CN115150037B

CN115150037B - Method, device, system and storage medium for establishing multi-link block acknowledgement protocol

Info

Publication number: CN115150037B
Application number: CN202110338282.6A
Authority: CN
Inventors: 吴昊; 王鑫
Original assignee: Jimi Technology Co ltd
Current assignee: Jimi Technology Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2023-11-28
Anticipated expiration: 2041-03-30
Also published as: CN115150037A

Abstract

The invention discloses a method, a device, a system and a storage medium for establishing a multilink block acknowledgement protocol. The method comprises the following steps: transmitting an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request element and parameters for indicating establishment of a multi-link block acknowledgement protocol; an ADDBA response frame is received, where the ADDBA response frame includes parameters SA, DA, and ADDBA response element, where ADDBA response element represents a block acknowledgement response parameter, and ADDBA response element includes a parameter Status code. The invention provides a flexible service data transmission mode, solves the problem of data loss and data repetition in a multi-link 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, apparatus, system, and 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 internally deployed with a MAC layer and a PHY layer, wherein main functions of the MAC layer include channel management, connection management, quality of service management, power control, time synchronization, and the like, and 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 proper MAC operation, each device (including Non-AP STA and AP STA) has a high-level management entity therein, such as SME (station management entity, device management entity), which means that the high-level management entity above the MAC layer is a layer-independent entity, which is located in a separate management plane.

Action of SME: typically, the entity is responsible for functions such as collecting layer-related states from various layer management entities (MLME and PLME), and similarly, it will also set layer-specific parameter values. SMEs typically perform such functions on behalf of general system management entities. The layers interact through defined primitives.

802.11be networks, also known as Extremely High Throughput (EHT) networks, enhance functionality through a range of system characteristics and mechanisms to achieve extremely high throughput. As the use of Wireless Local Area Networks (WLANs) continues to grow, it is increasingly important to provide wireless data services in many environments, such as homes, businesses, and hotspots. In particular, video traffic will continue to be the dominant traffic type in many WLAN deployments. The throughput requirements of these applications are evolving due to the advent of 4k and 8k video (20 Gbps uncompressed rate). New high throughput, low latency applications such as virtual or augmented reality, gaming, remote offices, and cloud computing will proliferate (e.g., latency for real-time gaming is less than 5 milliseconds).

In view of the high throughput and stringent real-time delay requirements of these applications, users desire to support their applications over a WLAN with higher throughput, higher reliability, less delay and jitter, and higher power efficiency. Users desire improved integration with Time Sensitive Networks (TSNs) to support applications on heterogeneous ethernet and wireless LANs. The 802.11be network aims to ensure the competitiveness of WLAN by further improving the overall throughput and reducing the delay while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz,5GHz and 6GHz frequency bands.

Disclosure of Invention

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 whether the sender correctly receives the data packet. With the increase of the network data rate, after the network allows the sender to send a plurality of data packets, the receiver feeds back the plurality of data packets, so that a message for feeding back the plurality of data packets is called Block ACK, i.e. a Block acknowledgement mode. To use a block acknowledgement scheme between two terminals, a block acknowledgement protocol must first be established between the two terminals.

In the multi-link operation scenario, there are independent links between the multi-link terminal device and the multi-link access device, according to the implementation of the prior art, each link needs to independently perform the block acknowledgement protocol establishment process, but actually for the multi-link terminal, different links can be supported to independently perform different services, and also different links can be supported to perform the same service, that is, data packets supporting the same TID (identification of the service) are transmitted on the multiple links, so that the physical entity for receiving and transmitting is only one, that is, only one distributing body of the data packets, and the data packets need to be strictly divided and then distributed to each link for transmission after being fed back to ACK respectively on the two links. In view of this, the embodiments of the present invention provide a method, apparatus, system and 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:

transmitting an ADDBA request frame, wherein the ADDBA request frame comprises parameters SA, DA and ADDBA request Element and a parameter indicating to establish a Multi-Link block acknowledgement protocol, SA represents a source address, DA represents a destination address, ADDBA request Element represents a block acknowledgement request parameter, ADDBA request Element comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, block Ack Parameter Set represents a block acknowledgement operation parameter, block Ack Parameter Set comprises an identifier TID of service data, multi-Link Element is a parameter indicating to establish 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 ADDBA Extension represents other parameters related to the block acknowledgement protocol;

