CN109004949A - A kind of LTE communication circuit and LTE communication terminal - Google Patents
A kind of LTE communication circuit and LTE communication terminal Download PDFInfo
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- CN109004949A CN109004949A CN201811293609.7A CN201811293609A CN109004949A CN 109004949 A CN109004949 A CN 109004949A CN 201811293609 A CN201811293609 A CN 201811293609A CN 109004949 A CN109004949 A CN 109004949A
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- band signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Abstract
The application is suitable for field of communication technology, provides a kind of LTE communication circuit and LTE communication terminal, wherein LTE communication circuit includes the first transceiver, DRX filter and diversity switch, and first transceiver includes DRX module；The signal output end of the external diversity antenna of signal input part of the diversity switch, the diversity switch connects the signal input part of the DRX filter, and the signal output end of the DRX filter connects the signal input part of the DRX module.The embodiment of the present application is by switching the receives link formed by the first transceiver, DRX filter and diversity, the diversity reception for realizing the second frequency band signals to the first frequency band signals and in the frequency range of the first frequency band signals can effectively improve the hardware compatibility degree of signal receives link, reduce cost and simplifies link structure.
Description
Technical field
The application belongs to field of communication technology more particularly to a kind of LTE (Long Term Evolution, long term evolution)
Telecommunication circuit and LTE communication terminal.
Background technique
With the continuous development of the communication technology, the various terminal devices for having communication function emerge one after another, in order to people's
Communication exchanges in daily production and life bring great convenience.
Currently, the hardware compatibility degree of LTE communication terminal's signal reception link is lower and high expensive.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of LTE communication circuit and LTE communication terminal, to solve LTE communication
The problem of hardware compatibility degree of terminal's signal reception link is lower and high expensive.
The first aspect of the embodiment of the present application provides a kind of LTE communication circuit comprising the first transceiver, DRX filtering
Device and diversity switch, first transceiver includes DRX module；
The external diversity antenna of signal input part of the diversity switch, the signal output end of the diversity switch connect described
The signal input part of DRX filter, the signal output end of the DRX filter connect the signal input part of the DRX module；
Received first frequency band signals of the diversity antenna and/or the second frequency band signals are transmitted to institute through diversity switch
DRX filter is stated, the DRX filter is filtered first frequency band signals and/or second frequency band signals rear defeated
Out to first transceiver；
Wherein, the frequency range of second frequency band signals is located in the frequency range of the first frequency band signals.
In one embodiment, first frequency band signals are the DRX for the B41 that frequency range is 2496MHz~2690MHz
Frequency band signals, second frequency band signals are the DRX frequency band signals for the B7 that frequency range is 2620MHz~2690MHz.
In one embodiment, first transceiver further includes connect with the signal output end of the DRX module
One modem.
In one embodiment, the DRX filter is the SAW filter that nominal frequency is 190MHZ.
In one embodiment, the LTE communication circuit further includes the second transceiver, PRX filter, DUP filter
With TXM module, second transceiver includes PRX module；
First signal output end of the signal input part external antenna of the TXM module, the TXM module meets the PRX
The signal input part of filter, the second signal output of the TXM module terminate the signal input part of the DUP filter, institute
The signal output end for stating PRX filter connects the first signal input part of the PRX module, the signal output of the DUP filter
Terminate the second signal input terminal of the PRX module；
The first sub-band signals in the received third frequency band signals of antenna are through the TXM module transfer to described
PRX filter, the PRX filter export after being filtered to first sub-band signals to second transceiver；
Described in the second sub-band signals and/or the 4th frequency band signals warp in the received third frequency band signals of antenna
TXM module transfer is to the DUP filter, and the DUP filter is to second sub-band signals and/or the 4th frequency range
Signal exports after being filtered to second transceiver；
Wherein, the frequency range of second sub-band signals is located in the frequency range of the 4th frequency band signals.
In one embodiment, the third frequency band signals are the PRX for the B41 that frequency range is 2496MHz~2690MHz
Frequency band signals, the 4th frequency band signals are the PRX frequency band signals for the B7 that frequency range is 2620MHz~2690MHz.
