Information indication method and apparatus, and communication device

Abstract

Provided are an information indication method and apparatus, and a communication device, the method comprising: a first STA sending at least one of first information, second information, and third information to one or more second STAs, the first information being used for indicating a space-time stream sequence number of a Golay sequence used for sensing a PPDU, the second information being used for indicating a type of sensing the PPDU, and the third information being used for indicating the type of sensing the PPDU; the third information is used for indicating a sensing field type used for sensing the PPDU.

Description

Information indication method and device, and communication equipment Technical Field

[0001] The embodiments of the present application relate to the field of short-range communication technology, and specifically to an information indication method and apparatus, and communication equipment. Background Art

[0002] In sensing communication, participating stations (STAs) transmit and / or receive sensing physical layer protocol data units (PPDUs) to implement sensing measurements. However, when multiple STAs simultaneously transmit and / or receive sensing PPDUs, mutual interference between STAs can occur, affecting the accuracy of the final sensing measurement. Furthermore, the types of sensing PPDUs transmitted and / or received by STAs, as well as the types of sensing fields used in the sensing PPDUs for sensing, are not defined in the relevant standards, resulting in significant uncertainty in the degree of interference between STAs.

[0003] Summary of the Invention

[0004] Embodiments of the present application provide an information indication method and apparatus, a communication device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

[0005] The information indication method provided in the embodiment of the present application includes:

[0006] The first STA sends at least one of the first information, the second information, and the third information to one or more second STAs, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0007] The information indication method provided in the embodiment of the present application includes:

[0008] The second STA receives at least one of the first information, the second information, and the third information sent by the first STA, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0009] The information indication device provided in the embodiment of the present application is applied to a first STA, and the device includes:

[0010] A sending unit, configured to send at least one of first information, second information, and third information to one or more second STAs, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0011] The information indication device provided in the embodiment of the present application is applied to a second STA, and the device includes:

[0012] A receiving unit, configured to receive at least one of first information, second information, and third information sent by a first STA, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0013] The communication device provided in an embodiment of the present application includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the above-mentioned information indication method.

[0014] The chip provided in the embodiment of the present application is used to implement the above-mentioned information indication method. Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned information indication method.

[0015] The computer-readable storage medium provided in an embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned information indication method.

[0016] The computer program product provided in an embodiment of the present application includes computer program instructions, which enable a computer to execute the above-mentioned information indication method.

[0017] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned information indication method.

[0018] In the technical solution of the embodiment of the present application, on the one hand, the first STA indicates the space-time stream number of the Golay sequence used by the perception PPDU to the second STA through the first information. In this way, the second STA can send the perception PPDU with the Golay sequence of the specified space-time stream number, thereby reducing the mutual interference between STAs in the perception communication. On the other hand, the first STA indicates the type of the perception PPDU to the second STA through the second information and / or indicates the type of the perception field used by the perception PPDU to the second STA through the third information. In this way, the second STA can avoid the large uncertainty in the degree of interference between STAs when sending the specified type of perception PPDU and / or sending the perception PPDU with the specified type of perception field. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] FIG1 is a diagram of a communication system architecture used in an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of millimeter wave sensing types;

[0022] Figure 3 is a flow chart of millimeter wave sensing;

[0023] FIG4( a ) is a flowchart of an example of cooperative single-base sensing measurement in sequential mode;

[0024] FIG4( b ) is a flowchart of a collaborative single-base sensing measurement example in parallel mode;

[0025] FIG5 is a schematic diagram of the DMG perception measurement setting element frame format;

[0026] FIG6 is a schematic diagram of a TDD beamforming frame format;

[0027] Figure 7 is a schematic diagram of the DMG perception request frame format;

[0028] FIG8 is a schematic diagram of the DMG perception response frame format;

[0029] Figure 9 is a schematic diagram of the DMG perception polling frame format;

[0030] Figure 10 is The autocorrelation and cross-correlation simulation results of ;

[0031] FIG11 is a flow chart of an information indication method according to an embodiment of the present application;

[0032] FIG12 is a schematic diagram of the Extended Configuration sub-element frame format provided in an embodiment of the present application;

[0033] FIG13 is a second schematic diagram of the Extended Configuration sub-element frame format provided in an embodiment of the present application;

[0034] FIG14 is a schematic diagram of a DMG perception request frame format according to an embodiment of the present application;

[0035] FIG15-1 is a second schematic diagram of the DMG perception request frame format provided in an embodiment of the present application;

[0036] FIG15-2 is a third schematic diagram of the DMG perception request frame format provided in an embodiment of the present application;

[0037] FIG16 is a fourth diagram of a DMG perception request frame format provided in an embodiment of the present application;

[0038] FIG17-1 is a fifth diagram of the DMG perception request frame format provided in an embodiment of the present application;

[0039] FIG17-2 is a sixth diagram of the DMG perception request frame format provided in an embodiment of the present application;

[0040] FIG18 is a scene diagram of collaborative single-base sensing in parallel mode provided by an embodiment of the present application;

[0041] FIG19-1 is a schematic diagram of interference when EDMG STA 1 uses a Golay sequence with a space-time stream number of 1, according to an embodiment of the present application;

[0042] FIG19-2 is a schematic diagram showing the situation in which EDMG STA 1 is subjected to LDPC BLK interference when using a Golay sequence with a space-time stream number of 1, according to an embodiment of the present application;

[0043] FIG20-1 is a schematic diagram of interference when EDMG STA 1 uses a Golay sequence with a space-time stream number of 2, according to an embodiment of the present application;

[0044] FIG20-2 is a schematic diagram showing the situation in which EDMG STA 1 is subjected to LDPC BLK interference when using a Golay sequence with a space-time stream number of 2, according to an embodiment of the present application;

[0045] FIG21 is a first schematic diagram of an information indication device provided in an embodiment of the present application;

[0046] FIG22 is a second schematic diagram of the information indication device provided in an embodiment of the present application;

[0047] FIG23 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0048] FIG24 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0049] Figure 25 is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0051] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), or other communication systems. WLAN can support frequency bands including, but not limited to, low frequency bands (2.4 GHz, 5 GHz, 6 GHz) and high frequency bands (60 GHz).

[0052] FIG1 is an example of a communication system architecture applied in an embodiment of the present application.

[0053] As shown in FIG1 , the communication system 100 may include an AP 110 and a STA 120 that accesses the network through the AP 110. In some scenarios, the AP 110 may be referred to as an AP STA, meaning that, in a sense, the AP 110 is also a type of STA. In some scenarios, the STA 120 may be referred to as a non-AP STA. In some scenarios, the STA 120 may include both AP STAs and non-AP STAs. Communication in the communication system 100 may include communication between the AP 110 and the STA 120, communication between the STA 120 and another STA 120, or communication between the STA 120 and a peer STA. A peer STA may refer to a device communicating with the peer of the STA 120. For example, the peer STA may be an AP or a non-AP STA.

[0054] AP 110 can be used as a bridge between wired and wireless networks, connecting wireless network clients together and then connecting the wireless network to Ethernet. AP 110 can be a terminal device (such as a mobile phone) or a network device (such as a router) equipped with a WiFi chip.

[0055] It should be noted that the role of STA 120 in the communication system is not absolute. In other words, the role of STA 120 in the communication system can switch between AP and STA. For example, in some scenarios, when a mobile phone is connected to a router, the mobile phone is a STA. When the mobile phone is used as a hotspot for other mobile phones, the mobile phone plays the role of AP.

[0056] In some embodiments, AP 110 and STA 120 can be devices used in the Internet of Vehicles, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.

[0057] In some embodiments, AP 110 may be a device supporting the 802.11be standard. The AP may also be a device supporting various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a. In some embodiments, STA 120 may support the 802.11be standard. The STA may also support various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0058] In some embodiments, AP 110 and / or STA 120 can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship); can also be deployed in the air (for example, on an airplane, balloon, and satellite, etc.).

[0059] In some embodiments, STA 120 may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) device, an augmented reality (AR) device, a wireless device in industrial control, a set-top box, a wireless device in self-driving, an in-vehicle communication device, a wireless device in remote medical, a wireless device in a smart grid, a wireless device in transportation safety, a wireless device in a smart city or a wireless device in a smart home, an in-vehicle communication device, a wireless communication chip / application specific integrated circuit (ASIC) / system on chip (SoC), etc. that supports WLAN / WiFi technology.

[0060] For example, STA 120 can also be a wearable device. Wearable devices can also be called wearable smart devices, which are a general term for wearable devices that use wearable technology to intelligently design and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include those that are full-featured, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0061] It should be understood that Figure 1 is merely an example of the present application and should not be construed as limiting the present application. For example, Figure 1 only exemplarily illustrates one AP and two STAs. In some embodiments, the communication system 100 may include multiple APs and other numbers of STAs, which are not limited in this embodiment of the present application.

[0062] It should be noted that Figure 1 is merely an example of a system applicable to this application. Of course, the methods described in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the associated objects are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, "A indicates B" can mean that A directly indicates B, for example, B can obtain information through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can obtain information through C; or it can mean that A and B have an association relationship. It should also be understood that the "correspondence" mentioned in the embodiments of this application can mean that there is a direct or indirect correspondence between two objects, or that there is an association relationship between the two objects, or a relationship between an indicator and the indicated, a configuration and the configured, and so on. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be implemented by pre-saving corresponding codes, tables, or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to a standard protocol in the field of communications.