an ADDBA response frame is received, where the ADDBA response frame includes parameters SA, DA, and ADDBA response element, where ADDBA response element indicates a block acknowledgement response parameter, and ADDBA response element includes a parameter Status code, where Status code indicates 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:

transmitting an ADDBA request frame, where the ADDBA request frame includes parameters SA, DA, TA, RA and ADDBA request element, SA indicates a source address, DA indicates a destination address, TA indicates a sender address, RA indicates a receiver address, ADDBA request element indicates a block acknowledgement request parameter, ADDBA request element includes parameters Block Ack Parameter Set and ADDBA Extension, block Ack Parameter Set indicates a block acknowledgement operation parameter, block Ack Parameter Set includes a service data identifier TID, ADDBA Extension indicates other parameters related to a block acknowledgement protocol, 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 an address of an empty or multi-link device to which the receiver STA belongs or an address of the receiver STA, DA in the ADDBA request frame is set to an address of an empty or multi-link device to which the receiver STA belongs or an address of the receiver STA, and SA in the ADDBA request frame are different in values;

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, where the ADDBA request frame includes parameters SA, DA and ADDBA request Element, and a parameter indicating that a Multi-Link block acknowledgement protocol is established, where SA indicates a source address, DA indicates a destination address, ADDBA request Element indicates a block acknowledgement request parameter, ADDBA request Element includes a parameter Block Ack Parameter Set, multi-Link Element and ADDBA Extension, block Ack Parameter Set indicates a block acknowledgement operation parameter, block Ack Parameter Set includes an identifier TID of service data, multi-Link Element is a parameter indicating that a Multi-Link block acknowledgement protocol is established, and is used to set multiple Link information included in the Multi-Link block acknowledgement protocol, and ADDBA Extension indicates 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, ADDBA response element represents a block acknowledgement response parameter, and ADDBA response element comprises a parameter Status code, wherein 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, where the ADDBA request frame includes parameters SA, DA, TA, RA and ADDBA request element, SA indicates a source address, DA indicates a destination address, TA indicates a sender address, RA indicates a receiver address, ADDBA request element indicates a block acknowledgement request parameter, ADDBA request element includes parameters Block Ack Parameter Set and ADDBA Extension, block Ack Parameter Set indicates a block acknowledgement operation parameter, block Ack Parameter Set includes an identifier TID of service data, ADDBA Extension indicates other parameters related to a block acknowledgement protocol, 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 an address of an empty or multi-link device to which the receiver STA belongs or an address of the receiver STA, DA in the ADDBA request frame is set to an address of an empty or a multi-link device to which the receiver STA belongs, and SA in the ADDBA request frame are different values;

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, parameters TA and RA are further included in the ADDBA request frame, where TA represents a sender address and RA represents 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 a 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 a null or an address of a multi-link device to which the receiver STA belongs or an address of the receiver STA, and values of SA and TA in the ADDBA request frame are different.

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 parameter Multi-Link Element, where the Multi-Link Element is used to set multiple 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 fourth aspects, parameters TA and RA are further included in the ADDBA response frame, 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 a 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 a 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.

In a possible implementation manner, in the method for establishing a Multi-Link block acknowledgement protocol according to any one of the first aspect to the fourth aspect, parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension are further included in ADDBA response Element, where Block Ack Parameter Set represents a block acknowledgement operation parameter, multi-Link Element is used to set multiple Link information included in the Multi-Link block acknowledgement protocol, and 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 an ADDBA request frame and before sending an ADDBA response frame, the method further includes: judging whether links indicated by Multi-Link elements of the ADDBA request frame support the received parameter TID value or not, and executing operation according to the judging result.

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

if the ADDBA request frame does not contain 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;

if the Multi-Link Element is contained in the ADDBA request frame, judging whether links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value, and executing operation according to the judging 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 an ADDBA request frame and before sending an ADDBA response frame, the method further includes:

If the ADDBA request frame contains TA and RA, and the RA value or DA value is the address of the multi-link device to which the receiver STA belongs, setting a Status code to indicate agreement to establish a block acknowledgement protocol if the request is accepted; if the request is not accepted, setting Status code to indicate that the establishment of the block acknowledgement protocol is not agreed, or setting Status code to indicate that the establishment of the block acknowledgement protocol is agreed, and including the parameter values supported by itself in the ADDBA response frame.

