WO2014135074A1

WO2014135074A1 - Communication method, device and system in wireless local area network

Info

Publication number: WO2014135074A1
Application number: PCT/CN2014/072881
Authority: WO
Inventors: 树贵明; 丁志明; 陆苏
Original assignee: 华为终端有限公司
Priority date: 2013-03-05
Filing date: 2014-03-05
Publication date: 2014-09-12
Also published as: CN104038989B; CN104038989A

Abstract

Disclosed are a communication method, device and system in a wireless local area network (WLAN), the method comprising: acquiring the association identifier allocated by an access point (AP) to a station (STA); and establishing a corresponding relationship between the address information of the STA and the association identifier, so as to provide relay communication service for the STA and the AP according to the corresponding relationship. The communication method in a WLAN of an embodiment of the present invention provides relay communication service between an STA and an AP via a relay device, and the AP uniformly allocates an association identifier to the STA, such that each relay device does not have to respectively allocate an association identifier to the STA managed by the relay device, thus avoiding conflicts between the association identifiers of the STAs in the basic service set of the AP, thereby facilitating subsequent communication between the AP and the STA, and improving communication efficiency.

Description

The present application claims priority to Chinese Patent Application No. 201310069649.4, filed on March 5, 2013, the entire disclosure of which is hereby incorporated by reference. TECHNICAL FIELD Embodiments of the present invention relate to the field of communications, and more particularly, to a method, apparatus, and system for communicating in a wireless local area network. BACKGROUND In a wireless local area network (WLAN), an area covered by an access point is called a basic service set (Basic Service Set, referred to as "BSS"), and multiple sites in the BSS ( A station (referred to as "STA") is associated with a corresponding AP, and multiple STAs in the BSS and the corresponding AP work on the same Wireless Fidelity ("WiFi") channel. In order to enable STAs in the WLAN to enter a dormant state (doze) to save power when data transmission is not required, and when the AP has data to be sent to the STA, the STA can be in an awake state to receive the AP. The data, the 802.11 standard defines a power saving transmission mechanism: Traffic Indication Ma (TIM) mechanism.

In the TIM mechanism, the AP periodically sends a beacon message to the STA, where the beacon message carries the TIM information, and the TIM information includes an Association Identifier (AID) corresponding to a group of STAs. A set of binary indicator bits. The STA operating in the Power Save (PS) mode is awake at the time when the AP sends the beacon message and receives the beacon message sent by the AP. When the AP has the buffered downlink data to be sent to the STA, the AP sets the binary position corresponding to the STA's AID in the TIM information carried in the beacon message to "1", and the STA finds the corresponding bit in the TIM information. "1", then it is in the awake state and uses the competition mechanism to send a PS-Poll message to the AP, triggering the AP to send the buffered data to itself, otherwise the STA enters the sleep state after receiving the beacon message. . After receiving the PS-Poll message, the AP sends the buffered data of the STA to the STA.

Currently, the 802.11ah working group in the Institute of Electrical and Electronic Engineers ('ΊΕΕΕ') has extended the coverage of APs from around 100 meters to 1000 for the application scenarios of sensor networks. M, and proposed to support the relay function in the coverage area of an AP, however, when the relay device providing the relay communication function is added to the wireless local area network communication system, how the relay device provides the AP and the station It is still unclear following the communication service. Further, it is still unclear how to implement the TIM mechanism in the wireless local area network where the relay device is added. Summary of the invention

Embodiments of the present invention provide a method, apparatus, and system for performing communication in a wireless local area network, which can better provide a relay communication service between a station and an access point AP through a relay device.

The first aspect provides a method for performing communication in a wireless local area network, including: acquiring an association identifier allocated by an access point AP for a site; establishing a correspondence between the address information of the site and the association identifier, according to the correspondence The relationship provides a relay communication service for the site and the AP.

With reference to the first aspect, in a first possible implementation manner, before the acquiring an access point AP is an association identifier allocated by the site, the method further includes: receiving request information sent by the site, where the request information is used to request the The AP allocates the association identifier to the AP, and sends the request information to the AP, so that the AP allocates the association identifier to the site according to the request information, and receives the response information sent by the AP, where the response information includes the association that the AP allocates for the site. Identification; sends the response to the site.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the acquiring an AP is an association identifier allocated by the station, including: obtaining, by using the response information, the associated identifier that is allocated by the AP .

With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner, the acquiring an AP, the associated identifier that is allocated by the station, includes: receiving the AP-distributed Associated ID.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a fourth possible implementation manner, the acquiring an AP, the associated identifier that is allocated by the AP, includes: receiving the AP-distributed AP sent by the AP Associated ID.

With reference to any one of the possible implementation manners of the first to fourth possible implementations of the first aspect, in a fifth possible implementation, the method further includes: receiving the first broadcast message sent by the AP The data carried in the first broadcast message indicates that the binary bit corresponding to the association identifier in the TIM information is the first value. According to the first broadcast message, determining that the downlink data of the station exists in the AP.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation, the method further includes: receiving downlink data of the station sent by the AP; buffering downlink data of the station; and sending the TIM information The second broadcast message, the binary bit corresponding to the association identifier in the TIM information carried in the second broadcast message is a first value, to indicate that downlink data of the station exists in the relay device.

With reference to the sixth possible implementation of the first aspect, in a seventh possible implementation, the data transmission trigger message sent by the station according to the second broadcast message is received, where the second data transmission trigger message is used to request the The relay device sends the downlink data of the station; according to the data transmission trigger message, the downlink data of the station is sent to the station.

With reference to any one of the possible implementations of the fifth to the seventh possible implementations of the first aspect, in an eighth possible implementation, the method further includes: when the station does not exist in the relay device Transmitting a third broadcast message carrying TIM information, the third broadcast The binary bit corresponding to the association identifier in the TIM information carried in the message is the second value.

In a second aspect, a method for communicating in a wireless local area network is provided, including: sending, by using a relay device, request information to an AP associated with the relay device, where the request information is used to request the

The AP allocates an association identifier to the site; and receives response information sent by the AP through the relay device, where the response information includes an association identifier that is allocated by the AP to the site.

With reference to the second aspect, in a first possible implementation, the method further includes: sending, by the relay device, the association identifier that is allocated by the AP, so that the relay device establishes address information of the site and the associated identifier The correspondence between the two provides a relay communication service between the site and the AP according to the correspondence.

With reference to the second aspect or the first possible implementation of the second aspect, in a second possible implementation, the method further includes: receiving a broadcast message of the carried data indication table TIM information sent by the relay device And the binary bit corresponding to the associated identifier in the TIM information is a first value; according to the broadcast message, sending a data transmission trigger message to the relay device, where the data transmission trigger message is used to request the relay device to send the middle And downlink data of the station that is buffered by the device; receiving downlink data of the station that is sent by the relay device according to the data transmission trigger message.

