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WO2025118146A1 - Procédé et appareil d'envoi de signal sans fil, procédé et appareil de réception de signal sans fil, dispositif et support - Google Patents

Procédé et appareil d'envoi de signal sans fil, procédé et appareil de réception de signal sans fil, dispositif et support Download PDF

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Publication number
WO2025118146A1
WO2025118146A1 PCT/CN2023/136482 CN2023136482W WO2025118146A1 WO 2025118146 A1 WO2025118146 A1 WO 2025118146A1 CN 2023136482 W CN2023136482 W CN 2023136482W WO 2025118146 A1 WO2025118146 A1 WO 2025118146A1
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WIPO (PCT)
Prior art keywords
subcarriers
dru
type
data subcarriers
data
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PCT/CN2023/136482
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English (en)
Chinese (zh)
Inventor
罗朝明
李雅璞
高宁
卢刘明
忻良骁
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to PCT/CN2023/136482 priority Critical patent/WO2025118146A1/fr
Publication of WO2025118146A1 publication Critical patent/WO2025118146A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the embodiments of the present application relate to the field of communication technology, and in particular to a method for sending, a method for receiving, an apparatus, a device and a medium for sending a wireless signal.
  • interleaving more pilot subcarriers (which can be called interference cancellation subcarriers) in the data subcarriers can improve the reliability of transmitting wireless signals.
  • dispersing the subcarriers in a smaller resource unit (RU) into a larger bandwidth can achieve the transmission of wireless signals over longer distances.
  • the embodiments of the present application provide a method for sending a wireless signal, a method for receiving a wireless signal, an apparatus, a device and a medium.
  • the technical solution is as follows:
  • a method for sending a wireless signal comprising:
  • the first type DRU includes data subcarriers and non-data subcarriers, the ratio of the number of non-data subcarriers to the total number of data subcarriers and non-data subcarriers is greater than thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers.
  • a method for receiving a wireless signal comprising:
  • the first type DRU includes data subcarriers and non-data subcarriers, the ratio of the number of non-data subcarriers to the total number of data subcarriers and non-data subcarriers is greater than thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers.
  • a method for sending a wireless signal comprising:
  • the DRU group includes adjacent first-type DRUs and second-type DRUs, all or part of the data subcarriers in the first-type DRUs are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group exceeds thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers.
  • a method for receiving a wireless signal comprising:
  • the DRU group includes adjacent first-type DRUs and second-type DRUs, all or part of the data subcarriers in the first-type DRUs are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group exceeds thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers.
  • a device for sending a wireless signal comprising:
  • a sending module configured to send the wireless signal using a first type DRU
  • the first type DRU includes data subcarriers and non-data subcarriers, the ratio of the number of non-data subcarriers to the total number of data subcarriers and non-data subcarriers is greater than thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers.
  • a device for receiving a wireless signal comprising:
  • a receiving module configured to receive the wireless signal sent using the first type DRU
  • the first type DRU includes data subcarriers and non-data subcarriers, the ratio of the number of non-data subcarriers to the total number of data subcarriers and non-data subcarriers is greater than thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers.
  • a device for sending a wireless signal comprising:
  • a sending module used for sending the wireless signal using a DRU group
  • the DRU group includes adjacent first-type DRUs and second-type DRUs, all or part of the data subcarriers in the first-type DRUs are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group is greater than thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers one.
  • a receiving module used to receive the wireless signal sent by the DRU group
  • the DRU group includes adjacent first-type DRUs and second-type DRUs, all or part of the data subcarriers in the first-type DRUs are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group exceeds thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers.
  • a communication device comprising:
  • transceiver coupled to the processor
  • a memory for storing executable instructions for the processor
  • the processor is configured to load and execute executable instructions to implement the wireless signal sending method and/or receiving method as described in the above aspects.
  • a computer-readable storage medium in which a computer program is stored.
  • the computer program is loaded and executed by a communication device to implement a method for sending and/or receiving a wireless signal as described in the above aspects.
  • a computer program product or a computer program which includes computer instructions, and the computer instructions are stored in a computer-readable storage medium; a communication device reads the computer instructions from the computer-readable storage medium, and a processor executes the computer instructions to implement a method for sending and/or a method for receiving wireless signals as described in the above aspects.
  • the first type of DRU By using the first type of DRU to send wireless signals, it is not only possible to transmit wireless signals over longer distances, but also to improve the reliability of transmitting wireless signals. Since the subcarriers in the first type of DRU are dispersed over a larger bandwidth, each data subcarrier in the first type of DRU can use more energy to send wireless signals, thereby being able to transmit wireless signals over longer distances. And the ratio of the number of non-data subcarriers in the first type of DRU to the number of all subcarriers is more than thirteenth, that is, the number of non-data subcarriers in the first type of DRU is greater, so the reliability of transmitting wireless signals is higher.
  • FIG1 shows a schematic diagram of a resource unit provided by the related art
  • FIG2 shows a schematic diagram of a resource unit provided by the related art
  • FIG3 is a schematic diagram showing a subcarrier in a resource unit provided by the related art
  • FIG4 shows a schematic diagram of subcarriers in a resource unit provided by the related art
  • FIG5 is a schematic diagram showing a subcarrier in a resource unit provided by the related art
  • FIG6 shows a schematic diagram of subcarriers in a resource unit provided by the related art
  • FIG7 shows a schematic diagram of subcarriers in a resource unit provided by the related art
  • FIG8 is a schematic diagram showing a subcarrier in a resource unit provided by the related art.
  • FIG9 shows a schematic diagram of subcarriers in a resource unit provided by the related art
  • FIG10 shows a schematic diagram of a communication system provided in an embodiment of the present application.
  • FIG11 is a flowchart of a method for sending a wireless signal provided in an embodiment of the present application.
  • FIG12 is a flowchart of a method for sending a wireless signal provided in an embodiment of the present application.
  • FIG13 is a schematic diagram showing target indication information provided by an embodiment of the present application.
  • FIG14 is a schematic diagram showing target indication information provided by an embodiment of the present application.
  • FIG15 is a schematic diagram showing target indication information provided by an embodiment of the present application.
  • FIG16 is a schematic diagram showing target indication information provided by an embodiment of the present application.
  • FIG17 shows a flow chart of a method for receiving a wireless signal provided in an embodiment of the present application
  • FIG18 is a flowchart of a method for sending a wireless signal provided in an embodiment of the present application.
  • FIG19 is a flowchart of a method for sending a wireless signal provided in an embodiment of the present application.
  • FIG20 shows a flow chart of a method for receiving a wireless signal provided in an embodiment of the present application
  • FIG21 shows a structural block diagram of a wireless signal sending device provided in an embodiment of the present application.
  • FIG22 shows a structural block diagram of a wireless signal receiving device provided in an embodiment of the present application.
  • FIG23 shows a structural block diagram of a wireless signal sending device provided in an embodiment of the present application.
  • FIG24 shows a structural block diagram of a wireless signal receiving device provided in an embodiment of the present application.
  • FIG25 shows a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the word "if” as used herein can be interpreted as “at the time of” or "when” or "in response to determination”.
  • the positions of RUs of various sizes in 20 MHz, 40 MHz, and 80 MHz HE physical layer protocol data units are also different.
  • PHY Protocol Data Unit, PPDU Physical layer protocol data units
  • the position of the RU in the 20 MHz HE PPDU is shown in FIG. 1
  • the position of the RU in the 40 MHz HE PPDU is shown in FIG. 2.
  • the position of the RU in the 80 MHz HE PPDU can refer to the combination of the positions of two RUs in the 40 MHz HE PPDU
  • the position of the RU in the 160 MHz HE PPDU can refer to the combination of the positions of four RUs in the 40 MHz HE PPDU, and there can be other more combinations.
  • the positions of RUs of different sizes in 20MHz, 40MHz, and 80MHz EHT PPDUs are also different.
  • the position of the RU in the 20MHz EHT PPDU is the same as the position of the RU in the 20MHz HE PPDU, see Figure 1 above.
  • the position of the RU in the 40MHz EHT PPDU is the same as the position of the RU in the 40MHz HE PPDU, see Figure 2 above. And there can be many other combinations.
  • each 26-tone RU contains 2 pilot tones
  • each 52-tone RU contains 4 pilot tones
  • each 106-tone RU contains 4 pilot tones
  • each 242-tone RU contains 8 pilot tones
  • each 484-tone RU contains 16 pilot tones
  • each 996-tone RU contains 16 pilot tones.
  • EHT PPDUs For EHT sites, the number and positions of pilot subcarriers in 20MHz and 40MHz EHT PPDUs of 26-channel RU, 52-channel RU, 106-channel RU, 242-channel RU, and 484-channel RU are consistent with those in HE PPDU.
  • EHT PPDUs 26-channel RU, 52-channel RU, 106-channel RU, 242-channel RU, 484-channel RU, and 996-channel RU remains the same as that in HE PPDU, but the positions are slightly different.
  • the 26-channel RU in the related art includes 2 pilot subcarriers and 24 data subcarriers. Using more pilot subcarriers and fewer data subcarriers in the 26-channel RU can improve transmission reliability. In this way, the receiver of the signal can use more antennas than the number of spatial streams (NSS) of received data to achieve interference reduction.
