Wireless communication methods and communication devices

Abstract

Provided are wireless communication methods and communication devices. A method comprises: a first device receives a first frame sent by a second device, wherein transmission and / or reception of the first frame meet the requirements of a first capability mode of the first device, the first device is capable of using the first capability mode to monitor and / or receive in a wake-up state, and the first capability corresponding to the first capability mode is lower than the capability of the first device. When the first device performs an operation on the basis of the capability of the first device, the first device is in a full-power state. In the present application, the first capability is a lower capability, such that performing an operation on the basis of the first capability mode can reduce power consumption during an operation execution process, thus achieving the effect of reducing energy consumption of the first device.

Description

Wireless communication method and communication device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method and a communication device. Background Art

[0002] Some communication standards or specifications (such as the Institute of Electrical and Electronics Engineers (IEEE) 802.11 specification) define technical solutions to achieve energy conservation in communication devices. For example, in the power management technical solution, when the communication device is in the awake state, the communication device can receive and send frames at any time; when the communication device is in the unavailable state or idle state, the communication device does not receive and / or send certain signals. Therefore, when the communication device is in the non-awake state, the power consumption of the communication device is extremely low, thereby reducing the overall power consumption of the communication device.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method and a communication device. The following introduces various aspects involved in the present application.

[0005] In a first aspect, a wireless communication method is provided. The method includes: a first device receiving a first frame sent by a second device; wherein the transmission and / or reception of the first frame meets the requirements of a first capability mode of the first device, the first device can use the first capability mode to monitor and / or receive when awake, and a first capability corresponding to the first capability mode is lower than a capability of the first device.

[0006] In a second aspect, a wireless communication method is provided, which includes: a second device sends a first frame to a first device; wherein, the transmission and / or reception of the first frame meets the requirements of a first capability mode of the first device, the first device can use the first capability mode to monitor and / or receive in an awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

[0007] According to a third aspect, a communication device is provided, which is a first device and includes: a receiving unit for receiving a first frame sent by a second device; wherein the transmission and / or reception of the first frame meets the requirements of a first capability mode of the first device, and the first device can use the first capability mode for monitoring and / or receiving in an awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

[0008] In a fourth aspect, a communication device is provided, which is a second device and includes: a sending unit for sending a first frame to a first device; wherein the transmission and / or reception of the first frame meets the requirements of the first capability mode of the first device, and the first device can use the first capability mode to monitor and / or receive in an awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

[0009] In a fifth aspect, a communication device is provided, comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory to enable the communication device to perform some or all of the steps in the above-mentioned various aspects of the method.

[0010] In a sixth aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned communication device. In another possible design, the system may also include other devices that interact with the communication device in the solution provided in the embodiment of the present application.

[0011] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and the computer program enables a communication device to execute part or all of the steps in the methods of the above aspects.

[0012] In an eighth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a communication device to perform some or all of the steps of the methods described in each of the above aspects. In some implementations, the computer program product may be a software installation package.

[0013] In a ninth aspect, an embodiment of the present application provides a chip comprising a memory and a processor, wherein the processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0014] When the first device performs an operation based on the capability of the first device, the first device is in a fully powered state. In the present application, the first capability is a lower capability, so performing the operation based on the first capability mode can reduce power consumption, thereby achieving the effect of reducing energy consumption of the first device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic diagram of a wireless communication system used in an embodiment of the present application.

[0016] FIG2 is a schematic flowchart of a wireless communication method provided in an embodiment of the present application.

[0017] FIG3 is a schematic diagram of the format of a common information field (common Info field) of a multi user-request to send (MU-RTS) trigger frame provided in an embodiment of the present application.

[0018] FIG4 is a schematic flowchart of a wireless communication method provided in the present application.

[0019] FIG5 is a schematic diagram of the format of a capability adaptation energy-saving control field provided in an embodiment of the present application.

[0020] FIG6 is a schematic diagram of the format of the capability adaptation energy-saving delay parameter field provided in an embodiment of the present application.

[0021] FIG7A is a schematic diagram of the format of the low-capability operation parameter field provided in an embodiment of the present application.

[0022] FIG7B is a schematic diagram of the format of the high-capability operation parameter field provided in an embodiment of the present application.

[0023] Figure 8 is a format diagram of a modulation and coding scheme (MCS) and spatial stream (SS) parameter set field supported by a low-capability mode or an MCS and SS parameter set field supported by a high-capability mode provided in an embodiment of the present application.

[0024] Figure 9 is an example diagram of an MCS mapping field format provided in an embodiment of the present application.

[0025] FIG10 is an example diagram of a wireless communication process provided in Example 1.

[0026] FIG11 is an example diagram of a wireless communication process provided in Example 2.

[0027] FIG12 is an example diagram of a wireless communication process provided in Example 3.

[0028] FIG13 is an example diagram of another wireless communication process provided in Example 3.

[0029] FIG14 is a schematic structural diagram of a communication device provided in an embodiment of the present application.

[0030] FIG15 is a schematic structural diagram of a communication device provided in an embodiment of the present application.

[0031] FIG16 is a schematic structural diagram of a device for communication provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The technical solution in this application will be described below with reference to the accompanying drawings.

[0033] Communication System

[0034] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless local area networks (WLAN), wireless fidelity (WiFi), high performance radio local area networks (HIPELAN), wide area networks (WAN), cellular networks, or other communication systems. For another example, the technical solutions provided in the embodiments of the present application can be applied to communication systems that adopt the 802.11 standard. For example, the 802.11 standard includes but is not limited to the 802.11ax standard, the 802.11be standard, and the next generation 802.11 standard.

[0035] FIG1 is a schematic diagram of a communication system applicable to embodiments of the present application. Referring to FIG1 , the communication devices in the communication system 100 may include access points (APs) 111 and 112, and stations (STAs) 121 and 122. STA 121 may access the network through AP 111, and STA 122 may access the network through AP 112.

[0036] In some implementations, a STA may establish an association with one or more APs, after which the associated STAs and APs may communicate. For example, as shown in FIG1 , AP 111 and STA 121 may communicate after establishing an association, and AP 112 and STA 122 may communicate after establishing an association.

[0037] In some implementations, the communication in the communication system 100 may be communication between an AP and a non-AP STA, communication between a non-AP STA and a non-AP STA, or communication between a STA and a peer STA, where a peer STA may refer to a device that communicates with the STA peer, for example, the peer STA may be an AP or a non-AP STA.

[0038] It should be understood that FIG1 exemplarily shows two AP STAs and two non-AP STAs, and the communication system 100 may also include a larger number of AP STAs, or the communication system 100 may include other numbers of non-AP STAs, which is not limited in the embodiments of the present application.

[0039] In addition, the above communication system can be applied to scenarios of multi-device collaboration, such as multi-AP (multiple access points, multi-AP) collaboration, or multi-site collaboration.

[0040] In the embodiments of this application, the names of AP and / or STA are not limited. In some scenarios, AP can also be called AP STA, that is, in a sense, AP is also a type of STA. In other scenarios, STA can also be called non-AP STA.

[0041] In some scenarios, the aforementioned communication device may also be a "multi-link device (MLD)," i.e., a device that can communicate via multiple communication links, where the multiple communication links may include communication links in different frequency bands, such as millimeter wave bands and / or low-frequency bands. Generally, if the multi-link device is an AP, the AP may also be referred to as a "multi-link AP." If the multi-link device is a STA, the STA may also be referred to as a "multi-link STA."

[0042] In the embodiment of the present application, the AP can be a device in a wireless network. The AP can be a communication entity such as a communication server, a router, a switch, a bridge, or the AP can include various forms of macro base stations, micro base stations, relay stations, etc. Of course, the AP can also be a chip or circuit or processing system in these various forms of devices, thereby realizing the method and function of the embodiment of the present application. The AP can be applied to a variety of scenarios, such as sensor nodes in smart cities (such as smart water meters, smart electricity meters, smart air detection nodes), smart devices in smart homes (such as smart cameras, projectors, displays, TVs, speakers, refrigerators, washing machines, etc.), nodes in the Internet of Things, entertainment terminals (such as wearable devices such as AR and VR), smart devices in smart offices (such as printers, projectors, etc.), Internet of Vehicles devices in the Internet of Vehicles, and some infrastructure in daily life scenarios (such as vending machines, self-service navigation counters in supermarkets, self-service checkout devices, self-service ordering machines), etc.

[0043] In some implementations, the role of a STA in a communication system is not absolute; in some scenarios, a STA can function as an AP. For example, when a mobile phone is connected to a router, it can be a non-AP STA, while when it is acting as a hotspot for other phones, it functions as an AP.

[0044] In the embodiments of the present application, a STA in the embodiments of the present application may be a device with wireless transceiver capabilities, such as a device that supports the 802.11 series of protocols and can communicate with an AP or other STAs. For example, a STA is any user communication device that allows a user to communicate with an AP and, in turn, with a WLAN. Examples of STAs include user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.

[0045] The STA in the embodiment of the present application may also be a device that provides voice / data connectivity to users, such as a handheld device or vehicle-mounted device with wireless connection function. Examples include: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or future-evolved public land mobile communication networks. The terminal equipment in the network (PLMN), etc., is not limited to this in the embodiments of the present application.

[0046] By way of example and not limitation, in the embodiments of this application, the STA may also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for wearable devices that utilize wearable technology to intelligently design and develop wearable devices for everyday wear, such as glasses, gloves, watches, clothing, and shoes. Examples include smart watches or smart glasses, as well as devices that focus on a specific application function and require integration with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0047] In addition, in the embodiments of the present application, a STA can also be a terminal device in the Internet of Things (IoT) system. The IoT is an important component of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network that interconnects people and machines and things. In the embodiments of the present application, IoT technology can achieve massive connections, deep coverage, and terminal power saving through narrowband (NB) technology, for example.

[0048] Furthermore, in the embodiments of the present application, a STA may be a device in a connected vehicle system. The communication methods in a connected vehicle system are collectively referred to as V2X (where X represents everything). For example, V2X communication includes vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.

[0049] In addition, in the embodiment of the present application, STA may also include sensors such as smart printers, train detectors, gas stations, etc., whose main functions include collecting data (part of the terminal equipment), receiving AP control information and downlink data, and sending electromagnetic waves to transmit data to the AP.

[0050] In addition, the AP in the embodiment of the present application may be a device for communicating with a STA. The AP may be a network device in a wireless local area network. The AP may be used to communicate with the STA through the wireless local area network.

[0051] From the perspective of the communication standards supported by the AP, in some implementations, the AP can be a device that supports the 802.11be standard. The AP can also be a device that supports various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0052] From the perspective of STA-supported communication standards, in some implementations, non-AP STAs can support the 802.11be standard. Non-AP STAs can also support various current and future 802.11 family wireless local area network (WLAN) standards, including 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0053] In the embodiments of the present application, there is no limitation on the frequency bands supported by WLAN technology. In some implementations, the frequency bands supported by WLAN technology may include, but are not limited to, low frequency bands (e.g., 2.4 GHz, 5 GHz, 6 GHz) and high frequency bands (e.g., 45 GHz, 60 GHz).

[0054] It should be understood that the specific forms of STA and AP in the embodiments of the present application are not particularly limited and are merely illustrative.

[0055] Power Management

[0056] Some communication standards or specifications (such as the IEEE 802.11 specification) define power management for non-AP STAs.

[0057] The power management modes that a STA can adopt include active mode and power save (PS) mode, which are described below.

[0058] For active mode, when the STA is awake, the STA can receive and send frames at any time. When the STA is unavailable, the STA cannot receive physical layer protocol data units (PPDUs). For example, a non-HE STA can remain awake. A HE STA can remain awake unless the STA is unavailable. In specific scenarios described by opportunistic power save, intra-PPDU power save, and target wake time (TWT) information frame exchange for flexible wake time, the STA is allowed to be in the unavailable state.

[0059] In PS mode, a STA can enter the awake state to receive or transmit frames. Alternatively, the STA can remain in the doze state. In the awake state, the STA is fully powered and in full power. In the doze state, the STA does not transmit or receive non-wake-up radio PPDUs (non-WUR PPDUs). When the STA is in the doze state, the STA's power consumption is extremely low.

[0060] Spatial multiplexing (SM) power saving

[0061] In the related art, STAs consume power on all active receive chains, even if they do not necessarily need all active receive chains for actual frame exchange. To address this issue, the SM power saving feature allows non-AP STAs to use only one active receive chain most of the time.

[0062] The STA controls which receive chains are active through the PHY-RXCONFIG.request primitive, which defines the PHYCONFIG_VECTOR parameter ACTIVE_RXCHAIN_SET to indicate which receive chain of the STA should be active.

[0063] The SM energy saving mode (or SM operation mode) may include a dynamic SM energy saving mode and a static SM energy saving mode. The following description is made by taking a non-AP STA including a high throughput (HT) STA as an example.

