Communication method and related device

Description

1 / 40 “COMMUNICATION METHOD AND RELATED DEVICE” TECHNICAL FIELD

[0001] The modalities of the present application relate to the field of communication technologies and, more specifically, to a method of communication and related devices. BACKGROUND

[0002] Ultra-wideband (UWB) technology is increasingly being used for indoor positioning and other location services, such as access control and asset location. In addition to dedicated devices and tags, UWB radios are becoming increasingly common in terminal devices. The UWB physical layer (PHY) and medium access control (MAC) are standardized by the Institute of Electrical and Electronics Engineers (IEEE).

[0003] In addition to the traditional range measurement use case, other use cases such as device-free detection, downlink time-of-arrival difference (DL-TDOA), long-range range measurement, etc. are being actively investigated. To address the long-range range measurement use case, UWB Multi-Millisecond (MMS) range measurement was introduced. The main idea behind MMS range measurement is to distribute the UWB range measurement frames into multiple fragments and the fragment being transmitted over multiple milliseconds (ms), thereby overcoming the emitted energy limit of 37 nJ per ms. MMS range measurement can be further enhanced by a high-performance narrowband (NB) radio that is used to provide time synchronization for the UWB radio and is also used for control signaling.In MMS range measurement, the number of fragments required for range measurement depends on the range to be measured as well as the channel conditions and therefore can be dynamically adjusted even within the same range measurement session.

[0004] An MMS range measurement session may include a startup and adjustment phase followed by one or more range measurement cycles. During the startup and adjustment phase, frames are transmitted on the startup channel, while during the measurement cycles, frames are Petition 870260062297, dated 06 / 25 / 2026, page 11 / 65 2 / 40 transmitted on the range measurement channel. It is possible to use the same channel as the initialization channel and the range measurement channel.

[0005] In the initialization and adjustment phase, an initiator and a responder can negotiate range measurement configuration, and the range measurement configuration can be carried by a compressed PHY service data unit (PSDU). Range measurement MMS packets can be exchanged between the initiator and responder during the range measurement cycle. Due to the nature of UWB transmissions (wide bandwidth and low transmission power), it is relatively more difficult to detect a UWB signal blindly (compared to an NB signal). As such, in order to avoid accidental interference on UWB channels, it is desirable to coordinate the use of UWB channels between UWB transmitters using one or both of the UWB and NB transceivers. This can be achieved by UWB initiators periodically transmitting acquisition (AP) packets on some common well-known UWB and / or NB channels.When transmitted on NB channels, the AP message is known as an NB AP message, and when transmitted on UWB channels, the AP message is known as a UWB AP message. Control information carried by the compressed PSDU can be exchanged between the initiator and the responder in the range-measurement cycle.

[0006] Both compressed PSDUs and the NB AP message can be transmitted on the boot channel. Since the format of the compressed PSDU is different from that of the NB AP message, a question arises: how to ensure that the NB AP message and the compressed PSDU can coexist on the same channel, that is, how can a receiving device differentiate the compressed PSDU from the NB AP message? This question can be generalized as a question of coexistence between compressed PSDUs and any other packet transmitted on the NB channel and using the same physical layer (PHY), for example, IEEE 802.15.4 quadrature phase-shift keying (O-QPSK) PHY. SUMMARY

[0007] The modalities of this application provide a method of communication and related devices. The technical solution can be used to identify a compact PSDU. Petition 870260062297, dated 06 / 25 / 2026, p. 12 / 65 3 / 40

[0008] According to a first aspect, an embodiment of the present application provides a method of communication, including: receiving a first physical layer protocol (PHY) data unit (PPDU), wherein the first PPDU includes type instruction information, wherein the type instruction information is configured to indicate whether the first PPDU carries a compressed PHY service data unit (PSDU); and processing the information carried by the payload field of the first PPDU.

[0009] According to the technical solution mentioned above, the compressed PPDU can be identified according to the type instruction information carried by the PPDU. Therefore, a PPDU receiver can process the received PPDU according to the type instruction information.

[0010] In a possible design, where type instruction information is carried by a payload field of the first PPDU.

[0011] According to the technical solution mentioned above, the instruction type information can only occupy bits in the PPDU payload field.

[0012] In a possible design, where the instruction type information occupies N bits within the payload of the first PPDU, N is a positive integer, when a value of the N bits of the payload field of the first PPDU is a first pre-established value, the first PPDU carries the compressed PSDU; or when a value of the N bits of the payload field of the first PPDU is different from the first pre-established value, the first PPDU carries a first wireless frame, where the first wireless frame is different from the compressed PSDU.

[0013] According to the technical solution mentioned above, the type instruction can not only be used to indicate that the PPDU carries the compressed PSDU, but also to indicate that the PPDY carries a wireless frame. The wireless frame can be used to carry applications. For example, the wireless frame could be a data frame carrying an NB AP message. As another example, the wireless frame could be a frame carrying a ZigBee packet or similar.

[0014] In a possible design, where the N bits of the payload field of the first PPDU are the first 3 bits of the compressed PPDU, and bits 3 to 7 or bits 3 to 10 are configured to indicate a type of information carried by the Petition 870260062297, dated 06 / 25 / 2026, p. 13 / 65 4 / 40 Compacted PSDU; or the N bits of the payload field of the first PSDU are 3 bits of a frame type field of the first wireless frame.

[0015] According to the technical solution mentioned above, the type instruction can not only be used to indicate that the PPDU carries the compressed PSDU, but also be used to indicate that the PPDY carries a wireless frame and a type of wireless frame carried by the PPDU.

[0016] In a possible project, where the first pre-established value is 100.

[0017] According to the application mentioned above, the reserved frame type value can be used to indicate that the PPDU payload is a compressed PSDU instead of a defined wireless frame (e.g., a beacon frame, a data frame, or similar).

[0018] In a possible design, wherein when the N-bit value of the payload field of the first PPDU is the first pre-established value, the compressed PPDU is carried by a second wireless frame, and the second wireless frame is carried by the payload of the first PPDU, wherein one type of the second wireless frame is different from one type of the first wireless frame.

[0019] In a possible design, wherein the N bits include 3 bits of a frame type field of the second wireless frame and 3 bits of an extended frame type field of the second wireless frame, wherein the 3 bits of the frame type field indicate that the type of the second wireless frame is an extended frame, and the 3 bits of the extended frame type field indicate that the payload field of the extended frame carries the compressed PSDU.

[0020] In a possible design, wherein the N bits include 3 bits of a frame type field from a frame control field of the second wireless frame, and the 3 bits of the frame type field indicate that the type of the second wireless frame is a multipurpose frame, and the N bits additionally include 2 bits of a destination addressing mode field and 2 bits of a source addressing mode field from the frame control field of the second wireless frame, wherein the 2 bits of the destination addressing mode field indicate that a destination address length is 3 octets, or, the 2 bits of the source addressing mode field indicate that a source address length is 3 octets. Petition 870260062297, dated 06 / 25 / 2026, page 14 / 65 5 / 40

[0021] In a possible design, where when the first PPDU carries the first wireless frame, the first wireless frame includes application type indication information, where the application type indication information indicates a type of information carried by the first wireless frame.

[0022] In a possible project, the type of information carried by the first wireless frame is a ZigBee message, a 6LoWPAN message, or an NB UWB message.

[0023] In a possible design, wherein the first wireless frame additionally includes application subtype indication information, wherein the application subtype indication information indicates a subtype of the information carried by the first wireless frame.

[0024] In a possible design, where the instruction type information occupies N bits within the payload of the first PPDU, N is a positive integer, when a value of the N bits of the payload field of the first PPDU is a second pre-established value, the first PPDU carries the compressed PSDU and the compressed PSDDU carries application information; or when a value of the N bits of the payload field of the first PPDU is different from a second pre-established value, the first PPDU carries the compressed PSDDU and the compressed PSDDU carries control information.

[0025] In a possible project, where when the value of the N bits of the payload field of the first PPDU is the second pre-established value, the application information carried by the compressed PPDU is an NP AP message or an NB data traffic.

[0026] In a possible project, where when the compressed PSDU carries the application information, a value of a message control field of the compressed PSDU indicates that one type of application information is the NP AP message or NB data traffic.

