CN109412665A - The instruction of channel status and acquisition methods, sending device, receiving device, medium - Google Patents
The instruction of channel status and acquisition methods, sending device, receiving device, medium Download PDFInfo
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- CN109412665A CN109412665A CN201810748018.8A CN201810748018A CN109412665A CN 109412665 A CN109412665 A CN 109412665A CN 201810748018 A CN201810748018 A CN 201810748018A CN 109412665 A CN109412665 A CN 109412665A
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- Prior art keywords
- data
- transmitting antenna
- opposite end
- sent
- mark
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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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
- H04B7/06—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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
Abstract
A kind of instruction of channel status and acquisition methods, sending device, receiving device, medium, the transmitting antenna that the indicating means of the channel status comprises determining that data to be sent and its uses；Using identified transmitting antenna, the mark of the data to be sent and identified transmitting antenna is sent to opposite end, so that mark of the opposite end based on the data to be sent and the transmitting antenna that receive, calculates and obtain channel state information.Using above scheme, opposite end can be made with lower overhead, obtain channel state information.
Description
Technical field
The present embodiments relate to the instructions of the communications field more particularly to a kind of channel status and acquisition methods, transmission to set
Standby, receiving device, medium.
Background technique
In WLAN (Wireless Local Area Network, WLAN) system, wireless site equipment
(Station, STA) is communicated by access point apparatus (Access Point, AP) with other equipment.In order to improve WLAN letter
The efficiency in road, wlan system support Beam synthesis (Beamforming) technology.The principle of beam synthesizing technology are as follows: transmitting terminal
(Beamformer) channel state information (Channel State Information) is obtained first, then according to channel status
Use of information beam synthesizing technology sends data to receiving end (Beamformee).
In existing implementation, Beamformer can obtain channel state information by two ways: 1, explicit
Acquisition methods, Beamformee are calculated and are obtained by channel estimation scheduling algorithm channel state information, then believe channel status
Breath feeds back to Beamformer；2, implicit acquisition methods, the reference that Beamformer is sent based on Beamformee
(Sounding) data packet calculates and obtains channel state information.
Existing implementation needs receiving end feeding back channel state information for explicit acquisition methods, occupies WLAN letter
Road resource, overhead are larger；For implicit acquisition methods, receiving end is needed to feed back Sounding data packet, it is also desirable to occupy
WLAN channel resource, overhead are big.
Summary of the invention
The technical issues of embodiment of the present invention solves is Beamformer such as how lower overhead, obtains channel shape
State information.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of indicating means of channel status, comprising: determine to
The data of transmission and its transmitting antenna used；Using identified transmitting antenna, by the data to be sent and determine
The mark of transmitting antenna be sent to opposite end so that the opposite end is based on the data received and the mark of the transmitting antenna
Know, calculates and obtain channel state information.
Optionally, the number of the transmitting antenna is one or more.
Optionally, the mark of the transmitting antenna includes: invalidated identification；The invalidated identification is used to indicate described to end group
In the data acquisition received channel state information be invalid information.
Optionally, the mark of identified transmitting antenna is sent to by opposite end by following at least one data packet: physics
The signaling domain of layer data packet, the business domains of physical layer data packet, the control domain of MAC layer content-data packet, MAC layer data packet packet
Head.
Optionally, the indicating means of the channel status further include: receive the instruction information that opposite end is sent；Based on the finger
Show information, determines and send the transmitting antenna that the data to be sent use.
Optionally, the data to be sent include Sounding data, so that the opposite end is based on Sounding data,
It calculates and obtains channel state information.
The embodiment of the present invention provides a kind of acquisition methods of channel status, comprising: receives the data and its make that opposite end is sent
The mark of transmitting antenna；Based on the mark of the data and its transmitting antenna used that receive, calculates and obtain letter
Channel state information.
Optionally, the number of the transmitting antenna is one or more.
Optionally, the mark for receiving the transmitting antenna that the data that opposite end is sent use includes: by following at least one number
Obtain the mark of the transmitting antenna according to packet: the signaling domain of physical layer data packet, the business domains of physical layer data packet, in MAC layer
Hold the control domain of data packet, the header packet information of MAC layer data packet.
Optionally, the acquisition methods of the channel status further include: determine that instruction information, the instruction information are opposite end hair
The transmitting antenna information for sending data to use；The instruction information is sent to the opposite end, so that the opposite end is based on the instruction
Information determines and sends the transmitting antenna that data use.
