METHOD AND DEVICE FOR CONFIGURING SPATIAL REUSE FIELD IN WIRELESS LAN SYSTEM

Abstract

A method and device are proposed for configuring a spatial reuse field in a wireless LAN system. Specifically, a receiving STA receives a wake-up frame from a transmitting STA. The receiving STA transmits a TB PPDU to the transmitting STA over a preconfigured frequency band. The wake-up frame comprises a common information field and a special user information field. The common information field comprises the first four spatial reuse fields. The special user information field comprises the fifth and sixth spatial reuse fields. When the preconfigured frequency band is a 20 MHz band, the first four spatial reuse fields are configured by the value of the fifth spatial reuse field.

Description

METHOD AND DEVICE TO CONFIGURE REUSE FIELD q LOzcn / eznz / q / YiAi SPATIAL IN WIRELESS LAN SYSTEM TECHNICAL FIELD [1] This specification relates to a method for configuring a spatial reuse field in a WL7X.N system and specifically to a method and apparatus for configuring an activation frame and a TB PPDU that supports spatial reuse in two WLAN systems. PREVIOUS TECHNIQUE [2] A wireless local area network (WLAN) has been improved in several ways. For example, the IEEE 802.11ax standard proposed an improved communication environment using orthogonal frequency division multiple access (OFDMA) and multi-user downlink multiple-input multiple-output (DL MU MIMO) techniques. [3] This specification proposes a technical feature that can be used in a new communication standard. For example, the new communication standard could be an extremely high-performance (EHT) standard that is currently under discussion. The EHT standard could use an enhanced bandwidth appendage, an improved PHY layer protocol data unit (PPDU) structure, an enhanced sequence, a hybrid automatic repeat request (HARQ) scheme, or similar features, as recently proposed. The EHT standard could be designated IEEE 802.libe. [4] In a new WLAN standard, a greater number of spatial streams can be used. In this case, in order to correctly use the greater number of spatial streams, it may be necessary to implement a signaling technique in the WLAN system. BRIEF DESCRIPTION OF THE INVENTION TECHNICAL PROBLEM [5] The present specification proposes a method and apparatus for configuring an activation frame and a TB PPDU that supports spatial reuse in a WLAN system. q LOzcn / eznz / q / YiAi TECHNICAL SOLUTION [6] An example of the present specification proposes a method for configuring an activation frame and a TB PPDU that supports spatial reuse. [7] This mode can be implemented in a network environment that supports a next-generation WLAN system (IEEE 802.11ax or EHT WLAN system). The next-generation wireless LAN system is an enhanced WLAN system based on an 802.11ax system and can therefore meet backward compatibility requirements for the 802.11ax system. [8] This modality proposes a method for configuring an activation frame and a TB PPDU that simultaneously supports spatial reuse of an 802.11ax (or HE) WLAN system and an 802.libe (or EHT) WLAN system. [9] A receiving station (STA) receives an activation frame from a transmitting STA.

[10] The receiving STA transmits a trigger-based physical protocol data unit (TB PPDU) to the transmitting STA over a pre-set frequency band.

[11] The activation plot includes a common information field and a special user information field. The common information field includes the first four spatial reuse fields. The special user information field includes the fifth and sixth spatial reuse fields.

[12] This mode involves a situation where the activation frame triggers the EHT TB PPDU. The common information field is a common information field of the EHT variant and includes four spatial reuse fields (HSR1, HSR2, HSR3, and HSR4). The four spatial reuse fields HSR1, HSR2, HSR3, and HSR4 are defined for the spatial reuse of the OBSS HE STA. The special user information field is included in the activation frame when an association identifier (AID) is 2007 and includes two spatial reuse fields (ESR1 and ESR2). The two spatial reuse fields (ESR1 and ESR2) are defined for the spatial reuse of the OBSS EHT STA.

[13] When the preset frequency band is a 20 MHz band, the first to fourth spatial reuse fields are set to a value of the fifth spatial reuse field (HSR1 = HSR2 = HSR3 = HSR4 = ESR1). The OBSS HE STA can determine that the activation frame activates a 20 MHz HE TB PPDU.

[14] When the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value of the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value of the sixth spatial reuse field (HSR1 = HSR3 = ESR1 / HSR2 = HSR4 = ESR2). The OBSS HE STA can determine that the activation frame activates a 40 MHz HE TB PPDU.

[15] When the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field (HSR1 = HSR2 = ESR1 / HSR3 = q LOzcn / eznz / q / YiAi HSR4 = ESR2 ) . The OBSS HE STA can determine that the activation frame activates an 80 MHz HE TB PPDU.

[16] When the preset frequency band is a 160 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field (HSR1 = HSR2 = ESR1 / HSR3 = HSR4 = ESR2). The OBSS HE STA can determine that the activation frame activates a 160 MHz HE TB PPDU.

[17] When the preset frequency band is a 320 MHz band, the first four spatial reuse fields are set to a value lower than the values ​​of the fifth and sixth spatial reuse fields (HSR1 = HSR2 = HSR3 = HSR4 = min(ESR1,VSG2)). The OBSS HE STA can determine that the activation frame activates a 160 MHz HE TB PPDU. Since the OBSS HE STA can operate on one of the two 160 MHz channels through which the EHT TB PPDU is transmitted, the HSR value must be a value that can represent both 160 MHz channels. Currently, it is preferable to set the HSR value to a value from a weak channel because it can reduce interference by reducing the OBSS STA's transmit power. q LOzcn / eznz / q / YiAi BENEFICIAL EFFECTS

[18] According to the modality proposed in this specification, the transmitting STA informs the OBSS STA of a permissible interference power value for a specific band (or specific channel) through a spatial reuse value. The OBSS STA then derives its transmit power using the interference power value and the AP TX Power subfield value, and transmits a signal while performing spatial reuse in the specific band (or specific channel). Because the OBSS STA performs spatial reuse, the transmitting STA may not receive interference from the OBSS STA when receiving the TB PPDU. That is, the present modality has the effect of improving performance and efficiency by enabling spatial reuse by the OBSS STA and the stable allocation of transmission resources for a specific band without collision. q LOzcn / eznz / q / YiAi BRIEF DESCRIPTION OF THE DRAWINGS

[19] Figures 1A and 1B show an example of a transmitting and / or receiving apparatus of the present specification.

[20] Figure 2 is a conceptual view illustrating the structure of a wireless local area network (WLAN).

[21] Figure 3 illustrates a general link-establishment process. q LOzcn / eznz / q / YiAi

[22] Figure 4 illustrates an example of a PPDU used in an IEEE standard.

[23] Figure 5 illustrates a resource unit (RU) layout used in a 20 MHz band.

[24] Figure 6 illustrates a schematic of RUs used in a 40 MHz band.

[25] Figure 7 illustrates a schematic of RUs used in an 80 MHz band.

[26] Figure 8 illustrates a structure of an HE- field SIG-3.

[27] Figure 9 illustrates an example in which a plurality of user STAs are assigned to the same RU through a MU-MIMO scheme.

[28] Figure 10 illustrates an example of a PPDU used in this specification.

[29] Figure 11 illustrates an example of a modified transmitting and / or receiving device of this specification.

[30] Figure 12 is a graph showing the effect of increasing and decreasing transmission power and sensitivity on a WLAN.

[31] Figure 13 is an example illustrating a CS area in a WLAN system.

[32] Figure 14 is a graph showing the adjustment rules for OBSS / PD and transmission power.

[33] Figure 15 shows an operation according to UL-MU.

[34] Figure 16 shows an example of a common information field of an activation frame.

[35] Figure 17 shows another example of a common iiiforniaciüii field of an activation frame.

[36] Figure 18 shows a format of a UL spatial reuse subfield.

[37] Figure 19 shows an example of a special user information field format.

[38] Figure 20 shows an example of an EHT user information field format.

[39] Figure 21 shows an example of TB A-PPDU transmission.

[40] Figure 22 is a process flow diagram illustrating the operation of the transmission device according to the present modality.

[41] Figure 23 is a process flow diagram illustrating the operation of the receiving device according to the present modality.

[42] Figure 24 is a flowchart illustrating a procedure for setting up an activation frame and a TB PPDU that supports spatial reuse by an AP in accordance with the present modality.

[43] Figure 25 is a flowchart illustrating a procedure for setting up an activation frame and a TB PPDU that supports spatial reuse by an STA in accordance with the present modality. DETAILED DESCRIPTION OF THE INVENTION

[44] In this specification, A or B may mean only A, only B, or both A and B. In other words, in this specification, A or B may be interpreted as A and / or B. For example, in this specification, A, B, or C may mean only A, only B, only C, or any combination of A, B, and C.

[45] A slash ( / ) or a comma used in this specification may mean and / or. For example, A / B may mean A and / or B. Accordingly, A / B may mean only A, only B, or both A and B. For example, A, B, C may mean A, B, or C.

[46] In this specification, "at least one of A and B" may mean only A, only B, or both A and B. Furthermore, in this specification, the expression "at least one of A or B" or "at least one of A and / or B" may be interpreted as "at least one of A and B."

[47] Furthermore, in this specification, "at least one of A, B, and C" may mean only A, only B, only C, or any combination of A, B, and C. Furthermore, "at least one of A, B, or C" or "at least one of A, B, and / or C" may mean at least one of A, B, and C.

[48] ​​Furthermore, parentheses used in this specification may mean, for example. Specifically, when referred to as control information (signal EHT), it may indicate that signal EHT is proposed as an example of control information. In other words, the control information in this specification is not limited to signal EHT, and signal EHT may be proposed as an example of control information. Moreover, when referred to as control information (i.e., signal EHT), it may also mean that signal EHT is proposed as an example of control information.

[49] The technical features described individually in a figure in this specification may be implemented individually or may be implemented simultaneously.

[50] The following example in this specification can be applied to various wireless communication systems. For example, the following example in this specification can be applied to a wireless local area network (WLAN) system. For example, this specification can be applied to the IEEE 802.11a / g / n / ac standard or the IEEE 802.11a standard. In addition, this specification can also be applied to the recently proposed EHT standard or the IEEE 802.11a standard. In addition, the example in this specification can also be applied to a new, improved WLAN standard derived from the EHT standard or the IEEE 802.11a standard. In addition, the example in this specification can be applied to a mobile communication system.For example, it can be applied to a Long-Term Evolution (LTE) mobile communication system based on a Third Generation Partnership Project (3GPP) standard that is already an evolution of LTE. Furthermore, the example in this specification can be applied to a 5G NR communication system based on the 3GPP standard.

[51] Next, in order to describe a technical feature of the present specification, a technical feature applicable to the present specification will be described.

[52] Figures 1A and 1B show an example of a transmitting apparatus and / or a receiving apparatus of the present specification.

[53] In the example of Figures 1A and 1B, several technical features can be implemented, which are described below. Figures 1A and 1B refer to at least one station (STA). For example, STAs 110 and 120 in this specification may also be referred to by various terms, such as mobile terminal, wireless device, wireless transmit / receive unit (WTRU), user equipment (UE), mobile station (MS), a mobile subscriber unit, or simply a user. STAs 110 and 120 in this specification may also be referred to by various terms, such as a network, a base station, a node B, an access point (AP), a repeater, a router, a relay, or similar. STAs 110 and 120 in this specification may also be referred to by various names, such as receiving apparatus, transmitting apparatus, receiving STA, transmitting STA, receiving device, transmitting device, or similar.

[54] For example, STAs 110 and 120 can serve as an AP or a non-AP. That is, STAs 110 and 120 of this specification can serve as the AP and / or the non-AP.

[55] STAs 110 and 120 of this specification can support several communication standards together in addition to the IEEE 802.11 standard. For example, a communication standard (e.g., LTE, LTEA, 5G NR standard) or similar can be supported based on the 3GPP standard. Furthermore, the STA of this specification can be implemented in various devices such as a mobile phone, a vehicle, a personal computer, or similar devices. Additionally, the STA of this specification can support communication for various communication services, such as voice calls, video calls, data communication, and self-driving (autonomous driving) or similar services.

[56] STAs 110 and 120 of this specification may include a Media Access Control (MAC) conforming to the IEEE 802.11 standard and a physical layer interface for a radio medium.

[57] STAs 110 and 120 will be described below with reference to Figure 1A.

[58] The first STA 110 may include a processor 111, a memory 112 and a transceiver 113. The illustrated process, memory and transceiver may be implemented individually as separate chips, or at least two blocks / functions may be implemented through a single chip.

[59] Transceiver 113 of the first STA performs a signal transmit / receive operation. Specifically, it can transmit / receive an IEEE 802.11 packet (e.g., IEEE 802.11a / b / g / n / ac / ax / be, etc.).

[60] For example, the first STA 110 can perform an operation intended by an AP. For example, the AP's processor 111 can receive a signal through transceiver 113, process a receive (RX) signal, generate a transmit (TX) signal, and provide control for the transmission of the signal. The AP's memory 112 can store a signal (for example, an RX signal) received through transceiver 113 and can store a signal (for example, a TX signal) to transmit through the transceiver.

[61] For example, the second STA 120 can perform an operation intended for a non-AP STA. For example, a non-AP transceiver 123 performs a signal transmit / receive operation. Specifically, it can transmit / receive an IEEE 802.11 packet (e.g., IEEE 802.11a / b / g / n / ac / ax / be packet, etc.).

[62] For example, a non-AP STA processor 121 can receive a signal through transceiver 123, process an RX signal, generate a TX signal, and provide control for the transmission of the signal. A non-AP STA memory 122 can store a signal (for example, an RX signal) received through transceiver 123, and can store a signal (for example, a TX signal) for transmission through the transceiver.

[63] For example, an operation of a device designated as AP in the specification described below can be carried out in the first STA 110 or in the second STA 120. For example, if the first STA 110 is the AP, the operation of the device designated as AP can be controlled by the processor 111 of the first STA 110, and a related signal can be transmitted or received through the transceiver 113 controlled by the processor 111 of the first STA 110. Furthermore, control information related to the operation of the AP or a TX / RX signal from the AP can be stored in memory 112 of the first STA 110. Furthermore, if the second STA 120 is the AP, the operation of the device designated as AP can be controlled by the processor 121 of the second STA 120, and a related signal can be transmitted or received through of transceiver 123 controlled by processor 121 of the second STA 120.In addition, control information related to the operation of the AP or a TX / RX signal from the AP can be stored in memory 122 of the second STA 120.

[64] For example, in the specification described below, an operation of a device designated as non-AP (or user STA) can be performed on either the first STA 110 or the second STA 120. For example, if the second STA 120 is the non-AP, the operation of the device designated as non-AP can be controlled by the processor 121 of the second STA 120, and a related signal can be transmitted or received through the transceiver 123 controlled by the processor 121 of the second STA 120. Furthermore, control information related to the operation of the non-AP or a TX / RX signal from the non-AP can be stored in memory 122 of the second STA 120. For example, if the first STA 110 is the non-AP, the operation of the device designated as non-AP can be controlled by the processor 111 of the first STA 110, and a related signal It can be transmitted or received through transceiver 113 controlled by processor 111 of the first STA 110.In addition, control information related to the operation of the non-AP or a TX / RX signal from the non-AP can be stored in memory 112 of the first STA 110.

[65] In the specification that follows, a device called STA (transmitter / receiver), a first STA, a second STA, a STA1, a STA2, an AP, a first AP, a second AP, an API, an AP2, a terminal (transmitter / receiver), a device (transmitter / receiver), an apparatus (transmitter / receiver), a network or the like may involve STAs 110 and 120 of Figures 1A and 1B. For example, a device referred to as, without a specific reference number, the STA (transmitter / receiver), the first STA, the second STA, STA1, STA2, the AP, the first AP, the second AP, the API, AP2, the terminal (transmitter / receiver), the device (transmitter / receiver), the apparatus (transmitter / receiver), the network, or similar, may involve STAs 110 and 120 of Figures 1A and 1B. For example, in the following example, an operation in which several STAs transmit / receive a signal (e.g.,a PPDU) can be carried out in transceivers 113 and 123 of Figures 1A and 1B. Furthermore, in the following example, an operation in which several STAs generate a TX / RX signal or carry out data processing and calculation in advance for the TX / RX signal can be carried out in processors 111 and 121 of Figures 1A and 1B. For example, an example of an operation to generate the TX / RX signal or carry out data processing and calculation in advance may include: 1) an operation to determine / obtain / configure / compute / encode / code bit information from a subfield (SIG, STF, LTF, Data) included in a PPDU; 2) an operation to determine / configure / obtain a time resource or frequency resource (e.g., a subcarrier resource) or similar used for the subfield (SIG, STF, LTF,Data) included in the PPDU; 3) an operation to determine / configure / obtain a specific sequence (e.g., a pilot sequence, an STF / LTF sequence, an additional sequence applied to SIG) or similar used for the subfield (SIG, STF, LTF, Data) included in the PPDU; 4) a power control operation and / or power saving operation applied for the STA; and 5) an operation related to the determination / obtainment / configuration / decoding / encoding or similar of an ACK signal. Furthermore, in the following example, a variety of information used by various STAs q LOzcn / eznz / q / YiAi to determine / obtain / configure / computate / decode / encode a TX / RX signal (e.g., information related to a field / subfield / control field / parameter / power or similar) can be stored in memories 112 and 122 of Figures 1A and 1B.

[66] The aforementioned device / STA in Figure 1A may be modified as shown in Figure IB. STAs 110 and 120 of this specification will be described below based on Figure IB.

[67] For example, the transceivers 113 and 123 illustrated in Figure 1B can perform the same function as the aforementioned transceiver illustrated in Figure 1A. For example, the processing chips 114 and 124 illustrated in Figure 1B can include the processors 111 and 121 and the memories 112 and 122. The processors 111 and 121 and the memories 112 and 122 illustrated in Figure 1B can perform the same function as the aforementioned processors 111 and 121 and the memories 112 and 122 illustrated in Figure 1A.

[68] A mobile terminal, a wireless device, a wireless transmit / receive unit (WTRU), a user equipment (UE), a mobile station (MS), a mobile subscriber unit, a user, a user STA, a network, a base station, a Node-B, an access point (AP), a repeater, a router, a relay, a receiving unit, a transmitting unit, a receiving STA, a transmitting STA, a receiving device, a transmitting device, a receiving apparatus and / or a transmitting apparatus, described below, may involve the STAs 110 and 120 illustrated in Figures 1A and 1B, or may involve the processing chips 114 and 124 illustrated in Figure 1B. That is, a technical feature of the present specification can be carried out on the STAs 110 and 120 illustrated in figures 1A and 1B, or it can be carried out only on the processing chips 114 and 124 illustrated in figure 1B.For example, a technical feature in which the transmitting STA transmits a control signal can be understood as a technical feature in which a control signal generated in the processors 111 and 121 illustrated in Figures 1A and 1B is transmitted through the transceivers 113 and 123 illustrated in Figures 1A and 1B. Alternatively, the technical feature in which the transmitting STA transmits the control signal can be understood as a technical feature in which the control signal to be transferred to the transceivers 113 and 123 is generated in the processing chips 114 and 124 illustrated in Figure 1B.

[69] For example, a technical feature in which the receiving STA receives the control signal can be understood as a technical feature in which the control signal q LOzcn / eznz / q / YiAi is received by means of the transceivers 113 and 123 illustrated in Figure 1A. Alternatively, the technical feature in which the receiving STA receives the control signal can be understood as the technical feature in which the control signal received in the transceivers 113 and 123 illustrated in Figure 1A is obtained by the processors 111 and 121 illustrated in Figure 1A. Alternatively, the technical feature in which the receiving STA receives the control signal can be understood as the technical feature in which the control signal received in the transceivers 113 and 123 illustrated in Figure 1B is obtained by means of the processing chips 114 and 124 illustrated in Figure 1B.

[70] With reference to Figure 1B, software codes 115 and 125 can be included in memories 112 and 122. Software codes 115 and 126 can include instructions for controlling an operation of processors 111 and 121. Software codes 115 and 125 can be included as various programming languages.

[71] The processors 111 and 121 or the processing chips 114 and 124 of Figures 1A and 1B may include an application-specific integrated circuit (ASIC), other chipsets, a logic circuit, and / or a data processing device. The processor may be an application processor (AP). For example, the processors 111 and 121 or the processing chips 114 and 124 of Figures 1A and 1B may include at least a digital signal processor (DSP), a central processing unit (CPU), a graphics processing unit (GPU), and a modulator and demodulator (modem).For example, the 111 and 121 processors or the 114 and 124 processing chips in Figures 1A and 1B may be the SNAPDRAGON™ series of processors manufactured by Qualcomm®, the EXYNOS™ series of processors manufactured by Samsung®, the A series of processors manufactured by Apple®, the HELIO™ series of processors manufactured by MediaTeb®, the ATOM™ series of processors manufactured by Intel®, or processors improved from these processors.

[72] In this specification, an uplink may involve a link for communication from a non-AP STA to an SP STA, and an uplink PPDU / packet / signal or similar may be transmitted over the uplink. Furthermore, in this specification, a downlink may involve a link for communication from the AP STA to the non-AP STA, and a downlink PPDU / packet / signal or similar may be transmitted over the downlink.

[73] Figure 2 is a conceptual view illustrating the structure of a wireless local area network (WLAN).

[74] The top of Figure 2 illustrates the q LOzcn / eznz / q / YiAi structure of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 Basic Services Infrastructure (BSS) set.

[75] Referring to the top of Figure 2, the wireless LAN system may include one or more 200 and 205 infrastructure BSSs (hereafter referred to as BSSs). The 200 and 205 BSSs, as a set of an AP and a STA, such as an Access Point (AP) 225 and a Station (STA1) 200-1, that successfully synchronize to communicate with each other, are not region-specific concepts. The 205 BSS may include one or more 205-1 and 205-2 STAs that can join an AP 230.

[76] The BSS may include at least one STA, APs that provide a distribution service, and a 210 distribution system (DS) that connects multiple APs.

[77] The 210 distribution system can implement an extended service set (ESS) 240 by connecting the various 200 and 205 BSSs. ESS 24 0 can be used as a term to denote a configured network that connects one or more 225 or 230 APs through the 210 distribution system. The AP included in an ESS 24 0 can have the same service set identification (SSID).

[78] A 220 portal can serve as a bridge connecting the wireless LAN (IEEE 802.11) and another network (e.g., 802.X). q LOzcn / eznz / q / YiAi

[79] In the BSS illustrated at the top of Figure 2, a network can be implemented between APs 225 and 230 and a network between APs 225 and 230 and STAs 200-1, 205-1, and 205-2. However, the network is configured even between the STAs without APs 225 and 230 to carry out communication. A network in which communication is carried out by configuring the network even between the STAs without APs 225 and 230 is defined as an Ad-Hoc network or an Independent Basic Service Set (IBSS).

[80] A lower portion of Figure 2 illustrates a conceptual view illustrating the IBSS.

[81] Referring to the inner portion of Figure 2, the IBSS is a BSS operating in Ad-Hoc mode. Since the IBSS does not include the access point (AP), there is no centralized management entity performing a central management function. That is, in the IBSS, STAs 250-1, 250-2, 250-3, 255-4, and 255-5 are managed in a distributed manner. In the IBSS, all STAs 250-1, 250-2, 250-3, 255-4, and 255-5 can be comprised of mobile STAs and are not permitted to access the DS to form an autonomous network.

[82] Figure 3 illustrates a general link-establishment process.

[83] In S310, an STA can perform a network discovery operation. The network discovery operation can include a scanning operation by the STA. That is, to access a network, the STA needs to discover a participating network. The STA needs to identify a compatible network before participating in a wireless network, and the process of identifying a network present in a particular area is called scanning. Scanning methods include active scanning, active scanning, and passive scanning.

[84] Figure 3 illustrates a network discovery operation that includes an active scanning process. In active scanning, a STA performing the scan transmits a probe request frame and waits for a response to the probe request frame to identify which AP is present as it moves through the channels. A responder transmits a probe response frame in reply to the probe request frame to the STA that transmitted the probe request frame. Here, the responder can be an STA transmitting the last beacon frame on a BSS of a channel being scanned. On the BSS, since an AP transmits a beacon frame, the AP is the responder. On an IBSS, since the STAs on the IBSS transmit a beacon frame in turns, the responder is not fixed.For example, when the STA transmits a probe request frame over channel 1 and receives a probe response frame over channel 1, the STA can store BSS-related information included in the received probe response frame, can move on to the next channel (e.g., channel 2), and can perform a scan (e.g., transmits a probe request and receives a probe response over channel 2) by the same method.

[85] Although not shown in Figure 3, scanning can be carried out using a positive scanning method. In passive scanning, a STA performing the scan `q LOzcn / eznz / q / YiAi` can wait for a beacon frame while it scans for channels. A beacon frame is one of the management frames in IEEE 802.11 and is transmitted periodically to indicate the presence of a wireless network and allow the STA to scan for and join the wireless network. In a BSS, an AP periodically transmits a beacon frame. In an IBSS, the STAs in the IBSS take turns transmitting a beacon frame. Upon receiving the beacon frame, the scanning STA stores information related to a BSS contained within the beacon frame and records the beacon frame information on each channel as it moves to another channel.The STA that has received the beacon frame can store BSS-related information included in the received beacon frame, can move on to the next channel, and can perform a scan on the next channel using the same method.

[86] After discovering the network, the STA can perform an authentication process in S320. This authentication process can be referred to as a first authentication process to clearly distinguish it from the subsequent security configuration operation in S340. The authentication process in S32C can include a process in which the STA transmits an authentication request frame to the AP, and the AP transmits an authentication response frame back to the STA. The authentication frames used for an authentication request / response are management frames.

[87] Authentication frames may include information related to an authentication algorithm number, an authentication transaction sequence number, a status code, a challenge text, a robust security network (RSN), and a finite cyclic group.

[88] The STA can transmit the authentication request frame to the AP. The AP can determine whether to allow the STA's authentication based on the information included in the received authentication request frame. The AP can provide the result of the authentication processing to the STA through the authentication response frame.