[0027] In a possible project, when the compressed PSDU carries application information and the application information is the first application information that carries a private address, the private address is carried by a transmitter address field of the compressed PSDU.

[0028] In a possible project, where when the value of the N bits of the payload field of the first PPDU is the second pre-established value, the Petition 870260062297, dated 06 / 25 / 2026, page 15 / 65 6 / 40 A compressed PSDU carries a third wireless frame, where the third wireless frame carries the application information.

[0029] In a possible project, where the instruction type information is carried by a PHY header field of the first PPDU.

[0030] In a possible design, where the instruction type information occupies one bit in the PHY header field of the first PPDU, when a value of one bit is a third pre-established value, the PPDU carries the PSDU; when a value of one bit is a fourth pre-established value, the PPDU carries a wireless frame that is different from the PSDDU.

[0031] According to the technical solution mentioned above, the instruction type information can only mention one bit in the PPDU. Therefore, the PPDU payload can be used to carry more information.

[0032] In a possible project, wherein the method additionally includes: receiving at least one second PPDU, wherein the second PPDU includes an initial transmission field, the initial transmission field indicates a start or end of an ultra-wideband (UWB) transmission on a UWB channel coupled to an NB channel to transmit the second PPDU.

[0033] In a possible design, where when the UWB transmission duration is shorter than twice the transmission duration of the second PPDU, receiving at least one second PPDU includes: receiving a second PPDU at an initial time of the UWB transmission, where the initial transmission field carried by the second PPDU received indicates the end of the UWB transmission; or when the UWB transmission duration is equal to or greater than twice the transmission duration of the second PPDU, receiving at least one second PPDU includes: receiving two second PPDUs, where the two second PPDUs include an initial PPDU with an initial transmission field indicating the start of the UWB transmission and a final PPDU with an initial transmission field indicating the end of the UWB transmission, the initial PPDU is received at an initial time of the UWB transmission, and a final time of the second PPDU is a final time of the UWB transmission.

[0034] According to a second aspect, an embodiment of the present application provides a method of communication, including: generating a first physical layer PPDU; transmitting the first PPDU, wherein the first PPDU includes type instruction information, wherein the information of Petition 870260062297, dated 06 / 25 / 2026, page 16 / 65 The 7 / 40 type instruction is configured to indicate whether the first PPDU carries a compressed PHY service data unit (PSDU).

[0035] In a possible design, where type instruction information is carried by a payload field of the first PPDU.

[0036] In a possible design, where the instruction type information occupies N bits within the payload of the first PPDU, N is a positive integer, when a value of the N bits of the payload field of the first PPDU is a first pre-established value, the first PPDU carries the compressed PSDU; or when a value of the N bits of the payload field of the first PPDU is different from the first pre-established value, the first PPDU carries a first wireless frame, where the first wireless frame is different from the compressed PSDU.

[0037] In a possible design, where the N bits of the payload field of the first PPDU are the first 3 bits of the compressed PSDU, and bits 3 to 7 or bits 3 to 10 are configured to indicate a type of information carried by the compressed PSDU; or the N bits of the payload field of the first PPDU are 3 bits of a frame type field of the first wireless frame.

[0038] In a possible project, where the first pre-established value is 100.

[0039] In a possible design, wherein when the N-bit value of the payload field of the first PPDU is the first pre-established value, the compressed PPDU is carried by a second wireless frame, and the second wireless frame is carried by the payload of the first PPDU, wherein one type of the second wireless frame is different from one type of the first wireless frame.

[0040] In a possible design, wherein the N bits include 3 bits of a frame type field of the second wireless frame and 3 bits of an extended frame type field of the second wireless frame, wherein the 3 bits of the frame type field indicate that the type of the second wireless frame is an extended frame, and the 3 bits of the extended frame type field indicate that the payload field of the extended frame carries the compressed PSDU.

[0041] In a possible design, where the N bits include 3 bits of a frame type field from a frame control field of the second wireless frame, and the 3 bits of the frame type field indicate that the type of the second wireless frame is a multi-purpose frame, and the N bits include, Petition 870260062297, dated 06 / 25 / 2026, page 17 / 65 8 / 40 additionally, 2 bits of a destination addressing mode field and 2 bits of a source addressing mode field from the frame control field of the second wireless frame, wherein the 2 bits of the destination addressing mode field indicate that a destination address length is 3 octets, or, the 2 bits of the source addressing mode field indicate that a source address length is 3 octets.

[0042] In a possible design, where when the first PPDU carries the first wireless frame, the first wireless frame includes application type indication information, wherein the application type indication information indicates a type of information carried by the first wireless frame.

[0043] In a possible project, the type of information carried by the first wireless frame is a ZigBee message, a 6LoWPAN message, or an NB UWB message.

[0044] In a possible design, wherein the first wireless frame additionally includes application subtype indication information, wherein the application subtype indication information indicates a subtype of the information carried by the first wireless frame.

[0045] In a possible design, where the instruction type information occupies N bits within the payload of the first PPDU, N is a positive integer, when a value of the N bits of the payload field of the first PPDU is a second pre-established value, the first PPDU carries the compressed PSDU and the compressed PSDDU carries application information; or when a value of the N bits of the payload field of the first PPDU is different from a second pre-established value, the first PPDU carries the compressed PSDDU and the compressed PSDDU carries control information.

[0046] In a possible project, where when the value of the N bits of the payload field of the first PPDU is the second pre-established value, the application information carried by the compressed PPDU is an NP AP message or an NB data traffic.

[0047] In a possible project, where when the compressed PSDU carries the application information, a value of a message control field of the compressed PSDU indicates that one type of application information is the NP AP message or the NB data traffic. Petition 870260062297, dated 06 / 25 / 2026, page 18 / 65 9 / 40

[0048] In a possible project, when the compressed PSDU carries application information and the application information is the first application information that carries a private address, the private address is carried by a transmitter address field of the compressed PSDU.

[0049] In a possible design, where when the value of the N bits of the payload field of the first PPDU is the second pre-established value, the compressed PPDU carries a third wireless frame, where the third wireless frame carries the application information.

[0050] In a possible project, where the instruction type information is carried by a PHY header field of the first PPDU.

[0051] In a possible design, where the instruction type information occupies one bit in the PHY header field of the first PPDU, when a value of one bit is a third pre-established value, the PPDU carries the PSDU; when a value of one bit is a fourth pre-established value, the PPDU carries a wireless frame that is different from the PSDDU.

[0052] In a possible project, wherein the method additionally includes: transmitting at least one second PPDU, wherein the second PPDU includes an initial transmission field, the initial transmission field indicates a start or end of an ultra-wideband (UWB) transmission on a UWB channel coupled to an NB channel to transmit the second PPDU.

[0053] In a possible design, where the duration of the UWB transmission is shorter than twice the duration of the second PPDU transmission, the transmission of at least one second PPDU includes: transmitting a second PPDU at an initial time of the UWB transmission, where the initial transmission field carried by the received second PPDU indicates the end of the UWB transmission; or when the duration of the UWB transmission is equal to or greater than twice the duration of the second PPDU transmission, the transmission of at least one second PPDU includes: transmitting two second PPDUs, where the two second PPDUs include an initial PPDU with an initial transmission field indicating the start of the UWB transmission and a final PPDU with an initial transmission field indicating the end of the UWB transmission, the initial PPDU is received at an initial time of the UWB transmission, and a final time of the second PPDU is a final time of the UWB transmission. Petition 870260062297, dated 06 / 25 / 2026, p. 19 / 65 10 / 40

[0054] According to a third aspect, an embodiment of this application provides a communication apparatus, and the communication apparatus has the function of implementing the method in the first aspect or any possible implementation of the first aspect. The function may be implemented by hardware, or it may be implemented by hardware running corresponding software. The software hardware includes one or more modules that correspond to the function.

[0055] According to a fourth aspect, an embodiment of this application provides a communication apparatus, and the communication apparatus has the function of implementing the method in the second aspect or any possible implementation of the second aspect. The function may be implemented by hardware, or it may be implemented by hardware running corresponding software. The software hardware includes one or more modules that correspond to the function.

[0056] According to a fifth aspect, an embodiment of this application provides a computer-readable storage medium, including instructions. When the instructions are executed on a computer, the computer is enabled to perform the method in the first aspect or any possible implementation of the first aspect.

