Communication method and apparatus, and system

Abstract

A communication method and apparatus, and a system, which are applied to the technical field of communications, and can be applied to IEEE 802.11 series protocols, such as 802.11bf protocol or 802.11ax next-generation Wi-Fi protocol or IEEE 802.11be next-generation Wi-Fi protocol or integrated millimeter wave (IMMW), and can be applied to Wi-Fi AI, ultra-wideband (UWB), etc. The method comprises: a sensing initiator being capable of sending a control frame at a low frequency, and sending a sensing PPDU at a high frequency, or receiving the sensing PPDU at the high frequency; and a ranging responder being capable of sending a control frame at the low frequency, and sending a ranging PPDU at the high frequency, or receiving the ranging PPDU at the high frequency. The control frame may include, but is not limited to, a polling frame, an NDPA frame, a sounding trigger frame, and a report trigger frame. The method can effectively improve the flexibility of a sensing process or a ranging process, and can improve the sensing performance or the ranging performance.

Description

Communication method, apparatus and system

[0001] The present application claims priority to the Chinese patent application No. 202410458817.7, filed on April 15, 2024, with the State Intellectual Property Office of China, and entitled "Communication method, apparatus and system", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to a communication method, apparatus and system. BACKGROUND

[0003] The institute of electrical and electronics engineers (IEEE) 802.11bf is a new generation of wireless standard focusing on passive object (such as target does not carry any device) sensing. The 802.11bf standard includes two categories of standards, low frequency (such as below 7 gigahertz (sub7GHz), the implementation mainly relies on 802.11ac, 802.11ax, 802.11be, 802.11bn and next generation standards, etc.) and high frequency (such as greater than or equal to 60GHz, the implementation mainly relies on 802.11ad, 802.11ay and next generation standards, etc.).

[0004] In the 802.11bf standard, the sensing device can estimate the parameters (such as speed, distance, angle, etc.) of the sensing target based on the signals it receives, and the estimation results can be used for subsequent action / behavior recognition, etc. In the existing scheme, due to the large difference in bandwidth between high frequency and low frequency, the sensing process of high frequency and the sensing process of low frequency are carried out independently, that is, each has an independent and complete sensing process.

[0005] However, the sensing performance of the above scheme needs to be improved. SUMMARY

[0006] The embodiments of the present application provide a communication method, apparatus and system, which can improve the flexibility of the sensing process and improve the sensing performance.

[0007] In a first aspect, the embodiments of the present application provide a sensing communication method, which is applied to a sensing initiator, and the method comprises:

[0008] The sensing initiator transmits a control frame in a first frequency band, and transmits (such as transmits or receives) a physical layer convergence procedure (PLCP) protocol data unit (PPDU) for sensing in a second frequency band, the second frequency band having a frequency higher than that of the first frequency band.

[0009] The PPDU for sensing can also be referred to as a sensing PPDU, such as various null data packets (NDPs) and the like. The control frame can be a frame involved in a sensing measurement session. For example, the control frame can include, but is not limited to, at least one of a sensing poll frame, a null data packet announcement (NDPA) frame, a sensing probe trigger frame, a sensing report trigger frame, a clear to send (CTS) to self (CTS-to-self) frame, or a report frame.

[0010] For a based-trigger (TB) sensing measurement interaction, the sensing initiator can include an AP, or a functional module in the AP, or a circuit or chip responsible for communication in the AP, such as a modem chip, also referred to as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core, and the like. The sensing responder can include a STA, or a functional module in the STA, or a circuit or chip responsible for communication in the STA, such as a modem chip, also referred to as a baseband chip, or a SoC chip or a SIP chip containing a modem core, and the like.

[0011] For a non-based-trigger (non-TB) sensing measurement interaction, the sensing initiator can include a STA, or a functional module in the STA, or a circuit or chip responsible for communication in the STA, such as a modem chip, also referred to as a baseband chip, or a SoC chip or a SIP chip containing a modem core, and the like. The sensing responder can include an AP, or a functional module in the AP, or a circuit or chip responsible for communication in the AP, such as a modem chip, also referred to as a baseband chip, or a SoC chip or a SIP chip containing a modem core, and the like.

[0012] In the embodiments of the present application, the frequency of the second frequency band is higher than the frequency of the first frequency band. By transmitting the control frame at a lower frequency, the stability and anti-blocking of the control frame transmission can be effectively ensured, the reliability of the control frame transmission is improved, and the smooth progress of the sensing measurement is effectively ensured. Meanwhile, by transmitting the PPDU for sensing at a higher frequency, the sensing measurement can be performed by using a large bandwidth, so that the sensing performance can be effectively improved. Here, the lower frequency band is relative to the second frequency band, and the higher frequency band is relative to the first frequency band.

[0013] As a possible implementation manner 1, the sensing initiator transmits the control frame in the first frequency band, and transmits the PPDU for sensing in the second frequency band, which includes the following implementation manners.

[0014] The sensing initiator transmits the sensing NDPA frame in the first frequency band, and transmits the first PPDU for sensing in the second frequency band.

[0015] In the embodiments of the present application, the sensing NDPA frame can be used to schedule one or more sensing responders.

[0016] In combination with the implementation manner 1 in the first aspect, in a possible implementation manner, the method further includes the following implementation manners.

[0017] The sensing initiator transmits the sensing probe trigger frame in the first frequency band, and receives the second PPDU for sensing in the second frequency band; or, the sensing initiator transmits the sensing probe trigger frame in the second frequency band, and receives the second PPDU for sensing in the second frequency band; or, the sensing initiator transmits the sensing probe trigger frame in the first frequency band, and receives the second PPDU for sensing in the first frequency band; or, the sensing initiator transmits the sensing probe trigger frame in the second frequency band, and receives the second PPDU for sensing in the first frequency band.

[0018] In the embodiments of the present application, the sensing probe trigger frame can be used to allocate the measurement resource for the sensing responder. By transmitting the first PPDU and the second PPDU in the second frequency band, the large bandwidth at the high frequency can be effectively used for the sensing measurement, the sensing measurement accuracy is improved, and the performance is improved.

[0019] In the embodiments of the present application, by transmitting the sensing probe trigger frame in the first frequency band, the stability and anti-blocking of the sensing probe trigger frame transmission can be effectively ensured, the reliability of the sensing probe trigger frame transmission is improved, and the smooth progress of the sensing measurement is effectively ensured.

[0020] In the embodiments of the present application, by transmitting the sensing probe trigger frame in the second frequency band, the switching times of the high and low frequencies and the complexity of the channel access can be effectively reduced, the efficiency of the sensing measurement can be effectively ensured, and the complexity of the sensing measurement is reduced.

[0021] With reference to the implementation 1 in the first aspect, in a possible implementation, the method further includes:

[0022] The sensing initiator transmits the report trigger frame in the first frequency band and receives the report frame in the first frequency band; or, the sensing initiator transmits the report trigger frame in the second frequency band and receives the report frame in the second frequency band; or, the sensing initiator transmits the report trigger frame in the second frequency band and receives the report frame in the first frequency band; or, the sensing initiator transmits the report frame in the first frequency band and receives the report frame in the second frequency band.

[0023] In the embodiments of the present application, the report trigger frame and the report frame are transmitted in the first frequency band, which can effectively ensure the stability and anti-blocking of the transmission of the report trigger frame and the report frame, improve the transmission reliability, and ensure that the feedback of the sensing measurement result can be carried out smoothly. The report trigger frame and the report frame are transmitted in the second frequency band, which can effectively reduce the switching times of high and low frequencies and the complexity of channel access, effectively ensure the efficiency of sensing measurement, and reduce the complexity of sensing measurement.

[0024] With reference to the implementation 1 in the first aspect, in a possible implementation, the method further includes:

[0025] The sensing initiator transmits the sensing poll frame in the first frequency band and receives the reply frame of the sensing poll frame in the first frequency band; or, the sensing initiator transmits the sensing poll frame in the second frequency band and receives the reply frame of the sensing poll frame in the second frequency band; or, the sensing initiator transmits the sensing poll frame in the first frequency band and receives the reply frame of the sensing poll frame in the second frequency band; or, the sensing initiator transmits the sensing poll frame in the second frequency band and receives the reply frame of the sensing poll frame in the first frequency band.

[0026] The beneficial effects of transmitting the control frame on the first frequency band or the second frequency band can be referred to the description above, which will not be repeated here.

[0027] In a possible implementation, the method further includes: the sensing initiator transmits the sensing poll frame to a sensing by proxy (SBP) initiator in the first frequency band.

[0028] For example, the SBP initiator is a STA that has no association with the sensing initiator. For a STA associated with the sensing initiator, the sensing initiator can transmit the sensing poll frame to the STA or can not transmit the sensing poll frame, which is not limited in the embodiments of the present application.

[0029] In a possible implementation, the sensing initiator transmits a sensing probe trigger frame in the second frequency band, comprising:

[0030] The sensing initiator transmits the sensing probe trigger frame corresponding to the first sensing responder and the sensing probe trigger frame corresponding to the second sensing responder in the second frequency band at the same time; or, the sensing initiator transmits the sensing probe trigger frame corresponding to the first sensing responder and the sensing probe trigger frame corresponding to the second sensing responder in the second frequency band at different time respectively.

[0031] In a possible implementation, the sensing initiator receives the second PPDU for sensing in the second frequency band, comprising:

[0032] The sensing initiator receives the second PPDU from the first sensing responder and the second PPDU from the second sensing responder in the second frequency band at the same time; or, the sensing initiator receives the second PPDU from the first sensing responder and the second PPDU from the second sensing responder in the second frequency band at different time respectively.

[0033] As a possible implementation 2, the sensing initiator transmits the control frame in the first frequency band, and transmits the PPDU for sensing in the second frequency band, comprising:

[0034] The sensing initiator transmits the sensing probe trigger frame in the first frequency band, and receives the second PPDU for sensing in the second frequency band.

[0035] With reference to the implementation 2 in the first aspect, in a possible implementation, the method further comprises:

[0036] The sensing initiator transmits the sensing NDPA frame in the second frequency band, and transmits the first PPDU for sensing in the second frequency band; or, the sensing initiator transmits the sensing NDPA frame in the first frequency band, and transmits the first PPDU for sensing in the first frequency band; or, the sensing initiator transmits the sensing NDPA frame in the first frequency band, and transmits the first PPDU for sensing in the second frequency band; or, the sensing initiator transmits the sensing NDPA frame in the second frequency band, and transmits the first PPDU for sensing in the first frequency band.

[0037] With reference to the implementation 2 in the first aspect, in a possible implementation, the method further comprises:

[0038] The sensing initiator transmits a report trigger frame in the first frequency band and receives a report frame in the first frequency band; or, the sensing initiator transmits a report trigger frame in the second frequency band and receives a report frame in the second frequency band; or, the sensing initiator transmits a report trigger frame in the first frequency band and receives a report frame in the second frequency band; or, the sensing initiator transmits a report trigger frame in the second frequency band and receives a report frame in the first frequency band.

[0039] With reference to the implementation 2 in the first aspect, in a possible implementation, the method further includes:

[0040] The sensing initiator transmits a sensing poll frame in the first frequency band and receives a reply frame of the sensing poll frame in the first frequency band; or, the sensing initiator transmits a sensing poll frame in the second frequency band and receives a reply frame of the sensing poll frame in the second frequency band; or, the sensing initiator transmits a sensing poll frame in the first frequency band and receives a reply frame of the sensing poll frame in the second frequency band; or, the sensing initiator transmits a sensing poll frame in the second frequency band and receives a reply frame of the sensing poll frame in the first frequency band.

[0041] As a possible implementation 3, the sensing initiator transmits a control frame in the first frequency band and transmits a PPDU for sensing in the second frequency band includes:

[0042] The sensing initiator transmits a sensing poll frame in the first frequency band and transmits a first PPDU for sensing in the second frequency band; or, the sensing initiator transmits a sensing poll frame in the first frequency band and receives a second PPDU for sensing in the second frequency band; or, the sensing initiator transmits a sensing poll frame in the first frequency band, transmits a first PPDU for sensing in the second frequency band, and receives a second PPDU for sensing in the second frequency band.

[0043] With reference to the implementation 3 in the first aspect, in a possible implementation, the method further includes: the sensing initiator transmits a sensing NDPA frame in the second frequency band.

[0044] With reference to the implementation 3 in the first aspect, in a possible implementation, the method further includes: the sensing initiator transmits a sensing probe trigger frame in the second frequency band.

[0045] With reference to the implementation 3 in the first aspect, in a possible implementation, the method further includes:

[0046] The sensing initiator transmits a report trigger frame in the first frequency band and receives a report frame in the first frequency band; or, the sensing initiator transmits a report trigger frame in the second frequency band and receives a report frame in the second frequency band; or, the sensing initiator transmits a report trigger frame in the first frequency band and receives a report frame in the second frequency band; or, the sensing initiator transmits a report trigger frame in the second frequency band and receives a report frame in the first frequency band.

[0047] As a possible implementation form 4, the sensing initiator transmits a control frame in the first frequency band and transmits a PPDU for sensing in the second frequency band, and the method comprises:

[0048] The sensing initiator transmits a report trigger frame in the first frequency band after transmitting a first PPDU for sensing in the second frequency band; or, the sensing initiator transmits a report trigger frame in the first frequency band after receiving a second PPDU for sensing in the second frequency band; or, the sensing initiator transmits a report trigger frame in the first frequency band after transmitting a first PPDU for sensing in the second frequency band and receiving a second PPDU for sensing in the second frequency band.

[0049] With reference to the fourth implementation form of the first aspect, in a possible implementation form, the method further comprises:

[0050] The sensing initiator transmits a sensing NDPA frame in the first frequency band; or, the sensing initiator transmits a sensing NDPA frame in the second frequency band.

[0051] With reference to the fourth implementation form of the first aspect, in a possible implementation form, the method further comprises:

[0052] The sensing initiator transmits a sensing probe trigger frame in the first frequency band; or, the sensing initiator transmits a sensing probe trigger frame in the second frequency band.

[0053] With reference to the fourth implementation form of the first aspect, in a possible implementation form, the method further comprises:

[0054] The sensing initiator receives a report frame in the first frequency band; or, the sensing initiator receives a report frame in the second frequency band.

[0055] With reference to the fourth implementation form of the first aspect, in a possible implementation form, the method further comprises:

[0056] The sensing initiator transmits a sensing poll frame in the first frequency band; or, the sensing initiator transmits a sensing poll frame in the second frequency band.

[0057] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0058] The sensing initiator receives a reply frame of the sensing poll frame in the first frequency band, or receives a reply frame of the sensing poll frame in the second frequency band.

[0059] As a possible implementation 5, the sensing initiator transmits the control frame in the first frequency band, and transmits the PPDU for sensing in the second frequency band, including:

[0060] The sensing initiator transmits the sensing NDPA frame in the first frequency band, and transmits the first PPDU for sensing in the second frequency band; or, the sensing initiator transmits the sensing NDPA frame in the first frequency band, and receives the second PPDU for sensing in the second frequency band; or, the sensing initiator transmits the sensing NDPA frame in the first frequency band, transmits the first PPDU for sensing in the second frequency band, and receives the second PPDU for sensing in the second frequency band.

[0061] With reference to the implementation 5 in the first aspect, in a possible implementation, the method further includes:

[0062] The sensing initiator receives the report frame in the first frequency band, or receives the report frame in the second frequency band.

[0063] With reference to the implementation 5 in the first aspect, in a possible implementation, the method further includes:

[0064] The sensing initiator transmits the report trigger frame in the first frequency band, or transmits the report trigger frame in the second frequency band.

[0065] In a possible implementation, the frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

[0066] The present application embodiment is not limited to the sequence of the steps in the above-mentioned various implementations.

[0067] In a second aspect, the present application embodiment provides a sensing communication method, applied to a sensing response end, including:

[0068] The sensing response end receives the control frame in the first frequency band, and transmits the PPDU for sensing in the second frequency band, the frequency of the second frequency band being higher than the frequency of the first frequency band.

[0069] As a possible implementation 1, the sensing response end receives a control frame in a first frequency band, and transmits a PPDU for sensing in a second frequency band.

[0070] The sensing response end receives a sensing NDPA frame in the first frequency band, and receives a first PPDU for sensing in the second frequency band.

[0071] In combination with the implementation 1 in the second aspect, in a possible implementation, the method further includes:

[0072] The sensing response end receives a sensing probe trigger frame in the first frequency band, and transmits a second PPDU for sensing in the first frequency band; or, the sensing response end receives a sensing probe trigger frame in the second frequency band, and transmits a second PPDU for sensing in the second frequency band; or, the sensing response end receives a sensing probe trigger frame in the first frequency band, and transmits a second PPDU for sensing in the second frequency band; or, the sensing response end receives a sensing probe trigger frame in the second frequency band, and transmits a second PPDU for sensing in the first frequency band.

[0073] In combination with the implementation 1 in the second aspect, in a possible implementation, the method further includes:

[0074] The sensing response end receives a report trigger frame in the first frequency band, and transmits a report frame in the first frequency band; or, the sensing response end receives a report trigger frame in the second frequency band, and transmits a report frame in the second frequency band; or, the sensing response end receives a report trigger frame in the second frequency band, and transmits a report frame in the first frequency band; or, the sensing response end receives a report trigger frame in the first frequency band, and transmits a report frame in the second frequency band.

[0075] In combination with the implementation 1 in the second aspect, in a possible implementation, the method further includes:

[0076] The sensing response end receives a sensing poll frame in the first frequency band, and transmits a reply frame of the sensing poll frame in the first frequency band; or, the sensing response end receives a sensing poll frame in the second frequency band, and transmits a reply frame of the sensing poll frame in the second frequency band; or, the sensing response end receives a sensing poll frame in the first frequency band, and transmits a reply frame of the sensing poll frame in the second frequency band; or, the sensing response end receives a sensing poll frame in the second frequency band, and transmits a reply frame of the sensing poll frame in the first frequency band.

[0077] As a possible implementation 2, the sensing response end receives a control frame in a first frequency band, and transmits a PPDU for sensing in a second frequency band includes:

[0078] The sensing responding end receives a sensing probe trigger frame in the first frequency band, and transmits a second PPDU for sensing in the second frequency band.

[0079] With reference to the third aspect, in a possible implementation of the third aspect, the method further includes:

[0080] The sensing responding end receives a sensing NDPA frame in the second frequency band, and receives a first PPDU for sensing in the second frequency band; or, the sensing responding end receives a sensing NDPA frame in the first frequency band, and receives a first PPDU for sensing in the first frequency band; or, the sensing responding end receives a sensing NDPA frame in the first frequency band, and receives a first PPDU for sensing in the second frequency band; or, the sensing responding end receives a sensing NDPA frame in the second frequency band, and receives a first PPDU for sensing in the first frequency band.

[0081] With reference to the third aspect, in a possible implementation of the third aspect, the method further includes:

[0082] The sensing responding end receives a report trigger frame in the first frequency band, and transmits a report frame in the first frequency band; or, the sensing responding end receives a report trigger frame in the second frequency band, and transmits a report frame in the second frequency band; or, the sensing responding end receives a report trigger frame in the first frequency band, and transmits a report frame in the second frequency band; or, the sensing responding end receives a report trigger frame in the second frequency band, and transmits a report frame in the first frequency band.

[0083] With reference to the third aspect, in a possible implementation of the third aspect, the method further includes:

[0084] The sensing responding end receives a sensing poll frame in the first frequency band, and transmits a reply frame of the sensing poll frame in the first frequency band; or, the sensing responding end receives a sensing poll frame in the second frequency band, and transmits a reply frame of the sensing poll frame in the second frequency band; or, the sensing responding end receives a sensing poll frame in the first frequency band, and transmits a reply frame of the sensing poll frame in the second frequency band; or, the sensing responding end receives a sensing poll frame in the second frequency band, and transmits a reply frame of the sensing poll frame in the first frequency band.

[0085] As a possible implementation of the third aspect, the sensing responding end receives a control frame in the first frequency band, and transmits a PPDU for sensing in the second frequency band includes:

[0086] The sensing response end receives a sensing poll frame in the first frequency band, and receives a first PPDU for sensing in the second frequency band; or, the sensing response end receives a sensing poll frame in the first frequency band, and transmits a second PPDU for sensing in the second frequency band; or, the sensing response end receives a sensing poll frame in the first frequency band, receives a first PPDU for sensing in the second frequency band, and transmits a second PPDU for sensing in the second frequency band.

[0087] With reference to the implementation 3 in the second aspect, in a possible implementation, the method further includes: the sensing response end receives a sensing NDPA frame in the second frequency band.

[0088] With reference to the implementation 3 in the second aspect, in a possible implementation, the method further includes: the sensing response end receives a sensing probe trigger frame in the second frequency band.

[0089] With reference to the implementation 3 in the second aspect, in a possible implementation, the method further includes:

[0090] The sensing response end receives a report trigger frame in the first frequency band, and transmits a report frame in the first frequency band; or, the sensing response end receives a report trigger frame in the second frequency band, and transmits a report frame in the second frequency band; or, the sensing response end receives a report trigger frame in the first frequency band, and transmits a report frame in the second frequency band; or, the sensing response end receives a report trigger frame in the second frequency band, and transmits a report frame in the first frequency band.

[0091] As a possible implementation 4, the sensing response end receives a control frame in the first frequency band, and transmits a PPDU for sensing in the second frequency band includes:

[0092] The sensing response end receives a report trigger frame in the first frequency band after receiving a first PPDU for sensing in the second frequency band; or, the sensing response end receives a report trigger frame in the first frequency band after transmitting a second PPDU for sensing in the second frequency band; or, the sensing response end receives a report trigger frame in the first frequency band after receiving a first PPDU for sensing in the second frequency band and transmitting a second PPDU for sensing in the second frequency band.

[0093] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0094] The sensing response end receives a sensing NDPA frame in the first frequency band; or, the sensing response end receives a sensing NDPA frame in the second frequency band.

[0095] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0096] The sensing response end receives a sensing probe trigger frame in the first frequency band; or, the sensing response end receives a sensing probe trigger frame in the second frequency band.

[0097] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0098] The sensing response end sends a report frame in the first frequency band; or, the sensing response end sends a report frame in the second frequency band.

[0099] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0100] The sensing response end receives a sensing poll frame in the first frequency band; or, the sensing response end receives a sensing poll frame in the second frequency band.

[0101] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0102] The sensing response end sends a reply frame of the sensing poll frame in the first frequency band; or, the sensing response end sends a reply frame of the sensing poll frame in the second frequency band.

[0103] As a possible implementation 5, the sensing response end receives a control frame in the first frequency band, and transmits a PPDU for sensing in the second frequency band, including:

[0104] The sensing response end receives a sensing NDPA frame in the first frequency band, and receives a first PPDU for sensing in the second frequency band; or, the sensing response end receives a sensing NDPA frame in the first frequency band, and sends a second PPDU for sensing in the second frequency band; or, the sensing response end receives a sensing NDPA frame in the first frequency band, receives a first PPDU for sensing in the second frequency band, and sends a second PPDU for sensing in the second frequency band.

