CN107707475B - Data transmission method and system - Google Patents
Data transmission method and system Download PDFInfo
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- CN107707475B CN107707475B CN201610648364.XA CN201610648364A CN107707475B CN 107707475 B CN107707475 B CN 107707475B CN 201610648364 A CN201610648364 A CN 201610648364A CN 107707475 B CN107707475 B CN 107707475B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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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
Abstract
The invention provides a data transmission method and a system, wherein the method comprises the following steps: matching a route according to a destination address of downlink data to obtain a first route; wherein, the destination address of the downlink data is matched with the IP address of the remote unit; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. The invention solves the problems of complicated parameter configuration and even incapability of planning and configuring existing in the prior out-of-band Relay remote.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and system.
Background
With the development of mobile communication technology, in the current LTE (Long Term Evolution) network topology, there are some areas where wired transmission deployment is difficult. At present, in order to solve the problem of limited communication caused by difficult deployment of wired transmission, a solution of out-of-band Relay pull-out is proposed in an LTE system.
However, the solution of out-of-band Relay zooming has many problems: in the existing network, because the Relay base station needs to borrow a physical transmission port of the Donor base station, and VLAN IDs, network segments and gateways of the Donor base station and transmission equipment are planned and configured, if the network segment where the Donor base station is located has no IP resources, a new IP of the network segment needs to be added to the Relay base station, so that the complexity of the transmission parameter configuration of an operator is greatly increased, and even the situation that the transmission parameters of the Relay base station cannot be planned occurs.
Disclosure of Invention
The invention provides a data transmission method and a data transmission system, which are used for solving the problems that the parameter configuration is complex and even the configuration cannot be planned in the existing out-of-band Relay remote.
In order to solve the above problems, the present invention discloses a data transmission method, in which a backhaul module is wirelessly connected to a host base station through a WAN port of a wide area network and is wired to a remote unit through a LAN port of a local area network, the method comprising:
matching a route according to a destination address of downlink data to obtain a first route; wherein, the destination address of the downlink data is matched with the IP address of the remote unit;
according to the first route, sending the downlink data to a return proxy unit of the host base station;
and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address.
Preferably, the sending the downlink data to the WAN port of the backhaul module by the backhaul proxy unit through wireless includes:
configuring an internal tunneling protocol GTPU head for the downlink data according to the network segment of the destination address of the downlink data;
determining the service bearing of the downlink data;
and according to the service bearer, wirelessly transmitting the downlink data carrying the internal tunneling protocol GTPU head to a WAN port of a return module.
Preferably, the downlink data includes: internal downlink communication data and external downlink service data;
wherein, when the downlink data is downlink service data, the method further comprises:
and reconfiguring the destination address of the downlink service data according to the IP address of the remote unit.
Preferably, the method further comprises:
respectively configuring IP addresses of LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
The invention also discloses a data transmission method, wherein the return module is wirelessly connected with the host base station through a WAN port and is in wired connection with the remote unit through a LAN port, and the method comprises the following steps:
matching the route according to the destination address of the uplink data to obtain a second route; the destination address of the uplink data is matched with the IP address of the host base station;
and sending the uplink data to a LAN port of a backhaul module according to a second route, so that the backhaul module sends the uplink data to the host base station indicated by the destination address through a WAN port after receiving the uplink data.
Preferably, the method further comprises:
respectively configuring IP addresses of LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
The invention also discloses a data transmission system, comprising:
the first determining module is used for matching a route according to a destination address of downlink data to obtain a first route; the destination address of the downlink data is matched with the IP address of the remote unit;
a first sending module, configured to send the downlink data to a backhaul proxy unit of a host base station according to a first route;
and the second sending module is used for sending the downlink data to a WAN port of a backhaul module through the backhaul agent unit in a wireless manner, so that the backhaul module sends the downlink data to a remote unit through a LAN port according to the destination address.
