Power configuration method, device and equipment

Abstract

Provided are a power configuration method, apparatus and device, the method comprising: an access point device indicates a target parameter to a station device, the target parameter being used for determining the transmission power of the station device for sending a physical layer protocol data unit (PPDU) using a distributed tone resource unit (DRU). Therefore, the access point device can realize power control of sending the PPDU by using the DRU for the station device through the target parameter.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a power configuration method, apparatus, and device. Background Technology

[0002] In some scenarios, to overcome power spectral density limitations and achieve coverage extension and range-versus-rate (RvR) enhancement, Distributed Tone Resource Units (DRUs) are introduced. The main idea of ​​DRUs is to allocate the tone of a small-size Resource Unit (RU) to a large bandwidth, thus making the tone discontinuous for each field, allowing each tone to be transmitted at higher power. In this case, how to implement power control of the Physical Layer Protocol Data Units (PPDUs) on the DRU is a problem that urgently needs to be solved. Summary of the Invention

[0003] This application provides a power configuration method, apparatus, and device that enables power control of PPDUs on a DRU.

[0004] Firstly, a power configuration method is provided, including:

[0005] The access point device indicates target parameters to the site device, the target parameters being used to determine the transmit power of the site device when transmitting Physical Layer Protocol Data Units (PPDUs) using a Distributed Tone Resource Unit (DRU).

[0006] Secondly, a power configuration method is provided, including:

[0007] The site equipment obtains the target parameters from the access point equipment;

[0008] The site equipment determines the transmit power used by the site equipment to transmit Physical Layer Protocol Data Units (PPDUs) using the Distributed Tone Resource Unit (DRU) based on the target parameters.

[0009] Thirdly, a wireless communication device is provided, comprising:

[0010] The transmitting module is used to indicate target parameters to the site equipment, the target parameters being used to determine the transmit power of the site equipment when transmitting Physical Layer Protocol Data Units (PPDUs) using a Distributed Tone Resource Unit (DRU).

[0011] Fourthly, a wireless communication device is provided, comprising:

[0012] The receiving module is used to obtain target parameters from the access point device;

[0013] The processing module is used to determine the transmit power used by the site equipment to transmit Physical Layer Protocol Data Units (PPDUs) using a Distributed Tone Resource Unit (DRU) based on the target parameters.

[0014] Fifthly, an access point device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods described in the first aspect or its various implementations.

[0015] In a sixth aspect, a site device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the methods in the second aspect or its implementations described above.

[0016] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations. Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is installed to perform the methods of any one of the first to second aspects or their respective implementations.

[0017] Eighthly, a readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0018] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0019] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0020] Through the above technical solution, the access point device can indicate the target parameters for transmitting PPDU using DRU to the site device. The site device can determine the transmission power for transmitting PPDU using DRU based on the target parameters, thereby enabling the access point device to control the power of the site device for transmitting PPDU using DRU through the target parameters. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a communication system applicable to embodiments of this application.

[0022] Figure 2 This is a schematic diagram of the format of an EHT variant User Info field.

[0023] Figure 3 This is a schematic diagram of the format of a common information field in a trigger frame.

[0024] Figure 4 This is a schematic diagram of a power configuration method provided in an embodiment of this application.

[0025] Figure 5 This is a schematic diagram of a wireless communication device provided in an embodiment of this application.

[0026] Figure 6 This is a schematic diagram of another wireless communication device provided in the embodiments of this application.

[0027] Figure 7 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0028] Figure 8 This is a schematic block diagram of a chip provided according to an embodiment of this application.

[0029] Figure 9 This is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0031] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Furthermore, the terms "first" and "second," etc., used herein are used only to distinguish different objects and not to describe a particular order.

[0032] It should be noted that, in the embodiments of this application, "at least one item" refers to one item or more items.

[0033] "Multiple items" refers to two or more items, and "at least two items" refers to two or more items.

[0034] "At least one of the following" or similar expressions may refer to any combination of these items. For example, at least one of a, b, or c may mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0035] It should be noted that in the embodiments of this application, "and / or" indicates that the connected objects can have three relationships. For example, "A and / or B" can represent three scenarios: only A exists, only B exists, and both A and B exist simultaneously. The character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0036] It should be understood that the "instruction" mentioned in the embodiments of this application can be a direct instruction or an indirect instruction. For example, A instructing B can mean that A directly instructs B, such as B being obtainable through A; or it can mean that A indirectly instructs B, such as A instructing C, where B is obtainable through C, for example, B and C are related.

[0037] The technical solutions provided in this application can be applied to wireless local area network (WLAN) systems, such as WiFi protocols. These WiFi protocols may include, but are not limited to, the 802.11 series protocols, such as 802.11a, 802.11ax, 802.11ac, 802.11b, 802.11be, 802.11g, 802.11n, 802.11bn, or next-generation protocols. Alternatively, they can be applied to wireless personal area network systems based on Ultra Wide Band (UWB), sensing systems, etc.

[0038] Figure 1 A schematic structural diagram of a communication system 100 applicable to embodiments of this application is shown. The communication system 100 may include an access point (AP) 110 and a station (STA) 120. The station 120 can access the network through the access point 110.

[0039] Access points can support communication or sensing based on WiFi protocols, such as those based on the 802.11a protocol.

[0040] 802.11ax protocol, 802.11ac protocol, 802.11b protocol, 802.11be protocol, 802.11g protocol, 802.11n protocol,

[0041] Communicating or sensing using protocols such as 802.11bn or next-generation protocols.

[0042] The site can support communication or sensing based on WiFi protocols, for example, it can support protocols based on 802.11a.

[0043] 802.11ax protocol, 802.11ac protocol, 802.11b protocol, 802.11be protocol, 802.11g protocol, 802.11n protocol,

[0044] Communicating or sensing using protocols such as 802.11bn or next-generation protocols.

[0045] The communication in the communication system 100 can be communication between access points and stations, or communication between stations, or communication between access points.

[0046] An access point acts as a bridge connecting wired and wireless networks. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet.

[0047] A site, also known as a non-AP STA, and an access point, also known as an APSTA, are, in a sense, also a type of site.

[0048] In some scenarios, access points and sites can be devices used in vehicle networking, 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.

[0049] In some scenarios, the access point can be a terminal device with a WiFi chip (such as a mobile phone) or a network device (such as a router).

[0050] In the embodiments of this application, the site may be a mobile phone, tablet computer, computer, virtual reality (VR) device, augmented reality (AR) device, wireless device in industrial control, set-top box, wireless device in self-driving, vehicle communication device, wireless device in remote medical care, wireless device in smart grid, wireless device in transportation safety, wireless device in smart city or smart home, wireless device, wireless communication chip, etc. that support WLAN or WiFi technology.

[0051] It should be understood that Figure 1 Only one access point and two sites are shown in the example. Optionally, the communication system 100 may include multiple access points or other numbers of sites. This application embodiment does not limit this.

[0052] Optionally, the communication system 100 may also include other devices, such as network controllers, gateways, and other network entities, which are not limited in this application.

[0053] To facilitate understanding of the embodiments of this application, the distributed tone resource unit (DRU) related to this application will be described.

[0054] In the embodiments of this application, tone is also referred to as frequency modulation.

[0055] DRU is currently a hot research topic in the Wi-Fi 8 physical layer. DRU can achieve coverage extension and range versus rate (RvR) enhancement by overcoming the power spectral density (PSD) limitation (e.g., the PSD limit for non-AP STA under low probability of intercept (LPI) at 6 GHz is -1 dBm / MHz).

[0056] The main idea of ​​DRU is to allocate a small-size resource unit (RU) tone to a large bandwidth, thus making the tone discontinuous for each STA. Therefore, each tone can be transmitted at higher power, resulting in lower subcarrier density for the STA within a PSD limit of -1dBm / MHz.

[0057] In some scenarios, RUs are defined with continuous tones and are called regular resource blocks (RRUs).

[0058] If the tone of a DRU is well planned, the maximum transmit power of a DRU can be calculated by the following formula (1):

[0059]

[0060] Where, N RU This indicates the RU size, such as 26, 52, 106, etc.

[0061] M represents the number of tones occupied by the DRU in every 13 subcarriers. For example, if the subcarrier spacing is 78.125kHz, then a 1MHz bandwidth has 12.8 subcarriers, which is approximately equal to 13 subcarriers.

[0062] 10 -0.1 This represents the transmit power (in mW) of -1 dBm in a 1 MHz bandwidth.

[0063] N RU / M*13 should be less than N DBW , where N DBW This indicates the number of subcarriers in the corresponding distributed bandwidth (DBW).

[0064] In some scenarios, M can be calculated using the following formula (2):

[0065]

[0066] Comparing formulas (1) and (2), it can be seen that the maximum transmit power of the DRU is equal to the DRU size (i.e., N). RU ) and the DBW function of the DRU.

[0067] Table 1 shows the performance of RRU and DRU at different N values. RU The maximum transmit power value under DBW conditions.

[0068] Table 1

[0069]

[0070] The maximum transmit power of the RRU can be determined by 10*lg(N) RU The result is calculated as *0.078125)-1(dBm).

[0071] Table 2 shows the transmit power gain of the DRU compared to the RRU within different distributed bandwidths. It can be seen that the gain is related to the RU size (i.e., N). RU And related to distributed bandwidth.

[0072] Table 2

[0073]

[0074] As shown in Table 2, both small and large distributed bandwidths correspond to corresponding transmit power gains. For a STA transmitting a DRU, it can transmit at a higher power than an RRU. For example, for a 52-tone DRU within an 80MHz bandwidth, there can be only one tone per MHz. For a 52-tone RRU, there are approximately 13 tones per MHz. In this case, with a PSD limit of -1dBm / MHz within the 6GHz LPI band, using a DRU can increase the transmit power by 11dB (10*log10(12.8)=11.07dB) for a 52-tone RU. Furthermore, for 80MHz uplink OFDMA transmission with 8 users, using a 106-tone DRU per user, compared to using a 106-tone RRU per user, can improve overall performance by 8.06dB.

[0075] Increasing transmission power enables more advanced modulation and coding schemes (MCS) or allows for greater distances.

[0076] Some design principles for DRUs are as follows:

[0077] 1. Maximize the transmit power of each tone by minimizing the number of tones per MHz (i.e., increasing the interval between tones in a RU);

[0078] 2. Tones in a DRU should be distributed as evenly as possible to achieve simplification and balance in terms of smoothing, phase, and implementation.

[0079] DRUs play a crucial role in uplink Orthogonal Frequency Division Multiple Access (OFDMA). For example, multiple STAs can use DRUs to increase transmit power, and different STAs can use different tones; that is, the DRU consists of different tones for different STAs. Compared to using RRUs of the same size, all tones can achieve higher transmit power, thus significantly improving overall spectral efficiency.

[0080] In related technologies, for Trigger Based (TB) Physical Protocol Data Units (PPDUs), the AP needs to perform power pre-correction (i.e., power control) to control interference from TB PPDUs between non-AP STAs. Non-AP STAs supporting TB PPDU transmission should support power control and meet the accuracy requirements of power control.

[0081] In some scenarios, the power control scheme is as follows:

[0082] If the desired receive power is indicated in the UL Target Receive Power subfield of the UserInfo field in the trigger frame of the triggering TB PPDU or in the UL Target Receive Power subfield of the Triggering Response Scheduling (TRS) Control field in the triggering TB PPDU response frame, then the STA transmits to the allocated MCS at the STA's maximum transmit power in the TB PPDU.

[0083] If the above conditions are not met, the STA uses the following formula (3) to calculate the transmission power of the TB PPDU for the assigned MCS. The unit is dBm:

[0084]

[0085] in,

[0086] PL DL This represents the path loss for the downlink.

[0087] TargetRx pwr This indicates the expected received power, in dBm, as indicated in the UL Target Receive Power subfield of the User Info field or the UL Target Receive Power subfield of the TRS Control field in the Trigger frame.

[0088] In some scenarios, STA uses the following formula (4) to calculate PL. DL :

[0089]

[0090] in,

[0091] This is the AP's transmit power, normalized to 20MHz and expressed in dBm / 20MHz. It is indicated by the AP transmit power subfield in the Common Info field of the Trigger frame, or by the AP Tx Power subfield in the TRS Control field.

[0092] Rx pwr This is the received power, expressed at the antenna connector of the STA transmitting TB PPDU, normalized to 20MHz and expressed in dBm / 20MHz. Rx pwr It is the average value of the signal power received by all antennas, and it is also the average power (PL) calculated on these antennas. DL .

[0093] Optional, and Rx pwr All are normalized to 20MHz and expressed as dBm / 20MHz, and the normalization only includes nonpunctured channels. and TargetRx pwr Use dBm directly without normalization.

[0094] When calculating the transmit power to meet the uplink target receive power, the uplink STA using beamforming should take the beamforming gain into account.

[0095] If beamforming is used when triggering TB PPDU, the AP needs to... or TargetRx pwrThis includes its beamforming gain. Due to hardware capabilities, regulatory requirements, local maximum power levels, and the need for coexistence within non-IEEE 802.11 devices, the transmit power of the TB PPDU may be further limited by the minimum and maximum transmit power of the STA.

[0096] STA in TB PPDU includes its power headroom (PH).

[0097] Accuracy requirements for power control:

[0098] The STA transmitting a TB PPDU should support a minimum transmit power of max(P-32,-10) dBm for each link, where P is the maximum transmit power (in dBm) at the antenna port of that link when the STA meets the Error Vector Magnitude (EVM) and spectral mask requirements and uses MCS 0. When the STA transmits at the above minimum power, but below P_(max, MCS7), it should support the EVM requirement of MCS 7, even if the MCS used for transmission is lower than MCS 7, where P_(max, MCS7) is the maximum transmit power of MCS 7 supported by the STA in the TB PPDU.

[0099] The STA transmitting TB PPDU should support the absolute and relative transmit power requirements and RSSI measurement accuracy requirements defined in the standard.

[0100] The UL Target Receive Power subfield is carried in the Extreme High Throughput (EHT) variant User Info field, such as... Figure 2 As shown, the UL Target Receive Power subfield is used to indicate the AP's expected receive power, which is measured at the AP's antenna connector and averaged across all antennas. The measurement is of the Extreme High Throughput (EHT) portion of the specified RU's TB PPDU.

[0101] To facilitate understanding of the embodiments of this application, the downlink power control related to this application will be described.

[0102] like Figure 3As shown, the AP's transmit power can be indicated in the Access Point Transmit Power subfield (AP Tx Power subfield) within the Common Info field of the Trigger frame. Specifically, the AP Tx Power field in the EHT variant Common Information field indicates the transmit power of the AP used to transmit triggering PPDUs, in dBm / 20MHz. The AP's transmit power is... It can be calculated using the following formula (5):

[0103] P TX =-20+F Val Formula (5)

[0104] Where F Val It is the value of AP Tx Power subfield.

[0105] After the introduction of DRU, how to control the power of PPDUs using DRU transmission is an urgent problem to be solved.

[0106] The technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, all of which fall within the protection scope of the embodiments of this application.

[0107] Figure 4 This is a schematic interactive diagram of a power configuration method 200 according to an embodiment of this application, such as... Figure 4 As shown, the method 200 includes at least the following:

[0108] S210, the access point device indicates the target parameters to the site device.

[0109] Correspondingly, the site device obtains the target parameters from the access point device.

[0110] S220, the site equipment determines the transmit power of the PPDU to be transmitted using the DRU based on the target parameters.

[0111] Further optional, S230, the site equipment can use the DRU to send PPDU based on this transmit power.

[0112] The site equipment in this application embodiment can be Figure 1 The station 120 in the communication system shown, also known as non-APSTA, can be, for example, various types of station 120, including but not limited to the station equipment. The access point equipment in this embodiment can be... Figure 1Access point 110 in the communication system shown, or AP STA, can be of various types, including but not limited to access point 110.

[0113] It should be noted that the communication in the embodiments of this application can be communication between a single AP and a STA, or it can be multi-AP cooperative communication, and this application does not limit it in this way.

[0114] In some embodiments, the target parameter may be determined by the access point device based on a target transmit power or a target transmit power gain, wherein the target transmit power is the transmit power that the access point device expects the site device to use to transmit PPDU using DRU, and the target transmit power gain is the gain of the transmit power that the access point device expects the site device to use to transmit PPDU using DRU relative to the transmit power that the access point device expects the site device to use to transmit PPDU using Continuous Resource Unit.

[0115] Optionally, the target transmit power or target transmit power gain can be determined based on factors such as the distance between the access point device and the site device, the data transmission rate, and the MCS used for data transmission.

[0116] In the embodiments of this application, a continuous resource unit may refer to an RU consisting of a plurality of consecutive subcarriers or tones.

[0117] In the embodiments of this application, a continuous resource unit is also called a regular resource unit (English: Regular RU, abbreviated as RRU). Of course, a continuous resource unit can also be replaced with other names, and this application does not limit it.

[0118] In this application embodiment, an RU comprising K consecutive tones is referred to as a K-tone RRU. For example, a 26-tone RRU refers to an RU comprising 26 consecutive tones. That is, the concept of a K-tone RRU is the same as the concept of a K-tone RU in the existing 802.11ax / 802.11be standards.

[0119] In the embodiments of this application, DRU can refer to an RU composed of a certain number of subcarriers that are extended / distributed over a certain bandwidth.

[0120] In this application embodiment, a DRU comprising K tones is referred to as a K-tone DRU. For example, a 26-tone DRU refers to a DRU comprising 26 subcarriers. That is, the concept of a K-tone DRU is the same as the concept of a K-tone DRU in the 802.11bn standard.

[0121] In the embodiments of this application, subcarriers and tones can be interchanged.

[0122] In some embodiments, the target transmit power is associated with at least one of the following:

[0123] The number of tones occupied by DRU per MHz of bandwidth;

[0124] DRU size;

[0125] Distributed bandwidth of DRU.

[0126] In the embodiments of this application, size or dimensions are referred to as dimensions.

[0127] Optionally, associating the target transmit power with the distributed bandwidth of the DRU may include determining the target transmit power based on the distributed bandwidth of the DRU. For example, different distributed bandwidths correspond to different transmit power ranges.

[0128] Optionally, the association between the target transmit power and the size of the DRU may include determining the target transmit power based on the size of the DRU. For example, different DRU sizes correspond to different transmit power ranges.

[0129] Optionally, the association between the target transmit power and the number of tones occupied by DRUs per MHz bandwidth may include determining the target transmit power based on the number of tones occupied by DRUs per MHz bandwidth. For example, different numbers of tones occupied by DRUs per MHz bandwidth correspond to different transmit power ranges.

[0130] In some embodiments, the target transmit power gain is associated with at least one of the following:

[0131] The number of tones occupied by DRU per MHz bandwidth;

[0132] DRU dimensions;

[0133] Distributed bandwidth of DRU.

[0134] Optionally, the association between the target transmit power gain and the distributed bandwidth of the DRU may include determining the target transmit power gain based on the distributed bandwidth of the DRU. For example, different distributed bandwidths correspond to different transmit power gain ranges.

[0135] Optionally, the association between the target transmit power gain and the size of the DRU may include determining the target transmit power gain based on the size of the DRU. For example, different DRU sizes correspond to different transmit power gain ranges.

[0136] Optionally, the association between the target transmit power gain and the number of tones occupied by the DRU per MHz bandwidth may include determining the target transmit power gain based on the number of tones occupied by the DRU per MHz bandwidth. For example, different numbers of tones occupied by the DRU per MHz bandwidth correspond to different transmit power gain ranges.

[0137] In some embodiments, the target transmit power is equal to the maximum transmit power that the site equipment can use to transmit PPDU using DRU, or the target uplink transmit power is less than the maximum transmit power.

[0138] Optionally, the maximum transmit power that the site equipment can use to send PPDUs using DRU can be a fixed value, such as the maximum transmit power corresponding to the DRU case in Table 1, for example, 20.53dBm.

[0139] Optionally, the maximum transmit power that the site equipment can use to transmit PPDUs using a DRU can also be related to the DBW and / or the DRU size. For example, when DBW = 160MHz, the maximum transmit power that the site equipment can use to transmit using a DRU can be 20.53dBm; when DBW = 20MHz, the maximum transmit power that the site equipment can use to transmit using a DRU can be 11.47dBm. As another example, when the DRU size N... RU When the value is 106, the maximum transmit power that the site equipment can use when transmitting with a DRU is 19.25 dBm; at DRU size N RU When the value is 52, the maximum transmit power that the site equipment can use when transmitting with DRU is 16.16 dBm.

[0140] In other embodiments, the target transmit power is a target quantized value among N1 quantized values, where N1 quantized values ​​are obtained by quantizing the maximum transmit power that the site equipment can use to send PPDUs using DRU, and N1 is a positive integer. Optionally, the N1 quantized values ​​can correspond to N1 transmit power ranges, where each quantized value corresponds to a transmit power range, and each quantized value can be the average, maximum, or minimum value of the corresponding transmit power range. For example, the transmit power from 0 to the maximum can be divided into N1 transmit power ranges, and the upper limit, average value, or lower limit of each transmit power range can be taken as the quantized value corresponding to that transmit power range. It can be understood that the larger the value of N1, the higher the quantization accuracy and the higher the fineness of power control for the site equipment.

