Method for wireless communication, transmitter and receiver

Description

1 / 79 METHOD FOR WIRELESS COMMUNICATION, TRANSMITTER AND RECEIVER FIELD OF TECHNIQUE

[001] The methods of dissemination refer to the field of communication and, in particular, to a method of wireless communication, a transmitter and a receiver. BACKGROUND

[002] Low latency and high reliability transmission is the focus of next-generation wireless fidelity (Wi-Fi). During the transmission of a low-latency service, when an access point (AP) detects that all channels are available, the AP transmits a Physical Layer Protocol Data Unit (PPDU). However, on one side of the station (STA), short-term or random interference may occur on a specific 20 MHz subchannel (but cannot be detected on the AP side). As a result, the STA cannot correctly decode the data and therefore cannot respond with an acknowledgment (ACK), leading to multiple retransmissions by the AP and relatively long latency. SUMMARY

[003] A method for wireless communication, a transmitter and a receiver are provided in the disclosure. The transmitter can perform data duplication transmission in the frequency domain, which is conducive to improving the reliability of data transmission and reducing transmission latency caused by data retransmission.

[004] In a first aspect, a method for wireless communication is provided. The method includes the following. A transmitter transmits a first ultra-high reliability physical layer protocol data unit (PPDU). Petition 870250089290, dated 10 / 01 / 2025, page 9 / 211 2 / 79 (UHR). The first UHR ELR PPDU contains a data field, the data field is transmitted N times at a granularity of one first feature unit in the frequency domain at a bandwidth of the first UHR ELR PPDU, and N is a positive integer greater than 1.

[005] In a second aspect, a method for wireless communication is provided. The method includes the following. A receiver receives a first UHR ELR PPDU transmitted by a transmitter. The first UHR ELR PPDU contains a data field, the data field is transmitted N times at a granularity of one first feature unit in the frequency domain at a bandwidth of the first UHR ELR PPDU, and N is a positive integer greater than 1.

[006] In a third aspect, a transmitter is provided. The transmitter is configured to execute the method in the first aspect or implementations thereof.

[007] Specifically, the station device includes functional modules to execute the method in the first aspect or implementations thereof.

[008] In a fourth aspect, a receiver is provided. The receiver is configured to execute the method in the second aspect or implementations thereof.

[009] Specifically, the access point device includes functional modules to execute the method in the second aspect or implementations thereof.

[0010] In a fifth aspect, a transmitter is provided. The transmitter includes a processor and memory. The memory is configured to store a computer program. The processor is configured to invoke and execute the computer program stored in memory, to Petition 870250089290, dated 10 / 01 / 2025, page 10 / 211 3 / 79 perform the method in the first aspect or implementations thereof.

[0011] In a sixth aspect, a receiver is provided. The receiver includes a processor and memory. The memory is configured to store a computer program. The processor is configured to invoke and execute the computer program stored in memory, to perform the method in the second aspect or implementations thereof.

[0012] In a seventh aspect, a chip is provided. The chip is configured to implement the method in any one of the first aspect, the second aspect, or implementations thereof. Specifically, the chip includes a processor. The processor is configured to invoke and execute a computer program stored in memory, to cause a device equipped with the chip to perform the method in any one of the first aspect, the second aspect, or implementations thereof.

[0013] In an eighth aspect, a computer-readable storage medium is provided. The computer-readable storage medium is configured to store a computer program that causes a computer to perform the method in any one of the first aspect, the second aspect, or implementations thereof.

[0014] In a ninth aspect, a computer program product is provided. The computer program product includes computer program instructions that cause a computer to perform the method in any one of the first aspect, the second aspect, or implementations thereof.

[0015] In a tenth aspect, a Petition 870250089290, dated 10 / 01 / 2025, page 11 / 211 4 / 79 Computer program. The computer program, when executed by a computer, causes the computer to perform the method in any one of the first aspect, the second aspect, or implementations thereof.

[0016] With the technical solution, the transmitter can perform the duplication transmission of a data field in a UHR PPDU over / on / in a granularity of a first field unit in the frequency domain, thus ensuring the reliability of data transmission and reducing transmission latency caused by data retransmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic architectural diagram of a communication system provided in dissemination modalities.

[0018] Figure 2 is a schematic structural diagram of a non-high throughput (non-HT) physical layer protocol data unit (PPDU).

[0019] Figure 3 is a schematic interaction diagram of a wireless communication method provided in disclosure modalities.

[0020] Figure 4 is a schematic diagram of an ultra-high reliability (UHR) multi-user (MU) PPDU provided in disclosure modalities.

[0021] Figure 5 is a schematic diagram of a UHR trigger-based PPDU (TB) provided in disclosure modalities.

[0022] Figures 6 to 10 are schematic diagrams of a granularity of each field in a modulated UHR field provided in disclosure modalities. Petition 870250089290, dated 10 / 01 / 2025, page 12 / 211 5 / 79

[0023] Figure 11 is a schematic diagram of N multiple resource units (MRUs) for N duplication transmissions of a data field provided in disclosure modes.

[0024] Figure 12 is a schematic diagram of a UHR (UHR-SIG) field carrier resource units (RUs) / MRUs for MU data duplication transmission provided in broadcast modes.

[0025] Figure 13 is a schematic diagram illustrating the allocation of corresponding MRUs by an access point (AP) to multiple stations (STAs) provided in dissemination modes.

[0026] Figure 14 is a schematic diagram of a common information (info) field containing a duplication transmission mode field provided in the disclosure modalities.

[0027] Figure 15 is a schematic diagram of a user information field of the UHR variant that contains a duplication transmission mode field provided in the disclosure modes.

[0028] Figure 16 is a schematic diagram illustrating the allocation of MRUs for duplication transmission by an AP to multiple STAs provided in dissemination modes.

[0029] Figure 17 is a schematic block diagram of a transmitter provided in disclosure modalities.

[0030] Figure 18 is a schematic block diagram of a receiver provided in disclosure modalities.

[0031] Figure 19 is a block diagram. Petition 870250089290, dated 10 / 01 / 2025, page 13 / 211 6 / 79 schematic of a communication device provided in disclosure modalities.

[0032] Figure 20 is a schematic block diagram of a chip provided in disclosure embodiments.

[0033] Figure 21 is a schematic block diagram of a communication system provided in disclosure modalities. DETAILED DESCRIPTION

[0034] The following describes technical solutions of disclosure modalities with reference to the designs accompanying the disclosure modalities. Apparently, the modalities described in this document are only some modalities, rather than all modalities, of disclosure. Based on the disclosure modalities, all other modalities obtained by skilled individuals without creative effort should fall within the scope of disclosure protection.

[0035] The technical solutions of the dissemination modalities can be applied to various communication systems, for example, wireless local area networks (WLAN), wireless fidelity (Wi-Fi) or other communication systems.

[0036] For example, Figure 1 illustrates a communication system 100 to which the dissemination modalities are applied. The communication system 100 may include an access point (AP) 110 and a station (STA) 120 accessing a network through the AP 110. [003Ί] In some scenarios, the AP may be called an AP STA, meaning the AP is also a type of STA in some sense.

[0038] In some scenarios, the STA may be referred to Petition 870250089290, dated 10 / 01 / 2025, p. 14 / 211 7 / 79 as a non-AP STA.

[0039] Communication in the communication system 100 could be communication between the AP and a non-AP STA, communication between non-AP STAs, or communication between the STA and a partner STA. The partner STA could refer to a device that is in point-to-point communication with the STA. For example, the partner STA could be an AP or a non-AP STA.

[0040] An AP can be a bridge to connect a wired network and a wireless network. The AP is mainly used to connect multiple wireless network clients and then connect the wireless network to an Ethernet port. The AP can be a terminal device (e.g., a mobile phone) with a Wi-Fi chip or a network device (e.g., a router).

[0041] It can be understood that the role of the STA in the communication system is not absolute. For example, in some scenarios, when a cell phone is connected to a router, the cell phone is an STA, not an AP. When the cell phone is an access point for another cell phone, the cell phone serves as an AP.

[0042] AP and non-AP STA can be vehicle-to-everything (V2X) applied devices; Internet of Things (IoT) nodes, sensors, etc. in IoT; smart cameras, smart remote controls, smart water meters and smart electricity meters, etc. in smart homes; sensors in smart cities, etc.

[0043] In some configurations, the non-AP STA can support various current and future 802.11 WLAN standards, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, etc. Petition 870250089290, dated 10 / 01 / 2025, p. 15 / 211 8 / 79

[0044] In some embodiments, the AP may be a device that supports multiple current and future 802.11 WLAN standards, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, etc.

[0045] In terms of disclosure, the STA can be a device that supports WLAN / Wi-Fi technology, such as a mobile phone, a tablet (pad), a computer, a virtual reality (VR) device, an augmented reality (AR) device, a wireless device in industrial control, a decoder, a wireless device in autonomous driving, a communication device in a vehicle, a wireless device in remote medicine, a wireless device in a smart network, a wireless device in transport security, a wireless device in a smart city or a wireless device in a smart home, or a wireless communication chip / an application-specific integrated circuit (ASIC) / a system on a chip (SOC), etc.

[0046] A frequency band supported by WLAN technology may include, without limitation, a low-frequency band (e.g., 2.4 Giga Hertz (GHz), 5 GHz and 6 GHz) and a high-frequency band (e.g., 60 GHz).

[0047] Figure 1 illustrates, by way of example, an AP STA and two non-AP STAs. Optionally, the communication system 100 may include several AP STAs and other quantities of non-AP STAs, which is not limited in terms of dissemination modalities.

[0048] It can be understood that, in the modalities of dissemination, a device with communication functions in a network / system can be referred to as a communication device. Taking the communication system 100 illustrated Petition 870250089290, dated 10 / 01 / 2025, p. 16 / 211 9 / 79 in Figure 1 as an example, the communication device may include AP 110 and STA(s) 120 which have communication functions. AP 110 and STA(s) 120 may be the devices described above and will not be repeated in this document. The communication device may additionally include other devices, such as a network controller, a gateway, or other network entities in the communication system 100, which is not limited in the disclosure modalities.

[0049] It may be understood that the terms system and network contained in this document are generally used interchangeably throughout this disclosure. The term and / or in this document describes only an association between associated objects, meaning that there can be three relationships. For example, A and / or B can mean A alone, both A and B exist, and B alone. Additionally, the character / in this document generally indicates that the associated objects are in an or relationship.

[0050] It can be understood that the indication referred to in the disclosure methods may be a direct indication, may be an indirect indication, or may mean that there is an association. For example, A indicates that B may mean that A directly indicates B, for example, B can be obtained according to A; it may mean that A indirectly indicates B, for example, A indicates C and B can be obtained according to C; or it may mean that there is an association between A and B.

[0051] In the elaboration of disclosure modalities, the term correspondence may mean that there is a direct or indirect correspondence between the two, or it may mean that there is an association between the two, or Petition 870250089290, dated 10 / 01 / 2025, p. 17 / 211 10 / 79 can mean a relationship of indicating and being indicated, or configuring and being configured, etc.

[0052] In disclosure modalities, the predefined can be implemented by pre-storing a corresponding code(s) or a corresponding table(s) in a device (e.g., including the AP and the STA) or in other ways that can be used to indicate related information, and disclosure is not limited in this respect. For example, predefined can mean defined in a protocol.

[0053] To facilitate understanding of the technical solutions of disclosure modalities, the terms related to the disclosure will be described below.

[0054] Association identifier (AID), which is used to identify a terminal associated with an AP.

[0055] Media Access Control (MAC), which is an abbreviation for a MAC address.

[0056] Transmission Opportunity (TXOP), which refers to a period of time in which a terminal with the TXOP can initiate one or more transmissions.

[0057] To facilitate understanding of the technical solutions of disclosure modalities, the transmission of non-high-throughput (non-HT) duplicate physical layer protocol data units (PPDUs) related to disclosure will be described.

[0058] Non-HT duplicated PPDU transmission refers to the duplication of a non-HT PPDU by 20 megahertz (MHz). As illustrated in Figure 2, the non-HT PPDU contains only one legacy short training field (L-STF), one legacy long training field (L-LTF), and one legacy signal field (L Petition 870250089290, dated 10 / 01 / 2025, page 18 / 211 11 / 79 (GIS) and a data field. Non-HT duplicate transmission is used to transmit to non-HT STAs, HT STAs, very high throughput (VHT) STAs, high-efficiency (HE) STAs, and extremely high throughput (EHT) STAs that may be present in a portion of a 40 MHz, 80 MHz, 160 MHz, or 320 MHz channel. Some control frames, for example, Request to Send (RTS), Clear to Send (CTS), or Null Data PPDU Announcement (NDPA), are transmitted in the form of non-HT duplicate transmission.

[0059] To facilitate understanding of the technical solutions for disclosure methods, the duplicate transmission of EHT (EHT DUP) related to disclosure will be described.

[0060] EHT DUP transmission refers to the duplication of transmitted data in a payload portion of an EHT PPDU in the frequency domain, which is proposed to address the limitations of a 6 GHz power spectral density (PSD) and has the following features: An EHT DUP mode is an optional mode in IEEE 802.11be and is applicable only in the 6 GHz frequency band; An EHT DUP mode is only applicable to a single-user (SU) EHT transmission; An EHT DUP mode can only be used with a bandwidth of 80 / 160 / 320 MHz and without preamble piercing; An EHT DUP mode is applicable only in conjunction with binary phase-shift keying (BPSK), dual carrier modulation (DCM) (BPSK-DCM), rate-1 / 2 modulation (i.e., EHT encoding and modulation scheme (MCS) 14), low-density parity-check code (LDPC) encoding, and only one spatial stream. Petition 870250089290, dated 10 / 01 / 2025, page 19 / 211 12 / 79

[0061] For example, for DUP transmission of an 80 MHz EHT PPDU, a STA duplicates data from the lower 40 MHz to the higher 40 MHz, and BPSK-DCM modulation is used for data in the lower 40 MHz.

[0062] DCM refers to the modulation of the same information on a pair of subcarriers. DCM is a modulation scheme for EHT-GIS and data fields, which is applied to EHT-MCS 14 and EHT-MCS 15. DCM is applicable only to BPSK, 1 / 2 rate encoding and single spatial stream MIMO (multiple input multiple output) transmission.

[0063] Preamble piercing refers to the transmission of a PPDU in which no signal is present in at least one of the 20 MHz subchannels within the PPDU bandwidth. In the event that an AP or STA detects via free channel assessment (CCA) that a 20 MHz subchannel is occupied, the AP or STA may pierce the 20 MHz subchannel.

[0064] Low latency and high reliability transmission is the focus of next-generation Wi-Fi. During the transmission of a low-latency service, when an AP detects that all channels are available, the AP transmits a PPDU. However, on one side of the STA, random or short-term interference may occur on a specific 20 MHz subchannel (but may not be detected on the other side of the AP). As a result, the STA cannot correctly decode the data and therefore cannot respond with an acknowledgment (ACK), leading to multiple retransmissions by the AP and relatively long latency.

[0065] To solve the above problems, transmission reliability is improved by means of Petition 870250089290, dated 10 / 01 / 2025, page 20 / 211 13 / 79 data duplication in the frequency domain.

[0066] However, non-HT duplicate PPDU transmission is intended for compatibility with legacy STA transmission and the reception of some control frames, such as a CTS frame and an RTS frame. Due to its limited preamble field, a non-HT PPDU format is less efficient than a HE / EHT / ultra-high reliability (UHR) PPDU. For example, a non-HT PPDU does not support high-order modulation such as 1024-QAM and 4096-QAM quadrature amplitude modulation, and does not support orthogonal frequency division multiple access (OFDMA) transmission. At the same bandwidth, the number of data subcarriers available for non-HT PPDU is 1 / 4 of the number of data subcarriers available for HE / EHT / UHR PPDU.

[0067] EHT DUP transmission has a relatively limited application scenario, as it can only operate in the 6 GHz frequency band without any punched channels and uses low-order BPSK modulation. DCM allows duplication only once and is applicable only to low-order BPSK modulation and single-space stream non-MU-MIMO transmission.

[0068] Based on the above duplication transmission modes, in the case where a transmitter detects interference occurring on a given 20 MHz subchannel, the transmitter does not use the 20 MHz subchannel by means of preamble punching. However, in some cases, the transmitter may not be able to detect an interference channel on a receiver, and therefore a channel used by the transmitter for data may be the receiver's interference channel, resulting in data transmission failure.

[0069] So how to design a PPDU format Petition 870250089290, dated 10 / 01 / 2025, pages 21 / 211 14 / 79 to ensure the reliable and efficient transmission of a service is an urgent problem to be solved.

[0070] To facilitate understanding of the technical solutions for disclosure methods, the technical solutions for disclosure methods will be elaborated below. The technique listed below, as an optional scheme, may be arbitrarily combined with the technical solutions for disclosure methods, which must fall within the scope of protection of the disclosure methods. The disclosure methods include at least part of the content to be followed.

[0071] Figure 3 is a schematic interaction diagram of a method 200 for wireless communication according to the disclosure modalities. As illustrated in Figure 3, method 200 includes the following.

[0072] S210, a transmitter transmits a first UHR ELR PPDU.

[0073] Similarly, a receiver receives the first UHR ELR PPDU.

[0074] The first UHR ELR PPDU contains / includes a data field(s), the data field(s) is / are transmitted N times over a granularity of a first feature unit in the frequency domain at a bandwidth of the first UHR ELR PPDU and N is a positive integer greater than 1.

[0075] That is, the data field(s) in the first UHR ELR PPDU are transmitted multiple times. In other words, the data field(s) in the first UHR ELR PPDU are transmitted in a duplication transmission mode. In other words, the first UHR PPDU is a UHR duplication PPDU.

[0076] In some modalities, the size of Petition 870250089290, dated 10 / 01 / 2025, page 22 / 211 15 / 79 The first feature unit in the frequency domain can be considered as a data field duplication transmission granularity, which can also be called a data field duplication transmission unit.

[0077] In some embodiments, the number N of data field transmissions may also be referred to as the number of data field duplication transmissions. In some other embodiments, the first data field transmission may be considered an initial transmission, and a transmission after the first transmission is a duplication transmission. In this case, the number of data field duplication transmissions is N-1.

[0078] It may be noted that in the following modalities, as an example, the number of duplication transmissions is the total number N of transmissions, but the disclosure is not limited in this respect. The number of duplication transmissions can also be replaced by N-1.

[0079] In some modes, the transmitter is an AP or a STA.

[0080] Similarly, the receiver can be a STA or an AP.

[0081] In other words, the first UHR ELR PPDU can be a downlink UHR PPDU or an uplink UHR PPDU.

[0082] In some embodiments, the first UHR ELR PPDU may be an SU UHR PPDU, a UHR MU PPDU, or a trigger-based PPDU (TB) UHR. The UHR MU PPDU may be used for data transmission to one or more users, i.e., a receiver of the UHR MU PPDU may be one or more users. The UHR TB PPDU is transmitted in response to a trigger frame. Petition 870250089290, dated 10 / 01 / 2025, page 23 / 211 16 / 79

[0083] Figure 4 is a schematic diagram of a UHR MU PPDU provided in disclosure embodiments. As illustrated in Figure 4, the UHR MU PPDU may contain the following fields: an L-STF, an L-LTF, an LSIG field, a repeated L-SIG field, a universal signal field (USIG), a UHR signal field (UHR-SIG), a short UHR training field (UHR-STF), a long UHR training field (UHRLTF), a data field, and a packet extension (PE) field.

[0084] The L-STF, L-LTF, L-SIG, RL-SIG, USIG and UHR-SIG fields can be called pre-UHR modulated fields, and the UHR-STF, UHR-LTF, data and PE fields can be called UHR modulated fields.

[0085] Figure 5 is a schematic diagram of a UHR TB PPDU provided in disclosure modalities. As illustrated in Figure 5, the UHR TB PPDU may contain the following fields: L-STF, L-LTF, L-SIG, RL-SIG, USIG, UHR-STF, UHR-LTF, data and PE.

[0086] The L-STF, L-LTF, L-SIG, RL-SIG and USIG fields can be called pre-UHR modulated fields, and the UHR-STF, UHR-LTF, data and PE fields can be called UHR modulated fields.

[0087] In some modalities, the duration of the UHR-STF in the UHR TB PPDU is twice the duration of the UHR-STF in the UHR MU PPDU.

[0088] In some embodiments, for the first UHR ELR PPDU, each UHR-LTF symbol has the same guard interval (GI) duration as each data symbol, which may be, for example, 0.8 με, 1.6 μs or 3.2 με.

[0089] In some forms, UHR-LTF includes three types: 1x UHR-LTF, 2x UHR-LTF, and 4x UHR-LTF. The duration of Petition 870250089290, dated 10 / 01 / 2025, pp. 24 / 211 17 / 79 Each 1x UHR-LTF, 2x UHR-LTF, or 4x UHR-LTF symbol without GI can be 3.2 ps, 6.4 μs, or 12.8 ps. Each data symbol without GI is 12.8 ps.

[0090] In some embodiments, one or more of the N1 data field duplication transmissions have a phase rotation offset relative to the first data field transmission.

[0091] For example, one or more data field duplication transmissions are obtained by applying a certain phase rotation to the first data field transmission, which is conducive to reducing a peak-to-average power ratio (PAPR) of the data transmission.

[0092] It can be noted that a unit of the first resource unit in the frequency domain is not limited in terms of dissemination modalities. For example, the first resource unit in the frequency domain can be a channel or a subchannel, or it can be a resource unit (RU) or a multiple resource unit (MRU).

[0093] As an example, the specific implementation of the UHR duplication PPDU will be described below in combination with mode 1, in which the first feature unit in the frequency domain is a subchannel, and mode 2, in which the first feature unit in the frequency domain is a RU / MRU.

[0094] Mode 1: the first resource unit in the frequency domain is a subchannel.

[0095] In other words, the transmitter can perform duplicate transmission of a UHR PPDU at a subchannel granularity, thereby improving the reliability of the UHR PPDU transmission and reducing transmission latency caused by Petition 870250089290, dated 10 / 01 / 2025, page 25 / 211 18 / 79 data retransmission.

[0096] In some embodiments, the transmitter may divide the bandwidth of the first UHR ELR PPDU into N subchannels, encode the data field in the first PAR subchannel, and then duplicate the data field to the other N-1 subchannels. For example, during the duplication of the data field to the other N-1 subchannels, a certain phase rotation may be applied. That is, the data fields in the other N-1 subchannels may have a certain phase rotation offset relative to the data field in the first subchannel.

[0097] In some embodiments, a bandwidth of the first resource unit in the frequency domain is predefined. For example, the bandwidth of the first resource unit in the frequency domain is a fixed bandwidth, for example, fixed at 20 MHz, 40 MHz and the like.

[0098] In some other embodiments, the bandwidth of the first resource unit in the frequency domain is determined by the transmitter. For example, the transmitter may determine a granularity of the duplication transmission and indicate the granularity of the duplication transmission to the receiver. For example, the transmitter may indicate the granularity of the duplication transmission in the first UHR ELR PPDU.

[0099] In some other embodiments, a bandwidth of the first resource unit in the frequency domain is determined by the receiver. For example, the receiver may indicate a granularity of the duplication transmission to the transmitter, and furthermore, the transmitter may perform the data field duplication transmission based on the granularity of the duplication transmission. In one embodiment Petition 870250089290, dated 10 / 01 / 2025, pp. 26 / 211 Specifically, for a UHR TB PPDU, an AP can configure a duplication transmission granularity for a STA via a trigger frame, and furthermore, the STA can perform duplication transmission of a data field based on the duplication transmission granularity.

[00100] In other words, the transmitter and receiver have a consistent understanding of the bandwidth of the first resource unit in the frequency domain. As such, the transmitter can perform duplication transmission of a data field based on a duplication transmission granularity, and correspondingly, the receiver can receive, based on the duplication transmission granularity, the data field that is subject to duplication transmission.

[00101] In some embodiments, the bandwidth of the first feature unit in the frequency domain is related to the bandwidth of the first UHR ELR PPDU. For example, the bandwidth of the first feature unit in the frequency domain is determined based on the bandwidth of the first PPDU UHR.

[00102] For example, when the bandwidth of the first PPDU UHR is 40 MHz, 80 MHz, or 160 MHz, the bandwidth of the first resource unit in the frequency domain can be 20 MHz.

[00103] For another example, when the bandwidth of the first UHR ELR PPDU is 320 MHz, 480 MHz, or 640 MHz, the bandwidth of the first resource unit in the frequency domain can be 40 MHz or 80 MHz.

[00104] In some modes, the number N of data field duplication transmissions in the first UHR ELR PPDU is predefined. For example, N is a fixed value, for Petition 870250089290, dated 10 / 01 / 2025, page 27 / 211 20 / 79 example, fixed at 2, 4 or 8.

[00105] In some other embodiments, the number N of data field duplication transmissions in the first UHR ELR PPDU is determined by the transmitter. For example, the transmitter may determine the number N of duplication transmissions and indicate the number N of duplication transmissions to the receiver. For example, the transmitter may indicate the number N of duplication transmissions in the first UHR ELR PPDU.

[00106] In some other embodiments, the number N of data field duplication transmissions in the first UHR ELR PPDU is determined by the receiver. For example, the receiver may indicate the number N of duplication transmissions to the transmitter, and furthermore, the transmitter may perform data field duplication transmission based on the number N of duplication transmissions. In a specific embodiment, for a UHR TB PPDU, an AP may configure the number N of duplication transmissions for a STA via a trigger frame, and furthermore, the STA may perform data field duplication transmission based on the number N of duplication transmissions.

[00107] That is, the transmitter and receiver have a consistent understanding of the number N of duplication transmissions. As such, the transmitter can perform the duplication transmission of a data field based on the number N of duplication transmissions and, correspondingly, the receiver can receive based on the number N of duplication transmissions the data field that is subject to the duplication transmission.

[00108] In some modalities, the number N of Petition 870250089290, dated 10 / 01 / 2025, pages 28 / 211 21 / 79 data field duplication transmissions in the first UHR ELR PPDU is related to the bandwidth of the first UHR ELR PPDU. For example, the number N of duplication transmissions is determined based on the bandwidth of the first UHR ELR PPDU.

[00109] For example, when the bandwidth of the first PPDU UHR is 40 MHz, 80 MHz, or 160 MHz, the number of data field duplication transmissions in the first PPDU UHR is 2, 4, or 8.

[00110] For another example, when the bandwidth of the first UHR ELR PPDU is 320 MHz, 480 MHz, or 640 MHz, the number of data field duplication transmissions in the first UHR ELR PPDU is 8, 12, or 16.

[00111] As a specific example, the granularity B of the duplication transmission and the number N of duplication transmissions that are flexibly configured based on the bandwidth of the first UHR ELR PPDU can be illustrated in Table 1. TABLE 1 Bandwidth of the first UHR ELR PPDU N=2 N=4 N=8 Granularity B of the duplication transmission (i.e., bandwidth of the first resource unit in the frequency domain) 40 MHz 20 MHz 80 MHz 40 MHz 20 MHz 160 MHz 80 MHz 40 MHz 20 MHz 320 MHz 160 MHz 80 MHz 40 MHz 480 MHz 240 MHz 120 MHz 60 MHz 640 MHz 320 MHz 160 MHz 80 MHz

[00112] As can be seen in Table 1, when the bandwidth of the first UHR ELR PPDU is 40 MHz, the Petition 870250089290, dated 10 / 01 / 2025, pages 29 / 211 22 / 79 granularity of data field duplication transmission in the first UHR ELR PPDU can be 20 MHz, and the number N of data field duplication transmissions in the first UHR ELR PPDU can be 2.

[00113] When the bandwidth of the first UHR ELR PPDU is 80 MHz, the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 20 MHz, and the number N of data field duplication transmissions in the first UHR ELR PPDU can be 4; or the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 40 MHz, and the number N of data field duplication transmissions in the first UHR ELR PPDU can be 2.

[00114] When the bandwidth of the first UHR ELR PPDU is 160 MHz, the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 80 MHz, and the number N of data field duplication transmissions in the first UHR ELR PPDU can be 2; the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 40 MHz and the number N of data field duplication transmissions in the first PPDU UHR can be 4; or the granularity of the data field duplication transmission in the first PPDU UHR can be 20 MHz, and the number N of data field duplication transmissions in the first PPDU UHR can be 8.

[00115] When the bandwidth of the first PPDU UHR is 320 MHz, the granularity of the data field duplication transmission in the first PPDU UHR can be 160 MHz, and the number N of data field duplication transmissions in the first PPDU UHR can be 2; the transmission granularity Petition 870250089290, dated 10 / 01 / 2025, page 30 / 211 23 / 79 data field duplication in the first PPDU UHR can be 80 MHz and the number N of data field duplication transmissions in the first PPDU UHR can be 4; or the granularity of the data field duplication transmission in the first PPDU UHR can be 40 MHz, and the number N of data field duplication transmissions in the first PPDU UHR can be 8.

[00116] When the bandwidth of the first UHR ELR PPDU is 480 MHz, the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 240 MHz, and the number N of data field duplication transmissions in the first UHR ELR PPDU can be 2; the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 120 MHz and the number N of data field duplication transmissions in the first UHR PPDU can be 4; or the granularity of the data field duplication transmission in the first UHR PPDU can be 60 MHz, and the number N of data field duplication transmissions in the first UHR PPDU can be 8.

[00117] When the bandwidth of the first UHR ELR PPDU is 640 MHz, the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 320 MHz, and the number N of data field duplication transmissions in the first UHR ELR PPDU can be 2; the granularity of the data field duplication transmission in the first UHR ELR PPDU can be 160 MHz and the number N of data field duplication transmissions in the first UHR PPDU can be 4; or the granularity of the data field duplication transmission in the first UHR PPDU can be 80 MHz, and the number N of data field duplication transmissions in the first UHR PPDU can be 8. Petition 870250089290, dated 10 / 01 / 2025, page 31 / 211 24 / 79

[00118] It may be noted that the association relationships, as illustrated in Table 1, are merely taken as examples, and the disclosure is not limited in this respect. In practice, only part of the association relationships in Table 1 may be included, for example, only one association relationship between a UHR PPDU bandwidth and the granularity B of the duplication transmission is included. Alternatively, only one association relationship between the UHR PPDU bandwidth and the number N of duplication transmissions may be included. Alternatively, only one association relationship corresponding to part of the bandwidths above the UHR PPDU may be included, for example, only one association relationship when the UHR PPDU bandwidth is greater than 80 MHz (or greater than 40 MHz or greater than 160 MHz) is included.Alternatively, when the bandwidth of the UHR PPDU is greater than 640 MHz, Table 1 may contain more association relationships, and disclosure is not limited in this respect.

[00119] In some modes, the association relationships in Table 1 may be predefined. When the granularity of the duplication transmission or the number of duplication transmissions is undefined in some cases, the duplication transmission may not be performed by default. Alternatively, the duplication transmission may be performed by default based on the predefined granularity of the duplication transmission or the predefined number of duplication transmissions.

[00120] In some embodiments, a modulated UHR field in the first UHR ELR PPDU includes the data field, a UHR-STF and a UHR-LTF, and a granularity of each of the UHR-STF, Petition 870250089290, dated 10 / 01 / 2025, page 32 / 211 25 / 79 the UHR-LTF and a pilot subcarrier of the modulated UHR field is the first feature unit in the frequency domain.

[00121] In other words, the data field, the UHT-STF and the UHT-LTF in the modulated UHR field, as well as the pilot subcarrier of the modulated UHR field, are all built based on the bandwidth of the first resource unit in the frequency domain.

[00122] In some other embodiments, a granularity of each of the UHR-STF and UHR-LTF in the modulated UHR field in the first UHR ELR PPDU and the pilot subcarrier of the modulated UHR field is a second resource unit in the frequency domain.

[00123] That is, the data field in the UHR modulated field is constructed based on the bandwidth of the first feature unit in the frequency domain, and the UHR-STF and UHR-LTF in the UHR modulated field and the pilot subcarrier of the UHR modulated field are constructed based on a bandwidth of the second feature unit in the frequency domain.

[00124] In some embodiments, the bandwidth of the second frequency domain resource unit is determined based on the bandwidth of the first UHR ELR PPDU.

[00125] For example, the bandwidth of the second feature unit in the frequency domain is equal to the bandwidth of the first UHR ELR PPDU or is equal to half the bandwidth of the first UHR ELR PPDU.

[00126] The specific implementation of a construction granularity for each field in the modulated UHR field will be described in combination with specific examples illustrated in Figures 6 to 10. Petition 870250089290, dated 10 / 01 / 2025, page 33 / 211 26 / 79

[00127] In the examples in Figures 6 to 8, the bandwidth of the first UHR ELR PPDU is 80 MHz, the granularity of the duplication transmission (i.e., the first feature unit in the frequency domain) of the data field is 20 MHz, and the number N of data field duplication transmissions is equal to 4. The transmitter encodes the data field in the first 20 MHz subchannel, where the encoded data field is denoted by X. Then, the transmitter duplicates X to the second, third, and fourth 20 MHz subchannels in the frequency domain, respectively, and applies a corresponding phase rotation, for example, [1,1,-1,1].

[00128] In the example in Figure 6, the UHR-STF, the UHRLTF, and the pilot subcarrier in the modulated UHR field are all built based on the 80 MHz bandwidth of the first UHR ELR PPDU.

[00129] In the example in Figure 7, the UHR-STF, the UHRLTF, and the pilot subcarrier in the modulated UHR field are constructed based on the granularity (i.e., 20 MHz) of the data field duplication transmission.

[00130] In the example in Figure 8, the UHR-STF, the UHRLTF, and the pilot subcarrier in the modulated UHR field are built on the basis of 40 MHz, which is twice the granularity (i.e., 20 MHz) of the data field duplication transmission and, in other words, built on the basis of half the bandwidth of the first UHR ELR PPDU.

[00131] In the examples in Figures 9 and 10, the bandwidth of the first UHR ELR PPDU is 320 MHz, the granularity of the duplication transmission (i.e., the first feature unit in the frequency domain) of the data field is 80 MHz, and the number N of duplication transmissions of the field is Petition 870250089290, dated 10 / 01 / 2025, page 34 / 211 27 / 79 data equals 4. The data field is encoded in the first 80 MHz subchannel, where the encoded data field is indicated by X. Then, X is duplicated for the second, third, and fourth 80 MHz subchannels in the frequency domain, respectively, and a corresponding phase rotation is applied, for example, [-1,-1,-1,1].

[00132] In the example in Figure 9, the UHR-STF, the UHRLTF, and the pilot subcarrier in the modulated UHR field are all built based on the 320 MHz bandwidth of the first UHR ELR PPDU.

[00133] In the example in Figure 10, the UHR-STF, the UHRLTF, and the pilot subcarrier in the modulated UHR field are constructed based on the granularity (i.e., 80 MHz) of the data field duplication transmission.

[00134] In some embodiments, the first UHR ELR PPDU contains the first information. The first information indicates the duplication transmission configuration of the first UHR ELR PPDU, for example, if a duplication transmission mode is used for the first UHR ELR PPDU, the granularity of the duplication transmission and the number of duplication transmissions of the data field, etc.

[00135] In some embodiments, the first information includes at least one of: first indication information indicating a duplication transmission mode for the first PPDU UHR or a duplication transmission mode for the data field in the first PPDU UHR; second indication information indicating the number N of duplication transmissions of the data field in the first PPDU UHR; or third indication information indicating a bandwidth of the first frequency domain unit of Petition 870250089290, dated 10 / 01 / 2025, page 35 / 211 28 / 79 appeal.

[00136] In some embodiments, the duplication transmission mode for the first UHR ELR PPDU may refer to whether the duplication transmission mode is enabled (or activated or used) for the first UHR ELR PPDU, in other words, whether the duplication transmission mode is enabled (or activated or used) for the data field in the first UHR ELR PPDU.

[00137] In some embodiments, the third indication information may indicate the granularity of the data field duplication transmission, for example, a subchannel bandwidth.

[00138] In some embodiments, the initial indication information may be carried in an existing field (e.g., a reserved field or a reserved bit) in the first PPDU UHR, or the initial indication information may be carried in a newly added field in the first PPDU UHR, which is not limited in disclosure.

[00139] In some modes, the first indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00140] For example, the initial indication information can be carried in a reserved field of the UHR-SIG field or the U-SIG field.

[00141] In some embodiments, the second indication information may be carried in an existing field (e.g., a reserved field or a reserved bit) in the first UHR ELR PPDU, or the second indication information may be carried in a newly added field in the first UHR ELR PPDU, which is not limited in disclosure. Petition 870250089290, dated 10 / 01 / 2025, page 36 / 211 29 / 79

[00142] In some embodiments, the second indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00143] For example, the second indication information can be carried in a reserved field of the UHR-SIG field or the U-SIG field.

[00144] In some embodiments, the third indication information may be carried in an existing field (e.g., a reserved field or a reserved bit) in the first UHR ELR PPDU, or the third indication information may be carried in a newly added field in the first UHR ELR PPDU, which is not limited in disclosure.

[00145] In some embodiments, the third indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00146] For example, third indication information can be carried in a reserved field of the UHR-SIG field or the U-SIG field.

[00147] In some embodiments, the first UHR ELR PPDU contains at least one of: a duplication transmission mode field indicating a duplication transmission mode for the first UHR ELR PPDU; a number of duplications field indicating the number N of duplication transmissions of the data field in the first UHR ELR PPDU; or a duplication field granularity indicating a bandwidth of a resource unit in the frequency domain for duplication transmission of the data field in the first UHR ELR PPDU.

[00148] In some embodiments, the duplication transmission mode field is carried in a UHR-SIG field. Petition 870250089290, dated 10 / 01 / 2025, page 37 / 211 30 / 79 or a U-SIG field in the first UHR ELR PPDU.

[00149] In some embodiments, the number of duplicates field is carried in a UHR-SIG field or a U-SIG field in the first UHR ELR PPDU.

[00150] In some embodiments, the granularity of the duplication field is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00151] In some modes, the duplication transmission mode field may be one bit, and values ​​other than one bit indicate whether the duplication transmission mode is enabled (or activated or used) for the first UHR ELR PPDU. For example, the value 1 indicates the activation of the duplication transmission mode and the value 0 indicates the deactivation of the duplication transmission mode. For another example, the value 0 indicates enabling the duplication transmission mode and the value 1 indicates disabling the duplication transmission mode.

[00152] In some embodiments, the number of duplicates field may be X bit(s), and different values ​​of X bit(s) indicate different numbers of duplicate transmissions. A value of X may be determined based on the number of possible values ​​of N. For example, when N has two possible values ​​(e.g., 2 and 4), the number of duplicates field may be one bit. Alternatively, when N has three possible values ​​(e.g., 2, 4, and 8), the number of duplicates field may be two bits.

[00153] As a specific example, the number of duplicates field is one bit, which indicates 2 duplicate transmissions and 4 duplicate transmissions, respectively.

[00154] For example, the value 1 of a bit indicates Petition 870250089290, dated 10 / 01 / 2025, page 38 / 211 31 / 79 duplication transmissions and the bit value 0 indicates 4 duplication transmissions.

[00155] For another example, a bit value of 0 indicates 2 duplication transmissions and a bit value of 1 indicates 4 duplication transmissions.

[00156] In some modes, when the bandwidth of the first UHR ELR PPDU is 20 MHz, the duplication transmission mode field and the number of duplications field are set to all 1s, all 0s, or other invalid values, and the receiver disregards the analysis of the two fields.

[00157] The format design of a UHR PPDU carrying the duplication transmission configuration will be described below in combination with specific modalities.

[00158] Mode 1-1: the first UHR ELR PPDU contains a duplication transmission mode field and a multi-duplication field.

[00159] In other words, the transmitter can indicate, through the first UHR ELR PPDU, a duplication transmission mode for the data field and the number of data field duplication transmissions to the receiver.

[00160] In this case, the granularity B of the duplication transmission can be determined based on the number N of duplication transmissions and the bandwidth BW of the first UHR ELR PPDU.

[00161] For example, the granularity B of the duplication transmission = BW / N.

[00162] In some embodiments, both the duplication transmission mode field and the number of duplications field are carried in a U-SIG field.

[00163] For example, B20 of the U-SIG field can Petition 870250089290, dated 10 / 01 / 2025, page 39 / 211 32 / 79 indicates a duplication transmission mode, and B21 of the USIG field can indicate the number of duplication transmissions.

[00164] Table 2 illustrates a schematic format of a U-SIG field carrying a duplication transmission mode field and a multi-duplication field provided in the disclosure modes. TABLE 2 Two parts of U-SIG Bit Field Number of bits Description U-SIG-1 B0-B2 PHY Version Identifier 3 Differentiate between different PHY versions B3-B5 BW 3 Indicate a bandwidth (BW) of a PPDU B6 UL / DL 1 Indicate whether the PPDU is UL or DL ​​B7-B12 BSS Color 6 An identifier of a Basic Service Set (BSS) B13-B19 TXOP 7 Indicate the duration information of a TXOP and a value of a Network Allocation Vector (NAV) B20 Duplication Transmission Mode 1 Indicate a duplication transmission mode for the PPDU B21 Number of Duplications 1 Indicate the number of duplication transmissions of a data field in the PPDU Petition 870250089290, dated 10 / 01 / 2025, p. 40 / 211 33 / 79 B22-B24 Ignore 3 Define as all ls and treat as ignore B25 Validate 1 Define as all ls and treat as validation U-SIG-2 B0-B1 PPDU type and compression mode 2 B2 Validate 1 Define as all ls and treat as validation B3-B7 Punched channel information 5 B8 Validate 1 Define as all ls and treat as validation B9-B10 UHR-SIG MCS 2 Indicate an MCS used to modulate the UHRSIG B11-B15 Number of UHRSIG symbols 5 Indicate the number of UHR-SIG symbols B16-B19 Cyclic redundancy check (CRC) 4 B20-B25 Tail 6

[00165] In some embodiments, the duplication transmission mode field may be one bit. When the BW field in the first UHR ELR PPDU is set to a non-zero value (i.e., the bandwidth of the first UHR ELR PPDU is not 20 MHz), a value in the duplication transmission mode field is valid. For example, when the duplication transmission mode field is set to 0, it indicates the activation of a duplication transmission mode, and when the duplication transmission mode field is set to 1, it indicates the deactivation of the duplication transmission mode. Alternatively, when the transmission mode field of Petition 870250089290, dated 10 / 01 / 2025, page 41 / 211 34 / 79 duplication is set to 1, indicating the activation of the duplication transmission mode, and when the duplication transmission mode field is set to 0, it indicates the deactivation of the duplication transmission mode.

[00166] In some embodiments, the number of duplicates field may be one bit. When the BW field in the first UHR ELR PPDU is set to a value other than 1 (i.e., the bandwidth of the first UHR ELR PPDU is not 40 MHz), a value in the number of duplicates field is a valid value. For example, when the number of duplicates field is set to 0, it indicates that the number of duplicate transmissions is 2, and when the number of duplicates field is set to 1, it indicates that the number of duplicate transmissions is 4. Alternatively, when the number of duplicates field is set to 1, it indicates that the number of duplicate transmissions is 2, and when the number of duplicates field is set to 0, it indicates that the number of duplicate transmissions is 4.

[00167] Optionally, in the case where the bandwidth of the first UHR ELR PPDU is 40 MHz, when the number of duplicates field is set to 0, it indicates that the number of duplicate transmissions is 1 and the value 1 indicates disregard; or, when the number of duplicates field is set to 1, it indicates that the number of duplicate transmissions is 1 and the value 0 indicates disregard.

[00168] In some embodiments, when the BW field in the first UHR ELR PPDU is set to a value of zero (i.e., the bandwidth of the first UHR ELR PPDU is 20 MHz), the duplication transmission mode field and the number of duplications field are set to all 1s, all Petition 870250089290, dated 10 / 01 / 2025, page 42 / 211 35 / 79 If 0s or other invalid values ​​are entered, the receiver disregards the analysis of both fields.

[00169] It can be understood that the lengths and positions of the duplication transmission mode field and the number of duplication fields illustrated in Table 2 are only examples, and disclosure is not limited in this respect. The number of duplications can also be of other lengths, for example, 2 bits or more bits, and the positions of the two fields can also be interchanged.

[00170] In some other embodiments, both the duplication transmission mode field and the duplication number field are carried in a UHR-SIG field.

[00171] For example, the duplication transmission mode field and the number of duplications field are carried in a common field in the UHR-SIG field, which is applicable to a UHR SU transmission scenario.

[00172] In a specific embodiment, B13 of the common field in the UHR-SIG field may indicate a duplication transmission mode, and B14 of the common field in the UHR-SIG field may indicate the number of duplication transmissions.

[00173] Table 3 illustrates a schematic format of a common field in a UHR-SIG field carrying a duplication transmission mode field and a multi-duplication field provided in disclosure modes. TABLE 3 Bit Field Number of bits Description B0—B3 Spatial reuse 4 Indicate whether a spatial reuse mode is allowed in a subband of a PPDU during the transmission of that PPDU. Petition 870250089290, dated 10 / 01 / 2025, page 43 / 211 36 / 79 B4-B5 GI+LTF Size 2 Indicate the GI duration and EHT-LTF size B6-B8 Number of EHT-LTF Symbols 3 Indicate the number of EHT-LTF symbols B9 Extra LDPC Symbol Segment 1 Indicate whether an extra LDPC symbol segment is present B10-B11 Pre-FEC Padding Factor 2 Indicate a pre-forward error correction (preFEC) padding factor B12 PE Disambiguity 1 Indicate PE disambiguation B13 Duplication Transmission Mode 1 Indicate a duplication transmission mode for the PPDU B14 Number of Duplicates 1 Indicate the number of duplication transmissions of a data field in the PPDU B15-B16 Ignore 2 Set to all ls B17-B19 Number of Non-OFDMA Users 3 Indicate the total number of non-OFDMA users

[00174] For specific implementations of the duplication transmission mode field and the number of duplications field in Table 3, reference can be made to the related illustrations in Table 2, which will not be repeated in this document for the sake of brevity.

[00175] It can be understood that the lengths and positions of the duplication transmission mode field and the number of duplications field illustrated in Table 3 are only examples, and the disclosure is not limited in this respect. The number of duplications field can also be of other lengths, for example, 2 bits or more bits, and the positions Petition 870250089290, dated 10 / 01 / 2025, page 44 / 211 37 / 79 of the two fields can also be swapped.

[00176] In some embodiments, the GI + LTF size field is set to 0 to indicate 2xLTF + 0.8 μs GI, set to 1 to indicate 2xLTF + 1.6 μs GI, set to 2 to indicate 4xLTF + 0.8 μs GI, or set to 3 to indicate 4xLTF + 3.2 μs GI.

[00177] In some embodiments, the EHT-LTF symbol field number is set to 0 to indicate 1 EHT-LTF symbol, set to 1 to indicate 2 EHT-LTF symbols, set to 2 to indicate 4 EHT-LTF symbols, set to 3 to indicate 6 EHT-LTF symbols, or set to 4 to indicate 8 EHT-LTF symbols. Values ​​5 to 7 are valid.

[00178] In some embodiments, when the LDPC extra symbol segment field is set to 1, this indicates that an LDPC extra symbol segment is present. When the LDPC extra symbol segment field is set to 0, it indicates that the LDPC extra symbol segment is absent.

[00179] In some modes, the pre-FEC fill factor field is set to 0 to indicate a pre-FEC fill factor of 4, set to 1 to indicate a pre-FEC fill factor of 1, set to 2 to indicate a pre-FEC fill factor of 2, or set to 3 to indicate a pre-FEC fill factor of 3.

[00180] In some modes, the non-OFDMA user number field is set to n to indicate n+1 non-OFDMA users. For a single-user non-OFDMA transmission, the non-OFDMA user number field is set to 0 to indicate a UHR SU transmission. For a multi-user non-OFDMA transmission, the non-OFDMA user number field is set to a value greater than 0 to indicate more than 1. Petition 870250089290, dated 10 / 01 / 2025, page 45 / 211 38 / 79 from a non-OFDMA user to non-OFDMA transmission to multiple users.

[00181] Mode 1-2: the first UHR ELR PPDU contains a duplication transmission mode field and a duplication field granularity.

[00182] That is, the transmitter can indicate, through the first UHR ELR PPDU, a duplication transmission mode for the data field and the granularity of the duplication transmission (e.g., a B-bandwidth of a subchannel) of the data field to the receiver.

[00183] In this case, the number N of duplication transmissions can be determined based on the granularity B of the duplication transmission and the bandwidth BW of the first UHR ELR PPDU.

[00184] For example, the number N of duplication transmissions = BW / B.

[00185] In some embodiments, both the duplication transmission mode field and the duplication field granularity are carried in a U-SIG field.

[00186] For example, B20 of the U-SIG field may indicate a duplication transmission mode and B21 of the USIG field may indicate a duplication transmission granularity.

[00187] Table 4 illustrates a schematic format of a U-SIG field carrying a duplication transmission mode field and a granularity of the duplication field provided in the disclosure modes. TABLE 4 Petition 870250089290, dated 10 / 01 / 2025, page 46 / 211 39 / 79 Two parts of USIG Bit Field Number of bits Description U-SIG- 1 B0-B2 PHY Version Identifier 3 Differentiate between different PHY versions B3-B5 BW 3 Indicate a bandwidth of a PPDU B6 UL / DL 1 Indicate whether the PPDU is UL or DL ​​B7-B12 BSS Color 6 An identifier of a BSS B13-B19 TXOP 7 Indicate the duration information of a TXOP and a value of a NAV B20 Duplication Transmission Mode 1 Indicate a duplication transmission mode for the PPDU B21 Duplication Granularity 1 Indicate a duplication transmission granularity of a data field in the PPDU B22-B24 Ignore 3 Set to all ls and treat as ignore B25 Validate 1 Set to all ls and treat as validation U-SIG2 B0-B1 PPDU Type and Compression Mode 2 B2 Validate 1 Define as all ls and treat as validation B3-B7 Perforated channel information 5 B8 Validate 1 Define as all ls and treat as validation Petition 870250089290, dated 10 / 01 / 2025, p. 47 / 211 40 / 79 B9-B10 UHR-SIG MCS 2 Indicate an MCS used to modulate the UHR-SIG B11-B15 Number of UHR-SIG symbols 5 Indicate the number of UHR-SIG symbols B16-B19 CRC 4 B20-B25 Tail 6

[00188] In some embodiments, the BW field is defined as 0 for 20 MHz, defined as 1 for 40 MHz, defined as 2 for 80 MHz, defined as 3 for 160 MHz, defined as 4 for 320 MHz-1 or defined as 5 for 320 MHz-2. Values ​​6 and 7 are valid.

[00189] In some embodiments, the duplication transmission mode field may be one bit. When the BW field in the first UHR ELR PPDU is set to a non-zero value (i.e., the bandwidth of the first UHR ELR PPDU is not 20 MHz), a value in the duplication transmission mode field is valid. For example, when the duplication transmission mode field is set to 0, it indicates the activation of a duplication transmission mode, and when the duplication transmission mode field is set to 1, it indicates the deactivation of the duplication transmission mode. Alternatively, when the duplication transmission mode field is set to 1, it indicates the activation of the duplication transmission mode, and when the duplication transmission mode field is set to 0, it indicates the deactivation of the duplication transmission mode.

[00190] In some modes, the granularity of the duplication field can be one bit, and values ​​other than one bit indicate different granularities of duplication transmission. For example, when the granularity field of Petition 870250089290, dated 10 / 01 / 2025, page 48 / 211 41 / 79 duplication is defined as 0, it indicates that the granularity of the duplication transmission is 20 MHz, and when the duplication granularity field is defined as 1, it indicates that the granularity of the duplication transmission is 40 MHz.

[00191] Optionally, in the case where the bandwidth of the first UHR ELR PPDU is 40 MHz, when the duplication granularity field indicates 40 MHz, it indicates that the number of duplication transmissions is 1, i.e., the duplication transmission is not performed.

[00192] In some embodiments, when the bandwidth of the first UHR ELR PPDU subject to drilling is not an integer multiple of the granularity of the duplication transmission, duplication transmission is not permitted.

[00193] It can be understood that the lengths and positions of the duplication transmission mode field and the duplication field granularity illustrated in Table 4 are only examples, and disclosure is not limited in this respect. The granularity of the duplication field can also be of other lengths, for example, 2 bits or more bits, and the positions of the two fields can also be interchanged.

[00194] In some other embodiments, both the duplication transmission mode field and the duplication field granularity are carried in a UHR-SIG field.

[00195] For example, the duplication transmission mode field and the duplication field granularity are carried in a common field in the UHR-SIG field, which is applicable to a UHR SU transmission scenario.

[00196] In a specific mode, B13 of the common field in the UHR-SIG field may indicate a transmission mode of Petition 870250089290, dated 10 / 01 / 2025, page 49 / 211 42 / 79 duplication, and B14 of the common field in the UHR-SIG field may indicate a transmission granularity of duplication.

[00197] Table 5 illustrates a schematic format of a common field in a UHR-SIG field carrying a duplication transmission mode field and a granularity of the duplication field provided in the disclosure modes. TABLE 5 Bit Field Number of bits Description B0-B3 Spatial reuse 4 Indicate whether a spatial reuse mode is allowed in a subband of a PPDU during the transmission of that PPDU B4-B5 GI+LTF size 2 Indicate the GI duration and the EHT-LTF size B6-B8 Number of EHT-LTF symbols 3 Indicate the number of EHT-LTF symbols B9 Extra LDPC symbol segment 1 Indicate whether an extra LDPC symbol segment is present B10-B11 Pre-FEC padding factor 2 Indicate a pre-FEC padding factor B12 PE disambiguation 1 Indicate PE disambiguation B13 Duplication transmission mode 1 Indicate a duplication transmission mode for the PPDU B14 Duplication granularity 1 Indicate a duplication transmission granularity for a data field in the PPDU B15-B16 Ignore 2 Set as all ls B17- B19 Number of non-OFDMA users 3 Indicate the total number of non-OFDMA users Petition 870250089290, dated 10 / 01 / 2025, page 50 / 211 43 / 79

[00198] For specific implementations of the duplication transmission mode field and the duplication field granularity in Table 5, reference may be made to the illustrations in Table 4, and for the meanings of other fields in Table 5, reference may be made to the illustrations of the corresponding fields in Table 3, which will not be repeated in this document for the sake of brevity.

[00199] It can be understood that the lengths and positions of the duplication transmission mode field and the duplication field granularity illustrated in Table 5 are only examples, and the disclosure is not limited in this respect. The granularity of the duplication field can also be of other lengths, for example, 2 bits or more bits, and the positions of the two fields can also be interchanged.

[00200] Mode 1-3: the first UHR ELR PPDU contains a duplication transmission mode field.

[00201] In other words, the transmitter can indicate, through the first UHR ELR PPDU, a data field duplication transmission mode to the receiver.

[00202] In this case, the transmitter and receiver can perform duplication transmission and reception based on a predefined duplication transmission granularity and / or a predefined number N of duplication transmissions, or determine a duplication transmission granularity and / or a number N of duplication transmissions of the data field in the first UHR ELR PPDU according to a predefined rule. For example, the duplication transmission granularity and / or the number N of duplication transmissions of the data field is determined based on the bandwidth of the first UHR ELR PPDU. For example, the duplication transmission granularity Petition 870250089290, dated 10 / 01 / 2025, page 51 / 211 44 / 79 and / or the number N of data field duplication transmissions is determined based on the bandwidth of the first UHR ELR PPDU in combination with Table 1.

[00203] In some modes, the predefined number of duplication transmissions is 4.

[00204] When the bandwidth of the first UHR ELR PPDU is 80 MHz, the data field is encoded in the first 20 MHz subchannel in the frequency domain, from low to high, and then duplicated to the second, third, and fourth 20 MHz subchannels, and a corresponding phase rotation is applied. A UHR-STF and a UHR-LTF in the UHR modulated field and a pilot subcarrier of the UHR modulated field are constructed identically to those of an OFDMA transmission using an 80 MHz UHR MU PPDU with RU 1 of 242 tones, RU 2 of 242 tones, RU 3 of 242 tones, and RU 4 of 242 tones occupied. Alternatively, the UHR-STF, the UHR-LTF, and the pilot subcarrier in the UHR modulated field are constructed based on 80 MHz.

[00205] When the bandwidth of the first UHR ELR PPDU is 160 MHz, the data field is encoded in the first 40 MHz subchannel in the frequency domain, from low to high, and then duplicated to the second, third, and fourth 40 MHz subchannels, and a corresponding phase rotation is applied. A UHR-STF, a UHR-LTF, and a pilot subcarrier in the modulated UHR field are constructed identically to those of an OFDMA transmission using a 160 MHz UHR MU PPDU with RU 1 of 484 tones, RU 2 of 484 tones, RU 3 of 484 tones, and RU 4 of 484 tones occupied. Alternatively, the UHR-STF, the UHR-LTF, and the pilot subcarrier in the modulated UHR field are constructed based on 160 MHz.

[00206] When the bandwidth of the first UHR Petition 870250089290, dated 10 / 01 / 2025, p. 52 / 211 45 / 79 The ELR PPDU is 320 MHz; the data field is encoded in the first 80 MHz subchannel in the frequency domain, from low to high, and then duplicated to the second, third, and fourth 80 MHz subchannels, and a corresponding phase rotation is applied. A UHR-STF, a UHR-LTF, and a pilot subcarrier in the UHR modulated field are constructed identically to those of an OFDMA transmission using a 320 MHz UHR MU PPDU with RU 1 of 996 tones, RU 2 of 996 tones, RU 3 of 996 tones, and RU 4 of 996 tones occupied. Alternatively, the UHR-STF, the UHR-LTF, and the pilot subcarrier in the UHR modulated field are constructed based on 320 MHz.

[00207] When the bandwidth of the first UHR ELR PPDU is 480 MHz, the data field is encoded in the first 120 MHz subchannel in the frequency domain, from low to high, and then duplicated to the second, third, and fourth 120 MHz subchannels, and a corresponding phase rotation is applied. A UHR-STF, a UHR-LTF, and a pilot subcarrier in the modulated UHR field are constructed identically to those of an OFDMA transmission using a 480 MHz UHR MU PPDU with MRU 1 of 996 + 484 tones, RU 2 of 996 + 484 tones, RU 3 of 996 + 484 tones, and RU 4 of 996 + 484 tones occupied. Alternatively, the UHR-STF, UHR-LTF, and pilot subcarrier in the UHR modulated field are built on the 480 MHz band.

[00208] When the bandwidth of the first UHR ELR PPDU is 640 MHz, the data field is encoded in the first 160 MHz subchannel in the frequency domain, from low to high, and then duplicated to the second, third, and fourth 160 MHz subchannels, and a corresponding phase rotation is applied. A UHR-STF, a UHR-LTF, and a pilot subcarrier in the modulated UHR field are constructed identically to those Petition 870250089290, dated 10 / 01 / 2025, p. 53 / 211 46 / 79 of an OFDMA transmission using a 640 MHz UHR MU PPDU with RU 1 of 2x996 tones, RU 2x996 tones, RU 3 of 2x996 tones and RU 4 of 2x996 tones occupied. Alternatively, UHR-STF, UHRLTF and the pilot subcarrier in the UHR modulated field are built based on 640 MHz.

[00209] Mode 2: the first resource unit in the frequency domain is a RU / MRU.

[00210] In other words, the transmitter can perform duplicate transmission of a UHR PPDU at a RU / MRU granularity, thereby improving the reliability of the UHR PPDU transmission and reducing transmission latency caused by data retransmission.

[00211] In some embodiments, the transmitter transmits the data field N times in N RUs / MRUs, where each transmission occupies one RU / MRU. For example, the data field is encoded in the first RU / MRU and then duplicated to the second, third, ..., Nth RUs / MRUs. For example, during the duplication of the data field to the other N-1 RUs / MRUs, a certain phase rotation may be applied. That is, the data fields in the other N-1 RUs / MRUs may have a certain phase rotation offset relative to the data field in the first RU / MRU.

[00212] In some embodiments, the RUs or MRUs for N data field transmissions are located in different 20 MHz subchannels. As such, in case of interference in one of the 20 MHz subchannels, the receiver can still receive complete data using RUs or MRUs in other 20 MHz subchannels, thus ensuring that the receiver can correctly decode the data, avoiding the problem of a relatively long transmission latency caused by Petition 870250089290, dated 10 / 01 / 2025, p. 54 / 211 4Ί / Ί9 multiple retransmissions of data by the transmitter, and ensure the reliability of data transmission.

[00213] In mode 2, the first UHR ELR PPDU can be a UHR MU PPDU, that is, to transport data from one or more users.

[00214] In this case, when the first UHR ELR PPDU carries data from multiple users, all data from the multiple users can be transmitted in a duplication transmission mode, or part of the data from the multiple users can be transmitted in duplication transmission mode. Optionally, the number of duplicate data transmissions from different users can be equal or different.

[00215] In some scenarios, the transmitter is an AP and the AP can transmit a first UHR ELR PPDU to multiple STAs. The first UHR ELR PPDU contains data to be transmitted to the multiple STAs. All data to be transmitted to the multiple STAs can be transmitted in duplicate transmission mode, or part of the data to be transmitted to the multiple STAs can be transmitted in duplicate transmission mode.

[00216] Figure 11 is a schematic diagram of N MRUs for N duplication transmissions of a data field provided in broadcast modes. In this example, the bandwidth of a first PPDU UHR is 40 MHz and N=2. During a 40 MHz OFDMA UHR PPDU duplication transmission, an AP allocates MRU 1 of 106+26 tones and MRU 3 of 106+26 tones for data to be transmitted to STA1, which are respectively on the first 20 MHz subchannel and the second 20 MHz subchannel; and allocates RU 106 of 2 tones and RU 4 of 106 tones for data to be transmitted to STA2, which are Petition 870250089290, dated 10 / 01 / 2025, p. 55 / 211 48 / 79 respectively on the first 20 MHz subchannel and the second 20 MHz subchannel. In this case, for the data to be transmitted to STA1, the AP can perform two duplication transmissions in MRU 1 of 106+26 tones on the first 20 MHz subchannel and MRU 3 of 106+26 tones on the second 20 MHz subchannel. For the data to be transmitted to STA2, the AP can perform two duplication transmissions in RU 2 of 106 tones on the first 20 MHz subchannel and RU 4 of 106 tones on the second 20 MHz subchannel.

[00217] In some modes, RUs / MRUs for N data field transmissions are allocated by the transmitter.

[00218] For example, for a UHR MU PPDU scenario, the RUs / MRUs used for data to be transmitted to different users can be allocated by the transmitter.

[00219] In some embodiments, the first UHR ELR PPDU contains secondary information. The secondary information indicates the duplication transmission configuration of the first UHR ELR PPDU, for example, if a duplication transmission mode is used for the first UHR ELR PPDU, the RUs / MRUs for N data field transmissions and a data field receiver, etc.

[00220] In some embodiments, the second information includes at least one of: fourth indication information indicating a duplication transmission mode for the first UHR ELR PPDU or a duplication transmission mode for the data field in the first UHR ELR PPDU; fifth indication information indicating the RUs or MRUs for N data field transmissions; or sixth indication information indicating a data field receiver.

[00221] In some sports, the quarters Petition 870250089290, dated 10 / 01 / 2025, page 56 / 211 49 / 79 indicator information can indicate whether the duplication transmission mode is enabled (or activated or used) for the first UHR ELR PPDU, in other words, whether the duplication transmission mode is enabled (or activated or used) for the data field in the first UHR ELR PPDU.

[00222] In some modes, for a UHR MU PPDU, the fifth indication information may indicate a RU / MRU for each transmission of a data field to be transmitted to a different user.

[00223] In some forms, the sixth piece of identifying information may indicate the recipient's identity information in the data field.

[00224] In some embodiments, the fourth indication information may be carried in an existing field (e.g., a reserved field or a reserved bit) in the first UHR ELR PPDU, or the fourth indication information may be carried in a newly added field in the first UHR ELR PPDU, which is not limited in disclosure.

[00225] In some embodiments, the fourth indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00226] For example, the fourth indication information can be carried in a reserved field of the UHR-SIG field or the U-SIG field.

[00227] In some forms, the fourth indication information is carried in a common field or in a user field in the UHR-SIG field.

[00228] When the fourth indication information is carried in a common field, the fourth indication information is intended for all users in the first UHR. Petition 870250089290, dated 10 / 01 / 2025, page 57 / 211 50 / 79 ELR PPDU.

[00229] That is, when the fourth indication indicates that the duplication transmission mode is enabled, the duplication transmission mode is used for all data fields to be transmitted by the transmitter to all users. When the fourth indication indicates that the duplication transmission mode is disabled, the duplication transmission mode is not used for all data fields to be transmitted by the transmitter to all users.

[00230] When the fourth indication information is carried in a user field, the fourth indication information is destined for a recipient indicated by the user field.

[00231] That is, when the fourth indication information indicates that the duplication transmission mode is enabled, the duplication transmission mode is used for a data field to be transmitted by the transmitter to the receiver indicated by the user field. When the fourth indication information indicates that the duplication transmission mode is disabled, the duplication transmission mode is not used for the data field to be transmitted by the transmitter to the receiver indicated by the user field.

[00232] In some embodiments, the first UHR ELR PPDU contains a duplication transmission mode field, which indicates whether a duplication transmission mode is enabled (or activated or used) for the first UHR ELR PPDU.

[00233] In some modes, the duplication transmission mode field may be one bit, and values Petition 870250089290, dated 10 / 01 / 2025, page 58 / 211 51 / 79 different from one bit indicate whether the duplication transmission mode is enabled. For example, when the duplication transmission mode field is set to 0, it indicates that the duplication transmission mode is enabled, and when the duplication transmission mode field is set to 1, it indicates that the duplication transmission mode is disabled. Alternatively, when the duplication transmission mode field is set to 1, it indicates that the duplication transmission mode is enabled, and when the duplication transmission mode field is set to 0, it indicates that the duplication transmission mode is disabled.

[00234] In some embodiments, the duplication transmission mode field is carried in a UHR-SIG field or a U-SIG field in the first UHR ELR PPDU.

[00235] For example, the duplication transmission mode field is located in B22 of the U-SIG field.

[00236] For another example, the duplication transmission mode field is located in B13 of the common field in the UHR-SIG field or in B15 of the user field in the UHRSIG field.

[00237] In some embodiments, the fifth indication information and the sixth indication information are carried in a UHR-SIG field in the first UHR ELR PPDU.

[00238] For example, the fifth indication information is carried in a common field of a UHR-SIG field in the first UHR ELR PPDU, and the sixth indication information is carried in a user field of the UHR-SIG field in the first UHR ELR PPDU.

[00239] For example, the common field of the UHRSIG field in the first UHR ELR PPDU indicates multiple RUs or multiple MRUs, Petition 870250089290, dated 10 / 01 / 2025, page 59 / 211 52 / 79 The UHR-SIG field includes several user fields, the various user fields are in one-to-one correspondence with the various RUs or the various MRUs, and a data field for a receiver indicated by the various user fields is transmitted using the corresponding RUs or MRUs.

[00240] In some modes, when the duplication transmission mode for the first UHR ELR PPDU is enabled, at least two user fields among the various user fields indicate the same receiver. As such, the data to be transmitted to a receiver can be transmitted using at least two matching EF / MRUs.

[00241] In some modes, the positions of user fields that indicate the same recipient may be continuous or discontinuous.

[00242] In some embodiments, in the case where the data fields for multiple receivers are all transmitted in a duplication transmission mode, the number of RUs / MRUs for the various receivers may be equal or different, i.e., the number of data duplication transmissions to be transmitted to the various receivers may be the same or different.

[00243] Figure 12 is a schematic diagram of a UHR-GIS field that carries RUs / MRUs for MU data duplication transmission. As illustrated in Figure 12, a common UHR-GIS field may include multiple EF allocation fields, where the various EF allocation fields indicate multiple EF / MRUs, and a UHR-GIS user-specific field includes multiple user fields, where each user field includes a STA-ID field indicating a receiver's STA-ID. The various RU allocation fields are in Petition 870250089290, dated 10 / 01 / 2025, pp. 60 / 211 53 / 79 one-to-one correspondence with the various user fields. A data field for a receiver indicated by each user field can be transmitted using an EF / MRU assigned by a corresponding EF assignment field.

[00244] After receiving an initial PPDU UHR, a receiver needs to decode all user fields, find a user field position that matches a receiver ID, and also find its own RUs / MRUs in combination with RU / MRU information common to all users indicated by the RU allocation fields in the common UHR-SIG field. Furthermore, the receiver may receive duplicate data for itself in its own RUs / MRUs.

[00245] As illustrated in Figure 13, for example, during the transmission of an 80 MHz OFDMA UHR PPDU duplication, an AP can indicate in a UHR-SIG field six RUs / MRUs to be allocated, including three 242-tone RUs, one 106+26-tone MRU, and one 106-tone RU. The UHR-SIG field includes five user fields. As illustrated in Figure 13, a STA-ID in each of the first user field, the second user field, and the third user field points to STA1, a STA-ID in the fourth user field points to STA2, and a STA-ID in the fifth user field points to STA3. In this case, the data to be transmitted to STA1 can be encoded in a 242-tone RU and then duplicated to the other two 242-tone RUs, the data to be transmitted to STA2 can be encoded in a 106 + 26-tone MRU without duplication transmission, and the data to be transmitted to STA3 can be encoded in a 106-tone RU without duplication transmission. Petition 870250089290, dated 10 / 01 / 2025, pp. 61 / 211 54 / 79

[00246] Similarly, a STA can determine, based on the indication of a duplication transmission mode field, whether a duplication transmission mode is used for a UHR PPDU. In the case where the duplication transmission mode field indicates that the duplication transmission mode is used, the STA needs to decode all user fields and find multiple user fields that match a STA-ID of the STA. Based on the positions of the various user fields and the EF allocation information indicated by the EF allocation field, the STA finds various EF / MRUs belonging to the STA itself. In addition, the STA can receive data for itself in its own RUs / MRUs. The data in the various RUs / MRUs is duplicated.

[00247] In some modes, RUs or MRUs for N data field transmissions are allocated by the receiver.

[00248] For example, for a UHR TB PPDU scenario (i.e., the first UHR ELR PPDU is a UHR TB PPDU), an AP can allocate to a STA the RUs / MRUs for N data field transmissions.

[00249] In a specific embodiment, an AP can allocate N RUs / MRUs via a trigger frame for N transmissions of a data field by a STA. Furthermore, the STA can execute N transmissions of the data field using the RUs / MRUs N and, correspondingly, the AP can receive in the N RUs / MRUs the data field that is subject to duplication transmission by the STA.

[00250] In some modes, the trigger frame additionally contains seventh indication information indicating a duplication transmission mode for the STA, for example, indicating whether a duplication transmission mode Petition 870250089290, dated 10 / 01 / 2025, page 62 / 211 55 / 79 must be used (or enabled or activated) for STA for data transmission.

[00251] In some embodiments, the seventh indication information is carried in a common information field (common information) or in a UHR variant user information field (UHR variant user information) of the trigger frame.

[00252] When the seventh indication information is carried in the common information field, the seventh indication information is intended for all users triggered by the trigger frame. That is, when the seventh indication information indicates enabling the duplication transmission mode, this indicates that the duplication transmission mode should be used for all users, and when the seventh indication information indicates disabling the duplication transmission mode, this indicates that the duplication transmission mode should not be used for all users.

[00253] When the seventh indication information is carried in the user information field of the UHR variant, the seventh indication information is intended for a user indicated by the user information field of the UHR variant. That is, when the seventh indication information indicates enabling the duplication transmission mode, this indicates that the duplication transmission mode should be used for the user indicated by the user information field of the UHR variant, and when the seventh indication information indicates disabling the duplication transmission mode, this indicates that the duplication transmission mode should not be used for the user. Petition 870250089290, dated 10 / 01 / 2025, page 63 / 211 56 / 79 indicated by the user information field of the UHR variant.

[00254] In some embodiments, the trigger frame may contain a duplication transmission mode field. The duplication transmission mode field may be carried in a common information field (common information) or in a UHR variant user information field (UHR variant user information) of the trigger frame.

[00255] For example, an existing field (a reserved field or a reserved bit) in the common information field or in the user information field of the UHR variant is used as the duplication transmission mode field, or a field is newly added to the trigger frame as the duplication transmission mode field, which is not limited in disclosure in this respect.

[00256] Figure 14 is a schematic diagram of a common information field containing a duplication transmission mode field provided in the disclosure modalities. Figure 15 is a schematic diagram of a UHR variant user information field containing a duplication transmission mode field provided in the disclosure modalities.

[00257] In some embodiments, the duplication transmission mode field may be one bit, and values ​​other than one bit indicate whether a duplication transmission mode should be enabled (or activated or used). For example, the value 1 indicates enabling the duplication transmission mode and the value 0 indicates disabling the duplication transmission mode. For another example, the value 0 indicates enabling the duplication transmission mode and the value Petition 870250089290, dated 10 / 01 / 2025, page 64 / 211 57 / 79 indicates disabling the duplication transmission mode.

[00258] It can be understood that the lengths and positions of the duplication transmission mode fields illustrated in Figures 14 and 15 are only examples, and the disclosure is not limited in this respect. The duplication transmission mode field may also have other lengths, for example, 2 bits or more bits, and the duplication transmission mode field may also be located in a reserved field after a reserved UHR bit, etc.

[00259] In some embodiments, the trigger frame contains several UHR variant user information fields, and the various UHR variant user information fields indicate several RUs or several MRUs allocated by the AP for STA data transmission. The association identifier12 (AID12) fields in at least two of the various UHR variant user information fields indicate the same STA, and the RU allocation fields in at least two UHR variant user information fields indicate different RUs / MRUs. The different RUs / MRUs are located on different 20 MHz subchannels. As such, the STA can perform data field duplication transmission using the different EF / MRUs indicated by the EF allocation fields in at least two UHR variant user information fields.

[00260] Similarly, after receiving the trigger frame, the STA can decode all user information fields of the UHR variant, find various user information fields of the UHR variant that correspond to an STA AID, and also find its own RUs / MRUs based on the RU / MRU information indicated by the fields of Petition 870250089290, dated 10 / 01 / 2025, page 65 / 211 58 / 79 allocation RU in the various user information fields of the UHR variant. Additionally, the STA can perform duplication transmission in its own RUs / MRUs. For example, the STA encodes the data in the first RU / MRU and duplicates the data to the remaining RUs / MRUs.

[00261] With reference to Figure 16, the specific implementation of RU / MRU allocation for duplication transmission by an AP to multiple STAs will be described.

[00262] For example, during the transmission of a 160 MHz OFDMA UHR TB PPDU duplication, an AP indicates six UHR variant user information fields in a trigger frame. As illustrated in Figure 16, AID12 in four UHR variant user information fields points to STA1, and the RU allocation fields in the four UHR variant user information fields allocate four 242-tone RUs in different positions; and AID 12 in the two remaining UHR variant user information fields points to STA2, and the RU allocation fields in the two UHR variant user information fields allocate two 484-tone RUs in different positions.

[00263] Similarly, a STA determines, based on the indication of a duplication transmission mode field, whether a duplication transmission mode should be used by the STA for data transmission. In the case where the duplication transmission mode field indicates that the duplication transmission mode should be used, the STA may attempt to find various user information fields of the UHR variant that correspond to an STA AID and find its own multiple RUs / MRUs based on the RU allocation information indicated by those user information fields. Petition 870250089290, dated 10 / 01 / 2025, page 66 / 211 59 / 79 variant UHR. In addition, STA1 can encode data in a 242-tone RU and then duplicate the data to the second, third, and fourth 242-tone RUs, and STA2 can encode data in a 484-tone RU and then duplicate the data to the other 484-tone RU, thus performing data duplication transmission.

[00264] As mentioned above, in the disclosure modalities, the transmitter can perform the duplication transmission of a data field in a PPDU UHR at a granularity of a first feature unit in the frequency domain (e.g., a subchannel or a RU / MRU). As such, in case of interference in a given subchannel, the receiver can still obtain complete data through other subchannels, thus ensuring that the receiver can correctly decode the data, guaranteeing the reliability of the data transmission and reducing the transmission latency caused by data retransmission, and the change to an existing protocol is small.

[00265] Furthermore, in dissemination modalities, a duplication transmission mode for the UHR PPDU can also be applied to a frequency band with a limitation A relatively high PSD is needed to extend / increase long range. For example, in a 6 GHz frequency band, an AP has a PSD limit of 5 dBm / MHz, and a non-AP STA has a limit of... PSD of -1 dBm / MHz; and in the 5 GHz band, the AP has a PSD limit of 17 dBm / MHz, and the non-AP STA has a PSD limit of 11 dBm / MHz. In comparison, the transmit (TX) powers of the AP and the non-AP STA operating in the 6 GHz frequency band decrease due to the PSD limit, which, in turn, reduces the long range. In the disclosure modes, without exceeding a limit of Petition 870250089290, dated 10 / 01 / 2025, p. 67 / 211 60 / 79 total transmission power, the total transmission power can be increased by doubling data in the frequency domain, thus increasing the long range.

[00266] The modalities of the disclosure method are described in detail above with reference to Figures 3 to 16, and the modalities of the disclosure apparatus will be described in detail below with reference to Figures 17 to 21. It may be understood that the apparatus modalities and the method modalities correspond to each other and, for similar illustrations, reference may be made to the method modalities.

[00267] Figure 17 is a schematic block diagram of a 400 transmitter according to the disclosure modalities. As illustrated in Figure 17, the 400 transmitter includes a 410 communication unit. The 410 communication unit is configured to transmit a first UHR ELR PPDU. The first UHR ELR PPDU contains a data field, the data field is transmitted N times at a granularity of a first feature unit in the frequency domain at a bandwidth of the first UHR ELR PPDU and N is a positive integer greater than 1.

[00268] In some embodiments, one or more of the N1 data field duplication transmissions have a phase rotation offset relative to the first data field transmission.

[00269] In some modes, the transmitter is an AP or a STA.

[00270] In some modes, the first resource unit in the frequency domain is a subchannel.

[00271] In some embodiments, a bandwidth of the first resource unit in the frequency domain Petition 870250089290, dated 10 / 01 / 2025, pp. 68 / 211 61 / 79 is predefined or determined based on the bandwidth of the first PPDU UHR.

[00272] In some embodiments, the first UHR ELR PPDU contains a modulated UHR field, the modulated UHR field includes the data field, a UHR-STF and a UHR-LTF, and a granularity of each of the UHR-STF, the UHR-LTF and a pilot subcarrier of the modulated UHR field is the first feature unit in the frequency domain.

[00273] In some embodiments, the first UHR ELR PPDU contains a modulated UHR field, the modulated UHR field includes the data field, a UHR-STF and a UHR-LTF, a granularity of each of the UHR-STF, the UHR-LTF and a pilot subcarrier of the modulated UHR field is a second feature unit in the frequency domain, and the first feature unit in the frequency domain is different from the second feature unit in the frequency domain.

[00274] In some embodiments, a bandwidth of the second resource unit in the frequency domain is determined based on the bandwidth of the first UHR ELR PPDU.

[00275] In some embodiments, the bandwidth of the second resource unit in the frequency domain is equal to the bandwidth of the first UHR ELR PPDU.

[00276] In some modes, the number N of duplication transmissions is predefined or determined based on the bandwidth of the UHR PPDU.

[00277] In some embodiments, the first UHR ELR PPDU contains the first information and the first information indicates the duplication transmission configuration of the first UHR ELR PPDU. Petition 870250089290, dated 10 / 01 / 2025, page 69 / 211 62 / 79

[00278] In some embodiments, the first information includes at least one of: first indication information indicating a duplication transmission mode for the first PPDU UHR; second indication information indicating the number N of data field duplication transmissions in the first PPDU UHR; or third indication information indicating a bandwidth of the first resource unit in the frequency domain.

[00279] In some modes, the first indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00280] In some embodiments, the second indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00281] In some embodiments, the third indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00282] In some embodiments, the first UHR ELR PPDU contains at least one of: a duplication transmission mode field indicating a duplication transmission mode for the first UHR ELR PPDU; a number of duplications field indicating the number N of duplication transmissions of the data field in the first UHR ELR PPDU; or a duplication field granularity indicating a bandwidth of one resource unit in the frequency domain for duplication transmission of the data field in the first UHR ELR PPDU.

[00283] In some embodiments, the duplication transmission mode field is carried in a UHR-SIG field or in a U-SIG field. Petition 870250089290, dated 10 / 01 / 2025, pp. 70-211 63 / 79

[00284] In some embodiments, the number of duplicates field is carried in a UHR-SIG field or in a U-SIG field.

[00285] In some modes, the granularity of the duplication field is carried in a UHR-GIS field or in a U-GIS field.

[00286] In some modes, the first resource unit in the frequency domain is a RU or a MRU.

[00287] In some embodiments, the first N resource units in the frequency domain for N data field transmissions are located in different 20 MHz subchannels.

[00288] In some modes, RUs or MRUs for N data field transmissions are allocated by the transmitter.

[00289] In some embodiments, the first UHR ELR PPDU contains second information. The second information includes at least one of: fourth indication information indicating a duplication transmission mode for the first UHR ELR PPDU; fifth indication information the RUs or MRUs for the N data field transmissions; or sixth indication information indicating a data field receiver.

[00290] In some embodiments, the fourth indication information is carried in a U-SIG field or in a UHR-SIG field in the first UHR ELR PPDU.

[00291] In some forms, the fourth indication information is carried in a common field or in a user field in the UHR-SIG field.

[00292] In some forms, the fifth indication information is carried in a common field. Petition 870250089290, dated 10 / 01 / 2025, pp. 71 / 211 64 / 79 of a UHR-SIG field in the first UHR ELR PPDU, and the sixth indication information is carried in a user field of the UHR-SIG field in the first UHR ELR PPDU.

[00293] In some embodiments, the common field of the UHR-SIG field in the first UHR ELR PPDU indicates multiple RUs or multiple MRUs, the UHR-SIG field includes multiple user fields, the multiple user fields are in one-to-one correspondence with the multiple RUs or multiple MRUs, and the data of a receiver indicated by the multiple user fields is transmitted using corresponding RUs or MRUs.

[00294] In some forms, at least two user fields among the various user fields indicate the same recipient.

[00295] In some modes, RUs or MRUs for N data field transmissions are allocated by a receiver of the first PPDU UHR.

[00296] In some embodiments, the transmitter is a STA, the receiver is an AP, and the RUs or MRUs for N data field transmissions are allocated by the AP. [0029Ί] In some modes, the RUs or MRUs for N data field transmissions are allocated by the AP through a trigger frame.

[00298] In some embodiments, the trigger frame contains several UHR variant user information fields, and the various UHR variant user information fields indicate several RUs or several MRUs allocated for STA data transmission.

[00299] In some embodiments, all association identifier 12 (AID12) fields in the various user information fields of the UHR variant indicate information of Petition 870250089290, dated 10 / 01 / 2025, page 72 / 211 65 / 79 STA identity.

[00300] In some modes, the trigger frame also contains seventh indication information indicating a duplication transmission mode for the STA.

[00301] In some embodiments, the seventh indication information is carried in a common information field or in a UHR variant user information field of the trigger frame.

[00302] Optionally, in some embodiments, the above communication unit may be a communication interface or a transceiver, or it may be an input / output interface of a communication chip or a SOC.

[00303] It can be understood that, according to the dissemination modalities, transmitter 400 may correspond to the transmitter in the dissemination method, and the previous operations and / or functions and others of various units in transmitter 400 are intended, respectively, for the implementation of corresponding transmitter procedures in method 200 illustrated in Figures 3 to 16, which will not be repeated in this document for the sake of brevity.

[00304] Figure 18 is a schematic block diagram of a receiver according to the disclosure modalities. The receiver 500 in Figure 18 includes a communication unit 510. The communication unit 510 is configured to receive a first UHR ELR PPDU transmitted by a transmitter. The first UHR ELR PPDU contains a data field, the data field is transmitted N times at a granularity of a first feature unit in the frequency domain at a bandwidth of the first UHR ELR PPDU and N is a positive integer greater than 1. Petition 870250089290, dated 10 / 01 / 2025, p. 73 / 211 66 / 79

[00305] In some embodiments, one or more of the N1 data field duplication transmissions have a phase rotation offset relative to the first data field transmission.

[00306] In some modes, the receiver is an AP or a STA, and the transmitter is the STA or the AP.

[00307] In some modes, the first resource unit in the frequency domain is a subchannel.

[00308] In some embodiments, a bandwidth of the first resource unit in the frequency domain is predefined or determined based on the bandwidth of the first PPDU UHR.

[00309] In some embodiments, the first UHR ELR PPDU contains a modulated UHR field, the modulated UHR field includes the data field, a UHR-STF and a UHR-LTF, and a granularity of each of the UHR-STF, the UHR-LTF and a pilot subcarrier of the modulated UHR field is the first feature unit in the frequency domain.

[00310] In some embodiments, the first UHR ELR PPDU contains a modulated UHR field, the modulated UHR field includes the data field, a UHR-STF and a UHR-LTF, a granularity of each of the UHR-STF, the UHR-LTF and a pilot subcarrier of the modulated UHR field is a second feature unit in the frequency domain, and the first feature unit in the frequency domain is different from the second feature unit in the frequency domain.

[00311] In some embodiments, a bandwidth of the second frequency domain resource unit is determined based on the bandwidth of the first UHR ELR PPDU. Petition 870250089290, dated 10 / 01 / 2025, page 74 / 211 6Ί / Ί9

[00312] In some embodiments, the bandwidth of the second resource unit in the frequency domain is equal to the bandwidth of the first UHR ELR PPDU.

[00313] In some modes, the number N of duplication transmissions is predefined or determined based on the bandwidth of the UHR PPDU.

[00314] In some embodiments, the first UHR ELR PPDU contains the first information and the first information indicates the duplication transmission configuration of the first UHR ELR PPDU.

[00315] In some embodiments, the first information includes at least one of: first indication information indicating a duplication transmission mode for the first UHR ELR PPDU; second indication information indicating the number N of data field duplication transmissions in the first UHR ELR PPDU; or third indication information indicating a bandwidth of the first feature unit in the frequency domain.

[00316] In some modes, the first indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU. [0031Ί] In some embodiments, the second indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00318] In some embodiments, the third indication information is carried in a UHR-SIG field or in a U-SIG field in the first UHR ELR PPDU.

[00319] In some embodiments, the first UHR ELR PPDU contains at least one of: a duplication transmission mode field indicating a transmission mode of Petition 870250089290, dated 10 / 01 / 2025, page 75 / 211 68 / 79 duplication for the first UHR ELR PPDU; a duplication number field indicating the number N of data field duplication transmissions in the first UHR ELR PPDU; or a duplication field granularity indicating a bandwidth of a resource unit in the frequency domain for data field duplication transmission in the first UHR ELR PPDU.

[00320] In some embodiments, the duplication transmission mode field is carried in a UHR-SIG field or in a U-SIG field.

[00321] In some embodiments, the number of duplicates field is carried in a UHR-SIG field or in a U-SIG field.

[00322] In some modes, the granularity of the duplication field is carried in a UHR-GIS field or in a U-GIS field.

[00323] In some modes, the first resource unit in the frequency domain is a RU or a MRU.

[00324] In some embodiments, the first N resource units in the frequency domain for N data field transmissions are located in different 20 MHz subchannels.

[00325] In some modes, RUs or MRUs for N data field transmissions are allocated by the transmitter.

[00326] In some embodiments, the first UHR ELR PPDU contains secondary information. The secondary information includes at least one of: fourth indication information indicating a duplication transmission mode for the first UHR ELR PPDU; fifth indication information the RUs or MRUs for the N data field transmissions; or sixth information Petition 870250089290, dated 10 / 01 / 2025, page 76 / 211 69 / 79 indicating information indicating a recipient of the data field.

[00327] In some embodiments, the fourth indication information is carried in a U-SIG field or in a UHR-SIG field in the first UHR ELR PPDU.

[00328] In some forms, the fourth indication information is carried in a common field or in a user field in the UHR-SIG field.

[00329] In some embodiments, the fifth indication information is carried in a common field of a UHR-SIG field in the first UHR ELR PPDU, and the sixth indication information is carried in a user field of the UHR-SIG field in the first UHR ELR PPDU.

[00330] In some embodiments, the common field of the UHR-SIG field in the first UHR ELR PPDU indicates multiple RUs or multiple MRUs, the UHR-SIG field includes multiple user fields, the multiple user fields are in one-to-one correspondence with the multiple RUs or multiple MRUs, and the data of a receiver indicated by the multiple user fields is transmitted using corresponding RUs or MRUs.

[00331] In some modalities, at least two user fields among the various user fields indicate the same recipient.

[00332] In some modes, RUs or MRUs for N data field transmissions are allocated by the receiver of the first PPDU UHR.

[00333] In some embodiments, the transmitter is a STA, the receiver is an AP, and the RUs or MRUs for N data field transmissions are allocated by the AP.

[00334] In some modalities, the RUs or MRUs for Petition 870250089290, dated 10 / 01 / 2025, page 77 / 211 70 / 79 N data field transmissions are allocated by the AP through a trigger frame.

[00335] In some embodiments, the trigger frame contains several UHR variant user information fields, and the various UHR variant user information fields indicate several RUs or several MRUs allocated for STA data transmission.

[00336] In some embodiments, all membership identifier12 (AID12) fields in the various user information fields of the UHR variant indicate STA identity information.

[00337] In some modes, the trigger frame also contains seventh indication information indicating a duplication transmission mode for the STA.

[00338] In some embodiments, the seventh indication information is carried in a common information field or in a UHR variant user information field of the trigger frame.

[00339] Optionally, in some embodiments, the above communication unit may be a communication interface or a transceiver, or it may be an input / output interface of a communication chip or a SOC.

[00340] It can be understood that, receiver 500 according to the disclosure modalities may correspond to the network receiver in the disclosure method modalities, and the previous operations and / or functions and others of various units in receiver 500 are intended, respectively, for the implementation of corresponding receiver procedures in method 200 illustrated in Figures 3 to 16, which will not be repeated in this document for the sake of brevity. Petition 870250089290, dated 10 / 01 / 2025, pp. 78 / 211 71 / 79

[00341] Figure 19 is a schematic structural diagram of a communication device 600 provided in disclosure embodiments. The communication device 600 illustrated in Figure 19 includes a processor 610. The processor 610 can invoke and execute a computer program stored in memory, so as to implement the method in disclosure embodiments.

[00342] Optionally, as illustrated in Figure 19, the communication device 600 may additionally include a memory 620. The processor 610 may invoke and execute a computer program stored in memory 620, in order to implement the method in disclosure modalities.

[00343] The 620 memory can be a separate device independent of the 610 processor or it can be integrated into the 610 processor.

[00344] Optionally, as illustrated in Figure 19, the communication device 600 may additionally include a transceiver 630. The processor 610 may control the transceiver 630 to communicate with other devices, specifically, to transmit information or data to other devices or to receive information or data from other devices.

[00345] The 630 transceiver may include a transmitter and a receiver. The 630 transceiver may additionally include an antenna, wherein one or more antennas may be provided.

[00346] Optionally, the 600 communication device may specifically be the network device in disclosure modes, and the communication device Petition 870250089290, dated 10 / 01 / 2025, pp. 79 / 211 72 / 79 600 can implement corresponding operations implemented by the network device in various methods in disclosure modes, which will not be repeated in this document for the sake of brevity.

[00347] Optionally, the communication device 600 may specifically be the mobile terminal / terminal device in disclosure modes, and the communication device 600 may implement corresponding operations implemented by the mobile terminal / terminal device in various methods in disclosure modes, which will not be repeated in this document for the sake of brevity.

[00348] Figure 20 is a schematic structural diagram of a chip according to the disclosure embodiments. The 700 chip illustrated in Figure 20 includes a 710 processor. The 710 processor can invoke and execute a computer program stored in memory, so as to implement the method in disclosure embodiments.

[00349] Optionally, as illustrated in Figure 20, chip 700 may additionally include a memory 720. Processor 710 may invoke and execute a computer program stored in memory 720, so as to implement the method in disclosure embodiments.

[00350] The 720 memory can be a separate device independent of the 710 processor or it can be integrated into the 710 processor.

[00351] Optionally, the 700 chip may additionally include a 730 input interface. The 710 processor may control the 730 input interface to communicate with other devices or chips and, specifically, to obtain information or data transmitted by other devices or Petition 870250089290, dated 10 / 01 / 2025, pp. 80 / 211 73 / 79 chips.

[00352] Optionally, the 700 chip may additionally include a 740 output interface. The 710 processor may control the 740 output interface to communicate with other devices or chips and, specifically, to send information or data to other devices or chips.

[00353] Optionally, the chip can be applied to the transmitter in disclosure modes, and the chip can implement corresponding operations implemented by the transmitter in various methods in disclosure modes, which will not be repeated in this document for the sake of brevity.

[00354] Optionally, the chip can be applied to the receiver in disclosure modes, and the chip can implement corresponding operations implemented by the receiver in various methods in disclosure modes, which will not be repeated in this document for the sake of brevity.

[00355] It can be understood that the chip mentioned in the disclosure details may also be referred to as a SoC, etc.

[00356] Figure 21 is a schematic block diagram of a 900 communication system provided in disclosure embodiments. As illustrated in Figure 21, the 900 communication system includes a transmitter 910 and a receiver 920.

[00357] Transmitter 910 can be configured to implement corresponding functions implemented by the transmitter in the previous methods, and receiver 920 can be configured to implement corresponding functions implemented by the receiver in the previous methods, which does not Petition 870250089290, dated 10 / 01 / 2025, pp. 81 / 211 4 / 79 will be repeated in this document for the sake of brevity.

[00358] It can be understood that the processor in the disclosure embodiments can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the embodiments of the above method can be completed by a hardware integrated logic circuit in the processor or by a software instruction. The processor can be a general-purpose processor, a digital signal processor (DSP), an ASIC, a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logic blocks disclosed in the disclosure embodiments can be implemented or executed. The general-purpose processor can be a microprocessor, or the processor can be any conventional processor or similar.The method steps disclosed in the disclosure embodiments can be implemented directly by a hardware decoding processor or can be executed by hardware and software modules within the decoding processor. The software module can be located in a capability-mature storage medium, such as random access memory (RAM), flash memory, read-only memory (ROM), programmable ROM (PROM), or electrically erasable programmable memory, registers, and the like. The storage medium is located in memory. The processor reads the information from memory and completes the method steps described above using the processor hardware.

[00359] It can be understood that memory in the forms of dissemination can be volatile memory or a Petition 870250089290, dated 10 / 01 / 2025, page 82 / 211 75 / 79 non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may be a ROM, a PROM, an erasable PROM (EPROM), an electrical EPROM (EEPROM), or flash memory. Volatile memory may be RAM that acts as an external cache. By way of example, without limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double-rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It may be noted that the memory of the systems and methods described in the disclosure is intended to include, without limitation, these and any other suitable types of memory.

[00360] It can be understood that the above memory is intended for illustration and not limitation. For example, memory in the disclosure modalities can also be an SRAM, a DRAM, an SDRAM, a DDR SDRAM, an ESDRAM, an SLDRAM, a DR RAM, etc. In other words, memory in the disclosure modalities is intended to include, but is not limited to, these and any other suitable types of memory.

[00361] A computer-readable storage medium is additionally provided in the embodiments of the disclosure. The computer-readable storage medium is configured to store a computer program.

[00362] Optionally, computer-readable storage media may be applied to the transmitter in various forms of disclosure, and the computer program causes a computer to perform corresponding operations implemented by the transmitter in various methods in various forms of disclosure, which will not be repeated here. Petition 870250089290, dated 10 / 01 / 2025, page 83 / 211 6 / 79 document for the sake of brevity.

[00363] Optionally, computer-readable storage media may be applied to the recipient in various disclosure modes, and the computer program causes a computer to perform corresponding operations implemented by the recipient in various disclosure modes, which will not be repeated in this document for the sake of brevity.

[00364] A computer program product is additionally provided in forms of disclosure. The computer program product includes computer program instructions.

[00365] Optionally, the computer program output can be applied to the transmitter in various disclosure modes, and the computer program instructions cause a computer to execute the corresponding operations implemented by the transmitter in various disclosure modes, which will not be repeated in this document for the sake of brevity.

[00366] Optionally, the computer program product may be applied to the recipient in various disclosure modes, and the computer program instructions cause a computer to perform corresponding operations implemented by the recipient in various disclosure modes, which will not be repeated in this document for the sake of brevity.

[00367] A computer program is additionally provided in forms of disclosure.

[00368] Optionally, the computer program can be applied to the transmitter in dissemination modes. Petition 870250089290, dated 10 / 01 / 2025, p. 84 / 211 77 / 79 The computer program, when executed by a computer, causes the computer to implement the corresponding operations implemented by the transmitter in various methods of dissemination, which will not be repeated in this document for the sake of brevity.

[00369] Optionally, the computer program can be applied to the recipient in various disclosure modes. The computer program, when executed by a computer, causes the computer to implement the corresponding operations implemented by the recipient in various disclosure modes, which will not be repeated in this document for the sake of brevity.

[00370] It will be appreciated by those skilled in the art that the algorithmic units and operations of various examples described in connection with the embodiments of the disclosure can be implemented by electronic hardware or by a combination of computer software and electronic hardware. Whether these functions are performed by means of hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods with respect to each particular application to implement the described functionality, but such methods should not be considered as being outside the scope of the disclosure.

[00371] It will be evident to those skilled in the art that, for the sake of convenience and brevity, in terms of the specific working processes of the aforementioned systems, apparatus and units, reference may be made to the corresponding processes in the modalities of the previous method, which will not be repeated here. Petition 870250089290, dated 10 / 01 / 2025, page 85 / 211 78 / 79

[00372] It will be appreciated that the systems, apparatus, and methods disclosed in the embodiments of the disclosure may also be implemented in various other ways. For example, the embodiments of the apparatus above are merely illustrative; for instance, the division of units is only a division of logical functions, and other methods of division may be available in practice; for example, multiple units or sets may be combined or integrated into another system, or some features may be ignored or skipped. In other respects, the coupling or direct coupling or communication connection, as illustrated or discussed, may be an indirect coupling or communication connection through some interface, device, or unit, and may be electrical, mechanical, or otherwise.

[00373] The separate units, as illustrated, may or may not be physically separate. The components shown as units may or may not be physical units and may reside in one location or may be distributed to multiple networked units. Some or all of the units may be selectively adopted according to practical needs to achieve the desired disclosure objectives.

[00374] Furthermore, several functional units described in various embodiments of the disclosure may be integrated into a processing unit or may be present as several physically separate units, and two or more units may be integrated into one.

[00375] If the functions are implemented as functional software units and sold or used as stand-alone products, they can be stored on a computer-readable storage medium. Based on such Petition 870250089290, dated 10 / 01 / 2025, page 86 / 211 79 / 79 understanding, the essential technical solution, or the part that contributes to the state of the art, or part of the technical solution of the disclosure may be embodied as software products. Computer software products may be stored on a storage medium and may include various instructions that, when executed, may cause a computer device, for example, a personal computer, a server, a network device, etc., to perform some or all of the operations of the methods described in various embodiments of the disclosure. The above storage medium may include various types of media that can store program code, such as a Universal Serial Bus (USB) flash disk, a portable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[00376] The preceding elaborations are merely embodiments of the disclosure, but are not intended to limit the scope of protection of the disclosure. Any variation or substitution readily devised by those skilled in the art within the scope of the art disclosed in the disclosure shall fall within the scope of protection of the disclosure. Therefore, the scope of protection of the disclosure shall be subject to the scope of protection of the claims. Petition 870250089290, dated 10 / 01 / 2025, page 87 / 211

Claims

1 / 4 CLAIMS 1. METHOD FOR WIRELESS COMMUNICATION characterized by comprising: transmitting, by a transmitter, a first data unit of the physical layer protocol (PPDU) of extended long range (ELR) of ultra-high reliability (UHR), wherein the first PPDU ELR UHR comprises a data field, the data field is transmitted at a granularity of a first feature unit in the frequency domain with N times doubling in the bandwidth of the first PPDU UHR, and N is equal to 4.

2. METHOD, according to claim 1, characterized in that the first UHR ELR PPDU further comprises a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal field (L-SIG), a repeated L-SIG field (RL-SIG), a universal signal field (U-SIG), a UHR-STF, a UHR-LTF and a packet extension field (PE).

3. METHOD, according to claim 2, characterized in that the duration of the L-STF is 8 ps, the duration of the L-LTF is 8 ps, the duration of the L-SIG field is 4 ps, the duration of the RL-SIG field is 4 ps, the duration of the U-SIG field is 8 ps, and the duration of the UHR-STF is 4 ps.

4. METHOD, according to claim 2 or 3, characterized by the U-GIS field comprising a first part U-GIS-1 and a second part U-GIS-2.

5. METHOD, according to any one of claims 2 to 4, characterized in that the U-SIG field comprises a physical version identifier (PHY) field, a bandwidth (BW) field, an uplink / downlink (UL / DL) field, a basic service set (BSS) color field, a transmission opportunity (TXOP) field, a duplication transmission mode field, a number of duplications field, a disregard field, a validation field, a PPDU type and compression mode field, a punched channel information field, a UHR-SIG modulation and coding scheme (MCS) field, a UHR-SIG number of symbols field, a cyclic redundancy check (CRC) field, and a tail field.

6. METHOD, according to any one of claims 2 to 4, characterized in that the U-SIG field comprises at least one PHY version identifier field, one BW field, one UL / DL field, one BSS color field, one TXOP field, one disregard field, one validation field, one PPDU compression type and mode field, one CRC field, and one tail field.

7. METHOD, according to any one of claims 1 to 6, characterized in that one or more N-1 data field duplication transmissions have a phase rotation shift relative to a first data field transmission.

8. METHOD, according to any one of claims 1 to 7, characterized in that the transmitter is an access point (AP) or a station (STA).

9. METHOD FOR WIRELESS COMMUNICATION characterized by comprising: receiving, by a receiver, a first physical layer protocol data unit (PPDU) of extended long range (ELR) of ultra-high reliability (UHR) transmitted by a transmitter, wherein the first UHR ELR PPDU comprises a data field, the data field is transmitted at a granularity of a first feature unit in the frequency domain with N times doubling in a bandwidth of the first UHR ELR PPDU, and N is equal to 4.

10. METHOD, according to claim 9, characterized in that the first UHR ELR PPDU additionally comprises a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal field (L-SIG), a repeated L-SIG field (RL-SIG), a universal signal field (U-SIG), a UHR-STF, a UHR-LTF and a packet extension field (PE).

11. METHOD, according to claim 10, characterized in that the duration of the L-STF is 8 ps, the duration of the L-LTF is 8 ps, the duration of the L-SIG field is 4 ps, the duration of the RL-SIG field is 4 ps, the duration of the U-SIG field is 8 ps, and the duration of the UHR-STF is 4 ps.

12. METHOD, according to any one of claims 10 or 11, characterized by the U-GIS field comprising a first part U-GIS-1 and a second part USIG-2.

13. METHOD, according to any one of claims 10 to 12, characterized in that the U-SIG field comprises at least one physical version identifier (PHY) field, a bandwidth field, BW, an uplink / downlink field (UL / DL), a basic service set (BSS) color field, a transmission opportunity field (TXOP), a disregard field, a validation field, a PPDU type and compression mode field, a cyclic redundancy check (CRC) field and a tail field.

14. TRANSMITTER characterized by comprising: a communication unit configured to transmit an ultra-high reliability (UHR) extended long-range physical layer protocol first data unit (PPDU), wherein the first UHR ELR PPDU comprises a data field, the data field is transmitted at a granularity of one first feature unit in the frequency domain with N times duplication in the bandwidth of the first UHR PPDU and N equals 4.

15. RECEIVER characterized by comprising: a communication unit configured to receive a first data unit of an extended long-range (ELR) physical layer protocol (UHR) transmitted by a transmitter, wherein the first UHR ELR PPDU comprises a data field, the data field is transmitted at a granularity of one first feature unit in the frequency domain with N times duplication in one bandwidth of the first UHR ELR PPDU, and N equals 4. Petition 870250089290, dated 10 / 01 / 2025, p. 91 / 211

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