CN108880638A - It is a kind of to expand in the cell networking structure of 5G network - Google Patents
It is a kind of to expand in the cell networking structure of 5G network Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/066—Telephone sets adapted for data transmision
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W76/10—Connection setup
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- H—ELECTRICITY
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Abstract
It is provided by the present application it is a kind of expansion in the cell networking structure of 5G network, including：Core net, 5G millimeter wave base station, the base station M4R and MIMO network；Core net is connect with 5G millimeter wave base station by millimeter wave or optical fiber；5G millimeter wave base station and the base station M4R pass through millimeter wave link connection；The network signal that the base station M4R is used to send 5G millimeter wave base station is handled, so that network signal meets MIMO transmission agreement, and the network signal handled is sent to MIMO network.The application expands on 5G network, 5G millimeter wave base station and MIMO net connection are got up by the base station M4R, the advantages of enabling 5G network to pass through MIMO enters cell and interior, high speed Internet access experience is provided to indoor user, the building of the wireless communication cell 5G of indoor user can be covered by realizing one.
Description
Technical field
The present invention relates to 5G networking technology fields more particularly to a kind of expansion in the cell networking structure of 5G network.
Background technique
One of 5G key technology when millimetre-wave attenuator, the bandwidth of ultra-wide are capable of providing the communication for supporting to be up to tens GbpS
Rate, but there is also the disadvantages of the big penetration capacity difference of transmission attenuation.Therefore it is only used for point-to-point transmission, as base station returns.
And for the user of wireless communication, main flow all occurs indoors, and wall blocks so that outdoor base station can not
It is directly communicated with user, so that user, which can not enjoy, directly enjoys millimeter wave broadband bring high-speed.And current room
External signal accesses indoor mode and depends on wired connection, i.e., is introduced outdoor signal by optical fiber or ethernet line
Interior, then pass to user.So whole lower deployment cost and difficulty can greatly improve.Low-frequency wave band is although through walls
Ability is strong, but frequency spectrum resource is very crowded, and the rate of single link is insufficient for 5G requirement.It is a kind of to be provided in low-frequency range
Extensive MIMO technique (Massive MIMO) when the technology of high data throughput.This technology is dependent on extensive
Aerial array and beam forming, cost of implementation is very high, while antenna volume greatly increases, and disposes difficulty also with promotion.
The key to solve the above problems is to seek reliable, low cost a technology, can cover for constructing one
The wireless communication cell 5G of indoor user.
Summary of the invention
The present invention provides a kind of expansions in the cell networking structure of 5G network, can cover indoor user for constructing one
The wireless communication cell 5G.
It is provided by the present application it is a kind of expansion in the cell networking structure of 5G network, including：Core net, 5G millimeter wave base station,
The base station M4R and MIMO network；
Core net is connect with 5G millimeter wave base station by millimeter wave or optical fiber；
5G millimeter wave base station and the base station M4R pass through millimeter wave link connection；
The network signal that the base station M4R is used to send 5G millimeter wave base station is handled, so that network signal meets MIMO
Transport protocol, and the network signal handled is sent to MIMO network.
Preferably, MIMO network includes relay node and indoor terminal；
Relay node receives the network signal that the base station M4R is sent and network signal progress frequency conversion is obtained low-frequency band
Signal, and the signal of low-frequency band is transferred to indoor terminal.
Preferably, the base station M4R includes：Modem, n millimeter-wave transceiver, channel controller, separation combiner and
M antenna, n are more than or equal to 1 and m and are more than or equal to 1；
Modem is connect with 5G millimeter wave base station, and modem is also connect with n millimeter-wave transceiver, n milli
Metric wave transceiver is connect by separating combiner with m antenna；
Channel controller is connect with n millimeter-wave transceiver, is sent out for calculating channel response and by millimeter wave local frequency
It send to n millimeter-wave transceiver.
Preferably, modem is used to that the base band to 5G millimeter wave Base Transmitter to be required to believe according to the propagation of MIMO link
It number is modulated, obtains the network signal for meeting MIMO transmission agreement.
