CN110463266A - Control equipment, client device, network node and its method for served beams selection - Google Patents
Control equipment, client device, network node and its method for served beams selection Download PDFInfo
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- CN110463266A CN110463266A CN201780089012.8A CN201780089012A CN110463266A CN 110463266 A CN110463266 A CN 110463266A CN 201780089012 A CN201780089012 A CN 201780089012A CN 110463266 A CN110463266 A CN 110463266A
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000004891 communication Methods 0.000 claims abstract description 51
- 238000004590 computer program Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 163
- 238000012545 processing Methods 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 6
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 27
- 230000006870 function Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
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- 238000013468 resource allocation Methods 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
- H04W36/085—Reselecting an access point involving beams of access points
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0094—Definition of hand-off measurement parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of control equipment (100) for being used for wireless communication system (600), it is configured as receiving the first channel quality reporting of the first beam forming link (602) between the first access point (300a) and client device (500).First beam forming link (602) is the service link of client device (500).Control equipment (100) is additionally configured to receive second channel quality report from the second beam forming link (604) each of between each second access point (300b) and client device (500).Each second beam forming link (604) is the non-service link of client device (500).Control equipment (100) is additionally configured to determine that link redirects instruction (LRI) based on the first channel quality reporting and second channel quality report.It includes the instruction for the service link of client device (500) to be redirected to one of second beam forming link (604) from the first beam forming link (602) that link, which redirects instruction (LRI),.Control equipment (100), which is additionally configured to redirect link, instructs (LRI) to be transmitted to the first access point (300a), and link is redirected instruction (LRI) and is transmitted to one of second access point (300b).Moreover, it relates to the second access point (300b), client device (500), corresponding method and computer program.
Description
Technical field
The present invention relates to a kind of control equipment, client device and network nodes.Also, the application further relates to accordingly
Method and computer program.
Background technique
In wireless communication system wireless data service it is significant increase the frontier that has pushed explore in radio-frequency spectrum with
Meets the needs of prediction requires.One causes the field of more and more concerns to be not filling largely in millimeter wave (mmWave) frequency band
Divide the frequency spectrum utilized.Since in the high path of millimeter wave strong point and penetration loss, antenna beam is formed in mmWave frequency band and builds
It stands and maintains to have played important function in steady communication link.
Therefore, mmWave communication link is included within the narrow wave of downlink and uplink space of mmWave frequency band transmission
The signal (wave beam) of beam shaping.The high spatial directive property of this wave beam and the high free space attenuation of mmWave signal are wanted in principle
Seek the free sight between transmitter and corresponding receiver.If unexpected barrier interrupts sight, for example, due to transmitter, connect
The movement of the object around device or transmitter or receiver is received, receiver will be blocked.Therefore, receiver cannot receive transmission
Signal.This event is commonly referred to as link down.
The higher level application program that link down will lead to the support of this mmWave communication link is interrupted.Although working as in many
It is acceptable for temporarily being interrupted in wireless application, but in such as wireless dummy real (virtual reality, VR) or enhancing
It is really not so in some following applications of real (augmented reality, AR).Video frame rate in VR system is
10ms, thus it is any than this it is longer interruption can all cause VR perception interrupt.VR is simulated it has been shown that only being caused by the hand of user
The average obstruction duration may be up to 245 milliseconds.
Therefore, link down is a huge challenge for mmWave communication link, and problem to be solved is
In order to successfully realize mmWave communication link in a wireless communication system.
Summary of the invention
The purpose of the embodiment of the present invention is that providing a solution, the program can mitigate or solve traditional solution
Defect or problem.
Solve above-mentioned and more purposes by subject matter of the independent claims.This can be found in the dependent claims
Invent further advantageous way of realization.
According to the first aspect of the invention, above-mentioned and more mesh is realized using the control equipment for wireless communication system
, which includes processor and transceiver,
Wherein transceiver is configured as:
The first channel quality reporting of the first beam forming link between the first access point and client device is received,
In the first beam forming link be client device service link；
Each of receive between each second access point and client device the second channel matter of the second beam forming link
Amount report, wherein each second beam forming link is the non-service link of client device；
Wherein processor is configured as:
Determine that link redirects instruction based on the first channel quality reporting and second channel quality report, wherein link is reset
It include for the service link of client device to be redirected to the second beam forming chain from the first beam forming link to instruction
The instruction on one of road；
Wherein transceiver is configured as:
Link is redirected into instruction and is transferred to the first access point；
Link is redirected into instruction and is transferred to one of second access point.
Beam forming link in the disclosure is understood to mean that the communication link with high spatial directive property.
In addition, service link can indicate to carry out between client device and network via access point herein control and/
Or the communication link of data transmission and reception, that is, it is wirelessly transferred.Non-service link can indicate to be not used in client device and net
Control and/or data transmission or received communication link between network.
The many advantages better than traditional solution are provided according to the control device of first aspect.This control equipment it is excellent
Point is that it allows network by means of the channel quality of the one or more second beam forming links of control equipment acquisition, and
Starting link redirects to avoid link failure and/or restores link failure when necessary.Therefore, it is set according to the control of first aspect
It is standby to provide more steady wireless transmission.
In a kind of way of realization according to the control equipment of first aspect, processor is also configured to
If the quality of reception of one of the second beam forming link is higher than the quality of reception of the first beam forming link, select
Select the second beam forming link；
Based on selected second beam forming link, determine that link redirects instruction.
One advantage of the way of realization is can the first beam forming between client device and the first access point
The channel quality of link starts to initiate link redirection before deteriorating.This avoids link fault events, so that client device
The user experience at place is unaffected.
In a kind of way of realization according to the control equipment of first aspect, processor is also configured to
If the quality of reception of the first beam forming link is lower than threshold value, the second beam forming link is selected；
Based on selected second beam forming link, determine that link redirects instruction.
One advantage of the way of realization is that it allows first wave of the network between client device and the first access point
Restore in the link failure of beam shaping link, to avoid long-time link down and minimizes at client device to user experience
Negative effect.
In a kind of way of realization according to the control equipment of first aspect, processor is also configured to
If receiving link redirection request from client device, the second beam forming link is selected；
Based on selected second beam forming link, determine that link redirects instruction.
The advantages of way of realization, is that, even if the non-trigger link redirection process at control equipment, it also allows to send out
Play link failure recovery.When control monitoring of tools to the link (i.e. uplink portion) from client device to the first access point
Channel quality it is good when, which is useful, but link (the i.e. downlink from the first access point to client device
Link portions) channel quality have begun deterioration.Client device as receiver is observed that the downlink is believed
Road deteriorates, but may be unaware that the downlink channel is disliked from the control equipment of access point receiving uplink channel quality
Change.In this case, client device can be to network transmission link redirection request to carry out link redirection.
In a kind of way of realization according to the control equipment of first aspect, transceiver is also configured to
Instruction of the client device to the omni-direction transmissions or directional transmissions of reference signal is received from the second access point.
The advantages of way of realization, is that wave can be sent and received according to the determining client device of instruction by controlling equipment
Whether beam shaping parameter is embedded in the reference signal by client device transmission, and determination is wherein needed by it in turn
The transmission and reception beam forming parameter of itself export client device.In the case where indicating the directional transmissions of reference signal,
Control equipment does not need the transmission of export client device and receives beam forming parameter, because it can connect from the second access point
It receives the transmission of client device and receives beam forming parameter.
In a kind of way of realization according to the control equipment of first aspect, transceiver is also configured to
If indicating client device to the directional transmissions of reference signal, client device is received from the second access point
Transmission beam index.
The advantages of way of realization, is that the transmission of client device can directly be obtained from the second access point by controlling equipment
With reception beam forming parameter.
In a kind of way of realization according to the control equipment of first aspect, processor is also configured to
Determine link redirection information, which includes that link redirects the instruction of instruction and for second
The one or more transmission and reception beam forming parameter of wireless transmission in beam forming link；
Transceiver is additionally configured to:
Link redirection information is transmitted to client device.
One advantage of the way of realization is that control equipment can redirect decision to client device notifying link, and permit
Perhaps client device obtains the necessary transmission of client device and reception beam forming parameter, to do standard for link redirection
It is standby, it means that the faster more steady variation of service link.
In a kind of way of realization according to the control equipment of first aspect, one or more of transmission and reception wave beam
Forming parameter includes the transmission beam index of client device, and the first view of the first access point relevant to client device
At least one of deviation angle between line direction and the second direction of visual lines of the second access point relevant to client.
One advantage of the way of realization is that it allows neatly to obtain the transmission of client device from control equipment and connect
Beam forming parameter is received, the omni-direction transmissions and directional transmissions of the reference signal from client device are adapted to.
In a kind of way of realization according to the control equipment of first aspect, transceiver is also configured to
Link is redirected into instruction in first message and is transmitted to the first access point；
Link is redirected into instruction in second message and is transmitted to one of second access point.
First message is addressed for the first access point to stop the nothing with the client device in the first beam forming link
Line transmission, while second message is addressed for the second access point to start and the client device in the second beam forming link
Wireless transmission.
The advantages of way of realization, is that controlling equipment can promptly access to the first access point and selected second
Point notifying link, which redirects, to be determined, the first access point and selected second access point is allowed to prepare to stop respectively and start
With the wireless transmission of client device.
According to the second aspect of the invention, above-mentioned and more mesh is realized using the second access point for wireless communication system
, the second access point includes processor and transceiver,
Wherein transceiver is configured as:
Receive the reference signal from client device, the received reference signal of institute and the second access point and client device
Between the second beam forming link it is related, wherein the second beam forming link is the non-service link of client device；
Wherein processor is configured as:
Based on received reference signal determine the second channel quality report of the second beam forming link；
Wherein transceiver is configured as:
Second channel quality report is transmitted to control equipment；
It receives the link from control equipment and redirects instruction, it includes for setting client that wherein link, which redirects instruction,
Standby service link is redirected to the instruction of the second beam forming link from the first beam forming link；
Wherein processor is configured as:
It redirects and instructs in response to link, preparation is wirelessly passed in the second beam forming link with client device
It is defeated.
The many advantages better than traditional solution are provided according to the second access point of second aspect.Second access point
The advantages of be that the second access point can monitor the channel matter of its own second beam forming link between client device
Amount, and to control equipment report channel quality, so that trigger link redirects the latter if necessary.When trigger link redirects
When, the second access point can be ready to pass through selected second beam forming link to start the wireless biography with client device
It is defeated.
In a kind of way of realization according to the second access point of second aspect, reference signal includes the net of client device
Network mark, and processor is also configured to
Client device is identified based on reference signal.
The advantages of way of realization, is, when receiving reference signal, the second access point can identify that reference signal is
Which transmitted from client device.
In a kind of way of realization according to the second access point of second aspect, reference signal includes the omnidirectional of reference signal
Transmission or the instruction of directional transmissions, and transceiver is additionally configured to
The instruction of the omni-direction transmissions of reference signal or directional transmissions is transmitted to control equipment.
The advantages of way of realization, is, when receiving reference signal, the second access point can identify client device
Transmission and receive whether beam forming parameter is embedded in reference signal, and forward that information to control equipment.
In a kind of way of realization according to the second access point of second aspect, if indicating reference in reference signal
The directional transmissions of signal, then reference signal includes the transmission beam index of client device, and transceiver is also configured to
The transmission beam index of client device is transmitted to control equipment.
The advantages of way of realization, is that the second access point can be based on from the received reference signal of client device, directly
It obtains the transmission of client device and receives beam forming parameter, and these parameters are transmitted to control equipment.
According to the third aspect of the invention we, above-mentioned and more mesh is realized using the client device for wireless communication system
, which includes processor and transceiver,
Wherein transceiver is configured as:
It is carried out wirelessly in the first beam forming link between the first access point and client device with the first access point
Transmission, wherein the first beam forming link is the service link of client device；
By reference signal transmission to the second access point, between reference signal and the second access point and client device second
Beam forming link is related, wherein the second beam forming link is the non-service link of client device；
The link redirection information from control equipment is received, wherein link redirection information includes that link redirects instruction
Instruction and for the wireless transmission in the second beam forming link transmission and receive beam forming parameter, the link weight
Directional instructions include for the service link of client device to be redirected to the second beam forming from the first beam forming link
The instruction of link；
Wherein processor is configured as:
Based on link redirection information, preparation is wirelessly transferred in the second beam forming link with the second access point.
The many advantages better than traditional solution are provided according to the client device of first aspect.This client device
The advantages of be, the transmission of the reference signal from client device is so that the second access point associated with the client device
The channel quality of the second beam forming link between client device and each second access point can be estimated, so that control is set
For when receiving these channel quality reportings, trigger link can redirect if necessary, and can protect client and set
It is standby to restore from link failure or from link failure.
In a kind of way of realization according to the client device of the third aspect, reference signal includes the net of client device
At least one of the instruction of the omni-direction transmissions or directional transmissions of network mark and reference signal.
The advantages of way of realization, is that it allows the second access point receiving the reference signal from client device
When identify client device mark, and determine client device transmission and receive beam forming parameter whether be embedded in reference
In signal.
In a kind of way of realization according to the client device of the third aspect, transmission and reception beam forming parameter include
At least one of the transmission beam index of client device and deviation angle, wherein deviation angle is related to client device
The first direction of visual lines of the first access point and the second direction of visual lines of the second access point relevant to client device between
Angle.
One advantage of the way of realization, which is it, provides flexible solution for control equipment, to notify client device
About the transmission and reception beam forming parameter of client device, the complete of the reference signal from the client device is adapted to
To transmission and directional transmissions.
In a kind of way of realization according to the client device of the third aspect, processor is also configured to
Determine the link failure of the first beam forming link；
Transceiver is additionally configured to:
In response to determining the link failure of the first beam forming link, link redirection request is transmitted to control equipment；
In response to the transmission of link redirection request, from control equipment receives link redirection information.
The advantages of way of realization, is that, in the case where control equipment does not know link failure, it allows client to set
The link failure of the standby communication to control equipment notice from the first access point to client device, allows to by controlling equipment
Link is executed by network to redirect.
According to the fourth aspect of the invention, above-mentioned and more purposes, the party are realized using method for controlling devices
Method includes:
The first channel quality reporting of the first beam forming link between the first access point and client device is received,
In the first beam forming link be client device service link；
Each of receive between each second access point and client device the second channel matter of the second beam forming link
Amount report, wherein each second beam forming link is the non-service link of client device；
Determine that link redirects instruction based on the first channel quality reporting and second channel quality report, wherein link is reset
It include for the service link of client device to be redirected to the second beam forming chain from the first beam forming link to instruction
The instruction on one of road；
Link is redirected into instruction and is transmitted to the first access point；
Link is redirected into instruction and is transmitted to one of second access point.
In a kind of way of realization according to the method for fourth aspect, this method further include:
If the quality of reception of one of the second beam forming link is higher than the quality of reception of the first beam forming link, select
Select the second beam forming link；
Based on selected second beam forming link, determine that link redirects instruction.
In a kind of way of realization according to the method for fourth aspect, this method further include:
If the quality of reception of the first beam forming link is lower than threshold value, the second beam forming link is selected；
Based on selected second beam forming link, determine that link redirects instruction.
