CN107547118A - A kind of method and apparatus in radio communication - Google Patents
A kind of method and apparatus in radio communication Download PDFInfo
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- CN107547118A CN107547118A CN201610493535.6A CN201610493535A CN107547118A CN 107547118 A CN107547118 A CN 107547118A CN 201610493535 A CN201610493535 A CN 201610493535A CN 107547118 A CN107547118 A CN 107547118A
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- subsignal
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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
-
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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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 proposes the method and apparatus in a kind of radio communication.UE receives the first wireless signal first；Then second wireless singal is sent.Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P subsignal, and the P subsignal carries identical information.Time-domain resource or frequency domain resource in the P subsignal described in any two shared by subsignal are orthogonal.The P subsignal is sent by P antenna port group respectively, and the antenna port group includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal is sent by identical antenna port group.The invention enables the robustness that UE can maintain uplink.Further, the present invention supports the beam shaping of different accuracy and wave beam to mop up, and meets the needs of different business.
Description
Technical field
The present invention relates to the method and apparatus of multi-antenna transmission in mobile communication technology field, more particularly to base station side to dispose
Radio communication system in the scenes of a large amount of antennas.
Background technology
Large scale (Massive) MIMO turns into a study hotspot of next generation mobile communication.It is multiple in large scale MIMO
Antenna forms narrower one certain party of beam position and always improves communication quality by beam shaping.Multi-antenna beam excipient
The wave beam of formation is typically narrow, and the partial channel knowledge that communicating pair needs to obtain other side just can make the beam position to be formed just
True direction.Before the partial channel knowledge that communicating pair obtains other side, reliably it is wirelessly transferred as a problem.
The present invention discloses a solution regarding to the issue above.It should be noted that in the case where not conflicting, this
The feature in embodiment and embodiment in the UE (User Equipment, user equipment) of application may apply in base station,
Vice versa.Further, in the case where not conflicting, the feature in embodiments herein and embodiment can be arbitrarily mutual
Combination.
The content of the invention
Inventor is had found by studying, when UE (User Equipment, user equipment) does not obtain the CSI of up channel
When (Channel Status Information, channel condition information), UE needs to use bigger redundancy to ensure to send
Signal is properly received, for example wave beam mops up (Beam Sweeping) scheme, i.e. UE passes through TDM (Timing Division
Multiplexing, be time-multiplexed) mode repeatedly send same signal, every time send for different directions wave beam.When
After UE obtains the CSI of (part) up channel, UE can reduce redundancy by the way of beam shaping, improve efficiency of transmission,
Ensure the quality of reception of transmission signal simultaneously.
According to above-mentioned analysis, the invention discloses a kind of method being used in the UE of multi-antenna transmission, wherein, including such as
Lower step：
- step A. receives the first wireless signal；
- step B. sends second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P
Individual subsignal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two
Time-domain resource or frequency domain resource be orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna
Port set includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by phase
Same antenna port group is sent.
As one embodiment, the implicit instruction P of first wireless signal.A son as the present embodiment is real
Example is applied, first wireless signal includes { the first signaling, the first data }, and first signaling includes the tune of first data
Information is spent, the subsignal indicates whether first data are properly decoded.Signaling corresponding to first signaling identifies quilt
For determining the P, the signaling mark is positive integer.As one embodiment, first signaling is DCI (Downlink
Control Information, Downlink Control Information), the signaling of first signaling mark be RA (Random Access, with
Machine accesses)-RNTI (Radio Network Temporary Identifier, the tentative mark of wireless network), the P is more than 1.
As one embodiment, first signaling is DCI, and the signaling of first signaling mark is C (Cell, cell)-RNTI, institute
P is stated equal to 1.
As one embodiment, above-mentioned schedule information includes { shared running time-frequency resource, MCS (Modulation and
Coding Status, modulation coding state), RV (Redundancy Version, redundancy versions), HARQ process numbers
At least one of (Process Number) }.
As one embodiment, the explicit instruction P of first wireless signal.A son as the present embodiment is real
Apply example, an information bit in first wireless signal indicates that the P is 1 or P1, and the P1 is more than 1.As one
Embodiment, the P1 are fixed constants.As one embodiment, the P1 is configurable.
As one embodiment, the time-domain resource in the P subsignal described in any two shared by subsignal is just
(not overlapping i.e. in time domain) handed over.
As one embodiment, the subsignal includes UCI (Uplink Control Information, upload control
Information), the UCI includes { HARQ-ACK/NACK, SR (Scheduling Requests, dispatch request), CQI (Channel
Quality Indicator, channel quality instruction) feedback, RI (Rank Indicator, order instruction) feedbacks, PMI
(Precoding Matrix Indicator, pre-coding matrix instruction), CRI (CSI-RS Resource Indicator,
At least one of CSI-RS indicates) }.
As one embodiment, physical layer channel includes down physical layer control channel corresponding to first wireless signal
(down channel for being simply possible to use in carrying physical layer signaling).As one embodiment, the down physical layer control channel is
PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel)
As one embodiment, physical layer channel corresponding to first wireless signal includes down physical layer data channel
(down channel for carrying physical layer data can be used for).As one embodiment, the down physical layer data channel is
PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).
As one embodiment, transmission channel corresponding to first wireless signal is DL-SCH (Downlink Shared
Channel, DSCH Downlink Shared Channel).
As one embodiment, first wireless signal also includes physical layer data.
As one embodiment, physical layer channel corresponding to the second wireless singal includes upstream physical layer control channel
(up channel for being simply possible to use in carrying physical layer signaling).As one embodiment, the upstream physical layer control channel is
PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel).
As one embodiment, physical layer channel corresponding to the second wireless singal includes upstream physical layer data channel
(up channel for carrying physical layer data can be used for).As one embodiment, the upstream physical layer data channel is
PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel).
As one embodiment, transmission channel corresponding to the second wireless singal is UL-SCH (Uplink Shared
Channel, Uplink Shared Channel).
As one embodiment, the antenna port group includes 1 antenna port.
As one embodiment, day included in two antenna port groups in the P antenna port group at least be present
The quantity of line end mouth is different.
As one embodiment, the quantity of included antenna port is identical in the P antenna port group.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The small dimensional properties for the wireless channel that the signal that first antenna port is sent is undergone can not be by institute
The recipient for stating second wireless singal is used for the small yardstick for inferring the wireless channel that the signal that the second antenna port is sent is undergone
Characteristic.The first antenna port and second antenna port are belonging respectively to two differences in the P antenna port group
Antenna port group, the small dimensional properties include channel impulse response.
As one embodiment, the antenna port is to pass through antenna virtualization (Virtualization) by more antennas
It is formed by stacking, the mapping coefficient composition beam shaping vector of the more antennas to the antenna port.Second wireless communication
Number recipient cannot assume that the P subsignal by identical antenna port group send refer to：In the P antenna port group
Any two antenna port corresponding to beam shaping vector can not be assumed to be it is identical.
