Communication method, device and system

Abstract

A communication method, device and system can be applied to the technical field of communication. The method can be applied to an IEEE 802.11 series protocol, such as an 802.11 bf protocol or an 802.11 ax next generation Wi-Fi protocol or an IEEE 802.11 be next generation Wi-Fi protocol or Wi-Fi AI or integrated millimeter wave (IMMW) or ultra wide band (UWB) and the like. For example, the perceptual initiator may transmit a control frame at a low frequency, and transmit a perceptual PPDU at a high frequency, or receive a perceptual PPDU at a high frequency. For example, the ranging response end can send the control frame at a low frequency, send the ranging PPDU at a high frequency, or receive the ranging PPDU at the high frequency. The control frame may include, but is not limited to, a polling frame, an NDPA frame, a probe trigger frame, and a report trigger frame. The method can effectively improve the flexibility of the sensing process or the ranging process and improve the sensing performance or the ranging performance.

Description

Technical Field

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

[0002] The Institute of Electrical and Electronics Engineers (IEEE) 802.11bf is a next-generation wireless standard focused on sensing passive objects (i.e., targets without any devices). 802.11bf includes two broad categories: low-frequency (e.g., below 7 GHz, primarily implemented using 802.11ac, 802.11ax, 802.11be, 802.11bn, and future generations) and high-frequency (e.g., greater than or equal to 60 GHz, primarily implemented using 802.11ad, 802.11ay, and future generations).

[0003] In the 802.11bf standard, sensing devices can estimate parameters (such as speed, distance, and angle) of perceived targets based on received signals. The estimated results can be used for subsequent motion / behavior recognition. In existing solutions, due to the significant difference in bandwidth between high-frequency and low-frequency bands, the high-frequency and low-frequency sensing processes are performed independently, meaning each has its own independent and complete sensing process.

[0004] However, the perceptual performance of the above schemes needs to be improved. Summary of the Invention

[0005] The embodiments of the present application provide a communication method, device, and system that can improve the flexibility of the perception process and enhance perception performance.

[0006] In a first aspect, an embodiment of the present application provides a perception communication method, which is applied to a perception initiating terminal and includes:

[0007] The perception initiator sends a control frame in a first frequency band, and transmits (such as sending or receiving) a physical layer convergence procedure (PLCP) protocol data unit (PHY protocol data unit, PPDU) for perception in a second frequency band, and the frequency of the second frequency band is higher than the frequency of the first frequency band.

[0008] The PPDU for sensing can also be referred to as a sensing PPDU simply, which can be various null data packets (NDPs) and the like. The control frame can be a frame involved in a sensing measurement session. The control frame can include, but is not limited to, at least one of the following: a sensing poll frame, a sensing null data packet announcement (NDPA) frame, a sensing probe trigger frame, a sensing report trigger frame, a clear to send (CTS) to self frame, or a report frame.

[0009] 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.

[0010] 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.

[0011] 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 on the lower frequency, the stability and anti-blocking of the control frame transmission can be effectively guaranteed, the reliability of the control frame transmission is improved, and the smooth progress of the sensing measurement is effectively guaranteed. At the same time, by transmitting the PPDU for sensing on the higher frequency, the sensing measurement can be performed by using a large bandwidth, so that the sensing performance can be effectively improved. The lower frequency shown here is relative to the second frequency band, and the higher frequency is relative to the first frequency band.

[0012] As a possible implementation manner 1, the sensing initiator transmits the control frame on the first frequency band, and transmits the PPDU for sensing on the second frequency band, including:

[0013] The sensing initiator transmits a sensing NDPA frame in the first frequency band, and transmits a first PPDU for sensing in the second frequency band.

[0014] In the embodiments of the present application, the sensing NDPA frame can be used to schedule one or more sensing responders.

[0015] With reference to the implementation manner 1 in the first aspect, in a possible implementation manner, the method further includes:

[0016] The sensing initiator transmits a sensing probe trigger 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 probe trigger frame in the second frequency band, and receives a second PPDU for sensing in the second frequency band; or, the sensing initiator transmits a sensing probe trigger frame in the first frequency band, and receives a second PPDU for sensing in the first frequency band; or, the sensing initiator transmits a sensing probe trigger frame in the second frequency band, and receives a second PPDU for sensing in the first frequency band.

[0017] In the embodiments of the present application, the sensing probe trigger frame can be used to allocate measurement resources for the sensing responders. The transmission of the first PPDU and the second PPDU in the second frequency band can effectively utilize the large bandwidth on the high frequency for sensing measurement, improve the sensing measurement accuracy, and improve the performance.

[0018] In the embodiments of the present application, the transmission of the sensing probe trigger frame in the first frequency band can effectively ensure the stability and the anti-blocking of the sensing probe trigger frame transmission, improve the reliability of the sensing probe trigger frame transmission, and effectively ensure the smooth progress of the sensing measurement.

[0019] In the embodiments of the present application, the transmission of the sensing probe trigger frame in the second frequency band can effectively reduce the switching frequency and the complexity of channel access, can effectively ensure the efficiency of the sensing measurement, and reduce the complexity of the sensing measurement.

[0020] With reference to the implementation manner 1 in the first aspect, in a possible implementation manner, the method further includes:

[0021] 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 second 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.

[0022] 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 smoothly performed. The report trigger frame and the report frame are transmitted in the second frequency band, which can effectively reduce the switching times and the complexity of channel access of the high and low frequencies, can effectively ensure the efficiency of the sensing measurement, and reduce the complexity of the sensing measurement.

[0023] With reference to the first aspect, in a possible implementation, the method further includes:

[0024] 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.

[0025] The beneficial effects of transmitting the control frame in the first frequency band or the second frequency band can be referred to the description above, and will not be repeated here.

[0026] In a possible implementation, the method further includes: the sensing initiator transmits a sensing poll frame to a sensing by proxy (SBP) initiator in the first frequency band.

[0027] For example, the SBP initiator is a STA that has no association with the sensing initiator. For the STA associated with the sensing initiator, the sensing initiator can transmit a sensing poll frame to the STA, or can not transmit a sensing poll frame, which is not limited in the embodiments of the present application.

[0028] In a possible implementation, the sensing initiator transmits a sensing probe trigger frame in the second frequency band, including:

[0029] The sensing initiator transmits the sensing probe trigger frame corresponding to the first sensing responder to the first sensing responder, and transmits the sensing probe trigger frame corresponding to the second sensing responder to the second sensing responder in the second frequency band; or, the sensing initiator transmits the sensing probe trigger frame corresponding to the first sensing responder to the first sensing responder, and transmits the sensing probe trigger frame corresponding to the second sensing responder to the second sensing responder at different time instants in the second frequency band.

[0030] In a possible implementation, the sensing initiator receives the second PPDU for sensing in the second frequency band, comprising:

[0031] The sensing initiator receives the second PPDU from the first sensing responder in the second frequency band at the same time as receiving the second PPDU from the second sensing responder in the second frequency band; or the sensing initiator performs the following steps in the second frequency band at different time instants: receiving the second PPDU from the first sensing responder and receiving the second PPDU from the second sensing responder.

[0032] 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:

[0033] 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.

[0034] With reference to the implementation 2 in the first aspect, in a possible implementation, the method further comprises:

[0035] 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.

[0036] With reference to the implementation 2 in the first aspect, in a possible implementation, the method further comprises:

[0037] 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 first 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.

[0038] With reference to the implementation 2 in the first aspect, in a possible implementation, the method further comprises:

[0039] 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.

[0040] 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:

[0041] 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.

[0042] 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.

[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 probe trigger 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:

[0045] 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.

[0046] As a possible implementation 4, the sensing initiator transmits a control frame in the first frequency band and transmits a PPDU for sensing in the second frequency band includes:

[0047] The sensing initiator transmits a report trigger frame in the first frequency band after transmitting the first PPDU for sensing in the second frequency band; or, the sensing initiator transmits the report trigger frame in the first frequency band after receiving the second PPDU for sensing in the second frequency band; or, the sensing initiator transmits the report trigger frame in the first frequency band after transmitting the first PPDU for sensing in the second frequency band and receiving the second PPDU for sensing in the second frequency band.

[0048] With reference to the fourth implementation manner of the first aspect, in a possible implementation manner, the method further includes:

[0049] The sensing initiator transmits a sensing NDPA frame in the first frequency band; or, the sensing initiator transmits the sensing NDPA frame in the second frequency band.

[0050] With reference to the fourth implementation manner of the first aspect, in a possible implementation manner, the method further includes:

[0051] The sensing initiator transmits a sensing probe trigger frame in the first frequency band; or, the sensing initiator transmits the sensing probe trigger frame in the second frequency band.

[0052] With reference to the fourth implementation manner of the first aspect, in a possible implementation manner, the method further includes:

[0053] The sensing initiator receives a report frame in the first frequency band; or, the sensing initiator receives the report frame in the second frequency band.

[0054] With reference to the fourth implementation manner of the first aspect, in a possible implementation manner, the method further includes:

[0055] The sensing initiator transmits a sensing poll frame in the first frequency band; or, the sensing initiator transmits the sensing poll frame in the second frequency band.

[0056] With reference to the fourth implementation manner of the first aspect, in a possible implementation manner, the method further includes:

[0057] The sensing initiator receives a reply frame of the sensing poll frame in the first frequency band; or, the sensing initiator receives the reply frame of the sensing poll frame in the second frequency band.

[0058] As a possible implementation manner 5, the sensing initiator transmits a control frame in the first frequency band, and transmits a PPDU for sensing in the second frequency band includes:

[0059] The sensing initiator transmits a sensing NDPA 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 NDPA 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 NDPA 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.

[0060] With reference to the method in the 5th implementation manner of the first aspect, in a possible implementation manner, the method further includes:

[0061] 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.

[0062] With reference to the method in the 5th implementation manner of the first aspect, in a possible implementation manner, the method further includes:

[0063] The sensing initiator transmits a report trigger frame in the first frequency band; or the sensing initiator transmits a report trigger frame in the second frequency band.

[0064] 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.

[0065] The present application embodiment is not limited to the sequence of the steps in the above-mentioned various implementation manners.

[0066] In the second aspect, the present application embodiment provides a sensing communication method, which is applied to a sensing response end, and includes the following steps:

[0067] The sensing response end receives a control frame in a first frequency band, and transmits a PPDU for sensing in a second frequency band, where the frequency of the second frequency band is higher than the frequency of the first frequency band.

[0068] As a possible implementation manner 1, the sensing response end receiving a control frame in a first frequency band, and transmitting a PPDU for sensing in a second frequency band includes:

[0069] 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.

[0070] With reference to the method in the 1st implementation manner of the second aspect, in a possible implementation manner, the method further includes:

[0071] 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 second frequency band; 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 first frequency band.

[0072] With reference to the implementation 1 in the second aspect, in a possible implementation, the method further includes:

[0073] 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.

[0074] With reference to the implementation 1 in the second aspect, in a possible implementation, the method further includes:

[0075] 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.

[0076] As a possible implementation 2, 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:

[0077] 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.

[0078] With reference to the implementation 2 in the second aspect, in a possible implementation, the method further includes:

[0079] The sensing response 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 response 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 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 second frequency band and receives a first PPDU for sensing in the first frequency band.

[0080] With reference to the implementation 2 in the second aspect, in a possible implementation, the method further includes:

[0081] 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.

[0082] With reference to the implementation 2 in the second aspect, in a possible implementation, the method further includes:

[0083] 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.

[0084] As a possible implementation 3, 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:

[0085] 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.

[0086] With reference to the implementation 3 in the second aspect, in a possible implementation, the method further includes: receiving, by the sensing responding end, a sensing NDPA frame in the second frequency band.

[0087] With reference to the implementation 3 in the second aspect, in a possible implementation, the method further includes: receiving, by the sensing responding end, a sensing probe trigger 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:

[0089] receiving, by the sensing responding end, a report trigger frame in the first frequency band and transmitting a report frame in the first frequency band; or receiving, by the sensing responding end, a report trigger frame in the second frequency band and transmitting a report frame in the second frequency band; or receiving, by the sensing responding end, a report trigger frame in the first frequency band and transmitting a report frame in the second frequency band; or receiving, by the sensing responding end, a report trigger frame in the second frequency band and transmitting a report frame in the first frequency band.

[0090] As a possible implementation 4, the method further includes: receiving, by the sensing responding end, a control frame in the first frequency band and transmitting a PPDU for sensing in the second frequency band.

[0091] receiving, by the sensing responding end, a report trigger frame in the first frequency band after receiving a first PPDU for sensing in the second frequency band; or receiving, by the sensing responding end, a report trigger frame in the first frequency band after transmitting a second PPDU for sensing in the second frequency band; or receiving, by the sensing responding end, 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.

[0092] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0093] receiving, by the sensing responding end, a sensing NDPA frame in the first frequency band; or receiving, by the sensing responding end, a sensing NDPA frame in the second frequency band.

[0094] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0095] receiving, by the sensing responding end, a sensing probe trigger frame in the first frequency band; or receiving, by the sensing responding end, a sensing probe trigger frame in the second frequency band.

[0096] With reference to the implementation 4 in the first aspect, in a possible implementation, the method further includes:

[0097] The sensing response end transmits a report frame in the first frequency band; or, the sensing response end transmits a report frame in the second frequency band.

[0098] With reference to the implementation manner 4 in the first aspect, in a possible implementation manner, the method further includes:

[0099] 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.

[0100] With reference to the implementation manner 4 in the first aspect, in a possible implementation manner, the method further includes:

[0101] The sensing response end transmits a reply frame of the sensing poll frame in the first frequency band; or, the sensing response end transmits a reply frame of the sensing poll frame in the second frequency band.

[0102] As a possible implementation manner 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:

[0103] 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 transmits 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 transmits a second PPDU for sensing in the second frequency band.

[0104] With reference to the implementation manner 5 in the second aspect, in a possible implementation manner, the method further includes:

[0105] The sensing response end transmits a report frame in the first frequency band; or, the sensing response end transmits a report frame in the second frequency band.

[0106] With reference to the implementation manner 5 in the second aspect, in a possible implementation manner, the method further includes:

[0107] 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.

[0108] 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.

[0109] The description of the second aspect can refer to the first aspect, and will not be described here in detail.

[0110] In a third aspect, an embodiment of the present application provides a ranging communication method, applied to a first device, the method comprising:

[0111] 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 that of the first frequency band.

[0112] 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.

[0113] 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.

[0114] 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, etc. 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, etc.

[0115] As a possible implementation manner 1, the first device transmits a control frame in a first frequency band, and transmits a PPDU for ranging in a second frequency band includes that 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.

[0116] With reference to the implementation manner 1 in the third aspect, in a possible implementation manner, the method further comprises:

[0117] 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; or, the first device transmits 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 transmits 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 transmits a ranging probe trigger frame in the second frequency band and receives a second PPDU for ranging in the first frequency band.

[0118] With reference to the first aspect, in a possible implementation of the first aspect, the method further includes:

[0119] The first device transmits the ranging response-to-initiator report frame in the first frequency band; or, the first device transmits the ranging response-to-initiator report frame in the second frequency band.

[0120] With reference to the first aspect, in a possible implementation of the first aspect, the method further includes:

[0121] The first device receives the ranging initiator-to-response report frame in the first frequency band; or, the first device receives the ranging initiator-to-response report frame in the second frequency band.

[0122] With reference to the first aspect, in a possible implementation of the first aspect, the method further includes:

[0123] 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; or, the first device transmits 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 transmits 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 transmits a ranging probe trigger frame in the second frequency band and receives a second PPDU for ranging in the first frequency band.

[0124] As a possible implementation of the second aspect, the first device transmits a control frame in the first frequency band and transmits a PPDU for ranging in the second frequency band includes:

[0125] 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.

