CN113993227A - Communication module and terminal equipment - Google Patents
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- CN113993227A CN113993227A CN202111173277.0A CN202111173277A CN113993227A CN 113993227 A CN113993227 A CN 113993227A CN 202111173277 A CN202111173277 A CN 202111173277A CN 113993227 A CN113993227 A CN 113993227A
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- 238000004891 communication Methods 0.000 title claims abstract description 217
- 238000002955 isolation Methods 0.000 claims abstract description 124
- 239000003990 capacitor Substances 0.000 claims description 47
- 238000010586 diagram Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
The application discloses a communication module and terminal equipment, wherein the communication module comprises a communication module and an antenna tuning module; the communication module comprises a first fixed pin, a first direct current signal communication unit, a first clock signal communication unit and a first isolation unit; the antenna tuning module comprises a second direct current signal communication unit, a second clock signal communication unit and a second isolation unit; the first direct current signal communication unit transmits direct current signals with the second direct current signal communication unit through the first isolation unit, the first fixed pin and the second isolation unit; the first clock signal communication unit transmits clock signals with the second clock signal communication unit through the first isolation unit, the first fixed pin and the second isolation unit; the first isolation unit and the second isolation unit isolate the direct current signal from the clock signal. The direct current signal and the clock signal share the first fixed pin and can be normally transmitted, so that the communication module adopting the M.2 interface can meet the communication requirement of the MIPI standard.
Description
Technical Field
The application relates to the technical field of communication, in particular to a communication module and terminal equipment.
Background
With the development of communication technology, terminal devices have been gradually developed from the original 2G communication era to 3G, 4G, even 5G communication and the like. Accordingly, various accessories are also required to be developed correspondingly to meet the higher-level communication requirements. The antenna is one of the antennas, in the 3G communication era, the frequency range of the antenna only needs to meet 700MHz to 2200MHz, and in the 4G and 5G communication era, the frequency range of the antenna needs to reach 6G at most.
In order to enable the antenna to meet higher and more frequency ranges, an antenna tuning switch (antenna tuning switch) has come into play, and the antenna tuning switch can better take performance indexes of a wide frequency range into consideration. The existing antenna tuning switch needs to communicate with a communication module through a Mobile Industry Processor Interface (MIPI) standard, however, a communication channel reserved by an m.2 interface adopted by the existing communication module cannot meet the communication requirement of the MIPI standard.
Disclosure of Invention
The application aims to provide a communication module and terminal equipment, so that a communication channel and an antenna tuning switch reserved by M.2 can communicate with the MIPI standard.
This application first aspect provides a communication module, includes: a communication module and an antenna tuning module; the communication module comprises a first fixed pin, a first direct current signal communication unit, a first clock signal communication unit and a first isolation unit; the antenna tuning module comprises a second direct current signal communication unit, a second clock signal communication unit and a second isolation unit; the first direct current signal communication unit and the first clock signal communication unit are respectively connected with one end of the first isolation unit; the other end of the first isolation unit is connected with one end of the first fixed pin; the other end of the first fixed pin is connected with one end of a second isolation unit, and the other end of the second isolation unit is respectively connected with a second direct current signal communication unit and a second clock signal communication unit; the first direct current signal communication unit transmits direct current signals with the second direct current signal communication unit through the first isolation unit, the first fixed pin and the second isolation unit in sequence; the first clock signal communication unit sequentially passes through the first isolation unit, the first fixed pin and the second isolation unit and transmits clock signals with the second clock signal communication unit; the first isolation unit and the second isolation unit are used for isolating the direct current signal and the clock signal.
In one embodiment, the first isolation unit comprises a first alternating current isolation part and a first direct current isolation part; the first direct current signal communication unit is connected with one end of the first alternating current isolation part, and the first clock signal communication unit is connected with one end of the first direct current isolation part; the other ends of the first alternating current isolation part and the first direct current isolation part are respectively connected with the first fixed pin.
