CN115150037A

CN115150037A - Method, device, system and storage medium for establishing multi-link block acknowledgement protocol

Info

Publication number: CN115150037A
Application number: CN202110338282.6A
Authority: CN
Inventors: 吴昊; 王鑫
Original assignee: Chengdu Jimi Technology Co Ltd
Current assignee: Chengdu Jimi Technology Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-10-04
Anticipated expiration: 2041-03-30
Also published as: CN115150037B

Abstract

The invention discloses a method, a device, a system and a storage medium for establishing a multi-link block acknowledgement protocol. The method comprises the following steps: sending an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request element and a parameter indicating establishment of a multi-link block acknowledgement protocol; receiving an ADDBA response frame, wherein the ADDBA response frame includes parameters SA, DA and ADDBA response element, the ADDBA response element represents a block acknowledgement response parameter, and the ADDBA response element includes a parameter Status code. The invention provides a flexible service data transmission mode, solves the problems of data loss and data repetition in a multilink operation scene, and improves the network and data transmission efficiency.

Description

Method, device, system and storage medium for establishing multi-link block acknowledgement protocol

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, a system, and a storage medium for establishing a multi-link block acknowledgement protocol.

Background

In the 802.11 system, an access device (AP STA) and a terminal device (Non-AP STA) are both internally deployed with a MAC layer and a PHY layer, wherein the main functions of the MAC layer include channel management, connection management, quality of service management, power control, time synchronization, and the like, and the main functions of the PHY layer include modulation, coding, transmission, and the like.

Both the MAC layer and the PHY layer conceptually include management entities referred to as a medium access layer management entity MLME (MAC sublayer management entity) and a physical layer management entity PLME (PHY sublayer management entity), respectively. These entities provide low-level management service interfaces through which low-level management functions can be invoked.

In order to provide correct MAC operation, each device (including Non-AP STA and AP STA) has a higher management entity, such as SME (device management entity), which represents a higher management entity above the MAC layer, is a layer-independent entity, and is located in a separate management plane.

The function of SME: typically, this entity is responsible for functions such as collecting layer-related state from various layer management entities (MLME and PLME), which similarly also sets layer-specific parameter values. SMEs typically perform such functions on behalf of a general system management entity. The layers interact with each other through defined primitives.

802.11be networks, also known as Extreme High Throughput (EHT) networks, enhance functionality through 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 rate 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

In an 802.11 network, in order to ensure the reliability of the network, each time a sender sends a data packet, a receiver needs to return an ACK message to the sender to tell the sender whether the data packet is correctly received. With the increase of network data rate, after a sender is allowed to send a plurality of data packets, a receiver feeds back the plurality of data packets, and a message fed back for the plurality of data packets is called a Block ACK, that is, a Block acknowledgement scheme. To use the block acknowledgement method between two terminals, a block acknowledgement protocol must be established between the two parties.

In a multilink operation scenario, there are independent links between a multilink terminal device and a multilink access device, which is implemented according to the prior art, each link needs to perform an independent block acknowledgement protocol establishment process, and actually, for a multilink terminal, in addition to supporting different services that can be performed independently on different links, the multilink terminal can also support the same service that can be performed on different links, that is, data packets of the same TID (service identifier) can be supported to perform data transmission on multiple links, then one physical entity for receiving and sending, that is, only one main body for distributing data packets, and feeding back ACKs on two links respectively, the data packets need to be strictly divided and then distributed to each link for sending. In view of this, embodiments of the present invention provide a method, an apparatus, a system, and a storage medium for establishing a multi-link block acknowledgement protocol.

In a first aspect, an embodiment of the present invention provides a method for establishing a multi-link block acknowledgement protocol, where the method includes:

sending an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request Element and a Parameter indicating establishment of a Multi-Link Block acknowledgement protocol, wherein SA represents a source address, DA represents a target address, ADDBA request Element represents a Block acknowledgement request Parameter, the ADDBA request Element comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, the Multi-Link Element is a Parameter indicating establishment of the Multi-Link Block acknowledgement protocol and is used for setting a plurality of pieces of Link information contained in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol;

receiving an ADDBA response frame, wherein the ADDBA response frame comprises parameters SA, DA and ADDBA response element, the ADDBA response element represents a block acknowledgement response parameter, the ADDBA response element comprises a parameter Status code, and the Status code represents a block acknowledgement protocol establishment result.

