Communication method, communication device, and communication system
By combining the TWT mechanism with a dynamic power-saving mode, the working capability mode of the communication device is dynamically adjusted, which solves the incompatibility problem between the Wi-Fi power-saving mechanism and the TWT mechanism, and achieves efficient communication and low power consumption during the TWT service cycle.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2024-12-18
- Publication Date
- 2026-06-25
AI Technical Summary
Existing Wi-Fi power-saving mechanisms are incompatible with Target Wake Time (TWT) mechanisms and dynamic power-saving modes, resulting in low transmission efficiency and increased latency for communication devices during TWT service cycles, with the impact being more pronounced during periodic TWT service cycles.
By combining the TWT mechanism with a dynamic power-saving mode, the dynamic power-saving mode can be maintained or turned off based on the device response results, thereby dynamically adjusting the working capacity mode of the communication device to ensure efficient communication within the TWT service cycle.
While reducing device power consumption, it improves communication and transmission efficiency during the TWT service cycle and reduces transmission latency.
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Figure CN2024140433_25062026_PF_FP_ABST
Abstract
Description
Communication methods, communication equipment and communication systems Technical Field
[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device and communication system. Background Technology
[0002] In Wi-Fi technology, the Target Wake Time (TWT) mechanism has been proposed to support energy-efficient operation of large-scale Internet of Things (IoT) devices.
[0003] Currently, research on next-generation Wi-Fi technologies, such as Ultra High Reliability (UHR), aims to improve the reliability of Wireless Local Area Networks (WLAN) connections, reduce latency, enhance manageability, increase throughput at different signal-to-noise ratio (SNR) levels, and reduce device-level power consumption. Based on this, further enhancements to power-saving mechanisms are needed to ensure that communication under the TWT (Total Power Wrapper) mechanism meets UHR requirements. Summary of the Invention
[0004] This disclosure provides a communication method, communication device, and communication system to further enhance power-saving mechanisms.
[0005] In a first aspect, embodiments of this disclosure provide a communication method executed by a first device, the method comprising:
[0006] Send a first radio frame to the second device associated with it; wherein the first radio frame is used to establish or negotiate the target wake-up time (TWT) schedule; the first device has enabled dynamic power saving mode;
[0007] Based on the response of the second device to the first wireless frame, the dynamic power saving mode is maintained or turned off.
[0008] Secondly, this disclosure also provides a communication method executed by a second device, the method comprising:
[0009] Receives a first radio frame sent by a first device associated with it; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode;
[0010] A second radio frame is determined and sent to the first device; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling.
[0011] Thirdly, embodiments of this disclosure also provide a communication device for performing the communication method described in the first or second aspect.
[0012] Fourthly, embodiments of this disclosure also provide a communication device, including:
[0013] One or more processors;
[0014] The communication device is used to execute the communication method described in the first or second aspect of the embodiments of this disclosure.
[0015] Fifthly, embodiments of this disclosure also provide a communication system, including a first device and a second device;
[0016] The first device is configured to implement the communication method described in the first aspect, and the second device is configured to implement the communication method described in the second aspect.
[0017] Sixthly, embodiments of this disclosure also provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in the first aspect of this disclosure, or to perform the communication method as described in the second aspect of this disclosure.
[0018] In a seventh aspect, embodiments of this disclosure also provide a program product, including at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, they implement the communication method described in the first aspect or the communication method described in the second aspect.
[0019] In this embodiment, a first device with dynamic power saving mode enabled sends a first radio frame to a second device associated with it; wherein the first radio frame is used to establish or negotiate TWT scheduling; based on the response of the second device to the first radio frame, the dynamic power saving mode is maintained or disabled; thus, a communication mechanism combining TWT mechanism and dynamic power saving mode can be provided. By combining TWT mechanism and dynamic power saving mode, the communication mode of the first device is determined, so as to reduce the power consumption of the first device while being able to communicate with the second device within the TWT SP (service period), thereby improving communication efficiency.
[0020] Additional aspects and advantages of embodiments of this disclosure will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this disclosure. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.
[0022] Figure 1 is a schematic diagram of the architecture of the communication system provided in an embodiment of this disclosure;
[0023] Figure 2 is one of the interactive schematic diagrams of the communication method provided in the embodiments of this disclosure;
[0024] Figure 3 is a second interactive schematic diagram of the communication method provided in the embodiments of this disclosure;
[0025] Figure 4 is the third interactive schematic diagram of the communication method provided in the embodiments of this disclosure;
[0026] Figure 5 is a fourth interactive schematic diagram of the communication method provided in the embodiments of this disclosure;
[0027] Figure 6 is the fifth interactive schematic diagram of the communication method provided in the embodiments of this disclosure;
[0028] Figure 7 is a sixth interactive schematic diagram of the communication method provided in this embodiment of the present disclosure;
[0029] Figure 8 is the seventh interactive schematic diagram of the communication method provided in the embodiments of this disclosure;
[0030] Figure 9 is an eighth interactive schematic diagram of the communication method provided in the embodiments of this disclosure;
[0031] Figure 10 is a ninth interactive schematic diagram of the communication method provided in the embodiments of this disclosure;
[0032] Figure 11 is a flowchart illustrating one of the communication methods provided in this embodiment of the present disclosure;
[0033] Figure 12 is a second schematic flowchart of the communication method provided in an embodiment of this disclosure;
[0034] Figure 13 is a schematic diagram of the structure of the first device proposed in an embodiment of this disclosure;
[0035] Figure 14 is a schematic diagram of the structure of the second device proposed in an embodiment of this disclosure;
[0036] Figure 15 is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure;
[0037] Figure 16 is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation
[0038] This disclosure presents a communication method, communication device, and communication system.
[0039] In a first aspect, embodiments of this disclosure provide a communication method executed by a first device, the method comprising:
[0040] Send a first radio frame to the second device associated with it; wherein the first radio frame is used to establish or negotiate the target wake-up time (TWT) schedule; the first device has enabled dynamic power saving mode;
[0041] Based on the response of the second device to the first wireless frame, the dynamic power saving mode is maintained or turned off.
[0042] In the above embodiments, a communication mechanism combining the TWT mechanism and dynamic power saving mode is provided. By combining the TWT mechanism and dynamic power saving mode, the communication mode of the first device is determined, so as to reduce the power consumption of the first device while being able to communicate with the second device within the TWT SP, thereby improving communication efficiency.
[0043] In conjunction with some embodiments of the first aspect, in some embodiments, maintaining or disabling the dynamic power-saving mode based on the response result of the second device to the first wireless frame includes at least one of the following:
[0044] In the absence of a second wireless frame sent by the second device, the dynamic power saving mode is maintained; wherein the second wireless frame is used to respond to the first wireless frame;
[0045] Upon receiving the second radio frame, and the second radio frame indicating that the second device does not accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is maintained.
[0046] Upon receiving the second radio frame, and the second radio frame instructing the second device to accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is turned off.
[0047] In the above embodiments, if the second device does not respond to the first radio frame (the first device does not receive the second radio frame sent by the second device) or the second device does not accept the establishment or negotiation of TWT scheduling, maintaining the dynamic power saving mode can further reduce the power consumption of the first device; if the second device accepts the establishment or negotiation of TWT scheduling, disabling the dynamic power saving mode can enable communication with the second device within the TWT SP, thereby improving communication efficiency.
