Method for indicating power and communication device

Abstract

The embodiment of the invention is applied to a wireless local area network system supporting an IEEE (Institute of Electrical and Electronic Engineers) 802.11 ax next generation Wi-Fi protocol, such as 802.1 lbe, Wi-Fi 7 or EHT, and then 802.11 series protocols such as 802.11 be next generation, Wi-Fi 8, UHR, Wi-Fi AI and the like, and can also be applied to a UWB-based wireless personal local area network system, a sensing system and the like. The embodiment of the invention provides a method for indicating power and a communication device, in the method, a sending end device generates a first frame comprising N pieces of first information, the N pieces of first information can indicate the maximum sending PSD corresponding to two BSS operation channel bandwidths, different types of receiving end devices can obtain the maximum sending PSD corresponding to the BSS operation channel bandwidths of the receiving end devices, and the maximum sending PSD can indicate the maximum sending PSD corresponding to the BSS operation channel bandwidths of the receiving end devices in the BSS operation channel bandwidths of the receiving end devices in the BSS operation channel bandwidths of the receiving end devices in the BSS operation channel bandwidths of the receiving end devices. Therefore, under the condition that the maximum sending PSD corresponding to the bandwidth of the two BSS operation channels is reliably indicated, the transmission overhead is saved.

Description

A method for indicating power and a communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on November 29, 2022, with application number 202211510868.7 and application name “A method and communication device for indicating power”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and more particularly, to a method for indicating power and a communication device. Background Art

[0003] When stations in a basic service set (BSS) communicate with each other, access point (AP) stations can notify all non-AP STAs (none access point stations) of the maximum power spectral density (PSD) applicable to the BSS operating channel. For example, the AP can broadcast a beacon frame or a probe response frame carrying a transmit power envelope element. Each non-AP STA can then determine the maximum transmit PSD corresponding to its own BSS operating channel bandwidth based on the transmit power envelope element.

[0004] However, in the current protocol, the design of the transmit power envelope element is based on non-extremely high throughput (EHT) sites. That is, the current transmit power envelope element can only indicate the maximum transmit PSD corresponding to a continuous small bandwidth, such as 20, 40, or 80 MHz bandwidth. In other words, it can indicate the maximum transmit PSD corresponding to the operating channel bandwidth of a non-EHT BSS, but cannot indicate the maximum transmit PSD corresponding to the operating channel bandwidth of an ETH BSS.

[0005] To indicate the maximum transmit PSD corresponding to the ETH BSS operating channel bandwidth, one current method is for the AP to broadcast another element indicating the maximum transmit PSD corresponding to the ETH BSS operating channel bandwidth. However, this method may cause confusion for non-ETH stations. For example, when a non-ETH station receives an element indicating the transmit power limit of the ETH BSS operating channel bandwidth, it may mistakenly believe that this element is used to replace the previously received element indicating the transmit power limit of the non-ETH BSS operating channel bandwidth. In addition, this method also incurs a large amount of transmission overhead. Therefore, there is an urgent need for a power indication method and communication device that can reliably indicate the maximum transmit PSD corresponding to two BSS operating channel bandwidths while saving transmission overhead.

[0006] Summary of the Invention

[0007] The present application provides a method and a communication device for indicating power, which can save transmission overhead while reliably indicating the maximum transmit PSD corresponding to two BSS operating channel bandwidths.

[0008] In a first aspect, a communication method is provided. The method may be executed by a transmitter, or by a chip or circuit configured in a transmitter device, which is not limited in this application. For ease of description, the following description is based on an example of execution by a transmitter device.

[0009] The method may include: generating a first frame, the first frame including a first element, the first element including N first information, the N first information being respectively used to indicate the maximum transmit power spectral density PSD corresponding to N basic channels, the first X basic channels of the N basic channels corresponding to the basic channels within the first basic service set operating channel bandwidth, the X+1th basic channel to the Nth basic channel of the N basic channels being other basic channels in the indication bandwidth excluding the X basic channels, wherein the indication bandwidth is related to the value of N and the bandwidth of the second basic service set operating channel, the bandwidth of the second basic service set operating channel is different from the bandwidth of the first basic service set operating channel, wherein N and X are positive integers and N is greater than X; and sending the first frame.

[0010] Based on the present technical solution, N first information are designed by defining an indication bandwidth, so that the N first information can simultaneously indicate the maximum transmit PSD corresponding to the basic channel within the bandwidths of two BSS operating channels. Different types of receiving end devices, such as EHT sites and non-EHT sites, can obtain the maximum transmit PSD corresponding to the basic channel within their own BSS operating channel bandwidth based on the N first information. This solution does not need to additionally define multiple frames or elements to indicate the maximum transmit PSD corresponding to the basic channel within different BSS operating channel bandwidths, saving transmission overhead while achieving reliable indication of the maximum transmit PSD corresponding to the two BSS operating channel bandwidths.

[0011] It should be noted that the above-mentioned first basic service set operating channel bandwidth is different from the second basic service set operating channel bandwidth, which may mean that the size of the first basic service set operating channel bandwidth is different from the size of the second basic service set operating channel bandwidth, or the number of basic channels within the first basic service set operating channel bandwidth is different from the number of basic channels within the second basic service set operating channel bandwidth. For example, the first basic service set operating channel bandwidth is a 40MHz bandwidth including 2 basic channels, and the second basic service set operating channel bandwidth is a 320MHz bandwidth including 16 basic channels.

[0012] In combination with the first aspect, in some implementations of the first aspect, the basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the first X first information among the N first information are sorted in order from low to high according to the frequencies of the corresponding basic channels.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the X+1th first information to the Nth first information among the N first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0015] Based on this technical solution, by sorting the first information, the receiving end can determine the maximum transmit PSD corresponding to the basic channel according to the position of the first information, without the need for additional bits to indicate the specific correspondence between the basic channel and the first information, thereby further saving transmission overhead.

[0016] In combination with the first aspect, in some implementations of the first aspect, N is equal to a first value, indicating that the bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0017] In combination with the first aspect, in certain implementations of the first aspect, N is less than a first value, and the indicated bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where Z is equal to N multiplied by the basic channel bandwidth, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0018] In combination with the first aspect, in certain implementations of the first aspect, N is greater than a first value, indicating that the bandwidth is greater than the second basic service set operating channel bandwidth, and the first Y first information among the N first information are used to indicate the maximum transmit PSD corresponding to the Y basic channels included in the second basic service set operating channel bandwidth, where Y is a positive integer, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0019] Based on this technical solution, the receiving device can interpret the first information based on different values ​​of N to obtain the maximum transmit PSD corresponding to the basic channel within its own BSS operating channel bandwidth, and the indication method is flexible.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the Y+1th first information to the Nth first information among the N first information are retained.

[0021] In combination with the first aspect, in some implementations of the first aspect, the bandwidth of the basic channel is 20 MHz.

[0022] In combination with the first aspect, in some implementations of the first aspect, the first element further includes a maximum transmit power number field, where the maximum transmit power number field is used to indicate a value of N.

[0023] In combination with the first aspect, in some implementations of the first aspect, the first element also includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

[0024] In combination with the first aspect, in some implementations of the first aspect, the first element is a transmit power envelope element.

[0025] In combination with the first aspect, in some implementations of the first aspect, the first basic service set operating channel bandwidth is a non-extremely high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

[0026] In combination with the first aspect, in some implementations of the first aspect, the value of N is 2 to the power of n, and n is an integer greater than or equal to 0.

[0027] In a second aspect, a communication method is provided. The method may be executed by a receiving end, or may be executed by a chip or circuit configured in a receiving end device, which is not limited in this application. For ease of description, the following description is based on an example of execution by a first receiving end device.

[0028] The method includes: receiving a first frame, the first frame including a first element, the first element including N first information, the N first information being respectively used to indicate maximum transmit power spectrum density (PSD) corresponding to N basic channels, the first X basic channels of the N basic channels corresponding to basic channels within a first basic service set operating channel bandwidth, the X+1th basic channel to the Nth basic channel of the N basic channels being other basic channels excluding the X basic channels in the indication bandwidth, wherein the indication bandwidth is related to the value of N and to the bandwidth of a second basic service set operating channel, the bandwidth of the second basic service set operating channel being different from the bandwidth of the first basic service set operating channel, wherein N and X are positive integers and N is greater than X; and determining, based on the first frame, the maximum transmit PSD corresponding to the basic channels within the bandwidth of the second basic service set operating channel.

[0029] The various implementations of the second aspect are methods of the first receiving end device corresponding to the various implementations of the first aspect. The technical effects of the various implementations can be found in the description of the first aspect and will not be repeated here.

[0030] In combination with the second aspect, in some implementations of the second aspect, the basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

[0031] In combination with the second aspect, in certain implementations of the second aspect, the first X first information among the N first information are sorted in order from low to high according to the frequencies of the corresponding basic channels.

[0032] In combination with the second aspect, in certain implementations of the second aspect, the X+1th first information to the Nth first information among the N first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0033] In combination with the second aspect, in some implementations of the second aspect, N is equal to a first value, indicating that the bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0034] In combination with the second aspect, in certain implementations of the second aspect, N is less than a first value, and the indicated bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where Z is equal to N multiplied by the basic channel bandwidth, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0035] In combination with the second aspect, in certain implementations of the second aspect, N is greater than the first value, indicating that the bandwidth is greater than the second basic service set operating channel bandwidth, and the first Y first information among the N first information are used to indicate the maximum transmit PSD corresponding to the Y basic channels included in the second basic service set operating channel bandwidth, where Y is a positive integer, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0036] In combination with the second aspect, in certain implementations of the second aspect, the Y+1th first information to the Nth first information among the N first information are retained.

[0037] In combination with the second aspect, in some implementations of the second aspect, the bandwidth of the basic channel is 20 MHz.

[0038] In combination with the second aspect, in some implementations of the second aspect, the first element further includes a maximum transmit power number field, and the maximum transmit power number field is used to indicate the value of N.

[0039] In combination with the second aspect, in some implementations of the second aspect, the first element also includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

[0040] In combination with the second aspect, in some implementations of the second aspect, the first element is a transmit power envelope element.

[0041] In combination with the second aspect, in some implementations of the second aspect, the first basic service set operating channel bandwidth is a non-extremely high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

[0042] In combination with the second aspect, in some implementations of the second aspect, the value of N is 2 to the power of n, and n is an integer greater than or equal to 0.

[0043] In combination with the second aspect, in some implementations of the second aspect, the first receiving device is an EHT site.

[0044] In a third aspect, a communication method is provided. This method can be executed by a receiving end, or by a chip or circuit configured in a receiving end device, although this application does not limit this. For ease of description, the following description is based on an example of execution by a second receiving end device.

[0045] The method includes: receiving a first frame, the first frame including a first element, the first element including N first information, the N first information respectively used to indicate the maximum transmit power spectrum density (PSD) corresponding to N basic channels, the first X basic channels of the N basic channels correspond to the basic channels within the first basic service set operation channel bandwidth, the X+1th basic channel to the Nth basic channel of the N basic channels are other basic channels in the indication bandwidth excluding the X basic channels, wherein the indication bandwidth is related to the value of N and the bandwidth of the second basic service set operation channel, the bandwidth of the second basic service set operation channel is different from the bandwidth of the first basic service set operation channel, wherein N and X are positive integers and N is greater than X; and determining the maximum transmit PSD corresponding to the basic channels within the first basic service set operation channel bandwidth based on the first frame.

[0046] The various implementation methods of the third aspect are methods of the second receiving end device corresponding to the various implementation methods of the first aspect. The technical effects of the various implementation methods can be found in the description of the first aspect and will not be repeated here.

[0047] In combination with the third aspect, in some implementations of the third aspect, the basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

[0048] In combination with the third aspect, in certain implementations of the third aspect, the first X first information among the N first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0049] In combination with the third aspect, in certain implementations of the third aspect, the X+1th first information to the Nth first information among the N first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0050] In combination with the third aspect, in certain implementations of the third aspect, N is equal to a first value, indicating that the bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0051] In combination with the third aspect, in certain implementations of the third aspect, N is less than a first value, and the indicated bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where Z is equal to N multiplied by the basic channel bandwidth, and where the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0052] In combination with the third aspect, in certain implementations of the third aspect, N is greater than the first value, indicating that the bandwidth is greater than the second basic service set operating channel bandwidth, and the first Y first information among the N first information are used to indicate the maximum transmit PSD corresponding to the Y basic channels included in the second basic service set operating channel bandwidth, where Y is a positive integer, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0053] In combination with the third aspect, in certain implementations of the third aspect, the Y+1th first information to the Nth first information among the N first information are retained.

[0054] In combination with the third aspect, in certain implementations of the third aspect, the bandwidth of the basic channel is 20 MHz.

[0055] In combination with the third aspect, in certain implementations of the third aspect, the first element further includes a maximum transmit power number field, and the maximum transmit power number field is used to indicate the value of N.

