WO2021043111A1 - 数据传输方法及装置 - Google Patents
数据传输方法及装置 Download PDFInfo
- Publication number
- WO2021043111A1 WO2021043111A1 PCT/CN2020/112666 CN2020112666W WO2021043111A1 WO 2021043111 A1 WO2021043111 A1 WO 2021043111A1 CN 2020112666 W CN2020112666 W CN 2020112666W WO 2021043111 A1 WO2021043111 A1 WO 2021043111A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sub
- band
- frequency band
- frequency domain
- frequency
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2603—Signal structure ensuring backward compatibility with legacy system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
Definitions
- This application relates to the field of communication technology, and in particular to data transmission methods and devices.
- the 802.11 standard is a general standard for wireless local area network (WLAN).
- WLAN wireless local area network
- IEEE Institute of Electrical and Electronics Engineers
- EHT extremely high throughput
- next-generation 802.11 standard needs to support a larger bandwidth, such as 320 megahertz (MHz) or 160+160 MHz.
- a larger bandwidth such as 320 megahertz (MHz) or 160+160 MHz.
- 320 MHz or 160+160 MHz bandwidth sub-carrier distribution (tone plan) proposed in the industry has low spectrum utilization.
- This application provides a data transmission method and device, which are used to improve the spectrum utilization of a frequency band with a bandwidth of 320 MHz or 160+160 MHz.
- a data transmission method including: a communication device transmits a physical layer protocol data unit (PPDU) on a first frequency band, and the bandwidth of the first frequency band is 320 MHz or 160+160 MHz, and the first frequency band
- a frequency band includes a first frequency domain resource and a second frequency domain resource.
- the first frequency domain resource includes four sub-bands. Each sub-band of the four sub-bands includes X sub-carriers. X is a positive integer greater than or equal to 996.
- the frequency domain resources include Y data and pilot subcarriers, and Y is a positive integer greater than 52. Based on the technical solution of the present application, the first frequency band has more data and pilot subcarriers, so that the first frequency band can carry more data, thereby improving the spectrum utilization of the first frequency band.
- the method further includes: the communication device generates the PPDU.
- the communication device transmitting the PPDU on the first frequency band includes: the communication device transmitting the PPDU on the first frequency band.
- the communication device transmitting the PPDU on the first frequency band includes: the communication device receives the PPDU on the first frequency band. After the communication device transmits the PPDU on the first frequency band, the method further includes: the communication device parses the PPDU.
- the second frequency domain resource includes a first resource unit (resource unit, RU), a second RU, and a third RU, and the first RU, the second RU, and the third RU increase sequentially in the frequency spectrum ,
- the first RU, the second RU, and the third RU all include 26 data and pilot subcarriers.
- the four sub-bands include a first sub-band, a second sub-band, a third sub-band, and a fourth sub-band, where the first sub-band, the second sub-band, the third sub-band, and the fourth sub-band
- the four sub-bands increase sequentially in the frequency spectrum.
- the first sub-band is located between the first RU and the second sub-band
- the second RU is located between the second sub-band and the third sub-band
- the fourth sub-band is located between the third and the third sub-band.
- the subcarriers included in the first RU are equivalent to guard subcarriers, thereby increasing the number of guard subcarriers, and helping to reduce the complexity of implementing the filter.
- the subcarriers included in the third RU are equivalent to guard subcarriers, thereby increasing the number of guard subcarriers, and helping to reduce the complexity of filter implementation.
- the first frequency band further includes a direct current (DC) area
- the second RU includes the first 13 RU and the last 13 RU
- the DC area is located between the first 13 RU and the last 13 RU.
- the DC region includes 5 DC subcarriers.
- the first frequency band further includes 15 guard subcarriers, where the first RU is located between the 15 guard subcarriers and the first subband.
- the first frequency band further includes 14 guard subcarriers
- the third RU is located between the 14 guard subcarriers and the fourth subband.
- the first RU is located between the first subband and the second subband
- the second RU is located between the second subband and the third subband
- the third RU is located between the third subband and the fourth subband.
- the sub-carriers included in the first RU are equivalent to empty sub-carriers, thereby increasing the number of empty sub-carriers between the first sub-band and the second sub-band, which is beneficial to Protection between the first sub-band and the second sub-band.
- the sub-carriers included in the third RU are equivalent to empty sub-carriers, thereby increasing the number of empty sub-carriers between the third sub-band and the fourth sub-band, which is beneficial to the first Protection between the third sub-band and the fourth sub-band.
- the first frequency band further includes one or more null subcarriers, and the one or more null subcarriers are located between the first RU and the first subband.
- the first frequency band includes 13 guard subcarriers, and the first subband is located between the first RU and the 13 guard subcarriers.
- the first frequency band includes 12 guard subcarriers
- the fourth subband is located between the third RU and the 12 guard subcarriers.
- the first frequency band also includes a DC area
- the second RU includes the first 13 RU and the last 13 RU
- the DC area is located between the first 13 RU and the last 13 RU.
- the DC region includes 5 DC subcarriers.
- the first RU is located between the second RU and the second sub-band
- the second RU is located between the first RU and the third RU
- the third RU is located between the second RU and the third sub-band .
- the first frequency band further includes 12 guard sub-carriers, and the first sub-band is located between the 12 guard sub-carriers and the second sub-band.
- the first frequency band further includes 11 guard sub-carriers
- the fourth sub-band is located between the 11 guard sub-carriers and the third sub-band.
- the first frequency band also includes a DC area
- the second RU includes the first 13 RU and the last 13 RU
- the DC area is located between the first 13 RU and the last 13 RU.
- the DC region includes 11 DC subcarriers.
- a communication device including: a communication module, configured to transmit a physical layer protocol data unit PPDU in a first frequency band, the bandwidth of the first frequency band is 320 MHz or 160+160 MHz, and the first frequency band includes the first frequency Domain resources and second frequency domain resources.
- the first frequency domain resource includes four sub-bands, each of the four sub-bands includes X sub-carriers, where X is a positive integer greater than or equal to 996, and the second frequency domain resource includes Y Data and pilot subcarriers, Y is a positive integer greater than 52.
- the communication device further includes: a processing module.
- the processing module is used to generate PPDU.
- the communication module is specifically configured to send PPDUs on the first frequency band.
- the communication device further includes: a processing module.
- the communication module is specifically configured to receive PPDUs on the first frequency band.
- the processing module is specifically used to parse the PPDU.
- the second frequency domain resource includes a first RU, a second RU, and a third RU.
- the first RU, the second RU, and the third RU increase sequentially in the frequency spectrum.
- Both the RU and the third RU include 26 data and pilot subcarriers.
- the four sub-bands include a first sub-band, a second sub-band, a third sub-band, and a fourth sub-band, where the first sub-band, the second sub-band, the third sub-band, and the fourth sub-band
- the four sub-bands increase sequentially in the frequency spectrum.
- the first sub-band is located between the first RU and the second sub-band
- the second RU is located between the second sub-band and the third sub-band
- the fourth sub-band is located between the third and the third sub-band.
- the first frequency band also includes a DC area
- the second RU includes the first 13 RU and the last 13 RU
- the DC area is located between the first 13 RU and the last 13 RU.
- the DC region includes 5 DC subcarriers.
- the first frequency band further includes 15 guard subcarriers, where the first RU is located between the 15 guard subcarriers and the first subband.
- the first frequency band further includes 14 guard subcarriers
- the third RU is located between the 14 guard subcarriers and the fourth subband.
- the first RU is located between the first subband and the second subband
- the second RU is located between the second subband and the third subband
- the third RU is located between the third subband and the fourth subband. Between sub-bands.
- the first frequency band further includes one or more null subcarriers, and the one or more null subcarriers are located between the first RU and the first subband.
- the first frequency band includes 13 guard subcarriers, and the first subband is located between the first RU and the 13 guard subcarriers.
- the first frequency band includes 12 guard subcarriers
- the fourth subband is located between the third RU and the 12 guard subcarriers.
- the first frequency band also includes a DC area
- the second RU includes the first 13 RU and the last 13 RU
- the DC area is located between the first 13 RU and the last 13 RU.
- the DC region includes 5 DC subcarriers.
- the first RU is located between the second RU and the second sub-band
- the second RU is located between the first RU and the third RU
- the third RU is located between the second RU and the third sub-band .
- the first frequency band further includes 12 guard sub-carriers, and the first sub-band is located between the 12 guard sub-carriers and the second sub-band.
- the first frequency band further includes 11 guard sub-carriers
- the fourth sub-band is located between the 11 guard sub-carriers and the third sub-band.
- the first frequency band also includes a DC area
- the second RU includes the first 13 RU and the last 13 RU
- the DC area is located between the first 13 RU and the last 13 RU.
- the DC region includes 11 DC subcarriers.
- a communication device in a third aspect, includes a communication interface configured to transmit a physical layer protocol data unit PPDU on a first frequency band.
- the bandwidth of the first frequency band is 320 MHz or 160+160 MHz.
- a frequency band includes a first frequency domain resource and a second frequency domain resource.
- the first frequency domain resource includes four sub-bands. Each sub-band of the four sub-bands includes X sub-carriers. X is a positive integer greater than or equal to 996.
- the frequency domain resources include Y data and pilot subcarriers, and Y is a positive integer greater than 52.
- the communication device further includes a processor, and the processor is configured to generate a PPDU.
- the communication interface is specifically used to send PPDUs on the first frequency band.
- the communication device further includes a processor.
- the communication interface is specifically configured to receive PPDUs on the first frequency band.
- the processor is specifically configured to parse PPDU.
- the communication device is used to execute the data transmission method involved in any one of the designs in the first aspect described above.
- a computer-readable storage medium is provided, and the computer-readable storage medium is used to store instructions.
- the computer is used to execute the data transmission method involved in any of the above-mentioned first aspects.
- a computer program product includes instructions. When the instructions are read by a computer, the computer is used to execute the data transmission method involved in any of the designs in the first aspect.
- a chip in a sixth aspect, includes a transceiver pin, the transceiver pin is used to transmit a physical layer protocol data unit PPDU in a first frequency band, and the bandwidth of the first frequency band is 320MHz or 160+ 160 MHz, the first frequency band includes a first frequency domain resource and a second frequency domain resource, the first frequency domain resource includes four sub-bands, each of the four sub-bands includes X sub-carriers, and X is A positive integer greater than or equal to 996, the second frequency domain resource includes Y data and pilot subcarriers, and Y is a positive integer greater than 52.
- the chip further includes: a processing circuit, which is used to generate a PPDU.
- the transceiver pin is used to send the PPDU on the first frequency band.
- the chip further includes a processing circuit
- the transceiver pin is used to receive the PPDU in the first frequency band
- the processing circuit is used to parse the PPDU.
- the chip is used to execute the data transmission method involved in any one of the above-mentioned designs in the first aspect.
- the technical effects brought about by any one of the designs of the second aspect to the sixth aspect can refer to the beneficial effects in the corresponding method provided above, which will not be repeated here.
- This application also provides a frequency domain resource indication method and device, which are used to balance the spectrum utilization and data transmission complexity of a frequency band with a bandwidth of 320 MHz or 160+160 MHz.
- a method for indicating frequency domain resources including: a sending end generates a first frame, the first frame includes first indication information, and the first indication information is used to indicate a second frequency domain resource in a first frequency band Whether part or all of the frequency domain resources are used to carry data; the bandwidth of the first frequency band is 320MHz or 160+160MHz, the first frequency band includes the first frequency domain resource and the second frequency domain resource, and the first frequency domain resource includes four Each of the four sub-bands includes X sub-carriers, X is a positive integer greater than or equal to 996, and the second frequency domain resource includes Y data and pilot sub-carriers, and Y is a positive integer.
- the sender sends the first frame.
- the sending end sends the first frame to the receiving end to flexibly indicate whether a part or all of the second frequency domain resources in the first frequency band are used to carry data. That is, the sending end may send the first frame to the receiving end to indicate that part or all of the frequency domain resources in the second frequency domain resources are used to carry data when the spectrum utilization ratio needs to be prioritized, thereby improving the first frame.
- the frequency spectrum utilization of the frequency band may be used to indicate that the second frequency domain resource is not used to carry data when the complexity of data transmission needs to be given priority.
- the sender/receiver can reuse the existing operation on the 80 MHz frequency band and transmit PPDUs on the first frequency band, thereby reducing the complexity of data transmission.
- the value of the first indication information when the value of the first indication information is the first value, it means that all frequency domain resources of the second frequency domain resource in the first frequency band are used to carry data; the value of the first indication information is When the second value is taken, it indicates that the second frequency domain resource in the first frequency band is not used to carry data.
- the first indication information may include N bits, and the N bits correspond to the N RUs in the second frequency domain resource one-to-one, and , A bit is used to indicate whether the RU corresponding to the bit is used to carry data.
- the first frame is EHT PPDU.
- the first indication information may be carried in the extremely high throughput signaling field A (EHT-SIG-A) in the first frame.
- the first frame is the trigger frame.
- the first indication information may be located in the public domain in the first frame.
- a method for indicating frequency domain resources including: a receiving end receives a first frame, the first frame including first indication information, and the first indication information is used to indicate a second frequency domain resource in a first frequency band Whether part or all of the frequency domain resources are used to carry data; the bandwidth of the first frequency band is 320MHz or 160+160MHz, the first frequency band includes the first frequency domain resource and the second frequency domain resource, and the first frequency domain resource includes four Each of the four sub-bands includes X sub-carriers, X is a positive integer greater than or equal to 996, and the second frequency domain resource includes Y data and pilot sub-carriers, and Y is a positive integer.
- the receiving end receives/transmits data according to the first frame.
- the value of the first indication information when the value of the first indication information is the first value, it means that all frequency domain resources of the second frequency domain resource in the first frequency band are used to carry data; the value of the first indication information is When the second value is taken, it indicates that the second frequency domain resource in the first frequency band is not used to carry data.
- the first indication information may include N bits, and the N bits correspond to the N RUs in the second frequency domain resource one-to-one, and , A bit is used to indicate whether the RU corresponding to the bit is used to carry data.
- the first frame is EHT PPDU.
- the first indication information may be carried in the EHT-SIG-A in the first frame.
- the first frame is the trigger frame.
- the first indication information may be located in the public domain in the first frame.
- a communication device including: a processing module and a communication module.
- the processing module is configured to generate a first frame, the first frame includes first indication information, and the first indication information is used to indicate whether a part or all of the second frequency domain resources in the first frequency band are used.
- the bandwidth of the first frequency band is 320MHz or 160+160MHz
- the first frequency band includes the first frequency domain resource and the second frequency domain resource
- the first frequency domain resource includes four sub-bands, each of the four sub-bands
- the sub-band includes X sub-carriers, X is a positive integer greater than or equal to 996
- the second frequency domain resource includes Y data and pilot sub-carriers
- Y is a positive integer.
- the communication module is used to send the first frame.
- the value of the first indication information when the value of the first indication information is the first value, it means that all frequency domain resources of the second frequency domain resource in the first frequency band are used to carry data; the value of the first indication information is When the second value is taken, it indicates that the second frequency domain resource in the first frequency band is not used to carry data.
- the first indication information may include N bits, and the N bits correspond to the N RUs in the second frequency domain resource one-to-one, and , A bit is used to indicate whether the RU corresponding to the bit is used to carry data.
- the first frame is EHT PPDU.
- the first indication information may be carried in the EHT-SIG-A in the first frame.
- the first frame is the trigger frame.
- the first indication information may be located in the public domain in the first frame.
- a communication device including: a communication module.
- the communication module is used to receive the first frame; and, according to the first frame, receive/send data.
- the first frame includes first indication information, which is used to indicate whether a part or all of the second frequency domain resources in the first frequency band are used to carry data; the bandwidth of the first frequency band is 320 MHz Or 160+160MHz, the first frequency band includes the first frequency domain resource and the second frequency domain resource, the first frequency domain resource includes four subbands, each of the four subbands includes X subcarriers, and X is greater than or equal to 996
- the second frequency domain resource includes Y data and pilot subcarriers, and Y is a positive integer.
- the value of the first indication information when the value of the first indication information is the first value, it means that all frequency domain resources of the second frequency domain resource in the first frequency band are used to carry data; the value of the first indication information is When the second value is taken, it indicates that the second frequency domain resource in the first frequency band is not used to carry data.
- the first indication information may include N bits, and the N bits correspond to the N RUs in the second frequency domain resource one-to-one, and , A bit is used to indicate whether the RU corresponding to the bit is used to carry data.
- the first frame is EHT PPDU.
- the first indication information may be carried in the EHT-SIG-A in the first frame.
- the first frame is the trigger frame.
- the first indication information may be located in the public domain in the first frame.
- a communication device including a processor and a communication interface.
- the processor is configured to generate a first frame, the first frame including first indication information, and the first indication information is used to indicate whether a part or all of the second frequency domain resources in the first frequency band are used.
- the bandwidth of the first frequency band is 320MHz or 160+160MHz
- the first frequency band includes the first frequency domain resource and the second frequency domain resource
- the first frequency domain resource includes four sub-bands, each of the four sub-bands
- the sub-band includes X sub-carriers, X is a positive integer greater than or equal to 996
- the second frequency domain resource includes Y data and pilot sub-carriers
- Y is a positive integer.
- the communication interface is used to send the first frame.
- the communication device is used to implement the frequency domain resource indication method involved in any of the designs of the seventh aspect.
- a communication device including a processor and a communication interface.
- the communication interface is configured to receive a first frame, and the first frame includes first indication information, and the first indication information is used to indicate whether a part or all of the second frequency domain resources in the first frequency band are used.
- the bandwidth of the first frequency band is 320MHz or 160+160MHz
- the first frequency band includes the first frequency domain resource and the second frequency domain resource
- the first frequency domain resource includes four sub-bands, each of the four sub-bands
- the sub-band includes X sub-carriers, X is a positive integer greater than or equal to 996
- the second frequency domain resource includes Y data and pilot sub-carriers, and Y is a positive integer.
- the processor is configured to determine a frequency domain resource used to carry data according to the first frame.
- the communication interface is also used to receive/send data on frequency domain resources used to carry data.
- the communication device is used to execute the frequency domain resource indication method involved in any one of the designs of the eighth aspect described above.
- a computer-readable storage medium is provided, and the computer-readable storage medium is used to store instructions.
- the computer is used to execute the frequency domain resource indication method involved in any design of the seventh aspect or the eighth aspect.
- a computer program product is provided, and a computer-readable storage medium is provided, and the computer-readable storage medium is used to store instructions.
- the computer is used to execute the frequency domain resource indication method involved in any design of the seventh aspect or the eighth aspect.
- a chip including a processing circuit and transceiver pins.