The third aspect provides a method for performing communication in a wireless local area network, including: receiving, by the station, request information sent by the relay device, where the request information is used to request the access point AP to allocate an association identifier to the station; Information, the association identifier is assigned to the site; the response information is sent to the site by the relay device, and the response information includes the association identifier.

With reference to the third aspect, in a first possible implementation manner, the method further includes: sending, by the relay device, the association identifier that is allocated by the AP, so that the relay device establishes address information of the site and the associated identifier The correspondence between the two provides a relay communication service between the site and the AP according to the correspondence.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the method further includes: sending, when the downlink data of the station exists in the AP, sending a carrying data indication table a broadcast message of the TIM information, the binary bit corresponding to the association identifier in the TIM information is a first value; receiving a data transmission trigger message sent by the relay device according to the broadcast message, where the data transmission trigger message is used to request the AP Sending downlink data of the station; sending downlink data of the station to the relay device according to the data transmission trigger message.

The fourth aspect provides a relay device in a wireless local area network, including: an acquiring module, configured to acquire an association identifier allocated by an access point AP for a site; and an establishing module, configured to establish address information of the site and the acquiring module Obtaining a correspondence between the association identifiers to provide a relay communication service for the site and the AP according to the correspondence.

With reference to the fourth aspect, in a first possible implementation manner, the relay device further includes: a first receiving module, configured to receive request information sent by the site before the acquiring module acquires an association identifier allocated by the AP for the site The request information is used to request the AP to allocate an association identifier to the site. The first sending module is configured to send the request information received by the first receiving module to the AP, so that the AP allocates an association to the site according to the request information. The first receiving module is further configured to receive response information sent by the AP, where the response information includes that the AP sends the response according to the first sending module. The request information sent is an association identifier assigned by the station; the first sending module is further configured to send the response information received by the first receiving module to the station.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation, the acquiring module is specifically configured to obtain the association identifier allocated by the AP from the response information.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a third possible implementation, the acquiring module includes: a receiving unit, configured to receive the association identifier that is sent by the AP sent by the station .

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a fourth possible implementation, the acquiring module includes: a receiving unit, configured to receive, by the AP, the associated identifier that is allocated by the AP .

With reference to any one of the possible implementations of the first to fourth possible implementations of the fourth aspect, in a fifth possible implementation, the relay device further includes: a second receiving module, configured to: Receiving a first broadcast message sent by the AP, where a binary bit corresponding to the associated identifier in the TIM information carried in the first broadcast message is a first value, and a determining module, configured to receive, according to the second receiving module, the first broadcast message A broadcast message determines the presence of downlink data for the site in the AP.

With the fifth possible implementation of the fourth aspect, in a sixth possible implementation, the second receiving module is further configured to receive downlink data of the site sent by the AP, where the relay device further includes: a module, configured to cache downlink data of the station that is received by the second receiving module, and a second sending module, configured to send a second broadcast message that carries the TIM information, where the TIM information carried in the second broadcast message is associated with the associated identifier The corresponding binary bit is the first value to indicate that the downlink data of the station exists in the relay device.

With the sixth possible implementation of the fourth aspect, in a seventh possible implementation, the second receiving module is further configured to receive a data transmission trigger message sent by the station according to the second broadcast message, where the data is transmitted The triggering message is used to request the relay device to send downlink data of the station; the second sending module is further configured to send downlink data of the station to the station according to the data transmission trigger message received by the second receiving module.

With reference to any one of the possible implementations of the fifth to the seventh possible implementations of the fourth aspect, in the eighth possible implementation, the second sending module is further configured to be used in the relay device When there is no downlink data of the site, the third broadcast message carrying the TIM information is sent, and the binary bit corresponding to the association identifier in the TIM information carried in the third broadcast message is the second value.

The fifth aspect provides a station, including: a sending module, configured to send, by using a relay device, request information to an AP associated with the relay device, where the request information is used to request the AP to allocate an association identifier to the station; And receiving the response information sent by the AP by the relay device, where the response information includes an association identifier allocated by the AP to the site according to the request information sent by the sending module.

With reference to the fifth aspect, in a first possible implementation manner, the sending module is further configured to send the association identifier that is allocated by the AP to the relay device, so that the relay device establishes address information of the site and the association identifier Correspondence between the corresponding relationship at the site and the AP Provide relay communication services.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation, the receiving module is further configured to receive a broadcast of the carried data indication table TIM information sent by the relay device. a message, the binary bit corresponding to the association identifier in the TIM information is a first value; the sending module is further configured to send a data transmission trigger message to the relay device according to the broadcast message received by the receiving module, where the data transmission is The triggering message is used to request the relay device to send the downlink data of the site buffered by the relay device; the receiving module is further configured to receive the downlink of the site sent by the relay device according to the data transmission trigger message sent by the sending module data.

According to a sixth aspect, a wireless access point AP is provided, including: a receiving module, configured to receive request information sent by a station by using a relay device, where the request information is used to request an access point AP to allocate an association identifier to the station; a module, configured to allocate an association identifier to the site according to the request information received by the receiving module, and a sending module, configured to send, by using the relay device, response information to the site, where the response information includes the association identifier allocated by the allocation module .

With reference to the sixth aspect, in a first possible implementation, the sending module is further configured to send the association identifier that is allocated by the allocation module to the relay device, so that the relay device establishes address information of the site and the association The correspondence between the identifiers and the corresponding relationship provides a relay communication service between the site and the AP.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the sending module is further configured to: when the downlink data of the site exists in the AP, send a carrying data indication a broadcast message of the TIM information, the binary bit corresponding to the association identifier in the TIM information is a first value; the receiving module is further configured to receive a data transmission trigger sent by the relay device according to the broadcast message sent by the sending module The data transmission triggering message is used to request the AP to send the downlink data of the station; the sending module is further configured to send the downlink data of the station to the relay device according to the data transmission trigger message received by the receiving module.

According to a seventh aspect, a wireless local area network system is provided, including: any one of the first to eighth possible relay devices of the fourth aspect or the fourth aspect, the fifth aspect or the fifth Any one of the first or second possible wireless stations of the aspect, the sixth or the first or second possible wireless access point AP of the sixth aspect.

Therefore, the method for performing communication in the wireless local area network according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the station, thereby avoiding each of the The device assigns an association identifier to the site managed by the device, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication. effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention or the description of the prior art will be briefly described below. Obviously, the following The drawings described are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic flow diagram of a method of communicating in a wireless local area network in accordance with an embodiment of the present invention.

2 is another schematic flowchart of a method of communicating in a wireless local area network according to an embodiment of the present invention.