In a second aspect, an embodiment of the present invention provides a method for establishing a multi-link block acknowledgement protocol, where the method includes:

sending an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA, TA, RA and ADDBA request element, SA represents a source address, DA represents a destination address, TA represents a sender address, RA represents a receiver address, ADDBA request element represents a Block acknowledgement request Parameter, ADDBA request element comprises parameters Block Ack Parameter Set and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, ADDBA Extension represents other parameters related to a Block acknowledgement protocol, SA in the ADDBA request frame is Set as an address of an initiator STA or an address of a multilink device to which the initiator belongs, DA in the ADDBA request frame is Set as an address of a receiver STA or an address of a multilink device to which the receiver belongs, TA in the ADDBA request frame is Set as an empty address or an address of the initiator STA or an address of a multilink device to which the receiver belongs, and the STA in the ADDBA request frame and the link address of the initiator are Set as different values, and the ba request element address of the initiator STA and the link device is Set as an empty address of the initiator STA or the address of the recipient STA or the address of the link device, and the ba request element address of the ba request element, and the ba request element SA;

receiving an ADDBA response frame, wherein the ADDBA response frame comprises parameters SA, DA and ADDBA response element, wherein the ADDBA response element represents a block acknowledgement response parameter, the ADDBA response element includes a Status code, where the Status code indicates a block acknowledgement protocol establishment result.

In a third aspect, an embodiment of the present invention provides a method for establishing a multi-link block acknowledgement protocol, where the method includes:

receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request Element, and a Parameter indicating establishment of a Multi-Link Block acknowledgement protocol, wherein SA represents a source address, DA represents a target address, ADDBA request Element represents a Block acknowledgement request Parameter, and ADDBA request Element comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identifier TID of service data, the Multi-Link Element is a Parameter indicating establishment of the Multi-Link Block acknowledgement protocol, and is used for setting a plurality of pieces of Link information included in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol;

and sending an ADDBA response frame, wherein the ADDBA response frame comprises parameters SA, DA and ADDBA response element, the ADDBA response element represents a block acknowledgement response parameter, the ADDBA response element comprises a parameter Status code, and the Status code represents a block acknowledgement protocol establishment result.

In a fourth aspect, an embodiment of the present invention provides a method for establishing a multi-link block acknowledgement protocol, where the method includes:

receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA, TA, RA and ADDBA request element, wherein SA represents a source address, DA represents a target address, TA represents a sender address, RA represents a receiver address, ADDBA request element represents a Block acknowledgement request Parameter, and the ADDBA request element comprises parameters Block Ack Parameter Set and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol, setting SA in the ADDBA request frame as the address of an initiator STA or the address of a multilink device to which the initiator STA belongs, setting DA in the ADDBA request frame as the address of a receiver STA or the address of the multilink device to which the receiver STA belongs, setting TA in the ADDBA request frame as null or the address of the multilink device to which the initiator STA belongs or the address of the initiator STA, setting DA in the ADDBA request frame as null or the address of the multilink device to which the receiver STA belongs or the address of the receiver STA, setting the values of SA and TA in the ADDBA request frame to be different, and setting the values of DA and RA to be different;

In a possible implementation manner, in the method for establishing a multi-link block acknowledgement protocol according to the first aspect or the second aspect, the ADDBA request frame further includes parameters TA and RA, where TA denotes a sender address, RA denotes a receiver address, SA in the ADDBA request frame is set to an address of an initiator STA or an address of a multi-link device to which the initiator STA belongs, DA in the ADDBA request frame is set to an address of a receiver STA or an address of a multi-link device to which the receiver STA belongs, TA in the ADDBA request frame is set to be null or an address of a multi-link device to which the initiator STA belongs or an address of an initiator STA, DA in the ADDBA request frame is set to be null or an address of a multi-link device to which the receiver STA belongs or an address of a receiver STA, and SA and TA in the ADDBA request frame have different values, and DA and RA have different values.

In a possible implementation manner, in the method for establishing a Multi-Link block acknowledgement protocol according to the second aspect or the fourth aspect, the ADDBA request Element further includes a Multi-Link Element that is a parameter and is used to set a plurality of pieces of Link information included in the Multi-Link block acknowledgement protocol.

In a possible implementation manner, in the method for establishing a multi-link block acknowledgement protocol according to any one of the first to the fourth aspects, the ADDBA response frame further includes parameters TA and RA, where TA represents a sender address, RA represents a receiver address, SA in the ADDBA response frame is set to an address of a receiver STA or an address of a multi-link device to which the receiver STA belongs, DA in the ADDBA response frame is set to an address of an initiator STA or an address of a multi-link device to which the initiator STA belongs, TA in the ADDBA response frame is set to null or an address of a multi-link device to which the receiver STA belongs or an address of a receiver STA, DA in the ADDBA response frame is set to null or an address of a multi-link device to which the initiator STA belongs or an address of the initiator STA, and SA and TA in the ADDBA response frame have different values, and DA and RA have different values.

In a possible implementation manner, in the method for establishing a Multi-Link Block acknowledgement protocol according to any one of the first to the fourth aspects, the ADDBA response Element further includes parameters Block Ack Parameter Set, multi-Link Element, and ADDBA Extension, where the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Multi-Link Element is used to Set multiple pieces of Link information included in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol.

In a possible implementation manner, in the method for establishing a multi-link block acknowledgement protocol according to the third aspect, after receiving the ADDBA request frame and before sending the ADDBA response frame, the method further includes: and judging whether the links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value, and executing operation according to the judgment result.

