WO2013178111A1 - Wlan热点搜索的控制方法及装置 - Google Patents

Wlan热点搜索的控制方法及装置 Download PDF

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Publication number
WO2013178111A1
WO2013178111A1 PCT/CN2013/077834 CN2013077834W WO2013178111A1 WO 2013178111 A1 WO2013178111 A1 WO 2013178111A1 CN 2013077834 W CN2013077834 W CN 2013077834W WO 2013178111 A1 WO2013178111 A1 WO 2013178111A1
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WO
WIPO (PCT)
Prior art keywords
wlan
coverage area
information
mobile terminal
base station
Prior art date
Application number
PCT/CN2013/077834
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English (en)
French (fr)
Inventor
黄翔
魏元
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of WO2013178111A1 publication Critical patent/WO2013178111A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of wireless local area network (WLAN) hotspot search technology, and in particular to a method and device for controlling WLAN hotspot search.
  • WLAN wireless local area network
  • WLAN provides high-speed data transmission and low-cost access services
  • cellular communications such as Code Division Multiple Access (CDMA)
  • CDMA Code Division Multiple Access
  • communication terminals with multiple wireless access methods such as WLAN and 3G (3rd-generation mobile communication technology, 3rd-generation) have become the mainstream trend, and such terminals are called "multi-mode terminals".
  • the above-mentioned user behavior is usually caused by:
  • FIG. 1 is a schematic diagram of cellular communication and WLAN deployment according to the related art.
  • WLAN is an updated wireless access mode with respect to cellular communication, and currently can only be deployed in the form of hotspots, unlike cellular.
  • Communication enables coverage of large areas. The user can easily know whether it is located in the cellular coverage area through the terminal, and for the WLAN, the user cannot know whether to enter the WLAN coverage area unless there is a significant identifier to inform the user.
  • the present invention provides a method and a device for controlling a WLAN hotspot search for solving the above problem, in accordance with the related art, how to perform automatic WLAN discovery and use of a WLAN.
  • a wireless local area network WLAN hotspot search control method includes:
  • the mobile terminal Querying, according to the identifier information, whether the mobile terminal is in a coverage area of the WLAN; if the query result is yes, starting a WLAN hotspot search function of the mobile terminal, and adjusting the coverage according to the coverage area information of the WLAN.
  • the step of querying, according to the identifier information, whether the mobile terminal is in a coverage area of a WLAN includes:
  • control method further includes:
  • the mobile terminal After the mobile terminal accesses the WLAN, it is determined whether the correspondence relationship table needs to be updated; and the corresponding relationship table is updated according to the determination result.
  • the step of determining whether the correspondence table needs to be updated includes:
  • the version query message includes a first version identifier of the correspondence relationship table; Receiving a response message sent by the network side, if the second version identifier included in the response message is different from the first version identifier, determining that the correspondence relationship table needs to be updated; if the second version included in the response message The identifier is the same as the first version identifier, and it is determined that the correspondence table does not need to be updated.
  • adjusting a scanning frequency of the WLAN hotspot search function according to the coverage area information of the WLAN includes:
  • the step of adjusting the scanning frequency of the WLAN hotspot search function according to the coverage area information of the WLAN includes:
  • the wireless signal strength of the WLAN is greater than or equal to a preset threshold
  • the scanning frequency of the WLAN hotspot search function is reduced.
  • a control device for a wireless local area network WLAN hotspot search comprising: an obtaining module, a querying module, a starting module, and an adjusting module, wherein: the obtaining module is configured to: obtain identification information of a cellular base station where the mobile terminal is located; Obtaining, according to the identifier information, whether the mobile terminal is in a coverage area of the WLAN;
  • the startup module is configured to: when the query result of the query module is yes, start a WLAN hotspot search function of the mobile terminal;
  • the adjusting module is configured to: adjust a scanning frequency of the WLAN hotspot search function according to the coverage area information of the WLAN, where the coverage area information includes location information and/or wireless Environmental information.
  • the querying module includes an obtaining unit, a querying unit, and a determining unit, where: the acquiring unit is configured to: obtain a correspondence table between the identifier information of the cellular base station and the coverage area of the WLAN;
  • the query unit is configured to: query whether the identification information of the cellular base station where the mobile terminal is located has a corresponding coverage area of the WLAN in the correspondence relationship table;
  • the determining unit is configured to determine that the mobile terminal is in a coverage area of the WLAN if there is a coverage area of the corresponding WLAN.
  • control device further includes a determining module and an updating module, where:
  • the determining module is configured to: after the mobile terminal accesses the WLAN, determine whether the correspondence table needs to be updated;
  • the updating module is configured to: perform an update process on the correspondence relationship table according to the determination result of the determining module.
  • the determining module includes a sending unit and a receiving unit, where:
  • the sending unit is configured to: send a version query message to the network side, where the version query message includes a first version identifier of the correspondence relationship table;
  • the receiving unit is configured to: receive a response message sent by the network, if the second version identifier included in the response message is different from the first version identifier, determine that the correspondence table needs to be updated; The second version identifier included in the message is the same as the first version identifier, and it is determined that the correspondence table does not need to be updated.
  • the identifier information of the cellular base station where the mobile terminal is located is used, and the mobile terminal is in the coverage area of the WLAN according to the identifier information. If the query result is yes, the WLAN hotspot of the mobile terminal is started. Searching for a function, and adjusting a scanning frequency of the WLAN hotspot search function according to the coverage area information of the WLAN, wherein the coverage area information includes location information and/or wireless environment information, and how the mobile terminal automatically performs WLAN automatic discovery in the related art. And the use of WLAN is more power-hungry, reducing the power consumption of the mobile terminal.
  • FIG. 1 is a schematic diagram of cellular communication and WLAN deployment according to the related art
  • FIG. 2 is a flowchart of a method for controlling a WLAN hotspot search according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a WLAN hotspot search control apparatus according to an embodiment of the present invention
  • FIG. 4 is a query module according to an embodiment of the present invention. Preferred structural block diagram
  • FIG. 5 is a block diagram showing a preferred structure of a WLAN hotspot search control apparatus according to an embodiment of the present invention
  • FIG. 6 is a block diagram showing a preferred structure of a judging module according to an embodiment of the present invention.
  • FIG. 7 is a block diagram showing a preferred structure of a WLAN hotspot search control apparatus according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a cellular based WLAN access method according to a preferred embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a description of a cell-based WLAN access method according to Embodiment 1 of the present invention; FIG.
  • FIG. 11 is a flowchart of a method for WLAN access based on a cell according to a first embodiment of the present invention
  • FIG. 12 is a schematic diagram of a description of a method for WLAN access based on a cell according to Embodiment 2 of the present invention
  • FIG. 13 is a flowchart of a method for WLAN access based on a cell according to a second embodiment of the present invention
  • FIG. 14 is a schematic diagram of a description of a method for WLAN access based on a cell according to Embodiment 3 of the present invention
  • FIG. 15 is a flowchart of a cellular-based WLAN access method according to Embodiment 3 of the present invention
  • FIG. 16 is a flowchart of updating a WLAN coverage area information lookup table according to Embodiment 4 of the present invention.
  • FIG. 2 is a flowchart of a method for controlling a WLAN hotspot search according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • the WLAN hotspot search function of the mobile terminal is started, and the scan frequency of the WLAN hotspot search function is adjusted according to the coverage area information of the WLAN, where the coverage area information includes location information and/or Or wireless environment information.
  • the WLAN hotspot search function is enabled according to the identification information of the cellular base station where the mobile terminal is located, and the WLAN hotspot search function is enabled according to the WLAN.
  • the coverage area information adjusts the scanning frequency of the WLAN hotspot search function, because the cellular communication function of the mobile terminal usually remains on, and the identification information of the cellular base station is used to obtain whether the mobile terminal is in the coverage of the WLAN and thereby initiate the WLAN scanning function. Therefore, it is possible to prevent the mobile terminal from unnecessary WLAN scanning without being in the coverage of the WLAN, and adjust the scanning frequency of the WLAN hotspot search function according to the coverage area information of the WLAN, thereby enabling flexible control of the scanning frequency.
  • the invention solves the problem that the mobile terminal performs automatic WLAN discovery and consumes power using the WLAN in the related technology, and reduces the power consumption of the mobile terminal.
  • the mobile terminal may obtain the identifier information of the base station of the current cell, and may also obtain the identifier information of the neighboring base station at the location as the identifier information of the cellular base station where the mobile terminal is located.
  • the mobile terminal may acquire the identification information of the base station after accessing the base station, or may directly acquire the information of the cellular base station without accessing.