[0048] In conjunction with some embodiments of the first aspect, in some embodiments, disabling the dynamic power saving mode includes at least one of the following:
[0049] Receive a second wireless frame sent by the second device; wherein the second wireless frame indicates that the second device accepts the establishment or negotiation of TWT scheduling; send a third wireless frame to the second device and disable dynamic power saving mode; wherein the third wireless frame is an acknowledgment frame of the second wireless frame;
[0050] The system receives a second radio frame sent by the second device; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling; determines a fourth radio frame and disables dynamic power saving mode; wherein the fourth radio frame includes first identification information, the first identification information indicating that the first device disables dynamic power saving mode; and sends the fourth radio frame to the second device.
[0051] In the above embodiments, the dynamic power saving mode can be turned off implicitly (by sending a third wireless frame to the second device) or explicitly (by sending the fourth wireless frame to the second device).
[0052] In conjunction with some embodiments of the first aspect, in some embodiments, before sending the first radio frame to the associated second device, the method further includes:
[0053] A fifth wireless frame is determined; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode;
[0054] Send a fifth wireless frame to the second device.
[0055] In the above embodiments, the first device can report to the second device whether the first device supports dynamic power saving mode through the second identification information in the fifth wireless frame.
[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0057] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0058] In the above embodiments, the second identification information can be set to different parameter values to identify whether the first device supports dynamic power saving mode.
[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the fifth wireless frame further includes third identification information, which identifies that the first device enables or disables dynamic power saving mode.
[0060] In the above embodiments, the first device can also report to the second device whether the first device enables or disables the dynamic power saving mode through the third identification information in the fifth wireless frame.
[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0062] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0063] In the above embodiments, the third identification information can be set to different parameter values to identify whether the first device enables or disables the dynamic power saving mode.
[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic power-saving mode.
[0065] In the above embodiments, the first device can also report the communication parameters of the first device in dynamic power saving mode to the second device through the fourth identification information in the fifth wireless frame.
[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the dynamic power-saving mode includes switching between a first capability communication mode and a second capability communication mode;
[0067] The first capability communication mode and the second capability communication mode include at least one identical communication parameter, wherein the parameter value of the communication parameter is smaller in the first capability communication mode than in the second capability communication mode.
[0068] In the above embodiments, the dynamic power saving mode includes switching between a first capability communication mode with lower communication parameter values and a second capability communication mode with lower communication parameter values. In this way, when the communication device is in the first capability communication mode, the power consumption of the first device can be reduced.
[0069] Secondly, embodiments of this disclosure provide a communication method, the method comprising:
[0070] Performed by a second device, the method includes:
[0071] Receives a first radio frame sent by a first device associated with it; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode;
[0072] A second radio frame is determined and sent to the first device; wherein the second radio frame indicates whether the second device accepts the establishment or negotiation of TWT scheduling.
[0073] In the above embodiments, a communication mechanism combining the TWT mechanism and dynamic power saving mode is provided. By combining the TWT mechanism and dynamic power saving mode, the two communicating parties can further determine the communication mode of the first device, thereby reducing the power consumption of the first device while enabling communication with the second device within the TWT SP, thus improving communication efficiency.
[0074] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:
[0075] The system receives a third wireless frame sent by the first device and determines that the first device has turned off the dynamic power saving mode; wherein the third wireless frame is an acknowledgment frame of the second wireless frame.
[0076] The system receives a fourth wireless frame sent by the first device and determines that the first device has disabled the dynamic power saving mode; wherein the fourth wireless frame includes first identification information, which indicates that the first device has disabled the dynamic power saving mode; the system then sends the fourth wireless frame to the second device.
[0077] In conjunction with some embodiments of the second aspect, in some embodiments, before receiving the first radio frame transmitted by the associated first device, the method further includes:
[0078] The first device receives a fifth wireless frame sent by the first device; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
[0079] In conjunction with some embodiments of the second aspect, in some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0080] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0081] In conjunction with some embodiments of the second aspect, in some embodiments, the fifth wireless frame further includes third identification information, which identifies that the first device enables or disables dynamic power saving mode.
[0082] In conjunction with some embodiments of the second aspect, in some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0083] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0084] In conjunction with some embodiments of the second aspect, in some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic mode.
[0085] In conjunction with some embodiments of the second aspect, in some embodiments, the dynamic power-saving mode includes switching between a first capability communication mode and a second capability communication mode;
[0086] The first capability communication mode and the second capability communication mode include at least one identical communication parameter, wherein the parameter value of the communication parameter is smaller in the first capability communication mode than in the second capability communication mode.
[0087] Thirdly, embodiments of this disclosure also provide a communication device, which is used to perform optional implementations of the first aspect or the second aspect.
[0088] Fourthly, embodiments of this disclosure also provide a communication device, including:
[0089] One or more processors;
[0090] The communication device is used to execute either the optional implementation of the first aspect or the optional implementation of the second aspect.
[0091] Fifthly, embodiments of this disclosure also provide a communication system, including a first device and a second device; wherein the first device is configured to perform the optional implementation as described in the first aspect, and the second device is configured to perform the optional implementation as described in the second aspect.
[0092] In a sixth aspect, embodiments of this disclosure also provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the optional implementation described in the first or second aspect.
[0093] In a seventh aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementation of the first or second aspect.
[0094] Eighthly, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect.
[0095] Ninthly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described according to an optional implementation of the first or second aspect above.
[0096] It is understood that the aforementioned first device, communication system, storage medium, program product, computer program, chip, or chip system are all used to perform the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.
[0097] This disclosure provides a communication method, a first device, and a communication system. In some embodiments, the terms "communication method" and "signal transmission method," "wireless frame transmission method," etc., can be used interchangeably, as can the terms "information processing system" and "communication system."
[0098] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
[0099] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.
[0100] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.
[0101] In the embodiments disclosed herein, "multiple" refers to two or more.
[0102] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.
[0103] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.
[0104] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.
[0105] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.
[0106] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0107] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.
[0108] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.
[0109] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.
[0110] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.
[0111] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).
[0112] In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to inter-terminal communication (e.g., "side"). For example, uplink channel and downlink channel can be replaced with side channel, and uplink link and downlink link can be replaced with side link.
[0113] In some embodiments, "link" can mean "connection" or "link"; in various embodiments, "connection" and "link" can be used interchangeably.
[0114] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.
[0115] In some embodiments, data, information, etc., may be obtained with the user's consent.
[0116] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.
[0117] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
[0118] As shown in Figure 1, the communication system 100 includes a first device 101 and a second device 102.
[0119] In some embodiments, the first device may be a station (STA) or an access point (AP). The second device may be an access point or a station. Optionally, the first device may be associated with the second device.
[0120] Alternatively, the first device may also be referred to as the first communication device, and the second device may also be referred to as the second communication device.
[0121] In some embodiments, the STA can be a standalone STA or an accessory STA to a site device (non-AP MLD, or simply multi-link site device; AP MLD stands for AP Multi-Link Device, an access point device that supports multi-link communication, or simply multi-link access point device), without limitation. The AP can be a standalone AP or an accessory AP to an access point device (AP MLD) that supports multi-link communication, without limitation.
[0122] In some embodiments, the site equipment includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports Wi-Fi communication. Optionally, the wireless communication terminal may be at least one of, but is not limited to, a mobile phone, a wearable device, an IoT device that supports Wi-Fi communication, a car with Wi-Fi communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home.
[0123] Specifically, the site equipment can be a terminal device or network device with a Wi-Fi chip. Optionally, the site equipment can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next-generation 802.11 protocol, but is not limited to these.
