CN102291802A - Communication method and device - Google Patents
Communication method and device Download PDFInfo
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- CN102291802A CN102291802A CN2011102294932A CN201110229493A CN102291802A CN 102291802 A CN102291802 A CN 102291802A CN 2011102294932 A CN2011102294932 A CN 2011102294932A CN 201110229493 A CN201110229493 A CN 201110229493A CN 102291802 A CN102291802 A CN 102291802A
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Abstract
The invention discloses a communication method and device. By adopting a TS (time slot)-based scheduling mode, a base station issues data by a beacon of periodic broadcast, mobile stations are completely not necessary to compete a channel, but utilize idle time slot numbers carried in the beacon to select an idle time slot while firstly receiving the beacon of the base station broadcast and then report the data to the base station; when receiving the beacon of the base station broadcast again, the mobile stations directly utilize the selected time slot to report the data to the base station, thus the probability of conflicts generated in each mobile station can be reduced and the communication delay between the mobile stations and the base station can be greatly shortened.
Description
It is on August 4th, 2011 that the application requires the applying date, and application number is 201110223123.8, and denomination of invention is the priority in first to file of communication means and equipment, should all embody in this application at the full content of first to file.
Technical field
The present invention relates to communication technical field, particularly communication means and equipment.
Background technology
In 802.11 agreements, adopt carrier sense multiple spot access/collision detection (CSMA/CA) mechanism to avoid conflict.Fig. 1 is the schematic diagram of CSMA/CA mechanism in the prior art.
As shown in Figure 1, mobile radio station A and mobile radio station C are all in the transmission range of base station B.Suppose that A will send data to B, realize as follows:
Step 1:A sends request transmit frame (RTS) to B, carries the length of the data that will send among the RTS.
Step 2:A receives the permission transmit frame (CTS) of B broadcasting, carries the length of the data that A will send among the CTS.
Step 3:A sends data to B.
If A and C will send data to B, then need competition, suppose RTS that B receives A earlier and send, and broadcasting at the CTS of this RTS, this moment, A and C can receive this CTS, beginning sent data to B after A received this CTS, C is known by this CTS that A is current and is competed successfully, will select the new time attempt once more sending RTS to B.
Above-mentioned CSMA/CA mechanism can produce than long time delay in some communication system, the normal operation of system produced have a strong impact on, and be that example illustrates this problem with bus communication for coordination technology below.
On the basis of 802.11 agreements, at the wireless LAN communication that reaches between the bus or train route between the car car 802.11p/1609 agreement has been proposed again specially, this WLAN (wireless local area network) is called bus communication for coordination technology net.In the 802.11p/1609 agreement, board units (OBU) is positioned on the vehicle, is equivalent to mobile radio station, and roadside unit (RSU) is equivalent to the base station.
In 802.11p/1609, defined control channel (CCH) and two kinds of channels of service channel (SCH), wherein SCH goes up transferring service data, restaurant information etc. for example, last control information transmission of CCH and security information are as accident information etc.
RSU and OBU will adopt the pattern with a kind of SCH and the alternate transmission of CCH, and the pattern of SCH for example shown in Figure 2 and the alternate transmission of CCH when all being in the SCH transmission intercal or all being in the CCH transmission intercal, can be carried out the communication in this transmission intercal.
In the CCH transmission intercal,, then need by the competition of CSMA/CA mechanism if a plurality of OBU need send security information to RSU.At the SCH transmission intercal,, also need by the competition of CSMA/CA mechanism if a plurality of OBU need send service data to RSU.This has produced following problem:
If certain OBU does not compete successfully always, the communication between this OBU and the RSU will produce than long time delay, and for transmission safety information and control information in the CCH transmission intercal, this time delay is flagrant.
Summary of the invention
In view of this, the purpose of this invention is to provide communication means and equipment, competitive channel when avoiding mobile radio station and base station communication, thus reduce the time delay brought by competitive channel greatly.
For there is a basic understanding some aspects to the embodiment that discloses, provided simple summary below.This summary part is not to comment general, neither determine the key/critical component or describe the protection range of these embodiment.Its sole purpose is to present some notions with simple form, with this preamble as the detailed description of back.
Technical scheme of the present invention is achieved in that
A kind of communication means, this method comprises:
The beacon of first mobile radio station listening period broadcasting, the identity positional information, current broadcast of carrying the base station of this beacon of broadcasting in the described beacon in the cycle idle time-gap number and issue data;
When listening to first beacon of first base station broadcast first, first mobile radio station is selected first time slot according to the idle time-gap number in first beacon, and carries the answer response of self identity positional information and reported data in the broadcasting of first time slot;
When listening to first beacon once more, first mobile radio station is directly broadcasted described answer response at first time slot.
Optionally, after described first beacon that listens to first base station broadcast first, when in setting-up time, not listening to first beacon and do not hear second beacon of second base station broadcast, first mobile radio station sends to the second contiguous mobile radio station at first time slot with described answer response, is transmitted to first base station by second mobile radio station at first time slot.
Optionally, the identity positional information of carrying during all answers that first mobile radio station receives by parsing respond is selected second mobile radio station that is positioned at first base station range.
Optionally, described after first time slot sends to the second contiguous mobile radio station with described answer response, first mobile radio station receives first beacon of first base station broadcast of being transmitted by second mobile radio station at first time slot.
Optionally, it is described after first time slot sends to the second contiguous mobile radio station with described answer response, when listening to second beacon of second base station broadcast first, first mobile radio station is selected second time slot according to the idle time-gap number in second beacon and is broadcasted described answer response, and stops at first time slot described answer response is sent to second mobile radio station; When listening to second beacon once more, first mobile radio station is directly broadcasted described answer response at second time slot.
Optionally, during described second beacon that listens to second base station broadcast first, first mobile radio station further sends to second mobile radio station at first time slot and finishes indication information, is transmitted to first base station by second mobile radio station at first time slot.
Optionally, it is described after first time slot sends to the second contiguous mobile radio station with described answer response, the identity positional information judgement in the answer response of broadcasting by second mobile radio station and second mobile radio station are at a distance of above setting threshold the time, and first mobile radio station stops at first time slot described answer response is sent to second mobile radio station.
Optionally, described listening to first after first beacon, when listening to second beacon of second base station broadcast first, first mobile radio station is selected second time slot and is broadcasted described answer response according to the idle time-gap number in second beacon; When listening to second beacon once more, first mobile radio station is directly broadcasted described answer response at second time slot.
Optionally, during described second beacon that listens to second base station broadcast first, first mobile radio station stops at first time slot and broadcasts described answer response.
Optionally, during described second beacon that listens to second base station broadcast first, first mobile radio station further sends to first base station at first time slot and finishes indication information.
Optionally, described listening to first after first beacon, when listening to second beacon of second base station broadcast first, first mobile radio station starts the intermittent scanning of the RSSI of intensity indication to received signal;
As the RSSI of second base station during greater than the RSSI of first base station, first mobile radio station is according to the idle time-gap number in second beacon, selects second time slot and broadcasts described answer response, stops at first time slot and broadcast described answer response and stop described intermittent scanning; When listening to second beacon once more, first mobile radio station is directly broadcasted described answer response at second time slot;
As the RSSI of first base station during greater than the RSSI of second base station, first mobile radio station remains on first time slot and broadcasts described answer response.
Optionally, the RSSI of described second base station is during greater than the RSSI of first base station, and first mobile radio station further sends to first base station at first time slot and finishes indication information.
Optionally, first mobile radio station also carries the identity positional information of first base station in the answer response of first time slot broadcasting;
First mobile radio station also carries the identity positional information of second base station in the answer response of second time slot broadcasting.
Optionally, when the time slot of replying response in broadcasting listened to the conflict indication information, first mobile radio station was reselected the time slot that response is replied in broadcasting.
A kind of communication means, this method comprises: base station periodic broadcasting beacon, the identity positional information, current broadcast of carrying self in the described beacon in the cycle idle time-gap number and issue data;
The answer response of mobile radio station broadcasting is monitored in the base station, the identity positional information and the reported data of carrying mobile radio station in the described answer response;
When numbering time slot corresponding in crack listened to the answer response at one's leisure, deleted this time slot the base station from idle time-gap number.
Optionally, it is characterized in that, also comprise:
When the time slot that listens to the answer response listens to the end indication information, the base station adds this time slot in the idle time-gap number.
Optionally, also comprise:
When not listening to once more when replying response listening to the time slot of replying response, base station initiated timer does not still listen to and replys response if described timer reaches behind the timing thresholding base station, and this time slot is added in the idle time-gap number.
Optionally, when numbering time slot corresponding in crack listens to the answer response of two mobile radio station broadcasting at one's leisure, send the conflict indication information to these two mobile radio stations at this time slot.
A kind of mobile radio station, this mobile radio station comprises:
Monitoring device is used for the beacon of listening period broadcasting, the identity positional information, current broadcast of carrying the base station of this beacon of broadcasting in the described beacon in the cycle idle time-gap number and issue data;
Time slot selection device triggers when listening to first beacon of first base station broadcast first by described monitoring device, is used for selecting first time slot according to the idle time-gap number of first beacon;
Reply the response broadcaster, be used for carrying the answer response of self identity positional information and reported data in the broadcasting of first time slot.
Optionally, described answer response broadcaster comprises:
The broadcasting performance element is used for broadcasting described answer response at first time slot;
First retransmission unit does not trigger when being listened to first beacon and do not heard second beacon of second base station broadcast in setting-up time by described monitoring device, is used for sending described answer response at first time slot to other contiguous mobile radio stations;
Second retransmission unit is used to receive the answer response that other contiguous mobile radio stations send, and is transmitted to first base station at the time slot that receives the answer response.
Optionally, described answer response broadcaster also comprises:
Resolution unit is used for resolving all answers that receive and responds the identity positional information of carrying, and selects other mobile radio stations of the described vicinity that is positioned at first base station range.
Optionally, described first retransmission unit is further used for first beacon at first base station broadcast of other contiguous mobile radio stations forwardings of first time slot reception;
Described second retransmission unit is further used at the time slot of receive replying response, and first beacon of first base station broadcast is transmitted to other contiguous mobile radio stations.
Optionally, described time slot selection device triggers when further listening to second beacon of the second base station periodic broadcasting first by described monitoring device, according to the idle time-gap number in second beacon, selects second time slot;
Described broadcasting performance element is further used for broadcasting described answer response at second time slot;
Described first retransmission unit triggers when further listening to second beacon by described monitoring device, stops at first time slot and sends described answer response to other contiguous mobile radio stations.
Optionally, also comprise in the described answer response broadcaster:
Finish the indication transmitting element, trigger when listening to second beacon first, be used for sending the end indication information to other contiguous mobile radio stations at first time slot by described monitoring device;
The 3rd retransmission unit is used to receive the end indication information that other contiguous mobile radio stations send, and is transmitted to first base station at the time slot that receives the end indication information.
Optionally, also comprise in the described answer response broadcaster: the range estimation unit, the identity positional information that is used for the answer response by adjacent other mobile radio stations broadcasting judge with other adjacent mobile radio stations when surpassing setting threshold, trigger described first retransmission unit and stop at first time slot described answer response is sent to other adjacent mobile radio stations.
Optionally, described time slot selection device triggers when further listening to second beacon of the second base station periodic broadcasting first by described monitoring device, according to the idle time-gap number in second beacon, selects second time slot;
Described answer response broadcaster is further used for broadcasting described answer response at second time slot.
Optionally, described answer response broadcaster triggers when further listening to second beacon first by described monitoring device, stops at first time slot and broadcasts described answer response.
Optionally, this mobile radio station also comprises: finish the indication dispensing device, trigger when listening to second beacon of second base station broadcast first by described monitoring device, be used for sending to first base station at first time slot and finish indication information.
Optionally, this mobile radio station also comprises:
Scanning means triggers when listening to second beacon of second base station broadcast first by described monitoring device, is used for the RSSI of intermittent scanning first base station and second base station, and during greater than the RSSI of first base station, stops described scanning at the RSSI of second base station;
Described time slot selection device triggers when further listening to second beacon first by described monitoring device, according to the idle time-gap number in second beacon, selects second time slot;
Described answer response broadcaster, the RSSI that is further used in second base station are broadcasted described answer response at second time slot during greater than the RSSI of first base station, and stop at first time slot and broadcast described answer response.
Optionally, this mobile radio station also comprises: finish the indication dispensing device, be used at the RSSI of second base station during greater than the RSSI of first base station, send to first base station at first time slot and finish indication information.
Optionally, described time slot selection device is further replied in broadcasting by described monitoring device and is triggered when the time slot that responds listens to the conflict indication information, reselects the time slot that response is replied in broadcasting.
A kind of base station, this base station comprises:
Broadcaster is used for the periodic broadcasting beacon, the identity positional information, current broadcast of carrying self in the described beacon in the cycle idle time-gap number and issue data;
Monitoring device is used to monitor the answer response that mobile radio station is broadcasted, the identity positional information and the reported data of carrying mobile radio station in the described answer response;
Updating device is triggered when numbering time slot corresponding in crack listens to the answer response at one's leisure by described monitoring device, is used for deleting from idle time-gap number listening to the time slot of replying response.
Optionally, described updating device is further triggered when the time slot of monitoring the answer response listens to the end indication information by described monitoring device, adds in the idle time-gap number listening to the time slot that finishes indication information.
Optionally, also comprise timer in this base station, when the time slot of monitoring the answer response listens to the answer response once more, do not start by described monitoring device;
Described updating device was not further triggered when the time slot of replying response listens to the answer response described the monitoring after described timer reaches the timing thresholding yet by described monitoring device, this had been monitored the time slot of replying response added in the idle time-gap number.
Optionally, also comprise in this base station: the conflict indicating device, trigger when numbering time slot corresponding in crack listens to the answer response of two mobile radio stations broadcasting at one's leisure by described monitoring device, be used for sending the conflict indication informations to these two mobile radio stations at this time slot.
For above-mentioned and relevant purpose, one or more embodiment comprise the feature that the back will describe in detail and particularly point out in the claims.Below explanation and accompanying drawing describe some illustrative aspects in detail, and its indication only is some modes in the utilizable variety of way of principle of each embodiment.Other benefit and novel features will consider in conjunction with the accompanying drawings and become obviously along with following detailed description, and the disclosed embodiments are to comprise being equal to of all these aspects and they.
Figure of description
Fig. 1 is the schematic diagram of CSMA/CA mechanism in the prior art;
Fig. 2 is the pattern diagram of a kind of SCH and the alternate transmission of CCH in the prior art;
Fig. 3 is the flow chart of communication means of the present invention;
Fig. 4 is the time slot allocation schematic diagram in the embodiment of the invention communication means;
Fig. 5 is the schematic diagram that time slot keeps in the embodiment of the invention communication means;
Fig. 6 is that the time slot in the embodiment of the invention communication means switches schematic diagram;
Fig. 7 is the structural representation of mobile radio station of the present invention;
Fig. 8 is the structural representation of first kind of OBU of the embodiment of the invention;
Fig. 9 is the structural representation of second kind of OBU of the embodiment of the invention;
Figure 10 is the structural representation of the third OBU of the embodiment of the invention;
Figure 11 is the structural representation of base station of the present invention;
Figure 12 is the structural representation of embodiment of the invention RSU.
Embodiment
The following description and drawings illustrate specific embodiments of the present invention fully, to enable those skilled in the art to put into practice them.Other embodiments can comprise structure, logic, electric, process and other change.Embodiment only represents possible variation.Unless explicitly call for, otherwise independent assembly and function are optionally, and the order of operation can change.The part of some embodiments and feature can be included in or replace the part and the feature of other embodiments.The scope of embodiment of the present invention comprises the gamut of claims, and all obtainable equivalents of claims.In this article, these embodiments of the present invention can be represented with term " invention " individually or always, this only is for convenience, and if in fact disclose and surpass one invention, not that the scope that will automatically limit this application is any single invention or inventive concept.
Fig. 3 is the flow chart of communication means of the present invention, and this method comprises:
Step 31: the beacon of mobile radio station listening period broadcasting, the identity positional information, current broadcast of carrying the base station of this beacon of broadcasting in this beacon in the cycle idle time-gap number and issue data.
Step 32: when listening to the beacon of a base station broadcast first, mobile radio station is selected a time slot according to the idle time-gap number in this beacon, and carries the answer response of self identity positional information and reported data in the time slot broadcasting of selecting.
Step 33: when listening to the beacon of above-mentioned base station broadcast once more, mobile radio station is directly broadcasted above-mentioned answer response at the time slot of selecting.
As seen, communication means provided by the invention, adopted timeslot-based scheduling mode, the base station issues data by the beacon of periodic broadcasting, mobile radio station then need not competitive channel fully, but when receiving the beacon of base station broadcast first, utilize the idle time-gap number that carries in the beacon to select the time slot of a free time to the base station reported data, when receiving the beacon of base station broadcast once more, directly utilize the time slot of selecting to the base station reported data, so not only reduce each mobile radio station and produced the probability of conflict, also shortened the communication delay of mobile radio station and base station greatly.
Provide the optional embodiment of the inventive method below, with bus communication for coordination system as concrete application scenarios.
Based on bus communication for coordination system, the communication means that the present invention proposes can only use at the CCH transmission intercal, also can use at CCH transmission intercal and SCH transmission intercal simultaneously, decides according to the demand of application scenarios.
If this method is only used at the CCH transmission intercal, the broadcast cycle of RSU broadcast beacon then is set at the CCH transmission intercal, and time slot position and numbering in this broadcast cycle are set.
If this method is used at CCH transmission intercal and SCH transmission intercal simultaneously, the broadcast cycle of RSU broadcast beacon then further is set at the SCH transmission intercal, and time slot position and numbering in this broadcast cycle are set.
Because it is little and delay requirement is high that the data of CCH transmission intercal transmission have data volume, therefore method of the present invention is applied in the CCH transmission intercal, will make the in time mutual safety of OBU and RSU, control the higher information of isopreference level.
For the SCH transmission intercal, transmission be the bigger service data of data volume, if not high to the transfer of data rate requirement, only mutual short text message between OBU and the RSU for example, can use method of the present invention, make the timely interactive service data of OBU and RSU.For the higher application scenarios of those speed rates rate requirement, interactive video data between OBU and the RSU for example, the SCH transmission intercal still can use CSMA/CA mechanism, because the service data of this moment to time delay and insensitive, only has higher requirements to message transmission rate.
Following object lesson all uses the inventive method, SCH transmission intercal still to use CSMA/CA mechanism to be example with the CCH transmission intercal.
Fig. 4 is the time slot allocation schematic diagram in the embodiment of the invention communication means, wherein OBU(A) and OBU(B) all at RSU(S) coverage in, and OBU(A) sail this coverage earlier into, sail this coverage into after OBU(B).
RSU(S) begin periodic broadcasting beacon (Beacon) constantly from t1, carry RSU(S in the beacon) identity positional information, current broadcast in the cycle idle time-gap number and issue data, wherein issue data and can comprise emergency message, fault message etc.RSU(S) broadcast cycle is T.
OBU(A) listen to RSU(S) behind the beacon that t1 broadcasts constantly, according to the idle time-gap number that wherein carries, select time slot 1 broadcasting to reply response at random, time slot 1 is positioned at X+t1 constantly in first broadcast cycle, be positioned at X+T+t1 constantly second broadcast cycle, by that analogy.Carry OBU(A in the above-mentioned answer response) identity positional information and reported data, wherein reported data can comprise vehicle condition information and emergency message etc.
RSU(S) receive OBU(A) after the answer response of time slot 1 broadcasting, time slot 1 is deleted from idle time-gap number.
Follow-up OBU(A) whenever receive RSU(S one time) beacon of broadcasting, just directly reply response in time slot 1 broadcasting.
OBU(B) listen to RSU(S) behind the beacon that T+t1 broadcasts constantly, according to the idle time-gap number that wherein carries, select time slot 2 broadcasting to reply response at random, time slot 2 is positioned at Y+t1 constantly in first broadcast cycle, be positioned at Y+T+t1 constantly second broadcast cycle, by that analogy.Carry OBU(B in the above-mentioned answer response) identity positional information and reported data, wherein reported data can comprise vehicle condition information and emergency message etc.
RSU(S) receive OBU(B) after the answer response of time slot 2 broadcasting, time slot 2 is deleted from idle time-gap number.
Follow-up OBU(B) whenever receive RSU(S one time) beacon of broadcasting, just directly reply response in time slot 2 broadcasting.
Because OBU(A) and OBU(B) all be to select time slot at random, so the probability that clashes is very little.
Consider a kind of special situation, i.e. OBU(B) reply response by also having selected time slot 1 broadcasting after selecting at random.Because OBU(A) and OBU(B) to RSU(S) distance can be not identical, even therefore all selected time slot 1, RSU(S) also can successively receive OBU(A) and OBU(B) the answer response of broadcasting.According to replying the identity positional information of carrying in the response, RSU(S) will be at time slot 1 to OBU(A) and OBU(B) send conflict indication information, indication OBU(A) and OBU(B) reselect time slot broadcasting and reply response.OBU(A) and OBU(B) after receiving the conflict indication information, will listen to RSU(S next time) during the beacon of broadcasting, select time slot broadcasting to reply response again at random.Here be with RSU(S) be that example illustrates contingent conflict situations, OBU inserts other RSU when this conflict situations also takes place, and all can handle in this way, hereinafter will repeat no more.
On the basis of scene shown in Figure 4, along with moving of each OBU, OBU may occur and roll RSU(S away from) situation of coverage, suppose RSU(S) coverage and the coverage of other RSU do not have the overlapping region, will be referred to guarantee the problem of the continuity of the OBU that rolls away from.
Fig. 5 is the schematic diagram that time slot keeps in the embodiment of the invention communication means.
OBU(B) in setting-up time, never listen to RSU(S) beacon of broadcasting, then think and rolled RSU(S away from) coverage owing to also do not hear the beacon of new RSU broadcasting this moment, so OBU(B) coverage that also do not enter new RSU.
Because the answer of each OBU response all sends by the mode of broadcasting, so OBU(B) still can receive contiguous OBU(A) in the answer response of time slot 1 broadcasting.
OBU(B) according to the OBU(A that receives) identity positional information in the answer response that sends, at time slot 2 oneself answer response is sent to OBU(A), OBU(A) will be at time slot 2 with OBU(B) the answer response that sends is transmitted to RSU(S), OBU(A) also with RSU(S) beacon of broadcasting is transmitted to OBU(B at time slot 2).OBU(A) still respond in the own answer of time slot 1 broadcasting.
In case OBU(B) listened to the beacon of new RSU broadcasting, will select a time slot to communicate by letter after the same method at random with new RSU.
OBU(B) can promptly stop at time slot 2 to OBU(A with after new RSU communicates by letter) send the broadcasting response, corresponding, OBU(A) can be at time slot 2 to RSU(S yet) transmit OBU(B) the broadcasting response.As RSU(S) in setting-up time, do not receive OBU(B) the broadcasting response time, RSU(S) time slot 2 can be added in the idle time-gap number again.
OBU(B) can also be with after new RSU communicates by letter, at time slot 2 to OBU(A) send and finish indication information (MESSAGE END), by OBU(A) should finish indication information at time slot 2 and be transmitted to RSU(S).As RSU(S) receive this end indication information after, time slot 2 is added in the idle time-gap number again.Be convenient to RSU(S like this) in time reclaim time slot, use for other OBU.
Consider a kind of special circumstances, be OBU(B) moved the beacon that does not still hear new RSU broadcasting behind the segment distance, and this moment OBU(B) by receiving OBU(A) respond, know OBU(A in the answer of time slot 1 broadcasting) the position, determine own apart from OBU(A) above setting threshold (for example 100 meters), this moment OBU(B) can select no longer at time slot 2 to OBU(A) send own answer and respond, to alleviate OBU(A) burden.
Application scenarios shown in Figure 5 is a kind of comparatively simple situation, in fact, OBU(A) can also be at other time slots to RSU(S) the answer response of transmitting other OBU.
On scene shown in Figure 4 basis, along with moving of each OBU, the situation that OBU enters two RSU superimposed coverage area may appear, and this will be referred to OBU and how to carry out the problem that time slot switches.
Fig. 6 is that the time slot in the embodiment of the invention communication means switches schematic diagram.
Suppose OBU(A) moved to RSU(S) and the RSU(M) overlapping region of coverage.
OBU(A) except continuing to listen to RSU(S) the beacon of periodic broadcasting, also will listen to RSU(M) from the t2 beacon of periodic broadcasting constantly, carry RSU(M in this beacon) identity positional information, the idle time-gap number in broadcast cycle and issue data.
First kind of processing mode OBU(A) can be according to RSU(M) idle time-gap number in the beacon of broadcasting, select to be positioned at Z+t2 time slot 3 broadcasting constantly and reply response.OBU(A) still reply response in time slot 1 broadcasting.
Second kind of processing mode, OBU(A) can be according to RSU(M) idle time-gap number in the beacon of broadcasting, selection is positioned at Z+t2 time slot 3 broadcasting constantly and replys response, and stop at time slot 1 broadcasting and reply response, as RSU(S) in setting-up time, do not hear OBU(A) during the answer response of broadcasting, time slot 1 can be added in the idle time-gap number again.OBU(A) also can be at time slot 1 off-the-air indication information (MESSAGE END), as RSU(S) receive this end indication information after, time slot 1 is added in the idle time-gap number again.
The third processing mode OBU(A) is listening to RSU(M) behind the beacon of broadcasting, can the enabling signal receiving intensity intermittent scanning of indication (RSSI), thereby determine better quality of signal RSU.If RSSI RSU(S) is bigger, then OBU(A) reply response with continuing to remain on time slot 1 broadcasting.If RSSI RSU(M) is bigger, OBU(A then) will be according to RSU(M) idle time-gap number in the beacon of broadcasting, selection is positioned at time slot 3 broadcasting in the Z+t2 moment and replys response, stops at time slot 1 broadcasting answer response and stop scan operation, as RSU(S) in setting-up time, do not hear OBU(A) during the answer response of broadcasting, time slot 1 can be added in the idle time-gap number again.OBU(A) also can be at RSU(M) RSSI when big, at time slot 1 off-the-air indication information (MESSAGE END), RSU(S) when time slot 1 is received this end indication information, time slot 1 is added in the idle time-gap number again.
It no matter is any processing mode in above-mentioned three kinds, as long as OBU(A) be in RSU(S) and the overlapping region of coverage RSU(M), RSU(S) and RSU(M) just can listen to OBU(A) the answer response of broadcasting, this moment OBU(A) can also further carry RSU(S in the answer response of broadcasting) or identity positional information RSU(M).For example, in first kind of processing mode, OBU(A) in the answer response of time slot 1 broadcasting, carry RSU(S) the identity positional information, OBU(A) in the answer response of time slot 3 broadcasting, carry RSU(M) the identity positional information, even RSU(S like this) also listened to OBU(A at time slot 3) the answer response of broadcasting, but because that carry in this answers response is RSU(M) the identity positional information, so RSU(S) can ignore this answer and respond.Same, even RSU(M) also listened to OBU(A at time slot 1) the answer response of broadcasting, but because that carry in this answers response is RSU(S) the identity positional information, so RSU(M) can ignore this answer and respond.
Fig. 7 is the structural representation of mobile radio station of the present invention, and this mobile radio station comprises: monitoring device 71, time slot selection device 72 and answer response broadcaster 73.
Described monitoring device 71 is used for the beacon of listening period broadcasting, the identity positional information, current broadcast of carrying the base station of this beacon of broadcasting in this beacon in the cycle idle time-gap number and issue data.
Described time slot selection device 72 triggers when listening to first beacon of first base station broadcast first by monitoring device 71, is used for selecting first time slot according to the idle time-gap number of first beacon.
Described answer response broadcaster 73 is used for carrying in the broadcasting of first time slot answer response of self identity positional information and reported data.
Be application scenarios with bus communication for coordination system below, enumerate the optional embodiment of mobile radio station of the present invention, in the description of these optional embodiment, directly mobile radio station is called OBU, the base station is called RSU.
As first kind of optional embodiment, when OBU can and not enter the coverage of new RSU in the coverage of leaving a RSU, transmit to keep and the communicating by letter an of RSU by the car car.Fig. 8 is the structural representation of first kind of OBU of the embodiment of the invention, and this OBU comprises: monitoring device 81, time slot selection device 82 and answer response broadcaster 83.
Described monitoring device 81 is used for the beacon of listening period broadcasting, the identity positional information, current broadcast of carrying the RSU of this beacon of broadcasting in this beacon in the cycle idle time-gap number and issue data.
Described time slot selection device 82 triggers when listening to first beacon of RSU broadcasting first by monitoring device 81, is used for selecting first time slot according to the idle time-gap number of first beacon; Trigger when listening to second beacon of the 2nd RSU broadcasting first,, select second time slot according to the idle time-gap number in second beacon by monitoring device 81.
Described time slot selection device 82 can also further be replied in broadcasting by monitoring device 81 and be triggered when the time slot that responds listens to the conflict indication information, reselects the time slot that response is replied in broadcasting.
Described answer response broadcaster 83 comprises: broadcasting performance element 801, first retransmission unit 802 and resolution unit 807.
Described broadcasting performance element 801 is used for carrying in the broadcasting of first time slot answer response of self identity positional information and reported data; Carry the answer response of self identity positional information and reported data in the broadcasting of second time slot.
Described first retransmission unit 802 does not trigger when listening to first beacon by monitoring device 81 in setting-up time, is used for sending described answer response at first time slot to other contiguous OBU; Trigger when listening to second beacon, stop at first time slot and send a reply response to other contiguous OBU by monitoring device 81; Receive first beacon of the RSU broadcasting of other contiguous OBU forwardings at first time slot.
Described second retransmission unit 803 is used to receive the answer response that other contiguous OBU send, and is transmitted to a RSU at the time slot that receives the answer response; Receiving the time slot of replying response, first beacon that a RSU is broadcasted is transmitted to other contiguous OBU.
Described resolution unit 807 is used for resolving all answers that receive and responds the identity positional information of carrying, and selects other OBU of the vicinity that is positioned at a RSU coverage.
For RSU can in time reclaim time slot, can also comprise in the described answer response broadcaster 83: finish indication transmitting element 804 and the 3rd retransmission unit 805.
Described end indication transmitting element 804 triggers when listening to second beacon first by monitoring device 81, is used for sending the end indication information at first time slot to other contiguous OBU.
Described the 3rd retransmission unit 805 is used to receive the end indication information that other contiguous OBU send, and is transmitted to a RSU at the time slot that receives the end indication information.
Excessive for fear of OBU forwarding load, can also comprise in the described answer response broadcaster 83: range estimation unit 806, the identity positional information that is used for the answer response by other contiguous OBU broadcasting judge with other contiguous OBU when surpassing setting threshold, trigger first retransmission unit 802 and stop at first time slot described answer response is sent to other contiguous OBU.
As second kind of optional embodiment, OBU can carry out time slot and switch when listening to the beacon of two RSU broadcasting.Fig. 9 is the structural representation of second kind of OBU of the embodiment of the invention, and this OBU comprises: monitoring device 91, time slot selection device 92 and answer response broadcaster 93.
Described monitoring device 91 is used for the beacon of listening period broadcasting, the identity positional information, current broadcast of carrying the RSU of this beacon of broadcasting in this beacon in the cycle idle time-gap number and issue data.
Described time slot selection device 92 triggers when listening to first beacon of RSU broadcasting first by monitoring device 91, is used for selecting first time slot according to the idle time-gap number of first beacon; Trigger when listening to second beacon of the 2nd RSU periodic broadcasting first,, select second time slot according to the idle time-gap number in second beacon by monitoring device 91.
Described time slot selection device 92 can further be replied in broadcasting by monitoring device 91 and be triggered when the time slot that responds listens to the conflict indication information, reselects the time slot that response is replied in broadcasting.
Described answer response broadcaster 93 is used for carrying in the broadcasting of first time slot answer response of self identity positional information and reported data; Carry the answer response of self identity positional information and reported data in the broadcasting of second time slot.
If OBU only replys response to the RSU broadcasting that newly listens to, described answer response broadcaster 93 triggers when further listening to second beacon first by monitoring device 91, stops at the broadcasting of first time slot and replys response.
If OBU only replys response and can in time reclaim time slot for RSU to the RSU broadcasting that newly listens to, can also comprise among the OBU shown in Figure 9: finish indication dispensing device 94, trigger when listening to second beacon of the 2nd RSU broadcasting first, be used for sending to a RSU and finish indication information at first time slot by monitoring device 91.
As the third optional embodiment, OBU can carry out time slot and switch when listening to the beacon of two RSU broadcasting.Figure 10 is the structural representation of the third OBU of the embodiment of the invention, comprises among this OBU: monitoring device 101, time slot selection device 102, answer response broadcaster 103 and scanning means 104.
Described monitoring device 101 is used for the beacon of listening period broadcasting, the identity positional information, current broadcast of carrying the RSU of this beacon of broadcasting in this beacon in the cycle idle time-gap number and issue data.
Described time slot selection device 102 triggers when listening to first beacon of RSU broadcasting first by monitoring device 101, is used for selecting first time slot according to the idle time-gap number of first beacon; Trigger when listening to second beacon of the 2nd RSU periodic broadcasting first,, select second time slot according to the idle time-gap number in second beacon by monitoring device 101.
Described answer response broadcaster 103 is used for carrying in the broadcasting of first time slot answer response of self identity positional information and reported data; During greater than the RSSI of a RSU, broadcast described answer response at the RSSI of the 2nd RSU, and stop at the broadcasting of first time slot and reply response at second time slot.
Described scanning means 104 triggers when listening to second beacon of the 2nd RSU broadcasting first by monitoring device 101, is used for the RSSI of intermittent scanning the one RSU and the 2nd RSU; As the RSSI of the 2nd RSU during, stop scanning greater than the RSSI of a RSU.
For RSU can in time reclaim time slot, can also comprise among the OBU shown in Figure 10 and finish indication dispensing device 105, be used at the RSSI of the 2nd RSU during greater than the RSSI of a RSU, send to a RSU at first time slot and finish indication information.
Described time slot selection device 102 can further be replied in broadcasting by monitoring device 101 and be triggered when the time slot that responds listens to the conflict indication information, reselects the time slot that response is replied in broadcasting.
Figure 11 is the structural representation of base station among the present invention, and this base station comprises: broadcaster 111, monitoring device 112 and updating device 113.
Described broadcaster 111 is used for the periodic broadcasting beacon, the identity positional information, current broadcast of carrying self in this beacon in the cycle idle time-gap number and issue data.
Described monitoring device 112 is used to monitor the answer response that mobile radio station is broadcasted, the identity positional information and the reported data of carrying mobile radio station in this answer response.
Described updating device 113 is triggered when numbering time slot corresponding in crack listens to the answer response at one's leisure by monitoring device 112, is used for deleting from idle time-gap number listening to the time slot of replying response.
Be application scenarios with bus communication for coordination system below, enumerate the optional embodiment of base station of the present invention, in the description of following optional embodiment, directly mobile radio station is called OBU, the base station is called RSU.
Figure 12 is the structural representation of embodiment of the invention RSU, and this RSU comprises: broadcaster 121, monitoring device 122, updating device 123, timer 124 and conflict indicating device 125.
Described broadcaster 121 is used for the periodic broadcasting beacon, the identity positional information, current broadcast of carrying self in this beacon in the cycle idle time-gap number and issue data.
Described monitoring device 122 is used to monitor the answer response that OBU broadcasts, the identity positional information and the reported data of carrying OBU in this answer response.
Described updating device 123 is triggered when numbering time slot corresponding in crack listens to the answer response at one's leisure by monitoring device 122, is used for deleting from idle time-gap number listening to the time slot of replying response; Trigger when the time slot of monitoring the answer response listens to the end indication information by monitoring device 122, be used for to listen to the time slot that finishes indication information and add idle time-gap number; When the time slot of monitoring the answer response listens to the answer response, do not trigger yet after timer 124 reaches the timing thresholding by monitoring device 122, this time slot of having monitored the answer response is added in the idle time-gap number.
Described timer 124 is not started when the time slot of monitoring the answer response listens to the answer response once more by monitoring device 122.
Described conflict indicating device 125 is triggered when numbering time slot corresponding in crack listens to the answer response of two OBU broadcasting at one's leisure by described monitoring device 122, is used for sending the conflict indication informations at this time slot to these two OBU.
Unless otherwise specific statement, term such as processing, calculating, computing, determine, show or the like that the action and/or the process that can refer to one or more processing or computing system or similar devices, described action and/or process will be expressed as the data manipulation of the register of treatment system or the amount of the physics (as electronics) in the memory and be converted into other data of the interior physical quantity of the memory, register or other this type of information storages, emission or the display device that are expressed as treatment system similarly.Information can be used multiple different technology and any expression the in the method with signal.For example, data, instruction, order, information, signal, bit, symbol and the chip of mentioning in the description on run through can be represented with voltage, electric current, electromagnetic wave, magnetic field or particle, light field or particle or its combination in any.
Should be understood that the particular order of the step in the disclosed process or the example that level is illustrative methods.Based on design preference, should be appreciated that the particular order of the step in the process or level can be rearranged under the situation that does not break away from protection range of the present disclosure.Appended claim to a method has provided the key element of various steps with exemplary order, and is not to be limited to described particular order or level.
In above-mentioned detailed description, various features are combined in the single embodiment together, to simplify the disclosure.This open method should be interpreted as reflecting such intention, that is, the embodiment of theme required for protection need be than the more feature of clearly being stated in each claim of feature.On the contrary, as appending claims reflected, the present invention was in the state that lacks than whole features of disclosed single embodiment.Therefore, appending claims clearly is merged in the detailed description hereby, and wherein every claim is alone as the independent preferred embodiment of the present invention.
Those skilled in the art it is also understood that various illustrative box, module, circuit and the algorithm steps in conjunction with the embodiment description of this paper all can be embodied as electronic hardware, computer software or its combination.For the interchangeability between the hardware and software clearly is described, above various illustrative parts, frame, module, circuit and step have all been carried out usually describing around its function.Be embodied as hardware or be embodied as software as for this function, depend on specific application and design constraint that whole system applied.Those skilled in the art can be at each application-specific, realizes described function in the mode of accommodation, and still, this realization decision-making should not be construed as and deviates from protection range of the present disclosure.
Be used to carry out general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components or its combination in any of the described function of the application, can realize or carry out in conjunction with the described various illustrative logic diagrams of the embodiment of this paper, module and circuit.General processor can be a microprocessor, and perhaps, this processor also can be processor, controller, microcontroller or the state machine of any routine.Processor also may be embodied as the combination of computing equipment, and for example, the combination of DSP and microprocessor, a plurality of microprocessor, one or more microprocessor combine with the DSP kernel, perhaps any other this kind structure.
Software module or its combination that can directly be presented as hardware, carry out by processor in conjunction with the step of described method of the embodiment of this paper or algorithm.Software module can be arranged in the storage medium of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, mobile disk, CD-ROM or any other form well known in the art.A kind of exemplary storage medium is connected to processor, thereby makes the processor can be from this read information, and can be to this storage medium writing information.Certainly, storage medium also can be the part of processor.Processor and storage medium can be arranged in ASIC.This ASIC can be arranged in user terminal.Certainly, processor and storage medium also can be used as discrete assembly and are present in the user terminal.
For making any technical staff in this area realize or to use the present invention, above disclosed embodiment is described.To those skilled in the art; The various alter modes of these embodiment all are conspicuous, and the General Principle of this paper definition also can be applicable to other embodiment on the basis that does not break away from spirit of the present disclosure and protection range.Therefore, the disclosure is not limited to the embodiment that this paper provides, but consistent with the widest scope of disclosed principle of the application and novel features.
Realize that for software the technology of describing among the application can realize with the module (for example, process, function etc.) of carrying out the described function of the application.These software codes can be stored in memory cell and be carried out by processor.Memory cell can be implemented in the processor, also can be implemented in outside the processor, and under latter event, it is coupled to processor via various means with communication mode, and these all are well known in the art.
And various aspects as herein described or feature can be used as the programming of use standard and/or method, device or the goods of engineering are realized.Term as used herein " goods " is to comprise the computer program that can visit from any computer-readable equipment, carrier wave or medium.For example, computer-readable medium (for example can include but not limited to magnetic storage apparatus, hard disk, floppy disk, tape etc.), CD (for example, compact discs (CD), digital versatile disc (DVD) etc.), smart card and flash memory device (for example, EPROM, card, rod, key actuated device etc.).In addition, various storage medium described herein is expressed as one or more equipment and/or other machine readable media that is used for stored information.Term " machine readable media " includes but not limited to can store, comprise and/or carry wireless channel and various other medium of instruction and/or data.
Description above comprises giving an example of one or more embodiment.Certainly, all possible combination of describing parts or method in order to describe the foregoing description is impossible, but those of ordinary skills should be realized that each embodiment can do further combinations and permutations.Therefore, the embodiment that describes herein is intended to contain all the such changes, modifications and variations in the protection range that falls into appended claims.In addition, " comprise " with regard to the term that uses in specification or claims, the mode that contains of this speech is similar to term and " comprises ", just as " comprising, " in the claims as link word explain like that.In addition, using any one term " perhaps " in the specification of claims is to represent " non-exclusionism or ".
Claims (35)
1. a communication means is characterized in that, this method comprises:
The beacon of first mobile radio station listening period broadcasting, the identity positional information, current broadcast of carrying the base station of this beacon of broadcasting in the described beacon in the cycle idle time-gap number and issue data;
When listening to first beacon of first base station broadcast first, first mobile radio station is selected first time slot according to the idle time-gap number in first beacon, and carries the answer response of self identity positional information and reported data in the broadcasting of first time slot;
When listening to first beacon once more, first mobile radio station is directly broadcasted described answer response at first time slot.
2. the method for claim 1, it is characterized in that, after described first beacon that listens to first base station broadcast first, when in setting-up time, not listening to first beacon and do not hear second beacon of second base station broadcast, first mobile radio station sends to the second contiguous mobile radio station at first time slot with described answer response, is transmitted to first base station by second mobile radio station at first time slot.
3. method as claimed in claim 2 is characterized in that, the identity positional information of carrying during all answers that first mobile radio station receives by parsing respond is selected second mobile radio station that is positioned at first base station range.
4. method as claimed in claim 2 is characterized in that, described after first time slot sends to the second contiguous mobile radio station with described answer response, first mobile radio station receives first beacon of first base station broadcast of being transmitted by second mobile radio station at first time slot.
5. method as claimed in claim 2, it is characterized in that, it is described after first time slot sends to the second contiguous mobile radio station with described answer response, when listening to second beacon of second base station broadcast first, first mobile radio station is selected second time slot according to the idle time-gap number in second beacon and is broadcasted described answer response, and stops at first time slot described answer response is sent to second mobile radio station; When listening to second beacon once more, first mobile radio station is directly broadcasted described answer response at second time slot.
6. method as claimed in claim 5, it is characterized in that, during described second beacon that listens to second base station broadcast first, first mobile radio station further sends to second mobile radio station at first time slot and finishes indication information, is transmitted to first base station by second mobile radio station at first time slot.
7. method as claimed in claim 2, it is characterized in that, it is described after first time slot sends to the second contiguous mobile radio station with described answer response, the identity positional information judgement in the answer response of broadcasting by second mobile radio station and second mobile radio station are at a distance of above setting threshold the time, and first mobile radio station stops at first time slot described answer response is sent to second mobile radio station.
8. the method for claim 1, it is characterized in that described listening to first after first beacon is when listening to second beacon of second base station broadcast first, first mobile radio station is selected second time slot and is broadcasted described answer response according to the idle time-gap number in second beacon; When listening to second beacon once more, first mobile radio station is directly broadcasted described answer response at second time slot.
9. method as claimed in claim 8 is characterized in that, during described second beacon that listens to second base station broadcast first, first mobile radio station stops at first time slot and broadcasts described answer response.
10. method as claimed in claim 9 is characterized in that, during described second beacon that listens to second base station broadcast first, first mobile radio station further sends to first base station at first time slot and finishes indication information.
11. the method for claim 1 is characterized in that, described listening to first after first beacon, and when listening to second beacon of second base station broadcast first, first mobile radio station starts the intermittent scanning of the RSSI of intensity indication to received signal;
As the RSSI of second base station during greater than the RSSI of first base station, first mobile radio station is according to the idle time-gap number in second beacon, selects second time slot and broadcasts described answer response, stops at first time slot and broadcast described answer response and stop described intermittent scanning; When listening to second beacon once more, first mobile radio station is directly broadcasted described answer response at second time slot;
As the RSSI of first base station during greater than the RSSI of second base station, first mobile radio station remains on first time slot and broadcasts described answer response.
12. method as claimed in claim 11 is characterized in that, the RSSI of described second base station is during greater than the RSSI of first base station, and first mobile radio station further sends to first base station at first time slot and finishes indication information.
13., it is characterized in that first mobile radio station also carries the identity positional information of first base station as each described method of claim 8 to 12 in the answer response of first time slot broadcasting;
First mobile radio station also carries the identity positional information of second base station in the answer response of second time slot broadcasting.
14., it is characterized in that when the time slot of replying response in broadcasting listened to the conflict indication information, first mobile radio station was reselected the time slot that response is replied in broadcasting as claim 1,5,8 or 11 described methods.
15. a communication means is characterized in that, this method comprises: base station periodic broadcasting beacon, the identity positional information, current broadcast of carrying self in the described beacon in the cycle idle time-gap number and issue data;
The answer response of mobile radio station broadcasting is monitored in the base station, the identity positional information and the reported data of carrying mobile radio station in the described answer response;
When numbering time slot corresponding in crack listened to the answer response at one's leisure, deleted this time slot the base station from idle time-gap number.
16. method as claimed in claim 15 is characterized in that, also comprises:
When the time slot that listens to the answer response listens to the end indication information, the base station adds this time slot in the idle time-gap number.
17. method as claimed in claim 15 is characterized in that, also comprises:
When not listening to once more when replying response listening to the time slot of replying response, base station initiated timer does not still listen to and replys response if described timer reaches behind the timing thresholding base station, and this time slot is added in the idle time-gap number.
18. method as claimed in claim 15 is characterized in that, when numbering time slot corresponding in crack listens to the answer response of two mobile radio station broadcasting at one's leisure, sends the conflict indication information at this time slot to these two mobile radio stations.
19. a mobile radio station is characterized in that, this mobile radio station comprises:
Monitoring device is used for the beacon of listening period broadcasting, the identity positional information, current broadcast of carrying the base station of this beacon of broadcasting in the described beacon in the cycle idle time-gap number and issue data;
Time slot selection device triggers when listening to first beacon of first base station broadcast first by described monitoring device, is used for selecting first time slot according to the idle time-gap number of first beacon;
Reply the response broadcaster, be used for carrying the answer response of self identity positional information and reported data in the broadcasting of first time slot.
20. mobile radio station as claimed in claim 19 is characterized in that, described answer response broadcaster comprises:
The broadcasting performance element is used for broadcasting described answer response at first time slot;
First retransmission unit does not trigger when being listened to first beacon and do not heard second beacon of second base station broadcast in setting-up time by described monitoring device, is used for sending described answer response at first time slot to other contiguous mobile radio stations;
Second retransmission unit is used to receive the answer response that other contiguous mobile radio stations send, and is transmitted to first base station at the time slot that receives the answer response.
21. mobile radio station as claimed in claim 20 is characterized in that, described answer response broadcaster also comprises:
Resolution unit is used for resolving all answers that receive and responds the identity positional information of carrying, and selects other mobile radio stations of the described vicinity that is positioned at first base station range.
22. mobile radio station as claimed in claim 20 is characterized in that, described first retransmission unit is further used for first beacon at first base station broadcast of other contiguous mobile radio stations forwardings of first time slot reception;
Described second retransmission unit is further used at the time slot of receive replying response, and first beacon of first base station broadcast is transmitted to other contiguous mobile radio stations.
23. mobile radio station as claimed in claim 20, it is characterized in that, described time slot selection device triggers when further listening to second beacon of the second base station periodic broadcasting first by described monitoring device, according to the idle time-gap number in second beacon, selects second time slot;
Described broadcasting performance element is further used for broadcasting described answer response at second time slot;
Described first retransmission unit triggers when further listening to second beacon by described monitoring device, stops at first time slot and sends described answer response to other contiguous mobile radio stations.
24. mobile radio station as claimed in claim 23 is characterized in that, also comprises in the described answer response broadcaster:
Finish the indication transmitting element, trigger when listening to second beacon first, be used for sending the end indication information to other contiguous mobile radio stations at first time slot by described monitoring device;
The 3rd retransmission unit is used to receive the end indication information that other contiguous mobile radio stations send, and is transmitted to first base station at the time slot that receives the end indication information.
