CN115442921A

CN115442921A - Method, device, system, equipment and storage medium for reconfiguring link

Info

Publication number: CN115442921A
Application number: CN202110615924.2A
Authority: CN
Inventors: 吴昊; 王鑫
Original assignee: Chengdu Jimi Technology Co Ltd
Current assignee: Chengdu Jimi Technology Co Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-12-06
Anticipated expiration: 2041-06-02
Also published as: CN115442921B

Abstract

The invention discloses a method, a device, a system, equipment and a storage medium for reconfiguring a link. The method comprises the following steps: the access point sends a first message to the terminal, wherein the first message indicates that a logic access point is newly established and contains information of the newly established logic access point; after receiving the first message, the terminal determines whether to request to establish a new link according to its own strategy, if so, the terminal sends a link reconfiguration request message to the access point, and the link reconfiguration request message contains information indicating whether two links can independently receive and transmit data at the same time; and the access point determines whether to agree to establish a new link or not after receiving the link reconfiguration request message, and sends a link reconfiguration response message to the terminal. Through the implementation of the invention, the terminal can select a link configuration mode more favorable for the terminal according to the configuration change of the accessed access point so as to improve the utilization rate of wireless resources, improve the data transmission rate and reduce the service delay.

Description

Method, device, system, equipment and storage medium for reconfiguring link

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, a system, a device, and a storage medium for reconfiguring a link.

Background

802.11be networks, also known as Extreme High Throughput (EHT) networks, are enhanced by a range of system features and a variety of mechanisms to achieve very High Throughput. As the use of Wireless Local Area Networks (WLANs) continues to grow, it becomes increasingly important to provide wireless data services in many environments, such as homes, businesses, and hot spots. In particular, video traffic will continue to be the dominant type of traffic in many WLAN deployments. With the advent of 4k and 8k video (uncompressed rates of 20 Gbps), the throughput requirements for these applications are constantly evolving. New high throughput, low latency applications such as virtual reality 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 latency requirements of these applications, users expect higher throughput, higher reliability, less latency and jitter, and higher power efficiency when supporting their applications over a WLAN. Users desire improved integration with Time Sensitive Networks (TSNs) to support applications on heterogeneous ethernet and wireless LANs. 802.11be networks aim to ensure the competitiveness of WLANs by further increasing overall throughput and reducing latency, while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz,5GHz and 6GHz bands.

Disclosure of Invention

The access point with the capability of operating on multiple links simultaneously can flexibly set multiple links on different frequency bands to set logical access points, for example, after initial startup, the logical access points are set only on the 2.4Ghz and 5Ghz frequency bands, and then, the number of devices accessed later becomes larger, and a new logical access point is added to operate on the 6Ghz frequency band. And if the access devices are reduced along with the change of time, canceling the logic access point on the 6GHz frequency band, for example, when the interference on 2.4GHz is found to be large in the operation process, canceling the logic access point on the 2.4GHz frequency band, and adding the logic access point operated on the 6GHz frequency band. Embodiments of the present invention provide a method, an apparatus, a system, a device, and a storage medium for reconfiguring a link, where when a multi-link configuration of an access point changes, a terminal may perform link reconfiguration actively or passively.

In a first aspect, an embodiment of the present invention provides a method for reconfiguring a link, where the method is applied to an access point, and the method includes:

sending a first message to a terminal, wherein the first message indicates that a logic access point is newly established and contains information of the newly established logic access point;

receiving a link reconfiguration request message sent by the terminal, and determining whether to agree to establish a new link, wherein the link reconfiguration request message indicates a newly added link and includes information of the newly added link and information of a logic terminal operating on the newly added link, link pair information incapable of independently receiving and sending data at the same time, or/and link pair information capable of independently receiving and sending data at the same time, or/and minimum frequency interval between links capable of independently receiving and sending data at the same time, and a link pair incapable of independently receiving and sending data at the same time indicates that when data is sent on one link, the other link cannot simultaneously receive data; the link pair capable of independently receiving and transmitting data at the same time indicates that the data transmitted or received by the two links are not influenced mutually; the minimum frequency interval between the links capable of independently receiving and transmitting data at the same time indicates that when the absolute value of the difference between the central frequency bands of the two links is larger than the minimum frequency interval, the two links transmit or receive data without mutual influence, otherwise, when one link of the two links transmits data, the other link cannot simultaneously receive the data;

if agreeing to establish a new link, setting a state parameter to indicate success, and storing the link pair information incapable of independently receiving and transmitting data at the same time, or/and the link pair information capable of independently receiving and transmitting data at the same time, or/and the minimum frequency interval between links capable of independently receiving and transmitting data at the same time in the information associated with the terminal; otherwise, setting the state parameter indication to be unsuccessful;

and sending a link reconfiguration response message to the terminal, wherein the link reconfiguration response message contains the state parameters.

