CN103857034A - Method and device for determining position information of user equipment and base station - Google Patents
Method and device for determining position information of user equipment and base station Download PDFInfo
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- CN103857034A CN103857034A CN201210510097.1A CN201210510097A CN103857034A CN 103857034 A CN103857034 A CN 103857034A CN 201210510097 A CN201210510097 A CN 201210510097A CN 103857034 A CN103857034 A CN 103857034A
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Abstract
The invention provides a method and device for determining position information of user equipment and a base station. The method comprises the steps of determining the first position information according to a detection reference signal from the user equipment; sending first request information to the user equipment, wherein the first request information can be used for requesting the user equipment to report the second position information obtained by the user equipment; receiving the second position information fed back by the user equipment based on the first request information; determining the final position information of the user equipment according to the first position information and the second position information. According to the method and device for determining the position information of the user equipment and the base station, the determined final position information integrates real-time performance and reliability of the position information.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method, device and the base station of the positional information for determining subscriber equipment.
Background technology
In communication system, in LTE system, LTE TDD system, need to, according to the positional information of subscriber equipment, send information to user.Fig. 1 is base station sends information in schematic diagram from down link to subscriber equipment; Wherein, numeral number after PRB represents used PRB resource, UE0 to UE9 represents respectively each subscriber equipment, the positional information of subscriber equipment can comprise DOA (Direction Of Arrival), according to this DOA, the wave beam wooden fork heavy (Beamforming Weight) of each antenna can be calculated in base station, thereby last wave beam is penetrated according to the direction of this DOA, for example, as shown in Figure 1, LTE base station, according to the positional information of subscriber equipment, is come to send information to subscriber equipment.
But, the mode of various definite customer position informations of the prior art, as EBB, ComEBB, MRT etc., destroyed for determining the signal of customer position information at it, or, when subscriber equipment is not supported its signal for definite position information of user equipment, often be difficult to determine more exactly subscriber equipment, the signal that base station sends can not be received by subscriber equipment preferably, thereby cause the decline of communication quality, as cause higher block error rate (BLER, Block Error Radio).
Summary of the invention
The object of this invention is to provide a kind of method, device and base station of the positional information for definite subscriber equipment.
According to an aspect of the present invention, provide a kind of in base station for determining the method for positional information of subscriber equipment, wherein, the method comprises the following steps:
-according to the detection reference signal from subscriber equipment, determine its primary importance information;
Wherein, the method is further comprising the steps of:
A sends the first solicited message to described subscriber equipment, and this first solicited message can be used in the second place information of described its acquisition of user equipment to report of request;
B receives the described second place information of described subscriber equipment based on described the first solicited message feedback;
Wherein, the method is further comprising the steps of:
X, according to described primary importance information and described second place information, determines the final position information of described subscriber equipment.
According to another aspect of the present invention, also provide a kind of in base station for determining the device of positional information of subscriber equipment, wherein, this device comprises:
The first determining device, for according to the detection reference signal from subscriber equipment, determines its primary importance information;
Dispensing device, for sending the first solicited message to described subscriber equipment, this first solicited message can be used in the second place information of described its acquisition of user equipment to report of request;
Receiving system, for receiving the described second place information of described subscriber equipment based on described the first solicited message feedback;
The second determining device, for according to described primary importance information and described second place information, determines the final position information of described subscriber equipment.
Compared with prior art, the present invention has the following advantages: 1) by determining final position information in conjunction with second place information on the basis in primary importance information, because the reliability of the second place information of user equipment to report is higher, therefore, can reduce the weak risk of bringing of primary importance information reliability in conjunction with second place information, and the real-time of primary importance information is better, therefore, in conjunction with primary importance information, also it is long to solve the second place information reporting cycle, what real-time was poor determines, therefore, the determined final position information of the present invention has been taken into account real-time and the reliability of positional information, 2) also can judge that whether current signal quality is poor, and only when signal quality is poor, when the reliability of primary importance information possibility is poor, just determine final position information in conjunction with primary importance information and second place information, 3) can heavily be worth to adjust primary importance information and second place information shared proportion in the time determining final position information in conjunction with wooden fork, improve the accuracy of final position information, 4) can be in conjunction with many factors, the wooden fork weight of adjustment information primary importance information and second place information in real time, makes determining of final position information more accurate, 5) can detect the primary importance information extremely going out, exempt from the impact of abnormal primary importance information on final position information thereby reduce.
