CN114172529B - Asymmetrical receiving and transmitting device and method suitable for millimeter wave mobile communication system - Google Patents
Asymmetrical receiving and transmitting device and method suitable for millimeter wave mobile communication system Download PDFInfo
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- CN114172529B CN114172529B CN202111514761.5A CN202111514761A CN114172529B CN 114172529 B CN114172529 B CN 114172529B CN 202111514761 A CN202111514761 A CN 202111514761A CN 114172529 B CN114172529 B CN 114172529B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3805—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving with built-in auxiliary receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2615—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid frequency-time division multiple access [FDMA-TDMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2621—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using frequency division multiple access [FDMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a transmitting-receiving asymmetric device and a method suitable for a millimeter wave mobile communication system. The invention ensures that the millimeter wave communication system has better scene adaptability in the aspects of expanding coverage, improving user perception rate and enhancing service interaction real-time performance by introducing an additional receiving unit on the basis of a conventional receiving and sending unit, and obviously improves the system.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a transmitting-receiving asymmetric device and a method suitable for a millimeter wave mobile communication system.
Background
5G establishes that millimeter waves are used as an applicable frequency band, the millimeter waves have the characteristics of large bandwidth, small physical size of an antenna, high antenna gain and the like, and theoretically, better customer bandwidth experience can be provided. But practical deployment faces many problems, and millimeter wave uplink coverage limitation is one of the most outstanding problems.
Phased arrays are commonly adopted on both sides of a Base Station (BS) and a terminal (UE) of a millimeter wave communication system, the BS and the UE respectively serve as Uplink (UL) and Downlink (DL) receiving points, a signal difference inherent to an uplink link and a downlink link is defined as DL _ UL GAP, the size of the DL _ UL GAP is DL _ UL GAP = BS _ TRP-UE _ TRP, wherein BS _ TRP and UE _ TRP are Total transmit Power (TRP) summarized by all transmit links of the base station and the terminal, and DL _ UL GAP =25dB for 23dBm EIRP (equivalent omnidirectional Radiation Power), 10dBm TRP, 4-element phased array UE and 65dBm EIRP, 35dBm TRP, and BS millimeter wave communication system with antenna gain of 30dB, so that the inherent signal difference of the uplink and the downlink is very large. In the actual operation process, such an uplink and downlink GAP, i.e. DL _ UL GAP, may cause a coverage problem, which cannot be solved by uplink and downlink timeslot matching, and to solve the coverage problem, measures often adopted include that a bandwidth smaller than that of a downlink, such as a downlink 400MHz uplink 100MHz, is adopted in an uplink, a low-order modulation, such as being unable to support 64QAM, is adopted in the uplink, QPSK is adopted in the uplink, in an extreme case, even the uplink cannot transmit a service, only a downlink packet is fed back, a millimeter wave uplink adopts a low-frequency band, and the like. According to a TCP/IP packet protocol, the downlink bandwidth capacity reaches Gbps, and the uplink needs to maintain the communication capacity of at least several Mbps, so that the downlink cannot work normally under the poor extreme condition of the uplink coverage capacity, and the problem greatly influences the deployment and application of millimeter waves.
Based on the above analysis, improving uplink and downlink coverage, i.e. reducing DL _ UL GAP, is the key of millimeter wave communication.
At present, a millimeter wave application system generally adopts a single-frequency-band Time Division Duplex (TDD) mode, and in order to realize applications such as industrial-level applications and virtual reality, which are enhanced by a large-bandwidth uplink experience and an enhanced low-delay interactive experience, a flexible Frequency Division Duplex (FDD) mode in which transmission and reception work simultaneously is also a necessary requirement, and FDD can be divided into FDD in one frequency band and FDD in two frequency bands. The dual-band time division duplex TDD mode with simultaneous reception and/or transmission of dual bands can bring about a significant experience rise, and is also a working mode that can be considered.
