CN103516461A - Wireless frame processing method and system - Google Patents
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Abstract
The invention discloses a wireless frame processing method and system. The method comprises the following steps: a wireless frame is sent by a sender to a receiver, wherein the sender is a site at which basic services are centralized and the receiver is an access point at which basic services are centralized or the sender is an access point at which basic services are centralized and the receiver is a site at which basic services are centralized, a first address information subdomain and a second address information subdomain are carried in a physical frame header signaling domain of the wireless frame, the first address information subdomain is used to identify the access point, and the second address information subdomain is used to identify the site; and the receiver is used to determine that the wireless frame is a wireless frame sent to itself according to the first address information subdomain and/or the second address information subdomain. According to the invention, the waste of address information subdomains can be avoided.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of radio frames processing method and system.
Background technology
Current, in field of wireless, WLAN (wireless local area network) (Wireless Local Area Network, referred to as WLAN) fast development, the whole world is growing to the covering demand of WLAN.Institute of Electrical and Electric Engineers (Institute for Electrical and Electronic Engineers, referred to as IEEE) industrial specification 802.11 working groups have successively defined 802.11a, 802.11b, 802.11g etc. a series of WLAN technical standards, main physical layer protocol (the Physical Layer Protocol that formulates, referred to as PHY) and media access control (Media Access Control, referred to as MAC) layer standard.Other task groups have been there are again subsequently, be devoted to the standard that development relates to existing 802.11 technological improvements, for example, the resource that 802.11ah task groups is exempted from licensed band below mainly for 1GHz frequency range is utilized, for supporting the new application such as intelligent grid, sensor network and Cellular Networks load balancing.
In existing 802.11 technical specifications, its basic network architecture is an access point (Access Point, be called for short AP) and website (the non-AP Station of a plurality of non-access point associated with AP, abbreviation STA) formed a Basic Service Set (Basic Service Set, be called for short BSS), each Basic Service Set has a BSSID (Basic Service Set Identifier, referred to as BSSID).Each website can adopt MAC Address as its identifier, associated identifiers (the Association Identifier that also can adopt AP associated therewith to distribute, be called for short AID) as its identifier, also can adopt the result that associated identifiers is carried out to Mathematical treatment as its identifier, Mathematical treatment comprises blocks (part AID), or carry out hash etc., processing method is that AP and website are known altogether, in this collectively for partial association identifier (partial AID) is as its identifier, access point can adopt BSSID as its identifier, also can adopt a predefined particular value of system to identify as the associated identifiers of AP, also can adopt the result that associated identifiers is carried out to Mathematical treatment as its identifier, Mathematical treatment comprises blocks (part AID), or carry out hash etc., processing method is that AP and website are known altogether, in this collectively for partial association identifier (partial AID) is as its identifier, also can simplify BSSID simultaneously, the method for simplifying that is called part BSSID (partial BSSID) this method for simplifying and associated identifiers can be the same or different.
802.11ah task groups is when formulating its technical specification at present, wish that the technical specification of 802.11ah continues to use the technical specification of existing 802.11 series as far as possible, in order to meet the peculiar attribute of 802.11ah itself, also can make suitable modification or formulate new technical specification existing technical specification simultaneously.802.11ah task groups determines that the bandwidth of operation of technology can be 1/2/4/8/16MHz at present; adopt OFDM (Orthogonal Frequency Division Multiplexing; referred to as OFDM) modulation technique; each OFDM symbol (comprising long protection interval) duration is 40 μ s, and in these relatively existing 802.11 series standards, the duration of each OFDM symbol has expanded 10 times.In other words, send identical information, the equipment power dissipation that adopts 802.11ah technical specification meets 10 times of existing 802.11 technical specification equipment by being.Therefore,, for the equipment that the meets 802.11ah technical specification high requirements aspect energy-conservation, need to, with the more brief mode of intelligence transmission, complete corresponding function.
In existing 802.11 technical specifications, the signaling territory of the physics frame head of a radio frames conventionally comprises LENGTH/DURATION subdomain, STBC subdomain, separates mediation coding (Modulation and Coding Scheme, referred to as MCS) subdomain, type of coding subdomain, CRC(cyclic redundancy code) subdomain such as subdomain and reservation bit, physical frame load, referred to herein as general signaling territory, is conventionally followed in this signaling territory after general signaling territory.What physical layer frame load was mainly carried is the data of MAC layer, and the information of some subdomain in signaling territory is conventionally all for physical frame load, MCS subdomain for example, the Modulation and Coding Scheme that the load of indication physical frame is used.If a radio frames do not carry physical layer load, what meaning some subdomain in the signaling territory of physics frame head has not just had as MCS subdomain so.Thereby in the fewer situation of load information amount, can compress the information in signaling territory, and load information is carried in signaling territory.But in current radio frames form, the bit number of signaling territory beared information is limited, and the identification information of transmitting-receiving side is carried in meeting in load information, the bit number that this information takies is more, as MAC Address (48 bits), BSSID(48 position bit), AID(13 position bit) etc., even if use the identification information after compression, still may be because the bit number using too much causes the bit number in signaling territory to be not enough to carry necessary information.