Accompanying drawing explanation
By reading the detailed description that non-limiting example is done of doing with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is base station sends information in schematic diagram from down link to subscriber equipment;
Fig. 2 be a preferred embodiment of the invention in base station for determining the method flow diagram of positional information of subscriber equipment;
Fig. 3 be another preferred embodiment of the present invention in base station for determining the method flow diagram of positional information of subscriber equipment;
Fig. 4 be a preferred embodiment of the invention in base station for determining the structural representation of device of positional information of subscriber equipment;
Fig. 5 be another preferred embodiment of the present invention in base station for determining the structural representation of device of positional information of subscriber equipment.
In accompanying drawing, same or analogous Reference numeral represents same or analogous parts.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 2 be a preferred embodiment of the invention in base station for determining the method flow diagram of positional information of subscriber equipment.Wherein, described subscriber equipment include but not limited to panel computer, smart mobile phone, PDA etc. any can with the subscriber equipment of base station communication; Preferably, described base station belongs to LTE system, and more preferably, described base station belongs to LTE TDD system.
It should be noted that; described base station, subscriber equipment and communication system are only for giving an example; other base stations existing or that may occur from now on, subscriber equipment and communication system, as applicable to the present invention, also should be included in protection range of the present invention, and be contained in this with way of reference.
Comprise step S1, step S2, step S3 and step S4 according to the method for the present embodiment.
In step S1, the primary importance information of subscriber equipment, according to the detection reference signal (SRS, Sounding Reference Signal) from subscriber equipment, is determined in base station.
Wherein, described primary importance information represents the information that determine, the position that can be used in equipment for indicating user based on described detection reference signal, and for example, DOA, wave beam wooden fork are heavily etc.
In step S2, base station sends the first solicited message to subscriber equipment, and this first solicited message can be used in the second place information of described its acquisition of user equipment to report of request.
Wherein, this second place information represents the information of subscriber equipment position that obtain, that can be used in equipment for indicating user by its locate mode; For example, second place information comprise subscriber equipment by GPS locate obtain, the latitude and longitude information of this subscriber equipment present position etc.
For example, L1/L2 layer in base station sends subscriber location request to rrc layer, rrc layer is received after this subscriber location request, send RRC connection to subscriber equipment and reshuffle (RRCConnection Reconfiguration), as the first solicited message, wherein, this RRC connects the measid reshuffling and is configured to Location Info, to require subscriber equipment that second place information is provided.
Then, subscriber equipment according to the first solicited message to base station feedback second place information.
Then,, in step S3, base station receives the second place information of subscriber equipment based on the first solicited message feedback.
For example, the rrc layer in base station receives the second place information from subscriber equipment, and this second place information is transferred to L1/L2 layer via inside of base station transmission channel.
It should be noted that, between step S1 and step S2 and step S3, there is no sequencing.
In step S4, the final position information of subscriber equipment, according to described primary importance information and described second place information, is determined in base station.Preferably, this final position information directly comprises DOA and the heavy information of wave beam wooden fork, or this final position information can be used in determines DOA and wave beam wooden fork weight.
Particularly, base station, according to primary importance information and second place information, determines that the mode of the final position information of subscriber equipment includes but not limited to:
1) final position information of subscriber equipment, directly according to primary importance information and second place information, is determined in base station.
For example, the positional information corresponding to position of the line mid point that is positioned at primary importance information and indicated two positions of second place information directly determined in base station, is the final position information of subscriber equipment.
Again for example, primary importance information comprises DOA information, second place information comprises the latitude and longitude information of the present position of subscriber equipment, DOA is calculated according to latitude and longitude information in base station, and ask for the mean value of the DOA information in DOA information and the primary importance information of second place information gained, as final position information of subscriber equipment etc.
2) base station weighs information according to positional information and the first wooden fork thereof, and described second place information and the second wooden fork thereof weigh information, determine the described final position information of subscriber equipment.This implementation will be described in detail in follow-up reference is embodiment illustrated in fig. 3, not repeat them here.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any according to described primary importance information and described second place information, determine the implementation of the final position information of subscriber equipment, all should be within the scope of the present invention.
Need to further illustrate, base station can be during service-user equipment, repeats above-mentioned steps S1 to step S4, to constantly update the position of subscriber equipment; Preferably, step S1 may be different from the repetition rate of step S2 and step S3, for example, base station can be at interval of 100ms, receive from the detection reference signal of subscriber equipment and perform step S1, but it may at interval of 1s, even the several seconds just performs step S2 and step S3, therefore, in the time that primary importance information is updated, base station is without waiting for execution step S2 and step S3, primary importance information based on this renewal and the last second place information receiving immediately, execution step S4; More preferably, the repetition rate of step S2 and step S3 may be different, for example, when performing step after S2 for the first time, subscriber equipment can be configured based on the first solicited message, thereby directly automatically report second place information with the fixed cycle, carry out requirement it reports second place information and constantly perform step S2 without base station.
As one of preferred version of the present embodiment, the method for the present embodiment also comprises step S5 and S6.
In step S5, base station judges the whether first predetermined condition of quality feedback information of subscriber equipment.
Wherein, described quality feedback information comprises the information that can be used in reflected signal quality, for example, and block error rate etc.
Wherein, described the first predetermined condition comprise represent channel quality lower than the quality feedback information of predetermined extent should be satisfied condition; For example, the first predetermined condition comprises that block error rate is higher than predetermined errors rate threshold value, and again for example, the first predetermined condition comprises that within the scope of the scheduled time, block error rate is uprised by low, and its rate of change exceedes predetermined variation rate threshold value etc.
For example, base station judges whether the block error rate of the down link of TM7/TM8 exceedes predetermined errors rate threshold value etc.
In step S6, in the time judging quality feedback information first predetermined condition, base station execution step S2, step S2 and step S4.
It should be noted that, when in step S5, base station judges that quality feedback information is not when first predetermined condition, the directly final position information using primary importance information as subscriber equipment.
The present invention is by determining final position information in conjunction with second place information on the basis in primary importance information, because the reliability of the second place information of user equipment to report is higher, therefore, can reduce the weak risk of bringing of primary importance information reliability in conjunction with second place information, and the real-time of primary importance information is better, therefore, in conjunction with primary importance information, also it is long to solve the second place information reporting cycle, what real-time was poor determines, therefore, the determined final position information of the present invention has been taken into account real-time and the reliability of positional information.Preferably, the present invention also can judge that whether current signal quality is poor, and only when signal quality is poor, when the reliability of primary importance information possibility is poor, just determines final position information in conjunction with primary importance information and second place information.
Fig. 3 be another preferred embodiment of the present invention in base station for determining the method flow diagram of positional information of subscriber equipment.The present embodiment comprises step S1, step S2, step S3 and step S4, and wherein, step S4 comprises step S4 '.
Wherein, step S1 is described in detail with reference to the embodiment shown in FIG. 2 to step S3, does not repeat them here.
In step S4 ', base station is according to primary importance information and the heavy information of the first wooden fork thereof, and second place information and the second wooden fork thereof weigh information, determine the final position information of subscriber equipment.
Wherein, the heavy information of the heavy information of the first wooden fork and the second wooden fork can preset, and also can determine in real time according to quality feedback information.
For example, the default heavy information of the second wooden fork is 0.4, the heavy information of the first wooden fork is 0.6, base station comprises DOA information DOA_srs according to the definite primary importance information of detection reference signal in step S1, and the second place information of longitude and latitude that base station receives in step S3 according to it, that comprise user present position, calculate its corresponding DOA information DOA_pos, and according to predetermined formula, calculate final position information DOA_final=0.6*DOA_srs+0.4*DOA_pos.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any according to primary importance information and the heavy information of the first wooden fork and second place information and the heavy information of the second wooden fork thereof, determine the implementation of the final position information of subscriber equipment, all should be within the scope of the present invention.
The present embodiment can heavily be worth to adjust primary importance information and second place information shared proportion in the time determining final position information in conjunction with wooden fork, has improved the accuracy of final position information.
As one of preferred version of the present embodiment, if the heavy informational needs of the heavy information of the first wooden fork and the second wooden fork is determined in real time, the method of the present embodiment also comprises according to the quality feedback information from subscriber equipment, determines the step of the heavy information of the heavy information of the first wooden fork and the second wooden fork.
