WO2022122006A1 - 一种信道划分信息指示方法及通信装置 - Google Patents

一种信道划分信息指示方法及通信装置 Download PDF

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Publication number
WO2022122006A1
WO2022122006A1 PCT/CN2021/136972 CN2021136972W WO2022122006A1 WO 2022122006 A1 WO2022122006 A1 WO 2022122006A1 CN 2021136972 W CN2021136972 W CN 2021136972W WO 2022122006 A1 WO2022122006 A1 WO 2022122006A1
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WIPO (PCT)
Prior art keywords
user information
information field
subfield
trigger frame
field
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PCT/CN2021/136972
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English (en)
French (fr)
Inventor
于健
潘金哲
郭宇宸
狐梦实
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华为技术有限公司
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Priority to EP21902711.7A priority Critical patent/EP4247085A4/en
Publication of WO2022122006A1 publication Critical patent/WO2022122006A1/zh
Priority to US18/332,391 priority patent/US20230328773A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • 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
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a channel division information indication method and a communication device.
  • Wireless local area network has been developed for many generations, including 802.11a/b/g, 802.11n, 802.11ac, 802.11ax, and 802.11be, which is currently under discussion.
  • the 802.11n standard is called high throughput (HT)
  • the 802.11ac standard is called very high throughput (VHT)
  • the 802.11ax standard is called high efficiency (HE)
  • the 802.11be standard It is called extremely high throughput (EHT).
  • the 11be under discussion adds a new 6GHz band and increases the maximum continuous bandwidth from 160MHz in 11ax to 320MHz, further increasing the system's throughput.
  • the channel division of the 320MHz bandwidth mode in the 6GHz band is shown in Figure 1.
  • 11be defines a channel with a bandwidth of 320MHz composed of two consecutive 160MHz bandwidths, and a 160MHz bandwidth composed of two consecutive 80MHz bandwidths.
  • There are two channel division methods for 320MHz namely 320-1 with PPDU channel center frequencies of 31/95/159 and 320-2 with PPDU center frequencies of 63/127/191.
  • the first 320MHz consists of the first 160MHz and the second 160MHz
  • the second 320MHz consists of the third 160MHz and the fourth 160MHz.
  • the three 320MHz are formed by the fifth 160MHz and the sixth 160MHz.
  • the channel division method of 320MHz is 320-2
  • the first 320MHz is composed of the second 160MHz and the third 160MHz
  • the second 320MHz is composed of the fourth 160MHz and the fifth 160MHz
  • the third 320MHz is composed of the sixth
  • the first 160MHz and the seventh 160MHz constitute.
  • the primary 20MHz channel (or simply the primary channel, primary 20MHz, P20), the secondary 20MHz channel (secondary 20MHz, S20), the primary/secondary 40MHz channel, the primary/secondary 80MHz channel, and the primary/secondary 160MHz channel are further defined.
  • the main 20MHz channel can be any one of the entire bandwidth, and there is no fixed relationship. Taking the bandwidth of 320Mhz as an example, as shown in FIG. 2 , the 40MHz channel including the P20 channel is called the P40 channel. An 80MHz channel including a P20 channel is called a P80 channel. A 160MHz channel including a P20 channel is called a P160 channel.
  • the secondary 20MHz is another 20MHz channel in addition to the primary 20MHz channel in the primary 40MHz channel.
  • the secondary 40MHz is another 40MHz channel in addition to the primary 40MHz channel in the primary 80MHz channel.
  • the secondary 80MHz is another 80MHz channel in addition to the primary 80MHz channel in the primary 160MHz channel.
  • the secondary 160MHz is another 160MHz channel in addition to the primary 160MHz channel in the 320MHz channel.
  • WLAN devices access points (APs) and stations (stations, STAs) work in unlicensed spectrum, and obtain opportunities to transmit PHY protocol data units (PPDUs) through competing channels.
  • APs access points
  • STAs stations
  • UORA random access, UORA
  • the AP will send a trigger frame to one or more STAs to allocate an RA-RU to one or more STAs through the trigger frame.
  • the user information field of the trigger frame includes an AID12 subfield and an RU allocation (RU allocation) subfield.
  • B26-B31 of the user information field of the trigger frame is the spatial stream allocation/RA-RU information (spatial stream allocation/random access-resource unit information) subfield.
  • the value of the AID12 subfield in the user information field is 0 or 2045, it indicates that B26-B31 of the user information field are RA-RU information (random access-resource unit information) subfields. Otherwise, B26-B31 of the user information field represent the spatial stream allocation subfield.
  • the associated STA or the non-associated STA When the associated STA or the non-associated STA reads that the AID12 subfield is 0 or 2045, it will perform random access transmission according to the RU allocation subfield and the RU indicated in the RA-RU information.
  • the RU allocation subfield is used to indicate the size and location of the first RA-RU allocated for the STA, and the structure of the RA-RU information subfield is shown in Figure 4 .
  • the number Of RA-RU subfield is used to indicate the number of consecutive RA-RUs allocated.
  • the value of the number of random access resource units subfield is equal to the number of consecutive RA-RUs minus one.
  • the indication method of the RU allocation subfield is that when the bandwidth is 160MHz, the first bit of the 8 bits is used to indicate whether the indicated RA-RU is located in the primary 80MHz or the secondary 80MHz, and then the other 7 bits are used to indicate whether the RA-RU is within the 80MHz. which RA-RU.
  • the bandwidth is 20MHz, 40MHz or 80MHz
  • the first bit of the 8 bits is used to indicate that the indicated RA-RU is located in the main 80MHz, and then the other 7 bits are used to indicate which RA-RU within the 80MHz.
  • Channel division information is usually carried in a beacon frame or a probe response frame.
  • the STA can determine the position of 80 MHz indicated by the first bit in the RU allocation subfield based on the channel division information.
  • non-associated EHT STAs cannot receive beacon frames or probe response frames. Therefore, the non-associated EHT STA cannot identify the channel division, and cannot determine, based on the channel division, in which 320MHz bandwidth the 80MHz indicated by the first bit in the RU allocation subfield is located, and thus cannot determine the first bit in the RU allocation subfield.
  • the indicated 80MHz location, and thus the RA-RU allocated by the AP cannot be determined.
  • the present application provides a channel division information indication method and a communication device, which are helpful for an unassociated EHT STA to identify a channel division situation.
  • the present application provides a method for indicating channel division information, the method includes: an access point generates a trigger frame, the trigger frame includes a first user information field, and the first user information field is used for an unassociated super
  • the high throughput station EHTSTA allocates a random access resource unit RA-RU, and the trigger frame carries indication information for indicating channel division information; the access point sends the trigger frame to the station. It can be seen that, based on the method described in the first aspect, it is beneficial for the unassociated EHT STA to identify the channel division situation.
  • the present application provides a method for indicating channel division information.
  • the method includes: a station receives a trigger frame sent by an access point, where the trigger frame includes a first user information field, and the first user information field is used for
  • the associated ultra-high throughput station EHTSTA allocates a random access resource unit RA-RU, and the trigger frame carries indication information for indicating channel division information; the station reads the channel division information from the trigger frame. It can be seen that, based on the method described in the second aspect, it is beneficial for the unassociated EHT STA to identify the channel division situation.
  • the first user information field further includes a resource unit RU allocation subfield, where the RU allocation subfield is used to allocate the RA-RU; the station may also base on the channel division information and the RU
  • the allocation subfield reads the location of the RA-RU, and random access transmission is performed based on the location of the RA-RU. Based on this possible implementation, the station can accurately determine the location of the RA-RU, and perform random access transmission based on the location of the RA-RU.
  • the first user information field includes a first association identifier AID12 subfield, the value of the first AID12 subfield is a first value, and the first value is in 2008-2044 A value of or the first value of 1-2007 is not allocated to the AID12 value of the associated STA, and the first AID12 subfield is used to indicate that the first user information field is used to allocate the RA-RU for the non-associated EHTSTA.
  • the value of the AID12 subfield reserved in 802.11ax can be used to indicate that the user information field is used for allocating RA-RUs to non-associated EHTSTAs, which can more flexibly allocate RA-RUs to non-associated EHTSTAs .
  • the bits of the indication information are located in the first user information field. If the bits of the indication information are located in the public information field, even if there is no unassociated EHT STA that needs random access, the indication information will always be carried in the public information field. By placing the bits of the indication information in the first user information field, the indication information can be carried in the trigger frame only when there is an unassociated EHT STA that needs random access, which makes the carrying of the indication information more flexible, which is beneficial to the public Information fields carry more additional information.
  • the trigger frame further includes a second user information field, the second user information field includes a second modulation and coding strategy MCS subfield, and the second MCS subfield includes 4 bits , the second user information field is used to indicate the information of the non-RA-RU STA; the first user information field includes a first MCS subfield, and the length of the first MCS subfield is less than 4 bits.
  • the bits of the indication information can be carried by the first user information field without changing the total number of bits of the first user information field.
  • the trigger frame further includes a second user information field, the second user information field includes a high-efficiency HE/EHT format subfield, and the second user information field is used to indicate a non-RA - Information of the RU STA; the bit position of the indication information in the first user information field is the same as the bit position of the HE/EHT format subfield in the second user information field.
  • the bits of the indication information can be carried by the first user information field without changing the total number of bits of the first user information field.
  • the first user information field includes a trigger frame related user information subfield, and the bits of the indication information are located in the trigger frame related user information field. Based on this possible implementation, the bits of the indication information can be carried by the first user information field without changing the total number of bits of the first user information field.
  • the trigger frame further includes a third user information field
  • the third user information field includes a second AID12 field and a first field
  • the value of the second AID12 is a second value
  • the second AID12 field is used to indicate that the bits of the indication information are located in the first field
  • the second value is a value in 2008-2044 or a value in 1-2007 that is not assigned to the AID12 of the associated STA
  • the second value is different from the first value.
  • a special user information field is used alone to carry the bits of the indication information, so that the design of the first user information field for the unassociated EHT STA does not need to be complicated, and the reception of the first user information by the receiver is simplified. Interpretation of fields.
  • the channel division information includes a channel division mode of 320 MHz
  • the first user information field further includes a resource unit allocation subfield and a low/high 160MHz segment subfield
  • the low/high 160MHz segment subfield is used to indicate that the RA-RU is located at the lower 160MHz or the upper 160MHz
  • the first bit of the resource element allocation subfield indicates the lower 80MHz or the upper 80MHz of the 160MHz indicated by the low/high 160MHz segment subfield.
  • the indication information does not need to indicate the location of the main 80MHz, which is beneficial to reduce the overhead of indication signaling.
  • the first user information field includes a first association identification AID12 subfield, the value of the first AID12 subfield is 2045, and the first AID12 subfield is used to indicate the first
  • the User Information field is used to allocate RA-RUs to non-associated EHTSTAs. Based on this possible implementation, there is no need to additionally design the user information field of the UORA for the EHT STA.
  • the trigger frame further includes a common information field
  • the first user information field includes a trigger frame-related user information subfield
  • the indication information includes multiple bits
  • the bits of the indication information Located at one or more of the following locations: the common information field, the location of the reserved bits in the first user information field, or the location of the reserved bits in the related user information subfield of the trigger frame.
  • the trigger frame further includes a third user information field
  • the third user information field includes a second AID12 field and a first field
  • the value of the second AID12 is a second value
  • the second AID12 field is used to indicate that the bits of the indication information are located in the first field
  • the second value is one of 2008-2044
  • the second value is one of 1-2007 that is not assigned to the associated STA's AID12 value
  • a special user information field is used alone to carry the bits of the indication information, so that the design of the first user information field for the unassociated EHT STA does not need to be complicated, and the reception of the first user information by the receiver is simplified. Interpretation of fields.
  • the trigger frame further includes a common information field, and bits indicating information are located in the common information field.
  • the channel division information includes one or more of the following information: a channel division mode of 320 MHz and a location of the main 80 MHz.
  • the present application provides a communication device, and the device may be an access point, a device in an access point, or a device that can be matched and used with an access point.
  • the communication device may also be a chip system.
  • the communication device may perform the method described in the first aspect.
  • the functions of the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the unit may be software and/or hardware.
  • the present application provides a communication device, and the device may be a site, a device in a site, or a device that can be matched and used with a site.
  • the communication device may also be a chip system.
  • the communication device can perform the method of the second aspect.
  • the functions of the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the unit may be software and/or hardware.
  • the present application provides a communication apparatus, the communication apparatus includes a processor, and when the processor calls a computer program in a memory, the method according to the first aspect or the second aspect is performed.
  • the present application provides a communication device, the communication device includes a processor and a memory, the memory is used for storing computer-executed instructions; the processor is used for executing the computer-executed instructions stored in the memory, to The communication device is caused to perform the method of the first aspect or the second aspect.
  • the present application provides a communication device, the communication device includes a processor, a memory, and a transceiver, the transceiver is used for receiving a signal or sending a signal; the memory is used for storing a program code; the The processor is configured to call the program code from the memory to execute the method according to the first aspect or the second aspect.
  • the present application provides a communication device, the communication device includes a processor and an interface circuit, the interface circuit is configured to receive a code instruction and transmit it to the processor; the processor executes the code instructions to perform the method of the first aspect or the second aspect.