In one possible implementation manner, the determining whether the links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value includes:

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

if none of the links indicated by the Multi-Link Element of the ADDBA request frame supports the received parameter TID value, setting a Status code to indicate disagreement to establish a block acknowledgement protocol;

If the partial Link indicated by the Multi-Link Element of the ADDBA request frame supports the received parameter TID value, 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:

an initiator communication module one, configured to send an ADDBA request frame, where the ADDBA request frame includes parameters SA, DA and ADDBA request Element, and a parameter indicating that a Multi-Link block acknowledgement protocol is established, where SA indicates a source address, DA indicates a destination address, ADDBA request Element indicates a block acknowledgement request parameter, ADDBA request Element includes parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, block Ack Parameter Set indicates a block acknowledgement operation parameter, block Ack Parameter Set includes a service data identifier TID, multi-Link Element is a parameter indicating that a Multi-Link block acknowledgement protocol is established, and is used to set multiple Link information included in the Multi-Link block acknowledgement protocol, and ADDBA Extension indicates 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, ADDBA response element represents a block acknowledgement response parameter, 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:

an initiator communication module one, configured to send an ADDBA request frame, where the ADDBA request frame includes parameters SA, DA, TA, RA and ADDBA request element, SA indicates a source address, DA indicates a destination address, TA indicates a sender address, RA indicates a receiver address, ADDBA request element indicates a block acknowledgement request parameter, ADDBA request element includes parameters Block Ack Parameter Set and ADDBA Extension, block Ack Parameter Set indicates a block acknowledgement operation parameter, block Ack Parameter Set includes an identifier TID of service data, ADDBA Extension indicates other parameters related to a block acknowledgement protocol, SA in the ADDBA request frame is set to an address of an initiator STA or an address of a multilink 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 multilink device to which the receiver STA belongs, TA in the ADDBA request frame is set to null or an address of the initiator STA to which the receiver STA belongs, and SA and DA values in the ADDBA request frame and DA are 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:

a receiver communication module one, configured to receive an ADDBA request frame, where the ADDBA request frame includes parameters SA, DA and ADDBA request Element, and a parameter indicating that a Multi-Link block acknowledgement protocol is established, where SA indicates a source address, DA indicates a destination address, ADDBA request Element indicates a block acknowledgement request parameter, ADDBA request Element includes parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, block Ack Parameter Set indicates a block acknowledgement operation parameter, block Ack Parameter Set includes a service data identifier TID, multi-Link Element is a parameter indicating that a Multi-Link block acknowledgement protocol is established, and is used to set multiple Link information included in the Multi-Link block acknowledgement protocol, and ADDBA Extension indicates other parameters related to the block acknowledgement protocol;

And a second receiver communication module, configured to send an ADDBA response frame, where the ADDBA response frame includes parameters SA, DA, and ADDBA response element, ADDBA response element indicates a block acknowledgement response parameter, and ADDBA response element includes a parameter Status code, where the Status code indicates 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:

a receiver communication module one, configured to receive an ADDBA request frame, where the ADDBA request frame includes parameters SA, DA, TA, RA and ADDBA request element, SA indicates a source address, DA indicates a destination address, TA indicates a sender address, RA indicates a receiver address, ADDBA request element indicates a block acknowledgement request parameter, ADDBA request element includes parameters Block Ack Parameter Set and ADDBA Extension, block Ack Parameter Set indicates a block acknowledgement operation parameter, block Ack Parameter Set includes an identifier TID of service data, ADDBA Extension indicates other parameters related to a block acknowledgement protocol, 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 the receiver STA or an address of the multi-link device to which the receiver STA belongs, TA in the ADDBA request frame is set to null or an address of the multi-link device to which the initiator STA belongs or an address of the initiator STA, and DA in the ADDBA request frame is set to null or an address of the multi-link device to which the receiver STA belongs, and DA values in the ADDBA request frame are different from SA and DA values;

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 section of program code, a code set, or an instruction set, and where the at least one instruction, at least one section of program code, code set, or instruction set is loaded and executed by the processor to implement a 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 connected by at least the initiator STA and the receiver STA in a communication manner, the initiator multi-link device is configured to implement a method for establishing a multi-link block acknowledgement protocol according to the first aspect or the second aspect, and the receiver multi-link device is configured to implement a method for establishing a multi-link block acknowledgement protocol according to the third aspect or the fourth aspect.

In an eleventh aspect, embodiments of the present invention provide 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 are loaded and executed by a processor to implement the method for multi-link block acknowledgement protocol setup according to any of the first to fourth aspects.

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

The method, the device, the system and the storage medium for establishing the multilink block acknowledgement protocol provide a flexible service data transmission mode, solve the problem of data loss and data repetition in a multilink operation scene and improve the network and data transmission efficiency.

Detailed Description

In order to better understand the technical solutions of the present invention, the following description will clearly and completely describe the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention. Furthermore, while the present disclosure has been described in terms of an exemplary embodiment or embodiments, it should be understood that each aspect of the disclosure may be separately implemented as a complete solution. The following embodiments and features of the embodiments may be combined with each other without conflict.

In embodiments of the invention, words such as "exemplary," "such as" and the like 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 use of an example is intended to present concepts in a concrete fashion.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one from another, and the corresponding terms may or may not have the same meaning. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items.

In the embodiment of the invention, the multilink device comprises a plurality of logic entities, each logic entity performs data transmission through a link, and each logic entity comprises an independent data receiving and transmitting 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 for each logical entity affiliated to the multi-link device, e.g., a multi-link device operates with 3 logical entities, then there are 4 MAC addresses on this physical device, one for the multi-link device and one for each of the three logical entities.

In the embodiment of the present invention, a logical entity of an initiator multilink device that transmits a block acknowledgement protocol request message is referred to as an initiator STA, and a logical entity of a peer multilink device (i.e., a receiver multilink device) that the initiator STA wants to establish a block acknowledgement protocol is referred to as a receiver STA. After the establishment of the block acknowledgement protocol is completed, the receiving state feedback of the data packet is performed between the initiator STA and the receiver STA in a block acknowledgement mode.

In the embodiment of the invention, a block acknowledgement mode of sharing a data packet receiving state on different links between the multi-link devices is called multi-link block acknowledgement, a block acknowledgement protocol established between the multi-link devices is called multi-link block acknowledgement protocol, and a plurality of logic entities on the multi-link devices share the same multi-link block acknowledgement protocol, that is, only one multi-link block acknowledgement protocol is established for the multi-link devices.

In the previous connection process, the devices of the two parties establishing the block acknowledgement protocol mutually acquire the address of the multilink device of the other party and the address of the logic entity affiliated to the multilink device. The multilink device maintains this information locally. Subsequently, a multilink block acknowledgement protocol setup 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 transmits an ADDBA request frame to the receiver STA, and parameters included in the ADDBA request frame are shown in table 1, for example.

TABLE 1

Among them, ADDBA request element is set as shown in table 2.

TABLE 2

Among them, the parameter Block Ack Parameter Set is set as shown in table 3.

TABLE 3 Table 3

For example, the parameter Multi-Link Element setting method includes the following steps:

1) As shown in table 4.

TABLE 4 Table 4

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

TABLE 5

Parameters (parameters)	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 The info setting is as in table 7 or table 8 or table 9, n being the total number of links sharing the same block acknowledgement protocol.

TABLE 7

Parameters (parameters)	Description of the invention
		Link ID	Identification of links

TABLE 8

Parameters (parameters)	Description of the invention
		S-STA Address	Address of initiator STA
D-STA Address	Address of receiver STA

TABLE 9

Optionally, the Multi-Link Element further includes a parameter MLE Type, where MLE Type indicates a Type of the Multi-Link Element. In this embodiment, the Multi-Link Element is configured in the following ways:

1) As shown in table 10.

Table 10

2) As shown in table 11.

TABLE 11

For example, the parameter ADDBA Extension setting may be as follows:

1) As shown in table 12.

Table 12

2) As shown in table 13.

TABLE 13

Examples of parameter SA, DA, TA, RA settings are as follows:

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

SA: setting as the address of the initiator STA;

DA: setting as the address of the receiver STA;

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

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

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

SA: setting the address of the multi-link equipment to which the initiator STA belongs;

DA: setting the address of the multi-link equipment to which the receiver STA belongs;

TA: setting as the address of the initiator STA;

RA: setting as the address of the receiver STA;

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

SA: setting as the address of the initiator STA;

DA: setting as the address of the receiver STA;

TA: setting the address of the multi-link equipment to which the initiator STA belongs;

RA: setting the address of the multi-link equipment to which the receiver STA belongs;

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

SA: setting as the address of the initiator STA;

DA: setting as the address of the receiver STA;

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

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

the establishment of the multilink block acknowledgment protocol is indicated by the inclusion of the parameter Multi-Link Element in the ADDBA request frame.

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

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

2.2 if the parameters Multi-Link Element are contained, judging whether links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value or not, and executing operation according to the judging result;

2.3 if the parameters TA and RA are contained and the parameters Multi-Link Element are not contained, if the RA is the address of the Multi-Link device to which the receiver STA belongs and the DA is the address of the receiver STA, or the RA is the address of the receiver STA and the DA is the address of the Multi-Link device to which the receiver STA belongs, checking a locally stored TID-Link mapping table, and including the 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 agreement to establish a block acknowledgement protocol, e.g., set to "SUCCESS"; if the request is not accepted, setting a Status code to indicate that the establishment of the block acknowledgement protocol is not agreed, for example, setting to "REFUSED", or setting the Status code to "SUCCESS", and including the parameter value supported by the Status code in the ADDBA response frame;

2.4 (this scenario is default that all links support all TIDs), if parameters TA and RA are included, checking if the value of RA or the value of DA is the address of the multi-link device to which the recipient STA belongs, if so, setting Status code indicates agreement to set up a block acknowledgement protocol, such as set to "SUCCESS", if the request is accepted; if the request is not accepted, the Status code is set to indicate that the establishment of the block acknowledgement protocol is not agreed, such as set to "REFUSED", or set to "SUCCESS", and the parameter values supported by itself are contained 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 corresponding Multi-Link device to which the initiator STA belongs by a logical entity in the Multi-Link Element of the Multi-Link device to which the receiver STA belongs.

The determining whether the links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value, and executing the operation according to the determination result includes:

An example of an addba response frame setting is shown in table 14.

TABLE 14

Among them, ADDBA response element is provided as example in table 15.

TABLE 15

Examples of parameter SA, DA, TA, RA settings are as follows:

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

SA: setting as the address of the receiver STA;

DA: setting as the address of the initiator STA;

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

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

2) Upon acknowledging the establishment of the multi-link block acknowledgment protocol,

SA: setting the address of the multi-link equipment to which the receiver STA belongs;

DA: setting the address of the multi-link equipment to which the initiator STA belongs;

TA: setting as the address of the receiver STA;

RA: setting as the address of the initiator STA;

3) Upon acknowledging the establishment of the multi-link block acknowledgment protocol,

SA: setting as the address of the receiver STA;

DA: setting as the address of the initiator STA;

TA: setting the address of the multi-link equipment to which the receiver STA belongs;

RA: setting the address of the multi-link equipment to which the initiator STA belongs;

4) Upon acknowledging the establishment of the multi-link block acknowledgment protocol,

SA: setting as the address of the receiver STA;

DA: setting as the address of the initiator STA;

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

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

the establishment of the Multi-Link block acknowledgement protocol is indicated by the inclusion of the parameter Multi-Link Element in the ADDBA response frame.

4. After receiving the ADDBA response frame by the initiator STA or other logical entity of the multi-link device to which the initiator STA belongs,

if the parameter Status code indicates agreement to establish the block acknowledgement protocol, performing a 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 agreed, the method operates in a normal data packet acknowledgement mode.

In the embodiment of the present invention, based on the same inventive concept as the method for establishing a multi-link block acknowledgement protocol, the embodiment of the present invention further provides a device for establishing a multi-link block acknowledgement protocol, where the device includes:

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

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

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

In addition, the 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 code set, or an instruction set is stored, where the at least one instruction, the at least one section of program code, the code set, or the instruction set is loaded and executed by a processor, so as to implement a method for establishing the multilink block acknowledgement protocol according to the foregoing embodiment.

It should be understood that, in various embodiments of the present invention, the sequence number of each process described above does not mean that the execution sequence of 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 functions and internal logic, and should not constitute any limitation on 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 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 will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed.

The modules described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over 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, each functional module in each embodiment of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more modules may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device or a terminal device, etc.) to perform 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) disk or optical disk, etc.

