CN101437004B - IQ data transmission method - Google Patents
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- CN101437004B CN101437004B CN 200710177450 CN200710177450A CN101437004B CN 101437004 B CN101437004 B CN 101437004B CN 200710177450 CN200710177450 CN 200710177450 CN 200710177450 A CN200710177450 A CN 200710177450A CN 101437004 B CN101437004 B CN 101437004B
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Abstract
The invention discloses an IQ data transmission method. The sending end and the receiving end negotiate the positions of IQ data of various downstream devices in a data structure; based on a RapidIO protocol and according to the determined positions of the IQ data in the data structure through the negotiation, the sending end/receiving end carries and sends/obtains the IQ data through the positions in the data structure. Apparently, the IQ data transmission method can effectively reduce the complexity of the system, does not cause the excessive consumption of logic resources, does not relate to the setting of an application strategy during the time-sharing transmission, and can assure the high efficiency and the safety of the transmission of the IQ data.
Description
Technical field
The present invention relates to wireless communication field, be specifically related to a kind of IQ data transmission method.
Background technology
In present applied micro telecommunication computing framework (MicroTCA); Define 2 MicroTCA and carried hub (MicroTCA Carrier Hub; MCH) module; Each MCH module wherein through backboard at most can with 12 advanced interlayer cards (Advanced Mezzanine Card, AMC) module links to each other, concrete connected mode is as shown in Figure 1.For the exchange that on the MCH module, realizes the IQ data, function such as add up, must between MCH module and AMC module, carry out the IQ transfer of data with appropriate mode.
In the definition of the interconnection line of MCH module and AMC module, comprised the high-speed-differential line of 4 pairs of full duplexs that are used to transmit the IQ data; And Serial RapidIO (can abbreviate RapidIO as) agreement is used as the agreement support of IQ transfer of data usually.
In practical application, use the principle of RapidIO protocol transmission IQ data as shown in Figure 2.Among Fig. 2, AMC1 and AMC2 accomplish the Base-Band Processing function of different carrier frequencies and sector (hereinafter to be referred as contained fan).Particularly; The mutual up IQ data of AMC1 and MCH are A1; The mutual descending IQ data of AMC1 and MCH are B1, and the mutual up IQ data of AMC2 and MCH are A2, and the mutual descending IQ data of AMC2 and MCH are B2; Inner IQ processing unit and the mutual up IQ data of RapidIO Switch of MCH are C, and the mutual descending IQ data of this IQ processing unit and RapidIO Switch are D.Usually, in A1, B1, only transmit AMC1 the IQ data of corresponding contained fan, only transmit among A2, the B2 AMC2 the IQ data of corresponding contained fan, what transmit among C, the D is whole IQ data that A1 and A2 are required or send.
Above-mentioned IQ data all are that base unit carries out the timesharing transmission with the packet, and it can be example with the up IQ transfer of data among Fig. 3 that the packet when carrying out the timesharing transmission is formed.Among Fig. 3,, just need to formulate a timesharing transmission policy to avoid obstruction in order the IQ data to be carried out the timesharing transmission; And, the Switching Module to processing such as the IQ data exchange need be set in MCH.The AMC quantity of supporting when system more for a long time; Switching Module among the MCH will have the high system complexity of level (complexity that has or even present technology can't realize); Such complexity will cause consuming excessively of logical resource, and the application strategy setting in the timesharing when transmission difficulty relatively that also can become because of the raising of complexity.
Obviously, can cause too high system complexity to the applied time-division transmission means of IQ data at present, cause the serious consumption of logical resource, and the difficulty relatively that becomes of the application strategy setting when making the timesharing transmission, be unfavorable for efficient, the safe transmission of IQ data.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of IQ data transmission method, reduces system complexity, guarantees the high efficiency and the fail safe of IQ transfer of data.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of IQ data transmission method, this method comprises:
Transmitting terminal and receiving terminal are consulted the position of IQ data in the IQ Frame of AMC; Based on RapidIO agreement and said IQ data the position in IQ Frame definite according to negotiation, transmitting terminal carries and sends the IQ data through this position of said IQ Frame, and/or receiving terminal obtains the IQ data through this position of said IQ Frame;
In said transmitting terminal and the receiving terminal, it is MCH that a side is arranged, and the opposing party is AMC.
Said negotiation method is:
According to being provided with in advance, transmitting terminal writes down the position of IQ data in the IQ Frame, and gives receiving terminal with this position informing, by this position of receiving terminal record; Or receiving terminal writes down the position of IQ data in the IQ Frame, and gives transmitting terminal with this position informing, by this position of transmitting terminal record.