  • an embodiment of the present application provides a system, where the system includes the communication device provided in the third aspect or the fourth aspect.
  • the present application provides a computer-readable storage medium for storing instructions that, when executed, cause the method according to the first aspect or the second aspect to be accomplish.
  • the embodiments of the present application provide a computer program or computer program product, including codes or instructions, when the codes or instructions are run on a computer, the computer executes the method described in the first aspect or the second aspect. accomplish.
  • 1 is a schematic structural diagram of a conventional channel division
  • 2 is a schematic diagram of another existing channel division
  • FIG. 3 is a schematic structural diagram of a user information field of an existing trigger frame
  • FIG. 4 is a schematic structural diagram of a random access resource unit information subfield in a user information field of an existing trigger frame
  • FIG. 5 is a schematic diagram of a system architecture provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a channel division message indication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a relative positional relationship between a main 80MHz and an 80MHz where a trigger frame is located, provided by an embodiment of the present application;
  • FIG. 8 is a schematic structural diagram of a trigger frame provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another trigger frame provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a trigger frame-related user information subfield provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of another trigger frame provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a public information field provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a trigger frame provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of another trigger frame provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • At least one (item) means one or more
  • plural means two or more
  • at least two (item) means two or three and three
  • “and/or” is used to describe the relationship of related objects, indicating that there can be three kinds of relationships, for example, “A and/or B” can mean: only A exists, only B exists, and both A and B exist three A case where A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, c can be single or multiple.
  • Embodiments of the present application provide a channel division information indication method and a communication device.
  • the method provided in the embodiment of the present application is applied in a wireless communication system.
  • the wireless communication system can be a wireless local area network (wireless local area network, WLAN) or a cellular network, and the method can be implemented by a communication device in the wireless communication system or a chip or a processor in the communication device.
  • the communication device supports 802.11be or a standard after 802.11be.
  • FIG. 5 is a schematic diagram of a system architecture provided by an embodiment of the present application.
  • the system architecture includes an access point (AP) and one or more sites.
  • the stations shown in FIG. 5 may be unassociated ultra-high throughput stations (EHTSTAs).
  • a non-associated EHT STA refers to an EHT STA that does not join the cell where the access point resides.
  • EHT STA refers to a site that supports the 802.11be standard.
  • FIG. 5 takes the system architecture including one access point and three stations as an example for illustration. Of course, the system architecture may also include more access points and stations. Alternatively, only two sites may be included in the system architecture.
  • the access point can be the access point for terminal equipment (such as mobile phone) to enter the wired (or wireless) network. It is mainly deployed in homes, buildings and campuses, with a typical coverage radius ranging from tens of meters to hundreds of meters. Can be deployed outdoors.
  • the access point is equivalent to a bridge connecting the wired network and the wireless network.
  • the main function is to connect the various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the access point may be a terminal device (such as a mobile phone) or a network device (such as a router) with a wireless fidelity (wreless-fidelity, WiFi) chip.
  • the access point may be a device supporting the 802.11be standard or a standard after 802.11be.
  • the station can be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • a site can be a mobile phone that supports WiFi communication, a tablet that supports WiFi communication, a set-top box that supports WiFi communication, a smart TV that supports WiFi communication, a smart wearable device that supports WiFi communication, or a smart wearable that supports WiFi communication.
  • Vehicle communication equipment and computers that support WiFi communication functions, etc.
  • access points and sites can be devices used in the Internet of Vehicles, IoT nodes, sensors, etc. in the Internet of Things, smart cameras in smart homes, smart remote controls, smart water meters, electricity meters, etc., as well as sensors in smart cities, etc. .
  • the channel division information indication method and communication device provided by the present application are further introduced below:
  • FIG. 6 is a schematic flowchart of a method for indicating channel division information provided by an embodiment of the present application.
  • the channel division information indication method includes the following steps 601 to 603 , and the execution subject of the method shown in FIG. 6 may be an access point and a station. Alternatively, the execution body of the method shown in FIG. 6 may be a chip in the access point and a chip in the station.
  • FIG. 6 takes the access point and the station as the execution subject as an example for description. in:
  • the access point generates a trigger frame, where the trigger frame includes a first user information field, where the first user information field is used to allocate an RA-RU to an unassociated EHT STA, and the trigger frame carries an indication for indicating channel division information information.
  • the trigger frame may include one or more first user information fields.
  • Each first user information field is used for allocating one RA-RU or multiple consecutive RA-RUs for the non-associated EHT STA.
  • RA-RU is used for random access transmission by non-associated EHT STAs to obtain the transmission opportunity of PPDU.
  • the first user information field may include a RU allocation subfield.
  • the first user information field allocates the first RA-RU to a non-associated EHT STA through the RU allocation subfield.
  • the first bit of the RU allocation subfield indicates that the RA-RU is located at a certain 80MHz (such as primary 80MHz or secondary 80MHz, or absolute frequency low frequency 80MHz or high frequency 80MHz), and the other 7 bits are used to indicate The position of the first allocated RA-RU within 80 MHz indicated by the first bit, optionally, the size of the first RA-RU may also be indicated.
  • the first user information field when the bandwidth is 320MHz, the first user information field further includes a master/slave 160MHz segment subfield.
  • the master/slave 160MHz segment subfield is used to indicate that the RA-RU is located at the master 160MHz or the slave 160MHz. If the master/slave 160MHz segment subfield indicates a master 160MHz, the first bit of the RU allocation subfield indicates that the RA-RU is located in the master 80MHz or slave 80MHz in the master 160MHz. If the master/slave 160MHz segment subfield indicates the secondary 160MHz, the first bit of the RU allocation subfield indicates that the RA-RU is located in the high frequency 80MHz or the low frequency 80MHz in the secondary 160MHz.
  • the first user information field when the bandwidth is 320MHz, the first user information field further includes a low/high 160MHz segment subfield.
  • the low/high 160MHz segment subfield is used to indicate that the RA-RU is located at high frequency 160MHz or low frequency 160MHz.
  • the first bit of the RU allocation subfield indicates that the RA-RU is located at high frequency 80MHz or low frequency 80MHz in the 160MHz indicated by the low/high 160MHz segment subfield.
  • the first user information field may further include an RA-RU information (random access-resource unit information) subfield.
  • the RA-RU information subfield includes a random access resource unit number (number Of RA-RU) subfield.
  • the number Of RA-RU subfield is used to indicate the number of consecutive RA-RUs allocated.
  • the value of the number of random access resource units subfield is equal to the number of allocated consecutive RA-RUs minus one.
  • non-associated EHT STA in the whole of this application may also be replaced by a non-associated EHT+ STA.
  • the STA of EHT+ refers to the STA that supports the standard after 802.11be.
  • Field names in the full text of this application can also be replaced with other field names.
  • the access point sends a trigger frame to the station.
  • the station reads the channel division information from the trigger frame.
  • the station after receiving the trigger frame sent by the access point, the station determines the channel division information based on the indication information in the trigger frame.
  • the station in step 603 refers to an unassociated EHT STA.
  • the station may also read the position of the RA-RU based on the read channel division information and the RU allocation subfield, and perform random access transmission based on the position of the RA-RU.
  • the station can determine the channel division based on the channel division information, and can determine the 80MHz position of the RA-RU allocated by the RU allocation subfield based on the channel division information, and then can determine the RA-RU based on the 80MHz position of the RA-RU. s position. Based on this possible implementation, the station can accurately determine the location of the RA-RU, and perform random access transmission based on the location of the RA-RU.
  • the channel division information includes one or more of the following information: the channel division mode of 320 MHz and the location of the main 80 MHz. That is to say, the indication information may indicate the channel division mode of 320MHz, or the position of the main 80MHz, or the channel division mode of 320MHz and the position of the main 80MHz.
  • the 320MHz channel division method includes 320-1 with PPDU channel center frequencies of 31/95/159 and 320-2 with PPDU center frequencies of 63/127/191.
  • the channel division method of 320MHz can be indicated by one bit. For example, when the bit is 1, 320-1 is indicated; when the bit is 0, 320-2 is indicated. Alternatively, when the bit is 0, 320-1 is indicated; when the bit is 1, 320-2 is indicated.
  • the location of the primary 80MHz may be indicated by 2 or more bits.
  • the position of the main 80 MHz is indicated by 2 bits as an example.
  • the bit When the bit is 00, it indicates that the main 80MHz is the first of the four 80MHz within 320MHz with frequencies from low to high; when the bit is 01, it indicates that the main 80MHz is the second of the four 80MHz within 320MHz with frequencies from low to high.
  • the bit When the bit is 10, it indicates that the main 80MHz is the third one of the 4 80MHz with frequencies from low to high within 320MHz; when the bit is 11, it indicates that the main 80MHz is the third of the 4 80MHz with frequencies from low to high within 320MHz. the fourth.
  • the relative indication method can be used to indicate where the main 80MHz is located. As shown in Figure 7, there are seven relative positional relationships between the main 80MHz and the 80MHz where the trigger frame is located.
  • the bit When the bit is 110, it indicates that the main 80MHz is 80MHz that is 240MHz higher than the 80MHz frequency that carries the trigger frame; when the bit is 101, it indicates that the main 80MHz is 80MHz that is 160MHz higher than the 80MHz frequency that carries the trigger frame; when the bit is 100
  • the bit When the bit is 000, it indicates that the main 80MHz is 80MHz higher than the 80MHz that carries the trigger frame; when the bit is 000, it indicates that the main 80MHz is the 80MHz that carries the trigger frame; when the bit is 001, it indicates that the main 80MHz is the 80MHz that carries the trigger frame
  • the bit When the bit is 010, it indicates that the main 80MHz is 80MHz that is 160MHz lower than the 80MHz frequency that carries the trigger frame; when the bit is 011, it indicates that the main 80MHz is the 80MHz frequency that carries the trigger frame. 80MHz as low as 240MHz.
  • the station can determine which 320MHz the RA-RU is in based on the 320MHz channel division, so that the station can determine the 80MHz location where the RA-RU is located in the 320MHz, and then can determine the RA based on the 80MHz location where the RA-RU is located. - the location of the RU.
  • the station may determine the location of the 80MHz where the RA-RU is located in the 320MHz where the RA-RU is located based on the location of the main 80MHz. For example, it is assumed that the indication information indicates that the channel division mode of 320 MHz is 320-1 and the main 80 MHz is the first 80 MHz among the four 80 MHz with frequencies from low to high within 320 MHz.
  • the 80MHz where the bearer trigger frame is located is the third 80MHz in FIG. 1 . Since the channel division mode of 320MHz is 320-1, the station determines that the RA-RU is in the first 320MHz corresponding to 320-1. Then the main 80MHz is the first 80MHz in Figure 1.
  • the site determines that the RA-RU is in the main 160MHz.
  • the first bit of the RU allocation subfield indicates sub-80MHz. That is, the RA-RU is located in the secondary 80MHz of the primary 160MHz. Since the main 80MHz is the first 80MHz in FIG. 1 , the main 160MHz is the first 160MHz in FIG. 1 . Therefore, the secondary 80MHz in the primary 160MHz is the second 80MHz in FIG. 3 . Therefore, the site determines that the RA-RU is located in the second 80MHz in Figure 3. The site may determine the location of the allocated RA-RU in the second 80MHz in FIG. 3 .
  • the site may also not determine the location of the 80MHz where the RA-RU is located in the 320MHz where the RA-RU is located, not based on the location of the primary 80MHz. For details, reference may be made to the following description, which is not repeated here.
  • the first user information field may be indicated to be used for allocating RA-RUs to non-associated EHTSTAs in the following manners 1 or 2, where:
  • the first user information field includes a first association identification AID12 subfield, the value of the first AID12 subfield is a first value, and the first value is a value in 2008-2044, and the first AID12 subfield is used It is used to indicate that the first user information field is used for allocating an RA-RU to an unassociated EHTSTA.
  • 2008-2044 is the reserved value of the AID12 subfield in 802.11ax.
  • Table 1 below shows the values and corresponding descriptions of the AID12 subfields in 802.11ax. As shown in Table 1 below, when the value of the AID12 subfield is 0, the AID12 subfield is used to indicate that the user information field where it is located is used to allocate one RA-RU or multiple consecutive RA-RUs to the associated HE STA. When the value of the AID12 subfield is 1-2007, the AID12 subfield is used to indicate the user information field where it is located, and is used to indicate the information of the associated STA whose AID is the same as the AID12 subfield. 2008-2044 are reserved values.
  • the AID12 subfield When the value of the AID12 subfield is 2045, the AID12 subfield is used to indicate that the user information field where it is located is used to allocate one RA-RU or multiple consecutive RA-RUs to the non-associated HE STA. When the value of the AID12 subfield is 2046, the AID12 subfield is used to indicate an unallocated RU. Since 2008-2004 is a reserved value, in 802.11be, the value of the AID12 subfield can be set to a value in 2008-2004 to indicate that the user information field is used for allocating RA-RUs for non-associated EHTSTAs.
  • the value of the AID12 subfield reserved in 802.11ax indicates that the user information field is used for allocating RA-RUs to non-associated EHTSTAs, so that RA-RUs can be allocated to non-associated EHTSTAs more flexibly.