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 this application 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 or all possible combinations of one or more of the associated listed items. The character "/" herein generally indicates that the associated object is 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 detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of multi-link block acknowledgement protocol establishment, the method comprising:

transmitting an ADDBA request frame, where the ADDBA request frame includes parameters SA and DA or SA, DA, TA and RA, and ADDBA request element, where 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 includes parameters Block Ack Parameter Set and ADDBA Extension, where Block Ack Parameter Set represents a block acknowledgement operation parameter, block Ack Parameter Set includes an identifier TID of service data, ADDBA Extension represents other parameters related to a block acknowledgement protocol, and when SA, DA, TA and RA in the ADDBA request frame are set to an address of an initiator STA, an address of a receiver STA, an address of a multilink device to which the initiator STA belongs, and an address of a multilink device to which the receiver STA belongs, or set to an address of a multilink device to which the receiver STA belongs, an address of the initiator STA, and an address of the receiver STA, respectively, the establishment of the multilink block acknowledgement protocol is indicated; when SA and DA in the ADDBA request frame are set as the address of the initiator STA and the address of the receiver STA respectively, and TA and RA are not contained in the ADDBA request frame or are set as empty, the establishment of a single link block acknowledgement protocol is indicated;

An ADDBA response frame is received, where the ADDBA response frame includes parameters SA, DA, and ADDBA response element, where ADDBA response element indicates a block acknowledgement response parameter, and ADDBA response element includes a parameter Status code, where Status code indicates a block acknowledgement protocol establishment result. .

2. The method for establishing a Multi-Link block acknowledgement protocol according to claim 1, wherein the ADDBA request Element further comprises a parameter Multi-Link Element, and the Multi-Link Element is used for setting the plurality of Link information included in the Multi-Link block acknowledgement protocol.

3. The method according to claim 1, wherein the ADDBA response frame further comprises parameters TA and RA, wherein TA represents a sender address, RA represents a receiver address, SA, DA, TA and RA in the ADDBA response frame are respectively set to an address of a receiver STA, an address of an initiator STA, null and null, or respectively set to an address of a multilink device to which the receiver STA belongs, an address of a multilink device to which the initiator STA belongs, an address of a receiver STA and an address of an initiator STA, or respectively set to an address of a receiver STA, an address of an initiator STA, an address of a multilink device to which the receiver STA belongs, and an address of a multilink device to which the initiator STA belongs.

4. The method of claim 1, wherein ADDBA response Element further comprises a parameter Block Ack Parameter Set, a Multi-Link Element and an ADDBA Extension, wherein Block Ack Parameter Set represents a block acknowledgment operation parameter, the Multi-Link Element is used to set a plurality of Link information contained in the Multi-Link block acknowledgment protocol, and the ADDBA Extension represents other parameters related to the block acknowledgment protocol.

5. The method of claim 2, wherein the Multi-Link Element includes a parameter STAi info or Linki info, the STAi info includes a parameter Center-f and a parameter STA Address, the Linki info includes a parameter Link ID and/or a parameter S-STA Address and D-STA Address, wherein Center-f indicates a Center frequency of a Link where a logical entity is located, STA Address indicates an Address or an identifier of the logical entity, link ID indicates an identifier of the Link, S-STA Address indicates an Address of an initiator STA, D-STA Address indicates an Address of a receiver STA, and n is a total number of links sharing the same block acknowledgement protocol.

6. The method of claim 1, wherein the ADDBA Extension includes parameters No-fragments and Receive status on all link or parameters No-fragments and Receive status on one link, wherein No-fragments indicate whether a packet is fragmented, receive status on all link indicates whether all requested links transmit BA frames, each BA frame transmitted on each link includes a packet receive status on all links, receive status on one link indicates whether BA frames are transmitted on only one link, and each BA frame transmitted on that link includes a packet receive status on all links.

7. The method of claim 6, wherein if the ADDBA Extension includes a parameter Receive status on one link, and 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 packet reception status on all links, the BA frame is sent on the link that receives both the ADDBA request frame and the ADDBA response frame.

8. The method of claim 6, wherein if the ADDBA Extension includes a parameter Receive status on one link, and Receive status on one link is set to indicate that only BA frames are sent on one link, and the BA frames sent on that link include packet reception status on all links, the multi-link device to which the recipient STA belongs decides to send the BA frames.

