CN109004949B - LTE communication circuit and LTE communication terminal - Google Patents

LTE communication circuit and LTE communication terminal Download PDF

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CN109004949B
CN109004949B CN201811293609.7A CN201811293609A CN109004949B CN 109004949 B CN109004949 B CN 109004949B CN 201811293609 A CN201811293609 A CN 201811293609A CN 109004949 B CN109004949 B CN 109004949B
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band signal
filter
frequency band
drx
signal
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CN109004949A (en
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唐龙
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Oppo Chongqing Intelligent Technology Co Ltd
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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

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Abstract

The LTE communication circuit comprises a first transceiver, a DRX filter and a diversity switch, wherein the first transceiver comprises a DRX module; the signal input end of the diversity switch is externally connected with a diversity antenna, the signal output end of the diversity switch is connected with the signal input end of the DRX filter, and the signal output end of the DRX filter is connected with the signal input end of the DRX module. According to the embodiment of the application, the diversity reception of the first frequency band signal and the second frequency band signal within the frequency range of the first frequency band signal is realized through the receiving link composed of the first transceiver, the DRX filter and the diversity switch, the hardware compatibility degree of the signal receiving link can be effectively improved, the cost is reduced, and the link structure is simplified.

Description

LTE communication circuit and LTE communication terminal
Technical Field
The present application belongs to the field of communication technology, and in particular, to an LTE (Long Term Evolution) communication circuit and an LTE communication terminal.
Background
With the continuous development of communication technology, various terminal devices with communication functions are developed, which brings great convenience for communication in daily production and life of people.
At present, the hardware compatibility of a signal receiving link of an LTE communication terminal is low and the cost is high.
Disclosure of Invention
In view of this, embodiments of the present application provide an LTE communication circuit and an LTE communication terminal, so as to solve the problems of low hardware compatibility and high cost of a signal receiving link of the LTE communication terminal.
A first aspect of an embodiment of the present application provides an LTE communication circuit, which includes a first transceiver, a DRX filter, and a diversity switch, where the first transceiver includes a DRX module;
the signal input end of the diversity switch is externally connected with a diversity antenna, the signal output end of the diversity switch is connected with the signal input end of the DRX filter, and the signal output end of the DRX filter is connected with the signal input end of the DRX module;
the first frequency band signal and/or the second frequency band signal received by the diversity antenna are transmitted to the DRX filter through the diversity switch, and the DRX filter filters the first frequency band signal and/or the second frequency band signal and outputs the first frequency band signal and/or the second frequency band signal to the first transceiver;
wherein the frequency range of the second frequency band signal is within the frequency range of the first frequency band signal.
In one embodiment, the first band signal is a DRX band signal of B41 with a frequency range of 2496MHz to 2690MHz, and the second band signal is a DRX band signal of B7 with a frequency range of 2620MHz to 2690 MHz.
In one embodiment, the first transceiver further comprises a first modem connected to a signal output of the DRX module.
In one embodiment, the DRX filter is a surface acoustic wave filter with a nominal frequency of 190 MHZ.
In one embodiment, the LTE communication circuitry further comprises a second transceiver comprising a PRX module, a PRX filter, a DUP filter, and a TXM module;
the signal input end of the TXM module is externally connected with an antenna, the first signal output end of the TXM module is connected with the signal input end of the PRX filter, the second signal output end of the TXM module is connected with the signal input end of the DUP filter, the signal output end of the PRX filter is connected with the first signal input end of the PRX module, and the signal output end of the DUP filter is connected with the second signal input end of the PRX module;
a first sub-band signal in a third band signal received by the antenna is transmitted to the PRX filter through the TXM module, and the PRX filter filters the first sub-band signal and outputs the first sub-band signal to the second transceiver;
a second sub-band signal and/or a fourth frequency band signal in a third frequency band signal received by the antenna are transmitted to the DUP filter through the TXM module, and the DUP filter filters the second sub-band signal and/or the fourth frequency band signal and outputs the second sub-band signal and/or the fourth frequency band signal to the second transceiver;
wherein the frequency range of the second sub-band signal is within the frequency range of the fourth band signal.
In one embodiment, the third frequency band signal is a PRX frequency band signal of B41 with a frequency range of 2496MHz to 2690MHz, and the fourth frequency band signal is a PRX frequency band signal of B7 with a frequency range of 2620MHz to 2690 MHz.
