CN102869045A - Data transmission method and system - Google Patents

Data transmission method and system Download PDF

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Publication number
CN102869045A
CN102869045A CN2012103243538A CN201210324353A CN102869045A CN 102869045 A CN102869045 A CN 102869045A CN 2012103243538 A CN2012103243538 A CN 2012103243538A CN 201210324353 A CN201210324353 A CN 201210324353A CN 102869045 A CN102869045 A CN 102869045A
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China
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described
tdb
packet
heading
ip address
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CN2012103243538A
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Chinese (zh)
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CN102869045B (en
Inventor
倪慧娟
段滔
倪伟
罗华
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大唐移动通信设备有限公司
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Priority to CN201210324353.8A priority Critical patent/CN102869045B/en
Publication of CN102869045A publication Critical patent/CN102869045A/en
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Publication of CN102869045B publication Critical patent/CN102869045B/en

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Abstract

The invention provides a data transmission method and system, aiming at solving the problems of transmission equipment and materials are repeatedly invested and resources are wasted. The data transmission method comprises the following steps that: an RFID (Radio Frequency Identification) device sends a first data packet to a RRU (Radio Remote Unit) of a base station; the RRU receives the first data packet, adds a first message header to the first data packet, adds the first data packet added with the first message header to a second data packet sent by the RRU per se and sends the second data packet to indoor equipment TDB of the base station according to the first message header; the TDB receives the second data packet and converts the first message header of the first data packet to a second message header; and the TDB sends the first data packet which is converted into the second message header to an RFID server in accordance with the second message header. According to the data transmission method and system, data of the RFID system can be transmitted by the base station, so that the RFID system and the base station can share one set of transmission resources, and the construction cost is saved.

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 need to be supported the function of distributed base station and radio-frequency (RF) identification (Radio Frequency Identification, RFID) system simultaneously in order to realize the design of multi-modulation scheme multiband.Present distributed base station and rfid system all are independent networkings.

With Time Division-Synchronous Code Division Multiple Access access (Time Division-Synchronous Code Division Multiple 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 Remote Unit, RRU) and interface board consist of, wherein, comprise network processing unit (Network Processor in the interface board, NP), this base station equipment can be carried 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 connecting by a pair of optical fiber), BBU is connected with interface board, interface board connects by Iub interface (logic interfacing between RNC and the 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, in rfid system, comprise two RFID servers, adopt 485 interface gateway equipments to connect between RFID server and the RFID card reader.

As seen, what adopted when carrying out transfer of data above-mentioned base station is Optical Fiber Transmission mechanism, and the employing of the transfer of data of rfid system is the ether transmission mechanism.Owing to two system of systems compositions and data transfer path etc. are all not identical, therefore, when existing wireless device is supported distributed base station and rfid system at the same time, above-mentioned two cover systems need to be installed in machine room separately, and carry out respectively transfer of data, therefore need separately configuration transfer resource for each system, thereby cause the overlapping investment of the transmission equipment such as optical fiber and material, the waste resource, construction cost is higher.

Summary of the invention

The application's technical problem to be solved provides a kind of data transmission method and system, to solve transmission equipment and material overlapping investment, the problem of waste resource.

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

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

RRU receives described the first packet, for described the first packet adds the first heading, the first packet behind interpolation the first heading is joined in the second packet that self sends, and described the first heading of foundation is with the indoor equipment TDB of described the second Packet Generation to the base station;

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

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

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

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

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

RRU searches the first purpose IP address in described the first heading, with described the second Packet Generation to TDB network processing unit corresponding to described the first purpose IP address.

Preferably, described RRU comprises described the second Packet Generation to the step in TDB network processing unit corresponding to described the first purpose IP address:

RRU with described the second Packet Generation to the TDB primary processor;

The TDB primary processor with described the second Packet Generation to the TDB network processing unit;

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

The TDB network processing unit obtains the first packet behind described interpolation the first heading from the second packet that receives;

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

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

Described TDB comprises according to the first Packet Generation to the step of RFID server that described the second heading will be converted to behind the second heading:

The TDB network processing unit is searched the second purpose IP address in described the second heading, with described the first Packet Generation to RFID server corresponding to described the second purpose IP address.

Preferably, RRU with described the second Packet Generation to the indoor equipment TDB of base station, also comprise:

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

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

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

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

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

RRU inquires about described mapping relations, with described the second Packet Generation to the TDB port that satisfies these mapping relations.

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

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

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

The first packet that TDB will be converted to behind the first heading joins in the second packet that self sends, and described the first heading of foundation is with the RF remote equipment RRU of described the second Packet Generation to the base station;

RRU receives described the second packet, the first heading of wherein the first packet is removed, and will be removed the first Packet Generation behind the first heading to RFID equipment.

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

Preferably, described the second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, comprise the second source IP address and the second purpose IP address in described the 2nd IP head, the IP address that described the second source IP address is the RFID server, described the second purpose 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 the second message hair:

The second purpose IP address in described the second heading of RFID whois lookup, with described the first Packet Generation to TDB network processing unit corresponding to described the second purpose IP address.

Preferably, described RFID server comprises described the first Packet Generation to the step in TDB network processing unit corresponding to described the second purpose IP address:

The RFID server with described the first Packet Generation to the TDB primary processor;

The TDB primary processor with described the first Packet Generation to the TDB network processing unit;

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

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

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

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

The TDB network processing unit is searched the first purpose IP address in described the first heading, with described the second Packet Generation to RRU corresponding to described the first purpose IP address.

