CN100426772C - Wireless terminal apparatus for automatically changing wlan standard and method thereof - Google Patents
Wireless terminal apparatus for automatically changing wlan standard and method thereof Download PDFInfo
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- CN100426772C CN100426772C CNB2005101039086A CN200510103908A CN100426772C CN 100426772 C CN100426772 C CN 100426772C CN B2005101039086 A CNB2005101039086 A CN B2005101039086A CN 200510103908 A CN200510103908 A CN 200510103908A CN 100426772 C CN100426772 C CN 100426772C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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Abstract
A wireless terminal apparatus having a Wireless Local Area Network (WLAN) standard automatic change function and method thereof are provided. The wireless terminal apparatus comprises a memory for storing information of a condition change, a wireless communication module for communicating with a predetermined correspondent node according to a first WLAN standard, a communication status detection unit for detecting a communication status of the wireless communication module and determining whether an event occurs satisfying the condition for change, and a central processing unit, changing the first WLAN standard to a second WLAN standard and establishing a communication link. An optimum WLAN standard can be established and a communication is performed according to the WLAN standard.
Description
Technical field
The present invention relates to a kind of wireless terminal device and method thereof of carrying out the wireless network communication function.More particularly, the present invention relates to a kind of wireless terminal device and method thereof, it is supported a plurality of wireless lan (wlan) standards (wlan standard is incorporated into this by reference), selects to carry out the wireless network communication function to the only standard of current communication environment with according to selected standard.
Background technology
Used more and more in a lot of fields by utilizing ripple or light rather than cable to set up the fast wireless network of network environment.Because wireless network does not need cable distribution work, so it can be convenient to the foundation of network.And (2.4GHz, 5GHz) enterprising line operate is so may arrive the two-forty transmission data of 54Mbps with 11Mbps because it is at the broadband wireless electric wave.The method that is used for setting up wireless network is included in only to be stuck in by WLAN and transmits employed special (adhoc) method of data between the laptop computer and use access point (AP) to be connected with the infrastructure method (infrastructuremethod) of spider lines.
Figure 1A shows the Radio Network System of the ad hoc approach that is used for communication.Shown in Figure 1A, directly carry out communication such as each radio node of PC 11, laptop computer 12 and multi-function peripheral 13 with another radio node, and not by extra central management equipment.
Figure 1B shows the Radio Network System of the infrastructure method that is used for communication.With reference to Figure 1B, wherein each node 21,22,23 such as PC and server also comprises access point (AP) 20 via wired infrastructure that is connected with another of lead.AP 20 is the equipment that the radio node such as laptop computer, PC, multi-function peripheral is connected to wired infrastructure.In addition, each radio node 30,40 carries out communication indirectly each other by AP.
According to various wlan standards, between each radio node of ad hoc approach, carry out communication, and between the AP of infrastructure method and each radio node, carry out communication.The main MMAC-PC standard that wlan standard (full content of wlan standard by with reference to be incorporated into this) is categorized as the IEEE802.11 standard of using in the U.S., the super LAN standard of using in Europe and uses in Japan.In these standards, very popular in the U.S. and Asia I EEE 802.11 standards, with this criteria classification be 802.11,802.11a, 802.11b and 802.11g.
Support the user of the terminal equipment of radio network functions predetermined communication profile (profile) to be set to carry out communication according to predetermined wlan standard.The communication profile comprises service groups sign (SSID), operator scheme, channel type and security information.Terminal equipment selects in the above-mentioned wlan standard one to carry out communication according to set profile.
If wireless terminal device is supported ad hoc approach and infrastructure method, user's select operating mode and optionally adopt two kinds of standards then.But though changed operator scheme, traditional wireless terminal device also keeps the current WLAN standard.In this case, if wireless terminal device is placed on various AP coexistences to support different wlan standards or to exist single AP to support then can produce frequency interferences between wlan standard in the environment of different wlan standards.Thus, produce noise and worsened communication condition.And, do not use the radio frequency resource effectively.
And, change in network environment owing to newly-installed communication profile, but traditional wireless terminal device also keeps the current WLAN standard, so it can not be operated smoothly.Even wireless terminal device design is supported different wlan standards, the user also must directly seek current communication standard and upgrade profile.
