Communication method and communication device

Abstract

The invention provides a communication method and a communication device. The communication method and the communication device are applied to a wireless local area network system which supports an IEEE 802.11 ax next generation Wi-Fi protocol (such as 802.11 be, Wi-Fi 7 or EHT), or an IEEE 802.11 be next generation Wi-Fi protocol (such as Wi-Fi 8, UHR, 11bn), or Wi-Fi AI, or millimeter waves, or ultra wide band (UWB), or sensing. Wherein the first device sends a non-TB PPDU comprising an STF for bearing a first sequence to the second device through a first bandwidth, the first sequence is a sequence formed based on a twiddle factor and an M sequence, and the first sequence corresponds to the first bandwidth greater than 320 MHz. In this way, the second device achieves MIMO power control under a larger bandwidth based on the STF sequence in the non-TB PPDU.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Art

[0002] With the rapid growth of wireless traffic, users have put forward more and more requirements for communication service quality, such as low latency and ultra-reliability. In order to meet users' demand for communication service quality, wireless local area network (WLAN), as a key technology for carrying wireless traffic services, needs to continue to develop and evolve.

[0003] At present, the solution to improve the throughput of the WLAN system can be implemented through multi-input-multi-output (MIMO) technology. Specifically, the receiver can perform MIMO power control through the short training field (STF) sequence in the non-triggered based physical protocol data unit (non-TB PPDU). However, the STF sequence in the current non-TB PPDU cannot be used for MIMO power control under a larger bandwidth. Therefore, how to support MIMO power control under a larger bandwidth is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a communication method and a communication device for supporting MIMO power control under a larger bandwidth.

[0005] In a first aspect, a communication method is provided, including: generating a non-TB PPDU corresponding to a first bandwidth, the non-TB PPDU including an STF for carrying a first sequence, the first sequence being a sequence based on a rotation factor and an M sequence, the M sequence being {-1,-1,-1,1,1,1,-1,1,1,-1,1,1,-1,1}; sending the non-TB PPDU through the first bandwidth, the first bandwidth being greater than 320 MHz.

[0006] The execution subject of the solution described in the first aspect may be the first device, or a chip or integrated circuit disposed in the first device, etc., which is not limited. For ease of description, the following description is made by taking the first device as an example.

[0007] The above-mentioned first sequence may also be referred to as an STF sequence.

[0008] By generating and sending a non-TB PPDU corresponding to a first bandwidth, where the first bandwidth is a bandwidth greater than 320 MHz, the non-TB PPDU includes an STF for carrying a first sequence and corresponding to the first bandwidth. In this way, the receiving side can use the STF sequence in the non-TB PPDU to achieve MIMO power control under a larger bandwidth.

[0009] Since the maximum bandwidth supported by the existing STF sequence is 320 MHz, by designing an STF sequence corresponding to a larger bandwidth (for example, 640 MHz or 480 MHz, not limited to this), it is possible to support MIMO power control under a larger bandwidth.

[0010] According to a second aspect, a communication method is provided, including: receiving a non-TB PPDU via a first bandwidth, the non-TB PPDU including an STF for carrying a first sequence, the first sequence being a sequence based on a rotation factor and an M sequence, the M sequence being {-1,-1,-1,1,1,1,-1,1,1,-1,1,1,-1,1}, and the first bandwidth being greater than 320 MHz; and processing the non-TB PPDU.

[0011] The execution subject of the solution described in the second aspect may be the second device, or may be a chip or integrated circuit disposed in the second device, etc., which is not limited. For ease of description, the second device is used as an example for description below.

[0012] By receiving a non-TB PPDU corresponding to a first bandwidth, where the first bandwidth is a bandwidth greater than 320 MHz, the non-TBPPDU includes an STF for carrying a first sequence and corresponding to the first bandwidth. In this way, the second device can use the STF sequence in the non-TBPPDU to implement MIMO power control under a larger bandwidth.

[0013] Since the maximum bandwidth supported by the existing STF sequence is 320 MHz, by designing an STF sequence corresponding to a larger bandwidth (for example, 640 MHz or 480 MHz, not limited to this), it is possible to support MIMO power control under a larger bandwidth.

[0014] In combination with the solution described in any one of the first aspect and the second aspect, the first bandwidth is 640 MHz, and the first sequence is:

[0015] {c1×{M,1,-M,0,-M,1,-M},0,

[0016] c2×{M,1,-M,0,-M,1,-M},0,

[0017] c3×{M,1,-M,0,-M,1,-M},0,

[0018] c4×{M,1,-M,0,-M,1,-M},0,

[0019] c5×{M,1,-M,0,-M,1,-M},0,

[0020] c6×{M,1,-M,0,-M,1,-M},0,

[0021] c7×{M,1,-M,0,-M,1,-M},0,

[0022]

[0023] Among them, any one of c1, c2, c3, c4, c5, c6, c7 and c8 represents a rotation factor, and the value is 1 or -1.

[0024] The above-mentioned first sequence corresponds to a bandwidth of 640 MHz. Thus, the embodiment of the present application can support MIMO power control under a bandwidth of 640 MHz.

[0025] In combination with the solution described in any one of the first aspect and the second aspect, the first bandwidth is 640 MHz, and the first sequence is:

[0026] {c1×{M,1,-M},0,c2×{-M,1,-M},0,

[0027] c3×{M,1,-M},0,c4×{-M,1,-M},0,

[0028] c5×{M,1,-M},0,c6×{-M,1,-M},0,

[0029] c7×{M,1,-M},0,c8×{-M,1,-M},0,

[0030] c9×{M,1,-M},0,c10×{-M,1,-M},0,

[0031] c11×{M,1,-M},0,c12×{-M,1,-M},0,

[0032] c13×{M,1,-M},0,c14×{-M,1,-M},0,

[0033]

[0034] Among them, any one of c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12, c13, c14, c15 and c16 represents a rotation factor, and the value is 1 or -1.

[0035] The above-mentioned first sequence corresponds to a bandwidth of 640 MHz. Thus, the embodiment of the present application can support MIMO power control under a bandwidth of 640 MHz.

[0036] In combination with the solution described in any one of the first aspect and the second aspect, the first bandwidth is 480 MHz, and the first sequence is:

[0037] {c1×{M,1,-M,0,-M,1,-M},0,

[0038] c2×{M,1,-M,0,-M,1,-M},0,

[0039] c3×{M,1,-M,0,-M,1,-M},0,

[0040] c4×{M,1,-M,0,-M,1,-M},0,

[0041] c5×{M,1,-M,0,-M,1,-M},0,

[0042]

[0043] Among them, any one of c1, c2, c3, c4, c5 and c6 represents a rotation factor, and the value is 1 or -1.

[0044] The above-mentioned first sequence corresponds to a 480 MHz bandwidth. Thus, the embodiment of the present application can support MIMO power control under a 480 MHz bandwidth.

[0045] In combination with the solution described in any one of the first aspect and the second aspect, the first bandwidth is 480 MHz, and the first sequence is:

[0046] {c1×{M,1,-M},0,c2×{-M,1,-M},0,

[0047] c3×{M,1,-M},0,c4×{-M,1,-M},0,

[0048] c5×{M,1,-M},0,c6×{-M,1,-M},0,

[0049] c7×{M,1,-M},0,c8×{-M,1,-M},0,

[0050] c9×{M,1,-M},0,c10×{-M,1,-M},0,

[0051]

[0052] Among them, any one of c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11 and c12 represents a rotation factor, and the value is 1 or -1.

[0053] The above-mentioned first sequence corresponds to a 480 MHz bandwidth. Thus, the embodiment of the present application can support MIMO power control under a 480 MHz bandwidth.

[0054] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0055] {M,1,-M,0,-M,1,-M,0,

[0056] M,1,-M,0,-M,1,-M,0,

[0057] M,1,-M,0,-M,1,-M,0,

[0058] M,1,-M,0,-M,1,-M,0,

[0059] -M,-1,M,0,M,-1,M,0,

[0060] -M,-1,M,0,M,-1,M,0,

[0061] -M,-1,M,0,M,-1,M,0,

[0062] or,

[0063] {-M,-1,M,0,M,-1,M,0,

[0064] -M,-1,M,0,M,-1,M,0,

[0065] -M,-1,M,0,M,-1,M,0,

[0066] -M,-1,M,0,M,-1,M,0,

[0067] M,1,-M,0,-M,1,-M,0,

[0068] M,1,-M,0,-M,1,-M,0,

[0069] M,1,-M,0,-M,1,-M,0,

[0070]

[0071] The above-mentioned first sequence is designed based on the first seed carrier distribution. When it is carried on the subcarriers included in the resources (such as resource units (RU) or multi-resource units (multi RU, MRU)) in the first seed carrier distribution for transmission, the peak-to-average power ratio (PAPR) of the first sequence is better, and thus can support MIMO power control under a larger bandwidth.

[0072] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0073] {M,1,-M,0,-M,1,-M,0,

[0074] -M,-1,M,0,M,-1,M,0,

[0075] -M,-1,M,0,M,-1,M,0,

[0076] M,1,-M,0,M,-1,M,0,

[0077] -M,-1,M,0,M,-1,M,0,

[0078] -M,-1,M,0,-M,1,-M,0,

[0079] M,1,-M,0,-M,1,-M,0,

[0080] or,

[0081] {-M,-1,M,0,M,-1,M,0,

[0082] M,1,-M,0,-M,1,-M,0,

[0083] M,1,-M,0,-M,1,-M,0,

[0084] -M,-1,M,0,-M,1,-M,0,

[0085] M,1,-M,0,-M,1,-M,0,

[0086] M,1,-M,0,M,-1,M,0,

[0087] -M,-1,M,0,M,-1,M,0,

[0088]

[0089] The above-mentioned first sequence is designed based on the first subcarrier distribution. When it is carried on the subcarriers included in the resources in the first subcarrier distribution for transmission, the first sequence has good PAPR performance, thereby being able to support MIMO power control under a larger bandwidth.

[0090] In combination with the solution described in any one of the first aspect and the second aspect, the resources satisfying the first subcarrier distribution include any one of the following:

[0091] 8×996-tone RU, 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU and 484+242-toneMRU.

[0092] The STF sequence corresponding to the first subcarrier distribution (such as the first sequence) can be used for data transmission in 640MHz bandwidth, ensuring the PAPR performance when there is 160 and 80MHz puncturing but no 40MHz puncturing, thereby solving the overhead problem of too many MRU indications caused by 40MHz puncturing.

[0093] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0094] {M,1,-M,0,-M,1,-M,0,

[0095] M,1,-M,0,-M,1,-M,0,

[0096] M,1,-M,0,-M,1,-M,0,

[0097] M,1,-M,0,-M,1,-M,0,

[0098] -M,-1,M,0,M,-1,M,0,

[0099] -M,-1,M,0,M,-1,M,0,

[0100] M,1,-M,0,-M,1,-M,0,

[0101] or,

[0102] {-M,-1,M,0,M,-1,M,0,

[0103] -M,-1,M,0,M,-1,M,0,

[0104] -M,-1,M,0,M,-1,M,0,

[0105] -M,-1,M,0,M,-1,M,0,

[0106] M,1,-M,0,-M,1,-M,0,

[0107] M,1,-M,0,-M,1,-M,0,

[0108] -M,-1,M,0,M,-1,M,0,

[0109]

[0110] The above-mentioned first sequence is designed based on the second subcarrier distribution. When it is carried on the subcarriers included in the resources in the second subcarrier distribution for transmission, the first sequence has better PAPR performance, thereby being able to support MIMO power control under a larger bandwidth.

[0111] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0112] {M,1,-M,0,-M,1,-M,0,

[0113] -M,-1,M,0,-M,1,-M,0,

[0114] M,1,-M,0,-M,1,-M,0,

[0115] M,1,-M,0,-M,1,-M,0,

[0116] -M,-1,M,0,M,-1,M,0,

[0117] -M,-1,M,0,M,-1,M,0,

[0118] -M,-1,M,0,-M,1,-M,0,

[0119] or,

[0120] {-M,-1,M,0,M,-1,M,0,

[0121] M,1,-M,0,M,-1,M,0,

[0122] -M,-1,M,0,M,-1,M,0,

[0123] -M,-1,M,0,M,-1,M,0,

[0124] M,1,-M,0,-M,1,-M,0,

[0125] M,1,-M,0,-M,1,-M,0,

[0126] M,1,-M,0,M,-1,M,0,

[0127]

[0128] The above-mentioned first sequence is designed based on the second subcarrier distribution. When it is carried on the subcarriers included in the resources in the second subcarrier distribution for transmission, the first sequence has better PAPR performance, thereby being able to support MIMO power control under a larger bandwidth.

[0129] In combination with the solution described in any one of the first aspect and the second aspect, the resources satisfying the second subcarrier distribution include any one of the following:

[0130] 8×996-tone RU, 7×996+484-tone MRU, 7×996-tone MRU, 6×996+484-tone MRU, 6×996-tone MRU, 5×996+484-tone MRU, 5×996-tone MRU, 4×996+484-tone MRU, 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU and 484+242-tone MRU.

[0131] The STF sequence corresponding to the second subcarrier distribution (such as the first sequence mentioned above) can be used for data transmission in a 640MHz bandwidth, ensuring the PAPR performance when puncturing at 160, 80 and 40MHz at the same time, thereby ensuring the improved spectrum utilization brought about by the higher-precision puncturing of 40MHz.

[0132] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0133] {M,1,-M,0,-M,1,-M,0,

[0134] M,1,-M,0,-M,1,-M,0,

[0135] -M,-1,M,0,M,-1,M,0,

[0136] -M,-1,M,0,M,-1,M,0,

[0137] -M,-1,M,0,M,-1,M,0,

[0138] -M,-1,M,0,M,-1,M,0,

[0139] M,1,-M,0,-M,1,-M,0,

[0140] or,

[0141] {-M,-1,M,0,M,-1,M,0,

[0142] -M,-1,M,0,M,-1,M,0,

[0143] M,1,-M,0,-M,1,-M,0,

[0144] M,1,-M,0,-M,1,-M,0,

[0145] M,1,-M,0,-M,1,-M,0,

[0146] M,1,-M,0,-M,1,-M,0,

[0147] -M,-1,M,0,M,-1,M,0,

[0148]

[0149] The above-mentioned first sequence is designed based on the third subcarrier distribution. When it is carried on the subcarriers included in the resources in the third subcarrier distribution for transmission, the PAPR performance of the first sequence is good, thereby being able to support MIMO power control under a larger bandwidth.

[0150] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0151] {M,1,-M,0,-M,1,-M,0,

[0152] M,1,-M,0,-M,1,-M,0,

[0153] -M,-1,M,0,M,-1,M,0,

[0154] M,1,-M,0,-M,1,-M,0,

[0155] -M,-1,M,0,M,-1,M,0,

[0156] -M,-1,M,0,M,-1,M,0,

[0157] M,1,-M,0,-M,1,-M,0,

[0158] or,

[0159] {-M,-1,M,0,M,-1,M,0,

[0160] -M,-1,M,0,M,-1,M,0,

[0161] M,1,-M,0,-M,1,-M,0,

[0162] -M,-1,M,0,-M,1,-M,0,

[0163] M,1,-M,0,-M,1,-M,0,

[0164] M,1,-M,0,-M,1,-M,0,

[0165] -M,-1,M,0,M,-1,M,0,

[0166]

[0167] The above-mentioned first sequence is designed based on the third subcarrier distribution. When it is carried on the subcarriers included in the resources in the third subcarrier distribution for transmission, the PAPR performance of the first sequence is good, thereby being able to support MIMO power control under a larger bandwidth.

[0168] In combination with the solution described in any one of the first aspect and the second aspect, the resources satisfying the third subcarrier distribution include any one of the following:

[0169] 6×996-tone MRU, 5×996+484-tone MRU, 5×996-tone MRU, 4×996+484-tone MRU, 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU and 484+242-tone MRU.

[0170] The STF sequence corresponding to the third subcarrier distribution (such as the first sequence mentioned above) can be used for 640MHz bandwidth data transmission, ensuring the data transmission of the 480MHz bandwidth formed when the first 160MHz or the last 160MHz of 640MHz is punctured, and can be applied to bandwidth-limited scenarios (such as: the maximum available bandwidth of the frequency band stipulated in some countries and regions is 500MHz). At the same time, because the bandwidth corresponding to the STF sequence is 640MHz, the STF sequence can also be used for 640MHz bandwidth data transmission.

[0171] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0172] {M,1,-M,0,-M,1,-M,0,

[0173] M,1,-M,0,-M,1,-M,0,

[0174] M,1,-M,0,-M,1,-M,0,

[0175] M,1,-M,0,-M,1,-M,0,

[0176] -M,-1,M,0,M,-1,M,0,

[0177] or,

[0178] {-M,-1,M,0,M,-1,M,0,

[0179] -M,-1,M,0,M,-1,M,0,

[0180] -M,-1,M,0,M,-1,M,0,

[0181] -M,-1,M,0,M,-1,M,0,

[0182] M,1,-M,0,-M,1,-M,0,

[0183]

[0184] The above-mentioned first sequence is designed based on the fourth subcarrier distribution. When it is carried on the subcarriers included in the resources in the fourth subcarrier distribution for transmission, the maximum PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth.

[0185] In combination with the solution described in any one of the first aspect and the second aspect, the first sequence is:

[0186] {M,1,-M,0,-M,1,-M,0,

[0187] -M,-1,M,0,M,-1,M,0,

[0188] -M,-1,M,0,M,-1,M,0,

[0189] -M,-1,M,0,-M,1,-M,0,

[0190] -M,-1,M,0,-M,1,-M,0,

[0191] or,

[0192] {-M,-1,M,0,M,-1,M,0,

[0193] M,1,-M,0,-M,1,-M,0,

[0194] M,1,-M,0,-M,1,-M,0,

[0195] M,1,-M,0,M,-1,M,0,

[0196] M,1,-M,0,M,-1,M,0,

[0197]

[0198] The above-mentioned first sequence is designed based on the fourth subcarrier distribution. When it is carried on the subcarriers included in the resources in the fourth subcarrier distribution for transmission, the PAPR performance of the first sequence is good, thereby being able to support MIMO power control under a larger bandwidth.

[0199] In combination with the solution described in any one of the first aspect and the second aspect, the resources satisfying the fourth subcarrier distribution include any one of the following:

[0200] 6×996-tone RU, 5×996+484-tone MRU, 5×996-tone MRU, 4×996+484-tone MRU, 4×996-tone MRU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU and 484+242-tone MRU.

[0201] The STF sequence corresponding to the fourth subcarrier distribution (such as the first sequence mentioned above) can be used for data transmission in 480MHz bandwidth and can be directly applied to bandwidth-limited scenarios (such as: the maximum available bandwidth of the frequency band stipulated in some countries and regions is 500MHz).

[0202] In a third aspect, a communication device is provided, which is used to execute the method provided in any one of the first to second aspects. Specifically, the communication device may include a unit and / or module for executing the method provided in the first aspect or any one of the above implementations of the first aspect, or include a unit and / or module, such as a processing unit and / or a transceiver unit, for executing the method provided in the second aspect or any one of the above implementations of the second aspect.

[0203] In one implementation, the communication device is a device (such as a first device, or a second device). When the communication device is a device, the transceiver unit may be a transceiver, or an input / output interface; the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0204] In another implementation, the communication device is a chip, a chip system or a circuit used in a device (such as a first device or a second device). When the communication device is a chip, a chip system or a circuit used in a device, the transceiver unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit; the processing unit may be at least one processor, a processing circuit or a logic circuit.

[0205] In a fourth aspect, a communication device is provided, comprising: a memory for storing programs; and at least one processor for executing computer programs or instructions stored in the memory to execute the method provided by the first aspect or any one of the above-mentioned implementations of the first aspect, or to execute the method provided by the second aspect or any one of the above-mentioned implementations of the second aspect.

[0206] In one implementation, the communication apparatus is a device (such as a first device or a second device).

[0207] In another implementation, the device is a chip, a chip system or a circuit used in a device (such as the first device or the second device).

[0208] In a fifth aspect, the present application provides a processor for executing the methods provided in the above aspects.

[0209] For the operations such as sending and acquiring / receiving involved in the processor, unless otherwise specified, or unless they conflict with their actual function or internal logic in the relevant description, they can be understood as operations such as processor output, reception, input, etc., or as sending and receiving operations performed by the radio frequency circuit and antenna, and this application does not limit this.

[0210] In a sixth aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes instructions for executing the method provided by the first aspect or any one of the above-mentioned implementations of the first aspect, or includes instructions for executing the method provided by the second aspect or any one of the above-mentioned implementations of the second aspect.

[0211] In the seventh aspect, a computer program product comprising instructions is provided. When the computer program product is run on a computer, it enables the computer to execute the method provided by the first aspect or any one of the above-mentioned implementations of the first aspect, or enables the computer to execute the method provided by the second aspect or any one of the above-mentioned implementations of the second aspect.

[0212] In an eighth aspect, a chip is provided, comprising a processor and an input / output interface, wherein the processor reads instructions stored in a memory through the input / output interface, executes the method provided by the first aspect or any one of the above-mentioned implementations of the first aspect, or executes the method provided by the second aspect or any one of the above-mentioned implementations of the second aspect.

[0213] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instructions are stored, and the processor is used to execute the computer program or instructions stored in the memory. When the computer program or instructions are executed, the processor is used to execute the method provided by the first aspect or any one of the above-mentioned implementation methods of the first aspect, or execute the method provided by the second aspect or any one of the above-mentioned implementation methods of the second aspect.

[0214] In a ninth aspect, a communication system is provided, comprising the first device and the second device mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0215] Figure 1 It is a schematic diagram of an applicable scenario of an embodiment of the present application.

[0216] Figure 2 It is a schematic structural diagram of a communication device according to an embodiment of the present application.

[0217] Figure 3 It is a schematic diagram of subcarrier distribution and RU distribution in 80MHz bandwidth.

[0218] Figure 4It is a schematic diagram of channel punching on 80MHz bandwidth.

[0219] Figure 5 It is a schematic diagram of a 7×996-tone MRU.

[0220] Figure 6 It is a schematic diagram of a 6×996-tone MRU.

[0221] Figure 7 It is a schematic diagram of a 5×996-tone MRU.

[0222] Figure 8 It is a schematic diagram of a 7×996+484-tone MRU.

[0223] Fig. 9 It is a schematic diagram of a 6×996+484-tone MRU.

[0224] Fig.10 It is a schematic diagram of a 5×996+484-tone MRU.

[0225] Fig.11 It is a schematic diagram of a 4×996+484-tone MRU.

[0226] Fig.12 This is a schematic diagram of another 5×996+484-tone MRU.

[0227] Fig.13 This is a schematic diagram of another 5×996-tone MRU.

[0228] Fig.14 This is a schematic diagram of another 4×996+484-tone MRU.

[0229] Fig.15 This is a schematic diagram of another 4×996-tone MRU.

[0230] Fig.16 It is a schematic diagram of the interaction process of a communication method in an embodiment of the present application.

[0231] Fig.17 It is a schematic block diagram of a communication device provided in an embodiment of the present application.

[0232] Fig.18 It is a schematic block diagram of another communication device provided in an embodiment of the present application.