[0105] With reference to the implementation 5 in the second aspect, in a possible implementation, the method further includes:

[0106] The sensing response end sends a report frame in the first frequency band; or, the sensing response end sends a report frame in the second frequency band.

[0107] With reference to the implementation 5 in the second aspect, in a possible implementation, the method further includes:

[0108] The sensing response end receives a report trigger frame in the first frequency band; or the sensing response end receives a report trigger frame in the second frequency band.

[0109] In a possible implementation, the frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

[0110] The description of the second aspect can refer to the first aspect, and will not be described in detail here.

[0111] In a third aspect, an embodiment of the present application provides a ranging communication method, the method being applied to a first device, and the method comprising:

[0112] The first device transmits a control frame in a first frequency band, and transmits a PPDU for ranging in a second frequency band, the frequency of the second frequency band being higher than the frequency of the first frequency band.

[0113] The PPDU for ranging can also be referred to as a ranging PPDU for short. The control frame can be a frame involved in a ranging measurement session. For example, the control frame can include, but is not limited to, at least one of the following: a ranging poll frame, a ranging NDPA frame, a ranging probe trigger frame, a ranging report trigger frame, a clear to send (CTS)-to-self frame, or a report frame. The report frame can include at least one of the following: a ranging response-end-to-ranging initiator-end report frame or a ranging initiator-end-to-ranging response-end report frame.

[0114] In an embodiment of the present application, for a TB ranging measurement interaction, the first device can be a ranging response end, and the second device can be a ranging initiator end. For a non-TB ranging measurement interaction, the first device can be a ranging initiator end, and the second device can be a ranging response end.

[0115] For a based-trigger (TB) ranging measurement interaction, or for a non-based-trigger (non-TB) ranging measurement interaction, the first device can include an AP, or a functional module in the AP, or a circuit or chip responsible for communication in the AP, such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core, and the like. The second device can include a STA, or a functional module in the STA, or a circuit or chip responsible for communication in the STA, such as a modem chip, also known as a baseband chip, or a SoC chip or a SIP chip containing a modem core, and the like.

[0116] As a possible implementation 1, the first device sending a control frame in a first frequency band and transmitting a PPDU for ranging in a second frequency band includes: the first device sending a ranging NDPA frame in the first frequency band and sending a first PPDU for ranging in the second frequency band.

[0117] With reference to the implementation 1 in the third aspect, in a possible implementation, the method further includes:

[0118] The first device sends a ranging probe trigger frame in the first frequency band and receives a second PPDU for ranging in the second frequency band; or, the first device sends a ranging probe trigger frame in the second frequency band and receives a second PPDU for ranging in the second frequency band; or, the first device sends a ranging probe trigger frame in the first frequency band and receives a second PPDU for ranging in the first frequency band; or, the first device sends a ranging probe trigger frame in the second frequency band and receives a second PPDU for ranging in the first frequency band.

[0119] With reference to the implementation 1 in the third aspect, in a possible implementation, the method further includes:

[0120] The first device sends the ranging response-end-to-ranging initiator-end report frame in the first frequency band; or, the first device sends the ranging response-end-to-ranging initiator-end report frame in the second frequency band.

[0121] With reference to the implementation 1 in the third aspect, in a possible implementation, the method further includes:

[0122] The first device receives the ranging initiator-end-to-ranging response-end report frame in the first frequency band; or, the first device receives the ranging initiator-end-to-ranging response-end report frame in the second frequency band.

[0123] With reference to the implementation 1 in the third aspect, in a possible implementation, the method further includes:

[0124] The first device sends a ranging poll frame in the first frequency band and receives a reply frame of the ranging poll frame in the first frequency band; or, the first device sends a ranging poll frame in the second frequency band and receives a reply frame of the ranging poll frame in the second frequency band; or, the first device sends a ranging poll frame in the first frequency band and receives a reply frame of the ranging poll frame in the second frequency band; or, the first device sends a ranging poll frame in the second frequency band and receives a reply frame of the ranging poll frame in the first frequency band.

[0125] As a possible implementation 2, the first device transmits a control frame in a first frequency band, and transmits a PPDU for ranging in a second frequency band, which comprises:

[0126] The first device transmits a ranging probe trigger frame in the first frequency band, and receives a second PPDU for ranging in the second frequency band.

[0127] With reference to the implementation 2 in the third aspect, in a possible implementation, the method further comprises:

[0128] The first device transmits a ranging NDPA frame in the second frequency band, and transmits a first PPDU for ranging in the second frequency band; or, the first device transmits a ranging NDPA frame in the first frequency band, and transmits a first PPDU for ranging in the first frequency band; or, the first device transmits a ranging NDPA frame in the first frequency band, and transmits a first PPDU for ranging in the second frequency band; or, the first device transmits a ranging NDPA frame in the second frequency band, and transmits a first PPDU for ranging in the first frequency band.

[0129] With reference to the implementation 2 in the third aspect, in a possible implementation, the method further comprises:

[0130] The first device transmits the ranging response-end-to-ranging initiator-end report frame in the first frequency band; or, the first device transmits the ranging response-end-to-ranging initiator-end report frame in the second frequency band.

[0131] With reference to the implementation 2 in the third aspect, in a possible implementation, the method further comprises:

[0132] The first device receives the ranging initiator-end-to-ranging response-end report frame in the first frequency band; or, the first device receives the ranging initiator-end-to-ranging response-end report frame in the second frequency band.

[0133] With reference to the implementation 2 in the third aspect, in a possible implementation, the method further comprises:

[0134] The first device transmits a ranging poll frame in the first frequency band, and receives a reply frame of the ranging poll frame in the first frequency band; or, the first device transmits a ranging poll frame in the second frequency band, and receives a reply frame of the ranging poll frame in the second frequency band; or, the first device transmits a ranging poll frame in the first frequency band, and receives a reply frame of the ranging poll frame in the second frequency band; or, the first device transmits a ranging poll frame in the second frequency band, and receives a reply frame of the ranging poll frame in the first frequency band.

[0135] As a possible implementation 3, the first device sends a control frame in the first frequency band, and transmits the PPDU for ranging in the second frequency band includes:

[0136] The first device sends a ranging poll frame in the first frequency band, and sends the first PPDU for ranging in the second frequency band; or, the first device sends a ranging poll frame in the first frequency band, and receives the second PPDU for sensing in the second frequency band; or, the first device sends a ranging poll frame in the first frequency band, and sends the first PPDU for ranging in the second frequency band, and receives the second PPDU for ranging in the second frequency band.

[0137] With reference to the implementation 3 in the third aspect, in a possible implementation, the method further includes: the first device sends a ranging NDPA frame in the second frequency band.

[0138] With reference to the implementation 3 in the third aspect, in a possible implementation, the method further includes: the first device sends a ranging probe trigger frame in the second frequency band.

[0139] With reference to the implementation 3 in the third aspect, in a possible implementation, the method further includes:

[0140] The first device sends the ranging response-end-to-ranging initiator-end report frame in the first frequency band; or, the first device sends the ranging response-end-to-ranging initiator-end report frame in the second frequency band.

[0141] With reference to the implementation 3 in the third aspect, in a possible implementation, the method further includes:

[0142] The first device receives the ranging initiator-end-to-ranging response-end report frame in the first frequency band; or, the first device receives the ranging initiator-end-to-ranging response-end report frame in the second frequency band.

[0143] As a possible implementation 4, the first device sends a control frame in the first frequency band, and transmits the PPDU for ranging in the second frequency band includes:

[0144] The first device transmits the ranging response-end-to-ranging initiator-end report frame in the first frequency band after transmitting the first PPDU for ranging in the second frequency band; or, the first device transmits the ranging response-end-to-ranging initiator-end report frame in the first frequency band after receiving the second PPDU for ranging in the second frequency band; or, the first device transmits the ranging response-end-to-ranging initiator-end report frame in the first frequency band after transmitting the first PPDU for ranging in the second frequency band and receiving the second PPDU for ranging in the second frequency band.

[0145] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0146] The first device transmits the ranging NDPA frame in the first frequency band; or, the first device transmits the ranging NDPA frame in the second frequency band.

[0147] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0148] The first device transmits the ranging probe trigger frame in the first frequency band; or, the first device transmits the ranging probe trigger frame in the second frequency band.

[0149] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0150] The first device receives the ranging initiator-end-to-ranging response-end report frame in the first frequency band; or, the first device receives the ranging initiator-end-to-ranging response-end report frame in the second frequency band.

[0151] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0152] The first device transmits the ranging poll frame in the first frequency band; or, the first device transmits the ranging poll frame in the second frequency band.

[0153] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0154] The first device receives the reply frame of the ranging poll frame in the first frequency band; or, the first device receives the reply frame of the ranging poll frame in the second frequency band.

[0155] As a possible implementation manner 5, the first device transmits the control frame in the first frequency band, and the first device transmits the PPDU for ranging in the second frequency band includes:

[0156] The ranging initiator transmits a ranging NDPA frame in the first frequency band, and transmits a first PPDU for ranging in the second frequency band; or, the ranging initiator transmits a ranging NDPA frame in the first frequency band, and receives a second PPDU for ranging in the second frequency band; or, the ranging initiator transmits a ranging NDPA frame in the first frequency band, transmits a first PPDU for ranging in the second frequency band, and receives a second PPDU for ranging in the second frequency band.

[0157] With reference to the sixth aspect, in a possible implementation, the method further includes:

[0158] The sensing initiator receives a ranging responder-to-ranging initiator report frame in the first frequency band; or, the sensing initiator receives a ranging responder-to-ranging initiator report frame in the second frequency band.

[0159] With reference to the sixth aspect, in a possible implementation, the method further includes:

[0160] The sensing initiator transmits a ranging initiator-to-ranging responder report frame in the first frequency band; or, the sensing initiator transmits a ranging initiator-to-ranging responder report frame in the second frequency band.

[0161] In a possible implementation, the frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

[0162] In a possible implementation, the frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

[0163] The fourth aspect, the embodiments of the present application provide a ranging communication method, the method is applied to a second device, and the method includes:

[0164] The fourth aspect, the embodiments of the present application provide a ranging communication method, the method is applied to a second device, and the method includes:

[0165] As a possible implementation 1, the second device receives a control frame in the first frequency band, and transmits a PPDU for ranging in the second frequency band includes:

[0166] The second device receives a ranging NDPA frame in the first frequency band, and receives a first PPDU for ranging in the second frequency band.

[0167] With reference to the sixth aspect, in a possible implementation, the method further includes:

[0168] The second device receives a ranging probe trigger frame in the first frequency band and transmits a second PPDU for ranging in the second frequency band; or, the second device receives a ranging probe trigger frame in the second frequency band and transmits a second PPDU for ranging in the second frequency band; or, the second device receives a ranging probe trigger frame in the first frequency band and transmits a second PPDU for ranging in the first frequency band; or, the second device receives a ranging probe trigger frame in the second frequency band and transmits a second PPDU for ranging in the first frequency band.

[0169] With reference to the thirteenth aspect, in a possible implementation of the method, the method further includes:

[0170] The second device receives the ranging response-end-to-ranging initiator-end report frame in the first frequency band; or, the second device receives the ranging response-end-to-ranging initiator-end report frame in the second frequency band.

[0171] With reference to the thirteenth aspect, in a possible implementation of the method, the method further includes:

[0172] The second device transmits the ranging initiator-end-to-ranging response-end report frame in the first frequency band; or, the second device transmits the ranging initiator-end-to-ranging response-end report frame in the second frequency band.

[0173] With reference to the thirteenth aspect, in a possible implementation of the method, the method further includes:

[0174] The second device receives a ranging probe trigger frame in the first frequency band and transmits a second PPDU for ranging in the second frequency band; or, the second device receives a ranging probe trigger frame in the second frequency band and transmits a second PPDU for ranging in the second frequency band; or, the second device receives a ranging probe trigger frame in the first frequency band and transmits a second PPDU for ranging in the first frequency band; or, the second device receives a ranging probe trigger frame in the second frequency band and transmits a second PPDU for ranging in the first frequency band.

[0175] As a possible implementation of the second device receiving a control frame in the first frequency band and transmitting a PPDU for ranging in the second frequency band, in a possible implementation 2, the method further includes:

[0176] The second device receives a ranging probe trigger frame in the first frequency band and transmits a second PPDU for ranging in the second frequency band.

[0177] With reference to the thirteenth aspect, in a possible implementation of the method, the method further includes:

[0178] The second device receives a ranging NDPA frame in the second frequency band, and receives a first PPDU for ranging in the second frequency band; or, the second device receives a ranging NDPA frame in the first frequency band, and receives a first PPDU for ranging in the first frequency band; or, the second device receives a ranging NDPA frame in the first frequency band, and receives a first PPDU for ranging in the second frequency band; or, the second device receives a ranging NDPA frame in the second frequency band, and receives a first PPDU for ranging in the first frequency band.

[0179] With reference to the 2nd implementation manner of the fourth aspect, in a possible implementation manner, the method further includes:

[0180] The second device receives a ranging response-end-to-ranging initiation-end report frame in the first frequency band; or, the second device receives a ranging response-end-to-ranging initiation-end report frame in the second frequency band.

[0181] With reference to the 2nd implementation manner of the fourth aspect, in a possible implementation manner, the method further includes:

[0182] The second device transmits a ranging initiation-end-to-ranging response-end report frame in the first frequency band; or, the second device transmits a ranging initiation-end-to-ranging response-end report frame in the second frequency band.

[0183] With reference to the 2nd implementation manner of the fourth aspect, in a possible implementation manner, the method further includes:

[0184] The second device receives a ranging poll frame in the first frequency band, and transmits a reply frame of the ranging poll frame in the first frequency band; or, the second device receives a ranging poll frame in the second frequency band, and transmits a reply frame of the ranging poll frame in the second frequency band; or, the second device receives a ranging poll frame in the first frequency band, and transmits a reply frame of the ranging poll frame in the second frequency band; or, the second device receives a ranging poll frame in the second frequency band, and transmits a reply frame of the ranging poll frame in the first frequency band.

[0185] As a possible implementation manner 3, the second device receives a control frame in the first frequency band, and transmits a PPDU for ranging in the second frequency band includes:

[0186] The second device receives a ranging poll frame in the first frequency band and receives a first PPDU for ranging in the second frequency band; or the second device receives a ranging poll frame in the first frequency band and transmits a second PPDU for sensing in the second frequency band; or the second device receives a ranging poll frame in the first frequency band, receives a first PPDU for ranging in the second frequency band, and transmits a second PPDU for ranging in the second frequency band.

[0187] With reference to the third aspect, in a possible implementation of the third aspect, the method further includes: the second device receiving a ranging NDPA frame in the second frequency band.

[0188] With reference to the third aspect, in a possible implementation of the third aspect, the method further includes: the second device receiving a ranging probe trigger frame in the second frequency band.

[0189] With reference to the third aspect, in a possible implementation of the third aspect, the method further includes:

[0190] The second device receives a ranging response-end-to-ranging initiator-end report frame in the first frequency band; or the second device receives a ranging response-end-to-ranging initiator-end report frame in the second frequency band.

[0191] With reference to the third aspect, in a possible implementation of the third aspect, the method further includes:

[0192] The second device transmits a ranging initiator-end-to-ranging response-end report frame in the first frequency band; or the second device transmits a ranging initiator-end-to-ranging response-end report frame in the second frequency band.

[0193] As a possible implementation of the fourth aspect, the second device receives a control frame in the first frequency band and transmits a PPDU for ranging in the second frequency band includes:

[0194] The second device receives a ranging response-end-to-ranging initiator-end report frame in the first frequency band after receiving a first PPDU for ranging in the second frequency band; or the second device receives a ranging response-end-to-ranging initiator-end report frame in the first frequency band after transmitting a second PPDU for ranging in the second frequency band; or the second device receives a ranging response-end-to-ranging initiator-end report frame in the first frequency band after receiving a first PPDU for ranging in the second frequency band and transmitting a second PPDU for ranging in the second frequency band.

[0195] With reference to the fourth aspect, in a possible implementation of the fourth aspect, the method further includes:

[0196] The second device receives a ranging NDPA frame in the first frequency band; or, the second device receives a ranging NDPA frame in the second frequency band.

[0197] With reference to the fourth aspect as path 4, in a possible implementation, the method further includes:

[0198] The second device receives a ranging probe trigger frame in the first frequency band; or, the second device receives a ranging probe trigger frame in the second frequency band.

[0199] With reference to the fourth aspect as path 4, in a possible implementation, the method further includes:

[0200] The second device sends a ranging initiator-to-ranger report frame in the first frequency band; or, the second device sends a ranging initiator-to-ranger report frame in the second frequency band.

[0201] With reference to the fourth aspect as path 4, in a possible implementation, the method further includes:

[0202] The second device receives a ranging poll frame in the first frequency band; or, the second device receives a ranging poll frame in the second frequency band.

[0203] With reference to the fourth aspect as path 4, in a possible implementation, the method further includes:

[0204] The second device sends a reply frame of a ranging poll frame in the first frequency band; or, the second device sends a reply frame of a ranging poll frame in the second frequency band.

[0205] As a possible implementation 5, the second device receives a control frame in the first frequency band, and transmits a PPDU for ranging in the second frequency band, including:

[0206] The ranging responder receives a ranging NDPA frame in the first frequency band, and receives a first PPDU for ranging in the second frequency band; or, the ranging responder receives a ranging NDPA frame in the first frequency band, and sends a second PPDU for ranging in the second frequency band; or, the ranging responder receives a ranging NDPA frame in the first frequency band, receives a first PPDU for ranging in the second frequency band, and sends a second PPDU for ranging in the second frequency band.

[0207] With reference to the fourth aspect as path 5, in a possible implementation, the method further includes:

[0208] The sensing response end sends a ranging response end-to-ranging initiation end report frame in the first frequency band; or the sensing response end sends a ranging response end-to-ranging initiation end report frame in the second frequency band.

[0209] With reference to the 5th implementation manner of the fourth aspect, in a possible implementation manner, the method further includes:

[0210] The sensing response end receives a ranging initiation end-to-ranging response end report frame in the first frequency band; or the sensing response end receives a ranging initiation end-to-ranging response end report frame in the second frequency band.

[0211] In a possible implementation manner, the frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

[0212] The fifth aspect, the embodiments of the present application provide a sensing initiation end for executing the method in the first aspect or any possible implementation manner. The sensing initiation end includes a module for executing the method in the first aspect or any possible implementation manner.

[0213] The sixth aspect, the embodiments of the present application provide a sensing response end for executing the method in the second aspect or any possible implementation manner. The sensing response end includes a module for executing the method in the second aspect or any possible implementation manner.

[0214] The seventh aspect, the embodiments of the present application provide a ranging response end for executing the method in the third aspect or any possible implementation manner. The sensing initiation end includes a module for executing the method in the third aspect or any possible implementation manner.

[0215] The eighth aspect, the embodiments of the present application provide a ranging initiation end for executing the method in the fourth aspect or any possible implementation manner. The sensing response end includes a module for executing the method in the fourth aspect or any possible implementation manner.

[0216] The ninth aspect, the embodiments of the present application provide a sensing initiation end, which includes a processor for executing the method shown in the first aspect or any possible implementation manner. The processor is used to execute a program stored in a memory, and when the program is executed, the method shown in the first aspect or any possible implementation manner is executed.

[0217] In a possible implementation manner, the memory is located outside the sensing initiation end.

[0218] In a possible implementation manner, the memory is located inside the sensing initiation end.

[0219] In the embodiments of the present application, the processor and the memory can also be integrated in one device, that is, the processor and the memory can also be integrated together.

[0220] In a possible implementation, the perception initiator further includes a transceiver configured to receive or send information.

[0221] In the tenth aspect, the embodiments of the present application provide a perception responder, which includes a processor configured to execute the method shown in the second aspect or any possible implementation. The processor is configured to execute a program stored in the memory, and when the program is executed, the method shown in the second aspect or any possible implementation is executed.

[0222] In a possible implementation, the memory is located outside the perception responder.

[0223] In a possible implementation, the memory is located inside the perception responder.

[0224] In the embodiments of the present application, the processor and the memory can also be integrated in one device, that is, the processor and the memory can also be integrated together.

[0225] In a possible implementation, the perception responder further includes a transceiver configured to receive or send information.

[0226] In the eleventh aspect, the embodiments of the present application provide a first device, which includes a processor configured to execute the method shown in the third aspect or any possible implementation. The processor is configured to execute a program stored in the memory, and when the program is executed, the method shown in the third aspect or any possible implementation is executed.

[0227] In a possible implementation, the memory is located outside the first device.

[0228] In a possible implementation, the memory is located inside the first device.

[0229] In the embodiments of the present application, the processor and the memory can also be integrated in one device, that is, the processor and the memory can also be integrated together.

[0230] In a possible implementation, the first device further includes a transceiver configured to receive or send information.

[0231] In a twelfth aspect, an embodiment of the present application provides a second apparatus, which comprises a processor configured to implement a method recited in the fourth aspect or any possible implementation of the fourth aspect. The processor is configured to execute a program stored in the memory, and when the program is executed, the method recited in the fourth aspect or any possible implementation of the fourth aspect is implemented.

[0232] In a possible implementation, the memory is located outside the second apparatus.

[0233] In a possible implementation, the memory is located inside the second apparatus.

[0234] In an embodiment of the present application, the processor and the memory can also be integrated into one device, that is, the processor and the memory can also be integrated together.

[0235] In a possible implementation, the second apparatus further comprises a transceiver configured to receive information or send information.

[0236] In a thirteenth aspect, an embodiment of the present application provides a sensing initiator, which comprises a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is configured to input and / or output information, and the logic circuit is configured to implement a method recited in the first aspect or any possible implementation of the first aspect.

[0237] In a fourteenth aspect, an embodiment of the present application provides a sensing responder, which comprises a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is configured to input and / or output information, and the logic circuit is configured to implement a method recited in the second aspect or any possible implementation of the second aspect.

[0238] In a fifteenth aspect, an embodiment of the present application provides a first apparatus, which comprises a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is configured to input and / or output information, and the logic circuit is configured to implement a method recited in the third aspect or any possible implementation of the third aspect.

[0239] In a sixteenth aspect, an embodiment of the present application provides a second apparatus, which comprises a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is configured to input and / or output information, and the logic circuit is configured to implement a method recited in the fourth aspect or any possible implementation of the fourth aspect.

[0240] In a seventeenth aspect, an embodiment of the present application provides a computer readable storage medium, which is configured to store a computer program, and when the computer program is run on a computer, a method recited in any one of the first aspect to the fourth aspect or any possible implementation of the first aspect to the fourth aspect is implemented.

[0241] In an eighteenth aspect, an embodiment of the present application provides a computer program product, which, when executed on a computer, causes the method shown in any one of the first aspect to the fourth aspect or any possible implementation manner thereof to be performed.

[0242] In a nineteenth aspect, an embodiment of the present application provides a computer program, which, when executed on a computer, causes the method shown in any one of the first aspect to the fourth aspect or any possible implementation manner thereof to be performed.

