CN107592142A - The transmission method and device of a kind of channel estimation sequence - Google Patents
The transmission method and device of a kind of channel estimation sequence Download PDFInfo
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Abstract
This application provides a kind of data transmission method of channel estimation sequence, this method includes generating and sending physical layer protocol data unit PPDU, the PPDU includes channel estimation field, wherein channel estimation field includes one or more channel estimation sequences, and each channel estimation sequence in one or more of channel estimation sequences is converted to by channel estimation initiation sequence.Present invention also provides the transmitting device of corresponding channel estimation sequence, by the above-mentioned means, the PPDU based on the channel estimation field can support the characteristic of more spatial flows.Also, the channel estimation initiation sequence is designed based on Gray's Golay sequences, it is possible to reduce extra storage resource.
Description
This application claims Patent Office of the People's Republic of China, Application No. CN201610543946.1, invention are submitted on July 8th, 2016
A kind of priority of the CN patent applications of entitled " transmission method and device of channel estimation sequence ", entire contents are by drawing
With being incorporated in the present application.
Technical field
The application belongs to communication technical field, more particularly to the transmission method and device of a kind of channel estimation sequence.
Background technology
802.11 series standards are to WLAN (English：Wireless Local Area Networks, referred to as：
WLAN standardization) causes the cost of wlan device to substantially reduce.Wireless Fidelity (English：Wireless Fidelity, referred to as：
Wi-Fi) be a wireless network communication technique brand, held by Wi-Fi Alliance, it is therefore an objective to improvement be based on 802.11 standards
Radio network product between intercommunity, be properly termed as Wi-Fi network using the WLAN of 802.11 serial protocols.
At present, 802.11 standard, after each version such as 802.11a, 802.11b, 802.11g, 802.11n and 802.11ac
This, technology development is more and more ripe.802.11ad it is Institute of Electrical and Electric Engineers (English：Institute of
Electrical and Electronics Engineers, referred to as：IEEE) a branch in 802.11 family of standards, work
Make in 60GHz frequency ranges.802.11ad standards use single channel transmission, a width of 2.16GHz of band of each channel.
At present, the 802.11ay standards in revision are directed to the evolution and upgrading of 802.11ad standards.802.11ay will be propped up
Hold multiple-input, multiple-output (English：Multiple Input Multiple Output, referred to as：) and multichannel MIMO.It is existing
802.11ad channel estimation sequence can not support multiple antennas application scenarios, it is necessary to design new channel estimation sequence.
The content of the invention
In view of this, the application provides a kind of transmission method and device of channel estimation sequence, existing for solving
802.11ad channel estimation sequences do not support the problem of multiple antennas application scenarios.
In a first aspect, the embodiments of the invention provide a kind of transmission method of channel estimation sequence, applied to more than 6GHz
Wireless communication system, this method includes：Physical layer protocol data unit PPDU is generated and sent, the PPDU estimates comprising channel
Field is counted, the channel estimation field includes one or more channel estimation sequences, one or more of channel estimation sequences
In each channel estimation sequence be converted to by channel estimation initiation sequence.Above-mentioned transmission method is by website, access point, user
Terminal and base station are performed, and the application scenarios of multiple antennas can be supported using above-mentioned form PPDU.
In a kind of possible design, the channel estimation initiation sequence for zeros (79) ,-Gb32 ,-Ga32, Gb32,
Ga32, Gb32 ,-Gb16,0,0,0, Ga16 ,-Ga32, Gb32 ,-Ga32 ,-Gb32, Ga32, zeros (78) }, zeros (n) tables
The sequence of n zero composition is shown as, n is integer.
In a kind of possible design, the channel estimation initiation sequence for zeros (79), Gb32, Ga32 ,-Gb32 ,-
Ga32,-Gb32,Gb16,0,0,0,-Ga16,Ga32,-Gb32,Ga32,Gb32,-Ga32,zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79), Ga32 (24:32),-
Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,-Gb32(8:32),Ga32,-Gb32,Gb16,-
Ga16,Gb32,Ga32(1:16),Ga32(17:23),zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79) ,-Ga32 (24:32),
Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-
Gb32,-Ga32(1:16),-Ga32(17:23),zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79), Ga32 (24:32),-
Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,-Gb32(8:32),Ga32,-Gb32,Gb16,-
Ga16,Gb32,Gb16,Ga32(17:23),zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79) ,-Ga32 (24:32),
Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-
Gb32,-Gb16,-Ga32(17:23),zeros(78)}。
Alternatively, the number of the channel estimation sequence in the channel estimation field is more than or equal to what the PPDU was supported
Space-time fluxion.
Alternatively, the channel estimation field is by supporting 802.11ay website to be used for channel estimation.
Second aspect, the embodiments of the invention provide a kind of transmitting device of channel estimation sequence, applied to more than 6GHz
Wireless communication system, the device includes：BBP and transceiver, BBP are used to generate Physical layer protocol data
Unit PPDU, transceiver are used to send the PPDU, and the PPDU includes channel estimation field, and the channel estimation field includes one
Individual or multiple channel estimation sequences, each channel estimation sequence in one or more of channel estimation sequences is by channel estimation
Initiation sequence is converted to.The application scenarios of multiple antennas can be supported using above-mentioned form PPDU transmitting device.
In a kind of possible design, the channel estimation initiation sequence for zeros (79) ,-Gb32 ,-Ga32, Gb32,
Ga32, Gb32 ,-Gb16,0,0,0, Ga16 ,-Ga32, Gb32 ,-Ga32 ,-Gb32, Ga32, zeros (78) }, zeros (n) tables
The sequence of n zero composition is shown as, n is integer.
In a kind of possible design, the channel estimation initiation sequence for zeros (79), Gb32, Ga32 ,-Gb32 ,-
Ga32,-Gb32,Gb16,0,0,0,-Ga16,Ga32,-Gb32,Ga32,Gb32,-Ga32,zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79), Ga32 (24:32),-
Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,-Gb32(8:32),Ga32,-Gb32,Gb16,-
Ga16,Gb32,Ga32(1:16),Ga32(17:23),zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79) ,-Ga32 (24:32),
Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-
Gb32,-Ga32(1:16),-Ga32(17:23),zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79), Ga32 (24:32),-
Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,-Gb32(8:32),Ga32,-Gb32,Gb16,-
Ga16,Gb32,Gb16,Ga32(17:23),zeros(78)}。
In a kind of possible design, the channel estimation initiation sequence is { zeros (79) ,-Ga32 (24:32),
Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-
Gb32,-Gb16,-Ga32(17:23),zeros(78)}。
Alternatively, the number of the channel estimation sequence in the channel estimation field is more than or equal to what the PPDU was supported
Space-time fluxion.
Alternatively, the channel estimation field is by supporting 802.11ay website to be used for channel estimation.
This application provides a kind of data transmission method of channel estimation sequence, this method includes generating and sending physical layer
Protocol Data Unit PPDU, the PPDU include channel estimation field, and wherein channel estimation field is estimated comprising one or more channels
Sequence is counted, and each channel estimation sequence in one or more of channel estimation sequences is turned by channel estimation initiation sequence
Get in return.Present invention also provides the transmitting device of corresponding channel estimation sequence, by the above-mentioned means, being based on the channel estimation
The PPDU of field can support the characteristic of more spatial flows.Also, the channel estimation initiation sequence is entered based on Gray's Golay sequences
Row design, it is possible to reduce extra storage resource.
Brief description of the drawings
Fig. 1 is the application scenario diagram of WLAN.
Fig. 2 is the application scenario diagram of cellular communications network.
Fig. 3 is the method flow diagram of the embodiment of the present application 1.
Fig. 4 is the frame assumption diagram of the embodiment of the present application.
Fig. 5 is the device physical structure chart of the embodiment of the present application 2.
Embodiment
To make the purpose, technical scheme and advantage of the application clearer, the application is embodied below in conjunction with the accompanying drawings
Example is described in further detail.For comprehensive understanding the application, numerous details are refer in the following detailed description.
The embodiment of the present application can apply to WLAN, and WLAN accepted standards are IEEE802.11 series at present.WLAN nets
Network can include multiple Basic Service Sets (English：Basic Service Set, referred to as：BSS), plurality of BSS passes through exchange
Equipment is connected to equipment of the core network, as shown in Figure 1.Each Basic Service Set can include the website of an access point class (referred to as：
AP, English：Access Point) and multiple non-access point classes website (English：None Access Point Station, letter
Claim：Non-AP STA).
Website of access point class, also referred to as wireless access points or focus etc..AP major deployments are in family, building
Inside portion and garden, typical covering radius is tens meters to rice up to a hundred.AP is equivalent to a connection wired network and wireless network
Bridge, its main function are to connect together each wireless network clients, then by wireless network access network based on ethernet.Specifically
Ground, AP can be terminal device of the WiFi chip either with WiFi chip or the network equipment with WiFi chip.AP can
To support 802.11ay, 802.11ad, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a etc.
Multiple types.
Website (the English of non-access point class：None Access Point Station, referred to as：Non-AP STA), can be with
It is wireless communications chips, wireless senser or wireless communication terminal.Specifically, such as：Support the intelligent hand of WiFi communication function
Machine, tablet personal computer and personal computer, the set top box and intelligent television of WiFi communication function are supported, support WiFi communication function
Intelligent wearable device, support the vehicular communication equipment of WiFi communication function and support the unmanned plane of WiFi communication function.Website
802.11ay, 802.11ad, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a can be supported
Deng multiple types.It should be noted that Non-AP STA are hereafter referred to as STA.
