CN108242944A - A kind of method and apparatus in UE for multi-antenna transmission, base station - Google Patents
A kind of method and apparatus in UE for multi-antenna transmission, base station Download PDFInfo
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- CN108242944A CN108242944A CN201611219760.7A CN201611219760A CN108242944A CN 108242944 A CN108242944 A CN 108242944A CN 201611219760 A CN201611219760 A CN 201611219760A CN 108242944 A CN108242944 A CN 108242944A
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- channel quality
- antenna port
- quality value
- information
- port group
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
Abstract
The invention discloses the method and apparatus in a kind of UE for multi-antenna transmission, base station.UE receives the first signaling successively, receives the first wireless signal and sends the first information.Wherein, institute's first signaling is used for determining at least one of { target antenna port set, targets threshold }.K antenna port group be used to send first wireless signal.The K antenna port group corresponds to K channel quality value respectively.Target channel quality is the channel quality value that the target antenna port set is corresponded in the K channel quality value.The first information, which is used for determining to whether there is in the K channel quality value, is more than channel quality value of the target channel quality plus the sum of the targets threshold.The present invention supports that serving BS can report the occupied interface-free resources of beam information and electric energy to UE by the way that targets threshold is set to reduce frequently reporting for UE so as to reduce UE according to measuring whether notice serving BS needs to carry out beam switchover or correlation reports.
Description
Technical field
The present invention relates to the schemes of the multi-antenna transmission in wireless communication system.
Background technology
(Massive) MIMO (Multi-Input Multi-Output) is as one of next generation mobile communication on a large scale
Research hotspot.In extensive MIMO, mutiple antennas is formed one certain party of relatively narrow beam position and is always carried by beam shaping
High communication quality.Extensive MIMO can also form different directions, while service multiple users by mutiple antennas, to improve
The handling capacity of extensive mimo system, reduces propagation delay time.
According to 3GPP (3rd Generation Partner Project, third generation cooperative partner program) RAN1 (Radio
Access Network, wireless access network) discussion, combine analog beam excipient (analog beamforming) and number
The mixed-beam excipient (hybrid beamforming) of precoding (digital precoding) is as NR (New Radio
Technology, novel radio technology) system an important research direction.
In extensive mimo system, base station can determine the wave beam that services UE by reporting for UE, but the shifting of UE
Dynamic property can cause base station to need to switch over the UE wave beams serviced according to reporting for UE, and frequently reporting for UE does not only take up sky
Mouth resource and power consumption, the frequent switching of base station also bring along the operation burden of system.
Invention content
The present invention discloses a kind of scheme regarding to the issue above.It should be noted that in the absence of conflict, the application
UE in embodiment and embodiment in feature can be applied in base station, vice versa.Further, in the feelings not conflicted
Under condition, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
The invention discloses a kind of method in UE for multi-antenna transmission, wherein, include the following steps：
Step A. receives the first signaling；
Step B. receives the first wireless signal；
Step C. sends the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K day
Line port set be used to send first wireless signal.All antenna ports in the K antenna port group are used for
All antenna ports in same serving cell or the K antenna port group are used for same carrier wave.The K
It is greater than 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K
A antenna port group corresponds to K channel quality value respectively.Target channel quality is to correspond to the mesh in the K channel quality value
Mark the channel quality value of antenna port group.The first information is used for determining in the K channel quality value with the presence or absence of big
In the target channel quality plus the channel quality value of the sum of the targets threshold.
As one embodiment, the above method be advantageous in that support UE according to measure notice serving BS whether need into
Row beam switchover or correlation report, and serving BS can be by setting targets threshold to reduce frequently reporting for UE, so as to reduce
UE reports the occupied interface-free resources of beam information and electric energy.
As one embodiment, the beam switchover is analog beam switching.
As one embodiment, the antenna port passes through antenna virtualization by more physical antennas
(Virtualization) it is formed by stacking.The mapping coefficient of the antenna port to the more physical antennas forms beam shaping
Vector forms wave beam for the antenna virtualization.
As one embodiment, the antenna virtualization includes analog beam excipient and digital beam excipient.The simulation
Beam shaping is the mapping that RF links are output to the more physical antennas, is used to form analog beam.The digital beam
Excipient is mapping of the antenna port to RF links, is used to form digital beam.
As one embodiment, the beam shaping vector is that an analog beam excipient matrix and a digital beam are assigned
The product of type vector.The analog beam excipient matrix is made of one or more analog beam excipient vector.
As one embodiment, the beam shaping vector is that an analog beam excipient vector and a digital beam are assigned
The Kronecker products of type vector.
As one embodiment, the antenna virtualization only includes analog beam excipient.
As one embodiment, the antenna port group is made of an antenna port.
As one embodiment, the antenna port group is made of multiple antenna ports.
In implementing as one, the different digital beam excipient vector of identical analog beam excipient vector sum is used for institute
State the antenna virtualization of antenna port different in antenna port group.
As one embodiment, there are two antenna port groups in the K antenna port group, described two described
The quantity of the included antenna port is different in antenna port group.
As one embodiment, the antenna port corresponds to a reference signal.The reference signal passes through the antenna
Port is sent.
As one embodiment, the reference signal is a reference mark.
As one embodiment, the reference signal is made of multiple reference marks.One reference mark accounts for a RE
(Resource Element,RE)。
As one embodiment, the reference signal is SS (Synchronization Signal, synchronizing signal).
As one embodiment, the reference signal is that (Primary Synchronization Signal, master are same by PSS
Walk signal).
As one embodiment, the reference signal be SSS (Secondary Synchronization Signal,
Two synchronizing signals).
As one embodiment, the reference signal is CSI-RS (Channel State Information
Reference Signal, channel state information reference signals).