In one embodiment, the frequency range of the first sub-band signal is 2496MHz to 2620MHz, and the frequency range of the second sub-band signal is 2620MHz to 2690 MHz.
In one embodiment, the second transceiver further comprises a second modem connected to the signal output of the PRX module.
In one embodiment, the PRX filter and the DUP filter are both surface acoustic wave filters.
A second aspect of the embodiments of the present application provides an LTE communication terminal, which includes the LTE communication circuit described above.
The embodiment of the application provides an LTE communication circuit comprising a first transceiver, a DRX filter and a diversity switch, and realizes diversity reception of a first frequency band signal and a second frequency band signal within the frequency range of the first frequency band signal through a receiving link consisting of the first transceiver, the DRX filter and the diversity switch, so that the hardware compatibility degree of the signal receiving link can be effectively improved, the cost is reduced, and the link structure is simplified;
the embodiment of the application also provides an LTE communication circuit comprising a second transceiver, a PRX filter, a DUP filter and a TXM module, and the reception of the first sub-band signal in the third band signal is realized through a receiving link composed of the second transceiver, the PRX filter and the TXM module; through another receiving link composed of the second transceiver, the DUP filter and the TXM module, the main set receiving of the second sub-band signal and the fourth band signal in the third band signal is realized, the hardware compatibility degree of the signal receiving link can be effectively improved, and the cost of the PRX filter is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 and fig. 2 are schematic structural diagrams of an LTE communication circuit provided in an embodiment of the present application;
fig. 3 and fig. 4 are schematic structural diagrams of an LTE communication circuit provided in the second embodiment of the present application;
fig. 5 and fig. 6 are schematic structural diagrams of an LTE communication circuit provided in a third embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
Example one
The embodiment provides an LTE communication circuit, which is applied to LTE communication terminals such as mobile phones, tablet computers, smart bands, and personal digital assistants.
As shown in fig. 1, the LTE communication circuit 1 provided in this embodiment includes a first transceiver (Tranceiver)11, a DRX (Discontinuous Reception) filter 12, and a diversity switch 13, where the first transceiver 11 includes a DRX module 111.
In a specific application, the DRX filter refers to a filter on a DRX receiving link of the LTE communication circuit.
In one embodiment, the DRX filter is a surface acoustic wave (saw) filter.
In a specific application, the diversity switch is a switch implemented based on a diversity technology, and is used for respectively transmitting one or more signals of the same link, or combining two or more different signals and then receiving the combined signals through the same link. The diversity switch comprises a plurality of signal outputs, only one of which is shown in fig. 1 by way of example.
In this embodiment, the DRX module is a module composed of a plurality of DRX interfaces disposed at the first transceiver and located on the DRX receiving link, and specifically may be a DRX HUB (HUB) composed of a plurality of DRX interfaces.
As shown in fig. 1, the connection relationship between the devices in the LTE communication circuit 1 provided in this embodiment is as follows:
the signal input end of the diversity switch 13 is externally connected with the diversity antenna 14, the signal output end of the diversity switch 13 is connected with the signal input end of the DRX filter 12, and the signal output end of the DRX filter 12 is connected with the signal input end of the DRX module 111.
In a specific application, the diversity antenna may be an external device of the LTE communication circuit, or may belong to a part of the LTE communication circuit, and is not particularly limited in this embodiment. Diversity antennas are used to receive the same signal independently through two or more receive antennas.
The operating principle of the LTE communication circuit 1 provided in this embodiment is as follows:
the first frequency band signal and/or the second frequency band signal received by the diversity antenna 14 are transmitted to the DRX filter 12 through the diversity switch 13, and the DRX filter 12 filters the first frequency band signal and/or the second frequency band signal and outputs the first frequency band signal and/or the second frequency band signal to the first transceiver 11;
the frequency range of the second frequency band signal is located in the frequency range of the first frequency band signal.
In a specific application, the first frequency band signal and the second frequency band signal may be any frequency band signals based on the LTE technology, as long as the frequency range of the second frequency band signal is within the frequency range of the first frequency band signal.
In one embodiment, the first band signal is a DRX band signal of B41 with a frequency range of 2496MHz to 2690MHz, and the second band signal is a DRX band signal of B7 with a frequency range of 2620MHz to 2690 MHz.
In one embodiment, the DRX filter is a surface acoustic wave filter with a nominal frequency of 190 MHZ.
In one embodiment, the first transceiver further comprises a first modem connected to a signal output of the DRX module.
In a specific application, the first modem is used for modulation and demodulation of signals received by the DRX module.
As shown in fig. 2, the case where the first transceiver 11 further includes the first modem 112 is exemplarily shown.