In one embodiment, the frequency range of first sub-band signals is 2496MHz~2620MHz, described the
The frequency range of two sub-band signals is 2620MHz~2690MHz.
In one embodiment, second transceiver further includes connect with the signal output end of the PRX module
Two modems.
In one embodiment, the PRX filter and the DUP filter are SAW filter.
The second aspect of the embodiment of the present application provides a kind of LTE communication terminal comprising above-mentioned LTE communication circuit.
The embodiment of the present application is by providing a kind of LTE communication electricity including the first transceiver, DRX filter and diversity switch
It is realized by switching the receives link formed by the first transceiver, DRX filter and diversity to the first frequency band signals on road
And the diversity reception of the second frequency band signals in the frequency range of the first frequency band signals, it can effectively improve signal reception
The hardware compatibility degree of link reduces cost and simplifies link structure；
It includes the second transceiver, PRX filter, DUP filter and TXM module that the embodiment of the present application, which is also provided by a kind of,
LTE communication circuit realized to the by a receives link being made of the second transceiver, PRX filter and TXM module
The reception of the first sub-band signals in three frequency band signals；Pass through what is be made of the second transceiver, DUP filter and TXM module
Another receives link realizes the main collection reception to the second sub-band signals and the 4th frequency band signals in third frequency band signals,
It can effectively improve the hardware compatibility degree of signal receives link and reduce the cost of PRX filter.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 and Fig. 2 is the structural schematic diagram for the LTE communication circuit that the embodiment of the present application one provides；
Fig. 3 and Fig. 4 is the structural schematic diagram for the LTE communication circuit that the embodiment of the present application two provides；
Fig. 5 and Fig. 6 is the structural schematic diagram for the LTE communication circuit that the embodiment of the present application three provides.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application are explicitly described, it is clear that described embodiment is the application one
The embodiment divided, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present application.
The description and claims of this application and term " includes " and their any deformations in above-mentioned attached drawing, meaning
Figure, which is to cover, non-exclusive includes.Such as process, method or system comprising a series of steps or units, product or equipment do not have
It is defined in listed step or unit, but optionally further comprising the step of not listing or unit, or optionally also wrap
Include the other step or units intrinsic for these process, methods, product or equipment.In addition, term " first ", " second " and
" third " etc. is for distinguishing different objects, not for description particular order.
Embodiment one
The present embodiment provides a kind of LTE communication circuits, are applied to mobile phone, tablet computer, Intelligent bracelet, personal digital assistant
Etc. LTE communications terminal.
As shown in Figure 1, LTE communication circuit 1 provided by the present embodiment, including the first transceiver (Tranceiver) 11,
DRX (Discontinuous Reception, discontinuous reception；Alternatively, diversity reception) filter 12 and diversity switch 13,
One transceiver 11 includes DRX module 111.
In a particular application, DRX filter refers to the filter in the DRX receives link of LTE communication circuit.
In one embodiment, the DRX filter is SAW filter (SAW (surface acoustic
Wave) filter).
In a particular application, diversity switch is the switch realized based on diversity technique, for by one of same link or
Multiple signals pass respectively, alternatively, being received after two or more different signals are merged by same link.Point
Collection switch includes multiple signal output ends, merely exemplary in Fig. 1 to show a signal output end.
In the present embodiment, DRX module refers to by being set to the first transceiver end and being located at multiple in DRX receives link
Module composed by DRX interface is specifically as follows the DRX HUB (hub) as composed by multiple DRX interfaces.
As shown in Figure 1, the connection relationship in LTE communication circuit 1 provided by the present embodiment between each device is as follows:
The external diversity antenna 14 of the signal input part of diversity switch 13, the signal output end of diversity switch 13 connect DRX filtering
The signal input part of device 12, the signal output end of DRX filter 12 connect the signal input part of DRX module 111.
In a particular application, diversity antenna can be the external device of LTE communication circuit, also may belong to LTE communication electricity
The a part on road is not particularly limited in the present embodiment.Diversity antenna is used for only by two or more receiving antennas
The same signal of vertical reception.
