CN204442370U - Signal processing apparatus - Google Patents
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- CN204442370U CN204442370U CN201520158215.6U CN201520158215U CN204442370U CN 204442370 U CN204442370 U CN 204442370U CN 201520158215 U CN201520158215 U CN 201520158215U CN 204442370 U CN204442370 U CN 204442370U
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Abstract
The utility model discloses a kind of signal processing apparatus.Wherein, signal processing apparatus comprises: Anneta module; Baseband processor, for generating baseband signal by information source information to be sent by Base-Band Processing; Radio frequency transceiver, is connected with baseband processor, is converted into radiofrequency signal for baseband signal baseband processor generated; First switch, is connected with Anneta module, and the first switch is used for the radiofrequency signal selecting to export from multi-channel rf passage; Second switch, is connected with Anneta module, and second switch is the switch designed for the radiofrequency signal of target frequency; Frequency mixer, is connected between radio frequency transceiver and second switch, makes to form a radio-frequency channel between radio frequency transceiver and second switch, and the radiofrequency signal that frequency mixer is used for the generation of radio frequency transceiver carries out the radiofrequency signal that frequency spectrum shift formation has target frequency.By the utility model, solve in prior art to adopt and be different from the high problem of the terminal cost of conventional frequency bands for communication.
Description
Technical field
The utility model relates to the communications field, in particular to a kind of signal processing apparatus.
Background technology
In mobile communication system, terminal (also claiming UE, UT etc.) sends to base station or receives from the wireless signal of base station at a certain frequency band, realizes radio communication.As shown in Figure 1, wherein information source information to be sent is generated the baseband signal supporting communication protocol to the part-structure of terminal by baseband processor by Base-Band Processing, and processes the baseband signal received; The baseband signal received is converted into radiofrequency signal thus realizes frequency spectrum shift (such as baseband signal being moved frequency band near 1800MHz or/2600MHz) by radio frequency transceiver, just wireless signal modulation is communicated to special frequency band, and can by the radiofrequency signal demodulation received generate baseband signal process to baseband processor, reduction information source information thus realize communication.Because 2G, 3G, 4G system that current Communications Market coexists exists various different standard (GSM/TD-SCDMA/TD-LTE), and each operator also has multiple frequency range (such as TDD band support 39, frequency range 40, frequency range 41), between radio frequency transceiver and Anneta module, a main switch is comprised toward contact, select between the multi-channel rf signal that can support at radio frequency transceiver, which (receiving transmitting chain band 40 or transceiving radio frequency link band 40) radio-frequency information what determine to send to Anneta module is.Although in the foregoing description only for end side, base station side also has similar structure, does not repeat them here.
In the prior art, terminal can support the radio communication of which kind of frequency band, depend on the ability of terminal chip (as the baseband processor in Fig. 1 and radio frequency transceiver), therefore for the frequency band that the market demand is huge, corresponding terminal chip is ripe and cheap, terminal chip such as corresponding to the 3G system (adopting WCDMA communication protocol) of 900MHz and 1800MHz near band work is of high quality and at a reasonable price, and the terminal chip corresponding to the 4G system (adopting LTE communication agreement) of 2600MHz near band work is like this equally.And for the less frequency band of the market demand, corresponding terminal chip needs custom-made, so just cause the cost of the terminal used in some dedicated networks higher, production line is not even had to provide similar products, such as in public security, fire-fighting, in the dedicated networks such as colliery, spendable frequency band is different from citizens band (such as near 1400MHz), but current rare terminal chip can be supported on these frequency bands and runs LTE communication agreement, can only to terminal chip manufacturer (such as, QualCom company, Taiwan MediaTek Inc etc.) custom chip, do like this and terminal cost can be caused high on the one hand.
Being different from the high problem of the terminal cost of conventional frequency bands for communication for adopting in prior art, not yet proposing effective solution at present.
Utility model content
Main purpose of the present utility model is to provide a kind of signal processing apparatus, is different from the high problem of the terminal cost of conventional frequency bands for communication to solve in prior art to adopt.