  • NSS spatial streams
  • MVDR minimum variance distortionless response
  • y represents the received signal
  • s represents the original signal
  • h represents the channel through which the original signal s passes during transmission
  • ⁇ represents the noise intensity
  • n represents Additive White Gaussian Noise (AWGN)
  • r represents the interference signal
  • g represents the channel through which the interference signal r passes.
  • AWGN Additive White Gaussian Noise
  • ⁇ satisfies SNR stands for signal-to-noise ratio.
  • the estimated value of the signal receiver for channel h is h*
  • the estimated value for channel g is g*.
  • DRU Distributed Resource Unit
  • the proposal proposes to disperse the subcarriers of a smaller RU into a larger bandwidth to obtain at least one DRU.
  • the transmitter device of the wireless signal can use subcarriers with larger intervals on a larger bandwidth, and can use more energy to transmit on each subcarrier, thereby achieving the effect of increasing the transmission distance.
  • these subcarriers should be dispersed into a larger bandwidth as much as possible. For example, the theoretical optimum is 1 channel per MHz.
  • the size of the DRU obtained by dispersing the subcarriers of a smaller RU into a larger bandwidth should be consistent with the size of the RU in the relevant technology.
  • the subcarriers of the smaller RU are dispersed into a larger bandwidth to obtain three DRUs, and the number of subcarriers in each DRU is the same as the number of subcarriers in one RU, that is, the size of each DRU should be consistent with the size of the RU in the relevant technology.
  • an example is given by dispersing the subcarriers in a 26-channel RU to a larger bandwidth to obtain a 26-channel DRU.
  • Option 1 Define new pilot subcarriers. For each 26-channel DRU, select the 7th and 20th subcarriers among the 26 subcarriers as pilot subcarriers. For example, as shown in FIG5 , the 26 subcarriers in a 26-channel DRU are dispersed in a large bandwidth, and according to the definition of pilot subcarriers in the new DRU, the 7th subcarrier and the 20th subcarrier are pilot subcarriers.
  • Option 2 Use the pilot subcarriers defined in the related art. That is, the x-th DRU contains 24 scattered data subcarriers and 2 pilot subcarriers in the x-th RU. Exemplarily, as shown in FIG6 , the 26 subcarriers in a 26-channel DRU are scattered over a large bandwidth, where the positions of the 2 pilot subcarriers are the same as those in the related art. This option is more sensitive to the Carrier Frequency Offset (CFO) error, so the performance of Option 2 is not as good as Option 1.
  • CFO Carrier Frequency Offset
  • Option 3 Use the pilot subcarriers in the related art, but distribute them as much as possible. That is, the xth DRU contains 24 dispersed data subcarriers and dispersed pilot subcarriers in the related art. For example, in the related art, for a 20MHz bandwidth, there are 18 pilot subcarriers in total, and these pilot subcarriers are dispersedly allocated to x 26-channel DRUs. For example, as shown in FIG7, the first pilot subcarrier of the 18 pilot subcarriers is allocated to the 24 dispersed data subcarriers.
  • the first pilot subcarrier and the tenth pilot subcarrier are allocated as a group to the first 26-channel DRU, and the second pilot subcarrier and the eleventh pilot subcarrier of the 18 pilot subcarriers are allocated as a group to the second 26-channel DRU.
  • This option is an optimization of option 2, and its performance is comparable to option 1.
  • This proposal designs a tone plan for DRUs at 20MHz, 40MHz, and 80MHz.
  • the resource unit allocation field value (RU Allocation field) in the related technology is reused to indicate DRU allocation information. DRUs and RUs will not be used in the same 20MHz at the same time. Larger DRUs are composed of smaller DRUs.
  • one subcarrier is alternately allocated to the first, second, and ninth DRUs in the order of frequency from small to large among the subcarriers of all RUs in 20 MHz, and then to the first, second, and ninth DRUs, until the allocation is completed. That is, each DRU selects one subcarrier from every nine subcarriers in turn.
  • the communication plan for DRU at 20MHz is:
  • 52-way DRU1 26-way DRU1 + 26-way DRU6;
  • 52-way DRU2 26-way DRU2 + 26-way DRU7;
  • 106-channel DRU1 52-channel DRU1 + 52-channel DRU3 + 2 empty subcarriers
  • 106-channel DRU2 52-channel DRU2 + 52-channel DRU4 + 2 empty subcarriers
  • the communication plan for DRU at 40MHz is:
  • 52-way DRU1 26-way DRU1 + 26-way DRU10;
  • 52-way DRU5 26-way DRU6 + 26-way DRU15;
  • 52-way DRU6 26-way DRU7 + 26-way DRU16;
  • 52-way DRU8 26-way DRU9 + 26-way DRU18;
  • 106-channel DRU1 52-channel DRU1 + 52-channel DRU5 + 2 empty subcarriers
  • 106-channel DRU2 52-channel DRU2 + 52-channel DRU6 + 2 empty subcarriers
  • 106-channel DRU3 52-channel DRU3 + 52-channel DRU7 + 2 empty subcarriers
  • 106-channel DRU4 52-channel DRU4 + 52-channel DRU8 + 2 empty subcarriers
  • 242-channel DRU1 106-channel DRU1 + 106-channel DRU3 + 26-channel DRU5 + 4 empty subcarriers;
  • 242-channel DRU2 106-channel DRU2 + 106-channel DRU4 + 26-channel DRU14 + 4 empty subcarriers;
  • the communication plan for DRU at 80MHz is:
  • 52-way DRU1 26-way DRU1 + 26-way DRU19;
  • 52-way DRU2 26-way DRU2 + 26-way DRU20;
  • 52-way DRU5 26-way DRU6 + 26-way DRU24;
  • 52-way DRU6 26-way DRU7 + 26-way DRU25;
  • 52-way DRU8 26-way DRU9 + 26-way DRU27;
  • 52-way DRU9 26-way DRU10 + 26-way DRU28;
  • 52-way DRU10 26-way DRU11 + 26-way DRU29;
  • 52-way DRU11 26-way DRU12 + 26-way DRU30;
  • 52-way DRU12 26-way DRU13 + 26-way DRU31;
  • 52-way DRU13 26-way DRU15 + 26-way DRU33;
  • 52-way DRU14 26-way DRU16 + 26-way DRU34;
  • 52-way DRU15 26-way DRU17 + 26-way DRU35;
  • 52-way DRU16 26-way DRU18 + 26-way DRU36;
  • 106-channel DRU1 52-channel DRU1 + 52-channel DRU9 + 2 empty subcarriers
  • 106-channel DRU2 52-channel DRU2 + 52-channel DRU10 + 2 empty subcarriers
  • 106-channel DRU3 52-channel DRU3 + 52-channel DRU11 + 2 empty subcarriers
  • 106-channel DRU4 52-channel DRU4 + 52-channel DRU12 + 2 empty subcarriers
  • 106-channel DRU5 52-channel DRU5 + 52-channel DRU13 + 2 empty subcarriers
  • 106-channel DRU6 52-channel DRU6 + 52-channel DRU14 + 2 empty subcarriers
  • 106-channel DRU7 52-channel DRU7 + 52-channel DRU15 + 2 empty subcarriers
  • 106-channel DRU8 52-channel DRU8 + 52-channel DRU16 + 2 empty subcarriers
  • DRU1 106 channels for DRU1 + 106 channels for DRU5 + 26 channels for DRU5 + 4 empty subcarriers;
  • 242-channel DRU2 106-channel DRU2 + 106-channel DRU6 + 26-channel DRU14 + 4 empty subcarriers;
  • DRU3 106 channels for DRU3 + 106 channels for DRU7 + 26 channels for DRU23 + 4 empty subcarriers;
  • 242-channel DRU4 106-channel DRU4 + 106-channel DRU8 + 26-channel DRU32 + 4 empty subcarriers;
  • the above-mentioned null subcarrier exists between 26-channel RU or 52-channel RU.
  • the null subcarrier is used as a data subcarrier.
  • the proposal proposes that a DRU design is also required under 160MHz bandwidth.
  • the proposal also proposes that when there is preamble puncturing, there are two solutions for the DRU design:
  • Solution 1 Design a new communication plan to spread the subcarriers across the entire occupied channel, for example, when 20MHz is punctured in 80MHz, spread the subcarriers across the occupied 60Mhz. This option has better performance.
  • Solution 2 Combine existing DRU plans, for example, combine 20MHz and 40MHz DRU plans to form a 60Mhz DRU plan. This option is relatively simple to implement.
  • the proposal also suggests that it is necessary to define a small DRU in a smaller bandwidth, but it may not be necessary to define a small DRU in a larger bandwidth. For example, it is necessary to define a 26-channel DRU in a 20MHz bandwidth, but it may not be necessary to define a small 26-channel DRU in an 80MHz or 160MHz bandwidth.
  • the index of the pilot subcarrier in the DRU is the index of the pilot subcarrier in the DRU.
  • the proposal also suggests that the design of DRU also needs to consider CFO errors and interference between resource units, but does not provide a specific solution.
  • each DRU can select two or more consecutive subcarriers. Exemplarily, as shown in Figure 9, all subcarriers in 20MHz are alternately allocated 2 subcarriers in order of frequency from small to large to the first, second, to the ninth DRU, and then to the first, second, to the ninth DRU, until the allocation is completed.