[0063] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0064] Millimeter wave sensing type

[0065] Figure 2 shows the five types of mmWave sensing. Figure 2 (a) illustrates monostatic sensing, where only one device participates in sensing. It senses the environment by transmitting PPDUs and receiving echo signals, similar to the working mode of traditional radar. Figure 2 (b) illustrates bistatic sensing, where two devices participate in sensing. One device transmits a sensing PPDU, and the other receives echo signals to sense the environment. Figure 2 (c) illustrates coordinated monostatic sensing, where more than one device participates in sensing. Each device perceives the environment by transmitting PPDUs and receiving echo signals. A sensing initiator controls all other devices to achieve collaboration. Figure 2 (d) illustrates coordinated bistatic sensing, where more than two devices participate in sensing. In other words, there are at least two pairs of bistatic sensing devices. Each transmitting device transmits a sensing PPDU, which is received by different receiving devices, thereby achieving collaborative sensing. Figure 2 (e) illustrates multistatic sensing, where more than two devices participate in sensing. A transmitting device transmits a sensing PPDU, and multiple receiving devices simultaneously receive echo signals to achieve simultaneous environmental sensing.

[0066] It should be noted that the reflected signal is a signal of the perception PPDU after being reflected by the environment. Therefore, the reflected signal can also be understood as the perception PPDU.

[0067] The sender of the perception PPDU is called the perception sender, and the receiver of the perception PPDU is called the perception receiver.

[0068] Millimeter wave sensing process

[0069] Figure 3 illustrates the general process of millimeter wave sensing, showing, from left to right, the session setup phase, the millimeter wave sensing measurement setup phase, and the sensing measurement phase. The millimeter wave sensing measurement setup phase is also known as the directional multi-gigabit (DMG) sensing measurement setup phase (DMG Measurement setup). The sensing measurement phase consists of multiple sensing measurement bursts, each of which consists of multiple sensing measurement instances, also known as DMG sensing instances. The time interval between bursts is the inter-burst interval, and the time interval between adjacent sensing measurement instances within a burst is the intra-burst interval.

[0070] Millimeter-wave collaborative monostatic sensing measurement example

[0071] There are two modes for the mmWave cooperative monostatic sensing measurement instance: a sequential mode, as shown in Figure 4(a), and a parallel mode, as shown in Figure 4(b).

[0072] The similarities between the sequential mode and the parallel mode are that the perception initiator needs to send a DMG Sensing Request frame to each perception responder in the initial stage of the perception measurement instance, and each perception responder needs to reply with a DMG Sensing Response frame to the perception initiator within the short interframe space (SIFS) time.

[0073] The difference between sequential mode and parallel mode is that in sequential mode, multiple perception responders successively send and receive monostatic perception measurement frames (i.e., Monostatic PPDU) to perceive the environment and send perception measurement report frames (i.e., DMG Sensing Measurement Report) to the perception initiator within the SIFS time; in parallel mode, multiple perception responders simultaneously send and receive Monostatic PPDU to perceive the environment, and then send perception measurement report frames (i.e., DMG Sensing Measurement Report) to the perception initiator in sequence.

[0074] DMG Perception Measurement Settings Elements

[0075] Figure 5 shows the frame format of the DMG Sensing Measurement Setup element. The DMG Sensing Measurement Setup element carries information used to set up a DMG sensing measurement. This element is located in the DMG Sensing Measurement Setup Request frame and the DMG Sensing Measurement Setup Response frame. As shown in Figure 5, the DMG Sensing Measurement Setup element contains the following fields:

[0076] Element ID: Indicates the ID of the DMG perception measurement setting element.

[0077] Length: Indicates the number of bytes in the DMG perception measurement setting element excluding the element ID field and the length field.

[0078] Element ID Extended: Indicates the extended ID of the DMG-aware measurement setting element.

[0079] Measurement Setup Control, which contains the following four fields:

[0080] Sensing Type: Indicates the type of DMG sensing measurement. For specific values ​​and meanings, see Table 1.

[0081] Table 1 - Perception Type Fields

[0082] Value Meaning 0 Coordinated Monostatic 1 Coordinated Bistatic 2 Bistatic

[0083] 3 Multistatic 4-7 Reserved

[0084] RX Initiator: Indicates whether the sensing initiator is a sensing receiver or a sensing sender in a dual-base sensing type. A value of 1 indicates that the sensing initiator is a sensing receiver, and a value of 0 indicates that the sensing initiator is a sensing sender.

[0085] LCI Present: Indicates whether the LCI field is present in the DMG Perception Measurement Settings element. A value of 1 indicates presence, and a value of 0 indicates absence.

[0086] Orientation Present: Indicates whether the peer orientation field is present in the DMG perception measurement setting element. A value of 1 indicates presence, and a value of 0 indicates absence.

[0087] Report Type: Indicates the type of report that the perception initiator expects the perception responder to report. The values ​​and their meanings are shown in Table 2.

[0088] Table 2 - Perception Type Fields

[0089]

[0090] Location Configuration Information (LCI): carries the LCI field in section 9.4.2.21.10 (LCI report (Location configuration information report)) of IEEE 802.11REVme 1.2.

[0091] Peer Orientation: Indicates the direction and distance of the peer device, including three subfields: Azimuth, Elevation, and Range.

[0092] Optional sub-element: Contains zero or more sub-elements. See Table 3 for all sub-elements and their order.

[0093] Table 3 - Optional sub-elements

[0094]

[0095] Time Division Duplex (TDD) beamforming frame

[0096] Figure 6 shows the frame format of a TDD beamforming frame, a type of control frame. A TDD beamforming frame consists of a Media Access Control (MAC) frame header, a MAC frame body, and a frame checksum. The MAC frame body consists of two parts: the TDD Beamforming Control field and the TDD Beamforming Information field. In the TDD Beamforming Control field:

[0097] TDD Beamforming Frame Type: indicates the type of TDD beamforming frame. For specific values ​​and meanings, see Table 4.

[0098] Table 4 - TDD beamforming frame types

[0099] Value Meaning 0TDD Sector Sweep (SSW) 1TDD SSW Feedback 2TDD SSW Ack 3DMG Sensing

[0100] The values ​​0, 1, and 2 all indicate that the TDD beamforming frame is a type related to beam training; the value 3 indicates that the TDD beamforming frame is a type related to DMG perception.

[0101] When the value of the TDD beamforming frame type field is 3, the TDD group beamforming (TDD Group Beamforming) field and the TDD beam measurement (TDD Beam Measurement) field jointly indicate the use of a TDD beamforming frame in DMG perception. The specific values ​​and their meanings are shown in Table 5.

[0102] Table 5 - Usage of TDD beamforming frames

[0103]

[0104] in,

[0105] The TDD group beamforming field value is 0 and the TDD beam measurement field value is 0: indicating that the TDD beamforming frame is a DMG perception request frame.

[0106] The TDD Group Beamforming field value is 0 and the TDD Beam Measurement field value is 1: indicating that the TDD beamforming frame is a DMG perception response frame.

[0107] The TDD Group Beamforming field value is 1 and the TDD Beam Measurement field value is 0: indicating that the TDD beamforming frame is a DMG perception polling frame.

[0108] The following further explains the DMG perception request frame, DMG perception response frame and DMG perception polling frame.

[0109] 1)DMG perception request frame

[0110] The frame format of the DMG perception request frame is shown in Figure 7. The TDD beamforming information field includes the following fields:

[0111] Measurement Setup ID: An identifier indicating the perception measurement setup associated with this frame.

[0112] Measurement Burst ID: an identifier indicating the perception measurement burst associated with this frame.

[0113] Measurement Instance Number: indicates the sequence number of a perception measurement instance in a measurement burst.

[0114] Sensing type: Indicates the sensing type requested by the frame. For specific values ​​and meanings, see Table 6.

[0115] Table 6 - Perception Type Field

[0116] Value meaning

[0117] 0Coordinated Monostatic 1Coordinated Bistatic 2Multistatic 3Reserved

[0118] STA ID: indicates the order in which a STA participates in a perception measurement instance.

[0119] First Beam Index: indicates the index of the first transmit beam used in a perception measurement instance.

[0120] Number of STAs in Instance: indicates the number of STAs participating in the measurement in a perception measurement instance.

[0121] Num of PPDUs in Instance: indicates the number of PPDUs that appear in a perception measurement instance.

[0122] EDMG TRN Length: indicates the number of training units (TRN-Unit) contained in a PPDU.

[0123] RX TRN-Units per Each TX TRN-Unit: indicates the number of TRN-Units sent consecutively in the same direction.

[0124] EDMG TRN-Unit P: indicates the number of TRN subfields in a TRN-Unit whose beam direction is aligned with the peer device.

[0125] EDMG TRN-Unit M: Indicates the number of TRN subfields with variable beam directions in a TRN-Unit.

[0126] EDMG TRN-Unit N: indicates the number of TRN subfields continuously transmitted using the same beam direction in the TRN-Unit-M TRN subfields.

[0127] TRN Subfield Sequence Length: indicates the length of the Golay sequence used by each TRN subfield.

[0128] Bandwidth: Indicates the bandwidth used to send the TRN field.

[0129] 2)DMG perception response frame

[0130] The frame format of the DMG perception response frame is shown in FIG8 . The MAC frame body of the DMG perception response frame only includes the TDD beamforming control field.

[0131] 3)DMG perception polling frame

[0132] The frame format of the DMG perception polling frame is shown in Figure 9. The TDD beamforming information field includes the following fields:

[0133] Measurement Setup ID: An identifier indicating the perception measurement setup associated with this frame.

[0134] Measurement Burst ID: an identifier indicating the perception measurement burst associated with this frame.

