CN102869045B

CN102869045B - A kind of data transmission method and system

Info

Publication number: CN102869045B
Application number: CN201210324353.8A
Authority: CN
Inventors: 倪慧娟; 段滔; 倪伟; 罗华
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2012-09-04
Filing date: 2012-09-04
Publication date: 2015-08-19
Anticipated expiration: 2032-09-04
Also published as: CN102869045A

Abstract

This application provides a kind of data transmission method and system, to solve transmission equipment and material overlapping investment, the problem of waste resource.Described method comprises: radio frequency discrimination RFID equipment sends the RF remote equipment RRU of the first packet to base station; RRU receives described first packet, for described first packet adds the first heading, the first packet after interpolation first heading is joined in the second packet self sent, and according to described first heading by described second Packet Generation to the indoor equipment TDB of base station; Described TDB receives described second packet, and the first heading of the first packet is wherein converted to the second heading; Described TDB will be converted to the first Packet Generation after the second heading to RFID server according to described second heading.The application can by the data of base-station transmission rfid system, thus make rfid system and base station can share a set of transfer resource, saves construction cost.

Description

A kind of data transmission method and system

Technical field

The application relates to communication technical field, particularly relates to a kind of data transmission method and system.

Background technology

Existing wireless device systems, in order to realize the design of Multi-standard multi-band, needs the function simultaneously supporting distributed base station and radio-frequency (RF) identification (Radio Frequency Identification, RFID) system.Current distributed base station and rfid system are all independence networking.

With Time Division-Synchronous Code Division Multiple Access access (Time Division-Synchronous Code DivisionMultiple Access, TD-SCDMA) base station equipment (NodeB) is example, as shown in Figure 1, it is by Base Band Unit equipment (Base band Unit, BBU), RF remote equipment (Radio RemoteUnit, RRU) and interface board form, wherein, interface board comprises network processing unit (NetworkProcessor, NP), this base station equipment can carry out distributed installation neatly.Wherein, RF remote equipment RRU is connected with Base Band Unit equipment B BU by Ir (Ir is the designate of " Interface between the RRU and the BBU ") interface (namely by a pair Fiber connection), BBU is connected with interface board, interface board is connected by Iub interface (logic interfacing between RNC and Node B) and radio network controller (Radio Network Controller, RNC).

As shown in Figure 2, be the structural representation of rfid system.In order to realize two-node cluster hot backup, comprising two RFID servers at rfid system, between RFID server and RFID card reader, adopting 485 interface gateway equipments to connect.

Visible, above-mentioned base station when carrying out transfer of data employing be Optical Fiber Transmission mechanism, and the transfer of data of rfid system adopt be ether transmission mechanism.Due to the system composition of two systems and data transfer path etc. all not identical, therefore, time existing wireless device supports distributed base station and rfid system at the same time, need separately above-mentioned two cover systems to be installed in machine room, and carry out transfer of data respectively, therefore each system is needed to configure transfer resource separately, thus cause the overlapping investment of the transmission equipments such as optical fiber and material, waste resource, construction cost is higher.

Summary of the invention

Technical problems to be solved in this application are to provide a kind of data transmission method and system, to solve transmission equipment and material overlapping investment, and the problem of waste resource.

In order to solve the problem, this application discloses a kind of data transmission method, comprising:

Radio frequency discrimination RFID equipment sends the RF remote equipment RRU of the first packet to base station;

RRU receives described first packet, for described first packet adds the first heading, the first packet after interpolation first heading is joined in the second packet self sent, and according to described first heading by described second Packet Generation to the indoor equipment TDB of base station;

Described TDB receives described second packet, and the first heading of the first packet is wherein converted to the second heading;

Described TDB will be converted to the first Packet Generation after the second heading to RFID server according to described second heading.

Preferably, described TDB comprises TDB primary processor and TDB network processing unit.

Preferably, described first heading comprises an IP head and first user data pack protocol UDP head, wherein, a described IP head comprises the first source IP address and the first object IP address, described first source IP address is the IP address of RRU, and described first object IP address is the internal IP address of TDB network processing unit;

The step of described second Packet Generation to the indoor equipment TDB of base station comprises according to described first heading by described RRU:

RRU searches the first object IP address in described first heading, by the described second Packet Generation TDB network processing unit that extremely described first object IP address is corresponding.

Preferably, the step in the described second Packet Generation TDB network processing unit that extremely described first object IP address is corresponding comprises by described RRU:

RRU by described second Packet Generation to TDB primary processor;

TDB primary processor by described second Packet Generation to TDB network processing unit;

Described TDB receives described second packet, the step that the first heading of the first packet is wherein converted to the second heading is comprised:

TDB network processing unit obtains the first packet after described interpolation first heading from the second packet received;

The first heading of described first packet removed by TDB network processing unit, and adds the second heading for described first packet.

Preferably, described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, described 2nd IP head comprises the second source IP address and the second object IP address, described second source IP address is the external IP address of TDB network processing unit, and described second object IP address is the IP address of RFID server;

The step of the first Packet Generation after being converted to the second heading to RFID server comprises according to described second heading by described TDB:

The second object IP address in described second heading searched by TDB network processing unit, by the described first Packet Generation RFID server that extremely described second object IP address is corresponding.

Preferably, RRU by described second Packet Generation to base station indoor equipment TDB before, also comprise:

On RRU, configuration purpose is TDB network processing unit, and gateway is three layers of route of TDB primary processor, and on TDB primary processor, configuration purpose is two layers of route of TDB network processing unit, generates transmission channel;

Described second Packet Generation to the step of the indoor equipment TDB of base station is by described RRU:

Described RRU passes through described transmission channel by the second Packet Generation to described TDB network processing unit.

Preferably, described TDB's is multiple to external port, and described RRU is multiple, and described method also comprises:

Set up the mapping relations of the external port numbers of described TDB and the IP address of described RRU;

RRU inquires about described mapping relations, by described second Packet Generation in the TDB port meeting these mapping relations.

Disclosed herein as well is a kind of data transmission method, comprising:

Radio frequency discrimination RFID server sends the indoor equipment TDB of the first packet to base station, and described first packet comprises the second heading, and described RFID server send the first packet according to described second message hair;

TDB receives described first packet, and the second heading of described first packet is converted to the first heading;

The first packet after being converted to the first heading joins in the second packet self sent by TDB, and according to described first heading by described second Packet Generation to the RF remote equipment RRU of base station;

RRU receives described second packet, is removed by the first heading of the first packet wherein, and by the first Packet Generation after removal first heading to RFID device.

