CN108123766B - Information transferring method under system management server and cloud Radio Access Network - Google Patents
Information transferring method under system management server and cloud Radio Access Network Download PDFInfo
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- CN108123766B CN108123766B CN201711489023.3A CN201711489023A CN108123766B CN 108123766 B CN108123766 B CN 108123766B CN 201711489023 A CN201711489023 A CN 201711489023A CN 108123766 B CN108123766 B CN 108123766B
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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
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- Computer Networks & Wireless Communication (AREA)
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- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to information transferring methods under a kind of system management server and a kind of cloud Radio Access Network.Multiple remote radio heads (Remote Radio Head, RRH) connection in the system management server and a network, those RRH are connect with service terminals one or more in the network.The system management server detects the channel quality that every RRH in the network reaches the wave beam of each service terminal in the network, and obtains the communication reliability rank of each service terminal.Beam set needed for the system management server determines each service terminal according to the communication reliability rank that each wave beam of detecting reaches the channel quality of each service terminal and each service terminal of acquisition so that the data packet that every RRH is transmitted and received by the wave beam in selected beam set in the network to the service terminal in the network.The present invention be conducive to improve cloud wireless access network communication system medium wave beam to service terminal channel quality reliability.
Description
Technical field
The present invention relates to believe under the communications field more particularly to a kind of system management server and a kind of cloud Radio Access Network
Cease transmission method.
Background technique
The existing small base station cloth based on cloud wireless access network (Cloud Radio Access Network, C-RAN) framework
Net, mostly to increase based on system ovelay range and power system capacity, more options reduce minizone to the greatest extent and repeat to cover during arranging net
The method of cover area increases the coverage area of whole system.In this way under the conditions of the base station of identical quantity, system is entirely covered
Lid range can accomplish maximum.But in the environment of industrial production, the coverage area of system is not most important considerations, and
The communication quality of all devices in whole system institute coverage area is what we to be paid attention to.However wireless channel is often
Change with the environmental change of surrounding, when and there is the case where communication quality decline or even communication disruption, this will cause system
Channel quality is unreliable, and then influences the normal production run of factory.
Summary of the invention
In view of the foregoing, it is necessary to provide a kind of system management server to improve cloud wireless access network communication system
The reliability of channel quality.
A kind of system management server, for in a network multiple remote radio heads (Remote Radio Head,
RRH it) connects, those RRH are connect with service terminals one or more in the network, which includes that processing is single
Member, the processing unit are used for:
Obtain the service terminal and RRH for including in the network；
Every RRH that control obtains sends wave beam instruction and guide signal to each service terminal in the network, and receives each
The information of service terminal feedback is with the wave beam of an every RRH each service terminal into the network of determination；
Detect the channel quality that every RRH in the network reaches the wave beam of each service terminal；
The communication reliability rank of each service terminal is obtained, and each service terminal is reached according to every RRH of detecting
The channel quality of wave beam and the communication reliability rank of each service terminal of acquisition determine the beam collection of each service terminal
It closes；And
Figuration vector corresponding to wave beam in the velocity of wave set of determining each service terminal and data packet are sent to
RRH corresponding with the wave beam that those are determined in the network.
Preferably, it is by by the wave beam and the service that every RRH, which reaches the channel quality of the wave beam of each service terminal,
The bit error rate that terminal carries out noise when the transmitted signal of the channel of the channel of signal transmission is indicated.
Preferably, which is stored in advance a reliability relation table, which defines the net
The corresponding relationship of the communication reliability rank of each service terminal and each service terminal in network, the processing unit is by searching for this
Reliability relation table obtains the communication reliability rank of each service terminal.
Preferably, which is also previously stored with a beam collection relation table, beam collection relation table definition
The channel quality of each service terminal, the communication reliability rank of each service terminal and each service terminal carry out in the network
The corresponding relationship of the quantity of wave beam needed for signal transmission, the processing unit is according to the reliable communications of each service terminal of acquisition
The channel quality of degree rank and each service terminal searches the beam collection relation table and carries out signal biography with each service terminal of determination
The destination number of defeated required wave beam, and will according to the channel quality that every RRH of detecting reaches the wave beam of each service terminal
Those wave beams are chosen the destination number wave beam that channel quality sorts forward and are constituted after being ranked up according to the height of channel quality
The beam set of each service terminal.
Preferably, every RRH reaches each service terminal in the network according to the channel quality of each service terminal
Wave beam channel quality weighted average after the instruction of calculated channel quality (Channel quality indicator,
CQI)。
Preferably, which reaches each service terminal in the network according to a RRH every in the network of detecting
The channel quality of wave beam judges whether there is the requirement that wave beam is unsatisfactory for default communication quality, and is determining that have wave beam to be unsatisfactory for this pre-
If according to the communication reliability grade of the channel quality of each service terminal and each service terminal of acquisition when QoS requirement
The beam set of each service terminal is not updated.