[0141] Taking a maximum transmit power of 20.53dBm as an example, the transmit power range of 0-20.53 can be divided into four transmit power ranges (e.g., 0-5, 5-10, 10-15, 15-20). Then, the upper limit integer value of each transmit power range is taken as the quantization value of that transmit power range to obtain four quantization values: 5dBm, 10dBm, 15dBm, and 20dBm.

[0142] In some embodiments, the target transmit power gain is equal to the maximum transmit power gain that the site equipment can use, or the target uplink transmit power gain is less than the maximum transmit power gain, which is the maximum gain of the transmit power used by the site equipment to transmit PPDU using DRU relative to the transmit power used by the site equipment to transmit PPDU using RRU.

[0143] Optionally, the maximum transmit power gain that the site equipment can use can be a fixed value, such as the maximum transmit power gain corresponding to the DRU case in Table 2, for example, 11.07 dB.

[0144] Optionally, the maximum transmit power gain usable by the site equipment can also be related to the DBW and / or DRU size. For example, at DBW = 160MHz, the maximum transmit power gain usable by the site equipment using DRU transmission can be 11.07dB; at DBW = 20MHz, the maximum transmit power gain usable by the site equipment using DRU transmission can be 8.06dB. As another example, at DRU size N... RU When the value is 106, the maximum transmit power gain that the site equipment can use when transmitting with a DRU is 11.07 dB; at DRU size N RU When the value is 262, the maximum transmit power gain that the site equipment can use when transmitting with DRU is 8.06dB.

[0145] In other embodiments, the target transmit power gain is a target quantized value among N² quantized values, where N² is a positive integer, obtained by quantizing the maximum transmit power gain usable by the site equipment. Optionally, the N² quantized values ​​can correspond to N² transmit power gain ranges, where each quantized value corresponds to a transmit power gain range, and each quantized value can be the average, maximum, or minimum value of the corresponding transmit power gain range. For example, the range from 0 to the maximum transmit power gain can be divided into N² transmit power gain ranges, and the upper limit, average value, or lower limit of each transmit power gain range can be taken as the quantized value corresponding to that transmit power gain range. It can be understood that the larger the value of N², the higher the quantization accuracy and the higher the precision of power control for the site equipment.

[0146] Taking a maximum transmit power gain of 11.07dB as an example, the transmit power gain range of 0-11.07 can be divided into 6 transmit power gain ranges (e.g., 0-2, 2-4, 4-6, 6-8, 8-10, 10-12). Then, the upper limit integer value of each transmit power range is taken as the quantization value of that transmit power gain range to obtain 6 quantization values: 2dBm, 4dBm, 6dB, 10dB, and 12dB.

[0147] In some embodiments, the target transmit power is the transmit power used for the data tone and pilot tone in the DRU, or the target transmit power includes a first uplink transmit power and a second uplink transmit power, wherein the first uplink transmit power is the transmit power used by the site equipment to transmit PPDUs on the pilot tone in the DRU, and the second uplink transmit power is the transmit power used by the site equipment to transmit PPDUs on the data tone in the DRU.

[0148] That is, the data tone and pilot tone in the DRU can use a uniform uplink transmit power, or they can use independent uplink transmit powers. For example, the site equipment can use the first uplink transmit power on the pilot tone in the DRU and the second uplink transmit power on the data tone in the DRU.

[0149] In some embodiments, the target transmit power gain is a power gain for the data tone and pilot tone in the DRU, or the target transmit power gain includes a power gain for the data tone in the DRU and a power gain for the pilot tone in the DRU.

[0150] That is, a uniform uplink transmit power gain can be used for the data tone and pilot tone in the DRU, or independent uplink transmit power gains can be used. For example, the site equipment uses the first uplink transmit power gain on the pilot tone in the DRU, and the site equipment uses the second uplink transmit power gain on the data tone in the DRU.

[0151] It should be noted that, in the embodiments of this application, the site device sending a PPDU on the pilot tone can be understood as the site device sending the pilot part of the PPDU on the pilot tone, and the site device sending a PPDU on the data tone can be understood as the site device or access point device sending the data part of the PPDU on the data tone.

[0152] Optionally, the target parameter can be used for uplink power control, for example, to control the transmit power of the site equipment when sending PPDUs using DRU.

[0153] In some embodiments, the target parameter includes at least one of the following:

[0154] The uplink target received power expected by the access point device;

[0155] The site equipment uses the DRU to transmit the base downlink target receive power corresponding to the PPDU;

[0156] The target power offset is used to indicate the power offset of the site equipment transmitting PPDU using DRU relative to the site equipment transmitting PPDU using Continuous Resource Unit.

[0157] Optionally, the basic uplink target received power corresponding to the PPDU transmitted by the site equipment using DRU can be understood as the received power detected by the access point equipment when the site equipment does not transmit PPDU using DRU. This basic uplink target received power can be considered as the received signal noise floor.

[0158] It should be noted that in the embodiments of this application, the power offset can also be replaced by other implementation methods, such as power scaling factor. For example, the target power offset can be replaced by the target power scaling factor (or scaling ratio). The target power scaling factor is the power scaling factor of the site equipment using DRU to send PPDU relative to the site equipment using Continuous Resource Unit to send PPDU. The first power offset mentioned below can be replaced by the first power scaling factor. The first power scaling factor can be the power scaling factor of the second uplink target received power relative to the first uplink target received power. The second power offset can be replaced by the second power scaling factor. The second power scaling factor can be the power scaling factor of the first uplink target received power relative to the second uplink target received power.

[0159] In some embodiments, the target parameter includes the uplink target receive power expected by the access point device, the uplink target receive power being used for the data tone and pilot tone in the DRU, that is, the uplink target receive power is the expected uplink target receive power of the access point device for the site device to transmit PPDUs on the pilot tone and data tone in the DRU.

[0160] For example, when the data tone and pilot tone in a DRU can use a uniform uplink transmit power or uplink transmit power gain, the access point equipment can also indicate a uniform desired uplink target receive power for the transmission of PPDUs on the data tone and pilot tone in the DRU.

[0161] In some embodiments, the target parameters include a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the expected uplink target receive power of the access point device for transmitting PPDUs on the pilot tone of the site device in the DRU, and the second uplink target receive power is the expected uplink target receive power of the access point device for transmitting PPDUs on the data tone of the site device in the DRU.

[0162] For example, when the data tone and pilot tone in the DRU can adopt independent uplink transmit power or uplink transmit power gain, the access point equipment can also indicate independent desired uplink target receive power, i.e., first uplink target receive power and second uplink target receive power, for the transmission of PPDU on the data tone and pilot tone in the DRU.

[0163] In some embodiments, the target parameters include a first uplink target received power and a first power offset, wherein the first uplink target received power is the expected uplink target received power of the access point device for transmitting PPDUs on the pilot tone of the site device in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power. Alternatively, the first power offset is the offset of the second uplink transmit power relative to the first uplink transmit power, wherein the first uplink transmit power is the transmit power used by the site device to transmit PPDUs on the pilot tone of the DRU, and the second uplink transmit power is the transmit power used by the site device to transmit PPDUs on the data tone of the DRU.

[0164] In some embodiments, the target parameters include the second uplink target received power and the second power offset, wherein the second uplink target received power is the uplink target received power that the access point device expects to transmit PPDUs for the data tone of the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power, or in other words, the second power offset is the offset of the first uplink transmit power relative to the second uplink transmit power.

[0165] For example, when the data tone and pilot tone in the DRU can adopt independent uplink transmit power or uplink transmit power gain, for the reception of PPDU on the data tone and pilot tone in the DRU, the access point device can indicate two uplink target receive powers, or it can indicate one uplink target receive power and a power offset, such as a first uplink target receive power and a first power offset, or a second uplink target receive power and a second power offset.

[0166] In some embodiments, the target parameter includes the basic uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU. The basic uplink target receive power is used for the data tone and pilot tone in the DRU, that is, the basic uplink target receive power is the basic uplink target receive power corresponding to the PPDU transmitted by the site equipment using the data tone and pilot tone in the DRU; or

[0167] The target parameters include the basic downlink target receive power corresponding to the data tone transmission PPDU of the site equipment in the DRU and the basic downlink target receive power corresponding to the pilot tone transmission PPDU of the site equipment in the DRU.

[0168] That is, a unified basic uplink target received power or an independent basic uplink target received power can be used for the data tone and pilot tone in the DRU. Correspondingly, the site equipment can use the unified or independent basic uplink target received power to determine the transmit power of the PPDU on the data tone and pilot tone in the DRU.

[0169] In some embodiments, the target parameter is indicated by a trigger frame, wherein the trigger frame is used to trigger the site device to send a PPDU using a DRU.

[0170] It should be noted that the target parameter can be indicated by an existing or reserved field in the trigger frame, or a new field can be added to indicate the target parameter; this application does not limit this.

[0171] In some embodiments, the target power offset is indicated by a user information field in a trigger frame, or by a TRS control field, wherein the trigger frame is used to trigger the site equipment to send a PPDU using a DRU.

[0172] In some implementations, the target power offset is indicated by the uplink target receive power subfield in the user information field of the trigger frame, or by the uplink target receive power subfield in the TRS control field.

[0173] For example, the target power offset is indicated by N bits in the uplink target received power field, where N bits include some or all of the bits in the uplink target received power field, and N is a positive integer.

[0174] In some embodiments, the uplink target received power desired by the access point device is indicated by the User Info field or the Trigger Response Scheduler (TRS) control field in the trigger frame.

[0175] It should be noted that the uplink target received power expected by the access point device can be indicated by existing or reserved fields in the User Info field or the Trigger Response Scheduler (TRS) control field. Alternatively, a new field can be added to indicate the uplink target received power expected by the access point device. This application does not limit this.

[0176] In some implementations, the uplink target receive power expected by the access point device is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field.

[0177] It should be noted that, in the embodiments of this application, the uplink target received power expected by the access point device can be indicated directly or indirectly through the uplink target received power field. For example, the value of the uplink target received power field can be used to determine the uplink target received power expected by the access point device.

[0178] In some implementations, the desired uplink target received power of the access point device is indicated by M bits in the uplink target received power field, where M bits include some or all of the bits in the uplink target received power field, and M is a positive integer. Optionally, M = 7.

[0179] Optionally, in some embodiments, the base downlink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU can be a predefined value, or a default value.

[0180] The following describes, with reference to specific embodiments, how the desired uplink target received power of the access point device is determined.

[0181] Example 1:

[0182] In this embodiment 1, the base uplink target received power corresponding to the PPDU transmitted by the site equipment using the DRU includes a first base uplink target received power. The M bits are used to indicate the first value, and the expected uplink target received power of the access point equipment is determined based on the first value and the first base uplink target received power. Optionally, the first value belongs to a first value range, which is the range of values ​​for the expected uplink target received power of the access point equipment for the PPDU transmitted by the site equipment using the Continuous Resource Unit.

[0183] For example, the site equipment can determine the desired uplink target received power of the access point equipment according to the following formula (6):

[0184] TargetRx pwr,DRU =PB STA,1 +Fval formula(6)

[0185] Among them, TargetRx pwr,DRU This represents the desired uplink target received power of the access point device, PB. STA,1 Fval represents the first base uplink target received power, and Fval represents the value of M bits.

[0186] Optionally, M bits can occupy all bits of the uplink target receive power field, for example, 7 bits.

[0187] Optionally, the first base uplink target received power can be a value greater than -110dBm.

[0188] Optionally, taking M bits as 7 bits as an example, the first value range can be 0-90.

[0189] Example 2:

[0190] In this embodiment 2, the M bits are used to indicate a first value. The desired uplink target received power of the access point device is determined based on the first value, a second basic uplink target received power, and the target power offset. The second basic uplink target received power is the basic uplink target received power used by the site device to transmit PPDUs using Continuous Resource Units; or

[0191] The M bits are used to indicate the first value. The target uplink transmit power is determined based on the first value and the second basic uplink target receive power. The second basic uplink target receive power is the basic uplink target receive power used by the site equipment to transmit PPDU using the Continuous Resource Unit.

[0192] Optionally, the first value belongs to a first value range, which is the range of values ​​for the expected uplink target received power of the access point device when transmitting PPDU using Continuous Resource Unit for the site device.

[0193] For example, the site equipment can determine the desired uplink target received power of the access point equipment according to the following formula (7) or formula (8):

[0194] TargetRx pwr,DRU =PB STA,2 +Fval+ΔdRU formula (7)

[0195] TargetRx pwr,DRU =PB STA,2 +Fval formula(8)

[0196] Among them, TargetRx pwr,DRU This represents the desired uplink target received power of the access point device, PB. STA,2 This represents the second base uplink target received power, Fval represents the value of M bits, and ΔdRU represents the target power offset.

[0197] Optionally, M bits can occupy all bits of the uplink target receive power field, for example, 7 bits.

[0198] Optionally, the second base uplink target received power can be -110dBm.

[0199] Optionally, taking M bits as 7 bits as an example, the first value range can be 0-90.

[0200] It should be noted that the first value in Embodiment 1 and Embodiment 2 can be the same or different. Using the first value only indicates that both belong to the first value range, but does not limit the two values ​​to be the same.

[0201] Example 3:

[0202] In this embodiment 3, the M bits are used to indicate a second value. The uplink target receive power expected by the access point device is determined based on the second value and a second basic uplink target receive power. The second basic uplink target receive power is the basic uplink target receive power used by the site device to transmit PPDUs using Continuous Resource Units (DRUs). Optionally, the second value belongs to a second value range, which is the range of values ​​for the uplink target receive power expected by the access point device for the site device to transmit PPDUs using DRUs.

[0203] For example, the site equipment can determine the target uplink transmit power according to the following formula (9):

[0204] TargetRx pwr,DRU =PB STA,2 +Fval DRU Formula (9)

[0205] Among them, TargetRx pwr,DRU This represents the desired uplink target received power of the access point device, PB. STA,2 Fval represents the second base uplink target received power. DRU This represents the values ​​of the M bits.

[0206] Optionally, M bits can occupy all bits of the uplink target receive power field, for example, 7 bits.

[0207] Optionally, the second base uplink target received power can be -110dBm.

[0208] Optionally, taking M bits as 7 bits as an example, the second value range can be 0-90, or it can be different from 0-90.

[0209] Example 4:

[0210] In this embodiment 4, the basic uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes a third basic uplink target receive power. The M bits are used to indicate the third value, and the uplink target receive power expected by the access point equipment is determined based on the third value and the third basic uplink target receive power. Optionally, the third value belongs to a third value range, which is the range of values ​​for the expected uplink target receive power of the access point equipment for the PPDU transmitted by the site equipment using the DRU.

[0211] For example, the site equipment can determine the desired uplink target received power of the access point equipment according to the following formula (10):

[0212] TargetRx pwr,DRU =PBSTA,3+Fval DRU Formula (10)

[0213] Among them, TargetRx pwr,DRU This represents the desired uplink target received power of the access point device, PB. STA,3 Fval represents the third-base uplink target received power. DRU This represents the values ​​of the M bits.

[0214] Optionally, M bits can occupy all bits of the uplink target receive power field, for example, 7 bits.

[0215] Optionally, the third-base uplink target received power can be a value greater than -110dBm.

[0216] Optionally, taking M bits as 7 bits as an example, the third value can be in the range of 0-90, or it can be different from 0-90.

[0217] In some embodiments, the uplink target receive power field is used to indicate a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the expected uplink target receive power of the access point device for the site device transmitting a PPDU on the pilot tone in the DRU, and the second uplink target receive power is the expected uplink target receive power of the access point device for the site device transmitting a PPDU on the data tone in the DRU; or

[0218] The uplink target received power field is used to indicate a first uplink target received power and a first power offset, wherein the first uplink target received power is the expected uplink target received power of the access point device for the site device to transmit a PPDU on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or

[0219] The uplink target received power field is used to indicate the second uplink target received power and the second power offset, wherein the second uplink target received power is the expected uplink target received power of the access point device for transmitting PPDUs on the data tone of the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

[0220] In some embodiments, P bits in the uplink target received power field are used to indicate the first uplink target received power, and Q bits in the uplink target received power field are used to indicate the second uplink target received power, where P and Q are positive integers; or

[0221] The P bits in the uplink target received power field are used to indicate the first uplink target received power, and the R bits in the uplink target received power field are used to indicate the first power offset, where P and R are positive integers; or

[0222] The S bits in the uplink target received power field are used to indicate the second uplink target received power, and the Q bits in the uplink target received power field are used to indicate the second power offset, where S and Q are positive integers.

[0223] In some embodiments, the base uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes a fourth base uplink target receive power and / or a fifth base uplink target receive power, wherein the fourth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the pilot tone in the DRU, and the fifth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the data tone in the DRU.

[0224] In some embodiments, the P bits are used to indicate a fourth value, the Q bits are used to indicate a fifth value, the R bits are used to indicate a first power offset, the Q bits are used to indicate a second power offset, the first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power.

[0225] Optionally, the basic downlink target received power corresponding to the PPDU transmitted by the site equipment on the pilot tone in the DRU can be understood as the received power detected by the access point equipment when the site equipment does not use the pilot tone to transmit the PPDU. This fourth basic downlink target received power can be considered as the received signal noise floor.

[0226] Optionally, the basic downlink target received power corresponding to the PPDU sent by the site equipment on the data tone in the DRU can be understood as the received power detected by the access point equipment when the site equipment does not send the PPDU using the data tone. This fourth basic downlink target received power can be considered as the received signal noise floor.

[0227] Optionally, the site equipment can determine the first uplink target received power according to the following formula (11):

[0228] TargetRx pwr,DRU,pilot =PB STA,4 +Fval DRU,pilot Formula (11)

[0229] Among them, TargetRx pwr,DRU,pilot This represents the first uplink target received power, PB. STA,4 Fval represents the fourth base uplink target received power. DRU,pilot This represents the values ​​of the P bits.

[0230] Optionally, the fourth basic downlink target received power can be a value greater than -110dBm, or it can be -110dBm. That is, the basic downlink target received power corresponding to the PPDU transmitted by the site equipment on the pilot tone in the DRU and the basic downlink target received power corresponding to the PPDU transmitted by the site equipment on the continuous resource unit can be equal or unequal.

[0231] Optionally, the site equipment can determine the second uplink target received power according to the following formula (12):

[0232] TargetRx pwr,DRU,data =PB STA,5 +Fval DRU,data Formula (12)

[0233] Among them, TargetRx pwr,DRU,data This indicates the second uplink target received power, PB. STA,5 Fval represents the uplink target received power on the fifth base. DRU,data This represents the values ​​of the Q bits.

[0234] Optionally, the fifth basic downlink target received power can be a value greater than -110dBm, or it can be -110dBm. That is, the basic downlink target received power corresponding to the PPDU transmitted by the site equipment on the data tone in the DRU and the basic downlink target received power corresponding to the PPDU transmitted by the site equipment on the continuous resource unit.

[0235] In other embodiments, the first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the first uplink target received power and the first power offset.

[0236] For example, the site equipment can determine the first uplink target received power according to the above formula (11).

[0237] Optionally, the site equipment can also determine the second uplink target received power according to the following formula (13):

[0238] TargetRx pwr,DRU,data =TargetRx pwr,DRU,pilot +ΔFval data-pilot Formula (13)

[0239] Among them, TargetRx pwr,DRU,data Indicates the second uplink target received power, TargetRx pwr,DRU,pilot Indicates the first uplink target received power, ΔFval data-pilot This indicates the first power offset.

[0240] In some other embodiments, the second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power, and the first uplink target received power is determined based on the second uplink target received power and the second power offset.

[0241] For example, the site equipment can determine the second uplink target received power according to the above formula (12).

[0242] Optionally, the site equipment can also determine the first uplink target received power according to the following formula (14):

[0243] TargetRx pwr,DRU,pilot =TargetRx pwr,DRU,data +ΔFval pilot-data Formula (14)

[0244] Among them, TargetRx pwr,DRU,pilot Indicates the first uplink target received power, TargetRx pwr,DRU,data ΔFval represents the second uplink target received power, i.e., the second uplink transmit power. pilot-data This indicates the second power offset.

[0245] In some embodiments of this application, after the site device obtains the uplink target received power expected by the access point device, the target uplink transmit power can be determined according to the following formula (15):

[0246]

[0247] Among them, PL DL This represents path loss.

[0248] In some embodiments, the site device can determine the path loss PL between the access point device and the site device according to the following formula (16). DL :

[0249]

[0250] in, Rx represents the transmit power used by the access point device to send the trigger frame. pwr It is the received power of the site device for that trigger frame, for example, Rx pwr This could be the average signal power received by all antennas of the site equipment, located at the antenna connector. Optionally, Rx pwr It can be normalized to 20MHz and expressed as dBm / 20MHz.