In a kind of way of realization according to the method for fourth aspect, this method further include:
If receiving link redirection request from client device, the second beam forming link is selected；
Based on selected second beam forming link, determine that link redirects instruction.
In a kind of way of realization according to the method for fourth aspect, this method further include:
Instruction of the client device to the omni-direction transmissions or directional transmissions of reference signal is received from the second access point.
In a kind of way of realization according to the method for fourth aspect, this method further include:
If indicating client device to the directional transmissions of reference signal, client device is received from the second access point
Transmission beam index.
In a kind of way of realization according to the method for fourth aspect, this method further include:
Determine link redirection information, which includes that link redirects the instruction of instruction and for second
The one or more transmission and reception beam forming parameter of wireless transmission in beam forming link；
Link redirection information is transmitted to client device.
In a kind of way of realization according to the method for fourth aspect, one or more of transmission and reception beam forming
Parameter includes the transmission beam index of client device, and the first sight side of the first access point relevant to client device
To and at least one of deviation angle between the second direction of visual lines of relevant second access point of client device.
In a kind of way of realization according to the method for fourth aspect, this method further include:
Link is redirected into instruction in first message and is transmitted to the first access point；
Link is redirected into instruction in second message and is transmitted to one of second access point.
First message is addressed for the first access point, and second message is addressed for the second access point.
According to the advantages of the method for fourth aspect and according to phase the advantages of the corresponding control device claim of first aspect
Together.
According to the fifth aspect of the invention, above-mentioned and more purpose, the party are realized using the method for the second access point
Method includes:
Receive the reference signal from client device, the received reference signal of institute and the second access point and client device
Between the second beam forming link it is related, wherein the second beam forming link is the non-service link of client device；
Based on the received reference signal of institute, the second channel quality report of the second beam forming link is determined；
Second channel quality report is transmitted to control equipment；
It receives the link from control equipment and redirects instruction, it includes that will be used to client set that wherein link, which redirects instruction,
Standby service link is redirected to the instruction of the second beam forming link from the first beam forming link；
It redirects and instructs in response to link, preparation is wirelessly passed with the client device in the second beam forming link
It is defeated.
In a kind of way of realization according to the method for the 5th aspect, reference signal includes the network mark of client device
Know, and this method further include:
Client device is identified based on reference signal.
According to the 5th aspect method a kind of way of realization in, reference signal include reference signal omni-direction transmissions or
The instruction of directional transmissions, and this method further include:
The instruction of the omni-direction transmissions of reference signal or directional transmissions is transmitted to control equipment.
In a kind of way of realization according to the method for the 5th aspect, if indicating reference signal in reference signal
Directional transmissions, then reference signal includes the transmission beam index of client device, and this method further include:
The transmission beam index of client device is transmitted to control equipment.
The advantages of according to the advantages of the method for the 5th aspect with the second access point claim corresponding according to second aspect
It is identical.
According to the sixth aspect of the invention, above-mentioned and more mesh are realized using a kind of method for client device
, this method comprises:
It is executed wirelessly in the first beam forming link between the first access point and client device with the first access point
Transmission, wherein the first beam forming link is the service link of client device；
By reference signal transmission to the second access point, between reference signal and the second access point and client device second
Beam forming link is related, wherein the second beam forming link is the non-service link of client device；
The link redirection information from control equipment is received, wherein link redirection information includes that link redirects instruction
Instruction and for the wireless transmission in the second beam forming link transmission and receive beam forming parameter, the link
Redirect instruction include for by the service link of client device from the first beam forming link be redirected to the second wave beam at
The instruction of shape link；
Based on link redirection information, preparation is wirelessly transferred in the second beam forming link with the second access point.
In a kind of way of realization according to the method for the 6th aspect, reference signal includes the network mark of client device
At least one of the instruction of the omni-direction transmissions or directional transmissions of knowledge and reference signal.
In a kind of way of realization according to the method for the 6th aspect, transmission and reception beam forming parameter include client
The transmission beam of equipment indexes, and the first access point relevant to client device the first direction of visual lines and with client phase
At least one of deviation angle between second direction of visual lines of the second access point closed.
In a kind of way of realization according to the method for the 6th aspect, this method further include:
Determine the link failure of the first beam forming link；
In response to determining the link failure of the first beam forming link, link redirection request is transmitted to control equipment；
In response to the transmission of link redirection request, from control equipment receives link redirection information.
The advantages of according to the advantages of the method for the 6th aspect with according to the respective client end equipment claim of the third aspect
It is identical.
The invention further relates to a kind of computer programs, it is characterised in that code device makes institute when being run by processing unit
It states processing unit and executes any method according to the present invention.Moreover, it relates to a kind of computer program product, including meter
Calculation machine readable medium and the computer program, wherein the computer program includes in computer-readable medium, and wrapping
It includes with one or more of the following group: read-only memory (read-only memory, ROM), programming ROM
(Programmable ROM, PROM), erasable PROM (Erasable PROM, EPROM), flash memory, electronics EPROM
(Electrically EPROM, EEPROM) and hard disk drive.
It will be evident according to other application and advantage described in detail below, of the invention.
Detailed description of the invention
Attached drawing is intended to illustrate and illustrate different embodiments of the invention, in which:
Fig. 1 shows control equipment according to an embodiment of the present invention；
Fig. 2 shows the methods of control equipment according to an embodiment of the present invention；
Fig. 3 shows the second access point according to an embodiment of the present invention；
Fig. 4 shows the method for the second access point according to an embodiment of the present invention；
Fig. 5 shows client device according to an embodiment of the present invention；
Fig. 6 shows the method for client device according to an embodiment of the present invention；
Fig. 7 shows wireless communication system according to an embodiment of the present invention；
Fig. 8 shows the flow chart that link according to an embodiment of the present invention redirects；
Fig. 9 shows wireless communication system according to an embodiment of the present invention；With
Figure 10 shows deviation angle according to an embodiment of the present invention and calculates.
Specific embodiment
Fig. 1 shows the control device 100 of embodiment according to the present invention.In the embodiment shown in fig. 1, equipment is controlled
100 include processor 102, transceiver 104 and memory 106.Processor 102 passes through 108 coupling of communication device known in the art
Close transceiver 104 and memory 106.In one embodiment, processor 102, which can be, is configured to only perform according to this hair
The application specific processor of bright method.In some embodiments, processor 102 alternatively can be shared and be held with other network equipments
Row additional treatments.
Control equipment 100 can be configured as the wireless and wire communication being respectively used in wireless and wired communication system.
Wireless communication ability is provided with the antenna 110 for being coupled to transceiver 104, and wired communication capabilities are provided with and are coupled to transceiver
104 wired communication interface 112.
Control equipment 100 can be autonomous device or can be a part of another network equipment.For example, control equipment
100 can be the integration section of central network node, for example, access point controller or radio network controller.Control device
100 are configured as executing the certain movements that should be interpreted as that control device 100 includes suitable device in the disclosure, for example,
Processor 102 and transceiver 104 are configured for executing the movement.
Control equipment 100 be configured as receiving the first wave beam between the first access point 300a and client device 500 at
First channel quality reporting of shape link 602, as shown in Figure 7.First beam forming link 602 is the service chaining of client 500
Road.Control equipment 100 each of is additionally configured to receive between each second access point 300b and client device 500 second wave
The second channel quality report of beam shaping link 604, as shown in Figure 7.Each second beam forming link 604 is client device
500 non-service link.Control equipment 100 is additionally configured to based on the first channel quality reporting and second channel quality report,
Determine that link redirects instruction LRI (as shown in Figure 7).It includes by user client device 500 that the link, which redirects instruction LRI,
Service link is redirected to the instruction of one of second beam forming link 604 from the first beam forming link 602.Control equipment
100 are additionally configured to link redirection instruction LRI being transmitted to the first access point 300a, and link is redirected instruction LRI and is passed
Transport to one of second access point 300b.