In the above-described embodiments, the different antenna ports can send the using the different beam shaping vectors
Two wireless signals, the different beam shaping vectors are respectively directed to different directions.When the UE does not obtain up channel also
CSI when, the base station can indicate the UE in P>Sent in 1 antenna port group with different beam shaping directions
The secondary signal, so as to strengthen the transmission reliability of the second wireless singal.When the UE obtains (part) up channel
CSI after, the base station can indicate that UE is vectorial by a specific beam shaping in P=1 antenna port groups
The second wireless singal is sent, transmitting redundancy is being reduced, is ensureing the second wireless singal while improving efficiency of transmission
Transmission reliability.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The recipient of the second wireless singal does not utilize any two in the P antenna port group
Wireless signal transmitted by individual antenna port performs joint channel estimation.
As one embodiment, the beam shaping vector corresponding to the antenna port is by an analog beam excipient
What the product of matrix and a digital beam shaping vector was formed.As a sub- embodiment, the P antenna port component
Do not correspond to P analog beam excipient matrix, the antenna port in the same antenna port group corresponds to same analog beam
Excipient matrix.As a sub- embodiment, analog beam excipient square corresponding to the antenna port in the different antenna port groups
Battle array is different.As a sub- embodiment, the different antennae port in the same antenna port group corresponds to different numbers
Word beam shaping vector.
In the above-described embodiments, analog wave described in identical corresponding to the antenna port in the same antenna port group
Beam excipient matrix is used to form an identical broad beam on the antenna port in the same antenna port group；It is same
Different digital beam excipients vector is used in the same day corresponding to antenna port in the antenna port group
The different narrow beams formed on antenna port in line port set in the broad beam.In this manner, the UE can
Mopped up with flexibly carrying out the wave beam under two kinds of different accuracies.The base station can be by measuring the different antenna port group institutes
The wireless signal of transmission carries out the selection of the broad beam；The base station can also be by measuring the same antenna port group
Wireless signal transmitted by interior different antennae port carries out the selection of the narrow beam in the corresponding broad beam.This
Sample, the base station can flexibly aid in the beam shaping of two kinds of different accuracies of the UE supports.
As one embodiment, the different antennae port in the same antenna port group is with TDM (Timing
Division Multiplexing, are time-multiplexed) mode send the second wireless singal.
As one embodiment, the different antennae port in the same antenna port group is with FDM (Frequency
Division Multiplexing, frequency division multiplexing) mode send the second wireless singal.
As one embodiment, the different antennae port in the same antenna port group is with CDM (Code
Division Multiplexing, code division multiplexing) mode send the second wireless singal.
As one embodiment, the different antennae port in the same antenna port group is come in a manner of sending diversity
Send the second wireless singal.As a sub- embodiment, the transmission diversity is SFBC (Space Frequency
Block Coding, space-frequency block codes).As a sub- embodiment, the transmission diversity is STBC (Space Time Block
Coding, space-time block code).
Specifically, according to an aspect of the present invention, it is characterised in that the step A also comprises the following steps：
- step A0. receives the first high-level signaling, and first high-level signaling indicates P1.
Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
As one embodiment, first high-level signaling is RRC (Radio Resource Control, Radio Resource
Control) signaling.
As one embodiment, first high-level signaling is that cell is specific.
As one embodiment, first high-level signaling is UE specific.
Specifically, according to an aspect of the present invention, it is characterised in that also comprise the following steps：
- step C. receives the 3rd wireless signal；
- step D. sends the 4th wireless signal；
Wherein described 3rd wireless signal be used for determining in { target antenna port set, T primary vector } at least it
One.The target antenna port set is one in the P antenna port group, and the 4th wireless signal is by T antenna end
Mouthful send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T individual the
One vector is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
As one embodiment, the second wireless singal includes P RS port set, the P RS port sets respectively and
The P antenna port group corresponds, in the quantity and corresponding antenna port group of the RS ports in the RS port sets
The quantity of antenna port is identical, the antenna port one in RS ports and the corresponding antenna port group in the RS port sets
One correspondence, the RS ports are sent by corresponding antenna port.As one embodiment, RS sequences corresponding to the RS ports are
Zadoff-Chu sequence.As one embodiment, the RU (Resource Unit, resource units) shared by the RS ports exists
It is discontinuous on frequency domain, the RU takes the duration of an OFDM symbol in time domain, and a son is taken on frequency domain
The bandwidth at carrier wave interval.As one embodiment, the RU is RE (Resource Element, resource particle).As one
Embodiment, the frequency domain interval between adjacent RU shared by the RS ports is identical.It is same as one embodiment
The RS sequences corresponding to the different RS ports that the RS port sets include are different.As one embodiment, together
The RS sequences corresponding to the different RS ports that one RS port set includes are mutually orthogonal.
As one embodiment, pattern of the RS ports inside a time frequency block is SRS inside a time frequency block
Pattern, the time frequency block takes OFDM duration in time domain, is no more than 20MHz in the bandwidth that frequency domain takes
(megahertz).As one embodiment, the bandwidth that the RS ports take on frequency domain includes multiple time frequency blocks in frequency domain
On bandwidth.
As one embodiment, the 3rd wireless signal transmits on down physical layer control channel.As a reality
Example is applied, the down physical layer control channel is PDCCH.
As one embodiment, the 3rd wireless signal transmits on down physical layer data channel.As a reality
Example is applied, the down physical layer data channel is PDSCH.
As one embodiment, transmission channel corresponding to the 3rd wireless signal is DL-SCH.
As one embodiment, the 3rd wireless signal also includes physical layer data.
As one embodiment, the 4th wireless signal includes upstream physical layer control channel.As one embodiment,
The upstream physical layer control channel is PUCCH.
As one embodiment, the 4th wireless signal includes upstream physical layer data channel.As one embodiment,
The upstream physical layer data channel is PUSCH.
As one embodiment, transmission channel corresponding to the 4th wireless signal is UL-SCH.
As one embodiment, the 4th wireless signal also includes physical layer data.
Specifically, according to an aspect of the present invention, it is characterised in that the 3rd wireless signal indicates target day line end
Mouth group and pre-coding matrix, the pre-coding matrix include T secondary vector, and the secondary vector includes Q element.The T
Individual primary vector and the T secondary vector correspond.The target antenna port set includes Q antenna port, the Q
Beam shaping vector corresponding to individual antenna port is multiplied by the Q element in the secondary vector respectively, is then added again, group
Into the corresponding primary vector.The Q is greater than 1 positive integer.
As one embodiment, any two in the T secondary vector is different.
As one embodiment, any two in the T secondary vector is mutually orthogonal.
The invention discloses a kind of method being used in the base station of multi-antenna transmission, wherein, comprise the following steps：
- step A. sends the first wireless signal；
- step B. receives second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P
Individual subsignal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two
Time-domain resource or frequency domain resource be orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna
Port set includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by phase
Same antenna port group is sent.
As one embodiment, the implicit instruction P of first wireless signal.A son as the present embodiment is real
Example is applied, first wireless signal includes { the first signaling, the first data }, and first signaling includes the tune of first data
Information is spent, the subsignal indicates whether first data are properly decoded.Signaling corresponding to first signaling identifies quilt
For determining the P, the signaling mark is positive integer.As one embodiment, first signaling is DCI (Downlink
Control Information, Downlink Control Information), the signaling of first signaling mark be RA (Random Access, with
Machine accesses)-RNTI (Radio Network Temporary Identifier, the tentative mark of wireless network), the P is more than 1.
As one embodiment, first signaling is DCI, and the signaling of first signaling mark is C (Cell, cell)-RNTI, institute
P is stated equal to 1.