As one embodiment, the reference signal is DMRS (Demodulation Reference Signal, demodulation
Reference signal).
As one embodiment, the reference signal is PBCH (Physical Broadcast Channel, physical broadcast
Channel) DMRS.
As one embodiment, the reference signal is PDSCH (Physical Downlink Share Channel, object
Manage DSCH Downlink Shared Channel) DMRS.
As one embodiment, first wireless signal is multiple multicarrier symbols.
As one embodiment, first wireless signal is a SS burst.The SS bursts include multiple SS blocks.Institute
SS blocks are stated including at least a synchronizing signal.
As one embodiment, first wireless signal is a CSI-RS burst.
As one embodiment, first wireless signal is a beam scanning (beam sweep).The wave beam is swept
It is the operation of one area of space of wave cover by sending or receiving in a predetermined manner whithin a period of time to retouch.
As one embodiment, the K antenna port group corresponds to K reference signal group, the K reference signal respectively
Group is sent respectively by the K antenna port group, and first wireless signal is made of the K reference signal group.
As one embodiment, K different analog beam excipient vectors are used for the simulation of the K antenna port group
Beam shaping.
As one embodiment, at least there are two reference signal groups in a time quantum in the K reference signal group
In frequency patterns and OCC (Orthogonal Cover Code, orthogonal covering codes) be identical.Described two reference signals
It is sent in resource in different times.
As one embodiment, the time quantum is symbol.
As one embodiment, the time quantum is time slot.
As one embodiment, the time quantum is subframe (subframe).
As one embodiment, the time quantum be sTTI (short Transmission Time Interval, it is short
Transmission time length).
As one embodiment, the analog beam that the first analog beam excipient vector is used for the target antenna port is assigned
Type.
As one embodiment, the first analog beam excipient vector is also used for the downlink data transmission of the UE
Analog beam excipient.
As one embodiment, the analog beam that the first analog beam excipient vector is used for first signaling is assigned
Type.
As one embodiment, the time resource shared by third wireless signal is in the time shared by first wireless signal
Before resource, T1 antenna port group be used to send the third wireless signal.First antenna port set is the T1 day
An antenna port group in line port set.The first analog beam excipient vector is used for the first antenna port set
Analog beam excipient.The UE sends the 5th information to the sender of first wireless signal.5th information is used for
Indicate the first antenna port set.
As one embodiment, the T1 is equal to the K.
As one embodiment, the running time-frequency resource shared by the target antenna port set is in first wireless signal
Relative position is identical with relative position of the running time-frequency resource shared by the first antenna port set in the third wireless signal.
As one embodiment, the first signaling explicit instruction target antenna port set.
As one embodiment, the first signaling implicit instruction target antenna port set.
As one embodiment, the explicit instruction targets threshold of first signaling.
As one embodiment, the implicit instruction targets threshold of first signaling.
As one embodiment, first signaling is high-level signaling.
As one embodiment, first signaling is RRC (Radio Resource Control, wireless heterogeneous networks)
Signaling.
As one embodiment, first signaling is MAC layer signaling.
As one embodiment, first signaling is MAC CE (MAC Control Element, MAC controls particle).
As one embodiment, first signaling is physical layer signaling.
As one embodiment, first signaling by PDCCH (Physical Downlink Control Channel,
Physical Downlink Control Channel) carrying.
As one embodiment, first signaling is DCI (Downlink Control Information).
As one embodiment, the different piece of first signaling is sent in different message.
As one embodiment, first signaling is divided into first part and second part, and the first part is by high level
Signaling bear, the second part are carried by physical layer signaling.
As one embodiment, the part that the targets threshold is used for determining in first signaling is described first
Point, the part that the target antenna port set is used for determining in first signaling is the second part.
As one embodiment, first signaling is divided into first part and second part, and the first part is by high level
Signaling bear, the second part is by MAC layer signaling bear.
As one embodiment, first signaling is divided into first part and second part, and the first part is believed by MAC
Carrying is enabled, the second part is carried by physical layer signaling.
As one embodiment, it is used for determining the part of the targets threshold in system information in first signaling
It sends.
As one embodiment, first signaling is that cell is public.
As one embodiment, first signaling is UE specific.
As one embodiment, first signaling is that UE groups are specific.
As one embodiment, the targets threshold is equal to 0.
As one embodiment, the targets threshold is more than 0.
As one embodiment, the targets threshold is scheduled, and the target antenna port set is notified by base station.
As one embodiment, the targets threshold is notified by base station, and the target antenna port set is advance by the UE
It determines.
As one embodiment, the targets threshold and the target antenna port set are all notified by base station.
As one embodiment, the channel quality value be RSRP (Reference Signal Received Power,
One of Reference Signal Received Power), SINR, SNR }.
It whether there is as one embodiment, in the first information explicit instruction K channel quality value and be more than
The target channel quality is plus the channel quality value of the sum of the targets threshold.
It whether there is as one embodiment, in the first information implicit instruction K channel quality value and be more than
The target channel quality is plus the channel quality value of the sum of the targets threshold.
As one embodiment, the first information is by PUSCH (Physical Uplink Shared Channel, object
Manage Uplink Shared Channel) carrying.
As one embodiment, the first information by PUCCH ((Physical Uplink Control Channel,
Physical Uplink Control Channel) carrying.
As one embodiment, the first information is sent in CSI report.
As one embodiment, the first information is SR (Scheduling Request, scheduling request).
As one embodiment, the first information is an information bit in a message.
As one embodiment, represent exist more than described in the K channel quality value when described information position is equal to 1
Target channel quality represents the K letter when described information position is equal to 0 plus the channel quality value of the sum of the targets threshold
It is not present in road mass value and is more than channel quality value of the target channel quality plus the sum of the targets threshold.