In a possible implementation manner, in the method for establishing a multi-link block acknowledgement protocol according to the fourth aspect, after receiving the ADDBA request frame and before sending the ADDBA response frame, the method further includes:

if the ADDBA request frame does not contain the Multi-Link Element, checking a locally stored TID-Link mapping table, and containing the Link information corresponding to the received parameter TID value in the Multi-Link Element of the ADDBA response frame;

and if the ADDBA request frame comprises the Multi-Link Element, judging whether the links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value, and executing operation according to the judgment result.

In a possible implementation manner, in the method for establishing a multi-link block acknowledgement protocol according to the third aspect or the fourth aspect, after receiving the ADDBA request frame and before sending the ADDBA response frame, the method further includes:

if the ADDBA request frame contains TA and RA, and the value of RA or the value of DA is the address of the multilink equipment to which the receiver STA belongs, if the request is accepted, status code is set to indicate that the establishment of a block acknowledgement protocol is agreed; if the request is not accepted, the Status code is set to indicate that the establishing of the block acknowledgement protocol is not agreed, or the Status code is set to indicate that the establishing of the block acknowledgement protocol is agreed, and parameter values supported by the Status code are contained in an ADDBA response frame.

In a possible implementation manner, the determining whether all links indicated by Multi-Link elements of the ADDBA request frame support the received parameter TID value, and performing an operation according to the determination result includes:

if the Link indicated by the Multi-Link Element of the ADDBA request frame supports the received parameter TID value, if the request is accepted, the Status code is set to indicate that the establishment of the block acknowledgement protocol is agreed; if the request is not accepted, setting Status code to indicate that the building of the block acknowledgement protocol is not agreed, or setting Status code to indicate that the building of the block acknowledgement protocol is agreed, and including the parameter value supported by the Status code in an ADDBA response frame;

if the Link indicated by the Multi-Link Element of the ADDBA request frame does not support the received parameter TID value, setting Status code to indicate that the establishment of the block acknowledgement protocol is not approved;

if the received parameter TID value is supported by the part of the Link indicated by the Multi-Link Element of the ADDBA request frame, the supported Link information is included in the Multi-Link Element of the ADDBA response frame.

In a fifth aspect, an embodiment of the present invention provides an apparatus for establishing a multi-link block acknowledgement protocol, where the apparatus includes:

the initiator communication module I is used for sending an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request Element and a Parameter for indicating establishment of a Multi-Link Block acknowledgement protocol, wherein SA represents a source address, DA represents a target address, ADDBA request Element represents a Block acknowledgement request Parameter, the ADDBA request Element comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, the Multi-Link Element is a Parameter for indicating establishment of the Multi-Link Block acknowledgement protocol and is used for setting a plurality of pieces of Link information contained in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol;

and the initiator communication module II is used for receiving an ADDBA response frame, wherein the ADDBA response frame comprises parameters SA, DA and ADDBA response element, the ADDBA response element represents a block acknowledgement response parameter, the ADDBA response element comprises a parameter Status code, and the Status code represents a block acknowledgement protocol establishment result.

In a sixth aspect, an embodiment of the present invention provides an apparatus for establishing a multi-link block acknowledgement protocol, where the apparatus includes:

the initiator communication module I is used for sending an ADDBA request frame, the ADDBA request frame comprises parameters SA, DA, TA, RA and ADDBA request element, wherein SA represents a source address, DA represents a target address, TA represents a sender address, RA represents a receiver address, ADDBA request element represents a Block acknowledgement request Parameter, and the ADDBA request element comprises parameters Block Ack Parameter Set and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol, setting SA in the ADDBA request frame as the address of an initiator STA or the address of a multilink device to which the initiator STA belongs, setting DA in the ADDBA request frame as the address of a receiver STA or the address of the multilink device to which the receiver STA belongs, setting TA in the ADDBA request frame as null or the address of the multilink device to which the initiator STA belongs or the address of the initiator STA, setting DA in the ADDBA request frame as null or the address of the multilink device to which the receiver STA belongs or the address of the receiver STA, setting the values of SA and TA in the ADDBA request frame to be different, and setting the values of DA and RA to be different;

In a seventh aspect, an embodiment of the present invention provides an apparatus for establishing a multi-link block acknowledgement protocol, where the apparatus includes:

the receiver communication module I is used for receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request Element and a Parameter for indicating establishment of a Multi-Link Block acknowledgement protocol, wherein SA represents a source address, DA represents a target address, ADDBA request Element represents a Block acknowledgement request Parameter, the ADDBA request Element comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, the Multi-Link Element is a Parameter for indicating establishment of the Multi-Link Block acknowledgement protocol and is used for setting a plurality of pieces of Link information contained in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol;

and the second receiver communication module is used for sending an ADDBA response frame, wherein the ADDBA response frame comprises parameters SA, DA and ADDBA response element, the ADDBA response element represents a block acknowledgement response parameter, the ADDBA response element comprises a parameter Status code, and the Status code represents a block acknowledgement protocol establishment result.

