CN101119152A - Multi-service transmission and device for microwave communication - Google Patents
Multi-service transmission and device for microwave communication Download PDFInfo
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Abstract
The present invention relates to a multi-service transmission method in microwave communication, which comprises a multi-service data sending method and a multi-service data acceptance method. Wherein, the multi-service data sending method comprises the following steps: judging the priority of service type; judging whether the service data reaches the given packaging length, adding the type of service; packaging the service data of relevant type; adding invalid data mark when the service data does not reach the given packaging length; packaging the invalid data and sending the radio frame. The multi-service data acceptance method comprises the following steps: receiving the radio frame, discerning the service type in the radio frame, unpacking the service data according to the identified service type, discerning the invalid data mark in the radio frame and discarding the invalid data.
Description
Technical field
The present invention relates to wireless communication field, refer more particularly to the multi-service transmission in the microwave communication.
Background technology
In the transfer of data of microwave communication, the data sync in order to guarantee to send/receive requires microwave signal to transmit continuously.Transmission/the receiving element that pre-determines data length during usually, with microwave transmission is called radio frames.That is, require radio frames to send continuously/receive.
Yet, in microwave communication, need the type of service of transmission a lot, and the data processing rate of each type of service is also different.
Existing technical scheme is the data format that pre-determines transmission for radio frames, just pre-determines the type of service combination of transmission, and is that the business datum of every kind of type of service is distributed the data space of fixed position and length in radio frames.When there is the business datum of respective length in the type business, just pack relevant position in the radio frames of the business datum of the type; When the business datum of this type of service does not exist or data length when not enough, then pack into invalid data in the relevant position in radio frames.
That is to say, no matter the actual traffic data amount of each type of service, radio frames all according to set form by microwave continuous transmission/reception.
If the business datum of various types of traffic is full, then the channel utilization of microwave communication is than higher; If the data processing rate of a class or a few class type of service commonly used is lower, business datum is not enough, then the relevant position in the radio frames just is filled a large amount of invalid datas, when channel utilization significantly reduced, the type of service that other data processing rate is higher, business datum is sufficient was but because of using the assigned address into its distribution, the data space of length to need to wait for follow-up radio frames.
In addition, along with the progressively development of the communication technology, the continuous enhancing of wireless communication device features, more and more new types of service having occurred needs to handle.
In the existing technical scheme, when needs increase new type of service, can not distribute to the data space of new business type service data in the radio frames.Therefore usually, when sending, must earlier the new business type be mapped to a certain type of service commonly used of having distributed, in the radio frames of then this business datum being packed; When receiving, again the new business type discerned, separate, also shone upon back this new business type from the type of service of its mapping.
This increases a large amount of extra works of treatment to microwave transmission system inevitably, thereby increases the complexity of system, and reduces the stability of system.
For example, for PDH (plesiochronous digital Xu Liang) microwave transport equipment that an overall system capacity is 32 road E1 types of service, mean the data space of having allocated 32 road E1 types of service in its radio frames in advance.When the data processing rate of E1 type of service lower, when reality only needs the data space of 16 road E1 types of service, the data space of remaining 16 road E1 types of service can only be filled invalid data in the radio frames, but can not directly transmit the business datum of other types of service such as E3 type of service or IP operation type, waste channel capacity greatly.
Transmit the business datum of other type of service if desired, then must be earlier this E3 type of service or IP operation type be mapped to the business datum of E1 type of service, utilize the data space of 16 road idle in radio frames E1 types of service to be transmitted again.
Therefore, it is low that existing multi-service transmission exists channel utilization, is unfavorable for that simultaneously system changes type of service flexibly and adjusts the data space of each type of service.
Summary of the invention
Given this, the object of the present invention is to provide a kind of microwave communication multi-service transmission that can utilize channel capacity to greatest extent.
Microwave communication multi-service transmission provided by the invention can change type of service flexibly according to system's practical application needs simultaneously, and adjusts the data space of each type of service.
According to the multi-service transmission in a kind of microwave communication provided by the invention, comprise multi-service data sending method and multi-service data method of reseptance, wherein said multi-service data sending method comprises step: add type of service to radio frames, with the business datum packing and the transmission radio frames of respective type; Described multi-service data method of reseptance comprises step: receive the type of service in radio frames, the identification radio frames and the type of service of business datum by identification unpacked.
The present invention further provides the multi-service transmission in a kind of microwave communication, comprise multi-service data sending method and multi-service data method of reseptance, wherein said multi-service data sending method comprises step: judge whether business datum reaches predefined packing length, add type of service add to radio frames, with the business datum packing of respective type, when not having business datum to reach predefined packing length invalid data be identified to radio frames, with invalid data packing and transmission radio frames; Described multi-service data method of reseptance comprises step: receive type of service in radio frames, the identification radio frames, the type of service of business datum by identification unpacked, discerns the invalid data sign in the radio frames and abandon invalid data.
The present invention also provides the multi-service transmission in a kind of microwave communication, comprise multi-service data sending method and multi-service data method of reseptance, wherein said multi-service data sending method comprises step: judge type of service priority, judge whether business datum reaches predefined packing length, add type of service add to radio frames, with the business datum packing of respective type, when not having business datum to reach predefined packing length invalid data be identified to radio frames, with invalid data packing and transmission radio frames; Described multi-service data method of reseptance comprises step: receive type of service in radio frames, the identification radio frames, the type of service of business datum by identification unpacked, discerns the invalid data sign in the radio frames and abandon invalid data.
By microwave communication multi-service transmission provided by the invention, can be according to the data processing rate of the business datum of various types of traffic, type of service in the flexible combination radio frames changes the data format of radio frames automatically, to reach the channel utilization maximization.
Even needing increases new type of service, good scalability is arranged also.
Description of drawings
Fig. 1 is the data structure schematic diagram according to a kind of radio frames of multi-service transmission of the present invention;
Fig. 2 is a kind of sending ending equipment structural representation according to multi-service transmission of the present invention;
Fig. 3 is a kind of receiving device structural representation according to multi-service transmission of the present invention;
Fig. 4 is the radio frames transmission flow figure according to multi-service transmission of the present invention;
Fig. 5 is the radio frames reception flow chart according to multi-service transmission of the present invention;
Fig. 6 is the data structure schematic diagram according to the another kind of radio frames of multi-service transmission of the present invention;
Fig. 7 is the data structure schematic diagram according to another radio frames of multi-service transmission of the present invention.
Embodiment
Introduce the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the data structure schematic diagram of the employed a kind of radio frames of multi-service transmission in the microwave communication provided by the invention.
The data structure of a kind of radio frames used in the present invention as shown in Figure 1, it is made up of a plurality of cells (CELL), each cell further comprises overhead byte (OVERHEAD) and business datum.Each cell comprises the business datum of identical data length, and the business datum in each cell belongs to same type of service.
Wherein, overhead byte further is made up of verification of source identity, cell sequence number, business datum etc., and overhead byte also comprises the verification of type of service and type of service especially.Described overhead byte not necessarily all is confined to the head of cell, can be dispersed in other position in the cell according to the actual requirements.For example, the verification of business datum is usually located at after the business datum.
Fig. 6 is the data structure schematic diagram of the employed another kind of radio frames of multi-service transmission in the microwave communication provided by the invention.
The data structure of radio frames is made up of overhead byte and a plurality of cell of radio frames as shown in Figure 6, comprises the overhead byte and the business datum of cell in each cell.Each cell comprises the business datum of identical data length, and the business datum in each cell belongs to same type of service.
Wherein, the overhead byte of radio frames further is made up of radio frames sign, Radio Frame Number etc.; The overhead byte of each cell also comprises the verification of type of service and type of service.The overhead byte of described radio frames can be positioned at other position of radio frames; The overhead byte of each cell can be dispersed in other position in the cell.
Fig. 7 is the data structure schematic diagram of employed another radio frames of multi-service transmission in the microwave communication provided by the invention.
The data structure of radio frames is made up of overhead byte and a plurality of cell of radio frames as shown in Figure 7.Each cell comprises the business datum of identical data length, and the business datum in each cell belongs to same type of service.
Wherein, the overhead byte of radio frames further is made up of the type of service of radio frames sign, Radio Frame Number, each cell, also can comprise the verification of the type of service of each cell.The overhead byte of described radio frames also can be positioned at other position of radio frames.
Multi-service transmission also can use other wireless frame data structure in the microwave communication of the present invention, as long as this data structure comprises the type of service of corresponding each business datum.
In the present invention, the type of service of employing comprises: Ethernet service, E1 business, E3 business, monitoring business and other type of service that can transmit in microwave communication.
Fig. 2 is a kind of sending ending equipment structural representation of carrying out multi-service transmission of the present invention.As shown in Figure 2, a kind of sending ending equipment 100 of the present invention's use comprises: the 1st data source the 101, the 2nd data source 102 ..., n data source 10N, cell packing device 150, invalid data generator 170, and wireless framer 190.
At transmitting terminal, multiple business data 101,102 ..., 10N exists simultaneously, and via data source 101,102 ..., 10N generates byte (byte) with the bit (bit) of each business datum.Packing device 150 receive from data source 101,102 ..., 10N business datum, when the business datum of a certain type of service reaches predefined packing length (that is business datum length of each cell), then will add this professional type of service and business datum will be generated a cell (CELL).The data structure of each cell such as Fig. 1, Fig. 6 or shown in Figure 7.
When the business datum of a plurality of types of service reached predefined packing length simultaneously, then packing device 150 was selected the higher class business datum of priority according to the priority of each business datum from each data source, and this business datum is generated a cell.
Invalid data generator 170 constantly produces invalid data, and its data content does not have practical value.When not having business datum to reach predefined packing length, fill the space in the radio frames.
The cell that packing device 150 will comprise business datum is sent to wireless framer 190.If 150 li of packing devices do not have business datum to reach predefined packing length can be packaged into a complete professional cell time, then wireless framer 190 obtains invalid datas from invalid data generator 170 and forms invalid cells.
Fig. 3 is a kind of receiving device structural representation of carrying out multi-service transmission of the present invention.As shown in Figure 3, a kind of receiving device 200 that the present invention uses comprises: wireless deframer 290, and cell de-packetizer 250, and the 1st data source the 201, the 2nd data source 202 ..., n data source 20N.
At receiving terminal, the radio frames that receives from wave point enters wireless deframer 290 and separates frame, from radio frames each cell is separated one by one, sends to 250 li of de-packetizer in order.
De-packetizer 250 is obtained the type of service of each cell in the overhead byte.If invalid cell then abandons the invalid data in this cell; If professional cell, then the overhead byte with this cell removes, with the business datum in the cell according to type of service send to corresponding data source passage 201,202 ..., in the 20N.
Fig. 4 is the radio frames transmission flow figure according to multi-service transmission of the present invention.
In step S100, wireless framer 190 prepares to generate a radio frames, and this moment, cell packing device 150 was tabulated according to priority preset, and data source is adjusted on the pairing data source of the highest type of service of priority.For example, be data source 1 at this moment.
In step S110, whether the business datum in packing device 150 judgment data sources 1 reaches predefined packing length, that is the business datum length of a cell among Fig. 1.
If the business datum of data source 1 has reached the business datum length of a cell, then in step S120, packing device 150 adds data source 1 pairing type of service in the type of service of the overhead byte of the 1st cell among Fig. 1 to.And, in step S130, will pack into the 1st cell from the business datum of data source 1.Execution in step S180 then.
If the business datum in current data source has not reached the business datum length of a cell, then packing device 150 judges whether the current data source is the pairing data source of the minimum type of service of priority list medium priority in step S140.
If not the minimum data source of priority, then in step S150, packing device 150 is adjusted to data source on the pairing data source of type of service of low 1 grade of priority according to the priority preset tabulation.For example, be data source 2 at this moment, up to data source N.
If be the minimum data source of priority, mean that current business datum without any type of service has reached the business datum length of a cell.Then in step S160, packing device 150 adds the invalid data sign in the cell to, and uses the invalid data filler cell from invalid data generator 170.Execution in step S180 then.
In step S180, wireless framer 190 detects the cell that whether reaches predetermined number and enough generates a radio frames.In example shown in Figure 1, a radio frames comprises n cell.If a radio frames has had enough cells, then in step S190, wireless framer 190 is with each radio frames of cell generation and with its transmission.In case of necessity, for example, when adopting Fig. 6 or wireless frame data structure shown in Figure 7, wireless framer 190 will add the overhead byte of radio frames.
Otherwise, return step S100 and generate next cell.
Fig. 5 is the radio frames reception flow chart according to multi-service transmission of the present invention.
In step S200, wireless deframer 290 receives the radio frames that wireless framer 190 is sent, and wherein each cell separated successively, mails to cell de-packetizer 250.
In step S210, cell de-packetizer 250 is adjusted into the 1st cell from wireless deframer 290 with current pending cell.
In step S220, whether de-packetizer 250 these cells of identification have the invalid data sign.If have invalid data sign, then in step S250, de-packetizer 250 abandons invalid data, and execution in step S260.Otherwise, execution in step S230.
In step S230, the type of service in the de-packetizer 250 identification cells.Then, in step S240, the type of service of business datum by identification unpacked, and mail to corresponding data source.Then, execution in step S260.
In step S260, whether the current cell of de-packetizer 250 identifications is cell last in the radio frames, that is the n cell.If not the n cell, then in step S270, de-packetizer 250 is adjusted into following 1 cell from wireless deframer 290 with current cell.
If the current cell of de-packetizer 250 identifications is cell, a n cell last in the radio frames, then in step S290, de-packetizer 250 finishes the reception work of this radio frames.
By microwave communication multi-service transmission provided by the invention, can be according to the data processing rate of the business datum of various types of traffic, type of service in the flexible combination radio frames changes the data format of radio frames automatically, to reach the channel utilization maximization.
According to the present invention, when needs transmitted the business datum of new business type, only needing to adjust priority list increased new type of service.When sending, the business datum of new business type can obtain corresponding data space automatically according to its priority, in the radio frames of then this business datum being packed; When receiving, can directly unpack the business datum that obtains the new business type and be sent in the corresponding data source.
In the present invention, corresponding each data source, further config memory is used for temporal data when step S110 business datum does not reach predetermined cell business datum length.
Simultaneously, among the present invention, when execution in step S120, S130, S160, S170,, also answer waiting step S180, S100 to handle again even if the type of service of higher priority needs to handle.That is packing process should not interrupt.
In addition, in multi-service transmission of the present invention, need carry out data sync at transmitting terminal and receiving terminal.
These technology contents are because same as the prior art and no longer describe in detail.
Though more than elaborated the present invention in conjunction with specific embodiments, described specific embodiment just illustrates, but not is used to limit content of the present invention and scope.
Protection scope of the present invention should be as the criterion with the record of claims.According to accompanying drawing of the present invention and detailed description, conspicuous variations and modifications are also in the spirit and scope of claim of the present invention concerning being familiar with those skilled in the art.
Claims (9)
1. the multi-service transmission in the microwave communication is characterized in that described multi-service transmission comprises multi-service data sending method and multi-service data method of reseptance, wherein
Described multi-service data sending method comprises step:
(a) add type of service to radio frames;
(b) will pack with the business datum of step (a) respective type;
(c) send radio frames;
Described multi-service data method of reseptance comprises step:
(d) receive radio frames;
(e) type of service in the identification radio frames;
(f) with business datum set by step (e) identification type of service unpack.
2. method according to claim 1 is characterized in that, described multi-service data sending method also comprises step:
(g) judge whether business datum reaches predefined packing length.
3. method according to claim 2 is characterized in that, described multi-service data sending method also comprises step:
When step (g) is judged when not having business datum to reach predefined packing length,
(h) add invalid data and be identified to radio frames;
(i) invalid data is packed.
4. according to the arbitrary described method of claim 1～3, it is characterized in that described multi-service data sending method also comprises step:
(j) priority of judgement type of service is according to the sequential processes business datum of priority.
5. according to the arbitrary described method of claim 1～3, it is characterized in that described multi-service data method of reseptance also comprises step:
(k) the invalid data sign in the identification radio frames.
6. method according to claim 5 is characterized in that, described multi-service data method of reseptance also comprises step:
When step (k) identifies the invalid data sign,
(l) abandon invalid data.
7. method according to claim 1 is characterized in that, described type of service comprises: Ethernet service, E1 business, E3 business and monitoring business.
8. the sending ending equipment of a microwave communication, comprise: plurality of data source, cell packing device, invalid data generator and wireless framer, it is characterized in that described cell packing device is used for business datum is generated cell and adds the corresponding business type to radio frames.
9. the receiving device of a microwave communication, comprise: wireless deframer, cell de-packetizer and plurality of data source, it is characterized in that, described cell de-packetizer be used for discerning the type of service of radio frames and according to type of service cell is unpacked after business datum send to corresponding data source.
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| CN101971689A (en) * | 2008-03-13 | 2011-02-09 | 高通股份有限公司 | Methods and apparatus for using multiple connection identifiers based on traffic requirements |
| CN101534171B (en) * | 2009-03-25 | 2011-02-16 | 华为技术有限公司 | System information transmission method, system and device |
| WO2011079687A1 (en) * | 2009-12-31 | 2011-07-07 | 华为技术有限公司 | Microwave access method and multi-service transport apparatus |
| CN102170306A (en) * | 2011-03-29 | 2011-08-31 | 合肥菲特通信技术有限公司 | RS frame structure based channel multiplexing device and method |
| CN102291306A (en) * | 2011-08-17 | 2011-12-21 | 安徽省菲特科技股份有限公司 | Any number of E1 channels and Ethernet bandwidth adjustable information multiplexing method |
| CN103825751A (en) * | 2012-11-16 | 2014-05-28 | 华为技术有限公司 | Service opening method, veneer, network management equipment and service opening system |
| US9084231B2 (en) | 2008-03-13 | 2015-07-14 | Qualcomm Incorporated | Methods and apparatus for acquiring and using multiple connection identifiers |
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| CA2309472A1 (en) * | 2000-05-25 | 2001-11-25 | Mark James Frazer | Data communication channel |
| CN100542127C (en) * | 2004-06-30 | 2009-09-16 | 华为技术有限公司 | A kind of method of realizing group broadcasting based on multiservice transport platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101971689A (en) * | 2008-03-13 | 2011-02-09 | 高通股份有限公司 | Methods and apparatus for using multiple connection identifiers based on traffic requirements |
| US8526442B2 (en) | 2008-03-13 | 2013-09-03 | Qualcomm Incorporated | Methods and apparatus for using multiple connection identifiers based on traffic requirements |
| CN101971689B (en) * | 2008-03-13 | 2015-04-01 | 高通股份有限公司 | Methods and apparatus for using multiple connection identifiers based on traffic requirements |
| US9084231B2 (en) | 2008-03-13 | 2015-07-14 | Qualcomm Incorporated | Methods and apparatus for acquiring and using multiple connection identifiers |
| CN101534171B (en) * | 2009-03-25 | 2011-02-16 | 华为技术有限公司 | System information transmission method, system and device |
| WO2011079687A1 (en) * | 2009-12-31 | 2011-07-07 | 华为技术有限公司 | Microwave access method and multi-service transport apparatus |
| CN102170306A (en) * | 2011-03-29 | 2011-08-31 | 合肥菲特通信技术有限公司 | RS frame structure based channel multiplexing device and method |
| CN102170306B (en) * | 2011-03-29 | 2014-06-11 | 合肥菲特微电子技术有限公司 | RS frame structure based channel multiplexing device and method |
| CN102291306A (en) * | 2011-08-17 | 2011-12-21 | 安徽省菲特科技股份有限公司 | Any number of E1 channels and Ethernet bandwidth adjustable information multiplexing method |
| CN102291306B (en) * | 2011-08-17 | 2014-06-11 | 安徽省菲特科技股份有限公司 | Any number of E1 channels and Ethernet bandwidth adjustable information multiplexing method |
| CN103825751A (en) * | 2012-11-16 | 2014-05-28 | 华为技术有限公司 | Service opening method, veneer, network management equipment and service opening system |
| CN107993462A (en) * | 2017-12-28 | 2018-05-04 | 佛山市简为科技有限公司 | A kind of traffic wisdom label based on microwave transmission |
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