3 is still another schematic flow chart of a method of communicating in a wireless local area network according to an embodiment of the present invention.

4 is still another schematic flow chart of a method of communicating in a wireless local area network according to an embodiment of the present invention.

FIG. 5 is still another schematic flowchart of a method of communicating in a wireless local area network according to an embodiment of the present invention.

6 is a schematic flow chart of a method of communicating in a wireless local area network according to another embodiment of the present invention.

FIG. 7 is a schematic flow chart of a method of communicating in a wireless local area network according to still another embodiment of the present invention.

FIG. 8 is a schematic block diagram of a relay device in a wireless local area network according to an embodiment of the present invention. Figure. Figure.

11 is a schematic block diagram of a station in accordance with an embodiment of the present invention.

Figure 12 is a schematic block diagram of a wireless access point AP in accordance with an embodiment of the present invention.

Figure 13 is a schematic block diagram of a wireless local area network WLAN system in accordance with an embodiment of the present invention. FIG. 14 is a schematic block diagram of a relay device in a wireless local area network according to another embodiment of the present invention.

Figure 15 is a schematic block diagram of a station in accordance with another embodiment of the present invention.

FIG. 16 is a schematic block diagram of a wireless access point AP according to another embodiment of the present invention.

Figure 17 is a schematic block diagram of a wireless local area network WLAN system in accordance with another embodiment of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. . All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

It should be understood that the technical solution of the embodiment of the present invention is a WLAN communication system using WIFI technology. The system is described as an example, but the technical solution of the embodiment of the present invention can be applied to various communication systems, for example: Global System of Mobile communication (referred to as

"GSM") system, Code Division Multiple Access ("CDMA") system, Wideband Code Division Multiple Access (referred to as

"WCDMA" system, General Packet Radio Service ("GPRS"), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (referred to as "Frequency Division Duplex") "FDD" system, LTE Time Division Duplex ("TDD"), universal mobile communication system

(Universal Mobile Telecommunication System, referred to as "UMTS"), Worldwide Interoperability for Microwave Access (referred to as

"WiMAX") communication system, etc.

It should also be understood that, in the embodiment of the present invention, the site may be a user equipment (User Equipment, referred to as "UE"), a terminal (terminal), and a mobile station (Mobile Station, referred to as "MS") that support the WIFI communication protocol. ), a mobile terminal (Mobile Terminal), etc., the station can communicate with one or more core networks via a Radio Access Network (RAN), for example, the station can be a mobile phone (or "Cellular" telephones, computers with mobile terminals, etc., for example, the stations may also be portable, pocket, handheld, computer built-in or in-vehicle mobile devices that exchange voice and/or data with the wireless access network.

It should also be understood that, in the embodiment of the present invention, the AP may provide an access service for the station, and the AP may be an access point in the WiFi, or may be a base station in the GSM or CDMA (Base Transceiver Station, referred to as "BTS"). The present invention is not limited to the base station (NodeB) in WCDMA, and may be an evolved Node B ("eNB" or "e-NodeB") in the LTE.

1 is a schematic flowchart of a method 100 for performing communication in a wireless local area network according to an embodiment of the present invention. The method 100 may be performed by a relay device. As shown in FIG. 1, the method 100 includes:

S110. Acquire an association identifier that is allocated by the AP to the AP.

S120. Establish a correspondence between the address information of the site and the association identifier, to provide a relay communication service for the site and the AP according to the correspondence.

Therefore, the method for performing communication in the wireless local area network according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the station, thereby avoiding each of the The device assigns an association identifier to the site managed by the device, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication. effectiveness.

In this embodiment of the present invention, the AP may be an AP that is associated with the relay device, and the site may be a site that receives a broadcast message periodically sent by the relay device. The AP allocates an association identifier to the site, and the relay device acquires the association identifier, and establishes a corresponding relationship between the association identifier and the address information of the site, for example, Media Access Control (referred to as "Media Access Control"MAC") address information, according to the correspondence for the AP and the site Provide relay communication services.

Optionally, the relay device may first associate with the AP, and periodically send a broadcast message, where the broadcast message carries information about the relay device and the AP, for example, address information and identification information, etc., and the station receives After the broadcast message sent by the relay device, the relay device may send the request information to the AP, where the request information is used to request the AP to allocate an association identifier to the site, and optionally, the request information may be carried at the site. In the association request message, the association request message may carry the address or identification information of the site, the address or identification information of the relay device, and the address or identification information of the AP, where the address or identification information of the site may serve as the association. The source address information of the request message, the address or the identification information of the relay device can be used as the receiving address information, and the address or the identification information of the AP can be used as the target address information. After receiving the association request message sent by the STA, the relay device may send the request information carried in the association request message to the AP according to the target address information in the association request message. Optionally, the association request message may not carry the address or the identifier information of the AP, but preset the relay device to send the request information to the AP that is associated with the relay device, but the embodiment of the present invention Not limited to this.

Optionally, the request information may also be used to request the AP to provide a specific type of service service for the site, and after receiving the request information, the AP determines that it can provide this type of service service for the site, and can accept the site. Requesting, and assigning an association identifier to the site, and sending, by the relay device, response information including the association identifier to the site, where, optionally, the AP may send the response information in the association response message. The association response message may carry the address or identification information of the relay device as the received address information and the address or identification information carrying the site as the target address information. The relay device may send the response information to the site according to the target address information in the association request message. Optionally, the association response message may further carry the address information of the AP as the source address information, but the embodiment of the present invention Not limited to this.

In an embodiment of the present invention, an AP may be associated with at least one relay device, the one AP may also be associated with at least one site, and one relay device may provide relay communication service for at least one site, but the present invention The embodiment is not limited to this.

Optionally, as shown in FIG. 2, before S110, the method 100 further includes:

S130. Receive request information sent by the station, where the request information is used to request the AP to allocate an association identifier to the site.

S135. Send the request information to the AP, so that the AP allocates an association identifier to the site according to the request information.

S140: Receive response information sent by the AP, where the response information includes an association identifier that is allocated by the AP to the site.

S145. Send the response information to the site.

The relay device may obtain the association identifier in multiple manners. Optionally, the relay device may obtain the association identifier from the response message by parsing the response information; the relay device may also receive the site or the AP. The associated identifier is sent, but the embodiment of the present invention is not limited thereto.

Optionally, the S110 is configured to obtain the association identifier that is allocated by the AP to the site, and the method includes: S111. Acquire, from the response information, the association identifier that is allocated by the AP. Optionally, in another embodiment, S110, acquiring the association identifier that is allocated by the AP to the site, including:

S112: Receive the association identifier of the AP that is sent by the station.

Optionally, in another embodiment, S110, acquiring the association identifier that the AP allocates to the site, including:

5113. Receive the association identifier of the AP that is sent by the AP.

Optionally, as another embodiment, when the site associated with the AP is in the power saving mode of the TIM mechanism, the AP periodically sends the first broadcast message at intervals of the first period, for example, a beacon message. The first broadcast message carries the TIM information to indicate whether the AP caches downlink data of each station that it serves. Correspondingly, the relay device periodically receives the first broadcast message sent by the AP at an interval of any multiple of the first period. When the AP caches downlink data of a certain site, the AP may set a binary bit corresponding to the association identifier of the site to a first value in the TIM information carried by the first broadcast message, to indicate the AP. The downlink data of the site is cached, and the first broadcast message is broadcast to all the relay devices that are associated with the AP, where the first value may be 1 or 0. After receiving the first broadcast message, the relay device finds that the binary bit corresponding to the associated identifier of the site is the first value, and determines that the AP caches downlink data of the site served by the relay device. Accordingly, as shown in FIG. 3, the method 100 further includes:

S150: Receive a first broadcast message sent by the AP, where a binary bit corresponding to the associated identifier in the data indication table TIM information carried in the first broadcast message is a first value;

S155. Determine, according to the first broadcast message, downlink data of the station in the AP. The relay device may send a first data transmission trigger message to the AP, for example, a PS-Poll message, requesting the AP to send downlink data of the station to the relay device. The AP may send downlink data of the station to the relay device according to the received first data transmission trigger message sent by the relay device, and the relay device receives downlink data of the station and buffers the downlink data. In addition, the relay device periodically sends the second broadcast message at intervals of the second period; correspondingly, the station served by the relay device receives the medium periodically at an interval of any integer multiple of the second period. The second broadcast message sent by the device. The second period may be greater than the first period, so that the station served by the relay device can sleep for a longer period of time, and the downlink data of the station does not occupy the storage space of the AP too much. The relay device may set a binary bit corresponding to the association identifier of a certain site to a first value in the TIM information carried by the second broadcast message, to indicate that the downlink data of the site exists in the relay device; The bit corresponding to the association identifier of a certain site is set to a second value in the TIM information carried by the second broadcast message to indicate that the downlink data of the site does not exist in the relay device. The first value may be 0, the second value is 1; or the first value is 1 and the second value is 0, but the embodiment of the present invention is not limited thereto.

Optionally, as shown in FIG. 4, the method 100 further includes:

S160. Receive downlink data of the station sent by the AP.

S165, buffering downlink data of the site; S170: Send a second broadcast message that carries the TIM information, where a binary bit corresponding to the association identifier in the TIM information carried in the second broadcast message is a first value, to indicate that downlink data of the station exists in the relay device.

After receiving the second broadcast message, the station finds that the relay device caches downlink data of the station, and the station may send a second data transmission trigger message, for example, a PS-Poll message, to the relay device to request The relay device sends the downlink data to the station. The relay device receives the second data transmission trigger message, and may send the downlink data to the station. Accordingly, as shown in FIG. 5, the method 100 further includes:

S175, receiving a data transmission trigger message sent by the station according to the second broadcast message, where the second data transmission trigger message is used to request the relay device to send downlink data of the station;

S180. Send, according to the data transmission trigger message, downlink data of the station to the station. Optionally, as another embodiment, the method 100 further includes:

S185. When the downlink data of the station does not exist in the relay device, send a third broadcast message that carries the TIM information, where a binary bit corresponding to the association identifier in the TIM information carried in the third broadcast message is a second value.

Therefore, the method for performing communication in the wireless local area network according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the station, thereby avoiding each of the The device assigns an association identifier to the site managed by the device, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication. effectiveness. Further, in the TIM mechanism, the relay device and the AP may indicate, according to the association identifier, whether downlink data of the site exists, and the relay device may receive and cache downlink data of the site sent by the AP, so that the site may Sleeping longer, further saving the site's power consumption.

1 to 5, a method for performing communication in a wireless local area network according to an embodiment of the present invention is described in detail from the perspective of a relay device. The following will be taken from the perspective of the station and the access point AP, respectively, in conjunction with FIG. 6 and FIG. A method of performing communication in a wireless local area network according to an embodiment of the present invention is described in detail.

FIG. 6 is a schematic flowchart of a method 200 for performing communication in a wireless local area network according to another embodiment of the present invention. The method may be performed by a station. As shown in FIG. 5, the method 200 includes:

S210. Send, by using a relay device, request information to an AP associated with the relay device, where the request information is used to request the AP to allocate an association identifier to the station.

S220: Receive response information sent by the AP by using the relay device, where the response information includes an association identifier that is allocated by the AP to the station.

Optionally, the site may also send an association identifier obtained from the response information to the middle Following the device, the method 200 further includes:

S230, the association identifier that is allocated by the AP is sent to the relay device, so that the relay device establishes a correspondence between the address information of the site and the association identifier, and the corresponding relationship is provided between the site and the AP. Relay communication service.

Optionally, as another embodiment, the method 200 further includes:

S240, receiving a broadcast message of the carried data indication table TIM information sent by the relay device, where a binary bit corresponding to the associated identifier in the TIM information is a first value;

S250, sending, according to the broadcast message, a data transmission trigger message to the relay device, where the data transmission trigger message is used to request the relay device to send downlink data of the station cached by the relay device;

S260. Receive downlink data of the station that is sent by the relay device according to the data transmission trigger message.

FIG. 7 is a schematic flowchart of a method 300 for performing communication in a wireless local area network according to still another embodiment of the present invention. The method may be performed by an access point AP. As shown in FIG. 7, the method 300 includes:

S310. The request information sent by the receiving station by using the relay device, where the request information is used to request the access point AP to allocate an association identifier to the station.

S320. Assign an association identifier to the site according to the request information.

S330. Send, by the relay device, response information to the station, where the response information includes the association identifier.

Optionally, as another embodiment, the method 300 further includes:

S340, the association identifier that is allocated by the AP is sent to the relay device, so that the relay device establishes a correspondence between the address information of the site and the association identifier, and the corresponding relationship is provided between the site and the AP. Relay communication service.

Optionally, as another embodiment, the method 300 further includes:

S350. When the downlink data of the station exists in the AP, send a carrying data indication table TIM. a broadcast message of the information, the binary bit corresponding to the association identifier in the TIM information is a first value; S360, receiving a data transmission trigger message sent by the relay device according to the broadcast message, where the data transmission trigger message is used to request the The AP sends downlink data of the site;

S370. Send, according to the data transmission trigger message, downlink data of the station to the relay device.

It should be understood that the size of the sequence numbers of the above processes does not imply a sequence of executions, and the order of execution of each process should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention.