[0064] In dynamic SM power saving mode, an HT STA activates multiple receive chains upon receiving the start of a frame exchange sequence addressed to it. An enhanced directional multi-gigabit (EDMG) STA activates multiple receive chains only when a received frame indicates that subsequent transmission requires activation of multiple receive chains. Such a frame exchange sequence should begin with a single spatial stream individually addressed frame, which is not a trigger frame but requires an immediate response and is addressed to the STA in dynamic SM power saving mode. For HT STAs, the request to send (RTS) / clear to send (CTS) sequence can be used for this purpose. For EDMG STAs in dynamic SM power saving mode, the grant / grant acknowledgment (Grant Ack) sequence is required. Depending on its spatial stream capabilities and operating mode, the STA should be able to receive PPDUs transmitted using multiple spatial streams after a short interframe space (SIFS) has elapsed since the end of the PPDU it sent as an immediate response. After the frame exchange sequence ends, the STA may immediately switch back to single receive chain mode.

[0065] In static SM power-saving mode, the STA maintains only one active receive chain.

[0066] STA can use SM power saving frame to communicate its SM power saving state. The SM power saving subfield in the HT capabilities element (HT capabilities element) or EDMG capabilities element (EDMG capabilities element) of the STA's association request frame (or reassociation request frame), or the SM power saving subfield in the HE 6GHz bandwidth capabilities element (HE 6GHz band capabilities element) of the STA's association request frame (or reassociation request frame) can also achieve the purpose of STA communicating SM power saving state. The SM power saving frame can carry the SM power control field (SM power control field). The SM power saving enabled subfield contained in the SM power control field can indicate whether the STA has turned on the SM power saving function. The SM mode (SM Mode) subfield contained in the SM power control field can indicate the SM power saving mode. That is, the SM mode can indicate whether the STA uses the dynamic SM power saving mode or the static SM power saving mode. The scheme using the association request frame (or reassociation request frame) allows the STA to use a single receive chain immediately after association (or reassociation). For example, the SM energy saving subfield of the HT capability element or HE 6 GHz bandwidth capability element carried by the association request frame (or reassociation request frame) may indicate the SM energy saving mode to be run immediately after association (or reassociation).

[0067] It should be noted that the number of active receive chains will only be changed after the SM Energy Saving Mode indication is successfully transmitted (i.e., by acknowledging a frame carrying the HT Capability element or the EDMG Capability element, or by acknowledging a frame carrying the HE 6 GHz Band Capability element, or by acknowledging an SM Energy Saving Mode frame). The SM Energy Saving Mode indication shall be transmitted using a separately addressed frame.

[0068] A HE non-AP STA in dynamic SM power saving mode, if supporting HE dynamic SM power saving, shall follow the dynamic SM power saving procedure and shall also enable its multiple receive chains if the trigger frame in response to the initiating frame exchange sequence meets the following conditions: the trigger frame is transmitted in a single spatial stream; the trigger frame comes from the associated AP; the trigger frame is a MU-RTS trigger frame, a buffer status report poll (BSRP) trigger frame, or a BQRP trigger frame and contains a User Info field with the AID12 subfield equal to the 12 least significant bits of the starting association identifier (AID) of the HE non-AP STA.

[0069] A HE non-AP STA shall, based on its spatial stream capabilities and operating mode, be able to receive PPDUs sent using multiple spatial streams a SIFS after the end of the PPDU it sends as a response. After the frame exchange sequence is complete, the HE non-AP STA may immediately switch back to single receive chain mode.

[0070] Enhanced multi-link single radio (EMLSR) operation

[0071] The EMLSR operation allows a non-AP MLD with multiple receive links to listen on one or more EMLSR links. The corresponding non-AP STAs to which the non-AP MLD is attached are awake, thereby receiving the initial control frames sent by the AP MLD-attached AP using non-HT (repeated) PPDUs and participating in frame exchanges on the links where the initial control frames were received.

[0072] A non-AP MLD can specify a set of links between the non-AP MLD and its associated AP MLD to operate in EMLSR mode. The set of links that are enabled and apply EMLSR mode is called an EMLSR link. If a non-AP STA affiliated with the non-AP MLD operating on one of the EMLSR links is awake, all STAs affiliated with the non-AP MLD that are not operating on EMLSR-enabled links should be asleep.

[0073] When a non-AP MLD runs in EMLSR mode on an EMLSR link, a non-AP STAT running on the EMLSR link and attached to the non-AP MLD cannot run in dynamic SM power saving mode on the EMLSR link.

[0074] Non-AP MLD and AP MLD supporting EMLSR mode can use rules 1 to 4 to perform operations in EMLSR mode.

[0075] Rule 1: A non-AP MLD should be able to monitor an EMLSR link by waking up its attached non-AP STA corresponding to the EMLSR link. This monitoring operation includes CCA and receiving the initial control frame of the frame exchange initiated by the AP MLD. A non-AP STA operating on an EMLSR link can change its power management mode; a non-AP STA can monitor the EMLSR link in active mode or in PS mode while awake.

[0076] Rule 2: When an AP MLD-affiliated AP initiates a frame exchange with a non-AP MLD on an EMLSR link that is neither a group address data frame nor a group address management frame, it should initiate the frame exchange by sending an initial control frame to the non-AP MLD, with the following restrictions: The initial control frame of the frame exchange should be sent in non-HT PPDU or non-HT duplicate PPDU format at a rate of 6 Mb / s, 12 Mb / s, or 24 Mb / s; the AP MLD-affiliated AP sets the padding field length of the initial control frame according to the rules defined in Trigger Frame Padding, ensuring that the MAC padding duration of the initial control frame is greater than or equal to the EMLSR padding delay; the initial control frame should be a MU-RTS trigger frame or a BSRP trigger frame. The number of spatial streams responding to the BSRP trigger frame should be limited to one and should be indicated in the BSRP trigger frame.

[0077] Rule 3: After receiving an initial control frame and transmitting an immediate response frame in response to the frame exchange, a non-AP STA affiliated with a non-AP MLD listening on the corresponding link can transmit or receive frames on the link that received the initial control frame but should not transmit or receive frames on other EMLSR links. Subject to its spatial stream capabilities, operating mode, and the minimum MAC frame padding duration of the initial control frame padding field, the non-AP STA affiliated with the non-AP MLD on the link that received the initial control frame should be able to receive PPDUs sent using multiple spatial streams after the SIFS following the completion of the transmission of the response frame to the initial control frame request. During the frame exchange, other APs affiliated with the AP MLD must not send frames on other EMLSR links to other non-AP STAs affiliated with the non-AP MLD.

[0078] Rule 4: The non-AP MLD should switch back to the listening operation on the EMLSR link after the EMLSR transition delay time at the end of the frame exchange.

[0079] Figure 2 is a schematic flow chart of a wireless communication method provided in an embodiment of the present application. The method shown in Figure 2 can be performed by a first device and a second device. Both the first device and the second device can be the communication devices described above.

[0080] The first device may be a non-AP STA. The first device may be an AP STA. The second device may be an AP STA. The second device may be a non-AP STA.

[0081] Both the first device and the second device can be MLDs. For example, the first device can be a non-AP MLD. The second device can be an AP MLD. The first device can be an AP MLD. The second device can be a non-AP MLD.

[0082] The second device may be a peer STA of the first device. For example, the second device may include a device associated with the first device. Alternatively, the second device may include a peer STA of the first device.

[0083] The first device may have one or more receive chains. The second device may have one or more receive chains.

[0084] The method shown in FIG. 2 may include step S210 .

[0085] Step S210: The first device receives a first frame sent by the second device.

[0086] The transmission of the first frame satisfies the requirements of the first capability mode of the first device. For example, the transmission of the first frame is limited by the requirements of the first capability mode. Alternatively, the transmission parameters of the first frame are less than or equal to the transmission parameters corresponding to the first capability mode.

[0087] It should be noted that the first capability mode may also be referred to as the "first capability operation mode".

[0088] It should be noted that the frame sent by the first device can also meet the requirements of the first capability mode. In other words, the transmission and / or reception of the first frame can meet the requirements of the first capability mode.

[0089] The capability corresponding to the first capability mode may be a first capability that is lower than a capability possessed by the first device.

[0090] The first capability being lower than the capability of the first device may include: compared to the capability of the first device, the requirements of the first capability mode may include one or more of the following: lower operating bandwidth; fewer receive chains; fewer receive spatial streams; smaller transmit spatial streams; lower receive data rate; lower transmit data rate; lower modulation order corresponding to the transmit MCS; lower modulation order corresponding to the receive MCS; and lower PPDU receive and / or transmit processing capability requirements. In other words, compared to the capability of the first device, the first device may adopt one or more of the following: lower bandwidth, fewer receive chains, fewer spatial streams, lower data rate, lower MCS, PPDU with lower processing overhead, etc., within the scope supported by the first capability.

[0091] Optionally, the first capability may include the ability to receive and / or transmit signals. For example, compared to the capabilities of the first device, the requirements of the first capability mode may include one or more of the following: lower receive bandwidth, fewer receive chains, fewer receive spatial streams, lower receive data rate, lower modulation order corresponding to the received MCS, and lower receive processing capability requirements for the PPDU. For another example, compared to the capabilities of the first device, the requirements of the first capability mode may include one or more of the following: lower transmit bandwidth, fewer transmit spatial streams, lower transmit data rate, lower modulation order corresponding to the transmitted MCS, and lower transmit processing capability requirements for the PPDU format.

[0092] Since the first capability is a lower capability, compared with performing the operation based on the capability of the first device, performing the operation based on the first capability mode can reduce power consumption during the operation, thereby achieving the effect of reducing energy consumption.

[0093] It should be noted that executing the operation may include one or more of the following: monitoring the operation channel, receiving a signal, and sending a signal.

[0094] The first capability mode may be a capability mode used by the first device in an awake state. That is, when the first device is in an awake state, the first device may perform operations using capabilities lower than those of the first device, thereby reducing the power consumption of the first device in the awake state. For example, with respect to the power management mode described above, when the communication device is in an active mode or an awake state in a power-saving mode, the station needs to be in a fully powered or full-power state. Based on the present application, the communication device may perform operations based on the first capability mode.

[0095] In addition, as mentioned above, the operation of EMLSR mode is mainly aimed at multi-link devices, and although the device in EMLSR mode monitors with low-power monitoring capabilities, it still needs to switch to full-power (or high-energy consumption) state when entering frame exchange (even if the current frame exchange does not require full-power switching capabilities). At the same time, the operation of EMLSR mode also has the problem of frequent switching. This application does not limit the type of communication equipment, that is, this application can be applied not only to MLD, but also to ordinary STA, so it has a wider range of applicability.

[0096] In some embodiments, the first capability or first capability mode may be limited to the transceiver capabilities set by the operating mode notification and / or the OMI process (if any). After the first device exits the first capability or first capability mode, it may directly adopt the transceiver capabilities set by the original operating mode notification and / or the OMI process (if any) without resetting the operating mode, thereby saving signaling overhead.

[0097] Optionally, the capability of the first device may be referred to as full capability. That is, the capability of the first device may be the maximum capability that the first device can achieve. Alternatively, when the first device performs an operation based on its capability, the first device may be in a full power state. Based on this, the first capability may be a capability lower than the full capability. In other words, the first capability may limit the capability of the first device. When the first device performs an operation using the first capability mode, the capability of the first device is limited, and the first device cannot perform the operation using the full capability.

[0098] In some embodiments, the capabilities of the first device may be determined by one or more of the hardware of the first device and the transmission requirements of the first device. For example, the capabilities of the first device may include one or more of the following: capabilities corresponding to a capabilities element sent by the first device, capabilities corresponding to an operating mode defined in an operating mode notification frame, and capabilities corresponding to an operating mode defined in an operating mode (OM) control frame.

[0099] For example, if the first device and the second device have exchanged an operation mode notification frame, the capability possessed by the first device may be a capability corresponding to the operation mode defined in the operation mode notification frame.

[0100] For another example, if an OM control frame is exchanged between the first device and the second device, the capability possessed by the first device may be a capability corresponding to the operation mode defined in the OM control frame.

[0101] For another example, if there is no interactive operation mode notification frame and OM control frame between the first device and the second device, the capability possessed by the first device may be the capability indicated by the capability element sent by the first device.

[0102] It should be noted that the present application does not limit the type of capability elements. For example, the capability element may include an ultra-high reliability (UHR) capability element.

[0103] In the present application, the function of a communication device being able to perform operations based on a capability mode lower than full capability may be referred to as a capability adaptation power save (CAA PS) operation mode function or a capability change power save operation mode function.

[0104] It should be noted that "capability adaptation to adjust energy-saving operation mode" or "capability change energy-saving operation mode function" is only one way of expressing the technical solution provided by this application. The technical solution of this application can also be expressed by other names.

[0105] When the capability adaptation energy-saving operation mode is enabled, the first device can operate according to the first capability mode. When the capability adaptation energy-saving operation mode is disabled, the first device cannot operate according to the first capability mode.

[0106] For example, in a case where the capability adaptation energy saving operation mode is enabled, if the first device is in an awake state, the first device can perform operations according to the first capability mode.

[0107] For another example, when the capability adaptation energy-saving operation mode is disabled, if the first device is in an awake state, the first device may perform operations according to the full capability but cannot perform operations according to the first capability mode.

[0108] In some embodiments, the technical solution corresponding to the capability adaptation and adjustment of the energy-saving operation mode can be implemented in conjunction with SM energy saving. For example, when the function of performing operations in the first capability mode is enabled in the awake state, and the SM energy saving function is enabled, the first device can immediately switch back to the single receive chain mode (subject to the limitations of the SM energy saving mode) after the frame exchange sequence is completed and receive signals at a lower transmission rate (subject to the limitations of the first capability).

[0109] In some embodiments, the first device may continuously perform operations based on the first capability mode. For example, while the first device is awake, the first device may always perform operations based on the first capability mode. That is, while the first device is awake, the first device can only maintain the first capability mode and perform operations based on the first capability mode. For example, during frame exchange between the first device and the second device, the first device maintains the first capability mode and performs operations based on the first capability mode.

[0110] Optionally, the mode in which the first device continuously operates based on the first capability mode may be referred to as the "first mode," "static energy saving," or "static capability adaptation energy saving mode." When the static capability adaptation energy saving mode is enabled, the first device may continuously operate based on the first capability mode.

[0111] In some embodiments, the first device can switch from a first capability mode to a second capability mode and perform operations based on the second capability mode. The capability corresponding to the second capability mode (hereinafter referred to as the second capability) can be higher than the first capability. For example, the second capability can be the full capability, or the second capability can be lower than the full capability and higher than the first capability.

[0112] It should be noted that the second capability mode may also be referred to as the "second capability operation mode".

[0113] For example, compared with the first capability mode, when the first device performs operations based on the second capability mode, the first device may adopt one or more of higher bandwidth, more receive chains, more spatial streams, higher data rate, higher order MCS, PPDU with high processing overhead, etc. within the scope supported by the second capability mode.

[0114] In some embodiments, the second capability mode may be limited to the transceiver capability mode set by the operating mode notification and / or the OMI process (if any). After the first device exits the second capability mode, it may directly adopt the transceiver capability mode set by the original operating mode notification and / or the OMI process (if any) without resetting the operating mode, thereby saving signaling overhead.

[0115] In some embodiments, the first capability is referred to as "low capability (LC)". Correspondingly, the first capability mode can be referred to as "low capability operating mode" or "low capability mode". The second capability is referred to as "high capability (HC)". Correspondingly, the second capability mode can be referred to as "high capability operating mode" or "high capability mode". It will be understood that "low capability" is relative to the second capability or full capability, and "high capability" is relative to the first capability.

[0116] Optionally, the mode in which the first device can switch from the first capability mode to the second capability mode and perform operations can be referred to as "second mode," "dynamic energy saving," or "dynamic capability adaptation energy saving mode." When the dynamic capability adaptation energy saving mode is enabled, the first device can switch from the first capability mode to the second capability mode.

[0117] As can be seen, based on this application, the capability modes that the first device can use are more diverse. For example, in the awake state, the first device can use more diverse capability modes. Exemplarily, the first device can use one or more of the first capability mode, the second capability mode, and the full capability mode. Therefore, in this application, the communication device can use a more flexible energy-saving mode to perform operations. Furthermore, the energy-saving controllability is more refined.

[0118] In some embodiments, the specific operation mode of the energy-saving mode may include a static capability adaptation energy-saving mode and a dynamic capability adaptation energy-saving mode. The specific operation mode of the energy-saving mode may be pre-negotiated or determined by default.

[0119] In some embodiments, the first device may switch between the first capability mode and the second capability mode (e.g., switch from the first capability mode to the second capability mode) according to the indication of the first field in the first specific frame. For example, the first field may indicate that the first device needs to switch from the first capability mode to the second capability mode. Alternatively, the first field may indicate that the first device does not need to switch from the first capability mode to the second capability mode, that is, remains in the first capability mode.

[0120] Exemplarily, the first field may be represented by 1 bit. For example, a value of 1 in the first field may indicate that the first device needs to switch from the first capability mode to the second capability mode; a value of 0 in the first field may indicate that the first device maintains the current capability mode. For another example, a value of 0 in the first field may indicate that the first device needs to switch from the first capability mode to the second capability mode; a value of 1 in the first field may indicate that the first device maintains the current capability mode.

[0121] In some embodiments, the first field may also be referred to as a handover indication field.

[0122] It is understandable that the indication based on the first field of the first specific frame is a command-type or mandatory indication. Therefore, in some embodiments, the mode in which the first device switches between the first capability mode and the second capability mode based on the indication of the first field in the first specific frame can be referred to as a "dynamic capability adaptation energy-saving mode based on mandatory control."

[0123] Optionally, when the dynamic capability adaptation energy-saving mode based on forced control is enabled, the first device may switch between the first capability mode and the second capability mode according to the indication of the first field in the first specific frame. When the dynamic capability adaptation energy-saving mode based on forced control is disabled, the first device may not switch between the first capability mode and the second capability mode according to the indication of the first field in the first specific frame.

[0124] The first specific frame may also be used to indicate whether the second capability is a capability possessed by the first device. That is, the first specific frame may also be used to indicate whether the second capability is a full capability.

[0125] In some embodiments, the first special frame may include a second field. The second field may be used to indicate whether the second capability is a full capability. The second field may be 1 bit. For example, a value of 0 in the second field may indicate that the second capability is a full capability; a value of 1 in the second field may indicate that the second capability is not a full capability. For another example, a value of 0 in the second field may indicate that the second capability is a full capability; a value of 1 in the second field may indicate that the second capability is not a full capability.

[0126] In some embodiments, the second field may be referred to as a target capability mode field.

[0127] The first special frame may include one or more of the following: an initial frame, an initial control frame, and a special indication frame.

[0128] The initial frame may refer to the first frame in a frame exchange process (or frame exchange sequence) between the first device and the second device. For example, the initial frame may include a Quality of Service (QoS) Null frame. It can be seen that the first device can switch to the second capability mode when starting the frame exchange.

[0129] An initial control frame may refer to the first control frame in a frame exchange process between a first device and a second device. For example, the first special frame may include a MU-RTS trigger frame. In some cases, the initial frame may include an initial control frame, or the initial frame may include the first frame other than an initial control frame.

[0130] It is understood that when the first specific frame includes an initial frame or an initial control frame, the first device can switch to the second capability mode, i.e., a higher capability mode, to perform frame exchange when the frame exchange begins. In other words, the first device can adapt to the frame exchange requirements and switch to the second capability mode, thereby achieving better energy conservation.

[0131] The specific indication frame can be a newly defined frame or a control frame already known in the related art. The specific indication frame can be a specific frame during the frame exchange. It can be seen that based on the indication of the specific indication frame, the first device can switch from the first capability mode to the second capability mode during the frame exchange (i.e., in the middle of the frame exchange process). Therefore, the specific indication frame can achieve more flexible switching between the first capability mode and the second capability mode in terms of time.

[0132] It is understandable that the second device can use the first field of the first specific frame to achieve precise control of the switching between the first capability mode and the second capability mode. For example, if the second device wants to perform a low-traffic frame exchange process with the first device, the second device can instruct the first device to maintain the first capability mode through the first field, thereby avoiding the energy waste caused by the first device switching to the second capability mode. For another example, if the second device wants to perform a high-traffic frame exchange process with the first device, the second device can instruct the first device to switch to the first capability mode through the first field, thereby meeting the frame exchange requirement and allowing users to have a better experience.

[0133] In some embodiments, the first device may switch between the first capability mode and the second capability mode (eg, switch from the first capability mode to the second capability mode) based on the reception status of the second specific frame.

[0134] Illustratively, the reception status of the second specific frame may include one or more of the following: whether the second specific frame is successfully received, whether the second specific frame is successfully parsed, and whether the second specific frame is received under a specific condition. The specific condition may include, for example, receiving the second specific frame within a specific time period.

[0135] It can be understood that the second special frame does not need to indicate the switching between the first capability mode and the second capability mode by setting corresponding fields (ie, implicit indication), thereby reducing the consumption of communication resources.

[0136] Optionally, in response to receiving the second specific frame or the completion of the frame exchange of the second specific frame (the completion of the transmission of the feedback frame corresponding to the second specific frame), the first device may switch from the first capability mode to the second capability mode. For example, during the process of receiving the second specific frame by the first device, the transmission parameters used by the first device may be constrained by the first capability mode. After the frame exchange of the second specific frame is completed, the first device can support the transmission parameters corresponding to the second capability mode.

[0137] The mode in which the first device switches between the first capability mode and the second capability mode according to the reception situation of the second specific frame can be called "dynamic capability adaptation energy-saving mode based on default operation". When the dynamic capability adaptation energy-saving mode based on default operation is enabled, the first device can switch between the first capability mode and the second capability mode according to the reception situation of the second specific frame. When the dynamic capability adaptation energy-saving mode based on default operation is disabled, the first device may not switch between the first capability mode and the second capability mode according to the reception situation of the second specific frame.

[0138] The specific operation type of the energy-saving mode may include a dynamic capability adaptation energy-saving mode based on default operation and a dynamic capability adaptation energy-saving mode based on mandatory control. The specific operation type of the energy-saving mode may be pre-negotiated or determined by default.

[0139] The second special frame may include one or more of the following: an initial frame, an initial control frame, and a special indication frame.

[0140] It should be noted that the first specific frame and the second specific frame can be combined to indicate the switching between the first capability mode and the second capability mode. For example, if the first device receives the first specific frame, the first device can perform the switching between the first capability mode and the second capability mode according to the first field in the first specific frame; if the first device receives the second specific frame, the first device can switch from the first capability mode to the second capability mode immediately after receiving the second specific frame.

[0141] Exemplarily, the first specific frame may include an initial frame that is not an initial control frame, and the second specific frame may include an initial control frame. When the first device receives the initial frame that is not an initial control frame, the first device needs to determine whether to switch from the first capability mode to the second capability mode based on an indication of the first field in the frame; when the first device receives the initial control frame, the first device needs to switch from the first capability mode to the second capability mode.

[0142] The switching mode information may be used to indicate the frame based on which the first device switches between the first capability mode and the second capability mode. The switching mode information may indicate one of the following: switching between the first capability mode and the second capability mode based on the first field in the first specific frame; switching between the first capability mode and the second capability mode based on the reception of the second specific frame; or switching between the first capability mode and the second capability mode based on the first field in the first specific frame and the reception of the second specific frame.

[0143] The second device may reserve a switching time for the first device so that the first device can complete the switch between the first capability mode and the second capability mode. For example, the PPDU containing the first specific frame or the second specific frame sent by the second device may include padding. During the duration of the padding, the first device may complete the switch between the first capability mode and the second capability mode.

[0144] It can be understood that, based on the padding, the first device can switch from the first capability mode to the second capability mode before the PPDU transmission end time point carrying the first specific frame or the second specific frame.

[0145] The duration of the padding in the PPDU in which the first specific frame or the second specific frame is located may be determined based on a negotiation between the first device and the second device, or the duration of the padding in the first specific frame or the second specific frame may be determined by default. For example, the first device and the second device may negotiate to determine a minimum padding delay, and the duration of the padding in the PPDU in which the first specific frame or the second specific frame is located may be greater than the minimum padding delay.

[0146] The switching delay between the first capability mode and the second capability mode may be pre-negotiated or determined by default. The switching delay may refer to the duration from the start of the capability mode switch to the completion of the capability mode switch. For example, the switching delay between the first capability mode and the second capability mode may be pre-negotiated or determined by default. For another example, the switching delay between the second capability mode and the first capability mode may be pre-negotiated or determined by default.

[0147] Based on the switching delay between the first capability mode and the second capability mode, the second device may determine a duration of padding in the first specific frame or the second specific frame. For example, the duration of padding may be greater than or equal to the switching delay.

[0148] In some embodiments, if the first condition is met, the first device can switch from the second capability mode back to the first capability mode.

[0149] For example, the first condition may include that the frame exchange process between the first device and the second device has ended. In other words, when the frame exchange process between the first device and the second device has ended, the first device can switch back to the first capability mode. Exemplarily, the first device can switch back to the first capability mode to perform operations after a transition delay at the end time of the frame exchange. The transition delay may be pre-negotiated or determined by default. For example, the transition delay may be indicated by an association request frame sent by the first device and / or a first indication frame described below.

[0150] For another example, the first condition may include that the duration of the first device's use of the second capability mode is greater than or equal to a first duration threshold. The first duration threshold may be a positive number. In other words, the duration of the first device's use of the second capability mode may not exceed the first duration threshold.

[0151] In some embodiments, within a first time interval, the first device completes switching from the second capability mode back to the first capability mode. The first time interval may be default or pre-negotiated.

[0152] In some embodiments, the first special frame may be referred to as a control frame capable of adapting to dynamic control of the energy-saving mode.

[0153] In some embodiments, the first special frame may be extended based on the MU-RTS trigger frame defined in the related art (IEEE 802.11be standard). The extended definition of the MU-RTS trigger frame is described below with reference to FIG3 .

[0154] FIG3 is a schematic diagram of the format of a common information field of a MU-RTS trigger frame provided in an embodiment of the present application. As shown in Figure 3, the common information field of the MU-RTS trigger frame may include one or more of the following fields: trigger frame type, uplink length, more TF, CS required, uplink bandwidth (UL BW), GI and HE-LTF type, trigger transmission opportunity (TXOP) sharing mode, MU-MIMO HE-LTF mode, number of HE-LTF symbols and midamble periodicity, UL STBC, LDPC Extra Symbol Segment, AP Tx power, FEC pre-filling factor, PE disambiguation, uplink spatial reuse, Doppler, UL HE-SIG-A2 reserved, and trigger dependent common Info.