Wherein, base station can adopt various ways to determine the heavy information of the first wooden fork and the heavy information of the second wooden fork based on signal instruction feedback information; Particularly, the signal quality that quality feedback information reflects is higher, the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is larger, and the signal quality that quality feedback information reflects is lower, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is less.
Preferably, the variation tendency of the heavy information of described the first wooden fork is contrary with the variation tendency of the heavy information of described the second wooden fork; Also, the heavy information of determined the first wooden fork is larger, and the heavy information of determined the second wooden fork is less, and the heavy information of determined the first wooden fork is less, and the heavy information of determined the second wooden fork is larger.
For example, quality feedback information is block error rate BLER, and base station is according to predetermined formula: the heavy information=1-BLER of the first wooden fork, the heavy information=BLER of the second wooden fork, determines the value of the heavy information of the heavy information of the first wooden fork and the second wooden fork.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any according to primary importance information and the heavy information of the first wooden fork and second place information and the heavy information of the second wooden fork thereof, determine the implementation of the final position information of subscriber equipment, all should be within the scope of the present invention.
Preferably, in last preferred version, the heavy information of described the first wooden fork and the heavy information of described the second wooden fork can, further according to the time interval between the quality feedback information from described subscriber equipment and last time and the current time that receives second place information, be determined in base station.
Wherein, base station can adopt various ways to determine the heavy information of the first wooden fork and the heavy information of the second wooden fork based on signal instruction feedback information and the described time interval.Particularly, the signal quality that quality feedback information reflects is higher, the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is larger, and the signal quality that quality feedback information reflects is lower, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is less; The time interval is longer, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is larger, and the time interval is shorter, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is less.
For example, quality feedback information is block error rate BLER, the predetermined time interval that base station receives second place information is 2s, base station is according to predetermined formula: heavy information=(1-BLER) the * T of the first wooden fork, heavy information=the BLER* of the second wooden fork (1-T), the value of determining the heavy information of the heavy information of the first wooden fork and the second wooden fork, wherein, T is the time interval.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any basis is from the time interval between quality feedback information and last time and the current time that receives second place information of described subscriber equipment, determine the implementation of the heavy information of described the first wooden fork and the heavy information of described the second wooden fork, all should be within the scope of the present invention.
The present embodiment can also be in conjunction with many factors, and the wooden fork weight of adjustment information primary importance information and second place information in real time makes determining of final position information more accurate.
As one of preferred version of the present embodiment, the method for the present embodiment is further comprising the steps of:
When the variation of comparing historical primary importance information when the current primary importance information receiving meets the second predetermined condition, base station is reduced to predetermined wooden fork by heavy the first wooden fork information and is heavily worth.
Wherein, described the second predetermined condition includes but not limited to: exceed predetermined speed change threshold etc. based on the current primary importance information receiving and the definite change in location speed of historical primary importance information.
For example, base station is according to the current primary importance information receiving and the last primary importance information receiving, and in conjunction with time interval of the primary importance information receiving for twice, the change in location speed that calculates subscriber equipment is 3.75km/s, then, base station judges that this change in location speed exceedes predetermined speed change threshold 500m/s, base station judges that the variation that the current primary importance information receiving is compared historical primary importance information meets the second predetermined condition, and the heavy information of the first wooden fork is reduced to predetermined wooden fork is heavily worth 0.
Preferably, in reducing the heavy information of the first wooden fork, also can improve the heavy information of the second wooden fork, for example, if the heavy information of the first wooden fork is reduced to 0.01 from 0.6, can correspondingly the wooden fork of the heavy information reduction of the first wooden fork heavily be increased to the heavy information of the second wooden fork, for example, the heavy information of the second wooden fork is increased to 0.99 etc. from 0.4.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, when any variation of comparing historical primary importance information when the current primary importance information receiving meets the second predetermined condition, heavy the first wooden fork information is reduced to the implementation that predetermined wooden fork is heavily worth, all should be within the scope of the present invention.
Because the movement of subscriber equipment is less than certain speed conventionally, therefore, the present embodiment can detect the primary importance information extremely going out, thereby has reduced the impact of abnormal primary importance information on final position information.
Fig. 4 be a preferred embodiment of the invention in base station for determining the structural representation of device of positional information of subscriber equipment.The device of the present embodiment comprises the first determining device 1, dispensing device 2, receiving system 3 and the second determining device 4.