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

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

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

The TDB primary processor by described transmission channel with the second Packet Generation to described RRU.

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

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

TDB inquires about described mapping relations, with described the second Packet Generation to the RRU that satisfies 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 comprise radio frequency discrimination RFID equipment and RF remote equipment RRU, wherein,

Radio frequency discrimination RFID equipment comprises:

RFID the first sending module is used for sending the first packet to RRU when carrying out uplink;

RFID the first receiver module is used for receiving the first packet that RRU sends when carrying out downlink transfer;

RF remote equipment RRU comprises:

Serial ports ether modular converter is used for receiving described the first packet when carry out uplink, for described the first packet adds the first heading, and joins in the second packet of self transmission adding the first packet behind the first heading; When carrying out downlink transfer, receive described the second packet, the first heading of wherein the first packet is removed;

The RRU sending module is used for when carry out uplink, described the first heading of foundation with described the second Packet Generation to TDB; When carrying out downlink transfer, will remove the first Packet Generation behind the first heading to RFID equipment;

The indoor equipment TDB of base station comprises:

The heading modular converter is used for when carrying out uplink, receive described the second packet after, the first heading of wherein the first packet is converted to the second heading; When carrying out downlink transfer, receive described the first packet after, the second heading of described the first packet is converted to the first heading, and first packet that will be converted to behind the first heading joins in the second packet that self sends;

The TDB sending module is used for when carry out uplink, and described the second heading of foundation will be converted to the first Packet Generation behind the second heading to the RFID server; When carrying out downlink transfer, according to described the first heading with described the second Packet Generation to RRU;

The RFID server comprises:

RFID the second receiver module is used for receiving the first packet that TDB sends when carrying out uplink;

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

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

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

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

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

Preferably, described RRU sending module comprises:

The up transmitting element of RRU is used for searching the first purpose IP address in described the first heading when carry out uplink, with described the second Packet Generation extremely in TDB network processing unit corresponding to described the first purpose IP address;

Described TDB sending module comprises:

The up transmitting element of TDB is used for searching the second purpose IP address in described the second heading when carry out uplink, with described the first Packet Generation extremely in RFID server corresponding to described the second purpose IP address;

The descending transmitting element of TDB is used for searching the first purpose IP address in described the first heading when carry out downlink transfer, with described the second Packet Generation extremely among RRU corresponding to described the first purpose IP address;

Described RFID the second sending module comprises:

The descending transmitting element of RFID is used for searching the second purpose IP address in described the second heading when carry out downlink transfer, with described the first Packet Generation extremely in TDB network processing unit corresponding to described the second purpose IP address.

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

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

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

Described heading modular converter comprises:

Acquiring unit is used for when carrying out uplink, obtains the first packet behind described interpolation the first heading from the second packet that receives;

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

Preferably, described RF remote equipment RRU also comprises:

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

The indoor equipment TDB of described base station also comprises:

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

When carrying out uplink, described three layers of route and the described two layers of route that dispose at the TDB primary processor that dispose at RRU generate transmission channel;

When carrying out downlink transfer, described three layers of route that dispose at the TDB primary processor generate transmission channel;

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

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

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

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

The indoor equipment TDB of described base station also comprises:

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

Described RRU sending module is inquired about described mapping relations, with described the second Packet Generation to the TDB port that satisfies these mapping relations;

Described TDB sending module is inquired about described mapping relations, with described the second Packet Generation to the RRU that satisfies these mapping relations.

Compared with prior art, the application comprises following advantage:

The application is by the connection between the RRU that sets up RFID equipment in the rfid system and base station, and set up connection between the TDB of RFID server in the rfid system and base station, the data of transmitting in the rfid system can be sent in the base station, and the first data that rfid system is transmitted join in the second data of base-station transmission, by the first data that the second data of base-station transmission are carried rfid system, last base station is sent to rfid system with described the first data again.By said process, can overlap transfer resource thereby make rfid system and base station can share one by the data of base-station transmission rfid system, save construction cost.

Description of drawings

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

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

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

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

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

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

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

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

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

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

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

Embodiment

For above-mentioned purpose, the feature and advantage that make the application can become apparent more, 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, can utilize the data of the distributed base station system transmission rfid system of having built up, therefore, need not to build again a complete set of RFID transmission system, reduce the wasting of resources that causes owing to repeated construction, saved construction cost.

Take the TD-SCDMA base station equipment as example, adopt the Optical Fiber Transmission mode between the RF remote equipment RRU of base station and the indoor equipment TDB of base station, in order to realize the application demand of long distance, and adopt the Ethernet transmission means between RFID equipment and the RFID server.In order to allow rfid system and TD-SCDMA base station common transmitted resource, if consider to use the Ethernet transmission means, the advantage of long-distance transmissions can be lost in the TD-SCDMA base station like this, also can impact the required transmission bandwidth in TD-SCDMA base station.Therefore, the application adopts based on TD-SCDMA system bearing rfid system data transfer method.

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

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

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

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

The embodiment of the present application at first will be set up rfid system and is connected connection with distributed base station, being connected between the concrete radio frequency discrimination RFID equipment of setting up rfid system and the RF remote equipment RRU of base station, and set up connection between the indoor equipment TDB of the RFID server of rfid system and base station.After the connection of having set up between two systems, rfid system can send data in the base station, and the data that send by the described rfid system of base-station transmission.

Need to prove, being connected between above-mentioned RFID equipment and the RRU, and the connection between RFID server and the TDB can be adopted wired connection mode (for example adopting with large connection), can also adopt wireless connections mode (for example adopting optical fiber to connect), the application is not limited concrete connected mode.

In the uplink process, the transfer of data that RFID equipment need to be gathered in the RFID server, therefore, RFID equipment need to the first Packet Generation of its collection to the RRU of this RFID equipment connection in.

Step S302, RRU receives described the first packet, for described the first packet adds the first heading, the first packet behind interpolation the first heading is joined in the second packet that self sends, and described the first heading of foundation is with the indoor equipment TDB of described the second Packet Generation to the base station.

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

As shown in Figure 4, be the data structure schematic diagram of TD-SCDMA base-station transmission.The carrying data segment that distributes except the data of eating dishes without rice or wine to TD-SCDMA (IQ data) in the IR data frame structure as can be seen from Figure, also designed the dedicated segments that is used for control channel and carries out Operation and Maintenance: C﹠amp; The M data segment.

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

Therefore, in the present embodiment, the data that can obtain by the RFID equipment that IR optical fiber will be connected with RRU are passed through C﹠amp in the mode of ether packet; The M data segment is sent among the TDB, and is sent to outside RFID server end by the ethernet switch structure among the TDB again.

In this step, RRU receives after the first packet of RFID equipment transmission, at first adds the first heading for described the first packet, and described the first heading is used for the transmission direction of data of description; Then RRU joins with adding the first packet behind the first heading that (described the second packet is the above-mentioned data of eating dishes without rice or wine in the second packet that self sends, the application discusses no longer in detail to concrete data structure), according to above-mentioned description, be about in the present embodiment described the first packet and join C﹠amp in described the second packet; The M data segment; Last RRU,, will discuss for concrete process of transmitting the indoor equipment TDB of described the second Packet Generation to the base station in the following embodiments in detail according to described the first heading.

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

TDB is after receiving described the second packet, needs general the first Packet Generation wherein is to the RFID server, this moment, variation occured in transmission channel, therefore, TDB will be converted to the second heading with the first heading of wherein the first packet, the transmission direction that described the second heading is used for describing TDB when transmitting described the first packet.

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

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

The embodiment of the present application is by the connection between the RRU that sets up RFID equipment in the rfid system and base station, and set up connection between the TDB of RFID server in the rfid system and base station, the data of transmitting in the rfid system can be sent in the base station, and the first data that rfid system is transmitted join in the second data of base-station transmission, by the first data that the second data of base-station transmission are carried rfid system, last base station is sent to rfid system with described the first data again.By said process, can overlap transfer resource thereby make rfid system and base station can share one by the data of base-station transmission rfid system, save construction cost.

With reference to Fig. 5, be the flow chart of the embodiment of the present application two described a kind of data transmission methods, the data transmission procedure that present embodiment is described when remaining uplink (namely from the RFID device transmission to the RFID server).

Described data transmission method comprises:

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

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

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

Therefore, present embodiment carries out above-mentioned routing configuration, with the transmission channel of generated data.Wherein, three layers of route refer to route (route) table, two layers of route refer to address resolution protocol (Address Resolution Protocol, ARP) table, configuration makes the transmission control protocol that packet can be by standard/Internet Interconnection agreement (Transmission Control Protocol/Internet Protocol like this, TCP/IP) protocol stack is transmitted automatically, and does not need newly-increased code to realize.According to this transmission channel, can automatically transmit packet wherein.

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

In the embodiment of the present application, in order to improve data-handling efficiency, each TDB comprises a plurality of to external port, and each TDB links to each other with a plurality of RRU simultaneously, and therefore, each RFID server also links to each other with a plurality of RFID equipment simultaneously indirectly.Therefore, in order to distinguish a plurality of RRU (also namely distinguishing a plurality of RFID equipment), the external port numbers of the embodiment of the present application by setting up TDB and the mapping relations of the IP address of described RRU can be mapped the external port numbers of described RRU and TDB one by one.

When RRU need to be when the second Packet Generation be to the TDB, RRU at first inquires about described mapping relations, then with described the second Packet Generation to the TDB port that satisfies these mapping relations, by this TDB port further with described the second Packet Generation to the TDB network processing unit.

Step S504, RRU receives described the first packet, for described the first packet adds the first heading, the first packet behind interpolation the first heading is joined in the second packet that self sends, and described the first heading of foundation is with the indoor equipment TDB of described the second Packet Generation to the base station.

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

Second packet that can will carry the first packet according to the first source IP address in described the first heading and the first purpose IP address is sent to the TDB network processing unit from RRU.

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

Step S5041, RRU search the first purpose IP address in described the first heading, with described the second Packet Generation to TDB network processing unit corresponding to described the first purpose IP address.

Associated description according to above-mentioned steps S502, described RRU by described transmission channel with the second Packet Generation to described TDB network processing unit, RRU needs to transmit described the second packet through the TDB primary processor in the process with described the second Packet Generation corresponding TDB network processing unit to described the first purpose IP address.Therefore, this step S5041 comprises:

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

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

Can with the second Packet Generation to TDB network processing unit corresponding to described the first purpose IP address, can know that according to the first source IP address the source of this second packet is RRU by the first purpose IP address.

Need to prove, 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 for the described TDB network processing unit of identification between inside of base station equipment, and external IP address is used for the described TDB network processing unit of identification between base station and the other system.

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

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

This step is carried out by the TDB network processing unit, specifically comprises:

Step a1, TDB network processing unit obtain the first packet behind described interpolation the first heading from the second packet that receives.

At first, the TDB network processing unit need to get access to the first packet wherein from the second packet that receives.Concrete, can be before RRU joins described the first packet the second packet that himself sends, the type of message of this first packet is set, thereby the first packet and the second packet are distinguished, therefore, the TDB network processing unit can get access to described the first packet according to this type of message.

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

Step a2, TDB network processing unit remove the first heading of described the first packet, and add the second heading for described the first packet.

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

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

This process is carried out by the TDB network processing unit, and the TDB network processing unit can will be converted to the first Packet Generation behind the second heading to the RFID server according to the second source IP address in the second heading and the second purpose IP address, specifically comprise:

Step S5061, TDB network processing unit search the second purpose IP address in described the second heading, with described the first Packet Generation to RFID server corresponding to described the second purpose IP address.

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

The embodiment of the present application has been discussed 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 IP address of the external port numbers of TDB and described RRU, and the routing configuration on RRU and the TDB primary processor can realize the automatic transmission of data, do not need newly-increased code, thereby by the data of base-station transmission rfid system, realized that two systems share a cover transfer resource, save construction cost.

With reference to Fig. 6, show the flow chart of the embodiment of the present application three described a kind of data transmission methods, the data transmission procedure that present embodiment is described when being downlink transfer (namely being transferred to RFID equipment from the RFID server).

Described data transmission method comprises:

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

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

Concrete, described TDB comprises TDB primary processor and TDB network processing unit.Described the second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, comprise the second source IP address and the second purpose IP address in described the 2nd IP head, the IP address that described the second source IP address is the RFID server, described the second purpose 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 the second message hair:

Step S6011, the second purpose IP address in described the second heading of RFID whois lookup, with described the first Packet Generation to TDB network processing unit corresponding to described the second purpose IP address.

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

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

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

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

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

By carrying out above-mentioned routing configuration, with the transmission channel of generated data, configuration can be transmitted automatically by the ICP/IP protocol stack of standard packet like this, and does not need newly-increased code to realize.According to this transmission channel, get final product the packet in the automatic transmission system.

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

In the embodiment of the present application, in order to improve data-handling efficiency, each TDB comprises a plurality of to external port, and each TDB links to each other with a plurality of RRU simultaneously, and therefore, each RFID server also links to each other with a plurality of RFID equipment simultaneously indirectly.Therefore, in order to distinguish a plurality of RRU (also namely distinguishing a plurality of RFID equipment), the external port numbers of the embodiment of the present application by setting up TDB and the mapping relations of the IP address of described RRU can be mapped the external port numbers of described RRU and TDB one by one.

Need to be when the second Packet Generation be to the RRU as TDB, TDB at first inquires about described mapping relations, then the port by correspondence with described the second Packet Generation to the RRU that satisfies these mapping relations.

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

This process is carried out by the TDB network processing unit, and the TDB network processing unit is after the first packet that receives the transmission of TDB primary processor, and at first the second heading with the first packet is converted to the first heading, specifically comprises:

Step b1, TDB network processing unit remove the second heading of described the first packet, and add the first heading for described the first packet.

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

The first packet that step S605, TDB will be converted to behind the first heading joins in the second packet that self sends, and described the first heading of foundation is with the RF remote equipment RRU of described the second Packet Generation to the base station.

The 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 the first heading and the first purpose IP address.

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

Step S6051, TDB network processing unit search the first purpose IP address in described the first heading, with described the second Packet Generation to RRU corresponding to described the first purpose IP address.

Can with the second Packet Generation to RRU corresponding to described the first purpose IP address, can know that according to the first source IP address the source of this second packet is the TDB network processing unit by the first purpose IP address.

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

The TDB primary processor by described transmission channel with the second Packet Generation to described RRU, concrete, by described transmission channel first with described the second Packet Generation to the TDB network processing unit, again by the TDB network processing unit by described transmission channel with described the second Packet Generation to RRU.

Step S606, RRU receive described the second packet, the first heading of wherein the first packet is removed, and will be removed the first Packet Generation behind the first heading to RFID equipment.

This step specifically comprises:

Step c1, RRU obtain described the first packet that is converted to behind the first heading from the second packet that receives.

At first, RRU need to get access to the first packet wherein from the second packet that receives.Concrete, can be before the TDB network processing unit joins described the first packet the second packet that himself sends, the type of message of this first packet is set, thereby the first packet and the second packet are distinguished, therefore, RRU can get access to described the first packet according to this type of message.

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

The first heading of the first packet that step c2, RRU will get access to is removed, and will remove the first Packet Generation behind the first heading to RFID equipment.

The embodiment of the present application has been discussed the data transmission procedure of down direction in detail, it is opposite 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 IP address of the external port numbers of TDB and described RRU, and the routing configuration on the TDB primary processor can realize the automatic transmission of data, by the data of base-station transmission rfid system, realized that two systems share a cover transfer resource.

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

In order to support better the multi-modulation scheme multiband, and the extensibility of raising system, the application carries out system with the TD-SCDMA base station equipment and connects design with rfid system, transmission channel by the TD-SCDMA base station is carried out transparent transmission with the RFID base band data, simplify the project installation complexity, optimize the radio system network performance.Combine two kinds of designs of hardware and software in the present embodiment.

Hardware plan:

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

At first, respectively the structure of TDU and TDB is introduced.

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

Wherein, RFID radio-frequency module and RRU radio-frequency module send data or receive extraneous data of sending by the radio-frequency antenna interface respectively to the external world; The RFID radio-frequency module is connected with the RFID mainboard, and the RRU radio-frequency module is connected with the RRU mainboard; Connect by 485 interfaces between RFID mainboard and the RRU mainboard, thus realization transfer of data between the two.

Comprise FPGA processor and optical module in the RRU mainboard, wherein the FPGA processor is mainly realized following functions:

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

(2), for providing Universal Asynchronous Receiver ﹠, the RFID mainboard sends (Universal Asynchronous Receiver/Transmitter, UART) module and hardware interface, the path of realization RFID the transmission of data;

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

(4), realize string and conversion and the data transmission module of two IR interfaces, in order to the up-downgoing data are received and transmit.

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

Optical module mainly is to send data by the extraneous data of sending of optical fiber interface reception or to the external world.

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

Master control borad: control processing and the signaling processing capacity of finishing base station system;

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

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

Supply module: the external power source interface is provided, the power supply of TDB complete machine is provided.

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

Software scenario:

1, the design of the transmission of data bag

By base station equipment transmission rfid system data the time, the data format of transmission need to be set, as shown in figure 10, be the described data transmission procedure schematic diagram of present embodiment.The transfer of data of up direction and the transfer of data of down direction have been comprised among this figure, can find out that up direction and down direction are opposite data transmission procedure.

Up direction: RFID equipment is sent to RRU with serial data with the form of the first packet (PACKET); Serial ports by the FPGA processor among the RRU<-〉 the ether translation function finishes serial data to the encapsulation of Ethernet message, adds an IP head and a UDP head for described the first packet after the encapsulation; The first packet behind interpolation the one IP head and the UDP head take RRU as the source, take the TDB network processing unit as purpose, is transferred to the TDB network processing unit by transmission channel (design of transmission channel will be described below); The TDB network processing unit is converted to the 2nd IP head and the 2nd UDP head with an IP head and a UDP head of the first packet, is sent to the RFID server.

Down direction:

The RFID server to the TDB network processing unit, in the first packet that sends, comprises the 2nd IP head and the 2nd UDP head with the first Packet Generation; The TDB network processing unit is converted to an IP head and a UDP head with the 2nd IP head and the 2nd UDP head of the first packet, is sent to RRU by transmission channel; Serial ports by the FPGA processor among the RRU<-〉 the ether translation function finishes Ethernet message to the conversion of serial data, removes an IP head and a UDP head of the first packet; The data that RRU is about to remove behind the heading are sent to RFID equipment.

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

Need to prove, in Figure 10, included only the first packet, and specifically do not introduce the second packet, in addition, each packet also should comprise the MAC head in data transmission procedure, concrete does not describe in detail in Figure 10, and those skilled in the art process according to actual conditions and get final product.

2, the design of transmission channel

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

Up direction:

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

Be that RRU at first sends data to the TDB primary processor, send data to the TDB network processing unit by the TDB primary processor again.

Down direction:

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

Be that the RFID server at first sends data to the TDB primary processor, send data to the TDB network processing unit by the TDB primary processor again, send data to RRU by the TDB network processing unit at last.

By above-mentioned routing configuration, just can realize by the mode that adopts protocol stack automatically to transmit the automatic transmission of data in base station equipment of rfid system.

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

3, serial ports<-〉 design of ether modular converter

Serial ports<-〉 the ether transfer process carried out by RRU, mainly be responsible for finishing up direction (RFID equipment-〉 RFID server) serial ports to ether is to the conversion between the serial ports with Taihe county down direction (RFID server-〉 RFID equipment), specific implementation is as follows:

Up direction:

The RFID server provides the active inquiry function, at first send querying command, with described querying command by above-mentioned downlink transfer path be transferred to serial ports among the RRU<-〉 the ether modular converter, whether this module detects serial data, if have, then convert described serial data to Ethernet message, packing sends to transmitting element, and this transmitting element sends packet by above-mentioned uplink path.

Down direction:

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

4, the design of TDB network processing unit

Up direction:

Be that RRU, purpose are that to convert the source to be that TDB network processing unit, purpose are the heading of RFID server for the heading of TDB network processing unit with the source.

Down direction:

Be that RFID server purpose is that to convert the source to be that TDB network processing unit, purpose are the heading of RRU for the heading of TDB network processing unit with the source.

Present embodiment has mainly been described the design of various piece on the whole, does not discuss in detail for concrete process, and relevant part gets final product with reference to the description of above-described embodiment.

With reference to Figure 11, show the structured flowchart of the embodiment of the present application four described a kind of data transmission systems, 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 the first sending module 11 is used for sending the first packet to RRU when carrying out uplink;

RFID the first receiver module 12 is used for receiving the first packet that RRU sends when carrying out downlink transfer.

RF remote equipment RRU1012 comprises:

Serial ports ether modular converter 21 is used for receiving described the first packet when carry out uplink, for described the first packet adds the first heading, and joins in the second packet of self transmission adding the first packet behind the first heading; When carrying out downlink transfer, receive described the second packet, the first heading of wherein the first packet is removed;

RRU sending module 22 is used for when carry out uplink, described the first heading of foundation with described the second Packet Generation to TDB; When carrying out downlink transfer, will remove the first Packet Generation behind the first heading to RFID equipment.

The indoor equipment TDB102 of base station comprises:

Heading modular converter 1021 is used for when carrying out uplink, receive described the second packet after, the first heading of wherein the first packet is converted to the second heading; When carrying out downlink transfer, receive described the first packet after, the second heading of described the first packet is converted to the first heading, and first packet that will be converted to behind the first heading joins in the second packet that self sends;

TDB sending module 1022 is used for when carry out uplink, and described the second heading of foundation will be converted to the first Packet Generation behind the second heading to the RFID server; When carrying out downlink transfer, according to described the first heading with described the second Packet Generation to RRU.

RFID server 103 comprises:

RFID the second receiver module 1031 is used for receiving the first packet that TDB sends when carrying out uplink;

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

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

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

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

Described RRU sending module 22 comprises:

The up transmitting element of RRU is used for searching the first purpose IP address in described the first heading when carry out uplink, with described the second Packet Generation extremely in TDB network processing unit corresponding to described the first purpose IP address;

Described TDB sending module 1022 comprises:

The up transmitting element of TDB is used for searching the second purpose IP address in described the second heading when carry out uplink, with described the first Packet Generation extremely in RFID server corresponding to described the second purpose IP address;

The descending transmitting element of TDB is used for searching the first purpose IP address in described the first heading when carry out downlink transfer, with described the second Packet Generation extremely among RRU corresponding to described the first purpose IP address;

Described RFID the second sending module 1032 comprises:

The descending transmitting element of RFID is used for searching the second purpose IP address in described the second heading when carry out downlink transfer, with described the first Packet Generation extremely in TDB network processing unit corresponding to described the second purpose IP address.

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

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

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

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

Described heading modular converter 1021 comprises:

Acquiring unit is used for when carrying out uplink, obtains the first packet behind described interpolation the first heading from the second packet that receives;

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

The embodiment of the present application in data transmission procedure, the mode that adopts protocol stack automatically to transmit, in order to realize this mode, need to be in RRU and the enterprising walking along the street of TDB by configuration.

Described RF remote equipment RRU also comprises:

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

The indoor equipment TDB of described base station also comprises:

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

When carrying out uplink, described three layers of route and the described two layers of route that dispose at the TDB primary processor that dispose at RRU generate transmission channel;

When carrying out downlink transfer, described three layers of route that dispose at the TDB primary processor generate transmission channel;

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

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

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

Therefore, described RF remote equipment RRU also comprises:

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

The indoor equipment TDB of described base station also comprises:

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

When carrying out transfer of data, described RRU sending module is inquired about described mapping relations, with described the second Packet Generation to the TDB port that satisfies these mapping relations; Described TDB sending module is inquired about described mapping relations, with described the second Packet Generation to the RRU that satisfies these mapping relations.

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

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

(2) standard interface of employing 485 is realized the fusion of two systems, and the IR interface of the far-end RRU of the undue distributed base station of data communication device of rfid system is transferred to TDB, is transferred to the RFID server by TDB again, has realized the data by the base-station transmission rfid system.

(3) design of the transmission of data bag and transmission channel: by serial data being carried out the Ethernet message encapsulation, cooperate the routing configuration on each processor, can realize the automatic forwarding of RFID serial data in base station system, need not high-rise the intervention or control, drop to minimum on the impact of existing system.

(4) serial ports<-〉 design of ether modular converter: serial ports<-〉 the ether modular converter can realize the bi-directional conversion of serial data and Ethernet message, and can be according to client's needs flexible configuration, such as increasing various data truncations and defencive function etc.

(5) design of TDB network processing unit: by the translation function of TDB network processing unit, can realize the two-way automatic conversion of the outside Ethernet message in inside of base station Ethernet message and base station, the client is only presented an externally unique IP address of TDB network processing unit, make things convenient for the client to be configured.Shielded simultaneously the realization details of inside of base station, the fail safe that has improved transfer of data.

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

For system embodiment because itself and embodiment of the method basic simlarity, so describe fairly simple, relevant part gets final product referring to the part explanation 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 and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.

The application can describe in the general context of the computer executable instructions of being carried out by computer, for example program module.Usually, program module comprises the routine carrying out particular task or realize particular abstract data type, program, object, assembly, data structure etc.Also can in distributed computing environment (DCE), put into practice the application, in these distributed computing environment (DCE), be executed the task by the teleprocessing equipment that is connected by communication network.In distributed computing environment (DCE), program module can be arranged in the local and remote computer-readable storage medium that comprises memory device.

For aforesaid each embodiment of the method, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to 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 the specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.

At last, also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby not only comprise those key elements so that comprise process, method, commodity or the equipment of a series of key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, commodity or equipment.Do not having in the situation of more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment that comprises described key element and also have other identical element.

More than a kind of data transmission method and system that the application is provided, be described in detail, used specific case herein the application's principle and execution mode are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, the thought according to the application all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.

Claims (21)