The embodiment of the present application can also be applied to cellular communication system, and cellular communication system is generally made up of cell, each
Cell includes a base station (English：Base Station, referred to as：BS), base station is (English to user terminal：User
Equipment, referred to as：UE communication service) is provided, wherein base station is connected to equipment of the core network, as shown in Figure 2.
It should be noted that the cellular communication system that the embodiment of the present application refers to includes but is not limited to：Arrowband Internet of Things system
System (English：Narrow Band-Internet of Things, referred to as：NB-IoT), global system for mobile communications (English：
Global System for Mobile Communications, referred to as：GSM), enhanced data rates for gsm evolution system
(English：Enhanced Data rate for GSM Evolution, referred to as：EDGE), broadband CDMA system (English：
Wideband Code Division Multiple Access, referred to as：WCDMA), CDMA 2000 system (English：Code
Division Multiple Access, referred to as：CDMA2000), TDS-CDMA system (English：Time
Division-Synchronization Code Division Multiple Access, referred to as：TD-SCDMA), drill for a long time
Enter system (English：Long Term Evolution, referred to as：) and next generation mobile communication system LTE.
In the embodiment of the present application, the base station is that one kind is deployed in wireless access network to provide radio communication work(for UE
The device of energy.The base station can include various forms of macro base stations, micro-base station (also referred to as small station), relay station, access point etc..
In the system using different wireless access technologys, the title for possessing the equipment of base station functions may be different, for example,
In LTE system, the node B (evolved NodeB, eNB or eNodeB) of referred to as evolution, in the third generation (English：3rd
Generation, referred to as：3G) in system, referred to as node B (English：Node B) etc..For convenience of description, all implementations of the application
In example, the above-mentioned device that radio communication function is provided for UE is referred to as base station or BS.
Involved UE can include various handheld devices with radio communication function, vehicle-mounted in the embodiment of the present application
Equipment, wearable device, computing device or the other processing equipments for being connected to radio modem.The UE is referred to as
Mobile station (English：Mobile station, referred to as：MS), terminal (English：Terminal), terminal device (English：
Terminal equipment), subscriber unit (English can also be included：Subscriber unit), cell phone (English：
Cellular phone), smart phone (English：Smart phone), wireless data card, personal digital assistant (English：
Personal Digital Assistant, PDA) computer, plate computer, radio modem (English：Modem), hand
Holding equipment (English：Handset), laptop computer (English：Laptop computer), machine type communication (English：
Machine Type Communication, referred to as：MTC) terminal etc..For convenience of description, in all embodiments of the application, above
The equipment mentioned is referred to as UE.
Embodiment 1
The embodiment of the present application 1 provides a kind of transmission method of channel estimation sequence, and this method can apply to access point
And website, such as：Base station in AP and STA1-STA2, Fig. 2 and UE1-UE2 in Fig. 1.Fig. 3 is the flow chart of transmission method,
Comprise the following steps that：
Step 301：Generation physical layer protocol data unit PPDU, the PPDU include channel estimation field, the channel
Estimation field includes one or more channel estimation sequences, each channel estimation in one or more of channel estimation sequences
Sequence is converted to by channel estimation initiation sequence.
Step 302：Send the PPDU.
Specifically, the transmission method is applied to high-frequency wireless communication system, and the high frequency includes more than 6GHz frequency range.It is excellent
Selection of land, the transmission method can be applied to 28GHz frequency ranges or 60GHz frequency ranges.
Specifically, the PPDU includes leading part and payload part, as shown in figure 4, wherein leading part is short by tradition
Training field (English：Legacy Short Training Field, referred to as：L-STF) and conventional channel estimation field is (English：
Legacy Channel Estimate Field, referred to as：L-CEF) and conventional head field is (English：Legacy Header) and
Enhancing orients more gigabit head A fields (English：Enhanced Directional Multi-Gigabit Header A,
Abbreviation EDMG Header A) and the more gigabit short training fields of enhancing orientation are (referred to as：EDMG-STF) and enhancing orients more gigabits
Bit channel estimation field is (referred to as：EDMG-CEF) and enhancing orients more gigabit heads B field (abbreviation EDMG Header
B) form.
It should be noted that the channel estimation field in step 301 orients more gigabit channels for the enhancing in Fig. 4 and estimated
Count field (referred to as：EDMG-CEF), the channel estimation field is by supporting 802.11ay website to be used for channel estimation.In Fig. 4
L-CEF by support 802.11ad website be used for channel estimation.
It should be noted that 802.11ay supports the characteristic of multiple antennas (i.e. multiple empty time streams).Wherein it is based on 802.11ay
PPDU in the number of channel estimation sequence in channel estimation field be more than or equal to the space-time fluxion that the PPDU is supported.Lift
Example explanation, the emitter based on 802.11ay support two antennas, then channel in the PPDU that the 802.11ay emitters are sent
Estimation field includes two channel estimation sequences.Emitter based on 802.11ay supports three antennas, then the 802.11ay
Channel estimation field includes four channel estimation sequences in the PPDU that emitter is sent.
It should be noted that each channel estimation sequence described in step 301 in one or more channel estimation sequences
It is converted to by channel estimation initiation sequence.The conversion operation of channel estimation initiation sequence is included being mapped to different space-times
Stream, with P matrix multiples, the operation such as cyclic shift diversity and inverse discrete Fourier transform.Wherein, it is above-mentioned initial to channel estimation
The conversion operation of sequence is similar with the generating process of VHT-LTF in 802.11ac standards (very high-speed long training sequence), no
It is developed in details again.
Specifically, 11ay physical layer uses the sub-carrier number that OFDM is modulated as 512, the channel estimation initiation sequence
Length is 512.The channel estimation initiation sequence is frequency domain sequence, and is formed based on Gray Golay sequences, wherein Golay sequences
There is row good autocorrelation haracter to seek peace cross-correlation feature, can be used for channel estimation.
It should be noted that the Golay sequences in the application mainly use the sequences such as Ga32, Gb32, Ga16 and Gb16.
Wherein, Ga32=+1 ,+1 ,+1 ,+1 ,+1, -1 ,+1, -1, -1, -1 ,+1 ,+1 ,+1, -1, -1 ,+1 ,+1 ,+1, -
1,-1,+1,-1,-1,+1,-1,-1,-1,-1,+1,-1,+1,-1}。
Gb32=-1, -1, -1, -1, -1,1, -1,1,1,1, -1, -1, -1,1,1, -1,1,1, -1, -1,1, -1, -1,
1,-1,-1,-1,-1,1,-1,1,-1}。
Ga16={ -1, -1,1,1, -1,1,1, -1,1,1,1,1, -1,1, -1,1 }.
Gb16={ 1,1,1,1,1, -1,1, -1, -1, -1,1,1,1, -1, -1,1 }.
Alternatively, the channel estimation initiation sequence comprises at least implementation below：
Embodiment 1：{zeros(79),-Gb32,-Ga32,Gb32,Ga32,Gb32,-Gb16,0,0,0,
Ga16,-Ga32,Gb32,-Ga32,-Gb32,Ga32,zeros(78)}.Zeros (n) is expressed as individual zero compositions of n
Sequence, n are integer.
Specifically, the complete representation of embodiment 1 is：{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,-1,1,-1,-1,-1,1,1,1,-
1,-1,1,-1,-1,1,1,-1,1,1,-1,1,1,1,1,-1,1,-1,1,-1,-1,-1,-1,-1,1,-1,1,1,1,-1,-
1,-1,1,1,-1,-1,-1,1,1,-1,1,1,-1,1,1,1,1,-1,1,-1,1,-1,-1,-1,-1,-1,1,-1,1,1,1,-
1,-1,-1,1,1,-1,1,1,-1,-1,1,-1,-1,1,-1,-1,-1,-1,1,-1,1,-1,1,1,1,1,1,-1,1,-1,-
1,-1,1,1,1,-1,-1,1,1,1,-1,-1,1,-1,-1,1,-1,-1,-1,-1,1,-1,1,-1,-1,-1,-1,-1,-1,
1,-1,1,1,1,-1,-1,-1,1,1,-1,1,1,-1,-1,1,-1,-1,1,-1,-1,-1,-1,1,-1,1,-1,-1,-1,-
1,-1,-1,1,-1,1,1,1,-1,-1,-1,1,1,-1,0,0,0,-1,-1,1,1,-1,1,1,-1,1,1,1,1,-1,1,-1,
1,-1,-1,-1,-1,-1,1,-1,1,1,1,-1,-1,-1,1,1,-1,-1,-1,1,1,-1,1,1,-1,1,1,1,1,-1,
1,-1,1,-1,-1,-1,-1,-1,1,-1,1,1,1,-1,-1,-1,1,1,-1,1,1,-1,-1,1,-1,-1,1,-1,-1,-
1,-1,1,-1,1,-1,-1,-1,-1,-1,-1,1,-1,1,1,1,-1,-1,-1,1,1,-1,-1,-1,1,1,-1,1,1,-1,
1,1,1,1,-1,1,-1,1,1,1,1,1,1,-1,1,-1,-1,-1,1,1,1,-1,-1,1,-1,-1,1,1,-1,1,1,-1,
1,1,1,1,-1,1,-1,1,1,1,1,1,1,-1,1,-1,-1,-1,1,1,1,-1,-1,1,1,1,-1,-1,1,-1,-1,1,-
1,-1,-1,-1,1,-1,1,-1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0}。
Embodiment 2：{zeros(79),Gb32,Ga32,-Gb32,-Ga32,-Gb32,Gb16,0,0,0,-Ga16,
Ga32,-Gb32,Ga32,Gb32,-Ga32,zeros(78)}。
It should be noted that embodiment 1 and embodiment 2 are opposite polarity one group of sequence.Opposite polarity refers to sequence
+ 1 is changed into -1, -1 and is changed into+1 in row, and 0 is constant.