[0135] Measurement Instance ID: an identifier indicating the perception measurement instance associated with this frame.

[0136] Golay sequence

[0137] The Golay sequence of regular length is defined in EDMG PHY as follows:

[0138]

[0139] Golay sequences of unconventional lengths are as follows:

[0140]

[0141] Wherein, Ga, Gb, Gc, Gd represent the type of Golay sequence, the subscript represents the length of the Golay sequence, and the superscript i=1, 2, 3, ..., 8 represents the space-time stream number or the transmission link number of the Golay sequence.

[0142] Any Golay sequence has good autocorrelation, which is used for receiving symbol detection; Golay sequences with different space-time stream numbers but the same length and type have good cross-correlation, which is used to reduce interference between different space-time streams. The simulation results of the autocorrelation and cross-correlation of the two sequences are shown in Figure 10. The horizontal axis represents the displacement between the two sequences (i.e., the bit displacement), and the vertical axis represents the cross-correlation operation result between the two sequences (i.e., the cross-correlation value). The cross-correlation operation result is used as an indicator to measure the degree of interference. The larger the cross-correlation value, the greater the degree of interference, and the smaller the cross-correlation value, the smaller the degree of interference. From left to right in Figure 10, they are: The simulation results of the autocorrelation of and The cross-correlation operation results between and The simulation results of the cross-correlation of and The cross-correlation operation results between and The simulation results of the cross-correlation of and The cross-correlation results between and The simulation results of the cross-correlation of and The cross-correlation results between ). The simulation results of the autocorrelation of have a sharp autocorrelation peak, while There are almost no prominent peaks in the simulation results of the cross-correlation between them.

[0143] DMG / EDMG PPDU format

[0144] The DMG control mode PPDU (DMG control mode PPDU) and DMG single carrier mode PPDU (DMG SC mode PPDU) are defined in DMG PHY. Their formats and the types of Golay sequences contained therein are shown in Table 7 and Table 8 respectively.

[0145] Table 7 - DMG control mode PPDU format

[0146]

[0147] Table 8-DMG SC mode PPDU format

[0148]

[0149] EDMG PHY defines EDMG control mode PPDU (EDMG control mode PPDU) and EDMG single carrier mode PPDU (EDMG SC mode PPDU). Their formats and the types of Golay sequences they contain are shown in Table 9 and Table 10 respectively.

[0150] Table 9-EDMG control mode PPDU format

[0151]

[0152] Table 10 - EDMG SC mode PPDU format

[0153]

[0154] LDPC BLK represents the LDPC code block, GI represents the guard interval, NCB represents the number of consecutively occupied 2.16 GHz channels, and TRN_BL represents the length of the TRN subfield indicated by the TRN Subfield Sequence Length field in EDMG-Header-A.

[0155] If the EDMG SC mode PPDU transmits only one space-time flow on a 2.16 GHz channel, the EDMG-STF and EDMG-CEF fields will not exist; if the EDMG SC mode PPDU is only used for SU transmission, the EDMG-Header-B field will not exist.

[0156] In sensing communication, devices participating in sensing send and / or receive sensing PPDUs to achieve sensing measurements. However, when multiple STAs simultaneously send and / or receive sensing PPDUs, mutual interference occurs between STAs, affecting the accuracy of the final sensing measurement. Taking the example of collaborative monostatic sensing measurement as an example, as shown in Figure 4(b), in parallel mode, sensing responder STA A and sensing responder STA B simultaneously send and receive Monostatic PPDUs to achieve parallel sensing measurements. However, in this mode, one STA also receives Monostatic PPDUs sent by other STAs, so mutual interference occurs between STAs, affecting the accuracy of the final sensing measurement.

[0157] In addition, the types of perception PPDUs sent and / or received by STAs and the types of perception fields in the perception PPDUs used to implement perception are not defined in the relevant standards, resulting in a large degree of uncertainty in the degree of interference between STAs. Taking the collaborative single-base perception measurement example, the type / format of the Monostatic PPDU used in the collaborative single-base perception type has not yet been defined in the relevant standards. Therefore, different perception responders may send Monostatic PPDUs of different types / formats. In other words, the training (TRN) field or channel estimation filter (CEF) field for perception sent by one perception responder may be interfered with by any field sent by other perception responders, resulting in randomness and uncertainty in the degree of interference.

[0158] In order to solve at least one of the above problems, the following technical solutions of the embodiments of the present application are proposed, which can effectively solve the interference problem between STAs in perception communication, such as the interference problem in collaborative single-base perception measurement in parallel mode.

[0159] It should be noted that the "first STA" in the embodiment of the present application may be, but is not limited to, a perception initiator. The "second STA" in the embodiment of the present application may be, but is not limited to, a perception responder.

[0160] It should be noted that the "perception PPDU" in the embodiments of the present application may have different names depending on the perception type. For example, for collaborative single-base perception, the perception PPDU is Monostatic PPDU.

[0161] It should be noted that the "space-time flow sequence number" in the embodiment of the present application can also be called the "sending and / or receiving link sequence number".

[0162] FIG11 is a flow chart of an information indication method according to an embodiment of the present application. As shown in FIG11 , the information indication method includes the following steps:

[0163] Step 1101: The first STA sends at least one of the first information, the second information and the third information to one or more second STAs, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0164] Step 1102: The second STA receives at least one of the first information, second information and third information sent by the first STA, where the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0165] In an embodiment of the present application, a first STA sends at least one piece of information to one or more second STAs, where the at least one piece of information includes at least one of the following: first information, second information, and third information, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the type of the perception field used for the perception PPDU. For each second STA, the second STA receives the at least one piece of information sent by the first STA.

[0166] Here, the value and meaning of the space-time stream number of the Golay sequence can refer to the description of the aforementioned related solutions.

[0167] Here, the type of the perception PPDU includes at least one of the following: DMG control mode PPDU; DMG SC mode PPDU; EDMG control mode PPDU; EDMG SC mode PPDU. The formats of these types of perception PPDUs and the types of Golay sequences contained therein can refer to the description of the aforementioned related solutions.

[0168] Here, the perception field type includes at least one of the following: a TRN field; a CEF field. The Golay sequences contained in these types of perception fields can refer to the description of the aforementioned related solutions.

[0169] In some implementations, the space-time stream sequence numbers of the Golay sequences indicated by the first information sent by the first STA to each of the one or more second STAs are different.

[0170] In some implementations, the type of the perception PPDU indicated by the second information sent by the first STA to each of the one or more second STAs may be the same or different.

[0171] In some implementations, the perception field types indicated by the third information sent by the first STA to each of the one or more second STAs may be the same or different.

[0172] In the embodiment of the present application, a frame format that carries at least one of the above information is designed, and the implementation scheme of the frame format is described below.

[0173] Option 1

[0174] In some embodiments, during the sensing measurement setup phase, the first STA sends a DMG sensing measurement setup element (DMG Sensing Measurement Setup element) to one or more second STAs, and accordingly, the second STA receives the DMG sensing measurement setup element sent by the first STA, where the DMG sensing measurement setup element carries at least one of the first information, the second information, and the third information.

[0175] In some embodiments, the DMG perception measurement setting element includes an optional sub-element field, where the optional sub-element field is used to carry a first sub-element, and the first sub-element carries at least one of the first information, the second information, and the third information.

[0176] In some embodiments, the first sub-element includes at least one of a first field, a second field, and a third field, wherein the first field is used to carry the first information, the second field is used to carry the second information, and the third field is used to carry the third information. Furthermore, the first sub-element also includes at least one of the following fields: a sub-element identification field, used to indicate the identification of the first sub-element; and a length field, used to indicate the length of fields in the first sub-element other than the sub-element identification field and the length field.

[0177] In some implementations, the DMG perception measurement setup element is carried in a DMG perception measurement setup request frame. Here, during the perception measurement setup phase, the DMG perception measurement setup request frame is sent from the perception initiator (i.e., the first STA) to the perception responder (i.e., the second STA).

[0178] In one example, by defining a new sub-element type (i.e., the first sub-element) in the optional sub-element field of the DMG perception measurement setup element, it is possible to transmit the space-time stream number information (i.e., the first information) of the Golay sequence during the perception measurement setup phase. The newly defined optional sub-element is shown in Table 11, with the corresponding sub-element ID being 4 and the sub-element name being "Extended Configuration."

[0179] Table 11 - Optional sub-elements

[0180]

[0181] Table 11 is only an example. The names and IDs of the newly defined sub-elements are not limited to those shown in Table 11. Taking the example shown in Table 11 as an example, the Extended Configuration sub-element is used to carry extended configuration information. The specific frame format is shown in Figure 12. The Extended Configuration sub-element in Figure 12 includes the following fields:

[0182] Subelement ID: The value is any integer between 4 and 255. The value 4 is used here for example only.

[0183] Length: Indicates the number of bytes of the element excluding the sub-element ID field and the length field.

[0184] Golay Sequence Space-Time Stream Index of Golay Sequence: Indicates the space-time stream index of the Golay sequence used by the sensing PPDU. For example, it indicates the space-time stream index of the Golay sequence used by the Monostatic PPDU sent by the sensing responder in a coordinated single-base sensing type. The specific values ​​and meanings of the Golay sequence space-time stream index are shown in Table 12.

[0185] Table 12 - Golay sequence space-time stream sequence number

[0186] Value meaning 0112233445566778

[0187] In the above example, the field corresponding to the Golay sequence space-time stream number is the first field. Of course, the name of the first field can also be other names. This application does not limit the name of the first field and the number of bits occupied by the first field.

