JP2019047333A5

JP2019047333A5 -

Info

Publication number: JP2019047333A5
Application number: JP2017168541A
Authority: JP
Filing date: 2017-09-01
Publication date: 2020-08-20
Anticipated expiration: 2037-09-01

Description

上記課題を解決するために、本発明の一態様に係る無線基地局は、少なくとも１つの無線端末が、複数の無線基地局を経由して任意の端末と無線通信する無線通信システムにおいて、無線端末と直接無線接続される無線基地局であって、他の無線基地局を検索する無線ＩＦ部と、他の無線基地局からチャネル変更通知を受信するチャネル通知部と、チャネル変更通知の情報をもとにチャネルを変更するチャネル変更部と、アクセスポイントモードとステーションモードとの間でモードを切り替えるモード切替部と、チャネル変更通知を受信後一定期間内に他の無線基地局から接続要求がない場合、アクセスポイントモードからステーションモードに切り替える旨をモード切替部に通知する通信制御部とを備える。
In order to solve the above problems, a radio base station according to an aspect of the present invention is a radio communication system in which at least one radio terminal wirelessly communicates with an arbitrary terminal via a plurality of radio base stations. A wireless base station directly connected to the wireless base station, which includes a wireless IF unit that searches for another wireless base station, a channel notification unit that receives a channel change notification from another wireless base station, and a channel change notification information. When there is no connection request from another wireless base station within a certain period after receiving a channel change notification, a channel changing unit that changes the channel to and, a mode switching unit that switches the mode between access point mode and station mode. And a communication control unit that notifies the mode switching unit that the access point mode is switched to the station mode .

また、モード切替部は、通信制御部の通知をもとにステーションモードに切り替えた後において、無線ＩＦ部が他の無線基地局を検索し、チャネル変更部により当該他の無線基地局が使用するチャネルにチャネル変更し、その後、モード切替部がアクセスポイントモードに切り替える。
The mode switching unit, after which to switch to the station mode based on the notification of the communication control unit, the wireless IF unit searches the other wireless base station, the another radio base station uses the channel switching unit The channel is changed to a channel , and then the mode switching unit switches to the access point mode.

また、上記課題を解決するために、本発明の一態様に係る無線基地局の無線通信制御方法は、少なくとも１つの無線端末が、複数の無線基地局を経由して任意の端末と無線通信する無線通信システムにおいて、無線端末と直接無線接続される無線基地局の無線通信制御方法であって、他の無線基地局からチャネル変更通知を受信するステップと、チャネル変更通知の情報をもとにチャネルを変更するステップと、チャネル変更通知を受信後一定期間内に他の無線基地局から接続要求がない場合、ステーションモードへの切り替えを行うステップと、他の無線基地局を検索し、使用チャネルを当該他の無線基地局が使用するチャネルに変更した後アクセスポイントモードに戻るステップとを含む。
In order to solve the above problems, in a wireless communication control method for a wireless base station according to an aspect of the present invention, at least one wireless terminal wirelessly communicates with an arbitrary terminal via a plurality of wireless base stations. A wireless communication control method for a wireless base station directly wirelessly connected to a wireless terminal in a wireless communication system , the method comprising: receiving a channel change notification from another wireless base station; and a channel based on the information of the channel change notification. Change the station, and if there is no connection request from another wireless base station within a certain period after receiving the channel change notification, switch to the station mode, search another wireless base station, and select the channel to use. Changing to a channel used by the other radio base station and returning to the access point mode.

通信制御部３４は、変更チャネル情報を含む情報通知フレームを受信すると、一定期間（例えば1分間）待機し、
（ｃ）隣接する無線基地局から接続要求がない場合、自装置がルートＡＰであれば、モード切替部３５にモードを切り替える旨の通知を行い、自装置がリピータＡＰであれば、モード切替部３５にその旨を通知する。ここで、自装置がルートＡＰである場合のモード切替部３５にモードを切り替える旨の通知は、具体的にはアクセスポイントモード（以後、ＡＰモードとも呼ぶ）からステーションモード（以後、ＳＴＡモードとも呼ぶ）に切り替える通知である。
（ｄ）隣接する無線基地局から接続要求がある場合は、接続部３６にその旨を通知する。
When the communication control unit 34 receives the information notification frame including the changed channel information, it waits for a certain period (for example, 1 minute),
(C) If there is no connection request from the neighboring wireless base station, if the own device is the root AP, performs the notification of switching the mode to the mode switching unit 35, if its own device is a repeater AP, the mode switching section This is notified to 35. Here, when the device itself is the root AP, the notification of the mode switching to the mode switching unit 35 is specifically from the access point mode (hereinafter also referred to as AP mode) to the station mode (hereinafter also referred to as STA mode). ) Is a notification to switch to.
(D) When there is a connection request from an adjacent radio base station, the connection unit 36 is notified of that.

また、記憶部３７に記憶された無線基地局の初期設定を参照して、無線基地局がＡＰモードで動作するか、あるいは、ＡＰモードおよびＳＴＡモードの両方で動作するかを判断する。ここで、ＡＰモードで動作する場合は、無線基地局がルート（親機）に設定されており、ＡＰモードおよびＳＴＡモードの両方で動作する場合は、無線基地局がリピータ（子機）に設定されていると判断する。
Further, with reference to the initial setting of the wireless base station stored in the storage unit 37, the radio base station or to operate in the AP mode, or to determine whether to operate in both the AP mode and STA mode. Here, when operating in AP mode, the wireless base station is set to the root (base unit), and when operating in both AP mode and STA mode, the wireless base station is set to the repeater (slave unit). Judge that it has been done.

ここで、図５では、図４と同様の前提で動作する実施の形態に係る無線基地局であり、特にルート（親機）機能として動作している無線基地局が、リピータ機能として動作している無線基地局からＤＦＳ機能に基づくチャネル変更の通知を受けて後、同無線基地局との間でＷＤＳ通信を再開するまでを示している。
Here, in FIG. 5, the radio base station according to the embodiment that operates on the same premise as in FIG. 4, in particular, the radio base station that operates as the root (parent device) function operates as the repeater function. The figure shows a process from when a notification of a channel change based on the DFS function is received from the existing wireless base station to when the WDS communication with the wireless base station is restarted.

Claims

In a wireless communication system in which at least one wireless terminal wirelessly communicates with an arbitrary terminal via a plurality of wireless base stations, the wireless base station is directly wirelessly connected to the wireless terminal,
A wireless IF unit that searches for another wireless base station,
A channel notification unit that receives a channel change notification from another wireless base station,
A channel changing unit that changes the channel based on the information of the channel change notification,
A mode switching unit that switches the mode between access point mode and station mode,
If there is no connection request from another wireless base station within a certain period after receiving the channel change notification, a communication control unit that notifies the mode switching unit that the access point mode is switched to the station mode ,
A radio base station including.

The mode switching unit, after which to switch to the station mode based on the notification of the communication control unit, the wireless IF unit searches the other wireless base station, the channel changing unit the another wireless base station The channel is changed to the channel to be used , and then the mode switching unit switches to the access point mode,
The radio base station according to claim 1.

The radio base station according to claim 1 or 2, wherein the channel change notification is a notification indicating that the channel is changed based on detection of a radar wave by the other radio base station.

In a wireless communication system in which at least one wireless terminal wirelessly communicates with an arbitrary terminal via a plurality of wireless base stations, a wireless communication control method of a wireless base station directly wirelessly connected to the wireless terminal,
Receiving a channel change notification from another radio base station,
Changing the channel based on the information of the channel change notification,
If there is no connection request from another wireless base station within a certain period after receiving the channel change notification, a step of switching to station mode,
Searching for another wireless base station, changing the used channel to a channel used by the other wireless base station, and then returning to the access point mode.