# US 10,484,921 B2 · Wireless hotspot handover method, mobile terminal and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,484,921 B2 - Document ID: US10484921B2 - Status: Granted - Kind: B2 - Application number: 15/742,311 - Filed: 2015-10-08 - Published: 2018-07-19 - Granted: 2019-11-19 - Earliest claimed: 2015-07-07 - Assignees: Zte Corporation - Applicants: Zte Corporation - Inventors: Xiaojie Hao; Minchao Feng - Web page: https://patentgrep.com/patent/US10484921B2 ## CPC - H04W 36/08: Reselecting an access point - H04W 36/18: for allowing seamless reselection, e.g. soft reselection - H04W 36/302: {due to low signal strength} - H04W 76/34: Selective release of ongoing connections - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Disclosed is a wireless hotspot switching method, which is applied to a mobile terminal. The method comprises: after a mobile terminal establishes a first wireless connection with a first wireless hotspot via a first wireless module, and when it is determined that a first wireless link as a current network link meets a first pre-set condition, establishing a second wireless link with a second wireless hotspot via a second wireless module and maintaining the connection of the first wireless link, and then when it is determined that the second wireless link meets a second pre-set condition, switching a current network link to the second wireless link so as to access a network via the second wireless link. In this way, the whole switching process is transparent to a user, and the user will not feel problems, such as link disconnection, excessively slow network speed and poor network quality, due to link switching, so that seamless switching between wireless hotspots is implemented, and the fluency of network accessing during a user movement process is ensured. Also provided are a mobile terminal and a storage medium at the same time. ## Claims ### Claim 1 A wireless hotspot handover method, applied to a mobile terminal operating in a double-chip manner and comprising a first wireless module and a second wireless module, wherein the first wireless module and the second wireless module are implemented through double chips, the first wireless module and the second wireless module each being a Wi-Fi chip, the method comprising: when it is determined that a first wireless link serving as a current network link meets a first preset condition, establishing a second wireless link with a second wireless hotspot through the second wireless module, and keeping the first wireless link connected, wherein the first wireless link is established by the mobile terminal with a first wireless hotspot through the first wireless module; and when it is determined that the second wireless link meets a second preset condition, handing over the current network link from the first wireless link to the second wireless link so that a network is accessed through the second wireless link to implement seamless handover between wireless hotspots through the double-chip manner; the method further comprising: after the current network link is handed over from the first wireless link to the second wireless link, detecting stability of the second wireless link. ### Claim 2 (depends on 1) The method according to claim 1, wherein determining that the first wireless link serving as the current network link meets the first preset condition comprises: detecting signal strength of the first wireless link; and when the signal strength of the first wireless link is less than or equal to a first preset threshold value, determining that the first wireless link meets the first preset condition. ### Claim 3 (depends on 1) The method according to claim 1, wherein determining that the second wireless link meets the second preset condition comprises: detecting the signal strength of the first wireless link and signal strength of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value, determining that the second wireless link meets the second preset condition. ### Claim 4 (depends on 1) The method according to claim 1, wherein determining that the second wireless link meets the second preset condition comprises: detecting the signal strength and link performance of the first wireless link and the signal strength and link performance of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value and the link performance of the second wireless link is higher than the link performance of the first wireless link, determining that the second wireless link meets the second preset condition. ### Claim 5 (depends on 1) The method according to claim 1, wherein establishing the second wireless link with the second wireless hotspot through the second wireless module comprises: controlling the second wireless module to operate to automatically load configuration information and perform hotspot scanning; and when the second wireless hotspot matched with the configuration information is scanned, attempting to connect the second wireless hotspot, and after successful connection, establishing the second wireless link. ### Claim 6 (depends on 1) The method according to claim 1, wherein detecting the stability of the second wireless link comprises: when the second wireless link is kept stable for a preset time length, controlling the first wireless link to be disconnected, and stopping operation of the first wireless module; when the second wireless link is not kept stable for the preset time length and a link disconnection occurs to the second wireless link, controlling the current network link to be handed over from the second wireless link back to the first wireless link; and when the second wireless link is not kept stable for the preset time length and the link disconnection does not occur to the second wireless link, continuing detecting the stability of the second wireless link until the stability is kept for the preset time length. ### Claim 7 A mobile terminal, operating in a double-chip manner and comprising: a memory storing processor-executable instructions; a first wireless module and a second wireless module, wherein the first wireless module and the second wireless module are implemented through double chips, the first wireless module and the second wireless module each being a Wi-Fi chip; and a processor arranged to execute the stored processor-executable instructions to perform steps of: when it is determined that a first wireless link serving as a current network link meets a first preset condition, establishing a second wireless link with a second wireless hotspot through the second wireless module, and keeping the first wireless link connected, wherein the first wireless link is established by the mobile terminal with a first wireless hotspot through the first wireless module; and when it is determined that the second wireless link meets a second preset condition, handing over the current network link from the first wireless link to the second wireless link so that a network is accessed through the second wireless link to implement seamless handover between wireless hotspots through the double-chip manner; wherein the processor is further configured to: after the current network link is handed over from the first wireless link to the second wireless link, detect stability of the second wireless link. ### Claim 8 (depends on 7) The mobile terminal according to claim 7, wherein determining that the first wireless link serving as the current network link meets the first preset condition comprises: detecting signal strength of the first wireless link; and when the signal strength of the first wireless link is less than or equal to a first preset threshold value, determining that the first wireless link meets the first preset condition. ### Claim 9 (depends on 7) The mobile terminal according to claim 7, wherein determining that the second wireless link meets the second preset condition comprises: detecting the signal strength of the first wireless link and signal strength of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value, determining that the second wireless link meets the second preset condition. ### Claim 10 (depends on 7) The mobile terminal according to claim 7, determining that the second wireless link meets the second preset condition comprises: detecting the signal strength and link performance of the first wireless link and the signal strength and link performance of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value and the link performance of the second wireless link is higher than the link performance of the first wireless link, determining that the second wireless link meets the second preset condition. ### Claim 11 (depends on 7) The mobile terminal according to claim 7, wherein establishing the second wireless link with the second wireless hotspot through the second wireless module comprises: controlling the second wireless module to operate to automatically load configuration information and perform hotspot scanning; and when the second wireless hotspot matched with the configuration information is scanned, attempting to connect the second wireless hotspot, and after successful connection, establishing the second wireless link. ### Claim 12 (depends on 7) The mobile terminal according to claim 7, wherein the processor is arranged to execute the stored processor-executable instructions to further perform a step of: when the second wireless link is kept stable for a preset time length, controlling the first wireless link to be disconnected, and stopping operation of the first wireless module; when the second wireless link is not kept stable for the preset time length and a link disconnection occurs to the second wireless link, controlling the current network link to be handed over from the second wireless link back to the first wireless link; and when the second wireless link is not kept stable for the preset time length and the link disconnection does not occur to the second wireless link, controlling the detection module to continue detecting the stability of the second wireless link until the stability is kept for the preset time length. ### Claim 13 A non-transitory computer-readable storage medium having stored thereon a set of instructions arranged to execute a wireless hotspot handover method, applied to a mobile terminal operating in a double-chip manner and comprising a first wireless module and a second wireless module, wherein the first wireless module and the second wireless module are implemented through double chips, the first wireless module and the second wireless module each being a Wi-Fi chip, the method comprising: when it is determined that a first wireless link serving as a current network link meets a first preset condition, establishing a second wireless link with a second wireless hotspot through the second wireless module, and keeping the first wireless link connected, wherein the first wireless link is established by the mobile terminal with a first wireless hotspot through the first wireless module; and when it is determined that the second wireless link meets a second preset condition, handing over the current network link from the first wireless link to the second wireless link so that a network is accessed through the second wireless link to implement seamless handover between wireless hotspots through the double-chip manner; the method further comprising: after the current network link is handed over from the first wireless link to the second wireless link, detecting stability of the second wireless link. ### Claim 14 (depends on 13) The non-transitory computer-readable storage medium according to claim 13, wherein determining that the first wireless link serving as the current network link meets the first preset condition comprises: detecting signal strength of the first wireless link; and when the signal strength of the first wireless link is less than or equal to a first preset threshold value, determining that the first wireless link meets the first preset condition. ### Claim 15 (depends on 13) The non-transitory computer-readable storage medium according to claim 13, wherein determining that the second wireless link meets the second preset condition comprises: detecting the signal strength of the first wireless link and signal strength of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value, determining that the second wireless link meets the second preset condition. ### Claim 16 (depends on 13) The non-transitory computer-readable storage medium according to claim 13, wherein determining that the second wireless link meets the second preset condition comprises: detecting the signal strength and link performance of the first wireless link and the signal strength and link performance of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value and the link performance of the second wireless link is higher than the link performance of the first wireless link, determining that the second wireless link meets the second preset condition. ### Claim 17 (depends on 13) The non-transitory computer-readable storage medium according to claim 13, wherein establishing the second wireless link with the second wireless hotspot through the second wireless module comprises: controlling the second wireless module to operate to automatically load configuration information and perform hotspot scanning; and when the second wireless hotspot matched with the configuration information is scanned, attempting to connect the second wireless hotspot, and after successful connection, establishing the second wireless link. ### Claim 18 (depends on 13) The non-transitory computer-readable storage medium according to claim 13, wherein the method further comprises: when the second wireless link is kept stable for a preset time length, controlling the first wireless link to be disconnected, and stopping operation of the first wireless module; when the second wireless link is not kept stable for the preset time length and a link disconnection occurs to the second wireless link, controlling the current network link to be handed over from the second wireless link back to the first wireless link; and when the second wireless link is not kept stable for the preset time length and the link disconnection does not occur to the second wireless link, continuing detecting the stability of the second wireless link until the stability is kept for the preset time length. ### Claim 19 A wireless hotspot handover method, applied to a mobile terminal operating in a double-chip manner and comprising a first wireless module and a second wireless module, wherein the first wireless module and the second wireless module are implemented by a manner of simulating double chips on a single chip, the method comprising: when it is determined that a first wireless link serving as a current network link meets a first preset condition, establishing a second wireless link with a second wireless hotspot through the second wireless module, and keeping the first wireless link connected, wherein the first wireless link is established by the mobile terminal with a first wireless hotspot through the first wireless module; and when it is determined that the second wireless link meets a second preset condition, handing over the current network link from the first wireless link to the second wireless link so that a network is accessed through the second wireless link to implement seamless handover between wireless hotspots through the double-chip manner; the method further comprising: after the current network link is handed over from the first wireless link to the second wireless link, detecting stability of the second wireless link. ### Claim 20 (depends on 19) The method according to claim 19, wherein determining that the first wireless link serving as the current network link meets the first preset condition comprises: detecting signal strength of the first wireless link; and when the signal strength of the first wireless link is less than or equal to a first preset threshold value, determining that the first wireless link meets the first preset condition. ### Claim 21 (depends on 19) The method according to claim 19, wherein determining that the second wireless link meets the second preset condition comprises: detecting the signal strength of the first wireless link and signal strength of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value, determining that the second wireless link meets the second preset condition. ### Claim 22 (depends on 19) The method according to claim 19, wherein determining that the second wireless link meets the second preset condition comprises: detecting the signal strength and link performance of the first wireless link and the signal strength and link performance of the second wireless link; and when a difference between the signal strength of the first wireless link and the signal strength of the second wireless link is larger than a second preset threshold value and the link performance of the second wireless link is higher than the link performance of the first wireless link, determining that the second wireless link meets the second preset condition. ### Claim 23 (depends on 19) The method according to claim 19, wherein establishing the second wireless link with the second wireless hotspot through the second wireless module comprises: controlling the second wireless module to operate to automatically load configuration information and perform hotspot scanning; and when the second wireless hotspot matched with the configuration information is scanned, attempting to connect the second wireless hotspot, and after successful connection, establishing the second wireless link. ### Claim 24 (depends on 19) The method according to claim 19, wherein detecting the stability of the second wireless link comprises: when the second wireless link is kept stable for a preset time length, controlling the first wireless link to be disconnected, and stopping operation of the first wireless module; when the second wireless link is not kept stable for the preset time length and a link disconnection occurs to the second wireless link, controlling the current network link to be handed over from the second wireless link back to the first wireless link; and when the second wireless link is not kept stable for the preset time length and the link disconnection does not occur to the second wireless link, continuing detecting the stability of the second wireless link until the stability is kept for the preset time length.