The method for performing communication in a wireless local area network according to an embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 7. Hereinafter, a relay device in a wireless local area network according to an embodiment of the present invention will be described with reference to FIG. 8 to FIG. Site and wireless access point. Sexual block diagram, as shown in Figure 8, the medium 3⁄4 ^ device 400 packs ·i: ' , ' ,

The obtaining module 410 is configured to acquire an association identifier allocated by the AP for the site;

The establishing module 420 is configured to establish a correspondence between the address information of the site and the association identifier obtained by the obtaining module 410, to provide a relay communication service for the site and the AP according to the correspondence.

Optionally, as another embodiment, as shown in FIG. 9, the relay device 400 further includes: a first receiving module 430, configured to receive the site before the acquiring module 410 acquires an association identifier allocated by the AP for the site. Sending request information, the request information is used to request the AP to allocate an association identifier to the site;

The first sending module 440 is configured to send the request information received by the first receiving module 430 to the AP, so that the AP allocates an association identifier to the station according to the request information;

The first receiving module 430 is further configured to receive the response information sent by the AP, where the response information includes an association identifier that is allocated by the AP to the site according to the request information sent by the first sending module 440. The first sending module 440 is further configured to send the response information received by the first receiving module 430 to the station.

Optionally, the obtaining module 410 is specifically configured to obtain the association identifier allocated by the AP from the response information.

Optionally, in another embodiment, the acquiring module 410 includes:

The receiving unit 411 is configured to receive the association identifier allocated by the AP sent by the station.

Optionally, in another embodiment, the acquiring module 410 includes:

The receiving unit 411 is configured to receive the association identifier that is allocated by the AP and sent by the AP.

Optionally, as another embodiment, as shown in FIG. 10, the relay device 400 further includes: a second receiving module 450, configured to receive a first broadcast message sent by the AP, where the first broadcast message is carried The binary bit corresponding to the association identifier in the TIM information is a first value;

The determining module 460 is configured to determine, according to the first broadcast message received by the second receiving module 450, downlink data of the station in the AP.

Optionally, in another embodiment, the second receiving module 450 is further configured to receive downlink data of the station sent by the AP;

Correspondingly, the relay device 400 further includes:

The cache module 470 is configured to buffer the downlink data of the station that is received by the second receiving module 450. The second sending module 480 is configured to send a second broadcast message that carries the TIM information, where the TIM information carried in the second broadcast message is used. The binary bit corresponding to the association identifier is a first value to indicate that downlink data of the station exists in the relay device.

Optionally, in another embodiment, the second receiving module 450 is further configured to receive a data transmission trigger message sent by the station according to the second broadcast message, where the data transmission trigger message is used to request the relay device to send the site. Downstream data;

The second sending module 480 is further configured to send downlink data of the station to the station according to the data transmission trigger message received by the second receiving module 450.

Optionally, in another embodiment, the second sending module 480 is further configured to: when the downlink data of the station does not exist in the relay device, send a third broadcast message that carries the TIM information, where the third broadcast message is sent. The binary bit corresponding to the associated identifier in the carried TIM information is the second value.

The relay device 400 according to an embodiment of the present invention may correspond to a relay device in a method of communicating in a wireless local area network according to an embodiment of the present invention, and the above-described and other operations and/or functions of respective modules in the relay device 400 In order to implement the corresponding processes of the respective methods in FIG. 1 to FIG. 5, for brevity, details are not described herein again.

Therefore, the method for performing communication in the wireless local area network according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the station, thereby avoiding each of the The device assigns an association identifier to the site managed by the device, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication. effectiveness. Further, in the TIM mechanism, the relay device and the AP may indicate whether the station exists according to the association identifier The downlink data of the point, and the relay device can receive and cache the downlink data of the station sent by the AP, so that the station can sleep for a longer time, further saving the power consumption of the station.

Figure 11 shows a schematic block diagram of a site 500 that includes:

The sending module 510 is configured to send, by using the relay device, the request information to the AP that is associated with the relay device, where the request information is used to request the AP to allocate an association identifier to the station.

The receiving module 520 is configured to receive response information that is sent by the AP by using the relay device, where the response information includes an association identifier that is allocated by the AP according to the request information sent by the sending module 510.

Optionally, in another embodiment, the sending module 510 is further configured to send the association identifier that is allocated by the AP to the relay device, so that the relay device establishes a correspondence between address information of the site and the association identifier. The relationship provides a relay communication service between the site and the AP according to the correspondence.

Optionally, in another embodiment, the receiving module 520 is further configured to receive a broadcast message of the carried data indication table TIM information sent by the relay device, where a binary bit corresponding to the associated identifier is One value

The sending module 510 is further configured to send, according to the broadcast message received by the receiving module 520, a data transmission trigger message to the relay device, where the data transmission trigger message is used to request the relay device to send the site cached by the relay device. Downstream data;

The receiving module 520 is further configured to receive downlink data of the station that is sent by the relay device according to the data transmission trigger message sent by the sending module 510.

The site 500 according to an embodiment of the present invention may correspond to a site in a method of communicating in a wireless local area network according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the site 500 are respectively implemented in FIG. The corresponding processes of the various methods are not repeated here for brevity.

FIG. 12 shows a schematic block diagram of a wireless access point AP 600, in accordance with an embodiment of the present invention, The AP 600 includes:

The receiving module 610 is configured to receive request information sent by the station by using the relay device, where the request information is used to request the access point AP to allocate an association identifier to the station;

The allocating module 620 is configured to allocate an association identifier to the site according to the request information received by the receiving module 610.

The sending module 630 is configured to send, by using the relay device, response information to the station, where the response information includes the association identifier allocated by the allocating module 620.

Optionally, in another embodiment, the sending module 630 is further configured to send, by the relay device, the association identifier that is allocated by the allocation module 620, so that the relay device establishes address information between the site and the association identifier. The corresponding relationship and provide a relay communication service between the site and the AP according to the correspondence.

Optionally, in another embodiment, the sending module 630 is further configured to: when the downlink data of the site exists in the AP, send a broadcast message that carries the data indication table TIM information, where the TIM information corresponds to the association identifier. The binary bit is the first value;

The receiving module 610 is further configured to receive a data transmission trigger message sent by the relay device according to the broadcast message sent by the sending module 630, where the data transmission trigger message is used to request the AP to send downlink data of the station;

The sending module 630 is further configured to send the downlink information of the station to the relay device according to the data transmission trigger message received by the receiving module 610.

The wireless access point AP 600 according to an embodiment of the present invention may correspond to the user equipment communicating in the wireless local area network according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the wireless access point AP 600 For the sake of brevity, the corresponding processes of the respective methods in FIG. 7 are not described herein.

FIG. 13 shows a schematic block diagram of a wireless local area network WLAN system 700 including: any one of the relay devices 710 as shown in FIG. 8 to FIG. 10, as shown in FIG. Site 720 and wireless access point 730 as shown in FIG. Therefore, the method for performing communication in the wireless local area network according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the station, thereby avoiding each of the The device assigns an association identifier to the site managed by the device, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication. effectiveness.

FIG. 14 shows a schematic block diagram of a relay device 800 of a wireless local area network WLAN including a processor 810, a memory 820, and a bus system 830, in accordance with another embodiment of the present invention. The processor 810 and the memory 820 are connected by a bus system 830 for storing instructions. The processor 810 calls the instruction stored in the memory 820 through the bus system 830. Specifically, the processor 810 is configured to obtain an association identifier that is allocated by the access point AP for the site, and establish a correspondence between the address information of the site and the association identifier obtained by the acquiring module, so that the corresponding relationship is the site. And the AP provides relay communication monthly services. Therefore, the method for performing communication in the wireless local area network according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the station, thereby avoiding each of the The device assigns an association identifier to the site managed by the device, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication. effectiveness.

It should be understood that, in the embodiment of the present invention, the processor 810 may be a central processing unit ("CPU"), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 820 can include read only memory and random access memory and provides instructions and data to the processor 810. A portion of memory 820 may also include non-volatile random access memory. For example, the memory 820 can also store information of the device type.

In addition to the data bus, the bus system 830 can also include a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 830 in the figure.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of the hardware in the processor 810 or an instruction in the form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware processor, or by a combination of hardware and software modules in the processor. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 820. The processor 810 reads the information in the memory 820 and completes the steps of the above method in combination with the hardware. To avoid repetition, it will not be described in detail here.

Optionally, as another embodiment, as shown in FIG. 14, the relay device 800 further includes: a receiver 840, configured to receive, before the processor 810 acquires an association identifier allocated by the AP for the station, Request information, the request information is used to request the AP to allocate an association identifier to the site; The sender 850 is configured to send the request information received by the receiver 840 to the AP, so that the AP allocates an association identifier to the station according to the request information.

The receiver 840 is further configured to receive the response information sent by the AP, where the response information includes an association identifier that is allocated by the AP to the station according to the request information sent by the sender 850.

The transmitter 850 is further configured to send the response information received by the receiver 840 to the station. Optionally, the processor 810 is specifically configured to obtain the association identifier allocated by the AP from the response information.

Optionally, in another embodiment, the receiver 840 is further configured to receive the association identifier that is sent by the AP sent by the station.

Optionally, in another embodiment, the receiver 840 is further configured to receive the association identifier of the AP that is sent by the AP.

Optionally, in another embodiment, the receiver 840 is further configured to receive a first broadcast message sent by the AP, where a bit corresponding to the associated identifier in the TIM information carried in the first broadcast message is first. Value

The processor 810 is further configured to determine, according to the first broadcast message received by the receiver 840, downlink data of the station in the AP.

Optionally, in another embodiment, the receiver 840 is further configured to receive downlink data of the site sent by the AP;

The processor 810 is further configured to buffer the downlink data of the station received by the receiver 840 to the memory 820;

The transmitter 850 is further configured to send a second broadcast message that carries the TIM information, where a binary bit corresponding to the association identifier in the TIM information carried in the second broadcast message is a first value, to indicate that the relay device exists Downstream data for the site.

Optionally, in another embodiment, the receiver 840 is further configured to receive a data transmission trigger message sent by the station according to the second broadcast message, where the data transmission trigger message is used to request the relay device to send the downlink of the station. Data

The transmitter 850 is further configured to send downlink data of the station to the station according to the data transmission trigger message received by the receiver 840.

Optionally, in another embodiment, the transmitter 850 is further configured to: when the downlink data of the station does not exist in the relay device, send a third broadcast message that carries the TIM information, where the third broadcast message is carried. The binary bit corresponding to the association identifier in the TIM information is the second value.

The relay device 800 according to an embodiment of the present invention may correspond to a relay device in a method of communicating in a wireless local area network according to an embodiment of the present invention, and the above-described and other operations and/or functions of respective modules in the relay device 800 In order to implement the corresponding processes of the respective methods in FIG. 1 to FIG. 5, for brevity, details are not described herein again.

Therefore, the relay device according to the embodiment of the present invention provides a relay communication service between the site and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the site, thereby avoiding each of the relay devices respectively The managed site assigns an association identifier, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which is a subsequent connection between the AP and the site. The letter process provides convenience and improves communication efficiency. Further, in the TIM mechanism, the relay device and the AP may indicate, according to the association identifier, whether downlink data of the site exists, and the relay device may receive and cache downlink data of the site sent by the AP, so that the site may Sleeping longer, further saving the site's power consumption.

Figure 15 shows a schematic block diagram of a station 900 in a wireless local area network WLAN, including a processor 910, a memory 920, a bus system 930, a transmitter 940, and a receiver 950, in accordance with another embodiment of the present invention. The processor 910, the memory 920, the transmitter 940, and the receiver 950 are connected by a bus system 930 for storing instructions, and the processor 910 calls the instructions stored in the memory 920 through the bus system 930. Specifically, the transmitter 940 is configured to send, by using a relay device, request information to an AP associated with the relay device, where the request information is used to request the AP to allocate an association identifier to the station.

The receiver 950 is configured to receive response information sent by the AP by using the relay device, where the response information includes an association identifier allocated by the AP to the station according to the request information sent by the sender 940.

Therefore, the site according to the embodiment of the present invention provides a relay communication service between the site and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the site, thereby preventing each relay device from separately managing it. The site assigns an association identifier, and can ensure that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication efficiency.

Optionally, in another embodiment, the transmitter 940 is further configured to send the association identifier that is allocated by the AP to the relay device, so that the relay device establishes a correspondence between address information of the site and the association identifier. The relationship provides a relay communication service between the site and the AP according to the correspondence.

Optionally, in another embodiment, the receiver 950 is further configured to receive a broadcast message of the carried data indication table TIM information sent by the relay device, where a binary bit corresponding to the associated identifier is One value

The transmitter 940 is further configured to send, according to the broadcast message received by the receiver 950, a data transmission trigger message to the relay device, where the data transmission trigger message is used to request the relay device to send the site cached by the relay device. Downstream data;

The receiver 950 is further configured to receive downlink data of the station that is sent by the relay device according to the data transmission trigger message sent by the transmitter 940.

The site 900 according to an embodiment of the present invention may correspond to a site in a method of communicating in a wireless local area network according to an embodiment of the present invention, and the above-described and other operations and/or functions of the respective modules in the site 900 are respectively implemented in FIG. The corresponding processes of the various methods are not repeated here for brevity.