In correlation technique, the information that the first address information subdomain and the second address information subdomain carry is according to transmit leg and recipient and definite.For example, when transmit leg is website and recipient while being access point, the information that the first address information subdomain carries is website, and the information that the second address information subdomain carries is access point; When transmit leg is access point and recipient while being website, the information that the first address information subdomain carries is access point, and the information that the second address information subdomain carries is website.Like this, just produced following problem, suppose for carrying the informational needs 8 bit address information subdomains of website and for carrying the informational needs 13 bit address information subdomains of access point, in order to meet above-mentioned carrying demand, the first address information subdomain and the second address information subdomain all need each to reserve 13 totally 26 bit address information subdomains.But, no matter when transmit leg is website and recipient while being access point, or when transmit leg be access point and recipient while being website, the address information subdomain that it applies to is only to add 13 21 of obtaining by above-mentioned 8.Obviously, the mode of above-mentioned the first address information subdomain and the second address information subdomain beared information has caused the waste of address information subdomain.
Summary of the invention
The embodiment of the present invention provides a kind of radio frames processing method and system, has caused the problem of the waste of address information subdomain at least to solve the mode of the first address information subdomain and the second address information subdomain beared information in correlation technique.
The embodiment of the present invention provides a kind of radio frames processing method, comprise: sending direction recipient sends radio frames, wherein, transmit leg is that the concentrated website of basic service and recipient are the concentrated access points of basic service, or transmit leg is that the concentrated access point of basic service and recipient are the concentrated websites of basic service, in the physics frame head signaling territory of radio frames, carry the first address information subdomain and the second address information subdomain, the first address information subdomain is used for identifying access point, and the second address information subdomain is used for identifying website; Recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is the radio frames that sends to self.
It is one of following that the information of carrying in the first address information subdomain further, comprises: the part BSSID of access point, the partial association identifier of access point, the associated identifiers of access point; It is one of following that the information of carrying in the second address information subdomain comprises: the partial association identifier of the associated identifiers of website, website.
Further, when transmit leg is website and recipient while being access point, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the first address information subdomain; If the information of the first address information subdomain carrying with self part BSSID or the partial association identifier of self or the associated identifiers of self in one of mate, definite radio frames is the radio frames that sends to oneself.
Further, when transmit leg is website and recipient while being access point, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the second address information subdomain; If mate one of in the partial association identifier of the associated identifiers of the information of the second address information subdomain carrying and associated with self website or associated with self website, definite radio frames is the radio frames that associated with self website sends to oneself.
Further, when transmit leg is access point and recipient while being website, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the second address information subdomain; If the information of the second address information subdomain carrying with self associated identifiers or the partial association identifier of self in one of mate, definite radio frames is the radio frames that sends to oneself.
Further, when transmit leg is access point and recipient while being website, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the first address information subdomain and the second address information subdomain; If mate one of in the part BSSID of access point that the information of the first address information subdomain carrying is associated with self or the associated identifiers of the partial association identifier of self associated access point or self associated access point, and, the information of the second address information subdomain carrying with self associated identifiers or partial association identifier in one of mate, definite radio frames is the radio frames that access point in the Basic Service Set at self place sends to self.
Further, the first address information subdomain is fixed at the bit number of physics frame head signaling Yu Zhong position and use.
Further, the second address information subdomain is fixed at the bit number of physics frame head signaling Yu Zhong position and use.
Further, the bit number that the first address information subdomain is used in physics frame head signaling territory is different from the bit number that the second address information subdomain is used in physics frame head signaling territory.
The embodiment of the present invention provides a kind of radio frames treatment system, comprise transmit leg and recipient, wherein, transmit leg is that the concentrated website of basic service and recipient are the concentrated access points of basic service, or transmit leg is that the concentrated access point of basic service and recipient are the concentrated websites of basic service, transmit leg comprises: sending module, for sending radio frames to recipient, wherein, in the physics frame head signaling territory of radio frames, carry the first address information subdomain and the second address information subdomain, the first address information subdomain is used for identifying access point, the second address information subdomain is used for identifying website, recipient comprises: determination module, and for judging that according to the first address information subdomain and/or the second address information subdomain radio frames is the radio frames that sends to self.
In the embodiment of the present invention, no matter when transmit leg is that website and recipient are while being access point, or when transmit leg is access point and recipient while being website, the information that the first address information subdomain carries is to be fixedly all access point, and the information that the second address information subdomain carries is to be fixedly all website.Like this, even if for the figure place of address information subdomain of carrying website from different for carrying the figure place of address information subdomain of access point, also needn't reserve too much address information subdomain, thereby avoid the waste of address information subdomain.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the flow chart of the radio frames processing method of the embodiment of the present invention;
Fig. 2 is according to the schematic diagram of the beam forming report poll frame form of the embodiment of the present invention;
Fig. 3 is according to the schematic diagram of the form of the PS-Poll frame of the embodiment of the present invention;
Fig. 4 is according to the structured flowchart of the radio frames treatment system of the embodiment of the present invention.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Repeating data processing method in following examples can be applied on server, and this server can be exclusively used in the processing of carrying out repeating data, can certainly be applied on one group of server.Or the module also can be used as in server is public with the server of carrying out other functions.
The invention provides a kind of radio frames processing method, Fig. 1 is according to the flow chart one of the radio frames processing method of the embodiment of the present invention, as shown in Figure 1, comprises that following step S102 is to step S104.
Step S102, sending direction recipient sends radio frames, wherein, transmit leg is that the concentrated website of basic service and recipient are the concentrated access points of basic service, or transmit leg is that the concentrated access point of basic service and recipient are the concentrated websites of basic service, in the physics frame head signaling territory of radio frames, carry the first address information subdomain and the second address information subdomain, the first address information subdomain is used for identifying access point, and the second address information subdomain is used for identifying website.
Step S104, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is the radio frames that sends to self.
In correlation technique, the mode of the first address information subdomain and the second address information subdomain beared information has caused the waste of address information subdomain.In the embodiment of the present invention, no matter when transmit leg is that website and recipient are while being access point, or when transmit leg is access point and recipient while being website, the information that the first address information subdomain carries is to be fixedly all access point, and the information that the second address information subdomain carries is to be fixedly all website.Like this, even if for the figure place of address information subdomain of carrying website from different for carrying the figure place of address information subdomain of access point, also needn't reserve too much address information subdomain, thereby avoid the waste of address information subdomain.
It is one of following that the information of carrying in the first address information subdomain further, comprises: the part BSSID of access point, the partial association identifier of access point, the associated identifiers of access point; It is one of following that the information of carrying in the second address information subdomain comprises: the partial association identifier of the associated identifiers of website, website.
Further, when transmit leg is website and recipient while being access point, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the first address information subdomain; If the information of the first address information subdomain carrying with self part BSSID or the partial association identifier of self or the associated identifiers of self in one of mate, definite radio frames is the radio frames that sends to oneself.
Further, when transmit leg is website and recipient while being access point, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the second address information subdomain; If mate one of in the partial association identifier of the associated identifiers of the information of the second address information subdomain carrying and associated with self website or associated with self website, definite radio frames is the radio frames that associated with self website sends to oneself.
Further, when transmit leg is access point and recipient while being website, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the second address information subdomain; If the information of the second address information subdomain carrying with self associated identifiers or the partial association identifier of self in one of mate, definite radio frames is the radio frames that sends to oneself.
Further, when transmit leg is access point and recipient while being website, recipient judges that according to the first address information subdomain and/or the second address information subdomain radio frames is to send to the radio frames of self to comprise: recipient resolves the first address information subdomain and the second address information subdomain; If mate one of in the part BSSID of access point that the information of the first address information subdomain carrying is associated with self or the associated identifiers of the partial association identifier of self associated access point or self associated access point, and, the information of the second address information subdomain carrying with self associated identifiers or partial association identifier in one of mate, definite radio frames is the radio frames that access point in the Basic Service Set at self place sends to self.
Further, the first address information subdomain is fixed at the bit number of physics frame head signaling Yu Zhong position and use.
Further, the second address information subdomain is fixed at the bit number of physics frame head signaling Yu Zhong position and use.
Further, the bit number that the first address information subdomain is used in physics frame head signaling territory is different from the bit number that the second address information subdomain is used in physics frame head signaling territory.
Implementation procedure below in conjunction with a pair of embodiment of the present invention of preferred embodiment is described in detail.
Preferred embodiment one
It is example that the present embodiment be take the radio frames that the active that redesigns initiates.
Suppose that access point AP-1 set up a Basic Service Set, STA-1 is associated with AP-1.
STA-1 sends a radio frames to AP-1, this radio frames is a brief radio frames that there is no physical layer frame load, that the load information of the radio frames of original identical function is carried to the radio frames in physical layer frame head signaling territory, concrete, described radio frames only comprises San Ge territory: short training sequence territory, long training sequence territory and signaling territory, wherein N bit in signaling territory is specially as frame type indication, indicate the function of this radio frames, the concrete value of N bit is indicated the concrete function of this radio frames, N bit can be the bit of MCS subdomain, the first address information subdomain in signaling territory takies 9 bits, carry the part BSSID of AP-1, the second address information subdomain takies 13 bits, carry the associated identifiers AID of STA-1, tail bit and cyclic redundancy check (CRC) sequence are also carried in signaling territory, in addition according to the function of concrete radio frames, other corresponding informations also can be carried in signaling territory.
AP-1 receives above-mentioned radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving signaling territory, be used to indicate N bit of frame type, conclude the concrete function of this radio frames, and the first address information subdomain carry information in signaling territory mates with the part BSSID of oneself, AP-1 is after waiting for a short interFrameGap so, follow the concrete function of radio frames accordingly, and the STA-1 indicating to the second address information subdomain in the signaling territory of this radio frames according to the corresponding indication information in signaling territory sends response frame.
All the other websites receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving signaling territory, be used to indicate N bit of frame type, conclude the concrete function of this radio frames, the part BSSID coupling of the AP that the first address information subdomain carry information in signaling territory is associated with oneself, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that location information subdomain 1 carry information is associated with oneself does not mate, the second address information subdomain carry information mates with own AID, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be set as the case may be.