Information transferring method under a kind of cloud Radio Access Network, is applied in a system management server, multiple remote radios
In the network that head (Remote Radio Head, RRH) and multiple service terminals are constituted, the system management server and those RRH
Connection, those RRH are connect with service terminals one or more in the network, and the method comprising the steps of:
Obtain the service terminal and RRH for including in the network；
Every RRH that control obtains sends wave beam instruction and guide signal to the service terminal in the network, and receives each service
The information of terminal feedback is with the wave beam of an every RRH each service terminal into the network of determination；
Detect the channel quality that every RRH in the network reaches the wave beam of each service terminal；
The communication reliability rank of each service terminal is obtained, and each service terminal is reached according to every RRH of detecting
The channel quality of wave beam and the communication reliability rank of each service terminal of acquisition determine the beam collection of each service terminal
It closes；And
Figuration vector corresponding to wave beam in the velocity of wave set of determining each service terminal and data packet are sent to
RRH corresponding with the wave beam that those are determined in the network.
Preferably, it is by by the wave beam and the service that every RRH, which reaches the channel quality of the wave beam of each service terminal,
The bit error rate that terminal carries out noise when the transmitted signal of the channel of the channel of signal transmission is indicated.
Preferably, this method comprises:
The communication reliability rank of each service terminal is obtained by searching for a reliability relation table, wherein the reliability
Relation table is stored in advance in system management server, which defines each service terminal and each clothes in the network
The corresponding relationship of the communication reliability rank for terminal of being engaged in.
Preferably, this method comprises:
One is searched according to the channel quality of the communication reliability rank of each service terminal of acquisition and each service terminal
The destination number of wave beam needed for beam collection relation table carries out signal transmission with each service terminal of determination, wherein the beam collection
Relation table is stored in advance in the system management server, which defines the letter of each service terminal in the network
The quantity of wave beam needed for road quality, the communication reliability rank of each service terminal and each service terminal carry out signal transmission
Corresponding relationship；
The channel quality of the wave beam of each service terminal is reached by those wave beams according to channel matter according to every RRH of detecting
The height of amount is ranked up；And
Choose the beam set that the destination number wave beam that channel quality sorts forward constitutes the service terminal.
Preferably, every RRH reaches each service terminal in the network according to the channel quality of each service terminal
Wave beam channel quality weighted average after the instruction of calculated channel quality (Channel quality indicator,
CQI)。
Preferably, this method further include:
The channel quality judgement of the wave beam of each service terminal in the network is reached according to a RRH every in the network of detecting
Whether there is wave beam to be unsatisfactory for the requirement of default communication quality；And
It according to the channel quality of each service terminal and is obtained when determining has wave beam to be unsatisfactory for the default QoS requirement
The beam set of each service terminal of communication reliability grade renewal of each service terminal taken.
Preferably, this method further include:
Every RRH receives the wave beam forming vector and data packet of system management server transmission in the network；
The aerial array of the every RRH of wave beam forming vector majorization generates corresponding with the wave beam forming vector based on the received
Wave beam；And
Received data packet is sent to service terminal pointed by the wave beam by the wave beam of generation.
Preferably, this method further include:
After each service terminal in the network receives the data of the wave beam transmission determined by the system management server
Whether detect has Bale No. to mark identical data in the received data；And
When marking identical data there are Bale No. in detecting received data, identical data are marked to delete Bale No.
It removes, to reduce the redundancy of the service terminal data.
Can be reached according to each wave beam of detecting in the present invention each service terminal channel quality and acquisition it is each
Beam set needed for the communication reliability rank of service terminal determines each service terminal, and keep every RRH in network logical
The data packet of the wave beam transmitting and receiving in selected beam set is crossed to the service terminal in the network, so that it is wireless to improve cloud
Access the reliability of the channel quality of network communication system.
Detailed description of the invention
Fig. 1 is the running environment figure of the information transmission system under an embodiment of the present invention medium cloud Radio Access Network.
Fig. 2 is the module map of system management server in an embodiment of the present invention.
Fig. 3 is the module map of RRH in an embodiment of the present invention.
Fig. 4 is the module map of the information transmission system under an embodiment of the present invention medium cloud Radio Access Network.
Fig. 5 is the schematic diagram of reliability relation table in an embodiment of the present invention.
Fig. 6 is the schematic diagram of beam collection relation table in an embodiment of the present invention.
Fig. 7 is the flow chart of information transmission system method under an embodiment of the present invention medium cloud Radio Access Network.