As one embodiment, the first information is a UCI (Uplink Control Information, uplink
Control information) information bit in form.
In implementing as one, the first information is by RACH (Random Access Channel, random access channel)
Carrying.
As one embodiment, the first information is random access request.
As one embodiment, the first information is a characteristic sequence.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step D. sends the second information；
Wherein, second information is used for determining K1 antenna port group in the K antenna port group.The K1
A antenna port group corresponds to K1 channel quality value in the K channel quality value.Appointing in the K1 channel quality value
One channel quality value of meaning is more than the target channel quality plus the sum of described targets threshold.
As one embodiment, the above method is advantageous in that base station can determine high-quality wave beam by the second information.
As one embodiment, second information is carried by PUSCH；
As one embodiment, second information is carried by PUCCH；
As one embodiment, second information and the first information are in a message；
As one embodiment, second information and the first information are in different message；
As one embodiment, the K1 is equal to 1.
As one embodiment, the K1 is more than 1.
It is more than first channel quality as one embodiment, in the K channel quality value and adds the target threshold
The quantity of the channel quality value of the sum of value is T1, and the K1 is equal to the T1.
It is more than first channel quality as one embodiment, in the K channel quality value and adds the target threshold
The quantity of the channel quality value of the sum of value is T1, and the K1 is less than the T1.
As one embodiment, the K1 channel quality value is the K1 maximum letter in the T1 channel quality value
Road mass value.
As one embodiment, first signaling is used for determining the K1.
As one embodiment, the explicit instruction K1 of first signaling.
As one embodiment, the implicit instruction K1 of first signaling.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step E. receives second wireless singal；
Step F. sends third information；
Wherein, K2 antenna port group be used to send the second wireless singal.The K2 is greater than 1 positive integer.
The second wireless singal is associated with first wireless signal.The third information is used for determining the K2 antenna port
K3 antenna port group in group.The K3 is positive integer.The K2 antenna port group corresponds to K2 channel quality value respectively.
The K3 antenna port group corresponds to K3 channel quality value respectively.The K3 channel quality value is the K2 channel quality
K3 best channel quality value in value.
As one embodiment, the above method is advantageous in that UE has carried out candidate beam second and measured, certain journey
The robustness of optimum beam is ensure that on degree, alternatively, being carried out to wave beam further preferred.
As one embodiment, the second wireless singal is a beam scanning.
As one embodiment, the second wireless singal is a SS burst.
As one embodiment, the second wireless singal is a CSI-RS burst.
As one embodiment, the K2 is equal to the K.
As one embodiment, the K2 is not equal to the K.
As one embodiment, it is used for the K2 antenna for the beam shaping vector of the K antenna port group
The beam shaping of port set.
As one embodiment, it is used for the K2 antenna for the beam shaping vector of the K1 antenna port group
The beam shaping of port set.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step G. receives the second signaling；
Wherein, the first information be used to trigger the transmission of second signaling.Second signaling be used to trigger
The transmission of at least one of { second information, the third information }.
As one embodiment, the benefit of the above method is that UE is reported for the beam information of beam switchover and controlled by base station
System, increases the flexibility of base station scheduling.
It is described in the presence of being more than in the K channel quality value when being judged by the first information as one embodiment
When target channel quality adds the channel quality value of the sum of the targets threshold, base station sends second signaling.
As one embodiment, when first condition and second condition are provided simultaneously with, base station sends second signaling.Its
In, the first condition is to judge to exist in the K channel quality value by the first information to be more than the destination channel
Quality is plus the channel quality value of the sum of the targets threshold.The second condition is base station, and judged according to network condition can be into
The relevant beam information of row beam switchover reports.
As one embodiment, second signaling is high-level signaling.
As one embodiment, second signaling is MAC layer signaling.
As one embodiment, second signaling is MAC CE.
As one embodiment, second signaling is physical layer signaling.
As one embodiment, second signaling is carried by PDCCH.
As one embodiment, second signaling is carried by PDSCH.
As one embodiment, second signaling is DCI.
As one embodiment, second signaling is that the CSI in a DCI reports request.
As one embodiment, second signaling be also used for determining second information occupied frequency domain resource,
At least one of MCS, HARQ process number, RV, NDI, transmission antenna port }.
As one embodiment, the explicit instruction of second signaling second information occupied frequency domain resource,
At least one of MCS, HARQ process number, RV, NDI, transmission antenna port }.
As one embodiment, the implicit instruction of second signaling second information occupied frequency domain resource,
At least one of MCS, HARQ process number, RV, NDI, transmission antenna port }.
As one embodiment, second signaling be also used for determining the third information occupied frequency domain resource,
At least one of MCS, HARQ process number, RV, NDI, transmission antenna port }.
As one embodiment, the second signaling explicit instruction third information occupied frequency domain resource,
At least one of MCS, HARQ process number, RV, NDI, transmission antenna port }.
As one embodiment, the second signaling implicit instruction third information occupied frequency domain resource,
At least one of MCS, HARQ process number, RV, NDI, transmission antenna port }.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step H. sends the 4th information；
Wherein, the 4th information is used for determining in { the K1 channel quality value, the K3 channel quality value }
At least one.
As one embodiment, the above method is advantageous in that, base station can be by obtaining more channel quality informations
Increase the flexibility of scheduling.
As one embodiment, the explicit instruction K1 channel quality value of the 4th information.
As one embodiment, the implicit instruction K1 channel quality value of the 4th information.
As one embodiment, the explicit instruction K3 channel quality value of the 4th information.
As one embodiment, the implicit instruction K3 channel quality value of the 4th information.