In one embodiment, the first ac isolation portion includes a first inductor, and the first dc isolation portion includes a first capacitor; the first direct current signal communication unit is connected with one end of the first inductor, the first clock signal communication unit is connected with one end of the first capacitor, and the other end of the first inductor and the other end of the first capacitor are respectively connected with one end of the first fixed pin.
In one embodiment, the first ac isolation part includes a plurality of first inductors connected in series, and the first dc isolation part includes a plurality of first capacitors connected in parallel; the first direct current signal communication unit is connected with one ends of the first inductors, the first clock signal communication unit is connected with one ends of the first capacitors, and the other ends of the first inductors and the other ends of the first capacitors are respectively connected with one ends of the first fixed pins.
In one embodiment, the second isolation unit comprises a second ac isolation section and a second dc isolation section; the other end of the first fixing pin is respectively connected with one end of the second alternating current isolation part and one end of the second direct current isolation part; the other end of the second alternating current isolation part is connected with the second direct current signal communication unit, and the other end of the second direct current isolation part is connected with the second clock signal communication unit.
In one embodiment, the second ac isolation portion includes a second inductor, and the second dc isolation portion includes a second capacitor; the other end of the first fixed pin is respectively connected with one end of a second inductor and one end of a second capacitor, and the other end of the second inductor is connected with a second direct-current signal communication unit; the other end of the second capacitor is connected with the second clock signal communication unit.
In one embodiment, the second ac isolation portion includes a plurality of second inductors connected in series, and the second dc isolation portion includes a plurality of second capacitors connected in parallel; the other end of the first fixed pin is respectively connected with one ends of a plurality of second inductors and one ends of a plurality of second capacitors, and the other ends of the plurality of second inductors are connected with the second direct-current signal communication unit; the other ends of the plurality of second capacitors are connected with the second clock signal communication unit.
In one embodiment, the communication module further comprises a second fixed pin and a first data signal communication unit, and the antenna tuning module further comprises a second data signal communication unit; the first data signal communication unit, the second fixed pin and the second data signal communication unit are sequentially connected; the first data signal communication unit transmits data signals with the second data signal communication unit through the second fixed pin.
A second aspect of the present application provides a terminal device, comprising any one of the communication modules of the first aspect of the present application.
The application provides a communication module, first direct current signal communication unit and second direct current signal communication unit communicate through first fixed pin, first clock signal communication unit and second clock signal communication unit also communicate through first fixed pin, also be the first fixed pin of direct current signal and clock signal sharing, and be provided with first isolation unit and second isolation unit, keep apart direct current signal and clock signal, make direct current signal and clock signal under the circumstances of sharing first fixed pin, can also normally transmit, make the communication module that adopts the M.2 interface can satisfy MIPI standard communication demand.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below.
Fig. 1 is a block diagram of a communication module according to an embodiment of the present disclosure.
Fig. 2 is a block diagram of a communication module according to another embodiment of the present disclosure.
Fig. 3 is a block diagram of a communication module according to another embodiment of the present disclosure.
Fig. 4 is a block diagram of a communication module according to another embodiment of the present disclosure.
Fig. 5 is a block diagram of a terminal device according to an embodiment of the present application.
Description of reference numerals:
the antenna tuning module 120, the second dc signal communication unit 121, the second clock signal communication unit 122, the second isolation unit 123, the second ac isolation 1231, the second dc isolation 1232, the second data signal communication unit 124, the first inductor L1, the first capacitor C1, the second inductor L2, the second capacitor C2, the terminal device 200, the system bus 201, the processor 202, the nonvolatile storage medium 203, the memory 204, the network interface 205, the display screen 206, the input device 207, the rf unit 208, the operating system 209, the computer program 210, and the antenna 211.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
When the communication module and the antenna tuning module 102 communicate with each other according to the MIPI standard, three types of DATA, i.e., a clock signal CLK, a direct current signal VIO, and a DATA signal DATA, need to be transmitted, and therefore, theoretically, three communication channels need to be provided between the communication module and the antenna tuning module 102. However, the current communication module adopts the m.2 communication module 101, in which the PIN (PIN) definition of the m.2 communication module 101 has been fixed in advance, in which PIN56 is defined for transmitting clock signals, PIN58 is defined for transmitting dc signals, and a channel for transmitting dc signals is lacked.
For the above reasons, referring to fig. 1, the present embodiment provides a communication module 100, including: a communication module 110 and an antenna tuning module 120.
The communication module 110 includes a first fixed pin 111, a first dc signal communication unit 112, a first clock signal communication unit 113, and a first isolation unit 114; the antenna tuning module 120 includes a second direct current signal communication unit 121, a second clock signal communication unit 122, and a second isolation unit 123. The communication module 100 is an m.2 communication module 110, and the first fixed PIN 111 is a PIN56 preset by the m.2 communication module 110. The first dc signal communication unit 112 and the second dc signal communication unit 121 may communicate with each other to transmit a dc signal. The first clock signal communication unit 113 and the second clock signal communication unit 122 may communicate with each other to transmit a clock signal.
The first dc signal communication unit 112 and the first clock signal communication unit 113 are connected to one end of the first isolation unit 114, respectively; the other end of the first isolation unit 114 is connected to one end of the first fixed pin 111; the other end of the first fixed pin 111 is connected to one end of a second isolation unit 123, and the other end of the second isolation unit 123 is connected to the second dc signal communication unit 121 and the second clock signal communication unit 122, respectively.
The first dc signal communication unit 112 sequentially passes through the first isolation unit 114, the first fixed pin 111 and the second isolation unit 123, and performs dc signal transmission with the second dc signal communication unit 121; the first clock signal communication unit 113 sequentially passes through the first isolation unit 114, the first fixed pin 111 and the second isolation unit 123, and performs clock signal transmission with the second clock signal communication unit 122; the first isolation unit 114 and the second isolation unit 123 are used to isolate the dc signal from the clock signal. The direct current signal is a direct current signal CLK required by communication through an MIPI standard, and the clock signal is a clock signal CLK required by communication through the MIPI standard.
As can be seen from the above, the first dc signal communication unit 112 and the second dc signal communication unit 121 communicate with each other through the first fixed pin 111, and the first clock signal communication unit 113 and the second clock signal communication unit 122 communicate with each other through the first fixed pin 111. And under the isolation action of the first isolation unit 114 and the second isolation unit 123, the dc signal and the clock signal are isolated from each other and can both be transmitted normally. Therefore, in the communication module 100 provided in the embodiment of the present application, the first dc signal communication unit 112 and the second dc signal communication unit 121 communicate through the first fixed pin 111, and the first clock signal communication unit 113 and the second clock signal communication unit 122 also communicate through the first fixed pin 111, that is, the dc signal and the clock signal share the first fixed pin 111, and the first isolation unit 114 and the second isolation unit 123 are provided to isolate the dc signal and the clock signal, so that the dc signal and the clock signal can also be normally transmitted under the condition of sharing the first fixed pin 111, and the communication module 110 using the m.2 interface can meet the MIPI standard communication requirement.
In one embodiment, referring to fig. 2, the first isolation unit 114 includes a first ac isolation portion 1141 and a first dc isolation portion 1142. The first dc signal communication unit 112 is connected to one end of the first ac isolating part 1141, and the first clock signal communication unit 113 is connected to one end of the first dc isolating part 1142; the other ends of the first ac isolation portion 1141 and the first dc isolation portion 1142 are connected to the first fixed pin 111, respectively.
Therefore, the first ac isolating part 1141 is connected between the first dc signal communication unit 112 and the first fixing pin 111 to ensure that the dc signal can be transmitted to the first dc signal communication unit 112, and simultaneously block the clock signal to prevent the clock signal from being transmitted to the first dc signal communication unit 112. The first dc isolation portion 1142 is connected between the first clock signal communication unit 113 and the first fixing pin 111 to ensure that the clock signal can be transmitted to the first clock signal communication unit 113, and simultaneously block the dc signal to prevent the dc signal from being transmitted to the first clock signal communication unit 113.