  • the bits indicating the information are located in the first user information field. Specifically, part or all of the bits of the indication information are located in the first user information field.
  • the bits of the indication information may be carried by a subfield in the first user information field, or the bits of the indication information may be jointly carried by a plurality of subfields in the first user information field. bits.
  • bits of the indication information are located in the first user information field.
  • the indication information has 3 bits. These 3 bits of indication information may be carried by subfield 1 in the first user information field.
  • the first bit of the indication information is carried by subfield 1 in the first user information field.
  • the second bit of the indication information is carried by subfield 2 in the first user information field.
  • the third bit of the indication information is carried by subfield 3 in the first user information field.
  • bits of the indication information are located in the first user information field. Assume that the indication information has 3 bits. 2 bits of indication information may be carried by subfield 1 in the first user information field. Alternatively, the first bit of the indication information is carried by subfield 1 in the first user information field. The second bit of the indication information is carried by subfield 2 in the first user information field. The remaining one bit of the indication information is carried by fields other than the first user information field in the trigger frame.
  • the bits of the indication information are located in the first user information field
  • the trigger frame further includes a second user information field
  • the second user information field includes a second modulation and coding strategy MCS subfield
  • the second MCS subfield includes 4 bits.
  • the second user information field is used to indicate the information of the non-RA-RU STA;
  • the first user information field includes a first MCS subfield, and the length of the first MCS subfield is less than 4 bits.
  • the second user information field is used to indicate the information of the non-RA-RU STA .
  • the MCS subfield in the first user information field does not need to use 4 bits to indicate the modulation mode.
  • the MCS subfield in the first user information field only needs to indicate several lower MCS modulation modes.
  • the number of bits of the MCS subfield in the first user information field can be reduced from 4 bits to 2-3 bits.
  • the vacant 1 or more bits are used to indicate channel division information. In this way, the bits of the indication information can be carried through the first user information field without changing the total number of bits of the first user information field.
  • the trigger frame includes a first user information field and a second user information field.
  • the value of the AID12 subfield of the second user information field is 1, indicating that the second user information field is used to indicate the information of the non-RA-RU STA.
  • the MCS subfield in the second user information field includes 4 bits.
  • the value of the AID12 subfield of the first user information field is 2044, indicating that the first user information field is used to allocate an RA-RU to an unassociated EHT STA.
  • the MCS subfield in the first user information field includes 3 bits.
  • the channel division indication subfield is a newly added subfield in the first user information field.
  • the channel division indication subfield includes 1 bit.
  • the channel division indication field includes all or part of bits of indication information.
  • other bits of indication information may be located in other positions of the first user information field, or in the common information field of the trigger frame or the third user information field described below.
  • the information division indication subfield may be at any position after the AID12 subfield in the first user information field, and the information division indication subfield may also be called other names, which are not limited in this embodiment of the present application.
  • the sequence of the first user information field and the second user information field is not limited, and the first user information field may be located before or after the second user information field, and the same applies hereinafter.
  • the bits of the indication information are located in the first user information field
  • the trigger frame further includes a second user information field
  • the second user information field includes a high-efficiency HE/EHT format subfield
  • the second user information field is used to indicate a non-RA - Information of the RU STA
  • the bit position of the indication information in the first user information field is the same as the bit position of the HE/EHT format subfield in the second user information field.
  • the second user information field is used to indicate the information of the non-RA-RU STA .
  • the HE/EHT format subfield is used to indicate whether the second user information field is an HE STA user information field or an EHT STA user information field.
  • the HE/EHT format subfield includes 1 bit. Since the first AID12 subfield in the first user information field has already indicated that the first user information field is a user information field for the EHT STA.
  • the HE/EHT format subfield may not be set in the first user information field, and the original bit position of the HE/EHT format subfield is used to carry the indication information. In this way, the bits of the indication information can be carried through the first user information field without changing the total number of bits of the first user information field.
  • the trigger frame includes a first user information field and a second user information field.
  • the value of the AID12 subfield of the second user information field is 1, indicating that the second user information field is used to indicate the information of the non-RA-RU STA.
  • the bit position of the HE/EHT format subfield in the second user information field is B38 in the second user information field, that is, the 39th bit in the second user information field.
  • the value of the AID12 subfield of the first user information field is 2044, indicating that the first user information field is used to allocate an RA-RU to an unassociated EHT STA.
  • B38 in the first user information field is a channel division indication subfield.
  • the channel division indication subfield is a newly added subfield in the first user information field.
  • the channel division indication subfield includes 1 bit.
  • the channel division indication field includes all or part of bits of indication information. When the channel division indication field includes some bits of indication information, other bits of indication information may be located in other positions of the first user information field, or in the common information field of the trigger frame or the third user information field described below.
  • the information division indication subfield may also be called other names, which are not limited in this embodiment of the present application.
  • the first user information field includes a trigger frame related user information (trigger dependent user info) subfield, and the bits of the indication information are located in the trigger frame related user information field. Specifically, part or all of the bits of the indication information are located in the relevant user information field of the trigger frame.
  • the bit of the indication information is located at the position of the reserved bit in the relevant user information field of the trigger frame. For example, as shown in Figure 10, in the 802.11ax standard, the reserved bit in the trigger frame related user information field is the sixth bit of the trigger frame related user information subfield, that is, B5 of the trigger frame related user information subfield.
  • the bit of the indication information may be located in the 6th bit of the related user information field of the trigger frame.
  • the trigger frame further includes a third user information field, where the third user information field includes a second AID12 field and a first field, the value of the second AID12 is a second value, and the second AID12 field uses Since the bit indicating the indication information is located in the first field, the second value is one of 2008-2044 or the second value is one of 1-2007 that is not assigned to the AID12 of the associated STA, and the second value is the same as The first value is not the same. Wherein, all or part of the bits of the indication information are located in the first field.
  • the first field may be called the channel partition indication subfield or other names.
  • the trigger frame includes a first user information field and a third user information field.
  • the value of the AID12 subfield of the third user information field is 2043, indicating that the channel division indication subfield after the AID12 subfield carries bits of indication information.
  • the value of the AID12 subfield of the first user information field is 2044, indicating that the first user information field is used to allocate an RA-RU to an unassociated EHT STA.
  • a special user information field is used alone to carry the bits of the indication information, so that the design of the first user information field for the unassociated EHT STA does not need to be complicated, and the pairing of the receiving end is simplified.
  • the sequence of the first user information field and the third user information field is not limited, and the first user information field may be located before or after the third user information field, and the same applies hereinafter.
  • the trigger frame further includes a common information field, and the bits indicating the information are located in the common information field. Specifically, all or part of the bits of the indication information are located in the common information field.
  • the bit of the indication information is located at the reserved bit position in the common information field.
  • the positions of the reserved bits in the common information field are the 55th bit to the 64th bit (ie, B54 ⁇ B63) in the common information field.
  • the bits indicating the information may be located between the 55th bit to the 64th bit in the common information field.
  • the bits of the indication information are located in the Uplink Bandwidth (UL BW) subfield in the common information field.
  • UL BW Uplink Bandwidth
  • two entries other than 20/40/80/160 MHz bandwidth for indicating 320-1 and 320-2 may be added to the UL BW subfield.
  • the 320MHz channel division mode can be indicated by the UL BW subfield.
  • the channel division information includes a 320MHz channel division method
  • the first user information field further includes a resource unit allocation (RU allocation) subfield, a low/high 160MHz segment subfield, and a low/high 160MHz segment subfield
  • RU allocation resource unit allocation
  • the first bit of the resource element allocation subfield indicates the low/high 80MHz or high 80MHz of the 160MHz indicated by the low/high 160MHz segment subfield.
  • the low/high 160MHz segment subfield is used to indicate in absolute frequency whether the RA-RU is located in the low frequency 160MHz or the high frequency 160MHz in the 320MHz bandwidth.
  • the first bit in the resource element allocation subfield also indicates in absolute frequency whether the RA-RU is a low frequency 80MHz or a high frequency 80MHz located in 160MHz.
  • the station only needs to determine the 320MHz where the RA-RU is located based on the channel division method of 320MHz, and can determine the 80MHz where the RA-RU is located without knowing the location of the main 80MHz, and then the location of the RA-RU can be determined. That is to say, in this way, the indication information does not need to indicate the location of the main 80 MHz, which is beneficial to reduce the overhead of indication signaling.
  • the indication information indicates that the channel division mode of 320 MHz is 320-1.
  • the 80MHz where the bearer trigger frame is located is the third 80MHz in FIG. 1 . Since the channel division mode of 320MHz is 320-1, the station determines that the RA-RU is in the first 320MHz corresponding to 320-1.
  • the low/high 160MHz segment subfield indicates a high frequency of 160MHz, and the first bit of the RU allocation subfield indicates a low frequency of 80MHz. Therefore, the RA-RU is located in the low frequency 80MHz in the high frequency 160MHz in the first 320MHz corresponding to 320-1 in FIG. 1 .
  • the frequencies of the channels in Figure 1 increase sequentially from left to right. Therefore, the RA-RU is located at the third 80MHz in Figure 1.
  • the trigger frame may include only the first user information field, or the first user information field and the second user information field, or the first user information field and the third user information field, or , including a first user information field, a second user information field and a third user information field.
  • the first user information field includes the first association identification AID12 subfield, the value of the first AID12 subfield is 2045, and the first AID12 subfield is used to indicate that the first user information field is used for the non-associated EHTSTA Allocate RA-RU.
  • the value of the AID12 subfield is 2045 to indicate that the user information field where it is located is used to allocate RA-RUs to non-associated HE STAs. That is to say, in mode 2., by setting the value of the AID12 subfield in the first user information field to 2045, the first user information field allocates RA-RUs for the non-associated HE STA and the non-associated EHT STA at the same time. In this case, random access can only be performed within the primary 160MHz channel also supported by the HE STA. The advantage of this is that there is no need to additionally design the user information field of the UORA for the EHT STA.
  • the trigger frame further includes a common information field
  • the first user information field includes a user information subfield related to the trigger frame
  • the indication information includes multiple bits
  • the bits of the indication information are located at one or more of the following positions: The position of the reserved bit in the common information field, the first user information field, or the position of the reserved bit in the related user information subfield of the trigger frame.
  • the bits of the first part of the indication information are located in the common information field, and the bits of the second part of the indication information are located in the reserved bits of the first user information field.
  • the bits of the first part of the indication information are located in the common information field, the bits of the second part of the indication information are located in the reserved bits of the first user information field, and the bits of the third part of the indication information are located in the relevant user information subfield of the trigger frame. reserved bit position.
  • the position of the reserved bit in the first user information field is the 40th bit (B39) of the first user information field.
  • the position of the reserved bits of the trigger frame related user information subfield is the sixth bit (B5) of the trigger frame related user information subfield.
  • the bits of the first part of the indication information may be located in the reserved bits of the common information field.
  • the positions of the reserved bits in the common information field are the 55th bit to the 64th bit (ie, B54 to B63 ) in the common information field.
  • the first part of the bits of the indication information is located in the UL BW subfield in the common information field.
  • two entries for indicating 320-1 and 320-2 may be added to the UL BW sub-band in addition to the 20/40/80/160 MHz bandwidth. In this way, the 320MHz channel division mode can be indicated by the UL BW subfield.
  • the indication information has 3 bits.
  • the first part of the bits of the indication information includes 1 bit, which is used to indicate the channel division mode of 320 MHz.
  • the second part of the bits of the indication information includes 1 bit, the third part of the bits includes 1 bit, and the second part of the bits and the third part of the bits are jointly used to indicate the position of the main 80 MHz.
  • How to indicate the position of the main 80 MHz by using two bits can refer to the foregoing description, which will not be repeated here.
  • the first part of the bits of the indication information is located at the 64th bit (B63) of the common information field.
  • the second part of the indication information is located in the 40th bit (B39) of the first user information field.
  • the bit of the third part of the indication information is located in the sixth bit (B5) of the related user information subfield of the trigger frame.
  • the trigger frame further includes a third user information field, where the third user information field includes a second AID12 field and a first field, the value of the second AID12 is a second value, and the second AID12 field uses Since the bit indicating the indication information is located in the first field, the second value is one of 2008-2044, or the second value is one of 1-2007 that is not assigned to the AID12 of the associated STA. Wherein, all or part of the bits of the indication information are located in the first field.
  • the first field may be called the channel partition indication subfield or other names.
  • the trigger frame includes a first user information field and a third user information field.
  • the value of the AID12 subfield of the third user information field is 2043, indicating that the channel division indication subfield after the AID12 subfield carries bits of indication information.
  • the value of the AID12 subfield of the first user information field is 2045, indicating that the first user information field is used to allocate an RA-RU to an unassociated EHT STA. That is to say, in this possible implementation, a special user information field is used alone to carry the bits of the indication information, so that the design of the first user information field for the unassociated EHT STA does not need to be complicated, and the pairing of the receiving end is simplified. Interpretation of the first user information field.
  • the trigger frame further includes a common information field, and the bits indicating the information are located in the common information field. Specifically, all or part of the bits of the indication information are located in the common information field.
  • the bit of the indication information is located at the reserved bit position in the common information field.
  • the positions of the reserved bits in the common information field are the 55th bit to the 64th bit (ie, B54 to B63 ) in the common information field.
  • the bits indicating the information may be located between the 55th bit to the 64th bit in the common information field.
  • the bits of the indication information are located in the UL BW subfield in the common information field.
  • two entries for indicating 320-1 and 320-2 may be added to the UL BW sub-band in addition to the 20/40/80/160 MHz bandwidth. In this way, the 320MHz channel division mode can be indicated by the UL BW subfield.
  • each STA in order to enable non-associated EHT STAs to obtain channel division information, each STA can also be forced to learn through a beacon frame or a probe response frame before performing UORA. Indication of channel division.
  • FIG. 15 shows a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the communication apparatus shown in FIG. 15 may be used to perform part or all of the functions of the access point in the method embodiment described in FIG. 6 above.
  • the device may be an access point, or a device in the access point, or a device that can be matched and used with the access point. Wherein, the communication device may also be a chip system.
  • the communication apparatus shown in FIG. 15 may include a communication unit 1501 and a processing unit 1502 . Among them, the processing unit 1502 is used for data processing.
  • the communication unit 1501 integrates a receiving unit and a transmitting unit.
  • the communication unit 1501 may also be referred to as a transceiving unit. Alternatively, the communication unit 1501 can also be divided into a receiving unit and a sending unit.
  • the processing unit 1502 and the communication unit 1501 in the following are the same, and will not be repeated below. in:
  • the processing unit 1502 is configured to generate a trigger frame, where the trigger frame includes a first user information field, and the first user information field is used to allocate a random access resource unit RA-RU for an unassociated ultra-high throughput station EHTSTA, and the trigger frame carries a The indication information for indicating the channel division information; the communication unit 1501 is used for sending a trigger frame to the station.
  • the first user information field includes a first association identifier AID12 subfield, the value of the first AID12 subfield is a first value, and the first value is one of 2008-2044 or the first value A value in 1-2007 that is not allocated to the AID12 of the associated STA, the first AID12 subfield is used to indicate that the first user information field is used to allocate an RA-RU for the non-associated EHTSTA.
  • the bits indicating the information are located in the first user information field.
  • the trigger frame further includes a second user information field, the second user information field includes a second modulation and coding strategy MCS subfield, the second MCS subfield includes 4 bits, and the second user information field is used for Information indicating a non-RA-RU STA; the first user information field includes a first MCS subfield, and the length of the first MCS subfield is less than 4 bits.
  • the trigger frame further includes a second user information field, the second user information field includes a high-efficiency HE/EHT format subfield, and the second user information field is used to indicate information of a non-RA-RU STA; indication information
  • the bit positions in the first user information field are the same as the bit positions of the HE/EHT format subfields in the second user information field.
  • the first user information field includes a trigger frame related user information subfield, and the bits of the indication information are located in the trigger frame related user information field.
  • the trigger frame further includes a third user information field, the third user information field includes a second AID12 field and a first field, the value of the second AID12 is a second value, and the second AID12 field is used to indicate The bits indicating the information are located in the first field, the second value is one of 2008-2044 or the second value is one of 1-2007 that is not assigned to the AID12 of the associated STA, and the second value is the same as the first value Are not the same.
  • the channel division information includes a channel division mode of 320 MHz
  • the first user information field further includes a resource unit allocation subfield and a low/high 160MHz subfield, and the low/high 160MHz subfield is used for To indicate that the RA-RU is located at 160MHz lower or 160MHz higher, the first bit of the resource element allocation subfield indicates the lower 80MHz or the upper 80MHz of the 160MHz indicated by the lower/higher 160MHz segment subfield.
  • the first user information field includes a first association identifier AID12 subfield, the value of the first AID12 subfield is 2045, and the first AID12 subfield is used to indicate that the first user information field is used for non-association
  • the EHTSTA allocates RA-RU.
  • the trigger frame further includes a common information field
  • the first user information field includes a subfield of user information related to the trigger frame
  • the indication information includes multiple bits
  • the bits of the indication information are located at one or more of the following positions: The position of the reserved bit in the common information field, the first user information field, or the position of the reserved bit in the related user information subfield of the trigger frame.
  • the trigger frame further includes a third user information field, the third user information field includes a second AID12 field and a first field, the value of the second AID12 is a second value, and the second AID12 field is used to indicate The bits of the indication information are located in the first field, the second value is one of 2008-2044, or the second value is one of 1-2007 that is not assigned to the associated STA's AID12.
  • the trigger frame further includes a common information field, and the bits indicating the information are located in the common information field.
  • the channel division information includes one or more of the following information: the channel division mode of 320 MHz and the location of the main 80 MHz.
  • FIG. 15 shows a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the communication apparatus shown in FIG. 15 may be used to perform part or all of the functions of the station in the method embodiment described in FIG. 6 above.
  • the device may be a site, a device in a site, or a device that can be used in conjunction with the site. Wherein, the communication device may also be a chip system.
  • the communication apparatus shown in FIG. 15 may include a communication unit 1501 and a processing unit 1502 . in:
  • the communication unit 1501 is configured to receive a trigger frame sent by an access point, where the trigger frame includes a first user information field, and the first user information field is used to allocate a random access resource unit RA-RU for an unassociated ultra-high throughput station EHTSTA , the trigger frame carries indication information for indicating the channel division information; the processing unit 1502 is configured to read the channel division information from the trigger frame.
  • the first user information field further includes a resource unit RU allocation subfield, and the RU allocation subfield is used for allocating RA-RUs;
  • the processing unit 1502 is further configured to read based on the channel division information and the RU allocation subfield The position of the RA-RU is taken;
  • the communication unit 1501 is further configured to perform random access transmission based on the position of the RA-RU.
  • FIG. 16 shows a communication apparatus 160 provided by an embodiment of the present application, which is used to implement the function of the access point in the foregoing FIG. 6 .
  • the apparatus may be an access point or an apparatus for an access point.
  • the means for the access point may be a system-on-a-chip or chip within the access point. Wherein, the chip system may be composed of chips, and may also include chips and other discrete devices.
  • the communication device 160 is configured to implement the functions of the above-mentioned station in FIG. 6 .
  • the device may be a site or a device for a site.
  • the means for the site may be a system-on-a-chip or chip within the site.
  • the communication device 160 includes at least one processor 1620, configured to implement the data processing function of the access point or the station in the method provided in the embodiment of the present application.
  • the apparatus 160 may further include a communication interface 1610, configured to implement the sending and receiving operations of the access point or the station in the method provided in the embodiment of the present application.
  • the communication interface may be a transceiver, a circuit, a bus, a module or other types of communication interfaces, which are used to communicate with other devices through a transmission medium.
  • the communication interface 1610 is used by the apparatus in the apparatus 160 to communicate with other devices.
  • the processor 1620 uses the communication interface 1610 to send and receive data, and is used to implement the method described in FIG. 6 in the foregoing method embodiment.
  • Apparatus 160 may also include at least one memory 1630 for storing program instructions and/or data.
  • Memory 1630 and processor 1620 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 1620 may cooperate with memory 1630.
  • Processor 1620 may execute program instructions stored in memory 1630 . At least one of the at least one memory may be included in the processor.
  • connection medium between the communication interface 1610, the processor 1620, and the memory 1630 is not limited in the embodiments of the present application.
  • the memory 1630, the processor 1620, and the communication interface 1610 are connected through a bus 1640 in FIG. 16.
  • the bus is represented by a thick line in FIG. 16, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is shown in FIG. 16, but it does not mean that there is only one bus or one type of bus.
  • the communication interface 1610 may output or receive baseband signals.
  • the communication interface 1610 may output or receive radio frequency signals.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which can implement or The methods, operations, and logic block diagrams disclosed in the embodiments of the present application are executed.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The operations of the methods disclosed in combination with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • Embodiments of the present application further provide a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is executed on a processor, the method flow of the foregoing method embodiment is implemented.
  • the embodiments of the present application further provide a computer program product, when the computer program product runs on a processor, the method flow of the above method embodiments is realized.

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Abstract

本申请公开了一种信道划分信息指示方法及通信装置，该方法包括：接入点生成触发帧，该触发帧包括第一用户信息字段，该第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，该触发帧携带用于指示信道划分信息的指示信息；接入点向站点发送触发帧。可见，基于本申请所描述的方法，有利于非关联的EHT STA识别信道划分情况。

Description

一种信道划分信息指示方法及通信装置
本申请要求于2020年12月11日提交中国专利局、申请号为2020114478315、申请名称为“一种信道划分信息指示方法及通信装置”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。
技术领域
本申请涉及通信技术领域，尤其涉及一种信道划分信息指示方法及通信装置。
背景技术
无线局域网(wireless local area network，WLAN)发展至今已历经多代，包括802.11a/b/g、802.11n、802.11ac、802.11ax以及现在正在讨论中的802.11be等。其中，802.11n标准称为高吞吐率(high throughput，HT)，802.11ac标准称为非常高吞吐率(very high throughput，VHT)，802.11ax标准称为高效(high efficient，HE)，802.11be标准称为超高吞吐率(extremely high throughput，EHT)。
正在讨论中的11be新增加了6GHz频段，并将最大连续带宽从11ax中的160MHz提升到320MHz，进一步增加了系统的吞吐量(throughput)。6GHz频段中320MHz带宽模式的信道划分如图1所示。11be定义了320MHz带宽的信道由两个连续的160MHz带宽构成，160MHz带宽由两个连续的80MHz构成。320MHz的信道划分方式具有两种，分别为PPDU信道中心频率为31/95/159的320-1和PPDU中心频率为63/127/191的320-2。如图1所示，320MHz的信道划分方式为320-1时，第一个320MHz由第一个160MHz和第二个160MHz构成，第二个320MHz由第三个160MHz和第四个160MHz构成，第三个320MHz由第五个160MHz和第六个160MHz构成。320MHz的信道划分方式为320-2时，第一个320MHz由第二个160MHz和第三个160MHz构成，第二个320MHz由第四个160MHz和第五个160MHz构成，第三个320MHz由第六个160MHz和第七个160MHz构成。
在某个信道内，会进一步定义主20MHz信道(或简称主信道，primary 20MHz，P20)，次20MHz信道(secondary 20MHz，S20)，主/次40MHz信道，主/次80MHz信道，主/次160MHz信道。主20MHz信道可以为整个带宽中的任意一个，不存在固定的关系。以带宽为320Mhz为例，如图2所示，包含P20信道的40MHz信道被称作P40信道。包含P20信道的80MHz信道被称作P80信道。包含P20信道的160MHz信道被称作P160信道。次20MHz是主40MHz信道内除主20MHz信道的另外一个20MHz信道。次40MHz是主80MHz信道内除主40MHz信道的另外一个40MHz信道。次80MHz是主160MHz信道内除主80MHz信道的另外一个80MHz信道。次160MHz是320MHz信道内除主160MHz信道的另外一个160MHz信道。
WLAN设备，接入点(access point，AP)和站点(station，STA)工作在非授权频谱，通过竞争信道获得传输物理层协议数据单元(PHY protocol data unit，PPDU)的机会。11ax中提出了一种STA通过随机接入资源单元(random access-resource unit，RA-RU)进行随机接入传输来获得传输PPDU机会的上行正交频分多址随机接入(uplink OFDMA-based random access，UORA)机制。AP会发送一个触发帧给一个或多个STA，以通过触发帧为一个或多个STA分配RA-RU。如图3所示，触发帧的用户信息字段包括AID12子字段和RU分配(RU  allocation)子字段。触发帧的用户信息字段的B26-B31为空间流分配/RA-RU信息(spatial stream allocation/random access-resource unit information)子字段。当用户信息字段中的AID12子字段值为0或者2045时，表示该用户信息字段的B26-B31为RA-RU信息(random access-resource unit information)子字段。否则，该用户信息字段的B26-B31代表空间流分配(spatial stream allocation)子字段。
在关联STA或非关联STA读取到AID12子字段为0或2045时，会根据RU分配子字段和RA-RU信息中所指示的RU进行随机接入传输。RU分配子字段用于指示为STA分配的第一个RA-RU的大小和位置，RA-RU信息子字段结构如图4所示。随机接入资源单元个数(number Of RA-RU)子字段用来指示分配的连续RA-RU个数。随机接入资源单元个数子字段的值等于连续RA-RU个数减一。RU分配子字段的指示方法是，带宽为160MHz时，8比特中的第一个比特用来指示所指示的RA-RU是位于主80MHz还是次80MHz，然后再利用其他7比特指示是该80MHz内的哪一个RA-RU。带宽为20MHz、40MHz或80MHz时，8比特中的第一个比特用来指示所指示的RA-RU位于主80MHz，然后再利用其他7比特指示是该80MHz内的哪一个RA-RU。
通常在信标帧(beacon frame)或者探测应答帧(probe response frame)中会携带有信道划分信息。STA基于该信道划分信息能够确定RU分配子字段中的第一个比特指示的80MHz的位置。但非关联EHT STA无法接收到信标帧或者探测应答帧。因此，非关联EHT STA无法识别信道划分情况，无法基于信道划分情况确定RU分配子字段中的第一个比特指示的80MHz在哪个320MHz带宽中，进而无法确定RU分配子字段中的第一个比特指示的80MHz的位置，进而无法确定AP分配的RA-RU。
发明内容
本申请提供了一种信道划分信息指示方法及通信装置，有利于非关联EHT STA识别信道划分情况。
第一方面，本申请提供了一种信道划分信息指示方法，该方法包括：接入点生成触发帧，该触发帧包括第一用户信息字段，该第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，该触发帧携带用于指示信道划分信息的指示信息；接入点向站点发送触发帧。可见，基于第一方面所描述的方法，有利于非关联的EHT STA识别信道划分情况。
第二方面，本申请提供了一种信道划分信息指示方法，该方法包括：站点接收接入点发送的触发帧，该触发帧包括第一用户信息字段，该第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，该触发帧携带用于指示信道划分信息的指示信息；站点从触发帧中读取信道划分信息。可见，基于第二方面所描述的方法，有利于非关联的EHT STA识别信道划分情况。
在第二方面的一种可能的实现中，第一用户信息字段还包括资源单元RU分配子字段，所述RU分配子字段用于分配所述RA-RU；站点还可基于信道划分信息和RU分配子字段读取RA-RU的位置，以及基于RA-RU的位置进行随机接入传输。基于该可能的实现方式，站点能够准确地确定RA-RU的位置，基于RA-RU的位置进行随机接入传输。
在第一方面或第二方面的一种可能的实现中，第一用户信息字段包括第一关联标识AID12子字段，第一AID12子字段的值为第一值，第一值为2008-2044中的一个值或第一值 为1-2007中的一个未分配给关联STA的AID12的值，第一AID12子字段用于指示第一用户信息字段用于为非关联的EHTSTA分配RA-RU。基于该可能的实现方式，能够通过802.11ax中预留的AID12子字段的值来指示用户信息字段用于为非关联的EHTSTA分配RA-RU，能够更加灵活地为非关联的EHTSTA分配RA-RU。
在第一方面或第二方面的一种可能的实现中，指示信息的比特位于第一用户信息字段中。如果使指示信息的比特位于公共信息字段，即使不存在需要随机接入的非关联的EHT STA，公共信息字段中也会一直携带指示信息。通过使指示信息的比特位于第一用户信息字段中，能够在存在需要随机接入的非关联的EHT STA时，才在触发帧中携带指示信息，这样使指示信息的携带更加灵活，有利于公共信息字段携带更多的其他信息。