[0155] As shown in Figure 3, the common information field of the MU-RTS trigger frame may further include: a handover indication field (i.e., a first field) and / or a target capability mode field (i.e., a second field). As shown in Figure 3, the handover indication field may occupy the same bits as the PE ambiguity field.

[0156] In some embodiments, a first device may send a first indication frame to a second device. The first indication frame may be related to a first capability mode. For example, the first indication frame may be used to indicate information related to the first capability mode. In another example, the first indication frame may be used to indicate information related to a capability adaptation energy-saving operation mode. Therefore, the first indication frame may also be referred to as a "capability adaptation energy-saving operation mode notification frame" or a "capability adaptation energy-saving frame."

[0157] It should be noted that this application does not limit the order in which step S210 and "the first device sending the first indication frame to the second device" are executed. For example, before step S210, the first device may send the first indication frame to the second device to enable capability adaptation and energy saving. Alternatively, after step S210, the first device may send the first indication frame to the second device to update configuration information related to the first capability mode.

[0158] It should be noted that the first indication frame needs to be transmitted using transmission parameters that meet the first capability mode of the first device, so that the first device can receive and correctly parse the first indication frame.

[0159] In some embodiments, the first indication frame may include enabling information. The enabling information may be used to indicate whether the first device is enabled to perform operations based on the first capability mode, or whether the first device is disabled to perform operations based on the first capability mode. The enabling and disabling of the first device's ability to perform operations based on the first capability mode may correspond to the enabling and disabling of the capability adaptation energy-saving mode, respectively. In other words, the enabling information may be used to indicate whether the capability adaptation energy-saving function is enabled.

[0160] For example, when a station supporting the capability adaptation energy-saving operation mode prepares to enable its capability adaptation energy-saving operation mode, the station may send a first indication frame to the opposite station and indicate enabling the capability adaptation energy-saving operation mode through enabling information.

[0161] For another example, when a station supporting the capability adaptation energy-saving operation mode is ready to shut down or disable the capability adaptation energy-saving operation mode, the station may send a first indication frame to the opposite station and indicate to disable the capability adaptation energy-saving operation mode through enabling information.

[0162] The first indication frame may include a capability adaptation and energy saving enabled (CAA PS enabled) field. The capability adaptation and energy saving enabled field may be used to indicate enabling information. The capability adaptation and energy saving enabled field may be 1 bit. For example, a capability adaptation and energy saving enabled field of 1 may indicate that capability adaptation and energy saving are enabled on the first device; a capability adaptation and energy saving enabled field of 0 may indicate that capability adaptation and energy saving are not enabled on the first device, that is, the capability adaptation and energy saving function is turned off. For another example, a capability adaptation and energy saving enabled field of 0 may indicate that capability adaptation and energy saving are enabled on the first device; a capability adaptation and energy saving enabled field of 1 may indicate that capability adaptation and energy saving are not enabled on the first device, that is, the capability adaptation and energy saving function is turned off.

[0163] It should be noted that the capability adaptation energy saving field is only an example of the name of the field that carries enabling information. The field that carries enabling information can also be called other names, and this application does not impose any restrictions.

[0164] In some embodiments, the first indication frame may include mode information, which may be used to indicate a first mode or a second mode. In the first mode, the first device may continue to operate based on the first capability mode. In the second mode, the first device may switch from the first capability mode to the second capability mode and operate based on the second capability mode. The first and second modes are described above and are not repeated here.

[0165] The first indication frame may include a Capability Adaptation Energy Saving Mode field. The Capability Adaptation Energy Saving Mode field may be used to indicate mode information. The Capability Adaptation Energy Saving Mode field may be 1 bit. For example, setting the Capability Adaptation Energy Saving Mode field to 1 may indicate the first mode; setting the Capability Adaptation Energy Saving Mode field to 0 may indicate the second mode. For another example, setting the Capability Adaptation Energy Saving Mode field to 0 may indicate the first mode; setting the Capability Adaptation Energy Saving Mode field to 1 may indicate the second mode.

[0166] It should be noted that the capability adaptation energy-saving mode field is only an example of the name of the field that carries the mode information. The field that carries the mode information can also be called other names, and this application does not limit it.

[0167] In some embodiments, the first indication frame may include switching mode information. The switching mode information may be used to indicate a manner in which the first device switches from the first capability mode to the second capability mode. In other words, the switching mode information may indicate a specific operating mode and / or type of the dynamic capability adaptation energy-saving mode that the first device will enter. For example, the switching mode information may be used to indicate: whether the first device switches from the first capability mode to the second capability mode (i.e., a dynamic capability adaptation energy-saving mode based on forced control) according to the indication of the first field in the first specific frame; and / or whether the first device switches from the first capability mode to the second capability mode (i.e., a dynamic capability adaptation energy-saving mode based on default operation) according to the reception of the second specific frame. For details about the first specific frame and the second specific frame, please see above and will not be repeated here.

[0168] The first indication frame may include a switching mode field. The switching mode field may be used to indicate switching mode information. The switching mode information field may be 2 bits. The encoding and corresponding definition of the switching mode information field may be as shown in Table 1.

[0169] Table 1

[0170] It should be noted that Table 1 is merely an example. For example, some of the contents in Table 1 can be implemented independently. For another example, the correspondence between the codes and definitions in Table 1 can be adjusted.

[0171] It should be noted that the switching mode field is only an example of the name of the field that carries the switching mode information. The field that carries the switching mode information can also be called other names, and this application does not limit it.

[0172] In some embodiments, the first indication frame may include filling time information. The filling time information may be used to indicate a filling duration in the first specific frame or the second specific frame.

[0173] Exemplarily, the filling time information can be used to indicate: a first time and / or a second time. The first time can indicate the minimum MAC filling duration required to go from the first capability mode to the second capability mode. The second time can indicate the minimum MAC filling duration required to go from the first capability mode to the full capability mode. It should be noted that, when the second capability mode is the full capability mode, the filling time may include the first time but not the second time. The filling duration in the first specific frame or the second specific frame can be determined based on the filling time information. For example, the filling duration in the first specific frame or the second specific frame may be greater than or equal to the first time or the second time.

[0174] The filling time information can be indicated by one or more capability adaptation energy-saving filling delay fields in the first indication frame. For example, one or more capability adaptation energy-saving filling delay fields may include one or more of the following fields: capability adaptation energy-saving filling delay 1 field, capability adaptation energy-saving filling delay 2 field. Among them, the capability adaptation energy-saving filling delay 1 subfield may indicate the minimum MAC filling duration of the frame (first specific frame or second specific frame) required for switching from the first capability operation to the full capability operation requested by the first device. Capability adaptation energy-saving filling delay 2 may indicate: the minimum MAC filling duration of the frame (first specific frame or second specific frame) required for switching from the first capability mode to the second capability mode requested by the first device. It should be noted that when the second capability is full capability, either capability adaptation energy-saving filling delay 1 or capability adaptation energy-saving filling delay 2 may not exist.

[0175] It should be noted that the capability adaptation energy-saving filling delay field is only an example of the name of the field that carries the filling time information. The field that carries the filling time information can also be called other names, and this application does not limit it.

[0176] The one or more capability adaptation energy saving filling delay fields may be subfields of the capability adaptation energy saving delay field. The capability adaptation energy saving delay field may be used to indicate a delay related to capability adaptation energy saving.

[0177] The Capability Adaptation Energy Saving Fill Delay field may be 3 bits. The encoding and value of the Capability Adaptation Energy Saving Fill Delay field may be as shown in Table 2.

[0178] Table 2

[0179] It should be noted that Table 2 is only an example. For example, some of the contents in Table 2 can be implemented separately. For another example, the correspondence between the capability adaptation energy saving fill delay field value and the delay (i.e., duration) in Table 2 can be adjusted.

[0180] In some embodiments, the first indication frame may include first control information. The first control information may be used to indicate whether the first indication frame includes padding time information. For example, the first control information may be used to indicate whether the first indication frame includes part or all of the capability adaptation energy saving padding delay field. For another example, the first control information may be used to indicate whether the first indication frame includes the capability adaptation energy saving parameter field.

[0181] Optionally, the first indication frame may include a capability adaptation energy saving delay parameter control field. The capability adaptation energy saving delay parameter control field may be used to indicate the first control information. The capability adaptation energy saving delay parameter control field may be 1 bit. For example, when the capability adaptation energy saving mode (CAA PS Mode) field is equal to 1 and the capability adaptation energy saving delay parameter field is present in the first indication frame, the capability adaptation energy saving control field is set to 1; otherwise, it is set to 0. For another example, when the capability adaptation energy saving control field is included in a frame sent to the AP, the capability adaptation energy saving control field may be set to 0.

[0182] It should be noted that the capability adaptation energy-saving delay parameter control field is only an example of the name of the field carrying the first control information. The field carrying the first control information can also be called other names, and this application does not impose any restrictions.

[0183] In some embodiments, the first indication frame may include switching delay information. The switching delay information may be used to indicate: the duration for the first device to switch from the first capability mode to the second capability mode; and / or the duration for the first device to switch from the second capability mode to the first capability mode.

[0184] For example, the switching delay information may include a first switching time and / or a second switching time. Within the first switching time, the first device can complete the switching from the first capability mode to the second capability mode. That is, the first switching time may indicate the minimum time for the first device to complete the switching from the first capability mode to the second capability mode. Within the second switching time, the first device can complete the switching from the first capability mode to the full capability mode. That is, the second switching time may indicate the minimum time for the first device to complete the switching from the first capability mode to the full capability mode. It should be noted that, when the second capability mode is the full capability mode, the switching time may include the first switching time and does not include the second switching time. Exemplarily, the filling time in the first specific frame or the second specific frame may be greater than or equal to the first switching time. Or, the filling time in the first specific frame or the second specific frame may be greater than or equal to the second switching time.

[0185] The switching delay information may be indicated by one or more capability adaptation energy-saving conversion delay fields in the first indication frame. For example, one or more capability adaptation energy-saving conversion delay fields may include one or more of the following fields: capability adaptation energy-saving conversion delay 1 field, capability adaptation energy-saving conversion delay 2 field. Among them, the capability adaptation energy-saving conversion delay 1 field may indicate the minimum time required for the first device to switch from the first capability to the full capability. The capability adaptation energy-saving conversion delay 2 field may indicate: the minimum time required for the first device to switch from the first capability mode to the second capability mode. It should be noted that when the second capability is the full capability, either capability adaptation energy-saving conversion delay 1 or capability adaptation energy-saving conversion delay 2 may not exist.

[0186] It should be noted that the capability adaptation energy-saving conversion delay field is only an example of the name of the field that carries the switching delay information. The field that carries the switching delay information can also be called other names, and this application does not limit it.

[0187] The one or more capability adaptation energy saving conversion delay fields may be subfields of the capability adaptation energy saving delay field.

[0188] The capability adaptation energy saving conversion delay field may be 3 bits. The encoding and value of the capability adaptation energy saving conversion delay field may be as shown in Table 3.

[0189] Table 3

[0190] It should be noted that Table 3 is only an example. For example, some of the contents in Table 3 can be implemented separately. For another example, the correspondence between the capability adaptation energy saving conversion delay field value and the delay (i.e., duration) in Table 3 can be adjusted.

[0191] In some embodiments, the first indication frame may include second control information. The second control information may be used to indicate whether the first indication frame includes switching delay information. For example, the second control information may be used to indicate whether the first indication frame includes part or all of the capability adaptation energy saving transition delay field. In another example, the second control information may be used to indicate whether the first indication frame includes the capability adaptation energy saving parameter field. That is, the first control information and the second control information may be the same, or the first control information and the second control information may be indicated by the same field.

[0192] Optionally, the first indication frame may include a Capability Adaptation Energy Saving Delay Parameter Control field. The Capability Adaptation Energy Saving Delay Parameter Control field may be used to indicate the second control information. The Capability Adaptation Energy Saving Delay Parameter Control field may be 1 bit. For example, when the Capability Adaptation Energy Saving Mode field is equal to 1 and the Capability Adaptation Energy Saving Delay Parameter field is present in the first indication frame, the Capability Adaptation Energy Saving Control field is set to 1; otherwise, it is set to 0. For another example, when the Capability Adaptation Energy Saving Control field is included in a frame sent to an AP, the Capability Adaptation Energy Saving Control field may be set to 0.

[0193] In some embodiments, the first indication frame may include first indication information. The first indication information may be used to indicate whether the first device adopts default transmission parameters corresponding to the second capability mode when the first device performs an operation based on the second capability mode.

[0194] Optionally, the default transmission parameters corresponding to the second capability mode may be transmission parameters corresponding to the full capability mode. That is, the default transmission parameters corresponding to the second capability mode may be transmission parameters corresponding to the operation mode declared by the first device.

[0195] Optionally, the default transmission parameters corresponding to the second capability mode may be pre-negotiated or pre-defined.

[0196] The first indication frame may include a default high-capability operation field. The default high-capability operation field may be used to indicate the first indication information. The default high-capability operation field may be 1 bit. For example, a value of 1 in the default high-capability operation field may indicate that the first device adopts the default transmission parameters corresponding to the second capability mode; a value of 0 in the default high-capability operation field may indicate that the first device does not adopt the default transmission parameters corresponding to the second capability mode. For another example, a value of 0 in the default high-capability operation field may indicate that the first device adopts the default transmission parameters corresponding to the second capability mode; a value of 1 in the default high-capability operation field may indicate that the first device does not adopt the default transmission parameters corresponding to the second capability mode.

