocol control management message to the BBU.
  • the protocol conversion device performs protocol conversion on the C&M packet, so that the new BBU and the legacy RRU communicate with each other to control the maintenance surface data.
  • the method further includes: the protocol conversion apparatus receiving, by the BBU, at least one Ethernet packet carrying user plane data, according to the Ethernet
  • the destination IP address carried in the packet identifies an Ethernet packet sent to the RRU; the protocol conversion device extracts a payload from the Ethernet packet sent to the RRU, and the payload is in accordance with the CPRI.
  • the protocol frame format requires format conversion, and the formatted payload is carried in a CPRI frame and sent to the RRU.
  • the method further includes: the protocol conversion apparatus receiving a CPRI frame from the RRU, and extracting a payload from the CPRI frame
  • the protocol conversion device carries the payload in at least one Ethernet packet, and sends the Ethernet packet to the BBU.
  • the protocol conversion apparatus performs protocol conversion on the user plane data, so that the user plane data is exchanged between the new BBU and the legacy RRU.
  • the method further includes: obtaining, by the protocol conversion device, a delay of the BBU to the protocol conversion device according to an Ethernet protocol; the protocol conversion device Obtaining a delay of the protocol conversion device to the RRU according to a CPRI protocol; the protocol conversion device obtains an Ethernet protocol to CPRI protocol conversion processing delay; the protocol conversion device sends the BBU to the protocol conversion device
  • the delay, the delay of the protocol conversion device to the RRU, and the Ethernet protocol to CPRI protocol conversion processing delay are added to obtain an end-to-end delay of the BBU to the RRU, and the end is The end delay is reported to the BBU.
  • the protocol conversion device Calculate the end-to-end delay of the new BBU to the traditional RRU and report it to the new BBU to facilitate the new BBU to process subsequent wireless services.
  • a second aspect provides a protocol conversion apparatus, including a first transceiver unit, a processing unit, and a second transceiver unit; the first transceiver unit is configured to be connected to the baseband unit BBU through an Ethernet interface; And performing frequency synchronization and time synchronization with the baseband unit BBU by using an Ethernet protocol, obtaining frequency synchronization information and time synchronization information from the Ethernet interface, and converting the frequency synchronization information and the time synchronization information into a common universal The frequency synchronization information and the time synchronization information of the radio interface CPRI protocol format; the second transceiver unit is configured to send the converted frequency synchronization information and the time synchronization information to the radio remote unit RRU through the CPRI interface, where the RRU supports CPRI agreement.
  • the protocol conversion device converts the synchronization information of the Ethernet protocol format into the synchronization information of the CPRI protocol format and sends the synchronization information to the traditional RRU, so that the traditional RRU is synchronized with the new BBU.
  • the processing unit is further configured to scan the RRU according to a CPRI protocol topology scanning manner, obtain topology information of the RRU, and pass the topology information according to an Ethernet protocol.
  • the first transceiver unit reports to the BBU.
  • the protocol conversion device reports the traditional RRU topology information to the new BBU through the Ethernet message format, so that the new BBU can identify the traditional RRU according to the topology information.
  • the processing unit is a slow control management channel between the protocol conversion device and the RRU And configuring, by the RRU, a high-speed data link control HDLC address, initiating a dynamic host configuration protocol DHCP request for the RRU proxy, obtaining an Internet Protocol IP address of the RRU, and establishing the IP address and the HDLC.
  • the mapping relationship between the IP address and the HDLC address is used to identify the control management packet sent by the BBU to the RRU, and convert the control management packet into an HDLC packet.
  • the HDLC message is assembled into a CPRI frame; the second transceiver unit is further configured to send the CPRI frame to the RRU.
  • the second transceiver unit is further configured to receive a CPRI frame from the RRU; the processing unit is further configured to: The HDLC packet is obtained from the CPRI frame, and the HDLC packet is converted into an Ethernet protocol packet. The first transceiver unit is further configured to send the Ethernet protocol packet to the BBU.
  • the processing unit when the protocol conversion device and the RRU are fast control management channels, The second transceiver unit is further configured to: identify an Ethernet protocol control management packet sent by the BBU to the RRU, and assemble the Ethernet control management packet into a CPRI frame; A CPRI frame is sent to the RRU.
  • the second transceiver unit is further configured to receive a CPRI frame sent by the RRU, and the processing unit is further configured to: The Ethernet protocol control management packet is parsed in the CPRI frame; the first transceiver unit is further configured to send the Ethernet protocol control management packet to the BBU.
  • the protocol conversion device performs protocol conversion on the C&M packet, so that the new BBU and the legacy RRU communicate with each other to control the maintenance surface data.
  • the first transceiver unit is further configured to receive at least one Ethernet packet carrying user plane data from the BBU; And identifying, by the destination IP address carried in the Ethernet packet, an Ethernet packet sent to the RRU, extracting a payload from the Ethernet packet sent to the RRU, and using the payload
  • the format conversion is performed according to the frame format requirement of the CPRI protocol, and the formatted converted payload is carried in the CPRI frame.
  • the second transceiver unit is further configured to send the CPRI frame to the RRU.
  • the second transceiver unit is further configured to receive a CPRI frame from the RRU, where the processing unit is further used to The payload is extracted from the CPRI frame, and the payload is carried in at least one Ethernet packet.
  • the first transceiver unit is further configured to send the Ethernet packet to the BBU.
  • the protocol conversion apparatus performs protocol conversion on the user plane data, so that the user plane data is exchanged between the new BBU and the legacy RRU.
  • the processing unit is further configured to: Obtaining a delay of the BBU to the protocol conversion device according to an Ethernet protocol, obtaining a delay of the protocol conversion device to the RRU according to a CPRI protocol, and obtaining an Ethernet protocol to CPRI protocol conversion processing delay, where The delay from the BBU to the protocol conversion device, the delay of the protocol conversion device to the RRU, and the delay of the Ethernet protocol to the CPRI protocol conversion process to obtain the end-to-end of the BBU to the RRU
  • the first transceiver unit is further configured to report the end-to-end delay to the BBU.
  • the protocol conversion device calculates the end-to-end delay of the new BBU to the traditional RRU, and reports it to the new BBU, so that the new BBU can process the subsequent wireless service.
  • FIG. 1 is a schematic diagram of a CPRI protocol architecture in the prior art
  • FIG. 2 is a schematic structural diagram of a networking according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of another networking according to an embodiment of the present disclosure.
  • FIG. 4 is a flowchart of a protocol conversion method according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of another method for protocol conversion according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of another method for protocol conversion according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of another protocol conversion method according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of another protocol conversion method according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of another method for protocol conversion according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another networking according to an embodiment of the present disclosure.
  • FIG. 11 is a structural block diagram of a protocol conversion apparatus according to an embodiment of the present invention.
  • the CPRI protocol architecture is shown in Figure 1, which consists of three planes and two layers.
  • the three planes are User plane, Control and Management plane (C&M plane) and Synchronization (SYN); the two layers are physical layer (Layer 1, L1) and data link layer (Layer). 2, L2).
  • User plane data includes the user's in-phase and quadrature data (IQ data) And control word (CtlWord);
  • control management surface data includes Ethernet (Ethernet) data, High-Level Data Link Control (HDLC) data and control word (CtlWord), wherein Ethernet data is used for fast control Management (Fast C&M), HDLC data is used for slow control management (Slow C&M);
  • the synchronization plane can use L1 Inband Protocol.
  • L1 mainly defines a time division multiplexing characteristic, an electrical transmission characteristic, an optical transmission characteristic, and the like.
  • the RRU that supports only the CPRI protocol exists in the live network.
  • the networking scenario is as shown in Figure 2 or Figure 3. Since the traditional RRU only supports the CPRI protocol, it cannot communicate normally with the new BBU.
  • the BBU and the RRU supporting the Ethernet protocol are referred to as a new BBU and a new RRU, and the RRU supporting the CPRI protocol is referred to as a conventional RRU.
  • the embodiment of the invention provides a protocol conversion method and device, which realizes conversion of different protocols and solves the above problems.
  • the protocol conversion device may be an independent device or integrated in a new RRU.
  • the traditional RRU can implement interconnection with a new BBU or RRU through the protocol conversion device.
  • the CPRI interface refers to a wireless front-end transmission interface that supports the CPRI protocol
  • the RoE interface refers to a wireless front-end transmission interface that supports an Ethernet protocol.
  • an embodiment of the present invention provides a protocol conversion method, including:
  • the protocol conversion device implements frequency synchronization and time synchronization with the new BBU through the Ethernet protocol.
  • the protocol conversion device can synchronize the frequency and time of the new BBU with Synchronization Ethernet (SyncE) and IEEE 1588, or only IEEE 1588.
  • Synchronization Ethernet Synchronization Ethernet
  • the protocol conversion device obtains frequency synchronization information and time synchronization information from an Ethernet interface.
  • the protocol conversion device converts the frequency synchronization information and the time synchronization information into frequency synchronization information and time synchronization information in a CPRI protocol format.
  • the protocol conversion device converts the obtained frequency synchronization information and time synchronization information into frequency synchronization information and time synchronization information required by the conventional RRU according to the CPRI protocol.
  • the protocol conversion apparatus sends the converted frequency synchronization information and time synchronization information to the traditional RRU through the CPRI interface.
  • the frequency synchronization information can be carried in the physical layer signal.
  • the traditional RRU can achieve frequency synchronization without parsing the CPRI frame; the time synchronization information can be carried in the CPRI frame.
  • the protocol conversion device converts the synchronization information of the Ethernet protocol format into the synchronization information of the CPRI protocol format and sends the synchronization information to the traditional RRU, so that the traditional RRU is synchronized with the new BBU.
  • an embodiment of the present invention provides another method for protocol conversion, including:
  • the protocol conversion device scans the traditional RRU connected thereto according to the topology scanning mode of the CPRI protocol, and obtains topology information of the traditional RRU.
  • the protocol conversion device reports the topology information to the new BBU according to the Ethernet protocol.
  • the protocol conversion device reports the traditional RRU topology information to the new BBU through the Ethernet message format, so that the new BBU can identify the traditional RRU according to the topology information.
  • the following describes the topology configuration method by taking the protocol conversion device integrated in the new RRU as an example.
  • the new RRU can be configured in the RRU physical identification mode.
  • Each new RRU is numbered in the radio network planning diagram, and the Subscriber Identity Module (SIM) card number (SIM card label) corresponding to each new RRU is identified.
  • the RRU numbering rule station number + RRU number
  • the RRU identification code is pre-written in the SIM card; in the field construction, the SIM card is inserted into the corresponding new RRU according to the connection diagram; when the station is opened, the RRU identification code and the RRU number (the cabinet slot number) are set on the network management platform.
  • the mapping relationship is downloaded to the base station, and the base station configuration data is configured according to the RRU number.
  • the above physical identifier is the RRU identification code.
  • the traditional RRU is based on the topology location of the new RRU according to the traditional configuration of the branch link + HOP number, that is, the relative topology setting of the traditional RRU is configured based on the new RRU.
  • RCN chain number
  • TT chain type
  • HCN cabinet number
  • HSRN frame number
  • HSN slot number
  • HPN port number
  • the new RRU scans the topology information of the traditional RRU link that is connected to the new RBU according to the topology of the CPRI.
  • the new BBU can report the traditional RRU according to the configuration of the branch link.
  • the embodiment of the invention provides another protocol conversion method, which mainly relates to the process of controlling and managing C&M messages. Since the CPRI protocol defines two control and management C&M channels: slow C&M channel and fast C&M channel, the following two cases are introduced separately.
  • a method for protocol conversion is directed to a case where a slow C&M channel is between a protocol conversion device and a conventional RRU, including:
  • the protocol conversion device allocates an HDLC address to the traditional RRU.
  • the protocol conversion device initiates a dynamic host configuration protocol (DHCP) request for the traditional RRU proxy, obtains an Internet Protocol (IP) address of the traditional RRU, and establishes a mapping relationship between the IP address and the HDLC address.
  • DHCP dynamic host configuration protocol
  • IP Internet Protocol
  • the protocol conversion device identifies the C&M packet sent by the new BBU to the traditional RRU according to the mapping relationship between the IP address and the HDLC address, and converts the packet into an HDLC packet, and assembles the HDLC packet into the CPRI frame, and the CPRI is used.
  • the frame is sent to the traditional RRU.
  • Step 603 is an operation of the downlink protocol conversion device on the C&M message.
  • the above method further includes:
  • the protocol conversion device receives the CPRI frame from the traditional RRU, and obtains the HDLC message, and converts the HDLC message into an Ethernet protocol message and sends the message to the new BBU.
  • a protocol conversion method is provided for protocol conversion loading.
  • a fast C&M channel including:
  • the protocol conversion apparatus identifies an Ethernet protocol C&M packet sent by the new BBU to the traditional RRU.
  • the protocol conversion apparatus assembles the foregoing Ethernet protocol C&M message into the CPRI frame, and sends the foregoing CPRI frame to the traditional RRU.
  • the above steps 701 and 702 are operations of the downlink protocol conversion device on the C&M message.
  • the above method further includes:
  • the protocol conversion apparatus receives the CPRI frame sent by the traditional RRU, and parses the Ethernet protocol C&M message from the CPRI frame.
  • the protocol conversion apparatus sends an Ethernet protocol C&M message to the new BBU.
  • the C&M report text is based on the Ethernet protocol, so the traditional RRU does not need to re-apply for an IP address, the IP address can be used to identify the traditional RRU, and the protocol conversion device only needs to be completed.
  • the CPRI frame of the C&M message can be deframed.
  • the protocol conversion device performs protocol conversion on the C&M packet, so that the new BBU and the traditional RRU communicate with each other to control the maintenance surface data.
  • the embodiment of the present invention provides another method for protocol conversion, including:
  • the protocol conversion device receives at least one Ethernet packet carrying the user plane data from the new BBU, and identifies the Ethernet packet sent to the traditional RRU according to the destination IP address carried in the Ethernet packet.
  • the user plane data needs to be carried in one or more Ethernet packets.
  • the Ethernet packet carries the destination IP address corresponding to the traditional RRU.
  • the protocol conversion device extracts a payload from the Ethernet packet sent to the traditional RRU, converts the payload according to the CPRI frame format, and carries the formatted payload into the CPRI frame and sends the payload to the CPRI frame.
  • Traditional RRU extracts a payload from the Ethernet packet sent to the traditional RRU, converts the payload according to the CPRI frame format, and carries the formatted payload into the CPRI frame and sends the payload to the CPRI frame.
  • the protocol conversion device After the protocol conversion device extracts the payload, since the CPRI protocol has a format requirement for the IQ data in the CPRI frame, the payload needs to be formatted according to the above format requirements before the format conversion is performed. Can be carried in a CPRI frame.
  • the above steps 801 and 802 are operations of the downlink protocol conversion device on the user plane data. In the uplink direction, the above method further includes:
  • the protocol conversion apparatus receives the CPRI frame from the legacy RRU, and extracts the payload from the CPRI frame.
  • the protocol conversion apparatus carries the payload into at least one Ethernet packet, and sends the Ethernet packet to the new BBU.
  • the protocol conversion device performs protocol conversion on the user plane data, so that the user plane data is exchanged between the new BBU and the traditional RRU.
  • the embodiment of the present invention provides another method for protocol conversion, including:
  • the protocol conversion device obtains a delay of the new BBU to the protocol conversion device according to the Ethernet protocol.
  • the protocol conversion apparatus obtains a delay of the protocol conversion apparatus to the traditional RRU according to the CPRI protocol.
  • the protocol conversion device obtains a delay from the Ethernet protocol to the CPRI protocol conversion processing.
  • the protocol conversion device adds the foregoing three delays to obtain an end-to-end delay of the new BBU to the traditional RRU, and reports the end-to-end delay to the new BBU.
  • the time delay of the new BBU to the protocol conversion apparatus, the delay of the protocol conversion apparatus to the delay of the conventional RRU, and the location of the Ethernet protocol to the CPRI protocol conversion processing delay Delay3 may refer to the networking shown in FIG. Structure diagram.