[0188] In one example, by defining a new sub-element type (i.e., the first sub-element) in the optional sub-element field in the DMG perception measurement setting element, it is possible to transmit the space-time stream sequence number information of the Golay sequence (i.e., the first information), the type information of the perception PPDU (i.e., the second information), and the type information of the perception field in the perception PPDU (i.e., the third information) in the perception measurement setting stage. The newly defined optional sub-element can refer to Table 11 above, the corresponding sub-element ID is 4, and the sub-element name is "Extended Configuration". The newly defined Extended Configuration sub-element is used to carry extended configuration information, and the specific frame format is shown in Figure 13. The Extended Configuration sub-element in Figure 13 includes the following fields:

[0189] Subelement ID: The value is any integer between 4 and 255. The value 4 is used here for example only.

[0190] Length: Indicates the number of bytes of the element excluding the sub-element ID and length fields.

[0191] Golay Sequence Space-Time Stream Index of Golay Sequence: Indicates the space-time stream index of the Golay sequence used by the perception PPDU, for example, the space-time stream index of the Golay sequence used by the Monostatic PPDU sent by the perception responder in a coordinated single-base perception type. The specific values ​​and meanings of the Golay sequence space-time stream index can be found in Table 12 above.

[0192] Perception PPDU Type: Indicates the type of perception PPDU used by the perception responder, for example, the type of Monostatic PPDU used by the perception responder in a coordinated single-base perception type. Specific values ​​and meanings of the perception PPDU type are shown in Table 13.

[0193] Table 13 - Perception PPDU Type

[0194]

[0195] in,

[0196] DMG control mode PPDU: refers to the DMG control mode PPDU format defined in IEEE DMG PHY (the Data field length is 0). This format can refer to the description of the aforementioned related solutions;

[0197] DMG SC mode PPDU: refers to the DMG SC mode PPDU format defined in IEEE DMG PHY (the Data field length is 0). This format can refer to the description of the aforementioned related solutions;

[0198] EDMG control mode PPDU: refers to the EDMG control mode PPDU format defined in IEEE EDMG PHY (the Data field length is 0). This format can refer to the description of the aforementioned related solutions;

[0199] EDMG SC mode PPDU: refers to the EDMG SC mode PPDU format defined in IEEE EDMG PHY (the Data field length is 0). The format can refer to the description of the aforementioned related solutions.

[0200] Sensing Field Type: Indicates whether the field used to sense the channel in the sensing PPDU sent and / or received by the sensing responder is the TRN field or the CEF field. For example, in a coordinated single-base sensing type, the field used to sense the channel in the Monostatic PPDU sent and / or received by the sensing responder is the TRN field or the CEF field. For example, a value of 1 indicates the TRN field, and a value of 0 indicates the CEF field.

[0201] In the above example, the field corresponding to the Golay sequence space-time stream number is the first field, the field corresponding to the perception PPDU type is the second field, and the field corresponding to the perception field type is the third field. Of course, the names of the first field, the second field, and the third field can also be other names. This application does not limit the names of the first field, the second field, and the third field and the number of bits occupied.

[0202] Option 2

[0203] In some embodiments, during the perception measurement instance phase, the first STA sends a DMG perception request (DMG Sensing Request) frame to one or more second STAs, and accordingly, the second STA receives the DMG perception request frame sent by the first STA, where the DMG perception request frame carries at least one of the first information, the second information, and the third information.

[0204] In some embodiments, at least one of the first information, the second information, and the third information is carried in a TDD beamforming information field in the DMG perception request frame.

[0205] In some embodiments, the TDD beamforming information field includes at least one of a fourth field, a fifth field, and a sixth field, the fourth field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

[0206] Here, the fourth field, the fifth field, and the sixth field are newly added fields in the TDD beamforming information field.

[0207] In some embodiments, the TDD beamforming information field includes at least one of a STA identification field, a fifth field, and a sixth field, the STA identification field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

[0208] Here, the STA identification field is an existing field in the TDD beamforming information field, and the fifth field and the sixth field are newly added fields in the TDD beamforming information field.

[0209] Here, when the perception type is first type perception, the STA identification field is used to indicate the identification of the perception responder and the space-time stream number of the Golay sequence used to indicate the perception PPDU. When the perception type is second type perception, the STA identification field is used to indicate the index of the receiving STA synchronization subfield in the perception PPDU. As an example, the first type perception is coordinated single-base perception. The second type perception is multi-base perception.

[0210] Optionally, the TDD beamforming information field further includes a seventh field; if the sensing type is not first type sensing, the seventh field is reserved. If the sensing type is first type sensing, the seventh field is used to indicate whether the sensing measurement instance corresponding to the first type sensing is a sequential mode or a parallel mode. As an example, the first type sensing is cooperative single-base sensing.

[0211] In some implementations, the TRN-related fields in the TDD beamforming information field in the DMG perception request frame sent by the first STA to each of the one or more second STAs have the same value. Here, the TRN-related fields include at least one of the following fields:

[0212] The EDMG TRN length field is used to indicate the number of TRN-Units contained in a perception PPDU;

[0213] The RX TRN-Unit number field of the TX TRN-Unit is used to indicate the number of TRN-Units sent continuously in the same direction;

[0214] The EDMG TRN-Unit P field is used to indicate the number of TRN subfields in a TRN-Unit that indicate the beam direction toward the peer device;

[0215] The EDMG TRN-Unit M field is used to indicate the number of TRN subfields with variable beam directions in a TRN-Unit;

[0216] The EDMG TRN-Unit N field is used to indicate the number of TRN subfields sent continuously using the same beam direction in the TRN-Unit-M TRN subfields;

[0217] The TRN subfield sequence length field is used to indicate the length of the Golay sequence used by each TRN subfield;

[0218] The bandwidth field is used to indicate the bandwidth used to send the TRN field.

[0219] In one example, the space-time stream index information of the Golay sequence (i.e., the first information) can be transmitted during the perception measurement instance phase through the DMG perception request frame. Specifically, a new subfield is defined in the TDD beamforming information field of the DMG perception request frame to transmit the space-time stream index information of the Golay sequence. The newly defined subfield (i.e., the fourth field) is shown in Figure 14, and the corresponding field name is Space-time Stream Index of Golay Sequence.

[0220] Golay Sequence Space-Time Stream Index of Golay Sequence: Indicates the space-time stream index of the Golay sequence used by the perception PPDU. For example, it indicates the space-time stream index of the Golay sequence used by the Monostatic PPDU sent by the perception responder in the coordinated single-base perception type. For specific values ​​and meanings of the Golay sequence space-time stream index, refer to Table 12 above.

[0221] The meanings of other fields in the DMG perception request frame shown in Figure 14 above can be referred to the description of the aforementioned related schemes.

[0222] In the above example, the field corresponding to the Golay sequence space-time stream number is the fourth field. Of course, the name of the fourth field can also be other names. This application does not limit the name of the fourth field and the number of bits occupied by the fourth field.

[0223] In one example, the DMG Perception Request frame can be used to transmit the space-time stream number information (i.e., the first information) of the Golay sequence during the perception measurement instance phase. Specifically, the space-time stream number information of the Golay sequence is transmitted by reusing the existing STA ID field in the DMG Perception Request frame. The STA ID field is shown in Figure 15-1.

[0224] STA ID: When the perception type is the second type of perception (such as multi-base perception), it indicates the index of the receiving STA synchronization subfield in the perception PPDU (such as EDMG Multistatic Sensing PPDU); when the perception type is the first type of perception (such as collaborative single-base perception), it not only indicates the ID of a perception responder, but also indicates the space-time stream number of the Golay sequence used by the perception PPDU (such as Monostatic PPDU) sent and / or received by the perception responder. The specific value and meaning of the Golay sequence space-time stream number can be referred to the aforementioned Table 12.

[0225] Optionally, a perception measurement instance mode field (ie, the seventh field) may be added to the TDD beamforming information field in the DMG perception request frame, as shown in Figure 15-2.

[0226] Perception Measurement Instance Mode: When the perception type is not Type I perception (e.g., collaborative single-base perception), this field is reserved. When the perception type is Type I perception (e.g., collaborative single-base perception), this field indicates whether the mode of the perception measurement instance for Type I perception is sequential or parallel. For example, a value of 1 indicates sequential mode, and a value of 0 indicates parallel mode.

[0227] The meanings of other fields in the DMG perception request frame shown in Figures 15-1 and 15-2 above can be referred to the description of the aforementioned related schemes.

[0228] In the above example, the field corresponding to the perception measurement instance mode is the seventh field. Of course, the name of the seventh field can also be other names. This application does not limit the name of the seventh field and the number of bits occupied by the seventh field. For example, the name of the seventh field can also be "Coordinated Monostatic Sequential / Parallel".

[0229] In one example, the DMG perception request frame can be used to transmit the space-time stream index of the Golay sequence (i.e., the first information), the type information of the perception PPDU (i.e., the second information), and the type information of the perception field in the perception PPDU (i.e., the third information) during the perception measurement instance phase. Specifically, a new subfield is defined in the TDD beamforming information field of the DMG perception request frame to transmit the space-time stream index of the Golay sequence, the type information of the perception PPDU, and the type information of the perception field. The newly defined subfields (i.e., the fourth field, the fifth field, and the sixth field) are shown in Figure 16, and the corresponding field names are respectively Golay sequence space-time stream index (Space-time Stream Index of Golay Sequence), perception PPDU type, and perception field type.