To achieve these goals, according to an aspect of the utility model embodiment, a kind of signal processing apparatus is provided.Comprise according to signal processing apparatus of the present utility model: Anneta module; Baseband processor, for generating baseband signal by information source information to be sent by Base-Band Processing; Radio frequency transceiver, is connected with described baseband processor, is converted into radiofrequency signal for the baseband signal described baseband processor generated; First switch, is connected with described Anneta module, and described first switch and described radio frequency transceiver are provided with multi-channel rf passage, and described first switch is used for the radiofrequency signal selecting to export from described multi-channel rf passage; Second switch, is connected with described Anneta module, and described second switch is the switch designed for the radiofrequency signal of target frequency; And frequency mixer, be connected between described radio frequency transceiver and described second switch, make between described radio frequency transceiver and described second switch, to form a radio-frequency channel, described radio-frequency channel is connected with described Anneta module by described second switch, and described frequency mixer is used for carrying out frequency spectrum shift to the radiofrequency signal that described radio frequency transceiver generates and forms the radiofrequency signal with described target frequency.
Further, described baseband processor is connected with described first switch, and described baseband processor is also for controlling the radiofrequency signal that described first switch is selected to export from described multi-channel rf passage.
Further, described baseband processor is connected with described second switch, and described baseband processor is also for controlling described second switch.
Further, described first switch is connected with described Anneta module by described second switch, and described second switch is also for controlling the connection between described first switch and described Anneta module.
Further, described baseband processor comprises universal input/output interface, described baseband processor is connected with described second switch with described first switch respectively by described universal input/output interface, and described baseband processor is also for by controlling the path that described first switch and described second switch control between described baseband processor and described Anneta module.
Further, described signal processing apparatus also comprises decoding circuit, described universal input/output interface is connected with described second switch with described first switch respectively by described decoding circuit, and the signal that described decoding circuit is used for exporting described baseband processor carries out decoding process or for modifying to the signal of decoding.
Further, described Anneta module comprises: the Anneta module be all connected with described first switch and described second switch.
Further, described Anneta module comprises: two Anneta modules be connected with described second switch one_to_one corresponding with described first switch.
Further, described baseband processor and described radio frequency transceiver are two independently chips, or, described baseband processor and described radio frequency transceiver on a single die integrated.
Further, described multi-channel rf channel interrupt opens a passage, the passage that the radio-frequency channel formed by described frequency mixer is opened for replacing described multi-channel rf channel interrupt.
According to the utility model embodiment, can the transmission of radiofrequency signal of realize target frequency by increasing frequency mixer and second switch in existing signal processing apparatus, without the need to chip factory business custom chip, only need improve a little existing chip and can realize reaching target frequency, solve in prior art to adopt and be different from the high problem of the terminal cost of conventional frequency bands for communication, reach the effect reducing and adopt and be different from the cost of the terminal of conventional frequency bands for communication.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of the signal processing apparatus according to prior art;
Fig. 2 is the schematic diagram of the signal processing apparatus according to the utility model embodiment;
Fig. 3 is the schematic diagram according to a kind of optional signal processing apparatus of the utility model embodiment;
Fig. 4 is the schematic diagram according to the another kind of optional signal processing apparatus of the utility model embodiment;
Fig. 5 is the schematic diagram according to another optional signal processing apparatus of the utility model embodiment.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
The utility model scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
It should be noted that, term " first ", " second " etc. in specification of the present utility model and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged, in the appropriate case so that embodiment of the present utility model described herein.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those components and parts that the system of a series of components and parts, product or equipment are not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other components and parts of these systems, product or equipment.
Before description the utility model embodiment, first introduce technology application product and the terminological interpretation of the utility model embodiment, as shown in table 1.
Table 1 technology application product and terminological interpretation:
The utility model embodiment provides a kind of signal processing apparatus.This signal processing apparatus may be used in communication system.