Preferably, it is characterized in that, described TDB comprises TDB primary processor and TDB network processing unit.

Preferably, described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, described 2nd IP head comprises the second source IP address and the second object IP address, described second source IP address is the IP address of RFID server, and described second object IP address is the external IP address of TDB network processing unit;

Described RFID server send the step of the first packet to comprise according to described second message hair:

The second object IP address in second heading described in RFID whois lookup, by the described first Packet Generation TDB network processing unit that extremely described second object IP address is corresponding.

Preferably, the step in the described first Packet Generation TDB network processing unit that extremely described second object IP address is corresponding comprises by described RFID server:

RFID server by described first Packet Generation to TDB primary processor;

TDB primary processor by described first Packet Generation to TDB network processing unit;

The step that second heading of described first packet is converted to the first heading comprises by described TDB:

The second heading of described first packet removed by TDB network processing unit, and adds the first heading for described first packet.

Preferably, described first heading comprises an IP head and first user data pack protocol UDP head, wherein, a described IP head comprises the first source IP address and the first object IP address, described first source IP address is the internal IP address of TDB network processing unit, and described first object IP address is the IP address of RRU;

The step of described second Packet Generation to the RF remote equipment RRU of base station comprises according to described first heading by described TDB:

The first object IP address in described first heading searched by TDB network processing unit, by the described second Packet Generation RRU that extremely described first object IP address is corresponding.

Preferably, before the second heading of described first packet is converted to the first heading by TDB, also comprise:

On TDB primary processor, configuration purpose is RRU, and gateway is three layers of route of TDB network processing unit, generates transmission channel;

Described second Packet Generation to the step of the RF remote equipment RRU of base station is by described TDB:

TDB primary processor passes through described transmission channel by the second Packet Generation to described RRU.

TDB inquires about described mapping relations, by described second Packet Generation in the RRU meeting these mapping relations.

Disclosed herein as well is a kind of data transmission system, comprising: the indoor equipment TDB of TDU, base station and RFID server, described TDU comprises radio frequency discrimination RFID equipment and RF remote equipment RRU, wherein,

Radio frequency discrimination RFID equipment comprises:

RFID first sending module, for when carrying out uplink, sends the first packet to RRU;

RFID first receiver module, for when carrying out downlink transfer, receives the first packet that RRU sends;

RF remote equipment RRU comprises:

Serial ports ether modular converter, for when carrying out uplink, receives described first packet, for described first packet adds the first heading, and is joined by the first packet after interpolation first heading in the second packet self sent; When carrying out downlink transfer, receive described second packet, the first heading of the first packet is wherein removed;

RRU sending module, for when carrying out uplink, according to described first heading by described second Packet Generation to TDB; When carrying out downlink transfer, by the first Packet Generation after removal first heading to RFID device;

The indoor equipment TDB of base station comprises:

Heading modular converter, for when carrying out uplink, after receiving described second packet, is converted to the second heading by the first heading of the first packet wherein; When carrying out downlink transfer, after receiving described first packet, the second heading of described first packet is converted to the first heading, and the first packet after being converted to the first heading is joined in the second packet self sent;

TDB sending module, for when carrying out uplink, will be converted to the first Packet Generation after the second heading to RFID server according to described second heading; When carrying out downlink transfer, according to described first heading by described second Packet Generation to RRU;

RFID server comprises:

RFID second receiver module, for when carrying out uplink, receives the first packet that TDB sends;

RFID second sending module, for when carrying out downlink transfer, sends the first packet to TDB.

Preferably, the indoor equipment TDB of described base station also comprises TDB primary processor and TDB network processing unit.

Preferably, described first heading comprises an IP head and first user data pack protocol UDP head, and wherein, a described IP head comprises the first source IP address and the first object IP address; Described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, and wherein, described 2nd IP head comprises the second source IP address and the second object IP address;

When carrying out uplink, described first source IP address is the IP address of RRU, and described first object IP address is the internal IP address of TDB network processing unit; Described second source IP address is the external IP address of TDB network processing unit, and described second object IP address is the IP address of RFID server;

When carrying out downlink transfer, described first source IP address is the internal IP address of TDB network processing unit, and described first object IP address is the IP address of RRU; Described second source IP address is the IP address of RFID server, and described second object IP address is the external IP address of TDB network processing unit.

Preferably, described RRU sending module comprises:

The up transmitting element of RRU, for when carrying out uplink, searches the first object IP address in described first heading, by the described second Packet Generation TDB network processing unit that extremely described first object IP address is corresponding;

Described TDB sending module comprises:

The up transmitting element of TDB, for when carrying out uplink, searches the second object IP address in described second heading, by the described first Packet Generation RFID server that extremely described second object IP address is corresponding;

The descending transmitting element of TDB, for when carrying out downlink transfer, searches the first object IP address in described first heading, by the described second Packet Generation RRU that extremely described first object IP address is corresponding;

Described RFID second sending module comprises:

The descending transmitting element of RFID, for when carrying out downlink transfer, searches the second object IP address in described second heading, by the described first Packet Generation TDB network processing unit that extremely described second object IP address is corresponding.

Preferably, the up transmitting element of described RRU when carrying out uplink, by described second Packet Generation to TDB primary processor;

The descending transmitting element of described RFID when carrying out downlink transfer, by described first Packet Generation to TDB primary processor;

Described TDB primary processor is used for when carrying out uplink, by described second Packet Generation to TDB network processing unit; When carrying out downlink transfer, by described first Packet Generation to TDB network processing unit;

Described heading modular converter comprises:

Acquiring unit, for when carrying out uplink, obtains the first packet after described interpolation first heading from the second packet received;

Converting unit, for when carrying out uplink, removing the first heading of described first packet, and adding the second heading for described first packet; When carrying out downlink transfer, removing the second heading of described first packet, and adding the first heading for described first packet.