The first determining device 1, according to the detection reference signal (SRS, SoundingReference Signal) from subscriber equipment, is determined the primary importance information of subscriber equipment.
Wherein, described primary importance information represents the information that determine, the position that can be used in equipment for indicating user based on described detection reference signal, and for example, DOA, wave beam wooden fork are heavily etc.
Wherein, this second place information represents the information of subscriber equipment position that obtain, that can be used in equipment for indicating user by its locate mode; For example, second place information comprise subscriber equipment by GPS locate obtain, the latitude and longitude information of this subscriber equipment present position etc.
For example, L1/L2 layer and rrc layer in dispensing device 2 distributions and base station, L1/L2 layer in base station sends subscriber location request to rrc layer, rrc layer is received after this subscriber location request, send RRC connection to subscriber equipment and reshuffle (RRC Connection Reconfiguration), as the first solicited message, wherein, this RRC connects the measid reshuffling and is configured to LocationInfo, to require subscriber equipment that second place information is provided.
Then, subscriber equipment according to the first solicited message to base station feedback second place information.
Then, receiving system 3 receives the second place information of subscriber equipment based on the first solicited message feedback.
For example, L1/L2 layer and rrc layer in receiving system 3 distributions and base station, the rrc layer in base station receives the second place information from subscriber equipment, and this second place information is transferred to L1/L2 layer via inside of base station transmission channel.
It should be noted that, between the performed operation of the first determining device 1 and dispensing device 2 and receiving system 3, there is no sequencing.
The second determining device 4, according to described primary importance information and described second place information, is determined the final position information of subscriber equipment.Preferably, this final position information directly comprises DOA and the heavy information of wave beam wooden fork, or this final position information can be used in determines DOA and wave beam wooden fork weight.
Particularly, the second determining device 4, according to primary importance information and second place information, determines that the mode of the final position information of subscriber equipment includes but not limited to:
1) the second determining device 4, directly according to primary importance information and second place information, is determined the final position information of subscriber equipment.
For example, the positional information corresponding to position of the line mid point that is positioned at primary importance information and indicated two positions of second place information directly determined in base station, is the final position information of subscriber equipment.
Again for example, primary importance information comprises DOA information, second place information comprises the latitude and longitude information of the present position of subscriber equipment, DOA is calculated according to latitude and longitude information in base station, and ask for the mean value of the DOA information in DOA information and the primary importance information of second place information gained, as final position information of subscriber equipment etc.
2) the second determining device 4 weighs information according to positional information and the first wooden fork thereof, and described second place information and the second wooden fork thereof weigh information, determine the described final position information of subscriber equipment.This implementation will be described in detail in follow-up reference is embodiment illustrated in fig. 5, not repeat them here.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any according to described primary importance information and described second place information, determine the implementation of the final position information of subscriber equipment, all should be within the scope of the present invention.
Need to further illustrate, during service-user equipment, the first determining device 1, dispensing device 2, receiving system 3 and the second determining device 4 can repeat operation, to constantly update the position of subscriber equipment, preferably, the repetition rate of the operation that the first determining device 1 is carried out from dispensing device 2 and receiving system 3 may be different, for example, the first determining device 1 can be at interval of 100ms, receive detection reference signal definite primary importance information from subscriber equipment, but dispensing device 2 and receiving system 3 may be at interval of even just executable operations of several seconds of 1s, therefore, whenever the first determining device 1 executable operations and while upgrading primary importance information, the second determining device 4 is without waiting for dispensing device 2 and receiving system 3, the second place information that the primary importance information that can this time upgrade based on the first determining device 1 immediately and 3 the last times of receiving system receive, executable operations, more preferably, the repetition rate of the performed operation of dispensing device 2 and receiving system 3 may be different, for example, when dispensing device 2 sends after the first solicited message, subscriber equipment can be configured based on the first solicited message, thereby directly automatically report second place information received device 3 to receive with the fixed cycle, and carry out requirement user equipment to report second place information without the continuous executable operations of dispensing device 2.
As one of preferred version of the present embodiment, the device of the present embodiment also comprises judgment means (not shown) and trigger equipment (not shown).
Judgment means judges the whether first predetermined condition of quality feedback information of subscriber equipment.
Wherein, described quality feedback information comprises the information that can be used in reflected signal quality, for example, and block error rate etc.