Main element symbol description
| The information transmission system under cloud Radio Access Network | 100 |
| RRH | 2 |
| Service terminal | 3 |
| First storage unit | 11 |
| First processing units | 12 |
| Receiver | 13 |
| Transmitter | 14 |
| Aerial array | 21 |
| Second storage unit | 22 |
| The second processing unit | 23 |
| Terminal obtains module | 101 |
| Wave beam instructs and guides module | 102 |
| Channel quality detecting module | 103 |
| Wave beam chosen module | 104 |
| Sending module | 105 |
| Transceiver module | 106 |
| Update module | 107 |
| Reliability relation table | T1 |
| Beam collection relation table | T2 |
| Step | S701~S706 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Referring to FIG. 1, showing the fortune of the information transmission system 100 under an embodiment of the present invention medium cloud Radio Access Network
Row environment map.The information transmission system 100 is applied in a system management server 1, the drawing of multiple radio frequencies under the cloud Radio Access Network
In the network that remote head (Remote Radio Head, RRH) 2 and multiple service terminals 3 are constituted.In present embodiment, the cloud is wireless
The information transmission system 100 operates in the system management server 1 and/or RRH 2 under access network.The system management server
1 is connect by optical fiber with those RRH 2.Those RRH 2 one or more service terminals 3 in mode and network by wireless communication
Connection, wherein the communication can be microwave communication mode.The system management server 1 can be a wireless access
Network server, or the server cluster being made of multiple wireless interface network servos.The service terminal 3 can be machine
The automated production equipments such as arm or robot.In other embodiments, which can also be mobile phone, a
The equipment such as personal digital assistant or handheld computer.
Under the cloud Radio Access Network information transmission system 100 for control system management server 1 by wave beam forming to
Amount and data packet send all RRH 2 being connected with the system management server 1 in the network to.Every RRH 2 is according to connecing
The wave beam forming vector of receipts generates multiple wave beams.Every RRH 2 has carried out the service terminal 3 in the network by those wave beams
Whole covering is simultaneously communicated to connect by an at least service terminal 3 in those wave beams and the network.Wherein, each 3 meeting of service terminal
It is covered by the wave beam that at least a RRH 2 emits in the network.Every RRH 2 is wirelessly penetrating for distribution setting in present embodiment
Frequency base station, the service for receiving the information of the system management server 1 transmission, and into radio frequency signal coverage area are whole
The information that end 3 transmits and receives.In present embodiment, which further detects every RRH 2 in network and reaches service terminal
The channel quality information of 3 wave beam simultaneously determines the wave beam for meeting channel quality requirement according to the channel quality information of the wave beam of detecting
Set, and controlling RRH 2 corresponding with those wave beams by the wave beam in determining beam set will be in system management server 1
Data packet send the service terminal 3 in network to.
Referring to FIG. 2, the module map for system management server 1 in an embodiment of the present invention.The system administration
Server 1 includes the first storage unit 11, first processing units 12, receiver 13 and transmitter 14.First storage unit 11,
Receiver 13 and transmitter 14 are electrically connected with the first processing units 12 respectively.It will be understood to those skilled in the art that Fig. 2
Shown in the structure of system management server 1 do not constitute the restriction to system management server 1, may include than illustrating more
More or less component perhaps combines certain components or different component layouts.
First storage unit 11 is used for the program code and data of system management memory server 1.In present embodiment,
First storage unit 11 can be the internal storage unit of the system management server 1, such as the system management server 1
Hard disk or memory.In another embodiment, the outside of first storage unit 11 or the system management server 1 is deposited
The plug-in type hard disk being equipped in storage equipment, such as the system management server 1, intelligent memory card (Smart Media Card,
SMC), secure digital (Secure Digital, SD) blocks, flash card (Flash Card) etc..In present embodiment, this is at first
Managing unit 12 can be a central processing unit (Central Processing Unit, CPU), at microprocessor or other data
Chip is managed, which is used to execute the software program code or operational data in the system management server 1.
The receiver 13 is used to receive the upstream signals that RRH 2 is sent, the uplink by the optical fiber between RRH 2
Transmitting signal is to be sent to RRH 2 by the service terminal 3 in network.The transmitter 14 can pass through the optical fiber between RRH 2
Data in system management server 1 are transmitted to RRH 2.
Referring to FIG. 3, showing the functional block diagram of RRH 2 in an embodiment of the present invention.The RRH 2 includes antenna array
Column 21, the second storage unit 22 and the second processing unit 23.The RRH 2 will be from system management server by the aerial array 21
1 received data are sent to service terminal 3.Second storage unit 22 is used to store the program code and data in RRH 2.This
In embodiment, which can be the internal storage unit of the RRH 2, such as the hard disk or interior of the RRH 2
Deposit or the RRH 2 on the plug-in type hard disk that is equipped with, intelligent memory card (Smart Media Card, SMC), secure digital
(Secure Digital, SD) card, flash card (Flash Card) etc..In present embodiment, which can be with
For a central processing unit (Central Processing Unit, CPU), microprocessor or other data processing chips, this second
Processing unit 23 is used to execute the software program code or operational data in the RRH 2.