[0233] Fig.19 It is a schematic block diagram of a chip system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0234] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0235] The technical solution provided in the embodiments of the present application can be applicable to wireless local area network (WLAN) scenarios, for example, supporting the Institute of Electrical and Electronics Engineers (IEEE) 802.11 related standards, such as 802.11a / b / g standards, 802.11n standards, 802.11ac standards, 802.11ax standards, 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, such as 802.11be next generation, Wi-Fi 8, etc., and can also be applied to wireless personal area network systems based on ultra wide band (UWB), such as the 802.15 series standards, and can also be applied to sensing systems, such as the 802.11bf series standards. Among them, the 802.11n standard is called high throughput (HT), the 802.11ac standard is called very high throughput (VHT) standard, the 802.11ax standard is called high efficient (HE) standard, and the 802.11be standard is called extremely high throughput (EHT) standard. Among them, 802.11bf includes two major standards: low frequency (for example, sub7GHz) and high frequency (for example, 60GHz). The implementation of sub7GHz mainly relies on 802.11ac, 802.11ax, 802.11be and the next generation standards, and the implementation of 60GHz mainly relies on 802.11ad, 802.11ay and the next generation standards. Among them, 802.11ad may also be called a directional multi-gigabit (DMG) standard, and 802.11ay may also be called an enhanced directional multi-gigabit (EDMG) standard.

[0236] Although the embodiments of the present application are mainly described by deploying a WLAN network, especially a network using the IEEE 802.11 system standard, it is easy for those skilled in the art to understand that the various aspects involved in the embodiments of the present application can be extended to other networks using various standards or protocols, such as a high performance radio local area network (HIPERLAN), a wireless wide area network (WWAN), a wireless personal area network (WPAN), or other networks known now or developed later. Therefore, regardless of the coverage range and wireless access protocol used, the various aspects provided in the embodiments of the present application can be applied to any suitable wireless network.

[0237] The technical solution of the embodiment of the present application can also be applied to various communication systems, such as: WLAN communication system, wireless fidelity (wireless fidelity, Wi-Fi) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, WiMAX) communication system, fifth generation (5 th generation, 5G) systems or new radio (NR), sixth generation (6 th generation, 6G) systems, internet of things (IoT) networks or vehicle to x (V2X), etc.

[0238] The above-mentioned communication system applicable to the present application is only an example for illustration, and the communication system applicable to the present application is not limited to this. A unified description is given here and no further elaboration is given below.

[0239] Figure 1 Schematic diagram of the applicable scenario of the embodiment of the present application. Figure 1As shown, the communication method provided by the present application is applicable to data communication between stations (STA), 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), referred to as AP and non-AP station respectively. 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), and data communication between non-AP STAs and non-AP STAs (for example, data communication between non-AP STA2 and non-AP STA3).

[0240] Among them, the access point can be a node for terminals (such as mobile phones) to enter the wired (or wireless) network. It is mainly deployed in homes, buildings and parks, with a typical coverage radius of tens to hundreds of meters. Of course, it can also be deployed outdoors. The access point is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet.

[0241] Specifically, the access point may be a terminal or network device with a Wi-Fi chip, or may be a terminal or network device including a chip for accessing a wired (wireless) network, and the network device may 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 6G network, or a network device in a public land mobile network (PLMN), etc., without limitation. The access point may be a device that supports the Wi-Fi standard. For example, the access point may also support one or more standards of the IEEE802.11 series such as 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11ad, 802.11ay, etc.

[0242] A non-AP site may be a wireless communication chip, a wireless sensor or a wireless communication terminal, etc., and may also be referred to as a user, user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a 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 function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an Internet of Things device, a wearable device, a terminal device in a 5G network, a terminal device in a 6G network or a terminal device in a PLMN, etc., without limitation. A non-AP site may be a device that supports the WLAN standard. For example, the non-AP station may support one or more standards of the IEEE 802.11 series, such as 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11ad, and 802.11ay.

[0243] For example, non-AP sites can be mobile phones, tablets, set-top boxes, smart TVs, smart wearable devices, vehicle-mounted communication devices, computers, IoT nodes, sensors, smart homes such as smart cameras, smart remote controls, smart water and electricity meters, and sensors in smart cities.

[0244] 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 respectively used for sending and receiving packet structures, 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.

[0245] For example, Figure 2 is a schematic structural diagram of a communication device according to an embodiment of the present application, Figure 2 The device shown can be an AP or a non-AP site. Among them, the medium access control (MAC) layer processing module, the physical (PHY) layer processing module, the radio frequency / antenna, etc. are used to implement the relevant functions of the above-mentioned transmitter and receiver, such as Figure 2 As shown, in addition to the MAC layer processing module, the PHY layer processing module, the RF / antenna, the memory, and the processor, the device may also include a controller and a scheduler.

[0246] It should be understood that Figure 2 This is only an example of a device provided in the present application and does not constitute a limitation of the present application. For example, the device may not include a controller and / or a scheduler.

[0247] To facilitate understanding of the embodiments of the present application, several nouns or terms involved in the present application are first introduced below.

[0248] 1. Subcarrier: Wireless communication signals are transmitted within a certain channel bandwidth. Orthogonal frequency division multiplexing (OFDM) technology can be used to divide the bandwidth into multiple frequency components at a certain frequency interval within the channel bandwidth. These components are called subcarriers.

[0249] 2. Subcarrier distribution based on continuous RU definition (Tone Plan)

[0250] See also Figure 3 , Figure 3 This is a schematic diagram of the subcarrier distribution and RU distribution in an 80MHz bandwidth. When the bandwidth is 80MHz, the entire bandwidth can be composed of 4 242-tone RUs, or a 996-tone RU, or a combination of 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, and 484-tone RU. Among them, 26-tone RU means that the RU contains 26 subcarriers, 52-tone RU means that the RU contains 52 subcarriers, 106-tone RU means that the RU contains 106 subcarriers, and so on. In addition to the subcarriers used to transmit data, the RU also includes pilot subcarriers. In addition to the subcarriers that make up the RU, the bandwidth also includes some guard subcarriers, empty subcarriers, or direct current (DC) subcarriers.

[0251] When the bandwidth is an integer multiple of 80MHz, the entire bandwidth can be regarded as a copy of multiple 80MHz subcarrier distributions. For example, when the bandwidth is 240MHz, the entire bandwidth can be regarded as a copy of three 80MHz subcarrier distributions; when the bandwidth is 320MHz, the entire bandwidth can be regarded as a copy of four 80MHz subcarrier distributions. The distribution diagram is not given separately here.

[0252] 3. Multi-resource unit (multi-RU, MRU): MRU includes multiple continuous or discontinuous RUs. In other words, MRU is an RU composed of multiple RUs.

[0253] For example, the 802.11be protocol introduces multiple MRUs: 52+26-tone MRU consisting of a 52-tone RU and a 26-tone RU, 106+26-tone MRU consisting of a 106-tone RU and a 26-tone RU, 484+242-tone MRU consisting of a 484-tone RU and a 242-tone RU, 996+484-tone MRU consisting of a 996-tone RU and a 484-toneRU, 242+484+996-tone MRU consisting of a 242-toneRU, a 484-tone RU and a 996-tone RU, 2×996+484-tone MRU consisting of two 996-tone RUs and a 484-tone RU, 3×996-tone MRU consisting of three 996-tone RUs, and 3×996+484-tone MRU consisting of three 996-tone RUs and one 484-tone RU. MRU, etc.

[0254] The above-mentioned MRU may also include MRUs with larger bandwidths, for example, 5×996-tone MRU, 6×996-tone MRU, 7×996-tone MRU, 8×996-tone RU, 6×996+484-tone MRU, 5×996+484-tone MRU and 4×996+484-tone MRU.

[0255] It should be noted that the MRU described in the embodiments of the present application may include not only the MRU defined in 802.11be, but also the MRU defined in future standards, such as the MRU under the aforementioned larger bandwidth, which is further described below.

[0256] 3. Preamble punctured

[0257] Some channels may be unavailable for a period of time or at a specific time due to the following possible reasons:

[0258] 1) There are radar signals. In unlicensed spectrum, if WLAN users detect radar signals, they should actively avoid them.

[0259] 2) Authorized users exist. On certain channels, there may be authorized users. If a WLAN user finds an authorized user, he or she should actively avoid him or her.

[0260] 3) There is interference from other users.

[0261] For these scenarios where sub-channel transmission is not allowed, the 802.11ax protocol proposes a transmission method of preamble puncturing. This method enables the sender to transmit PPDU even when some sub-channels are busy.

[0262] Figure 4 This is a schematic diagram of channel puncturing on an 80MHz bandwidth. Figure 4 As shown in the figure, the 80MHz bandwidth includes 4 20MHz sub-channels, which are marked as sub-channel 1 (CH1), sub-channel 2 (CH2), sub-channel 3 (CH3) and sub-channel 4 (CH4) from low to high frequency. Among them, CH1 is the main channel, and CH2, CH3, and CH4 are slave channels. If CH2 is punctured, CH2 cannot be used, but CH1, CH3, and CH4 can still be used.

[0263] The embodiments of the present application support channel puncturing at a larger bandwidth. In one example, a 640MHz bandwidth includes four 160MHz sub-channels, which are marked as sub-channel 1 (CH1), sub-channel 2 (CH2), sub-channel 3 (CH3) and sub-channel 4 (CH4) from low to high frequency. If CH2 is punctured, CH2 cannot be used, and CH1, CH3, and CH4 can still be used. In another example, a 640MHz bandwidth also includes eight 80MHz sub-channels, which are marked as sub-channel 1 (CH1), sub-channel 2 (CH2), sub-channel 3 (CH3), sub-channel 4 (CH4), sub-channel 5 (CH5), sub-channel 6 (CH6), sub-channel 7 (CH7) and sub-channel 8 (CH8) from low to high frequency. If CH2 is punctured, CH2 cannot be used, and CH1, CH3, CH4, CH5, CH6, CH7 and CH8 can still be used. Among them, the above description is also applicable to other bandwidths, for example, 480MHz, etc., and will not be repeated.

[0264] Combined with the following Figures 5 to 15 Describe the relationship between preamble puncturing and MRU type.

[0265] (I) First subcarrier distribution (tone plan)

[0266] The resources satisfying the first sub-carrier distribution may be RU or MRU, which is not limited, and the number of resources satisfying the first sub-carrier distribution is not limited, and may be one or more.

[0267] It should be noted that, if the first subcarrier distribution is punctured, the puncturing granularity of the first subcarrier distribution may include one or more of 160MHz and 80MHz. The subcarrier distribution using this puncturing method reduces the overhead of the MRU indication compared to the method using the 40MHz puncturing granularity.

[0268] The first subcarrier distribution corresponds to a 640 MHz bandwidth. Resources that meet the first subcarrier distribution include but are not limited to:

[0269] 8×996-tone RU, 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, and RU or MRU in the 802.11be protocol.

[0270] For example, a 7×996-tone MRU can be regarded as a 996-tone RU in an 8×996-tone RU that is punctured, and there are eight locations for the punctured 996-tone RU, which are: Figure 5 7×996-tone MRU1 to 8 shown in.

[0271] For example, a 6×996-tone MRU can be considered as two 996-tone RUs (connected together) in an 8×996-tone RU that are punctured, and there are four locations for the punctured 996-tone RUs, namely Figure 6 6×996-tone MRUs 1 to 4 shown in FIG.

[0272] For example, a 5×996-tone MRU can be regarded as three 996-tone RUs (two 996-tone RUs are connected together) in an 8×996-tone RU by punching holes, and there are 12 positions of the punched 996-tone RUs, which are Figure 7 5×996-tone MRUs 1 to 12 shown in FIG.

[0273] The resources satisfying the first subcarrier distribution are merely examples, and may also include RUs or MRUs defined in 802.11be.

[0274] (II) Second subcarrier distribution

[0275] The resources satisfying the second sub-carrier distribution may be RU or MRU, which is not limited, and the number of resources satisfying the second sub-carrier distribution is not limited, and may be one or more.

[0276] It should be noted that, if the second subcarrier distribution is punctured, the puncturing granularity of the second subcarrier distribution may include one or more of 160 MHz, 80 MHz and 40 MHz. The subcarrier distribution using this puncturing method improves spectrum utilization.