[0243] In a twentieth aspect, an embodiment of the present application provides a communication system, which comprises a sensing initiator and a sensing responder, the sensing initiator is configured to perform the method shown in the first aspect or any possible implementation manner of the first aspect, and the sensing responder is configured to perform the method shown in the second aspect or any possible implementation manner of the second aspect.

[0244] In a twenty-first aspect, an embodiment of the present application provides a communication system, which comprises a second device and a first device, the first device is configured to perform the method shown in the third aspect or any possible implementation manner of the third aspect, and the second device is configured to perform the method shown in the fourth aspect or any possible implementation manner of the fourth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0245] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application;

[0246] FIGS. 2a to 2d are schematic diagrams of formats of sensing PPDU according to embodiments of the present application;

[0247] FIG. 3 is a schematic diagram of stages of a sensing procedure according to an embodiment of the present application;

[0248] FIG. 4 is a schematic diagram of a procedure of TB sensing measurement interaction according to an embodiment of the present application;

[0249] FIG. 5 is a schematic diagram of a procedure of TB sensing measurement interaction according to an embodiment of the present application;

[0250] FIG. 6 is a schematic diagram of another procedure of TB sensing measurement interaction according to an embodiment of the present application;

[0251] FIG. 7 is a schematic diagram of still another procedure of TB sensing measurement interaction according to an embodiment of the present application;

[0252] FIG. 8 is a schematic diagram of still another procedure of TB sensing measurement interaction according to an embodiment of the present application;

[0253] FIG. 9 is a schematic diagram of still another procedure of TB sensing measurement interaction according to an embodiment of the present application;

[0254] FIG. 10 is a flow diagram of a non-TB-aware measurement interaction according to an embodiment of the present application;

[0255] FIG. 11 is a flow diagram of a non-TB-aware measurement interaction according to another embodiment of the present application;

[0256] FIG. 12 is a flow diagram of a non-TB-aware measurement interaction according to yet another embodiment of the present application;

[0257] FIG. 13 is a flow diagram of a non-TB-aware measurement interaction according to still another embodiment of the present application;

[0258] FIGS. 14a-14c are flow diagrams of a TB-aware measurement interaction according to an embodiment of the present application;

[0259] FIG. 15 is a diagram of an SBP procedure according to an embodiment of the present application;

[0260] FIGS. 16a and 16b are diagrams of an SBP procedure according to an embodiment of the present application in conjunction with the TB-aware measurement interaction of FIG. 5;

[0261] FIGS. 17a and 17b are diagrams of an SBP procedure according to an embodiment of the present application in conjunction with the TB-aware measurement interaction of FIG. 6;

[0262] FIGS. 18a and 18b are diagrams of an SBP procedure according to an embodiment of the present application in conjunction with the TB-aware measurement interaction of FIG. 7;

[0263] FIGS. 19a and 19b are diagrams of an SBP procedure according to an embodiment of the present application in conjunction with the TB-aware measurement interaction of FIG. 8;

[0264] FIGS. 20a and 20b are diagrams of an SBP procedure according to an embodiment of the present application in conjunction with the TB-aware measurement interaction of FIG. 9;

[0265] FIG. 21 is a flow diagram of a TB ranging measurement interaction according to an embodiment of the present application;

[0266] FIG. 22 is a flow diagram of a TB ranging measurement interaction according to another embodiment of the present application;

[0267] FIG. 23 is a flow diagram of a TB ranging measurement interaction according to yet another embodiment of the present application;

[0268] FIG. 24 is a flow diagram of a TB ranging measurement interaction according to still another embodiment of the present application;

[0269] FIG. 25 is a flow diagram of a TB ranging measurement interaction according to yet another embodiment of the present application;

[0270] FIG. 26 is a flow diagram of a non-TB ranging measurement interaction according to an embodiment of the present application;

[0271] FIG. 27 is a flow diagram of a non-TB ranging measurement interaction according to an embodiment of the present application;

[0272] FIG. 28 is a flow diagram of a non-TB ranging measurement interaction according to an embodiment of the present application;

[0273] FIG. 29 is a flow diagram of a non-TB ranging measurement interaction according to an embodiment of the present application;

[0274] FIG. 30 is a block diagram of a communication apparatus according to an embodiment of the present application;

[0275] FIG. 31 is a block diagram of a communication apparatus according to an embodiment of the present application;

[0276] FIG. 32 is a block diagram of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0277] In order to facilitate the understanding of the technical solution of the present application, the present application will be further described below with reference to the accompanying drawings.

[0278] The terms "first" and "second" and the like in the description, claims, and drawings of the present application merely mean different objects and do not necessarily imply a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus, or the like, including a series of steps or units is not limited to the listed steps or units, but can optionally further include steps or units not listed or other steps or units inherent to such processes, methods, products, or apparatuses.

[0279] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor does it necessarily refer to a separate or alternative embodiment. It will be explicitly and implicitly appreciated by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0280] In the present application, "at least one" means one or more, "multiple" means two or more, "at least two" means two or three and three or more, and "and / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. "Or" means that there can be two relationships, such as only A exists, only B exists; when A and B are not mutually exclusive, it can also mean that there are three relationships, such as only A exists, only B exists, and A and B exist at the same time. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of these items. For example, at least one of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0281] In the present application, "indication" can include direct indication, indirect indication, display indication, and implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0282] In the present application, the information indicated by the indication information is referred to as the to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the pre-agreed (for example, the protocol stipulates) arrangement order of each information, thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different.

[0283] In the present application, "transmission" includes sending or receiving.

[0284] In this application, "sending" and "receiving" indicate the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information is XX, which can include direct sending through the air interface, and also include indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as the source of the information is YY, which can include direct receiving from YY through the air interface, and also include indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, trace or interface.

[0285] The following introduces the communication system involved in this application.

[0286] The technical solutions provided in the embodiments of the present application can be applied to wireless local area network (WLAN) systems, such as Wi-Fi or ambient power (AMP). The methods provided in the embodiments of the present application can be applied to IEEE 802.11 series protocols, such as 802.11a / b / g, 802.11bf, 802.11az, 802.11bk, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11bn or next-generation protocols, and 802.11ad, 802.11ay or next-generation protocols, which are not listed here. The technical solutions provided in the embodiments of the present application can also be applied to wireless personal area networks (WPANs) based on ultra-wideband (UWB) technology. The technical solutions provided in the embodiments of the present application can also be applied to millimeter wave (MMW) technology, including integrated millimeter wave (IMMW). For example, the method provided in the embodiments of the present application can be applicable to the IEEE802.15 series protocols, such as the 802.15.4a protocol, the 802.15.4z protocol or the 802.15.4ab protocol, or a future generation of UWB WPAN protocols, etc., which are not listed one by one. The technical solutions provided in the embodiments of the present application can also be applied to the following communication systems, for example, the Internet of Things (IoT) system, the Vehicle to X (V2X), the Narrow Band Internet of Things (NB-IoT) system, the Long Term Evolution (LTE) system, the Fifth Generation (5G) communication system, and new communication systems that will emerge in the future development of communications.

[0287] WLAN systems can provide high-speed and low-latency transmission. As WLAN application scenarios continue to evolve, WLAN systems will be applied to more scenarios or industries, such as the Internet of Things industry, the Internet of Vehicles industry, the banking industry, corporate offices, sports stadiums and exhibition halls, concert halls, hotel rooms, dormitories, wards, classrooms, supermarkets, squares, streets, production workshops and warehouses, etc. Of course, devices that support WLAN communication or perception (such as access points or stations) can be sensor nodes in smart cities (such as smart water meters, smart electricity meters, and smart air detection nodes), smart devices in smart homes (such as smart cameras, projectors, displays, TVs, speakers, refrigerators, washing machines, etc.), nodes in the Internet of Things, entertainment terminals (such as wearable devices such as augmented reality (AR) and virtual reality (VR)), smart devices in smart offices (such as printers, projectors, loudspeakers, speakers, etc.), Internet of Vehicles devices, infrastructure in daily life scenarios (such as vending machines, self-service navigation counters in supermarkets, self-service checkout equipment, self-service ordering machines, etc.), and equipment in large sports and music venues.

[0288] Although the embodiments of the present application primarily use WLAN as an example, particularly networks based on the IEEE 802.11 standard, the various aspects of the embodiments of the present application can be extended to other networks based on various standards or protocols, such as Bluetooth, high-performance wireless LAN (HIPERLAN) (a wireless standard similar to the IEEE 802.11 standard, primarily used in Europe), and wide area networks (WANs), or other networks now known or developed in the future.

[0289] In one possible implementation, the method provided in the embodiment of the present application may be implemented by a communication device in a communication system. For example, the communication device may be an access point (AP) or a station (STA).

[0290] An access point is a device with wireless communication capabilities that supports communication or sensing using WLAN protocols. It has the ability to communicate or sense with other devices in a WLAN network (such as non-AP STAs or other access points). Of course, it can also have the ability to communicate or sense with other devices. Alternatively, an access point acts as a bridge between a wired network and a wireless network, primarily connecting wireless network clients and then connecting the wireless network to the Ethernet. In a WLAN system, an access point can be referred to as an access point station (AP STA). This device with wireless communication capabilities can be a complete device or a chip, processing system, or functional module installed in the complete device. Devices equipped with these chips, processing systems, or functional modules can implement the methods and functions of the embodiments of the present application under the control of these chips, processing systems, or functional modules. The AP in the embodiments of the present application is a device that provides services for non-AP STAs and can support the 802.11 series of protocols or subsequent protocols. For example, an access point can be an access point for a terminal (such as a mobile phone) to enter a wired (or wireless) network. It is primarily deployed in homes, buildings, and campuses, with a typical coverage radius of tens to hundreds of meters. Of course, it can also be deployed outdoors. For another example, an AP can be a communication entity such as a communication server, router, switch, or bridge; an AP can include various forms of macro base stations, micro base stations, and relay stations. Of course, an AP can also be a chip, processing system, or module in any of the aforementioned devices, thereby implementing the methods and functions of the embodiments of the present application. Of course, an AP can also include an AP belonging to a multi-link device (MLD) or a co-located AP.

[0291] A STA is a device with wireless communication capabilities that supports communication or perception using the WLAN protocol and has the ability to communicate or perceive other non-AP STAs or access points in the WLAN network. In a WLAN system, a station can be referred to as a non-access point station (non-AP STA). For example, a STA is any user communication device that allows a user to communicate or perceive with an AP and then communicate with a WLAN. The device with wireless communication capabilities can be a complete device, or a chip, processing system, or functional module installed in the complete device. The device installed with these chips, processing systems, or functional modules can implement the methods and functions of the embodiments of the present application under the control of the chip, processing system, or functional module. For example, a STA can be a wireless communication chip, a wireless sensor, or a wireless communication terminal, and can also be referred to as a user. For another example, a STA can be a mobile phone that supports Wi-Fi communication capabilities, a tablet that supports Wi-Fi communication capabilities, a set-top box that supports Wi-Fi communication capabilities, a smart TV that supports Wi-Fi communication capabilities, a smart wearable device that supports Wi-Fi communication capabilities, an in-vehicle communication device that supports Wi-Fi communication capabilities, and a computer that supports Wi-Fi communication capabilities. Of course, STA can also be a chip, processing system, or module in the various forms of devices described above, thereby implementing the methods and functions of the embodiments of the present application. Of course, STA can also include a non-AP STA or a co-located STA belonging to a multi-link device (MLD).

[0292] Exemplarily, the communication system to which the method provided in the embodiments of the present application can be applied may include access points and stations. For example, the embodiments of the present application may be applicable to scenarios of communication or perception between APs and STAs, between APs and APs, or between STAs and STAs in a WLAN, and the embodiments of the present application are not limited thereto. Optionally, the AP may communicate or perceive with a single STA, or the AP may communicate or perceive with multiple STAs simultaneously. Specifically, communication or perception between the AP and multiple STAs can be further divided into downlink transmission in which the AP sends signals to multiple STAs simultaneously, and uplink transmission in which multiple STAs send signals to the AP. WLAN communication protocols may be supported between the AP and STAs, between APs and APs, and between STAs. The communication protocols may include IEEE 802.11 series protocols, such as 802.11n / 802.11ac / 802.11ax / 802.11be / 802.11bn protocols, and of course, also applicable to protocols after 802.11bn.

[0293] Figure 1 is a schematic diagram of the architecture of the communication system provided in an embodiment of the present application. The communication system may include one or more APs and one or more STAs. Figure 1 shows an access point such as AP1, and three stations such as STA1, STA2 and STA3. Exemplarily, the method provided in an embodiment of the present application may be applicable to data communication between an AP and one or more STAs (communication between AP1 and STA1 as shown in Figure 1, or communication between AP1 and STA1, STA2), or applicable to communication between APs, or applicable to communication between STAs (communication between STA2 and STA3 as shown in Figure 1). The method provided in an embodiment of the present application may be applicable to, but not limited to: uplink / downlink transmission of a single user, uplink / downlink transmission of multiple users, vehicle-to-everything (V2X, X can represent anything), and device-to-device (D2D). For example, the V2X may include: vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, etc.

[0294] It is understood that the example of a mobile phone as a STA and a router as an AP in Figure 1 does not limit the types of APs and STAs in the embodiments of this application. Furthermore, Figure 1 only illustrates one AP and three STAs, but the number of APs or STAs can be greater or less, and this is not limited in the embodiments of this application.

[0295] The following describes the method involved in this application.

[0296] The low-frequency perception process is similar to the high-frequency perception process. Generally speaking, the bandwidth of high and low frequencies differs significantly, and the high-frequency perception process is independent of the low-frequency perception process, meaning each has its own independent and complete perception process. High frequencies have a larger bandwidth, such as a channel bandwidth of 2.16 GHz (for example). This larger bandwidth provides better perception performance, such as improved range resolution and higher accuracy. In high-frequency standards, the transmission bandwidth of a PPDU (also known as a signal or OFDM symbol) can be greater than or equal to 320 MHz. However, due to the significant attenuation at high frequencies, signals are generally transmitted or received directionally. This directional transmission or reception is susceptible to obstruction and beam misalignment, which can affect the signaling interaction for perception between high frequencies. If this signaling interaction is affected, the perception measurement interaction cannot proceed and the measurement cannot be completed. Unlike high frequencies, low frequencies have relatively smaller bandwidths (for example, the maximum PPDU bandwidth in the 802.11be protocol is 320 MHz), resulting in relatively limited perception performance. However, low frequencies are generally transmitted omnidirectionally, making them less likely to be blocked. Therefore, the various frames involved in the perception measurement interaction can be transmitted efficiently. The descriptions of perception here also apply to ranging, so we will not elaborate on this here.

[0297] Considering that future devices may have both high-frequency and low-frequency communication or perception capabilities, the present application provides a perception communication method, a ranging communication method, an apparatus, and a system.

[0298] In this application, low frequency can assist high frequency to complete perception measurement or ranging, or high frequency and low frequency can collaborate to complete perception measurement or ranging. The collaboration between high frequency and low frequency can be closer, so that the respective advantages of high and low frequencies can be effectively utilized to better support the completion of perception measurement or ranging interaction, and improve perception performance or ranging performance. For example, this application can improve the robustness of the perception process or ranging process, and can make full use of the large bandwidth advantage of high frequency to improve the accuracy of perception or ranging. In addition, this application can also support more flexible high and low frequency perception or ranging applications.

[0299] The names involved in this application are explained below.

[0300] 1. High frequency and low frequency

[0301] In this application, high frequency and low frequency are relative. For example, the frequency of the low frequency may be lower than the first threshold, such as lower than 7GHz (sub-7GHz), or the frequency of the low frequency may include 2.4GHz to 7.25GHz (also referred to as sub-7GHz). The frequency of the high frequency may be higher than the second threshold, such as higher than 42GHz, or the frequency of the high frequency may include 42GHz to 71GHz. The above-mentioned second threshold may be greater than the first threshold. This application does not limit the specific values ​​of the first threshold and the second threshold. Of course, with the advancement of the standard, other frequencies of high frequency and low frequency may appear in the future, and this application does not limit this.

[0302] In this application, the second frequency band corresponds to high frequency (HF), or the frequency of the high frequency shown below is the same as the frequency of the second frequency band, that is, the second frequency band can be interchangeable with the high frequency. The first frequency band can correspond to low frequency (LF), or the frequency of the low frequency shown below is the same as the frequency of the first frequency band, that is, the first frequency band can be interchangeable with the low frequency.

[0303] 2. Perception PPDU and Ranging PPDU

[0304] For the perception communication method, both the first PPDU and the second PPDU are PPDUs for perception. The first PPDU may be a PPDU for perception during the NDPA detection phase, and the second PPDU may be a PPDU for perception during the TF detection phase. For example, the first PPDU may include an SI2SR NDP, and the second PPDU may include an SR2SI NDP or an SR2SR NDP.

[0305] For the ranging communication method, both the first PPDU and the second PPDU are PPDUs used for ranging. The first PPDU may be a PPDU used for ranging during the NDPA detection phase, and the second PPDU may be a PPDU used for ranging during the TF detection phase. For example, the first PPDU may include an R2I NDP, etc., and the second PPDU may include an I2R NDP, etc.

[0306] The first PPDU and the second PPDU listed above are only examples. For example, the first PPDU and the second PPDU may also include a data field, and the length of the data field may be less than the length threshold. This application does not limit the specific value of the length threshold.

[0307] In the present application, the first PPDU and the second PPDU are distinguished based on different stages or different transmission objects, and the specific format or name of the two PPDUs is not limited in the present application. In a specific implementation, the first PPDU and the second PPDU can also be distinguished, but are collectively referred to as a sensing PPDU or a ranging PPDU, etc. The above distinction is not limited in the present application.

[0308] FIG. 2a-2d are format diagrams of the sensing PPDU according to embodiments of the present disclosure. FIG. 2a-2d exemplarily show format diagrams of the sensing PPDU. The sensing PPDUs shown in FIG. 2a-2d can also be applied to the ranging communication method, i.e., the PPDUs shown in FIG. 2a-2b can also be ranging PPDUs. The sensing PPDU shown in FIG. 2a is exemplarily shown in the high efficiency (HE) ranging NDP, the sensing PPDU shown in FIG. 2b is exemplarily shown in the HE based-trigger (TB) ranging NDP, the sensing PPDU shown in FIG. 2c is exemplarily shown in the extremely high throughtput (EHT) ranging NDP, and the sensing PPDU shown in FIG. 2d is exemplarily shown in the EHT TB ranging NDP. The 8us per EHT-LTF shown in FIG. 2c can include 8us per EHT-LTF symbol using 2x EHT-LTF. The explanations of the fields shown in FIG. 2a-2d can refer to the related standards or protocols, which will not be described in detail here: legacy short training field (L-STF), legacy long training field (L-LTF), legacy signal (L-SIG) field, repeated L-SIG (RL-SIG) field, high efficiency signal field A (HE-SIG), high efficiency short training field (HE-LTF), universal SIG (U-SIG) field, extremely high throughtput short training field (EHT-STF), EHT-SIG field, or packet extension (PE). The explanations about the sensing PPDU here also apply to the ranging PPDU.

[0309] The sensing PPDUs (or ranging PPDUs) shown in FIGs. 2a-2d are merely examples, and other formats of sensing PPDUs (or ranging PPDUs) can be introduced in the future as the standard evolves, which are not limited by embodiments of the present application. The sensing PPDUs (or ranging PPDUs) transmitted on the high frequency can or can not have the same format as the sensing PPDUs (or ranging PPDUs) transmitted on the low frequency, which are not limited by embodiments of the present application. The lengths of the fields in the NDPs shown in FIGs. 2a-2d are merely examples, and should not be construed as limiting embodiments of the present application.

[0310] The transmission manners in the sensing communication method or the ranging communication method are described as follows.

[0311] In at least one stage of the sensing measurement interaction procedure (or the ranging measurement interaction procedure): the control frames are transmitted on the low frequency, and the sensing PPDUs are transmitted on the high frequency.

[0312] Alternatively, in at least one stage of the sensing measurement interaction procedure (or the ranging measurement interaction procedure): the control frames and the sensing PPDUs are both transmitted on the high frequency.

[0313] Alternatively, in at least one stage of the sensing measurement interaction procedure (or the ranging measurement interaction procedure): some control frames are transmitted on the low frequency, and other control frames are transmitted on the high frequency. For example, the sensing PPDUs can be transmitted on the high frequency.

[0314] The descriptions of the control frames and the sensing PPDUs herein also apply to the SBP procedure. For example, in at least one stage of the SBP procedure: the control frames are transmitted on the low frequency, and the sensing PPDUs are transmitted on the high frequency; or the control frames and the sensing PPDUs are both transmitted on the high frequency, and the like, which are not listed one by one herein.

[0315] Generally, at least one of the format or the content of the control frames can be different in different stages. The descriptions of the control frames and the sensing PPDUs herein also apply to the ranging communication method, which are not listed one by one herein.

[0316] The "transmission" described herein can include sending or receiving. For example, the transmission of the control frames on the low frequency can include that the sending end of the control frames sends the control frames on the low frequency, or the receiving end of the control frames receives the control frames on the low frequency. For another example, the transmission of the sensing PPDUs on the high frequency can include that the sending end of the sensing PPDUs sends the sensing PPDUs on the high frequency, or the receiving end of the sensing PPDUs receives the sensing PPDUs on the high frequency. The descriptions of the transmission are not listed one by one herein.

[0317] The sending end and the receiving end of the control frame, the sending end and the receiving end of the first PPDU, and the sending end and the receiving end of the second PPDU will be described below. The sending end and the receiving end of the control frame can be determined in combination with the sensing communication method or the ranging communication method shown below. For example, for the sensing communication method, the sending end of the control frame can be a sensing initiator, etc. For example, for the ranging communication method, the sending end of the control frame can be a ranging responder or a ranging initiator. Similarly, the sending end and the receiving end of the first PPDU can also be determined in combination with the sensing communication method or the ranging communication method shown below. For example, for the sensing communication method, the sending end of the first PPDU can also be referred to as a sensing sender. As shown in FIGS. 5-9 below, the sending end of the first PPDU (i.e., the sensing sender) can also be a sensing initiator. The receiving end of the first PPDU can also be referred to as a sensing receiver. As shown in FIGS. 5-9 below, the receiving end of the first PPDU (i.e., the sensing receiver) can also be a sensing responder. For example, for the sensing communication method, the sending end of the second PPDU can also be referred to as a sensing sender. As shown in FIGS. 5-9 below, the sending end of the second PPDU (i.e., the sensing sender) can also be a sensing responder. The receiving end of the second PPDU can also be referred to as a sensing receiver. As shown in FIGS. 5-9 below, the receiving end of the second PPDU (i.e., the sensing receiver) can also be a sensing initiator. The sending end and the receiving end are not listed one by one here.