Optionally, the data that the opposite end is sent include Sounding data.
The embodiment of the present invention provides a kind of sending device, comprising: the first determination unit, be adapted to determine that data to be sent and
Its transmitting antenna used；First transmission unit is suitable for utilizing identified transmitting antenna, by the data to be sent and institute
The mark of determining transmitting antenna is sent to opposite end, so that the opposite end is based on the data to be sent that receive and described
The mark of transmitting antenna calculates and obtains channel state information.
Optionally, the number of the transmitting antenna is one or more.
Optionally, the mark of the transmitting antenna includes: invalidated identification；The invalidated identification is used to indicate described to end group
In the data acquisition received channel state information be invalid information.
Optionally, first transmission unit is suitable for identified transmitting antenna through following at least one data packet
Mark be sent to opposite end: the signaling domain of physical layer data packet, the business domains of physical layer data packet, MAC layer content-data packet
The packet header of control domain, MAC layer data packet.
Optionally, the sending device further include: the first receiving unit, the instruction information sent suitable for receiving opposite end；The
Two determination units are suitable for being based on the instruction information, determine and send the transmitting antenna that the data to be sent use.
Optionally, the data to be sent include Sounding data, so that the opposite end is based on Sounding data,
It calculates and obtains channel state information.
The embodiment of the present invention provides a kind of receiving device, comprising: the second receiving unit, the data sent suitable for receiving opposite end
And its mark of the transmitting antenna used；Acquiring unit, suitable for based on the data received and its transmitting antenna used
Mark, calculate and obtain channel state information.
Optionally, the number of the transmitting antenna is one or more.
Optionally, second receiving unit, suitable for obtaining the transmitting antenna by following at least one data packet
Mark: the signaling domain of physical layer data packet, the business domains of physical layer data packet, control domain, the MAC layer of MAC layer content-data packet
The header packet information of data packet.
Optionally, the receiving device further include: third determination unit is adapted to determine that instruction information, the instruction information
The transmitting antenna information that data use is sent for opposite end；Second transmission unit, is suitable for sending the instruction information to the opposite end,
So that the opposite end is based on the instruction information, determines and send the transmitting antenna that data use.
Optionally, the data that the opposite end is sent include Sounding data.
The embodiment of the present invention provides a kind of computer readable storage medium, and computer readable storage medium is non-volatile deposits
Storage media or non-transitory storage media, are stored thereon with computer instruction, and the computer instruction executes any of the above-described when running
The step of acquisition methods of the indicating means of kind described channel status or channel status.
The embodiment of the present invention provides a kind of sending device, including memory and processor, and being stored on the memory can
The computer instruction run on the processor, the processor execute any letter when running the computer instruction
The step of indicating means of road state.
The embodiment of the present invention provides a kind of receiving device, including memory and processor, and being stored on the memory can
The computer instruction run on the processor, the processor execute any letter when running the computer instruction
The step of acquisition methods of road state.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
The embodiment of the present invention passes through the transmitting antenna for determining data to be sent and its using, then by data to be sent
And the mark of identified transmitting antenna is sent to opposite end, and opposite end (i.e. Beamformer) can be made based on the data received
And the mark of transmitting antenna, channel state information is calculated and obtained, avoids directly transmitting feeding back channel state information or transmission
The big technical problem of overhead caused by Sounding data packet.Therefore above scheme is applied, opposite end can be made with lower
Overhead obtains channel state information.
Further, by receiving the data of opposite end transmission and its mark of the transmitting antenna used, it is then based on reception number
According to and its mark of transmitting antenna that uses, calculate and obtain channel state information, can be to avoid opposite end (i.e. Beamformee)
It directly transmits feeding back channel state information or sends the big technical problem of overhead caused by Sounding data packet.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the indicating means of channel status provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the acquisition methods of channel status provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of Beamforming channel provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of another kind Beamforming channel provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of another Beamforming channel provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of sending device provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of receiving device provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram of another Beamforming channel provided in an embodiment of the present invention.
Specific embodiment
Existing implementation needs receiving end feeding back channel state information for explicit acquisition methods, occupies WLAN letter
Road resource, overhead are larger；For implicit acquisition methods, receiving end is needed to feed back Sounding data packet, it is also desirable to occupy
WLAN channel resource, overhead are big.