[0277] The second subcarrier distribution corresponds to a 640 MHz bandwidth. Resources that meet the second subcarrier distribution include but are not limited to:

[0278] 8×996-tone RU, 7×996+484-tone MRU, 7×996-tone MRU, 6×996+484-tone MRU, 6×996-tone MRU, 5×996+484-tone MRU, 5×996-tone MRU, 4×996+484-tone MRU and RU or MRU in the 802.11be protocol.

[0279] For example, a 7×996+484-tone MRU can be regarded as a 484-tone RU in an 8×996-tone RU that is punctured. There are 16 locations for the punctured 484-tone RU, which are: Figure 8 7×996+484-tone MRU 1 to 16 shown in.

[0280] For example, a 6×996+484-tone MRU can be regarded as a 484-tone RU and a 996-tone RU in an 8×996-tone RU that are punctured, and there are 28 locations of punctured 484-tone RU and 996-tone RU, which are Fig. 9 6×996+484-tone MRU 1 to 28 shown in.

[0281] For example, a 5×996+484-tone MRU can be considered as a 484-tone RU and two 996-tone RUs punched out of an 8×996-tone RU. There are 24 locations for the punched 484-tone RU and 996-tone RU, which are: Fig.10 5×996+484-tone MRU 1 to 24 shown in.

[0282] For example, a 4×996+484-tone MRU can be considered as a 484-tone RU and three 996-tone RUs punched in an 8×996-tone RU. There are 40 locations for the punched 484-tone RU and 996-tone RU, which are Fig.11 4×996+484-tone MRU 1 to 40 shown in.

[0283] For the description of 7×996-tone MRU, 6×996-tone MRU and 5×996-tone MRU in the resources satisfying the second subcarrier distribution, reference may be made to the description of the resources in the first subcarrier distribution, which will not be described in detail.

[0284] The resources satisfying the second subcarrier distribution are merely examples, and may also include RUs or MRUs defined in 802.11be.

[0285] (III) Distribution of the third subcarrier

[0286] The resources satisfying the third subcarrier distribution may be RU or MRU, which is not limited, and the number of resources satisfying the third subcarrier distribution is not limited, and may be one or more.

[0287] It should be noted that, if the third subcarrier distribution is punctured, the puncturing granularity of the third subcarrier distribution may include one or more of 160 MHz, 80 MHz and 40 MHz. The subcarrier distribution using this puncturing method improves spectrum utilization.

[0288] The third subcarrier distribution corresponding to 480 MHz bandwidth is used as an example for description. Resources that meet the third subcarrier distribution include but are not limited to:

[0289] 6×996-tone MRU 1, 6×996-tone MRU 4, 5×996+484-tone MRU, 5×996-toneMRU, 4×996+484-tone MRU, and RU or MRU in the 802.11be protocol.

[0290] For example, a 5×996+484-tone MRU can be considered as a 484-tone RU and two 996-tone RUs punched in an 8×996-tone RU. There are 24 locations for the punched 484-tone RU and 2×996-tone RU, which are Fig.10 5×996+484-tone MRU 1 to 24 shown in.

[0291] For example, a 5×996-tone MRU can be considered as a puncturing of three 996-tone RUs in an 8×996-tone RU, and there are 12 locations of the punctured 996-tone RUs, which are Figure 7 5×996-tone MRUs 1 to 12 shown in FIG.

[0292] For example, a 4×996+484-tone MRU can be considered as a 484-tone RU and three 996-tone RUs punched in an 8×996-tone RU. There are 40 locations for the punched 484-tone RU and 996-tone RU, which are Fig.11 4×996+484-tone MRU 1 to 40 shown in.

[0293] For the description of 6×996-tone MRU 1 and 6×996-tone MRU 4 in the resources satisfying the third subcarrier distribution, reference may be made to the description of the resources in the first subcarrier distribution, which will not be described in detail.

[0294] The resources satisfying the third subcarrier distribution are merely examples, and may also include RUs or MRUs defined in 802.11be.

[0295] (IV) Fourth subcarrier distribution

[0296] The resources satisfying the fourth subcarrier distribution may be RU or MRU, which is not limited, and the number of resources satisfying the fourth subcarrier distribution is not limited, and may be one or more.

[0297] It should be noted that, if the third subcarrier distribution is punctured, the puncturing granularity of the third subcarrier distribution may include one or more of 160 MHz, 80 MHz and 40 MHz. The subcarrier distribution using this puncturing method improves spectrum utilization.

[0298] The fourth subcarrier distribution corresponding to 480 MHz bandwidth is used as an example for description. Resources that meet the fourth subcarrier distribution include but are not limited to:

[0299] 6×996-tone RU, 5×996+484-tone MRU, 5×996-tone MRU, 4×996+484-tone MRU, 4×996-tone MRU, and RU or MRU in the 802.11be protocol.

[0300] For example, a 5×996+484-tone MRU can be regarded as a 484-tone RU in a 6×996-tone RU that is punctured. There are 12 locations for the punctured 484-tone RU, which are: Fig.12 5×996+484-tone MRU 1 to 12 shown in.

[0301] For example, a 5×996-tone MRU can be regarded as a 996-tone RU in a 6×996-tone RU that is punched, and there are 6 locations for the punched 996-tone RU, which are: Fig.13 5×996-tone MRUs 1 to 6 shown in FIG.

[0302] For example, a 4×996+484-tone MRU can be regarded as a 484-tone RU and a 996-tone RU in a 6×996-tone RU that are punctured, and there are 20 locations of the punctured 484-tone RU and 996-tone RU, which are Fig.14 4×996+484-tone MRU 1 to 20 shown in.

[0303] For example, a 4×996-tone MRU can be considered as two 996-tone RUs in a 6×996-tone RU that are punched, and there are three locations for the punched 996-tone RUs, which are: Fig.15 4×996-tone MRUs 1 to 3 shown in Figure 1.

[0304] The above resources satisfying the fourth subcarrier distribution are only examples, and may also include RUs or MRUs defined in 802.11be.

[0305] It should be uniformly explained that the above four subcarrier distributions are respectively used to describe the distribution or division of different subcarriers within the bandwidth.

[0306] It should also be noted that the embodiments of the present application can set corresponding STF sequences for different subcarrier distributions, so as to support MIMO power control corresponding to different subcarrier distributions under a larger bandwidth.

[0307] The first subcarrier distribution to the fourth subcarrier distribution described above are described by taking 640 MHz and 480 MHz as examples, but can also be applied to the description of the relationship between puncturing and MRU under other bandwidths, which will not be repeated here.

[0308] In order to solve the technical problems mentioned in the background technology section, the present application provides a communication method and a communication device for supporting MIMO power control under a larger bandwidth. For details, see Fig.16 .

[0309] For ease of understanding and explanation, the following uses the interaction between the first device and the second device as an example to illustrate the method provided in the embodiment of the present application, but this should not constitute any limitation on the execution subject of the method provided in the present application. For example, the first device shown below can be replaced by a component configured in the first device (such as a circuit, a chip, or a chip system, etc.), and the second device can be replaced by a component configured in the second device (such as a circuit, a chip, or a chip system, etc.). The first device can be an AP or a STA, and the second device can be a STA or an AP. The STF sequence provided in the embodiment of the present application can be used for uplink transmission or for downlink transmission.

[0310] Fig.16 Schematic diagram of an interactive process of a communication method in an embodiment of the present application. Fig.16 As shown, the method includes:

[0311] S601. A first device generates a non-TB PPDU corresponding to a first bandwidth, where the non-TB PPDU includes an STF for carrying a first sequence, where the first sequence is a sequence composed of a rotation factor and an M sequence.

[0312] In one embodiment, the first bandwidth is a bandwidth greater than 320 MHz. For example, the first bandwidth may be 480 MHz, 640 MHz, etc.

[0313] The above-mentioned "generating a non-TB PPDU corresponding to the first bandwidth" can be: the bandwidth used to transmit the non-TB PPDU is the first bandwidth, or the fields in the non-TB PPDU are transmitted through the first bandwidth, for example, the preamble signaling field and the data field in the non-PPDU are both transmitted through the first bandwidth.

[0314] The above-mentioned “non-TB PPDU” may also be a multi-user (MU) PPDU, or may be a term other than TB PPDU defined in future standards, which is not limited thereto.

[0315] The first sequence mentioned above is an STF sequence.

[0316] Furthermore, the first sequence can be used for MIMO power control under a larger bandwidth. For example, since the maximum bandwidth that the existing STF sequence can support is 320 MHz, by designing an STF sequence corresponding to a larger bandwidth (for example, 640 MHz or 480 MHz, not limited to this), this can support MIMO power control under a larger bandwidth.

[0317] The first sequence may include multiple second sequences, each second sequence is a sequence based on a rotation factor and at least one M sequence, and one second sequence corresponds to one second bandwidth.

[0318] In addition, the M sequence may include: a +M sequence and a -M sequence. An example of a +M sequence is: {-1,-1,-1,1,1,1,-1,1,1,-1,1,1,-1,1}, and an example of a -M sequence is: {1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1}.

[0319] In a possible embodiment, the first bandwidth and the second bandwidth satisfy a certain association:

[0320] For example, the first bandwidth is 640 MHz, the second bandwidth may be 80 MHz, and the first sequence includes 8 second sequences;

[0321] For another example, the first bandwidth is 640 MHz, the second bandwidth may be 40 MHz, and the first sequence includes 16 second sequences;

[0322] For another example, the first bandwidth is 480 MHz, the second bandwidth may be 80 MHz, and the first sequence includes 6 second sequences;

[0323] For another example, the first bandwidth is 480 MHz, the second bandwidth may be 40 MHz, and the first sequence includes 12 second sequences;

[0324] For another example, the first bandwidth is 640 MHz, the second bandwidth may be 20 MHz, and the first sequence includes 32 second sequences;

[0325] For another example, the first bandwidth is 480 MHz, the second bandwidth may be 20 MHz, and the first sequence includes 24 second sequences.

[0326] In summary, the multiple relationship between the first bandwidth and the second bandwidth is associated with the number of second sequences included in the first sequence.

[0327] For ease of description, the first sequence is described below using the first bandwidth of 640 MHz and 480 MHz as examples. The description of 640 MHz and 480 MHz can also be applied to other bandwidths greater than 320 MHz, which will not be repeated below.

[0328] 1. The first bandwidth is 640MHz

[0329] Scenario #1: The STF sequence corresponding to the first bandwidth is designed based on the M sequence corresponding to the second bandwidth of 80 MHz.

[0330] The first sequence is through STF -A:B:AIndicates (the values ​​of A and B are not limited, -A indicates the subscript number of the starting subcarrier, A indicates the subscript number of the ending subcarrier, and B indicates the subcarrier spacing, that is, the interval between two adjacent subcarriers is B-1 subcarriers. Among them, -A:B:A means that the value of the STF sequence is carried in the range from subcarrier -A to subcarrier A, and every 16 subcarriers carry a value of the STF sequence, and the values ​​carried on other subcarriers are 0).

[0331] For example, the STF corresponding to 640 MHz -A:·B:A for:

[0332] {c1×{M,1,-M,0,-M,1,-M},0,

[0333] c2×{M,1,-M,0,-M,1,-M},0,

[0334] c3×{M,1,-M,0,-M,1,-M},0,

[0335] c4×{M,1,-M,0,-M,1,-M},0,

[0336] c5×{M,1,-M,0,-M,1,-M},0,

[0337] c6×{M,1,-M,0,-M,1,-M},0,

[0338] c7×{M,1,-M,0,-M,1,-M},0,

[0339]

[0340] Any of the above c1, c2, c3, c4, c5, c6, c7 and c8 represents a rotation factor, and the value is 1 or -1. {M, 1, -M, 0, -M, 1, -M} is a second sequence, and "0" in the above expression represents a subcarrier zero value.

[0341] The above-mentioned first sequence corresponds to a bandwidth of 640 MHz. Thus, the embodiment of the present application can support MIMO power control under a bandwidth of 640 MHz.