[0057] According to a sixth aspect, an embodiment of this application provides a computer-readable storage medium, including instructions. When the instructions are executed on a computer, the computer is enabled to perform the method in the second aspect or any possible implementation of the second aspect.

[0058] According to a seventh aspect, a communication apparatus is provided, including a processor and a memory. The processor is connected to the memory. The memory is configured to store instructions, the processor is configured to execute the instructions. When the processor executes the instructions stored in memory, the processor is enabled to perform the method in the first aspect or any possible implementation of the first aspect.

[0059] According to an eighth aspect, a communication apparatus is provided, including a processor and memory. The processor is connected to the memory. The memory is configured to store Petition 870260062297, dated 06 / 25 / 2026, page 20 / 65 11 / 40 instructions, the processor is configured to execute the instructions. When the processor executes the instructions stored in memory, the processor is enabled to perform the method in the second aspect or any possible implementation of the second aspect.

[0060] According to a ninth aspect, a chip system is provided, wherein the chip system includes an input / output interface, at least one processor, at least one memory, and a bus, wherein at least one memory is configured to store instructions, and at least one processor is configured to invoke instructions from at least one memory and execute instructions, such that a communication apparatus in which the chip is disposed accomplishes the method in the first aspect or any possible implementation of the first aspect.

[0061] According to a tenth aspect, a chip system is provided, wherein the chip system includes an input / output interface, at least one processor, at least one memory, and a bus, wherein at least one memory is configured to store instructions, and at least one processor is configured to invoke instructions from at least one memory and execute instructions, such that a communication apparatus in which the chip is disposed accomplishes the method in the second aspect or any possible implementation of the second aspect.

[0062] According to an eleventh aspect, a computer program product is provided, wherein when the computer program product runs on a communication device, the communication device is enabled to perform the method in the first aspect or any possible implementation of the first aspect.

[0063] According to a twelfth aspect, a computer program product is provided, wherein when the computer program product runs on a communication device, the communication device is enabled to perform the method in the second aspect or any possible implementation of the second aspect. DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 illustrates an example of a communication system.

[0065] Figure 2 illustrates an initialization and adjustment phase followed by measurement cycles. Petition 870260062297, dated 06 / 25 / 2026, page 21 / 65 12 / 40

[0066] Figure 3 illustrates a compressed PSDU format.

[0067] Figure 4 illustrates a general MAC format.

[0068] Figure 5 illustrates a frame control field.

[0069] Figure 6 illustrates a relationship between a PHY protocol data unit (PPDU), a data frame, and an NB AP message.

[0070] Figure 7 illustrates a relationship between PPDU and compacted PSDU.

[0071] Figure 8 illustrates a diagram of a communication method according to some modalities of the present application.

[0072] Figure 9 illustrates compacted PSDUs according to some embodiments of the present application.

[0073] Figure 10 illustrates the extended framework according to some embodiments of the present application.

[0074] Figure 11 illustrates the multi-purpose framework according to some embodiments of the present application.

[0075] Figure 12 illustrates the second compressed PSDU according to some embodiments of the present application.

[0076] Figure 13 illustrates a PPDU that carries the instruction type information according to some modalities of the present request.

[0077] Figure 14 illustrates a data frame including the application type field and the application subtype field.

[0078] Figure 15 illustrates another data frame including the application type field and the application subtype field.

[0079] Figure 16 illustrates a PPDU carrying the initial transmission field.

[0080] Figure 17 illustrates a relationship between the second PHY data unit and UWB transmission.

[0081] Figure 18 is a schematic block diagram of a communication device according to some embodiments of the present application.

[0082] Figure 19 is a schematic block diagram of a communication device according to some embodiments of the present application. Petition 870260062297, dated 06 / 25 / 2026, p. 22 / 65 13 / 40

[0083] Figure 20 is a schematic block diagram of a communication device according to some embodiments of the present application. DESCRIPTION OF THE MODALITIES

[0084] The following content describes the technical solutions in this application with reference to the attached drawings.

[0085] In the modalities of this application, “at least one” means one or more, and “a plurality of” means two or more. The term “and / or” describes an association relationship between associated objects and represents which three relationships can exist. For example, A and / or B can represent the following three cases: only A exists, both A and B exist, and only B exists, where A and B can be singular or plural. The character “I” generally indicates an “or” relationship between the associated objects. “At least one of the following” and a similar expression refer to any combination of these items, including any combination of one item or a plurality of items. For example, at least one of a, bec can indicate: a, b, c, aeb, aec, bec, or a, bec, where a, bec can be singular or plural.

[0086] For a better understanding of a communication method in the modalities of this request, the following content briefly describes some related basic concepts.

[0087] Before describing the solutions in the present disclosure, relevant nomenclature will be introduced below.

[0088] Controller: a device that controls a UWB session and sets session parameters.

[0089] Control: a device that uses session parameters received from the controller to participate in the UWB session.

[0090] Initiator: a device that follows the controller's instruction and initiates a UWB exchange by sending the first exchange message. A controller or a control can be an initiator.

[0091] Responder: a device that responds to the first message received from the initiator and participates in the UWB exchange. A controller or a control can be a responder. Petition 870260062297, dated 06 / 25 / 2026, p. 23 / 65 14 / 40

[0092] Figure 1 illustrates an exemplary communication system 100.

[0093] In the communication system 100, a first device 110 can communicate with multiple other devices, such as a second device 120, and a third device 130. The communication can support applications such as range measurement, time of arrival difference detection (TDOA).

[0094] In some embodiments, the first device 110 may be a controller (initiator) while the second device 120 and the third device 130 may be controls (responders).

[0095] In some other embodiments, the second device may be a controller (initiator), while the first device 110 and the third device 130 may be controls (responders).

[0096] Figure 2 illustrates an initialization and adjustment phase followed by measurement cycles.

[0097] Referring to Figure 2, in the initialization and adjustment phase, an initiator may opportunely transmit advertisement poll (ADV-POLL) frames. Correspondingly, the responder may opportunely listen for incoming ADV-POLL frames. Once the responder has received an ADV-POLL frame, the responder may transmit an advertisement response frame (ADV-RESP) to the initiator. Once the initiator has received the ADV-RESP frame, the initiator may transmit a range-measurement start (SOR) frame in a range measurement slot following the ADV-RESP frame, indicating the time at which the range-measurement cycle will begin. A range-measurement cycle may include a range measurement control phase, a range measurement phase, and an optional measurement reporting phase. The range measurement control phase begins at the start of the range-measurement cycle.The initiator starts the range measurement control phase by transmitting a poll frame (POLL) to the responder at the beginning of the first range measurement slot of a range measurement round. Once the responder has successfully received the POLL frame, the responder can transmit a response frame (RESP) to the initiator. The POLL and RESP frames allow the initiator and responder to... Petition 870260062297, dated 06 / 25 / 2026, page 24 / 65 15 / 40 achieve time and frequency synchronization. The initiator can also include other control information in the POLL frame for the responder.

[0098] As mentioned earlier, the main idea behind MMS range measurement is to distribute UWB range measurement frames into multiple fragments, with each fragment being transmitted over multiple milliseconds, thereby overcoming the emitted energy limit of 37 nJ per ms. By distributing the range measurement frame across multiple fragments, each fragment being transmitted in one millisecond, the total energy of the range measurement frame can be several times greater, thus considerably increasing the range measurement range. This means that when block-based mode is used for MMS range measurement, the control frame transmission time will also be limited to 1 ms. Particularly in NBA-MMS mode, at the lowest data rate of 250 kbps for O-QPSK PHY, the NB frame size is limited to 25 bytes in one ms. If the frame format is 802.15.4-2020 general legacy illustrated in Figure 4 for use, due to the overhead of the MHR field and the information elements (IEs), the space available for the actual control information will be very limited.

[0099] In order to overcome this size limitation, a compressed PSDU format that uses private addresses was introduced, and the compressed PSDU can be used to transmit information with a specific transmission duration limit, such as 1 ms. The ADV-POLL frame, the ADV-RESP frame, the POLL frame, and the RESP frame can be carried in the compressed PSDU.

[0100] Figure 3 illustrates a compressed PSDU format.