The working principle of LTE communication circuit 1 provided by the present embodiment is as follows:
Received first frequency band signals of diversity antenna 14 and/or the second frequency band signals are transmitted to DRX through diversity switch 13 and filter
Wave device 12, DRX filter 12 export after being filtered to the first frequency band signals and/or the second frequency band signals to the first transceiver
11；
Wherein, the frequency range of the second frequency band signals is located in the frequency range of the first frequency band signals.
In a particular application, the first frequency band signals and the second frequency band signals can be the letter of any frequency range based on LTE technology
Number, as long as the frequency range for meeting the second frequency band signals is located in the frequency range of the first frequency band signals.
In one embodiment, first frequency band signals are the DRX for the B41 that frequency range is 2496MHz~2690MHz
Frequency band signals, second frequency band signals are the DRX frequency band signals for the B7 that frequency range is 2620MHz~2690MHz.
In one embodiment, the DRX filter is the SAW filter that nominal frequency is 190MHZ.
In one embodiment, first transceiver further includes connect with the signal output end of the DRX module
One modem.
In a particular application, the first modem is for being modulated demodulation to the signal that DRX module receives.
As shown in Fig. 2, illustratively showing the first transceiver 11 include thes case where the first modem 112.
The embodiment of the present application is by providing a kind of LTE communication electricity including the first transceiver, DRX filter and diversity switch
It is realized by switching the receives link formed by the first transceiver, DRX filter and diversity to the first frequency band signals on road
And the diversity reception of the second frequency band signals in the frequency range of the first frequency band signals, it can effectively improve signal reception
The hardware compatibility degree of link reduces cost and simplifies link structure.
Embodiment two
As shown in figure 3, in the present embodiment, the LTE communication circuit 1 in embodiment one further includes the second transceiver
(Tranceiver) 21, PRX (main collection receives) filter 22, DUP (duplexing, duplex) filter 23 and TXM module 24,
Second transceiver 21 includes PRX module 211.
Fig. 3 illustratively show the LTE communication circuit 1 in Fig. 1 further include the second transceiver 21, PRX filter 22,
DUP filter 23 and TXM module 24, the second transceiver 21 include the case where PRX module 211.
In a particular application, PRX filter refers to the filter in the PRX receives link of LTE communication circuit.
In one embodiment, the PRX filter is SAW filter.
In a particular application, DUP filter is the filter in another PRX receives link of LTE communication circuit, should
The signal that DUP filter can be used for receiving the second receiver and emit is filtered, because of referred to herein as duplexer filter.
In the present embodiment, PRX module refers to by being set to the second transceiver end and being located at multiple in PRX receives link
Module composed by PRX interface is specifically as follows the PRX HUB (hub) as composed by multiple PRX interfaces.
As shown in figure 3, in the present embodiment, the connection relationship between each device that is additionally arranged on the basis of example 1
It is as follows:
First signal output end of the signal input part external antenna 25 of TXM module 24, TXM module 24 connects PRX filter
22 signal input part, the signal input part of the second signal output termination DUP filter 23 of TXM module 24, PRX filter 22
Signal output end connect the first signal input part of PRX module 211, the signal output end of DUP filter 23 connects PRX module 211
Second signal input terminal.
In a particular application, antenna can be the external device of LTE communication circuit, also may belong to LTE communication circuit
A part is not particularly limited in the present embodiment.
In the present embodiment, the working principle for each device being additionally arranged on the basis of example 1 is as follows:
The first sub-band signals in the received third frequency band signals of antenna 25 are transmitted to PRX filter through TXM module 24
22, PRX filters 22 export after being filtered to the first sub-band signals to the second transceiver 21；
The second sub-band signals and/or the second frequency band signals in the received third frequency band signals of antenna 25 are through TXM module
24 are transmitted to DUP filter 23, and DUP filter 23 is filtered the second sub-band signals and/or the 4th frequency band signals rear defeated
Out to the second transceiver 21.
Wherein, the frequency range of the second sub-band signals is located in the frequency range of the 4th frequency band signals.