In one possible implementation manner, the method further includes:

when data needs to be sent to a terminal on a first link, link pair information which cannot independently receive and send data at the same time in the terminal-related information is checked, or/and link pair information which can independently receive and send data at the same time, or/and minimum frequency interval between links which can independently receive and send data at the same time;

if a second link which can not independently receive and transmit data simultaneously with the first link exists and data is being received on the second link, caching the data needing to be sent to the terminal, and trying to send the data again after the data on the second link is received; otherwise, the data is directly attempted to be transmitted.

In a possible implementation manner, the first message is a broadcast message or a probe response message or a reconfiguration notification message in response to a probe request message sent by the terminal.

In a possible implementation manner, the information of the newly-built logical access point included in the first message includes information of a link on which the newly-built logical access point operates and capability information or/and operation information of the newly-built logical access point.

In a possible implementation manner, when the information associated with the terminal includes link pair information that cannot independently receive and transmit data at the same time, if a frequency band or an identifier corresponding to a third link is included in the link pair that cannot independently receive and transmit data at the same time, the third link is determined as a second link that cannot independently receive and transmit data at the same time as the first link.

In a possible implementation manner, when the information associated with the terminal includes link pair information capable of independently transceiving data at the same time, if a frequency band or an identifier corresponding to a third link is not included in the link pair capable of independently transceiving data at the same time, the third link is determined as a second link that is not capable of independently transceiving data at the same time as the first link.

In a possible implementation manner, when the information associated with the terminal includes a minimum frequency interval between links capable of independently transceiving data at the same time, an absolute value of a difference between center frequency bands of a third link and a first link operated by the access point is calculated, and if the absolute value is less than or equal to the minimum frequency interval, the third link is determined as a second link that is incapable of independently transceiving data at the same time as the first link.

In one possible implementation, the deciding whether to agree to establish the new link includes:

checking whether a logic access point corresponding to the information of the newly added link is set locally, if so, checking whether the logic access point is connected with the terminal, and if not, agreeing to establish a new link; otherwise, the new link is not agreed to be established.

In a possible implementation manner, before the sending the first message to the terminal, the method further includes:

a logical access point operating on the new link is set.

In a possible implementation manner, before sending the first message to the terminal, the method further includes:

receiving a connection request message sent by a terminal on a fourth link, wherein the connection request message comprises a first multilink information element, and the first multilink information element comprises information of a link requesting to establish connection and capability information or/and operation information of a logic terminal operated on the link requesting to establish connection;

and sending a connection response message to the terminal on the fourth link, wherein the connection response message indicates that connection establishment is allowed and comprises a second multilink information element, and the second multilink information element comprises information of the link which allows connection establishment and capability information or/and operation information of a logic access point operated on the link which allows connection establishment.

In a second aspect, an embodiment of the present invention provides a method for reconfiguring a link, which is applied to a terminal, and includes:

receiving a first message sent by an access point, wherein the first message indicates that a logic access point is newly established and contains information of the newly established logic access point;

sending a link reconfiguration request message to the access point, wherein the link reconfiguration request message indicates a newly added link and includes information of the newly added link and information of a logic terminal operated on the newly added link, link pair information incapable of independently receiving and sending data at the same time, or/and link pair information capable of independently receiving and sending data at the same time, or/and minimum frequency interval between links capable of independently receiving and sending data at the same time, and when a link pair incapable of independently receiving and sending data at the same time indicates that data is sent on one link, the other link cannot receive data at the same time; the link pair capable of independently receiving and transmitting data at the same time indicates that the data transmitted or received by the two links are not influenced mutually; the minimum frequency interval between the links capable of independently receiving and transmitting data at the same time indicates that when the absolute value of the difference between the central frequency bands of the two links is larger than the minimum frequency interval, the two links transmit or receive data without mutual influence, otherwise, when one link of the two links transmits data, the other link cannot simultaneously receive the data;

and receiving a link reconfiguration response message sent by the access point, wherein the link reconfiguration response message contains a state parameter, and the state parameter is used for indicating whether the link reconfiguration response message is successful or not.

In a possible implementation manner, the first message is a broadcast message or a probe response message or a reconfiguration notification message of an access point responding to a probe request message sent by the terminal.