In one embodiment, referring to fig. 2 and 3, the first ac isolation portion 1141 includes a first inductor L1, and the first dc isolation portion 1142 includes a first capacitor C1. The first dc signal communication unit 112 is connected to one end of the first inductor L1, the first clock signal communication unit 113 is connected to one end of the first capacitor C1, and the other ends of the first inductor L1 and the first capacitor C1 are respectively connected to one end of the first fixing pin 111.
Therefore, the first inductor L1 is connected between the first dc signal communication unit 112 and the first fixed pin 111, and the performance of the first inductor L1 for dc-blocking and ac-blocking is utilized to ensure that the dc signal can be transmitted to the first dc signal communication unit 112, and simultaneously block the clock signal, thereby preventing the clock signal from being transmitted to the first dc signal communication unit 112. The first capacitor C1 is connected between the first clock signal communication unit 113 and the first fixed pin 111, and the first capacitor C1 can isolate the dc signal and ensure that the clock signal can be transmitted to the first clock signal communication unit 113 by using the ac isolation performance of the first capacitor C1, and prevent the dc signal from being transmitted to the first clock signal communication unit 113.
In another embodiment, referring to fig. 4, the first ac isolation part 1141 includes a plurality of first inductors L1 connected in series, and the first dc isolation part 1142 includes a plurality of first capacitors C1 connected in parallel, where a plurality means two or more, and two are taken as an example in the figure. The first dc signal communication unit 112 is connected to one end of the plurality of first inductors L1, the first clock signal communication unit 113 is connected to one end of the plurality of first capacitors C1, and the other ends of the plurality of first inductors L1 and the other ends of the plurality of first capacitors C1 are connected to one end of the first fixing pin 111, respectively.
Compared with the single first inductor L1, the inductance of the plurality of series-connected first inductors L1 is significantly increased, so that the plurality of series-connected first inductors L1 can better isolate the ac signal and prevent the clock signal from crosstalk to the first dc signal communication unit 112. Compared with the single first capacitor C1, the capacitance of the plurality of parallel first capacitors C1 is significantly increased, so that the dc signals can be better isolated and prevented from crosstalk to the first clock signal communication unit 113.
In one embodiment, referring to fig. 2 and 3, the second isolation unit 123 includes a second ac isolation part 1231 and a second dc isolation part 1232; the other end of the first fixed pin 111 is connected to one end of the second ac isolation part 1231 and one end of the second dc isolation part 1232, respectively; the other end of the second ac isolation 1231 is connected to the second dc signal communication unit 121, and the other end of the second dc isolation 1232 is connected to the second clock signal communication unit 122.
Therefore, the second ac isolation portion 1231 is connected between the second dc signal communication unit 121 and the first fixed pin 111 to ensure that the dc signal can be transmitted to the second dc signal communication unit 121, and simultaneously block the clock signal to prevent the clock signal from being transmitted to the second dc signal communication unit 121. The second dc isolation part 1232 is connected between the second clock signal communication unit 122 and the first fixed pin 111 to ensure that the clock signal can be transmitted to the second clock signal communication unit 122, and simultaneously block the dc signal to prevent the dc signal from being transmitted to the second clock signal communication unit 122.
In one embodiment, referring to fig. 3, the second ac isolation 1231 includes a second inductor L2, and the second dc isolation 1232 includes a second capacitor C2; the other end of the first fixed pin 111 is connected to one end of a second inductor L2 and one end of a second capacitor C2, respectively, and the other end of the second inductor L2 is connected to the second dc signal communication unit 121; the other end of the second capacitor C2 is connected to the second clock signal communication unit 122.
Therefore, the second inductor L2 is connected between the second dc signal communication unit 121 and the first fixed pin 111, and the performance of dc isolation and ac isolation of the second inductor L2 is utilized to ensure that the dc signal can be transmitted to the second dc signal communication unit 121, and simultaneously, the clock signal can be isolated, thereby preventing the clock signal from being transmitted to the second dc signal communication unit 121. The second capacitor C2 is connected between the second clock signal communication unit 122 and the first fixed pin 111, and the dc blocking performance of the second capacitor C2 ensures that the clock signal can be transmitted to the second clock signal communication unit 122, and isolates the dc signal to prevent the dc signal from being transmitted to the second clock signal communication unit 122.
In another embodiment, referring to fig. 4, the second ac isolation part 1231 includes a plurality of second inductors L2 connected in series, and the second dc isolation part 1232 includes a plurality of second capacitors C2 connected in parallel, where a plurality means two or more, and two are taken as an example in the figure. The other end of the first fixed pin 111 is connected to one end of a plurality of second inductors L2 and one end of a plurality of second capacitors C2, respectively, and the other end of a plurality of second inductors L2 is connected to the second dc signal communication unit 121; the other ends of the plurality of second capacitors C2 are connected to the second clock signal communication unit 122.
Compared with the single second inductor L2, the inductance of the plurality of second inductors L2 connected in series is significantly increased, so that the plurality of second inductors L2 connected in series can better isolate the ac signal and prevent the clock signal from crosstalk to the second dc signal communication unit 121. Compared with a single second capacitor C2, the capacitance of the plurality of second capacitors C2 connected in parallel is significantly increased, so that the dc signals can be better isolated and prevented from crosstalk to the second clock signal communication unit 122.
In one embodiment, the communication module 110 further includes a second fixing pin 115 and a first data signal communication unit 116, and the antenna tuning module 120 further includes a second data signal communication unit 124, and the first data signal communication unit 116 and the second data signal communication unit 124 can communicate to transmit data signals. The first data signal communication unit 116, the second fixing pin 115 and the second data signal communication unit 124 are connected in sequence; the first data signal communication unit 116 performs data signal transmission with the second data signal communication unit 124 through the second fixing pin 115. The second fixed PIN 115 is a PIN58 defined by the m.2 communication module 110, and a data module can be transmitted between the first data signal communication unit 116 and the second data signal communication unit 124.
The embodiment of the present application further provides a terminal device 200, which includes the communication module 100 in any embodiment of the present application.
Specifically, referring to fig. 5, the terminal device 200 may include devices such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and fixed terminals such as a Digital TV, a desktop computer, and the like.
The terminal device 200 may specifically include: a processor 202, a memory, a network interface 205, a display 206, an input device 207, and a radio frequency unit 208 connected by a system bus 201. The processor 202 is a control center of the terminal apparatus 200, connects various parts of the entire terminal apparatus 200 with various interfaces and lines, and performs various functions of the terminal apparatus 200 and processes data by running or executing software programs and/or modules stored in the memory and calling data stored in the memory, thereby monitoring the terminal apparatus 200 as a whole.
The memory may be used to store a software program and various data, and specifically, the memory includes a nonvolatile storage medium 203 and an internal memory 204. The nonvolatile storage medium 203 stores an operating system 209 and a computer program 210. The internal memory 204 provides an environment for the operating system 209 and the computer program 210 in the nonvolatile storage medium 203 to run. The memory may be a high-speed random access memory, or a non-volatile memory, such as a magnetic disk storage device, a flash memory device, or other volatile solid-state storage device.
The network interface 205 is used for communicating with an external terminal through a network connection. Specifically, the network interface 205 may receive an input from an external device, or may transmit data between the terminal apparatus 200 and the external device.
The display 206 may be a liquid crystal display 206 or an electronic ink display 206. The input device 207 of the terminal device 200 may be a touch layer covered on the display screen 206, a key, a track ball or a touch pad arranged on a housing of the terminal device 200, or an external keyboard, a touch pad or a mouse.
The radio frequency unit 208 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 202; in addition, the uplink data is transmitted to the base station. Generally, the rf unit 208 includes the communication module 100, an antenna 211, a transceiver, a low noise amplifier, a duplexer, and the like. The rf unit 208 may use any communication standard or protocol, such as: GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division-Long Term Evolution), TDD-LTE (Time Division-Long Term Evolution), etc.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and embodiments of the present application, and the description of the embodiments may be used to help understand the methods and their core ideas of the present application.
