CN106686763A - LTE (Long Term Evolution) base station system, cell merging method and cell splitting method - Google Patents
LTE (Long Term Evolution) base station system, cell merging method and cell splitting method Download PDFInfo
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- CN106686763A CN106686763A CN201611091772.6A CN201611091772A CN106686763A CN 106686763 A CN106686763 A CN 106686763A CN 201611091772 A CN201611091772 A CN 201611091772A CN 106686763 A CN106686763 A CN 106686763A
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- module
- lte
- cell
- base station
- remote end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
Abstract
The present invention provides an LTE (Long Term Evolution) base station system, a cell merging method and a cell splitting method. According to the LTE (Long Term Evolution) base station system, the cell merging method and the cell splitting method, an LTE base station digital unit is split into a digital parent unit and digital child units; the digital parent unit is responsible for the processing of an LTE layer 2 and layers above the LTE layer 2; the digital child units are responsible for the processing of an LTE layer 1; and the digital child units and radio frequency modules constitute remote-end modules of the LTE (Long Term Evolution) base station system of the present invention; the digital parent unit constitutes the near-end module of the LTE (Long Term Evolution) base station system of the present invention; the near-end module communicates with the emote end modules through a standard IP network, and therefore, deployment and expansion can be facilitated; related devices, modules or algorithms for optical communication, signal conversion, signal compression/decompression and so on are not required to be adopted, and therefore, technical complexity is low, and costs are low; and the remote-end modules independently perform demodulation and decoding, and therefore, the problem of ground noise rise caused by signal merging in the prior art can be solved.
Description
Technical field
The present invention relates to communication technical field, more particularly, to LTE base station system and cell combining, the method for division.
Background technology
At present, theoretical according to electromagnetic propagation, frequency range is higher, and its signal transmission capacity is poorer, and penetration loss is higher, and 4G
LTE (forth generation cellular communication system) signal is usually located at high band, and (frequency range of such as Band38 is 2570MHz-
2620MHz), so cause the macro base station 4G signals of outdoor weaker to in-door covering ability, it is indoor easily to occur covering blind spot.Separately
On the one hand, 4G business occurs mostly in interior, and macro base station area coverage is big, and its Radio Resource is shared by a large number of users,
So experience poor for unique user, especially densely populated hot spot region.
Disposing little base station indoors can strengthen in-door covering and lift hot spot region Consumer's Experience, but little base station is indoors
Following problem is faced during deployment：1) cover limited.Indoor environment is complicated, and the compartment of building is more, and the material such as wall, glass is to letter
Number decay is serious, mends blind coverage effect and has a greatly reduced quality.2) pilot pollution.Because little base station power is limited, indoor slightly larger area is disposed
When need the little base station of multiple stage, but because indoor deployment it is difficult, it is understood that there may be the problems such as co-channel interference, pilot pollution, access, switching etc.
Key Performance Indicator declines.3) hot charging is colod-application.The resource of one little base station occupancy is identical with macro base station, but the use of little base station service
Amount is less, there is the waste such as transfer resource.
Therefore, under indoor deployment scene, the technology of cell combining becomes particularly important, the little base station of multiple stage merge into one it is little
Area, strengthens and covers, it is to avoid presence of intercell interference.Due to being a cell, there is no switching, corresponding Key Performance Indicator in indoor moving
Lifted, transmission and the resource such as Physical Cell Identifier (PCI) only take up one, it is to avoid waste.In addition, for indoor hot zone
Domain, base station can be carried out cell splitting by us, and different region (such as in the different floors of office building) is with different cells
Cover, not only reach benefit purpose that is blind but also reaching concurrent heating.It is existing to realize that cell combining (or division) technical scheme has two kinds：Base band
Signal is zoomed out；Intermediate frequency/radiofrequency signal is zoomed out.
In Fig. 1, the general frame schematic diagram of prior art one is shown.Three key components are included in the program：
Digital units, baseband signal converge retransmission unit (hereinafter referred to as converging retransmission unit) and multiple radio frequency units：Digital units
Function includes base station baseband and with upper-layer functionality；The function of converging retransmission unit is to receive the baseband signal sent from digital units
And duplication is transmitted to each radio frequency unit and the baseband signal received from each radio frequency unit is converged and is transmitted to digital single
Unit is processed.The effect of radio frequency unit is to convert baseband signals into radiofrequency signal and send or by penetrating for receiving from antenna
Frequency signal is converted into baseband signal.In this scheme, what is transmitted between three ingredients is all baseband signal, but 4G LTE
Baseband signal data amount is very big (such as 20MHz system bandwidths, the close 2Gbps of speed), so must typically adopt fiber-optic transfer.It is real
Network cable transmission can also be adopted on border, but common netting twine and gigabit Ethernet can not meet rate requirement, therefore baseband signal
Have to pass through the special handlings such as compression.The baseband signal scheme of zooming out is applied to the method for cell splitting and is similar to, and difference is in cell
Under division scene, digital units generate or process the baseband signal of multiple cells；And retransmission unit is converged to multichannel baseband signal
Processed and forwarded.There is following defect in prior art one：Need to increase the related module of optic communication and device, cost is carried
Rise；Compression of baseband signals and decompression processing are needed to increase the devices such as FPGA and corresponding algorithm is realized, cost and complexity increase
Plus；The merging of multichannel upward signal easily causes bottom and makes an uproar raising, so as to cause the bit error rate to be lifted.
In Fig. 2, the general frame schematic diagram of prior art two is shown.The program also includes three key components：
Digital units, radio-cell and wireless points.From unlike scheme one, transmission is intermediate frequency letter between radio-cell and wireless points
Number rather than baseband signal.The radio-cell and wireless points of this scheme all must increase at intermediate-freuqncy signal conversion process and transmission
Reason.Radio-cell also needs to the duplication with intermediate-freuqncy signal, aggregation feature.There is following defect in prior art two：Need to increase
Module and the devices such as intermediate-freuqncy signal conversion, duplication, transmission, realize that difficulty and cost all accordingly increase；The conjunction of multichannel upward signal
And easily cause bottom and make an uproar raising, so as to cause the bit error rate to be lifted.
So, in existing cell combining technology, in addition it is also necessary to solve following prior art problem：1) technical sophistication degree is reduced,
The special handling such as baseband signal, intermediate frequency/radiofrequency signal need not be changed, be compressed, be decompressed, be replicated, be transmitted.2) reduce
Cost, it is not necessary to increase the modules such as optic communication, FPGA, IF signal processing or device.3) each remote equipment is carried out solely to signal
Vertical demodulation is made an uproar raising with avoiding upward signal from merging the bottom caused.
The content of the invention
The present invention is to overcome the problems referred to above or solve the above problems at least in part, there is provided a kind of LTE base station system and
Cell combining, splitting method.
According to an aspect of the present invention, there is provided a kind of LTE base station system, including local module, remote end module and ether
Net Switching Module：
The local module, is made up of, for being responsible for LTE layers the numeral mother's unit split out from LTE base station digital units
Two and with the process on upper strata；
The remote end module has several, by the digital subelement and radio frequency unit that split out from LTE base station digital units
Constitute, the digital subelement is used to be responsible for the process of LTE layers one；
The local module is connected by the ethernet switching module with the remote end module.
According to another aspect of the present invention, there is provided a kind of method of cell combining, including：In the downstream direction, it is described
Cell data is sent to described each remote end module by local module in IP messages form by the ethernet switching module；Institute
State remote end module to receive the cell data and externally send signal of eating dishes without rice or wine；
In the upstream direction, each remote end module is independently demodulated, decodes and measures, and by decoded data and
Metrical information is sent to local module and processes in IP messages form by the ethernet switching module.
According to another aspect of the present invention, there is provided a kind of method of cell splitting, including：In the downstream direction, it is described
Transmission data is sent described each remote end module by local module in IP messages form by the ethernet switching module；It is described
Remote end module is used to receive the transmission data IP message, and the transmission data IP message is grouped simultaneously by different districts
Externally send signal of eating dishes without rice or wine；One IP messages group one cell of correspondence；
In the upstream direction, each remote end module is independently demodulated, decodes and measures, and by decoded data and
Metrical information is sent to local module and processes in IP messages form by the ethernet switching module.