[0197] It should be noted that the high-capability operation field is only an example of the name of the field carrying the first indication information. The field carrying the first indication information can also be called other names, and this application does not impose any restrictions.

[0198] In some embodiments, the first indication frame may include second indication information. The second indication information may be used to indicate whether the first device adopts the default transmission parameters corresponding to the first capability mode when the first device performs an operation based on the first capability mode. Exemplarily, the default transmission parameters corresponding to the first capability mode may include one or more of the following: monitoring capabilities including CCA PS and receiving initial frames for frame exchange initiated by the opposite station; having an operating bandwidth of 20 MHz; being able to receive non-HT PPDU or non-HT repeated PPDU; and supporting rates of 6 Mb / s, 12 Mb / s, or 24 Mb / s.

[0199] The first indication frame may include a default low-capability operation field. The default low-capability operation field may be used to indicate the second indication information. The default low-capability operation field may be 1 bit. For example, a value of 1 in the default low-capability operation field may indicate that the first device adopts the default transmission parameters corresponding to the first capability mode; a value of 0 in the default low-capability operation field may indicate that the first device does not adopt the default transmission parameters corresponding to the first capability mode. For another example, a value of 0 in the default low-capability operation field may indicate that the first device adopts the default transmission parameters corresponding to the first capability mode; a value of 1 in the default low-capability operation field may indicate that the first device does not adopt the default transmission parameters corresponding to the first capability mode.

[0200] It should be noted that the low-capability operation field is only an example of the name of the field carrying the second indication information. The field carrying the second indication information can also be called other names, and this application does not impose any restrictions.

[0201] In some embodiments, the first indication frame may include a first operating parameter. The first operating parameter may be used to indicate a transmission parameter corresponding to the first capability mode. It is understood that based on the first operating parameter, the first indication frame may indicate or update the transmission parameter corresponding to the first capability mode.

[0202] It should be noted that the first indication frame may not include the first operating parameter. The transmission parameter corresponding to the first capability mode may be pre-negotiated, pre-defined or default.

[0203] In some embodiments, the first indication frame may include a second operating parameter. The second operating parameter may be used to indicate a transmission parameter corresponding to the second capability mode. It is understood that based on the second operating parameter, the first indication frame may indicate or update the transmission parameter corresponding to the second capability mode.

[0204] It should be noted that the first indication frame may not include the second operation parameter. The transmission parameter corresponding to the second capability mode may be pre-negotiated, pre-defined or default.

[0205] The transmission parameters corresponding to the first capability mode or the transmission parameters corresponding to the second capability mode may include one or more of the following: operating bandwidth, received PPDU format, MCS, number of receive spatial streams, number of transmit spatial streams, and number of receive chains.

[0206] Optionally, one or more of the operating bandwidth, received PPDU format, MCS, number of receive spatial streams, number of transmit spatial streams, and number of receive chains may be indicated separately, i.e., by separate fields. Alternatively, at least two of the operating bandwidth, received PPDU format, MCS, number of receive spatial streams, number of transmit spatial streams, and number of receive chains may be indicated jointly, i.e., by a single field.

[0207] The following example illustrates transmission parameters using the combined indication of the MCS and the number of spatial streams. For example, the transmission parameters may include: the number of receive spatial streams supported by the first device for the first MCS within a first operating bandwidth. Another example may include: the number of transmit spatial streams supported by the first device for the first MCS within the first operating bandwidth. Another example may include: the number of receive spatial streams supported by the first device for the first MCS within a PPDU conforming to a first PPDU format. Another example may include: the number of transmit spatial streams supported by the first device for the first MCS within a PPDU conforming to a first PPDU format. Another example may include: the number of receive spatial streams supported by the first device for the first MCS within a PPDU conforming to a first PPDU format. Another example may include: the number of receive spatial streams supported by the first device for the first MCS within a PPDU conforming to a first PPDU format within the first operating bandwidth. Another example may include: the number of transmit spatial streams supported by the first device for the first MCS within a PPDU conforming to a first PPDU format within the first operating bandwidth.

[0208] The transmission parameters corresponding to the first capability mode and the transmission parameters corresponding to the second capability mode are described below respectively.

[0209] The operating bandwidth supported by the first capability mode can be indicated by a low capability mode operating bandwidth (LC channel width) field. The low capability mode operating bandwidth can be 4 bits.

[0210] It should be noted that the name of the low capability mode operating bandwidth field is only an example, and the field carrying the operating bandwidth supported by the first capability mode may also be called by other names.

[0211] The PPDU formats supported by the first capability mode may be indicated by the PPDU formats supported for reception in low capability mode field. The PPDU formats supported by the first capability mode may include one or more of the following: non-HT PPDU, non-HT duplicate PPDU, HE PPDU, EHT PPDU, and UHR PPDU.

[0212] The PPDU format field for low capability mode support reception may be 4 bits. The encoding and corresponding definition of the PPDU format field for low capability mode support reception may be as shown in Table 4.

[0213] Table 4

[0214] It should be noted that Table 4 is merely an example. For example, some of the contents in Table 4 can be implemented independently. For another example, the correspondence between the two columns in Table 4 can be adjusted.

[0215] It should be noted that the name of the PPDU format field supported by the low capability mode is only an example, and the PPDU format field supported by the first capability mode may also be called by other names.

[0216] The MCS and SS parameter sets supported in low capability mode field may indicate MCS and SS parameter sets that the first device can support when in the first capability mode. For example, the MCS and SS parameter sets supported in low capability mode field may indicate the maximum number of spatial streams that the first device can support for reception and / or transmission for each MCS value in a PPDU that is less than or equal to a given bandwidth (the given bandwidth may be indicated by the Low Capability Mode Operation Bandwidth field, for example) and / or conforms to a given PPDU format (the given PPDU format may be indicated by the PPDU Formats Supported in Low Capability Mode field, for example). For example, the MCS and SS parameter set fields supported in low-capability mode may include one or more of the following fields: MCS Map (BW = 20 MHz), MCS Map (BW ≤ 40 MHz), MCS Map (BW ≤ 80 MHz), MCS Map (BW = 160 MHz), MCS Map (BW = 320 MHz), Rx Maximum NSS for MCS 0-9, Tx Maximum NSS for MCS 0-9, Rx Maximum NSS for MCS 10-11, Tx Maximum NSS for MCS 10-11, Rx Maximum NSS for MCS 12-13, and Tx Maximum NSS for MCS 12-13. For the definition and coding of each field, please refer to Tables 5 to 7.

[0217] Table 5

[0218] It should be noted that Table 5 is merely an example. For example, some of the contents in Table 5 can be implemented separately. For another example, the correspondence between the contents of each column in Table 5 can be adjusted.

[0219] Table 6

[0220] It should be noted that Table 6 is merely an example. For example, some of the contents in Table 6 can be implemented separately. For another example, the correspondence between the contents of each column in Table 6 can be adjusted.

[0221] The encoding of each field in Table 6 can be shown in Table 7.

[0222] Table 7

[0223] It should be noted that Table 7 is merely an example. For example, some of the contents in Table 7 can be implemented separately. For another example, the correspondence between the contents of each column in Table 7 can be adjusted.

[0224] The MCS and SS parameter sets supported by the high-capability mode field may indicate the MCS and SS parameter sets that the first device can support when in the second capability mode. For example, the MCS and SS parameter sets supported by the high-capability mode field may indicate the maximum number of spatial streams that the first device can support for reception and / or transmission for each MCS value in a PPDU that is less than or equal to a given bandwidth (the given bandwidth may be indicated by the high-capability mode operating bandwidth field, for example) and / or conforms to a given PPDU format (the given PPDU format may be indicated by the PPDU formats supported by the high-capability mode field, for example). For example, the MCS and SS parameter set fields supported by the high-capability mode may include one or more of the following fields: MCS Map (BW = 20 MHz), MCS Map (BW ≤ 40 MHz), MCS Map (BW ≤ 80 MHz), MCS Map (BW = 160 MHz), MCS Map (BW = 320 MHz), Rx Maximum NSS for MCS 0-9, Tx Maximum NSS for MCS 0-9, Rx Maximum NSS for MCS 10-11, Tx Maximum NSS for MCS 10-11, Rx Maximum NSS for MCS 12-13, and Tx Maximum NSS for MCS 12-13. For the definition and coding of each field, please refer to Tables 5 to 7.

[0225] In some embodiments, a first device may receive a first response frame sent by a second device. The first response frame may be used to respond to a first indication frame. For example, the first response frame may indicate to the second device that it confirms the execution of an operation according to the instruction of the first indication frame. For example, after the first device receives the first response frame sent by the second device, the information indicated in the first indication frame regarding the capability adaptation energy-saving mode of the first device may take effect.

[0226] FIG4 is a schematic flow chart of a wireless communication method provided by the present application. In FIG4 , the first device is a STA and the second device is an AP. The method shown in FIG4 may include step S410.

[0227] Step S410: The STA sends a first indication frame to the AP.

[0228] SIFS after the AP receives the first indication frame, the AP may feedback an ACK.

[0229] Optionally, the method shown in FIG4 may further include step S420.

[0230] Step S420: The AP sends a first response frame to the STA.

[0231] SIFS after the STA receives the first response frame, the STA can feedback ACK.

[0232] In some embodiments, the first response frame needs to be sent within the transition timeout interval. The transition timeout interval may be equal to or greater than 0. For example, after the second device receives the first indication frame (indicating enabling the capability adaptation energy-saving operation mode), if it is ready to provide services to the first device that will be in the capability adaptation energy-saving operation mode, then as a response to the received first indication frame, the second device may send the first response frame to the first device within the transition timeout interval. For another example, after the second device receives the first indication frame (indicating disabling the capability adaptation energy-saving operation mode), if it is ready to no longer provide services to the communication device in the capability adaptation energy-saving operation mode, then as a response to the received first indication frame, the second device may send the first response frame to the first device within the transition timeout interval.

[0233] The conversion timeout period can be indicated by a conversion timeout field. The conversion timeout field can be included in a management frame sent by the second device. The management frame can be, for example, an association response frame. The encoding of the conversion timeout field can be shown in Table 8.

[0234] Table 8

[0235] It should be noted that, in Table 8, TU is a time measurement unit equal to 1024 microseconds (μs).

[0236] It should be noted that Table 8 is merely an example. For example, some of the contents in Table 8 can be implemented independently. For another example, the correspondence between the contents of each column in Table 8 can be adjusted.

[0237] In some embodiments, if a signal extension is present, the conversion timeout may begin at the end of the PPDU [+SigExt]. SigExt represents a signal extension. If a signal extension is not present, the conversion timeout may begin at the end of the PPDU. It should be noted that the PPDU may be sent by the second device and may carry an immediate acknowledgment (ACK) of the first indication frame sent to the first device.

[0238] In some embodiments, the capability adaptation and energy saving control field in the first response frame sent by the second device may be set to the same value as the capability adaptation and energy saving control field in the received first indication frame.

[0239] In some embodiments, when the first device is preparing to enable the capability adaptation energy-saving operation mode, the first device may enter or enable the capability adaptation energy-saving operation mode for operation when one of the following occurs: the transition timeout expires; before the transition timeout expires and immediately after sending an acknowledgment (ACK) in response to a first response frame received from the second device. The first device may enter the capability adaptation energy-saving operation mode according to whichever occurs first.

[0240] In some embodiments, when a first device supporting a capability adaptation energy-saving operation mode is about to shut down or disable its capability adaptation energy-saving operation mode, the first device transmits a first indication frame to a second device (e.g., an AP associated with the site). The capability adaptation energy-saving enable field carried therein is set to 0 (i.e., indicating that capability adaptation energy-saving is not enabled on the first device). After the second device no longer provides services for the first device that is about to be in the capability adaptation energy-saving operation mode, the second device sends a first response frame to the first device within a transition timeout period in response to the received first indication frame.

[0241] When the first device is preparing to shut down or disable its capability adaptation power saving mode, the first device may exit or disable the capability adaptation power saving mode when one of the following occurs: the transition timeout expires; or before the transition timeout expires and immediately after sending an acknowledgment in response to a first response frame received from the second device. The first device may exit the capability adaptation power saving mode, whichever occurs first.

[0242] The format of the first response frame may be the same as the format of the first indication frame. For example, the first indication frame and / or the first response frame may use the format of the capability adaptation energy saving operation mode notification frame.

[0243] The capability adaptation energy-saving operation mode notification frame may include an action field. The action field may include some or all of the fields shown in Table 9.

[0244] Table 9

[0245] It should be noted that the action field may include some or all of the fields in Table 9. The action field may also include other fields in addition to the fields shown in Table 9. In addition, the order in Table 9 is only an example, that is, the order in Table 9 can be adjusted.

[0246] The category field may be defined according to relevant technologies (eg, IEEE 802.11 standards).

[0247] The Protected UHR Action field may contain 1 byte. The Protected UHR Action field may immediately follow the Category field. The Protected UHR Action field may be used to distinguish the UHR Action frame format.

[0248] The Dialog Token field is set by the first device to a non-zero value of its choice and by its peer station (the second device) to a value copied from the corresponding received first indication frame.