[0126] With reference to the second aspect, in a possible implementation of the second aspect, the method further includes:

[0127] 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.

[0128] With reference to the second aspect, in a possible implementation of the first aspect, the method further includes:

[0129] The first device transmits the ranging response-to-initiation report frame in the first frequency band; or, the first device transmits the ranging response-to-initiation report frame in the second frequency band.

[0130] With reference to the second aspect, in a possible implementation of the first aspect, the method further includes:

[0131] The first device receives the ranging initiation-to-response report frame in the first frequency band; or, the first device receives the ranging initiation-to-response report frame in the second frequency band.

[0132] With reference to the second aspect, in a possible implementation of the first aspect, the method further includes:

[0133] 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.

[0134] As a possible implementation of the third aspect, the first device transmits a control frame in the first frequency band, and transmits a PPDU for ranging in the second frequency band includes:

[0135] The first device transmits a ranging poll frame in the first frequency band, transmits a first PPDU for ranging in the second frequency band; or, the first device transmits a ranging poll frame in the first frequency band, receives a second PPDU for sensing in the second frequency band; or, the first device transmits a ranging poll 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.

[0136] With reference to the third aspect as per the implementation 3, in a possible implementation, the method further includes: the first device transmits a ranging NDPA frame in the second frequency band.

[0137] With reference to the third aspect as per the implementation 3, in a possible implementation, the method further includes: the first device transmits a ranging probe trigger frame in the second frequency band.

[0138] With reference to the third aspect as per the implementation 3, in a possible implementation, the method further includes:

[0139] The first device transmits the ranging response-to-initiator report frame in the first frequency band; or, the first device transmits the ranging response-to-initiator report frame in the second frequency band.

[0140] With reference to the third aspect as per the implementation 3, in a possible implementation, the method further includes:

[0141] The first device receives the ranging initiator-to-response report frame in the first frequency band; or, the first device receives the ranging initiator-to-response report frame in the second frequency band.

[0142] As a possible implementation 4, the first device transmits a control frame in the first frequency band, and transmits a PPDU for ranging in the second frequency band includes:

[0143] The first device transmits the ranging response-to-initiator 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-to-initiator 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-to-initiator 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.

[0144] With reference to the third aspect as per the implementation 4, in a possible implementation, the method further includes:

[0145] The first device transmits a ranging NDPA frame in the first frequency band; or the first device transmits a ranging NDPA frame in the second frequency band.

[0146] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0147] The first device transmits a ranging probe trigger frame in the first frequency band; or the first device transmits a ranging probe trigger frame in the second frequency band.

[0148] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0149] The first device receives a report frame from the ranging initiator to the ranging responder in the first frequency band; or the first device receives a report frame from the ranging initiator to the ranging responder in the second frequency band.

[0150] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0151] The first device transmits a ranging poll frame in the first frequency band; or the first device transmits a ranging poll frame in the second frequency band.

[0152] With reference to the fourth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0153] The first device receives a reply frame of the ranging poll frame in the first frequency band; or the first device receives a reply frame of the ranging poll frame in the second frequency band.

[0154] As a possible implementation manner 5, the first device transmits a control frame in the first frequency band, and transmits a PPDU for ranging in the second frequency band, including:

[0155] 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.

[0156] With reference to the fifth implementation manner of the third aspect, in a possible implementation manner, the method further includes:

[0157] The sensing initiator receives a report frame from the ranging responder to the ranging initiator in the first frequency band; or, the sensing initiator receives the report frame from the ranging responder to the ranging initiator in the second frequency band.

[0158] With reference to the implementation 5 in the third aspect, in a possible implementation, the method further includes:

[0159] The sensing initiator transmits a report frame from the ranging initiator to the ranging responder in the first frequency band; or, the sensing initiator transmits the report frame from the ranging initiator to the ranging responder in the second frequency band.

[0160] 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.

[0161] In 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:

[0162] The second device receives 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 is higher than the frequency of the first frequency band.

[0163] The descriptions about the first device or the second device in the fourth aspect can refer to the third aspect, and will not be described here in detail.

[0164] As a possible implementation 1, the second device receives a control frame in a first frequency band, and transmits a PPDU for ranging in a second frequency band includes:

[0165] 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.

[0166] With reference to the implementation 1 in the fourth aspect, in a possible implementation, the method further includes:

[0167] 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 the ranging probe trigger frame in the second frequency band, and transmits the second PPDU for ranging in the second frequency band; or, the second device receives the ranging probe trigger frame in the first frequency band, and transmits the second PPDU for ranging in the first frequency band; or, the second device receives the ranging probe trigger frame in the second frequency band, and transmits the second PPDU for ranging in the first frequency band.

[0168] With reference to the implementation 1 in the fourth aspect, in a possible implementation, the method further includes:

[0169] The second device receives the ranging response-to-initiation report frame in the first frequency band; or, the second device receives the ranging response-to-initiation report frame in the second frequency band.

[0170] With reference to the implementation 1 in the fourth aspect, in a possible implementation, the method further includes:

[0171] The second device transmits the ranging initiation-to-response report frame in the first frequency band; or, the second device transmits the ranging initiation-to-response report frame in the second frequency band.

[0172] With reference to the implementation 1 in the fourth aspect, in a possible implementation, the method further includes:

[0173] The second device receives the ranging poll frame in the first frequency band, and transmits the reply frame of the ranging poll frame in the first frequency band; or, the second device receives the ranging poll frame in the second frequency band, and transmits the reply frame of the ranging poll frame in the second frequency band; or, the second device receives the ranging poll frame in the first frequency band, and transmits the reply frame of the ranging poll frame in the second frequency band; or, the second device receives the ranging poll frame in the second frequency band, and transmits the reply frame of the ranging poll frame in the first frequency band.

[0174] As a possible implementation 2, the second device receives the control frame in the first frequency band, and transmits the PPDU for ranging in the second frequency band includes:

[0175] The second device receives the ranging probe trigger frame in the first frequency band, and transmits the second PPDU for ranging in the second frequency band.

[0176] With reference to the implementation 2 in the fourth aspect, in a possible implementation, the method further includes:

[0177] The second device receives the ranging NDPA frame in the second frequency band, and receives the first PPDU for ranging in the second frequency band; or, the second device receives the ranging NDPA frame in the first frequency band, and receives the first PPDU for ranging in the first frequency band; or, the second device receives the ranging NDPA frame in the first frequency band, and receives the first PPDU for ranging in the second frequency band; or, the second device receives the ranging NDPA frame in the second frequency band, and receives the first PPDU for ranging in the first frequency band.

[0178] With reference to the implementation 2 in the fourth aspect, in a possible implementation, the method further includes:

[0179] 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.

[0180] With reference to the implementation 2 in the fourth aspect, in a possible implementation, the method further includes:

[0181] The second device transmits the ranging initiation-end-to-ranging response-end report frame in the first frequency band; or, the second device transmits the ranging initiation-end-to-ranging response-end report frame in the second frequency band.

[0182] With reference to the implementation 2 in the fourth aspect, in a possible implementation, the method further includes:

[0183] 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.

[0184] As a possible implementation 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:

[0185] The second device receives a ranging poll frame in the first frequency band, 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, 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.

[0186] With reference to the implementation 3 in the fourth aspect, in a possible implementation, the method further includes: the second device receives a ranging NDPA frame in the second frequency band.

[0187] With reference to the implementation 3 in the fourth aspect, in a possible implementation, the method further includes: the second device receives a ranging probe trigger frame in the second frequency band.

[0188] With reference to the thirteenth aspect as above, in a possible implementation of the thirteenth aspect, the method further includes:

[0189] The second device receives a ranging response-to-initiator report frame in the first frequency band; or, the second device receives a ranging response-to-initiator report frame in the second frequency band.

[0190] With reference to the thirteenth aspect as above, in a possible implementation of the thirteenth aspect, the method further includes:

[0191] The second device transmits the ranging initiator-to-response report frame in the first frequency band; or, the second device transmits the ranging initiator-to-response report frame in the second frequency band.

[0192] As a possible implementation of the fourth aspect, the second device receives a control frame in the first frequency band, and transmits the PPDU for ranging in the second frequency band includes:

[0193] The second device receives a ranging response-to-initiator report frame in the first frequency band after receiving the first PPDU for ranging in the second frequency band; or, the second device receives a ranging response-to-initiator report frame in the first frequency band after transmitting the second PPDU for ranging in the second frequency band; or, the second device receives a ranging response-to-initiator report frame in the first frequency band after receiving the first PPDU for ranging in the second frequency band and transmitting the second PPDU for ranging in the second frequency band.

[0194] With reference to the thirteenth aspect as above, in a possible implementation of the thirteenth aspect, the method further includes:

[0195] 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.

[0196] With reference to the thirteenth aspect as above, in a possible implementation of the thirteenth aspect, the method further includes:

[0197] 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.

[0198] With reference to the thirteenth aspect as above, in a possible implementation of the thirteenth aspect, the method further includes:

[0199] The second device transmits a ranging initiator-to-ranger report frame in the first frequency band; or the second device transmits a ranging initiator-to-ranger report frame in the second frequency band.

[0200] With reference to the implementation 4 in the fourth aspect, in a possible implementation method, the method further includes:

[0201] 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.

[0202] With reference to the implementation 4 in the fourth aspect, in a possible implementation method, the method further includes:

[0203] The second device transmits a reply frame of the ranging poll frame in the first frequency band; or the second device transmits a reply frame of the ranging poll frame in the second frequency band.

[0204] 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:

[0205] 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 transmits 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 transmits a second PPDU for ranging in the second frequency band.

[0206] With reference to the implementation 5 in the fourth aspect, in a possible implementation method, the method further includes:

[0207] The sensing responder transmits a ranging responder-to-initiator report frame in the first frequency band; or the sensing responder transmits a ranging responder-to-initiator report frame in the second frequency band.

[0208] With reference to the implementation 5 in the fourth aspect, in a possible implementation method, the method further includes:

[0209] The sensing responder receives a ranging initiator-to-ranger report frame in the first frequency band; or the sensing responder receives a ranging initiator-to-ranger report frame in the second frequency band.

[0210] 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.

[0211] In a fifth aspect, an embodiment of the present application provides a perception initiator, configured to perform the method in the first aspect or any possible implementation manner. The perception initiator comprises a module configured to perform the method in the first aspect or any possible implementation manner.

[0212] In a sixth aspect, an embodiment of the present application provides a perception responder, configured to perform the method in the second aspect or any possible implementation manner. The perception responder comprises a module configured to perform the method in the second aspect or any possible implementation manner.

[0213] In a seventh aspect, an embodiment of the present application provides a ranging responder, configured to perform the method in the third aspect or any possible implementation manner. The perception initiator comprises a module configured to perform the method in the third aspect or any possible implementation manner.

[0214] In an eighth aspect, an embodiment of the present application provides a ranging initiator, configured to perform the method in the fourth aspect or any possible implementation manner. The perception responder comprises a module configured to perform the method in the fourth aspect or any possible implementation manner.

[0215] In a ninth aspect, an embodiment of the present application provides a perception initiator, comprising a processor configured to perform the method in the first aspect or any possible implementation manner. The processor is configured to execute a program stored in a memory, and when the program is executed, the method in the first aspect or any possible implementation manner is performed.

[0216] In a possible implementation manner, the memory is located outside the perception initiator.

[0217] In a possible implementation manner, the memory is located inside the perception initiator.

[0218] In the embodiments 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.

[0219] In a possible implementation manner, the perception initiator further comprises a transceiver configured to receive information or send information.

[0220] In a tenth aspect, an embodiment of the present application provides a perception responder, comprising a processor configured to perform the method in the second aspect or any possible implementation manner. The processor is configured to execute a program stored in a memory, and when the program is executed, the method in the second aspect or any possible implementation manner is performed.

[0221] In a possible implementation manner, the memory is located outside the perception responder.

[0222] In a possible implementation, the memory is located in the above-mentioned perception response end.

[0223] In the embodiments 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.

[0224] In a possible implementation, the perception response end further includes a transceiver, which is configured to receive information or send information.

[0225] In the eleventh aspect, the embodiments of the present application provide a first device, which includes a processor configured to execute the method 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 in the third aspect or any possible implementation is executed.

[0226] In a possible implementation, the memory is located outside the above-mentioned first device.

[0227] In a possible implementation, the memory is located in the above-mentioned first device.

[0228] In the embodiments 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.

[0229] In a possible implementation, the first device further includes a transceiver, which is configured to receive information or send information.

[0230] In the twelfth aspect, the embodiments of the present application provide a second device, which includes a processor configured to execute the method in the fourth 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 in the fourth aspect or any possible implementation is executed.

[0231] In a possible implementation, the memory is located outside the above-mentioned second device.

[0232] In a possible implementation, the memory is located in the above-mentioned second device.

[0233] In the embodiments 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.

[0234] In a possible implementation, the second device further includes a transceiver, which is configured to receive information or send information.

[0235] In a thirteenth aspect, an embodiment of the present application provides a perception initiator, comprising 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 perform the method in the first aspect or any possible implementation manner thereof.

[0236] In a fourteenth aspect, an embodiment of the present application provides a perception responder, comprising 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 perform the method in the second aspect or any possible implementation manner thereof.

[0237] In a fifteenth aspect, an embodiment of the present application provides a first device, comprising 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 perform the method in the third aspect or any possible implementation manner thereof.

[0238] In a sixteenth aspect, an embodiment of the present application provides a second device, comprising 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 perform the method in the fourth aspect or any possible implementation manner thereof.

[0239] In a seventeenth aspect, an embodiment of the present application provides a computer readable storage medium, configured to store a computer program, which when executed on a computer, causes the method in any one of the first aspect to the fourth aspect or any possible implementation manner thereof to be performed.

[0240] In an eighteenth aspect, an embodiment of the present application provides a computer program product, which when executed on a computer, causes the method in any one of the first aspect to the fourth aspect or any possible implementation manner thereof to be performed.

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

[0242] In a twentieth aspect, an embodiment of the present application provides a communication system, comprising a perception initiator and a perception responder, wherein the perception initiator is configured to perform the method in the first aspect or any possible implementation manner thereof, and the perception responder is configured to perform the method in the second aspect or any possible implementation manner thereof.