Wherein, described the first predetermined condition comprise represent channel quality lower than the quality feedback information of predetermined extent should be satisfied condition; For example, the first predetermined condition comprises that block error rate is higher than predetermined errors rate threshold value, and again for example, the first predetermined condition comprises that within the scope of the scheduled time, block error rate is uprised by low, and its rate of change exceedes predetermined variation rate threshold value etc.
For example, judgment means judges whether the block error rate of the down link of TM7/TM8 exceedes predetermined errors rate threshold value etc.
In the time judging quality feedback information first predetermined condition, trigger equipment triggers receiving system 2, dispensing device 3 and the second determining device 4 executable operations.
It should be noted that, when judgment means judges that quality feedback information is not when first predetermined condition, the directly final position information using primary importance information as subscriber equipment of base station, receiving system 2, dispensing device 3 and the second determining device 4 are without executable operations.
The present invention is by determining final position information in conjunction with second place information on the basis in primary importance information, because the reliability of the second place information of user equipment to report is higher, therefore, can reduce the weak risk of bringing of primary importance information reliability in conjunction with second place information, and the real-time of primary importance information is better, therefore, in conjunction with primary importance information, also it is long to solve the second place information reporting cycle, what real-time was poor determines, therefore, the determined final position information of the present invention has been taken into account real-time and the reliability of positional information.Preferably, the present invention also can judge that whether current signal quality is poor, and only when signal quality is poor, when the reliability of primary importance information possibility is poor, just determines final position information in conjunction with primary importance information and second place information.
Fig. 5 be another preferred embodiment of the present invention in base station for determining the structural representation of device of positional information of subscriber equipment.The device of the present embodiment comprises the first determining device 1, dispensing device 2, receiving system 3 and the second determining device 4; Wherein, the second determining device 4 comprises the first sub-determining device 41.
Wherein, the first determining device 1, dispensing device 2 and receiving system 3 are described in detail with reference to the embodiment shown in FIG. 4, do not repeat them here.
The first sub-determining device 41 is according to primary importance information and the heavy information of the first wooden fork thereof, and second place information and the second wooden fork thereof weigh information, determine the final position information of subscriber equipment.
Wherein, the heavy information of the heavy information of the first wooden fork and the second wooden fork can preset, and also can determine in real time according to quality feedback information.
For example, the default heavy information of the second wooden fork is 0.4, the heavy information of the first wooden fork is 0.6, the first determining device 1 comprises DOA information DOA_srs according to the definite primary importance information of detection reference signal, and receiving system 3 receives the second place information of the longitude and latitude that comprises user present position, the first sub-determining device 41 is calculated DOA information DOA_pos corresponding to second place information, and according to predetermined formula, calculates final position information DOA_final=0.6*DOA_srs+0.4*DOA_pos.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any according to primary importance information and the heavy information of the first wooden fork and second place information and the heavy information of the second wooden fork thereof, determine the implementation of the final position information of subscriber equipment, all should be within the scope of the present invention.
The present embodiment can heavily be worth to adjust primary importance information and second place information shared proportion in the time determining final position information in conjunction with wooden fork, has improved the accuracy of final position information.
As one of preferred version of the present embodiment, if the heavy informational needs of the heavy information of the first wooden fork and the second wooden fork is determined in real time, the device of the present embodiment also comprises the 3rd determining device (not shown), the 3rd determining device, according to the quality feedback information from subscriber equipment, is determined the step of the heavy information of the heavy information of the first wooden fork and the second wooden fork.
Wherein, the 3rd determining device can adopt various ways to determine the heavy information of the first wooden fork and the heavy information of the second wooden fork based on signal instruction feedback information; Particularly, the signal quality that quality feedback information reflects is higher, the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is larger, and the signal quality that quality feedback information reflects is lower, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is less.
Preferably, the variation tendency of the heavy information of described the first wooden fork is contrary with the variation tendency of the heavy information of described the second wooden fork; Also, the heavy information of determined the first wooden fork is larger, and the heavy information of determined the second wooden fork is less, and the heavy information of determined the first wooden fork is less, and the heavy information of determined the second wooden fork is larger.
For example, quality feedback information is block error rate BLER, and the 3rd determining device is according to predetermined formula: the heavy information=1-BLER of the first wooden fork, the heavy information=BLER of the second wooden fork, determines the value of the heavy information of the heavy information of the first wooden fork and the second wooden fork.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any according to primary importance information and the heavy information of the first wooden fork and second place information and the heavy information of the second wooden fork thereof, determine the implementation of the final position information of subscriber equipment, all should be within the scope of the present invention.
Preferably, in last preferred version, the 3rd determining device further comprises the second sub-determining device (not shown), this second sub-determining device, according to the time interval between the quality feedback information from described subscriber equipment and last time and the current time that receives second place information, is determined the heavy information of described the first wooden fork and the heavy information of described the second wooden fork.
Wherein, the second sub-determining device can adopt various ways to determine the heavy information of the first wooden fork and the heavy information of the second wooden fork based on signal instruction feedback information and the described time interval.Particularly, the signal quality that quality feedback information reflects is higher, the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is larger, and the signal quality that quality feedback information reflects is lower, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is less; The time interval is longer, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is larger, and the time interval is shorter, and the ratio that the heavy information of the first wooden fork is compared the heavy information of the second wooden fork is less.
For example, quality feedback information is block error rate BLER, the predetermined time interval that base station receives second place information is 2s, the second sub-determining device is according to predetermined formula: heavy information=(1-BLER) the * T of the first wooden fork, heavy information=the BLER* of the second wooden fork (1-T), the value of determining the heavy information of the heavy information of the first wooden fork and the second wooden fork, wherein, T is the time interval.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, any basis is from the time interval between quality feedback information and last time and the current time that receives second place information of described subscriber equipment, determine the implementation of the heavy information of described the first wooden fork and the heavy information of described the second wooden fork, all should be within the scope of the present invention.
The present embodiment can also be in conjunction with many factors, and the wooden fork weight of adjustment information primary importance information and second place information in real time makes determining of final position information more accurate.
As one of preferred version of the present embodiment, the device of the present embodiment also comprises adjusting device (not shown), when the variation of comparing historical primary importance information when the current primary importance information receiving meets the second predetermined condition, adjusting device is reduced to predetermined wooden fork by heavy the first wooden fork information and is heavily worth.
Wherein, described the second predetermined condition includes but not limited to: exceed predetermined speed change threshold etc. based on the current primary importance information receiving and the definite change in location speed of historical primary importance information.
For example, adjusting device is according to the current primary importance information receiving and the last primary importance information receiving, and in conjunction with time interval of the primary importance information receiving for twice, the change in location speed that calculates subscriber equipment is 3.75km/s, then, adjusting device judges that this change in location speed exceedes predetermined speed change threshold 500m/s, base station judges that the variation that the current primary importance information receiving is compared historical primary importance information meets the second predetermined condition, and the heavy information of the first wooden fork is reduced to predetermined wooden fork is heavily worth 0.
Preferably, in reducing the heavy information of the first wooden fork, also can improve the heavy information of the second wooden fork, for example, if the heavy information of the first wooden fork is reduced to 0.01 from 0.6, can correspondingly the wooden fork of the heavy information reduction of the first wooden fork heavily be increased to the heavy information of the second wooden fork, for example, the heavy information of the second wooden fork is increased to 0.99 etc. from 0.4.
It should be noted that, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention, those skilled in the art should understand that, when any variation of comparing historical primary importance information when the current primary importance information receiving meets the second predetermined condition, heavy the first wooden fork information is reduced to the implementation that predetermined wooden fork is heavily worth, all should be within the scope of the present invention.
Because the movement of subscriber equipment is less than certain speed conventionally, therefore, the present embodiment can detect the primary importance information extremely going out, thereby has reduced the impact of abnormal primary importance information on final position information.
It should be noted that the present invention can be implemented in the assembly of software and/or software and hardware, for example, device of the present invention can adopt application-specific integrated circuit (ASIC) (ASIC) or any other similar hardware device to realize.In one embodiment, software program of the present invention can carry out to realize step mentioned above or function by processor.Similarly, software program of the present invention (comprising relevant data structure) can be stored in computer readable recording medium storing program for performing.In addition, steps more of the present invention or function can adopt hardware to realize, for example, thereby as coordinate the circuit of carrying out each step or function with processor.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to be included in the present invention.Any Reference numeral in claim should be considered as limiting related claim.In addition, obviously other unit or step do not got rid of in " comprising " word, and odd number is not got rid of plural number.Multiple unit of stating in system claim or device also can be realized by software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.