Preferably, the second sending module includes:
the configuration submodule is used for configuring an internal tunneling protocol GTPU head for the downlink data according to the network segment of the destination address of the downlink data;
a determining submodule, configured to determine a service bearer of the downlink data;
and the sending submodule is used for wirelessly sending the downlink data carrying the internal tunneling protocol GTPU head to a WAN port of the return module according to the service bearer.
Preferably, the downlink data includes: internal downlink communication data and external downlink service data;
wherein, when the downlink data is downlink service data, the system further includes:
and the reconfiguration module is used for reconfiguring the destination address of the downlink service data according to the IP address of the remote unit.
Preferably, the system further comprises:
the first configuration module is used for respectively configuring the IP addresses of the LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
The invention also discloses a data transmission system, comprising:
the second determining module is used for matching the route according to the destination address of the uplink data to obtain a second route; the destination address of the uplink data is matched with the IP address of the host base station;
and the third sending module is used for sending the uplink data to the LAN port of the backhaul module according to the second route, so that the backhaul module sends the uplink data to the host base station indicated by the destination address through the WAN port after receiving the uplink data.
Preferably, the system further comprises:
the second configuration module is used for respectively configuring the IP addresses of the LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
Compared with the prior art, the invention has the following advantages:
the invention discloses a data transmission scheme, which matches a route according to a destination address of downlink data to obtain a first route; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. Therefore, in the invention, the remote unit can be used as a stacking base station of the host base station, the operation maintenance module of the base station does not need to be modified, the normal base station function does not need to be changed, the networking is convenient and fast, the communication between the remote unit and the host base station is directly realized through the route, new IP and other transmission parameters do not need to be planned for the remote unit, the deployment difficulty is reduced, and the deployment process is simplified.
Drawings
FIG. 1 is a flowchart illustrating steps of a data transmission method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of a data transmission method according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of a data transmission method according to a third embodiment of the present invention;
fig. 4 is a schematic diagram of an LTE cell remote networking according to a fourth embodiment of the present invention;
fig. 5 is a schematic diagram of downlink data transmission of internal data communication according to a fourth embodiment of the present invention;
fig. 6 is a schematic diagram of uplink data transmission in internal data communication according to a fourth embodiment of the present invention;
fig. 7 is a schematic diagram of downlink data transmission of service data according to a fourth embodiment of the present invention;
fig. 8 is a schematic diagram of uplink data transmission of service data according to a fourth embodiment of the present invention;
fig. 9 is a block diagram of a data transmission system according to a fifth embodiment of the present invention;
fig. 10 is a block diagram of a preferred data transmission system according to the fifth embodiment of the present invention;
fig. 11 is a block diagram of a data transmission system according to a sixth embodiment of the present invention;
fig. 12 is a block diagram of a preferred data transmission system according to the sixth embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
Referring to fig. 1, a flowchart illustrating steps of a data transmission method according to a first embodiment of the present invention is shown. In this embodiment, the data transmission method may be, but is not limited to, applied to data transmission between a host base station and a remote unit, where the host base station and the remote unit may implement cell-level remote by using a backhaul module, and the backhaul module is wirelessly connected to the host base station through a wan (wide Area network) port and is in wired connection with the remote unit through a lan (local Area network) port. The remote unit can be virtualized as a stacked base station under the host base station.
The data transmission method comprises the following steps:
and 102, matching the route according to the destination address of the downlink data to obtain a first route.
In this embodiment, the route may be matched according to a destination address of the downlink data, where when the destination address of the downlink data matches the IP address of the remote unit, the first route may be obtained through matching.
And 104, sending the downlink data to a return proxy unit of the host base station according to the first route.
In this embodiment, the gateway of the first route may be an IP address of the backhaul proxy unit under the donor base station. In other words, the downlink data may be directly transmitted to the backhaul proxy unit according to the first route.
And 106, wirelessly transmitting the downlink data to a WAN port of a backhaul module through the backhaul agent unit so that the backhaul module transmits the downlink data to a remote unit through a LAN port according to the destination address.
In this embodiment, the host base station sends the downlink data to the backhaul module through the backhaul proxy unit in any appropriate manner. After receiving the downlink data, the backhaul module may send the downlink data to a corresponding remote unit through an LAN port according to a destination address of the downlink data.
In summary, in the data transmission method according to this embodiment, a route is matched according to a destination address of downlink data, so as to obtain a first route; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
Example two
Referring to fig. 2, a flowchart illustrating steps of a data transmission method according to a second embodiment of the present invention is shown. In this embodiment, the data transmission method includes:
In this embodiment, the remote unit is equivalent to an internal stacking base station of the host base station, and the IP plan of each board card may be consistent with that of the stacking base station. For example, the IP addresses of the LAN ports respectively configuring the host base station, the remote unit and the backhaul module may be configured, but not limited to, as follows: 10.0.xx. (192+ coreid). Where xx may be determined by the subrack number (high 4 bits) and the slot number (low 4 bits).
Preferably, to simplify the internal communication, the internal masks of the remote unit and the host base station may be modified from 16-bit mask to 20-bit mask.
In this embodiment, the destination address of the downlink data matches the IP address of the remote unit.
The downlink data may include: internal downlink traffic data and external downlink traffic data. Preferably, when the downlink data is downlink service data, the destination address of the downlink service data may be reconfigured according to the IP address of the remote unit, so as to ensure that the destination address of the downlink service data matches with the IP address of the remote unit.
In this embodiment, the wirelessly sending the downlink data to the WAN port of the backhaul module by the backhaul proxy unit may specifically include: according to the network segment of the destination address of the downlink data, configuring an internal tunneling protocol (GTPU) (used for transmitting user data between a wireless access network and a core network in a GPRS core network) head for the downlink data; determining the service bearing of the downlink data; and according to the service bearer, wirelessly transmitting the downlink data carrying the internal tunneling protocol GTPU head to a WAN port of a return module.
In summary, in the data transmission method according to this embodiment, a route is matched according to a destination address of downlink data, so as to obtain a first route; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
EXAMPLE III
Referring to fig. 3, a flowchart illustrating steps of a data transmission method according to a third embodiment of the present invention is shown. In this embodiment, the data transmission method includes:
and step 302, matching the route according to the destination address of the uplink data to obtain a second route.
In this embodiment, the destination address of the uplink data matches the IP address of the host base station.
In this embodiment, the gateway corresponding to the second route may be an IP address of the LAN port of the backhaul module, and therefore, the uplink data may be sent to the LAN port of the backhaul module according to the second route. After receiving the uplink data, the backhaul module may send the uplink data to the host base station indicated by the destination address through the WAN port.
It should be noted that, in a preferred scheme of this embodiment, the IP addresses of the LAN ports of the host base station, the remote unit, and the backhaul module may be configured according to the machine frame number and the slot number of the host base station, the remote unit, and the backhaul module, and the specific configuration manner may refer to the method described in the above embodiment two, and is not described herein again. Wherein, the internal mask of the host base station and the remote unit is 20 bits.
In summary, in the data transmission method according to this embodiment, a route is matched according to a destination address of downlink data, so as to obtain a first route; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
Example four
With reference to the foregoing embodiments, this embodiment describes the data transmission method in detail by using a specific example.
Referring to fig. 4, a schematic diagram of an LTE cell remote networking in the fourth embodiment of the present invention is shown. In this embodiment, a UE (User Equipment), a Remote Unit (Remote Unit), a backhaul module, a DeNB (host base station), a transmission device, and a core network device form an LTE cell Remote networking.
Wherein the content of the first and second substances,
a Remote Unit (Remote Unit) may use a complete base station, which is virtualized as a stacked base station under a host base station, and both operation maintenance and signaling may be implemented on the host base station side, and cell resource establishment is implemented on the local Remote Unit side.
The return module is accessed to the host base station in a wireless mode through a WAN (wide area network) port (input), and a return agent unit integrated in the host base station is responsible for access control and management of the host base station. And the remote unit is connected with the LAN port in a wired mode.
And the host base station adds a processing function to the return data on the basis of the common base station, and supports the access of both the common UE and the return module.
In order to ensure communication quality and avoid signal interference, the frequency point of the remote unit needs to use a frequency point different from the frequency point of the host base station.
In this embodiment, the configuration of the IP addresses of the LAN ports of the remote unit, the host base station, and the backhaul module can be performed according to the machine frame number and the slot position. The specific mode can be as follows:
the configuration rules may be as follows: 10.0.xx. (192+ coreid). Wherein xx can be spliced by a machine frame number (high 4 bits) and a slot number (low 4 bits).
In this embodiment, the frame number of the host base station may be fixed to 0 frame, and the frame numbers of the remote unit and the backhaul unit may be planned in advance according to the actual deployment situation. For example, the IP of the master processor of the home base station may be 10.0.0.192, and the IP of the master processor of the remote unit may be 10.0.17.192. Wherein, in order to simplify the internal communication, the internal masks of the remote unit and the host base station can be modified from 16-bit mask to 20-bit mask. Preferably, when the backhaul module is accessed, the IP of the LAN port may be configured to be 10.0. (machine frame number |0).1 through a NAS (Non-access stratum) message, and the mask of the IP of the LAN port is also 20-bit mask.
Further preferably, in this embodiment, both the remote unit and the host base station are configured with a corresponding route. For example, in the remote unit, a route (second route) is added based on all internal IPs of the remote unit, a destination network segment of the second route may be 10.0.0.0, a mask is 20-bit mask, and the gateway may be a LAN port IP of the backhaul module. In the home base station, a route (first route) is added to all internal IPs with the home base station, the destination network segment of the first route may be 10.0. (machine frame number |0).0, the mask is a 20-bit mask, and the gateway may be 10.0.2.192 (IP address of backhaul proxy unit under the home base station).
For example, based on the above configuration rule, the following IP addresses can be obtained: the IP of the master control processing unit of the host base station may be 10.0.0.192, the IP address of the backhaul proxy unit under the host base station may be 10.0.2.192, the IP address of the network processing unit under the host base station may be 10.0.1.193, and the baseband board card is placed in the 4 slot, so the IP of the baseband control CPU is assumed to be 10.0.4.192, and the IP address of the baseband processing unit under the host base station may be 10.0.4.199. The IP address of the LAN port of the backhaul module may be 10.0.16.1. The IP address of the master processing unit of the remote unit may be 10.0.17.192, the IP address of the baseband control unit of the remote unit may be 10.0.20.192, and the IP address of the baseband processing unit of the remote unit may be 10.0.20.199.
Based on the networking relationship and the configuration of the IP address, the data transmission method will be described in detail below from the two aspects of internal data communication and service data transmission, respectively.
1. Internal data communication
In this embodiment, the internal data communication may include both upstream and downstream directions.
1.1, downstream direction
Referring to fig. 5, a schematic diagram of downlink data transmission in internal data communication in the fourth embodiment of the present invention is shown. The host base station may include: the system comprises a baseband processing unit, a network processing unit, a backhaul proxy unit and a main control processing unit.
The downlink direction is as follows: when a master control processing unit (10.0.0.192/20) of a host base station sends a message (downlink data) to a master control processing unit (10.0.17.192/20) of a remote unit, a first route is obtained according to matching of a destination address (10.0.17.192/20), the downlink data is sent to a return proxy unit according to the first route, the return proxy unit can punch an internal Innr-GTPU header on the downlink data according to a network segment of the destination address and send the internal Innr-GTPU header back to a network processing unit, the network processing unit forwards the downlink data to a baseband processing unit according to service load when the return module is accessed, the baseband processing unit sends the downlink data to the return module, and the return module forwards the downlink data to the master control processing unit of the remote unit according to the destination address.
It should be noted that, as shown in fig. 5, during the data transmission process, the unit modules may interact based on the OSPMsg message, specifically:
msg: message, message;
OSP: open segment Protocol, Open Settlement Protocol;
un: upstream Node, Upstream Node;
PDCP: packet Data Convergence Protocol;
Innr-GTPU: an internal GTPU;
CPE: customer premiums Equipment, Customer Premises Equipment;
CPE-GTPU: a user end device GTPU;
1.2, upward direction
Referring to fig. 6, a schematic diagram of internal data communication uplink data transmission in a fourth embodiment of the present invention is shown. The host base station may include: the system comprises a baseband processing unit, a network processing unit, a backhaul proxy unit and a main control processing unit.
An uplink direction: when a master control processing unit (10.0.17.192/20) of a remote unit sends a message (uplink data) to a master control processing unit (10.0.0.192/20) of a host base station, a second route is obtained according to matching of a destination address (10.0.0.192/20), the uplink data are directly sent to a return module according to the second route, the return module can send the received uplink data to a baseband processing unit of the host base station through a wireless air interface bearer, the baseband processing unit marks an internal Innr-GTPU header on the uplink data, the uplink data are forwarded to a return agent unit through a network processing unit, and the return agent unit sends the uplink data to the master control processing unit of the host base station after the Innr-GTPU header is removed.
It should be noted that, the interaction and transmission of data inside other base stations can be performed with reference to the above description, and detailed description is omitted.
2. Traffic data transmission
In this embodiment, the service data transmission may include both uplink and downlink directions.
2.1, downstream direction
Fig. 7 is a schematic diagram illustrating downlink data transmission of service data in a fourth embodiment of the present invention.
The downlink direction is as follows: receiving downlink service data of a service server, sending the downlink service data to an S/PGW (SGW, Serving gateway; PGW, PDN gateway; PDN gateway), sending the downlink service data to a network processing unit of a host base station after adding a GTPU head to the downlink service data by the S/PGW, changing a destination address of the downlink service data to 10.0.20.199 by the network processing unit according to a mapping relation of bearing, sending the downlink service data with the destination address changed to a return proxy unit according to a first route, adding an internal Innr-GTPU head to the downlink service data by the return proxy unit, sending the downlink service data to the network processing unit, mapping the bearing of a return module by the network processing unit, forwarding the downlink service data to a baseband processing unit (10.0.4.199) of the host base station, sending the downlink service data to the return module by the baseband processing unit through an air interface, the backhaul module sends the received GTPU message with destination address 10.0.20.199 to the baseband processing unit of the remote unit, and then forwards the GTPU message to the general UE in the remote cell.
The messages referred to in fig. 7 are briefly explained below:
payload: a net load;
RN: remote Node, Remote Node;
and Teid: in LTE (Long Term Evolution), a GTP tunnel used between two nodes communicating based on GTP (GPRS tunneling Protocol GPRS tunnel Protocol), each GTP tunnel uses an IP (Internet Protocol, Protocol for interconnection between networks) address, a UDP (User datagram Protocol) port, and a Teid at the same time for identification of one node.
2.2, upward direction
Referring to fig. 8, a schematic diagram of uplink data transmission of service data in the fourth embodiment of the present invention is shown.
An uplink direction: the uplink service data sent from the ordinary UE under the remote cell, the destination address of which is a network processing unit (10.0.1.193) of the host base station, is sent to the LAN port of the backhaul module according to the second path, the backhaul module sends the uplink service data to the baseband processing unit of the host base station through the air interface, the baseband processing unit adds Innr-GTPU head to the uplink service data according to the load of the backhaul module and sends the uplink service data to the network processing unit, the network processing unit sends the uplink service data to the backhaul proxy unit according to the load mapping of the backhaul module, the backhaul proxy unit sends the uplink service data back to the network processing unit after removing the Innr-GTPU head, and the network processing unit sends the service data out of the host to the S/PGW by using the load of the ordinary UE under the remote cell.
In this embodiment, as for the clock of the base station, the clock of the host base station and the clock of the remote unit may be independent, and both clocks use a GPS (Global Positioning System) clock, and since the phase difference of the clock of the base station is substantially less than 1.5us in the case of GPS locking, the phase difference of the clocks of the host base station and the remote unit satisfies the requirement.
It can be seen that, in this embodiment, the stacking method of the base station is borrowed at the local management level, the method for returning the service of the remote base station is borrowed at the service output level, and the cell-level remote of the LTE base station is implemented in a simpler manner, thereby avoiding the problem that the transmission parameters of the remote base station in the existing network are difficult to plan. Moreover, because the base station supports the stacking technology, the operation and maintenance module of the base station does not need to be modified, the normal function of the base station does not need to be changed, and the networking is convenient and fast.
In summary, in the data transmission method according to this embodiment, a route is matched according to a destination address of downlink data, so as to obtain a first route; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
It should be noted that the foregoing method embodiments are described as a series of acts or combinations for simplicity in explanation, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts or acts described, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
EXAMPLE five
Based on the same inventive concept as the above method embodiments, referring to fig. 9, a block diagram of a data transmission system in a fifth embodiment of the present invention is shown. In this embodiment, the data transmission system includes:
the first determining module 902 is configured to match a route according to a destination address of the downlink data to obtain a first route.
In this embodiment, the destination address of the downlink data matches the IP address of the remote unit.
A first sending module 904, configured to send the downlink data to a backhaul proxy unit of the host base station according to the first route.
A second sending module 906, configured to send the downlink data to a WAN port of a backhaul module through the backhaul proxy unit in a wireless manner, so that the backhaul module sends the downlink data to a remote unit through a LAN port according to the destination address.
It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
In a preferred aspect of this embodiment, referring to fig. 10, a block diagram of a preferred data transmission system in fifth embodiment of the present invention is shown.
Preferably, in this embodiment, the second sending module 906 may specifically include: a configuration submodule 9062, configured to configure an internal tunneling protocol GTPU header for the downlink data according to a network segment of a destination address of the downlink data; a determining submodule 9064, configured to determine a service bearer of the downlink data; and the sending sub-module 9066 is configured to send, according to the service bearer, the downlink data carrying the internal tunneling protocol GTPU header to the WAN port of the backhaul module wirelessly.
Preferably, in this embodiment, the downlink data may include: internal downlink traffic data and external downlink traffic data. Wherein, when the downlink data is downlink service data, the system further includes: a reconfiguration module 908, configured to reconfigure the destination address of the downlink service data according to the IP address of the remote unit.
Preferably, in this embodiment, the system may further include: a first configuration module 910, configured to configure IP addresses of LAN ports of the host base station, the remote unit, and the backhaul module according to the machine frame number and the slot number of the host base station, the remote unit, and the backhaul module, respectively; wherein, the internal mask of the host base station and the remote unit is 20 bits.
In summary, in the data transmission system according to this embodiment, a route is matched according to a destination address of downlink data, so as to obtain a first route; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
EXAMPLE six
Referring to fig. 11, a block diagram of a data transmission system in a sixth embodiment of the present invention is shown. In this embodiment, the data transmission system includes:
a second determining module 1102, configured to match a route according to a destination address of the uplink data to obtain a second route; the destination address of the uplink data is matched with the IP address of the host base station;
a third sending module 1104, configured to send the uplink data to the LAN port of the backhaul module according to the second route, so that the backhaul module sends the uplink data to the host base station indicated by the destination address through the WAN port after receiving the uplink data.
It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
In a preferred aspect of this embodiment, referring to fig. 12, a block diagram of a preferred data transmission system in a sixth embodiment of the present invention is shown.
Preferably, in this embodiment, the system may further include: a second configuration module 1106, configured to configure the IP addresses of the LAN ports of the host base station, the remote unit, and the backhaul module according to the machine frame number and the slot number of the host base station, the remote unit, and the backhaul module, respectively; wherein, the internal mask of the host base station and the remote unit is 20 bits.