[0124] In some embodiments, the access point device can be an access point for mobile terminals to access a wired network. An AP acts as a bridge connecting wired and wireless networks, its main function being to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, an AP can be a terminal device or network device with a Wi-Fi chip. Optionally, the AP can support various WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next-generation 802.11 protocol, but is not limited to these.
[0125] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.
[0126] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.
[0127] The embodiments disclosed herein can be applied to Wireless Local Area Networks (WLANs), such as LANs using the 802.11 series of protocols. In a WLAN, a Basic Service Set (BSS) is a fundamental component. An BSS network consists of site devices with some association within a specific coverage area. One type of association is where sites communicate directly with each other in a self-organizing network; this is called an Independent Basic Service Set (IBSS). Another more common scenario is that in a BSS network, there is only one central site dedicated to managing the BSS, called an Access Point (AP) device, while other sites in the BSS network that are not APs are called terminals, also known as non-AP STAs. APs and non-AP STAs are collectively referred to as STAs. When describing STAs, it is not necessary to distinguish between APs and non-AP STAs. Within the same BSS network, due to distance, transmission power, etc., a STA cannot detect other STAs that are far away; they are each other's hidden nodes.
[0128] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, the method includes:
[0129] Step 201: The first device sends a first radio frame to the associated second device; wherein the first radio frame is used to establish or negotiate TWT (Target Wake Time) scheduling; the first device has enabled dynamic power saving mode. Accordingly, the second device receives the first radio frame sent by the first device.
[0130] In some embodiments, the first device may be a non-AP STA and the second device may be an AP; or the first device may be an AP and the second device may be a non-AP STA.
[0131] Next-generation Wi-Fi technologies, such as Ultra High Reliability (UHR), aim to improve the reliability of wireless LAN connections, reduce latency, and lower device-level power consumption. Since most devices supporting the UHR protocol are multi-link communication devices (MLD devices), power-saving mechanisms need further enhancement when UHR APs (Access Points) and UHR STAs (Standard Stations) use multi-link communication for data transmission.
[0132] Currently, to further enhance power saving mechanisms, a dynamic power saving mode has been proposed. For example, Mobile APs (Mobile Access Points) or non-AP STAs can operate in dynamic power saving mode. When a communication device operates in a lower capability mode, its supported bandwidth is 20MHz, and it only supports single spatial stream and low-rate MCS (Modulation and Coding Scheme) for transmission and reception, and only supports receiving specific control frames or management frames. Furthermore, a communication device operating in low capability mode can switch to a higher capability mode to complete frame exchange only after receiving a radio frame sent by its associated communication device (hereinafter referred to as "associated device"). This radio frame is used to instruct the receiving end to switch from low capability mode to high capability mode in dynamic power saving mode; for example, this radio frame can be an initial control frame, abbreviated as ICF frame; where the initial control frame can be a MU-RTS frame (multiple user request to send). After the current TXOP of the received trigger frame ends, the communication device will switch back to a lower capability mode within a certain period of time in order to maintain a working state with lower communication parameter values and reduce device power consumption.
[0133] The above processing method can effectively reduce the energy consumption of communication devices to a certain extent while maintaining dynamic power-saving mode, but many problems still exist. For example, when the communication device enables dynamic power-saving mode, it can only switch to a higher-capacity communication mode and participate in frame exchange after receiving a trigger frame sent by its associated communication device.
[0134] In some embodiments, the TWT (Target Wake Time) mechanism is an energy-saving technology designed to further reduce Wi-Fi network power consumption. Specifically, in TWT technology, the TWT scheduling AP and the TWT scheduled device (e.g., the TWT Scheduled STA) can pre-establish a TWT schedule (i.e., a target wake time schedule), or the TWT requesting device (e.g., the TWT Request STA) and the TWT responding device (e.g., the TWT Response STA) can pre-establish a TWT schedule. Through the TWT schedule, the TWT SP (Target Wake Time Service Period) is negotiated to determine the sleep period, wake-up period, and wake-up frequency of the communication device. Thus, the communication device remains active and communicates during the service period, and sleeps (i.e., remains in a doze state) outside the service period to achieve energy saving. The TWT Schedule includes, but is not limited to, Individual TWT Schedule, Broadcast TWT Schedule, and Restricted TWT Schedule.
[0135] Furthermore, TWT technology enables communication devices to provide higher-quality services to multiple associated devices, minimizing contention or overlap, and improving spectrum efficiency while reducing Wi-Fi network power consumption. For example, a TWT Scheduling AP broadcasts a TWT schedule, and a TWT Scheduled STA negotiates with the TWT Scheduling AP and becomes a member of a TWT scheduler. After the TWT schedule is negotiated, the Scheduled STA and the TWT Scheduling AP are awakened or in an active state, and frame exchange occurs within the corresponding TWT SP.
[0136] Under the current TWT mechanism, the communication device remains in a Doze state outside of the negotiated TWT SP and wakes up before the TWT SP begins. Within the TWT SP, the TWT Scheduling AP and the TWT Scheduled STA exchange frames. Specifically, within a Trigger-enabled TWT SP, the TWT Scheduled STA exchanges frames with the TWT Scheduling AP after receiving a Trigger frame from the TWT Scheduling AP. If combined with the aforementioned dynamic power-saving mode, and the dynamic power-saving mode is continuously enabled during the negotiation of the TWT Schedule between the communication device and the associated device, then the communication device cannot exchange frames with the associated device until it receives the aforementioned initial control frame (i.e., the radio frame instructing the receiver to switch from low-capability mode to high-capability mode in dynamic power-saving mode) sent by the associated device.
[0137] Therefore, it is evident that, on the one hand, dynamic power-saving mode is not compatible with the current TWT mechanism; on the other hand, if the TWT Scheduled / Requesting STA continuously maintains dynamic power-saving mode within a TWT SP, the TWT Scheduling AP / TWT Response STA needs to send the aforementioned initial control frame before sending the Trigger frame, so that the non-AP STA can switch from low-capacity mode to high-capacity mode. Since the switch from low-capacity mode to high-capacity mode requires a certain switching time in dynamic power-saving mode, it reduces transmission efficiency and increases transmission latency within the TWT SP. This impact is particularly pronounced for periodic TWT SPs or periodic R-TWT SPs.
[0138] Therefore, the current power-saving mechanism needs to be enhanced to be compatible with the TWT mechanism and the dynamic power-saving mechanism, so as to reduce equipment energy consumption while maximizing the transmission efficiency and reducing transmission latency within the TWT SP.
[0139] Optionally, in this embodiment of the disclosure, before the first device sends the first radio frame to the second device, the second device may broadcast a TWT schedule via a sixth radio frame. The first device may establish or negotiate a TWT schedule via a TWT setup frame to join the TWT schedule and become a member of the TWT.
[0140] The sixth radio frame may include, but is not limited to, a Beacon frame or a Probe response frame, wherein the Probe response frame may be an unsolicited Probe response frame. The first radio frame may include the aforementioned TWT establishment frame.
[0141] In some embodiments, the dynamic power-saving mode includes switching between a first capability communication mode and a second capability communication mode;
[0142] The first capability communication mode and the second capability communication mode include at least one identical communication parameter, wherein the parameter value of the communication parameter is smaller in the first capability communication mode than in the second capability communication mode.
[0143] Optionally, switching can be performed between a first capability communication mode and a second capability communication mode, i.e., switching from the first capability communication mode to the second capability communication mode and switching from the second capability communication mode to the first capability communication mode.