[0243] In a twenty-first aspect, an embodiment of the present application provides a communication system, the communication system comprising a second device and a first device, wherein the first device is configured to perform the method of the third aspect or any possible implementation of the third aspect, and the second device is configured to perform the method of the fourth aspect or any possible implementation of the fourth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0244] Figure 1 is a schematic diagram of an architecture of a communication system provided by an embodiment of the present application;

[0245] Figures 2a to 2d is a schematic diagram of a format of a sensing PPDU provided by an embodiment of the present application;

[0246] Figure 3 is a schematic diagram of a stage of a sensing procedure provided by an embodiment of the present application;

[0247] Figure 4 is a schematic diagram of a procedure of TB sensing measurement interaction provided by an embodiment of the present application;

[0248] Figure 5 is a schematic diagram of a procedure of TB sensing measurement interaction provided by an embodiment of the present application;

[0249] Figure 6 is a schematic diagram of another procedure of TB sensing measurement interaction provided by an embodiment of the present application;

[0250] Figure 7 is a schematic diagram of still another procedure of TB sensing measurement interaction provided by an embodiment of the present application;

[0251] Figure 8 is a schematic diagram of yet another procedure of TB sensing measurement interaction provided by an embodiment of the present application;

[0252] Figure 9 is a schematic diagram of still another procedure of TB sensing measurement interaction provided by an embodiment of the present application;

[0253] Figure 10 is a schematic diagram of a procedure of non-TB sensing measurement interaction provided by an embodiment of the present application;

[0254] Figure 11 is a schematic diagram of a procedure of non-TB sensing measurement interaction provided by an embodiment of the present application;

[0255] Figure 12 is a schematic diagram of another procedure of non-TB sensing measurement interaction provided by an embodiment of the present application;

[0256] Figure 13 is a schematic diagram of still another procedure of non-TB sensing measurement interaction provided by an embodiment of the present application;

[0257] Figures 14a to 14c is a flowchart of the perception measurement interaction provided by an embodiment of the present application;

[0258] Figure 15 is a schematic diagram of the SBP flow provided by an embodiment of the present application;

[0259] Figure 16a and Figure 16b is a schematic diagram of the SBP flow provided by an embodiment of the present application in combination with the perception measurement interaction shown in Figure 5 ;

[0260] Figure 17a and Figure 17b is a schematic diagram of the SBP flow provided by an embodiment of the present application in combination with the perception measurement interaction shown in Figure 6 ;

[0261] Figure 18a and Figure 18b is a schematic diagram of the SBP flow provided by an embodiment of the present application in combination with the perception measurement interaction shown in Figure 7 ;

[0262] Figure 19a and Figure 19b is a schematic diagram of the SBP flow provided by an embodiment of the present application in combination with the perception measurement interaction shown in Figure 8 ;

[0263] Figure 20a and Figure 20b is a schematic diagram of the SBP flow provided by an embodiment of the present application in combination with the perception measurement interaction shown in Figure 9 ;

[0264] Figure 21 is a schematic diagram of the TB ranging measurement interaction provided by an embodiment of the present application;

[0265] Figure 22 is a schematic diagram of the TB ranging measurement interaction provided by an embodiment of the present application;

[0266] Figure 23 is a schematic diagram of the TB ranging measurement interaction provided by an embodiment of the present application;

[0267] Figure 24 is a schematic diagram of the TB ranging measurement interaction provided by an embodiment of the present application;

[0268] Figure 25 is a schematic diagram of the TB ranging measurement interaction provided by an embodiment of the present application;

[0269] Figure 26is a flowchart of non-TB ranging measurement interaction provided by an embodiment of the present application;

[0270] Figure 27 is a flowchart of non-TB ranging measurement interaction provided by an embodiment of the present application;

[0271] Figure 28 is a flowchart of non-TB ranging measurement interaction provided by an embodiment of the present application;

[0272] Figure 29 is a flowchart of non-TB ranging measurement interaction provided by an embodiment of the present application;

[0273] Figure 30 is a structural schematic diagram of a communication device provided by an embodiment of the present application;

[0274] Figure 31 is a structural schematic diagram of a communication device provided by an embodiment of the present application;

[0275] Figure 32 is a structural schematic diagram of a communication device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0276] In order to facilitate understanding of the technical solutions of the present application, the present application will be further described below in conjunction with the drawings.

[0277] The terms "first" and "second" and the like in the specification of the present application, claims, and drawings are only used to distinguish different objects, and are not used to describe a specific 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 device, etc. 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, etc., or can optionally further include other steps or units inherent to the process, method, product or device, etc.

[0278] 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.

[0279] 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".

[0280] 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.

[0281] 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.

[0282] In the present application, "transmission" includes sending or receiving.

[0283] In the present application, "sending" and "receiving" represent 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 includes 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 includes 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 between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules or hardware modules within a device through a bus, wire or interface.

[0284] The following describes the communication system related to the present application.

[0285] The technical solutions provided in the embodiments of the present application can be applied to a wireless local area network (WLAN) system, such as Wi-Fi or ambient power (AMP). The method provided in the embodiments of the present application can be applicable to IEEE 802.11 series protocols, for example, 802.11a / b / g protocols, 802.11bf protocols, 802.11az protocols, 802.11bk protocols, 802.11n protocols, 802.11ac protocols, 802.11ax protocols, 802.11be protocols, 802.11bn protocols, or next-generation protocols, and the like. For example, 802.11ad protocols, 802.11ay or next-generation protocols, and the like, which are not listed one by one. The technical solutions provided in the embodiments of the present application can also be applied to a wireless personal area network (WPAN) 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 MMW (IMMW). The method provided in the embodiments of the present application can be applicable to IEEE 802.15 series protocols, for example, 802.15.4a protocols, 802.15.4z protocols, or 802.15.4ab protocols, or future generations of UWB WPAN protocols, and the like, which are not listed one by one. The technical solutions provided in the embodiments of the present application can also be applied to a communication system, for example, can be an internet of things (IoT) system, a vehicle to X (V2X) system, a narrow band IoT (NB-IoT) system, a long term evolution (LTE) system, a 5th-generation (5G) communication system, and a new communication system to be appeared in future communication development, and the like.

[0286] The WLAN system can provide high-rate and low-latency transmission. As the WLAN application scenarios evolve, the WLAN system will be applied to more scenarios or industries, such as the Internet of Things industry, the Internet of Vehicles industry, the banking industry, enterprise offices, stadiums, exhibition halls, concert halls, hotel rooms, dormitories, wards, classrooms, supermarkets, squares, streets, production workshops, and warehouses. Of course, the devices (such as access points or stations) that support WLAN communication or sensing 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, display screens, televisions, sound systems, refrigerators, washing machines, and the like), nodes in the Internet of Things, entertainment terminals (such as augmented reality (AR) and virtual reality (VR) wearable devices), smart devices in smart offices (such as printers, projectors, amplifiers, sound systems, and the like), Internet of Vehicles devices in the Internet of Vehicles, infrastructure in daily life scenarios (such as vending machines, self-service navigation stations in supermarkets, self-service checkout devices, and self-service ordering machines), and devices in large sports and music venues.

[0287] Although the embodiments of the present application mainly take WLAN as an example, especially the network applied to the IEEE 802.11 series standard. The various aspects of the embodiments of the present application can be extended to other networks using various standards or protocols. For example, Bluetooth, high performance radio LAN (HIPERLAN) (a wireless standard similar to the IEEE 802.11 standard, mainly used in Europe), and wide area network (WAN) or other now known or later developed networks.

[0288] In a possible implementation, the method provided by the embodiments of the present application can be implemented by a communication device in a communication system. For example, the communication device can be an access point (AP) or a station (STA).

[0289] 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.

[0290] A STA is a device with wireless communication function, which supports communication or sensing using WLAN protocol, and has the ability to communicate or sense with other non-AP STAs or access points in a 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 sense with an AP and then communicate with a WLAN. The device with wireless communication function can be a whole device, or a chip or processing system or functional module installed in a whole device. The device in which the chip or processing system or functional module is installed can implement the methods and functions of the embodiments of the present application under the control of the chip or 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 supporting Wi-Fi communication function, a tablet computer supporting Wi-Fi communication function, a set-top box supporting Wi-Fi communication function, a smart television supporting Wi-Fi communication function, a smart wearable device supporting Wi-Fi communication function, a vehicle-mounted communication device supporting Wi-Fi communication function, and a computer supporting Wi-Fi communication function, etc. Of course, a STA can also be a chip or processing system or module in the above various forms of devices, thereby implementing the methods and functions of the embodiments of the present application. Of course, a STA can also include a non-AP STA or a co-located STA belonging to a multi-link device (MLD), etc.

[0291] For example, the embodiments of the present application can be applied to the scenarios of communication or sensing between an AP and a STA, between an AP and an AP, or between a STA and a STA in a WLAN, which are not limited by the embodiments of the present application. Optionally, an AP can communicate or sense with a single STA, or an AP can simultaneously communicate or sense with multiple STAs. Specifically, the communication or sensing between an AP and multiple STAs can be divided into downlink transmission in which an AP sends signals to multiple STAs simultaneously, and uplink transmission in which multiple STAs send signals to an AP. The communication or sensing between an AP and a STA, between an AP and an AP, or between a STA and a STA can support a WLAN communication protocol, which can include IEEE 802.11 series of protocols, such as 802.11n / 802.11ac / 802.11ax / 802.11be / 802.11bn protocols, and of course also applies to protocols after 802.11bn.

[0292] Figure 1Schematic diagram of the architecture of a 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 FIG shows an access point such as AP1 and three stations such as STA1, STA2 and STA3. For example, the method provided in the embodiment of the present application can be applied to data communication between an AP and one or more STAs (such as Figure 1 The communication between AP1 and STA1 shown, or the communication between AP1 and STA1, STA2), or the communication between AP and AP, or the communication between STA and STA (as shown in FIG. Figure 1 The method provided in the embodiments of the present application may be applicable to, but not limited to, single-user uplink / downlink transmission, multi-user uplink / downlink transmission, vehicle-to-everything (V2X, where X can represent anything), and device-to-device (D2D). For example, V2X may include vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), or vehicle-to-network (V2N) communications.

[0293] Understandable, Figure 1 The STA is a mobile phone and the AP is a router as an example, which does not limit the types of AP and STA in the embodiments of the present application. Figure 1 Only one AP and three STAs are shown as an example, but the number of APs or STAs can be more or less, which is not limited in the embodiments of the present application.

[0294] The following describes the method involved in this application.

[0295] The sensing procedure of low frequency is similar to that of high frequency. Generally, the bandwidth of high frequency is much larger than that of low frequency, and the sensing procedure of high frequency is independent of that of low frequency, that is, each of them has an independent and complete sensing procedure. For high frequency, the bandwidth is large, for example, the bandwidth of a channel can be 2.16 GHz (only an example), and a large bandwidth can provide better sensing performance, such as better distance resolution, higher accuracy, etc. In the standard of high frequency, the transmission bandwidth of PPDU (or signal, or OFDM symbol, etc.) can be greater than or equal to 320 MHz. However, high frequency has large attenuation, and generally uses directional transmission or reception of signals, which is easily affected by occlusion or beam misalignment, etc., which will affect the signaling interaction between high frequencies for sensing. When the signaling interaction in the sensing measurement interaction is affected, the sensing measurement interaction cannot be performed, and the measurement cannot be completed. Unlike high frequency, the bandwidth of low frequency is relatively small (for example, the maximum bandwidth of PPDU in the 802.11be protocol can be 320 MHz), and the sensing performance is relatively limited. However, low frequency generally uses omnidirectional transmission, and the possibility of being occluded is small, so various frames in the sensing measurement interaction can be effectively transmitted. The related description of sensing herein also applies to ranging, and the ranging is not described here.

[0296] Considering that future devices can have both high frequency and low frequency communication or sensing capabilities, etc., the present application provides a sensing communication method, a ranging communication method, an apparatus and a system.

[0297] In the present application, low frequency can assist high frequency to complete sensing measurement or ranging, or high frequency and low frequency cooperate to complete sensing measurement or ranging, and the cooperation between high frequency and low frequency can be more close, so that the respective advantages of high and low frequencies can be effectively utilized, and the completion of sensing measurement or ranging interaction can be better supported, and the sensing performance or ranging performance can be improved. For example, the present application can improve the robustness of the sensing procedure or the ranging procedure, and can fully utilize the large bandwidth advantage of high frequency to improve the accuracy of sensing or ranging. In addition, the present application can also support more flexible high and low frequency sensing or ranging applications.

[0298] The names related to the present application are described below.

[0299] 1, High frequency and low frequency

[0300] In this application, high frequency and low frequency are relative. For example, the frequency of low frequency can be lower than a first threshold, such as lower than 7 GHz (sub-7 GHz), or the frequency of low frequency can include 2.4 GHz-7.25 GHz (also can be called sub-7 GHz). The frequency of high frequency can be higher than a second threshold, such as higher than 42 GHz, or the frequency of high frequency can include 42 GHz-71 GHz. The second threshold can be greater than the first threshold. The specific value of the first threshold and the second threshold is not limited in this application. Of course, with the development of standards, other frequencies of high frequency and low frequency can appear in the future, which is not limited in this application.

[0301] In this application, the second frequency band corresponds to high frequency (HF), or the frequency of high frequency shown below is the same as the frequency of the second frequency band, that is, the second frequency band can be replaced by high frequency. The first frequency band can correspond to low frequency (LF), or the frequency of low frequency shown below can be the same as the frequency of the first frequency band, that is, the first frequency band can be replaced by low frequency.

[0302] 2, sensing PPDU and ranging PPDU

[0303] For the sensing communication method, the first PPDU and the second PPDU are both PPDUs for sensing. The first PPDU can be a PPDU for sensing in the NDPA probe stage, and the second PPDU is a PPDU for sensing in the TF probe stage. For example, the first PPDU can include SI2SR NDP, etc., and the second PPDU can include SR2SI NDP or SR2SR NDP, etc.

[0304] For the ranging communication method, the first PPDU and the second PPDU are both PPDUs for ranging. The first PPDU can be a PPDU for ranging in the NDPA probe stage, and the second PPDU is a PPDU for ranging in the TF probe stage. For example, the first PPDU can include R2I NDP, etc., and the second PPDU can include I2R NDP, etc.

[0305] The first PPDU and the second PPDU listed above are only examples, and the data field can also be included in the first PPDU and the second PPDU, for example, the length of the data field can be less than a length threshold. The specific value of the length threshold is not limited in this application.

[0306] 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. For the above-mentioned distinction manner, the present application is not limited.

[0307] Figures 2a to 2d is a format diagram of the sensing PPDU provided by an embodiment of the present application. Figures 2a to 2d An example of a format diagram of the sensing PPDU is shown. Figures 2a to 2d The sensing PPDU shown can also be applied to a ranging communication method, that is Figures 2a to 2b The PPDU shown can also be a ranging PPDU. Figure 2a The sensing PPDU shown is exemplified by a high efficiency (HE) ranging NDP, Figure 2b The sensing PPDU shown is exemplified by an HE based-trigger (TB) ranging NDP, Figure 2c The sensing PPDU shown is exemplified by an extremely high throughtput (EHT) ranging NDP, Figure 2d The sensing PPDU shown is exemplified by an EHT TB ranging NDP. Figure 2c The 8 μs per EHT-LTF shown can include 8 μs per EHT-LTF symbol using 2 × EHT-LTF (8 us per EHT LTF symbol using 2 × EHT-LTF). Figures 2a to 2dThe descriptions of the illustrated fields can refer to relevant standards or protocols, which are not 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), extremely high throughtput signal (EHT-SIG) field, or packet extension (PE). The descriptions of the sensing PPDU here also apply to the ranging PPDU.

[0308] Figures 2a to 2d The illustrated sensing PPDU (or ranging PPDU) is only an example, and other formats of sensing PPDU (or ranging PPDU) may also appear later as the standard evolves, which is not limited by the embodiments of the present application. The sensing PPDU (or ranging PPDU) transmitted on the high frequency may or may not have the same format as the sensing PPDU (or ranging PPDU) transmitted on the low frequency, which is not limited by the present application. Figures 2a to 2d The lengths of the fields in the illustrated NDP are only examples and should not be construed as limiting the embodiments of the present application.

[0309] The transmission mode in the sensing communication method or the ranging communication method involved in the present application is described below.

[0310] In at least one stage of the sensing measurement interaction process (or the ranging measurement interaction process): the control frame is transmitted on the low frequency, and the sensing PPDU is transmitted on the high frequency.

[0311] Alternatively, in at least one stage of the sensing measurement interaction process (or the ranging measurement interaction process): the control frame and the sensing PPDU are both transmitted on the high frequency.

[0312] Alternatively, in at least one stage of the sensing measurement interaction process (or the ranging measurement interaction process): some control frames are transmitted on the low frequency, and other control frames are transmitted on the high frequency. For example, the sensing PPDU can be transmitted on the high frequency.

[0313] The description herein regarding the control frame and the sensing PPDU also applies to the SBP procedure, e.g., in at least one stage of the SBP procedure: the control frame is transmitted via the low frequency, the sensing PPDU is transmitted via the high frequency, or both the control frame and the sensing PPDU are transmitted via the high frequency, etc., which will not be listed one by one herein.