[0230] Golay Sequence Space-Time Stream Index of Golay Sequence: Indicates the space-time stream index of the Golay sequence used by the perception PPDU. For example, it indicates the space-time stream index of the Golay sequence used by the Monostatic PPDU sent by the perception responder in the coordinated single-base perception type. For specific values ​​and meanings of the Golay sequence space-time stream index, refer to Table 12 above.

[0231] Sensing PPDU Type: Indicates the type of sensing PPDU, for example, the type of Monostatic PPDU used by the sensing responder in the coordinated single-base sensing type. The specific value and meaning of the sensing PPDU type can be referred to in Table 13 above.

[0232] Sensing Field Type: Indicates whether the field used to sense the channel in the sensing PPDU sent and / or received by the sensing responder is the TRN field or the CEF field. For example, in a coordinated single-base sensing type, the field used to sense the channel in the Monostatic PPDU sent and / or received by the sensing responder is the TRN field or the CEF field. For example, a value of 1 indicates the TRN field, and a value of 0 indicates the CEF field.

[0233] The meanings of other fields in the DMG perception request frame shown in Figure 16 above can refer to the description of the aforementioned related scheme. Among them, the values ​​of the TRN-related fields in the TDD beamforming information field in the DMG perception request frame sent by the first STA to each STA remain consistent. Here, the TRN-related fields include at least one of the following fields: EDMG TRN Length field, the number of RX TRN-Units per Each TX TRN-Unit field, EDMG TRN-Unit P field, EDMG TRN-Unit M field, EDMG TRN-Unit N, TRN subfield sequence length field, and bandwidth field.

[0234] In the above example, the field corresponding to the Golay sequence space-time stream number is the fourth field, the field corresponding to the perception PPDU type is the fifth field, and the field corresponding to the perception field type is the sixth field. Of course, the names of the fourth field, the fifth field, and the sixth field can also be other names. This application does not limit the names of the fourth field, the fifth field, and the sixth field and the number of bits occupied.

[0235] In one example, the DMG perception request frame can be used to transmit the space-time stream sequence number information of the Golay sequence (i.e., the first information), the type information of the perception PPDU (i.e., the second information), and the type information of the perception field in the perception PPDU (i.e., the third information) in the perception measurement instance stage. Specifically, the space-time stream sequence number information of the Golay sequence is transmitted by reusing the existing STA ID field in the TDD beamforming information field of the DMG perception request frame, and the type information of the perception PPDU and the type information of the perception field are transmitted by defining a new subfield in the TDD beamforming information field of the DMG perception request frame. The STA ID field and the newly defined subfields (i.e., the fifth field and the sixth field) are shown in Figure 17-1, and the corresponding field names are STA ID field, perception PPDU type, and perception field type, respectively.

[0236] STA ID: When the perception type is the second type of perception (such as multi-base perception), it indicates the index of the receiving STA synchronization subfield in the perception PPDU (such as EDMG Multistatic Sensing PPDU); when the perception type is the first type of perception (such as collaborative single-base perception), it not only indicates the ID of a perception responder, but also indicates the space-time stream number of the Golay sequence used by the perception PPDU (such as Monostatic PPDU) sent and / or received by the perception responder. The specific value and meaning of the Golay sequence space-time stream number can be referred to the aforementioned Table 12.

[0237] Sensing PPDU Type: Indicates the type of sensing PPDU, for example, the type of Monostatic PPDU used by the sensing responder in the coordinated single-base sensing type. The specific value and meaning of the sensing PPDU type can be referred to in Table 13 above.

[0238] Sensing Field Type: Indicates whether the field used to sense the channel in the sensing PPDU sent and / or received by the sensing responder is the TRN field or the CEF field. For example, in a coordinated single-base sensing type, the field used to sense the channel in the Monostatic PPDU sent and / or received by the sensing responder is the TRN field or the CEF field. For example, a value of 1 indicates the TRN field, and a value of 0 indicates the CEF field.

[0239] Optionally, a perception measurement instance mode field (ie, the seventh field) may be added to the TDD beamforming information field in the DMG perception request frame, as shown in Figure 17-2.

[0240] Perception Measurement Instance Mode: When the perception type is not Type I perception (e.g., collaborative single-base perception), this field is reserved. When the perception type is Type I perception (e.g., collaborative single-base perception), this field indicates whether the mode of the perception measurement instance for Type I perception is sequential or parallel. For example, a value of 1 indicates sequential mode, and a value of 0 indicates parallel mode.

[0241] The meanings of other fields in the DMG perception request frame shown in Figures 17-1 and 17-2 above can refer to the description of the aforementioned related schemes. Among them, the values ​​of the TRN-related fields in the TDD beamforming information field in the DMG perception request frame sent by the first STA to each STA remain consistent. Here, the TRN-related fields include at least one of the following fields: EDMG TRN Length field, the number of RX TRN-Units per Each TX TRN-Unit (RXTRN-Units per Each TX TRN-Unit) field, EDMG TRN-Unit P field, EDMG TRN-Unit M field, EDMG TRN-Unit N, TRN subfield sequence length (TRN Subfield Sequence Length) field, and bandwidth field.

[0242] In the above example, the field corresponding to the perception PPDU type is the fifth field, the field corresponding to the perception field type is the sixth field, and the field corresponding to the perception measurement instance mode is the seventh field. Of course, the names of the fifth, sixth, and seventh fields may also be other names. This application does not limit the names of the fifth, sixth, and seventh fields or the number of bits they occupy. For example, the name of the seventh field may also be "Coordinated Monostatic Sequential / Parallel."

[0243] In some embodiments, after the second STA obtains at least one of the first information, the second information, and the third information from the first STA, the second STA sends a perception PPDU and / or receives a perception PPDU based on at least one of the first information, the second information, and the third information.

[0244] According to the technical solution of the embodiments of the present application, during the sensing measurement setup phase, a first STA (e.g., a sensing initiator) transmits at least one of the following information to each second STA (e.g., a sensing responder): a Golay sequence space-time stream number (also known as a transmission link number), sensing PPDU type information, and sensing field type information. The Golay sequence space-time stream number information indicates the space-time stream number of the Golay sequence used by the sensing PPDU transmitted and / or received by the second STA (e.g., the sensing responder). This reduces mutual interference between STAs by allowing different second STAs (e.g., the sensing responders) to transmit and / or receive sensing PPDUs with Golay sequences having different space-time stream numbers. The sensing PPDU type information indicates the type of sensing PPDU used by the second STA (e.g., the sensing responder), and the sensing field type information indicates the type of sensing field in the sensing PPDU used by the second STA (e.g., the sensing responder). In this way, different second STAs (e.g., the sensing responders) transmit and / or receive sensing PPDUs in a specific format, ensuring that the TRN field or CEF field used for sensing sent by one second STA is not interfered with by any field sent by another second STA.

[0245] In order to verify the anti-interference performance of the technical solution of the embodiment of the present application, simulation results under various interference conditions are given below.

[0246] From the above related technologies, it can be seen that the CEF field and TRN field in the DMG PPDU and the L-CEF field in the EDMG PPDU are all generated by Ga 128 and Gb 128 The TRN field in EDMG PPDU is composed of Ga TRN_BL ,Gb TRN_BL or However, EDMG PHY stipulates that an EDMG STA must support Golay sequences of lengths 128 and 256, so the TRN field in the EDMG PPDU must support the use of Golay sequences. 128 and Gb 128Since the existing standards have not yet specified whether only TRN field or CEF field can be used to realize perception in cooperative single-base perception, both fields can be used to realize perception. In order to reduce the simulation pressure and without loss of generality, it is assumed that the Ga 128 Take the example to verify the interference caused by different fields of other PPDUs.

[0247] The simulation scenarios are as follows: 1) A parallel mode collaborative single-base perception (as shown in Figure 18), in which an AP acts as a perception initiator, responsible for setting and scheduling other perception responders, and a DMG STA and two EDMG STAs (EDMG STA 1 and EDMG STA 2) act as perception responders and simultaneously transmit and receive Monostatic PPDUs under the scheduling of the perception initiator; 2) Using the above-mentioned scheme of the embodiment of the present application, the type and perception field type of the Monostatic PPDU transmitted and received by each perception responder are not set, and only the space-time stream sequence number of the Golay sequence used by each perception responder is set; 3) All perception responders only send Monostatic PPDUs of a single space-time stream, but the sequence numbers of the space-time streams used can be different, the number of 2.16GHz channels occupied by the two EDMG STAs can be different, and the format and length of the Monostatic PPDUs sent by different perception responders may be different; 4) The fields used for perception by different perception responders may be the same or different. If the CEF field is used as the perception field, different perception responders use different beams to send the entire Monostatic PPDU, if the TRN field is used as the perception field, different perception responders only use different beams to send the TRN field part in the Monostatic PPDU; 5) Take one of the EDMG STA 1 as the observation object and observe the CEF field in the Monostatic PPDU or the Ga field in the TRN field that the EDMG STA 1 sends and receives. 128 The degree of interference caused by Monostatic PPDUs sent by other sensing responders; 6) The cross-correlation operation result between two sequences is used as an indicator to measure the degree of interference. A strong cross-correlation indicates that there may be strong interference, and a weak cross-correlation indicates that there is less interference; the LDPC BLK field is replaced by a random sequence of length 128.