In summary, in the data transmission system according to this embodiment, a route is matched according to a destination address of downlink data, so as to obtain a first route; according to the first route, sending the downlink data to a return proxy unit of the host base station; and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address. It can be seen that, in this embodiment, the remote unit may serve as a stacking base station of the host base station, an operation maintenance module of the base station does not need to be modified, normal base station functions do not need to be changed, networking is convenient and fast, communication between the remote unit and the host base station is directly achieved through routing, new IP and other transmission parameters do not need to be planned for the remote unit, deployment difficulty is reduced, and deployment flow is simplified.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The data transmission method and system provided by the present invention are described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A data transmission method is characterized in that a return module is in wireless connection with a host base station through a WAN port of a wide area network and is in wired connection with a remote unit through a LAN port of a local area network, and the method comprises the following steps:
matching a route according to a destination address of downlink data to obtain a first route; wherein, the destination address of the downlink data is matched with the IP address of the remote unit;
according to the first route, sending the downlink data to a return proxy unit of the host base station;
and the return proxy unit wirelessly transmits the downlink data to a WAN port of a return module so that the return module transmits the downlink data to a remote unit through a LAN port according to the destination address.
2. The method according to claim 1, wherein said sending said downstream data to a WAN port of a backhaul module via said backhaul proxy unit wirelessly comprises:
configuring an internal tunneling protocol GTPU head for the downlink data according to the network segment of the destination address of the downlink data;
determining the service bearing of the downlink data;
and according to the service bearer, wirelessly transmitting the downlink data carrying the internal tunneling protocol GTPU head to a WAN port of a return module.
3. The method of claim 1, wherein the downlink data comprises: internal downlink communication data and external downlink service data;
wherein, when the downlink data is downlink service data, the method further comprises:
and reconfiguring the destination address of the downlink service data according to the IP address of the remote unit.
4. The method of claim 1, further comprising:
respectively configuring IP addresses of LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
5. A data transmission method, wherein a backhaul module is wirelessly connected to a host base station via a WAN port and is wired to a remote unit via a LAN port, the method comprising:
matching the route according to the destination address of the uplink data to obtain a second route; the destination address of the uplink data is matched with the IP address of the host base station;
and sending the uplink data to a LAN port of a backhaul module according to a second route, so that the backhaul module sends the uplink data to the host base station indicated by the destination address through a WAN port after receiving the uplink data.
6. The method of claim 5, further comprising:
respectively configuring IP addresses of LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
7. A data transmission system, comprising:
the first determining module is used for matching a route according to a destination address of downlink data to obtain a first route; the destination address of the downlink data is matched with the IP address of the remote unit;
a first sending module, configured to send the downlink data to a backhaul proxy unit of a host base station according to a first route;
and the second sending module is used for sending the downlink data to a WAN port of a backhaul module through the backhaul agent unit in a wireless manner, so that the backhaul module sends the downlink data to a remote unit through a LAN port according to the destination address.
8. The system of claim 7, wherein the second sending module comprises:
the configuration submodule is used for configuring an internal tunneling protocol GTPU head for the downlink data according to the network segment of the destination address of the downlink data;
a determining submodule, configured to determine a service bearer of the downlink data;
and the sending submodule is used for wirelessly sending the downlink data carrying the internal tunneling protocol GTPU head to a WAN port of the return module according to the service bearer.
9. The system of claim 7, wherein the downlink data comprises: internal downlink communication data and external downlink service data;
wherein, when the downlink data is downlink service data, the system further includes:
and the reconfiguration module is used for reconfiguring the destination address of the downlink service data according to the IP address of the remote unit.
10. The system of claim 7, further comprising:
the first configuration module is used for respectively configuring the IP addresses of the LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
11. A data transmission system, comprising:
the second determining module is used for matching the route according to the destination address of the uplink data to obtain a second route; the destination address of the uplink data is matched with the IP address of the host base station;
and the third sending module is used for sending the uplink data to the LAN port of the backhaul module according to the second route, so that the backhaul module sends the uplink data to the host base station indicated by the destination address through the WAN port after receiving the uplink data.
12. The system of claim 11, further comprising:
the second configuration module is used for respectively configuring the IP addresses of the LAN ports of the host base station, the remote unit and the return module according to the machine frame number and the slot number of the host base station, the remote unit and the return module; wherein, the internal mask of the host base station and the remote unit is 20 bits.
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