Controlling equipment 100 can redirect link and instruct in the first message for the first access point 300a addressing
LRI is transmitted to the first access point 300a, and in the second message for one of second access point 300b addressing, by link weight
Directional instructions LRI is transmitted to one in the second access point 300b.First message and second message, which can be, for example passes through backhaul
Link or any other suitable infrastructure are transmitted separately to the first access point 300a and the second access point 300b.First message
The second access is redirected to from the first access point 300a including the first access point 300a service link for participating in client device 500
Information needed for point 300b, and second message includes information needed for the second access point 300b participates in the redirection.Therefore,
Information in one message and second message can it is identical, part is identical or different from each other.
Control equipment 100 can also via from the first access point 300a to client device 500 another it is accessible and
Reliable link sends to impacted client device 500 and redirects related information.For example, in LTE or new radio
In (new radio, NR), DL channel is lower than 6GHz, such as physical downlink control channel (physical downlink
Control channel, PDCCH) it may be used as this reliable link from the first access point 300a to client device 500.
This information is denoted herein as link redirection information LRInfo, and will be more specifically described in following discloses.
In some embodiments, control equipment 100, which may insure correctly to realize, is designated as the new of client device 500
The first access point 300a the second access point 300b in resource allocation.Due to for the data from/to client device 500
The resource allocation that the physics UL and DL of transmission share channel is controlled by corresponding control channel, so control equipment 100 enough may be used
To ensure that the client device 500 redirected is incorporated into the scheduler of the second access point 300b.
Fig. 2 shows the flow charts that the correlation method 700 executed in equipment 100 can be controlled shown in such as Fig. 1.
Method 700 includes receive the first beam forming link 602 between 702 first access point 300a and client device 500 the
One channel quality reporting.First beam forming link 602 is the service link of client device 500.Method 700 further includes receiving
The second channel matter of second beam forming link 604 each of between 704 each second access point 300b and client device 500
Amount report.Each second beam forming link 604 is the non-service link of client device 500.Method 700 further includes based on the
One channel quality reporting and second channel quality report determine that 706 links redirect instruction LRI.Link redirects instruction LRI packet
It includes for the service link of client device 500 to be redirected to the second beam forming link from the first beam forming link 602
One of 604 instruction.In addition, method 700 includes that link is redirected to instruction LRI to transmit 708 to the first access point 300a and incite somebody to action
Link redirects instruction LRI and transmits one of 710 to the second access point 300b.In fig. 2 it is shown that the method in method 700 walks
Suddenly it executes one by one, i.e., it is serial to execute.However, method and step can be executed with another sequence, for example, without departing from
In the case where universal of the invention, shifts one's position or execute parallel.
Fig. 3 shows the second access point 300b according to an embodiment of the present invention.In the embodiment shown in fig. 3, it second connects
Access point 300b includes processor 302, transceiver 304 and memory 306.Processor 302 passes through communication device known in the art
308 are coupled to transceiver 304 and memory 306.Second access point 300b, which can be configured as, is respectively used to wireless and cable modem
Wireless and wire communication in letter system.Wireless communication ability is provided with the antenna 310 for being coupled to transceiver 304, and cable modem
Letter ability is provided with the wired communication interface 312 for being coupled to transceiver 304.
Second access point 300b is configured as executing be understood to mean that the second access point 300b in the disclosure
Certain movements including suitable device, for example, processor 302 and transceiver 304 are configurable for executing the movement.
It should be noted that the problem of symbol " second " in statement " the second access point " is only label, so that simplification for example exists
The description of intercommunication between " the first access point " and " the second access point " shown in Fig. 7.Therefore, so-called second access point
300b can serve as the first access point 300a in other cases.
Second access point 300b is configured as receiving the reference signal RS (as shown in Figure 7) from client device 500.Institute
The second beam forming link 604 between received reference signal RS and the second access point 300b and client device 500 is related,
Wherein the second beam forming link 604 is the non-service link of client device 500.Second access point 300b is additionally configured to base
The second channel quality report of the second beam forming link 604 is determined in the reference signal RSs received, and by second channel matter
Amount report is transmitted to control equipment 100.In addition, the second access point 300b is configured as receiving the link from control equipment 100
Redirect instruction LRI.Link redirect instruction LRI include for by the service link of client device 500 from the first wave beam at
Shape link 602 is redirected to the instruction of the second beam forming link 604.Second access point 300b is additionally configured to preparation/configuration
It is wirelessly transferred in the second beam forming link 604 with client device 500 to respond link and redirect instruction LRI.
Fig. 4 shows the correlation method 800 that can be executed in a second access point 300b for example shown in fig. 3
Flow chart.Method 800 includes receiving the 802 reference signal RS from client device 500.Received reference signal RS and
The second beam forming link 604 between two access point 300b and client device 500 is related.Second beam forming link 604
It is the non-service link of client device 500.Method 800 further includes being determined based on the received reference signal RS of institute 804 for the
The second channel quality report of two beam forming links 604, and second channel quality report is transmitted 806 to control equipment
100.In addition, method 800 includes receiving 808 links from control equipment 100 to redirect instruction LRI.Link redirects instruction
LRI includes for the service link of client device 500 to be redirected to the second beam forming from the first beam forming link 602
The instruction of link 604.Method 800 further includes that instruction LRI is redirected in response to link, prepares 810 in the second beam forming link
It is wirelessly transferred in 604 with client device 500.
Fig. 5 shows client device 500 according to an embodiment of the present invention.Client device 500 include processor 502,
Transceiver 504 and memory 506.Processor 502 is coupled to transceiver 504 by communication device 508 known in the art and deposits
Reservoir 506.Client device 500 further includes the antenna 510 for being coupled to transceiver 504, it means that client device 500 is matched
It sets for the wireless communication in wireless communication system.
Client device 500 is configured as executing certain should be understood to mean that client device 500 in the disclosure
Certain movements including suitable device, for example, processor 502 and transceiver 504 are configurable for executing the movement.
Client device 500 be configured as the first wave beam between the first access point 300a and client device 500 at
Wireless transmission is executed with the first access point 300a on shape link 602.First beam forming link 602 is client device 500
Service link.Client device 500 is additionally configured to for reference signal RS to be transmitted to the second access point 300b.Reference signal RS with
The second beam forming link 604 between second access point 300b and client device 500 is related.Second beam forming link
604 be the non-service link of client device 500.Client device 500 is additionally configured to receive the chain from control equipment 100
Road redirection information LRInfo.Link redirection information LRInfo includes that link redirects the instruction of instruction LRI and for second
The transmission of wireless transmission in beam forming link and beam forming parameter is received, it includes for will be objective which, which redirects instruction,
The service link of family end equipment 500 is redirected to the instruction of the second beam forming link 604 from the first beam forming link 602.
In addition, client device 500 is configured as preparing based on link redirection information LRInfo in the second beam forming link 604
In be wirelessly transferred with the second access point 300b.