[0248] According to current technology, EDMG STA 1 and EDMG STA 2 both use the same Golay sequence with the space-time stream number 1. At this time, the CEF field or TRN field of EDMG STA 1 The possible interference is shown in Figures 19-1 and 19-2. The horizontal axis represents the displacement between the two sequences (i.e., bit displacement), and the vertical axis represents the cross-correlation operation result between the two sequences (i.e., cross-correlation value). The cross-correlation operation result is used as an indicator to measure the degree of interference. The larger the cross-correlation value, the greater the interference degree, and the smaller the cross-correlation value, the smaller the interference degree. Figure 19-1 shows that EDMG STA 1 uses the Golay sequence with space-time stream number 1 (i.e., ) when the interference situation, Figure 19-1 from left to right:

[0249] 1-1) and The simulation results of the cross-correlation of and The cross-correlation operation results between

[0250] here, The field exists in the CEF field or TRN field sent by EDMG STA 1. Exists in the EDMG-STF, EDMG-CEF, Data, and TRN fields sent by EDMG STA 2.

[0251] 1-2) and The simulation results of the cross-correlation of and The cross-correlation operation results between

[0252] here, The field exists in the CEF field or TRN field sent by EDMG STA 1. Exists in the EDMG-STF, EDMG-CEF, and TRN fields sent by EDMG STA 2.

[0253] 1-3) and The simulation results of the autocorrelation of and The cross-correlation operation results between

[0254] Here, the former Present in the CEF field or TRN field sent by EDMG STA 1. It exists in the STF, CEF, and TRN fields sent by the DMG STA and the L-STF, L-CEF, and TRN fields sent by the EDMG STA 2.

[0255] 1-4) and The simulation results of the autocorrelation of and The cross-correlation operation results between

[0256] here, The field exists in the CEF field or TRN field sent by EDMG STA 1. Exists in the L-STF, L-CEF, L-TRN, and TRN fields sent by EDMG STA 2.

[0257] 1-5) and Ga 64 The simulation results of the cross-correlation of and Ga 64 The cross-correlation operation results between

[0258] here, Exists in the CEF field or TRN field sent by EDMG STA 1. 64 It exists in the Header, Data, and AGC fields sent by the DMG STA and the L-Header and EDMG-Header-A fields sent by the EDMG STA 2.

[0259] 1-6) and Gb 64 The simulation results of the cross-correlation of and Gb 64 The cross-correlation operation results between

[0260] here, Present in the CEF field or TRN field sent by EDMG STA 1. Gb 64 Present in the AGC field sent by the DMG STA.

[0261] 1-7) and Ga 32 The simulation results of the cross-correlation of and Ga 32 The cross-correlation operation results between

[0262] here, Exists in the CEF field or TRN field sent by EDMG STA 1. 32 It exists in the Header and Data fields sent by the DMG STA and the L-Header, EDMG-Header-A, EDMG-Header-B, and Data fields sent by EDMG STA 2.

[0263] 1-8) The simulation results of the cross-correlation between LDPC BLK and and the cross-correlation operation result between LDPC BLK).

[0264] here, It exists in the CEF field or TRN field sent by EDMG STA 1. The LDPC BLK exists in the Header and Data fields sent by DMG STA and the L-Header, EDMG-Header-A, EDMG-Header-B, and Data fields sent by EDMG STA 2.

[0265] The LDPC BLK in 1-8) above can be further distinguished. Figure 19-2 shows that DMG STA 1 uses the Golay sequence with space-time stream number 1 (i.e. ) is interfered by LDPC BLK, as shown in Figure 19-2 from left to right:

[0266] 1-8.1) The simulation results of the cross-correlation of LDPC BLK1 (i.e. and the cross-correlation operation result between LDPC BLK1).

[0267] 1-8.2) The simulation results of the cross-correlation between LDPC BLK2 and LDPC BLK2 (i.e. and the cross-correlation operation result between LDPC BLK2).

[0268] 1-8.3) The simulation results of the cross-correlation of LDPC BLK3 (i.e. and the cross-correlation operation result between LDPC BLK3).

[0269] 1-8.4) The simulation results of the cross-correlation of LDPC BLK4 (i.e. and the cross-correlation operation result between LDPC BLK4).

[0270] 1-8.5) The simulation results of the cross-correlation of LDPC BLK5 (i.e. and the cross-correlation operation result between LDPC BLK5).

[0271] 1-8.6) The simulation results of the cross-correlation of LDPC BLK6 (i.e. and the cross-correlation operation result between LDPC BLK6).

[0272] 1-8.7) The simulation results of the cross-correlation of LDPC BLK7 (i.e. and the cross-correlation operation result between LDPC BLK7).

[0273] 1-8.8) The simulation results of the cross-correlation of LDPC BLK8 (i.e. and the cross-correlation operation result between LDPC BLK8).

[0274] As can be seen from Figures 19-1 and 19-2, and The simulation results of the cross-correlation of and The simulation results of the cross-correlation of and The simulation results of the autocorrelation of EDMG STA 2 show a prominent peak. It can be seen that the EDMG-STF, EDMG-LTF, Data, and TRN fields sent by EDMG STA 2 are EDMG-STF, EDMG-LTF, TRN fields The STF, CEF, and TRN fields sent by the DMG STA and the L-STF, L-CEF, and TRN fields sent by the EDMG STA 2 With EDMG STA 1 There is a strong cross-correlation (ie), which may cause strong interference; while other Golay sequences and The mutual correlation is weak, and the interference generated is small.

[0275] According to the technology of the present application, in the perception measurement setting phase or the perception measurement instance phase, the perception initiator configures different space-time stream numbers for each perception responder participating in the collaborative single-base perception measurement, so that the Golay sequences used by the Monostatic PPDUs sent by different perception responders are different. Here, the Golay sequence space-time stream number of EDMG STA 1 is configured to be 2, and the Golay sequence space-time stream number of EDMG STA1 is configured to be 1. DMG STA does not support multi-time and space-time stream transmission, so the space-time stream number of the Golay sequence cannot be configured. At this time, the CEF field or TRN field of EDMG STA 1 The possible interference is shown in Figure 20-1 and Figure 20-2. The horizontal axis represents the displacement between the two sequences (i.e., bit displacement), and the vertical axis represents the cross-correlation operation result between the two sequences (i.e., cross-correlation value). The cross-correlation operation result is used as an indicator to measure the degree of interference. The larger the cross-correlation value, the greater the interference degree, and the smaller the cross-correlation value, the smaller the interference degree. Figure 20-1 shows that EDMG STA 1 uses the Golay sequence with space-time stream number 2 (i.e., ) when the interference situation, Figure 20-1 from left to right:

[0276] 2-1) and The simulation results of the cross-correlation of and The cross-correlation operation results between

[0277] here, The field exists in the CEF field or TRN field sent by EDMG STA 1. Exists in the EDMG-STF, EDMG-CEF, Data, and TRN fields sent by EDMG STA 2.

[0278] 2-2) and The simulation results of the cross-correlation of and The cross-correlation operation results between

[0279] here, The field exists in the CEF field or TRN field sent by EDMG STA 1. Exists in the EDMG-STF, EDMG-CEF, and TRN fields sent by EDMG STA 2.

[0280] 2-3) and The simulation results of the cross-correlation of and The cross-correlation operation results between

[0281] here, The field exists in the CEF field or TRN field sent by EDMG STA 1. It exists in the STF, CEF, and TRN fields sent by the DMG STA and the L-STF, L-CEF, and TRN fields sent by the EDMG STA 2.

[0282] 2-4) and The simulation results of the autocorrelation of and The cross-correlation operation results between

[0283] here, The field exists in the CEF field or TRN field sent by EDMG STA 1. Exists in the L-STF, L-CEF, L-TRN, and TRN fields sent by EDMG STA 2.

[0284] 2-5) and Ga 64 The simulation results of the cross-correlation of and Ga 64 The cross-correlation operation results between

[0285] here, Exists in the CEF field or TRN field sent by EDMG STA 1. 64 It exists in the Header, Data, and AGC fields sent by the DMG STA and the L-Header and EDMG-Header-A fields sent by the EDMG STA 2.

[0286] 2-6) and Gb 64 The simulation results of the cross-correlation of and Gb 64 The cross-correlation operation results between

[0287] here, Present in the CEF field or TRN field sent by EDMG STA 1. Gb 64 Present in the AGC field sent by the DMG STA.

[0288] 2-7) and Ga 32 The simulation results of the cross-correlation of and Ga 32 The cross-correlation operation results between

[0289] here, Exists in the CEF field or TRN field sent by EDMG STA 1. 32 It exists in the Header and Data fields sent by the DMG STA and the L-Header, EDMG-Header-A, EDMG-Header-B, and Data fields sent by EDMG STA 2.

[0290] 2-8) The simulation results of the cross-correlation between LDPC BLK and and the cross-correlation operation result between LDPC BLK).

[0291] here, It exists in the CEF field or TRN field sent by EDMG STA 1. The LDPC BLK exists in the Header and Data fields sent by DMG STA and the L-Header, EDMG-Header-A, EDMG-Header-B, and Data fields sent by EDMG STA 2.

[0292] The LDPC BLK in 2-8) above can be further distinguished. Figure 20-2 shows that DMG STA 1 uses the Golay sequence with space-time stream number 2 (i.e. ) is interfered by LDPC BLK, as shown in Figure 20-2 from left to right:

[0293] 2-8.1) The simulation results of the cross-correlation of LDPC BLK1 (i.e. and the cross-correlation operation result between LDPC BLK1).

[0294] 2-8.2) The simulation results of the cross-correlation between LDPC BLK2 and LDPC BLK2 (i.e. and the cross-correlation operation result between LDPC BLK2).

[0295] 2-8.3) The simulation results of the cross-correlation of LDPC BLK3 (i.e. and the cross-correlation operation result between LDPC BLK3).

[0296] 2-8.4) The simulation results of the cross-correlation of LDPC BLK4 (i.e. and the cross-correlation operation result between LDPC BLK4).