- the processing circuit is configured to generate a first frame, the first frame includes first indication information, and the first indication information is used to indicate whether a part or all of the second frequency domain resources in the first frequency band are used.
- the bandwidth of the first frequency band is 320MHz or 160+160MHz
- the first frequency band includes the first frequency domain resource and the second frequency domain resource
- the first frequency domain resource includes four sub-bands, each of the four sub-bands
- the sub-band includes X sub-carriers, X is a positive integer greater than or equal to 996
- the second frequency domain resource includes Y data and pilot sub-carriers, and Y is a positive integer.
- Transceiver pin used to send the first frame.
- a chip which includes a processing circuit and transceiver pins.
- the transceiver pins are used to receive a first frame, and the first frame includes first indication information.
- the first indication information is used to indicate whether a part or all of the second frequency domain resources in the first frequency band are Used to carry data; the bandwidth of the first frequency band is 320MHz or 160+160MHz, the first frequency band includes the first frequency domain resource and the second frequency domain resource, the first frequency domain resource includes four sub-bands, each of the four sub-bands One subband includes X subcarriers, where X is a positive integer greater than or equal to 996, and the second frequency domain resource includes Y data and pilot subcarriers, and Y is a positive integer.
- the processing circuit is configured to determine the frequency domain resource used to carry the data according to the first frame.
- the transceiver pins are also used to receive/send data on frequency domain resources used to carry data.
- the technical effects brought about by any one of the ninth aspect to the sixteenth aspect can refer to the beneficial effects in the corresponding method provided above, which will not be repeated here.
- FIG. 1 is a schematic diagram of the distribution of sub-carriers in the 20 MHz frequency band in the prior art
- FIG. 2 is a schematic diagram of the distribution of subcarriers in the 40MHz frequency band in the prior art
- Fig. 3 is a schematic diagram of sub-carrier distribution in the 80 MHz frequency band in the prior art
- Fig. 4 is a schematic diagram of sub-carrier distribution in the 160 MHz frequency band in the prior art
- FIG. 5 is a schematic diagram of the distribution of subcarriers in the first frequency band in the prior art
- FIG. 6 is a schematic diagram of a second seed carrier distribution provided by an embodiment of this application.
- FIG. 7 is a schematic diagram of another second seed carrier distribution provided by an embodiment of this application.
- FIG. 8 is a schematic diagram of a third seed carrier distribution provided by an embodiment of this application.
- FIG. 9 is a schematic diagram of another third seed carrier distribution provided by an embodiment of this application.
- FIG. 10 is a schematic diagram of another third seed carrier distribution provided by an embodiment of this application.
- FIG. 11 is a schematic diagram of a fourth seed carrier distribution provided by an embodiment of this application.
- FIG. 12 is a schematic diagram of another fourth seed carrier distribution provided by an embodiment of this application.
- FIG. 13 is a schematic diagram of another fourth seed carrier distribution provided by an embodiment of this application.
- FIG. 14 is a schematic diagram of another fourth seed carrier distribution provided by an embodiment of this application.
- FIG. 15 is a flowchart of a data transmission method provided by an embodiment of this application.
- FIG. 16 is a flowchart of a method for indicating frequency domain resources according to an embodiment of this application.
- FIG. 17 is a schematic diagram of a PPDU frame structure provided by an embodiment of the application.
- FIG. 18 is a schematic diagram of an EHT-SIG-B provided by an embodiment of this application.
- FIG. 19 is a schematic diagram of a frame structure of a trigger frame provided by an embodiment of this application.
- FIG. 20 is a schematic diagram of a frame structure of a trigger frame provided by an embodiment of this application.
- FIG. 21 is a schematic structural diagram of a communication device provided by an embodiment of this application.
- FIG. 22 is a schematic structural diagram of a communication device provided by an embodiment of this application.
- A/B can mean A or B.
- “And/or” in this article is only an association relationship describing the associated objects, which means that there can be three kinds of relationships.
- a and/or B can mean: A alone exists, A and B exist at the same time, and B exists alone. These three situations.
- “at least one” means one or more, and “plurality” means two or more.
- the words “first” and “second” do not limit the quantity and order of execution, and the words “first” and “second” do not limit the difference.
- indication may include direct indication and indirect indication, as well as explicit indication and implicit indication.
- the information indicated by a certain piece of information (the first indication information described below) is called information to be instructed.
- the information to be indicated may be directly indicated, wherein the information to be indicated itself or the index of the information to be indicated, etc.
- the information to be indicated may also be indicated indirectly by indicating other information, where there is an association relationship between the other information and the information to be indicated.
- GSM global system of mobile communication
- CDMA code division multiple access
- WCDMA broadband code division multiple access
- GPRS general packet radio service
- LTE long term evolution
- FDD frequency division duplex
- TDD LTE Time division duplex
- UMTS universal mobile telecommunication system
- WiMAX worldwide interoperability for microwave access
- the technical solution provided in this application can also be applied to WLAN scenarios, can be applied to IEEE 802.11 system standards, such as the next generation or next-generation standards of the IEEE 802.11ax standard, and can also be applied to including but not limited to the Internet of Things (Internet of Things). of things (IoT) network or vehicle to X (V2X) network and other wireless local area network systems.
- the applicable scenarios of the technical solution of the present application include: communication between an access point (AP) and a station (station, STA), communication between an AP and an AP, and communication between a STA and a STA, etc.
- the station STA involved in this application can be a variety of user terminals, user devices, access devices, subscriber stations, subscriber units, mobile stations, user agents, user equipment or other names with wireless communication functions.
- user terminals can include Various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of user equipment (UE), mobile station (MS) ), terminal, terminal equipment, portable communication device, handset, portable computing device, entertainment device, game device or system, global positioning system device or any other device configured to communicate via a wireless medium Appropriate equipment, etc.
- UE user equipment
- MS mobile station
- terminal equipment portable communication device
- handset portable computing device
- entertainment device entertainment device
- game device or system global positioning system device or any other device configured to communicate via a wireless medium Appropriate equipment, etc.
- the devices mentioned above are collectively referred to as stations or STAs.
- the access point AP involved in this application is a device deployed in a wireless communication network to provide wireless communication functions for its associated STAs.
- the access point AP can be used as the hub of the communication system and can be a base station or a router. , Gateways, repeaters, communication servers, switches or bridges and other communication equipment, where the base stations may include various forms of macro base stations, micro base stations, relay stations, etc.
- the above-mentioned devices are collectively referred to as an access point AP.
- Frequency band is a frequency domain resource.
- the frequency band may have other names, such as channel, frequency band, etc., and the embodiment of the present application is not limited thereto.
- the WLAN system defines the bandwidth size of multiple frequency bands, such as 20MHz, 40MHz, 80MHz, 160MHz, 320MHz, or 160+160MHz.
- a frequency band with a bandwidth of x may be referred to as an xMHz frequency band for short.
- the 320MHz frequency band refers to a frequency band with a bandwidth of 320MHz.
- the 320MHz frequency band and the 160+160MHz frequency band are collectively referred to as the first frequency band hereinafter.
- the 160+160MHz frequency band refers to a frequency band composed of two discontinuous 160MHz sub-bands.
- the first frequency band when the sub-carrier interval is 78.125 KHz, the first frequency band may include 4096 sub-carriers. Taking the number of the subcarrier located in the center of the first frequency band as 0, the number of the subcarrier included in the first frequency band may be [-2048:2047].
- the RU is a frequency domain resource, and the RU includes one or more subcarriers (tones).
- the WLAN system defines the following types of RUs: 26-tone RU (that is, one RU contains 26 subcarriers), 52-tone RU (that is, one RU contains 52 subcarriers), and 106-tone RU (that is, one RU Contains 106 subcarriers), 242-tone RU (that is, one RU contains 242 subcarriers), 484-tone RU (that is, one RU contains 484 subcarriers), 996-tone RU (that is, one RU contains 996 subcarriers) Wait.
- a subcarrier is a frequency domain resource.
- Subcarriers include null subcarriers, data and pilot subcarriers, guard subcarriers, and DC subcarriers.
- Subcarrier distribution refers to the way of resource division on frequency bands. It should be noted that frequency bands have corresponding subcarrier distributions under different bandwidths.
- the following describes the distribution of sub-carriers under different bandwidths in the 802.11ax standard.
- the 20MHz frequency band includes 256 subcarriers.
- the 20MHz frequency band can support 26-tone RU, 52-tone RU, 106-tone RU, and 242-tone RU.
- the 20MHz frequency band may include a 242-tone RU.
- the 20MHz frequency band may include one or more 26-tone RUs, one or more 52-tone RUs, and/or one or more 106-tone RUs.
- the 20MHZ frequency band may include 9 26-tone RUs.
- the 20MHz frequency band may include four 52-tone RUs and one 26-tone RU.
- the 20MHz frequency band may include two 106-tone RUs and one 26-tone RU.
- the 20MHz frequency band may include one 242-tone RU.
- the 20MHz frequency band may include 5 26-tone RUs and 2 52-tone RUs.
- the 40MHz frequency band includes 512 subcarriers.
- the 40MHz frequency band can support 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, and 484-tone RU.
- the 40MHz frequency band may include a 484-tone RU.
- the 40MHz frequency band may include one or more 26-tone RUs, one or more 52-tone RUs, one or more 106-tone RUs, and/or one or more 242-tone RUs.
- the 40Mhz frequency band may include 18 26-tone RUs.
- the 40MHz frequency band may include 8 52-tone RUs and 2 26-tone RUs.
- the 40MHz frequency band may include 4 106-tone RUs and 2 26-tone RUs.
- the 40MHz frequency band may include two 242-tone RUs.
- the 40MHz frequency band may include one 484-tone RU.
- the 80MHz frequency band includes 1024 subcarriers.
- the 80MHz frequency band can support 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU, and 996-tone RU.
- the 80MHz frequency band may include one 996-tone RU.
- the 80MHz frequency band may include one or more 26-tone RU, one or more 52-tone RU, one or more 106-tone RU, one or more 242-tone RU, and/or one or more 484 -tone RU.
- the 80MHz frequency band can include 37 26-tone RUs.
- the 80MHz frequency band may include 16 52-tone RUs and 5 26-tone RUs.
- the 80MHz frequency band may include 8 106-tone RUs and 5 26-tone RUs.
- the 80MHz frequency band may include four 242-tone RUs and one 26-tone RU.
- the 80MHz frequency band may include two 484-tone RUs and one 26-tone RU.
- the 80MHz frequency band may include one 996-tone RU.
- the 160MHz frequency band includes 2048 subcarriers.
- the sub-carrier distribution in the 160 MHz frequency band can be regarded as a combination of two sub-carrier distributions in the 80 MHz frequency band.
- the 160MHz frequency band can be composed of a 2*996-tone RU.
- the 160MHz frequency band may be composed of various combinations of 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU, and 996-tone RU.
- FIG. 5 it is a schematic diagram of the subcarrier distribution of the first frequency band proposed in the prior art.
- the subcarrier distribution shown in FIG. 5 is hereinafter referred to as the first subcarrier distribution of the first frequency band.
- the first frequency band is equivalent to a combination of two 160MHz frequency bands.
- the first frequency band is equivalent to a combination of four 80MHz frequency bands.
- the first frequency band includes 4 sub-bands, and each sub-band includes 1001 sub-carriers.
- the sub-carrier distribution of the sub-band can be referred to as shown in FIG. 3.
- the sub-band includes 1001 sub-carriers, which are divided into the following two cases: (1) The sub-band includes 966 data and pilot sub-carriers, and the middle of the sub-band also includes 5 sub-band DC sub-carriers. (2) The sub-band includes 944 sub-carriers, and the middle of the sub-band also includes 7 sub-band DC sub-carriers.
- the sub-band consists of 8 106-tone RUs and 5 26-tone RUs
- guard sub-carriers on the left side of the first sub-band, and 11 guard sub-carriers on the right side of the fourth sub-band.
- DC sub-carriers in the DC region (or the middle region) of the first frequency band.
- the embodiment of the present application provides the second seed carrier distribution of the first frequency band.
- the edge guard band of the first frequency band is increased. , Thereby reducing the complexity of implementing the filter.
- the first frequency band For the first frequency band using the second seed carrier distribution, the first frequency band includes P guard sub-carriers P is a positive integer greater than 12.
- the first sub-band is located between the P guard sub-carriers and the second sub-band.
- the first frequency band also includes Q guard subcarriers, and Q is a positive integer greater than 11.
- the fourth sub-band is located between the Q guard sub-carriers and the third sub-band.
- the first frequency band using the second seed carrier distribution increases the number of guard subcarriers in the edge guard band.
- the first frequency band includes 4 sub-bands, and the 4 sub-bands include X sub-carriers, and X is a positive integer greater than or equal to 996 and less than 1001. That is, the first frequency band can increase the number of guard subcarriers in the edge guardband by reducing the number of empty subcarriers included in the subband.
- the first frequency band there are still M empty subcarriers between the first subband and the second subband, and/or there are M empty subcarriers between the third subband and the fourth subband, M is an integer less than 23 and greater than or equal to 0. That is, the first frequency band can increase the number of guard subcarriers in the edge guard band by using the number of empty subcarriers between the two subbands.
- the DC region of the first frequency band includes K DC subcarriers, and K is a positive integer less than 23. That is, the first frequency band can increase the number of guard subcarriers in the edge guard band by reducing the number of direct current subcarriers in the direct current region.
- the DC area refers to the area where the DC subcarriers on the first frequency band are located.
- the midpoint of the DC region is located at the center frequency of the first frequency band.
- the sequence number of the guard sub-carrier located on the left side of the first sub-band is specifically [-2048:-1995]
- the sequence number of the first sub-band is specifically [-1994:-999]
- the sequence number of the second sub-band is specifically [-998:-3]
- the sequence number of the 5 DC sub-carriers is specifically [-2:2]
- the sequence number of the third sub-band is specifically [3:998]
- the sequence number of the fourth sub-band is specifically [999:1994 ]
- the sequence number of the guard subcarrier located on the right side of the fourth subband is specifically [1995:2047].
- the sub-carrier includes 996 sub-carriers, which can be divided into the following two cases: (1) The sub-band includes 996 data and pilot sub-carriers (2) The sub-band includes 994 sub-carriers, and the middle area of the sub-band still exists 2 sub-band DC sub-carriers.
- the sub-carrier distribution of the sub-band can be referred to as shown in FIG. 3.
- the sub-band consists of 8 106-tone RUs and 5 26-tone RUs
- the sequence number of the guard sub-carrier located on the left side of the first sub-band is specifically [-2048:-2005]
- the sequence number of the first sub-band is specifically [-2004:-1004]
- the sequence number of the second sub-band is specifically [-1003:-3]
- the sequence number of the 5 DC sub-carriers is specifically [-2:2]
- the sequence number of the third sub-band is specifically [3:1003]
- the sequence number of the fourth sub-band is specifically [1004:2004 ]
- the sequence number of the protection subcarrier located on the right side of the fourth subband is specifically [2005:2047].
- FIG. 6 or FIG. 7 are both examples of the second seed carrier distribution, and the embodiment of the present application does not limit the specific implementation of the second seed carrier distribution.
- an embodiment of the present application provides a third seed carrier distribution of the first frequency band, so as to improve the spectrum utilization of the first frequency band.
- the first frequency band includes a first frequency domain resource and a second frequency domain resource
- the first frequency domain resource includes 4 sub-bands
- One subband includes X subcarriers
- X is a positive integer greater than or equal to 996
- the second frequency domain resource includes Y data and pilot subcarriers
- Y is a positive integer less than or equal to 52.
- the four sub-bands include a first sub-band, a second sub-band, a third sub-band, and a fourth sub-band, wherein the first sub-band, the second sub-band, and the The third sub-band and the fourth sub-band increase sequentially in the frequency spectrum.
- the form of the second frequency domain resource may be N RUs, and N is a positive integer.
- the N RUs may be located at any position on the first frequency band.
- the second frequency domain resource includes 52 data and pilot subcarriers
- the second frequency domain resource includes two 26-tone RUs, or the second frequency domain resource includes one 52-tone RU.
- the second frequency domain resource includes 2 RUs, and both RUs include 26 data and pilot subcarriers.
- the two RUs included in the second frequency domain resource are the first RU and the second RU, respectively.
- the first RU and the second RU increase sequentially in the frequency spectrum.
- the first RU is located between the second sub-band and the DC region, and the second RU is located between the DC region and the third sub-band.
- the first frequency band includes P guard subcarriers, and P is a positive integer.
- the first sub-band is located between the P guard sub-carriers and the second sub-band.
- P can be 12.
- the first frequency band includes Q guard subcarriers, and Q is a positive integer.
- the fourth sub-band is located between the Q guard sub-carriers and the third sub-band.
- Q may be 11.
- the DC region of the first frequency band includes K DC subcarriers, and K is a positive integer.
- K is 17.
- each of the 4 sub-bands includes 1001 sub-carriers. It should be noted that the sub-band includes 1001 sub-carriers, and the specific description can be referred to the above, which will not be repeated here.
- the sequence number of the guard sub-carrier located on the left side of the first sub-band is specifically [-2048:-2037], and the sequence number of the first sub-band is specifically [-2036:- 1036], the sequence number of the second sub-band is specifically [-1035:-35], the sequence number of the first RU is specifically [-34:-9], and the sequence numbers of the 17 DC sub-carriers are specifically [-8:8],
- the sequence number of the second RU is specifically [9:34]]
- the sequence number of the third sub-band is specifically [35:1035]
- the sequence number of the fourth sub-band is specifically [1036:2036], which is located on the right side of the fourth sub-band.
- the sequence number of the subcarrier is specifically [2037:2047].
- the first sub-band is located between the first RU and the second sub-band
- the fourth sub-band is located between the second RU and the third sub-band.
- the subcarriers included in the first RU are equivalent to guard subcarriers, thereby increasing the number of guard subcarriers in the edge guard band.
- the subcarriers included in the second RU are equivalent to guard subcarriers, thereby increasing the number of guard subcarriers in the edge guard band. It can be understood that the increase in the number of guard sub-carriers in the edge guard band helps reduce the complexity of filter implementation.
- the first frequency band includes P guard subcarriers, and P is a positive integer.
- the first RU is located between the P guard subcarriers and the first subband. Exemplarily, P is 18.
- the first frequency band includes Q guard subcarriers, and Q is a positive integer.
- the second RU is located between the Q guard subcarriers and the fourth subband.
- Q is 17.
- the DC region of the first frequency band includes K DC subcarriers, and K is a positive integer.
- K is 5.
- each of the 4 sub-bands includes 1001 sub-carriers. It should be noted that the sub-band includes 1001 sub-carriers, and the specific description can be referred to the above, which will not be repeated here.