As one embodiment, above-mentioned schedule information includes { shared running time-frequency resource, MCS (Modulation and
Coding Status, modulation coding state), RV (Redundancy Version, redundancy versions), HARQ process numbers
At least one of (Process Number) }.
As one embodiment, the explicit instruction P of first wireless signal.A son as the present embodiment is real
Apply example, an information bit in first wireless signal indicates that the P is 1 or P1, and the P1 is more than 1.As one
Embodiment, the P1 are fixed constants.As one embodiment, the P1 is configurable.
As one embodiment, the time-domain resource in the P subsignal described in any two shared by subsignal is just
(not overlapping i.e. in time domain) handed over.
As one embodiment, the subsignal includes UCI (Uplink Control Information, upload control
Information), the UCI includes { HARQ-ACK/NACK, SR (Scheduling Requests, dispatch request), CQI (Channel
Quality Indicator, channel quality instruction) feedback, RI (Rank Indicator, order instruction) feedbacks, PMI
(Precoding Matrix Indicator, pre-coding matrix instruction), CRI (CSI-RS Resource Indicator,
At least one of CSI-RS indicates) }.
As one embodiment, physical layer channel includes down physical layer control channel corresponding to first wireless signal
(down channel for being simply possible to use in carrying physical layer signaling).As one embodiment, the down physical layer control channel is
PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel)
As one embodiment, physical layer channel corresponding to first wireless signal includes down physical layer data channel
(down channel for carrying physical layer data can be used for).As one embodiment, the down physical layer data channel is
PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).
As one embodiment, transmission channel corresponding to first wireless signal is DL-SCH (Downlink Shared
Channel, DSCH Downlink Shared Channel).
As one embodiment, first wireless signal also includes physical layer data.
As one embodiment, physical layer channel corresponding to the second wireless singal includes upstream physical layer control channel
(up channel for being simply possible to use in carrying physical layer signaling).As one embodiment, the upstream physical layer control channel is
PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel).
As one embodiment, physical layer channel corresponding to the second wireless singal includes upstream physical layer data channel
(up channel for carrying physical layer data can be used for).As one embodiment, the upstream physical layer data channel is
PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel).
As one embodiment, transmission channel corresponding to the second wireless singal is UL-SCH (Uplink Shared
Channel, Uplink Shared Channel).
As one embodiment, the antenna port group includes 1 antenna port.
As one embodiment, day included in two antenna port groups in the P antenna port group at least be present
The quantity of line end mouth is different.
As one embodiment, the quantity of included antenna port is identical in the P antenna port group.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The small dimensional properties for the wireless channel that the signal that first antenna port is sent is undergone can not be by institute
The recipient for stating second wireless singal is used for the small yardstick for inferring the wireless channel that the signal that the second antenna port is sent is undergone
Characteristic.The first antenna port and second antenna port are belonging respectively to two differences in the P antenna port group
Antenna port group, the small dimensional properties include channel impulse response.
As one embodiment, the antenna port is to pass through antenna virtualization (Virtualization) by more antennas
It is formed by stacking, the mapping coefficient composition beam shaping vector of the more antennas to the antenna port.Second wireless communication
Number recipient cannot assume that the P subsignal by identical antenna port group send refer to：In the P antenna port group
Any two antenna port corresponding to beam shaping vector can not be assumed to be it is identical.
In the above-described embodiments, the different antenna ports can send the using the different beam shaping vectors
Two wireless signals, the different beam shaping vectors are respectively directed to different directions.When the UE does not obtain up channel also
CSI when, the base station can indicate the UE in P>Sent in 1 antenna port group with different beam shaping directions
The secondary signal, so as to strengthen the transmission reliability of the second wireless singal.When the UE obtains (part) up channel
CSI after, the base station can indicate the UE in P=1 antenna port groups by a specific beam shaping
Vector sends the second wireless singal, is reducing transmitting redundancy, is ensureing second wireless communication while improving efficiency of transmission
Number transmission reliability.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The recipient of the second wireless singal does not utilize any two in the P antenna port group
Wireless signal transmitted by individual antenna port performs joint channel estimation.
As one embodiment, the beam shaping vector corresponding to the antenna port is by an analog beam excipient
What the product of matrix and a digital beam shaping vector was formed.As a sub- embodiment, the P antenna port component
Do not correspond to P analog beam excipient matrix, the antenna port in the same antenna port group corresponds to same analog beam
Excipient matrix.As a sub- embodiment, analog beam excipient square corresponding to the antenna port in the different antenna port groups
Battle array is different.As a sub- embodiment, the different antennae port in the same antenna port group corresponds to different numbers
Word beam shaping vector.
In the above-described embodiments, analog wave described in identical corresponding to the antenna port in the same antenna port group
Beam excipient matrix is used to form an identical broad beam on the antenna port in the same antenna port group；It is same
Different digital beam excipients vector is used in the same day corresponding to antenna port in the antenna port group
The different narrow beams formed on antenna port in line port set in the broad beam.In this manner, the UE can
Mopped up with flexibly carrying out the wave beam under two kinds of different accuracies.The base station can be by measuring the different antenna port group institutes
The wireless signal of transmission carries out the selection of the broad beam；The base station can also be by measuring the same antenna port group
Wireless signal transmitted by interior different antennae port carries out the selection of the narrow beam in the corresponding broad beam.This
Sample, the base station can flexibly aid in the beam shaping of two kinds of different accuracies of the UE supports.
As one embodiment, the different antennae port in the same antenna port group is with TDM (Timing
Division Multiplexing, are time-multiplexed) mode send the second wireless singal.
As one embodiment, the different antennae port in the same antenna port group is with FDM (Frequency
Division Multiplexing, frequency division multiplexing) mode send the second wireless singal.
As one embodiment, the different antennae port in the same antenna port group is with CDM (Code
Division Multiplexing, code division multiplexing) mode send the second wireless singal.
As one embodiment, the different antennae port in the same antenna port group is come in a manner of sending diversity
Send the second wireless singal.As a sub- embodiment, the transmission diversity is SFBC (Space Frequency
Block Coding, space-frequency block codes).As a sub- embodiment, the transmission diversity is STBC (Space Time Block
Coding, space-time block code).
Specifically, according to an aspect of the present invention, it is characterised in that the step A also comprises the following steps：
- step A0. sends the first high-level signaling, and first high-level signaling indicates P1.
Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
As one embodiment, first high-level signaling is RRC (Radio Resource Control, Radio Resource
Control) signaling.
As one embodiment, first high-level signaling is that cell is specific.
As one embodiment, first high-level signaling is UE specific.