The invention discloses a kind of method in base station for multi-antenna transmission, wherein, include the following steps：
Step A. sends the first signaling；
Step B. sends the first wireless signal；
Step C. receives the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K day
Line port set be used to send first wireless signal.All antenna ports in the K antenna port group are used for
All antenna ports in same serving cell or the K antenna port group are used for same carrier wave.The K
It is greater than 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K
A antenna port group corresponds to K channel quality value respectively.Target channel quality is to correspond to the mesh in the K channel quality value
Mark the channel quality value of antenna port group.The first information is used for determining in the K channel quality value with the presence or absence of big
In the target channel quality plus the channel quality value of the sum of the targets threshold.
As one embodiment, first signaling is the specific signalings of UE.
As one embodiment, first wireless signal is that cell is public.
As one embodiment, first wireless signal is UE specific.
As one embodiment, first wireless signal is that UE groups are specific.
As one embodiment, it is used for described first for the transmission analog beam excipient of the target antenna port set
The transmission analog beam excipient of signaling.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step D. receives the second information；
Wherein, second information is used for determining K1 antenna port group in the K antenna port group.The K1
A antenna port group corresponds to K1 channel quality value in the K channel quality value.Appointing in the K1 channel quality value
One channel quality value of meaning is more than the target channel quality plus the sum of described targets threshold.
As one embodiment, second information is included in aperiodic CSI report.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step E. sends second wireless singal；
Step F. receives third information；
Wherein, K2 antenna port group be used to send the second wireless singal.The K2 is greater than 1 positive integer.
The second wireless singal is associated with first wireless signal.The third information is used for determining the K2 antenna port
K3 antenna port group in group.The K3 is positive integer.The K2 antenna port group corresponds to K2 channel quality value respectively.
The K3 antenna port group corresponds to K3 channel quality value respectively.The K3 channel quality value is the K2 channel quality
K3 best channel quality value in value.
As one embodiment, the second wireless singal is that cell is public.
As one embodiment, the second wireless singal is UE specific.
As one embodiment, the second wireless singal is that UE groups are specific
As one embodiment, the third information is included in aperiodic CSI report.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step G. sends the second signaling；
Wherein, the first information be used to trigger the transmission of second signaling.Second signaling be used to trigger
The transmission of at least one of { second information, the third information }.
As one embodiment, the base station sends second letter according to the first information and current network conditions
It enables.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps：
Step H. receives the 4th information；
Wherein, the 4th information is used for determining in { the K1 channel quality value, the K3 channel quality value }
At least one.
As one embodiment, the 4th information is dispatched by the base station for multiuser MIMO.
As one embodiment, the 4th information is grouped by the base station for wave beam.
The invention discloses a kind of user equipment for multi-antenna transmission, wherein, including following module：
- the first receiving module：For receiving the first signaling；
- the second receiving module：For receiving the first wireless signal；
Third sending module:For sending the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K day
Line port set be used to send first wireless signal.All antenna ports in the K antenna port group are used for
All antenna ports in same serving cell or the K antenna port group are used for same carrier wave.The K
It is greater than 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K
A antenna port group corresponds to K channel quality value respectively.Target channel quality is to correspond to the mesh in the K channel quality value
Mark the channel quality value of antenna port group.The first information is used for determining in the K channel quality value with the presence or absence of big
In the target channel quality plus the channel quality value of the sum of the targets threshold.
As one embodiment, above-mentioned user equipment is characterized in that, the third sending module is also used for transmission
Two information.Wherein, second information is used for determining K1 antenna port group in the K antenna port group.The K1
A antenna port group corresponds to K1 channel quality value in the K channel quality value.Appointing in the K1 channel quality value
One channel quality value of meaning is more than the target channel quality plus the sum of described targets threshold.
As one embodiment, above-mentioned user equipment is characterized in that, second receiving module is also used for reception
Two wireless signals, the third sending module also be used to send third information.Wherein, K2 antenna port group be used to send
The second wireless singal.The K2 is greater than 1 positive integer.The second wireless singal is closed with first wireless signal
Connection.The third information is used for determining K3 antenna port group in the K2 antenna port group.The K3 is positive integer.
The K2 antenna port group corresponds to K2 channel quality value respectively.The K3 antenna port group corresponds to K3 channel matter respectively
Magnitude.The K3 channel quality value is K3 channel quality value best in the K2 channel quality value.
As one embodiment, above-mentioned user equipment is characterized in that, first receiving module is also used for reception
Two signalings.The first information be used to trigger the transmission of second signaling.Second signaling is used for triggering { described the
Two information, the third information } at least one of transmission.
As one embodiment, above-mentioned user equipment is characterized in that, the third sending module is also used for transmission
Four information.Wherein, the 4th information is used for determining in { the K1 channel quality value, the K3 channel quality value } extremely
It is one of few.
The invention discloses a kind of base station equipment for multi-antenna transmission, wherein, including following module：
- the first sending module：For sending the first signaling；
- the second sending module：For sending the first wireless signal；
Third receiving module：For receiving the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K day
Line port set be used to send first wireless signal.All antenna ports in the K antenna port group are used for
All antenna ports in same serving cell or the K antenna port group are used for same carrier wave.The K
It is greater than 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K
A antenna port group corresponds to K channel quality value respectively.Target channel quality is to correspond to the mesh in the K channel quality value
Mark the channel quality value of antenna port group.The first information is used for determining in the K channel quality value with the presence or absence of big
In the target channel quality plus the channel quality value of the sum of the targets threshold.