The transmit and receive slots may be defined for various FDD and TDD duplexing schemes. The sending time slot is a time slice for sending, and is a sending mode for continuous working of an FDD duplex system in a sending frequency band, and is a stage working of a TDD duplex system in a working frequency band; the time slot is a time slice for receiving, and the FDD duplex system operates continuously in a receiving frequency band, namely a receiving mode, and the TDD duplex system operates in a working frequency band stage. Based on the above mechanism, FDD system transceiving works simultaneously, and TDD system transceiving works alternately.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention provides a transmitting and receiving asymmetric device and method suitable for a millimeter wave mobile communication system.
Aiming at the technical problem to be solved by the millimeter wave system, the invention forms a receiving and transmitting asymmetrical working mode that the total uplink channel number is greater than the total downlink channel number by introducing an additional receiving unit at the base station side, improves the capacity difference of the uplink and the downlink, improves the uplink experience and simultaneously brings the function of a flexible duplex working mode.
The invention adopts the following technical scheme:
a transmitting-receiving asymmetric device suitable for a millimeter wave mobile communication system comprises a conventional transmitting-receiving unit and an additional receiving unit.
Further, the additional receiving unit comprises an antenna and a radio frequency, the radio frequency comprises a receiving front end module, a receiving phased array module and a receiver module, and the receiving front end module comprises a low noise amplifier.
Further, the low noise amplifier is realized by a silicon-based CMOS tube or a compound process.
Further, the compound process may be a GaN process or a gaas process, or other group iii-v process.
A receiving and transmitting asymmetric method is suitable for a TDD mode of a single millimeter wave frequency band, and specifically comprises the following steps:
sending time slot: the conventional receiving and transmitting unit works in the transmitting mode of the wave band, and the additional receiving unit does not work;
and (3) time slot receiving: the normal receiving and sending unit and the extra receiving unit both participate in receiving work.
A receiving and transmitting asymmetric method is suitable for an FDD mode of a single millimeter wave frequency band, and specifically comprises the following steps:
dividing the millimeter wave frequency band into two word frequency bands with the aim of protecting the bandwidth, namely a receiving sub-band and a receiving sub-band;
the conventional receiving and transmitting unit works in a transmitting sub-band, namely a transmitting time slot;
the additional receiving unit operates in a receiving sub-band, i.e. a receiving time slot.
A receiving and transmitting asymmetric method is suitable for an FDD mode of a double millimeter wave frequency band, wherein the double millimeter wave frequency band comprises a first millimeter wave frequency band working in a transmitting time slot and a second millimeter wave frequency band working in a receiving time slot, a conventional receiving and transmitting unit works in the first millimeter wave frequency band, and an additional receiving unit works in the second millimeter wave frequency band.
The utility model provides a receiving and dispatching asymmetric method, is applicable to FDD and TDD mixed mode of two millimeter wave frequency channels, two millimeter wave frequency channels include first millimeter wave frequency channel and second millimeter wave frequency channel, first millimeter wave frequency channel divides into and receives the time slot and send the time slot, the second millimeter wave frequency channel sets up and receives the time slot, and the operating time of FDD and TDD mixed mode divide into two sections:
a first section, namely a sending time slot of a first millimeter wave frequency band and a receiving time slot of a second millimeter wave frequency band, wherein at the moment, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit works in a receiving mode;
in the second section, the receiving time slot of the first millimeter wave band and the receiving time slot of the second millimeter wave band, the conventional transceiver unit and the additional receiver unit operate in the receiving mode.
A receiving and transmitting asymmetry method is suitable for a TDD mode of a double millimeter wave frequency band, the double millimeter wave frequency band comprises a first millimeter wave frequency band and a second millimeter wave frequency band, the first millimeter wave frequency band is divided into a receiving time slot and a transmitting time slot, the second millimeter wave frequency band is only divided into a receiving time slot, and the working time of the TDD mode is divided into two sections:
in the first section, namely the first millimeter wave frequency band sending time slot, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit does not work;
and the second section, namely the first millimeter wave band receiving time slot, the second millimeter wave band receiving time slot, the conventional receiving and sending unit and the additional receiving unit work in the first millimeter wave band and the second millimeter wave band respectively.
A millimeter wave mobile communication system comprises the asymmetrical transceiving device.
The invention relates to a receiving and transmitting asymmetric method, a conventional receiving and transmitting unit and an additional receiving unit can work in a TDD mode of a single millimeter wave frequency band. For the sending time slot, the conventional receiving and sending unit works in the sending mode of the millimeter wave frequency band, and the additional receiving unit does not work. For the receiving time slot, the conventional receiving and transmitting unit and the additional receiving unit both participate in the receiving work in the millimeter wave frequency band, so that the additional receiving array gain can be obtained, and the high sensitivity of the compound semiconductor can be further obtained for the LNA adopting the compound technology. This way of working can significantly extend the coverage, with significant benefits for the edge user UE 0.
In the asymmetrical transceiving method, the conventional transceiving unit and the additional receiving unit can work in an FDD mode of a double millimeter wave frequency band. The millimeter wave frequency band 1 only has a sending time slot, the millimeter wave frequency band 2 only has a receiving time slot, the conventional receiving and sending unit works in a sending mode in the millimeter wave frequency band 1, and the additional receiving unit works in a receiving mode in the millimeter wave frequency band 2. This way of working may enable the UE2 to promote a fast interaction and a perceived experience compared to a single higher rate,
the invention has the beneficial effects that:
the invention ensures that the millimeter wave communication system has better scene adaptability in the aspects of expanding coverage, improving user perception rate and enhancing service interaction real-time property by introducing the additional receiving unit on the basis of the conventional receiving and sending unit, and obviously improves the system.
The asymmetrical transceiving device is suitable for a TDD mode, an FDD mode and a mixed mode of the modes in a millimeter wave communication system, and has wide application and strong communication capability.
Drawings
FIG. 1 is a schematic structural diagram of an asymmetric transceiver apparatus according to the present invention;
fig. 2 is a schematic structural diagram of a conventional transceiver unit according to the present invention;
FIG. 3 is a schematic diagram of an additional receiving unit according to the present invention;
fig. 4 is a schematic diagram of an asymmetric transceiving method in a single millimeter wave band TDD mode according to embodiment 2 of the present invention;
fig. 5 is a schematic diagram of an asymmetric transceiving method operating in a single millimeter wave band FDD mode in embodiment 3 of the present invention;
fig. 6 is a schematic working diagram of an asymmetric transceiving method in a dual millimeter wave band FDD mode according to embodiment 4 of the present invention;
fig. 7 is a schematic diagram of an asymmetric transceiving method operating in a mixed mode of a dual millimeter wave frequency band FDD and TDD in embodiment 5 of the present invention;
fig. 8 is a schematic diagram of an asymmetric transceiving method operating in a dual millimeter wave frequency band TDD mode in embodiment 6 of the present invention.
FIG. 9 is a schematic diagram of user distribution and operation mode;
FIG. 10 is a schematic diagram of the mode selection logic of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
In fig. 4-8 of the present invention, the conventional transceiver unit is denoted as "conventional", the additional transceiver unit is denoted as "additional", T and R are in transmitting and receiving states, respectively, and the non-labeled state represents that T and R are in non-operating state.
Example 1
As shown in fig. 1, fig. 2 and fig. 3, a transceiving asymmetric device is different from a transceiving symmetric device only having a conventional transceiving unit where the total uplink channel number is equal to the total downlink channel number.
Further, the additional receiving unit and the conventional transceiver unit may be integrated in one physical entity or may be independent physical entities, the independent physical entity of the additional receiving unit may be initially deployed or subsequently deployed, the additional receiving unit may be deployed on different layers of the iron tower or the same layer, and the additional receiving unit may be deployed on the same holding pole or different holding poles. In summary, the additional receiving unit deployment form can be relatively flexible.
The conventional transceiver unit is composed of an antenna and a radio frequency, wherein the radio frequency comprises a transceiver front-end module, a phased array module and a transceiver module, the transceiver front-end module comprises a switch/LNA/PA and other components, the LNA is a low noise amplifier for receiving a low channel, and the PA is a power amplifier for transmitting the channel.
The extra receiving unit consists of an antenna and a radio frequency, the radio frequency comprises a receiving front end module covering the LNA part, a receiving phased array module, a receiver module and the like, and the extra receiving unit and a conventional receiving and transmitting unit work together to form a receiving and transmitting asymmetric framework.
Further, the LNA of the additional receiving unit may be implemented by a silicon-based CMOS process or a compound process, and the compound process may specifically adopt a GaN process or a gaas process or other three-five processes. The compound process can obtain better high-sensitivity reception performance than the CMOS process.
The conventional transceiver unit of the present invention can employ the same array size as the additional receiver unit and employ a compound LNA, which provides an additional 6dB receive gain compared to the conventional transceiver unit alone.
The antenna and the LNA of the additional receiving unit of the invention can realize broadband operation, such as supporting the frequency bands of 28GHz and 39GHz of 5G and its evolution at the same time, and the difference is that the broadband multiband antenna and the LNA can support more operation modes, and the narrowband multiband antenna and the LNA support less operation modes.
It will be appreciated by those skilled in the art that the additional receiving unit's bandbroadening is easier to implement than the conventional transceiver unit's bandbroadening, and given that the additional receiving unit's bandbroadening is a basic configuration, it is naturally also within the scope of this patent to narrow the additional receiving unit's band as a special case and its corresponding mode of operation as a subset.
The asymmetric device of the present invention can select different logics and different working modes according to the conditions of path loss, customer experience, frequency band, etc., as shown in table 1:
TABLE 1
As shown in fig. 10, the determination process is:
step 1: and judging the road loss condition. When the path loss is large and the uplink channel quality is poor or the uplink rate is small, selecting a single millimeter wave frequency band coverage enhanced TDD mode and ending the whole process; when the path loss is smaller, entering the step 2;
step 2: and judging whether the interactive experience needs to be improved. When lifting is needed, entering the step 4; otherwise, step 3 is carried out, and at the moment, the default system value is to improve the uplink perception experience;
and step 3: and judging whether two sections of millimeter wave frequency spectrums exist. When two sections of millimeter wave frequency spectrums exist and the base station has dual-band receiving capability, selecting a dual-band TDD mode and finishing the whole process; and when the two sections of millimeter wave frequency spectrums do not exist, selecting a single-frequency-band TDD mode, and ending the whole process.
And 4, step 4: and judging whether the uplink experience needs to be improved. When the uplink experience needs to be improved, entering step 5; otherwise, go to step 6.
And 5: and judging whether two sections of millimeter wave frequency spectrums exist. When two sections of millimeter wave frequency spectrums exist, a double-frequency FDD and TDD mixed mode is selected, and the whole process is ended; and when the two sections of millimeter wave frequency spectrums do not exist, selecting a single-frequency-band TDD mode, and ending the whole process.
Step 6: and judging whether two sections of millimeter wave frequency spectrums exist. When two sections of millimeter wave frequency spectrums select a dual-band FDD mode, and the whole process is ended; and when two sections of millimeter wave frequency spectrums do not exist, selecting a single-frequency band FDD mode, and finishing the whole process.
As shown in fig. 9 and 10, UE0 is farther from the base station and selects the TDD mode coverage enhancement mode; the UE1 and the UE2 are not far away from a base station, so that the customer interaction experience needs to be improved, the UE1 selects a single FDD working mode, and the UE2 selects a double millimeter wave frequency band; UE3 needs to improve both uplink experience and interactive experience, so that an FDD and TDD mixed mode is selected and is at a distance which is closer to UE0 than UE1 and UE 2; the UE4 utilizes two frequency bands to improve uplink experience when the distance is short.
Example 2
As shown in fig. 4, an asymmetric transceiving method is applicable to a TDD mode of a single millimeter wave frequency band, and specifically includes:
sending time slot: the conventional receiving and transmitting unit works in the transmitting mode of the wave band, and the additional receiving unit does not work;
and (3) time slot receiving: the normal receiving and sending unit and the extra receiving unit both participate in receiving work.
This allows additional receive array gain to be achieved, which further benefits the high sensitivity of compound semiconductors for LNAs using compound technology. This way of working can significantly extend the coverage, with significant benefits for the edge user UE 0.
Example 3
As shown in fig. 5, in an asymmetric transceiving method, a conventional transceiving unit and an additional receiving unit can operate in an FDD mode in a certain millimeter wave band
The method specifically comprises the following steps:
dividing the millimeter wave frequency band into two word frequency bands with the aim of protecting the bandwidth, namely a receiving sub-band and a receiving sub-band;
sending time slot: the conventional receiving and transmitting unit works in a transmitting sub-frequency band;
and (3) time slot receiving: the additional receiving unit operates in a receiving sub-band.
Further, for 27.5 to 29.5GHz, a guard band of 1GHz can be selected, 500MHz is respectively adopted for transceiving, spatial isolation, frequency band isolation, and transceiving filtering of a transceiving antenna can respectively provide at least 45dB, 30dB, and 15dB to ensure at least 90dB isolation, and the UE1 in table 1 operates in this mode, generally the UE1 is closer to a base station, and interference for receiving is controlled within 5% of loss of receiving performance. Can be suitable for any transceiving time slot proportioning requirement.
Example 4
As shown in fig. 6, an asymmetric transceiving method is applicable to an FDD mode of a dual millimeter wave band, where the dual millimeter wave band includes a first millimeter wave band operating in a transmit time slot and a second millimeter wave band operating in a receive time slot, a conventional transceiver unit operates in the first millimeter wave band, and an additional receiver unit operates in the second millimeter wave band.
Further, for 28GHz and 39GHz, natural transmit-receive guard bands of 10GHz magnitude can be provided, spatial isolation of transmit-receive antennas, frequency band isolation, and transmit-receive filtering can provide isolation in excess of 90dB, and the UE2 of fig. 10 operates in this mode, where the UE2 is located a little farther from the base station than the UE1, and the transmit-receive interference is controlled within 5% of the loss of reception performance. Can be suitable for any transceiving time slot proportioning requirement.
Example 5
As shown in fig. 7, an asymmetric method for transceiving is applicable to FDD and TDD mixed modes of dual millimeter wave frequency bands, where the dual millimeter wave frequency bands include a first millimeter wave frequency band and a second millimeter wave frequency band, the first millimeter wave frequency band is divided into a receiving slot and a transmitting slot, the second millimeter wave frequency band sets the receiving slot, and the operating time of the FDD and TDD mixed modes is divided into two sections:
a first section, namely a sending time slot of a first millimeter wave frequency band and a receiving time slot of a second millimeter wave frequency band, wherein at the moment, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit works in a receiving mode;
in the second section, the receiving time slot of the first millimeter wave frequency band and the receiving time slot of the second millimeter wave frequency band, the conventional transceiver unit and the additional receiver unit work in a receiving mode.
Further, the present embodiment can provide 10GHz natural transmit-receive guard bands for 28GHz and 39GHz, and the spatial isolation, frequency band isolation and transmit-receive filtering of the transmit-receive antenna can provide more than 90dB isolation, and the UE3 of fig. 10 operates in this mode. Can be suitable for any transceiving time slot proportioning requirement.
Example 6
As shown in fig. 8, a receiving and transmitting asymmetric method is applicable to a TDD mode with dual millimeter wave bands, where the dual millimeter wave bands include a first millimeter wave band and a second millimeter wave band, the first millimeter wave band is divided into a receiving time slot and a transmitting time slot, the second millimeter wave band is divided into only a receiving time slot, and the operating time of the TDD mode is divided into two sections:
in the first section, namely the first millimeter wave frequency band sending time slot, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit does not work;
in the second section, i.e., the first millimeter wave band receive time slot, the second millimeter wave band receive time slot, the conventional transceiver unit and the additional receiver unit respectively operate in the first millimeter wave band and the second millimeter wave band.
Referring to fig. 8, the transmit slot operates at 28GHz, while operating at 28GHz and 39GHz timeslots. The working mode can be suitable for any transceiving time slot proportioning requirement.
Example 6
A millimeter wave mobile communication system comprises a transmitting and receiving asymmetric device, wherein the transmitting and receiving asymmetric device comprises a conventional transmitting and receiving unit and an additional receiving unit.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A receiving and transmitting asymmetric device suitable for a millimeter wave mobile communication system is characterized by comprising a conventional receiving and transmitting unit and an additional receiving unit;
the asymmetrical receiving and transmitting device is suitable for a TDD mode of a single millimeter wave frequency band, an FDD mode of a double millimeter wave frequency band, an FDD and TDD mixed mode of a double millimeter wave frequency band and a TDD mode of a double millimeter wave frequency band;
the asymmetrical transceiving device is suitable for a TDD mode of a single millimeter wave frequency band, and the specific transceiving process is as follows:
sending time slot: the conventional receiving and transmitting unit works in a transmitting mode of a single millimeter wave frequency band, and the additional receiving unit does not work;
and (3) time slot receiving: the conventional receiving and transmitting unit and the additional receiving unit both participate in receiving work;
the asymmetrical transceiving device is suitable for an FDD mode of a single millimeter wave frequency band, and the specific transceiving process is as follows:
dividing the millimeter wave frequency band into two word frequency bands with the aim of protecting the bandwidth, wherein the two word frequency bands are a transmitting sub-band and a receiving sub-band respectively;
the conventional receiving and transmitting unit works in a transmitting sub-band, namely a transmitting time slot;
the extra receiving unit works in a receiving sub-band, namely a receiving time slot;
the asymmetrical transceiving device is suitable for an FDD mode of a double millimeter wave frequency band, and specifically comprises the following components: the dual millimeter wave frequency band comprises a first millimeter wave frequency band working in a sending time slot and a second millimeter wave frequency band working in a receiving time slot, the conventional receiving and sending unit works in the first millimeter wave frequency band, and the additional receiving unit works in the second millimeter wave frequency band;
the asymmetrical receiving and transmitting device is suitable for FDD and TDD mixed modes of double millimeter wave frequency bands, and specifically comprises the following components: the double millimeter wave frequency band comprises a first millimeter wave frequency band and a second millimeter wave frequency band, the first millimeter wave frequency band is divided into a receiving time slot and a sending time slot, the second millimeter wave frequency band is provided with the receiving time slot, and the working time of the FDD and TDD mixed modes is divided into two sections:
a first section, namely a sending time slot of a first millimeter wave frequency band and a receiving time slot of a second millimeter wave frequency band, wherein at the moment, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit works in a receiving mode;
in the second section, the receiving time slot of the first millimeter wave frequency band and the receiving time slot of the second millimeter wave frequency band, the conventional receiving and sending unit and the additional receiving unit work in a receiving mode;
the asymmetrical receiving and transmitting device is suitable for a TDD mode of a double millimeter wave frequency band, and specifically comprises the following components: the double millimeter wave frequency band comprises a first millimeter wave frequency band and a second millimeter wave frequency band, the first millimeter wave frequency band is divided into a receiving time slot and a sending time slot, the second millimeter wave frequency band is only divided into a receiving time slot, and the working time of the TDD mode is divided into two sections:
in the first section, namely the first millimeter wave frequency band sending time slot, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit does not work;
in the second section, i.e., the first millimeter wave band receive time slot, the second millimeter wave band receive time slot, the conventional transceiver unit and the additional receiver unit respectively operate in the first millimeter wave band and the second millimeter wave band.
2. The asymmetric transceiver apparatus as claimed in claim 1, wherein the additional receiving unit comprises an antenna and a radio frequency, the radio frequency comprises a receive front-end module, a receive phased array module and a receiver module, and the receive front-end module comprises a low noise amplifier.
3. The asymmetric transceiver device of claim 2, wherein the low noise amplifier is implemented by silicon-based CMOS transistor or compound technology.
4. The asymmetric transceiver device of claim 3, wherein the compound process is a GaN process or a GaA s process.
5. The asymmetric transmitting/receiving method based on the asymmetric transmitting/receiving device of any one of claims 1 to 4, which is suitable for a TDD mode of a single millimeter wave frequency band, and specifically comprises:
sending time slot: the conventional receiving and transmitting unit works in a transmitting mode of a single millimeter wave frequency band, and the additional receiving unit does not work;
and (3) time slot receiving: the normal receiving and sending unit and the extra receiving unit both participate in receiving work.
6. The asymmetric transmitting/receiving method based on the asymmetric transmitting/receiving device of any one of claims 1 to 4, which is suitable for an FDD mode of a single millimeter wave frequency band, and specifically comprises:
dividing the millimeter wave frequency band into two word frequency bands with the aim of protecting the bandwidth, wherein the two word frequency bands are a transmitting sub-band and a receiving sub-band respectively;
the conventional receiving and transmitting unit works in a transmitting sub-band, namely a transmitting time slot;
the additional receiving unit operates in a receiving sub-band, i.e. a receiving time slot.
7. A transmitting/receiving asymmetry method based on a transmitting/receiving asymmetry apparatus according to any one of claims 1-4, characterized by being adapted to an FDD mode of a dual millimeter wave band, the dual millimeter wave band comprising a first millimeter wave band operating in a transmitting time slot and a second millimeter wave band operating in a receiving time slot, the conventional transmitting/receiving unit operating in the first millimeter wave band, and the additional receiving unit operating in the second millimeter wave band.
8. The asymmetric transceiving method of the asymmetric transceiving apparatus according to any one of claims 1 to 4, wherein the asymmetric transceiving method is applied to an FDD and TDD hybrid mode of a dual millimeter wave band, the dual millimeter wave band includes a first millimeter wave band and a second millimeter wave band, the first millimeter wave band is divided into a receiving slot and a transmitting slot, the second millimeter wave band is provided with a receiving slot, and the operating time of the FDD and TDD hybrid mode is divided into two sections:
a first section, namely a sending time slot of a first millimeter wave frequency band and a receiving time slot of a second millimeter wave frequency band, wherein at the moment, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit works in a receiving mode;
in the second section, the receiving time slot of the first millimeter wave frequency band and the receiving time slot of the second millimeter wave frequency band, the conventional transceiver unit and the additional receiver unit work in a receiving mode.
9. A receiving and transmitting asymmetry method based on a receiving and transmitting asymmetry apparatus of any one of claims 1-4, characterized in that it is applied to a TDD mode of a dual millimeter wave band, where the dual millimeter wave band includes a first millimeter wave band and a second millimeter wave band, the first millimeter wave band is divided into a receiving time slot and a transmitting time slot, the second millimeter wave band is divided into only a receiving time slot, and the operating time of the TDD mode is divided into two sections:
in the first section, namely the first millimeter wave frequency band sending time slot, the conventional receiving and sending unit works in a sending mode, and the additional receiving unit does not work;
in the second section, i.e., the first millimeter wave band receive time slot, the second millimeter wave band receive time slot, the conventional transceiver unit and the additional receiver unit respectively operate in the first millimeter wave band and the second millimeter wave band.
10. A millimeter wave mobile communication system comprising the asymmetric transceiver apparatus according to any one of claims 1 to 4.
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