  • whether the mobile terminal is in the coverage area of the WLAN may be queried according to the identification information by means of a table lookup. For example, the correspondence between the identification information of the cellular base station and the coverage area of the WLAN may be first obtained; and then the cellular base station accessed by the mobile terminal is queried. Whether the identification information has a coverage area of the corresponding WLAN in the correspondence table. If the coverage area of the corresponding WLAN exists, it can be stated that the mobile terminal is in the coverage area of the WLAN, so that the WLAN hotspot search function can be enabled; if there is no corresponding WLAN coverage area, it can be stated that the mobile terminal is not in the WLAN. In the coverage area, the above steps can be repeated.
  • the foregoing correspondence table may also be referred to as a WLAN coverage area information query table, where the table may be acquired by the network side, or may be pre-stored in the mobile terminal, and updated from the network side after accessing the WLAN network. For example, after the mobile terminal accesses the WLAN, it can determine whether it is necessary to update the correspondence table, and update the correspondence table according to the judgment result.
  • determining whether the corresponding relationship table needs to be updated may be performed in the following manner: First, the mobile terminal may send the version identifier (referred to as the first version identifier) of the foregoing corresponding relationship table stored in the local version in the version query message. After the network side receives the version query message, the network side can compare the first version identifier with the version identifier of the new correspondence table on the network side (referred to as the second version identifier). If the version identifier is the same, the network side may not carry the version identifier in the response message returned to the mobile terminal, or may carry the second version identifier that is the same as the first version identifier, and the mobile terminal receives the network side. After the response message is sent, it is determined that the correspondence table does not need to be updated;
  • the network side needs to carry the second version identifier that is different from the first version identifier in the response message that is returned to the mobile terminal, and the mobile terminal receives the response message sent by the network side. , determine that you need to update the correspondence table.
  • the manner of adjusting the scanning frequency of the WLAN hotspot search function according to the coverage area information of the WLAN may be performed according to the location information of the WLAN and/or the WLAN hotspot search function according to the wireless environment information of the WLAN.
  • the scanning frequency is adjusted.
  • the location information of the WLAN may be the distance between the WLAN hotspot and the cellular base station, or may be the direction in which the WLAN hotspot is located in the cellular base station, and may also be other information that represents the physical location relationship between the WLAN and the cellular base station.
  • the scanning frequency of the WLAN hotspot search function can be adjusted according to the location information of the WLAN, for example, the coverage area information includes The location information is the vector distance between the WLAN and the cellular base station.
  • the scanning frequency of the WLAN hotspot search function can be reduced to increase the scanning period, thereby saving power consumption;
  • the scanning frequency of the WLAN hotspot search function can be increased to reduce the scanning period, so that the available WLAN can be searched more quickly and conveniently used by the user.
  • the wireless environment information of the WLAN may be the average signal strength of the WLAN coverage by the cellular base station, or may be the coverage radius of the WLAN, and may of course be other information indicating the signal environment covered by the WLAN at the cellular base station.
  • the scanning frequency of the WLAN hotspot search function may be adjusted according to the wireless environment information of the WLAN. For example, when the wireless environment information included in the coverage area information is the average wireless signal strength of the WLAN, when the WLAN is at the cellular base station When the average signal strength is weak, the scanning frequency of the WLAN hotspot search function can be reduced to increase the scanning period, thereby saving power consumption; when the average signal strength of the WLAN in the cellular base station is strong, the WLAN hotspot search function can be increased.
  • the scanning frequency is used to reduce the scanning period, so that the available WLAN can be searched more quickly and conveniently used by the user.
  • a WLAN scanning control device is also provided, which can be located in the mobile terminal, and the device is used to implement the above-mentioned embodiments and preferred embodiments, and the detailed description thereof has been omitted.
  • the term "module” may implement a combination of software and/or hardware for a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.
  • FIG. 3 is a structural block diagram of a WLAN hotspot search control apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: an obtaining module 32, a querying module 34, a starting module 36, and an adjusting module 38. Detailed instructions are given.
  • the obtaining module 32 is configured to: obtain the identification information of the cellular base station where the mobile terminal is located; the querying module 34 is connected to the obtaining module 32, and is configured to: query, according to the identification information acquired by the obtaining module 32, whether the mobile terminal is in the coverage area of the WLAN;
  • the startup module 36 is connected to the query module 34, and is configured to: when the query result of the query module 34 is YES, start the WLAN hotspot search function of the mobile terminal;
  • the adjustment module 38 is connected to the startup module 36, and configured to: adjust a scanning frequency of the WLAN hotspot search function according to the coverage area information of the WLAN, where the coverage area information includes the location information Information and/or wireless environment information.
  • the foregoing module according to the identifier information of the cellular base station where the mobile terminal is located, which is obtained by the acquiring module 32, queries the query module 34 whether the mobile terminal is in the coverage area of the WLAN, and if it is in the coverage area of the WLAN,
  • the startup module 36 turns on the WLAN hotspot search function, and uses the adjustment module 38 to adjust the scan frequency of the WLAN hotspot search function according to the coverage area information of the WLAN, because the cellular communication function of the mobile terminal usually remains on, and the identification information of the cellular base station is maintained.
  • the scanning frequency of the WLAN hotspot search function is adjusted, so that the scanning frequency can be flexibly controlled, and how the mobile terminal automatically performs WLAN automatic discovery and consumes power using the WLAN is solved in the related art, and the power consumption of the mobile terminal is reduced.
  • the query module 34 may include an obtaining unit 342, a query unit 344, and a determining unit 346, where: the obtaining unit 342 is configured to: acquire a cell. a correspondence table between the identification information of the base station and the coverage area of the WLAN;
  • the query unit 344 is connected to the obtaining unit 342, and is configured to: query whether the identification information of the cellular base station where the mobile terminal is located, whether the corresponding WLAN coverage area exists in the corresponding relationship table obtained by the obtaining unit 342;
  • the determining unit 346 is connected to the query unit 344 and configured to: if there is a coverage area of the corresponding WLAN, determine that the mobile terminal is in the coverage area of the WLAN.
  • FIG. 5 is a block diagram of a preferred structure of a WLAN hotspot search control apparatus according to an embodiment of the present invention.
  • the apparatus may further include a determining module 52 and an updating module 54, wherein: the determining module 52, and the starting module 36 Connected, set to: after the mobile terminal accesses the WLAN, determine whether it is necessary to update the correspondence table;
  • the update module 54 is connected to the judging module 52, and is configured to: update the correspondence table according to the judgment result of the judging module 52.
  • FIG. 6 is a block diagram showing a preferred structure of the determining module 52 according to an embodiment of the present invention. As shown in FIG.
  • the determining module 52 can include a transmitting unit 522 and a receiving unit 524, where:
  • the sending unit 522 is configured to: send a version query message to the network side, where the version query message includes the first version identifier of the corresponding relationship table;
  • the receiving unit 524 is connected to the sending unit 522, and configured to: receive a response message sent by the network side, if the second version identifier included in the response message is different from the first version identifier, determine that the corresponding relationship table needs to be updated; The included second version identifier is the same as the first version identifier, and it is determined that the correspondence table does not need to be updated.
  • the adjustment module 38 may include an increase unit 382 and a reduction unit 384, where:
  • the augmenting unit 382 is configured to: increase the scanning frequency of the WLAN hotspot search function; the reducing unit 384 is configured to: reduce the scanning frequency of the WLAN hotspot search function.
  • the system and method mainly relate to a system and method for a multi-mode mobile terminal to utilize a acquired cellular base station information to sense a WLAN coverage area and implement power saving in the process.
  • FIG. 8 is a flowchart of a WLAN access method for a WLAN network in a multimode terminal according to a preferred embodiment of the present invention. As shown in FIG. 8, the method includes the following steps:
  • Step S802 the multi-mode mobile terminal stores a WLAN coverage area information query table;
  • the WLAN coverage area information query table forms a mapping relationship between the cellular base station identifier and the WLAN coverage area, and includes a geographical relationship between the cellular base station and the WLAN coverage area, and the WLAN coverage area wireless Information:
  • the mobile terminal acquires cellular base station identification information by using a cellular function.
  • the identification information may be an ID of the cellular base station, location information of the cellular base station, and the like, which can identify the cellular base station.
  • Step S804 querying WLAN coverage area information according to the base station identification information.
  • Step S806 determining whether it is close to the WLAN coverage area, further determining whether to enable the WLAN Scan; if it is close to the WLAN coverage area, proceed to step S808, otherwise return to step S802.