  • the networking structure shown in FIG. 10 is equally applicable to other embodiments.
  • the main step of the delay measurement method in the Ethernet protocol is that the protocol conversion device first synchronizes with the new BBU, and carries the timestamp in the service packet. After the service packet arrives at the peer end, the time of the peer end is related to the timestamp of the service packet. Subtract the delay from the protocol conversion device to the new BBU.
  • the main step of the delay measurement method in the CPRI protocol is that after the protocol conversion device synchronizes with the traditional RRU, the loopback method is used to measure the delay between the two.
  • the protocol conversion device calculates the end-to-end delay of the new BBU to the traditional RRU, and reports the delay to the new BBU, so that the new BBU can process the subsequent wireless service.
  • the end-to-end delay measurement may also be implemented by other network elements or devices.
  • the protocol conversion apparatus can also identify an Ethernet interface or a CPRI interface.
  • Embodiments of the present invention further provide an apparatus embodiment for performing the foregoing protocol conversion method, where The method steps, principles, technical effects, and the like can be referred to the foregoing method embodiments, and will not be described again.
  • an embodiment of the present invention provides a protocol conversion apparatus, including a first transceiver unit 111, a processing unit 112, and a second transceiver unit 113;
  • the first transceiver unit 111 is configured to connect to the new BBU through an Ethernet interface.
  • the processing unit 112 is configured to obtain frequency synchronization information and time synchronization information with the new BBU through the Ethernet protocol, obtain frequency synchronization information and time synchronization information from the Ethernet interface, and convert the frequency synchronization information and the time synchronization information into a common universal wireless interface CPRI protocol. Formatted frequency synchronization information and time synchronization information.
  • the second transceiver unit 113 is configured to send the converted frequency synchronization information and time synchronization information to the traditional RRU through the CPRI interface.
  • the first transceiver unit is not necessarily directly connected to the new BBU, and other devices, such as a new RRU, may be available between the protocol conversion device and the new BBU.
  • the processing unit 112 is further configured to scan the traditional RRU according to the CPRI protocol topology scanning manner, obtain the topology information of the traditional RRU, and report the topology information to the new BBU through the first transceiver unit 111 according to the Ethernet protocol. .
  • the processing unit 112 is further configured to allocate a high-speed data link control HDLC address for the traditional RRU, initiate a dynamic host configuration protocol DHCP request for the traditional RRU proxy, obtain an Internet Protocol IP address of the traditional RRU, and establish a mapping relationship between the IP address and the HDLC address. And identifying, according to the mapping relationship between the IP address and the HDLC address, the control management packet sent by the new BBU to the traditional RRU, and converting the foregoing control management packet into an HDLC packet, and assembling the HDLC packet into the CPRI frame;
  • the second transceiver unit 113 is further configured to send the foregoing CPRI frame to the traditional RRU.
  • the second transceiver unit 113 is further configured to receive a CPRI frame from the traditional RRU;
  • the processing unit 112 is further configured to: obtain an HDLC packet from the CPRI frame, and convert the HDLC packet into an Ethernet protocol packet;
  • the first transceiver unit 111 is further configured to send the foregoing Ethernet protocol packet to the new BBU.
  • the processing unit 112 is further configured to identify an Ethernet protocol control management packet sent by the new BBU to the traditional RRU, and assemble the Ethernet control management packet into the CPRI frame.
  • the second transceiver unit 113 is further configured to send the foregoing CPRI frame to the traditional RRU.
  • the second transceiver unit 113 is further configured to receive the CPRI frame sent by the traditional RRU.
  • the processing unit 112 is further configured to parse the Ethernet protocol control management message from the CPRI frame.
  • the first transceiver unit 111 is further configured to send the foregoing Ethernet protocol control management packet to the new BBU.
  • the first transceiver unit 111 is further configured to receive at least one Ethernet packet carrying user plane data from the new BBU;
  • the processing unit 112 is further configured to: identify, according to the destination IP address carried in the Ethernet packet, an Ethernet packet sent to the traditional RRU, and extract a payload from the Ethernet packet sent to the traditional RRU, and the foregoing is effective.
  • the payload is format-converted according to the frame format of the CPRI protocol, and the formatted converted payload is carried in the CPRI frame;
  • the second transceiver unit 113 is further configured to send the foregoing CPRI frame to the traditional RRU.
  • the second transceiver unit 113 is further configured to receive a CPRI frame from the legacy RRU;
  • the processing unit 112 is further configured to: extract a payload from the foregoing CPRI frame, and carry the payload in at least one Ethernet packet;
  • the first transceiver unit 111 is further configured to send the foregoing Ethernet packet to the new BBU.
  • the processing unit 112 is further configured to obtain a delay of the new BBU to the protocol conversion device according to the Ethernet protocol, obtain a delay of the protocol conversion device to the traditional RRU according to the CPRI protocol, and obtain an Ethernet protocol to CPRI protocol conversion processing delay, delay of new BBU to protocol conversion device, The delay of the protocol conversion device to the traditional RRU, the Ethernet protocol to the CPRI protocol conversion processing delay are added to obtain the end-to-end delay of the new BBU to the traditional RRU;
  • the first transceiver unit 111 is further configured to report the end-to-end delay to the new BBU.
  • the first transceiver unit may be a transceiver
  • the second transceiver unit may be another transceiver
  • the processing unit may be a processor.
  • the protocol conversion device can be one or more chips, and the processor can invoke the instructions stored in the memory to implement the functions of the processing unit described above.
  • the protocol conversion device may be an independent device, and the networking structure may be as shown in FIG. 10; the protocol conversion device may also be integrated into the BBU or the RRU.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • connection may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
  • coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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Abstract

本发明实施例提供了一种协议转换方法及装置，以实现基于RoE接口的网络兼容传统RRU。协议转换方法包括：协议转换装置通过以太网协议实现和基带单元BBU的频率同步和时间同步；所述协议转换装置从以太网接口获得频率同步信息和时间同步信息；所述协议转换装置将所述频率同步信息和时间同步信息转换为公共通用无线接口CPRI协议格式的频率同步信息和时间同步信息；所述协议转换装置将转换后的频率同步信息和时间同步信息通过CPRI接口发送给射频拉远单元RRU，其中所述RRU支持CPRI协议。

Description

协议转换方法及装置 技术领域
本发明实施例涉及通信技术领域，尤其涉及一种协议转换方法及装置。
背景技术
无线通信系统中，基带单元(Baseband Unit，BBU)与射频拉远单元(Remote Radio Unit,RRU)之间，以及不同RRU之间的接口称为无线前端传输接口(fronthaul接口)。无线前端传输接口有多种类型，例如公共通用无线接口(Common Public Radio Interface，CPRI)、BBU与RRU的接口(Interface between the RRU and the BBU，IR)、开放式基站架构计划(Open Base Station Architecture Initiative，OBSAI)、开放无线设备接口(Open Radio Equipment Interface，ORI)等。随着无线技术的高速发展，为了满足BBU与RRU灵活组网的需求，基于以太网承载的无线前端传输接口(Radio over Ethernet,RoE)被广泛研究。RoE接口基于以太网(Ethernet，ETH)协议，允许通信的多个节点之间进行复杂的组网。
基于RoE接口的网络中，新BBU和新RRU可以通过以太网协议相连接，但现网中存有大量的支持CPRI协议的传统RRU，这些传统RRU难以连接到基于RoE接口的网络中。
发明内容
有鉴于此，本发明实施例提供了一种协议转换方法及装置，以实现基于RoE接口的网络兼容传统RRU。
第一方面，提供了一种协议转换方法，包括：协议转换装置通过以太网协议实现和基带单元BBU的频率同步和时间同步；所述协议转换装置从以太网接口获得频率同步信息和时间同步信息；所述协议转换装置将所述频率同步信息 和时间同步信息转换为公共通用无线接口CPRI协议格式的频率同步信息和时间同步信息；所述协议转换装置将转换后的频率同步信息和时间同步信息通过CPRI接口发送给射频拉远单元RRU，其中所述RRU支持CPRI协议。该方案中，协议转换装置将Ethernet协议格式的同步信息转化为CPRI协议格式的同步信息并发送给传统RRU，使传统RRU实现与新BBU的同步。
在第一方面第一种可能的实现方式中，所述方法还包括：协议转换装置按照CPRI协议拓扑扫描方式扫描所述RRU，获得所述RRU的拓扑信息；协议转换装置按照以太网协议将所述拓扑信息上报给所述BBU。该方案中，协议转换装置将传统RRU拓扑信息通过以太网消息格式上报给新BBU，使得新BBU能根据拓扑信息够识别传统RRU。
结合第一方面或第一方面第一种可能的实现方式，在第二种可能的实现方式中，所述方法还包括：当所述协议转换装置与所述RRU之间是慢速控制管理通道时，所述协议转换为所述RRU分配高速数据链路控制HDLC地址；所述协议转换装置为所述RRU代理发起动态主机配置协议DHCP请求，获得所述RRU的互联网协议IP地址，并建立所述IP地址与所述HDLC地址的映射关系；所述协议转换装置根据所述IP地址与所述HDLC地址的映射关系识别出所述BBU发送给所述RRU的控制管理报文，并将所述控制管理报文转换成HDLC报文，将所述HDLC报文组装到CPRI帧中，将所述CPRI帧发送给所述RRU。
结合第一方面第二种可能的实现方式，在第三种可能的实现方式中，所述方法还包括：所述协议转换装置接收来自所述RRU的CPRI帧；从所述CPRI帧中获取HDLC报文，将所述HDLC报文转换为以太网协议报文并发送给所述BBU。
结合第一方面或第一方面第一种可能的实现方式，在第四种可能的实现方式中，所述方法还包括：当所述协议转换装置与所述RRU之间是快速控制管理通道时，所述协议转换装置识别出所述BBU发送给所述RRU的以太网协议控制管理报文；协议转换装置将所述以太网协议控制管理报文组装到CPRI帧中， 并将所述CPRI帧发送给所述RRU。
结合第一方面第四种可能的实现方式，在第五种可能的实现方式中，所述方法还包括：所述协议转换装置接收所述RRU发送的CPRI帧，从所述CPRI帧中解析出以太网协议控制管理报文；所述协议转换装置将所述以太网协议控制管理报文发送给所述BBU。
第二至第五种可能的实现方式中，协议转换装置对C&M报文进行协议转换，使新BBU和传统RRU之间互通控制维护面数据。
结合前述任一方案，在第六种可能的实现方式中，所述方法还包括：所述协议转换装置接收来自所述BBU的至少一个承载用户面数据的以太网报文，根据所述以太网报文携带的目的IP地址识别出发送给所述RRU的以太网报文；所述协议转换装置从所述发送给所述RRU的以太网报文中提取有效载荷，将所述有效载荷按照CPRI协议帧格式要求进行格式转换，将格式转换后的所述有效载荷承载在CPRI帧中发送给所述RRU。