Preferably, described RF remote equipment RRU also comprises:

RRU configuration module, for when carrying out uplink, before RRU is by described second Packet Generation to TDB, on RRU, configuration purpose is TDB network processing unit, and gateway is three layers of route of TDB primary processor;

The indoor equipment TDB of described base station also comprises:

TDB configuration module, for when carrying out uplink, before RRU is by described second Packet Generation to TDB, on TDB primary processor, configuration purpose is two layers of route of TDB network processing unit; When carrying out downlink transfer, before the second heading of described first packet is converted to the first heading by TDB, on TDB primary processor, configuration purpose is RRU, and gateway is three layers of route of TDB network processing unit;

When carrying out uplink, described three layers of route configuring on RRU and the described two layers of route configured on TDB primary processor generate transmission channels;

When carrying out downlink transfer, the described three layers of route configured on TDB primary processor generate transmission channel;

Described RRU sending module when carrying out uplink, by described transmission channel by the second Packet Generation to described TDB network processing unit;

Described TDB primary processor when carrying out downlink transfer, by described transmission channel by the second Packet Generation to described RRU.

Preferably, the indoor equipment TDB's of described base station is multiple to external port, and described RF remote equipment RRU is multiple, and described RF remote equipment RRU also comprises:

RRU sets up module, for the mapping relations of the IP address of the external port numbers and described RRU of setting up described TDB;

The indoor equipment TDB of described base station also comprises:

TDB sets up module, for the mapping relations of the IP address of the external port numbers and described RRU of setting up described TDB;

Described RRU sending module inquires about described mapping relations, by described second Packet Generation in the TDB port meeting these mapping relations;

Described TDB sending module inquires about described mapping relations, by described second Packet Generation in the RRU meeting these mapping relations.

Compared with prior art, the application comprises following advantage:

The application is by setting up the connection between RFID device in rfid system and the RRU of base station, and the connection between the RFID server set up in rfid system and the TDB of base station, can the data transmitted in rfid system be sent in base station, and the first data that rfid system transmits are joined in the second data of base-station transmission, carried the first data of rfid system by the second data of base-station transmission, described first data are sent to rfid system by last base station again.By said process, can by the data of base-station transmission rfid system, thus make rfid system and base station can share a set of transfer resource, save construction cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of TD-SCDMA base station in prior art;

Fig. 2 is the structural representation of rfid system in prior art;

Fig. 3 is the flow chart of a kind of data transmission method described in the embodiment of the present application one;

Fig. 4 is the data structure schematic diagram of TD-SCDMA base station transmission in prior art;

Fig. 5 is the flow chart of a kind of data transmission method described in the embodiment of the present application two;

Fig. 6 is the flow chart of a kind of data transmission method described in the embodiment of the present application three;

Fig. 7 is the system construction drawing after the base station described in the embodiment of the present application is connected with rfid system;

Fig. 8 is the structured flowchart of the TDU described in the embodiment of the present application;

Fig. 9 is the structured flowchart of the TDB described in the embodiment of the present application;

Figure 10 is the data transmission procedure schematic diagram described in the embodiment of the present application;

Figure 11 is the structured flowchart of a kind of data transmission system described in the embodiment of the present application four.

Embodiment

For enabling above-mentioned purpose, the feature and advantage of the application more become apparent, below in conjunction with the drawings and specific embodiments, the application is described in further detail.

The application is by merging distributed base station and rfid system, the data of the distributed base station system transmission rfid system built up can be utilized, therefore, without the need to building a complete set of RFID transmission system again, decrease the wasting of resources caused due to repeated construction, save construction cost.

For TD-SCDMA base station equipment, between the RF remote equipment RRU of base station and the indoor equipment TDB of base station, adopt Optical Fiber Transmission mode, to realize the application demand of long distance, and adopt Ethernet transmission means between RFID device and RFID server.In order to allow rfid system and TD-SCDMA base station common transmitted resource, if consider to use Ethernet transmission means, such TD-SCDMA base station can lose the advantage of long-distance transmissions, also can impact the transmission bandwidth needed for TD-SCDMA base station.Therefore, the application adopts the transmission method based on TD-SCDMA system carrying rfid system data.

As shown in Figure 7, be the system construction drawing after base station described in the embodiment of the present application is connected with rfid system, as can be seen from the figure, the system after connection includes TDU, TDB, RFID server and core net and service server.Wherein, TDU comprises the RF remote equipment RRU of RFID device and base station, includes Base Band Unit equipment B BU and the interface board of base station in TDB.All transmit data by Ethernet mode between RFID device and RRU, between TDB and RFID server and between TDB and core net and service server, between each TDU and between TDU and TDB, all transmit data by optical fiber solutions.Can realize utilizing base station equipment to transmit the data of rfid system by this system.

With reference to Fig. 3, show the flow chart of a kind of data transmission method described in the embodiment of the present application one, described by the present embodiment be uplink (being namely transferred to RFID server from RFID device) time data transmission procedure.

Based on the system of Fig. 7, described data transmission method comprises:

Step S301, radio frequency discrimination RFID equipment sends the RF remote equipment RRU of the first packet to base station.

First the embodiment of the present application will set up the connection of rfid system and distributed base station, connection between the concrete radio frequency discrimination RFID equipment setting up rfid system and the RF remote equipment RRU of base station, and set up the connection between the RFID server of rfid system and the indoor equipment TDB of base station.After establishing the connection between two systems, rfid system can send data in base station, and passes through the data that described in base-station transmission, rfid system sends.

It should be noted that, connection between above-mentioned RFID device and RRU, and the connection between RFID server and TDB can adopt wired connection mode (such as adopting to connect greatly), can also adopt radio connection (such as adopting Fiber connection), the application is not limited concrete connected mode.

In uplink process, need transfer of data RFID device gathered in RFID server, therefore, RFID device needs the first Packet Generation gathered in the RRU be connected with this RFID device.

Step S302, RRU receives described first packet, for described first packet adds the first heading, the first packet after interpolation first heading is joined in the second packet self sent, and according to described first heading by described second Packet Generation to the indoor equipment TDB of base station.

Rfid system is based on Ethernet transmission means, and in order to minimum on the existing design impact of both sides' system, design rfid system still adopts Ethernet transmission means, and the prevailing transmission means of TD-SCDMA base station are the Optical Fiber Transmission mode based on IR standard agreement.The feature of this Optical Fiber Transmission mode is the feature for TD-SCDMA base station time division duplex, adopt the mode of fixed data structure and synchronization frame, TD-SCDMA data of eating dishes without rice or wine are encapsulated from segmentation time sequencing, and can according to pre-configured, the TD-SCDMA of distinct device, different frequency data of eating dishes without rice or wine are encapsulated from segmentation time sequencing, is combined into the serial data stream of applicable high-speed transfer.