在第一方面或第二方面的一种可能的实现中，触发帧还包括第二用户信息字段，第二用户信息字段包括第二调制编码策略MCS子字段，第二MCS子字段包括4个比特，第二用户信息字段用于指示非RA-RU STA的信息；第一用户信息字段包括第一MCS子字段，第一MCS子字段的长度小于4个比特。基于该可能的实现方式，能在不改变第一用户信息字段的比特总数量的情况下，通过第一用户信息字段携带指示信息的比特。
在第一方面或第二方面的一种可能的实现中，触发帧还包括第二用户信息字段，第二用户信息字段包括高效HE/EHT格式子字段，第二用户信息字段用于指示非RA-RU STA的信息；指示信息在第一用户信息字段中的比特位置与HE/EHT格式子字段在第二用户信息字段中的比特位置相同。基于该可能的实现方式，能在不改变第一用户信息字段的比特总数量的情况下，通过第一用户信息字段携带指示信息的比特。
在第一方面或第二方面的一种可能的实现中，第一用户信息字段包括触发帧相关用户信息子字段，指示信息的比特位于触发帧相关用户信息字段中。基于该可能的实现方式，能在不改变第一用户信息字段的比特总数量的情况下，通过第一用户信息字段携带指示信息的比特。
在第一方面或第二方面的一种可能的实现中，触发帧还包括第三用户信息字段，第三用户信息字段包括第二AID12字段和第一字段，第二AID12的值为第二值，第二AID12字段用于指示指示信息的比特位于第一字段中，第二值为2008-2044中的一个值或第二值为1-2007中的一个未分配给关联STA的AID12的值，且第二值与第一值不相同。在该可能的实现中，单独使用一个特殊的用户信息字段来携带指示信息的比特，这样不需要复杂化针对非关联的EHT STA的第一用户信息字段的设计，简化接收端对第一用户信息字段的解读。
在第一方面或第二方面的一种可能的实现中，信道划分信息包括320兆赫兹MHz的信道划分方式，第一用户信息字段还包括资源单元分配子字段和低/高160MHz分段子字段，低/高160MHz分段子字段用于指示RA-RU位于低160MHz或高160MHz，资源单元分配子字段的第一个比特指示低/高160MHz分段子字段指示的160MHz中的低80MHz或高80MHz。在这种方式中指示信息无需指示主80MHz的位置，有利于减小指示信令的开销。
在第一方面或第二方面的一种可能的实现中，第一用户信息字段包括第一关联标识AID12子字段，第一AID12子字段的值为2045，第一AID12子字段用于指示第一用户信息字段用于为非关联的EHTSTA分配RA-RU。基于该可能的实现方式，无需额外设计针对EHT STA的UORA的用户信息字段。
在第一方面或第二方面的一种可能的实现中，触发帧还包括公共信息字段，第一用户信息字段包括触发帧相关用户信息子字段，指示信息包括多个比特，该指示信息的比特位于以下一个或多个位置：公共信息字段、第一用户信息字段中的预留比特的位置或触发帧相关用 户信息子字段中的预留比特的位置。
在第一方面或第二方面的一种可能的实现中，触发帧还包括第三用户信息字段，第三用户信息字段包括第二AID12字段和第一字段，第二AID12的值为第二值，第二AID12字段用于指示指示信息的比特位于第一字段中，第二值为2008-2044中的一个值，或第二值为1-2007中的一个未分配给关联STA的AID12的值。在该可能的实现中，单独使用一个特殊的用户信息字段来携带指示信息的比特，这样不需要复杂化针对非关联的EHT STA的第一用户信息字段的设计，简化接收端对第一用户信息字段的解读。
在第一方面或第二方面的一种可能的实现中，触发帧还包括公共信息字段，指示信息的比特位于公共信息字段中。通过在公共信息字段中携带指示信息的比特，这样就不需要复杂化针对非关联的EHT STA的第一用户信息字段的设计，简化接收端对第一用户信息字段的解读。
在第一方面或第二方面的一种可能的实现中，信道划分信息包括以下一个或多个信息：320兆赫兹MHz的信道划分方式和主80MHz的位置。
第三方面，本申请提供了一种通信装置，该装置可以是接入点，也可以是接入点中的装置，或者是能够和接入点匹配使用的装置。其中，该通信装置还可以为芯片系统。该通信装置可执行第一方面所述的方法。该通信装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元。该单元可以是软件和/或硬件。该通信装置执行的操作及有益效果可以参见上述第一方面所述的方法以及有益效果，重复之处不再赘述。
第四方面，本申请提供了一种通信装置，该装置可以是站点，也可以是站点中的装置，或者是能够和站点匹配使用的装置。其中，该通信装置还可以为芯片系统。该通信装置可执行第二方面所述的方法。该通信装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元。该单元可以是软件和/或硬件。该通信装置执行的操作及有益效果可以参见上述第二方面所述的方法以及有益效果，重复之处不再赘述。
第五方面，本申请提供了一种通信装置，所述通信装置包括处理器，当所述处理器调用存储器中的计算机程序时，如第一方面或第二方面所述的方法被执行。
第六方面，本申请提供了一种通信装置，所述通信装置包括处理器和存储器，所述存储器用于存储计算机执行指令；所述处理器用于执行所述存储器所存储的计算机执行指令，以使所述通信装置执行如第一方面或第二方面所述的方法。
第七方面，本申请提供了一种通信装置，所述通信装置包括处理器、存储器和收发器，所述收发器，用于接收信号或者发送信号；所述存储器，用于存储程序代码；所述处理器，用于从所述存储器调用所述程序代码执行如第一方面或第二方面所述的方法。
第八方面，本申请提供了一种通信装置，所述通信装置包括处理器和接口电路，所述接口电路，用于接收代码指令并传输至所述处理器；所述处理器运行所述代码指令以执行如第一方面或第二方面所述的方法。
第九方面，本申请实施例提供一种系统，该系统包括上述第三方面或第四方面提供的通信装置。
第十方面，本申请提供了一种计算机可读存储介质，所述计算机可读存储介质用于存储指令，当所述指令被执行时，使得如第一方面或第二方面所述的方法被实现。
第十一方面，本申请实施例提供一种计算机程序或计算机程序产品，包括代码或指令， 当代码或指令在计算机上运行时，使得计算机执行如第一方面或第二方面所述的方法被实现。
附图说明
图1是现有的一种信道划分的结构示意图；
图2是现有的另一种信道划分的示意图；
图3是现有的一种触发帧的用户信息字段的结构示意图；
图4是现有的一种触发帧的用户信息字段中的随机接入资源单元信息子字段的结构示意图；
图5是本申请实施例提供的一种系统架构的示意图；
图6是本申请实施例提供的一种信道划分消息指示方法的流程示意图；
图7是本申请实施例提供的一种主80MHz与触发帧所在的80MHz的相对位置关系的示意图；
图8是本申请实施例提供的一种触发帧的结构示意图；
图9是本申请实施例提供的另一种触发帧的结构示意图；
图10是本申请实施例提供的一种触发帧相关用户信息子字段的结构示意图；
图11是本申请实施例提供的另一种触发帧的结构示意图；
图12是本申请实施例提供的一种公共信息字段的结构示意图；
图13是本申请实施例提供的一种触发帧的结构示意图；
图14是本申请实施例提供的另一种触发帧的结构示意图；
图15是本申请实施例提供的一种通信装置的结构示意图；
图16是本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
下面结合附图对本申请具体实施例作进一步的详细描述。
本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上，“至少两个(项)”是指两个或三个及三个以上，“和/或”，用于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：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
本申请实施例提供了信道划分信息指示方法及通信装置。本申请实施例提供的该方法应用于无线通信系统中。该无线通信系统可以为无线局域网(wireless local area network，WLAN)或蜂窝网，该方法可以由无线通信系统中的通信设备或通信设备中的芯片或处理器实现。在无线局域网中，该通信设备支持采用802.11be或802.11be之后的制式。
为了更好地理解本申请实施例，下面首先对本申请实施例涉及的系统架构进行介绍：
请参见图5，图5是本申请实施例提供的一种系统架构的示意图。如图5所示，该系统架构包括接入点(access point，AP)和一个或多个站点。图5所示的站点可以为非关联的超高吞吐率站点(extremely high throughputstation，EHTSTA)。非关联的EHT STA是指未加入接入点所在小区的EHT STA。EHT STA是指支持802.11be制式的站点。图5以该系统架构包括一个接入点和三个站点为例进行说明。当然该系统架构中还可包括更多的接入点和站点。或者，该系统架构中也可以只包括两个站点。
其中，接入点可以为终端设备(如手机)进入有线(或无线)网络的接入点，主要部署于家庭、大楼内部以及园区内部，典型覆盖半径为几十米至上百米，当然，也可以部署于户外。接入点相当于一个连接有线网和无线网的桥梁，主要作用是将各个无线网络客户端连接到一起，然后将无线网络接入以太网。具体的，接入点可以是带有无线保真(wreless-fidelity，WiFi)芯片的终端设备(如手机)或者网络设备(如路由器)。接入点可以为支持802.11be制式或802.11be之后的制式的设备。
站点可以为无线通讯芯片、无线传感器或无线通信终端等。例如，站点可以为支持WiFi通讯功能的移动电话、支持WiFi通讯功能的平板电脑、支持WiFi通讯功能的机顶盒、支持WiFi通讯功能的智能电视、支持WiFi通讯功能的智能可穿戴设备、支持WiFi通讯功能的车载通信设备和支持WiFi通讯功能的计算机等等。
例如，接入点和站点可以是应用于车联网中设备，物联网中的物联网节点、传感器等，智慧家居中的智能摄像头，智能遥控器，智能水表电表等，以及智慧城市中的传感器等。
下面对本申请提供的信道划分信息指示方法及通信装置进一步进行介绍：
请参见图6，图6是本申请实施例提供的一种信道划分信息指示方法的流程示意图。如图6所示，该信道划分信息指示方法包括如下步骤601～步骤603，图6所示的方法执行主体可以为接入点和站点。或者，图6所示的方法执行主体可以为接入点中的芯片和站点中的芯片。图6以接入点和站点为执行主体为例进行说明。其中：
601、接入点生成触发帧，该触发帧包括第一用户信息字段，该第一用户信息字段用于为非关联的EHT STA分配RA-RU，该触发帧携带用于指示信道划分信息的指示信息。
其中，触发帧可包括一个或多个第一用户信息字段。每个第一用户信息字段用于为非关联的EHT STA分配一个RA-RU或多个连续的RA-RU。RA-RU用于非关联的EHT STA进行随机接入传输，以获得PPDU的传输机会。
第一用户信息字段可包括RU分配(RU allocation)子字段。第一用户信息字段通过RU分配子字段来为非关联的EHT STA分配第一个RA-RU。
在带宽为160MHz时，RU分配子字段的第一个比特指示RA-RU位于某个80MHz(如主80MHz或次80MHz，或绝对频率的低频率80MHz或高频率80MHz)，其他7比特用于指示分配的第一个RA-RU在第一个比特指示的80MHz内的位置，可选的，还可指示第一个RA-RU的大小。
在一种可能的实现中，在带宽为320MHz时，第一用户信息字段还包括主/从160MHz分段子字段。主/从160MHz分段子字段用于指示RA-RU位于主160MHz或从160MHz。如果 主/从160MHz分段子字段指示主160MHz，则RU分配子字段的第一个比特指示RA-RU位于该主160MHz中的主80MHz或从80MHz。如果主/从160MHz分段子字段指示次160MHz，则RU分配子字段的第一个比特指示RA-RU位于该次160MHz中的高频率80MHz或低频率80MHz。
在另一种可能的实现中，在带宽为320MHz时，第一用户信息字段还包括低/高160MHz分段子字段。低/高160MHz分段子字段用于指示RA-RU位于高频率160MHz或低频率160MHz。RU分配子字段的第一个比特指示RA-RU位于低/高160MHz分段子字段指示的160MHz中的高频率80MHz或低频率80MHz。
第一用户信息字段还可包括RA-RU信息(random access-resource unit information)子字段。如图4所示，RA-RU信息子字段包括随机接入资源单元个数(number Of RA-RU)子字段。随机接入资源单元个数(number Of RA-RU)子字段用来指示分配的连续RA-RU个数。随机接入资源单元个数子字段的值等于分配的连续RA-RU个数减一。STA确定了分配的连续RA-RU中的第一个RA-RU的位置之后，根据该第一个RA-RU的位置和分配的连续RA-RU的个数和就能确定分配的其他RA-RU的位置。
可选的，也可以将本申请全文中的非关联的EHT STA替换为非关联的EHT+的STA。EHT+的STA是指支持802.11be之后的制式的STA。本申请全文中的字段名称还可以替换为其他字段名称。
602、接入点向站点发送触发帧。
603、站点从触发帧中读取信道划分信息。
本申请实施例中，站点接收接入点发送的触发帧之后，基于触发帧中的指示信息确定信道划分信息。其中，步骤603中的站点是指非关联的EHT STA。
在一种可能的实现中，站点还可基于读取的信道划分信息和RU分配子字段读取RA-RU的位置，并基于RA-RU的位置进行随机接入传输。站点基于信道划分信息就能确定信道划分情况，基于信道划分情况就能确定RU分配子字段分配的RA-RU所在的80MHz的位置，进而可基于RA-RU所在的80MHz的位置来确定RA-RU的位置。基于该可能的实现方式，站点能够准确地确定RA-RU的位置，基于RA-RU的位置进行随机接入传输。
可见，基于图6所描述的方法，有利于非关联的EHT STA识别信道划分情况。
在一种可能的实现中，信道划分信息包括以下一个或多个信息：320MHz的信道划分方式和主80MHz的位置。也就是说，指示信息可以指示320MHz的信道划分方式，或指示主80MHz的位置，或指示320MHz的信道划分方式和主80MHz的位置。
320MHz的信道划分方式包括PPDU信道中心频率为31/95/159的320-1和PPDU中心频率为63/127/191的320-2。关于320-1和320-2的描述可参见背景技术中的描述，在此不赘述。320MHz的信道划分方式可通过一个比特来指示。例如，比特为1时，指示320-1；比特为0时，指示320-2。或者，比特为0时，指示320-1；比特为1时，指示320-2。
主80MHz的位置可通过2个或2个以上的比特来指示。例如，以通过2个比特指示主80MHz的位置为例。比特为00时，指示主80MHz为320MHz内频率从低到高的4个80MHz中的第一个；比特为01时，指示主80MHz为320MHz内频率从低到高的4个80MHz中的第二个；比特为10时，指示主80MHz为320MHz内频率从低到高的4个80MHz中的第三个；比特为11时，指示主80MHz为320MHz内频率从低到高的4个80MHz中的第四个。
再如，以通过3个比特指示主80MHz的位置为例。可以采用相对指示法，指示主80MHz所在的位置。如图7所示，主80MHz与触发帧所在的80MHz有7种相对位置关系。当比特 为110时，指示主80MHz为比承载触发帧所在的80MHz频率高240MHz的80MHz；当比特为101时，指示主80MHz为比承载触发帧所在的80MHz频率高160MHz的80MHz；当比特为100时，指示主80MHz为比承载触发帧所在的80MHz频率高80MHz的80MHz；当比特为000时，指示主80MHz为承载触发帧所在的80MHz；当比特为001时，指示主80MHz为比承载触发帧所在的80MHz频率低80MHz的80MHz；当比特为010时，指示主80MHz为比承载触发帧所在的80MHz频率低160MHz的80MHz；当比特为011时，指示主80MHz为比承载触发帧所在的80MHz频率低240MHz的80MHz。
站点基于320MHz的信道划分方式就能确定RA-RU在哪个320MHz中，从而站点可以在该320MHz中来确定RA-RU所在的80MHz的位置，进而可基于RA-RU所在的80MHz的位置来确定RA-RU的位置。
可选的，站点可基于主80MHz的位置在RA-RU所在的320MHz中确定RA-RU所在的80MHz的位置。例如，假设指示信息指示320MHz的信道划分方式为320-1以及主80MHz为在320MHz内频率从低到高的4个80MHz中的第一个80MHz。承载触发帧所在的80MHz为图1中的第3个80MHz。由于320MHz的信道划分方式为320-1，因此站点确定RA-RU在320-1对应的第一个320MHz中。那么主80MHz就为图1中的第一个80MHz。假设站点确定RA-RU位于主160MHz中。RU分配子字段的第一个比特指示次80MHz。也就是说，RA-RU位于主160MHz中的次80MHz中。由于主80MHz为图1中的第一个80MHz，那么主160MHz为图1中的第一个160MHz。因此，主160MHz中的次80MHz为图3中的第二个80MHz。因此，站点确定RA-RU位于图3中的第二个80MHz中。站点可在图3中的第二个80MHz中确定分配的RA-RU的位置。
站点也可不基于主80MHz的位置在RA-RU所在的320MHz中确定RA-RU所在的80MHz的位置。具体可参见下文中的描述，在此不赘述。