[0101] Referring to Figure 3, a compressed PSDU with a private address may include: a 1-octet message ID field, a 3-octet private address field carrying an RPA_hash, an optional 3-octet field carrying an RPA_prand, a 1-octet message control field that determines the format of a message content field, a variable-length message content field whose format depends on the content of the message content field, and a 2-octet cyclic redundancy check (CRC) field. The optional 3-octet field may be present in a compressed PSDU carrying Petition 870260062297, dated 06 / 25 / 2026, p. 25 / 65 16 / 40 certain frames (for example, the ADV-POLL frame or the POLL frame) and absent in a compressed PSDU that carries other frames (for example, the ADV-RESP frame, the RESP frame, or the SOR frame).

[0102] The compressed PSDU message content field can be used to carry the payload of the frames mentioned above. In addition to the frames mentioned above, the message content field can also be used to carry other messages. For convenience, the term “control information” refers to information carried by the compressed PSDU; for example, control information may include the payload of the frames mentioned above, and control information may additionally include information carried by other fields (e.g., the ID field, the RPA_hash field, the message control field, or similar). In some embodiments, control information may be considered to be the compressed PSDU.

[0103] A message ID field value is used to indicate a type of control information carried by the message content field. A relationship between the message ID field value and the type of control information carried by the message content field is shown in Table 1. Table 1 Compressed PSDU ID Value ADV-POLL 0x04 ADV-RESP 0x0C SOR 0x14 ADV-CONF 0x1C POLL 0x24 RESP 0x2C RPRT 0x34 RPRT 0x3C PUBLIC-ADV-POLL 0x44 PUBLIC-ADV-RESP 0x4C PUBLIC-SOR 0x54 SECURE-ADV-RESP 0x5C Petition 870260062297, dated 06 / 25 / 2026, page 26 / 65 17 / 40 SECURE-SOR 0x64 SECURE-POLL 0x6C SECURE-RESP 0x74 SECURE-POLL (One-to-many) 0x7C SECURE-REPORT (from initiator) 0x84 SECURE-REPORT (from responder) 0x8C Reserved 0x94 - 0xF4 Vendor Specific 0xFC

[0104] In IEEE 802.15.4, several medium control address (MAC) frames are defined, and different types of MAC frames serve different purposes, including data transmission, network synchronization, reliability assurance, and so on.

[0105] Figure 4 illustrates a general MAC format for frame type values ​​other than fragment and extended as defined in Table 2.

[0106] Fields of a MAC header (MHR) shown in Figure 4 appear in a fixed order; however, some fields shown in Figure 4 may not be included in all frames.

[0107] Figure 5 illustrates a frame control field for frames other than a multipurpose frame, a fragment frame, a frak frame, and an extended frame.

[0108] A frame type field value is used to indicate a frame type, and the frame type field can be set as defined in Table 2. Table 2 Frame Type b2 b1 b0 Description 000 Beacon 001 Data 010 Recognition 011 MAC Command 100 Reserved Petition 870260062297, dated 06 / 25 / 2026, p. 27 / 65 18 / 40 101 Multiple purposes 110 Fragment or Frak 111 Extended

[0109] The MAC frame is passed to the PHY as a PHY Service Data Unit (PSDU), which becomes the PHY payload. A MAC frame size can be smaller than the maximum PHY Service Data Unit (PSDU) size supported by the PHY in use. The NB AP message can be carried by a payload field of the MAC frame.

[0110] Figure 6 illustrates a relationship between a PHY protocol data unit (PPDU), a data frame, and an NB AP message.

[0111] Referring to Figure 6, a data frame payload field carries the data frame, and a MAC frame payload field carries the NB AP message. In addition to the data frame, the PPDU can also be used to carry other types of MAC frames, for example, the multipurpose frame, the extended frame, or similar. Additionally, other applications (such as ZigBee, Internet Protocol version 6 (IPv6) over low-power wireless personal area network (6LoWPAN)) or even other NB data applications (such as UWB-based payment portal applications) can also be carried by the PPDU payload. For convenience, the term "application information" refers to application data carried by the PPDU payload.In other words, application information may include ZigBee application data, 6LoWPAN application data, NB UWB application data or similar, and NB UWB application data may include the NB AP message, an NB data packet that is used to carry an application payload, such as payment gateways or similar. Application information (e.g., ZigBee application data, 6LoWPAN application data, and NB UWB application data) may be encapsulated in a packet with other information (e.g., address information, header, or similar), and the packet is carried by the payload field of the PPDU. For example, application information may be carried as a wireless frame payload (e.g., the MAC frame). Therefore, in some embodiments, application information may also be considered as a wireless frame, a MAC frame, a legacy 802.15.4 frame or similar, and the wireless frame (the MAC frame or the frame). Petition 870260062297, dated 06 / 25 / 2026, p. 28 / 65 19 / 40 802.15.4 legacy) ZigBee application data, 6L0WPAN application data, NB UWB application data, or similar. For ease of description, in the following embodiments, it is assumed that the term “application information” is used only to refer to the application data carried by the packet within the PPDU payload. In other words, in the following embodiments, “application information” includes only ZigBee application data, 6L0WPAN application data, NB UWB application data (including the NB AP message, an NB data packet that is used to carry an application payload, such as payment gateways and so on), or similar.

[0112] The PPDU can also be used to carry the compacted PSDU. Figure 7 illustrates a relationship between PPDU and compacted PSDDU. Referring to Figure 7, the PPDU payload carries the compacted PSDDU.

[0113] Figure 8 illustrates a diagram of a communication method according to some modalities of the present application.

[0114] 801, a first communication device receives a PHY data unit from a second communication device.

[0115] 802, the first communication device can process information carried by the PHY data unit.

[0116] In some embodiments, the PHY data unit may be the PPDU mentioned above.

[0117] The first communication device can process the information carried by the PPDU according to a type of information indicated by type instruction information.

[0118] Referring to the description mentioned above, since the initiator can transmit the PPDU carrying the control information (e.g., the ADV-POLL frame or the POLL frame) to the responder and the responder can also transmit the PPDU carrying the control information (e.g., the RESP frame), the first communication device, in some embodiments, can be the initiator and the second communication device can be the responder, while in other embodiments, the first communication device can be the responder and the second communication device can be the initiator. Petition 870260062297, dated 06 / 25 / 2026, page 29 / 65 20 / 40

[0119] A communication device (such as the first communication device and the second communication device) can be a device or a component of the device (such as a circuit or chip). The device can be a terminal device (for example, a mobile phone, a wearable device, a smartwatch, a virtual reality (VR) device, an augmented reality (AR) device, a mixed reality (MR) device, or similar), a computer-type device (for example, a personal computer (PC), a laptop computer, a tablet, or similar), a vehicle (such as an electric car, a hybrid car, a gasoline car, a motorcycle, or similar), an Internet of Things (IoT) device, or similar.

[0120] In some embodiments, the first communication device may be the first device 110 illustrated in Figure 1, and the second communication device may be the second device 120 or the third device 130 illustrated in Figure 1. In some other embodiments, the first communication device may be the second device 120 illustrated in Figure 1, and the second communication device may be the first device 110 or the third device 130 illustrated in Figure 1.

[0121] The PHY data unit may include type statement information. Type statement information is configured to indicate a type of information carried by the PHY data unit. The type of information carried by the PHY data unit may be a compressed PSDU. In other words, the type may be configured to indicate whether the PHY data unit carries a compressed PSDU.

[0122] In some embodiments, type instruction information may be carried by the payload field of the PHY data unit. For example, the payload field of the PHY data unit may include one or more bits, one value of which is used to indicate the type of information carried by the PHY data unit. In other words, type instruction information may occupy N bits of the payload field of the PHY data unit, where one value of the N bits is used to indicate the type of information carried by the PHY data unit, and N is a positive integer.

[0123] In some embodiments, the N bits are the first N bits of the payload field of the PHY data unit. In other words, the N bits Petition 870260062297, dated 06 / 25 / 2026, page 30 / 65 21 / 40 are the first N least significant bits (LSB) of the payload field of the PHY data unit.

