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WO2025222468A1 - Procédés et dispositifs de communication, et support de stockage - Google Patents

Procédés et dispositifs de communication, et support de stockage

Info

Publication number
WO2025222468A1
WO2025222468A1 PCT/CN2024/089920 CN2024089920W WO2025222468A1 WO 2025222468 A1 WO2025222468 A1 WO 2025222468A1 CN 2024089920 W CN2024089920 W CN 2024089920W WO 2025222468 A1 WO2025222468 A1 WO 2025222468A1
Authority
WO
WIPO (PCT)
Prior art keywords
roaming
frame
target device
mld
communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/089920
Other languages
English (en)
Chinese (zh)
Inventor
董贤东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2024/089920 priority Critical patent/WO2025222468A1/fr
Publication of WO2025222468A1 publication Critical patent/WO2025222468A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • This disclosure relates to the field of communication technology, and in particular to a communication method, device, and storage medium.
  • non-AP MLD station or non-AP multi-link device
  • AP access point
  • AP MLD multi-link access point
  • This disclosure provides a communication method, a device, and a storage medium.
  • embodiments of this disclosure provide a communication method applied to a first device, the method comprising:
  • a first radio frame is determined, wherein the first radio frame is used to instruct the second device to roam between access point devices (APs), wherein the first device includes an AP or a multi-connection access point device (AP MLD), and the second device includes a site device (STA) or a multi-connection site device (Non-AP MLD).
  • APs access point devices
  • AP MLD multi-connection access point device
  • STA site device
  • Non-AP MLD non-AP MLD
  • embodiments of this disclosure provide a communication method applied to a second device, the method comprising:
  • the device receives a first radio frame, which is used to instruct the second device to roam between APs.
  • the first radio frame is sent by the first device, which includes an AP or an AP MLD, and the second device includes a STA or a Non-AP MLD.
  • embodiments of this disclosure provide a communication device, wherein the communication device is a first device, comprising:
  • the processing module is used to determine a first radio frame, wherein the first radio frame is used to instruct the second device to roam between access point devices (APs), wherein the first device includes an AP or a multi-connection access point device (AP MLD), and the second device includes a site device (STA) or a multi-connection site device (Non-AP MLD).
  • APs access point devices
  • AP MLD multi-connection access point device
  • STA site device
  • Non-AP MLD non-connection site device
  • the transceiver module is used to send the aforementioned first wireless frame.
  • embodiments of this disclosure provide a communication device, which is a second device, comprising:
  • the transceiver module is used to receive a first wireless frame, which is used to instruct the second device to roam between APs.
  • the first wireless frame is sent by the first device, which includes an AP or an AP MLD, and the second device includes a STA or a Non-AP MLD.
  • embodiments of this disclosure provide a communication device, including one or more processors;
  • the aforementioned processor is used to execute the communication method provided in the first aspect of the present disclosure embodiments; when the aforementioned communication device is used as a second device, the aforementioned processor is used to execute the communication method provided in the second aspect of the present disclosure embodiments.
  • embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method provided in the first or second aspect of embodiments of this disclosure.
  • embodiments of this disclosure provide a communication system comprising a first device and a second device; wherein the first device determines and sends a first radio frame to the second device, the first radio frame being used to instruct the second device to perform roaming between access point devices (APs), the first device comprising an AP or a multi-connection access point device (AP MLD), and the second device comprising a site device (STA) or a multi-connection site device (Non-AP MLD); the second device receives the first radio frame.
  • APs access point devices
  • AP MLD access point devices
  • STA site device
  • Non-AP MLD multi-connection site device
  • an indication method for roaming between APs can be provided.
  • Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of this disclosure
  • Figure 2 is an interactive schematic diagram of the communication method shown in an embodiment of this disclosure
  • Figure 3 is a flowchart illustrating one of the communication methods according to an embodiment of this disclosure.
  • Figure 4 is a second schematic flowchart illustrating the communication method according to an embodiment of this disclosure.
  • Figure 5 is a schematic diagram of the structure of a communication device shown in an embodiment of this disclosure.
  • Figure 6 is a second schematic diagram of the structure of a communication device shown in an embodiment of this disclosure.
  • Figure 7 is a third schematic diagram of the structure of the communication device proposed in the embodiment of this disclosure.
  • Figure 8 is a schematic diagram of the chip structure proposed in an embodiment of this disclosure.
  • This disclosure provides a communication method, device, and storage medium.
  • embodiments of this disclosure provide a communication method applied to a first device, the method comprising:
  • a first radio frame is determined, wherein the first radio frame is used to instruct the second device to roam between access point devices (APs), wherein the first device includes an AP or a multi-connection access point device (AP MLD), and the second device includes a site device (STA) or a multi-connection site device (Non-AP MLD).
  • APs access point devices
  • AP MLD multi-connection access point device
  • STA site device
  • Non-AP MLD non-AP MLD
  • the STA when the first device is either an AP or an AP MLD, the STA can be instructed to perform inter-AP roaming, or the Non-AP MLD can be instructed to perform inter-AP roaming. This is beneficial for improving the signaling process of inter-AP roaming between the STA and the Non-AP MLD, and improving roaming efficiency and data transmission efficiency.
  • the first wireless frame includes a first identifier bit, which is used to instruct the second device to perform inter-AP roaming.
  • the first wireless frame can instruct the second device to roam between APs through the first identifier bit, which helps to improve the indication efficiency of roaming between APs, thereby improving the data transmission efficiency.
  • the first wireless frame includes roaming parameters of at least one roaming target device; wherein the roaming parameters of the roaming target device include at least one of the following:
  • the device identifier of the aforementioned roaming target device
  • the aforementioned roaming target device is located in the beacon interval of the first link; wherein, when the aforementioned roaming target device is an AP, the aforementioned first link is the communication link where the aforementioned roaming target device is located, and when the aforementioned roaming target device is an AP MLD, the aforementioned first link is the communication link through which the aforementioned second device communicates with the aforementioned roaming target device after roaming to the aforementioned roaming target device;
  • the address information of the aforementioned roaming target device wherein, when the aforementioned roaming target device is an AP, the address information includes the MAC address of the aforementioned roaming target device; when the aforementioned roaming target device is an AP MLD, the address information includes at least one of the following:
  • the first radio frame may include roaming parameters for each roaming target device, thereby enabling the second device to perform inter-AP roaming based on the roaming parameters, improving inter-AP roaming efficiency, and saving signaling resources.
  • the roaming parameters of the roaming target device when the roaming target device and the first device belong to different management logic entities, the roaming parameters of the roaming target device also include the identification information of the logical management entity to which the roaming target device belongs.
  • the first wireless frame further includes at least one of the following:
  • the type field indicates that the frame type of the first radio frame is an Ultra-High Reliability Action (UHR) frame.
  • UHR Ultra-High Reliability Action
  • the protected UHR action field indicates whether the first radio frame is a roaming notification frame or a handover notification frame.
  • the dialog token field is used to identify the session to which the first radio frame belongs.
  • the first information element includes at least one of the following:
  • the first wireless frame can instruct the second device to roam between APs while simultaneously indicating roaming parameters, frame type, and other information, which helps to save signaling resources and improve the efficiency of the second device in roaming between APs.
  • the above method further includes:
  • the second device can send a first request frame to the first device to request inter-AP roaming before performing inter-AP roaming, which further improves the signaling process of inter-AP roaming.
  • the above method further includes:
  • the first device after the first device receives the first request frame for requesting inter-AP roaming, it can respond through the first response frame, thereby enabling the second AP to roam between APs, further improving the signaling process for inter-AP roaming.
  • the first request frame includes a roaming request frame or a handover request frame
  • the first response frame includes a roaming response frame or a handover response frame
  • embodiments of this disclosure provide a communication method applied to a second device, the method comprising:
  • the device receives a first radio frame, which is used to instruct the second device to roam between APs.
  • the first radio frame is sent by the first device, which includes an AP or an AP MLD, and the second device includes a STA or a Non-AP MLD.
  • the STA when the first device is either an AP or an AP MLD, the STA can be instructed to perform inter-AP roaming, or the Non-AP MLD can be instructed to perform inter-AP roaming. This is beneficial for improving the signaling process of inter-AP roaming between the STA and the Non-AP MLD, and improving roaming efficiency and data transmission efficiency.
  • the first wireless frame includes a first identifier bit, which is used to instruct the second device to perform inter-AP roaming.
  • the first wireless frame can instruct the second device to roam between APs through the first identifier bit, which helps to improve the indication efficiency of roaming between APs, thereby improving the data transmission efficiency.
  • the first wireless frame mentioned above includes roaming parameters of at least one roaming target device; wherein the roaming parameters of the roaming target device include at least one of the following:
  • the device identifier of the aforementioned roaming target device
  • the beacon interval of the aforementioned roaming target device in the aforementioned first link wherein, when the aforementioned roaming target device is an AP, the aforementioned first link is the communication link where the aforementioned roaming target device is located, and when the aforementioned roaming target device is an AP MLD, the aforementioned first link is the communication link through which the aforementioned second device communicates with the aforementioned roaming target device after roaming to the aforementioned roaming target device;
  • the address information of the aforementioned roaming target device wherein, when the aforementioned roaming target device is an AP, the aforementioned address information includes the MAC address of the aforementioned roaming target device; when the aforementioned roaming target device is an AP MLD, the aforementioned address information includes at least one of the following:
  • the first radio frame may include roaming parameters for each roaming target device, thereby enabling the second device to perform inter-AP roaming based on the roaming parameters, improving inter-AP roaming efficiency, and saving signaling resources.
  • the roaming parameters of the roaming target device when the roaming target device and the first device belong to different management logic entities, the roaming parameters of the roaming target device also include the identification information of the logical management entity to which the roaming target device belongs.
  • the first wireless frame further includes at least one of the following:
  • the type field indicates that the frame type of the first radio frame is an Ultra-High Reliability Action (UHR) frame.
  • UHR Ultra-High Reliability Action
  • the protected UHR action field indicates whether the first radio frame is a roaming notification frame or a handover notification frame.
  • the dialog token field is used to identify the session to which the first radio frame belongs.
  • the first information element includes at least one of the following:
  • the first wireless frame can instruct the second device to roam between APs while simultaneously indicating roaming parameters, frame type, and other information, which helps to save signaling resources and improve the efficiency of the second device in roaming between APs.
  • the above method further includes:
  • the second device can send a first request frame to the first device to request inter-AP roaming before performing inter-AP roaming, which further improves the signaling process of inter-AP roaming.
  • the above method further includes:
  • the first response frame is received, and roaming between APs is performed according to the above roaming parameters.
  • the first response frame is used to respond to the first request frame.
  • the first device after the first device receives the first request frame for requesting inter-AP roaming, it can respond through the first response frame, thereby enabling the second AP to roam between APs, further improving the signaling process for inter-AP roaming.
  • the first request frame includes a roaming request frame or a handover request frame
  • the first response frame includes a roaming response frame or a handover response frame
  • embodiments of this disclosure provide a communication device, wherein the communication device is a first device, comprising:
  • the processing module is configured to determine a first radio frame, wherein the first radio frame is used to instruct the second device to perform roaming between access point devices (APs), wherein the first device includes an AP or a multi-connectivity access point device (AP MLD), and the second device includes a site device (STA) or a multi-connectivity access point device (AP MLD).
  • APs access point devices
  • STA site device
  • AP MLD multi-connectivity access point device
  • the transceiver module is used to send the aforementioned first wireless frame.
  • embodiments of this disclosure provide a communication device, which is a second device, comprising:
  • the transceiver module is used to receive a first wireless frame, which is used to instruct the second device to roam between APs.
  • the first wireless frame is sent by the first device, which includes an AP or an AP MLD, and the second device includes a STA or a Non-AP MLD.
  • embodiments of this disclosure provide a communication device, including one or more processors;
  • the aforementioned processor executes the communication method provided by the first aspect and optional embodiments thereof; or when it is used as a second device, the aforementioned processor executes the communication method provided by the second aspect and optional embodiments thereof.
  • embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the methods described in the first aspect, the second aspect, optional embodiments of the first aspect, and optional embodiments of the second aspect.
  • embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the methods described in the first aspect, the second aspect, optional embodiments of the first aspect, and optional embodiments of the second aspect.
  • embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in the first aspect, the second aspect, optional embodiments of the first aspect, and optional embodiments of the second aspect.
  • embodiments of this disclosure provide a chip or chip system.
  • the chip or chip system includes processing circuitry configured to perform the methods described in the first aspect, the second aspect, optional embodiments of the first aspect, and optional embodiments of the second aspect.
  • embodiments of this disclosure provide a communication system comprising a first device and a second device; wherein the first device is configured to perform the method described in the first aspect and optional embodiments thereof, and the second device is configured to perform the method described in the second aspect and optional embodiments thereof.
  • This disclosure provides a communication method, device, and storage medium.
  • the terms “communication method” and “information processing method” can be used interchangeably, as can the terms “communication device” and “information processing device,” and the terms “information processing system” and “communication system.”
  • each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • 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.
  • 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.
  • the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.
  • 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 B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.
  • the notation "A or B” may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); 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, C, etc.
  • prefixes such as “first” and “second” are used only to distinguish different descriptive objects and do not imply any specific meaning of the descriptive objects.
  • the placement, order, priority, quantity, or content of the described object constitute limitations. For statements about the described object, please refer to the description in the claims or the context of the embodiments. The use of prefixes should not constitute unnecessary limitations.
  • the described object is a "field,” then 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.”
  • the described object is a "level,” then the ordinal numbers preceding "level” in “first level” and “second level” do not restrict the priority between “levels.”
  • the number of described objects is not limited by ordinal numbers and can be one or more.
  • the number of "devices” can be one or more.
  • the objects modified by different prefixes can be the same or different.
  • first device and second device can be the same device or different devices, and their types can be the same or different.
  • first information and second information can be the same information or different information, and their content can be the same or different.
  • “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • the terms “in response to...”, “in response to determining...”, “in the case of...”, “when...”, “if...”, “if...”, etc., can be used interchangeably.
  • 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”.
  • the acquisition of data, information, etc. may comply with the laws and regulations of the country where the location is situated.
  • data, information, etc. may be obtained with the user's consent.
  • 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.
  • Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • the communication system 100 includes a first device 101 and a second device 102.
  • the first device 101 can be a standalone AP or an AP MLD-attached AP, or an AP MLD itself.
  • the second device 102 can be a standalone STA or an auxiliary STA of a Non-AP MLD, or it can be a Non-AP MLD itself, without any restrictions.
  • the first device 101 and the second device 102 are associated.
  • the first device 101 and the second device 102 may be terminal devices or network devices equipped with wireless fidelity chips.
  • the second device 102 can roam from the first device 101 to the roaming target device, which includes an AP or an AP MLD.
  • 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 link relationship between the main bodies is illustrative.
  • the link may be in any form, such as a direct link or an indirect link, a wired link or a wireless link.
  • WLANs Wireless Local Area Networks
  • IEEE 802.11 system standards including 802.11a/b/g, 802.11n, 802.11ac, 802.11ax, 802.11bf, 802.11be, or their next generation, such as 802.11bn.
  • WLAN systems such as Internet of Things (IoT) networks or Vehicle-to-X (V2X) networks.
  • IoT Internet of Things
  • V2X Vehicle-to-X
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G 5th Generation
  • Figure 2 is an interactive schematic diagram of the communication method shown in an embodiment of this disclosure.
  • the communication method shown in Figure 2 includes:
  • the first device sends a first radio frame, which is used to instruct the second device to roam between APs.
  • the first device includes an AP or an AP MLD
  • the second device includes a STA or a Non-AP MLD, without limitation.
  • the first radio frame is used to instruct the second device to roam between access points, that is, to indicate that it can switch to roaming.
  • the target device performs uplink and downlink communication.
  • the roaming target device includes AP MLD or AP, and there are no restrictions on this.
  • the first wireless frame includes a first identifier bit.
  • the identifier value of the first identifier bit is a first value
  • the first identifier bit is used to instruct the second device to perform inter-AP roaming.
  • the first identifier can be any identifier in any information field of the first radio frame.
  • the first radio frame includes a Reconfiguration Operation Type field
  • the values for the Reconfiguration Operation Type field can be as follows:
  • the reconfiguration operation type field's flag value when the reconfiguration operation type field's flag value is 0, it indicates clearing the AP; when the flag value is 1, it indicates updating operation parameters; when the flag value is 2, it indicates adding a communication link; when the flag value is 3, it indicates deleting a communication link; and when the flag value is 4, it indicates updating the Non-simultaneous Transmit and Receive (NSTR) status.
  • the flag value of the reconfiguration operation type field is any value between 5 and 15, the reconfiguration operation type field is the first flag bit mentioned above, indicating that the second device should perform inter-AP roaming.
  • the first radio frame may be a roaming notification frame or a transition notification frame, or other radio frames, without limitation.
  • the first wireless frame can be sent to the second device in unicast form.
  • the first device can send the first wireless frame to the second device through any communication link.
  • the first wireless frame includes roaming parameters for at least one roaming target device.
  • Each roaming target device is a device from which the second device can switch roaming from the first device, meaning the second device can roam from the first device to each target device.
  • Each roaming target device includes an AP or an AP MLD.
  • the roaming parameters for each roaming target device are the relevant parameters required for the second device to roam from the first device to the corresponding roaming target device.
  • the roaming parameters for each roaming target device include the device identifier of the corresponding roaming target device.
  • the device identifier for each roaming target device can be the ID of the roaming target device.
  • the roaming target device is an AP MLD
  • its device identifier can be the AP MLD ID.
  • the roaming parameters for each roaming target device include the offset value of the time synchronization function (TSF) information between the first device and the corresponding roaming target device.
  • TSF time synchronization function
  • the offset value of the TSF information between the first device and the roaming target device is the offset value of the TSF information between the first device and the roaming target device under the second link under the first link.
  • the second link is the communication link where the first device is located, and the first link is the communication link where the roaming target device is located.
  • the roaming target device can be either an AP or an AP MLD; there are no restrictions on this.
  • the second link is the communication link through which the first device sends the first radio frame.
  • the first link is the communication link through which the second device conducts uplink and downlink communication with the roaming target device after roaming to it.
  • both the first device and the roaming target device are AP MLDs, the first link and the second link are the same.
  • the communication link through which the second device conducts uplink and downlink communication with the roaming target device after roaming to it is the same as the communication link through which the first device sends the first radio frame, i.e., link2.
  • the offset value of the TSF information between the first device and each roaming target device is used by the second device to achieve time synchronization with the roaming target device after roaming to the roaming target.
  • the roaming parameters for each roaming target device include the beacon interval of the corresponding roaming target device on the first link.
  • the beacon interval of the roaming target device on the first link is used to identify the frequency at which the roaming target device sends beacon frames on the first link.
  • the first link is the communication link of the roaming target device.
  • the first link is the communication link for the second device to communicate with the roaming target device for uplink and downlink communication after roaming to the roaming target device.
  • the offset value of TSF information between the first device and each roaming target device is used for the second device to roam to the roaming target. Then, time synchronization with the roaming target device is achieved based on this offset value.
  • the roaming parameters for each roaming target device include the address information of the corresponding roaming target device.
  • the address information of the roaming target device includes the MAC address of the roaming target device.
  • the address information of the roaming target device includes at least one of the following:
  • the link ID of the communication link where each affiliated AP of the roaming target device is located is located.
  • the roaming parameters of the roaming target device also include the identification information of the logical management entity to which the roaming target device belongs.
  • the MAC address of the roaming target device is the MLD MAC address corresponding to the roaming target device.
  • the roaming parameters for each roaming target device may include any one or more of the following: the device identifier of the roaming target device, the offset value of the TSF information between the first device and the roaming target device, the beacon interval of the roaming target device on the first link, or the address information of the roaming target device.
  • the specific parameters can be determined based on the actual application scenario requirements and are not limited here.
  • the first radio frame includes a category field, which indicates that the frame type of the first radio frame is an Ultra-High Reliability Action (UHR) frame.
  • UHR Ultra-High Reliability Action
  • the first radio frame includes a protected UHR action field, and when the identifier value of the protected UHR action field is a second value, it is used to indicate that the first radio frame is a roaming notification frame or a transition notification frame.
  • the first radio frame includes a dialog token field, which is used to identify the session to which the first radio frame belongs, that is, to identify the session flow that instructs the second device to roam between APs.
  • a first device sends a first radio frame to a second device, instructing the second device to perform inter-AP roaming.
  • the second device Before performing inter-AP roaming, the second device sends a first request frame to the first device to request inter-AP roaming. After receiving a first response frame from the first device in response to the first request frame, the second device performs inter-AP roaming.
  • the dialog token field is used to identify the session involving all signaling flows (first radio frame, first request frame, and first response frame) of inter-AP roaming.
  • the identifier value of the identifier bit in the dialog token field can be any positive integer, and there are no restrictions here.
  • the first wireless frame further includes a first information element, which includes at least one of the first identifier bit or roaming parameters of the roaming target device.
  • the first information element can be any information element in the first radio frame, or it can be a reconfiguration multi-link information element including the aforementioned reconfiguration operation type field, without any restrictions.
  • the first radio frame may include any one or more of the above-described type field, protected ultra-reliable action field, or conversation token field, without limitation.
  • the second device sends a first request frame, which is used to request roaming between APs.
  • the second device may send a first request frame to the first device.
  • the first request frame is used to request inter-AP roaming.
  • the first request frame can be a roaming request frame or a roaming transition request frame.
  • the second device can send a first request frame to the first device through any communication link associated with the first device.
  • the first device sends a first response frame, which is used to respond to the first request frame.
  • the first device may send a first response frame to the second device.
  • the first device after receiving the first request frame, the first device sends a first response frame to the second device to determine that the second device is roaming between APs.
  • the first response frame can be a roaming response frame or a roaming transition response frame.
  • the second device can receive the first response frame through any communication link associated with the first device.
  • the second device performs inter-AP roaming according to the roaming parameters of the target device.
  • the second device after receiving the first response frame, can perform inter-AP roaming according to the roaming parameters of each roaming target device in the first radio frame. For example, if a first roaming target device is determined, the second device roams from the first device to the first roaming target device according to the roaming parameters of the first roaming target device, and performs uplink and downlink communication with the first roaming target device.
  • the communication method involved in the embodiments of this disclosure may include the foregoing steps and at least one of the embodiments.
  • any one of steps S21-S24 may be implemented as an independent embodiment, and any combination of steps S21-S24 may be implemented as an independent embodiment, but is not limited thereto.
  • steps S21-S24 may be implemented as independent embodiments
  • steps S21-S23 may be implemented as independent embodiments
  • steps S21-S22 may be implemented as independent embodiments.
  • Figure 3 is a flowchart illustrating one of the communication methods according to an embodiment of this disclosure. As shown in Figure 3, the method is executed by a first device and includes:
  • the first radio frame is used to instruct the second device to roam between APs.
  • the first device includes an AP or an AP MLD
  • the second device includes a STA or a Non-AP MLD.
  • the first wireless frame includes a first identifier bit, which is used to instruct the second device to roam between APs.
  • the first radio frame includes roaming parameters of at least one roaming target device; wherein the roaming parameters of the roaming target device include at least one of the following:
  • the roaming target device is located in the beacon interval of the first link; wherein, when the roaming target device is an AP, the first link is the communication link where the roaming target device is located, and when the roaming target device is an AP MLD, the first link is the communication link through which the second device communicates with the roaming target device after roaming to the roaming target device;
  • Address information of the roaming target device wherein, when the roaming target device is an AP, the address information includes the MAC address of the roaming target device; when the roaming target device is an AP MLD, the address information includes at least one of the following:
  • Link identifier of the communication link where each affiliated AP of the roaming target device is located is located.
  • the MAC address of the roaming target device is the MLD MAC address corresponding to the roaming target device.
  • the roaming parameters of the roaming target device when the roaming target device and the first device belong to different management logical entities, the roaming parameters of the roaming target device also include the identification information of the logical management entity to which the roaming target device belongs.
  • the first radio frame further includes at least one of the following:
  • the type field indicates that the frame type of the first radio frame is an Ultra-High Reliability Action (UHR) frame.
  • UHR Ultra-High Reliability Action
  • the protected UHR action field is used to indicate whether the first radio frame is a roaming notification frame or a handover notification frame.
  • the dialog token field is used to identify the session to which the first radio frame belongs
  • the first information element includes at least one of the following:
  • the first radio frame may include any one or more of the above-described type field, protected ultra-reliable action field, or conversation token field, without limitation.
  • the first device when the second device is a Non-AP MLD, can send the first wireless frame through any communication link between it and the second device.
  • the above method further includes:
  • the first request frame is used to request inter-AP roaming.
  • the first request frame can be a roaming request frame or a roaming transition request frame.
  • the first device can receive the first request frame through any communication link associated with the second device.
  • the above method further includes:
  • the first device may send a first response frame to the second device.
  • the first device after receiving the first request frame, the first device sends a first response frame to the second device to determine that the second device is roaming between APs.
  • the first response frame can be a roaming response frame or a roaming transition response frame.
  • the second device can receive the first response frame through any communication link associated with the first device.
  • the second device can perform inter-AP roaming according to the roaming parameters of the roaming target device.
  • the communication method involved in the embodiments of this disclosure may include the foregoing steps and at least one of the embodiments.
  • any one of steps S31-S32 may be implemented as an independent embodiment, but is not limited thereto.
  • Figure 4 is a second schematic flowchart illustrating a communication method according to an embodiment of this disclosure. As shown in Figure 4, the method is executed by a second device and includes:
  • the first device includes an AP or an AP MLD
  • the second device includes a STA or a Non-AP MLD.
  • the first wireless frame includes a first identifier bit, which is used to instruct the second device to roam between APs.
  • the first radio frame includes roaming parameters of at least one roaming target device; wherein the roaming parameters of the roaming target device include at least one of the following:
  • the roaming target device is located in the beacon interval of the first link; wherein, when the roaming target device is an AP, the first link is the communication link where the roaming target device is located, and when the roaming target device is an AP MLD, the first link is the communication link through which the second device communicates with the roaming target device after roaming to the roaming target device;
  • Address information of the roaming target device wherein, when the roaming target device is an AP, the address information includes the MAC address of the roaming target device; when the roaming target device is an AP MLD, the address information includes at least one of the following:
  • Link identifier of the communication link where each affiliated AP of the roaming target device is located is located.
  • the roaming parameters of the roaming target device when the roaming target device and the first device belong to different management logical entities, the roaming parameters of the roaming target device also include the identification information of the logical management entity to which the roaming target device belongs.
  • the first radio frame further includes at least one of the following:
  • the type field indicates that the frame type of the first radio frame is an Ultra-High Reliability Action (UHR) frame.
  • UHR Ultra-High Reliability Action
  • the protected UHR action field is used to indicate whether the first radio frame is a roaming notification frame or a handover notification frame.
  • the dialog token field is used to identify the session to which the first radio frame belongs
  • the first information element includes at least one of the following:
  • the first radio frame may include any one or more of the above-described type field, protected ultra-reliable action field, or conversation token field, without limitation.
  • the second device when the second device is a Non-AP MLD, the second device can receive the first wireless frame through any communication link with the first device.
  • the above method further includes:
  • the first request frame is used to request inter-AP roaming.
  • the first request frame can be a roaming request frame or a roaming transition request frame.
  • the second device can send the first request frame through any communication link associated with the first device.
  • the above method further includes:
  • Receive the first response frame which is used to respond to the first request frame.
  • the first response frame can be a roaming response frame or a roaming transition response frame.
  • the second device can receive the first response frame through any communication link associated with the first device.
  • the second device may perform inter-AP roaming according to the roaming parameters of the roaming target device.
  • the second device can perform inter-AP roaming based on the roaming parameters of each roaming target device in the first wireless frame. For example, if a first roaming target device is determined, the second device can roam from the first device to the first roaming target device according to its roaming parameters and conduct uplink and downlink communication with the first roaming target device.
  • Figure 5 is a schematic diagram of the structure of a communication device proposed in an embodiment of this disclosure.
  • the communication 500 can be the aforementioned first device, including: a processing module 510 and a transceiver module 520.
  • the processing module 510 is configured to determine a first radio frame, the first radio frame being used to instruct a second device to roam between access point devices (APs), the first device including an AP or a multi-connection access point device (AP MLD), and the second device including a site device (STA) or a multi-connection site device (Non-AP MLD).
  • APs access point devices
  • AP MLD multi-connection access point device
  • STA site device
  • Non-AP MLD non-AP MLD
  • the transceiver module 520 is configured to transmit a first wireless frame.
  • the processing module 510 is used to execute at least one of the processing steps (e.g., step S31, but not limited thereto) executed by the first device in any of the above methods, which will not be described in detail here.
  • the transceiver module 520 is used to execute at least one of the transceiver steps (e.g., steps S21, S23, and S32, but not limited thereto) executed by the first device in any of the above methods, which will not be described in detail here.
  • Figure 6 is a second schematic diagram of the communication device proposed in this embodiment.
  • the communication device 600 can be the aforementioned second device, including: a transceiver module 610.
  • the transceiver module 610 is configured to receive a first wireless frame, the first wireless frame being used to instruct the second device to perform inter-AP roaming, the first wireless frame being sent by a first device, the first device including an AP or an AP MLD, and the second device including a STA or a Non-AP MLD.
  • the transceiver module 610 is used to execute at least one of the transceiver steps (such as step S22, step S41, but not limited thereto) executed by the second device in any of the above methods, which will not be elaborated here.
  • units or modules can be implemented in the form of a processor calling software: for example, including a processor connected to memory, with instructions stored in the memory, and the processor calling the instructions stored in the memory to implement any of the above methods or to implement the functions of the above units or modules.
  • 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.
  • 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.
  • the hardware circuit is an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • 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.
  • 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.
  • PLD programmable logic device
  • the processor is a circuit with signal processing capabilities.
  • 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).
  • the processor can implement certain functions through the logical relationships of hardware circuits. These logical relationships are fixed or reconfigurable.
  • the processor may be a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the processor loading instructions.
  • NPU Neural Network Processing Unit
  • TPU Tensor Processing Unit
  • DPU Deep Learning Processing Unit
  • FIG. 7 is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.
  • the communication device 700 can be a first device or a second device, or it can be a chip, chip system, or processor that supports the first device or the second device in implementing any of the above methods.
  • the communication device can be used to implement the methods described in the above method embodiments, and for details, please refer to the description in the above method embodiments.
  • the communication device 700 includes one or more processors 701.
  • the processor 701 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU).
  • the baseband processor can be used to process communication protocols and communication data, while the CPU can 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.
  • the communication device 700 is used to execute any of the above methods.
  • the communication device 700 further includes one or more memories 702 for storing instructions.
  • the memories 702 may be located outside the communication device 700.
  • the communication device 700 further includes one or more transceivers 703.
  • the transceivers 703 perform at least one of the communication steps such as sending and/or receiving in the above method (e.g., steps S21-S23, step S32, step S41, but not limited thereto), and the processor 701 performs at least one of other steps (e.g., step S24, step S31, but not limited thereto).
  • a transceiver may include a receiver and/or a transmitter, which may be separate or integrated.
  • the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.
  • the communication device 700 may include one or more interface circuits 704.
  • the interface circuit 704 is connected to the memory 702, and the interface circuit 704 can be used to receive signals from the memory 702 or other devices, and can be used to send signals to the memory 702 or other devices.
  • the interface circuit 704 can read instructions stored in the memory 702 and send the instructions to the processor 701.
  • the communication device 700 described in the above embodiments may be a first network device or a second network device, but the scope of the communication device 700 described in this disclosure is not limited thereto, and the structure of the communication device 700 may not be limited by FIG. 7.
  • the communication device may be a standalone device or a part of a larger device.
  • the above-mentioned 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 above-mentioned IC collection may also include storage components for storing data and programs; (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.
  • FIG. 8 is a schematic diagram of the structure of the chip 800 proposed in an embodiment of this disclosure.
  • the chip 800 includes one or more processors 801, and the chip 800 is used to perform any of the above methods.
  • chip 800 further includes one or more interface circuits 803.
  • the interface circuit 803 is connected to memory 802, and the interface circuit 803 can be used to receive signals from memory 802 or other devices, and the interface circuit 803 can be used to send signals to memory 802 or other devices.
  • the interface circuit 803 can read instructions stored in memory 802 and send the instructions to processor 801.
  • the interface circuit 803 performs at least one of the communication steps such as sending and/or receiving in the above method (e.g., steps S21-S23, S32, S41, but not limited thereto), and the processor 801 performs at least one of other steps (e.g., steps S24, S31, but not limited thereto).
  • interface circuit In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.
  • chip 800 further includes one or more memories 802 for storing instructions.
  • all or part of the memories 802 may be located outside of chip 800.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices.
  • the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.
  • This disclosure also provides a program product that, when executed by the communication device 700, causes the communication device 700 to perform any of the above methods.
  • the program product is a computer program product.
  • This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.
  • the above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed.
  • Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente divulgation se rapportent au domaine technique des communications. Sont proposés des procédés et des dispositifs de communication, et un support de stockage. Un procédé de communication appliqué à un premier dispositif consiste à : déterminer une première trame radio, la première trame radio étant utilisée pour ordonner à un second dispositif d'effectuer une itinérance entre points d'accès (AP), un premier dispositif comprenant un AP ou un dispositif à liaisons multiples de point d'accès (MLD AP), le second dispositif comprenant une station (STA) ou un dispositif à liaisons multiples sans point d'accès (MLD non-AP) ; et envoyer la première trame radio. Les modes de réalisation de la présente divulgation peuvent proposer un procédé d'indication d'itinérance entre AP.
PCT/CN2024/089920 2024-04-25 2024-04-25 Procédés et dispositifs de communication, et support de stockage Pending WO2025222468A1 (fr)

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US20160270118A1 (en) * 2015-03-13 2016-09-15 Qualcomm Incorporated Low-latency time-sharing media access control
CN108471614A (zh) * 2017-02-23 2018-08-31 中兴通讯股份有限公司 一种信息发送方法及装置
CN113115298A (zh) * 2021-03-17 2021-07-13 北京小米移动软件有限公司 触发无线客户端漫游的方法、装置及存储介质
CN115516930A (zh) * 2020-03-04 2022-12-23 Lg电子株式会社 在无线通信系统中执行多链路通信的方法
CN117098115A (zh) * 2023-09-06 2023-11-21 普联技术有限公司 一种漫游控制方法、漫游控制装置、网络设备及存储介质

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Publication number Priority date Publication date Assignee Title
US20160270118A1 (en) * 2015-03-13 2016-09-15 Qualcomm Incorporated Low-latency time-sharing media access control
CN108471614A (zh) * 2017-02-23 2018-08-31 中兴通讯股份有限公司 一种信息发送方法及装置
CN115516930A (zh) * 2020-03-04 2022-12-23 Lg电子株式会社 在无线通信系统中执行多链路通信的方法
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