[0318] In this application, when the control frame is transmitted by low frequency, the following methods can be used:

[0319] Method 1: The receiving address of the control frame is a broadcast address. The sending end of the control frame can send the control frame omnidirectionally. For example, the number of receiving ends of the control frame is N, and N is a positive integer. When N is greater than or equal to 2, the sending end of the control frame can send M control frames to N receiving ends at the same time. The control frame can include information (such as measurement resources, etc.) allocated by the sending end of the control frame to each of the N receiving ends. For example, M = 1.

[0320] The sending end and the receiving end of the control frame can be different according to different sensing communication methods or ranging communication methods, or different according to different measurement interaction processes. The specific product form of the sending end and the receiving end of the control frame is not described in detail here.

[0321] Way 2, the receiving address of the control frame is the address of the receiving end. The sending end of the control frame can send N control frames omnidirectionally, and each control frame corresponds to a receiving end. N is a positive integer. When N is greater than or equal to 2, the sending end of the control frame can send M control frames at different time instants. The address of the control frame can be the address of the corresponding receiving end. The aforementioned one time instant can correspond to one control frame. Exemplarily, M=N. The aforementioned different time instants can include different starting time instants, different time durations, or different ending time instants.

[0322] In the present application, since the signal transmitted at low frequency is less affected by shielding, the transmission of the control frame at low frequency can reduce the influence of the control frame by environmental factors and improve the reliability of the transmission of the control frame.

[0323] In the embodiments of the present application, the first PPDU and the second PPDU can be transmitted at low frequency in the following ways:

[0324] Way 3, for the first PPDU, the sending end (including the sensing sending end or the ranging sending end) of the first PPDU can send the first PPDU omnidirectionally. The receiving end of the first PPDU can be indicated by the control frame of the first PPDU, that is, the control frame of the first PPDU can indicate which receiving end needs to receive the first PPDU.

[0325] Way 4, for the second PPDU, the sending end (including the sensing sending end or the ranging sending end) of the second PPDU can send the second PPDU omnidirectionally. The sending end of the second PPDU can be indicated by the control frame of the second PPDU, for example, the device receiving the control frame of the second PPDU can send the second PPDU.

[0326] In the present application, the control frame can be transmitted at high frequency in the following ways:

[0327] Way 5, the receiving address of the control frame is a broadcast address. The sending end of the control frame can send M control frames, and each control frame includes information allocated by the sensing initiator to each of the N sensing response ends. Exemplarily, M=N. Alternatively, M>N, or M<N. The sending end of the control frame can send the above plurality of control frames omnidirectionally, or can also send the above plurality of control frames directionally. Directional sending of multiple control frames can also be understood as that the sending direction of each control frame is different.

[0328] Way 6, the receiving address of the control frame is the address of the receiving end. The sending end of the control frame can send M control frames directionally. The sending direction of each control frame can be different. The sending end of the control frame can send the control frame in different directions to ensure that the N receiving ends can all receive the control frame.

[0329] As an example, the control frame can include information allocated by the transmitting end of the control frame for each of the N receiving ends. As another example, the control frame can include information allocated by the transmitting end of the control frame for one receiving end. Thus, the control frames in different directions can correspond to different receiving ends.

[0330] The transmission manners of the control frame described above can also be applicable to the reply frame of the control frame, and the transmission manner of the reply frame will not be described here.

[0331] In this application, the first PPDU or the second PPDU can have the following manners when transmitted at high frequencies.

[0332] Manner 7: For the first PPDU, the transmitting end (including the sensing transmitting end or the ranging transmitting end) can transmit the first PPDU in different directions.

[0333] Manner 8: For the second PPDU, the N transmitting ends can transmit the second PPDU in the form of SU. The form of SU means that the N transmitting ends can respectively transmit the second PPDU at different time points (or different time periods) in a time-division manner. Alternatively, for the second PPDU, the N transmitting ends can transmit the second PPDU in the form of MU. The form of MU means that the N transmitting ends can simultaneously transmit the second PPDU, such as the transmission manner of orthogonal frequency division multiple access (OFDMA) and / or the transmission manner of multi-user multiple-input multiple-output (MU-MIMO). Although the N transmitting ends simultaneously transmit the second PPDU, the N transmitting ends can respectively transmit the second PPDU on different transmission resources, so as to reduce or avoid interference as much as possible. In this application, the N transmitting ends simultaneously transmitting the second PPDU can be understood as the N transmitting ends respectively transmitting the second PPDU within the same time period. The specific duration of this period is not limited in this application.

[0334] For the convenience of subsequent reference, different numbers are used in this application to distinguish different manners or examples, etc., but this should not be understood as a limitation on the embodiments of the application. The transmission manners shown in the above manners 1-8 are only examples, and in specific implementations, the control frame or the sensing PPDU or the ranging PPDU can also have other transmission manners, which are not limited in this application.

[0335] For the sensing communication method, the aforementioned control frame can include, but is not limited to, a sensing poll trigger frame (or referred to as a sensing poll frame), a sensing NDPA frame, a sensing SR2SI sounding trigger frame, a sensing report trigger frame, a clear to send (CTS) to self frame, or a report frame. The sensing NDPA frame corresponds to a first PPDU, and the sensing SR2SI sounding trigger frame corresponds to a second PPDU. The control frame, the reply frame, or the sensing PPDU shown herein is exemplified by taking the TB sensing measurement interaction shown in FIG. 4 or the non-TB sensing measurement interaction shown in FIG. 10 or the sensing measurement interaction shown in FIGS. 14a-20b as an example. With the development of standards, other types of control frames for sensing and the like can also appear in the future, which are not limited in the present application.

[0336] For the ranging communication method, the aforementioned control frame can include, but is not limited to, a ranging poll trigger frame (or referred to as a ranging poll frame), a ranging NDPA frame, a sounding ranging trigger frame, and the like. As for the control frame or the ranging PPDU involved in the ranging communication method, it is not listed one by one herein.

[0337] The sensing communication method shown in the present application is described in detail below.

[0338] Some devices involved in the sensing communication method of the embodiments of the present application are described below.

[0339] Sensing initiator: a device that initiates a sensing behavior; or a device that initiates a sensing measurement session; or a device that sends a sensing measurement request frame. The sensing initiator can send the sensing measurement request frame at a low frequency, or send the sensing measurement request frame at a high frequency. The sensing initiator can be a sensing transmitter or a sensing receiver.

[0340] Sensing responder: a device that participates in sensing in response to the sensing behavior initiated by the sensing initiator. For example, the sensing responder can receive a sensing measurement request frame and reply with a sensing measurement response frame. The sensing responder can reply with the sensing measurement response frame at a low frequency, or reply with the sensing measurement response frame at a high frequency. As an example, for a trigger-based (TB) sensing measurement interaction, the sensing initiator can be an AP, and the sensing responder can be a STA. As another example, for a non-TB sensing measurement interaction, the sensing initiator can be a STA, and the sensing responder can be an AP. The sensing responder can be a sensing transmitter or a sensing receiver.

[0341] Sensing transmitter: an apparatus that transmits a sensing PPDU. The sensing transmitter can transmit a sensing PPDU at low frequency, or at high frequency.

[0342] Sensing receiver: an apparatus that receives a sensing PPDU. The sensing receiver can receive a sensing PPDU at low frequency, or at high frequency.

[0343] FIG. 3 is a diagram of stages of a sensing procedure according to an embodiment of the present application. As shown in FIG. 3, the stages of the sensing procedure can include a sensing capabilities exchange stage, a sensing measurement session setup stage, a sensing measurement exchange stage, and a sensing measurement session termination stage.

[0344] The capabilities exchange between devices can be performed between different devices, as shown in the sensing capabilities exchange stage of FIG. 3. Through the exchange of basic capabilities, the devices can learn each other's sensing capabilities. For example, the sensing initiator can send a sensing capabilities element to the sensing responder, which can carry the sensing capabilities of the sensing initiator. The sensing responder can send a sensing capabilities element to the sensing initiator, which can carry the sensing capabilities of the sensing responder. Generally, the devices that exchange capabilities are not distinguished as sensing initiators or sensing responders in the sensing capabilities exchange stage. The sensing initiator or sensing responder can be distinguished after the capabilities exchange is completed, i.e., the apparatus that sends the sensing measurement request frame can be the sensing initiator.

[0345] After the capability exchange, the sensing initiator can initiate the establishment of a sensing measurement session by sending a sensing measurement request frame when it needs to initiate a sensing measurement session, and the sensing responder receives the sensing measurement request and replies with a sensing measurement response frame. The sensing initiator can assign different roles and parameters to different sensing responders for different sensing tasks in the sensing measurement session establishment phase, and complete the establishment of the sensing measurement session. The sensing measurement session establishment phase mainly negotiates the relevant parameters in sensing, such as the receiving / transmitting role of the device, the sensing bandwidth, whether to feed back the channel state information (CSI) matrix, whether to feed back the sensing measurement report frame, and the like.

[0346] After the establishment of the sensing measurement session, the sensing initiator can initiate one or more sensing measurement instances. That is, the sensing measurement session can include one or more sensing measurement instances. The sensing measurement instance can be divided into a trigger based (TB) sensing measurement instance and a non-trigger based (non-TB) sensing measurement instance. The TB sensing measurement instance is generally initiated by an AP (e.g., the AP as the sensing initiator), and the non-TB sensing measurement instance is generally initiated by a STA (e.g., the STA as the sensing initiator).

[0347] After a period of time, if the sensing initiator or the sensing responder does not need the sensing measurement session, the sensing initiator or the sensing responder can close (or terminate) the sensing measurement session by sending a sensing measurement session termination frame, as shown in the sensing measurement session termination phase of FIG. 3.

[0348] The sensing process shown in FIG. 3 can correspond to different sensing tasks. For example, the sensing initiator can initiate the sensing process for a fall detection task, and in the sensing measurement instance phase, the sensing initiator (or the sensing responder) can detect the information of the target by sending a plurality of sensing PPDUs. For another example, the sensing initiator can initiate the sensing process for a breathing detection task, and in the sensing measurement instance phase, the sensing initiator (or the sensing responder) can also detect the information of the target by sending a plurality of sensing PPDUs. The information of the target listed here can include the motion information of the target, and the like. The target detected by the sensing process can be in a motion state or a stationary state, which is not limited by the embodiments of the present application.

[0349] The sensing procedure shown in FIG. 3 can also be applied to the ranging procedure. For example, the ranging initiator and the ranging responder can exchange their respective capabilities in the ranging capability exchange phase, and then assign roles and parameters for different sensing responders in the ranging measurement session phase to complete the establishment of the ranging measurement session. After the ranging measurement session is completed, the ranging initiator can initiate one or more ranging measurement exchanges. The description of the ranging procedure can refer to the sensing procedure, and thus will not be repeated here.

[0350] The following describes the sensing measurement exchange procedure in the sensing measurement session.

[0351] FIG. 4 is a flow diagram of a TB sensing measurement exchange according to an embodiment of the present application. As shown in FIG. 4, one TB sensing measurement exchange can include at least one of the following four phases: a polling phase, an NDPA sounding phase, a trigger frame (TF) sounding phase, or a reporting phase. For example, one TB sensing measurement exchange can include one phase, which can be the TF sounding phase. For another example, one TB sensing measurement exchange can include the NDPA sounding phase and the TF sounding phase. For another example, one TB sensing measurement exchange can include the polling phase and the TF sounding phase. For another example, one TB sensing measurement exchange can include the polling phase, the NDPA sounding phase, and the reporting phase. For another example, one TB sensing measurement exchange can include the TF sounding phase and the reporting phase. For another example, one TB sensing measurement exchange can include the NDPA sounding phase and the reporting phase. For another example, one TB measurement phase can include the polling phase, the NDPA sounding phase, the TF sounding phase, and the reporting phase (as shown in FIG. 4), and the like, which will not be listed one by one here. The description of the phases provided herein is applicable to each method provided below, and thus will not be repeated here. Although the polling phase, the NDPA sounding phase, the TF sounding phase, and the reporting phase are shown at the same time, it should not be construed as a limitation of the present application. The following describes each phase in detail:

[0352] (1) Polling phase

[0353] In the TB sensing measurement interaction, the AP as the sensing initiator can send a sensing poll trigger frame to STAs that want to be invited to participate in the sensing measurement interaction in the polling phase, to invite the STAs to participate in the sensing measurement interaction. The STAs participating in the sensing measurement interaction can reply a CTS-to-self frame on the resource allocated by the AP, to confirm participation in the sensing measurement interaction. That is, the sensing poll trigger frame can be used for the sensing initiator to inquire one or more sensing responders whether to participate in the sensing measurement interaction. The CTS-to-self frame can be used to confirm participation in the sensing measurement interaction. As shown in FIG. 4, the AP can invite STAs 1-6 to participate in the sensing measurement interaction process. STAs 1, 2, 4, and 5 confirm participation in the sensing measurement interaction.

[0354] When the number of sensing responders is large and the sensing initiator cannot implement polling with all the sensing responders at one time, the sensing initiator can initiate multiple polling. For example, when the number of sensing responders is greater than the number of resource units (RUs) that the sensing initiator can allocate (only an example), the sensing initiator can initiate multiple polling.

[0355] In the embodiments of the present application, the name of the sensing poll trigger frame is only an example, and the sensing poll trigger frame can also be referred to as a sensing poll frame or a poll trigger frame or a poll frame (or simply a poll), which is not limited in the present application. For the sake of brevity, the poll frame is taken as an example in the following description.

[0356] (2) NDPA probe phase

[0357] In the NDPA probe phase, the sensing initiator sends a sensing NDPA frame to one or more sensing responders that confirm participation in the NDPA probe, and sends an SI2SR NDP after a predetermined interval (for example, a short inter frame space (SIFS)). The sensing responders receive the SI2SR NDP according to the information in the sensing NDPA frame, to implement sensing measurement. That is, the sensing NDPA frame can be used to schedule one or more sensing responders participating in the NDPA probe phase. The SI2SR NDP is one of sensing PPDUs, and the SI2SR NDP can be used for sensing, to implement sensing measurement from the sensing initiator to the sensing responders. The SI2SR NDP can be any one of the following types: a sensing NDP, a ranging NDP, an IMMW sensing NDP, an IMMW ranging NDP, or a data PPDU. The specific format of the SI2SR NDP is not limited in the present application.

[0358] The specific time length of the predetermined interval length is not limited in the embodiments of the present application, and SIFS is only an example. In the embodiments of the present application, the name of the sensing NDAP frame is only an example, and the sensing NDAP frame can also be referred to as an NDPA frame (or simply an NDPA) and the like, which is not limited in the present application. For the sake of brevity, the NDPA frame is taken as an example in the following description.

[0359] (3) TF detection phase

[0360] In the TF detection phase, the sensing initiator sends a sensing SR2SI detection trigger frame to one or more sensing responders that confirm to participate in the TF detection, and the sensing responders send SR2SI NDPs according to the information allocated by the SR2SI detection trigger frame to implement sensing measurement. That is, the sensing SR2SI detection trigger frame can be used to allocate measurement resources for the sensing responders. After receiving the sensing SR2SI detection trigger frame, the sensing responders can send SR2SI NDPs according to the allocated measurement resources. The measurement resources can include, but are not limited to, spatial streams or space-time streams and the like.

[0361] When the number of sensing responders is large, for example, the number of sensing responders is greater than a number threshold, the sensing initiator can initiate multiple TF detection phases. Exemplarily, the number threshold can be determined by the maximum number of spatial streams that can be scheduled by the sensing initiator. That is, in the case that the number of sensing responders is greater than the number threshold, the sensing initiator can not be able to complete the sensing measurement through one TF detection phase, and thus the sensing initiator can initiate multiple TF detection phases.

[0362] In the embodiments of the present application, the name of the sensing SR2SI detection trigger frame is only an example, and the sensing SR2SI detection trigger frame can also be referred to as a detection trigger frame (or simply a detection trigger) or a sensing detection trigger frame and the like, which is not limited in the embodiments of the present application. For the sake of brevity, the detection trigger frame is taken as an example in the following description.

[0363] (4) Reporting phase

[0364] In the reporting phase, the sensing initiator sends a sensing report trigger frame to one or more sensing responders that confirm to participate in the reporting phase, and the sensing responders send sensing measurement report frames according to the sensing report trigger frame. That is, the sensing report trigger frame can be used to allocate resources for the sensing responders, and the sensing responders can send sensing measurement report frames according to the allocated resources, and the sensing measurement report frames can be used to report sensing measurement results.

[0365] In embodiments of the present application, the name of the sensing report trigger frame is only an example, and the sensing report trigger frame can also be referred to as a report trigger frame (or simply a report trigger) and the like, which is not limited in the present application. The sensing measurement report frame can also be referred to as a report frame (or simply a report) and the like, which is not limited in the present application. For the sake of brevity, the report trigger frame and the report frame are taken as examples in the following description.

[0366] In embodiments of the present application, different stages of a TB measurement interaction can occur within a sensing availability window. When a TB measurement interaction includes the above four stages at the same time, the polling stage, the NDPA probe stage, the TF probe stage, and the report stage can occur within a sensing availability window. For example, a sensing availability window can include multiple transmission opportunities (TXOPs), and one or more sensing measurement interactions can occur within a TXOP.

[0367] The roles of STA1 to STA2 in FIG. 4 can be sensing transmitters, and the roles of STA4 to STA6 can be sensing receivers. When the AP sends the sensing poll trigger frame to STA1 to STA5, STA3 does not reply to the CTS-to-self frame, so STA3 does not participate in the sensing process. The sensing poll trigger frame is optional, and STA6 can skip the polling stage. The negotiation between the AP and STA4 can not feed back the sensing measurement result, so although STA4 completes the sensing measurement based on the SI2SR NDP it receives in FIG. 4, STA4 can not report the sensing measurement result through the sensing measurement report frame in the report stage, such as reporting the sensing measurement result through the upper layer. The sensing measurement result can include CSI or channel impulse response (CIR) and the like.

[0368] As the standard progresses, the specific process of the TB sensing measurement interaction can change, so the process of the TB sensing measurement interaction shown in FIG. 4 is only an example, and should not be understood as a limitation of embodiments of the present application. When the process of the TB sensing measurement interaction changes, the various examples shown below can also change.

[0369] In combination with the TB sensing measurement interaction shown in FIG. 4 and the transmission mode described above, a variety of TB sensing measurement interactions with high and low frequency cooperation can be extended. The sensing communication method shown in embodiments of the present application is described below through different examples. The examples one to five shown below are only examples, and more examples can be extended in combination with the transmission mode described above and FIG. 4, which will not be listed one by one. The description of the sensing communication method here is also applicable to the ranging communication method shown below, which will not be described again.

[0370] In the second frequency band is the frequency band involved in the IMMW standard, the following examples one to five can also be referred to as IMMW high-low frequency cooperative TB sensing measurement interaction, or IMMW TB sensing measurement interaction, or IMMW high-low frequency mixed TB sensing measurement interaction.

[0371] For ease of description, the following will take two sensing response ends as an example to illustrate the sensing communication method shown in the present application when referring to specific examples, but the number of sensing response ends should not be regarded as a limitation on the present application.

[0372] Example one,

[0373] FIG. 5 is a flow diagram of a TB sensing measurement interaction provided by an embodiment of the present application. Other descriptions of the stages shown in FIG. 5 can be referred to FIG. 4, which will not be described hereinafter. As shown in FIG. 5, the TB sensing measurement interaction can include:

[0374] (1A) Polling stage: the sensing initiator sends a polling frame in the first frequency band, and correspondingly, the sensing response end receives the polling frame in the first frequency band. The sensing response end participating in the interaction replies to a CTS-to-self frame in the first frequency band to confirm its participation in the sensing measurement interaction.

[0375] The sensing initiator can send the polling frame omnidirectionally in the first frequency band (or referred to as low frequency). The address of the polling frame can be a broadcast address. Since the signal on the low frequency is less affected by the shielding, the sensing initiator can make the sensing response ends in different directions receive the polling frame by sending the polling frame on the low frequency. Thus, the polling can be efficiently completed, and the polling efficiency is improved. The description of the sensing initiator sending the polling frame on the low frequency can also be referred to the above-mentioned manner 1, which will not be described hereinafter.

[0376] In the case that the number of sensing response ends is greater than or equal to 2, as a possible implementation manner, the sensing initiator can schedule the resources of each sensing response end through the polling frame to be mutually non-interfering or the interference is less than a threshold, such as assigning different RUs or multiple RU (MRU) or distributed resource unit (DRU) to different sensing response ends. Thus, each sensing response end can send the CTS-to-self frame at the same time. That is, each sensing response end can send the CTS-to-self frame in the form of multi-user (MU). The present application embodiment does not limit the specific duration of the same time.

[0377] In the embodiment of the present application, the signal transmitted on the low frequency is less affected by the shielding, and therefore the interaction in the polling stage is completed on the low frequency, which can efficiently complete the polling and improve the polling efficiency. Meanwhile, the sensing response end can efficiently confirm the sensing initiation end in the MU mode, further improving the polling efficiency.

[0378] (2A) NDPA detection stage: the sensing initiation end transmits an NDPA frame on the first frequency band, and the corresponding sensing response end receives the NDPA frame on the first frequency band. The sensing initiation end transmits a first PPDU for sensing on the second frequency band, and the corresponding sensing response end receives the first PPDU on the second frequency band.

[0379] The sensing initiation end can transmit the NDPA frame omnidirectionally on the low frequency, and the receiving address of the NDPA frame can be a broadcast address. The sensing initiation end transmits the NDPA frame omnidirectionally on the low frequency, which can efficiently transmit the NDPA frame and less affected by the shielding. The description of the sensing initiation end transmitting the NDPA frame on the low frequency can refer to the above-mentioned mode 1, which will not be described in detail here.

[0380] In the embodiment of the present application, in the case that the sensing measurement interaction in the NDPA detection stage includes the polling stage shown in (1A), the polling frame, the CTS-to-self frame and the NDPA frame can all be located in the same TXOP on the low frequency, thereby reducing the number of channel contention. Generally, an AP or a STA can be allocated with a service period (SP), or SPs are allocated between multiple STAs. Within the SP, other devices can not contend for the channel with the device allocated with the SP. Therefore, the above-mentioned polling frame, CTS-to-self frame and NDPA frame can also be located in the SP allocated by the AP, or in the SP allocated by the STA, or in the SP between the AP and the STA, which is not limited in the embodiment of the present application. Generally, the step of allocating the SP can be performed by the AP, and of course, with the development of the standard, other devices can also appear in the future, which is not limited in the embodiment of the present application. Hereinafter, the allocated SP is taken as an example, and whether this SP is allocated by which device or by which device, it will not be described in detail hereinafter.

[0381] After the sensing initiation end transmits the NDPA frame on the low frequency, the sensing initiation end can switch to transmit the first PPDU on the high frequency. The transmission mode of the first PPDU on the high frequency can refer to 7, which will not be described in detail here.

[0382] In Fig. 5, the NDPs in the ellipses are omitted. As when Fig. 5 shows the case of 3 NDPs, the sensing initiator can send the 3 NDPs in different or same directions, and the sensing responder 1 and the sensing responder 2 can receive the 3 NDPs. Alternatively, the sensing initiator can send the 3 NDPs again in different or same directions, and the sensing responder 2 can receive the 3 NDPs. The specific sending manner of the NDPs is not limited in the embodiments of the present application.

