Information instruction method and communication device

Abstract

The embodiments of the present application provide an information indication method and a communication device. The method is applied to a wireless local area network system supporting various IEEE 802.11 protocols, such as 802.11bf series protocols. The method includes: generating a PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, the PPDU being a directional multi-gigabit DMG single carrier mode PPDU, an enhanced directional multi-gigabit EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU; and transmitting the PPDU. In this way, the sensing PPDU and the non-sensing PPDU in the communication system can be distinguished, so that the receiving end optimizes the sensing performance.

Description

[Technical field]

[0001] TECHNICAL FIELD Embodiments of the present application relate to the field of communications, and more particularly to an information indicating method and a communication device. [Background technology]

[0002] A signal transmitted by a wireless fidelity (Wi-Fi) system device is generally received by another device after being reflected, diffracted, and scattered by various obstacles. Therefore, the signal received by another device is usually obtained by superimposing multiple signals. This makes it easy for the wireless signal to sense the physical environment through which it passes. Sensing technology is also derived from this.

[0003] In the sensing technique, a sensing transmitting end transmits a physical layer protocol data unit (PPDU) used for sensing measurement in a sensing process, that is, a sensing PPDU, and a sensing receiving end receives the sensing PPDU and performs sensing measurement in the sensing process.

[0004] For a device in a communication system, how to determine that a received PPDU is a sensing PPDU is an urgent problem to be solved. Summary of the Invention

[0005] The embodiments of the present application provide an information indicating method and a communication device for distinguishing sensing PPDU and non-sensing PPDU in a communication system.

[0006] According to a first aspect, an information indicating method is provided. The method may be performed by a sending end device, or may be performed by a chip or circuit configured in the sending end device, which is not limited in the present application.

[0007] The method includes generating a PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, the PPDU being a directional multi-gigabit (DMG) single carrier (SC) mode PPDU, an enhanced directional multi-gigabit (EDMG) single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing (OFDM) mode PPDU, and transmitting the PPDU.

[0008] According to the solution in this embodiment of the present application, a PPDU generated by a transmitting end includes sensing indication information, and the sensing indication information can indicate that the PPDU is a PPDU used for sensing measurement. A receiving end can determine that the PPDU is a PPDU used for sensing measurement based on the sensing indication information. The receiving end does not determine a PPDU that does not include sensing indication information as a sensing PPDU. In this way, sensing PPDUs and non-sensing PPDUs in a communication system can be distinguished.

[0009] Furthermore, after it is determined that a PPDU is used for sensing measurement, the receiving end does not need to listen to the channel, which helps to use communication resources more economically.

[0010] With reference to the first aspect, in some implementations of the first aspect, the PPDU is a DMG single carrier mode PPDU, the DMG single carrier mode PPDU includes a DMG header field, and an additional PPDU (A-PPDU) indication field and a training length indication field in the DMG header field carry sensing indication information.

[0011] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0012] Furthermore, the present solution is compatible with current protocols and can have better scalability.

[0013] With reference to the first aspect, in some implementations of the first aspect, the additional PPDU indication field is a B30 field in the DMG header field, and the training length indication field is a B32 field to a B36 field in the DMG header field.

[0014] In accordance with the first aspect, in some implementations of the first aspect, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and an additional PPDU indication field in the L-header field carries sensing indication information.

[0015] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0016] Furthermore, since the A-PPDU indication field in the DMG header is used for both the DMG PPDU and the EDMG PPDU, the sensing indication fields in the DMG PPDU and the EDMG PPDU can be integrated, thereby reducing the implementation complexity.

[0017] Referring to the first aspect, in some implementations of the first aspect, the additional PPDU indication field is a B30 field in an L-header field.

[0018] With reference to the first aspect, in some implementations of the first aspect, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and a DMG training indication field in the EDMG-Header-A field indicates that the PPDU includes a DMG training field or that the PPDU includes an EDMG training field.

[0019] With reference to the first aspect, in some implementations of the first aspect, the DMG training instruction field is a B101 field in an EDMG-Header-A field.

[0020] With reference to the first aspect, in some implementations of the first aspect, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes a DMG training field, and a training length indication field in the L-header field indicates the length of the DMG training field.

[0021] With reference to the first aspect, in some implementations of the first aspect, the training length indication field is a B32 field through a B36 field in an L-header field.

[0022] With reference to the first aspect, in some implementations of the first aspect, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG training field, and an EDMG training length indication field in the EDMG-Header-A field indicates the length of the EDMG training field.

[0023] With reference to the first aspect, in some implementations of the first aspect, the EDMG training length indication field is a B64 field to a B71 field in an EDMG-Header-A field.

[0024] With reference to the first aspect, in some implementations of the first aspect, the PPDU is a DMG single carrier mode PPDU, the DMG single carrier mode PPDU includes a DMG header field, and a B47 field in the DMG header field carries sensing indication information; or The PPDU is an EDMG Single Carrier Mode PPDU or an EDMG Orthogonal Frequency Division Multiplexing Mode PPDU, the EDMG Single Carrier Mode PPDU or the EDMG Orthogonal Frequency Division Multiplexing Mode PPDU including an L-header field, and a B47 field in the L-header field carrying sensing indication information; or The PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and the EDMG-Header-A field carries sensing indication information.

[0025] Therefore, in this embodiment of the present application, the implementation is simpler since a dedicated bit can be used as the sensing indication field of the DMG PPDU or EDMG PPDU.

[0026] With reference to the first aspect, in some implementations of the first aspect, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and an additional EDMG PPDU indication field and an EDMG training length indication field in the EDMG-Header-A field carry sensing indication information.

[0027] With reference to the first aspect, in some implementations of the first aspect, the additional EDMG PPDU indication field is a B95 field in the EDMG-Header-A field, and the EDMG training length indication field is a B64 field to a B71 field in the EDMG-Header-A field.

[0028] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0029] According to a second aspect, an information indicating method is provided. The method may be performed by a receiving end device, or may be performed by a chip or circuit configured in the receiving end device, which is not limited in this application.

[0030] The method includes receiving a PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, the PPDU being a directional multi-gigabit DMG single carrier mode PPDU, an enhanced directional multi-gigabit EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU, and determining, based on the sensing indication information, that the PPDU is a PPDU used for the sensing indication information.

[0031] According to the solution in this embodiment of the present application, a PPDU generated by a transmitting end includes sensing indication information, and the sensing indication information can indicate that the PPDU is a PPDU used for sensing measurement. A receiving end can determine that the PPDU is a PPDU used for sensing measurement based on the sensing indication information. The receiving end does not determine a PPDU that does not include sensing indication information as a sensing PPDU. In this way, sensing PPDUs and non-sensing PPDUs in a communication system can be distinguished.

[0032] Furthermore, after it is determined that a PPDU is used for sensing measurement, the receiving end does not need to listen to the channel, which helps to use communication resources more economically.

[0033] With reference to the second aspect, in some implementations of the second aspect, the PPDU is a DMG single carrier mode PPDU, the DMG single carrier mode PPDU includes a DMG header field, and an additional PPDU indication field and a training length indication field in the DMG header field carry sensing indication information.

[0034] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0035] Furthermore, the present solution is compatible with current protocols and can have better scalability.

[0036] With reference to the second aspect, in some implementations of the second aspect, the additional PPDU indication field is a B30 field in the DMG header field, and the training length indication field is a B32 field to a B36 field in the DMG header field.

[0037] In accordance with the second aspect, in some implementations of the second aspect, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and an additional PPDU indication field in the L-header field carries sensing indication information.

[0038] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0039] Furthermore, since the A-PPDU indication field in the DMG header is used for both the DMG PPDU and the EDMG PPDU, the sensing indication fields in the DMG PPDU and the EDMG PPDU can be integrated, thereby reducing the implementation complexity.

[0040] With reference to the second aspect, in some implementations of the second aspect, the additional PPDU indication field is a B30 field in an L-header field.