[0251] The following describes the transmit power of the access point device in conjunction with specific embodiments. The way of giving instructions.

[0252] In some embodiments, the transmit power used by the access point device to send the trigger frame is indicated by the trigger frame, wherein the trigger frame is used to trigger the site device to send PPDU using DRU.

[0253] It should be noted that the transmit power used by the access point device to send the trigger frame can be indicated by existing or reserved fields in the trigger frame, or a new field can be added to indicate the transmit power used by the access point device to send the trigger frame. This application does not limit this.

[0254] In some embodiments, the transmit power used by the access point device to send the trigger frame is carried by the common information field in the trigger frame, wherein the trigger frame is used to trigger the site device to send PPDU using DRU.

[0255] In some embodiments, the transmit power used by the access point device to send the trigger frame is indicated by the access point transmit power subfield (AP Tx Power subfield) in the public information field.

[0256] For example, the transmit power used by the access point device to send the trigger frame is indicated by T bits in the access point transmit power field, where T bits include some or all of the bits in the access point transmit power field, and T is a positive integer.

[0257] Optionally, the site device can determine the path loss between the access point device and the site device based on the transmit power of the access point device indicated by the transmit power field of the access point and its own receive power of the PPDU.

[0258] For example, by substituting the transmit power of the access point device and the receive power of the site device, as indicated by the access point transmit power field, into formula (16), the path loss PL between the access point device and the site device can be obtained. DL .

[0259] In some embodiments of this application, the method 200 further includes:

[0260] The access point device receives first indication information from the site device, the first indication information being used to indicate that the site device supports sending PPDU using DRU.

[0261] It should be understood that this application does not limit the way the first instruction information is carried, such as through MAC layer signaling, physical layer signaling or higher layer signaling.

[0262] Optionally, the first indication information may be carried in the signaling used for carrying capacity information.

[0263] Optionally, the first indication information can also be carried by a PPDU (e.g., a TB PPDU) sent by the site equipment.

[0264] It should be noted that the site device can actively send the first indication information, or it can send the first indication information based on the trigger of the access point device, such as based on the trigger frame of the access point device.

[0265] In some embodiments of this application, the access point device can perform power control on PPDUs transmitted using Continuous Resource Units and DRUs simultaneously, or it can perform independent power control on PPDUs transmitted using Continuous Resource Units and PPDUs transmitted using DRUs. This application does not limit this.

[0266] In summary, the access point device can indicate the target parameters for the site device to transmit PPDU using the DRU. Furthermore, the site device can determine the transmit power for transmitting PPDU using the DRU based on the target parameters, thereby enabling the access point device to control the power of the site device to transmit PPDU using the DRU through the target parameters.

[0267] For example, the access point device can configure the site device with the access point device's expected uplink target received power, the site device's basic uplink target received power corresponding to the PPDU transmitted by the DRU, the power offset of the site device's PPDU transmitted by the DRU relative to the site device's PPDU transmitted by the RRU, the access point device's transmit power, etc., thereby realizing power control of the site device's PPDU transmission by the DRU.

[0268] The above text combined Figure 4 The method embodiments of this application are described in detail below, in conjunction with... Figures 5 to 9 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0269] Figure 5 A schematic block diagram of a wireless communication device 500 according to an embodiment of this application is shown. The wireless communication device 500 may be an access point device, or a component within an access point device, such as a chip, circuit, or module.

[0270] like Figure 5 As shown, the wireless communication device 500 includes:

[0271] The transmitting module 510 is used to indicate target parameters to the site equipment, the target parameters being used to determine the transmit power of the site equipment when transmitting Physical Layer Protocol Data Units (PPDUs) using a Distributed Tone Resource Unit (DRU).

[0272] In some embodiments, the target parameter includes at least one of the following:

[0273] The uplink target received power expected by the access point device;

[0274] The site equipment uses the DRU to transmit the base downlink target receive power corresponding to the PPDU;

[0275] The target power offset is used to indicate the power offset of the site equipment transmitting PPDU using DRU relative to the site equipment transmitting PPDU using Continuous Resource Unit.

[0276] In some embodiments, the target parameter includes the uplink target receive power expected by the access point device, which is the expected uplink target receive power of the access point device for transmitting PPDUs on pilot tones and data tones of the site device in the DRU; or...

[0277] The desired uplink target receive power of the access point device includes a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the desired uplink target receive power of the access point device for the site device transmitting PPDUs on the pilot tone in the DRU, and the second uplink target receive power is the desired uplink target receive power of the access point device for the site device transmitting PPDUs on the data tone in the DRU; or

[0278] The uplink target received power expected by the access point device includes a first uplink target received power and a first power offset, wherein the first uplink target received power is the uplink target received power expected by the access point device for the PPDU transmitted by the site device on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or

[0279] The uplink target received power expected by the access point device includes the second uplink target received power and the second power offset, wherein the second uplink target received power is the uplink target received power expected by the access point device for the data tone of the PPDU transmitted by the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

[0280] In some embodiments, the target parameter includes the basic uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU. The basic uplink target receive power is the basic uplink target receive power corresponding to the data tone and pilot tone PPDU transmitted by the site equipment in the DRU. Alternatively, the basic uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes the basic uplink target receive power corresponding to the data tone PPDU transmitted by the site equipment in the DRU and the basic uplink target receive power corresponding to the pilot tone PPDU transmitted by the site equipment in the DRU.

[0281] In some embodiments, the uplink target received power desired by the access point device is indicated by the user information field or the trigger response scheduling (TRS) control field in the trigger frame.

[0282] In some embodiments, the uplink target receive power expected by the access point device is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field.

[0283] In some embodiments, the desired uplink target receive power of the access point device is indicated by M bits in the uplink target receive power field, where M bits include some or all of the bits in the uplink target receive power field, and M is a positive integer.

[0284] In some embodiments, the base uplink target receive power corresponding to the PPDU transmitted by the site device using the DRU includes a first base uplink target receive power. The M bits are used to indicate the first value. The uplink target receive power expected by the access point device is determined based on the first value and the first base uplink target receive power. The first value belongs to a first value range, which is the range of values ​​of the uplink target receive power expected by the access point device for the site device to transmit the PPDU using the Continuous Resource Unit.

[0285] In some embodiments, the M bits are used to indicate a first value, and the uplink target received power expected by the access point device is determined based on the first value, a second basic uplink target received power, and the target power offset. The second basic uplink target received power is the basic uplink target received power used by the site device to transmit PPDUs using Continuous Resource Units; or

[0286] The M bits are used to indicate the first value. The uplink target receive power expected by the access point device is determined based on the first value and the second basic uplink target receive power. The second basic uplink target receive power is the basic uplink target receive power corresponding to the PPDU sent by the site device using the Continuous Resource Unit.

[0287] Wherein, the first value belongs to a first value range, which is the range of values ​​of the expected uplink target received power of the access point device when sending PPDU using Continuous Resource Unit for the site device.

[0288] In some embodiments, the M bits are used to indicate a second value, the uplink target receive power expected by the access point device is determined based on the second value and a second basic uplink target receive power, the second basic uplink target receive power is the basic uplink target receive power corresponding to the PPDU sent by the site device using a continuous resource unit, the second value belongs to a second value range, the second value range is the range of values ​​of the uplink target receive power expected by the access point device for the site device to send a PPDU using a DRU.

[0289] In some embodiments, the basic uplink target receive power corresponding to the PPDU transmitted by the site device using the DRU includes a third basic uplink target receive power. The M bits are used to indicate the third value. The uplink target receive power expected by the access point device is determined based on the third value and the third basic uplink target receive power. The third value belongs to a third value range, which is the range of values ​​for the expected uplink target receive power of the access point device for the PPDU transmitted by the site device using the DRU.

[0290] In some embodiments, the uplink target receive power field is used to indicate a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the expected uplink target receive power of the access point device for transmitting PPDUs for the site device on the pilot tone in the DRU, and the second uplink target receive power is the expected uplink target receive power of the access point device for transmitting PPDUs for the site device on the data tone in the DRU; or

[0291] The uplink target received power field is used to indicate a first uplink target received power and a first power offset, wherein the first uplink target received power is the expected uplink target received power of the access point device for the site device to transmit a PPDU on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or

[0292] The uplink target received power field is used to indicate the second uplink target received power and the second power offset, wherein the second uplink target received power is the expected uplink target received power of the access point device for transmitting PPDUs on the data tone of the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

[0293] In some embodiments, P bits in the uplink target received power field are used to indicate the first uplink target received power, and Q bits in the uplink target received power field are used to indicate the second uplink target received power, where P and Q are positive integers; or

[0294] The P bits in the uplink target received power field are used to indicate the first uplink target received power, and the R bits in the uplink target received power field are used to indicate the first power offset, where P and R are positive integers; or

[0295] The S bits in the uplink target received power field are used to indicate the second uplink target received power, and the Q bits in the uplink target received power field are used to indicate the second power offset, where S and Q are positive integers.

[0296] In some embodiments, the base uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes a fourth base uplink target receive power and / or a fifth base uplink target receive power, wherein the fourth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the pilot tone in the DRU, and the fifth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the data tone in the DRU;

[0297] Wherein, P bits are used to indicate a fourth value, Q bits are used to indicate a fifth value, R bits are used to indicate a first power offset, Q bits are used to indicate a second power offset, the first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power; or

[0298] The first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the first uplink target received power and the first power offset; or

[0299] The second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power, and the first uplink target received power is determined based on the second uplink target received power and the second power offset.

[0300] In some embodiments, the target power offset is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field.

[0301] In some embodiments, the target parameters are determined based on the target transmit power or the target transmit power gain;

[0302] Wherein, the target transmit power is the transmit power that the access point device expects the site device to use when sending PPDU using DRU;

[0303] Wherein, the target transmit power gain is the gain of the transmit power that the access point device expects the site device to use to transmit PPDU using DRU, relative to the transmit power that the access point device expects the site device to use to transmit PPDU using Continuous Resource Unit.

[0304] In some embodiments, the target transmit power or the target transmit power gain is associated with at least one of the following:

[0305] The number of tones occupied by DRU per MHz bandwidth;

[0306] DRU dimensions;

[0307] Distributed bandwidth of DRU.

[0308] In some embodiments, the target transmit power is equal to the maximum transmit power that the site equipment can use to transmit PPDUs using a DRU, or the target transmit power is less than the maximum transmit power; or

[0309] The target transmit power gain is equal to the maximum transmit power gain that the site equipment can use, or the target transmit power gain is less than the maximum transmit power gain.