  • Downlink (DL) DRU Downlink (DL) DRU:
  • the proposal points out that the above proposals all use DRUs in uplink transmission.
  • the proposal points out that DRUs can also be used in downlink transmission.
  • the proposal points out that the bit error rate (BER) curves of different resource units in the same channel vary greatly. Therefore, when performing rate adaptation, if the size and/or position of the RU of a certain site needs to be changed between two transmissions, it may be necessary to re-measure the channel and/or change the modulation and coding scheme (MCS). However, the BER curves of different DRUs in the same channel vary less. Therefore, when using DRUs, rate adaptation can be independent of the position and size of the DRU, which can reduce the load and complexity when implementing rate adaptation.
  • MCS modulation and coding scheme
  • FIG10 is a schematic diagram of a communication system 10 provided by an exemplary embodiment of the present application.
  • the communication system 10 includes terminals and terminals, or terminals and network devices, or access points (AP) and stations (STA), which are not limited in the present application.
  • the present application takes the communication system 10 including: AP110 and STA120 as an example for explanation.
  • AP can also be called AP STA, that is, in a sense, AP is also a STA.
  • STA can also be called non-AP STA.
  • STA may include AP STA and non-AP STA.
  • Communication in the communication system may be communication between AP and non-AP STA, communication between non-AP STA and non-AP STA, or communication between STA and peer STA, wherein peer STA may refer to a device that communicates with the STA peer, for example, peer STA may be AP or non-AP STA.
  • peer STA may refer to a device that communicates with the STA peer, for example, peer STA may be AP or non-AP STA.
  • Uplink communication refers to STA sending a signal to AP
  • downlink communication refers to AP sending a signal to STA.
  • AP is equivalent to a bridge connecting wired network and wireless network, and its main function is to connect various wireless network clients together and then connect the wireless network to Ethernet.
  • AP device may be a terminal device (such as a mobile phone) or a network device (such as a router) with a Wireless Fidelity (WiFi) chip.
  • a terminal device such as a mobile phone
  • a network device such as a router
  • WiFi Wireless Fidelity
  • different communication devices may use different DRUs when transmitting wireless signals.
  • APs and non-AP STAs can be devices used in the Internet of Vehicles, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.
  • IoT Internet of Things
  • non-AP STA may support but not be limited to 802.11bf.
  • Non-AP STA may also support various current and future 802.11 family wireless local area network (WLAN) standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a.
  • WLAN wireless local area network
  • AP may be a device supporting 802.11bf.
  • AP may also be a device supporting various current and future 802.11 family WLAN standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a.
  • STA can be a mobile phone, tablet computer, computer, virtual reality (VR) device, augmented reality (AR) device, communication equipment in industrial control, set-top box, communication equipment in unmanned driving, vehicle-mounted communication equipment, communication equipment in telemedicine, communication equipment in smart grid, communication equipment in transportation safety, communication equipment in smart city or communication equipment in smart home, wireless communication chip, etc.
  • WLAN technology can support frequency bands including but not limited to: low frequency band (2.4GHz, 5GHz, 6GHz), high frequency band (60GHz).
  • the station and the access point support multi-band communication, for example, communicating on the 2.4 GHz, 5 GHz, 6 GHz and 60 GHz bands at the same time, or communicating on different channels of the same band (or different bands) at the same time, so as to improve the communication throughput and/or reliability between devices.
  • Such a device is generally referred to as a multi-band device, and may also be referred to as a multi-link device (Multi-Link Device, MLD), and is sometimes also referred to as a multi-link entity or a multi-band entity.
  • MLD multi-link device
  • a multi-link device may be an access point device or a station device.
  • the multi-link device includes one or more APs; if the multi-link device is a station device, the multi-link device includes one or more non-AP STAs.
  • a multi-link device including one or more APs may also be referred to as an AP, and a multi-link device including one or more non-AP STAs may also be referred to as a Non-AP.
  • a Non-AP may be referred to as a STA.
  • an AP may include multiple APs
  • a Non-AP may include multiple STAs
  • multiple links may be formed between multiple APs in the AP and multiple STAs in the Non-AP
  • data communication may be performed between the APs in the AP and corresponding STAs in the Non-AP through corresponding links.
  • STA is a device deployed in a wireless local area network to provide wireless communication functions for STA.
  • STA may include: User Equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, user agent or user device.
  • UE User Equipment
  • STA can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and the embodiments of the present application are not limited to this.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • both STA and AP support the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, but are not limited to the IEEE 802.11 standard.
  • IEEE Institute of Electrical and Electronics Engineers
  • FIG. 11 shows a flowchart of a method for sending a wireless signal provided by an exemplary embodiment of the present application.
  • the method is performed by a first device, which is a signal sender, and the first device can be an AP or a STA.
  • the method includes:
  • Step 220 Use the first type DRU to send a wireless signal.
  • the first type DRU includes data subcarriers and non-data subcarriers, wherein the data subcarriers are used to transmit data signals, and the non-data subcarriers are subcarriers other than the data subcarriers in all subcarriers.
  • the non-data subcarriers include at least one of pilot subcarriers and interference cancellation subcarriers.
  • all non-data subcarriers are pilot subcarriers.
  • all non-data subcarriers are interference cancellation subcarriers.
  • part of the non-data subcarriers are pilot subcarriers and the other part are interference cancellation subcarriers, and the pilot subcarriers can be multiplexed as interference cancellation subcarriers or the interference cancellation subcarriers can be multiplexed as pilot subcarriers.
  • pilot subcarriers and interference cancellation subcarriers can be multiplexed with each other, it is equivalent to that all non-data subcarriers are pilot subcarriers or all non-data subcarriers are interference cancellation subcarriers.
  • the non-data subcarriers also include null subcarriers.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers exceeds 13. Exemplarily, assuming that the first type DRU is a 26-channel DRU, the number of non-data subcarriers in the first type DRU is greater than 2.
  • a ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is equal to or greater than two-thirteenth.
  • a ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is equal to or greater than one-fifth.
  • a ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is equal to or greater than three tenths.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers should also be less than a quantity threshold.
  • the quantity threshold is predefined or dynamically adjusted based on the demand for wireless signal transmission.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is less than one-half.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is less than four-fifths.
  • the first type DRU may also be referred to as an enhanced DRU (EDRU).
  • the first type DRU may be at least one of a 26-way EDRU, a 52-way EDRU, a 106-way EDRU, a 242-way EDRU, and a 484-way EDRU.
  • the first type DRU is a 26-way EDRU as an example for illustration.
  • the positions of all non-data subcarriers in the first type DRU are uniformly distributed.
  • the uniform distribution includes at least one of the following:
  • the positions of all non-data subcarriers in the first type DRU are evenly distributed in every 26 subcarriers.
  • the first type DRU includes 13 non-data subcarriers, and the position of each non-data subcarrier is an even number of the 26 subcarriers or the position of each non-data subcarrier is an odd number of the 26 subcarriers.
  • positions of all non-data subcarriers in the first type DRU are evenly distributed in a bandwidth corresponding to one first type DRU.
  • the locations of all non-data subcarriers in the first type DRU are uniformly distributed in the bandwidth of one subchannel.
  • the variance of the interval between two adjacent non-data subcarriers in the first type DRU is less than a threshold.
  • the threshold is predefined or dynamically adjusted according to signal transmission conditions. That is, the positions of all non-data subcarriers in the first type DRU may not be completely evenly distributed, but are as evenly distributed as possible.
  • the first type of DRU includes the following two possible designs:
  • Design 1 The positions of all non-data subcarriers in the first type DRU are different from the position of at least one non-data subcarrier in the second type DRU;
  • Design 2 The positions of some non-data subcarriers in the first type DRU are the same as the positions of all non-data subcarriers in the second type DRU.
  • the ratio of the number of non-data subcarriers in the second type DRU to the total number of data subcarriers and non-data subcarriers is thirteenth.
  • the second type DRU can be understood as a traditional type DRU, that is, it can be understood as a DRU that has been proposed in the above-mentioned related proposals.
  • the first type DRU has a larger proportion of non-data subcarriers in all subcarriers than the second type DRU.
  • the method provided in this embodiment can not only achieve the transmission of wireless signals over longer distances, but also improve the reliability of transmitting wireless signals. Since the subcarriers in the first type DRU are dispersed in a larger bandwidth, each data subcarrier in the first type DRU can use more energy to send wireless signals, thereby being able to transmit wireless signals over longer distances. And the ratio of the number of non-data subcarriers in the first type DRU to the number of all subcarriers is more than thirteenth, that is, the first type DRU has a ratio of 1/3 to 2/4. The number of non-data subcarriers in a type of DRU is greater, so the reliability of transmitting wireless signals is higher.
  • the first type DRU includes n*26 subcarriers, where n is a positive integer. That is, in the first type DRU, the number of subcarriers is an integer multiple of 26.
  • the first type DRU includes n*26 subcarriers and 0 empty subcarriers, or the first type DRU includes n*26 subcarriers and 2 empty subcarriers, or the first type DRU includes n*26 subcarriers and 4 empty subcarriers. Each empty subcarrier can also be used to transmit data.