本申请实施例中，可通过以下方式①或方式②指示第一用户信息字段用于为非关联的EHTSTA分配RA-RU，其中：
方式①：第一用户信息字段包括第一关联标识AID12子字段，该第一AID12子字段的值为第一值，该第一值为2008-2044中的一个值，该第一AID12子字段用于指示该第一用户信息字段用于为非关联的EHTSTA分配RA-RU。其中，2008-2044为802.11ax中AID12子字段的保留值。
下表1为802.11ax中AID12子字段的值和对应的描述。如下表1所示，当AID12子字段的值为0时，AID12子字段用于指示其所在的用户信息字段用于给关联HE STA分配一个RA-RU或多个连续RA-RU。当AID12子字段的值为1-2007时，AID12子字段用于指示其所在的用户信息字段用于指示AID与AID12子字段的值相同的关联STA的信息。2008-2044为保留值。当AID12子字段的值为2045时，AID12子字段用于指示其所在的用户信息字段用于给非关联HE STA分配一个RA-RU或多个连续RA-RU。当AID12子字段的值为2046时，AID12子字段用于指示未分配的RU。由于2008-2004是保留值，因此，在802.11be中可将AID12子字段的值设置为2008-2004中的一个值，来指示用户信息字段用于为非关联的EHTSTA分配RA-RU。通过802.11ax中预留的AID12子字段的值来指示用户信息字段用于为非关联的EHTSTA分配RA-RU，能够更加灵活地为非关联的EHTSTA分配RA-RU。
表1
Figure PCTCN2021136972-appb-000001
Figure PCTCN2021136972-appb-000002
在一种可能的实现中，指示信息的比特位于第一用户信息字段中。具体地，指示信息的部分或全部比特位于第一用户信息字段中。指示信息的比特位于第一用户信息字段中时，可以由第一用户信息字段中的一个子字段来携带指示信息的比特，或者由第一用户信息字段中的多个子字段共同来携带指示信息的比特。
例如，以指示信息的全部比特位于第一用户信息字段为例。假设指示信息具有3个比特。可以由第一用户信息字段中的子字段1携带指示信息的这3个比特。或者，由第一用户信息字段中的子字段1携带指示信息的第一个比特。由第一用户信息字段中的子字段2携带指示信息的第二个比特。由第一用户信息字段中的子字段3携带指示信息的第三个比特。
再如，以指示信息的部分比特位于第一用户信息字段为例。假设指示信息具有3个比特。可以由第一用户信息字段中的子字段1携带指示信息的2个比特。或者，由第一用户信息字段中的子字段1携带指示信息的第一个比特。由第一用户信息字段中的子字段2携带指示信息的第二个比特。指示信息的剩余一个比特由触发帧中除第一用户信息字段之外的字段携带。
可选的，指示信息的比特位于第一用户信息字段中，触发帧还包括第二用户信息字段，第二用户信息字段包括第二调制编码策略MCS子字段，第二MCS子字段包括4个比特，第二用户信息字段用于指示非RA-RU STA的信息；第一用户信息字段包括第一MCS子字段，第一MCS子字段的长度小于4个比特。
如上表1所示，当第二用户信息字段中的AID12子字段的值为1-2007中分配给某个STA的AID的值时，第二用户信息字段用于指示非RA-RU STA的信息。因为随机接入通常传输的帧都采用较低的MCS。因此第一用户信息字段中的MCS子字段无需通过4个比特来指示调制方式。第一用户信息字段中的MCS子字段只需要指示较低的几种MCS调制方式即可。可以将第一用户信息字段中的MCS子字段的比特数量从4个比特缩减至2-3个比特。空余出的1或多个比特用来指示信道划分信息。这样就能在不改变第一用户信息字段的比特总数量的情况下，通过第一用户信息字段携带指示信息的比特。
举例来说，如图8所示，触发帧包括第一用户信息字段和第二用户信息字段。其中，第二用户信息字段的AID12子字段的值为1，指示第二用户信息字段用于指示非RA-RU STA的信息。第二用户信息字段中的MCS子字段包括4个比特。第一用户信息字段的AID12子字段的值为2044，指示第一用户信息字段用于为非关联的EHT STA分配RA-RU。第一用户信息字段中的MCS子字段包括3个比特。信道划分指示子字段为在第一用户信息字段中新增的一个子字段。信道划分指示子字段包括1个比特。信道划分指示字段包括指示信息的全部或部分比特。当信道划分指示字段包括指示信息的部分比特时，指示信息的其他比特可位于第一用户信息字段的其他位置，或位于触发帧的公共信息字段或下文所描述的第三用户信息字段中。信息划分指示子字段在第一用户信息字段中可在AID12子字段之后的任意位置，信息划分指示子字段也可以称为其他名称，本申请实施例不做限定。其中，第一用户信息字段和第二用户信息字段的先后顺序不做限定，第一用户信息字段可位于第二用户信息字段之前 或之后，后文同理。
可选的，指示信息的比特位于第一用户信息字段中，触发帧还包括第二用户信息字段，第二用户信息字段包括高效HE/EHT格式子字段，第二用户信息字段用于指示非RA-RU STA的信息；指示信息在第一用户信息字段中的比特位置与HE/EHT格式子字段在第二用户信息字段中的比特位置相同。
如上表1所示，当第二用户信息字段中的AID12子字段的值为1-2007中分配给某个STA的AID的值时，第二用户信息字段用于指示非RA-RU STA的信息。HE/EHT格式子字段用于指示第二用户信息字段是HE STA用户信息字段还是EHT STA用户信息字段。HE/EHT格式子字段包括1个比特。由于第一用户信息字段中的第一AID12子字段已经指示了第一用户信息字段是针对EHT STA的用户信息字段。因此，可以不在第一用户信息字段中设置HE/EHT格式子字段，将原本HE/EHT格式子字段的比特位置用来携带指示信息。这样就能在不改变第一用户信息字段的比特总数量的情况下，通过第一用户信息字段携带指示信息的比特。
举例来说，如图9所示，触发帧包括第一用户信息字段和第二用户信息字段。其中，第二用户信息字段的AID12子字段的值为1，指示第二用户信息字段用于指示非RA-RU STA的信息。第二用户信息字段中的HE/EHT格式子字段的比特位置为第二用户信息字段中的B38，即位于第二用户信息字段中的第39个比特。第一用户信息字段的AID12子字段的值为2044，指示第一用户信息字段用于为非关联的EHT STA分配RA-RU。第一用户信息字段中的B38为信道划分指示子字段。该信道划分指示子字段为在第一用户信息字段中新增的一个子字段。该信道划分指示子字段包括1个比特。信道划分指示字段包括指示信息的全部或部分比特。当信道划分指示字段包括指示信息的部分比特时，指示信息的其他比特可位于第一用户信息字段的其他位置，或位于触发帧的公共信息字段或下文所描述的第三用户信息字段中。信息划分指示子字段也可以称为其他名称，本申请实施例不做限定。
可选的，第一用户信息字段包括触发帧相关用户信息(trigger dependent user info)子字段，指示信息的比特位于触发帧相关用户信息字段中。具体地，指示信息的部分或全部比特位于触发帧相关用户信息字段中。可选的，指示信息的比特位于触发帧相关用户信息字段中的预留比特所在位置。例如，如图10所示，在802.11ax标准中，触发帧相关用户信息字段中的预留比特在触发帧相关用户信息子字段的第6个比特，即触发帧相关用户信息子字段的B5。指示信息的比特可位于触发帧相关用户信息字段的第6个比特。
在一种可能的实现中，触发帧还包括第三用户信息字段，该第三用户信息字段包括第二AID12字段和第一字段，第二AID12的值为第二值，该第二AID12字段用于指示指示信息的比特位于第一字段中，该第二值为2008-2044中的一个值或第二值为1-2007中的一个未分配给关联STA的AID12的值，且第二值与第一值不相同。其中，指示信息的全部或部分比特位于第一字段中。第一字段可以称为信道划分指示子字段或其他名称。
举例来说，以第一字段为信道划分指示子字段为例。如图11所示，触发帧包括第一用户信息字段和第三用户信息字段。其中，第三用户信息字段的AID12子字段的值为2043，指示该AID12子字段后的信道划分指示子字段携带指示信息的比特。第一用户信息字段的AID12子字段的值为2044，指示第一用户信息字段用于为非关联的EHT STA分配RA-RU。也就是说，在该可能的实现中，单独使用一个特殊的用户信息字段来携带指示信息的比特，这样不需要复杂化针对非关联的EHT STA的第一用户信息字段的设计，简化接收端对第一用户信息字段的解读。其中，第一用户信息字段和第三用户信息字段的先后顺序不做限定，第一用户信息字段可位于第三用户信息字段之前或之后，后文同理。
在一种可能的实现中，触发帧还包括公共信息字段，指示信息的比特位于公共信息字段中。具体地，指示信息的全部或部分比特位于公共信息字段中。通过在公共信息字段中携带指示信息的比特的好处在于，公共信息字段中的预留比特较多，并且不需要复杂化针对非关联的EHT STA的第一用户信息字段的设计，可简化接收端对第一用户信息字段的解读。
可选的，指示信息的比特位于公共信息字段中的预留比特的位置。例如，如图12所示，在802.11ax标准中，公共信息字段中的预留比特的位置为公共信息字段中的第55个比特-第64个比特(即B54～B63)。指示信息的比特可位于公共信息字段中第55个比特-第64个比特之间。
可选的，指示信息的比特位于公共信息字段中上行带宽(UL BW)子字段。例如，可以使UL BW子字段中在加入除20/40/80/160MHz带宽以外的两个用于指示320-1和320-2的条目。这样就可以通过UL BW子字段来指示320MHz的信道划分方式。
在一种可能的实现中，信道划分信息包括320MHz的信道划分方式，第一用户信息字段还包括资源单元分配(RU allocation)子字段和低/高160MHz分段子字段，低/高160MHz分段子字段用于指示低160MHz或高160MHz，资源单元分配子字段的第一个比特指示低/高160MHz分段子字段指示的160MHz中的低80MHz或高80MHz。
在该可能的实现中，低/高160MHz分段子字段用于按照绝对频率来指示RA-RU是位于320MHz带宽中的低频率160MHz还是高频率160MHz。资源单元分配子字段中的第一个比特也是按照绝对频率来指示RA-RU是位于160MHz中的低频率80MHz或高频率80MHz。这样站点只需要基于320MHz的信道划分方式确定RA-RU所在的320MHz，无需知道主80MHz的位置，就能确定RA-RU所在的80MHz，进而能够确定RA-RU的位置。也就是说，在这种方式中指示信息无需指示主80MHz的位置，有利于减小指示信令的开销。
例如，假设指示信息指示320MHz的信道划分方式为320-1。承载触发帧所在的80MHz为图1中的第3个80MHz。由于320MHz的信道划分方式为320-1，因此站点确定RA-RU在320-1对应的第一个320MHz中。低/高160MHz分段子字段指示高频率160MHz，RU分配子字段的第一个比特指示低频率80MHz。因此，RA-RU位于图1中320-1对应的第一个320MHz中的高频率160MHz中的低频率80MHz中。图1中信道的频率从左到右依次增大。因此，RA-RU位于图1中的第三个80MHz。
在一种可能的实现中，触发帧可以只包括第一用户信息字段，或者，包括第一用户信息字段和第二用户信息字段，或者，包括第一用户信息字段和第三用户信息字段，或者，包括第一用户信息字段、第二用户信息字段和第三用户信息字段。
方式②：第一用户信息字段包括第一关联标识AID12子字段，该第一AID12子字段的值为2045，该第一AID12子字段用于指示该第一用户信息字段用于为非关联的EHTSTA分配RA-RU。
从上表1可知，在802.11ax中是通过使AID12子字段的值为2045来指示其所在的用户信息字段用于给非关联HE STA分配RA-RU。也就是说，在方式②中，通过使第一用户信息字段中的AID12子字段的值为2045，使第一用户信息字段同时为非关联的HE STA和非关联的EHT STA分配RA-RU。这种情况下，随机接入只能在HE STA也支持的主160MHz信道内进行。这样做的好处是无需额外设计针对EHT STA的UORA的用户信息字段。
在一种可能的实现中，触发帧还包括公共信息字段，第一用户信息字段包括触发帧相关用户信息子字段，指示信息包括多个比特，该指示信息的比特位于以下一个或多个位置：公共信息字段、第一用户信息字段中的预留比特的位置或触发帧相关用户信息子字段中的预留 比特的位置。
例如，指示信息的第一部分比特位于公共信息字段，指示信息的第二部分比特位于第一用户信息字段的预留比特的位置。再如，指示信息的第一部分比特位于公共信息字段，指示信息的第二部分比特位于第一用户信息字段的预留比特的位置，指示信息的第三部分比特位于触发帧相关用户信息子字段的预留比特的位置。其中，第一用户信息字段的预留比特的位置为第一用户信息字段的第40个比特(B39)。触发帧相关用户信息子字段的预留比特的位置为触发帧相关用户信息子字段的第6个比特(B5)。
可选的，指示信息的第一部分比特可位于公共信息字段的预留比特的位置。如图12所示，公共信息字段中的预留比特的位置为公共信息字段中的第55个比特-第64个比特(即B54～B63)。或者，指示信息的第一部分比特位于公共信息字段中UL BW子字段。例如，可以使UL BW子在加入除20/40/80/160MHz带宽以外的两个用于指示320-1和320-2的条目。这样就可以通过UL BW子字段来指示320MHz的信道划分方式。
举例来说，假设指示信息具有3个比特。指示信息的第一部分比特包括1个比特，用于指示320MHz的信道划分方式。指示信息的第二部分比特包括1个比特，第三部分比特包括1个比特，第二部分比特和第三部分比特共同用于指示主80MHz的位置。如何通过两个比特来指示主80MHz的位置可参见前文的描述，在此不赘述。如图13所示，指示信息的第一部分比特位于公共信息字段的第64个比特(B63)。指示信息的第二部分比特位于第一用户信息字段的第40个比特(B39)。指示信息的第三部分比特位于触发帧相关用户信息子字段的第6个比特(B5)。
在一种可能的实现中，触发帧还包括第三用户信息字段，该第三用户信息字段包括第二AID12字段和第一字段，第二AID12的值为第二值，该第二AID12字段用于指示指示信息的比特位于第一字段中，该第二值为2008-2044中的一个值，或第二值为1-2007中的一个未分配给关联STA的AID12的值。其中，指示信息的全部或部分比特位于第一字段中。第一字段可以称为信道划分指示子字段或其他名称。
举例来说，以第一字段为信道划分指示子字段为例。如图14所示，触发帧包括第一用户信息字段和第三用户信息字段。其中，第三用户信息字段的AID12子字段的值为2043，指示该AID12子字段后的信道划分指示子字段携带指示信息的比特。第一用户信息字段的AID12子字段的值为2045，指示第一用户信息字段用于为非关联的EHT STA分配RA-RU。也就是说，在该可能的实现中，单独使用一个特殊的用户信息字段来携带指示信息的比特，这样不需要复杂化针对非关联的EHT STA的第一用户信息字段的设计，简化接收端对第一用户信息字段的解读。
在一种可能的实现中，触发帧还包括公共信息字段，指示信息的比特位于公共信息字段中。具体地，指示信息的全部或部分比特位于公共信息字段中。通过在公共信息字段中携带指示信息的比特，这样就不需要复杂化针对非关联的EHT STA的第一用户信息字段的设计，简化接收端对第一用户信息字段的解读。
可选的，指示信息的比特位于公共信息字段中的预留比特的位置。例如，如图12所示，公共信息字段中的预留比特的位置为公共信息字段中的第55个比特-第64个比特(即B54～B63)。指示信息的比特可位于公共信息字段中第55个比特-第64个比特之间。
可选的，指示信息的比特位于公共信息字段中UL BW子字段。例如，可以使UL BW子在加入除20/40/80/160MHz带宽以外的两个用于指示320-1和320-2的条目。这样就可以通过UL BW子字段来指示320MHz的信道划分方式。
在一种可能的实现中，为了使非关联的EHT STA能够获取到信道划分信息，也可以强制每个STA在进行UORA之前必须通过信标帧(beacon frame)或者探测应答帧(probe responseframe)获悉信道划分的指示。
请参见图15，图15示出了本申请实施例的一种通信装置的结构示意图。图15所示的通信装置可以用于执行上述图6所描述的方法实施例中接入点的部分或全部功能。该装置可以是接入点，也可以是接入点中的装置，或者是能够和接入点匹配使用的装置。其中，该通信装置还可以为芯片系统。图15所示的通信装置可以包括通信单元1501和处理单元1502。其中，处理单元1502，用于进行数据处理。通信单元1501集成有接收单元和发送单元。通信单元1501也可以称为收发单元。或者，也可将通信单元1501拆分为接收单元和发送单元。下文的处理单元1502和通信单元1501同理，下文不再赘述。其中：
处理单元1502，用于生成触发帧，触发帧包括第一用户信息字段，第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，触发帧携带用于指示信道划分信息的指示信息；通信单元1501，用于向站点发送触发帧。
在一种可能的实现中，第一用户信息字段包括第一关联标识AID12子字段，第一AID12子字段的值为第一值，第一值为2008-2044中的一个值或第一值为1-2007中的一个未分配给关联STA的AID12的值，第一AID12子字段用于指示第一用户信息字段用于为非关联的EHTSTA分配RA-RU。
在一种可能的实现中，指示信息的比特位于第一用户信息字段中。
在一种可能的实现中，触发帧还包括第二用户信息字段，第二用户信息字段包括第二调制编码策略MCS子字段，第二MCS子字段包括4个比特，第二用户信息字段用于指示非RA-RU STA的信息；第一用户信息字段包括第一MCS子字段，第一MCS子字段的长度小于4个比特。