As shown in Figure 4, be the data structure schematic diagram that TD-SCDMA base station is transmitted.As can be seen from Figure in IR data frame structure except the carrying data segment that data (I/Q data) of eating dishes without rice or wine to TD-SCDMA are distributed, have also been devised for control channel and the dedicated segments of carrying out Operation and Maintenance: C & M data segment.

The Ethernet transmission mechanism that C & M data segment adopts standard is defined in IR standard agreement, be under the condition of 2457.6Mbit/s at fiber-optic transmission rate, the operable transmission rate of C & M data segment down direction is 6.5536Mbit/s, up direction distributes to separately each RRU because of needs, and operable transmission rate is 768Kbit/s; And rfid system message transmission rate is 2400bit/s, the transmission rate that C & M data segment can provide in IR agreement.Therefore, C & M data segment can be adopted in IR agreement to carry the data of rfid system, concrete transmission means adopts Ethernet transmission.

Therefore, in the present embodiment, namely by the data that the RFID device be connected with RRU obtains by IR optical fiber, be sent in TDB by C & M data segment in the mode of ether packet, and be sent to outside RFID server end again by the ethernet switch structure in TDB.

In this step, first RRU adds the first heading for described first packet after receiving the first packet of RFID device transmission, and described first heading is used for the transmission direction of data of description; Then RRU the first packet after interpolation first heading is joined self send the second packet in (described second packet is above-mentioned data of eating dishes without rice or wine, the application discusses no longer in detail to concrete data structure), according to above-mentioned description, join the C & M data segment in described second packet in the present embodiment by described first packet; Last RRU according to described first heading by described second Packet Generation to the indoor equipment TDB of base station, for concrete process of transmitting, will discuss in detail in the following embodiments.

Step S303, described TDB receive described second packet, and the first heading of the first packet is wherein converted to the second heading.

TDB is after receiving described second packet, need the first Packet Generation wherein to RFID server, now transmission channel there occurs change, therefore, first heading of the first packet wherein will be converted to the second heading by TDB, and described second heading is for describing transmission direction during described first packet of TDB transmission.

Step S304, described TDB will be converted to the first Packet Generation after the second heading to RFID server according to described second heading.

After TDB completes the conversion of above-mentioned heading, according to described second heading by being converted to the first Packet Generation after the second heading to RFID server, for concrete process of transmitting, will discuss in detail in the following embodiments.

The embodiment of the present application is by setting up the connection between RFID device in rfid system and the RRU of base station, and the connection between the RFID server set up in rfid system and the TDB of base station, can the data transmitted in rfid system be sent in base station, and the first data that rfid system transmits are joined in the second data of base-station transmission, carried the first data of rfid system by the second data of base-station transmission, described first data are sent to rfid system by last base station again.By said process, can by the data of base-station transmission rfid system, thus make rfid system and base station can share a set of transfer resource, save construction cost.

With reference to Fig. 5, be the flow chart of a kind of data transmission method described in the embodiment of the present application two, data transmission procedure time remaining described by the present embodiment uplink (being namely transferred to RFID server from RFID device).

Described data transmission method comprises:

Step S501, radio frequency discrimination RFID equipment sends the RF remote equipment RRU of the first packet to base station.

Step S502, on RRU, configuration purpose is TDB network processing unit, and gateway is three layers of route of TDB primary processor, and on TDB primary processor, configuration purpose is two layers of route of TDB network processing unit, generates transmission channel.

In the embodiment of the present application, described TDB comprises TDB primary processor and TDB network processing unit, and RRU needs by described second Packet Generation to TDB network processing unit, in process of transmitting, needs to forward described second packet through TDB primary processor.

Therefore, the present embodiment carries out above-mentioned routing configuration, to generate the transmission channel of data.Wherein, three layers of route refer to that route (route) is shown, two layers of route refer to address resolution protocol (Address Resolution Protocol, ARP) show, such configuration enables packet by transmission control protocol/Internet Protocol (Transmission Control Protocol/InternetProtocol of standard, TCP/IP) protocol stack forwards automatically, and does not need newly-increased codes implement.According to this transmission channel, packet wherein automatically can be forwarded.

Step S503, sets up the mapping relations of the external port numbers of described TDB and the IP address of described RRU.

In the embodiment of the present application, in order to improve data-handling efficiency, each TDB comprises multiple to external port, and each TDB is connected with multiple RRU simultaneously, and therefore, each RFID server is also connected with multiple RFID device simultaneously indirectly.Therefore, in order to distinguish multiple RRU (also namely distinguishing multiple RFID device), the external port numbers one_to_one corresponding of described RRU and TDB, by the mapping relations of the IP address of the external port numbers and described RRU of setting up TDB, can get up by the embodiment of the present application.

When RRU need by the second Packet Generation to TDB time, first RRU inquires about described mapping relations, then by described second Packet Generation in the TDB port meeting these mapping relations, by this TDB port further by described second Packet Generation to TDB network processing unit.

Step S504, RRU receives described first packet, for described first packet adds the first heading, the first packet after interpolation first heading is joined in the second packet self sent, and according to described first heading by described second Packet Generation to the indoor equipment TDB of base station.

Described first heading comprises an IP head and first user data pack protocol UDP head, wherein, a described IP head comprises the first source IP address and the first object IP address, described first source IP address is the IP address of RRU, and described first object IP address is the internal IP address of TDB network processing unit.

The second packet carrying the first packet can be sent to TDB network processing unit from RRU according to the first source IP address in described first heading and the first object IP address.

In this step, the step of described second Packet Generation to the indoor equipment TDB of base station comprises according to described first heading by described RRU:

Step S5041, RRU search the first object IP address in described first heading, by the described second Packet Generation TDB network processing unit that extremely described first object IP address is corresponding.

According to the associated description of above-mentioned steps S502, described RRU passes through described transmission channel by the second Packet Generation to described TDB network processing unit, RRU, in the process of the TDB network processing unit that described second Packet Generation is corresponding to described first object IP address, needs to forward described second packet through TDB primary processor.Therefore, this step S5041 comprises:

Step 1, RRU by described second Packet Generation to TDB primary processor;

Step 2, TDB primary processor by described second Packet Generation to TDB network processing unit.

By in the second Packet Generation TDB network processing unit that extremely described first object IP address is corresponding, can know that the source of this second packet is RRU according to the first source IP address by the first object IP address.

It should be noted that, in the embodiment of the present application, described TDB network processing unit comprises internal IP address and external IP address, wherein, internal IP address is used between inside of base station equipment, identify described TDB network processing unit, and external IP address is used for identifying described TDB network processing unit between base station and other system.