The embodiment of the present invention passes through the transmitting antenna for determining data to be sent and its using, then by data to be sent
And the mark of identified transmitting antenna is sent to opposite end, and opposite end (i.e. Beamformer) can be made based on the data received
And the mark of transmitting antenna, channel state information is calculated and obtained, avoids directly transmitting feeding back channel state information or transmission
The big technical problem of overhead caused by Sounding data packet.Therefore above scheme is applied, opposite end can be made with lower
Overhead obtains channel state information.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Referring to Fig. 1, the embodiment of the invention provides a kind of indicating means of channel status, may include steps of:
Step S101, the transmitting antenna for determining data to be sent and its using.
In specific implementation, when transmitting/reception shares identical antenna, transmission channel is identical with channel is received, this hair
Bright embodiment considers that the mark of the transmitting antenna used is sent to Beamformer when Beamformee sends data,
Allow Beamformer based on received data and its transmitting antenna used, calculates and obtain channel state information.Therefore
For Beamformee, it is necessary first to the transmitting antenna for determining data to be sent and its using.
In specific implementation, Beamformee can determine the transmitting day that data to be sent use based on the algorithm of itself
Line, i.e. Beamformee can be selected reasonable transmitting antenna, beamformer obtained preferably based on certain algorithm
Complete channel state information；The instruction information that can also be sent based on opposite end (i.e. Beamformer), determine send it is described to
The transmitting antenna that the data of transmission use.
For example, Beamformee is at the first moment, selection sends data using the first transmitting antenna, so that beamformer
Obtain the corresponding channel state information of the first transmitting antenna；Beamformee uses the second transmitting antenna in the second moment, selection
Data are sent, so that beamformer obtains the corresponding channel state information of the second transmitting antenna.Beamformee is at first
Carving can make beamformer obtain the first transmitting day with the second moment by selecting different transmitting antennas to send data
Line and the corresponding complete channel state information of the second transmitting antenna.
In an embodiment of the present invention, the indicating means of the channel status further include: receive the instruction letter that opposite end is sent
Breath；Based on the instruction information, determines and send the transmitting antenna that the data to be sent use.
In specific implementation, the number of the transmitting antenna can be one, or multiple.When the transmitting antenna
Number be it is multiple when, can using one of transmitting antenna send data, multiple transmitting days therein can also be used
Line sends data.
Step S102, using identified transmitting antenna, by the data to be sent and identified transmitting antenna
Mark is sent to opposite end, so that the opposite end is calculated and obtained based on the data received and the mark of the transmitting antenna
It wins the confidence channel state information.
In specific implementation, the opposite end is the one of the mark of reception data and identified transmitting antenna to be sent
End is Beamformer.
In specific implementation, the opposite end can be STA, or AP.When the opposite end is STA, AP is
Beamformee executes the indicating means of above-mentioned channel status, when the opposite end is AP, STA Beamformee, in execution
State the indicating means of channel status.
In specific implementation, the mark of the transmitting antenna can be the index mark of the transmitting antenna used, can also be with
For invalidated identification, the invalidated identification is used to indicate channel state information of the opposite end based on the data acquisition received
For invalid information.
For example, Beamformee is based on cyclic-shifted delay technology (Circular Shift Delay, CSD) in antenna 1
Data are sent simultaneously with antenna 1, Beamformer calculates acquisition based on the data received and the mark of transmitting antenna at this time
Channel status is inactive channel.
In specific implementation, the invalidated identification can be using any one value table of the index value different from transmitting antenna
Show, the embodiment of the present invention is with no restrictions.
In specific implementation, the correlation of media access control (Media Access Control, MAC) layer can both be passed through
The mark of identified transmitting antenna is sent to opposite end by information, can also pass through the correlation of physical layer (Physical Layer)
The mark of identified transmitting antenna is sent to opposite end by information.
In an embodiment of the present invention, pass through the signaling domain of physical layer data packet (SIG Field), physical layer data packet
Business domains (Service Field), the control domain (Control Field) of MAC layer content-data packet (MAC Content), MAC
One of packet header (Header) of layer data packet or several marks by identified transmitting antenna are sent to opposite end.
In specific implementation, the mark of identified transmitting antenna can also be sent to opposite end by other signalings,
Belong to the protection scope of the embodiment of the present invention.