结合第一方面第六种可能的实现方式，在第七种可能的实现方式中，所述方法还包括：所述协议转换装置从所述RRU接收CPRI帧，从所述CPRI帧中提取有效载荷；所述协议转换装置将所述有效载荷承载在至少一个以太网报文中，将所述以太网报文发送给所述BBU。
第六和第七种可能的实现方式中，协议转换装置对用户面数据进行协议转换，使新BBU和传统RRU之间互通用户面数据。
结合前述任一方案，在第八种可能的实现方式中，所述方法还包括：所述协议转换装置按照以太网协议获得所述BBU到所述协议转换装置的时延；所述协议转换装置按照CPRI协议获得所述协议转换装置到所述RRU的时延；所述协议转换装置获得以太网协议到CPRI协议转换处理时延；所述协议转换装置将所述BBU到所述协议转换装置的时延、所述协议转换装置到所述RRU的时延、所述以太网协议到CPRI协议转换处理时延相加获得所述BBU到所述RRU的端到端时延，并将所述端到端时延上报给所述BBU。该方案中，协议转换装置计 算得到新BBU到传统RRU的端到端时延，并上报给新BBU，便于新BBU处理后续无线业务
第二方面，提供了一种协议转换装置，包括第一收发单元、处理单元、第二收发单元；所述第一收发单元，用于通过以太网接口与基带单元BBU相连接；所述处理单元，用于通过以太网协议实现和所述基带单元BBU的频率同步和时间同步，从所述以太网接口获得频率同步信息和时间同步信息，将所述频率同步信息和时间同步信息转换为公共通用无线接口CPRI协议格式的频率同步信息和时间同步信息；所述第二收发单元，用于将转换后的频率同步信息和时间同步信息通过CPRI接口发送给射频拉远单元RRU，其中所述RRU支持CPRI协议。该方案中，协议转换装置将Ethernet协议格式的同步信息转化为CPRI协议格式的同步信息并发送给传统RRU，使传统RRU实现与新BBU的同步。
在第二方面第一种可能的实现方式中，所述处理单元，还用于按照CPRI协议拓扑扫描方式扫描所述RRU，获得所述RRU的拓扑信息，按照以太网协议将所述拓扑信息通过所述第一收发单元上报给所述BBU。该方案中，协议转换装置将传统RRU拓扑信息通过以太网消息格式上报给新BBU，使得新BBU能根据拓扑信息够识别传统RRU。
结合第二方面或第二方面第一种可能的实现方式，在第二种可能的实现方式中，所述处理单元，在所述协议转换装置与所述RRU之间是慢速控制管理通道时，还用于为所述RRU分配高速数据链路控制HDLC地址，为所述RRU代理发起动态主机配置协议DHCP请求，获得所述RRU的互联网协议IP地址，并建立所述IP地址与所述HDLC地址的映射关系，根据所述IP地址与所述HDLC地址的映射关系识别出所述BBU发送给所述RRU的控制管理报文，并将所述控制管理报文转换成HDLC报文，将所述HDLC报文组装到CPRI帧中；所述第二收发单元，还用于将所述CPRI帧发送给所述RRU。
结合第二方面第二种可能的实现方式，在第三种可能的实现方式中，所述第二收发单元，还用于接收来自所述RRU的CPRI帧；所述处理单元，还用于 从所述CPRI帧中获取HDLC报文，将所述HDLC报文转换为以太网协议报文；所述第一收发单元，还用于将所述以太网协议报文发送给所述BBU。
结合第二方面或第二方面第一种可能的实现方式，在第四种可能的实现方式中，所述处理单元，在所述协议转换装置与所述RRU之间是快速控制管理通道时，还用于识别出所述BBU发送给所述RRU的以太网协议控制管理报文，将所述以太网控制管理报文组装到CPRI帧中；所述第二收发单元，还用于将所述CPRI帧发送给所述RRU。
结合第二方面第四种可能的实现方式，在第五种可能的实现方式中，所述第二收发单元，还用于接收所述RRU发送的CPRI帧；所述处理单元，还用于从所述CPRI帧中解析出以太网协议控制管理报文；所述第一收发单元，还用于将所述以太网协议控制管理报文发送给所述BBU。
第二至第五种可能的实现方式中，协议转换装置对C&M报文进行协议转换，使新BBU和传统RRU之间互通控制维护面数据。
结合前述任一方案，在第六种可能的实现方式中，所述第一收发单元，还用于接收来自所述BBU的至少一个承载用户面数据的以太网报文；所述处理单元，还用于根据所述以太网报文携带的目的IP地址识别出发送给所述RRU的以太网报文，从所述发送给所述RRU的以太网报文中提取有效载荷，将所述有效载荷按照CPRI协议帧格式要求进行格式转换，将格式转换后的所述有效载荷承载在CPRI帧中；所述第二收发单元，还用于将所述CPRI帧发送给所述RRU。
结合第二方面第六种可能的实现方式，在第七种可能的实现方式中，所述第二收发单元，还用于从所述RRU接收CPRI帧；所述处理单元，还用于从所述CPRI帧中提取有效载荷，将所述有效载荷承载在至少一个以太网报文中；所述第一收发单元，还用于将所述以太网报文发送给所述BBU。
第六和第七种可能的实现方式中，协议转换装置对用户面数据进行协议转换，使新BBU和传统RRU之间互通用户面数据。
结合前述任一方案，在第八种可能的实现方式中，所述处理单元，还用于 按照以太网协议获得所述BBU到所述协议转换装置的时延，按照CPRI协议获得所述协议转换装置到所述RRU的时延，获得以太网协议到CPRI协议转换处理时延，将所述BBU到所述协议转换装置的时延、所述协议转换装置到所述RRU的时延、所述以太网协议到CPRI协议转换处理时延相加获得所述BBU到所述RRU的端到端时延；所述第一收发单元，还用于将所述端到端时延上报给所述BBU。该方案中，协议转换装置计算得到新BBU到传统RRU的端到端时延，并上报给新BBU，便于新BBU处理后续无线业务
附图说明
图1为现有技术中CPRI协议架构图；
图2为本发明实施例提供的一种组网结构图；
图3为本发明实施例提供的另一种组网结构图；
图4为本发明实施例提供的一种协议转换方法流程图；
图5为本发明实施例提供的另一种协议转换方法流程图；
图6为本发明实施例提供的另一种协议转换方法流程图；
图7为本发明实施例提供的另一种协议转换方法流程图；
图8为本发明实施例提供的另一种协议转换方法流程图；
图9为本发明实施例提供的另一种协议转换方法流程图；
图10为本发明实施例提供的另一种组网结构图；
图11为本发明实施例提供的一种协议转换装置结构框图。
具体实施方式
CPRI协议架构如图1所示，包括三个平面两个层。三个平面分别为用户面(User plane)、控制管理面(Control and Management plane,C&M plane)和同步(Synchronization,SYN)；两层为物理层(Layer 1,L1)和数据链路层(Layer 2,L2)。用户面数据包括用户的同相正交数据(In-phase and Quadrature data,IQ data) 和控制字(CtlWord)；控制管理面数据包括以太网(Ethernet)数据、高速数据链路控制(High-Level Data Link Control，HDLC)数据和控制字(CtlWord)，其中，Ethernet数据用于快速控制管理(Fast C&M)，HDLC数据用于慢速控制管理(Slow C&M)；同步面可以使用L1带内协议(L1Inband Protocol)。L1主要定义了时分复用(Time Division Multiplexing)特性、电传输(Electrical Trans)特性、光传输(Optical Trans)特性等。
当BBU和RRU以Ethernet协议组网时，由于现网中存有仅支持CPRI协议的RRU，可能导致出现如图2或图3所示的组网场景。由于传统RRU仅支持CPRI协议，无法与新BBU正常通信。本发明后续实施例中，将支持以太网协议的BBU和RRU称为新BBU和新RRU，将支持CPRI协议的RRU称为传统RRU。
本发明实施例提供了一种协议转换方法和装置，实现不同协议的转换，解决如上问题。本发明实施例中，协议转换装置可以是独立的设备，也可以集成于新RRU中。传统RRU可以通过该协议转换装置实现与新BBU或者RRU的互联。本发明后续实施例中，CPRI接口是指支持CPRI协议的无线前端传输接口，RoE接口是指支持以太网协议的无线前端传输接口。
如图4所示，本发明实施例提供了一种协议转换方法，包括：
401、协议转换装置通过Ethernet协议实现和新BBU的频率同步和时间同步。
协议转换装置可以通过同步以太协议(Synchronization Ethernet，SyncE)和IEEE1588，或者仅IEEE1588实现和新BBU的频率和时间同步。
402、协议转换装置从以太网接口获得频率同步信息和时间同步信息。
403、协议转换装置将上述频率同步信息和时间同步信息转换为CPRI协议格式的频率同步信息和时间同步信息。
协议转换装置按照CPRI协议将获得的频率同步信息和时间同步信息转换为传统RRU所需的频率同步信息和时间同步信息。
404、协议转换装置将上述转换后的频率同步信息和时间同步信息通过CPRI接口发送给传统RRU。
频率同步信息可以携带在物理层信号里，传统RRU无需解析CPRI帧即可实现频率同步；时间同步信息可以携带在CPRI帧里。
上述实施例中，协议转换装置将Ethernet协议格式的同步信息转化为CPRI协议格式的同步信息并发送给传统RRU，使传统RRU实现与新BBU的同步。
如图5所示，本发明实施例提供了另一种协议转换方法，包括：
501、协议转换装置按照CPRI协议拓扑扫描方式扫描与其连接的传统RRU，获得传统RRU的拓扑信息；
502、协议转化装置按照以太网协议将上述拓扑信息上报给新BBU。
上述实施例中，协议转换装置将传统RRU拓扑信息通过以太网消息格式上报给新BBU，使得新BBU能根据拓扑信息够识别传统RRU。
下面以协议转换装置集成于新RRU中为例来说明拓扑配置方法。
新RRU可以按照RRU物理标识方式配置。射频组网规划图中为每个新RRU编号，同时标识每个新RRU对应的用户标识模块(Subscriber Identity Module，SIM)卡号(SIM卡贴标签)，RRU编号规则：站(site)编号+RRU编号，SIM卡中预先写入RRU识别码；在现场施工时，根据连线图将SIM卡插入相应的新RRU中；开站时，在网管平台上将RRU识别码和RRU编号(柜框槽号)映射关系下载到基站，基站配置数据根据RRU编号配置。
新RRU配置命令示例：
ADD RRU(RRU地址)：CN(柜号)＝0，SRN(框号)＝60，SN(槽号)＝0，PHYID(物理标识)＝xxxx；
上述物理标识即RRU识别码。
传统RRU基于新RRU的拓扑位置按照分支链环+HOP号的传统配置方式，即基于新RRU来配置传统RRU的相对拓扑置位。先基于新RRU节点位置配置一个传统RRU链，再在此链上配置传统RRU。
传统RRU的配置命令示例：
ADD RRUCHAIN(RRU链环地址)：RCN(链环编号)＝1,TT(链环类型)＝CHAIN,HCN(柜号)＝0,HSRN(框号)＝60,HSN(槽号)＝0,HPN(端口号)＝0；
ADD RRU(RRU地址)：CN(柜号)＝0,SRN(框号)＝61,SN(槽号)＝0,TP(主干or分支)＝BRANCH,RCN(链环编号)＝1,PS(Hop号)＝0。