Step S505, described TDB receive described second packet, and the first heading of the first packet is wherein converted to the second heading.

After TDB receives described second packet, also will by the first Packet Generation wherein to RFID server, data transmission path changes, and therefore, needs the first heading to be wherein converted to the second heading.

This step is performed by TDB network processing unit, specifically comprises:

Step a1, TDB network processing unit obtains the first packet after described interpolation first heading from the second packet received.

First, TDB network processing unit needs the first packet of getting from the second packet received wherein.Concrete, can before described first packet to be joined the second packet himself sent by RRU, the type of message of this first packet is set, thus the first packet and the second packet are distinguished, therefore, TDB network processing unit can get described first packet according to this type of message.

Certainly, the application can also adopt other modes to obtain described first packet, and those skilled in the art are according to practical experience process, and the embodiment of the present application is discussed no longer in detail to this.

The first heading of described first packet removed by step a2, TDB network processing unit, and adds the second heading for described first packet.

Wherein, described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, described 2nd IP head comprises the second source IP address and the second object IP address, described second source IP address is the external IP address of TDB network processing unit, and described second object IP address is the IP address of RFID server.

Step S506, described TDB will be converted to the first Packet Generation after the second heading to RFID server according to described second heading.

This process is performed by TDB network processing unit, and TDB network processing unit can will be converted to the first Packet Generation after the second heading to RFID server according to the second source IP address in the second heading and the second object IP address, specifically comprises:

The second object IP address in described second heading searched by step S5061, TDB network processing unit, by the described first Packet Generation RFID server that extremely described second object IP address is corresponding.

By in the first Packet Generation RFID server that extremely described second object IP address is corresponding, can know that the source of this first packet is TDB network processing unit according to the second source IP address by the second object IP address.

The embodiment of the present application discusses the data transmission procedure of up direction in detail, by the first heading in the first data and the second heading, and the mapping relations of the external port numbers of TDB and the IP address of described RRU, and the routing configuration on RRU and TDB primary processor can realize the automatic transmission of data, do not need newly-increased code, thus pass through the data of base-station transmission rfid system, achieve two systems and share a set of transfer resource, save construction cost.

With reference to Fig. 6, show the flow chart of a kind of data transmission method described in the embodiment of the present application three, described by the present embodiment be downlink transfer (being namely transferred to RFID device from RFID server) time data transmission procedure.

Described data transmission method comprises:

Step S601, radio frequency discrimination RFID server sends the indoor equipment TDB of the first packet to base station, and described first packet comprises the second heading, and described RFID server send the first packet according to described second message hair.

When RFID server needs data to be wherein sent to corresponding RFID device, carry its first packet sent by base station equipment, and send it to described RFID device.First RFID server sends the indoor equipment TDB of the first packet to base station, wherein, described first packet comprises the second heading, and described second heading is used for the transmission direction of data of description, and described RFID server send the first packet according to described second message hair.

Concrete, described TDB comprises TDB primary processor and TDB network processing unit.Described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, described 2nd IP head comprises the second source IP address and the second object IP address, described second source IP address is the IP address of RFID server, and described second object IP address is the external IP address of TDB network processing unit.

Therefore, described RFID server send the step of the first packet to comprise according to described second message hair:

The second object IP address in second heading described in step S6011, RFID whois lookup, by the described first Packet Generation TDB network processing unit that extremely described second object IP address is corresponding.

In the embodiment of the present application, RFID server by the first Packet Generation in the process of TDB network processing unit, need first to send it to TDB primary processor, then be sent to TDB network processing unit by TDB primary processor.Therefore, this step S6011 comprises:

Step I, RFID server by described first Packet Generation to TDB primary processor;

Step I i, TDB primary processor by described first Packet Generation to TDB network processing unit.

By in the first Packet Generation TDB network processing unit that extremely described second object IP address is corresponding, can know that the source of this first packet is RFID server according to the second source IP address by the second object IP address.

Step S602, on TDB primary processor, configuration purpose is RRU, and gateway is three layers of route of TDB network processing unit, generates transmission channel.

By carrying out above-mentioned routing configuration, to generate the transmission channel of data, configuration enables packet automatically be forwarded by the ICP/IP protocol stack of standard like this, and does not need newly-increased codes implement.According to this transmission channel, get final product the packet in automatic transmission system.

Step S603, sets up the mapping relations of the external port numbers of described TDB and the IP address of described RRU.

When TDB need by the second Packet Generation to RRU time, first TDB inquires about described mapping relations, then by corresponding port by described second Packet Generation in the RRU meeting these mapping relations.

Step S604, TDB receive described first packet, and the second heading of described first packet is converted to the first heading.

This process is performed by TDB network processing unit, and the second heading of the first packet, after the first packet receiving the transmission of TDB primary processor, is first converted to the first heading, specifically comprises by TDB network processing unit:

The second heading of described first packet removed by step b1, TDB network processing unit, and adds the first heading for described first packet.

Wherein, described first heading comprises an IP head and first user data pack protocol UDP head, wherein, a described IP head comprises the first source IP address and the first object IP address, described first source IP address is the internal IP address of TDB network processing unit, and described first object IP address is the IP address of RRU.

The first packet after being converted to the first heading joins in the second packet self sent by step S605, TDB, and according to described first heading by described second Packet Generation to the RF remote equipment RRU of base station.

TDB network processing unit can will carry the second Packet Generation of the first packet to RRU according to the first source IP address in described first heading and the first object IP address.

The first object IP address in described first heading searched by step S6051, TDB network processing unit, by the described second Packet Generation RRU that extremely described first object IP address is corresponding.

By in the second Packet Generation RRU that extremely described first object IP address is corresponding, can know that the source of this second packet is TDB network processing unit according to the first source IP address by the first object IP address.

In addition, it should be noted that, according to the associated description of above-mentioned steps S602, in this step S605, described second Packet Generation to the step of the RF remote equipment RRU of base station is by described TDB:

TDB primary processor passes through described transmission channel by the second Packet Generation to described RRU, concrete, by described transmission channel first by described second Packet Generation to TDB network processing unit, then by TDB network processing unit by described transmission channel by described second Packet Generation to RRU.

Step S606, RRU receive described second packet, are removed by the first heading of the first packet wherein, and by the first Packet Generation after removal first heading to RFID device.

This step specifically comprises:

Step c1, RRU are converted to the first packet after the first heading described in obtaining from the second packet received.