In a particular application, third frequency band signals and the 4th frequency band signals can be the letter of any frequency range based on LTE technology
Number, as long as the frequency range for meeting the second sub-band signals is located in the frequency range of the 4th frequency band signals.
In one embodiment, the third frequency band signals are the PRX for the B41 that frequency range is 2496MHz~2690MHz
Frequency band signals, the 4th frequency band signals are the PRX frequency band signals for the B7 that frequency range is 2620MHz~2690MHz.
In one embodiment, the frequency range of first sub-band signals is 2496MHz~2620MHz, described the
The frequency range of two sub-band signals is 2620MHz~2690MHz.
In one embodiment, the PRX filter and the DUP filter are SAW filter.
In one embodiment, second transceiver further includes connect with the signal output end of the PRX module
Two modems.
In a particular application, second modem is for being modulated demodulation to the signal that PRX module receives.
As shown in figure 4, illustratively showing the second transceiver 21 includes the case where second modem 212.
The embodiment of the present application by a receives link being made of the second transceiver, PRX filter and TXM module,
Realize the reception to the first sub-band signals in third frequency band signals；By by the second transceiver, DUP filter and TXM mould
Another receives link of block composition, realizes the master to the second sub-band signals and the 4th frequency band signals in the first frequency band signals
Collection receives, and can effectively improve the hardware compatibility degree of signal receives link and reduces the cost of PRX filter.
Embodiment three
As shown in figure 5, in the present embodiment, the first transceiver 11 includes the first modem 112, the second transceiver 21
Including second modem 212.
Fig. 5 illustratively shows the first transceiver 11 in Fig. 4 and includes the case where the first modem 112.
LTE communication circuit provided by the present embodiment may be implemented to the first frequency band signals and be located at the first frequency band signals
Frequency range in the second frequency band signals diversity reception, can also realize in third frequency band signals the first frequency sub-band letter
Number and the main collection of the second sub-band signals and the 4th frequency band signals receive.
In one embodiment, first transceiver and second transceiver are same transceiver.
In one embodiment, first modem and the second modem are same modulation /demodulation
Device.
Fig. 6 illustratively shows the first transceiver 11 in Fig. 5 and the second transceiver 12 is same transceiver, and first adjusts
The case where modulator-demodulator 112 and second modem 212 are same modem.
In a particular application, by setting same transceiver for the first transceiver and the second transceiver, by the first modulation
Demodulator and second modem are set as same modem, can be only by a transceiver implementation to the first frequency range
The diversity reception of signal and the second frequency band signals in the frequency range of the first frequency band signals, and realize to third frequency range
The main collection of the first sub-band signals and the second sub-band signals and the 4th frequency band signals in signal receives, and can simplify hardware knot
Structure reduces cost.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality
Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Comprising within the scope of protection of this application.
Claims (10)
1. a kind of LTE communication circuit, which is characterized in that switched including the first transceiver, DRX filter and diversity, described first
Transceiver includes DRX module；
The external diversity antenna of signal input part of the diversity switch, the signal output end of the diversity switch connect the DRX filter
The signal input part of wave device, the signal output end of the DRX filter connect the signal input part of the DRX module；
Received first frequency band signals of the diversity antenna and/or the second frequency band signals are transmitted to described through diversity switch
DRX filter, the DRX filter export after being filtered to first frequency band signals and/or second frequency band signals
To first transceiver；
Wherein, the frequency range of second frequency band signals is located in the frequency range of the first frequency band signals.
2. LTE communication circuit as described in claim 1, which is characterized in that first frequency band signals are that frequency range is
The DRX frequency band signals of the B41 of 2496MHz~2690MHz, second frequency band signals be frequency range be 2620MHz~
The DRX frequency band signals of the B7 of 2690MHz.
3. LTE communication circuit as described in claim 1, which is characterized in that first transceiver further includes and the DRX mould
First modem of the signal output end connection of block.
4. LTE communication circuit as claimed in any one of claims 1 to 3, which is characterized in that the DRX filter is nominal frequency
Rate is the SAW filter of 190MHZ.