Embodiment 3：{zeros(79),Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32
(1:7),0,0,0,-Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Ga32(1:16),Ga32(17:23),
zeros(78)}。
Embodiment 4：{zeros(79),-Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:
7),0,0,0,Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Ga32(1:16),-Ga32(17:23),
zeros(78)}。
It should be noted that embodiment 3 and embodiment 4 are opposite polarity one group of sequence.
Embodiment 5：{zeros(79),Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32
(1:7),0,0,0,-Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Gb16,Ga32(17:23),zeros
(78)}。
Embodiment 6：{zeros(79),-Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:
7),0,0,0,Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Gb16,-Ga32(17:23),zeros
(78)}。
It should be noted that embodiment 5 and embodiment 6 are opposite polarity one group of sequence.
Embodiment 7：
{zeros(79),-Gb16,Ga16,-Gb16,-Ga16,Gb16,Ga16,-Gb16,-Ga16,-Gb16,-Ga16,-
Gb16,0,0,0,Ga16,-Gb16,Ga16,-Gb16,Ga16,Gb16,-Ga16,-Gb16,Ga16,Gb16,Ga16,zeros
(78)}
Embodiment 8：
{zeros(79),Gb16,-Ga16,Gb16,Ga16,-Gb16,-Ga16,Gb16,Ga16,Gb16,Ga16,Gb16,
0,0,0,-Ga16,Gb16,-Ga16,Gb16,-Ga16,-Gb16,Ga16,Gb16,-Ga16,-Gb16,-Ga16,zeros
(78)}
Wherein, embodiment 1 provides complete channel estimation initiation sequence, and embodiment 2-6, embodiment 7-8 pass through
Ga32, Ga16, Gb32 and Gb16 sequence can unambiguously obtain complete channel estimation initiation sequence, because length limits
System, no longer provides complete channel estimation initiation sequence.
It should be noted that the symbol of the payload part of the PPDU is using binary phase shift keying (English：Binary
Phase Shift Keying, referred to as：BPSK) modulation system, pi/2-BPSK modulation systems, orthogonal phase shift coding (English：
Quadrature Phase Shift Keying, referred to as：QPSK) modulation system, pi/2-QPSK or 16QAM (English：
Quadrature Amplitude Modulation, referred to as：QAM).
You need to add is that the action of receiver comprises at least following realization side in the transmission method of the channel estimation sequence
Formula.
Step 1：Receive physical layer protocol data unit PPDU, the PPDU and include channel estimation field, the channel is estimated
Meter field includes one or more channel estimation sequences, each channel estimation sequence in one or more of channel estimation sequences
Row are converted to by channel estimation initiation sequence.
Step 2：The PPDU is parsed, channel parameter is obtained by the channel estimation field.
It should be noted that receiver by parse the PPDU channel estimation field obtain channel parameter process with
Operation of the receiver to VHT-LTF sequences is similar in 802.11ac standards, repeats no more.
Summing-up, the embodiment of the present application 1 provides a kind of data transmission method of channel estimation sequence, the data transfer
Method includes generating and sending PPDU, and the PPDU includes channel estimation field, and wherein channel estimation field includes one or more
Channel estimation sequence, and each channel estimation sequence in one or more of channel estimation sequences is initial by channel estimation
Sequence is converted to, by the above-mentioned means, the PPDU based on the channel estimation field can support the characteristic of more spatial flows.And
And channel estimation initiation sequence is designed based on Golay sequences, it is possible to reduce extra storage resource.
Embodiment 2
A kind of schematic block diagram of the transmitting device for channel estimation sequence that the embodiment of the present application 2 provides, as shown in figure 5,
The device is, for example, access point, website, base station or UE, and the device can also be the application specific integrated circuit for realizing correlation function
(English：Application Specific Integrated Circuit, referred to as：) or chip ASIC.The device 1000 wraps
Include processor 1010, memory 1020, BBP 1030, transceiver 1040, antenna 1050, bus 1060 and user interface
1070.The device can be the base station and UE shown in the AP and STA, or Fig. 2 shown in Fig. 1.