First, RRU needs the first packet of getting from the second packet received wherein.Concrete, can before described first packet to be joined the second packet himself sent by TDB network processing unit, the type of message of this first packet is set, thus the first packet and the second packet are distinguished, therefore, RRU can get described first packet according to this type of message.

First heading of the first packet got is removed by step c2, RRU, and by the first Packet Generation after removal first heading to RFID device.

The embodiment of the present application discusses the data transmission procedure of down direction in detail, it is contrary process with the transfer of data of up direction, by the second heading in the first data and the first heading, and the mapping relations of the external port numbers of TDB and the IP address of described RRU, and the routing configuration on TDB primary processor can realize the automatic transmission of data, by the data of base-station transmission rfid system, achieve two systems and share a set of transfer resource.

Below, the design of various piece in illustrating described in the application data transmission procedure with a concrete example combined with hardware.

In order to support Multi-standard multi-band better, and improve the extensibility of system, TD-SCDMA base station equipment and rfid system are carried out system and are connected design by the application, by the transmission channel of TD-SCDMA base station, RFID base band data is carried out transparent transmission, simplify project installation complexity, optimize radio system network performance.Hardware and software two kinds of designs are combined in the present embodiment.

Hardware plan:

As shown in Figure 7, be system construction drawing after base station described in the present embodiment is connected with rfid system.As can be seen from the figure, between the RRU of TD-SCDMA base station and RFID device, adopt Ethernet transmission means, in this embodiment, RRU and RFID device are referred to as TDU; IR Optical Fiber Transmission mode is adopted between each TDU; IR Optical Fiber Transmission mode is adopted between TDU and TDB; Ethernet transmission means is adopted between TDB and RFID server, and also adopt Ethernet transmission means between TDB and core net and operational processor, wherein core net and operational processor are for the treatment of the data transmitted in base station, and TDB is all connected by IUB interface and RFID server and core net and operational processor.

First, respectively the structure of TDU and TDB is introduced.

Fig. 8 is the structured flowchart of the TDU described in the embodiment of the present application, and as can be seen from Figure 8, TDU comprises RFID radio-frequency module, RFID mainboard, RRU radio-frequency module and RRU mainboard.

Wherein, RFID radio-frequency module and RRU radio-frequency module outwardly send data respectively by radio-frequency antenna interface or receive extraneous data of sending; RFID radio-frequency module is connected with RFID mainboard, and RRU radio-frequency module is connected with RRU mainboard; Connected by 485 interfaces between RFID mainboard and RRU mainboard, thus realize transfer of data between the two.

Comprise FPGA processor and optical module at RRU mainboard, wherein FPGA processor mainly realizes following functions:

(1), realize soft-core processor, for the software of TDU equipment provides operation platform, realize comprising the functions such as program loading, hardware configuration, equipment operating maintenance, the conversion of serial ports <-> ether;

(2), for RFID mainboard Universal Asynchronous Receive/transmission (Universal AsynchronousReceiver/Transmitter, UART) module and hardware interface are provided, realize the path that RFID transmits data;

(3), for RRU radio-frequency module data-interface is provided, and data conversion module, to prepare for carrying out transfer of data from IR interface;

(4), serioparallel exchange and the data transmission module of two IR interfaces is realized, to receive up-downgoing data and to transmit.

Certainly, described FPGA processor can also comprise other functions, and the application discusses no longer in detail at this.

Optical module mainly receives extraneous data of sending by optical fiber interface or outwardly sends data.

Fig. 9 is the structured flowchart of the TDB described in the embodiment of the present application.As can be seen from the figure, described TDB mainly comprises with lower module:

Master control borad: the control treatment and the signaling processing capacity that complete base station system;

LTE Baseband Processing Unit: eat dishes without rice or wine business data frame process, the Base-Band Processing that complete base station system.Comprise the TD-SCDMA core processing module such as the process of TD-SCDMA frame structure, Base-Band Processing; The IR be connected with TDU interface is provided, completes relevant IR protocol processes and administration configuration function;

Fan: main realization controls the complete machine heat radiation in rack and rotating speed;

Supply module: provide external power source interface, provides TDB complete machine to power.

Certainly, described TDB can also comprise other modules, and the application discusses no longer in detail at this.

Software scenario:

1, the design of packet is transmitted

When by base station equipment transmission rfid system data, needing the data format arranging transmission, as shown in Figure 10, is the data transmission procedure schematic diagram described in the present embodiment.Include the transfer of data of up direction and the transfer of data of down direction in this figure, can find out, up direction and down direction are contrary data transmission procedure.

Up direction: serial data is sent to RRU with the form of the first packet (PACKET) by RFID device; Completing the encapsulation of serial data to Ethernet message by the serial ports <-> ether translation function of the FPGA processor in RRU, is that described first packet adds an IP head and a UDP head after encapsulation; Be source by the first packet after interpolation the one IP head and a UDP head with RRU, for the purpose of TDB network processing unit, be transferred to TDB network processing unit by transmission channel (design of transmission channel will be described below); One IP head of the first packet and a UDP head are converted to the 2nd IP head and the 2nd UDP head by TDB network processing unit, are sent to RFID server.

Down direction:

First Packet Generation to TDB network processing unit, in the first packet sent, is comprised the 2nd IP head and the 2nd UDP head by RFID server; 2nd IP head of the first packet and the 2nd UDP head are converted to an IP head and a UDP head by TDB network processing unit, are sent to RRU by transmission channel; Complete the conversion of Ethernet message to serial data by the serial ports <-> ether translation function of the FPGA processor in RRU, remove an IP head and a UDP head of the first packet; RRU is about to the data after removing heading and is sent to RFID device.

For concrete data transmission procedure, with reference to the associated description of above-described embodiment, the present embodiment is discussed no longer in detail at this.

It should be noted that, only include the first packet in Fig. 10, and specifically do not introduce the second packet, in addition, in data transmission procedure, each packet also should comprise MAC head, concrete does not describe in detail in Fig. 10, and those skilled in the art carry out processing according to actual conditions.

2, the design of transmission channel

Transmitted by the data of base station equipment carrying rfid system in the embodiment of the present application, need in base station equipment for transfer of data provides transmission channel.In order to improve efficiency of transmission, simultaneously as far as possible little on the impact of existing TD-SCDMA base station, the function that design transmission channel adopts protocol stack automatically to forward, needs to configure as follows for this reason:

Up direction:

On RRU, configuration purpose is TDB network processing unit, and gateway is three layers of route of TDB primary processor, and on TDB primary processor, configuration purpose is two layers of route of TDB network processing unit, generates transmission channel.