[0249] FIG5 is a schematic diagram of the format of a capability adaptation energy-saving control field provided in an embodiment of the present application.

[0250] As shown in Figure 5, the Capability Adaptation Energy Saving Control field may include one or more of the following fields: Capability Adaptation Energy Saving Enable, Capability Adaptation Energy Saving Mode, Switching Mode, Default Low Capability Operation, Default High Capability Operation, Capability Adaptation Energy Saving Delay Parameter Control, Low Capability Operation Parameter Control, High Capability Operation Parameter Control, and Reserved. These fields are described above and are not repeated here.

[0251] FIG6 is a schematic diagram of the format of the capability adaptation energy-saving delay parameter field provided in an embodiment of the present application.

[0252] As shown in Figure 6, the Capability Adaptation Energy Saving Delay Parameter field may include one or more of the following fields: Capability Adaptation Energy Saving Filling Delay 1, Capability Adaptation Energy Saving Conversion Delay 1, Capability Adaptation Energy Saving Filling Delay 2, and Capability Adaptation Energy Saving Conversion Delay 2. The number of bytes occupied by the Capability Adaptation Energy Saving Filling Delay 2 field or the Capability Adaptation Energy Saving Filling Delay 2 field may be 0 or 1. For example, when the second capability is full capability, the number of bytes occupied by the Capability Adaptation Energy Saving Filling Delay 2 field or the Capability Adaptation Energy Saving Filling Delay 2 field may be 0, that is, one or more of these two fields may not exist.

[0253] FIG7A is a schematic diagram of the format of the low-capability operation parameter field provided in an embodiment of the present application.

[0254] As shown in FIG. 7A , the low capability operation parameter field may include one or more of the following fields: low capability mode operation bandwidth, received PPDU format supported by low capability mode, and MCS and SS parameter sets supported by low capability mode.

[0255] FIG7B is a schematic diagram of the format of the high-capability operation parameter field provided in an embodiment of the present application.

[0256] As shown in FIG. 7B , the high-capability operation parameter field may include one or more of the following fields: high-capability mode operation bandwidth, received PPDU format supported by the high-capability mode, and MCS and SS parameter sets supported by the high-capability mode.

[0257] Figure 8 is a format diagram of the MCS and SS parameter set fields supported by a low-capability mode or the MCS and SS parameter set fields supported by a high-capability mode provided in an embodiment of the present application.

[0258] As shown in Figure 8, the MCS and SS parameter set fields supported by the low-capability mode may include one or more of the following fields: MCS Map (BW = 20MHz), MCS Map (BW ≤ 40MHz), MCS Map (BW ≤ 80MHz), MCS Map (BW = 160MHz), and MCS Map (BW = 320MHz). The MCS and SS parameter set fields supported by the high-capability mode may include one or more of the following fields: MCS Map (BW = 20MHz), MCS Map (BW ≤ 40MHz), MCS Map (BW ≤ 80MHz), MCS Map (BW = 160MHz), and MCS Map (BW = 320MHz).

[0259] Figure 9 is an example diagram of the MCS Map field format. It should be noted that the MCS Map field shown in Figure 9 can be any of the fields described above: MCS Map (BW = 20 MHz), MCS Map (BW ≤ 40 MHz), MCS Map (BW ≤ 80 MHz), MCS Map (BW = 160 MHz), and MCS Map (BW = 320 MHz).

[0260] As shown in Figure 9, the MCS mapping field can include one or more of the following fields: Rx maximum NSS supporting MCS 0-9, Tx maximum NSS supporting MCS 0-9, Rx maximum NSS supporting MCS10–11, Tx maximum NSS supporting MCS10–11, Rx maximum NSS supporting MCS12–13, and Tx maximum NSS supporting MCS12–13.

[0261] For ease of understanding, this application is described below with reference to Examples 1 to 3.

[0262] Example 1

[0263] Embodiment 1 provides an example of a communication process when a STA is in a static capability adaptation energy-saving mode.

[0264] In static capability adaptation energy-saving mode, a station only operates in low capability mode. Specifically, when a non-AP station is in static capability adaptation energy-saving mode, it operates in low capability mode during frame exchanges initiated by the AP to which it is associated.

[0265] Figure 10 is an exemplary diagram of a wireless communication process provided by Embodiment 1. In Figure 10 , the first device may be a STA in a static CAA PS mode; and the second device may be an AP.

[0266] For STAs in static CAA PS mode, the STA can monitor and operate in low-capability operation mode. As shown in Figure 10, the STA can receive multiple MPDUs sent by the AP in low-capability mode and feedback Ack or block acknowledgement (BA).

[0267] Optionally, the indication information (e.g., enable information) of the static capability adaptation energy-saving mode and the operating parameter (e.g., transmission parameter) information corresponding to the low capability mode can be carried by a capability adaptation energy-saving operating mode notification frame sent when the capability adaptation energy-saving operating mode is enabled. In particular, compared with the operating mode setting performed by the operating mode notification or operating mode indication (OMI) process defined in the relevant technology, after the STA enters the static capability adaptation energy-saving mode, the low capability mode operating parameters carried by the capability adaptation energy-saving operating mode notification frame are adopted, and the transceiver capability corresponding to the low capability mode operating parameters is limited to the transceiver capability set by the operating mode notification or OMI process (if any). When the STA exits the static capability adaptation energy-saving mode, it can directly adopt the transceiver capability set by the original operating mode notification or OMI process (if any) without resetting the operating mode, thereby saving signaling overhead.

[0268] Example 2

[0269] Embodiment 2 provides an example of a communication process when a STA is in a dynamic capability adaptation energy-saving mode of default operation.

[0270] Figure 11 is an exemplary diagram of a wireless communication process provided by Embodiment 2. In Figure 11 , the first device may be a STA in a dynamic CAA PS mode; and the second device may be an AP.

[0271] As shown in Figure 11, when a STA operates in the default dynamic capability adaptation energy-saving mode, when its peer STA (a peer STA or an associated AP) sends a PPDU carrying an initial frame or a specific frame to the STA, the bandwidth capability, receive chain capability, spatial stream capability, data rate, MCS, PPDU format, etc. adopted by the STA during reception of the initial frame or specific indication frame (Figure 11 uses the QoS Null frame as an example) are constrained by the capability parameters corresponding to the low-capability operation mode. In some embodiments, the bandwidth capability, receive chain capability, spatial stream capability, data rate, MCS, PPDU format, etc. adopted by the STA are also constrained by the operation mode notification or the operation mode specified by the OMI process (if any).

[0272] After the initial frame or specific indication frame exchange, the STA can support and use the bandwidth capability, receive chain capability, spatial stream capability, data rate, MCS, and PPDU format corresponding to the high-capability operation mode until the end of the frame exchange sequence initiated by the initial frame exchange or the frame exchange in which the specific indication frame is exchanged. For a STA in dynamic capability adaptation energy-saving mode, the padding delay of the PPDU carrying the startup frame exchange or the specific indication frame sent by its peer STA (such as the AP to which the STA is associated) must be greater than or equal to the minimum padding delay indicated by the STA in the management frame (such as the association request frame or the Capability Adaptation Power Saving (CAA PS) operation mode notification frame) to ensure that the STA in dynamic capability adaptation energy-saving mode switches from the low-capability operation mode to the high-capability operation mode before the end of the PPDU transmission.

[0273] Optionally, the bandwidth capability, receive chain capability, spatial stream capability, data rate, MCS, and PPDU format parameters corresponding to the low-capability operation mode and the high-capability operation mode, respectively, may be indicated via a CAA PS operation mode notification frame. The minimum padding delay may be indicated by corresponding fields carried in an association request frame and / or a Capability Adaptation Power Saving (CAA PS) operation mode notification frame sent by the STA.

[0274] After the frame exchange sequence ends (the TXOP of the AP shown in Figure 11 ends), the STA in CAA PS mode switches back to the low-capability operation mode. In the low-capability operation mode, the STA is able to send or receive PPDU. The ability of the STA to send or receive PPDU depends on the constraints of the operation mode defined by the capability parameters and capability elements (if any, such as UHR Capabilities element) corresponding to the low-capability operation mode, the exchanged operation mode notification frame (if any), and the OM control (if any). In particular, the STA in the dynamic capability adaptation energy-saving mode switches back to the low-capability operation mode after the conversion delay at the end time of the frame exchange. The conversion delay can be indicated by the corresponding field carried by the association request frame and / or the capability adaptation energy-saving operation mode notification frame sent by the STA.

[0275] As shown in Figure 11, a STA in the CAA PS state monitors in the low-capability operation mode. When the STA receives and completes decoding of the QoS Null frame, it switches from the low-capability operation mode to the high-capability operation mode and maintains the high-capability operation mode in the current frame exchange sequence until the frame exchange ends. Then, it switches from the high-capability operation mode to the low-capability operation mode.

[0276] Example 3

[0277] Embodiment 3 provides an example of a communication process when a STA is in a dynamic capability adaptation energy-saving mode with mandatory control.

[0278] Figures 12 and 13 are diagrams illustrating an example of a wireless communication process provided in Embodiment 3. In Figures 12 and 13 , the first device may be a STA in a dynamic CAA PS mode; and the second device may be an AP.

[0279] When a STA operates in a dynamic capability adaptation energy-saving mode based on mandatory control, it monitors or transmits and receives data on the operating channel in a low-capability mode (i.e., using one or more of the following: low bandwidth, fewer receive chains, fewer spatial streams, lower data rate, lower MCS, or a PPDU format with low processing overhead) while awake. Upon receiving a specific frame addressed to it (such as an initial frame (including an initial control frame) or other defined frame for mode switching), the STA determines, based on the instructions in the specific frame, whether to switch to a high-capability (or full-capability) mode (i.e., using a higher bandwidth, more receive chains, more spatial streams, higher data rate, higher MCS, and a PPDU format with high processing overhead within the capabilities supported by the STA device). If switching is required, the STA switches to the high-capability (or full-capability) mode, and after the current frame exchange, the STA reverts to monitoring or transmitting and receiving in the low-capability mode. If switching is not required, the STA maintains the current low-capability mode. The specific frame must be transmitted using a PPDU that meets the STA's low-capability requirements. The STA's low-capability and / or high-capability modes can be pre-negotiated or determined by default. In particular, if a STA in dynamic capability adaptation power saving mode needs to switch, the padding delay of the PPDU carrying a specific frame sent by its peer STA must be greater than or equal to the minimum padding delay indicated by the STA in the management frame (such as an association request frame or a capability adaptation power saving (CAA PS) operation mode notification frame) to ensure that the STA in dynamic capability adaptation power saving mode switches from the low capability operation mode to the high capability operation mode before the end time of the PPDU transmission.

[0280] As shown in Figure 12, a STA in dynamic capability adaptation energy-saving mode listens in low-capability mode. When the AP obtains a TXOP, it sends an MPDU frame to the STA. If the MPDU carries no switching indication or no switching indication, the STA maintains the current low-capability mode after receiving the frame. When the AP obtains another TXOP and sends an MU RTS frame to the STA, explicitly or by default indicating a switch to high-capability mode, the STA switches to high-capability mode in the current frame exchange sequence after receiving the MU RTS frame and switches to high-capability mode for frame exchange. After the frame exchange is complete, the STA returns to low-capability mode.

[0281] As shown in Figure 13, a STA in dynamic capability adaptation energy-saving mode performs monitoring operations in low-capacity operation mode. When the AP obtains a TXOP, the AP sends an MPDU frame to the STA. If the MPDU frame carries no switching indication information or no switching indication, the STA maintains the current low-capacity operation mode after receiving the frame. When the AP obtains another TXOP, it sends a QoS Null frame to the STA, explicitly or by default indicating a switch to high-capacity operation mode. After receiving the QoS Null frame, the STA switches to high-capacity operation mode in the current frame exchange sequence for frame exchange, and returns to low-capacity operation mode after the frame exchange is completed.

[0282] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments, so for parts not described in detail, reference can be made to the above method embodiments.

[0283] FIG14 is a schematic structural diagram of a communication device 1400 provided in an embodiment of the present application. The communication device 1400 may be a first device and may include a receiving unit 1410.

[0284] The receiving unit 1410 is used to receive a first frame sent by the second device; wherein, the transmission and / or reception of the first frame meets the requirements of the first capability mode of the first device, and the first device can use the first capability mode to monitor and / or receive in the awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

[0285] In the embodiment of the present application, the above-mentioned communication device 1400 can be used to execute some or all of the method steps performed by the first device in the above-mentioned method embodiment. The communication device 1400 includes a unit or module for executing the method steps performed by the above-mentioned first device. The method flow has been described in detail in the above-mentioned embodiment. The modules in this embodiment have the same functions or perform the same steps, and will not be repeated here. However, those skilled in the art should know that the text description of the above-mentioned method can be introduced into this embodiment and corresponds to the modules in the communication device 1400.

[0286] In an optional embodiment, the receiving unit 1410 may be a transceiver 1630. The communication device 1400 may further include a processor 1610 and a memory 1620, as specifically shown in FIG16 .

[0287] FIG15 is a schematic structural diagram of a communication device 1500 provided in an embodiment of the present application. The communication device 1500 may be a second device and may include a sending unit 1510.