[0310] In some embodiments, the target transmit power is a target quantized value among N1 quantized values, where N1 quantized values ​​are obtained by quantizing the maximum transmit power that the site equipment can use to transmit PPDU using DRU, and N1 is a positive integer; or

[0311] The target transmit power gain is the target quantized value among N2 quantized values, which are obtained by quantizing the maximum transmit power gain that the site equipment can use, where N2 is a positive integer.

[0312] In some embodiments, the target transmit power is the transmit power used for data tone and pilot tone in the DRU, or the target transmit power includes a first uplink transmit power and a second uplink transmit power, wherein the first uplink transmit power is the transmit power used by the site equipment to transmit PPDU on the pilot tone in the DRU, and the second uplink transmit power is the transmit power used by the site equipment to transmit PPDU on the data tone in the DRU; or

[0313] The target transmit power gain is the power gain for the data tone and pilot tone in the DRU, or the target transmit power gain includes the power gain for the data tone in the DRU and the power gain for the pilot tone in the DRU.

[0314] In some embodiments, the device 500 further includes:

[0315] The receiving module is configured to receive first indication information from the site device, the first indication information being used to indicate that the site device supports sending PPDU using DRU.

[0316] Optionally, in some embodiments, the aforementioned transmitting or receiving module unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip.

[0317] It should be understood that the apparatus 500 according to the embodiments of this application may correspond to the access point device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the apparatus 500 are respectively for implementing Figure 4 The corresponding processes of the access point devices in the embodiments described herein will not be repeated here for the sake of brevity.

[0318] Figure 6 A schematic block diagram of a wireless communication device 600 according to an embodiment of this application is shown. The wireless communication device 600 can be a site device, or a component within a site device, such as a chip, circuit, or module.

[0319] like Figure 6 As shown, the wireless communication device 600 includes:

[0320] The receiving module 610 is used to obtain target parameters from the access point device;

[0321] The processing module 620 is used to determine the transmit power used by the site equipment to transmit Physical Layer Protocol Data Units (PPDUs) using the Distributed Tone Resource Unit (DRU) based on the target parameters.

[0322] In some embodiments, the target parameter includes at least one of the following:

[0323] The uplink target received power expected by the access point device;

[0324] The site equipment uses the DRU to transmit the base downlink target receive power corresponding to the PPDU;

[0325] The target power offset is used to indicate the power offset of the site equipment transmitting PPDU using DRU relative to the site equipment transmitting PPDU using Continuous Resource Unit.

[0326] In some embodiments, the target parameter includes the uplink target receive power expected by the access point device, which is the expected uplink target receive power of the access point device for transmitting PPDUs on pilot tones and data tones of the site device in the DRU; or...

[0327] The desired uplink target receive power of the access point device includes a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the desired uplink target receive power of the access point device for the site device transmitting PPDUs on the pilot tone in the DRU, and the second uplink target receive power is the desired uplink target receive power of the access point device for the site device transmitting PPDUs on the data tone in the DRU; or

[0328] The uplink target received power expected by the access point device includes a first uplink target received power and a first power offset, wherein the first uplink target received power is the uplink target received power expected by the access point device for the PPDU transmitted by the site device on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or

[0329] The uplink target received power expected by the access point device includes the second uplink target received power and the second power offset, wherein the second uplink target received power is the uplink target received power expected by the access point device for the data tone of the PPDU transmitted by the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

[0330] In some embodiments, the target parameter includes the basic uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU. The basic uplink target receive power is the basic uplink target receive power corresponding to the data tone and pilot tone PPDU transmitted by the site equipment in the DRU. Alternatively, the basic uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes the basic uplink target receive power corresponding to the data tone PPDU transmitted by the site equipment in the DRU and the basic uplink target receive power corresponding to the pilot tone PPDU transmitted by the site equipment in the DRU.

[0331] In some embodiments, the uplink target received power desired by the access point device is indicated by the user information field or the trigger response scheduling (TRS) control field in the trigger frame.

[0332] In some embodiments, the uplink target receive power expected by the access point device is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field.

[0333] In some embodiments, the desired uplink target receive power of the access point device is indicated by M bits in the uplink target receive power field, where M bits include some or all of the bits in the uplink target receive power field, and M is a positive integer.

[0334] In some embodiments, the base uplink target receive power corresponding to the PPDU transmitted by the site device using the DRU includes a first base uplink target receive power. The M bits are used to indicate the first value. The uplink target receive power expected by the access point device is determined based on the first value and the first base uplink target receive power. The first value belongs to a first value range, which is the range of values ​​of the uplink target receive power expected by the access point device for the site device to transmit the PPDU using the Continuous Resource Unit.

[0335] In some embodiments, the M bits are used to indicate a first value, and the uplink target received power expected by the access point device is determined based on the first value, a second basic uplink target received power, and the target power offset. The second basic uplink target received power is the basic uplink target received power used by the site device to transmit PPDUs using Continuous Resource Units; or

[0336] The M bits are used to indicate the first value. The uplink target receive power expected by the access point device is determined based on the first value and the second basic uplink target receive power. The second basic uplink target receive power is the basic uplink target receive power corresponding to the PPDU sent by the site device using the Continuous Resource Unit.

[0337] Wherein, the first value belongs to a first value range, which is the range of values ​​of the expected uplink target received power of the access point device when sending PPDU using Continuous Resource Unit for the site device.

[0338] In some embodiments, the M bits are used to indicate a second value, the uplink target receive power expected by the access point device is determined based on the second value and a second basic uplink target receive power, the second basic uplink target receive power is the basic uplink target receive power corresponding to the PPDU sent by the site device using a continuous resource unit, the second value belongs to a second value range, the second value range is the range of values ​​of the uplink target receive power expected by the access point device for the site device to send a PPDU using a DRU.

[0339] In some embodiments, the basic uplink target receive power corresponding to the PPDU transmitted by the site device using the DRU includes a third basic uplink target receive power. The M bits are used to indicate the third value. The uplink target receive power expected by the access point device is determined based on the third value and the third basic uplink target receive power. The third value belongs to a third value range, which is the range of values ​​for the expected uplink target receive power of the access point device for the PPDU transmitted by the site device using the DRU.

[0340] In some embodiments, the uplink target receive power field is used to indicate a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the expected uplink target receive power of the access point device for transmitting PPDUs for the site device on the pilot tone in the DRU, and the second uplink target receive power is the expected uplink target receive power of the access point device for transmitting PPDUs for the site device on the data tone in the DRU; or

[0341] The uplink target received power field is used to indicate a first uplink target received power and a first power offset, wherein the first uplink target received power is the expected uplink target received power of the access point device for the site device to transmit a PPDU on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or

[0342] The uplink target received power field is used to indicate the second uplink target received power and the second power offset, wherein the second uplink target received power is the expected uplink target received power of the access point device for transmitting PPDUs on the data tone of the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

[0343] In some embodiments, P bits in the uplink target received power field are used to indicate the first uplink target received power, and Q bits in the uplink target received power field are used to indicate the second uplink target received power, where P and Q are positive integers; or

[0344] The P bits in the uplink target received power field are used to indicate the first uplink target received power, and the R bits in the uplink target received power field are used to indicate the first power offset, where P and R are positive integers; or

[0345] The S bits in the uplink target received power field are used to indicate the second uplink target received power, and the Q bits in the uplink target received power field are used to indicate the second power offset, where S and Q are positive integers.

[0346] In some embodiments, the base uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes a fourth base uplink target receive power and / or a fifth base uplink target receive power, wherein the fourth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the pilot tone in the DRU, and the fifth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the data tone in the DRU;

[0347] Wherein, the P bits are used to indicate the fourth value, the Q bits are used to indicate the fifth value, the R bits are used to indicate the first power offset, and the Q bits are used to indicate the second power offset. The first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power; or

[0348] The first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the first uplink target received power and the first power offset; or

[0349] The second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power, and the first uplink target received power is determined based on the second uplink target received power and the second power offset.

[0350] In some embodiments, the target power offset is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field.

[0351] In some embodiments, the target parameters are determined based on the target transmit power or the target transmit power gain;

[0352] Wherein, the target transmit power is the transmit power that the access point device expects the site device to use when sending PPDU using DRU;

[0353] Wherein, the target transmit power gain is the gain of the transmit power that the access point device expects the site device to use to transmit PPDU using DRU, relative to the transmit power that the access point device expects the site device to use to transmit PPDU using Continuous Resource Unit.

[0354] In some embodiments, the target transmit power or the target transmit power gain is associated with at least one of the following:

[0355] The number of tones occupied by DRU per MHz bandwidth;

[0356] DRU dimensions;

[0357] Distributed bandwidth of DRU.

[0358] In some embodiments, the target transmit power is equal to the maximum transmit power that the site equipment can use to transmit PPDUs using a DRU, or the target transmit power is less than the maximum transmit power; or

[0359] The target transmit power gain is equal to the maximum transmit power gain that the site equipment can use, or the target transmit power gain is less than the maximum transmit power gain.

[0360] In some embodiments, the target transmit power is a target quantized value among N1 quantized values, where N1 quantized values ​​are obtained by quantizing the maximum transmit power that the site equipment can use to transmit PPDU using DRU, and N1 is a positive integer; or

[0361] The target transmit power gain is the target quantized value among N2 quantized values, which are obtained by quantizing the maximum transmit power gain that the site equipment can use, where N2 is a positive integer.

[0362] In some embodiments, the target transmit power is the transmit power used for data tone and pilot tone in the DRU, or the target transmit power includes a first uplink transmit power and a second uplink transmit power, wherein the first uplink transmit power is the transmit power used by the site equipment to transmit PPDU on the pilot tone in the DRU, and the second uplink transmit power is the transmit power used by the site equipment to transmit PPDU on the data tone in the DRU; or

[0363] The target transmit power gain is the power gain for the data tone and pilot tone in the DRU, or the target transmit power gain includes the power gain for the data tone in the DRU and the power gain for the pilot tone in the DRU.

[0364] In some embodiments, the device 600 further includes:

[0365] The sending module is used to send first indication information to the access point device, the first indication information being used to indicate that the site device supports sending PPDU using DRU.

[0366] Optionally, in some embodiments, the aforementioned transmitting or receiving module may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip.

[0367] It should be understood that the apparatus 600 according to the embodiments of this application may correspond to the site device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the apparatus 600 are respectively for implementing Figure 4 The corresponding processes of the site devices in the method embodiment shown are not described in detail here for the sake of brevity.