Namely first RRU sends data to TDB primary processor, then sends data to TDB network processing unit by TDB primary processor.

Down direction:

On TDB primary processor, configuration purpose is RRU, and gateway is three layers of route of TDB network processing unit, generates transmission channel.

Namely first RFID server sends data to TDB primary processor, then sends data to TDB network processing unit by TDB primary processor, finally sends data to RRU by TDB network processing unit.

By above-mentioned routing configuration, the automatic transmission of data in base station equipment of rfid system just can be realized by the mode adopting protocol stack automatically to forward.

As seen from Figure 10, at RRU and TDB network processing unit (Network Processor, NP) BCP DD and ETHSW is also comprised between, wherein BCP DD refers to the driving on baseband board, and its function is mainly ether and drives and the driving of ICP/IP protocol stack, and ETHSW is exchange chip, for hardware device, mainly realize function of exchange, BCP DD and ETHSW is mainly as middle forwarding capability, and the application discusses no longer in detail to this.

3, the design of serial ports <-> ether modular converter

Serial ports <-> ether transfer process is performed by RRU, primary responsibility completes up direction (RFID device->RFID server) serial ports to the conversion between Taihe county down direction (RFID server->RFID equipment) ether to serial ports, and specific implementation is as follows:

Up direction:

RFID server provides active inquiry function, first querying command is sent, by described querying command by above-mentioned downlink transfer tunnel to the serial ports <-> ether modular converter in RRU, this module detects whether have serial data, if had, then convert described serial data to Ethernet message, packing sends to transmitting element, and packet is sent by above-mentioned uplink path by this transmitting element.

Down direction:

Serial ports <-> ether modular converter receives the packet (Ethernet message form) that downlink transfer path sends, and by described Packet Generation to receiving element, convert Ethernet message to serial data by receiving element, and send data to RFID device.

4, the design of TDB network processing unit

Up direction:

Be RRU by source, object is that the heading of TDB network processing unit converts the heading that source is TDB network processing unit, object is RFID server to.

Down direction:

The heading of to be RFID server object by source be TDB network processing unit converts that source is TDB network processing unit, object is the heading of RRU to.

The present embodiment mainly describes the design of various piece on the whole, does not discuss in detail for concrete process, and relevant part is with reference to the description of above-described embodiment.

With reference to Figure 11, show the structured flowchart of a kind of data transmission system described in the embodiment of the present application four, described system comprises: the indoor equipment TDB102 of TDU101, base station and RFID server 103, described TDU101 comprises radio frequency discrimination RFID equipment 1011 and RF remote equipment RRU1012, wherein

Radio frequency discrimination RFID equipment 1011 comprises:

RFID first sending module 11, for when carrying out uplink, sends the first packet to RRU;

RFID first receiver module 12, for when carrying out downlink transfer, receives the first packet that RRU sends.

RF remote equipment RRU1012 comprises:

Serial ports ether modular converter 21, for when carrying out uplink, receives described first packet, for described first packet adds the first heading, and is joined by the first packet after interpolation first heading in the second packet self sent; When carrying out downlink transfer, receive described second packet, the first heading of the first packet is wherein removed;

RRU sending module 22, for when carrying out uplink, according to described first heading by described second Packet Generation to TDB; When carrying out downlink transfer, by the first Packet Generation after removal first heading to RFID device.

The indoor equipment TDB102 of base station comprises:

Heading modular converter 1021, for when carrying out uplink, after receiving described second packet, is converted to the second heading by the first heading of the first packet wherein; When carrying out downlink transfer, after receiving described first packet, the second heading of described first packet is converted to the first heading, and the first packet after being converted to the first heading is joined in the second packet self sent;

TDB sending module 1022, for when carrying out uplink, will be converted to the first Packet Generation after the second heading to RFID server according to described second heading; When carrying out downlink transfer, according to described first heading by described second Packet Generation to RRU.

RFID server 103 comprises:

RFID second receiver module 1031, for when carrying out uplink, receives the first packet that TDB sends;

RFID second sending module 1032, for when carrying out downlink transfer, sends the first packet to TDB.

Wherein, the indoor equipment TDB of described base station also comprises TDB primary processor and TDB network processing unit.Described first heading comprises an IP head and first user data pack protocol UDP head, and wherein, a described IP head comprises the first source IP address and the first object IP address; Described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, and wherein, described 2nd IP head comprises the second source IP address and the second object IP address;

Described RRU sending module 22 comprises:

Described TDB sending module 1022 comprises:

Described RFID second sending module 1032 comprises:

Concrete, at the up transmitting element of RRU by TDB network processing unit corresponding for described second Packet Generation to the first object IP address, and the descending transmitting element of RFID by described first Packet Generation in the process of TDB network processing unit corresponding to described second object IP address, need first by Packet Generation to TDB primary processor, then by TDB primary processor by described Packet Generation to TDB network processing unit.

Therefore, the up transmitting element of described RRU when carrying out uplink, by described second Packet Generation to TDB primary processor;

Described heading modular converter 1021 comprises:

The embodiment of the present application is in data transmission procedure, and the mode adopting protocol stack automatically to forward, in order to realize which, needs to carry out routing configuration on RRU and TDB.

Described RF remote equipment RRU also comprises:

RRU configuration module 23, for when carrying out uplink, before RRU is by described second Packet Generation to TDB, on RRU, configuration purpose is TDB network processing unit, and gateway is three layers of route of TDB primary processor;

The indoor equipment TDB of described base station also comprises:

TDB configuration module 1023, for when carrying out uplink, before RRU is by described second Packet Generation to TDB, on TDB primary processor, configuration purpose is two layers of route of TDB network processing unit; When carrying out downlink transfer, before the second heading of described first packet is converted to the first heading by TDB, on TDB primary processor, configuration purpose is RRU, and gateway is three layers of route of TDB network processing unit;

In the present embodiment, the indoor equipment TDB's of described base station is multiple to external port, described RF remote equipment RRU is multiple, in order to make described TDB to external port and described RRU one_to_one corresponding, the embodiment of the present application also needs the mapping relations setting up the external port numbers of TDB and the IP address of RRU.