In an eighth aspect, an embodiment of the present invention provides an apparatus for establishing a multi-link block acknowledgement protocol, where the apparatus includes:

the receiver communication module I is used for receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA, TA, RA and ADDBA request element, SA represents a source address, DA represents a target address, TA represents a sender address, RA represents a receiver address, ADDBA request element represents a Block acknowledgement request Parameter, and the ADDBA request element comprises parameters Block Ack Parameter Set and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol, setting SA in the ADDBA request frame as the address of an initiator STA or the address of a multilink device to which the initiator STA belongs, setting DA in the ADDBA request frame as the address of a receiver STA or the address of the multilink device to which the receiver STA belongs, setting TA in the ADDBA request frame as null or the address of the multilink device to which the initiator STA belongs or the address of the initiator STA, setting DA in the ADDBA request frame as null or the address of the multilink device to which the receiver STA belongs or the address of the receiver STA, setting the values of SA and TA in the ADDBA request frame to be different, and setting the values of DA and RA to be different;

In a ninth aspect, an embodiment of the present invention provides an apparatus for establishing a multi-link block acknowledgement protocol, 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 establishing a multi-link block acknowledgement protocol according to any one of the first to fourth aspects.

In a tenth aspect, an embodiment of the present invention provides a system for establishing a multi-link block acknowledgement protocol, where the system includes an initiator multi-link device and a receiver multi-link device, the initiator multi-link device includes an initiator STA, the receiver multi-link device includes a receiver STA, the initiator multi-link device and the receiver multi-link device are in communication connection at least through the initiator STA and the receiver STA, the initiator multi-link device is configured to implement the method for establishing the multi-link block acknowledgement protocol according to the first aspect or the second aspect, and the receiver multi-link device is configured to implement the method for establishing the multi-link block acknowledgement protocol according to the third aspect or the fourth aspect.

In an eleventh aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores at least one instruction, at least one program code, a code set, or a set of instructions, and the at least one instruction, at least one program code, a code set, or a set of instructions is loaded and executed by a processor to implement the method for establishing the multi-link block acknowledgement protocol according to any one of the first aspect to the fourth aspect.

It should be noted that the apparatus in the fifth aspect is configured to perform the method in the foregoing first aspect, the apparatus in the sixth aspect is configured to perform the method in the foregoing second aspect, the apparatus in the seventh aspect is configured to perform the method in the foregoing third aspect, the apparatus in the eighth aspect is configured to perform the method in the foregoing fourth aspect, the apparatus in the ninth aspect and the readable storage medium in the eleventh aspect are configured to perform the method in any of the foregoing first to fourth aspects, and therefore, the same beneficial effects as those of the method in any of the first to fourth aspects can be achieved, and the embodiments of the present invention are not described in detail again.

The method, the device, the system and the storage medium for establishing the multi-link block acknowledgement protocol provided by the invention provide a flexible service data transmission mode, solve the problems of data loss and data repetition in a multi-link operation scene and improve the network and data transmission efficiency.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of 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 independently be provided as a complete solution. 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 word using examples is intended to present concepts in a concrete fashion.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. 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 listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

In the embodiment of the invention, the multilink equipment comprises a plurality of logic entities, each logic entity carries out data transmission through one link, and each logic entity comprises an independent data transceiver module. A conventional single-link device has only one logical entity and only one MAC address, while a multi-link device has one MAC address, and each logical entity belonging to the multi-link device has one MAC address, for example, if a multi-link device runs with 3 logical entities, there are 4 MAC addresses on the physical device, one is a multi-link device, and each of the three logical entities has one MAC address.

In the embodiment of the present invention, the logical entity of the initiator multilink device that sends the block acknowledgement protocol request message is referred to as the initiator STA, and the logical entity of the peer multilink device (i.e., the receiver multilink device) that the initiator STA wishes to establish the block acknowledgement protocol is referred to as the receiver STA. And after the establishment of the block acknowledgement protocol is finished, feeding back the receiving state of the data packet between the initiator STA and the receiver STA in a block acknowledgement mode.

In the embodiment of the present invention, a block acknowledgement mode in which data packets are shared on different links between multilink devices is referred to as multilink block acknowledgement, a block acknowledgement protocol established between multilink devices is referred to as a multilink block acknowledgement protocol, and a plurality of logical entities on the multilink devices share the same multilink block acknowledgement protocol, that is, only one multilink block acknowledgement protocol is established for a plurality of links.