[0314] Generally, at least one of the format or the content of the control frame can be different in different stages. The description herein regarding the control frame and the sensing PPDU also applies to the ranging communication method, which will not be listed one by one herein.

[0315] The “transmission” shown herein can include sending or receiving. For example, the transmission of the control frame via the low frequency can include that the sending end of the control frame sends the control frame via the low frequency, or the receiving end of the control frame receives the control frame via the low frequency. For another example, the transmission of the sensing PPDU via the high frequency can include that the sending end of the sensing PPDU sends the sensing PPDU via the high frequency, or the receiving end of the sensing PPDU receives the sensing PPDU via the high frequency. The description regarding the transmission will not be listed one by one herein.

[0316] Hereinafter, 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 taken as examples for description. 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 the sensing initiating end, etc. For another example, for the ranging communication method, the sending end of the control frame can be the ranging responding end or the ranging initiating end. 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 the sensing sending end, as shown below Figures 5 to 9 , the sending end of the first PPDU (i.e., the sensing sending end) can also be the sensing initiating end. The receiving end of the first PPDU can also be referred to as the sensing receiving end, as shown below Figures 5 to 9 , the receiving end of the first PPDU (i.e., the sensing receiving end) can also be the sensing responding end. For example, for the sensing communication method, the sending end of the second PPDU can also be referred to as the sensing sending end, as shown below Figures 5 to 9 , the sending end of the second PPDU (i.e., the sensing sending end) can also be the sensing responding end. The receiving end of the second PPDU can also be referred to as the sensing receiving end, as shown below Figures 5 to 9 , the receiving end of the second PPDU (i.e., the sensing receiving end) can also be the sensing initiating end. The description regarding the sending end and the receiving end will not be listed one by one herein.

[0317] In the present application, when the control frame is transmitted via the low frequency, the following modes can be used:

[0318] Manner 1, the receiving address of the control frame is a broadcast address. The sending end of the control frame can send the control frame in an omnidirectional manner. 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 simultaneously send M control frames to N receiving ends. The control frame can include information (such as measurement resources) allocated by the sending end of the control frame to each of the N receiving ends. For example, M = 1.

[0319] 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. For the specific product form of the sending end and the receiving end of the control frame, details are not described here.

[0320] Manner 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 in an omnidirectional manner, 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. One time instant can correspond to one control frame. For example, M = N. The different time instants can include different starting time instants, different durations, or different ending time instants.

[0321] In this application, since the signal transmitted at low frequency is less affected by shielding, transmitting the control frame at low frequency can reduce the influence of the control frame by environmental factors and improve the reliability of the control frame transmission.

[0322] In the embodiments of the present application, the first PPDU and the second PPDU can be transmitted at low frequency in the following manners:

[0323] Manner 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 in an omnidirectional manner. 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.

[0324] Manner 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 in an omnidirectional manner. 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.

[0325] In the present application, the control frame can be transmitted in the following manners when transmitted at high frequency:

[0326] Manner 5, the receiving address of the control frame is a broadcast address. The sending end of the control frame can send M control frames, each of which includes information allocated by the sensing initiating end to each of the N sensing responding ends. For example, M=N. Alternatively, M>N, or M<N. The sending end of the control frame can send the above-mentioned multiple control frames in an omnidirectional manner, or can also send the above-mentioned multiple control frames in a directional manner. Directional sending of multiple control frames can also be understood as that the sending direction of each control frame is different.

[0327] Manner 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 in a directional manner. 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.

[0328] As an example, the control frame can include information allocated by the sending end of the control frame to each of the N receiving ends. As another example, the control frame can include information allocated by the sending end of the control frame to one receiving end. Thus, the control frames in different directions can correspond to different receiving ends.

[0329] The above-mentioned transmission manners of the control frame can also be applicable to the reply frame of the control frame. The transmission manner of the reply frame will not be described here.

[0330] In this application, the first PPDU or the second PPDU can have the following manners when transmitted at a high frequency:

[0331] Manner 7, for the first PPDU, the sending end (including the sensing sending end or the ranging sending end) can send the first PPDU in different directions.

[0332] In a manner 8, the N transmitters can transmit the second PPDU in a SU manner. The SU manner means that the N transmitters can transmit the second PPDU in a time-division manner at different time instants (or time periods). Alternatively, the N transmitters can transmit the second PPDU in a MU manner. The MU manner means that the N transmitters can transmit the second PPDU simultaneously, such as an orthogonal frequency division multiple access (OFDMA) transmission manner and / or a multi-user multiple-input multiple-output (MU-MIMO) transmission manner. Although the N transmitters transmit the second PPDU simultaneously, the N transmitters can transmit the second PPDU on different transmission resources, so as to reduce or avoid interference as much as possible. In this application, the N transmitters transmitting the second PPDU simultaneously can be understood as the N transmitters transmitting the second PPDU in the same time period respectively. The specific duration of the time period is not limited in this application.

[0333] For the sake of subsequent reference, different numbers are used in this application to distinguish different manners or examples, but this should not be understood as a limitation on the embodiments of this application. The transmission manners shown in the above manners 1 to 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.

[0334] For the sensing communication method, the foregoing control frame can include, but is not limited to, a sensing poll trigger frame (or a sensing poll frame), a sensing NDPA frame, a sensing SR2SI probe 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 probe trigger frame corresponds to a second PPDU. The control frame, the reply frame, or the sensing PPDU shown herein is exemplified by the TB sensing measurement interaction shown in Figure 4 the Non-TB sensing measurement interaction shown in Figure 10 the sensing measurement interaction shown in Figures 14a to 20b With the development of standards, other types of control frames for sensing can also appear in the future, which are not limited in this application.

[0335] For the ranging communication method, the aforementioned control frame can include, but is not limited to, a ranging poll trigger frame (or a ranging poll frame), a ranging NDPA frame, a sounding ranging trigger frame, etc. As for the control frame or the ranging PPDU involved in the ranging communication method, they are not listed one by one here.

[0336] The sensing communication method shown in the present application is described in detail below.

[0337] Some devices involved in the sensing communication method of the embodiments of the present application are described below.

[0338] Sensing initiator: a device initiating a sensing behavior; or a device initiating a sensing measurement session; or a device sending a sensing measurement request frame. The sensing initiator can send the sensing measurement request frame at low frequency, or send the sensing measurement request frame at high frequency. The sensing initiator can be a sensing transmitter or a sensing receiver.

[0339] Sensing responder: a device participating in sensing in response to the sensing behavior initiated by the sensing initiator. 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 low frequency, or reply with the sensing measurement response frame at 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.

[0340] Sensing transmitter: a device sending a sensing PPDU. The sensing transmitter can send the sensing PPDU at low frequency, or send the sensing PPDU at high frequency.

[0341] Sensing receiver: a device receiving a sensing PPDU. The sensing receiver can receive the sensing PPDU at low frequency, or receive the sensing PPDU at high frequency.

[0342] Figure 3 is a stage diagram of the sensing process provided by the embodiments of the present application. As Figure 3As shown, the stages of the sensing procedure can include a sensing capabilities exchange stage, a sensing measurement session establishment stage, a sensing measurement exchange stage, and a sensing measurement session termination stage.

[0343] A capabilities exchange between devices can be performed between different devices, such as Figure 3 The sensing capabilities exchange stage. 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, in the sensing capabilities exchange stage, the devices that exchange capabilities are not yet distinguished as sensing initiators or sensing responders. The sensing initiator or sensing responder can be distinguished after the capabilities exchange is completed, i.e., the device that sends the sensing measurement request frame can be the sensing initiator.

[0344] After the sensing devices complete the capabilities exchange, when a sensing measurement session needs to be initiated, the sensing initiator can initiate the establishment of the sensing measurement session by sending a sensing measurement request frame, and the sensing responder receives the sensing measurement request and replies with a sensing measurement response frame. Through the sensing measurement session establishment stage, the sensing initiator can assign different roles and parameters to different sensing responders for different sensing tasks, and complete the establishment of the sensing measurement session. In this sensing measurement session establishment stage, the relevant parameters in sensing are mainly negotiated, 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, etc.

[0345] After the establishment of the sensing measurement session, the sensing initiator can initiate one or more sensing measurement instances. That is, one or more sensing measurement instances can be included in the sensing measurement session. 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 the AP (e.g., the AP as the sensing initiator), and the non-TB sensing measurement instance is generally initiated by the STA (e.g., the STA as the sensing initiator).

[0346] 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 stage. Figure 3

[0347] Figure 3 The sensing procedure shown can correspond to different sensing tasks. For example, the sensing initiator can initiate the sensing procedure for a fall detection task, and in the sensing measurement instance stage, the sensing initiator (or the sensing responder) can detect information of the target by sending a plurality of sensing PPDUs. For another example, the sensing initiator can initiate the sensing procedure for a breathing detection task, and in the sensing measurement instance stage, the sensing initiator (or the sensing responder) can also detect information of the target by sending a plurality of sensing PPDUs. The information of the target listed herein can include motion information of the target, etc. The target detected by the sensing procedure can be in a motion state or a stationary state, which is not limited by the embodiments of the present application.

[0348] Figure 3 The sensing procedure shown can also be applicable to a ranging procedure. For example, the ranging initiator and the ranging responder can exchange their respective capabilities in the ranging capability exchange stage, and then assign roles and parameters for different sensing responders in the ranging measurement session stage to complete the establishment of the ranging measurement session. After the ranging measurement session, the ranging initiator can initiate one or more ranging measurement instances. The description of the ranging procedure can be referred to the sensing procedure, and the present application will not be repeated.

[0349] The sensing measurement instance procedure in the sensing measurement session is described in detail below.

[0350] Figure 4 is a flow diagram of the TB sensing measurement instance provided by the embodiments of the present application. As shown in Figure 4 ​As shown, one TB-aware measurement interaction can include at least one of the following four stages: a polling stage, an NDPA sounding stage, a trigger frame (TF) sounding stage, or a reporting stage. For example, one TB-aware measurement interaction can include one stage, which can be the TF sounding stage. For another example, one TB-aware measurement interaction can include the NDPA sounding stage and the TF sounding stage. For another example, one TB-aware measurement interaction can include the polling stage and the TF sounding stage. For another example, one TB-aware measurement interaction can include the polling stage, the NDPA sounding stage, and the reporting stage. For another example, one TB-aware measurement interaction can include the TF sounding stage and the reporting stage. For another example, one TB-aware measurement interaction can include the NDPA sounding stage and the reporting stage. For another example, one TB-aware measurement interaction can include the polling stage, the NDPA sounding stage, the TF sounding stage, and the reporting stage (as shown below), and the like, which are not listed one by one here. The explanations about the stages provided below apply to each method provided below, which are not listed one by one here. Although the polling stage, the NDPA sounding stage, the TF sounding stage, and the reporting stage are shown below, it should not be construed as a limitation of the present application. Each stage is described in detail below: Figure 4 The explanations about the stages provided below apply to each method provided below, which are not listed one by one here. Although the polling stage, the NDPA sounding stage, the TF sounding stage, and the reporting stage are shown below, it should not be construed as a limitation of the present application. Each stage is described in detail below:

[0351] (1) Polling Stage

[0352] In the TB-aware measurement interaction, the AP as the sensing initiator can send a sensing poll trigger frame to the STAs that want to be invited to participate in the sensing measurement interaction in the polling stage, inviting each STA to participate in the sensing measurement interaction. The STAs participating in the sensing measurement interaction can reply to the CTS-to-self frame on the resource allocated by the AP, thereby confirming 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 below, 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. Figure 4

[0353] 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. ​

[0354] In embodiments of the present application, the name of the sensing polling trigger frame is only an example, and the sensing polling trigger frame can also be referred to as a sensing polling frame or a polling trigger frame or a polling frame (or simply a poll), and the present application does not make any limitation. For the sake of brevity, the following will be described by taking the polling frame as an example.

[0355] (2) NDPA detection phase

[0356] In the NDPA detection phase, the sensing initiator sends a sensing NDPA frame to one or more sensing responders that confirm to participate in the NDPA detection, and sends an SI2SR NDP after a predetermined interval duration (for example, a short inter frame space (SIFS)). The sensing responder receives 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 detection 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 responder. 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.

[0357] The specific duration of the predetermined interval duration is not limited in embodiments of the present application, and the SIFS is only an example. In embodiments of the present application, the name of the sensing NDAP frame is only an example, and the sensing NDPA frame can also be referred to as an NDPA frame (or simply an NDPA), and the present application does not make any limitation. For the sake of brevity, the following will be described by taking the NDPA frame as an example.

[0358] (3) TF detection phase

[0359] 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 responder sends an SR2SI NDP 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 responder. After receiving the sensing SR2SI detection trigger frame, the sensing responder can send the SR2SI NDP according to the allocated measurement resources. The measurement resources can include, but are not limited to, spatial streams or space-time streams, etc.

[0360] In case of a large number of sensing response ends, e.g., the number of sensing response ends is greater than a number threshold, the sensing initiation end can initiate multiple TF sounding stages. Exemplarily, the number threshold can be determined by the maximum number of spatial streams that can be scheduled by the sensing initiation end. That is, in case of a large number of sensing response ends, the sensing initiation end can not be able to complete the sensing measurement through one TF sounding stage, and thus the sensing initiation end can initiate multiple TF sounding stages.

[0361] In the embodiments of the present application, the name of the sensing SR2SI sounding trigger frame is only an example, and the sensing SR2SI sounding trigger frame can also be referred to as a sounding trigger frame (or simply a sounding trigger) or a sensing sounding trigger frame, and the like, which is not limited in the embodiments of the present application. For the sake of brevity, the sounding trigger frame is taken as an example in the following description.

[0362] (4) Reporting stage

[0363] In the reporting stage, the sensing initiation end sends a sensing report trigger frame to one or more sensing response ends that confirm to participate in the reporting stage, and the sensing response end sends a sensing measurement report frame according to the sensing report trigger frame. That is, the sensing report trigger frame can be used to allocate resources for the sensing response end, and the sensing response end can send the sensing measurement report frame according to the allocated resources, and the sensing measurement report frame can be used to report the sensing measurement result.

[0364] In the 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.

[0365] In the embodiments of the present application, different stages of one TB measurement interaction can occur within one sensing availability window. For example, when one TB measurement interaction includes the above four stages, the above polling stage, NDPA sounding stage, TF sounding stage and reporting stage can occur within one sensing availability window. Exemplarily, one sensing availability window can include multiple transmission opportunities (TXOPs), and one TXOP can include one or more sensing measurement interactions.

[0366] Figure 4The roles of STA1 to STA2 in FIG. 1 can be the sensing transmitting end, and the roles of STA4 to STA6 can be the sensing receiving end. When the AP sends the sensing poll trigger frame to STA1 to STA5, STA3 does not reply 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 Figure 4 Although STA4 completes the sensing measurement based on the SI2SR NDP received by it in FIG. 1, in the reporting stage, STA4 can not report the sensing measurement result through the sensing measurement report frame, but report the sensing measurement result through the upper layer, for example. The sensing measurement result can include CSI or channel impulse response (CIR), etc.

[0367] As the standard progresses, the specific process of the TB sensing measurement interaction can change, so Figure 4 The process of the TB sensing measurement interaction shown in FIG. 1 is only an example, and should not be understood as a limitation on the embodiments of the present application. When the process of the TB sensing measurement interaction changes, the various examples shown below can also change.

[0368] In combination with Figure 4 The TB sensing measurement interaction shown in FIG. 1 and the transmission mode above can be extended to various high-low frequency cooperative TB sensing measurement interactions. The sensing communication method shown in the embodiments of the present application is described below through different examples. The examples one to five shown below are only examples, and in combination with the transmission mode above and Figure 4 More examples can also be extended, and the present application 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, and will not be repeated here.