  • the first type of DRU here can be at least one of a 26-channel DRU, a 52-channel DRU, a 106-channel DRU, a 242-channel DRU, and a 484-channel DRU. Every 26 subcarriers mentioned below refer to subcarriers among n*26 subcarriers.
  • the first type of DRU also includes an empty subcarrier, the empty subcarrier needs to be skipped.
  • the 106-channel DRU can be considered to include 2 52-channel DRUs and 2 empty subcarriers, or understood to include 4 26-channel DRUs and 2 empty subcarriers.
  • the positions of all non-data subcarriers in the first type DRU are different from the position of at least one non-data subcarrier in the second type DRU. That is, the positions of new non-data subcarriers are defined in the first type DRU.
  • the 3rd, 6th, 9th, 12th, 15th, 18th, 21st, and 24th subcarriers of every 26 subcarriers in the first type DRU are non-data subcarriers.
  • the 9th subcarrier and the 21st subcarrier are pilot subcarriers
  • the 6 non-data subcarriers other than the 9th subcarrier and the 21st subcarrier are interference elimination subcarriers.
  • the 9th subcarrier and the 21st subcarrier are also multiplexed as interference elimination subcarriers.
  • the 6 non-data subcarriers other than the 9th subcarrier and the 21st subcarrier are also pilot subcarriers.
  • the 3rd, 6th, 9th, 12th, 15th, 18th, 21st, and 24th subcarriers in each first type DRU are non-data subcarriers, such as the non-data subcarriers in the above DRU 1 correspond to ⁇ -103, -76, -48, -21, 13, 40, 67, 95 ⁇ .
  • the 9th subcarrier and the 21st subcarrier are pilot subcarriers, such as the pilot subcarriers in the above DRU 1 correspond to ⁇ -48, 67 ⁇ .
  • the 6 non-data subcarriers except the 9th subcarrier and the 21st subcarrier are interference cancellation subcarriers, such as the interference cancellation subcarriers in the above DRU 1 correspond to ⁇ -103, -76, -21, 13, 40, 95 ⁇ .
  • Interference cancellation subcarriers and pilot subcarriers can be multiplexed with each other.
  • interference cancellation subcarriers can be multiplexed as pilot subcarriers
  • pilot subcarriers can also be multiplexed as interference cancellation subcarriers.
  • the 2nd, 5th, 8th, 11th, 14th, 17th, 20th, 23rd, and 26th subcarriers of every 26 subcarriers in the first type DRU are non-data subcarriers.
  • the 8th subcarrier and the 20th subcarrier are pilot subcarriers
  • the 7 non-data subcarriers except the 8th subcarrier and the 20th subcarrier are interference cancellation subcarriers.
  • the 8th subcarrier and the 20th subcarrier are also multiplexed as interference Eliminate subcarriers.
  • 7 non-data subcarriers except the 8th subcarrier and the 20th subcarrier are also pilot subcarriers.
  • 26-channel DRU1 to 26-channel DRU9 generates EDRU1 to EDRU9
  • 26-channel DRU10 to 26-channel DRU18 generates EDRU10 to EDRU18
  • 26-channel DRU19 to 26-channel DRU28 generates EDRU19 to EDRU28.
  • EDRU1 to EDRU9 For 160MHz PPDU, from 26-channel DRU1 to 26-channel DRU9, EDRU1 to EDRU9 are generated accordingly; from 26-channel DRU10 to 26-channel DRU18, EDRU10 to EDRU18 are generated accordingly; from 26-channel DRU19 to 26-channel DRU28, EDRU19 to EDRU28 are generated accordingly; and from 26-channel DRU29 to 26-channel DRU36, EDRU29 to EDRU36 are generated accordingly.
  • the same operation is performed on the 52-channel DRU and 106-channel DRU to obtain the corresponding 52-channel EDRU and 106-channel EDRU.
  • the same operations are performed on the 52-channel DRU, 106-channel DRU, and 242-channel DRU to obtain the corresponding 52-channel EDRU, 106-channel EDRU, and 242-channel EDRU.
  • the same operations are performed on the 52-channel DRU, 106-channel DRU, 242-channel DRU, and 484-channel DRU to obtain the corresponding 52-channel EDRU, 106-channel EDRU, 242-channel EDRU, and 484-channel EDRU.
  • the method provided in this embodiment by redefining the non-data subcarriers in the first type DRU, can improve not only the transmission distance but also the transmission reliability when using the first type DRU to send wireless signals. Since the non-data subcarriers in the first type DRU and at least one non-data subcarrier in the second type DRU are located at different positions, the first type DRU and the second type DRU can be better distinguished.
  • the first type DRU includes n*26 subcarriers, where n is a positive integer. That is, in the first type DRU, the number of subcarriers is an integer multiple of 26.
  • the positions of some non-data subcarriers in the first type DRU are the same as the positions of all non-data subcarriers in the second type DRU. That is, the positions of some non-data subcarriers in the first type DRU are the same as the positions of pilot subcarriers in the above three ways of designing pilot subcarriers in the DRU.
  • the positions of some non-data subcarriers in the first type DRU are the same as the positions of the pilot subcarriers in the first method of designing pilot subcarriers in the DRU described above. That is, the 7th subcarrier and the 20th subcarrier in every 26 subcarriers in the first type DRU are non-data subcarriers.
  • the first type DRU also includes at least one subcarrier other than the 7th subcarrier and the 20th subcarrier.
  • the first type DRU also includes at least three subcarriers other than the 7th subcarrier and the 20th subcarrier.
  • the first type DRU also includes at least five subcarriers other than the 7th subcarrier and the 20th subcarrier.
  • the 1st, 4th, 7th, 10th, 13th, 16th, 20th, 23rd, and 26th subcarriers of every 26 subcarriers in the first type DRU are non-data subcarriers.
  • the 7th subcarrier and the 20th subcarrier are pilot subcarriers with the same position in the first type DRU and the second type DRU
  • the 7 non-data subcarriers except the 7th subcarrier and the 20th subcarrier are interference elimination subcarriers.
  • the 7th subcarrier and the 20th subcarrier are also multiplexed as interference elimination subcarriers.
  • the 7 non-data subcarriers except the 7th subcarrier and the 20th subcarrier are also pilot subcarriers.
  • the 2nd, 5th, 7th, 10th, 13th, 18th, 20th, and 23rd subcarriers of every 26 subcarriers in the first type DRU are non-data subcarriers.
  • the 7th subcarrier and the 20th subcarrier are pilot subcarriers with the same position in the first type DRU and the second type DRU
  • the 6 non-data subcarriers except the 7th subcarrier and the 20th subcarrier are interference elimination subcarriers.
  • the 7th subcarrier and the 20th subcarrier are also multiplexed as interference elimination subcarriers.
  • the 6 non-data subcarriers except the 7th subcarrier and the 20th subcarrier are also pilot subcarriers.
  • the 3rd, 6th, 7th, 9th, 12th, 15th, 18th, 20th, 21st, and 24th subcarriers of every 26 subcarriers in the first type DRU are non-data subcarriers.
  • the 7th subcarrier and the 20th subcarrier are pilot subcarriers with the same position in the first type DRU and the second type DRU
  • the 8 non-data subcarriers except the 7th subcarrier and the 20th subcarrier are interference elimination subcarriers.
  • the 7th subcarrier and the 20th subcarrier are also multiplexed as interference elimination subcarriers.
  • the 8 non-data subcarriers except the 7th subcarrier and the 20th subcarrier are also pilot subcarriers.
  • the positions of some non-data subcarriers in the first type DRU are the same as the positions of the pilot subcarriers in the second method of designing pilot subcarriers in the DRU described above. That is, every 26 subcarriers in the first type DRU include at least one pilot subcarrier in the same position as that in the second type DRU.
  • the first type DRU also includes at least one subcarrier other than the pilot subcarrier in the same position as that in the second type DRU.
  • the first type DRU also includes at least three subcarriers other than the pilot subcarrier in the same position as that in the second type DRU.
  • the first type DRU also includes at least five subcarriers other than the pilot subcarrier in the same position as that in the second type DRU.
  • each first-type DRU includes non-data subcarriers in the same position as the non-data subcarriers in the second-type DRU, such as the bold and underlined positions in the above table. For example, if the position of the non-data subcarrier in the second-type DRU corresponding to DRU1 is ⁇ -116, -102 ⁇ , then the first-type DRU corresponding to DRU1 also includes two non-data subcarriers at positions ⁇ -116, -102 ⁇ . In addition, the first-type DRU corresponding to DRU1 also includes non-data subcarriers at other positions, such as ⁇ -73, -39, 4, 40, 77, 113 ⁇ .
  • the positions of some non-data subcarriers in the first type DRU are the same as the positions of the pilot subcarriers in the third method of designing pilot subcarriers in the DRU described above. That is, every 26 subcarriers in the first type DRU include at least one pilot subcarrier in the same position as that in the second type DRU.
  • the first type DRU also includes at least one subcarrier other than the pilot subcarrier in the same position as that in the second type DRU.
  • the first type DRU also includes at least three subcarriers other than the pilot subcarrier in the same position as that in the second type DRU.
  • the first type DRU also includes at least five subcarriers other than the pilot subcarrier in the same position as that in the second type DRU.
  • Each of the first type DRUs includes non-data subcarriers in the same position as the non-data subcarriers in the second type DRU. As shown in the bold and underlined positions in the above table. For example, the positions of the non-data subcarriers in the second type DRU corresponding to DRU1 are ⁇ -76, -48, 22 ⁇ , and the first type DRU corresponding to DRU1 also includes three non-data subcarriers at positions ⁇ -76, -48, 22 ⁇ . In addition, the first type DRU corresponding to DRU1 also includes non-data subcarriers at other positions, such as ⁇ -103, -21, 58, 86, 113 ⁇ .
  • each first-type DRU includes non-data subcarriers in the same position as the non-data subcarriers in the second-type DRU, such as the bold and underlined positions in the above table. For example, if the position of the non-data subcarrier in the second-type DRU corresponding to DRU1 is ⁇ -116, 10 ⁇ , then the first-type DRU corresponding to DRU1 also includes two non-data subcarriers in the position ⁇ -116, 10 ⁇ . In addition, the first-type DRU corresponding to DRU1 also includes non-data subcarriers in other positions, such as ⁇ -85, -43, -21, 49, 77, 104 ⁇ .
  • 26-channel DRU1 to 26-channel DRU9 generates EDRU1 to EDRU9
  • 26-channel DRU10 to 26-way DRU18 is generated from EDRU10 to EDRU18
  • 26-way DRU1 to 26-way DRU9 is generated from EDRU1 to EDRU9
  • 26-way DRU10 to 26-way DRU18 is generated from EDRU10 to EDRU18
  • 26-way DRU19 to 26-way DRU28 is generated from EDRU19 to EDRU28.
  • 26-way DRU1 to 26-way DRU9 is generated from EDRU1 to EDRU9
  • 26-way DRU10 to 26-way DRU18 is generated from EDRU10 to EDRU18
  • 26-way DRU19 to 26-way DRU28 is generated from EDRU19 to EDRU28
  • 26-way DRU29 to 26-way DRU36 is generated from EDRU29 to EDRU36.
  • the same operation is performed on the 52-channel DRU and 106-channel DRU to obtain the corresponding 52-channel EDRU and 106-channel EDRU.
  • the same operations are performed on the 52-channel DRU, 106-channel DRU, and 242-channel DRU to obtain the corresponding 52-channel EDRU, 106-channel EDRU, and 242-channel EDRU.
  • the same operations are performed on the 52-channel DRU, 106-channel DRU, 242-channel DRU, and 484-channel DRU to obtain the corresponding 52-channel EDRU, 106-channel EDRU, 242-channel EDRU, and 484-channel EDRU.
  • the method provided in this embodiment since the positions of some non-data subcarriers in the first type DRU are the same as the positions of all non-data subcarriers in the second type DRU, that is, the positions of all non-data subcarriers in the second type DRU are reused in the first type DRU, it is possible to reduce the signaling used to indicate all non-data subcarriers in the first type DRU, and instead the signaling used to indicate all non-data subcarriers in the second DRU can be multiplexed, thereby reducing the signaling overhead.
  • FIG12 shows a flow chart of a method for sending a wireless signal provided by an exemplary embodiment of the present application.
  • the method is executed by a first device, which is a signal sender and may be an AP or a STA.
  • the method includes:
  • Step 320 Indicate whether to use the first type DRU based on the target indication information.
  • the first device receives target indication information.
  • the target indication information is used to indicate whether the first device uses a first type of DRU.
  • the target indication information includes at least one of the following fields:
  • the first field is used to indicate whether the first type DRU is used to transmit data in the uplink direction.
  • the first field is used to indicate whether the first type DRU is used to transmit data in the uplink direction based on triggering.
  • the signal receiver detects a certain degree of interference, in order to improve reliability, it is necessary to require the signal sender at a longer distance to use the first type DRU for uplink transmission.
  • the signal receiver needs to indicate in the trigger frame, mainly to distinguish between RU and/or first type DRU and/or second type DRU.
  • the first field is a field in a base trigger frame.
  • the first field includes at least one of the following:
  • whether to use the first type DRU is indicated based on a reserved bit in the first field.
  • whether to use the first type DRU is indicated based on a reserved bit in the HE variant user information (HE variant User Info) field and/or the EHT variant user information (EHT variant User Info) and/or the Ultra High Reliability (UHR) variant user information (UHR variant User Info) in the basic trigger frame.
  • one reserved bit can be used for indication.
  • the value of the reserved bit is a first value, it indicates that the RU is used, or that the first type DRU is not used; when the value of the reserved bit is a second value, it indicates that the first type DRU is used.
  • at least two reserved bits can be used for joint indication.
  • the value of at least two reserved bits when the value of at least two reserved bits is a first value, it indicates that the RU is used; when the value of at least two reserved bits is a second value, it indicates that the first type DRU is used; when the value of at least two reserved bits is a third value, it indicates that the second type DRU is used.
  • the reserved bits in the Common Info field and the Special User Info field in the basic trigger frame indicate whether the first type DRU is used.
  • the first field includes m bits, and each of the m bits corresponds to a subchannel.
  • the value of the i-th bit in the m bits is the first value, it is used to indicate that the subchannel associated with the i-th bit uses the first type DRU; when the value of the i-th bit in the m bits is the second value, it is used to indicate that the subchannel associated with the i-th bit does not use the first type DRU.
  • the value of m is a positive integer
  • the value of i is a positive integer less than or equal to m.
  • the basic trigger frame includes at least one of a media access controller (MAC) frame header and a MAC frame body.
  • the MAC frame header includes at least one of a frame control field, a duration field, a frame receiver address field, and a frame sender address field.
  • the MAC frame body includes at least one of a general information field, a user information list field, a padding field, and a frame check field.
  • the user information list field in the MAC frame body includes the special user information field, the user information 1 field to the user information N field, and the user information 1 field. At least one of.
  • the special user information field in the user information list field in the MAC frame body includes at least one of the application key identifier (Application Key Identifier, AID) field, the physical layer version flag field, the uplink bandwidth extension field, the EHT spatial multiplexing 1 field, the EHT spatial multiplexing 2 field, the universal signal (U-SIG) ignore and check field, the reserved field, and the trigger frame subclass related user information field.
  • the trigger frame subclass related user information field in the special user information field in the user information list field in the MAC frame body includes at least the reserved field.
  • the user information 1 field in the user information list field in the MAC frame body includes at least one of the AID field, the resource unit allocation field, the uplink forward error correction code (Forward Erro Correction, FEC) coding type field, the uplink EHT modulation and coding category field, the reserved field, the spatial stream allocation or random access resource unit information field, the uplink target received power field, the primary and secondary fields, and the trigger frame subclass related user information field.
  • FEC Forward Erro Correction
  • the trigger frame subclass-related user information field in the user information 1 field in the user information list field in the MAC frame body includes at least one of the multi-user MAC protocol data unit (MAC Protocol Data Unit, MPDU) time slot factor field, the traffic identifier (Traffic Identifier, TID) aggregation limit field, the reserved field, and the preferred access category field.
  • MPDU multi-user MAC protocol data unit
  • TID Traffic Identifier
  • the general information field in the MAC frame body includes at least one of a trigger frame subtype field, an uplink length field, whether there are more trigger frames field, whether channel measurement is required field, an uplink bandwidth field, a guard interval (GI) and a HE-LTF type/or a transmission opportunity sharing mode field, a reserved field, a HE-LTF symbol number and an intermediate code period field, a low-density parity check code (LDPC) additional symbol segmentation field, an AP transmit power field, a Pre-FEC filling factor field, an uplink spatial multiplexing field, a special user information field identification field, and an EHT reserved field.
  • a trigger frame subtype field includes at least one of a trigger frame subtype field, an uplink length field, whether there are more trigger frames field, whether channel measurement is required field, an uplink bandwidth field, a guard interval (GI) and a HE-LTF type/or a transmission opportunity sharing mode field, a reserved field, a HE-LTF symbol number and an intermediate code
  • the second field is used to indicate whether the first type DRU is used to transmit data in the uplink direction.
  • the second field is used to indicate whether the first type DRU is used to transmit data in the uplink direction based on non-triggering. In the uplink transmission based on non-triggering, when the signal sender at a longer distance learns that the signal receiver is subject to a certain degree of interference, in order to improve reliability, the signal sender can use the first type DRU for uplink transmission.
  • the second field includes at least one of the following fields:
  • Multi User PPDU Physical layer protocol data unit
  • whether a first type DRU is used to transmit data in the uplink direction is indicated in the HE-SIG-B or EHT-SIG or UHR-SIG field in the uplink MU PPDU.
  • whether a first type DRU is used to transmit data in the uplink direction is indicated in the HE-SIG-A field of the uplink HE SU PPDU.
  • whether the first type of DRU is used to transmit data in the uplink direction is indicated in the first newly added field.
  • the third field is used to indicate whether to use the first type DRU to transmit data in the downlink direction.
  • the signal sender can use the second type DRU for transmission.
  • the signal sender learns that the signal receiver at a longer distance is subject to a certain degree of interference, in order to improve reliability, the signal sender can use the first type DRU for downlink transmission.
  • the third field includes at least one of the following fields:
  • a Common field in a UHR signal (UHR-SIG) field in a UHR MU PPDU for single-user transmission and/or a Disregard field and/or a Reserved field in a User Specific field indicate whether a first type DRU is used to transmit data in a downlink direction.
  • one bit in the above field may be used for indication.
  • the value of the bit is a first value, it indicates that an RU is used, or that a first type DRU is not used; when the value of the bit is a second value, it indicates that a first type DRU is used.
  • at least two bits in the above field may be used for joint indication.
  • the value of at least two bits when the value of at least two bits is a first value, it indicates that an RU is used; when the value of at least two bits is a second value, it indicates that a first type DRU is used; when the value of at least two bits is a third value, it indicates that a second type DRU is used.
  • the UHR MU PPDU includes at least one of a Non-HT short training sequence field, a Non-HT long training sequence field, a Non-HT signal field, a repeated Non-HT signal field, a unified signal field, a UHR signal field, a UHR short training sequence field, a UHR long training sequence field, a packet extension field, and a data field.
  • the UHR signal field includes a content channel. The content channel is replicated and transmitted on 20 MHz.
  • the content channel includes at least one of a general field and a user-specific field.
  • the general field also includes a content channel.
  • the unified signal (U-SIG) overflow field and the non-orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access) OFDMA user number field can be divided into two fields: the unified signal (U-SIG) overflow field and the non-OFDMA user number field.
  • the unified signal (U-SIG) overflow field also includes the spatial multiplexing field, the protection interval and LIF size field, the EHT-LTF symbol number field, the LDPC additional symbol fragment field, the filling factor field before FEC, the packet extension deambiguation field, and at least one of the ignored fields.
  • the user-specific field includes the user field, the check code and the tail field, and the padding field.
  • the user field, the check code and the tail field include at least one of the site identifier field, the modulation and coding order field, the reserved field, the spatial stream number field, the beam training field, the coding field, the check code field, and the tail field. It is worth noting that the above-mentioned fields are only used as an exemplary description in the embodiment of the present application. In other possible embodiments, the order, quantity and upper and lower attribution relationship between the above-mentioned fields may also be other situations, and the embodiment of the present application does not limit this.
  • whether a first type DRU is used to transmit data in the downlink direction is indicated in a general field in the UHR-SIG field and/or an ignored field and/or a reserved field in the user-specific field in a 20MHz or 40MHz or 80MHz UHR MU PPDU for orthogonal frequency division multiple access transmission.
  • at least one bit in the four ignored fields is used to indicate whether the PPDU uses a first type DRU on a 20MHz corresponding to the content channel.
  • a reserved field in the user-specific field is used to indicate whether the portion of the PPDU corresponding to the signal sender uses a first type DRU.
  • at least two fields are used to indicate jointly. For example, the ignored field and the reserved field in the user-specific field are used to jointly indicate whether the first type DRU is used.
  • the UHR MU PPDU includes at least one of a Non-HT short training sequence field, a Non-HT long training sequence field, a Non-HT signal field, a repeated Non-HT signal field, a unified signal field, a UHR signal field, a UHR short training sequence field, a UHR long training sequence field, a packet extension field, and a data field.
  • the UHR signal field includes two content channels.
  • the content channel includes at least one of a general field and a user-specific field.
  • the general field includes at least one of a unified signal (U-SIG) overflow field, a resource unit allocation field, a check field, and a tail field.
  • U-SIG unified signal
  • the unified signal (U-SIG) overflow field includes at least one of a spatial multiplexing field, a guard interval and a LIF size field, an EHT-LTF symbol number field, an LDPC additional symbol fragment field, a filling factor field before FEC, a packet extension deambiguation field, and an ignore field.
  • the user-specific field includes a user field, a check code, a tail field, and a padding field.
  • the user field, the check code and the tail field include at least one of the site identifier field, the modulation and coding order field, the reserved field, the spatial stream number field, the beam training field and the coding field. It is worth noting that the above fields are only used as an example in the embodiment of the present application. In other possible embodiments, the order, quantity and upper and lower attribution relationship between the above fields may also be other situations, which are not limited in the embodiment of the present application.
  • the reserved field described in the embodiment of the present application is a description method for the field in the current communication protocol.
  • the name of the reserved field may also be other situations, which is not limited by the embodiment of the present application.
  • the reserved field may also be divided into a field for indicating whether the first type of DRU is used and a reserved field.
  • the ignored field described in the embodiment of the present application is a description method for the field in the current communication protocol. After the ignored field is used to indicate whether the first type of DRU is used, the name of the ignored field may also be other situations, which is not limited in the embodiment of the present application. In addition, in the case where only some bits in the ignored field need to be used to indicate whether the first type of DRU is used, the ignored field may also be divided into a field for indicating whether the first type of DRU is used and an ignored field.
  • the value of the first bit in the ignore field is used to indicate whether the first type DRU is used.
  • the first bit in the Ignore field of content channel 1 is used to indicate whether a first type DRU is used on the lower 20 MHz
  • the first bit in the Ignore field of content channel 2 is used to indicate whether a first type DRU is used on the upper 20 MHz.
  • the 20MHz channels from low to high frequencies are recorded as L20-1, L20-2, L20-3, and L20-4, respectively.
  • the first bit in the ignore field of content channel 1 is used to indicate whether the first type DRU is used on L20-1.
  • the second bit in the ignore field of content channel 1 is used to indicate whether the first type of DRU is used on L20-3
  • the third bit in the ignore field of content channel 1 is used to indicate whether the first type of DRU is used on L20-5
  • the fourth bit in the ignore field of content channel 1 is used to indicate whether the first type of DRU is used on L20-7
  • the first bit in the ignore field of content channel 2 is used to indicate whether the first type of DRU is used on L20-2
  • the second bit in the ignore field of content channel 2 is used to indicate whether the first type of DRU is used on L20-4
  • the third bit in the ignore field of content channel 2 is used to indicate whether the first type of DRU is used on L20-6
  • the fourth bit in the ignore field of content channel 1 is used to indicate whether the first type of DRU is used on L20-8.
  • an ignore field and/or a reserved field in a common field and/or a user-specific field in the EHT-SIG field in a 160 MHz UHR MU PPDU for orthogonal frequency division multiple access transmission may indicate whether a first type DRU is used.
  • the general field and/or the ignored field and/or the reserved field in the user-specific field in the EHT-SIG field in the 320MHz UHR MU PPDU for OFDMA transmission may indicate whether the first type DRU is used.
  • the above fields are not sufficient to indicate all 20MHz sub-channels in the entire 320MHz, so it is possible to limit the indication of whether the first type DRU is used only on the primary 160MHz or only on the secondary 160MHz, or add 8 bits to the general field in the EHT-SIG field to indicate whether the first type DRU is used on the corresponding 20MHz sub-channels from L20-9 to L20-16.
  • the method provided in this embodiment indicates whether to use the first type of DRU to transmit the wireless signal through target indication information, so that the signal sender can determine whether to use the first type of DRU when sending the wireless signal based on affirmative signaling, thereby avoiding confusion when the signal sender uses the first type of DRU and the second type of DRU.
  • step 320 can be implemented as a separate embodiment, or the above step 320 can be implemented as a combined embodiment with the above step 220. Wherein, in the case where the above step 320 can be implemented as a combined embodiment with the above step 220, generally, step 320 is performed before step 220.
  • FIG17 shows a flow chart of a method for receiving a wireless signal provided by an exemplary embodiment of the present application.
  • the method is performed by a second device, which is a signal receiver and can be an AP or a STA.
  • the method includes:
  • Step 420 Receive a wireless signal sent using a first type DRU.
  • the first type DRU includes data subcarriers and non-data subcarriers, wherein the data subcarriers are used to transmit data signals, and the non-data subcarriers are subcarriers other than the data subcarriers in all subcarriers.
  • the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers. In some embodiments, all non-data subcarriers are pilot subcarriers. In some embodiments, all non-data subcarriers are interference elimination subcarriers. In some embodiments, part of the non-data subcarriers are pilot subcarriers and the other part are interference elimination subcarriers.
  • the pilot subcarriers can be multiplexed as interference elimination subcarriers or the interference elimination subcarriers can be multiplexed as pilot subcarriers.
  • the pilot subcarriers and the interference elimination subcarriers can be multiplexed with each other, it is equivalent to that all non-data subcarriers are pilot subcarriers or all non-data subcarriers are interference elimination subcarriers.
  • the non-data subcarriers also include empty subcarriers.
  • the implementation method of the first type DRU is detailed in the above step 220.
  • the second device sends target indication information.
  • the target indication information is used to indicate whether the first device uses the first type DRU.
  • the target indication information includes at least one of the following fields:
  • the implementation method of the target indication information is detailed in the above step 320.
  • FIG18 shows a flow chart of a method for sending a wireless signal provided by an exemplary embodiment of the present application.
  • the method is executed by a first device, which is a signal sender and may be an AP or a STA.
  • the method includes:
  • Step 520 Use the DRU group to send a wireless signal.
  • the DRU group includes adjacent first-type DRUs and second-type DRUs.
  • the DRU group includes 26-way DRU1 and 26-way DRU2, wherein 26-way DRU1 is the first-type DRU and 26-way DRU2 is the second-type DRU.
  • all or part of the data subcarriers in the first type DRU are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group exceeds thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference cancellation subcarriers.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than two-thirteenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than one-fifth.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than three-tenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers should also be less than a quantity threshold.
