WO2023024122A1

WO2023024122A1 - Multiple links communication method and apparatus, device, and storage medium

Info

Publication number: WO2023024122A1
Application number: PCT/CN2021/115168
Authority: WO
Inventors: 徐彦超; 王泷
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2023-03-02
Also published as: CN117441382A

Abstract

The present application relates to the technical field of communications. Disclosed are a multiple links communication method and apparatus, a device, and a storage medium. The method is applied to a first multiple links device, and the method comprises: when a first condition is satisfied, setting a first field of a first data packet transmitted over at least one target link as a first value, the first value being used for indicating that a service period ends; and sending the first data packet carrying the first field over the at least one target link, the first condition being obtained on the basis of information related to all or at least two links. According to the technical solution provided by the embodiments of the present application, a setting mode in which a data packet sent by a first multiple links device carries a first field is added, the mode that each link independently maintains a power consumption management state of the link is eliminated, and redundant power consumption caused by unreasonable setting of the first field is avoided. The setting mechanism of the first field is enriched.

Description

Multi-link communication method, device, equipment and storage medium

technical field

The present application relates to the field of wireless communication, and in particular to a multi-link communication method, device, equipment and storage medium.

Background technique

For Access Point Multiple Links Device (AP MLD) and Station Multiple Links Device (Station Multiple Links Device, STA MLD), multiple links that can be established between AP MLD and STA MLD ( Multiple Links) realize data transmission between devices.

Under the relevant mechanism, in the case of multiple links between the AP MLD and the STA MLD, in the Unscheduled Automatic Power Save Delivery (UAPSD) mechanism, each link independently maintains the link The power consumption management status of the link, that is, the data transmission status of the link is determined according to the relevant information of the link.

However, in the case that multiple links implement data transmission between devices, how to reduce power consumption caused by multiple links between devices is an urgent problem to be solved.

Contents of the invention

Embodiments of the present application provide a multi-link communication method, device, device, and storage medium. Described technical scheme is as follows:

According to an aspect of the embodiments of the present application, a multi-link communication method is provided, the method is applied to a first multi-link device, and the communication between the first multi-link device and the second multi-link device With n links, the method includes:

When the first condition is met, the first multi-link device sets the first field of the first data packet transmitted on at least one target link to a first value, and the first value is used to indicate end of service period;

sending, by the first multi-link device, the first data packet carrying the first field on the at least one target link;

Wherein, the first condition is obtained based on information related to the n links.

According to another aspect of the embodiment of the present application, a first multi-link device is provided, and there are n links between the first multi-link device and the second multi-link device, and the device includes:

The first setting module is configured to set the first field of the first data packet transmitted on at least one target link to a first value when the first condition is met, and the first value is used to indicate the service end of period;

a sending module, configured to send the first data packet carrying the first field on the at least one target link;

According to another aspect of the embodiments of the present application, a wireless fidelity (Wireless Fidelity, WiFi) device is provided, the multi-link device includes a processor and a memory, and there is at least one program in the memory; the processor , for executing the at least one section of program in the memory to implement the above-mentioned multi-link communication method.

According to another aspect of the embodiments of the present application, there is provided a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the above-mentioned multi-link communication method .

According to another aspect of the embodiments of the present application, a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, is used to implement the above multi-link communication method.

According to another aspect of the embodiments of the present application, a computer program product or computer program is provided, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads from the The computer-readable storage medium reads and executes the computer instructions, so as to implement the above-mentioned multi-link communication method.

The technical solutions provided in the embodiments of the present application can bring the following beneficial effects:

In a scenario where multi-link connections are used to implement data transmission between devices, a solution is provided for setting a first field carried in a data packet sent by a first multi-link device according to information related to multiple links. This solution can comprehensively consider the link or device conditions reflected by the information related to multiple links, set the first field, and reasonably set the first field to a value indicating the end of the service period. This saves power consumption caused by link connections in unnecessary or unreasonable situations. Get rid of the mode that each link independently maintains the power management state of this link. In the case of only considering information related to a single link, redundant power consumption caused by unreasonable setting of the first field is avoided. Enriched the setting mechanism of the first field.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a schematic diagram of a wireless local area network system provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a wireless local area network system provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of establishing a single link between a station and an access point provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of establishing a multi-link between a station multi-link device and an access point multi-link device provided by an embodiment of the present application;

FIG. 5 is a flowchart of a multi-link communication method provided by an embodiment of the present application;

FIG. 6 is a flowchart of a multi-link communication method provided by an embodiment of the present application;

FIG. 7 is a flowchart of a multi-link communication method provided by an embodiment of the present application;

FIG. 8 is a flowchart of a multi-link communication method provided by an embodiment of the present application;

FIG. 9 is a flowchart of a multi-link communication method provided by an embodiment of the present application;

FIG. 10 is a flowchart of a multi-link communication method provided by an embodiment of the present application;

FIG. 11 is a block diagram of a multi-link communication device provided by an embodiment of the present application;

Fig. 12 is a schematic structural diagram of a multi-link device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. The evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

FIG. 1 shows a schematic diagram of a wireless local area network (Wireless Local Area Network, WLAN) system provided by an exemplary embodiment of the present application. The wireless local area network system may include: a station (Station, STA) 110, an access point (Access Point , AP) 120.

Wherein, only a single link (single link) exists between the STA 110 and the AP 120. In the embodiment of the present application, both the STA 110 and the AP 120 support communication according to the Institute of Electrical and Electronic Engineers (Institute of Electrical and Electronic Engineers, IEEE) 802.11 standard.

The station 110 may be a wireless communication chip, a wireless sensor or a wireless communication terminal. For example: mobile phones supporting wireless fidelity (Wireless Fidelity, WiFi) communication functions, tablet computers supporting WiFi communication functions, set-top boxes supporting WiFi communication functions, smart TVs supporting WiFi communication functions, smart wearable devices supporting WiFi communication functions , A vehicle communication device supporting the WiFi communication function and a computer supporting the WiFi communication function. Optionally, the station can support the 802.11ax standard. Further optionally, the station supports multiple WLAN standards such as 802.11be, 802.11bf, 802.11bh, 802.11ac, 802.11n, 802.l1g, 802.11b, and 802.11a. The supported WLAN standards include but are not limited to the WLAN standards listed above.

The access point 120 is also called a wireless access point or a hotspot, and is a device deployed in a wireless local area network to directly or indirectly provide a wireless communication function for the STA 110, and transmit the data of the access point to the network side, or transmit data from the network side to the access station. AP 120 is mainly deployed in homes, buildings, and parks, with a typical coverage radius of tens of meters to hundreds of meters. Of course, it can also be deployed outdoors. The AP is responsible for the connection between the wired network and the wireless network, connects various wireless network sites together, and then connects the wireless network to the Ethernet. Specifically, the AP may be a terminal device or a network device with a WiFi chip. Optionally, the AP can be a device supporting the 802.11ax standard. Further optionally, the AP supports various WLANs such as 802.11be, 802.11bf, 802.11bh, 802.11ac, 802.11n, 802.l1g, 802.11b, and 802.11a Standard. The WLAN standards supported by the AP include but are not limited to the WLAN standards listed above.

It should be noted that: STA 110 includes STAs that only support single-link connections, and also includes station multiple link devices (Station Multiple Links Device, STAMLD) that support single-link connections; correspondingly, AP 120 includes STAs that only support single-link connections. The connected AP also includes the station access point multiple link device (Access Point Multiple Links Device, APMLD) that supports single-link connection.

FIG. 2 shows a schematic diagram of a wireless local area network system provided by an exemplary embodiment of the present application. The wireless local area network system may include: STAMLD210 and APMLD220.

Among them, with the expansion of network application scenarios, the demand for network speed and quality is gradually increasing. STA MLD 210 and AP MLD 220, which can support multiple links (Multiple Links) connection, are developing rapidly. There is a gap between STA MLD 210 and AP MLD 220. multiple links. In the embodiment of the present application, both the STA MLD 210 and the AP MLD 220 support communication according to the Institute of Electrical and Electronic Engineers (Institute of Electrical and Electronic Engineers, IEEE) 802.11 standard.

The STA MLD 210 contains one or several integrated circuit (Integrated Circuit, IC) chips, and the IC chip contains several link devices, and each link device can exist on different IC chips or on the same IC chip. Data transmission through multiple links is realized through computer programs, and the frequency bands used by each link device for data transmission are independent of each other. Exemplarily, STA MLD 210 includes 3 link devices, and the 3 link devices respectively use three frequency bands of 2.4GHz, 5GHz and 6GHz to realize data transmission.

Correspondingly, AP MLD 220 contains one or several IC chips, and the IC chip contains several link devices, and each link device can exist in different IC chips, or can exist on the same IC chip, and can be realized by computer programs. Data transmission is performed through multiple links, and the frequency bands used by each link device for data transmission are independent of each other. Exemplarily, the AP MLD 220 includes 3 link devices, and the 3 link devices respectively use three frequency bands of 2.4GHz, 5GHz and 6GHz to realize data transmission.

Optionally, the STA MLD 210 and the AP MLD 220 may be devices supporting the 802.11ax standard. Further optionally, the STA MLD 210 and the AP MLD 220 support 802.11be, 802.11bf, 802.11bh, 802.11ac, 802.11n, 802 .l1g, 802.11b and 802.11a and other WLAN standards, the WLAN standards supported by STA MLD 210 and AP MLD 220 include but are not limited to the WLAN standards listed above.

For the single link established between the AP and the STA, in the Unscheduled Automatic Power Save Delivery (UAPSD) mechanism, the STA in the Media Access Control Header (Medium Access Control Header, MAC header) carries the power management function (Power Management, PM) field indicating the power saving state (Power Save State). The PM field is used to indicate to the AP the state of the STA after the unicast frame (Unicast Frame). The unicast frame is a frame for transmitting a unicast packet carrying a PM field.

Referring to FIG. 3 , FIG. 3 shows a method for maintaining a power consumption management state of a link by a single link established between an AP and a STA. Exemplary, link (Link) 0 is established between AP and STA, under the situation of PM=0, STA is in wake-up mode (Active Mode) 311 after unicast frame; Under the situation of PM=1, STA is in Be in sleep mode (Doze State) 312 after the unicast frame. It can be understood that the PM field can also be set in other ways, for example: in the case of PM=1, the STA is in the wake-up mode 311 after the unicast frame; in the case of PM=0, the STA is in sleep after the unicast frame Mode 312.

It should be noted that when the STA is in sleep mode 312, the AP cannot actively send unicast packets to the STA. Exemplarily, when the STA includes but is not limited to at least one of the following situations, the AP can send a unicast packet to the STA:

The STA sends the field of PM=0 to the AP;

STA sends trigger frame (Trigger Frame) to AP;

The STA sends a Power Save Poll packet to the AP.

In the UAPSD mechanism, after the STA sends a successful trigger frame 321 to the AP, a service period (Service Period, SP) 313 is obtained between the STA in sleep mode 312 and the AP.

It should be noted that in the UAPSD mechanism, when the STA and the AP establish a negotiation to enable UAPSD, they determine the maximum number of data packets transmitted on the link during the service period. For example, the AP can send STAs in one SP The number of packets includes, but is not limited to, at least one of the following numbers: 2, 4, 6 or unlimited.

In the UAPSD mechanism, the STA remains awake in an SP (Awake State). When the SP ends, the AP needs to carry the End of Service Period (EOSP) field in the last packet sent to the STA in the SP. Indicates the end of SP. Exemplarily, when EOSP=1, it means that the SP ends; when EOSP=0, it means that the SP continues. At the end of SP, STA can choose to enter sleep mode to save power consumption. It is understandable that the EOSP field may also be set in other ways, for example: when EOSP=0, it means that the SP ends; when EOSP=1, it means that the SP continues. At the end of SP, STA can choose to enter sleep mode to save power consumption.

Exemplarily, in link 0 established between the AP and the STA, the STA sends a trigger frame 321 to the AP, and after the AP successfully receives the trigger frame and sends an acknowledgment character (Acknowledge character, ACK) 322 to the STA through a feedback mechanism, the STA After obtaining a service period with the AP, the AP can actively send any data packet to the STA, and the STA sends an ACK to the AP through a feedback mechanism after successfully receiving any data packet.

Exemplarily, when the maximum number of data packets transmitted on the link during the service period is 2, the AP carries the EOSP field indicating that the SP continues in the first Quality of Service (Quality of Service, QoS) data packet 323 , EOSP=0. After successfully receiving the first QoS data packet 323, the STA sends an ACK 324 to the AP. The AP carries the EOSP field indicating the end of the SP in the second QoS data packet 325, EOSP=1. After the STA successfully receives the second QoS data packet 325, it sends an ACK 326 to the AP, and the STA can choose to enter a sleep mode to save power consumption.

Exemplarily, when the length of the SP determines that the number of packets that can be sent is not limited, the AP needs to carry the EOSP field indicating the end of the SP in the last QoS data packet, EOSP=1. After the STA successfully receives the last QoS data packet, it sends an ACK to the AP, and the STA can choose to enter the sleep mode to save power consumption.

For multiple links established between the AP MLD and the STA MLD, in the current power management function, each link independently maintains the power management state (Power Management State) of the link. In the UAPSD mechanism, the EOSP field carried in the packet sent by the AP on each link is determined according to the maximum number of data packets transmitted within the service period.

Exemplary reference to Figure 4, in the case of establishing two links between AP MLD and STA MLD, Figure 4 respectively shows and compares the power consumption management of each link independently maintaining the link under the relevant mechanism The method of state and the method of link maintenance power management state in one embodiment of the present application.

Referring to link 1 and link 2a in FIG. 4 as an example, link 1 and link 2a show a method for each link independently maintaining the power consumption management state of the link in the related mechanism.

Exemplarily, in the embodiment shown in link 1 and link 2a in Fig. 4, two links are established between AP MLD and STA MLD, and AP MLD has three QoS packets to be sent to STA in total, The maximum number of data packets transmitted during the service period on both link 1 and link 2a is greater than or equal to 2.

After AP MLD successfully receives corresponding trigger frames 411 and 421 sent by STA MLD on link 1 and link 2a respectively, and sends corresponding

ACK

412 and 422 to STA MLD. The AP MLD sends a first QoS data packet 413 to the STA MLD on link 1, and sends a second QoS data packet 423 to the STA MLD on link 2a. Since the third QoS data packet has not been sent at this time, and the number of data packets transmitted on link 1 and link 2a has not reached the maximum number of data packets transmitted during the service period, the first QoS data packet 413 and The second QoS data packet 423 carries the EOSP field indicating that the SP continues, EOSP=0.

After the AP MLD receives the

corresponding ACK

414 and 424 sent by the STA MLD on both link 1 and link 2a, optionally, the AP MLD sends a third QoS data packet 415 to the STA MLD on link 1, because At this time, there is no QoS data packet not yet sent, or the number of data packets transmitted on link 1 reaches the maximum number of data packets transmitted during the service period, and the third QoS data packet 415 carries the EOSP field indicating the end of SP, EOSP =1, STA MLD enters sleep mode 417 after successfully receiving the third QoS packet 415 and sending ACK 416. On link 2a, there is no QoS packet transmission, and there is no QoS packet not yet sent after the third QoS packet 415 is sent, in order to let STA MLD enter sleep mode on link 2a, it is necessary to Send a QoS empty packet 425, carrying the EOSP field indicating that the SP ends, EOSP=1, STA MLD enters sleep mode 427 after successfully receiving the QoS empty packet 425 and sending ACK 426.

In the above example, link 2a needs to send another QoS null data packet carrying the EOSP field only to send the EOSP field indicating the end of the SP without sending a data packet, which wastes air interface resources, and STA MLD needs to be in the The SP stays awake all the time until it receives a QoS empty data packet carrying the EOSP field indicating the end of the SP, which additionally increases the unnecessary power consumption of the STA MLD and AP MLD.

Referring exemplarily to link 1 and link 2b in FIG. 4 , link 1 and link 2b illustrate a method for link maintenance of a power consumption management state in an embodiment of the present application.

Exemplarily, in the embodiment shown in link 1 and link 2b in Fig. 4, two links are established between AP MLD and STA MLD, and AP MLD has three QoS packets to be sent to STA in total, The maximum number of data packets transmitted during the service period on both link 1 and link 2b is greater than or equal to 2.

After the AP MLD successfully receives the trigger frames 411 and 431 corresponding to the STA MLD on link 1 and link 2b respectively, and sends the

corresponding ACK

412 and 432 to the STA MLD. The AP MLD sends a first QoS data packet 413 to the STA MLD on link 1, and sends a second QoS data packet 433 to the STA MLD on link 2a. Optionally, when the first condition is satisfied, the second QoS data packet 433 carries an EOSP field indicating the end of the SP, and EOSP=1. STA MLD enters sleep mode 435 after successfully receiving the second QoS packet 433 and sending ACK 434. The first QoS data packet 413 carries an EOSP field indicating that the SP continues, and EOSP=0. After the AP MLD receives the corresponding ACK 414 sent by the STA MLD on link 1, it sends the third QoS data packet 415 to the STA MLD, and carries the EOSP field indicating the end of the SP, EOSP=1, and the STA MLD successfully receives the first After three QoS packets 415 and sending ACK 416, enter sleep mode 417.

The first condition is obtained based on information related to all links established between the AP MLD and the STA MLD, and in this embodiment is obtained based on information related to link 1 and link 2a.

In the above example, according to the first condition, the first QoS packet carries the EOSP field indicating the continuation of the SP, and the second QoS packet carries the EOSP field indicating the end of the SP; air interface resources are saved, allowing some or all links to enter Sleep mode saves the power consumption of STA MLD and AP MLD while ensuring or taking into account the transmission efficiency.

In the following, the technical solution of the present application will be described through several embodiments.

Figure 5 provides a flowchart of a multi-link communication method provided by an embodiment of the present application, the method can be executed by the access point multi-link device in the implementation environment shown in Figure 2, and the method includes:

Step 502: When the first condition is met, the first multi-link device sets the first field of the first data packet transmitted on at least one target link to a first value;

The first condition is obtained based on information related to n links, and there are n link connections between the first multi-link device and the second multi-link device.

The first condition may be obtained based on information related to all links established between the first multi-link device and the second multi-link device, or may be based on The relevant information includes but is not limited to at least one of the following information:

The remaining number of data packets to be transmitted on all links;

· the number of all links between the first multi-link device and the second multi-link device;

• Link quality of the link between the first multilink device and the second multilink device.

Exemplarily, the first multi-link device is an access point multi-link device, the second multi-link device is a site multi-link device, and the first field is a service period end field. Optionally, the first field can also be is another field that has the same or similar function as the End of Service field.

The target link is part or all of the links connected between the first multi-link device and the second multi-link device, and the target link satisfies the first condition.

The first data packet is a data packet to be transmitted in the current service period on the target link. When setting the first field of the first data packet transmitted by the target link, there are and There is only 1 packet pending transmission. After the first data packet sets the first field, the first multi-link device sends the first data packet to the second multi-link device in the frame used to transmit the data packet on the target link, for example, the next frame It is usually a unicast frame, but it is not excluded that it is a frame of other types such as a broadcast frame and a multicast frame.

Optionally, in the case that the target link is a partial link between the first multi-link device and the second multi-link device, the second The server end field of the data packet is set to the second value. The second data packet is one of the data packets to be transmitted in the current service period on other links except the target link, that is, the second data packet is used by the first multi-link device on the target link A data packet to be sent to the second multi-link device in the frame of the transmission data packet.

The first field is used to indicate the end or continuation of the SP, and the first field is set to the first value to indicate the end of the service period. For example, EOSP=1; when the SP ends, the STA can choose to enter the sleep mode to Save power consumption. Optionally, the first field is set to the second value to indicate that the service period continues, for example, EOSP=0.

Step 503: The first multi-link device sends a first data packet carrying a first field on at least one target link.

After setting the first field to the first value, the first multi-link device sends the first data packet carrying the first field on the corresponding target link.

To sum up, the method provided in this embodiment provides a method for transmitting information sent by the first multi-link device based on information related to multiple links in the scenario where multi-link connections are used to implement data transmission between devices. The scheme in which the first field carried by the data packet is set. This solution can comprehensively consider the link or device conditions reflected by the information related to multiple links, set the first field, and reasonably set the first field to a value indicating the end of the service period. This saves power consumption caused by link connections in unnecessary or unreasonable situations. Get rid of the mode that each link independently maintains the power management state of this link. In the case of only considering information related to a single link, redundant power consumption caused by unreasonable setting of the first field is avoided. Enriched the setting mechanism of the first field.

The following takes the first multi-link device as an access point multi-link device, the second multi-link device as a site multi-link device, and the first field as an end-of-service period field as an example for specific description:

FIG. 6 provides a flow chart of a multi-link communication method provided by an embodiment of the present application. The method can be executed by an access point multi-link device in the implementation environment shown in FIG. 2 , and the method includes:

Step 504: When the first number is less than or equal to the preset threshold; or, the first number is less than or equal to the number of all links between the first multi-link device and the second multi-link device, the first multi-link device The link device sets the first field of the first data packet transmitted on the at least one target link as a first value.

Exemplarily, the first multi-link device is an access point multi-link device, the second multi-link device is a station multi-link device, and the first field is a service period end field.

The first number is the remaining number of data packets to be transmitted on the n links, and there are n link connections between the AP MLD and the station multi-link device STA MLD. That is, the first quantity is the remaining quantity of data packets to be transmitted on all links established between the AP MLD and the STA MLD.

In this embodiment, there is no limitation on the setting method of the preset threshold, and the setting method of the preset threshold includes but not limited to at least one of the following methods: directly determined by AP MLD, directly determined by STA MLD, AP MLD Negotiated with STA MLD.

In this embodiment, the basis for determining the preset threshold is not limited. Exemplarily, the basis for determining the preset threshold includes but is not limited to at least one of the following basis:

The frequency band used by the link;

For example: considering the different anti-interference capabilities of the links using the 2.4GHz, 5GHz, and 6GHz frequency bands, set the preset threshold of the link using the 2.4GHz frequency band as the first threshold, and set the preset threshold of the link using the 5GHz frequency band to As the second threshold, the preset threshold of the link using the 6GHz frequency band is set as the third threshold.

The type of data packets transmitted by the link during the service period;

For example: in the case of the first type of data packet, set the preset threshold of the link to the first threshold; in the case of the second type of data packet, set the preset threshold of the link to the second Threshold; the basis for classifying data packet types includes, but is not limited to: timeliness requirements for data packet transmission, accuracy requirements for data packet transmission, and the number of bytes in the data packet.

The maximum number of data packets transmitted by the link during the service period;

For example: when the maximum number of data packets transmitted during the service period is not limited, the preset threshold of the link is set to the first threshold; the maximum number of data packets transmitted during the service period is limited by a specific value In this case, set the preset threshold of the link as the second threshold.

The number of data packets that need to be transmitted by the link during the service period;

For example: when the number of data packets to be transmitted during the service period exceeds a fixed multiple of the number of links, set the preset threshold of the link to the first threshold; the number of data packets to be transmitted during the service period does not exceed the number of links In the case of a fixed multiple, the preset threshold of the link is set as the second threshold.

The state of the access point multi-link device;

The state of the access point multilink device includes, but is not limited to, the power margin of the internal power supply when the access point multilink device is powered by the internal power supply.

For example: when the multi-link device of the access point is powered by an internal power supply and the power margin of the internal power supply is less than a fixed proportion of the total power, set the preset threshold of the link to the first threshold; When the link device is powered by an internal power supply and the power reserve of the internal power supply is greater than or equal to a fixed proportion of the total power supply, the preset threshold of the link is set as the second threshold.

• The status of the site's multilink devices.

The status of the site multilink device includes, but is not limited to, the power headroom of the internal power supply when the site multilink device is powered by the internal power supply.

For example: when the site multi-link device is powered by an internal power supply and the power margin of the internal power supply is less than a fixed percentage of the total power, set the preset threshold of the link as the first threshold; when the site multi-link device uses the internal power supply When the power supply is supplied by the power supply and the power reserve of the internal power supply is greater than or equal to a fixed proportion of the total power, the preset threshold of the link is set as the second threshold.

It should be noted that, in the example of the above basis, the first threshold, the second threshold and the third threshold may be the same or different, and the first threshold, the second threshold and the third threshold include but are not limited to: A fixed value, or a fixed ratio of the number of packets that need to be transmitted, or a fixed ratio of the number of links.

It should be noted that the links in the above basis usually refer to links controlled by preset thresholds, but it does not rule out the possibility of referring to links not controlled by preset thresholds, nor does it rule out the possibility of referring to The situation of all or part of the links established between the AP MLD and the STA MLD.

The target link is part or all of the links between the AP MLD and the STA MLD. In this embodiment, the basis for determining the target link is not limited. Exemplarily, the basis for determining the target link includes but is not limited to at least one of the following basis:

The frequency band used by the link;

For example: Considering that the anti-interference capabilities of links using 2.4GHz, 5GHz, and 6GHz frequency bands are different, the links are sorted according to the anti-interference capabilities from weak to strong, and one or more links ranked first are determined as the target link .

The type of data packets transmitted by the link during the service period;

For example: when the data packet type is the first type, considering the accuracy requirements, one or more links that do not meet the accuracy requirements are determined as target links; when the data packet type is the second type, Considering the timeliness requirement, one or more links that do not meet the timeliness requirement are determined as target links.

For example: when the maximum number of data packets transmitted by multiple links in the service period is different, sort them according to the maximum number of data packets transmitted in the service period from large to small, and the one or more chains that are sorted in front The path is determined as the target link.

The link quality of the link;

Link quality includes but is not limited to: at least one of wireless signal quality, interference conditions, and load conditions;

For example: according to the numerical value of one or several characteristic indicators of link quality, sort from small to large, and determine one or more links ranked first as the target link.

· Randomly determined;

For example: one or more links are randomly determined as target links.

• The link state of the link.

The link status includes but not limited to: at least one of whether the link is transmitting QoS data packets and whether the link is in sleep mode.

For example: when some links are transmitting QoS data packets, one or more links that are not transmitting QoS data packets are determined as target links.

It should be noted that the link in the above basis usually refers to a link controlled by a preset threshold, but it does not exclude the possibility of referring to a link not controlled by a preset threshold, nor does it rule out the possibility of referring to The situation of all or part of the links established between the AP MLD and the STA MLD.

In the case where the first number is less than or equal to the number of all links between the AP MLD and the STA MLD, when data transmission is performed in the next frame, there are some links that do not have data packets to transmit, and the AP MLD will The first field of the first data packet transmitted on the target link is set to the first value. In the case that the target link does not need to send a data packet, it is avoided to send another EOSP field only to indicate the end of the SP. The QoS empty packet carries the operation of the EOSP field.

Exemplarily, in an optional design of this embodiment, 3 links are established between the AP MLD and the STA MLD, and the 3 links respectively use three frequency bands of 2.4GHz, 5GHz, and 6GHz to realize data transmission, and each link The maximum number of data packets transmitted during the service period is not limited. In the case of the need to transmit 150 QoS data packets, according to the number of data packets that need to be transmitted during the service period according to all links established between AP MLD and STA MLD , set the preset threshold to 60. If the first number is less than or equal to the preset threshold, the link using the 5GHz frequency band is determined as the target link according to the frequency band used by the link and the link quality of the link. Set the first field of the first data packet transmitted on the target link to the first value. The target link is one of the 3 links established between the AP MLD and the STA MLD. Optionally, the first field of the second data packet transmitted on other links except the target link is set to The second value. STA MLD sends ACK to AP MLD after receiving the first field carried by the first data packet transmitted on the target link. After the service period of the target link ends, STA can choose to enter sleep mode to save power consumption. The remaining 60 QoS data packets are transmitted by two links using 2.4GHz and 6GHz frequency bands.

Use two links in the 2.4GHz and 6GHz frequency bands to transmit 60 QoS data packets until the first number is less than or equal to the number of all links between AP MLD and STA MLD, according to the data to be transmitted on the link during the service period The number of packets, the two links using the 2.4GHz and 6GHz frequency bands are determined as the target link. Set the first field of the first data packet transmitted on the target link to the first value. STA MLD sends ACK to AP MLD after receiving the first field carried by the first data packet transmitted on the target link. After the service period of the target link ends, STA can choose to enter sleep mode to save power consumption.

For step 503, refer to the specific content of step 503 in the embodiment shown in FIG. 5 above, which will not be repeated in this embodiment.

To sum up, in the method provided by this embodiment, when the first number is less than or equal to the preset threshold, the first field of the target link is set to indicate the end of the service period, which saves time when the number of data packets to be transmitted is small. The link resources in the case of , while taking into account the transmission efficiency, save the power consumption of the link connection and avoid the waste of link resources.

In the case that the first number is less than or equal to the number of all links between the first multi-link device and the second multi-link device, the first field of the target link is set to indicate the end of the service period. While improving the transmission efficiency, it saves the power consumption of the link connection and avoids the waste of link resources.

FIG. 7 provides a flow chart of a multi-link communication method provided by an embodiment of the present application. The method can be executed by an access point multi-link device in the implementation environment shown in FIG. 2 , and the method includes:

Step 506: When the link quality of the target link is satisfied to be lower than the quality threshold, the first multi-link device sets the first field of the first data packet transmitted on at least one target link to a first value.

The link quality of the target link includes at least one of the following:

· Wireless signal quality;

The wireless signal quality evaluates the link quality of the target link from the dimension of signal quality. Exemplarily, the indicators characterizing the wireless signal quality include but are not limited to at least one of the following indicators: Signal Strength (Received Signal Strength Indication, RSSI), Link Quality Indication (LQI), Receive Rate (Packet-Delivery Ratio, PDR).

· Interference situation;

The interference situation evaluates the link quality of the target link from the dimension of the interference situation of the link. Exemplary, the indicators that characterize the interference situation include but are not limited to at least one of the following indicators: Signal-to-Noise Ratio , SNR), bit error rate (Bit-Error Rate, BER).

· Load conditions.

The load condition evaluates the link quality of the target link from the dimension of the load condition of the link. Exemplarily, the indicators characterizing the load condition include but are not limited to at least one of the following indicators: throughput (Throughput), channel utilization ( Channel Utilization), the number of site devices that are using the link.

In this embodiment, there is no restriction on the setting method of the quality threshold, and the setting method of the quality threshold includes but is not limited to at least one of the following methods: directly determined by AP MLD, directly determined by STA MLD, or directly determined by AP MLD and STA Determined by MLD negotiation.

In this embodiment, the basis for determining the quality threshold is not limited. Exemplarily, the basis for determining the quality threshold includes at least one or several characterization indicators of link quality. The basis for determining the quality threshold also includes but is not limited to the following Based on at least one of:

The frequency band used by the link;

For example: considering the different power consumption per unit time of links using 2.4GHz, 5GHz, and 6GHz frequency bands, set the quality threshold of links using 2.4GHz frequency band to the first quality threshold, and set the quality threshold of links using 5GHz frequency band to As the second quality threshold, the quality threshold of the link using the 6GHz frequency band is set as the third quality threshold, and the quality thresholds set for different links may be different or the same.

The type of data packets transmitted by the link during the service period;

For example: when the data packet type is the first type, set the preset quality threshold of the link to the first quality threshold; in the case of the second type of data packet, set the link quality threshold to the second Quality threshold; the basis for classifying data packet types includes, but is not limited to: timeliness requirements for data packet transmission, accuracy requirements for data packet transmission, and the number of bytes in the data packet.

For example: when the maximum number of data packets transmitted during the service period is not limited, the quality threshold of the link is set to the first quality threshold; the maximum number of data packets transmitted during the service period is limited by a specific value In this case, the quality threshold of the link is set as the second quality threshold.

The number of data packets to be transmitted on the link during the service period;

For example: when the number of data packets to be transmitted during the service period exceeds a fixed multiple of the number of links, set the quality threshold of the link to the first quality threshold; the number of data packets to be transmitted during the service period does not exceed the number of links In the case of a fixed multiple, the quality threshold of the link is set as the second quality threshold.

It should be noted that, in the example of the above basis, the first quality threshold, the second quality threshold and the third quality threshold may be the same or different; the quality thresholds include but are not limited to: The value of the link quality index is greater than or less than a certain fixed value.

To sum up, in the method provided by this embodiment, when the link quality of the target link is worse than the quality threshold, the first field of the target link is set to indicate the end of the service period, and the high-quality link is used for data processing. Transmission, while taking into account transmission efficiency, saves link connection power consumption and avoids waste of link resources.

FIG. 8 provides a flow chart of a multi-link communication method provided by an embodiment of the present application. The method can be executed by an access point multi-link device in the implementation environment shown in FIG. 2 , and the method includes:

Step 508: When the first number is less than or equal to the preset threshold, and the link quality of the target link is worse than the quality threshold; or, the first number is less than or equal to the difference between the first multi-link device and the second multi-link device When the number of all links between and the link quality of the target link is worse than the quality threshold, the first multi-link device sets the first field of the first data packet transmitted on at least one target link to the first value.

When the first number is less than or equal to the preset threshold, and the link quality of the target link is worse than the quality threshold, the remaining number of data packets to be transmitted is small, and combined with the link quality of the link, the target link The first field of the first data packet transmitted on the Internet is set to the first value, and the link whose link quality does not meet the quality threshold is no longer used for data transmission.

It should be noted that there are no restrictions on the timing relationship between judging that the first number is less than or equal to the preset threshold and judging that the link quality of the target link is worse than the quality threshold. The above two judging processes can be performed in any order, or can be Execute at the same time.

When the first number is less than or equal to the number of all links between the AP MLD and the STA MLD, and the link quality of the target link is worse than the quality threshold, when the next frame performs data transmission, some When there is no data packet to be transmitted on the link, and in combination with the link quality of the link, the first field of the first data packet transmitted on the target link is set to the first value, which avoids that the target link does not need to send data In the case of a packet, only to send the EOSP field indicating the end of the SP, it is necessary to send another QoS empty data packet to carry the EOSP field, and no longer use the link whose link quality does not meet the quality threshold for data transmission.

It should be noted that: there is no restriction on the timing relationship between the number of all links between the AP MLD and the STA MLD judged to be less than or equal to the first number and the link quality of the judged target link being worse than the quality threshold, The above two judging processes may be executed in any order, or may be executed simultaneously.

To sum up, in the method provided by this embodiment, when the first number is less than or equal to the preset threshold and the link quality of the target link is worse than the quality threshold, the first field of the target link is set to indicate At the end of the service period, the remaining number of data packets to be transmitted and the link quality are considered comprehensively, which saves link resources when the number of data packets to be transmitted is small, and saves link connection work while taking into account transmission efficiency. consumption and avoid link resource waste.

When the first number is less than or equal to the number of all links between the first multi-link device and the second multi-link device, and the link quality of the target link is worse than the quality threshold, the first link of the target link One field is set to indicate the end of the service period, taking into account the remaining number of data packets to be transmitted and the link quality, while ensuring transmission efficiency, it saves link connection power consumption and avoids waste of air interface resources.

FIG. 9 provides a flow chart of a multi-link communication method provided by an embodiment of the present application. The method can be executed by an access point multi-link device in the implementation environment shown in FIG. 2 , and the method includes:

Step 502 and step 503 refer to the description in the embodiment shown in FIG. 5 above, and details are not repeated in this embodiment. The logical relationship between step 502 and step 510 is OR.

Step 510: When the second condition is met, the AP MLD sets the first field of the first data packet transmitted on the target link to the first value.

The second condition is determined by the maximum number of data packets transmitted on the target link within the service period.

Exemplarily, the second condition includes but is not limited to: the number of transmitted data packets on the target link is equal to a-1; wherein, the parameter a is the maximum number of data packets transmitted on the target link within the service period.

Exemplarily, in an optional design of this embodiment, two links are established between the AP MLD and the STA MLD, the maximum number of data packets transmitted by link 1 during the service period is 1, and link 2 is in service The maximum number of packets transmitted during this period is 2. In the case of needing to transmit 3 QoS data packets, according to the second condition, the first field of the first data packet transmitted on link 1 is set to the first value, and the STA MLD receives the first field transmitted on link 1 After the first field carried in a data packet, an ACK is sent to the AP MLD, and the service period of link 1 ends, and the STA can choose to enter the sleep mode to save power consumption. The target link is one of the two links established between the AP MLD and the STA MLD. Optionally, the first field carried in the first QoS data packet transmitted on the link 2 is set to the second value. STA MLD sends ACK to AP MLD after receiving the first field carried by the first QoS packet transmitted on link 2. According to the second condition, the first field carried by the second QoS data packet transmitted on link 2 is set to the first value, and the STA MLD receives the field carried by the second QoS data packet transmitted on link 2. After the first field, an ACK is sent to the AP MLD, and the service period of link 2 ends, and the STA can choose to enter the sleep mode to save power consumption.

To sum up, the method provided by this embodiment fully considers that the maximum number of data packets transmitted on the target link during the service period is limited, and the number of data packets transmitted on the target link within the service period is increased. Based on the maximum number of data packets, the first field carried in the packet sent by the first multi-link device on the link is determined, which improves the adaptability of the multi-link communication method.

FIG. 10 provides a flow chart of a multi-link communication method provided by an embodiment of the present application. The method can be executed by an access point multi-link device in the implementation environment shown in FIG. 2 , and the method includes:

Step 501: In the case of receiving a trigger frame sent by the second multi-link device on the i-th link of the n links, start a service period on the i-th link.

i is an integer not greater than n. That is, the links that start the service period may be some or all of the n links.

After the second multi-link device sends a successful trigger frame to the first multi-link device, the first multi-link device receives the trigger frame, and the second multi-link device in sleep mode and the first multi-link device obtain a service period.

Step 502 and step 503 refer to the description in the embodiment shown in FIG. 5 above, and details are not repeated in this embodiment.

To sum up, the first multi-link device receives the trigger frame to start the service period, which provides the second multi-link device in sleep mode with a server that can receive the data packets sent by the first multi-link device, enriching the Power management state in UAPSD mechanism.

It can be understood that the above method embodiments may be implemented individually or in combination, which is not limited in the present application.

The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Fig. 11 shows a block diagram of a multi-link communication device provided by an exemplary embodiment of the present application, the device includes:

The first setting module 1101 is configured to set the first field of the first data packet transmitted on at least one target link to a first value when the first condition is met, and the first value is used to indicate end of service period;

A sending module 1102, configured to send the first data packet carrying the first field on the at least one target link;

In an optional design of this implementation, the first condition includes:

the first quantity is less than or equal to a preset threshold;

or,

The first number is less than or equal to the number of all links between the first multi-link device and the second multi-link device;

Wherein, the first number is the number of remaining data packets to be transmitted on the n links.

In an optional design of this implementation, the first condition includes:

The link quality of the target link is worse than the quality threshold.

In an optional design of this implementation, the first condition includes:

The first number is less than or equal to a preset threshold, and the link quality of the target link is worse than a quality threshold;

or,

The first number is less than or equal to the number n of the n links, and the link quality of the target link is worse than a quality threshold.

In an optional design of this implementation, the link quality of the target link includes at least one of the following:

wireless signal quality;

Interference situation;

Load condition.

In an optional design of this implementation, the device also includes:

The second setting module 1103 is configured to set the first field of the first data packet transmitted on the target link as the first value when the second condition is met;

Wherein, the second condition is determined by the maximum number of data packets transmitted on the target link within the service period.

In an optional design of this implementation, the second condition includes:

The number of transmitted data packets on the target link is equal to a-1;

Wherein, parameter a is the maximum number of data packets transmitted on the target link within the service period.

In an optional design of this implementation, the device also includes:

A service period opening module 1104, configured to, in the case of receiving the trigger frame sent by the second multi-link device on the i-th link of the n links, to start the period of service;

Wherein, i is an integer not greater than n.

It should be noted that when the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.

Regarding the apparatus in the foregoing embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

FIG. 12 shows a schematic structural diagram of a multi-link device provided by an embodiment of the present application. The multi-link device may include: a processor 1201 , a receiver 1202 , a transmitter 1203 , a memory 1204 and a bus 1205 .

The processor 1201 includes one or more processing cores, and the processor 1201 executes various functional applications and information processing by running software programs and modules.

The receiver 1202 and the transmitter 1203 can be implemented as a transceiver, and the transceiver can be a communication chip.

The memory 1204 is connected to the processor 1201 through the bus 1205; for example, the processor 1201 can be implemented as a first IC chip, and the processor 1201 and the memory 1204 can be jointly implemented as a second IC chip; the first chip or the second chip can be It is an Application Specific Integrated Circuit (ASIC) chip.

The memory 1204 may be used to store at least one computer program, and the processor 1201 is used to execute the at least one computer program, so as to implement various steps performed by the access point multi-link device in the foregoing method embodiments.

In addition, the memory 1204 can be implemented by any type of volatile or nonvolatile storage device or their combination, and the volatile or nonvolatile storage device includes but is not limited to: ROM (Random-Access Memory, random Memory) and ROM (Read-Only Memory, RAM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory or other solid-state storage technology, compact disc read-only memory (CD-ROM), high-density digital video disc (Digital Video Disc, DVD) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.

The embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a multi-link device, so as to implement the above method for updating the scoreboard state.

Optionally, the computer-readable storage medium may include: a read-only memory (Read-Only Memory, ROM), a random-access memory (Random-Access Memory, RAM), a solid-state hard drive (Solid State Drives, SSD) or an optical disc. Wherein, the random access memory may include resistive random access memory (Resistance Random Access Memory, ReRAM) and dynamic random access memory (Dynamic Random Access Memory, DRAM).

The embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a multi-link device, it is used to implement the above-mentioned multi-link communication method.

An embodiment of the present application also provides a computer program product or computer program, where the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor of the multi-link device reads from the The computer-readable storage medium reads and executes the computer instructions, so as to implement the above-mentioned multi-link communication method.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.

The "plurality" mentioned herein means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.

In addition, the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps. In some other embodiments, the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers The steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.

Those skilled in the art should be aware that, in the foregoing one or more examples, the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above are only exemplary embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection of the application. within range.

Claims

A multi-link communication method, characterized in that it is applied to a first multi-link device, and there are n links between the first multi-link device and a second multi-link device, and the method includes :

When the first condition is met, the first multi-link device sets the first field of the first data packet transmitted on at least one target link to a first value, and the first value is used to indicate end of service period;

sending, by the first multi-link device, the first data packet carrying the first field on the at least one target link;

Wherein, the first condition is obtained based on information related to the n links.
The method according to claim 1, wherein the first condition comprises:

The first number is less than or equal to a preset threshold; or, the first number is less than or equal to the number of all links between the first multi-link device and the second multi-link device;

Wherein, the first number is the number of remaining data packets to be transmitted on the n links.
The method according to claim 1, wherein the first condition comprises:

The link quality of the target link is worse than the quality threshold.
The method according to claim 1, wherein the first condition comprises:

The first number is less than or equal to a preset threshold, and the link quality of the target link is worse than a quality threshold;

or,

The first number is less than or equal to the number n of the n links, and the link quality of the target link is worse than a quality threshold.
The method according to claim 3 or 4, wherein the link quality of the target link includes at least one of the following:

wireless signal quality;

Interference situation;

Load condition.
The method according to any one of claims 1 to 4, wherein the method further comprises:

When the second condition is met, the first multi-link device sets the first field of the first data packet transmitted on the target link as the first value;

Wherein, the second condition is determined by the maximum number of data packets transmitted on the target link within the service period.
The method according to claim 6, wherein the second condition comprises:

The number of transmitted data packets on the target link is equal to a-1;

Wherein, a is the maximum number of data packets transmitted on the target link within the service period.
The method according to any one of claims 1 to 4, characterized in that, when the first condition is met, the first multi-link device transfers the first data packet transmitted on at least one target link to Before the first field is set to the first value, it also includes:

In the case of receiving the trigger frame sent by the second multi-link device on the i-th link of the n links, enabling the service period on the i-th link;

Wherein, i is an integer not greater than n.
A first multi-link device, characterized in that there are n links between the first multi-link device and the second multi-link device, and the device includes:

The first setting module is configured to set the first field of the first data packet transmitted on at least one target link to a first value when the first condition is met, and the first value is used to indicate the service end of period;

a sending module, configured to send the first data packet carrying the first field on the at least one target link;

Wherein, the first condition is obtained based on information related to the n links.
The device according to claim 9, wherein the first condition comprises:

the first quantity is less than or equal to a preset threshold;

or,

The first number is less than or equal to the number of all links between the first multi-link device and the second multi-link device;

Wherein, the first number is the number of remaining data packets to be transmitted on the n links.
The device according to claim 9, wherein the first condition comprises:

The link quality of the target link is worse than the quality threshold.
The device according to claim 9, wherein the first condition comprises:

The first number is less than or equal to a preset threshold, and the link quality of the target link is worse than a quality threshold;

or,

The first number is less than or equal to the number n of the n links, and the link quality of the target link is worse than a quality threshold.
The device according to claim 11 or 12, wherein the link quality of the target link includes at least one of the following:

wireless signal quality;

Interference situation;

Load condition.
The device according to any one of claims 9 to 12, wherein the device further comprises:

A second setting module, configured to set the first field of the first data packet transmitted on the target link to the first value when the second condition is met;

Wherein, the second condition is determined by the maximum number of data packets transmitted on the target link within the service period.
The device according to claim 14, wherein the second condition comprises:

The number of transmitted data packets on the target link is equal to a-1;

Wherein, parameter a is the maximum number of data packets transmitted on the target link within the service period.
The device according to any one of claims 9 to 12, wherein the device further comprises:

A service period opening module, configured to, in the case of receiving the trigger frame sent by the second multi-link device on the i-th link of the n links, on the i-th link Commencement of said service period;

Wherein, i is an integer not greater than n.
A wireless fidelity WiFi device, characterized in that the WiFi device includes a processor and a memory, and at least one section of program is arranged in the memory; the processor is configured to execute the at least one section of program in the memory In order to realize the multi-link communication method described in any one of claims 1 to 8 above.
A computer-readable storage medium, wherein a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to realize the multi-link described in any one of claims 1 to 8. communication method.
A chip, characterized in that the chip includes programmable logic circuits and/or program instructions, which are used to implement the multi-link communication method described in any one of claims 1 to 8 when the chip is running .
A computer program product or computer program, characterized in that the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads the computer-readable storage medium from the computer-readable storage medium And execute the computer instructions to realize the multi-link communication method described in any one of claims 1 to 8 above.