By providing an LTE communication circuit including a first transceiver, a DRX filter, and a diversity switch, the embodiments of the present application implement diversity reception of a first frequency band signal and a second frequency band signal within a frequency range of the first frequency band signal through a reception link composed of the first transceiver, the DRX filter, and the diversity switch, and can effectively improve a hardware compatibility degree of the signal reception link, reduce cost, and simplify a link structure.
Example two
As shown in fig. 3, in the present embodiment, the LTE communication circuit 1 in the first embodiment further includes a second transceiver (transceiver) 21, a PRX (primary set reception) filter 22, a DUP (duplex) filter 23, and a TXM module 24, and the second transceiver 21 includes a PRX module 211.
Fig. 3 exemplarily shows a case where the LTE communication circuit 1 in fig. 1 further includes a second transceiver 21, a PRX filter 22, a DUP filter 23, and a TXM module 24, and the second transceiver 21 includes a PRX module 211.
In a particular application, a PRX filter refers to a filter on a PRX receive link of an LTE communication circuit.
In one embodiment, the PRX filter is a surface acoustic wave filter.
In a particular application, the DUP filter is a filter on another PRX receive chain of the LTE communication circuit that may be used to filter signals received and transmitted by the second receiver, and is therefore referred to as a duplex filter.
In this embodiment, the PRX module is a module composed of a plurality of PRX interfaces disposed at the second transceiver and located on the PRX receiving link, and specifically may be a PRX HUB (HUB) composed of a plurality of PRX interfaces.
As shown in fig. 3, in this embodiment, the connection relationship between the devices additionally arranged on the basis of the first embodiment is as follows:
the signal input end of the TXM module 24 is externally connected with the antenna 25, the first signal output end of the TXM module 24 is connected with the signal input end of the PRX filter 22, the second signal output end of the TXM module 24 is connected with the signal input end of the DUP filter 23, the signal output end of the PRX filter 22 is connected with the first signal input end of the PRX module 211, and the signal output end of the DUP filter 23 is connected with the second signal input end of the PRX module 211.
In a specific application, the antenna may be an external device of the LTE communication circuit, or may belong to a part of the LTE communication circuit, and is not particularly limited in this embodiment.
In this embodiment, the operating principle of each additionally arranged device on the basis of the first embodiment is as follows:
a first sub-band signal in the third frequency band signal received by the antenna 25 is transmitted to the PRX filter 22 through the TXM module 24, and the PRX filter 22 filters the first sub-band signal and outputs the first sub-band signal to the second transceiver 21;
the second sub-band signal and/or the second frequency band signal in the third frequency band signal received by the antenna 25 are transmitted to the DUP filter 23 through the TXM module 24, and the DUP filter 23 filters the second sub-band signal and/or the fourth frequency band signal and outputs the second sub-band signal and/or the fourth frequency band signal to the second transceiver 21.
Wherein the frequency range of the second sub-band signal is located within the frequency range of the fourth band signal.
In a specific application, the third frequency band signal and the fourth frequency band signal may be any frequency band signals based on the LTE technology, as long as the frequency range of the second sub-band signal is within the frequency range of the fourth frequency band signal.
In one embodiment, the third frequency band signal is a PRX frequency band signal of B41 with a frequency range of 2496MHz to 2690MHz, and the fourth frequency band signal is a PRX frequency band signal of B7 with a frequency range of 2620MHz to 2690 MHz.
In one embodiment, the frequency range of the first sub-band signal is 2496MHz to 2620MHz, and the frequency range of the second sub-band signal is 2620MHz to 2690 MHz.
In one embodiment, the PRX filter and the DUP filter are both surface acoustic wave filters.
In one embodiment, the second transceiver further comprises a second modem connected to the signal output of the PRX module.
In a particular application, the second modem is used to modem incoming signals received by the PRX module.
As shown in fig. 4, the case where the second transceiver 21 includes the second modem 212 is exemplarily shown.
According to the embodiment of the application, the first sub-band signal in the third frequency band signal is received through a receiving link composed of the second transceiver, the PRX filter and the TXM module; through another receiving link composed of a second transceiver, a DUP filter and a TXM module, the main set receiving of the second sub-frequency band signal and the fourth frequency band signal in the first frequency band signal is realized, the hardware compatibility degree of the signal receiving link can be effectively improved, and the cost of the PRX filter is reduced.
EXAMPLE III
As shown in fig. 5, in the present embodiment, the first transceiver 11 includes a first modem 112, and the second transceiver 21 includes a second modem 212.
Fig. 5 exemplarily shows a case where the first transceiver 11 in fig. 4 includes the first modem 112.
The LTE communication circuit provided in this embodiment can implement diversity reception of the first frequency band signal and the second frequency band signal located in the frequency range of the first frequency band signal, and can also implement main set reception of the first frequency band signal, the second frequency band signal, and the fourth frequency band signal in the third frequency band signal.