Claims (15)
- In base station for determining the method for positional information for subscriber equipment, wherein, the method comprises the following steps:-according to the detection reference signal from subscriber equipment, determine its primary importance information;Wherein, the method is further comprising the steps of:A sends the first solicited message to described subscriber equipment, and this first solicited message can be used in the second place information of described its acquisition of user equipment to report of request;B receives the described second place information of described subscriber equipment based on described the first solicited message feedback;Wherein, the method is further comprising the steps of:X, according to described primary importance information and described second place information, determines the final position information of described subscriber equipment.
- 2. method according to claim 1, wherein, the method is further comprising the steps of:-judge from whether first predetermined condition of the quality feedback information of described subscriber equipment;-in the time judging described quality feedback information first predetermined condition, carry out described step a, b and x.
- 3. method according to claim 1 and 2, wherein, described step x comprises the following steps:-according to described primary importance information and the heavy information of the first wooden fork thereof, and described second place information and the second wooden fork thereof weigh information, determine the described final position information of described subscriber equipment.
- 4. method according to claim 3, wherein, the method is further comprising the steps of:I, according to the quality feedback information from described subscriber equipment, determines the heavy information of described the first wooden fork and the heavy information of described the second wooden fork.
- 5. method according to claim 4, wherein, described step I comprises the following steps:-according to the time interval between the quality feedback information from described subscriber equipment and last time and the current time that receives described second place information, determine the heavy information of described the first wooden fork and the heavy information of described the second wooden fork.
- 6. according to the method described in claim 4 or 5, wherein, the variation tendency of the heavy information of described the first wooden fork is contrary with the variation tendency of the heavy information of described the second wooden fork.
- 7. according to the method described in any one in claim 3 to 6, wherein, the method is further comprising the steps of:When-the variation of comparing historical primary importance information when the current described primary importance information receiving meets the second predetermined condition, heavy described the first wooden fork information is reduced to predetermined wooden fork and is heavily worth.
- In base station for determining the device of positional information for subscriber equipment, wherein, this device comprises:The first determining device, for according to the detection reference signal from subscriber equipment, determines its primary importance information;Dispensing device, for sending the first solicited message to described subscriber equipment, this first solicited message can be used in the second place information of described its acquisition of user equipment to report of request;Receiving system, for receiving the described second place information of described subscriber equipment based on described the first solicited message feedback;The second determining device, for according to described primary importance information and described second place information, determines the final position information of described subscriber equipment.
- 9. device according to claim 8, wherein, this device also comprises:Judgment means, for judging from whether first predetermined condition of the quality feedback information of described subscriber equipment;Trigger equipment, in the time judging described quality feedback information first predetermined condition, triggers described dispensing device, described receiving system and described the second determining device executable operations.
- 10. device according to claim 8 or claim 9, wherein, described the second determining device comprises:The first sub-determining device, for weighing information according to described primary importance information and the first wooden fork thereof, and described second place information and the second wooden fork thereof weigh information, determine the described final position information of described subscriber equipment.
- 11. devices according to claim 10, wherein, this device also comprises:The 3rd determining device, for according to the quality feedback information from described subscriber equipment, determines the heavy information of described the first wooden fork and the heavy information of described the second wooden fork.
- 12. devices according to claim 11, wherein, described the 3rd determining device comprises:The second sub-determining device, for according to the time interval between the quality feedback information from described subscriber equipment and last time and the current time that receives described second place information, determine the heavy information of described the first wooden fork and the heavy information of described the second wooden fork.
- 13. according to the device described in claim 11 or 12, and wherein, the variation tendency of the heavy information of described the first wooden fork is contrary with the variation tendency of the heavy information of described the second wooden fork.
- 14. according to claim 10 to the device described in any one in 13, and wherein, this device also comprises:Adjusting device, while meeting the second predetermined condition, is reduced to predetermined wooden fork by heavy described the first wooden fork information and is heavily worth for the variation of comparing historical primary importance information when the current described primary importance information receiving.
- 15. 1 kinds of base stations, comprise the device as described in claim 8 to 14 at least one.
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| WO2020107141A1 (en) * | 2018-11-26 | 2020-06-04 | 华为技术有限公司 | Positioning method and device |
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