As one embodiment, above-mentioned base station equipment is characterized in that, the third receiving module is also used for reception
Two information.Wherein, second information is used for determining K1 antenna port group in the K antenna port group.The K1
A antenna port group corresponds to K1 channel quality value in the K channel quality value.Appointing in the K1 channel quality value
One channel quality value of meaning is more than the target channel quality plus the sum of described targets threshold.
As one embodiment, above-mentioned base station equipment is characterized in that, second sending module is also used for transmission
Two wireless signals, the third receiving module also be used to receive third information.Wherein, K2 antenna port group be used to send
The second wireless singal.The K2 is greater than 1 positive integer.The second wireless singal is closed with first wireless signal
Connection.The third information is used for determining K3 antenna port group in the K2 antenna port group.The K3 is positive integer.
The K2 antenna port group corresponds to K2 channel quality value respectively.The K3 antenna port group corresponds to K3 channel matter respectively
Magnitude.The K3 channel quality value is K3 channel quality value best in the K2 channel quality value.
As one embodiment, above-mentioned base station equipment is characterized in that, first sending module is also used for transmission
Two signalings.Wherein, the first information be used to trigger the transmission of second signaling.Second signaling be used to trigger
The transmission of at least one of { second information, the third information }.
As one embodiment, above-mentioned base station equipment is characterized in that, the third receiving module is also used for reception
Four information.Wherein, the 4th information is used for determining in { the K1 channel quality value, the K3 channel quality value } extremely
It is one of few.
It is compared with traditional scheme, the present invention has following advantage：
Save the empty overhead reported for the beam information of beam switchover；
It saves UE and is used for the electric energy that beam information reports；
Base station can be controlled by way of setting targets threshold and report frequency；
Repeatedly report the robustness that ensure that beam switchover；
It is reported for the beam information of beam switchover by base station control, beam information is reported so as to increase base station
The flexibility of scheduling.
Multiple candidate's antenna ports and channel quality value report the flexibility for further increasing base station scheduling.
Description of the drawings
By reading with reference to the detailed description made to non-limiting example in the following drawings, other spies of the invention
Sign, objects and advantages will become more apparent：
Fig. 1 shows the flow chart of wireless transmission according to an embodiment of the invention；
Fig. 2 shows the schematic diagrames of the analog beam excipient of K reference signal group according to an embodiment of the invention.
Fig. 3 has gone out the time diagram of K reference signal group according to an embodiment of the invention.
Fig. 4 shows the structure diagram of the processing unit according to an embodiment of the invention in UE；
Fig. 5 shows the structure diagram of the processing unit according to an embodiment of the invention in base station.
Embodiment 1
Embodiment 1 illustrates the flow chart of wireless transmission, as shown in Figure 1.In attached drawing 1, base station N1 is the service of UE U2
Cell maintains base station.In attached drawing 1, the step in box F1, box F2, box F3 and box F4 is optional respectively.
For N1, the first signaling is sent in step s 11；The first wireless signal is sent in step s 12；In step S13
The middle reception first information；The second signaling is sent at step 14；The second information is received in step S15；It sends in step s 16
Second wireless singal；Third information is received in step S17；The 4th information is received in step S18.
For U2, the first signaling is received in the step s 21；The first wireless signal is received in step S22；In step S23
The middle transmission first information；The second signaling is received in step s 24；The second information is sent in step s 25；It is connect in step S26
Receive second wireless singal；Third information is sent in step s 27；The 4th information is sent in step S28.
In embodiment 1, first signaling by U2 for determine in { target antenna port set, targets threshold } at least it
One.K antenna port group is used to send first wireless signal by N1.All antennas in the K antenna port group
Port is used for same by N1 for all antenna ports in same serving cell or the K antenna port group by N1
One carrier wave.The K is greater than 1 positive integer.The target antenna port set is a day in the K antenna port group
Line port set.The K antenna port group corresponds to K channel quality value respectively.Target channel quality is the K channel quality
The channel quality value of the target antenna port set is corresponded in value.The first information is used to determine the K channel matter by N1
It whether there is in magnitude and be more than channel quality value of the target channel quality plus the sum of the targets threshold.
As the sub- embodiment 1 of embodiment 1, the K antenna port group corresponds to K reference signal group, described with reference to letter
Reference signal in number group is broadband reference signal, and the channel quality value is instantaneous wideband RSRP.
As the sub- embodiment 2 of embodiment 1, second information is used to determine in the K antenna port group by N1
K1 antenna port group.The K1 antenna port group corresponds to K1 channel quality value in the K channel quality value.It is described
Any one channel quality value in K1 channel quality value is more than the target channel quality plus the sum of described targets threshold.
As the sub- embodiment 3 of embodiment 1, the first information is a SR, and U2 sends first letter on PUCCH
Breath and second information.
As the sub- embodiment 4 of embodiment 1, the targets threshold is more than 0, and the first information is in CSI report (CSI
Report it is sent in), N1 determines to exist in the K channel quality value by the first information is more than the destination channel matter
Then amount is used for plus the channel quality value of the sum of the targets threshold using the content in CSI report as second information
Beam switchover.The CSI report is at least one of { periodical CSI report, aperiodicity CSI report }.
As the sub- embodiment 5 of embodiment 1, the first information is an information bit in CSI report.Described information position
It represents to be not present in the K channel quality value equal to 0 and is more than the target channel quality plus the sum of the targets threshold
Channel quality value；Described information position is equal to exist in the 1 expression K channel quality value to be added more than the target channel quality
The channel quality value of the sum of the targets threshold.
As the sub- embodiment 6 of embodiment 1, the first information is used to trigger the transmission of second signaling by N1.Institute
State the transmission that the second signaling is used to trigger second information by U2.