Preferably, modem, which is also used to encode by time-space, is converted to n parallel letters for baseband signal
Road, the corresponding millimeter-wave transceiver of a channel.
Preferably, channel controller is used to distribute corresponding millimeter wave local frequency for n millimeter-wave transceiver and will milli
Metric wave local frequency is sent to n millimeter-wave transceiver.
Preferably, relay node is realized by analog circuit, and analog circuit includes：Millimeter wave antenna, millimeter wave duplexer,
First frequency mixer, the second frequency mixer, frequency assignment control, low frequency duplexer, low-frequency antenna；
The millimeter-wave signal of the received millimeter wave base station of millimeter wave antenna is through millimeter wave duplexer, the first frequency mixer and low frequency
Duplexer is transmitted to low-frequency antenna and emits to indoor terminal, and millimeter-wave signal is in the first frequency mixer and frequency assignment control
First carrier frequency carries out downconverting to low frequency carrier signal frequency range；
The signal of the low frequency carrier signal frequency range of the received indoor terminal of low-frequency antenna is through low frequency duplexer, the second frequency mixer and milli
Metric wave duplexer is transmitted to millimeter wave antenna and emits to millimeter wave base station, and the signal of low frequency carrier signal frequency range is in the second frequency mixer and frequency
Second carrier frequency of rate assignment control carries out up-conversion to millimeter wave carrier frequency range.
Preferably, it is also communicated by virtual MIMO channel between the base station M4R and MIMO network, virtual MIMO channel packet
Include millimeter wave band and low-frequency band.
Preferably, the link up and down of the base station M4R and MIMO network uses MIMO transmission mode or the multi-user of time-division, frequency division
Access module.
Preferably, the different millimeter wave subchannel of MIMO Web vector graphic of neighboring community and different low-frequency bands.
As can be seen from the above technical solutions, the present invention has the following advantages that：
It is provided by the present application it is a kind of expansion in the cell networking structure of 5G network, including：Core net, 5G millimeter wave base station,
The base station M4R and MIMO network；Core net is connect with 5G millimeter wave base station by millimeter wave or optical fiber；5G millimeter wave base station and M4R
Base station passes through millimeter wave link connection；The network signal that the base station M4R is used to send 5G millimeter wave base station is handled, so that net
Network signal meets MIMO transmission agreement, and the network signal handled is sent to MIMO network.The application is enterprising in 5G network
Row is expanded, and 5G millimeter wave base station and MIMO net connection are got up by the base station M4R, 5G network is enabled to pass through the excellent of MIMO
Point enters cell and interior, provides high speed Internet access experience to indoor user, it is wireless to realize the 5G that one can cover indoor user
The building of communication cell.
Detailed description of the invention
It in order to illustrate the embodiments of the present invention more clearly, below will be to required use in embodiment or description of the prior art
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of schematic diagram of one embodiment of cell networking structure of the expansion provided by the present application in 5G network；
Fig. 2 is in the embodiment of the present application for illustrating the schematic diagram of M4R principle；
Fig. 3 is in the embodiment of the present application for illustrating that M4R millimeter wave base station is expanded in the schematic diagram of 5G network；
Fig. 4 is the architecture diagram of the base station M4R in the embodiment of the present application；
Fig. 5 is the circuit diagram of relay node in the embodiment of the present application.
Specific embodiment
The present invention provides a kind of expansions in the cell networking structure of 5G network, can cover indoor user for constructing one
The wireless communication cell 5G.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Referring to Fig. 1, a kind of one embodiment of cell networking structure of the expansion provided by the present application in 5G network, packet
It includes：Core net, 5G millimeter wave base station, the base station M4R and MIMO network；
Core net is connect with 5G millimeter wave base station by millimeter wave or optical fiber；
5G millimeter wave base station and the base station M4R pass through millimeter wave link connection；
The network signal that the base station M4R is used to send 5G millimeter wave base station is handled, so that network signal meets MIMO
Transport protocol, and the network signal handled is sent to MIMO network.
Further, MIMO network includes relay node and indoor terminal；
Relay node receives the network signal that the base station M4R is sent and network signal progress frequency conversion is obtained low-frequency band
Signal, and the signal of low-frequency band is transferred to indoor terminal.
The application expands on 5G network, and 5G millimeter wave base station and MIMO net connection are got up by the base station M4R,
The advantages of enabling 5G network to pass through MIMO enters cell and interior, provides high speed Internet access experience to indoor user, realizes
The building of one wireless communication cell 5G that can cover indoor user.M4R system is as a kind of low cost, expansible high speed nothing
Line communication solution can be embedded into the deployment of 5G, make up lacking for millimeter wave ability difference through walls and low-frequency band narrow bandwidth
Point.When constructing the cell of 5G, M4R can carry out prolonging Shen on existing 5G link, increase 5G's by building local system
Coverage area can be used as the basic structure of 5G networking end.
The basic principle of the application will be explained below：
Millimeter wave-microwave multiple-input and multiple-output relaying technique (Millimeter to Microwave MIMO Relay,
M4R) by way of the relaying of frequency conversion, the channeling on millimeter wave is converted to the spatial reuse of Sub 6GHz, with
Multiple-input and multiple-output (Multiple Input Multiple Output, MIMO) mode constructs high speed wireless communications network.This
Item technology can construct the cell-radio network of low cost, allow indoor user that can pass through high speed millimeter wave in fully wireless mode
Network insertion core network.
M4R technology has preferable compatibility simultaneously, can be applied in multiple levels of cordless communication network, this patent
It is proposed sub-network building cell of the benefit by M4R system embedment into 5G network, as network end-point part.
The basic principle of M4R is the relaying by frequency conversion, connects millimeter wave channel and Sub 6GHz mimo channel.
One M4R group net unit includes three major parts：Millimeter wave base station, relay node, indoor terminal.Firstly, millimeter wave base station
Broadband millimeter-wave frequency spectrum is subdivided into the subchannel of narrower bandwidth.The Sub that the frequency bandwidth and system of every sub-channels use
The frequency bandwidth of 6GHz wave band is consistent, is not overlapped on frequency domain, constitutes one group of parallel signal path.These subchannels are via base
The millimeter wave channel stood is communicated with distributed relay node.Relay node is placed in outdoor, with millimeter wave base station it
Between constitute LOS (Line of Sight) channel.The corresponding relay node of each sub-channels, by relay node by millimeter wave
Subchannel is converted on the unified carrier frequency of Sub 6GHz wave band.Via the amplification of relay node, the signal of each sub-channels then with
The form of MIMO is communicated with to indoor terminal.And indoor terminal then receives and processes signal in the form of MIMO.System is whole
It is equivalent to the MIMO link established from millimeter wave base station to indoor terminal.Its basic principle is as shown in Figure 2.
M4R system can be embedded into the deployment of 5G as a kind of low cost, expansible high-speed radiocommunication solution
In, the shortcomings that making up millimeter wave ability difference through walls and low-frequency band narrow bandwidth.When constructing the cell of 5G, M4R can be existing
5G link on carry out prolonging Shen, by building local system increase 5G coverage area, can be used as the basic of 5G networking end
Structure.
By above-mentioned principle it is found that the application is actually by M4R system building in the 5G for arbitrarily having proposed or having built
On network.
Referring to Fig. 1, M4R system is for constructing cell sub-network.Here by the signal pass order of downlink come
Explain M4R systematic difference.Firstly, core net is connected with 5G millimeter wave base station by modes such as millimeter waves or optical fiber.Then
The millimeter wave access point of the subsystem of millimeter wave base station and M4R passes through millimeter wave link connection.At this moment signal comes into M4R net
Network.Millimeter wave access point handles network signal, provides the interface from network layer to physical layer, and according to M4R principle, right
The signal that will be transmitted such as is encoded, is modulated at the operation, meets MIMO transmission agreement.According to M4R principle, millimeter wave access point is passed
The defeated relay node in cell communicates, and relay node is relayed by frequency conversion signal passing to interior in low-frequency band
User.
In the uplink, signal transfer direction is opposite.The signal of indoor user first passes through what about relay node formed
Mimo channel, each relay node, by signal frequency conversion to millimeter wave band, then return to M4R according to corresponding sub-channel frequencies
Millimeter wave base station.Then millimeter-wave signal is demodulated, and reverts to baseband signal, then returns to 5G core network.
M4R millimeter wave base station (base station abbreviation M4R) will be described in detail below.
Referring to Fig. 3, the millimeter wave base station in M4R system, the base station abbreviation M4R, basic function are to provide subzone network
With the entrance of core network.In the scheme of 5G, millimeter-wave technology is returned by application and base station, and the base station M4R is then in this base
Networking expansion is carried out on plinth.It is communicated between the base station M4R and 5G millimeter wave base station, constitutes millimeter wave return link.Receiving milli
After the data of metric wave base station, the base station M4R converts thereof into the signal transmitted in M4R network, and is transmitted in its sub-network.It is real
The base station M4R acts as the effect of protocol conversion interface in border.
It should be noted that millimeter wave base station can also directly provide connecing for M4R sub-network in the deployment of actual network
Mouth effect.And consider the expansion of network, it can be on the 5G millimeter-wave systems after deployed, by assuming that M4R cell
Realize the function that millimeter wave bandwidth is registered one's residence.The base station M4R major function is as follows：
(a) it is communicated with 5G millimeter wave base station, while the interface as protocol conversion, by data transfer mode in 5G milli
It is switched between metric wave and M4R system.
(b) interface of network layer to physical layer is provided.
(c) it is in millimeter wave base station communication, M4R signal needs to parse baseband signal；For downlink,
It arranges different user data, carries out packing framing, confirms transmission priority.According to the propagation of MIMO link require to signal into
The operation such as row precoding.For uplink, the base station M4R demodulates the data in MIMO link, regenerates full
The signal of sufficient 5G millimeter wave transport protocol.
(d) it is in the communication of indoor user, the channel estimation for needing that terminal is cooperateed with to complete MIMO, dynamic optimization signal passes
Defeated mode distributes subchannel carrier frequency and bandwidth such as the corresponding relay node of reasonable distribution subchannel.According to indoor terminal
Situation distributes parallel data fluxion, optimize rate or improve signal-to-noise ratio etc..
Referring to Fig. 4, the base station M4R includes：Modem, n millimeter-wave transceiver, channel controller, separation combination
Device and m antenna, n are more than or equal to 1 and m and are more than or equal to 1；
Modem is connect with 5G millimeter wave base station, and modem is also connect with n millimeter-wave transceiver, n milli
Metric wave transceiver is connect by separating combiner with m antenna；
Channel controller is connect with n millimeter-wave transceiver, is sent out for calculating channel response and by millimeter wave local frequency
It send to n millimeter-wave transceiver.
Separation combiner, which combines the millimeter wave that n millimeter-wave transceiver is sent and reassigns to antenna, to be emitted,
When antenna amount is more, the same millimeter wave can be sent with a plurality of antenna to enhance signal.
Modem is used to that the baseband signal to 5G millimeter wave Base Transmitter to be required to carry out according to the propagation of MIMO link
Modulation, obtains the network signal for meeting MIMO transmission agreement.
Modem, which is also used to encode by time-space, is converted to n parallel channels, a letter for baseband signal
Road corresponds to a millimeter-wave transceiver.
Therefore, for downlink, modem is required indeed according to the propagation of MIMO link to 5G millimeters
The baseband signal of wave Base Transmitter is modulated while baseband signal progress precoding is converted to n parallel channels and sends out respectively
It send to n millimeter-wave transceiver.
For uplink, the data in MIMO link are carried out demodulation combination by the base station M4R, regenerate satisfaction
The signal of 5G millimeter wave transport protocol.
Channel controller is used for for the corresponding millimeter wave local frequency of n millimeter-wave transceiver distribution and by millimeter wave local oscillator
Frequency is sent to n millimeter-wave transceiver.Since in general, a channel corresponds to a millimeter-wave transceiver, a channel
A corresponding millimeter wave local frequency, therefore the corresponding millimeter-wave transceiver of a millimeter wave local frequency, according to channel point
Difference with situation, channel controller can be that each millimeter-wave transceiver distributes corresponding millimeter wave according to channel distribution situation
Local frequency realizes the division of channel, and the MIMO transmission after being makes preparation.
Referring to Fig. 5, relay node is realized by analog circuit, analog circuit includes：Millimeter wave antenna, millimeter wave duplex
Device, the first frequency mixer, the second frequency mixer, frequency assignment control, low frequency duplexer, low-frequency antenna；
The millimeter-wave signal of the received millimeter wave base station of millimeter wave antenna is through millimeter wave duplexer, the first frequency mixer and low frequency
Duplexer is transmitted to low-frequency antenna and emits to indoor terminal, and millimeter-wave signal is in the first frequency mixer and frequency assignment control
First carrier frequency carries out downconverting to low frequency carrier signal frequency range；
The signal of the low frequency carrier signal frequency range of the received indoor terminal of low-frequency antenna is through low frequency duplexer, the second frequency mixer and milli
Metric wave duplexer is transmitted to millimeter wave antenna and emits to millimeter wave base station, and the signal of low frequency carrier signal frequency range is in the second frequency mixer and frequency
Second carrier frequency of rate assignment control carries out up-conversion to millimeter wave carrier frequency range.
Relay node is extremely important in M4R system, assumes responsibility for connecting the space resources of millimeter wave frequency spectrum resource and MIMO
The effect connect.In systems, each relay node is assigned a corresponding millimeter wave subchannel.For downlink, in
It is amplified after node when receiving corresponding sub-channel signal, the processing such as down coversion.For uplink, relay node is then
It needs to modulate the signal to millimeter wave frequency band.
The when relay node for being highly desirable to attention all carries out the operation of signal in a manner of analog circuit, in the process not
The operation for being modulated or demodulating.So, the structure of relay node becomes very simple, and the delay of system processing subtracts significantly
It is small.This trunking scheme actually establishes an active mimo channel.The signal of transmission is opaque for relay node
's.
Other than signal link, relay node includes control circuit, and responsible and M4R base station communication manages subchannel distribution,
Gain amplifier, and synchronized with system.
In general, under the premise of being no more than the maximum data rate that millimeter wave channel can provide, relay node is more,
The data throughout that can be provided is bigger.And the relay node of M4R can be realized with a low cost, be able to carry out because structure is simple
Large-scale deployment, maximizes message capacity.
The distribution of relay node should disperse as far as possible, this is conducive to increase space complexity, improve MIMO capacity.And this can
The base station M4R can be needed to provide compared with broad beam.And millimeter wave antenna is generally designed to higher gain, compared with narrow beam.Therefore in portion
When affixing one's name to node, need to compromise consideration.Or the case where dispersing for relay node, using multi-beam millimeter wave antenna and wave beam at
The mode of shape is communicated.
Next indoor terminal is described：
M4R system compatibility with higher can be applied to a variety of indoor terminals that can support MIMO, such as current
WI-FI system.
Indoor terminal needs are cooperateed with millimeter wave base station completes channel estimation, optimizes transmission rate.And for some cases,
Indoor terminal can not feedback channel information to base station when, other agreement can be enabled, locally demodulate MIMO signal.
Indoor terminal can be by diversified forms, and can influence system channel capacity is integrated antenna quantity.One terminal
Can there are one or more antenna and its Transmit-Receive Unit.In general the terminal of multiple antennas can allow higher channel capacity.
Further, it is also communicated by virtual MIMO channel between the base station M4R and MIMO network, virtual MIMO channel
Including millimeter wave band and low-frequency band.
M4R system establishes a virtual MIMO (Virtual MIMO, abbreviation V-MIMO) channel, including millimeter wave and low frequency
Wave band.And due to the presence of relaying, which has active nature, and link gain is adjustable.Meanwhile uplink and downlink channel has
There is nonreciprocity, therefore to carry out channel estimation respectively.
For a mimo system, the channel information of transmitting terminal is particularly significant to optimization system channel capacity, this needs
Receiving end carries out certain feedback.In the downlink of M4R, such feedback is present in indoor terminal and estimates receiving channel
After meter instruction, the training signal received is analyzed, the parameter of channel estimation is obtained, and feeds back to the base station M4R.And for
Different indoor terminals has different channel estimation methods.
When indoor terminal is the single equipment with multiple antennas, channel estimation relatively effective can be carried out, receiver
Each channel is easy to synchronize.When there are multiple indoor terminals, each terminal can be with the instruction of ordinal response transmitting terminal, and base station is then
The algorithm of MIMO is carried out according to the feedback of each terminal.And when multiple indoor terminals can not cooperate with and can not effective Feedback letter
When ceasing to base station, then without channel feedback.
It is especially noted that increasing the carrier wave of millimeter wave subchannel for M4R system is compared to traditional MIMO
This variable of frequency.For millimeter wave channel, the channel with stronger LOS can be generally considered as.According at present for milli
The research of metric wave channel, with relatively flat attenuation characteristic.The frequency response of each sub-channels is flat, while in
It is relatively fixed after node location, therefore the millimeter wave link in M4R may be considered static state or quasi-static.But for not
The attenuation characteristic of same relay node, same sub-channels may be different.It therefore, can be periodical in system operation
Measurement each relay node to the attenuation characteristic of each sub-channels, uniformly advised according to the feedback of indoor terminal
It draws, maximum channel capacity.
In addition to this, relaying node location and frequency can be optimized when disposing M4R, so that it is corresponding to fix its
Subchannel carrier, and do not adjust then in system operation.It does so and can simplify channel estimation method, and simplify relay node
Circuit design, can be used for rapid deployment.
This system is also required to dynamic optimization channel capacity, increases data throughput when system is busy or in the system spare time
When reduce power consumption.This can be realized by switch sections relay node.
Further, the link up and down of the base station M4R and MIMO network is using the multi-purpose of MIMO transmission mode or time-division frequency division
Family access module.
Generally in a communications system, requirement of the downlink to data rate is much higher than uplink.In M4R, up and down
Line link can support the transmission of MIMO method.And for downlink, maximization peak rate is more crucial, therefore
It can remain operational in MIMO space multiplexing mode.And for uplink, the requirement to rate is smaller, therefore one
Determine, such as using time-division or the multi-user access mode of frequency division, in this way may be used using the transmission mode compared with low rate in situation
To simplify algorithm and energy saving.For the uplink of same demand high transfer rate, then M4R supports the full MIMO of uplink and downlink to pass
Defeated mode.
In MIMO network, in general, a base station M4R corresponding one group or several groups of relay nodes guarantee low prolong in this way
When and be easy to synchronous.Relay node can be grouped, and corresponding with service is in one or more building.In deployment relay node
When, it can embed it in building or be suspended on the positions such as exterior wall, roof.
One or more building is arranged in a cell, can be used as a cell networking.Reality as shown in Figure 1
Apply in the networking of example, altogether there are three cell, respectively with ellipse enclose come.
Further, the different millimeter wave subchannel of MIMO Web vector graphic of neighboring community and different low-frequency bands.
There may be multiple relay nodes in single building, these nodes are likely to be received the signal of multiple base stations M4R.
Adjacent base station then needs to cooperate in practice, reduces the crosstalk of minizone.
(1) base station avoids signal from being leaked to adjacent cells by beam forming；
(2) different millimeter wave subchannels and different low-frequency band building local MIMO nets can be used in neighboring community
Network.
(3) according to overall network demand, base station can choose switch sections relay node, it is avoided to receive from adjacent small
The stronger signal in area base station, at the same it is energy saving.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that：It still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of expansion is in the cell networking structure of 5G network, which is characterized in that including：Core net, 5G millimeter wave base station, M4R
Base station and MIMO network；
The core net is connect with 5G millimeter wave base station by millimeter wave or optical fiber；
5G millimeter wave base station and the base station M4R pass through millimeter wave link connection；
The network signal that the base station M4R is used to send 5G millimeter wave base station is handled, so that the network signal
Meet MIMO transmission agreement, and the network signal handled is sent to MIMO network.
2. a kind of expansion according to claim 1 is in the cell networking structure of 5G network, which is characterized in that the MIMO net
Network includes relay node and indoor terminal；
The relay node receives the network signal that the base station M4R is sent and network signal progress frequency conversion is obtained low frequency
The signal of wave band, and the signal of low-frequency band is transferred to indoor terminal.
3. a kind of expansion according to claim 1 is in the cell networking structure of 5G network, which is characterized in that the M4R base
Station includes：Modem, n millimeter-wave transceiver, channel controller, separation combiner and m antenna, n more than or equal to 1 and
M is more than or equal to 1；
The modem is connect with 5G millimeter wave base station, the modem also with the n millimeter wave transceiving
Device connection, the n millimeter-wave transceiver are connect by the separation combiner with the m antenna；
The channel controller is connect with the n millimeter-wave transceiver, frequently for calculating channel response and by millimeter wave local oscillator
Rate is sent to the n millimeter-wave transceiver.
4. a kind of expansion according to claim 3 is in the cell networking structure of 5G network, which is characterized in that the modulatedemodulate
It adjusts device to be used to require to be modulated the baseband signal of the 5G millimeter wave Base Transmitter according to the propagation of MIMO link, is accorded with
Close the network signal of MIMO transmission agreement.
5. a kind of expansion according to claim 3 is in the cell networking structure of 5G network, which is characterized in that the modulatedemodulate
Device is adjusted to be also used to that baseband signal is converted to n parallel channels, the corresponding millimeter of a channel by time-space coding
Wave transceiver.
6. a kind of expansion according to claim 3 is in the cell networking structure of 5G network, which is characterized in that the channel control
Device processed is used to distribute corresponding millimeter wave local frequency for the n millimeter-wave transceiver and is sent to millimeter wave local frequency
The n millimeter-wave transceiver.
7. a kind of expansion according to claim 2 is in the cell networking structure of 5G network, which is characterized in that the relaying section
Point realizes that the analog circuit includes by analog circuit：Millimeter wave antenna, millimeter wave duplexer, the first frequency mixer, second mix
Frequency device, frequency assignment control, low frequency duplexer, low-frequency antenna；
The millimeter-wave signal of the received millimeter wave base station of millimeter wave antenna is through the millimeter wave duplexer, described first
Frequency mixer and the low frequency duplexer are transmitted to the low-frequency antenna and emit to the indoor terminal, and millimeter-wave signal is described
One frequency mixer and the first carrier frequency of the frequency assignment control carry out downconverting to low frequency carrier signal frequency range；
The signal of the low frequency carrier signal frequency range of the received indoor terminal of low-frequency antenna is through the low frequency duplexer, described
Two frequency mixers and the millimeter wave duplexer are transmitted to the millimeter wave antenna and emit to the millimeter wave base station, low frequency carrier signal frequency
The signal of section carries out up-conversion to millimeter wave in second frequency mixer and the second carrier frequency of the frequency assignment control and carries
Wave frequency section.
8. a kind of expansion according to claim 1 is in the cell networking structure of 5G network, which is characterized in that the M4R base
It stands and is also communicated by virtual MIMO channel between the MIMO network, the virtual MIMO channel includes millimeter wave band
And low-frequency band.
9. a kind of expansion according to claim 1 is in the cell networking structure of 5G network, which is characterized in that the M4R base
It stands with the link up and down of the MIMO network using MIMO transmission mode or the multi-user access mode of time-division frequency division.
10. a kind of expansion according to claim 2 is in the cell networking structure of 5G network, which is characterized in that neighboring community
The different millimeter wave subchannel of MIMO Web vector graphic and different low-frequency bands.
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| CN201810846248.8A CN108880638A (en) | 2018-07-27 | 2018-07-27 | It is a kind of to expand in the cell networking structure of 5G network |
| PCT/CN2019/097812 WO2020020319A1 (en) | 2018-07-27 | 2019-07-26 | Cell networking structure developed in 5g network |
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| WO2020020319A1 (en) | 2020-01-30 |
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