Specifically, according to an aspect of the present invention, it is characterised in that also comprise the following steps：
- step C. sends the 3rd wireless signal；
- step D. receives the 4th wireless signal；
Wherein described 3rd wireless signal be used for determining in { target antenna port set, T primary vector } at least it
One.The target antenna port set is one in the P antenna port group, and the 4th wireless signal is by T antenna end
Mouthful send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T individual the
One vector is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
As one embodiment, the second wireless singal includes P RS port set, the P RS port sets respectively and
The P antenna port group corresponds, in the quantity and corresponding antenna port group of the RS ports in the RS port sets
The quantity of antenna port is identical, the antenna port one in RS ports and the corresponding antenna port group in the RS port sets
One correspondence, the RS ports are sent by corresponding antenna port.As one embodiment, RS sequences corresponding to the RS ports are
Zadoff-Chu sequence.As one embodiment, the RU (Resource Unit, resource units) shared by the RS ports exists
It is discontinuous on frequency domain, the RU takes the duration of an OFDM symbol in time domain, and a son is taken on frequency domain
The bandwidth at carrier wave interval.As one embodiment, the RU is RE (Resource Element, resource particle).As one
Embodiment, the frequency domain interval between adjacent RU shared by the RS ports is identical.As one embodiment, different institutes
The RS sequences stated corresponding to RS ports are different.It is described corresponding to the different RS ports as one embodiment
RS sequences are mutually orthogonal.
As one embodiment, pattern of the RS ports inside a time frequency block is SRS inside a time frequency block
Pattern, the time frequency block takes OFDM duration in time domain, is no more than 20MHz in the bandwidth that frequency domain takes
(megahertz).As one embodiment, the bandwidth that the RS ports take on frequency domain includes multiple time frequency blocks in frequency domain
On bandwidth.
As one embodiment, the reference signal in the P RS port sets is respectively used to determine P channel quality,
The target antenna port set is used for determining target channel quality, and the target channel quality is in the P channel quality
Maximum.
As one embodiment, the reference signal in the P RS port sets is respectively used to determine the P antenna end
CSI corresponding to mouth group, the CSI are used for determining T primary vector.
As one embodiment, the 3rd wireless signal transmits on down physical layer control channel.As a reality
Example is applied, the down physical layer control channel is PDCCH
As one embodiment, the 3rd wireless signal transmits on down physical layer data channel.As a reality
Example is applied, the down physical layer data channel is PDSCH.
As one embodiment, transmission channel corresponding to the 3rd wireless signal is DL-SCH.
As one embodiment, the 3rd wireless signal also includes physical layer data.
As one embodiment, the 4th wireless signal includes upstream physical layer control channel.As one embodiment,
The upstream physical layer control channel is PUCCH.
As one embodiment, the 4th wireless signal includes upstream physical layer data channel.As one embodiment,
The upstream physical layer data channel is PUSCH.
As one embodiment, transmission channel corresponding to the 4th wireless signal is UL-SCH.
As one embodiment, the 4th wireless signal also includes physical layer data.
Specifically, according to an aspect of the present invention, it is characterised in that the 3rd wireless signal indicates target day line end
Mouth group and pre-coding matrix, the pre-coding matrix include T secondary vector, and the secondary vector includes Q element.The T
Individual primary vector and the T secondary vector correspond.The target antenna port set includes Q antenna port, the Q
Beam shaping vector corresponding to individual antenna port is multiplied by with the Q element in the secondary vector respectively, is then added again,
The primary vector corresponding to composition.The Q is greater than 1 positive integer.
As one embodiment, any two in the T secondary vector is different.
As one embodiment, any two in the T secondary vector is mutually orthogonal.
The invention discloses a kind of user equipment for being used for multi-antenna transmission, wherein, including following module：
First receiving module：For receiving the first wireless signal；
First sending module：For sending second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P
Individual subsignal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two
Time-domain resource or frequency domain resource be orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna
Port set includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by phase
Same antenna port group is sent.
Wherein described first receiving module also be used to receive the first high-level signaling, and first high-level signaling indicates P1.
Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
As one embodiment, the implicit instruction P of first wireless signal.A son as the present embodiment is real
Example is applied, first wireless signal includes { the first signaling, the first data }, and first signaling includes the tune of first data
Information is spent, the subsignal indicates whether first data are properly decoded.Signaling corresponding to first signaling identifies quilt
For determining the P, the signaling mark is positive integer.As one embodiment, first signaling is DCI (Downlink
Control Information, Downlink Control Information), the signaling of first signaling mark be RA (Random Access, with
Machine accesses)-RNTI (Radio Network Temporary Identifier, the tentative mark of wireless network), the P is more than 1.
As one embodiment, first signaling is DCI, and the signaling of first signaling mark is C (Cell, cell)-RNTI, institute
P is stated equal to 1.
As one embodiment, the explicit instruction P of first wireless signal.A son as the present embodiment is real
Apply example, an information bit in first wireless signal indicates that the P is 1 or P1, and the P1 is more than 1.As one
Embodiment, the P1 are fixed constants.As one embodiment, the P1 is configurable.
As one embodiment, the time-domain resource in the P subsignal described in any two shared by subsignal is just
(not overlapping i.e. in time domain) handed over.
As one embodiment, the subsignal includes UCI (Uplink Control Information, upload control
Information), the UCI includes { HARQ-ACK/NACK, SR (Scheduling Requests, dispatch request), CQI (Channel
Quality Indicator, channel quality instruction) feedback, RI (Rank Indicator, order instruction) feedbacks, PMI
(Precoding Matrix Indicator, pre-coding matrix instruction), CRI (CSI-RS Resource Indicator,
At least one of CSI-RS indicates) }.
As one embodiment, the antenna port group includes 1 antenna port.
As one embodiment, day included in two antenna port groups in the P antenna port group at least be present
The quantity of line end mouth is different.
As one embodiment, the quantity of included antenna port is identical in the P antenna port group.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The small dimensional properties for the wireless channel that the signal that first antenna port is sent is undergone can not be by institute
The recipient for stating second wireless singal is used for the small yardstick for inferring the wireless channel that the signal that the second antenna port is sent is undergone
Characteristic.The first antenna port and second antenna port are belonging respectively to two differences in the P antenna port group
Antenna port group, the small dimensional properties include channel impulse response.
As one embodiment, the antenna port is to pass through antenna virtualization (Virtualization) by more antennas
It is formed by stacking, the mapping coefficient composition beam shaping vector of the more antennas to the antenna port.Second wireless communication
Number recipient cannot assume that the P subsignal by identical antenna port group send refer to：In the P antenna port group
Any two antenna port corresponding to beam shaping vector can not be assumed to be it is identical.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The recipient of the second wireless singal does not utilize any two in the P antenna port group
Wireless signal transmitted by individual antenna port performs joint channel estimation.
Specifically, above-mentioned user equipment, it is characterised in that also include：
Second receiving module：For receiving the 3rd wireless signal；
Second sending module：For sending the 4th wireless signal；
Wherein described 3rd wireless signal be used for determining in { target antenna port set, T primary vector } at least it
One.The target antenna port set is one in the P antenna port group, and the 4th wireless signal is by T antenna end
Mouthful send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T individual the
One vector is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
As one embodiment, the second wireless singal includes P RS port set, the P RS port sets respectively and
The P antenna port group corresponds, in the quantity and corresponding antenna port group of the RS ports in the RS port sets
The quantity of antenna port is identical, the antenna port one in RS ports and the corresponding antenna port group in the RS port sets
One correspondence, the RS ports are sent by corresponding antenna port.Second sending module also be used to send the RS ports
RS sequences corresponding to upper.As one embodiment, the RS sequences are Zadoff-Chu sequences.It is described as one embodiment
RU (Resource Unit, resource units) shared by RS ports is discontinuous on frequency domain, and the RU takes in time domain
The duration of one OFDM symbol, the bandwidth of a subcarrier spacing is taken on frequency domain.As one embodiment, the RU
It is RE (Resource Element, resource particle).As one embodiment, between the adjacent RU shared by the RS ports
Frequency domain interval be identical.As one embodiment, the RS sequences corresponding to the different RS ports are different.Make
For one embodiment, the RS sequences corresponding to the different RS ports are mutually orthogonal.