[0124] In some embodiments, N equals 3. If the payload field of the PHY data unit carries a wireless frame that carries the application information, and if the wireless frame is a MAC frame, the first 3 bits of the MAC frame are the frame type field. Referring to Table 2, the frame type field value 100 is reserved. Therefore, the type instruction information can use the reserved value to indicate that the compressed PSDU is carried by the payload field of the PHY field.For example, if the value of the first 3 bits of the PHY data unit payload field (i.e., the frame type value) is b100, the PHY data unit payload field carries control information; if the value of the first 3 bits of the PHY data unit payload field is not b100, the PHY data unit payload field carries a MAC frame, and the MAC frame type is indicated by the first 3 bits of the PHY data unit payload field. For example, after receiving the PHY data unit, the first communication device can check the first 3 bits of the PHY data unit payload field. If the value of the first 3 bits of the PHY data unit is b001, the first communication device can determine that the PHY data unit payload field carries a data frame and obtain, for example, the NB AP message from the data frame payload field.However, if the value of the first 3 bits of the PHY data unit payload field is b100, the first communication device can determine that the PHY data unit payload field is a compressed PSDU. Since the reserved value of the frame type field is used to indicate that the PHY data unit payload is a compressed PSDU, the reserved value b100 is no longer reserved, and the frame type field can be set as defined in Table 3. Table 3 Frame Type b2 b1 b0 Description 000 Beacon Petition 870260062297, dated 06 / 25 / 2026, p. 31 / 65 22 / 40 001 Data 010 Recognition 011 MAC Command 100 Used for coexistence with compressed PSDU 101 Multipurpose 110 Fragment or Frak 111 Extended

[0125] Figure 9 illustrates compacted PSDUs according to some embodiments of the present application.

[0126] Referring to (a) in Figure 9, when the payload field of the PHY data unit carries the compressed PSDU, the first 8 bits of the PHY data unit payload field are the ID field of the compressed PSDU, and the first 3 bits of the PHY data unit payload field are the first 3 bits of the ID field of the compressed PSDU. Therefore, the remaining bits of the ID field (i.e., bits 3 to 7) can be used to indicate the type of control information carried by the compressed PSDU. The new message ID of the compressed PSDUs and the original 1-octet ID field value are shown in Table 4. Table 4 Compressed PSDU Message ID (b7 b6 b5 b4 b3) Original ID Value (b7 b6 b5 b4 b3 b2 b1 b0) ADV-POLL 0x00 0x04 ADV-RESP 0x01 0x0C SOR 0x02 0x14 ADV-CONF 0x03 0x1C POLL 0x04 0x24 RESP 0x05 0x2C RPRT 0x06 0x34 RPRT 0x07 0x3C PUBLIC-ADV-POLL 0x08 0x44 Petition 870260062297, dated 06 / 25 / 2026, p. 32 / 65 23 / 40 PUBLIC-ADV-RESP 0x09 0x4C PUBLIC-SOR 0x0A 0x54 SECURE-ADV-RESP 0x0B 0x5C SECURE-SOR 0x0C 0x64 SECURE-POLL 0x0D 0x6C SECURE-RESP 0x0E 0x74 SECURE-POLL (One-to-many) 0x0F 0x7C SECURE-REPORT (from initiator) 0x10 0x84 SECURE-REPORT (from responder) 0x11 0x8C Reserved 0x12 - 0x1E 0x94 - 0xF4 Vendor Specific 0x1F 0xFC

[0127] Referring to Table 4, the compressed PSDU ID space is reduced to 5 bits and the number of unique compressed PSDUs is reduced to 32.

[0128] According to the modalities mentioned above, control information is carried by the message content field of the compressed PSDU, and application information is carried by the payload field of the wireless frame. If the value of the first 3 bits of the payload field of the PHY data unit is a dedicated value (i.e., b100, b0 = 0, b1 = 0, b2 = 1)), the payload of the PHY data unit carries the compressed PSDU, and if the value of the first 3 bits of the payload field of the PHY data unit is a pre-established value instead of the dedicated value, the payload of the PHY data unit carries the wireless frame, and the wireless frame is different from the compressed PSDU. For convenience, the dedicated value that is used to indicate that the PHY data unit carries the compressed PSDU is referred to as a first pre-established value.

[0129] Alternatively, the new ID field can still be 8 bits, starting at the 4th bit (b3) of the PHY payload field. That is, the original ID field is extended from 1 octet (8 bits) to 11 bits with the first 3 bits set to the dedicated value of b100. This means that the ID space Petition 870260062297, dated 06 / 25 / 2026, p. 33 / 65 The original 24 / 40 is maintained without changes to the message ID values. This is illustrated in (b) of Figure 9.

[0130] In addition, an example of the content carried in the message content field when the compressed PSDU is an ADV-POLL is also shown in (b) of Figure 9. The message content field of an ADVPOLL can carry length type values ​​of more than one supported message control (SMC-TLVs). Each SMC-TLV indicates the supported message controls for a particular compressed PSDU message indicated by the message ID field. The SMC bitmap length indicates the length of the SMC bitmap field in octet units. Each bit in the SMC bitmap indicates a supported message control ID for that compressed PSDU. For example, in (b) of Figure 9, the message ID can be set to 0x00 (ADV-POLL) and the SMC bitmap length is set to 1, and the bits of the SMC bitmap map to message control IDs 0x20, 0x21, ..., 0x27, each bit set to 1 indicating that the device supports an ADV-POLL message with the mapped message control ID.

[0131] In some embodiments, a payload from one wireless frame may be used to carry application information, and a payload from another wireless frame may be used to carry a compressed PSDU. Type instruction information may be carried by the frame control field of the wireless frame. For convenience, the wireless frame carrying the compressed PSDU may be referred to as a first type of wireless frame, and the wireless frame not carrying the compressed PSDU (e.g., the wireless frame carrying application information) may be referred to as a second type of wireless frame. The wireless frame may be a MAC frame, a legacy 802.15.4 frame, or similar.

[0132] In some embodiments, an extended frame with a dedicated extended frame type can be used to port the compressed PSDU. In other words, the first wireless frame can be an extended frame with a dedicated extended frame type.

[0133] Figure 10 illustrates the extended framework according to some embodiments of the present application. Petition 870260062297, dated 06 / 25 / 2026, p. 34 / 65 25 / 40

[0134] Referring to Figure 10, the extended frame includes a 6-bit frame control field and an extended frame payload field with a variable length. The extended frame's frame control field includes a frame type field and an extended frame type field. Referring to Table 2, for the extended frame shown in Figure 8, the value of the frame type field should be b111. A value of the extended frame type field can be used to indicate that the extended frame's extended frame payload field carries the compressed PSDU. For example, when the value of the extended frame type field is b000, the extended frame's extended frame payload field carries the compressed PSDU.In order to align with the octet boundary, the first two bits of the extended frame payload field (i.e., bits 6 & 7 of the first octet of the PPDU payload field) can be reserved, and the compressed PSDU starts from the third bit of the extended frame payload field. The compressed PSDU can be a private address version or a public address version.

[0135] Table 5 shows a relationship between the value of the extended frame type field and the type of information carried by the extended frame payload field. Table 5 Extended Frame Type b5 b4 b3 Description 000 Compacted PSDU 001 - 011 Reserved 111 Assigned to the telecommunications industry association (TIA)

[0136] For the first communication device, after receiving the PHY data unit from the second communication device, the first communication device can check the first 3 bits of the payload field of the PHY data unit. If the value of the first 3 bits of the payload field of the PHY data unit is b001, the first communication device can determine that the payload field of the PHY data unit carries a data frame and obtain, for example, the NB AP message from the data frame payload field. However, if the value of the first 3 bits of the payload field of the PHY data unit is b111, the Petition 870260062297, dated 06 / 25 / 2026, p. 35 / 65 26 / 40 The first communication device can additionally check bits 3 to 5 of the PHY data unit payload field and determine that the PHY data unit payload field carries the compressed PSDU when the value of bits 3 to 5 is bOOO. Therefore, the N bits corresponding to the type instruction information can be considered as the first N bits of the wireless frame control field. When the wireless frame is the extended frame, the first N bits of the frame control field can be the first 6 bits of the frame control field; or when the wireless frame is not the extended frame, the first N bits of the frame control field can be the first 3 bits of the frame control field.

[0137] In some other embodiments, a multipurpose frame may be used to carry a compressed PSDU. In other words, the first wireless frame may be a multipurpose frame.

[0138] Figure 11 illustrates the multi-purpose framework according to some embodiments of the present application.

