CN102065395A - Method and device for transmitting open base station architecture initiative reference point 3 messages - Google Patents
Method and device for transmitting open base station architecture initiative reference point 3 messages Download PDFInfo
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- CN102065395A CN102065395A CN2009102214998A CN200910221499A CN102065395A CN 102065395 A CN102065395 A CN 102065395A CN 2009102214998 A CN2009102214998 A CN 2009102214998A CN 200910221499 A CN200910221499 A CN 200910221499A CN 102065395 A CN102065395 A CN 102065395A
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Abstract
The invention discloses a method and a device for transmitting an open base station architecture initiative reference point 3 (OBSAI RP3) messages. The method comprises the following steps of: splicing two OBSAI RP3 messages; and sequentially transmitting the two spliced OBSAI RP3 messages in a way of taking each word as a unit. In the method and the device, the OBSAI RP3 messages can be simply and conveniently transmitted.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of Open Base Station Architecture reference point 3 message-sending method and device.
Background technology
The interface of distributed base station base band and radio frequency mainly adopts two kinds of open interface standards: CPRI interface (Common Public Radio Interface) standard and OBSAI interface (Open Base Station Architecture Initiative) standard.The main feature of distributed base station technology is that the base station is divided into the near-end machine is that Base Band Unit (BBU) and remote termination are radio frequency unit (RRU) two parts, connects by optical fiber between the two, and its interface is based on open C PRI interface or OBSAI interface.
The internal interface of OBSAI comprises RP1, RP2, RP3, RP3-01 and RP4, and the major function of each interface is as follows:
The RP2 interface: the RP2 interface is realized by the 1Gbit Ethernet.RP2 is used for transmitting user data package between transmission unit and Base Band Unit.
RP3 interface: RP3 is used for the air interface transmission data between Base Band Unit and radio frequency unit, does not support the remote radio frequency module, and its linear frequency is the integral multiple of 768Mbps.
RP3-01 interface: OBSAI organizes the RP3-01 interface support remote radio frequency module of complementary definition afterwards, can pass through RP3 protocol transmission user data, also can be by the mapping transmission of control signals of RP1-RP3.
RP4 interface: RP4 defines the connection between electric connecting relation between each module and they and the power supply.
In these OBSAI interfaces, the RP3 interface is used to connect Base Band Unit and radio frequency unit.
Open Base Station Architecture reference point 3 message (Open Base Station ArchitectureInitiative, abbreviate OBSAI RP3 as) carry out high-speed communication and have speed height (up to 1.966Gbps) and simple advantages such as (only needing 1 pair of differential link), therefore also relatively be fit to the high-speed communication scene between the device in the veneer.
In correlation technique, for making the maximization of OBSAI RP3 serial data bus message transmission rate, adopt its 4x rate mode usually, if the byte clock frequency is 307.2MHz, this moment, the link data transmission rate was 768Mbps*4=3.072Gbps.(the link data transmission rate is calculated, because passed through the 8bit/10bit coding, so the link data transmission rate is: 307.2*1016*8*10/8=3.072Gbps).For difficulty that reduces realization and the power consumption that reduces system, can adopt two byte interface width patterns, thereby the clock frequency of system can be reduced to 153.6MHz.When system clock frequency is reduced to 153.6MHz, be subjected to the influence of OBSAI RP3 message 19byte length, the difficulty that makes design realize is embodied on OBSAI RP3 message encapsulation and the parse operation.
Encapsulation and the relatively more difficult problem of parsing at OBSAI RP3 in the correlation technique do not propose effective solution at present as yet.
Summary of the invention
At the encapsulation of OBSAI RP3 in the correlation technique with resolve the problem of difficulty relatively and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of Open Base Station Architecture reference point 3 message-sending method and device, one of to address the above problem at least.
To achieve these goals, according to an aspect of the present invention, a kind of Open Base Station Architecture reference point 3 message-sending method are provided.
Open Base Station Architecture reference point 3 message-sending method according to the present invention comprise: two Open Base Station Architecture reference point 3 message are spliced; With spliced two Open Base Station Architecture reference point 3 message is that unit sends successively with the word.
Preferably, spliced two Open Base Station Architecture reference point 3 message being torn open with the word is that method also comprised before unit sent successively: each Open Base Station Architecture reference point 3 message are produced predetermined message header.
Preferably, with spliced two Open Base Station Architecture reference point 3 message is that unit sends successively and comprises with the word: from message header, with spliced two Open Base Station Architecture reference point 3 message is that unit sends successively with the word, wherein, message header comprises address field, type field and timestamp.
Preferably, each Open Base Station Architecture reference point 3 message being produced predetermined message header comprises: in the default time each Open Base Station Architecture reference point 3 message are produced predetermined message header.
Preferably, before two Open Base Station Architecture reference point 3 message were spliced, method also comprised: the payload in the word is carried out buffer memory; Two Open Base Station Architecture reference point 3 message are spliced comprise: the payload to buffer memory is spliced.
Preferably, be that method also comprised after unit sent successively with the word with spliced two Open Base Station Architecture reference point 3 message: classify to obtain two independently Open Base Station Architecture reference point 3 message to the word parsing and to word.
Preferably, word is resolved and word classified comprise: the word that comprises identical scheduled transmission sign in word carries out amalgamation.
Preferably, be after unit sends successively with the word with spliced two Open Base Station Architecture reference point 3 message; Method also comprises: the recipient counts each word, and the recipient classifies to word according to the result of counting.
To achieve these goals, according to a further aspect in the invention, provide a kind of dispensing device of Open Base Station Architecture reference point 3 message.
A kind of dispensing device of Open Base Station Architecture reference point 3 message according to the present invention comprises: concatenation module is used for two Open Base Station Architecture reference point 3 message are spliced; Sending module, being used for spliced two Open Base Station Architecture reference point 3 message is that unit sends successively with the word.
Preferably, cache module is used for the payload of described word is carried out buffer memory.
By the present invention, adopt two Open Base Station Architecture reference point 3 message are spliced; With spliced two Open Base Station Architecture reference point 3 message is that unit sends successively with the word, solve OBSAI RP3 message encapsulation and the relatively more difficult problem of parsing in the correlation technique, and then reached the effect that can send OBSAI RP3 message simply, easily.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the OBSAI RP3 message structure schematic diagram according to correlation technique;
Fig. 2 is the flow chart according to Open Base Station Architecture reference point 3 message-sending method of the embodiment of the invention;
Fig. 3 is the OBSAI RP3 message amalgamation position view according to the embodiment of the invention;
Fig. 4 is the structural representation of transmitting system of Open Base Station Architecture reference point 3 message of the embodiment of the invention;
Fig. 5 is the Open Base Station Architecture reference point 3 message packaging system structural representations of the embodiment of the invention;
Fig. 6 is the Open Base Station Architecture reference point 3 message parse apparatus structure schematic diagrames of the embodiment of the invention;
Fig. 7 is the Open Base Station Architecture reference point 3 message encapsulation/parsing control state machine structural representations of the embodiment of the invention;
Fig. 8 is the schematic diagram of dispensing device of Open Base Station Architecture reference point 3 message of the embodiment of the invention.
Embodiment
Consider the encapsulation of OBSAI RP3 in the present correlation technique and resolve the relatively problem of difficulty, the embodiment of the invention provides a kind of Open Base Station Architecture reference point 3 message-sending method and device, and this invention comprises: two Open Base Station Architecture reference point 3 message are spliced; With spliced two Open Base Station Architecture reference point 3 message is that unit sends successively with the word.
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Below in conjunction with accompanying drawing OBSAI RP3 message encapsulation of the present invention and analytic method are described.
Method embodiment
According to embodiments of the invention, a kind of Open Base Station Architecture reference point 3 message-sending method are provided.
Fig. 2 is the OBSAI RP3 message structure schematic diagram according to correlation technique.
As shown in Figure 2, this method comprises that following step S202 is to step S204:
Step S202 splices two Open Base Station Architecture reference point 3 message;
Step S204 is that unit sends successively with the word with spliced two Open Base Station Architecture reference point 3 message.
Fig. 3 is the OBSAI RP3 message amalgamation position view according to the embodiment of the invention.
As shown in Figure 3, two OBSAI RP3 message are carried out amalgamation, wherein, two OBSAI RP3 message respectively comprise 9 half-words, i.e. 18 bytes, and two OBSAI RP3 message comprise 18 words altogether, i.e. 36 bytes.
In the present invention, transmitting terminal encapsulation of data frame and receiving terminal resolution data frame can all adopt the counter of 16bit data number, and wherein, the purposes of this counter is:
(1) according to the message header data slot in its count value judgement message.
(2) according to the Payload data slot in its count value judgement message.
(3) judge in data chainning border between two message according to its count value.
Can judge in the 16bit at two message boundaries places data whether be the combination of first Byte of last Byte of message 1 and message 2 according to its count value, so just can clearly distinguish the message header and the load of message 1 and message 2.
The counter of this 16bit data number totally 19 count values (the 38Byte data constitute two message) is 0～8 as if this rolling counters forward value, and the ordering sequence number of then current message in message groups is odd number; If this rolling counters forward value is 10～18.The ordering sequence number of then current message in message groups is even number.Odd number message and even number message are 9 o'clock boundaries in 16bit data number rolling counters forward value, and last byte Payload of odd number message and first byte message head of even number message are formed the 16bit data of this time slot.Reset to the combining form that there are not two message byte data in 0 message boundaries time slot in 16bit data number rolling counters forward value from 18.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
The object of the present invention is to provide a kind of simple, the OBSAI RP3 message encapsulation and analytic method and the device thereof that are easy to realize.
Preferably, the present invention can be by the following technical solutions, and OBSAI RP3 message encapsulation of the present invention and resolver comprise:
The state machine control module, the state machine control that it finishes message encapsulation and parse operation realizes different controlled function; The message header generation module, it is finished in the message encapsulation operation, the interpolation of message header operation; The load cache module, it finishes the caching that receives load, realizes striding the message encapsulation of word; Send control module, predefine transmission interface agreement is finished in the transmit operation of its control efficient message; The Word composite module, it finishes the combination of message header and message load, is the output RP3 of unit message with word; The Word cache module, the word that its buffer memory receives is used for realizing striding the word data processing; The load die section, the load output that it finishes message realizes striding the load amalgamation operation of word; The message header parsing module, it is finished in the message parse operation, the parse operation of message header; Receive control module, predefine receiving interface agreement is finished in the reception operation of its control efficient message.
Fig. 4 is the structural representation of transmitting system of Open Base Station Architecture reference point 3 message of the embodiment of the invention.
As shown in Figure 4, application module produces and receives the payload in the RP3 message, finishes application operating; OBSAI RP3 message packaging system is finished the RP3 message encapsulation operation of application module transmission payload form data, and is transferred to OBSAI RP3 module; The OBSAIRP3 module is finished the transmission of RP3 message and is received operation, physical layer and data link layer functions in the OBSAIRP3 agreement of its realization standard; OBSAI RP3 message parse device receives the RP3 message that OBSAI RP3 module is sent, and finishes the parsing of message, and the payload form data that transmit after resolving are given application module.
Preferably, utilize the processing method of OBSAI RP3 message encapsulation of the present invention and resolver may further comprise the steps:
Preferably, Open Base Station Architecture reference point 3 message-sending method of the present invention can comprise the step of encapsulation RP3 message and resolve the RP3 messages step.
Preferably, the step of encapsulation RP3 message can be as follows:
Steps A, starting state machine control module produce the control signal that other module needs;
Step B, basis transmit control signal, and enable the transmission control module;
Step C, message header generation module produce predefined message header;
Step D, load cache module are data cached according to the control of state machine, and output is adjusted the back data and given the word composite module;
Step e, word composite module are according to state machine control output RP3 message;
Preferably, the step of parsing RP3 message can be as follows:
Step F, initiate mode machine control module produce the control signal that other each module needs;
The data that step G, word cache module buffer memory receive are so that stride the load amalgamation of RP3 message word;
Step H, parsing message header if comprise predefined effective information transmission sign, are enabled the reception control module;
Step I, state machine control module produce the control signal that the load die section uses;
Step J, load die section dateout are given application module.
Compared with prior art, still do not have Chinese patent and foreign patent at present and be devoted to solve OBSAI RP3 message encapsulation and parsing problem, utilize the present invention, can methodization OBSAI RP3 message encapsulation and resolving, make that message encapsulation and parse operation are easy to realize in that FPGA is inner.
In addition, the present invention has designed extendible message encapsulation and has resolved control module.By this module is carried out corresponding modification, can communicate with other OBSAI RP3 protocol interface device, for example Faraday DSP device.Use OBSAI RP3 link transmission different types of data, and finish corresponding parse operation in the opposite end and also can finish by modification to this module.
As shown in Figure 4, message packaging system of the present invention and message parse device present position in whole system.Application module 301, handle the load among the OBSAI RP3, its content that will transmit sends to message packaging system 302 with two byte bit width modes, and the load that 303 pairs of byte bit width modes of message resolver send is handled, and finishes the corresponding operating of application layer.
Message parse device 303, the parse operation that it finishes OBSAI RP3 message comprises the judgement of message header and the extraction operation of load etc.In actual applications, need carry out corresponding modification to this device according to the concrete condition of communication counterpart.Message parse device 303 is finished load and is extracted operation, and the load after the extraction sends to application layer with 16bit (two byte) bit width mode.Use the validity of another one holding wire sign interface data in addition, this signal is produced by the message parse device 303 inner control modules that receive.The same with transmitting terminal, the amalgamation operation of message is finished in message parse device 303 inside.
Fig. 5 is the Open Base Station Architecture reference point 3 message packaging system structural representations of the embodiment of the invention.
As shown in Figure 5, RP3 message packaging system of the present invention comprises:
Send control module 401, be used for transmitting effective RP3 message according to predefined Handshake Protocol.Send the control that control module 401 is subjected to state machine control module 402, and finish control load cache module 404 and message header generation module 403 according to predefined Handshake Protocol.Send control module 401, it finishes load amalgamation control, can stride two clocks and transmit to guarantee the next data of interface transmission.Send control module 401, also finish the filling control in each territory in the message header.
State machine control module 402, it finishes the State Control of the word position of current processing messages, and other module in the message packaging system is subjected to the control of this state machine.Detailed content about the state machine control module is seen below literary composition.
Message header generation module 403, the generation operation that it finishes the RP3 message header comprises address field, type field and timestamp in the message header.This module is sent the control of control module 401 and state machine control module 402, finishes when to produce message header and produce which kind of message header.
Fig. 6 is the Open Base Station Architecture reference point 3 message parse apparatus structure schematic diagrames of the embodiment of the invention.
As shown in Figure 6, RP3 message parse device of the present invention comprises:
Receive control module 501, it is finished predefined Handshake Protocol and realizes, the reception operation of control efficient message.This module is subjected to the control of state machine control module 502 and message header parsing module 503, judges the transmission of efficient message on the link, and control load die section 504 is exported the load information that extracts from receive message.
State machine control module 502, it finishes the State Control of the word position of current processing messages, and other module in the message parse device is subjected to the control of this module.The detailed introduction of state machine control module 502 sees below.
Message header parsing module 503, the parse operation that it finishes message header comprises the extraction of handshaking information, the parsing of address, the parsing of type and the parsing of timestamp etc.When this module is used in reality, can make amendment according to the Handshake Protocol of actual definition.This module is subjected to the control of state machine control module 502.
Load die section 504, it finishes classification, the amalgamation output of load.Herein, classification refers to resolve content according to message header parsing module 503, and by receiving control module 501 controls, finishes the classification output of the several data of transmitting on the link.
Fig. 7 is the Open Base Station Architecture reference point 3 message encapsulation/parsing control state machine structural representations of the embodiment of the invention.
As shown in Figure 7, the state machine in the state machine control module of the present invention comprises following state:
Idle (IDLE) state, state machine is in this state during system reset, occurs up to the new information pulse.
Word (Word) 0-word9 state is represented 10 word positions of message, as shown in Figure 6.Message is owing to original position difference, the word number difference that comprises.When message is initial from high byte, comprise 9 word, when when initial, comprising 10 word from low byte.In different word positions, state machine control module 502 produces different control signals, for example relevant control information that produces the processing messages head at word0 and word1, other word state processing load information.
State machine shown in Figure 7 as can be seen, the no jump condition of state machine itself makes state machine get back to the word0 state from word8 or word9, to restart the word Position Control of next message.Its reason is, the condition that control state machine enters into the word0 state is the new information pulse, this pulse is produced by OBSAI RP3 module, and therefore the cyclic pulse signal for this inside modules counting module produces can periodically enter into the word0 state by the Guarantee Status machine.
Is example with new information from high byte POS INT, and preferably, the message encapsulation process of state machine control can be as follows:
The encapsulation process of the new information of low Byte POS INT, and the resolving of message is all similar with said process, this paper repeats no more.
Preferably, the treatment step of RP3 message packaging system of the present invention can be as follows:
The treatment step of RP3 message parse device of the present invention is the inverse process of message encapsulation process, and this paper repeats no more.
As can be seen from the above description, the present invention can send OBSAI RP3 message simply, easily, and by being that unit sends with the word, can arrive the purpose that sends OBSAI RP3 message quickly.
Device embodiment
According to embodiments of the invention, provide a kind of dispensing device of Open Base Station Architecture reference point 3 message.
Fig. 8 is the schematic diagram of dispensing device of Open Base Station Architecture reference point 3 message of the embodiment of the invention.
As shown in Figure 8, this device comprises: concatenation module 801 and sending module 803 preferably, also comprise cache module 805.
Wherein, concatenation module 801 is used for two Open Base Station Architecture reference point 3 message are spliced; It is that unit sends successively with the word that sending module 803 is used for spliced described two Open Base Station Architecture reference point 3 message.
Cache module 805 is used for the payload of described word is carried out buffer memory.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. Open Base Station Architecture reference point 3 message-sending method is characterized in that, comprising:
Two Open Base Station Architecture reference point 3 message are spliced;
With spliced described two Open Base Station Architecture reference point 3 message is that unit sends successively with the word.
2. method according to claim 1 is characterized in that, it is that described method also comprised before unit sent successively that spliced described two Open Base Station Architecture reference point 3 message are torn open with the word:
Each Open Base Station Architecture reference point 3 message are produced predetermined message header.
3. method according to claim 2 is characterized in that, is that unit sends successively and comprises with the word with spliced described two Open Base Station Architecture reference point 3 message:
From described message header, be that unit sends successively with the word with spliced described two Open Base Station Architecture reference point 3 message, wherein, described message header comprises address field, type field and timestamp.
4. method according to claim 2 is characterized in that, each Open Base Station Architecture reference point 3 message is produced predetermined message header comprise:
In the default time each Open Base Station Architecture reference point 3 message are produced predetermined message header.
5. method according to claim 1 is characterized in that,
Before two Open Base Station Architecture reference point 3 message were spliced, described method also comprised:
Payload in the described word is carried out buffer memory;
Two Open Base Station Architecture reference point 3 message are spliced comprise:
Described payload to buffer memory is spliced.
6. according to each described method in the claim 1 to 3, it is characterized in that, is being that described method also comprised after unit sent successively with the word with spliced described two Open Base Station Architecture reference point 3 message:
Classify to obtain two independently Open Base Station Architecture reference point 3 message to described word parsing and to described word.
7. method according to claim 6 is characterized in that, classifying to described word parsing and to described word comprises:
The word that comprises identical scheduled transmission sign in described word carries out amalgamation.
8. method according to claim 6 is characterized in that,
Be that described method also comprised after unit sent successively with the word with spliced described two Open Base Station Architecture reference point 3 message:
The recipient counts each word;
Described recipient classifies to described word according to the result of described counting.
9. the dispensing device of Open Base Station Architecture reference point 3 message is characterized in that, comprising:
Concatenation module is used for two Open Base Station Architecture reference point 3 message are spliced;
Sending module, being used for spliced described two Open Base Station Architecture reference point 3 message is that unit sends successively with the word.
10. device according to claim 9 is characterized in that, described device also comprises:
Cache module is used for the payload of described word is carried out buffer memory.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681335A (en) * | 2016-03-02 | 2016-06-15 | 臧利 | Data processing method and system for base station |
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| US20090181663A1 (en) * | 2008-01-11 | 2009-07-16 | Chunhua Hu | Transmission of Data Bursts on a Constant Data Rate Channel |
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| CN101431507A (en) * | 2007-11-05 | 2009-05-13 | 中兴通讯股份有限公司 | Signaling transmission method for OBSAI RP3 interface |
| US20090181663A1 (en) * | 2008-01-11 | 2009-07-16 | Chunhua Hu | Transmission of Data Bursts on a Constant Data Rate Channel |
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| OPEN BASE STAION ARCHITECTURE INITIATIVE: "《OBSAI Reference Point 3 Specification version 3.1》", 31 December 2006 * |
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| CN105681335A (en) * | 2016-03-02 | 2016-06-15 | 臧利 | Data processing method and system for base station |
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Application publication date: 20110518 |