In a possible implementation manner, before the receiving the first message sent by the access point, the method further includes:

sending a connection request message to the access point on a fourth link, wherein the connection request message comprises a first multilink information element, and the first multilink information element comprises information of a link requesting to establish connection and capability information or/and operation information of a logic terminal operated on the link requesting to establish connection;

and receiving a connection response message sent by the access point on the fourth link, wherein the connection response message indicates that connection establishment is permitted and comprises a second multilink information element, and the second multilink information element comprises information of a link which permits connection establishment and capability information or/and operation information of a logic access point which operates on the link which permits connection establishment.

In a third aspect, an embodiment of the present invention provides an apparatus for reconfiguring a link, where the apparatus is applied to an access point, and the apparatus includes:

the first communication module is used for sending a first message to the terminal, wherein the first message indicates that a logic access point is newly established and includes information of the newly established logic access point;

a second communication module, configured to receive a link reconfiguration request message sent by the terminal, and determine whether to agree to establish a new link, where the link reconfiguration request message indicates a newly added link and includes information of the newly added link and information of a logic terminal operating on the newly added link, and link pair information incapable of independently receiving and sending data at the same time, or/and link pair information capable of independently receiving and sending data at the same time, or/and a minimum frequency interval between links capable of independently receiving and sending data at the same time, where a link pair incapable of independently receiving and sending data at the same time indicates that when data is sent on one link, the other link cannot receive data at the same time; the link pair capable of independently receiving and transmitting data at the same time indicates that the data transmitted or received by the two links are not influenced mutually; the minimum frequency interval between the links capable of independently receiving and transmitting data at the same time indicates that when the absolute value of the difference between the central frequency bands of the two links is larger than the minimum frequency interval, the two links transmit or receive data without mutual influence, otherwise, when one link of the two links transmits data, the other link cannot simultaneously receive the data;

the first execution module is used for setting state parameter indication to be successful if the establishment of a new link is agreed, and storing the link pair information which can not independently receive and transmit data at the same time, or/and the link pair information which can independently receive and transmit data at the same time, or/and the minimum frequency interval between the links which can independently receive and transmit data at the same time in the information related to the terminal; otherwise, setting the state parameter indication to be unsuccessful;

and a third communication module, configured to send a link reconfiguration response message to the terminal, where the link reconfiguration response message includes the state parameter.

In one possible implementation manner, the method further includes:

the second execution module is used for checking link pair information which cannot independently receive and transmit data at the same time in the information associated with the terminal or/and link pair information which can independently receive and transmit data at the same time or/and minimum frequency interval between links which can independently receive and transmit data at the same time when data needs to be sent to the terminal on the first link;

In a fourth aspect, an embodiment of the present invention provides an apparatus for reconfiguring a link, where the apparatus is applied to a terminal, and the apparatus includes:

the first communication module is used for receiving a first message sent by an access point, wherein the first message indicates that a logic access point is newly established and contains information of the newly established logic access point;

a second communication module, configured to send a link reconfiguration request message to the access point, where the link reconfiguration request message indicates a newly added link and includes information of the newly added link and information of a logic terminal operating on the newly added link, and link pair information that is incapable of independently receiving and sending data at the same time, or/and link pair information that is capable of independently receiving and sending data at the same time, or/and a minimum frequency interval between links that are capable of independently receiving and sending data at the same time, where a link pair that is incapable of independently receiving and sending data at the same time indicates that when data is sent on one link, the other link is incapable of simultaneously receiving data; the link pair capable of independently receiving and transmitting data at the same time indicates that the data transmitted or received by the two links are not influenced mutually; the minimum frequency interval between the links capable of independently receiving and transmitting data at the same time indicates that when the absolute value of the difference between the central frequency bands of the two links is larger than the minimum frequency interval, the two links transmit or receive data without mutual influence, otherwise, when one link of the two links transmits data, the other link cannot simultaneously receive the data;

and a third communication module, configured to receive a link reconfiguration response message sent by the access point, where the link reconfiguration response message includes a status parameter, and the status parameter is used to indicate whether the link reconfiguration is successful.

In a fifth aspect, an embodiment of the present invention provides a system for reconfiguring a link, where the system includes a terminal and an access point, where the access point is configured to execute the method for reconfiguring a link according to the first aspect, and the terminal is configured to execute the method for reconfiguring a link according to the second aspect.

In a sixth aspect, an embodiment of the present invention provides an apparatus for reconfiguring a link, where the apparatus includes a processor and a memory, where the memory stores at least one instruction, at least one piece of program code, a set of codes, or a set of instructions, and the at least one instruction, at least one piece of program code, a set of codes, or a set of instructions is loaded and executed by the processor to implement the method for reconfiguring a link according to the first aspect.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where at least one instruction, at least one section of program code, a set of codes, or a set of instructions is stored in the storage medium, and the at least one instruction, the at least one section of program code, the set of codes, or the set of instructions is loaded and executed by a processor to implement the method for reconfiguring a link according to the first aspect.

It should be noted that, the apparatus in the third aspect is configured to execute the method in the first aspect, the apparatus in the fourth aspect is configured to execute the method in the second aspect, and the device in the sixth aspect and the storage medium in the seventh aspect are configured to execute the method in the first aspect or the second aspect, so that the same beneficial effects as those of the method in the first aspect or the second aspect can be achieved, and the embodiments of the present invention are not described again.

Through the implementation of the invention, the terminal can select a link configuration mode more favorable for the terminal according to the configuration change of the accessed access point so as to improve the utilization rate of wireless resources, improve the data transmission rate and reduce the service delay.

Drawings

The present application will now be described by way of example only and with reference to the accompanying drawings in which:

fig. 1 is a flowchart of a method for reconfiguring a link according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention. Moreover, while the present disclosure has been described in terms of one or more exemplary embodiments, it is to be understood that each aspect of the disclosure can be implemented as a separate entity, whether or not such embodiment is described in connection with its specific embodiments. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

In the embodiments of the present invention, words such as "exemplary", "for example", etc. are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another, and may or may not be identical in meaning. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The term "and/or" is meant to encompass any and all possible combinations of one or more of the associated listed items. The character "/" generally indicates that the preceding and following associated objects are in an "or" relationship.

It should be noted that the device having the capability of operating on multiple links simultaneously includes multiple logical entities, each logical entity performs data transmission through one link, each logical entity includes an independent data transceiver module, and a device without the capability of operating on multiple links simultaneously has only one logical entity. In the embodiment of the invention, the logic terminal is a logic entity in the terminal with the capability of operating on a plurality of links simultaneously, and the logic access point is a logic entity in the access point with the capability of operating on a plurality of links simultaneously.

Fig. 1 is a flowchart of a method for reconfiguring a link according to an embodiment of the present invention. As shown in fig. 1, the method for reconfiguring the link includes the following steps:

s101, an access point sends a first message to a terminal, wherein the first message indicates that a logic access point is newly established and contains information of the newly established logic access point.

In some embodiments, the access point may include information of the newly-established logical access point in a broadcast message (e.g., beacon message) or a probe response message (e.g., probe response message) in response to a probe request message (e.g., probe request message) sent by the terminal, or may send a dedicated message to a peer logical terminal in the terminal through a logical access point to which the access point belongs, where the dedicated message includes the information of the newly-established logical access point to notify the terminal of newly-establishing the logical access point. Illustratively, the information of the newly created logical access point included in the message includes information (such as link identifier, etc.) of a link operated by the newly created logical access point and capability information or/and operation information of the newly created logical access point.

S102, after receiving the first message, the terminal learns that the access point newly establishes the logic access point, and determines whether to request to establish a new link according to a policy of the terminal, and the terminal is connected to the newly established logic access point.

Specifically, the terminal learns that a link is newly added to the access point through a broadcast message or a probe response message or a proprietary message, and determines whether to request to establish a new link according to a policy of the terminal, for example, whether a service of the terminal needs a higher transmission rate or a lower transmission delay, and for example, whether the terminal has an idle unused logic terminal or the like, and if the determination is negative, ignores the information; if the determination is yes, the process proceeds to step S103.

And S103, the terminal sends a link reconfiguration request message to the access point, wherein the link reconfiguration request message indicates the newly added link and comprises information of the newly added link (such as link identification of the newly added link) and information of a logic terminal operated on the newly added link, link pair information incapable of independently receiving and sending data at the same time, or/and link pair information capable of independently receiving and sending data at the same time, or/and minimum frequency interval between links capable of independently receiving and sending data at the same time. Wherein, the link pair which can not receive and transmit data independently at the same time indicates that when data is transmitted on one link, the other link can not receive data at the same time; the link pair capable of independently receiving and transmitting data at the same time indicates that the data transmitted or received by the two links are not influenced mutually; the minimum frequency interval between the links capable of independently receiving and transmitting data at the same time means that when the absolute value of the difference between the center frequency bands of the two links is larger than the minimum frequency interval, the two links do not influence each other in transmitting or receiving data, otherwise, when one of the two links transmits data, the other link cannot receive data at the same time.

And S104, after receiving the link reconfiguration request message, the access point determines whether to agree to establish a new link, and sends a link reconfiguration response message to the terminal, wherein the link reconfiguration response message comprises a state parameter, and the state parameter is used for indicating whether the link reconfiguration request message is successful or not.

Specifically, if the access point agrees to establish a new link, the access point sets a state parameter indicating success, and stores the link pair information incapable of independently transceiving data at the same time, or/and the link pair information capable of independently transceiving data at the same time, or/and the minimum frequency interval between links capable of independently transceiving data at the same time in the information associated with the terminal; otherwise, the set status parameter indicates unsuccessful. And then sending a link reconfiguration response message to the terminal, wherein the link reconfiguration response message contains the state parameters.

Illustratively, the deciding whether to agree to establish the new link specifically includes: checking whether a logic access point corresponding to the information of the reconfiguration link is set locally, if so, checking whether the logic access point is connected with the terminal, and if not, agreeing to establish a new link; otherwise, the new link is not agreed to be established. The invention is not limited thereto.

In some embodiments, after step S104, when the access point needs to transmit data to the terminal on the first link, the access point checks link pair information that cannot independently transmit and receive data at the same time, and/or link pair information that can independently transmit and receive data at the same time, and/or minimum frequency interval between links that can independently transmit and receive data at the same time, in the information associated with the terminal. If a second link which can not independently receive and transmit data simultaneously with the first link exists and data is being received on the second link, caching the data needing to be sent to the terminal, and trying to send the data again after the data on the second link is received; otherwise, the data is directly attempted to be transmitted.

For a better understanding of the present invention, the present invention is described in detail below with reference to a specific embodiment. In the specific embodiment, the terminal STA MLD having the capability of operating on multiple links simultaneously has three logical terminals STA1, STA2 and STA3, the access point AP MLD having the capability of operating on multiple links simultaneously has three logical access points AP1, AP2 and AP3, after the power-on operation, the AP1 is set to operate in the 2.4GHz band, the Link identifier is set to Link 1, the AP2 is set to operate in the 5GHz band, the Link identifier is set to Link2, and the AP3 is not operated.

S1001, a terminal STA MLD and an access point AP MLD are connected, wherein STA1 and AP1 are connected, and a Link mark between the STA1 and the AP1 is Link 1; STA2 is connected to AP2, and the Link between them is identified as Link2. Illustratively, the manner of establishing the connection includes:

s1101, STA1 sends a connection request message (i.e., an association request message) to AP1, where the message includes a Multi Link element information element, where the Multi Link element information element includes a Link identification Link ID and logical terminal information STA info, and an example is shown in table 1. The Link identification Link ID may also be other information related to the Link.

TABLE 1

The information contained in table 1 is used to indicate to the access point that a request to establish multiple link connections is made.

S1102. After receiving the association request message, if the connection request of STA1 is agreed, AP1 sends a connection response message (i.e., association response message) to STA1, where the message indicates agreement to establish a connection and includes a Multi Link element information element, where the Multi Link element information element includes a Link identification Link ID and logical access point information AP info, as shown in table 2. The Link identification Link ID may also be other information related to the Link.

TABLE 2

Link ID	AP info
		Link 1	Capability information or/and operation information of AP1
Link 2	Capability of AP2Force information and/or operating information

If the connection request of STA1 is not approved, an association response message is sent to STA1, and the message indicates that the connection establishment is not approved. The subsequent scheme of the embodiment only considers the scene agreeing to establish the connection.

And S1103. After the STA1 receives the association response message, if the connection establishment is agreed by the indication in the message, the connection establishment is indicated to be established between the terminal STA MLD and the access point AP MLD, the STA MLD stores the received link information and the information of the logical access point, and data transmission is carried out according to the information of the logical access point.

And S1002. When detecting that the number of the terminals connected to the access point is large or the service data volume of the terminals is large after the AP MLD operates for a period of time, determining to start the AP3 and operating the AP on a 6GHz frequency band.

And S1003. The AP MLD includes the information of the AP3 in the beacon message or the probe response message sent by the AP1 and the AP2, and the example is shown in the table 3.

TABLE 3

Link ID	AP info
		Link 3	Capability information or/and operation information of AP3

Or,

the AP MLD sends a dedicated message (such as a reconfiguration notification message) to the STA1 through the AP1 to which the AP MLD belongs, or sends a dedicated message (such as a reconfiguration notification message) to the STA2 through the AP2 to which the AP MLD belongs, where the message includes the same information as above, so as to notify the STA MLD that a logical access point is newly established, that is, a link is newly added.