[0369] When the second frequency band is the frequency band involved in the IMMW standard, the examples one to five below 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.

[0370] For ease of description, the sensing communication method shown in the present application will be described below by taking two sensing response ends as an example when referring to specific examples, but the number of sensing response ends should not be regarded as a limitation on the present application.

[0371] Example one,

[0372] Figure 5 is a process schematic diagram of the TB sensing measurement interaction provided by the embodiments of the present application. Figure 5 The other descriptions of the various stages shown in FIG. 1 can refer to Figure 4 and will not be repeated here. For example,Figure 5 As shown, the TB sensing measurement interaction can include:

[0373] (1A) Polling phase: the sensing initiator sends 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 to a CTS-to-self frame in the first frequency band to confirm its participation in the sensing measurement interaction.

[0374] 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 in the low frequency is less affected by shielding, the sensing initiator can make sensing responders in different directions receive the polling frame by sending the polling frame in the low frequency. Thus, polling can be efficiently completed, and the polling efficiency is improved. For the description of the sensing initiator sending the polling frame in the low frequency, reference can be made to the above manner 1, which will not be described in detail here.

[0375] In the case where the number of sensing responders is greater than or equal to 2, as a possible implementation manner, the sensing initiator can schedule the resources of each sensing responder through the polling frame to be mutually non-interfering or the interference to be less than a threshold, such as assigning different RUs or multiple RU (MRU) or distributed resource units (DRU) to different sensing responders. Thus, each sensing responder can send a CTS-to-self frame at the same time. That is, each sensing responder can send a CTS-2-self frame in the form of multi-user (MU). The specific duration of the same time is not limited in the embodiments of the present application.

[0376] In the embodiments of the present application, since the signal sent in the low frequency is less affected by shielding, the interaction in the polling phase is completed in the low frequency, which can efficiently complete the polling and improve the polling efficiency. Meanwhile, the sensing responder can efficiently confirm with the sensing initiator in the form of MU, which further improves the polling efficiency.

[0377] (2A) NDPA probing phase: the sensing initiator sends 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 sends a first PPDU for sensing in the second frequency band, and correspondingly, the sensing responder receives the first PPDU in the second frequency band.

[0378] The perception initiator can send NDPA frames omnidirectionally at a low frequency, and the receiving address of the NDPA frame can be a broadcast address. By sending NDPA frames omnidirectionally at a low frequency, the perception initiator can send the NDPA frames efficiently and less affected by obstructions. For instructions on how the perception initiator sends NDPA frames at a low frequency, please refer to the above method 1 and will not be described in detail here.

[0379] In an embodiment of the present application, when the perception measurement interaction in which the NDPA detection phase is located includes the polling phase shown in (1A), the polling frame, CTS-to-self frame and NDPA frame can all be located within the same TXOP at a low frequency, thereby reducing the number of channel contentions. Generally speaking, the AP or STA can be assigned a service period (SP), or an SP can be assigned between multiple STAs. Within the SP, other devices may not compete for channels with the device to which the SP is assigned. Therefore, the aforementioned polling frame, CTS-to-self frame and NDPA frame can also be located within the SP assigned by the AP, or within the SP assigned by the STA, or within the SP between the AP and the STA, and this embodiment of the present application does not limit this. Generally speaking, the step of assigning SP can be performed by the AP. Of course, as the standard progresses, other devices may appear later, and this embodiment of the present application does not limit this. The following takes the assigned SP as an example. As for which device this SP is, or which device assigns it, it will not be described in detail below.

[0380] After the sensing initiator sends the NDPA frame at the low frequency, it can switch to the high frequency to send the first PPDU. For the sending method of the first PPDU at the high frequency, please refer to 7 and will not be described in detail here.

[0381] Figure 5 In the ellipsis, the NDP is omitted. Figure 5 In the case of three NDPs, the perception initiator can send these three NDPs in different or the same directions, and the perception responder 1 and the perception responder 2 can receive these three NDPs. Optionally, the perception initiator can again send these three NDPs in different or the same directions, and the perception responder 2 can receive these three NDPs. The specific sending method of the NDP is not limited in this embodiment of the present application.

[0382] In an embodiment of the present application, after the sensing initiator switches from a low frequency to a high frequency, the sensing initiator may perform channel contention to obtain a TXOP and send a first PPDU within the TXOP, or the sensing initiator may send the first PPDU within an allocated SP. Exemplarily, one or more first PPDUs sent by the sensing initiator may belong to the same TXOP or SP.

[0383] In the embodiments of the present application, the NDPA frame is sent on a low frequency, and the NDPA frame can be efficiently sent and less affected by occlusion, ensuring that each sensing responder can receive the NDPA frame. At the same time, the first PPDU is sent on a high frequency, which can improve the sensing performance.

[0384] (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.

[0385] In the case where the sensing measurement interaction in which the TF detection phase is located includes the NDPA detection phase shown in (2A), the sensing initiator can switch to a low frequency after sending the above-mentioned first PPDU on a high frequency.

[0386] 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), the sensing initiator can continue to send a probe trigger frame on a low frequency after receiving a CTS-to-self frame on the low frequency. Similarly, the description of the sensing initiator herein also applies to the sensing responder.

[0387] Optionally, the polling frame, the CTS-to-self frame, and the probe trigger frame can belong to the same TXOP or SP.

[0388] As an example, the number of sensing responders can be 1.

[0389] As another example, the number of sensing responders can be greater than or equal to 2. In the case where the number of sensing responders is greater than or equal to 2, the sending mode of the probe trigger frame and the sending mode of the second PPDU can include:

[0390] As an example, the sensing initiator sends 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 send the second PPDU at different time instants. For example, the sensing initiator can send the probe trigger frame to the sensing responder 1 at the first time instant, and the address of the probe trigger frame can be the address of the sensing responder 1. The probe trigger frame includes the measurement resource allocated by the sensing initiator to the sensing responder 1. After receiving the probe trigger frame on the low frequency, the sensing responder 1 can perform channel contention on the high frequency to obtain the TXOP. Within the TXOP or within the allocated SP, the sensing responder 1 sends the second PPDU according to the measurement resource allocated in the probe trigger frame. The sensing responder 1 can send one or more second PPDUs on the high frequency, for example, one or more second PPDUs can be sent in different directions. For example, the one or more second PPDUs belong to the same TXOP or SP. After the sensing initiator completes the sensing measurement with the sensing responder 1 on the high frequency, the sensing initiator can switch to the low frequency, perform channel contention on the low frequency to obtain the TXOP, and send the probe trigger frame to the sensing responder 2 within the TXOP or within the allocated SP. The address of the probe trigger frame can be the address of the sensing responder 2. The probe trigger frame includes the measurement resource allocated by the sensing initiator to the sensing responder 2. Similarly, the sensing responder 2 can send the second PPDU in the manner described above for the sensing responder 1, which will not be described herein again. Figure 5 The sending manners shown in the above examples are only examples, and should not be understood as a limitation on the embodiments of the present application.

[0391] As another example, the sensing initiator sends the probe trigger frame to the multiple sensing responders at the same time, and the receiving address of the probe trigger frame is the broadcast address. For example, the probe trigger frame can include the measurement resource allocated by the sensing initiator to the sensing responder 1 and the measurement resource allocated by the sensing initiator to the sensing responder 2.

[0392] As another example, the sensing initiator can send the probe trigger frame to the multiple sensing responders at the same time, and the receiving address of the probe trigger frame is the address of each sensing responder. For example, the sensing initiator sends the probe trigger frame to the sensing responder 1, and the receiving address of the probe trigger frame can be the address of the sensing responder 1. 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 multiple sensing responders can perform channel contention on the high frequency to obtain the 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 different resources (such as different RUs or MRUs or DRUs or different directions, etc.) to send the second PPDU.

[0393] The transmission mode of the probe trigger frame can refer to the above-mentioned mode 3 or mode 4, and the transmission mode of the second PPDU can refer to the above-mentioned mode 8, which will not be described one by one here.

[0394] (4A) Reporting stage: the sensing initiator transmits 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 transmits a report frame in the first frequency band, and the corresponding sensing initiator receives the report frame in the first frequency band.

[0395] 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 transmit a report trigger frame to one or more sensing responders within an allocated SP.

[0396] 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 transmitting the first PPDU on the high frequency. The sensing initiator can perform channel contention on the low frequency to obtain a TXOP, or transmit a report trigger frame to one or more sensing responders within an allocated SP. Similarly, the description of the sensing initiator here also applies to the sensing responder.

[0397] As an example, the sensing initiator can transmit a report trigger frame to each of the plurality of sensing responders, 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 transmit a report frame in a one-by-one triggering manner.

[0398] As another example, the sensing initiator can transmit a report trigger frame to the plurality of sensing responders, and the receiving address of the report trigger frame can be a broadcast address. In this way, the sensing responders can transmit a report frame in the form of MU.

[0399] The transmission mode of the report trigger frame shown in (4A) can refer to the above-mentioned mode 1 or mode 2, which will not be described here.

[0400] Generally, in the case where 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 an SP; or the signals transmitted by the sensing initiator (or the sensing responder) on the high frequency can belong to the same TXOP or the same SP. For example, Figure 5In some embodiments, the sensing initiator transmits a poll frame at the low frequency, and receives a CTS-to-self frame at the low frequency, so the poll frame and the CTS-to-self frame can belong to the same TXOP or a SP. For example, Figure 5 In some embodiments, the sensing initiator transmits a report trigger frame at the low frequency, and receives a report frame at the low frequency, so the report trigger frame and the report frame can belong to the same TXOP or a SP. Alternatively, the different signals transmitted by the sensing initiator at the low frequency can belong to different TXOPs without frequency switching, which is not limited in the present application.

[0401] Alternatively, the poll frame, the CTS-to-self frame, the report trigger frame and the report frame can also be completed in the same TXOP. Thus, in the case of switching 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 of switching 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 TXOP.

[0402] The above description of TXOP or SP also applies hereinafter. The description of TXOP or SP is not repeated hereinafter.

[0403] In the embodiments of the present application, in addition to the transmission (such as transmission or reception) of the first PPDU and the second PPDU at the high frequency, other control frames are transmitted at the low frequency, thereby effectively ensuring the stability and anti-blocking of the transmission of these control frames, improving the transmission efficiency of the control frames, ensuring the smooth progress of the sensing measurement, and improving the sensing performance by utilizing the large bandwidth at the high frequency for measurement.

[0404] Example two,

[0405] Figure 6 is another flow diagram of the TB sensing measurement interaction provided by the embodiments of the present application. Figure 6 The other descriptions of each stage shown in the above diagram can be referred to in the above description of the first flow diagram, which is not repeated hereinafter. As shown in Figure 4 , the TB sensing measurement interaction can include: Figure 6

[0406] (1B) Polling stage: the sensing initiator transmits a poll frame at the first frequency band, and the corresponding sensing responder receives the poll frame at the first frequency band. The sensing responder participating in the interaction replies a CTS-to-self frame at the first frequency band to confirm its participation in the sensing measurement interaction.

[0407] The description of (1B) can be referred to in the above (1A), which is not repeated hereinafter.

[0408] ​(2B) NDPA detection phase: The sensing initiator sends an NDPA frame in the first frequency band, and the sensing responder receives the NDPA frame in the first frequency band. The sensing initiator sends a first PPDU for sensing in the second frequency band, and the sensing responder receives the first PPDU in the second frequency band.

[0409] For the description of (2B), please refer to (2A) above and will not be repeated here.

[0410] (3B) TF detection phase: The sensing initiator sends a detection trigger frame in the second frequency band, and the sensing responder receives the detection trigger frame in the second frequency band. The sensing responder sends a second PPDU for sensing in the second frequency band, and the sensing initiator receives the second PPDU in the second frequency band.

[0411] In the case where the sensing measurement interaction in the TF sensing phase includes the NDPA sensing phase shown in (3B), the sensing initiator can continue to send the sensing trigger frame in the second frequency band after sending the first PPDU. Figure 5 Regarding the description of TXOP or SP, since the first PPDU, the sounding trigger frame, and the second PPDU are all transmitted on the second frequency band, they can belong to the same TXOP or SP. This can reduce the number of high-frequency and low-frequency switching, the number of channel contentions, the complexity of channel access, and thus the complexity of the sensing process.

[0412] In the case where the perception measurement interaction in which the TF detection phase is located includes the polling phase shown in (1B) but does not include the NDPA detection phase shown in (2B), the perception initiator can switch to high frequency after receiving the CTS-to-self frame at low frequency and send a detection trigger frame at high frequency. Exemplarily, the polling frame, CTS-to-self frame, and detection trigger frame can belong to the same TXOP or SP. Similarly, the description of the perception initiator here also applies to the perception responder.

[0413] For example, the perception initiator can send a detection trigger frame to multiple perception responders at different times, and the receiving address of the detection trigger frame can be the address of the corresponding perception responder. The perception responder can send a second PPDU at a different time. For another example, the perception initiator can send a detection trigger frame at the same time, and the receiving address of the detection trigger frame can be a broadcast address, or the address of the corresponding perception responder. The perception responder can send the second PPDU in the form of MU (such as referring to the above method 8). Regarding the method of high-frequency transmission of the detection trigger frame, please refer to the above method 5 or method 6, etc., which will not be described in detail here.

[0414] (4B) Reporting phase: the sensing initiator transmits 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 transmits a report frame in the first frequency band, and correspondingly, the sensing initiator receives the report frame in the first frequency band.

[0415] The description about (4B) can refer to (4A) above, which will not be repeated here.

[0416] In the embodiments of the present application, the frames in the TF detection phase are transmitted in the high frequency, which can effectively reduce the switching times of high and low frequencies and the complexity of channel access, can effectively guarantee the efficiency of sensing measurement, and reduce the complexity of sensing measurement. At the same time, the large bandwidth on the high frequency is used for measurement, which improves the sensing performance.

[0417] Example three,

[0418] Figure 7 is another flow diagram of the TB sensing measurement interaction provided by the embodiments of the present application. Figure 7 The other descriptions of each phase shown in the above (1A) can refer to Figure 4 , which will not be repeated here. As Figure 7 shown, the TB sensing measurement interaction can include:

[0419] (1C) Polling phase: 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 that it participates in the sensing measurement interaction.

[0420] The description about (1C) can refer to (1A) above, which will not be repeated here.

[0421] (2C) NDPA detection phase: 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.

[0422] The description about (2C) can refer to (2A) above, which will not be repeated here.

[0423] (3C) TF detection phase: the sensing initiator transmits a detection trigger frame in the second frequency band, and correspondingly, the sensing responder receives the detection 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.

[0424] The description about (3C) can refer to (3B) above, which will not be repeated here.

[0425] (4C) Reporting phase: The sensing initiator sends a report trigger frame in the second frequency band, and the sensing responder receives the report trigger frame in the second frequency band. The sensing responder sends a report frame in the second frequency band, and the sensing initiator receives the report frame in the second frequency band.

[0426] As an example, the perception measurement interaction in the reporting phase includes the TF detection phase shown in (3C). At this time, after the perception initiator receives the second PPDU on the high frequency, it can continue to trigger the perception responder on the high frequency to report the perception measurement results.

[0427] As another example, the perception measurement interaction in the reporting phase includes the NDPA detection phase shown in (2C), but does not include the TF detection phase shown in (3C). In this case, after the perception initiator sends the first PPDU on the high frequency, it can continue to trigger the perception responder on the high frequency to report the perception measurement results. Similarly, the description of the perception initiator here also applies to the perception responder.