  • Step S810 further, the mobile terminal may further adjust the scan period according to the WLAN coverage area information to implement further power saving.
  • Step S812 announcing that the user has an available WLAN.
  • the terminal may also query the network for an updated version of the WLAN coverage area information lookup table and update according to the query result.
  • FIG. 9 is a structural block diagram of a cellular-based WLAN access system for solving a WLAN network automatic discovery and power saving problem in a multimode terminal according to an alternative embodiment of the present invention.
  • the system may include cellular information.
  • An acquisition unit a WLAN information storage unit, a cellular information processing unit, a WLAN information notification unit, and a power saving management unit, wherein:
  • the cellular information acquiring unit (implementing the function of the obtaining module 32) is configured to: acquire cellular communication base station information;
  • the WLAN information storage unit is configured to: store a WLAN coverage area information lookup table; the cellular information processing unit (implementing the function of the query module 34) is configured to: process the cellular information obtained from the cellular information acquisition unit;
  • the WLAN information notification unit is configured to: notify the user that there is an available WLAN in the current location;
  • the power saving management unit (implementing the functions of the startup module 36 and the adjustment module 38) is configured to: manage the WLAN function and adjust the WLAN power saving.
  • the cellular base station identifier (Base Station) is described for convenience of description.
  • BSID base station ID
  • BS base station ID
  • the multi-mode mobile terminal has at least a cellular communication function and a WLAN function, and the WLAN function is in a normally-off state, and the cellular communication function is in a normal online state as an example.
  • the standard for the multimode mobile terminal to determine whether the WLAN coverage area is close to or away from the base station may be pre-configured by a user customization or a wireless access service provider or the like.
  • the timing of the WLAN coverage area information lookup table update may be when the cellular base station or When the WLAN hotspot is changed, the terminal side adjusts the stored WLAN coverage area information query table through the network.
  • FIG. 10 is a schematic diagram of a scenario of a WLAN access method based on a cell according to a first embodiment of the present invention. As shown in FIG. 10, in this scenario, there is no WLAN coverage area in a cell coverage area.
  • 11 is a flowchart of a cellular-based WLAN access method according to Embodiment 1 of the present invention. As shown in FIG. 11, the method includes the following steps:
  • Step S1102 The multimode mobile terminal acquires base station information of a current coverage area of the cell. For example, the terminal moves into the coverage area of the cellular base station BS-1, and the cellular information acquiring unit on the terminal acquires information of the cellular base station BS-1, for example, the BSID is BS-1.
  • Step S1104 The terminal queries the WLAN coverage area information in the coverage area of the base station according to the obtained base station information, for example, the WLAN coverage area information query table stored by the cellular information processing unit in the WLAN information storage unit according to the obtained BSID.
  • Table 1 is a WLAN coverage area information lookup table according to the first embodiment of the present invention.
  • the WLAN coverage area information lookup table stored by the WLAN information storage unit records the cell base station information, the WLAN information, and the distance of the WLAN hotspot from the cellular base station. It may have the style shown in Table 1, but is not limited to the style.
  • the table may also record the latitude and longitude information of the cellular base station and the latitude and longitude information of the WLAN hotspot, or the average signal strength of the WLAN hotspot in the coverage area of the cellular base station, and the like. Information for determining the location of the WLAN coverage area within the coverage area of the cell.
  • W LAN information (WLAN Information)
  • Step S1106 After querying the WLAN coverage area information in the coverage area of the base station, the terminal finds that there is no WLAN in the coverage area of the base station, and then keeps the WLAN function of the terminal in the closed state, and waits for the terminal to enter the new cellular coverage area, and then repeats the steps. S1102. For example, after the cellular information processing unit queries the WLAN coverage area information lookup table, it is found that in the coverage area of the base station where the BSID is BS-1, if there is no WLAN coverage area, the cellular information processing unit exits, waiting for the cellular information acquiring unit to obtain a new one. Cellular base station information.
  • FIG. 12 is a schematic diagram of a description of a scenario of a WLAN access method based on a cell according to a second embodiment of the present invention. As shown in FIG. 12, in this scenario, a WLAN coverage area exists in a cell coverage area. 13 is a flowchart of a cellular-based WLAN access method according to Embodiment 2 of the present invention. As shown in FIG. 13, the method includes the following steps:
  • Step S1302 The multi-mode mobile terminal acquires base station information of a current coverage area of the cell. For example, the terminal moves into the coverage area of the cellular base station BS-2, and the cellular information acquiring unit on the terminal obtains the identifier of the cellular base station BS-2, for example, the BSID is BS-2.
  • Step S1304 The terminal queries the WLAN coverage area information in the coverage area of the base station according to the obtained base station information, for example, the WLAN coverage area information query table stored in the WLAN information storage unit by the cellular information processing unit according to the obtained BSID.
  • the WLAN coverage area information lookup table stored by the WLAN information storage unit records the cell base station information, the WLAN information, and the distance of the WLAN hotspot from the cellular base station, and may have the style shown in Table 1, but is not limited to the style.
  • the table may also record the latitude and longitude information of the cellular base station and the WLAN hot and longitude latitude and longitude information, or the average signal strength of the WLAN hotspot in the coverage area of the cellular base station, and other information that can be used to determine the location of the WLAN coverage area within the cellular coverage area.
  • Step S1306 After querying the WLAN coverage area information in the coverage area of the base station, the terminal determines that there is a WLAN in the coverage area of the base station, but the WLAN coverage area is far away from the base station. For example, after the cellular information processing unit queries the WLAN coverage area information lookup table, it is found that there is a WLAN in the coverage area of the base station where the BSID is BS-2, and the SSID is wlanapOOl, but the WLAN coverage area is far from the base station.
  • Step S1308 After the terminal determines that the WLAN exists in the coverage area of the base station, the terminal starts the WLAN function.
  • the cellular information processing unit determines that there is a WLAN with an SSID of wlanapOO1 in the coverage area of the BS-2, and the cellular information processing unit sends a message to the power saving management unit, notifying that the power saving management unit can activate the WLAN function, and the power saving management unit receives the message. After that, start the WLAN function on the terminal.
  • Step S1310 After the terminal starts the WLAN function, because the WLAN coverage area is determined to be far away from the base station, the terminal can set the WLAN scanning period to a long period, enter the WLAN scan, and greatly reduce the scanning frequency.
  • the power save management unit activates the WLAN function and sets the WLAN scan period to a long period, such as a minute scan interval, which greatly reduces the number of scans for further power savings.
  • Step S1312 The terminal notifies the user that there is an available WLAN in the current location. For example, after completing the scan period setting, the power-saving management unit instructs the WLAN information advertisement unit to issue a notification to the user, and announces that the SSID of the available WLAN and WLAN is wlanapOOl, the signal strength of the WLAN, and the like.
  • FIG. 14 is a schematic diagram of a description of a scenario of a WLAN access method based on a cell according to a third embodiment of the present invention. As shown in FIG. 14, in this scenario, a WLAN coverage area exists in a cell coverage area. 15 is a flowchart of a cellular-based WLAN access method according to Embodiment 3 of the present invention. As shown in FIG. 15, the method includes the following steps:
  • Step S1502 The multimode mobile terminal acquires base station information of the current cell coverage area. For example, the terminal moves into the coverage area of the cellular base station BS-3, and the cellular information acquiring unit on the terminal acquires information of the cellular base station BS-3, for example, the BSID is BS-3.
  • Step S1504 The terminal queries, according to the obtained base station information, the WLAN coverage area information in the coverage area of the base station, for example, the WLAN coverage area information query table stored by the cellular information processing unit in the WLAN information storage unit according to the obtained BSID.
  • the WLAN coverage area information lookup table stored by the WLAN information storage unit records the cell base station information, the WLAN information, and the distance of the WLAN hotspot from the cellular base station, and may have the style shown in Table 1, but is not limited to the style.
  • the table may also record the latitude and longitude information of the cellular base station and the latitude and longitude information of the WLAN hotspot, or the WLAN hotspot in the coverage area of the cellular base station Other information such as average signal strength that can be used to determine the location of the WLAN coverage area within the cellular coverage area.
  • Step S1506 After querying the WLAN coverage area information in the coverage area of the base station, the terminal determines that there is a WLAN in the coverage area of the base station, and the WLAN coverage area is close to the base station. For example, after the cellular information processing unit queries the WLAN coverage area information lookup table, it is found that there is a WLAN in the coverage area of the base station where the BSID is BS-3, and the SSID is wlanap002, wlanap003, wlanap004, but the WLAN coverage area is closer to the base station. .