Summary of the invention
Developed the present invention in order to address the above problem.Therefore, one aspect of the present invention provides a kind of wireless terminal device and method thereof, its when communication mode changes according to ambient network condition changing WLAN (wireless local area network) (LAN) standard, thereby prevent to disturb with another wireless terminal device.
Another aspect of the present invention provides a kind of wireless terminal device and method thereof, and it can automatically be selected the only wireless lan (wlan) standard of current communication state, thereby allows the user to set up the communication environment of optimization.
Example embodiment according to the present invention realizes top aspect, and wireless terminal device is provided.This wireless terminal device comprises: wireless communication module, and it to be setting up the communication link with certain corresponding node as one of the special pattern of operator scheme and infrastructure mode, and carries out the communication with corresponding node; And CPU, it controls wireless communication module, if thereby the operator scheme of wireless communication mode has changed during wireless telecommunications, first wlan standard that to use before pattern changes is changed into second wlan standard, and set up communication link according to second wlan standard, wherein said second wlan standard is different with first wlan standard and described second wlan standard is used and the different frequency band of frequency band of described first wlan standard.
According to example embodiment of the present invention, CPU is the searching standard from a plurality of wlan standards of using the frequency band different with the frequency band of first wlan standard, and the result standard that finds is used as second wlan standard.
According to example embodiment of the present invention, wireless terminal device also comprises button input receiving element, and its input pattern selects signal to select in special pattern and the infrastructure mode.
According to example embodiment of the present invention, wireless terminal device also comprises: output unit, and its explicit user interfaces windows is by the communication profile information of this user interface windows input about a plurality of wlan standards; And memory, storage is by the communication profile information of user interface windows input.
According to example embodiment of the present invention, if mode select signal has been selected certain operator scheme, then CPU determines to be in employed wlan standard in the network in the communication context of wireless communication module, and will use as second wlan standard in the different standard of determined wlan standard.
According to example embodiment of the present invention, provide a kind of in predictive mode of operation with the method for certain corresponding node communication.The method comprising the steps of: determine whether operator scheme changes; If changed, then determine employed first wlan standard before operator scheme changes in wireless telecommunications manipulate pattern; Second wlan standard different with first wlan standard with use set up communication link according to second wlan standard, and described second wlan standard is used the frequency band different with the frequency band of described first wlan standard; And carry out communication, wherein said operator scheme comprises special pattern and infrastructure mode.
According to example embodiment, use step also to comprise searching standard from a plurality of wlan standards of using the frequency band different, and use the standard that finds as second wlan standard with the first wlan standard frequency band.
According to example embodiment, this method also comprises step: the explicit user interfaces windows is with the communication profile information of input about a plurality of wlan standards, and storage is by the communication profile of user interface windows input.
According to example embodiment, use step also to comprise the communication profile information of retrieval about second wlan standard; And set up communication link according to the 2nd WLAN based on the communication profile of being retrieved.
According to example embodiment, this method also comprises step: receive the mode select signal of selecting one of infrastructure mode and special pattern; But the wlan standard of using in the network of determining in the communication context of wireless terminal device, to exist; And the use standard different with determined wlan standard is as second wlan standard.
According to example embodiment of the present invention, a kind of wireless terminal device is provided, is used for, with predictive mode of operation and certain corresponding node communication at wireless telecommunication system, described wireless terminal device comprises: memory, store the information of communication profile of a plurality of wlan standards and the information that condition changes; Wireless communication module carries out communication according to first wlan standard and predetermined corresponding node; With the communication state detecting unit, detect the communication state and the incident that has determined whether to take place to satisfy change condition of wireless communication module.If the communication state detecting unit determines to have taken place such incident during wireless telecommunications, then wireless communication module is changed into first wlan standard second wlan standard and is carried out communication according to second wlan standard, and wherein said second wlan standard is different with first wlan standard and described second wlan standard is used and the different frequency band of frequency band of described first wlan standard.
According to example embodiment, described wireless terminal device also comprises the input unit that is used for incoming traffic profile information and change condition information.