[0368] Figure 7 This is a schematic structural diagram of a communication device 700 provided in an embodiment of this application. Figure 7 The communication device 700 shown includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0369] Optionally, such as Figure 7As shown, the communication device 700 may further include a memory 720. The processor 710 can call and run a computer program from the memory 720 to implement the methods in the embodiments of this application. For example, when the communication device 700 is a station device, the processor 710 can call and run a computer program from the memory 720 to implement the various steps of the method embodiments executed by the station device, achieving the same technical effect. When the communication device 700 is an access point device, the processor 710 can call and run a computer program from the memory 720 to implement the various steps of the method embodiments executed by the access point device, achieving the same technical effect.

[0370] Alternatively, the memory 720 may be a separate device independent of the processor 710, or it may be integrated into the processor 710.

[0371] Optionally, such as Figure 7 As shown, the communication device 700 may also include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0372] Optionally, transceiver 730 may include a transmitter and a receiver. Transceiver 730 may further include antennas, and the number of antennas may be one or more.

[0373] Figure 8 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 8 The chip 800 shown includes a processor 810, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0374] Optionally, such as Figure 8 As shown, chip 800 may further include memory 820. Processor 810 can retrieve and run computer programs from memory 820 to implement the methods described in this embodiment.

[0375] Alternatively, the memory 820 may be a separate device independent of the processor 810, or it may be integrated into the processor 810.

[0376] Optionally, the chip 800 may also include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips, for example, to acquire information or data sent by other devices or chips.

[0377] Optionally, the chip 800 may also include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips, for example, to output information or data to other devices or chips.

[0378] Optionally, the chip can be applied to the access point device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network access point device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0379] Optionally, the chip can be applied to the site device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the site device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0380] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0381] Figure 9 This is a schematic block diagram of a communication system 900 provided in an embodiment of this application. Figure 9 As shown, the communication system 900 includes a site device 910 and an access point device 920.

[0382] The site device 910 can be used to implement the corresponding functions implemented by the site device in the above method, and the access point device 920 can be used to implement the corresponding functions implemented by the access point device in the above method. For the sake of brevity, these will not be elaborated here.

[0383] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0384] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0385] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0386] This application also provides a readable storage medium storing a computer program that, when executed by a processor, implements the various processes of the above method embodiments.

[0387] Optionally, the readable storage medium can be applied to the access point device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0388] Optionally, the readable storage medium can be applied to the site device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the site device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0389] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the various processes of the above-described method embodiments.

[0390] Optionally, the computer program product can be applied to the access point device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0391] Optionally, the computer program product can be applied to the site device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the site device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0392] This application also provides a computer program. When executed by a processor, this computer program implements the various processes of the above-described method embodiments.

[0393] Optionally, the computer program can be applied to the access point device in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the access point device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0394] Optionally, the computer program can be applied to the site device in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the site device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0395] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0396] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0397] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0398] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0399] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0400] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0401] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A power configuration method, characterized in that, include: The access point device indicates target parameters to the site device, the target parameters being used to determine the transmit power of the site device when transmitting Physical Layer Protocol Data Units (PPDUs) using a Distributed Tone Resource Unit (DRU).

2. The method according to claim 1, characterized in that, The target parameter includes at least one of the following: The uplink target received power expected by the access point device; The site equipment uses the DRU to transmit the base downlink target receive power corresponding to the PPDU; The target power offset is used to indicate the power offset of the site equipment transmitting PPDU using DRU relative to the site equipment transmitting PPDU using Continuous Resource Unit.

3. The method according to claim 2, characterized in that, The target parameters include the uplink target receive power expected by the access point device, which is the expected uplink target receive power of the access point device for transmitting PPDUs on the pilot tone and data tone of the site device in the DRU; or... The desired uplink target received power of the access point device includes a first uplink target received power and a second uplink target received power, wherein the first uplink target received power is the desired uplink target received power of the access point device for the site device transmitting PPDUs on the pilot tone in the DRU, and the second uplink target received power is the desired uplink target received power of the access point device for the site device transmitting PPDUs on the data tone in the DRU; or the desired uplink target received power of the access point device includes a first uplink target received power and a first power offset, wherein the first uplink target received power is the desired uplink target received power of the access point device. For the site device transmitting a PPDU on the pilot tone in the DRU, the expected uplink target received power is defined as follows: the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or, the expected uplink target received power of the access point device includes the second uplink target received power and the second power offset, wherein the second uplink target received power is the expected uplink target received power of the access point device for the site device transmitting a PPDU on the data tone in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

4. The method according to claim 2 or 3, characterized in that, The target parameters include the basic downlink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU. The basic downlink target receive power is the basic downlink target receive power corresponding to the data tone and pilot tone transmitted by the site equipment in the DRU. Alternatively, the basic downlink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes the basic downlink target receive power corresponding to the data tone transmitted by the site equipment in the DRU and the basic downlink target receive power corresponding to the pilot tone transmitted by the site equipment in the DRU.

5. The method according to any one of claims 2-4, characterized in that, The desired uplink target received power of the access point device is indicated by the user information field or the trigger response scheduling (TRS) control field in the trigger frame, wherein the trigger frame is used to trigger the transmission of the PPDU.

6. The method according to claim 5, characterized in that, The uplink target receive power expected by the access point device is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field.

7. The method according to claim 6, characterized in that, The desired uplink target received power of the access point device is indicated by M bits in the uplink target received power field, where M bits include some or all of the bits in the uplink target received power field, and M is a positive integer.

8. The method according to claim 7, characterized in that, The site equipment uses DRU to send PPDU, and the corresponding basic uplink target receive power includes a first basic uplink target receive power. The M bits are used to indicate the first value. The uplink target receive power expected by the access point equipment is determined based on the first value and the first basic uplink target receive power. The first value belongs to a first value range, which is the range of values ​​of the uplink target receive power expected by the access point equipment for the site equipment to send PPDU using Continuous Resource Unit.

9. The method according to claim 7, characterized in that, The M bits are used to indicate a first value. The desired uplink target receive power of the access point device is determined based on the first value, a second basic uplink target receive power, and the target power offset. The second basic uplink target receive power is the basic uplink target receive power used by the site device to transmit PPDUs using Continuous Resource Units; or The M bits are used to indicate the first value. The uplink target receive power expected by the access point device is determined based on the first value and the second basic uplink target receive power. The second basic uplink target receive power is the basic uplink target receive power corresponding to the PPDU sent by the site device using the Continuous Resource Unit. Wherein, the first value belongs to a first value range, which is the range of values ​​of the expected uplink target received power of the access point device when sending PPDU using Continuous Resource Unit for the site device.

10. The method according to claim 7, characterized in that, The M bits are used to indicate the second value. The uplink target received power expected by the access point device is determined based on the second value and the second basic uplink target received power. The second basic uplink target received power is the basic uplink target received power corresponding to the PPDU sent by the site device using the Continuous Resource Unit. The second value belongs to a second value range, which is the range of values ​​of the uplink target received power expected by the access point device for the site device to send the PPDU using the DRU.

11. The method according to claim 7, characterized in that, The basic uplink target received power corresponding to the PPDU sent by the site equipment using DRU includes a third basic uplink target received power. The M bits are used to indicate the third value. The uplink target received power expected by the access point equipment is determined based on the third value and the third basic uplink target received power. The third value belongs to a third value range. The third value range is the range of values ​​of the uplink target received power expected by the access point equipment for the PPDU sent by the site equipment using DRU.

12. The method according to claim 7, characterized in that, The uplink target receive power field is used to indicate a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the expected uplink target receive power of the access point device for the site device to transmit PPDUs on the pilot tone in the DRU, and the second uplink target receive power is the expected uplink target receive power of the access point device for the site device to transmit PPDUs on the data tone in the DRU; or The uplink target received power field is used to indicate a first uplink target received power and a first power offset, wherein the first uplink target received power is the expected uplink target received power of the access point device for the site device to transmit a PPDU on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or The uplink target received power field is used to indicate the second uplink target received power and the second power offset, wherein the second uplink target received power is the expected uplink target received power of the access point device for transmitting PPDUs on the data tone of the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

13. The method according to claim 12, characterized in that, The P bits in the uplink target received power field are used to indicate the first uplink target received power, and the Q bits in the uplink target received power field are used to indicate the second uplink target received power, where P and Q are positive integers; or The P bits in the uplink target received power field are used to indicate the first uplink target received power, and the R bits in the uplink target received power field are used to indicate the first power offset, where P and R are positive integers; or The S bits in the uplink target received power field are used to indicate the second uplink target received power, and the Q bits in the uplink target received power field are used to indicate the second power offset, where S and Q are positive integers.

14. The method according to claim 13, characterized in that, The base uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes a fourth base uplink target receive power and / or a fifth base uplink target receive power, wherein the fourth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the pilot tone in the DRU, and the fifth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the data tone in the DRU; Wherein, P bits are used to indicate a fourth value, Q bits are used to indicate a fifth value, R bits are used to indicate a first power offset, Q bits are used to indicate a second power offset, the first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power; or The first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the first uplink target received power and the first power offset; or The second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power, and the first uplink target received power is determined based on the second uplink target received power and the second power offset.

15. The method according to any one of claims 2-14, characterized in that, The target power offset is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field. The trigger frame is used to trigger the transmission of the PPDU.

16. The method according to any one of claims 1-15, characterized in that, The target parameters are determined based on the target transmit power or the target transmit power gain; Wherein, the target transmit power is the transmit power that the access point device expects the site device to use when sending PPDU using DRU; Wherein, the target transmit power gain is the gain of the transmit power that the access point device expects the site device to use to transmit PPDU using DRU, relative to the transmit power that the access point device expects the site device to use to transmit PPDU using Continuous Resource Unit.

17. The method according to claim 16, characterized in that, The target transmit power or the target transmit power gain is associated with at least one of the following: The number of tones occupied by DRU per MHz bandwidth; DRU dimensions; Distributed bandwidth of DRU.

18. The method according to claim 16 or 17, characterized in that, The target transmit power is equal to the maximum transmit power that the site equipment can use to transmit PPDU using DRU, or the target transmit power is less than the maximum transmit power; or The target transmit power gain is equal to the maximum transmit power gain that the site equipment can use, or the target transmit power gain is less than the maximum transmit power gain.

19. The method according to any one of claims 16-18, characterized in that, The target transmit power is the target quantized value among N1 quantized values, where N1 quantized values ​​are obtained by quantizing the maximum transmit power that the site equipment can use to transmit PPDU using DRU, and N1 is a positive integer; or The target transmit power gain is the target quantized value among N2 quantized values, which are obtained by quantizing the maximum transmit power gain that the site equipment can use, where N2 is a positive integer.