[0056] In combination with the third aspect, in certain implementations of the third aspect, the first element further includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

[0057] In combination with the third aspect, in some implementations of the third aspect, the first element is a transmit power envelope element.

[0058] In combination with the third aspect, in certain implementations of the third aspect, the first basic service set operating channel bandwidth is a non-extremely high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

[0059] In combination with the third aspect, in certain implementations of the third aspect, the value of N is 2 to the power of n, and n is an integer greater than or equal to 0.

[0060] In combination with the third aspect, in some implementations of the third aspect, the second receiving device is a non-EHT site.

[0061] In a fourth aspect, a communication method is provided. This method can be executed by a transmitter, or by a chip or circuit configured in a transmitter device, although this application does not limit this. For ease of description, the following description uses execution by a transmitter device as an example.

[0062] The method includes: generating a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information are respectively used to indicate the maximum transmit power spectrum density PSD corresponding to P basic channels, the P basic channels are part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information are respectively used to indicate the maximum transmit PSD corresponding to other basic channels of the indicated bandwidth excluding the P basic channels, and the P and Q are positive integers; wherein the indicated bandwidth is related to the value of M and the operating channel bandwidth of the second basic service set, the operating channel bandwidth of the second basic service set is different from the operating channel bandwidth of the first basic service set, the M is equal to the sum of the P and the Q, and the M is a positive integer; the first element also includes third information and fourth information, the third information is used to indicate the value of P, and the fourth information is used to indicate the value of Q; sending the first frame.

[0063] Based on the present technical solution, by defining P first information for indicating the maximum transmit PSD corresponding to part or all basic channels within the first BSS operating channel bandwidth, and by designing the indication bandwidth definition, Q second information is made so that the P first information and the Q second information can indicate the maximum transmit PSD corresponding to part or all basic channels within the second BSS operating channel bandwidth, so that different types of receiving end devices, such as EHT sites and non-EHT sites, can obtain the maximum transmit PSD corresponding to the basic channel within their own BSS operating channel bandwidth based on the first element. This solution does not need to additionally define multiple frames or elements to indicate the maximum transmit PSD corresponding to the basic channel within different BSS operating channel bandwidths. While achieving reliable indication of the maximum transmit PSD corresponding to two BSS operating channel bandwidths, transmission overhead is saved, and the value of P is indicated by the third information. The design of the first information is more flexible, that is, the method of indicating the first BSS operating channel bandwidth is more flexible.

[0064] In combination with the fourth aspect, in certain implementations of the fourth aspect, the basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

[0065] In combination with the fourth aspect, in certain implementations of the fourth aspect, the P first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0066] In combination with the fourth aspect, in certain implementations of the fourth aspect, the Q second information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0067] Based on this technical solution, by sorting the first information and the second information respectively, the receiving end can determine the maximum transmit PSD corresponding to the basic channel according to the positions of the first information and the second information, without the need for additional bits to indicate the specific correspondence between the basic channel and the information, thereby further saving transmission overhead.

[0068] In combination with the fourth aspect, in certain implementations of the fourth aspect, the M is equal to a first value, the indicated bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0069] In combination with the fourth aspect, in certain implementations of the fourth aspect, the M is less than a first value, and the indication bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where the Z is equal to M multiplied by the basic channel bandwidth, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0070] In combination with the fourth aspect, in certain implementations of the fourth aspect, the M is greater than the first value, the indication bandwidth is greater than the second basic service set operating channel bandwidth, and the first S information out of the M information, namely the P first information and the Q second information, are used to respectively indicate the maximum transmit PSD corresponding to the S basic channels included in the second basic service set operating channel bandwidth, and the S is a positive integer, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth, and the S is greater than the P.

[0071] Based on this technical solution, the receiving device can interpret the first information based on different values ​​of N to obtain the maximum transmit PSD corresponding to the basic channel within its own BSS operating channel bandwidth, and the indication method is flexible.

[0072] In combination with the fourth aspect, in certain implementations of the fourth aspect, information from S+1th to P+Qth of the M pieces of information, including the P pieces of first information and the Q pieces of second information, is retained.

[0073] In combination with the fourth aspect, in certain implementations of the fourth aspect, the bandwidth of the basic channel is 20 MHz.

[0074] In combination with the fourth aspect, in certain implementations of the fourth aspect, the first element also includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

[0075] In combination with the fourth aspect, in certain implementations of the fourth aspect, the first element is a transmit power envelope element.

[0076] In combination with the fourth aspect, in certain implementations of the fourth aspect, the first basic service set operating channel bandwidth is a non-extremely high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

[0077] In combination with the fourth aspect, in certain implementations of the fourth aspect, the value of M is 2 to the mth power, and m is an integer greater than or equal to 0.

[0078] In a fifth aspect, a communication method is provided. This method can be executed by a receiving end, or by a chip or circuit configured in a receiving end device, although this application does not limit this. For ease of description, the following description is based on an example of execution by a first receiving end device.

[0079] The method includes: receiving the first frame, the first frame includes a first element, the first element includes P first information and Q second information, the P first information are respectively used to indicate the maximum transmit power spectral density PSD corresponding to P basic channels, the P basic channels are part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information are respectively used to indicate the maximum transmit PSD corresponding to other basic channels of the indicated bandwidth excluding the P basic channels, and the P and the Q are positive integers; the first element also includes third information and fourth information, the third information is used to indicate the value of the P, and the fourth information is used to indicate the value of the Q; wherein the indicated bandwidth is related to the value of M and the second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth is different from the first basic service set operating channel bandwidth, the M is equal to the sum of the P and the Q, and the M is a positive integer; based on the first frame, determining the maximum transmit PSD corresponding to the basic channels within the second basic service set operating channel bandwidth.

[0080] In combination with the fifth aspect, in certain implementations of the fifth aspect, the basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

[0081] In combination with the fifth aspect, in certain implementations of the fifth aspect, the P first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0082] In combination with the fifth aspect, in certain implementations of the fifth aspect, the Q second information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0083] In combination with the fifth aspect, in certain implementations of the fifth aspect, the M is equal to a first value, the indicated bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0084] In combination with the fifth aspect, in certain implementations of the fifth aspect, M is less than a first value, and the indication bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where Z is equal to M multiplied by the basic channel bandwidth, and where the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0085] In combination with the fifth aspect, in certain implementations of the fifth aspect, the M is greater than the first value, the indication bandwidth is greater than the second basic service set operating channel bandwidth, and the first S information out of the M information, namely the P first information and the Q second information, are used to respectively indicate the maximum transmit PSD corresponding to the S basic channels included in the second basic service set operating channel bandwidth, and the S is a positive integer, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth, and the S is greater than the P.

[0086] In combination with the fifth aspect, in certain implementations of the fifth aspect, information from S+1th to P+Qth of the P first information and the Q second information, a total of M information, is retained.

[0087] In combination with the fifth aspect, in certain implementations of the fifth aspect, the bandwidth of the basic channel is 20 MHz.

[0088] In combination with the fifth aspect, in certain implementations of the fifth aspect, the first element also includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

[0089] In combination with the fifth aspect, in certain implementations of the fifth aspect, the first element is a transmit power envelope element.

[0090] In combination with the fifth aspect, in certain implementations of the fifth aspect, the first basic service set operating channel bandwidth is a non-extremely high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

[0091] In combination with the fifth aspect, in certain implementations of the fifth aspect, the value of M is 2 to the mth power, and m is an integer greater than or equal to 0.

[0092] In combination with the fifth aspect, in some implementations of the fifth aspect, the first receiving device is an EHT site.

[0093] In a sixth aspect, a communication method is provided. This method can be executed by a receiving end, or by a chip or circuit configured in a receiving end device, although this application does not limit this. For ease of description, the following description is based on an example of execution by a second receiving end device.

[0094] The method includes: receiving a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information are respectively used to indicate the maximum transmit power spectral density PSD corresponding to P basic channels, the P basic channels are part or all of the basic channels within the bandwidth of a first basic service set operating channel, the Q second information are respectively used to indicate the maximum transmit PSD corresponding to other basic channels except the P basic channels, and P and Q are positive integers; the first element also includes third information and fourth information, the third information is used to indicate the value of P, and the fourth information is used to indicate the value of Q; wherein the indicated bandwidth is related to the value of M and the bandwidth of a second basic service set operating channel, the bandwidth of the second basic service set operating channel is different from the bandwidth of the first basic service set operating channel, M is equal to the sum of P and Q, and M is a positive integer; determining the maximum transmit PSD corresponding to the basic channels within the first basic service set operating channel based on the first frame.

[0095] In combination with the sixth aspect, in certain implementations of the sixth aspect, the basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

[0096] In combination with the sixth aspect, in certain implementations of the sixth aspect, the P first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0097] In combination with the sixth aspect, in certain implementations of the sixth aspect, the Q second information are sorted in order from low to high according to the frequency of the corresponding basic channel.

[0098] In combination with the sixth aspect, in certain implementations of the sixth aspect, the M is equal to a first value, the indicated bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0099] In combination with the sixth aspect, in certain implementations of the sixth aspect, the M is less than a first value, and the indication bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where the Z is equal to M multiplied by the basic channel bandwidth, and where the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

[0100] In combination with the sixth aspect, in certain implementations of the sixth aspect, the M is greater than the first value, the indication bandwidth is greater than the second basic service set operating channel bandwidth, and the first S information out of the M information, namely the P first information and the Q second information, are used to respectively indicate the maximum transmit PSD corresponding to the S basic channels included in the second basic service set operating channel bandwidth, and the S is a positive integer, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth, and the S is greater than the P.

[0101] In combination with the sixth aspect, in certain implementations of the sixth aspect, information from S+1th to P+Qth of the M pieces of information, including the P pieces of first information and the Q pieces of second information, is retained.

[0102] In combination with the sixth aspect, in certain implementations of the sixth aspect, the bandwidth of the basic channel is 20 MHz.

[0103] In combination with the sixth aspect, in certain implementations of the sixth aspect, the first element also includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

[0104] In combination with the sixth aspect, in certain implementations of the sixth aspect, the first element is a transmit power envelope element.

[0105] In combination with the sixth aspect, in certain implementations of the sixth aspect, the first basic service set operating channel bandwidth is a non-extremely high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

[0106] In combination with the sixth aspect, in certain implementations of the sixth aspect, the value of M is 2 to the mth power, and m is an integer greater than or equal to 0.

[0107] In combination with the sixth aspect, in some implementations of the sixth aspect, the first receiving device is an EHT site.

[0108] In the seventh aspect, a communication device is provided, including a processing unit for generating a first frame, the first frame including a first element, the first element including N first information, the N first information respectively used to indicate the maximum transmit power spectral density PSD corresponding to N basic channels, the first X basic channels of the N basic channels correspond to the basic channels within the first basic service set operating channel bandwidth, the X+1th basic channel to the Nth basic channel of the N basic channels are other basic channels in the indication bandwidth excluding the X basic channels, wherein the indication bandwidth is related to the value of N and the second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth is different from the first basic service set operating channel bandwidth, wherein N and X are positive integers and N is greater than X; a communication unit for sending the first frame.

[0109] Various implementations of the seventh aspect are communication devices corresponding to various implementations of the first aspect. The communication device provided by the seventh aspect can execute the first aspect and any possible implementation of the first aspect.

[0110] In an eighth aspect, a communication device is provided, including a communication unit for receiving a first frame, the first frame including a first element, the first element including N first information, the N first information respectively used to indicate the maximum transmit power spectral density PSD corresponding to N basic channels, the first X basic channels of the N basic channels correspond to the basic channels within the first basic service set operating channel bandwidth, the X+1th basic channel to the Nth basic channel of the N basic channels are other basic channels in the indication bandwidth excluding the X basic channels, wherein the indication bandwidth is related to the value of N and to the second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth is different from the first basic service set operating channel bandwidth, wherein N and X are positive integers and N is greater than X; a processing unit for determining the maximum transmit PSD corresponding to the basic channels within the second basic service set operating channel bandwidth based on the first frame.

[0111] Various implementations of the eighth aspect are communication devices corresponding to various implementations of the second aspect. The communication device provided by the eighth aspect can execute the second aspect and any possible implementation of the second aspect.

[0112] In the ninth aspect, a communication device is provided, including a communication unit for receiving a first frame, the first frame including a first element, the first element including N first information, the N first information being respectively used to indicate the maximum transmit power spectral density PSD corresponding to N basic channels, the first X basic channels of the N basic channels correspond to the basic channels within the first basic service set operating channel bandwidth, the X+1th basic channel to the Nth basic channel of the N basic channels are other basic channels in the indication bandwidth excluding the X basic channels, wherein the indication bandwidth is related to the value of N and to the second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth is different from the first basic service set operating channel bandwidth, wherein N and X are positive integers and N is greater than X; a processing unit is used to determine the maximum transmit PSD corresponding to the basic channel within the first basic service set operating channel bandwidth based on the first frame.

[0113] Various implementations of the ninth aspect are communication devices corresponding to various implementations of the third aspect. The communication device provided by the ninth aspect can execute the third aspect and any possible implementation of the third aspect.