[0144] Optionally, the first capability communication mode may also be referred to as a first power mode, low-energy communication mode, low-capability communication mode, low-power communication mode, lower capability communication mode, eavesdropping mode, or low-power communication phase, etc., and this disclosure does not limit the name. The second capability communication mode may also be referred to as a high-power mode, high-energy communication mode, high-capability communication mode, high-power communication mode, higher capability communication mode, or high-power communication phase, etc., and this disclosure does not limit the name.
[0145] Optionally, in order to be compatible with the current PS (power saving) mode, the first capability communication mode may include the Doze State (also known as the hibernation state) corresponding to the PS mode, and the second capability communication mode may include the Awake State (wake-up state) or Active Mode (active mode) corresponding to the PS mode. This disclosure embodiment does not specifically limit this.
[0146] Optionally, the parameter value of the communication parameter is less than that of the second capability communication mode in the first capability communication mode, which can mean that the communication capability of the communication device in the first capability communication mode is weaker than that in the second capability communication mode.
[0147] Optionally, the communication parameters corresponding to the first capability communication mode or the second capability communication mode may include, but are not limited to, channel bandwidth (BW), supported MCS methods, NSS (number of spatial streams), transmission rate, etc.
[0148] Optionally, in the first capability communication mode, the device supports a channel bandwidth of 20MHz (Mega Hertz) (i.e., BW = 20MHz), a single SS (NSS = 1), and a maximum MCS index value of 5, meaning the MCS index value can be any value from 0 to 5, for example, an MCS index value of 5. In the second capability communication mode, the device supports a channel bandwidth greater than or equal to 20MHz, for example, any one or more of 40MHz, 80MHz, 160MHz, or 320MHz, a single SS (SS) greater than or equal to 2, an MCS index greater than or equal to 5, etc. Specific parameter values can be determined based on the communication parameter values supported by the second device 102 within the SP of the TWT Agreement.
[0149] Optionally, in one communication mode, the MCS information supported by the device is associated with multiple communication parameters. For example, the communication parameters associated with the MCS information may include, but are not limited to: NSS, the modulation scheme supported by each spatial stream, coding rate, BW, device transmission resource type [e.g., Resource Unit RU, Multiple Resource Unit (MRU), Distributed Resource Unit (dRU), UEQM, etc.], whether the device supports BW punctured channel pattern, and at least one of the punctured channel density supported by the device.
[0150] For example, regarding each communication parameter, does the device support its specific parameter values? For instance, for NSS, the maximum NSS supported by the device could be 4, 8, or 16. Taking modulation schemes as an example, the modulation schemes supported by a spatial stream supported by the device could be at least one of Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), Quadrature Amplitude Modulation (QAM), 64-QAM, 256-QAM, 1024-QAM, and 4096-QAM. Taking coding rate as an example, the coding rate supported by a spatial stream supported by the device could be 1 / 2, 2 / 3, 3 / 4, or 5 / 6. Taking BW as an example, the BW supported by the device could be at least one of 20MHz, 40MHz, 80MHz, 160MHz, and 320MHz. When the device supports BW punch channel mode, the punch channel density supported by the device may be at least one of 20MHz, 40MHz, 80MHz, 160MHz, and 320MHz.
[0151] For a given device, the MCS information it supports can be found in Table 1.
[0152] Table 1
[0153] As shown in Table 1, n, n+1, n+2, n+3, n+4, etc., are merely examples used to distinguish the differences between each row. Specific values need to be adjusted according to the actual situation. In each row, the NSS, modulation, coding rate, transmission resource type, BW, whether puncturing is supported, and puncturing channel density corresponding to the device can be arbitrarily combined, and the corresponding MCS index value will differ under different combinations. For example, in the second row, the MCS index values corresponding to different combinations can specifically be t, t+1, t+2, ..., etc.
[0154] Step 202: The first device maintains or disables the dynamic power saving mode based on the response result of the second device to the first wireless frame.
[0155] Optionally, in a narrow sense, the response result of the second device to the first radio frame may include: the second device responded to the first radio frame, and the specific response content is whether the second device accepts the establishment or negotiation of TWT scheduling; in a broad sense, the response result of the second device to the first radio frame may include: whether the second device responded to the first radio frame, and if the second device responded to the first radio frame, the specific content of the response (i.e., whether the second device accepts the establishment or negotiation of TWT scheduling). This disclosure does not limit the specific response result; regardless of the perspective from which the response is made, it is within the protection scope of this disclosure.
[0156] Optionally, in some embodiments, referring to FIG3, after the second device receives the first wireless frame sent by the first device, it may further perform the following steps:
[0157] Step 301, the second device determines the second radio frame; wherein the second radio frame indicates whether the second device accepts the establishment or negotiation of TWT scheduling.
[0158] In step 302, the second device sends a second radio frame to the first device. Correspondingly, the first device receives the second radio frame sent by the second device.
[0159] Optionally, the second wireless frame may include, but is not limited to, a TWT Setup frame, wherein the Request TWT field in the TWT Setup frame is set to 0 and includes a TWT Setup Command field.
[0160] Specifically, when the TWT Setup Command field is set to Reject TWT (e.g., the TWT Setup Command field is set to parameter value 7), the second device is instructed not to accept the establishment or negotiation of TWT scheduling; when the TWT Setup Command field is set to Accept TWT (e.g., the TWT Setup Command field is set to parameter value 4) or Alternate TWT (e.g., the TWT Setup Command field is set to parameter value 5), the second device is instructed not to accept the establishment or negotiation of TWT scheduling.
[0161] In some embodiments, maintaining or disabling the dynamic power-saving mode based on the response of the second device to the first wireless frame includes at least one of the following:
[0162] If the first device does not receive the second wireless frame sent by the second device, the dynamic power saving mode is maintained; wherein the second wireless frame is used to respond to the first wireless frame;
[0163] If the first device receives the second radio frame and the second radio frame indicates that the second device does not accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is maintained.
[0164] When the first device receives the second radio frame, and the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling, the dynamic power saving mode is turned off.
[0165] Optionally, in this embodiment of the disclosure, the response duration of the second device to the first wireless frame can be set. This embodiment of the disclosure does not limit the specific duration of the response duration and can set it according to the actual situation.
[0166] Optionally, if the first device does not receive the second wireless frame sent by the second device within the response time, the first device may be considered as the second device not responding to the first wireless frame; if the first device receives the second wireless frame sent by the second device within the response time, the first device may be considered as the second device responding to the first wireless frame.
[0167] Optionally, the first device may disable the dynamic power saving mode implicitly and / or explicitly. Specifically, embodiments that disable the dynamic power saving mode implicitly may include embodiments corresponding to step 401, and embodiments that disable the dynamic power saving mode explicitly may include embodiments corresponding to combinations of steps 501 to 502.
[0168] Optionally, in some embodiments, when the first device receives a second radio frame, and the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling, at least one of the following steps 401 and 502 may also be performed:
[0169] Referring to Figure 4, in step 401, the first device sends a third wireless frame to the second device and disables the dynamic power-saving mode; wherein, the third wireless frame is an acknowledgment frame of the second wireless frame. Correspondingly, the second device receives the third wireless frame sent by the first device.
[0170] Optionally, the third radio frame may include, but is not limited to, a TACK frame (TWT acknowledgment), a STACK frame (short TWT acknowledgment), an ACK frame (acknowledgment), or a BA frame (block ACK), and the embodiments disclosed herein do not impose any limitations on this.
[0171] Optionally, if the second device receives a third wireless frame sent by the first device, it can be determined that the first device has turned off the dynamic power saving mode.
[0172] Referring to Figure 5, in step 501, the first device determines the fourth wireless frame and disables the dynamic power saving mode; wherein, the fourth wireless frame includes first identification information, the first identification information indicating that the first device disables the dynamic power saving mode.
[0173] Optionally, the fourth radio frame may include a dynamic power saving mode enable flag. Optionally, the content identified by the dynamic power saving mode enable flag can be determined by the parameter value of the dynamic power saving mode enable flag. For example, if the dynamic power saving mode enable flag is set to the fifth parameter value (e.g., "1"), it indicates that the first device enables (i.e., maintains) dynamic power saving mode; if the dynamic power saving mode enable flag is set to the sixth parameter value (e.g., "0"), it indicates that the first device disables dynamic power saving mode.
[0174] Therefore, it can be seen that in the fourth wireless frame, the dynamic power saving mode flag is set to the sixth parameter value; that is, the fourth wireless frame includes the first identification information, and the first identification information indicates that the first device turns off the dynamic power saving mode.
[0175] In step 502, the first device sends the fourth radio frame to the second device. Correspondingly, the second device receives the fourth radio frame sent by the first device.
[0176] Optionally, in some embodiments, referring to FIG6, before the first device sends the first radio frame to the second device associated with it (i.e., step 201), the above method further includes:
[0177] Step 601, the first device determines the fifth wireless frame; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
[0178] Optionally, the fifth radio frame may include, but is not limited to, a Probe Request frame, an Association Request frame, and a Re-Association Request frame.
[0179] Optionally, the fifth radio frame may include a UHR MAC Capabilities Information field, which includes a DPS Support (Dynamic Power Save) flag, with second identification information carried in the DPS Support flag.
[0180] In some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0181] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0182] Optionally, the first parameter value can be "1" and the second parameter value can be "0". That is, when the DPS Support flag is set to "1", it indicates that the first device supports dynamic power saving mode; when the DPS Support flag is set to "0", it indicates that the first device does not support dynamic power saving mode.
[0183] In some embodiments, the fifth wireless frame further includes third identification information, which identifies whether the first device enables or disables dynamic power saving mode.
[0184] Optionally, the fifth radio frame may also carry a first identification field, which includes a DPS Enable flag, and the third identification information may be carried in the DPS Enable flag.
[0185] In some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0186] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0187] Optionally, the third parameter value can be "1" and the fourth parameter value can be "0". That is, when the DPS Enable flag is set to "1", it indicates that the first device enables DPS mode (i.e., turns on DPS mode); when the DPS Enable flag is set to "0", it indicates that the first device turns off DPS mode.
[0188] In some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic power-saving mode.
[0189] Optionally, the fifth radio frame may also carry a second identification field, which includes a DPS Operation Parameters field, and the fourth identification information is carried in the DPS Operation Parameters field.
[0190] Optionally, the DPS Operation Parameters field is used to identify the operation parameters (i.e., communication parameters) of the first device in DPS mode. That is, the parameters carried in the DPS Operation Parameters field are the operation parameters of the first device in DPS mode.
[0191] In step 602, the first device sends a fifth radio frame to the second device. Correspondingly, the second device receives the fifth radio frame sent by the first device.
[0192] Optionally, referring to the embodiment shown in FIG7, it may include: steps 601, 602, 201, and 202 (wherein step 202 specifically involves maintaining the dynamic power saving mode when the first device does not receive the second wireless frame sent by the second device).
[0193] Step 601, the first device determines the fifth wireless frame; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
[0194] In some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0195] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0196] In some embodiments, the fifth wireless frame further includes third identification information, which identifies whether the first device enables or disables dynamic power saving mode.
[0197] In some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0198] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0199] In some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic power-saving mode.
[0200] In step 602, the first device sends a fifth radio frame to the second device. Correspondingly, the second device receives the fifth radio frame sent by the first device.
[0201] Step 201: The first device sends a first radio frame to the associated second device; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode. Accordingly, the second device receives the first radio frame sent by the first device.
[0202] Step 202: If the first device does not receive the second wireless frame sent by the second device, maintain the dynamic power saving mode; wherein the second wireless frame is used to respond to the first wireless frame.
[0203] Optionally, referring to the embodiment shown in FIG8, it may include: steps 601, 602, 201, 202 (specifically, maintaining dynamic power saving mode when the first device receives the second radio frame and the second radio frame indicates that the second device does not accept the establishment or negotiation of TWT scheduling), step 301 (specifically, the second device determines the second radio frame; wherein the second radio frame indicates that the second device does not accept the establishment or negotiation of TWT scheduling) and step 302.
[0204] Step 601, the first device determines the fifth wireless frame; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
[0205] In some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0206] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0207] In some embodiments, the fifth wireless frame further includes third identification information, which identifies whether the first device enables or disables dynamic power saving mode.
[0208] In some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0209] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0210] In some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic power-saving mode.
[0211] In step 602, the first device sends a fifth radio frame to the second device. Correspondingly, the second device receives the fifth radio frame sent by the first device.
[0212] Step 201: The first device sends a first radio frame to the associated second device; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode. Accordingly, the second device receives the first radio frame sent by the first device.
[0213] Step 301, the second device determines the second radio frame; wherein the second radio frame indicates that the second device does not accept the establishment or negotiation of TWT scheduling.
[0214] In step 302, the second device sends a second radio frame to the first device. Correspondingly, the first device receives the second radio frame sent by the second device.
[0215] Step 202: If the first device receives the second radio frame and the second radio frame indicates that the second device does not accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is maintained.
[0216] Optionally, referring to the embodiment shown in FIG9, it may include: step 601, step 602, step 201, step 301 (specifically, the second device determines the second radio frame; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling), step 302, and step 401.
[0217] Step 601, the first device determines the fifth wireless frame; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
[0218] In some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0219] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0220] In some embodiments, the fifth wireless frame further includes third identification information, which identifies whether the first device enables or disables dynamic power saving mode.
[0221] In some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0222] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0223] In some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic power-saving mode.
[0224] In step 602, the first device sends a fifth radio frame to the second device. Correspondingly, the second device receives the fifth radio frame sent by the first device.
[0225] Step 201: The first device sends a first radio frame to the associated second device; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode. Accordingly, the second device receives the first radio frame sent by the first device.
[0226] Step 301, the second device determines the second radio frame; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling.
[0227] In step 302, the second device sends a second radio frame to the first device. Correspondingly, the first device receives the second radio frame sent by the second device.
[0228] Step 401: The first device sends a third wireless frame to the second device and disables the dynamic power saving mode; wherein the third wireless frame is an acknowledgment frame of the second wireless frame. Correspondingly, the second device receives the third wireless frame sent by the first device.
[0229] Optionally, referring to the embodiment shown in FIG10, it may include: step 601, step 602, step 201, step 301 (specifically, the second device determines the second radio frame; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling), step 302, step 501 and step 502.
[0230] Step 601, the first device determines the fifth wireless frame; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
[0231] In some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0232] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0233] In some embodiments, the fifth wireless frame further includes third identification information, which identifies whether the first device enables or disables dynamic power saving mode.
[0234] In some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0235] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0236] In some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic power-saving mode.
[0237] In step 602, the first device sends a fifth radio frame to the second device. Correspondingly, the second device receives the fifth radio frame sent by the first device.
[0238] Step 201: The first device sends a first radio frame to the associated second device; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode. Accordingly, the second device receives the first radio frame sent by the first device.
[0239] Step 301, the second device determines the second radio frame; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling.
[0240] In step 302, the second device sends a second radio frame to the first device. Correspondingly, the first device receives the second radio frame sent by the second device.
[0241] Step 501: The first device determines the fourth wireless frame and disables the dynamic power saving mode; wherein, the fourth wireless frame includes first identification information, the first identification information indicating that the first device disables the dynamic power saving mode.
[0242] In step 502, the first device sends the fourth radio frame to the second device. Correspondingly, the second device receives the fourth radio frame sent by the first device.
[0243] In the embodiments shown in Figures 7, 8, 9 and 10, the specific implementation methods of each step can be found in the relevant embodiments of Figures 2 to 6 above, and will not be repeated here.
[0244] This disclosure provides a dynamic power-saving method, process, and apparatus. Specifically, when a non-AP STA that supports and enables dynamic power-saving mode negotiates with its associated AP to establish / join a TWT Schedule (i.e., taking the first device as a non-AP STA and the second device as an AP as an example), the dynamic power-saving mode is implicitly disabled, or, after successful TWT Schedule negotiation, a dynamic power-saving mode indication frame is sent to inform the AP that the non-AP STA has disabled dynamic power-saving mode. Accordingly, the AP can perform a response operation based on the non-AP STA's power mode (i.e., communication mode). Based on this method, current dynamic power-saving methods and processes can be improved, reducing device power consumption while maintaining good backward compatibility.
[0245] Specifically, the dynamic power-saving method may include the following steps:
[0246] 1. Non-AP STAs indicate whether they support Dynamic Power Save (DPS) mode via the DPS Support flag in the fifth radio frame.
[0247] For example, a non-AP STA carries a UHR MAC Capabilities Information field in the fifth radio frame (e.g., a Probe Request frame or a (Re)Association Request frame), which includes a DPS Support flag. When the DPS Support flag is set to 1, it indicates that the STA supports DPS mode; conversely (i.e., when the DPS Support flag is set to 0), it indicates that the STA does not support DPS mode.
[0248] 2. When the non-AP STA supports DPS mode (i.e., the DPS Support flag is set to 1), the non-AP STA indicates whether to enable DPS mode through the DPS Enable flag.
[0249] For example, a non-AP STA carries a first identification field in the fifth radio frame, which includes a DPS Enable flag. When the DPS Enable flag is set to 1, it indicates that DPS mode is enabled (i.e., DPS mode is on); conversely (i.e., when the DPS Enable flag is set to 0), it indicates that DPS mode is off.
[0250] 3. When the non-AP STA enables DPS mode (i.e., the DPS Enable flag is set to 1), the non-AP STA can also indicate the operating parameters in DPS mode in the fifth radio frame.
[0251] For example, a non-AP STA carries a second identification field in the fifth radio frame, which includes a DPS Operation Parameters field, used to identify the operating parameters of the non-AP STA in DPS mode.
[0252] 4. When negotiating the first TWT Schedule with its associated AP, a non-AP STA that has enabled DPS mode performs at least one of the following operations:
[0253] A. If the non-AP STA does not receive a TWT response from the AP (i.e., the second radio frame mentioned above), or if the TWT response indicates that the AP rejects the first TWT Schedule request sent by the non-AP STA (i.e., the TWT Setup Command field is set to Reject TWT in the TWT response; where the first TWT Schedule request is the first radio frame mentioned above), the non-AP STA maintains its current DPS mode.
[0254] B. When a non-AP STA receives a TWT response frame from the AP, and the TWT response indicates that the AP accepts the first TWT Schedule request sent by the non-AP STA (that is, the TWT Setup Command field is set to Accept TWT or Alternate TWT in the TWT response), the non-AP STA disables DPS mode (i.e., implicitly disables DPS mode).
[0255] C. When the non-AP STA receives a TWT response from the AP, and the TWT response indicates that the AP accepts the first TWT Schedule request sent by the non-AP STA (that is, in the TWT response, the TWT Setup Command field is set to Accept TWT or Alternate TWT), the non-AP STA sends a fourth radio frame. The fourth radio frame contains a first identification field (that is, the first identification information mentioned above) and the first identification field is set to 0 (that is, the DPS Enable flag is set to 0), indicating that the DPS mode is turned off (explicitly turning off the DPS mode).
[0256] Optionally, the aforementioned TWT SPs include, but are not limited to: Individual TWT SPs, Broadcast TWT SPs, and Restricted-TWT SPs.
[0257] 5. After the AP sends a TWT response to the non-AP STA, it performs at least one of the following operations:
[0258] A. Corresponding to 4-A, the TWT response indicates that the AP rejects the first TWT Schedule request sent by the non-AP STA, assuming that the non-AP STA should continue to maintain the current DPS mode;
[0259] B. The TWT response indicates that the AP accepts the first TWT Schedule request sent by the non-AP STA, assuming that the non-AP STA has disabled DPS mode;
[0260] C. Corresponding to 4-C, when the AP receives the fourth radio frame sent by the non-AP STA, it assumes that the non-AP STA has turned off DPS mode.
[0261] Based on the steps of the above-mentioned dynamic power saving method, the current dynamic power saving method and process can be improved, reducing equipment energy consumption while having good backward compatibility.
[0262] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "bit", "data", "program", and "chip" can be used interchangeably.
[0263] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”
[0264] In some embodiments, terms such as wireless access scheme and waveform can be used interchangeably.
[0265] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.
[0266] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values (e.g., a comparison with a predetermined value), but is not limited thereto.
[0267] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.
[0268] The communication method involved in the embodiments of this disclosure may include the foregoing steps and at least one of the embodiments. For example, step 201 can be implemented as an independent embodiment, step 202 can be implemented as an independent embodiment, step 301 can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment, step 401 can be implemented as an independent embodiment, step 501 can be implemented as an independent embodiment, step 601 can be implemented as an independent embodiment, and step 602 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 301 and step 302 can be implemented as an independent embodiment, and the combination of step 201, step 202, step 301 and step 302 can be implemented as an independent embodiment. 1. The combination of steps 301, 302, 501 and 502 can be implemented as an independent embodiment; the combination of steps 601, 602, 201 and 202 can be implemented as an independent embodiment; the combination of steps 601, 602, 201, 202, 301 and 302 can be implemented as an independent embodiment; the combination of steps 601, 602, 201, 301, 302 and 401 can be implemented as an independent embodiment; the combination of steps 601, 602, 201, 301, 302, 501 and 502 can be implemented as an independent embodiment, but is not limited thereto.
[0269] In some embodiments, other alternative implementations described before or after the specification corresponding to FIG10 may be referred to.
[0270] Figure 11 is a schematic flowchart of a communication method according to an embodiment of the present disclosure.
[0271] As shown in Figure 11, the above method can be applied to the first device, and the method includes:
[0272] Step 1101: Send a first radio frame to the second device associated with it; wherein, the first radio frame is used to establish or negotiate the target wake-up time (TWT) schedule; the first device has enabled dynamic power saving mode;
[0273] Step 1102: Based on the response result of the second device to the first wireless frame, maintain or disable the dynamic power saving mode.
[0274] In some embodiments, maintaining or disabling the dynamic power-saving mode based on the response of the second device to the first wireless frame includes at least one of the following:
[0275] In the absence of a second wireless frame sent by the second device, the dynamic power saving mode is maintained; wherein the second wireless frame is used to respond to the first wireless frame;
[0276] Upon receiving the second radio frame, and the second radio frame indicating that the second device does not accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is maintained.
[0277] Upon receiving the second radio frame, and the second radio frame instructing the second device to accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is turned off.
[0278] In some embodiments, disabling the dynamic power saving mode includes at least one of the following:
[0279] Receive a second wireless frame sent by the second device; wherein the second wireless frame indicates that the second device accepts the establishment or negotiation of TWT scheduling; send a third wireless frame to the second device and disable dynamic power saving mode; wherein the third wireless frame is an acknowledgment frame of the second wireless frame;
[0280] The system receives a second radio frame sent by the second device; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling; determines a fourth radio frame and disables dynamic power saving mode; wherein the fourth radio frame includes first identification information, the first identification information indicating that the first device disables dynamic power saving mode; and sends the fourth radio frame to the second device.
[0281] In some embodiments, prior to sending the first wireless frame to the associated second device, the method further includes:
[0282] A fifth wireless frame is determined; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode;
[0283] Send a fifth wireless frame to the second device.
[0284] In some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0285] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0286] In some embodiments, the fifth wireless frame further includes third identification information, which identifies whether the first device enables or disables dynamic power saving mode.
[0287] In some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0288] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0289] In some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic mode.
[0290] In some embodiments, the dynamic power-saving mode includes switching between a first capability communication mode and a second capability communication mode;
[0291] The first capability communication mode and the second capability communication mode include at least one identical communication parameter, wherein the parameter value of the communication parameter is smaller in the first capability communication mode than in the second capability communication mode.
[0292] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.
[0293] The communication method involved in the embodiments of this disclosure may include the foregoing steps and at least one of the embodiments. For example, step 1101 may be implemented as a separate embodiment, and step 1102 may be implemented as a separate embodiment; the combination of step 1101 and step 1102 may be implemented as a separate embodiment, but is not limited thereto.
[0294] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG11.
[0295] Figure 12 is a second schematic flowchart illustrating a communication method according to an embodiment of the present disclosure.
[0296] As shown in Figure 12, the above method can be applied to a second device, and the method includes:
[0297] Step 1201: Receive a first radio frame sent by a first device associated with it; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode.
[0298] Step 1202: Determine the second radio frame and send the second radio frame to the first device; wherein the second radio frame indicates whether the second device accepts the establishment or negotiation of TWT scheduling.
[0299] In some embodiments, the method further includes at least one of the following:
[0300] The system receives a third wireless frame sent by the first device and determines that the first device has turned off the dynamic power saving mode; wherein the third wireless frame is an acknowledgment frame of the second wireless frame.
[0301] The system receives a fourth wireless frame sent by the first device and determines that the first device has disabled the dynamic power saving mode; wherein the fourth wireless frame includes first identification information, which indicates that the first device has disabled the dynamic power saving mode; the system then sends the fourth wireless frame to the second device.
[0302] Optionally, the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling.
[0303] In some embodiments, prior to receiving the first wireless frame transmitted by the associated first device, the method further includes:
[0304] The first device receives a fifth wireless frame sent by the first device; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
[0305] In some embodiments, the second identification information is set to a first parameter value, indicating that the first device supports dynamic power saving mode;
[0306] The second identification information is set to the second parameter value, indicating that the first device does not support dynamic power saving mode.
[0307] In some embodiments, the fifth wireless frame further includes third identification information, which identifies whether the first device enables or disables dynamic power saving mode.
[0308] In some embodiments, the third identification information is set to a third parameter value, indicating that the first device enables dynamic power saving mode;
[0309] The third identification information is set to the fourth parameter value, indicating that the first device has turned off the dynamic power saving mode.
[0310] In some embodiments, the fifth wireless frame further includes fourth identification information, which identifies the communication parameters of the first device in dynamic mode.
[0311] In some embodiments, the dynamic power-saving mode includes switching between a first capability communication mode and a second capability communication mode;
[0312] The first capability communication mode and the second capability communication mode include at least one identical communication parameter, wherein the parameter value of the communication parameter is smaller in the first capability communication mode than in the second capability communication mode.
[0313] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.
[0314] The communication method involved in the embodiments of this disclosure may include the foregoing steps and at least one of the embodiments. For example, step 1201 may be implemented as a separate embodiment, step 1202 may be implemented as a separate embodiment, and the combination of step 1201 and step 1202 may be implemented as a separate embodiment, but is not limited thereto.
[0315] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.
[0316] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.
[0317] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.
[0318] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).
[0319] Figure 13 is a schematic diagram of the structure of a first device according to an embodiment of this disclosure. The first device is used to perform any of the above methods. In some embodiments, as shown in Figure 13, the first device 1300 may include at least one of a transceiver module 1201, a processing module 1202, etc.
[0320] In some embodiments, the transceiver module 1201 is configured to send a first wireless frame to a second device associated with the first device; wherein the first wireless frame is used to establish or negotiate a target wake-up time (TWT) schedule; the first device has enabled a dynamic power saving mode; and the processing module 1202 is configured to maintain or disable the dynamic power saving mode based on the response result of the second device to the first wireless frame.
[0321] Optionally, the transceiver module 1201 is used to execute at least one of the transceiver steps (e.g., steps 201, 302, 401, 502, 602, 1101, but not limited thereto) executed by the first device in any of the above methods, which will not be described in detail here. The processing module 1202 is used to execute at least one of the communication steps (e.g., steps 202, 501, 601, 1102, but not limited thereto) executed by the first device in any of the above methods, which will not be described in detail here.
[0322] In some embodiments, the processing module can be interchanged with the processor and the determination module, and the transceiver module can be interchanged with the transceiver, the sending module, and the receiving module.
[0323] Figure 14 is a schematic diagram of the structure of the second device proposed in an embodiment of this disclosure. The second device is used to perform any of the above methods. In some embodiments, as shown in Figure 14, the second device 1400 may include a transceiver module 1401 and a processing module 1402.
[0324] In some embodiments, the transceiver module 1401 is configured to receive a first radio frame sent by a first device associated therewith; wherein the first radio frame is used to establish or negotiate TWT scheduling; and the first device has enabled dynamic power saving mode.
[0325] The aforementioned processing module 1402 is used to determine a second radio frame; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling;
[0326] The transceiver module 1401 is also used to send a second wireless frame to the first device.
[0327] Optionally, the transceiver module 1401 is used to execute at least one of the transceiver steps (e.g., steps 201, 302, 401, 502, 602, 1201, 1202, but not limited thereto) executed by the second device in any of the above methods, which will not be elaborated here.
[0328] The processing module 1402 described above is used to execute at least one of the communication steps (such as step 301, step 1202, but not limited thereto) executed by the second device in any of the above methods, which will not be described in detail here.
[0329] In some embodiments, the processing module can be interchanged with the processor and the determination module, and the transceiver module can be interchanged with the transceiver, the sending module, and the receiving module.
[0330] Figure 15 is a schematic diagram of the structure of the communication device 1500 proposed in an embodiment of this disclosure. The communication device 1500 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 1500 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.
[0331] As shown in Figure 15, the communication device 1500 is used to execute any of the above methods. In some embodiments, the communication device 1500 includes one or more processors 1501. The processor 1501 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 1500 is used to execute any of the above methods. Optionally, one or more processors 1501 are used to invoke instructions to cause the communication device 1500 to execute any of the above methods.