  • the quantity threshold is predefined or dynamically adjusted based on the demand for wireless signal transmission.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers should also be less than a quantity threshold.
  • the ratio of the total number is less than one half.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is less than four fifths.
  • the implementation method of the first type of DRU in the DRU group is detailed in the above step 220.
  • the first device receives target indication information.
  • the target indication information is used to indicate whether the first device uses a DRU group.
  • the target indication information is used to indicate whether the first device uses a first type of DRU.
  • the target indication information includes at least one of the following fields:
  • the implementation method of the target indication information is detailed in the above step 320.
  • the method further includes:
  • Step 620 Indicate the first type DRU and the second type DRU based on the resource unit allocation field value.
  • the first device receives indication information for indicating the first type DRU and the second type DRU in the DRU group.
  • the first type DRU and the second type DRU are indicated based on the resource unit allocation field value in the user information field in the basic trigger frame. Exemplary, as shown in the following Table 13:
  • the resource unit allocation field value used to indicate the 26-way RU2 is also used to indicate the 52-way DRU2 composed of the 26-way DRU2 and the 26-way DRU3, wherein the 26-way DRU2 is the first type DRU and the 26-way DRU3 is the second type DRU; or wherein the 26-way DRU2 is the second type DRU and the 26-way DRU3 is the first type DRU.
  • 26-way RU10 to 26-way RU18 correspond to 52-way DRU10 to 52-way DRU18 respectively, and are sequentially composed of 26-way DRU10 and 26-way DRU11, 26-way DRU11 and 26-way DRU12, and so on.
  • 26-way RU19 to 26-way RU27 correspond to 52-way DRU19 to 52-way DRU27 respectively, and are sequentially composed of 26-way DRU19 and 26-way DRU20, 26-way DRU20 and 26-way DRU21, and so on.
  • 26-way RU28 to 26-way RU36 correspond to 52-way DRU28 to 52-way DRU36 respectively, and are sequentially composed of 26-way DRU28 and 26-way DRU29, 26-way DRU29 and 26-way DRU30, and so on.
  • RU1 with 52 connections to RU4 with 26 connections correspond to DRU1 with 106 connections to DRU4 with 106 connections respectively.
  • 52-way RU5 to 26-way RU8 correspond to 106-way DRU5 to 106-way DRU8 respectively.
  • 52-way RU9 to 26-way RU12 correspond to 106-way DRU9 to 106-way DRU12 respectively.
  • 52-way RU13 to 26-way RU16 correspond to 106-way DRU13 to 106-way DRU16 respectively.
  • 106-way RU1 to 106-way RU4 correspond to 242-way DRU1 to 242-way DRU4 respectively.
  • 106-way RU5 to 106-way RU8 correspond to 242-way DRU5 to 242-way DRU8 respectively.
  • 242 through RU1 to 242 through RU4 correspond to 484 through DRU1 to 484 through DRU4 respectively.
  • the above-mentioned 52-channel DRU and 106-channel DRU can be used for transmission of 20 MHz and/or 40 MHz and/or 80 MHz and/or 160 MHz and/or 320 MHz PPDU.
  • the above-mentioned 242-way DRU can be used for transmission of 40MHz and/or 80MHz and/or 160MHz and/or 320MHz PPDU.
  • the above-mentioned 484-channel DRU can be used for transmission of 80MHz and/or 160MHz and/or 320MHz PPDU.
  • the resource unit allocation field value in the user information field in the basic trigger frame indicates the first type DRU and the second type DRU. For example, as shown in the following Table 15:
  • the resource unit allocation field value used to indicate the 52-way RU1 is also used to indicate the 52-way DRU1 composed of the 26-way DRU1 and the 26-way DRU2.
  • the 26-way DRU1 is a first type DRU and the 26-way DRU2 is a second type DRU; or the 26-way DRU1 is a second type DRU and the 26-way DRU2 is a first type DRU.
  • the resource unit allocation field value in the user information field in the basic trigger frame indicates the first type DRU and the second type DRU. For example, as shown in the following Table 16:
  • the resource unit allocation field value used to indicate the 52-way RU1 is also used to indicate the 52-way DRU1 composed of the 26-way DRU2 and the 26-way DRU3.
  • the 26-way DRU1 is a first type DRU and the 26-way DRU2 is a second type DRU; or the 26-way DRU1 is a second type DRU and the 26-way DRU2 is a first type DRU.
  • step 620 can be implemented as a separate embodiment, or the above step 620 can be implemented as a combined embodiment with the above step 520. Wherein, when the above step 620 can be implemented as a combined embodiment with the above step 520, generally, step 620 is performed before step 520.
  • FIG20 shows a flow chart of a method for receiving a wireless signal provided by an exemplary embodiment of the present application.
  • the method is performed by a second device, which is a signal receiver and can be an AP or a STA.
  • the method includes:
  • Step 720 Receive a wireless signal sent using the DRU group.
  • the DRU group includes adjacent first-type DRUs and second-type DRUs.
  • the DRU group includes 26-way DRU1 and 26-way DRU2, wherein 26-way DRU1 is the first-type DRU and 26-way DRU2 is the second-type DRU.
  • all or part of the data subcarriers in the first type DRU are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group exceeds thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference cancellation subcarriers.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than two-thirteenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than one-fifth.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than three-tenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers should also be less than a quantity threshold.
  • the quantity threshold is predefined or dynamically adjusted based on the demand for wireless signal transmission.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is less than one-half.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is less than four-fifths.
  • the implementation method of the first type of DRU in the DRU group is detailed in the above step 220.
  • the implementation method of the target indication information is detailed in the above step 320.
  • the second device further sends indication information for indicating the first type DRU and the second type DRU in the DRU group.
  • the first type DRU and the second type DRU are indicated based on the resource unit allocation field value. For details of the resource unit allocation field value, see the above step 620.
  • the above step 620 may also be combined with at least one of the above step 220 or the above step 320 or the above step 420 or the above step 720 to be implemented as a new embodiment.
  • FIG21 shows a block diagram of a wireless signal transmitting device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the sending module 2110 is configured to send a wireless signal using a first type DRU.
  • the first type DRU includes data subcarriers and non-data subcarriers, wherein the data subcarriers are used to transmit data signals, and the non-data subcarriers are subcarriers other than the data subcarriers in all subcarriers.
  • the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers. In some embodiments, all non-data subcarriers are pilot subcarriers. In some embodiments, all non-data subcarriers are interference elimination subcarriers. In some embodiments, part of the non-data subcarriers are pilot subcarriers and the other part are interference elimination subcarriers.
  • the pilot subcarriers can be multiplexed as interference elimination subcarriers or the interference elimination subcarriers can be multiplexed as pilot subcarriers.
  • the pilot subcarriers and the interference elimination subcarriers can be multiplexed with each other, it is equivalent to that all non-data subcarriers are pilot subcarriers or all non-data subcarriers are interference elimination subcarriers.
  • the non-data subcarriers also include empty subcarriers.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers exceeds 13. Exemplarily, assuming that the first type DRU is a 26-channel DRU, the number of non-data subcarriers in the first type DRU is greater than 2.
  • a ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is equal to or greater than two-thirteenth.
  • a ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is equal to or greater than one-fifth.
  • a ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is equal to or greater than three tenths.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers should also be less than a quantity threshold.
  • the quantity threshold is predefined or dynamically adjusted based on the demand for wireless signal transmission.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is less than one-half.
  • the ratio of the number of non-data subcarriers in the first type DRU to the total number of data subcarriers and non-data subcarriers is less than four-fifths.
  • the positions of all non-data subcarriers in the first type DRU are uniformly distributed.
  • the uniform distribution includes at least one of the following:
  • the positions of all non-data subcarriers in the first type DRU are evenly distributed in every 26 subcarriers.
  • the first type DRU includes 13 non-data subcarriers, and the position of each non-data subcarrier is an even number of the 26 subcarriers or the position of each non-data subcarrier is an odd number of the 26 subcarriers.
  • positions of all non-data subcarriers in the first type DRU are evenly distributed in a bandwidth corresponding to one first type DRU.
  • the locations of all non-data subcarriers in the first type DRU are uniformly distributed in the bandwidth of one subchannel.
  • the variance of the interval between two adjacent non-data subcarriers in the first type DRU is less than a threshold.
  • the threshold is predefined or dynamically adjusted according to signal transmission conditions. That is, the positions of all non-data subcarriers in the first type DRU may not be completely evenly distributed, but are as evenly distributed as possible.
  • the first type of DRU includes the following two possible designs:
  • Design 1 The positions of all non-data subcarriers in the first type DRU are different from the position of at least one non-data subcarrier in the second type DRU;
  • Design 2 The positions of some non-data subcarriers in the first type DRU are the same as the positions of all non-data subcarriers in the second type DRU.
  • the ratio of the number of non-data subcarriers in the second type DRU to the total number of data subcarriers and non-data subcarriers is thirteenth.
  • the second type DRU can be understood as a traditional type DRU, that is, it can be understood as a DRU that has been proposed in the above-mentioned related proposals.
  • the first type DRU has a larger proportion of non-data subcarriers in all subcarriers than the second type DRU.