[0114] In the tenth aspect, a communication device is provided, including a processing unit for generating a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information are respectively used to indicate the maximum transmit power spectral density PSD corresponding to P basic channels, the P basic channels are part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information are respectively used to indicate the maximum transmit PSD corresponding to other basic channels of the indicated bandwidth excluding the P basic channels, and the P and the Q are positive integers; the first element also includes third information and fourth information, the third information is used to indicate the value of the P, and the fourth information is used to indicate the value of the Q; wherein the indicated bandwidth is related to the value of M and the bandwidth of the second basic service set operating channel, the second basic service set operating channel bandwidth is different from the first basic service set operating channel bandwidth, the M is equal to the sum of the P and the Q, and the M is a positive integer; the communication unit is used to send the first frame.

[0115] Various implementations of the tenth aspect are communication devices corresponding to various implementations of the fourth aspect. The communication device provided by the tenth aspect can execute the fourth aspect and any possible implementation of the fourth aspect.

[0116] In the eleventh aspect, a communication device is provided, including a communication unit for receiving a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information being respectively used to indicate the maximum transmit power spectral density PSD corresponding to P basic channels, the P basic channels being part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information being respectively used to indicate the maximum transmit PSD corresponding to other basic channels excluding the P basic channels within the indicated bandwidth, and the P and the Q being positive integers; the first element also including third information and fourth information, the third information being used to indicate the value of the P, and the fourth information being used to indicate the value of the Q; wherein the indicated bandwidth is related to the value of M and to the second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth being different from the first basic service set operating channel bandwidth, the M being equal to the sum of the P and the Q, and the M being a positive integer; a processing unit being used to determine the maximum transmit PSD corresponding to the basic channels within the second basic service set operating channel bandwidth based on the first frame.

[0117] Various implementations of the eleventh aspect are communication devices corresponding to various implementations of the fifth aspect. The communication device provided by the eleventh aspect can execute the fifth aspect and any possible implementation of the fifth aspect.

[0118] In the twelfth aspect, a communication device is provided, including a communication unit for receiving a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information are respectively used to indicate the maximum transmit power spectral density PSD corresponding to P basic channels, the P basic channels are part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information are respectively used to indicate the maximum transmit PSD corresponding to other basic channels of the indicated bandwidth excluding the P basic channels, and the P and the Q are positive integers; the first element also includes third information and fourth information, the third information is used to indicate the value of the P, and the fourth information is used to indicate the value of the Q; wherein the indicated bandwidth is related to the value of M and the second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth is different from the first basic service set operating channel bandwidth, the M is equal to the sum of the P and the Q, and the M is a positive integer; a processing unit is used to determine the maximum transmit PSD corresponding to the basic channel within the first basic service set operating channel bandwidth based on the first frame.

[0119] Various implementations of the twelfth aspect are communication devices corresponding to various implementations of the sixth aspect. The communication device provided by the twelfth aspect can execute the sixth aspect and any possible implementation of the sixth aspect.

[0120] In a thirteenth aspect, a communication device is provided, wherein the communication device is used to perform the method provided in the first aspect or the fourth aspect. Specifically, the device may include a module for performing the first aspect and any possible implementation of the first aspect or the fourth aspect and any possible implementation of the fourth aspect.

[0121] In a fourteenth aspect, a communication device is provided, wherein the device is used to perform the method provided in the second aspect or the fifth aspect. Specifically, the device may include a module for performing the second aspect and any possible implementation of the second aspect or the fifth aspect and any possible implementation of the fifth aspect.

[0122] In a fifteenth aspect, a communication device is provided, the device being used to indicate the method provided in the third aspect or the sixth aspect. Specifically, the device may include a module for executing the third aspect and any possible implementation of the third aspect or the sixth aspect and any possible implementation of the sixth aspect.

[0123] In a sixteenth aspect, a communication device is provided, comprising a processor. The processor is coupled to a memory and can be configured to execute instructions in the memory to implement the method of the first aspect and any possible implementation of the first aspect, or to implement the method of the fourth aspect and any possible implementation of the fourth aspect. Optionally, the device further comprises a memory. Optionally, the device further comprises a communication interface, the processor being coupled to the communication interface.

[0124] In one implementation, the apparatus is a transmitting end device. When the apparatus is a transmitting end device, the communication interface may be a transceiver, or an input / output interface.

[0125] In another implementation, the apparatus is a chip configured in a transmitting device. When the apparatus is a chip configured in a transmitting device, the communication interface may be a transceiver, or an input / output interface.

[0126] In yet another implementation, the device is a chip or a chip system.

[0127] Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0128] In a seventeenth aspect, a communication device is provided, comprising a processor. The processor is configured to execute instructions in a memory to implement the method of the second aspect and any possible implementation of the second aspect, or to implement the method of the fifth aspect and any possible implementation of the fifth aspect. Optionally, the device further comprises a memory. Optionally, the device further comprises a communication interface, the processor being coupled to the communication interface.

[0129] In one implementation, the apparatus is a receiving device. When the apparatus is a receiving device, the communication interface may be a transceiver, or an input / output interface.

[0130] In another implementation, the apparatus is a chip configured in a receiving device. When the apparatus is a chip configured in a receiving device, the communication interface may be an input / output interface.

[0131] In yet another implementation, the device is a chip or a chip system.

[0132] Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0133] In an eighteenth aspect, a communication device is provided, comprising a processor. The processor may be configured to execute instructions in a memory to implement the method of the third aspect and any possible implementation of the third aspect, or to implement the method of the sixth aspect and any possible implementation of the sixth aspect. Optionally, the device further comprises a memory. Optionally, the device further comprises a communication interface, the processor being coupled to the communication interface.

[0134] In one implementation, the apparatus is a receiving device. When the apparatus is a receiving device, the communication interface may be a transceiver, or an input / output interface.

[0135] In another implementation, the apparatus is a chip configured in a receiving device. When the apparatus is a chip configured in a receiving device, the communication interface may be an input / output interface.

[0136] In yet another implementation, the device is a chip or a chip system.

[0137] Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0138] In the nineteenth aspect, a computer-readable storage medium is provided, on which computer instructions are stored. When the computer instructions are executed by an apparatus, the apparatus implements the method in any one of the first to sixth aspects and any possible implementation of the first to sixth aspects.

[0139] In the twentieth aspect, a computer program product comprising instructions is provided, which contains a computer program. When the computer program is executed by an apparatus, the apparatus implements the method provided in any one of the first to sixth aspects and any possible implementation of the first to sixth aspects.

[0140] In the twenty-first aspect, a communication system is provided, comprising a transmitting device as described above, a first receiving device and a second receiving device.

[0141] Optionally, the first receiving end device is a non-EHT site, and the second receiving end device is an EHT site. BRIEF DESCRIPTION OF THE DRAWINGS

[0142] FIG1 is a schematic diagram of an application scenario applicable to an embodiment of the present application;

[0143] FIG2 is a schematic flow chart of a method for indicating power provided in an embodiment of the present application;

[0144] FIG3 is a schematic structural diagram of a first element provided by an embodiment of the present application;

[0145] FIG4 is a schematic diagram illustrating an indication bandwidth provided in an embodiment of the present application;

[0146] FIG5 is a schematic structural diagram of a second element provided in an embodiment of the present application;

[0147] FIG6 is a schematic flowchart of another method for indicating power provided in an embodiment of the present application;

[0148] FIG7 is a schematic diagram illustrating another bandwidth indication provided by an embodiment of the present application;

[0149] 8 to 10 are schematic structural diagrams of possible communication devices provided in embodiments of the present application. DETAILED DESCRIPTION

[0150] The technical solution in this application will be described below with reference to the accompanying drawings.

[0151] The technical solutions provided in the embodiments of the present application can be applied to wireless local area network (WLAN) scenarios, for example, supporting IEEE 802.11-related standards, such as 802.11a / b / g standards, 802.11n standards, 802.11ac standards, 802.11ax standards, and IEEE 802.11ax next-generation Wi-Fi protocols, such as 802.11be, Wi-Fi 7, extremely high throughput (EHT), 802.11ad, 802.11ay, or 802.11bf, and further such as the next generation of 802.11be and Wi-Fi 8. It can also be applied to wireless personal area network systems based on ultra-wide band (UWB), such as the 802.15 series of standards, and can also be applied to sensing systems, such as the 802.11bf series of standards. The 802.11n standard is known as high throughput (HT), the 802.11ac standard is known as very high throughput (VHT), the 802.11ax standard is known as high efficiency (HE), and the 802.11be standard is known as extremely high throughput (EHT). 802.11bf includes two major standards: low-frequency (Sub-7 GHz) and high-frequency (60 GHz). Sub-7 GHz implementations primarily rely on 802.11ac, 802.11ax, 802.11be, and their next-generation standards, while 60 GHz implementations primarily rely on 802.11ad, 802.11ay, and their next-generation standards. 802.11ad is also known as the directional multi-gigabit (DMG) standard, and 802.11ay is also known as the enhanced directional multi-gigabit (EDMG) standard.

[0152] Although the embodiments of the present application are primarily described using the deployment of a WLAN network, particularly a network using the IEEE 802.11 system standard, as an example, those skilled in the art will readily appreciate that the various aspects of the embodiments of the present application can be extended to other networks using various standards or protocols, such as a high-performance wireless local area network (HIPERLAN), a wireless wide area network (WWAN), a wireless personal area network (WPAN), or other networks now known or developed in the future. Therefore, regardless of the coverage area and wireless access protocol used, the various aspects provided in the embodiments of the present application can be applied to any suitable wireless network.

[0153] The technical solutions of the embodiments of the present application can also be applied to various communication systems, such as: WLAN communication system, wireless fidelity (Wi-Fi) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system or new radio (NR), future sixth generation (6G) system, Internet of Things (IoT) network or vehicle to x (V2X), etc.

[0154] The above-mentioned communication system applicable to the present application is only an example, and the communication system applicable to the present application is not limited to this. It is described uniformly here and will not be repeated below.

[0155] FIG1 is a schematic diagram of an application scenario applicable to an embodiment of the present application. As shown in FIG1 , the resource configuration method provided by the present application is applicable to data communication between stations (STAs), wherein the station can be an access point (AP) type station or a non-access point type station (none access point station, non-AP STA), respectively referred to as AP and non-AP station. Specifically, the scheme of the present application is applicable to data communication between an AP and one or more non-AP stations (for example, data communication between AP1 and non-AP STA1, non-AP STA2), and is also applicable to data communication between APs (for example, data communication between AP1 and AP2), as well as data communication between non-AP STAs and non-AP STAs (for example, data communication between non-AP STA2 and non-AP STA3).

[0156] An access point is a terminal (e.g., a mobile phone) that connects to a wired (or wireless) network. It's typically deployed in homes, buildings, and campuses, with a typical coverage radius of tens to hundreds of meters. It can also be deployed outdoors. An access point acts as a bridge between wired and wireless networks, connecting wireless network clients and then connecting the wireless network to the Ethernet.

[0157] Specifically, the access point can be a terminal or network device with a Wi-Fi chip, and the network device can be a server, a router, a switch, a bridge, a computer, a mobile phone, a relay station, a vehicle-mounted device, a wearable device, a network device in a 5G network, a network device in a future 6G network, or a network device in a public land mobile network (PLMN), etc., and the embodiments of the present application are not limited thereto. The access point can be a device that supports the Wi-Fi standard. For example, the access point can also support one or more standards of the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family, such as 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11ad, and 802.11ay.

[0158] A non-AP site may be a wireless communication chip, a wireless sensor, or a wireless communication terminal, and may also be referred to as a user, user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. A non-AP site may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, an Internet of Things device, a wearable device, a terminal device in a 5G network, a terminal device in a future 6G network, or a terminal device in a PLMN, and the embodiments of the present application are not limited thereto. A non-AP site may be a device that supports the WLAN standard. For example, a non-AP station may support one or more standards of the IEEE 802.11 family, such as 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11ad, and 802.11ay.

[0159] For example, non-AP sites can be mobile phones, tablets, set-top boxes, smart TVs, smart wearable devices, in-vehicle communication devices, computers, Internet of Things (IoT) nodes, sensors, smart homes such as smart cameras, smart remote controls, smart water and electricity meters, and sensors in smart cities.

[0160] The above-mentioned AP or non-AP site may include a transmitter, a receiver, a memory, a processor, etc., wherein the transmitter and the receiver are used for sending and receiving packet structures respectively, the memory is used to store signaling information and store preset values ​​agreed in advance, etc., and the processor is used to parse signaling information, process related data, etc.

[0161] The above-mentioned communication system applicable to the present application is only an example, and the communication system applicable to the present application is not limited to this. It is described uniformly here and will not be repeated below.

[0162] To facilitate understanding of the embodiments of the present application, several nouns or terms involved in the present application are first introduced below.

[0163] 1. Basic service set (BSS)

[0164] A BSS describes a group of devices in a WLAN that can communicate with each other. A WLAN can include multiple BSSs. A BSS can include multiple stations (STAs). A station can be an AP or a non-AP STA. Optionally, a BSS can include one AP and multiple non-AP STAs associated with the AP.