9. The method of claim 1, wherein the method further comprises:

the address of the peer-to-peer multi-link device and the address of the logical entity affiliated to the peer-to-peer multi-link device are obtained and stored locally.

10. The method for establishing a Multi-Link block acknowledgement protocol according to claim 5, wherein the Multi-Link Element includes a parameter MLE Type, wherein the MLE Type indicates a Type of the Multi-Link Element.

11. A method of multi-link block acknowledgement protocol establishment, the method comprising:

receiving an ADDBA request frame, where the ADDBA request frame includes parameters SA and DA or SA, DA, TA and RA, and ADDBA request element, where 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 includes parameters Block Ack Parameter Set and ADDBA Extension, where Block Ack Parameter Set represents a block acknowledgement operation parameter, block Ack Parameter Set includes an identifier TID of service data, ADDBA Extension represents other parameters related to a block acknowledgement protocol, and when SA, DA, TA and RA in the ADDBA request frame are set to an address of an initiator STA, an address of a receiver STA, an address of a multilink device to which the initiator STA belongs, and an address of a multilink device to which the receiver STA belongs, or set to an address of a multilink device to which the receiver STA belongs, an address of the initiator STA, and an address of the receiver STA, respectively, the establishment of the multilink block acknowledgement protocol is indicated; when SA and DA in the ADDBA request frame are set as the address of the initiator STA and the address of the receiver STA respectively, and TA and RA are not contained in the ADDBA request frame or are set as empty, the establishment of a single link block acknowledgement protocol is indicated;

12. The method for establishing a Multi-Link block acknowledgement protocol according to claim 11, wherein the ADDBA request Element further comprises a parameter Multi-Link Element, and the Multi-Link Element is used for setting the plurality of Link information included in the Multi-Link block acknowledgement protocol.

13. The method according to claim 11, wherein the ADDBA response frame further comprises parameters TA and RA, wherein TA represents a sender address, RA represents a receiver address, SA, DA, TA and RA in the ADDBA response frame are respectively set to an address of a receiver STA, an address of an initiator STA, null and null, or respectively set to an address of a multi-link device to which the receiver STA belongs, an address of a multi-link device to which the initiator STA belongs, an address of a receiver STA and an address of an initiator STA, or respectively set to an address of a receiver STA, an address of an initiator STA, an address of a multi-link device to which the receiver STA belongs, and an address of a multi-link device to which the initiator STA belongs.

14. The method of claim 11, wherein ADDBA response Element further comprises parameters Block Ack Parameter Set, multi-Link Element and ADDBA Extension, wherein Block Ack Parameter Set represents block acknowledgement operation parameters, multi-Link Element is used to set multiple Link information included in the Multi-Link block acknowledgement protocol, and ADDBA Extension is used to set other parameters related to the block acknowledgement protocol.

15. The method of claim 12, wherein a Multi-Link Element includes a parameter STAi info or Linki info, the STAi info includes a parameter Center-f and a parameter STA Address, the Linki info includes a parameter Link ID and/or a parameter S-STA Address and D-STA Address, wherein Center-f indicates a Center frequency of a Link where a logical entity is located, STA Address indicates an Address or an identifier of the logical entity, link ID indicates an identifier of the Link, S-STA Address indicates an Address of an initiator STA, D-STA Address indicates an Address of a receiver STA, and n is a total number of links sharing the same block acknowledgement protocol.

16. The method of claim 11, wherein the ADDBA Extension includes parameters No-fragments and Receive status on all link or parameters No-fragments and Receive status on one link, wherein No-fragments indicate whether a packet is fragmented, receive status on all link indicates whether all requested links transmit BA frames, each BA frame transmitted on each link includes a packet receive status on all links, receive status on one link indicates whether BA frames are transmitted on only one link, and each BA frame transmitted on that link includes a packet receive status on all links.

17. The method of claim 16, wherein if the ADDBA Extension includes a parameter Receive status on one link, and 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 packet reception status on all links, the BA frame is sent on the link that receives the ADDBA request frame and the ADDBA response frame.

18. The method of claim 16, wherein if the ADDBA Extension includes a parameter Receive status on one link, and Receive status on one link is set to indicate that only BA frames are sent on one link, and the BA frames sent on that link include packet reception status on all links, the multi-link device to which the recipient STA belongs decides to send the BA frames.

19. The method of claim 11, wherein after receiving an ADDBA request frame and before sending an ADDBA response frame, the method further comprises:

20. The method of claim 11, wherein after receiving an ADDBA request frame and before sending an ADDBA response frame, the method further comprises:

21. The method as set forth in claim 19, wherein the determining whether the links indicated by the Multi-Link Element of the ADDBA request frame support the received parameter TID value, and performing the operation according to the determination result comprises:

22. The method of claim 11, wherein after receiving an ADDBA request frame and before sending an ADDBA response frame, the method further comprises:

and selecting one logic entity from the logic entities of the Multi-Link device to which the receiver STA indicated in the Multi-Link Element belongs to send an ADDBA response frame.

23. The method of claim 11, wherein the method further comprises:

24. The method for establishing a Multi-Link block acknowledgement protocol according to claim 15, wherein the Multi-Link Element further comprises a parameter MLE Type, wherein the MLE Type indicates a Type of the Multi-Link Element.

25. An apparatus for multi-link block acknowledgment protocol establishment, the apparatus comprising:

an initiator communication module one, configured to send an ADDBA request frame, where the ADDBA request frame includes parameters SA and DA or SA, DA, TA and RA, and ADDBA request element, where 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 includes parameters Block Ack Parameter Set and ADDBA Extension, block Ack Parameter Set represents a block acknowledgement operation parameter, block Ack Parameter Set includes a service data identifier TID, and ADDBA Extension represents other parameters related to a block acknowledgement protocol, and when SA, DA, TA and RA in the ADDBA request frame are set to an address of an initiator STA, an address of a receiver STA, an address of a multilink device to which the initiator STA belongs, and an address of a multilink device to which the receiver STA belongs, or are set to an address of a multilink device to which the initiator STA belongs, an address of the initiator STA, and an address of the receiver STA, respectively, an instruction is set to establish a multilink block acknowledgement protocol; when SA and DA in the ADDBA request frame are set as the address of the initiator STA and the address of the receiver STA respectively, and TA and RA are not contained in the ADDBA request frame or are set as empty, the establishment of a single link block acknowledgement protocol is indicated;

26. An apparatus for multi-link block acknowledgment protocol establishment, the apparatus comprising:

a receiver communication module one, configured to receive an ADDBA request frame, where the ADDBA request frame includes parameters SA and DA or SA, DA, TA and RA, and ADDBA request element, where 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 includes parameters Block Ack Parameter Set and ADDBA Extension, block Ack Parameter Set represents a block acknowledgement operation parameter, block Ack Parameter Set includes a service data identifier TID, and ADDBA Extension represents other parameters related to a block acknowledgement protocol, and when SA, DA, TA and RA in the ADDBA request frame are set to an address of an initiator STA, an address of a receiver STA, an address of a multilink device to which the initiator STA belongs, and an address of a multilink device to which the receiver STA belongs, or are set to an address of a multilink device to which the initiator STA belongs, an address of the initiator STA, and an address of the receiver STA, respectively, an instruction is given to establish a multilink block acknowledgement protocol; when SA and DA in the ADDBA request frame are set as the address of the initiator STA and the address of the receiver STA respectively, and TA and RA are not contained in the ADDBA request frame or are set as empty, the establishment of a single link block acknowledgement protocol is indicated;

27. An apparatus for multi-link block acknowledgement protocol setup, the apparatus comprising a processor and a memory having stored therein at least one instruction, at least one piece of program code, code set or instruction set, the at least one instruction, at least one piece of program code, code set or instruction set being loaded and executed by the processor to implement the method for multi-link block acknowledgement protocol setup of any of claims 1-24.

28. A system for establishing a multi-link block acknowledgement protocol, the system comprising an initiator multi-link device and a receiver multi-link device, the initiator multi-link device comprising an initiator STA and the receiver multi-link device comprising a receiver STA, the initiator multi-link device and the receiver multi-link device being communicatively connected at least by the initiator STA and the receiver STA, the initiator multi-link device being configured to implement the method for establishing a multi-link block acknowledgement protocol according to claim 1, and the receiver multi-link device being configured to implement the method for establishing a multi-link block acknowledgement protocol according to claim 11.

29. A computer readable storage medium having stored therein at least one instruction, at least one piece of program code, code set, or instruction set, loaded and executed by a processor, to implement the method of multi-link block acknowledgment protocol setup of any of claims 1-24.