1. a data transmission method is characterized in that, comprising:
Radio frequency discrimination RFID equipment sends the first packet to the RF remote equipment RRU of base station;
RRU receives described the first packet, for described the first packet adds the first heading, the first packet behind interpolation the first heading is joined in the second packet that self sends, and described the first heading of foundation is with the indoor equipment TDB of described the second Packet Generation to the base station;
Described TDB receives described the second packet, and the first heading of wherein the first packet is converted to the second heading;
Described TDB will be converted to the first Packet Generation behind the second heading to the RFID server according to described the second heading.
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 the first heading comprises an IP head and first user data pack protocol UDP head, wherein, comprise the first source IP address and the first purpose IP address in the described IP head, the IP address that described the first source IP address is RRU, described the first purpose IP address is the internal IP address of TDB network processing unit;
Described RRU comprises the step of described the second Packet Generation to the indoor equipment TDB of base station according to described the first heading:
RRU searches the first purpose IP address in described the first heading, with described the second Packet Generation to TDB network processing unit corresponding to described the first purpose IP address.
4. method according to claim 3 is characterized in that,
Described RRU comprises described the second Packet Generation to the step in TDB network processing unit corresponding to described the first purpose IP address:
RRU with described the second Packet Generation to the TDB primary processor;
The TDB primary processor with described the second Packet Generation to the TDB network processing unit;
Described TDB receives described the second packet, and the step that the first heading of wherein the first packet is converted to the second heading comprises:
The TDB network processing unit obtains the first packet behind described interpolation the first heading from the second packet that receives;
The TDB network processing unit is removed the first heading of described the first packet, and adds the second heading for described the first packet.
5. according to claim 2 or 4 described methods, it is characterized in that, described the second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, comprise the second source IP address and the second purpose IP address in described the 2nd IP head, described the second source IP address is the external IP address of TDB network processing unit, and described the second purpose IP address is the IP address of RFID server;
Described TDB comprises according to the first Packet Generation to the step of RFID server that described the second heading will be converted to behind the second heading:
The TDB network processing unit is searched the second purpose IP address in described the second heading, with described the first Packet Generation to RFID server corresponding to described the second purpose IP address.
6. method according to claim 2 is characterized in that, RRU with described the second Packet Generation to the indoor equipment TDB of base station, also comprise:
Configuration purpose is the TDB network processing unit on RRU, and gateway is three layers of route of TDB primary processor, and configuration purpose is two layers of route of TDB network processing unit on the TDB primary processor, generates transmission channel;
Described RRU with described the second Packet Generation to the step of the indoor equipment TDB of base station is:
Described RRU by described transmission channel with the second Packet Generation to described TDB network processing unit.
7. method according to claim 1 is characterized in that, described TDB's is a plurality of to external port, and described RRU is a plurality of, and described method also comprises:
Set up the mapping relations of the IP address of the external port numbers of described TDB and described RRU;
RRU inquires about described mapping relations, with described the second Packet Generation to the TDB port that satisfies these mapping relations.
8. a data transmission method is characterized in that, comprising:
The radio frequency discrimination RFID server sends the first packet to the indoor equipment TDB of base station, comprises the second heading in described the first packet, and described RFID server send the first packet according to described the second message hair;
TDB receives described the first packet, and the second heading of described the first packet is converted to the first heading;
The first packet that TDB will be converted to behind the first heading joins in the second packet that self sends, and described the first heading of foundation is with the RF remote equipment RRU of described the second Packet Generation to the base station;
RRU receives described the second packet, the first heading of wherein the first packet is removed, and will be removed the first Packet Generation behind the first heading to RFID equipment.
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 the second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, comprise the second source IP address and the second purpose IP address in described the 2nd IP head, the IP address that described the second source IP address is the RFID server, described the second purpose 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 the second message hair:
The second purpose IP address in described the second heading of RFID whois lookup, with described the first Packet Generation to TDB network processing unit corresponding to described the second purpose IP address.
11. method according to claim 10 is characterized in that,
Described RFID server comprises described the first Packet Generation to the step in TDB network processing unit corresponding to described the second purpose IP address:
The RFID server with described the first Packet Generation to the TDB primary processor;
The TDB primary processor with described the first Packet Generation to the TDB network processing unit;
Described TDB comprises the step that the second heading of described the first packet is converted to the first heading:
The TDB network processing unit is removed the second heading of described the first packet, and adds the first heading for described the first packet.
12. according to claim 9 or 11 described methods, it is characterized in that, described the first heading comprises an IP head and first user data pack protocol UDP head, wherein, comprise the first source IP address and the first purpose IP address in the described IP head, described the first source IP address is the internal IP address of TDB network processing unit, and described the first purpose IP address is the IP address of RRU;
Described TDB comprises the step of described the second Packet Generation to the RF remote equipment RRU of base station according to described the first heading:
The TDB network processing unit is searched the first purpose IP address in described the first heading, with described the second Packet Generation to RRU corresponding to described the first purpose IP address.
13. method according to claim 9 is characterized in that, before TDB is converted to the first heading with the second heading of described the first packet, also comprises:
Configuration purpose is RRU on the TDB primary processor, and gateway is three layers of route of TDB network processing unit, generates transmission channel;
Described TDB with described the second Packet Generation to the step of the RF remote equipment RRU of base station is:
The TDB primary processor by described transmission channel with the second Packet Generation to described RRU.
14. method according to claim 8 is characterized in that, described TDB's is a plurality of to external port, and described RRU is a plurality of, and described method also comprises:
Set up the mapping relations of the IP address of the external port numbers of described TDB and described RRU;
TDB inquires about described mapping relations, with described the second Packet Generation to the RRU that satisfies these mapping relations.
15. a data transmission system is characterized in that, comprising: the indoor equipment TDB of TDU, base station and RFID server, described TDU comprise radio frequency discrimination RFID equipment and RF remote equipment RRU, wherein,