Specifically, the operation of the control device 1000 of processor 1010, processor can be general processors, at data signal
Manage device, application specific integrated circuit, field programmable gate array or other PLDs.Memory 1020 can be included only
Memory and random access memory are read, and instruction and data is provided to processor 1010, a part for memory 1020 may be used also
With including nonvolatile RAM (NVRAM).Processor 1010 generally performs the programmed instruction in memory 1020,
Realize the logical operation and arithmetical operation of channel estimation sequence transmission method in the application.
BBP 1030 be used for generate baseband signal (such as：Frame or packet or PPDU), or to receiving
Baseband signal carries out parsing and obtains data, and wherein BBP includes encoder and modulator, and encoder can improve base band
The robustness of signal, overcome interference and decline in wireless propagation environment, reduce mistake caused by transmission.Modulator can basis
Wireless propagation environment, choose suitable signal modulation mode.
Transceiver 1040 includes transtation mission circuit and receiving circuit, and transtation mission circuit is used for the base band that BBP 1030 generates
Signal is modulated using up-conversion, obtains the carrier signal of high frequency, the carrier signal of high frequency is launched by antenna 1050, receiving circuit
The high-frequency signal that antenna 1050 is received uses down-conversion operation, obtains the baseband signal of low frequency.The wherein number of antenna 1050
For one or more.Device 1000 can also include user interface 1070, and user interface 1070 includes keyboard, sound pick-up and/or
Touch-screen.User interface 1070 can transmit content and control operation to access point 1000.
Each component of device 1000 is coupled by bus 1060, and wherein bus system 1060 is total except data are included
Outside line, in addition to power bus, controlling bus and status signal bus in addition.But for the sake of clear explanation, will be each in figure
Kind bus is all designated as bus system 1060.It should be noted that the above-mentioned description for access point structures, can be applied to follow-up
Embodiment.
BBP 1030, channel estimation word is included for generating physical layer protocol data unit PPDU, the PPDU
Section, the channel estimation field include one or more channel estimation sequences, in one or more of channel estimation sequences
Each channel estimation sequence is converted to by channel estimation initiation sequence.
Transceiver 1040, for sending the PPDU.
Specifically, the number of the channel estimation sequence in the channel estimation field is more than or equal to what the PPDU was supported
Space-time fluxion.
Specifically, the channel estimation field is by supporting 802.11ay website to be used for channel estimation.
It should be noted that the existing explaination in detail in embodiment 1 and Fig. 4 of the structure of the PPDU, is repeated no more.
Alternatively, the channel estimation initiation sequence specifically includes implementation below：
Embodiment 1：
{zeros(79),-Gb32,-Ga32,Gb32,Ga32,Gb32,-Gb16,0,0,0,Ga16,-Ga32,Gb32,-
Ga32 ,-Gb32, Ga32, zeros (78) }, zeros (n) is expressed as the sequence of n zero composition, and n is integer.
Embodiment 2：
{zeros(79),Gb32,Ga32,-Gb32,-Ga32,-Gb32,Gb16,0,0,0,-Ga16,Ga32,-Gb32,
Ga32,Gb32,-Ga32,zeros(78)}。
Embodiment 3：
{zeros(79),Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,
0,-Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Ga32(1:16),Ga32(17:23),zeros(78)}。
Embodiment 4：
{zeros(79),-Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,
Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Ga32(1:16),-Ga32(17:23),zeros(78)}。
Embodiment 5：
{zeros(79),Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,
0,-Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Gb16,Ga32(17:23),zeros(78)}。
Embodiment 6：
{zeros(79),-Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,
Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Gb16,-Ga32(17:23),zeros(78)}。
Embodiment 7：
{zeros(79),-Gb16,Ga16,-Gb16,-Ga16,Gb16,Ga16,-Gb16,-Ga16,-Gb16,-Ga16,-
Gb16,0,0,0,Ga16,-Gb16,Ga16,-Gb16,Ga16,Gb16,-Ga16,-Gb16,Ga16,Gb16,Ga16,zeros
(78)}
Embodiment 8：
{zeros(79),Gb16,-Ga16,Gb16,Ga16,-Gb16,-Ga16,Gb16,Ga16,Gb16,Ga16,Gb16,
0,0,0,-Ga16,Gb16,-Ga16,Gb16,-Ga16,-Gb16,Ga16,Gb16,-Ga16,-Gb16,-Ga16,zeros
(78)}
You need to add is that the action of receiver comprises at least following realization side in the transmitting device of the channel estimation sequence
Formula.
Step 1：Receive physical layer protocol data unit PPDU, the PPDU and include channel estimation field, the channel is estimated
Meter field includes one or more channel estimation sequences, each channel estimation sequence in one or more of channel estimation sequences
Row are converted to by channel estimation initiation sequence.