[0165] 2. Basic Channel

[0166] A basic channel may refer to a channel with a bandwidth of 20 MHz in existing standards. A BSS operating channel bandwidth may be composed of one or more 20 MHz basic channels. For example, a BSS operating channel with a channel bandwidth of 160 MHz may include 8 consecutive basic channels.

[0167] In existing protocols, multiple basic channels within a BSS operating channel bandwidth can be used to jointly transmit data to achieve a larger channel bandwidth. For example, a BSS operating channel bandwidth includes a primary 20MHz channel (P20), a secondary 20MHz channel (S20), a secondary 40MHz channel (S40), a secondary 80MHz channel (S80), or a secondary 160MHz channel (S160). The primary 20MHz and secondary 20MHz channels can form a primary 40MHz channel, the primary 20MHz channel, the secondary 20MHz channel, and the secondary 40MHz channel can form a primary 80MHz channel, and the primary 20MHz channel, the secondary 20MHz channel, the secondary 40MHz channel, and the secondary 80MHz channel can form a primary 160MHz channel.

[0168] In existing protocols, to prevent interference with other stations operating in the 5 GHz or 6 GHz bands, a BSS operating channel bandwidth can support static puncturing. Specifically, one or more fundamental channels within a BSS operating channel serve as punctured channels, and data is transmitted over channels within the BSS operating channel excluding the punctured channels. For example, in a BSS operating channel with a channel bandwidth of 160 MHz, six of the eight contiguous fundamental channels are used for data transmission, while two are punctured channels.

[0169] 3. EHT sites and non-EHT sites

[0170] An EHT site refers to a non-AP STA that supports the EHT protocol. EHT sites can support ultra-large bandwidths, such as 320 MHz. The ultra-large bandwidth supported by ETH devices can be referred to as the ETH BSS operating channel bandwidth or ETH BSS channel bandwidth. EHT sites can also support discontinuous bandwidth, meaning the ETH BSS operating channel bandwidth can support static puncturing.

[0171] A non-EHT station may refer to a non-AP STA that does not support the EHT protocol, or may refer to a station that is unable to identify ultra-large bandwidths and / or discontinuous channel bandwidths, such as high throughput (HT) stations. In other words, based on the processing logic of a non-EHT station, a non-EHT station cannot correctly interpret information about the operating channel bandwidth of an EHT BSS.

[0172] It should be noted that a BSS can include sites of the same type or different types. For example, a BSS can include both ETH sites and non-ETH sites. Different sites can support different BSS operating channel bandwidths. For example, ETH sites can support 20, 40, 80, 160 MHz or 320 MHz bandwidths, and non-ETH sites can support 20, 40, 80 or 160 MHz bandwidths. For ease of description, in this embodiment of the present application, the BSS operating channel bandwidth declared by the ETH AP to the EHT site after establishing the BSS is referred to as the ETH BSS operating channel bandwidth, and the BSS operating channel bandwidth declared to the non-EHT site is referred to as the non-ETH BSS operating channel bandwidth.

[0173] 4. Equivalent isotropically radiated power (EIRP) and power spectral density (PSD)

[0174] EIRP is the product of the power supplied to the antenna by the wireless transmitter and the absolute gain of the antenna in a given direction. PSD can be used to indicate the relationship between frequency and transmit power. For example, when the power spectral density is multiplied by an appropriate coefficient, the power per unit frequency wave can be obtained. When stations in a BSS communicate with each other, the AP can advertise the transmit power limit applicable to the BSS operating channel bandwidth to all non-AP STAs, namely the maximum transmit EIRP or PSD. This allows each non-AP STA to know the transmit power limit of its own BSS operating channel bandwidth.

[0175] In the current protocol, the AP notifies non-AP STAs of the transmit power limit applicable to the BSS operating channel bandwidth by broadcasting the transmit power envelope element. However, the existing transmit power envelope element is designed based on non-ETH stations and cannot indicate the transmit power limit applicable to the ETH BSS operating channel bandwidth.

[0176] This application provides a method and communication device for indicating power, which indicates the maximum transmit PSD corresponding to two BSS operating channel bandwidths in a single element. This method can reduce transmission overhead while reliably indicating the maximum transmit PSD corresponding to the two BSS operating channel bandwidths. The power indication method is first described below with reference to Figures 2 to 7.

[0177] FIG2 is a schematic flowchart of a method for indicating power provided in an embodiment of the present application.

[0178] S210: The transmitting device generates a first frame #1.

[0179] The transmitting device may be the AP shown in FIG1 . Optionally, the transmitting device may also be an EHT AP that supports the EHT protocol. The EHT AP is capable of transmitting the first frame #1 to a variety of different types of receiving devices, where the receiving devices may include EHT sites and non-EHT sites. A more detailed description of the transmitting device and the receiving device can be found in the above description and is not repeated here.

[0180] The first frame #1 includes a first element #1, which includes N first information #1s. The N first information #1s are respectively used to indicate the maximum transmit power spectral density (PSD) corresponding to N basic channels. The first X basic channels of the N basic channels correspond to basic channels within the first basic service set operating channel bandwidth. The X+1th basic channel through the Nth basic channel of the N basic channels are basic channels other than the X basic channels in the indication bandwidth. The indication bandwidth is related to the value of N and the bandwidth of the second basic service set operating channel, which is different from the first basic service set operating channel bandwidth. N and X are positive integers, and N is greater than X. Thus, the first frame #1 can be used to simultaneously indicate the maximum transmit PSD corresponding to basic channels within the first basic service set operating channel bandwidth and the maximum transmit PSD corresponding to basic channels within the second basic service set operating channel bandwidth. The first basic service set operating channel bandwidth, the second service set operating channel bandwidth, the first frame #1, the first element #1, the first information #1, and the indication bandwidth are described in detail below.

[0181] The above-mentioned first basic service set operating channel bandwidth (hereinafter referred to as the first BSS operating channel bandwidth) is different from the second basic service set operating channel bandwidth (hereinafter referred to as the second BSS operating channel bandwidth), which may mean: the size of the first BSS operating channel bandwidth is different from the size of the second BSS operating channel bandwidth, or the number of basic channels within the first BSS operating channel bandwidth is different from the number of basic channels within the second BSS operating channel bandwidth. For example, the first BSS operating channel bandwidth is a 40MHz bandwidth including 2 basic channels, and the second BSS operating channel bandwidth is a 320MHz bandwidth including 16 basic channels.

[0182] Optionally, the basic channel within the second BSS operating channel bandwidth includes the basic channel within the first BSS operating channel bandwidth. Optionally, the bandwidth of the basic channel is 20 MHz. In other words, the first BSS operating channel bandwidth is included in the second BSS operating channel bandwidth.

[0183] For example, the second BSS operating channel bandwidth is 320 MHz, and the first BSS operating channel bandwidth is a portion of the 320 MHz bandwidth, such as 80 MHz. That is, the second BSS operating channel bandwidth includes 16 basic channels 1 to 16, while the first BSS operating channel bandwidth includes a portion of the 16 basic channels, such as basic channels 7 to 10, forming a first BSS operating channel bandwidth of 80 MHz.

[0184] Optionally, the first BSS operating channel bandwidth is a non-EHT operating channel bandwidth, and the second BSS operating channel bandwidth is an EHT operating channel bandwidth. For the description of the non-EHT operating channel bandwidth and the EHT operating channel bandwidth, please refer to the above introduction. It should be noted that the first BSS operating channel bandwidth and the second BSS operating channel bandwidth may also be channel bandwidths with corresponding characteristics defined in the future, and this application does not specifically limit this. In order to facilitate understanding of the embodiments of the present application, the following example description is given with the first BSS operating channel bandwidth as the non-EHT operating channel bandwidth and the second BSS operating channel bandwidth as the EHT operating channel bandwidth. The following description of the non-EHT operating channel bandwidth may apply to the first BSS operating channel bandwidth, and the description of the EHT operating channel bandwidth may apply to the second BSS operating channel bandwidth.

[0185] Optionally, the transmitting device broadcasts information indicating that the EHT BSS operating channel bandwidth is different from the non-EHT BSS operating channel bandwidth, so that the receiving device can learn, based on this information, that the EHT BSS operating channel bandwidth is different from the non-EHT BSS operating channel bandwidth and requires a different approach to interpreting the N first information #1. Alternatively, the receiving device may assume that the EHT BSS operating channel bandwidth is different from the non-EHT BSS operating channel bandwidth, which is not particularly limited in this application.

[0186] The first frame #1 may be a management frame generated by the transmitting device when establishing a BSS, such as a beacon frame or a probe response frame. The transmitting device may establish communication relationships with multiple receiving devices by broadcasting the first frame #1, where the multiple receiving devices may include EHT sites and non-EHT sites.

[0187] The first frame #1 may include a first element #1, which may be used to indicate the transmit power envelope corresponding to the fundamental channel within the BSS operating channel bandwidth. For example, the first element #1 may be a transmit power envelope element. It is understood that the first element #1 may also be another element defined in the future to implement a corresponding function. To facilitate understanding of the embodiments of the present application, the following exemplary description uses the first element #1 as the transmit power envelope element.

[0188] To facilitate understanding of the embodiments of the present application, the transmit power envelope element is exemplarily illustrated below in conjunction with Figure 3. Referring to Figure 3, the transmit power envelope element may include the following four fields: the first field is the element identification field, the second field is the length field, the third field is the transmit power information field, and the fourth field is the maximum transmit power field. The element identification field is used to identify the transmit power envelope element, and the length field is used to indicate the total length of other fields after the length field in the transmit power envelope element. The transmit power information field and the maximum transmit power field are used to indicate the maximum transmit power information corresponding to at least one basic channel, such as the maximum transmit PSD or EIRP.

[0189] It should be noted that this application does not specifically limit the transmit power envelope element and the size of the fields it includes. For example, the element identification field occupies 1 byte, the length field occupies 1 byte, the transmit power information field occupies 1 byte, and the bytes occupied by the maximum transmit power are related to the number of first information #1.

[0190] Specifically, the transmit power information field may include the following three subfields: a maximum transmit power count subfield, a maximum transmit power interpretation subfield, and a maximum transmit power category subfield. The maximum transmit power interpretation subfield and the maximum transmit power category subfield indicate the maximum transmit power information corresponding to at least one basic channel, and the maximum transmit power category subfield indicates the category to which the maximum transmit power applies. For example, this subfield indicates that the maximum transmit power indicated by this element applies to the default category. When the maximum transmit power interpretation subfield takes on different meanings, the meaning of the maximum transmit power count subfield also changes, as described in detail below.

[0191] It should be noted that this application does not specifically limit the size of the transmit power information field and the size of the subfields it includes. For example, when the transmit power information field occupies 1 byte, the maximum transmit power number subfield can occupy 3 bits, the maximum transmit power interpretation subfield occupies 3 bits, and the maximum transmit power type subfield occupies 2 bits.

[0192] Different values ​​of the maximum transmit power interpretation subfield correspond to different interpretations. For example, Table 1 shows an interpretation method of the maximum transmit power interpretation subfield.

[0193] Table 1:

[0194] When the value of the Maximum Transmit Power Interpretation subfield is 0 or 2 (Case A), the Maximum Transmit Power Number subfield is used to describe the EIRP of the local terminal or supervised terminal. When the value of the Maximum Transmit Power Interpretation subfield is 1 or 3 (Case B), the Maximum Transmit Power Interpretation subfield is used to describe the EIRP PSD (or PSD) of the local terminal or supervised terminal. In other words, different values ​​of the Maximum Transmit Power Interpretation subfield have different meanings of the Maximum Transmit Power Number subfield, which is described in detail below.

[0195] It is understood that when first element #1 is a transmit power envelope element and the maximum transmit power information field is used to indicate the PSD, the N first information #1s are respectively carried in the N subfields of the maximum transmit power information field. In this embodiment of the present application, the description of the subfields in the maximum transmit power information field can apply to the description of first information #1. For example, the description of the first X subfields in the N subfields can apply to the description of the first X first information #1s in the N first information #1s, and the description of the subfields from the X+1th to the Nth subfields in the N subfields can apply to the description of the first information #1s from the X+1th to the Nth first information #1s in the N first information #1s. Optionally, each subfield in the maximum transmit power field occupies one byte.

[0196] Optionally, the first X pieces of first information #1 among the N pieces of first information #1 are sorted in ascending order based on the frequency of the corresponding fundamental channel. Optionally, the X+1th through Nth pieces of first information #1 are sorted in ascending order based on the frequency of the corresponding fundamental channel. This allows the receiving end to determine the maximum transmit PSD corresponding to the fundamental channel based on the position of the first information #1, eliminating the need for additional bits to indicate the specific correspondence between the fundamental channel and the first information #1, thereby further reducing transmission overhead.