20. The method according to any one of claims 16-19, characterized in that, The target transmit power is the transmit power used for the data tone and pilot tone in the DRU, or the target transmit power includes a first uplink transmit power and a second uplink transmit power, wherein the first uplink transmit power is the transmit power used by the site equipment to transmit PPDUs on the pilot tone in the DRU, and the second uplink transmit power is the transmit power used by the site equipment to transmit PPDUs on the data tone in the DRU; or The target transmit power gain is the power gain for the data tone and pilot tone in the DRU, or the target transmit power gain includes the power gain for the data tone in the DRU and the power gain for the pilot tone in the DRU.

21. The method according to any one of claims 1-20, characterized in that, The method further includes: The access point device receives first indication information from the site device, the first indication information being used to indicate that the site device supports sending PPDU using DRU.

22. A power configuration method, characterized in that, The method includes: The site equipment obtains the target parameters from the access point equipment; The site equipment determines the transmit power used by the site equipment to transmit Physical Layer Protocol Data Units (PPDUs) using the Distributed Tone Resource Unit (DRU) based on the target parameters.

23. The method according to claim 22, characterized in that, The target parameter includes at least one of the following: The uplink target received power expected by the access point device; The site equipment uses the DRU to transmit the base downlink target receive power corresponding to the PPDU; The target power offset is used to indicate the power offset of the site equipment transmitting PPDU using DRU relative to the site equipment transmitting PPDU using Continuous Resource Unit.

24. The method according to claim 23, characterized in that, The target parameters include the uplink target receive power expected by the access point device, which is the expected uplink target receive power of the access point device for transmitting PPDUs on the pilot tone and data tone of the site device in the DRU; or... The desired uplink target receive power of the access point device includes a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the desired uplink target receive power of the access point device for the site device transmitting PPDUs on the pilot tone in the DRU, and the second uplink target receive power is the desired uplink target receive power of the access point device for the site device transmitting PPDUs on the data tone in the DRU; or The uplink target received power expected by the access point device includes a first uplink target received power and a first power offset, wherein the first uplink target received power is the uplink target received power expected by the access point device for the PPDU transmitted by the site device on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or The uplink target received power expected by the access point device includes the second uplink target received power and the second power offset, wherein the second uplink target received power is the uplink target received power expected by the access point device for the data tone of the PPDU transmitted by the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

25. The method according to claim 23 or 24, characterized in that, The target parameters include the basic downlink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU. The basic downlink target receive power is the basic downlink target receive power corresponding to the data tone and pilot tone transmitted by the site equipment in the DRU. Alternatively, the basic downlink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes the basic downlink target receive power corresponding to the data tone transmitted by the site equipment in the DRU and the basic downlink target receive power corresponding to the pilot tone transmitted by the site equipment in the DRU.

26. The method according to any one of claims 23-25, characterized in that, The desired uplink target received power of the access point device is indicated by the user information field or the trigger response scheduling (TRS) control field in the trigger frame, which is used to trigger the transmission of the PPDU.

27. The method according to claim 26, characterized in that, The uplink target receive power expected by the access point device is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field.

28. The method according to claim 27, characterized in that, The desired uplink target received power of the access point device is indicated by M bits in the uplink target received power field, where M bits include some or all of the bits in the uplink target received power field, and M is a positive integer.

29. The method according to claim 28, characterized in that, The site equipment uses DRU to send PPDU, and the corresponding basic uplink target receive power includes a first basic uplink target receive power. The M bits are used to indicate the first value. The uplink target receive power expected by the access point equipment is determined based on the first value and the first basic uplink target receive power. The first value belongs to a first value range, which is the range of values ​​of the uplink target receive power expected by the access point equipment for the site equipment to send PPDU using Continuous Resource Unit.

30. The method according to claim 28, characterized in that, The M bits are used to indicate a first value. The desired uplink target receive power of the access point device is determined based on the first value, a second basic uplink target receive power, and the target power offset. The second basic uplink target receive power is the basic uplink target receive power used by the site device to transmit PPDUs using Continuous Resource Units; or The M bits are used to indicate the first value. The uplink target receive power expected by the access point device is determined based on the first value and the second basic uplink target receive power. The second basic uplink target receive power is the basic uplink target receive power corresponding to the PPDU sent by the site device using the Continuous Resource Unit. Wherein, the first value belongs to a first value range, which is the range of values ​​of the expected uplink target received power of the access point device when sending PPDU using Continuous Resource Unit for the site device.

31. The method according to claim 28, characterized in that, The M bits are used to indicate the second value. The uplink target received power expected by the access point device is determined based on the second value and the second basic uplink target received power. The second basic uplink target received power is the basic uplink target received power corresponding to the PPDU sent by the site device using the Continuous Resource Unit. The second value belongs to a second value range, which is the range of values ​​of the uplink target received power expected by the access point device for the site device to send the PPDU using the DRU.

32. The method according to claim 28, characterized in that, The basic uplink target received power corresponding to the PPDU sent by the site equipment using DRU includes a third basic uplink target received power. The M bits are used to indicate the third value. The uplink target received power expected by the access point equipment is determined based on the third value and the third basic uplink target received power. The third value belongs to a third value range. The third value range is the range of values ​​of the uplink target received power expected by the access point equipment for the PPDU sent by the site equipment using DRU.

33. The method according to claim 28, characterized in that, The uplink target receive power field is used to indicate a first uplink target receive power and a second uplink target receive power, wherein the first uplink target receive power is the expected uplink target receive power of the access point device for the site device to transmit PPDUs on the pilot tone in the DRU, and the second uplink target receive power is the expected uplink target receive power of the access point device for the site device to transmit PPDUs on the data tone in the DRU; or The uplink target received power field is used to indicate a first uplink target received power and a first power offset, wherein the first uplink target received power is the expected uplink target received power of the access point device for the site device to transmit a PPDU on the pilot tone in the DRU, and the first power offset is the offset of the second uplink target received power relative to the first uplink target received power; or The uplink target received power field is used to indicate the second uplink target received power and the second power offset, wherein the second uplink target received power is the expected uplink target received power of the access point device for transmitting PPDUs on the data tone of the site device in the DRU, and the second power offset is the offset of the first uplink target received power relative to the second uplink target received power.

34. The method according to claim 33, characterized in that, The P bits in the uplink target received power field are used to indicate the first uplink target received power, and the Q bits in the uplink target received power field are used to indicate the second uplink target received power, where P and Q are positive integers; or The P bits in the uplink target received power field are used to indicate the first uplink target received power, and the R bits in the uplink target received power field are used to indicate the first power offset, where P and R are positive integers; or The S bits in the uplink target received power field are used to indicate the second uplink target received power, and the Q bits in the uplink target received power field are used to indicate the second power offset, where S and Q are positive integers.

35. The method according to claim 34, characterized in that, The base uplink target receive power corresponding to the PPDU transmitted by the site equipment using the DRU includes a fourth base uplink target receive power and / or a fifth base uplink target receive power, wherein the fourth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the pilot tone in the DRU, and the fifth base uplink target receive power is the base uplink target receive power corresponding to the PPDU transmitted by the site equipment on the data tone in the DRU; Wherein, the P bits are used to indicate the fourth value, the Q bits are used to indicate the fifth value, the R bits are used to indicate the first power offset, and the Q bits are used to indicate the second power offset. The first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power; or The first uplink target received power is determined based on the fourth value and the fourth basic uplink target received power, and the second uplink target received power is determined based on the first uplink target received power and the first power offset; or The second uplink target received power is determined based on the fifth value and the fifth basic uplink target received power, and the first uplink target received power is determined based on the second uplink target received power and the second power offset.

36. The method according to any one of claims 23-35, characterized in that, The target power offset is indicated by the uplink target receive power field in the user information field of the trigger frame, or by the uplink target receive power field in the TRS control field. The trigger frame is used to trigger the transmission of the PPDU.

37. The method according to any one of claims 22-36, characterized in that, The target parameters are determined based on the target transmit power or the target transmit power gain; Wherein, the target transmit power is the transmit power that the access point device expects the site device to use when sending PPDU using DRU; Wherein, the target transmit power gain is the gain of the transmit power that the access point device expects the site device to use to transmit PPDU using DRU, relative to the transmit power that the access point device expects the site device to use to transmit PPDU using Continuous Resource Unit.

38. The method according to claim 37, characterized in that, The target transmit power or the target transmit power gain is associated with at least one of the following: The number of tones occupied by DRU per MHz bandwidth; DRU dimensions; Distributed bandwidth of DRU.

39. The method according to claim 37 or 38, characterized in that, The target transmit power is equal to the maximum transmit power that the site equipment can use to transmit PPDU using DRU, or the target transmit power is less than the maximum transmit power; or The target transmit power gain is equal to the maximum transmit power gain that the site equipment can use, or the target transmit power gain is less than the maximum transmit power gain.

40. The method according to any one of claims 37-39, characterized in that, The target transmit power is the target quantized value among N1 quantized values, where N1 quantized values ​​are obtained by quantizing the maximum transmit power that the site equipment can use to transmit PPDU using DRU, and N1 is a positive integer; or The target transmit power gain is the target quantized value among N2 quantized values, which are obtained by quantizing the maximum transmit power gain that the site equipment can use, where N2 is a positive integer.

41. The method according to any one of claims 37-40, characterized in that, The target transmit power is the transmit power used for the data tone and pilot tone in the DRU, or the target transmit power includes a first uplink transmit power and a second uplink transmit power, wherein the first uplink transmit power is the transmit power used by the site equipment to transmit PPDUs on the pilot tone in the DRU, and the second uplink transmit power is the transmit power used by the site equipment to transmit PPDUs on the data tone in the DRU; or The target transmit power gain is the power gain for the data tone and pilot tone in the DRU, or the target transmit power gain includes the power gain for the data tone in the DRU and the power gain for the pilot tone in the DRU.

42. The method according to any one of claims 22-41, characterized in that, The method further includes: The site device sends a first indication message to the access point device, the first indication message being used to indicate that the site device supports sending PPDU using DRU.

43. A wireless communication device, characterized in that, include: The transmitting module is used to indicate target parameters to the site equipment, the target parameters being used to determine the transmit power of the site equipment when transmitting Physical Layer Protocol Data Units (PPDUs) using a Distributed Tone Resource Unit (DRU).

44. A wireless communication device, characterized in that, include: The receiving module is used to obtain target parameters from the access point device; The processing module is used to determine the transmit power used by the site equipment to transmit Physical Layer Protocol Data Units (PPDUs) using a Distributed Tone Resource Unit (DRU) based on the target parameters.

45. A communication device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as claimed in any one of claims 1 to 21, or the method as claimed in any one of claims 22 to 42.

46. ​​A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 21, or the method as claimed in any one of claims 22 to 42.

47. A readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 21, or the method as claimed in any one of claims 22 to 42.

Images