[0041] With reference to the second aspect, in some implementations of the second aspect, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and a DMG training indication field in the EDMG-Header-A field indicates that the PPDU includes a DMG training field or that the PPDU includes an EDMG training field.

[0042] With reference to the second aspect, in some implementations of the second aspect, the DMG training instruction field is a B101 field in an EDMG-Header-A field.

[0043] With reference to the second aspect, in some implementations of the second aspect, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes a DMG training field, and a training length indication field in the L-header field indicates the length of the DMG training field.

[0044] With reference to the second aspect, in some implementations of the second aspect, the training length indication field is a B32 field through a B36 field in an L-header field.

[0045] With reference to the second aspect, in some implementations of the second aspect, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG training field, and an EDMG training length indication field in the EDMG-Header-A field indicates the length of the EDMG training field.

[0046] With reference to the second aspect, in some implementations of the second aspect, the EDMG training length indication field is a B64 field to a B71 field in an EDMG-Header-A field.

[0047] With reference to the second aspect, in some implementations of the second aspect, the PPDU is a DMG single carrier mode PPDU, the DMG single carrier mode PPDU includes a DMG header field, and a B47 field in the DMG header field carries sensing indication information; or The PPDU is an EDMG Single Carrier Mode PPDU or an EDMG Orthogonal Frequency Division Multiplexing Mode PPDU, the EDMG Single Carrier Mode PPDU or the EDMG Orthogonal Frequency Division Multiplexing Mode PPDU including an L-header field, and a B47 field in the L-header field carrying sensing indication information; or The PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and the EDMG-Header-A field carries sensing indication information.

[0048] Therefore, in this embodiment of the present application, the implementation is simpler since a dedicated bit can be used as the sensing indication field of the DMG PPDU or EDMG PPDU.

[0049] With reference to the second aspect, in some implementations of the second aspect, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and an additional EDMG PPDU indication field and an EDMG training length indication field in the EDMG-Header-A field carry sensing indication information.

[0050] With reference to the second aspect, in some implementations of the second aspect, the additional EDMG PPDU indication field is a B95 field in the EDMG-Header-A field, and the EDMG training length indication field is a B64 field to a B71 field in the EDMG-Header-A field.

[0051] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0052] According to a third aspect, a communication device is provided. The device is configured to perform the method provided in the first aspect. In particular, the communication device may include units and / or modules, such as a processing unit and / or a communication unit, configured to perform the method provided in the first aspect or any one of the above implementations of the first aspect.

[0053] In implementation, the communication device is a transmitting end device. When the communication device is a transmitting end device, the communication unit may be a transceiver and / or an input / output interface, and the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0054] In other implementations, the communication device is a chip, chip system, or circuit within the sending end device. When the communication device is a chip, chip system, or circuit within the sending end device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, associated circuit, etc. on the chip, chip system, or circuit, and the processing unit may be at least one processor, processing circuit, logic circuit, etc.

[0055] According to a fourth aspect, a communication device is provided. The device is configured to perform the method provided in the second aspect. In particular, the communication device may include units and / or modules, such as a processing unit and / or a communication unit, configured to perform the method provided in the second aspect or any one of the above implementations of the second aspect.

[0056] In an implementation, the communication device is a receiving end device. When the communication device is a receiving end device, the communication unit may be a transceiver and / or an input / output interface, and the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0057] In other implementations, the communication device is a chip, chip system, or circuit in a receiving end device. When the communication device is a chip, chip system, or circuit in a terminal device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, associated circuit, etc. on the chip, chip system, or circuit, and the processing unit may be at least one processor, processing circuit, logic circuit, etc.

[0058] According to a fifth aspect, there is provided a communications apparatus including a processor and optionally further including a memory, the processor configured to control a transceiver to receive and receive signals, the memory configured to store a computer program, the processor configured to call the computer program from the memory and execute the computer program to cause a transmitting device to perform the method of the first aspect or any one of the possible implementations of the first aspect.

[0059] Optionally, there are one or more processors and one or more memories.

[0060] Optionally, the memory may be integral to the processor, or the memory and the processor may be are placed separately.

[0061] Optionally, the transmitting device further includes a transceiver, which may specifically be a transmitter and a receiver.

[0062] According to a sixth aspect, there is provided a communications apparatus including a processor and optionally further including a memory, the processor configured to control a transceiver to receive and receive signals, the memory configured to store a computer program, the processor configured to call the computer program from the memory and execute the computer program to cause a receiving device to perform the method of the second aspect or any one of the possible implementations of the second aspect.

[0063] Optionally, there are one or more processors and one or more memories.

[0064] Optionally, the memory may be integral to the processor, or the memory and the processor may be are placed separately.

[0065] Optionally, the receiving device further includes a transceiver, which may specifically be a transmitter and a receiver.

[0066] According to a seventh aspect, there is provided a communication system including a transmitting device configured to perform the method of the first aspect or any one of the possible implementations of the first aspect, and a receiving device configured to perform the method of the second aspect or any one of the possible implementations of the second aspect.

[0067] According to an eighth aspect, there is provided a computer readable storage medium having stored thereon a computer program or code which, when executed on a computer, can cause the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect and / or the method of the second aspect or any one of the possible implementations of the second aspect.

[0068] According to a ninth aspect, there is provided a chip including at least one processor, the at least one processor being coupled to a memory configured to store a computer program, the processor being configured to call the computer program from the memory and execute the computer program so that a transmitting device including the chip system performs the method of the first aspect or any one of the possible implementations of the first aspect, and a receiving device including the chip system performs the method of the second aspect or any one of the possible implementations of the second aspect.

[0069] The chip may include an input circuit or interface configured to transmit information or data, and an output circuit or interface configured to receive information or data.

[0070] According to a tenth aspect, there is provided a computer program product comprising computer program code, which, when executed by a transmitting device, performs the method of the first aspect or any one of the possible implementations of the first aspect, and which, when executed by a receiving device, performs the method of the second aspect or any one of the possible implementations of the second aspect. [Brief description of the drawings]

[0071] [Figure 1] 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied; [Diagram 2] 2 is a schematic flow chart of an information indication method 200 according to an embodiment of the present application. [Diagram 3] 1 is a schematic diagram of the format of a DMG SC mode PPDU. [Figure 4] 1 is a schematic diagram of the format of an EDMG SC mode PPDU. [Diagram 5] 1 is a schematic diagram of a communication device according to an embodiment of the present application. [Figure 6] FIG. 2 is another schematic diagram of a communication device according to an embodiment of the present application. [Figure 7] FIG. 2 is another schematic diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0072] The following describes the technical solutions of the present application with reference to the accompanying drawings.

[0073] The technical solution provided in the embodiments of the present application can be applied to wireless local area network (WLAN) scenarios. For example, the technical solution provided in the embodiments of the present application can be applied to IEEE 802.11 system standards, such as 802.11a / b / g standard, 802.11bf standard, 802.11ad standard, 802.11ay standard, or further next-generation standards. 802.11bf includes two main standard categories, namely low frequency (below 7 GHz) and high frequency (60 GHz). The implementation below 7 GHz mainly relies on standards such as 802.11ac, 802.11ax, 802.11be, and next-generation. The implementation at 60 GHz mainly relies on standards such as 802.11ad, 802.11ay, and next-generation. 802.11ad may also be called the directional multi-gigabit (DMG) standard, and 802.11ay may also be called the enhanced directional multi-gigabit (EDMG) standard. The technical solutions in the embodiments of this application mainly focus on the implementation of 802.11bf at high frequencies (802.11ad, 802.11ay), but the related technical principles may be extended to low frequencies (802.11ac, 802.11ax, and 802.11be).

[0074] Although the embodiments of the present application are mainly described by using an example in which a WLAN network, particularly a network to which the IEEE 802.11 system standard is applied, those skilled in the art will understand that various aspects of the embodiments of the present application may be extended to other networks using various standards or protocols, such as Bluetooth, high performance radio local area network (HIPERLAN), wide area network (WAN), personal area network (PAN), and other networks known or developed in the future. Thus, various aspects provided in the embodiments of the present application are applicable to any suitable wireless network, regardless of the coverage area and wireless access protocol used.