[0197] Case A: When the Maximum Transmit Power Interpretation subfield is set to 1 or 3, the Maximum Transmit Power Number subfield is used to indicate the number of subfields (Maximum Transmit PSD subfields) included in the Maximum Transmit Power field. That is, different values ​​of the Maximum Transmit Power Number subfield represent the value of N. Optionally, N is 0 or 2 raised to the power of n, where n is an integer greater than or equal to 0. For example, Table 2 shows one interpretation of the Maximum Transmit Power Number subfield when the Maximum Transmit Power Interpretation subfield is set to 1 or 3.

[0198] Table 2:

[0199] That is, when the value of the Maximum Transmit Power Number subfield is not 0, the number of subfields included in the Maximum Transmit Power field is represented by N. When the value of the Maximum Transmit Power Number subfield is 0, N is 0, indicating that the Maximum Transmit Power field includes one subfield, and this subfield indicates the maximum transmit PSD for any bandwidth of the BSS operating channel bandwidth. When the number of subfields N in the Maximum Transmit Power field is greater than or equal to 1, each subfield in the Maximum Transmit Power field is used to describe the maximum transmit PSD of one fundamental channel.

[0200] The first frame #1 and the first element #1 are described above. The indicated bandwidth is related to the value of N and the bandwidth of the second BSS operating channel. The indicated bandwidth is described below in different situations with reference to FIG4 .

[0201] Case 1:

[0202] When N is equal to the first value, the indicated bandwidth is the second BSS operating channel bandwidth, that is, the indicated bandwidth may be the EHT BSS operating channel bandwidth.

[0203] The first value is the number of basic channels within the EHT BSS operating channel bandwidth. For example, if the EHT BSS operating channel bandwidth is 20, 40, 80, 160, or 320 MHz, the first value is 1, 2, 4, 8, or 16, respectively.

[0204] That is, when the number of subfields is equal to the number of fundamental channels within the EHT BSS operating channel bandwidth, each of the subfields (X+1) to (N) in the Maximum Transmit Power field may be used to indicate the maximum transmit PSD corresponding to fundamental channels other than the non-EHT BSS operating channel bandwidth.

[0205] For example, referring to Figure 4 , an EHT BSS operating channel has a bandwidth of 320 MHz and includes 16 (i.e., the first value is 16) basic channels, numbered from low to high frequency as basic channels 1 to 16, with basic channels 7 and 8 being punctured channels. Basic channels 1 to 4 form a secondary 80 MHz channel, channel bandwidths 5 and 6 form a primary 40 MHz channel, and basic channels 9 to 16 form a secondary 160 MHz channel. A non-EHT BSS operating channel has a bandwidth of 40 MHz and includes two basic channels, basic channels 5 and 6.

[0206] When N is equal to the first value of 16, the Maximum Transmit Power field includes 16 subfields. The first two subfields are used to indicate the maximum transmit PSD corresponding to the fundamental channels (i.e., fundamental channels 5 and 6) included in the non-EHT BSS operating channels. Subfields 3 to 16 are used to indicate the maximum transmit PSD corresponding to the fundamental channels of the EHT BSS operating channel bandwidth excluding the fundamental channels included in the non-EHT BSS operating channels. That is, subfields 3 to 16 are used to indicate the maximum transmit PSD corresponding to fundamental channels 1 to 4 and 7 to 16, respectively. It will be understood that fundamental channels 7 and 8 are punctured channels, so the meaning of subfields 7 and 8 of the 16 subfields can be retained or set to the minimum value of -128, which indicates that the 20 MHz channel cannot be used for transmission. This is not further described below.

[0207] Case 2:

[0208] When N is less than the first value, the indicated bandwidth is the primary (N*basic channel bandwidth) MHz in the EHT BBS operating channel bandwidth.

[0209] For 40, 80, 160 MHz, or 320 MHz BSS operating channel bandwidths, if N is greater than 0 and less than 2, 4, 8, or 16, respectively, then when N is equal to 1, 2, 4, or 8, the indicated bandwidth is primary 20 MHz, primary 40 MHz, primary 80 MHz, or primary 160 MHz, respectively.

[0210] That is, when the number of subfields is less than the number of fundamental channels in the EHT BSS operating channels, each of the subfields (X+1) to (N) in the Maximum Transmit Power field may be used to indicate the PSD corresponding to other fundamental channels in the bandwidth excluding the fundamental channels included in the non-EHT BSS operating channels.

[0211] For example, still referring to FIG. 4 , in case 2, when N is less than the first value of 16, N may be equal to 8, indicating that the bandwidth is primarily 160 MHz. The maximum transmit power field includes 8 subfields, the first two of which are used to indicate the maximum transmit PSD corresponding to the fundamental channels (i.e., fundamental channels 5 and 6) within the non-EHT BSS operating channel bandwidth. The third to eighth subfields are used to indicate the maximum transmit PSD corresponding to the fundamental channels within the EHT BSS operating channel bandwidth excluding the fundamental channels included in the non-EHT BSS operating channels, i.e., the maximum transmit PSD corresponding to fundamental channels 1 to 4, 7, and 8.

[0212] It should be noted that since some basic channels may not have a maximum transmit PSD limit or the maximum transmit PSD limit of these basic channels has been previously transmitted (remaining unchanged at this time), in this embodiment of the present application, there is no need to additionally design a subfield to indicate the maximum transmit PSD corresponding to these basic channels, that is, the basic channels not included in the indicated bandwidth but within the EHT BBS operating channel bandwidth do not have a corresponding maximum transmit power subfield, thereby saving transmission overhead by reducing the design of redundant subfields.

[0213] Case 3:

[0214] When N is greater than a first value, it indicates that the bandwidth is greater than the bandwidth of the EHT BSS operating channel. That is, the number of subfields in the Maximum Transmit Power field is greater than the number of fundamental channels included in the EHT BSS operating channel. The first Y subfields of the N subfields are used to respectively indicate the maximum transmit PSD corresponding to the Y fundamental channels included in the EHT BBS operating channel, where Y is a positive integer and Y is greater than X. That is, the first Y subfields include the first X subfields. In other words, in this embodiment of the present application, the first X subfields of the N subfields (i.e., the first X first information of the N first information) can simultaneously indicate the maximum transmit PSD corresponding to fundamental channels within the non-EHT BSS operating channel bandwidth and the maximum transmit PSD corresponding to some fundamental channels within the EHT BSS operating channel bandwidth. This eliminates the need to repeatedly design X subfields to indicate the maximum transmit PSD corresponding to fundamental channels within both the non-EHT and EHT operating channel bandwidths, thereby reducing transmission overhead.

[0215] For example, referring still to FIG. 4 , in case 3, when N is greater than the first value of 16, N may be equal to 32 or 64, or other values ​​greater than 16 raised to the power of 2. Taking N as 32 as an example, the maximum transmit power field includes 32 subfields, of which the first 16 subfields indicate the maximum transmit PSD corresponding to the fundamental channel within the EHT BSS operating channel bandwidth. Fundamental channels 5 and 6 within the non-EHT BSS operating channel bandwidth are arranged in the first two subfields. Subfields 3 to 16 indicate the maximum transmit PSD corresponding to fundamental channels 1 to 4 and 7 to 16, respectively. Subfields 17 to 32 are reserved.

[0216] It should be noted that N in the above cases 1 to 3 is greater than X. When N is less than or equal to the number X of basic channels within the first BSS operating channel bandwidth, the indicated bandwidth can be related to N and X (or the first BSS operating channel bandwidth). When N is less than or equal to X, the following cases are explained:

[0217] Case a:

[0218] When N is equal to the second value, it indicates that the bandwidth is the non-EHT BSS operating channel bandwidth. The second value is the number X of basic channels within the first BSS operating channel bandwidth. For example, if the non-EHT BSS operating channel bandwidth is 20, 40, 80, or 160 MHz, the second value is 1, 2, 4, or 8, respectively.

[0219] Case b:

[0220] When N is less than the second value, the indicated bandwidth is the primary (N * basic channel bandwidth) MHz of the non-EHT BBS operating channel bandwidth. For example, for 40, 80, or 160 MHz bandwidths, if N is greater than 0 and less than 2, 4, or 8, respectively, then when N is equal to 1, 2, or 4, respectively, the indicated bandwidth is primary 20 MHz, primary 40 MHz, or primary 80 MHz, respectively.

[0221] The above describes the indication bandwidth, the number of subfields in the maximum transmit power field, and the arrangement thereof (i.e., the number and arrangement of the first information #1). In an embodiment of the present application, N first information #1s are designed by defining the indication bandwidth, so that the N first information #1s can simultaneously indicate the maximum transmit PSD corresponding to the basic channels within the two BSS operating channel bandwidths. Both EHT sites and non-EHT sites can obtain the maximum transmit PSD corresponding to the basic channels within their own BSS operating channel bandwidths based on the N first information #1s. There is no need to additionally define multiple frames or elements, and transmission overhead can be saved while reliably indicating the maximum transmit PSD corresponding to the two BSS operating channel bandwidths.

[0222] In addition, the X fundamental channels within the non-EHT BSS operating channel bandwidth are also included in the EHT BSS operating channel bandwidth.

[0223] In another approach, a simple extension is made to the transmit power inclusion element. For example, a subfield indicating the maximum transmit PSD for each 20 MHz portion of the EHT BSS operating channel bandwidth excluding the non-EHT BSS operating channel bandwidth is added to the end of the element, or a subfield indicating the maximum transmit EIRP for the 320 MHz bandwidth is added. Because this element only contains a single field indicating the number of maximum transmit PSD subfields, which is currently used to indicate the number of maximum transmit PSD subfields for each of the 20 MHz portions of the EHT BSS operating channel bandwidth that exceeds the non-EHT BSS operating channel bandwidth, this method cannot implement the following functionality: carrying the maximum transmit PSD subfield for each of the 20 MHz portions of the EHT BSS operating channel bandwidth that exceeds the non-EHT BSS operating channel bandwidth. The reason for not carrying the maximum transmit PSD subfield for each of the 20 MHz portions of the extra bandwidth is that some 20 MHz transmission PPDUs do not require additional PSD constraints. Therefore, this method lacks flexibility and results in high overhead. Compared to this approach, this implementation eliminates the need to carry the maximum transmit PSD subfield for each of the 20 MHz portions of the extra bandwidth, resulting in lower overhead and greater flexibility.

[0224] It should be noted that the above description explains the meaning of the maximum transmit power field when the maximum transmit power interpretation subfield is set to 1 or 3. The following description explains the meaning of the maximum transmit power field when the maximum transmit power interpretation subfield is set to 0 or 2, that is, the maximum transmit power field indicates the EIRP corresponding to the channel.

[0225] When the Maximum Transmit Power Interpretation subfield is set to 0 or 2, different values ​​of the Maximum Transmit Power Number subfield represent different subfields included in the Maximum Transmit Power field. For example, Table 2 shows one interpretation method for the Maximum Transmit Power Number subfield when the Maximum Transmit Power Interpretation subfield is set to 0 or 2.

[0226] Table 2:

[0227] That is, the number and content of the subfields included in the maximum transmission power field are related to the value of the maximum transmit power number subfield. For example, when the maximum transmit power number subfield is 0, the maximum transmit power field includes one subfield, which is the maximum transmit power for a 20MHz bandwidth channel. When the maximum transmit power number subfield is 1, the maximum transmit power subfield includes two subfields, one of which is the maximum transmit power corresponding to a 20MHz bandwidth channel, and the other is the maximum transmit power corresponding to a 40MHz bandwidth channel. Similarly, Figure 3 is a schematic structural diagram of a maximum transmit power field when the maximum transmit power number subfield is 4.

[0228] It is understandable that the receiving device can obtain the operating channel bandwidth of its own BSS. For example, the first frame #1 may further include elements for indicating the operating channel bandwidth of the EHT BSS and the operating channel bandwidth of the non-EHT BSS, respectively. For example, the non-EHT station obtains the bandwidth size of the operating channel bandwidth of the non-EHT BSS based on the element indicating the operating channel bandwidth of the non-EHT BSS, such as the high efficiency (HE) operation element, the very high throughput (VHT) operation element, or the high throughput (HT) operation element, and obtains the number X of basic channels based on the bandwidth size, thereby obtaining the first X first information #1 of the N first information #1s for indicating the maximum transmit PSD corresponding to the basic channels within the operating channel bandwidth of the non-EHT BSS. For another example, the EHT station obtains the bandwidth size of the EHT BSS operating channel bandwidth based on the element indicating the EHT BSS operating channel bandwidth, obtains the number Y of basic channels based on the bandwidth size, and thereby determines the meaning of the indicated bandwidth based on the number of first information #1 and the EHT BSS operating channel bandwidth. The EHT station then interprets the N first information #1s to obtain the maximum transmit PSD corresponding to the basic channels within the EHT BSS operating channel bandwidth.