In the previous connection process, the devices of both sides of the established block acknowledgement protocol mutually acquire the address of the multilink device of the other side and the address of the logic entity belonging to the multilink device. The multilink device stores this information locally. Subsequently, a multi-link block acknowledgement protocol establishment procedure is performed. In the embodiment of the invention, the method for establishing the multi-link block acknowledgement protocol comprises the following contents:

1. the initiator STA sends an ADDBA request frame to the recipient STA, for example, the parameters contained in the ADDBA request frame are shown in table 1.

TABLE 1

Here, ADDBA request element setting is shown in table 2, for example.

TABLE 2

Wherein, the Parameter Block Ack Parameter Set is shown in table 3.

TABLE 3

Illustratively, the Multi-Link Element setting mode includes the following modes:

1) As shown in table 4.

TABLE 4

Wherein the STA _1-n info setting is the total number of links sharing the same block acknowledgement protocol as table 5,n.

TABLE 5

Parameter(s)	Description of the invention
		Center-f	Center frequency of link where logical entity is located
STA Address	An address or identification of a logical entity;

2) As shown in table 6.

TABLE 6

Wherein Link _1-n info setting such as table 7 or table 8 or table 9,n is the total number of links sharing the same block acknowledgement protocol.

TABLE 7

Parameter(s)	Description of the invention
		Link ID	Identification of a link

TABLE 8

Parameter(s)	Description of the preferred embodiment
		S-STA Address	Address of initiator STA
D-STA Address	Address of receiver STA

TABLE 9

Optionally, the parameter MLE Type is further included in the Multi-Link Element, and the MLE Type indicates the Type of the Multi-Link Element. In this embodiment, the Multi-Link Element setting modes include the following:

1) As shown in table 10.

TABLE 10

2) As shown in table 11.

TABLE 11

Illustratively, the parameter ADDBA Extension setting may be as follows:

1) As shown in table 12.

TABLE 12

2) As shown in table 13.

Watch 13

Examples of settings for the parameters SA, DA, TA, RA are as follows:

1) When the single link block acknowledgement protocol is established,

and SA: setting as the address of the initiator STA;

DA: set to the address of the receiver STA;

TA: does not contain the parameter, or is set to NULL;

RA: does not contain the parameter, or is set to NULL;

2) When the multi-link block acknowledgement protocol is established,

and SA: setting the address of multilink equipment to which the initiator STA belongs;

DA: setting the address of multilink equipment to which a receiver STA belongs;

TA: setting as the address of the initiator STA;

RA: set to the address of the receiver STA;

3) When the multi-link block acknowledgement protocol is established,

and SA: setting as the address of the initiator STA;

DA: set to the address of the receiver STA;

TA: setting the address of multilink equipment to which an initiator STA belongs;

RA: setting the address of multilink equipment to which the STA of a receiver belongs;

4) When the multi-link block acknowledgement protocol is established,

and SA: setting as the address of the initiator STA;

DA: set to the address of the receiver STA;

TA: does not contain the parameter, or is set to NULL;

RA: does not contain the parameter, or is set to NULL;

and establishing a Multi-Link block acknowledgement protocol through a Multi-Link Element instruction contained in the ADDBA request frame.

2. After the recipient STA receives the ADDBA request frame,

2.1 if the request does not contain the parameters TA and RA and does not contain the parameter Multi-Link Element, setting Status code to indicate that the establishment of the block acknowledgement protocol is agreed, such as setting to SUCCESS; if the request is not accepted, setting Status code to indicate that the establishment of the block acknowledgement protocol is not approved, if the setting is "REFUSED", or setting Status code to "SUCCESS", and including the parameter value supported by the Status code in an ADDBA response frame;

2.2 if the Multi-Link Element contains the parameter, judging whether the links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value, and executing operation according to the judgment result;

2.3 if parameters TA and RA are contained and the parameter Multi-Link Element is not contained, if the value of RA is the address of the Multi-Link device to which the receiver STA belongs and the value of DA is the address of the receiver STA, or the value of RA is the address of the receiver STA and the value of DA is the address of the Multi-Link device to which the receiver STA belongs, checking a local stored TID-Link mapping table, and containing Link information corresponding to the received parameter TID value in the Multi-Link Element of the ADDBA response frame; otherwise, if the request is accepted, setting Status code to indicate that the establishment of the block acknowledgement protocol is agreed, if the Status is set to 'SUCCESS'; if the request is not accepted, setting Status code to indicate that the establishment of the block acknowledgement protocol is not approved, if the setting is "REFUSED", or setting Status code to "SUCCESS", and including the parameter value supported by the Status code in an ADDBA response frame;

2.4 (this scenario is that all links support all TIDs by default) if parameters TA and RA are included, check if the value of RA or DA is the address of the multilink device to which the receiver STA belongs, if yes, set Status code to indicate agreement to establish a block acknowledgement protocol, e.g., set to "SUCCESS"; if the request is not accepted, the Status code is set to indicate that the block acknowledgement protocol is not approved, such as "REFUSED" or "SUCCESS", and the parameter values supported by the Status code are included in the ADDBA response frame.

