CN109905132B - Radio frequency access and terminal - Google Patents
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- CN109905132B CN109905132B CN201910266234.3A CN201910266234A CN109905132B CN 109905132 B CN109905132 B CN 109905132B CN 201910266234 A CN201910266234 A CN 201910266234A CN 109905132 B CN109905132 B CN 109905132B
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Abstract
The invention provides a radio frequency channel and a terminal, wherein the radio frequency channel comprises: the antenna comprises a third antenna, a sixth switch for switching and selecting a communication channel of the third antenna, a first transmitting combiner filter, a first receiving shunt filter, a second power amplifier, a third power amplifier, a second radio frequency chip and a third radio frequency chip; the first transmitting combined filter and the first receiving shunt filter have the same filtering wave band. The scheme reduces the insertion loss of the radio frequency transceiving channel, the terminal transmitting power consumption and the terminal cost, improves the receiving sensitivity and reduces the occupied PCB area of the device.
Description
The invention is a divisional application of the invention with the application date of 2015, 04, 13 and the application number of 201510173777.2 and the name of 'a radio frequency channel and a terminal'.
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a radio frequency access and a terminal.
Background
In the evolution process from LTE to LTE-Advanced system, the requirement of wider spectrum will be the most important factor affecting the evolution, and therefore, a carrier aggregation technology is developed, which can aggregate a plurality of carriers into a wider spectrum and also can aggregate discontinuous spectrum fragments together. The carrier aggregation technology well meets the requirement of the frequency spectrum compatibility of LTE and LTE-Advanced systems. The multi-carrier aggregation is divided into continuous carrier aggregation and discontinuous carrier aggregation.
However, the carrier polymerization schemes in the prior art have the following disadvantages:
for carrier aggregation in frequency bands, especially in-band continuous scenarios, the transmitting and receiving radio frequency indexes generally deteriorate with the increase of carriers, for example, out-of-band emission spurious, ACLR (adjacent channel radiation power ratio) and receiving sensitivity deteriorate to different degrees, especially coexistence interference of TD-LTE B41 and B40 to 2.4GHz WiFi deteriorates;
for the inter-band carrier aggregation scene, an additional antenna body is needed, the space occupied by the antenna on the terminal is increased or a duplexer (duplexer) is additionally added, so that the cost is increased, the space occupied by the whole terminal is increased, the insertion loss of a radio frequency transceiving channel is increased, and the receiving sensitivity and the transmitting index (power and power consumption) are deteriorated;
for discontinuous carrier aggregation scenes in a frequency band, the existing scheme generally adopts two sets of same front-end radio frequency transceiving channels, so that the cost of a device is increased, the occupied area of a Printed Circuit Board (PCB) is increased, and the occupied space of an antenna is larger.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a radio frequency channel and a terminal, and solve the problems of poor radio frequency transceiving effect, high cost or large occupied space in a carrier aggregation scheme in the prior art.
In order to solve the above technical problem, an embodiment of the present invention provides a radio frequency path, including:
the antenna comprises a first antenna, a first switch for switching and selecting a communication channel of the first antenna, a first transmitting filter circuit, a first power amplifier, a first radio frequency chip and a first receiving filter circuit;
wherein the first transmit filter circuit comprises: the device comprises a plurality of transmitting full-band-pass filters, a plurality of transmitting narrow-band-pass filters and a plurality of second switches, wherein the second switches are used for switching and gating the transmitting full-band-pass filters and the transmitting narrow-band-pass filters, each transmitting full-band-pass filter corresponds to one filtering band, each transmitting narrow-band-pass filter corresponds to one filtering band, and the filtering bands of the transmitting full-band-pass filters and the transmitting narrow-band-pass filters which are connected with the same second switch are the same;
the first reception filter circuit includes: a plurality of first receiving full-band pass filters, a plurality of first receiving narrow-band pass filters and a plurality of third switches for switching and gating the first receiving full-band pass filters and the first receiving narrow-band pass filters, wherein each first receiving full-band pass filter corresponds to one filtering band, each first receiving narrow-band pass filter corresponds to one filtering band, and the filtering bands of the first receiving full-band pass filters and the first receiving narrow-band pass filters which are connected with the same third switch are the same;
a transmitting channel circuit in the first radio frequency chip transmits a first radio frequency signal to the first power amplifier, the first power amplifier amplifies the first radio frequency signal and transmits the amplified first radio frequency signal to the second switch, the second switch gates the transmitting full-band bandpass filter or the transmitting narrow-band bandpass filter, the transmitting full-band bandpass filter or the transmitting narrow-band bandpass filter performs filtering processing on the first radio frequency signal, and the first radio frequency signal after the filtering processing is transmitted to the first antenna through the first switch;
first antenna reception second radio frequency signal will second radio frequency signal passes through first switch gates extremely first full band-pass filter of receipt or first receiving narrow band-pass filter are right the second radio frequency signal carries out filtering process, and with the post-processing of filtering second radio frequency signal passes through the third switch transmits extremely in the main receiving channel circuit of first radio frequency chip.
Wherein the radio frequency path further comprises: the second antenna, a fourth switch for switching and selecting the communication channel of the second antenna and a second receiving filter circuit;
wherein the second reception filter circuit includes: a plurality of second receiving full-band pass filters, a plurality of second receiving narrow-band pass filters and a plurality of fifth switches for switching and gating the second receiving full-band pass filters and the second receiving narrow-band pass filters, wherein each receiving full-band pass filter corresponds to one filtering band, each receiving narrow-band pass filter corresponds to one filtering band, and the filtering bands of the second receiving full-band pass filters and the second receiving narrow-band pass filters which are connected with the same fifth switch are the same;
the first antenna receives a third radio frequency signal, and the third radio frequency signal passes through the fourth switch is gated to the second receives full frequency band pass filter or second and receives narrow band pass filter, and the second receives full frequency band pass filter or second and receives narrow band pass filter to the third radio frequency signal carries out filtering processing, and the third radio frequency signal after the filtering processing passes through the fifth switch and transmits to in the diversity receiving channel circuit of the first radio frequency chip.
When the terminal is in a non-carrier aggregation state, the second switch gates the transmitting full-frequency band-pass filter, and the third switch gates the receiving full-frequency band-pass filter; when the terminal is in an in-band carrier aggregation state, the second switch gates the transmitting narrow bandpass filter, and the third switch gates the receiving narrow bandpass filter.
When the terminal is in a non-carrier aggregation state, the fifth switch gates the receiving full-frequency band-pass filter; and when the terminal is in an in-band carrier aggregation state, the fifth switch gates the receiving narrow bandpass filter.
The first switch is integrated with the first transmitting filter circuit and/or the first receiving filter circuit.
The fourth switch and the second receiving filter circuit are integrally arranged.
Wherein the first switch and the fourth switch are both single-pole multi-throw switches.
The second switch, the third switch and the fifth switch are all single-pole double-throw switches.
The present invention also provides a radio frequency path comprising:
the antenna comprises a third antenna, a sixth switch for switching and selecting a communication channel of the third antenna, a first transmitting combiner filter, a first receiving shunt filter, a second power amplifier, a third power amplifier, a second radio frequency chip and a third radio frequency chip;
the first transmitting combined filter and the first receiving shunt filter have the same filtering wave band;
the third antenna receives a fourth radio frequency signal, the fourth radio frequency signal is gated to the first receiving shunt filter through the sixth switch, and the fourth radio frequency signal is a multi-band signal;
the first receiving shunt filter shunts the fourth radio-frequency signal into a first shunt radio-frequency signal and a second shunt radio-frequency signal, the first shunt radio-frequency signal and the second shunt radio-frequency signal are filtered respectively, and the first shunt radio-frequency signal and the second shunt radio-frequency signal after being filtered are transmitted to a main receiving channel circuit of the second radio-frequency chip and a first main receiving channel circuit of the third radio-frequency chip respectively;
a transmitting channel circuit of the second radio frequency chip transmits a fifth radio frequency signal to the second power amplifier, the second power amplifier amplifies the fifth radio frequency signal, and transmits the amplified fifth radio frequency signal to the first transmitting combiner filter; a first transmitting channel circuit of the third radio frequency chip transmits a sixth radio frequency signal to the third power amplifier, the third power amplifier amplifies the sixth radio frequency signal, and transmits the amplified sixth radio frequency signal to the first transmitting combiner filter; the first transmitting combination filter respectively performs filtering combination processing on the amplified fifth radio frequency signal and the amplified sixth radio frequency signal, and transmits the filtered and combined fifth radio frequency signal and the filtered and combined sixth radio frequency signal to the third antenna through the sixth switch.
The first transmitting combined filter is a transmitting double-surface acoustic wave filter or a transmitting double-band-pass integrated filter; the receiving shunt filter is a receiving double-surface acoustic wave filter or a receiving double-band-pass integrated filter.
Wherein the radio frequency path further comprises a first transmit bandpass filter and a first receive bandpass filter;
the first transmitting band-pass filter and the first receiving band-pass filter have the same filtering wave band and are different from the filtering wave bands of the first transmitting combined filter and the first receiving shunt filter;
the third antenna receives a seventh radio frequency signal, the seventh radio frequency signal is gated to the first receiving band-pass filter through the sixth switch, the first receiving band-pass filter carries out filtering processing on the seventh radio frequency signal, and the seventh radio frequency signal after the filtering processing is transmitted to a second main receiving channel circuit of the third radio frequency chip;
and a second transmitting channel circuit in the third radio frequency chip transmits an eighth radio frequency signal to the third power amplifier, the third power amplifier amplifies the eighth radio frequency signal, transmits the amplified eighth radio frequency signal to the first transmitting band-pass filter, and the first transmitting band-pass filter performs filtering processing on the eighth radio frequency signal and transmits the filtered eighth radio frequency signal to the third antenna through the sixth switch.
The sixth switch is integrally arranged with the first transmitting combination filter and/or the first receiving shunt filter and/or the first transmitting band-pass filter and/or the first receiving band-pass filter.
Wherein the radio frequency path further comprises: the fourth antenna, a seventh switch for switching and selecting the communication channel of the fourth antenna and a second receiving shunt filter;
the fourth antenna receives a ninth radio frequency signal, the ninth radio frequency signal is gated to the second receiving shunt filter through the seventh switch, and the ninth radio frequency signal is a multi-band signal;
and the second receiving shunt filter shunts the ninth radio-frequency signal into a third shunt radio-frequency signal and a fourth shunt radio-frequency signal, filters the third shunt radio-frequency signal and the fourth shunt radio-frequency signal respectively, and transmits the filtered third shunt radio-frequency signal and the filtered fourth shunt radio-frequency signal to a diversity receiving channel circuit of the second radio-frequency chip and a first diversity receiving channel circuit of the third radio-frequency chip respectively.
Wherein the radio frequency path further comprises a second receive bandpass filter;
wherein the second receiving band-pass filter is different from a filtering band of the second receiving shunt filter;
and the fourth antenna receives a tenth radio frequency signal, the tenth radio frequency signal is gated to the second receiving band-pass filter through the seventh switch, the second receiving band-pass filter carries out filtering processing on the tenth radio frequency signal, and the tenth radio frequency signal after the filtering processing is transmitted to a second diversity receiving channel circuit of the third radio frequency chip.
Wherein the seventh switch is provided integrally with the second reception shunt filter and/or the second reception bandpass filter.
Wherein the seventh switch is a single pole double throw switch.
Wherein the sixth switch is a single-pole multi-throw switch.
The present invention also provides a radio frequency path comprising:
the antenna comprises a fifth antenna, an eighth switch for switching and selecting the fifth antenna communication channel, a sixth antenna, a ninth switch for switching and selecting the sixth antenna communication channel, a seventh antenna, a tenth switch for switching and selecting the seventh antenna communication channel, an amplifying and combining filter circuit, a plurality of third receiving band-pass filters, a plurality of fourth receiving band-pass filters, a fourth radio frequency chip and a fifth radio frequency chip;
the fifth antenna receives an eleventh radio frequency signal, the eleventh radio frequency signal is gated to the third receiving band-pass filter through the eighth switch, the third receiving band-pass filter performs filtering processing on the eleventh radio frequency signal, and the eleventh radio frequency signal after the filtering processing is transmitted to a main receiving channel circuit of the fourth radio frequency chip;
a transmitting channel circuit of the fourth radio frequency chip transmits a twelfth radio frequency signal to the amplifying and combining filter circuit, a transmitting channel circuit of the fifth radio frequency chip transmits a thirteenth radio frequency signal to the amplifying and combining filter circuit, the amplifying and combining filter circuit performs amplifying, combining and filtering processing on the twelfth radio frequency signal and the thirteenth radio frequency signal, and transmits the twelfth radio frequency signal and the thirteenth radio frequency signal after the amplifying, combining and filtering processing to the sixth antenna through the ninth switch;
the seventh antenna receives a fourteenth radio frequency signal, gates the fourteenth radio frequency signal to the fourth receiving band-pass filter through the tenth switch, and the fourth receiving band-pass filter performs filtering processing on the fourteenth radio frequency signal and transmits the fourteenth radio frequency signal after the filtering processing to a main receiving channel circuit of the fifth radio frequency chip.
Wherein, the amplifying and combining filter circuit comprises: a plurality of first combiners, a fourth power amplifier and a plurality of second transmitting band-pass filters;
the first combiner combines the twelfth radio frequency signal and the thirteenth radio frequency signal, and transmits the combined twelfth radio frequency signal and thirteenth radio frequency signal to the fourth power amplifier;
the fourth power amplifier amplifies the combined twelfth radio frequency signal and the combined thirteenth radio frequency signal and transmits the amplified combined twelfth radio frequency signal and the amplified combined thirteenth radio frequency signal to the second transmitting band-pass filter;
the second transmitting band-pass filter performs filtering processing on the received twelfth radio-frequency signal and the received thirteenth radio-frequency signal, and transmits the twelfth radio-frequency signal and the thirteenth radio-frequency signal after filtering processing to the sixth antenna through the ninth switch;
and the twelfth radio frequency signal and the thirteenth radio frequency signal are same-frequency-band signals.
Wherein the ninth switch is provided integrally with at least two of the second transmitting band-pass filters.
The first combiner and the second transmitting band-pass filter are integrally arranged.
Wherein, the amplifying and combining filter circuit comprises: a fifth power amplifier, a sixth power amplifier, a plurality of second combiners and a plurality of third transmitting band-pass filters;
the fifth power amplifier amplifies the twelfth radio frequency signal and transmits the amplified twelfth radio frequency signal to the second combiner; the sixth power amplifier amplifies the thirteenth radio frequency signal and transmits the amplified thirteenth radio frequency signal to the second combiner;
the second combiner combines the amplified twelfth radio-frequency signal and the amplified thirteenth radio-frequency signal, and transmits the combined amplified twelfth radio-frequency signal and the amplified thirteenth radio-frequency signal to the third transmitting band-pass filter;
the third transmitting band-pass filter performs filtering processing on the received twelfth radio-frequency signal and the received thirteenth radio-frequency signal, and transmits the twelfth radio-frequency signal and the thirteenth radio-frequency signal after filtering processing to the sixth antenna through the ninth switch;
and the twelfth radio frequency signal and the thirteenth radio frequency signal are same-frequency-band signals.
Wherein the ninth switch is provided integrally with at least two of the third transmitting band-pass filters.
And the second combiner and the third transmitting band-pass filter are integrally arranged.
Wherein the radio frequency path further comprises: the antenna comprises an eighth antenna, an eleventh switch and a plurality of fifth receiving band-pass filters, wherein the eleventh switch is used for switching and selecting the communication channel of the eighth antenna;
the eighth antenna receives a fifteenth radio frequency signal, the fifteenth radio frequency signal is gated to the fifth receiving band-pass filter through the eleventh switch, the fifth receiving band-pass filter performs filtering processing on the fifteenth radio frequency signal, and the fifteenth radio frequency signal after the filtering processing is transmitted to a diversity receiving channel circuit of the fourth radio frequency chip.
Wherein the eighth switch, the ninth switch, the tenth switch and the eleventh switch are single-pole-three-throw switches.
Wherein the radio frequency path further comprises: the ninth antenna, a twelfth switch for switching and selecting the ninth antenna communication channel and a plurality of sixth receiving band-pass filters;
and the ninth antenna receives a sixteenth radio frequency signal, gates the sixteenth radio frequency signal to the sixth receiving band-pass filter through the twelfth switch, and the sixth receiving band-pass filter performs filtering processing on the sixteenth radio frequency signal and transmits the filtered sixteenth radio frequency signal to a diversity receiving channel circuit of the fifth radio frequency chip.
Wherein the twelfth switch is a single-pole-three-throw switch.
The present invention also provides a terminal, including: the radio frequency path described above.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the radio frequency channel is provided with the full-band-pass filter and the narrow-band-pass filter, so that the terminal can work through the narrow-band radio frequency channel when in an in-band carrier aggregation state, and the problem of poor radio frequency transceiving effect is solved; the radio frequency path reduces the insertion loss of the receiving and transmitting path and the terminal cost by adopting the transmitting combining filter and the receiving branching filter, and reduces the area of a PCB occupied by devices; the radio frequency path reduces the cost of a radio frequency front-end device and the power consumption of the whole terminal by adopting the amplifying and combining filter circuit, and reduces the area of the device occupied by a PCB and the space of the whole terminal occupied by an antenna.
Drawings
Fig. 1 is a schematic diagram of an in-band contiguous carrier aggregation radio frequency path according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an inter-band carrier aggregation radio frequency path according to an embodiment of the present invention;
fig. 3 is a first schematic diagram illustrating an intra-band discontinuous carrier aggregation rf path structure according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a second structure of an intra-band discontinuous carrier aggregation radio frequency path according to an embodiment of the present invention;
fig. 5 is a third schematic diagram of an intra-band discontinuous carrier aggregation radio frequency path structure according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Aiming at the problems of poor transceiving effect, higher cost or larger occupied space in the carrier aggregation scheme in the prior art, the invention provides the following technical schemes, which are suitable for LTE multimode terminals:
the first scheme is as follows: for in-band contiguous carrier aggregation scenarios
The present invention provides a radio frequency path, as shown in fig. 1, including:
the antenna comprises a first antenna, a first switch for switching and selecting a communication channel of the first antenna, a first transmitting filter circuit, a first power amplifier, a first radio frequency chip and a first receiving filter circuit;
wherein the first transmit filter circuit comprises: the device comprises a plurality of transmitting full-band-pass filters, a plurality of transmitting narrow-band-pass filters and a plurality of second switches, wherein the second switches are used for switching and gating the transmitting full-band-pass filters and the transmitting narrow-band-pass filters, each transmitting full-band-pass filter corresponds to one filtering band, each transmitting narrow-band-pass filter corresponds to one filtering band, and the filtering bands of the transmitting full-band-pass filters and the transmitting narrow-band-pass filters which are connected with the same second switch are the same;
the first reception filter circuit includes: a plurality of first receiving full-band pass filters, a plurality of first receiving narrow-band pass filters and a plurality of third switches for switching and gating the first receiving full-band pass filters and the first receiving narrow-band pass filters, wherein each first receiving full-band pass filter corresponds to one filtering band, each first receiving narrow-band pass filter corresponds to one filtering band, and the filtering bands of the first receiving full-band pass filters and the first receiving narrow-band pass filters which are connected with the same third switch are the same;
a transmitting channel circuit in the first radio frequency chip transmits a first radio frequency signal to the first power amplifier, the first power amplifier amplifies the first radio frequency signal and transmits the amplified first radio frequency signal to the second switch, the second switch gates the transmitting full-band bandpass filter or the transmitting narrow-band bandpass filter, the transmitting full-band bandpass filter or the transmitting narrow-band bandpass filter performs filtering processing on the first radio frequency signal, and the first radio frequency signal after the filtering processing is transmitted to the first antenna through the first switch;
first antenna reception second radio frequency signal will second radio frequency signal passes through first switch gates extremely first full band-pass filter of receipt or first receiving narrow band-pass filter are right the second radio frequency signal carries out filtering process, and with the post-processing of filtering second radio frequency signal passes through the third switch transmits extremely in the main receiving channel circuit of first radio frequency chip.
The radio frequency channel provided by the invention can meet the requirements of various scenes by arranging the full-band-pass filter and the narrow-band-pass filter so that the full-band radio frequency channel can be passed when the terminal is in a non-carrier aggregation state; when the terminal is in an in-band carrier aggregation state, the terminal can work through a narrow-band radio frequency channel, the problem of poor radio frequency transceiving effect is solved, all radio frequency indexes of the narrow-band pass filter are superior to a full-band pass filter in the same frequency band, the deterioration of the transmitted radio frequency indexes along with the increase of the number of carriers (for example, improvement of out-of-band transmission stray, ACLR and reduction of transmission power consumption) can be improved, meanwhile, the receiving sensitivity can be improved, and the coexistence mutual interference of TD-LTE B41/B40 on 2.4GHz WiFi is improved.
Wherein, the bandwidth of the narrow band-pass filter can be 10MHz or 20MHz or 40 MHz; the "full band" in fig. 1 represents a full band bandpass filter and the "narrow band" represents a narrow band bandpass filter.
In order to ensure the communication quality under the use scenario of the 4G network, as shown in fig. 1, the radio frequency path provided by the present invention further includes: the second antenna, a fourth switch for switching and selecting the communication channel of the second antenna and a second receiving filter circuit;
wherein the second reception filter circuit includes: a plurality of second receiving full-band pass filters, a plurality of second receiving narrow-band pass filters and a plurality of fifth switches for switching and gating the second receiving full-band pass filters and the second receiving narrow-band pass filters, wherein each receiving full-band pass filter corresponds to one filtering band, each receiving narrow-band pass filter corresponds to one filtering band, and the filtering bands of the second receiving full-band pass filters and the second receiving narrow-band pass filters which are connected with the same fifth switch are the same;
the first antenna receives a third radio frequency signal, and the third radio frequency signal passes through the fourth switch is gated to the second receives full frequency band pass filter or second and receives narrow band pass filter, and the second receives full frequency band pass filter or second and receives narrow band pass filter to the third radio frequency signal carries out filtering processing, and the third radio frequency signal after the filtering processing passes through the fifth switch and transmits to in the diversity receiving channel circuit of the first radio frequency chip.
In order to have a better using effect, when the terminal is in a non-carrier aggregation state, the second switch gates the transmitting full-band-pass filter, and the third switch gates the receiving full-band-pass filter; when the terminal is in an in-band carrier aggregation state, the second switch gates the transmitting narrow bandpass filter, and the third switch gates the receiving narrow bandpass filter.
Similarly, when the terminal is in a non-carrier aggregation state, the fifth switch gates the receiving full-band bandpass filter; and when the terminal is in an in-band carrier aggregation state, the fifth switch gates the receiving narrow bandpass filter.
In order to have a higher integration level, the first switch in the radio frequency path provided by the present invention may be integrally arranged with the first transmitting filter circuit and/or the first receiving filter circuit, and may also be integrally arranged with the transmitting full-band bandpass filter and the transmitting narrow-band bandpass filter in any same filtering band in the first transmitting filter circuit, and/or the first receiving full-band bandpass filter and the first receiving narrow-band bandpass filter in any same filtering band in the first receiving filter circuit, where this application merely exemplifies a case that they can be integrally arranged, and does not limit a specific combination case of integrally arranged;
the fourth switch and the second receive the integrative setting of filter circuit, also can receive the integrative setting of full band-pass filter and the second receipt narrow band-pass filter with the second of arbitrary same filtering wave band in the filter circuit with the second, but this application is the circumstances that the illustration can integrative set up here to do not limit the concrete combination condition of integrative setting.
Specifically, the first switch and the fourth switch are both single-pole multi-throw switches; the second switch, the third switch and the fifth switch are all single-pole double-throw switches.
The number of the full-band bandpass filters and the narrow-band bandpass filters in each radio frequency signal path is equal, and the filtering wave bands are the same, and the filtering wave bands can be selected to be wave bands 39, wave bands 40 or wave bands 41.
It should be noted that, when the radio frequency signal transmission reaches the switches (the first switch, the second switch, the third switch, the fourth switch, and the fifth switch), the signal needs to be transmitted to the corresponding contacts of the switches, and then the switches can perform corresponding information transmission; when the radio frequency signal is transmitted to the antenna (the first antenna and the second antenna) by the switch (the first switch and the fourth switch), the antenna transmits the radio frequency signal; when the radio frequency signal is transmitted to the first radio frequency chip, the first radio frequency chip modulates the radio frequency signal into an analog baseband signal and transmits related information.
In the scheme for the in-band continuous carrier aggregation scene, a narrow band-pass filter is adopted in a narrow band radio frequency path, and the in-band insertion loss index and the out-of-band rejection index of the narrow band-pass filter are superior to those of a wide band-pass filter adopted in the prior art; the narrow band-pass filter with low in-band insertion loss and high out-of-band rejection is placed in a transmitting path, so that the out-of-band spurious emission can be reduced, the ACLR can be improved, and the transmitting power consumption can be reduced; the insertion loss of a receiving path can be reduced by placing the narrow band-pass filter in the receiving path, the receiving sensitivity can be improved, and the blocking and stray interference from other systems of adjacent frequencies can be reduced by the high out-of-band rejection degree of the narrow band-pass filter; according to the scheme, the switching between the in-band continuous carrier aggregation use scene and the non-carrier aggregation use scene is realized by arranging the full-band-pass filter (full-band-pass filter) and the narrow-band pass filter.
The second scheme is as follows: for inter-band carrier aggregation scenarios
The present invention provides a radio frequency path, as shown in fig. 2, including:
the antenna comprises a third antenna, a sixth switch for switching and selecting a communication channel of the third antenna, a first transmitting combiner filter, a first receiving shunt filter, a second power amplifier, a third power amplifier, a second radio frequency chip and a third radio frequency chip;
the first transmitting combined filter and the first receiving shunt filter have the same filtering wave band;
the third antenna receives a fourth radio frequency signal, the fourth radio frequency signal is gated to the first receiving shunt filter through the sixth switch, and the fourth radio frequency signal is a multi-band signal;
the first receiving shunt filter shunts the fourth radio-frequency signal into a first shunt radio-frequency signal and a second shunt radio-frequency signal, the first shunt radio-frequency signal and the second shunt radio-frequency signal are filtered respectively, and the first shunt radio-frequency signal and the second shunt radio-frequency signal after being filtered are transmitted to a main receiving channel circuit of the second radio-frequency chip and a first main receiving channel circuit of the third radio-frequency chip respectively;
a transmitting channel circuit of the second radio frequency chip transmits a fifth radio frequency signal to the second power amplifier, the second power amplifier amplifies the fifth radio frequency signal, and transmits the amplified fifth radio frequency signal to the first transmitting combiner filter; a first transmitting channel circuit of the third radio frequency chip transmits a sixth radio frequency signal to the third power amplifier, the third power amplifier amplifies the sixth radio frequency signal, and transmits the amplified sixth radio frequency signal to the first transmitting combiner filter; the first transmitting combination filter respectively performs filtering combination processing on the amplified fifth radio frequency signal and the amplified sixth radio frequency signal, and transmits the filtered and combined fifth radio frequency signal and the filtered and combined sixth radio frequency signal to the third antenna through the sixth switch.
The first transmitting combining filter is used for filtering, combining and transmitting the received two paths of radio frequency signals; the first receiving shunt filter is used for shunting a received path of radio frequency signal, filtering the signal respectively and transmitting the signal; the processing processes of the first transmitting combined filter and the first receiving shunt filter on the radio frequency signals are mutually inverse processes;
the first transmitting combiner filter and the first receiving shunt filter are internally integrated with band-pass filters of two frequency bands, the duplexer has the characteristic of a duplexer, and the ports of the two frequency bands have good isolation (more than 25 dB).
The radio frequency channel provided by the invention adopts the transmitting combined filter and the receiving shunt filter to realize the inter-band carrier aggregation radio frequency front end channel, so that the insertion loss of the radio frequency receiving and transmitting channel, the terminal transmitting power consumption and the terminal cost are reduced, the receiving sensitivity is improved, and the PCB area occupied by devices is reduced.
Specifically, the first transmit combiner filter is a transmit Dual surface acoustic wave filter (Dual-SAW filter) or a transmit Dual bandpass integrated filter; the receiving shunt filter is a receiving double surface acoustic wave filter (Dual-SAW filter) or a receiving double band-pass integrated filter.
The receiving in-band insertion loss of the Dual-SAW filter is lower than the insertion loss of the band-pass filter + Diplexer in the existing scheme; the PCB area occupied by the Dual-SAW filter is smaller than the PCB area occupied by the two band-pass filters plus the Diplexer; the Dual-SAW filter price is less than the total price of two band pass filters + Diplexer.
Further, as shown in fig. 2, the radio frequency path further includes a first transmitting bandpass filter and a first receiving bandpass filter;
the first transmitting band-pass filter and the first receiving band-pass filter have the same filtering wave band and are different from the filtering wave bands of the first transmitting combined filter and the first receiving shunt filter;
the third antenna receives a seventh radio frequency signal, the seventh radio frequency signal is gated to the first receiving band-pass filter through the sixth switch, the first receiving band-pass filter carries out filtering processing on the seventh radio frequency signal, and the seventh radio frequency signal after the filtering processing is transmitted to a second main receiving channel circuit of the third radio frequency chip;
and a second transmitting channel circuit in the third radio frequency chip transmits an eighth radio frequency signal to the third power amplifier, the third power amplifier amplifies the eighth radio frequency signal, transmits the amplified eighth radio frequency signal to the first transmitting band-pass filter, and the first transmitting band-pass filter performs filtering processing on the eighth radio frequency signal and transmits the filtered eighth radio frequency signal to the third antenna through the sixth switch.
In order to achieve a higher degree of integration, the sixth switch is provided integrally with the first transmit combining filter and/or the first receive splitting filter and/or the first transmit bandpass filter and/or the first receive bandpass filter.
In order to ensure the communication quality in the 4G network usage scenario, as shown in fig. 2, the rf path further includes: the fourth antenna, a seventh switch for switching and selecting the communication channel of the fourth antenna and a second receiving shunt filter;
the fourth antenna receives a ninth radio frequency signal, the ninth radio frequency signal is gated to the second receiving shunt filter through the seventh switch, and the ninth radio frequency signal is a multi-band signal;
and the second receiving shunt filter shunts the ninth radio-frequency signal into a third shunt radio-frequency signal and a fourth shunt radio-frequency signal, filters the third shunt radio-frequency signal and the fourth shunt radio-frequency signal respectively, and transmits the filtered third shunt radio-frequency signal and the filtered fourth shunt radio-frequency signal to a diversity receiving channel circuit of the second radio-frequency chip and a first diversity receiving channel circuit of the third radio-frequency chip respectively.
Further, as shown in fig. 2, the rf path further includes a second receiving band-pass filter;
wherein the second receiving band-pass filter is different from a filtering band of the second receiving shunt filter;
and the fourth antenna receives a tenth radio frequency signal, the tenth radio frequency signal is gated to the second receiving band-pass filter through the seventh switch, the second receiving band-pass filter carries out filtering processing on the tenth radio frequency signal, and the tenth radio frequency signal after the filtering processing is transmitted to a second diversity receiving channel circuit of the third radio frequency chip.
In order to achieve a higher degree of integration, the seventh switch is provided integrally with the second reception shunt filter and/or the second reception bandpass filter.
Specifically, the seventh switch is a single-pole double-throw switch; the sixth switch is a single-pole multi-throw switch.
The filter bands of the transmitting branching filter and the transmitting band-pass filter are not consistent, the filter bands processed by the receiving branching filter and the receiving band-pass filter are also not consistent, the filter bands can be selected from a band 39, a band 40, a band 41, and the like, and the examples of the transmitting branching filter and the transmitting band-pass filter are as follows:
the filtering bands of the transmit shunt filter may be bands 39 and 40, bands 40 and 41, or bands 39 and 41, and the filtering bands of the transmit band pass filter may correspond to bands 41, bands 39, or bands 40.
It should be noted that, when the radio frequency signal transmission reaches the switches (the sixth switch and the seventh switch), the signal needs to be transmitted to the corresponding contacts in the switches, and then the switches can perform corresponding information transmission; when the radio-frequency signal is transmitted to the antenna (the third antenna and the fourth antenna) by the switch (the sixth switch and the seventh switch), the antenna transmits the radio-frequency signal; when the radio frequency signal is transmitted to the radio frequency chips (the second radio frequency chip and the third radio frequency chip), the radio frequency chips (the second radio frequency chip and the third radio frequency chip) modulate the radio frequency signal into an analog baseband signal and transmit related information.
In the third scheme: for in-band discontinuous carrier aggregation scenarios
The present invention provides a radio frequency path, as shown in fig. 3 to 5, including:
the antenna comprises a fifth antenna, an eighth switch for switching and selecting the fifth antenna communication channel, a sixth antenna, a ninth switch for switching and selecting the sixth antenna communication channel, a seventh antenna, a tenth switch for switching and selecting the seventh antenna communication channel, an amplifying and combining filter circuit, a plurality of third receiving band-pass filters, a plurality of fourth receiving band-pass filters, a fourth radio frequency chip and a fifth radio frequency chip;
the fifth antenna receives an eleventh radio frequency signal, the eleventh radio frequency signal is gated to the third receiving band-pass filter through the eighth switch, the third receiving band-pass filter performs filtering processing on the eleventh radio frequency signal, and the eleventh radio frequency signal after the filtering processing is transmitted to a main receiving channel circuit of the fourth radio frequency chip;
a transmitting channel circuit of the fourth radio frequency chip transmits a twelfth radio frequency signal to the amplifying and combining filter circuit, a transmitting channel circuit of the fifth radio frequency chip transmits a thirteenth radio frequency signal to the amplifying and combining filter circuit, the amplifying and combining filter circuit performs amplifying, combining and filtering processing on the twelfth radio frequency signal and the thirteenth radio frequency signal, and transmits the twelfth radio frequency signal and the thirteenth radio frequency signal after the amplifying, combining and filtering processing to the sixth antenna through the ninth switch;
the seventh antenna receives a fourteenth radio frequency signal, gates the fourteenth radio frequency signal to the fourth receiving band-pass filter through the tenth switch, and the fourth receiving band-pass filter performs filtering processing on the fourteenth radio frequency signal and transmits the fourteenth radio frequency signal after the filtering processing to a main receiving channel circuit of the fifth radio frequency chip.
The radio frequency channel provided by the invention adopts the amplifying and combining filter circuit to combine two same-frequency channels or different-frequency channels at the radio frequency front end of the transmitting channel into one channel to realize the in-band discontinuous carrier aggregation, thereby reducing the cost of the radio frequency front end device and the power consumption of the whole terminal, and reducing the area of the device occupied by a PCB and the space of the antenna occupied by the whole terminal.
Aiming at the practical use condition of the amplifying and combining filter circuit, the invention provides two schemes:
in a first aspect, as shown in fig. 3, the amplifying and combining filter circuit includes: a plurality of first combiners, a fourth power amplifier and a plurality of second transmitting band-pass filters;
the first combiner combines the twelfth radio frequency signal and the thirteenth radio frequency signal, and transmits the combined twelfth radio frequency signal and thirteenth radio frequency signal to the fourth power amplifier;
the fourth power amplifier amplifies the combined twelfth radio frequency signal and the combined thirteenth radio frequency signal and transmits the amplified combined twelfth radio frequency signal and the amplified combined thirteenth radio frequency signal to the second transmitting band-pass filter;
the second transmitting band-pass filter performs filtering processing on the received twelfth radio-frequency signal and the received thirteenth radio-frequency signal, and transmits the twelfth radio-frequency signal and the thirteenth radio-frequency signal after filtering processing to the sixth antenna through the ninth switch;
and the twelfth radio frequency signal and the thirteenth radio frequency signal are same-frequency-band signals.
The amplifying combining filter circuit in the scheme is provided with a combiner at the output port of the radio frequency chip, and combines two same-frequency output radio frequency paths into a same path, thereby saving a power amplifier and a transmitting band-pass filter, reducing an antenna switch port and saving an antenna body.
In order to achieve higher integration, in the present invention, the ninth switch is integrated with at least two of the second transmitting bandpass filters; the first combiner and the second transmitting band-pass filter are integrally arranged. Preferably, a first combiner and a second transmitting band-pass filter are integrally arranged, and in this application, the specific situation of the integral arrangement is not limited, and may be any combination. The two paths of radio frequency signals combined by the first combiner have the same wave band, which may be a wave band 39, a wave band 40, or a wave band 41, and the filtering wave band of the second transmitting band-pass filter may also correspond to the wave band 39, the wave band 40, or the wave band 41.
In a second scheme, as shown in fig. 4, the amplifying and combining filter circuit includes: a fifth power amplifier, a sixth power amplifier, a plurality of second combiners and a plurality of third transmitting band-pass filters;
the fifth power amplifier amplifies the twelfth radio frequency signal and transmits the amplified twelfth radio frequency signal to the second combiner; the sixth power amplifier amplifies the thirteenth radio frequency signal and transmits the amplified thirteenth radio frequency signal to the second combiner;
the second combiner combines the amplified twelfth radio-frequency signal and the amplified thirteenth radio-frequency signal, and transmits the combined amplified twelfth radio-frequency signal and the amplified thirteenth radio-frequency signal to the third transmitting band-pass filter;
the third transmitting band-pass filter performs filtering processing on the received twelfth radio-frequency signal and the received thirteenth radio-frequency signal, and transmits the twelfth radio-frequency signal and the thirteenth radio-frequency signal after filtering processing to the sixth antenna through the ninth switch;
and the twelfth radio frequency signal and the thirteenth radio frequency signal are same-frequency-band signals.
The amplifying and combining filter circuit in the scheme is characterized in that a combiner is arranged at two same-frequency power amplifier output ports, two same-frequency output radio frequency front-end paths are combined into one path, a transmitting band-pass filter is saved, an antenna switch port is reduced, and an antenna body is saved.
In order to achieve higher integration, in the present invention, the ninth switch is integrated with at least two of the third transmitting bandpass filters; the second combiner and the third transmitting band-pass filter are integrally arranged. Preferably, a second combiner is integrated with a third transmitting bandpass filter, as shown in fig. 5, in this application, the specific situation of the integrated arrangement is not limited, and may be any combination, and the scheme shown in fig. 5 is only an example.
The two paths of radio frequency signals combined by the second combiner have the same wave band, which may be a wave band 39, a wave band 40, or a wave band 41, and the filter wave band of the third transmitting band-pass filter may also correspond to the wave band 39, the wave band 40, or the wave band 41.
In order to ensure the communication quality in the 4G network usage scenario, as shown in fig. 3 to 5, the rf path further includes: the antenna comprises an eighth antenna, an eleventh switch and a plurality of fifth receiving band-pass filters, wherein the eleventh switch is used for switching and selecting the communication channel of the eighth antenna;
the eighth antenna receives a fifteenth radio frequency signal, the fifteenth radio frequency signal is gated to the fifth receiving band-pass filter through the eleventh switch, the fifth receiving band-pass filter performs filtering processing on the fifteenth radio frequency signal, and the fifteenth radio frequency signal after the filtering processing is transmitted to a diversity receiving channel circuit of the fourth radio frequency chip.
Wherein the eighth switch, the ninth switch, the tenth switch and the eleventh switch are single-pole-three-throw switches.
Further, as shown in fig. 3 to 5, the rf path further includes: the ninth antenna, a twelfth switch for switching and selecting the ninth antenna communication channel and a plurality of sixth receiving band-pass filters;
and the ninth antenna receives a sixteenth radio frequency signal, gates the sixteenth radio frequency signal to the sixth receiving band-pass filter through the twelfth switch, and the sixth receiving band-pass filter performs filtering processing on the sixteenth radio frequency signal and transmits the filtered sixteenth radio frequency signal to a diversity receiving channel circuit of the fifth radio frequency chip.
Wherein the twelfth switch is a single-pole-three-throw switch.
When the radio frequency signal transmission reaches the switches (the eighth switch, the ninth switch, the tenth switch, the eleventh switch and the twelfth switch), the signal is required to be transmitted to the corresponding contact points in the switches, and then the switches can transmit corresponding information; when the radio-frequency signal is transmitted to the antenna (fifth antenna, sixth antenna, seventh antenna, eighth antenna, ninth antenna) by the switch (eighth switch, ninth switch, tenth switch, eleventh switch, twelfth switch), the antenna transmits the radio-frequency signal; when the radio frequency signal is transmitted to the radio frequency chips (the fourth radio frequency chip and the fifth radio frequency chip), the radio frequency chips (the fourth radio frequency chip and the fifth radio frequency chip) modulate the radio frequency signal into an analog baseband signal, and transmit related information.
For the specific use condition of the amplifying and filtering circuit, the purpose of information transmission may also be achieved by using any combination of the combiner (the first combiner, the second combiner) and the transmitting bandpass filter (the second transmitting bandpass filter, the third transmitting bandpass filter), which is not limited herein, and the two schemes given in this application are only examples.
In the present application, except for the radio frequency signal limited to a multi-band signal, the other radio frequency signals are single-band signals; in the attached drawings, a TD-LTE/FDD-LTE/TD-SCDMA/WCDMA/GSM multimode radio frequency transceiver chip refers to a multimode radio frequency transceiver chip which can be applied to a 4G network, a 3G network and a 2G network of various systems, wherein the TD-LTE/FDD-LTE refers to two systems of 4G, the WCDMA/TD-SCDMA refers to two systems of 3G, broadband code division multiple access and time division synchronous code division multiple access, and the GSM refers to a global cellular mobile communication system, namely commonly known as 2G; the network system that the multimode radio frequency transceiver chip can apply in the application is only an example and is not limited; TD-LTE Tx refers to a TD-LTE transmitting path, TD-LTE PRx refers to a TD-LTE main receiving path, TD-LTE DRx refers to a TD-LTE diversity receiving path, and PA refers to a power amplifier.
In summary, the solutions provided by the present application for different carrier aggregation situations respectively solve the following problems: the problems of transmitting each index deviation of the carrier aggregation scheme in the frequency band and mutual interference with 2.4GHz WiFi are solved; the problem that devices need to be additionally added at the front end of a radio frequency circuit of the inter-frequency-band carrier aggregation scheme and the radio frequency transceiving index deviation exists; the cost of the front-end device of the radio frequency circuit of the inter-frequency band carrier aggregation scheme is increased, the occupied area of the PCB by the device is large, and the occupied space of the antenna is large.
In order to solve the above technical problem, the present invention further provides a terminal, including: the radio frequency path described above.
It should be noted that the implementation embodiments of the radio frequency path are all applicable to the embodiment of the terminal, and the same technical effect can be achieved.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (12)
1. A radio frequency path, comprising:
the antenna comprises a fifth antenna, an eighth switch for switching and selecting the fifth antenna communication channel, a sixth antenna, a ninth switch for switching and selecting the sixth antenna communication channel, a seventh antenna, a tenth switch for switching and selecting the seventh antenna communication channel, an amplifying and combining filter circuit, a plurality of third receiving band-pass filters, a plurality of fourth receiving band-pass filters, a fourth radio frequency chip and a fifth radio frequency chip;
the fifth antenna receives an eleventh radio frequency signal, the eleventh radio frequency signal is gated to the third receiving band-pass filter through the eighth switch, the third receiving band-pass filter performs filtering processing on the eleventh radio frequency signal, and the eleventh radio frequency signal after the filtering processing is transmitted to a main receiving channel circuit of the fourth radio frequency chip;
the radio frequency channel combines two same-frequency channels or different-frequency channels at the front end of the radio frequency of a transmitting channel into one channel by adopting an amplifying combining filter circuit to realize in-band discontinuous carrier aggregation, wherein a transmitting channel circuit of the fourth radio frequency chip transmits a twelfth radio frequency signal to the amplifying combining filter circuit, a transmitting channel circuit of the fifth radio frequency chip transmits a thirteenth radio frequency signal to the amplifying combining filter circuit, the amplifying combining filter circuit performs amplifying combining filtering processing on the twelfth radio frequency signal and the thirteenth radio frequency signal, and transmits the twelfth radio frequency signal and the thirteenth radio frequency signal after the amplifying combining filtering processing to the sixth antenna through the ninth switch;
the seventh antenna receives a fourteenth radio frequency signal, gates the fourteenth radio frequency signal to the fourth receiving band-pass filter through the tenth switch, and the fourth receiving band-pass filter performs filtering processing on the fourteenth radio frequency signal and transmits the fourteenth radio frequency signal after the filtering processing to a main receiving channel circuit of the fifth radio frequency chip.
2. The radio frequency path of claim 1, wherein the amplifying combining filter circuit comprises: a plurality of first combiners, a fourth power amplifier and a plurality of second transmitting band-pass filters;
the first combiner combines the twelfth radio frequency signal and the thirteenth radio frequency signal, and transmits the combined twelfth radio frequency signal and thirteenth radio frequency signal to the fourth power amplifier;
the fourth power amplifier amplifies the combined twelfth radio frequency signal and the combined thirteenth radio frequency signal and transmits the amplified combined twelfth radio frequency signal and the amplified combined thirteenth radio frequency signal to the second transmitting band-pass filter;
the second transmitting band-pass filter performs filtering processing on the received twelfth radio-frequency signal and the received thirteenth radio-frequency signal, and transmits the twelfth radio-frequency signal and the thirteenth radio-frequency signal after filtering processing to the sixth antenna through the ninth switch;
and the twelfth radio frequency signal and the thirteenth radio frequency signal are same-frequency-band signals.
3. The radio frequency path of claim 2, wherein the ninth switch is integrally disposed with at least two of the second transmit bandpass filters.
4. The radio frequency path of claim 2, wherein the first combiner is integral with a second transmit bandpass filter.
5. The radio frequency path of claim 1, wherein the amplifying combining filter circuit comprises: a fifth power amplifier, a sixth power amplifier, a plurality of second combiners and a plurality of third transmitting band-pass filters;
the fifth power amplifier amplifies the twelfth radio frequency signal and transmits the amplified twelfth radio frequency signal to the second combiner; the sixth power amplifier amplifies the thirteenth radio frequency signal and transmits the amplified thirteenth radio frequency signal to the second combiner;
the second combiner combines the amplified twelfth radio-frequency signal and the amplified thirteenth radio-frequency signal, and transmits the combined amplified twelfth radio-frequency signal and the amplified thirteenth radio-frequency signal to the third transmitting band-pass filter;
the third transmitting band-pass filter performs filtering processing on the received twelfth radio-frequency signal and the received thirteenth radio-frequency signal, and transmits the twelfth radio-frequency signal and the thirteenth radio-frequency signal after filtering processing to the sixth antenna through the ninth switch;
and the twelfth radio frequency signal and the thirteenth radio frequency signal are same-frequency-band signals.
6. The radio frequency path of claim 5, wherein the ninth switch is integral with at least two of the third transmit bandpass filters.
7. The radio frequency path of claim 5, wherein the second combiner is integral with a third transmit bandpass filter.
8. The radio frequency path of claim 1, further comprising: the antenna comprises an eighth antenna, an eleventh switch and a plurality of fifth receiving band-pass filters, wherein the eleventh switch is used for switching and selecting the communication channel of the eighth antenna;
the eighth antenna receives a fifteenth radio frequency signal, the fifteenth radio frequency signal is gated to the fifth receiving band-pass filter through the eleventh switch, the fifth receiving band-pass filter performs filtering processing on the fifteenth radio frequency signal, and the fifteenth radio frequency signal after the filtering processing is transmitted to a diversity receiving channel circuit of the fourth radio frequency chip.
9. The radio frequency path of claim 8, wherein the eighth switch, the ninth switch, the tenth switch, and the eleventh switch are single pole, triple throw switches.
10. The radio frequency path as claimed in claim 1 or claim 8, further comprising: the ninth antenna, a twelfth switch for switching and selecting the ninth antenna communication channel and a plurality of sixth receiving band-pass filters;
and the ninth antenna receives a sixteenth radio frequency signal, gates the sixteenth radio frequency signal to the sixth receiving band-pass filter through the twelfth switch, and the sixth receiving band-pass filter performs filtering processing on the sixteenth radio frequency signal and transmits the filtered sixteenth radio frequency signal to a diversity receiving channel circuit of the fifth radio frequency chip.
11. The radio frequency path of claim 10, wherein the twelfth switch is a single pole, triple throw switch.
12. A terminal, comprising: the radio frequency access of any one of claim 1 through claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266234.3A CN109905132B (en) | 2015-04-13 | 2015-04-13 | Radio frequency access and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266234.3A CN109905132B (en) | 2015-04-13 | 2015-04-13 | Radio frequency access and terminal |
| CN201510173777.2A CN106160775B (en) | 2015-04-13 | 2015-04-13 | A kind of radio frequency path and terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510173777.2A Division CN106160775B (en) | 2015-04-13 | 2015-04-13 | A kind of radio frequency path and terminal |
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| CN109905132A CN109905132A (en) | 2019-06-18 |
| CN109905132B true CN109905132B (en) | 2021-01-26 |
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| CN201510173777.2A Active CN106160775B (en) | 2015-04-13 | 2015-04-13 | A kind of radio frequency path and terminal |
| CN201910266234.3A Active CN109905132B (en) | 2015-04-13 | 2015-04-13 | Radio frequency access and terminal |
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| 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 |
| CN107124190B (en) * | 2017-05-10 | 2021-05-25 | Oppo广东移动通信有限公司 | Radio frequency circuit switch chip, radio frequency circuit, antenna device and electronic equipment |
| CN107196668B (en) * | 2017-06-19 | 2020-11-13 | Oppo广东移动通信有限公司 | Radio frequency circuit switch chip, radio frequency circuit, antenna device and electronic equipment |
| CN108365860B (en) * | 2018-01-10 | 2020-05-12 | 西安易朴通讯技术有限公司 | Terminal equipment |
| CN109873664B (en) | 2019-03-22 | 2021-01-08 | 维沃移动通信有限公司 | Radio frequency front-end circuit and mobile terminal |
| CN110708081B (en) * | 2019-04-26 | 2024-03-19 | 中富通集团股份有限公司 | Large-bandwidth wireless communication equipment for aggregating dual carriers |
| US10601451B1 (en) * | 2019-07-02 | 2020-03-24 | Motorola Mobility Llc | Low-cost method for selectively reducing switch loss |
| CN110601732B (en) * | 2019-09-20 | 2021-07-30 | 国脉科技股份有限公司 | Optical fiber distribution high-frequency intelligent double-output system |
| CN110971262B (en) * | 2019-11-29 | 2021-09-28 | 惠州Tcl移动通信有限公司 | Radio frequency circuit, antenna device and mobile terminal |
| CN111478709B (en) * | 2020-04-03 | 2021-11-16 | 惠州Tcl移动通信有限公司 | Carrier aggregation circuit and mobile terminal |
| CN114124112B (en) * | 2020-08-27 | 2023-03-28 | 华为技术有限公司 | Radio frequency circuit for transmitting multi-frequency-band signals |
| CN114650066B (en) * | 2020-12-21 | 2023-05-05 | 荣耀终端有限公司 | Wireless communication system, method, device and chip |
| CN112751584B (en) * | 2020-12-29 | 2023-07-25 | 深圳市锐尔觅移动通信有限公司 | Switch, radio frequency circuit and terminal equipment |
| WO2022160313A1 (en) * | 2021-01-30 | 2022-08-04 | 华为技术有限公司 | Communication apparatus |
| CN113055145A (en) * | 2021-03-08 | 2021-06-29 | 西安兆格电子信息技术有限公司 | Design method for realizing multi-carrier aggregation |
| CN113965239B (en) * | 2021-12-06 | 2024-04-26 | 青岛歌尔智能传感器有限公司 | Radio frequency signal transmission control method and device and radio frequency system |
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Also Published As
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| CN106160775B (en) | 2019-05-14 |
| CN106160775A (en) | 2016-11-23 |
| CN109905132A (en) | 2019-06-18 |
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