- the sequence number of the guard subcarrier located on the left side of the first RU is specifically [-2048:-2031], and the sequence number of the first RU is specifically [-2030:-2005]
- the sequence number of the first sub-band is specifically [-2004:-1004]
- the sequence number of the second sub-band is specifically [-1003:-3]
- the sequence numbers of the 5 DC sub-carriers are specifically [-2:2]
- the sequence number of the three sub-bands is specifically [3:1003]
- the sequence number of the fourth sub-band is specifically [1004:2004]
- the sequence number of the second RU is specifically [2005:2030], which is the guard subcarrier located on the right side of the second RU
- the serial number of is specifically [2031:2047].
- the first RU is located between the first sub-band and the second sub-band, and the second RU is located between the third sub-band and the fourth sub-band.
- the sub-carriers included in the first RU are equivalent to empty sub-carriers, thereby increasing the number of empty sub-carriers between the first sub-band and the second sub-band. Protection between a sub-band and a second sub-band.
- the sub-carriers included in the second RU are equivalent to empty sub-carriers, thereby increasing the number of empty sub-carriers between the third sub-band and the fourth sub-band, which is beneficial to the third sub-carrier. Protection between the sub-carrier and the fourth sub-carrier.
- any one of the four sub-bands is not used to carry data, and other sub-bands will not be affected.
- the first frequency band includes P guard subcarriers, and P is a positive integer.
- the first subband is located between the P guard subcarriers and the first RU.
- P is equal to 12.
- the first frequency band includes Q guard subcarriers, and Q is a positive integer.
- the fourth subband is located between the Q guard subcarriers and the second RU.
- Q is equal to 11.
- the DC region of the first frequency band includes K DC subcarriers, and K is a positive integer.
- K is 5.
- each of the 4 sub-bands includes 1001 sub-carriers. It should be noted that the sub-band includes 1001 sub-carriers, and the specific description can be referred to the above, which will not be repeated here.
- the sequence number of the guard sub-carrier located on the left side of the first sub-band is specifically [-2048:-2037], and the sequence number of the first sub-band is specifically [-2036:- 1036].
- sequence numbers of the three empty sub-carriers between the first sub-band and the first RU are specifically [-1035:-1033], the sequence numbers of the first RU are specifically [-1032:-1007], the first RU and the second sub-band
- sequence numbers of the 3 empty sub-carriers in between are specifically [-1006:-1004]
- sequence numbers of the second sub-band are specifically [-1003:-3]
- sequence numbers of the 5 DC sub-carriers are specifically [-2:2]
- the sequence number of the third subband is specifically [3:1003]
- the sequence number of the 3 empty subcarriers between the third subband and the second RU is specifically [1004:1006]
- sequence number of the second RU is specifically [1007: 1032]
- sequence number of the 3 empty sub-carriers between the second RU and the fourth sub-band is specifically [1033:1035]
- sequence number of the fourth sub-band is specifically [1036:2036], which is located on the right side of the fourth sub-band
- FIGS. 8 to 10 are only examples of the distribution of the third subcarrier, and the embodiment of the present application does not limit the specific implementation of the distribution of the third subcarrier.
- the first frequency band using the third sub-carrier distribution increases the number of data and pilot sub-carriers, so that the first frequency band can carry more Data, so as to achieve the purpose of improving spectrum utilization.
- the embodiment of the present application provides the fourth sub-carrier distribution of the first frequency band to further improve the spectrum utilization of the first frequency band.
- the first frequency band includes a first frequency domain resource and a second frequency domain resource
- the first frequency domain resource includes four sub-bands
- One subband includes X subcarriers
- X is a positive integer greater than or equal to 996
- the second frequency domain resource includes Y data and pilot subcarriers
- Y is a positive integer greater than 52.
- the four sub-bands include a first sub-band, a second sub-band, a third sub-band, and a fourth sub-band, wherein the first sub-band, the second sub-band, and the The third sub-band and the fourth sub-band increase sequentially in the frequency spectrum.
- the form of the second frequency domain resource may be N RUs, and N is a positive integer.
- the N RUs may be located at any position on the first frequency band.
- the form of the second frequency domain resource is three 26-tone RUs; or the form of the second frequency domain resource is one 52-tone. Tone RU and one 26-tone RU; or, the form of the second frequency domain resource is one 78-tone RU.
- the 52-tone RU included in the second frequency domain resource can be regarded as a combination of two 26-tone RUs.
- the 78-tone RU included in the second frequency domain resource can be regarded as a combination of three 26-tone RUs.
- the second frequency domain resource includes 3 RUs, and each of the 3 RUs includes 26 data and pilot subcarriers.
- the three RUs included in the second frequency domain resource are the first RU, the second RU, and the third RU, respectively.
- the first RU, the second RU, and the third RU sequentially increase in the frequency spectrum.
- the first RU is located between the second RU and the second sub-band
- the second RU is located between the first RU and the third RU
- the third RU is located Between the second RU and the third sub-band.
- the first frequency band includes P guard subcarriers, and P is a positive integer.
- the first sub-band is located between the P guard sub-carriers and the second sub-band.
- P is equal to 12.
- the first frequency band includes Q guard subcarriers, and Q is a positive integer.
- the fourth sub-band is located between the Q guard sub-carriers and the third sub-band.
- Q is equal to 11.
- the first frequency band also includes a DC area
- the second RU includes a first 13RU and a tail 13RU
- the DC area is located between the first 13RU and the last 13RU.
- the first 13 RU includes 13 data and pilot subcarriers.
- the tail 13RU includes 13 data and pilot subcarriers. The first 13RU is located on the left side of the DC area, and the last 13RU is located on the right side of the DC area.
- the DC region of the first frequency band includes K DC subcarriers, and K is a positive integer.
- K is 11.
- each of the 4 sub-bands includes 996 sub-carriers. It should be noted that the sub-band includes 996 sub-carriers, and the specific description can be referred to the above, which will not be repeated here.
- the sequence number of the guard sub-carrier located on the left side of the first sub-band is specifically [-2048:-2037], and the sequence number of the first sub-band is specifically [-2036:- 1041], the sequence number of the second sub-band is specifically [-1040:-45], the sequence number of the first RU is specifically [-44:-19], and the sequence number of the second RU is specifically [-18:-6, 6: 18], the sequence number of the 11 DC sub-carriers is specifically [-5:5], the sequence number of the third RU is specifically [19:44], the sequence number of the third sub-band is specifically [45:1040], and the fourth sub-band is The sequence number of is specifically [1041:2036], and the sequence number of the protection subcarrier located on the right side of the fourth subband is specifically [2037:2047].
- FIG. 11 Exemplarily, the specific structure of the subcarrier distribution shown in FIG. 11 can be referred to FIG. 12.
- the first sub-band is located between the first RU and the second sub-band
- the fourth sub-band is located between the third RU and the third sub-band
- the first sub-band is located between the third RU and the third sub-band.
- Two RUs are located between the second sub-band and the third sub-band.
- the subcarriers included in the first RU are equivalent to guard subcarriers, thereby increasing the number of guard subcarriers in the edge guard band.
- the subcarriers included in the third RU are equivalent to guard subcarriers, thereby increasing the number of guard subcarriers in the edge guard band.
- the first frequency band includes P guard subcarriers, and P is a positive integer.
- the first RU is located between the P guard subcarriers and the first subband.
- P is equal to 15.
- the first frequency band includes Q guard subcarriers, and Q is a positive integer.
- the third RU is located between the Q guard subcarriers and the fourth subband.
- Q is equal to 14.
- the first frequency band also includes a DC area
- the second RU includes a first 13RU and a tail 13RU
- the DC area is located between the first 13RU and the last 13RU.
- the DC region of the first frequency band includes K DC subcarriers, and K is a positive integer.
- K is equal to 5.
- each of the 4 sub-bands includes 996 sub-carriers. It should be noted that the sub-band includes 996 sub-carriers, and the specific description can be referred to the above, which will not be repeated here.
- the sequence number of the guard subcarrier located on the left side of the first RU is specifically [-2048:-2034], and the sequence number of the first RU is specifically [-2033:-2008]
- the sequence number of the first sub-band is specifically [-2007:-1012]
- the sequence number of the second sub-band is specifically [-1011:-16]
- the sequence number of the second RU is specifically [-15:-3, 3:15 ]
- the sequence number of the 5 DC sub-carriers is specifically [-2:2]
- the sequence number of the third sub-band is specifically [16:1011]
- the sequence number of the fourth sub-band is specifically [1012:2007]
- the sequence number of the third RU The sequence number is specifically [2005:2033]
- the sequence number of the protected subcarrier located on the right side of the third RU is specifically [2034:2047].
- the first RU is located between the first sub-band and the second sub-band, the second RU is located between the second sub-band and the third sub-band, and the first RU is located between the second sub-band and the third sub-band.
- the three RUs are located between the third sub-band and the fourth sub-band.
- the sub-carriers included in the first RU are equivalent to empty sub-carriers, thereby increasing the number of empty sub-carriers between the first sub-band and the second sub-band. Protection between a sub-band and a second sub-band.
- the sub-carriers included in the third RU are equivalent to empty sub-carriers, thereby increasing the number of empty sub-carriers between the third sub-band and the fourth sub-band, which is beneficial to the third sub-carrier. Protection between the sub-carrier and the fourth sub-carrier.
- any one of the four sub-bands is not used to carry data, and other sub-bands will not be affected.
- the fourth sub-carrier distribution can be equivalent to two A 160MHz frequency band sub-carrier distribution.
- the DC sub-carriers included in the 160 MHz frequency band occupy the sub-carriers included in the first RU or the third RU.
- the guard subcarriers included in the 160MHz frequency band occupy part of the subcarriers of the second RU.
- the first frequency band includes P guard subcarriers, and P is a positive integer.
- the first subband is located between the P guard subcarriers and the first RU.
- P is equal to 13.
- the first frequency band includes Q guard subcarriers, and Q is a positive integer.
- the fourth subband is located between the Q guard subcarriers and the second RU.
- Q is equal to 12.
- the first frequency band also includes a DC area
- the second RU includes a first 13RU and a tail 13RU
- the DC area is located between the first 13RU and the last 13RU.
- the DC region of the first frequency band includes K DC subcarriers, and K is a positive integer.
- K is equal to 5.
- the sequence number of the guard sub-carrier located on the left side of the first sub-band is specifically [-2048:-2036], and the sequence number of the first sub-band is specifically [-2035:- 1040], the sequence number of an empty subcarrier between the first subband and the first RU is -1039, the sequence number of the first RU is specifically [-1038:-1013], and the sequence number between the first RU and the second subband is [-1038:-1013].
- the sequence number of one empty sub-carrier is specifically -1012, the sequence number of the second sub-band is specifically [-1011:-16], the sequence number of the second RU is specifically [-15:-3, 3:15], and 5 DC sub-carriers
- the sequence number of the carrier is specifically [-2:2]
- the sequence number of the third sub-band is specifically [16:1011]
- the sequence number of an empty sub-carrier between the third sub-band and the third RU is specifically 1012
- the third RU The sequence number of is specifically [1013:1038]
- the sequence number of an empty sub-carrier between the third RU and the fourth sub-band is 1039
- the sequence number of the fourth sub-band is specifically [1040:2035], which is located to the right of the fourth sub-band
- the sequence number of the protected subcarrier on the side is specifically [2036:2047].
- FIGS. 11 to 14 are only examples of the distribution of the fourth subcarrier, and the embodiment of the present application does not limit the specific implementation of the distribution of the fourth subcarrier.
- the first frequency band using the fourth seed carrier distribution has more data and pilot sub-carriers, so the first frequency band is used.
- the first frequency band distributed with four sub-carriers can carry more data and has higher spectrum utilization.
- the embodiment of the present application does not limit the number of empty subcarriers included in the subband. Those skilled in the art can adjust the number of empty sub-carriers included in the sub-band according to actual conditions.
- the embodiment of the present application does not limit the number of empty subcarriers between the subband and the RU of the second frequency domain resource. Those skilled in the art can adjust the number of empty subcarriers between the subband and the RU of the second frequency domain resource according to actual conditions.
- the embodiment of the present application does not limit the number of DC subcarriers in the DC area. Those skilled in the art can adjust the number of DC sub-carriers according to actual conditions.
- the embodiment of the present application does not limit the number of protection subcarriers in the edge protection band. Those skilled in the art can adjust the number of guard subcarriers in the edge guard band according to actual conditions.
- the first frequency band may increase the number of guard subcarriers and/or the number of DC subcarriers in the subband by reducing the number of DC subcarriers in the DC region.
- the first frequency band may increase the number of DC subcarriers in the DC region and/or the number of DC subcarriers in the subband by reducing the number of guard subcarriers.
- the first frequency band may increase the number of guard subcarriers and/or the number of DC subcarriers in the DC area by reducing the number of DC subcarriers in the subband.
- an embodiment of the present application provides a data transmission method.
- the method includes the following steps:
- the communication device transmits a PPDU on the first frequency band.
- the communication device may be an AP or an STA.
- the first frequency band may adopt the above-mentioned first seed carrier distribution, second seed carrier distribution, third seed carrier distribution, or fourth seed carrier distribution.
- the specific subcarrier distribution used in the first frequency band may be determined through negotiation between the receiving end and the transmitting end, or defined in a standard, and the embodiment of the present application is not limited to this.
- the transmitting end In the case where the communication device is the transmitting end, the transmitting end generates the PPDU; after that, the transmitting end transmits the PPDU on the first frequency band.
- the receiving end receives the PPDU on the first frequency band; after that, the receiving end parses the PPDU to obtain data.
- the first frequency band may adopt the first sub-carrier distribution, the second sub-carrier distribution, the third sub-carrier distribution, or the fourth sub-carrier distribution, in order to have a better For high spectrum utilization, the first frequency band can be considered to use the third seed carrier distribution or the fourth seed carrier distribution.
- the first frequency band including the first frequency domain resource and the second frequency domain resource (that is, the first frequency band using the third seed carrier distribution or the fourth seed carrier distribution)
- the first frequency band The second frequency domain resource is used to carry data, so the receiving end/sending end cannot reuse the existing operation on the 80MHz frequency band in the transmission process, which increases the complexity of the receiver/sending end transmitting data on the first frequency band.
- the second frequency domain resources of the first frequency band are not used to carry data, the spectrum utilization rate of the first frequency band is lower. Therefore, when transmitting data on the first frequency band, how to balance data transmission complexity and spectrum utilization is a technical problem to be solved urgently.
- a frequency domain resource indication method provided by an embodiment of this application includes the following steps:
- the sending end generates a first frame.
- the sending end may be an AP or an STA.
- the receiving end can be an AP or an STA.
- the embodiments of the present application do not limit this.
- the first frame may be a data frame, a control frame, or a management frame, which is not limited in the embodiment of the present application.
- the first frame includes first indication information.
- the first indication information is used to indicate whether a part or all of the frequency domain resources in the second frequency domain resources in the first frequency band are used to carry data.
- the foregoing first indication information may have multiple implementation manners, and the embodiment of the present application is not limited to this.
- the value of the first indication information when the value of the first indication information is the first value, it means that all frequency domain resources of the second frequency domain resources in the first frequency band are used to carry data; when the value of the first indication information is the second value , Indicates that the second frequency domain resource in the first frequency band is not used to carry data.
- the first indication information may include N bits, and the N bits correspond to the N RUs in the second frequency domain resource one-to-one, and one bit is used for It indicates whether the RU corresponding to this bit is used to carry data. It can be understood that when the value of the bit is the third value, it means that the RU corresponding to the bit is used to carry data. When the value of this bit is the fourth value, it means that the RU corresponding to this bit is not used to carry data.
- the first frame may be a data frame .
- the first indication information included in the first frame is used to indicate whether a part or all of the frequency domain resources in the second frequency domain resources are used to carry the data in the first frame.
- the downlink transmission refers to the AP sending a wireless frame to the STA.
- Uplink transmission refers to the STA sending wireless frames to the AP.
- the first frame in a single-user uplink transmission scenario, or in a single-user downlink transmission scenario, the first frame is the SU PPDU. In a multi-user downlink transmission scenario, the first frame is MU PPDU.
- Fig. 17 exemplarily shows a frame structure of a PPDU.
- the PPDU may include a legacy-short training field (L-STF), a legacy-long training field (L-LTF), and a legacy-signal field (legacy-signal).
- L-SIG legacy-short training field
- L-LTF legacy-long training field
- legacy-signal field legacy-signal field
- field, L-SIG field for autodetection
- EHT-SIG-A, EHT-SIG-B extremely high throughput-short training field (extremely high throughput-short training field, EHT-STF)
- extremely high throughput-long training field EHT-LTF
- data data
- PE data packet extension
- L-STF, L-LTF, and L-SIG are all legacy preamble fields.
- the subcarrier distribution of the first frequency band may be applicable to EHT-STF, EHT-LTF, data, and PE in the PPDU.
- the first indication information may be located in EHT-SIG-A and/or EHT-SIG-B.
- the first indication information may be carried in the EHT-SIG-B.
- the first indication information may be carried in the EHT-SIG-A.
- the AP can allocate resources according to the STA's ability to simultaneously The ability to support the number of resource units for transmission, and the amount of traffic that the STA needs to transmit, determine how many RUs are allocated for the STA, and what type of each RU is.
- the STA can carry information about the number of resource units that it can support transmission at the same time in the association request frame, so that the AP can reasonably schedule wireless resources according to the STA's capabilities.
- the WLAN system can also pre-set the number of resource units that each STA supports transmission at the same time, or the WLAN system can also set no limit on the number of resource units that STAs can support transmission at the same time, and the AP can use it according to itself.
- the resource situation of each STA allocates resource units, which is not specifically limited in the embodiment of the present application.
- the following specifically introduces the first indication information for a multi-user OFMDA downlink transmission scenario.
- EHT-SIG-B includes two content channels (content channels, CC). Both CCs are used to carry resource unit allocation indication information. For ease of description, these two content channels can be denoted as CC1 and CC2.
- CC1 contains multiple odd-numbered 20MHz resource allocation information and site information transmitted on these multiple odd-numbered 20MHz.
- CC2 contains multiple even-numbered 20MHz resource allocation information and station information transmitted on these multiple even-numbered 20MHz.
- EHT-SIG-B includes 16 first resource allocation domains. These 16 first resource allocation domains correspond to 16 242-tone RUs in the first frequency band.
- the first resource allocation field is used to indicate the corresponding 242-tone RU spectrum division mode. It should be noted that the spectrum division method refers to a combination of different types of RUs into which the 242-tone RU can be divided.
- the first resource allocation domain corresponding to the odd-numbered 242-tone RU is located in CC1
- the first resource allocation domain corresponding to the even-numbered 242-tone RU is located in CC2.
- the first resource allocation field may have other names, such as RU allocation subfield (RU allocation subfield), and the embodiment of the present application is not limited to this.
- CC1 and CC2 also include a second resource allocation field.
- the second resource allocation domain located in CC1 corresponds to the 26-tone RU in the middle of the first sub-band and the 26-tone RU in the middle of the third sub-band.
- the second resource allocation domain located in CC2 corresponds to the 26-tone RU in the middle of the second sub-band and the 26-tone RU in the middle of the fourth sub-band.
- the second resource allocation field may have other names, such as a center 26-tone RU indication (center 26-tone RU indication), and the embodiment of the present application is not limited to this.
- CC1 and CC2 also include a third resource allocation field.
- the third resource allocation field may have other names, such as additional RU signaling (additional RU signaling), and the embodiment of the present application is not limited thereto.
- the third resource allocation field on CC1 is the same as the third resource allocation field on CC2. That is, the third resource allocation field on CC1 is a copy of the third resource allocation field on CC2. In other words, the third resource allocation field on CC2 is a copy of the third resource allocation field on CC1.
- the first indication information is the third resource allocation field on CC1; or, the first indication information is the third resource allocation field on CC2.
- the third resource allocation domain on CC1 is different from the third resource allocation domain on CC2.
- the first indication information includes the third resource allocation field on CC1 and the third resource allocation field on CC2.
- the second frequency domain resource comprises N RU
- on the third resource allocation domain CC1 may correspond to the N of the N 1 RU RU
- on the third resource allocation domain may correspond to the N CC2 RU N 2 in the two RU.
- N 1 +N 2 N.
- Both N 1 and N 2 are positive integers.
- the third resource allocation field on CC1 includes N 1 bits, N 1 bits correspond to the N 1 RUs one-to-one, and each of the N 1 bits is used to indicate whether the RU corresponding to the bit is used for carrying data.
- the third resource allocation field on CC2 includes N 2 bits, the N 2 bits correspond to the N 2 RUs one-to-one, and each of the N 2 bits is used to indicate whether the RU corresponding to the bit is used for carrying data.
- CC1 and CC2 also include a cyclic redundancy code (CRC) and a tail field for cyclic decoding.
- CRC cyclic redundancy code
- CC1 and CC2 also include per user field. According to the order of RU allocation, each site domain includes corresponding multiple site fields (user fields).
- each station field also includes the STA's identification.
- Each STA of multiple STAs participating in simultaneous transmission only needs to read the first frame after receiving the first frame.
- the signaling information in the field of the site that contains its own identification is included, so as to determine the RU that the AP allocates to itself through the field of the site.
- the first frame is the trigger frame.
- the trigger frame can include a public domain and a site-by-site domain.
- the public domain may include fields such as trigger type (trigger type), uplink length (UL length), and uplink bandwidth.
- the site-by-site domain includes multiple site fields. Each site field includes: association identifier (AID), resource unit allocation (RU allocation) field, uplink coding type field, uplink modulation strategy field, uplink dual-carrier modulation field, spatial stream allocation/random access resource unit information , Uplink received signal strength field, reserved bits.
- the resource unit allocation field is used to indicate an RU allocated to the site corresponding to the site information.
- the first indication information may be located in the common domain of the trigger frame. That is, a field can be added to the common domain of the trigger frame to carry the first indication information.
- the public domain of the trigger frame may use an existing field to carry the first indication information.
- the first indication information may also be equivalent to site domain by site. That is, the first indication information may include multiple site fields.
- the AID of the site field corresponding to the second frequency domain resource is not the fifth value, it indicates that the second frequency domain resource is used to carry data.
- there are N site fields in the multiple site fields and the N site fields correspond to N RUs in the second frequency domain resource in a one-to-one correspondence.
- the fifth value For each of the N site fields, when the AID corresponding to the site field is the fifth value, it means that the RU corresponding to the site field is not used to carry data; when the AID corresponding to the site field is not the fifth value, It means that the RU corresponding to the site field is used to carry data.
- the fifth value may be 2046, and the embodiment of the present application is not limited thereto.
- the first indication information is equivalent to a resource unit allocation field in the site information corresponding to the receiving end.
- the resource unit allocation field in the site information corresponding to the receiving end is used to indicate the RU in the second frequency domain resource, which means that the RU in the second frequency domain resource is used to carry data. If the resource unit allocation field in the site information corresponding to the receiving end is not used to indicate the RU in the second frequency domain, it means that the RU in the second frequency domain resource is not used to carry data.
- Design 2 The first indication information is used to indicate the bandwidth of the frequency band used for data transmission and the distribution of subcarriers used in the frequency band.
- the frequency band adopts the above-mentioned third seed carrier distribution or fourth seed carrier distribution, it means that the first The second frequency domain resource in the frequency band is used to carry data.
- the frequency band adopts the above-mentioned first seed carrier distribution or second seed carrier distribution, it means that the first The frequency band does not have a second frequency domain resource.
- the first indication information may be as shown in Table 1.
- the first indication information may be located in EHT-SIG-A.
- the sending end sends the first frame to the receiving end, so that the receiving end receives the first frame from the sending end.
- the receiving end receives/transmits data according to the first frame.
- the receiving end determines the frequency domain resource corresponding to the receiving end according to the first frame. After that, the receiving end receives/transmits data on the frequency domain resource corresponding to the receiving end.
- the frequency domain resource corresponding to the receiving end refers to the RU allocated to the receiving end.
- the sending end can comprehensively consider factors such as the receiving end type and service type to determine which is more important between spectrum utilization and data transmission complexity. Therefore, when it is more important to improve the spectrum utilization, the sender can use the first indication information in the first frame to indicate that some or all of the frequency domain resources in the second frequency domain resources in the first frequency band are used for carrying data. In the case that reducing the complexity of data transmission is more important, the sending end may indicate that the second frequency domain resource in the first frequency band is not used to carry data through the first indication information in the first frame.
- the communication device includes a hardware structure and/or software module corresponding to each function.
- the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
- each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module.
- the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each function module corresponding to each function:
- an embodiment of the present application provides a communication device.
- the communication device includes a processing module 101 and a communication module 102.
- the processing module 101 is used to generate a PPDU and execute step S201 in FIG. 16.
- the communication module 102 is used to perform step S101 in FIG. 15 and step S202 in FIG. 16.
- the processing module 101 is used to parse the PPDU.
- the communication module 102 is used to execute step S101 in FIG. 15 and steps S202 and S203 in FIG. 16.
- Fig. 22 is a structural diagram of a possible product form of the communication device according to an embodiment of the present application.
- the communication device described in the embodiment of the present application may be a communication device, and the communication device includes a processor 201 and a transceiver 202.
- the communication device further includes a storage medium 203.
- the processor 201 When the communication device is used as the transmitting end, the processor 201 is used to generate a PPDU and execute step S201 in FIG. 16.
- the transceiver 202 is used to perform step S101 in FIG. 15 and step S202 in FIG. 16.
- the processor 201 When the communication device serves as the receiving end, the processor 201 is used to parse the PPDU.
- the transceiver 202 is configured to perform step S101 in FIG. 15 and steps S202 and S203 in FIG. 16.
- the communication device described in the embodiment of the present application may also be implemented by a general-purpose processor or a special-purpose processor, that is, commonly known as a chip.
- the chip includes: a processing circuit 201 and a transceiver pin 202.
- the chip may also include a storage medium 203.
- the processing circuit 201 is used to generate a PPDU, and execute step S201 in FIG. 16.
- the transceiver pin 202 is used to perform step S101 in FIG. 15 and step S202 in FIG. 16.
- the processing circuit 201 is used to parse the PPDU.
- the transceiver pin 202 is used to perform step S101 in Fig. 15 and steps S202 and S203 in Fig. 16.
- the communication device described in the embodiments of this application can also be implemented using the following circuits or devices: one or more field programmable gate arrays (FPGA), programmable logic A programmable logic device (PLD), a controller, a state machine, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing various functions described throughout this application.
- FPGA field programmable gate arrays
- PLD programmable logic A programmable logic device
- controller a state machine
- gate logic discrete hardware components
- any other suitable circuits any combination of circuits capable of performing various functions described throughout this application.
- the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
- the computer instructions may be transmitted from a website, a computer, or a server.
- the data center transmits to another website site, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.).
- the computer-readable storage medium may be any available medium that can be accessed by a computer, or may include one or more data storage devices such as servers and data centers that can be integrated with the medium.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium, or a semiconductor medium (for example, a solid state hard disk).
- the devices and methods disclosed in the several embodiments provided in this application can be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be divided. It can be combined or integrated into another device, or some features can be omitted or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate parts may or may not be physically separate.
- the parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
- the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium.
- the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product, and the software product is stored in a storage medium. It includes several instructions to make a device (may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本申请提供一种数据传输方法及装置,涉及通信技术领域,用于提高带宽大小为320MHz或者160+160MHz的频带的频谱利用率。该通信方法包括:AP或者STA在第一频带上传输PPDU,该第一频带的带宽大小为320MHz或者160+160MHz,该第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。本申请适用于数据传输的过程中。
Description
本申请要求于2019年09月05日提交国家知识产权局、申请号为201910838828.7、申请名称为“数据传输方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,尤其涉及数据传输方法及装置。
802.11标准是无线局域网(wireless local area network,WLAN)的通用标准。目前,电气和电子工程师协会(institute of electrical and electronics engineers,IEEE)正在开展802.11ax之后的下一代802.11标准的讨论。相比于之前的802.11标准,该下一代802.11标准支持极高吞吐率(extremely high throughput,EHT)的数据传输。
为了实现支持极高吞吐率的数据传输的目的,下一代802.11标准需要支持更大的带宽,例如320兆赫兹(MHz)或者160+160MHz。但是,目前,业界所提出的320MHz或者160+160MHz的带宽的子载波分布(tone plan)对于频谱的利用率较低。
发明内容
本申请提供一种数据传输方法及装置,用于提高带宽大小为320MHz或者160+160MHz的频带的频谱利用率。
第一方面,提供一种数据传输方法,包括:通信装置在第一频带上传输物理层协议数据单元(physical layer protocol data unit,PPDU),第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。基于本申请的技术方案,第一频带具有更多的数据与导频子载波,从而第一频带可以承载更多的数据,进而提高了第一频带的频谱利用率。
一种可能的设计中,在通信装置为PPDU的发送端的情况下,在通信装置在第一频带上传输PPDU之前,该方法还包括:通信装置生成PPDU。通信装置在第一频带上传输PPDU,包括:通信装置在第一频带上发送PPDU。
一种可能的设计中,在通信装置为PPDU的接收端的情况下,通信装置在第一频带上传输PPDU,包括:通信装置在第一频带上接收PPDU。在通信装置在第一频带上传输PPDU之后,还包括:通信装置解析PPDU。
一种可能的设计中,第二频域资源包括第一资源单元(resource unit,RU)、第二RU、以及第三RU,第一RU、第二RU、以及第三RU在频谱上依次递增,第一RU、第二RU、以及第三RU均包括26个数据与导频子载波。
一种可能的设计中,四个子频带包括第一子频带、第二子频带、第三子频带和第四子频带,其中,第一子频带、第二子频带、第三子频带、以及第四子频带在频谱上依次递增。
一种可能的设计中,第一子频带位于第一RU与第二子频带之间,第二RU位于第二子频带与第三子频带之间,第四子频带位于第三子频带与第三RU之间。这样一来,在第一RU不承载数据的情况下,第一RU所包括的子载波相当于保护子载波,从而增加了保护子载波的数目,有利于减少滤波器的实现复杂度。类似地,在第三RU不承载数据的情况下,第三RU所包括的子载波相当于保护子载波,从而增加了保护子载波的数目,有利于减少滤波器的实现复杂度。
一种可能的设计中,第一频带还包括直流(direct current,DC)区域,第二RU包括首13RU和尾13RU,DC区域位于首13RU和尾13RU之间。
一种可能的设计中,DC区域包括5个DC子载波。
一种可能的设计中,第一频带还包括15个保护子载波,其中,第一RU位于15个保护子载波与第一子频带之间。
一种可能的设计中,第一频带还包括14个保护子载波,其中,第三RU位于14个保护子载波与第四子频带之间。
一种可能的设计中,第一RU位于第一子频带和第二子频带之间,第二RU位于第二子频带与第三子频带之间,第三RU位于第三子频带和第四子频带之间。这样一来,在第一RU不承载数据的情况下,第一RU所包括的子载波相当于空子载波,从而增加了第一子频带和第二子频带之间的空子载波的数目,有利于第一子频带和第二子频带之间的保护。类似地,在第三RU不承载数据的情况下,第三RU所包括的子载波相当于空子载波,从而增加了第三子频带和第四子频带之间的空子载波的数目,有利于第三子频带和第四子频带之间的保护。
一种可能的设计中,第一频带还包括一个或多个空子载波,一个或多个空子载波位于第一RU与第一子频带之间。
一种可能的设计中,第一RU与第二子频带之间存在一个或多个空子载波。
一种可能的设计中,第三RU与三子频带之间存在一个或多个空子载波。
一种可能的设计中,第三RU与第四子频带之间存在一个或多个空子载波。
一种可能的设计中,第一频带包括13个保护子载波,第一子频带位于第一RU与13个保护子载波之间。
一种可能的设计中,第一频带包括12个保护子载波,第四子频带位于第三RU与12个保护子载波之间。
一种可能的设计中,第一频带还包括DC区域,第二RU包括首13RU和尾13RU,DC区域位于首13RU和尾13RU之间。
一种可能的设计中,DC区域包括5个DC子载波。
一种可能的设计中,第一RU位于第二RU与第二子频带之间,第二RU位于第一RU与第三RU之间,第三RU位于第二RU与第三子频带之间。
一种可能的设计中,第一频带还包括12个保护子载波,第一子频带位于12个保护子载波与第二子频带之间。
一种可能的设计中,第一频带还包括11个保护子载波,第四子频带位于11个保护子载波与第三子频带之间。
一种可能的设计中,第一频带还包括DC区域,第二RU包括首13RU和尾13RU, DC区域位于首13RU和尾13RU之间。
一种可能的设计中,DC区域包括11个DC子载波。
第二方面,提供一种通信装置,包括:通信模块,用于在第一频带上传输物理层协议数据单元PPDU,第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。
一种可能的设计中,通信装置还包括:处理模块。所述处理模块,用于生成PPDU。所述通信模块,具体用于在第一频带上发送PPDU。
一种可能的设计中,通信装置还包括:处理模块。所述通信模块,具体用于在第一频带上接收PPDU。所述处理模块,具体用于解析PPDU。
一种可能的设计中,第二频域资源包括第一RU、第二RU、以及第三RU,第一RU、第二RU、以及第三RU在频谱上依次递增,第一RU、第二RU、以及第三RU均包括26个数据与导频子载波。
一种可能的设计中,四个子频带包括第一子频带、第二子频带、第三子频带和第四子频带,其中,第一子频带、第二子频带、第三子频带、以及第四子频带在频谱上依次递增。
一种可能的设计中,第一子频带位于第一RU与第二子频带之间,第二RU位于第二子频带与第三子频带之间,第四子频带位于第三子频带与第三RU之间。
一种可能的设计中,第一频带还包括DC区域,第二RU包括首13RU和尾13RU,DC区域位于首13RU和尾13RU之间。
一种可能的设计中,DC区域包括5个DC子载波。
一种可能的设计中,第一频带还包括15个保护子载波,其中,第一RU位于15个保护子载波与第一子频带之间。
一种可能的设计中,第一频带还包括14个保护子载波,其中,第三RU位于14个保护子载波与第四子频带之间。
一种可能的设计中,第一RU位于第一子频带和第二子频带之间,第二RU位于第二子频带与第三子频带之间,第三RU位于第三子频带和第四子频带之间。
一种可能的设计中,第一频带还包括一个或多个空子载波,一个或多个空子载波位于第一RU与第一子频带之间。
一种可能的设计中,第一RU与第二子频带之间存在一个或多个空子载波。
一种可能的设计中,第三RU与三子频带之间存在一个或多个空子载波。
一种可能的设计中,第三RU与第四子频带之间存在一个或多个空子载波。
一种可能的设计中,第一频带包括13个保护子载波,第一子频带位于第一RU与13个保护子载波之间。
一种可能的设计中,第一频带包括12个保护子载波,第四子频带位于第三RU与12个保护子载波之间。
一种可能的设计中,第一频带还包括DC区域,第二RU包括首13RU和尾13RU,DC区域位于首13RU和尾13RU之间。
一种可能的设计中,DC区域包括5个DC子载波。
一种可能的设计中,第一RU位于第二RU与第二子频带之间,第二RU位于第一RU与第三RU之间,第三RU位于第二RU与第三子频带之间。
一种可能的设计中,第一频带还包括12个保护子载波,第一子频带位于12个保护子载波与第二子频带之间。
一种可能的设计中,第一频带还包括11个保护子载波,第四子频带位于11个保护子载波与第三子频带之间。
一种可能的设计中,第一频带还包括DC区域,第二RU包括首13RU和尾13RU,DC区域位于首13RU和尾13RU之间。
一种可能的设计中,DC区域包括11个DC子载波。
第三方面,提供一种通信装置,该通信装置包括通信接口,所述通信接口用于在第一频带上传输物理层协议数据单元PPDU,第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。
一种可能的设计中,通信装置还包括:处理器,所述处理器,用于生成PPDU。所述通信接口,具体用于在第一频带上发送PPDU。
一种可能的设计中,通信装置还包括:处理器。所述通信接口,具体用于在第一频带上接收PPDU。所述处理器,具体用于解析PPDU。
该通信装置用于执行上述第一方面中任一种设计所涉及的数据传输方法。
第四方面,提供一种计算机可读存储介质,该计算机可读存储介质用于存储指令。当该指令被计算机读取时,计算机用于执行上述第一方面中任一种设计所涉及的数据传输方法。
第五方面,提供一种计算机程序产品,该计算机程序产品包括指令,当该指令被计算机读取时,计算机用于执行上述第一方面中任一种设计所涉及的数据传输方法。
第六方面,提供一种芯片,该芯片包括收发管脚,所述收发管脚,用于在第一频带上传输物理层协议数据单元PPDU,所述第一频带的带宽大小为320MHz或者160+160MHz,所述第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。
一种可能的设计中,该芯片还包括:处理电路,该处理电路,用于生成PPDU。所述收发管脚,用于在所述第一频带上发送所述PPDU。
一种可能的设计中,该芯片还包括处理电路,所述收发管脚,用于在所述第一频带上接收所述PPDU,所述处理电路,用于解析所述PPDU。
该芯片用于执行上述第一方面中任一种设计所涉及的数据传输方法。
需要说明的是,第一频域资源和第二频域资源的具体描述可以参考第一方面中的介绍,此处不再赘述。
其中,第二方面至第六方面中任一种设计所带来的技术效果可以参考上文所提供的对应的方法中的有益效果,此处不再赘述。
本申请还提供一种频域资源指示方法及装置,用于平衡带宽大小为320MHz或160+160MHz的频带的频谱利用率和数据传输复杂度。
第七方面,提供一种频域资源指示方法,包括:发送端生成第一帧,该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。之后,发送端发送第一帧。
基于本申请的技术方案,发送端通过向接收端发送第一帧,以灵活地指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据。也即,发送端可以在需要优先考虑频谱利用率的情况下,通过向接收端发送第一帧,以指示第二频域资源中的一部分或者全部频域资源用于承载数据,从而提高第一频带的频谱利用率。或者,发送端可以在需要优先考虑数据传输复杂度的情况下,通过向接收端发送第一帧,以指示第二频域资源不用于承载数据。在第一频带的第二频域资源不用于承载数据的情况下,发送端/接收端可以复用现有对80MHz频带的操作,在第一频带上传输PPDU,从而降低数据传输复杂度。
需要说明的是,第一频带的相关描述可以参考第一方面中的介绍,此处不再赘述。
一种可能的设计中,第一指示信息的取值为第一取值时,表示第一频带中的第二频域资源的全部频域资源用于承载数据;第一指示信息的取值为第二取值时,表示第一频带中的第二频域资源不用于承载数据。
一种可能的设计中,在第二频域资源包括N个RU的情况下,第一指示信息可以包括N个比特,N个比特与第二频域资源中的N个RU一一对应,并且,一个比特用于指示与该比特对应的RU是否用于承载数据。
一种可能的设计中,第一帧为EHT PPDU。可选的,第一指示信息可以承载于第一帧中的极高吞吐量信令字段A(extremely high throughput signal field A,EHT-SIG-A)中。
一种可能的设计中,第一帧为触发帧。可选的,第一指示信息可以位于第一帧中的公共域。
第八方面,提供一种频域资源指示方法,包括:接收端接收第一帧,该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。之后,接收端根据第一帧,接收/发送数据。
需要说明的是,第一频带的相关描述可以参考第一方面中的介绍,此处不再赘述。
一种可能的设计中,第一指示信息的取值为第一取值时,表示第一频带中的第二频域资源的全部频域资源用于承载数据;第一指示信息的取值为第二取值时,表示第一频带中的第二频域资源不用于承载数据。
一种可能的设计中,在第二频域资源包括N个RU的情况下,第一指示信息可以 包括N个比特,N个比特与第二频域资源中的N个RU一一对应,并且,一个比特用于指示与该比特对应的RU是否用于承载数据。
一种可能的设计中,第一帧为EHT PPDU。可选的,第一指示信息可以承载于第一帧中的EHT-SIG-A中。
一种可能的设计中,第一帧为触发帧。可选的,第一指示信息可以位于第一帧中的公共域中。
第九方面,提供一种通信装置,包括:处理模块和通信模块。其中,处理模块,用于生成第一帧,该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。通信模块,用于发送第一帧。
需要说明的是,第一频带的相关描述可以参考第一方面中的介绍,此处不再赘述。
一种可能的设计中,第一指示信息的取值为第一取值时,表示第一频带中的第二频域资源的全部频域资源用于承载数据;第一指示信息的取值为第二取值时,表示第一频带中的第二频域资源不用于承载数据。
一种可能的设计中,在第二频域资源包括N个RU的情况下,第一指示信息可以包括N个比特,N个比特与第二频域资源中的N个RU一一对应,并且,一个比特用于指示与该比特对应的RU是否用于承载数据。
一种可能的设计中,第一帧为EHT PPDU。可选的,第一指示信息可以承载于第一帧中的EHT-SIG-A中。
一种可能的设计中,第一帧为触发帧。可选的,第一指示信息可以位于第一帧中的公共域。
第十方面,提供一种通信装置,包括:通信模块。其中,通信模块,用于接收第一帧;并且,根据第一帧,接收/发送数据。该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。
需要说明的是,第一频带的相关描述可以参考第一方面中的介绍,此处不再赘述。
一种可能的设计中,第一指示信息的取值为第一取值时,表示第一频带中的第二频域资源的全部频域资源用于承载数据;第一指示信息的取值为第二取值时,表示第一频带中的第二频域资源不用于承载数据。
一种可能的设计中,在第二频域资源包括N个RU的情况下,第一指示信息可以包括N个比特,N个比特与第二频域资源中的N个RU一一对应,并且,一个比特用于指示与该比特对应的RU是否用于承载数据。
一种可能的设计中,第一帧为EHT PPDU。可选的,第一指示信息可以承载于第 一帧中的EHT-SIG-A中。
一种可能的设计中,第一帧为触发帧。可选的,第一指示信息可以位于第一帧中的公共域。
第十一方面,提供一种通信装置,包括处理器和通信接口。其中,处理器,用于生成第一帧,该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。通信接口,用于发送第一帧。
该通信装置用于执行上述第七方面任一种设计所涉及的频域资源指示方法。
第十二方面,提供一种通信装置,包括处理器和通信接口。其中,通信接口,用于接收第一帧,该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。处理器,用于根据第一帧,确定用于承载数据的频域资源。通信接口,还用于在用于承载数据的频域资源上接收/发送数据。
该通信装置用于执行上述第八方面任一种设计所涉及的频域资源指示方法。
第十三方面,提供一种计算机可读存储介质,该计算机可读存储介质用于存储指令。当该指令被计算机读取时,计算机用于执行上述第七方面或者第八方面中任一种设计所涉及的频域资源指示方法。
第十四方面,提供一种计算机程序产品,提供一种计算机可读存储介质,该计算机可读存储介质用于存储指令。当该指令被计算机读取时,计算机用于执行上述第七方面或者第八方面中任一种设计所涉及的频域资源指示方法。
第十五方面,提供一种芯片,包括处理电路和收发管脚。其中,处理电路,用于生成第一帧,该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。收发管脚,用于发送第一帧。
需要说明的是,第一帧的相关描述可以参考第七方面中的介绍,此处不再赘述。
第十六方面,提供一种芯片,包括处理电路和收发管脚。其中,收发管脚,用于接收第一帧,该第一帧包括第一指示信息,该第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;第一频带的带宽大小为320MHz或者160+160MHz,第一频带包括第一频域资源和第二频域资源,第一频域资源包括四个子频带,四个子频带中的每一个子频带包括X个子载波,X为大于等于996 的正整数,第二频域资源包括Y个数据与导频子载波,Y为正整数。处理电路,用于根据第一帧,确定用于承载数据的频域资源。收发管脚,还用于在用于承载数据的频域资源上接收/发送数据。
需要说明的是,第一帧的相关描述可以参考第七方面中的介绍,此处不再赘述。
其中,第九方面至第十六方面中任一种设计所带来的技术效果可以参考上文所提供的对应的方法中的有益效果,此处不再赘述。
图1为现有技术中20MHz频带的子载波分布的示意图;
图2为现有技术中40MHz频带的子载波分布的示意图;
图3为现有技术中80MHz频带的子载波分布的示意图;
图4为现有技术中160MHz频带的子载波分布的示意图;
图5为现有技术中第一频带的子载波分布的示意图;
图6为本申请实施例提供的一种第二种子载波分布的示意图;
图7为本申请实施例提供的另一种第二种子载波分布的示意图;
图8为本申请实施例提供的一种第三种子载波分布的示意图;
图9为本申请实施例提供的另一种第三种子载波分布的示意图;
图10为本申请实施例提供的另一种第三种子载波分布的示意图;
图11为本申请实施例提供的一种第四种子载波分布的示意图;
图12为本申请实施例提供的另一种第四种子载波分布的示意图;
图13为本申请实施例提供的另一种第四种子载波分布的示意图;
图14为本申请实施例提供的另一种第四种子载波分布的示意图;
图15为本申请实施例提供的一种数据传输方法的流程图;
图16为本申请实施例提供的一种频域资源指示方法的流程图;
图17为本申请实施例提供的一种PPDU的帧结构的示意图;
图18为本申请实施例提供的一种EHT-SIG-B的示意图;
图19为本申请实施例提供的一种触发帧的帧结构的示意图;
图20为本申请实施例提供的一种触发帧的帧结构的示意图;
图21为本申请实施例提供的一种通信装置的结构示意图;
图22为本申请实施例提供的一种通信装置的结构示意图。
在本申请的描述中,除非另有说明,“/”表示“或”的意思,例如,A/B可以表示A或B。本文中的“和/或”仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。此外,“至少一个”是指一个或多个,“多个”是指两个或两个以上。“第一”、“第二”等字样并不对数量和执行次序进行限定,并且“第一”、“第二”等字样也并不限定一定不同。
需要说明的是,本申请中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言,使用“示例性的” 或者“例如”等词旨在以具体方式呈现相关概念。
在本申请的描述中,“指示”可以包括直接指示和间接指示,也可以包括显式指示和隐式指示。将某一信息(如下文所述的第一指示信息)所指示的信息称为待指示信息,则具体实现过程中,对所述待指示信息进行指示的方式有很多种。例如,可以直接指示所述待指示信息,其中所述待指示信息本身或者所述待指示信息的索引等。又例如,也可以通过指示其他信息来间接指示所述待指示信息,其中该其他信息与所述待指示信息之间存在关联关系。又例如,还可以仅仅指示所述待指示信息的一部分,而所述待指示信息的其他部分则是已知的或者提前约定的。另外,还可以借助预先约定(例如协议规定)的各个信息的排列顺序来实现对特定信息的指示,从而在一定程度上降低指示开销。
本申请所提供的技术方案可以应用于各种通信***,例如:全球移动通信(global system of mobile communication,GSM)***、码分多址(code division multiple access,CDMA)***、宽带码分多址(wideband code division multiple access,WCDMA)***、通用分组无线业务(general packet radio service,GPRS)、长期演进(long term evolution,LTE)***、LTE频分双工(frequency division duplex,FDD)***、LTE时分双工(time division duplex,TDD)、通用移动通信***(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信***、以及未来的5G通信***等。
本申请所提供的技术方案还可以适用于WLAN场景,可以适用于IEEE 802.11***标准,例如IEEE802.11ax标准的下一代或更下一代的标准中,且可适用于包括但不限于物联网(internet of things,IoT)网络或车联网(Vehicle to X,V2X)网络等无线局域网***中。本申请的技术方案适用的场景包括:接入点(access point,AP)与站点(station,STA)之间的通信、AP与AP之间的通信、以及STA与STA之间的通信等。
本申请涉及到的站点STA可以是各种具有无线通信功能的用户终端、用户装置,接入装置,订户站,订户单元,移动站,用户代理,用户装备或其他名称,其中,用户终端可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备,以及各种形式的用户设备(user equipment,UE),移动台(mobile station,MS),终端(terminal),终端设备(terminal equipment),便携式通信设备,手持机,便携式计算设备,娱乐设备,游戏设备或***,全球定位***设备或被配置为经由无线介质进行网络通信的任何其他合适的设备等。在此,为了描述方便,上面提到的设备统称为站点或STA。
本申请所涉及到的接入点AP是一种部署在无线通信网络中为其关联的STA提供无线通信功能的装置,该接入点AP可用作该通信***的中枢,可以为基站、路由器、网关、中继器,通信服务器,交换机或网桥等通信设备,其中,所述基站可以包括各种形式的宏基站,微基站,中继站等。在此,为了描述方便,上面提到的设备统称为接入点AP。
为了便于理解本申请的技术方案,下面先对本申请所涉及的术语进行简单介绍。
1、频带
频带是一种频域资源。频带可以由其他名称,例如信道、频段等,本申请实施例不限于此。当前,WLAN***定义了多种频带的带宽大小,例如20MHz、40MHz、80MHz、160MHz、320MHz、或者160+160MHz等。为了便于描述,带宽大小为x的频带可以简称为xMHz频带。例如,320MHz频带是指带宽大小为320MHz的频带。另外,下文中将320MHz频带和160+160MHz频带统一称为第一频带。
需要说明的是,160+160MHz频带,是指由不连续的两个160MHz的子频带构成的频带。
在本申请实施例中,在子载波间隔为78.125KHz的情况下,第一频带可以包括4096个子载波。以位于第一频带的中心的子载波的编号为0,第一频带所包括的子载波序号可以为[-2048:2047]。
2、RU
RU是一种频域资源,RU包含一个或多个子载波(tone)。当前,WLAN***定义了以下类型的RU:26-tone RU(也即一个RU包含26个子载波),52-tone RU(也即一个RU包含52个子载波),106-tone RU(也即一个RU包含106个子载波),242-tone RU(也即一个RU包含242个子载波),484-tone RU(也即一个RU包含484个子载波),996-tone RU(也即一个RU包含996个子载波)等。
3、子载波
子载波是一种频域资源。子载波包括空子载波、数据与导频子载波、保护(guard)子载波、以及直流子载波。
4、子载波分布(tone plan)
子载波分布是指频带上的资源划分方式。需要说明的是,频带在不同带宽下具有对应的子载波分布。
下面对802.11ax标准中不同带宽下的子载波分布进行介绍。
(1)、20MHz频带的子载波分布
在子载波间距为78.125KHz的情况下,20MHz频带包括256个子载波。如图1所示,20MHz频带可以支持26-tone RU、52-tone RU、106-tone RU、以及242-tone RU。具体的,20MHz频带可以包括一个242-tone RU。或者,20MHz频带可以包括一个或多个26-tone RU、一个或多个52-tone RU、和/或一个或多个106-tone RU。
例如,20MHZ频带可以包括9个26-tone RU。又例如,20MHz频带可以包括4个52-tone RU以及1个26-tone RU。又例如,20MHz频带可以包括2个106-tone RU以及1个26-tone RU。又例如,20MHz频带可以包括1个242-tone RU。又例如,20MHz频带可以包括5个26-tone RU以及2个52-tone RU。
(2)、40MHz频带的子载波分布
在子载波间距为78.125KHz的情况下,40MHz频带包括512个子载波。如图2所示,40MHz频带可以支持26-tone RU、52-tone RU、106-tone RU、242-tone RU、以及484-tone RU。具体的,40MHz频带可以包括一个484-tone RU。或者,40MHz频带可以包括一个或多个26-tone RU、一个或多个52-tone RU、一个或多个106-tone RU、和/或一个或多个242-tone RU。
例如,40Mhz频带可以包括18个26-tone RU。又例如,40MHz频带可以包括8 个52-tone RU以及2个26-tone RU。又例如,40MHz频带可以包括4个106-tone RU以及2个26-tone RU。又例如,40MHz频带可以包括2个242-tone RU。又例如,40MHz频带可以包括1个484-tone RU。
(3)、80MHz频带的子载波分布
在子载波间距为78.125KHz的情况下,80MHz频带包括1024个子载波。如图3所示,80MHz频带可以支持26-tone RU、52-tone RU、106-tone RU、242-tone RU、484-tone RU、以及996-tone RU。具体的,80MHz频带可以包括一个996-tone RU。或者,80MHz频带可以包括一个或多个26-tone RU、一个或多个52-tone RU、一个或多个106-tone RU、一个或多个242-tone RU、和/或一个或多个484-tone RU。
例如,80MHz频带可以包括37个26-tone RU。又例如,80MHz频带可以包括16个52-tone RU以及5个26-tone RU。又例如,80MHz频带可以包括8个106-tone RU以及5个26-tone RU。又例如,80MHz频带可以包括4个242-tone RU以及1个26-tone RU。又例如,80MHz频带可以包括2个484-tone RU以及1个26-tone RU。又例如,80MHz频带可以包括1个996-tone RU。
(4)160MHz频带的子载波分布
在子载波间距为78.125KHz的情况下,160MHz频带包括2048个子载波。如图4所示,160MHz频带的子载波分布可以视为两个80MHz频带的子载波分布的组合。160MHz频带可以由一个2*996-tone RU组成。或者,160MHz频带可以由26-tone RU、52-tone RU、106-tone RU、242-tone RU、484-tone RU、以及996-tone RU的各种组合构成。
以上是对本申请实施例所涉及的术语的介绍,以下不再赘述。
当前,802.11ax的下一代标准通过支持更大的带宽(例如320MHz或者160+160MHz),以实现极高吞吐率。如图5所示,为现有技术中提出的一种第一频带的子载波分布的示意图。为了便于描述,下文中将图5所示的子载波分布称为第一频带的第一种子载波分布。
参见图5,第一频带相当于2个160MHz频带的组合。或者说,第一频带相当于4个80MHz频带的组合。第一频带包括4个子频带,每一个子频带包括1001个子载波。
示例性的,子频带的子载波分布可以参考图3所示。
需要说明的是,子频带包括1001个子载波,分为以下两种情况:(1)子频带包括966个数据与导频子载波,子频带的中间还包括5个子频带直流子载波。(2)子频带包括944个子载波,子频带的中间还包括7个子频带直流子载波。
可选的,对于情况(2),子频带所包括的994个子载波,可以存在一个或多个空子载波。结合图3进行举例说明,在子频带由8个106-tone RU以及5个26-tone RU组成的情况下,在子频带中,106-tone RU与26-tone RU之间存在1个空子载波;两个相邻的106-tone RU之间可以存在一个空子载波。
参见图5,第一子频带的左侧还存在12个保护子载波,第四子频带的右侧还存在11个保护子载波。第一频带的直流区域(或者说中间区域)还存在23个直流子载波。第一子频带和第二子频带之间还存在23个空子载波。第三子频带和第四子频带之间还存在23个空子载波。
对比与上述图5的现有技术,如图6和图7所示,本申请实施例提供第一频带的第二种子载波分布,在本实施例中,通过增大第一频带的边缘保护带,从而减少滤波器的实现复杂度。
对于采用第二种子载波分布的第一频带来说,第一频带包括P个保护子载波P为大于12的正整数。第一子频带位于所述P个保护子载波与第二子频带之间。并且,第一频带还包括Q个保护子载波,Q为大于11的正整数。第四子频带位于所述Q个保护子载波与第三子频带之间。
可以理解的是,相比于采用第一种子载波分布的第一频带来说,采用第二种子载波分布的第一频带增加了边缘保护带中的保护子载波的数目。
可选的,第一频带包括4个子频带,4个子频带包括X个子载波,X为大于等于996小于1001的正整数。也即,第一频带可以通过减少子频带所包括的空子载波的数目,来增加边缘保护带中保护子载波的数目。
可选的,在第一频带中,第一子频带和第二子频带之间还存在M个空子载波,和/或位于第三子频带和第四子频带之间还存在M个空子载波,M为小于23大于等于0的整数。也即,第一频带可以通过两个子频带之间的空子载波的数目,来增加边缘保护带中保护子载波的数目。
可选的,在第一频带中,第一频带的直流区域包括K个直流子载波,K为小于23的正整数。也即,第一频带可以通过减少直流区域中直流子载波的数目,来增加边缘保护带中保护子载波的数目。
需要说明的是,直流区域是指第一频带上直流子载波所在的区域。直流区域的中点位于第一频带的中心频点。
也即,参见图6,在第一频带中,P等于54,Q等于53。也即,位于第一子频带左侧的保护子载波的序号具体为[-2048:-1995],第一子频带的序号具体为[-1994:-999],第二子频带的序号具体为[-998:-3],5个直流子载波的序号具体为[-2:2],第三子频带的序号具体为[3:998],第四子频带的序号具体为[999:1994],位于第四子频带右侧的保护子载波的序号具体为[1995:2047]。
需要说明的是,子载波包括996个子载波,分为以下两种情况:(1)子频带包括996个数据与导频子载波(2)子频带包括994个子载波,子频带的中间区域还存在2个子频带直流子载波。
可选的,对于情况(2),子频带所包括的994个子载波,可以存在一个或多个空子载波。示例性的,子频带的子载波分布可以参考图3所示。例如,在子频带由8个106-tone RU以及5个26-tone RU组成的情况下,在子频带中,106-tone RU与26-tone RU之间存在1个空子载波;两个相邻的106-tone RU之间可以存在一个空子载波。
参见图7,在第一频带中,P等于44,Q等于43。也即,位于第一子频带左侧的保护子载波的序号具体为[-2048:-2005],第一子频带的序号具体为[-2004:-1004],第二子频带的序号具体为[-1003:-3],5个直流子载波的序号具体为[-2:2],第三子频带的序号具体为[3:1003],第四子频带的序号具体为[1004:2004],位于第四子频带右侧的保护子载波的序号具体为[2005:2047]。
可以理解的是,图6或图7均为第二种子载波分布的示例,本申请实施例不限定 第二种子载波分布的具体实现方式。
作为另一种子载波分布,如图8-图10所示,本申请实施例提供第一频带的第三种子载波分布,以提高第一频带的频谱利用率。
对于采用第三种子载波分布的第一频带来说,第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括4个子频带,所述4个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为小于等于52的正整数。
在本申请实施例中,所述四个子频带包括第一子频带、第二子频带、第三子频带和第四子频带,其中,所述第一子频带、所述第二子频带、所述第三子频带、以及所述第四子频带在频谱上依次递增。
在本申请实施例中,第二频域资源的形态可以为N个RU,N为正整数。其中,所述N个RU可以位于第一频带上的任意位置。
例如,在第二频域资源包括52个数据与导频子载波的情况下,第二频域资源包括2个26-tone RU,或者,第二频域资源包括1个52-tone RU。
下面以举例的方式说明第三种子载波分布的不同设计。其中,假设第二频域资源包括2个RU,2个RU均包括26个数据与导频子载波。第二频域资源所包括的2个RU分别为第一RU和第二RU。第一RU和第二RU在频谱上依次递增。
(1)第三种子载波分布的设计1
对于采用第三种子载波分布的设计1的第一频带来说,第一RU位于第二子频带与直流区域之间,第二RU位于直流区域与第三子频带之间。
一种可能的设计中,第一频带包括P个保护子载波,P为正整数。所述第一子频带位于所述P个保护子载波与所述第二子频带之间。示例性的,P可以为12。
一种可能的设计中,第一频带包括Q个保护子载波,Q为正整数。所述第四子频带位于所述Q个保护子载波与所述第三子频带之间。示例性的,Q可以为11。
一种可能的设计中,第一频带的直流区域包括K个直流子载波,K为正整数。示例性的,K为17。
一种可能的设计中,4个子频带中每一个子频带包括1001个子载波。需要说明的是,子频带包括1001个子载波,其具体描述可参见上文,此处不再赘述。
示例性的,参见图8,在第一频带中,位于第一子频带左侧的保护子载波的序号具体为[-2048:-2037],第一子频带的序号具体为[-2036:-1036],第二子频带的序号具体为[-1035:-35],第一RU的序号具体为[-34:-9],17个直流子载波的序号具体为[-8:8],第二RU的序号具体为[9:34],第三子频带的序号具体为[35:1035],第四子频带的序号具体为[1036:2036],位于第四子频带右侧的保护子载波的序号具体为[2037:2047]。
(2)第三种子载波分布的设计2
对于采用第三种子载波分布的设计2的第一频带来说,第一子频带位于第一RU与第二子频带之间,第四子频带位于第二RU与第三子频带之间。这样一来,在第一RU不用于承载数据时,第一RU所包括的子载波相当于保护子载波,从而增加了边缘保护带中保护子载波的数目。类似地,在第二RU不用于承载数据时,第二RU所包括的子载波相当于保护子载波,从而增加了边缘保护带中保护子载波的数目。可以理 解的是,边缘保护带中保护子载波的数目的增加,有利于降低滤波器的实现复杂度。
一种可能的设计中,第一频带包括P个保护子载波,P为正整数。所述第一RU位于所述P个保护子载波与所述第一子频带之间。示例性的,P为18。
一种可能的设计中,第一频带包括Q个保护子载波,Q为正整数。所述第二RU位于所述Q个保护子载波与所述第四子频带之间。示例性的,Q为17。
一种可能的设计中,第一频带的直流区域包括K个直流子载波,K为正整数。示例性的,K为5。
一种可能的设计中,4个子频带中每一个子频带包括1001个子载波。需要说明的是,子频带包括1001个子载波,其具体描述可参见上文,此处不再赘述。
示例性的,参见图9,在第一频带中,位于第一RU左侧的保护子载波的序号具体为[-2048:-2031],第一RU的序号具体为[-2030:-2005],第一子频带的序号具体为[-2004:-1004],第二子频带的序号具体为[-1003:-3],5个直流子载波的序号具体为[-2:2],第三子频带的序号具体为[3:1003],第四子频带的序号具体为[1004:2004],第二RU的序号具体为[2005:2030],位于第二RU右侧的保护子载波的序号具体为[2031:2047]。
(3)第三种子载波分布的设计3
对于采用第三子子载波分布的设计3的第一频带来说,第一RU位于第一子频带和第二子频带之间,第二RU位于第三子频带和第四子频带之间。
这样一来,在第一RU不用于承载数据时,第一RU所包括的子载波相当于空子载波,从而增加了第一子频带和第二子频带之间的空子载波的数目,有利于第一子频带和第二子频带之间的保护。类似地,在第二RU不用于承载数据时,第二RU所包括的子载波相当于空子载波,从而增加了第三子频带和第四子频带之间的空子载波的数目,有利于第三子载波和第四子载波之间的保护。
可以理解的是,若第一频带采用第三种子载波分布的设计3,则4个子频带中任一个子频带不用于承载数据,均不会影响到其他子频带。
一种可能的设计中,第一RU与第一子频带之间存在一个或多个空子载波。例如,第一RU与第一子频带之间存在3个空子载波。
一种可能的设计中,第一RU与第二子频带之间存在一个或多个空子载波。例如,第一RU与第二子频带之间存在3个空子载波。
一种可能的设计中,第二RU与第三子频带之间存在一个或多个空子载波。例如,第二RU与第三子频带之间存在3个空子载波。
一种可能的设计中,第二RU与第四子频带之间存在一个或多个空子载波。例如,第二RU与第三子频带之间存在3个空子载波。
一种可能的设计中,第一频带包括P个保护子载波,P为正整数。第一子频带位于所述P个保护子载波与第一RU之间。示例性的,P等于12。
一种可能的设计中,第一频带包括Q个保护子载波,Q为正整数。第四子频带位于所述Q个保护子载波与第二RU之间。示例性的,Q等于11。
一种可能的设计中,第一频带的直流区域包括K个直流子载波,K为正整数。示例性的,K为5。
一种可能的设计中,4个子频带中每一个子频带包括1001个子载波。需要说明的 是,子频带包括1001个子载波,其具体描述可参见上文,此处不再赘述。
示例性的,参见图10,在第一频带中,位于第一子频带左侧的保护子载波的序号具体为[-2048:-2037],第一子频带的序号具体为[-2036:-1036]。第一子频带与第一RU之间的3个空子载波的序号具体为[-1035:-1033],第一RU的序号具体为[-1032:-1007],第一RU与第二子频带之间的3个空子载波的序号具体为[-1006:-1004],第二子频带的序号具体为[-1003:-3],5个直流子载波的序号具体为[-2:2],第三子频带的序号具体为[3:1003],第三子频带与第二RU之间的3个空子载波的序号具体为[1004:1006],第二RU的序号具体为[1007:1032],第二RU与第四子频带之间的3个空子载波的序号具体为[1033:1035],第四子频带的序号具体为[1036:2036],位于第四子频带右侧的保护子载波的序号具体为[2037:2047]。
可以理解的是,图8至图10仅是对第三种子载波分布的示例,本申请实施例不限定第三种子载波分布的具体实现方式。
相比于采用第一种子载波分布/第二子种载波分布的第一频带,采用第三种子载波分布的第一频带增加了数据与导频子载波的数目,使得第一频带可以承载更多的数据,从而实现提高频谱利用率的目的。
本申请实施例提供还第一频带的第四种子载波分布,以进一步提高第一频带的频谱利用率。
对于采用第四种子载波分布的第一频带来说,第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。
在本申请实施例中,所述四个子频带包括第一子频带、第二子频带、第三子频带和第四子频带,其中,所述第一子频带、所述第二子频带、所述第三子频带、以及所述第四子频带在频谱上依次递增。
在本申请实施例中,第二频域资源的形态可以为N个RU,N为正整数。其中,所述N个RU可以位于第一频带上的任意位置。
例如,在第二频域资源包括78个数据与导频子载波的情况下,第二频域资源的形态为3个26-tone RU;或者,第二频域资源的形态为1个52-tone RU和1个26-tone RU;又或者,第二频域资源的形态为1个78-tone RU。
可以理解的是,第二频域资源所包括的52-tone RU可以视为2个26-tone RU的组合。第二频域资源所包括的78-tone RU可以视为3个26-tone RU的组合。
下面以举例的方式说明第四种子载波分布的不同设计。其中,假设第二频域资源包括3个RU,3个RU均包括26个数据与导频子载波。第二频域资源所包括的3个RU分别为第一RU、第二RU、以及第三RU。其中,第一RU、第二RU、第三RU在频谱上依次递增。
(1)第四种子载波分布的设计1
对于采用第四种子载波分布的设计1的第一频带来说,第一RU位于第二RU与第二子频带之间,第二RU位于第一RU与第三RU之间,第三RU位于第二RU与第三子频带之间。
一种可能的设计中,第一频带包括P个保护子载波,P为正整数。其中,第一子频带位于所述P个保护子载波和第二子频带之间。示例性的,P等于12。
一种可能的设计中,第一频带包括Q个保护子载波,Q为正整数。其中,第四子频带位于所述Q个保护子载波和第三子频带之间。示例性的,Q等于11。
一种可能的设计中,第一频带还包括直流区域,第二RU包括首13RU和尾13RU,直流区域位于首13RU和尾13RU之间。需要说明的是,首13RU包括13个数据与导频子载波。尾13RU包括13个数据与导频子载波。首13RU位于直流区域的左侧,尾13RU位于直流区域的右侧。
一种可能的设计中,第一频带的直流区域包括K个直流子载波,K为正整数。示例性的,K为11。
一种可能的设计中,4个子频带中的每一个子频带均包括996个子载波。需要说明的是,子频带包括996个子载波,其具体描述可参见上文,此处不再赘述。
示例性的,参见图11,在第一频带中,位于第一子频带左侧的保护子载波的序号具体为[-2048:-2037],第一子频带的序号具体为[-2036:-1041],第二子频带的序号具体为[-1040:-45],第一RU的序号具体为[-44:-19],第二RU的序号具体为[-18:-6,6:18],11个直流子载波的序号具体为[-5:5],第三RU的序号具体为[19:44],第三子频带的序号具体为[45:1040],第四子频带的序号具体为[1041:2036],位于第四子频带右侧的保护子载波的序号具体为[2037:2047]。
示例性的,图11所示的子载波分布的具体结构可以参见图12。
(2)第四种子载波分布的设计2
对于采用第四种子载波分布的设计2的第一频带来说,第一子频带位于第一RU与第二子频带之间,第四子频带位于第三RU与第三子频带之间,第二RU位于第二子频带和第三子频带之间。
这样一来,在第一RU不用于承载数据时,第一RU所包括的子载波相当于保护子载波,从而增加了边缘保护带中保护子载波的数目。类似地,在第三RU不用于承载数据时,第三RU所包括的子载波相当于保护子载波,从而增加了边缘保护带中保护子载波的数目。
一种可能的设计中,第一频带包括P个保护子载波,P为正整数。其中,第一RU位于所述P个保护子载波与第一子频带之间。示例性的,P等于15。
一种可能的设计中,第一频带包括Q个保护子载波,Q为正整数。其中,第三RU位于所述Q个保护子载波与第四子频带之间。示例性的,Q等于14。
一种可能的设计中,第一频带还包括直流区域,第二RU包括首13RU和尾13RU,直流区域位于首13RU和尾13RU之间。
一种可能的设计中,第一频带的直流区域包括K个直流子载波,K为正整数。示例性的,K等于5。
一种可能的设计中,4个子频带中的每一个子频带均包括996个子载波。需要说明的是,子频带包括996个子载波,其具体描述可参见上文,此处不再赘述。
示例性的,参见图13,在第一频带中,位于第一RU左侧的保护子载波的序号具体为[-2048:-2034],第一RU的序号具体为[-2033:-2008],第一子频带的序号具体为 [-2007:-1012],第二子频带的序号具体为[-1011:-16],第二RU的序号具体为[-15:-3,3:15],5个直流子载波的序号具体为[-2:2],第三子频带的序号具体为[16:1011],第四子频带的序号具体为[1012:2007],第三RU的序号具体为[2005:2033],位于第三RU右侧的保护子载波的序号具体为[2034:2047]。
(3)第四种子载波分布的设计3
对于采用第四种子载波分布的设计3的第一频带来说,第一RU位于第一子频带和第二子频带之间,第二RU位于第二子频带和第三子频带之间,第三RU位于第三子频带和第四子频带之间。
这样一来,在第一RU不用于承载数据时,第一RU所包括的子载波相当于空子载波,从而增加了第一子频带和第二子频带之间的空子载波的数目,有利于第一子频带和第二子频带之间的保护。类似地,在第三RU不用于承载数据时,第三RU所包括的子载波相当于空子载波,从而增加了第三子频带和第四子频带之间的空子载波的数目,有利于第三子载波和第四子载波之间的保护。
可以理解的是,若第一频带采用第四种子载波分布的设计3,则4个子频带中任一个子频带不用于承载数据,均不会影响到其他子频带。
在本申请实施例中,对于采用第四种子载波分布的设计3的第一频带来说,若第一频带中的第二频域资源不用于承载数据,则第四种子载波分布可以相当于两个160MHz频带的子载波分布。对于这两个160MHz频带中的每一个160MHz频带来说,160MHz频带存在直流子载波,以及保护子载波。160MHz频带所包括的直流子载波占用第一RU或者第三RU所包括的子载波。160MHz频带所包括的保护子载波占用第二RU的一部分子载波。
一种可能的设计中,第一RU与第一子频带之间存在一个或多个空子载波。例如,第一RU与第一子频带之间存在1个空子载波。
一种可能的设计中,第一RU与第二子频带之间存在一个或多个空子载波。例如,第一RU与第二子频带之间存在1个空子载波。
一种可能的设计中,第二RU与第三子频带之间存在一个或多个空子载波。例如,第二RU与第三子频带之间存在1个空子载波。
一种可能的设计中,第二RU与第四子频带之间存在一个或多个空子载波。例如,第二RU与第三子频带之间存在1个空子载波。
一种可能的设计中,第一频带包括P个保护子载波,P为正整数。第一子频带位于所述P个保护子载波与第一RU之间。示例性的,P等于13。
一种可能的设计中,第一频带包括Q个保护子载波,Q为正整数。第四子频带位于所述Q个保护子载波与第二RU之间。示例性的,Q等于12。
一种可能的设计中,第一频带还包括直流区域,第二RU包括首13RU和尾13RU,直流区域位于首13RU和尾13RU之间。
一种可能的设计中,第一频带的直流区域包括K个直流子载波,K为正整数。示例性的,K等于5。
示例性的,参见图14,在第一频带中,位于第一子频带的左侧保护子载波的序号具体为[-2048:-2036],第一子频带的序号具体为[-2035:-1040],第一子频带与第一RU 之间的1个空子载波的序号为-1039,第一RU的序号具体为[-1038:-1013],第一RU与第二子频带之间的1个空子载波的序号具体为-1012,第二子频带的序号具体为[-1011:-16],第二RU的序号具体为[-15:-3,3:15],5个直流子载波的序号具体为[-2:2],第三子频带的序号具体为[16:1011],第三子频带与第三RU之间的1个空子载波的序号具体为1012,第三RU的序号具体为[1013:1038],第三RU与第四子频带之间的1个空子载波的序号为1039,第四子频带的序号具体为[1040:2035],位于第四子频带右侧的保护子载波的序号具体为[2036:2047]。
可以理解的是,图11至图14仅是对第四种子载波分布的示例,本申请实施例不限定第四种子载波分布的具体实现方式。
相比于采用第一种子载波分布/第二种子载波分布/第三种子载波分布的第一频带,采用第四种子载波分布的第一频带具有更多的数据与导频子载波,从而采用第四种子载波分布的第一频带可以承载更多的数据,具有更高的频谱利用率。
需要说明的是,本申请实施例不限制子频带所包括的空子载波的数目。本领域技术人员可以根据实际情况,调整子频带所包括的空子载波的数目。
需要说明的是,本申请实施例不限制子频带与第二频域资源的RU之间的空子载波的数目。本领域技术人员可以根据实际情况,调整子频带与第二频域资源的RU之间的空子载波的数目。
需要说明的是,本申请实施例不限制直流区域中直流子载波的数目。本领域技术人员可以根据实际情况,调整直流子载波的数目。
需要说明的是,本申请实施例不限制边缘保护带中保护子载波的数目。本领域技术人员可以根据实际情况,调整边缘保护带中保护子载波的数目。
在本申请实施例中,无论第一频带采用第二种子载波分布、第三种子载波分布、还是第四种子载波分布,在第一频带所包括的数据与导频子载波的数目不变的情况下,直流区域中的直流子载波的数目、保护子载波的数目、以及子频带的直流子载波的数目均是可以改变的。也即,第一频带可以通过减少直流区域中的直流子载波的数目,来增加保护子载波的数目和/或子频带的直流子载波的数目。或者,第一频带可以通过减少保护子载波的数目,来增加直流区域中的直流子载波的数目和/或子频带的直流子载波的数目。又或者,第一频带可以通过减少子频带的直流子载波的数目,来增加保护子载波的数目和/或直流区域中的直流子载波的数目。
实施例一
如图15所示,本申请实施例提供一种数据传输方法,该方法包括以下步骤:
S101、通信装置在第一频带上传输PPDU。
在本申请实施例中,通信装置可以是AP,也可以是STA。
可以理解的是,第一频带可以采用上述第一种子载波分布、第二种子载波分布、第三种子载波分布、或者第四种子载波分布。在数据传输过程中,第一频带具体采用何种子载波分布可以是接收端和发送端之间协商确定的,或者是标准中定义的,本申请实施例不限于此。
在通信装置为发送端的情况下,发送端生成PPDU;之后,发送端在第一频带上发送PPDU。
在通信装置为接收端的情况下,接收端在第一频带上接收PPDU;之后,接收端解析PPDU,以获取数据。
可以理解的是,图15所示的技术方案中,虽然第一频带可以采用第一种子载波分布、第二种子载波分布、第三种子载波分布、或者第四种子载波分布,但是,为了具有较高的频谱利用率,第一频带可以考虑采用第三种子载波分布或者第四种子载波分布。
实施例二
对于包括第一频域资源和第二频域资源的第一频带(也即采用第三种子载波分布或者第四种子载波分布的第一频带)来说,在数据传输过程中,若第一频带的第二频域资源用于承载数据,则接收端/发送端在传输流程中不能复用现有对80MHz频带的操作,增加了接收端/发送端在第一频带上传输数据的实现复杂度;若第一频带的第二频域资源不用于承载数据,则第一频带的频谱利用率较低。因此,在第一频带上传输数据时,如何平衡数据传输复杂度和频谱利用率是亟待解决的技术问题。
为了解决上述技术问题,如图16所示,为本申请实施例提供的一种频域资源指示方法,该方法包括以下步骤:
S201、发送端生成第一帧。
其中,发送端可以为AP,也可以为STA。相应的,接收端可以为AP,也可以为STA。本申请实施例对此不作限制。
需要说明的是,第一帧可以为数据帧、控制帧、或者管理帧,本申请实施例对此不作限制。
在本申请实施例中,第一帧包括第一指示信息。
设计1,第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据。
具体的,上述第一指示信息可以具有多种实现方式,本申请实施例不限于此。
例如,第一指示信息的取值为第一取值时,表示第一频带中的第二频域资源的全部频域资源用于承载数据;第一指示信息的取值为第二取值时,表示第一频带中的第二频域资源不用于承载数据。
又例如,在第二频域资源包括N个RU的情况下,第一指示信息可以包括N个比特,N个比特与第二频域资源中的N个RU一一对应,并且,一个比特用于指示与该比特对应的RU是否用于承载数据。可以理解的是,当该比特的取值为第三取值时,表示该比特对应的RU用于承载数据。当该比特的取值为第四取值时,表示该比特对应的RU不用于承载数据。
可选的,在单用户(single user,SU)的上行传输场景下,或者单用户的下行传输场景下,或者多用户(multi user,MU)的下行传输场景下,第一帧可以为数据帧。这种情况下,该第一帧所包括的第一指示信息,用于指示第二频域资源中的一部分或者全部频域资源是否用于承载第一帧中的数据。
需要说明的是,下行传输是指AP向STA发送无线帧。上行传输是指STA向AP发送无线帧。
可以理解的是,在单用户的上行传输场景下,或在单用户的下行传输场景下,第 一帧为SU PPDU。在多用户的下行传输场景下,第一帧为MU PPDU。
图17示例性的示出了一种PPDU的帧结构。如图17所示,该PPDU可包括传统短训练域(legacy-short training field,L-STF)、传统长训练域(legacy-long training field,L-LTF)、传统信令域(legacy-signal field,L-SIG)、用于自动检测的字段(field for autodetection)、EHT-SIG-A、EHT-SIG-B、极高吞吐率短训练字段(extremely high throughput-short training field,EHT-STF)、极高吞吐率长训练字段(extremely high throughput-long training field,EHT-LTF)、数据(data)、以及数据分组扩展(packet extension,PE)。
其中,L-STF、L-LTF、以及L-SIG均为传统前导字段(legacy preamble field)。
另外,第一频带的子载波分布可以适用于PPDU中的EHT-STF、EHT-LTF、data、PE。
可选的,基于设计1,第一指示信息可以位于EHT-SIG-A和/或EHT-SIG-B。
示例性的,在多用户的正交频分多址(orthogonal frequency division multiple access,OFDMA)下行传输场景下,第一指示信息可以承载于EHT-SIG-B中。在单用户的传输场景下,或者,在多用户的非OFMDA下行传输场景下,第一指示信息可以承载于EHT-SIG-A中。
可以理解的是,在多用户的OFDMA下行传输过程中,由于每次进行数据传输时,AP都会将频谱带宽划分为若干个RU,因此,AP在进行资源分配时,可以根据STA本身所能够同时支持传输的资源单元数目的能力,以及STA所需传输的业务量等信息,来决定为该STA分配多少个RU,以及每个RU的类型是什么。在一种可能的设计中,STA可在与AP进行关联的过程中,在关联请求帧中携带自身能够同时支持传输的资源单元数目的信息,从而使AP可根据STA的能力合理调度无线资源。在另一种可能的设计中,WLAN***也可以预先设定各STA同时支持传输的资源单元数目,或者,WLAN***也可以对STA同时支持传输的资源单元数目不做限制,而由AP根据自身的资源情况为各STA分配资源单元,本申请实施例对此不做具体限定。
下面针对多用户的OFMDA下行传输场景,对第一指示信息进行具体介绍。
EHT-SIG-B包括两个内容信道(content channel,CC)。两个CC均用于承载资源单元分配指示信息。为了便于描述,这两个内容信道可以记为CC1和CC2。
其中,CC1包含多个奇数20MHz的资源分配信息以及在这多个奇数20MHz上传输的站点信息。CC2包含多个偶数20MHz的资源分配信息以及在这多个偶数20MHz上传输的站点信息。
如图18所示,EHT-SIG-B包括16个第一资源分配域。这16个第一资源分配域对应第一频带中的16个242-tone RU。第一资源分配域用于指示对应的242-tone RU的频谱划分方式。需要说明的是,频谱划分方式是指242-tone RU可以划分为的不同类型的RU的组合的方式。
其中,奇数的242-tone RU所对应的第一资源分配域位于CC1,偶数的242-tone RU所对应的第一资源分配域位于CC2。需要说明的是,第一资源分配域可以有其他名称,例如RU分配子域(RU allocation subfield),本申请实施例不限于此。
CC1和CC2上还包括第二资源分配域。位于CC1的第二资源分配域对应第一子 频带中间的26-tone RU、以及第三子频带中间的26-tone RU。位于CC2的第二资源分配域对应第二子频带中间的26-tone RU、以及第四子频带中间的26-tone RU。第二资源分配域可以有其他名称,例如中间26-tone RU指示(center 26-tone RU indication),本申请实施例不限于此。
CC1和CC2上还包括第三资源分配域。第三资源分配域可以有其他名称,例如额外RU指示(additional RU signaling),本申请实施例不限于此。
一种可能的设计中,CC1上的第三资源分配域与CC2上的第三资源分配域相同。也即,CC1上的第三资源分配域是CC2上的第三资源分配域的复制。或者说,CC2上的第三资源分配域是CC1上的第三资源分配域的复制。这种情况下,第一指示信息即为CC1上的第三资源分配域;或者,第一指示信息即为CC2上的第三资源分配域。
另一种可能的设计中,CC1上的第三资源分配域不同于CC2上的第三资源分配域。这种情况下,第一指示信息包括CC1上的第三资源分配域和CC2上的第三资源分配域。
例如,第二频域资源包括N个RU,CC1上的第三资源分配域可以对应N个RU中的N
1个RU,CC2上的第三资源分配域可以对应N个RU中的N
2个RU。可以理解的是,N
1+N
2=N。N
1、N
2均为正整数。CC1上的第三资源分配域包括N
1个比特,N
1个比特与所述N
1个RU一一对应,N
1个比特中的每一个比特用于指示该比特对应的RU是否用于承载数据。CC2上的第三资源分配域包括N
2个比特,N
2个比特与所述N
2个RU一一对应,N
2个比特中的每一个比特用于指示该比特对应的RU是否用于承载数据。
CC1和CC2上还包括循环冗余码(cyclic redundancy code,CRC)和用于循环解码的尾部(tail)字段。
CC1和CC2上还包括逐个站点域(per user field)。按照RU分配的顺序,逐个站点域包括相应的多个站点字段(user field)。
需要说明的是,为了有效区分为不同STA分配的RU,每个站点字段中还包括STA的标识,参与同时传输的多个STA中的每个STA在接收到第一帧后,只需读取包含自身标识的那个站点字段中的信令信息,从而确定AP通过该站点字段为自己分配的RU。
可选的,在多用户的上行传输过程中,第一帧为触发帧。
如图19所示,触发帧可以包括公共域和逐个站点域。其中,公共域可以包括触发帧类型(trigger type)、上行长度(UL length)、上行带宽等字段。逐个站点域包括多个站点字段。每一个站点字段包括:关联标识(association identifier,AID)、资源单元分配(RU allocation)字段、上行编码类型字段、上行调制策略字段、上行双载波调制字段、空间流分配/随机接入资源单元信息、上行接收信号强度字段、保留(reserved)比特。其中,资源单元分配字段用于指示分配给该站点信息所对应的站点的一个RU。
可选的,如图20所示,第一指示信息可以位于触发帧的公共域中。也即,触发帧的公共域中可以新增一个字段,以承载第一指示信息。或者,触发帧的公共域可以利用现有的一个字段,以承载第一指示信息。
可选的,第一指示信息还可以相当于逐个站点域。也即,第一指示信息可以包含 多个站点字段。一种可能的设计中,多个站点字段中存在一个第二频域资源对应的站点字段。这样一来,当第二频域资源对应的站点字段的AID为第五取值,则表示第二频域资源不用于承载数据。当第二频域资源对应的站点字段的AID不为第五取值,则表示第二频域资源用于承载数据。另一种可能的设计中,多个站点字段中存在N个站点字段,所述N个站点字段与第二频域资源中的N个RU一一对应。对于N个站点字段中的每一个站点字段,当站点字段对应的AID为第五取值,则表示该站点字段对应的RU不用于承载数据;当站点字段对应的AID不为第五取值,则表示该站点字段对应的RU用于承载数据。示例性的,第五取值可以为2046,本申请实施例不限于此。
可选的,第一指示信息相当于接收端所对应的站点信息中的资源单元分配字段。在接收端所对应的站点信息中的资源单元分配字段用于指示第二频域资源中的RU,则说明第二频域资源中的RU用于承载数据。若接收端所对应的站点信息中的资源单元分配字段不用于指示第二频域中的RU,则说明第二频域资源中的RU不用于承载数据。
设计2,该第一指示信息用于指示数据传输所采用的频带的带宽大小,以及所述频带所采用的子载波分布。
可选的,在第一指示信息用于指示数据传输所采用的频带的带宽大小为320MHz或者160+160Mhz,并且所述频带采用上述第三种子载波分布或者第四种子载波分布,则表示第一频带中的第二频域资源用于承载数据。
可选的,在第一指示信息用于指示数据传输所采用的频带的带宽大小为320MHz或者160+160Mhz,并且所述频带采用上述第一种子载波分布或者第二种子载波分布,则表示第一频带不具有第二频域资源。
示例性的,第一指示信息可以如表1所示。
表1
可选的,基于设计2,第一指示信息可以位于EHT-SIG-A。
S202、发送端向接收端发送第一帧,以使得接收端接收到来自发送端的第一帧。
S203、接收端根据第一帧,接收/发送数据。
作为一种实现方式,接收端根据第一帧,确定该接收端所对应的频域资源。之后,接收端在该接收端对应的频域资源上接收/发送数据。
可选的,该接收端所对应的频域资源,是指该接收端所分配到的RU。
基于图16所示的技术方案,发送端可以综合考虑接收端的类型、业务类型等因素,以确定频谱利用率与数据传输复杂度之间哪一个更为重要。从而,在提高频谱利用率更为重要的情况下,发送端可以通过第一帧中的第一指示信息,指示第一频带中的第二频域资源中的部分或者全部频域资源用于承载数据。在降低数据传输复杂度更为重要的情况下,发送端可以通过第一帧中的第一指示信息,指示第一频带中的第二频域资源不用于承载数据。
上述主要从通信装置的角度对本申请实施例提供的方案进行了介绍。可以理解的是,通信装置为了实现上述功能,其包含了执行每一个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对装置进行功能模块的划分,例如,可以对应每一个功能划分每一个功能模块,也可以将两个或两个以上的功能集成在一个功能模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。下面以采用对应每一个功能划分每一个功能模块为例进行说明:
如图21所示,为本申请实施例提供一种通信装置,该通信装置包括:处理模块101和通信模块102。
在通信装置作为发送端的情况下,处理模块101用于生成PPDU,以及执行图16中的步骤S201。通信模块102用于执行图15中的步骤S101,和图16中的步骤S202。
在通信装置作为接收端的情况下,处理模块101用于解析PPDU。通信模块102,用于执行图15中的步骤S101,图16中的步骤S202和S203。
图22是本申请实施例所述的通信装置可能的产品形态的结构图。
作为一种可能的产品形态,本申请实施例所述的通信装置可以为通信设备,所述通信设备包括处理器201和收发器202。可选的,所述通信设备还包括存储介质203。
在通信装置作为发送端的情况下,处理器201用于生成PPDU,以及执行图16中的步骤S201。收发器202用于执行图15中的步骤S101,和图16中的步骤S202。
在通信装置作为接收端的情况下,处理器201用于解析PPDU。收发器202,用于执行图15中的步骤S101,图16中的步骤S202和S203。
作为另一种可能的产品形态,本申请实施例所述的通信装置也可以由通用处理器或者专用处理器来实现,也即俗称的芯片来实现。该芯片包括:处理电路201和收发管脚202。可选的,该芯片还可以包括存储介质203。
在当芯片用在发送端中的情况下,处理电路201用于生成PPDU,以及执行图16中的步骤S201。收发管脚202用于执行图15中的步骤S101,和图16中的步骤S202。
在芯片用在接收端中的情况下,处理电路201用于解析PPDU。收发管脚202,用 于执行图15中的步骤S101,图16中的步骤S202和S203。
作为另一种可能的产品形态,本申请实施例所述的通信装置也可以使用下述电路或者器件来实现:一个或多个现场可编程门阵列(field programmable gate array,FPGA)、可编程逻辑器件(programmable logic device,PLD)、控制器、状态机、门逻辑、分立硬件部件、任何其他适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。
应理解,所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带),光介质、或者半导体介质(例如固态硬盘)等。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。
应该理解到,在本申请所提供的几个实施例中所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个装置,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是一个物理单元或多个物理单元,即可以位于一个地方,或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个可读取存储介质中。基于这样的理解,本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该软件产品存储在一个存储介质中,包括若干指令用以使得一个设备(可以是单片机,芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因 此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (76)
- 一种数据传输方法,其特征在于,所述方法包括:在第一频带上传输物理层协议数据单元PPDU,所述第一频带的带宽大小为320MHz或者160+160MHz,所述第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。
- 根据权利要求1所述的数据传输方法,其特征在于,在第一频带上传输PPDU之前,包括:生成所述PPDU;所述在第一频带上传输PPDU,包括:在所述第一频带上发送所述PPDU。
- 根据权利要求1所述的数据传输方法,其特征在于,所述在第一频带上传输PPDU,包括:在所述第一频带上接收所述PPDU;在所述在第一频带上传输PPDU之后,还包括:解析所述PPDU。
- 根据权利要求1至3中任一项所述的数据传输方法,其特征在于,所述第二频域资源包括第一资源单元RU、第二RU、以及第三RU,所述第一RU、所述第二RU、以及所述第三RU在频谱上依次递增,所述第一RU、第二RU、以及第三RU均包括26个数据与导频子载波。
- 根据权利要求4所述的数据传输方法,其特征在于,所述四个子频带包括第一子频带、第二子频带、第三子频带和第四子频带,其中,所述第一子频带、所述第二子频带、所述第三子频带、以及所述第四子频带在频谱上依次递增。
- 根据权利要求5所述的数据传输方法,其特征在于,所述第一子频带位于所述第一RU与所述第二子频带之间,所述第二RU位于所述第二子频带与所述第三子频带之间,所述第四子频带位于所述第三子频带与所述第三RU之间。
- 根据权利要求6所述的数据传输方法,其特征在于,所述第一频带还包括直流DC区域,所述第二RU包括首13RU和尾13RU,所述DC区域位于所述首13RU和所述尾13RU之间。
- 根据权利要求7所述的数据传输方法,其特征在于,所述DC区域包括5个DC子载波。
- 根据权利要求6至8任一项所述的数据传输方法,其特征在于,所述第一频带还包括15个保护子载波,其中,所述第一RU位于所述15个保护子载波与所述第一子频带之间。
- 根据权利要求6至9任一项所述的数据传输方法,其特征在于,所述第一频带还包括14个保护子载波,其中,所述第三RU位于所述14个保护子载波与所述第四子频带之间。
- 根据权利要求5所述的数据传输方法,其特征在于,所述第一RU位于所述第一子频带和所述第二子频带之间,所述第二RU位于所述第二子频带与所述第三子频带之间,所述第三RU位于所述第三子频带和所述第四子频带之间。
- 根据权利要求11所述的数据传输方法,其特征在于,所述第一子频带与所述第一RU之间存在一个或多个空子载波。
- 根据权利要求11或12所述的数据传输方法,其特征在于,所述第一RU与所述第二子频带之间存在一个或多个空子载波。
- 根据权利要求11至13任一项所述的数据传输方法,其特征在于,所述第三子频带与所述第三RU之间存在一个或多个空子载波。
- 根据权利要求11至14任一项所述的数据传输方法,其特征在于,所述第三RU与所述第四子频带之间存在一个或多个空子载波。
- 根据权利要求11至15任一项所述的数据传输方法,其特征在于,所述第一频带包括13个保护子载波,所述第一子频带位于所述第一RU与所述13个保护子载波之间。
- 根据权利要求11至16任一项所述的数据传输方法,其特征在于,所述第一频带包括12个保护子载波,所述第四子频带位于所述第三RU与所述12个保护子载波之间。
- 根据权利要求11至17任一项所述的数据传输方法,其特征在于,所述第一频带还包括直流DC区域,第二RU包括首13RU和尾13RU,所述DC区域位于所述首13RU和所述尾13RU之间。
- 根据权利要求18所述的数据传输方法,其特征在于,所述DC区域包括5个DC子载波。
- 根据权利要求5所述的数据传输方法,其特征在于,所述第一RU位于所述第二RU与所述第二子频带之间,所述第二RU位于所述第一RU与所述第三RU之间,所述第三RU位于所述第二RU与所述第三子频带之间。
- 根据权利要求20所述的数据传输方法,其特征在于,所述第一频带还包括12个保护子载波,所述第一子频带位于所述12个保护子载波与所述第二子频带之间。
- 根据权利要求20或21所述的数据传输方法,其特征在于,所述第一频带还包括11个保护子载波,所述第四子频带位于所述11个保护子载波与所述第三子频带之间。
- 根据权利要求20至22任一项所述的数据传输方法,其特征在于,所述第一频带还包括直流DC区域,第二RU包括首13RU和尾13RU,所述DC区域位于所述首13RU和尾13RU之间。
- 根据权利要求23所述的数据传输方法,其特征在于,所述DC区域包括11个DC子载波。
- 一种通信装置,其特征在于,包括:通信模块,用于在第一频带上传输物理层协议数据单元PPDU,所述第一频带的带宽大小为320MHz或者160+160MHz,所述第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为大于52的正整数。
- 根据权利要求25所述的通信装置,其特征在于,所述通信装置还包括处理模块;所述处理模块,用于生成所述PPDU;所述通信模块,具体用于在所述第一频带上发送所述PPDU。
- 根据权利要求25所述的通信装置,其特征在于,所述通信装置还包括处理模块;所述通信模块,具体用于在所述第一频带上接收所述PPDU;所述处理模块,用于解析所述PPDU。
- 根据权利要求25至27中任一项所述的通信装置,其特征在于,所述第二频域资源包括第一资源单元RU、第二RU、以及第三RU,所述第一RU、所述第二RU、以及所述第三RU在频谱上依次递增,所述第一RU、第二RU、以及第三RU均包括26个数据与导频子载波。
- 根据权利要求28所述的通信装置,其特征在于,所述四个子频带包括第一子频带、第二子频带、第三子频带和第四子频带,其中,所述第一子频带、所述第二子频带、所述第三子频带、以及所述第四子频带在频谱上依次递增。
- 根据权利要求29所述的通信装置,其特征在于,所述第一子频带位于所述第一RU与所述第二子频带之间,所述第二RU位于所述第二子频带与所述第三子频带之间,所述第四子频带位于所述第三子频带与所述第三RU之间。
- 根据权利要求30所述的通信装置,其特征在于,所述第一频带还包括直流DC区域,第二RU包括首13RU和尾13RU,所述DC区域位于所述首13RU和所述尾13RU之间。
- 根据权利要求31所述的通信装置,其特征在于,所述DC区域包括5个DC子载波。
- 根据权利要求30至32任一项所述的通信装置,其特征在于,所述第一频带还包括15个保护子载波,其中,所述第一RU位于所述15个保护子载波与所述第一子频带之间。
- 根据权利要求30至33任一项所述的通信装置,其特征在于,所述第一频带还包括14个保护子载波,其中,所述第三RU位于所述14个保护子载波与所述第四子频带之间。
- 根据权利要求29所述的通信装置,其特征在于,所述第一RU位于所述第一子频带和所述第二子频带之间,所述第二RU位于所述第二子频带与所述第三子频带之间,所述第三RU位于所述第三子频带和所述第四子频带之间。
- 根据权利要求35所述的通信装置,其特征在于,所述第一频带还包括一个或多个空子载波,所述一个或多个空子载波位于所述第一RU与所述第一子频带之间。
- 根据权利要求35或36所述的通信装置,其特征在于,所述第一RU与所述第二子频带之间存在一个或多个空子载波。
- 根据权利要求35至37任一项所述的通信装置,其特征在于,所述第三RU与所述三子频带之间存在一个或多个空子载波。
- 根据权利要求35至38任一项所述的通信装置,其特征在于,所述第三RU与所述第四子频带之间存在一个或多个空子载波。
- 根据权利要求35至39任一项所述的通信装置,其特征在于,所述第一频带包括13个保护子载波,所述第一子频带位于所述第一RU与所述13个保护子载波之 间。
- 根据权利要求35至40任一项所述的通信装置,其特征在于,所述第一频带包括12个保护子载波,所述第四子频带位于所述第三RU与所述12个保护子载波之间。
- 根据权利要求35至41任一项所述的通信装置,其特征在于,所述第一频带还包括直流DC区域,第二RU包括首13RU和尾13RU,所述DC区域位于所述首13RU和所述尾13RU之间。
- 根据权利要求42所述的通信装置,其特征在于,所述DC区域包括5个DC子载波。
- 根据权利要求29所述的通信装置,其特征在于,所述第一RU位于所述第二RU与所述第二子频带之间,所述第二RU位于所述第一RU与所述第三RU之间,所述第三RU位于所述第二RU与所述第三子频带之间。
- 根据权利要求44所述的通信装置,其特征在于,所述第一频带还包括12个保护子载波,所述第一子频带位于所述12个保护子载波与所述第二子频带之间。
- 根据权利要求44或45所述的通信装置,其特征在于,所述第一频带还包括11个保护子载波,所述第四子频带位于所述11个保护子载波与所述第三子频带之间。
- 根据权利要求44至46任一项所述的通信装置,其特征在于,所述第一频带还包括直流DC区域,第二RU包括首13RU和尾13RU,所述DC区域位于所述首13RU和所述尾13RU之间。
- 根据权利要求47所述的通信装置,其特征在于,所述DC区域包括11个DC子载波。
- 一种通信装置,其特征在于,包括处理器和通信接口,所述处理器用于执行权利要求1至24中任一项所述的方法中的处理操作,所述通信接口用于执行权利要求1至24中任一项所述的方法中的通信操作。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质包括计算机指令,当所述计算机指令在计算机上运行时,使得计算机执行如权利要求1至24任一项所述的数据传输方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括计算机指令,当所述计算机程序产品在计算机上运行时,使得计算机执行如权利要求1至24任一项所述的数据传输方法。
- 一种芯片,其特征在于,所述芯片包括处理电路和收发管脚;所述处理电路用于执行权利要求1至24中任一项所述的方法中的处理操作,所述收发管脚用于执行权利要求1至24中任一项所述的方法中的通信操作。
- 一种频域资源指示方法,其特征在于,包括:生成第一帧,所述第一帧包括第一指示信息,所述第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;所述第一频带的带宽大小为320MHz或者160+160MHz,所述第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子 载波,Y为正整数;发送所述第一帧。
- 根据权利要求53所述的方法,其特征在于,所述第一指示信息的取值为第一取值时,表示所述第一频带中的所述第二频域资源的全部频域资源用于承载数据;所述第一指示信息的取值为第二取值时,表示所述第一频带中的所述第二频域资源不用于承载数据。
- 根据权利要求53或54所述的方法,其特征在于,在所述第二频域资源包括N个RU的情况下,所述第一指示信息可以包括N个比特,所述N个比特与所述第二频域资源中的N个RU一一对应,所述N个比特中的一个比特用于指示对应的RU是否用于承载数据。
- 根据权利要求53至55任一项所述的方法,其特征在于,所述第一帧为极高吞吐率EHT PPDU,所述第一指示信息承载于所述第一帧中的极高吞吐量信令字段A。
- 根据权利要求53至55任一项所述的方法,其特征在于,所述第一帧为触发帧,所述第一指示信息位于所述第一帧中的公共域。
- 一种频域资源指示方法,其特征在于,包括:接收第一帧,所述第一帧包括第一指示信息,所述第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;所述第一频带的带宽大小为320MHz或者160+160MHz,所述第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为正整数;根据所述第一帧,接收或者发送数据。
- 根据权利要求58所述的方法,其特征在于,所述第一指示信息的取值为第一取值时,表示所述第一频带中的所述第二频域资源的全部频域资源用于承载数据;所述第一指示信息的取值为第二取值时,表示所述第一频带中的所述第二频域资源不用于承载数据。
- 根据权利要求58或59所述的方法,其特征在于,在所述第二频域资源包括N个RU的情况下,所述第一指示信息可以包括N个比特,所述N个比特与所述第二频域资源中的N个RU一一对应,所述N个比特中的一个比特用于指示对应的RU是否用于承载数据。
- 根据权利要求58至60任一项所述的方法,其特征在于,所述第一帧为极高吞吐率EHT PPDU,所述第一指示信息承载于所述第一帧中的极高吞吐量信令字段A。
- 根据权利要求58至60任一项所述的方法,其特征在于,所述第一帧为触发帧,所述第一指示信息位于所述第一帧中的公共域。
- 一种通信装置,其特征在于,包括处理模块和通信模块;所述处理模块,用于生成第一帧,所述第一帧包括第一指示信息,所述第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载 数据;所述第一频带的带宽大小为320MHz或者160+160MHz,所述第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为正整数;所述通信模块,用于发送所述第一帧。
- 根据权利要求63所述的通信装置,其特征在于,所述第一指示信息的取值为第一取值时,表示所述第一频带中的所述第二频域资源的全部频域资源用于承载数据;所述第一指示信息的取值为第二取值时,表示所述第一频带中的所述第二频域资源不用于承载数据。
- 根据权利要求63或64所述的通信装置,其特征在于,在所述第二频域资源包括N个RU的情况下,所述第一指示信息可以包括N个比特,所述N个比特与所述第二频域资源中的N个RU一一对应,所述N个比特中的一个比特用于指示对应的RU是否用于承载数据。
- 根据权利要求63至65任一项所述的通信装置,其特征在于,所述第一帧为极高吞吐率EHT PPDU,所述第一指示信息承载于所述第一帧中的极高吞吐量信令字段A。
- 根据权利要求63至65任一项所述的通信装置,其特征在于,所述第一帧为触发帧,所述第一指示信息位于所述第一帧中的公共域。
- 一种通信装置,其特征在于,包括处理模块和通信模块;所述通信模块,用于接收第一帧,所述第一帧包括第一指示信息,所述第一指示信息用于指示第一频带中的第二频域资源中的一部分或者全部频域资源是否用于承载数据;所述第一频带的带宽大小为320MHz或者160+160MHz,所述第一频带包括第一频域资源和第二频域资源,所述第一频域资源包括四个子频带,所述四个子频带中的每一个子频带包括X个子载波,X为大于等于996的正整数,所述第二频域资源包括Y个数据与导频子载波,Y为正整数;所述处理模块,用于根据所述第一帧,接收或者发送数据。
- 根据权利要求68所述的通信装置,其特征在于,所述第一指示信息的取值为第一取值时,表示所述第一频带中的所述第二频域资源的全部频域资源用于承载数据;所述第一指示信息的取值为第二取值时,表示所述第一频带中的所述第二频域资源不用于承载数据。
- 根据权利要求68或69所述的通信装置,其特征在于,在所述第二频域资源包括N个RU的情况下,所述第一指示信息可以包括N个比特,所述N个比特与所述第二频域资源中的N个RU一一对应,所述N个比特中的一个比特用于指示对应的RU是否用于承载数据。
- 根据权利要求68至70任一项所述的通信装置,其特征在于,所述第一帧为极高吞吐率EHT PPDU,所述第一指示信息承载于所述第一帧中的极高吞吐量信令字段A。
- 根据权利要求68至70任一项所述的通信装置,其特征在于,所述第一帧为触发帧,所述第一指示信息位于所述第一帧中的公共域。
- 一种通信装置,其特征在于,包括处理器和通信接口,所述处理器用于执行权利要求53至62中任一项所述的方法中的处理操作,所述通信接口用于执行权利要求53至62中任一项所述的方法中的通信操作。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质包括计算机指令,当所述计算机指令在计算机上运行时,使得计算机执行如权利要求53至62任一项所述的数据传输方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括计算机指令,当所述计算机程序产品在计算机上运行时,使得计算机执行如权利要求53至62任一项所述的数据传输方法。
- 一种芯片,其特征在于,所述芯片包括处理电路和收发管脚;所述处理电路用于执行权利要求53至62中任一项所述的方法中的处理操作,所述收发管脚用于执行权利要求53至62中任一项所述的方法中的通信操作。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20860943.8A EP4024724A4 (en) | 2019-09-05 | 2020-08-31 | DATA TRANSMISSION METHOD AND DEVICE |
US17/684,083 US20220263611A1 (en) | 2019-09-05 | 2022-03-01 | Data transmission method and apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910838828.7A CN112448803B (zh) | 2019-09-05 | 2019-09-05 | 数据传输方法及装置 |
CN201910838828.7 | 2019-09-05 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/684,083 Continuation US20220263611A1 (en) | 2019-09-05 | 2022-03-01 | Data transmission method and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021043111A1 true WO2021043111A1 (zh) | 2021-03-11 |
Family
ID=74733219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/112666 WO2021043111A1 (zh) | 2019-09-05 | 2020-08-31 | 数据传输方法及装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220263611A1 (zh) |
EP (1) | EP4024724A4 (zh) |
CN (1) | CN112448803B (zh) |
WO (1) | WO2021043111A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2023505097A (ja) * | 2019-11-29 | 2023-02-08 | エルジー エレクトロニクス インコーポレイティド | 無線lanシステムにおけるマルチruを介してppduを受信する方法および装置 |
CN113132072A (zh) * | 2020-01-11 | 2021-07-16 | 华为技术有限公司 | 打孔信息的指示方法及通信装置 |
EP4181603A4 (en) * | 2020-09-03 | 2024-01-24 | LG Electronics Inc. | METHOD AND DEVICE FOR ALLOCATING RESOURCES BY LIMITING RU AND MRU FOR A STA OPERATING AT ONLY 20 MHZ IN A WIRELESS LAN SYSTEM |
CN115883010A (zh) * | 2021-09-29 | 2023-03-31 | 华为技术有限公司 | 一种通信方法、装置及*** |
CN117134871A (zh) * | 2022-05-19 | 2023-11-28 | 华为技术有限公司 | 基于物理层协议数据单元的通信方法及装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107005385A (zh) * | 2014-10-29 | 2017-08-01 | 三星电子株式会社 | 在无线通信***中使用交错保护正交频分复用的方法和装置 |
CN107079431A (zh) * | 2014-08-06 | 2017-08-18 | Lg 电子株式会社 | 无线lan中分配用于发送或者接收数据的无线资源的方法和设备 |
US10153877B2 (en) * | 2015-10-19 | 2018-12-11 | Lg Electronics Inc. | Method and apparatus for transmitting feedback frame in wireless local area network system |
CN110176939A (zh) * | 2018-02-20 | 2019-08-27 | 安华高科技股份有限公司 | 无线通信装置及方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3664351B1 (en) * | 2015-02-25 | 2021-03-31 | LG Electronics Inc. | Method and device for receiving signal by using resource unit including plurality of subcarriers |
US10111270B2 (en) * | 2015-05-26 | 2018-10-23 | Lg Electronics Inc. | Method and apparatus for receiving signal by using resource units in a wireless local area system |
KR20170065001A (ko) * | 2015-12-02 | 2017-06-12 | 엘지전자 주식회사 | 무선랜 시스템에서 자원유닛을 지시하는 제어정보를 설정하는 방법 및 장치 |
US10863456B2 (en) * | 2017-10-11 | 2020-12-08 | Qualcomm Incorporated | Systems and methods of communicating via sub-bands in wireless communication networks |
US11539482B2 (en) * | 2018-05-04 | 2022-12-27 | Intel Corporation | Enhanced resource allocation for wireless communications |
-
2019
- 2019-09-05 CN CN201910838828.7A patent/CN112448803B/zh active Active
-
2020
- 2020-08-31 EP EP20860943.8A patent/EP4024724A4/en active Pending
- 2020-08-31 WO PCT/CN2020/112666 patent/WO2021043111A1/zh unknown
-
2022
- 2022-03-01 US US17/684,083 patent/US20220263611A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107079431A (zh) * | 2014-08-06 | 2017-08-18 | Lg 电子株式会社 | 无线lan中分配用于发送或者接收数据的无线资源的方法和设备 |
CN107005385A (zh) * | 2014-10-29 | 2017-08-01 | 三星电子株式会社 | 在无线通信***中使用交错保护正交频分复用的方法和装置 |
US10153877B2 (en) * | 2015-10-19 | 2018-12-11 | Lg Electronics Inc. | Method and apparatus for transmitting feedback frame in wireless local area network system |
CN110176939A (zh) * | 2018-02-20 | 2019-08-27 | 安华高科技股份有限公司 | 无线通信装置及方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4024724A4 |
Also Published As
Publication number | Publication date |
---|---|
US20220263611A1 (en) | 2022-08-18 |
CN112448803A (zh) | 2021-03-05 |
EP4024724A1 (en) | 2022-07-06 |
EP4024724A4 (en) | 2022-11-02 |
CN112448803B (zh) | 2023-05-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021043111A1 (zh) | 数据传输方法及装置 | |
KR101404275B1 (ko) | Vht 무선랜 시스템에서 ppdu의 채널 할당 방법 및이를 지원하는 스테이션 | |
US10200224B2 (en) | Method and apparatus for transmitting data in non-licensed band | |
CN110769508B (zh) | 信号传输方法、装置、终端设备、网络设备及*** | |
JP7032418B2 (ja) | データ伝送方法および装置 | |
JP2017524303A (ja) | 無線lanにおけるデータの送信または受信のための無線リソースを割り当てる方法及び装置 | |
US10911978B2 (en) | Data transmission method, device, and communications system | |
AU2021206097B2 (en) | Information indication method and communications apparatus | |
AU2021294097B2 (en) | Resource indication method, access point, and station | |
WO2017076068A1 (zh) | 一种无线局域网中频率资源指示的方法和装置 | |
US11323217B2 (en) | Multi-band width tone plan for OFDMA in a wireless network | |
KR20210150540A (ko) | 다수의 주파수 세그먼트에서의 동시 전송 | |
US20230007657A1 (en) | Method and device in nodes used for wireless communication | |
WO2019223781A1 (zh) | 通信方法和装置 | |
WO2022156567A1 (zh) | 信息传输方法、装置、终端设备、网络设备及存储介质 | |
JP7525667B2 (ja) | リソースインジケーション方法、アクセスポイント、及びステーション | |
WO2022252679A1 (zh) | 一种物理层协议数据单元、触发帧的传输方法以及装置 | |
WO2013029427A1 (zh) | 一种配置分片载波后rbg的确定方法及装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20860943 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2020860943 Country of ref document: EP Effective date: 20220330 |