The ADDBA response frame may be sent to the initiator STA by the receiver STA, or may be sent to a logical entity connected to the Multi-Link device belonging to the initiator STA by another logical entity listed in the Multi-Link Element of the Multi-Link device belonging to the receiver STA.

Judging whether links indicated by Multi-Link elements of the ADDBA request frame support the received parameter TID value, and executing operation according to the judgment result comprises the following steps:

if the Link indicated by the Multi-Link Element of the ADDBA request frame supports the received parameter TID value, if the request is accepted, setting Status code to indicate that the establishment of a block acknowledgement protocol is agreed; if the request is not accepted, setting Status code to indicate that the building of the block acknowledgement protocol is not agreed, or setting Status code to indicate that the building of the block acknowledgement protocol is agreed, and including the parameter value supported by the Status code in an ADDBA response frame;

Addba response frame settings are shown in table 14, for example.

TABLE 14

Here, the ADDBA response element setting is shown in table 15, for example.

Watch 15

Examples of settings for the parameters SA, DA, TA, RA are as follows:

1) When the establishment of the single link block acknowledgement protocol is acknowledged,

and SA: set to the address of the receiver STA;

d, DA: setting as the address of the initiator STA;

TA: does not contain this parameter, or is set to NULL;

RA: does not contain the parameter, or is set to NULL;

2) When the establishment of the multi-link block acknowledgement protocol is acknowledged,

and SA: setting the address of multilink equipment to which a receiver STA belongs;

d, DA: setting the address of multilink equipment to which an initiator STA belongs;

TA: set to the address of the receiver STA;

RA: setting as the address of the initiator STA;

3) When the establishment of the multi-link block acknowledgement protocol is acknowledged,

and SA: set to the address of the receiver STA;

d, DA: setting as the address of the initiator STA;

TA: setting the address of multilink equipment to which a receiver STA belongs;

RA: setting the address of multilink equipment to which the initiator STA belongs;

4) When the establishment of the multi-link block acknowledgement protocol is acknowledged,

and SA: set to the address of the receiver STA;

DA: setting as the address of the initiator STA;

TA: does not contain the parameter, or is set to NULL;

RA: does not contain the parameter, or is set to NULL;

and confirming the establishment of the Multi-Link block confirmation protocol by the indication of a Multi-Link Element contained in an ADDBA response frame.

4. After the initiator STA or other logical entity of the multilink device to which the initiator STA belongs receives the ADDBA response frame,

if the parameter Status code indicates that the establishment of the block acknowledgement protocol is agreed, performing multi-link block acknowledgement operation according to other parameters;

if the parameter Status code indicates that the establishment of the block acknowledgement protocol is not approved, the operation is carried out according to a normal data packet acknowledgement mode.

In the embodiment of the present invention, based on the same inventive concept as the above method for establishing a multi-link block acknowledgement protocol, an apparatus for establishing a multi-link block acknowledgement protocol is further provided in the embodiment of the present invention, where the apparatus includes:

The embodiment of the invention also provides another device for establishing the multi-link block acknowledgement protocol, which comprises the following steps:

the receiver communication module I is used for receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA, TA, RA and ADDBA request element, wherein SA represents a source address, DA represents a target address, TA represents a sender address, RA represents a receiver address, ADDBA request element represents a Block acknowledgement request Parameter, and the ADDBA request element comprises parameters Block Ack Parameter Set and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol, setting SA in the ADDBA request frame as the address of an initiator STA or the address of a multilink device to which the initiator STA belongs, setting DA in the ADDBA request frame as the address of a receiver STA or the address of the multilink device to which the receiver STA belongs, setting TA in the ADDBA request frame as null or the address of the multilink device to which the initiator STA belongs or the address of the initiator STA, setting DA in the ADDBA request frame as null or the address of the multilink device to which the receiver STA belongs or the address of the receiver STA, setting the values of SA and TA in the ADDBA request frame to be different, and setting the values of DA and RA to be different;

In this embodiment of the present invention, based on the same inventive concept as the method for establishing the multi-link block acknowledgement protocol, an embodiment of the present invention further provides a device for establishing the multi-link block acknowledgement protocol, where the device includes a processor and a memory, where the memory stores at least one instruction, at least one program code, a code set, or an instruction set, and the at least one instruction, at least one program code, a code set, or an instruction set is loaded and executed by the processor, so as to implement the method for establishing the multi-link block acknowledgement protocol according to the above embodiment.

In addition, an embodiment of the present invention further provides a computer-readable storage medium, where at least one instruction, at least one program code, a code set, or a set of instructions is stored in the computer-readable storage medium, and the at least one instruction, the at least one program code, the code set, or the set of instructions is loaded and executed by a processor to implement the method for establishing a multi-link block acknowledgement protocol 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 imply an order of execution, some or all steps may be executed in parallel or executed sequentially, and the order of execution of each process should be determined by its function and inherent logic, and should not limit the implementation process of the embodiments of the present invention in any way.

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 implementation. 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 several 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 place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present 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.

If the functions are implemented in the form of software functional units and sold or used as separate products, 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 device, 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 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. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

The word "if" or "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

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 multi-link block acknowledgement protocol establishment, the method comprising:

2. A method for multi-link block acknowledgement protocol establishment, the method comprising:

3.A method for multi-link block acknowledgement protocol establishment, the method comprising:

receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request Element and a Parameter indicating establishment of a Multi-Link Block acknowledgement protocol, wherein SA represents a source address, DA represents a target address, the ADDBA request Element represents a Block acknowledgement request Parameter, the ADDBA request Element comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, the Multi-Link Element is a Parameter indicating establishment of the Multi-Link Block acknowledgement protocol and is used for setting a plurality of pieces of Link information contained in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol;

4. A method for multi-link block acknowledgement protocol establishment, the method comprising:

receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA, TA, RA and ADDBA request element, SA represents a source address, DA represents a target address, TA represents a sender address, RA represents a receiver address, the ADDBA request element represents a Block acknowledgement request Parameter, the ADDBA request element comprises parameters Block Ack Parameter Set and ADDBA Extension, the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol, setting SA in the ADDBA request frame as the address of an initiator STA or the address of a multilink device to which the initiator STA belongs, setting DA in the ADDBA request frame as the address of a receiver STA or the address of the multilink device to which the receiver STA belongs, setting TA in the ADDBA request frame as null or the address of the multilink device to which the initiator STA belongs or the address of the initiator STA, setting DA in the ADDBA request frame as null or the address of the multilink device to which the receiver STA belongs or the address of the receiver STA, setting the values of SA and TA in the ADDBA request frame to be different, and setting the values of DA and RA to be different;

5. The method of claim 1 or 3, wherein the ADDBA request frame further comprises parameters TA and RA, wherein TA represents a sender address, RA represents a receiver address, SA in the ADDBA request frame is set to an address of the initiator STA or an address of a multi-link device to which the initiator STA belongs, DA in the ADDBA request frame is set to an address of the receiver STA or an address of a multi-link device to which the receiver STA belongs, TA in the ADDBA request frame is set to null or an address of a multi-link device to which the initiator STA belongs or an address of the initiator STA, DA in the ADDBA request frame is set to null or an address of a multi-link device to which the receiver STA belongs or an address of the receiver STA, and SA and TA in the ADDBA request frame have different values and DA and RA have different values.

6. The method for establishing the Multi-Link block acknowledgement protocol according to claim 2 or 4, wherein the ADDBA request Element further includes a parameter Multi-Link Element, and the Multi-Link Element is used for setting a plurality of pieces of Link information included in the Multi-Link block acknowledgement protocol.

7. The method of any one of claims 1-4, wherein the ADDBA response frame further comprises parameters TA and RA, wherein TA represents sender address, RA represents receiver address, SA in the ADDBA response frame is set as address of receiver STA or multi-link device to which the receiver STA belongs, DA in the ADDBA response frame is set as address of initiator STA or multi-link device to which the initiator STA belongs, TA in the ADDBA response frame is set as null or address of multi-link device to which the receiver STA belongs or address of receiver STA, DA in the ADDBA response frame is set as null or address of multi-link device to which the initiator STA belongs or address of initiator STA, SA and TA in the ADDBA response frame have different values, and DA and RA have different values.

8. The method of any one of claims 1-4, wherein the ADDBA response Element further comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Multi-Link Element is used to Set a plurality of pieces of Link information included in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol.

9. The method of claim 1, wherein the Multi-Link Element includes a parameter STA _i info or Link _i info，STA _i The info includes parameters Center-f and STA Address，Link _i The info includes parameter Link ID and/or parameters S-STA Address and D-STA Address, wherein Center-f represents the Center frequency of the Link where the logic entity is located, STA Address represents the Address or identification of the logic entity, link ID represents the identification of the Link, S-STA Address represents the Address of the initiator STA, D-STA Address represents the Address of the receiver STA, i is more than or equal to 1 and less than or equal to n, and n is the total number of links sharing the same block acknowledgement protocol.

10. The method of claim 6, wherein the Multi-Link Element includes a parameter STA _i info or Link _i info，STA _i The info includes parameters Center-f and STA Address, link _i The info includes parameter Link ID and/or parameters S-STA Address and D-STA Address, wherein Center-f represents the Center frequency of the Link where the logic entity is located, STA Address represents the Address or identification of the logic entity, link ID represents the identification of the Link, S-STA Address represents the Address of the initiator STA, D-STA Address represents the Address of the receiver STA, i is more than or equal to 1 and less than or equal to n, and n is the total number of links sharing the same block acknowledgement protocol.