Fig. 6 shows the process for the corresponding method 900 that can be executed in the client device 500 shown in such as Fig. 5
Figure.Method 900 includes executing in the first beam forming link 602 between the first access point 300a and client device 500
902 wireless transmissions.First beam forming link 602 is the service link of client device 500.Method 900 further includes that will refer to
Signal RSs transmits 904 to the second access point 300b, and the between reference signal RSs and the second access point 300b and client 500
Two beam forming links 604 are associated.Second beam forming link 604 is the non-service link of client device 500.Method
900 further include receiving the 906 link redirection information LRInfo from control equipment 100.Link redirection information LRInfo packet
Include link redirect instruction LRI instruction and for the wireless transmission in the second beam forming link transmission and receive wave beam at
Shape parameter, the link redirect instruction include for by the service link of client device 500 from the first beam forming link 602
It is redirected to the instruction of the second beam forming link 604.In addition, method 900 includes based on link redirection information LRInfo, standard
Standby 908 are wirelessly transferred in the second beam forming link 604 with the second access point 300b.
Fig. 7 shows client device 500, the first access point 300a and the second access point in wireless communication system 600
Intercommunication between 300b.For the sake of simplicity, wireless communication system 600 shown in fig. 7 only include a client device 500,
An one first network point 300a and second access point 300b.However, without departing from the present invention, channel radio
Letter system 600 may include any number of client device 500 and any number of access point 300a, 300b.
In wireless communication system 600, client device 500 has the first beam forming chain to the first access point 300a
Road 602 connects, i.e. service link, and connects to the second beam forming link 604 of the second access point 300b, i.e. non-serving chain
Road.Control equipment 100 connects for example, being connected to the first access point 300a and second by backhaul link or any other infrastructure
Access point 300b.In addition, control equipment 100 can directly or via in communication network 600 the first access point 300a, second
Access point 300b or another access point or network node are communicated with client device 500.
Channel quality based on the first beam forming link 602 and the second beam forming link 604, control equipment 100 can
To be redirected it is determined that executing link, that is, should be by the service link of client 500 from 602 weight of the first beam forming link
It is directed to the second beam forming link 604.Referring now to the communication between node involved in Fig. 8 description redirection.
Fig. 8 shows the flow chart that link according to an embodiment of the present invention redirects.In first step I, the first access
Point 300a monitors the channel quality of the first beam forming link 602 of client device 500, and in the first channel quality reporting
The channel quality reporting of monitoring is given to control equipment 100 in CQR1.In an identical manner, the second access point 300b monitors client
The channel quality of second beam forming link 604 of end equipment 500, and give the channel quality reporting of monitoring in the 2nd CQR2
Control equipment 100.Then, if the channel quality of the first beam forming link 602 deteriorates, this indicates the first beam forming link
602 will be blocked, then link redirection should be executed as shown in step II.In step III, control equipment 100 is by by chain
Road redirects instruction LRI and is transmitted to the first access point 300a and the second access point 300b to determine and initiate link and redirect.Base
The information in instruction LRI is redirected in link, the first access point 300a and the second access point 300b execute necessary operation respectively,
The service link of client device 500 is redirected to the second beam forming link 604 from the first beam forming link 602.
Step IV, which is shown, executes the scene after link redirects.Client device 500 has the to the second access point 300b now
One beam forming link 602 and the second beam forming link 604 to the first access point 300a.Therefore, the second access point 300b
As the Service Access Point of client device 500, and the first access point 300a has become the non-serving access of client device 500
Point.First access point 300a and the second access point 300b continues to monitor its respectively channel quality of link and the channel matter by monitoring
Control equipment 100 is given in amount report.
Fig. 9 shows wireless communication system 600 according to the embodiment.In Fig. 9, wireless communication system 600 includes one
Control equipment 100, multiple client equipment 500, multiple first access point 300a and multiple second access point 300b.In the implementation
In example, control equipment 100 is configured as in wireless communication system 600 being that each client device 500 determines one group second and connects
Access point 300b.In one example, the group the second access point 300b is determined based on the geographical location of each client.Once objective
Family end equipment 500 is connected to the first access point 300a, and geographical location just becomes known to controlled device 100.Therefore, control is set
The geographical location of standby accessible each client device 500, and the information can be used to determine for each client
The suitable second access point 300b of one group of end equipment 500.When client device 500 moves in wireless communication system 600,
Control equipment 100 will redistribute second access point of group 300b for client device 500.Which ensure that client device 500
Even if when moving also close to each the second access point 300b (kept with each second access point 300b it is very short away from
From).First access point 300a of one client device 500 can be the second access point 300b of another client device 500
(being not shown in Fig. 9).Here one group of second access point can indicate one or more second access points.
If the first beam forming link 602 of client device 500 deteriorates or damage, controlling equipment 100 can be from
The second access point 300b of adapter tube is most suitable for for one group of second access point 300b selection of client device 500.Control equipment
100 based on respectively from the first access point 300a and received first quality report of the second access point 300b and the second quality report come
Execute selection.First quality report includes the reception about the first beam forming link 602 estimated by the first access point 300a
The information of quality.In an identical manner, each second quality report includes the second wave estimated by one of second access point 300b
The quality of reception of one of beam shaping link 604.Each second access point 300b can be transmitted in UL based on client device 500
The directional reception of reference signal RS estimate the quality of the second beam forming link 604 of given client end equipment 500.Ginseng
All second access point 300b associated there can be transferred to by client device 500 by examining signal RS.Client device 500
The first access point 300a need not search for its own client device 500 reference signal RS because it is anyway all
Search for each client device 500 of its own demodulated reference signal (demodulation reference signal,
DMRS), reception quality information (for example, received signal power) identical with any reference signal RS can be provided.Not to
One access point 300a transmission of reference signals RS reduces the power consumption of client device 500 and the first access point 300a and frequency spectrum is gathered around
Plug.
In further embodiment of the present invention, if based on obtaining from the first quality report and the second quality report
First beam forming link 602 of quality information, client terminal device 500 deteriorates or damage, and control device 100 is in one group of second wave
Most suitable second beam forming link 604 is selected to take in beam shaping link.Most suitable second beam forming link
604 can be for example, being selected according to following one or more standards:
If a) quality of reception of one of second beam forming link 604 is higher than the reception of the first beam forming link 602
Quality then selects the second beam forming link 604.
If b) quality of reception of the first beam forming link 602 is lower than threshold value, the second beam forming link is selected
604。
If c) receiving explicit link redirection request LRR (as shown in Figure 7) from client device 500, is selected
Two beam forming links 604.
Once control equipment 100 has selected suitable second beam forming link 604, control equipment 100 can be based on
Selected second beam forming link 604 determines that link redirects instruction LRI.
In some embodiments, UL and DL is redirected to selected second access point 300b together, even if in them
Only one be blocked.Benefit with this method is that UL and DL is connected to the efficiency of identical first access point 300a more
It is high.
As described above, in some embodiments, control equipment 100 can be based on from the received link of client device 500
Redirection request LRR, i.e., standard c) Lai Faqi link above redirect.Fig. 7 shows the signaling in this embodiment.Scheming
In 7, client device 500 determines the link failure of the first beam forming link 602.In response to determining the first beam forming link
Link redirection request LRR is transmitted to control equipment 100 by 602 link failure, client device 500.When control equipment 100
When receiving link redirection request LRR from client device 500, the control selection of equipment 100 is suitable for adapter tube and sets with client
Standby 500 the second beam forming links 604 being wirelessly transferred.It controls equipment 100 and is based on selected second beam forming chain
Road 604 determines link redirection information LRInfo, and link redirection information LRInfo is transmitted to client device 500.Visitor
Family end equipment from control 100 receives link redirection information LRInfo of equipment.Therefore, in this embodiment, in response to link weight
Orientation request LRR transmission, client device 500 from control 100 receives link redirection information LRInfo of equipment.