In one embodiment, the first transceiver and the second transceiver are the same transceiver.
In one embodiment, the first modem and the second modem are the same modem.
Fig. 6 exemplarily shows a case where the first transceiver 11 and the second transceiver 12 in fig. 5 are the same transceiver, and the first modem 112 and the second modem 212 are the same modem.
In a specific application, the first transceiver and the second transceiver are set as the same transceiver, and the first modem and the second modem are set as the same modem, so that diversity reception of a first frequency band signal and a second frequency band signal within a frequency range of the first frequency band signal can be realized only by one transceiver, and main set reception of the first frequency band signal, the second frequency band signal and a fourth frequency band signal in a third frequency band signal can be realized, a hardware structure can be simplified, and cost can be reduced.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. An LTE communication circuit, comprising a DRX receiving link composed of a first transceiver, a DRX filter and a diversity switch, wherein the first transceiver comprises a DRX module, and the DRX module is a module composed of a plurality of DRX interfaces which are arranged at the first transceiver and are positioned on the DRX receiving link;
the signal input end of the diversity switch is externally connected with a diversity antenna, the signal output end of the diversity switch is connected with the signal input end of the DRX filter, the signal output end of the DRX filter is connected with the signal input end of the DRX module, and the diversity switch comprises a plurality of signal output ends;
the first frequency band signal and/or the second frequency band signal received by the diversity antenna are transmitted to the DRX filter through the diversity switch, the DRX filter filters the first frequency band signal and/or the second frequency band signal and then outputs the first frequency band signal and/or the second frequency band signal to the first transceiver, and the diversity switch is used for combining two or more different signals and then receiving the signals through the same DRX receiving link;
wherein the frequency range of the second frequency band signal is within the frequency range of the first frequency band signal.
2. The LTE communication circuit of claim 1, wherein the first frequency band signal is a DRX frequency band signal of B41 having a frequency range of 2496MHz to 2690MHz, and the second frequency band signal is a DRX frequency band signal of B7 having a frequency range of 2620MHz to 2690 MHz.
3. The LTE communication circuitry of claim 1 wherein said first transceiver further comprises a first modem connected to a signal output of said DRX module.
4. The LTE communication circuit of any of claims 1-3, wherein said DRX filter is a surface acoustic wave filter with a nominal frequency of 190 MHZ.
5. The LTE communication circuit of any of claims 1-3, further comprising a second transceiver, a PRX filter, a DUP filter, and a TXM module, the second transceiver comprising a PRX module;
the signal input end of the TXM module is externally connected with an antenna, the first signal output end of the TXM module is connected with the signal input end of the PRX filter, the second signal output end of the TXM module is connected with the signal input end of the DUP filter, the signal output end of the PRX filter is connected with the first signal input end of the PRX module, and the signal output end of the DUP filter is connected with the second signal input end of the PRX module;
a first sub-band signal in a third band signal received by the antenna is transmitted to the PRX filter through the TXM module, and the PRX filter filters the first sub-band signal and outputs the first sub-band signal to the second transceiver;
a second sub-band signal and/or a fourth frequency band signal in a third frequency band signal received by the antenna are transmitted to the DUP filter through the TXM module, and the DUP filter filters the second sub-band signal and/or the fourth frequency band signal and outputs the second sub-band signal and/or the fourth frequency band signal to the second transceiver;
wherein the frequency range of the second sub-band signal is within the frequency range of the fourth band signal.
6. The LTE communication circuit of claim 5, wherein the third frequency band signal is a PRX frequency band signal of B41 with a frequency range of 2496MHz to 2690MHz, and the fourth frequency band signal is a PRX frequency band signal of B7 with a frequency range of 2620MHz to 2690 MHz.
7. The LTE communication circuit of claim 6, wherein the frequency range of the first sub-band signal is 2496MHz to 2620MHz, and the frequency range of the second sub-band signal is 2620MHz to 2690 MHz.
8. The LTE communication circuit of claim 5, wherein the second transceiver further comprises a second modem connected to a signal output of the PRX module.
9. The LTE communication circuit of claim 5, wherein the PRX filter and the DUP filter are both surface acoustic wave filters.
10. An LTE communication terminal, comprising the LTE communication circuit of any of claims 1-9.
CN201811293609.7A 2018-11-01 2018-11-01 LTE communication circuit and LTE communication terminal Active CN109004949B (en)

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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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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

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