新RRU按照CPRI协议拓扑扫描方式扫描其下挂的传统RRU链环的拓扑信息，并按照以太网协议格式上报给新BBU，新BBU就可以根据分支链环的配置情况来识别传统RRU。
本发明实施例提供了另一种协议转换方法，主要涉及控制管理C&M报文的处理。由于CPRI协议中定义了两种控制管理C&M通道：慢速C&M通道和快速C&M通道，下面分两种情况分别介绍。
如图6所示，为本发明实施例提供的一种协议转换方法，针对协议转换装置与传统RRU之间是慢速C&M通道的情况，包括：
601、协议转换装置为传统RRU分配HDLC地址。
602、协议转换装置为传统RRU代理发起动态主机配置协议(Dynamic Host Configuration Protocol，DHCP)请求，获得传统RRU的互联网协议(Internet Protocol，IP)地址，并建立IP地址与HDLC地址的映射关系。
603、协议转换装置根据IP地址与HDLC地址的映射关系识别出新BBU发送给传统RRU的C&M报文，并将上述报文转换成HDLC报文，将HDLC报文组装到CPRI帧中，将CPRI帧发送给传统RRU。
步骤603是下行方向协议转换装置对C&M报文的操作。在上行方向，上述方法还包括：
604、协议转换装置接收来自传统RRU的CPRI帧，并从中获取HDLC报文，将HDLC报文转换为以太网协议报文发送给新BBU。
如图7所示，为本发明实施例提供的一种协议转换方法，针对协议转换装 置与传统RRU之间是快速C&M通道的情况，包括：
701、协议转换装置识别出新BBU发送给传统RRU的以太网协议C&M报文。
702、协议转换装置将上述以太网协议C&M报文组装到CPRI帧中，并将上述CPRI帧发送给传统RRU。
上述步骤701和702是下行方向协议转换装置对C&M报文的操作。在上行方向，上述方法还包括：
703、协议转换装置接收传统RRU发送的CPRI帧，从CPRI帧中解析出以太网协议C&M报文。
704、协议转换装置将以太网协议C&M报文发送给新BBU。
协议转换装置与传统RRU之间是快速C&M通道时，C&M报文本身就是基于以太网协议的，因此传统RRU不需要重新申请IP地址，IP地址可以用于标识传统RRU，协议转换装置只需完成C&M报文的CPRI组帧解帧即可。
上述实施例中，协议转换装置对C&M报文进行协议转换，使新BBU和传统RRU之间互通控制维护面数据。
如图8所示，本发明实施例提供了另一种协议转换方法，包括：
801、协议转换装置接收来自新BBU的至少一个承载用户面数据的以太网报文，根据以太网报文携带的目的IP地址识别出发送给传统RRU的以太网报文。
新BBU向传统RRU发送用户面数据时，需要将用户面数据承载在一个或多个以太网报文中，以太网报文携带有传统RRU对应的目的IP地址。
802、协议转换装置从上述发送给传统RRU的以太网报文中提取有效载荷(payload)，将有效载荷按照CPRI帧格式要求进行格式转换，将格式转换后的有效载荷承载到CPRI帧中发送给传统RRU。
协议转换装置提取出有效载荷后，因为CPRI协议对CPRI帧中的IQ数据有格式要求，因此需要先将有效载荷按照上述格式要求进行格式转换，然后才 能承载在CPRI帧中。上述步骤801、802是下行方向协议转换装置对用户面数据的操作。在上行方向，上述方法还包括：
803、协议转换装置从传统RRU接收CPRI帧，从CPRI帧中提取有效载荷。
804、协议转换装置将所述有效载荷承载到至少一个以太网报文中，将以太网报文发送至新BBU。
上述实施例中，协议转换装置对用户面数据进行协议转换，使新BBU和传统RRU之间互通用户面数据。
如图9所示，本发明实施例提供了另一种协议转换方法，包括：
901、协议转换装置按照以太网协议获得新BBU到协议转换装置的时延。
902、协议转换装置按照CPRI协议获得协议转换装置到传统RRU的时延。
903、协议转换装置获得Ethernet协议到CPRI协议转换处理时延。
904、协议转换装置将上述三个时延相加得到新BBU到传统RRU的端到端时延，将上述端到端时延上报给新BBU。
上述实施例中，新BBU到协议转换装置的时延Delay1、协议转换装置到传统RRU的时延Dealy2、Ethernet协议到CPRI协议转换处理时延Delay3所产生的位置可以参照图10所示的组网结构图。图10所示的组网结构同样适用于其他实施例。Ethernet协议中时延测量方法主要步骤是，协议转换装置首先实现与新BBU的同步，在业务报文中携带时间戳，业务报文到达对端后，对端的时间与业务报文的时间戳相减即可获得协议转换装置到新BBU的时延。CPRI协议中时延测量方法主要步骤是，协议转换装置与传统RRU实现同步后，用环回方法测量两者之间的时延。
上述实施例中，协议转换装置计算得到新BBU到传统RRU的端到端时延，并上报给新BBU，便于新BBU处理后续无线业务。
本发明实施例中，端到端时延测量也可由其他网元或装置实现。
本发明实施例中，协议转换装置还可以识别Ethernet接口或者CPRI接口。
本发明实施例进一步给出执行上述协议转换方法的装置实施例，其中具体 方法步骤、原理、技术效果等可以参考前述方法实施例，后文不再赘述。
如图11所示，本发明实施例提供了一种协议转换装置，包括第一收发单元111、处理单元112、第二收发单元113；
第一收发单元111，用于通过以太网接口与新BBU相连接。
处理单元112，用于通过以太网协议实现和新BBU的频率同步和时间同步，从以太网接口获得频率同步信息和时间同步信息，将频率同步信息和时间同步信息转换为公共通用无线接口CPRI协议格式的频率同步信息和时间同步信息。
第二收发单元113，用于将转换后的频率同步信息和时间同步信息通过CPRI接口发送给传统RRU。
需要说明的是，本发明实施例中个，第一收发单元并不一定与新BBU直接相连，协议转换装置与新BBU之间可以有其他设备，例如新RRU等。
本发明实施例中可选的，处理单元112，还用于按照CPRI协议拓扑扫描方式扫描传统RRU，获得传统RRU的拓扑信息，按照以太网协议将拓扑信息通过第一收发单元111上报给新BBU。
本发明实施例中可选的，当协议转换装置与传统RRU之间是慢速C&M通道时，在下行方向：
处理单元112，还用于为传统RRU分配高速数据链路控制HDLC地址，为传统RRU代理发起动态主机配置协议DHCP请求，获得传统RRU的互联网协议IP地址，并建立IP地址与HDLC地址的映射关系，根据IP地址与HDLC地址的映射关系识别出新BBU发送给上述传统RRU的控制管理报文，并将上述控制管理报文转换成HDLC报文，将上述HDLC报文组装到CPRI帧中；
第二收发单元113，还用于将上述CPRI帧发送给上述传统RRU。
本发明实施例中可选的，在上行方向：
第二收发单元113，还用于接收来自传统RRU的CPRI帧；
处理单元112，还用于从上述CPRI帧中获取HDLC报文，将HDLC报文转换为以太网协议报文；
第一收发单元111，还用于将上述以太网协议报文发送给上述新BBU。
本发明实施例中可选的，当协议转换装置与传统RRU之间是快速C&M通道时，在下行方向：
处理单元112，还用于识别出新BBU发送给传统RRU的以太网协议控制管理报文，将以太网控制管理报文组装到CPRI帧中；
第二收发单元113，还用于将上述CPRI帧发送给上述传统RRU。
本发明实施例中可选的，在上行方向：
第二收发单元113，还用于接收上述传统RRU发送的CPRI帧；
处理单元112，还用于从上述CPRI帧中解析出以太网协议控制管理报文；
第一收发单元111，还用于将上述以太网协议控制管理报文发送给新BBU。
本发明实施例中可选的，针对用户面数据，在下行方向：
第一收发单元111，还用于接收来自新BBU的至少一个承载用户面数据的以太网报文；
处理单元112，还用于根据上述以太网报文携带的目的IP地址识别出发送给传统RRU的以太网报文，从上述发送给上述传统RRU的以太网报文中提取有效载荷，将上述有效载荷按照CPRI协议帧格式要求进行格式转换，将格式转换后的所述有效载荷承载在CPRI帧中；
第二收发单元113，还用于将上述CPRI帧发送给上述传统RRU。
本发明实施例中可选的，在上行方向：
第二收发单元113，还用于从传统RRU接收CPRI帧；
处理单元112，还用于从上述CPRI帧中提取有效载荷，将上述有效载荷承载在至少一个以太网报文中；
第一收发单元111，还用于将上述以太网报文发送给新BBU。
本发明实施例中可选的，处理单元112，还用于按照以太网协议获得新BBU到协议转换装置的时延，按照CPRI协议获得协议转换装置到传统RRU的时延，获得以太网协议到CPRI协议转换处理时延，将新BBU到协议转换装置的时延、 协议转换装置到传统RRU的时延、以太网协议到CPRI协议转换处理时延相加获得上述新BBU到上述传统RRU的端到端时延；
第一收发单元111，还用于将上述端到端时延上报给上述新BBU。
需要说明的是，在具体产品实现时，上述第一收发单元可以是收发器，第二收发单元可以是另一收发器，处理单元可以是处理器。协议转换装置可以是一个或多个芯片，处理器可以调用存储在存储器中的指令实现上述处理单元的功能。
本发明实施例中可选的，协议转换装置可以是独立的设备，组网结构可以如图10所示；协议转换装置也可以集成于BBU或者RRU中。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发明可以用硬件实现，或固件实现，或它们的组合方式来实现。当使用软件实现时，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括RAM、ROM、EEPROM、CD-ROM或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本发明所使用的，盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常磁性的复制数据，而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之，以上所述仅为本发明技术方案的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (18)

  1. 一种协议转换方法，其特征在于，所述方法包括：
    协议转换装置通过以太网协议实现和基带单元BBU的频率同步和时间同步；
    所述协议转换装置从以太网接口获得频率同步信息和时间同步信息；
    所述协议转换装置将所述频率同步信息和时间同步信息转换为公共通用无线接口CPRI协议格式的频率同步信息和时间同步信息；
    所述协议转换装置将转换后的频率同步信息和时间同步信息通过CPRI接口发送给射频拉远单元RRU，其中所述RRU支持CPRI协议。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述协议转换装置按照CPRI协议拓扑扫描方式扫描所述RRU，获得所述RRU的拓扑信息；
    所述协议转换装置按照以太网协议将所述拓扑信息上报给所述BBU。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    当所述协议转换装置与所述RRU之间是慢速控制管理通道时，所述协议转换为所述RRU分配高速数据链路控制HDLC地址；