[0297] 2-8.5) The simulation results of the cross-correlation of LDPC BLK5 (i.e. and the cross-correlation operation result between LDPC BLK5).

[0298] 2-8.6) The simulation results of the cross-correlation of LDPC BLK6 (i.e. and the cross-correlation operation result between LDPC BLK6).

[0299] 2-8.7) The simulation results of the cross-correlation of LDPC BLK7 (i.e. and the cross-correlation operation result between LDPC BLK7).

[0300] 2-8.8) The simulation results of the cross-correlation of LDPC BLK8 (i.e. and the cross-correlation operation result between LDPC BLK8).

[0301] As shown in Figure 20-1 and Figure 20-2, EDMG STA 1 sends The correlation with the sequences in all fields sent by other STAs is relatively weak, that is, the CEF field or TRN field of EDMG STA 1 The sequences are less subject to interference, which can reduce the mutual interference problem in collaborative single-base sensing in parallel mode.

[0302] FIG21 is a schematic diagram 1 of an information indication device provided in an embodiment of the present application, which is applied to a first STA. As shown in FIG21 , the device includes:

[0303] The sending unit 2101 is used to send at least one of the first information, the second information and the third information to one or more second STAs, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0304] In some embodiments, the sending unit 2101 is configured to send a DMG perception measurement setting element to one or more second STAs, where the DMG perception measurement setting element carries at least one of the first information, the second information, and the third information.

[0305] In some embodiments, the DMG perception measurement setting element includes an optional sub-element field, where the optional sub-element field is used to carry a first sub-element, and the first sub-element carries at least one of the first information, the second information, and the third information.

[0306] In some embodiments, the first sub-element includes at least one of a first field, a second field, and a third field, the first field is used to carry the first information, the second field is used to carry the second information, and the third field is used to carry the third information.

[0307] In some implementations, the first sub-element further includes at least one of the following fields:

[0308] A sub-element identification field, used to indicate the identification of the first sub-element;

[0309] The length field is used to indicate the length of the fields in the first sub-element except the sub-element identification field and the length field.

[0310] In some implementations, the DMG awareness measurement setting element is carried in a DMG awareness measurement setting request frame.

[0311] In some implementations, the sending unit 2101 is configured to send a DMG perception request frame to one or more second STAs, where the DMG perception request frame carries at least one of the first information, the second information, and the third information.

[0312] In some embodiments, at least one of the first information, the second information, and the third information is carried in a time division multiplexing TDD beamforming information field in the DMG perception request frame.

[0313] In some embodiments, the TDD beamforming information field includes at least one of a fourth field, a fifth field, and a sixth field, the fourth field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

[0314] In some embodiments, the TDD beamforming information field includes at least one of a STA identification field, a fifth field, and a sixth field, the STA identification field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

[0315] In some implementations, when the perception type is the first type perception, the STA identification field is used to indicate the identification of the perception responder and the space-time stream number of the Golay sequence used to indicate the perception PPDU.

[0316] In some implementations, for the case where the perception type is the second type perception, the STA identification field is used to indicate the index of the receiving STA synchronization subfield in the perception PPDU.

[0317] In some embodiments, the TDD beamforming information field further includes a seventh field; for the case where the perception type is first type perception, the seventh field is used to indicate whether the mode of the perception measurement instance corresponding to the first type perception is a sequential mode or a parallel mode.

[0318] In some embodiments, the value of the field related to the training TRN in the TDD beamforming information field in the DMG perception request frame sent by the first STA to each of the one or more second STAs is the same.

[0319] In some implementations, the TRN-related fields include at least one of the following fields:

[0320] The EDMG TRN length field is used to indicate the number of TRN-Units contained in a perception PPDU;

[0321] The number of RX TRN-Units field of each TX TRN-Unit is used to indicate the number of TRN-Units sent continuously in the same direction;

[0322] The EDMG TRN-Unit P field is used to indicate the number of TRN subfields in a TRN-Unit that indicate the beam direction toward the peer device;

[0323] The EDMG TRN-Unit M field is used to indicate the number of TRN subfields with variable beam directions in a TRN-Unit;

[0324] The EDMG TRN-Unit N field is used to indicate the number of TRN subfields sent continuously using the same beam direction in the TRN-Unit-M TRN subfields;

[0325] The TRN subfield sequence length field is used to indicate the length of the Golay sequence used by each TRN subfield;

[0326] The bandwidth field is used to indicate the bandwidth used to send the TRN field.

[0327] In some embodiments, the type of the sensing PPDU includes at least one of the following: DMG control mode PPDU; DMG SC mode PPDU; EDMG control mode PPDU; EDMG SC mode PPDU.

[0328] In some embodiments, the perception field type includes at least one of the following: a TRN field; a CEF field.

[0329] Those skilled in the art should understand that the relevant description of the above-mentioned information indication device in the embodiment of the present application can be understood with reference to the relevant description of the information indication method in the embodiment of the present application.

[0330] FIG22 is a second schematic diagram of an information indication device provided in an embodiment of the present application, which is applied to a second STA. As shown in FIG22 , the device includes:

[0331] The receiving unit 2201 is used to receive at least one of the first information, the second information, and the third information sent by the first STA, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

[0332] In some implementations, the receiving unit 2201 is configured to receive a DMG perception measurement setting element sent by a first STA, where the DMG perception measurement setting element carries at least one of the first information, the second information, and the third information.

[0333] In some embodiments, the DMG perception measurement setting element includes an optional sub-element field, where the optional sub-element field is used to carry a first sub-element, and the first sub-element carries at least one of the first information, the second information, and the third information.

[0334] In some embodiments, the first sub-element includes at least one of a first field, a second field, and a third field, the first field is used to carry the first information, the second field is used to carry the second information, and the third field is used to carry the third information.

[0335] In some implementations, the first sub-element further includes at least one of the following fields:

[0336] A sub-element identification field, used to indicate the identification of the first sub-element;

[0337] The length field is used to indicate the length of the fields in the first sub-element except the sub-element identification field and the length field.

[0338] In some implementations, the DMG awareness measurement setting element is carried in a DMG awareness measurement setting request frame.

[0339] In some implementations, the receiving unit 2201 is configured to receive a DMG perception request frame sent by a first STA, where the DMG perception request frame carries at least one of the first information, the second information, and the third information.

[0340] In some embodiments, at least one of the first information, the second information, and the third information is carried in a TDD beamforming information field in the DMG perception request frame.

[0341] In some embodiments, the TDD beamforming information field includes at least one of a fourth field, a fifth field, and a sixth field, the fourth field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

[0342] In some embodiments, the TDD beamforming information field includes at least one of a STA identification field, a fifth field, and a sixth field, the STA identification field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

[0343] In some implementations, when the perception type is the first type perception, the STA identification field is used to indicate the identification of the perception responder and the space-time stream number of the Golay sequence used to indicate the perception PPDU.

[0344] In some implementations, for the case where the perception type is the second type perception, the STA identification field is used to indicate the index of the receiving STA synchronization subfield in the perception PPDU.

[0345] In some embodiments, the TDD beamforming information field further includes a seventh field; for the case where the perception type is first type perception, the seventh field is used to indicate whether the mode of the perception measurement instance corresponding to the first type perception is a sequential mode or a parallel mode.

[0346] In some embodiments, the type of the sensing PPDU includes at least one of the following: DMG control mode PPDU; DMG SC mode PPDU; EDMG control mode PPDU; EDMG SC mode PPDU.

[0347] In some embodiments, the perception field type includes at least one of the following: a TRN field; a CEF field.

[0348] In some embodiments, the apparatus further includes: a perception communication unit configured to send a perception PPDU and / or receive a perception PPDU based on at least one of the first information, the second information, and the third information.

[0349] Those skilled in the art should understand that the relevant description of the above-mentioned information indication device in the embodiment of the present application can be understood with reference to the relevant description of the information indication method in the embodiment of the present application.

[0350] Figure 23 is a schematic diagram of a communication device 2300 provided in an embodiment of the present application. The communication device can be a first STA or a second STA. The communication device 2300 shown in Figure 23 includes a processor 2310, which can call and execute a computer program from a memory to implement the method in the embodiment of the present application.

[0351] Optionally, as shown in FIG23 , the communication device 2300 may further include a memory 2320. The processor 2310 may call and execute a computer program from the memory 2320 to implement the method in the embodiment of the present application.

[0352] The memory 2320 may be a separate device independent of the processor 2310 or may be integrated into the processor 2310 .

[0353] Optionally, as shown in FIG23 , the communication device 2300 may further include a transceiver 2330 , and the processor 2310 may control the transceiver 2330 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0354] The transceiver 2330 may include a transmitter and a receiver. The transceiver 2330 may further include an antenna, and the number of antennas may be one or more.

[0355] Optionally, the communication device 2300 may specifically be the first STA of an embodiment of the present application, and the communication device 2300 may implement the corresponding processes implemented by the first STA in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0356] Optionally, the communication device 2300 may specifically be the second STA of the embodiment of the present application, and the communication device 2300 may implement the corresponding processes implemented by the second STA in the various methods of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0357] Figure 24 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 2400 shown in Figure 24 includes a processor 2410, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0358] Optionally, as shown in FIG24 , the chip 2400 may further include a memory 2420 , wherein the processor 2410 may call and execute a computer program from the memory 2420 to implement the method in the embodiment of the present application.

[0359] The memory 2420 may be a separate device independent of the processor 2410 , or may be integrated into the processor 2410 .