All the other access points receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, or by resolving MCS subdomain value in signaling territory, conclude the concrete function of this radio frames, the first address information subdomain carry information in signaling territory does not mate with the part BSSID of oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be set as the case may be.
Preferred embodiment two
This preferred embodiment two take request feedback channel metrical information as example described website by brief information transmission reception the radio frames from access point.
When carrying out closed loop transmission, while transmitting as Beamforming, initiator Beamformer need to know the channel information between itself and recipient Beamformee, so just need Beamformee carry out channel measurement and channel measurement information is fed back to Beamformer, if Beamformee does not feed back immediately after carrying out channel measurement, or while there is mistake in the channel measurement feedback information that Beamformer receives, Beamformer will send beam forming report poll (Beamforming Report Poll) frame so, request Beamformee feeds back whole channel measurement informations or Beamformer and fails the correct channel measurement information part receiving.Fig. 2 is that as shown in Figure 2, the mac frame load of beam forming report poll frame is less, can redesign this frame, utilizes less resource, completes its function according to the schematic diagram of the beam forming report poll frame form of the embodiment of the present invention.
Suppose that access point set up a Basic Service Set, website is associated with access point, carry out Beamforming transmission, Beamformer(transmit leg) be access point, Beamformee(recipient) be website, website does not have at once to access point feedback channel metrical information after completing channel measurement simultaneously.Over time, access point need to carry out Beamforming transmission with website, but access point does not have the efficient channel information between access point and website.
Now, it is beam forming report poll frame that access point sends a radio frames with request feedback channel metrical information function, this radio frames only comprises San Ge territory: short training sequence territory, long training sequence territory and signaling territory, wherein N bit in signaling territory is specially as frame type indication, N is more than or equal to 1 integer, it is a radio frames with request feedback channel metrical information function that the value of N bit is indicated this frame, the first address information subdomain in signaling territory takies 9 bits, carry the part BSSID of access point, the second address information subdomain takies 13 bits, carry the associated identifiers AID of website, in addition, in this radio frames signaling territory, also carry all segmentations of indication feedback of feedback segmented retransmission message bit pattern (4 bits or 8 bits), feedback bandwidth indication information (2 bits, be used to indicate the spendable maximum bandwidth of feedback channel information) tail bit and cyclic redundancy check (CRC) sequence, this verification sequence can be following thrin, but be that receiving-transmitting sides is appointed in advance, comprise the independent verification sequence for signaling territory, or be the associating verification sequence of part BSSID for signaling territory and additional information, or the associating verification sequence that is BSSID for signaling territory and additional information.
Website receives above-mentioned radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, and the part BSSID of the access point that the first address information subdomain carry information in signaling territory is associated with oneself coupling, the second address information subdomain carry information mates with the AID of oneself simultaneously, judge that this radio frames is the radio frames that access point in the Basic Service Set at own place sends to oneself, website is after waiting for a short interFrameGap so, according to the indication of feeding back segmented retransmission message bit pattern in signaling territory, complete channel measurement information is fed back to access point.
All the other websites receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the part BSSID coupling of the access point that the first address information subdomain carry information in signaling territory is associated with oneself, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the access point that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information mates with own AID, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
All the other access points receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the first address information subdomain carry information in signaling territory does not mate with the part BSSID of oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
Preferred embodiment three
This preferred embodiment two take request feedback channel metrical information as example described website by brief information transmission reception the radio frames from access point.This preferred embodiment three is only definite the second address information subdomain carry information and the operation of self whether mating of website with the difference of preferred embodiment two.
When carrying out closed loop transmission, while transmitting as Beamforming, initiator Beamformer need to know the channel information between itself and recipient Beamformee, so just need Beamformee carry out channel measurement and channel measurement information is fed back to Beamformer, if Beamformee does not feed back immediately after carrying out channel measurement, or while there is mistake in the channel measurement feedback information that Beamformer receives, Beamformer will send beam forming report poll (Beamforming Report Poll) frame so, request Beamformee feeds back whole channel measurement informations or Beamformer and fails the correct channel measurement information part receiving, the poll frame of beam forming report at present form as shown in Figure 2, as seen in Figure 2, the mac frame load of beam forming report poll frame is less, can redesign this frame, utilize less resource, complete its function.
Suppose that access point set up a Basic Service Set, website is associated with access point, carry out Beamforming transmission, Beamformer(transmit leg) be access point, Beamformee(recipient) be website, website does not have at once to access point feedback channel metrical information after completing channel measurement simultaneously.Over time, access point need to carry out Beamforming transmission with website, but access point does not have the efficient channel information between access point and website.
Now, it is beam forming report poll frame that access point sends a radio frames with request feedback channel metrical information function, this radio frames only comprises San Ge territory: short training sequence territory, long training sequence territory and signaling territory, wherein N bit in signaling territory is specially as frame type indication, N is more than or equal to 1 integer, it is a radio frames with request feedback channel metrical information function that the value of N bit is indicated this frame, the first address information subdomain in signaling territory takies 9 bits, carry the part BSSID of access point, the second address information subdomain takies 13 bits, carry the associated identifiers AID of website, in addition, in this radio frames signaling territory, also carry all segmentations of indication feedback of feedback segmented retransmission message bit pattern (4 bits or 8 bits), feedback bandwidth indication information (2 bits, be used to indicate the spendable maximum bandwidth of feedback channel information) tail bit and cyclic redundancy check (CRC) sequence, this verification sequence can be following thrin, but be that receiving-transmitting sides is appointed in advance, comprise the independent verification sequence for signaling territory, or be the associating verification sequence of part BSSID for signaling territory and additional information, or the associating verification sequence that is BSSID for signaling territory and additional information.
Website receives above-mentioned radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, and the second address information subdomain carry information in signaling territory mates with the AID of oneself, judge that this radio frames is the radio frames that sends to oneself, website is after waiting for a short interFrameGap so, according to the indication of feeding back segmented retransmission message bit pattern in signaling territory, complete channel measurement information is fed back to the access point of the first address information subdomain indication in the signaling territory of received radio frames.
All the other websites receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the second address information subdomain carry information does not mate with own AID, judge that this radio frames is not the radio frames that sends to oneself, this abandons this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
All the other access points receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the first address information subdomain carry information in signaling territory does not mate with the part BSSID of oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
Preferred embodiment four
This preferred embodiment take request feedback channel metrical information as example described access point by brief information transmission reception the radio frames from website.
When carrying out closed loop transmission, while transmitting as Beamforming, initiator Beamformer need to know the channel information between itself and recipient Beamformee, so just need Beamformee carry out channel measurement and channel measurement information is fed back to Beamformer, if Beamformee does not feed back immediately after carrying out channel measurement, or while there is mistake in the channel measurement feedback information that Beamformer receives, Beamformer will send beam forming report poll (Beamforming Report Poll) frame so, request Beamformee feeds back whole channel measurement informations or Beamformer and fails the correct channel measurement information part receiving, the poll frame of beam forming report at present form as shown in Figure 2, as seen in Figure 2, the mac frame load of beam forming report poll frame is less, can redesign this frame, utilize less resource, complete its function.
Suppose that access point set up a Basic Service Set, website is associated with access point, carry out Beamforming transmission, Beamformer(transmit leg) be website, Beamformee(is recipient) when the access point, simultaneously access point is divided into N section by channel feedback information and feeds back, and the value of N is to be more than or equal to 1 and be less than or equal to 4 or 8 integer, and website has only correctly received the channel measurement information of n section AP feedback.
Now, it is that this radio frames of beam forming report poll frame only comprises San Ge territory: short training sequence territory that website sends a radio frames with request feedback channel metrical information function, long training sequence territory and signaling territory, wherein N bit in signaling territory is specially as frame type indication, N is more than or equal to 1 integer, it is a radio frames with request feedback channel metrical information function that the value of N bit is indicated this frame, the first address information subdomain in signaling territory takies 9 bits, carry the part BSSID of access point, the second address information subdomain takies 13 bits, carry the associated identifiers AID of website, in addition, in this radio frames signaling territory, also carry the segmentation (4 bits or 8 bits) that feedback segmented retransmission message bit pattern indication feedback does not correctly receive, feedback bandwidth indication information (2 bits, be used to indicate the spendable maximum bandwidth of feedback channel information) tail bit and cyclic redundancy check (CRC) sequence, this verification sequence can be following thrin, but receiving-transmitting sides is appointed in advance, comprise the independent verification sequence for signaling territory, or be the associating verification sequence of part BSSID for signaling territory and additional information, or the associating verification sequence that is BSSID for signaling territory and additional information.
Access point receives above-mentioned radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, and the first address information subdomain carry information in signaling territory mates with the part BSSID of oneself, access point is after waiting for a short interFrameGap so, according to the indication of feeding back segmented retransmission message bit pattern in signaling territory, the correct channel measurement information segmentation receiving of transmission last time is fed back to the website of the second address information subdomain indication in the signaling territory of the radio frames receiving.
All the other websites receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the part BSSID coupling of the AP that the first address information subdomain carry information in signaling territory is associated with oneself, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information mates with own AID, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
All the other access points receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the first address information subdomain carry information in signaling territory does not mate with the part BSSID of oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
Preferred embodiment five
This preferred embodiment take request feedback channel metrical information as example described access point by brief information transmission reception the radio frames from website.This preferred embodiment five and the difference of preferred embodiment three are that access point only determines the first address information subdomain carry information and the operation of self whether mating.
When carrying out closed loop transmission, while transmitting as Beamforming, initiator Beamformer need to know the channel information between itself and recipient Beamformee, so just need Beamformee carry out channel measurement and channel measurement information is fed back to Beamformer, if Beamformee does not feed back immediately after carrying out channel measurement, or while there is mistake in the channel measurement feedback information that Beamformer receives, Beamformer will send beam forming report poll (Beamforming Report Poll) frame so, request Beamformee feeds back whole channel measurement informations or Beamformer and fails the correct channel measurement information part receiving, the poll frame of beam forming report at present form as shown in Figure 2, as seen in Figure 2, the mac frame load of beam forming report poll frame is less, can redesign this frame, utilize less resource, complete its function.
Suppose that access point set up a Basic Service Set, website is associated with access point, carry out Beamforming transmission, Beamformer(transmit leg) be website, Beamformee(is recipient) when the access point, simultaneously access point is divided into N section by channel feedback information and feeds back, and the value of N is to be more than or equal to 1 and be less than or equal to 4 or 8 integer, and website has only correctly received the channel measurement information of n section AP feedback.
Now, it is that this radio frames of beam forming report poll frame only comprises San Ge territory: short training sequence territory that website sends a radio frames with request feedback channel metrical information function, long training sequence territory and signaling territory, wherein in signaling territory, carry MCS subdomain, and it is a radio frames with request feedback channel metrical information function that the specific value of MCS subdomain is indicated this frame, the first address information subdomain in signaling territory takies 9 bits, carry the part BSSID of access point, the second address information subdomain takies 13 bits, carry the associated identifiers AID of website, in addition, in this radio frames signaling territory, also carry the segmentation (4 bits or 8 bits) that feedback segmented retransmission message bit pattern indication feedback does not correctly receive, feedback bandwidth indication information (2 bits, be used to indicate the spendable maximum bandwidth of feedback channel information) tail bit and cyclic redundancy check (CRC) sequence, this verification sequence can be following thrin, but receiving-transmitting sides is appointed in advance, comprise the independent verification sequence for signaling territory, or be the associating verification sequence of part BSSID for signaling territory and additional information, or the associating verification sequence that is BSSID for signaling territory and additional information.
Access point receives above-mentioned radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving MCS subdomain value in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, and the first address information subdomain carry information in signaling territory mates with the part BSSID of oneself, simultaneously the second address information subdomain carry information be the AID of associated with oneself website, access point is after waiting for a short interFrameGap so, according to the indication of feeding back segmented retransmission message bit pattern in signaling territory, the incorrect channel measurement information segmentation receiving of transmission last time is fed back to website.
All the other websites receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving MCS subdomain value in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the part BSSID coupling of the AP that the first address information subdomain carry information in signaling territory is associated with oneself, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information mates with own AID, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
All the other access points receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving MCS subdomain value in signaling territory, conclude that this radio frames is the radio frames with request feedback channel metrical information function, the first address information subdomain carry information in signaling territory does not mate with the part BSSID of oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds a maximum radio frame transmission time, and wherein m value is to be more than or equal to 1 integer.
Preferred embodiment six
The present embodiment is example with the energy-conservation poll frame of power ratio (power save-poll frame is called for short PS-Poll frame).
Suppose that access point AP-1 set up a Basic Service Set, support energy-conservation (Power save, abbreviation PS) STA-1 of pattern is associated with AP-1, when STA-1 is after dormancy finishes to wake up, wish to know whether AP-1 is cached with the downlink data that sends to oneself, or STA-1 hears after the down dispatch information of AP-1 transmission, or AP-1 has the downlink data that sends to oneself, STA-1 can proactive notification AP-1 lays oneself open to waking state can downlink data receiving, and STA-1 sends PS-Poll frame to AP-1 in above-mentioned two situations.PS-Poll frame is a mac frame at present, Fig. 3 is according to the schematic diagram of the form of the PS-Poll frame of the embodiment of the present invention, as shown in Figure 3, as seen in Figure 3, PS-Poll frame carry information is less, can redesign this frame, utilize the signaling territory of radio frames physical layer frame head to carry effective information, and complete its function without frame load territory.Embodiment is specific as follows:
STA-1 sends the radio frames of a PS-Poll function, this radio frames only comprises San Ge territory: short training sequence territory, long training sequence territory and signaling territory, wherein N bit in signaling territory is specially as frame type indication, N is more than or equal to 1 integer, it is a radio frames with request feedback channel metrical information function that the value of N bit is indicated this frame, the first address information subdomain in signaling territory takies 9 bits, carry the part BSSID of AP-1, the second address information subdomain takies 13 bits, carry the associated identifiers AID of STA-1, in addition, in this radio frames signaling territory, also carry tail bit and cyclic redundancy check (CRC) sequence, this verification sequence can be following thrin, but receiving-transmitting sides is appointed in advance, comprise the independent verification sequence for signaling territory, or be the associating verification sequence of part BSSID for signaling territory and additional information, or the associating verification sequence that is BSSID for signaling territory and additional information.
AP-1 receives above-mentioned radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames of PS-Poll function, and the first address information subdomain carry information in signaling territory mates with the part BSSID of oneself, the STA-1 that AP-1 judges the second address information subdomain indication in the signaling territory of this radio frames so, can downlink data receiving at present in waking state.
All the other websites receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames of PS-Poll function, the part BSSID coupling of the AP that the first address information subdomain carry information in signaling territory is associated with oneself, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that location information subdomain 1 carry information is associated with oneself does not mate, the second address information subdomain carry information mates with own AID, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds an ACK(acknowledgment) the frame transmission time, or wherein m value is to be more than or equal to 1 integer.
All the other access points receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving N the bit that is used to indicate frame type in signaling territory, conclude that this radio frames is the radio frames of PS-Poll function, the first address information subdomain carry information in signaling territory does not mate with the part BSSID of oneself, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, wait for new radio frames indication, and carry out channel access according to new indication, if new radio frames indication do not detected in predefined time T, can carry out channel access according to existing rule.Predefined time T can be that m short frame interFrameGap adds an ACK(acknowledgment) the frame transmission time, or wherein m value is to be more than or equal to 1 integer.
Preferred embodiment seven
The present embodiment is example with the energy-conservation poll frame of power ratio (power save-poll frame is called for short PS-Poll frame).
Suppose that access point AP-1 set up a Basic Service Set, support energy-conservation (Power save, abbreviation PS) STA-1 of pattern is associated with AP-1, when STA-1 is after dormancy finishes to wake up, wish to know whether AP-1 is cached with the downlink data that sends to oneself, or STA-1 hears after the down dispatch information of AP-1 transmission, or AP-1 has the downlink data that sends to oneself, STA-1 can proactive notification AP-1 lays oneself open to waking state can downlink data receiving, STA-1 sends PS-Poll frame to AP-1 in above-mentioned two situations, PS-Poll frame is a mac frame at present, form as shown in Figure 3, as seen in Figure 3, PS-Poll frame carry information is less, can redesign this frame, utilize the signaling territory of radio frames physical layer frame head to carry effective information, and complete its function without frame load territory.Embodiment is specific as follows:
STA-1 sends the radio frames of a PS-Poll function, this radio frames only comprises San Ge territory: short training sequence territory, long training sequence territory and signaling territory, wherein in signaling territory, carry MCS subdomain, and it is a radio frames with request feedback channel metrical information function that the specific value of MCS subdomain is indicated this frame, the first address information subdomain in signaling territory takies 9 bits, carry the part BSSID of AP-1, the second address information subdomain takies 13 bits, carry the associated identifiers AID of STA-1, in addition, in this radio frames signaling territory, also carry the channel access time of reservation, tail bit and cyclic redundancy check (CRC) sequence, this verification sequence can be following thrin, but receiving-transmitting sides is appointed in advance, comprise the independent verification sequence for signaling territory, or be the associating verification sequence of part BSSID for signaling territory and additional information, or the associating verification sequence that is BSSID for signaling territory and additional information.
AP-1 receives above-mentioned radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving MCS subdomain value in signaling territory, conclude that this radio frames is the radio frames of PS-Poll function, and the first address information subdomain carry information in signaling territory mates with the part BSSID of oneself, the STA-1 that AP-1 judges the second address information subdomain indication in the signaling territory of this radio frames so, can downlink data receiving at present in waking state.
All the other websites receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving MCS subdomain value in signaling territory, conclude that this radio frames is the radio frames of PS-Poll function, the part BSSID coupling of the AP that the first address information subdomain carry information in signaling territory is associated with oneself, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that the first address information subdomain carry information is associated with oneself does not mate, the second address information subdomain carry information does not mate with own AID, or the part BSSID of the AP that location information subdomain 1 carry information is associated with oneself does not mate, the second address information subdomain carry information mates with own AID, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, and utilize the channel access time of the reservation that radio frames carries according to the network allocation vector of existing Policy Updates oneself (network allocation vector).
All the other access points receive after this radio frames, detect cyclic redundancy check (CRC) sequence, if mistake, abandon this frame, if verification is correct, by resolving MCS subdomain value in signaling territory, conclude that this radio frames is the radio frames of PS-Poll function, the first address information subdomain carry information in signaling territory does not mate with the part BSSID of oneself, judge that this radio frames is not the radio frames that sends to oneself, abandon this frame, and utilize the channel access time of the reservation that radio frames carries according to existing Policy Updates NAV.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
The embodiment of the present invention provides a kind of radio frames treatment system, and this radio frames treatment system can be for realizing above-mentioned radio frames processing method.Fig. 4 is according to the structured flowchart of the radio frames treatment system of the embodiment of the present invention, as shown in Figure 4, below its structure is described in detail.
Radio frames treatment system comprises transmit leg 42 and recipient 44, wherein, transmit leg 42 is that the concentrated website of basic service and recipient are the concentrated access points of basic service, or transmit leg is that the concentrated access point of basic service and recipient are the concentrated websites of basic service, transmit leg 42 comprises: sending module 422, for sending radio frames to recipient, wherein, in the physics frame head signaling territory of radio frames, carry the first address information subdomain and the second address information subdomain, the first address information subdomain is used for identifying access point, the second address information subdomain is used for identifying website, recipient 44 comprises: determination module 442, be connected to sending module 422, for the first address information subdomain and/or the second address information subdomain that carry according to the physics frame head signaling territory of the radio frames of sending module 422 transmissions, judge that radio frames is the radio frames that sends to self.
It should be noted that, the radio frames treatment system of describing in device embodiment is corresponding to above-mentioned embodiment of the method, and its concrete implementation procedure had been carried out detailed description in embodiment of the method, did not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, a kind of radio frames processing method and system are provided.In the embodiment of the present invention, no matter when transmit leg is that website and recipient are while being access point, or when transmit leg is access point and recipient while being website, the information that the first address information subdomain carries is to be fixedly all access point, and the information that the second address information subdomain carries is to be fixedly all website.Like this, even if for the figure place of address information subdomain of carrying website from different for carrying the figure place of address information subdomain of access point, also needn't reserve too much address information subdomain, thereby avoid the waste of address information subdomain.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, 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., within all should being included in protection scope of the present invention.
Claims (10)
1. a radio frames processing method, is characterized in that comprising:
Sending direction recipient sends radio frames, wherein, described transmit leg is that the concentrated website of basic service and described recipient are the concentrated access points of described basic service, or described transmit leg is that the concentrated access point of described basic service and described recipient are the concentrated websites of described basic service, in the physics frame head signaling territory of described radio frames, carry the first address information subdomain and the second address information subdomain, described the first address information subdomain is used for identifying described access point, and described the second address information subdomain is used for identifying described website;
Described recipient judges that according to described the first address information subdomain and/or described the second address information subdomain described radio frames is the radio frames that sends to self.
2. method according to claim 1, it is characterized in that, it is one of following that the information of carrying in described the first address information subdomain comprises: the partial association identifier of the part BSSID of described access point, described access point, the associated identifiers of described access point; It is one of following that the information of carrying in described the second address information subdomain comprises: the partial association identifier of the associated identifiers of described website, described website.
3. method according to claim 2, it is characterized in that, when described transmit leg is described website and described recipient while being described access point, described recipient judges that according to described the first address information subdomain and/or the second address information subdomain described radio frames is to send to the radio frames of self to comprise:
Described recipient resolves described the first address information subdomain;
If the information of described the first address information subdomain carrying with self part BSSID or the partial association identifier of self or the associated identifiers of self in one of mate, definite described radio frames is the radio frames that sends to oneself.
4. method according to claim 3, it is characterized in that, when described transmit leg is described website and described recipient while being described access point, described recipient judges that according to described the first address information subdomain and/or the second address information subdomain described radio frames is to send to the radio frames of self to comprise:
Described recipient resolves described the second address information subdomain;
If mate one of in the partial association identifier of the associated identifiers of the information of described the second address information subdomain carrying and associated with self website or associated with self website, definite described radio frames is the radio frames that associated with self website sends to oneself.
5. method according to claim 2, it is characterized in that, when described transmit leg is described access point and described recipient while being described website, described recipient judges that according to described the first address information subdomain and/or described the second address information subdomain described radio frames is to send to the radio frames of self to comprise:
Described recipient resolves the second address information subdomain;
If the information of described the second address information subdomain carrying with self associated identifiers or the partial association identifier of self in one of mate, definite described radio frames is the radio frames that sends to oneself.
6. method according to claim 2, it is characterized in that, when described transmit leg is described access point and described recipient while being described website, described recipient judges that according to described the first address information subdomain and/or described the second address information subdomain described radio frames is to send to the radio frames of self to comprise:
Described recipient resolves the first address information subdomain and the second address information subdomain;
If mate one of in the part BSSID of access point that the information of the first address information subdomain carrying is associated with self or the associated identifiers of the partial association identifier of self associated access point or self associated access point, and, the information of described the second address information subdomain carrying with self associated identifiers or partial association identifier in one of mate, definite described radio frames is the radio frames that access point in the Basic Service Set at self place sends to self.
7. according to the method described in any one in claim 1 to 6, it is characterized in that, described the first address information subdomain is fixed at the bit number of described physics frame head signaling Yu Zhong position and use.
8. according to the method described in any one in claim 1 to 6, it is characterized in that, described the second address information subdomain is fixed at the bit number of described physics frame head signaling Yu Zhong position and use.
9. according to the method described in any one in claim 1 to 6, it is characterized in that, the bit number that described the first address information subdomain is used in described physics frame head signaling territory is different from the bit number that described the second address information subdomain is used in described physics frame head signaling territory.
10. a radio frames treatment system, it is characterized in that comprising transmit leg and recipient, wherein, described transmit leg is that the concentrated website of basic service and described recipient are the concentrated access points of described basic service, or described transmit leg is that the concentrated access point of described basic service and described recipient are the concentrated websites of described basic service
Described transmit leg comprises: sending module, for sending radio frames to described recipient, wherein, in the physics frame head signaling territory of described radio frames, carry the first address information subdomain and the second address information subdomain, described the first address information subdomain is used for identifying described access point, and described the second address information subdomain is used for identifying described website;
Described recipient comprises: determination module, and for judging that according to described the first address information subdomain and/or described the second address information subdomain described radio frames is the radio frames that sends to self.
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| US12150105B2 (en) | 2016-03-04 | 2024-11-19 | Wilus Institute Of Standards And Technology Inc. | Wireless communication method and wireless communication terminal in basic service set overlapping with another basic service set |
| CN105979608A (en) * | 2016-04-21 | 2016-09-28 | 珠海市魅族科技有限公司 | Communication method and communication device for wireless local area network, and access point |
| CN107359960A (en) * | 2016-05-10 | 2017-11-17 | 华为技术有限公司 | The transmission of radio frames and method of reseptance and device |
| CN107359960B (en) * | 2016-05-10 | 2023-11-10 | 华为技术有限公司 | Method and device for sending and receiving wireless frames |
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