[0139] Referring to Figure 11, the multipurpose frame includes a 1-octet frame control field, a 3-bit destination address or RPA_hash field, a 0- or 3-bit source address or RPA_prand field, a frame payload field with a variable length, and a 2-octet FCS field carrying the CRC or a 2 / 4 / 8 / 16-octet MIC field. The frame control field includes a frame type field, a long frame control field, a destination addressing mode field, and a source addressing mode field. Referring to Table 2, for the multipurpose frame, the value of the frame type field must be b101. The addressing mode field is defined in Table 6, where the addressing mode field includes the destination addressing mode field and the source addressing mode field. Table 6 Addressing mode b1 bO Description Petition 870260062297, dated 06 / 25 / 2026, page 36 / 65 27 / 40 00 PAN ID and address fields are not present. 01 Address field contains a 3-octet or prand (24-bit) address. 10 Address field contains a short address (16 bits). 11 Address field contains an extended address (64 bits).

[0140] The destination addressing mode field in the frame control field is set to b01 to indicate that the destination address field in the MAC header (MHR) is present and carries a 3-octet RPA_hash address (for compressed PSDU of private address variant) or a 3-octet destination address (for compressed PSDU of public address variant). Similarly, the source addressing mode field in the frame control field is set to bOO to indicate that the source address field is not present in the MHR or 01 to indicate that the source address field in the MHR is present and carries a 3-octet RPA_prand (for compressed PSDU of private address variant) or a 3-octet source address (for compressed PSDU of public address variant).Since the compressed PSDU uses 3-octet address fields, the value of the destination addressing mode field and the value of the source addressing mode field can be used to indicate whether the multipurpose frame carries the compressed PSDU. For example, when the value of the destination addressing mode field is b01 or when the value of the source addressing mode field is b01, the multipurpose frame carries the compressed PSDU. In other words, if at least one of the values ​​of the destination addressing mode field or the values ​​of the source addressing mode field is b01, the multipurpose frame carries the compressed PSDU. The frame payload of the multipurpose frame can be used to carry the ID field, the field of. Petition 870260062297, dated 06 / 25 / 2026, page 37 / 65 28 / 40 message control and the compressed PSDU message content field, and the FCS field of the multipurpose frame can be used to carry the CRC of the compressed PSDU. The compressed PSDU message content field can carry the control information. When the compressed PSDU is a secure compressed PSDU (for example, the compressed PSDU ID field indicates that the compressed PSDU carries a secure frame (for example, a SECUR-ADV-POLL frame, a SECURE-SOR frame, or similar)), the FCS field can be used to carry a message integrity code (MIC) of the compressed PSDU instead of the CRC.Additionally, the destination address field of the multipurpose frame carries the RPA_hash in the RPA_hash field of the compressed PSDU in a private address variant or the destination address in the destination address field of the compressed PSDU in a public address variant, and the source address field of the multipurpose frame carries the RPA_prand in the RPA_prand field of the compressed PSDU in the private address variant or the source address in the source address field of the compressed PSDU in the public address variant.

[0141] For the first communication device, after receiving the PHY data unit from the second communication device, the first communication device can check the first 3 bits of the payload field of the PHY data unit. If the value of the first 3 bits of the payload field of the PHY data unit is b001, the first communication device can determine that the payload field of the PHY data unit carries a data frame and obtain, for example, the NB AP message from the data frame payload field.However, if the value of the first 3 bits of the PHY data unit payload field is b101, the first communication device can additionally check the destination addressing mode field and / or the source addressing mode field and determine that the PHY data unit payload field carries the compressed PSDU when the value of the destination addressing mode field and / or the source addressing mode field is b01. Therefore, the N bits corresponding to the instruction type information can be considered as N bits of the wireless frame's frame control field. When the wireless frame is a multi-purpose frame, the N bits of... Petition 870260062297, dated 06 / 25 / 2026, page 38 / 65 29 / 40 frame control field may include the first 3 bits of the frame control field and bits 4 to 7 of the frame control field; or when the wireless frame is not a multi-purpose frame, the N bits of the frame control field may be the first 3 bits of the frame control field.

[0142] In some embodiments, a compressed PSDU can be used to carry application information. The value of an ID field in a compressed PSDU that carries application information is different from the value of an ID field in other compressed PSDUs. For convenience, the compressed PSDU that does not carry application information can be referred to as a first compressed PSDU, while the compressed PSDU that carries application information can be referred to as a second compressed PSDU. In some embodiments, the first compressed PSDU can be used to carry control information.

[0143] The ID field value of the first compressed PSDU can be a non-reserved value in Table 1. In other words, the ID field value of the first compressed PSDU can be any of the ID values ​​excluding reserved values. Correspondingly, a unique ID field value is assigned to the second compressed PSDU. For example, the ID field value of the second compressed PSDU can be 0x50 or 0x00, etc.

[0144] Figure 12 illustrates the second compressed PSDU according to some embodiments of the present application.

[0145] Referring to Figure 12, the second compressed PSDU includes: a 1-octet ID field, a 3-octet transmitter address field, an optional prand field, a 1-octet message control field, a variable-length message content field, and a 2-octet CRC field.

[0146] The ID field of the second compressed PSDU is set to a pre-established value (e.g., 0x50) to represent that the second compressed PSDU is configured to carry application information.

[0147] In some embodiments, the transmitter address field may be a randomly generated 3-octet address representing a transmitting device or a private address that Petition 870260062297, dated 06 / 25 / 2026, page 39 / 65 30 / 40 represents a transmitter. In some applications, a randomly generated address is expected to be used, but in some scenarios where NB AP messages are targeted (i.e., when they are expected to be decoded by devices on the same network), or where all nearby devices possess a common Identity Resolution Key (IRK), a private address may be used.

[0148] In some modes, the optional prand field may be present only in the first frame that carries a new private address. The private address is used only in targeted NB AP messages, where targeted NB AP messages are transmitted to a particular device or network.

[0149] In some embodiments, the message control field of the second compressed PSDU can be used to indicate the type of NB data carried in the message content field of the second compressed PSDU. For example, if the value of the message control field of the second PSDDU is b0, the message content field of the second compressed PSDU can carry an NB AP message; or if the value of the message control field of the second PSDDU is b1, the message content field of the second compressed PSDU can carry NB data traffic.

[0150] The message content field of the second compressed PSDU can be used to carry application information. For example, the message content field of the second compressed PSDU can carry the NB AP message, NB data traffic, or similar.

[0151] Figure 12 also shows the NB AP message ported in the message content field of the second compressed PSDU. Referring to Figure 12, the NB AP message includes an 8-octet common info field, an 8-octet UWB AP info field, and a per-session UWB info field, wherein the 8-octet common info field includes a 0-2 bit NB AP type field, a 5-bit reserved field, a 1-bit UWB AP present field, a 3-bit per-session UWB type info field, a 4-bit reserved field, and a 16-bit next NB AP field.

[0152] In some modes, the ID field of the second compacted PSDU is set to a different pre-set value (by Petition 870260062297, dated 06 / 25 / 2026, p. 40 / 65 31 / 40 example, 0x00) to represent that the second compressed PSDU is configured to carry a wireless frame that carries the application information. In this case, the compressed PSDU can only include the ID field and the payload field, the payload field is configured to carry the wireless frame, and the wireless frame carries the application information.For the first communication device, after receiving the PHY data unit from the second communication device, the first communication device can check the first octet of the payload field of the PHY data unit. If the value of the first octet of the payload field of the PHY data unit is 0x00, the first communication device can determine that the payload field of the PHY data unit carries a compressed PSDU, and the payload field of the compressed PSDU carries a wireless frame that carries the application information; and if it is a value other than 0x00, the first communication device can determine that the payload field of the PHY data unit carries a compressed PSDU that does not carry the application information.

[0153] According to the modalities mentioned above, the compressed PSDU that does not carry the application information is the first compressed PSDU, while the application information is carried by the second compressed PSDU. The first compressed PSDU and the second compressed PSDU can be distinguished based on the values ​​of their ID fields. For convenience, the pre-established value that is used to indicate that the compressed PSDU carries the application information can be referred to as a second pre-established value. Therefore, when a value of an ID field of a compressed PSDU is the second pre-established value, the compressed PSDU is used to carry the application information; or when a value of an ID field of a compressed PSDU is different from the second pre-established value, the compressed PSDU is not used to carry the application information.In other words, the ID field value of the second compressed PSDU is the second preset value, while the ID field value of the first compressed PSDU is different from the second preset value.