11. The method of any of claims 1-4, wherein the ADDBA Extension includes the parameters No-fragment and Receive status on all link or the parameters No-fragment and Receive status on one link, wherein the No-fragment indicates whether the packet is fragmented, the Receive status on all link indicates whether all requested links send BA frames, and the BA frame sent on each link includes the packet receiving status on all links, and the Receive status on link indicates whether the BA frame is sent on only one link, and the BA frame sent on the link includes the packet receiving status on all links.

12. The method of claim 11, wherein if ADDBA Extension includes a parameter Receive status on one link and the Receive status on one link is set to indicate that a BA frame is sent on only one link and the BA frame sent on that link includes a status of packet reception on all links, sending a BA frame on the link that receives and sends the ADDBA request frame and the ADDBA response frame.

13. The method of claim 11 wherein the multi-link device to which the receiver STA belongs decides the link to send the BA frame if ADDBA Extension includes the parameter Receive status on one link and the parameter Receive status on one link is set to indicate that the BA frame is sent on only one link and the BA frame sent on the link includes the status of packet reception on all links.

14. The method of claim 3, wherein after receiving the ADDBA request frame and before sending the ADDBA response frame, the method further comprises:

judging whether the links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value, and executing operation according to the judgment result.

15. The method of claim 4, wherein after receiving the ADDBA request frame and before sending the ADDBA response frame, the method further comprises:

if the ADDBA request frame does not contain the Multi-Link Element, checking a TID-Link mapping table stored locally, and containing Link information corresponding to the received parameter TID value in the Multi-Link Element of the ADDBA response frame;

16. The method of claim 3 or 4, wherein after receiving the ADDBA request frame and before sending the ADDBA response frame, the method further comprises:

if the ADDBA request frame contains TA and RA, and the value of RA or the value of DA is the address of the multilink equipment to which the receiver STA belongs, if the request is accepted, status code is set to indicate that the establishment of a block acknowledgement protocol is agreed; if the request is not accepted, the Status code is set to indicate that the block acknowledgement protocol is not agreed to be established, or the Status code is set to indicate that the block acknowledgement protocol is agreed to be established, and the parameter value supported by the Status code is contained in the ADDBA response frame.

17. The method of claim 14 or 15, wherein the determining whether the links indicated by Multi-Link elements of the ADDBA request frame all support the received parameter TID value, and performing the operation according to the determination result comprises:

18. The method of claim 3 or 4, wherein after receiving the ADDBA request frame and before sending the ADDBA response frame, the method further comprises:

one logical entity is selected from the logical entities of the multilink device to which the receiver STA belongs, which are indicated in the Multi-Link Element, to transmit the ADDBA response frame.

19. A method of multi-link block acknowledgement protocol establishment according to any one of claims 1 to 4, characterized in that the method further comprises:

the address of the peer-to-peer multilink device and the address of the logical entity belonging to the peer-to-peer multilink device are acquired and locally stored.

20. The method for establishing the Multi-Link block acknowledgement protocol according to claim 9 or 10, wherein the Multi-Link Element further includes a parameter MLE Type, and the MLE Type indicates a Type of the Multi-Link Element.

21. An apparatus for multi-link block acknowledgement protocol establishment, the apparatus comprising:

22. An apparatus for multi-link block acknowledgement protocol establishment, the apparatus comprising:

23. An apparatus for multi-link block acknowledgement protocol establishment, the apparatus comprising:

the receiver communication module I is used for receiving an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request Element, and a Parameter for indicating establishment of a Multi-Link Block acknowledgement protocol, wherein SA represents a source address, DA represents a target address, the ADDBA request Element represents a Block acknowledgement request Parameter, the ADDBA request Element comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, wherein the Block Ack Parameter Set represents a Block acknowledgement operation Parameter, the Block Ack Parameter Set comprises an identification TID of service data, the Multi-Link Element is a Parameter for indicating establishment of the Multi-Link Block acknowledgement protocol and is used for setting a plurality of Link information contained in the Multi-Link Block acknowledgement protocol, and the ADDBA Extension represents other parameters related to the Block acknowledgement protocol;

24. An apparatus for multi-link block acknowledgement protocol establishment, the apparatus comprising:

25. An apparatus for multi-link block acknowledgement protocol establishment, 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, loaded and executed by the processor to implement the method for multi-link block acknowledgement protocol establishment according to any of claims 1-20.

26. A system for multi-link block acknowledgement protocol establishment, the system comprising an initiator multi-link device and a receiver multi-link device, the initiator multi-link device comprising an initiator STA, the receiver multi-link device comprising a receiver STA, the initiator multi-link device and the receiver multi-link device being in communication connection at least through the initiator STA and the receiver STA, wherein the initiator multi-link device is configured to implement the method for multi-link block acknowledgement protocol establishment according to any one of claims 1 to 2, and the receiver multi-link device is configured to implement the method for multi-link block acknowledgement protocol establishment according to any one of claims 3 to 4.

27. 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 multi-link block acknowledgement protocol establishment according to any one of claims 1-20.