For example, 4 bits that can use in above-mentioned at least one data packet will when the number of transmitting antenna is 4
The mark of identified transmitting antenna is sent to opposite end, wherein corresponding relationship such as 1 institute of table of the mark of 4 bits and transmitting antenna
Show.
Table 1
In table 1,0 respective antenna 0 of bit, 1 respective antenna 1 of bit, 2 respective antenna 2 of bit, 3 respective antenna 3 of bit,
When corresponding bit sets 1, expression has used its corresponding antenna.For example, mark #1 corresponding 1000, bit 0 sets 1, indicates to make
With antenna 0；#6 corresponding 0101 is identified, bit 1, bit 3 set 1, and expression has used antenna 1 and antenna 3；It is corresponding to identify #13
1011, bit 0, bit 2 and bit 3 set 1, and expression has used antenna 0, antenna 2 and antenna 3；#15 corresponding 1111 is identified, than
Spy 0, bit 1, bit 2 and bit 3 set 1, and expression has used antenna 0, antenna 1, antenna 2 and antenna 3, and mark #0 is no criterion
Know, indicates without available channel state information.
In specific implementation, the indicating means of above-mentioned channel status can be with existing displaying scheme, existing implicit side
Case is used together, and can also be only used together with existing implicit aspect, so that opposite end obtains accurate channel state information,
Improve Beamforming performance.
In specific implementation, described when the indicating means of above-mentioned channel status is used together with existing implicit aspect
Data to be sent may include: Sounding data packet.The i.e. described data to be sent include: the data packet normally sent
(Packet) and Sounding data packet.
In specific implementation, the data to be sent may include part Sounding data packet, also may include complete
Portion's Sounding data packet so that the opposite end be based on all or part of Sounding data, calculate and obtain all or
Impaction of partial channel state information.
It is understood that the indicating means of above-mentioned channel status also belongs to a kind of implicit aspect.
Using above scheme, by transmitting antenna determination data to be sent and its used, then by number to be sent
According to and the mark of identified transmitting antenna be sent to opposite end, opposite end can be made based on the data and transmitting antenna received
Mark, calculates and obtains channel state information, avoids directly transmitting feeding back channel state information or sends Sounding data
The big technical problem of overhead caused by wrapping.Therefore above scheme is applied, opposite end can be made with lower overhead, obtained
Channel state information.Channel state information can also be more rapidly updated simultaneously.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides a kind of channels
The acquisition methods of state, as shown in Figure 2.
Referring to fig. 2, the acquisition methods of the channel status may include steps of:
Step S201 receives the data of opposite end transmission and its mark of the transmitting antenna used.
In specific implementation, the opposite end is the one end for sending the mark of data and its transmitting antenna used, is
Beamformee both can be STA, or AP.
In specific implementation, it is led in order to avoid directly transmitting feeding back channel state information or sending Sounding data packet
The big technical problem of the overhead of cause, when transmitting/reception shares identical antenna, Beamformee can will be described pending
The mark of the data and identified transmitting antenna sent is sent to Beamformer, therefore for Beamformer, it is necessary first to it connects
Receive the data of opposite end transmission and its mark of the transmitting antenna used.
In specific implementation, the number of the transmitting antenna can be one, or multiple.
In specific implementation, the mark of the transmitting antenna can be the index mark of the transmitting antenna used, can also be with
For invalidated identification, it is invalid information that the invalidated identification, which is used to indicate the channel state information based on the data acquisition received,.
In specific implementation, the signaling domain (SIG Field) of physical layer data packet, the industry of physical layer data packet can be passed through
Be engaged in domain (Service Field), MAC layer content-data packet (MAC Content) control domain (Control Field), MAC layer
One of packet header (Header) of data packet or several marks for obtaining the transmitting antenna.
In specific implementation, the mark that the transmitting antenna can also be obtained by other signalings, belongs to the present invention
The protection scope of embodiment.
Step S202 is calculated based on the mark of the data and its transmitting antenna used that receive and is obtained channel
Status information.
In specific implementation, the opposite end can determine the transmitting antenna for sending data and using based on the algorithm of itself,
Instruction information can be sent to opposite end, so that the opposite end determines the transmitting day for sending data and using based on the instruction information
Line.
