Wireless local area network discovery and selection method, device, and system, and terminal
First Claim
1. A wireless local area network discovery and selection method, comprising:
- scanning wireless local area networks and acquiring a first wireless access point list, wherein the first wireless access point list comprises at least one wireless access point identifier and signal strength of each wireless access point in the at least one wireless access point identifier;
sending a registration request to a wireless local area network discovery and selection device when packet switched data is initiated to a cellular network, wherein the registration request carries location information of a terminal and the first wireless access point list;
receiving a notification message sent by the wireless local area network discovery and selection device, wherein the notification message carries access parameter information, wherein the access parameter information comprises an offload policy message and a second wireless access point list, wherein the second wireless access point list is acquired by the wireless local area network discovery and selection device by;
acquiring attribute information of each wireless access point in all wireless access point identifiers corresponding to the location information of the terminal upon reception of the registration request, the attribute information being acquired from one or more access controllers that correspond to the each wireless access point in all the wireless access point identifiers corresponding to the location information of the terminal, wherein the attribute information comprises at least one of a signal-to-noise ratio, a load, and throughput; and
identifying availability of each wireless access point according to the attribute information of each wireless access point in all the wireless access point identifiers corresponding to the location information of the terminal, wherein the second wireless access point list comprises at least one wireless access point identifier available for access by the terminal and attribute information of each wireless access point available for access by the terminal; and
selecting, according to the access parameter information, a target wireless access point, wherein selecting the target wireless access point according to the access parameter information comprises selecting, according to the offload policy message, the target wireless access point from the second wireless access point list, wherein the offload policy message is used to instruct to select a wireless access point with a highest signal strength, select a wireless access point with a smallest load, or select a wireless access point in a preset frequency band.
1 Assignment
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Accused Products
Abstract
The present disclosure provide a wireless local area network discovery and selection method, device, and system, and a terminal. The method includes sending a registration request to a wireless local area network discovery and selection device when packet switched data is initiated to a cellular network. A notification message sent by the wireless local area network discovery and selection device is received. The notification message is sent when the wireless local area network discovery. The selection device determines that a wireless local area network needs to be used to offload the packet switched data in the cellular network. The notification message carries access parameter information.
18 Citations
22 Claims
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1. A wireless local area network discovery and selection method, comprising:
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scanning wireless local area networks and acquiring a first wireless access point list, wherein the first wireless access point list comprises at least one wireless access point identifier and signal strength of each wireless access point in the at least one wireless access point identifier; sending a registration request to a wireless local area network discovery and selection device when packet switched data is initiated to a cellular network, wherein the registration request carries location information of a terminal and the first wireless access point list; receiving a notification message sent by the wireless local area network discovery and selection device, wherein the notification message carries access parameter information, wherein the access parameter information comprises an offload policy message and a second wireless access point list, wherein the second wireless access point list is acquired by the wireless local area network discovery and selection device by; acquiring attribute information of each wireless access point in all wireless access point identifiers corresponding to the location information of the terminal upon reception of the registration request, the attribute information being acquired from one or more access controllers that correspond to the each wireless access point in all the wireless access point identifiers corresponding to the location information of the terminal, wherein the attribute information comprises at least one of a signal-to-noise ratio, a load, and throughput; and identifying availability of each wireless access point according to the attribute information of each wireless access point in all the wireless access point identifiers corresponding to the location information of the terminal, wherein the second wireless access point list comprises at least one wireless access point identifier available for access by the terminal and attribute information of each wireless access point available for access by the terminal; and selecting, according to the access parameter information, a target wireless access point, wherein selecting the target wireless access point according to the access parameter information comprises selecting, according to the offload policy message, the target wireless access point from the second wireless access point list, wherein the offload policy message is used to instruct to select a wireless access point with a highest signal strength, select a wireless access point with a smallest load, or select a wireless access point in a preset frequency band. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless local area network discovery and selection method, comprising:
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receiving a registration request sent by a terminal, wherein the registration request is initiated when the terminal initiates packet switched data to a cellular network; after receiving the registration request sent by the terminal and before acquiring any access parameter information, determining whether the packet switched data in the cellular network needs to be offloaded, wherein determining whether the packet switched data in the cellular network needs to be offloaded comprises; acquiring, from a home location register, a priority of a user of the terminal; determining whether the priority of the user of the terminal is higher than or equal to a preset priority threshold; when the priority of the user of the terminal is higher than or equal to the preset priority threshold, determining that the packet switched data in the cellular network does not need to be offloaded; and when the priority of the user of the terminal is not higher than or equal to the preset priority threshold determining that the packet switched data in the cellular network may needs to be offloaded; acquiring the access parameter information in response to determining that the packet switched data in the cellular network needs to be offloaded; and sending a notification message carrying the access parameter information to the terminal so that the terminal selects, according to the access parameter information, a target wireless access point. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A terminal, comprising:
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a transmitter, configured to send, when packet switched data is initiated to a cellular network, a registration request to a wireless local area network discovery and selection device, wherein the registration request carries location information of the terminal to the wireless local area network discovery and selection device; a receiver, configured to receive a notification message sent by the wireless local area network discovery and selection device, wherein the notification message carries access parameter information, wherein the access parameter information carries an offload policy message, and wherein the offload policy message is used to instruct to select a wireless access point with a highest signal strength or select a wireless access point in a preset frequency band, and wherein the notification message further carries a second wireless access point list, wherein the second wireless access point list is acquired by the wireless local area network discovery and selection device by acquiring attribute information of each wireless access point in all wireless access point identifiers corresponding to the location information of the terminal upon reception of the registration request and identifying availability of each wireless access point according to the attribute information of each wireless access point in all the wireless access point identifiers corresponding to the location information of the terminal, the second wireless access point list comprises at least one wireless access point identifier available for access by the terminal and attribute information of each wireless access point available for access by the terminal, wherein the attribute information comprises at least one of a signal-to-noise ratio, a load, and throughput, and the offload policy message is used to instruct to select a wireless access point with a highest signal strength, select a wireless access point with a smallest load, or select a wireless access point in a preset frequency band; a processor; and a computer-readable storage medium storing a program to be executed by the processor, the program including instructions for; scanning wireless local area networks in response to receiving the notification message, and acquiring a first wireless access point list, wherein the first wireless access point list comprises at least one wireless access point identifier and signal strength of each wireless access point or a frequency band of each wireless access point in the first wireless access point list or both; and selecting, according to the access parameter information and the offload policy message, a target wireless access point from the second wireless access point list. - View Dependent Claims (15, 16, 17, 18)
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19. A wireless local area network discovery and selection device, comprising:
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a receiver, configured to receive a registration request sent by a terminal, wherein the registration request is initiated when the terminal initiates packet switched data to a cellular network, wherein the registration request carries location information of the terminal, and wherein the registration request carries a first wireless access point list, wherein the first wireless access point list is acquired by the terminal by scanning wireless local area networks and the first wireless access point list comprises at least one wireless access point identifier; a processor; and a computer-readable storage medium storing a program to be executed by the processor, the program including instructions for; acquiring access parameter information when a wireless local area network needs to be used to offload the packet switched data in the cellular network, wherein acquiring the access parameter information comprises; acquiring attribute information corresponding to each wireless access point identifier in the first wireless access point list, wherein the attribution information is acquired from one or more access controllers corresponding to each wireless access point identifier in the first wireless access point list, and wherein the attribute information comprises at least one of a signal-to-noise ratio, a load, and throughput; identifying availability of each wireless access point according to the attribute information corresponding to each wireless access point identifier in the first wireless access point list; acquiring a second wireless access point list, wherein the second wireless access point list comprises at least one wireless access point identifier available for access by the terminal and attribute information of each wireless access point available for access by the terminal; and acquiring a preset offload policy information, wherein the preset offload policy information is used to instruct to select a wireless access point with a highest signal strength, select a wireless access point with a smallest load, or select a wireless access point in a preset frequency band; and a transmitter, configured to send a notification message carrying the access parameter information to the terminal so that the terminal selects, according to the access parameter information, a target wireless access point, wherein sending the notification message carrying the access parameter information to the terminal comprises sending a notification message carrying the offload policy information and carrying the second wireless access point list to the terminal, so that the terminal selects, according to the offload policy message, to the target wireless access point from the second wireless access point list. - View Dependent Claims (20, 21, 22)
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Specification