Fig. 2 is the schematic diagram of the signal processing apparatus according to the utility model embodiment.As shown in Figure 2, this signal processing apparatus comprises: Anneta module 105, baseband processor 101, radio frequency transceiver 102, first switch 103, second switch 104 and frequency mixer 106.
Baseband processor 101 is for generating baseband signal by information source information to be sent by Base-Band Processing.This baseband processor 101 is also for processing the baseband signal received.
Radio frequency transceiver 102 is connected with baseband processor 101, is converted into radiofrequency signal for baseband signal baseband processor 101 generated.This radio frequency transceiver 102 is also for being converted into base band signal transmission to baseband processor 101 by the radiofrequency signal received.
First switch 103 is connected with Anneta module 105, and the first switch 103 is provided with multi-channel rf passage with radio frequency transceiver 102, and the first switch 103 for selecting the radiofrequency signal exported from multi-channel rf passage.This first switch 103 is the main switch in signal processor, and its effect is which radio-frequency information selecting to send to Anneta module 105 between the multi-channel rf signal that can support at radio frequency transceiver 102.It should be noted that, the first switch 103 in the utility model embodiment and the radio-frequency channel between radio frequency transceiver 102 also can be called transceiving radio frequency link.
Second switch 104 is connected with Anneta module 105, and this second switch 104 is the switch designed for the radiofrequency signal of target frequency.Target frequency is the target operating frequency of signal processing apparatus, second switch 104 for carry out performance optimization for this target frequency and the switch that designs, namely second switch 104 can realize more high performance work under target frequency, thus reduces the loss of signal.
Preferably, the first switch 103 is connected with Anneta module 105 by second switch 104, and second switch 104 is also for controlling the connection between the first switch 103 and Anneta module 105.
Frequency mixer 106 is connected between radio frequency transceiver 102 and second switch 104, make between radio frequency transceiver 102 and second switch 104, to form a radio-frequency channel, this radio-frequency channel is connected with Anneta module 105 by second switch 104, and frequency mixer 106 carries out frequency spectrum shift for the radiofrequency signal that radio frequency transceiver 102 generates and forms the radiofrequency signal with target frequency.
The radiofrequency signal that radio frequency transceiver 102 generates by frequency mixer 106 carries out frequency spectrum shift, form the radiofrequency signal with target frequency, and be transferred to Anneta module 105 by second switch 104, due to the switch that second switch is for target frequency design, thus reduce the radiofrequency signal of target frequency is transferred to Anneta module 105 loss by second switch 104 therefore.
It should be noted that, in the utility model embodiment, Anneta module can be one also can be multiple, first switch is connected with Anneta module respectively with second switch, can be that the first switch is connected with same Anneta module with second switch, also can be that the first switch connects an Anneta module, second switch connects second Anneta module.Above-mentioned situation is all used in the utility model embodiment, here not improper restriction.
According to the utility model embodiment, can the transmission of radiofrequency signal of realize target frequency by increasing frequency mixer and second switch in existing signal processing apparatus, without the need to chip factory business custom chip, only need improve a little existing chip and can realize reaching target frequency, solve in prior art to adopt and be different from the high problem of the terminal cost of conventional frequency bands for communication, reach the effect reducing and adopt and be different from the cost of the terminal of conventional frequency bands for communication.
In addition, if when only using frequency mixer and do not adopt second switch, although object frequency spectrums of operation moved can be realized, if but the target operating frequency moved is not in the normal working frequency of original main switch, then can bring larger insertion loss, thus affect transmission, the receptivity of signal, such as, existing chip is operated near the frequency of 2GHz substantially, there is some work in the frequency range of 1GHz, when needing the signal of the frequency using 5GHz, only using frequency mixer to be connected to main switch and can produce very large insertion loss.The utility model embodiment reduces the insertion loss of the signal needed by frequency mixer by the special switch being operated in frequency mixer target operating frequency.Frequency mixer is not connected with main switch (i.e. the first switch), but direct with the new special switch (i.e. second switch) be operated on target frequency is directly connected.Signal that frequency mixer sends, that receive under the above constitution, does not then need by main switch, and can be connected with Anneta module only by proprietary switch.The technique effect that such framework brings avoids radio-frequency receiving-transmitting chain by after main switch, be connected with Anneta module by proprietary switch again, need through twice loss (wherein because main switch designs for its original radio frequency link, so original radio frequency link is less by loss during main switch, and may be larger by the loss of proprietary switch); And be connected by the direct and proprietary switch of radio frequency link of mixer device, only need through a loss.Because the target increasing frequency mixer is mainly to use the radio frequency link that have passed through mixing, therefore, the object improving target radio frequency link performance is reached.