[0360] Optionally, the chip 2400 may further include an input interface 2430. The processor 2410 may control the input interface 2430 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0361] Optionally, the chip 2400 may further include an output interface 2440. The processor 2410 may control the output interface 2440 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0362] Optionally, the chip can be applied to the first STA in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the first STA in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0363] Optionally, the chip can be applied to the second STA in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the second STA in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0364] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0365] FIG25 is a schematic block diagram of a communication system 2500 provided in an embodiment of the present application. As shown in FIG25 , the communication system 2500 includes a first STA 2510 and a second STA 2520 .

[0366] Among them, the first STA2510 can be used to implement the corresponding functions implemented by the first STA in the above method, and the second STA2520 can be used to implement the corresponding functions implemented by the second STA in the above method. For the sake of brevity, they are not repeated here.

[0367] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0368] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0369] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0370] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0371] Optionally, the computer-readable storage medium can be applied to the first STA in the embodiment of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first STA in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0372] Optionally, the computer-readable storage medium can be applied to the second STA in the embodiment of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the second STA in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0373] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0374] Optionally, the computer program product can be applied to the first STA in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first STA in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0375] Optionally, the computer program product can be applied to the second STA in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the second STA in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0376] The embodiment of the present application also provides a computer program.

[0377] Optionally, the computer program can be applied to the first STA in the embodiment of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the first STA in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0378] Optionally, the computer program can be applied to the second STA in the embodiment of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the second STA in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0379] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0380] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0381] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0382] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0383] In addition, each functional unit in each embodiment of the present application may be integrated into a first processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0384] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, 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 storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0385] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for indicating information, the method comprising: The first station STA sends at least one of the first information, the second information and the third information to one or more second STAs, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception physical layer protocol data unit PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

2. The method according to claim 1, wherein The first STA sends at least one of the first information, the second information, and the third information to one or more second STAs, including: The first STA sends a directional multi-gigabit DMG-aware measurement setting element to one or more second STAs, where the DMG-aware measurement setting element carries at least one of the first information, the second information, and the third information.

3. The method according to claim 2, wherein: The DMG perception measurement setting element includes an optional sub-element field, where the optional sub-element field is used to carry a first sub-element, and the first sub-element carries at least one of the first information, the second information, and the third information.

4. The method according to claim 3, wherein: The first sub-element includes at least one of a first field, a second field, and a third field, the first field is used to carry the first information, the second field is used to carry the second information, and the third field is used to carry the third information.

5. The method according to claim 4, wherein The first sub-element also includes at least one of the following fields: A sub-element identification field, used to indicate the identification of the first sub-element; The length field is used to indicate the length of the fields in the first sub-element except the sub-element identification field and the length field.

6. The method according to any one of claims 2 to 5, wherein The DMG perception measurement setting element is carried in the DMG perception measurement setting request frame.

7. The method according to any one of claims 1 to 6, wherein The first STA sends at least one of the first information, the second information, and the third information to one or more second STAs, including: The first STA sends a DMG perception request frame to one or more second STAs, where the DMG perception request frame carries at least one of the first information, the second information, and the third information.

8. The method according to claim 7, wherein: At least one of the first information, the second information and the third information is carried in a time division multiplexing TDD beamforming information field in the DMG perception request frame.

9. The method according to claim 8, wherein The TDD beamforming information field includes at least one of a fourth field, a fifth field, and a sixth field, the fourth field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

10. The method according to claim 8, wherein The TDD beamforming information field includes at least one of a STA identification field, a fifth field, and a sixth field, the STA identification field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

11. The method according to claim 10, wherein: When the perception type is the first type of perception, the STA identification field is used to indicate the identification of the perception responder and the space-time stream number of the Golay sequence used to indicate the perception PPDU.

12. The method according to claim 10, wherein: When the perception type is the second type perception, the STA identification field is used to indicate the index of the receiving STA synchronization subfield in the perception PPDU.

13. The method according to claim 10 or 11, wherein: The TDD beamforming information field also includes a seventh field; for the case where the perception type is the first type of perception, the seventh field is used to indicate whether the mode of the perception measurement instance corresponding to the first type of perception is a sequential mode or a parallel mode.

14. The method according to any one of claims 7 to 13, wherein The value of the field related to the training TRN in the TDD beamforming information field in the DMG perception request frame sent by the first STA to each STA in the one or more second STAs is the same.

15. The method according to claim 14, wherein The TRN-related fields include at least one of the following fields: The Enhanced Directional Multi-Gigabit (EDMG) TRN Length field is used to indicate the number of training units (TRN-Units) contained in a sensing PPDU. The number of receive training units RX TRN-Unit field of each transmit training unit TX TRN-Unit is used to indicate the number of TRN-Units sent continuously in the same direction; The EDMG TRN-Unit P field is used to indicate the number of TRN subfields in a TRN-Unit that indicate the beam direction toward the peer device; The EDMG TRN-Unit M field is used to indicate the number of TRN subfields with variable beam directions in a TRN-Unit; The EDMG TRN-Unit N field is used to indicate the number of TRN subfields sent continuously using the same beam direction in the TRN-Unit-M TRN subfields; The TRN subfield sequence length field is used to indicate the length of the Golay sequence used by each TRN subfield; The bandwidth field is used to indicate the bandwidth used to send the TRN field.

16. The method according to any one of claims 1 to 15, wherein The type of the sensing PPDU includes at least one of the following: DMG control mode control mode PPDU; DMG single carrier mode SC mode PPDU; Enhanced Directional Multi-Gigabit EDMG control mode PPDU; Enhanced Directional Multi-Gigabit EDMG SC mode PPDU.

17. The method according to any one of claims 1 to 16, wherein The perception field type includes at least one of the following: Train TRN fields; Channel Estimation Filter CEF field.

18. An information indication method, the method comprising: The second STA receives at least one of the first information, the second information, and the third information sent by the first STA, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

19. The method according to claim 18, wherein The second STA receives at least one of the first information, the second information, and the third information sent by the first STA, including: The second STA receives the DMG perception measurement setting element sent by the first STA, where the DMG perception measurement setting element carries at least one of the first information, the second information, and the third information.

20. The method according to claim 19, wherein The DMG perception measurement setting element includes an optional sub-element field, where the optional sub-element field is used to carry a first sub-element, and the first sub-element carries at least one of the first information, the second information, and the third information.

21. The method according to claim 20, wherein The first sub-element includes at least one of a first field, a second field, and a third field, the first field is used to carry the first information, the second field is used to carry the second information, and the third field is used to carry the third information.

22. The method according to claim 21, wherein The first sub-element also includes at least one of the following fields: A sub-element identification field, used to indicate the identification of the first sub-element; The length field is used to indicate the length of the fields in the first sub-element except the sub-element identification field and the length field.

23. The method according to any one of claims 19 to 22, wherein The DMG perception measurement setting element is carried in the DMG perception measurement setting request frame.

24. The method according to any one of claims 18 to 23, wherein The second STA receives at least one of the first information, the second information, and the third information sent by the first STA, including: The second STA receives the DMG perception request frame sent by the first STA, where the DMG perception request frame carries at least one of the first information, the second information, and the third information.

25. The method according to claim 24, wherein At least one of the first information, the second information and the third information is carried in the TDD beamforming information field in the DMG perception request frame.

26. The method according to claim 25, wherein The TDD beamforming information field includes at least one of a fourth field, a fifth field, and a sixth field, the fourth field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

27. The method according to claim 25, wherein The TDD beamforming information field includes at least one of a STA identification field, a fifth field, and a sixth field, the STA identification field is used to carry the first information, the fifth field is used to carry the second information, and the sixth field is used to carry the third information.

28. The method according to claim 27, wherein When the perception type is the first type perception, the STA identification field is used to indicate the identification of the perception responder and the space-time stream number of the Golay sequence used to perceive the PPDU.

29. The method according to claim 27, wherein When the perception type is the second type perception, the STA identification field is used to indicate the index of the receiving STA synchronization subfield in the perception PPDU.

30. The method according to claim 27 or 28, wherein The TDD beamforming information field also includes a seventh field; for the case where the perception type is the first type of perception, the seventh field is used to indicate whether the mode of the perception measurement instance corresponding to the first type of perception is a sequential mode or a parallel mode.

31. The method according to any one of claims 18 to 30, wherein The type of the sensing PPDU includes at least one of the following: DMG control mode PPDU; DMG SC mode PPDU; EDMG control mode PPDU; EDMG SC mode PPDU.

32. The method according to any one of claims 18 to 31, wherein The perception field type includes at least one of the following: TRN field; CEF field.

33. A method according to any one of claims 18 to 32, wherein: The method further comprises: The second STA sends a perception PPDU and / or receives a perception PPDU based on at least one of the first information, the second information, and the third information.

34. An information indication device, applied to a first STA, comprising: A sending unit, configured to send at least one of first information, second information, and third information to one or more second STAs, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

35. An information indication device, applied to a second STA, comprising: A receiving unit, configured to receive at least one of first information, second information, and third information sent by a first STA, wherein the first information is used to indicate the space-time stream number of the Golay sequence used for the perception PPDU, the second information is used to indicate the type of the perception PPDU, and the third information is used to indicate the perception field type used by the perception PPDU.

36. A communication device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to perform the method according to any one of claims 1 to 17, or the method according to any one of claims 18 to 33.

37. A chip comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 17, or the method according to any one of claims 18 to 33.

38. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 17, or the method according to any one of claims 18 to 33.

39. A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 17, or any one of claims 18 to 33.

40. A computer program, the computer program causing a computer to perform the method of any one of claims 1 to 17, or any one of claims 18 to 33.

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