In an embodiment of the present invention, the acquisition methods of the channel status further include: determine instruction information, the instruction
Information is the transmitting antenna information that opposite end sends that data use；The instruction information is sent to the opposite end, so that the opposite end
Based on the instruction information, determines and send the transmitting antenna that data use.
In specific implementation, the acquisition methods of above-mentioned channel status can be with existing displaying scheme, existing implicit side
Case is used together, and can also be only used together with existing implicit aspect, to obtain accurate channel state information, is improved
Beamforming performance.
In specific implementation, described when the acquisition methods of above-mentioned channel status are used together with existing implicit aspect
The data that opposite end is sent may include: Sounding data packet.The data that the i.e. described opposite end is sent are the data packet normally sent
(Packet) and Sounding data packet.
In specific implementation, the data that the opposite end is sent may include part Sounding data packet, also may include
Whole Sounding data packets.
It is understood that for step S201, when only one transmitting antenna of opposite end, transmitting antenna can not be sent
Mark, it can only receive opposite end send data, do not receive the mark of transmitting antenna, be then directly based upon reception data,
Channel state information is calculated and obtains, the program also belongs to the protection scope of the embodiment of the present invention.
For example, receiving the opposite equip. of (Tx1Rx1) for 1 hair 1, antenna is penetrated since only one is transmitted/received, it is only one corresponding
Reception/sendaisle, therefore opposite end can directly transmit data, the mark without sending transmitting antenna.
It is then based on using above scheme by receiving the data of opposite end transmission and its mark of the transmitting antenna used
The mark for receiving data and its transmitting antenna used, calculates and obtains channel state information, can be to avoid opposite end (i.e.
Beamformee it) directly transmits feeding back channel state information or sends the big skill of overhead caused by Sounding data packet
Art problem.Channel state information can also be more rapidly updated simultaneously.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides one kind
The schematic diagram of Beamforming channel, as shown in Figure 3.
Referring to Fig. 3, transmitting receives common identical antenna, and corresponding 4 hair 4 of Beamformer receives (4Tx4Rx),
Corresponding 2 hair 2 of Beamformee receives (2Tx2Rx), and Beamformee sends data to Beamformer merely with Tx1.
The mark of Tx1 is sent to while Beamformee sends data using the indicating means of above-mentioned channel status
Beamformer。
Using the acquisition methods of above-mentioned channel status, Beamformer is based on the Beamformee data sent and Tx1
Mark, calculate and obtain channel H={ h11, h12, h13, h14Status information, be used for Beamforming.Since transmitting receives
Common identical antenna, the meaning of channel H are as follows:
Wherein h11Not only it is the channel of the Rx1 of the Tx1 to Beamformee of Beamformer, but also is the Tx1 of Beamformee
To the channel of the Rx1 of Beamformer.
h12Not only for Beamformer Tx2 to Beamformee Rx1 channel, but also for Beamformee Tx1 extremely
The channel of the Rx2 of Beamformer.
h13Not only for Beamformer Tx3 to Beamformee Rx1 channel, but also for Beamformee Tx1 extremely
The channel of the Rx3 of Beamformer.
h14Not only for Beamformer Tx4 to Beamformee Rx1 channel, but also for Beamformee Tx1 extremely
The channel of the Rx4 of Beamformer.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another kinds
The schematic diagram of Beamforming channel, as shown in Figure 4.
Referring to fig. 4, transmitting receives common identical antenna, and corresponding 4 hair 4 of Beamformer receives (4Tx4Rx),
Corresponding 2 hair 2 of Beamformee receives (2Tx2Rx), and Beamformee sends data to Beamformer merely with Tx2.
The mark of Tx2 is sent to while Beamformee sends data using the indicating means of above-mentioned channel status
Beamformer。
Using the acquisition methods of above-mentioned channel status, Beamformer is based on the Beamformee data sent and Tx2
Mark, calculate and obtain channel H={ h21, h22, h23, h24Status information, be used for Beamforming.Since transmitting receives
Common identical antenna, the meaning of channel H are as follows:
Wherein h21Not only it is the channel of the Rx2 of the Tx1 to Beamformee of Beamformer, but also is the Tx2 of Beamformee
To the channel of the Rx1 of Beamformer.
h22Not only for Beamformer Tx2 to Beamformee Rx2 channel, but also for Beamformee Tx2 extremely
The channel of the Rx2 of Beamformer.
h23Not only for Beamformer Tx3 to Beamformee Rx2 channel, but also for Beamformee Tx2 extremely
The channel of the Rx3 of Beamformer.
h24Not only for Beamformer Tx4 to Beamformee Rx2 channel, but also for Beamformee Tx2 extremely
The channel of the Rx4 of Beamformer.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another
The schematic diagram of Beamforming channel, as shown in Figure 5.
Referring to Fig. 5, transmitting receives common identical antenna, and corresponding 4 hair 4 of Beamformer receives (4Tx4Rx),
Corresponding 2 hair 2 of Beamformee receives (2Tx2Rx), and Beamformee is based on multiple-input multiple-output technology (MultipleInput
Multiple Output, MIMO send data to Beamformer using Tx1, Tx2 simultaneously.
Using the indicating means of above-mentioned channel status, while Beamformee sends data, the mark of Tx1, Tx2 are sent out
It send to Beamformer.
Using the acquisition methods of above-mentioned channel status, Beamformer is based on the Beamformee data sent and Tx2
Mark, calculate and obtain channel H={ h11, h12, h13, h14, h21, h22, h23, h24Status information, be used for
Beamforming.Since transmitting receives common identical antenna, the meaning of channel H is as follows:
Wherein h11Not only it is the channel of the Rx1 of the Tx1 to Beamformee of Beamformer, but also is the Tx1 of Beamformee
To the channel of the Rx1 of Beamformer.
h12Not only for Beamformer Tx2 to Beamformee Rx1 channel, but also for Beamformee Tx1 extremely
The channel of the Rx2 of Beamformer.
h13Not only for Beamformer Tx3 to Beamformee Rx1 channel, but also for Beamformee Tx1 extremely
The channel of the Rx3 of Beamformer.
h14Not only for Beamformer Tx4 to Beamformee Rx1 channel, but also for Beamformee Tx1 extremely
The channel of the Rx4 of Beamformer.
Wherein h21Not only it is the channel of the Rx2 of the Tx1 to Beamformee of Beamformer, but also is the Tx2 of Beamformee
To the channel of the Rx1 of Beamformer.
h22Not only for Beamformer Tx2 to Beamformee Rx2 channel, but also for Beamformee Tx2 extremely
The channel of the Rx2 of Beamformer.
h23Not only for Beamformer Tx3 to Beamformee Rx2 channel, but also for Beamformee Tx2 extremely
The channel of the Rx3 of Beamformer.
h24Not only for Beamformer Tx4 to Beamformee Rx2 channel, but also for Beamformee Tx2 extremely
The channel of the Rx4 of Beamformer.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another
The schematic diagram of Beamforming channel, as shown in Figure 8.
Referring to Fig. 8, transmitting receives common identical antenna, and corresponding 4 hair 4 of Beamformer receives (4Tx4Rx),
Corresponding 2 hair 2 of Beamformee receives (2Tx2Rx), and Beamformee is based on CSD and sends data simultaneously in Tx1 and Tx2.
Using the indicating means of above-mentioned channel status, the transmitting antenna is identified as invalidated identification, instruction
Channel state information of the Beamformer based on the data acquisition received is invalid information.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides one kind can
Realize the sending device of the indicating means of above-mentioned channel status, as shown in Figure 6.
Referring to Fig. 6, the sending device 60, comprising: the first determination unit 61 and the first transmission unit 62, in which:
First determination unit 61, the transmitting antenna for being adapted to determine that data to be sent and its using.
First transmission unit 62 is suitable for utilizing identified transmitting antenna, and the data to be sent and institute are true
The mark of fixed transmitting antenna is sent to opposite end, so that the opposite end is based on the data and the transmitting antenna received
Mark, calculates and obtains channel state information.
In specific implementation, the number of the transmitting antenna is one or more.
In an embodiment of the present invention, the mark of the transmitting antenna includes: invalidated identification；The invalidated identification is for referring to
Show that channel state information of the opposite end based on the data acquisition received is invalid information.
In an embodiment of the present invention, first transmission unit 62 is suitable for institute through following at least one data packet
The mark of determining transmitting antenna is sent to opposite end: the signaling domain of physical layer data packet, the business domains of physical layer data packet, MAC
The packet header of the layer control domain of content-data packet, MAC layer data packet.