16 shows a schematic block diagram of a wireless access point AP 1000 including a processor 1010, a memory 1020, a bus system 1030, a transmitter 1040, and a receiver 1050, in accordance with another embodiment of the present invention. The processor 1010, the memory 1020, the transmitter 1040, and the receiver 1050 are connected by a bus system 1030 for storing instructions, and the processor 1010 calls the instruction stored in the memory 1020 through the bus system 1030. specifically,

The receiver 1050 is configured to receive request information sent by the station by using the relay device, where the request information is used to request the access point AP to allocate an association identifier to the station.

The processor 1010 is configured to allocate an association identifier to the site according to the request information received by the receiver 1050.

The transmitter 1040 is configured to send response information to the station by using the relay device, where the response information includes the association identifier allocated by the processor 1010.

Therefore, the wireless access point AP according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier for the site, thereby avoiding each relay device. The associated identifiers are assigned to the sites managed by the APs, and the associated identifiers of the sites in the AP's basic service set are not conflicted. This facilitates the subsequent communication process between the AP and the site, improving communication efficiency.

It should be understood that, in the embodiment of the present invention, the processor 1010 may be a central processing unit ("CPU"), and the processor 1010 may also be other general-purpose processors, digital signal processors (DSPs). , Application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 1020 can include read only memory and random access memory and provides instructions and data to the processor 1010. A portion of memory 1020 may also include a non-volatile random access memory. For example, the memory 1020 can also store information of the device type.

The bus system 1030 can include, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 1030 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1010 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1020, and the processor 1010 reads the memory 1020. The information, combined with its hardware, completes the steps of the above method. To avoid repetition, it will not be described in detail here.

Optionally, in another embodiment, the transmitter 1040 is further configured to send the association identifier that is allocated by the processor 1010 to the relay device, so that the relay device establishes address information of the site and the association identifier. The corresponding relationship and provide a relay communication service between the site and the AP according to the correspondence.

Optionally, in another embodiment, the transmitter 1040 is further configured to send, when the downlink data of the station exists in the AP, a broadcast message that carries the data indication table TIM information, where the TIM information corresponds to the association identifier. The binary bit is the first value;

The receiver 1050 is further configured to receive a data transmission trigger message sent by the relay device according to the broadcast message sent by the transmitter 1040, where the data transmission trigger message is used to request the AP to send downlink data of the station;

The transmitter 1040 is further configured to send downlink data of the station to the relay device according to the data transmission trigger message received by the receiver 1050.

The wireless access point AP 1000 according to an embodiment of the present invention may correspond to the user equipment communicating in the wireless local area network according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the wireless access point AP 1000 For the sake of brevity, the corresponding processes of the respective methods in FIG. 7 are not described herein.

Therefore, the wireless access point AP according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier for the site, thereby avoiding each relay device. The associated identifiers are assigned to the sites managed by the APs, and the associated identifiers of the sites in the AP's basic service set are not conflicted. This facilitates the subsequent communication process between the AP and the site, improving communication efficiency. Further, in the TIM mechanism, the relay device and the AP may indicate, according to the association identifier, whether downlink data of the site exists, and the relay device may receive and cache downlink data of the site sent by the AP, so that the site may Sleeping longer, further saving the site's power consumption.

FIG. 17 is a schematic block diagram of a wireless local area network WLAN system 1100 implementing a relay function according to another embodiment of the present invention. The WLAN system 1100 includes: a relay device 1110 as shown in FIG. Site 1120 and wireless access point AP 1130 as shown in FIG.

Therefore, the WLAN system according to the embodiment of the present invention provides a relay communication service between the station and the access point AP through the relay device, and the AP uniformly allocates the association identifier to the station, thereby avoiding each relay device separately. Assigning an association identifier to the site it manages, and ensuring that the association identifier of the site in the basic service set of the AP does not conflict, which facilitates the subsequent communication process between the AP and the site, and improves communication efficiency.

It should be understood that in the embodiment of the present invention, the term "and/or" is merely an association relationship describing an associated object, indicating that there may be three relationships. For example, A and / or B, can mean: There are three cases where A exists separately, A and B exist at the same time, and B exists separately. In addition, the character "/,," in this article generally means that the contextual object is an "or" relationship. Those skilled in the art will appreciate that the various method steps and elements described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the steps and composition of the various embodiments have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Different methods may be used to implement the described functionality for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through other interfaces, devices or units of indirect or through connections or ^, or other forms of connection. The components displayed as the unit may or may not be physical units, that is, may be located at one place, or may be distributed to a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or a CD. A variety of media that can store program code.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A method of communication in a wireless local area network, characterized by: including:

Obtain the association ID assigned by the access point AP to the site;

A correspondence relationship between the address information of the site and the association identifier is established to provide relay communication services for the site and the AP according to the correspondence relationship.

2. The method according to claim 1, characterized in that, before obtaining the association identifier assigned by the access point AP to the site, the method further includes:

Receive request information sent by the site, where the request information is used to request the AP to allocate an association identifier to the site;

Send the request information to the AP, so that the AP assigns an association identifier to the site according to the request information;

Receive response information sent by the AP, where the response information includes an association identifier assigned by the AP to the site;

Send the response information to the site.

3. The method according to claim 2, characterized in that said obtaining the association identifier assigned by the AP for the site includes:

Obtain the association identifier assigned by the AP from the response information.

4. The method according to claim 1 or 2, characterized in that the obtaining the association identifier assigned by the AP for the site includes:

5. The method according to claim 1 or 2, characterized in that the obtaining the association identifier assigned by the AP for the site includes: , , ,

6. The method according to any one of claims 1 to 5, characterized in that the method further includes:

Receive the first broadcast message sent by the AP, and the data indication table carried in the first broadcast message indicates that the binary bit corresponding to the association identifier in the TIM information is the first value;

According to the first broadcast message, it is determined that downlink data of the station exists in the AP.

7. The method according to claim 6, characterized in that, the method further includes: receiving the downlink data of the site sent by the AP;

Caching downstream data from said site;

Send a second broadcast message carrying TIM information, where the binary bit corresponding to the association identifier in the TIM information carried in the second broadcast message is a first value to indicate that downlink data of the site exists in the relay device. .

8. The method according to claim 7, characterized in that, the method further includes: receiving a data transmission trigger message sent by the station according to the second broadcast message, the second data transmission trigger message is used for requesting The relay device sends the downlink data of the site; and sends the downlink data of the site to the site according to the data transmission trigger message.

9. The method according to any one of claims 6 to 8, characterized in that the method further includes:

When there is no downlink data of the site in the relay device, a third broadcast message carrying TIM information is sent, and the binary bit corresponding to the association identifier in the TIM information carried in the third broadcast message is a second value. .