[0342] Since the first bandwidth is 640MHz and the second bandwidth is 80MHz, there are 8 second sequences in total. Each second sequence needs to be configured with a rotation factor. The value of each rotation factor is 1 or -1, and 2 8 = 256 possible rotation factor sequences. The rotation factor sequence can be expressed as c = {±1, ±1, ±1, ±1, ±1, ±1, ±1, ±1}. For each rotation factor sequence, a first sequence can be constructed accordingly.

[0343] Due to OFDMA transmission and preamble puncturing, only a part of the frequency domain resources RU or MRU within the complete bandwidth may be used for transmission. At this time, only the first sequence corresponding to the transmitted RU or MRU part remains unchanged, and the first sequence corresponding to the punctured (not used for transmission) RU or MRU part will be set to zero (in other words, among the values ​​of the elements included in the first sequence, the values ​​of the elements corresponding to the unpunctured RU / MRU are transmitted through the subcarriers included in the unpunctured RU / MRU, and the values ​​carried on the subcarriers included in the punctured RU / MRU are zero). The PAPR of the first sequence after the partial zeroing operation is calculated to minimize the maximum PAPR of the STF sequence corresponding to the RU or MRU.

[0344] Furthermore, PAPR can be calculated using the formula PAPR = max(abs(ifft(STF,N)).^2) / mean(abs(ifft(STF,N)).^2). Wherein, ifft(STF,N) represents the calculation result of the N-point inverse fast Fourier transform (IFFT) of the sequence, the value of N can be four times the number of ifft points required for the sequence, abs() represents the absolute value of the sequence, x.^2 represents the square calculation of each point of the sequence, and mean() represents the average value of the sequence. For a specific description, please refer to the prior art and will not be repeated here.

[0345] For different subcarrier distributions, the first sequence may have different forms (or the first sequence may be constructed by different rotation factor sequences and M sequences) so as to support MIMO power control corresponding to different subcarrier distributions under a larger bandwidth.

[0346] STF -A:B:A A possible implementation is A=4080, B=16, where B=16 indicates that the subcarrier spacing is 16, that is, there are 15 subcarriers between two adjacent subcarriers, and the value of the STF sequence starts from the subcarrier with a subscript of -4080 and ends at the subcarrier with a subscript of 4080. Every 16 subcarriers carry a value of the STF sequence, and the 15 subcarriers between two subcarriers carrying the value of the STF sequence carry zero values.

[0347] An example,

[0348] Among them, the rotation factor sequence C is {1,1,1,1,1,1,1,1,-1,-1,-1,-1,-1,-1,-1,1,1} or {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1,1,-1,-1}.

[0349] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth.

[0350] The description of the above beneficial effects can be found in Table 1.

[0351] Table 1

[0352]

[0353]

[0354] It should be noted that the first column of Table 1 shows the distribution of the first subcarrier. There are different distributions of each size of RU / MRU in the bandwidth. For example, 7×996-tone MRU1-7×996-tone MRU 8 in the third row means that there are 8 7×996-tone MRUs from MRU1 to MRU8. The 8 different distributions of each 7×996-tone MRU in the bandwidth can be seen in Figure 5 . Among them, the contents described in the following table and other rows of Table 1 are similar and will not be repeated here.

[0355] As shown in Table 1, for resources satisfying the first subcarrier distribution, for example:

[0356] For an 8×996-tone RU (see Figure 5 ), the PAPR corresponding to the first sequence is 7.978916dB;

[0357] For multiple 7×996-tone MRUs (see Figure 5 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.741234dB;

[0358] For multiple 6×996-tone MRUs (see Figure 6 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.540611dB;

[0359] For multiple 5×996-tone MRUs (see Figure 7 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 9.193843dB;

[0360] For multiple 4×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.938554 dB;

[0361] For multiple 3×996+384-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 9.147945 dB;

[0362] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 9.299883 dB;

[0363] For multiple 2×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.53897;

[0364] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.984575 dB;

[0365] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.861174 dB;

[0366] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.365109 dB;

[0367] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 4.52867 dB;

[0368] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.9897 dB.

[0369] In summary, through the above-mentioned first sequence, MIMO power control at 640 MHz can be achieved.

[0370] For 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU, 484+242-tone MRU, etc., please refer to the aforementioned descriptions of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and existing standards, which will not be repeated here.

[0371] The STF sequence corresponding to the first subcarrier distribution can be used for data transmission in 640MHz bandwidth, ensuring the PAPR performance when there are 160 and 80MHz puncturing but no 40MHz puncturing, thereby solving the overhead problem of too many MRU indications caused by 40MHz puncturing.

[0372] In addition, the above-mentioned first sequence is designed based on the first seed carrier distribution. When it is carried on the subcarriers included in the resources (such as RU or MRU) in the first seed carrier distribution for transmission, the PAPR performance of the first sequence is better, and thus it can support MIMO power control under a larger bandwidth.

[0373] Another example,

[0374] Among them, the rotation factor sequence C is {1,1,1,1,1,1,1,1,-1,-1,-1,-1,-1,1,-1,-1} or {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,-1,-1,-1,1}.

[0375] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth. For a description of the above beneficial effects, please refer to Table 2.

[0376] Table 2

[0377] Second subcarrier distribution Maximum PAPR(dB) 8×996-tone RU 6.938066 7×996+484-tone MRU 1-7×996+484-tone MRU 16 8.216208 7×996-tone MRU 1-7×996-tone MRU 8 8.896664 6×996+484-tone MRU 1-6×996+484-tone MRU 28 7.934902 6×996-tone MRU 1-6×996-tone MRU 4 7.966123 5×996+484-tone MRU 1 to 5×996+484-tone MRU 24 8.892197 5×996-tone MRU 1-5×996-tone MRU 12 9.026504 4×996+484-tone MRU 1-4×996+484-tone MRU 40 9.279091 4×996-tone RU 1-4×996-tone RU 2 8.938554 3×996+484-tone MRU 1-3×996+484-tone MRU 16 9.147945 3×996-tone MRU 1-3×996-tone MRU 8 9.299883 2×996+484-tone MRU 1-2×996+484-tone MRU 24 9.165938 2×996-tone RU 1-2×996-tone RU 4 7.53897 996+484+242-tone MRU 1-996+484+242-tone MRU 32 7.861174 996+484-tone MRU 1-996+484-tone MRU 16 7.365109 996-tone RU 1-996-tone RU 8 4.52867 484+242-tone MRU 1-484+242-tone MRU 32 6.9897

[0378] As shown in Table 2, for resources satisfying the second subcarrier distribution, for example:

[0379] For an 8×996-tone RU (see Figure 8 ), the PAPR corresponding to the first sequence is 6.938066dB;

[0380] For multiple 7×996+484-tone MRUs (see Figure 8 ), the maximum value of the multiple PAPRs corresponding to the first sequence is 8.216208 dB;

[0381] For multiple 7×996-tone MRUs (see Figure 5 ), the maximum value of the multiple PAPRs corresponding to the first sequence is 8.896664dB;

[0382] For multiple 6×996+484-tone MRUs (see Fig. 9 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.934902dB;

[0383] For multiple 6×996-tone MRUs (see Figure 6 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.966123dB;

[0384] For multiple 5×996+484-tone MRUs (see Fig.10 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.892197dB;

[0385] For multiple 5×996-tone MRUs (see Figure 7 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 9.026504dB;

[0386] For multiple 4×996+484-tone MRUs (see Fig.11 ), the maximum value of the multiple PAPRs corresponding to the first sequence is 9.279091dB;

[0387] For multiple 4×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.938554 dB;

[0388] For multiple 3×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 9.147945 dB;

[0389] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 9.299883 dB;

[0390] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 9.165938 dB;

[0391] For multiple 2×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.53897 dB;

[0392] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.861174 dB;

[0393] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.365109 dB;

[0394] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 4.52867 dB;

[0395] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.9897 dB.

[0396] In summary, through the above-mentioned first sequence, MIMO power control at 640MHz can be achieved. For 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU, etc., please refer to the above description of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and the existing standards, which will not be repeated here.

[0397] In addition, the STF sequence corresponding to the second subcarrier distribution can be used for 640MHz bandwidth data transmission, ensuring the PAPR performance when 160, 80 and 40MHz puncturing are simultaneously achieved, thereby ensuring the improved spectrum utilization brought about by the higher-precision puncturing of 40MHz.

[0398] In addition, the above-mentioned first sequence is designed based on the second seed carrier distribution. When it is carried on the subcarriers included in the resources (such as RU or MRU) in the second seed carrier distribution for transmission, the PAPR performance of the first sequence is better, and thus it can support MIMO power control under a larger bandwidth.

[0399] Another example,

[0400] The rotation factor sequence C is {1,1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1} or {-1,-1,-1,-1,1,1,1,1,1,1,1,1,-1,-1,-1,-1}.

[0401] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth. For a description of the above beneficial effects, please refer to Table 3.

[0402] Table 3

[0403] The third subcarrier distribution Maximum PAPR(dB) 6×996-tone MRU 1-6×996-tone MRU 2 7.874797 5×996+484-tone MRU 1-5×996+484-tone MRU 24 8.950486 5×996-tone MRU 1-5×996-tone MRU 12 8.770729 4×996+484-tone MRU 1-4×996+484-tone MRU 40 8.783164 4×996-tone RU 1-4×996-tone RU 2 7.596877 3×996+484-tone MRU 1-3×996+484-tone MRU 16 8.201994 3×996-tone MRU 1-3×996-tone MRU 8 7.563739 2×996+484-tone MRU 1-2×996+484-tone MRU 24 7.331781 2×996-tone RU 1-2×996-tone RU 4 5.928254 996+484+242-tone MRU 1-996+484+242-tone MRU 32 7.540415 996+484-tone MRU 1-996+484-tone MRU 16 6.426335 996-tone RU 1-996-tone RU 8 4.52867 484+242-tone MRU 1-484+242-tone MRU 32 6.9897

[0404] As shown in Table 3, for resources satisfying the third subcarrier distribution, for example:

[0405] For multiple 6×996-tone MRUs (see Picture 6 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.874797dB;

[0406] For multiple 5×996+484-tone MRUs (see Picture 10 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.950486dB;

[0407] For multiple 5×996-tone MRUs (see Picture 7 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.770729dB;

[0408] For multiple 4×996+484-tone MRUs (see Picture 11 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.783164dB;

[0409] For multiple 4×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.596877 dB;

[0410] For multiple 3×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.201994 dB;

[0411] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.563739 dB;

[0412] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.331781 dB;

[0413] For multiple 2×996-tone RUs, the maximum of multiple PAPRs corresponding to the first sequence is 5.928254 dB;

[0414] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.540415 dB;

[0415] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.426335 dB;

[0416] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 4.52867 dB;

[0417] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.9897 dB.

[0418] In addition, for the descriptions of 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-toneRU, 484+242-tone MRU, etc., please refer to the aforementioned descriptions of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and existing standards, which will not be repeated here.

[0419] In summary, through the above-mentioned first sequence, MIMO power control at 640MHz can be achieved. In addition, the STF sequence corresponding to the third subcarrier distribution can be used for data transmission in 640MHz bandwidth, ensuring the 480MHz transmission formed when punching the first 160MHz or the last 160MHz of 640MHz, and can be applied to bandwidth-limited scenarios (such as: the maximum available bandwidth of the frequency band stipulated in some countries and regions is 500MHz). At the same time, because the bandwidth corresponding to the STF sequence is 640MHz, the STF sequence can also be used for data transmission in 640MHz bandwidth.

[0420] In addition, the above-mentioned first sequence is designed based on the third subcarrier distribution. When it is transmitted on the subcarriers included in the resources (such as RU or MRU) in the third subcarrier distribution, the PAPR performance of the first sequence is better, and it can support MIMO power control under a larger bandwidth.

[0421] Scenario #2: The STF sequence corresponding to the first bandwidth is designed based on the M sequence corresponding to the second bandwidth of 40 MHz.

[0422] The first sequence is through STF -A:B:A Indicates (for the explanation of A, -A and B, please refer to the content of Scenario 1):

[0423] For example, the STF corresponding to 640 MHz -A:·B:A for:

[0424] {c1×{M,1,-M},0,c2×{-M,1,-M},0,

[0425] c3×{M,1,-M},0,c4×{-M,1,-M},0,

[0426] c5×{M,1,-M},0,c6×{-M,1,-M},0,

[0427] c7×{M,1,-M},0,c8×{-M,1,-M},0,

[0428] c9×{M,1,-M},0,c10×{-M,1,-M},0,

[0429] c11×{M,1,-M},0,c12×{-M,1,-M},0,

[0430] c13×{M,1,-M},0,c14×{-M,1,-M},0,

[0431]

[0432] Any of the above c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12, c13, c14, c15 and c16 represents a rotation factor, and the value is 1 or -1.

[0433] The above-mentioned first sequence corresponds to 640 MHz. Thus, the embodiment of the present application can support MIMO power control at 640 MHz.

[0434] Since the first bandwidth is 640MHz and the second bandwidth is 40MHz, there are 16 second sequences in total. Each second sequence needs to be configured with a rotation factor. The value of each rotation factor is 1 or -1, and 2 16 = 65536 possible rotation factor sequences. The rotation factor sequence can be expressed as c = {±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1}. For each rotation factor sequence, a first sequence can be constructed accordingly.

[0435] Due to OFDMA transmission and preamble puncturing, only a part of the frequency domain resources RU or MRU in the complete bandwidth may be used for transmission. At this time, only the first sequence corresponding to the transmitted RU or MRU part remains unchanged, and the first sequence corresponding to the punctured (not used for transmission) RU or MRU part will be set to zero. The PAPR of the first sequence after the partial zeroing operation is calculated to minimize the maximum PAPR of the STF sequence corresponding to the RU or MRU.

[0436] For different subcarrier distributions, the first sequence may have different forms (or be a specific rotation factor sequence) so as to support MIMO power control corresponding to different subcarrier distributions under a larger bandwidth.

[0437] Specifically, another example,

[0438] Wherein, the rotation factor sequence C is {1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1} or {-1,-1,1,1,1,1,1,-1,1,1,1,-1,-1,-1,-1,-1}.

[0439] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth. For a description of the above beneficial effects, please refer to Table 4.

[0440] Table 4

[0441] First type wave distribution Maximum PAPR (dB) 8×996-tone RU 7.300856 7×996-tone MRU 1-7×996-tone MRU 8 7.743556 6×996-tone MRU 1-6×996-tone MRU 4 7.759939 5×996-tone MRU 1-5×996-tone MRU 12 7.608004 4×996-tone RU 1-4×996-tone RU 2 6.614933 3×996+484-tone MRU 1-3×996+484-tone MRU 16 7.32952 3×996-tone MRU 1-3×996-tone MRU 8 7.563739 2×996+484-tone MRU 1-2×996+484-tone MRU 24 7.331781 2×996-tone RU 1-2×996-tone RU 4 7.53897 996+484+242-tone MRU 1-996+484+242-tone MRU 32 7.861174 996+484-tone MRU 1-996+484-tone MRU 16 7.442645 996-tone RU 1-996-tone RU 8 5.044353 484+242-tone MRU 1-484+242-tone MRU 32 6.9897

[0442] As shown in Table 4, for resources satisfying the first subcarrier distribution, for example:

[0443] For an 8×996-tone RU (see Picture 5 ), the PAPR corresponding to the first sequence is 7.300856dB;

[0444] For multiple 7×996-tone MRUs (see Picture 5 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.743556dB;

[0445] For multiple 6×996-tone MRUs (see Picture 6 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.759939 dB;

[0446] For multiple 5×996-tone MRUs (see Picture 7 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.608004dB;

[0447] For multiple 4×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.614933 dB;

[0448] For multiple 3×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.32952 dB;

[0449] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.563739 dB;

[0450] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.331781 dB;

[0451] For multiple 2×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.53897 dB;

[0452] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.861174 dB;

[0453] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.442645 dB;

[0454] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 5.044353 dB;

[0455] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.9897.

[0456] In summary, through the above-mentioned first sequence, MIMO power control at 640 MHz can be achieved.

[0457] For 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU, 484+242-tone MRU, etc., please refer to the aforementioned descriptions of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and existing standards, which will not be repeated here.

[0458] In addition, the STF sequence corresponding to the first subcarrier distribution can be used for data transmission in 640MHz bandwidth, ensuring the PAPR performance when there are 160 and 80MHz puncturing but no 40MHz puncturing, thereby solving the overhead problem of too many MRU indications caused by 40MHz puncturing.

[0459] In addition, the above-mentioned first sequence is designed based on the first seed carrier distribution. When it is carried on the subcarriers included in the resources (such as RU or MRU) in the first seed carrier distribution for transmission, the PAPR performance of the first sequence is better, and thus it can support MIMO power control under a larger bandwidth.

[0460] Another example,

[0461] Among them, the rotation factor sequence C is {1,1,-1,1,1,1,1,-1,-1,-1,-1,-1,-1,1,1,-1} or {-1,-1,1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1,-1,-1,1}.

[0462] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth. For a description of the above beneficial effects, please refer to Table 5.

[0463] Table 5

[0464] Second kind of wave distribution Maximum PAPR (dB) 8×996-tone RU 5.953742 7×996+484-tone MRU 1-7×996+484-tone MRU 16 7.411041 7×996-tone MRU 1-7×996-tone MRU 8 7.613018 6×996+484-tone MRU 1-6×996+484-tone MRU 28 8.274701 6×996-tone MRU 1-6×996-tone MRU 4 7.576385 5×996+484-tone MRU 1-5×996+484-tone MRU 24 7.678987 5×996-tone MRU 1-5×996-tone MRU 12 7.608004 4×996+484-tone MRU 1-4×996+484-tone MRU 40 8.01358 4×996-tone RU 1-4×996-tone RU 2 7.7918 3×996+484-tone MRU 1-3×996+484-tone MRU 16 8.39178 3×996-tone MRU 1-3×996-tone MRU 8 7.689167 2×996+484-tone MRU 1-2×996+484-tone MRU 24 8.076105 2×996-tone RU 1-2×996-tone RU 4 7.896266 996+484+242-tone MRU 1-996+484+242-tone MRU 32 8.100931 996+484-tone MRU 1-996+484-tone MRU 16 7.442645 996-tone RU 1-996-tone RU 8 5.044353 484+242-tone MRU 1-484+242-tone MRU 32 6.9897

[0465] As described in Table 5, for resources satisfying the second subcarrier distribution, for example:

[0466] For an 8×996-tone RU (see Picture 8 ), the PAPR corresponding to the first sequence is 5.953742dB;

[0467] For multiple 7×996+484-tone MRUs (see Picture 8 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.411041dB;

[0468] For multiple 7×996-tone MRUs (see Picture 5 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.613018 dB;

[0469] For multiple 6×996+484-tone MRUs (see Picture 9 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.274701dB;

[0470] For multiple 6×996-tone MRUs (see Picture 6 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.576385dB;

[0471] For multiple 5×996+484-tone MRUs (see Picture 10 ), the maximum value of the multiple PAPRs corresponding to the first sequence is 7.678987 dB;

[0472] For multiple 5×996-tone MRUs (see Picture 7 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.608004dB;

[0473] For multiple 4×996+484-tone MRUs (see Picture 11 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.01358 dB;

[0474] For multiple 4×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.7918 dB;

[0475] For multiple 3×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.39178 dB;

[0476] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.689167 dB;

[0477] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.076105 dB;

[0478] For multiple 2×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.896266 dB;

[0479] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.100931 dB;

[0480] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.442645 dB;

[0481] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 5.044353 dB;

[0482] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.9897 dB.

[0483] In summary, through the above-mentioned first sequence, MIMO power control at 640 MHz can be achieved.

[0484] For 4×996-tone RU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU 2×996-toneRU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU, etc., please refer to the aforementioned descriptions of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and existing standards, which will not be repeated here.

[0485] In addition, the STF sequence corresponding to the second subcarrier distribution can be used for 640MHz bandwidth data transmission, ensuring the PAPR performance when 160, 80 and 40MHz puncturing are simultaneously achieved, thereby ensuring the improved spectrum utilization brought about by the higher-precision puncturing of 40MHz.

[0486] In addition, the above-mentioned first sequence is designed based on the second seed carrier distribution. When it is carried on the subcarriers included in the resources (such as RU or MRU) in the second seed carrier distribution for transmission, the PAPR performance of the first sequence is better, and thus it can support MIMO power control under a larger bandwidth.

[0487] Specifically, another example:

[0488] The rotation factor sequence C is {1,1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,1,-1,1} or {-1,-1,-1,-1,1,-1,1,-1,1,1,1,1,-1,-1,-1,1}.

[0489] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth. For a description of the above beneficial effects, please refer to Table 6.

[0490] Table 6

[0491] Third type wave distribution Maximum PAPR (dB) 6×996-tone MRU 1-6×996-tone MRU 2 6.61321 5×996+484-tone MRU 1-5×996+484-tone MRU 24 7.380306 5×996-tone MRU 1-5×996-tone MRU 12 7.715047 4×996+484-tone MRU 1-4×996+484-tone MRU 40 7.844529 4×996-tone RU 1-4×996-tone RU 2 7.079005 3×996+484-tone MRU 1-3×996+484-tone MRU 16 7.757834 3×996-tone MRU 1-3×996-tone MRU 8 7.413601 2×996+484-tone MRU 1-2×996+484-tone MRU 24 7.768688 2×996-tone RU 1-2×996-tone RU 4 5.928254 996+484+242-tone MRU 1-996+484+242-tone MRU 32 7.664962 996+484-tone MRU 1-996+484-tone MRU 16 7.442645 996-tone RU 1-996-tone RU 8 5.044353 484+242-tone MRU 1-484+242-tone MRU 32 6.9897

[0492] As shown in Table 6, for resources satisfying the third subcarrier distribution, for example:

[0493] For multiple 6×996-tone MRUs (see Picture 6), the maximum value of the multiple PAPRs corresponding to the first sequence is 6.61321dB;

[0494] For multiple 5×996+484-tone MRUs (see Picture 10 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.380306dB;

[0495] For multiple 5×996-tone MRUs (see Picture 7 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.715047 dB;

[0496] For multiple 4×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.844529 dB;

[0497] For multiple 4×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.079005 dB;

[0498] For multiple 3×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.757834 dB;

[0499] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.413601 dB;

[0500] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.768688 dB;

[0501] For multiple 2×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 5.928254 dB;

[0502] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.664962 dB;

[0503] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.442645 dB;

[0504] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 5.044353 dB;

[0505] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.9897 dB.

[0506] In summary, through the above-mentioned first sequence, MIMO power control at 640MHz can be achieved. For the description of 4×996-toneRU, 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU, 484+242-tone MRU, etc., please refer to the above description of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and the existing standards, which will not be repeated here.

[0507] In addition, the STF sequence corresponding to the third subcarrier distribution can be used for data transmission in 640MHz bandwidth, ensuring the 480MHz transmission formed when the first 160MHz or the last 160MHz of 640MHz is punctured, and can be applied to bandwidth-limited scenarios (such as: the maximum available bandwidth of the frequency band stipulated in some countries and regions is 500MHz). At the same time, because the bandwidth corresponding to the STF sequence is 640MHz, the STF sequence can also be used for data transmission in 640MHz bandwidth.

[0508] In addition, the above-mentioned first sequence is designed based on the third subcarrier distribution. When it is transmitted on the subcarriers included in the resources (such as RU or MRU) in the third subcarrier distribution, the PAPR performance of the first sequence is better, and it can support MIMO power control under a larger bandwidth.

[0509] 2. The first bandwidth is 480MHz

[0510] Scenario #3: The STF sequence corresponding to the first bandwidth is designed based on the M sequence corresponding to the second bandwidth of 80 MHz.

[0511] The first sequence is through STF -A:B:A express.

[0512] For example, the STF corresponding to 480 MHz -A:B:A for:

[0513] {c1×{M,1,-M,0,-M,1,-M},0,

[0514] c2×{M,1,-M,0,-M,1,-M},0,

[0515] c3×{M,1,-M,0,-M,1,-M},0,

[0516] c4×{M,1,-M,0,-M,1,-M},0,

[0517] c5×{M,1,-M,0,-M,1,-M},0,

[0518]

[0519] Any of the above c1, c2, c3, c4, c5 and c6 represents a rotation factor, and the value is 1 or -1.

[0520] Through the above-mentioned first sequence, the embodiment of the present application can support MIMO power control at 480 MHz.

[0521] Since the first bandwidth is 480MHz, the second bandwidth is 80MHz, and the configuration in scenario #1 is not reused, there are 6 second sequences in total. Each second sequence needs to be configured with a rotation factor. The value of each rotation factor is 1 or -1, and 2 6 = 64 possible rotation factor sequences. The rotation factor sequence can be expressed as c = {±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1}. For each rotation factor sequence, a first sequence can be constructed accordingly.

[0522] Due to OFDMA transmission and preamble puncturing, only a part of the frequency domain resources RU or MRU in the complete bandwidth may be used for transmission. At this time, only the first sequence corresponding to the transmitted RU or MRU part remains unchanged, and the first sequence corresponding to the punctured (not used for transmission) RU or MRU part will be set to zero. The PAPR of the first sequence after the partial zeroing operation is calculated to minimize the maximum PAPR of the STF sequence corresponding to the RU or MRU.

[0523] STF -A:B:A A possible implementation is that A=3056, B=16.

[0524] Specifically, an example,

[0525] Among them, the rotation factor sequence C is {1,1,1,1,1,1,1,1,-1,-1,-1,-1} or {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1}.

[0526] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth. For a description of the above beneficial effects, please refer to Table 7.

[0527] Table 7

[0528] Fourth type of wave distribution Maximum PAPR (dB) 6×996-tone RU 7.874796884 5×996+484-tone MRU 1-5×996+484-tone MRU 12 8.8727676 5×996-tone MRU 1-5×996-tone MRU 6 8.770728723 4×996+484-tone MRU 1-4×996+484-tone MRU 20 8.704451902 4×996-tone RU 1-4×996-tone RU 2 8.938554129 3×996+484-tone MRU 1-3×996+484-tone MRU 16 9.147944565 3×996-tone MRU 1-3×996-tone MRU 8 7.689166763 2×996+484-tone MRU 1-2×996+484-tone MRU 24 7.984574974 2×996-tone RU 1-2×996-tone RU 4 5.928254173 996+484+242-tone MRU 1-996+484+242-tone MRU 32 7.540414918 996+484-tone MRU 1-996+484-tone MRU 16 6.426335058 996-tone RU 1-996-tone RU 8 4.528670289 484+242-tone MRU 1-484+242-tone MRU 32 6.989700043

[0529] As shown in Table 7, for resources satisfying the fourth subcarrier distribution, for example:

[0530] For a 6×996-tone RU (see Picture 6 ), the maximum PAPR value corresponding to the first sequence is 7.874796884dB;

[0531] For multiple 5×996+484-tone MRUs (see Picture 12 ), the maximum value of the multiple PAPRs corresponding to the first sequence is 8.8727676dB;

[0532] For multiple 5×996-tone MRUs (see Picture 13 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.770728723dB;

[0533] For multiple 4×996+484-tone MRUs (see Picture 14 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 8.704451902dB;

[0534] For multiple 4×996-tone MRU / RU (see Picture 15 ), the maximum value of the multiple PAPRs corresponding to the first sequence is 8.938554129dB;

[0535] For multiple 3×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 9.147944565 dB;

[0536] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.689166763 dB;

[0537] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.984574974dB;

[0538] For multiple 2×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 5.928254173 dB;

[0539] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.540414918 dB;

[0540] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.426335058 dB;

[0541] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 4.528670289 dB;

[0542] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.989700043 dB.

[0543] In addition, for the descriptions of 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU, etc., please refer to the aforementioned descriptions of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and existing standards, which will not be repeated here.

[0544] In summary, through the above-mentioned first sequence, MIMO power control at 480MHz can be achieved. In addition, the STF sequence corresponding to the fourth subcarrier distribution can be used for data transmission in 480MHz bandwidth, which can be directly applied to bandwidth-limited scenarios (such as: the maximum available bandwidth of the frequency band stipulated in some countries and regions is 500MHz).

[0545] In addition, the above-mentioned first sequence is designed based on the fourth subcarrier distribution. When it is transmitted on the subcarriers included in the resources (such as RU or MRU) in the fourth subcarrier distribution, the PAPR performance of the first sequence is better, and it can support MIMO power control under a larger bandwidth.

[0546] Scenario #4: The STF sequence corresponding to the first bandwidth is designed based on the M sequence corresponding to the second bandwidth of 40 MHz.

[0547] The first sequence is through STF -A:B:A express.

[0548] For example, the STF corresponding to 480 MHz -A:B:A for:

[0549] {c1×{M,1,-M},0,c2×{-M,1,-M},0,

[0550] c3×{M,1,-M},0,c4×{-M,1,-M},0,

[0551] c5×{M,1,-M},0,c6×{-M,1,-M},0,

[0552] c7×{M,1,-M},0,c8×{-M,1,-M},0,

[0553] c9×{M,1,-M},0,c10×{-M,1,-M},0,

[0554]

[0555] Any of the above c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11 and c12 represents a rotation factor, and the value is 1 or -1.

[0556] Since the first bandwidth is 480MHz and the second bandwidth is 40MHz, there are 12 second sequences in total. Each second sequence needs to be configured with a rotation factor. The value of each rotation factor is 1 or -1, and 2 12 = 4096 possible rotation factor sequences. The rotation factor sequence can be expressed as c = {±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1,±1}. For each rotation factor sequence, a first sequence can be constructed accordingly.

[0557] Due to OFDMA transmission and preamble puncturing, only a portion of the frequency domain resources RU or MRU within the complete bandwidth may be used for transmission. At this time, only the first sequence corresponding to the transmitted RU or MRU portion remains unchanged, and the first sequence corresponding to the punctured (not used for transmission) RU or MRU portion will be set to zero (in other words, the values ​​of the elements included in the first sequence and the values ​​of the elements corresponding to the unpunctured RU / MRU are mapped to the subcarriers corresponding to the RU / MRU for transmission, and the values ​​carried on the subcarriers included in the punctured RU / MRU are zero). The PAPR of the first sequence after the partial zeroing operation is calculated to minimize the maximum PAPR of the STF sequence corresponding to the RU or MRU.

[0558] Specifically, an example,

[0559] The rotation factor sequence C is {1,1,-1,-1,-1,-1,-1,-1,1,-1,1,-1} or {-1,-1,1,1,1,1,1,-1,-1,-1,-1,1}.

[0560] In this implementation, the PAPR performance of the first sequence is better, thereby being able to support MIMO power control under a larger bandwidth. For a description of the above beneficial effects, please refer to Table 8.

[0561] Table 8

[0562] Fourth type of wave distribution Maximum PAPR (dB) 6×996-tone RU 6.535922656 5×996+484-tone MRU 1-5×996+484-tone MRU 12 7.992143817 5×996-tone MRU 1-5×996-tone MRU 6 7.300210429 4×996+484-tone MRU 1-4×996+484-tone MRU 20 7.934852565 4×996-tone RU 1-4×996-tone RU 2 7.362805143 3×996+484-tone MRU 1-3×996+484-tone MRU 16 7.734484769 3×996-tone MRU 1-3×996-tone MRU 8 7.590650462 2×996+484-tone MRU 1-2×996+484-tone MRU 24 8.005328907 2×996-tone RU 1-2×996-tone RU 4 7.896266286 996+484+242-tone MRU 1-996+484+242-tone MRU 32 8.100931031 996+484-tone MRU 1-996+484-tone MRU 16 7.44264489 996-tone RU 1-996-tone RU 8 5.044352728 484+242-tone MRU 1-484+242-tone MRU 32 6.989700043

[0563] As shown in Table 8, for resources satisfying the fourth subcarrier distribution:

[0564] For a 6×996-tone RU (see Picture 6 ), the maximum PAPR value corresponding to the first sequence is 6.535922656dB;

[0565] For multiple 5×996+484-tone MRUs (see Picture 12 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.992143817 dB;

[0566] For multiple 5×996-tone MRUs (see Picture 13 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.300210429dB;

[0567] For multiple 4×996+484-tone MRUs (see Picture 14 ), the maximum value of the multiple PAPRs corresponding to the first sequence is 7.934852565dB;

[0568] For multiple 4×996-tone MRU / RU (see Picture 15 ), the maximum value among the multiple PAPRs corresponding to the first sequence is 7.362805143dB;

[0569] For multiple 3×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.734484769 dB;

[0570] For multiple 3×996-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.590650462 dB;

[0571] For multiple 2×996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.005328907 dB;

[0572] For multiple 2×996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.896266286 dB;

[0573] For multiple 996+484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 8.100931031 dB;

[0574] For multiple 996+484-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 7.44264489 dB;

[0575] For multiple 996-tone RUs, the maximum value among multiple PAPRs corresponding to the first sequence is 5.044352728 dB;

[0576] For multiple 484+242-tone MRUs, the maximum value among multiple PAPRs corresponding to the first sequence is 6.989700043 dB.

[0577] In addition, for the descriptions of 3×996+484-tone MRU, 3×996-tone MRU, 2×996+484-tone MRU, 2×996-tone RU, 996+484+242-tone MRU, 996+484-tone MRU, 996-tone RU, etc., please refer to the aforementioned descriptions of 7×996-tone MRU, 6×996-tone MRU, 5×996-tone MRU, etc. and existing standards, which will not be repeated here.

[0578] Through the above-mentioned first sequence, the embodiment of the present application can support MIMO power control under 480MHz bandwidth.

[0579] In addition, the STF sequence corresponding to the fourth subcarrier distribution can be used for data transmission in a 480 MHz bandwidth, and can be directly applied to bandwidth-limited scenarios (eg, the maximum available bandwidth of the frequency band specified in some countries and regions is 500 MHz).

[0580] In addition, the above-mentioned first sequence is designed based on the fourth subcarrier distribution. When it is transmitted on the subcarriers included in the resources (such as RU or MRU) in the fourth subcarrier distribution, the PAPR performance of the first sequence is better, and it can support MIMO power control under a larger bandwidth.

[0581] S1602. The first device sends a non-TB PPDU to the second device through the first bandwidth.

[0582] Accordingly, the second device receives the non-TB PPDU through the first bandwidth.

[0583] S1603: The second device processes the non-TB PPDU.

[0584] After the second device receives the non-TB PPDU through the first bandwidth, the second device processes the non-TB PPDU and may perform MIMO power control through the STF sequence in the non-TB PPDU.

[0585] Thus, through the above technical solution, the present application can support MIMO power control under a larger bandwidth.

[0586] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example 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.

[0587] The following, combined Picture 17 to Picture 19 It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, and the contents not described in detail can be referred to the above method embodiment. For the sake of brevity, some contents are not repeated.

[0588] The embodiment of the present application can divide the functional modules of the first device or the second device according to the above method embodiment. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0589] Picture 17 is a schematic block diagram of a communication device provided in an embodiment of the present application. Picture 17 As shown, the communication device may include a transceiver unit 1710 and a processing unit 1720. The transceiver unit 1710 may communicate with the outside, and the processing unit 1720 is used for data processing. The transceiver unit 1710 may also be called a communication interface or a communication unit.

[0590] Optionally, the communication device may further include a storage unit, which may be used to store instructions and / or data, and the processing unit 1720 may read the instructions and / or data in the storage unit so that the communication device implements the aforementioned method embodiment.

[0591] In the first design, the communication device may be the first device in the aforementioned embodiment, or may be a component (such as a chip) of the first device. The communication device may implement the steps or processes corresponding to those performed by the first device in the above method embodiment, wherein the transceiver unit 1710 may be used to perform the transceiver-related operations of the first device in the above method embodiment, and the processing unit 1720 may be used to perform the processing-related operations of the first device in the above method embodiment.

[0592] In a possible implementation, the processing unit 1720 is configured to generate a non-TB PPDU for a first bandwidth, where the non-TB PPDU includes an STF for carrying a first sequence; and the transceiver unit 1710 is configured to send the non-TB PPDU via the first bandwidth.

[0593] In a second design, the communication device may be the second device in the aforementioned embodiment, or may be a component (such as a chip) of the second device.

[0594] The communication device can implement steps or processes corresponding to those executed by the second device in the above method embodiment, wherein the transceiver unit 1710 can be used to execute transceiver-related operations of the second device in the above method embodiment, and the processing unit 1720 can be used to execute processing-related operations of the second device in the above method embodiment.

[0595] In a possible implementation, the transceiver unit 1710 is configured to receive the non-TB PPDU through a first bandwidth; and the processing unit 1720 is configured to process the non-TB PPDU.

[0596] It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, it will not be repeated here.

[0597] It should also be understood that the communication device 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 proprietary processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art may understand that the communication device may be specifically the first device in the above-mentioned embodiment, which may be used to execute the various processes and / or steps corresponding to the first device in the above-mentioned method embodiments; or, the communication device may be specifically the second device in the above-mentioned embodiment, which may be used to execute the various processes and / or steps corresponding to the second device in the above-mentioned method embodiments. To avoid repetition, it will not be repeated here. The above-mentioned transceiver unit 1710 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit 1720 may be a processing circuit.

[0598] Picture 17 The communication device in the embodiment may be a device in the aforementioned embodiment, or may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input / output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. This is not limited here.

[0599] The communication device of each of the above schemes has the function of implementing the corresponding steps performed by the first device or the second device in the above method. The function can be implemented by hardware, or by hardware executing the corresponding software implementation. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver 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 transceiver operations and related processing operations in each method embodiment.

[0600] Picture 18 18 is a schematic block diagram of another communication device provided in an embodiment of the present application. The communication device includes a processor 1810, and the processor 1810 is used to execute a computer program or instruction stored in a memory 1820, or read data / signaling stored in the memory 1820 to execute the method in each method embodiment above. Optionally, the processor 1810 is one or more.

[0601] Alternatively, if Picture 18As shown, the communication device also includes a memory 1820, which is used to store computer programs or instructions and / or data. The memory 1820 can be integrated with the processor 1810, or can also be separately set. Optionally, the memory 1820 is one or more.

[0602] Alternatively, if Picture 18 As shown, the communication device further includes a transceiver 1830, and the transceiver 1830 is used for receiving and / or sending signals. For example, the processing 1810 is used to control the transceiver 1830 to receive and / or send signals.

[0603] As a solution, the communication apparatus is used to implement the operations performed by the first device in each of the above method embodiments.

[0604] For example, the processor 1810 is used to execute the computer program or instructions stored in the memory 1820 to implement the relevant operations of the first device in each of the above method embodiments. Picture 16 The method is performed by the first device in the illustrated embodiment.

[0605] As another solution, the communication device is used to implement the operations performed by the second device in each of the above method embodiments.

[0606] For example, the processor 1810 is used to execute the computer program or instructions stored in the memory 1820 to implement the relevant operations of the second device in each of the above method embodiments. Picture 16 The method is performed by the second device in the illustrated embodiment.

[0607] The processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0608] The memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. 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). For example, RAM may be used as an external cache. As an example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous connection dynamic random access memory (SLDRAM) and direct rambus RAM (DR RAM).

[0609] 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, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0610] 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.

[0611] Picture 19 19 is a schematic block diagram of a chip system provided by an embodiment of the present application. The chip system (or also referred to as a processing system) includes a logic circuit 1910 and an input / output interface 1920 .

[0612] Among them, the logic circuit 1910 can be a processing circuit in the chip system. The logic circuit 1910 can be coupled to the storage unit and call the instructions in the storage unit so that the chip system can implement the methods and functions of each embodiment of the present application. The input / output interface 1920 can be an input / output circuit in the chip system, outputting information processed by the chip system, or inputting data or signaling information to be processed into the chip system for processing.

[0613] Specifically, for example, if the first device is equipped with the chip system, the logic circuit 1910 is coupled to the input / output interface 1920, the logic circuit 1910 can send the non-TB PPDU through the input / output interface 1920, and the non-TB PPDU can be generated by the logic circuit 1910. For another example, if the second device is equipped with the chip system, the logic circuit 1910 is coupled to the input / output interface 1920, the logic circuit 1910 can receive the non-TB PPDU through the input / output interface 1920, and the logic circuit 1910 processes the non-TB PPDU.

[0614] As a solution, the chip is used to implement the operations performed by the first device in each of the above method embodiments.

[0615] For example, the logic circuit 1910 is used to implement the processing-related operations performed by the first device in the above method embodiment, such as: Picture 16 The first device in the embodiment shown performs processing-related operations; the input / output interface 1920 is used to implement the sending and / or receiving-related operations performed by the first device in the above method embodiment, such as, Picture 16 The first device in the illustrated embodiment performs operations related to sending and / or receiving.

[0616] As another solution, the chip system is used to implement the operations performed by the second device in each of the above method embodiments.

[0617] For example, the logic circuit 1910 is used to implement the processing-related operations performed by the second device in the above method embodiment, such as: Picture 16 The processing-related operations performed by the second device in the embodiment shown; the input / output interface 1920 is used to implement the sending and / or receiving-related operations performed by the second device in the above method embodiment, such as, Picture 16 The second device in the illustrated embodiment performs operations related to sending and / or receiving.

[0618] The chip system may be a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip including a modem core.

[0619] An embodiment of the present application also provides a computer-readable storage medium on which computer instructions for implementing the methods executed by the device in the above-mentioned method embodiments are stored.

[0620] For example, when the computer program is executed by a computer, the computer can implement the method performed by the first device in each embodiment of the above method.

[0621] For another example, when the computer program is executed by a computer, the computer can implement the method performed by the second device in each embodiment of the above method.

[0622] An embodiment of the present application also provides a computer program product, comprising instructions, which, when executed by a computer, implement the methods performed by a device (such as a first device or a second device) in the above-mentioned method embodiments.

[0623] An embodiment of the present application also provides a communication system, including the aforementioned first device and second device.

[0624] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

[0625] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0626] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media integrations. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). For example, the aforementioned available medium includes, but is not limited to, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0627] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: include: Generate a non-trigger physical layer protocol data unit non-TB PPDU corresponding to a first bandwidth, wherein the non-TB PPDU includes a short training field for carrying a first sequence, wherein the first sequence is a sequence based on a rotation factor and an M sequence, and the M sequence is {-1,-1,-1,1,1,1,-1,1,1,-1,1,1,-1,1}; The non-TB PPDU is sent via the first bandwidth, and the first bandwidth is greater than 320 MHz.

2. A communication method, characterized in that: include: receiving a non-TB PPDU through a first bandwidth, the non-TB PPDU comprising a short training field for carrying a first sequence, the first sequence being a sequence based on a rotation factor and an M sequence, the M sequence being {-1,-1,-1,1,1,1,-1,1,1,-1,1,1,-1,1}, and the first bandwidth being greater than 320 MHz; Process the non-TB PPDU.

3. The method according to claim 1 or 2, characterized in that: The first bandwidth is 640 MHz, and the first sequence is: {c1×{M,1,-M,0,-M,1,-M},0, c2×{M,1,-M,0,-M,1,-M},0, c3×{M,1,-M,0,-M,1,-M},0, c4×{M,1,-M,0,-M,1,-M},0, c5×{M,1,-M,0,-M,1,-M},0, c6×{M,1,-M,0,-M,1,-M},0, c7×{M,1,-M,0,-M,1,-M},0, Among them, any one of c1, c2, c3, c4, c5, c6, c7 and c8 represents a rotation factor, and the value is 1 or -1.

4. The method according to claim 1 or 2, characterized in that: The first bandwidth is 640 MHz, and the first sequence is: {c1×{M,1,-M},0,c2×{-M,1,-M},0, c3×{M,1,-M},0,c4×{-M,1,-M},0, c5×{M,1,-M},0,c6×{-M,1,-M},0, c7×{M,1,-M},0,c8×{-M,1,-M},0, c9×{M,1,-M},0,c10×{-M,1,-M},0, c11×{M,1,-M},0,c12×{-M,1,-M},0, c13×{M,1,-M},0,c14×{-M,1,-M},0, Among them, any one of c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12, c13, c14, c15 and c16 represents a rotation factor, and the value is 1 or -1.

5. The method according to claim 1 or 2, characterized in that: The first bandwidth is 480 MHz, and the first sequence is: {c1×{M,1,-M,0,-M,1,-M},0, c2×{M,1,-M,0,-M,1,-M},0, c3×{M,1,-M,0,-M,1,-M},0, c4×{M,1,-M,0,-M,1,-M},0, c5×{M,1,-M,0,-M,1,-M},0, Among them, any one of c1, c2, c3, c4, c5 and c6 represents a rotation factor, and the value is 1 or -1.

6. The method according to claim 1 or 2, characterized in that: The first bandwidth is 480 MHz, and the first sequence is: {c1×{M,1,-M},0,c2×{-M,1,-M},0, c3×{M,1,-M},0,c4×{-M,1,-M},0, c5×{M,1,-M},0,c6×{-M,1,-M},0, c7×{M,1,-M},0,c8×{-M,1,-M},0, c9×{M,1,-M},0,c10×{-M,1,-M},0, Among them, any one of c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11 and c12 represents a rotation factor, and the value is 1 or -1.

7. The method according to claim 3, characterized in that The first sequence is: {M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, or, {-M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, or, {M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, M,1,-M,0,-M,1,-M,0, or, {-M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, -M,-1,M,0,M,-1,M,0, or, {M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, M,1,-M,0,-M,1,-M,0, or, {-M,-1,M,0,M,-1,M,0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, M, -1, M, 0, 8. The method according to claim 4, characterized in that The first sequence is: {M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, or, {-M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, or, {M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, -M, 1, -M, 0, or, {-M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, M, -1, M, 0, or, {M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, -M, 1, -M, 0, or, {-M, -1, M, 0, M, -1, M, 0, -M, -1, M, 0, M, -1, M, 0, M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, -M, -1, M, 0, M, -1, M, 0, 9. The method according to claim 5, characterized in that The first sequence is: {M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, M, 1, -M, 0, -M, 1, -M, 0, M,1,-M,0,-M,1,-M,0, -M,-1,M,0,M,-1,M,0, or, {-M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, M,1,-M,0,-M,1,-M,0, 10. The method according to claim 6, characterized in that The first sequence is: {M,1,-M,0,-M,1,-M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,M,-1,M,0, -M,-1,M,0,-M,1,-M,0, -M,-1,M,0,-M,1,-M,0, or, {-M,-1,M,0,M,-1,M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,-M,1,-M,0, M,1,-M,0,M,-1,M,0, M,1,-M,0,M,-1,M,0, 11. A communication device, characterized in that: The communication device comprises means for performing the method according to any one of claims 1 to 10.

12. A communication device, characterized in that: include: A processor, configured to execute computer instructions stored in the memory, so that the communication device performs the method according to any one of claims 1 to 10.

13. The communication device according to claim 12, characterized in that: The communication device further comprises the memory.

14. The communication device according to claim 12 or 13, characterized in that: The communication device further includes a communication interface, which is coupled to the processor and is used to input and / or output information.

15. A computer-readable storage medium, characterized in that: Used to store a computer program, the computer program comprising instructions for implementing the method according to any one of claims 1 to 10.

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