[0229] The fundamental channels of the non-EHT BSS operating channel bandwidth are contiguous, while one or more fundamental channels within the EHT BSS operating channel bandwidth are allowed to be punctured, that is, the fundamental channels are allowed to be discontinuous. When the EHT BSS operating channel bandwidth is different from the non-EHT BSS operating channel bandwidth, they are indicated by different elements. For example, as mentioned above, the EHT BSS operating channel bandwidth is indicated by the EHT operation element, while the non-EHT BSS operating channel bandwidth is indicated by the HE operation element, the VHT operation element, or the HT operation element. When the EHT BSS operating channel bandwidth is the same as the non-EHT BSS operating channel bandwidth, they are indicated by the same element, such as the HE operation element, the VHT operation element, or the HT operation element. To facilitate understanding of the embodiments of the present application, the following example illustrates a second element indicating the EHT BSS operating channel bandwidth. That is, optionally, the first frame #1 also includes a second element, which can be used to indicate the fundamental channels within the EHT BSS operating channel bandwidth. The second element can be an EHT operation element. The following example illustrates the second element as the EHT operation element in conjunction with FIG. 5 .

[0230] Referring to Figure 5, the EHT operation element may include an element identification field, a length field, an extension element identification field, an EHT operation parameter field, a basic EHT modulation and coding scheme (MCS) and number of spatial streams (NSS) (Bassic EHT MCS AND NSS set) field, and an EHT operation information field. The above-mentioned element identification field and element identification extension field are used to identify the element. The length field is used to indicate the total length of other fields after the length field in the EHT operation element. The EHT operation parameter field is used to indicate control information, such as whether the EHT operation information field appears. The basic EHT MCS and NSS set fields are used to indicate the MCS supported by the data unit for each number of streams transmitted by the EHT site in the BSS. The EHT Operation Information field is used to indicate the BSS operating channel bandwidth for the EHT site, including a channel bandwidth subfield and a disabled subchannel bitmap field. The channel bandwidth subfield can be used to indicate the size of the EHT BSS operating channel bandwidth, and the disabled subchannel bitmap subfield is used to indicate which basic channels within the EHT BSS operating channel bandwidth are punctured.

[0231] It will be understood that this application does not limit the size of elements and fields and subfields in elements. For example, the element identification field may occupy 1 byte, the length field may occupy 1 byte, the element identification extension field may occupy 1 byte, the EHT operation parameter field may occupy 1 byte, the basic EHT MCS and NSS set field field may occupy 4 bytes, and the EHT operation information field may occupy 0, 3, or 5 bytes.

[0232] S220, the transmitting end device sends the first frame #1 to the first receiving end device and the second receiving end device. Correspondingly, the first receiving end device receives the first frame #1 from the transmitting end device, and the second receiving end device receives the first frame #1 from the transmitting end device.

[0233] The transmitting device may send the first frame #1 in a broadcast manner. Thus, multiple receiving devices may receive the first frame #1, and the multiple receiving devices may include at least one EHT site and / or at least one non-EHT site. In an embodiment of the present application, the first receiving device may be a non-EHT site, and the second receiving device may be an EHT site. It should be noted that the first receiving device and the second receiving device may also be receiving devices with corresponding characteristics defined in the future, and this application does not specifically limit this. In order to facilitate understanding of the embodiments of the present application, the following illustrative description is given with the first receiving device as a non-EHT site and the second receiving device as an EHT site. The following description of the non-EHT site may apply to the first receiving device, and the description of the EHT site may apply to the second receiving device.

[0234] S230: The first receiving end device determines a maximum transmit PSD corresponding to a basic channel within the first basic service set operating channel bandwidth based on first X first information #1 among the N first information #1.

[0235] Exemplarily, a first receiving device receives a first frame #1. If the maximum transmit power interpretation subfield in the transmit power information field of the power transmit envelope element (i.e., first element #1) of the first frame #1 determines that the maximum transmit power field is used to indicate the PSD, i.e., if the value of the maximum transmit power interpretation subfield in the transmit power information field is 1 or 3, the first receiving device determines the number N of first information #1 based on the maximum transmit power number subfield in the transmit power information field, where N is greater than the number X of fundamental channels within the first BSS operating channel bandwidth. In this case, the first receiving device intercepts the first X first information #1 out of the N first information #1s, for example, only reads the first X subfields out of the N subfields in the maximum transmit power field, thereby obtaining the maximum transmit PSD corresponding to the fundamental channels included in the first operating channel bandwidth, and ignores subsequent first information #1s.

[0236] Optionally, when the maximum transmit power interpretation subfield indicates that the maximum transmit power field is used to indicate EIRP, that is, when the value of the maximum transmit power interpretation subfield is 0 or 2, the first receiving end device, if the received N is greater than 3, only needs to receive the 20MHz maximum transmission power subfield, the 40MHz maximum transmission power subfield, the 80MHz maximum transmission power subfield and the 160MHz maximum transmission power subfield, ignore the remaining other maximum transmission power subfields, and determine the EIRP corresponding to each bandwidth based on the maximum transmit power field.

[0237] S240: The second receiving end device determines a maximum transmit PSD corresponding to a basic channel within the second basic service set operating channel bandwidth based on the N first information #1.

[0238] Exemplarily, a second receiving device receives a first frame #1. If the maximum transmit power interpretation subfield in the transmit power information field of the power transmit envelope element (i.e., first element #1) of first frame #1 determines that the maximum transmit power field is used to indicate the PSD, i.e., if the maximum transmit power interpretation subfield in the transmit power information field takes a value of 1 or 3, the first receiving device determines the number N of first information #1 based on the maximum transmit power number subfield in the transmit power information field, where N is greater than the number X of fundamental channels within the first BSS operating channel bandwidth, and the first BSS operating channel bandwidth is different from the second BSS operating channel bandwidth. In this case, the second receiving device can compare the number N of first information #1 with the number (i.e., the first value) of fundamental channels within the second BSS operating channel bandwidth to determine the indicated bandwidth, thereby combining the meaning of the indicated bandwidth with the N first information #1 to determine the maximum transmit PSD corresponding to the fundamental channels within the second BSS operating channel bandwidth. A more detailed description of the indicated bandwidth can be found in the descriptions of Cases 1, 2, and 3 in step S210 above and is not further described here.

[0239] If N is less than or equal to the number X of basic channels within the operating channel bandwidth of the first BSS, the first receiving device and the second receiving device receive or interpret in the same way, that is, the N first information #1s are determined to be the maximum transmission PSD corresponding to the basic channels from low frequency to high frequency within the corresponding indication bandwidth. For a more detailed description of the indication bandwidth, please refer to the description of case a and case b in the above step S210, which will not be repeated here.

[0240] Optionally, when the maximum transmit power interpretation subfield indicates that the maximum transmit power field is used to indicate EIRP, that is, when the value of the maximum transmit power interpretation subfield is 0 or 2, if the second receiving end device receives N greater than 4, it only needs to receive the 20MHz maximum transmission power subfield, the 40MHz maximum transmission power subfield, the 80MHz maximum transmission power subfield, the 160MHz maximum transmission power subfield and the 320MHz maximum transmission power subfield, determine the EIRP corresponding to each bandwidth based on the maximum transmit power field, and ignore the remaining other maximum transmission power subfields.

[0241] Based on the present technical solution, N first information #1s are designed by defining an indication bandwidth, so that the N first information #1s can simultaneously indicate the maximum transmit PSDs corresponding to the basic channels within the bandwidths of two BSS operating channels. Different types of receiving end devices, such as EHT sites and non-EHT sites, can obtain the maximum transmit PSDs corresponding to the basic channels within their own BSS operating channel bandwidths based on the N first information #1s. This solution does not need to additionally define multiple frames or elements to indicate the maximum transmit PSDs corresponding to the basic channels within different BSS operating channel bandwidths, thereby saving transmission overhead while achieving reliable indication of the maximum transmit PSDs corresponding to the two BSS operating channel bandwidths.

[0242] The above-mentioned method of indicating power is described in combination with Figures 2 and 5. The present application also provides another method of indicating power. Unlike Figures 2 to 5 in which a fixed X (the number of basic channels within the first BSS operating channel bandwidth) first information #1 is used to indicate the maximum transmit PSD corresponding to the basic channel within the first BSS operating channel bandwidth, the method introduced below can use flexibly defined P first information #1 to indicate the maximum transmit PSD corresponding to the basic channel within the first BSS operating channel bandwidth. This method is described below in combination with Figure 6.

[0243] FIG6 is a schematic flowchart of another method for indicating power provided in an embodiment of the present application.

[0244] S610: The transmitting device generates a first frame #2.

[0245] The first frame #2 includes a first element #2, which includes P first information #2 and Q second information. The P first information #2 are used to respectively indicate the maximum transmit power spectral density (PSD) corresponding to P basic channels, where the P basic channels are part or all of the basic channels within the operating channel bandwidth of the first basic service set. The Q second information are used to respectively indicate the maximum transmit PSD corresponding to other basic channels excluding the P basic channels within the indicated bandwidth, where P and Q are positive integers. The indicated bandwidth is related to the value of M and the operating channel bandwidth of the second basic service set. The operating channel bandwidth of the second basic service set is different from the operating channel bandwidth of the first basic service set. M is equal to the sum of P and Q, and M is a positive integer.

[0246] The first element #2 also includes third information and fourth information. The third information is used to indicate the value of P, and the fourth information is used to indicate the value of Q.

[0247] For the meanings of the transmitting device, first element #2, first basic service set operating channel bandwidth, second basic service set operating channel bandwidth, and indicated bandwidth, please refer to the relevant descriptions in Figures 2 to 5 and are not repeated here. The following mainly describes the first information #2, the second information, the third information, and the fourth information.

[0248] The P pieces of first information #2 may refer to information respectively carried in P subfields, and the Q pieces of second information may refer to information respectively carried in Q subfields. When the first element #2 is a transmit power envelope element, the P subfields carrying the first information #2 may be subfields in the maximum transmit power field, and the Q subfields carrying the second information may also be carried in the field and arranged after the P pieces of first information #2. For example, Q subfields may be added, and the Q subfields are used to carry the Q pieces of second information respectively.

[0249] Optionally, the P pieces of first information #2 are sorted in ascending order based on the frequencies of the corresponding fundamental channels. Optionally, the Q pieces of second information are sorted in ascending order based on the frequencies of the corresponding fundamental channels. This allows the receiving end to determine the maximum transmit PSD corresponding to the fundamental channel based on the position of the first information, eliminating the need for additional bits to indicate the specific correspondence between the fundamental channel and the first information, thereby further reducing transmission overhead.

[0250] It should be noted that since the P basic channels are part or all of the basic channels within the first BSS operating channel bandwidth, the value of P can be less than or equal to the number of all basic channels within the first BSS operating channel bandwidth, that is, in this implementation method, the first information #2 that is less than or equal to the number of all basic channels within the first BSS operating channel bandwidth can be used to indicate the maximum transmit PSD corresponding to the basic channels within the first BSS operating channel bandwidth.

[0251] For the first receiving device, since some channels within the first BSS operating channel bandwidth may not have a maximum transmit power PSD limit or the maximum transmit power limit corresponding to the channel has been sent before (remains unchanged at this time), in this implementation, P pieces of information can be designed to respectively indicate the maximum transmit PSD corresponding to some basic channels within the first BSS operating channel bandwidth, thereby saving transmission overhead by reducing the design of redundant subfields.

[0252] The maximum transmit PSD corresponding to other basic channels that are not within the first BSS operating channel bandwidth but within the indicated bandwidth can also be determined through Q second information; there is no corresponding maximum transmit PSD for basic channels that are neither within the first BSS operating channel bandwidth nor within the indicated bandwidth.

[0253] The third information is used to indicate the value of P, and the fourth information is used to indicate the value of Q. It should be noted that when the first element #2 is a transmit power envelope element and the P third information are respectively carried in the P subfields in the maximum transmit power field, the third information can be carried in the maximum transmit power number subfield in the transmit power envelope element, that is, different values ​​of the maximum transmit power number subfield correspond to different P values. In addition, an EHT maximum transmit power count subfield can be defined in the first element #2 to carry the fourth information, and different values ​​of different EHT maximum transmit power count subfields can correspond to different Q values.

[0254] Optionally, the first element #2 may further include indication information indicating whether the number of first information #2 is equal to the number of all basic channels within the first basic service set operating channel bandwidth. When the indication information indicates that the number of first information #2 is equal to the number of all basic channels within the first basic service set operating channel bandwidth, the transmitting device may not send the third information, or the receiving device may not interpret the third information. The non-EHT station may obtain P pieces of first information #2 based on the number of all basic channels within the first basic service set operating channel bandwidth. In this case, the fourth information may be carried in the Maximum Transmit Power Subfield of the Transmit Power Envelope element.

[0255] It is understood that the meaning of the indication field is similar to that defined in Figures 2 to 5 and is related to the number of pieces of information used to indicate the maximum transmit PSD. In the implementations of Figures 2 to 5, the number of pieces of information used to indicate the maximum transmit PSD is represented by the number N of first information #1, while in this implementation, the number of subfields used to indicate the maximum transmit PSD is represented by the sum M of the number P of first information #2 and the number Q of second information. In another implementation, the fourth information is used to indicate that Q takes the value M mentioned above. In this case, the Q pieces of second information are respectively used to indicate the maximum transmit PSD corresponding to the basic channel within the indicated bandwidth.