The application proposes a kind of LTE base station system and cell combining, splitting method, by by LTE base station digital units quilt
Digital mother's unit and digital two parts of subelement are split into, numeral mother's unit is responsible for LTE layers 2 and the process with upper strata；Numeral
Subelement is responsible for the process of LTE layers 1, and digital subelement constitutes the remote end module of the present invention together with radio-frequency module, and numeral is female single
Unit constitutes the local module of the present invention.The present invention has the advantages that：1) local module of this programme leads to remote end module
The IP network for crossing standard is communicated, and is easy to dispose, is easy to extension；2) optic communication, signal conversion, signal pressure need not be increased
The related device such as contracting/decompression, module or algorithm, technical sophistication degree is low, and cost is relatively low；3) each remote end module independent demodulation, solution
Code, solves in prior art bottom caused by signal merges and makes an uproar elevated problem.
Description of the drawings
Fig. 1 is overall architecture schematic diagram in prior art one；
Fig. 2 is overall architecture schematic diagram in prior art two；
Fig. 3 is according to a kind of overall architecture schematic diagram of LTE base station system of the embodiment of the present invention；
Fig. 4 is according to IP packet networks propagation delay time problem explanation between embodiment of the present invention local module and remote end module
Schematic diagram.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
Such as Fig. 3, during the present invention one is embodied as, a kind of LTE base station system overall architecture schematic diagram is shown.It is overall next
Say, including local module A1, remote end module A2 and ethernet switching module A3：The local module A1, by from LTE base station numeral
The numeral mother unit A101 that unit splits out is constituted, for be responsible for LTE layers two (i.e. LTE layers two, are abbreviated as LTE L2, including
MAC, RLC, PDCP sublayer) and with the process on upper strata；The remote end module has several, by from the fractionation of LTE base station digital units
The digital subelement A201 for going out and radio frequency unit A202 is constituted, and the digital subelement A201 is used to be responsible for (the i.e. LTE of LTE layers one
PHY layer, is abbreviated as LTE L1, is called base band) process；The local module A1 is by the ethernet switching module A3 and institute
State remote end module A2 to be connected.
In another specific embodiment of the invention, a kind of LTE base station system, the ethernet switching module can be with
Network switch or it is integrated in local module very much.
In another specific embodiment of the invention, a kind of LTE base station system, the local module, remote end module and with
By surpassing five classes and the connection of above specification netting twine too between net Switching Module.
In another specific embodiment of the invention, the method for cell combining, including：In the downstream direction, the near-end
Cell data is sent to described each remote end module by module in IP messages form by the ethernet switching module；It is described remote
End module receives the cell data and externally sends signal of eating dishes without rice or wine；In the upstream direction, each remote end module is independently carried out
Demodulation, decoding and measurement, and decoded data and metrical information are passed through into the ethernet switching module in IP messages form
It is sent to local module process.
The data of same cell and to the control information of LTE PHY after the generation of digital units machine tool part, by broadcast
Or multicast functionality is sent to all of remote end module；Each remote end module receives these messages and after LTE PHY, radio frequency processing
It is sent to and eats dishes without rice or wine.The signal that each remote end module sends is identical, belongs to same cell.
In another specific embodiment of the invention, the method for cell splitting, cell data is included but is not limited to：Little fauna
System message, each transmission channel and/or physical channel data.
In another specific embodiment of the invention, the method for cell splitting, including：In the downstream direction, the near-end
Transmission data is sent described each remote end module by module in IP messages form by the ethernet switching module；The distal end
Module is used to receive the transmission data IP message, and the transmission data IP message is carried out being grouped by different districts and external
Transmission is eated dishes without rice or wine signal；One IP messages group one cell of correspondence；In the upstream direction, each remote end module is independently solved
Adjust, decode and measure, and decoded data and metrical information are sent out in IP messages form by the ethernet switching module
Give local module process.
In another specific embodiment of the invention, the method for cell combining, the digital subelement and the radio frequency list
Carried out data transmission by baseband signal between unit.
In another specific embodiment of the invention, the method for cell splitting, the digital subelement and the radio frequency list
Carried out data transmission by baseband signal between unit.