    所述协议转换装置为所述RRU代理发起动态主机配置协议DHCP请求，获得所述RRU的互联网协议IP地址，并建立所述IP地址与所述HDLC地址的映射关系；
    所述协议转换装置根据所述IP地址与所述HDLC地址的映射关系识别出所述BBU发送给所述RRU的控制管理报文，并将所述控制管理报文转换成HDLC报文，将所述HDLC报文组装到CPRI帧中，将所述CPRI帧发送给所述RRU。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    所述协议转换装置接收来自所述RRU的CPRI帧；
    所述协议转换装置从所述CPRI帧中获取HDLC报文，将所述HDLC报文 转换为以太网协议报文并发送给所述BBU。
  5. 根据根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    当所述协议转换装置与所述RRU之间是快速控制管理通道时，所述协议转换装置识别出所述BBU发送给所述RRU的以太网协议控制管理报文；
    所述协议转换装置将所述以太网协议控制管理报文组装到CPRI帧中，并将所述CPRI帧发送给所述RRU。
  6. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    所述协议转换装置接收所述RRU发送的CPRI帧，从所述CPRI帧中解析出以太网协议控制管理报文；
    所述协议转换装置将所述以太网协议控制管理报文发送给所述BBU。
  7. 根据权利要求1-6任一所述的方法，其特征在于，所述方法还包括：
    所述协议转换装置接收来自所述BBU的至少一个承载用户面数据的以太网报文，根据所述以太网报文携带的目的IP地址识别出发送给所述RRU的以太网报文；
    所述协议转换装置从所述发送给所述RRU的以太网报文中提取有效载荷，将所述有效载荷按照CPRI协议帧格式要求进行格式转换，将格式转换后的所述有效载荷承载在CPRI帧中发送给所述RRU。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述协议转换装置从所述RRU接收CPRI帧，从所述CPRI帧中提取有效载荷；
    所述协议转换装置将所述有效载荷承载在至少一个以太网报文中，将所述以太网报文发送给所述BBU。
  9. 根据权利要求1-8任一所述的方法，其特征在于，所述方法还包括：
    所述协议转换装置按照以太网协议获得所述BBU到所述协议转换装置的时延；
    所述协议转换装置按照CPRI协议获得所述协议转换装置到所述RRU的时 延；
    所述协议转换装置获得以太网协议到CPRI协议转换处理时延；
    所述协议转换装置将所述BBU到所述协议转换装置的时延、所述协议转换装置到所述RRU的时延、所述以太网协议到CPRI协议转换处理时延相加获得所述BBU到所述RRU的端到端时延，并将所述端到端时延上报给所述BBU。
  10. 一种协议转换装置，其特征在于，所述协议转换装置包括第一收发单元、处理单元、第二收发单元；
    所述第一收发单元，用于通过以太网接口与基带单元BBU相连接；
    所述处理单元，用于通过以太网协议实现和所述基带单元BBU的频率同步和时间同步，从所述以太网接口获得频率同步信息和时间同步信息，将所述频率同步信息和时间同步信息转换为公共通用无线接口CPRI协议格式的频率同步信息和时间同步信息；
    所述第二收发单元，用于将转换后的频率同步信息和时间同步信息通过CPRI接口发送给射频拉远单元RRU，其中所述RRU支持CPRI协议。
  11. 根据权利要求10所述的协议转换装置，其特征在于：
    所述处理单元，还用于按照CPRI协议拓扑扫描方式扫描所述RRU，获得所述RRU的拓扑信息，按照以太网协议将所述拓扑信息通过所述第一收发单元上报给所述BBU。
  12. 根据权利要求10或11所述的协议转换装置，其特征在于：
    所述处理单元，在所述协议转换装置与所述RRU之间是慢速控制管理通道时，还用于为所述RRU分配高速数据链路控制HDLC地址，为所述RRU代理发起动态主机配置协议DHCP请求，获得所述RRU的互联网协议IP地址，并建立所述IP地址与所述HDLC地址的映射关系，根据所述IP地址与所述HDLC地址的映射关系识别出所述BBU发送给所述RRU的控制管理报文，并将所述控制管理报文转换成HDLC报文，将所述HDLC报文组装到CPRI帧中；
    所述第二收发单元，还用于将所述CPRI帧发送给所述RRU。
  13. 根据权利要求12所述的协议转换装置，其特征在于：
    所述第二收发单元，还用于接收来自所述RRU的CPRI帧；
    所述处理单元，还用于从所述CPRI帧中获取HDLC报文，将所述HDLC报文转换为以太网协议报文；
    所述第一收发单元，还用于将所述以太网协议报文发送给所述BBU。
  14. 根据权利要求10或11所述的协议转换装置，其特征在于：
    所述处理单元，在所述协议转换装置与所述RRU之间是快速控制管理通道时，还用于识别出所述BBU发送给所述RRU的以太网协议控制管理报文，将所述以太网控制管理报文组装到CPRI帧中；
    所述第二收发单元，还用于将所述CPRI帧发送给所述RRU。
  15. 根据权利要求14所述的协议转换装置，其特征在于：
    所述第二收发单元，还用于接收所述RRU发送的CPRI帧；
    所述处理单元，还用于从所述CPRI帧中解析出以太网协议控制管理报文；
    所述第一收发单元，还用于将所述以太网协议控制管理报文发送给所述BBU。
  16. 根据权利要求10-15任一所述的协议转换装置，其特征在于：
    所述第一收发单元，还用于接收来自所述BBU的至少一个承载用户面数据的以太网报文；
    所述处理单元，还用于根据所述以太网报文携带的目的IP地址识别出发送给所述RRU的以太网报文，从所述发送给所述RRU的以太网报文中提取有效载荷，将所述有效载荷按照CPRI协议帧格式要求进行格式转换，将格式转换后的所述有效载荷承载在CPRI帧中；
    所述第二收发单元，还用于将所述CPRI帧发送给所述RRU。
  17. 根据权利要求16所述的协议转换装置，其特征在于：
    所述第二收发单元，还用于从所述RRU接收CPRI帧；
    所述处理单元，还用于从所述CPRI帧中提取有效载荷，将所述有效载荷 承载在至少一个以太网报文中；
    所述第一收发单元，还用于将所述以太网报文发送给所述BBU。
  18. 根据权利要求10-17任一所述的协议转换装置，其特征在于：
    所述处理单元，还用于按照以太网协议获得所述BBU到所述协议转换装置的时延，按照CPRI协议获得所述协议转换装置到所述RRU的时延，获得以太网协议到CPRI协议转换处理时延，将所述BBU到所述协议转换装置的时延、所述协议转换装置到所述RRU的时延、所述以太网协议到CPRI协议转换处理时延相加获得所述BBU到所述RRU的端到端时延；
    所述第一收发单元，还用于将所述端到端时延上报给所述BBU。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110062437A (zh) * 2018-01-19 2019-07-26 大唐移动通信设备有限公司 一种射频拉远单元rru快速接入基站的方法及基站
US20220110017A1 (en) * 2019-01-21 2022-04-07 Telefonaktiebolaget Lm Ericsson (Publ) Methods and Apparatus for Transmitting Radio Data Over a Fronthaul Network

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017101084A1 (zh) * 2015-12-17 2017-06-22 华为技术有限公司 协议转换方法及装置
WO2019035750A1 (en) * 2017-08-17 2019-02-21 Telefonaktiebolaget Lm Ericsson (Publ) TRANSITION METHOD AND DEVICE FOR ESTABLISHING DATA COMMUNICATION IN A WIRELESS NETWORK
EP3723348B1 (en) * 2018-01-08 2022-12-28 Samsung Electronics Co., Ltd. Method for separating physical layer functions in wireless communication system
CN108738127B (zh) * 2018-04-13 2021-04-27 中国科学院微电子研究所 射频拉远单元、基带处理单元、分布式基站及其同步方法
US11153023B2 (en) 2019-04-05 2021-10-19 At&T Intellectual Property I, L.P. Reducing interference by combining signals at different strengths and transmitting the combined signal from an antenna
JP7362341B2 (ja) * 2019-08-05 2023-10-17 株式会社東芝 通信装置、通信中継システム、親局装置
KR102188743B1 (ko) 2019-10-29 2020-12-08 주식회사 이노와이어리스 다 채널 압축 알고리즘을 이용한 mu 및 ru 간의 데이터 통신 방법 및 장치
CN111212446B (zh) * 2019-12-31 2022-11-29 京信网络系统股份有限公司 数据处理方法、装置、计算机设备和存储介质
JP7287569B2 (ja) * 2020-03-11 2023-06-06 日本電気株式会社 通信装置、データ記録方法、及びプログラム
CN111464233A (zh) * 2020-05-18 2020-07-28 深圳市投资控股有限公司 一种用于海洋滑翔机组网通讯的中继转换器
CN114070442A (zh) * 2020-07-30 2022-02-18 上海诺基亚贝尔股份有限公司 不同通信方向上的呈现时间偏移量的自动对齐
KR102488902B1 (ko) * 2020-11-24 2023-01-17 주식회사 모베이스전자 자율주행차량의 센서 동기화와 프로토콜 변환시 발생하는 레이턴시 결정 방법 및 장치
CN112584457B (zh) * 2020-12-16 2023-01-10 福州锐迪优通讯科技有限公司 5G系统中pRRU在eCPRI协议和CPRI协议间混合组网方法
CN112637180B (zh) * 2020-12-18 2023-03-14 深圳国人无线通信有限公司 接口协议数据转换方法