[0288] The sending unit 1510 can be used to send a first frame to the first device; wherein, the transmission and / or reception of the first frame meets the requirements of the first capability mode of the first device, and the first device can use the first capability mode to monitor and / or receive in the awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

[0289] In the embodiment of the present application, the above-mentioned communication device 1500 can be used to execute some or all of the method steps performed by the second device in the above-mentioned method embodiment. The communication device 1500 includes a unit or module for executing the method steps performed by the above-mentioned first device. The method flow has been described in detail in the above-mentioned embodiment. The modules in this embodiment have the same functions or perform the same steps, and will not be repeated here. However, those skilled in the art should know that the text description of the above-mentioned method can be introduced into this embodiment and corresponds to the modules in the communication device 1500.

[0290] In an optional embodiment, the sending unit 1510 may be a transceiver 1630. The communication device 1500 may further include a processor 1610 and a memory 1620, as specifically shown in FIG16 .

[0291] Figure 16 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 16 indicate that the unit or module is optional. Device 1600 can be used to implement the method described in the above method embodiment. Device 1600 can be a chip or a communication device.

[0292] The device 1600 may include one or more processors 1610. The processor 1610 may support the device 1600 to implement the method described in the above method embodiment. The processor 1610 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0293] The apparatus 1600 may further include one or more memories 1620. The memories 1620 store programs that can be executed by the processor 1610, causing the processor 1610 to perform the methods described in the above method embodiments. The memories 1620 may be independent of the processor 1610 or integrated into the processor 1610.

[0294] The apparatus 1600 may further include a transceiver 1630. The processor 1610 may communicate with other devices or chips via the transceiver 1630. For example, the processor 1610 may transmit and receive data with other devices or chips via the transceiver 1630.

[0295] The present invention also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the communication device provided in the present invention, and the program enables a computer to execute the method performed by the communication device in each embodiment of the present invention.

[0296] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the communication device provided in the present application, and the program causes a computer to execute the method performed by the communication device in each embodiment of the present application.

[0297] The embodiments of the present application also provide a computer program. The computer program can be applied to the communication device provided in the embodiments of the present application, and the computer program enables a computer to execute the method executed by the communication device in each embodiment of the present application.

[0298] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0299] In the embodiments of the present application, a "field" may also be referred to as a "field," a "subfield," or a "subfield." A field may occupy one or more bytes (byte / octet), or a field may occupy one or more bits (bit).

[0300] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0301] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0302] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0303] In the embodiments of the present application, "pre-defined" or "pre-configured" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in devices (e.g., including APs and STAs). The present application does not limit the specific implementation method. For example, pre-defined may refer to information defined in a protocol.

[0304] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0305] In the embodiments of this application, the term "include" can refer to direct inclusion or indirect inclusion. Alternatively, the term "include" in the embodiments of this application can be replaced with "indicates" or "is used to determine." For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B."

[0306] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0307] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include a WiFi protocol and related protocols used in future WiFi communication systems, and the present application does not limit this.

[0308] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0309] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0310] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0311] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0312] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The first device receives a first frame sent by the second device; In which, the transmission and / or reception of the first frame meets the requirements of the first capability mode of the first device, the first device can use the first capability mode to monitor and / or receive in the awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

2. The method according to claim 1, characterized in that When the capability adaptation energy-saving operation mode is enabled, the first device is capable of performing operations based on the first capability mode.

3. The method according to claim 1 or 2, characterized in that The first capability includes the capability to receive and / or send signals.

4. The method according to any one of claims 1 to 3, characterized in that Compared with the capabilities of the first device, the requirements of the first capability mode include one or more of the following: Lower operating bandwidth; Fewer receive chains; Fewer receiving spatial streams; Sending smaller spatial streams; The receiving data rate is lower; The sending data rate is lower; The modulation order corresponding to the sending modulation and coding scheme MCS is lower; The modulation order corresponding to the received MCS is lower; The reception and / or transmission processing capability requirements of the physical layer protocol data unit PPDU are lower.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: The first device sends a first indication frame to the second device; The first indication frame is related to the first capability mode.

6. The method according to claim 5, characterized in that The first indication frame includes enabling information, where the enabling information is used to indicate: The first device is capable of performing a function of operating based on the first capability mode; or The first device is capable of shutting down functionality of performing operations based on the first capability mode.

7. The method according to claim 5 or 6, characterized in that The first indication frame includes mode information, where the mode information is used to indicate: a first mode, in which the first device continues to operate based on the first capability mode; or, A second mode, in which the first device is capable of switching from the first capability mode to a second capability mode and performing operations based on the second capability mode.

8. The method according to any one of claims 5 to 7, characterized in that The first indication frame includes switching mode information; the switching mode information is used to indicate the following information: Whether the first device switches from the first capability mode to the second capability mode according to an indication of the first field in the first specific frame; and / or, Whether the first device switches from the first capability mode to the second capability mode according to a reception condition of the second specific frame.

9. The method according to any one of claims 5 to 8, characterized in that The first indication frame includes filling time information, where the filling time information is used to indicate: a filling duration in the first specific frame or the second specific frame; The first field in the first specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode, and the reception status of the second specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode.

10. The method according to claim 9, characterized in that The first indication frame includes first control information, and the first control information is used to indicate whether the first indication frame includes the filling time information.

11. The method according to claim 9 or 10, characterized in that The filling duration is: the minimum medium access control MAC filling delay of the first specific frame or the second specific frame.

12. The method according to any one of claims 8 to 11, characterized in that The first special frame includes: an initial frame or an initial control frame in a frame exchange process.

13. The method according to any one of claims 8 to 12, characterized in that The second special frame includes: an initial frame or an initial control frame in a frame exchange process.

14. The method according to any one of claims 8 to 13, characterized in that The first specific frame is further used to indicate whether the capability corresponding to the second capability mode is a capability possessed by the first device.

15. The method according to any one of claims 7 to 14, characterized in that The first indication frame includes first indication information, where the first indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the second capability mode when the first device performs an operation based on the second capability mode.

16. The method according to any one of claims 7 to 15, characterized in that The first indication frame includes switching delay information, where the switching delay information is used to indicate: a duration for the first device to switch from the first capability mode to the second capability mode; and / or, the duration for the first device to switch from the second capability mode to the first capability mode.

17. The method according to claim 16, characterized in that The first indication frame includes second control information, and the second control information is used to indicate whether the first indication frame includes the switching delay information.

18. The method according to any one of claims 7 to 17, characterized in that The first indication frame includes a second operating parameter, where the second operating parameter is used to indicate a transmission parameter corresponding to the second capability mode.

19. The method according to any one of claims 5 to 18, characterized in that The first indication frame includes a first operating parameter, where the first operating parameter is used to indicate a transmission parameter corresponding to the first capability mode.

20. The method according to claim 18 or 19, characterized in that The transmission parameters include one or more of the following: operating bandwidth, received PPDU format, MCS, number of received spatial streams, and number of transmitted spatial streams.

21. The method according to claim 20, characterized in that The transmission parameters include: The number of receive spatial streams supported by the first device for the first MCS in a PPDU conforming to the first PPDU format at the first operating bandwidth; and / or In a PPDU conforming to a first PPDU format at a first operating bandwidth, the first device is capable of supporting a number of transmit spatial streams for a first MCS.

22. The method according to any one of claims 5 to 21, characterized in that The first indication frame includes second indication information, The second indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the first capability mode when the first device performs an operation based on the first capability mode.

23. The method according to any one of claims 5 to 22, characterized in that The method further comprises: The first device receives a first response frame sent by the second device; The first response frame is used to respond to the first indication frame.

24. The method according to claim 23, wherein The first response frame is transmitted within a conversion timeout period.

25. The method according to claim 24, characterized in that The conversion timeout period is indicated by a management frame sent by the second device.

26. The method according to any one of claims 1 to 25, characterized in that The method further comprises: The first device switches from the first capability mode to a second capability mode and performs an operation based on the second capability mode.

27. The method according to claim 26, characterized in that Switching the first device from the first capability mode to the second capability mode includes: The first device switches from the first capability mode to the second capability mode according to an indication of a first field in a first specific frame; and / or, The first device switches from the first capability mode to the second capability mode according to a reception condition of the second specific frame.

28. The method according to claim 26 or 27, characterized in that The first device completes switching from the first capability mode to the second capability mode within a filling duration in the first specific frame or the second specific frame.

29. The method according to any one of claims 26 to 28, characterized in that The method further comprises: When a first condition is met, the first device switches from the second capability mode back to the first capability mode.

30. The method according to claim 29, wherein Within the first time interval, the first device completes switching from the second capability mode back to the first capability mode.

31. The method according to claim 29 or 30, characterized in that The first condition includes: the frame exchange process between the first device and the second device is completed.

32. The method according to claims 26-31, characterized in that The capabilities corresponding to the second capability mode meet the following requirements: is equal to the capability of the first device; or Lower than the capability of the first device and higher than the first capability.

33. The method according to any one of claims 1 to 32, characterized in that The capabilities of the first device include one or more of the following: the capability corresponding to the capability element sent by the first device; The capabilities corresponding to the operation mode defined by the operation mode notification frame; The OM control frame defines the capabilities corresponding to the operation mode.

34. A wireless communication method, characterized in that: include: The second device sends a first frame to the first device; In which, the transmission and / or reception of the first frame meets the requirements of the first capability mode of the first device, the first device can use the first capability mode to monitor and / or receive in the awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

35. The method according to claim 34, wherein When the capability adaptation energy-saving operation mode is enabled, the first device is capable of performing operations based on the first capability mode.

36. The method according to claim 34 or 35, characterized in that The first capability includes the capability to receive and / or send signals.

37. The method according to any one of claims 34 to 36, characterized in that Compared with the capabilities of the first device, the requirements of the first capability mode include one or more of the following: Lower operating bandwidth; Fewer receive chains; Fewer receiving spatial streams; Sending smaller spatial streams; The receiving data rate is lower; The sending data rate is lower; The modulation order corresponding to the sending modulation and coding scheme MCS is lower; The modulation order corresponding to the received MCS is lower; The reception and / or transmission processing capability requirements of the physical layer protocol data unit PPDU are lower.

38. The method according to any one of claims 34 to 37, wherein: The method further comprises: The second device receives the first indication frame sent by the first device; The first indication frame is related to the first capability mode.

39. The method according to claim 38, characterized in that The first indication frame includes enabling information, where the enabling information is used to indicate: The first device is capable of performing a function of operating based on the first capability mode; or The first device is capable of shutting down functionality of performing operations based on the first capability mode.

40. The method according to claim 38 or 39, characterized in that The first indication frame includes mode information, where the mode information is used to indicate: a first mode, in which the first device continues to operate based on the first capability mode; or, A second mode, in which the first device is capable of switching from the first capability mode to a second capability mode and performing operations based on the second capability mode.

41. The method according to any one of claims 38 to 40, characterized in that The first indication frame includes switching mode information; the switching mode information is used to indicate the following information: Whether the first device switches from the first capability mode to the second capability mode according to an indication of the first field in the first specific frame; and / or, Whether the first device switches from the first capability mode to the second capability mode according to a reception condition of the second specific frame.

42. The method according to any one of claims 38 to 41, wherein: The first indication frame includes filling time information, where the filling time information is used to indicate: a filling duration in the first specific frame or the second specific frame; The first field in the first specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode, and the reception status of the second specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode.

43. The method according to claim 42, characterized in that The first indication frame includes first control information, and the first control information is used to indicate whether the first indication frame includes the filling time information.

44. The method according to claim 42 or 43, characterized in that The filling duration is: the minimum medium access control MAC filling delay of the first specific frame or the second specific frame.

45. The method according to any one of claims 41 to 44, characterized in that The first special frame includes: an initial frame or an initial control frame in a frame exchange process.

46. ​​The method according to any one of claims 41 to 45, characterized in that The second special frame includes: an initial frame or an initial control frame in a frame exchange process.

47. The method according to any one of claims 41 to 45, characterized in that The first specific frame is further used to indicate whether the capability corresponding to the second capability mode is a capability possessed by the first device.

48. The method according to any one of claims 40 to 47, wherein: The first indication frame includes first indication information, where the first indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the second capability mode when the first device performs an operation based on the second capability mode.

49. The method according to any one of claims 40 to 48, wherein The first indication frame includes switching delay information, where the switching delay information is used to indicate: a duration for the first device to switch from the first capability mode to the second capability mode; and / or, the duration for the first device to switch from the second capability mode to the first capability mode.

50. The method according to claim 49, wherein The first indication frame includes second control information, and the second control information is used to indicate whether the first indication frame includes the switching delay information.

51. The method according to any one of claims 40 to 50, characterized in that The first indication frame includes a second operating parameter, where the second operating parameter is used to indicate a transmission parameter corresponding to the second capability mode.

52. The method according to any one of claims 38 to 51, wherein: The first indication frame includes a first operating parameter, where the first operating parameter is used to indicate a transmission parameter corresponding to the first capability mode.

53. The method according to claim 51 or 52, characterized in that The transmission parameters include one or more of the following: operating bandwidth, received PPDU format, MCS, number of received spatial streams, and number of transmitted spatial streams.

54. The method according to claim 53, wherein The transmission parameters include: The number of receive spatial streams supported by the first device for the first MCS in a PPDU conforming to the first PPDU format at the first operating bandwidth; and / or In a PPDU conforming to a first PPDU format at a first operating bandwidth, the first device is capable of supporting a number of transmit spatial streams for a first MCS.