Link redirection information LRInfo includes the instruction that link redirects instruction LRI, and is used for the second beam forming chain
The one or more transmission and reception beam forming parameter of wireless transmission in road 604.Client device 500 can be used one
Or multiple transmission and reception beam forming parameter are to obtain the transmission of the second beam forming link 604 and receive beam forming system
Number, and may include the transmission beam index of client device 500, and first access relevant to client device 500
The of the first sight direction (line-of-sight, LoS) of point and second access point 300b relevant to client device 500
At least one of deviation angle between two direction of visual lines.
If the transmission beam index of client device 500 is included in link redirection information LRInfo, client
Equipment 500 uses the information to acquisition/generation transmission and receives beam forming coefficients.It can directly be obtained from transmission beam index
Transmission beam.However, transmission and reception wave beam be not usually identical (it is usually wider receiving wave beam, therefore less).Therefore, client
Transmission beam index translation must be immediate reception beam index by equipment 500, to obtain reception wave beam.
If deviation angle is included in link redirection information LRInfo, client device 500 is used the information to
Acquisition/generation transmission and reception beam forming coefficients.Client device 500 it is generally known it use which transmission beam index
It is transmitted to the first access point 300a, and it knows transmission beam width.Therefore, by by deviation angle divided by transmission wave beamwidth
Degree, client device 500 can obtain offset transmission beam index.Offset transmission beam index is added to for connecing to first
The transmission beam index of access point 300a transmission, to obtain the transmission beam that be used for transmitting to selected second access point 300b
Index.
Figure 10 shows deviation angle according to an embodiment of the present invention and calculates.(- 180 °≤α of offset angle as can be drawn from Figure 10
≤ 180 °) it can be calculated as
Wherein
Wherein, (x500, y500), (x300a, y300a) and (x300b, y300b) it is client device 500, the first access point respectively
The geographical location of 300a and the second access point 300b.Based on selected second access point 300b whether from client device
The left-hand side or right-hand side of the sight LoS of 500 to the first access point 300a calculates the symbol of α.
In an embodiment of the present invention, the reference signal RS transmitted by client device 500 may include in following extremely
It is one few: omni-direction transmissions or orientation of the network identity and client device 500 of client device 500 to reference signal RS
The instruction of transmission.When reference signal RS includes the information of the network identity of the client device 500 about transmission of reference signals RS
When, the second access point 300b identifies the client device assigned by them using the network identity of client device 500
Reference signal RS received by 500.When first time establishing the first beam forming link 602 for arriving client device 500, control
The network identity of client device 500 can be distributed to client device 500 by control equipment 100.When the second access point 300b quilt
When selection, equipment 100 is controlled by the network identity of the client device 500 distributed and is supplied to the second access point 300b.Therefore,
When reference signal RS includes the network identity of client device 500, the second access point 300b can be known based on reference signal RS
Other client device 500.
As described above, reference signal RS can directionally or omni-directionally be transmitted by client device 500.It is referred in orientation
In the case that signal RS is transmitted, reference signal RS transmission beam index is embedded in reference signal RS.In omnidirectional's reference signal
In the case that RS is transmitted, the mark of instruction omnidirectional's reference signal RS transmission is embedded in reference signal RS.In order to make second to connect
Access point 300b knows transmission beam index whether is explicitly or implicitly carried in reference signal RS, and the omnidirectional of reference signal RS passes
Defeated and directional transmissions instructions are included in reference signal RS by client device 500.If the second access point 300b is from client
End equipment 500 receives the instruction of the omni-direction transmissions of reference signal RS, then the second access point 300b knows that reference signal RS is complete
To transmission.Therefore, transmission beam index information is not present in reference signal RSs.Then, the second access point 300b can should
Instruction is forwarded to control equipment 100.On the other hand, if the second access point 300b is received from client device 500 with reference to letter
The instruction of the directional transmissions of number RS, then the second access point 300b knows that reference signal RS is directed transmission, and also carries transmission
Beam index information (explicitly or implicitly, but scheduled).Then, the second access point 300b is attempted from received with reference to letter
Number RS exports transmission beam index information, and instruction and derived transmission beam index are all forwarded to control equipment 500.Cause
This, the second access point 300b can be configured as, when reference signal RS includes the omni-direction transmissions or directional transmissions of reference signal RS
Instruction when, by the instruction of the omni-direction transmissions of reference signal RS or directional transmissions be transmitted to control equipment 100.In addition, second connects
Access point 300b can be configured as, when reference signal RS includes the transmission beam index of client device 500, if referring to
The directional transmissions of reference signal RS are indicated in signal RS, then the transmission beam index of client device 500 are transmitted to control
Device 100.
Therefore, control equipment 100 can receive client device 500 to the complete of reference signal RS from the second access point 300b
To transmission or the instruction of directional transmissions.In addition, if indicating client device 500 to the directional transmissions of reference signal RS,
The transmission beam index of client device 500 can be received from the second access point 300b by controlling equipment.
No matter reference signal RS is omnidirectional or directional transmissions, always assumes that control equipment 100 has client device
500, the geographical location of the first access point 300a and the second access point 300b, so that control equipment 100 always can be counted correspondingly
Calculate deviation angle.Once link is needed to redirect, control equipment 100 can decide whether in link redirection information LRInfo
In include deviation angle or transmission beam index (if available) or both.
In the case where the directional transmissions of reference signal RS, transmission beam index is embedded in reference signal RS and in quilt
Control equipment 100 is forwarded to after corresponding second access point 300b detection.It controls equipment 100 and transmission beam is indexed into transmission
To client device 500, the second access point 300b by being selected as new demand servicing access point is received.In client device 500
Without the position about the second access point, or should be transmitted using which beam forming coefficients to the second access point 300b
In the case where any information, reference signal RS can be at least two between client device 100 and the first access point 300a
LoS orthogonal direction on directionally transmitted.In this way, if client device 500 and the first access point 300a it
Between LoS be blocked fully, then be likely to by the second access point 300b receive reference signal RS, wherein second access point
300b has the side of +/- 90 degree of azimuthal displacements relative to the LoS between client device 500 and the first access point 300a
To.Alternatively, after the connection established between client device 500 and Service Access Point 300a, control equipment 100 can be via
The beam forming coefficients for being used for transmission reference signal RS are sent client device 500 by first access point 300a.
Directional reception at each second access point 300b is preferably executed by phased array, wherein adaptive weighted coefficient
It is applied to each antenna element place received signal of phased array, wherein each antenna, which is connected to, individually receives radio frequency
(radio frequency, RF) chain.All outputs for receiving RF chain are combined to obtain composite received signal.This processing is known as
Digital beam-forming.By changing weight, receiver can scan any direction of received reference signal RS, and with this
Mode determines the accurate orientation of reference signal RS and the angle of arrival (angle of arrival, AoA) of height above sea level.With this side
Formula, the second access point 300b only reliably can track mobile client device 500 from the single vector for receiving sample of signal
Reception signal any direction.For receiving the reception beam scanning that beam forming is realized by simulation or mixing, this is not
It is possible.If control equipment 100 select the second access point 300b as with client device 500 often deteriorate or damage link
Best substitution, then the estimation AoA at the second access point 300b is also used for from identical second access point to client device 500
Possible mmWave transmission.The AoA of estimation is used to leave angle as the transmission signal from identical second access point 300b
(angle of departure, AoD) is not meant to the reciprocity of the UL and DL channel of given client end equipment 500.This is mutually
Easy property mean channel be it is identical, do not need to work with proposed embodiment.Condition needed for the embodiment is In
There are accessible LoS between client device 500 and certain second access point 300b.If there is without hindrance LoS, then really
At least there is LoS channel component in guarantor, on UL and DL although these LoS components may not have identical gain coefficient, example
Such as, if they are sent with different carrier frequencies.It, can since the LoS component of mmWave link is occupied an leading position always
Ensure the quality of UL and DL mmWave signal.
Here control equipment 100 be also denoted as radio network controller or network controller or any other etc.
Imitate net control device.
Here the second access point 300b might also depend on used technology and term and be expressed as radio net
Node, access point, transmits and receives point (transmit-receive point, TRP) or base station at access network nodes, for example, nothing
Line electricity base station (radio base station, RBS), " eNB ", " eNodeB ", " NodeB ", " B node ", gNodeB or gNB.
Radio network node is based on transimission power, to can be different class also based on cell size, for example, macro eNodeB, family
Front yard eNodeB or femto base station.Radio network node can be station (station, STA), be comprising meeting IEEE802.11
The media access control (media access control, MAC) and object to wireless medium (wireless medium, WM)
Manage any equipment of layer (physical layer, PHY) interface.Radio network node is also possible to and the 5th generation (fifth
Generation, 5G) the corresponding base station of wireless system.
Here client device 500 can be represented as user equipment, user equipment (user equipment, UE),
Movement station, Internet of Things (internet of thing, IoT) equipment, sensor device, wireless terminal and/or mobile terminal, energy
It is enough wirelessly communicated in a wireless communication system, otherwise referred to as cellular radio system.UE is also referred to as having wireless
Mobile phone, cellular phone, computer tablet computer or the laptop computer of ability.UE in this context can be can be through
By radio access network and another entity, such as another receiver or server voice and/or data communication are for example
Portable, pocket storage, hand-held, comprising computer or vehicle mobile equipment.UE can be station (STA), be comprising symbol
Close IEEE 802.11 to the media access control (MAC) of wireless medium (WM) and any equipment of physical layer (PHY) interface.
UE may be further configured in 3GPP relevant LTE and LTE-Advanced, in WiMAX and its evolution and such as new
Communication in 5th generation wireless technology of radio.
In addition, any method according to an embodiment of the present invention can be realized in the computer program with code device,
The step of code device makes processing unit execute this method when being run by processing unit.The computer program is included in calculating
In the computer-readable medium of machine program product.Computer-readable medium may include substantially any memory, such as ROM
(read-only memory), PROM (programmable read only memory), EPROM (erasable PROM), flash memory, EEPROM (electric erasable
) or hard disk drive PROM.
In addition, technical staff recognizes, equipment 100, the embodiment of the second access point 300b and client device 500 are controlled
It include the necessary communication capacity of the form such as function, device, unit, element, for executing this solution.Other are such
Device, unit, element and function example be: processor, memory, buffer, control logic, encoder, decoder, rate
Adaptation, reduction of speed adaptation, map unit, multiplier, decision package, selecting unit, switch, interleaver, deinterleaver, modulation
Device, demodulator, input, output, antenna, amplifier, acceptor unit, transmitter unit, DSP, MSD, TCM encoder, TCM solution
Code device, power supply unit, feeder equipment, communication interface, communication protocol etc. are together for executing this solution.
Particularly, the processor for controlling equipment 100, the second access point 300b and client device 500 may include for example
Central processing unit (central processing unit, CPU), processing unit, processing circuit, processor, dedicated integrated electricity
Road (application specific integrated circuit, ASIC), microprocessor can be explained and be executed instruction
Other processing logics one or more examples.Therefore, statement " processor " can indicate include multiple processing circuits place
Circuit is managed, for example, above-mentioned any, some or all processing circuits.The processing circuit can also be performed for inputting, exporting and locate
Manage the data processing function of data, including data buffering and equipment control function, such as call treatment control, user interface control
Deng.
Finally, it is to be understood that the present invention is not limited to the above embodiments, but it is related to and includes accompanying independent claim model
Enclose interior all embodiments.
Claims (20)
1. one kind is used for the control equipment (100) of wireless communication system (600), the control equipment (100) includes processor
(102) and transceiver (104),
Wherein the transceiver (104) is configured as:
Receive the first letter of the first beam forming link (602) between the first access point (300a) and client device (500)
Road quality report, wherein the first wave beam shaping link (602) is the service link of the client device (500)；
Each of receive between each second access point (300b) and the client device (500) the second beam forming link
(604) second channel quality report, wherein each second beam forming link (604) is the client device (500)
Non-service link；
Wherein the processor (102) is configured as:
Determine that link redirects instruction (LRI) based on first channel quality reporting and the second channel quality report,
Described in link redirect instruction (LRI) include for by the service link of the client device (500) from described the
One beam forming link (602) is redirected to the instruction of one of described second beam forming link (604)；
Wherein the transceiver (104) is configured as:
The link is redirected into instruction (LRI) and is transmitted to first access point (300a)；
The link is redirected into instruction (LRI) and is transmitted to one of described second access point (300b).
2. control equipment (100) according to claim 1, wherein the processor (102) is configured as:
If the quality of reception of one of the second beam forming link (604) is higher than the first beam forming link (602)
The quality of reception, then select the second beam forming link (604)；
Based on the selected second beam forming link (604), determine that the link redirects instruction (LRI).
3. control equipment (100) according to claim 1 or 2, wherein the processor (102) is configured as:
If the quality of reception of the first beam forming link (602) is lower than threshold value, the second beam forming link is selected
(604)；
Determine that the link redirects instruction (LRI) based on the selected second beam forming link (604).
4. control equipment (100) according to any one of the preceding claims, wherein the processor (102) is configured
Are as follows:
If receiving link redirection request (LRR) from the client device (500), the second beam forming link is selected
(604)；
Determine that the link redirects instruction (LRI) based on the selected second beam forming link (604).
5. control equipment (100) according to any one of the preceding claims, wherein the transceiver (104) is configured
Are as follows:
The client device (500) is received to reference signal (RS) omni-direction transmissions or orientation from second access point (300b)
The instruction of transmission.
6. control equipment (100) according to claim 5, wherein the transceiver (104) is configured as:
If indicating the client device (500) to the directional transmissions of reference signal (RS), from second access point
(300b) receives the transmission beam index of the client device (500).
7. control equipment (100) according to any one of the preceding claims, wherein the processor (102) is configured
Are as follows:
It determines link redirection information (LRInfo), the link redirection information (LRInfo) includes that the link redirection refers to
It enables the instruction of (LRI) and transmits and connect for the one or more of the wireless transmission in the second beam forming link (604)
Receive beam forming parameter；
Wherein the transceiver (104) is configured as:
The link redirection information (LRInfo) is transmitted to the client device (500).
8. control equipment (100) according to claim 7, wherein one or more of transmission and reception beam forming
Parameter includes the transmission beam index of the client device (500), and relevant to the client device (500) described
First direction of visual lines of the first access point (300a) and second access point relevant to the client device (500)
At least one of deviation angle between second direction of visual lines of (300b).
9. one kind is used for second access point (300b) of wireless communication system (600), second access point (300b) includes place
Device (302) and transceiver (304) are managed,
Wherein the transceiver (304) is configured as:
The reference signal (RS) for coming from client device (500) is received, the received reference signal (RS) connects with described second
The second beam forming link (604) between access point (300b) and the client device (500) is related, wherein second wave
Beam shaping link (604) is the non-service link of the client device (500)；
Wherein the processor (302) is configured as:
The second channel quality report of the second beam forming link (604) is determined based on the received reference signal (RS)
It accuses；
Wherein the transceiver (304) is configured as:
The second channel quality report is transmitted to control equipment (100)；
It receives the link from control equipment (100) and redirects instruction (LRI), wherein the link redirects instruction
It (LRI) include for the service link of the client device (500) to be redirected to institute from the first beam forming link (602)
State the instruction of the second beam forming link (604)；
Wherein the processor (302) is configured as:
Instruction (LRI) is redirected in response to the link, preparation is set in the second beam forming link (604) with client
Standby (500) are wirelessly transferred.
10. the second access point (300b) according to claim 9, wherein the reference signal (RS) includes the client
The network identity of end equipment (500),
Wherein the processor (302) is configured as:
The client device (500) is identified based on the reference signal (RS).
11. the second access point (300b) according to claim 9 or 10, wherein the reference signal (RS) includes described
The instruction of the omni-direction transmissions or directional transmissions of reference signal (RS),
Wherein transceiver (304) is configured as:
The instruction of the omni-direction transmissions or directional transmissions of the reference signal (RS) is transmitted to the control equipment (100).
12. the second access point (300b) according to claim 11, wherein if the instruction in the reference signal (RS)
The directional transmissions of the reference signal (RS), then the reference signal (RS) includes the transmission of the client device (500)
Beam index,
Wherein the transceiver (304) is configured as:
The transmission beam index of the client device (500) is transmitted to the control equipment (100).
13. one kind is used for the client device (500) of wireless communication system (600), the client device (500) includes processing
Device (502) and transceiver (504),
Wherein the transceiver (504) is configured as:
With in the first beam forming link (602) between the first access point (300b) and the client device (500)
One access point (300b) executes wireless transmission, wherein the first wave beam shaping link (602) is the client device (500)
Service link；
Reference signal (RS) is transmitted to the second access point (300b), the reference signal (RS) and second access point
The second beam forming link (604) between (300b) and the client device (500) is related, wherein second wave beam at
Shape link (604) is the non-service link of the client device (500)；
The link redirection information (LRInfo) from control equipment (100) is received, wherein the link redirection information
It (LRInfo) include that link redirects the instruction of instruction (LRI) and for wireless in the second beam forming link (604)
The transmission of transmission and beam forming parameter is received, it includes for by the client device that the link, which redirects instruction (LRI),
(500) the service link is redirected to the second beam forming link from the first beam forming link (602)
(604) instruction；
Wherein the processor (502) is configured as:
Based on the link redirection information (LRInfo), prepare in the second beam forming link (604) with described the
Two access points (300b) are wirelessly transferred.
14. client device (500) according to claim 13, wherein the reference signal (RS) includes the client
In the instruction of the omni-direction transmissions or directional transmissions of the network identity and reference signal (RS) of end equipment (500) at least
One.
15. client device described in 3 or 14 (500) according to claim 1, wherein the transmission and reception beam forming ginseng
Number includes at least one of transmission beam index and the deviation angle of the client device (500), wherein the deviation angle
Degree be first access point (300a) relevant to the client device (500) the first direction of visual lines and with the client
Angle between second direction of visual lines of relevant second access point (300b) of end equipment (500).
16. client device described in any one of 3 to 15 (500) according to claim 1, wherein processor (502) quilt
It is configured that
Determine the link failure (602) of the first beam forming link；
Wherein the transceiver (504) is configured as:
In response to the link failure of determination the first beam forming link (602), link redirection request (LRR) is passed
Transport to the control equipment (100)；
In response to the transmission of the link redirection request (LRR), the link is received from the control equipment (100) and is redirected
Information (LRInfo).
17. method (700) of the one kind for the control equipment (100) in wireless communication system (600), the method (700) packet
It includes:
Receive the of the first beam forming link (602) between (702) first access points (300a) and client device (500)
One channel quality reporting, wherein the first wave beam shaping link (602) is the service link of the client device (500)；
Second beam forming each of between reception (704) each second access point (300b) and the client device (500)
The second channel quality report of link (604), wherein each second beam forming link (604) is the client device
(500) non-service link；
Determine that (706) link redirects instruction based on first channel quality reporting and the second channel quality report
(LRI), wherein it includes for by the service link of the client device (500) that the link, which redirects instruction (LRI),
The instruction of one of described second beam forming link (604) is reoriented to from the first beam forming link (602)；
The link is redirected into instruction (LRI) transmission (708) to first access point (300a)；
The link is redirected into one of instruction (LRI) transmission (710) extremely second access point (300b).
18. method (800) of the one kind for the second access point (300b) in wireless communication system (600), the method (800)
Include:
Receive reference signal (RS) that (802) come from client device (500), the received reference signal (RS) and described the
The second beam forming link (604) between two access points (300b) and the client device (500) is related, wherein described the
Two beam forming links (604) are the non-service links of the client device (500)；
The second channel matter of (804) described second beam forming link (604) is determined based on the received reference signal (RS)
Amount report；
By second channel quality report transmission (806) to control equipment (100)；
It receives (808) and redirects instruction (LRI) from the link of control equipment (100), wherein link redirection refers to
Enabling (LRI) includes for the service link of the client device (500) to be redirected to from the first beam forming link (602)
The instruction of the second beam forming link (604)；
In response to the link redirect instruction (LRI), prepare (810) in the second beam forming link (604) with institute
Client device (500) is stated to be wirelessly transferred.
19. method (900) of the one kind for the client device (500) in wireless communication system (600), the method (900)
Include:
With in the first beam forming link (602) between the first access point (300b) and the client device (500)
One access point (300b) executes (902) wireless transmission, wherein the first wave beam shaping link (602) is the client device
(500) service link；
Reference signal (RS) is transmitted into (904) to the second access point (300b), the reference signal (RS) and second access
The second beam forming link (604) between point (300b) and the client device (500) is related, wherein second wave beam
Forming link (604) is the non-service link of the client device (500)；
The link redirection information (LRInfo) of (906) from control equipment (100) is received, wherein the link redirection information
It (LRInfo) include that link redirects the instruction of instruction (LRI) and for wireless in the second beam forming link (604)
The transmission of transmission and beam forming parameter is received, it includes for by the client device that the link, which redirects instruction (LRI),
(500) the service link is redirected to the second beam forming link from the first beam forming link (602)
(604) instruction；
Based on the link redirection information (LRInfo), prepare (908) in the second beam forming link (604) with institute
The second access point (300b) is stated to be wirelessly transferred.
20. a kind of computer program product, including have for executing 7 to 19 described in any item methods according to claim 1
Program code computer program.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2017/064561 WO2018228684A1 (en) | 2017-06-14 | 2017-06-14 | Control device, client device, network node and methods thereof for serving beam selection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110463266A true CN110463266A (en) | 2019-11-15 |
Family
ID=59067664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780089012.8A Withdrawn CN110463266A (en) | 2017-06-14 | 2017-06-14 | Control equipment, client device, network node and its method for served beams selection |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110463266A (en) |
| WO (1) | WO2018228684A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114390568A (en) * | 2020-10-22 | 2022-04-22 | 联发科技（新加坡）私人有限公司 | Beam fault recovery method and user equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140117847A (en) * | 2013-03-27 | 2014-10-08 | 한국전자통신연구원 | Handover method for mobiles and communication apparatus using the method |
| CN106576272B (en) * | 2014-07-02 | 2020-09-25 | 瑞典爱立信有限公司 | Method and apparatus for obtaining accurate measurement results of a communication device |
-
2017
- 2017-06-14 WO PCT/EP2017/064561 patent/WO2018228684A1/en active Application Filing
- 2017-06-14 CN CN201780089012.8A patent/CN110463266A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114390568A (en) * | 2020-10-22 | 2022-04-22 | 联发科技（新加坡）私人有限公司 | Beam fault recovery method and user equipment |
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| Publication number | Publication date |
|---|---|
| WO2018228684A1 (en) | 2018-12-20 |
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