5. LTE communication circuit as claimed in any one of claims 1 to 3, which is characterized in that further include the second transceiver, PRX filter
Wave device, DUP filter and TXM module, second transceiver include PRX module；
The signal input part external antenna of the TXM module, the first signal output end of the TXM module connect the PRX filtering
The signal input part of device, the second signal output of the TXM module terminate the signal input part of the DUP filter, the PRX
The signal output end of filter connects the first signal input part of the PRX module, and the signal output end of the DUP filter meets institute
State the second signal input terminal of PRX module；
The first sub-band signals in the received third frequency band signals of antenna are filtered through the TXM module transfer to the PRX
Wave device, the PRX filter export after being filtered to first sub-band signals to second transceiver；
The second sub-band signals and/or the 4th frequency band signals in the received third frequency band signals of antenna are through the TXM mould
Block is transmitted to the DUP filter, and the DUP filter is to second sub-band signals and/or the 4th frequency band signals
It exports after being filtered to second transceiver；
Wherein, the frequency range of second sub-band signals is located in the frequency range of the 4th frequency band signals.
6. LTE communication circuit as claimed in claim 5, which is characterized in that the third frequency band signals are that frequency range is
The PRX frequency band signals of the B41 of 2496MHz~2690MHz, the 4th frequency band signals be frequency range be 2620MHz~
The PRX frequency band signals of the B7 of 2690MHz.
7. LTE communication circuit as claimed in claim 6, which is characterized in that the frequency range of first sub-band signals is
2496MHz~2620MHz, the frequency range of second sub-band signals are 2620MHz~2690MHz.
8. LTE communication circuit as claimed in claim 5, which is characterized in that second transceiver further includes and the PRX mould
The second modem of the signal output end connection of block.
9. LTE communication circuit as claimed in claim 5, which is characterized in that the PRX filter and the DUP filter are equal
For SAW filter.
10. a kind of LTE communication terminal, which is characterized in that including LTE communication circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293609.7A CN109004949B (en) | 2018-11-01 | 2018-11-01 | LTE communication circuit and LTE communication terminal |
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|---|---|---|---|
| CN201811293609.7A CN109004949B (en) | 2018-11-01 | 2018-11-01 | LTE communication circuit and LTE communication terminal |
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| CN109004949B CN109004949B (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564744A (en) * | 2020-11-27 | 2021-03-26 | 天津七一二通信广播股份有限公司 | Transmission bandwidth synthesis circuit based on LTE communication module and implementation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656610A (en) * | 2015-12-30 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Radio frequency circuit and terminal for realizing carrier aggregation |
| CN106921405A (en) * | 2017-02-28 | 2017-07-04 | 维沃移动通信有限公司 | A kind of radio frequency front-end device |
| CN107104685A (en) * | 2017-05-27 | 2017-08-29 | 惠州Tcl移动通信有限公司 | The mobile terminal and its method of a kind of extension LTE B41 band bandwidths |
| CN107171676A (en) * | 2017-07-21 | 2017-09-15 | 惠州Tcl移动通信有限公司 | A kind of full frequency band radio-frequency unit and communication terminal based on B41 frequency ranges |
-
2018
- 2018-11-01 CN CN201811293609.7A patent/CN109004949B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656610A (en) * | 2015-12-30 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Radio frequency circuit and terminal for realizing carrier aggregation |
| CN106921405A (en) * | 2017-02-28 | 2017-07-04 | 维沃移动通信有限公司 | A kind of radio frequency front-end device |
| CN107104685A (en) * | 2017-05-27 | 2017-08-29 | 惠州Tcl移动通信有限公司 | The mobile terminal and its method of a kind of extension LTE B41 band bandwidths |
| CN107171676A (en) * | 2017-07-21 | 2017-09-15 | 惠州Tcl移动通信有限公司 | A kind of full frequency band radio-frequency unit and communication terminal based on B41 frequency ranges |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564744A (en) * | 2020-11-27 | 2021-03-26 | 天津七一二通信广播股份有限公司 | Transmission bandwidth synthesis circuit based on LTE communication module and implementation method |
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