As the sub- embodiment 7 of embodiment 1, N1 is after { first information, second information } is received sequentially
The wave beam of subsequent transmission is used for using the corresponding beam shaping vector of T1 antenna port group in the K1 antenna port group
Excipient.The T1 is positive integer.
As the sub- embodiment 8 of embodiment 1, the first information is a SR, and second signaling is to call PUSCH
DCI in CSI request (CSI request), U2 receive N1 transmission second signaling after, on PUSCH send { institute
At least one of state the second information, the third information, the 4th information }.
As the sub- embodiment 9 of embodiment 1, the first information is a characteristic sequence, and UE initiates random access request,
The characteristic sequence is sent on RACH, N1 passes through corresponding RAR (Random Access after the characteristic sequence is received
Response, random access are responded) send second signaling.
As the sub- embodiment 10 of embodiment 1, K2 antenna port group is used to send the second wireless singal by N1.Institute
State the positive integer that K2 is greater than 1.The second wireless singal is associated with first wireless signal.The third information is used by N1
In determining K3 antenna port group in the K2 antenna port group.The K3 is positive integer.The K2 antenna port group
K2 channel quality value is corresponded to respectively.The K3 antenna port group corresponds to K3 channel quality value respectively.The K3 channel
Mass value is K3 channel quality value best in the K2 channel quality value.
As the sub- embodiment 11 of embodiment 1, the first information is used to trigger the transmission of second signaling by N1.Institute
State the transmission that the second signaling is used to trigger the third information by U2.
As the sub- embodiment 12 of embodiment 1, the K2 is equal to the K, the corresponding wave beam tax of the K antenna port group
Type vector is used for the beam shaping of the K2 antenna port group, and N1 is being received sequentially { first information, the third
Information } after be used for using the corresponding beam shaping vector of T1 antenna port group in the K3 antenna port group after resume
Defeated beam shaping.The T1 is positive integer.
As the sub- embodiment 13 of embodiment 1, the 4th information by N1 for determine the K1 channel quality value,
At least one of the K3 channel quality value }.
As the sub- embodiment 14 of embodiment 1, N1 receive second information, the third information, the described 4th
Information } at least one of rear carry out beam switchover.
As the sub- embodiment 10 of embodiment 1, the N1 is after the 4th information is received, for multiple UE's
CSI report selects T1 antenna end from least one of { the K1 antenna port group, described K3 antenna port group }
Mouth organizes the beam shaping that corresponding beam shaping vector is used for subsequent transmission.
Embodiment 2
Embodiment 2 illustrates the schematic diagram of the analog beam excipient of K reference signal group, as shown in Figure 2.
In example 2, the K reference signal group and K antenna port group correspond.In the reference signal group
Reference signal quantity be equal to the corresponding antenna port group in antenna port quantity.
In example 2, the corresponding physical antenna of an antenna port is divided into S antenna sets, each antenna
Group includes more antennas.The S is positive integer.The antenna port is virtual by antenna by more antennas in S antenna sets
Change (Virtualization) to be formed by stacking, the mapping coefficient of more antennas in the S antenna sets to the antenna port
Form beam shaping vector.One antenna sets is connected by a RF (Radio Frequency, radio frequency) links (Chain)
It is connected to baseband processor.One beam shaping vector from one digital beam shaping of analog beam excipient vector sum to
The Kronecker products of amount are formed.The mapping coefficient of more antennas to the antenna port in the same antenna sets forms
The analog beam excipient vector of this antenna sets, the different antennae group that an antenna port includes correspond to identical analog wave
Beam excipient vector.The mapping coefficient of difference RF links to the antenna port that one antenna port includes forms this
The digital beam excipient vector of a antenna port.
As the sub- embodiment 1 of embodiment 2, the reference signal group only includes a reference signal, the reference
Reference signal in signal group is sent by the antenna port in corresponding transmission antenna port set.
As the sub- embodiment 2 of embodiment 2, the reference signal group only includes multiple reference signals, the reference
Multiple reference signals in signal group are sent respectively by the mutiple antennas port in corresponding transmission antenna port set.Described in one
The difference antenna port in antenna port group corresponds to identical analog beam excipient vector.
As the sub- embodiment 3 of embodiment 2, the difference antenna port in an antenna port group corresponds to different
The digital beam excipient vector.
As the sub- embodiment 4 of embodiment 2, the K antenna port group is the subset of M antenna port group, UE according to
Auxiliary information is sent for the measurement in the M antenna port group, base station determines according to the auxiliary information and is UE configurations
The K antenna port group.
Embodiment 3
Embodiment 3 illustrates the time diagram of K reference signal group, as shown in Figure 3.
In embodiment 3, K antenna port group corresponds to K reference signal group.Arbitrary two in the K reference signal group
A occupied time-domain resource of reference signal group is orthogonal.Any two reference signal group in the K reference signal group
Corresponding analog beam excipient vector is not construed as identical.The K reference signal group occupies K time window.The K
A time window is orthogonal in the time domain.
As the sub- embodiment 1 of embodiment 3, attached drawing 3 describes the primary transmission of the K reference signal group.The K
Reference signal group is periodicity sending.
As the sub- embodiment 2 of embodiment 3, in a time window, the reference signal uses the pattern of CSI-RS.
As the sub- embodiment 3 of embodiment 3, in a time window, the reference signal uses the pattern of SS.
As the sub- embodiment 4 of embodiment 3, the time window in attached drawing 3 includes Q1 OFDM symbol, and the Q1 is
One kind in { 2,4,7,14 }.
Embodiment 4
Embodiment 4 is illustrated for the structure diagram of the processing unit in UE, as shown in Figure 4.In figure 4, UE is filled
200 are put mainly by the first receiving module 201, and the second receiving module 202 and third sending module 203 form.
In example 4, the first receiving module 201 is for the first signaling of reception；Second receiving module 202 is for receiving the
One wireless signal；Third sending module 203 is used to send the first information.
In example 4, first signaling be used for determining in { target antenna port set, targets threshold } at least it
One.K antenna port group be used to send first wireless signal.All antenna ends in the K antenna port group
All antenna ports that mouth is used in same serving cell or the K antenna port group are used for same load
Wave.The K is greater than 1 positive integer.The target antenna port set is an antenna port in the K antenna port group
Group.The K antenna port group corresponds to K channel quality value respectively.Target channel quality is right in the K channel quality value
Answer the channel quality value of the target antenna port set.The first information is used for determining in the K channel quality value
The no channel quality value existed more than the target channel quality plus the sum of the targets threshold.
As the sub- embodiment 1 of embodiment 4, the third sending module 203 also be used to send the second information.Wherein,
Second information is used for determining K1 antenna port group in the K antenna port group.The K1 antenna port group
K1 channel quality value in the corresponding K channel quality value.Any one channel matter in the K1 channel quality value
Magnitude is more than the target channel quality plus the sum of described targets threshold.
As the sub- embodiment 2 of embodiment 4, second receiving module also be used to receive second wireless singal, described
Third sending module also be used to send third information.Wherein, K2 antenna port group be used to send second wireless communication
Number.The K2 is greater than 1 positive integer.The second wireless singal is associated with first wireless signal.The third information
K3 antenna port group being used for determining in the K2 antenna port group.The K3 is positive integer.The K2 antenna end
Mouth group corresponds to K2 channel quality value respectively.The K3 antenna port group corresponds to K3 channel quality value respectively.The K3
Channel quality value is K3 channel quality value best in the K2 channel quality value.
As the sub- embodiment 3 of embodiment 4, first receiving module also be used to receive the second signaling.Wherein, it is described
The first information be used to trigger the transmission of second signaling.Second signaling be used for triggering second information, it is described
Third information } at least one of transmission.
As the sub- embodiment 4 of embodiment 4, the third sending module also be used to send the 4th information.Wherein, it is described
4th information is used for determining at least one of { the K1 channel quality value, described K3 channel quality value }.
Embodiment 5
Embodiment 5 is illustrated for the structure diagram of the processing unit in base station, as shown in Figure 5.In figure 5, base
Mainly by the first sending module 301, the second sending module 302 and third receiving module 303 form station arrangement 300.
In embodiment 5, the first sending module 301 is for the first signaling of transmission；Second sending module 302 is for sending the
One wireless signal；Third receiving module is used to receive the first information.
In embodiment 5, first signaling be used for determining in { target antenna port set, targets threshold } at least it
One.K antenna port group be used to send first wireless signal.All antenna ends in the K antenna port group
All antenna ports that mouth is used in same serving cell or the K antenna port group are used for same load
Wave.The K is greater than 1 positive integer.The target antenna port set is an antenna port in the K antenna port group
Group.The K antenna port group corresponds to K channel quality value respectively.Target channel quality is right in the K channel quality value
Answer the channel quality value of the target antenna port set.The first information is used for determining in the K channel quality value
The no channel quality value existed more than the target channel quality plus the sum of the targets threshold.
As the sub- embodiment 1 of embodiment 5, the third receiving module also be used to receive the second information.Wherein, it is described
Second information is used for determining K1 antenna port group in the K antenna port group.The K1 antenna port group corresponds to
K1 channel quality value in the K channel quality value.Any one channel quality value in the K1 channel quality value
More than the target channel quality plus the sum of described targets threshold.
As the sub- embodiment 2 of embodiment 5, second sending module also be used to send second wireless singal, described
Third receiving module also be used to receive third information.Wherein, K2 antenna port group be used to send second wireless communication
Number.The K2 is greater than 1 positive integer.The second wireless singal is associated with first wireless signal.The third information
K3 antenna port group being used for determining in the K2 antenna port group.The K3 is positive integer.The K2 antenna end
Mouth group corresponds to K2 channel quality value respectively.The K3 antenna port group corresponds to K3 channel quality value respectively.The K3
Channel quality value is K3 channel quality value best in the K2 channel quality value.
As the sub- embodiment 3 of embodiment 5, first sending module also be used to send the second signaling.Wherein, it is described
The first information be used to trigger the transmission of second signaling.Second signaling be used for triggering second information, it is described
Third information } at least one of transmission.
As the sub- embodiment 4 of embodiment 5, the third receiving module also be used to receive the 4th information.Wherein, it is described
4th information is used for determining at least one of { the K1 channel quality value, described K3 channel quality value }.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be referred to by program
Related hardware is enabled to complete, described program can be stored in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, all or part of step of above-described embodiment can also be realized using one or more integrated circuit.Phase
It answers, each modular unit in above-described embodiment, example, in hardware realization may be used, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.UE or terminal in the present invention are included but not
It is limited to the wireless telecom equipments such as mobile phone, tablet computer, notebook, card of surfing Internet, NB-IOT terminals, eMTC terminals.In the present invention
Base station or system equipment include but not limited to the wireless communications such as macrocell base stations, microcell base station, Home eNodeB, relay base station
Equipment.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification for being made, equivalent replacement, improve etc., it should be included in the protection of the present invention
Within the scope of.
Claims (12)
1. a kind of method in UE for multi-antenna transmission, wherein, include the following steps：
Step A. receives the first signaling；
Step B. receives the first wireless signal；
Step C. sends the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K antenna end
Mouth group be used to send first wireless signal.All antenna ports in the K antenna port group are used for same
All antenna ports in a serving cell or the K antenna port group are used for same carrier wave.The K is big
In 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K day
Line end mouth group corresponds to K channel quality value respectively.Target channel quality is to correspond to the target day in the K channel quality value
The channel quality value of line port set.The first information, which is used for determining to whether there is in the K channel quality value, is more than institute
State channel quality value of the target channel quality plus the sum of the targets threshold.