Therefore, described RF remote equipment RRU also comprises:

RRU sets up module 24, for the mapping relations of the IP address of the external port numbers and described RRU of setting up described TDB;

The indoor equipment TDB of described base station also comprises:

TDB sets up module 1024, for the mapping relations of the IP address of the external port numbers and described RRU of setting up described TDB;

When carrying out transfer of data, described RRU sending module inquires about described mapping relations, by described second Packet Generation in the TDB port meeting these mapping relations; Described TDB sending module inquires about described mapping relations, by described second Packet Generation in the RRU meeting these mapping relations.

In sum, the data transmission method described by the embodiment of the present application and system have following advantage:

(1) the application devises the fusion of distributed base station and rfid system, can change different systems and different frequency range according to system requirements.

(2) adopt the standard interface of 485 to realize the fusion of two systems, the data of rfid system are transferred to TDB by the IR interface of the far-end RRU of point distributed base station, then are transferred to RFID server by TDB, achieve the data by base-station transmission rfid system.

(3) design of packet and transmission channel is transmitted: by carrying out Ethernet message encapsulation to serial data, coordinate the routing configuration on each processor, the automatic forwarding of RFID serial data in base station system can be realized, without the need to high level intervention or control, drop to minimum on the impact of existing system.

(4) design of serial ports <-> ether modular converter: serial ports <-> ether modular converter can realize the bi-directional conversion of serial data and Ethernet message; and flexible configuration can be needed according to client, such as increase various data truncation and defencive function etc.

(5) design of TDB network processing unit: by the translation function of TDB network processing unit, the two-way automatic conversion of the outside Ethernet message of inside of base station Ethernet message and base station can be realized, an externally unique IP address of TDB network processing unit is only presented to client, facilitates client to be configured.What shield inside of base station realizes details simultaneously, improves the fail safe of transfer of data.

(6) in the embodiment of the present application, RRU and RFID device can be integrated, also can be to be separated, and have higher flexibility.

For system embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.

Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.

The application can describe in the general context of computer executable instructions, such as program module.Usually, program module comprises the routine, program, object, assembly, data structure etc. that perform particular task or realize particular abstract data type.Also can put into practice the application in a distributed computing environment, in these distributed computing environment (DCE), be executed the task by the remote processing devices be connected by communication network.In a distributed computing environment, program module can be arranged in the local and remote computer-readable storage medium comprising memory device.

For aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.

Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, commodity or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, commodity or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment comprising described key element and also there is other identical element.

A kind of data transmission method above the application provided and system, be described in detail, apply specific case herein to set forth the principle of the application and execution mode, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.

Claims

1. a data transmission method, is characterized in that, comprising:

Set up the connection between the radio frequency discrimination RFID equipment of rfid system and the RF remote equipment RRU of base station, and set up the connection between the RFID server of rfid system and the indoor equipment TDB of base station;

2. method according to claim 1, is characterized in that, described TDB comprises TDB primary processor and TDB network processing unit.

3. method according to claim 2, it is characterized in that, described first heading comprises an IP head and first user data pack protocol UDP head, wherein, a described IP head comprises the first source IP address and the first object IP address, described first source IP address is the IP address of RRU, and described first object IP address is the internal IP address of TDB network processing unit;

4. method according to claim 3, is characterized in that,

Step in the described second Packet Generation TDB network processing unit that extremely described first object IP address is corresponding comprises by described RRU:

RRU by described second Packet Generation to TDB primary processor;

5. the method according to claim 2 or 4, it is characterized in that, described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, described 2nd IP head comprises the second source IP address and the second object IP address, described second source IP address is the external IP address of TDB network processing unit, and described second object IP address is the IP address of RFID server;

6. method according to claim 2, is characterized in that, RRU by described second Packet Generation to base station indoor equipment TDB before, also comprise:

7. method according to claim 1, is characterized in that, described TDB's is multiple to external port, and described RRU is multiple, and described method also comprises:

8. a data transmission method, is characterized in that, comprising:

9. method according to claim 8, is characterized in that, described TDB comprises TDB primary processor and TDB network processing unit.

10. method according to claim 9, it is characterized in that, described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, described 2nd IP head comprises the second source IP address and the second object IP address, described second source IP address is the IP address of RFID server, and described second object IP address is the external IP address of TDB network processing unit;

11. methods according to claim 10, is characterized in that,

Step in the described first Packet Generation TDB network processing unit that extremely described second object IP address is corresponding comprises by described RFID server:

RFID server by described first Packet Generation to TDB primary processor;

12. methods according to claim 9 or 11, it is characterized in that, described first heading comprises an IP head and first user data pack protocol UDP head, wherein, a described IP head comprises the first source IP address and the first object IP address, described first source IP address is the internal IP address of TDB network processing unit, and described first object IP address is the IP address of RRU;

13. methods according to claim 9, is characterized in that, before the second heading of described first packet is converted to the first heading by TDB, also comprise:

14. methods according to claim 8, is characterized in that, described TDB's is multiple to external port, and described RRU is multiple, and described method also comprises:

15. 1 kinds of data transmission systems, is characterized in that, comprising: the indoor equipment TDB of TDU, base station and RFID server, described TDU comprises radio frequency discrimination RFID equipment and RF remote equipment RRU, wherein, RFID device is connected with RRU, and RFID server is connected with TDB;

Radio frequency discrimination RFID equipment comprises:

RF remote equipment RRU comprises:

The indoor equipment TDB of base station comprises:

RFID server comprises:

16. systems according to claim 15, is characterized in that, the indoor equipment TDB of described base station also comprises TDB primary processor and TDB network processing unit.

17. systems according to claim 16, is characterized in that,

Described first heading comprises an IP head and first user data pack protocol UDP head, and wherein, a described IP head comprises the first source IP address and the first object IP address; Described second heading comprises the 2nd IP head and the second user datagram protocol UDP head, and wherein, described 2nd IP head comprises the second source IP address and the second object IP address;

18. systems according to claim 17, is characterized in that,

Described RRU sending module comprises:

Described TDB sending module comprises:

Described RFID second sending module comprises:

19. systems according to claim 18, is characterized in that,

The up transmitting element of described RRU when carrying out uplink, by described second Packet Generation to TDB primary processor;

Described heading modular converter comprises:

20. systems according to claim 16, is characterized in that,

Described RF remote equipment RRU also comprises:

The indoor equipment TDB of described base station also comprises:

21. systems according to claim 15, is characterized in that, the indoor equipment TDB's of described base station is multiple to external port, and described RF remote equipment RRU is multiple, and described RF remote equipment RRU also comprises:

The indoor equipment TDB of described base station also comprises: