CN104581739A - Wireless communication method and wireless communication equipment - Google Patents
Wireless communication method and wireless communication equipment Download PDFInfo
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- CN104581739A CN104581739A CN201310486355.1A CN201310486355A CN104581739A CN 104581739 A CN104581739 A CN 104581739A CN 201310486355 A CN201310486355 A CN 201310486355A CN 104581739 A CN104581739 A CN 104581739A
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- send opportunity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
- H04B7/0604—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching with predefined switching scheme
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
Abstract
The invention provides a wireless communication method which comprises steps as follows: a message frame is generated; the message frame is sent, wherein the message frame comprises one or more region labels, each region label corresponds one or more transmission opportunities which are used for data communication execution by a sender of the message frame. The invention further provides wireless communication equipment. With adoption of the technical scheme, a used region can be negotiated among multiple access points under OBSS (overlapping basic service set) through combination of a region used during communication between the access points and a terminal and the transmission opportunities, interference is avoided, meanwhile, the frequency spectrum utilization rate is increased, and the region throughput capacity is improved.
Description
Technical field
The present invention relates to mobile communication technology field, in particular to a kind of wireless communications method and a kind of Wireless Telecom Equipment.
Background technology
Along with WLAN(Wireless Local Area Networks) the continuous construction of network, the AP(Access Point disposed, access point) quantity get more and more, facilitating STA(station, website or terminal) access and use while, too increase and form OBSS(Overlapping Basic Service Set, Overlapping Basic Service Set) possibility.Ratio as shown in Figure 1, STA1 and AP1 establishes connection, STA2 and AP2 establishes connection, AP1 and AP2 covers mutually, define OBSS, if STA1 and AP1 communicates, STA2 also communicates with AP2 simultaneously, so there is STA1 to communication, STA2 between STA2 and AP2 to the interference of the processes such as the communication between STA1 and AP1, so must manage OBSS.
In the related, for there is the situation of interference under solution OBSS between AP, 802.11aa provides the management strategy of OBSS, specifically comprises:
1, AP broadcast QoS load information element in Beacon frame (beacon frame);
2, in distributed environment, expansion access control and timetable mechanism;
3, AP sends Hybrid Coordination Function control channel access (HCCA, hybrid coordinationfunction controlled channel access) send opportunity notification message frame (HCCA TXOPAdvertisement frame), notify the send opportunity that other AP determines oneself.
Particularly, Fig. 2 A shows the concrete structure schematic diagram of Hybrid Coordination Function control channel access send opportunity notification message frame.Meanwhile, Fig. 2 B shows the structural representation of the send opportunity reserved field in above-mentioned message frame, and it specifically can pass through " task interval " (i.e. duration section of send opportunity) and " time started " defines each send opportunity as seen.Therefore, when this message frame is sent to AP2 by AP1, then inform the send opportunity that AP2 self will use, make AP2 avoid communicating in same send opportunity.
Aforesaid way reduces the interference problem produced in OBSS well, but under above-mentioned control mode, when STA1 and AP1 communicates, in order to avoid conflict, then just can not communicate between STA2 and AP2 (the WLAN communication channel in correlation technique is monopolized, and uses omnidirectional antenna in 802.11aa), although so such scheme can avoid Communication Jamming, but because the same time only allows an AP to communicate, make the waste causing the communication resource.
Therefore, how while avoiding the interference under OBSS, improve utilance and the region throughput of frequency spectrum, become technical problem urgently to be resolved hurrily at present.
Summary of the invention
The present invention is just based on the problems referred to above, propose a kind of new wireless communication technology, can by the region used when communicating between access point with terminal and send opportunity be combined, make the region consulting between the multiple access points under OBSS to use, while avoiding producing interference, contribute to the utilance and the region throughput that improve frequency spectrum.
In view of this, the present invention proposes a kind of wireless communications method, comprise: generating messages frame, one or more area identification is comprised in described message frame, each described area identification corresponds to one or more send opportunity, and the transmit leg that described one or more send opportunity is used for described message frame performs data communication; Send described message frame.
In this technical scheme, for AP, after omnirange (360 °) corresponding for each AP is divided into multiple region, for each region arranges corresponding area identification, then when AP uses directional antenna, can only communicate in some or multiple region, other regions then do not communicate.By the mark of inclusion region in message frame, make to hold consultation to the service condition in region between AP, then for any two AP, the region simultaneously using possibility existence range to intersect can be avoided, thus avoid producing interference.Wherein, each area identification corresponds to one or more send opportunity (this one or more send opportunity can be included in message frame equally), the i.e. transmit leg of AP(message frame) can at this one or more send opportunity (TXOP, Transmissionopportunity) in, region corresponding to this area identification (being assumed to region A) is used to communicate, make the AP receiving above-mentioned message frame within the time period that described one or more send opportunity is corresponding, avoid using the region may causing interference to region A, and without the need to waiting for that above-mentioned send opportunity terminates, contribute to the utilance and the region throughput that improve frequency spectrum.
In this technical scheme, the send opportunity that concrete same area identification can be corresponding different, namely uses same antenna to communicate within the different time periods; Different area identifications can corresponding same send opportunity, namely only otherwise form self-interference, can use different antennas to communicate at one time in section.
In technique scheme, preferably, also comprise: described message frame is common action message frame or administrative messag frame.
In this technical scheme, message frame can be common action message frame or administrative messag frame, or also can be the message frame of other types, if such as this frame be common action message frame, it can be enhancement mode Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame; If this frame is management frames, it can be beacon frame (Beacon), in the frame with the form of information element (IEinformation Element) by area identification and send opportunity to broadcasting out.
In technique scheme, preferably, also comprise: described common action message frame or administrative messag frame are Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame.
In this technical scheme, the subdomain of instruction send opportunity is included in Hybrid Coordination Function control channel access send opportunity notification message frame, then by the mark of Adding Area in this message frame, can make to be associated between send opportunity and region, guarantee that the multiple AP in OBSS carry out data communication in the interior region that can not produce interference that uses at one time, avoid producing interference.
In technique scheme, preferably, also comprise: described one or more area identification comprises the frame head part of the media access control frame of described common action message frame or administrative messag frame or one or more positions of body section.
In this technical scheme, MAC(Medium Access Control can be utilized, media access control) frame head of frame or one or more reserved places of body section, place this area identification.
In technique scheme, preferably, also comprise: described one or more area identification comprises the one or more positions in the order territory of the body section of described media access control frame.
In this technical scheme, when one or more reserved places of the body section adopting mac frame place this area identification, particularly, this reserved place can be arranged in the order territory of the body section of mac frame, such as can occur with the form of IE, be placed in certain order territory of frame.
In technique scheme, preferably, also comprise: by carrying out beamforming training with service terminal, determine described one or more area identification, described area identification is sector mark or polarizing angle mark.
In this technical scheme, when AP and one or more STA connects, and when communicating with this one or more STA, then this one or more STA is the service terminal of this AP.AP and STA can pass through beamforming training, obtains relative position relation between the two, thus determines the polarizing angle of sector residing for STA or correspondence, and obtains corresponding area identification.Particularly, such as when area identification is " 0000001 ", represent and correspond to " region 1 ", when area identification is " 0000010 ", represents and correspond to " region 2 ".
In technique scheme, preferably, also comprise: described one or more send opportunity at least comprise time interval and the time started of service; Or at least comprise time started and end time.
In this technical scheme, send opportunity i.e. a time window, and each STA adopts identical or different time window, in different regions, carries out data communication with AP.By describing out time interval and the time started of service, or time started and end time, make to determine this send opportunity concrete corresponding time period, the AP then receiving this message frame can avoid within this time period, use the region that may produce interference exactly, and without the need to waiting for that this time period terminates to use other regions that can not produce interference to communicate simultaneously, thus contribute to the utilance and the region throughput that improve frequency spectrum.
In technique scheme, preferably, also comprise: according to delivering the cycle information comprised in transmission indicating information frame (DTIM), send described message frame.
In this technical scheme, with reference to the cycle information comprised in DTIM, the transmission to message frame can be realized.Particularly, the duration in above-mentioned cycle is 2
n× 100TU(Time Unit, chronomere), wherein, n be not more than 5 positive integer.
In technique scheme, preferably, also comprise: hold consultation with all recipients of described message frame, and using the clock of the designated communication side in the transmit leg of described message frame and described all recipients as reference clock, carry out time synchronized for other communication parties in described transmit leg and described recipient.
In this technical scheme, need between AP to carry out time synchronized, thus guarantee that the send opportunity that area identification in Effect-based operation frame is corresponding carries out processing and controlling.In a kind of situation, the mode that existing 802.11aa agreement can be adopted to specify is carried out synchronously; In another kind of situation, can hold consultation by between AP, and the clock therefrom selecting certain AP is as reference clock, the clock such as can giving tacit consent to certain AP is reference clock, or can send the clock of the AP of message frame as reference clock.
The invention allows for a kind of Wireless Telecom Equipment, comprise: data processing module, for generating messages frame, one or more area identification is comprised in described message frame, each described area identification corresponds to one or more send opportunity, and described one or more send opportunity is used for described Wireless Telecom Equipment and performs data communication; Data interaction module, for sending message frame.
In this technical scheme, Wireless Telecom Equipment can be AP, and data processing module can be the chip module of data processing in Wireless Telecom Equipment, and data interaction module is then equivalent to signal receiving/transmission device and antenna etc.For AP, after omnirange (360 °) corresponding for each AP is divided into multiple region, for each region arranges corresponding area identification, then when AP uses directional antenna, can only communicate in some or multiple region, other regions then do not communicate.By the mark of inclusion region in message frame, make to hold consultation to the service condition in region between AP, then for any two AP, the region simultaneously using possibility existence range to intersect can be avoided, thus avoid producing interference.Wherein, each area identification corresponds to one or more send opportunity (this one or more send opportunity can be included in message frame equally), the i.e. transmit leg of AP(message frame) can at this one or more send opportunity (TXOP, Transmission opportunity) in, region corresponding to this area identification (being assumed to region A) is used to communicate, make the AP receiving above-mentioned message frame within the time period that described one or more send opportunity is corresponding, avoid using the region may causing interference to region A, and without the need to waiting for that above-mentioned send opportunity terminates, contribute to the utilance and the region throughput that improve frequency spectrum.
In this technical scheme, the send opportunity that concrete same area identification can be corresponding different, namely uses same antenna to communicate within the different time periods; Different area identifications can corresponding same send opportunity, namely only otherwise form self-interference, can use different antennas to communicate at one time in section.
In technique scheme, preferably, described message frame is common action message frame or administrative messag frame.
In this technical scheme, message frame can be common action message frame or administrative messag frame, or also can be the message frame of other types, if such as this frame be common action message frame, it can be enhancement mode Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame; If this frame is management frames, it can be beacon frame (Beacon), in the frame with the form of information element (IEinformation Element) by area identification and send opportunity to broadcasting out.
In technique scheme, preferably, described common action message frame or administrative messag frame are Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame.
In this technical scheme, the subdomain of instruction send opportunity is included in Hybrid Coordination Function control channel access send opportunity notification message frame, then by the mark of Adding Area in this message frame, can make to be associated between send opportunity and region, guarantee that the multiple AP in OBSS carry out data communication in the interior region that can not produce interference that uses at one time, avoid producing interference.
In technique scheme, preferably, described one or more area identification comprises the frame head part of the media access control frame of described common action message frame or administrative messag frame or one or more positions of body section.
In this technical scheme, MAC(Medium Access Control can be utilized, media access control) frame head of frame or one or more reserved places of body section, place this area identification.
In technique scheme, preferably, described one or more area identification comprises the one or more positions in the order territory of the body section of described media access control frame.
In this technical scheme, when one or more reserved places of the body section adopting mac frame place this area identification, particularly, this reserved place can be arranged in the order territory of the body section of mac frame, such as can occur with the form of IE, be placed in certain order territory of frame.
In technique scheme, preferably, described data processing module also for: by carrying out beamforming training with service terminal, determine described one or more area identification, described area identification be sector mark or polarizing angle mark.
In this technical scheme, when AP and one or more STA connects, and when communicating with this one or more STA, then this one or more STA is the service terminal of this AP.AP and STA can pass through beamforming training, obtains relative position relation between the two, thus determines the polarizing angle of sector residing for STA or correspondence, and obtains corresponding area identification.Particularly, such as when area identification is " 0000001 ", represent and correspond to " region 1 ", when area identification is " 0000010 ", represents and correspond to " region 2 ".
In technique scheme, preferably, described one or more send opportunity at least comprise time interval and the time started of service; Or at least comprise time started and end time.
In this technical scheme, send opportunity i.e. a time window, and each STA adopts identical or different time window, in different regions, carries out data communication with AP.By describing out time interval and the time started of service, or time started and end time, make to determine this send opportunity concrete corresponding time period, the AP then receiving this message frame can avoid within this time period, use the region that may produce interference exactly, and without the need to waiting for that this time period terminates to use other regions that can not produce interference to communicate simultaneously, thus contribute to the utilance and the region throughput that improve frequency spectrum.
In technique scheme, preferably, described data interaction module, according to delivering the cycle information comprised in transmission indicating information frame (DTIM), sends described message frame.
In this technical scheme, with reference to the cycle information comprised in DTIM, the transmission to message frame can be realized.Particularly, the duration in above-mentioned cycle is 2
n× 100TU(Time Unit, chronomere), wherein, n be not more than 5 positive integer.
In technique scheme, preferably, described data interaction module also for: hold consultation with all recipients of described message frame, and using the clock of the designated communication side in described Wireless Telecom Equipment and described all recipients as reference clock, carry out time synchronized for other communication parties in described Wireless Telecom Equipment and described recipient.
In this technical scheme, need between AP to carry out time synchronized, thus guarantee that the send opportunity that area identification in Effect-based operation frame is corresponding carries out processing and controlling.In a kind of situation, the mode that existing 802.11aa agreement can be adopted to specify is carried out synchronously; In another kind of situation, can hold consultation by between AP, and the clock therefrom selecting certain AP is as reference clock, the clock such as can giving tacit consent to certain AP is reference clock, or can send the clock of the AP of message frame as reference clock.
By above technical scheme, can by the region used when communicating between access point with terminal and send opportunity be combined, make the region consulting between the multiple access points under OBSS to use, while avoiding producing interference, contribute to the utilance and the region throughput that improve frequency spectrum.
Accompanying drawing explanation
Fig. 1 shows in correlation technique schematic diagram when forming OBSS;
Fig. 2 A shows the structural representation of Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame in correlation technique;
Fig. 2 B shows the structural representation of the send opportunity reserved field in Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame in correlation technique;
Fig. 3 shows the flow chart of wireless communications method according to an embodiment of the invention;
Fig. 4 shows the structural representation of send opportunity reserved field according to an embodiment of the invention;
The schematic diagram that Fig. 5 A and 5B avoids interference under showing and descending OBSS according to an embodiment of the invention;
Fig. 6 shows the structural representation of Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame according to an embodiment of the invention;
Fig. 7 shows the block diagram of Wireless Telecom Equipment according to an embodiment of the invention.
Embodiment
In order to more clearly 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.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail 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 by the restriction of following public specific embodiment.
Fig. 3 shows the flow chart of wireless communications method according to an embodiment of the invention.
As shown in Figure 3, wireless communications method according to an embodiment of the invention, comprise: step 302, generating messages frame, one or more area identification is at least comprised in described message frame, each described area identification corresponds to one or more send opportunity, and the transmit leg that described one or more send opportunity is used for described message frame performs data communication; Step 304, sends described message frame.
In this technical scheme, for AP, after omnirange (360 °) corresponding for each AP is divided into multiple region, for each region arranges corresponding area identification, then when AP uses directional antenna, can only communicate in some or multiple region, other regions then do not communicate.By the mark of inclusion region in message frame, make to hold consultation to the service condition in region between AP, then for any two AP, the region simultaneously using possibility existence range to intersect can be avoided, thus avoid producing interference.Wherein, each area identification corresponds to one or more send opportunity (this one or more send opportunity can be included in message frame equally), the i.e. transmit leg of AP(message frame) can at this one or more send opportunity (TXOP, Transmissionopportunity) in, region corresponding to this area identification (being assumed to region A) is used to communicate, make the AP receiving above-mentioned message frame within the time period that described one or more send opportunity is corresponding, avoid using the region may causing interference to region A, and without the need to waiting for that above-mentioned send opportunity terminates, contribute to the utilance and the region throughput that improve frequency spectrum.
In this technical scheme, the send opportunity that concrete same area identification can be corresponding different, namely uses same antenna to communicate within the different time periods; Different area identifications can corresponding same send opportunity, namely only otherwise form self-interference, can use different antennas to communicate at one time in section.
Specifically as shown in Figure 4, can by the basis of Fig. 2 B, when comprising " period (Duration) ", " task interval (Service Interval) ", " time started (Start Time) " in send opportunity reserved field, add a subdomain " area identification (SectorID) " again, make to receive this message frame AP can thus specifically recognize which region the AP sending this message frame will use communicate.
As shown in Figure 5 A and 5B, AP1 and AP2 defines OBSS, and AP1 and STA1 connects, and AP2 and STA2 connects, then in order to avoid causing interference, and can by sending application-defined message frame.
Such as AP1 sends the first message frame to AP2, includes the mark in region 5 in this first message frame, and this mark corresponds to one or more send opportunity, then illustrate that use region 5 communicates with STA1 by AP1 in this one or more send opportunity; Simultaneously, AP2 is after the first message frame receiving AP1 transmission, the second message frame can also be returned to AP1, the mark in region 15 is included in such as this second message frame, and this mark corresponds to one or more send opportunity, then illustrate that use region 15 communicates with STA2 by AP2 in this one or more send opportunity.
Wherein, if when the send opportunity life period of AP1 and AP2 use is overlapping, then should avoid using the region that may produce interference.In such as Fig. 5 A, owing to employing the control of directional antenna and transmitting power, then the region 5 used in the same time and region 15 can respectively towards different directions, even if use same channel also can not produce interference; And in figure 5b, region 5 and region 16 towards time relative, as long as send opportunity life period is overlapping, even if then region overlapping also can proper communication and can not produce interference.
In technique scheme, preferably, also comprise: described message frame is common action message frame or administrative messag frame.
In this technical scheme, message frame can be common action message frame or administrative messag frame, or also can be the message frame of other types, if such as this frame be common action message frame, it can be enhancement mode Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame; If this frame is management frames, it can be beacon frame (Beacon), in the frame with the form of information element (IEinformation Element) by area identification and send opportunity to broadcasting out.
In technique scheme, preferably, also comprise: described common action message frame or administrative messag frame are Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame.
In this technical scheme, the subdomain of instruction send opportunity is included in Hybrid Coordination Function control channel access send opportunity notification message frame, then by the mark of Adding Area in this message frame, can make to be associated between send opportunity and region, guarantee that the multiple AP in OBSS carry out data communication in the interior region that can not produce interference that uses at one time, avoid producing interference.
Particularly, such as Fig. 6 shows the access of the Hybrid Coordination Function control channel after improving according to the technical scheme of the application (HCCA) send opportunity notification message frame, wherein include send opportunity retention frame as shown in Figure 4, can be used in the region used of negotiation communication between the aps and send opportunity.
Certainly, because the message frame shown in Fig. 6 obtains after improving the Hybrid Coordination Function control channel access send opportunity notification message frame of the prior art shown in Fig. 2 A, this message frame thus can be claimed for " strengthening (Enhanced) Hybrid Coordination Function control channel access send opportunity notification message frame ".
Wherein, specifically can when the value of " classification (Category) " be 4, represent that this message frame is for strengthening (Enhanced) Hybrid Coordination Function control channel access send opportunity notification message frame, this message frame can be common action frame or administrative messag frame.
And in order to distinguish with prior art, " common action territory (PublicAction) " in above-mentioned message frame needs to redefine, specifically as shown in table 1:
Table 1
In upper table, with the addition of when the value in common action territory is 25, represent that this message frame is for " enhancement mode Hybrid Coordination Function control channel access send opportunity push-notification-answer frame ".
In technique scheme, preferably, also comprise: described one or more area identification comprises the frame head part of the media access control frame of described common action message frame or administrative messag frame or one or more positions of body section.
In this technical scheme, MAC(Medium Access Control can be utilized, media access control) frame head of frame or one or more reserved places of body section, place this area identification.
In technique scheme, preferably, also comprise: described one or more area identification comprises the one or more positions in the order territory of the body section of described media access control frame.
In this technical scheme, when one or more reserved places of the body section adopting mac frame place this area identification, particularly, this reserved place can be arranged in the order territory of the body section of mac frame, such as can occur with the form of IE, be placed in certain order territory of frame.
In technique scheme, preferably, also comprise: by carrying out beamforming training with service terminal, determine described one or more area identification, described area identification is sector mark or polarizing angle mark.
In this technical scheme, when AP and one or more STA connects, and when communicating with this one or more STA, then this one or more STA is the service terminal of this AP.AP and STA can pass through beamforming training, obtains relative position relation between the two, thus determines the polarizing angle of sector residing for STA or correspondence, and obtains corresponding area identification.Particularly, such as when area identification is " 0000001 ", represent and correspond to " region 1 ", when area identification is " 0000010 ", represents and correspond to " region 2 ".
In technique scheme, preferably, also comprise: described one or more send opportunity at least comprise time interval and the time started of service; Or at least comprise time started and end time.
In this technical scheme, send opportunity i.e. a time window, and each STA adopts identical or different time window, in different regions, carries out data communication with AP.By describing out time interval and the time started of service, or time started and end time, make to determine this send opportunity concrete corresponding time period, the AP then receiving this message frame can avoid within this time period, use the region that may produce interference exactly, and without the need to waiting for that this time period terminates to use other regions that can not produce interference to communicate simultaneously, thus contribute to the utilance and the region throughput that improve frequency spectrum.
In technique scheme, preferably, also comprise: according to delivering the cycle information comprised in transmission indicating information frame (DTIM), send described message frame.
In this technical scheme, with reference to the cycle information comprised in DTIM, the transmission to message frame can be realized.Particularly, the duration in above-mentioned cycle is 2
n× 100TU(Time Unit, chronomere), wherein, n be not more than 5 positive integer.
In technique scheme, preferably, also comprise: hold consultation with all recipients of described message frame, and using the clock of the designated communication side in the transmit leg of described message frame and described all recipients as reference clock, carry out time synchronized for other communication parties in described transmit leg and described recipient.
In this technical scheme, need between AP to carry out time synchronized, thus guarantee that the send opportunity that area identification in Effect-based operation frame is corresponding carries out processing and controlling.In a kind of situation, the mode that existing 802.11aa agreement can be adopted to specify is carried out synchronously; In another kind of situation, can hold consultation by between AP, and the clock therefrom selecting certain AP is as reference clock, the clock such as can giving tacit consent to certain AP is reference clock, or can send the clock of the AP of message frame as reference clock.
Fig. 7 shows the block diagram of Wireless Telecom Equipment according to an embodiment of the invention.
As shown in Figure 7, Wireless Telecom Equipment 700 according to an embodiment of the invention, comprise: data processing module 702, for generating messages frame, one or more area identification is at least comprised in described message frame, each described area identification corresponds to one or more send opportunity, and described one or more send opportunity is used for described Wireless Telecom Equipment 700 and performs data communication; Data interaction module 704, for sending message frame.
In this technical scheme, Wireless Telecom Equipment 700 can be AP, and data processing module 702 can be the chip module of data processing in Wireless Telecom Equipment 700, and data interaction module 704 is then equivalent to signal receiving/transmission device and antenna etc.For AP, after omnirange (360 °) corresponding for each AP is divided into multiple region, for each region arranges corresponding area identification, then when AP uses directional antenna, can only communicate in some or multiple region, other regions then do not communicate.By the mark of inclusion region in message frame, make to hold consultation to the service condition in region between AP, then for any two AP, the region simultaneously using possibility existence range to intersect can be avoided, thus avoid producing interference.Wherein, each area identification corresponds to one or more send opportunity (this one or more send opportunity can be included in message frame equally), the i.e. transmit leg of AP(message frame) can at this one or more send opportunity (TXOP, Transmission opportunity) in, region corresponding to this area identification (being assumed to region A) is used to communicate, make the AP receiving above-mentioned message frame within the time period that described one or more send opportunity is corresponding, avoid using the region may causing interference to region A, and without the need to waiting for that above-mentioned send opportunity terminates, contribute to the utilance and the region throughput that improve frequency spectrum.
In this technical scheme, the send opportunity that concrete same area identification can be corresponding different, namely uses same antenna to communicate within the different time periods; Different area identifications can corresponding same send opportunity, namely only otherwise form self-interference, can use different antennas to communicate at one time in section.
In technique scheme, preferably, described message frame is common action message frame or administrative messag frame.
In this technical scheme, message frame can be common action message frame or administrative messag frame, or also can be the message frame of other types, if such as this frame be common action message frame, it can be enhancement mode Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame; If this frame is management frames, it can be beacon frame (Beacon), in the frame with the form of information element (IEinformation Element) by area identification and send opportunity to broadcasting out.
In technique scheme, preferably, described common action message frame or administrative messag frame are Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame.
In this technical scheme, the subdomain of instruction send opportunity is included in Hybrid Coordination Function control channel access send opportunity notification message frame, then by the mark of Adding Area in this message frame, can make to be associated between send opportunity and region, guarantee that the multiple AP in OBSS carry out data communication in the interior region that can not produce interference that uses at one time, avoid producing interference.
In technique scheme, preferably, described one or more area identification comprises the frame head part of the media access control frame of described common action message frame or administrative messag frame or one or more positions of body section.
In this technical scheme, MAC(Medium Access Control can be utilized, media access control) frame head of frame or one or more reserved places of body section, place this area identification.
In technique scheme, preferably, described one or more area identification comprises the one or more positions in the order territory of the body section of described media access control frame.
In this technical scheme, when one or more reserved places of the body section adopting mac frame place this area identification, particularly, this reserved place can be arranged in the order territory of the body section of mac frame, such as can occur with the form of IE, be placed in certain order territory of frame.
In technique scheme, preferably, described data processing module 702 also for: by carrying out beamforming training with service terminal, determine described one or more area identification, described area identification be sector mark or polarizing angle mark.
In this technical scheme, when AP and one or more STA connects, and when communicating with this one or more STA, then this one or more STA is the service terminal of this AP.AP and STA can pass through beamforming training, obtains relative position relation between the two, thus determines the polarizing angle of sector residing for STA or correspondence, and obtains corresponding area identification.Particularly, such as when area identification is " 0000001 ", represent and correspond to " region 1 ", when area identification is " 0000010 ", represents and correspond to " region 2 ".
In technique scheme, preferably, described one or more send opportunity at least comprise time interval and the time started of service; Or at least comprise time started and end time.
In this technical scheme, send opportunity i.e. a time window, and each STA adopts identical or different time window, in different regions, carries out data communication with AP.By describing out time interval and the time started of service, or time started and end time, make to determine this send opportunity concrete corresponding time period, the AP then receiving this message frame can avoid within this time period, use the region that may produce interference exactly, and without the need to waiting for that this time period terminates to use other regions that can not produce interference to communicate simultaneously, thus contribute to the utilance and the region throughput that improve frequency spectrum.
In technique scheme, preferably, described data interaction module, according to delivering the cycle information comprised in transmission indicating information frame (DTIM), sends described message frame.
In this technical scheme, with reference to the cycle information comprised in DTIM, the transmission to message frame can be realized.Particularly, the duration in above-mentioned cycle is 2n × 100TU(Time Unit, chronomere), wherein, n be not more than 5 positive integer.
In technique scheme, preferably, described data interaction module 704 also for: hold consultation with all recipients of described message frame, and using the clock of the designated communication side in described Wireless Telecom Equipment 700 and described all recipients as reference clock, carry out time synchronized for other communication parties in described Wireless Telecom Equipment 700 and described recipient.
In this technical scheme, need between AP to carry out time synchronized, thus guarantee that the send opportunity that area identification in Effect-based operation frame is corresponding carries out processing and controlling.In a kind of situation, the mode that existing 802.11aa agreement can be adopted to specify is carried out synchronously; In another kind of situation, can hold consultation by between AP, and the clock therefrom selecting certain AP is as reference clock, the clock such as can giving tacit consent to certain AP is reference clock, or can send the clock of the AP of message frame as reference clock.
More than be described with reference to the accompanying drawings technical scheme of the present invention, consider in correlation technique, cannot realize avoiding the Communication Jamming under OBSS simultaneously and make full use of the communication resource, therefore, the invention provides a kind of wireless communications method and a kind of Wireless Telecom Equipment, can by the region used when communicating between access point with terminal and send opportunity be combined, make the region consulting between the multiple access points under OBSS to use, while avoiding producing interference, contribute to the utilance and the region throughput that improve frequency spectrum.
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 amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. a wireless communications method, is characterized in that, comprising:
Generating messages frame, comprises one or more area identification in described message frame, and each described area identification corresponds to one or more send opportunity, and the transmit leg that described one or more send opportunity is used for described message frame performs data communication;
Send described message frame.
2. wireless communications method according to claim 1, is characterized in that, also comprises:
Described message frame is common action message frame or administrative messag frame.
3. wireless communications method according to claim 2, is characterized in that, also comprises:
Described common action message frame or administrative messag frame are Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame.
4. wireless communications method according to claim 2, is characterized in that, also comprises:
Described one or more area identification comprises the frame head part of the media access control frame of described common action message frame or administrative messag frame or one or more positions of body section.
5. wireless communications method according to claim 4, is characterized in that, also comprises:
Described one or more area identification comprises the one or more positions in the order territory of the body section of described media access control frame.
6. wireless communications method according to claim 1, is characterized in that, also comprises:
By carrying out beamforming training with service terminal, determine described one or more area identification, described area identification is sector mark or polarizing angle mark.
7. wireless communications method according to claim 1, is characterized in that, also comprises:
Described one or more send opportunity at least comprise time interval and the time started of service;
Or at least comprise time started and end time.
8. wireless communications method according to any one of claim 1 to 7, is characterized in that, also comprises:
According to delivering the cycle information comprised in transmission indicating information frame, send described message frame.
9. wireless communications method according to any one of claim 1 to 7, is characterized in that, also comprises:
Hold consultation with all recipients of described message frame, and using the clock of the designated communication side in the transmit leg of described message frame and described all recipients as reference clock, carry out time synchronized for other communication parties in described transmit leg and described recipient.
10. a Wireless Telecom Equipment, is characterized in that, comprising:
Data processing module, for generating messages frame, comprise one or more area identification in described message frame, each described area identification corresponds to one or more send opportunity, and described one or more send opportunity is used for described Wireless Telecom Equipment and performs data communication;
Data interaction module, for sending message frame.
11. Wireless Telecom Equipments according to claim 10, is characterized in that, described message frame is common action message frame or administrative messag frame.
12. Wireless Telecom Equipments according to claim 11, is characterized in that, described common action message frame or administrative messag frame are Hybrid Coordination Function control channel access (HCCA) send opportunity notification message frame.
13. Wireless Telecom Equipments according to claim 11, is characterized in that, described one or more area identification comprises the frame head part of the media access control frame of described common action message frame or administrative messag frame or one or more positions of body section.
14. Wireless Telecom Equipments according to claim 13, is characterized in that, described one or more area identification comprises the one or more positions in the order territory of the body section of described media access control frame.
15. Wireless Telecom Equipments according to claim 10, is characterized in that, described data processing module also for:
By carrying out beamforming training with service terminal, determine described one or more area identification, described area identification is sector mark or polarizing angle mark.
16. Wireless Telecom Equipments according to claim 10, is characterized in that,
Described one or more send opportunity at least comprise time interval and the time started of service;
Or at least comprise time started and end time.
17., according to claim 10 to the Wireless Telecom Equipment according to any one of 16, is characterized in that, described data interaction module, according to delivering the cycle information comprised in transmission indicating information frame, sends described message frame.
18., according to claim 10 to the Wireless Telecom Equipment according to any one of 16, is characterized in that, described data interaction module also for:
Hold consultation with all recipients of described message frame, and using the clock of the designated communication side in described Wireless Telecom Equipment and described all recipients as reference clock, carry out time synchronized for other communication parties in described Wireless Telecom Equipment and described recipient.
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