[0383] In the embodiments of the present application, after the sensing initiator switches from the low frequency to the high frequency, the sensing initiator can contend for the channel to obtain a TXOP, and send the first PPDU in the TXOP, or the sensing initiator can send the first PPDU in the allocated SP. Exemplarily, the one or more first PPDUs sent by the sensing initiator can belong to the same TXOP or an SP.

[0384] In the embodiments of the present application, the NDPA frame is sent on the low frequency, so that the NDPA frame can be sent efficiently and is less affected by the occlusion, and it is ensured that each sensing responder can receive the NDPA frame. Meanwhile, the first PPDU is sent on the high frequency, so that the sensing performance can be improved.

[0385] (3A) TF detection phase: the sensing initiator sends a probe trigger frame on the first frequency band, and correspondingly, the sensing responder receives the probe trigger frame on the first frequency band. The sensing responder sends a second PPDU for sensing on the second frequency band, and correspondingly, the sensing initiator receives the second PPDU on the second frequency band.

[0386] In the case where the sensing measurement interaction in which the TF detection phase is located includes the NDPA detection phase shown in (2A), after the sensing initiator sends the above first PPDU on the high frequency, the sensing initiator can switch to the low frequency.

[0387] In the case where the sensing measurement interaction in which the TF detection phase is located includes the polling phase shown in (1A) and does not include the NDPA detection phase shown in (2A), after the sensing initiator receives the CTS-to-self frame on the low frequency, the sensing initiator can continue to send the probe trigger frame on the low frequency. Similarly, the description about the sensing initiator herein also applies to the sensing responder.

[0388] Alternatively, the polling frame, the CTS-to-self frame and the probe trigger frame can belong to the same TXOP or SP.

[0389] As an example, the number of sensing responders can be 1.

[0390] As another example, the number of sensing response terminals may be greater than or equal to 2. In the case where the number of sensing response terminals is greater than or equal to 2, the transmission mode of the detection trigger frame and the transmission mode of the second PPDU may include:

[0391] As an example, the sensing initiator sends a detection trigger frame to multiple sensing responders at different times, and the receiving address of the detection trigger frame can be the address of the corresponding sensing responder. The sensing responder sends the second PPDU at different times. For example, the sensing initiator can send a detection trigger frame to the sensing responder 1 at the first time. The address of the detection trigger frame can be the address of the sensing responder 1, and the detection trigger frame includes the measurement resources allocated by the sensing initiator to the sensing responder 1. After receiving the above-mentioned detection trigger frame at a low frequency, the sensing responder 1 can perform channel competition at a high frequency to obtain a TXOP, and send a second PPDU within the TXOP or within the allocated SP according to the measurement resources allocated in the detection trigger frame. The sensing responder 1 can send one or more second PPDUs at a high frequency, such as sending one or more second PPDUs in different directions. Exemplarily, the aforementioned one or more second PPDUs can belong to the same TXOP or SP. After the perception initiator completes the perception measurement with the perception responder 1 at the high frequency, the perception initiator can switch to the low frequency, perform channel competition at the low frequency to obtain a TXOP, and send a detection trigger frame to the perception responder 2 at the low frequency within the TXOP or within the allocated SP. The address of the detection trigger frame can be the address of the perception responder 2, and the detection trigger frame includes the measurement resources allocated by the perception initiator to the perception responder 2. Similarly, the manner in which the perception responder 2 sends the second PPDU can refer to the description of the perception responder 1 above and will not be repeated here. The sending method shown in Figure 5 is only an example and should not be understood as limiting the embodiments of the present application.

[0392] As another example, the sensing initiator simultaneously sends a detection trigger frame to multiple sensing responders, where the receiving address of the detection trigger frame is a broadcast address. For example, the detection trigger frame may include measurement resources allocated by the sensing initiator to sensing responder 1 and measurement resources allocated by the sensing initiator to sensing responder 2.

[0393] As another example, the sensing initiator can send a probe trigger frame to multiple sensing responders simultaneously, the receiving address of the probe trigger frame being the address of each sensing responder. For example, the receiving address of the probe trigger frame sent by the sensing initiator to the sensing responder 1 can be the address of the sensing responder 1, and the probe trigger frame can include the measurement resource allocated by the sensing initiator to the sensing responder 1, etc. After receiving the probe trigger frame, the aforementioned multiple sensing responders can perform channel contention on the high frequency to obtain a TXOP or within the allocated SP, and send the second PPDU in the form of MU. For example, in order to reduce or avoid interference, the sensing initiator can schedule different sensing responders to send the second PPDU on different resources (such as different RUs or MRUs or DRUs or different directions, etc.).

[0394] The sending mode of the probe trigger frame can refer to the above-mentioned mode 3 or mode 4, and the sending mode of the second PPDU can refer to the above-mentioned mode 8, which will not be described one by one here.

[0395] (4A) Reporting stage: the sensing initiator sends a report trigger frame on the first frequency band, and correspondingly, the sensing responder receives the report trigger frame on the first frequency band. The sensing responder sends a report frame on the first frequency band, and correspondingly, the sensing initiator receives the report frame on the first frequency band.

[0396] In the case where the sensing measurement interaction in which the reporting stage is located includes the TF probe stage shown in (3A), the sensing initiator can switch to the low frequency after receiving the second PPDU on the high frequency. The sensing initiator can perform channel contention on the low frequency to obtain a TXOP, or within the allocated SP, send a report trigger frame to one or more sensing responders.

[0397] In the case where the sensing measurement interaction in which the reporting stage is located includes the NDPA probe stage shown in (2A) and does not include the TF probe stage shown in (3A), the sensing initiator can switch to the low frequency after sending the first PPDU on the high frequency. The sensing initiator can perform channel contention on the low frequency to obtain a TXOP, or within the allocated SP, send a report trigger frame to one or more sensing responders. Similarly, the description of the sensing initiator here also applies to the sensing responder.

[0398] As an example, the sensing initiator can send a report trigger frame to multiple sensing responders respectively, and the receiving address of the report trigger frame can be the address of the corresponding sensing responder. In this way, the sensing initiator can trigger the sensing responders to send the report frame in a one-by-one triggering manner.

[0399] As another example, the sensing initiator can send a report trigger frame to multiple sensing responders, and the receiving address of the report trigger frame can be a broadcast address. Thus, the sensing responders can send the report frame in the form of MU.

[0400] The sending manner of the report trigger frame shown in (4A) can refer to the above manner 1 or manner 2, which will not be described in detail here.

[0401] Generally, in the case that the sensing initiator (or the sensing responder) does not perform frequency band switching, the signals transmitted by the sensing initiator (or the sensing responder) on the low frequency can belong to the same TXOP or one SP; or the signals transmitted by the sensing initiator (or the sensing responder) on the high frequency can belong to the same TXOP or one SP. For example, in FIG. 5, the sensing initiator sends a poll frame on the low frequency and receives a CTS-to-self frame on the low frequency, and thus the poll frame and the CTS-to-self frame can belong to the same TXOP or one SP. For another example, in FIG. 5, the sensing initiator sends a report trigger frame on the low frequency and receives a report frame on the low frequency, and thus the report trigger frame and the report frame can belong to the same TXOP or one SP. Alternatively, in the case that no frequency band switching is performed, different signals transmitted by the sensing initiator on the low frequency can also belong to different TXOPs, which is not limited in the present application.

[0402] Alternatively, the above poll frame, CTS-to-self frame, report trigger frame and report frame can also be completed in the same TXOP. Thus, in the case that the sensing initiator (or the sensing responder) switches from the high frequency to the low frequency, the sensing initiator (or the sensing responder) can not perform channel contention access. Alternatively, in the case that the sensing initiator (or the sensing responder) switches from the low frequency to the high frequency or from the high frequency to the low frequency, the sensing initiator (or the sensing responder) can also re-contend for the channel to obtain the TXOP.

[0403] The above description about the TXOP or SP also applies here. The description about the TXOP or SP will not be described in detail hereinafter.

[0404] In the embodiments of the present application, in addition to the transmission (such as sending or receiving) of the first PPDU and the second PPDU on the high frequency, other control frames are transmitted on the low frequency, thereby effectively ensuring the stability and anti-blocking of the transmission of the control frames, improving the sending efficiency of the control frames, ensuring the smooth performance of the sensing measurement, simultaneously utilizing the large bandwidth on the high frequency for measurement, and improving the sensing performance.

[0405] Example two,

[0406] FIG. 6 is another flow diagram of the TB-aware measurement interaction according to an embodiment of the present application. Other descriptions of the stages shown in FIG. 6 can refer to FIG. 4, which will not be repeated here. As shown in FIG. 6, the TB-aware measurement interaction can include:

[0407] (1B) Polling stage: the sensing initiator transmits a polling frame in the first frequency band, and correspondingly, the sensing responder receives the polling frame in the first frequency band. The sensing responder participating in the interaction replies a CTS-to-self frame in the first frequency band to confirm its participation in the sensing measurement interaction.

[0408] The description of (1B) can refer to (1A) above, which will not be repeated here.

[0409] (2B) NDPA sounding stage: the sensing initiator transmits an NDPA frame in the first frequency band, and correspondingly, the sensing responder receives the NDPA frame in the first frequency band. The sensing initiator transmits a first PPDU for sensing in the second frequency band, and correspondingly, the sensing responder receives the first PPDU in the second frequency band.

[0410] The description of (2B) can refer to (2A) above, which will not be repeated here.

[0411] (3B) TF sounding stage: the sensing initiator transmits a sounding trigger frame in the second frequency band, and correspondingly, the sensing responder receives the sounding trigger frame in the second frequency band. The sensing responder transmits a second PPDU for sensing in the second frequency band, and correspondingly, the sensing initiator receives the second PPDU in the second frequency band.

[0412] In the case where the sensing measurement interaction in which the TF sounding stage is located includes the NDPA sounding stage shown in (3B), the sensing initiator can continue to transmit the sounding trigger frame in the second frequency band after transmitting the first PPDU. For example, as described above with respect to TXOP or SP in FIG. 5, since the first PPDU, the sounding trigger frame, and the second PPDU are all transmitted in the second frequency band, the first PPDU, the sounding trigger frame, and the second PPDU can belong to the same TXOP or SP. Thus, the number of switching between high frequency and low frequency can be reduced, the number of channel contention can be reduced, the complexity of channel access can be reduced, and thus the complexity of the sensing process can be reduced.

[0413] In the case where the sensing measurement interaction in which the TF sounding stage is located includes the polling stage shown in (1B) and does not include the NDPA sounding stage shown in (2B), the sensing initiator can switch to the high frequency after receiving the CTS-to-self frame in the low frequency, and transmit the sounding trigger frame in the high frequency. For example, the polling frame, the CTS-to-self frame, and the sounding trigger frame can belong to the same TXOP or SP. Similarly, the description of the sensing initiator herein also applies to the sensing responder.

[0414] The sensing initiator can send the probe trigger frame to the multiple sensing responders at different time instants, and the receiving address of the probe trigger frame can be the address of the corresponding sensing responder. The sensing responders can send the second PPDU at different time instants. The sensing initiator can also send the probe trigger frame at the same time instant, and the receiving address of the probe trigger frame can be the broadcast address or the address of the corresponding sensing responder. The sensing responders can send the second PPDU in the MU mode (for example, refer to the above-mentioned mode 8). The manner of transmitting the probe trigger frame in the high frequency can refer to the above-mentioned mode 5 or mode 6, and the like, which will not be described here in detail.

[0415] (4B) Reporting stage: the sensing initiator sends a report trigger frame in the first frequency band, and the corresponding sensing responder receives the report trigger frame in the first frequency band. The sensing responder sends a report frame in the first frequency band, and the corresponding sensing initiator receives the report frame in the first frequency band.

[0416] The description of (4B) can refer to (4A) above, which will not be described here in detail.

[0417] In the embodiments of the present application, the frames in the TF detection stage are transmitted in the high frequency, which can effectively reduce the switching times and the complexity of channel access, can effectively guarantee the efficiency of the sensing measurement, and reduce the complexity of the sensing measurement. At the same time, the large bandwidth in the high frequency is used for measurement, which improves the sensing performance.

[0418] Example three,

[0419] FIG. 7 is another flow diagram of the TB sensing measurement interaction provided by the embodiments of the present application. The other descriptions of the stages shown in FIG. 7 can refer to FIG. 4, which will not be described here in detail. As shown in FIG. 7, the TB sensing measurement interaction can include:

[0420] (1C) Polling stage: the sensing initiator sends a polling frame in the first frequency band, and the corresponding sensing responder receives the polling frame in the first frequency band. The sensing responder participating in the interaction replies to the CTS-to-self frame in the first frequency band to confirm that it participates in the sensing measurement interaction.

[0421] The description of (1C) can refer to (1A) above, which will not be described here in detail.

[0422] (2C) NDPA detection stage: the sensing initiator sends an NDPA frame in the first frequency band, and the corresponding sensing responder receives the NDPA frame in the first frequency band. The sensing initiator sends the first PPDU for sensing in the second frequency band, and the corresponding sensing responder receives the first PPDU in the second frequency band.

[0423] The description of (2C) can refer to (2A) and the like, which will not be repeated here.

[0424] (3C) TF probe stage: the sensing initiator transmits a probe trigger frame in the second frequency band, and correspondingly, the sensing responder receives the probe trigger frame in the second frequency band. The sensing responder transmits a second PPDU for sensing in the second frequency band, and correspondingly, the sensing initiator receives the second PPDU in the second frequency band.

[0425] The description of (3C) can refer to (3B) and the like, which will not be repeated here.

[0426] (4C) Report stage: the sensing initiator transmits a report trigger frame in the second frequency band, and correspondingly, the sensing responder receives the report trigger frame in the second frequency band. The sensing responder transmits a report frame in the second frequency band, and correspondingly, the sensing initiator receives the report frame in the second frequency band.

[0427] As an example, the sensing measurement interaction in which the report stage is located includes the TF probe stage shown in (3C). At this time, after the sensing initiator receives the second PPDU on the high frequency, the sensing initiator can continue to trigger the sensing responder to report the sensing measurement result on the high frequency.

[0428] As another example, the sensing measurement interaction in which the report stage is located includes the NDPA probe stage shown in (2C) and does not include the TF probe stage shown in (3C). At this time, after the sensing initiator transmits the first PPDU on the high frequency, the sensing initiator can continue to trigger the sensing responder to report the sensing measurement result on the high frequency. Similarly, the description of the sensing initiator herein also applies to the sensing responder.

[0429] The manner in which the sensing initiator transmits the report trigger frame can refer to the above-mentioned manner 5 or manner 6. For example, the sensing initiator can transmit the report trigger frame on the high frequency at different time instants (such as the above-mentioned manner 6), and the sensing responder transmits the report frame at different time instants. As shown in FIG. 7, the sensing initiator can first trigger the sensing responder 1 to report the sensing measurement result, and then trigger the sensing responder 2 to report the sensing measurement result. For another example, the sensing initiator can transmit the report trigger frame on the high frequency at the same time (such as the above-mentioned manner 5), such as the sensing initiator can transmit the report trigger frame in different directions to ensure that the aforementioned multiple sensing responders can receive the report trigger frame. The receiving address of the report trigger frame can be a broadcast address or an address of the corresponding sensing responder. The sensing responder can transmit the report frame in the manner of MU.

[0430] For example, the first PPDU, the probe trigger frame, the second PPDU, the report trigger frame or the report frame transmitted on the high frequency can belong to the same TXOP or SP.

[0431] In the embodiments of the present application, the frames involved in the TF detection stage, the frames involved in the reporting stage, and the first PPDU in the NDPA detection stage are all transmitted on the high frequency, so that the number of switching between the high frequency and the low frequency and the complexity of corresponding channel access can be effectively reduced, the efficiency of the sensing measurement can be effectively ensured, and the complexity of the sensing measurement can be reduced. Meanwhile, the large bandwidth on the high frequency is utilized for measurement, and the sensing performance is improved.

[0432] Example four,

[0433] FIG. 8 is another flow diagram of the TB sensing measurement interaction provided by the embodiments of the present application. The other descriptions of the stages shown in FIG. 8 can be referred to FIG. 4, and will not be repeated here. As shown in FIG. 8, the TB sensing measurement interaction can include:

[0434] (1D) Polling stage: the sensing initiator transmits a polling frame on the first frequency band, and correspondingly, the sensing responder receives the polling frame on the first frequency band. The sensing responder participating in the interaction replies to a CTS-to-self frame on the first frequency band to confirm that it participates in the sensing measurement interaction.

[0435] The description of (1D) can be referred to (1A) and the like above, and will not be repeated here.

[0436] (2D) NDPA detection stage: the sensing initiator transmits an NDPA frame on the second frequency band, and correspondingly, the sensing responder receives the NDPA frame on the second frequency band. The sensing initiator transmits a first PPDU for sensing on the second frequency band, and correspondingly, the sensing responder receives the first PPDU on the second frequency band.

[0437] As an example, the sensing measurement interaction in which the NDPA detection stage is located includes the polling stage shown in (1D), and the sensing initiator can switch from the low frequency to the high frequency, and transmit the sensing NDPA frame and the first PPDU on the high frequency.

[0438] As another example, the sensing measurement interaction in which the NDPA detection stage is located does not include the polling stage shown in (1D), and the sensing initiator can transmit the sensing NDPA frame and the first PPDU on the high frequency. Similarly, the description of the sensing initiator here is also applicable to the sensing responder.

[0439] The description of the sensing initiator sending the NDPA frame at the high frequency can refer to the above-mentioned manner 5 or manner 6. For example, the sensing initiator can send the NDPA frame at the high frequency at different time instants (as in the above-mentioned manner 6), and send the first PPDU at different time instants. One or more first PPDUs can be sent at the same time instant, which is not limited in the embodiments of the present application. For another example, the sensing initiator can send the NDPA frame at the high frequency in different directions to ensure the successful reception of the NDPA frame. For another example, when the NDPA frame is set to be silent to other nodes (NAV) (i.e., other nodes are in a silent state), the sensing initiator can also send the NDPA frame in all directions. The two NDPA frames shown in FIG. 8 are only examples, and should not be understood as a limitation to the embodiments of the present application.

[0440] (3D) TF detection phase: the sensing initiator sends a detection trigger frame at the second frequency band, and correspondingly, the sensing responder receives the detection trigger frame at the second frequency band. The sensing responder sends a second PPDU for sensing at the second frequency band, and correspondingly, the sensing initiator receives the second PPDU at the second frequency band.

[0441] As an example, the sensing measurement interaction in which the TF detection phase is located includes the NDPA detection phase shown in (2B), then after the sensing initiator finishes sending the first PPDU at the high frequency, the sensing initiator can continue to send the detection trigger frame at the high frequency and receive the second PPDU. Similarly, the description of the sensing initiator herein also applies to the sensing responder.

[0442] As another example, the sensing measurement interaction in which the TF detection phase is located includes the polling phase shown in (1D), and does not include the NDPA detection phase shown in (2B), then the sensing initiator can switch from the low frequency to the high frequency, send the detection trigger frame at the high frequency, and receive the second PPDU.

[0443] The description of (3D) can also refer to (3B) and the like above, which will not be repeated here.

[0444] (4D) reporting phase: the sensing initiator sends a reporting trigger frame at the second frequency band, and correspondingly, the sensing responder receives the reporting trigger frame at the second frequency band. The sensing responder sends a reporting frame at the second frequency band, and correspondingly, the sensing initiator receives the reporting frame at the second frequency band.

[0445] The description of (4D) can refer to (4C) and the like above, which will not be repeated here.

[0446] For example, the NDPA frame, the first PPDU, the detection trigger frame, the second PPDU, the reporting trigger frame, and the reporting frame transmitted at the high frequency can belong to the same TXOP or SP.

[0447] In the embodiments of this application, the frames involved in the NDPA detection stage, the frames involved in the TF detection stage, and the frames involved in the reporting stage are all transmitted on the high frequency, so that the number of switching between the high frequency and the low frequency and the complexity of corresponding channel access can be further reduced, the efficiency of the sensing measurement is ensured, and the complexity of the sensing measurement is reduced. Meanwhile, the sensing performance is improved by using the large bandwidth on the high frequency for measurement.

[0448] Example five,

[0449] FIG. 9 is another flow diagram of the TB sensing measurement interaction provided by the embodiments of this application. The other descriptions of the stages shown in FIG. 9 can be referred to FIG. 4, and will not be described here again. As shown in FIG. 9, the TB sensing measurement interaction can include:

[0450] (1E) Polling stage: the sensing initiator transmits a polling frame on the second frequency band, and correspondingly, the sensing responder receives the polling frame on the second frequency band. The sensing responder participating in the interaction replies to a CTS-to-self frame to confirm that it participates in the sensing measurement interaction on the second frequency band.

[0451] As an example, the address of the polling frame can be a broadcast address, and the sensing initiator can transmit the polling frame in different directions, so that more sensing responders can receive the polling frame.

[0452] As another example, the sensing initiator can transmit the polling frame at different time instants. As shown in FIG. 9, the sensing initiator can transmit the polling frame at a first time instant, and the sensing responder 1 replies to a CTS-to-self frame after receiving the polling frame. The sensing initiator transmits the polling frame at a second time instant, and the sensing responder 2 replies to a CTS-to-self frame after receiving the polling frame. The transmission mode of the polling frame or the transmission mode of the CTS-to-self can be referred to the above mode 5 or mode 6, and will not be described here again.

[0453] (2E) NDPA detection stage: the sensing initiator transmits a sensing NDPA frame on the second frequency band, and correspondingly, the sensing responder receives the sensing NDPA frame on the second frequency band. The sensing initiator transmits a first PPDU for sensing on the second frequency band, and correspondingly, the sensing responder receives the first PPDU on the second frequency band.

[0454] The description of (2E) can be referred to (2D) and the like above, and will not be described here again.

[0455] (3E) TF detection stage: the sensing initiator transmits a sounding trigger frame on the second frequency band, and correspondingly, the sensing responder receives the sounding trigger frame on the second frequency band. The sensing responder transmits a second PPDU for sensing on the second frequency band, and correspondingly, the sensing initiator receives the second PPDU on the second frequency band.

[0456] The description of (3E) can also refer to (3B) and the like, which will not be repeated here.

[0457] (4E) Reporting phase: the sensing initiator transmits a report trigger frame in the second frequency band, and correspondingly, the sensing responder receives the report trigger frame in the second frequency band. The sensing responder transmits a report frame in the second frequency band, and correspondingly, the sensing initiator receives the report frame in the second frequency band.

[0458] The description of (4E) can refer to (4C) and the like, which will not be repeated here.

[0459] Exemplarily, the polling frame, the CTS-to-self frame, the NDPA frame, the first PPDU, the probe trigger frame, the second PPDU, the report trigger frame, and the report frame transmitted on the high frequency can belong to the same TXOP or SP.