In specific implementation, the sending device 60 can also include: that the first receiving unit (not shown) and second determine
Unit (not shown), in which:
First receiving unit, the instruction information sent suitable for receiving opposite end.
Second determination unit is suitable for being based on the instruction information, determines and sends what the data to be sent used
Transmitting antenna.
In an embodiment of the present invention, the data to be sent include Sounding data, so that the opposite end is based on
Sounding data calculate and obtain channel state information.
In specific implementation, the workflow of the sending device 60 and principle can be with reference to providing in above-described embodiment
Description in the indicating means of channel status, details are not described herein again.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides one kind can
Realize the receiving device of the acquisition methods of above-mentioned channel status, as shown in Figure 7.
Referring to Fig. 7, the receiving device 70 may include: the second receiving unit 71 and acquiring unit 72, in which:
Second receiving unit 71, suitable for receiving the data of opposite end transmission and its mark of the transmitting antenna used.
The acquiring unit 72 is calculated suitable for the mark based on the data and its transmitting antenna used that receive
And obtain channel state information.
In specific implementation, the number of the transmitting antenna is one or more.
In an embodiment of the present invention, second receiving unit 71 is suitable for obtaining by following at least one data packet
The mark of the transmitting antenna: the signaling domain of physical layer data packet, the business domains of physical layer data packet, MAC layer content-data packet
Control domain, MAC layer data packet header packet information.
In specific implementation, the receiving device 70 can also include: that third determination unit (not shown) and second send
Unit (not shown), in which:
The third determination unit is adapted to determine that instruction information, the instruction information are the hair that opposite end sends that data use
Penetrate aerial information.
Second transmission unit is suitable for sending the instruction information to the opposite end, so that the opposite end is based on described
It indicates information, determines and send the transmitting antenna that data use.
In an embodiment of the present invention, the data that the opposite end is sent include Sounding data.
In specific implementation, the workflow and principle of the receiving device 70 can be with reference to providing in above-described embodiment
Description in the acquisition methods of channel status, details are not described herein again.
The embodiment of the present invention provides a kind of computer readable storage medium, and computer readable storage medium is non-volatile deposits
Storage media or non-transitory storage media, are stored thereon with computer instruction, and the computer instruction executes any of the above-described when running
Step corresponding to the acquisition methods of the indicating means or channel status of planting the channel status, details are not described herein again.
The embodiment of the present invention provides a kind of sending device, including memory and processor, is stored with energy on the memory
Enough computer instructions run on the processor, the processor execute any of the above-described kind when running the computer instruction
Step corresponding to the indicating means of the channel status, details are not described herein again.
The embodiment of the present invention provides a kind of receiving device, including memory and processor, is stored with energy on the memory
Enough computer instructions run on the processor, the processor execute any of the above-described kind when running the computer instruction
Step corresponding to the acquisition methods of the channel status, details are not described herein again.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (25)
1. a kind of indicating means of channel status characterized by comprising
The transmitting antenna for determining data to be sent and its using；
Using identified transmitting antenna, the mark of the data to be sent and identified transmitting antenna is sent to pair
End, so that the opposite end based on the data received and the mark of the transmitting antenna, calculates and obtains channel status letter
Breath.
2. the indicating means of channel status according to claim 1, which is characterized in that the number of the transmitting antenna is one
It is a or multiple.
3. the indicating means of channel status according to claim 2, which is characterized in that the mark packet of the transmitting antenna
It includes: invalidated identification；The invalidated identification is used to indicate the opposite end to be believed based on the channel status of the data acquisition received
Breath is invalid information.
4. the indicating means of channel status according to claim 1, which is characterized in that pass through following at least one data packet
The mark of identified transmitting antenna is sent to opposite end:
The signaling domain of physical layer data packet, the business domains of physical layer data packet, the control domain of MAC layer content-data packet, MAC layer number
According to the packet header of packet.
5. the indicating means of channel status according to claim 1, which is characterized in that further include: receive what opposite end was sent
Indicate information；
Based on the instruction information, determines and send the transmitting antenna that the data to be sent use.
6. the indicating means of channel status according to claim 1, which is characterized in that the data to be sent include
Sounding data calculate so that the opposite end is based on Sounding data and obtain channel state information.