Claims (9)
1. A communication module, comprising: a communication module and an antenna tuning module;
the communication module comprises a first fixed pin, a first direct current signal communication unit, a first clock signal communication unit and a first isolation unit; the antenna tuning module comprises a second direct current signal communication unit, a second clock signal communication unit and a second isolation unit;
the first direct current signal communication unit and the first clock signal communication unit are respectively connected with one end of the first isolation unit; the other end of the first isolation unit is connected with one end of the first fixed pin; the other end of the first fixed pin is connected with one end of the second isolation unit, and the other end of the second isolation unit is respectively connected with the second direct-current signal communication unit and the second clock signal communication unit;
the first direct current signal communication unit transmits direct current signals with the second direct current signal communication unit through the first isolation unit, the first fixed pin and the second isolation unit in sequence; the first clock signal communication unit transmits clock signals with the second clock signal communication unit through the first isolation unit, the first fixed pin and the second isolation unit in sequence; the first isolation unit and the second isolation unit are used for isolating the direct current signal and the clock signal.
2. The communication module of claim 1, wherein the first isolation unit comprises a first ac isolation portion and a first dc isolation portion;
the first direct current signal communication unit is connected with one end of the first alternating current isolation part, and the first clock signal communication unit is connected with one end of the first direct current isolation part; the other ends of the first alternating current isolation part and the first direct current isolation part are respectively connected with the first fixed pin.
3. The communication module of claim 2, wherein the first ac isolation portion comprises a first inductor and the first dc isolation portion comprises a first capacitor;
the first direct current signal communication unit is connected with one end of the first inductor, the first clock signal communication unit is connected with one end of the first capacitor, and the other end of the first inductor and the other end of the first capacitor are respectively connected with one end of the first fixed pin.
4. The communication module of claim 2, wherein the first ac isolation portion comprises a plurality of first inductors connected in series, and the first dc isolation portion comprises a plurality of first capacitors connected in parallel;
the first direct current signal communication unit is connected with one ends of the first inductors, the first clock signal communication unit is connected with one ends of the first capacitors, and the other ends of the first inductors and the other ends of the first capacitors are respectively connected with one ends of the first fixed pins.
5. The communication module of claim 1, wherein the second isolation unit comprises a second ac isolation portion and a second dc isolation portion;
the other end of the first fixed pin is respectively connected with one end of the second alternating current isolation part and one end of the second direct current isolation part;
the other end of the second alternating current isolation part is connected with the second direct current signal communication unit, and the other end of the second direct current isolation part is connected with the second clock signal communication unit.
6. The communication module of claim 5, wherein the second AC isolation portion comprises a second inductor and the second DC isolation portion comprises a second capacitor;
the other end of the first fixed pin is respectively connected with one end of the second inductor and one end of the second capacitor, and the other end of the second inductor is connected with the second direct-current signal communication unit; the other end of the second capacitor is connected with the second clock signal communication unit.
7. The communication module of claim 5, wherein the second AC isolation portion comprises a plurality of second inductors connected in series, and the second DC isolation portion comprises a plurality of second capacitors connected in parallel;
the other end of the first fixed pin is respectively connected with one end of the second inductors and one end of the second capacitors, and the other end of the second inductors is connected with the second direct-current signal communication unit; and the other ends of the second capacitors are connected with the second clock signal communication unit.
8. The communication module according to any one of claims 1 to 7, wherein the communication module further comprises a second fixed pin and a first data signal communication unit, and the antenna tuning module further comprises a second data signal communication unit;
the first data signal communication unit, the second fixed pin and the second data signal communication unit are connected in sequence; and the first data signal communication unit transmits data signals with the second data signal communication unit through the second fixed pin.
9. A terminal device comprising a communication module according to any one of claims 1 to 8.
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