[89] When the STA is successfully authenticated, the STA can perform an association process on S330. The association process q LOzcn / eznz / q / YiAi includes a process in which the STA transmits an association request frame to the AP, and the AP transmits an association response frame to the STA in response. The association request frame can include, for example, information related to various capabilities, a beacon listen interval, a service set identifier (SSID), a compatible rate, a compatible channel, RSN, a mobility domain, a compatible operational class, Indication Map (TIM) broadcast request traffic, and an interoperability service capability.The association response frame may include, for example, information related to various capabilities, a status code, an association ID (AID), an supported rate, an enhanced distributed channel access (EDCA) parameter set, a received channel power indicator (RCPI), a received signal-to-noise indicator (RSNI), a mobility domain, a waiting time interval (association return time), an overlaid BSS scan parameter, a TIM transmission response, and a QoS map.

[90] In S340, the STA can perform a security configuration process. The security configuration process in S340 can include a private key configuration process via a four-way handshake, for example, via an Extensible Authentication over LAN (EAPOL) protocol frame.

[91] Figure 4 illustrates an example of a PPDU used in an IEEE standard.

[92] As illustrated, several types of Protocol PHY Data Units (PPDUs) are used in the IEEE a / g / n / ac standards. Specifically, an LTF and an STF include a training signal, a SIG-A and a SIG-B include control information for a receiving STA, and a data field includes user data corresponding to a PSDU (MAC PDU / aggregated MAC PDU).

[93] Figure 4 also includes an example of an HE PPDU according to IEEE 802.11ax. The HE PPDU according to Figure 4 is an illustrative PPDU for multiple users. An HE-SIG-B can only be included in a PPDU for multiple users, and an HE-SIG-B can be omitted from a PPDU for a single user.

[94] As illustrated in Figure 4, the multi-user HE-PPDU (MU) can include a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (L-SIG), a high-efficiency signal A (HE-SIG A), a high-efficiency signal B (HE-SIG B), a high-efficiency short training field (HE-STF), a high-efficiency long training field (HE-LTF), a data field (alternatively, a MAC payload), and a payload extension (PE) field. The respective LOzcn / eznz / q / YiAi fields can be transmitted for the illustrated time periods (i.e., 4 or 8 ps).

[95] The following describes a resource unit (RU) used for an EPDU. An RU can include a plurality of subcarriers (or tones). An RU can be used to transmit a signal to a plurality of STAs in accordance with OFDMA. In addition, an RU can also be defined to transmit a signal to a single STA. An RU can be used for an STF, an LTF, a data field, or similar.

[96] Figure 5 illustrates a design of resource units (RUs) used in a 20 MHr band.

[97] As illustrated in Figure 5, resource units (RUs) corresponding to different numbers of tones (i.e., subcarriers) can be used to form some fields of an HE-PPDU. For example, resources can be allocated in illustrated RUs for an HE-STF, an HE-LTF, and a data field.

[98] As illustrated in the upper part of Figure 5, a 26-unit (i.e., a unit corresponding to 26 tones) can be provided. Six tones can be used for a guard band in the leftmost band of the 20 MHz band, and five tones for a guard band in the rightmost band of the 20 MHz band. In addition, seven DC tones can be inserted into a center band, i.e., a DC band, and a 26-unit corresponding to 13 tones can be provided on each of the left and right sides of the DC band. A 26-unit, a 52-unit, and a 106-unit can be assigned to other bands. Each unit can be assigned to a receiving STA, i.e., a user.

[99] The design of the RUs in Figure 5 can be used not only for multiple Syrian users (MU) but also for a single user (SU), in which case a 242 unit can be used and three DC tones can be inserted as illustrated at the bottom of Figure 5.

[100] Although Figure 5 proposes RUs of various sizes, namely a 26-RU, a 52-RU, a 106-RU, and a 242-RU, the specific sizes of RUs can be extended or increased. Therefore, the present modality is not limited to the specific size of each RU (i.e., the corresponding number of tones).

[101] Figure 6 illustrates a design of RUs used in a 40 MHz band.

[102] Similar to Figure 5, where RUs of various sizes are used, an example in Figure 6 might use a 26-RU, a 52-RU, a 106-RU, a 242-RU, a 484-RU, and similar sizes. Furthermore, five DC tones can be inserted at a center frequency, 12 tones can be used for a protection band in the leftmost band of the 40 MHz band, and 11 tones can be used for a protection band in the rightmost band of the 40 MHz band.

[103] As illustrated in Figure 6, when the RU design is used for a single user, a 484RU can be used. The specific number of RUs can be changed similarly to Figure 5.

[104] The figure illustrates a design of RUs used in an 80 MHz band.

[105] Similar to Figure 5 and Figure 6, where RUs of various sizes are used, a 26-RU, a 52-RU, a 106-RU, a 242-RU, a 484-RU, a 996-RU, and the like can be used in an example in Figure 7. In addition, seven DC tones can be inserted at the center frequency, 12 tones can be used for a guard band in the leftmost band of the 80 MHz band, and 11 tones can be used for a guard band in the rightmost band of the 80 MHz band. Furthermore, a 26-RU corresponding to 13 tones can be used on each of the left and right sides of the DC band.

[106] As illustrated in Figure / , when the RU arrangement is used for a single user, a 996-RU may be used, in which case five DC tones may be inserted.

[107] The RU described in this specification can be used in uplink (UL) and downlink (DL) communication. For example, when UL-MU communication is initiated by a wake-up frame, a transmitting STA (e.g., an AP) can assign a first RU (e.g., 26 / 52 / 106 / 242-RU, etc.) to a first STA via the wake-up frame and can assign a second RU (e.g., 26 / 52 / 106 / 242-RU, etc.) to a second STA. The first STA can then transmit a first wake-up-based PPDU based on the first RU, and the second STA can transmit a second wake-up-based PPDU based on the second RU. The first and second wake-up-based PPDUs are transmitted to the AP in the same time period (or overlapping).

[108] For example, when a MU DL PPDU is configured, the transmitting STA (e.g., AP) can assign the first RU (e.g., 26 / 52 / 106 / 242-RU, etc.) to the first STA, and can assign the second RU (e.g., 26 / 52 / 106 / 242-RU, etc.) to the second STA. That is, the transmitting STA (e.g., AP) can transmit HE-STF, HE-LTF, and Data fields for the first STA through the first RU in a MU PPDU, and can transmit HE-STF, HE-LTF, and Data fields for the second STA through the second RU.

[109] Information related to a RU design can be signaled through HE-SIG-B.

[110] Figure 8 illustrates a structure of an HE- q field LOzcn / eznz / q / YiAi SIG-3.

[111] As illustrated, an HE-SIG-B 810 field includes a common field 820 and a user-specific field 830. The common field 820 may include information commonly applied to all users (i.e., user STAs) receiving SIG-3. The user-specific field 830 may be referred to as a user-specific control field. When SIG-B is transferred to a plurality of users, the user-specific field 830 may apply to only any one of the plurality of users.

[112] As illustrated in Figure 8, the common field 820 and the user-specific field 830 can be coded separately.

[113] Common field 820 may include N+8 bit RU allocation information. For example, RU allocation information may include information related to the location of an RU. For example, when using a 20 MHz channel as shown in Figure 5, the RU allocation information may include information related to a specific frequency band in which a specific RU is organized (26-RU / 52-RU / 106-RU).

[114] An example of a case in which the RU allocation information consists of 8 bits is the following. q LOzcn / eznz / q / YiAi q LOzcn / eznz / q / YiAi

[116] As shown in the example in Figure 5, up to nine 26-RUs can be assigned to the 20 MHz channel. When the RU assignment information for common field 820 is set to 00000000 as shown in Table 1, all nine 26-RUs can be assigned to a corresponding channel (i.e., 20 MHz). Furthermore, when the RU assignment information for common field 820 is set to 00000001 as shown in Table 1, seven 26-RUs and one 52-RU are arranged into a corresponding channel. That is, in the example in Figure 5, the 52-RU can be assigned to the rightmost side and the seven 26-RUs can be assigned to the left side.

[117] The example in Table 1 shows only some of the RU locations capable of displaying RU allocation information. q LOzcn / eznz / q / YiAi

[118] For example, RU allocation information may include an example of Table 2 below.

[119] Board 8-bit indices (ΙΓ B6 BS B4 B3 B2 B1 BU) Π1 a? -3 «4 «5 aX a'> Number of entries 11 1 1 Μ Η 1-, .\ , lih. 2*. 2<' 2<> xo ] i η i ] ·. , |ih. Λ. “ Λ X

[120] 01000y2yly0 relates to an example where one 10⁶-RU is assigned to the left end of a 20 MHz channel and five 26-RUs to the right end. In this case, a plurality of STAs (e.g., user STAs) can be assigned to the 10⁶-RU, based on a MU-MIMO scheme. Specifically, up to eight STAs (e.g., user STAs) can be assigned to the 10⁶-RU, and the number of STAs (e.g., user STAs) assigned to the 10⁶-RU is determined by the 3-bit information (y2yly0). For example, when the 3-bit information (y2yly0) is set to N, the number of STAs (e.g., user STAs) assigned to the 10⁶-RU according to the MU-MIMO scheme can be N+1.

[121] In general, a plurality of different STAs (e.g., user STAs) can be assigned to a plurality of RUs. However, the plurality of STAs (e.g., user STAs) can be assigned to one or more RUs that have at least a specific size (e.g., 106 subcarriers), based on the MU-MIMO scheme.

[122] As shown in Figure 8, the user-specific field 830 can include a plurality of user fields. As described above, the number of STAs (e.g., user STAs) allocated to a specific channel can be determined based on the RU allocation information in common field 820. For example, when the RU allocation information in common field 820 is 00000000, one user STA can be allocated to each of the nine 26-RUs (e.g., nine user STAs can be allocated). That is, up to nine user STAs can be allocated to a specific channel through an OFDMA scheme. In other words, up to nine user STAs can be allocated to a specific channel through a non-MU-MIMO scheme.

[123] For example, when the RU assignment is set to 01000y2yly0, a plurality of STAs can be assigned to the 106-RU located at the far left via the MU-MIMO scheme, and five user STAs can be assigned to five 26-RUs located to their right via the non-MU MIMO scheme. This case is specified by an example in Figure 9.

[124] Figure 9 illustrates an example in which a plurality of user STAs are assigned to the same RU aq LOzcn / eznz / q / YiAi through a MU-MIMO scheme.

[125] For example, when the RU assignment is set to 01000010 as shown in Figure 9, one 106-RU can be assigned to the far left of a specific channel and five 26-RUs to the right side of the same channel. In addition, three user STAs can be assigned to the 106-RU via the MU-MIMO scheme. As a result, since eight user STAs are assigned, the user-specific field 830 of HE-SIG-B can include eight user fields.

[126] The eight user fields can be expressed in the order shown in Figure 9. In addition, as shown in Figure 8, two user fields can be implemented with one user block field.

[127] The user fields shown in Figure 8 and Figure 9 can be configured based on two formats. That is, a user field related to a MUMIMO scheme can be configured in one format, and a user field related to a non-MIMO scheme can be configured in a second format. Referring to the example in Figure 9, a user field from 1 to a user field from 3 can be based on the first format, and a user field from 4 to a user field from 8 can be based on the second format. The first or second format can include bit information of the same length (e.g., 21 q LOzcn / eznz / q / YiAi).

[128] Each user field can have the same size (for example, 21 bits). For example, the user field of the first format (the first of the MU-MIMO scheme) can be configured as follows.

[129] For example, a first bit (i.e., B0-B10) in the user field (i.e., 21 bits) may include identification information (e.g., STA-ID, partial AID, etc.) of a user STA to which the corresponding user field is assigned. In addition, a second bit (i.e., B11-B14) in the user field (i.e., 21 bits) may include information related to a spatial configuration.

[130] In addition, a third bit (i.e., B15-18) in the user field (i.e., 21 bits) may include modulation and coding scheme (MCS) information. The MCS information may be applied to a data field in a PPDU that includes the corresponding B-SIG.

[131] An MCS, MCS information, an MCS index, an MCS field, or the like used in this specification may be indicated by an index value. For example, MCS information may be indicated by an index from 0 to 11. MCS information may include information related to a constellation modulation type (for example, BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM, etc.) and information related to a coding rate (e.g., 1 / 2, 2 / 3, 3 / 4, 5 / 6, etc.). Information related to a channel coding type (for example, LCC or LDPC) may be excluded from the MCS information.

[132] In addition, a fourth bit (i.e., B19) in the user field (i.e., 21 bits) may be a reserved field.

[133] Furthermore, a fifth bit (i.e., B20) in the user field (i.e., 21 bits) may include information related to an encoding type (e.g., BCC or LDPC). That is, the fifth bit (i.e., B20) may include information related to a type (e.g., BCC or LDPC) of channel encoding applied to the data field in the q LOzcn / eznz / q / YiAi PPDU that includes the corresponding SIG-B.

[134] The example mentioned above relates to the user field of the first format (the MU-MIMO schema format). An example of the user field of the second format (the non-MU-MIMO schema format) is as follows.

[135] A first bit (for example, B0-B10) in the user field of the second format may include identification information for a user STA. In addition, a second bit (for example, B11-B13) in the user field of the second format may include information related to the number of spatial flows applied to a corresponding RU. Furthermore, a third bit (for example, B14) in the user field of the second format may include information related to whether a beamforming address matrix is ​​applied. A fourth bit (for example, B15-B18) in the user field of the second format may include modulation and coding scheme (MCS) information. Furthermore, a fifth bit (for example, B19) in the user field of the second format may include information related to whether dual carrier modulation (DCM) is applied.Additionally, a sixth bit (i.e., B20) in the user field of the second format may include information related to an encoding type (e.g., BCC or LDPC).

[136] A PPDU transmitted / received on an STA of this specification will now be described.

[137] Figure 10 illustrates an example of a PPDU used in this specification.

[138] The PPDU in Figure 10 may be referred to by various terms, such as EHT PPDU, PPDU TX, PPDU RX, Type 1 PPDU, or Type N PPDU, or similar terms. For example, in this specification, the PPDU or the EHT PPDU may be referred to by various terms, such as PPDU TX, PPDU RX, Type 1 PPDU, Type N PPDU, or similar terms. Furthermore, the EHT PPDU may be used in an EHT system and / or in a new, improved WLAN system derived from the EHT system. q LOzcn / eznz / q / YiAi

[139] The PPDU in Figure 10 can represent all or part of a PPDU type used in the EHT system. For example, the example in Figure 10 can be used for both a single-user (SU) mode and a multi-user (MU) mode. In other words, the PPDU in the figure can be a PPDU for a receiving STA or for a plurality of receiving STAs. When the PPDU in Figure 10 is used for a trigger-based (TB) mode, the EHT-SIG in Figure 10 can be omitted. In other words, an STA that has received a trigger frame for (UL-MU) can transmit the PPDU in the SIG in the example in Figure 10.

[140] In Figure 10, an L-STF can be called a preamble, preamble, uplink-MU that omits the EHTa. An EHT-LTF can be physical, and can be generated / transmitted / received / obtained and / decoded in a physical layer.

[141] The spacing between subcarriers of the LSTF, L-LTF, L-SIG, RL-S1G, U-SIG, and EHT-SIG fields in Figure 10 can be determined to be 312.5 kHz, and the spacing between subcarriers of the EHT-STF, EHT-LTF, and Data fields can be determined to be 78.125 kHz. That is, a pitch index (or subcarrier index) of the L-STF, L-LTF, L-SIG, RL-SIG, U-SIG and EHT-SIG can be expressed in units of 312.5 kHz, and a pitch index (or subcarrier index) of the EHT-STF, EHT-LTF and Data fields can be expressed in units of / 8.125 kHr.

[142] In the PPDU of Figure 10, the L-LTE and L-STF can be the same as in conventional fields.

[143] The L-SIC field in Figure 10 can include, for example, 24-bit bit information. For example, the 24-bit information can include a 4-bit rate field, a 1-bit reserved bit, a 12-bit length field, a 1-bit parity bit, and a 6-bit tail bit. For example, the 12-bit length field can include information related to the length or duration of a PPDU. For example, the 12-bit length field can be determined based on the PPDU type. For example, when the PPDU is a non-HT, HT, VHT, or EHT PPDU, the value of the length field can be determined as a multiple of 3. For example, when the PPDU is an HE PPDU, the value of the length field can be determined as a multiple of 3+ or a multiple of 3+2.In other words, for PPDI non-HT, HT, VHT or EHT PPDU, the length field value can be determined as a multiple of 3, and for PPDU HE, the length field value can be determined as a multiple of 3+ or a multiple of 3+2.

[144] For example, the transmitting STA can apply BCC encoding based on a coding rate of 1 / 2 to the 24-bit information in the L-SIG field. Subsequently, the transmitting STA can obtain a 48-bit BCC encoding bit q LOzcn / eznz / q / YiAi. BPSK modulation can be applied to the 48-bit encoding bit, thus generating 48 BPSK symbols. The transmitting STA can assign the 48 BPSK symbols to positions except for one pilot subcarrier {subcarrier index -21, -7, +7, +21} and one DC subcarrier {subcarrier index 0}. As a result, the 48 BPSK symbols can be assigned to subcarrier indices -26 to -22, 20 to -8, -6 to -1, +1 to +6, +8 to +20, and +22 to +26. The transmitting STA can additionally map a signal of {-1, -1, -1, 1} to a subcarrier index {-28, -27, +27, +28}. The aforementioned signal can be used for channel estimation in a frequency domain corresponding to {-28, 2 / , +2 / , +28}.

[145] The transmitting STA can generate an RL-SIG in the same way as the L-SIG. BPSK modulation can be applied to the RL-SIG. The receiving STA can know that the RX PPDU is the HE PPDU or the EHT PPDU, depending on the presence of the RL-SIG.

[146] A universal GIS (U-GIS) may be inserted after the RL-GIS in Figure 10. The U-GIS may be referred to in various terms, such as a first GIS field, a first GIS, a first GIS type, a control signal, a control signal field, a first control signal (type), or similar.

[147] The U-SIG may include N-bit information and may include information to identify a type of EHT q LOzcn / eznz / q / YiAi PPDU. For example, the U-SIG can be configured based on two symbols (e.g., two contiguous OFDM symbols). Each symbol (e.g., OFDM symbol) for the U-SIG can have a duration of 4 pis. Each U-SIG symbol can be used to transmit the information of 26 oits. For example, each U-SIG symbol can be transmitted / received based on 52 data tomes and 4 pilot tomes.

[148] Through the U-SIG (or U-SIG field), for example, one bit of information (e.g., 52 uncoded bits) can be transmitted. A first U-SIG symbol can transmit the first bit X information (e.g., 26 uncoded bits) of the bit A information, and a second U-SIG symbol can transmit the remaining bit Y information (e.g., 26 uncoded bits) of the bit A information. For example, the transmitting STA can obtain 26 uncoded bits included in each U-SIG symbol. The transmitting STA can perform convolutional coding (i.e., BCC coding) based on a rate of R = 1 / 2 to generate 52 coded bits and can perform interleaving on the 52 coded bits. The transmitting STA can perform BPSK modulation on the interleaved 52 coded bits to generate 52 BPSK symbols to be assigned to each USIG symbol.A U-SIG symbol can be transmitted based on 65 tones (subcarriers) from a subcarrier index -28 aq LOzcn / eznz / q / YiAi to a subcarrier index +28, except for a DC index 0. The 52 BPSK symbols generated by the transmitting STA can be transmitted based on the remaining tones (subcarriers) except for the pilot tones, i.e., the -21, -7, +7, +21 tones.

[149] For example, the information in bit A (e.g., 52 unencoded bits) generated by the U-SIG may include a CRC field (e.g., a field with a length of 4 bits) and a tail field (e.g., a field with a length of 6 bits). The CRC field and the tail field may be transmitted through the second symbol of the U-SIG. The CRC field may be generated based on the 26 bits allocated to the first symbol of the U-SIG and the remaining 16 bits, excluding the CRC / tail fields, in the second symbol, and may be generated based on the conventional CRC calculation algorithm. Furthermore, the tail field may be used to terminate the lattice of a convolutional decoder and may be set, for example, to 000000.

[150] The information in bit A (e.g., 52 unencoded bits) transmitted by the U-SIG (or the U-SIG field) can be divided into version-independent bits and version-dependent bits. For example, version-independent bits can be of a fixed or variable size. For example, version-independent bits can be assigned only to the first symbol of the U-SIG, or version-independent bits can be assigned to both the first and second symbols of the U-SIG. For example, version-independent bits and version-dependent bits can be referred to in various ways, such as a first control bit, a second control bit, or similar terms.

[151] For example, the U-SIG version-independent bits may include a 3-bit PHY version identifier. For example, the 3-bit PHY version identifier may contain information related to a PHY version of a TX / RX PPDU. For example, a first value of the 3-bit PHY version identifier may indicate that the TX / RX PPDU is an EHT PPDU. In other words, when the transmitting STA transmits the EHT PPDU, the 3-bit PHY version identifier may be set to a first value. In other words, the receiving STA may determine that the RX PPDU is the EHT PPDU based on the PHY version identifier having a first value.

[152] For example, the U-SIG version-independent bits may include a 1-bit UL / DL indicator field. A first value of the 1-bit UL / DL indicator field relates to UL communication, and a second value of the UL / DL indicator field relates to DL communication.

[153] For example, the U-SIG version-independent bits may include information related to a TXOP length and information related to a BSS color identification.

[154] For example, when the EHT PPDU is divided into several types (for example, several types, such as an EHT PPDU related to an SU mode, an EHT PPDU related to a MU mode, an EHT PPDU related to a TB mode, an EHT PPDU related to extended range transmission, or similar), information related to the type of EHT PPDU may be included in the version-dependent bits of the USIG.

[155] For example, the U-SIG may include: 1) a bandwidth field that includes information related to a bandwidth; 2) a field that includes information related to an MCS scheme applied to EHT-SIG; 3) an indication field that includes information about whether a dual subcarrier modulation (DCM) scheme is applied to EHT-SIG; 4) a field that includes information related to the symbol number used for EHT-SIG; 5) a field that includes information about whether the EHT-SIG is generated in a full band; 6) a field that includes information related to an EHT-LTF / STF type; and 7) information related to a field that indicates an EHT-LTF length and a CP length.

[156] Preamble punching can be applied to the PPDU in Figure 10. Preamble punching implies that the punch is applied to a portion (e.g., a 20 MHz secondary band) of the entire band. For example, when transmitting an 80 MHz PPDU, an STA can apply the punch to the 20 MHz secondary band outside the 80 MHz band and can transmit a PPDU only across a 20 MHz primary band and a 40 MHz secondary band.

[157] For example, a preamble perforation pattern can be pre-configured. For example, when a first perforation pattern is applied, the perforation can be applied only to the 20 MHz sub-band within the 80 MHz band. For example, when a second perforation pattern is applied, the perforation can be applied only to either of the two 20 MHz sub-bands included in the 40 MHz sub-band within the 80 MHz band. For example, when a third perforation pattern is applied, the perforation can be applied only to the 20 MHz sub-band included in the 80 MHz primary band within the 160 MHz band (or 80+80 MHz band). For example, when a fourth perforation is applied, the perforation can be applied to at least one 20 MHz channel that does not belong to a 40 MHz primary band in the presence of the 40 MHz primary band included in the 80 MHz band within the 160 MHz band (or 80+80 MHz band).

[158] Information related to preamble drilling applied to the PPDU may be included in U-SIG and / or LOzcn / eznz / q / YiAi EHT-SIG. For example, a first U-SIG field may include information related to a contiguous bandwidth, and a second U-SIG field may include information related to preamble perforation applied to the PPDU.

[159] For example, the U-SIG and EHT-SIG can include information related to preamble punching, as described in the following method. When a PPDU bandwidth exceeds 80 MHz, the U-SIG can be configured individually in 80 MHz units. For example, when the PPDU bandwidth is 160 MHz, the PPDU can include a first U-SIG for a first 80 MHz band and a second U-SIG for a second 80 MHz bank. In this case, a first field of the first U-SIG can include information related to a 160 MHz bandwidth, and a second field of the first U-SIG can include information related to a preamble punch (i.e., information related to a pattern preamble punch) applied to the first 80 MHz band.Furthermore, a first field of the second U-SIG may include information related to a 160 MHz bandwidth, and a second field of the second U-SIG may include information related to a preamble punch (i.e., information related to a preamble punch pattern) applied to the second 80 MHz band. Meanwhile, a q LOzcn / eznz / q / YiAi. An EHT-SIG adjacent to the first U-SIG may include information related to a preamble punch applied to the second 80 MHz band (i.e., information related to a preamble punch pattern), and an EHT-SIG adjacent to the second U-SIG may include information related to a preamble punch (i.e., information related to a preamble punch pattern) applied to the first 80 MHz band.

[160] E) Additionally or as an alternative, U-SIG and EHT-SIG may include information related to preamble punching, based on the following method. U-SIG may include information related to a preamble punch (i.e., information related to a preamble punching pattern) for all bands. That is, EHT-SIG may not include information related to preamble punching, and only U-SIG may include information related to preamble punching (i.e., information related to the preamble punching pattern).

[161] The U-SIG can be configured in 20 MHz units. For example, when configuring an 80 MHz PPDU, the U-SIG can be duplicated. That is, four identical U-SIGs can be included in the 80 MHz PPDU. PPDUs that exceed a bandwidth of 80 MHz can include different U-SIGs.

[162] q LOzcn / eznz / q / YiAi The EHT-SIG in Figure 10 may include control information for the receiving STA. The EHT-SIG may be transmitted using at least one symbol, and a symbol may have a length of 4 ps. Information regarding the number of symbols used for the EHT-SIG may be included in the U-SIG.

[163] The EHT-SIG may include a technical feature of the HE-SIG-B described with reference to Figure 8 and Figure 9. For example, the EHT-SIG may include a common field and a user-specific field as in the example in Figure 8. The common field of the EHT-SIG may be omitted and the number of user-specific fields may be determined based on the number of users.

[164] As in the example in Figure 8, the common EHT-SIG field and the EHT-SIG user-specific field can be coded separately. A user block field included within the user-specific field can contain information for two users, but a final user block field included within the user-specific field can contain information for only one user. That is, an EHT-SIG user block field can contain up to two user fields. As in the example in Figure 9, each user field can be related to MU-MIMO assignment, or it can be related to non-MU-MIMO assignment.

[165] As in the example in Figure 8, the common field q LOzcn / eznz / q / YiAi of the EHT-SIG may include a CRC bit and a tail bit. The length of the CRC bit may be determined as 4 bits. The length of the tail bit may be determined as 6 bits and may be set to '000000'.

[166] As in the example in Figure 11, the common field of the EHT-SIG can include RU assignment information. RU assignment information can involve information related to the location of an RU to which a plurality of users (i.e., a plurality of receiving STAs) are assigned. RU assignment information can be configured in 8-bit (or N-bit) units, as in Table 1.

[167] A mode in which the common field of the EHT-SIG is omitted may be admitted. The mode in which the common field of the EHT-SIG is omitted may be called compressed mode. When compressed mode is used, a plurality of users (i.e., a plurality of receiving STAs) may decode the PPDU (e.g., the PPDU data field) on a non-OFDMA basis. That is, the plurality of EHT PPDU users may decode the PPDU (e.g., the PPDU data field) received over the same frequency band. Meanwhile, when uncompressed mode is used, the plurality of EHT PPDU users may decode the PPDU (e.g., the PPDU data field) on an OFDMA basis. That is, the plurality of users of the EHT PPDU can receive the PPDU (for example, the PPDU data field) through different frequency bands.

[168] The EHT-SIG can be configured according to various MCS schemes. As described above, information related to an MCS scheme applied to the EHT-SIG can be included in the U-SIG. The EHT-SIG can be configured based on a DCM scheme. For example, among N data tones (e.g., 52 data tones) allocated for the EHT-SIG, a first modulation scheme can be applied to half of the consecutive tones, and a second modulation scheme can be applied to the remaining half of the consecutive tones. That is, a transmitting STA can use the first modulation scheme to modulate specific control information through a first symbol and assign it to half of the consecutive tones, and it can use the second modulation scheme to modulate the same control information using a second symbol and assign it to the remaining half of the consecutive tones.As described above, information (e.g., a 1-bit field) regarding whether the DCM scheme applies to the EHT-SIG can be included in the U-SIG. An HE-STF from Figure 10 can be used to improve the estimation of automatic gain control in a multiple-input, multiple-output (MIMO) or OFDMA environment. A q LOzcn / eznz / q / YiAi can be used. HE-LTF from Figure 10 to estimate a channel in the MIMO environment or in the OFDMA environment.

[169] Information related to a type of STF and / or LTF (also includes information related to a GI applied to LTF) may be included in a GIS-A field and / or a GIS-3 field or similar in Figure 10.

[170] A PUDU (e.g., EHT-PPDU) of Figure 10 can be configured according to the example in Figure 5 and Figure 6.

[171] For example, an EHT PPDU transmitted in a 20 MHz band, i.e., a 20 MHz EHT PPDU, can be configured based on the RU in Figure 5. That is, the location of an EHT-STF, EHT-LTF RU, and the data fields included in the EHT PPDU can be determined as shown in Figure 5.

[172] An EHT PPDU transmitted in a 40 MHz band, i.e., a 40 MHz EHT PPDU, can be configured based on the RU in Figure 6. That is, the location of an EHT-STF, EHT-LTF RU and the data fields included in the EHT PPDU can be determined as shown in Figure 6.

[173] Since the RU location in Figure 6 corresponds to 40 MHz, a tone plan for 80 MHz can be determined when the pattern in Figure 6 is repeated twice. That is, an 80 MHz EHT PPDU can be transmitted based on a new tone plan in which the RU in Figure 7 is not repeated twice, but rather the RU in Figure 6.

[174] When the pattern in Figure 6 is repeated twice, 23 tones (i.e., 11 guard tones + 12 guard tones) can be configured in a DC region. That is, a tone plan for an 80 MHz EHT PPDU allocated based on OFDMA can have 23 DC tones. In contrast, an 80 MHz EHT PPDU allocated based on OFDMA (i.e., a non-OFDMA full-bandwidth 80 MHz PPDU) can be configured based on a 996-RU and can include 5 DC tones, 12 left guard tones, and 11 right guard tones.

[175] A tone plan for 160 / 240 / 320 MHz can be configured so that the pattern in Figure 6 is repeated several times.

[176] The PPDU in Figure 10 can be determined (oq LOzcn / eznz / q / YiAi identi licarse) as an EHT PPDU according to the following method.

[177] A receiving STA can determine a type of RX PPDU as an EHT PPDU, based on the following aspect. For example, the RX PPDU can be determined as the EHT PPDU: 1) when a first symbol after an L-LTF signal of the RX PPDU is a BPSK symbol; 2) when an RL-SIG is detected in which the L-SIG of the RX PPDU is repeated; and 3) when the result of applying modulo 3 to a field value of length L-SIG of the RX PPDU is detected as 0. When the RX PPDU is determined as the EHT PPDU, the receiving STA can detect a type of EHT PPDU (for example, a SU / MU / trigger-based / extended-range type), according to the bit information included in a symbol after the RL-SIG in Figure 10.In other words, the receiving STA can determine the RX PPDU as the EHT PPDU, based on: 1) a first symbol after an L-LTF signal, which is a BPSK symbol; 2) RD-SIG contiguous to the L-SIG field and identical to D-SIG; 3) L-SIG which includes a length field where a result of applying modulo 3 is set to 0; and 4) a 3-bit PHY version identifier of the aforementioned U-SIG (e.g., a PHY version identifier having a first value).

[178] For example, the receiving STA can determine the type of RX PPDU as EHT PPDU, based on the following aspect. For example, the RX PPDU can be determined as HE PPDU: 1) when a first symbol after an L-LTF signal is a BPSK symbol; 2) when RL-SIG is detected in which L-SIG is repeated; and 3) when a result of applying modulo 3 to a value of a length field of the L-SIG is detected as 1 or 2.

[179] For example, the receiving STA can determine the type of RX PPDU as non-HT, HT, or VHT, based on the following. For example, the RX PPDU can be determined as non-HT, HT, or VHT: 1) when the first symbol after an L-LTF signal is a BPSK symbol; and 2) when no RL-SIG is detected in which LSIG is repeated. Furthermore, even if the receiving STA detects that RL-SIG is repeated, when the result of applying modulo 3 to the L-SIG length value is detected as 0, the RX PPDU can be determined as non-HT, HT, or VHT.

[180] In the following example, a signal represented as a (TX / RX / UL / DL) signal, a (TX / RX / UL / DL) frame, a (TX / RX / UL / DL) packet, a (TX / RX / UL / DL) data unit, (TX / RX / UL / DL) data, or the like may be a transmitted / received signal based on the PPDU in Figure 10. The PPDU in Figure 10 may be used to transmit / receive frames of various types. For example, the PPDU in Figure 10 may be used for a control frame. An example of a control frame may include a Request to Send (RTS), a Control to Send (CTS), a Power Saving Poll (PS-poll), BlockACKReq, BlockAck, a Null Data Packet (NDP) advertisement, and a Wake-up Frame. For example, the PPDU in Figure 10 can be used for a management frame.An example of a management frame might include a beacon frame, a re-association request frame, a re-association response frame, a probe request frame, and a probe response frame. For example, the PPDU in Figure 10 can be used to simultaneously transmit at least two or more control frames, the management frame, and the data frame.

[181] Figure 11 illustrates an example of a modified transmitting and / or receiving device of this specification.

[182] Each device / STA in Figures 1A and 1B may be modified as shown in Figure 11. A transceiver 630 of Figure 11 may be identical to transceivers 113 and 123 of Figure 1. The transceiver 630 of Figure 11 may include a receiver and a transmitter.

[183] ​​A processor 610 of Figure 11 may be identical to processors 111 and 121 of Figure 1. Alternatively, the processor 610 of Figure 11 may be identical to processing chips 114 and 124 of Figure 1.

[184] A memory 620 of Figure 11 may be identical to memories 112 and 122 of Figure 1. Alternatively, memory 620 of Figure 11 may be a separate external memory different from memories 112 and 122 of Figure 1.

[185] With reference to Figure 11, a power management module 611 manages power for the processor 610 and / or the transceiver 630. A battery 612 supplies power to the power management module 611. A display 613 shows a result processed by the processor 610. A keypad 614 receives inputs for use by the processor 610. The keypad 614 can be displayed on the display 613. A SIM card 615 can be an integrated circuit used to securely store an International Mobile Subscriber Identity (IMSI) and its corresponding key, which are used to identify and authenticate subscribers on mobile telephony devices such as mobile phones and computers.

[186] With reference to figure 11, a loudspeaker 640 can output a result related to a sound processed by the processor 610. A microphone 641 can receive an input related to a sound that will be used by the processor 610. q LOzcn / eznz / q / YiAi

[187] 1. Space Reuse (SR) Behavior

[188] In 1 c» s sistena s LAN india mb ricos 802.11ax, SR operation is a method to improve spectral efficiency by increasing the number of parallel transmissions. It can be carried out to adjust the carrier detection threshold (CST) for interBSS transmission detected through SR operation. CST coordination is achieved through two mechanisms: i) SR based on detection of overlapping Basic Service Set packets (OBSS BD), and ii) parameterized spatial reuse (BSR).

[189] The main difference between the two mechanisms lies in the degree of collaboration between BSSs to identify RS-based opportunities. Both mechanisms include Transmission Power Control (TLC) to further limit interference generated by simultaneous transmissions.

[190] SR operation is introduced as a mechanism to increase the number of stored transmissions and spectral efficiency in OBSS. In some cases, dynamic sensitivity and transmit power tuning have been shown to significantly improve network performance and help reduce the impact of the well-known hidden / exposed device problem. However, in some cases, modifying the CST or transmit power can exacerbate the hidden / exposed device problem by creating flow deficiencies and asymmetry.

[191] Figure 12 is a graph showing the effect of increasing and decreasing the transmission power and sensitivity in a WLAN. For example, increasing sensitivity can contribute to more frequent channel access because it reduces the carrier sniffing (CS) area. However, this can lead to a higher number of collisions with hidden nodes. In addition, a more robust Modulation and Coding Scheme (MCS) is required because a more aggressive channel access policy can expose the receiver to higher levels of interference.

[192] SR operation relies on dynamic Clear Channel Assessment / Carrier Sense (CCA / CS) coordination to increase the number of transmission opportunities (TXOPs) in OBSS. The CCA / CS mechanism is activated in a Hi-Fi device when it detects the preamble of a transmission from another device. A detected transmission (exceeding the physical sensitivity threshold) may not be correctly decoded if the received signal is weak. Conversely, for decoded transmissions exceeding the CCA / CS threshold, the detection of the physical or virtual carrier establishes the medium in use. The capture effect is also used when multiple signals are detected, allowing the operation to lock onto the strongest signal without experiencing packet collisions.

[193] Figure 13 is an example illustrating a CS area in a WLAN system.

[194] The concept mentioned above is illustrated in Figure 13. In Figure 13, the APa in the middle can detect a received signal higher than the sensitivity of the antenna receiver, but can only decode signals above the CCA / CS threshold. Furthermore, channel utilization is improved because the APb transmission can be ignored using the OBSS / PD threshold due to the SR llax operation. Additionally, the transmit power limitation is applied in the case of a TXOP detected by the OBSS / PD threshold. In Figure 13, the transmit power is fixed, and all devices use the same frequency channel.

[195] 1.1 SR based on PD OBSS

[196] Upon receiving a PPDU, the MAC layer of a specific device receives a notification from the PHY. At this point, the node inspects the frame and determines whether the PPDU is an Intra-BSS frame or an Inter-BSS frame among several operations. By quickly identifying the source of an ongoing transmission, a HE STA can improve the probability of accessing a channel by using an appropriate OBSS / PD value.

[197] 802.11ax defines a set of rules to limit the OBSS / PD threshold, and the upper limit is as follows. OBSS / PD < max (oBSS / PDLillin.

[198] miniOBSS / PD,,^. OBSS / PD, I ( IN - TXJ'WK))}.

[199] Here, OBSS / PDmn and OBSS / PDma:·- are -82dBm and -62dBm, respectively, and the reference TX PWRvef power is 21dBm or 25dBm depending on the device's capability. TX PAR means the transmit power at the antenna connector in dBm of the HE node that identifies the TXOP based on SR.

[200] Figure 14 is a graph showing the adjustment rules for OBSS / PD and transmission power.

[201] Along with sensitivity adjustment, SR operations include limiting the transmit power for all transmissions that occur as a result of a detected SR TXOP (i.e., after ignoring inter-BSS frames provided through OBSS / PD-based SR operations). The maximum allowable transmit power (TX PWRmax) is defined as:

[202] TX,.1'\VUI1MXTX(OBSS / PD ()BSS / l'Dt||il|)

[203] The above equation holds for OBt>b / E'Dmax or— OBSS / PD > OBSS / PDmin. Otherwise, the maximum transmission power is not limited. When applying the power limitation, the OBSS / PD value is intended to reduce the effect of simultaneous transmission caused by SR.

[204] In short, the higher the threshold OBSS / PD (more inter-BSS transmissions can be ignored), q LOzcn / eznz / q / YiAi will have lower transmit power (less interference should be generated). The transmit power limit lasts until the end of the SR TXOP identified by the HE node, which begins when the backlash reaches zero. This period depends on the active transmission period used to detect the SR TXOP.

[205] 1.2 Parametric spatial reuse (PSR)

[206] The PSR operation is destined as an alternative to the OBSS / PD-based SR for TB transmission. A node that uses a PSR opportunity identifies

[207] The PSR opportunity in the detected TB transmission. On the other hand, the opportunist carries out the TB transmission and finds transmission support indicating support for PSR operation in the TF header (trigger frame). To identify a PSR opportunity, the opportunist must check if the TB PPDU following a given TF packet can be ignored.

[208] To do so, the opportunist's intended transmission power must not exceed the requirement imposed by the transmission holder (encapsulated in the PSR_INPUT parameter).

[209] If the opportunist verifies the PSR value of the detected TF and confirms that the expected transmit power is acceptable, transmission takes place for the duration of the TB PPDUs (indicated in the Common Information field). In particular, the expected transmit power must be less than the PSR value measured on the inherited portion of the TF (i.e., the PHY header) minus the received power level (RPL). The PSR value is calculated as follows.

[210] l'SK TX I'WIÍai· Ijj'z

[211] where TX PWRAP is the normalized transmit power in dBm at the antenna connector output and Fmax AP is the normalized value in dB that captures the maximum permissible interference at the transmitter. In particular, Pmax AP is calculated by subtracting the minimum SNR that gives 10% of PER from the target RSSI indicated in TE (based on the highest MCS used for transmission UL HE TB PPDU). A safety margin (set at the AP) is also included so that it does not exceed 5 dB. q LOzcn / eznz / q / YiAi

[212] 2. Activation plot and SR

[213] Figure 15 shows an operation in accordance with UL-MU.

[214] As shown, a transmitting STA (e.g., AP) can perform channel access through contention (i.e., backtracking) and transmit a 1030 activation frame. That is, the transmitting STA (e.g., AP) can transmit a PPDU that includes a 1030 activation frame. When a PPDU that includes an activation frame is received, a TB (activation-based) PPDU is transmitted after a delay equal to SIES.

[215] TB PPDUs 1041 and 1042 can be transmitted in the same time zone and transmitted from a plurality of STAs (e.g., user STAs) for which AIDs are indicated in activation frame 1030. ACK frame 1050 for TB PPDU can be implemented in various ways.

[216] The specific characteristics of the activation plot are described with reference to Figures 16 to 19. Even when using UL-MU communication, either an orthogonal frequency division multiple access (OFDMA) technique or a MU MIMO technique can be used, and OFDMA and MU MIMO techniques can be used simultaneously.

[217] Figure 16 shows an example of a common information field of an activation frame.

[218] Figure 17 shows another example of a common information field of an activation frame.

[219] Figure 16 shows an HE variant of a common information field, and Figure 17 shows an EHT variant of a common information field. That is, the activation frame can include a common information field corresponding to the HE variant and / or a common information field corresponding to the EHT variant.

[220] Figure 18 shows a format of a UL spatial reuse subfield.

[221] With reference to Figures 16 and 1 / , when the activation frame requests the HE TB PPDU, the UL Spatial Reuse subfield of the common information field provides a value to be included in the Spatial Reuse field in the HE-SIG-A field of the requested HE TB PPDU. In the UL Spatial Reuse subfield, each Spatial Reuse subfield n (l<=n<=4) is set to the same value as the corresponding subfield in the HE-SIG-A field of the HE TB PPDU. The fields of q LOzcn / eznz / q / YiAi Spatial Reuse 1, Spatial Reuse 2, Spatial Reuse 3, and Spatial Reuse 4 included in the HE-SIG-A field of the HE TB PPDU are defined as follows. Each Spatial Reuse field consists of 4 bits.

[222] Each Spatial Reuse field included in the HE-SIG-A field of the HE TB PPDU indicates whether a specific spatial reuse mode is allowed in a sub-band of the PPDU while transmitting the PPDU, and indicates a value used to determine the limit on the transmit power of a parameterized spatial reuse transmitting (PSRT) PPDU when PSR reuse is allowed.

[223] First, if the Bandwidth field indicates 20 MHz, 40 MHz, or 80 MHz, Spatial Reuse 1 is applied to the first 20 MHz subband. If the Bandwidth field indicates 160 / 80+80 MHz, Spatial Reuse 1 is applied to the first 40 MHz subband of the 160 MHz operating band. Spatial Reuse 1 is set to one of the Spatial Reuse field encoding values ​​for HE TB PPDU as shown in Table 3 below. Spatial Reuse 1 refers to the first value in the TXVECTOR SPATIAL REUSE parameter when present.

[224] Second, if the bandwidth field q LOzcn / eznz / q / YiAi indicates 40 MHz or 80 MHz, the Spatial Reuse 2 field applies to the second 20 MHz subband. If the channel width in which the STA operates is 20 MHz, the Spatial Reuse 2 field is set to the same value as the Spatial Reuse 1 field. If the channel width in which the STA operates is 40 MHz in the 2.4 GHz band, the Spatial Reuse 2 field is set to the same value as the Spatial Reuse 1 field. If the bandwidth field indicates 160 / 80+80 MHz, the Spatial Reuse 2 field applies to the second 40 MHz subband of the 160 MHz operating band. Spatial Reuse 2 is set to one of the Spatial Reuse field coding values ​​for HE TB PPDU as shown in Table 3 below.The Spatial Reuse 2 field refers to the second value in the TXVECTOR SPATIAL REUSE parameter when it is present.

[225] Third, if the bandwidth field indicates 80 MHz, the Spatial Reuse 3 field applies to the third 20 MHz subband. If the channel width in which the STA operates is 20 MHz or 40 MHz, the Spatial Reuse 3 field is set to the same value as the Spatial Reuse 1 field. If the bandwidth field indicates 160 / 80-80 MHz, the Spatial Reuse 3 field applies to the third 40 MHz subband of the 160 MHz operating band. If the channel width in which the STA operates is 80 + 80 MHz, the Spatial Reuse 3 field is set to the same value as the Spatial Reuse 1 field. The Spatial Reuse 3 field is set to One of the encoding values ​​for the Spatial Reuse field for HE TB PPDU is shown in Table 3 below. Spatial Reuse field 3 refers to the third value in the TXVECTCR SPATIAL REUSE parameter when present.

[226] Fourth, if the bandwidth field indicates 80 MHz, the Spatial Reuse 4 field applies to the fourth 20 MHz subband. If the channel width in which the STA operates is 20 MHz, the Spatial Reuse 4 field is set to the same value as the Spatial Reuse 1 field. If the channel width in which the STA operates is 40 MHz, the Spatial Reuse 4 field is set to the same value as the Spatial Reuse 2 field. If the bandwidth field indicates 160 / 80+80 MHz, the Spatial Reuse 4 field applies to the fourth 40 MHz subband of the 160 MHz operating bank. If the channel width in which the STA operates is 80+80 MHz, the Spatial Reuse 4 field is set to the same value as the Space Reuse field 2.The Spatial Reuse 4 field is set to one of the Spatial Reuse field encoding values ​​for HE TB PPDU as shown in the q LOzcn / eznz / q / YiAi. Table 3 below. The Spatial Reuse 4 field refers to the fourth value in the TXVECTOR SPATIAL REUSE parameter when it is present. q LOzcn / eznz / q / YiAi

[227] Table 3 Value Meaning 11 l'SK DISAI 1 o\V 1 J'SR dllm 11 l'SK VJHm 12 l'SR '2 dllm I ' l'SK 2 dllm 14 1 'S 1< 2*' di >in M l'SK AND NON Sl«. OliSS l'D ΓΚΟΙIII11 11 1)

[228] The four Spatial Reuse fields 1, 2, 3 and 4 are arranged in order of frequency as follows.

[229] In the case of 2 3 MHz, a Reuse field The Spatial field corresponds to the full 20 MHz (the other 3 Spatial Reuse fields show the same value). The Spatial Reuse field applies only to the 20 MHz MHz used for transmission.

[230] In the case of 40 MHz, there are two Space Reuse fields, including a Space Reuse field 3 that has the same value as Space Reuse field 1 and a Space Reuse field 4 that has the same value as Space Reuse field 2. Each pair of Space Reuse fields applies only to the corresponding 20 MHz used for transmission.

[231] In the case of E0 MHz, there are four Space Reuse fields, one for each 20 MHz subchannel.

[232] - In the case of OFDMA transmission of a given bandwidth, each Spatial Reuse field corresponding to a 20 MHz subband is also applicable to the 242-tone RUs aligned closest to the frequency of the 20 MHz subband described above (in the tone plan for that bandwidth). The correspondence of the Spatial Reuse field to 242-tone RUs also applies to all RUs within a 242-tone RU. The above also shows that it implies that the 20 MHz OBSS STA uses the Spatial Reuse field corresponding to its own 20 MHz channel, the 40 MHz OBSS STA located in the lower frequency half of the 80 MHz BSS uses the Spatial Reuse 1 and Spatial Reuse 2 field values, and the 40 MHz OBSS STA located in the upper frequency half of the 80 MHz BSS uses the Spatial Reuse 3 and Spatial Reuse 2 field values. Space 4.

[233] For 160 MHz and 80 + 80 MHz, there are four fields of Space Reuse, one for each 40 MHz subchannel.

[234] - In the case of OFDMA transmission of a given BW, each Spatial Reuse field corresponding to a 40 MHz subband can also be applied to the 484-tone RU closest aligned to the frequency of that 40 MHz subband. The correspondence of the Spatial Reuse field with 484-tone RUs also applies to all 10-tone RUs within 484-tone RUs.

[235] The following table shows an example of Spatial Reuse field coding for HE SU PPDU, HE ER SU PPDU and HE MU PPDU. q LOzcn / eznz / q / YiAi

[236] Table 4 Value Meaning 0 PSR_DISALLOW 1-12 Reserved 13 SR_RESTRICTED 14 SR_DELAYED 15 PS R_AN D_N ON-S RG_OB SS_ P D_ PROHIBIT ED

[237] Returning to Figure 18 again, when the activation frame requests the EHT TB PPDU, each Spatial Reuse n subfield (l<=n<=4) of the common information field is either a Spatial Reuse 1 subfield or a Spatial Reuse 2 subfield of the Special User Information field, determined based on one of the fields.

[238] Figure 19 shows an example of a Special User Information field format.

[239] If the Special User Information field is included in the activation frame, the Present subfield of the Special User Information field of the EHT variant of the Common Information field is set to 0; otherwise, it is set to 1.

[240] The Special User Information field is identified with an AID12 value from 2007 and is optionally present in an activation frame generated by the EHT AP.

[241] The Special User Information field, if present, is located immediately after the Common Information field of the activation frame, transmits the non-derived subfield of the U-SIG field of the requested EHT TB PPDU, and the Special User Information field of the Present Common Information subfield is set to 0.

[242] The existence of the Special User Information field in the activation frame is indicated by B55 of the Common Information field in the activation frame. B55 is set to 1 to indicate that there is no Special User Information field in the activation frame. LOzcn / eznz / q / YiAi is set to 0 to indicate that the Special User Information field exists in the activation frame immediately following the Common Information field.

[243] The Spatial Reuse n subfield (l<=n<=2) in Figure 19 is set to the same value as the corresponding Spatial Reuse subfield in the U-SIG field of the EHT TB PPDU. The Spatial Reuse 1 and Spatial Reuse 2 fields included in the U-SIG field of the EHT TB PPDU are defined as follows. Each Spatial Reuse field consists of 4 bits.

[244] Each Spatial Reuse field included in the EHT TB PPDU U-SIG field indicates whether a specific spatial reuse mode is permitted in a PPDU subband while transmitting the PPDU, and indicates a value used to determine the transmit power limit of the PPDU PSRT when PSR reuse is permitted.

[245] First, if the bandwidth field indicates 20 MHz or 40 MHz, the Spatial Reuse 1 field applies to the first 20 MHz subband. If the bandwidth field indicates 80 MHz, the Spatial Reuse 1 field applies to each 20 MHz subchannel of the first 40 MHz subband within the 80 MHz operating band. If the bandwidth field indicates 160 MHz, the Spatial Reuse 1 field applies to each 20 MHz subchannel of the first 80 MHz subband within the 160 MHz operating band. q LOzcn / eznz / q / YiAi If the bandwidth field indicates 320 MHz-1 or 320 MHz-2, the Spatial Reuse 1 field applies to each 20 MHz subchannel of the first 160 MHz subband within the 320 MHz operating band.

[246] The Spatial Reuse 1 field is set in the SPATIAL_REUSE(1) parameter of TXVECTOR, including the Spatial Reuse field encoding value for HE TB PPDU as shown in Table 3 above.

[247] Second, if the bandwidth field indicates 20 MHz, the Spatial Reuse 2 field is set to the same value as the Spatial Reuse 1 field and is discarded if dotllEHTBaseLineEeaturesImplementedOnly is true. If the bandwidth field indicates 40 MHz, the Spatial Reuse 2 field applies to the second 20 MHz subband. When operating in the 2.4 GHz band, the Spatial Reuse 2 field is set to the same value as the Spatial Reuse 1 field. If the bandwidth field indicates 80 MHz, the Spatial Reuse 2 field applies to each 20 MHz subchannel of the second 40 MHz subband within the 80 MHz operating band. If the bandwidth field indicates 160 MHz, the Spatial Reuse 2 field applies to each 20 MHz subchannel of the second 80 MHz subband within the 160 MHz operating band.If the bandwidth field indicates 320 MHz-1 or 320 MHz-2, the Spatial Reuse 2 field applies to each 20 MHz subchannel of the second 160 MHz subband within the 320 MHz operating band.

[248] The Spatial Reuse 2 field is set in the SPATIAL REUSE(2) parameter of TXVECTOR, including the Spatial Reuse field encoding value for HE TB PPDU, as shown in Table 3 above. q LOzcn / eznz / q / YiAi

[249] 3. Modalities applicable to this specification

[250] In the MEAN 802.liber system, increased throughput is achieved by using a wider bandwidth than the existing 802.belt or by using more antennas to increase maximum throughput. Furthermore, this specification also considers a method for aggregating and using multiple bands / links.

[251] In the meantime, to reduce interference between BSSs, spatial reuse can be used in the same way as 802.11ax, and the present specification proposes a configuration of a spatial reuse field of an EHT TB PPDU.

[252] The EHT activation frame reuses the HE activation frame structure for backward compatibility with 802.11ax, and the EHT Common Information field and EHT User Information field can be configured for the EHT instead. TB PPDU. q LOzcn / eznz / q / YiAi

[253] The Special User Information field is a User Information field that does not provide user-specific information and provides extended common information that is not provided in the Common Information field.

[254] When the Special User Information field is included in the activation frame, the Special User Information field indicator subfield of the Common Information field EHT variant is set to 0, and when the Special User Information field is not included in the activation frame, the Special User Information field indicator subfield is set to 1.

[255] The Special User Information field is identified with an AID12 value from 2007 and is optionally present in an activation frame generated by the EHT AP.

[256] If the Special User Information field exists, it is located immediately after the Common Information field of the activation frame and transmits a non-derived subfield of the U-SIG field of the requested EHT TB PPDU, and the indicator subfield of the Special User Information field of the Common Information field is set to 0.

[257] The existence of the Special User Information field in the activation frame is indicated by B55 of the Common Information field in the activation frame. B55 is set to 1 to indicate that there is no Special User Information field in the activation frame and is set to 0 to indicate that the Special User Information field exists in the activation frame immediately after the Common Information field.

[258] 19, in the Special User Information field, the AID12 subfield consists of 12 bits, the PHY version IE1 subfield consists of 3 bits, the UL bandwidth extension subfield consists of 2 bits, the Spatial Reuse 1 subfield consists of 4 bits, the Spatial Reuse 2 subfield consists of 4 bits, the U-SIG Ignore and Validate subfield consists of 12 bits, and the Reserved subfield consists of 3 bits.

[259] The PHY Version ID subfield indicates the WiFi version after EHT and EHT. For EHT, the PHY Version ID subfield is set to 0. The UL Bandwidth Extension subfield indicates the bandwidth of the TB PPDU requested from the EHT STA addressed together with the UL BW subfield of the Common Information field (i.e., the bandwidth of the U SIG field of the EHT TB PPDU). The UL Bandwidth Extension subfields are defined in the following table: LOzcn / eznz / q / YiAi.

[260] Table 5 UL BW Bandwidth for HE TB PE'DU (MHz) UL Bandwidth Extension Bandwidth for EHT TB PE'DU (MHz) 0 2 0 0 20 0 2 0 1 Reserved 0 2 0 2 Reserved 0 2 0 3 Reserved 1 4 0 0 40 1 4 0 1 Reserved 1 4 0 2 Reserved 1 4 0 3 Reserved 2 8 0 0 80 2 8 0 1 Reserved ¿L 8 0 2 Reserved 2 8 0 3 Reserved 3 160 0' Reserved 3 160 1 160 3 160 2 320-1 3 160 3 320-2

[261] The following is an example of the configuration of the UL BW Extension and UL BW fields when an Aggregate PPDU (A-PPDU) is activated in which HE Sub-PPDU and EHT Sub-PPDU are mixed.

[262] Table 6 UL BW Bandwidth for HE TB PPDU (MHr) UL Bandwidth Extension Bandwidth for EHT TB PPDU (MHr) 0 2 0 0 20 0 2 0 1 Reserved 0 2 0 Reserved 0 2 0 q Reserved 1 4 0 0' 40 1 4 0 1 Reserved 1 4 0 2 Reserved 1 4 0 q Reserved 2 80 0' 80 2 8 0 1 1 60 2 8 0 2 320-1 2 8 0 q 320-2 3 8 0 0 80 3 1 60 1 1 6 0 3 160 2 320-1 3 160 3 320-2 q LOzcn / eznz / q / YiAi

[263] The UL BW Extension and UL BW fields can be configured differently than in the table above.

[264] The Reuti1 i Spatial ration 1 and 2 subfields are set to the same values ​​as the Reuti 1 i Spatial ration 1 and 2 subfields of the EHT TB PPDU U-SIG field, which are channel-specific values ​​according to BW and will be described in more detail below.

[265] The Ignore and Validate U-SIG subfield is set to a value copied as it is in the Reserved field in the EHT TB PPDU USIG. The 3 bits of the Reserved subfield may be reserved or used for other purposes.

[266] Figure 20 shows an example of an EHT User Information field format.

[267] With reference to figure 20, a PS160 field indicates a RU and a multiple resource unit (MRU) assigned to an STA together with a RU assignment field.

[268] Figure 10 shows the structure of a representative EHT PPDU. It can be used for SU and MU transmission, and EHT-SIG may not be included when transmitting TB PPDU.

[269] Universal-SIG (U-SIG) includes a version-independent field and a version-dependent field.

[270] EHT-SIG can carry common information and user-specific information.

[271] Bandwidth can be indicated by the bandwidth field, which can be included in the standalone U-SIG version. The corresponding field can consist of 3 bits and can contain only bandwidth information without including information about the preamble punch pattern. In addition, punch information can be carried in other U-SIG fields or EHT-SIG-specific fields.

[272] In addition, the version-independent field may include a 3-bit version identifier indicating a Wi-Fi version later than 802.libe and 802.libe, a 1-bit DL / UL field, BSS color, TXOP duration, etc., and the version-dependent field may include information such as the PPDU type. Furthermore, U-SIG is co-encoded with two symbols and consists of 52 data tones and 4 pilot tones per 20 MHz. It is modulated in the same way as HE-SIGA, that is, at a BPSK 1 / 2 code rate. Furthermore, EHT-SIG can be encoded as a variable MCS, and as in the existing 802.11ax, 1 2 1 2 ... in 20 MHz units. It can have a structure (it can be composed of other structures, for example, 1 2 3 4 ... or 12123434 ...), it can also be configured in 80 MHz units, and in a bandwidth of 80 MHz or higher, the EHT-SIG can be duplicated in 80 MHz units.

[273] Spatial reuse can be used to reduce interference with OBSS. This specification specifically proposes a configuration of a Spatial Reuse field in the EHT TB PPDU. In the EHT TB PPDU, the Spatial Reuse field can be located in a U-SIG version-dependent field and can be composed of four fields, as in 802.11ax, with each field using four bits. The meaning of each entry expressed by each four bits can be the same as described above or can have a different meaning. Alternatively, each field can use a different number of bits. Furthermore, in the EHT TB PPDU, the Spatial Reuse field can consist of two fields instead of four.

[274] The following is a configuration of a representative U-SIG field of the EHT TB PPDU.

[275] q LOzcn / eznz / q / YiAi Table 7 Two parts of U-SIG Bit Field Number of bits Description u-SIG1 B0-B2 PHY version identifier 3 Differentiate between different PHY clauses. Set to 0 for EHT. The values ​​1- / are Validate if DotllEHTBaseLine FeaturesImp lementedOnly is equal to true. B3-B5 BW 3 Set to 0 for 20 MHz. Set to 1 for 40 MHz. Set to 2 for 80 MHz. Set to 3 for 160 MHz. Set to 4 for 320 MHz-1. Set to 5 for 320 MHz-2. B6 UL / DL 1 Set to 1 to indicate that the PPDU is addressed to the IP. B7-B12 BSS Color 6 An identifier of the BSS. See the QI Q7Cn / Q7n7 / H / YIAI

[276] TXVECTOR parameter BSS COLOR. B13- B19 TXOP / Set to 127 to indicate no duration information if the TXVECTOR TXOP_DURATION parameter is not specified. Set to a value less than 127 to indicate duration information for TXOP NAV configuration and protection as follows: If the TXVECTOR TXOP-DURATION parameter is QI Q7Cn / Q7n7 / H / YIAI

[277] If the value is less than 512, then B13 is set to 0 and B14-B19 is set to the floor (TXOP_DURATION / 8). Otherwise, B13 is set to 1 and B14-B19 is set to the floor ((TXOP_DURATION / 12) / 128). B20-B25 Ignore. 6 Set to a value indicated in B25-B30 of the USIG Ignore and Validate subfield in the Special User Information field in the frame. QI Q7Cn / Q7n7 / H / YIAI

[278] Trigger and Ignore if dotllEHTBaseLine FeaturesImplementedOnly equals true. See Table 9-2 9j 4 (Mapping the User Special Information field to the U-SIG-1 and U-SIG-2 fields in the EHT TB PPDU) u-SIG2 B0-B1 PPDU Type and Compressed Mode Set 1 ecerenijn value of 0 for a TB PPDU. For further clarification on all values ​​of this field, see the field QI Q7Cn / Q7n7 / H / YIAI

[279] UL / DL combination and PPDU type and compression mode. Undefined values ​​in this field are validated if dotllEHTBaseLine FeaturesImplementedOnly is equal to true. B2 Validate 1 Set to a value indicated in B31 of the Ignore and Validate subfield of USIG in the Special User Information field in the Trigger frame and Validate if dotllEHTBaseLine Features 1 mp 1 emen

[280] tedOnly equals true. B3-B6 Spatial Reuse 1 4 Indicates whether or not specific spatial reuse modes are allowed in a PPDU subband during transmission of this PPDU, and if PSR spatial reuse is allowed, indicates a value that is used to determine a limit on the transmission power of the PSRT PPDU. If the Bandwidth field indicates 20 MHr or 40 MHr, QI Q7Cn / Q7n7 / H / YIAI

[281] If the Bandwidth field indicates 160 MHz, this field applies to each 20 MHz subchannel of the first 80 MHz subband within the 160 MHz operating band

[282] MHz. If the Bandwidth field indicates 320 MHz-1 or 320 MHz-2, this field applies to each 20' MHz subchannel of the first 160 MHz subband within the 320 MHz operating band. Spatial Reuse 2 4 Indicates whether or not specific spatial reuse modes are permitted in a PPDU subband during the transmission of this PPDU, and if reuse is permitted QI Q7Cn / Q7n7 / H / YIAI

[283] The PSR spatial range indicates a value used to determine a limit on the PSRT PPDU's transmit power. If the Bandwidth field indicates 20 MHz, this field is set to the same value as the Spatial Range field. Ignore if dotllEHTBaseLine Features 1 mp 1 element Only is equal to true. If the Bandwidth field indicates 40 MHz, this QI Q7Cn / Q7n7 / U / YIAI

[284] This field applies to the second 20 MHz subband. If operating in the 2.4 GHz band, this field is set to the same value as the Spatial Reuse 1 field. If the Bandwidth field indicates 80 MHz, this field applies to each 20 MHz subchannel of the second 40 MHz subband within the 80 MHz operating band. If the Bandwidth field indicates 160 MHz,

[285] This field applies to each 20 MHz Ir subchannel of the second 80 MHz subband within the 160 MHz operating band. If the Bandwidth field indicates 320 MHz-1 or 320 MHz-2, this field applies to each 20 MHz subchannel of the second 160 MHz subband within the 320 MHz operating band. B11-B15 Ignore Set to a value indicated in 632B36 of the Ignore subfield QI Q7Cn / Q7n7 / H / YIAI

[286] and validate from USIG in the User's special information field in the Activator frame and Ignore if dot1lEHTBaseLine Features 1 mp 1 e me π tedOnly is equal to true. B16- B19 CRC 4 CRC for bits 0-41 of the USIG field. Bits 0-41 of the U-SIG field c: orresp, or den the bits 0-25 of the USIG-1 field followed by bits 0-15 of the USIG-2 field B2 0- B25 CO 1 3 6 Used to terminate the lattice of

[287] Convolutional decoder. Set to 0. # Total Bits in U-SIG 52 q LOzcn / eznz / q / YiAi

[289] The above U-SIG field can be configured by copying the field from the activation frame as is.

[290] This specification proposes a method for configuring four Spatial Reuse fields of the Common Information field and two Spatial Reuse fields of the EHT Common Information field (or special information field), taking into account the case where the activation frame activates the HE TB PPDU, EHT TB PPDU, or TB A-PPDU. Here, the activation frame is assumed to be an EHT activation frame capable of activating all HE TB PPDUs, EHT TB PPDUs, or TB A-PPDUs. Furthermore, the Common Information field of the activation frame is assumed to be a Common Information field of the HE / EHT variant, and the EHT Common Information field of the activation frame is assumed to be a special information field.

[291] The structure of the EHT Activation frame, HE TB PPDU and EHT TB PPDU is as follows.

[292] The EHT Activation frame consists of a Common Information field for the HE / EHT variant (Special User Information field) and a User Information field for the HE / EHT variant. The Common Information field for the EHT variant includes 4 Spatial Reuse fields, and the 4 Spatial Reuse fields apply to each of the 4 subchannels and are defined for SR (Spatial Reuse) of the OBSS HE STA.

[293] The Special User Information field exists when AID = 2007, includes two Spatial Reuse fields, the two Spatial Reuse fields are duplicated in the two Spatial Reuse fields in the EHT TB BBDU USIG and are defined for the SR of the EHT OBSS STA.

[294] As described above, the bandwidth of the EHT TB BBDU is indicated through the 2-bit UL BW field in the Common Information field of the EHT variant and the 2-bit UL Bandwidth Extension subfield in the Special User Information field.

[295] Among the UL Reserved subfields HE-SIG-A2 in the Common Information field of the HE variant, B54 and B55 are used as HE / EHT B'160 and Special User Information field indicator subfields in the Common Information field of the EHT variant, respectively (see Figures 16 and 17).

[296] The HE / EHT P160 subfield indicates whether the primary 160 is an HE TB BBDU (set to 1) or an EHT TB BBDU (set to 0). The Field Indicator subfield of q LOzcn / eznz / q / YiAi Special User Information indicates whether the Special User Information field exists (set to 0) or not (set to 1). That is, B54 and B55 of the Reserved UL HE-SIG-A2 subfields were originally set to 11, but when the EHT Activation frame activates the EHT TB PPDU, B54 and B55 are set to 00.

[297] The HE TB PPDU includes 4 Spatial Reuse fields in HE-SIG-A. The EHT TB PPDU includes two Spatial Reuse fields in the U-SIG. For the two Spatial Reuse fields included in the U-SIG, the values ​​of the two Spatial Reuse fields in the Special User Information field are duplicated.

[298] 3.1. When the activation frame activates only HE TB PPDU

[299] An activation frame can be configured simply as an existing HE activation frame without the EHT Common Information field and the EHT User Information field. In this case, the UL BW indicates the BW of the EHT TB PPDU, and consequently, four Space Reuse fields can also be configured in the same way as in existing 802.11ax. This can then be used to configure the Space Reuse field in HE-SIGA when transmitting an HE TB PPDU. That is, four Space Reuse fields can be configured in the Common Information field and four Space Reuse fields in the q LOzcn / eznz / q / YiAi EHT TB PPDU as shown in Appendix 1 described below.

[300] 3.2. When the activation frame activates only EHT TB PPDU

[301] When the activation frame activates only the EHT TB PPDU, the UL BW in the Common Information field can be set to a specific value to indicate the BW of the EHT TB PPDU. If the OBSS HE STA and the unassociated HE STA BW are used, they can be used to determine the BW of the TB PPDU. (This may vary depending on the UL BW configuration, but in the previous UL BW configuration example, the same BW can be determined when the 20 / 42 / 80 / 160 MHz EHT TB PPDU is activated. However, if the 320 MHz EHT TB PPDU is activated, the UL BW can be determined as 160 MHz.) Therefore, since OBSS HE STA and unassociated HE STA can perform Spatial Reuse using the 4 Spatial Reuse fields of the Common Information field, four Spatial Reuse fields in the Common Information field of the activation frame must be set to specific values.

[302] In the example of the UL BW and UL Bandwidth Extension subfields, the 4 Spatial Reuse fields in the Common Information field are the BW indicated by UL BW (20 / 40 / 80 / 160MHz), can be configured as the existing 802.11ax activation frame (even if it is not the example q LOzcn / eznz / q / YiAi (100 above, when the 20 / 40 / 80 / 160 MHz EHT TB PPDU is activated, the BW indicated in the UL BW is the same case). Similar to Appendix 1 described later, four Spatial Reuse fields can be configured in the Common Information field. Basically, this can be a value independent of the Spatial Reuse field setting in the U-SIG when transmitting the EHT TB PPDU, but as shown in Appendix 3 described later, the Spatial Reuse field in the U-SIG when transmitting the EHT TB PPDU can be configured using the four Spatial Reuse fields in the Common Information field.In this case, two Spatial Reuse fields in the EHT Common Information field (Special User Information field) can be configured identically (in other words, the Spatial Reuse field configuration method in EHT TB PPDU U-GIS in Appendix 3 applies as it does for the composition of two Spatial Reuse fields in the EHT Common Information field, and this value can be used to configure fields) or reserved.

[303] Four Spatial Reuse fields in the Common Information field can be configured as follows according to the BW (20 / 40 / 80 / 160 MHz) indicated in the UL BW in the UL BW example and UL Bandwidth Extension subfield above, when the EHT TB PPDU of q LOzcn / eznz / q / YiAi is activated 101 20 / 43 / 80 / 160MHz. (Even if it is not the previous example, when the 20 / 43 / 80 / 160 MHz EHT TB PPDU is activated, the BW indicated in the UL BW is the same) The configuration of the two Spatial Reuse fields in the EHT Comúzi Information field are described in Appendix 3 and can be configured with them. When the 20 MHz EHT TB PPDU is activated, the two Spatial Reuse fields in the EHT Common Information field are set to the same value, and one of these two values ​​can be duplicated to set the same value in all four fields of the Common Information field. When the 40 MHz EHT TB PPDU is activated, the two Spatial Reuse fields in the EHT Common Information field are set to spatial reuse values ​​corresponding to each 20 MHz. These values ​​can be copied and set as they are in the corresponding 20 MHz field among the four Spatial Reuse fields in the Common Information field.In other words, the value of the first field of the two Spatial Reuse fields in the EHT Common Information field can be duplicated in the first and third value of the four Spatial Reuse fields in the Common Information field, and the value of the second field between the two Spatial Reuse fields in the EHT Common Information field can be duplicated in the second and fourth value between the four Spatial Reuse fields in the q field LOzcn / eznz / q / YiAi. 102 of Common Information. When the 80 MHz EHT TB PPDU is activated, the two Spatial Reuse fields in the EHT Common Information field are set to spatial reuse values ​​corresponding to every 40 MHz, and these values ​​are duplicated as they are. The first two fields among the four Spatial Reuse fields in the Common Information field can be set as the first value of the two Spatial Reuse fields in the EHT Common Information field. The last two fields, q LOzcn / eznz / q / YiAi, among the four Spatial Reuse fields in the Common Information field can be set as the last values ​​among the two Spatial Reuse fields in the EHT Common Information field.Furthermore, to correct the value according to the bandwidth difference (or according to the normalization difference), after adding or subtracting a specific dBm value to the value (i.e., the PSR value in dBm), it can be changed to a value corresponding to a maximum dBm value that is less than or equal to this value. In this case, it may be desirable to compensate by subtracting 6 (or 20 log2) dB. Even if the channel size corresponding to each Spatial Reuse field value is different, if normalization is applied to the same channel size (e.g., normalization by 20 MHz), it is not necessary to correct when copying, and this is the same in various configuration situations. 103 continued. When the 160 MHz EHT TB PPDU is activated, the two Spatial Reuse fields in the EHT Common Information field are set to spatial reuse values ​​corresponding to 80 MHz each, and these values ​​are copied as is, with the first two fields among the four Spatial Reuse fields. The fields in the Common Information field can be set as the first value among the two Spatial Reuse fields in the EHT Common Information field, and the last two fields among the four Spatial Reuse fields in the Common Information field can be set as the last value among the two Spatial Reuse fields in the EHT Common Information field.Furthermore, to correct the value according to the bandwidth difference (or normalization difference), a specific dBm value can be added to or subtracted from the corresponding value, and then changed to a value corresponding to a maximum dBm value that is less than or equal to this value. In this case, it may be desirable to compensate by subtracting 6 (or 20 log2) dB in particular. However, if the values ​​of the two Spatial Reuse fields in the EHT Common Information field are normalized to a 2.0 MHz channel, and the values ​​of the four Spatial Reuse fields in the Common Information field are simply normalized to the corresponding channel, q LOzcn / eznz / q / YiAi. 104 40MHz, it may be desirable to correct by adding 6 (or 20 log2) dB.

[304] The four Spatial Reuse fields in the Common Information field can be configured as follows, according to the bandwidth (160 MHz) indicated in the UL BW when the 320 MHz EHT TB PPDU is activated in the example; from the UL BW and UL Bandwidth Extension subfields above. (Even if it is not the above example, if the 320 MHz EHT TB PPDU is activated, the bandwidth indicated in the UL BW is 160 MHz.) It is assumed that the transmission bandwidth of the activation frame is different from that of the EHT TB PPDU and is transmitted below 160 MHz. In this case, the four Spatial Reuse fields in the Common Information field can be configured as 260 MHz in Appendix 1, which is described below. However, 160 MHz can be 160 MHz, including a channel through which an activation frame is transmitted.Basically, this value may be unrelated to the Spatial Reuse field configuration in U-SIG when transmitting the EHT TB PPDU, but the U-SIG Spatial Reuse field of the EHT TB PPDU can be configured using four Spatial Reuse fields in the Common Information field. For example, the U-SIG Spatial Reuse field of the EHT TB PPDU corresponding to 160 MHz is indicated by the values ​​of the four Spatial Reuse fields in the Information field q LOzcn / eznz / q / YiAi. 105 Common can be set to one of the four Spatial Reuse fields in the Common Information field. For example, it can be set to the largest or smallest value. In this case, a field corresponding to 160 MHz, indicated by the four Spatial Reuse fields in the Common Information field, between two Spatial Reuse fields in the EHT Common Information field, can be set identically (in other words, it is set to one of the four Spatial Reuse field values. For example, it can be set to the largest or smallest value. This value can be used to configure the corresponding 160 MHz Spatial Reuse field in the EHT TB PPDU U-SIG) or reserved.Between the two Spatial Reuse fields in the EHT Common Information field, the fields corresponding to 160 MHz other than 160 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field can be set to appropriate Spatial Reuse values. This value can be used to set fields corresponding to 160 MHz other than the 160 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field between the Spatial Reuse fields in the EHT TB PPDU U-SIG.

[305] The 4 Space Reuse fields in the q field LOzcn / eznz / q / YiAi Common Information 106 can be configured as follows, according to the bandwidth (160 MHz) indicated in the UL BW when the 320 MHz EHT TB PPDU is activated, as in the example of the UL BW and UL Bandwidth Extension subfields above. (Even if it is not the example above, if the 320 MHz EHT TB PPDU is activated, the bandwidth indicated in the UL BW is 160 MHz.) It is assumed that the activation frame's transmission bandwidth is different from that of the EHT TB PPDU and is transmitted below 160 MHz. The configuration of the two Spatial Reuse fields in the EHT Common Information field is described in Appendix 3 and can be configured using them. That is, when a 320 MHz EHT TB PPDU is activated, two Spatial Reuse fields in the EHT Common Information field are each set to a spatial reuse value corresponding to 160 MHz.Between the two Spatial Reuse fields in the EHT Common Information field, the values ​​corresponding to 160 MHz, including the channel through which the activation frame is transmitted, can be copied, and the corresponding values ​​can be configured identically to the four fields in the Common Information field. Furthermore, to correct the value according to the difference in bandwidth (or according to the difference in normalization), a specific dBm value (dBm value) can be added or subtracted from the corresponding value, and then changed to a value of q LOzcn / eznz / q / YiAi. 107 corresponds to the maximum dBm value that is less than or equal to this value (set all 4 values ​​equal). In this case, it may be convenient to compensate by subtracting 12 dB (or 20 log₂) in particular. However, if the values ​​of the 2 Spatial Reuse fields in the EHT Common Information field are normalized to a 20 MHz channel and the values ​​of the 4 Spatial Reuse fields in the Common Information field are simply normalized to the corresponding channel, 40 MHz, it may be desirable to correct by adding 6 (or 20 log₂) dB.

[306] The four Spatial Reuse fields in the Common Information field can be configured as follows, according to the BW (160 MHz) indicated in the UL BW when the 320 MHz EHT TB PPDU is activated in the UL BW example and UL Bandwidth Extension subfields above. (Even if it is not the above example, if the 320 MHz EHT TB PPDU is activated, the BW indicated in the UL BW is 160 MHz.) It is assumed that the transmission BW of the activation frame is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. Similar to 160 MHz in Appendix 1, described later, four Spatial Reuse fields can be configured in the Common Information field. However, 160 MHz can be either 160 MHz Primary or 160 MHz Secondary (or 160 MHz Low and 160 MHz High). For example, it can simply be 160 MHz Primary. q LOzcn / eznz / q / YiAi 108 Alternatively, each spatial reuse value (or PSR value, the same applies below) between 160 MHz Primary and 160 MHz Secondary (or 160 MHz "low" and 160 MHz "high") can be set to a spatial reuse value greater or less than 160 MHz. Or, it can be set to a spatial reuse value of 160 MHz with a value less than or greater than the minimum or maximum value of the four 40 MHz spatial reuse values ​​within the 160 MHz Primary (or 160 MHz "low") and the minimum or maximum value of the four 40 MHz spatial reuse values ​​within the 160 MHz Secondary (or 160 MHz "high"). Basically, this may be a value that has nothing to do with the configuration of the Spatial Reuse field in U-SIG when transmitting the EHT TB PPDU, but the Spatial Reuse field in U-SIG of the EHT TB PPDU can be configured using 4 Spatial Reuse fields in the Common Information field.For example, the Spatial Reuse field in the EHT TB PPDU U-SIG corresponding to 160 MHz, indicated by the values ​​of the four Spatial Reuse fields in the Common Information field, can be set to any one of the four Spatial Reuse fields in the Common Information field. For example, it can be set to the largest or smallest value. In this case, a field corresponding to 160 MHz indicated by the values ​​of 4 q LOzcn / eznz / q / YiAi. 109 Spatial Reuse fields in the Common Information field between 2 Spatial Reuse fields in the EHT Common Information field can be configured identically or reserved. (That is, it can be set to one of the four values ​​of the Spatial Reuse field. For example, it can be set to the largest or smallest value. This value can be used to configure the Spatial Reuse field corresponding to the corresponding 160 MHz in the EHT TB PPDU U-SIG).Between the two Spatial Reuse fields in the EHT Common Information field, the fields corresponding to 160 MHz other than 160 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field can be set to the appropriate Spatial Reuse values. This value can be used to set fields corresponding to 160 MHz other than 160 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field between the Spatial Reuse fields in the EHT TB PPDU U-SIG.

[307] The 4 Spatial Reuse fields in the Common Information field are activated when the 320MHz EHT TB PPDU is activated in the example of the UL BW and UL Bandwidth Extension subfields above. According to the BW (160 MHz) indicated in UL BW, it can be configured as another example as follows. (Even if it is not the q LOzcn / eznz / q / YiAi 110 previous example, if BVJ is activated as indicated in the UL BVí, it is for transmission of the frame of the EHT TB PPDU and that channel. There are four values ​​given MHz, each within 160 MHz (or 160 MHz low and 160 MHz ab). Spatial can be set by comparing the Reutili value: the 320 MHz EHT TB PPDU, the 160 MHz). The activation BW is assumed to be the same as the one transmitted through the same , Spatial Reuse of 40 MHz Primary and 160 MHz Secondary (lo), the Reuse value at a higher or lower value / Spatial Reuse of 40 MHz in the same location within two 160 MHz. That is, the first Spatial Reuse field in the Common Information field can be set by comparing the lowest Spatial Reuse value of 40 MHz of 160 MHz Primary (or 160 MHz low) and the lowest Spatial Reuse value of 40 MHz of 160 MHz Secondary (or 160 MHz high). The second Spatial Reuse field in the Common Information field can be configured by comparing the Spatial Reuse value of the second low 40 MHz of the 160 MHz Primary (or 160 MHz Low) and the Spatial Reuse value of the second 40 MHz Low of the 160 MHz Secondary (or 160 MHz High). The third Spatial Reuse field in the Common Information field can be configured by comparing the Spatial Reuse value of the second 40 MHz high to the 160 MHz Primary (or low 160 MHz) and the Reuse value 111 Spatial Reuse of the second 40 MHz high of the 160 MHz Secondary (or 160 MHz). The fourth Spatial Reuse field in the Common Information field can be configured by comparing the highest 40 MHz Spatial Reuse value of the 160 MHz Primary (or 160 MHz low) and the highest 40 MHz Spatial Reuse value of the 160 MHz Secondary (or 160 MHz high).

[308] The four Spatial Reuse fields in the Common Information field can be configured as follows, according to the BW (160 MHz) indicated in the UL BW when the 320 MHz EHT TB PPDU is activated in the UL BW example and UL Bandwidth Extension subfields above. (Even if it is not the above example, if the 320 MHz EHT TB PPDU is activated, the BW indicated in the UL BW is 160 MHz.) It is assumed that the transmission BW of the activation frame is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. The configuration of the two Spatial Reuse fields in the EHT Common Information field is described in Appendix 3 and can be configured using them. That is, when a 320 MHz EHT TB PPDU is activated, two Spatial Reuse fields in the EHT Common Information field are each set to a Spatial Reuse value corresponding to 160 MHz.When copying the higher or lower value between the two Reuse fields q LOzcn / eznz / q / YiAi. 112 In the EHT Common Information field, the corresponding Spatial Reuse values ​​can be set identically to the four fields in the Common Information field. Furthermore, to correct the value according to the bandwidth difference (or normalization difference), a specific dBm value can be added to or subtracted from the corresponding value, and then changed to a value corresponding to the maximum dBm value that is less than or equal to this value (all four values ​​are set the same). In this case, it may be convenient to compensate by subtracting 12 dB (or 201 log₂) in particular. However, if the values ​​of the two Spatial Reuse fields in the EHT Common Information field are normalized to a 20 MHz channel, and the values ​​of the four Spatial Reuse fields in the Common Information field simply represent values ​​normalized to the corresponding channel, 40 MHz, it may be desirable to correct by adding 6 dB (or 20 log₂).

[309] The four Spatial Reuse fields in the Common Information field can be configured as follows when a 160 MHz EHT TB PPDU is activated with a UL BW and UL Bandwidth Extension subfield configuration, and the BW indicated in UL BW is 80 MHz. The Activation Frame transmission BW is assumed to be different from that of the EHT TB PPDU and is transmitted below 80 MHz. MHz. As with 80 MHz in Appendix 1 described q LOzcn / eznz / q / YiAi 113 further on, four Spatial Reuse fields can be configured in the Common Information field. However, 80 MHz can be 80 MHz including a channel through which an activation frame is transmitted. Essentially, this value might be unrelated to the Spatial Reuse field configuration in U-SIG when transmitting the EHT TB PPDU, but the U-SIG Spatial Reuse field for the EHT TB PPDU can be configured using these four Spatial Reuse fields in the Common Information field. For example, the U-SIG Spatial Reuse field for the EHT TB PPDU corresponding to 80 MHz, indicated by the values ​​of the four Spatial Reuse fields in the Common Information field, can be set to any one of the four values. For example, it can be set to the largest or smallest value.In this case, a field corresponding to 80 MHz indicated by values ​​of 4 Spatial Reuse fields in the Common Information field between 2 Spatial Reuse fields in the Common Information field of EHT can be set in the same way (i.e., it can be set to one of the four values ​​of the Spatial Reuse field, for example, the highest or lowest value can be set, this value can be used to set the Spatial Reuse field corresponding to the 80 MHz q LOzcn / eznz / q / YiAi. 114 corresponding in the EHT TB PPDU U-SIG) or be reserved. Between the two Spatial Reuse fields in the EHT Common Information field, the fields corresponding to 80 MHz other than the 80 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field can be set to appreciated Spatial Reuse values. This value can be used to set fields corresponding to 80 MHz other than the 80 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field between the Spatial Reuse fields in the EHT TB PPDU U-SIG.

[310] The four Spatial Reuse fields in the Common Information field can be configured as follows when a 160 MHz EHT TB PPDU is activated and the bandwidth indicated in the UL BW is 80 MHz, using the UL BW and UL Bandwidth Extension subfield settings. It is assumed that the Activation Frame transmission bandwidth is different from that of the EHT TB PPDU and is transmitted below 80 MHz. The configuration of the two Spatial Reuse fields in the EHT Common Information field is described in Appendix 3 and can be configured using these fields. That is, when a 160 MHz EHT TB PPDU is activated, two Spatial Reuse fields in the EHT Common Information field are set to values ​​of Reuti1 i ration q LOzcn / eznz / q / YiAi 115 Spatial values ​​corresponding to 80 MHz respectively—Between the two Spatial Reuse fields in the EHT Common Information field, the values ​​corresponding to 80 MHz, including the channel through which the activation frame is transmitted, can be copied, and the corresponding values ​​can be set identically to the four fields in the Common Information field. Furthermore, to correct the value according to the bandwidth difference (or normalization difference), a specific dBm value (dBm value) can be added to or subtracted from the corresponding value, and then changed to a value corresponding to the maximum dBm value that is less than or equal to this value. (The four values ​​can be set in the same way.) In this case, it may be convenient to compensate by subtracting 12 dB (or 20104) in particular.

[311] The four Spatial Reuse fields in the Common Information field can be configured as follows when a 160 MHz EHT TB PERU is activated and the bandwidth indicated in the UL BW is 80 MHz, with the UL BW and UL Bandwidth Extension subfields configured. It is assumed that the activation frame's transmission bandwidth is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. Similar to the 80 MHz setting in Appendix 1 described later, four Spatial Reuse fields can be configured in the Common Information field. q LOzcn / eznz / q / YiAi 116 However, 80 MHz can be one of 80 MHz Primary and 80 MHz Secondary (or 80 MHz Low and 80 MHz High). For example, it can simply be 80 MHz Primary. Alternatively, each Spatial Reuse value of 80 MHz Primary and 80 MHz Secondary (or 80 MHz Low and 80 MHz High) can be set to a Spatial Reuse value of 80 MHz with a higher or lower value. Alternatively, it can be set to a Spatial Reuse value of 80 MHz with a value lower or higher between the minimum or maximum value of the four Spatial Reuse values ​​of 20 MHz within the Primary 80 MHz (or low 80 MHz) and the minimum or maximum value of the four Spatial Reuse values ​​of 20 MHz within the Secondary 80 MHz (or high 80 MHz).Basically, this value might be unrelated to the Spatial Reuse field configuration in U-SIG when transmitting the EHT TB PPDU, but the U-SIG Spatial Reuse field of the EHT TB PPDU can be configured using four Spatial Reuse fields in the Common Information field. For example, the U-SIG Spatial Reuse field of the EHT TB PPDU corresponding to 80 MHz, indicated by the values ​​of the four Spatial Reuse fields in the Common Information field, can be set to one of the four Spatial Reuse values ​​in the Common Information field. For example, it can be set to the largest value or the value greater than q LOzcn / eznz / q / YiAi. 117 small. In this case, a field corresponding to 80 MHz indicated by the values ​​of 4 Spatial Reuse fields in the Common Information field between 2 Spatial Reuse fields in the EHT Common Information field can be set identically (i.e., it can be set to one of the four Spatial Reuse field values. For example, it can be set to the largest or smallest value. This value corresponds to the corresponding 80 MHz Spatial Reuse field in the EHT TB PPDU U-SIG. It can be used for configurations) or reserved.Between the two Spatial Reuse fields in the EHT Common Information field, the fields corresponding to 80 MHz other than 80 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field can be set to appropriate Spatial Reuse values. This value can be used to set fields corresponding to 80 MHz other than the 80 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field between the Spatial Reuse fields in the EHT TB PPDU U-SIG.

[312] The 4 Spatial Reuse fields in the Common Information field can be configured as follows as another example when a 160MHz EHT TB PPDU is activated with a UL BW and Extension q LOzcn / eznz / q / YiAi subfield configuration 118 UL Bandwidth and the BW indicated in UL BW is 80 MHz. It is assumed that the transmission BW of the trigger frame is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. There are four Spatial Reuse values ​​of 20 MHz, each within 80 MHz Primary and 80 MHz Secondary (or 80 MHz Low and 80 MHz High). The Spatial Reuse value can be set higher or lower by comparing the Spatial Reuse value of 20 MHz at the same location within two 80 MHz. That is, the first Spatial Reuse field in the Common Information field can be configured by comparing the lowest 20 MHz Spatial Reuse value of Primary 80 MHz (or 80 MHz low) and the lowest 20 MHz Spatial Reuse value of Secondary 80 MHz (or 80 MHz high).The second Spatial Reuse field in the Common Information field can be set by comparing the second low Spatial Reuse value of 20 MHz from the Primary 80 MHz (or 80 MHz low) and the second low Spatial Reuse value of 20 MHz from the Secondary 80 MHz (or 80 MHz high). The third Spatial Reuse field in the Common Information field can be set by comparing the second high Spatial Reuse value of 20 MHz from the Primary 80 MHz (or 80 MHz low) and the second high Spatial Reuse value of 20 MHz from the Secondary 80 MHz (or 80 MHz high). The fourth field of Space Reuse in the field of q LOzcn / eznz / q / YiAi 119 Common Information can be configured by comparing the highest 20 MHz Spatial Reuse value of 80 MHz Primary (or 80 MHz low) and the 20 MHz Spatial Reuse value MHz higher than 80 MHz Secondary (or 80 MHz high).

[313] The four Spatial Reuse fields in the Common Information field can be configured as follows, as another example, when a 160 MHz EHT TB PPDU is activated with a UL BW and UL Bandwidth Extension subfield configuration, and the BW specified in UL BW is 80 MHz. It is assumed that the transmission BW of the activation frame is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. The configuration of the two Spatial Reuse fields in the EHT Common Information field is described in Appendix 3 and can be configured using them. That is, when a 160 MHz EHT TB PPDU is activated, two Spatial Reuse fields in the EHT Common Information field are set to Spatial Reuse values ​​corresponding to 80 MHz respectively.By copying the higher or lower value between the two Spatial Reuse fields into the EHT Common Information field, the corresponding values ​​can be set identically to the four fields in the Common Information field. Additionally, to correct the value according to the bandwidth difference (or normalization difference), one can add or subtract a q LOzcn / eznz / q / YiAi. 120 dBm value specific to the meaning (dBm value) of the corresponding value, and then change to a value corresponding to the maximum dBm value that is less than or equal to this value. (All four values ​​can be set in the same way.) In this case, it may be convenient to compensate by subtracting 12 dB (or 20 log₂) in particular. However, if the values ​​of the 2 Spatial Reuse fields in the EHT Common Information field are normalized to a 20 MHz channel and the values ​​of the 4 Spatial Reuse fields in the Common Information field are simply normalized to the corresponding channel, 40 MHz, it may be desirable to correct by adding 6 dB (or 20 log₂).

[314] The four Spatial Reuse fields in the Common Information field can be configured as follows when a 320 MHz EHT TB PPDU is activated and the bandwidth specified in the UL BW is 80 MHz, with the UL BW and UL Bandwidth Extension subfields configured. The Activation Frame transmission bandwidth is assumed to be different from that of the EHT TB PPDU and is transmitted below 80 MHz. Similar to the 80 MHz in Appendix 1 described later, four Spatial Reuse fields can be configured in the Common Information field. However, 80 MHz can be 80 MHz including a channel through which an activation frame is transmitted.

[315] The four Space Reuse fields in the q LOzcn / eznz / q / YiAi The Common Information field 121 can be configured as follows when a 320 MHz EHT TB PPDU is activated and the bandwidth specified in the UD BW is 80 MHz, with the UL BW and UL Bandwidth Extension subfields configured. It is assumed that the activation frame's transmission bandwidth is different from that of the EHT TB PPDU and is transmitted between 80 MHz and 160 MHz. Similar to 80 MHz in Appendix 1, described later, four Spatial Reuse fields can be configured in the Common Information field. However, 80 MHz can be one of two 80 MHz channels within a 160 MHz channel that includes a channel through which an activation frame is transmitted. Alternatively, each Spatial Reuse value of two 80 MHz channels in a 160 MHz channel that includes a channel through which an activation frame is transmitted can be set to a Spatial Reuse value of 80 MHz higher or lower.Alternatively, it can be set to a Spatial Reuse value of 80 MHz, with a value less than or greater than the minimum or maximum of the four 20 MHz Spatial Reuse values ​​within the first 80 MHz and the minimum or maximum of the four 20 MHz Spatial Reuse values ​​within the second 80 MHz of the 160 MHz channel, including the channel through which the Activation Frame is transmitted. Essentially, this value can be completely unrelated to the configuration. The Spatial Reuse field in U-SIG for the EHT TB PPDU, when transmitting the signal, can be configured using four Spatial Reuse fields in the Common Information field. For example, the Spatial Reuse field in U-SIG for the EHT TB PPDU corresponding to 160 MHz, to which the 80 MHz indicated by the values ​​of the four Spatial Reuse fields in the Common Information field belong, can be set to one of the four Spatial Reuse values ​​in the Common Information field. For example, it can be set to the largest or smallest value.In this case, a field corresponding to 160 MHz, to which 80 MHz belong (indicated by values ​​from four Spatial Reuse fields in the Common Information field between two Spatial Reuse fields in the EHT Common Information field), can be set in the same way (i.e., it can be set to one of the four Spatial Reuse field values. For example, it can be set to the largest or smallest value. This value can be used to set the Spatial Reuse field corresponding to the corresponding 160 MHz in the EHT TB PPDU U-SIG) or reserved. Between the two Spatial Reuse fields in the EHT Common Information field, the fields corresponding to 160 MHz other than 160 MHz to which the 80 MHz belong are: q LOzcn / eznz / q / YiAi. 123 indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field can be set to appropriate Spatial Reuse values, this value can be used to set fields corresponding to 160 MHz other than 160 MHz to which 80 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field belong.

[316] Four Spatial Reuse fields in the Common Information field are configured as UL BW and UL Bandwidth Extension subfields, and, as another example, when a 320 MHz EHT TB PPDU is activated and the BW indicated in UL BW is 80 MHz, it can be set as follows. The transmission BW of the activation frame is assumed to be different from that of the EHT TB PPDU and is transmitted between 80 MHz and 160 MHz. There are four Spatial Reuse values ​​of 20 MHz in the first 80 MHz and the second 80 MHz of the 160 MHz channel that includes the channel through which the Activation Frame is transmitted. The Spatial Reuse value can be set higher or lower by comparing the Spatial Reuse value of 20 MHz at the same location within two 80 MHz ranges. In other words, the first Spatial Reuse field in the Common Information field can be configured by comparing the Spatial Reuse value of 20 MHz at the same location within two 80 MHz ranges. 124 The lowest 20 MHz Spatial Reuse value of the first 80 MHz and the lowest 20 MHz Spatial Reuse value of the second 80 MHz between the 160 MHz channels, including the channel through which the Activation Frame is transmitted. The second Spatial Reuse field in the Common Information field can be configured by comparing the second low Spatial Reuse value of 20 MHz from the first 80 MHz of the 160 MHz channel, including the channel through which the Activation Frame is transmitted, and the second low Spatial Reuse value of 20 MHz from the second 80 MHz. The third Spatial Reuse field in the Common Information field can be configured by comparing the second high Spatial Reuse value of 20 MHz from the first 80 MHz and the second high Spatial Reuse value of 20 MHz from the second 80 MHz between the 160 MHz channels, including the channel through which the Activation Frame is transmitted.The fourth Spatial Reuse field in the Common Information field can be configured by comparing the highest 20 MHz Spatial Reuse value from the first 80 MHz and the highest 20 MHz Spatial Reuse value from the second 80 MHz across the 160 MHz channels, including the channel through which the Activation Frame is transmitted. Essentially, this value can be completely unrelated to the configuration of the q field LOzcn / eznz / q / YiAi. 125 Spatial Reuse in U-SIG when transmitting the EHT TB PPDU, but the Spatial Reuse field in U-SIG of the EHT TB PPDU can be configured using 4 Spatial Reuse fields in the Common Information field. For example, the Spatial Reuse field in U-SIG of the EHT TB PPDU corresponding to 160 MHz, to which the 80 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field belong, can be set to one of the 4 Spatial Reuse values ​​in the Common Information field. For example, it can be set to the largest or smallest value.In this case, a field corresponding to 160 MHz, to which 80 MHz belong (indicated by values ​​from four Spatial Reuse fields in the Common Information field between two Spatial Reuse fields in the EHT Common Information field), can be set in the same way (i.e., it can be set to one of the four Spatial Reuse field values. For example, it can be set to the largest or smallest value. This value can be used to set the Spatial Reuse field corresponding to the corresponding 160 MHz in the EHT TB PPDU U-SIG) or reserved. Between the two Spatial Reuse fields in the EHT Common Information field, the fields corresponding to 160 MHz other than 160 MHz to which the 80 MHz belong are: q LOzcn / eznz / q / YiAi. The 126 values ​​indicated by the Spatial Reuse values ​​in the Common Information field can be set to the appropriate Spatial Reuse values, and these values ​​can be used to set 160 MHz corresponding fields other than the 160 MHz to which the 80 MHz values ​​indicated by the Spatial Reuse values ​​in the Common Information field belong.

[317] The four Spatial Reuse fields in the Common Information field can be configured as follows when a 320 MHz EHT TB PPDU is activated and the bandwidth indicated in the UL BW is 80 MHz, using the UL BW and UL Bandwidth Extension subfields. It is assumed that the transmission bandwidth of the activation frame is different from that of the EHT TB PPDU and is transmitted below 160 MHz. The configuration of the two Spatial Reuse fields in the EHT Common Information field is described in Appendix 3 and can be configured using them. That is, when a 320 MHz EHT TB PPDU is activated, two Spatial Reuse fields in the EHT Common Information field are set to Spatial Reuse values ​​corresponding to 160 MHz respectively. Between the 2 fields of Spatial Reuse in the Information field q LOzcn / eznz / q / YiAi 127 The EHT Common value corresponding to 160 MHz, including the channel through which the activation frame is transmitted, can be copied, and the corresponding values ​​can be set identically to the four fields in the Common Information field. (Four Spatial Reuse fields represent 80 MHz, each corresponding to 20 MHz, and a Spatial Reuse value of 160 MHz can be set as is.) Furthermore, to correct the value according to the bandwidth difference (or normalization difference), a specific dBm value can be added to or subtracted from the corresponding value, and then changed to a value corresponding to the maximum dBm value that is less than or equal to this value. (Four values ​​matched.) In this case, it may be convenient to compensate by subtracting 18 dB (or 20108) in particular.

[318] The four Spatial Reuse fields in the Common Information field can be configured as follows when a 320 MHz EHT TB PPDU is activated and the bandwidth specified in the UL BW is 80 MHz, using the UL BW and UL Bandwidth Extension subfield settings. It is assumed that the activation frame's transmission bandwidth is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. Similar to the 80 MHz setting in Appendix 1 described later, four Spatial Reuse fields can be configured in the q field LOzcn / eznz / q / YiAi 128 Common Information. However, 80 MHz can be one of the two 80 MHz values ​​(or the lower 80 MHz and the second lower 80 MHz and second higher 80 MHz and 80 MHz higher) of 80 MHz Primary, 80 MHz Secondary, and 160 MHz Secondary. For example, it can simply be 80 MHz Primary. Or each Space Reuse value can be set to a Space Reuse value of 80 MHz that is higher or lower than any two 80 MHz values ​​of 80 MHz Primary, 80 MHz Secondary, and 160 MHz Secondary, or the lower 80 MHz and second lower 80 MHz and second higher 80 MHz and 80 MHz higher.Or it can be set to a Spatial Reuse value of 80 MHz with a value less than or greater than the minimum or maximum of the four Spatial Reuse values ​​of 20 MHz within the high 80 MHz (or the highest 80 MHz) between the minimum or maximum of four Spatial Reuse values ​​of 20 MHz within the Primary 80 MHz (or the lowest 80 MHz) and the minimum or maximum of four Spatial Reuse values ​​of 20 MHz within the Secondary 80 MHz (or the second lowest 80 MHz) and the lowest 80 MHz (or the second lowest 80 MHz) of the 160 MHz Secondary higher) of the minimum or maximum of the four Spatial Reuse values ​​of 20 MHz and the 160 MHz Secondary. Basically, this can be a value that has nothing to do with the configuration of the Spatial Reuse field in U-SIG when transmitting the EHT TB PPDU, q LOzcn / eznz / q / YiAi. 129 However, the Spatial Reuse field in the EHT TB PPDU U-SIG can be configured using four Spatial Reuse fields in the Common Information field. For example, the Spatial Reuse field in the EHT TB PPDU U-SIG corresponding to 160 MHz, to which the 80 MHz indicated by the values ​​of the four Spatial Reuse fields in the Common Information field belong, can be set to one of the four Spatial Reuse fields in the Common Information field. For example, it can be set to the largest or smallest value. In this case, a field corresponding to 160 MHz to which 80 MHz belong, indicated by values ​​of 4 Spatial Reuse fields in the Common Information field between 2 Spatial Reuse fields in the Common Information field of EHT, can be set in the same way (i.e., it can be set to one of the four values ​​of the Spatial Reuse field).For example, it can be set to the largest or smallest value. This value can be used to configure the Spatial Reuse field corresponding to the 160 MHz in the EHT U-SIG (TB PPDU) or reserved. Between the two Spatial Reuse fields in the EHT Common Information field, the fields corresponding to 160 MHz that are not 160 MHz belong to the 80 MHz indicated by the values ​​of the 4 Reuse fields q LOzcn / eznz / q / YiAi. 130 Spatial in the Common Information field can be set to the appropriate Spatial Reuse values; this value can be used to set fields corresponding to 160 MHz other than 160 MHz to which 80 MHz indicated by the values ​​of the 4 Spatial Reuse fields in the Common Information field among the Spatial Reuse fields in the U-SIG of the EHT TB PE'DU belong.

[319] Four Spatial Reuse fields in the Common Information field are configured as UL BW and UL Bandwidth Extension subfields, and, as another example, when a 320 MHz EHT TB PPDU is activated and the BW indicated in UL BW is 80 MHz, it can be set as follows. It is assumed that the transmission BW of the activation frame is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. There are four Spatial Reuse values ​​of 20 MHz within each of the two 80 MHz (or the lower 80 MHz and the second lower 80 MHz and the second higher 80 MHz and the higher 80 MHz) of 80 MHz Primary, 80 MHz Secondary, and 160 MHz Secondary. The Spatial Reuse value can be set to a higher or lower value by comparing the Spatial Reuse value of 20 MHz at the same location within four 80 MHz.That is, the first Spatial Reuse field in the Common Information field can be configured by comparing the value q LOzcn / eznz / q / YiAi. 131 of 20 MHz lower Space Reuse of the lower 80 MHz (or the second highest 80 MHz) and the 20 MHz lower Space Reuse value of the upper 80 MHz (or the highest 80 MHz) of the Secondary 160 MHz between the 20 MHz lower Space Reuse value of the Primary 80 MHz (or the lowest 80 MHz), the 20 MHz lower Space Reuse value of the Secondary 80 MHz (or the second lowest 80 MHz) and the Secondary 160 MHz.The second Space Reuse field in the Common Information field can be configured by comparing the second lowest Space Reuse value of 20 MHz from the low 80 MHz (or the second highest value of 80 MHz) and the second lowest Space Reuse value of 20 MHz from the high 80 MHz (or the highest 80 MHz) of the Secondary 160 MHz between the second lowest Space Reuse value of 20 MHz from the Primary 80 MHz (or the lowest 80 MHz) and the second lowest Space Reuse value of 20 MHz from the Secondary 80 MHz (or the second lowest value of 80 MHz) and Secondary 160 MHz.The third Spatial Reuse field in the Common Information field can be configured by comparing the Spatial Reuse value of the second high 20 MHz of the low 80 MHz (or the second highest 80 MHz) and the Spatial Reuse of the second high 20 MHz of the highest 80 MHz (or the 80 MHz highest) of the Secondary 160 MHz between the second q LOzcn / eznz / q / YiAi. 132 highest Spatial Reuse value of 20 MHz from the Primary 80 MHz (or the lowest 80 MHz) and the second highest Spatial Reuse value of 20 MHz from the Secondary 80 MHz (or the second lowest 80 MHz) and 160 MHz Secondary. The fourth Spatial Reuse field in the Common Information field can be configured by comparing the highest Spatial Reuse value of 20 MHz from the low 80 MHz (or the second highest value of 80 MHz) and the highest Spatial Reuse value of 20 MHz from the high 80 MHz (or the highest 80 MHz) of the Secondary 160 MHz between the highest Spatial Reuse value of 20 MHz from the Primary 80 MHz (or the lowest 80 MHz) and the highest Spatial Reuse value of 20 MHz from the Secondary 80 MHz (or the second lowest 80 MHz) and the Secondary 160 MHz.

[320] Four Spatial Reuse fields in the Common Information field are configured as UL BW and UL Bandwidth Extension subfields. As another example, when a 320 MHz EHT TB PPE>U is triggered and the BW specified in UL BW is 80 MHz, it can be set as follows. It is assumed that the transmission BW of the trigger frame is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. The configuration of the two Spatial Reuse fields in the EHT Common Information field is described in Appendix 3 and can be configured using q LOzcn / eznz / q / YiAi 133. By making use of them. That is, when a 320 MHz EHT TB PPDU is activated, two Spatial Reuse fields in the EHT Common Information field are each set to a Spatial Reuse value corresponding to 160 MHz. By copying the higher or lower value from the two Spatial Reuse fields into the EHT Common Information field, the corresponding values ​​can be set identically to the four fields in the Common Information field. (Four Spatial Reuse fields represent 80 MHz, each corresponding to 20 MHz, and a Spatial Reuse value of 160 MHz can be set as is.) Furthermore, to correct the value according to the BW difference (or normalization difference), a specific dBm value of the meaning (dBm value) can be added or subtracted from the corresponding value, and then changed to a value corresponding to the maximum dBm value that is less than or equal to this value.(All four values ​​can be configured in the same way). In this case, it may be particularly desirable to correct by subtracting 18 dB (20 log 8).

[321] The 4 Spatial Reuse fields in the Common Information field consist of UL BW and UL Bandwidth Extension subfields. If EHT TB PPDU is enabled and the BW indicated in UL BW is 160 MHz (or 2+W MHz, where W is 80, 40 or 20), it can be configured as follows. 4 Spatial Reuse fields q LOzcn / eznz / q / YiAi. The value 134 in the Common Information field can be set to 160 MHz (or 2+W MHz, where W is 80, 40, or 20) in Appendix 1, which is described later. However, the actual Space Reuse value can only be set for the 80 MHz (or W MHz, where W is 80, 40, or 20) where the actual EHT TB PPDU is transmitted. For other 80 MHz (or W MHz, where W is 80, 40, or 20), any Space Reuse value can be set. However, since this is a portion where the actual signals are not transmitted, it may be convenient to set it to a large Space Reuse value. Basically, this may be a value that has nothing to do with the configuration of the Spatial Reuse field in U-SIG when transmitting the EHT TB PPDU, but the Spatial Reuse field in U-SIG of the EHT TB PPDU can be configured using 4 Spatial Reuse fields in the Common Information field.For example, among the values ​​of the four Spatial Reuse fields in the Common Information field, two of 40 MHz (or two W / 2 MHz for W can be set to 80 or 40, and one of 20 MHz for W can be set to 20) Spatial Reuse value. In this case, two Spatial Reuse fields in the EHT Common Information field can also be set identically (i.e., two 40 MHz (or two W / 2 MHz for W) corresponding to 80 MHz (or W MHz, W is 80, 40 or 20) used for EHT TB PPDU transmission among the values ​​of the q LOzcn / eznz / q / YiAi. 135 four fields of Spatial Reuse 1 i ration 80 or 40, one of 20 MHz for W can be set using the 20) Spatial Reuse value. This value can be used to configure the U-SIG Spatial Reuse field of the EHT TB PPDU) or reserved.

[322] The four Spatial Reuse fields in the Common Information field consist of the UL BW and UL Bandwidth Extension subfields. If the EHT TB PPDU is activated and the BW indicated in UL BW is 160 MHz (or 2*W MHz, where W is 80, 40, or 20), another example can be set up as follows. It is assumed that the transmission BW of the activation frame is the same as that of the EHT TB PPDU and that it is transmitted over the same channel. The configuration of the two Spatial Reuse fields in the EHT Common Information field is described in Appendix 3 and can be configured using them. That is, when the 80 MHz EHT TB PPDU is activated, the two Spatial Reuse fields in the Common Information field of q LOzcn / eznz / q / YiAi EHT values ​​are set to Spatial Reuse values ​​corresponding to each 40 MHz interval. These values ​​can be copied and set as they are in the corresponding 40 MHz field among the four Spatial Reuse fields in the Common Information field. For example, if the 80 MHz EHT TB PPDU corresponds to the lowest frequency of the 160 MHz channel, the value of the first field of the two fields of 136 The Spatial Reuse field in the EHT Common Information field can be copied to the first value of the four Spatial Reuse fields in the Common Information field, and the second value of the two Spatial Reuse fields in the EHT Common Information field can be copied to the second value of the four Spatial Reuse fields in the Common Information field. If the 80 MHz EHT TB PPDU corresponds to the 160 MHz channel high frequency, the first value of the two Spatial Reuse fields in the EHT Common Information field can be copied to the third value of the four Spatial Reuse fields in the Common Information field. The information field and the second value of the two Spatial Reuse fields in the EHT Common Information field can be copied to the fourth value of the four Spatial Reuse fields in the Common Information field.Among the four non-applicable Spatial Reuse fields in the Common Information field, the values ​​of the two non-applicable Spatial Reuse fields can be set to specific values ​​(preferably a high value), and to facilitate implementation, the values ​​of the two non-applicable Spatial Reuse fields in the EHT Common Information field can be used. In other words, the value of the first field among the two non-applicable Spatial Reuse fields q LOzcn / eznz / q / YiAi. 137 in the Common Information field of EHT can be copied to the first and third value of the 4 Spatial Reuse fields in the Common Information field, and the value of the second field between the two Spatial Reuse fields in the Common Information field of EHT can be copied to the second and fourth value between the four Spatial Reuse fields in the Common Information field.

[323] Alternatively, the four Spatial Reuse fields in the Common Information field can be configured simply according to the bandwidth (EHT TB PPDU bandwidth) indicated in the UL bandwidth and UL bandwidth extension subfields for spatial reuse of EHT STAs. This can be used to configure the Spatial Reuse field in U-GIS when transmitting EHT TB PPDUs. That is, as shown in Appendix 2 described below, four Spatial Reuse fields can be set in the Common Information field, and the field can be configured accordingly. Spatial Reuse in the EHT TB PPDU U-SIG. In this case, the two Spatial Reuse fields in the EHT Common Information field are configured identically (i.e., the method for configuring the Spatial Reuse field in the EHT TB PPDU U-SIG in Appendix 2 is equivalent to the configuration of the two Spatial Reuse fields in the EHT Common Information field). This value can be used to configure the q LOzcn / eznz / q / YiAi 138 Space Reuse field in the EHT TB PPDU U-SIG) or can be reserved.

[324] The four Spatial Reuse fields in the Common Information field can be set to a value (0) that does not allow spatial reuse or a value (15) that prohibits spatial reuse regardless of the bandwidth of the EHT TB PPDU simply activated or the bandwidth indicated in UD BW. The reason is that for OBSS HE STA to perform spatial reuse, it is impossible to obtain BSS color information from the EHT TB PPDU in terms of the 802.11a specification. In the SR value, PSR_Disallow (value = 0) disables SR, but OBSS PD (preamble detection) is available. PSR_AND_NON_SRG_OBSS_PD_PROHIBITED (value = 15) disables not only SR but also OBSS PD. The dB value can be defined the same as the existing 802.11a specification (see Table 3).

[325] The two Spatial Reuse fields in the EHT Common Information field can be configured according to the bandwidth (EHT TB PPDU bandwidth) indicated in the UL bandwidth and bandwidth extension subfields of UL, in addition to the configuration method suggested above. This can be used to configure the Spatial Reuse field in U-GIS when transmitting EHT TB PPDU. That is, as shown in Appendix 3 described below, two Spatial Reuse fields can be set in the q field LOzcn / eznz / q / YiAi 139 of EHT Common Information and a Spatial Reuse 1 field can be configured in the EHT TB PPDU U-GIS.

[326] 3.3. When activating TB A-PPDU

[327] Figure 21 shows an example of TB A-PPDU transmission.

[328] A TB A-PPDU (activation-based aggregated PPDU) is a PPDU in which an EHT TB PPDU and a HE TB PPDU are transmitted simultaneously by means of an activation frame. As shown in Figure 21, the activation frame can activate both EHT TB PPDUs and HE TB PPDUs, and the TB A-PPDU can be transmitted simultaneously by a STA by adding EHT TB PPDUs and HE TB PPDUs. Alternatively, the TB A-PPDU can be an aggregate of the EHT TB PPDU and the HE TB PPDU, and either the EHT TB PPDU or the HE TB PPDU can be transmitted by a plurality of STAs.

[329] As described above, in the activation frame that activates the TB A-PPDU, there can be 4 Spatial Reuse fields for the HE TB PPDU and 2 Spatial Reuse fields for the EHT TB PPDU. The four Spatial Reuse fields can be set to a value for the bandwidth of the HE TB PPDU only (i.e., considering only the bandwidth through which the HE TB PPDU is transmitted, independent of the total bandwidth of the TB A-PPDU). The two Spatial Reuse fields can be set to a value that considers the bandwidth of the HE TB PPDU. 140 bandwidth only from the EHT TB PPDU or the full bandwidth annex.

[330] Four Spatial Reuse fields in the Common Information field can be configured as the existing 802.11ax activation frame according to the bandwidth (HE TB Sub-PPDU bandwidth) indicated in the UL bandwidth. This can be used to configure the Spatial Reuse field in HE-SIG-A when transmitting HE TB PPDUs. That is, as shown in Appendix 1 described below, four Spatial Reuse fields can be set in the Common Information field, and one Spatial Reuse field can be configured in the HE TB Sub-PPDU.

[331] Two Spatial Reuse fields can be configured in the EHT Common Information field according to the BW (EHT TB Sub-PPDU BW or A-PPDU BW) indicated in the UL BW and UL BW Extension subfields. This can be used to configure the Spatial Reuse field in U-GIS when transmitting EHT TB PPDU. That is, as shown in Appendix 3 described below, two Spatial Reuse fields can be configured in the EHT Common Information field, and the Spatial Reuse field in U-GIS can be configured for EHT TB Sub-PPDU. It may be preferable to set it to the Spatial Reuse value of the indicated BW.

[332] Alternatively, two fields are used 141 Spatial Reuse in the EHT Common Information field, when the bandwidth indicated in the UL BW and UL BW Extension subfields is the EHT TB Sub-PPDU bandwidth, is not set according to the corresponding bandwidth, but can be configured according to the entire bandwidth of the A-PPDU. This can be used to configure the Spatial Reuse field in U-SIG when transmitting EHT TB Sub-PPDUs. That is, as shown in Appendix 3, described later, two Spatial Reuse fields can be set in the EHT Common Information field, and one Spatial Reuse field can be configured in U-SIG for the EHT TB Sub-PPDU. This can be desirable because it is a Spatial Reuse value that considers the bandwidth of all APPDUs actually transmitted, but problems can arise depending on the bandwidth indicator value of the TB BBDU.

[333] Alternatively, two Spatial Reuse fields are used in the EHT Common Information field when the BW indicated in the UL BW and UL BW Extension subfields is A-PPDU BW. It is not configured according to the corresponding BW, but can be configured according to the EHT TB Sub-PPDU BW. This can be used to configure the Spatial Reuse field in U-SIG when transmitting EHT TB Sub-PPDU. That is, as shown in Appendix 3 described below, two Spatial Reuse fields can be set in the Common Information field of q LOzcn / eznz / q / YiAi 142 EHT and a Spatial Reuse field can be configured in the U-SIG of the Sub-EHT TB PPDU. This Spatial Reuse value considers only the BW of the Sub-EHT TB PPDU. It has a small resolution and can be good for performance. However, problems can occur depending on the BW indicator value of the TB PPDU.

[334] In all the previous proposals, when setting the Spatial Reuse field by comparing several Spatial Reuse values, it may be convenient to set it to a small value. The reason for this is that if the Spatial Reuse value is set to a high value, the adjacent OBSS transmits at high power, generating interference with a power higher than the allowable interference power.

[335] In all the above proposals, if a specific Spatial Reuse value is copied and set to a specific Spatial Reuse value, if there is a difference in BW, the meaning (dBm value) is determined by adding or subtracting a specific dBm value, and then changing it to a value that corresponds to the maximum dBm value that is less than or equal to this value. Even if different Spatial Reuse fields have values ​​corresponding to different channel sizes, if normalization is applied to the same channel size, no further corrections are required when copying and setting. q LOzcn / eznz / q / YiAi 143

[336] In Appendices 1, 2, and 3 described below, regardless of the channel size to which each Spatial Reuse value corresponds, the value can be normalized to a 20 MHz channel. For example, the Spatial Reuse value corresponding to 40 MHz can be normalized to 20 MHz by subtracting 6 (or 20 log2) from the corresponding PSR value (in dBm, i.e., the value calculated on the basis of 40 MHz) before normalization, and then converted to the corresponding Spatial Reuse value. As another example, the Spatial Reuse value corresponding to 80 MHz is normalized to 20 MHz by subtracting 12 (or 20 log4) from the corresponding PSR value (in dBm, i.e., the value calculated on the basis of 80 MHz) before normalization, and then set to the corresponding Spatial Reuse value.As another example, the Spatial Reuse value corresponding to 160 MHz is normalized to 20 MHz by subtracting 18 (or 20 log8) from the corresponding PSR value (in dBm, i.e., the value calculated based on 160 MHz) before normalization, and can then be set to the corresponding Spatial Reuse value.

[337] Appendix 1>

[338] - 4 Space Reuse fields in the field of Activation Plot Comfin Information

[339] i) 20 MHz: q LOzcn / eznz / q / YiAi 144

[340] The four space reuse fields can have the same space reuse value and can mean a space reuse value corresponding to a 20 MHz channel.

[341] ii) 40 MHz:

[342] Spatial reuse field 1: this can generally mean a lower subchannel spatial reuse value of 20 MHr.

[343] Spatial Reuse Field 2: This can generally mean a spatial reuse value of a second lower 20 MHr subchannel. In addition, when a 2.4 GHr band TB PPDU is transmitted, it can be set to the same value as Spatial Reuse Field 1. The reason is that, since the 40 MHr channelization overlaps in the 2.4 GHr band, it is impossible to determine which channelization the OBSS STA used that decoded the corresponding TB PPDU on a specific 20 MHz channel, so it is simply set to the same value.

[344] Space reuse field 3 can be set equal to 1 and space reuse field 4 equal to 2.

[345] iii) 80 MHz:

[346] Spatial reuse field 1: This can generally mean a spatial reuse value of the lowest 20 MHz subchannel. Reuse field 1 q LOzcn / eznz / q / YiAi 145 spatial 2: this can generally mean a spatial reuse value of a lower second subchannel of 20 MHz.

[347] Spatial reuse field 3: In general, this may mean a spatial reuse value of a second upper subchannel of 20 MHz.

[348] Spatial reuse field 4: This can generally mean a highest subchannel spatial reuse value of 20 MHz.

[349] iv) 160 MHz:

[350] Spatial reuse field 1: In general, this may mean a lower 40 MHz subchannel spatial reuse value.

[351] Spatial reuse field 2: In general, this may mean a spatial reuse value of a second lower subchannel of 40 MHz.

[352] Spatial reuse field 3: This can generally mean a spatial reuse value of a second upper subchannel of 40 MHz.

[353] Spatial reuse field 4: This can generally mean a higher subchannel spatial reuse value of 40 MHz.

[354] - 4 Spatial Reuse fields in HE-SIG-A of HE TE (Sub-)PPDU

[355] Copy the 4 Space Reuse fields into the q LOzcn / eznz / q / YiAi 146 Previous Activation Plot as they are.

[356] Appendix 2>

[357] - 4 Space Reuse fields in the field of Common Activation Plot Information

[358] i) 20 MHz:

[359] The four spatial reuse subfields can have the same spatial reuse value and can signify a spatial reuse value corresponding to a 20 MHz channel. Alternatively, spatial reuse 3 and 4 can be reserved.

[360] ii) 40 MHz:

[361] Spatial reuse field 1: This can generally mean a spatial reuse value of the lower 20 MHz subchannel.

[362] Spatial Reuse Field 2: This can generally mean a spatial reuse value of a second lower 20 MHz subchannel. Additionally, when a 2.4 GHz band TB PPDU is transmitted, it can be set to the same value as Spatial Reuse Field 1. The reason is that, since the 40 MHz channeling overlaps in the 2.4 GHz band, it is impossible to determine which channeling the OBSS STA used to decode the corresponding TB PPDU on a specific 20 MHz channel, so it is simply set to the same value.

[363] Space reuse field 3 may q LOzcn / eznz / q / YiAi 147 be set equal to 1 and space reuse field 4 equal to 2. Alternatively, space reuse fields 3 and 4 can be reserved.

[364] iii) 80 MHz:

[365] Spatial reuse field 1: In general, this may mean a lower 40 MHz subchannel spatial reuse value.

[366] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 40 MHz.

[367] Space reuse field 3 can be set equal to 1 and space reuse field 4 equal to 2. Alternatively, space reuse 3 and 4 can be reserved.

[368] or

[369] Spatial reuse field 1: This can generally mean a spatial reuse value of the lower 20 MHz subchannel.

[370] Spatial reuse field 2: This can generally mean a spatial reuse value of a lower second subchannel of 20 MHz.

[371] Spatial reuse field 3: In general, this may mean a spatial reuse value of a second upper subchannel of 20 MHz.

[372] Space Reuse Field 4: This q LOzcn / eznz / q / YiAi 148 can generally mean a higher subchannel spatial reuse value of 20 MHz.

[373] iv) 160 MHz:

[374] Spatial reuse field 1: This can generally mean a lower 80 MHz subchannel spatial reuse value.

[375] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 80 MHz.

[376] Space reuse field 3 can be set equal to 1 and space reuse field 4 equal to 2. Alternatively, space reuse 3 and 4 can be reserved.

[377] or

[378] Spatial reuse field 1: In general, this may mean a lower 40 MHz subchannel spatial reuse ratio.

[379] Spatial reuse field 2: In general, this may mean a spatial reuse value of a lower second subchannel of 40 MHz.

[380] Spatial reuse field 3: This can generally mean a spatial reuse value of a second upper subchannel of 40 MHz.

[381] Space reuse field 4: This can generally mean a space reuse value q LOzcn / eznz / q / YiAi 149 of the highest 40 MHz subchannel.

[382] v) 320 MHz:

[383] Spatial reuse field 1: This can generally mean a lower 160 MHz subchannel spatial reuse value.

[384] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 160 MHz.

[385] Space reuse field 3 may be set equal to 1 and space reuse field 4 equal to 2. Alternatively, space reuse fields 3 and 4 may be reserved.

[386] or

[387] Spatial reuse field 1: This can generally mean a lower 80 MHz subchannel spatial reuse value.

[388] Spatial reuse field 2: In general, this may mean a spatial reuse value of a second lower subchannel of 80 MHz.

[389] Spatial reuse field 3: This can generally mean a spatial reuse value of a second upper subchannel of 80 MHz.

[390] Space reuse field 4: This can generally mean a space reuse value q LOzcn / eznz / q / YiAi of the highest 80 MHz subchannel. 150

[391] 2 Spatial Reuse fields in EHT TB U-GIS (Sub-)PPDU

[392] i) 20 MHz:

[393] The two spatial reuse fields can be configured by copying spatial reuse fields 1 and 2 from the activation frame as is. That is, they can have the same spatial reuse value and can represent a spatial reuse value corresponding to a 20 MHz channel.

[394] ii) 40 MHz:

[395] The two space reuse fields can be configured by copying space reuse fields 1 and 2 from the activation frame as is. That is, it can be as follows.

[396] Spatial reuse field 1: This can generally mean a spatial reuse value of the lower 20 MHz subchannel.

[397] Spatial Reuse Field 2: This can generally mean a spatial reuse value of the highest subchannel of 20 MHz. Furthermore, even when the TB PPDU is transmitted in the 2.4 GHz band, it can be set to the same value as spatial reuse field 1. The reason is that, since the 40 MHz channelization overlaps in the 2.4 GHz band, it is impossible to determine which channelization was used by the OBSS STA that q LOzcn / eznz / q / YiAi 151 decoded the corresponding TB PPDU on a specific 20 MHz channel, so it is simply set to the same value.

[398] iii) 80 MHz:

[399] The two space reuse fields can be configured by copying space reuse fields 1 and 2 from the activation frame as follows. That is, it can be as follows.

[400] Spatial reuse field 1: In general, this may mean a lower 40 MHz subchannel spatial reuse value.

[401] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 40 MHz.

[402] O

[403] The two space reuse fields can be configured by copying space reuse fields 1 and 3 from the activation frame as is, or by copying fields 2 and 4 as is. Alternatively, you can select and copy one of the two values ​​in each field as shown below. The selection criterion can be a large or small value.

[404] Spatial reuse field 1: This can generally mean a spatial reuse value of the lowest 20 MHz or second lower subchannel. q LOzcn / eznz / q / YiAi 152

[405] Spatial reuse field 2: This can generally mean a spatial reuse value of the subchannel 20 MHz higher or higher.

[406] or

[407] The two spatial reuse fields can be defined differently for each 40 MHz (i.e., the U-SIG configuration can be different for each 40 MHz). At 40 MHz, spatial reuse fields 3 and 4 of the activation frame can be copied and configured as is. That is, it can be as follows.

[408] Low spatial reuse field 1 to 40 MHz: This can generally mean a lower 20 MHz subchannel spatial reuse value.

[409] Spatial reuse field 2 to 4 0 MHz low: This can generally mean a spatial reuse value of a second low subchannel of 20 MHz.

[410] Spatial reuse field 1 to 40 MHz high: This can generally mean a spatial reuse value of a second high subchannel of 20 MHz.

[411] Spatial reuse field 2 to 4 0 MHz high: This can generally mean a spatial reuse value of the subchannel 20 MHz higher.

[412] iv) 160 MHz:

[413] The two space reuse fields can be configured by copying the space reuse fields 1 q LOzcn / eznz / q / YiAi 153 and 2 of the activation frame as they are. That is, it can be as follows.

[414] Spatial reuse field 1: This can generally mean a lower 80 MHz subchannel spatial reuse value.

[415] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 80 MHz.

[416] or

[417] The two space reuse fields can be configured by copying space reuse fields 1 and 3 from the activation frame as is, or by copying fields 2 and 4 as is. Alternatively, you can select and copy one of the two values ​​in each field as shown below. The selection criterion can be a large or small value.

[418] Spatial reuse field 1: This can generally mean a lower or lower second subchannel spatial reuse value of 40 MHz.

[419] Spatial reuse field 2: This can generally mean the spatial reuse value of the highest or second highest 40 MHz subchannel.

[420] or

[421] The two spatial reuse fields can be defined differently for each 80 MHz (i.e., the q LOzcn / eznz / q / YiAi The U-SIG configuration (154) may be different for each 80 MHz. At 80 MHz, spatial reuse fields 3 and 4 of the activation frame can be copied and configured as is. That is, it can be as follows.

[422] Spatial reuse field 1 to low 80 MHz: This can generally mean a spatial reuse value of the lower 40 MHz subchannel.

[423] Spatial reuse field 2 to low 80 MHz: This can generally mean a spatial reuse value of a second low subchannel of 40 MHz.

[424] Spatial reuse field 1 to 80 MHz high: This can generally mean a spatial reuse value of a second high subchannel of 40 MHz.

[425] Spatial reuse field 2 to 80 MHz high: This can generally mean a spatial reuse value of the highest subchannel of 40 MHz.

[426] v) 320 MHz:

[427] The two space reuse fields can be configured by copying space reuse fields 1 and 2 from the activation frame as is. That is, it can be as follows.

[428] Spatial reuse field 1: This can generally mean a lower subchannel spatial reuse value of 160 MHz.

[429] Space Reuse Field 2: This may q LOzcn / eznz / q / YiAi 155 generally means a higher subchannel spatial reuse value of 160 MHz.

[430] or

[431] The two space reuse fields can be configured by copying space reuse fields 1 and 3 from the activation frame as is, or by copying fields 2 and 4 as is. Alternatively, you can select and copy one of the two values ​​in each field as shown below. The selection criterion can be a large or small value.

[432] Spatial reuse field 1: This can generally mean a lower or second lower 80 MHz subchannel spatial reuse value.

[433] Spatial reuse field 2: This can generally mean a higher or second higher 80 MHz subchannel spatial reuse value.

[434] O

[435] The two spatial reuse fields can be defined differently for each 160 MHz (i.e., the U-SIG configuration can be different for each 160 MHz). Below 160 MHz, spatial reuse fields 1 and 2 of the trigger frame can be copied and configured as is. At a higher frequency of 160 MHz, spatial reuse fields 3 and 4 of the trigger frame can be copied and configured as is. See LOzcn / eznz / q / YiAi 156 That is, it can be as follows.

[436] Spatial reuse field 1 to 160 MHz low: This can generally mean a spatial reuse value of the subchannel 80 MHz lower.

[437] Carpo of spatial reuse 2 to 160 MHz low: This can generally mean a spatial reuse value of a second low subchannel of 80 MHz.

[438] Spatial reuse field 1 to 160 MHz high: This can generally mean a spatial reuse value of a second high subchannel of 80 MHz.

[439] Carpo of spatial reuse 2 to 160 MHz high: This can generally mean a spatial reuse value of the subchannel 80 MHz higher.

[440] Appendix 3>

[441] - 2 Spatial Reuse fields in the EHT Comrin Information field of the Activation Plot

[442] i) 20 MHz:

[443] The two space reuse fields can have the same space reuse value and can mean a space reuse value corresponding to a 20 MHz channel.

[444] ii) 40 MHz:

[445] Spatial reuse field 1: This can generally mean a spatial reuse value of the lower 20 MHz subchannel. q LOzcn / eznz / q / YiAi 157

[446] Spatial Reuse Field 2: This can generally mean a spatial reuse value of the highest subchannel of 20 MHz. Furthermore, even when the TB PPDU is transmitted in the 2.4 GHz band, it may be set to the same value as Spatial Reuse Field 1. The reason is that, since the 40 MHz channelization overlaps in the 2.4 GHz band, it is impossible to determine which channelization was used by the OBSS STA that decoded the corresponding TB PPDU on a specific 20 MHz channel, so it is simply set to the same value.

[447] iii) 80 MHz:

[448] Spatial reuse field 1: In general, this may mean a lower 40 MHz subchannel spatial reuse value.

[449] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 40 MHz.

[450] iv) 160 MHz:

[451] Spatial reuse field 1: This can generally mean a lower 80 MHz subchannel spatial reuse value.

[452] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 80 MHz. q LOzcn / eznz / q / YiAi 158

[453] ν) 32 0 MHz:

[454] Spatial reuse field 1: This can generally mean a lower subchannel spatial reuse value of 160 MHz.

[455] Spatial reuse field 2: This can generally mean a higher subchannel spatial reuse value of 160 MHz.

[456] - 2 Spatial Reuse fields in EHT TB (Sub-)PPDU U-GIS

[457] Copy the 2 spatial reuse fields in the previous Activation Plot as they are.

[458] Figure 22 is a process flow diagram illustrating the operation of the transmission device according to the present modality.

[459] The example in Figure 22 can be carried out by a transmitting STA or a transmitting device (AP and / or non-AP STA).

[460] Part of each step (or detailed sub-steps that will be described later) in the example in Figure 22 can be omitted or changed.

[461] Through step S2210, the transmitting device (transmitting STA) can obtain information about the tone plan described above. As described above, the tone plan information includes the RU size and location, control information q LOzcn / eznz / q / YiAi 159 related to the RU, information about a frequency band that includes the RU, information about a STA that receives the RU and the like.

[462] Through step S2220, the transmitting device can configure / generate a PPDU based on the acquired control information. A PPDU configuration / generation step can include a configuration / generation step for each field of the PPDU. That is, step S2222 includes a configuration step for the EHT-SIG field that contains control information about the tone plan. That is, step S2220 can include a configuration step for a field that contains control information (for example, N bitmaps) indicating the size / position of the RU and / or a configuration step for a field that contains an identifier of an STA (for example, AID) that receives the RU.

[463] In addition, step S2220 may include a step to generate an STF / LTF sequence transmitted through a specific RU. The STF / LTF sequence may be generated based on a predefined STF generation sequence / LTF generation sequence.

[464] In addition, step S2220 may include a step of generating a data field (i.e., MPDU) transmitted through a specific RU.

[465] The transmitting device can transmit the PPDU constructed through step S2220 to the receiving device 160 based on step S2230.

[466] While performing step S2230, the transmitting device may perform at least one of the following operations such as CSD, spatial mapping, IDFT / IFFT operation, and GI insertion.

[467] A signal / field / sequence constructed in accordance with the present specification may be transmitted in the form of figure 10.

[468] Figure 23 is a process flow diagram illustrating the operation of the receiving device according to the present modality.

[469] The PPDU mentioned above may be received in accordance with the example in Figure 22.

[470] The example in Figure 23 can be carried out by a receiving STA or a receiving device (AP and / or non-AP STA).

[471] Part of each step (or detailed sub-steps that will be described later) can be omitted in the example in Figure 23.

[472] The receiving device (receiving STA) can receive all or part of the PPDU through step S2310. The received signal may have the form of Figure 10.

[473] The substep of step S2310 can be determined based on step S2230 in Figure 22. That is, in step S2310, a restoration operation can be performed q LOzcn / eznz / q / YiAi 161 of the result of the CSD operation, spatial inappeo, IDFT / IFFT and GI insertion applied in step S2230.

[474] In step S2320, the receiving device can perform tcda / part decoding of the PPDU. In addition, the receiving device can obtain control information related to a tone plan (i.e., RU) from the decoded PPDU.

[475] More specifically, the receiving device can decode the PPDU's L-SIG and EHT-SIG based on the legacy STF / LTF and obtain information contained in the L-SIG and EHT-SIG fields. Information about various tone plans (i.e., RUs) described in this specification can be included in the EHT-SIG, and the receiving STA can obtain tone plan (i.e., RU) information through the EHT-SIG.

[476] In step S2330, the receiving device can decode the remaining portion of the PPDU based on the tone plan information (i.e., RU) acquired through step S2320. For example, the receiving STA can decode the STF / LTF field of the PPDU based on tone plan information (i.e., RU). Additionally, the receiving STA can decode the data field of the PPDU based on tone plan information (i.e., RU) and obtain the MPDU contained within the data field.

[477] In addition, the receiving device can perform q LOzcn / eznz / q / YiAi 162 A processing operation to transfer the decoded data through the S2330 step to a higher layer (e.g., the MAC layer). Furthermore, when the generation of a signal from the higher layer to the PHY layer is commanded in response to the data transmitted to the higher layer, a further operation can be performed.

[478] Hereafter, the modality described above will be described with reference to Figures 1A and IB to Figure 23.

[479] Figure 24 is a flowchart illustrating a procedure for setting up an activation frame and a TB PPDU that supports spatial reuse by an AP in accordance with the present modality.

[480] The example in Figure 24 can be implemented in a network environment that supports a next-generation WLAN system (IEEE 802.11ax or EHT WLAN system). The next-generation wireless LAN system is an enhanced WLAN system based on an 802.11ax system and can therefore satisfy backward compatibility with the 802.11ax system.

[481] The example in Figure 24 is carried out by a transmitting STA, and the transmitting STA may correspond to an access point (AP). A receiving STA in Figure 24 may correspond to a non-AP STA.

[482] This modality proposes a method to configure q LOzcn / eznz / q / YiAi 163 an activation frame and a TB PPDU that simultaneously supports spatial reuse of an 802.11ax (or HE) WLAN system and an 802.libe (or EHT) WLAN system.

[483] In step S2410, a transmitting station (STA) transmits an activation frame to a receiving STA.

[484] At step S2420, the transmitting STA receives a Activation-Based Physical Protocol Data Unit (TB PPDU) from the receiving STA through a pre-established frequency band.

[485] The activation frame includes a common information field and a special user information field. The common information field includes the first four spatial reuse fields. The special user information field includes the fifth and sixth spatial reuse fields.

[486] This mode involves a situation where the activation frame activates the EHT TB PPDU. The common information field is a common information field of the EHT variant and includes four spatial reuse fields (HSR1, HSR2, HSR3, and HSR4). The four spatial reuse fields HSR1, HSR2, HSR3, and HSR4 are defined for the spatial reuse of the OBSS HE STA. The special user information field is included in the activation frame when an association identifier (AID) is 2007 and includes two spatial reuse fields. 164 (ESR1 and ESR2). The two spatial reuse fields (ESR1 and ESR1) are defined for the spatial reuse of the OBSS EHT STA.

[487] When the preset frequency band is a 20 MHz band, the first through fourth spatial reuse fields are set to a value of the fifth spatial reuse field (HSR1 = HSR2 = HSR3 = HSR4 = HSR1). The OBSS HE STA can determine that the activation frame activates a 20 MHz HE TB PPDU.

[488] When the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value of the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value of the sixth spatial reuse field (HSR1 = HSR3 = ESR1 / HSR2 = HSR4 = ESR1). The OBSS HE STA can determine that the activation frame activates a 40 MHz HE TB PPDU.

[489] When the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field (HSR1 = HSR2 = ESR1 / HSR3 = HSR4 = ESR1). The OBSS HE STA can determine that the activation frame q LOzcn / eznz / q / YiAi activates an 80 MHz HE TB PPDU. 165

[490] When the preset frequency band is a 160 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field (HSR1 = HSR2 = ESR1 / HSR3 = HSR4 = ESR2). The OBSS HE STA can determine that the activation frame activates a 160 MHz HE TB PE'DU.

[491] When the preset frequency band is a 320 MHz band, the first four spatial reuse fields are set to a value less than the values ​​of the fifth and sixth spatial reuse fields (HSR1 = HSR2 = HSR3 = HSR4 = min(ESR1, VSG2)). The OBSS HE STA can determine that the activation frame activates a 160 MHz HE TB PPDU. Since the OBSS HE STA can operate on one of the two 160 MHz channels through which the EHT TB PPDU is transmitted, the HSR value must be a value that can represent both 160 MHz channels. At this time, it is preferable to set the HSR value to a value from a weak channel because it can reduce interference by reducing the OBSS STA's transmit power.

[492] That is, this modality proposes a method where four spatial reuse fields (HSR1, HSR2, HSR3, HSR4) are configured from two spatial reuse fields (ESR1, ESR2) in the user information field q LOzcn / eznz / q / YiAi 166 special in the common information field (common information field of the EHT variant) in each frequency band. The band (or channel) through which the activation frame is transmitted is the same as the band (or channel) through which the TB PPDU is transmitted.

[493] When the preset frequency band is the 20 MHz band, the values ​​in the first through fourth spatial reuse fields can be spatial reuse values ​​for the 20 MHz band. That is, the first through fourth spatial reuse fields can include the same spatial reuse value for the 20 MHz band.

[494] The spatial reuse value for the 20 MHz band can be a value used to calculate the transmission power accessible by the OBSS HE STA for the 20 MHz band.

[495] When the preset frequency band is the 40 MHz band, the values ​​in the first and third spatial reuse fields can be spatial reuse values ​​for a first 20 MHz subchannel having a low frequency in the 40 MHz band, and the values ​​in the second and fourth spatial reuse fields can be spatial reuse values ​​for a second 20 MHz subchannel having a high frequency in the 40 MHz band.

[496] q LOzcn / eznz / q / YiAi When the TB PPDU is transmitted in a 2.4 GHz band 167 GHz, the spatial reuse value for the second 20 MHz subchannel can be set equal to the spatial reuse value for the first 20 MHz subchannel.

[497] The spatial reuse value for the first 20 MHz subchannel can be used to calculate the transmission power accessible by a high-efficiency (HE) STA of the Overlapping Basic Services Set (OBSS) for the first 20 MHz subchannel. The spatial reuse value for the second 20 MHz subchannel can be used to calculate the transmission power accessible by the OBSS HE STA for the second 20 MHz subchannel.

[498] If the preset frequency band is the 80 MHz band, the OBSS HE STA interprets the value of the first spatial reuse field as a spatial reuse value for a first 20 MHz subchannel having the lowest frequency in the 80 MHz band, interprets the value of the second spatial reuse field as a spatial reuse value for a second 20 MHz subchannel having the second lowest frequency in the 80 MHz band, interprets the value of the third spatial reuse field as a spatial reuse value for a third 20 MHz subchannel having a second highest frequency in the 80 MHz band, and interprets the value of the fourth spatial reuse field as a spatial reuse value for a third 20 MHz subchannel having a second highest frequency in the 80 MHz band, and interprets the value of the fourth spatial reuse field as a spatial reuse value for a third 20 MHz subchannel having a second highest frequency in the 80 MHz band. 168 spatial as a spatial reuse value for a fourth 20 MHz subchannel that has the highest frequency in the 80 MHz band. However, the AP sets the first and second spatial reuse fields to values ​​from a spatial reuse field that represents a first 40 MHz subchannel that has a low frequency in the 80 MHz band, and sets the third and fourth spatial reuse fields to values ​​from a spatial reuse field that represents a second 40 MHz subchannel that has a high frequency in the 80 MHz band.

[499] The spatial reuse value for the first 20 MHz subchannel can be used to calculate the transmission power accessible by a high-efficiency (HE) STA of the Overlapping Basic Services Set (OBSS) for the first 20 MHz subchannel. The spatial reuse value for the second 20 MHz subchannel can be used to calculate the transmission power accessible by the OBSS HE STA for the second 20 MHz subchannel. The spatial reuse value for the third 20 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the third 20 MHz subchannel. The spatial reuse value for the fourth 20 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the fourth 169 20 MHz subchannel. q LOzcn / eznz / q / YiAi

[500] When the preset frequency band is the 160 MHz band, the OBSS HE STA interprets the value of the first spatial reuse field as a spatial reuse value for a first 40 MHz subchannel having the lowest frequency in the 160 MHz band, interprets the value of the second spatial reuse field as a spatial reuse value for a second 40 MHz subchannel having the second lowest frequency in the 160 MHz band, interprets the value of the third spatial reuse field as a spatial reuse value for a third 40 MHz subchannel having a second highest frequency in the 160 MHz band, and interprets the value of the fourth spatial reuse field as a spatial reuse value for a fourth 40 MHz subchannel having the highest frequency in the 160 MHz band.However, the AP sets the first and second spatial reuse fields to values ​​of a spatial reuse field representing a first 80 MHz subchannel that has a low frequency in the 160 MHz band, and sets the third and fourth spatial reuse fields to values ​​of a spatial reuse field representing a second 80 MHz subchannel that has a high frequency in the 80 MHz band.

[501] The space reuse value for the first The spatial reuse value for the 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the first 40 MHz subchannel. The spatial reuse value for the second 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the second 40 MHz subchannel. The spatial reuse value for the third 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the third 40 MHz subchannel. The spatial reuse value for the fourth 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the fourth 40 MHz subchannel.

[502] When the preset frequency band is the 320 MHz band, since the OBSS HE STA can only decode the first bandwidth field (2-bit UL BW subfield) described below (the second bandwidth field (2-bit UL bandwidth extension subfield) cannot be interpreted), it may interpret the preset frequency band as a 160 MHz band. Consequently, the OBSS HE STA interprets the value of the first spatial reuse field as the lowest spatial reuse value for the first 40 MHz subchannel in the 160 MHz band (where it is located), and interprets the value of the second reuse field as the lowest spatial reuse value for the first 40 MHz subchannel in the 160 MHz band (where it is located). 171 spatial as a spatial reuse value for a second 40 MHz subchannel that is the second lowest in the 160 MHz band, interprets the value of the third spatial reuse field as a spatial reuse value for a third 40 MHz subchannel that is the second highest in the 160 MHz band, and interprets the value of the fourth spatial reuse field as a spatial reuse value for a fourth 40 MHz subchannel that has the highest value in the 160 MHz band.However, the AH sets the first spatial reuse field to a value representing the first 40 MHz subchannel with the lowest frequency within each 160 MHz channel of the 320 MHz band, sets the second spatial reuse field to a value representing a second 40 MHz subchannel with the second lowest frequency within each 160 MHz channel of the 320 MHz band, sets the third spatial reuse field to a value representing a third 40 MHz subchannel with the second highest frequency within each 160 MHz channel of the 320 MHz band, and sets the fourth spatial reuse field to a value representing a fourth 40 MHz subchannel with the highest frequency within each 160 MHz channel of the 320 MHz band. MHz. q LOzcn / eznz / q / YiAi 172

[503] The spatial reuse value for the first 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the first 40 MHz subchannel. The spatial reuse value for the second 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the second 40 MHz subchannel. The spatial reuse value for the third 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the third 40 MHz subchannel. The spatial reuse value for the fourth 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the fourth 40 MHz subchannel.

[504] The common information field may include a first bandwidth field, and the special user information field includes a second bandwidth field. A preset frequency band bandwidth can be established based on the first and second bandwidth fields. For example, when the first bandwidth field is set to 0 and the second bandwidth field is set to 0, the preset frequency band might be 20 MHz. When the first bandwidth field is set to 1 and the second bandwidth field is set to 0, the frequency band The preset frequency band 173 can be 40 MHz. When the first bandwidth field is set to 2 and the second bandwidth field is set to 0, the preset frequency band can be 80 MHz. When the first bandwidth field is set to 3 and the second bandwidth field is set to 1, the preset frequency band can be 160 MHz. When the first bandwidth field is set to 3 and the second bandwidth field is set to 2, the preset frequency band can be 320-1 MHz. When the first bandwidth field is set to 3 and the second bandwidth field is set to 3, the preset frequency band can be 320-2 MHz. The TB PPDU is assumed to be an EHT TB PPDU. The first bandwidth field indicates the bandwidth of the HE TB PPDU. By using the first and second bandwidth fields together, you can also specify the bandwidth of the EHT TB PPDU.

[505] The TB PPDU may include a Universal Signal Field (U-SIG). The U-SIG field may include seventh and eighth space reuse fields. The seventh space reuse field may be configured by duplicating the fifth space reuse field. The eighth space reuse field may be configured by duplicating the sixth space reuse field.

[506] The values ​​of the seventh and eighth fields of q LOzcn / eznz / q / YiAi The 174 spatial reuse fields can be normalized for each 20 MHz subchannel. Since the seventh spatial reuse field duplicates the fifth spatial reuse field, and the eighth spatial reuse field duplicates the sixth spatial reuse field, the values ​​of the fifth and sixth spatial reuse fields can also be normalized for each 20 MHz subchannel. Consequently, the values ​​of the first through fourth spatial reuse fields can also be normalized for each 20 MHz subchannel.

[507] For example, when the preset frequency band is an 80 MHz band, the fifth (or seventh) spatial reuse field can be applied to each 2 0 MHz subchannel of a first 4 0 MHz subband in the 80 MHz band, and the sixth (or eighth) spatial reuse field can be applied to each 2 0 MHz subchannel of the second 40 MHz subband in the 80 MHz band.

[508] When the preset frequency band is a 160 MHz band, the fifth (or seventh) spatial reuse field can be applied to each 20 MHz subchannel of a first 80 MHz subband in the 160 MHz band, and the sixth (or eighth) spatial reuse field can be applied to each 20 MHz subchannel of the second 80 MHz subband in the 160 MHz band.

[509] When the preset frequency band is a q LOzcn / eznz / q / YiAi 175 band of 320 MHz-1 or 320 MHz-2, the fifth (or seventh) spatial reuse field can be applied to each 20 MHz subchannel of a first 160 MHz subband in the 320 MHz-1 or 320 MHz-2 band, and the sixth (or eighth) spatial reuse field can be applied to each 20 MHz subchannel of the second 160 MHz subband in the 320 MHz-1 or 320 MHz-2 band.

[510] The first through eighth space reuse fields each consist of 4 bits and can use the same value as the value defined in the 802.lia wireless LAN system: (see Table 3).

[511] According to this mode, the transmitting STA informs the OBSS STA of a permissible interference power value for a specific band (or specific channel) through a spatial reuse value, and the OBSS STA derives transmit power using the interference power value and the AP TX Power subfield value, and transmits a signal carrying out spatial reuse in the specific band (or specific channel). Since the OBSS STA carries out spatial reuse, the transmitting STA may not receive interference due to the OBSS STA when receiving the TB PPDU. That is, the present mode has the effect of improving performance and efficiency by allowing spatial reuse by the OBSS STA and the stable use of the LOzcn / eznz / q / YiAi 176 transmission resources for a specific band without collision.

[512] The activation frame is divided into an HE variant case and an EHT variant case, and a common information field and a user information field can be configured differently (see Figures 16 and 17 for the common information field and Figure 20 for the user information field). The TB PPDU can be an EHT TB PPDU. The EHT TB PPDU can include a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (LSIG), a repeated L-SIG (RL-SIG), a universal signal (USIG), an EHT-STF and EHT-LTF, and a data field. That is, the EHT TB PPDU is defined in a format that excludes EHT-SIG from the EHT MU PPDU.

[513] In addition, the TB PPDU can be an Aggregate Activation-Based Physical Protocol Data Unit (A-PPDU) in which a High Efficiency (HE) TB PPDU and an Extremely High Performance (EHT) TB PPDU are added.

[514] Figure 25 is a flowchart illustrating a procedure for setting up an activation frame and a TB PPDU that supports spatial reuse by an STA in accordance with the present modality.

[515] The example in Figure 25 can be carried out in a network environment in which a ULAN system is supported 177 Next Generation (IEEE 802.11ax or EHT WLAN system). The next generation wireless LAN system is an improved WLAN system based on an 802.11ax system and, therefore, can meet backward compatibility requirements for the 802.11ax system. q LOzcn / eznz / q / YiAi

[516] The example in Figure 25 can be carried out by a receiving STA, and the receiving STA can correspond to a non-AP STA. A transmitting STA in Figure 25 can correspond to an access point (AP).

[517] This modality proposes a method for configuring an activation frame and a TB PPDU that simultaneously support spatial reuse of an 802.11ax (or HE) WLAN system and an 802.libe (or EHT) WLAN system.

[518] In step S2510, a receiving station (STA) receives an activation frame from a transmitting STA.

[519] In step S2520, the receiving STA transmits a Activation-Based Physical Protocol Data Unit (TB PPDU) to the transmitting STA over a preset frequency band.

[520] The activation plot includes a common information field and a special user information field. The common information field includes the first four spatial reuse fields. The special user information field includes the fifth and sixth spatial reuse fields. 178

[521] This mode represents a situation in which the activation frame activates the EHT TB PPDU. The common information field is a common information field of the EHT variant and includes four spatial reuse fields (HSR1, HSR2, HSR3, and HSR4). The four spatial reuse fields HSR1, HSR2, HSR3, and HSR4 are defined for the spatial reuse of the OBSS HE STA. The special user information field is included in the activation frame when an association identifier (AID) is 2007 and includes two spatial reuse fields (ESR1 and ESR2). The two spatial reuse fields (ESR1 and ESR2) are defined for the spatial reuse of the OBSS EHT STA.

[522] When the preset frequency band is a 20 MHz band, the first four spatial reuse fields are set to a value of the fifth spatial reuse field (HSR1 = HSR2 = HSR3 = HSR4 = ESR1). The OBSS HE STA can determine that the activation frame activates a 20 MHz HE TB PPDU.

[523] When the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value of the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value of the sixth spatial reuse field (HSR1 = HSR3 = ESR1 / HSR2 = q LOzcn / eznz / q / YiAi 179 HSR4 = ESR2 ) . The OBSS HE STA can determine that the activation frame activates a 40 MHz HE TB PPDU.

[524] When the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field (HSR1 = HSR2 = ESR1 / HSR3 = HSR4 = ESR2). The OBSS HE STA can determine that the activation frame activates an 80 MHz HE TB PPDU.

[525] When the preset frequency band is a 160 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field (HSR1 = HSR2 = ESR1 / HSR3 = HSR4 = ESR2). The OBSS HE STA can determine that the activation frame activates a 160 MHz HE TB PPDU.

[526] When the preset frequency band is a 320 MHz band, the first through fourth spatial reuse fields are set to a value lower than the values ​​of the fifth and sixth spatial reuse fields (HSR1 = HSR2 = HSR3 = HSR4 = min(ESR1, VSG2)). The OBSS HE STA can determine that the activation frame activates a 160 MHz HE TB PPDU q LOzcn / eznz / q / YiAi. Since the OBSS HE STA can operate in one of 180 The two 160 MHz channels through which the EHT TB PPDU is transmitted, the HSR value must be a value that can represent both 160 MHz channels. At this time, it is preferable to set the HSR value to that of a weak channel because it can reduce interference by reducing the transmission power of the OBSS STA.

[527] That is, this modality proposes a method in which four spatial reuse fields (HSR1, HSR2, HSR3, HSR4) are configured based on two spatial reuse fields (ESR1, ESR2) in the special user information field in the common information field (common information field of the EHT variant) in each frequency band. The band (or channel) through which the activation frame is transmitted is the same as the band (or channel) through which the TB PPDU is transmitted.

[528] When the preset frequency band is the 20 MHz band, the values ​​in the first through fourth spatial reuse fields can be spatial reuse values ​​for the 20 MHz band. That is, the first through fourth spatial reuse fields can include the same spatial reuse value for the 20 MHz band.

[529] The spatial reuse value for the 20 MHz band can be a value used to calculate the transmission power accessible by the OBSS HE STA for the 20 MHz band. 181 MHz. q LOzcn / eznz / q / YiAi

[530] When the preset frequency band is the 40 MHz band, the values ​​of the first and third spatial reuse fields can be spatial reuse values ​​for a first 20 MHz subchannel having a low frequency in the 40 MHz band, and the values ​​of the second and fourth spatial reuse fields can be spatial reuse values ​​for a second 20 MHz subchannel having a high frequency in the 40 MHz band.

[531] When the TB PPDU is transmitted in a 2.4 GHz band, the spatial reuse value for the second 20 MHz subchannel can be set equal to the spatial reuse value for the first 20 MHz subchannel.

[532] The spatial reuse value for the first 20 MHz subchannel can be used to calculate the transmission power accessible by a high-efficiency (HE) STA of the Overlapping Basic Services Set (OBSS) for the first 20 MHz subchannel. The spatial reuse value for the second 20 MHz subchannel can be used to calculate the transmission power accessible by the OBSS HE STA for the second 20 MHz subchannel.

[533] If the preset frequency band is the 80 MHz band, the OBSS HE STA interprets the value of the first spatial reuse field as a value of 182 spatial reuse for a first 20 MHz subchannel having the lowest frequency in the 80 MHz band, interprets the value of the second spatial reuse field as a spatial reuse value for a second 20 MHz subchannel having the second lowest frequency in the 80 MHz band, interprets the value of the third spatial reuse field as a spatial reuse value for a third 20 MHz subchannel having a second highest frequency in the 80 MHz band, and interprets the value of the fourth spatial reuse field as a spatial reuse value for a fourth 20 MHz subchannel having the highest frequency in the 80 MHz band.However, the AP sets the first and second spatial reuse fields to values ​​of a spatial reuse field representing a first 40 MHz subchannel that has a low frequency in the 80 MHz band, and sets the third and fourth spatial reuse fields to values ​​of a spatial reuse field representing a second 40 MHz subchannel that has a high frequency in the 80 MHz band. q LOzcn / eznz / q / YiAi

[534] The spatial reuse value for the first 20 MHz subchannel can be used to calculate the transmission power accessible by a high-efficiency (HE) STA of the Overlapping Basic Services Set (OBSS) for the first 20 MHz subchannel. The spatial reuse value 183 for the second 20 MHz subchannel can be used to calculate the transmission power accessible by the OBSS HE STA for the second 20 MHz subchannel. The spatial reuse value for the third 20 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the third 20 MHz subchannel. The spatial reuse value for the fourth 20 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the fourth 20 MHz subchannel.

[535] When the preset frequency band is the 160 MHz band, the OBSS HE STA interprets the value of the first spatial reuse field as a spatial reuse value for a first 40 MHz subchannel having the lowest frequency in the 160 MHz band, interprets the value of the second spatial reuse field as a spatial reuse value for a second 40 MHz subchannel having the second lowest frequency in the 160 MHz band, interprets the value of the third spatial reuse field as a spatial reuse value for a third 40 MHz subchannel having a second highest frequency in the 160 MHz band, and interprets the value of the fourth spatial reuse field as a spatial reuse value for a q LOzcn / eznz / q / YiAi 184 fourth subchannel of 40 MHz which has the highest frequency in the 160 MHz band. However, the AP sets the first and second spatial reuse fields to values ​​of a spatial reuse field that represents a first 80 MHz subchannel that has a low frequency in the 160 MHz band, and sets the third and fourth spatial reuse fields to values ​​of a spatial reuse field that represents a second 80 MHz subchannel that has a high frequency in the 80 MHz band.

[536] The spatial reuse value for the first 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the first 40 MHz subchannel. The spatial reuse value for the second 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the second 40 MHz subchannel. The spatial reuse value for the third 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the third 40 MHz subchannel. The spatial reuse value for the fourth 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the fourth 40 MHz subchannel.

[537] When the preset frequency band is the 320 MHz band, since the OBSS HE STA can only 185 decode the first bandwidth field (2-bit UL BW subfield) described below (the second bandwidth field (2-bit UL bandwidth extension subfield) cannot be interpreted), can interpret the preset frequency band as a 160 MHz band.Accordingly, the OBSS HE STA interprets the value of the first spatial reuse field as the lowest spatial reuse value for the first 40 MHz subchannel in the 160 MHz band (where it is located), interprets the value of the second spatial reuse field as a spatial reuse value for a second 40 MHz subchannel that is the second lowest in the 160 MHz band, interprets the value of the third spatial reuse field as a spatial reuse value for a third 40 MHz subchannel that is the second highest in the 160 MHz band, and interprets the value of the fourth spatial reuse field as a spatial reuse value for a fourth 40 MHz subchannel that has the highest value in the 160 MHz band.However, the AH sets the first spatial reuse field to a value of a spatial reuse field that represents the first 40 MHz subchannel that has the lowest frequency within each 160 MHz channel of the 320 MHz band, sets the second spatial reuse field to a value of a spatial reuse field that represents a q LOzcn / eznz / q / YiAi. 186 second 40 MHz subchannel having the second lowest frequency in each 160 MHz channel of the 320 MHz band, sets the third spatial reuse field to a value of a spatial reuse field representing a third 40 MHz subchannel having a second highest frequency within each 160 MHz channel of the 320 MHz band, and sets the fourth spatial reuse field to a value of a spatial reuse field representing a fourth 40 MHz subchannel having the highest frequency within each 160 MHz channel of the 320 MHz band.

[538] The spatial reuse value for the first 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the first 40 MHz subchannel. The spatial reuse value for the second 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the second 40 MHz subchannel. The spatial reuse value for the third 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the third 40 MHz subchannel. The spatial reuse value for the fourth 40 MHz subchannel can be used to calculate the transmission power accessible by an OBSS HE STA for the fourth 40 MHz subchannel.

[539] The common information field may include a q LOzcn / eznz / q / YiAi 187 first bandwidth field, and the special user information field includes a second bandwidth field. A preset frequency bandwidth can be established based on the first and second bandwidth fields. For example, when the first bandwidth field is set to 0 and the second bandwidth field is set to 0, the preset frequency band might be 20 MHz. When the first bandwidth field is set to 1 and the second bandwidth field is set to 0, the preset frequency band might be 40 MHz. When the first bandwidth field is set to 2 and the second bandwidth field is set to 0, the preset frequency band might be 80 MHz. When the first bandwidth field is set to 3 and the second bandwidth field is set to 1, the preset frequency band might be 160 MHz. When the first bandwidth field is set to 3 and the second bandwidth field is set to 2, the preset frequency band might be 320 MHz.When the first bandwidth field is set to 3 and the second bandwidth field is set to 3, the preset frequency band can be 320-2 MHz. The TB PPDU is assumed to be an EHT TB PPDU. The first bandwidth field indicates the bandwidth of the HE TB PPDU. When using. 188 together the first and second bandwidth fields, you can also indicate the bandwidth of the EHT TB PPDU.

[540] The TB PPDU may include a Universal Signal Field (U-SIG). The U-SIG field may include seventh and eighth space reuse fields. The seventh space reuse field may be configured by duplicating the fifth space reuse field. The eighth space reuse field may be configured by duplicating the sixth space reuse field.

[541] The values ​​of the seventh and eighth spatial reuse fields can be normalized values ​​for each 20 MHz subchannel. Since the seventh spatial reuse field duplicates the fifth spatial reuse field and the eighth spatial reuse field duplicates the sixth spatial reuse field, the values ​​of the fifth and sixth spatial reuse fields can also be normalized values ​​for each 20 MHz subchannel. Consequently, the values ​​of the first through fourth spatial reuse fields can also be normalized values ​​for each 20 MHz subchannel.

[542] For example, when the preset frequency band is an 80 MHz band, the fifth (or seventh) spatial reuse field can be applied to each 20 MHz subchannel of a first 40 MHz subband in the 80 MHz band, and the sixth (or eighth) field of q LOzcn / eznz / q / YiAi 189 Spatial reuse can be applied to each 20 MHz subchannel of the second 40 MHz subband in the 80 MHz band.

[543] When the preset frequency band is a 160 MHz band, the fifth (or seventh) spatial reuse field can be applied to each 20 MHz subchannel of a first 80 MHz subband in the 160 MHz band, and the sixth (or eighth) spatial reuse field can be applied to each 20 MHz subchannel of the second 80 MHz subband in the 160 MHz band.

[544] When the preset frequency band is a 320 MHz-1 or 320 MHz-2 band, the fifth (or seventh) spatial reuse field can be applied to each 20 MHz subchannel of a first 160 MHz subband in the 320 MHz-1 or 320 MHz-2 band, and the sixth (or eighth) spatial reuse field can be applied to each 20 MHz subchannel of the second 160 MHz subband in the 320 MHz-1 or 320 MHz-2 band.

[545] The first through eighth space reuse fields each consist of 4 bits and can use the same value as the value defined in the 802.11ax wireless LAN system (see Table 3).

[546] According to this modality, the transmitting STA informs the OBSS STA of an interference power value that is permissible for a specific band (or specific channel) through a reuse value 190 spatial, and the OBSS STA derives the transmit power q LOzcn / eznz / q / YiAi using the interference power value and the AP TX Power subfield value, and transmits a signal performing spatial reuse in the specific band (or specific channel). Since the OBSS STA performs spatial reuse, the transmitting STA may not receive interference due to the OBSS STA when receiving the TB PPDU. That is, ] me ή pray the re nd im reuse space resources of collision.

[547] The HE variant frame and a common and present information modality and the efficient ial of the OBSS STA misic> n for an activation case of variant a field of information has the effect of vicious by allowing the / stable use of the specific band without dividing into a case of EHT, and a user action field can be configured differently (see Figures 16 and 17 for the common information field, and Figure 20 for the user information field). The TB PPDU can be an EHT TB PPDU. The EHT TB PPDU can include a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (LSIG), a repeated L-SIG (RL-SIG), a universal signal (USIG), an EHT-STF and an EHT-LTF, and a data field. That is, the EHT TB PPDU is defined in a format that excludes EHT-SIG from the EHT MU PPDU. 191

[548] In addition, the TB PPDU can be an Aggregate TB Activator-Based Physical Protocol Data Unit (APPDU) in which a High Efficiency (HE) TB PPDU and an Extremely High Performance (EHT) TB PPDU are aggregated. q LOzcn / eznz / q / YiAi

[549] 4. Device configuration

[550] The technical features of the invention can be applied to various devices and methods. For example, the technical features of the present invention can be carried out / supported by means of the devices in Figures 1A and 1B and / or Figure 11. For example, the technical features of the present invention can be applied only to a part of Figures 1A and 1B and / or Figure 11. For example, the technical features of the present invention can be implemented based on the processing chips 114 and 124 of Figures 1A and 1B, or implemented based on the processors 111 and 121 and the memory(s) 112 and 122, or implemented based on the processor 610 and memory 620 of Figure 11.For example, the device according to the present invention receives an activation frame from a transmitting station (TSS); and transmits a Physical Protocol Activation Base Data Unit (TPD) through a pre-established frequency band to the transmitting TSS.

[551] The technical characteristics of the present 192. The invention can be implemented based on a computer-readable medium (CRM). For example, a CRM according to the present invention is at least a computer-readable medium that includes instructions designed to be executed by at least one processor.

[552] The CRM can store instructions that carry out operations, including receiving an activation frame from a transmitting station (STA); and transmit a Physical Protocol to Activation Base Data Unit (TB PPDU) over a preset frequency band to the transmitting STA. At least one processor can execute the instructions stored in the CRM according to the present invention. At least one processor related to the CRM of the present invention can be processor 111, 121 of Figures 1A and 1B, processing chip 114, 124 of Figures 1A and 1B, or processor 610 of Figure 11. Meanwhile, the CRM of the present invention can be memory 112, 122 of Figures 1A and 1B, memory 620 of Figure 11, or a separate external memory / storage medium / disk.

[553] The above technical characteristics of this specification are applicable to various applications or business models. For example, the above technical characteristics can be applied to wireless communication of a device compliant with q LOzcn / eznz / q / YiAi 193 artificial intelligence (AI).

[554] Artificial intelligence refers to a field of study about artificial intelligence or methodologies for creating artificial intelligence, and machine learning refers to a field of study about methodologies for defining and solving various problems in the area of ​​artificial intelligence. Machine learning is also defined as an algorithm for improving the performance of an operation through constant experience of the operation.

[555] An artificial neural network (AUN) is a model used in machine learning and can refer to a general problem-solving model that includes artificial neurons (nodes) that form a network by combining synapses. The artificial neural network can be defined by a connection pattern between neurons in different layers, a learning process for updating a model parameter, and an activation function that generates an output value.

[556] The artificial neural network may include an input layer, an output layer, and optionally one or more hidden layers. Each layer includes one or more neurons, and the artificial neural network may include synapses connecting the neurons. In the artificial neural network, each neuron can generate a function value of an activation function of input signals across a synapse, q LOzcn / eznz / q / YiAi 194 pesos and deviations.

[557] A model parameter refers to a parameter determined through learning and includes a synoptic connection weight and a neuron deviation. A hyperparameter refers to a parameter that will be set before learning in a machine learning algorithm and includes a learning rate, the number of iterations, a mini-batch size, and an initialization function.

[558] The learning of an artificial neural network may be aimed at determining a model parameter to minimize a loss function. The loss function can be used as an index to determine an optimal model parameter in a learning process of the artificial neural network.

[559] Machine learning can be classified into supervised learning, unsupervised learning, and reinforcement learning.

[560] Supervised learning refers to a method of training an artificial neural network with a given label for the training data, where the label may indicate a correct response (or outcome value) that the artificial neural network needs to infer when the training data is fed into the artificial neural network. Unsupervised learning may refer to

[560] Supervised learning. 195 A training method for an artificial neural network without a given label for the training data. Reinforcement learning can refer to a training method for training an agent defined in an environment to choose an action or sequence of actions to maximize a cumulative reward in each state.

[561] Machine learning implemented with a deep neural network (DNN) that includes a plurality of hidden layers between artificial neural networks is called deep learning, and deep learning is a part of machine learning. From here on, machine learning is understood to include deep learning.

[562] The above technical characteristics can be applied to the wireless communication of a robot.

[563] Robots can refer to machinery that automatically processes or performs a given task with its own ability. In particular, a robot that has the function of recognizing an environment and making an autonomous judgment to carry out an operation can be called an intelligent robot.

[564] Robots can be classified as industrial, medical, domestic, military, and so forth according to their uses or fields. A robot may include an actuator or controller that includes a motor to perform various physical operations, such as moving a robot joint. In addition, a mobile robot may include a wheel, a q LOzcn / eznz / q / YiAi 196 train, a propeller and the like on a conductor to run along the ground or fly through the air via the conductor.

[565] The above technical characteristics may apply to a device that supports extended reality.

[566] Extended reality refers collectively to virtual reality (VR), augmented reality (AR), and mixed reality (MR). VR technology is a computer graphics technology that provides a real-world object and background within a single CG image. AR technology is a computer graphics technology that provides a virtual CG image within a real-world object image. MR technology is a computer graphics technology that provides virtual objects mixed and combined with the real world.

[567] MR technology is similar to AR technology in that a real object and a virtual object are displayed together. However, a virtual object is used as a complement to a real object in AR technology, whereas a virtual object and a real object are used as equal states in MR technology.

[568] XR technology can be applied to a head-mounted display (HMD), a head-up display (HUD), a mobile phone, a tablet, a laptop computer, a desktop computer, a television, digital signage, and the like. A device to which XR technology is applied may be called a q LOzcn / eznz / q / YiAi 197 XR device. q LOzcn / eznz / q / YiAi

[569] The claims listed in this specification may be combined in various ways. For example, the technical features of the method claims of this specification may be combined to be implemented as a device, and the technical features of the device claims of this specification may be combined to be implemented by a method. Furthermore, the technical features of the method claim of this specification and the technical features of the device claim may be combined to be implemented as a device, and the technical features of the method claim of this specification and the technical features of the device claim may be combined to be implemented by a method.

Claims

1. A method in a wireless local area network (WLAN) system, wherein the method comprises: receiving, by a receiving station (STA), an activation frame from a transmitting STA; and transmitting, by the receiving STA, a trigger-based physical protocol data unit (TB PPDU) over a preset frequency band to the transmitting STA, wherein the activation frame includes a common information field and a special user information field, wherein the common information field includes the first four spatial reuse fields, wherein the special user information field includes the fifth and sixth spatial reuse fields, wherein when the preset frequency band is a 20 MHz band, the first four spatial reuse fields are set to a value of the fifth spatial reuse field, wherein when the preset frequency band is a 40 MHz band,the first and third spatial reuse fields are set to a value of 199 from the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value from the sixth spatial reuse field, wherein when the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field, wherein when the preset frequency band is a 160 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field, and wherein when the preset frequency band is a 320 MHz band,The first four spatial reuse fields are set at a lower value between the values ​​of the fifth and sixth spatial reuse fields.

2. The method according to claim 1, wherein when the preset frequency band is the 20 MHz band, the values ​​of the first to fourth spatial reuse fields are spatial reuse values ​​for the 20 MHz band. q LOzcn / eznz / q / YiAi 200 3. The method according to claim 1, wherein when the preset frequency band is the 40 MHz band, the values ​​of the first and third spatial reuse fields are spatial reuse values ​​for a first 20 MHz subchannel having a low frequency in the 40 MHz band, and the values ​​of the second and fourth spatial reuse fields are spatial reuse values ​​for a second 20 MHz subchannel having a high frequency in the 40 MHz band.

4. The method according to claim 3, wherein when the TB PPE'U is transmitted in a 2.4 GHz band, the spatial reuse value for the second 20 MHz subchannel is set equal to the spatial reuse value for the first 20 MHz subchannel, wherein the spatial reuse value for the first 20 MHz subchannel is a value used to calculate the transmission power accessible by a high-efficiency (HE) STA of the Overlapping Basic Services Set (OBSS) for the first 20 MHz subchannel, wherein the spatial reuse value for the second 20 MHz subchannel is a value used to calculate the transmission power accessible by the HE STA of the OBSS for the second 20 MHz subchannel.

5. The method according to claim 1, wherein when the preset frequency band is q LOzcn / eznz / q / YiAi 201 the 80 MHz band, the value of the first spatial reuse field is a spatial reuse value for the first lowest 20 MHz subchannel in the 80 MHz band, the value of the second spatial reuse field is a spatial reuse value for a second 20 MHz subchannel that is the second lowest in the 80 MHz band, the value of the third spatial reuse field is a spatial reuse value for a third 20 MHz subchannel that is the second highest in the 80 MHz band, and the value of the fourth spatial reuse field is a spatial reuse value for the fourth 20 MHz subchannel that is the highest in the 80 MHz band.

6. The method according to claim 1, wherein when the preset frequency band is the 160 MHz band, the value of the first spatial reuse field is a spatial reuse value for the first lowest 40 MHz subchannel in the 160 MHz band, the value of the second spatial reuse field is a spatial reuse value for a second 40 MHz subchannel that is the second lowest in the 160 MHz band, the value of the third spatial reuse field is a spatial reuse value for a third 40 MHz subchannel that is the second highest in the 160 MHz band, and the value of the fourth spatial reuse field is a spatial reuse value for the fourth 40 MHz subchannel that is the highest in the 160 MHz band.

7. The method according to claim 1, wherein when the preset frequency band is the 320 MHz band, the value of the first spatial reuse field is a spatial reuse value representing a first 40 MHz subchannel having the lowest frequency delay of each 160 MHz channel of the 320 MHz band, the value of the second spatial reuse field is a spatial reuse value representing a second 40 MHz subchannel having a second lowest frequency delay of each 160 MHz channel of the 320 MHz band, and the value of the third spatial reuse field is a spatial reuse value representing a third 40 MHz subchannel having the second highest frequency within each 160 MHz channel of the 320 MHz band.and the value of the quartz field space reuse is a space reuse value that represents a fourth 40 MHz subchannel that has the highest frequency within each 160 MHz channel of the 320 MHz band.

8. The method according to claim 1, wherein the common information field includes a first bandwidth field, and the special user information field includes a second bandwidth field; wherein a preset frequency band bandwidth is established based on the first and second bandwidth fields.

9. The method according to claim 1, wherein the TB PPDU includes a universal signal field (U-SIG), wherein the U-SIG field includes seventh and eighth space reuse fields, wherein the seventh space reuse field is configured by duplicating the fifth space reuse field, wherein the eighth space reuse field is configured by duplicating the sixth space reuse field 1.

10. The method according to claim 9, wherein the values ​​of the seventh and eighth spatial reuse fields are normalized values ​​for each 20 MHz subchannel.

11. A receiving station (RS) in a wireless local area network (WLAN) system, wherein the receiving RS comprises: a memory; a transceiver; and a processor operatively connected to the memory and the transceiver, wherein the processor is configured to: receive an activation frame from a transmitting RS; and transmit a physical protocol activation-based data unit (TPD) across a preset frequency band to the transmitting RS, wherein the activation frame includes a common information field and a special user information field, wherein the common information field includes the first four spatial reuse fields, wherein the special user information field includes the fifth and sixth spatial reuse fields, wherein the preset frequency band is a 20 MHz band,The first to fourth spatial reuse fields are set to a value from the fifth spatial reuse field, where, when the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value from the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value from the sixth spatial reuse field, where, when the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field, where, when the preset frequency band is a 160 MHz band,The first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field, and wherein when the preset frequency band is a 320 MHz band, the first to fourth spatial reuse fields are set to a lower value between the values ​​of the fifth and sixth spatial reuse fields.

12. A method in a wireless local area network (WLAN) system, wherein the method comprises: transmitting, by a transmitting station (STA), an activation frame to a receiving STA; and receiving, by the transmitting STA, an activation-based physical protocol data unit (TB PPDU) from the receiving STA over a pre-established frequency band, wherein the activation frame includes a common information field and a special user information field, wherein the common information field includes the first to fourth spatial reuse fields, wherein the special user information field includes the fifth and sixth spatial reuse fields, wherein when the pre-established frequency band is a 20 MHz band, the first to fourth spatial reuse fields are set to a value of the fifth spatial reuse field.Wherein, when the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value of the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value of the sixth spatial reuse field; whereas, when the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field; whereas, when the preset frequency band is a 160 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field.and the third and fourth spatial reuse fields are set at a value of the sixth spatial reuse field, and where, when the preset frequency band is a 320 MHz band, the first to fourth spatial reuse fields are set at a lower value between the values ​​of the fifth and sixth spatial reuse fields.

13. The method according to claim 12, wherein when the preset frequency band is the 20 MHz band, the values ​​of the first to fourth spatial reuse fields are spatial reuse values ​​for the 20 MHz band.

14. The method according to claim 12, wherein when the preset frequency band is the 40 MHz band, the values ​​of the first and third spatial reuse fields are spatial reuse values ​​for a first 20 MHz subchannel having a low frequency in the 40 MHz band, and the values ​​of the second and fourth spatial reuse fields are spatial reuse values ​​for a second 20 MHz subchannel having a high frequency in the 40 MHz band.

15. The method according to claim 12, wherein when the preset frequency band is the 80 MHz band, the value of the first spatial reuse field is a spatial reuse value q LOzcn / eznz / q / YiAi 208 for the first lowest 20 MHz subchannel in the 80 MHz band, the value of the second spatial reuse field is a spatial reuse value for a second 20 MHz subchannel that is the second lowest in the 80 MHz band, the value of the third spatial reuse field is a spatial reuse value for a third 20 MHz subchannel that is the second highest in the 80 MHz band, and the value of the fourth spatial reuse field is a spatial reuse value for the fourth 20 MHz subchannel that is the highest in the 80 MHz band.

16. The method according to claim 12, wherein when the preset frequency band is the 160 MHz band, the value of the first spatial reuse field is a spatial reuse value for the first lowest 40 MHz subchannel in the 160 MHz band, the value of the second spatial reuse field is a spatial reuse value for a second lowest 40 MHz subchannel in the 160 MHz band, the value of the third spatial reuse field is a spatial reuse value for a third highest 40 MHz subchannel in the 160 MHz band, and the value of the fourth spatial reuse field is a spatial reuse value for the highest highest 40 MHz subchannel in the 160 MHz band.

17. The method according to claim 209, wherein when the preset frequency band is the 320 MHz band, the value of the first spatial reuse field is a spatial reuse value representing a first 40 MHz subchannel having the lowest frequency within each 160 MHz channel of the 320 MHz band, the value of the second spatial reuse field is a spatial reuse value representing a second 40 MHz subchannel having the second lowest frequency within each 160 MHz channel of the 320 MHz band, and the value of the third spatial reuse field is a spatial reuse value representing a third 40 MHz subchannel having the second highest frequency within each 160 MHz channel of the 320 MHz band.and the value of the fourth spatial reuse field is a spatial reuse value that represents a fourth 40 MHz subchannel that has the highest frequency within each 160 MHz channel of the 320 MHz band.

18. A transmitting station (TS) in a wireless local area network (WLAN) system, wherein the transmitting TS comprises: a memory; a transceiver; and a processor operatively connected to the memory and the transceiver, wherein the processor is configured to: transmit an activation frame to a receiving TS; and receive an activation-based physical protocol data unit (TB PPDU) from the receiving TS across a preset frequency band, wherein the activation frame includes a common information field and a special user information field, wherein the common information field includes the first four spatial reuse fields, wherein the special user information field includes the fifth and sixth spatial reuse fields, wherein the preset frequency band is a 20 MHz band,The first to fourth spatial reuse fields are set to a value of the fifth spatial reuse field, wherein when the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value of the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value of the sixth spatial reuse field, wherein when the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field, wherein when the preset frequency band is a 160 MHz band,The first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field, and wherein when the preset frequency band is a 320 MHz band, the first to fourth spatial reuse fields are set to a lower value between the values ​​of the fifth and sixth spatial reuse fields.

19. A computer-readable medium comprising an instruction executed by at least one processor and carrying out a method comprising the steps of: receiving an activation frame from a transmitting station (TS); and transmitting a physical protocol activation-based data unit (TPD) over a preset frequency band to the transmitting TS, wherein the activation frame includes a common information field and a special user information field, wherein the common information field includes the first four spatial reuse fields, wherein the special user information field includes the fifth and sixth spatial reuse fields, wherein when the preset frequency band is a 20 MHz band, the first four spatial reuse fields are set to a value of the fifth spatial reuse field.where when the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value of the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value of the sixth spatial reuse field, where when the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value of the sixth spatial reuse field, where when the preset frequency band is a 160 MHz band, the first and second spatial reuse fields are set to a value of the fifth spatial reuse field,and the third and fourth spatial reuse fields are set at a value of the sixth spatial reuse field, and where, when the preset frequency band is a 320 MHz band, the first to fourth spatial reuse fields are set at a lower value between the values ​​of the fifth and sixth spatial reuse fields.

20. A device in a wireless local area network (WLAN) system, the device comprising: a memory; and a processor cooperatively connected to the memory, wherein the processor is configured to: receive an activation frame from a transmitting station (STA); and transmit a physical protocol activation-based data unit (TB PPDU) over a preset frequency band to the transmitting STA, wherein the activation frame includes a common information field and a special user information field, wherein the common information field includes first to fourth spatial reuse fields, and wherein the special user information field includes fifth and sixth spatial reuse fields, wherein when the preset frequency band is a 20 MHz band, the first to fourth spatial reuse fields are set to a value of the fifth spatial reuse field.Wherein, when the preset frequency band is a 40 MHz band, the first and third spatial reuse fields are set to a value from the fifth spatial reuse field, and the second and fourth spatial reuse fields are set to a value from the sixth spatial reuse field; whereas, when the preset frequency band is an 80 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field; whereas, when the preset frequency band is a 160 MHz band, the first and second spatial reuse fields are set to a value from the fifth spatial reuse field, and the third and fourth spatial reuse fields are set to a value from the sixth spatial reuse field.yq LOzcn / eznz / q / YiAi 215 where, when the preset frequency band is a 320 MHz band, the first to fourth spatial reuse fields are set at a lower value between the values ​​of the fifth and sixth spatial reuse fields.