The invention discloses a kind of base station equipment for being used for multi-antenna transmission, wherein, including following module：
3rd sending module：For sending the first wireless signal；
3rd receiving module：For receiving second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P
Individual subsignal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two
Time-domain resource or frequency domain resource be orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna
Port set includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by phase
Same antenna port group is sent.
Wherein described 3rd sending module also be used to send the first high-level signaling, and first high-level signaling indicates P1.
Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
As one embodiment, the implicit instruction P of first wireless signal.A son as the present embodiment is real
Example is applied, first wireless signal includes { the first signaling, the first data }, and first signaling includes the tune of first data
Information is spent, the subsignal indicates whether first data are properly decoded.Signaling corresponding to first signaling identifies quilt
For determining the P, the signaling mark is positive integer.As one embodiment, first signaling is DCI (Downlink
Control Information, Downlink Control Information), the signaling of first signaling mark be RA (Random Access, with
Machine accesses)-RNTI (Radio Network Temporary Identifier, the tentative mark of wireless network), the P is more than 1.
As one embodiment, first signaling is DCI, and the signaling of first signaling mark is C (Cell, cell)-RNTI, institute
P is stated equal to 1.
As one embodiment, the explicit instruction P of first wireless signal.A son as the present embodiment is real
Apply example, an information bit in first wireless signal indicates that the P is 1 or P1, and the P1 is more than 1.As one
Embodiment, the P1 are fixed constants.As one embodiment, the P1 is configurable.
As one embodiment, the time-domain resource in the P subsignal described in any two shared by subsignal is just
(not overlapping i.e. in time domain) handed over.
As one embodiment, the subsignal includes UCI (Uplink Control Information, upload control
Information), the UCI includes { HARQ-ACK/NACK, SR (Scheduling Requests, dispatch request), CQI (Channel
Quality Indicator, channel quality instruction) feedback, RI (Rank Indicator, order instruction) feedbacks, PMI
(Precoding Matrix Indicator, pre-coding matrix instruction), CRI (CSI-RS Resource Indicator,
At least one of CSI-RS indicates) }.
As one embodiment, the antenna port group includes 1 antenna port.
As one embodiment, day included in two antenna port groups in the P antenna port group at least be present
The quantity of line end mouth is different.
As one embodiment, the quantity of included antenna port is identical in the P antenna port group.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The small dimensional properties for the wireless channel that the signal that first antenna port is sent is undergone can not be by institute
The recipient for stating second wireless singal is used for the small yardstick for inferring the wireless channel that the signal that the second antenna port is sent is undergone
Characteristic.The first antenna port and second antenna port are belonging respectively to two differences in the P antenna port group
Antenna port group, the small dimensional properties include channel impulse response.
As one embodiment, the antenna port is to pass through antenna virtualization (Virtualization) by more antennas
It is formed by stacking, the mapping coefficient composition beam shaping vector of the more antennas to the antenna port.Second wireless communication
Number recipient cannot assume that the P subsignal by identical antenna port group send refer to：In the P antenna port group
Any two antenna port corresponding to beam shaping vector can not be assumed to be it is identical.
As one embodiment, the recipient of the second wireless singal cannot assume that the P subsignal by identical
Antenna port group, which is sent, to be referred to：The recipient of the second wireless singal does not utilize any two in the P antenna port group
Wireless signal transmitted by individual antenna port performs joint channel estimation.
Specifically, above-mentioned base station equipment, it is characterised in that also include：
4th sending module：For sending the 3rd wireless signal；
4th receiving module：For receiving the 4th wireless signal；
Wherein described 3rd wireless signal be used for determining in { target antenna port set, T primary vector } at least it
One.The target antenna port set is one in the P antenna port group, and the 4th wireless signal is by T antenna end
Mouthful send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T individual the
One vector is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
As one embodiment, the second wireless singal includes P RS port set, the P RS port sets respectively and
The P antenna port group corresponds, in the quantity and corresponding antenna port group of the RS ports in the RS port sets
The quantity of antenna port is identical, the antenna port one in RS ports and the corresponding antenna port group in the RS port sets
One correspondence, the RS ports are sent by corresponding antenna port.3rd receiving module also be used to receive the RS ports
RS sequences corresponding to upper.As one embodiment, the RS sequences are Zadoff-Chu sequences.It is described as one embodiment
RU (Resource Unit, resource units) shared by RS ports is discontinuous on frequency domain, and the RU takes in time domain
The duration of one OFDM symbol, the bandwidth of a subcarrier spacing is taken on frequency domain.As one embodiment, the RU
It is RE (Resource Element, resource particle).As one embodiment, between the adjacent RU shared by the RS ports
Frequency domain interval be identical.As one embodiment, the RS sequences corresponding to the different RS ports are different.Make
For one embodiment, the RS sequences corresponding to the different RS ports are mutually orthogonal.
Compared with traditional scheme, the present invention possesses following advantage：
For-according to the instruction of base station, UE flexibly sends upward signal by the way of beam shaping or wave beam are mopped up,
Remain the robustness of uplink；
- supports the beam shaping of different accuracy and wave beam to mop up simultaneously, meets the needs of different business.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent：
Fig. 1 shows the flow chart according to an embodiment of the invention being wirelessly transferred；
Fig. 2 shows the schematic diagram of antenna structure according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of the resource impact of antenna port group according to an embodiment of the invention；
Fig. 4 shows the structured flowchart of the processing unit according to an embodiment of the invention being used in UE；
Fig. 5 shows the structured flowchart of the processing unit according to an embodiment of the invention being used in base station；
Embodiment
Technical scheme is described in further detail below in conjunction with accompanying drawing, it is necessary to explanation is, do not rushed
In the case of prominent, the feature in embodiments herein and embodiment can be arbitrarily mutually combined.
Embodiment 1
Embodiment 1 illustrates the flow chart being wirelessly transferred, as shown in Figure 1.In accompanying drawing 1, base station N1 is UE U2 service
Cell maintains base station.In accompanying drawing 1, the step in square frame F1 and square frame F2 is optional respectively.
For N1, the first high-level signaling is sent in step S101, first high-level signaling indicates P1, and the P1 is big
In 1 positive integer；The first wireless signal is sent in step s 11；Second wireless singal is received in step s 12；In step
The 3rd wireless signal is sent in S102；The 4th wireless signal is received in step s 103.
For U2, the first high-level signaling is received in step s 201, and first high-level signaling indicates P1；In step S21
The first wireless signal of middle reception；Second wireless singal is sent in step S22；The 3rd wireless signal is received in step S202；
The 4th wireless signal is sent in step S203.
In embodiment 1, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal
Including P subsignal, the P subsignal carries identical information.The subsignal includes UCI, and the UCI includes { HARQ-
At least one of ACK/NACK, SR, CQI feedback, RI feedbacks, PMI feedbacks, CRI }.Any two institute in the P subsignal
It is orthogonal to state the time-domain resource shared by subsignal or frequency domain resource.The P subsignal is respectively by P antenna port group
Send, the antenna port group includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that described
P subsignal is sent by identical antenna port group.
As the sub- embodiment 1 of embodiment 1, the implicit instruction P of first wireless signal.First wireless communication
Number include { the first signaling, the first data }, first signaling includes the schedule information of first data, and the subsignal refers to
Show whether first data are properly decoded.Signaling mark is used for determining the P, the letter corresponding to first signaling
It is positive integer to make mark.
As a sub- embodiment of the sub- embodiment 1 of embodiment 1, first signaling is DCI, first signaling
Signaling mark is RA-RNTI, and the P is equal to the P1, wherein the P1 is fixed constant or the P1 is configurable.
As a sub- embodiment of the sub- embodiment 1 of embodiment 1, first signaling is DCI, first signaling
Signaling mark is C-RNTI, and the P is equal to 1.
As the sub- embodiment 2 of embodiment 1, the explicit instruction P of first wireless signal.First wireless communication
An information bit in number indicates that the P is 1 or P1, and the P1 is fixed constant or the P1 is configurable.
As the sub- embodiment 3 of embodiment 1, the antenna port is to pass through antenna virtualization by more antennas
(Virtualization) be formed by stacking, the mapping coefficients of the more antennas to the antenna port form beam shaping to
Amount.The beam shaping vector corresponding to any two antenna port in the P antenna port group can not be assumed to be it is identical
's.
As a sub- embodiment of the sub- embodiment 3 of embodiment 1, the P antenna port group corresponds to P simulation respectively
Beam shaping matrix, the beam shaping vector corresponding to the antenna port are by the analog beam excipient matrix and one
What the product of digital beam excipient vector was formed, i.e. wq,p=Cpbq,p, wherein 1≤p≤P, wq,pRepresent p-th of antenna port
The beam shaping vector, C corresponding to q-th of antenna port in grouppRepresent the analog wave corresponding to p-th of antenna port group
Beam excipient matrix, bq,pRepresent the digital beam excipient vector corresponding to q-th of antenna port in p-th of antenna port group.
As a sub- embodiment of the sub- embodiment 3 of embodiment 1, the corresponding mould in the different antenna port groups
It is different to intend beam shaping matrix, i.e., to 1≤p1≤P, 1≤p2≤P, p1 ≠ p2, there is Cp1≠Cp2。
As a sub- embodiment of the sub- embodiment 3 of embodiment 1, the antenna port in the same antenna port group
Corresponding different digital beam excipient vector, i.e. b1,p≠b2,p≠…≠bQp,p。
As the sub- embodiment 4 of embodiment 1, the different antennae port in the same antenna port group is with TDM side
Formula sends the second wireless singal.
As the sub- embodiment 5 of embodiment 1, the different antennae port in the same antenna port group is with FDM side
Formula sends the second wireless singal.
As the sub- embodiment 6 of embodiment 1, the different antennae port in the same antenna port group is with CDM side
Formula sends the second wireless singal.
As the sub- embodiment 6 of embodiment 1, different antennae port in the same antenna port group is to send diversity
Mode send the second wireless singal.As a sub- embodiment, the transmission diversity is SFBC.It is real as a son
Example is applied, the transmission diversity is STBC.
As the sub- embodiment 7 of embodiment 1, the second wireless singal includes P RS port set, the P RS ports
Group corresponds with the P antenna port group respectively, the quantity and corresponding antenna end of the RS ports in the RS port sets
The quantity of antenna port in mouth group is identical, the day in RS ports and the corresponding antenna port group in the RS port sets
Line end mouth is corresponded, and the RS ports are sent by corresponding antenna port.
As a sub- embodiment of the sub- embodiment 7 of embodiment 1, RS sequences corresponding to the RS ports are Zadoff-
Chu sequences.
As a sub- embodiment of the sub- embodiment 7 of embodiment 1, the RU shared by the RS ports is not on frequency domain
Continuously, the RU takes the duration of an OFDM symbol in time domain, one subcarrier spacing of occupancy on frequency domain
Bandwidth, the RU are RE (Resource Element, resource particles).
As a sub- embodiment of the sub- embodiment 7 of embodiment 1, between the adjacent RU shared by the RS ports
Frequency domain interval is identical.
As a sub- embodiment of the sub- embodiment 7 of embodiment 1, the RS sequences corresponding to the different RS ports
It is different.
As a sub- embodiment of the sub- embodiment 7 of embodiment 1, the RS sequences corresponding to the different RS ports
It is mutually orthogonal.
As a sub- embodiment of the sub- embodiment 7 of embodiment 1, pattern of the RS ports inside a time frequency block
It is patterns of the SRS inside a time frequency block, the time frequency block takes OFDM duration in time domain, accounted in frequency domain
Bandwidth is no more than 20MHz (megahertz), and the bandwidth that the RS ports take on frequency domain exists including multiple time frequency blocks
Bandwidth on frequency domain.
As the sub- embodiment 8 of embodiment 1, the 3rd wireless signal is used for determining target antenna port set, described
Target antenna port set is one in the P antenna port group.The target antenna port set includes Q antenna end
Mouthful, the Q antenna port corresponds to Q beam shaping vector { w respectively1,w2,…,wQ}.4th wireless signal is by T day
Line end mouth is sent, and wherein T is less than the positive integer equal to Q.The Q beam shaping vector { w1,w2,…,wQIn T ripple
Beam excipient vector is used for the antenna virtualization of the T antenna port.As a sub- embodiment, the T is equal to the Q.
As a sub- embodiment of the sub- embodiment 8 of embodiment 1, the second wireless singal includes P RS port set,
The P RS port sets correspond with the P antenna port group respectively.Reference signal point in the P RS port sets
P channel quality is not used for determining, and the target antenna port set is used for determining target channel quality, the destination channel
Quality is the maximum in the P channel quality
As the sub- embodiment 9 of embodiment 1, the 3rd wireless signal is used for determining T primary vector.Described 4th
Wireless signal is sent by T antenna port, wherein the T primary vector is respectively used to the antenna of the T antenna port
Virtualization.The T is positive integer.
As a sub- embodiment of the sub- embodiment 9 of embodiment 1, the second wireless singal includes P RS port set,
The P RS port sets correspond with the P antenna port group respectively, RS ports in the RS port sets and described right
Antenna port in the antenna port group answered is corresponded, and the RS ports are sent by corresponding antenna port.Any two institute
It is mutually orthogonal to state corresponding beam shaping vector on RS ports.Reference signal in the P RS port sets is respectively used to really
CSI corresponding to the fixed P antenna port group, the CSI are used for determining T primary vector.
As the sub- embodiment 10 of embodiment 1, the 3rd wireless signal instruction target antenna port set and precoding square
Battle array, the pre-coding matrix are the matrixes of Q × T dimension, are expressed as A.The T primary vector and the pre-coding matrix A
T row correspond.The target antenna port set includes Q antenna port, and the Q antenna port corresponds to Q respectively
Beam shaping vector { w1,w2,…,wQ}.The Q is greater than 1 positive integer.The Q beam shaping vector { w1,w2,…,wQ}
The Q element being multiplied by respectively in the secondary vector, is then added again, the primary vector corresponding to composition.For 1≤
T≤T, t-th of primary vector, is expressed as v t , it is calculated by following formula:
Wherein aq,tIt is q-th of element of the t row of the pre-coding matrix A.
Embodiment 2
Embodiment 2 illustrates the schematic diagram of antenna structure, as shown in Figure 2.In accompanying drawing 2, communication node is equipped with G day
Line group, the G antenna sets correspond to G RF (Radio Frequency, radio frequency) Chain (chain) respectively.Wrapped in one antenna sets
V antenna is included, the G is positive integer, and the V is positive integer.For 1≤g≤G, the antenna in antenna sets #g is included in accompanying drawing 2
{ Ant g_1, Ant g_2 ..., Ant g_V }, the antenna in antenna sets #g passes through analog beam excipient vector cgSimulated
Beam shaping, wherein cgIt is the vector that a V × 1 is tieed up.X in accompanying drawing 21,…xQIt is useful signal to be sent, it is described useful
Signal is sent after digital beam excipient and analog beam excipient.The BBP be used to be directed to the x1,
...xQDigital beam excipient is performed, the analog beam excipient vector is used to perform mould for the output of the BBP
Intend beam shaping.The digital beam excipient matrix is represented with B, wherein B is G × Q dimension matrix.Corresponding to antenna sets #g
Q (1≤q≤Q) individual beam shaping vector is the q row b of the digital beam excipient matrix BqG-th of element and antenna sets #g
Corresponding analog beam excipient vector cgProduct, i.e. bq,gcg, wherein bq,gIt is that the q of the digital beam excipient matrix B is arranged
G-th of element.
As the sub- embodiment 1 of embodiment 2, the G antenna sets are divided into the P group not overlapped each other, and the P is individual
Group is respectively mapped in P antenna port group.The quantity G for the antenna sets that p-th of antenna port group includespRepresent.
The label for the antenna sets that p-th of antenna port group includes is usedRepresent.The pth (1≤p≤P) is individual
The individual digital beam shaping vectors of q (1≤q≤Q) are by the b corresponding to antenna port groupqElementComposition, is expressed asWherein bq,pIt is p-th of antenna
Q-th of digital beam excipient vector, symbol " T " represent transposition corresponding to port set.Q in p-th of antenna port grouppIt is individual
It is the Q digital beam shaping vector { b that antenna port, which corresponds to digital beam excipient vector,1,p,b2,p…bQ,pIn QpIt is individual,
Wherein QpIt is less than the positive integer equal to Q.
As the sub- embodiment of the sub- embodiment 1 of embodiment 2, different antennae group that the same antenna port group includes
It is vectorial using identical analog beam excipient, i.e.,The different antenna port groups
Comprising antenna sets using different analog beam excipient vectors, i.e., for 1≤p1≤P, 1≤p2≤P, p1 ≠ p2, there is cp1≠
cp2.Q (1≤q≤Q in p-th of antenna port groupp) complete beam shaping vector w on individual antenna portq,pBy institute
State analog beam excipient Matrix C corresponding to p-th of antenna port grouppWith q-th of digital beam excipient vector bq,pProduct
Form, i.e. wq,p=Cpbq,p, wherein the analog beam excipient Matrix CpIt is a GpV×GpThe matrix of dimension, the CpIt is by Gp
The individual cpDiagonally it is arranged to make up, i.e.,
As a sub- embodiment of the sub- embodiment 1 of embodiment 2, the antenna sets in the different antenna port groups make
With different analog beam excipient vectors.
As a sub- embodiment of the sub- embodiment 1 of embodiment 2, the antenna sets in the different antenna port groups make
Analog beam excipient vector is mutually orthogonal.
As a sub- embodiment of the sub- embodiment 1 of embodiment 2, the different antennae end in an antenna port group
The corresponding different digital beam excipient vector of mouth.
As a sub- embodiment of the sub- embodiment 1 of embodiment 2, the different antennae end in an antenna port group
Digital beam excipient vector corresponding to mouthful is mutually orthogonal.
As a sub- embodiment of the sub- embodiment 1 of embodiment 2, the antenna sets that are included in all antenna port groups
Number is identical.
As a sub- embodiment of the sub- embodiment 1 of embodiment 2, at least two include in the antenna port group
Antenna port number is different.
Embodiment 3
Embodiment 3 illustrates the schematic diagram of the resource impact of the RS port sets, as shown in Figure 3.In accompanying drawing 3, one
The RS port sets occupy I continuous OFDM symbols in time domain, in the last part for occupying system bandwidth of frequency domain.No
Same antenna port group occupies I different OFDM symbols in time domain.The P RS port sets and the P antenna port
Group corresponds, the quantity of RS ports and the quantity phase of the antenna port in corresponding antenna port group in the RS port sets
Together, the antenna port in the RS ports in the RS port sets and the corresponding antenna port group corresponds, the RS ends
Mouth is sent by corresponding antenna port.
As the sub- embodiment 1 of embodiment 3, the different RS ports of a RS port set occupy different on frequency domain
Subcarrier.
As a sub- embodiment of the sub- embodiment 1 of embodiment 3, the different RS ports of a RS port set
Occupied subcarrier is discontinuous on frequency domain.
As a sub- embodiment of the sub- embodiment 1 of embodiment 3, the different RS ports of a RS port set
Frequency domain interval on frequency domain between occupied adjacent sub-carrier is identical.
As a sub- embodiment of the sub- embodiment 1 of embodiment 3, the different RS ports of a RS port set
Occur at equal intervals on frequency domain.
As a sub- embodiment of the sub- embodiment 1 of embodiment 3, a RS port is broadband (i.e. system band
Width is divided into positive integer frequency domain unit, and a RS port set occurs in all frequency domain units in system bandwidth, described
Bandwidth corresponding to frequency domain unit is equal to the difference of the frequency of the adjacent subcarrier occurred twice in a RS port).
As the sub- embodiment 2 of embodiment 3, the different RS ports of a RS port set occupy identical on frequency domain
Subcarrier, different RS sequences corresponding to the different RS ports.
As a sub- embodiment of the sub- embodiment 2 of embodiment 3, the RS sequences are Zadoff-Chu sequences.
As a sub- embodiment of the sub- embodiment 2 of embodiment 3, the different RS ports of a RS port set
Corresponding RS sequences are mutually orthogonal.
As the sub- embodiment 3 of embodiment 3, the I is equal to 1.
As the sub- embodiment 4 of embodiment 3, the I is equal to 2.
Embodiment 4
Embodiment 4 is the structured flowchart for the processing unit in UE, as shown in Figure 4.In accompanying drawing 4, UE devices 200 are led
To be made up of the first receiving module 201, the first sending module 202, the second receiving module 203 and the second sending module 204.Its
In, the sending module 204 of the second receiving module 203 and second is optional.
First receiving module 201 is used to receive the first wireless signal；First sending module 202 is used to send the second wireless communication
Number；Second receiving module 203 is used to receive the 3rd wireless signal；Second sending module 204 is used to send the 4th wireless signal.
In embodiment 4, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal
Including P subsignal, the P subsignal carries identical information.Subsignal institute described in any two in the P subsignal
The time-domain resource of occupancy is orthogonal.The P subsignal is sent by P antenna port group respectively, in the antenna port group
Including 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by identical antenna
Port set is sent.
First receiving module described in embodiment 4 also be used to receive the first high-level signaling, and first high-level signaling refers to
Show P1.Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
3rd wireless signal described in embodiment 4 is used for determining in { target antenna port set, T primary vector } extremely
It is one of few.The target antenna port set is one in the P antenna port group, and the 4th wireless signal is by T day
Line end mouth is sent, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T
Individual primary vector is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
Embodiment 5
Embodiment 5 is the structured flowchart for the processing unit in base station, as shown in Figure 5.In accompanying drawing 5, base station apparatus
300 mainly by 304 groups of the 3rd sending module 301, the 3rd receiving module 302, the 4th sending module 303 and the 4th receiving module
Into.Wherein, the 4th sending module 303 and the 4th receiving module 304 are optional.
3rd sending module 301 is used to send the first wireless signal；3rd receiving module 302 is used to receive the second wireless communication
Number；4th sending module 303 is used to send the 3rd wireless signal；4th receiving module 304 is used to receive the 4th wireless signal.
In embodiment 5, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal
Including P subsignal, the P subsignal carries identical information.Subsignal institute described in any two in the P subsignal
The time-domain resource of occupancy is orthogonal.The P subsignal is sent by P antenna port group respectively, in the antenna port group
Including 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by identical antenna
Port set is sent.
3rd sending module described in embodiment 5 also be used to send the first high-level signaling, and first high-level signaling refers to
Show P1.Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
3rd wireless signal described in embodiment 5 is used for determining in { target antenna port set, T primary vector } extremely
It is one of few.The target antenna port set is one in the P antenna port group, and the 4th wireless signal is by T day
Line end mouth is sent, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T
Individual primary vector is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
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 made to complete, described program can be stored in computer-readable recording medium, such as read-only storage, 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
Answer, each modular unit in above-described embodiment, example, in hardware can be used to realize, can also be by the form of software function module
Realize, the application is not limited to the combination of the software and hardware of any particular form.UE in the present invention includes but is not limited to mobile phone,
The Wireless Telecom Equipments such as tablet personal computer, notebook, card of surfing Internet, NB-IOT terminals, eMTC terminals.Base station in the present invention is
System equipment includes but is not limited to the Wireless Telecom Equipments such as macrocell base stations, microcell base station, Home eNodeB, relay base station.
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 substitution, improve etc., it should be included in the protection of the present invention
Within the scope of.
Claims (12)
1. a kind of method being used in the UE of multi-antenna transmission, wherein, comprise the following steps：
- step A. receives the first wireless signal；
- step B. sends second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P son
Signal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two when
Domain resource or frequency domain resource are orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna port
Group includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by identical
Antenna port group is sent.
2. according to the method for claim 1, it is characterised in that the step A also comprises the following steps：
- step A0. receives the first high-level signaling, and first high-level signaling indicates P1.
Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
3. according to claim 1, the method described in 2, it is characterised in that also comprise the following steps：
- step C. receives the 3rd wireless signal；
- step D. sends the 4th wireless signal；
Wherein described 3rd wireless signal is used for determining at least one of { target antenna port set, T primary vector }.Institute
It is one in the P antenna port group to state target antenna port set, and the 4th wireless signal is sent out by T antenna port
Send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T first to
Amount is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
4. according to the method for claim 3, it is characterised in that the 3rd wireless signal instruction target antenna port set and
Pre-coding matrix, the pre-coding matrix include T secondary vector, and the secondary vector includes Q element.The T first
T secondary vector corresponds described in vector sum.The target antenna port set includes Q antenna port, the Q antenna
Beam shaping vector corresponding to port is multiplied by the Q element in the secondary vector respectively, is then added again, and composition is corresponding
The primary vector.The Q is greater than 1 positive integer.
5. a kind of method being used in the base station of multi-antenna transmission, wherein, comprise the following steps：
- step A. sends the first wireless signal；
- step B. receives second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P son
Signal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two when
Domain resource or frequency domain resource are orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna port
Group includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by identical
Antenna port group is sent.
6. according to the method for claim 5, it is characterised in that the step A also comprises the following steps：
- step A0. sends the first high-level signaling, and first high-level signaling indicates P1.
Wherein, the P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
7. according to claim 5, the method described in 6, it is characterised in that also comprise the following steps：
- step C. sends the 3rd wireless signal；
- step D. receives the 4th wireless signal；
Wherein described 3rd wireless signal is used for determining at least one of { target antenna port set, T primary vector }.Institute
It is one in the P antenna port group to state target antenna port set, and the 4th wireless signal is sent out by T antenna port
Send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T first to
Amount is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
8. according to the method for claim 7, it is characterised in that the 3rd wireless signal instruction target antenna port set and
Pre-coding matrix, the pre-coding matrix include T secondary vector, and the secondary vector includes Q element.The T first
T secondary vector corresponds described in vector sum.The target antenna port set includes Q antenna port, the Q antenna
Beam shaping vector corresponding to port is multiplied by the Q element in the secondary vector respectively, is then added again, and composition is corresponding
The primary vector.The Q is greater than 1 positive integer.
9. a kind of user equipment for being used for multi-antenna transmission, wherein, including following module：
First receiving module：For receiving the first wireless signal；
First sending module：For sending second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P son
Signal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two when
Domain resource or frequency domain resource are orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna port
Group includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by identical
Antenna port group is sent.
Wherein described first receiving module also be used to receive the first high-level signaling, and first high-level signaling indicates P1.Wherein,
The P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
10. user equipment according to claim 9, it is characterised in that also include：
Second receiving module：For receiving the 3rd wireless signal；
Second sending module：For sending the 4th wireless signal；
Wherein described 3rd wireless signal is used for determining at least one of { target antenna port set, T primary vector }.Institute
It is one in the P antenna port group to state target antenna port set, and the 4th wireless signal is sent out by T antenna port
Send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T first to
Amount is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
11. a kind of base station equipment for being used for multi-antenna transmission, wherein, including following module：
3rd sending module：For sending the first wireless signal；
3rd receiving module：For receiving second wireless singal；
Wherein, first wireless signal is used for determining that P, the P are positive integers.The second wireless singal includes P son
Signal, the P subsignal carry identical information.In the P subsignal shared by subsignal described in any two when
Domain resource or frequency domain resource are orthogonal.The P subsignal is sent by P antenna port group respectively, the antenna port
Group includes 1 or multiple antenna ports.The recipient of second wireless singal cannot assume that the P subsignal by identical
Antenna port group is sent.
Wherein described 3rd sending module also be used to send the first high-level signaling, and first high-level signaling indicates P1.Wherein,
The P is 1, or the P is the P1.The P1 is greater than 1 positive integer.
12. base station equipment according to claim 11, it is characterised in that also include：
4th sending module：For sending the 3rd wireless signal；
4th receiving module：For receiving the 4th wireless signal；
Wherein described 3rd wireless signal is used for determining at least one of { target antenna port set, T primary vector }.Institute
It is one in the P antenna port group to state target antenna port set, and the 4th wireless signal is sent out by T antenna port
Send, wherein, the target antenna port set is used for the antenna virtualization of the T antenna port, or the T first to
Amount is respectively used to the antenna virtualization of the T antenna port.The T is positive integer.
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| CN107547118B (en) | 2020-07-31 |
| CN111769854A (en) | 2020-10-13 |
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