在一种可能的实现中，触发帧还包括第二用户信息字段，第二用户信息字段包括高效HE/EHT格式子字段，第二用户信息字段用于指示非RA-RU STA的信息；指示信息在第一用户信息字段中的比特位置与HE/EHT格式子字段在第二用户信息字段中的比特位置相同。
在一种可能的实现中，第一用户信息字段包括触发帧相关用户信息子字段，指示信息的比特位于触发帧相关用户信息字段中。
在一种可能的实现中，触发帧还包括第三用户信息字段，第三用户信息字段包括第二AID12字段和第一字段，第二AID12的值为第二值，第二AID12字段用于指示指示信息的比特位于第一字段中，第二值为2008-2044中的一个值或第二值为1-2007中的一个未分配给关联STA的AID12的值，且第二值与第一值不相同。
在一种可能的实现中，信道划分信息包括320兆赫兹MHz的信道划分方式，第一用户信息字段还包括资源单元分配子字段和低/高160MHz分段子字段，低/高160MHz分段子字段用于指示RA-RU位于低160MHz或高160MHz，资源单元分配子字段的第一个比特指示低/高160MHz分段子字段指示的160MHz中的低80MHz或高80MHz。
在一种可能的实现中，第一用户信息字段包括第一关联标识AID12子字段，第一AID12子字段的值为2045，第一AID12子字段用于指示第一用户信息字段用于为非关联的EHTSTA分配RA-RU。
在一种可能的实现中，触发帧还包括公共信息字段，第一用户信息字段包括触发帧相关用户信息子字段，指示信息包括多个比特，该指示信息的比特位于以下一个或多个位置：公 共信息字段、第一用户信息字段中的预留比特的位置或触发帧相关用户信息子字段中的预留比特的位置。
在一种可能的实现中，触发帧还包括第三用户信息字段，第三用户信息字段包括第二AID12字段和第一字段，第二AID12的值为第二值，第二AID12字段用于指示指示信息的比特位于第一字段中，第二值为2008-2044中的一个值，或第二值为1-2007中的一个未分配给关联STA的AID12的值。
在一种可能的实现中，触发帧还包括公共信息字段，指示信息的比特位于公共信息字段中。
在一种可能的实现中，信道划分信息包括以下一个或多个信息：320兆赫兹MHz的信道划分方式和主80MHz的位置。
请参见图15，图15示出了本申请实施例的一种通信装置的结构示意图。图15所示的通信装置可以用于执行上述图6所描述的方法实施例中站点的部分或全部功能。该装置可以是站点，也可以是站点中的装置，或者是能够和站点匹配使用的装置。其中，该通信装置还可以为芯片系统。图15所示的通信装置可以包括通信单元1501和处理单元1502。其中：
通信单元1501，用于接收接入点发送的触发帧，触发帧包括第一用户信息字段，第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，触发帧携带用于指示信道划分信息的指示信息；处理单元1502，用于从触发帧中读取信道划分信息。
在一种可能的实现中，第一用户信息字段还包括资源单元RU分配子字段，RU分配子字段用于分配RA-RU；处理单元1502，还用于基于信道划分信息和RU分配子字段读取RA-RU的位置；通信单元1501，还用于基于RA-RU的位置进行随机接入传输。
可能的实现方式可参见上文中通信装置的可能实现方式，在此不赘述。
如图16所示为本申请实施例提供的一种通信装置160，用于实现上述图6中接入点的功能。该装置可以是接入点或用于接入点的装置。用于接入点的装置可以为接入点内的芯片系统或芯片。其中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
或者，通信装置160，用于实现上述图6中站点的功能。该装置可以是站点或用于站点的装置。用于站点的装置可以为站点内的芯片系统或芯片。
通信装置160包括至少一个处理器1620，用于实现本申请实施例提供的方法中接入点或站点的数据处理功能。装置160还可以包括通信接口1610，用于实现本申请实施例提供的方法中接入点或站点的收发操作。在本申请实施例中，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口，用于通过传输介质和其它设备进行通信。例如，通信接口1610用于装置160中的装置可以和其它设备进行通信。处理器1620利用通信接口1610收发数据，并用于实现上述方法实施例图6所述的方法。
装置160还可以包括至少一个存储器1630，用于存储程序指令和/或数据。存储器1630和处理器1620耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器1620可能和存储器1630协同操作。处理器1620可能执行存储器1630中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
本申请实施例中不限定上述通信接口1610、处理器1620以及存储器1630之间的具体连接介质。本申请实施例在图16中以存储器1630、处理器1620以及通信接口1610之间通过 总线1640连接，总线在图16中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图16中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
装置160具体是用于接入点或站点的装置时，例如装置160具体是芯片或者芯片系统时，通信接口1610所输出或接收的可以是基带信号。装置160具体是接入点或站点时，通信接口1610所输出或接收的可以是射频信号。在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、操作及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的操作可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在处理器上运行时，上述方法实施例的方法流程得以实现。
本申请实施例还提供一种计算机程序产品，当所述计算机程序产品在处理器上运行时，上述方法实施例的方法流程得以实现。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些操作可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
本申请提供的各实施例的描述可以相互参照，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。为描述的方便和简洁，例如关于本申请实施例提供的各装置、设备的功能以及执行的操作可以参照本申请方法实施例的相关描述，各方法实施例之间、各装置实施例之间也可以互相参考、结合或引用。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (33)

  1. 一种信道划分信息指示方法，其特征在于，所述方法包括：
    接入点生成触发帧，所述触发帧包括第一用户信息字段，所述第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，所述触发帧携带用于指示信道划分信息的指示信息；
    所述接入点向站点发送所述触发帧。
  2. 一种信道划分信息指示方法，其特征在于，所述方法包括：
    站点接收接入点发送的触发帧，所述触发帧包括第一用户信息字段，所述第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，所述触发帧携带用于指示信道划分信息的指示信息；
    所述站点从所述触发帧中读取所述信道划分信息。
  3. 根据权利要求2所述的方法，其特征在于，第一用户信息字段还包括资源单元RU分配子字段，所述RU分配子字段用于分配所述RA-RU；所述方法还包括：
    所述站点基于所述信道划分信息和所述RU分配子字段读取所述RA-RU的位置；
    所述站点基于所述RA-RU的位置进行随机接入传输。
  4. 根据权利要求1～3中任意一项所述的方法，其特征在于，所述第一用户信息字段包括第一关联标识AID12子字段，所述第一AID12子字段的值为第一值，所述第一值为2008-2044中的一个值或所述第一值为1-2007中的一个未分配给关联STA的AID12的值，所述第一AID12子字段用于指示所述第一用户信息字段用于为非关联的EHTSTA分配RA-RU。
  5. 根据权利要求4所述的方法，其特征在于，所述指示信息的比特位于所述第一用户信息字段中。
  6. 根据权利要求5所述的方法，其特征在于，所述触发帧还包括第二用户信息字段，所述第二用户信息字段包括第二调制编码策略MCS子字段，所述第二MCS子字段包括4个比特，所述第二用户信息字段用于指示非RA-RU STA的信息；所述第一用户信息字段包括第一MCS子字段，所述第一MCS子字段的长度小于4个比特。
  7. 根据权利要求5所述的方法，其特征在于，所述触发帧还包括第二用户信息字段，所述第二用户信息字段包括高效HE/EHT格式子字段，所述第二用户信息字段用于指示非RA-RU STA的信息；所述指示信息在所述第一用户信息字段中的比特位置与所述HE/EHT格式子字段在所述第二用户信息字段中的比特位置相同。
  8. 根据权利要求5所述的方法，其特征在于，所述第一用户信息字段包括触发帧相关用户信息子字段，所述指示信息的比特位于所述触发帧相关用户信息字段中。
  9. 根据权利要求4所述的方法，其特征在于，所述触发帧还包括第三用户信息字段，所述第三用户信息字段包括第二AID12字段和第一字段，所述第二AID12的值为第二值，所述第二AID12字段用于指示所述指示信息的比特位于所述第一字段中，所述第二值为2008-2044中的一个值或所述第二值为1-2007中的一个未分配给关联STA的AID12的值，且所述第二值与所述第一值不相同。
  10. 根据权利要求4～9中任意一项所述的方法，其特征在于，所述信道划分信息包括320兆赫兹MHz的信道划分方式，所述第一用户信息字段还包括资源单元分配子字段和低/高160MHz分段子字段，所述低/高160MHz分段子字段用于指示所述RA-RU位于低160MHz或高160MHz，所述资源单元分配子字段的第一个比特指示所述低/高160MHz分段子字段指示的160MHz中的低80MHz或高80MHz。
  11. 根据权利要求1～3中任意一项所述的方法，其特征在于，所述第一用户信息字段包括第一关联标识AID12子字段，所述第一AID12子字段的值为2045，所述第一AID12子字段用于指示所述第一用户信息字段用于为非关联的EHTSTA分配RA-RU。
  12. 根据权利要求11所述的方法，其特征在于，所述触发帧还包括公共信息字段，所述第一用户信息字段包括触发帧相关用户信息子字段，所述指示信息包括多个比特，所述指示信息的比特位于以下一个或多个位置：公共信息字段、所述第一用户信息字段中的预留比特的位置或所述触发帧相关用户信息子字段中的预留比特的位置。
  13. 根据权利要求11所述的方法，其特征在于，所述触发帧还包括第三用户信息字段，所述第三用户信息字段包括第二AID12字段和第一字段，所述第二AID12的值为第二值，所述第二AID12字段用于指示所述指示信息的比特位于所述第一字段中，所述第二值为2008-2044中的一个值，或所述第二值为1-2007中的一个未分配给关联STA的AID12的值。
  14. 根据权利要求4或11所述的方法，其特征在于，所述触发帧还包括公共信息字段，所述指示信息的比特位于所述公共信息字段中。
  15. 根据权利要求1～9中任意一项或权利要求11～14中任意一项所述的方法，其特征在于，所述信道划分信息包括以下一个或多个信息：320兆赫兹MHz的信道划分方式和主80MHz的位置。
  16. 一种通信装置，其特征在于，所述通信装置包括：
    处理单元，用于生成触发帧，所述触发帧包括第一用户信息字段，所述第一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，所述触发帧携带用于指示信道划分信息的指示信息；
    通信单元，用于向站点发送所述触发帧。
  17. 一种通信装置，其特征在于，所述通信装置包括：
    通信单元，用于接收接入点发送的触发帧，所述触发帧包括第一用户信息字段，所述第 一用户信息字段用于为非关联的超高吞吐率站点EHTSTA分配随机接入资源单元RA-RU，所述触发帧携带用于指示信道划分信息的指示信息；
    处理单元，用于从所述触发帧中读取所述信道划分信息。
  18. 根据权利要求17所述的装置，其特征在于，第一用户信息字段还包括资源单元RU分配子字段，所述RU分配子字段用于分配所述RA-RU；
    所述处理单元，还用于基于所述信道划分信息和所述RU分配子字段读取所述RA-RU的位置；
    所述通信单元，还用于基于所述RA-RU的位置进行随机接入传输。
  19. 根据权利要求16～18中任意一项所述的装置，其特征在于，所述第一用户信息字段包括第一关联标识AID12子字段，所述第一AID12子字段的值为第一值，所述第一值为2008-2044中的一个值或所述第一值为1-2007中的一个未分配给关联STA的AID12的值，所述第一AID12子字段用于指示所述第一用户信息字段用于为非关联的EHTSTA分配RA-RU。
  20. 根据权利要求19所述的装置，其特征在于，所述指示信息的比特位于所述第一用户信息字段中。
  21. 根据权利要求20所述的装置，其特征在于，所述触发帧还包括第二用户信息字段，所述第二用户信息字段包括第二调制编码策略MCS子字段，所述第二MCS子字段包括4个比特，所述第二用户信息字段用于指示非RA-RU STA的信息；所述第一用户信息字段包括第一MCS子字段，所述第一MCS子字段的长度小于4个比特。
  22. 根据权利要求20所述的装置，其特征在于，所述触发帧还包括第二用户信息字段，所述第二用户信息字段包括高效HE/EHT格式子字段，所述第二用户信息字段用于指示非RA-RU STA的信息；所述指示信息在所述第一用户信息字段中的比特位置与所述HE/EHT格式子字段在所述第二用户信息字段中的比特位置相同。
  23. 根据权利要求20所述的装置，其特征在于，所述第一用户信息字段包括触发帧相关用户信息子字段，所述指示信息的比特位于所述触发帧相关用户信息字段中。
  24. 根据权利要求19所述的装置，其特征在于，所述触发帧还包括第三用户信息字段，所述第三用户信息字段包括第二AID12字段和第一字段，所述第二AID12的值为第二值，所述第二AID12字段用于指示所述指示信息的比特位于所述第一字段中，所述第二值为2008-2044中的一个值或所述第二值为1-2007中的一个未分配给关联STA的AID12的值，且所述第二值与所述第一值不相同。
  25. 根据权利要求19～24中任意一项所述的装置，其特征在于，所述信道划分信息包括320兆赫兹MHz的信道划分方式，所述第一用户信息字段还包括资源单元分配子字段和低/高160MHz分段子字段，所述低/高160MHz分段子字段用于指示所述RA-RU位于低160MHz或高160MHz，所述资源单元分配子字段的第一个比特指示所述低/高160MHz分段子字段指 示的160MHz中的低80MHz或高80MHz。
  26. 根据权利要求16～18中任意一项所述的装置，其特征在于，所述第一用户信息字段包括第一关联标识AID12子字段，所述第一AID12子字段的值为2045，所述第一AID12子字段用于指示所述第一用户信息字段用于为非关联的EHTSTA分配RA-RU。
  27. 根据权利要求26所述的装置，其特征在于，所述触发帧还包括公共信息字段，所述第一用户信息字段包括触发帧相关用户信息子字段，所述指示信息包括多个比特，所述指示信息的比特位于以下一个或多个位置：公共信息字段、所述第一用户信息字段中的预留比特的位置或所述触发帧相关用户信息子字段中的预留比特的位置。
  28. 根据权利要求26所述的装置，其特征在于，所述触发帧还包括第三用户信息字段，所述第三用户信息字段包括第二AID12字段和第一字段，所述第二AID12的值为第二值，所述第二AID12字段用于指示所述指示信息的比特位于所述第一字段中，所述第二值为2008-2044中的一个值，或所述第二值为1-2007中的一个未分配给关联STA的AID12的值。
  29. 根据权利要求19或26所述的装置，其特征在于，所述触发帧还包括公共信息字段，所述指示信息的比特位于所述公共信息字段中。
  30. 根据权利要求16～24中任意一项或权利要求26～29中任意一项所述的装置，其特征在于，所述信道划分信息包括以下一个或多个信息：320兆赫兹MHz的信道划分方式和主80MHz的位置。
  31. 一种通信装置，其特征在于，包括处理器和通信接口；
    所述通信接口用于与其它通信装置进行通信；所述处理器用于运行程序，以使得所述通信装置实现如权利要求1～15中任一项所述的方法。
  32. 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中存储有计算机可执行指令，所述计算机可执行指令在被所述计算机调用时用于使所述计算机执行上述权利要求1-15中任一项所述的方法。
  33. 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：计算机程序代码，所述计算机程序代码被计算机运行时，使得所述计算机执行如权利要求1～15中任一项所述的方法。
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