[0256] To facilitate understanding of the embodiments of the present application, the following exemplary description of three cases of bandwidth indication in this implementation is provided in conjunction with FIG7 . Referring to FIG7 , the meanings of the fundamental channel, channel, non-EHT BBS operating channel bandwidth, and EHT BSS operating channel bandwidth in FIG7 can be found in the description of FIG4 . In this implementation, in case 1, M is equal to the first value 16, P can be 1, and Q can be 15. That is, one subfield indicates the maximum transmit PSD corresponding to fundamental channel 7 within the non-EHT BBS operating channel bandwidth, and the remaining subfields indicate the maximum transmit PSD corresponding to fundamental channels other than fundamental channel 5 within the indicated bandwidth. In case 2, M is less than the first value, M=8, P can be 1, and Q can be 7. That is, one subfield indicates the maximum transmit PSD corresponding to fundamental channel 5 within the non-EHT BBS operating channel bandwidth, and the remaining subfields indicate the maximum transmit PSD corresponding to fundamental channels other than fundamental channel 7 within the indicated bandwidth. In case 3, M is greater than the first value, M=32, P can be 1, and Q can be 31. For the meaning of the indicated bandwidth, please refer to the description of cases 1 to 5 above, which will not be repeated here.

[0257] S620, the transmitting end device sends the first frame #2 to the first receiving end device and the second receiving end device. Correspondingly, the first receiving end device receives the first frame #2 from the transmitting end device, and the second receiving end device receives the first frame #2 from the transmitting end device.

[0258] For the description of this step, please refer to the description of step S220 in Figure 2, which will not be repeated here.

[0259] S630: The first receiving end device determines a maximum transmit PSD corresponding to a basic channel within the first basic service set operating channel bandwidth based on the P first information #2.

[0260] Exemplarily, a first receiving device receives a first frame #2. If the maximum transmit power interpretation subfield in the transmit power information field in the power transmit envelope element (i.e., first element #2) of the first frame #2 determines that the maximum transmit power field is used to indicate the PSD, that is, if the value of the maximum transmit power interpretation subfield in the transmit power information field is 1 or 3, the first receiving device determines the number P of first information #2 based on the maximum transmit power number subfield in the transmit power information field, where P is greater than 0. In this case, the first receiving device intercepts P pieces of first information #2, for example, reading only the first P subfields of the M subfields in the maximum transmit power field, thereby obtaining the maximum transmit PSD corresponding to the basic channel included in the first operating channel bandwidth, and ignoring the subsequent MP subfields.

[0261] Optionally, when the maximum transmit power interpretation subfield indicates that the maximum transmit power field is used to indicate EIRP, that is, when the value of the maximum transmit power interpretation subfield is 0 or 2, the first receiving end device determines which subfields are included in the maximum transmit power field based on the maximum transmit power number subfield in the transmit power information field, and determines the EIRP corresponding to the channel based on the maximum transmit power field.

[0262] S640: The second receiving end device determines a maximum transmit PSD corresponding to a basic channel within the second basic service set operating channel bandwidth based on the P first information #2 and the Q second information.

[0263] Exemplarily, a second receiving device receives first frame #2. If the maximum transmit power interpretation subfield in the transmit power information field of the power transmit envelope element (i.e., first element #2) of first frame #2 determines that the maximum transmit power field is used to indicate PSD, that is, the value of the maximum transmit power interpretation subfield in the transmit power information field is 1 or 3, the first receiving device determines the number P of first information #2 based on the maximum transmit power number subfield in the transmit power information field, and determines the number Q of second information based on the extended (EHT) transmit power number field, where P is greater than 0 and the first BSS operating channel bandwidth is different from the second BSS operating channel bandwidth. In this case, the second receiving device can compare the sum of P and Q with the number of fundamental channels within the second BSS operating channel bandwidth (i.e., the first value) to determine the indicated bandwidth, thereby combining the meaning of the indicated bandwidth with the P first information #2 and the Q second information to determine the maximum transmit PSD corresponding to some or all fundamental channels within the second BSS operating channel bandwidth.

[0264] Optionally, when the maximum transmit power interpretation subfield indicates that the maximum transmit power field is used to indicate EIRP, that is, when the value of the maximum transmit power interpretation subfield is 0 or 2, the second receiving end device determines which subfields are included in the maximum transmit power field based on the maximum transmit power number subfield in the transmit power information field, and determines the EIRP corresponding to the channel based on the maximum transmit power field.

[0265] Based on the present technical solution, by defining P first information #2 for indicating the maximum transmit PSD corresponding to part or all basic channels within the first BSS operating channel bandwidth, and by designing the indication bandwidth definition Q second information, the P first information #2 and the Q second information can indicate the maximum transmit PSD corresponding to part or all basic channels within the second BSS operating channel bandwidth, so that different types of receiving end devices, such as EHT sites and non-EHT sites, can obtain the maximum transmit PSD corresponding to the basic channel within their own BSS operating channel bandwidth based on the first element #2. This solution does not need to additionally define multiple frames or elements to indicate the maximum transmit PSD corresponding to the basic channel within different BSS operating channel bandwidths. While reliably indicating the maximum transmit PSD corresponding to two BSS operating channel bandwidths, transmission overhead is saved. In addition, by indicating the value of P through the third information, the design of the first information #2 is more flexible, that is, the method of indicating the first BSS operating channel bandwidth is more flexible.

[0266] In the power indication method described in Figures 2 to 5 above, N first information #1s can be used to simultaneously indicate the maximum transmit PSD corresponding to some or all basic channels within the first BSS operating channel bandwidth and the second BSS operating channel bandwidth. In the power indication method described in Figures 6 and 7 above, P first information #2s and Q second informations can be used to simultaneously indicate the maximum transmit PSD corresponding to some or all basic channels within the first BSS operating channel bandwidth and the second BSS operating channel bandwidth. In one possible implementation, the above two power indication methods can be used in combination. For example, the transmitting device can send to the receiving device information indicating whether the number of basic channels within the first BSS operating channel bandwidth is equal to the number of basic channels within the first BSS operating channel bandwidth. If the information indicates equality, it can indicate that the first frame sent by the transmitting device is designed according to the first indication method. If the information indicates inequality, it can indicate that the first frame sent by the transmitting device is designed according to the second indication method. This application does not specifically limit this.

[0267] The above description of the method for providing indication information provided in the embodiments of the present application is provided in conjunction with Figures 2 to 7. The following description of the communication device provided in the embodiments of the present application is provided in conjunction with Figures 8 to 10. In one possible implementation, the device is used to implement the steps or processes corresponding to the receiving device in the above method embodiments. In another possible implementation, the device is used to implement the steps or processes corresponding to the transmitting device in the above method embodiments.

[0268] Figure 8 is a schematic block diagram of a communication device 800 provided in an embodiment of the present application. As shown in Figure 8, the device 800 may include a communication unit 810 and a processing unit 820. The communication unit 810 can communicate with the outside world, and the processing unit 820 is used to process data. The communication unit 810 may also be referred to as a communication interface or a transceiver unit.

[0269] In one possible design, the device 800 can implement steps or processes corresponding to those performed by the sending end device in the above method embodiment, wherein the processing unit 820 is used to perform processing-related operations of the sending end device in the above method embodiment, and the communication unit 810 is used to perform sending-related operations of the sending end device in the above method embodiment.

[0270] In another possible design, the device 800 can implement steps or processes corresponding to those performed by the first receiving end device in the above method embodiment, wherein the communication unit 810 is used to perform reception-related operations of the first receiving end device in the above method embodiment, and the processing unit 820 is used to perform processing-related operations of the first receiving end device in the above method embodiment.

[0271] In another possible design, the device 800 can implement steps or processes corresponding to those performed by the second receiving end device in the above method embodiment, wherein the communication unit 810 is used to perform reception-related operations of the second receiving end device in the above method embodiment, and the processing unit 820 is used to perform processing-related operations of the second receiving end device in the above method embodiment.

[0272] It should be understood that the device 800 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 800 can be specifically the sending end device in the above embodiment, and can be used to execute the various processes and / or steps corresponding to the sending end device in the above method embodiment, or the device 800 can be specifically the receiving end device in the above embodiment, and can be used to execute the various processes and / or steps corresponding to the receiving end device in the above method embodiment. To avoid repetition, it will not be repeated here.

[0273] The apparatus 800 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the transmitting end device in the above-mentioned method, or the apparatus 800 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the receiving end device in the above-mentioned method. The functions can be implemented by hardware, or the corresponding software can be implemented by hardware. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the communication unit can be replaced by a transceiver (for example, the transmitting unit in the communication unit can be replaced by a transmitter, and the receiving unit in the communication unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the transmitting and receiving operations and related processing operations in each method embodiment.

[0274] In addition, the above-mentioned communication unit can also be a transceiver circuit (for example, it can include a receiving circuit and a transmitting circuit), and the processing unit can be a processing circuit. In an embodiment of the present application, the device in Figure 8 can be the AP or STA in the aforementioned embodiment, or it can be a chip or chip system, such as: a system on chip (SoC). Among them, the communication unit can be an input and output circuit, a communication interface; the processing unit is a processor or microprocessor or integrated circuit integrated on the chip. This is not limited here.

[0275] Figure 9 is a schematic block diagram of a communication device 900 provided in an embodiment of the present application. The device 900 includes a processor 910 and a transceiver 920. The processor 910 and the transceiver 920 communicate with each other via an internal connection path. The processor 910 is configured to execute instructions to control the transceiver 920 to send and / or receive signals.

[0276] Optionally, the apparatus 900 may further include a memory 930, which communicates with the processor 910 and the transceiver 920 via an internal connection path. The memory 930 is used to store instructions, and the processor 910 can execute the instructions stored in the memory 930. In one possible implementation, the apparatus 900 is used to implement the various processes and steps corresponding to the transmitting end device in the above-mentioned method embodiment. In another possible implementation, the apparatus 900 is used to implement the various processes and steps corresponding to the receiving end device in the above-mentioned method embodiment.

[0277] It should be understood that the device 900 can be specifically the transmitting device or receiving device in the above-mentioned embodiment, or it can be a chip or a chip system. Correspondingly, the transceiver 920 can be the transceiver circuit of the chip, which is not limited here. Specifically, the device 900 can be used to execute the various steps and / or processes corresponding to the transmitting device or the receiving device in the above-mentioned method embodiment. Optionally, the memory 930 can include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory can also include a non-volatile random access memory. For example, the memory can also store information about the device type. The processor 910 can be used to execute instructions stored in the memory, and when the processor 910 executes the instructions stored in the memory, the processor 910 is used to execute the various steps and / or processes of the above-mentioned method embodiment corresponding to the transmitting device or the receiving device.

[0278] During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor or by instructions in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it will not be described in detail here.

[0279] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or instructions in software form. The above processor 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 device, a discrete gate or transistor logic device, or a discrete hardware component. The processor in the embodiments of the present application can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0280] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0281] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor. It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0282] 10 is a schematic diagram of a chip system 1000 provided in an embodiment of the present application. The chip system 1000 (or also referred to as a processing system) includes a logic circuit 1010 and an input / output interface 1020 .

[0283] Logic circuit 1010 may be a processing circuit in chip system 1000. Logic circuit 1010 may be coupled to a storage unit and call instructions in the storage unit, so that chip system 1000 can implement the methods and functions of the embodiments of the present application. Input / output interface 1020 may be an input / output circuit in chip system 1000, outputting information processed by chip system 1000 or inputting data or signaling to be processed into chip system 1000 for processing.

[0284] Specifically, for example, if a transmitting device is equipped with the chip system 1000, the logic circuit 1010 is coupled to the input / output interface 1020, and the logic circuit 1010 can send a first frame through the input / output interface 1020. The first frame can be generated by the logic circuit 1010. For another example, if a receiving device is equipped with the chip system 1000, the logic circuit 1010 is coupled to the input / output interface 1020, and the logic circuit 1010 can receive the first frame through the input / output interface 1020. The logic circuit 1010 determines the maximum transmit power PSD based on the first frame.

[0285] As a solution, the chip system 1000 is used to implement the operations performed by the transmitting end device in the above method embodiment.

[0286] For example, the logic circuit 1010 is used to implement the processing-related operations performed by the sending end device in the above method embodiments, such as the processing-related operations performed by the sending end device in the embodiments shown in Figures 2 to 7; the input / output interface 1020 is used to implement the sending and / or receiving-related operations performed by the sending end device in the above method embodiments, such as the processing-related operations performed by the sending end device in the embodiments shown in Figures 2 to 7.

[0287] As another solution, the chip system 1000 is used to implement the operations performed by the first receiving device in the above method embodiment.