Preferably, multi-channel rf channel interrupt opens a passage, the passage that the radio-frequency channel formed by frequency mixer is opened for replacing multi-channel rf channel interrupt, in the utility model embodiment, the radio-frequency channel formed by frequency mixer replaces can being by by a radio-frequency channel between radio frequency transceiver 102 and the first switch 103, that is to say, cut off a radio-frequency channel between radio frequency transceiver 102 and the first switch 103, the radio-frequency channel formed by frequency mixer is to replace this radio-frequency channel.
In above-mentioned scheme, easily find out, if the first switch 103 have selected the radio-frequency channel (i.e. radio-frequency receiving-transmitting chain) disconnected, and the second switch 104 newly installed have selected the link of main switch, then in fact can cause defining open circuit between Anneta module 105 and baseband processor 101.In order to avoid above-mentioned situation occurs, and realize the perfect cooperative cooperating of two switches, need the work of controller to two switches to control.This controller can be baseband processor, and also can be arrange independent controller, that is to say, control signal can be generated by baseband processor, also can be by independently circuit evolving, in order to control each switch.
Further, the utility model embodiment preferably adopts baseband processor 101 as controller, first switch 103 and second switch 104 are controlled, as shown in Figure 1, baseband processor is connected with the first switch 103, and baseband processor 101 is also for controlling the radiofrequency signal that the first switch is selected to export from multi-channel rf passage.Baseband processor 101 is also connected with second switch 104, and baseband processor is also for controlling second switch 104.
Particularly, (line between baseband processor 101 and the first switch 103 comprises VCTL1 and VCTL2 to be marked with the line of VCTL between baseband processor 101 shown in Fig. 1 and the first switch 103, second switch 104, line between baseband processor 101 and second switch 104 comprises VCTL1-M and VCTL2-M), VCTL represents voltage driven control signal (Voltage ConTroL), and namely baseband processor 101 can by arranging different magnitudes of voltage thus controlling each switch on shown line.
Alternatively, baseband processor 101 can be divided into two kinds, one to support that developer writes software, be connected with the first switch 103 by GPIO mouth (universal input/output, bus control unit, General Purpose Input Output), thus control the baseband chip of the first switch 103; Another is controlled the first switch 103 by integrated control program, and the baseband chip of only MIPI (mobile Industry Processor Interface, the MobileIndustry Processor Interface) signal of outputting standard.
Further, as shown in Figure 3, for the first baseband chip, baseband processor 101 comprises universal input/output interface, baseband processor 101 is connected with second switch 104 with the first switch 103 respectively by universal input/output interface, and baseband processor 101 is also for by controlling the path that the first switch 103 and second switch 104 control between baseband processor 101 and Anneta module 105.
Particularly, in signal processing apparatus, the first switch 103 is all passed through in original all radio-frequency channels, and need the radio-frequency channel of mixing by second switch 104, second switch 104 is also responsible for the connection of the first switch 103 and Anneta module 105, and what second switch 104 needs switched is only the first switch 103 and two, mixing passage.Baseband processor 101 can by writing control program, to be connected respectively the mode carrying out controlling, to control the path of current baseband processor 101 and Anneta module 105 by GPIO mouth and the first switch 103, second switch 104.
Alternatively, as shown in Figure 4, signal processing apparatus also comprises decoding circuit 107, universal input/output interface is connected with second switch 104 with the first switch 103 respectively by decoding circuit, and decoding circuit 107 carries out decoding process for the signal exported baseband processor 101 or for modifying to the signal of decoding.
