Methods, Devices, and Systems for Registering and Discovering Service
AssigneeHuawei Technologies Co., Ltd.
InventorsYan Zhuang, Yungui Wang, Yingjie Gu, Fuqing Sun
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Abstract
Methods, devices, and systems for registering and discovering a service. An access point (AP) may receive and maintain service information registered by an associated station (STA), and serve as a proxy for a STA to discover service information in a network, and further discover a direct association service and manage direct communication between STAs, thereby meeting a user's demand of selecting a network according to a service requirement.
Claims20
A method for managing a direct association service in a wireless local area network (WLAN), comprising:
- receiving, by an access point (AP), a direct association service request frame from a first station (STA), wherein the direct association service request frame comprises a service request state and a first service name;
- obtaining, by the AP, a device address of a second STA when the service request state is a first request state, wherein the first request state represents that the first STA wants to obtain a Wi-Fi direct association service;
- probing, by the AP, a distance between the first STA and the second STA according to the device address of the second STA;
- querying, by the AP, a direct association service management table of the AP when the distance between the first STA and the second STA is not greater than a direct distance;
- recording, by the AP, first direct association service management information in the direct association service management table of the AP when the first service name and the device address of the second STA do not exist in the direct association service management table of the AP;
- and
- sending, by the AP, a first direct association service response frame to the first STA, wherein the first direct association service response frame comprises the device address of the second STA.
A method for obtaining a direct association service in a wireless local area network (WLAN), comprising:
- sending, by a first station (STA), a direct association service request frame to an access point (AP), wherein the direct association service request frame comprises a service request state and a service name;
- receiving, by the first STA, a direct association service response frame from the AP when the service request state is a first request state, wherein the first request state represents that the first STA wants to obtain a Wi-Fi direct association service;
- and
- establishing, by the first STA, a Wi-Fi direct association with a second STA corresponding to a group address when a direct association request succeeds and the direct association service response frame comprises the group address.
An access point (AP) for managing a direct association service in a wireless local area network (WLAN), comprising:
- an antenna configured to receive a direct association service request frame from a first station (STA), wherein the direct association service request frame comprises a service request state and a first service name;
- a processor coupled to the antenna and configured to:
- obtain a device address of a second STA when the service request state is a first request state, wherein the first request state represents that the first STA wants to obtain a Wi-Fi direct association service;
- probe a distance between the first STA and the second STA according to the device address of the second STA;
- query a direct association service management table of the AP when the distance between the first STA and the second STA is not greater than a direct distance;
- and
- record first direct association service management information in the direct association service management table of the AP when the first service name and the device address of the second STA do not exist in the direct association service management table of the AP, and
- wherein the antenna is further configured to send a first direct association service response frame to the first STA, and
- wherein the first direct association service response frame comprises the device address of the second STA.
A station (STA) for obtaining a direct association service in a wireless local area network (WLAN), wherein the STA is a first STA, and wherein the STA comprises:
- an antenna configured to:
- send a direct association service request frame to an access point (AP), wherein the direct association service request frame comprises a service request state and a service name;
- and
- receive a direct association service response frame from the AP when the service request state is a first request state, wherein the first request state represents that the first STA wants to obtain a Wi-Fi direct association service;
- a processor coupled to the antenna and configured to:
- determine, according to the direct association service response frame, whether a direct association service request succeeds;
- and
- establish a Wi-Fi direct association with a second STA corresponding to a group address comprised in the direct association service response frame when a direct association request succeeds.
Dependencies are inferred from the claim text.