2. according to the method described in claim 1, it is characterized in that, further include following steps：
Step D. sends the second information；
Wherein, second information is used for determining K1 antenna port group in the K antenna port group.The K1 day
Line port set corresponds to K1 channel quality value in the K channel quality value.It is any one in the K1 channel quality value
A channel quality value is more than the target channel quality plus the sum of described targets threshold.
3. according to the method described in claim 1-2, which is characterized in that further include following steps：
Step E. receives second wireless singal；
Step F. sends third information；
Wherein, K2 antenna port group be used to send the second wireless singal.The K2 is greater than 1 positive integer.It is described
Second wireless singal is associated with first wireless signal.The third information is used for determining in the K2 antenna port group
K3 antenna port group.The K3 is positive integer.The K2 antenna port group corresponds to K2 channel quality value respectively.It is described
K3 antenna port group corresponds to K3 channel quality value respectively.The K3 channel quality value is in the K2 channel quality value
K3 best channel quality value.
4. according to the method described in claim 1-3, which is characterized in that further include following steps：
Step G. receives the second signaling；
Wherein, the first information be used to trigger the transmission of second signaling.It is { described that second signaling is used for triggering
Second information, the third information } at least one of transmission.
5. according to the method for claim 1-4, which is characterized in that further include following steps：
Step H. sends the 4th information；
Wherein, the 4th information is used for determining in { the K1 channel quality value, the K3 channel quality value } at least
One of.
6. a kind of method in base station for multi-antenna transmission, wherein, include the following steps：
Step A. sends the first signaling；
Step B. sends the first wireless signal；
Step C. receives the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K antenna end
Mouth group be used to send first wireless signal.All antenna ports in the K antenna port group are used for same
All antenna ports in a serving cell or the K antenna port group are used for same carrier wave.The K is big
In 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K day
Line end mouth group corresponds to K channel quality value respectively.Target channel quality is to correspond to the target day in the K channel quality value
The channel quality value of line port set.The first information, which is used for determining to whether there is in the K channel quality value, is more than institute
State channel quality value of the target channel quality plus the sum of the targets threshold.
7. according to the method described in claim 1, it is characterized in that, further include following steps：
Step D. receives the second information；
Wherein, second information is used for determining K1 antenna port group in the K antenna port group.The K1 day
Line port set corresponds to K1 channel quality value in the K channel quality value.It is any one in the K1 channel quality value
A channel quality value is more than the target channel quality plus the sum of described targets threshold.
8. according to the method described in claim 1-2, which is characterized in that further include following steps：
Step E. sends second wireless singal；
Step F. receives third information；
Wherein, K2 antenna port group be used to send the second wireless singal.The K2 is greater than 1 positive integer.It is described
Second wireless singal is associated with first wireless signal.The third information is used for determining in the K2 antenna port group
K3 antenna port group.The K3 is positive integer.The K2 antenna port group corresponds to K2 channel quality value respectively.It is described
K3 antenna port group corresponds to K3 channel quality value respectively.The K3 channel quality value is in the K2 channel quality value
K3 best channel quality value.
9. according to the method described in claim 1-3, which is characterized in that further include following steps：
Step G. sends the second signaling；
Wherein, the first information be used to trigger the transmission of second signaling.It is { described that second signaling is used for triggering
Second information, the third information } at least one of transmission.
10. according to the method for claim 1-4, which is characterized in that further include following steps：
Step H. receives the 4th information；
Wherein, the 4th information is used for determining in { the K1 channel quality value, the K3 channel quality value } at least
One of.
11. a kind of user equipment for multi-antenna transmission, wherein, including following module：
- the first receiving module：For receiving the first signaling；
- the second receiving module：For receiving the first wireless signal；
Third sending module:For sending the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K antenna end
Mouth group be used to send first wireless signal.All antenna ports in the K antenna port group are used for same
All antenna ports in a serving cell or the K antenna port group are used for same carrier wave.The K is big
In 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K day
Line end mouth group corresponds to K channel quality value respectively.Target channel quality is to correspond to the target day in the K channel quality value
The channel quality value of line port set.The first information, which is used for determining to whether there is in the K channel quality value, is more than institute
State channel quality value of the target channel quality plus the sum of the targets threshold.
12. a kind of base station equipment for multi-antenna transmission, wherein, including following module：
- the first sending module：For sending the first signaling；
- the second sending module：For sending the first wireless signal；
Third receiving module：For receiving the first information；
Wherein, first signaling is used for determining at least one of { target antenna port set, targets threshold }.K antenna end
Mouth group be used to send first wireless signal.All antenna ports in the K antenna port group are used for same
All antenna ports in a serving cell or the K antenna port group are used for same carrier wave.The K is big
In 1 positive integer.The target antenna port set is an antenna port group in the K antenna port group.The K day
Line end mouth group corresponds to K channel quality value respectively.Target channel quality is to correspond to the target day in the K channel quality value
The channel quality value of line port set.The first information, which is used for determining to whether there is in the K channel quality value, is more than institute
State channel quality value of the target channel quality plus the sum of the targets threshold.
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| WO2020029965A1 (en) * | 2018-08-10 | 2020-02-13 | 华为技术有限公司 | Channel state information transmission method and apparatus |
| WO2022017127A1 (en) * | 2020-07-20 | 2022-01-27 | 上海朗帛通信技术有限公司 | Method and apparatus used in user equipment and base station for wireless communication |
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