55. The method according to any one of claims 38 to 54, wherein: The first indication frame includes second indication information, The second indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the first capability mode when the first device performs an operation based on the first capability mode.

56. The method according to any one of claims 38 to 55, wherein: The method further comprises: The second device sends a first response frame to the first device; The first response frame is used to respond to the first indication frame.

57. The method according to claim 56, characterized in that The first response frame is transmitted within a conversion timeout period.

58. The method according to claim 57, wherein The conversion timeout period is indicated by a management frame sent by the second device.

59. The method according to any one of claims 34 to 58, wherein The capabilities of the first device include one or more of the following: the capability corresponding to the capability element sent by the first device; The capabilities corresponding to the operation mode defined by the operation mode notification frame; The OM control frame defines the capabilities corresponding to the operation mode.

60. A communication device, characterized in that The communication device is a first device, and the communication device includes: a receiving unit, configured to receive a first frame sent by a second device; In which, the transmission and / or reception of the first frame meets the requirements of the first capability mode of the first device, the first device can use the first capability mode to monitor and / or receive in the awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

61. The communication device according to claim 60, characterized in that When the capability adaptation energy-saving operation mode is enabled, the first device is capable of performing operations based on the first capability mode.

62. The communication device according to claim 60 or 61, characterized in that The first capability includes the capability to receive and / or send signals.

63. The communication device according to any one of claims 60 to 62, characterized in that Compared with the capabilities of the first device, the requirements of the first capability mode include one or more of the following: Lower operating bandwidth; Fewer receive chains; Fewer receiving spatial streams; Sending smaller spatial streams; The receiving data rate is lower; The sending data rate is lower; The modulation order corresponding to the sending modulation and coding scheme MCS is lower; The modulation order corresponding to the received MCS is lower; The reception and / or transmission processing capability requirements of the physical layer protocol data unit PPDU are lower.

64. The communication device according to any one of claims 60 to 63, characterized in that The communication device is further configured to: Sending a first indication frame to the second device; The first indication frame is related to the first capability mode.

65. The communication device according to claim 64, characterized in that The first indication frame includes enabling information, where the enabling information is used to indicate: The first device is capable of performing a function of operating based on the first capability mode; or The first device is capable of shutting down functionality of performing operations based on the first capability mode.

66. The communication device according to claim 64 or 65, characterized in that The first indication frame includes mode information, where the mode information is used to indicate: a first mode, in which the first device continues to operate based on the first capability mode; or, A second mode, in which the first device is capable of switching from the first capability mode to a second capability mode and performing operations based on the second capability mode.

67. The communication device according to any one of claims 64 to 66, characterized in that The first indication frame includes switching mode information; the switching mode information is used to indicate the following information: Whether the first device switches from the first capability mode to the second capability mode according to an indication of the first field in the first specific frame; and / or, Whether the first device switches from the first capability mode to the second capability mode according to a reception condition of the second specific frame.

68. The communication device according to any one of claims 64 to 67, characterized in that The first indication frame includes filling time information, where the filling time information is used to indicate: a filling duration in the first specific frame or the second specific frame; The first field in the first specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode, and the reception status of the second specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode.

69. The communication device according to claim 68, characterized in that The first indication frame includes first control information, and the first control information is used to indicate whether the first indication frame includes the filling time information.

70. The communication device according to claim 68 or 69, characterized in that The filling duration is: the minimum medium access control MAC filling delay of the first specific frame or the second specific frame.

71. The communication device according to any one of claims 67 to 70, characterized in that The first special frame includes: an initial frame or an initial control frame in a frame exchange process.

72. The communication device according to any one of claims 67 to 71, characterized in that The second special frame includes: an initial frame or an initial control frame in a frame exchange process.

73. The communication device according to any one of claims 67 to 72, characterized in that The first specific frame is further used to indicate whether the capability corresponding to the second capability mode is a capability possessed by the first device.

74. The communication device according to any one of claims 66 to 73, characterized in that The first indication frame includes first indication information, where the first indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the second capability mode when the first device performs an operation based on the second capability mode.

75. The communication device according to any one of claims 66 to 74, characterized in that The first indication frame includes switching delay information, where the switching delay information is used to indicate: a duration for the first device to switch from the first capability mode to the second capability mode; and / or, the duration for the first device to switch from the second capability mode to the first capability mode.

76. The communication device according to claim 75, characterized in that The first indication frame includes second control information, and the second control information is used to indicate whether the first indication frame includes the switching delay information.

77. The communication device according to any one of claims 66 to 76, characterized in that The first indication frame includes a second operating parameter, where the second operating parameter is used to indicate a transmission parameter corresponding to the second capability mode.

78. The communication device according to any one of claims 64 to 77, characterized in that The first indication frame includes a first operating parameter, where the first operating parameter is used to indicate a transmission parameter corresponding to the first capability mode.

79. The communication device according to claim 77 or 78, characterized in that The transmission parameters include one or more of the following: operating bandwidth, received PPDU format, MCS, number of received spatial streams, and number of transmitted spatial streams.

80. The communication device according to claim 79, wherein The transmission parameters include: The number of receive spatial streams supported by the first device for the first MCS in a PPDU conforming to the first PPDU format at the first operating bandwidth; and / or In a PPDU conforming to a first PPDU format at a first operating bandwidth, the first device is capable of supporting a number of transmit spatial streams for a first MCS.

81. The communication device according to any one of claims 64 to 80, characterized in that The first indication frame includes second indication information, The second indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the first capability mode when the first device performs an operation based on the first capability mode.

82. The communication device according to any one of claims 64 to 81, characterized in that The communication device is further configured to: receiving a first response frame sent by the second device; The first response frame is used to respond to the first indication frame.

83. The communication device according to claim 82, characterized in that The first response frame is transmitted within a conversion timeout period.

84. The communication device according to claim 83, characterized in that The conversion timeout period is indicated by a management frame sent by the second device.

85. The communication device according to any one of claims 60 to 84, characterized in that The communication device is further configured to: Switch from the first capability mode to a second capability mode, and perform operations based on the second capability mode.

86. The communication device according to claim 85, characterized in that Switching the first device from the first capability mode to the second capability mode includes: The first device switches from the first capability mode to the second capability mode according to an indication of a first field in a first specific frame; and / or, The first device switches from the first capability mode to the second capability mode according to a reception condition of the second specific frame.

87. The communication device according to claim 85 or 86, characterized in that The first device completes switching from the first capability mode to the second capability mode within a filling duration in the first specific frame or the second specific frame.

88. The communication device according to any one of claims 85 to 87, characterized in that The communication device is further configured to: When a first condition is met, switching from the second capability mode back to the first capability mode.

89. The communication device according to claim 88, characterized in that Within the first time interval, the first device completes switching from the second capability mode back to the first capability mode.

90. The communication device according to claim 88 or 89, characterized in that The first condition includes: the frame exchange process between the first device and the second device is completed.

91. The communication device according to claims 85-90, characterized in that The capabilities corresponding to the second capability mode meet the following requirements: is equal to the capability of the first device; or Lower than the capability of the first device and higher than the first capability.

92. The communication device according to any one of claims 60 to 91, characterized in that The capabilities of the first device include one or more of the following: the capability corresponding to the capability element sent by the first device; The capabilities corresponding to the operation mode defined by the operation mode notification frame; The OM control frame defines the capabilities corresponding to the operation mode.

93. A communication device, characterized in that The communication device is a second device, and the communication device includes: A sending unit, configured to send a first frame to a first device; In which, the transmission and / or reception of the first frame meets the requirements of the first capability mode of the first device, the first device can use the first capability mode to monitor and / or receive in the awake state, and the first capability corresponding to the first capability mode is lower than the capability possessed by the first device.

94. The communication device according to claim 93, characterized in that When the capability adaptation energy-saving operation mode is enabled, the first device is capable of performing operations based on the first capability mode.

95. The communication device according to claim 93 or 94, characterized in that The first capability includes the capability to receive and / or send signals.

96. The communication device according to any one of claims 93 to 95, characterized in that Compared with the capabilities of the first device, the requirements of the first capability mode include one or more of the following: Lower operating bandwidth; Fewer receive chains; Fewer receiving spatial streams; Sending smaller spatial streams; The receiving data rate is lower; The sending data rate is lower; The modulation order corresponding to the sending modulation and coding scheme MCS is lower; The modulation order corresponding to the received MCS is lower; The reception and / or transmission processing capability requirements of the physical layer protocol data unit PPDU are lower.

97. The communication device according to any one of claims 93 to 96, characterized in that The communication device is further configured to: receiving a first indication frame sent by the first device; The first indication frame is related to the first capability mode.

98. The communication device according to claim 97, characterized in that The first indication frame includes enabling information, where the enabling information is used to indicate: The first device is capable of performing a function of operating based on the first capability mode; or The first device is capable of shutting down functionality of performing operations based on the first capability mode.

99. The communication device according to claim 97 or 98, characterized in that The first indication frame includes mode information, where the mode information is used to indicate: a first mode, in which the first device continues to operate based on the first capability mode; or, A second mode, in which the first device is capable of switching from the first capability mode to a second capability mode and performing operations based on the second capability mode.

100. The communication device according to any one of claims 97 to 99, characterized in that The first indication frame includes switching mode information; the switching mode information is used to indicate the following information: Whether the first device switches from the first capability mode to the second capability mode according to an indication of the first field in the first specific frame; and / or, Whether the first device switches from the first capability mode to the second capability mode according to a reception condition of the second specific frame.

101. The communication device according to any one of claims 97 to 99, characterized in that The first indication frame includes filling time information, where the filling time information is used to indicate: a filling duration in the first specific frame or the second specific frame; The first field in the first specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode, and the reception status of the second specific frame is used to instruct the first device to switch from the first capability mode to the second capability mode.

102. The communication device according to claim 101, wherein: The first indication frame includes first control information, and the first control information is used to indicate whether the first indication frame includes the filling time information.

103. The communication device according to claim 101 or 102, characterized in that The filling duration is: the minimum medium access control MAC filling delay of the first specific frame or the second specific frame.

104. The communication device according to any one of claims 100-103, characterized in that The first special frame includes: an initial frame or an initial control frame in a frame exchange process.

105. The communication device according to any one of claims 100-104, characterized in that The second special frame includes: an initial frame or an initial control frame in a frame exchange process.

106. The communication device according to any one of claims 100-105, characterized in that The first specific frame is further used to indicate whether the second capability mode is a capability possessed by the first device.

107. The communication device according to any one of claims 99 to 106, characterized in that The first indication frame includes first indication information, where the first indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the second capability mode when the first device performs an operation based on the second capability mode.

108. The communication device according to any one of claims 98 to 107, characterized in that The first indication frame includes switching delay information, where the switching delay information is used to indicate: a duration for the first device to switch from the first capability mode to the second capability mode; and / or, the duration for the first device to switch from the second capability mode to the first capability mode.

109. The communication device according to claim 108, characterized in that The first indication frame includes second control information, and the second control information is used to indicate whether the first indication frame includes the switching delay information.

110. The communication device according to any one of claims 99 to 109, characterized in that The first indication frame includes a second operating parameter, where the second operating parameter is used to indicate a transmission parameter corresponding to the second capability mode.

111. The communication device according to any one of claims 97 to 110, characterized in that The first indication frame includes a first operating parameter, where the first operating parameter is used to indicate a transmission parameter corresponding to the first capability mode.

112. The communication device according to claim 110 or 111, characterized in that The transmission parameters include one or more of the following: operating bandwidth, received PPDU format, MCS, number of received spatial streams, and number of transmitted spatial streams.

113. The communication device according to claim 112, characterized in that The transmission parameters include: The number of receive spatial streams supported by the first device for the first MCS in a PPDU conforming to the first PPDU format at the first operating bandwidth; and / or In a PPDU conforming to a first PPDU format at a first operating bandwidth, the first device is capable of supporting a number of transmit spatial streams for a first MCS.

114. The communication device according to any one of claims 97 to 113, characterized in that The first indication frame includes second indication information, The second indication information is used to indicate whether the first device adopts default transmission parameters corresponding to the first capability mode when the first device performs an operation based on the first capability mode.

115. The communication device according to any one of claims 97 to 114, characterized in that The communication device is further configured to: Sending a first response frame to the first device; The first response frame is used to respond to the first indication frame.

116. The communication device according to claim 115, characterized in that The first response frame is transmitted within a conversion timeout period.

117. The communication device according to claim 116, characterized in that The conversion timeout period is indicated by a management frame sent by the second device.

118. The communication device according to any one of claims 93 to 117, characterized in that The capabilities of the first device include one or more of the following: the capability corresponding to the capability element sent by the first device; The capabilities corresponding to the operation mode defined by the operation mode notification frame; The OM control frame defines the capabilities corresponding to the operation mode.

119. A communication device, characterized in that The device comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the communication device executes the method according to any one of claims 1 to 59.

120. A device, characterized in that The device comprises a processor configured to call a program from a memory so as to cause the device to execute the method according to any one of claims 1 to 59.

121. A chip, characterized in that: The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes a method according to any one of claims 1 to 59.

122. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 59.

123. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 59.

124. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 59.

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