  • the apparatus further comprises:
  • the receiving module 2120 is configured to receive target indication information.
  • the target indication information is used to indicate whether the first device uses a first type of DRU.
  • the implementation method of the target indication information refers to the above step 320.
  • the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions.
  • the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.
  • FIG22 shows a block diagram of a wireless signal receiving device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the receiving module 2210 is used to receive a wireless signal sent by a first type DRU.
  • the first type DRU includes data subcarriers and non-data subcarriers, wherein the data subcarriers are used to transmit data signals, and the non-data subcarriers are subcarriers other than the data subcarriers in all subcarriers.
  • the non-data subcarriers include at least one of pilot subcarriers and interference elimination subcarriers. In some embodiments, all non-data subcarriers are pilot subcarriers. In some embodiments, all non-data subcarriers are interference elimination subcarriers. In some embodiments, part of the non-data subcarriers are pilot subcarriers and the other part are interference elimination subcarriers.
  • the pilot subcarriers can be multiplexed as interference elimination subcarriers or the interference elimination subcarriers can be multiplexed as pilot subcarriers.
  • the pilot subcarriers and the interference elimination subcarriers can be multiplexed with each other, it is equivalent to that all non-data subcarriers are pilot subcarriers or all non-data subcarriers are interference elimination subcarriers.
  • the non-data subcarriers also include empty subcarriers.
  • the implementation method of the first type DRU is detailed in the above step 220.
  • the apparatus further comprises:
  • the sending module 2220 is configured to send target indication information.
  • the target indication information is used to indicate whether the first device uses a first type of DRU.
  • the implementation method of the target indication information is detailed in the above step 320.
  • the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions.
  • the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.
  • FIG23 shows a flow chart of a wireless signal transmitting device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the sending module 2310 is used to send a wireless signal using the DRU group.
  • the DRU group includes adjacent first-type DRUs and second-type DRUs.
  • the DRU group includes 26-way DRU1 and 26-way DRU2, wherein 26-way DRU1 is the first-type DRU and 26-way DRU2 is the second-type DRU.
  • all or part of the data subcarriers in the first type DRU are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group exceeds thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference cancellation subcarriers.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than two-thirteenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than one-fifth.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than three-tenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers should also be less than a quantity threshold.
  • the quantity threshold is predefined or dynamically adjusted based on the demand for wireless signal transmission.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is less than one-half.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is less than four-fifths.
  • the implementation method of the first type of DRU in the DRU group is detailed in the above step 220.
  • the above apparatus further comprises:
  • the receiving module 2320 is configured to receive target indication information.
  • the target indication information is used to indicate whether the first device uses a DRU group. Alternatively, the target indication information is used to indicate whether the first device uses a first type of DRU.
  • the implementation method of the target indication information is detailed in the above step 320.
  • the receiving module 2320 is further used to receive a resource unit allocation field value, where the resource unit allocation field value is used to indicate a first type DRU and a second type DRU.
  • the implementation method of the resource unit allocation field value is detailed in the above step 620.
  • the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions.
  • the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.
  • FIG24 shows a flow chart of a wireless signal receiving device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the receiving module 2410 is used to receive a wireless signal sent by the DRU group.
  • the DRU group includes adjacent first-type DRUs and second-type DRUs.
  • the DRU group includes 26-way DRU1 and 26-way DRU2, wherein 26-way DRU1 is the first-type DRU and 26-way DRU2 is the second-type DRU.
  • all or part of the data subcarriers in the first type DRU are used as non-data subcarriers of the DRU group, the ratio of the number of non-data subcarriers of the DRU group to the number of all subcarriers of the DRU group exceeds thirteenth, and the non-data subcarriers include at least one of pilot subcarriers and interference cancellation subcarriers.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than two-thirteenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than one-fifth.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is equal to or greater than three-tenths.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers should also be less than a quantity threshold.
  • the quantity threshold is predefined or dynamically adjusted based on the demand for wireless signal transmission.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is less than one-half.
  • the ratio of the number of non-data subcarriers in the DRU group to the total number of data subcarriers and non-data subcarriers is less than four-fifths.
  • the implementation method of the first type of DRU in the DRU group is detailed in the above step 220.
  • the apparatus further comprises:
  • the sending module 2420 is configured to send target indication information.
  • the target indication information is used to indicate whether the first device uses the DRU group. Alternatively, the target indication information is used to indicate whether the first device uses the first type of DRU.
  • the implementation method of the target indication information is detailed in the above step 320.
  • the sending module 2420 is further used to send indication information for indicating the first type DRU and the second type DRU in the DRU group.
  • the first type DRU and the second type DRU are indicated based on the resource unit allocation field value. For details of the resource unit allocation field value, see the above step 620.
  • the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions.
  • the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.
  • FIG25 is a schematic diagram showing the structure of a communication device provided by an embodiment of the present application.
  • the communication device may include: a processor 2501 , a receiver 2502 , a transmitter 2503 , a memory 2504 and a bus 2505 .
  • the processor 2501 includes one or more processing cores.
  • the processor 2501 executes various functional applications and information processing by running software programs and modules.
  • the receiver 2502 and the transmitter 2503 may be implemented as a transceiver 2506, which may be a communication chip.
  • the memory 2504 is connected to the processor 2501 via a bus 2505.
  • the memory 2504 may be used to store a computer program, and the processor 2501 is used to execute the computer program to implement the various steps performed by the first device and/or the second device in the above method embodiment.
  • memory 2504 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and volatile or non-volatile storage devices include but are not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other solid-state storage technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc) or other optical storage, tape cassettes, magnetic tapes, disk storage or other magnetic storage devices.
  • RAM Random-Access Memory
  • ROM Read-Only Memory
  • EPROM Erasable Programmable Read-Only Memory
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • flash memory or other solid-state storage technology CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc) or other optical storage, tape cassettes, magnetic tapes, disk storage or other magnetic storage devices.
  • the embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used in a processor of a communication device to implement the various steps in the above-mentioned wireless signal sending method and/or receiving method.
  • the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc.
  • the random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).
  • An embodiment of the present application also provides a chip, which includes a programmable logic circuit and/or program instructions.
  • the chip runs on a terminal or a network device, it is used to implement each step in the above-mentioned wireless signal sending method and/or receiving method.
  • An embodiment of the present application also provides a computer program product or a computer program, which includes computer instructions, and the computer instructions are stored in a computer-readable storage medium.
  • the processor of a terminal or a network device reads and executes the computer instructions from the computer-readable storage medium to implement each step in the above-mentioned wireless signal sending method and/or receiving method.
  • Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another.
  • the storage medium can be any available medium that a general or special-purpose computer can access.

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Abstract

La présente demande se rapporte au domaine des communications, et divulgue un procédé et un appareil d'envoi de signal sans fil, un procédé et un appareil de réception de signal sans fil, un système et un support. Le procédé d'envoi de signal sans fil consiste à : utiliser une DRU de premier type pour envoyer un signal sans fil, la DRU de premier type comprenant des sous-porteuses de données et des sous-porteuses sans données, le rapport du nombre de sous-porteuses sans données au nombre total des sous-porteuses de données et des sous-porteuses sans données dépassant un treizième, et les sous-porteuses sans données comprenant une sous-porteuse pilote et/ou une sous-porteuse d'annulation d'interférence. De cette manière, la distance de transmission de signaux sans fil peut être augmentée, et la fiabilité de transmission peut également être améliorée.
PCT/CN2023/136482 2023-12-05 2023-12-05 Procédé et appareil d'envoi de signal sans fil, procédé et appareil de réception de signal sans fil, dispositif et support Pending WO2025118146A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101035106A (zh) * 2007-04-02 2007-09-12 重庆邮电大学 利用前导符号和非均匀导频进行联合信道估计的方法
CN102158441A (zh) * 2011-04-12 2011-08-17 无锡物联网产业研究院 一种信道估计方法和装置
CN105812111A (zh) * 2016-03-03 2016-07-27 电子科技大学 一种不完美信道估计下sm-ofdm系统的最优功率分配方法
WO2016137201A1 (fr) * 2015-02-25 2016-09-01 엘지전자 주식회사 Procédé et dispositif de transmission de signal en utilisant une unité de ressource incluant une pluralité de sous-porteuses
CN111417183A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种导频功率提升方法、网络设备和存储介质
WO2022022249A1 (fr) * 2020-07-30 2022-02-03 华为技术有限公司 Procédé de planification de ressources et appareil associé

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101035106A (zh) * 2007-04-02 2007-09-12 重庆邮电大学 利用前导符号和非均匀导频进行联合信道估计的方法
CN102158441A (zh) * 2011-04-12 2011-08-17 无锡物联网产业研究院 一种信道估计方法和装置
WO2016137201A1 (fr) * 2015-02-25 2016-09-01 엘지전자 주식회사 Procédé et dispositif de transmission de signal en utilisant une unité de ressource incluant une pluralité de sous-porteuses
CN105812111A (zh) * 2016-03-03 2016-07-27 电子科技大学 一种不完美信道估计下sm-ofdm系统的最优功率分配方法
CN111417183A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种导频功率提升方法、网络设备和存储介质
WO2022022249A1 (fr) * 2020-07-30 2022-02-03 华为技术有限公司 Procédé de planification de ressources et appareil associé

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