Said transmitting terminal is MCH, and said receiving terminal is AMC; Said method of carrying and sending the IQ data is:
In the IQ Frame that will send, write the IQ data to the pairing IQ data space of each AMC, the IQ Frame that will write the IQ data afterwards sends to each AMC.
The method that said IQ Frame is sent to each AMC is:
Using clean culture or multicast mode sends.
Said transmitting terminal is MCH, and said receiving terminal is AMC; The method of the said IQ of obtaining data is:
In IQ Frame, from self pairing IQ Frame position, extract the IQ data by AMC from MCH.
Said receiving terminal is MCH, and said transmitting terminal is AMC; Said method of carrying and sending the IQ data is:
In will sending to the IQ Frame of MCH, write the IQ data by AMC to self pairing IQ Frame position, and the IQ Frame that will write the IQ data sends to MCH.
Said receiving terminal is MCH, and said transmitting terminal is AMC; The method of the said IQ of obtaining data is:
In IQ Frame, from the pairing IQ Frame of each AMC position, extract the IQ data by MCH from AMC.
Further a plurality of IQ Frames of receiving are carried out Synchronous Processing, and a plurality of IQ Frames of accomplishing Synchronous Processing are added up.
The position of said IQ data in the IQ Frame is: be arranged in the load of said Frame, perhaps be positioned at other position of said Frame.
Further confirm the position of the pairing IQ data of each AMC in said IQ Frame according to pairing carrier frequency of each AMC and sector.
It is thus clear that, IQ data transmission method provided by the present invention, owing to no longer use the time-division transmission means, and transmitting terminal and receiving terminal are all known the position of IQ data in the IQ Frame; Therefore, based on the RapidIO agreement and according to the position of said IQ data in the IQ Frame, transmitting terminal carries and send the IQ data through this position of said IQ Frame, and/or receiving terminal obtains the IQ data through this position of said IQ Frame.Obviously, the IQ data transfer mode of the embodiment of the invention can effectively reduce system complexity, can not cause consuming excessively of logical resource, and the application strategy setting in the time of also can not relating to the timesharing transmission can guarantee the high efficiency and the fail safe of IQ transfer of data.
Description of drawings
Fig. 1 is the principle schematic of annexation between MCH and the AMC of prior art;
Fig. 2 is the IQ transfer of data schematic diagram of prior art;
Packet when Fig. 3 is the up IQ transfer of data of prior art is formed sketch map;
Fig. 4 is the IQ transfer of data flow process sketch of one embodiment of the invention;
Fig. 5 is the position view of IQ data in data structure of one embodiment of the invention;
Fig. 6 is the position view of IQ data in data structure of another embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention's technology is described in detail.
Referring to Fig. 4, Fig. 4 is the IQ transfer of data flow process sketch of one embodiment of the invention, and this flow process may further comprise the steps:
Step 401: transmitting terminal and receiving terminal are consulted the position of IQ data in data structure of receiving terminal.
Particularly, no matter transmitting terminal, receiving terminal are MCH or AMC, and transmitting terminal all needs to hold consultation to data structure in advance with receiving terminal, and this negotiation must be carried out between MCH and AMC.The principle that data structure is consulted is: be provided with the IQ data space of corresponding each AMC in the data structure of between MCH and AMC, transmitting (as: Frame), this IQ data space can be with its location positioning in data structure; And, can give the pairing AMC of these IQ data with the position informing of IQ data in data structure.
The process that realizes above-mentioned data structure negotiation is varied, as: according to being provided with in advance, AMC writes down the position of IQ data in data structure of self, and gives MCH with this position informing, by this position of MCH record.Perhaps, according to being provided with in advance, MCH writes down the position of IQ data in data structure of each AMC, and gives AMC with this position informing, by each this position of AMC record.
Need to prove: the said IQ data space of corresponding each AMC, can be arranged in the load (payload) of said data structure, also can be positioned at other position of said data structure.In addition, the position (can abbreviate each AMC pairing data structure position) of the pairing IQ data of each AMC in said data structure confirmed according to the pairing contained fan of each AMC; Therefore, the position of the pairing IQ data of different AMC in said data structure might be identical also possible different.
Step 402: based on the RapidIO agreement and according to the position of said IQ data in data structure of consulting to confirm; Transmitting terminal carries and sends the IQ data through this position of said data structure; And/or receiving terminal obtains the IQ data through this position of said data structure.
Particularly; As MCH during as transmitting terminal; In the data structure that will send to AMC; Write IQ data (to the AMC that is not ready for sending the IQ data, can write zero to the pairing IQ data space of this AMC) by MCH to the pairing IQ data space of each AMC, the data structure that will write the IQ data afterwards sends to each AMC.