Particularly, for the second baseband chip in above-mentioned, because its control for switch is determined, and carried by standardized MIPI signal, so do not control by the mode of Direct Programming.For this type of baseband chip, decoding circuit can be increased by the MIPI signal exported it, resolve the content of its MIPI signal, then by parsed signal content is updated, generate the control signal adapting to newly increase the circuit structure of proprietary switch, then recompilate as MIPI signal sends to corresponding switch module.
Alternatively, Anneta module comprises: the Anneta module be all connected with the first switch and second switch.Namely this embodiment is the embodiment in Fig. 2 to Fig. 4 shown in any one, and namely the first switch 103 is connected with same Anneta module with second switch 104.
Alternatively, in another embodiment, Anneta module comprises: two Anneta modules be connected with second switch one_to_one corresponding with the first switch.That is to say, each switch connects an Anneta module, and as shown in Figure 5, the first switch 103 is connected with first day wire module 1051, and second switch 104 is connected with the second Anneta module 1052.
Signal processing apparatus due to the utility model embodiment increases frequency mixer and second switch in original scheme, and the design of original Anneta module is optimized for original operating frequency, not necessarily can ensure the performance under target frequency.If in some cases, still need other radio frequency links using original base band, then because this radio frequency link needs twice loss by the first switch and second switch, performance also can be affected.
In the utility model embodiment, by increasing a new Anneta module being directed to frequency mixer target operating frequency, thus realize the performance optimization of target frequency being launched, receiving.Simultaneously, by proprietary switch (i.e. second switch) is connected with proprietary Anneta module (i.e. the second Anneta module), original main switch (i.e. the first switch) is connected with original Anneta module (i.e. first day wire module), make whole radio frequency links all by means of only for the optimised switching device of its operating frequency, avoid unnecessary insertion loss.
Preferably, baseband processor and radio frequency transceiver are two independently chips, or, baseband processor and radio frequency transceiver on a single die integrated.
In the utility model embodiment, comprise the concrete technology of the communication system described in signal processing apparatus not limit, can for GSM, WCDMA, CDMA2000, TD-SCDMA, WiMax, LTE/LTE-A and follow-up may occur the 5th generation, the 6th generation, N-Generation mobile communication technology, also can be the such close range communication techniques of WiFi, BlueTooth, NFC, Zigbee, described frequency mixer can be applied on terminal or base station, with terminal as an example, same scheme also comprises base station side to the utility model.
In sum, the utility model embodiment can reach following effect:
In the circuit using frequency mixer modification frequency, by increasing proprietary switch, thus improve the signal quality of the radio frequency link by frequency mixer, and effectively ensure that the signal quality of original radio frequency link.
By to the programming of baseband processor control signal or decoding+programming+decoding, effectively realize the control to each switch module.
In addition, newly increasing an Anneta module can as the further optimization of the utility model embodiment, thus improves by the transmission of the radiofrequency signal of frequency mixer and other original radiofrequency signals, the quality of reception.
Subject matter to be solved in the utility model is the problem that insertion loss that the target operating frequency difference of operating frequency and the original main switch moved through frequency mixer is brought more greatly is excessive.Namely signal in original mandate frequency range (frequency range as near 2GHz) is mixed in unauthorized frequency range (frequency range as near 5GHz) by frequency mixer by one of them target use scenes, thus realizes the object reducing running cost.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a signal processing apparatus, is characterized in that, comprising:
Anneta module;
Baseband processor, for generating baseband signal by information source information to be sent by Base-Band Processing;
Radio frequency transceiver, is connected with described baseband processor, is converted into radiofrequency signal for the baseband signal described baseband processor generated;
First switch, is connected with described Anneta module, and described first switch and described radio frequency transceiver are provided with multi-channel rf passage, and described first switch is used for the radiofrequency signal selecting to export from described multi-channel rf passage;
Second switch, is connected with described Anneta module, and described second switch is the switch designed for the radiofrequency signal of target frequency; And
Frequency mixer, be connected between described radio frequency transceiver and described second switch, make between described radio frequency transceiver and described second switch, to form a radio-frequency channel, described radio-frequency channel is connected with described Anneta module by described second switch, and described frequency mixer is used for carrying out frequency spectrum shift to the radiofrequency signal that described radio frequency transceiver generates and forms the radiofrequency signal with described target frequency.