[0460] In the embodiments of the present application, the frames involved in each phase of the sensing measurement interaction are transmitted on the high frequency, and the sensing initiator (or the sensing responder) does not need to perform additional channel switching, reduces the complexity of channel access, can effectively guarantee the efficiency of the sensing measurement, and reduces the complexity of the sensing measurement. At the same time, the large bandwidth on the high frequency is used for measurement, which improves the sensing performance.

[0461] It can be understood that the transmission modes of the frames shown in the accompanying drawings of FIGS. 5-10 are only examples, and the modes shown in the accompanying drawings should not be understood as limiting the present application.

[0462] FIG. 10 is a flow diagram of a non-TB sensing measurement interaction provided by the embodiments of the present application. As shown in FIG. 10, the flow of the non-TB sensing measurement interaction can be as follows:

[0463] In the non-TB sensing measurement interaction, the STA as the sensing initiator can transmit a sensing NDPA frame, and transmit an SI2SR NDP after a predetermined interval duration (such as SIFS). The AP as the sensing responder transmits an SR2SI NDP after SIFS, and performs a reporting phase after SIFS. The AP includes the measured sensing measurement result in a sensing measurement report frame, and thus reports to the sensing initiator.

[0464] Exemplarily, the sensing measurement result reported by the AP can be a sensing measurement result obtained based on the SI2SR NDP, such as CSI from the STA to the AP. The AP transmits the SR2SI NDP, and the STA receives the SR2SI NDP. The STA can obtain the sensing measurement result based on the SR2SI NDP, such as CSI from the AP to the STA.

[0465] In the non-TB-aware measurement interaction, the STA can flexibly indicate the STA-to-AP or AP-to-STA aware measurement information through the aware NDPA frame. The aware measurement information can include, but is not limited to, information of a transmission beam of an aware PPDU, information of a reception beam, spatial stream information, transmission power information, or the number of repetitions of a field, etc. When the aware NDPA frame indicates the STA-to-AP aware measurement information, the aware initiator can send an SI2SR NDP to the aware responder in different directions. When the aware NDPA frame indicates the AP-to-STA aware measurement information, the aware responder can send an SR2SI NDP to the aware initiator in different directions. The transmission direction of the SI2SR NDP or the SR2SI NDP can be determined by a transmission beam. For example, the transmission beam can be determined by at least one of a first beam index field or a number of beams per exchange field. The first beam index field can be carried in the aware NDPA frame. The number of beams per exchange field can be carried in the aware measurement request frame. The aware measurement request frame can further include a transmission beam list. The aware transmitter can determine a specific beam index from the transmission beam list through the first beam index field and the number of beams per exchange field, and determine a specific beam from a beam description field (or a beam description element) through the beam index. The specific determination method of the transmission beam is not limited in the embodiments of the present application.

[0466] When no STA-to-AP sensing measurement is performed, i.e., the sensing NDPA frame does not indicate the STA-to-AP sensing measurement information, the SI2SR NDP can be a predetermined NDP, and the AP can not send the sensing measurement report frame. When no AP-to-STA sensing measurement is performed, i.e., the sensing NDPA frame does not indicate the AP-to-STA sensing measurement information, the SR2SI NDP can also be a predetermined NDP. The predetermined NDP can be such that the number of space-time streams (NSTS) (or the number of spatial streams (NSS)) in the NDP is set to 0, and the SR2SI repetition (SR2SI rep) field in the NDP is set to 0. Alternatively, the predetermined NDP can be such that the number of space-time streams (NSTS) (or the number of spatial streams (NSS)) in the NDP is set to 0, and the SI2SR repetition (SI2SR rep) field in the NDP is set to 0.

[0467] FIGS. 11-13 below are all examples in which the sensing NDPA frame indicates the STA-to-AP sensing measurement information and the AP-to-STA sensing measurement information, but should not be construed as a limitation on the embodiments of the present application.

[0468] In the embodiments of the present application, different stages of a non-TB sensing measurement interaction can occur within a sensing available window. The sensing available window is described in FIG. 4, and will not be described in detail here.

[0469] The sensing communication method of the present application is described below through different examples. When the second frequency band is the frequency band involved in the IMMW standard, examples 6-8 below can also be referred to as IMMW high-low frequency cooperation non-TB sensing measurement interaction, or IMMW non-TB sensing measurement interaction, or IMMW high-low frequency mixed non-TB sensing measurement interaction.

[0470] Example six,

[0471] FIG. 11 is a flow diagram of a non-TB sensing measurement interaction according to an embodiment of the present application. Other descriptions of the stages shown in FIG. 11 can be found in FIG. 10, and will not be described here. As shown in FIG. 11, the flow of the non-TB sensing measurement interaction can include:

[0472] (1F) The sensing initiator transmits the NDPA frame in the first frequency band, and correspondingly, the sensing responder receives the NDPA frame in the first frequency band.

[0473] The transmission manner of the NDPA frame can refer to the above manner 2, or (1A) and the like, which will not be described here again. For example, the address of the NDPA frame can be the address of the sensing responder.

[0474] In the embodiment of the present application, transmitting the NDPA frame in the low frequency band can make the NDPA frame not easily affected by the shielding, improve the reliability of the transmission of the NDPA frame, and thus be more conducive to scheduling the sensing responder and improving the robustness of the report of the sensing responder.

[0475] (2F) The sensing initiator transmits the first PPDU for sensing in the second frequency band, and correspondingly, the sensing responder receives the second PPDU in the second frequency band. The sensing responder transmits the second PPDU for sensing in the second frequency band, and correspondingly, the sensing initiator receives the second PPDU in the second frequency band.

[0476] The step of transmitting the first PPDU by the sensing initiator can be optional. The step of transmitting the second PPDU by the sensing responder can be optional.

[0477] For example, the sensing initiator can directionally transmit the first PPDU in the second frequency band. For example, the sensing initiator can directionally transmit the first PPDU to multiple different directions. The sensing responder can directionally transmit the second PPDU in the second frequency band. For example, the sensing responder can directionally transmit the second PPDU to multiple different directions. The transmission manner of the first PPDU can refer to the above manner 7 or (2A) and the like, and the transmission manner of the second PPDU can refer to the above manner 8 or (3A) and the like, which will not be described here again.

[0478] After the sensing initiator transmits the NDPA frame in the low frequency band, the sensing initiator can switch to the high frequency, perform channel contention in the high frequency to obtain a TXOP, and transmit the first PPDU or receive the second PPDU in the TXOP or in a predetermined SP.

[0479] (3F) The sensing responder transmits a sensing measurement report frame (for example, the report shown in FIG. 11) in the first frequency band, and correspondingly, the sensing initiator receives the sensing measurement report frame in the first frequency band.

[0480] The transmission manner of the sensing measurement report frame can refer to the above manner 2 or (4A) and the like, which will not be described here again. For example, the receiving address of the sensing measurement report frame can be the address of the sensing initiator.

[0481] The sensing response end can switch to the low frequency after receiving the first PPDU or after sending the second PPDU, perform channel contention on the low frequency to obtain a TXOP, and send the report frame in the TXOP or in a predetermined SP.

[0482] In the embodiments of the present application, the first PPDU and the second PPDU can belong to the same TXOP or SP.

[0483] In the embodiments of the present application, the first PPDU and the second PPDU are transmitted on the high frequency, and the control frames other than the first PPDU and the second PPDU are transmitted on the low frequency, so that the stability and the anti-blocking of the control frame transmission can be effectively ensured, the transmission reliability of the control frame is improved, the smooth progress of the sensing measurement is ensured, the sensing performance is improved by using the large bandwidth on the high frequency for measurement.

[0484] Example seven,

[0485] FIG. 12 is another flow diagram of the non-TB sensing measurement interaction provided by the embodiments of the present application. The other descriptions of the stages shown in FIG. 12 can be referred to FIG. 10, and will not be described here. As shown in FIG. 12, the flow of the non-TB sensing measurement interaction can include:

[0486] (1G): The sensing initiation end sends an NDPA frame on the first frequency band, and correspondingly, the sensing response end receives the NDPA frame on the first frequency band.

[0487] The description of (1G) can be referred to (1F) and the like above, and will not be described here.

[0488] (2G): The sensing initiation end sends a first PPDU for sensing on the second frequency band, and correspondingly, the sensing response end receives the second PPDU on the second frequency band. The sensing response end sends a second PPDU for sensing on the second frequency band, and correspondingly, the sensing initiation end receives the second PPDU on the second frequency band.

[0489] The description of (2G) can be referred to (2F) and the like above, and will not be described here.

[0490] (3G): The sensing response end sends a sensing measurement report frame on the second frequency band, and correspondingly, the sensing initiation end receives the sensing measurement report frame on the second frequency band.

[0491] For example, the address of the sensing measurement report frame can be the sensing initiation end. For example, the sensing response end can directionally send the sensing measurement report frame to the sensing initiation end on the high frequency.

[0492] In the embodiments of the present application, other frames except the NDPA frame are transmitted on the high frequency, which can effectively reduce the number of channel switching, reduce the complexity of channel access, effectively ensure the efficiency of the sensing measurement, and reduce the complexity of the sensing measurement. Meanwhile, the large bandwidth on the high frequency is used for measurement, which improves the sensing performance.

[0493] Example eight,

[0494] FIG. 13 is another flow diagram of the non-TB sensing measurement interaction provided by the embodiments of the present application. For other descriptions of the stages shown in FIG. 13, reference can be made to FIG. 10, which will not be repeated hereinafter. As shown in FIG. 13, the flow of the non-TB sensing measurement interaction can include:

[0495] (1H): The sensing initiator transmits the NDPA frame on the second frequency band, and correspondingly, the sensing responder receives the NDPA frame on the second frequency band.

[0496] For example, the address of the NDPA frame can be the sensing responder. For example, the sensing initiator can directionally transmit the NDPA frame to the sensing responder on the high frequency.

[0497] (2H): The sensing initiator transmits the first PPDU for sensing on the second frequency band, and correspondingly, the sensing responder receives the second PPDU on the second frequency band. The sensing responder transmits the second PPDU for sensing on the second frequency band, and correspondingly, the sensing initiator receives the second PPDU on the second frequency band.

[0498] For descriptions of (2H), reference can be made to (2F) and the like above, which will not be repeated hereinafter.

[0499] (3H): The sensing responder transmits the sensing measurement report frame on the second frequency band, and correspondingly, the sensing initiator receives the sensing measurement report frame on the second frequency band.

[0500] For descriptions of (3H), reference can be made to (3G) and the like above, which will not be repeated hereinafter.

[0501] For example, the above NDPA frame, the first PPDU, the second PPDU, and the sensing measurement report frame can belong to the same TXOP or SP.

[0502] In the embodiments of the present application, all frames in the non-TB sensing measurement interaction are transmitted on the high frequency, without channel switching, reducing the complexity of channel access, effectively ensuring the efficiency of the sensing measurement, and reducing the complexity of the sensing measurement. Meanwhile, the large bandwidth on the high frequency is used for measurement, which improves the sensing performance.

[0503] As shown in the TB-aware measurement interaction above, one TB-aware measurement interaction can include at least one or more of the following stages: a polling stage, an NDPA sounding stage, a TF sounding stage, and a reporting stage. In one possible implementation, the TB-aware measurement interaction is modified by embodiments of the present application, as shown below:

[0504] Example Nine,

[0505] FIGS. 14a-14c are flow diagrams of the TB-aware measurement interaction according to embodiments of the present application. As shown in FIGS. 14a-14c, the flow of the TB-aware measurement interaction can include the following stages:

[0506] (1I): The TB-aware initiator transmits a polling frame in the first frequency band, and the TB-aware responder receives the polling frame in the first frequency band. The TB-aware responder replies with a CTS-to-self frame in the first frequency band to confirm its participation in the TB-aware measurement interaction.

[0507] The description of (1I) can refer to (1A) and the like, which will not be repeated here.

[0508] (2I): The TB-aware initiator transmits an NDPA frame in the first frequency band, and the TB-aware responder receives the NDPA frame in the first frequency band.

[0509] The description of the transmission mode of the NDPA frame in (2I) can refer to (2A) and the like, which will not be repeated here.

[0510] (3I): (a) The TB-aware initiator transmits a first PPDU in the second frequency band, and the TB-aware responder receives the first PPDU in the second frequency band. (b) The TB-aware responder transmits a second PPDU in the second frequency band, and the TB-aware initiator receives the second PPDU in the second frequency band.

[0511] The above step (a) is optional, and step (b) is optional.

[0512] The NDPA frame in the embodiment of the present application can achieve at least one of the following: to realize the function of the NDPA frame in the above-mentioned TB perception measurement interaction, and to realize the function of the detection trigger frame in the above-mentioned TB perception measurement interaction. That is, the NDPA frame in the embodiment of the present application can achieve at least one of the following: to schedule the perception initiator to send the perception PPDU, or to schedule the perception responder to send the perception PPDU. That is, the NDPA frame can be used to achieve at least one of the following: to configure the perception initiator to send the perception PPDU information to the perception responder, or to configure the perception responder to send the perception PPDU information to the perception initiator. In other words, the NDPA frame can be used to complete the configuration of SI2SR NDP, or at least one of the configurations of SR2SI NDP. The embodiment of the present application does not limit the transmission order of the above-mentioned first PPDU and the second PPDU.

[0513] As an example, as shown in Figure 14a, the NDPA frame can be used to indicate information about both the first PPDU and the second PPDU. In this case, step (3I) may include steps (a) and (b). For information about the first PPDU or the second PPDU, refer to the description of the perception measurement information above and will not be described in detail here.

[0514] As another example, as shown in Figure 14b, the NDPA frame may be used to configure the first PPDU. In this case, step (3I) may include step (a).

[0515] As another example, as shown in Figure 14c, an NDPA frame can be used to configure the second PPDU. In this case, step (3I) can include step (b). Figure 14c illustrates an example in which there is no reporting phase. For example, the sensing responder reports the sensing results through an upper layer (e.g., a protocol layer other than the MAC layer and the PHY layer).

[0516] As a possible implementation manner, multiple perception responders may send the second PPDU in the form of MUs.

[0517] Exemplarily, the NDPA frame may be used to indicate information of the second PPDU, which may include at least one of spatial stream (SS) information or transmit power information allocated (or indicated) by the sensing initiator to each sensing responder.

[0518] For example, the NDPA frame can comprise a STA info field, which can comprise spatial stream information allocated for the responding STA identified by the field. For example, the STA info field can comprise an SS allocation / random access resource unit (RU-RA) information field, which can be used to carry the spatial stream information. The spatial stream information can comprise information such as the number of spatial streams or the identification of the spatial streams.

[0519] For another example, the NDPA frame can comprise a STA info field, which can comprise an uplink (UL) target receive power field, which can be used to carry the transmit power information. Alternatively, the UL target receive power field can be used to indicate, for the responding STA identified by the STA info field, the receive power expected by the initiating STA when the responding STA transmits the second PPDU (or the power of the second PPDU expected to be received).

[0520] The associated ID (AID) of the STA info field can be less than 2008. The name or the number of bits occupied by the SS allocation / RU-RA information field or the UL target receive power field is not limited in the embodiments of the present application. The number of bits occupied by the two fields can be flexibly adjusted, and the number of bits occupied by the fields is not limited in the embodiments of the present application. The usage of the two fields can refer to relevant standards or protocols, and the embodiments of the present application will not be further described.

[0521] As another possible implementation, the multiple responding STAs can also transmit the second PPDU in the form of SU.

[0522] For example, the NDPA frame can be used to indicate information of the second PPDU. The information can comprise at least one of the spatial stream information allocated by the initiating STA for each responding STA or the number of LTF repetitions.

[0523] For example, the NDPA frame can comprise a STA info field, which can comprise at least one of an SR2SI NSTS field or an SR2SI Rep field. The SR2SI NSTS field can be used to indicate the number of spatial streams used by the responding STA when transmitting the second PPDU, and the SR2SI Rep field can be used to indicate the number of LTF repetitions used by the responding STA when transmitting the second PPDU.

[0524] The AID of the STA information field described above can be less than 2008. The name or the number of bits occupied of the SR2SI NSTS field or the SR2SI Rep field is not limited in the embodiments of the present application. The number of bits occupied of the above two fields can be flexibly adjusted. The usage idea and method of the two fields can be referred to the related standards or protocols, and the embodiments of the present application will not be further described.

[0525] As to the transmission mode of the first PPDU and the transmission mode of the second PPDU, reference can be made to the above (such as 2A or 2B, etc.), which will not be described herein again.

[0526] In a possible implementation, when the direction from the sensing initiator to the sensing responder is not measured (or in other words, the SI2SR direction sensing is not performed), that is, step (3I) does not include (a), the field (or configuration field) for configuring the sensing PPDU can be set to 0. For example, the SI2SR NSTS field can be set to 0. For another example, the SI2SR Rep field can be set to 0. Similarly, when the direction from the sensing responder to the sensing initiator is not measured (or in other words, the SR2SI direction sensing is not performed), that is, step (3I) does not include (b), the field (or configuration field) for configuring the sensing PPDU can be set to 0. For example, the SR2SI NSTS field can be set to 0. For another example, the SR2SI Rep field can be set to 0. The related description of not performing measurement can be referred to the description of the special NDP described above, which will not be described in detail herein.

[0527] In a possible implementation, the NDPA frame can include a field, which can be used to indicate the mode of the measurement stage, or in other words, to indicate whether step (3I) includes step (a), or step (b), or both step (a) and step (b). The name of the field can be a sounding mode field or a mode indication field, and the specific name of the field is not limited in the embodiments of the present application. The number of bits occupied of the field is not limited in the embodiments of the present application.

[0528] For example, the field being 0 can be used to indicate that the SI2SR sensing is performed (that is, step (a) is included), that is, the sensing initiator can indicate the sensing responder through the field, and the sensing initiator sends the first PPDU. For example, the field being 1 can be used to indicate that the SR2SI sensing is performed (that is, step (b) is included), that is, the sensing initiator can indicate the sensing responder through the field, and the sensing responder sends the second PPDU. For example, the field being 2 can be used to indicate that the SI2SR sensing and the SR2SI sensing are performed (that is, both step (a) and step (b) are included).

[0529] The relationship between the values and the meanings of the fields shown above is only an example and should not be understood as a limitation of the embodiments of the present application.

[0530] (4I): The sensing initiator sends a report trigger frame in the first frequency band, and correspondingly, the sensing responder receives the report trigger frame in the first frequency band. The sensing responder sends a sensing measurement report frame in the first frequency band, and correspondingly, the sensing initiator receives the sensing measurement report frame in the first frequency band.

[0531] The description of (4I) can refer to (4A) and the like described above, and will not be repeated here.

[0532] In the embodiments of the present application, the NDPA frame can be used to complete the functions of the sensing NDPA frame and the probe trigger frame in the above-mentioned examples one to five, and the functions of the above-mentioned two frames are completed by one NDPA frame, thereby simplifying the process and saving the overhead of the probe trigger frame.

[0533] The following introduces some other devices in the sensing communication method related to the embodiments of the present application.

[0534] Sensing by proxy (SBP) initiator: a device that initiates an SBP process, or a device that initiates an SBP request frame. Generally, the SBP initiator can be a STA. The SBP initiator can send an SBP request frame in a low frequency, or send an SBP request frame in a high frequency.

[0535] SBP responder: a device that responds to an SBP process, or a device that receives an SBP request frame and replies with an SBP response frame. Generally, the SBP responder can be an AP. The SBP responder can send an SBP response frame in a low frequency, or send an SBP response frame in a high frequency. The SBP responder can initiate a sensing measurement request frame as a sensing initiator.

[0536] FIG. 15 is a schematic diagram of an SBP process provided by the embodiments of the present application. As shown in FIG. 15, STA1 sends an SBP request frame to an AP as an SBP initiator. After receiving the SBP request frame (referred to as SBP request in FIG. 15 for short), the AP as an SBP responder performs sensing establishment with a corresponding sensing responder according to the parameters carried in the SBP request frame, completes measurement and feedback. After receiving the SBP request frame, the AP replies with an SBP response frame (referred to as SBP response in FIG. 15 for short), and the AP can initiate a sensing measurement session as a sensing initiator, such as sending sensing measurement request frames to STA1 and STA2. The sensing measurement interaction initiated by the above-mentioned AP as a sensing initiator is generally a TB sensing measurement interaction. The description of the TB sensing measurement interaction can refer to FIGS. 5-9 above, and will not be described in detail here.

[0537] In FIG. 15, STA1 can initiate SBP request as SBP initiator, and can participate in the sensing measurement session as sensing responder. However, in a specific implementation, STA1 can initiate SBP request as SBP initiator, but does not participate in the sensing measurement session initiated by SBP responder (i.e., STA1 can not be a sensing responder).

[0538] For example, the SBP procedure can further include a feedback phase (not shown in FIG. 15) and a close phase (not shown in FIG. 15). For example, in the feedback phase of the SBP, the AP as the SBP responder can collect the SBP sensing measurement result, and then report the SBP sensing measurement report to the SBP initiator (e.g., STA1) through the SBP report frame. Alternatively, the SBP responder can not send the SBP report frame, but report the SBP sensing measurement report through the upper layer. The description of the SBP sensing measurement result is also applicable below. In the SBP close phase (not shown in FIG. 15), the SBP initiator can close the established SBP procedure. The close phase shown in the embodiments of the present application can also be referred to as a termination phase, and the specific name of each phase is not limited in the present application.

[0539] The sensing measurement request sent by the AP to STA1 or STA2 in FIG. 15 is only an example, and should not be understood as a limitation on the embodiments of the present application. The order between the SBP responder and the sensing measurement request in FIG. 15 is not limited in the embodiments of the present application. The description of the sensing measurement request and the sensing measurement response in FIG. 15 can be referred to the above, and will not be described in detail here.

[0540] The following description is provided for the SBP initiator:

[0541] A. The SBP initiator participates in the sensing measurement as a sensing responder, and the behavior of the SBP initiator in the sensing measurement interaction can refer to the behavior of the sensing responder in the TB sensing measurement interaction shown in the above, and will not be described here.

[0542] For example, the SBP responder as the sensing initiator can report the SBP sensing measurement report to the SBP initiator after obtaining the sensing measurement result. Alternatively, after the last stage of the sensing measurement interaction is completed, the SBP initiator can receive the SBP report frame (or simply referred to as the SBP report) from the SBP responder (i.e., the sensing initiator).

[0543] B. The SBP initiator does not participate in the sensing measurement as a sensing responder, i.e., the SBP initiator does not participate in the sensing measurement initiated by the SBP responder (i.e., the sensing initiator), and the SBP initiator does not participate in any stage of the sensing measurement interaction, but can receive the SBP report frame from the SBP responder.