[0428] The way in which the perception initiator sends the report trigger frame can refer to the above-mentioned method 5 or method 6. For example, the perception initiator can send the report trigger frame at a high frequency at different times (such as the above-mentioned method 6), and the perception responder can send the report frame at different times. Figure 7 As shown, the perception initiator can first trigger the perception responder 1 to report the perception measurement result, and then trigger the perception responder 2 to report the perception measurement result. For another example, the perception initiator can send report trigger frames at a high frequency at the same time (such as the above-mentioned method 5). For example, the perception initiator can send report trigger frames in different directions to ensure that the aforementioned multiple perception responders can receive the report trigger frame. The receiving address of the report trigger frame can be a broadcast address or the address of the corresponding perception responder. The perception responder can send the report frame in the MU mode.

[0429] Exemplarily, the first PPDU, the detection trigger frame, the second PPDU, the report trigger frame or the report frame transmitted on the high frequency may belong to the same TXOP or SP.

[0430] In the embodiment of the present application, the frames involved in the TF detection phase, the frames involved in the reporting phase, and the first PPDU in the NDPA detection phase are all transmitted on a high frequency, thereby effectively reducing the number of high- and low-frequency switching and the complexity of corresponding channel access, effectively ensuring the efficiency of perception measurement and reducing the complexity of perception measurement. At the same time, the large bandwidth on the high frequency is used for measurement, thereby improving perception performance.

[0431] Example 4:

[0432] Figure 8 This is another flowchart of TB perception measurement interaction provided in an embodiment of the present application. Figure 8Further description of each stage shown in FIG. 1 can be referred to Figure 4 As shown in FIG. 1, the TB sensing measurement interaction can include: Figure 8

[0433] (1D) 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 a CTS-to-self frame in the first frequency band to confirm its participation in the sensing measurement interaction.

[0434] The description of (1D) can be referred to the above (1A) and the like, and will not be repeated here.

[0435] (2D) NDPA probing stage: the sensing initiator sends an NDPA frame in the second frequency band, and the corresponding sensing responder receives the NDPA frame in the second frequency band. The sensing initiator sends a first PPDU for sensing in the second frequency band, and the corresponding sensing responder receives the first PPDU in the second frequency band.

[0436] As an example, the sensing measurement interaction in which the NDPA probing stage is located includes the polling stage shown in (1D), and the sensing initiator can switch from the low frequency to the high frequency, send the sensing NDPA frame and the first PPDU in the high frequency.

[0437] As another example, the sensing measurement interaction in which the NDPA probing stage is located does not include the polling stage shown in (1D), and the sensing initiator can send the sensing NDPA frame and the first PPDU in the high frequency. Similarly, the description of the sensing initiator here is also applicable to the sensing responder.

[0438] The description of the sensing initiator sending the NDPA frame in the high frequency can be referred to the above mode 5 or mode 6. For example, the sensing initiator can send the NDPA frame in the high frequency at different time points (such as the above mode 6), and send the first PPDU at different time points. One or more first PPDU can be sent at the same time, and the embodiments of the present application do not limit this. For another example, the sensing initiator can send the NDPA frame in the high frequency in different directions to ensure the smooth reception of the NDPA frame. For another example, when the NDPA frame is set to be silent to other nodes (NAV) (that is, other nodes are in a silent state), the sensing initiator can also send the NDPA frame in all directions. Figure 8 The two NDPA frames shown in FIG. 1 are only examples, and should not be understood as a limitation of the embodiments of the present application.

[0439] ​(3D) TF detection phase: 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.

[0440] As an example, the sensing measurement interaction in which the TF detection phase is located includes the NDPA detection phase shown in (2B), and after the sensing initiator transmits the first PPDU on the high frequency, the sensing initiator can continue to transmit the probe trigger frame on the high frequency and receive the second PPDU. Similarly, the description about the sensing initiator herein also applies to the sensing responder.

[0441] 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), and the sensing initiator can switch from the low frequency to the high frequency, transmit the probe trigger frame on the high frequency, and receive the second PPDU.

[0442] The description about (3D) can also refer to (3B) and the like above, which will not be repeated herein.

[0443] (4D) 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.

[0444] The description about (4D) can refer to (4C) and the like above, which will not be repeated herein.

[0445] For example, 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.

[0446] In the embodiments of the present application, the frames involved in the NDPA detection phase, the frames involved in the TF detection phase, and the frames involved in the reporting phase 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. At the same time, the large bandwidth on the high frequency is utilized for measurement, and the sensing performance is improved.

[0447] Example five,

[0448] Figure 9 is another flow diagram of the TB sensing measurement interaction provided by the embodiments of the present application. Figure 9 The other descriptions of the stages shown in FIG. 5 can refer to Figure 9 , which will not be repeated herein. As shown in , the TB sensing measurement interaction can include:

[0449] (1E) Polling phase: the sensing initiator transmits a polling frame in the second frequency band, and the corresponding sensing responder receives the polling frame in the second frequency band. The sensing responder participating in the interaction replies to a CTS-to-self frame in the second frequency band to confirm its participation in the sensing measurement interaction.

[0450] 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.

[0451] As another example, the sensing initiator can transmit the polling frame at different times, respectively. As shown in FIG. 1E, the sensing initiator can transmit the polling frame at a first time, and the sensing responder 1 receives the polling frame and replies to a CTS-to-self frame. The sensing initiator transmits the polling frame at a second time, and the sensing responder 2 receives the polling frame and replies to a CTS-to-self frame. The transmission mode of the polling frame or the transmission mode of the CTS-to-self can refer to the above mode 5 or mode 6, and will not be described in detail here. Figure 9

[0452] (2E) NDPA sounding phase: the sensing initiator transmits a sensing NDPA frame in the second frequency band, and the corresponding sensing responder receives the sensing NDPA frame in the second frequency band. The sensing initiator transmits a first PPDU for sensing in the second frequency band, and the corresponding sensing responder receives the first PPDU in the second frequency band.

[0453] The description of (2E) can refer to (2D) and the like above, and will not be described in detail here.

[0454] (3E) TF sounding phase: the sensing initiator transmits a sounding trigger frame in the second frequency band, and the corresponding 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 the corresponding sensing initiator receives the second PPDU in the second frequency band.

[0455] The description of (3E) can also refer to (3B) and the like above, and will not be described in detail here.

[0456] (4E) Reporting phase: the sensing initiator transmits a reporting trigger frame in the second frequency band, and the corresponding sensing responder receives the reporting trigger frame in the second frequency band. The sensing responder transmits a reporting frame in the second frequency band, and the corresponding sensing initiator receives the reporting frame in the second frequency band.

[0457] The description of (4E) can refer to (4C) and the like above, and will not be described in detail here.

[0458] ​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.

[0459] In the embodiments of the present application, the frames involved in each stage of the sensing measurement interaction are transmitted on the high frequency, the sensing initiator (or the sensing responder) does not need to perform additional channel switching, the complexity of channel access is reduced, the efficiency of the sensing measurement can be effectively ensured, and the complexity of the sensing measurement is reduced. Meanwhile, the measurement is performed by using the large bandwidth on the high frequency, and the sensing performance is improved.

[0460] It can be understood that, Figures 5 to 10 The transmission mode of each frame shown in the accompanying drawings is only an example, and the mode shown in the accompanying drawings should not be understood as a limitation of the present application.

[0461] Figure 10 is a flow diagram of the non-TB sensing measurement interaction provided by the embodiments of the present application. As shown in Figure 10 The flow of the non-TB sensing measurement interaction can be as follows:

[0462] In the non-TB sensing measurement interaction, the STA as the sensing initiator can send the sensing NDPA frame, and send the SI2SR NDP after a predetermined interval (such as SIFS). The AP as the sensing responder sends the SR2SI NDP after SIFS, and performs the reporting stage after SIFS. The AP includes the measured sensing measurement result in the sensing measurement report frame, and thus reports to the sensing initiator.

[0463] Exemplarily, the sensing measurement result reported by the AP can be the sensing measurement result obtained based on the SI2SR NDP, such as the CSI from the STA to the AP. The AP sends 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 the CSI from the AP to the STA.

[0464] 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.

[0465] SI2SR NDP can be a predetermined NDP when no STA-to-AP sensing measurement is performed, i.e., the sensing NDPA frame does not indicate STA-to-AP sensing measurement information. The AP can not send a sensing measurement report frame when no STA-to-AP sensing measurement is performed. SR2SI NDP can also be a predetermined NDP when no AP-to-STA sensing measurement is performed, i.e., the sensing NDPA frame does not indicate AP-to-STA sensing measurement information. The predetermined NDP can be such that the number of space-time streams (NSTS) (or the number of spatial streams (NSS)) for SR2SI in the NDP can be set to 0, and the SR2SI repetition (SR2SI rep) field in the NDP can be set to 0. Alternatively, the predetermined NDP can be such that the NSTS (or the NSS) for SI2SR in the NDP can be set to 0, and the SI2SR repetition (SI2SR rep) field in the NDP can be set to 0.

[0466] The following Figures 11 to 13 are all exemplified based on the sensing NDPA frame indicating both STA-to-AP sensing measurement information and AP-to-STA sensing measurement information, but should not be construed as limiting the embodiments of the present application.

[0467] 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 can be described with reference to Figure 4 , which will not be described in detail here.

[0468] The sensing 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 six to eight below can also be referred to as IMMW high-low frequency cooperative non-TB sensing measurement interaction, or IMMW non-TB sensing measurement interaction, or IMMW high-low frequency hybrid non-TB sensing measurement interaction.

[0469] Example six,

[0470] Figure 11 is a flow diagram of a non-TB sensing measurement interaction provided by the embodiments of the present application. Figure 11 Further description of each stage shown in Figure 10 will not be described here. For example,Figure 11 As shown, the flow of the non-TB sensing measurement interaction can include:

[0471] (1F): The sensing initiator sends an NDPA frame in the first frequency band, and correspondingly, the sensing responder receives the NDPA frame in the first frequency band.

[0472] The transmission mode of the NDPA frame can refer to the above-mentioned mode 2 or (1A) and the like, and will not be described here in detail. For example, the address of the NDPA frame can be the address of the sensing responder.

[0473] In the embodiments of the present application, transmitting the NDPA frame on the low frequency 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 sensing responder report.

[0474] (2F): The sensing initiator sends a 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 sends a second PPDU for sensing in the second frequency band, and correspondingly, the sensing initiator receives the second PPDU in the second frequency band.

[0475] The step of the sensing initiator sending the first PPDU can be optional. The step of the sensing responder sending the second PPDU can be optional.

[0476] For example, the sensing initiator can directionally send the first PPDU in the second frequency band. For example, the sensing initiator can directionally send the first PPDU to multiple different directions. The sensing responder can directionally send the second PPDU in the second frequency band. For example, the sensing responder can directionally send the second PPDU to multiple different directions. The transmission mode of the first PPDU can refer to the above-mentioned mode 7 or (2A) and the like, and the transmission mode of the second PPDU can refer to the above-mentioned mode 8 or (3A) and the like, and will not be described here in detail.

[0477] After the sensing initiator sends the NDPA frame on the low frequency, the sensing initiator can switch to the high frequency, perform channel contention on the high frequency to obtain a TXOP, and send the first PPDU or receive the second PPDU in the TXOP or in a predetermined SP.

[0478] (3F): The sensing responder sends a sensing measurement report frame (such as Figure 11 As shown, the report) in the first frequency band, and correspondingly, the sensing initiator receives the sensing measurement report frame in the first frequency band.

[0479] The transmission mode of the sensing measurement report frame can refer to the above-mentioned mode 2 or (4A) and the like, and will not be described here in detail. For example, the receiving address of the sensing measurement report frame can be the address of the sensing initiator.

[0480] 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.

[0481] In the embodiments of the present application, the first PPDU and the second PPDU can belong to the same TXOP or SP.

[0482] 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 anti-blocking of the control frame transmission can be effectively guaranteed, the transmission reliability of the control frame is improved, the smooth progress of the sensing measurement is guaranteed, the sensing performance is improved by using the large bandwidth on the high frequency for measurement.

[0483] Example Seven,

[0484] Figure 12 is another flow diagram of the non-TB sensing measurement interaction provided by the embodiments of the present application. Figure 12 Other descriptions of each stage shown in FIG. 7 can refer to the descriptions of FIG. 6, and will not be repeated here. Figure 10 As shown in FIG. 7, the flow of the non-TB sensing measurement interaction can include the following steps. Figure 12

[0485] (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.

[0486] The description of (1G) can refer to the description of (1F) and the like above, and will not be repeated here.

[0487] (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.

[0488] The description of (2G) can refer to the description of (2F) and the like above, and will not be repeated here.

[0489] (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.

[0490] 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.

[0491] ​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.

[0492] Example Eight,

[0493] Figure 13 is another flow diagram of the non-TB sensing measurement interaction provided by the embodiments of the present application. Figure 13 Other descriptions of each stage shown in the above table can refer to Figure 10 , which will not be described hereinafter. As Figure 13 indicated, the flow of the non-TB sensing measurement interaction can include:

[0494] (1H): The sensing initiator sends an NDPA frame on the second frequency band, and correspondingly, the sensing responder receives the NDPA frame on the second frequency band.

[0495] For example, the address of the NDPA frame can be the sensing responder. For example, the sensing initiator can directionally send the NDPA frame to the sensing responder on the high frequency.

[0496] (2H): The sensing initiator sends a 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 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.

[0497] The description of (2H) can refer to (2F) and the like described above, which will not be described hereinafter.

[0498] (3H): The sensing responder sends a 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.

[0499] The description of (3H) can refer to (3G) and the like described above, which will not be described hereinafter.

[0500] For example, the above NDPA frame, first PPDU, second PPDU and sensing measurement report frame can belong to the same TXOP or SP.

[0501] 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.

[0502] As shown in the TB-aware measurement interaction above, one TB-aware measurement interaction can include at least one or more of a polling phase, an NDPA sounding phase, a TF sounding phase, and a reporting phase. In one possible implementation, embodiments of the present application deform the TB-aware measurement interaction, as shown below:

[0503] Example Nine,

[0504] Figures 14a to 14c is a flow diagram of the TB-aware measurement interaction provided by embodiments of the present application. As shown in Figures 14a to 14c , the flow of the TB-aware measurement interaction can include:

[0505] (1I): 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 replies with a CTS-to-self frame in the first frequency band to confirm its participation in the TB-aware measurement interaction.

[0506] The description of (1I) can refer to (1A) and the like, which will not be repeated here.

[0507] (2I): 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.

[0508] 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.

[0509] (3I): (a) The sensing initiator transmits a first PPDU in the second frequency band, and correspondingly, the sensing responder receives the first PPDU in the second frequency band. (b) The sensing responder transmits a second PPDU in the second frequency band, and the sensing initiator receives the second PPDU in the second frequency band.

[0510] The above step (a) is optional, and step (b) is optional.

[0511] The NDPA frame in the embodiments of the present application can implement at least one of the following: a function of the NDPA frame in the TB-aware measurement interaction described above, and a function of the probe trigger frame in the TB-aware measurement interaction described above. That is, the NDPA frame in the embodiments of the present application can implement at least one of the following: scheduling the sensing initiator to send the sensing PPDU, or scheduling the sensing responder to send the sensing PPDU. That is, the NDPA frame can be used to implement at least one of the following: configuring the sensing initiator to send the sensing PPDU to the sensing responder, or configuring the sensing responder to send the sensing PPDU to the sensing initiator. Alternatively, the NDPA frame can be used to complete at least one of the configuration of the SI2SR NDP or the configuration of the SR2SI NDP. The embodiments of the present application do not limit the transmission order of the first PPDU and the second PPDU described above.

[0512] As an example, as shown in Figure 14a , the NDPA frame can be used to indicate the information of the first PPDU and the information of the second PPDU. At this time, step (3I) can include step (a) and step (b). The information of the first PPDU or the information of the second PPDU can refer to the description of the sensing measurement information described above, and will not be described in detail here.

[0513] As another example, as shown in Figure 14b , the NDPA frame can be used to configure the first PPDU. At this time, step (3I) can include step (a).

[0514] As yet another example, as shown in Figure 14c , the NDPA frame can be used to configure the second PPDU. At this time, step (3I) can include step (b). Figure 14c The reporting stage is exemplified without reporting. As the sensing result of the sensing responder is reported through the upper layer (such as the protocol layer other than the MAC layer and the PHY layer).

[0515] As a possible implementation manner, the multiple sensing responders can send the second PPDU in the form of MU.

[0516] Exemplarily, the NDPA frame can be used to indicate the information of the second PPDU. The information can include at least one of the spatial stream (SS) information or the transmission power information allocated (or indicated) by the sensing initiator for each sensing responder.

[0517] 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.

[0518] 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).

[0519] 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.

[0520] As another possible implementation, the multiple responding STAs can also transmit the second PPDU in the form of SU.

[0521] 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.

[0522] 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.

[0523] 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.

[0524] The transmission mode of the first PPDU and the transmission mode of the second PPDU can be referred to the above (such as 2A or 2B, etc.), which will not be described here again.

[0525] 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 here.

[0526] 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 by the field is not limited in the embodiments of the present application.

[0527] 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. 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. 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).

[0528] The relationship between the values ​​and meanings of the fields shown above is only an example and should not be understood as a limitation on the embodiments of the present application.

[0529] (4I): The sensing initiator sends a report trigger frame in the first frequency band, and 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 the sensing initiator receives the sensing measurement report frame in the first frequency band.

[0530] For the description of (4I), please refer to the above (4A), etc., which will not be repeated here.

[0531] In an embodiment of the present application, the NDPA frame can be used to complete the functions of the perception NDPA frame and the detection trigger frame in the above examples 1 to 5. The functions of the above two frames are completed by one NDPA frame, thereby simplifying the process and saving the overhead of the detection trigger frame.

[0532] The following introduces other devices in the perception communication method involved in the embodiments of the present application.

[0533] Sensing by proxy (SBP) initiator: The device that initiates the SBP process or the SBP request frame. Typically, the SBP initiator can be a STA. For example, the SBP initiator can send SBP request frames at a low frequency or at a high frequency.

[0534] SBP responder: A device that responds to the SBP process, or responds to an SBP request frame with an SBP response frame. Typically, an SBP responder is an AP. An SBP responder can send SBP response frames at a low frequency or a high frequency. An SBP responder can also act as a sensing initiator and initiate sensing measurement request frames.

[0535] Figure 15 Schematic diagram of the SBP process provided in the embodiment of the present application. Figure 15 As shown in the figure, STA1 as the SBP initiator sends an SBP request frame to the AP. AP as the SBP responder, after receiving the SBP request frame (as shown in the figure), Figure 15 After receiving the SBP request frame, the AP will establish a sense with the corresponding sense response end according to the parameters carried in the SBP request frame, complete the measurement and provide feedback. Figure 15The AP can initiate a sensing measurement session as a sensing initiator, e.g., the AP can send a sensing measurement request frame to STA1 and STA2 respectively. The sensing measurement interaction initiated by the AP as a sensing initiator is generally a TB sensing measurement interaction. The description of the TB sensing measurement interaction can be referred to the above, which will not be repeated here. Figures 5 to 9 The description of the SBP measurement result will not be repeated here.

[0536] Figure 15 In the SBP, STA1 can initiate an SBP request as an SBP initiator, and can participate in a sensing measurement session as a sensing responder. However, in a specific implementation, STA1 can initiate an SBP request as an SBP initiator, but does not participate in a sensing measurement session initiated by an SBP responder (i.e., STA1 can not be a sensing responder).

[0537] The SBP procedure can further include a feedback phase (not shown) and a close phase (not shown) for example. In the feedback phase of the SBP, the AP as an 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 an SBP report frame. Alternatively, the SBP responder can not send the SBP report frame, but report the SBP sensing measurement report through an upper layer. The description of the SBP sensing measurement result is also applicable below. In the SBP close phase (not shown), 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. Figure 15 Figure 15 Figure 15 The sensing measurement request sent by the AP to STA1 or STA2 shown in the above is only an example, and should not be understood as a limitation to the embodiments of the present application. The description of the sensing measurement request and the sensing measurement response in the SBP can be referred to the above, which will not be repeated here.

[0538] Figure 15 The embodiments of the present application have the following description for the SBP initiator: Figure 15 Figure 15 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, which will not be repeated here.

[0539] The embodiments of the present application have the following description for the SBP initiator:

[0540] 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, which will not be repeated here.

[0541] ​​As an 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, the SBP initiator can receive the SBP report frame (or simply SBP report) from the SBP responder (as the sensing initiator) after the last stage of the sensing measurement interaction is completed.

[0542] B. The SBP initiator is not the sensing responder, i.e. the SBP initiator does not participate in the sensing measurement initiated by the SBP responder (as the sensing initiator), and thus 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.

[0543] C. The SBP initiator is an unassociated STA (USTA) with the sensing initiator, and the sensing initiator polls the SBP initiator in the polling stage of the sensing measurement interaction. As an example, when the SBP initiator participates in the sensing measurement session initiated by the SBP responder as the sensing responder, the sensing initiator can confirm whether the SBP initiator can participate in the sensing measurement session or receive the SBP report frame by polling the SBP initiator. When the SBP initiator confirms to participate in the sensing measurement interaction, 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 above, which will not be described herein again. As another example, when the SBP initiator does not participate in the sensing measurement session initiated by the SBP initiator, i.e. the SBP initiator is not the sensing responder, the sensing initiator can confirm whether the SBP initiator can receive the SBP report frame by polling the SBP initiator.

[0544] In the embodiments of the present application, the sensing initiator can poll the SBP initiator whether the SBP initiator is the sensing responder or not.

[0545] D. The SBP initiator is an associated STA with the sensing initiator, and the sensing initiator can poll or not poll the SBP initiator in the polling stage of the sensing measurement interaction.

[0546] In combination with the above Figures 5 to 9 , the embodiments of the present application provide various schematic diagrams of the SBP procedure.

[0547] Figure 16a And Figure 16b is a schematic diagram of the SBP procedure provided by the sensing measurement interaction shown in Figure 5 .

[0548] As Figure 16aAs shown, the frame in the reporting phase of the sensing measurement interaction is transmitted in the first frequency band, and meanwhile, the SBP report frame can also be sent by the sensing initiator in the first frequency band. In this way, the complexity of obtaining TXOP through channel contention can be effectively reduced, and the complexity of channel switching can also be reduced. Figure 16a In some embodiments, 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 each of the two sensing responders can be used to indicate that the corresponding sensing responder (i.e., the sensing responder sending the CTS-to-self frame) can participate in the sensing measurement session.

[0549] 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.

[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. Figure 16a 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. Figure 16b 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. Figure 5 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. Figure 15 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] Figure 17a 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. Figure 17b 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. Figure 6 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. Figure 17a 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. Figure 17b 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. Figure 6 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. Figure 15 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. Figure 16a 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. Figure 16b 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.

[0552] Figure 18a 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. Figure 18b 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. Figure 7 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. Figure 18b 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. 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.

[0553] 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. 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.

[0554] 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. Figure 19a 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. Figure 19b 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. Figure 8 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. Figure 19aand Figure 19b The description of Figure 8 , Figure 15 , Figures 16a to 18b , etc. will not be repeated here.

[0555] Figures 20a and Figure 20b is another SBP process diagram provided by the perception measurement interaction shown in the embodiments of the present application Figure 9 The description of Figure 20a and Figure 20b can refer to Figure 8 , Figure 15 , Figures 16a to 19b , etc. will not be repeated here.

[0556] In the embodiments of the present application, Figures 16a to 20b The SBP process shown in the embodiments of the present application can flexibly realize high and low frequency perception, and improve the perception efficiency and the perception performance.

[0557] The ranging communication method and device shown in the present application will be described in detail below.

[0558] Ranging initiator: a device that initiates a 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 (IFTMR) frame. The ranging initiator can send the IFTMR frame at low frequency, or send the IFTMR frame at high frequency. The fine timing measurement session can also be referred to as a ranging measurement session, and the IFTMR frame can also be referred to as a ranging measurement request frame, etc. The ranging initiator can also be a ranging transmitter or a ranging receiver.

[0559] Ranging responder: a device participating in a ranging session in response to a ranging initiator. For example, a ranging responder can receive an IFTMR frame and reply with an initial fine timing measurement (IFTM) frame. For example, a ranging responder can reply with an IFTM frame at low frequency or at high frequency. For example, for a triggered FTM (TB FTM) interaction, a ranging initiator can be a STA and a ranging responder can be an AP. For example, for a non-triggered FTM (non-TB FTM) interaction, a ranging initiator can be a STA and a ranging responder can be an AP. The specific product form of a ranging initiator or a ranging responder for a TB FTM session or a non-TB FTM session is not limited in the embodiments of the present application. A ranging responder can be a ranging transmitter or a ranging receiver.

[0560] Ranging transmitter: a device transmitting a ranging PPDU. For example, a ranging transmitter can transmit a ranging PPDU at low frequency or at high frequency.

[0561] Ranging receiver: a device receiving a ranging PPDU. For example, a ranging receiver can receive a ranging PPDU at low frequency or at high frequency.

[0562] The ranging PPDU shown in the embodiments of the present application is a PPDU used for ranging. The format of the PPDU can be referred to the above description of the format of the sensing PPDU, and the embodiments of the present application do 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 can be different, which is not limited in the embodiments of the present application. Figures 2a to 2d

[0563] The ranging measurement interaction in a ranging measurement session is described in detail below.

[0564] One ranging measurement interaction can include at least one of the following four stages: a polling stage, a TF sounding stage, an NDPA sounding stage or a reporting stage. The type of the control frame in each stage of the ranging measurement interaction can be ranging, and the type of the control frame in each stage of the sensing measurement interaction can be sensing. Whether other information is the same or not is not limited in the embodiments of the present application. The transmission mode of each control frame or ranging PPDU is described below with reference to the description of the sensing measurement interaction, which is not repeated here.

[0565] ​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 mixed TB ranging measurement interaction, or high-low frequency mixed IMMW TB ranging measurement interaction. For ease of description, the perception communication method shown in the present application is described below by taking two perception response ends as examples when referring to specific examples, but the number of perception response ends should not be regarded as a limitation on the present application.

[0566] Example ten,

[0567] Figure 21 is a flowchart of a TB ranging measurement interaction provided by an embodiment of the present application. As Figure 21 indicated, the flow of the TB ranging measurement interaction can include:

[0568] (1J) Polling phase: the ranging response end sends a polling frame in the first frequency band, and correspondingly, the ranging initiator receives the polling frame in the first frequency band. The ranging initiator participating in the interaction resumes a CTS-to-self frame in the first frequency band to confirm its participation in the ranging measurement interaction.

[0569] The description of (1J) can refer to the description of (1A) above, which will not be described here again.

[0570] (2J) TF detection phase: the ranging response end sends a probe trigger frame in the first frequency band, and correspondingly, the ranging initiator receives the probe trigger frame in the first frequency band. The ranging initiator sends a second PPDU for ranging in the second frequency band, and correspondingly, the ranging response end receives the second PPDU in the second frequency band.

[0571] In the case where the ranging measurement interaction in which the TF detection phase is located includes the polling phase shown in (1J), the polling frame, the CTS-to-self frame, and the probe trigger frame can be located in the same TXOP in the low frequency, thereby effectively reducing the number of channel contention and improving the ranging efficiency. Alternatively, the above-mentioned polling frame, CTS-to-self frame, and probe trigger frame can be located in the same target wake time (TWT) window, or in the allocated SP.

[0572] After the ranging response end sends the probe trigger frame, it can switch to the second frequency band, perform channel contention on the second frequency band, obtain a TXOP, and send the second PPDU 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.

[0573] As an example, the ranging responder can trigger the ranging initiator to send the second PPDU at different time instants respectively, i.e., the ranging responder can send the sounding trigger frame to the ranging initiator at different time instants respectively.

[0574] As another example, the ranging responder can trigger different ranging initiators to send the second PPDU in MU form.

[0575] As to the transmission mode of the second PPDU, reference can be made to the above, and no longer be described in detail herein.

[0576] The sounding trigger frame can also be referred to as a sounding ranging trigger frame, and the polling frame can also be referred to as a poll ranging trigger or a TF ranging poll frame, etc., and the name of each frame is not limited in the embodiments of the present application.

[0577] (3J) NDPA sounding phase: the ranging responder 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 responder 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.

[0578] Reference can be made to the above (2A) and the like for the description of (3J), and no longer be described in detail herein.

[0579] (4J) reporting phase: the ranging responder sends a report frame in the first frequency band, and correspondingly, the ranging initiator receives the report frame.

[0580] The report frame sent by the ranging responder can also be referred to as a ranging responder-to-ranging initiator report, or an initiating STA to responding STA location measurement report (ISTA to RSTA LMR).

[0581] When the ranging responder also needs the ranging measurement result, the ranging responder can send a report trigger frame in the first frequency band, and correspondingly, the ranging initiator receives the report trigger frame in the first frequency band. The ranging initiator sends a report frame in the first frequency band, and correspondingly, the ranging responder receives the report frame in the first frequency band. The step of triggering the ranging initiator to report by the ranging responder is an optional phase. In the establishment phase of the ranging measurement session, if the ranging initiator and the ranging responder do not negotiate this step, this phase will not appear, i.e., the step of triggering the ranging initiator to report by the ranging responder can not appear.

[0582] The above report trigger frame can also be referred to as (TF ranging LMR), and the report frame sent by the ranging initiator can also be referred to as ranging initiator to ranging responder report (ISTA to RSTA LMR).

[0583] The description of (4J) can refer to (4A) and the like, and will not be repeated here.

[0584] Figure 22 is another process schematic diagram of the TB ranging measurement interaction provided by the embodiments of the present application. The description of Figure 22 can refer to the description of Figure 6 or Figure 21 , and will not be repeated here.

[0585] The transmission mode of the probe trigger frame can refer to the description of the probe trigger frame in the perception measurement interaction, and will not be repeated here.

[0586] Figure 23 is another process schematic diagram of the TB ranging measurement interaction provided by the embodiments of the present application. The description of Figure 23 can refer to the description of Figure 7 or Figure 21 , and will not be repeated here.

[0587] 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 perception measurement interaction, and will not be repeated here.

[0588] Figure 24 is another process schematic diagram of the TB ranging measurement interaction provided by the embodiments of the present application. The description of Figure 24 can refer to the description of Figure 8 or Figure 21 , and will not be repeated here.

[0589] The description of the NDPA frame can refer to the description of the NDPA frame in the perception measurement interaction, and will not be repeated here.

[0590] Figure 25 is another process schematic diagram of the TB ranging measurement interaction provided by the embodiments of the present application. The description of Figure 25 can refer to the description of Figure 9 or Figure 21 , and will not be repeated here.

[0591] Figure 26 is a process schematic diagram of the non-TB ranging measurement interaction provided by the embodiments of the present application. The description of Figure 26 can refer to the description of Figure 10 or Figure 21 , and will not be repeated here.

[0592] Figure 27 is a flow diagram of non-TB ranging measurement interaction provided by an embodiment of the present application. The description of Figure 27 may refer to the description of Figure 11 or Figure 21 , and the like, which will not be repeated here.

[0593] Figure 28 is another flow diagram of non-TB ranging measurement interaction provided by an embodiment of the present application. The description of Figure 28 may refer to the description of Figure 12 or Figure 21 , and the like, which will not be repeated here.

[0594] Figure 29 is still another flow diagram of non-TB ranging measurement interaction provided by an embodiment of the present application. The description of Figure 29 may refer to the description of Figure 13 or Figure 21 , and the like, which will not be repeated here.

[0595] In the above embodiments, the implementation of which is not described in detail in one embodiment can refer to other embodiments.

[0596] The communication device provided by an embodiment of the present application will be introduced below.

[0597] The present application divides the functional modules of the communication device according to the above-mentioned method embodiments. For example, each functional module can be divided according to each function, or two or more functions can be integrated in one processing module. The above-mentioned integrated module can be realized in the form of hardware or in the form of a software functional module. It should be noted that the division of the modules in the present application is illustrative, and is only a logical functional division. When actually implemented, there can be another division manner. The communication device of the embodiment of the present application will be described in detail below. Figures 30 to 32

[0598] The communication device shown in the embodiments of the present application can also be called a perception communication device or a ranging communication device, and the like. The specific name of the device is not limited in the present application.

[0599] Figure 30 is a structural diagram of the communication device provided by an embodiment of the present application, as Figure 30 shown, the communication device includes a processing module 3001 and a transceiver module 3002. The transceiver module 3002 can realize the corresponding communication function, and the processing module 3001 is used to realize the corresponding processing function. For example, the transceiver module 3002 can also be called an interface module, a communication interface, a communication module, or an input and output interface, and the like.

[0600] ​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.

[0601] The transceiver module 3002 can be configured to transmit 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.

[0602] As an example, the transceiver module 3002 can be configured to transmit 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.

[0603] 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.

[0604] The transceiver module 3002 can also be configured to transmit 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.

[0605] The transceiver module 3002 can also be configured to transmit or output the sensing NDPA frame. The processing module 3001 can be configured to generate the sensing NDPA frame.

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

[0607] The transceiver module 3002 can also be configured to transmit or output the sensing PPDU or receive or input the sensing PPDU.

[0608] The transceiver module 3002 can also be configured to transmit 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.

[0609] The specific description of the sensing initiator can also refer to the above method embodiments, which will not be listed one by one here.

[0610] Multiplexing Figure 30In some embodiments of the application, the communication device can be configured to perform the actions performed by the sensing response end in the above method embodiments. The communication device can be the sensing device itself or a chip or functional module configured in the device.

[0611] 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] 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.

[0613] 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 and the radio frequency module, the sensing measurement request frame is input to the transceiver module 3002 so that the processing module 3001 can parse the sensing measurement request frame. The transceiver module 3002 can include an input / output module, etc.

[0614] 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.

[0615] 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.

[0616] 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.

[0617] The transceiver module 3002 can also be configured to receive or input the sensing PPDU or transmit or output the sensing PPDU.

[0618] 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.

[0619] Multiplexing Figure 30 In some embodiments of the application, the communication device can be configured to perform the actions of the ranging initiator in the above 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 transceiving related operations or the input / output related operations of the ranging initiator in the above method embodiments. The processing module 3001 can be configured to perform the processing related operations of the ranging initiator in the above method embodiments. Here, the TB ranging measurement interaction is taken as an example for illustration.

[0620] 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.

[0621] 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.

[0622] 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 / output module, etc.

[0623] 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.

[0624] 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.

[0625] 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.

[0626] The transceiver module 3002 can also be configured to send or output the ranging PPDU; or, configured to receive or input the ranging PPDU.

[0627] 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.

[0628] 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.

[0629] The above is described by taking the TB ranging measurement interaction as an example. For the non-TB ranging measurement interaction, the following applies:

[0630] 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.

[0631] The transceiver module 3002 can also be configured to transmit or output the ranging PPDU, or receive or input the ranging PPDU.

[0632] 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.

[0633] 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.

[0634] The specific description of the ranging initiator can also refer to the method embodiments shown above, and will not be listed one by one here.

[0635] Multiplexing Figure 30 In some embodiments of the present application, the communication device can be configured to perform the actions performed by the ranging responder in the above method embodiments. In this case, the communication device can be the ranging device itself or a chip or functional module configured in the device. The transceiver module 3002 is configured to perform the transceiving-related operations or input / output-related operations of the ranging responder in the above method embodiments, and the processing module 3001 is configured to perform the processing-related operations of the ranging responder in the above method embodiments.

[0636] 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.

[0637] 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.

[0638] As another example, the transceiver module 3002 can be configured to input the ranging measurement request frame. For example, after the ranging measurement request frame is processed by the antenna and the radio frequency module, the ranging measurement request frame is input to 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.

[0639] For example, the transceiver module 3002 can also be used to send or output polling frames and receive or input CTS-to-self frames. For example, the processing module 3001 can be used to generate polling frames and parse CTS-to-self frames.

[0640] For example, the transceiver module 3002 may also be used to send or output a ranging NDPA frame. The processing module 3001 may be used to generate the ranging NDPA frame.

[0641] For example, the transceiver module 3002 may also be used to send or output a ranging detection trigger frame. The processing module 3001 may be used to generate the ranging detection trigger frame.

[0642] For example, the transceiver module 3002 may also be used to receive or input a ranging PPDU, or to send or output a ranging PPDU.

[0643] For example, the transceiver module 3002 may be used to send or output a report frame. For example, the processing module 3001 may be used to generate a report frame.

[0644] For example, the transceiver module 3002 can also be used to receive or input a report frame. For example, the processing module 3001 can be used to parse the report frame.

[0645] The above content is based on the example of TB ranging measurement interaction. For non-TB ranging measurement interaction:

[0646] The transceiver module 3002 may be configured to receive or input a ranging NDPA frame. The processing module 3001 may be configured to parse the ranging NDPA frame.

[0647] The transceiver module 3002 may also be configured to send or output ranging PPDUs, or receive or input ranging PPDUs.

[0648] The transceiver module 3002 may also be used to send or output a report frame. The processing module 3001 may be used to generate the report frame.

[0649] The transceiver module 3002 may also be used to receive or input a report frame. The processing module 3001 may be used to parse the report frame.

[0650] Reuse Figure 30 In some other embodiments of the present application, a communication device can be used to execute the actions performed by the SBP initiator in the above method embodiments. In this case, the communication device can be the sensing device itself or a chip or functional module configurable in the device. The transceiver module 3002 is used to execute the transceiver-related operations or input / output-related operations of the SBP initiator in the above method embodiments, and the processing module 3001 is used to execute the processing-related operations of the SBP initiator in the above method embodiments.

[0651] 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.

[0652] 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.

[0653] 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.

[0654] The transceiver module 3002 can also be configured to receive or input the SBP report frame.

[0655] Multiplexing Figure 30 In some embodiments of the application, the communication device can be configured to perform the actions performed by the SBP response end in the above method embodiments. The communication device can be a sensing device itself or a chip or a functional module configured in the device, etc. The transceiver module 3002 can be configured to perform the transceiving related operations or the input / output related operations of the SBP response end in the above method embodiments. The processing module 3001 can be configured to perform the processing related operations of the SBP response end in the above method embodiments.

[0656] 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.

[0657] 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.

[0658] 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 can parse the SBP request frame. The transceiver module 3002 can include an input / output module, etc.

[0659] The transceiver module 3002 can also be configured to transmit or output the SBP report frame.

[0660] 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, and the processing module 3001 can read the instructions and / or data in the storage module to enable the apparatus to implement the foregoing method embodiments.

[0661] In each of 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 foregoing method embodiments, which will not be repeated here.

[0662] The specific description of the transceiver module and the processing module shown in each of the above embodiments is only an example. For the specific functions or executed steps of the transceiver module and the processing module, etc., reference can be made to the foregoing method embodiments, which will not be described in detail here.

[0663] It can be understood that the division of the modules in the above apparatus is only a logical functional division. Each function can correspond to a functional module, or two or more functions can be integrated into one functional 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 functional modules can be implemented in the form of hardware, software, or a combination of hardware and 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.

[0664] In one example, the functional units in any of the above apparatuses 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.

[0665] The above introduces the apparatus of the embodiments of the present application. The following introduces the possible product forms of the apparatus. Any product that has the functions of the above-mentioned apparatuses can be regarded as a product of the present application. Figure 30Any form of product of the functions of the apparatus falls within the scope of protection of the embodiments of the present application. The following introduction is only for example, and does not limit the product form of the apparatus of the embodiments of the present application.

[0666] In a possible implementation manner, Figure 30 In the communication apparatus shown, 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 the embodiments of the present application, the processor and the transceiver can be coupled, and the connection manner of the processor and the transceiver is not limited in the embodiments of the present application. In the process of executing the above method, the process of sending information in the above method can be the process of outputting the above information by the processor. 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, it can also need to be processed for other purposes before reaching the transceiver. Similarly, the process of receiving information in the above method can be the process of receiving inputted above information by the processor. When the processor receives the inputted information, the transceiver receives the above information and inputs it to the processor. Furthermore, after the transceiver receives the above information, the above information can need to be processed for other purposes before being inputted to the processor.

[0667] Figure 31 FIG. 13 is another structural schematic diagram of the communication apparatus provided by the embodiments of the present application. As shown in the figure, Figure 31 The communication apparatus 310 includes one or more processors 3120 and a transceiver 3110.

[0668] In some embodiments of the present 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 as shown in Figure 30 The transceiver 3110 can be used to execute the functions or steps implemented by the transceiver module 3002 as shown in Figure 30 The specific description of the processor 3120 and the transceiver 3110 can refer to the method embodiments shown in Figure 30 or the above, and will not be described in detail here.

[0669] In some embodiments of the present 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 as shown in Figure 30 The transceiver 3110 can be used to execute the functions or steps implemented by the transceiver module 3002 as shown in Figure 30The functions or steps implemented by the transceiver module 3002 are shown in FIG. Figure 30 Or the method embodiments shown above will not be described in detail here.

[0670] In some embodiments of the present application, the communication device may be used to execute the steps, methods, or functions executed by the ranging initiator, such as the processor 3120 may be used to execute the steps, methods, or functions executed by the ranging initiator. Figure 30 The functions or steps implemented by the processing module 3001 shown in FIG. 3 may be performed by the transceiver 3110. Figure 30 The functions or steps implemented by the transceiver module 3002 are shown in FIG. Figure 30 Or the method embodiments shown above will not be described in detail here.

[0671] In other embodiments of the present application, the communication device is used to execute the steps, methods or functions executed by the ranging response end, such as the processor 3120 can be used to execute the following steps: Figure 30 The functions or steps implemented by the processing module 3001 shown in FIG. 3 may be performed by the transceiver 3110. Figure 30 The functions or steps implemented by the transceiver module 3002 are shown in FIG. Figure 30 Or the method embodiments shown above will not be described in detail here.

[0672] In some embodiments of the present application, the communication device may be used to execute the steps, methods, or functions executed by the above-mentioned SBP initiator, such as the processor 3120 may be used to execute the following steps: Figure 30 The functions or steps implemented by the processing module 3001 shown in FIG. 3 may be performed by the transceiver 3110. Figure 30 The functions or steps implemented by the transceiver module 3002 are shown in FIG. Figure 30 Or the method embodiments shown above will not be described in detail here.

[0673] In other embodiments of the present application, the communication device is used to execute the steps, methods or functions executed by the above-mentioned SBP responder, such as the processor 3120 can be used to execute the following steps: Figure 30 The functions or steps implemented by the processing module 3001 shown in FIG. 3 may be performed by the transceiver 3110. Figure 30 The functions or steps implemented by the transceiver module 3002 are shown in FIG. Figure 31 Or the method embodiments shown above will not be described in detail here.

[0674] existFigure 31 In various implementations of the apparatus shown, the transceiver may include a receiver and a transmitter, wherein the receiver is configured to perform a receiving function (or operation) and the transmitter is configured to perform a transmitting function (or operation), and the transceiver is configured to communicate with other devices / apparatuses via a transmission medium.

[0675] Optionally, the device 310 may further include one or more memories 3130 for storing program instructions and / or data. The memory 3130 is coupled to the processor 3120. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 3120 may operate in conjunction with the memory 3130. The processor 3120 may execute program instructions stored in the memory 3130. Optionally, at least one of the one or more memories may be included in the processor.

[0676] The specific connection medium between the transceiver 3110, the processor 3120 and the memory 3130 is not limited in the embodiment of the present application. Figure 31 The memory 3130, the processor 3120 and the transceiver 3110 are connected via a bus 3140. Figure 31 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 31 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0677] In the embodiments of the present application, the processor may be a general-purpose 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., and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor, etc.

[0678] In the embodiment of the present application, memory may include but is not limited to non-volatile memories such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM) or portable read-only memory (CD-ROM), etc. Memory is any storage medium that can be used to carry or store program code 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), but is not limited to this. The memory in the embodiment of the present application can also be a circuit or other arbitrarily capable of realizing a storage function, for storing program instructions and / or data.

[0679] The processor 3120 is primarily used to process communication protocols and communication data, as well as control the entire device, execute software programs, and process software program data. The memory 3130 is primarily used to store software programs and data. The transceiver 3110 may include a control circuit and an antenna. The control circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as a touch screen, display, and keyboard, are primarily used to receive user input and output data to the user.

[0680] When the device is powered on, the processor 3120 reads the software program stored in the memory 3130, interprets and executes the software program's instructions, and processes the software program's data. 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 RF circuit. The RF circuit then performs RF processing on the baseband signal and transmits it via the antenna in the form of electromagnetic waves. When data is sent to the device, the RF circuit receives the RF signal via the antenna, converts the RF 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.

[0681] In another implementation, the RF circuit and antenna may be arranged independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be arranged remotely from the device.

[0682] The device shown in the embodiment of the present application may also have Figure 30More components, etc. are not limited in the embodiments of the present application. The method performed by the processor and the transceiver shown above is only an example. For the steps specifically performed by the processor and the transceiver, refer to the method described above.

[0683] In another possible implementation manner, Figure 32 In the device shown, 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 in one module, for example, an input / output interface.

[0684] Figure 32 Fig. 16 is another structural schematic diagram of a communication device provided by the embodiments of the present application. As shown in Figure 32 Fig. 17 is another structural schematic diagram of a communication device provided by the embodiments of the present application. As shown in Figure 32 The device shown 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, Figure 30 Fig. 18 is a structural schematic diagram of a chip including the logic circuit 3201 and the interface 3202.

[0685] In the embodiments of the present application, the logic circuit and the interface can also be coupled to each other. The specific connection manner of the logic circuit and the interface is not limited in the embodiments of the present application. For example, the logic circuit 3201 can be used to perform the functions or steps implemented by the processing module 3001 as shown in Figure 30 Fig. 19, and the interface 3202 can be used to perform the functions or steps implemented by the transceiving module 3002 as shown in Figure 30 Fig. 20. The specific description of the logic circuit 3201 and the interface 3202 can refer to the method embodiments shown in ​ or the above, which will not be described in detail herein.

[0686] The device 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. The embodiments of the present application do not limit this.

[0687] The embodiments of the present application further provide a communication system, which includes a sensing initiation end and a sensing response end, and the sensing initiation end and the sensing response end can be used to perform the method in any of the foregoing embodiments.

[0688] 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 execute the method in any of the foregoing embodiments.

[0689] 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 execute the method in any of the foregoing embodiments.

[0690] 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.

[0691] 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 execute 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 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 executed.

[0693] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other means. 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 components can be indirect coupling or communication connection through some interfaces, devices or modules, and can also be electrical, mechanical or other forms of connection.

[0694] 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 on 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.

[0695] In addition, each function module in each embodiment of the present application can be integrated in one processing module, or each module can be physically present alone, or two or more modules can be integrated in one module. The integrated module can be realized in the form of hardware or in the form of a software function module.

[0696] When the integrated module is realized in the form of a software function module and sold or used as an independent product, the integrated module can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art, 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, includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment 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.

[0697] The above is only a specific embodiment 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 in 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 according to claim 1, characterized in that 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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