[0288] For example, the logic circuit 1010 is used to implement the processing-related operations performed by the first receiving end device in the above method embodiments, such as the processing-related operations performed by the first receiving end device in the embodiments shown in Figures 2 to 7; the input / output interface 1020 is used to implement the sending and / or receiving-related operations performed by the first receiving end device in the above method embodiments, such as the processing-related operations performed by the first receiving end device in the embodiments shown in Figures 2 to 7.

[0289] As another solution, the chip system 1000 is used to implement the operations performed by the second receiving device in the above method embodiment.

[0290] For example, the logic circuit 1010 is used to implement the processing-related operations performed by the second receiving end device in the above method embodiments, such as the processing-related operations performed by the second receiving end device in the embodiments shown in Figures 2 to 7; the input / output interface 1020 is used to implement the sending and / or receiving-related operations performed by the second receiving end device in the above method embodiments, such as the processing-related operations performed by the second receiving end device in the embodiments shown in Figures 2 to 7.

[0291] In addition, the present application also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed on a computer, the operations and / or processes performed by the sending device or the receiving device in each method embodiment of the present application are executed.

[0292] The present application also provides a computer program product, which includes computer program code or instructions. When the computer program code or instructions are run on a computer, the operations and / or processes performed by the sending device or the receiving device in the various method embodiments of the present application are executed.

[0293] In addition, the present application also provides a communication system, including a transmitting device and a receiving device in the embodiments of the present application.

[0294] It should also be noted that the memory described herein is intended to comprise, but not be limited to, these and any other suitable types of memory.

[0295] Those skilled in the art will appreciate 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, the functional units in the various embodiments of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0296] If the functions are implemented in the form of 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 the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0297] It should be understood that references to "embodiments" throughout this specification mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Therefore, various embodiments throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0298] It should also be understood that the ordinal numbers "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to define the size, content, order, timing, priority, or importance of the multiple objects. For example, the first information and the second information do not indicate differences in information size, content, priority, or importance.

[0299] It should also be understood that in this application, "when", "if" and "if" all mean that the network element will make corresponding processing under certain objective circumstances, which is not a time limit, and does not require the network element to make judgment actions when implementing it, nor does it mean that there are other limitations.

[0300] It should also be understood that, in this application, "at least one" means one or more, and "plurality" means two or more. "At least one item" or similar expressions refers to one or more items, that is, any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a, b, and c.

[0301] It should also be understood that expressions similar to "the item includes one or more of the following: A, B, and C" in this application generally mean, unless otherwise specified, that the item can be any one of the following: A; B; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A, C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C. The above example uses A, B, and C as an example to illustrate the optional items of the item. When the expression is "the item includes at least one of the following: A, B, ..., and X", that is, when the expression contains more elements, the items to which the item can be applied can also be obtained according to the above rules.

[0302] It should also be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects are in an "or" relationship. For example, "A / B" means: A or B.

[0303] It should also be understood that in each embodiment of the present application, "A corresponds to B" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A, and B can also be determined based on A and / or other information.

[0304] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: Generate a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information pieces are respectively used to indicate maximum transmit power spectral density (PSD) corresponding to P basic channels, the P basic channels being part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information pieces are respectively used to indicate maximum transmit PSD corresponding to other basic channels excluding the P basic channels within the indicated bandwidth, P and Q are positive integers, wherein the indicated bandwidth is related to the value of M and the operating channel bandwidth of a second basic service set, the operating channel bandwidth of the second basic service set is different from the operating channel bandwidth of the first basic service set, M is equal to the sum of P and Q, and M is a positive integer, the first element also includes third information and fourth information, the third information is used to indicate the value of P, and the fourth information is used to indicate the value of Q; The first frame is sent.

2. The method according to claim 1, wherein The basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

3. The method according to claim 1 or 2, wherein: The P first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

4. The method according to any one of claims 1 to 3, characterized in that The Q second information are sorted in order from low to high according to the frequency of the corresponding basic channel.

5. The method according to any one of claims 1 to 4, characterized in that The M is equal to a first value, the indicated bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

6. The method according to any one of claims 1 to 4, characterized in that The M is less than a first value, the indicated bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where Z is equal to M multiplied by the basic channel bandwidth, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

7. The method according to any one of claims 1 to 4, characterized in that The M is greater than the first value, the indication bandwidth is greater than the second basic service set operating channel bandwidth, the first S information out of the P first information and the Q second information, a total of M information, are used to respectively indicate the maximum transmit PSD corresponding to the S basic channels included in the second basic service set operating channel bandwidth, and the S is a positive integer, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth, and the S is greater than the P.

8. The method according to claim 7, wherein Of the M pieces of information, namely the P pieces of first information and the Q pieces of second information, the S+1th piece of information to the P+Qth piece of information is retained.

9. The method according to any one of claims 1 to 8, characterized in that The bandwidth of the basic channel is 20 MHz.

10. The method according to any one of claims 1 to 9, characterized in that The first element also includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

11. The method according to any one of claims 1 to 10, characterized in that The first element is a transmit power envelope element.

12. The method according to any one of claims 1 to 11, characterized in that The first basic service set operating channel bandwidth is a non-extreme high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

13. The method according to any one of claims 1 to 12, characterized in that The value of M is 2 to the power of m, and m is an integer greater than or equal to 0.

14. A communication method, characterized in that: The method comprises: Receive the first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information pieces respectively indicating maximum transmit power spectral density (PSD) corresponding to P basic channels, the P basic channels being part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information pieces respectively indicating maximum transmit PSDs corresponding to other basic channels excluding the P basic channels within the indicated bandwidth, P and Q being positive integers, the first element also including third information and fourth information, the third information indicating a value of P, and the fourth information indicating a value of Q, wherein the indicated bandwidth is related to a value of M and a second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth being different from the first basic service set operating channel bandwidth, M being equal to the sum of P and Q, and M being a positive integer; The maximum transmit PSD corresponding to the basic channel within the second basic service set operating channel bandwidth is determined based on the first frame.

15. A communication method, characterized in that: The method comprises: Receive a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information pieces are respectively used to indicate maximum transmit power spectral density (PSD) corresponding to P basic channels, the P basic channels being part or all of the basic channels within the first basic service set operating channel bandwidth, the Q second information pieces are respectively used to indicate maximum transmit PSDs corresponding to other basic channels excluding the P basic channels within the indicated bandwidth, P and Q are positive integers, the first element also includes third information and fourth information, the third information is used to indicate a value of P, and the fourth information is used to indicate a value of Q, wherein the indicated bandwidth is related to a value of M and a second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth is different from the first basic service set operating channel bandwidth, M is equal to the sum of P and Q, and M is a positive integer; A maximum transmit PSD corresponding to a basic channel within the first basic service set operating channel bandwidth is determined based on the first frame.

16. The method according to claim 14 or 15, characterized in that The basic channels within the second basic service set operating channel bandwidth include the basic channels within the first basic service set operating channel bandwidth.

17. The method according to any one of claims 14 to 16, characterized in that The P first information are sorted in order from low to high according to the frequency of the corresponding basic channel.

18. The method according to any one of claims 14 to 17, characterized in that The Q second information are sorted in order from low to high according to the frequency of the corresponding basic channel.

19. The method according to any one of claims 14 to 18, characterized in that The M is equal to a first value, the indicated bandwidth is the second basic service set operating channel bandwidth, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

20. The method according to any one of claims 14 to 18, characterized in that The M is less than a first value, the indicated bandwidth is the main Z MHz in the second basic service set operating channel bandwidth, where Z is equal to M multiplied by the basic channel bandwidth, and the first value is the number of basic channels included in the second basic service set operating channel bandwidth.

21. The method according to any one of claims 14 to 18, wherein The M is greater than the first value, the indication bandwidth is greater than the second basic service set operating channel bandwidth, the first S information out of the P first information and the Q second information, a total of M information, are used to respectively indicate the maximum transmit PSD corresponding to the S basic channels included in the second basic service set operating channel bandwidth, and the S is a positive integer, wherein the first value is the number of basic channels included in the second basic service set operating channel bandwidth, and the S is greater than the P.

22. The method according to claim 21, wherein Of the M pieces of information, namely the P pieces of first information and the Q pieces of second information, the S+1th piece of information to the P+Qth piece of information is retained.

23. The method according to any one of claims 14 to 22, characterized in that The bandwidth of the basic channel is 20 MHz.

24. The method according to any one of claims 14 to 23, wherein The first element also includes a maximum transmit power interpretation field, and the value of the maximum transmit power interpretation field is 1 or 3.

25. The method according to any one of claims 14 to 24, characterized in that The first element is a transmit power envelope element.

26. The method according to any one of claims 14 to 25, characterized in that The first basic service set operating channel bandwidth is a non-extreme high throughput EHT basic service set operating channel bandwidth, and the second basic service set operating channel bandwidth is an EHT basic service set operating channel bandwidth.

27. The method according to any one of claims 14 to 26, characterized in that The value of M is 2 to the power of m, and m is an integer greater than or equal to 0.

28. A communication device, characterized in that: The device includes a transceiver unit and a processing unit, wherein: The processing unit is configured to generate a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information being respectively used to indicate maximum transmit power spectral density (PSD) corresponding to P basic channels, the P basic channels being part or all of the basic channels within a first basic service set operating channel bandwidth, the Q second information being respectively used to indicate maximum transmit PSD corresponding to other basic channels having an indicated bandwidth excluding the P basic channels, the P and the Q being positive integers, wherein the indicated bandwidth is related to a value of M and a second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth being different from the first basic service set operating channel bandwidth, the M being equal to the sum of the P and the Q, and being a positive integer, the first element also including third information and fourth information, the third information being used to indicate a value of P, and the fourth information being used to indicate a value of Q; The transceiver unit is configured to send the first frame.

29. A communication device, characterized in that: The device includes a transceiver unit and a processing unit, wherein: The transceiver unit is configured to receive the first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information being respectively used to indicate maximum transmit power spectral density (PSD) corresponding to P basic channels, the P basic channels being part or all of the basic channels within the bandwidth of a first basic service set operating channel, the Q second information being respectively used to indicate maximum transmit PSD corresponding to other basic channels excluding the P basic channels within the indicated bandwidth, the P and the Q being positive integers, the first element also including third information and fourth information, the third information being used to indicate a value of the P, the fourth information being used to indicate a value of the Q, wherein the indicated bandwidth is related to a value of M and a bandwidth of a second basic service set operating channel, the bandwidth of the second basic service set operating channel being different from the bandwidth of the first basic service set operating channel, the M being equal to the sum of the P and the Q, and the M being a positive integer; The processing unit is configured to determine, based on the first frame, a maximum transmit PSD corresponding to a basic channel within a bandwidth of an operating channel of the second basic service set.

30. A communication device, characterized in that: The device includes a transceiver unit and a processing unit, wherein: The transceiver unit is configured to receive a first frame, the first frame including a first element, the first element including P first information and Q second information, the P first information being respectively used to indicate maximum transmit power spectral density (PSD) corresponding to P basic channels, the P basic channels being part or all of the basic channels within a first basic service set operating channel bandwidth, the Q second information being respectively used to indicate maximum transmit PSD corresponding to other basic channels excluding the P basic channels within the indicated bandwidth, the P and the Q being positive integers, the first element also including third information and fourth information, the third information being used to indicate a value of the P, the fourth information being used to indicate a value of the Q, wherein the indicated bandwidth is related to a value of M and a second basic service set operating channel bandwidth, the second basic service set operating channel bandwidth being different from the first basic service set operating channel bandwidth, the M being equal to the sum of the P and the Q, and the M being a positive integer; The processing unit is configured to determine, based on the first frame, a maximum transmit PSD corresponding to a basic channel within the first basic service set operating channel bandwidth.

31. A communication device, characterized in that: include: A processor, configured to execute computer instructions stored in a memory, so that the apparatus performs the method according to any one of claims 1 to 13, or the apparatus performs the method according to any one of claims 14, 16 to 27, or the apparatus performs the method according to any one of claims 15 to 27.

32. A computer-readable storage medium, characterized in that Computer instructions are stored thereon. When the computer instructions are executed on a computer, the method according to any one of claims 1 to 13 is executed, or the method according to any one of claims 14, 16 to 27 is executed, or the method according to any one of claims 15 to 27 is executed.

33. A chip, characterized in that: The chip includes a processor and a communication interface, and the processor reads instructions stored in the memory through the communication interface to execute the method as described in any one of claims 1 to 13, or executes the method as described in any one of claims 14, 16 to 27, or executes the method as described in any one of claims 15 to 27.

34. A computer program product, characterized in that The method comprises a computer program code, which, when executed on a computer, causes the computer to implement the method as claimed in any one of claims 1 to 13, or causes the computer to implement the method as claimed in any one of claims 14, 16 to 27, or causes the computer to implement the method as claimed in any one of claims 15 to 27.

35. A communication device, characterized in that: include: A processor, configured to execute a computer program stored in a memory, so that the apparatus performs the method according to any one of claims 1 to 13, or so that the apparatus performs the method according to any one of claims 14, 16 to 27, or so that the apparatus performs the method according to any one of claims 15 to 27.

36. The device according to claim 35, wherein The apparatus further comprises the memory.

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