2. signal processing apparatus according to claim 1, is characterized in that, described baseband processor is connected with described first switch, and described baseband processor is also for controlling the radiofrequency signal that described first switch is selected to export from described multi-channel rf passage.
3. signal processing apparatus according to claim 1, is characterized in that, described baseband processor is connected with described second switch, and described baseband processor is also for controlling described second switch.
4. signal processing apparatus according to claim 1, is characterized in that, described first switch is connected with described Anneta module by described second switch, and described second switch is also for controlling the connection between described first switch and described Anneta module.
5. signal processing apparatus according to claim 1, is characterized in that,
Described baseband processor comprises universal input/output interface, described baseband processor is connected with described second switch with described first switch respectively by described universal input/output interface, and described baseband processor is also for by controlling the path that described first switch and described second switch control between described baseband processor and described Anneta module.
6. signal processing apparatus according to claim 5, it is characterized in that, described signal processing apparatus also comprises decoding circuit, described universal input/output interface is connected with described second switch with described first switch respectively by described decoding circuit, and the signal that described decoding circuit is used for exporting described baseband processor carries out decoding process or for modifying to the signal of decoding.
7. signal processing apparatus according to claim 1, is characterized in that,
Described Anneta module comprises: the Anneta module be all connected with described first switch and described second switch.
8. signal processing apparatus according to claim 1, is characterized in that,
Described Anneta module comprises: two Anneta modules be connected with described second switch one_to_one corresponding with described first switch.
9. signal processing apparatus according to claim 1, is characterized in that, described baseband processor and described radio frequency transceiver are two independently chips, or, described baseband processor and described radio frequency transceiver on a single die integrated.
10. signal processing apparatus according to claim 1, is characterized in that, described multi-channel rf channel interrupt opens a passage, the passage that the radio-frequency channel formed by described frequency mixer is opened for replacing described multi-channel rf channel interrupt.
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| CN201520158215.6U CN204442370U (en) | 2015-03-19 | 2015-03-19 | Signal processing apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515603A (en) * | 2015-11-26 | 2016-04-20 | 小米科技有限责任公司 | Wireless communication device, terminal device and wireless communication control method |
| CN106033978A (en) * | 2015-03-19 | 2016-10-19 | 北京佰才邦技术有限公司 | Signal processing method and device |
| WO2022160503A1 (en) * | 2021-01-27 | 2022-08-04 | 三维通信股份有限公司 | Radio-frequency signal transmission method and apparatus |
-
2015
- 2015-03-19 CN CN201520158215.6U patent/CN204442370U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033978A (en) * | 2015-03-19 | 2016-10-19 | 北京佰才邦技术有限公司 | Signal processing method and device |
| CN106033978B (en) * | 2015-03-19 | 2018-12-21 | 北京佰才邦技术有限公司 | Signal processing method and device |
| CN105515603A (en) * | 2015-11-26 | 2016-04-20 | 小米科技有限责任公司 | Wireless communication device, terminal device and wireless communication control method |
| WO2022160503A1 (en) * | 2021-01-27 | 2022-08-04 | 三维通信股份有限公司 | Radio-frequency signal transmission method and apparatus |
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Address after: 100080 9th and 10th floors, building 1, zone 1, No. 81, Beiqing Road, Haidian District, Beijing Patentee after: Beijing baicaibang Technology Co.,Ltd. Address before: 100080 the 10 floor of block B, Ding Hao Electronics Building, 3 Haidian Avenue, Haidian District, Beijing. Patentee before: Beijing Bai Caibang Technology Co.,Ltd. |
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