[0544] C. When the SBP initiator is an unassociated STA (USTA), the SBP initiator is polled by the perception initiator in the polling phase of the perception measurement interaction. As an example, when the SBP initiator participates in a perception measurement session initiated by a SBP responder as a perception responder, the SBP initiator can be polled by the perception initiator to confirm whether the SBP initiator can participate in the perception measurement session or whether the SBP initiator can receive the SBP report frame. When the SBP initiator confirms to participate in the perception measurement interaction, the behavior of the SBP initiator in the perception measurement interaction can refer to the behavior of the perception responder in the TB perception measurement interaction shown in the above, which will not be described herein. As another example, when the SBP initiator does not participate in the perception measurement session initiated by the SBP initiator, i.e., the SBP initiator is not a perception responder, the SBP initiator can be polled by the perception initiator to confirm whether the SBP initiator can receive the SBP report frame.

[0545] In the embodiments of the present application, the perception initiator can poll the SBP initiator regardless of whether the SBP initiator is a perception responder.

[0546] D. When the SBP initiator is an associated STA, the SBP initiator can be polled by the perception initiator in the polling phase of the perception measurement interaction, or the SBP initiator can not be polled by the perception initiator in the polling phase of the perception measurement interaction.

[0547] In combination with the above FIG. 5 to FIG. 9, the embodiments of the present application provide various schematic diagrams of the SBP procedure.

[0548] FIG. 16a and FIG. 16b are a schematic diagram of the SBP procedure provided by the embodiments of the present application in combination with the perception measurement interaction shown in FIG. 5.

[0549] As shown in FIG. 16a, the frame in the reporting phase of the perception measurement interaction is transmitted in the first frequency band, and at the same time, the perception initiator can also send the SBP report frame in the first frequency band. Thus, the complexity of obtaining the TXOP through channel contention can be effectively reduced, and the complexity of channel switching can be reduced. In FIG. 16a, the CTS-to-self frame replied by the SBP initiator can be used to indicate that the SBP initiator can receive the SBP report frame. The CTS-to-self frame replied by the two perception responders can be used to indicate that the corresponding perception responder (i.e., the perception responder sending the CTS-to-self frame) can participate in the perception measurement session.

[0550] For example, the frame in the reporting phase and the SBP report frame can be transmitted in the same frequency point (or frequency band, such as the same channel or the same link). For example, the frame in the reporting phase and the SBP report frame can be in the same TXOP or SP.

[0551] The description of FIG. 16a and FIG. 16b can refer to FIG. 5 or FIG. 15, and the like, and will not be repeated here.

[0552] FIG. 17a and FIG. 17b are another SBP flow diagram provided by the sensing measurement interaction shown in FIG. 6 according to an embodiment of the present application. The description of FIG. 17a and FIG. 17b can refer to FIG. 6 or FIG. 15 or FIG. 16a or FIG. 16b, and the like, and will not be repeated here.

[0553] FIG. 18a and FIG. 18b are still another SBP flow diagram provided by the sensing measurement interaction shown in FIG. 7 according to an embodiment of the present application. As shown in FIG. 18b, the frame in the reporting stage and the SBP reporting frame are both transmitted in the first frequency band, which can effectively reduce the complexity of obtaining TXOP through channel competition and reduce the complexity of channel switching.

[0554] For example, the frame in the reporting stage and the SBP reporting frame can be in the same TXOP or SP. In other words, the frame in the reporting stage and the SBP reporting frame can be transmitted in the same frequency point.

[0555] FIG. 19a and FIG. 19b are still another SBP flow diagram provided by the sensing measurement interaction shown in FIG. 8 according to an embodiment of the present application. The description of FIG. 19a and FIG. 19b can refer to FIG. 8 or FIG. 15 or FIG. 16a to FIG. 18b, and the like, and will not be repeated here.

[0556] FIG. 20a and FIG. 20b are still another SBP flow diagram provided by the sensing measurement interaction shown in FIG. 9 according to an embodiment of the present application. The description of FIG. 20a and FIG. 20b can refer to FIG. 8 or FIG. 15 or FIG. 16a to FIG. 19b, and the like, and will not be repeated here.

[0557] In the embodiments of the present application, the SBP flow shown in FIG. 16a to FIG. 20b can flexibly realize high-low frequency sensing, and improve sensing efficiency and sensing performance.

[0558] The ranging communication method and device shown in the present application will be described in detail below.

[0559] Ranging initiator: A device that initiates ranging behavior; or, a device that initiates a fine timing measurement session (FTM session); or, a device that sends an initial fine timing measurement request (IFTMMR) frame. For example, the ranging initiator can send IFTMR frames at a low frequency or at a high frequency. The above-mentioned fine timing measurement session can also be called a ranging measurement session, and the IFTMR frame can also be called a ranging measurement request frame. The ranging initiator can also be a ranging transmitter or a ranging receiver.

[0560] Ranging responder: A device that responds to the ranging behavior initiated by the ranging initiator and participates in the ranging. For example, the ranging responder can receive IFTMR frames and reply with initial fine timing measurement (IFTM) frames. For example, the ranging responder can reply with IFTM frames at a low frequency or at a high frequency. For example, for a triggered FTM (TB FTM) interaction (or TB ranging measurement interaction), the ranging initiator can be an STA and the ranging responder can be an AP. For example, for a non-triggered FTM (non-TB FTM) interaction (or non-TB ranging measurement interaction), the ranging initiator can be an STA and the ranging responder can be an AP. The embodiments of this application do not limit the specific product form of the initiator or responder of a TB FTM session or a non-TB FTM session. The ranging responder can be a ranging transmitter or a ranging receiver.

[0561] Ranging transmitter: A device that sends a ranging PPDU. For example, a ranging transmitter can send a ranging PPDU at a low frequency or at a high frequency.

[0562] Ranging receiver: A device that receives ranging PPDUs. For example, a ranging receiver can receive ranging PPDUs at a low frequency or a high frequency.

[0563] The ranging PPDU shown in the embodiments of the present application is a PPDU used for ranging. For the format of this PPDU, please refer to Figures 2a to 2d above. This embodiment of the present application does not limit the specific format of the ranging PPDU. The format of the ranging PPDU can be the same as the format of the sensing PPDU, or the content of some fields may differ, etc. This embodiment of the present application does not limit this.

[0564] The following detailed description describes ranging measurement interaction procedures in a ranging measurement session.

[0565] One ranging measurement interaction can include at least one of the following four stages: a polling stage, a TF sounding stage, a NDPA sounding stage, or a reporting stage. The type of control frame in each stage of the ranging measurement interaction can be ranging, and the type of control frame in each stage of the sensing measurement interaction can be sensing. Whether other information is the same or not is not limited by embodiments of the present application. The transmission mode of each control frame or ranging PPDU is described below with reference to the description above in the sensing measurement interaction, and is not described again below.

[0566] The ranging communication method shown in the present application is described below through different examples. When the second frequency band is the frequency band involved in the IMMW standard, examples ten to fourteen below can also be referred to as IMMW high-low frequency cooperative TB ranging measurement interaction, or IMMW TB ranging measurement interaction, or IMMW high-low frequency hybrid TB ranging measurement interaction, or high-low frequency hybrid IMMW TB ranging measurement interaction. For ease of description, the sensing communication method shown in the present application is described below by taking two sensing response ends as examples when a specific example is involved, but the number of sensing response ends should not be considered as a limitation of the present application.

[0567] Example ten,

[0568] FIG. 21 is a flow diagram of a TB ranging measurement interaction according to an embodiment of the present application. As shown in FIG. 21, the flow of the TB ranging measurement interaction can include:

[0569] (1J) Polling stage: the ranging response end sends a polling frame in the first frequency band, and the corresponding ranging initiator receives the polling frame in the first frequency band. The ranging initiator participating in the interaction sends a CTS-to-self frame in the first frequency band to confirm its participation in the ranging measurement interaction.

[0570] The description of (1J) can be referred to the description of (1A) above, and is not described again here.

[0571] (2J) TF sounding stage: the ranging response end sends a sounding trigger frame in the first frequency band, and the corresponding ranging initiator receives the sounding trigger frame in the first frequency band. The ranging initiator sends a second PPDU for ranging in the second frequency band, and the corresponding ranging response end receives the second PPDU in the second frequency band.

[0572] In the case that the ranging measurement interaction in which the TF sounding phase is located includes a polling phase as shown in (1J), the polling frame, the CTS-to-self frame and the sounding trigger frame can be located in the same TXOP in the low frequency, so as to effectively reduce the number of competing channels and improve the ranging efficiency. Alternatively, the above-mentioned polling frame, CTS-to-self frame and sounding trigger frame can be located in the same target wake time (TWT) window or in the allocated SP.

[0573] After sending the sounding trigger frame at the ranging response end, the second frequency band can be switched to, the channel is competed for on the second frequency band, the TXOP is obtained, and the second PPDU is sent in the TXOP. Alternatively, the ranging response end can also send the second PPDU on the high frequency in the allocated SP. Alternatively, the ranging response end can also send the second PPDU in a TWT window.

[0574] As an example, the ranging response end can trigger the ranging initiator to send the second PPDU at different time points respectively, that is, the ranging response end can send the sounding trigger frame to the ranging initiator at different time points respectively.

[0575] As another example, the ranging response end can trigger different ranging initiators to send the second PPDU in the form of MU.

[0576] As to the transmission mode of the second PPDU, reference can be made to the above, and details are not described herein.

[0577] The above-mentioned sounding trigger frame can also be referred to as a sounding ranging trigger frame, the polling frame can also be referred to as a poll ranging trigger or a TF ranging poll frame, and the like, and the name of each frame is not limited in the embodiments of the present application.

[0578] (3J) NDPA sounding phase: the ranging response end sends an NDPA frame in the first frequency band, and correspondingly, the ranging initiator receives the NDPA frame in the first frequency band. The ranging response end sends a first PPDU for ranging in the second frequency band, and correspondingly, the ranging initiator receives the second PPDU in the second frequency band.

[0579] The description of (3J) can refer to the above (2A) and the like, and details are not described herein.

[0580] (4J) reporting phase: the ranging response end sends a report frame in the first frequency band, and correspondingly, the ranging initiator receives the report frame.

[0581] The report frame sent by the ranging response end can also be referred to as a ranging response end to ranging initiation end report, or an initiating station to responding station location measurement report (ISTA to RSTA LMR).

[0582] When the ranging response end also needs the ranging measurement result, the ranging response end can send a report trigger frame in the first frequency band, and correspondingly, the ranging initiation end receives the report trigger frame in the first frequency band. The ranging initiation end sends a report frame in the first frequency band, and correspondingly, the ranging response end receives the report frame in the first frequency band. The step of triggering the ranging initiation end to report by the ranging response end is an optional stage. In the establishment stage of the ranging measurement session, if the ranging initiation end and the ranging response end do not negotiate this step, this stage will not appear, that is, the step of triggering the ranging initiation end to report by the ranging response end can not appear.

[0583] The report trigger frame can also be referred to as a (TF ranging LMR), and the report frame sent by the ranging initiation end can also be referred to as an initiating station to responding station location measurement report (ISTA to RSTA LMR).

[0584] The description of (4J) can refer to (4A) and the like, which will not be described here in detail.

[0585] FIG. 22 is another flow diagram of the TB ranging measurement interaction provided by the embodiments of the present application. The description of FIG. 22 can refer to the description of FIG. 6 or FIG. 21 and the like, which will not be described here in detail.

[0586] The transmission mode of the probe trigger frame can refer to the description of the probe trigger frame in the sensing measurement interaction, which will not be described here in detail.

[0587] FIG. 23 is another flow diagram of the TB ranging measurement interaction provided by the embodiments of the present application. The description of FIG. 23 can refer to the description of FIG. 7 or FIG. 21 and the like, which will not be described here in detail.

[0588] The transmission mode of the report frame and the report trigger frame can refer to the description of the report frame and the report trigger frame in the sensing measurement interaction, which will not be described here in detail.

[0589] FIG. 24 is another flow diagram of the TB ranging measurement interaction provided by the embodiments of the present application. The description of FIG. 24 can refer to the description of FIG. 8 or FIG. 21 and the like, which will not be described here in detail.

[0590] The description of the NDPA frame can refer to the description of the NDPA frame in the sensing measurement interaction, which will not be described here in detail.

[0591] FIG. 25 is another flow diagram of the TB ranging measurement interaction according to an embodiment of the present application. The description of FIG. 25 can refer to the description of FIG. 9 or FIG. 21, and the like, and will not be repeated here.

[0592] FIG. 26 is a flow diagram of the non-TB ranging measurement interaction according to an embodiment of the present application. The description of FIG. 26 can refer to the description of FIG. 10 or FIG. 21, and the like, and will not be repeated here.

[0593] FIG. 27 is a flow diagram of the non-TB ranging measurement interaction according to an embodiment of the present application. The description of FIG. 27 can refer to the description of FIG. 11 or FIG. 21, and the like, and will not be repeated here.

[0594] FIG. 28 is another flow diagram of the non-TB ranging measurement interaction according to an embodiment of the present application. The description of FIG. 28 can refer to the description of FIG. 12 or FIG. 21, and the like, and will not be repeated here.

[0595] FIG. 29 is another flow diagram of the non-TB ranging measurement interaction according to an embodiment of the present application. The description of FIG. 29 can refer to the description of FIG. 13 or FIG. 21, and the like, and will not be repeated here.

[0596] In the above embodiments, the implementation of which is not described in detail in one of the embodiments can refer to other embodiments.

[0597] The communication device according to the embodiments of the present application will be described below.

[0598] The communication device according to the embodiments of the present application will be described below.

[0599] The communication device according to the embodiments of the present application will be described below.

[0600] FIG. 30 is a structural diagram of the communication device according to an embodiment of the present application. As shown in FIG. 30, the communication device includes a processing module 3001 and a transceiver module 3002. The transceiver module 3002 can implement corresponding communication functions, and the processing module 3001 is configured to implement corresponding processing functions. The transceiver module 3002 can also be referred to as an interface module, a communication interface, a communication module, an input / output interface, and the like.

[0601] In some embodiments of the application, the communication device can be configured to perform the actions performed by the sensing initiator in the above method embodiments. The sensing initiator can be the sensing device itself or a chip or functional module configured in the device, etc. The transceiver module 3002 can be configured to perform the operations related to transceiving or the operations related to input and output of the sensing initiator in the above method embodiments. The processing module 3001 can be configured to perform the operations related to processing of the sensing initiator in the above method embodiments.

[0602] The transceiver module 3002 can be configured to send or output the sensing measurement request frame and receive or input the sensing measurement response frame. The processing module 3001 can be configured to generate the sensing measurement request frame and parse the sensing measurement response frame, etc.

[0603] As an example, the transceiver module 3002 can be configured to send the sensing measurement request frame, e.g., to the sensing responder. The transceiver module 3002 can include a radio frequency module, an antenna module, etc.

[0604] As another example, the transceiver module 3002 can be configured to output the sensing measurement request frame. The transceiver module 3002 can include an input and output module, etc.

[0605] The transceiver module 3002 can also be configured to send or output the polling frame and receive or input the CTS-to-self frame. The processing module 3001 can be configured to generate the polling frame and parse the CTS-to-self frame.

[0606] The transceiver module 3002 can also be configured to send or output the sensing NDPA frame. The processing module 3001 can be configured to generate the sensing NDPA frame.

[0607] The transceiver module 3002 can also be configured to send or output the sensing probe trigger frame. The processing module 3001 can be configured to generate the sensing probe trigger frame.

[0608] The transceiver module 3002 can also be configured to send or output the sensing PPDU or receive or input the sensing PPDU.

[0609] The transceiver module 3002 can also be configured to send or output the report trigger frame and receive or input the report frame. The processing module 3001 can be configured to generate the report trigger frame and parse the report frame.

[0610] The specific description of the sensing initiator can also refer to the above method embodiments, which will not be listed one by one here.

[0611] Figure 30, in some embodiments of the application, the communication apparatus can be used to perform the actions performed by the sensing response end in the method embodiments above, which can be the sensing device itself, or a chip or function module arranged in the device, etc. The transceiver module 3002 can be configured to receive or input the sensing measurement request frame, and transmit or output the sensing measurement response frame. The processing module 3001 can be configured to parse the sensing measurement request frame, and generate the sensing measurement response frame, etc.

[0612] The transceiver module 3002 can be configured to receive or input the sensing measurement request frame, and transmit or output the sensing measurement response frame. The processing module 3001 can be configured to parse the sensing measurement request frame, and generate the sensing measurement response frame, etc.

[0613] As an example, the transceiver module 3002 can be configured to receive the sensing measurement request frame from the sensing initiation end. The transceiver module 3002 can include a radio frequency module, an antenna module, etc.

[0614] As another example, the transceiver module 3002 can be configured to input the sensing measurement request frame. After the sensing measurement request frame is processed by the antenna, the radio frequency module, etc., the transceiver module 3002 inputs the sensing measurement request frame, so that the processing module 3001 parses the sensing measurement request frame. The transceiver module 3002 can include an input / output module, etc.

[0615] The transceiver module 3002 can also be configured to receive or input the polling frame, and transmit or output the CTS-to-self frame. The processing module 3001 can be configured to parse the polling frame, and generate the CTS-to-self frame.

[0616] The transceiver module 3002 can also be configured to receive or input the sensing NDPA frame. The processing module 3001 can be configured to parse the sensing NDPA frame, and determine whether it needs to receive the sensing PPDU based on the sensing NDPA frame.

[0617] The transceiver module 3002 can also be configured to receive or input the sensing probe trigger frame. The processing module 3001 can be configured to parse the sensing probe trigger frame, and determine the measurement resource for transmitting the sensing PPDU based on the sensing probe trigger frame.

[0618] The transceiver module 3002 can also be configured to receive or input the sensing PPDU, or transmit or output the sensing PPDU.

[0619] The transceiver module 3002 can also be configured to receive or input the report trigger frame, and transmit or output the report frame. The processing module 3001 can be configured to parse the report trigger frame, and generate the report frame.

[0620] Figure 30, in some embodiments of the application, the communication apparatus can be configured to execute the actions performed by the ranging initiator in the method embodiments. The ranging initiator can be the ranging device itself or a chip or functional module configured in the device. The transceiver module 3002 can be configured to perform the operations related to transceiving or inputting and outputting of the ranging initiator in the method embodiments. The processing module 3001 can be configured to perform the operations related to processing of the ranging initiator in the method embodiments. Here, the TB ranging measurement interaction is taken as an example.

[0621] The transceiver module 3002 can be configured to send or output the ranging measurement request frame and receive or input the ranging measurement response frame. The processing module 3001 can be configured to generate the ranging measurement request frame and parse the ranging measurement response frame, etc.

[0622] As an example, the transceiver module 3002 can be configured to send the ranging measurement request frame, such as sending the ranging measurement request frame to the ranging responder. The transceiver module 3002 can include a radio frequency module, an antenna module, etc.

[0623] As another example, the transceiver module 3002 can be configured to output the ranging measurement request frame. The transceiver module 3002 can include an input and output module, etc.

[0624] The transceiver module 3002 can also be configured to receive or input the poll frame and send or output the CTS-to-self frame. The processing module 3001 can be configured to parse the poll frame and generate the CTS-to-self frame.

[0625] The transceiver module 3002 can also be configured to receive or input the ranging NDPA frame. The processing module 3001 can be configured to parse the ranging NDPA frame.

[0626] The transceiver module 3002 can also be configured to receive or input the ranging probe trigger frame. The processing module 3001 can be configured to parse the ranging probe trigger frame.

[0627] The transceiver module 3002 can also be configured to send or output the ranging PPDU; or, configured to receive or input the ranging PPDU.

[0628] The transceiver module 3002 can also be configured to receive or input the report frame. The processing module 3001 can be configured to parse the report frame.

[0629] The transceiver module 3002 can also be configured to send or output the report frame. The processing module 3001 can be configured to generate the report frame.

[0630] The above is described by taking the TB ranging measurement interaction as an example. For the non-TB ranging measurement interaction:

[0631] The transceiver module 3002 can be configured to transmit or output the ranging NDPA frame. The processing module 3001 can be configured to generate the ranging NDPA frame.

[0632] The transceiver module 3002 can also be configured to transmit or output the ranging PPDU, or receive or input the ranging PPDU.

[0633] The transceiver module 3002 can also be configured to receive or input the report frame. The processing module 3001 can be configured to parse the report frame.

[0634] The transceiver module 3002 can also be configured to transmit or output the report frame. The processing module 3001 can be configured to generate the report frame.

[0635] The specific description of the ranging initiator can also refer to the method embodiments shown in the above, which will not be listed one by one here.

[0636] Referring to FIG. 30, in some embodiments of the present application, the communication apparatus can be configured to perform the actions performed by the ranging responder in the above method embodiments. The communication apparatus can be the ranging device itself or a chip or a functional module configured in the device. The transceiver module 3002 is configured to perform the transceiving related operations or the input / output related operations of the ranging responder in the above method embodiments. The processing module 3001 is configured to perform the processing related operations of the ranging responder in the above method embodiments.

[0637] The transceiver module 3002 can be configured to receive or input the ranging measurement request frame, and transmit or output the ranging measurement response frame. For example, the processing module 3001 can be configured to parse the ranging measurement request frame, and generate the ranging measurement response frame, etc.

[0638] As an example, the transceiver module 3002 can be configured to receive the ranging measurement request frame from the ranging initiator. For example, the transceiver module 3002 can include a radio frequency module, an antenna module, etc.

[0639] As another example, the transceiver module 3002 can be configured to input the ranging measurement request frame. For example, the ranging measurement request frame is processed by the antenna and the radio frequency module, and then input into the transceiver module 3002, so that the processing module 3001 parses the ranging measurement request frame. For example, the transceiver module 3002 can include an input / output module, etc.

[0640] The transceiving module 3002 can also be configured to transmit or output a poll frame, and receive or input a CTS-to-self frame. The processing module 3001 can be configured to generate the poll frame, and parse the CTS-to-self frame.

[0641] The transceiving module 3002 can also be configured to transmit or output a ranging NDPA frame. The processing module 3001 can be configured to generate the ranging NDPA frame.

[0642] The transceiving module 3002 can also be configured to transmit or output a ranging probe trigger frame. The processing module 3001 can be configured to generate the ranging probe trigger frame.

[0643] The transceiving module 3002 can also be configured to receive or input a ranging PPDU, or transmit or output a ranging PPDU.

[0644] The transceiving module 3002 can also be configured to transmit or output a report frame. The processing module 3001 can be configured to generate the report frame.

[0645] The transceiving module 3002 can also be configured to receive or input a report frame. The processing module 3001 can be configured to parse the report frame.

[0646] The above is described by taking the TB ranging measurement interaction as an example. For the non-TB ranging measurement interaction:

[0647] The transceiving module 3002 can be configured to receive or input a ranging NDPA frame. The processing module 3001 can be configured to parse the ranging NDPA frame.

[0648] The transceiving module 3002 can also be configured to transmit or output a ranging PPDU, or receive or input a ranging PPDU.

[0649] The transceiving module 3002 can also be configured to transmit or output a report frame. The processing module 3001 can be configured to generate the report frame.

[0650] The transceiving module 3002 can also be configured to receive or input a report frame. The processing module 3001 can be configured to parse the report frame.