Referring to FIG. 4, showing the function of the information transmission system 100 under an embodiment of the present invention medium cloud Radio Access Network
It can module map.In present embodiment, the information transmission system 100 includes that terminal obtains module 101, wave under the cloud Radio Access Network
Beam instructs and guides module 102, channel quality detecting module 103, wave beam chosen module 104, sending module 105 and transceiver module 106.This
Inventing so-called module is the series of computation machine program instruction section for referring to complete specific function, than program more suitable for description
The implementation procedure of software in this system 100.In present embodiment, module 101-105 is stored in system management server 1
In first storage unit 11 and performed by the first processing units of system management server 1 12, module 106 is stored in RRH
In 2 the second storage unit 22 and performed by the second processing unit of RRH 2 23.
The terminal obtains module 101, applies in the system management server 1, for obtaining the clothes for including in the network
Terminal 3 of being engaged in and RRH2.
The wave beam instructs and guides every RRH 2 that module 102 controls in the network and sends wave beam instruction and guide signal in the network
Each service terminal 3, and the information that each service terminal 3 is fed back is received to determine every RRH 2 in the network to the network
In each service terminal 3 wave beam.For example, in one embodiment, determining RRH 2 in network when terminal obtains module 101
Number be i and network in the number of service terminal 3 when being j, which instructs and guides every RRH in the control of module 102 network
2 send wave beam instruction and guide signal to the j service terminal 3 in the network, and receive the information of the j service terminal 3 feedback with true
The wave beam of each service terminal 3 into the network of i RRH 2 in the fixed network.In present embodiment, pass through RRH send wave
Beam instruction and guide signal determined RRH to terminal to wave beam needed for terminal be technological means commonly used in the art, here no longer in detail
Description.
The channel quality detecting module 103, is applied in the system management server 1, for detecting every RRH in network
2 reach the channel quality of the wave beam of each service terminal 3 in the network.In present embodiment, every RRH 2 reaches each clothes
The channel quality of the wave beam for terminal 3 of being engaged in is that the noise of the channel of signal transmission is carried out by the wave beam and the service terminal 3 when
The bit error rate of the transmitted signal of the channel.In present embodiment, each service terminal 3, which can measure, reaches each service terminal
The bit error rate of the noise of the channel of 3 each wave beam when the transmitted signal of channel of each wave beam, and each wave that will be measured
The noise of the channel of beam when the transmitted signal of channel of each wave beam the bit error rate by with each 3 company of communicating of service terminal
The RRH 2 connect sends the system management server 1 to.The channel quality detecting module 103 is each in the network by obtaining
Every RRH 2 that service terminal 3 is sent reaches noise when wave of the channel of the wave beam of each service terminal 3 in the network
The bit error rate of the transmitted signal of the channel of beam detects every RRH 2 in network and reaches each service terminal 3 in the network
The channel quality of wave beam.
The wave beam chosen module 104, is applied in the system management server 1, and the communication for obtaining each service terminal 3 can
By spending rank, and the channel quality of each service terminal 3 and each service terminal 3 of acquisition are reached according to each wave beam of detecting
Communication reliability rank determine each service terminal 3 needed for beam set.In present embodiment, the system management server
1 is stored in advance a reliability relation table T1, and it is whole that reliability relation table T1 defines each service terminal 3 and each service in network
The corresponding relationship of the communication reliability rank at end 3.The wave beam chosen module 104 obtains every by searching for the reliability relation table T1
The communication reliability rank of one service terminal 3.Referring to FIG. 5, showing reliability relation table T1 in an embodiment of the present invention
Schematic diagram.In present embodiment, the communication reliability rank of each service terminal 3 includes the first order and the second level, wherein
The requirement of the communication reliability of level-one is higher than the requirement of the communication reliability of the second level.
In present embodiment, which is also previously stored with a beam collection relation table T2, which closes
It is the communication reliability rank that table T2 relation table defines the channel quality of each service terminal 3 in network, each service terminal 3
And each service terminal 3 carries out the corresponding relationship of the quantity of the required wave beam of signal transmission.The wave beam chosen module 104 is according to obtaining
The communication reliability rank of each service terminal 3 taken and the channel quality of each service terminal 3 search the beam collection relation table
T2 determines that each service terminal 3 carries out the destination number of the required wave beam of signal transmission.In present embodiment, the service terminal 3
Channel quality according to a RRH 2 every in the network reach the wave beam of each service terminal 3 in the network channel quality calculate
It obtains.Specifically, the channel quality of the service terminal 3 can reach the wave beam of each service terminal 3 according to a RRH 2 every in network
Channel quality weighted average after calculate a channel quality instruction (Channel quality indicator, CQI).It is each
Service terminal 3 sends the CQI to the system management server 1 by communicating the RRH 2 of connection with the service terminal 3.It should
Wave beam chosen module 105 detects each service terminal 3 by the CQI that each service terminal 3 received in the network uploads
The channel quality of wave beam.Wherein, the value range of the CQI is 0-31, and when CQI is 0, channel quality is worst；When CQI is 31
When, channel quality is best.
The wave beam chosen module 104 further reaches often according to every RRH 2 that the channel quality detecting module 103 is detected
The channel quality of the wave beam of one service terminal 3 chooses channel quality after being ranked up those wave beams according to the height of channel quality
The destination number wave beam for sorting forward constitutes the beam set.Referring to FIG. 6, showing wave beam in an embodiment of the present invention
Collect the schematic diagram of relation table T2.Communication reliability rank in present embodiment, in beam collection relation table T2 with service terminal 3
It for the first order and be the destination number that CQI value is 25 corresponding wave beams with the channel quality of service terminal 3 is 3.When the wave beam
Chosen module 104 searches the beam collection relationship according to the communication reliability rank of service terminal 3 and the channel quality of service terminal 3
When the destination number that table T2 determines that service terminal 3 is wave beam needed for reaching communication reliability is 3, the wave beam chosen module 104
The channel quality of the wave beam of each service terminal 3 is further reached according to a RRH 2 every in network by those wave beams according to wave beam
Communication quality height be ranked up after choose serial number sort preceding 3 wave beam constitute the beam set.
The sending module 105, is applied in the system management server 1, every for selecting wave beam chosen module 104
Figuration vector corresponding to wave beam in the beam set of one service terminal 3 and data packet are sent in the network selected with those
The corresponding RRH 2 of wave beam.In present embodiment, which is made of multiple data segments, and each data segment includes for marking
Know the Bale No. label of the data segment.
The transceiver module 106, using the wave in RRH 2 in a network, sent for receiving the system management server 1
Beam figuration vector and data packet.The aerial array 21 of the transceiver module 106 wave beam forming vector majorization RRH 2 based on the received
Wave beam corresponding with the wave beam forming vector is generated, and received data packet is sent to wave beam meaning by the wave beam by generating
To service terminal 3.In present embodiment, the wave beam forming vector include the frequency of wave beam, wave beam send time interval and
The directional information of wave beam, the direction service terminal 3 which generates according to wave beam forming vector majorization aerial array 21
The frequency of wave beam, the direction of the transmission time interval of wave beam and wave beam it is different.The transceiver module 106 passes through each different frequencies
The multi-beam transmission data packet of rate, different transmission time intervals and different directions is to avoid the interference between wave beam.
As previously mentioned, the data packet is made of multiple data segments in present embodiment, each data segment includes for identifying
The Bale No. of the data segment marks.Each service terminal 3 in the network is received to be passed by the wave beam that wave beam chosen module 104 is selected
Whether detect after the data sent has Bale No. to mark identical data in the received data.Each service terminal 3 in the network
When marking identical data there are Bale No. in detecting received data, identical data are marked to delete Bale No., to subtract
The redundancy of few 3 data of service terminal.In present embodiment, each service terminal 3 in the network can also be according to label to reception
The data packet rearrangement arrived.
In present embodiment, the information transmission system 100 further includes a update module 107 under the cloud Radio Access Network, should
Update module 107 is applied in the network in the system management server 1, for being detected according to the channel quality detecting module 103
The channel quality that every RRH 2 reaches the wave beam of each service terminal 3 in network judges whether there is wave beam and is unsatisfactory for default lead to
Believe the requirement of quality, and when determining has wave beam to be unsatisfactory for default QoS requirement according to the channel matter of each service terminal 3
Beam set needed for each service terminal 3 of communication reliability grade renewal of amount and each service terminal 3 obtained.This implementation
In mode, it is pre- which can transmit information requirement according to the information transmission system 100 under cloud Radio Access Network
First set.
Referring to FIG. 7, showing information transmission system method under an embodiment of the present invention medium cloud Radio Access Network
Flow chart.This method is applied in the network that a system management server 1, multiple RRH 2 and multiple service terminals 3 are constituted.It should
System management server 1 is connect by optical fiber with those RRH 2.Those RRH 2 are by wireless communication one in mode and network
Or multiple service terminals 3 connect.According to different demands, the sequence of step be can change in the flow chart, and certain steps can save
Slightly or merge.The method comprising the steps of:
S701: system management server 1 obtains the service terminal and RRH for including in network.
S702: system management server 1 controls every RRH 2 in the network and sends wave beam instruction and guide signal in the network
Each service terminal 3, and receive the information that each service terminal 3 is fed back to determine every RRH 2 in the network to the net
The wave beam of each service terminal 3 in network.In present embodiment, wave beam is sent by RRH and instructs and guides signal to terminal to determine RRH
Wave beam needed for terminal is technological means commonly used in the art, is not detailed herein.
S703: system management server 1 detects every RRH 2 in network and reaches each service terminal 3 in the network
The channel quality of wave beam.
In present embodiment, every RRH 2 reach the wave beam of each service terminal 3 channel quality be by the wave beam with
The service terminal 3 carries out the bit error rate of noise when the transmitted signal of the channel of the channel of signal transmission.In present embodiment,
Each service terminal 3 can measure the letter for reaching the noise of the channel of each wave beam of each service terminal 3 when each wave beam
The bit error rate of the transmitted signal in road, and by the transmitted letter of channel of the noise of the channel of each wave beam measured when each wave beam
Number the bit error rate system management server 1 is sent to by the RRH 2 for communicating connection with each service terminal 3.The system
Management server 1 reaches each clothes in the network by every RRH 2 that each service terminal 3 obtained in the network is sent
The bit error rate of noise when the transmitted signal of channel of the wave beam of the channel of the wave beam for terminal 3 of being engaged in, detects each in network
RRH 2 reaches the channel quality of the wave beam of each service terminal 3 in the network.
S704: system management server 1 obtains the communication reliability rank of each service terminal 3, and according to the every of detecting
One wave beam reaches the channel quality of each service terminal 3 and the communication reliability rank of each service terminal 3 of acquisition determines
Beam set needed for each service terminal 3.
In present embodiment, which is stored in advance a reliability relation table T1, the reliability relation table
T1 defines the corresponding relationship of each service terminal 3 and the communication reliability rank of each service terminal 3 in network.The system administration
Server 1 determines the communication reliability rank of each service terminal 3 by searching for reliability relation table T1.Referring to FIG. 5, every
The communication reliability rank of one service terminal 3 includes the first order and the second level, and wherein the requirement of the communication reliability of the first order is high
In the requirement of the communication reliability of the second level.
In present embodiment, which is also previously stored with a beam collection relation table T2, which closes
It is the communication reliability rank that table T2 relation table defines the channel quality of each service terminal 3 in network, each service terminal 3
And each service terminal 3 carries out the corresponding relationship of the quantity of the required wave beam of signal transmission.The system management server 1 is according to obtaining
The communication reliability rank of each service terminal 3 taken and the channel quality of each service terminal 3 search the beam collection relation table
T2 determines that each service terminal 3 carries out the destination number of the required wave beam of signal transmission.In present embodiment, the service terminal 3
Channel quality be calculated according to the channel quality of a RRH 2 every in the network wave beam for reaching the service terminal 3.Specifically
, the channel quality of the service terminal 3 can reach the wave beam of each service terminal 3 in the network according to a RRH 2 every in network
Channel quality weighted average after calculate a channel quality instruction (Channel quality indicator, CQI).It is each
Service terminal 3 sends the CQI to the system management server 1 by communicating the RRH 2 of connection with the service terminal 3.It should
System management server 1 detects each service terminal 3 by the CQI that each service terminal 3 received in the network uploads
The channel quality of wave beam.Wherein, the value range of the CQI is 0-31, and when CQI is 0, channel quality is worst；When CQI is 31
When, channel quality is best.
In present embodiment, which further reaches each service eventually according to every RRH 2 of detecting
The channel quality of the wave beam at end 3 chooses channel quality sequence after being ranked up those wave beams according to the height of channel quality forward
Destination number wave beam constitute the beam set.Referring to FIG. 6, in present embodiment, in beam collection relation table T2 with clothes
The communication reliability rank of business terminal 3 is the first order and be CQI value with the channel quality of service terminal 3 is 25 corresponding wave beams
Destination number be 3.When the system management server 1 is according to the communication reliability rank of service terminal 3 and the letter of service terminal 3
Road quality searches beam collection relation table T2 and determines that service terminal 3 is that the destination number of wave beam needed for reaching communication reliability is
When 3, the system management server 1 is further according to the letter for the wave beam for reaching each service terminal 3 in every RRH 2 in network
Road quality chooses serial number sequence preceding 3 wave beam after being ranked up those wave beams according to the height of the communication quality of wave beam is constituted should
Beam set.
S705: system management server 1 is by tax corresponding to the wave beam in the beam set of selected each service terminal 3
Shape vector and data packet are sent in the network RRH 2 corresponding with those selected wave beams.In present embodiment, the data packet
It is made of multiple data segments, each data segment includes marking for identifying the Bale No. of the data segment.
S706: every RRH 2 receives the wave beam forming vector and data packet of the system management server 1 transmission in network,
Wave beam forming vector majorization aerial array 21 generates wave beam corresponding with the wave beam forming vector based on the received, and passes through generation
Wave beam received data packet is sent to service terminal 3 pointed by the wave beam.
In present embodiment, which includes the time interval and wave beam of the frequency of wave beam, wave beam transmission
Directional information, the direction service terminal 3 that every RRH 2 is generated according to wave beam forming vector majorization aerial array 21 in the network
The direction of the frequency of wave beam, the transmission time interval of wave beam and wave beam is different.Every RRH 2 passes through each difference in the network
The multi-beam transmission data packet of frequency, different transmission time intervals and different directions is to avoid the interference between wave beam.
In one embodiment, this method further comprises the steps of: each service terminal 3 in the network and receives by system pipes
Whether detect after the data of the selected wave beam transmission of reason server 1 has Bale No. to mark identical data in the received data；And
When marking identical data there are Bale No. in detecting received data, identical data are marked to delete Bale No., to subtract
The redundancy of few 3 data of service terminal.In present embodiment, each service terminal 3 in the network can also be according to label to reception
The data packet rearrangement arrived.
In one embodiment, this method further comprises the steps of: system management server 1 and is arrived according to a RRH 2 every in network
Channel quality up to the wave beam of each service terminal 3 in network judges whether there is wave beam and is unsatisfactory for wanting for default communication quality
It asks；And when determining has wave beam to be unsatisfactory for default QoS requirement according to the channel quality of each service terminal 3 and acquisition
Beam set needed for each service terminal 3 of the communication reliability grade renewal of each service terminal 3.It, should in present embodiment
Default QoS requirement can transmit information requirement according to the information transmission system 100 under cloud Radio Access Network and be set in advance
It is fixed.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to the above preferred embodiment pair
The present invention is described in detail, those skilled in the art should understand that, technical solution of the present invention can be carried out
Modification or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of system management server, for in a network multiple remote radio heads (Remote Radio Head,
RRH it) connects, those RRH are connect with service terminals one or more in the network, which includes that processing is single
Member, which is characterized in that a reliability relation table and a beam collection relation table, the reliability is stored in advance in the system management server
Relation table defines the corresponding relationship of the communication reliability rank of each service terminal and each service terminal in the network, the wave beam
Collection relation table defines the channel quality of each service terminal in the network, the communication reliability rank of each service terminal and each
The corresponding relationship of the quantity of wave beam needed for service terminal carries out signal transmission, the processing unit are used for:
Obtain the service terminal and RRH for including in the network；
Every RRH that control obtains sends wave beam instruction and guide signal to each service terminal in the network, and receives each service
The information of terminal feedback is with the wave beam of an every RRH each service terminal into the network of determination；
Detect the channel quality that every RRH in the network reaches the wave beam of each service terminal；
The communication reliability rank of each service terminal is obtained by searching for the reliability relation table；
The wave beam is searched according to the channel quality of the communication reliability rank of each service terminal of acquisition and each service terminal
Collect the destination number of wave beam needed for relation table carries out signal transmission with each service terminal of determination, the destination number wave beam structure
At the beam set of each service terminal, wherein every RRH is reached in the network according to the channel quality of each service terminal
Calculated channel quality indicates (Channel quality after the channel quality weighted average of the wave beam of each service terminal
indicator,CQI)；And
Figuration vector corresponding to wave beam in the beam set of determining each service terminal and data packet are sent to the net
RRH corresponding with the wave beam that those are determined in network.
2. the system as claimed in claim 1 management server, which is characterized in that every RRH reaches the wave of each service terminal
The channel quality of beam is when the channel is passed by the noise of channel by the wave beam and service terminal progress signal transmission
The bit error rate of defeated signal is indicated.
3. system management server as claimed in claim 2, which is characterized in that the processing unit is according to every RRH of detecting
Reach the wave beam of each service terminal channel quality those wave beams are ranked up according to the height of channel quality after choose letter
Quality-ordered forward destination number wave beam in road constitutes the beam set of each service terminal.
4. system management server a method according to any one of claims 1-3, which is characterized in that the processing unit should according to detecting
The channel quality that every RRH reaches the wave beam of each service terminal in the network in network judges whether there is wave beam and is unsatisfactory for presetting
The requirement of communication quality, and when determining has wave beam to be unsatisfactory for the default QoS requirement according to the channel of each service terminal
The beam set of each service terminal of communication reliability grade renewal of quality and each service terminal of acquisition.
5. information transferring method under a kind of cloud Radio Access Network is applied in a system management server, multiple remote radio heads
In the network that (Remote Radio Head, RRH) and multiple service terminals are constituted, the system management server and those RRH connect
It connects, those RRH are connect with service terminals one or more in the network, which is characterized in that the method comprising the steps of:
Obtain the service terminal and RRH for including in the network；
Every RRH that control obtains sends wave beam instruction and guide signal to the service terminal in the network, and receives each service terminal
The information of feedback is with the wave beam of an every RRH each service terminal into the network of determination；
Detect the channel quality that every RRH in the network reaches the wave beam of each service terminal；
The communication reliability rank of each service terminal is obtained by searching for a reliability relation table, wherein the reliability relationship
Table is stored in advance in the system management server, which defines each service terminal and each service in the network
The corresponding relationship of the communication reliability rank of terminal；
A wave beam is searched according to the channel quality of the communication reliability rank of each service terminal of acquisition and each service terminal
Collect the destination number of wave beam needed for relation table carries out signal transmission with each service terminal of determination, and the destination number wave beam
Constitute the beam set of each service terminal, wherein the beam collection relation table is stored in advance in the system management server, should
Beam collection relation table define the channel quality of each service terminal in the network, each service terminal communication reliability rank and
The corresponding relationship of the quantity of wave beam needed for each service terminal carries out signal transmission, wherein the channel matter of each service terminal
Calculated letter after the channel quality that every RRH reaches the wave beam of each service terminal in the network according to amount is weighted and averaged
Road quality indicates (Channel quality indicator, CQI)；And
Figuration vector corresponding to wave beam in the beam set of determining each service terminal and data packet are sent to the net
RRH corresponding with the wave beam that those are determined in network.
6. information transferring method under cloud Radio Access Network as claimed in claim 5, which is characterized in that every RRH reaches every
The channel quality of the wave beam of one service terminal is the noise by carrying out the channel of signal transmission by the wave beam and the service terminal
When the bit error rate of the transmitted signal of the channel is indicated.
7. information transferring method under cloud Radio Access Network as claimed in claim 6, which is characterized in that this method comprises:
The channel quality of the wave beam of each service terminal is reached by those wave beams according to channel quality according to every RRH of detecting
Height is ranked up；And
Choose the beam set that the destination number wave beam that channel quality sorts forward constitutes the service terminal.
8. information transferring method under the cloud Radio Access Network as described in claim 5-7 is any, which is characterized in that this method is also
Include:
Judged whether according to the channel quality that a RRH every in the network of detecting reaches the wave beam of each service terminal in the network
There is wave beam to be unsatisfactory for the requirement of default communication quality；And
When determining has wave beam to be unsatisfactory for the default QoS requirement according to the channel quality of each service terminal and acquisition
The beam set of each service terminal of communication reliability grade renewal of each service terminal.
9. information transferring method under cloud Radio Access Network as claimed in claim 5, which is characterized in that this method further include:
Every RRH receives the wave beam forming vector and data packet of system management server transmission in the network；
The aerial array of the every RRH of wave beam forming vector majorization generates wave corresponding with the wave beam forming vector based on the received
Beam；And
Received data packet is sent to service terminal pointed by the wave beam by the wave beam of generation.
10. information transferring method under cloud Radio Access Network as claimed in claim 5, which is characterized in that this method further include:
Each service terminal in the network detects after receiving the data that the wave beam determined by the system management server transmits
Whether there is Bale No. to mark identical data in the received data；And
When marking identical data there are Bale No. in detecting received data, identical data are marked to delete Bale No., from
And reduce the redundancy of the service terminal data.
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| CN101729457B (en) * | 2008-10-17 | 2013-01-09 | 上海交通大学 | Dynamic subcarrier associated limit bit feedback and dispatching method |
| CN103516410B (en) * | 2012-06-19 | 2018-03-02 | 中兴通讯股份有限公司 | One kind realizes downlink data launching technique and device using active antenna system |
| CN102832982B (en) * | 2012-08-08 | 2015-01-07 | 华为技术有限公司 | Base station with MIMO accelerator and control method thereof |
| US10165499B2 (en) * | 2014-07-25 | 2018-12-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Beam set operation in a wireless network node |
| DE102015111638B4 (en) * | 2015-07-17 | 2023-01-05 | Apple Inc. | beam shaping device |
| CN106961296A (en) * | 2016-01-08 | 2017-07-18 | 北京信威通信技术股份有限公司 | A kind of open loop multi-antenna sending method |
| US10700752B2 (en) * | 2016-01-14 | 2020-06-30 | Samsung Electronics Co., Ltd. | System, method, and apparatus of beam-tracking and beam feedback operation in a beam-forming based system |
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Effective date of registration: 20221125 Address after: 735, Floor 7, Building B, Tianhui Building, Yousong Road, Longhua Office, Longhua New District, Shenzhen, Guangdong 518131 Patentee after: Shenzhen Zhilian Cloud Network Technology Co.,Ltd. Address before: 518109 3rd floor, building 1, F8B, Foxconn Science Park, No.2, Donghuan 2nd Road, Longhua street, Longhua District, Shenzhen City, Guangdong Province Patentee before: FUHUAKE PRECISION INDUSTRY (SHENZHEN) Co.,Ltd. |