According to example embodiment, described wireless terminal device also comprises CPU, and it seeks second wlan standard in a plurality of wlan standards, retrieve the communication profile of second wlan standard that is found and control wireless communication module according to second wlan standard based on the communication profile of being retrieved and carry out communication from memory.
According to example embodiment, if (LINK OFF) condition of closing is selected as change condition with communication link, then CPU satisfy communication LINK OFF (link is closed) but from a plurality of wlan standards, seek second wlan standard of communication during condition.
According to example embodiment, if select low transmission rate as change condition and this low transmission rate less than reference rate, then CPU is sought second wlan standard from a plurality of wlan standards of supporting the transmission rate bigger than reference rate.
According to example embodiment, if the select time change condition has changed as change condition and time, then CPU is according to the information about the wlan standard that is assigned to different time respectively, and first wlan standard is changed to second wlan standard into the current time appointment.
According to example embodiment, described wireless terminal device also comprises output equipment, and its explicit user interfaces windows is used to be provided with the information of communication profile and the information of change condition.
According to example embodiment of the present invention, provide the means of communication in a kind of wireless terminal device.The method comprising the steps of: according to the wireless telecommunications of first wlan standard execution with the corresponding node of being scheduled to; Detect wireless communication state and determined whether to take place to satisfy the incident of predetermined change condition; If such incident has taken place during wireless telecommunications, then first wlan standard is changed into the second predetermined wlan standard and carried out wireless telecommunications according to second wlan standard, wherein said second wlan standard is different with first wlan standard and described second wlan standard is used and the different frequency band of frequency band of described first wlan standard.
According to example embodiment, described change step comprises: retrieval is used for the communication profile of second wlan standard, and according to carrying out wireless telecommunications based on second wlan standard of the communication profile information of being retrieved.
According to example embodiment, described method also comprises step: receive and store communication profile information and the condition change information that is used for a plurality of wlan standards.
According to example embodiment, the information of communication profile comprises at least one in service groups sign (SSID), wlan standard information, operation mode information, authorization information and the enciphered message.
According to example embodiment, the reference that changes can be defined as link and close one of condition, low transmission rate condition and time change condition.
Description of drawings
By example embodiment with reference to the accompanying drawings to describe the present invention, top aspect of the present invention and other advantages will become obviously, wherein:
Figure 1A shows the traditional structure according to the wireless network environment of ad hoc approach;
Figure 1B shows the structure according to the wireless network environment of infrastructure method;
Fig. 2 shows the block diagram according to the wireless terminal device of illustrated embodiments of the invention;
Fig. 3 show determine according to illustrated embodiments of the invention the user interface windows of communication profile of wireless terminal device;
Fig. 4 shows the flow chart according to the wireless communication method of illustrated embodiments of the invention;
Fig. 5 shows the flow chart of the wireless communication method of an example embodiment according to the present invention;
Fig. 6 shows the block diagram of the wireless terminal device of an example embodiment according to the present invention;
Fig. 7 shows the example embodiment of the communication profile of the wireless lan (wlan) standard that is used to be scheduled to of an example embodiment according to the present invention;
Fig. 8 shows an example embodiment of user interface windows, and its wlan standard of determining the wireless terminal device of Fig. 6 changes function automatically; With
Fig. 9 show according to illustrated embodiments of the invention the flow chart of wireless communication method of wireless terminal device.
In the whole accompanying drawing, similarly Reference numeral will be interpreted as indication similar parts, assembly and structure.
Embodiment
Below, describe example embodiment of the present invention in detail with reference to accompanying drawing.
Fig. 2 shows the block diagram according to the wireless terminal device of illustrated embodiments of the invention.With reference to Fig. 2, comprise input unit 110, CPU 120, wireless communication module 130, memory 140 and output unit 150 according to the wireless terminal device of illustrated embodiments of the invention.
The wireless lan (wlan) standard that wireless communication module 130 bases are scheduled to is carried out communication with corresponding node.For this reason, wireless communication module 130 comprises the wireless network card (not shown).Wireless communication module 130 carries out communication according to user's selection with special pattern or infrastructure mode.In infrastructure mode, the communication link of wireless communication module 130 foundation and contiguous access point (AP) is to carry out communication.If a plurality of AP that support different wlan standards are provided, then at least two AP are fitted to each other and wireless communication module 130 carries out communication.
When input unit 110 select operating modes, wireless communication module 130 is in selected operator scheme, carry out communication according to different types of wlan standard.In wlan standard, use IEEE 802 11b, 802 11g and 802 11a usually.IEEE 802.11b has the maximum data rate of 11Mbps and operates on the 2.4GHz frequency band.IEEE 802.11g is the improvement of IEEE 802.11b, and has the maximum data rate of 54Mbps and operate on the 2.4GHz frequency band.IEEE 802.11a is the extended version of existing wlan standard, and has 54Mbps or bigger data rate and operate on the 5GHz frequency band.Because IEEE 802.11b and IEEE 802.11g have the same frequency band of 2.4GHz, so they are compatible each other.Therefore, if wireless communication module 130 according to IEEE 802.11b carry out communication but around environment carry out communication according to IEEE 802.11g, then between them, will disturb.
In order to prevent to disturb, the processing below carrying out.When receiving by input unit 110 when being used to change the mode select signal of operator scheme, CPU 120 is sought has the standard of the frequency band different with the frequency band of first wlan standard of using in adjacent ambient.If found second wlan standard, then retrieve the communication profile of second wlan standard from memory 140.Wireless communication module 130 is based on the communication profile of being retrieved, set up communication link with certain corresponding node according to second wlan standard.Corresponding node can comprise that perhaps it can be the access point in infrastructure mode such as the wireless terminal device of the laptop computer in special pattern, personal computer (PC), PDA(Personal Digital Assistant) and the network printer.
The user will import and be stored in the memory 140 in advance about the communication profile information of a plurality of wlan standards of being used by wireless communication module 130.The communication profile information comprises at least one in service groups sign (SSID), wlan standard information, operation mode information, authorization information and the enciphered message.Output unit 150 shows the user interface windows that is used for user's incoming traffic profile information.
Fig. 3 shows an example of the user interface windows 300 that is used to be provided with the communication profile.In Fig. 3, SSID comprises and is assigned to ID that present wireless terminal device and corresponding node are distinguished.Authorization information and enciphered message are used for keeping the fail safe with the communication of corresponding node.
Operation mode information is selected in infrastructure mode and the special pattern.In infrastructure mode, select to be suitable for the wlan standard of needed connection access point.And can select to be used for the wlan standard of special pattern.
In this case, by automatically select to be used for the wlan standard of current operator scheme with reference to the wlan standard in different operation modes.That is,, as shown in Figure 3, then, optimum wlan standard is set automatically by with reference to the wlan standard or the ambient network condition that are used for infrastructure if selected " automatic-as to be provided with " to be provided for the wlan standard of special pattern.In this case, choice menus " is removed infrastructure " and removes the wlan standard of infrastructure mode, and perhaps choice menus " is removed adjacent network " to remove the wlan standard of using in adjacent network.
For example, suppose to carry out communication according to the IEEE 802.11a in infrastructure mode.If operator scheme is changed into special pattern and choice menus " is removed infrastructure ", then seek wlan standard except that standard IEEE 802.11a in special pattern, to use.Preferably use the standard of different frequency bands.In the above example, standard IEEE 802.11g or 802.11b use the 2.4GHz frequency band different with the 5GHz of IEEE 802.11a.
If selected menu " to remove adjacent network ", but then consider the wlan standard used in the network environment that is arranged in communication context, and select to have the wlan standard of different frequency bands.In the above in the example, carry out communication with first access point according to the IEEE 802.11a standard in infrastructure mode.Then, if operator scheme is switched to special pattern, then select IEEE 802.11b or 802.11g standard.
Be different from the top situation that has a plurality of access points, if the terminal equipment around existing carries out communication with another in special pattern, the wlan standard of terminal equipment and select different wlan standards around then considering.
Simultaneously, switch to infrastructure mode, then wlan standard can be set automatically if will operate from special pattern.That is,, wlan standard is set automatically with reference to the wlan standard of using between the wireless terminal device around or by the wlan standard of another access point support if choice menus " automatically-be provided with " is used for the wlan standard of infrastructure mode.
Fig. 4 shows the flow chart according to the wireless communication method of illustrated embodiments of the invention.With reference to Fig. 4, at step S410, the user is by the communication profile information of user interface windows input about a plurality of wlan standards.Store the communication profile information of input into memory 140.
If determine operator scheme is switched, then determine whether to select to be provided with automatically " automatic-as to be provided with " function of wlan standard at step S430 at step S420.Then, if selected " automatically-be provided with " function, then determine the kind of employed first wlan standard before pattern changes and seek second wlan standard different with first wlan standard at step S440.Seek second wlan standard in a plurality of wlan standards that from communication profile information, comprise by the user interface windows input.Best, second wlan standard is used the frequency band different with the frequency band of first wlan standard.
At step S450, set up communication link with certain corresponding node according to second wlan standard that finds.
Simultaneously, if in step S420, occur in the operator scheme changing,, then in step S460, still use the current WLAN standard if perhaps in step S430, there is the variation of operator scheme still not select the wlan standard automatic setting control function.
Fig. 4 shows the situation that operator scheme is switched to other different patterns.But, when wireless terminal device is attempted initial communication, can select wlan standard with reference to the wlan standard that is used for different operation modes.
Fig. 5 shows the flow chart of the wireless communication method of an example embodiment according to the present invention.With reference to Fig. 5, at the communication profile information of step S510 setting about a plurality of wlan standards.If select predetermined operator scheme, then determine whether to have selected menu " automatic-as to be provided with " at step S530 at step S520.
If selected menu " automatically-be provided with ", but employed wlan standard in the ambient network that step S540 determines to exist in communication context then.Then, in the type different wlan standard of step S550 searching, set up communication link according to the wlan standard that finds at step S560 with the wlan standard of determining.
If do not have choice menus " automatic-as to be provided with ", then set up communication link according to the wlan standard that is set to give tacit consent at step S570.
The embodiment that explains in Fig. 5 can be applied to the situation that operator scheme changes.That is, if changed operator scheme, the wlan standard of network condition around then considering and the operator scheme that is identified for changing.
Fig. 6 shows the block diagram according to the wireless terminal device of example embodiment of the present invention.With reference to Fig. 6, comprise input unit 210, CPU 220, wireless communication module 230, communication state detecting unit 240, memory 250 and output unit 260 according to the wireless terminal device of illustrated embodiments of the invention.
In order to allow wireless communication module 230 select some standards from wlan standard, the user must be provided with predetermined communication profile.CPU 220 control output units 260 show the image that is used to be provided with the communication profile.
Fig. 7 shows the example that the communication profile that shows by output unit 260 is provided with image 400.With reference to Fig. 7, the communication profile comprises service groups sign (SSID), wlan standard information, operation mode information, authorization information and enciphered message.SSID is meant the ID that allows wireless network card and AP or another node to carry out communication.Wlan standard information is used to specify in the wireless communication module 230 supported wlan standards.The user selects wlan standard based on the feature of each standard.In addition, the user can select such as one in the operator scheme of special pattern or infrastructure mode, and determines authorization information and enciphered message for fail safe.
As shown in Figure 7, if the user determines the communication profile according to concrete wlan standard, then CPU 220 is stored in definite profile of correspondence in the memory 250.
Fig. 8 shows an example of the user interface windows that shows by output unit 260.With reference to Fig. 8, user interface windows 500 shows ON/OFF (ON/OFF) that wlan standard changes function automatically, change condition, according to the profile of corresponding standard.If the function (ON) of selecting wlan standard to change automatically then must be provided with change condition.In this case, change condition comprises at least one in LINK OFF (link is closed), low transmission rate and the time variation.
Communication state determining unit 240 detects current communication state and determines whether to take place to satisfy the incident of the condition that is provided with that changes.More particularly, whether determine whether to disconnect current link, transmission rate less than reference rate or not definite time change.
If communication state detecting unit 240 has determined to take place the incident of satisfied change condition, then CPU 220 is sought different supported wlan standards.If there is suitable wlan standard, then CPU 220 is retrieved the communication profile of the wlan standard that is used to find, and controls wireless communication module 230 to set up the link according to the wlan standard that finds according to the communication profile of being retrieved.
Below, with the operation that describes in detail according to the wireless terminal device of illustrated embodiments of the invention.
If select LINK OFF (link is closed) as change condition, then communication state detecting unit 240 determines whether current communication link is in off status.If if the AP of current link loses or because the change of cryptographic keys information causes current communication linkage to be disconnected, then determined to take place to satisfy the incident of change condition.And, if the node from correspondence does not at the fixed time send any packet, if perhaps do not receive the confirmation packet, then determine to have taken place to satisfy the incident of change condition (in other words, LINK OFF condition) in response to the packet that sends from wireless terminal device.If determine that LINK OFF has taken place, then communication state detecting unit 240 is notified CPU 220.
If low transmission rate is selected then to be set to compare with transmission rate the predetermined reference time as change condition.If reference rate is set to 12Mbps, then communication state detection part 240 determines that in current transmission rate the incident that satisfies change condition takes place during less than 12Mbps.Subsequently, CPU 220 is sought wlan standard from a plurality of wlan standards that can keep 12Mbps or higher rate.Have the 52Mbps or the 802.11g standard of high data rate more if found, then set up communication link according to the profile of 802.11g.
If select time changes condition as change condition, the user must divide suitable wlan standard each time of tasking in advance.For example, the assignment of 802.11b standard is used at 0 o'clock to 8 o'clock, the 802.11a standard is assigned be used at 8 o'clock to 17 o'clock, and the assignment of 802.11g standard is used at 17 o'clock to 0 o'clock.When current time showing 08:01, communication state detecting unit 240 has determined to take place to satisfy the incident of change condition.Therefore, CPU 220 is set up communication link according to the profile of being divided the 802.11a standard of tasking at 8 o'clock to 17 o'clock.
Fig. 9 shows the flow chart according to the wireless communication method of illustrated embodiments of the invention.With reference to Fig. 9,, then determined whether to take place to satisfy the incident of change condition at step S920 if selected the wlan standard function (ON) of variation automatically at step S910.Because the generation of the kind and the incident of change condition has been described, omit explanation in the above to them.
If determine to have taken place described incident, the user seeks second wlan standard that does not satisfy change condition at step S930.If have second wlan standard, then be used for the profile of second wlan standard and use it for and set up communication link from memory 250 retrieval at step S950 at step S940.Owing to provided detailed description with reference to Fig. 7 in the above, so omit them here about the communication profile.
If there is not second wlan standard, the WLAN before step S960 keeps then.
Above-mentioned wireless communication method can be applied to support the WLAN function, such as any equipment of laptop computer, PC, the network printer or network multi-function peripheral.According to illustrated embodiments of the invention, owing to can select suitable wlan standard and carry out communication for current communication environment, so can set up stable communication environment.
According to illustrated embodiments of the invention, when operator scheme changes, can prevent interference by employed current wlan standard before pattern is changed into various criterion with ambient network.If infrastructure mode is changed into special pattern, then carry out communication, thereby prevent to disturb and can effectively utilize the radio frequency resource according to the wlan standard of the different frequency band of the frequency band that uses the wlan standard of supporting with access point before.And according to above-mentioned example embodiment of the present invention, in the network that a plurality of wlan standard coexistences are arranged, if the incident of the change condition that sets in advance takes place to satisfy, then current wlan standard is changed into different wlan standards automatically.Owing to can select suitable wlan standard, so the state of can stably keeping in communication.And, because the user that whenever do not need who changes in wlan standard is provided with profile, so can make the user feel more convenient.Wireless terminal device according to illustrated embodiments of the invention can be laptop computer, PC, printer and the multi-function peripheral with radio network functions.
Above-mentioned example embodiment and advantage only are exemplary and should not be understood that limitation of the scope of the invention.Being illustrated as of the embodiment of the invention is illustrative, does not limit the scope of the claims.Manyly to one skilled in the art substitute, change and change all very obvious.