There is time delay in IP packet networks transmission between local module and remote end module.As shown in figure 4, LTE base station exists with UE
Sequential on eating dishes without rice or wine, 3GPP agreements have clearly regulation, for the downlink transfer of same HARQ processes (Process), base station
HARQ feedback is received in moment N then most to be transmitted next time in (N+4) TTI (1TTI=1 milliseconds in LTE) soon, that is, eating dishes without rice or wine
On from receive HARQ feedback to the total time for next time sending signal on eating dishes without rice or wine most it is short require be 4 milliseconds；This 4
Millisecond includes that the HARQ feedback to receiving carries out the process of radio frequency, LTE PHY (base band) and LTE L2 media access control sublayer, also includes
Media access control sublayer, PHY, the process of radio frequency are transmitted next time.As illustrated, t2-t1, t6-t5 are respectively at up-downgoing radio frequency and base band
Reason is time-consuming, and t4-t3 is that MAC layer process is time-consuming, and the interaction between each layer in addition also has some to take, but relatively fewer.This technology
In scheme, the data between local module and remote end module (i.e. between media access control sublayer and PHY) are by IP message transmissions, IP messages
The process and forwarding through Ethernet switch is needed, integrated base station is compared, network transfer delay is increased.
In another specific embodiment of the invention, the method for cell combining, between the local module and remote end module
There is delay problem and solve by following technological means in the transmission of IP packet networks：The process time of compression PHY and MAC layer, saves
Time out is used for compensating network induced delay.
In another specific embodiment of the invention, the method for cell combining, between the local module and remote end module
There is delay problem and solve by following technological means in the transmission of IP packet networks：During downlink transfer, after receiving HARQ progress feedbacks,
LTE base station is transmitted next time in N+m；MAC carries out in advance downlink radio resource scheduling and prepares MAC data；Uplink
When, if can in time receive once transmitting uplink data whether correct result at the ascending resource scheduling moment, carry out just
Often process；If being not timely received once transmitting uplink data whether correct result at the ascending resource scheduling moment,
This does not carry out uplink.
In another specific embodiment of the invention, the method for cell combining is described：7ms≥m≥4ms.
In another specific embodiment of the invention, the method for cell splitting, it is also big that data volume gets over macroreticular time delay.It is up
On direction, the demodulating and decoding of each remote end module independence.Decoded upstream data is independently transmitted to proximal device, and same is up
Data are possible on network repeatedly send.Solution is that local module is selected simultaneously according to information such as channel quality, Block Error Rates
Specify carries out reporting uplink data from certain remote equipment therein, and all reports without all distal ends, so greatly reduce on
The repetition transmission of row data, so as to reduce the network transfer delay of upstream data.
In another specific embodiment of the invention, the method for cell splitting is described：During downlink transfer, receive HARQ and enter
After journey feedback, LTE base station is transmitted next time in N+m；MAC carries out in advance downlink radio resource scheduling and prepares MAC data；
During uplink, if can in time receive once transmitting uplink data whether correct result at the ascending resource scheduling moment,
Then carry out normal process；If being not timely received once whether transmitting uplink data is correctly tied at the ascending resource scheduling moment
Fruit, then this does not carry out uplink.
In another specific embodiment of the invention, the method for cell combining is described to eat dishes without rice or wine signal for synchronizing signal.
In another specific embodiment of the invention, the method for cell splitting is described to eat dishes without rice or wine signal for synchronizing signal.
In another specific embodiment of the invention, the method for cell combining is described to eat dishes without rice or wine signal for synchronizing signal, this skill
The each remote end module of art scheme is each independent to carry out precise synchronization with synchronisation source, by 1588V2 clocks, GPS or can eat dishes without rice or wine same
Step mode is synchronized.
In another specific embodiment of the invention, the method for cell splitting is described to eat dishes without rice or wine signal for synchronizing signal, this skill
The each remote end module of art scheme is each independent to carry out precise synchronization with synchronisation source, by 1588V2 clocks, GPS or can eat dishes without rice or wine same
Step mode is synchronized.