[0075] The technical solutions in the embodiments of the present application may be applicable to various communication systems, such as WLAN communication systems, wireless fidelity (Wi-Fi), global system for mobile communications (GSM), code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) systems, general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) communication systems, 5th generation (5G) systems or new radio (NR) systems, future 6th generation (6th The present invention may further be applied to a 6G (Advanced Generation) system, and a wireless local area network system, such as an Internet of Things (IoT) network or an Internet of Vehicles (V2X) network.

[0076] The communication system to which the present application is applied is merely an example for explanation, and the communication system to which the present application is applied is not limited thereto, which is collectively described here, and the details will not be described again below.

[0077] The terminal of the present application may be a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile console, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user equipment. The terminal may alternatively be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, a terminal device in a future 6G network, a terminal device in a public land mobile network (PLMN), etc. This is not limited to the present application.

[0078] The network device of the embodiment of the present application may be a device configured to communicate with a terminal. The network device may be a base transceiver station (BTS) in a global system for mobile communications (GSM) or code division multiple access (CDMA) system, or a Node B (Node B, NB) in a wideband code division multiple access (WCDMA) system, or an evolved Node B (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario. Alternatively, the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a 5G network, a network device in a future 6G network, a network device in a PLMN network, etc. This is not limited in the embodiment of the present application.

[0079] FIG. 1 is a schematic diagram of an application scenario according to the present application. In FIG. 1, an AP (AP110 shown in FIG. 1) may be a communication server, a router, or a switch, or any one of the above network devices. An STA (STA121 or STA122 shown in FIG. 1) may be a mobile phone or a computer, or any one of the above terminals. This is not limited in this embodiment of the present application. One or more STAs in a station device may communicate with one or more APs in an access point device after establishing an association relationship. For example, AP110 can communicate with STA121 after an association relationship is established between AP110 and STA121, and AP110 can communicate with STA122 after an association relationship is established between AP110 and STA122.

[0080] It should be understood that the communication system 100 in Fig. 1 is only an example. The technical solution of the embodiment of the present application is applicable to communication between an AP and one or more STAs, and also applicable to intercommunication between APs, and further applicable to intercommunication between STAs.

[0081] An access point is used by a terminal (e.g., a mobile phone) to access a wired (or wireless) network, and is mainly deployed in a house, a building, and a campus. The typical coverage range is several tens of meters or more than 100 meters. Indeed, an access point may alternatively be deployed outdoors. An access point is equivalent to a bridge connecting a wired network and a wireless network. The main function of an access point is to connect various wireless network clients together, and then connect the wireless network to Ethernet. Specifically, an access point may be a terminal device (e.g., a mobile phone) or a network device (e.g., a router) equipped with a Wi-Fi chip. Optionally, an access point may be a device supporting the WLAN standard of the 802.11 series standard. For example, an access point may support the 802.11bf standard, the 802.11ad standard, the 802.11ay standard, or a future Wi-Fi standard.

[0082] The station may be a wireless communication chip, a wireless sensor, a wireless communication terminal, etc., and may also be called a user. For example, the station may be a mobile phone, a tablet computer, a set-top box, a smart television, a smart wearable device, an in-vehicle communication device, a computer, etc., that supports Wi-Fi communication functions. Optionally, the station may be a device that supports a WLAN standard of the 802.11 series of standards. For example, the station may also support the 802.11bf standard, the 802.11ad standard, the 802.11ay standard, or a future Wi-Fi standard.

[0083] For example, access points and stations may be devices used in the Internet of Vehicles, Internet of Things nodes, sensors in the Internet of Things (IoT), such as smart cameras, smart remote controls, smart water or electricity meters in a smart home, sensors in a smart city, etc.

[0084] The wireless communication system provided in the embodiment of the present application may be a WLAN or a cellular network. The method may be implemented by a communication device in the wireless communication system, or a chip or processor in the communication device. The communication device may be a wireless communication device that supports parallel transmission on multiple links. For example, the communication device is called a multi-link device or a multi-band device. Compared with a device that only supports single-link transmission, the multi-link device has high transmission efficiency and high throughput. The multi-link device includes one or more affiliated stations STA. An affiliated STA is a logical station and can operate on one link. An affiliated station may be an AP or a non-AP STA. A multi-link device whose affiliated station is an AP may be called a multi-link AP, a multi-link AP device, or an AP multi-link device. A multi-link device whose affiliated station is a non-AP STA may be called a multi-link STA, a multi-link STA device, or a STA multi-link device.

[0085] A signal transmitted by a Wi-Fi device is usually received by a terminal device after being reflected, diffracted, and scattered by various obstacles. Due to this phenomenon, the actually received signal is usually obtained by superposing multiple signals, that is, the channel environment is complicated. However, this makes it easy for the wireless signal to sense the physical environment through which the wireless signal passes. The surrounding environment can be inferred and sensed by analyzing the wireless signal affected by various obstacles, such as channel state information. Sensing technology is derived from this.

[0086] The sensing technology includes four roles and four steps: sensing initiator, sensing responder, sensing transmitter, and sensing receiver.

[0087] Specifically, a sensing initiator is a station that initiates a sensing process. A sensing responder is a station that participates in a sensing process initiated by a sensing initiator. A sensing transmitter is a station that transmits a physical layer protocol data unit (PPDU) for sensing measurement in a sensing process, and the PPDU for sensing measurement is called a sensing PPDU for short. A sensing receiver is a station that receives the sensing PPDU transmitted by the sensing transmitter and performs sensing measurement in the sensing process.

[0088] One of the sensing techniques is radar sensing, which is typically characterized by self-transmission and self-reception. The annex to standard 802.11ay provides a method for implementing radar sensing according to standard 802.11ad and standard 802.11ay. A station (e.g., station #1) may implement radar sensing in the following manner:

[0089] (1) The PPDU used for sensing measurement, i.e., the sensing PPDU, is generated according to the DMG or EDMG standard. The transmitter address (TA) and receiver address (RA) in the sensing PPDU are both set to the media access control (MAC) address of station #1. If the sensing PPDU is a short sector sweep (SSW) PPDU, the source associated identifier (AID) and destination associated identifier in the PPDU must be set to the same value.

[0090] (2) The sensing PPDU is transmitted based on the current channel access mechanism.

[0091] (3) After receiving the PPDU, other stations (e.g., station #2) do not continue to unpack the PPDU after reading the RA, and then respect the station's transmission opportunity (TXOP) and do not contend for the channel during this period.

[0092] In the above solution, radar sensing is indicated by using RA=TA. However, if the sensing PPDU is transmitted and received by different devices, e.g., in bistatic sensing or transmit-receive split scenario, the receiving end cannot determine that the PPDU is a sensing PPDU. In other words, for a receiving end device in a communication system, sensing PPDUs and non-sensing PPDUs cannot be distinguished. Thus, the receiving end cannot make corresponding adjustments to maximize sensing performance.

[0093] In view of the above technical problems, an embodiment of the present application provides an information indicating method for distinguishing sensing PPDUs and non-sensing PPDUs in a communication system, so as to optimize the sensing performance of the receiving end.

[0094] The technical solutions provided in this application are described in detail below with reference to the accompanying drawings. The embodiments of the present application may be applied to several different scenarios, including but not limited to the scenario shown in FIG.

[0095] FIG. 2 is a schematic flow chart of an information indicating method 200 according to an embodiment of the present application.

[0096] S210: The transmitting end generates a PPDU, where the PPDU includes sensing instruction information.

[0097] The sensing indication information indicates that the PPDU is a PPDU to be used for sensing measurement.

[0098] In other words, the sensing indication information indicates that the PPDU is not a PPDU used for communication.

[0099] In other words, the sensing indication information indicates that the PPDU carries a sensing signal, or the sensing indication information indicates that the period indicated by the duration indicated by the PPDU is used to transmit a sensing signal, or the sensing indication information indicates that the TXOP protected / set by the PPDU is used to transmit a sensing signal.

[0100] Specifically, at least one bit in the PPDU may be used as a sensing indication field, which carries sensing indication information. The sensing indication field may be a dedicated indication field or may reuse a current indication field.

[0101] The PPDU is a DMG single carrier mode PPDU, an EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU.

[0102] It should be understood that the PPDU of 802.11ad may be called DMG PPDU, and the mode of the DMG PPDU includes two types, namely, control mode and single carrier (SC) mode. The PPDU of 802.11ay may be called EDMG PPDU, and the mode of the EDMG PPDU includes three types, namely, control mode, single carrier mode (SC mode), and orthogonal frequency division multiplexing (OFDM) mode. The PPDU in this application is the PPDU in the SC mode of 802.11ad, the PPDU in the SC mode of 802.11ay, or the PPDU in the OFDM mode of 802.11ay, namely, the DMG SC mode PPDU, the EDMG SC mode PPDU, or the EDMG OFDM mode PPDU.

[0103] It should be further understood that unless otherwise specified hereinafter in this application, a DMG PPDU is a DMG SC mode PPDU, and an EDMG PPDU is either an EDMG SC mode PPDU or an EDMG OFDM mode PPDU.

[0104] S220: The transmitting end transmits a PPDU, and the receiving end receives the PPDU correspondingly.

[0105] The transmitting end transmits a PPDU including the sensing instruction information in S210, and the receiving end receives the PPDU including the sensing instruction information in S210.

[0106] S230: The receiving end determines, based on the sensing indication information, that the PPDU is a PPDU used for sensing measurement.

[0107] Specifically, the receiving end may parse the PPDU, obtain the sensing indication information in the PPDU, and determine that the PPDU is a PPDU used for sensing measurement.

[0108] According to the above solution, the PPDU generated by the transmitting end includes sensing indication information, and the sensing indication information may indicate that the PPDU is a PPDU used for sensing measurement. The receiving end may determine that the PPDU is a PPDU used for sensing measurement based on the sensing indication information. The receiving end will not determine a PPDU that does not include sensing indication information as a sensing PPDU. In this way, sensing PPDUs and non-sensing PPDUs in a communication system may be distinguished.

[0109] Furthermore, after a PPDU is determined to be a PPDU used for sensing measurement, the receiving end does not need to listen to the channel, which is helpful to better utilize communication resources.

[0110] Optionally, further, after the receiving end determines that the PPDU is a PPDU used for sensing measurement, the receiving end can perform gain control in a subsequent automatic gain control (AGC) portion to improve sensing performance.

[0111] Optionally, further, after the receiving end determines that the PPDU is a PPDU used for sensing measurement, the receiving end may prepare the sensing result that needs to be fed back as soon as possible.

[0112] In implementation, the PPDU is a DMG SC mode PPDU, and a DMG header field of the DMG SC mode PPDU carries the sensing indication information.

[0113] It should be noted that the DMG SC mode PPDU includes a header field, which may also be referred to as a DMG header field.

[0114] The DMG header field includes an EDMG PPDU indication field. Specifically, the EDMG PPDU indication field may be a B46 field in the DMG header field, which indicates whether the PPDU is an EDMG PPDU. In a DMG SC mode PPDU, if the value of the B46 field in the DMG header field is 0, it indicates that the PPDU is a DMG PPDU.

[0115] Based on the above solution, if the receiving end does not participate in any sensing, the receiving end can determine that the PPDU is a sensing PPDU by reading the sensing indication information in the DMG header field. Furthermore, the receiving end does not need to continue to perform decoding, which helps to reduce the power consumption of the device.

[0116] Specifically, an additional PPDU (A-PPDU) indication field and a training length indication field in the DMG header field carry sensing indication information.

[0117] The DMG header field includes an A-PPDU indication field, which may indicate whether the PPDU is an A-PPDU, which means that the PPDU is followed by another PPDU, and the following PPDU does not include a preamble portion.

[0118] The DMG header field further includes a training length indicator field, which indicates the length of the training (TRN) field included in the DMG SC mode PPDU.

[0119] In the present application, the A-PPDU indication field and the training length indication field in the DMG header field may carry sensing indication information.

[0120] In other words, the location of the sensing indication field is the location of the A-PPDU indication field and the training length indication field in the DMG header field. Alternatively, the A-PPDU indication field and the training length indication field in the DMG header field may jointly indicate whether the PPDU is a sensing PPDU.

[0121] Specifically, in 802.11ad, the A-PPDU indication field is the B30 field in the DMG header, and the training length indication field is the B32 field to the B36 field in the DMG header.

[0122] It should be understood that in this embodiment of the present application, the "Bxx field" may also be referred to as the Bxx bit, for example, the B30 field indicates the B30 bit, i.e., the bit in which B30 is located.

[0123] FIG. 3 is a schematic diagram of the format of a DMG SC mode PPDU. As shown in FIG. 3, the DMG SC mode PPDU includes a short training field (STF) field, a channel estimation (CE) field, a header field, at least one block (BLK), an automatic gain control (AGC), and a TRN field. The STF field and the CE field form a preamble part. The header field is a DMG header field. The B30 field in the header field is an A-PPDU indication field. The B32 field to the B36 field in the header field are training length indication fields. The B32 field to the B36 field indicate the length of the TRN field. The B46 field in the DMG header field is an EDMG PPDU indication field. In the format shown in FIG. 3, the value of the B46 field is 0. The B30 field and the B32 field to the B36 field may indicate the following information:

[0124] (1) A PPDU is an A-PPDU if the value of the B30 field is 1 and the values ​​of the B32 to B36 fields are 0. If a PPDU is an A-PPDU, the PPDU following that PPDU does not carry an STF field or a CE field.

[0125] (2) If the value of the B30 field is 0 and the values ​​of the B32 to B36 fields are 0, the PPDU is a non-A-PPDU that does not carry a TRN field.

[0126] (3) If the value of the B30 field is 0 and the values ​​of the B32 to B36 fields are not 0, the PPDU is a non-A-PPDU carrying a TRN field.

[0127] (4) If the value of the B30 field is 1 and the values ​​of the B32 to B36 fields are not 0, the PPDU is a sensing PPDU.

[0128] Specifically, the TRN field carried in the sensing PPDU may be used for sensing. If the value of B30 is 1 and the values ​​of B32 to B36 are not 0, the receiving end determines that the DMG SC mode PPDU is a sensing PPDU based on the B30 field and the B32 to B36 fields. Furthermore, the receiving end may parse the content of the TRN field and perform sensing based on the content of the TRN field.

[0129] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0130] Furthermore, when B30=1 and the training length indication field is not 0, this does not occur in a DMG SC mode PPDU generated by a device not participating in sensing. Therefore, a DMG SC mode PPDU generated by a device not participating in sensing does not cause a misreading of a DMG device participating in sensing. However, a DMG SC mode PPDU generated by a device participating in sensing has the characteristic that B30=1 and the training length is not 0. Therefore, when reading the B30 field and the B32 field to the B36 field, a DMG device not participating in sensing can also consider that an error has occurred in the PPDU, that is, a misreading of a DMG device not participating in sensing is not caused.

[0131] In other words, the present solution is compatible with current protocols and can have better scalability.

[0132] Furthermore, the training length indication field can indicate the length of the training field, and since the training field is used to perform sensing, the A-PPDU indication field and the description part of the training field used for sensing (i.e., the training length indication field) are used together as a sensing indication field. This solution is more compact and efficient because when determining that the PPDU is a sensing PPDU, the receiving end can further determine the length of the training field used for sensing.

[0133] In implementation, the PPDU is an EDMG SC mode PPDU or an EDMG OFDM mode PPDU, where the EDMG SC mode PPDU or the EDMG OFDM mode PPDU includes an L-header field, where the L-header field carries a sensing indication field.

[0134] It should be understood that the 802.11ay protocol is compatible with the 802.11ad protocol. In the case of an EDMG PPDU, the L-header field may also be referred to as a non-EDMG header field of the EDMG PPDU, or as a DMG header field of the EDMG PPDU.

[0135] The L-header field includes an EDMG PPDU indication field. Specifically, the EDMG PPDU indication field may be a B46 field in the L-header field, which indicates whether the PPDU is an EDMG PPDU. For an EDMG PPDU, if the value of the B46 field in the L-header field is 1, it indicates that the PPDU is an EDMG PPDU.

[0136] Based on the above solution, if the receiving end does not participate in any sensing, the receiving end can determine that the PPDU is a sensing PPDU by reading the sensing indication information in the L-header field. Furthermore, the receiving end does not need to continue to perform decoding, which helps to reduce the power consumption of the device.

[0137] Specifically, in the case of an EDMG SC mode PPDU or an EDMG OFDM mode PPDU, the L-header field also includes an A-PPDU indication field, and the A-PPDU indication field in the L-header field may carry sensing indication information.

[0138] In other words, the position of the sensing indication field is the position of the A-PPDU indication field in the L-header field. Alternatively, the A-PPDU indication field in the L-header field indicates whether the PPDU is a sensing PPDU.

[0139] Specifically, in the 802.11ay protocol, the A-PPDU indication field in the L-header field is the B30 field in the L-header.

[0140] Figure 4 is a schematic diagram of the format of an EDMG SC mode PPDU. As shown in Figure 4, the EDMG SC mode PPDU includes an L-STF field, an L-channel estimation field (CEF) field, an L-header field, an EDMG-header-A field, an EDMG-STF field, an EDMG-CEF field, an EDMG-header-B field, a data field, and a TRN field. The L-STF field and the L-CEF field form a preamble part. The L-header field may also be called the DMG header of the EDMG SC mode PPDU, the B30 field in the L-header field is an A-PPDU indication field, and the B46 field in the L-header field is an EDMG PPDU indication field. In the format shown in Figure 4, the value of the B46 field is 1.

[0141] For a non-sensing EDMG SC mode PPDU, the value of the B30 field is 0. If the value of B30 is 1, the EDMG SC mode PPDU is a sensing PPDU.

[0142] For an EDMG OFDM mode PPDU, the header format of the EDMG OFDM mode PPDU is the same as that of an EDMG SC mode PPDU. Therefore, the position of the sensing indication field of the EDMG OFDM mode PPDU is the same as that of the EDMG SC mode PPDU. Specifically, for a non-sensing EDMG OFDM mode PPDU, the value of the B30 field is 0. If the value of the B30 field is 1, the EDMG OFDM mode PPDU is a sensing PPDU.

[0143] Therefore, in this embodiment of the present application, the current indication field can be reused, and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0144] Furthermore, since the A-PPDU indication field in the DMG header is used for both the DMG PPDU and the EDMG PPDU, the sensing indication fields in the DMG PPDU and the EDMG PPDU can be integrated, thereby reducing the implementation complexity.

[0145] Optionally, the EDMG SC mode PPDU or the EDMG OFDM mode PPDU may further include a training field. Specifically, it should be understood that the training field of the sensing PPDU may be used for sensing, as shown in Fig. 4. The training field includes two format types, namely, the training field format used in the DMG PPDU and the dedicated training field format in the EDMG PPDU. The training fields of the two formats are called the DMG training field and the EDMG training field, respectively.

[0146] The training field included in the EDMG SC mode PPDU or the EDMG OFDM mode PPDU may be a DMG training field or may be an EDMG training field. The EDMG Single Carrier mode PPDU or the EDMG Orthogonal Frequency Division Multiplexing mode PPDU includes an EDMG-Header-A field, and a DMG Training (DMG TRN) indication field in the EDMG-Header-A field indicates that the PPDU includes a DMG training field or that the PPDU includes an EDMG training field.

[0147] Specifically, in the 802.11ay protocol, the DMG training indication field is the B101 field in the EDMG-Header-A field.

[0148] Therefore, in this embodiment of the present application, the type of the training field included in the PPDU may be further indicated, so that the receiving end can parse the training field based on the corresponding type and perform sensing based on the training field.

[0149] In the example, the DMG training indication field indicates that the training field included in the EDMG SC mode PPDU or the EDMG OFDM mode PPDU is a DMG training field.

[0150] In this case, the training length indication field in the L-header field of the EDMG SC mode PPDU or EDMG OFDM mode PPDU indicates the length of the DMG training field.

[0151] In other words, if the training field included in the EDMG PPDU is a DMG training field, the training length indication field in the L-header field may indicate the length of the DMG training field.

[0152] Specifically, in the 802.11ay protocol, the L-header field of the EDMG SC mode PPDU or the EDMG OFDM mode PPDU includes a training length indication field, and the training length indication field is the B32 field to the B36 field in the L-header.

[0153] Therefore, if the training field included in the EDMG PPDU is a DMG training field, in this embodiment of the present application, a training length indication field in the L-header field may indicate the length of the DMG training field included in the PPDU, so that the receiving end parses the training field to further facilitate performing sensing.

[0154] In another example, the DMG training indication field indicates that the training field included in the EDMG SC mode PPDU or the EDMG OFDM mode PPDU is an EDMG training field.

[0155] In this case, the DMG training length (DMG TRN length) indication field in the EDMG-header-A field of the EDMG SC mode PPDU or EDMG OFDM mode PPDU indicates the length of the EDMG training field, and the value of the training length indication field in the L-header field of the EDMG SC mode PPDU or EDMG OFDM mode PPDU is 0.

[0156] Specifically, in the 802.11ay protocol, the EDMG-Header-A field of the EDMG SC mode PPDU or the EDMG OFDM mode PPDU includes a DMG training length indication field, and the DMG training length indication field is the B64 field to the B71 field in the EDMG-Header-A field.

[0157] In other words, if the training field included in the EDMG PPDU is an EDMG training field, the value of the training length indication field in the L-header field is 0. In this case, the training length indication field in the EDMG-header-A field of the EDMG PPDU may indicate the length of the EDMG training field in the PPDU.

[0158] Therefore, if the training field included in the EDMG PPDU is an EDMG training field, in this embodiment of the present application, the training length indication field in the EDMG-Header-A field may indicate the length of the EDMG training field included in the PPDU, so that the receiving end parses the training field to further facilitate performing sensing.

[0159] It should be understood that the above relationship between the training length indication field and the training field is just two examples, which are not limited in the present application. For example, if the training field included in the EDMG PPDU is a DMG training field, those skilled in the art can also design the training length indication field in the L-header field to be 0, and use the training length indication field in the EDMG-header-A field of the EDMG PPDU to indicate the length of the DMG training field in the PPDU.

[0160] In implementation, the B47 field in the DMG header field of the DMG SC mode PPDU carries the sensing indication information.

[0161] 3, the DMG header of the DMG SC mode PPDU further includes a reserved bit, for example, a B47 field, which may be used as a sensing indication field to indicate whether the DMG PPDU is a sensing PPDU.

[0162] Therefore, in this embodiment of the present application, the implementation is simpler since a dedicated bit can be used as the sensing indication field of the DMG PPDU.

[0163] In implementation, the B47 field in the L-header field of an EDMG SC mode PPDU or an EDMG OFDM mode PPDU carries the sensing indication information.

[0164] 4, the L-header of the EDMG SC mode PPDU also includes a reserved bit, for example, a B47 field, which may be used as a sensing indication field to indicate whether the EDMG SC mode PPDU is a sensing PPDU.

[0165] Similarly, a reserved bit of an EDMG OFDM mode PPDU, for example, a B47 field, may be used as a sensing indication field to indicate whether the EDMG OFDM mode PPDU is a sensing PPDU.

[0166] Therefore, in this embodiment of the present application, the implementation is simpler since a dedicated bit can be used as the sensing indication field of the EDMG PPDU.

[0167] Furthermore, for both the DMG PPDU and the EDMG PPDU, the reserved bits in the DMG header can be used, so that the sensing indication fields of the DMG PPDU and the EDMG PPDU can be integrated, reducing the implementation complexity.

[0168] In implementation, an EDMG SC mode PPDU or an EDMG OFDM mode PPDU includes an EDMG-Header-A field, which carries sensing indication information.

[0169] As shown in Figure 4, the EDMG SC mode PPDU further includes an EDMG-Header-A field. The following provides two implementations in which the EDMG-Header-A field carries sensing indication information.

[0170] Method 1: Any reserved bit in the EDMG-Header-A field carries sensing indication information.

[0171] Specifically, any reserved bit in the EDMG-Header-A, for example, any bit in the B102 field to the B111 field, may be used as a sensing indication field to indicate whether the EDMG SC mode PPDU is a sensing PPDU.

[0172] Similarly, a reserved bit of an EDMG OFDM mode PPDU, for example, any bit in the B102 field to the B111 field, may be used as a sensing indication field to indicate whether the EDMG OFDM mode PPDU is a sensing PPDU.

[0173] Therefore, in this embodiment of the present application, the implementation is simpler since a dedicated bit can be used as the sensing indication field of the EDMG PPDU.

[0174] Furthermore, in case of EDMG PPDU, reserved bits in the EDMG-Header-A field can be further used, thus increasing the versatility and flexibility of the implementation of the solution.

[0175] Method 2: The additional EDMG PPDU indication field (additional EDMG PPDU) and the EDMG training length indication field in the EDMG-header-A field carry sensing indication information.

[0176] The EDMG-Header-A field includes an Additional EDMG PPDU Indication field, which may indicate whether the EDMG PPDU is an A-PPDU, meaning that the PPDU is followed by another PPDU, and the subsequent PPDU does not include a preamble portion.

[0177] The EDMG-Header-A field further includes an EDMG Training Length Indicator field, which may indicate the length of the EDMG Training field included in the DMG PPDU.

[0178] In the present application, in the case of an EDMG SC mode PPDU or an EDMG OFDM mode PPDU, the additional EDMG PPDU indication field and the EDMG training length indication field in the EDMG-Header-A field may carry sensing indication information.

[0179] In other words, the location of the sensing indication field is the location of the additional EDMG PPDU indication field and the EDMG training length indication field in the EDMG-Header-A field. Alternatively, the additional EDMG PPDU indication field and the EDMG training length indication field in the EDMG-Header-A field may jointly indicate whether the PPDU is a sensing PPDU.

[0180] Specifically, in the 802.11ay protocol, the B95 field in the EDMG-Header-A field is an additional EDMG PPDU indication field, and the B64 to B71 fields in the EDMG-Header-A field are EDMG training length indication fields.

[0181] Therefore, in this embodiment of the present application, the current indication field can be reused and the indication of the sensing PPDU is implemented without introducing a new indication field, which helps to save resources.

[0182] It should be understood that the above two implementations in which the EDMG-Header-A field carries the sensing indication information are merely examples, and the specific location of the sensing indication information in the EDMG-Header-A field is not limited by this application.

[0183] The above describes the method embodiment in the embodiment of the present application, and the following describes the corresponding device embodiment. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, and therefore, for the parts not described in detail, reference should be made to the above method embodiment.

[0184] 5 is a schematic diagram of a communication device according to an embodiment of the present application. As shown in FIG. 5, the device 1000 may include a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 can communicate with the outside, and the processing unit 1020 is configured to process data. The transceiver unit 1010 may also be referred to as a communication interface or a transceiver unit.

[0185] In a possible design, the apparatus 1000 may implement the procedures performed by the transmitting end in the above method embodiments. The processing unit 1020 is configured to perform the processing-related operations of the transmitting end in the above method embodiments. The transceiver unit 1010 is configured to perform the receiving / transmitting-related operations of the transmitting end in the above method embodiments.

[0186] For example, the processing unit 1020 is configured to generate a physical layer protocol data unit PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, and the PPDU is a directional multi-gigabit DMG single carrier mode PPDU, an enhanced directional multi-gigabit EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU.

[0187] The transceiver unit 1010 is configured to transmit the PPDU.

[0188] Optionally, the PPDU is a DMG single carrier mode PPDU, where the DMG single carrier mode PPDU includes a DMG header field, in which an additional PPDU indication field and a training length indication field carry sensing indication information.

[0189] Optionally, the additional PPDU indication field is a B30 field in the DMG header field, and the training length indication field is a B32 field to a B36 field in the DMG header field.

[0190] Optionally, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, where the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and an additional PPDU indication field in the L-header field carries sensing indication information.

[0191] Optionally, the additional PPDU indication field is a B30 field in the L-header field.

[0192] Optionally, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and a DMG training indication field in the EDMG-Header-A field indicates that the PPDU includes a DMG training field or that the PPDU includes an EDMG training field.

[0193] Optionally, the DMG training instruction field is a B101 field in the EDMG-Header-A field.

[0194] Optionally, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes a DMG training field, and a training length indication field in the L-header field indicates the length of the DMG training field.

[0195] Optionally, the training length indication field is the B32 field through the B36 field in the L-header field.

[0196] Optionally, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG training field, and an EDMG training length indication field in the EDMG-Header-A field indicates the length of the EDMG training field.

[0197] Optionally, the EDMG Training Length Indicator field is a B64 field through a B71 field in the EDMG-Header-A field.

[0198] Optionally, the PPDU is a DMG single carrier mode PPDU, the DMG single carrier mode PPDU including a DMG header field, and a B47 field in the DMG header field carries sensing indication information; or The PPDU is an EDMG Single Carrier Mode PPDU or an EDMG Orthogonal Frequency Division Multiplexing Mode PPDU, the EDMG Single Carrier Mode PPDU or the EDMG Orthogonal Frequency Division Multiplexing Mode PPDU including an L-header field, and a B47 field in the L-header field carrying sensing indication information; or The PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and the EDMG-Header-A field carries sensing indication information.

[0199] Optionally, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and an additional EDMG PPDU indication field and an EDMG training length indication field in the EDMG-Header-A field carry sensing indication information.

[0200] Optionally, the additional EDMG PPDU indication field is a B95 field in the EDMG-Header-A field, and the EDMG training length indication field is a B64 field to a B71 field in the EDMG-Header-A field.

[0201] In yet another possible design, the apparatus 1000 may implement the procedures performed by the receiving end in the above method embodiments, where the transceiver unit 1010 is configured to perform the receiving / transmitting related operations of the receiving end in the above method embodiments, and the processing unit 1020 is configured to perform the processing related operations of the receiving end in the above method embodiments.

[0202] For example, the transceiver unit 1010 is configured to receive a physical layer protocol data unit PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurements, and the PPDU is a DMG single carrier mode PPDU, an EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU.

[0203] The processing unit 1020 is configured to determine, based on the sensing indication information, that the PPDU is a PPDU used for the sensing indication information.

[0204] Optionally, the PPDU is a DMG single carrier mode PPDU, where the DMG single carrier mode PPDU includes a DMG header field, in which an additional PPDU indication field and a training length indication field carry sensing indication information.

[0205] Optionally, the additional PPDU indication field is a B30 field in the DMG header field, and the training length indication field is a B32 field to a B36 field in the DMG header field.

[0206] Optionally, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, where the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and an additional PPDU indication field in the L-header field carries sensing indication information.

[0207] Optionally, the additional PPDU indication field is a B30 field in the L-header field.

[0208] Optionally, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and a DMG training indication field in the EDMG-Header-A field indicates that the PPDU includes a DMG training field or that the PPDU includes an EDMG training field.

[0209] Optionally, the DMG training instruction field is a B101 field in the EDMG-Header-A field.

[0210] Optionally, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes a DMG training field, and a training length indication field in the L-header field indicates the length of the DMG training field.

[0211] Optionally, the training length indication field is the B32 field through the B36 field in the L-header field.

[0212] Optionally, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG training field, and an EDMG training length indication field in the EDMG-Header-A field indicates the length of the EDMG training field.

[0213] Optionally, the EDMG Training Length Indicator field is a B64 field through a B71 field in the EDMG-Header-A field.

[0214] Optionally, the PPDU is a DMG single carrier mode PPDU, the DMG single carrier mode PPDU including a DMG header field, and a B47 field in the DMG header field carries sensing indication information; or The PPDU is an EDMG Single Carrier Mode PPDU or an EDMG Orthogonal Frequency Division Multiplexing Mode PPDU, the EDMG Single Carrier Mode PPDU or the EDMG Orthogonal Frequency Division Multiplexing Mode PPDU including an L-header field, and a B47 field in the L-header field carrying sensing indication information; or The PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-Header-A field, and the EDMG-Header-A field carries sensing indication information.

[0215] Optionally, the PPDU is an EDMG single carrier mode PPDU or an EDMG orthogonal frequency division multiplexing mode PPDU, and an additional EDMG PPDU indication field and an EDMG training length indication field in the EDMG-Header-A field carry sensing indication information.

[0216] Optionally, the additional EDMG PPDU indication field is a B95 field in the EDMG-Header-A field, and the EDMG training length indication field is a B64 field to a B71 field in the EDMG-Header-A field.

[0217] It should be understood that the device 1000 here is presented in the form of a functional unit. The term "unit" here may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group processor) configured to execute one or more software or firmware processors, a memory, an integrated logic circuit, and / or other suitable components supporting the described functions. In any example, a person skilled in the art can understand that the device 1000 may specifically be a transmitting end in the above embodiment and may be configured to execute a procedure corresponding to the transmitting end in the above method embodiment. Alternatively, the device 1000 may specifically be a receiving end in the above embodiment and may be configured to execute a procedure corresponding to the receiving end in the above method embodiment. To avoid repetition, details will not be described again here.

[0218] The apparatus 1000 comprises a function for performing corresponding steps performed by a transmitting end in the above method, or the apparatus 1000 comprises a function for performing corresponding steps performed by a receiving end in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. For example, a transceiver unit may be replaced by a transceiver (e.g., a transmitting unit in a transceiver unit may be replaced by a transmitter, and a receiving unit in a transceiver unit may be replaced by a receiver). Other units, such as a processing unit, may be replaced by a processor to separately perform the transmitting and receiving operations and related processing operations in each method embodiment.

[0219] Furthermore, the transceiver unit may alternatively be a transceiver circuit (e.g., may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit. In this embodiment of the present application, the device of FIG. 5 may be the receiving end or the transmitting end in the above embodiment, or may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input / output circuit or a communication interface. The processing unit is a processor, a microprocessor, or an integrated circuit integrated on a chip. This is not limited here.

[0220] 6 illustrates a communication device 2000 according to an embodiment of the present application. The device 2000 includes a processor 2010 and a memory 2020. The memory 2020 is configured to store instructions. The processor 2010 can call the instructions stored in the memory to execute procedures corresponding to the sending end or the receiving end in the above method embodiments.

[0221] Specifically, in a possible implementation, the memory 2020 may be configured to store instructions, and the processor 2010 may call up the instructions stored in the memory 2020 to execute procedures corresponding to the transmitting end in the above method embodiment.

[0222] Specifically, in another possible implementation, the memory 2020 may be configured to store instructions, and the processor 2010 may call up the instructions stored in the memory 2020 to execute procedures corresponding to the receiving end in the above method embodiments.

[0223] It should be understood that the device 2000 may specifically be the transmitting end or the receiving end in the above embodiment, or may be a chip or chip system used in the transmitting end or the receiving end. Specifically, the device 2000 may be configured to execute a procedure corresponding to the transmitting end or the receiving end in the above method embodiment.

[0224] Optionally, the memory 2020 may include read-only memory and random access memory to provide instructions and data to the processor. A portion of the memory may further include non-volatile random access memory. For example, the memory may store device type information. The processor 2010 may be configured to execute instructions stored in the memory. When the processor 2010 executes the instructions stored in the memory, the processor 2010 is configured to perform the procedures of a method embodiment corresponding to a transmitting end or a receiving end.

[0225] In the implementation process, the steps of the above method may be implemented by using hardware integrated logic circuits in a processor or by using instructions in the form of software. The steps of the method disclosed with reference to the embodiments of the present application may be directly executed by a hardware processor, or may be executed by using a combination of hardware and software modules in a processor. The software modules may be placed in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, or a register. The storage medium may be placed in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with the hardware of the processor. To avoid repetition, the details will not be described again here.

[0226] It should be noted that the processor of the embodiments of the present application may be an integrated circuit chip and has signal processing capabilities. In the implementation process, the steps of the above method embodiments may be implemented by using hardware integrated logic circuits in the processor or by using instructions in the form of software. The processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The processor of the embodiments of the present application may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and so on. The steps of the methods disclosed with reference to the embodiments of the present application may be directly executed by a hardware processor, or may be executed by using a combination of hardware and software modules in the processor. The software modules may be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, or a register. The storage medium is placed in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with the processor's hardware.

[0227] It can be understood that the memory of the embodiments of the present application may be volatile or non-volatile memory, or may include volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory may be random access memory (RAM) used as an external cache. By way of example and not of limitation, various types of RAM may be used, such as, for example, static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct rambus dynamic random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein includes, but is not limited to, these and any other suitable types of memory.

[0228] 7 illustrates a communication device 3000 according to an embodiment of the present application. The device 3000 includes a processing circuit 3010 and a transceiver circuit 3020. The processing circuit 3010 and the transceiver circuit 3020 communicate with each other through an internal connection path. The processing circuit 3010 is configured to execute instructions to control the transceiver circuit 3020 to perform signal transmission and / or signal reception.

[0229] Optionally, the apparatus 3000 may further include a storage medium 3030. The storage medium 3030 communicates with the processing circuit 3010 and the transceiver circuit 3020 through an internal connection path. The storage medium 3030 is configured to store instructions, and the processing circuit 3010 may execute the instructions stored in the storage medium 3030.

[0230] In a possible implementation, the apparatus 3000 is configured to perform procedures corresponding to the transmitting end of the above method embodiments.

[0231] In another possible implementation, the apparatus 3000 is configured to perform procedures corresponding to the receiving end of the method embodiments described above.

[0232] According to the method provided in the embodiment of the present application, the present application further provides a computer program product, which includes a computer program code, which, when executed on a computer, causes the computer to perform the method of the embodiment shown in FIG.

[0233] According to the method provided in the embodiment of the present application, the present application further provides a computer-readable medium, which stores a program code, which, when executed by a computer, causes the computer to execute the method of the embodiment shown in FIG.

[0234] According to the method provided in the embodiment of the present application, the present application further provides a system including one or more stations as described above and one or more access points as described above.

[0235] As used herein, the term "at least one of" refers to all or any combination of the listed items. For example, "at least one of A, B, and C" can refer to the following six cases: only A is present, only B is present, only C is present, A and B coexist, B and C coexist, and A, B, and C coexist. As used herein, "at least one" means one or more. "Multiple..." means two or more.

[0236] In the embodiments of the present application, it should be understood that "B corresponding to A" indicates that B is associated with A, and B can be determined based on A. It should be further understood that determining B based on A does not mean that B is determined only based on A. B may alternatively be determined based on A and / or other information. The terms "including" and "having" and variations thereof all mean "including but not limited to," unless specifically emphasized otherwise.

[0237] It should be understood that in the various embodiments of the present application, the first, second, and various numbers are merely used to distinguish for ease of description, and are not used to limit the scope of the embodiments of the present application, e.g., to distinguish different information.

[0238] Those skilled in the art can realize that, in combination with the examples described in the embodiments disclosed herein, the units and algorithm steps can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether a function is implemented by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but the implementation should not be considered to go beyond the scope of the present application.

[0239] As can be clearly understood by those skilled in the art, for convenience and concise description, the detailed operation processes of the above systems, devices and units are referred to the corresponding steps in the above method embodiments, and the details are not described again here.

[0240] In some embodiments provided in the present application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiment described is merely an example. For example, the division into units is merely a logical division of functions, and may be other divisions in actual implementation. For example, multiple units or components may be combined or integrated into other systems, or some functions may be ignored or not performed. In addition, the shown or discussed mutual couplings or direct couplings or communication connections may be implemented by using some interface. Indirect couplings or communication connections between devices or units may be implemented in electronic, mechanical, or other forms.

[0241] The units described as separate parts may or may not be physically separated, and the parts shown as units may or may not be physical units, and may be located in one place or distributed over multiple network units. Some or all of the units may be selected based on actual requirements to achieve the objectives of the solutions of the embodiments.

[0242] Furthermore, the functional units of the embodiments of the present application may be integrated into one processing unit, each unit may exist physically independently, or two or more units may be integrated into one unit.

[0243] When the functions are implemented in the form of a software functional unit and sold or used as an independent product, the functions may be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application may be essentially implemented in the form of a software product, or the part that contributes to the prior art, or some of the technical solutions. The computer software product is stored in a storage medium and includes some instructions for instructing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. The above storage medium includes any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0244] The above description is merely a specific implementation of the present application, and is not intended to limit the scope of protection of the present application. Any variations or replacements that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should fall within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

[0245] This application claims priority to Chinese Patent Application No. 202210197564.3, filed on March 1, 2022, for the invention titled "INFORMATION INDICATION METHOD AND COMMUNICATION APPARATUS," which is incorporated herein by reference in its entirety.

[0246] This application claims priority to Chinese Patent Application No. 202210217458.7, filed on March 7, 2022, for the invention titled "INFORMATION INDICATION METHOD AND COMMUNICATION APPARATUS," which is incorporated herein by reference in its entirety.

Claims

1. generating a physical layer protocol data unit (PPDU), the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, the PPDU being a directional multi-gigabit (DMG) single carrier (SC) mode PPDU, an enhanced directional multi-gigabit (EDMG) single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing (OFDM) mode PPDU; transmitting the PPDU; An information indication method comprising the steps of:

2. receiving a PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, the PPDU being a DMG single carrier mode PPDU, an EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU; determining, based on the sensing indication information, that the PPDU is a PPDU used for the sensing indication information; An information indication method comprising:

3. The PPDU is the DMG single carrier mode PPDU, the DMG single carrier mode PPDU includes a DMG header field, and an additional PPDU indication field and a training length indication field in the DMG header field carry the sensing indication information. The method according to claim 1 or 2.

4. The additional PPDU indication field is a B30 field in the DMG header field, and the training length indication field is a B32 field to a B36 field in the DMG header field. The method according to claim 3.

5. The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and an additional PPDU indication field in the L-header field carries the sensing indication information. The method according to claim 1 or 2.

6. The additional PPDU indication field is a B30 field in the L-header field. The method according to claim 5.

7. The EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-header-A field, and a DMG training indication field in the EDMG-header-A field indicates that the PPDU includes a DMG training field or that the PPDU includes an EDMG training field. The method according to claim 5 or 6.

8. The EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes the DMG training field, and a training length indication field in the L-header field indicates the length of the DMG training field. The method according to claim 7.

9. The training length indication field is a B32 field to a B36 field in the L-header field. The method according to claim 8.

10. The EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes the EDMG training field, and an EDMG training length indication field in the EDMG-header-A field indicates the length of the EDMG training field. The method according to claim 7.

11. The EDMG training length indication field is the B64 field to the B71 field in the EDMG-header-A field. The method of claim 10.

12. The PPDU is the DMG single carrier mode PPDU, the DMG single carrier mode PPDU includes a DMG header field, and a B47 field in the DMG header field carries the sensing indication information; or The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and a B47 field in the L-header field carries the sensing indication information; or The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-header-A field, and the EDMG-header-A field carries the sensing indication information. The method according to claim 1 or 2.

13. The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, and an additional EDMG PPDU indication field and an EDMG training length indication field in the EDMG-header-A field carry the sensing indication information; The method of claim 12.

14. The additional EDMG PPDU indication field is a B95 field in the EDMG-header-A field, and the EDMG training length indication field is a B64 field to a B71 field in the EDMG-header-A field. The method of claim 13.

15. a processing unit configured to generate a PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, the PPDU being a DMG single carrier mode PPDU, an EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU; and a transceiver unit configured to transmit the PPDU; A communication device having the above configuration.

16. a transceiver unit configured to receive a PPDU, the PPDU including sensing indication information, the sensing indication information indicating that the PPDU is a PPDU used for sensing measurement, the PPDU being a DMG single carrier mode PPDU, an EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU; a processing unit configured to determine, based on the sensing indication information, that the PPDU is a PPDU used for the sensing indication information; A communication device having the above configuration.

17. The PPDU is the DMG single carrier mode PPDU, and the DMG single carrier mode PPDU includes a DMG header field, and an additional PPDU indication field and a training length indication field in the DMG header field carry the sensing indication information.

17. Apparatus according to claim 15 or 16.

18. The additional PPDU indication field is a B30 field in the DMG header field, and the training length indication field is a B32 field to a B36 field in the DMG header field.

20. The apparatus of claim 17.

19. The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and an additional PPDU indication field in the L-header field carries the sensing indication information.

17. Apparatus according to claim 15 or 16.

20. The additional PPDU indication field is a B30 field in the L-header field.

20. The apparatus of claim 19.

21. The EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-header-A field, and a DMG training indication field in the EDMG-header-A field indicates that the PPDU includes a DMG training field or that the PPDU includes an EDMG training field.

21. Apparatus according to claim 19 or 20.

22. The EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes the DMG training field, and a training length indication field in the L-header field indicates the length of the DMG training field.

22. The apparatus of claim 21.

23. The training length indication field is a B32 field to a B36 field in the L-header field.

23. The apparatus of claim 22.

24. The EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes the EDMG training field, and an EDMG training length indication field in the EDMG-header-A field indicates the length of the EDMG training field.

22. The apparatus of claim 21.

25. The EDMG training length indication field is the B64 field to the B71 field in the EDMG-header-A field.

25. The apparatus of claim 24.

26. The PPDU is the DMG single carrier mode PPDU, the DMG single carrier mode PPDU includes a DMG header field, and a B47 field in the DMG header field carries the sensing indication information; or The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an L-header field, and a B47 field in the L-header field carries the sensing indication information; or The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, and the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU includes an EDMG-header-A field, and the EDMG-header-A field carries the sensing indication information.

17. Apparatus according to claim 15 or 16.

27. The PPDU is the EDMG single carrier mode PPDU or the EDMG orthogonal frequency division multiplexing mode PPDU, and an additional EDMG PPDU indication field and an EDMG training length indication field in the EDMG-header-A field carry the sensing indication information; 27. The apparatus of claim 26.

28. The additional EDMG PPDU indication field is a B95 field in the EDMG-header-A field, and the EDMG training length indication field is a B64 field to a B71 field in the EDMG-header-A field.

28. The apparatus of claim 27.

29. 1. A communications device having a processor coupled to a memory, the processor comprising: The processor is configured to execute computer programs or instructions stored in the memory to enable the device to perform the method of any one of claims 1 to 14. Communications equipment.

30. A chip having processing circuitry configured to retrieve a computer program or instructions from a storage medium and to execute said computer program or instructions to perform the method of any one of claims 1 to 14.

31. having a computer program or instructions; The computer program or instructions, when executed on a computer, enable the computer to carry out the method according to any one of claims 1 to 14. A computer-readable storage medium.

32. Have orders, The instructions, when executed on a computer, enable the computer to carry out the method according to any one of claims 1 to 14. Computer program products.

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