  • Step S1508 After the terminal determines that the WLAN exists in the coverage area of the base station, the terminal starts the WLAN function. For example, the cellular information processing unit determines that there is a WLAN with the SSIDs wlanap002, wlanap003, and wlanap004 in the coverage area of the BS-3, and the cellular information processing unit sends a message to the power saving management unit to notify the power saving management unit that the WLAN function can be activated, and the power saving management is performed. After receiving the message, the unit starts the WLAN function on the terminal.
  • the cellular information processing unit determines that there is a WLAN with the SSIDs wlanap002, wlanap003, and wlanap004 in the coverage area of the BS-3, and the cellular information processing unit sends a message to the power saving management unit to notify the power saving management unit that the WLAN function can be activated, and the power saving management is performed. After receiving the message, the unit starts the WLAN function on the terminal.
  • Step S1510 After the terminal starts the WLAN function, the terminal can set the WLAN scanning period to a short period to enter the WLAN scanning, because it is determined that the WLAN coverage area is close to the base station. For example, the power save management unit activates the WLAN function and sets the WLAN scan period to a short period, such as a second scan interval.
  • Step S1512 The terminal notifies the user that there is an available WLAN in the current location. For example, after completing the scan period setting, the power-saving management unit instructs the WLAN information advertisement unit to issue a notification to the user, and announces that there are available WLAN and WLAN SSIDs as wlanap002, wlanap003, wlanap004, and the signal strength of the WLAN.
  • FIG. 16 is a flow chart of updating a WLAN coverage area information lookup table according to Embodiment 4 of the present invention. As shown in FIG. 16, the flow includes the following steps.
  • Step S 1602 After the terminal accesses the WLAN, the terminal may send a WLAN coverage area information query table version query message to the network side, where the message includes a version of the WLAN coverage area information query table stored by the terminal.
  • Step S1604 After receiving the version query message sent by the terminal, the network side queries whether there is a new version of the WLAN coverage area information query table in the network, and returns the query result to the terminal. E.g, After the information of the cellular base station changes, or the WLAN hotspot deployment changes, the network side updates the WLAN coverage area information lookup table, and the network side has a newer version of the WLAN coverage area information query table.
  • the query response returned by the network carries the original version number or other identifier, indicating that the terminal has no updated version.
  • the query response returned by the network carries an updated version number or other identifier, indicating that the terminal is ready to accept the query table update.
  • Step S1606 The network side sends a WLAN coverage area information lookup table update part to the terminal.
  • software is also provided for performing the technical solutions described in the above embodiments and alternative embodiments.
  • a storage medium is also provided, the software being stored, including but not limited to an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • identifier information of a cellular base station where the mobile terminal is located and querying, according to the identifier information, whether the mobile terminal is in a coverage area of the WLAN; If yes, the WLAN hotspot search function of the mobile terminal is activated, and the scanning frequency of the WLAN hotspot search function is adjusted according to the coverage area information of the WLAN, where the coverage area information includes location information and/or wireless environment information.
  • the invention solves the problem that the mobile terminal performs automatic WLAN discovery and consumes power by using the WLAN in the related technology, and reduces the power consumption of the mobile terminal.

Abstract

一种无线局域网WLAN热点搜索的控制方法和装置,该方法包括:获取移动终端所在的蜂窝基站的标识信息;根据所述标识信息查询所述移动终端是否处于WLAN的覆盖区域中;在查询结果为是的情况下,启动所述移动终端的WLAN热点搜索功能,并根据所述WLAN的覆盖区域信息调整所述WLAN热点搜索功能的扫描频率,其中,所述覆盖区域信息包括位置信息和/或无线环境信息。上述技术方案可以解决移动终端如何进行WLAN自动发现以及使用WLAN较耗电的问题。

Description

WLA 热点搜索的控制方法及装置
技术领域
本发明涉及无线局域网 (WLAN, Wireless Local Area Network )热点搜 索技术领域, 具体而言, 涉及一种 WLAN热点搜索的控制方法及装置。
背景技术
WLAN提供了高速数据传输和成本低廉的接入服务,而蜂窝通信(例如: 码分多址(CDMA, Code Division Multiple Access ) )则提供了大覆盖区域 和可靠传输的接入服务。现在, 具备多种无线接入方式(例如: WLAN和 3G (第三代移动通信技术, 3rd-generation ) ) 的通信终端成为了主流趋势, 此 类终端被称之为 "多模终端" 。
从多模移动终端用户的使用习惯来看,尽管 WLAN传输速率高、成本低 廉,多模移动终端用户更倾向于保持多模终端的 WLAN功能处于常关闭状态, 产生上述用户行为通常是由于:
1)用户对 WLAN覆盖区域的不可知。图 1是根据相关技术的蜂窝通信与 WLAN部署示意图, 如图 1所示, 相对于蜂窝通信, WLAN是一种更新的无 线接入方式, 目前只能以热点的形式运营部署, 并不像蜂窝通信实现了大区 域的覆盖。 用户通过终端可以很轻易的获知是否位于蜂窝覆盖区域, 而对于 WLAN, 除非存在显著的标识告知用户, 否则用户无法了解是否进入 WLAN 覆盖区。
2)用户对 WLAN耗电的考虑。 除去标识告知用户存在 WLAN覆盖, 用 户获知 WLAN覆盖的唯一可行方法是利用 WLAN扫描功能,而 WLAN扫描 是一个相对耗电的过程, 因为扫描过程中, 终端需要收发探测帧或侦听 WLAN信标帧, 同时, WLAN扫描间隔为毫秒级,在相对短的时间里 WLAN 会发起数量可观的扫描, 但是这些扫描结果时常是让人沮丧的 (例如: 用户 所在位置不存在任何可用的 WLAN )。 移动终端通常是依赖电池工作的, 用 户出于保证移动终端上其他业务(例如: 电话、 短信) 的考虑, 必然选择少 用或停用较耗电的功能 (例如: WLAN ) 。 因此针对移动终端的 WLAN自动发现和 WLAN节电问题, 目前缺乏行 之有效的解决方案。 发明内容
针对相关技术中移动终端如何进行 WLAN自动发现以及使用 WLAN较 耗电问题,本发明实施例提供了一种 WLAN热点搜索的控制方法及装置,用 于解决上述问题。
为解决上述技术方案, 釆用如下技术方案:
一种无线局域网 WLAN热点搜索的控制方法, 包括:
获取移动终端所在的蜂窝基站的标识信息;
根据所述标识信息查询所述移动终端是否处于 WLAN的覆盖区域中; 在查询结果为是的情况下, 启动所述移动终端的 WLAN热点搜索功能, 并根据所述 WLAN的覆盖区域信息调整所述 WLAN热点搜索功能的扫描频 率, 其中, 所述覆盖区域信息包括位置信息和 /或无线环境信息。
可选地,根据所述标识信息查询所述移动终端是否处于 WLAN的覆盖区 域中的步骤包括:
获取蜂窝基站的标识信息与 WLAN的覆盖区域的对应关系表; 查询所述移动终端所在的蜂窝基站的标识信息在所述对应关系表中是否 存在对应的 WLAN的覆盖区域;
如果存在对应的 WLAN的覆盖区域, 确定所述移动终端处于 WLAN的 覆盖区域中。
可选地, 所述控制方法还包括:
在所述移动终端接入 WLAN之后, 判断是否需要更新所述对应关系表; 根据判断结果对所述对应关系表进行更新处理。
可选地, 判断是否需要更新所述对应关系表的步骤包括:
向网络侧发送版本查询消息, 其中, 所述版本查询消息中包含所述对应 关系表的第一版本标识; 接收所述网络侧发来的响应消息, 如果所述响应消息中包含的第二版本 标识与第一版本标识不同, 确定需要更新所述对应关系表; 如果所述响应消 息中包含的第二版本标识与第一版本标识相同, 确定不需要更新所述对应关 系表。
可选地,在所述位置信息为所述 WLAN与所述蜂窝基站的矢量距离的情 况下, 根据所述 WLAN的覆盖区域信息调整所述 WLAN热点搜索功能的扫 描频率包括:
在所述 WLAN 与所述蜂窝基站的矢量距离大于或等于预设阔值的情况 下, 降低所述 WLAN热点搜索功能的扫描频率;
在所述 WLAN与所述蜂窝基站的矢量距离小于预设阔值的情况下,提高 所述 WLAN热点搜索功能的扫描频率。
可选地, 在所述无线环境信息为所述 WLAN的无线信号强度的情况下, 根据所述 WLAN的覆盖区域信息调整所述 WLAN热点搜索功能的扫描频率 的步骤包括:
在所述 WLAN的无线信号强度大于或等于预设阔值的情况下,提高所述
WLAN热点搜索功能的扫描频率;
在所述 WLAN的无线信号强度小于预设阔值的情况下,降低所述 WLAN 热点搜索功能的扫描频率。
一种无线局域网 WLAN热点搜索的控制装置,包括获取模块、查询模块、 启动模块及调整模块, 其中: 所述获取模块设置成: 获取移动终端所在的蜂窝基站的标识信息; 所述查询模块设置成: 根据所述标识信息查询所述移动终端是否处于 WLAN的覆盖区域中;
所述启动模块设置成: 在所述查询模块的查询结果为是的情况下, 启动 所述移动终端的 WLAN热点搜索功能;
所述调整模块设置成:根据所述 WLAN的覆盖区域信息调整所述 WLAN 热点搜索功能的扫描频率, 其中, 所述覆盖区域信息包括位置信息和 /或无线 环境信息。
可选地, 所述查询模块包括获取单元、 查询单元和确定单元, 其中: 所述获取单元设置成:获取蜂窝基站的标识信息与 WLAN的覆盖区域的 对应关系表;
所述查询单元设置成: 查询所述移动终端所在的蜂窝基站的标识信息在 所述对应关系表中是否存在对应的 WLAN的覆盖区域;
所述确定单元设置成:如果存在对应的 WLAN的覆盖区域,确定所述移 动终端处于 WLAN的覆盖区域中。
可选地, 所述控制装置还包括判断模块和更新模块, 其中:
所述判断模块设置成:在所述移动终端接入 WLAN之后,判断是否需要 更新所述对应关系表;
所述更新模块设置成: 根据所述判断模块的判断结果对所述对应关系表 进行更新处理。
可选地, 所述判断模块包括发送单元和接收单元, 其中:
所述发送单元设置成: 向网络侧发送版本查询消息, 其中, 所述版本查 询消息中包含所述对应关系表的第一版本标识;
所述接收单元设置成: 接收所述网络侧发来的响应消息, 如果所述响应 消息中包含的第二版本标识与第一版本标识不同, 确定需要更新所述对应关 系表; 如果所述响应消息中包含的第二版本标识与第一版本标识相同, 确定 不需要更新所述对应关系表。
通过上述技术方案, 釆用获取移动终端所在的蜂窝基站的标识信息; 根 据该标识信息查询该移动终端是否处于 WLAN的覆盖区域中;在查询结果为 是的情况下, 启动该移动终端的 WLAN热点搜索功能, 并根据该 WLAN的 覆盖区域信息调整该 WLAN热点搜索功能的扫描频率,其中,该覆盖区域信 息包括位置信息和 /或无线环境信息的方式,解决了相关技术中移动终端如何 进行 WLAN自动发现以及使用 WLAN较耗电问题, 降低了移动终端的耗电 量。 附图概述
此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中:
图 1是根据相关技术的蜂窝通信与 WLAN部署示意图;
图 2是根据本发明实施例的 WLAN热点搜索的控制方法的流程图; 图 3是根据本发明实施例的 WLAN热点搜索的控制装置的结构框图; 图 4是根据本发明实施例的查询模块的优选结构框图;
图 5是根据本发明实施例的 WLAN热点搜索的控制装置的优选结构框图 一;
图 6是根据本发明实施例的判断模块的优选结构框图;
图 7是根据本发明实施例的 WLAN热点搜索的控制装置的优选结构框图 图 8是根据本发明优选实施例的基于蜂窝的 WLAN接入方法的流程图; 图 9是根据本发明优选实施例的基于蜂窝的 WLAN接入系统的结构框图; 图 10是根据本发明实施例一的基于蜂窝的 WLAN接入方法的描述场景 示意图;
图 11是根据本发明实施例一的基于蜂窝的 WLAN接入方法的流程图; 图 12是根据本发明实施例二的基于蜂窝的 WLAN接入方法的描述场景 示意图;
图 13是根据本发明实施例二的基于蜂窝的 WLAN接入方法的流程图; 图 14是根据本发明实施例三的基于蜂窝的 WLAN接入方法的描述场景 示意图;
图 15是根据本发明实施例三的基于蜂窝的 WLAN接入方法的流程图; 图 16是根据本发明实施例四的更新 WLAN覆盖区域信息查询表的流程 图。 本发明的较佳实施方式
下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。
在本实施例中提供了一种 WLAN热点搜索的控制方法,图 2是根据本发 明实施例的 WLAN热点搜索的控制方法的流程图,如图 2所示,该方法包括 如下步骤:
S202 , 获取移动终端所在的蜂窝基站的标识信息;
S204,根据该标识信息查询该移动终端是否处于 WLAN的覆盖区域中;
S206, 在查询结果为是的情况下, 启动该移动终端的 WLAN热点搜索 功能, 并根据该 WLAN的覆盖区域信息调整该 WLAN热点搜索功能的扫描 频率, 其中, 该覆盖区域信息包括位置信息和 /或无线环境信息。
本实施例通过上述步骤, 根据移动终端所在的蜂窝基站的标识信息查询 到该移动终端是否处于 WLAN的覆盖区域中,如果在 WLAN的覆盖区域中, 则开启 WLAN 热点搜索功能, 并根据该 WLAN 的覆盖区域信息调整该 WLAN热点搜索功能的扫描频率, 由于移动终端的蜂窝通信功能通常都会保 持开启,而通过蜂窝基站的标识信息来获取移动终端是否处于 WLAN的覆盖 范围中并以此启动 WLAN扫描功能, 就能够避免移动终端在未处于 WLAN 的覆盖范围的情况下无谓进行 WLAN扫描的情况出现, 并且根据该 WLAN 的覆盖区域信息调整该 WLAN热点搜索功能的扫描频率,从而能够对扫描频 率进行灵活控制,解决了相关技术中移动终端如何进行 WLAN自动发现以及 使用 WLAN较耗电问题, 降低了移动终端的耗电量。
可选地, 移动终端可以获取当前所在小区的基站的标识信息, 也可能获 取到所处位置相邻基站的标识信息作为该移动终端所在的蜂窝基站的标识信 息。 移动终端可以在接入基站后获取基站的标识信息, 也可以无需接入直接 获取蜂窝基站信息。
作为一种优选实施方式, 可以通过查表的方式来根据标识信息查询移动 终端是否处于 WLAN的覆盖区域中。例如,可以首先获取蜂窝基站的标识信 息与 WLAN的覆盖区域的对应关系表;然后查询移动终端接入的蜂窝基站的 标识信息在该对应关系表中是否存在对应的 WLAN的覆盖区域。如果存在对 应的 WLAN的覆盖区域, 则可以说明该移动终端正处于 WLAN的覆盖区域 中, 从而可以开启 WLAN热点搜索功能; 如果不存在对应的 WLAN的覆盖 区域,则可以说明该移动终端未处于 WLAN的覆盖区域中,从而可以重复执 行上述步骤。
可选地,上述对应关系表也可以称为 WLAN覆盖区域信息查询表,该表 可以通过网络侧获取,也可以预先存储在移动终端中,并在接入 WLAN网络 后从网络侧进行更新。 例如, 在移动终端接入 WLAN之后, 可以判断是否需 要更新对应关系表, 并根据判断结果对该对应关系表进行更新处理。
可选地, 判断对应关系表是否需要更新可以釆用如下方式进行: 首先, 移动终端可以将保存在本地的上述对应关系表的版本标识(简称为第一版本 标识)携带在版本查询消息中发送给网络侧; 网络侧在接收到该版本查询消 息后, 可以将第一版本标识与网络侧的新的对应关系表的版本标识(简称为 第二版本标识)进行对比。 如果版本标识相同, 则无需更新, 网络侧可以在返回给移动终端的响应 消息中不携带版本标识, 或者也可以携带与第一版本标识相同的该第二版本 标识, 移动终端在接收到网络侧发来的响应消息后, 确定不需要更新该对应 关系表;
如果版本标识不同, 则需要更新, 网络侧可以在返回给移动终端的响应 消息中携带与第一版本标识不相同的该第二版本标识, 移动终端在接收到网 络侧发来的该响应消息后, 确定需要更新该对应关系表。
作为一种优选实施方式, 根据 WLAN的覆盖区域信息对 WLAN热点搜 索功能的扫描频率进行调整的方式可以按照以下方式进行:根据 WLAN的位 置信息和 /或根据 WLAN的无线环境信息对 WLAN热点搜索功能的扫描频率 进行调整。
其中, WLAN的位置信息可以是 WLAN热点与蜂窝基站之间的距离, 或者也可以是 WLAN 热点位于蜂窝基站的方向, 当然也可以是其他表现 WLAN与蜂窝基站的物理位置关系的信息。根据 WLAN的位置信息对 WLAN 热点搜索功能的扫描频率进行调整可以有多种, 例如, 在覆盖区域信息包括 的位置信息是 WLAN与蜂窝基站的矢量距离的情况下, 当 WLAN与蜂窝基 站距离较远时,可以降低 WLAN热点搜索功能的扫描频率,以增大扫描周期, 从而节约耗电量; 当 WLAN与蜂窝基站距离较近时, 可以增大 WLAN热点 搜索功能的扫描频率,以降低扫描周期,从而更快速地搜索到可用的 WLAN, 方便用户使用。
WLAN的无线环境信息可以是 WLAN在蜂窝基站覆盖的平均信号强度, 或者也可以是 WLAN的覆盖半径, 当然也可以是其他表现 WLAN在该蜂窝 基站覆盖的信号环境的信息。 根据 WLAN的无线环境信息对 WLAN热点搜 索功能的扫描频率进行调整可以有多种, 例如, 在覆盖区域信息包括的无线 环境信息是 WLAN的平均无线信号强度的情况下, 当 WLAN在该蜂窝基站 的平均信号强度较弱时,可以降低 WLAN热点搜索功能的扫描频率, 以增大 扫描周期,从而节约耗电量;当 WLAN在该蜂窝基站的平均信号强度较强时, 可以增大 WLAN热点搜索功能的扫描频率, 以降低扫描周期,从而更快速地 搜索到可用的 WLAN, 方便用户使用。
对应于上述方法, 在本实施例中还提供了一种 WLAN扫描的控制装置, 可以位于移动终端中, 该装置用于实现上述实施例及优选实施方式, 已经进 行过说明的不再赘述。 如以下所使用的, 术语 "模块" 可以实现预定功能的 软件和 /或硬件的组合。 尽管以下实施例所描述的装置较佳地以软件来实现 , 但是硬件, 或者软件和硬件的组合的实现也是可能并被构想的。
图 3是根据本发明实施例的 WLAN热点搜索的控制装置的结构框图,如 图 3所示, 该装置包括: 获取模块 32、 查询模块 34、 启动模块 36和调整模 块 38, 下面对各个模块进行详细说明。
获取模块 32设置成: 获取移动终端所在的蜂窝基站的标识信息; 查询模块 34, 与获取模块 32相连, 设置成: 根据获取模块 32获取到的 标识信息查询移动终端是否处于 WLAN的覆盖区域中;
启动模块 36, 与查询模块 34相连, 设置成: 在查询模块 34的查询结果 为是的情况下, 启动该移动终端的 WLAN热点搜索功能;
调整模块 38, 与启动模块 36相连, 设置成: 根据 WLAN的覆盖区域信 息调整 WLAN热点搜索功能的扫描频率,其中,该覆盖区域信息包括位置信 息和 /或无线环境信息。
本实施例通过上述模块,根据获取模块 32获取到的移动终端所在的蜂窝 基站的标识信息通过查询模块 34查询到该移动终端是否处于 WLAN的覆盖 区域中,如果在 WLAN的覆盖区域中,则使用启动模块 36开启 WLAN热点 搜索功能,并使用调整模块 38根据该 WLAN的覆盖区域信息调整该 WLAN 热点搜索功能的扫描频率,由于移动终端的蜂窝通信功能通常都会保持开启, 而通过蜂窝基站的标识信息来获取移动终端是否处于 WLAN 的覆盖范围中 并以此启动 WLAN扫描功能, 就能够避免移动终端在未处于 WLAN的覆盖 范围的情况下无谓进行 WLAN扫描的情况出现, 并且根据该 WLAN的覆盖 区域信息调整该 WLAN热点搜索功能的扫描频率,从而能够对扫描频率进行 灵活控制, 解决了相关技术中移动终端如何进行 WLAN 自动发现以及使用 WLAN较耗电问题, 降低了移动终端的耗电量。
图 4是根据本发明实施例的查询模块 34的优选结构框图, 如图 4所示, 查询模块 34可以包括获取单元 342、 查询单元 344和确定单元 346 , 其中: 获取单元 342设置成:获取蜂窝基站的标识信息与 WLAN的覆盖区域的 对应关系表;
查询单元 344, 与获取单元 342相连, 设置成: 查询移动终端所在的蜂 窝基站的标识信息在获取单元 342 获取的对应关系表中是否存在对应的 WLAN的覆盖区域;
确定单元 346, 与查询单元 344相连, 设置成: 如果存在对应的 WLAN 的覆盖区域, 确定移动终端处于 WLAN的覆盖区域中。
图 5是根据本发明实施例的 WLAN热点搜索的控制装置的优选结构框图 一, 如图 5所示, 该装置还可以包括判断模块 52和更新模块 54, 其中: 判断模块 52, 与启动模块 36相连, 设置成: 在移动终端接入 WLAN之 后, 判断是否需要更新对应关系表;
更新模块 54, 与判断模块 52相连, 设置成: 根据判断模块 52的判断结 果对该对应关系表进行更新处理。
图 6是根据本发明实施例的判断模块 52的优选结构框图, 如图 6所示, 判断模块 52可以包括发送单元 522和接收单元 524, 其中:
发送单元 522设置成: 向网络侧发送版本查询消息, 其中, 版本查询消 息中包含对应关系表的第一版本标识;
接收单元 524 , 与发送单元 522相连, 设置成: 接收网络侧发来的响应 消息, 如果响应消息中包含的第二版本标识与第一版本标识不同, 确定需要 更新对应关系表;如果响应消息中包含的第二版本标识与第一版本标识相同, 确定不需要更新对应关系表。
图 7是根据本发明实施例的调整模块 38的优选结构框图二,如图 7所示, 调整模块 38可以包括增大单元 382和减小单元 384, 其中:
增大单元 382设置成: 提高 WLAN热点搜索功能的扫描频率; 减小单元 384设置成: 降低 WLAN热点搜索功能的扫描频率。
下面结合优选实施例进行说明, 以下优选实施例结合了上述实施例及其 优选实施方式。
为了多模移动终端用户能够享受 WLAN高速传输、成本低廉的优势,需 要解决多模移动终端中 WLAN自动发现和节电问题, 因此,在以下优选实施 例中提出了一种基于蜂窝的 WLAN接入系统和方法,主要涉及多模移动终端 利用获取的蜂窝基站信息感知 WLAN覆盖区域并在此过程中实现节电的系 统和方法。
图 8是根据本发明优选实施例的基于蜂窝的 WLAN接入方法的流程图, 用于解决多模终端中 WLAN网络自动发现和节电问题,如图 8所示,该方法 包括如下步骤:
步骤 S802, 多模移动终端存储 WLAN覆盖区域信息查询表; WLAN覆 盖区域信息查询表中蜂窝基站标识与 WLAN覆盖区域形成映射关系,并包含 蜂窝基站距离 WLAN覆盖区域的地理关系, 及 WLAN覆盖区域无线信息; 移动终端利用蜂窝功能获取蜂窝基站标识信息, 例如, 该标识信息可以是蜂 窝基站的 ID、 蜂窝基站的位置信息等能够标识该蜂窝基站的信息。
步骤 S804, 根据基站标识信息查询 WLAN覆盖区域信息。
步骤 S806 ,判断是否靠近 WLAN覆盖区域,进一步判断是否启动 WLAN 扫描; 如果靠近 WLAN覆盖区域, 则进入步骤 S808 , 否则返回步骤 S802。 步骤 S808, 启动 WLAN功能。
步骤 S810, 进一步地, 移动终端还可以根据 WLAN覆盖区域信息, 自 动调整扫描周期, 实现进一步节电。
步骤 S812, 通告用户存在可用 WLAN。
可选地,终端在接入 WLAN后,还可以将向网络查询更新版本的 WLAN 覆盖区域信息查询表并根据查询结果进行更新。
图 9是根据本发明可选实施例的基于蜂窝的 WLAN接入系统的结构框图, 用于解决多模终端中 WLAN网络自动发现和节电问题,如图 9所示,该系统 可以包括蜂窝信息获取单元、 WLAN信息存储单元、 蜂窝信息处理单元、 WLAN信息通告单元及节电管理单元, 其中:
蜂窝信息获取单元 (实现了获取模块 32的功能)设置成: 获取蜂窝通信 基站信息;
WLAN信息存储单元设置成: 存储 WLAN覆盖区域信息查询表; 蜂窝信息处理单元 (实现了查询模块 34的功能)设置成: 处理从蜂窝信 息获取单元获得的蜂窝信息;
WLAN信息通告单元设置成: 向用户通告当前位置存在可用 WLAN; 节电管理单元(实现了启动模块 36和调整模块 38的功能)设置成: 管 理 WLAN功能及调整 WLAN节电。
在以下的可选实施例中, 为了方便描述, 将蜂窝基站标识(Base Station
ID ) 简称为 BSID; 将蜂窝基站 ( Base Station ) 简称为 BS。
并且, 在以下可选实施例中, 以多模移动终端至少具备蜂窝通信功能和 WLAN功能, 并且 WLAN功能处于常关闭状态, 而蜂窝通信功能处于常在 线状态为例进行说明。
其中,多模移动终端对于判断 WLAN覆盖区域是否靠近或远离基站的标 准可以由用户定制或无线接入服务提供商等预配置。
此外, WLAN 覆盖区域信息查询表更新的时机可以是当蜂窝基站或 WLAN热点发生变更时, 终端侧通过网络对存储的 WLAN覆盖区域信息查 询表进行调整。
实施例一
图 10是根据本发明实施例一的基于蜂窝的 WLAN接入方法的描述场景 示意图, 如图 10所示, 在该场景下, 蜂窝覆盖区内无 WLAN覆盖区。 图 11 是根据本发明实施例一的基于蜂窝的 WLAN接入方法的流程图, 如图 11所 示, 该方法包括以下步骤:
步骤 S1102, 多模移动终端获取当前所在蜂窝覆盖区域的基站信息。 例 如: 终端移动进入蜂窝基站 BS-1 覆盖区域, 终端上的蜂窝信息获取单元获 取蜂窝基站 BS-1的信息, 如, BSID为 BS-1。
步骤 S1104,终端根据获得的基站信息,查询该基站覆盖区域内的 WLAN 覆盖区域信息, 例如: 蜂窝信息处理单元根据获得的 BSID, 在 WLAN信息 存储单元存储的 WLAN覆盖区域信息查询表。
可选地, 表一是根据本发明实施例一的 WLAN覆盖区域信息查询表, WLAN信息存储单元存储的 WLAN覆盖区域信息查询表记录了蜂窝基站信 息, WLAN信息以及 WLAN热点距离蜂窝基站的距离, 可以具有如表一所 示的样式, 但不局限于该样式, 该表可能还记录了蜂窝基站经纬度信息及 WLAN热点经纬度信息, 或该蜂窝基站覆盖区域内该 WLAN热点平均信号 强度等其他可以用于确定蜂窝覆盖区域内的 WLAN覆盖区位置的信息。
表一
小区信息(Cellular
W LAN信息 ( WLAN Inform ation )
N O . Inform ation)
B ase Station ID S SID M AC Avg RS SI 距离(Distance)
1 B S- 1 wlanapOO 1 00. 1 1 50 500
wlanapOO 1 00. 1 1 85 100
2 B S-2 wlanap002 00. 1 1 75 200
wlanap004 00. 1 1 90 100
n 0 0 0 步骤 S1106, 查询该基站覆盖区域内的 WLAN覆盖区域信息后, 终端发 现该基站覆盖区域内不存在 WLAN,则保持终端 WLAN功能处于关闭状态, 并等待终端进入新的蜂窝覆盖区域后, 重复执行步骤 S1102。 例如: 蜂窝信 息处理单元查询该 WLAN覆盖区域信息查询表后, 发现在 BSID为 BS-1的 基站覆盖区域内, 不存在 WLAN覆盖区, 则蜂窝信息处理单元退出, 等待蜂 窝信息获取单元获得新的蜂窝基站信息。
实施例二
图 12是根据本发明实施例二的基于蜂窝的 WLAN接入方法的描述场景 示意图, 如图 12所示, 在该场景下, 蜂窝覆盖区内存在 WLAN覆盖区。 图 13是根据本发明实施例二的基于蜂窝的 WLAN接入方法的流程图, 如图 13 所示, 该方法包括以下步骤:
步骤 S1302, 多模移动终端获取当前所在蜂窝覆盖区域的基站信息。 例 如: 终端移动进入蜂窝基站 BS-2覆盖区域, 终端上的蜂窝信息获取单元获 取蜂窝基站 BS-2的标识, 如, BSID为 BS-2。
步骤 S1304,终端根据获得的基站信息,查询该基站覆盖区域内的 WLAN 覆盖区域信息, 例如: 蜂窝信息处理单元根据获得的 BSID, 在 WLAN信息 存储单元存储的 WLAN覆盖区域信息查询表。
可选地, WLAN信息存储单元存储的 WLAN覆盖区域信息查询表记录 了蜂窝基站信息, WLAN信息以及 WLAN热点距离蜂窝基站的距离, 可以 具有表一所示的样式, 但不局限于该样式, 该表可能还记录了蜂窝基站经纬 度信息及 WLAN热点经纬度信息, 或该蜂窝基站覆盖区域内该 WLAN热点 平均信号强度等其他可以用于确定蜂窝覆盖区域内的 WLAN覆盖区位置的 信息。
步骤 S1306, 查询该基站覆盖区域内的 WLAN覆盖区域信息后, 终端判 断该基站覆盖区域内存在 WLAN ,但 WLAN覆盖区域距离该基站距离较远。 例如:蜂窝信息处理单元查询该 WLAN覆盖区域信息查询表后,发现在 BSID 为 BS-2的基站覆盖区域内, 存在 WLAN, SSID为 wlanapOOl , 但该 WLAN 覆盖区距离基站较远。 步骤 S1308 , 终端判断该基站覆盖区域内存在 WLAN后, 终端启动 WLAN功能。 例如: 蜂窝信息处理单元判断 BS-2覆盖区域内存在 SSID为 wlanapOOl的 WLAN, 则蜂窝信息处理单元向节电管理单元发出消息, 通知 节电管理单元可以启动 WLAN功能,节电管理单元收到消息后,启动终端上 的 WLAN功能。
步骤 S1310, 终端启动 WLAN功能后, 由于判断 WLAN覆盖区域距离 该基站距离较远, 终端可以设置 WLAN扫描周期为长周期, 进入 WLAN扫 描, 大幅降低扫描频率。例如: 节电管理单元启动 WLAN功能, 并将 WLAN 扫描周期设置为长周期, 如, 分钟级扫描间隔, 使得扫描次数大幅降低, 实 现进一步节电。
步骤 S1312, 终端通告用户, 当前位置存在可用的 WLAN。 例如: 节电 管理单元在完成扫描周期设置后,指示 WLAN信息通告单元向用户发出通告, 通告周围存在可用 WLAN及 WLAN的 SSID为 wlanapOOl , 该 WLAN的信 号强度等。
实施例三
图 14是根据本发明实施例三的基于蜂窝的 WLAN接入方法的描述场景 示意图, 如图 14所示, 在该场景下, 蜂窝覆盖区内存在 WLAN覆盖区。 图 15是根据本发明实施例三的基于蜂窝的 WLAN接入方法的流程图, 如图 15 所示, 该方法包括以下步骤:
步骤 S1502, 多模移动终端获取当前所在蜂窝覆盖区域的基站信息。 例 如: 终端移动进入蜂窝基站 BS-3 覆盖区域, 终端上的蜂窝信息获取单元获 取蜂窝基站 BS-3的信息, 如, BSID为 BS-3。
步骤 S1504,终端根据获得的基站信息,查询该基站覆盖区域内的 WLAN 覆盖区域信息, 例如: 蜂窝信息处理单元根据获得的 BSID, 在 WLAN信息 存储单元存储的 WLAN覆盖区域信息查询表。
可选地, WLAN信息存储单元存储的 WLAN覆盖区域信息查询表记录 了蜂窝基站信息, WLAN信息以及 WLAN热点距离蜂窝基站的距离, 可以 具有表一所示的样式, 但不局限于该样式, 该表可能还记录了蜂窝基站经纬 度信息及 WLAN热点经纬度信息, 或该蜂窝基站覆盖区域内该 WLAN热点 平均信号强度等其他可以用于确定蜂窝覆盖区域内的 WLAN覆盖区位置的 信息。
步骤 S1506, 查询该基站覆盖区域内的 WLAN覆盖区域信息后, 终端判 断该基站覆盖区域内存在 WLAN , WLAN覆盖区域距离靠近该基站。 例如: 蜂窝信息处理单元查询该 WLAN覆盖区域信息查询表后, 发现在 BSID为 BS-3 的基站覆盖区域内, 存在 WLAN, SSID 为 wlanap002、 wlanap003、 wlanap004 , 但该 WLAN覆盖区距离基站均较近。
步骤 S1508 , 终端判断该基站覆盖区域内存在 WLAN后, 终端启动 WLAN功能。 例如: 蜂窝信息处理单元判断 BS-3覆盖区域内存在 SSID为 wlanap002、 wlanap003、 wlanap004 的 WLAN, 则蜂窝信息处理单元向节电 管理单元发出消息,通知节电管理单元可启动 WLAN功能,节电管理单元收 到消息后, 启动终端上的 WLAN功能。
步骤 S1510, 终端启动 WLAN功能后, 由于判断 WLAN覆盖区域距离 靠近该基站, 终端可以设置 WLAN扫描周期为短周期, 进入 WLAN扫描。 例如:节电管理单元启动 WLAN功能,并将 WLAN扫描周期设置为短周期, 如, 秒级扫描间隔。
步骤 S1512, 终端通告用户, 当前位置存在可用的 WLAN。 例如: 节电 管理单元在完成扫描周期设置后,指示 WLAN信息通告单元向用户发出通告, 通告周围存在可用 WLAN及 WLAN的 SSID为 wlanap002、 wlanap003、 wlanap004, 该 WLAN的信号强度等。
实施例四
图 16是根据本发明实施例四的更新 WLAN覆盖区域信息查询表的流程 图, 如图 16所示, 该流程包括以下步骤。
步骤 S 1602 , 终端接入 WLAN后, 终端可以向网络侧发送 WLAN覆盖 区域信息查询表版本查询消息,该消息中包含终端存储的 WLAN覆盖区域信 息查询表版本。
步骤 S1604, 网络侧收到终端发出的版本查询消息后, 查询网络中是否 有更新版本的 WLAN覆盖区域信息查询表,并将查询结果返回给终端。例如, 当蜂窝基站信息发生变更, 或 WLAN 热点部署发生变化后, 网络侧更新了 WLAN覆盖区域信息查询表, 则网络侧有更新版本的 WLAN覆盖区域信息 查询表。
可选地, 当网络中无更新版本的 WLAN覆盖区域信息查询表, 网络返回 的查询响应中, 携带原版本号或其他标识, 指示终端无更新版本。
可选地, 当网络中有更新版本的 WLAN覆盖区域信息查询表, 网络返回 的查询响应中,携带更新版本号或其他标识,指示终端准备接受查询表更新。
步骤 S1606, 网络侧向终端发送 WLAN覆盖区域信息查询表更新部分。 在另外一个实施例中, 还提供了一种软件, 该软件用于执行上述实施例 及可选实施例中描述的技术方案。
在另外一个实施例中, 还提供了一种存储介质, 该存储介质中存储有上 述软件, 该存储介质包括但不限于光盘、 软盘、 硬盘、 可擦写存储器等。
显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 并 且在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤, 或者 将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作 成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软件 结合。
以上所述仅为本发明的可选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。
工业实用性
通过上述技术方案, 釆用获取移动终端所在的蜂窝基站的标识信息; 根 据该标识信息查询该移动终端是否处于 WLAN的覆盖区域中;在查询结果为 是的情况下, 启动该移动终端的 WLAN热点搜索功能, 并根据该 WLAN的 覆盖区域信息调整该 WLAN热点搜索功能的扫描频率,其中,该覆盖区域信 息包括位置信息和 /或无线环境信息的方式,解决了相关技术中移动终端如何 进行 WLAN自动发现以及使用 WLAN较耗电问题, 降低了移动终端的耗电

Claims

权 利 要 求 书
1.一种无线局域网 WLAN热点搜索的控制方法, 包括:
获取移动终端所在的蜂窝基站的标识信息;
根据所述标识信息查询所述移动终端是否处于 WLAN的覆盖区域中; 在查询结果为是的情况下, 启动所述移动终端的 WLAN热点搜索功能, 并根据所述 WLAN的覆盖区域信息调整所述 WLAN热点搜索功能的扫描频 率, 其中, 所述覆盖区域信息包括位置信息和 /或无线环境信息。
2.根据权利要求 1所述的控制方法, 其中, 根据所述标识信息查询所述 移动终端是否处于 WLAN的覆盖区域中的步骤包括:
获取蜂窝基站的标识信息与 WLAN的覆盖区域的对应关系表; 查询所述移动终端所在的蜂窝基站的标识信息在所述对应关系表中是否 存在对应的 WLAN的覆盖区域;
如果存在对应的 WLAN的覆盖区域, 确定所述移动终端处于 WLAN的 覆盖区域中。
3.根据权利要求 2所述的控制方法, 所述控制方法还包括:
在所述移动终端接入 WLAN之后, 判断是否需要更新所述对应关系表; 根据判断结果对所述对应关系表进行更新处理。
4.根据权利要求 3所述的控制方法, 其中, 判断是否需要更新所述对应 关系表的步骤包括:
向网络侧发送版本查询消息, 其中, 所述版本查询消息中包含所述对应 关系表的第一版本标识;
接收所述网络侧发来的响应消息, 如果所述响应消息中包含的第二版本 标识与第一版本标识不同, 确定需要更新所述对应关系表; 如果所述响应消 息中包含的第二版本标识与第一版本标识相同, 确定不需要更新所述对应关 系表。
5.根据权利要求 1至 4中任一项所述的控制方法, 其中, 在所述位置信 息为所述 WLAN与所述蜂窝基站的矢量距离的情况下, 根据所述 WLAN的 覆盖区域信息调整所述 WLAN热点搜索功能的扫描频率包括: 在所述 WLAN 与所述蜂窝基站的矢量距离大于或等于预设阔值的情况 下, 降低所述 WLAN热点搜索功能的扫描频率;
在所述 WLAN与所述蜂窝基站的矢量距离小于预设阔值的情况下,提高 所述 WLAN热点搜索功能的扫描频率。
6.根据权利要求 1至 4中任一项所述的控制方法, 其中, 在所述无线环 境信息为所述 WLAN的无线信号强度的情况下, 根据所述 WLAN的覆盖区 域信息调整所述 WLAN热点搜索功能的扫描频率的步骤包括:
在所述 WLAN的无线信号强度大于或等于预设阔值的情况下,提高所述 WLAN热点搜索功能的扫描频率;
在所述 WLAN的无线信号强度小于预设阔值的情况下,降低所述 WLAN 热点搜索功能的扫描频率。
7.—种无线局域网 WLAN热点搜索的控制装置, 包括获取模块、 查询模 块、 启动模块及调整模块, 其中:
所述获取模块设置成: 获取移动终端所在的蜂窝基站的标识信息; 所述查询模块设置成: 根据所述标识信息查询所述移动终端是否处于 WLAN的覆盖区域中;
所述启动模块设置成: 在所述查询模块的查询结果为是的情况下, 启动 所述移动终端的 WLAN热点搜索功能;
所述调整模块设置成:根据所述 WLAN的覆盖区域信息调整所述 WLAN 热点搜索功能的扫描频率, 其中, 所述覆盖区域信息包括位置信息和 /或无线 环境信息。
8.根据权利要求 7所述的控制装置,其中,所述查询模块包括获取单元、 查询单元和确定单元, 其中:
所述获取单元设置成:获取蜂窝基站的标识信息与 WLAN的覆盖区域的 对应关系表;
所述查询单元设置成: 查询所述移动终端所在的蜂窝基站的标识信息在 所述对应关系表中是否存在对应的 WLAN的覆盖区域;
所述确定单元设置成:如果存在对应的 WLAN的覆盖区域,确定所述移 动终端处于 WLAN的覆盖区域中。
9.根据权利要求 8所述的控制装置, 所述控制装置还包括判断模块和更 新模块, 其中:
所述判断模块设置成:在所述移动终端接入 WLAN之后,判断是否需要 更新所述对应关系表;
所述更新模块设置成: 根据所述判断模块的判断结果对所述对应关系表 进行更新处理。
10.根据权利要求 9所述的控制装置, 其中, 所述判断模块包括发送单元 和接收单元, 其中:
所述发送单元设置成: 向网络侧发送版本查询消息, 其中, 所述版本查 询消息中包含所述对应关系表的第一版本标识;
所述接收单元设置成: 接收所述网络侧发来的响应消息, 如果所述响应 消息中包含的第二版本标识与第一版本标识不同, 确定需要更新所述对应关 系表; 如果所述响应消息中包含的第二版本标识与第一版本标识相同, 确定 不需要更新所述对应关系表。
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