25. mobile radio station as claimed in claim 20, it is characterized in that, also comprise in the described answer response broadcaster: the range estimation unit, the identity positional information that is used for the answer response by adjacent other mobile radio stations broadcasting judge with other adjacent mobile radio stations when surpassing setting threshold, trigger described first retransmission unit and stop at first time slot described answer response is sent to other adjacent mobile radio stations.
26. mobile radio station as claimed in claim 19, it is characterized in that described time slot selection device triggers when further listening to second beacon of the second base station periodic broadcasting first by described monitoring device, according to the idle time-gap number in second beacon, select second time slot;
Described answer response broadcaster is further used for broadcasting described answer response at second time slot.
27. mobile radio station as claimed in claim 26 is characterized in that, described answer response broadcaster triggers when further listening to second beacon first by described monitoring device, stops at first time slot and broadcasts described answer response.
28. mobile radio station as claimed in claim 27, it is characterized in that, this mobile radio station also comprises: finish the indication dispensing device, trigger when listening to second beacon of second base station broadcast first by described monitoring device, be used for sending to first base station at first time slot and finish indication information.
29. mobile radio station as claimed in claim 19 is characterized in that, this mobile radio station also comprises:
Scanning means triggers when listening to second beacon of second base station broadcast first by described monitoring device, is used for the RSSI of intermittent scanning first base station and second base station, and during greater than the RSSI of first base station, stops described scanning at the RSSI of second base station;
Described time slot selection device triggers when further listening to second beacon first by described monitoring device, according to the idle time-gap number in second beacon, selects second time slot;
Described answer response broadcaster, the RSSI that is further used in second base station are broadcasted described answer response at second time slot during greater than the RSSI of first base station, and stop at first time slot and broadcast described answer response.
30. mobile radio station as claimed in claim 29 is characterized in that, this mobile radio station also comprises: finish the indication dispensing device, be used at the RSSI of second base station during greater than the RSSI of first base station, send to first base station at first time slot and finish indication information.
31. as claim 19,23,26 or 29 described mobile radio stations, it is characterized in that, described time slot selection device is further replied in broadcasting by described monitoring device and is triggered when the time slot that responds listens to the conflict indication information, reselects the time slot that response is replied in broadcasting.
32. a base station is characterized in that, this base station comprises:
Broadcaster is used for the periodic broadcasting beacon, the identity positional information, current broadcast of carrying self in the described beacon in the cycle idle time-gap number and issue data;
Monitoring device is used to monitor the answer response that mobile radio station is broadcasted, the identity positional information and the reported data of carrying mobile radio station in the described answer response;
Updating device is triggered when numbering time slot corresponding in crack listens to the answer response at one's leisure by described monitoring device, is used for deleting from idle time-gap number listening to the time slot of replying response.
33. base station as claimed in claim 32, it is characterized in that, described updating device is further triggered when the time slot of monitoring the answer response listens to the end indication information by described monitoring device, adds in the idle time-gap number listening to the time slot that finishes indication information.
34. base station as claimed in claim 32 is characterized in that, also comprises timer in this base station, is not listened to once more to reply when responding at the time slot of monitoring the answer response by described monitoring device to start;
Described updating device was not further triggered when the time slot of replying response listens to the answer response described the monitoring after described timer reaches the timing thresholding yet by described monitoring device, this had been monitored the time slot of replying response added in the idle time-gap number.
35. base station as claimed in claim 32, it is characterized in that, also comprise in this base station: the conflict indicating device, trigger when numbering time slot corresponding in crack listens to the answer response of two mobile radio stations broadcasting at one's leisure by described monitoring device, be used for sending the conflict indication informations to these two mobile radio stations at this time slot.
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| CN2011102294932A CN102291802A (en) | 2011-08-04 | 2011-08-11 | Communication method and device |
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| CN201110223123 | 2011-08-04 | ||
| CN201110223123.8 | 2011-08-04 | ||
| CN2011102294932A CN102291802A (en) | 2011-08-04 | 2011-08-11 | Communication method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014186985A1 (en) * | 2013-05-24 | 2014-11-27 | 东莞宇龙通信科技有限公司 | Communication device and wireless communication method |
| CN105101450A (en) * | 2014-05-20 | 2015-11-25 | 华为技术有限公司 | Broadcasting resource scheduling method, user equipment and base station |
| CN105916171A (en) * | 2016-03-30 | 2016-08-31 | 深圳市金立通信设备有限公司 | Access control method, access device and terminal device |
| CN107046685A (en) * | 2017-05-22 | 2017-08-15 | 哈尔滨海能达科技有限公司 | A kind of positional information report method and mobile station |
| WO2018213968A1 (en) * | 2017-05-22 | 2018-11-29 | 哈尔滨海能达科技有限公司 | Position information reporting method and mobile station |
| CN109474918A (en) * | 2017-09-08 | 2019-03-15 | 睿鑫科技（天津）有限公司 | A kind of methods, devices and systems of short-range communication |
| CN113347706A (en) * | 2021-06-01 | 2021-09-03 | 四川中电昆辰科技有限公司 | System and method for determining position occurrence time of device to be positioned in positioning system |
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- 2011-08-11 CN CN2011102294932A patent/CN102291802A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014186985A1 (en) * | 2013-05-24 | 2014-11-27 | 东莞宇龙通信科技有限公司 | Communication device and wireless communication method |
| CN105101450A (en) * | 2014-05-20 | 2015-11-25 | 华为技术有限公司 | Broadcasting resource scheduling method, user equipment and base station |
| WO2015176509A1 (en) * | 2014-05-20 | 2015-11-26 | 华为技术有限公司 | Method for scheduling broadcast resource, user equipment, and base station |
| CN105101450B (en) * | 2014-05-20 | 2018-09-07 | 华为技术有限公司 | Dispatching method, user equipment and the base station of broadcast resource |
| CN105916171A (en) * | 2016-03-30 | 2016-08-31 | 深圳市金立通信设备有限公司 | Access control method, access device and terminal device |
| CN107046685A (en) * | 2017-05-22 | 2017-08-15 | 哈尔滨海能达科技有限公司 | A kind of positional information report method and mobile station |
| WO2018213968A1 (en) * | 2017-05-22 | 2018-11-29 | 哈尔滨海能达科技有限公司 | Position information reporting method and mobile station |
| CN107046685B (en) * | 2017-05-22 | 2020-07-31 | 哈尔滨海能达科技有限公司 | Position information reporting method and mobile station |
| CN109474918A (en) * | 2017-09-08 | 2019-03-15 | 睿鑫科技（天津）有限公司 | A kind of methods, devices and systems of short-range communication |
| CN109474918B (en) * | 2017-09-08 | 2022-03-04 | 睿鑫科技（天津）有限公司 | Short-distance communication method, device and system |
| CN113347706A (en) * | 2021-06-01 | 2021-09-03 | 四川中电昆辰科技有限公司 | System and method for determining position occurrence time of device to be positioned in positioning system |
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Application publication date: 20111221 |