Step 2：The PPDU is parsed, channel parameter is obtained by the channel estimation field.
It should be noted that receiver by parse the PPDU channel estimation field obtain channel parameter process with
Operation of the receiver to VHT-LTF sequences is similar in 802.11ac standards, repeats no more.
Summing-up, the embodiment of the present application 2 provides a kind of transmitting device of channel estimation sequence, and the transmitting device includes
BBP and transceiver, wherein BBP are used to generate PPDU, and transceiver is used to send PPDU, and the PPDU includes letter
Field is estimated in road, and wherein channel estimation field includes one or more channel estimation sequences, and one or more of channels
Each channel estimation sequence in estimated sequence is converted to by channel estimation initiation sequence, by the above-mentioned means, being based on the letter
The PPDU of road estimation field can support the characteristic of more spatial flows.Also, channel estimation initiation sequence is entered based on Golay sequences
Row design, it is possible to reduce extra storage resource.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow
Software is helped to add the mode of required general hardware platform to realize, naturally it is also possible to which by hardware, but the former is in many cases
More preferably embodiment.Based on such understanding, technical scheme substantially contributes to prior art in other words
Part can be embodied in the form of software product, the computer software product is stored in the storage medium that can be read,
Such as the floppy disk of computer, hard disk or CD etc., including some instructions are make it that a computer equipment (can be individual calculus
Machine, server, or network equipment etc.) perform method described in each embodiment of the present invention.
Claims (18)
1. a kind of transmission method of channel estimation sequence, the wireless communication system applied to more than 6GHz, it is characterised in that described
Method includes：
Generation physical layer protocol data unit PPDU, the PPDU include channel estimation field, and the channel estimation field includes
One or more channel estimation sequences, each channel estimation sequence in one or more of channel estimation sequences are estimated by channel
Meter initiation sequence is converted to；
Send the PPDU.
2. according to the method for claim 1, it is characterised in that the channel estimation initiation sequence for zeros (79) ,-
Gb32,-Ga32,Gb32,Ga32,Gb32,-Gb16,0,0,0,Ga16,-Ga32,Gb32,
- Ga32 ,-Gb32, Ga32, zeros (78) }, zeros (n) is expressed as the sequence of n zero composition, and n is integer.
3. according to the method for claim 1, it is characterised in that the channel estimation initiation sequence for zeros (79),
Gb32,Ga32,-Gb32,-Ga32,-Gb32,Gb16,0,0,0,-Ga16,Ga32,-Gb32,
Ga32,Gb32,-Ga32,zeros(78)}。
4. according to the method for claim 1, it is characterised in that the channel estimation initiation sequence for zeros (79),
Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,
-Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Ga32(1:16),Ga32(17:23),
zeros(78)}。
5. according to the method for claim 1, it is characterised in that the channel estimation initiation sequence for zeros (79) ,-
Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,
Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Ga32(1:16),-Ga32(17:23),
zeros(78)}。
6. according to the method for claim 1, it is characterised in that the channel estimation initiation sequence for zeros (79),
Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,
-Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Gb16,Ga32(17:23),zeros(78)}。
7. according to the method for claim 1, it is characterised in that the channel estimation initiation sequence for zeros (79) ,-
Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,
Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Gb16,-Ga32(17:23),zeros(78)}。
8. according to any described methods of claim 1-7, it is characterised in that the channel estimation sequence in the channel estimation field
The number of row is more than or equal to the space-time fluxion that the PPDU is supported.
9. according to any described methods of claim 1-8, it is characterised in that the channel estimation field is by supporting 802.11ay
Website be used for channel estimation.
10. a kind of transmitting device of channel estimation sequence, the wireless communication system applied to more than 6GHz, it is characterised in that institute
Stating device includes：
BBP, channel estimation field, the letter are included for generating physical layer protocol data unit PPDU, the PPDU
Estimation field in road includes one or more channel estimation sequences, and each channel in one or more of channel estimation sequences is estimated
Meter sequence is converted to by channel estimation initiation sequence；
Transceiver, for sending the PPDU.
11. device according to claim 10, it is characterised in that the channel estimation initiation sequence is
{zeros(79),-Gb32,-Ga32,Gb32,Ga32,Gb32,-Gb16,0,0,0,Ga16,-Ga32,Gb32,-Ga32,-
Gb32, Ga32, zeros (78) }, zeros (n) is expressed as the sequence of n zero composition, and n is integer.