Radio frequency discrimination RFID equipment comprises:
RFID the first sending module is used for sending the first packet to RRU when carrying out uplink;
RFID the first receiver module is used for receiving the first packet that RRU sends when carrying out downlink transfer;
RF remote equipment RRU comprises:
Serial ports ether modular converter is used for receiving described the first packet when carry out uplink, for described the first packet adds the first heading, and joins in the second packet of self transmission adding the first packet behind the first heading; When carrying out downlink transfer, receive described the second packet, the first heading of wherein the first packet is removed;
The RRU sending module is used for when carry out uplink, described the first heading of foundation with described the second Packet Generation to TDB; When carrying out downlink transfer, will remove the first Packet Generation behind the first heading to RFID equipment;
The indoor equipment TDB of base station comprises:
The heading modular converter is used for when carrying out uplink, receive described the second packet after, the first heading of wherein the first packet is converted to the second heading; When carrying out downlink transfer, receive described the first packet after, the second heading of described the first packet is converted to the first heading, and first packet that will be converted to behind the first heading joins in the second packet that self sends;
The TDB sending module is used for when carry out uplink, and described the second heading of foundation will be converted to the first Packet Generation behind the second heading to the RFID server; When carrying out downlink transfer, according to described the first heading with described the second Packet Generation to RRU;
The RFID server comprises:
RFID the second receiver module is used for receiving the first packet that TDB sends when carrying out uplink;
RFID the second sending module is used for sending the first packet to TDB when carrying out downlink transfer.
16. system 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. system according to claim 16 is characterized in that,
Described the first heading comprises an IP head and first user data pack protocol UDP head, wherein, comprises the first source IP address and the first purpose IP address in the described IP head; Described the second heading comprises the 2nd IP head and the second user datagram protocol UDP head, wherein, comprises the second source IP address and the second purpose IP address in described the 2nd IP head;
When carrying out uplink, the IP address that described the first source IP address is RRU, described the first purpose IP address is the internal IP address of TDB network processing unit; Described the second source IP address is the external IP address of TDB network processing unit, and described the second purpose IP address is the IP address of RFID server;
When carrying out downlink transfer, described the first source IP address is the internal IP address of TDB network processing unit, and described the first purpose IP address is the IP address of RRU; The IP address that described the second source IP address is the RFID server, described the second purpose IP address is the external IP address of TDB network processing unit.
18. system according to claim 17 is characterized in that,
Described RRU sending module comprises:
The up transmitting element of RRU is used for searching the first purpose IP address in described the first heading when carry out uplink, with described the second Packet Generation extremely in TDB network processing unit corresponding to described the first purpose IP address;
Described TDB sending module comprises:
The up transmitting element of TDB is used for searching the second purpose IP address in described the second heading when carry out uplink, with described the first Packet Generation extremely in RFID server corresponding to described the second purpose IP address;
The descending transmitting element of TDB is used for searching the first purpose IP address in described the first heading when carry out downlink transfer, with described the second Packet Generation extremely among RRU corresponding to described the first purpose IP address;
Described RFID the second sending module comprises:
The descending transmitting element of RFID is used for searching the second purpose IP address in described the second heading when carry out downlink transfer, with described the first Packet Generation extremely in TDB network processing unit corresponding to described the second purpose IP address.
19. system according to claim 18 is characterized in that,
The up transmitting element of described RRU when carrying out uplink, with described the second Packet Generation to the TDB primary processor;
The descending transmitting element of described RFID when carrying out downlink transfer, with described the first Packet Generation to the TDB primary processor;
Described TDB primary processor is used for when carrying out uplink, with described the second Packet Generation to the TDB network processing unit; When carrying out downlink transfer, with described the first Packet Generation to the TDB network processing unit;
Described heading modular converter comprises:
Acquiring unit is used for when carrying out uplink, obtains the first packet behind described interpolation the first heading from the second packet that receives;
Converting unit is used for removing the first heading of described the first packet, and adding the second heading for described the first packet when carrying out uplink; When carrying out downlink transfer, remove the second heading of described the first packet, and add the first heading for described the first packet.
20. system according to claim 16 is characterized in that,
Described RF remote equipment RRU also comprises:
The RRU configuration module is used for when carrying out uplink, RRU with described the second Packet Generation to the TDB, configuration purpose is the TDB network processing unit on RRU, gateway is three layers of route of TDB primary processor;
The indoor equipment TDB of described base station also comprises:
The TDB configuration module is used for when carrying out uplink, RRU with described the second Packet Generation to the TDB, configuration purpose is two layers of route of TDB network processing unit on the TDB primary processor; When carrying out downlink transfer, before TDB was converted to the first heading with the second heading of described the first packet, configuration purpose was RRU on the TDB primary processor, and gateway is three layers of route of TDB network processing unit;
When carrying out uplink, described three layers of route and the described two layers of route that dispose at the TDB primary processor that dispose at RRU generate transmission channel;
When carrying out downlink transfer, described three layers of route that dispose at the TDB primary processor generate transmission channel;
Described RRU sending module when carrying out uplink, by described transmission channel with the second Packet Generation to described TDB network processing unit;
Described TDB primary processor when carrying out downlink transfer, by described transmission channel with the second Packet Generation to described RRU.
21. system according to claim 15 is characterized in that, the indoor equipment TDB's of described base station is a plurality of to external port, and described RF remote equipment RRU is a plurality of, and described RF remote equipment RRU also comprises:
RRU sets up module, is used for setting up the mapping relations of the IP address of the external port numbers of described TDB and described RRU;
The indoor equipment TDB of described base station also comprises:
TDB sets up module, is used for setting up the mapping relations of the IP address of the external port numbers of described TDB and described RRU;
Described RRU sending module is inquired about described mapping relations, with described the second Packet Generation to the TDB port that satisfies these mapping relations;
Described TDB sending module is inquired about described mapping relations, with described the second Packet Generation to the RRU that satisfies these mapping relations.
CN201210324353.8A 2012-09-04 2012-09-04 A kind of data transmission method and system CN102869045B (en)

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