US20220286910A1 (en) * 2021-03-08 2022-09-08 Commscope Technologies Llc Discovering a radio controller in a cloud radio access network

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101242435A (zh) * 2006-02-22 2008-08-13 华为技术有限公司 连接主基站与射频拉远单元的接口装置
CN101931454A (zh) * 2009-06-19 2010-12-29 大唐移动通信设备有限公司 基于以太网的射频拉远数据传输
WO2013007318A1 (en) * 2011-07-11 2013-01-17 Telefonaktiebolaget L M Ericsson (Publ) Apparatus and method for a passive optical network
CN103338478A (zh) * 2012-12-31 2013-10-02 上海华为技术有限公司 接口转接装置及方法
CN103404226A (zh) * 2013-06-07 2013-11-20 华为技术有限公司 一种传输数据的方法及设备

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0302596D0 (sv) * 2003-09-30 2003-09-30 Ericsson Telefon Ab L M Improvments in or relating to base stations
US7856029B2 (en) * 2003-11-17 2010-12-21 Telefonaktiebolaget Lm Ericsson (Publ) Pre-start-up procedure for internal interface of distributed radio base station
EP1566980A1 (de) * 2004-02-23 2005-08-24 Siemens Aktiengesellschaft Verfahren zum Übertragen von Daten innerhalb einer Basisstation eines Mobilfunksystems sowie entsprechende Basisstation
WO2005099282A1 (fr) * 2004-04-09 2005-10-20 Utstarcom Telecom Co., Ltd. Procede et systeme de transmission de signaux reposant sur une station de base a frequences radio
EP1744572A1 (de) 2005-07-13 2007-01-17 Siemens Aktiengesellschaft Übertragung von Ethernet-Paketen über eine CPRI-Schnittstelle
US8355715B2 (en) 2006-04-21 2013-01-15 Vixs Systems, Inc. Client module, multimedia server and methods for use therewith
US20080259839A1 (en) * 2007-01-09 2008-10-23 Sr Telecom Inc. Redundant wireless base station
CN101282517A (zh) * 2008-05-08 2008-10-08 华为技术有限公司 多模基站及其通信方法
US9072120B2 (en) * 2008-07-21 2015-06-30 Go Net Systems Ltd. Methods circuits and systems for providing cellular base station functionality at one or more nodes of a data network
CN101841364A (zh) 2009-03-20 2010-09-22 华为技术有限公司 数据的传送方法及相关设备
JP5041035B2 (ja) * 2010-06-04 2012-10-03 住友電気工業株式会社 無線装置及び無線基地局装置
US8599827B2 (en) * 2011-10-21 2013-12-03 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for maintaining synchronization between a radio equipment controller and an item of radio equipment
CA2864279C (en) * 2012-02-09 2019-06-11 Telefonaktiebolaget Lm Ericsson (Publ) A network node and a method therein enabling a first unit to connect or to be connected ad-hoc to a second unit
US9313827B2 (en) * 2012-12-31 2016-04-12 Broadcom Corporation Radio over ethernet for radio access network and cloud-RAN
US9668223B2 (en) * 2014-05-05 2017-05-30 Isco International, Llc Method and apparatus for increasing performance of communication links of communication nodes
EP2958358B1 (en) * 2014-06-17 2018-10-31 Sarokal Test Systems Oy System for base-station testing
US10039099B2 (en) * 2014-06-30 2018-07-31 Nec Corporation Wireless communication system and wireless communication method
WO2016178778A1 (en) * 2015-05-04 2016-11-10 Isco International, Llc Method and apparatus for increasing performance of communication paths for communication nodes
CN106358240B (zh) * 2015-07-17 2019-08-27 华为技术有限公司 一种虚拟弹性cpri接口的数据帧传输方法及装置
WO2017028933A1 (en) * 2015-08-20 2017-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Radio base station
CN106717111B (zh) * 2015-08-31 2020-10-23 华为技术有限公司 接收cpri数据流和接收以太网帧的方法、装置及系统
JP2017050730A (ja) * 2015-09-02 2017-03-09 富士通株式会社 無線装置および基地局システム
WO2017101084A1 (zh) * 2015-12-17 2017-06-22 华为技术有限公司 协议转换方法及装置
JP6600265B2 (ja) * 2016-03-11 2019-10-30 株式会社Ｎｔｔドコモ 無線通信システム及び基地局
US10075778B2 (en) * 2016-08-04 2018-09-11 Google Llc Base station with baseband bypass
US10225821B2 (en) * 2016-09-28 2019-03-05 Sprint Communications Company L.P. Wireless communication system control of carrier aggregation for a wireless relay
US10298279B2 (en) * 2017-04-05 2019-05-21 Isco International, Llc Method and apparatus for increasing performance of communication paths for communication nodes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101242435A (zh) * 2006-02-22 2008-08-13 华为技术有限公司 连接主基站与射频拉远单元的接口装置
CN101931454A (zh) * 2009-06-19 2010-12-29 大唐移动通信设备有限公司 基于以太网的射频拉远数据传输
WO2013007318A1 (en) * 2011-07-11 2013-01-17 Telefonaktiebolaget L M Ericsson (Publ) Apparatus and method for a passive optical network
CN103338478A (zh) * 2012-12-31 2013-10-02 上海华为技术有限公司 接口转接装置及方法
CN103404226A (zh) * 2013-06-07 2013-11-20 华为技术有限公司 一种传输数据的方法及设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3307015A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110062437A (zh) * 2018-01-19 2019-07-26 大唐移动通信设备有限公司 一种射频拉远单元rru快速接入基站的方法及基站
CN110062437B (zh) * 2018-01-19 2020-11-06 大唐移动通信设备有限公司 一种射频拉远单元rru快速接入基站的方法及基站
US20220110017A1 (en) * 2019-01-21 2022-04-07 Telefonaktiebolaget Lm Ericsson (Publ) Methods and Apparatus for Transmitting Radio Data Over a Fronthaul Network

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