12. device according to claim 10, it is characterised in that the channel estimation initiation sequence is
{zeros(79),Gb32,Ga32,-Gb32,-Ga32,-Gb32,Gb16,0,0,0,-Ga16,Ga32,-Gb32,Ga32,
Gb32,-Ga32,zeros(78)}。
13. device according to claim 10, it is characterised in that the channel estimation initiation sequence is
{zeros(79),Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,
-Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Ga32(1:16),Ga32(17:23),
zeros(78)}。
14. device according to claim 10, it is characterised in that the channel estimation initiation sequence is
{zeros(79),-Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,Gb32(8:
32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Ga32(1:16),-Ga32(17:23),zeros(78)}。
15. device according to claim 10, it is characterised in that the channel estimation initiation sequence is
{zeros(79),Ga32(24:32),-Gb32,-Gb32,Ga32,-Ga32,-Ga32,-Gb32(1:7),0,0,0,-
Gb32(8:32),Ga32,-Gb32,Gb16,-Ga16,Gb32,Gb16,Ga32(17:23),zeros(78)}。
16. device according to claim 10, it is characterised in that the channel estimation initiation sequence is
{zeros(79),-Ga32(24:32),Gb32,Gb32,-Ga32,Ga32,Ga32,Gb32(1:7),0,0,0,
Gb32(8:32),-Ga32,Gb32,-Gb16,Ga16,-Gb32,-Gb16,-Ga32(17:23),zeros(78)}。
17. according to any described devices of claim 10-16, it is characterised in that the channel in the channel estimation field is estimated
The number for counting sequence is more than or equal to the space-time fluxion that the PPDU is supported.
18. according to any described devices of claim 10-17, it is characterised in that the channel estimation field is by supporting
802.11ay website be used for channel estimation.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641971A (en) * | 2019-03-01 | 2020-09-08 | 华为技术有限公司 | Data transmission method, device and system |
| WO2023109773A1 (en) * | 2021-12-13 | 2023-06-22 | 华为技术有限公司 | Signal processing method and apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484522A (en) * | 2009-09-09 | 2012-05-30 | Lg电子株式会社 | Method And Apparatus For Transmitting Control Information In Wlan System |
| CN103138870A (en) * | 2011-11-22 | 2013-06-05 | 华为技术有限公司 | Data transmission method and data transmission device |
| WO2013169389A1 (en) * | 2012-05-09 | 2013-11-14 | Interdigital Patent Holdings, Inc. | Multi-user multiple input multiple output communications in wireless local area networks and wireless transmit and receive units |
| CN104205714A (en) * | 2012-01-06 | 2014-12-10 | 高通股份有限公司 | Systems and methods for wireless communication of long data units |
| CN104410479A (en) * | 2014-10-15 | 2015-03-11 | 江苏中兴微通信息科技有限公司 | Data communication method supporting single carrier two types of bandwidth of multiple input multiple output (MIMO) communication system |
-
2016
- 2016-09-06 CN CN201610805100.0A patent/CN107592142B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484522A (en) * | 2009-09-09 | 2012-05-30 | Lg电子株式会社 | Method And Apparatus For Transmitting Control Information In Wlan System |
| CN103138870A (en) * | 2011-11-22 | 2013-06-05 | 华为技术有限公司 | Data transmission method and data transmission device |
| CN104205714A (en) * | 2012-01-06 | 2014-12-10 | 高通股份有限公司 | Systems and methods for wireless communication of long data units |
| WO2013169389A1 (en) * | 2012-05-09 | 2013-11-14 | Interdigital Patent Holdings, Inc. | Multi-user multiple input multiple output communications in wireless local area networks and wireless transmit and receive units |
| CN104410479A (en) * | 2014-10-15 | 2015-03-11 | 江苏中兴微通信息科技有限公司 | Data communication method supporting single carrier two types of bandwidth of multiple input multiple output (MIMO) communication system |
Non-Patent Citations (1)
| Title |
|---|
| IEEE COMPUTER SOCIETY: "Part 11: Wireless LAN Medium Access Control(MAC) and Physical Layer (PHY) Specifications，Amendment 4: Enhancements for Very High Throughput for Operation in Bands below 6 GHz", 《IEEE STANDARD FOR INFORMATION TECHNOLOGY-TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS LOCAL AND METROPOLITAN AREA NETWORKS-SPECIFIC REQUIREMENTS》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641971A (en) * | 2019-03-01 | 2020-09-08 | 华为技术有限公司 | Data transmission method, device and system |
| WO2020177648A1 (en) * | 2019-03-01 | 2020-09-10 | 华为技术有限公司 | Data transmission method, apparatus, and system |
| US11831398B2 (en) | 2019-03-01 | 2023-11-28 | Huawei Technologies Co., Ltd. | Data transmission method, apparatus, and system |
| CN111641971B (en) * | 2019-03-01 | 2024-04-12 | 华为技术有限公司 | Data transmission method, device and system |
| WO2023109773A1 (en) * | 2021-12-13 | 2023-06-22 | 华为技术有限公司 | Signal processing method and apparatus |
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