S1004. After the STA MLD learns that a link is added to the AP MLD through beacon message or probe response message or proprietary message, whether to request to establish a new link is determined according to own strategy, for example, if own service needs higher transmission rate or lower transmission delay, whether own service has idle unused logic terminal or not is determined, and if not, the information is ignored;

if it is determined that the present embodiment sets that the STA MLD uses the logical terminal STA3 to establish a connection on a new link, the STA1 or STA2 sends a link reconfiguration request message to the AP1 or AP2 corresponding to the AP MLD, where the link reconfiguration request message includes a parameter, for example, table 4.

TABLE 4

Wherein, STR pair indicates that data sent or received by two links do not influence each other;

NSTR pair indicates that while one link is transmitting data, the other link cannot receive data at the same time;

the Frequency diff indicates that when the absolute value of the difference between the central Frequency bands of the two links is larger than the Frequency diff value, the two links send or receive data without mutual influence, otherwise, when one of the two links sends data, the other link cannot receive data at the same time.

The NSTR pair, STR pair, and Frequency diff in the parameters listed in table 4 may include one or both of the link reconfiguration request messages. The parameters Delete request and Add request are used to indicate whether to Add a link, for example, when Delete request is set to 0 and Add request is set to 1, the new link is indicated. In other embodiments, the New Link may be indicated in other manners, such as not including the Delete request and the Add request, and setting the New Link ID. The present invention does not limit the way of indicating the newly added link in the link reconfiguration request message. The setting regarding NSTR pair and STR pair is shown in table 5 or table 6, for example, according to the assumption of the present embodiment.

TABLE 5

TABLE 6

Note that the reasons for the formation of NSTR pair and STR pair are: the 2.4GHz and 5GHz operating frequency bands are far apart, the mutual interference caused by the two operating frequency bands is relatively small, therefore, data can be independently received and transmitted on the two frequency bands, the transmission of data cannot be influenced mutually, the relationship reason of the 2.4GHz and the 6GHz is the same, therefore, the two operating frequency bands can be used as STR pair, the 5GHz and the 6GHz operating frequency bands are far apart, when one link sends data, the interference on the other link is large, and the data receiving failure is caused, therefore, when the two links run simultaneously, when one link sends data and receives data and needs to be coordinated with the other link, namely when one link is required to send data, the other link cannot receive data, therefore, the two links can only be used as NSTR pair.

S1005. After receiving the request message of Link reconfiguration, if the Delete request value in the message is 0 and the add request value is 1, checking whether a local logic access point corresponding to the Link ID value is set, if yes, then checking whether the logic access point has already established connection with the STA MLD, if not, setting the parameter status code as success, indicating that the establishment of a new Link is agreed, and storing the parameters NSTR pair or/and STR pair or/and Frequency diff in the information associated with the STA MLD; otherwise, the status code is set to failed or other value indicating unsuccessful.

And S1006, the AP MLD sends a link reconfiguration response message to the STA MLD, wherein the message comprises a parameter status code.

And S1007.AP MLD needs to send data to STA MLD through a certain logical access point on a corresponding Link, and when Link2 is assumed to send data to STA MLD, the NSTR pair or/and STR pair or/and Frequency diff values in STA MLD association information are checked.

1) If a Link which can not independently receive and send data with the Link exists, if the Link is assumed to be Link 3, checking whether the Link 3 is receiving data sent by the STA MLD, if so, buffering the data needing to be sent to the STA MLD, according to the value of the parameter duration in the data packet on the Link 3, using the value of the duration to indicate the time length of data sending, and after the data receiving is finished, trying to send the data again.

2) If there is no link that can not transmit and receive data independently at the same time with the link, or there is a link that can not transmit and receive data independently at the same time with the link but no data is being transmitted on the link, then the data is attempted to be transmitted to the STA MLD directly.

Specifically, when the STA MLD-associated information includes NSTR pair, according to the value of NSTR pair, if a frequency band or identifier corresponding to the current Link2 and a frequency band or identifier corresponding to another Link (for example, link 3) are included, the current Link2 and the other Link 3 cannot independently receive and transmit data at the same time; if the frequency band or identifier corresponding to the current Link2 and the frequency band or identifier corresponding to another Link (e.g., link 1) are not included, the current Link2 and the other Link 1 can independently transmit and receive data at the same time.

When the STA MLD-associated information includes the STR pair, according to the value of the STR pair, if the frequency band or identifier corresponding to the current Link2 and the frequency band or identifier corresponding to another Link (e.g., link 1) are included, the current Link2 and the other Link 1 can independently receive and transmit data at the same time; if the frequency band or identifier corresponding to the current Link2 and the frequency band or identifier corresponding to another Link (for example, link 3) are not included in the Link, the current Link2 and the other Link 3 cannot independently transmit and receive data at the same time.

When the information related to the STA MLD comprises a Frequency diff, calculating the absolute value of the difference between the central Frequency bands of other links (such as Link 1 and Link 3) operated by the AP MLD and Link2, and if the absolute value is less than or equal to the value of the Frequency diff, enabling the other links (such as Link 3) and Link2 not to independently receive and transmit data at the same time; if the absolute value is larger than the value of the Frequency diff, the other links (such as Link 1) and Link2 can independently receive and transmit data at the same time.

In the embodiment of the present invention, based on the same inventive concept as the above-mentioned method for reconfiguring a link, an apparatus for reconfiguring a link is further provided in the embodiment of the present invention, and is applied to an access point, where the apparatus includes:

Optionally, the apparatus further comprises:

the second execution module is used for checking link pair information which cannot independently receive and transmit data at the same time in the terminal-related information, or/and link pair information which can independently receive and transmit data at the same time, or/and minimum frequency interval between links which can independently receive and transmit data at the same time when data needs to be transmitted to the terminal on the first link;

The embodiment of the present invention further provides another apparatus for reconfiguring a link, which is applied to a terminal, and includes:

a second communication module, configured to send a link reconfiguration request message to the access point, where the link reconfiguration request message indicates a newly added link and includes information of the newly added link and information of a logic terminal operating on the newly added link, and link pair information incapable of independently receiving and sending data at the same time, or/and link pair information capable of independently receiving and sending data at the same time, or/and a minimum frequency interval between links capable of independently receiving and sending data at the same time, where a link pair incapable of independently receiving and sending data at the same time indicates that when data is sent on one link, another link cannot receive data at the same time; the link pair capable of independently receiving and transmitting data at the same time indicates that the data transmitted or received by the two links are not influenced mutually; the minimum frequency interval between the links capable of independently receiving and transmitting data at the same time indicates that when the absolute value of the difference between the central frequency bands of the two links is larger than the minimum frequency interval, the two links transmit or receive data without mutual influence, otherwise, when one link of the two links transmits data, the other link cannot simultaneously receive the data;

In this embodiment of the present invention, based on the same inventive concept as the above-mentioned method for reconfiguring a link, an embodiment of the present invention further provides a device for reconfiguring a link, where the device includes a processor and a memory, where the memory stores at least one instruction, at least one section of program code, a set of codes, or a set of instructions, and the at least one instruction, at least one section of program code, a set of codes, or a set of instructions is loaded and executed by the processor, so as to implement the method for reconfiguring a link related to the above-mentioned embodiment.

Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where at least one instruction, at least one section of program code, a set of codes, or a set of instructions is stored in the storage medium, and the at least one instruction, the at least one section of program code, the set of codes, or the set of instructions is loaded and executed by a processor to implement the method for reconfiguring a link according to the foregoing embodiment.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements 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 technical 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 invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented.

The modules described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more modules are integrated into 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 such understanding, the technical solution of the present invention or a part thereof, which essentially contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device or a terminal, etc.) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: u disk, removable hard disk, ROM, RAM) magnetic or optical disk, or the like.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method for reconfiguring a link, applied to an access point, comprising:

2. The method of reconfiguring a link, according to claim 1, further comprising:

when data needs to be sent to a terminal on a first link, link pair information which cannot independently receive and send data at the same time in the information associated with the terminal is checked, or/and link pair information which can independently receive and send data at the same time, or/and minimum frequency interval between links which can independently receive and send data at the same time;

3. The method according to claim 1, wherein the first message is a broadcast message or a probe response message or a reconfiguration notification message in response to a probe request message sent by the terminal.

4. The method according to claim 1, wherein the information of the newly-established logical access point included in the first message includes information of a link on which the newly-established logical access point operates and capability information or/and operation information of the newly-established logical access point.

5. The method according to claim 2, wherein when the information associated with the terminal includes link pair information that cannot independently receive and transmit data at the same time, if a frequency band or identifier corresponding to a third link is included in the link pair that cannot independently receive and transmit data at the same time, the third link is determined to be a second link that cannot independently receive and transmit data at the same time as the first link.

6. The method according to claim 2, wherein when the information associated with the terminal includes link pair information capable of independently transceiving data at the same time, if a frequency band or identifier corresponding to a third link is not included in the link pair capable of independently transceiving data at the same time, the third link is determined to be a second link that is not capable of independently transceiving data at the same time as the first link.

7. The method as claimed in claim 2, wherein when the information associated with the terminal includes a minimum frequency interval between links capable of independently transceiving data at the same time, an absolute value of a difference between center frequency bands of a third link and a first link operated by the access point is calculated, and if the absolute value is smaller than or equal to the minimum frequency interval, the third link is determined as a second link incapable of independently transceiving data at the same time as the first link.

8. The method of claim 1, wherein the determining whether to approve establishment of a new link comprises:

9. The method of claim 1, further comprising, before the sending the first message to the terminal:

a logical access point operating on the new link is set.

10. The method of claim 1, further comprising, before the sending the first message to the terminal:

11. A method for reconfiguring a link is applied to a terminal, and the method comprises the following steps:

and receiving a link reconfiguration response message sent by the access point, wherein the link reconfiguration response message contains a state parameter, and the state parameter is used for indicating whether the link reconfiguration is successful or not.

12. The method according to claim 11, wherein the first message is a broadcast message or a probe response message or a reconfiguration notification message sent by an access point in response to a probe request message sent by the terminal.

13. The method according to claim 11, wherein the information about the newly-established logical access point included in the first message includes information about a link over which the newly-established logical access point operates and capability information or/and operation information about the newly-established logical access point.

14. The method of claim 11, further comprising, before the receiving the first message sent by the access point:

and receiving a connection response message sent by the access point on the fourth link, wherein the connection response message indicates that connection establishment is agreed, and the connection response message comprises a second multilink information element, and the second multilink information element comprises information of a link agreed to establish connection and capability information or/and operation information of a logic access point operated on the link agreed to establish connection.

15. An apparatus for reconfiguring a link, applied to an access point, comprising:

a second communication module, configured to receive a link reconfiguration request message sent by the terminal, and determine whether to agree to establish a new link, where the link reconfiguration request message indicates a newly added link and includes information of the newly added link and information of a logic terminal operating on the newly added link, and link pair information incapable of independently receiving and sending data at the same time, or/and link pair information capable of independently receiving and sending data at the same time, or/and a minimum frequency interval between links capable of independently receiving and sending data at the same time, where a link pair incapable of independently receiving and sending data at the same time indicates that when data is sent on one link, the other link cannot receive data at the same time; the link pair capable of independently receiving and transmitting data at the same time indicates that the data transmitted or received by the two links are not influenced mutually; the minimum frequency interval between the links capable of independently receiving and transmitting data at the same time indicates that when the absolute value of the difference between the central frequency bands of the two links is larger than the minimum frequency interval, the two links do not influence each other in data transmission or data reception, otherwise, when one of the two links transmits data, the other link cannot receive data at the same time;

the first execution module is used for setting state parameter indication to be successful if the establishment of a new link is agreed, and storing the link pair information which can not independently receive and transmit data at the same time, or/and the link pair information which can independently receive and transmit data at the same time, or/and the minimum frequency interval between links which can independently receive and transmit data at the same time in the information associated with the terminal; otherwise, setting the state parameter indication to be unsuccessful;

16. The apparatus for reconfiguring a link according to claim 15, further comprising:

17. An apparatus for reconfiguring a link, applied to a terminal, comprising:

the first communication module is used for receiving a first message sent by an access point, wherein the first message indicates that a logic access point is newly established and includes information of the newly established logic access point;

a third communication module, configured to receive a link reconfiguration response message sent by the access point, where the link reconfiguration response message includes a status parameter, and the status parameter is used to indicate whether the link reconfiguration is successful.

18. A system for reconfiguring a link, characterized in that it comprises a terminal and an access point, said access point being configured to perform the method for reconfiguring a link according to any one of claims 1 to 10, and said terminal being configured to perform the method for reconfiguring a link according to any one of claims 11 to 14.

19. An apparatus for reconfiguring a link, the apparatus comprising a processor and a memory, the memory having stored therein at least one instruction, at least one piece of program code, a set of codes, or a set of instructions, the at least one instruction, at least one piece of program code, a set of codes, or a set of instructions, which is loaded and executed by the processor to implement the method for reconfiguring a link according to any of claims 1-14.

20. A computer readable storage medium having stored therein at least one instruction, at least one piece of program code, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the method of reconfiguring a link according to any of claims 1-14.