[0651] In some embodiments of the present disclosure, the communication apparatus can be configured to perform the actions performed by the SBP initiator in the above method embodiments. The communication apparatus can be a sensing device itself, or a chip or functional module configured in the device. The transceiving module 3002 can be configured to perform the transceiving related operations or input / output related operations of the SBP initiator in the above method embodiments. The processing module 3001 can be configured to perform the processing related operations of the SBP initiator in the above method embodiments.

[0652] The transceiver module 3002 can be configured to transmit or output the SBP request frame, and receive or input the SBP response frame. The processing module 3001 can be configured to generate the SBP request frame, and parse the SBP response frame, etc.

[0653] As an example, the transceiver module 3002 can be configured to transmit the SBP request frame, e.g., to the SBP response end. The transceiver module 3002 can include a radio frequency module, an antenna module, etc.

[0654] As another example, the transceiver module 3002 can be configured to output the SBP request frame. The transceiver module 3002 can include an input / output module, etc.

[0655] The transceiver module 3002 can also be configured to receive or input the SBP report frame.

[0656] In some embodiments of the present disclosure, the communication apparatus can be configured to perform the actions of the SBP response end in the above method embodiments. The transceiver module 3002 can be configured to perform the operations related to transceiving or the operations related to inputting and outputting of the SBP response end in the above method embodiments. The processing module 3001 can be configured to perform the operations related to processing of the SBP response end in the above method embodiments.

[0657] The transceiver module 3002 can be configured to receive or input the SBP request frame, and transmit or output the SBP response frame. The processing module 3001 can be configured to parse the SBP request frame, and generate the SBP response frame, etc.

[0658] As an example, the transceiver module 3002 can be configured to receive the SBP request frame from the SBP initiation end. The transceiver module 3002 can include a radio frequency module, an antenna module, etc.

[0659] As another example, the transceiver module 3002 can be configured to input the SBP request frame. After the SBP request frame is processed by an antenna, a radio frequency module, etc., the SBP request frame is input to the processing module 3001 by the transceiver module 3002, so that the processing module 3001 parses the SBP request frame. The transceiver module 3002 can include an input / output module, etc.

[0660] The transceiver module 3002 can also be configured to transmit or output the SBP report frame.

[0661] Optionally, in each of the above embodiments, the apparatus can further include a storage module, which can be configured to store instructions and / or data. The processing module 3001 can read the instructions and / or data in the storage module, so that the apparatus implements the above method embodiments.

[0662] In the above embodiments, the specific description of the terms or steps such as SBP request frame, SBP response frame, perception measurement request frame, perception measurement response frame, NDPA frame, probe trigger frame, perception PPDU, or ranging PPDU, etc. can refer to the description in the method embodiments, and will not be repeated here.

[0663] The specific description of the transceiver module and the processing module shown in the above embodiments is only an example. For the specific functions or steps of the transceiver module and the processing module, etc., reference can be made to the above method embodiments, and will not be described here.

[0664] It can be understood that the division of the modules in the above device is only a logical function division. Each function can correspond to a function module, or two or more functions can be integrated into one function module. In actual implementation, all or part of the modules can be integrated into one physical entity, or can be distributed in different physical entities. In addition, the above function modules can be implemented in the form of hardware, or in the form of software, or in the form of hardware combined with software. Whether a certain function is implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0665] In one example, the functional units in any of the above devices can be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASICs), or one or more central processing units (CPUs), one or more microcontroller units (MCUs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0666] The above introduces the device of the embodiments of the present application, and the following introduces the possible product form of the device. Any form of product that has the functions of the device described in the above FIG. 30 falls within the protection scope of the embodiments of the present application. The following introduction is only an example, and does not limit the product form of the device of the embodiments of the present application.

[0667] In a possible implementation, in the communication apparatus shown in FIG. 30, the processing module 3001 can be one or more processors, and the transceiver module 3002 can be a transceiver, or the transceiver module 3002 can also be a sending module and a receiving module, the sending module can be a transmitter, and the receiving module can be a receiver, and the sending module and the receiving module are integrated in one device, for example, a transceiver. In an embodiment of the application, the processor and the transceiver can be coupled, and the connection manner between the processor and the transceiver is not limited in the embodiment of the application. In the process of executing the above method, the process about sending information in the above method can be the process that the processor outputs the above information. When the above information is output, the processor outputs the above information to the transceiver, so that the transceiver transmits. After the above information is output by the processor, the above information can also need to be processed further, and then reaches the transceiver. Similarly, the process about receiving information in the above method can be the process that the processor receives the input above information. When the processor receives the input information, the transceiver receives the above information and inputs the processor. Further, after the transceiver receives the above information, the above information can need to be processed further, and then inputs the processor.

[0668] FIG. 31 is another structural schematic diagram of a communication apparatus provided by an embodiment of the application. As shown in FIG. 31, the communication apparatus 310 includes one or more processors 3120 and a transceiver 3110.

[0669] In some embodiments of the application, the communication apparatus can be used to execute the steps or methods or functions performed by the sensing initiator, for example, the processor 3120 can be used to execute the functions or steps implemented by the processing module 3001 shown in FIG. 30, and the transceiver 3110 can be used to execute the functions or steps implemented by the transceiver module 3002 shown in FIG. 30. The specific description of the processor 3120 and the transceiver 3110 can refer to FIG. 30 or the method embodiments shown above, and will not be described in detail here.

[0670] In some embodiments of the application, the communication apparatus can be used to execute the steps or methods or functions performed by the sensing initiator, for example, the processor 3120 can be used to execute the functions or steps implemented by the processing module 3001 shown in FIG. 30, and the transceiver 3110 can be used to execute the functions or steps implemented by the transceiver module 3002 shown in FIG. 30. The specific description of the processor 3120 and the transceiver 3110 can refer to FIG. 30 or the method embodiments shown above, and will not be described in detail here.

[0671] In some embodiments of the application, the communication device can be configured to perform the steps or methods or functions performed by the ranging initiator as described above, e.g., the processor 3120 can be configured to perform the functions or steps implemented by the processing module 3001 as illustrated in FIG. 30, and the transceiver 3110 can be configured to perform the functions or steps implemented by the transceiving module 3002 as illustrated in FIG. 30. For details about the processor 3120 and the transceiver 3110, reference can be made to FIG. 30 or the method embodiments described above, which will not be repeated here.

[0672] In some embodiments of the application, the communication device can be configured to perform the steps or methods or functions performed by the ranging initiator as described above, e.g., the processor 3120 can be configured to perform the functions or steps implemented by the processing module 3001 as illustrated in FIG. 30, and the transceiver 3110 can be configured to perform the functions or steps implemented by the transceiving module 3002 as illustrated in FIG. 30. For details about the processor 3120 and the transceiver 3110, reference can be made to FIG. 30 or the method embodiments described above, which will not be repeated here.

[0673] In some embodiments of the application, the communication device can be configured to perform the steps or methods or functions performed by the ranging initiator as described above, e.g., the processor 3120 can be configured to perform the functions or steps implemented by the processing module 3001 as illustrated in FIG. 30, and the transceiver 3110 can be configured to perform the functions or steps implemented by the transceiving module 3002 as illustrated in FIG. 30. For details about the processor 3120 and the transceiver 3110, reference can be made to FIG. 30 or the method embodiments described above, which will not be repeated here.

[0674] In some embodiments of the application, the communication device can be configured to perform the steps or methods or functions performed by the ranging initiator as described above, e.g., the processor 3120 can be configured to perform the functions or steps implemented by the processing module 3001 as illustrated in FIG. 30, and the transceiver 3110 can be configured to perform the functions or steps implemented by the transceiving module 3002 as illustrated in FIG. 30. For details about the processor 3120 and the transceiver 3110, reference can be made to FIG. 30 or the method embodiments described above, which will not be repeated here.

[0675] In each of the implementations of the device illustrated in FIG. 31, the transceiver can include a receiver configured to perform the functions (or operations) of receiving and a transmitter configured to perform the functions (or operations) of transmitting. And the transceiver is configured to communicate with other devices / apparatuses through transmission media.

[0676] Optionally, the apparatus 310 can further include one or more memories 3130 that are operatively coupled to the processor 3120 and that store instructions and / or data. The memories 3130 and the processor 3120 can be coupled either directly or via the bus 3140. The memories 3130 can be of any type of volatile or non-volatile memory, and for storing data and / or instructions that can be executed by the processor 3120. The memory 3130 can be internal or external to the processor 3120.

[0677] The specific connection medium between the transceiver 3110, the processor 3120 and the memory 3130 is not limited in the embodiments. In FIG. 31, the memory 3130, the processor 3120 and the transceiver 3110 are connected through the bus 3140, which is represented by a thick line in FIG. 31. The connection between other components is only schematically shown and is not limited. The bus can be divided into an address bus, a data bus, a control bus, etc. For convenience, only one thick line is shown in FIG. 31, but it does not mean that there is only one bus or only one type of bus.

[0678] In the embodiments, the processor can be a general processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The processor can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments. The general processor can be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments can be directly embodied as executed by a hardware processor, or a combination of hardware and software modules in the processor, etc.

[0679] The memory in the embodiments of the present application can include, but is not limited to, a non-volatile memory such as a hard disk drive (HDD) or a solid-state drive (SSD), a random access memory (RAM), an erasable programmable ROM (EPROM), a read-only memory (ROM), a compact disc read-only memory (CD-ROM), and the like. The memory is any storage medium that can be used to carry or store program codes in the form of instructions or data structures and can be read and / or written by a computer (such as the device shown in the present application and the like). The memory in the embodiments of the present application can also be a circuit or any other device capable of realizing a storage function, used for storing program instructions and / or data.

[0680] The processor 3120 is mainly used for processing communication protocols and communication data, controlling the whole device, executing software programs, and processing data of the software programs. The memory 3130 is mainly used for storing software programs and data. The transceiver 3110 can include a control circuit and an antenna, and the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. The input and output devices, such as touch screens, display screens, keyboards, and the like, are mainly used for receiving user input data and outputting data to users.

[0681] When the device is powered on, the processor 3120 can read the software program in the memory 3130, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 3120 performs baseband processing on the data to be transmitted, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit converts the baseband signal into a radio frequency signal, and transmits the radio frequency signal in the form of electromagnetic waves through the antenna. When data is transmitted to the device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 3120. The processor 3120 converts the baseband signal into data and processes the data.

[0682] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processor performing baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged remotely from the device.

[0683] The apparatus shown in the embodiments of the present application can also have more components than those shown in FIG. 31, and the embodiments of the present application do not limit this. The method performed by the processor and the transceiver shown above is only an example, and the specific steps performed by the processor and the transceiver can refer to the method described above.

[0684] In another possible implementation, in the apparatus shown in FIG. 30, the processing module 3001 can be one or more logic circuits, and the transceiving module 3002 can be an input / output interface, also referred to as a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiving module 3002 can also be a sending module and a receiving module, the sending module can be an output interface, and the receiving module can be an input interface, and the sending module and the receiving module are integrated into one module, for example, an input / output interface.

[0685] FIG. 32 is another structure of a communication apparatus provided by the embodiments of the present application. As shown in FIG. 32, the apparatus shown in FIG. 32 includes a logic circuit 3201 and an interface 3202. That is, the processing module 3001 can be implemented by the logic circuit 3201, and the transceiving module 3002 can be implemented by the interface 3202. The logic circuit 3201 can be a chip, a processing circuit, an integrated circuit, or a system on chip (SoC) chip, etc., and the interface 3202 can be a communication interface, an input / output interface, a pin, or an interface circuit, etc. For example, FIG. 32 is shown by taking the above apparatus as a chip, which includes the logic circuit 3201 and the interface 3202.

[0686] In the embodiments of the present application, the logic circuit and the interface can also be coupled to each other. The embodiments of the present application do not limit the specific connection mode of the logic circuit and the interface. For example, the logic circuit 3201 can be used to perform the functions or steps implemented by the processing module 3001 shown in FIG. 30, and the interface 3202 can be used to perform the functions or steps implemented by the transceiving module 3002 shown in FIG. 30. For specific description of the logic circuit 3201 and the interface 3202, refer to the method embodiments shown in FIG. 30 or the above description, which will not be described in detail here.

[0687] The apparatus shown in the embodiments of the present application can implement the method provided by the embodiments of the present application in the form of hardware, or implement the method provided by the embodiments of the present application in the form of software, etc., and the embodiments of the present application do not limit this.

[0688] The embodiments of the present application also provide a communication system, which includes a sensing initiator and a sensing responder, and the sensing initiator and the sensing responder can be used to perform the method in any of the preceding embodiments.

[0689] The embodiments of the present application further provide a communication system, which comprises a ranging initiator and a ranging responder, and the ranging initiator and the ranging responder can be used to perform the method in any of the foregoing embodiments.

[0690] The embodiments of the present application further provide a communication system, which comprises an SBP initiator and an SBP responder, and the SBP initiator and the SBP responder can be used to perform the method in any of the foregoing embodiments.

[0691] In addition, the present application further provides a computer program for implementing the operations and / or processes performed by various devices in the method provided by the present application.

[0692] The present application further provides a computer readable storage medium, which stores computer code, when the computer code is run on a computer, the computer code causes the computer to perform the operations and / or processes performed by various devices in the method provided by the present application.

[0693] The present application further provides a computer program product, which comprises computer code or a computer program, when the computer code or the computer program is run on a computer, the operations and / or processes performed by various devices in the method provided by the present application are performed.

[0694] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other manners. For example, the device embodiments described above are only schematic, for example, the division of the modules is only a logical function division, and actual implementation can have another division manner, for example, a plurality of modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be indirect coupling or communication connection through some interfaces, devices or modules, and can also be electrical, mechanical or other form of connection.

[0695] The modules described as separate components can or can not be physically separated, and the components displayed as modules can or can not be physical modules, that is, they can be located in one place, or can be distributed to a plurality of network modules. According to actual needs, part or all of the modules can be selected to achieve the technical effects of the scheme provided by the embodiments of the present application.

[0696] In addition, each functional module in the embodiments of the present application can be integrated into a processing module, or each module can exist physically, or two or more modules can be integrated into one module. The integrated module can be realized in the form of hardware or in the form of software functional module.

[0697] The integrated module, if implemented in the form of a software function module and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or say the part of the prior art that contributes to the present application, or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a readable storage medium, including a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in various embodiments of the present application. The aforementioned readable storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0698] 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 can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of cognitive communication, the method comprising: The method comprises: The sensing initiator transmits a sensing null data packet announcement (NDPA) frame in a first frequency band, and transmits a first physical layer convergence procedure protocol data unit (PPDU) for sensing in a second frequency band, the frequency of the second frequency band being higher than that of the first frequency band; The sensing initiator transmits a sensing probe trigger frame in the second frequency band, and receives a second PPDU for sensing in the second frequency band.

2. The method of claim 1, wherein, The sensing initiator transmits a sensing probe trigger frame in the second frequency band, comprising: The sensing initiator transmits, in the second frequency band, a sensing probe trigger frame corresponding to a first sensing responder to the first sensing responder, and transmits a sensing probe trigger frame corresponding to a second sensing responder to the second sensing responder; or, The sensing initiator transmits, in the second frequency band, the sensing probe trigger frame corresponding to the first sensing responder to the first sensing responder at different time instants, and transmits the sensing probe trigger frame corresponding to the second sensing responder to the second sensing responder at different time instants.

3. The method according to claim 1 or 2, characterized in that, The sensing initiator receives, in the second frequency band, the second PPDU for sensing, comprising: The sensing initiator receives, in the second frequency band, the second PPDU from the first sensing responder, and receives the second PPDU from the second sensing responder at the same time; or, The sensing initiator receives, in the second frequency band, the second PPDU from the first sensing responder at different time instants, and receives the second PPDU from the second sensing responder at different time instants.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: The sensing initiator transmits a report trigger frame in the first frequency band, and receives a report frame in the first frequency band; or, The sensing initiator transmits a report trigger frame in the first frequency band, and receives a report frame in the second frequency band.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: The sensing initiator transmits a sensing poll frame in the first frequency band, and receives a reply frame of the sensing poll frame in the first frequency band.

6. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: The sensing initiator transmits a sensing poll frame to a sensing broker proxy (SBP) initiator in the first frequency band.

7. The method according to any one of claims 1 to 6, characterized in that, The frequency range of the second frequency band comprises 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band comprises 2.4 GHz to 7.25 GHz.

8. A method of cognitive communication, the method comprising: The method comprises: The sensing responder receives a sensing null data packet announcement (NDPA) frame in a first frequency band, and receives a first physical layer convergence procedure protocol data unit (PPDU) for sensing in a second frequency band, the frequency of the second frequency band being higher than that of the first frequency band; The sensing responder receives a sensing probe trigger frame in the second frequency band, and transmits a second PPDU for sensing in the second frequency band.

9. The method of claim 8, wherein, The method further comprises: the sensing responder receives a report trigger frame in the first frequency band, and transmits a report frame in the first frequency band; or, The sensing responder receives a report trigger frame in the second frequency band, and transmits a report frame in the second frequency band.

10. The method according to claim 8 or 9, characterized in that, The method further comprises: The sensing responder receives a sensing poll frame in the first frequency band, and transmits a reply frame of the sensing poll frame in the first frequency band.

11. The method according to any one of claims 8-10, characterized in that, The frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

12. A communication method characterized by comprising: The method comprises: The initiator transmits a null data packet announcement (NDPA) frame in the first frequency band; The initiator transmits a first physical layer convergence procedure protocol data unit (PPDU) in the second frequency band, and receives a second PPDU in the second frequency band, the frequency of the second frequency band being higher than that of the first frequency band.

13. The method of claim 12, wherein, The method further comprises: The initiator receives a report frame in the first frequency band; or The initiator receives a report frame in the second frequency band.

14. The method according to claim 12 or 13, characterized in that, The frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

15. A method of communication, comprising: The method comprises: The responder receives a null data packet announcement (NDPA) frame in the first frequency band; The responder receives a first physical layer convergence procedure protocol data unit (PPDU) in the second frequency band, and transmits a second PPDU in the second frequency band, the frequency of the second frequency band being higher than that of the first frequency band.

16. The method of claim 15, wherein, The method further comprises: The responder transmits a report frame in the first frequency band; or The responder transmits a report frame in the second frequency band.

17. The method according to claim 15 or 16, characterized in that, The frequency range of the second frequency band includes 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band includes 2.4 GHz to 7.25 GHz.

18. A ranging communication method characterized by comprising: The method comprises: The ranging responder transmits a ranging probe trigger frame in the second frequency band, and receives a second physical layer convergence procedure protocol data unit (PPDU) for ranging in the second frequency band; The ranging responder transmits a ranging null data packet announcement (NDPA) frame in the first frequency band, and transmits a first PPDU for ranging in the second frequency band, the frequency of the second frequency band being higher than that of the first frequency band.

19. The method of claim 18, wherein, The ranging responder transmits a ranging probe trigger frame in the second frequency band comprises: The ranging responder transmits, in the second frequency band, a ranging probe trigger frame corresponding to a first ranging initiator, and simultaneously transmits, in the second frequency band, a ranging probe trigger frame corresponding to a second ranging initiator; or The ranging responder transmits, in the second frequency band, a ranging probe trigger frame corresponding to the first ranging initiator and a ranging probe trigger frame corresponding to the second ranging initiator at different time instants, respectively.

20. The method of claim 18 or 19, wherein, The ranging responder receives a second physical layer convergence procedure protocol data unit (PPDU) for ranging in the second frequency band comprises: The ranging responder receives, in the second frequency band, a second PPDU from the first ranging initiator and a second PPDU from the second ranging initiator; or The ranging responder receives, in the second frequency band, a second PPDU from the first ranging initiator and a second PPDU from the second ranging initiator at different time instants, respectively.

21. The method according to any one of claims 18-20, characterized by, The method further comprises: The ranging responder transmits a report frame from the ranging responder to a ranging initiator in the first frequency band; or The ranging responder transmits a report frame from the ranging responder to a ranging initiator in the second frequency band. The ranging response end transmits a report frame from the ranging response end to the ranging initiation end in the second frequency band.

22. The method according to any one of claims 18-21, characterized by, The method further comprises: The ranging response end receives a report frame from the ranging initiation end to the ranging response end in the first frequency band; or, The ranging response end receives a report frame from the ranging initiation end to the ranging response end in the second frequency band.

23. The method according to any one of claims 18-22, characterized by, The method further comprises: The ranging response end transmits a ranging poll frame in the first frequency band, and receives a reply frame of the ranging poll frame in the first frequency band.

24. The method according to any one of claims 18-23, characterized by, The frequency range of the second frequency band comprises 42 gigahertz (GHz) to 71 GHz, and the frequency range of the first frequency band comprises 2.4 GHz to 7.25 GHz.

25. A ranging communication method, comprising: The method comprises: The ranging initiation end receives a ranging probe trigger frame in the second frequency band, and transmits a second physical layer convergence procedure protocol data unit (PPDU) for ranging in the second frequency band; The ranging initiation end receives a ranging NDPA frame in the first frequency band, and receives a first PPDU for ranging in the second frequency band, the frequency of the second frequency band being higher than the frequency of the first frequency band.

26. The method of claim 25, wherein, The method further comprises: The ranging initiation end receives a report frame from the ranging response end to the ranging initiation end in the first frequency band; or, The ranging initiation end receives a report frame from the ranging response end to the ranging initiation end in the second frequency band.

27. The method of claim 25 or 26, wherein, The method further comprises: The ranging initiation end transmits a report frame from the ranging initiation end to the ranging response end in the first frequency band; or, The ranging initiation end transmits a report frame from the ranging initiation end to the ranging response end in the second frequency band.

28. The method of any one of claims 25-27, wherein, The method further comprises: The ranging initiation end receives a ranging poll frame in the first frequency band, and transmits a reply frame of the ranging poll frame in the first frequency band.

29. A communications device, characterized by The apparatus comprises a module for performing the method according to any one of claims 1-28.

30. A communications device, characterized by The apparatus comprises a processor configured to perform the method according to any one of claims 1-28.

31. The apparatus of claim 30, wherein, The apparatus further comprises a transceiver configured to transmit or receive information.

32. A communications device, characterized by The apparatus comprises a logic circuit and an interface, the logic circuit and the interface being coupled; The interface is configured to input and / or output information, and the logic circuit is configured to perform the method according to any one of claims 1-28.

33. A computer-readable storage medium, characterized in that, The computer readable storage medium is configured to store a computer program, the computer program being configured to perform the method according to any one of claims 1-28 when executed.

34. A computer program product, characterised in that, The computer program product is configured to perform the method according to any one of claims 1-28 when executed.

35. A communication system, characterized by The apparatus comprises a sensing initiation end configured to perform the method according to any one of claims 1-7, and a sensing response end configured to perform the method according to any one of claims 8-11.

36. A communication system, characterized by The apparatus comprises an initiation end configured to perform the method according to any one of claims 12-14, and a response end configured to perform the method according to any one of claims 15-17.

37. A communication system, characterized by comprising a ranging initiator and a ranging responder, the ranging responder being configured to perform the method of any one of claims 18-24, the awareness responder being configured to perform the method of any one of claims 25-28.

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