10. A method for communicating in a wireless local area network, characterized by comprising: sending request information to an AP associated with the relay device through a relay device, where the request information is used to request the AP to allocate an association for a site logo;

Receive response information sent by the AP through the relay device, where the response information includes an association identifier assigned by the AP to the site.

11. The method according to claim 10, characterized in that, the method further includes: sending the association identifier assigned by the AP to the relay device, so that the relay device establishes the address of the site Correspondence between the information and the association identifier and provide relay communication services between the station and the AP according to the correspondence.

12. The method according to claim 10 or 11, characterized in that the method further includes:

Receive a broadcast message carrying data indication table TIM information sent by the relay device, where the binary bit corresponding to the association identifier in the TIM information is a first value;

According to the broadcast message, send a data transmission trigger message to the relay device, where the data transmission trigger message is used to request the relay device to send the downlink data of the site cached by the relay device;

Receive downlink data of the site sent by the relay device according to the data transmission trigger message.

13. A method of communicating in a wireless local area network, characterized by comprising: receiving request information sent by a station through a relay device, where the request information is used to request the access point AP to allocate an association identifier to the station;

According to the request information, assign an association identifier to the site;

Response information is sent to the site through the relay device, where the response information includes the association identifier.

14. The method according to claim 13, characterized in that, the method further includes: sending the association identifier assigned by the AP to the relay device, so that the relay device establishes the address of the site Correspondence between the information and the association identifier and provide relay communication services between the station and the AP according to the correspondence.

15. The method according to claim 13 or 14, characterized in that the method further includes:

When there is downlink data of the station in the AP, a broadcast message carrying data indication table TIM information is sent, and the binary bit corresponding to the association identifier in the TIM information is the first value;

receiving a data transmission trigger message sent by the relay device according to the broadcast message, The data transmission trigger message is used to request the AP to send downlink data of the site;

According to the data transmission trigger message, the downlink data of the station is sent to the relay device.

16. A relay device in a wireless local area network, characterized by: including:

Acquisition module, used to obtain the association identification assigned by the access point AP to the site;

An establishment module, configured to establish a correspondence between the address information of the site and the association identification obtained by the acquisition module, so as to provide relay communication services for the site and the AP according to the correspondence.

17. The relay device according to claim 16, characterized in that, the relay device further includes:

The first receiving module is configured to receive the request information sent by the site before the acquisition module obtains the association identifier assigned by the AP for the site, where the request information is used to request the AP to assign the association identifier for the site;

The first sending module is configured to send the request information received by the first receiving module to the AP, so that the AP allocates an association identifier to the site according to the request information;

The first receiving module is also configured to receive response information sent by the AP according to the request information sent by the first sending module, where the response information includes an association identifier assigned by the AP to the site;

The first sending module is also configured to send the response information received by the first receiving module to the site.

18. The relay device according to claim 17, characterized in that the obtaining module is specifically configured to obtain the association identification assigned by the AP from the response information.

19. The relay device according to claim 16 or 17, characterized in that the acquisition module includes:, , , , , ,

20. The relay device according to claim 16 or 17, characterized in that the acquisition module includes:, , , , , ,

21. The relay device according to any one of claims 16 to 20, characterized in that, the relay device further includes:

The second receiving module is configured to receive the first broadcast message sent by the AP, where the binary bit corresponding to the association identifier in the data indication table TIM information carried in the first broadcast message is the first value;

A determining module, configured to determine, according to the first broadcast message received by the second receiving module, that the downlink data of the site exists in the AP.

22. The relay device according to claim 21, characterized in that the second receiving module is also used to receive the downlink data of the site sent by the AP;

The relay equipment also includes:

A cache module, configured to cache the downlink data of the site received by the second receiving module; The second sending module is configured to send a second broadcast message carrying TIM information. The binary bit corresponding to the association identifier in the TIM information carried in the second broadcast message is a first value to indicate that in the relay device Downlink data exists for the site in question.

23. The relay device according to claim 22, wherein the second receiving module is further configured to receive a data transmission trigger message sent by the station according to the second broadcast message, the data transmission trigger message is used to request the relay device to send the downlink data of the site; the second sending module is also used to send the site's downlink data to the site according to the data transmission trigger message received by the second receiving module. Downstream data.

24. The relay device according to any one of claims 21 to 23, characterized in that, the second sending module is also configured to send when there is no downlink data of the station in the relay device. A third broadcast message carrying TIM information, where the binary bit corresponding to the association identifier in the TIM information carried in the third broadcast message is a second value.

25 A site, characterized in that, the port includes: ,;

A receiving module, configured to receive response information sent by the AP through the relay device, where the response information includes an association identifier assigned by the AP to the site according to the request information sent by the sending module.

26. The site according to claim 25, characterized in that, the sending module is further configured to send the association identifier assigned by the AP to the relay device, so that the relay device establishes the association of the site. Correspondence between the address information and the association identifier and provide relay communication services between the site and the AP according to the correspondence.

27. The site according to claim 25 or 26, characterized in that, the receiving module is also configured to receive a broadcast message sent by the relay device carrying data indication table TIM information, the TIM information is related to the The binary bit corresponding to the above-mentioned association identifier is the first value;

The sending module is also configured to send a data transmission trigger message to the relay device according to the broadcast message received by the receiving module. The data transmission trigger message is used to request the relay device to send the relay Downstream data of the site cached by the device;

The receiving module is also configured to receive the downlink data of the site sent by the relay device according to the data transmission trigger message sent by the sending module.

28. A wireless access point AP, characterized by: including:

A receiving module, configured to receive request information sent by the site through the relay device, where the request information is used to request the access point AP to allocate an association identifier to the site;

An allocation module, configured to allocate an association identifier to the site according to the request information received by the receiving module;

A sending module, configured to send response information to the site through the relay device, where the response information includes the association identifier allocated by the allocation module.

29. The AP according to claim 28, characterized in that, the sending module is further configured to send the association identifier allocated by the allocation module to the relay device, so that the relay device The device is configured to establish a correspondence between the address information of the site and the association identifier and provide relay communication services between the site and the AP according to the correspondence.

30. The AP according to claim 28 or 29, characterized in that, the sending module is also configured to send a broadcast message carrying data indication table TIM information when there is downlink data of the station in the AP, so The binary bit corresponding to the association identifier in the TIM information is the first value;

The receiving module is also used to receive a data transmission trigger message sent by the relay device according to the broadcast message sent by the sending module. The data transmission trigger message is used to request the AP to send downlink data of the site. ;

The sending module is also configured to send the downlink data of the site to the relay device according to the data transmission trigger message received by the receiving module.

31. A wireless local area network WLAN system, characterized by including:

The relay device according to any one of claims 16 to 24, the station according to any one of claims 25 to 27, and the wireless access point AP according to any one of claims 28 to 30. .