[0154] In some embodiments, the instruction type information may be carried by a PHY header field of the data unit. Petition 870260062297, dated 06 / 25 / 2026, page 41 / 65 32 / 40 of PHY. The PHY header includes 8 bits, and the first 7 bits of the PHY header are a frame length field, and the last bit of the PHY header is a reserved bit. The last bit of the PHY header can be used as the instruction type information. For example, if the value of the last bit is 1, the PHY data unit payload can carry a compressed PSDU; and if the value of the last bit is 0, the PHY data unit payload can carry a wireless frame that is different from the compressed PSDU (e.g., a data frame). This is illustrated in Figure 13.

[0155] The NB AP message can be carried within the data frame payload. However, when an NB radio is also expected to receive other application information (e.g., a ZigBee message, a 6LoWPAN message, or 802.15.4ab NB data applications such as payment gateways), a modulation method of a PHY data unit carrying the application information may be the same as a modulation method of the PHY data unit carrying the data frame carrying the NB AP message. As a result, the receiver is unable to distinguish PHY data units carrying different application information based on a modulation scheme, PHY data unit format, or the MAC frame carried by the PHY data unit. To address this problem, the data frame can include application type indication information.Application type indication information is configured to indicate a type of application information carried by the wireless frame. The application information type can be a ZigBee message, a 6LoWPAN message, or an NB UWB message. Therefore, the receiver is able to distinguish data units carrying different application information according to the application type indication information. Additionally, the wireless frame may include application subtype indication information, and application subtype indication information indicates a subtype of application information carried by the wireless frame. For example, when the application information type is an NB UWB message, the NB UWB message subtype can be an NB AP message or an NB data packet.Therefore, when the application type indication information indicates that the wireless frame carries the NB UWB message, the application subtype indication information indicates that... Petition 870260062297, dated 06 / 25 / 2026, page 42 / 65 33 / 40 NB UWB message is the NB AP message or the NB data packet. Figure 14 illustrates the application type field and the application subtype field mentioned above.

[0156] Examples of the data frame that holds data of various application types and subtypes are illustrated in Figure 15.

[0157] An NB radio can be used to assist in the clear channel assessment (CCA) of UWB channels. As mentioned above, due to the nature of UWB transmissions (wide bandwidth and low transmission power), it is relatively more difficult to detect a UWB signal blindly (compared to an NB signal). As such, in order to avoid accidental interference on UWB channels, an NB channel can be tightly coupled to a UWB channel, and any transmission on the UWB channel can be indicated using the NB channel by transmitting an NB signal on the coupled NB channel at the same time as the transmission on the UWB channel. Before initiating any transmission on a UWB channel, a claim device must first perform a CCA on the coupled NB channel. If the CCA result indicates a BUSY status (i.e., if the CCA detects an NB transmission on the NB channel), the device is not allowed to transmit on the UWB channel.Only if the CCA result indicates an IDLE status can the device transmit on the UWB channel.

[0158] Since the purpose of transmission on the coupled NB channel is only to signal the BUSY status of the coupled UWB channel, a PHY data unit transmitted on the coupled NB channel does not need to carry any payload. As such, a PHY data unit without any payload (i.e., the frame length field in the PHR is equal to 0) can be used, as shown in Figure 16. For convenience, the PHY data unit carrying the control information or application information can be referred to as a first PHY data unit, and the PHY data unit without any payload (i.e., the frame length field in the PHY header (PHR) is equal to 0) can be referred to as a second PHY data unit, or an NB CCA PPDU.In addition to a frame length field in a PHR field of the second PHY data unit, the PHR field of the second PHY data unit also includes a reserved bit, and the reserved bit in the PHR field of the second PHY data unit can be used to indicate the start or end. Petition 870260062297, dated 06 / 25 / 2026, page 43 / 65 34 / 40 of a transmission on the coupled UWB channel as shown in Figure 17. When the frame length field in the PHR field of the second PHY data unit is set to 0, the reserved bit can be referred to as an initial transmission field and is set to b1 to signal the start of UWB transmission on the coupled UWB channel and is set to b0 to signal the end of UWB transmission on the coupled UWB channel.

[0159] Figure 17 illustrates a relationship between the second PHY data unit and UWB transmission.

[0160] Referring to Figure 17, if the UWB transmission in the coupled UWB channel is shorter than twice the transmission duration of the second PHY data unit, then a single second PHY data unit with the initial transmission field set to b0 (end) is transmitted in the NB channel at the same time as the initial time of the UWB transmission. If the UWB transmission in the coupled UWB channel is equal to or longer than twice the transmission duration of the second PHY data unit, then a second PHY data unit with the initial transmission field set to b1 (start) is transmitted in the NB channel at the same time as the initial time of the UWB transmission, and a second PHY data unit with the initial transmission field set to b0 (end) is transmitted in the NB channel so that the end time of the second PHY data unit coincides with the end time of the UWB transmission.

[0161] Figure 18 is a schematic block diagram of a communication apparatus according to some embodiments of the present application. As shown in Figure 18, the computing device 1800 includes: a communication unit 1801 and a processing unit 1802.

[0162] Communication unit 1801 is configured to receive a first PPDU, wherein the first PPDU includes type instruction information, wherein the type instruction information is configured to indicate whether the first PPDU carries a compressed PPDU.

[0163] Processing unit 1802 is configured to process information carried by the received PPDU. Petition 870260062297, dated 06 / 25 / 2026, page 44 / 65 35 / 40

[0164] It should be understood that the communication apparatus 1800, in this embodiment of this application, may correspond to the first communication apparatus in the embodiments mentioned above, and the preceding operations and / or management functions as well as other units in the first communication apparatus are used separately to implement corresponding steps of the preceding methods. For the sake of brevity, the details are not described again in the present invention.

[0165] Figure 19 is a schematic block diagram of a communication device 1900 according to some embodiments of the present application. As shown in Figure 19, the computing device 1900 includes: a communication unit 1901 and a processing unit 1902.

[0166] Processing unit 1902 is configured to generate a first PPDU.

[0167] Communication unit 1901 is configured to transmit the first PPDU, wherein the first PPDU includes type instruction information, wherein the type instruction information is configured to indicate whether the first PPDU carries a compressed PPDU.

[0168] It should be understood that the communication apparatus 1900, in this embodiment of this application, may correspond to the second communication apparatus in the embodiments mentioned above, and the preceding operations and / or management functions as well as other units in the second communication apparatus are used separately to implement corresponding steps of the preceding methods. For the sake of brevity, the details are not described again in the present invention.

[0169] As shown in Figure 20, a communication device 2000 may include a transceiver 2001, a processor 2002, and a memory 2003. The memory 2003 may be configured to store code, instructions, and the like executed by the processor 2002.

[0170] It should be understood that the 2002 processor may be an integrated circuit chip and has a signal processing capability. In an implementation process, the steps of the preceding method modalities may be completed using a hardware integrated logic circuit in the processor, or using instructions in a software form. Petition 870260062297, dated 06 / 25 / 2026, page 45 / 65 36 / 40 The processor may be a general-purpose processor, a central processing unit (CPU), a graphics processing unit (GPU), a neural processing unit (NPU), a system-on-a-chip (SoC) or other programmable logic device, a discrete transistor or gate logic device, or a discrete hardware component. The processor may implement or perform the methods, steps, and logic block diagrams that are disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor, or the processor may be any conventional or similar processor. The steps of the methods disclosed with reference to the embodiments of this application may be directly performed and completed by a hardware decoding processor, or may be performed and completed using a combination of hardware in the decoding processor and a software module.The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, read-only programmable memory, electrically erasable programmable memory, or a register. The storage medium is located in memory, and the processor reads information from memory and completes the steps of the preceding methods in combination with hardware in the processor.

[0171] It can be understood that the memory 2003 in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Programmable Memory (EPROM), an Electrically Erasable Read-Only Programmable Memory (EEPROM), or a flash memory. Volatile memory may be Random Access Memory (RAM), and is used as an external cache. By way of example and not limitation, many forms of RAM can be used, for example, static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), and so on. Petition 870260062297, dated 06 / 25 / 2026, page 46 / 65 37 / 40 Double Data Rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM).

[0172] In some embodiments, communication device 2000 may be the first communication device mentioned in the embodiments of this application, and memory 2003 stores the instructions when the instructions are executed by processor 2002, communication device 2000 is enabled to perform the preceding methods performed by the first communication device.

[0173] In some other embodiments, communication device 2000 may be the second communication device mentioned in the embodiments of this application, and memory 2003 stores the instructions when the instructions are executed by processor 2002, communication device 2000 is enabled to perform the preceding methods performed by the second communication device.

[0174] It should be noted that the memory described in this descriptive report includes, but is not limited to, these memories and a memory of any other appropriate type.

[0175] One embodiment of this application further provides a system chip, wherein the system chip includes an input / output interface, at least one processor, at least one memory, and a bus. The at least one memory is configured to store instructions, and the at least one processor is configured to invoke instructions from the at least one memory and execute the instructions, such that a communication apparatus in which the chip is disposed performs methods in the preceding embodiments.

[0176] In some embodiments, the communication device in which the chip is placed is the first communication device, and at least one memory is configured to store instructions for performing operations in the methods performed by the first communication device.

[0177] In some other forms, the communication device in which the chip is placed is the second communication device, and at least Petition 870260062297, dated 06 / 25 / 2026, page 47 / 65 38 / 40 a memory is configured to store instructions for performing operations in the methods performed by the second communication device.

[0178] One embodiment of this application additionally provides a computer storage medium, wherein the computer storage medium can store instructions. When the instructions are executed on a computer, the computer is enabled to perform the preceding methods.

[0179] In some forms, instructions stored in the computer storage medium are used to perform operations in the methods performed by the first communication device.

[0180] In some other modes, instructions stored in the computer storage medium are used to perform operations in the methods performed by the second communication device.

[0181] Optionally, the storage medium can be, specifically, memory 2003.

[0182] A person skilled in the art may be aware that, in combination with the examples described in the embodiments disclosed in this descriptive report, algorithm units and steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on particular applications and design constraints of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each particular application, but the implementation should not be considered to extend beyond the scope of this application.

[0183] It may be clearly understood by a person skilled in the art that, for the purpose of convenient and brief description, for a detailed operating process of the preceding system, apparatus and unit, consult a corresponding process in the embodiment of the preceding method. The details are not described again in the present invention.

[0184] In the various embodiments provided in this application, it should be understood that the system, apparatus, and method disclosed may be implemented in other ways. For example, the embodiment of the apparatus described is only one example. For example, unit division is only logical function division and may be another division in actual implementation. For example, a plurality Petition 870260062297, dated 06 / 25 / 2026, page 48 / 65 39 / 40 of units or components can be combined or integrated into another system, or some attributes may be ignored or not implemented. Furthermore, the mutual couplings or direct couplings or communication connections shown or discussed can be implemented through some interfaces. Indirect couplings or communication connections between devices or units can be implemented electronically, mechanically, or in other ways.

[0185] The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed across a plurality of network units. Some or all of the units may be selected based on actual requirements to achieve the objectives of the modal solutions.

[0186] In addition, the functional units, in the modalities of this application, may be integrated into a processing unit, or each of the units may exist physically on its own, or two or more units may be integrated into a unit.

[0187] When functions are implemented in the form of a functional unit of software and marketed or used as a standalone product, the functions may be stored on a computer-readable storage medium. Based on such understanding, the technical solutions in this application essentially, or the part contributing to the prior art, or some of the technical solutions may be implemented in the form of a software product. The computer software product is stored on a storage medium, and includes various instructions to instruct a computer device (which may be a personal computer, a server, a network device or similar) to perform all or some of the steps of the methods described in the embodiments of this application.The preceding storage medium includes: any medium that can store program code, such as a USB flash drive, a removable hard disk, read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk. Petition 870260062297, dated 06 / 25 / 2026, page 49 / 65 40 / 40

[0188] The preceding descriptions are only specific implementations of this application and are not intended to limit the scope of protection of this application. Any variation or substitution readily ascertained by a person skilled in the art within the technical scope disclosed in this application shall be included in the scope of protection of this application. Therefore, the scope of protection of this application shall be subject to the scope of protection of the claims. Petition 870260062297, dated 06 / 25 / 2026, pages 50 / 65

Claims

1 / 3 CLAIMS 1. A communication method, CHARACTERIZED in that it comprises: receiving a Physical Layer Protocol (PHY) Data Unit (PPDU), wherein the PPDU comprises type instruction information, wherein the type instruction information is configured to indicate whether the PPDU carries a compressed PHY Service Data Unit (PSDU); and processing the information carried by the received PPDU.

2. Method according to claim 1, CHARACTERIZED in that the type instruction information is carried by a payload field of the PPDU.

3. Method, according to claim 2, CHARACTERIZED in that the instruction type information occupies N bits within the PPDU payload, N being a positive integer, wherein when a value of the N bits of the PPDU payload field is a first pre-established value, the PPDU carries the compressed PSDU; or when a value of the N bits of the PPDU payload field is different from the first pre-established value, the PPDU carries a first wireless frame, wherein the first wireless frame is different from the compressed PSDU.

4. Method, according to claim 3, CHARACTERIZED in that the N bits of the payload field of the PPDU are the first 3 bits of the compressed PSDU, and bits 3 to 7 or bits 3 to 10 are configured to indicate a type of information carried by the compressed PSDU; or the N bits of the payload field of the PPDU are 3 bits of a frame type field of the first wireless frame.

5. Method, according to claim 3 or 4, CHARACTERIZED in that the first pre-established value is 100.

6. Method according to claim 3, CHARACTERIZED in that when the N-bit value of the PPDU payload field is the first pre-established value, the compressed PPDU is carried by a second wireless frame, and the second wireless frame is carried by the PPDU payload, wherein one type of the second wireless frame is different from one type of the first wireless frame. Petition 870260062297, dated 06 / 25 / 2026, pp. 51 / 65 2 / 3 7. Method according to claim 6, CHARACTERIZED in that the N bits comprise 3 bits of a frame type field of the second wireless frame and 3 bits of an extended frame type field of the second wireless frame, wherein the 3 bits of the frame type field indicate that the type of the second wireless frame is an extended frame, and the 3 bits of the extended frame type field indicate that the payload field of the extended frame carries the compressed PSDU.

8. Method according to claim 6, CHARACTERIZED in that the N bits comprise 3 bits of a frame type field of a frame control field of the second wireless frame, and the 3 bits of the frame type field indicate that the type of the second wireless frame is a multi-purpose frame, and the N bits further comprise 2 bits of a destination addressing mode field and 2 bits of a source addressing mode field of the frame control field of the second wireless frame, wherein the 2 bits of the destination addressing mode field indicate that the length of a destination address is 3 octets, or, the 2 bits of the source addressing mode field indicate that the length of a source address is 3 octets.

9. Method, according to any one of claims 1 to 8, CHARACTERIZED in that the PPDU comprises a message control field, and the message control field comprises a common info field, UWB AP info field and UWB Per Session Info field.

10. Method, according to claim 9, CHARACTERIZED in that the common info field comprises an NB AP Type field, a Present UWB AP field, a Per Session UWB Info field and an Next NB AP field.

11. Communication apparatus, CHARACTERIZED in that it comprises units for carrying out the method as defined in any one of claims 1 to 10.

12. Communication apparatus, CHARACTERIZED in that it comprises: a memory, configured to store instructions; and Petition 870260062297, dated 06 / 25 / 2026, page 52 / 65 3 / 3 a processor, configured to execute the instructions stored in the memory, wherein the processor executes the instructions stored in the memory, so that the communication apparatus is enabled to perform the method as defined in any of claims 1 to 10.

13. Chip system, CHARACTERIZED in that it comprises: a memory and a processor, wherein the memory is configured to store a set of instructions, and the processor is configured to invoke the set of instructions from the memory and execute the set of instructions, such that a communication apparatus in which the chip is disposed performs the method as defined in any one of claims 1 to 10.

14. Computer-readable storage medium, CHARACTERIZED in that the computer-readable storage medium stores a set of instructions, and when the set of instructions is executed by a computer, the computer is enabled to implement the method as defined in any one of claims 1 to 10. Petition 870260062297, dated 06 / 25 / 2026, pp. 53 / 65

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