Finally, the present processes are only preferably embodiment, are not intended to limit protection scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of LTE base station system, it is characterised in that including local module, remote end module and ethernet switching module：
The local module, by split out from LTE base station digital units numeral mother unit constitute, for be responsible for LTE layers two and
With the process on upper strata；
The remote end module has several, is made up of the digital subelement and radio frequency unit that split out from LTE base station digital units,
The digital subelement is used to be responsible for the process of LTE layers one；
The local module is connected by the ethernet switching module with the remote end module.
2. the system as claimed in claim 1, it is characterised in that the ethernet switching module can for Ethernet switch or
In being integrated in local module.
3. the system as claimed in claim 1, it is characterised in that the local module, remote end module and ethernet switching module
Between by surpass five classes and the above specification netting twine connection.
4. a kind of method that any one system carries out cell combining in utilization claim 1-3, it is characterised in that include：
In the downstream direction, the local module sends cell data by the ethernet switching module in IP messages form
To described each remote end module；The remote end module receives the cell data and externally sends signal of eating dishes without rice or wine；
In the upstream direction, each remote end module is independently demodulated, decodes and measures, and by decoded data and measurement
Information is sent to local module and processes in IP messages form by the ethernet switching module.
5. a kind of method that any one system carries out cell splitting in utilization claim 1-3, it is characterised in that include：
In the downstream direction, multiple cell datas are passed through the ethernet switching module by the local module in IP messages form
It is sent to corresponding described each remote end module of each cell；Each remote end module is used to receive the cell data, and externally
Transmission is eated dishes without rice or wine signal；
In the upstream direction, each remote end module is independently demodulated, decodes and measures, and by decoded data and measurement
Information is sent to local module and processes in IP messages form by the ethernet switching module.
6. the method as described in claim 4 or 5, it is characterised in that the cell data can be included：Cell system message,
One or more in each transmission channel and/or physical channel data.
7. the method as described in claim 4 or 5, it is characterised in that also include：
During downlink transfer, n-hour is received after HARQ progress feedbacks, and LTE base station is transmitted next time in N+m；MAC is carried out in advance
MAC data is dispatched and prepared to downlink radio resource；
During uplink, if can in time receive once whether transmitting uplink data is correctly tied at the ascending resource scheduling moment
Really, then normal process is carried out；If whether to be just not timely received once transmitting uplink data at the ascending resource scheduling moment
True result, then this does not carry out uplink.
8. method as claimed in claim 7, it is characterised in that the 7ms >=m >=4ms.
9. the method as described in claim 4 or 5, it is characterised in that described to eat dishes without rice or wine signal for synchronizing signal.
10. method as claimed in claim 9, it is characterised in that it is described eat dishes without rice or wine signal can by 1588V2 clocks, GPS or
Air interface synchronization mode is synchronized.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091772.6A CN106686763B (en) | 2016-12-01 | 2016-12-01 | LTE base station system and cell merging and splitting method |
| PCT/CN2017/073231 WO2018098903A1 (en) | 2016-12-01 | 2017-02-10 | Lte base station system, and cell merging/splitting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091772.6A CN106686763B (en) | 2016-12-01 | 2016-12-01 | LTE base station system and cell merging and splitting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106686763A true CN106686763A (en) | 2017-05-17 |
| CN106686763B CN106686763B (en) | 2020-06-09 |
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ID=58867209
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| CN201611091772.6A Active CN106686763B (en) | 2016-12-01 | 2016-12-01 | LTE base station system and cell merging and splitting method |
Country Status (2)
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| CN (1) | CN106686763B (en) |
| WO (1) | WO2018098903A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392451A (en) * | 2018-04-18 | 2019-10-29 | 京信通信系统（中国）有限公司 | Base station system |
| CN112235058A (en) * | 2020-10-12 | 2021-01-15 | 江苏亨鑫众联通信技术有限公司 | Standing-wave ratio detection system and method and radio remote unit with system |
| CN112235284A (en) * | 2020-10-12 | 2021-01-15 | 江苏亨鑫众联通信技术有限公司 | Expandable pico-base station system and uplink and downlink data transmission method |
| CN112235804A (en) * | 2020-10-12 | 2021-01-15 | 江苏亨鑫众联通信技术有限公司 | Base station remote unit dynamic grouping method and device, and cell networking method and system |
| CN112636807A (en) * | 2020-12-29 | 2021-04-09 | 京信网络系统股份有限公司 | Baseband remote transmission device, base station, remote coverage unit and wireless coverage system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106766A (en) * | 2007-07-18 | 2008-01-16 | 华为技术有限公司 | Indoor unit and outdoor unit for distributed base station and distributed base station |
| CN102647804A (en) * | 2011-02-21 | 2012-08-22 | 中国移动通信集团公司 | Distributed base station as well as data transmission method and device |
| CN103404226A (en) * | 2013-06-07 | 2013-11-20 | 华为技术有限公司 | Method and device for data transmission |
| CN103731884A (en) * | 2012-10-12 | 2014-04-16 | 华为技术有限公司 | BBU, RRU, data transmission method and wireless access system |
| CN104144529A (en) * | 2013-05-10 | 2014-11-12 | 中国移动通信集团公司 | Far-end radio frequency unit, base band unit and distributed base station |
| WO2016145371A2 (en) * | 2015-03-11 | 2016-09-15 | Phluido, Inc. | Distributed radio access network with adaptive fronthaul |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945399B (en) * | 2010-09-03 | 2013-07-03 | 京信通信系统（中国）有限公司 | Distributed base station |
| EP2761972A4 (en) * | 2011-10-01 | 2015-08-12 | Intel Corp | Remote radio unit (rru) and base band unit (bbu) |
| CN103369727B (en) * | 2012-03-29 | 2016-06-22 | 中国移动通信集团公司 | A kind of radio frequency remote equipment, baseband processing equipment and data transmission method |
-
2016
- 2016-12-01 CN CN201611091772.6A patent/CN106686763B/en active Active
-
2017
- 2017-02-10 WO PCT/CN2017/073231 patent/WO2018098903A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106766A (en) * | 2007-07-18 | 2008-01-16 | 华为技术有限公司 | Indoor unit and outdoor unit for distributed base station and distributed base station |
| CN102647804A (en) * | 2011-02-21 | 2012-08-22 | 中国移动通信集团公司 | Distributed base station as well as data transmission method and device |
| CN103731884A (en) * | 2012-10-12 | 2014-04-16 | 华为技术有限公司 | BBU, RRU, data transmission method and wireless access system |
| CN104144529A (en) * | 2013-05-10 | 2014-11-12 | 中国移动通信集团公司 | Far-end radio frequency unit, base band unit and distributed base station |
| CN103404226A (en) * | 2013-06-07 | 2013-11-20 | 华为技术有限公司 | Method and device for data transmission |
| WO2016145371A2 (en) * | 2015-03-11 | 2016-09-15 | Phluido, Inc. | Distributed radio access network with adaptive fronthaul |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392451A (en) * | 2018-04-18 | 2019-10-29 | 京信通信系统（中国）有限公司 | Base station system |
| CN110392451B (en) * | 2018-04-18 | 2022-07-12 | 京信网络系统股份有限公司 | Base station system |
| CN112235058A (en) * | 2020-10-12 | 2021-01-15 | 江苏亨鑫众联通信技术有限公司 | Standing-wave ratio detection system and method and radio remote unit with system |
| CN112235284A (en) * | 2020-10-12 | 2021-01-15 | 江苏亨鑫众联通信技术有限公司 | Expandable pico-base station system and uplink and downlink data transmission method |
| CN112235804A (en) * | 2020-10-12 | 2021-01-15 | 江苏亨鑫众联通信技术有限公司 | Base station remote unit dynamic grouping method and device, and cell networking method and system |
| CN112235804B (en) * | 2020-10-12 | 2021-08-20 | 江苏亨鑫科技有限公司 | Base station remote unit dynamic grouping method and device, and cell networking method and system |
| CN112636807A (en) * | 2020-12-29 | 2021-04-09 | 京信网络系统股份有限公司 | Baseband remote transmission device, base station, remote coverage unit and wireless coverage system |
| CN112636807B (en) * | 2020-12-29 | 2023-02-28 | 京信网络系统股份有限公司 | Baseband remote transmission device, base station, remote coverage unit and wireless coverage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106686763B (en) | 2020-06-09 |
| WO2018098903A1 (en) | 2018-06-07 |
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