WO2023010345A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

Info

Publication number
WO2023010345A1
WO2023010345A1 PCT/CN2021/110614 CN2021110614W WO2023010345A1 WO 2023010345 A1 WO2023010345 A1 WO 2023010345A1 CN 2021110614 W CN2021110614 W CN 2021110614W WO 2023010345 A1 WO2023010345 A1 WO 2023010345A1
Authority
WO
WIPO (PCT)
Prior art keywords
wake
tdls
peer
message frame
information
Prior art date
Application number
PCT/CN2021/110614
Other languages
English (en)
French (fr)
Inventor
董贤东
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2021/110614 priority Critical patent/WO2023010345A1/zh
Priority to CN202180002264.9A priority patent/CN115943728A/zh
Publication of WO2023010345A1 publication Critical patent/WO2023010345A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of wireless communication, and more specifically, to a communication method and a communication device under multiple connections.
  • Wi-Fi technology 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc. It is expected to increase the rate and throughput by at least four times compared with the existing standards. Its main application scenarios are Video transmission, AR (Augmented Reality, augmented reality), VR (Virtual Reality, virtual reality), etc.
  • the aggregation and coordination of multiple frequency bands refers to the simultaneous communication between devices in the 2.4GHz, 5GHz, and 6GHz frequency bands.
  • a new MAC Media Access Control
  • a new MAC Media Access Control
  • the current multi-band aggregation and system technology will support a maximum bandwidth of 320MHz (160MHz+160MHz), and may also support 240MHz (160MHz+80MHz) and other bandwidths.
  • the station (STA: Station) and the access point (AP: Access Point) can be a multi-connection device (MLD: multi-link device), that is, it supports simultaneous sending and receiving under multiple connections at the same time. /or receive functions. Therefore, in the current technology, there may be multiple connections between the STA and the AP, and the communication between the two devices under the multiple connections is being researched.
  • MLD multi-connection device
  • a communication method including: determining and sending a first message frame under one connection among a plurality of connections; or receiving the first message frame under one connection among a plurality of connections, wherein, the first message frame includes support capability information for tunnel direct link setup (TDLS) peer-to-peer power saving mode under the multiple connections, wherein the multiple connections can support TDLS communication.
  • TDLS tunnel direct link setup
  • a communication device including: a processing module configured to: determine a first message frame under one connection among a plurality of connections, wherein the first message frame includes an indication Support capability information for TDLS peer-to-peer power saving mode under multiple connections, wherein the multiple connections can support TDLS communication; a transceiver module configured to: send the first message frame.
  • a communication device including: a transceiver module configured to: receive a first message frame under one connection among a plurality of connections, wherein the first message frame includes an indication Support capability information for TDLS peer-to-peer power saving mode under multiple connections, wherein the multiple connections can support TDLS communication; a processing module configured to: control execution of communication operations based on the first message frame.
  • an electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor implements the above method when executing the computer program.
  • a computer-readable storage medium storing instructions for performing various operations.
  • a computer program is stored on the computer readable storage medium.
  • the computer program is executed by the processor, the above-mentioned method is realized.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multi-connection according to an embodiment.
  • FIG. 2 is an exemplary diagram illustrating tunnel direct link setup (TDLS) according to an embodiment.
  • TDLS tunnel direct link setup
  • FIG. 3 is a flowchart illustrating a communication method according to an embodiment.
  • FIG. 4 is a flowchart illustrating a communication method according to an embodiment.
  • FIG. 5 is a flowchart illustrating a communication method according to an embodiment.
  • FIG. 6 is a flowchart illustrating a communication method according to an embodiment.
  • FIG. 7 is a flowchart illustrating a communication device according to an embodiment.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multi-connection according to an embodiment.
  • a basic service set may consist of an AP and one or more stations (STA) communicating with the AP.
  • a basic service set can be connected to the distribution system DS (Distribution System) through its AP, and then connected to another basic service set to form an extended service set ESS (Extended Service Set).
  • DS Distribution System
  • ESS Extended Service Set
  • An AP is a wireless switch for a wireless network and also an access device for a wireless network.
  • AP equipment can be used as a wireless base station, mainly used as a bridge for connecting wireless networks and wired networks. With this access point AP, wired and wireless networks can be integrated.
  • the AP may include software applications and/or circuitry to enable other types of nodes in the wireless network to communicate with the outside and inside of the wireless network through the AP.
  • the AP may be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity, wireless fidelity) chip.
  • Wi-Fi Wireless Fidelity, wireless fidelity
  • stations may include, but are not limited to: cellular phones, smart phones, wearable devices, computers, personal digital assistants (PDAs), personal communication system (PCS) devices, personal information managers (PIMs), personal navigation devices (PND), GPS, multimedia devices, Internet of Things (IoT) devices, etc.
  • PDAs personal digital assistants
  • PCS personal communication system
  • PIMs personal information managers
  • PND personal navigation devices
  • GPS GPS
  • multimedia devices Internet of Things (IoT) devices, etc.
  • IoT Internet of Things
  • APs and STAs may support multi-connected devices, for example, may be denoted as AP MLD and non-AP STA MLD, respectively.
  • AP MLD multi-connected devices
  • non-AP STA MLD multi-connected devices
  • the AP MLD may represent an access point supporting the multi-connection communication function
  • the non-AP STA MLD may represent a station supporting the multi-connection communication function.
  • AP MLD can work under three connections, such as the affiliated AP1, AP2 and AP3 shown in Figure 1
  • the non-AP STA MLD can also work under three connections, as shown in Figure 1, the affiliated STA1, STA2 and STA3.
  • AP1 and STA1 communicate through the corresponding first link Link 1.
  • AP2 and AP3 communicate with STA2 and STA3 through the second link Link 2 and the third link Link 3 respectively.
  • Link 1 to Link 3 can be multiple connections at different frequencies, for example, connections at 2.4GHz, 5GHz, and 6GHz, or several connections at the same or different bandwidths at 2.4GHz, 5GHz, and 6GHz. Additionally, multiple channels can exist under each connection.
  • an AP MLD may be connected to multiple non-AP STA MLDs, or under each connection, the AP Can communicate with several other types of sites.
  • non-AP STA MLD can support tunneled direct link setup (TDLS, tunneled direct link setup) function.
  • TDLS tunneled direct link setup
  • FIG. 2 an exemplary diagram of Tunnel Direct Link Setup (TDLS) according to an embodiment is shown.
  • tunnel direct link establishment can be realized between the first multi-connection site device non-AP STA MLD 1 and the second multi-connection site device non-AP STA MLD 2, so that direct connection between them can be performed. Communication (for example, data transmission) is performed without going through the multi-connection access point device AP MLD.
  • TDLS tunnel direct link establishment
  • both the first multi-association site device non-AP STA MLD 1 and the second multi-association site device non-AP STA MLD 2 are connected to the same multi-association access point device AP MLD , but the present disclosure is not limited thereto, for example, non-AP STA MLD 1 and non-AP STA MLD 2 may be respectively connected to different AP MLDs.
  • One of the first multi-connection site device non-AP STA MLD 1 and the second multi-connection site device non-AP STA MLD 2 can be used as the initiator of TDLS to perform a TDLS discovery request (TDLS discovery request), and the other can As the responder of TDLS, execute TDLS discovery response (TDLS discovery response), and then establish a channel direct link between them through the process of TDLS establishment.
  • the process of TDLS setup may include: TDLS setup request (TDLS setup request), TDLS setup response (TDLS setup response) and TDLS setup confirmation (TDLS setup confirm).
  • the STA that establishes the TDLS connection may be in a PS (power save, power saving) mode under the established connection. That is to say, non-AP STA MLD will support TDLS, and correspondingly support PS mode, but because the existing mechanism only supports single connection operation, and the current research equipment supports multi-connection communication, so the corresponding PS mechanism also needs Adapt to multiple connections.
  • PS power save, power saving
  • FIG. 3 is a flowchart illustrating a communication method according to an embodiment.
  • the communication method shown in FIG. 3 can be applied to the sender.
  • the sender may be a "TDLS establishment requester" or a "TDLS establishment responder”.
  • a first message frame is determined under one connection among multiple connections; in step 320, the first message frame is sent.
  • the connection used to send the first message frame may be the same as or different from the connection used to determine the first message frame, which is not specifically limited in the present disclosure.
  • the first message frame may include: information indicating the support capability of the TDLS peer-to-peer power saving mode under multiple connections, where the multiple connections can support TDLS communication. That is to say, in the embodiments of the present disclosure, multiple connections may refer to multiple connections for TDLS communication supported by the non-AP STA MLD to which the sender belongs (hereinafter may be referred to as "TDLS connections"). In the following, TDLS peer-to-peer PSM can be mixed with power saving mode.
  • the first message frame may be a TDLS establishment request (TDLS setup request) frame, and the first message frame It may carry information about the support capability of the TDLS establishment requester for the TDLS peer-to-peer PSM under multiple connections.
  • the first message frame may be a TDLS setup response (TDLS setup responder) frame, and the first message frame It may carry the support capability information of the TDLS establishment responder for the TDLS peer PSM under multiple connections.
  • the present disclosure is not limited thereto, and other frames capable of realizing TDLS communication are also feasible.
  • the first message frame may be generated according to at least one of the following conditions: network conditions, load conditions, and hardware capabilities of sending/receiving devices , business type, and related agreement provisions; this embodiment of the present disclosure does not make specific limitations.
  • the first message frame may also be acquired from an external device, which is not specifically limited in this embodiment of the present disclosure.
  • the first message frame is a TDLS establishment request frame or a TDLS establishment response frame as an example for description.
  • the above-mentioned support capability information may be carried in the form of an information element (for example, an extended capability (extended capability) information element).
  • the extended capability information element may have a format as shown in Table 1 below.
  • the extended capability information element may include: an element identifier (Element ID) identifying the extended capability information element, a length field (Length) representing the length information of the extended capability information element, and an extended capability field (Extended Capability). It is shown in Table 1 that both the element identifier and the length field have a size of 1 byte and the size of the extension capability field is variable, but the present disclosure is not limited thereto, and the size of each field can be different according to the information parameters actually carried Change.
  • the extended capability field is set to different values to represent different capabilities of the corresponding device.
  • the extended capability field may indicate the capability of the TDLS establishment requester; in the case where the first message frame is a TDLS establishment response frame, the extended capability field may indicate the TDLS establishment response Fang's ability.
  • the extended capability field when the extended capability field is set to the first specific value (such as but not limited to "29"), it may indicate the TDLS Peer PSM Support subfield (TDLS Peer PSM Support subfield), which indicates that under multiple connections for TDLS peer-to-peer power saving mode support capability information.
  • the first specific value such as but not limited to "29”
  • TDLS Peer PSM Support subfield TDLS Peer PSM Support subfield
  • the TDLS peer-to-peer power saving mode activation source for example, dot11TDLSPeerPSMActivated
  • a first specific value such as but not limited to "true (true)”
  • TDLS If the peer-to-peer PSM support subfield is set to a second specific value (such as but not limited to "1"
  • the TDLS peer-to-peer power saving mode activation source can be set at the MAC layer.
  • "Supporting the TDLS peer-to-peer power saving mode under multiple connections” may refer to supporting the TDLS peer-to-peer power saving mode under the current connection that determines (sends) the first message frame or the connection enabled during the establishment of multiple TDLS connections. If the support capability information (TDLS peer PSM support subfield) is set to a third specific value (such as but not limited to "0"), it indicates that TDLS peer power saving mode is not supported under this connection or under an enabled connection . In other words, the PS mode is marked at the MLD level, not at the link level, that is, PS modes (MLD level) under multiple connections can be set under one connection.
  • MLD level PS modes
  • the non-AP STA MLD will reuse the PSM bit (e.g., TDLS peer PSM support subfield) in the extended capability information element of the TDLS setup request frame and the TDLS setup response frame to identify the non-AP STA MLD supports PS mode, and supports PS mode under all connections, that is, PS mode is identified as MLD level, not link level.
  • PSM bit e.g., TDLS peer PSM support subfield
  • FIG. 4 is a flowchart illustrating a communication method according to an embodiment.
  • the communication method shown in FIG. 4 can be applied to the receiving side.
  • the recipient may be a "TDLS establishment requester" or a "TDLS establishment responder”.
  • a first message frame is received under one of a plurality of connections.
  • Multiple connections may refer to multiple TDLS connections.
  • the first message frame may be a TDLS establishment response frame, and the first message frame may carry the TDLS establishment responding party's support capability information for the TDLS peer PSM under multiple connections .
  • the first message frame may be a TDLS establishment request frame, and the first message frame may carry the TDLS establishment request party's support capability information for the TDLS peer PSM under multiple connections .
  • the first message frame and the supporting capability information it carries may be similar to the embodiment described with reference to FIG. 3 and Table 1, and repeated descriptions are omitted here to avoid redundancy.
  • a communication operation may be performed based on the first message frame.
  • the receiver may determine the capabilities supported by the sender based on the information carried in the first message frame, and perform operations based on the capabilities of the sender in subsequent communications.
  • FIG. 3 or FIG. 4 may further include: obtaining a second message frame under one of the multiple connections, wherein the second message frame may include a connection with at least one of the multiple connections Corresponding periodic wake-up information.
  • obtaining a second message frame under one of the multiple connections wherein the second message frame may include a connection with at least one of the multiple connections Corresponding periodic wake-up information.
  • FIG. 5 is a flowchart illustrating a communication method according to an example embodiment.
  • the communication method shown in FIG. 5 can be applied to a TDLS peer PSM initiator (TDLS peer PSM initiator).
  • TDLS peer PSM initiator refers to the STA that will enter the power saving mode.
  • any one of the TDLS establishment requester and the TDLS establishment responder may serve as the TDLS peer-to-peer PSM initiator.
  • the above-mentioned communication method shown in FIG. 3 may further include the communication method shown in FIG. 5 Communication method shown.
  • the receiving party performing the communication method shown in FIG. 4 is about to enter the power saving mode (that is, the receiving party is a TDLS peer-to-peer PSM initiator)
  • the above-mentioned communication method shown in FIG. 4 may further include FIG. 5 Communication method shown.
  • a second message frame is determined under one of the multiple connections (ie, the second message frame is acquired); in step 520, the second message frame is sent.
  • the connection used to send the second message frame may be the same as or different from the connection used to determine the second message frame, which is not specifically limited in the present disclosure.
  • the second message frame may be a TDLS peer PSM request (TDLS peer PSM Request) frame.
  • the second message frame may include periodic wakeup information corresponding to at least one connection among the plurality of connections.
  • Multiple connections can refer to multiple TDLS connections supported by the non-AP STA MLD to which the TDLS peer PSM initiator belongs.
  • At least one connection may refer to a TDLS connection to enter power saving mode.
  • periodic wake-up information of this connection or other connections can be negotiated under one connection.
  • the periodic wakeup information corresponding to at least one connection among the multiple connections may be carried in the second message frame in the form of an information element.
  • the following uses a wakeup schedule information element as an example to describe periodic wakeup information.
  • the wakeup plan information element may have a format as shown in Table 2 below.
  • the wake-up plan information element may include: an element identifier (Element ID) identifying the wake-up plan information element, a length field (Length) indicating the length information of the wake-up plan information element, and periodic wake-up information.
  • element ID element identifier
  • Length length field
  • the meaning of the periodic wakeup information may be: wake up periodically to receive/transmit data during a specific period when the corresponding STA is in the power saving mode.
  • the specific time period may be defined in units of wake-up windows, and hereinafter, the specific time period may also be referred to as “wake-up time”.
  • the periodic wake-up information may include: a connection identifier (for example, Link ID1, Link ID2 in Table 2) corresponding to each connection to enter the TDLS peer-to-peer power saving mode, and the wake-up time relevant information.
  • a connection identifier for example, Link ID1, Link ID2 in Table 2
  • the connection identifier may have multiple bits to identify the combined information of the working frequency spectrum, bandwidth/channel, and/or BSSID.
  • the connection to enter the TDLS peer-to-peer power saving mode may be identified in the form of a link set (Link set).
  • the connection group may include bits corresponding to multiple TDLS connections, and when the corresponding bit is set to a specific value (such as but not limited to "1"), it may indicate that the corresponding connection will enter the TDLS peer-to-peer power saving mode.
  • two connections that is, connections identified by Link ID1 and Link ID2 respectively
  • the present disclosure is not limited thereto, and more or fewer connection identifiers may be included in Table 2.
  • the information related to the wake-up time includes: wake-up window start information, wake-up window end information, and wake-up window quantity information.
  • the wake-up window start information may include an offset identifier (Offset) and an interval identifier (Interval).
  • the offset identifier (Offset) is set based on a timing synchronization function (TSF, timing synchronization function) parameter.
  • TSF timing synchronization function
  • the offset identifier (Offset) may be the time between TSF 0 and the start moment of the first wake-up window, and its unit may be microsecond.
  • the interval identifier (Interval) may be set as the time between the start moments of two consecutive wake-up windows, and its unit may be microsecond.
  • the wake-up window starts at the TSF value, and the TSF value satisfies a condition determined based on the TSF value, the offset identifier, and the interval identifier.
  • the TSF parameter is carried and broadcast by the AP MLD in a beacon frame, and is consistent with the non-AP STA MLD that has established multi-connection communication with the AP MLD.
  • the wake-up window end information may include an wake-up window slot (Awake window slot) and a maximum wake-up window duration (Maximum awake window duration).
  • the wakeup window slot (Awake window slot) may be set as the duration of the wakeup window in units of backoff slots.
  • the maximum awake window duration (Maximum awake window duration) may be set as the duration of the awake window in units of microseconds.
  • the end of the wake-up window may be defined by a wake-up window time slot and/or a maximum wake-up window duration.
  • the wake-up window ends when the wake-up window slot counter reaches 0 or when the maximum wake-up window duration is reached (whichever comes first).
  • the wake-up window slot counter can count down.
  • the start value of the Awake window slot counter at the beginning of the Awake window shall be equal to the value of Awake window slot (Awake window slot) in Table 2.
  • the wake-up window slot counter counts at the beginning of the wake-up window and stops counting when it reaches 0.
  • the end of the wake-up window may be defined by the other.
  • the wake-up window number information (for example, the idle number (Idle count) in Table 2) is set as the number of consecutive wake-up windows, wherein, before the wake-up plan is deleted, the number of consecutive wake-up windows During this period, a single addressed frame (addressed frame) will not be received. That is to say, the wake-up window number information may indicate how many consecutive wake-up windows the device remains in the wake-up state, wherein the period of each wake-up window may be defined by the wake-up window start information and wake-up window end information described above.
  • the idle count (Idle count)
  • the peer non-AP STA MLD identifying one or more connections to establish PS mode is active.
  • Power save mode (eg, in sleep state) may be maintained at times other than multiple consecutive wake-up windows defined by the idle count.
  • the information related to the wake-up time may be set to be the same or different under at least one connection to enter the power saving mode.
  • the format of the wake-up plan information element shown in Table 2 may be variously changed accordingly.
  • a single offset identifier, a single interval identifier, a single wake-up window time slot, a single maximum wake-up window duration, a single idle number, and a single connection identifier can be included .
  • the wake-up time-related information respectively corresponding to the multiple connections may be included. That is to say, it may include an offset identifier, an interval identifier, a wake-up window time slot, a maximum wake-up window duration, an idle number, and a connection identifier corresponding to each of the multiple connections.
  • some of the information parameters in the information related to the wake-up time can be multiple, and the other part of the information parameters in the information related to the wake-up time can be for single.
  • the offset identifier, the interval identifier, the time slot of the wake-up window and the maximum duration of the wake-up window can all be single, while the idle number and the connection identifier can be multiple (the number of which is equal to the number of connections to enter the power saving mode).
  • the offset identifier, the interval identifier, the wake-up window time slot, the maximum wake-up window duration and the number of idles can all be single, while the connection-only identifiers can be multiple (the number of which is equal to the number of connections to enter the power saving mode) .
  • a single information parameter may apply to multiple connections (i.e., a single information parameter is the same across connections), and multiple information parameters may apply to corresponding connections among the multiple connections.
  • the idle count When the idle count is single and the connection identifier is multiple, it can indicate that the wake-up window quantity information (the idle count (Idle count) in Table 2) can be applied to multiple connections (multiple connections to enter the power saving mode). In this case, the number of wake-up windows under each connection to enter the TDLS peer-to-peer power saving mode is less than or equal to the value indicated by the number of wake-up windows information.
  • the single Idle count in Table 2 can refer to the maximum value, that is, the number of consecutive wake-up windows under each connection (that is, the Idle count in Table 2) can be different Or the same, but the number of consecutive wake-up windows under each connection is less than or equal to the setting value of Idle count in Table 2.
  • the present disclosure is not limited thereto.
  • the number of consecutive wake-up windows under multiple connections to enter the power saving mode can be set to be consistent , that is, equal to the setting value of a single idle count (Idle count).
  • FIG. 6 is a flowchart illustrating a communication method according to an example embodiment.
  • the communication method shown in FIG. 5 can be applied to a TDLS peer PSM responder (TDLS peer PSM responder).
  • the TDLS peer PSM responder refers to the STA that performs TDLS communication with the STA that will enter the power saving mode.
  • any one of the TDLS setup requester and the TDLS setup responder may serve as the TDLS peer-to-peer PSM responder.
  • the initiator executing the communication method shown in FIG. 3 is a STA that performs TDLS communication with the STA that will enter the power saving mode (that is, the initiator is the TDLS peer-to-peer PSM responder)
  • the communication method shown in FIG. 6 may further include the communication method shown in FIG. 6 .
  • the receiver performing the communication method shown in FIG. 4 is a STA performing TDLS communication with a STA that is about to enter the power saving mode (that is, the receiver is a TDLS peer-to-peer PSM responder)
  • the above-mentioned FIG. 4 may further include the communication method shown in FIG. 6 .
  • the second message frame may be received under one connection among the plurality of connections (ie, the second message frame is acquired). Multiple connections can be multiple TDLS connections supported by the non-AP STA MLD to which the TDLS peer PSM responder belongs.
  • the second message frame may be a TDLS peer PSM request (TDLS peer PSM Request) frame.
  • the second message frame may include periodic wakeup information corresponding to at least one of the plurality of connections.
  • the at least one connection refers to a connection that will enter the power saving mode.
  • the second message frame may carry periodic wake-up information suggested by the TDLS peer PSM initiator, and the TDLS peer PSM responder may receive the second message frame from the TDLS peer PSM receiver, and obtain information about the Periodic wakeup message for one or more connections in power saving mode.
  • the periodic wake-up information may have various information parameters as shown in Table 2, and repeated descriptions are omitted here for simplicity.
  • response information for the second message frame may be sent.
  • the TDLS peer-to-peer PSM responder accepts the periodic wake-up information suggested in the second message frame, it can be carried out by carrying the response information about the acceptance (for example, the status code indicating success "SUCCESS") in the TDLS corresponding PSM response frame. Response; otherwise, it will carry response information about the rejection.
  • a respective power saving mode may also be established under each connection to be in the power saving mode, that is, information related to the wake-up window is negotiated under each connection (that is, information about the wake-up window is negotiated under each connection)
  • the next transmission TDLS corresponds to the PSM request frame and TDLS corresponds to the PSM response frame).
  • the wake-up plan information element may be made compatible with legacy sites (eg, sites that only support single-connection communication), but more signaling may be required.
  • FIG. 7 is a block diagram illustrating a communication device 700 according to an embodiment of the present disclosure.
  • a communication device 700 may include a processing module 710 and a transceiving module 720 .
  • the communication device shown in FIG. 7 can be applied to the sender, and can execute the communication method shown in FIG. 3 .
  • the processing module 710 may be configured to determine the first message frame under one of the multiple connections
  • the transceiving module 720 may be configured to send the first message frame.
  • the first message frame may include information indicating the support capability of the TDLS peer-to-peer power saving mode under multiple connections, wherein the multiple connections are capable of supporting TDLS communication.
  • the first message frame and the supporting capability information included therein may be similar to the embodiment described with reference to FIG. 3 and Table 1, and repeated descriptions are omitted here for brevity.
  • the communication device shown in FIG. 7 is applied to a receiver, and the communication method described with reference to FIG. 4 can be performed.
  • the transceiving module 720 may be configured to receive a first message frame under one connection among multiple connections
  • the processing module 710 may be configured to control execution of a communication operation based on the first message frame.
  • the first message frame may include information indicating the support capability of the TDLS peer-to-peer power saving mode under multiple connections, wherein the multiple connections are capable of supporting TDLS communication.
  • the first message frame and the supporting capability information included therein may be similar to the embodiment described with reference to FIG. 4 and Table 1, and repeated descriptions are omitted here for brevity.
  • the communication device shown in FIG. 7 can be applied to a TDLS peer-to-peer PSM initiator, and can execute the communication method described with reference to FIG. 5 .
  • the processing module 710 may be configured to determine the second message frame under one of the multiple connections; the transceiving module 720 may be configured to send the second message frame.
  • the second message frame may include periodic wakeup information corresponding to at least one of the plurality of connections.
  • the second message frame and the periodic wake-up information included therein may be similar to the embodiment described with reference to FIG. 5 and Table 2, and repeated descriptions are omitted here for brevity.
  • the communication device shown in FIG. 7 may be applied to a TDLS peer-to-peer PSM responder, and may execute the communication method described with reference to FIG. 6 .
  • the transceiver module 720 may be configured to receive a second message frame under one of the multiple connections, where the second message frame may include periodic wake-up information corresponding to at least one of the multiple connections;
  • the module 710 may be configured to determine whether to accept the wake-up period information suggested in the second message frame, and control the transceiving module 720 to send response information for the second message frame.
  • the second message frame and the periodic wake-up information included therein may be similar to the embodiment described with reference to FIG. 6 and Table 2, and repeated descriptions are omitted here for brevity.
  • the communication device 700 shown in FIG. 7 is only exemplary, and embodiments of the present disclosure are not limited thereto.
  • the communication device 700 may also include other modules, such as a memory module.
  • various modules in the communication device 700 may be combined into more complex modules, or may be divided into more individual modules.
  • the communication method and communication device enable a device to be in a PS mode when a TDLS connection is established, so as to save power and improve spectrum utilization.
  • the embodiments of the present disclosure also provide an electronic device, which includes a processor and a memory; wherein, the memory stores machine-readable instructions (may also be referred to as the “computer program”); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 3-6 .
  • the memory stores machine-readable instructions (may also be referred to as the “computer program”); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 3-6 .
  • Embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored.
  • a computer program is stored.
  • the methods described with reference to FIGS. 3 to 6 are implemented.
  • a processor may be used to implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the present disclosure, for example, CPU (Central Processing Unit, central processing unit), general processing DSP (Digital Signal Processor, Data Signal Processor), ASIC (Application Specific Integrated Circuit, Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array, Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • the processor may also be a combination that realizes computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and the like.
  • the memory may be, for example, ROM (Read Only Memory, Read Only Memory), RAM (Random Access Memory, Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory, Electrically Erasable Programmable Only Memory) read memory), CD-ROM (Compact Disc Read Only Memory, read-only disc) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage medium or other magnetic A storage device, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • ROM Read Only Memory, Read Only Memory
  • RAM Random Access Memory
  • EEPROM Electrically Erasable Programmable Only Memory
  • CD-ROM Compact Disc Read Only Memory, read-only disc
  • optical disc storage including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • magnetic disk storage medium or other magnetic A storage device or any other medium that

Landscapes

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

Abstract

本申请提供一种通信方法和通信装置。所述通信方法可以包括：在多个连接中的一个连接下确定以及发送第一消息帧。所述第一消息帧包括指示在所述多个连接下对于通道直接链路建立(TDLS)对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信。

Description

通信方法和通信装置 技术领域
本公开涉及无线通信领域，更具体地说，涉及一种多连接下的通信方法和通信装置。
背景技术
目前的Wi-Fi技术所研究的范围为：320MHz的带宽传输、多个频段的聚合及协同等，期望能够相对于现有的标准提高至少四倍的速率以及吞吐量，其主要的应用场景为视频传输、AR(Augmented Reality，增强现实)、VR(Virtual Reality，虚拟现实)等。
多个频段的聚合及协同是指设备间同时在2.4GHz、5GHz及6GHz等的频段下进行通信，对于设备间同时在多个频段下通信需要定义新的MAC(Media Access Control，介质访问控制)机制来进行管理。此外，还期望多频段的聚合及协同能够支持低时延传输。
目前多频段的聚合及系统技术中将支持的最大带宽为320MHz(160MHz+160MHz)，此外还可能会支持240MHz(160MHz+80MHz)及其它带宽。
在目前的技术中，站点(STA：Station)和接入点(AP：Access Point)可以是多连接设备(MLD：multi-link device)，即，支持在同一时刻能够在多连接下同时发送和/或接收的功能。因此，在目前的技术中，STA与AP之间可以存在多个连接，并且正在对这两种设备在多连接下的通信进行研究。
发明内容
本公开的各方面将至少解决上述问题和/或缺点。本公开的各种实施例提供以下技术方案：
根据本公开的示例实施例提供一种通信方法，包括：在多个连接中的一个连接下确定以及发送第一消息帧；或在多个连接中的一个连接下接收所述第一消息帧，其中，所述第一消息帧包括指示在所述多个连接下对于通道直接链路建立(TDLS)对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信。
根据本公开的示例实施例提供一种通信装置，包括：处理模块，被配置为：在多个连接中的一个连接下确定第一消息帧，其中，所述第一消息帧包括指示在所述多个连接下对于TDLS对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信；收发模块，被配置为：发送所述第一消息帧。
根据本公开的示例实施例提供一种通信装置，包括：收发模块，被配置为：在多个连接中的一个连接下接收第一消息帧，其中，所述第一消息帧包括指示在所述多个连接下对于TDLS对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信；处理模块，被配置为：基于所述第一消息帧控制通信操作的执行。
根据本公开的示例实施例提供了一种电子装置。所述电子装置包括存储器、处理器及存储在所述存储器上并在所述处理器上可运行的计算机程序。所述处理器执行所述计算机程序时实现如上所述的方法。
根据本公开的示例实施例提供了一种计算机可读存储介质。所述计算机可读存储介质上存储有计算机程序。该计算机程序被处理器执行时实现如上所述的方法。
附图说明
通过参照附图详细描述本公开的示例实施例，本公开实施例的上述以及其他特征将更加明显，其中：
图1是示出根据实施例的多连接下的通信场景的示例性示图。
图2是示出根据实施例的通道直接链路建立(TDLS)的示例性示图。
图3是示出根据实施例的通信方法的流程图。
图4是示出根据实施例的通信方法的流程图。
图5是示出根据实施例的通信方法的流程图。
图6是示出根据实施例的通信方法的流程图。
图7是示出根据实施例的通信装置的流程图。
具体实施方式
提供以下参照附图的描述，以帮助全面理解由所附权利要求及其等同物限定的本公开的各种实施例。本公开的各种实施例包括各种具体细节，但是这些具体细节仅被认为是示例性的。此外，为了清楚和简洁，可以省略对公知的技术、功能和构造的描述。
在本公开中使用的术语和词语不限于书面含义，而是仅被发明人所使用，以能够清楚和一致的理解本公开。因此，对于本领域技术人员而言，提供本公开的各种实施例的描述仅是为了说明的目的，而不是为了限制的目的。
应当理解，除非上下文另外清楚地指出，否则这里使用的单数形式“一”、“一个”、“所述”和“该”也可以包括复数形式。应该进一步理解的是，本公开中使用的措辞“包括”是指存在所描述的特征、整数、步骤、操作、元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。
将理解的是，尽管术语“第一”、“第二”等在本文中可以用于描述各种元素，但是这些元素不应受这些术语的限制。这些术语仅用于将一个元素与另一个元素区分开。因此，在不脱离示例实施例的教导的情况下，下面讨论的第一元素可以被称为第二元素。
应该理解，当元件被称为“连接”或“耦接”到另一元件时，它可以直接连接或耦接到其他元件，或者也可以存在中间元件。此外，这里使用的“连接”或“耦接”可以包括无线连接或无线耦接。这里使用的术语“和/或”或者表述“……中的至少一个/至少一者”包括一个或多个相关列出的项目的任何和所有组合。
除非另外定义，这里使用的所有术语(包括技术术语和科学术语)，具有与本公开所属领域中的普通技术人员的一般理解相同的意义。
图1是示出根据实施例的多连接下的通信场景的示例性示图。
在无线局域网中，一个基本服务集(BSS)可以由AP以及与AP通信的一个或多个站点(STA)构成。一个基本服务集可以通过其AP连接到分配系统DS(Distribution System)，然后再接入到另一个基本服务集，构成扩展的服务集ESS(Extended Service Set)。
AP是用于无线网络的无线交换机，也是无线网络的接入设备。AP设备可以用作无线基站，主要是用来连接无线网络及有线网络的桥接器。利用这种接入点AP，可以整合有线及无线网络。
AP可以包括软件应用和/或电路，以使无线网络中的其他类型节点可以通过AP与无线网络外部及内部进行通信。在一些示例中，作为示例，AP可以是配备有Wi-Fi(Wireless Fidelity，无线保真)芯片的终端设备或网络设备。
作为示例，站点(STA)可以包括但不限于：蜂窝电话、智能电话、可穿戴设备、计算机、个人数字助理(PDA)、个人通信系统(PCS)设备、个人信息管理器(PIM)、个人导航设备(PND)、全球定位系统、多媒体设备、物联网(IoT)设备等。
在本公开的示例实施例中，AP和STA可以支持多连接的设备，例如，可以被分别表示为AP MLD和non-AP STA MLD。为了便于描述，在下文中，主要描述一个AP与一个STA在多连接下进行通信的示例，然而，本公开的示例实施例不限于此。
在图1中，仅作为示例性的，AP MLD可以表示支持多连接通信功能的接入点，non-AP STA MLD可以表示支持多连接通信功能的站点。参照图1，AP MLD可以工作在三个连接下，如图1所示的附属AP1、AP2和AP3，non-AP STA MLD也可以工作在三个连接下，如图1所示的附属STA1、STA2和STA3。在图1的示例中，假设AP1与STA1通过对应的第一连接Link 1进行通信，类似地，AP2和AP3分别通过第二连接Link 2和第三连接Link 3与STA2和STA3进行通信。此外，Link 1至Link 3可以是不同频率下的多个连接，例如，2.4GHz、5GHz、6GHz下的连接等，或2.4GHz、5GHz、6GHz下的几个相同或不同带宽的连接。此外，在每个连接下可以存在多个信道。然而，应该理解的是，图1所示的通信场景仅是示例性的，本发明构思不限于此，例如，AP MLD可以连接到多个non-AP STA MLD，或者在每个连接下，AP可以与多个其他类型的站点进 行通信。
为了提高传输效率，non-AP STA MLD可以支持通道直接链路建立(TDLS，tunneled direct link setup)功能。如图2所示，示出了根据实施例的通道直接链路建立(TDLS)的示例性示图。
参照图2，可以在第一多连接站点设备non-AP STA MLD 1与第二多连接站点设备non-AP STA MLD 2之间实现通道直接链路建立(TDLS)，从而可以在他们之间直接进行通信(例如，数据的传输)，而不需要经过多连接接入点设备AP MLD。将理解，虽然在图2中示出了，第一多连接站点设备non-AP STA MLD 1以及第二多连接站点设备non-AP STA MLD 2均连接到了同一多连接接入点设备AP MLD，但是本公开不限于此，例如，non-AP STA MLD 1和non-AP STA MLD 2可以分别连接到不同的AP MLD。
第一多连接站点设备non-AP STA MLD 1和第二多连接站点设备non-AP STA MLD 2中的一者可以作为TDLS的发起方来执行TDLS发现请求(TDLS discovery request)，另一者可以作为TDLS的响应方来执行TDLS发现响应(TDLS discovery response)，然后经过TDLS建立的过程在他们之间建立通道直接链路。例如，TDLS建立的过程可以包括：TDLS建立请求(TDLS setup request)、TDLS建立响应(TDLS setup response)以及TDLS建立确认(TDLS setup confirm)。
建立TDLS连接的STA可以在已经建立的连接下处于PS(power save，省电)模式。也就是说，non-AP STA MLD将支持TDLS，相应的也会支持PS模式，但由于现有的机制只支持单连接操作，而目前研究的设备支持多连接通信，所以相应的PS机制也需适应多连接。
图3是示出根据实施例的通信方法的流程图。图3所示的通信方法可以应用于发送方。根据本公开的实施例，发送方可以是“TDLS建立请求方”或者“TDLS建立响应方”。
参照图3，在步骤310中，在多连接中的一个连接下确定第一消息帧；在步骤320中，发送第一消息帧。在本公开的实施例中，用于发送第一消息帧的连接可以与用于确定第一消息帧的连接相同或者不同，对此本公开不做具体限制。
根据本公开的实施例，第一消息帧可以包括：指示在多个连接下对于TDLS对等省电模式的支持能力信息，其中，多个连接能够支持TDLS通信。 也就是说，在本公开的实施例中，多个连接可以是指发送方所属的non-AP STA MLD支持的用于TDLS通信的多个连接(在下文可以称为“TDLS连接”)。在下文中，TDLS对等PSM可以与省电模式混用。
例如，当图3所示的通信方法应用于TDLS建立请求方(即，发送方为TDLS建立请求方)时，第一消息帧可以是TDLS建立请求(TDLS setup request)帧，并且第一消息帧可以携带TDLS建立请求方在多个连接下对于TDLS对等PSM的支持能力信息。例如，当图3所示的通信方法应用于TDLS建立响应方(即，发送方为TDLS建立响应方)时，第一消息帧可以是TDLS建立响应(TDLS setup responder)帧，并且第一消息帧可以携带TDLS建立响应方在多个连接下对于TDLS对等PSM的支持能力信息。然而本公开不限于此，能够实现TDLS通信的其他帧也是可行的。
在本公开的实施例中，确定第一消息帧的方式可以有很多种，例如：可以根据以下的至少一种情况来生成第一消息帧：网络情况、负载情况、发送/接收设备的硬件能力、业务类型、相关协议规定；对此本公开实施例不作具体限制。在本公开的实施例中，还可以从外部设备获取该第一消息帧，对此本公开实施例不作具体限制。
在下文中，为了方便，以第一消息帧是TDLS建立请求帧或者TDLS建立响应帧为例进行描述。在这样的实施例中，在TDLS建立请求帧或者TDLS建立响应帧中，可以通过信息元素(例如，扩展能力(extended capability)信息元素)的方式来携带上述的支持能力信息。例如，扩展能力信息元素可以具有如下面的表1所示的格式。
表1.扩展能力信息元素的格式
Figure PCTCN2021110614-appb-000001
参照表1，扩展能力信息元素可以包括：标识扩展能力信息元素的元素标识(Element ID)、表示扩展能力信息元素的长度信息的长度域(Length)、以及扩展能力域(Extended Capability)。在表1中示出了元素标识和长度域均具有1字节大小并且扩展能力域的大小是可变的，但是本公开不限于此，各个域的大小可以根据实际携带的信息参数而不同地改变。
扩展能力域被设置为不同的值可以表示相应设备的不同能力。例如，在 第一消息帧为TDLS建立请求帧的情况下，扩展能力域可以表示TDLS建立请求方的能力；在第一消息帧为TDLS建立响应帧的情况下，扩展能力域可以表示TDLS建立响应方的能力。
例如，当扩展能力域被设置为第一特定值(例如但不限于“29”)时，可以表示TDLS对等PSM支持子域(TDLS Peer PSM Support子域)，其指示在多个连接下对于TDLS对等省电模式的支持能力信息。根据本公开的实施例，当TDLS对等省电模式激活源语(例如，dot11TDLSPeerPSMActivated)被设置为第一特定值(例如但不限于“真(true)”)时，并且在支持能力信息(TDLS对等PSM支持子域)被设置为第二特定值(例如但不限于“1”)的情况下，标识在多个连接下支持TDLS对等省电模式。TDLS对等省电模式激活源语(dot11TDLSPeerPSMActivated)可以在MAC层进行设置。“在多个连接下支持TDLS对等省电模式”可以指在确定(发送)第一消息帧的本连接下或者在多个TDLS连接建立过程中启用的连接下支持TDLS对等省电模式。如果支持能力信息(TDLS对等PSM支持子域)被设置为第三特定值(如但不限于“0”)，则指示在本连接下或者在启用的连接下不支持TDLS对等省电模式。换言之，PS模式标识为MLD级的，而不是link级的，也就是说，可以在一个连接下设置多个连接下的PS模式(MLD级)。
根据本公开的实施例，non-AP STA MLD会重用在TDLS setup request帧及TDLS setup response帧的扩展能力信息元素中的PSM位(例如，TDLS对等PSM支持子域)来标识non-AP STA MLD支持PS模式，并且在所有连接下支持PS模式，即，PS模式标识为MLD级，而不是link级。
图4是示出根据实施例的通信方法的流程图。图4所示的通信方法可以应用于接收方。根据本公开的实施例，接收方可以是“TDLS建立请求方”)或者“TDLS建立响应方”。
参照图4，在步骤410中，在多个连接中的一个连接下接收第一消息帧。多个连接可以指多个TDLS连接。例如，在接收方是TDLS建立请求方的情况下，第一消息帧可以是TDLS建立响应帧，并且第一消息帧可以携带TDLS建立响应方在多个连接下对于TDLS对等PSM的支持能力信息。例如，在接收方是TDLS建立响应方的情况下，第一消息帧可以是TDLS建立请求帧，并且第一消息帧可以携带TDLS建立请求方在多个连接下对于TDLS对等PSM的支持能力信息。第一消息帧及其携带的支持能力信息可以类似于参照图3和表 1描述的实施例，在此省略重复的描述，以避免冗余。
在步骤420中，可以基于第一消息帧执行通信操作。例如，接收方可以基于第一消息帧中携带的信息，确定发送方支持的能力，并且在随后的通信中基于发送方的能力来执行操作。
通过图3和图4所示的通信方法，在发送方与接收方之间、或者在TDLS建立请求方与TDLS建立响应方之间，可以交换在多个连接(多个TDLS连接)下对于TDLS对等省电模式的能力信息，从而基于相应的能力信息执行有效的TDLS通信和省电。如果该能力信息指示双方均可以支持多连接下的TDLS对等省电模式，那么在TDLS通信过程中，当一方将要进入省电模式时，可以进一步协商多个连接下的周期性苏醒信息，从而在保证省电的情况下也能够保证信息的及时接收。也就是说，图3或图4所示的通信方法还可以包括：在多个连接中的一个连接下获取第二消息帧，其中，第二消息帧可以包括与多个连接中的至少一个连接相对应的周期性苏醒信息。稍后将参照图5和图6以及表2来详细描述获取第二消息帧的实施例以及周期性苏醒信息的实施例。
图5是示出根据示例实施例的通信方法的流程图。图5所示的通信方法可以应用于TDLS对等省电模式(PSM)发起方(TDLS peer PSM initiator)。TDLS对等PSM发起方(TDLS peer PSM initiator)是指将要进入省电模式的STA。
根据本公开的实施例，TDLS建立请求方和TDLS建立响应方中的任意一者可以作为TDLS对等PSM发起方。
例如，在执行图3所示的通信方法的发起方将要进入省电模式(即，发起方为TDLS对等PSM发起方)的情况下，上述的图3所示的通信方法可以进一步包括图5所示的通信方法。例如，在执行图4所示的通信方法的接收方将要进入省电模式(即，接收方为TDLS对等PSM发起方)的情况下，上述的图4所示的通信方法可以进一步包括图5所示的通信方法。
参照图5，在步骤510中，在多个连接中的一个连接下确定第二消息帧(即，获取第二消息帧)；在步骤520中，发送第二消息帧。在本公开的实施例中，用于发送第二消息帧的连接可以与用于确定第二消息帧的连接相同或者不同，对此本公开不做具体限制。作为非限制性实施例，第二消息帧可以是TDLS对等PSM请求(TDLS peer PSM Request)帧。
根据本公开的实施例，第二消息帧可以包括与多个连接中的至少一个 连接相对应的周期性苏醒信息。多个连接可以指TDLS对等PSM发起方所属non-AP STA MLD支持的多个TDLS连接。至少一个连接可以指要进入省电模式的TDLS连接。根据图5所示的通信方法，可以在一个连接下协商本连接或者其他连接下的周期性苏醒信息。
仅作为描述性的实施例，可以以信息元素的形式在第二消息帧中携带与多个连接中的至少一个连接相对应的周期性苏醒信息。为了便于描述，下面以苏醒计划(wakeup schedule)信息元素为例来描述周期性苏醒信息。苏醒计划信息元素可以具有如下面的表2所示的格式。
表2.苏醒计划信息元素的格式
Figure PCTCN2021110614-appb-000002
参照表2，苏醒计划信息元素可以包括：标识苏醒计划信息元素的元素标识(Element ID)、表示苏醒计划信息元素的长度信息的长度域(Length)、以及周期性苏醒信息。
此外，可以理解的是表2所示的每一个元素都是独立存在的，这些元素被示例性的列在同一张表格中，但是并不代表表格中的所有元素必须根据表格中所示的同时存在。因此本领域内技术人员可以理解，本公开表格中的每一个元素的取值都是一个独立的实施例。
周期性苏醒信息的含义可以为：在相应的STA处于省电模式时在特定时段期间定期苏醒以接收/发送数据。在本公开的实施例中，特定时段可以以苏醒窗口为单位来进行定义，在下文中，特定时段也可以被称为“苏醒时间”。
根据本公开的实施例，周期性苏醒信息可以包括：与要进入TDLS对等省电模式的每个连接相对应的连接标识(例如，表2中的Link ID1、Link ID2)、以及与苏醒时间有关的信息。
在本公开的实施例中，连接标识(例如，Link ID1、Link ID2)可以具有多个比特位，以标识工作频谱、带宽/信道、和/或BSSID的组合信息。在本公开的实施例中，与表2所示的实施例不同，可以以连接组(Link set)的形式来标识要进入TDLS对等省电模式的连接。例如，连接组可以包括与多个TDLS连接分别对应的比特位，当相应比特位被设置为特定值(例如但不限于“1”)时，可以指示相应连接将要进入TDLS对等省电模式。 此外，虽然在表2中示出了两个连接(即，Link ID1、Link ID2分别标识的连接)，但是本公开不限于此，可以在表2中包括更多或更少的连接标识。
在本公开的实施例中，与苏醒时间有关的信息包括：苏醒窗口起始信息、苏醒窗口结束信息、苏醒窗口数量信息。
根据本公开的实施例，苏醒窗口起始信息可以包括偏移标识(Offset)和间隔标识(Interval)。
例如，偏移标识(Offset)是基于定时同步功能(TSF，timing synchronization function)参数设置的。例如，偏移标识(Offset)可以为TSF 0与第一个苏醒窗口的开始时刻之间的时间，其单位可以为微妙(microsecond)。例如，间隔标识(Interval)可以被设置为两个连续的苏醒窗口的开始时刻之间的时间，其单位可以为microsecond。例如，苏醒窗口在TSF值处开始，并且TSF值满足基于TSF值、偏移标识和间隔标识确定的条件。例如，“TSF值满足基于TSF值、偏移标识和间隔标识确定的条件”可以指，例如，TSF值满足等式TFS mod Interval＝Offset，其中，mod表示取模运算。然而，这仅是示例性的，其他用于确定苏醒窗口开始的方法也包含在本公开的范围内。在本公开的实施例中，TSF参数是AP MLD在信标(beacon)帧中携带并进行广播的，并且对于与AP MLD建立了多连接通信的non-AP STA MLD是一致的。
根据本公开的实施例，苏醒窗口结束信息可以包括苏醒窗口时隙(Awake window slot)和最大苏醒窗口持续时间(Maximum awake window duration)。例如，苏醒窗口时隙(Awake window slot)可以被设置为以回退时隙(backoff slot)为单位的苏醒窗口的持续时间。例如，最大苏醒窗口持续时间(Maximum awake window duration)可以被设置为以microsecond为单位的苏醒窗口的持续时间。
在本公开的实施例中，可以通过苏醒窗口时隙和/或最大苏醒窗口持续时间，来定义苏醒窗口的结束。
例如，当苏醒窗口时隙计数器达到0或者当最大苏醒窗口持续时间到达时(无论哪一个先来到)，苏醒窗口结束。苏醒窗口时隙计数器可以进行向下计数。在苏醒窗口开始处的苏醒窗口时隙计数器的起始值将等于表2中的苏醒窗口时隙(Awake window slot)的值。苏醒窗口时隙计数器在 苏醒窗口的开始处进行计数，并且当其达到0时停止计数。
例如，当表2中的苏醒窗口时隙或最大苏醒窗口持续时间中的一者被设置为0时，可以通过另一者来定义苏醒窗口的结束。
根据本公开的实施例，苏醒窗口数量信息(例如，表2中的空闲数(Idle count))被设置为连续苏醒窗口的数量，其中，在苏醒计划被删除之前，在该数量的连续苏醒窗口期间，单独的寻址帧(addressed frame)不会被接收到。也就是说，苏醒窗口数量信息可以表示设备在多少个连续苏醒窗口期间保持苏醒状态，其中，每个苏醒窗口的时段可以通过上面描述的苏醒窗口起始信息和苏醒窗口结束信息来定义。在由空闲数(Idle count)定义的多个连续苏醒窗口期间，在苏醒窗口内，至少向对端non-AP STA MLD发送保持活动(keep alive)帧，标识建立PS模式的一个或多个连接处于活动状态。在除了由空闲数(Idle count)定义的多个连续苏醒窗口之外的其他时间，可以保持省电模式(例如，处于休眠状态(sleep sate))。
在本公开的实施例中，与苏醒时间有关的信息可以在要进入省电模式的至少一个连接下被设置为相同或者不同。表2所示的苏醒计划信息元素的格式可以据此来不同地改变。
例如，当存在一个连接要进入省电模式时，在表2中，可以包括单个偏移标识、单个间隔标识、单个苏醒窗口时隙、单个最大苏醒窗口持续时间、单个空闲数、以及单个连接标识。
例如，当存在多个连接要进入省电模式时，在表2中，可以包括分别与该多个连接相对应的与苏醒时间有关的信息。也就是说，可以包括与多个连接中的每个连接相应对应的偏移标识、间隔标识、苏醒窗口时隙、最大苏醒窗口持续时间、空闲数、连接标识。
例如，当存在多个连接要进入省电模式时，在表2中，与苏醒时间有关的信息中的一部分信息参数均可以为多个，与苏醒时间有关的信息中的另一部分信息参数均可以为单个。例如，偏移标识、间隔标识、苏醒窗口时隙和最大苏醒窗口持续时间均可以为单个，而空闲数和连接标识均可以为多个(其数量等于要进入省电模式的连接的数量)。例如，偏移标识、间隔标识、苏醒窗口时隙、最大苏醒窗口持续时间和空闲数均可以为单个，而仅连接标识均可以为多个(其数量等于要进入省电模式的连接的数量)。在这样的实施例中，单个的信息参数可以适用于多个连接(即，单个的信 息参数在各个连接下相同)，而多个的信息参数可以分别应用于多个连接中的相应的连接。
当空闲数为单个而连接标识为多个时，可以表示苏醒窗口数量信息(表2中的空闲数(Idle count))可以应用于多个连接(要进入省电模式的多个连接)。在此情况下，在要进入TDLS对等省电模式的每个连接下的苏醒窗口数量小于或等于苏醒窗口数量信息指示的值。换言之，当存在多个连接要进入省电模式时，表2中的单个Idle count可以指最大值，即，每个连接下的连续苏醒窗口的数量(即，表2中的Idle count)可以不同或相同，但是每个连接下的连续苏醒窗口的数量小于或等于表2中的Idle count的设置值。然而本公开不限于此，例如，在另一实施例中，当空闲数为单个而连接标识为多个时，要进入省电模式的多个连接下的连续苏醒窗口的数量可以被设置为一致，即，均等于单个空闲数(Idle count)的设置值。
图6是示出根据示例实施例的通信方法的流程图。图5所示的通信方法可以应用于TDLS对等PSM响应方(TDLS peer PSM responder)。TDLS对等PSM响应方(TDLS peer PSM responder)是指与将要进入省电模式的STA进行TDLS通信的STA。
根据本公开的实施例，TDLS建立请求方和TDLS建立响应方中的任意一者可以作为TDLS对等PSM响应方。
例如，在执行图3所示的通信方法的发起方是与将要进入省电模式的STA进行TDLS通信的STA(即，发起方为TDLS对等PSM响应方)的情况下，上述的图3所示的通信方法可以进一步包括图6所示的通信方法。例如，在执行图4所示的通信方法的接收方是与将要进入省电模式的STA进行TDLS通信的STA(即，接收方为TDLS对等PSM响应方)的情况下，上述的图4所示的通信方法可以进一步包括图6所示的通信方法。
参照图6，在步骤610中，可以在多个连接中的一个连接下接收第二消息帧(即，获取第二消息帧)。多个连接可以是TDLS对等PSM响应方所属non-AP STA MLD支持的多个TDLS连接。作为非限制性实施例，第二消息帧可以是TDLS对等PSM请求(TDLS peer PSM Request)帧。第二消息帧可以包括与多个连接中的至少一个连接相对应的周期性苏醒信息。所述至少一个连接是指将要进入省电模式的连接。
也就是说，第二消息帧可以携带TDLS对等PSM发起方所建议的周期性苏醒信息，并且TDLS对等PSM响应方可以从TDLS对等PSM接收方接收第二消息帧，并且获取关于将要进入省电模式的一个或多个连接的周期性苏醒信息。例如，周期性苏醒信息可以具有如表2所示的各个信息参数，为了简明，在此省略重复的描述。
在步骤620中，可以发送针对第二消息帧的响应信息。例如，当TDLS对等PSM响应方接受在第二消息帧中建议的周期性苏醒信息时，可以通过TDLS对应PSM响应帧携带关于接受的响应信息(例如，状态码指示成功“SUCCESS”)来进行响应；否则将携带关于拒绝的响应信息。
通过图5和图6的通信方法，可以在一个连接下协商本连接和/或其他连接(多个连接)下的周期性苏醒信息，从而节省信令。
然而，本公开的实施例不限于此，也可以在要处于省电模式的每个连接下建立各自的省电模式，即，在每个连接下协商苏醒窗口有关信息(即，在每个连接下传输TDLS对应PSM请求帧和TDLS对应PSM响应帧)。在此情况下，可以使得苏醒计划信息元素能够兼容旧式站点(例如，仅支持单连接通信的站点)，但是会需要更多个信令。
图7是示出根据本公开的实施例的通信装置700的框图。
参照图7，通信装置700可以包括处理模块710和收发模块720。
在本公开的一个实施例中，图7所示的通信装置可以应用于发送方，并且可以执行图3所示的通信方法。例如，处理模块710可以被配置为在多个连接中的一个连接下确定第一消息帧，收发模块720可以被配置为发送第一消息帧。第一消息帧可以包括指示在多个连接下对于TDLS对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信。第一消息帧及其包括的支持能力信息可以类似于参照图3和表1描述的实施例，为了简明，在此省略重复的描述。
在本公开的另一实施例中，图7所示的通信装置应用于接收方，并且可以执行参照图4描述的通信方法。例如，收发模块720可以被配置为在多个连接中的一个连接下接收第一消息帧，处理模块710可以被配置为基于第一消息帧控制通信操作的执行。第一消息帧可以包括指示在多个连接下对于TDLS对等省电模式的支持能力信息，其中，所述多个连接能够支 持TDLS通信。第一消息帧及其包括的支持能力信息可以类似于参照图4和表1描述的实施例，为了简明，在此省略重复的描述。
在本公开的另一实施例中，图7所示的通信装置可以应用于TDLS对等PSM发起方，并且可以执行参照图5描述的通信方法。例如，处理模块710可以被配置为在多个连接中的一个连接下确定第二消息帧；收发模块720可以被配置为发送第二消息帧。第二消息帧可以包括与多个连接中的至少一个连接相对应的周期性苏醒信息。第二消息帧及其包括的周期性苏醒信息可以类似于参照图5和表2描述的实施例，为了简明，在此省略重复的描述。
在本公开的另一实施例中，图7所示的通信装置可以应用于TDLS对等PSM响应方，并且可以执行参照图6描述的通信方法。例如，收发模块720可以被配置为在多个连接中的一个连接下接收第二消息帧，其中，第二消息帧可以包括与多个连接中的至少一个连接相对应的周期性苏醒信息；处理模块710可以被配置为确定是否接受第二消息帧中建议的苏醒周期信息，并且控制收发模块720发送针对第二消息帧的响应信息。第二消息帧及其包括的周期性苏醒信息可以类似于参照图6和表2描述的实施例，为了简明，在此省略重复的描述。
此外，图7所示的通信装置700仅是示例性的，本公开的实施例不限于此，例如，通信装置700还可以包括其他模块，例如，存储器模块等。此外，通信装置700中的各个模块可以组合成更复杂的模块，或者可以划分为更多单独的模块。
根据本公开的实施例的通信方法和通信装置使得设备在建立TDLS连接的情况下能够处于PS模式，从而能够省电以及提高频谱利用率。
基于与本公开的实施例所提供的方法相同的原理，本公开的实施例还提供了一种电子装置，该电子装置包括处理器和存储器；其中，存储器中存储有机器可读指令(也可以称为“计算机程序”)；处理器，用于执行机器可读指令以实现参照图3至图6描述的方法。
本公开的实施例还提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现参照图3至 图6描述的方法。
在示例实施例中，处理器可以是用于实现或执行结合本公开内容所描述的各种示例性的逻辑方框、模块和电路，例如，CPU(Central Processing Unit，中央处理器)、通用处理器、DSP(Digital Signal Processor，数据信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field Programmable Gate Array，现场可编程门阵列)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合、DSP和微处理器的组合等。
在示例实施例中，存储器可以是，例如，ROM(Read Only Memory，只读存储器)、RAM(Random Access Memory，随机存取存储器)、EEPROM(Electrically Erasable Programmable Read Only Memory，电可擦可编程只读存储器)、CD-ROM(Compact Disc Read Only Memory，只读光盘)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的程序代码并能够由计算机存取的任何其他介质，但不限于此。
应该理解的是，虽然附图的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，其可以以其他的顺序执行。此外，附图的流程图中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，其执行顺序也不必然是依次进行，而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
虽然已经参照本公开的某些实施例示出和描述了本公开，但是本领域技术人员将理解，在不脱离本公开的范围的情况下，可以在形式和细节上进行各种改变。因此，本公开的范围不应被限定为受限于实施例，而是应由所附权利要求及其等同物限定。

Claims (13)

  1. 一种通信方法，包括：
    在多个连接中的一个连接下确定以及发送第一消息帧；或
    在多个连接中的一个连接下接收所述第一消息帧，
    其中，所述第一消息帧包括指示在所述多个连接下对于通道直接链路建立TDLS对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信。
  2. 根据权利要求1所述的通信方法，其中，当TDLS对等省电模式激活源语被设置为第一特定值时，并且在所述支持能力信息被设置为第二特定值的情况下，标识在所述多个连接下支持TDLS对等省电模式。
  3. 根据权利要求1所述的通信方法，还包括：
    在所述多个连接中的一个连接下获取第二消息帧，
    其中，所述第二消息帧包括与所述多个连接中的至少一个连接相对应的周期性苏醒信息。
  4. 根据权利要求3所述的通信方法，其中，所述周期性苏醒信息包括：与要进入TDLS对等省电模式的每个连接相对应的连接标识、以及与苏醒时间有关的信息。
  5. 根据权利要求4所述的通信方法，其中，所述与苏醒时间有关的信息包括：苏醒窗口起始信息、苏醒窗口结束信息、苏醒窗口数量信息。
  6. 根据权利要求5所述的通信方法，其中，所述苏醒窗口起始信息包括偏移标识和间隔标识，
    其中，所述偏移标识是基于定时同步功能TSF参数设置的，
    其中，所述苏醒窗口在TSF值处开始，并且所述TSF值满足基于所 述TSF值、所述偏移标识和所述间隔标识确定的条件。
  7. 根据权利要求4至6中的任一项所述的通信方法，其中，所述与苏醒时间有关的信息在所述至少一个连接下被设置为相同或者不同。
  8. 根据权利要求7所述的通信方法，其中，所述苏醒窗口数量信息被设置为连续苏醒窗口的数量，其中，在苏醒计划被删除之前，在该数量的连续苏醒窗口期间，单独的寻址帧不会被接收到。
  9. 根据权利要求8所述的通信方法，其中，在所述苏醒窗口数量信息应用于多个连接的情况下，在要进入TDLS对等省电模式的每个连接下的苏醒窗口数量小于或等于所述苏醒窗口数量信息指示的值。
  10. 一种多连接下的通信装置，包括：
    处理模块，被配置为：在多个连接中的一个连接下确定第一消息帧，其中，所述第一消息帧包括指示在所述多个连接下对于通道直接链路建立TDLS对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信；
    收发模块，被配置为：发送所述第一消息帧。
  11. 一种多连接下的通信装置，包括：
    收发模块，被配置为：在多个连接中的一个连接下接收第一消息帧，其中，所述第一消息帧包括指示在所述多个连接下对于通道直接链路建立TDLS对等省电模式的支持能力信息，其中，所述多个连接能够支持TDLS通信；
    处理模块，被配置为：基于所述第一消息帧控制通信操作的执行。
  12. 一种电子装置，包括存储器、处理器及存储在所述存储器上并在所述处理器上可运行的计算机程序，其中，所述处理器执行所述计算机程 序时实现权利要求1至9中的任一项所述的方法。
  13. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现权利要求1至9中的任一项所述的方法。
PCT/CN2021/110614 2021-08-04 2021-08-04 通信方法和通信装置 WO2023010345A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2021/110614 WO2023010345A1 (zh) 2021-08-04 2021-08-04 通信方法和通信装置
CN202180002264.9A CN115943728A (zh) 2021-08-04 2021-08-04 通信方法和通信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/110614 WO2023010345A1 (zh) 2021-08-04 2021-08-04 通信方法和通信装置

Publications (1)

Publication Number Publication Date
WO2023010345A1 true WO2023010345A1 (zh) 2023-02-09

Family

ID=85154885

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/110614 WO2023010345A1 (zh) 2021-08-04 2021-08-04 通信方法和通信装置

Country Status (2)

Country Link
CN (1) CN115943728A (zh)
WO (1) WO2023010345A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080219228A1 (en) * 2007-03-10 2008-09-11 Lg Electronics Inc. Peer power save mode in tunneled direct link setup (tdls) wireless network
CN101557330A (zh) * 2008-04-08 2009-10-14 深圳华为通信技术有限公司 一种支持省电模式的方法、系统及终端
US20100271995A1 (en) * 2007-11-12 2010-10-28 Lg Electronics Inc. Procedure for a power save mode in a direct link setup wireless network
US20110038291A1 (en) * 2009-08-11 2011-02-17 Lg Electronics Inc. Apparatus and method for power save mode in wireless local area network
US20120163261A1 (en) * 2010-12-23 2012-06-28 Texas Instruments Incorporated Timing measurements between wireless stations with reduced power consumption
WO2021112556A1 (ko) * 2019-12-02 2021-06-10 엘지전자 주식회사 무선 통신 시스템에서 멀티 링크 통신을 수행하기 위한 기법
US20210211871A1 (en) * 2020-01-04 2021-07-08 Nxp Usa, Inc. Apparatus and method for multi-link management in multi-link communication systems

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080219228A1 (en) * 2007-03-10 2008-09-11 Lg Electronics Inc. Peer power save mode in tunneled direct link setup (tdls) wireless network
US20100271995A1 (en) * 2007-11-12 2010-10-28 Lg Electronics Inc. Procedure for a power save mode in a direct link setup wireless network
CN101557330A (zh) * 2008-04-08 2009-10-14 深圳华为通信技术有限公司 一种支持省电模式的方法、系统及终端
US20110038291A1 (en) * 2009-08-11 2011-02-17 Lg Electronics Inc. Apparatus and method for power save mode in wireless local area network
US20120163261A1 (en) * 2010-12-23 2012-06-28 Texas Instruments Incorporated Timing measurements between wireless stations with reduced power consumption
WO2021112556A1 (ko) * 2019-12-02 2021-06-10 엘지전자 주식회사 무선 통신 시스템에서 멀티 링크 통신을 수행하기 위한 기법
US20210211871A1 (en) * 2020-01-04 2021-07-08 Nxp Usa, Inc. Apparatus and method for multi-link management in multi-link communication systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABHISHEK PATIL (QUALCOMM): "CC34 resolution for CIDs related to TDLS handling", IEEE DRAFT; 11-21-0240-08-00BE-CC34-RESOLUTION-FOR-CIDS-RELATED-TO-TDLS-HANDLING, IEEE-SA MENTOR, PISCATAWAY, NJ USA, vol. 802.11 EHT; 802.11be, no. 8, 8 July 2021 (2021-07-08), Piscataway, NJ USA , pages 1 - 7, XP068182329 *

Also Published As

Publication number Publication date
CN115943728A (zh) 2023-04-07

Similar Documents

Publication Publication Date Title
WO2021089022A1 (zh) 一种多链路设备间的通信方法和装置
WO2021180177A1 (zh) 一种应用于多链路通信中的功率节省方法和装置
US10193985B2 (en) Method and device for performing service discovery in wireless communication system
WO2023010345A1 (zh) 通信方法和通信装置
WO2022205324A1 (zh) 多连接下的通信方法和通信装置
WO2022151485A1 (zh) 多连接下的通信方法和通信设备
WO2022151486A1 (zh) 通信方法和通信设备
WO2022217587A1 (zh) 多连接下的通信方法和通信装置
WO2022226841A1 (zh) 多连接下的通信方法和通信装置
WO2022267033A1 (zh) 通信方法和通信装置
WO2023004644A1 (zh) 多连接下的通信方法和通信装置
WO2022198596A1 (zh) 多连接下的通信方法和通信装置
WO2023015415A1 (zh) 通信方法和通信装置
WO2022236711A1 (zh) 多连接下的通信方法和通信装置
WO2022256985A1 (zh) 通信方法和通信装置
WO2022241641A1 (zh) 通信方法和通信装置
WO2023023948A1 (zh) 通信方法和通信装置
WO2023004643A1 (zh) 多连接下的通信方法和通信装置
WO2023028773A1 (zh) 通信方法和通信装置
WO2022252027A1 (zh) 多连接下的通信方法和通信装置
WO2023019405A1 (zh) 多连接下的通信方法和通信装置
WO2023056608A1 (zh) 通信方法和通信装置
WO2022165680A1 (zh) 多连接下的通信方法和通信装置
WO2022217586A1 (zh) 多连接下的通信方法和通信装置
WO2023056637A1 (zh) 多连接下的通信方法和通信装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21952246

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE