CN114760719B - Method, apparatus, device and storage medium for discovering and connecting to soft access device - Google Patents

Method, apparatus, device and storage medium for discovering and connecting to soft access device Download PDF

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Publication number
CN114760719B
CN114760719B CN202111179656.0A CN202111179656A CN114760719B CN 114760719 B CN114760719 B CN 114760719B CN 202111179656 A CN202111179656 A CN 202111179656A CN 114760719 B CN114760719 B CN 114760719B
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link
information
access point
main
connection
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CN114760719A (en
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吴昊
尹蕾
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Jimi Technology Co ltd
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Jimi Technology Co ltd
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Priority to CN202111179656.0A priority Critical patent/CN114760719B/en
Priority to PCT/CN2022/101383 priority patent/WO2023060940A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/10Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Abstract

The application discloses a method, a device, equipment and a storage medium for discovering and connecting to soft access equipment. The method comprises the following steps: receiving a broadcast message on a first link, wherein the multi-link information element comprises an identifier of the first link; transmitting a probe request message on a first link, wherein the multi-link information element contained in the probe request message contains an identifier of the first link; receiving a detection response message on a first link, wherein the multi-link information element comprises information of an access point on the first link and information of an access point on a second link; transmitting a connection request message on a first link; receiving a connection response message on the first link; and setting a main link and a non-main link according to the connection response message. The application can avoid packet loss caused by asynchronous receiving and transmitting interference on two logic access points, expands the coverage area of a wireless network, improves the data transmission rate, eliminates the interference between links, reduces the packet loss rate and ensures the effective throughput rate of the network.

Description

Method, apparatus, device and storage medium for discovering and connecting to soft access device
Technical Field
The present application relates to the field of wireless communications, and in particular, to a method, apparatus, device, and storage medium for discovering and connecting to a soft access device.
Background
802.11be networks, also known as Extremely High Throughput (EHT) networks, enhance functionality through a range of system characteristics and mechanisms to achieve extremely high throughput. As the use of Wireless Local Area Networks (WLANs) continues to grow, it is increasingly important to provide wireless data services in many environments, such as homes, businesses, and hotspots. In particular, video traffic will continue to be the dominant traffic type in many WLAN deployments. The throughput requirements of these applications are evolving due to the advent of 4k and 8k video (20 Gbps uncompressed rate). New high throughput, low latency applications such as virtual or augmented reality, gaming, remote offices, and cloud computing will proliferate (e.g., latency for real-time gaming is less than 5 milliseconds).
In view of the high throughput and stringent real-time delay requirements of these applications, users desire to support their applications over a WLAN with higher throughput, higher reliability, less delay and jitter, and higher power efficiency. Users desire improved integration with Time Sensitive Networks (TSNs) to support applications on heterogeneous ethernet and wireless LANs. The 802.11be network aims to ensure the competitiveness of WLAN by further improving the overall throughput and reducing the delay while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz,5GHz and 6GHz frequency bands.
Disclosure of Invention
After introducing the technology of multilink, a device having the capability to operate on multiple links simultaneously is called a multilink device. The multi-link terminal device can set two logic entities as logic access points, called soft AP MLD, and soft access devices when the service needs. However, due to the limited capability of the multi-link terminal device, when one link is transmitting data, another link may not receive data due to interference, so if two logic access points are allowed to access the terminal device independently and perform data independently like a conventional multi-link access device, data loss can be caused, and data retransmission finally leads to larger service delay of a user, which actually reduces user experience. In the present application, therefore, the soft access device sets the link where one of the two logical access points is located as the primary link, and the link where the other access point is located as the non-primary link, and the soft access device only transmits the broadcast message on the primary link, but does not transmit the broadcast message on the non-primary link. In view of this, embodiments of the present application provide a method, apparatus, device, and storage medium for discovering and connecting to a soft access device.
In a first aspect, an embodiment of the present application provides a method for discovering and connecting to a soft access device, applied to a multi-link terminal device, including:
receiving a broadcast message on a first link, wherein the broadcast message comprises an adjacent access point report information element and a multi-link information element, and the multi-link information element in the broadcast message comprises an identifier of the first link;
transmitting a detection request message on a first link, wherein the detection request message comprises a multi-link information element, and the multi-link information element in the detection request message comprises an identifier of the first link;
receiving a detection response message on a first link, wherein the detection response message comprises a multi-link information element, the multi-link information element in the detection response message comprises information of an access point on the first link and information of an access point on a second link, the information of the access point on the first link comprises identification of the first link and capability information or/and operation information of the access point operating on the first link, and the information of the access point on the second link comprises identification of the second link and capability information or/and operation information of the access point operating on the second link, and the access point operating on the first link and the access point operating on the second link belong to the same multi-link equipment;
Transmitting a connection request message on a first link, wherein the connection request message comprises a multi-link information element, the multi-link information element in the connection request message comprises information of a first link which requests to establish connection and information of a second link which requests to establish connection, the information of the first link which requests to establish connection comprises an identification of the first link and capability information of a logic entity of the multi-link terminal equipment operating on the first link, and the information of the second link which requests to establish connection comprises an identification of the second link and capability information of the logic entity of the multi-link terminal equipment operating on the second link;
receiving a connection response message on a first link, wherein the connection response message comprises a multi-link information element, the multi-link information element in the connection response message comprises information of a first link which agrees to establish connection and information of a second link which agrees to establish connection, the information of the first link which agrees to establish connection comprises an identification of the first link, an indication of whether the first link is a main link on soft access equipment and capability information or/and operation information of an access point operated on the first link, and the information of the second link which agrees to establish connection comprises an identification of the second link, an indication of whether the second link is a main link on the soft access equipment and capability information or/and operation information of the access point operated on the second link;
And setting a main link and a non-main link according to the connection response message.
In one possible implementation manner, the report information element of the adjacent access point includes an identifier of the second link, and indicates that the access point operating on the first link and the access point operating on the second link belong to the same multi-link device, and the multi-link information element in the probe request message further includes the identifier of the second link.
In one possible implementation, the neighbor access point report information element further includes an indication of whether the second link is a primary link on the soft access device.
In a possible implementation manner, the multi-link information element in the broadcast message further includes an indication whether the first link is a primary link on the soft access device or includes an indication whether the first link is a soft access device.
In one possible implementation, the information of the access point on the first link and the information of the access point on the second link each further include an indication of whether the access point is a primary link on a soft access device.
In one possible implementation manner, after setting the main link and the non-main link according to the connection response message, the method further includes:
If the main link and the non-main link are idle, transmitting data on the main link and the non-main link at the same time;
if the main link is idle, but the non-main link is not idle, data is only sent on the main link;
if the primary link is not idle, no data is sent.
In a second aspect, an embodiment of the present application provides an apparatus for discovering and connecting to a soft access device, applied to a multi-link terminal device, including:
a broadcast message receiving module, configured to receive a broadcast message on a first link, where the broadcast message includes a neighboring access point report information element and a multilink information element, and the multilink information element in the broadcast message includes an identifier of the first link;
a probe request message sending module, configured to send a probe request message on a first link, where the probe request message includes a multilink information element, and the multilink information element in the probe request message includes an identifier of the first link;
the detection response message receiving module is used for receiving a detection response message on a first link, wherein the detection response message comprises a multi-link information element, the multi-link information element in the detection response message comprises information of an access point on the first link and information of an access point on a second link, the information of the access point on the first link comprises identification of the first link and capability information or/and operation information of the access point operating on the first link, the information of the access point on the second link comprises identification of the second link and capability information or/and operation information of the access point operating on the second link, and the access point operating on the first link and the access point operating on the second link belong to the same multi-link equipment;
A connection request message sending module, configured to send a connection request message on a first link, where the connection request message includes a multi-link information element, and the multi-link information element in the connection request message includes information for requesting to establish a first link of a connection and information for requesting to establish a second link of the connection, where the information for requesting to establish the first link includes an identifier of the first link and capability information of a logical entity of the multi-link terminal device operating on the first link, and the information for requesting to establish the second link includes an identifier of the second link and capability information of the logical entity of the multi-link terminal device operating on the second link;
a connection response message receiving module, configured to receive a connection response message on a first link, where the connection response message includes a multi-link information element, and the multi-link information element in the connection response message includes information that agrees to establish a first link of a connection and information that agrees to establish a second link of the connection, where the information that agrees to establish the first link includes an identifier of the first link, an indication of whether the first link is a primary link on a soft access device, and capability information or/and operation information of an access point operating on the first link, and the information that agrees to establish the second link includes an identifier of the second link, an indication of whether the second link is a primary link on the soft access device, and capability information or/and operation information of the access point operating on the second link;
And the main link setting module is used for setting a main link and a non-main link according to the connection response message.
In one possible implementation manner, the report information element of the adjacent access point includes an identifier of the second link, and indicates that the access point operating on the first link and the access point operating on the second link belong to the same multi-link device, and the multi-link information element in the probe request message further includes the identifier of the second link.
In one possible implementation, the neighbor access point report information element further includes an indication of whether the second link is a primary link on the soft access device.
In a possible implementation manner, the multi-link information element in the broadcast message further includes an indication whether the first link is a primary link on the soft access device or includes an indication whether the first link is a soft access device.
In one possible implementation, the information of the access point on the first link and the information of the access point on the second link each further include an indication of whether the access point is a primary link on a soft access device.
In a possible implementation manner, the device further comprises a data sending module, wherein the data sending module is used for executing the following steps:
If the main link and the non-main link are idle, transmitting data on the main link and the non-main link at the same time;
if the main link is idle, but the non-main link is not idle, data is only sent on the main link;
if the primary link is not idle, no data is sent.
In a third aspect, embodiments of the present application provide an apparatus for discovering and connecting to a soft access device, comprising a memory, a processor and a computer program stored on the memory, the processor executing the computer program to carry out the steps of the method of the first aspect.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of the method of the first aspect.
In a fifth aspect, embodiments of the present application provide a computer program product comprising instructions which, when executed by a processor, implement the steps of the method of the first aspect.
It should be noted that, the apparatus according to the second aspect, the device according to the third aspect, the storage medium according to the fourth aspect, and the computer program product according to the fifth aspect are configured to execute the method provided in the first aspect, so that the same beneficial effects as those of the method in the first aspect can be achieved, and embodiments of the present application are not repeated.
The application carries out classified management on a plurality of logic access points of the soft AP MLD, carries out different management on broadcast information of different logic access points, thereby controlling the traditional single-link terminal equipment to be only connected to one main logic access point, controlling the multi-link terminal equipment to be connected to the main logic access point and the non-main logic access point, and controlling the multi-link terminal equipment and the soft AP MLD to simultaneously transmit and receive data on two links, thereby avoiding packet loss caused by asynchronous transmitting and receiving interference on the two logic access points, expanding the coverage area of a wireless network, improving the data transmission rate, simultaneously eliminating the interference among the links, reducing the packet loss rate and guaranteeing the effective throughput rate of the network.
Drawings
Fig. 1 is a schematic diagram of a method for discovering and connecting to a soft access device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an apparatus for discovery and connection to a soft access device according to an embodiment of the present application;
fig. 3 is a schematic diagram of another apparatus for discovery and connection to a soft access device according to an embodiment of the present application;
fig. 4 is a schematic diagram of a device structure for discovering and connecting to a soft access device according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions of the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. While the present disclosure has been described in terms of an exemplary embodiment or embodiments, it should be understood that each aspect of the disclosure may be separately provided as a complete solution. The following embodiments and features of the embodiments may be combined with each other without conflict.
In the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one of a, b or c may represent: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b and c may be single or plural. In addition, in order to clearly describe the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect, and those skilled in the art will understand that the words "first", "second", etc. do not limit the number and execution order. For example, "first" in the first trigger message and "second" in the second trigger message in the embodiment of the present application are only used to distinguish different trigger messages. The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order is used, nor is the number of the devices in the embodiments of the present application limited, and no limitation on the embodiments of the present application should be construed.
In the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In the embodiment of the present application, it is assumed that a logical access point AP1 is established in a multi-link terminal device MLD1 (i.e., soft AP MLD 1), the multi-link terminal device MLD1 operates on a link1 and a logical access point AP2, the multi-link terminal device MLD1 and the logical access point AP2 operate on a link2, the link1 and the link2 are a pair of NSTR link pairs, that is, when data cannot be simultaneously transmitted on one link, the link1 is set as a primary link, the link2 is set as a non-primary link, the soft AP MLD1 transmits a beacon message only on the link1 through the AP1 or transmits a probe response message in response to other terminal devices, and does not transmit a beacon message on the link2 or transmit a probe response message in response to other terminal devices. The multi-link terminal device STA MLD2 comprises two logical entities STA3, which may operate on link1 and STA4, which may operate on link 2.
Fig. 1 is a schematic diagram of a method for discovering and connecting to a soft access device according to an embodiment of the present application. As shown in fig. 1, the method of discovering and connecting to a soft access device comprises the steps of:
s101, a soft AP MLD1 sends a broadcast message (such as a beacon message or a probe response message) through an AP1, wherein the broadcast message comprises an adjacent access point report information element Reduced Neighbor Report element (RNR element for short) and a multi-link information element Multi link element, and the RNR element comprises a link2 identifier and an indication of whether the link2 is a main link on a soft access device, and indicates that an access point operating on the link1 and an access point operating on the link2 belong to the same multi-link device; multi link element includes the identification of link 1. Illustratively, RNR elements contain the parameters shown in table 1, and Multi link element contains the parameters shown in table 2.
TABLE 1
The parameter may be specifically included when the current device in table 1 is a soft AP MLD, and the local setting parameter dot11 softapmldimegmented value is true; alternatively, when the local set parameter dot11SoftAPMLDImplemented value is true, and there is a pair of NSTR link pairs, this parameter is included.
TABLE 2
After reading the broadcast message sent by the soft AP MLD1 through the AP1, the single link terminal device sends a connection request message (such as a association request message) to the soft AP MLD1 on the link1, requests to connect to the soft AP MLD1, and establishes a connection with the soft AP MLD1 after receiving a connection response message (such as a association response message) sent by the soft AP MLD 1.
S102. After the STA MLD2 reads the broadcast message sent by the soft AP MLD1 through the AP1 on the link1, a probe request message (such as a probe request message) is sent to the soft AP MLD1 on the link1, the probe request message comprises a multilink information element Multi link element, and Multi link element of the probe request message comprises the identification of the link1 and the identification of the link 2. The parameters shown in table 3 are included in Multi link element in the probe request message, for example.
TABLE 3 Table 3
The STA profile may include parameters shown in table 4.
TABLE 4 Table 4
S103, after receiving the probe request message, the soft AP MLD1 constructs a probe response message (such as a probe response message) according to the setting in the parameter Multi Link element, and sends the probe response message to the STA MLD2 on the Link1, wherein the information of the Link indicated by the Link ID in Multi Link element is contained, if the corresponding parameter Complete Profile value of the Link is 1, all the information of the Link is contained in the probe response message, and if the Complete Profile value is 0, the parameter indicated in the Profile is contained in the probe response message, the probe response message contains Multi Link element, and the Multi Link element contains the parameters shown in Table 5.
TABLE 5
Wherein, AP profile 1 and AP profile 2 contain parameters shown in Table 6.
TABLE 6
The capability information or/and operation information of AP1 and the capability information or/and operation information of AP2 in table 6 may also be understood as capability information or/and operation information of soft AP MLD1 on link1, and capability information or/and operation information on link 2. In order to distinguish the capability and operation information of the terminal equipment on the link and the capability and operation information of the access point on the link, different parameters are used for distinguishing the description, namely STA profile (information of the terminal on the link) and AP profile (information of the access point on the link).
S104. after receiving the probe response message, sta MLD2 sends a connection request message (e.g. association request message) to soft AP MLD1 on link1, where Multi link element is included and Multi link element includes the parameters shown in table 7.
TABLE 7
The STA profile contains parameters shown in table 8.
TABLE 8
S105.soft AP MLD1, after receiving the connection request message, establishes a corresponding connection according to the Link ID in Multi Link element, and sends a connection response message (e.g. association response message) to STA MLD2 on Link1, where the connection response message includes Multi Link element, and the Multi Link element includes parameters shown in table 9.
TABLE 9
Wherein, AP profile 1 and AP profile 2 contain parameters shown in Table 10.
Table 10
And S106. After the STA MLD2 receives the connection response message, the link1 is set as a main link and the link2 is set as a non-main link according to the indication of the parameter Primary link on soft AP in the received connection response message.
STA3 of STA MLD2 operates on a main link, STA4 operates on a non-main link, and when STA3 and STA4 affiliated multi-link terminal devices STA MLD2 need to transmit data,
firstly, detecting whether a link where the STA3 is located, namely a main link is idle, if so, detecting whether a link where the STA4 is located, namely a non-main link is idle, and if so, transmitting data on the two links simultaneously;
if the main link is not idle, whether the non-main link is idle or not is not detected, and data is not sent;
if the primary link is idle, but it is detected that the non-primary link is not idle, data is only sent on the primary link.
When a logical access point is to be deleted by soft AP MLD1, a multi-link reconfiguration notification message (ML reconfiguration NOTIFY message) is sent in a broadcast or unicast manner through AP1 affiliated to soft AP MLD1,
1) When soft AP MLD1 is to delete a non-primary link, the ML reconfiguration NOTIFY message contains the parameters shown in table 11.
TABLE 11
Parameters (parameters) Description of the invention
Link ID Identification set as non-main link
Delete timer Deleting the time remaining by the access point corresponding to the link
2) When soft AP MLD1 is to delete the primary link, leaving the non-primary link, the ML reconfiguration NOTIFY message contains the parameters shown in table 12.
Table 12
Parameters (parameters) Description of the invention
Link ID Identification set as primary link
Delete timer Deleting the time remaining by the access point corresponding to the link
New primary Link Identification set as non-main link
After STA3 affiliated to the multi-link terminal STA MLD2 receives the ML reconfiguration NOTIFY message,
if the Link ID value is the identification of the non-main Link, disconnecting the Link before the time indicated by the delay timer;
if the Link ID value is the identification of the main Link and does not contain the New primary Link parameter, disconnecting all links before the time indicated by the delay timer;
if the Link ID value is the identification of the main Link and the New primary Link value is the identification of the non-main Link, setting the local original non-main Link as the main Link before the time indicated by the Delete timer, and disconnecting the connection of the original main Link.
In another embodiment, in step S101, the RNR element included in the broadcast message sent by the AP1 does not include information of the AP2, and Multi link element included in the broadcast message includes an identifier of link1 and an indication of whether link1 is a primary link on the soft access device, or includes an identifier of link1 and an indication of whether link1 is a soft access device, where, for example, the parameters included in Multi link element are shown in table 13 or table 14.
TABLE 13
TABLE 14
In this embodiment, in step S102, after the STA MLD2 reads the broadcast message of the AP1 on link1, it knows that the access device is a soft access device according to the parameters Primary link on soft AP or soft AP indicator in the message, and sends a probe request message to the AP1 on link1, where the probe request message includes the multi-link information element Multi link element, and in this example, the parameters shown in table 15 are included in the Multi link element.
TABLE 15
In step S103, after receiving the probe request message, if the message includes Multi link element and the current device type is a soft access device, the soft AP MLD1 sends a probe response message to the STA MLD2 on link1, where the probe response message includes information of link1 as a primary link and information of link2 as a non-primary link, and the probe response message includes parameters shown in table 16, for example. For other steps in this embodiment, reference may be made to the above embodiment, and no further description is given here.
Table 16
In yet another embodiment, in step S101, the RNR element included in the broadcast message sent by the AP1 includes information of the AP2, but has no other indication, and the broadcast message includes Multi link element including an identifier of the link1 and an indication of whether the link1 is a primary link on the soft access device, or includes an identifier of the link1 and an indication of whether the link1 is a soft access device, where, for example, the RNR element includes parameters shown in table 17, and the Multi link element includes parameters shown in table 18 or table 19.
TABLE 17
TABLE 18
TABLE 19
In this embodiment, in step S102, after the STA MLD2 reads the broadcast message of the soft AP MLD1 on link1, it knows that the device is a soft access device according to the parameters Primary link on soft AP or soft AP indicator in the message, and sends a probe request message to the soft AP MLD1 on link1, where the probe request message includes the information element Multi link element, and illustratively, the parameters shown in table 20 are included in the Multi link element. For other steps in this embodiment, reference may be made to the above embodiment, and no further description is given here.
Table 20
In yet another embodiment, in step S101, the RNR element included in the broadcast message sent by the AP1 does not include information of the AP2, and the broadcast message includes Multi link element including the link1 identifier, but does not include other indications, and illustratively, the Multi link element includes the parameters shown in table 21.
Table 21
In this embodiment, in step S102, after the STA MLD2 reads the broadcast message of the soft AP MLD1 on link1, if the message includes Multi link element, the STA MLD2 sends a probe request message to the soft AP MLD1 on link1, which includes the multi-link information element Multi link element, and the parameters shown in table 22 are included in Multi link element.
Table 22
In step S103, after receiving the probe request message, if the message includes Multi link element and the type of the current device is a soft access device, the soft AP MLD1 sends a probe response message to the STA MLD2 on the link1, where the probe response message includes information of the link1 as a main link and information of the link2 as a non-main link, and the probe response message includes parameters shown in table 23. For other steps in this embodiment, reference may be made to the above embodiment, and no further description is given here.
Table 23
In yet another embodiment, in step S101, the RNR element included in the broadcast message sent by the AP1 includes information of the AP2, but no other indication, and the broadcast message includes Multi link element including an identifier of the link1, but no other indication, where, for example, the RNR element includes parameters shown in table 24, and the Multi link element includes parameters shown in table 25.
Table 24
Table 25
In this embodiment, in step S102, after the STA MLD2 reads the broadcast message of the soft AP MLD1 on link1, it sends a probe request message to the soft AP MLD1 on link1, where the probe request message includes the information element Multi link element, and this Multi link element includes the parameters shown in table 26, for example. For other steps in this embodiment, reference may be made to the above embodiment, and no further description is given here.
Table 26
In yet another embodiment, multi link element in the probe response message in step S103 of the above embodiment further contains an indication of whether it is a primary link on the soft access device, for example Multi link element contained in the probe response message contains the parameters shown in table 27.
Table 27
Wherein, AP profile 1 and AP profile 2 contain parameters shown in Table 28.
Table 28
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Fig. 2 is a schematic structural diagram of an apparatus for discovery and connection to a soft access device according to an embodiment of the present application. As shown in fig. 2, the apparatus 200 includes a broadcast message receiving module 201, a probe request message transmitting module 202, a probe response message receiving module 203, a connection request message transmitting module 204, a connection response message receiving module 205, and a main link setting module 206, which are communicatively connected to each other,
a broadcast message receiving module 201, configured to receive a broadcast message on a first link, where the broadcast message includes a neighboring access point report information element and a multilink information element, and the multilink information element in the broadcast message includes an identifier of the first link;
a probe request message sending module 202, configured to send a probe request message on a first link, where the probe request message includes a multilink information element, and the multilink information element in the probe request message includes an identifier of the first link;
A probe response message receiving module 203, configured to receive a probe response message on a first link, where the probe response message includes a multilink information element, where the multilink information element in the probe response message includes information of an access point on the first link and information of an access point on a second link, where the information of the access point on the first link includes an identifier of the first link and capability information or/and operation information of the access point operating on the first link, and the information of the access point on the second link includes an identifier of the second link and capability information or/and operation information of the access point operating on the second link, where the access point operating on the first link and the access point operating on the second link belong to the same multilink device;
a connection request message sending module 204, configured to send a connection request message on a first link, where the connection request message includes a multi-link information element, and the multi-link information element in the connection request message includes information for requesting to establish a first link of a connection and information for requesting to establish a second link of the connection, where the information for requesting to establish the first link includes an identifier of the first link and capability information of a logical entity of the multi-link terminal device operating on the first link, and the information for requesting to establish the second link includes an identifier of the second link and capability information of the logical entity of the multi-link terminal device operating on the second link;
A connection response message receiving module 205, configured to receive a connection response message on a first link, where the connection response message includes a multi-link information element, and the multi-link information element in the connection response message includes information that agrees to establish a first link of a connection and information that agrees to establish a second link of the connection, where the information that agrees to establish the first link includes an identifier of the first link, an indication of whether the first link is a primary link on a soft access device, and capability information or/and operation information of an access point operating on the first link, and the information that agrees to establish the second link includes an identifier of the second link, an indication of whether the second link is a primary link on the soft access device, and capability information or/and operation information of the access point operating on the second link;
a main link setting module 206, configured to set a main link and a non-main link according to the connection response message.
Optionally, the apparatus 200 further comprises a data transmission module 207, as shown in fig. 3. The data sending module 207 is configured to perform the following steps:
if the main link and the non-main link are idle, transmitting data on the main link and the non-main link at the same time;
if the main link is idle, but the non-main link is not idle, data is only sent on the main link;
If the primary link is not idle, no data is sent.
In an alternative example, it will be understood by those skilled in the art that the apparatus 200 may be specifically configured as the STA MLD2 in the foregoing embodiment, and the apparatus 200 may be configured to perform each flow and/or step corresponding to the STA MLD2 in the foregoing method, which is not repeated herein.
It should be appreciated that the apparatus 200 herein is embodied in the form of functional modules. The term module herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. The above-described apparatus 200 has a function of implementing the corresponding steps in the above-described method; the above functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. In an embodiment of the present application, the apparatus 200 may also be a chip or a chip system, for example: system on chip (SoC). The application is not limited herein.
The embodiment of the application also provides a device for discovering and connecting to the soft access device, and fig. 4 is a schematic diagram of the device structure for discovering and connecting to the soft access device. As shown in fig. 4, the apparatus 400 includes a processor 401, a memory 402, and a communication interface 403, wherein the processor 401, the memory 402, and the communication interface 403 communicate with each other through a bus 404, and instructions executable by the processor 401 are stored in the memory 402, and are loaded and executed by the processor 401 to control the communication interface 403 to transmit signals and/or receive signals.
It should be understood that the apparatus 400 may be specifically configured as the STA MLD2 in the above-described embodiment, or the functions of the STA MLD2 in the above-described embodiment may be integrated in the apparatus 400, and the apparatus 400 may be configured to perform the respective steps and/or flows corresponding to the STA MLD2 in the above-described embodiment. Alternatively, the memory 402 may include read-only memory and random access memory, and provide instructions and data to the processor 401. A portion of memory 402 may also include non-volatile random access memory. For example, the memory 402 may also store information of device type. The processor 401 may be configured to execute instructions stored in the memory 401, and when the processor 401 executes the instructions, the processor 401 may execute the steps and/or processes corresponding to the STA MLD2 in the above-described method embodiment.
It is to be appreciated that in embodiments of the present application, the processor 401 may be a central processing unit (centralprocessing unit, CPU), which may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor executes instructions in the memory to perform the steps of the method described above in conjunction with its hardware. To avoid repetition, a detailed description is not provided herein.
The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.
It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus, device and module described above may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be other manners of dividing the modules or components into multiple modules or components when actually implemented, or multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (14)

1. A method of discovering and connecting to a soft access device for use with a multi-link terminal device, comprising:
receiving a broadcast message on a first link, wherein the broadcast message comprises an adjacent access point report information element and a multi-link information element, and the multi-link information element in the broadcast message comprises an identifier of the first link;
transmitting a detection request message on a first link, wherein the detection request message comprises a multi-link information element, and the multi-link information element in the detection request message comprises an identifier of the first link;
receiving a detection response message on a first link, wherein the detection response message comprises a multi-link information element, the multi-link information element in the detection response message comprises information of an access point on the first link and information of an access point on a second link, the information of the access point on the first link comprises identification of the first link and capability information or/and operation information of the access point operating on the first link, and the information of the access point on the second link comprises identification of the second link and capability information or/and operation information of the access point operating on the second link, and the access point operating on the first link and the access point operating on the second link belong to the same multi-link equipment;
Transmitting a connection request message on a first link, wherein the connection request message comprises a multi-link information element, the multi-link information element in the connection request message comprises information of a first link which requests to establish connection and information of a second link which requests to establish connection, the information of the first link which requests to establish connection comprises an identification of the first link and capability information of a logic entity of the multi-link terminal equipment operating on the first link, and the information of the second link which requests to establish connection comprises an identification of the second link and capability information of the logic entity of the multi-link terminal equipment operating on the second link;
receiving a connection response message on a first link, wherein the connection response message comprises a multi-link information element, the multi-link information element in the connection response message comprises information of a first link which agrees to establish connection and information of a second link which agrees to establish connection, the information of the first link which agrees to establish connection comprises an identification of the first link, an indication of whether the first link is a main link on soft access equipment and capability information or/and operation information of an access point operated on the first link, and the information of the second link which agrees to establish connection comprises an identification of the second link, an indication of whether the second link is a main link on the soft access equipment and capability information or/and operation information of the access point operated on the second link;
Setting a main link and a non-main link according to the connection response message;
the setting the main link and the non-main link according to the connection response message includes:
and setting a link which is indicated as a main link on the soft access equipment in the connection response message as a main link, and setting a link which is indicated as a non-main link on the soft access equipment in the connection response message as a non-main link.
2. The method of claim 1, wherein the neighbor access point report information element includes an identifier of the second link and indicates that the access point operating on the first link and the access point operating on the second link belong to the same multi-link device, and the multi-link information element in the probe request message further includes the identifier of the second link.
3. A method of discovering and connecting to soft access devices according to claim 2, wherein the neighbor access point report information element further comprises an indication of whether the second link is the primary link on the soft access device.
4. A method of discovering and connecting to a soft access device according to claim 1 or 2, characterized in that the multilink information element in the broadcast message also contains an indication of whether the first link is the primary link on the soft access device or whether it is the soft access device.
5. A method of discovering and connecting to soft access devices according to any of claims 1-3, characterized in that the information of the access point on the first link and the information of the access point on the second link each further comprise an indication of whether it is the primary link on the soft access device.
6. The method for discovering and connecting to soft access devices of claim 1, further comprising, after said setting up a primary link and a non-primary link according to said connection response message:
if the main link and the non-main link are idle, transmitting data on the main link and the non-main link at the same time;
if the main link is idle, but the non-main link is not idle, data is only sent on the main link;
if the primary link is not idle, no data is sent.
7. An apparatus for discovering and connecting to a soft access device for use with a multi-link terminal device, comprising:
a broadcast message receiving module, configured to receive a broadcast message on a first link, where the broadcast message includes a neighboring access point report information element and a multilink information element, and the multilink information element in the broadcast message includes an identifier of the first link;
A probe request message sending module, configured to send a probe request message on a first link, where the probe request message includes a multilink information element, and the multilink information element in the probe request message includes an identifier of the first link;
the detection response message receiving module is used for receiving a detection response message on a first link, wherein the detection response message comprises a multi-link information element, the multi-link information element in the detection response message comprises information of an access point on the first link and information of an access point on a second link, the information of the access point on the first link comprises identification of the first link and capability information or/and operation information of the access point operating on the first link, the information of the access point on the second link comprises identification of the second link and capability information or/and operation information of the access point operating on the second link, and the access point operating on the first link and the access point operating on the second link belong to the same multi-link equipment;
a connection request message sending module, configured to send a connection request message on a first link, where the connection request message includes a multi-link information element, and the multi-link information element in the connection request message includes information for requesting to establish a first link of a connection and information for requesting to establish a second link of the connection, where the information for requesting to establish the first link includes an identifier of the first link and capability information of a logical entity of the multi-link terminal device operating on the first link, and the information for requesting to establish the second link includes an identifier of the second link and capability information of the logical entity of the multi-link terminal device operating on the second link;
A connection response message receiving module, configured to receive a connection response message on a first link, where the connection response message includes a multi-link information element, and the multi-link information element in the connection response message includes information that agrees to establish a first link of a connection and information that agrees to establish a second link of the connection, where the information that agrees to establish the first link includes an identifier of the first link, an indication of whether the first link is a primary link on a soft access device, and capability information or/and operation information of an access point operating on the first link, and the information that agrees to establish the second link includes an identifier of the second link, an indication of whether the second link is a primary link on the soft access device, and capability information or/and operation information of the access point operating on the second link;
the main link setting module is used for setting a main link and a non-main link according to the connection response message;
the setting the main link and the non-main link according to the connection response message includes:
and setting a link which is indicated as a main link on the soft access equipment in the connection response message as a main link, and setting a link which is indicated as a non-main link on the soft access equipment in the connection response message as a non-main link.
8. The apparatus of claim 7 wherein the neighbor access point report information element includes an identification of the second link and indicates that the access point operating on the first link and the access point operating on the second link are affiliated with the same multi-link device, and the multi-link information element in the probe request message further includes the identification of the second link.
9. The apparatus for discovering and connecting to the soft access device of claim 8 wherein the neighbor access point report information element further comprises an indication of whether the second link is a primary link on the soft access device.
10. An apparatus for discovering and connecting to a soft access device according to claim 7 or 8, wherein the multilink information element in the broadcast message further comprises an indication of whether the first link is the primary link on the soft access device or an indication of whether the first link is the soft access device.
11. An apparatus for discovering and connecting to a soft access device according to any one of claims 7-9 wherein the information of the access point on the first link and the information of the access point on the second link each further comprise an indication of whether it is the primary link on the soft access device.
12. The apparatus for discovering and connecting to soft access devices of claim 7, further comprising a data transmission module for performing the steps of:
if the main link and the non-main link are idle, transmitting data on the main link and the non-main link at the same time;
if the main link is idle, but the non-main link is not idle, data is only sent on the main link;
if the primary link is not idle, no data is sent.
13. An apparatus for discovery and connection to a soft access device comprising a memory, a processor and a computer program stored on the memory, characterized in that the processor executes the computer program to carry out the steps of the method according to any one of claims 1-6.
14. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any of claims 1-6.
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