When each AMC sends said data structure, can use clean culture or multicast mode and send.When using the mode of unicast transmission, said data structure is sent to each AMC one by one successively; When the set of applications broadcast mode sends, said data structure is copied into a plurality of, and each data structure after will copying sends to each AMC respectively.
As MCH during, in data structure, from the pairing data structure of each AMC position, extract the IQ data by MCH, and can carry out subsequent treatment the IQ data of extracting from AMC as receiving terminal.
In some cases, the corresponding identical contained fan of different AMC; In this case, MCH can carry out Synchronous Processing to a plurality of data structures of receiving, and a plurality of data structures of accomplishing Synchronous Processing are added up.At this moment, to the pairing identical contained fan of different AMC, MCH just can obtain better signal effect.
As AMC during, in the data structure that will send to MCH, write the IQ data to self pairing data structure position, and the data structure that will write the IQ data sends to MCH by AMC as transmitting terminal.
As AMC during, in data structure, from self pairing data structure position, extract the IQ data by AMC, and can carry out subsequent treatment the IQ data of extracting from MCH as receiving terminal.
Among Fig. 4, the transmission of IQ data normally realizes based on the RapidIO agreement.
Said visible by Fig. 4, owing to no longer use the time-division transmission means, and transmitting terminal and receiving terminal are all known the position of IQ data in data structure; Therefore, based on the RapidIO agreement and according to the position of said IQ data in data structure, transmitting terminal carries and send the IQ data through this position of said data structure, and/or receiving terminal obtains the IQ data through this position of said data structure.Obviously, IQ data transfer mode described in conjunction with Figure 4 can effectively reduce system complexity, can not cause consuming excessively of logical resource, and the application strategy setting in the time of also can not relating to the timesharing transmission can guarantee the high efficiency and the fail safe of IQ transfer of data.
When specifically being provided with, can be provided with the position of IQ data in data structure referring to Fig. 5, Fig. 5 is the position view of IQ data in data structure of one embodiment of the invention.Among Fig. 5, the IQ data of each sub-district are sequence arrangement successively, is arranged in the load of data structure.
When practical application, can with Fig. 5 the setting that similar Fig. 6 is carried out on the basis.Referring to Fig. 6, Fig. 6 is the position view of IQ data in data structure of another embodiment of the present invention.Among Fig. 6, supposing the system is supported 6 sub-districts at most, and each sub-district is supported 2 antennas at most; AMC1 is used for communicating by letter with MCH with AMC2; Wherein, AMC1 only supports 4 sub-districts (numbering 1-4); AMC2 only supports 4 sub-districts (numbering 3-6), relates to the position (other position usable zero replenishes) of the corresponding I11 to Q42 of IQ data of AMC1, relates to the position (other position usable zero replenishes) of the corresponding I31 to Q62 of IQ data of AMC2.
As MCH during as transmitting terminal; In the data structure that will send to AMC1 and AMC2; Write the IQ data (to the AMC that is not ready for sending the IQ data by MCH to the pairing IQ data space of each AMC; Can write zero to the pairing IQ data space of this AMC), the data structure that will write the IQ data afterwards sends to each AMC.
As MCH during, in data structure, from the pairing data structure of each AMC position, extract the IQ data by MCH, and can carry out subsequent treatment the IQ data of extracting from AMC as receiving terminal.
In some cases, the corresponding identical contained fan of different AMC; In this case, MCH can carry out Synchronous Processing to a plurality of data structures of receiving, and a plurality of data structures of accomplishing Synchronous Processing are added up.At this moment, to the pairing identical contained fan of different AMC, MCH just can obtain better signal effect.
As AMC1/AMC2 during, in the data structure that will send to MCH, write the IQ data to self pairing data structure position, and the data structure that will write the IQ data sends to MCH by AMC1/AMC2 as transmitting terminal.
As AMC during, in data structure, extract the IQ data by AMC1 from data structure position I11 to Q42, and can carry out subsequent treatment the IQ data of extracting from MCH as receiving terminal; In data structure, extract the IQ data by AMC2 from data structure position I31 to Q62, and can carry out subsequent treatment the IQ data of extracting from MCH.To AMC1, IQ data that AMC2 did not extract, can give up.
Visible by the above, owing to no longer use the time-division transmission means, and transmitting terminal and receiving terminal are all known the position of IQ data in data structure; Therefore, based on the RapidIO agreement and according to the position of said IQ data in data structure, transmitting terminal carries and send the IQ data through this position of said data structure, and/or receiving terminal obtains the IQ data through this position of said data structure.Obviously, the IQ data transfer mode of the embodiment of the invention can effectively reduce system complexity, can not cause consuming excessively of logical resource, and the application strategy setting in the time of also can not relating to the timesharing transmission can guarantee the high efficiency and the fail safe of IQ transfer of data.
Claims (10)
1. an IQ data transmission method is characterized in that, this method comprises:
Transmitting terminal and receiving terminal are consulted the position of IQ data in the IQ Frame of advanced interlayer card AMC; Based on RapidIO agreement and said IQ data the position in IQ Frame definite according to negotiation, transmitting terminal carries and sends the IQ data through this position of said IQ Frame, and/or receiving terminal obtains the IQ data through this position of said IQ Frame;
In said transmitting terminal and the receiving terminal, it is that micro telecommunication computing framework carries hub MCH that a side is arranged, and the opposing party is AMC.
2. method according to claim 1 is characterized in that, said negotiation method is:
According to being provided with in advance, transmitting terminal writes down the position of IQ data in the IQ Frame, and gives receiving terminal with this position informing, by this position of receiving terminal record; Or receiving terminal writes down the position of IQ data in the IQ Frame, and gives transmitting terminal with this position informing, by this position of transmitting terminal record.
3. method according to claim 1 and 2 is characterized in that said transmitting terminal is MCH, and said receiving terminal is AMC; Said method of carrying and sending the IQ data is:
In the IQ Frame that will send, write the IQ data to the pairing IQ data space of each AMC, the IQ Frame that will write the IQ data afterwards sends to each AMC.
4. method according to claim 3 is characterized in that, the method that said IQ Frame is sent to each AMC is:
Using clean culture or multicast mode sends.
5. method according to claim 1 and 2 is characterized in that said transmitting terminal is MCH, and said receiving terminal is AMC; The method of the said IQ of obtaining data is:
In IQ Frame, from self pairing IQ Frame position, extract the IQ data by AMC from MCH.
6. method according to claim 1 and 2 is characterized in that said receiving terminal is MCH, and said transmitting terminal is AMC; Said method of carrying and sending the IQ data is:
In will sending to the IQ Frame of MCH, write the IQ data by AMC to self pairing IQ Frame position, and the IQ Frame that will write the IQ data sends to MCH.
7. method according to claim 1 and 2 is characterized in that said receiving terminal is MCH, and said transmitting terminal is AMC; The method of the said IQ of obtaining data is:
In IQ Frame, from the pairing IQ Frame of each AMC position, extract the IQ data by MCH from AMC.
8. method according to claim 7 is characterized in that, further a plurality of IQ Frames of receiving is carried out Synchronous Processing, and a plurality of IQ Frames of accomplishing Synchronous Processing are added up.
9. method according to claim 1 is characterized in that, the position of said IQ data in the IQ Frame is: be arranged in the load of said Frame, perhaps be positioned at other position of said Frame.
10. method according to claim 1 is characterized in that, further confirms the position of the pairing IQ data of each AMC in said IQ Frame according to pairing carrier frequency of each AMC and sector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710177450 CN101437004B (en) | 2007-11-15 | 2007-11-15 | IQ data transmission method |
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| CN 200710177450 CN101437004B (en) | 2007-11-15 | 2007-11-15 | IQ data transmission method |
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| CN101437004A CN101437004A (en) | 2009-05-20 |
| CN101437004B true CN101437004B (en) | 2012-12-05 |
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| WO2006015513A1 (en) * | 2004-08-12 | 2006-02-16 | Intel Corporation | Method and system for processing multicast packets |
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| CN101056313A (en) * | 2007-05-30 | 2007-10-17 | 中兴通讯股份有限公司 | An IQ data transmission method between the BBU and RRU |
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2007
- 2007-11-15 CN CN 200710177450 patent/CN101437004B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006015513A1 (en) * | 2004-08-12 | 2006-02-16 | Intel Corporation | Method and system for processing multicast packets |
| WO2006044145A3 (en) * | 2004-10-15 | 2006-09-08 | Motorola Inc | System and method for tunneling standard bus protocol messages through an automotive switch fabric network |
| CN1956564A (en) * | 2005-10-26 | 2007-05-02 | Ut斯达康通讯有限公司 | Multi-protocol signal transmission method based on CPRI in distributed base station system and its device |
| CN1859396A (en) * | 2006-02-06 | 2006-11-08 | 华为技术有限公司 | Method for transmitting multiple system radio service data by general radio interface |
| CN101056313A (en) * | 2007-05-30 | 2007-10-17 | 中兴通讯股份有限公司 | An IQ data transmission method between the BBU and RRU |
Non-Patent Citations (1)
| Title |
|---|
| 陈剑波.RapidIO总线技术的研究.《计算机与网络》.2005,(第09期), * |
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