WO2014142569A1 - Procédé et dispositif permettant de configurer une liaison multibande dans un système de réseau local sans fil - Google Patents

Procédé et dispositif permettant de configurer une liaison multibande dans un système de réseau local sans fil Download PDF

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Publication number
WO2014142569A1
WO2014142569A1 PCT/KR2014/002102 KR2014002102W WO2014142569A1 WO 2014142569 A1 WO2014142569 A1 WO 2014142569A1 KR 2014002102 W KR2014002102 W KR 2014002102W WO 2014142569 A1 WO2014142569 A1 WO 2014142569A1
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WIPO (PCT)
Prior art keywords
communication channel
message
mobile terminal
nic
information
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Ceased
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PCT/KR2014/002102
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English (en)
Korean (ko)
Inventor
손주형
곽진삼
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Intellectual Discovery Co Ltd
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Intellectual Discovery Co Ltd
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Priority claimed from KR1020130048938A external-priority patent/KR20140113229A/ko
Application filed by Intellectual Discovery Co Ltd filed Critical Intellectual Discovery Co Ltd
Priority to US14/777,372 priority Critical patent/US9706477B2/en
Publication of WO2014142569A1 publication Critical patent/WO2014142569A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • Various embodiments of the present disclosure generally relate to link establishment, and more particularly, to a method and apparatus for fast initial link establishment in a WLAN system.
  • WLAN Wireless LAN
  • mobile terminals such as smart phones, smart pads, laptop computers, portable multimedia players, and embedded devices
  • mobile terminals such as smart phones, smart pads, laptop computers, portable multimedia players, and embedded devices
  • WLAN technology is based on wireless communication technology that enables mobile terminals such as smart phones, smart pads, laptop computers, portable multimedia players, and embedded devices to be connected to the Internet wirelessly at home, enterprise, or specific service area. to be.
  • An object of the present invention is to provide a method for link establishment between WLAN devices that support operation in multiple bands.
  • Another object of the present invention is to provide an apparatus for establishing a link between WLAN devices supporting operation in multiple bands.
  • a beacon message through a first communication channel of the plurality of communication channels from a wireless access device that supports a plurality of communication channels
  • the method for establishing a radio link may further include determining a communication channel for connection among the first communication channel and an available communication channel, and attempting to connect using the determined communication channel.
  • authentication may be requested to the first communication channel using the wireless access information.
  • the attempting connection may include transmitting a probe request message through the available communication channel when the determined communication channel is the available communication channel, and responding to the probe request message from the wireless access device. Receiving a probe response message.
  • Wireless link setting method performed in a wireless access device according to another embodiment of the present invention for achieving the above object, wireless connection information used for connection to a first communication channel of a plurality of communication channels, and the plurality of Generating a beacon message including a list of at least one available communication channel excluding a first communication channel of the communication channels, and transmitting the beacon message via the first communication channel.
  • the wireless link setting method may further include performing an authentication process with the mobile terminal when receiving an authentication request from the mobile terminal through the first communication channel.
  • the wireless link setting method may further include transmitting a probe response message, which is a response to the probe request message, to the mobile terminal when a probe request message is received from the mobile terminal through the at least one available communication channel. It may include.
  • a mobile terminal for achieving the other object, including a control unit for controlling the operation of the mobile terminal, and at least one network interface card for transmitting and receiving data based on the command of the control unit
  • the controller may be configured to receive a beacon message through a first communication channel among the plurality of communication channels from a wireless access device supporting a plurality of communication channels, and to be used to access the first communication channel from the beacon message. Acquire wireless access information and obtain a list of at least one available communication channel except for the first communication channel among the plurality of communication channels from the beacon message.
  • the controller may determine a communication channel for connection among the first communication channel and the available communication channel, and attempt to connect using the determined communication channel.
  • the controller may request authentication to the first communication channel using the radio access information.
  • the controller transmits a probe request message through the available communication channel, and receives a probe response message which is a response to the probe request message from the wireless access device. Can be.
  • a wireless access device including a control unit for controlling an operation of the wireless access device, and at least one network interface card for transmitting and receiving data based on a command of the control unit.
  • the control unit may include wireless connection information used for connection to a first communication channel among the plurality of communication channels, and at least one available communication channel list except for a first communication channel among the plurality of communication channels. Generates a beacon message including, and transmits the beacon message through the first communication channel.
  • the controller may perform an authentication process with the mobile terminal.
  • the controller may transmit a probe response message, which is a response to the probe request message, to the mobile terminal.
  • the communication channel information can be obtained quickly, so that the mobile terminal first attempts to access the channel after receiving the beacon first. Link setup time can be reduced even if the channels are different.
  • FIG. 1 briefly illustrates a configuration of an example of a WLAN system to which an embodiment of the present invention may be applied.
  • FIG. 2 schematically illustrates a step in which a MS establishes a link with an AP according to an embodiment of the present invention.
  • FIG. 3 illustrates a passive scanning step of an MS related to an embodiment of the present invention.
  • FIG 4 illustrates an active scanning step of an MS according to an embodiment of the present invention.
  • FIG. 5 is a block diagram schematically illustrating a mobile station (MS) according to an embodiment of the present invention.
  • FIG. 6 is a block diagram schematically illustrating an access point (AP) according to an embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating a WLAN access procedure when the MS has multiple NICs, more specifically, when the MS uses only one NIC among multiple NICs.
  • FIG. 8 illustrates an embodiment of the present invention illustrated in FIG. 7 in detail including message details.
  • FIG. 9 illustrates an embodiment of the present invention illustrated in FIG. 7 in detail in the 2.4 GHz and 5 GHz bands.
  • FIG. 10 is a flowchart illustrating a WLAN access procedure when the MS has multiple NICs, and more specifically, when the MS uses multiple NICs simultaneously among multiple NICs.
  • FIG. 11 illustrates an embodiment of the present invention shown in FIG. 10 in detail including message details.
  • FIG. 12 illustrates an embodiment of the present invention illustrated in FIG. 10 in detail in the 2.4 GHz and 5 GHz bands.
  • FIG. 13 illustrates a packet structure of a beacon message transmitted by an AP of the present invention.
  • FIG. 14 illustrates a packet structure of a probe request message transmitted by an MS of the present invention.
  • FIG. 15 illustrates a packet structure of a probe response message transmitted by an AP of the present invention.
  • Standardization of MAC (Medium Access Control) and PHY (Physical) layer among the standards of the WLAN technology is progressing through the Institute of Electrical and Electronics Engineers (IEEE) 802.11 working group.
  • FIG. 1 briefly illustrates a configuration of an example of a WLAN system to which an embodiment of the present invention may be applied.
  • a WLAN system includes one or more BSSs 211 and 221.
  • the BSSs 211 and 221 are a set of devices that can communicate with each other, and are mainly managed by one AP (Access Point, 210).
  • MS Mobile Station
  • MS 110, 120
  • MS is responsible for providing a wireless Internet service to the user by accessing the AP (210, 220) in accordance with the IEEE 802.11 WLAN standard.
  • the BSSs 211 and 221 may be classified into an Infrastructure BSS and an Independent BSS.
  • FIG. 1 shows an Infrastructure BSS.
  • the BSS-1 211 is managed and operated by the AP-1 210, and one or more MSs (MS-1 110, MS-2 120) are wirelessly connected through the AP-1 210.
  • the AP-1 210 is connected to the AP-2 220 through a distribution system (DS) 300.
  • BSSs 211 and 221 connected through a single DS 300 are gathered to form an extended Extended Service Set (ESS) 410.
  • ESS Extended Service Set
  • FIG. 2 schematically illustrates a step in which a MS establishes a link with an AP according to an embodiment of the present invention.
  • the scanning step is a step in which the MS 100 obtains access information of a BSS operated by the AP 200.
  • a passive scanning technique S101
  • S103 a passive scanning technique for acquiring information using only Beacon messages periodically transmitted by the AP
  • S105 a probe response from the AP
  • S101 passive scanning technique for acquiring information using only Beacon messages periodically transmitted by the AP
  • S103 a probe request to the AP
  • S105 There is an active scanning technique for obtaining access information.
  • the MS 100 Upon successful reception of the wireless access information in the scanning step, the MS 100 transmits an authentication request (S107a) and receives an authentication response (S107b) to perform an authentication procedure. After performing a successful authentication procedure in the IEEE802.11 layer, it is possible to perform the association step (S109a, S109b), and additionally perform 802.1X-based authentication (S111) and IP address acquisition (S113) through DHCP.
  • FIG. 3 illustrates a passive scanning step of an MS related to an embodiment of the present invention.
  • the MS-1 110 receives a beacon message periodically transmitted from the AP-1 210 and the AP-2 220 located nearby to receive wireless access information of each AP. Acquire.
  • FIG 4 illustrates an active scanning step of an MS according to an embodiment of the present invention.
  • the MS-1 110 transmits a Probe Request message to acquire information of APs located in the vicinity and transmits a Probe Response message corresponding to the AP-1 210 and AP-, respectively. Received from the 2 (220) to obtain radio access information of each AP.
  • FIG. 5 is a block diagram schematically illustrating a mobile station (MS) 100 according to an embodiment of the present invention.
  • the MS 100 includes one or more network interface cards (NICs) 111 to 119 for performing a WLAN access through an AP.
  • the NICs 111 to 119 are modules for performing a WLAN connection and may be internal or external to the MS.
  • the NICs 111 to 119 perform wireless communication with the AP according to the WLAN standard supported by the NICs 111 through 119.
  • the NICs 111 to 119 may operate only one NIC at the same time or operate multiple NICs 111 to 119 at the same time according to the performance and system requirements of the MS 100.
  • a plurality of NICs 111 to 119 are separated from each other, and the MAC / PHY layers of the respective NICs operate independently of each other.
  • the plurality of NICs 111 to 119 may be implemented as functional entities that are physically distinguished from each other, or may be integrated into one physical entity.
  • the mobile communication module 120 enables the MS 100 to transmit and receive a radio signal with an external device in a mobile communication network.
  • the user input 130 allows a command for controlling the MS 100 to be input by a user.
  • the display 140 may display a result and a state according to the operation of the MS 100 and may display information provided from the AP.
  • the memory 150 stores an access program for controlling access to the AP and various data according thereto.
  • the controller 160 controls the individual NICs 111 through 119 so that the MS 100 attempts to connect to the appropriate band using the access information received from the AP and user and system requirements. .
  • FIG. 6 is a block diagram schematically illustrating an access point (AP) 200 according to an embodiment of the present invention.
  • the AP 200 includes one or more network interface cards (NICs) 211 ⁇ 219 for operating a BSS in one or more bands.
  • the NICs 211 ⁇ 219 are modules for performing a WLAN service and may be internal or external to the AP 200.
  • the NICs 211 ⁇ 219 perform wireless communication with the MS according to a standard supported by each of the WLANs.
  • the NICs 211-219 may operate only one NIC (one of 211-219) at the same time or operate multiple NICs 211-219 at the same time according to the performance and system requirements of the AP 200. .
  • the AP 200 of the block diagram shows a plurality of NICs 211 to 219 separated from each other, and each NIC operates independently of each other in the MAC / PHY layer.
  • the plurality of NICs 211 to 219 may be implemented as functional entities that are physically distinguished from each other, or may be integrated into one physical entity.
  • the memory 250 stores a connection program for managing the connection of the MS and various data thereof.
  • the controller 260 controls the individual NICs 211 to 219 to access the MS with the appropriate band by using the access information of the plurality of bands and the requirements of the user and the system.
  • FIG. 7 illustrates that when the MS 100 has multiple NICs 111 and 113, in more detail, the MS 100 uses only one of the multiple NICs 111 and 113 at the same time.
  • FIG. I is a flowchart illustrating a WLAN access procedure.
  • the AP 200 periodically broadcasts individual Beacon messages to MSs in the service area of all BSSs operated by the MS. It transmits (S101). In the present embodiment, it is assumed that the AP 200 transmits a beacon in the BSS-1 operating as the NIC-1 211 (S101).
  • BSSI BSS Information, detailed access information
  • OB Operating Band, operating band
  • OC OC
  • the BSSI (1011 in FIG. 8) includes connection information of BSS-1.
  • the OB (1013 of FIG. 8) includes band ID information of a frequency band operated by the AP 200 through the NIC-1 211 and the NIC-2 213.
  • the OC (1015 of FIG. 8) includes detailed channel ID number information in a frequency band operated by the AP 200 through the NIC-1 211 and the NIC-2 213.
  • the MS 100 may try to access the BSS-1 directly operated by the AP 200 as the NIC-1 211 using the BSSI (1011 of FIG. 8) information.
  • the AP 200 not the BSS-1, attempts to access the BSS-2 operated by the NIC-2 213, the AP 200 cannot access only the information of the Beacon S101.
  • the MS 200 may additionally send a Probe Request message in a broadcast manner (S103) to request the BSSI-2 information of the NIC-2 213 from the AP 200.
  • S103 Service Request message
  • the MS that has not received the beacon it may request detailed BSSI information from the AP by sending a Probe Request message through a broadcast method.
  • the Probe Request (S103) includes an SB (Supporting Band) including one or more frequency band information to which one or more NICs 111 and 113 supported by the MS 100 can be connected (1031 in FIG. 8). You can send it with information.
  • SB Serial Band
  • the AP 200 Upon receiving the Probe Request (S103) message, the AP 200 transmits a Probe Response message to the MS 100 in a unicast manner (S105).
  • the Probe Response (S105) message includes BSSI (NIC-1) connection information (1011 in FIG. 8) necessary for the MS 100 to access through the NIC-1 111, similar to the original Beacon (S101) message. It may include BSSI (NIC-2) access information (1053 of FIG. 8) necessary for accessing through the NIC-2 113.
  • the MS 100 When the MS receives the Probe Response (S105) message and receives both the BSSI (NIC-1) access information (1011 of FIG. 8) and the BSSI (NIC-2) access information (1053 of FIG. 8), the MS 100 The user may select a band previously set or preferred by the MS 100 and attempt to access the same or simultaneously access multiple NICs 111 and 113. This is called an MS decision step (S107).
  • the Probe Response message S105 may include a load / availability indicator in consideration of the traffic congestion of each frequency band or the load of the AP in each BSSI. The MS 100 may use this information to determine whether to connect to a specific NIC of the AP 200.
  • FIG. 8 illustrates an embodiment of the present invention shown in FIG. 7 in detail including message details.
  • FIG. 9 illustrates an embodiment of the present invention illustrated in FIG. 7 in detail in the 2.4 GHz and 5 GHz bands.
  • IEEE 802.11n WLAN can be used in multiple frequency bands and can operate in 2.4GHz and 5GHz.
  • both passive scanning and active scanning techniques can be used
  • only passive scanning can be used due to frequency regulation.
  • the MS has to wait for receiving Beacon messages sequentially in a plurality of channels, so it takes a lot of time for the MS to acquire AP access information.
  • the present invention has the effect of enabling quick access without performing passive scanning in the 5 GHz band by using BSSI information of the 5 GH band obtained through active scanning in the 2.4 GHz frequency band.
  • the AP 200 periodically broadcasts individual Beacon messages to MSs existing in a service area of all BSSs operated by the MS. It transmits (S101).
  • the AP 200 transmits a beacon in the BSS-1 operated by the 2.4GHz NIC 211 (S101).
  • the MS 100 when the MS 100 receives the beacon through the 2.4 GHz NIC 111, the BSSI (BSS Information) 1011, the OB (Operating Band) 1013, and the OC (Operating Channel) are received. And the operation channel 1010 information.
  • the BSSI 1011 includes connection information of the BSS-1.
  • the OB 1013 includes band ID information of a frequency band operated by the AP 200 through the 2.4 GHz NIC 211 and the 5 GHz NIC 213.
  • the OC 1015 includes detailed channel ID number information in a frequency band operated by the AP 200 through the 2.4 GHz NIC 211 and the 5 GHz NIC 213.
  • the MS 100 may attempt to directly access the BSS-1 operated by the AP 200 as the 2.4 GHz NIC 211 using the BSSI 1011 information.
  • the MS 200 additionally sends a Probe Request message in a broadcast manner (S103) to request the BSSI-2 information of the 5GHz NIC 213 to the AP 200.
  • S103 Probe Request message
  • the MS that has not received the beacon it may request detailed BSSI information from the AP by sending a Probe Request message through a broadcast method.
  • the Probe Request (S103) includes SB (Supporting Band) 1031 information including one or more frequency band information to which one or more NICs 111 and 113 supported by the MS 100 can be connected. Can be sent.
  • SB Serial Band
  • the AP 200 Upon receiving the Probe Request (S103) message, the AP 200 transmits a Probe Response message to the MS 100 in a unicast manner (S105). Similar to the original Beacon (S101) message, the Probe Response (S105) message includes BSSI (2.4 GHz) connection information 1011 required for the MS 100 to access through the 2.4 GHz NIC 111, and a 5 GHz NIC ( And may include BSSI (5 GHz) connection information 1053 required to connect via 113.
  • BSSI 2.4 GHz
  • the MS 100 When the MS receives the Probe Response (S105) message and receives both the BSSI (2.4 GHz) connection information 1011 and the BSSI (5 GHz) connection information 1053, the MS 100 is preset by the user or the MS 100. Selects a preferred band and attempts to connect or simultaneously attempts to connect to multiple NICs 111 and 113. This is called an MS decision step (S107).
  • the Probe Response message S105 may include a load / availability indicator in consideration of the traffic congestion of each frequency band or the load of the AP in each BSSI. The MS 100 may use this information to determine whether to connect to a specific NIC of the AP 200.
  • FIG. 10 is a flowchart illustrating a WLAN access procedure when the MS has multiple NICs, more specifically, when the MS uses multiple NICs simultaneously among multiple NICs.
  • the AP 200 periodically broadcasts individual Beacon messages to MSs in the service area of all the BSSs operated by the broadcast method. It transmits (S101).
  • the AP 200 transmits a beacon in the BSS-1 operating as the NIC-1 211 (S101).
  • BSSI BSS Information, detailed access information
  • OB Operating Band, operating band
  • OC OC
  • the BSSI (1011 in Fig. 11) includes connection information of BSS-1.
  • the OB (1013 of FIG. 11) includes band ID information of a frequency band operated by the AP 200 through the NIC-1 211 and the NIC-2 213.
  • the OC (1015 in FIG. 11) includes detailed channel ID number information in a frequency band operated by the AP 200 through the NIC-1 211 and the NIC-2 213.
  • the MS 100 may attempt to directly access the BSS-1 operated by the AP 200 as the NIC-1 211 using the BSSI (1011 of FIG. 11) information.
  • the MS 200 may additionally send a Probe Request message in a broadcast manner (S103) to request the BSSI-2 information of the NIC-2 213 from the AP 200.
  • S103 Probe Request message
  • the MS that has not received the beacon it may request detailed BSSI information from the AP by sending a Probe Request message through a broadcast method.
  • the Probe Request (S103) includes an SB (Supporting Band) including one or more frequency band information to which one or more NICs 111 and 113 supported by the MS 100 can be connected (1031 in FIG. 11). You can send it with information.
  • SB Serial Band
  • the AP 200 Upon receiving the Probe Request (S103) message, the AP 200 transmits a Probe Response message to the MS 100 in a unicast manner (S105).
  • the Probe Response (S105) message includes BSSI (NIC-1) connection information (1011 in FIG. 11) necessary for the MS 100 to access through the NIC-1 111, similar to the original Beacon (S101) message. It may include BSSI (NIC-2) access information (1053 of FIG. 11) necessary for accessing through the NIC-2 113.
  • the MS 100 When the MS receives the Probe Response (S105) message and receives both the BSSI (NIC-1) connection information (1011 of FIG. 11) and the BSSI (NIC-2) connection information (1053 of FIG. 11), the MS 100 The user may select a band previously set or preferred by the MS 100 and attempt to access the same or simultaneously access multiple NICs 111 and 113. This is called an MS decision step (S107).
  • the Probe Response message S105 may include a load / availability indicator in consideration of the traffic congestion of each frequency band or the load of the AP in each BSSI. The MS 100 may use this information to determine whether to connect to a specific NIC of the AP 200.
  • the MS 100 may receive the WLAN service by utilizing both the NIC-1 111 and the NIC-2 211.
  • FIG. 11 illustrates an embodiment of the present invention illustrated in FIG. 10 in detail including message details.
  • FIG. 12 illustrates an embodiment of the present invention illustrated in FIG. 10 in detail in the 2.4 GHz and 5 GHz bands.
  • IEEE 802.11n WLAN can be used in multiple frequency bands and can operate in 2.4GHz and 5GHz.
  • both passive scanning and active scanning techniques can be used
  • only passive scanning can be used due to frequency regulation.
  • the MS has to wait for receiving Beacon messages sequentially in a plurality of channels, so it takes a lot of time for the MS to acquire AP access information.
  • the present invention has the effect of enabling quick access without performing passive scanning in the 5 GHz band by using BSSI information of the 5 GH band obtained through active scanning in the 2.4 GHz frequency band.
  • the AP 200 periodically broadcasts individual Beacon messages to MSs existing in the service area of all BSSs operated by the MS. It transmits (S101). In the present embodiment, it is assumed that the AP 200 transmits a beacon in the BSS-1 operated by the 2.4GHz NIC 211 (S101).
  • the MS 100 when the MS 100 receives the beacon through the 2.4 GHz NIC 111, the BSSI (BSS Information) 1011, the OB (Operating Band) 1013, and the OC (Operating Channel) are received. And the operation channel 1010 information.
  • the BSSI 1011 includes connection information of the BSS-1.
  • the OB 1013 includes band ID information of a frequency band operated by the AP 200 through the 2.4 GHz NIC 211 and the 5 GHz NIC 213.
  • the OC 1015 includes detailed channel ID number information in a frequency band operated by the AP 200 through the 2.4 GHz NIC 211 and the 5 GHz NIC 213.
  • the MS 100 may attempt to directly access the BSS-1 operated by the AP 200 as the 2.4 GHz NIC 211 using the BSSI 1011 information.
  • the MS 200 additionally sends a Probe Request message in a broadcast manner (S103) to request the BSSI-2 information of the 5GHz NIC 213 to the AP 200.
  • S103 Probe Request message
  • the MS that has not received the beacon it may request detailed BSSI information from the AP by sending a Probe Request message through a broadcast method.
  • the Probe Request (S103) includes SB (Supporting Band) 1031 information including one or more frequency band information to which one or more NICs 111 and 113 supported by the MS 100 can be connected. Can be sent.
  • SB Serial Band
  • the AP 200 Upon receiving the Probe Request (S103) message, the AP 200 transmits a Probe Response message to the MS 100 in a unicast manner (S105). Similar to the original Beacon (S101) message, the Probe Response (S105) message includes BSSI (2.4 GHz) connection information 1011 required for the MS 100 to access through the 2.4 GHz NIC 111, and a 5 GHz NIC ( And may include BSSI (5 GHz) connection information 1053 required to connect via 113.
  • BSSI 2.4 GHz
  • the MS 100 When the MS receives the Probe Response (S105) message and receives both the BSSI (2.4 GHz) connection information 1011 and the BSSI (5 GHz) connection information 1053, the MS 100 is preset by the user or the MS 100. Selects a preferred band and attempts to connect or simultaneously attempts to connect to multiple NICs 111 and 113. This is called an MS decision step (S107).
  • the Probe Response message S105 may include a load / availability indicator in consideration of the traffic congestion of each frequency band or the load of the AP in each BSSI. The MS 100 may use this information to determine whether to connect to a specific NIC of the AP 200.
  • the MS 100 performs the 2.4 GHz NIC 211 of the AP 200 and the authentication procedure (S109) and the association procedure (S111), and simultaneously or sequentially the MS 100 of the MS 100.
  • the 5 GHz NIC 113 performs an authentication procedure (S209) and an association procedure (S211) with the 5 GHz NIC 213 of the AP 200. If the above procedures are successfully performed, the MS 100 can receive the WLAN service by utilizing both the 2.4 GHz NIC 111 and the 5 GHz NIC 211.
  • FIG. 13 illustrates a packet structure of a beacon message transmitted by an AP of the present invention.
  • FIG. 14 illustrates a packet structure of a probe request message transmitted by an MS of the present invention.
  • FIG. 15 illustrates a packet structure of a probe response message transmitted by an AP of the present invention.

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  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de définir une liaison multibande dans un système de réseau local sans fil. Le procédé permettant de configurer une liaison sans fil comprend les étapes consistant : à recevoir, en provenance d'un dispositif d'accès sans fil prenant en charge la pluralité de voies de communication, un message d'incident par le biais d'une première voie de communication parmi une pluralité de voies de communication ; à obtenir, à partir du message d'incident, des informations d'accès sans fil qui sont utilisées pour accéder à une première voie de communication ; et à obtenir, à partir du message d'incident, au moins une liste de voies de communication disponibles à l'exception de la première voie de communication parmi la pluralité de voies de communication. Ainsi, le temps de configuration d'une liaison entre des appareils de réseau local sans fil peut être réduit.
PCT/KR2014/002102 2013-03-15 2014-03-13 Procédé et dispositif permettant de configurer une liaison multibande dans un système de réseau local sans fil Ceased WO2014142569A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/777,372 US9706477B2 (en) 2013-03-15 2014-03-13 Method and device for configuring multi-band based link in wireless LAN system

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
KR10-2013-0028310 2013-03-15
KR20130028310 2013-03-15
KR1020130048938A KR20140113229A (ko) 2013-03-15 2013-04-30 다중 채널 이동 단말기 장치
KR1020130048940A KR20140113230A (ko) 2013-03-15 2013-04-30 다중 채널을 사용하는 무선접속장치의 무선 링크 설정을 위한 방법
KR10-2013-0048944 2013-04-30
KR10-2013-0048936 2013-04-30
KR1020130048936A KR20140113228A (ko) 2013-03-15 2013-04-30 다중 채널을 사용하는 이동 단말기의 무선 링크 설정을 위한 방법
KR10-2013-0048940 2013-04-30
KR10-2013-0048938 2013-04-30
KR1020130048944A KR20140113231A (ko) 2013-03-15 2013-04-30 다중 채널 무선접속장치

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WO2014142569A1 true WO2014142569A1 (fr) 2014-09-18

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WO2018056679A1 (fr) * 2016-09-21 2018-03-29 엘지전자 주식회사 Procédé de réception de trame dans un système lan sans fil, et terminal sans fil utilisant ce procédé

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WO2018056679A1 (fr) * 2016-09-21 2018-03-29 엘지전자 주식회사 Procédé de réception de trame dans un système lan sans fil, et terminal sans fil utilisant ce procédé
CN106412882A (zh) * 2016-10-19 2017-02-15 深圳市晟碟半导体有限公司 一种智能设备接入无线网络的方法和系统
CN106412882B (zh) * 2016-10-19 2020-01-24 深圳市晟碟半导体有限公司 一种智能设备接入无线网络的方法和系统

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