Claims (23)
1, a kind of wireless terminal device comprises:
Wireless communication module, it setting up one of at least the communication link with certain corresponding node as the special pattern of operator scheme and infrastructure mode, and carries out communication with corresponding node according to the first WLAN (wireless local area network) wlan standard; With
CPU, it controls wireless communication module;
Wherein, if the operator scheme of wireless communication mode has changed during wireless telecommunications, first wlan standard is changed into second wlan standard, and set up communication link according to second wlan standard, wherein said second wlan standard is different with first wlan standard and described second wlan standard is used and the different frequency band of frequency band of described first wlan standard.
2, wireless terminal device according to claim 1, wherein said CPU are sought second wlan standard from a plurality of wlan standards.
3, wireless terminal device according to claim 2 also comprises button input receiving element, and its input pattern selects signal to select at least one in special pattern and the infrastructure mode.
4, wireless terminal device according to claim 3 also comprises:
Output unit, its explicit user interfaces windows, user interface windows comprises the input about the communication profile information of a plurality of wlan standards; And
Memory, storage is by the communication profile information of user interface windows input.
5, wireless terminal device according to claim 3, wherein, if described mode select signal has been selected pattern, then but CPU determines to be in employed wlan standard in the network in the communication context of wireless communication module, and the use standard different with determined wlan standard is as second wlan standard.
6, a kind of in wireless terminal device with the method for the corresponding node communication of predictive mode of operation with one, this method comprises:
Determine whether operator scheme changes;
If changed, then determine the employed first WLAN (wireless local area network) wlan standard before operator scheme changes in wireless telecommunications manipulate pattern; With
Use second wlan standard different, set up communication link, and described second wlan standard is used the frequency band different with the frequency band of described first wlan standard according to second wlan standard with first wlan standard; With
Carry out communication,
Wherein said operator scheme comprises special pattern and infrastructure mode.
7, wireless communication method according to claim 6, wherein said use step comprises:
From a plurality of wlan standards, seek second wlan standard.
8, wireless communication method according to claim 7 also comprises:
The explicit user interfaces windows is with the communication profile information of input about a plurality of wlan standards; And
Storage is by the communication profile information of user interface windows input.
9, wireless communication method according to claim 8, wherein said use step also comprises:
Retrieval is about the communication profile information of second wlan standard; And
According to setting up communication link based on second wlan standard of the communication profile of being retrieved.
10, wireless communication method according to claim 6 also comprises:
Receive to select infrastructure mode and special pattern mode select signal one of at least;
But the wlan standard of using in the network of determining in the communication context of wireless terminal device, to exist; And
Use the standard different as second wlan standard with determined wlan standard.
11, a kind of wireless terminal device comprises:
Memory is stored the information of the communication profile that comprises a plurality of WLAN (wireless local area network) wlan standards and the information that condition changes;
Wireless communication module carries out communication according to first wlan standard and corresponding node; With
The communication state detecting unit, the communication state of detection wireless communication module and the incident that has determined whether to take place to satisfy change condition,
Wherein, if the communication state detecting unit determines to have taken place to satisfy the described incident of change condition during wireless telecommunications, then wireless communication module is changed into first wlan standard second wlan standard and is carried out communication according to second wlan standard, and wherein said second wlan standard is different with first wlan standard and described second wlan standard is used and the different frequency band of frequency band of described first wlan standard.
12, equipment according to claim 11 also comprises the input unit that is used for incoming traffic profile information and change condition information.
13, equipment according to claim 12, also comprise CPU, it seeks second wlan standard in a plurality of wlan standards, from memory retrieval second wlan standard the communication profile and control communication module according to second wlan standard based on the communication profile of being retrieved and carry out communication.
14, equipment according to claim 13, wherein, during select as change condition if communication link is closed LINK OFF condition, then CPU is satisfying communication LINK OFF---i.e. link is closed---condition, from a plurality of wlan standards, seek second wlan standard.
15, equipment according to claim 13, if wherein select low transmission rate as change condition and this low transmission rate less than reference rate, then CPU is sought second wlan standard from a plurality of wlan standards of supporting the transmission rate bigger than reference rate.
16, equipment according to claim 13, if wherein the select time change condition has changed as change condition and time, then CPU is according to the information about the wlan standard that is assigned to different time respectively, first wlan standard is changed to second wlan standard, and wherein second wlan standard is the current time appointment.
