CN102932949A - Data communication device and data communication method - Google Patents
Data communication device and data communication method Download PDFInfo
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- CN102932949A CN102932949A CN2012104454502A CN201210445450A CN102932949A CN 102932949 A CN102932949 A CN 102932949A CN 2012104454502 A CN2012104454502 A CN 2012104454502A CN 201210445450 A CN201210445450 A CN 201210445450A CN 102932949 A CN102932949 A CN 102932949A
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Abstract
The invention provides a data communication method of a data communication device. The data communication device comprises a data processing module and a data interaction module. The data processing module generates first information, the first information at least comprises a type identification information bit, and the value of the type identification information bit indicates type of the data communication device, and the type of the data communication device is at least used for being a basis for an access point to set an information channel access parameter of the data communication device. The data interaction module sends the first information and receives second information, and the access point acquired by the data processing module from the second information is the information channel access parameter set by the data communication device. By means of the data communication device and the data communication method, single threaded apartment (STA) is guaranteed to send the type to an application process (AP), and the AP sets an enhanced distributed channel access (EDCA) parameter for the STA according to the type provided by the STA.
Description
Technical field
The present invention relates to communication technical field, in particular to data communication equipment and data communications method.
Background technology
In IEEE(IEEE-USA) in the 802.11ah project team, to terminal access network how, following demand has been proposed:
For a BSS(basic service set, Basic Service Set) network, STA(terminal) can be divided into the Sensor(transducer) type, Offloading(unloading) type and mixed type (be STA both can be used as the Sensor type also can be used as the Offloading type).
STA for the Sensor type, require it that highest priority access network is arranged, but how STA notifies AP(access point, access point) its type, and how AP comprises the EDCA(Enhanced distributed Channel Access of priority based on the type setting of STA, the access of enhancement mode distribution channel) parameter or the channel access HCCA(Hybrid Coordination Function(HCF of Hybrid Coordination Function control) Controlled Channel Access) parameter all is the problem that waits to solve.
Therefore, need a kind of new communication plan that is used between STA and the AP, guarantee that STA can be with its type notification to AP, realize that the type that AP provides according to STA comes for STA EDCA or HCCA parameter to be set.
Summary of the invention
Technical problem to be solved by this invention is, a kind of new communication plan that is used between STA and the AP is provided, and guarantees that STA can be with its type notification to AP, realizes that the type that AP provides according to STA comes for STA EDCA or HCCA parameter to be set.
In view of this, the invention provides a kind of data communication equipment, comprise: data processing module, generate the first message, described the first message is containing type identification information position at least, the type of the described data communication equipment of value representation of described type identification information position, the type of described data communication equipment are used for arranging as foundation for access point the channel access parameter of described data communication equipment at least; The data interaction module sends described the first message, and receives the second message, and described data processing module obtains described access point from described the second message be the channel access parameter that described data communication equipment arranges.In this technical scheme, data communication equipment can be STA, such as mobile phone or sensor, data processing module can be the chip module that data are processed in the communicator, the data interaction module then is equivalent to signal receiving/transmission device and antenna etc., STA can be with self type notification to AP, AP can arrange one or more corresponding channel access parameters for it according to the type of STA, the priority of access network for example, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, preferably, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication, series of fortified passes connection, can both realize the mutual of the type of STA and channel access parameter.
In technique scheme, preferably, the value of described type information flag represents when being the first value that described data communication equipment is sensor type, the value of described type information flag represents when being the second value that described data communication equipment is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described data communication equipment is mixed type, and described mixed type represents that described data communication equipment not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into the Sensor type, Offloading type and mixed type, AP can comprise according to the type of STA the multiple network access parameter of access network priority for its configuration, the different numerical value of use pattern message identification position, can distinguish clearly this several types, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, preferably, described data interaction module also receives the broadcast of described access point, described data processing module obtains the type of the terminal of described access point support from described broadcast, and during the type matching of the type of the terminal of supporting at described access point and described data communication equipment, need to determine described the first message of generation.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported, for example, if STA is the terminal of Sensor type, but it receives the broadcast of AP, it only supports the terminal of Offloading type to parse AP from broadcast, STA does not send the first message to set up related to AP so, namely only have after terminal type that type and the AP of STA support coupling, STA just can send comprise own type the first message to AP.
In technique scheme, preferably, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, preferably, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or when STA is the Sensor type, the elementID(component identification) value is set to 175, when STA was the Offloading type, the value of elementID was set to 176.
In technique scheme, preferably, described data processing module configures the channel access parameter of described data communication equipment also according to the channel access parameter that obtains.In this technical scheme, after STA parses channel access parameter, can be self configurating channel access parameter, when this parameter comprises the priority of access, STA by the priority that sets to carry out network insertion.
In technique scheme, preferably, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, being arranged by AP, this parameter comprises the priority of STA access network at least.
The present invention also provides a kind of data communications method, comprise: generate the first message, described the first message is containing type identification information position at least, the type of the value representation terminal of described type identification information position, the type of described terminal are used for arranging as foundation for access point the channel access parameter of described terminal at least; Send described the first message, and receive the second message; Obtaining described access point from described the second message is the channel access parameter that described terminal arranges.In this technical scheme, STA can be with self type notification to AP, and AP can arrange one or more corresponding channel access parameters, for example priority of access network for it according to the type of STA, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, preferably, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication request, series of fortified passes connection, can both realize the mutual of the type of STA and channel access parameter.
In technique scheme, preferably, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into the Sensor type, Offloading type and mixed type, AP can comprise according to the type of STA the multiple network access parameter of access network priority for its configuration, the different numerical value of use pattern message identification position, can distinguish clearly this several types, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, preferably, before described generation the first message, also comprise: the broadcast that receives described access point; From described broadcast, obtain the type of the terminal that described access point supports, and during the type matching of the type of the terminal of supporting at described access point and described terminal, need to determine described the first message of generation.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported.
In technique scheme, preferably, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, preferably, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or when STA is the Sensor type, the elementID(component identification) value is set to 175, when STA was the Offloading type, the value of elementID was set to 176.
In technique scheme, preferably, also comprise: according to the channel access parameter that obtains, configure the channel access parameter of described terminal.In this technical scheme, after STA parses channel access parameter, can be self configurating channel access parameter, when this parameter comprises the priority of access, STA by the priority that sets to carry out network insertion.
In technique scheme, preferably, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, being arranged by AP, this parameter comprises the priority of STA access network at least.
The present invention also provides a kind of data communication equipment, comprising: the data interaction module, receive the first message, and described the first message is containing type identification information position at least; Data processing module, from described the first message, obtain the value of described type identification information position, the type of the value representation terminal of described type identification information position, and generate the second message, the type that described the second message comprises according to described terminal is the channel access parameter that described terminal arranges, and described data interaction module sends described the second message.In this technical scheme, data communication equipment can be AP, data processing module can be the chip module that data are processed in the communicator, the data interaction module then is equivalent to signal receiving/transmission device and antenna etc., AP can be known the type of STA, and can for it one or more corresponding channel access parameters, for example priority of access network be set according to the type of STA, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, preferably, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication, series of fortified passes connection, can both realize the mutual of the type of STA and channel access parameter.
In technique scheme, preferably, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into Sensor type, Offloading type and mixed type, the different numerical value of AP use pattern message identification position, can distinguish clearly this several types, think the multiple network access parameter that comprises access network priority of STA configuration, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, preferably, before receiving described the first message, described data processing module also generates broadcast, described broadcast comprises the type of the terminal of described data communication equipment support, and described data interaction module sends described broadcast.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported.
In technique scheme, preferably, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, preferably, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or when STA is the Sensor type, the elementID(component identification) value is set to 175, when STA was the Offloading type, the value of elementID was set to 176.
In technique scheme, preferably, when the type of the terminal that described data processing module is supported at described data communication equipment and the type matching of described terminal, for described terminal arranges channel access parameter, and generate described the second message.In this technical scheme, after AP learns the type of a plurality of STA, for the STA that oneself supports, then be its configurating channel access parameter, can control the priority of its access network.
In technique scheme, preferably, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, arranged by AP, this parameter can comprise the priority of STA access network at least.
The present invention also provides a kind of data communications method, comprising: receive the first message, described the first message is containing type identification information position at least; From described the first message, obtain the value of described type identification information position, the type of the value representation terminal of described type identification information position, and generating the second message, the type that described the second message comprises according to described terminal is the channel access parameter that described terminal arranges; Send described the second message.In this technical scheme, AP can be known the type of STA, and can for it one or more corresponding channel access parameters, for example priority of access network be set according to the type of STA, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, preferably, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication, series of fortified passes connection, can both realize the mutual of the type of STA and channel access parameter.
In technique scheme, preferably, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into Sensor type, Offloading type and mixed type, the different numerical value of AP use pattern message identification position, can distinguish clearly this several types, think the multiple network access parameter that comprises access network priority of STA configuration, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, preferably, before described reception the first message, also comprise: generate broadcast, described broadcast comprises the type of the terminal of access point support; Send described broadcast.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported.
In technique scheme, preferably, described type identification information position comprises the frame head part of media access control frame of described the first message and/or the one or more positions in the frame part.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, preferably, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or at the elementID(component identification) value be 175, AP confirms that STA is the Sensor type, value at elementID is 176 o'clock, confirms that STA is the Offloading type.
In technique scheme, preferably, before described generation the second message, also comprise: when the type of the terminal of supporting at access point and the type matching of described terminal, for described terminal arranges channel access parameter, and generate described the second message.In this technical scheme, after AP learns the type of a plurality of STA, for the STA that oneself supports, then be its configurating channel access parameter, can control the priority of its access network.
In technique scheme, preferably, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, arranged by AP, this parameter can comprise the priority of STA access network at least.
By above technical scheme, realized data communication equipment and data communications method, guarantee that STA can be with its type notification to AP, realize that simultaneously the type that AP provides according to STA comes for STA the EDCA parameter to be set.
Description of drawings
Fig. 1 is the block diagram of data communication equipment according to an embodiment of the invention;
Fig. 2 is the flow chart of data communications method according to an embodiment of the invention;
Fig. 3 is the block diagram of data communication equipment according to an embodiment of the invention;
Fig. 4 is the flow chart of data communications method according to an embodiment of the invention;
Fig. 5 is the schematic flow sheet of data communications method according to an embodiment of the invention;
Fig. 6 is the schematic flow sheet of data communications method according to an embodiment of the invention.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments the present invention is further described in detail.Need to prove, in the situation that do not conflict, the application's embodiment and the feature among the embodiment can make up mutually.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subjected to the restriction of following public specific embodiment.
Fig. 1 is the block diagram of data communication equipment according to an embodiment of the invention.
As shown in Figure 1, the invention provides a kind of data communication equipment 100, comprise: data processing module 102, generate the first message, described the first message is containing type identification information position at least, the type of the described data communication equipment 100 of value representation of described type identification information position, the type of described data communication equipment 100 are used for arranging as foundation for access point the channel access parameter of described data communication equipment 100 at least; Data interaction module 104 sends described the first message, and receives the second message, and described data processing module 102 obtains described access point from described the second message be the channel access parameter that described data communication equipment 100 arranges.In this technical scheme, data communication equipment 100 can be STA, such as mobile phone or sensor, data processing module 102 can be the chip module that data are processed in the communicator 100, data interaction module 104 then is equivalent to signal receiving/transmission device and antenna etc., STA can be with self type notification to AP, AP can arrange one or more corresponding channel access parameters for it according to the type of STA, the priority of access network for example, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication, series of fortified passes connection, can both realize the mutual of the type of STA and channel access parameter.
In technique scheme, the value of described type information flag represents when being the first value that described data communication equipment 100 is sensor type, the value of described type information flag represents when being the second value that described data communication equipment 100 is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described data communication equipment 100 is mixed type, and described mixed type represents that described data communication equipment 100 not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into the Sensor type, Offloading type and mixed type, AP can comprise according to the type of STA the multiple network access parameter of access network priority for its configuration, the different numerical value of use pattern message identification position, can distinguish clearly this several types, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, described data interaction module 104 also receives the broadcast of described access point, described data processing module 102 obtains the type of the terminal of described access point support from described broadcast, and during the type matching of the type of the terminal of supporting at described access point and described data communication equipment 100, need to determine described the first message of generation.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported.
In technique scheme, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or when STA is the Sensor type, the elementID(component identification) value is set to 175, when STA was the Offloading type, the value of elementID was set to 176.
In technique scheme, described data processing module 102 configures the channel access parameter of described data communication equipment 100 also according to the channel access parameter that obtains.In this technical scheme, after STA parses channel access parameter, can be self configurating channel access parameter, when this parameter comprises the priority of access, STA by the priority that sets to carry out network insertion.
In technique scheme, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, being arranged by AP, this parameter comprises the priority of STA access network at least.
Fig. 2 is the flow chart of data communications method according to an embodiment of the invention.
As shown in Figure 2, the present invention also provides a kind of data communications method, comprise: step 202, generate the first message, described the first message is containing type identification information position at least, the type of the value representation terminal of described type identification information position, the type of described terminal are used for arranging as foundation for access point the channel access parameter of described terminal at least; Step 204 sends described the first message, and receives the second message; Step 206, obtaining described access point from described the second message is the channel access parameter that described terminal arranges.In this technical scheme, STA can be with self type notification to AP, and AP can arrange one or more corresponding channel access parameters, for example priority of access network for it according to the type of STA, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication request, series of fortified passes connection, can both realize the mutual of the type of STA and channel access parameter.
In technique scheme, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into the Sensor type, Offloading type and mixed type, AP can comprise according to the type of STA the multiple network access parameter of access network priority for its configuration, the different numerical value of use pattern message identification position, can distinguish clearly this several types, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, before described step 202, also comprise: the broadcast that receives described access point; From described broadcast, obtain the type of the terminal that described access point supports, and during the type matching of the type of the terminal of supporting at described access point and described terminal, need to determine described the first message of generation.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported.
In technique scheme, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or when STA is the Sensor type, the elementID(component identification) value is set to 175, when STA was the Offloading type, the value of elementID was set to 176.
In technique scheme, also comprise: according to the channel access parameter that obtains, configure the channel access parameter of described terminal.In this technical scheme, after STA parses channel access parameter, can be self configurating channel access parameter, when this parameter comprises the priority of access, STA by the priority that sets to carry out network insertion.
In technique scheme, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, being arranged by AP, this parameter comprises the priority of STA access network at least.
Fig. 3 is the block diagram of data communication equipment according to an embodiment of the invention.
As shown in Figure 3, the present invention also provides a kind of data communication equipment 300, comprising: data interaction module 302, receive the first message, and described the first message is containing type identification information position at least; Data processing module 304, from described the first message, obtain the value of described type identification information position, the type of the value representation terminal of described type identification information position, and generate the second message, the type that described the second message comprises according to described terminal is the channel access parameter that described terminal arranges, and described data interaction module 302 sends described the second message.In this technical scheme, data communication equipment 300 can be AP, data processing module 304 can be the chip module that data are processed in the communicator 300, data interaction module 302 then is equivalent to signal receiving/transmission device and antenna etc., AP can be known the type of STA, and can for it one or more corresponding channel access parameters, for example priority of access network be set according to the type of STA, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication, series of fortified passes connection, that can both realize the type of STA and channel access parameter comprises the multiple mutual of access network priority.
In technique scheme, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into Sensor type, Offloading type and mixed type, the different numerical value of AP use pattern message identification position, can distinguish clearly this several types, think the network access parameters of STA configuration, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, before receiving described the first message, described data processing module 304 also generates broadcast, and described broadcast comprises the type of the terminal of described data communication equipment 300 supports, and described data interaction module 302 sends described broadcast.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported.
In technique scheme, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or when STA is the Sensor type, the elementID(component identification) value is set to 175, when STA was the Offloading type, the value of elementID was set to 176.
In technique scheme, when the type of the terminal that described data processing module 304 is supported at described data communication equipment 300 and the type matching of described terminal, for described terminal arranges channel access parameter, and generate described the second message.In this technical scheme, after AP learns the type of a plurality of STA, for the STA that oneself supports, then be its configurating channel access parameter, can control the priority of its access network.
In technique scheme, preferably, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, arranged by AP, this parameter can comprise the priority of STA access network at least.
Fig. 4 is the flow chart of data communications method according to an embodiment of the invention.
As shown in Figure 4, the present invention also provides a kind of data communications method, comprising: step 402, receive the first message, and described the first message is containing type identification information position at least; Step 404, from described the first message, obtain the value of described type identification information position, the type of the value representation terminal of described type identification information position, and generate the second message, the type that described the second message comprises according to described terminal is the channel access parameter that described terminal arranges; Step 406 sends described the second message.In this technical scheme, AP can be known the type of STA, and can for it one or more corresponding channel access parameters, for example priority of access network be set according to the type of STA, so that the process of STA access network is controlled, guarantee in an orderly manner access network of STA.
In technique scheme, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.In this technical scheme, guarantee to survey with AP at STA, in the process of related, open system authentication, series of fortified passes connection, can both realize the mutual of the type of STA and channel access parameter.
In technique scheme, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is unloading Offloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as unloading Offloading type.In this technical scheme, the type of STA---divide into Sensor type, Offloading type and mixed type, the different numerical value of AP use pattern message identification position, can distinguish clearly this several types, think the multiple network access parameter that comprises access network priority of STA configuration, be the STA of Sensor type with " 001 " expression STA for example, STA is the STA of Offloading type with " 010 " expression, STA is the STA of mixed type with " 100 " expression, certainly also can identify with the value of other bit length the type of STA.
In technique scheme, before described step 402, also comprise: generate broadcast, described broadcast comprises the type of the terminal of access point support; Send described broadcast.In this technical scheme, because the STA type that AP supports may be more single, the STA that can not connect AP notifies its type then only can cause the STA kwh loss and increases communication pressure in the network to AP, therefore AP can broadcast the STA type of its support first, after STA listens to broadcast, judge whether and self type need to be reinformed to AP in conjunction with self type, AP can identify in beacon frame or other broadcast frame and come from the STA type that body is supported.
In technique scheme, described type identification information position comprises the frame head part of media access control frame of described the first message and/or the one or more positions in the frame part.In this technical scheme, type identification information can be recorded in the frame head part, for example, if the first message is probe request frame, the type identification of STA is for just being a frame head position or a plurality of position partly of the mac frame of probe request so, being convenient to AP comparatively fast parses, also can be recorded in the frame part, for example, if the first message is probe request frame, the STA type identification is for also being the one or more positions in the probe request frame order order territory partly, and the operational position of frame part is more certainly.
In technique scheme, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.In this technical scheme, for example, when STA is the Sensor type, the type(type) and subtype(subtype) value be set to " 000001 ", when STA is the Offloading type, the value of type and subtype is set to " 000101 ", can certainly identify the type of STA with in the frame control domain other, or at the elementID(component identification) value be 175, AP confirms that STA is the Sensor type, value at elementID is 176 o'clock, confirms that STA is the Offloading type.
In technique scheme, before described generation the second message, also comprise: when the type of the terminal of supporting at access point and the type matching of described terminal, for described terminal arranges channel access parameter, and generate described the second message.In this technical scheme, after AP learns the type of a plurality of STA, for the STA that oneself supports, then be its configurating channel access parameter, can control the priority of its access network.
In technique scheme, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.In this technical scheme, channel access parameter can be the access of EDCA(enhancement mode distribution channel) parameter, also can be the channel access of HCCA(Hybrid Coordination Function control) parameter, arranged by AP, this parameter can comprise the priority of STA access network at least.
Below take the BSS network as example, describe technical scheme of the present invention in detail.
The mode of STA access BSS network has two kinds: active scan and drive sweep, two following embodiment will propose solution to STA with its type notification AP for these two kinds of access waies.
1, drive sweep:
A, use the MAC(media access control) type and subtype territory in the frame head identify, shown in the table specific as follows:
Wherein, b
7b
6b
5b
4b
3b
2STA is the association request of Sensor type for " 000001 " expression, b
7b
6b
5b
4b
3b
2STA is the association request of Offloading type for " 000101 " expression.
B, use the IE(indicator element) form, shown in the table specific as follows:
Wherein, Element ID represented that STA was the association request of Sensor type at 175 o'clock, and Element ID represented that STA was the association request of Offloading type at 176 o'clock.
2, active scan:
A, identify with the Type in the mac frame head and subtype territory:
Wherein, b
7b
6b
5b
4b
3b
2STA is the probe request of Sensor type for " 001001 " expression, b
7b
6b
5b
4b
3b
2STA is the probe request of Offloading type for " 001101 " expression.
B, use the IE(indicator element) form, shown in the table specific as follows:
Wherein, Element ID represented that STA was the probe request of Sensor type at 177 o'clock, and Element ID represented that STA was the probe request of Offloading type at 178 o'clock.
In sum, by technical scheme of the present invention, can realize data communication equipment and data communications method, utilize this programme to be convenient to the EDCA parameter that AP can arrange STA, thereby so that STA enters network in an orderly manner, be beneficial to the STA power saving in the whole network.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (32)
1. a data communication equipment is characterized in that, comprising:
Data processing module, generate the first message, described the first message is containing type identification information position at least, the type of the described data communication equipment of value representation of described type identification information position, the type of described data communication equipment are used for arranging as foundation for access point the channel access parameter of described data communication equipment at least;
The data interaction module sends described the first message, and receives the second message, and described data processing module obtains described access point from described the second message be the channel access parameter that described data communication equipment arranges.
2. data communication equipment according to claim 1, it is characterized in that, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.
3. data communication equipment according to claim 1, it is characterized in that, the value of described type information flag represents when being the first value that described data communication equipment is sensor type, the value of described type information flag represents when being the second value that described data communication equipment is the unloading type, the value of described type information flag represents when being the 3rd value that described data communication equipment is mixed type, and described mixed type represents that described data communication equipment not only can be used as sensor type but also can be used as the unloading type.
4. data communication equipment according to claim 1, it is characterized in that, described data interaction module also receives the broadcast of described access point, described data processing module obtains the type of the terminal of described access point support from described broadcast, and during the type matching of the type of the terminal of supporting at described access point and described data communication equipment, need to determine described the first message of generation.
5. data communication equipment according to claim 1 is characterized in that, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.
6. data communication equipment according to claim 4, it is characterized in that, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.
7. each described data communication equipment in 6 according to claim 1 is characterized in that, described data processing module configures the channel access parameter of described data communication equipment also according to the channel access parameter that obtains.
8. each described data communication equipment in 6 according to claim 1 is characterized in that, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.
9. a data communications method is characterized in that, comprising:
Generate the first message, described the first message is containing type identification information position at least, and the type of the value representation terminal of described type identification information position, the type of described terminal are used for arranging as foundation for access point the channel access parameter of described terminal at least;
Send described the first message, and receive the second message;
Obtaining described access point from described the second message is the channel access parameter that described terminal arranges.
10. data communications method according to claim 9, it is characterized in that, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.
11. data communications method according to claim 9, it is characterized in that, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is the unloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as the unloading type.
12. data communications method according to claim 9 is characterized in that, before described generation the first message, also comprises:
Receive the broadcast of described access point;
From described broadcast, obtain the type of the terminal that described access point supports, and during the type matching of the type of the terminal of supporting at described access point and described terminal, need to determine described the first message of generation.
13. data communications method according to claim 9 is characterized in that, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.
14. data communications method according to claim 13, it is characterized in that, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.
15. each described data communications method in 14 is characterized in that according to claim 9, also comprises:
According to the channel access parameter that obtains, configure the channel access parameter of described terminal.
16. each described data communications method in 14 is characterized in that according to claim 9, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.
17. a data communication equipment is characterized in that, comprising:
The data interaction module receives the first message, and described the first message is containing type identification information position at least;
Data processing module, from described the first message, obtain the value of described type identification information position, the type of the value representation terminal of described type identification information position, and generate the second message, the type that described the second message comprises according to described terminal is the channel access parameter that described terminal arranges, and described data interaction module sends described the second message.
18. data communication equipment according to claim 17, it is characterized in that, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.
19. data communication equipment according to claim 17, it is characterized in that, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is the unloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as the unloading type.
20. data communication equipment according to claim 17, it is characterized in that, before receiving described the first message, described data processing module also generates broadcast, described broadcast comprises the type of the terminal of described data communication equipment support, and described data interaction module sends described broadcast.
21. data communication equipment according to claim 17 is characterized in that, described type identification information position comprises frame head part and/or frame one or more positions partly of the media access control frame of described the first message.
22. data communication equipment according to claim 21, it is characterized in that, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.
23. each described data communication equipment in 22 according to claim 17, it is characterized in that, when the type of the terminal that described data processing module is supported at described data communication equipment and the type matching of described terminal, for described terminal arranges channel access parameter, and generate described the second message.
24. each described data communication equipment in 22 is characterized in that according to claim 17, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.
25. a data communications method is characterized in that, comprising:
Receive the first message, described the first message is containing type identification information position at least;
From described the first message, obtain the value of described type identification information position, the type of the value representation terminal of described type identification information position, and generating the second message, the type that described the second message comprises according to described terminal is the channel access parameter that described terminal arranges;
Send described the second message.
26. data communications method according to claim 25, it is characterized in that, described the first message is probe request, association request frame, open system authentication claim frame or reassociation requests frame, and described the second message is probing response frame, association response frame, beacon frame, open system authentication response frame or re-association response frame.
27. data communications method according to claim 25, it is characterized in that, the value of described type information flag represents when being the first value that described terminal is sensor type, the value of described type information flag represents when being the second value that described terminal is the unloading type, the value of described type information flag represents when being the 3rd value that described terminal is mixed type, and described mixed type represents that described terminal not only can be used as sensor type but also can be used as the unloading type.
28. data communications method according to claim 25 is characterized in that, before described reception the first message, also comprises:
Generate broadcast, described broadcast comprises the type of the terminal of access point support;
Send described broadcast.
29. data communications method according to claim 25 is characterized in that, described type identification information position comprises the frame head part of media access control frame of described the first message and/or the one or more positions in the frame part.
30. data communications method according to claim 29, it is characterized in that, described type information flag comprises one or more positions of type subdomain and subtype subdomain in the frame control domain of frame head part of media access control frame of described the first message, and/or channel access parameter is concentrated one or more positions in component identification territory.
31. each described data communications method in 30 is characterized in that according to claim 25, before described generation the second message, also comprises:
When the type of the terminal of supporting at access point and the type matching of described terminal, for described terminal arranges channel access parameter, and generate described the second message.
32. each described data communications method in 30 is characterized in that according to claim 25, described channel access parameter comprises the channel access parameter of enhancement mode distribution channel access parameter or Hybrid Coordination Function control.
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