[0332] In some embodiments, the communication device 1500 further includes one or more transceivers 1502. When the communication device 1500 includes one or more transceivers 1502, the transceiver 1502 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps 201, 302, 401, 502, 602, 1101, 1201, 1202, but not limited thereto), and the processor 1501 performs at least one of other steps (e.g., steps 202, 501, 601, 1102, 301, 1202, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface can be used interchangeably; terms such as transmitter, transmitter unit, transmitter, and transmitter circuit can be used interchangeably; and terms such as receiver, receiver unit, receiver, and receiver circuit can be used interchangeably.
[0333] In some embodiments, the communication device 1500 further includes one or more memories 1503 for storing data and / or instructions. Optionally, one or more processors 1501 are used to invoke instructions stored in the memory 1503 to cause the communication device 1500 to perform any of the above methods. Optionally, all or part of the memory 1503 may also be located outside the communication device 1500. In an optional embodiment, the communication device 1500 may include one or more interface circuits 1504. Optionally, the interface circuit 1504 is connected to the memory 1502 and can be used to receive data and / or instructions from the memory 1502 or other devices, and can be used to send data and / or instructions to the memory 1502 or other devices. For example, the interface circuit 1504 can read data and / or instructions stored in the memory 1502 and send the data and / or instructions to the processor 1501.
[0334] The communication device 1500 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 1500 described in this disclosure is not limited thereto, and the structure of the communication device 1500 may not be limited by FIG15. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.
[0335] Figure 16 is a schematic diagram of the structure of the chip 1600 proposed in an embodiment of this disclosure. For cases where the communication device 1500 can be a chip or a chip system, the schematic diagram of the chip 1600 shown in Figure 16 can be referenced, but is not limited thereto.
[0336] Chip 1600 includes one or more processors 1601. Chip 1600 is used to perform any of the methods described above.
[0337] In some embodiments, chip 1600 further includes one or more interface circuits 1602. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 1600 further includes one or more memories 1603 for storing data and / or instructions. Optionally, all or part of the memories 1603 may be located outside of chip 1600. Optionally, interface circuit 1602 is connected to memory 1603, and interface circuit 1602 can be used to receive data and / or instructions from memory 1603 or other devices, and interface circuit 1602 can be used to send data and / or instructions to memory 1603 or other devices. For example, interface circuit 1602 can read data and / or instructions stored in memory 1603 and send the data and / or instructions to processor 1601.
[0338] In some embodiments, the interface circuit 1602 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps 201, 302, 401, 502, 602, 1101, 1201, 1202, but not limited thereto). The interface circuit 1602 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 1602 performing data and / or instruction interaction between the processor 1601, the chip 1600, the memory 1603, or the transceiver device. In some embodiments, the processor 1601 performs at least one of other steps (e.g., steps 202, 501, 601, 1102, 301, 1202, but not limited thereto).
[0339] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.
[0340] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.
[0341] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.
[0342] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.
Claims
1. A communication method, characterized in that, Performed by a first device, the method includes: Send a first radio frame to the second device associated with it; wherein the first radio frame is used to establish or negotiate the target wake-up time (TWT) schedule; the first device has enabled dynamic power saving mode; Based on the response of the second device to the first wireless frame, the dynamic power saving mode is maintained or turned off.
2. The communication method according to claim 1, characterized in that, The step of maintaining or disabling the dynamic power-saving mode based on the response result of the second device to the first wireless frame includes at least one of the following: In the absence of a second wireless frame sent by the second device, the dynamic power saving mode is maintained; wherein the second wireless frame is used to respond to the first wireless frame; Upon receiving the second radio frame, and the second radio frame indicating that the second device does not accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is maintained. Upon receiving the second radio frame, and the second radio frame instructing the second device to accept the establishment or negotiation of TWT scheduling, the dynamic power saving mode is turned off.
3. The communication method according to claim 1 or 2, characterized in that, The disabling of dynamic power saving mode includes at least one of the following: Receive a second wireless frame sent by the second device; wherein the second wireless frame indicates that the second device accepts the establishment or negotiation of TWT scheduling; send a third wireless frame to the second device and disable dynamic power saving mode; wherein the third wireless frame is an acknowledgment frame of the second wireless frame; The system receives a second radio frame sent by the second device; wherein the second radio frame indicates that the second device accepts the establishment or negotiation of TWT scheduling; determines a fourth radio frame and disables dynamic power saving mode; wherein the fourth radio frame includes first identification information, the first identification information indicating that the first device disables dynamic power saving mode; and sends the fourth radio frame to the second device.
4. The communication method according to any one of claims 1 to 3, characterized in that, Before sending the first wireless frame to the associated second device, the method further includes: A fifth wireless frame is determined; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode; Send a fifth wireless frame to the second device.
5. The communication method according to claim 4, characterized in that, The fifth wireless frame also includes third identification information, which indicates that the first device enables or disables dynamic power saving mode.
6. The communication method according to claim 4 or 5, characterized in that, The fifth wireless frame also includes fourth identification information, which identifies the communication parameters of the first device in dynamic power saving mode; wherein, the dynamic power saving mode includes switching between a first capability communication mode and a second capability communication mode; The first capability communication mode and the second capability communication mode include at least one identical communication parameter, wherein the parameter value of the communication parameter is smaller in the first capability communication mode than in the second capability communication mode.
7. A communication method, characterized in that, Performed by a second device, the method includes: Receives a first radio frame sent by a first device associated with it; wherein the first radio frame is used to establish or negotiate TWT scheduling; the first device has enabled dynamic power saving mode; A second radio frame is determined and sent to the first device; wherein the second radio frame indicates whether the second device accepts the establishment or negotiation of TWT scheduling.
8. The communication method according to claim 7, characterized in that, The method further includes at least one of the following: The system receives a third wireless frame sent by the first device and determines that the first device has turned off the dynamic power saving mode; wherein the third wireless frame is an acknowledgment frame of the second wireless frame. The system receives a fourth wireless frame sent by the first device and determines that the first device has disabled the dynamic power saving mode; wherein the fourth wireless frame includes first identification information, which indicates that the first device has disabled the dynamic power saving mode; the system then sends the fourth wireless frame to the second device.
9. The communication method according to claim 7 or 8, characterized in that, Before receiving the first radio frame sent by the first device associated with it, the method further includes: The first device receives a fifth wireless frame sent by the first device; wherein the fifth wireless frame includes second identification information, the second identification information indicating whether the first device supports dynamic power saving mode.
10. The communication method according to claim 9, characterized in that, The fifth wireless frame also includes third identification information, which indicates that the first device enables or disables dynamic power saving mode.
11. The communication method according to claim 9 or 10, characterized in that, The fifth wireless frame also includes fourth identification information, which identifies the communication parameters of the first device in dynamic power saving mode; wherein, the dynamic power saving mode includes switching between a first capability communication mode and a second capability communication mode; The first capability communication mode and the second capability communication mode include at least one identical communication parameter, wherein the parameter value of the communication parameter is smaller in the first capability communication mode than in the second capability communication mode.
12. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1 to 6 or claims 7 to 11.
13. A communication system, characterized in that, Including the first device and the second device; The first device is configured to implement the communication method according to any one of claims 1 to 6, and the second device is configured to implement the communication method according to any one of claims 7 to 11.
14. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as described in any one of claims 1 to 6, or performs the communication method as described in any one of claims 7 to 11.
15. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by a communication device, it implements the communication method of any one of claims 1 to 6, or the communication method of any one of claims 7 to 11.