17, equipment according to claim 13 also comprises output unit, its explicit user interfaces windows, be used for being provided with the information of communication profile and change condition information one of at least.
18, equipment according to claim 17, the information of wherein said communication profile comprise at least one in service groups sign SSID, wlan standard information, operation mode information, authorization information and the enciphered message.
19, a kind of wireless communication method comprises:
According to the wireless telecommunications of first WLAN (wireless local area network) wlan standard execution with corresponding node;
Detect wireless communication state and determine whether to take place to satisfy the incident of predetermined change condition; With
If described incident has taken place, then first wlan standard is changed into second wlan standard during wireless telecommunications; And
Carry out wireless telecommunications according to second wlan standard,
Wherein said second wlan standard is different with first wlan standard and described second wlan standard is used and the different frequency band of frequency band of described first wlan standard.
20, method according to claim 19, wherein said change step comprises:
Retrieval is used for the communication profile of second wlan standard from a plurality of wlan standards.
21, method according to claim 20 also comprises receiving and storage is used for the communication profile information of a plurality of wlan standards and about the information of this incident.
22, method according to claim 21, the information of wherein said communication profile comprise at least one in service groups sign SSID, wlan standard information, operation mode information, authorization information and the enciphered message.
23, method according to claim 21, wherein said incident comprise that link is closed, in low transmission rate and the time change condition at least one.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040073742A KR100662607B1 (en) | 2004-09-15 | 2004-09-15 | Wireless terminal device for setting WLAN standard automatically and method thereof |
| KR73742/04 | 2004-09-15 | ||
| KR76270/04 | 2004-09-23 | ||
| KR1020040076270A KR100661181B1 (en) | 2004-09-23 | 2004-09-23 | Wireless terminal device for changing WLAN standard automatically and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1750496A CN1750496A (en) | 2006-03-22 |
| CN100426772C true CN100426772C (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101039086A Expired - Fee Related CN100426772C (en) | 2004-09-15 | 2005-09-15 | Wireless terminal apparatus for automatically changing wlan standard and method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100662607B1 (en) |
| CN (1) | CN100426772C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100661181B1 (en) * | 2004-09-23 | 2006-12-26 | 삼성전자주식회사 | Wireless terminal device for changing WLAN standard automatically and method thereof |
| KR101283063B1 (en) * | 2006-05-11 | 2013-07-05 | 엘지이노텍 주식회사 | Network system and formation method of network |
| KR101625930B1 (en) * | 2009-10-30 | 2016-06-01 | 삼성전자 주식회사 | Mobile terminal and communicating methdo of the same |
| KR102025363B1 (en) * | 2013-07-08 | 2019-09-25 | 한화테크윈 주식회사 | Portable Terminal |
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| US6134587A (en) * | 1996-12-27 | 2000-10-17 | Nec Corporation | Method of setting up ad hoc local area network, method of communicating using said network, and terminal for use with said network |
| CN1318952A (en) * | 2000-01-11 | 2001-10-24 | 艾利森电话股份有限公司 | System and method operated by special radio call center |
| CN1375772A (en) * | 2001-03-13 | 2002-10-23 | 微软公司 | System and method for realizing zero-allocation wireless computing, and computering apparatus for leading in zero-allocation wireless computing |
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2004
- 2004-09-15 KR KR1020040073742A patent/KR100662607B1/en not_active IP Right Cessation
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2005
- 2005-09-15 CN CNB2005101039086A patent/CN100426772C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6134587A (en) * | 1996-12-27 | 2000-10-17 | Nec Corporation | Method of setting up ad hoc local area network, method of communicating using said network, and terminal for use with said network |
| CN1318952A (en) * | 2000-01-11 | 2001-10-24 | 艾利森电话股份有限公司 | System and method operated by special radio call center |
| CN1375772A (en) * | 2001-03-13 | 2002-10-23 | 微软公司 | System and method for realizing zero-allocation wireless computing, and computering apparatus for leading in zero-allocation wireless computing |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060024889A (en) | 2006-03-20 |
| CN1750496A (en) | 2006-03-22 |
| KR100662607B1 (en) | 2007-01-02 |
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