7. a kind of acquisition methods of channel status characterized by comprising
Receive the data of opposite end transmission and its mark of the transmitting antenna used；
Based on the mark of the data and its transmitting antenna used that receive, calculates and obtain channel state information.
8. the acquisition methods of channel status according to claim 7, which is characterized in that the number of the transmitting antenna is one
It is a or multiple.
9. the acquisition methods of channel status according to claim 7, which is characterized in that receive the data that opposite end is sent and use
The mark of transmitting antenna include: that the mark of the transmitting antenna is obtained by following at least one data packet:
The signaling domain of physical layer data packet, the business domains of physical layer data packet, the control domain of MAC layer content-data packet, MAC layer number
According to the header packet information of packet.
10. the acquisition methods of channel status according to claim 7, which is characterized in that further include:
Determine that instruction information, the instruction information are the transmitting antenna information that opposite end sends that data use；
It sends the instruction information and determines that sending data uses so that the opposite end is based on the instruction information to the opposite end
Transmitting antenna.
11. the acquisition methods of channel status according to claim 7, which is characterized in that the data packet that the opposite end is sent
Include Sounding data.
12. a kind of sending device characterized by comprising
First determination unit, the transmitting antenna for being adapted to determine that data to be sent and its using；
First transmission unit is suitable for utilizing identified transmitting antenna, by the data to be sent and identified transmitting day
The mark of line is sent to opposite end, so that mark of the opposite end based on the data to be sent and the transmitting antenna that receive
Know, calculates and obtain channel state information.
13. sending device according to claim 12, which is characterized in that the number of the transmitting antenna is for one or more
It is a.
14. sending device according to claim 13, which is characterized in that the mark of the transmitting antenna includes: no criterion
Know；It is invalid letter that the invalidated identification, which is used to indicate channel state information of the opposite end based on the data acquisition received,
Breath.
15. sending device according to claim 12, which is characterized in that first transmission unit is suitable for by following
The mark of identified transmitting antenna is sent to opposite end by least one data packet:
The signaling domain of physical layer data packet, the business domains of physical layer data packet, the control domain of MAC layer content-data packet, MAC layer number
According to the packet header of packet.
16. sending device according to claim 12, which is characterized in that further include:
First receiving unit, the instruction information sent suitable for receiving opposite end；
Second determination unit is suitable for being based on the instruction information, determines and sends the transmitting antenna that the data to be sent use.
17. sending device according to claim 12, which is characterized in that the data to be sent include Sounding number
According to so that the opposite end is calculated based on Sounding data and is obtained channel state information.
18. a kind of receiving device characterized by comprising
Second receiving unit, suitable for receiving the data of opposite end transmission and its mark of the transmitting antenna used；
Acquiring unit calculates suitable for the mark based on the data and its transmitting antenna used that receive and obtains channel
Status information.
19. receiving device according to claim 18, which is characterized in that the number of the transmitting antenna is for one or more
It is a.
20. receiving device according to claim 18, which is characterized in that second receiving unit is suitable for by following
At least one data packet obtains the mark of the transmitting antenna:
The signaling domain of physical layer data packet, the business domains of physical layer data packet, the control domain of MAC layer content-data packet, MAC layer number
According to the header packet information of packet.
21. receiving device according to claim 18, which is characterized in that further include:
Third determination unit is adapted to determine that instruction information, the instruction information are the transmitting antenna letter that opposite end sends that data use
Breath；
Second transmission unit, suitable for the transmission instruction information to the opposite end, so that the opposite end is based on the instruction information,
It determines and sends the transmitting antenna that data use.
22. receiving device according to claim 18, which is characterized in that the data that the opposite end is sent include Sounding
Data.
23. a kind of computer readable storage medium, computer readable storage medium is non-volatile memory medium or non-transient deposits
Storage media is stored thereon with computer instruction, which is characterized in that the computer instruction run when perform claim require 1 to 6 or
The step of any one of person 7 to 11 the method.
24. a kind of sending device, including memory and processor, it is stored with and can runs on the processor on the memory
Computer instruction, which is characterized in that perform claim requires any in 1 to 6 when the processor runs the computer instruction
The step of item the method.
25. a kind of receiving device, including memory and processor, it is stored with and can runs on the processor on the memory
Computer instruction, which is characterized in that perform claim requires any in 7 to 11 when the processor runs the computer instruction
The step of item the method.
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| CN109412665B (en) | 2022-03-22 |
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