CN104540169B - The collocation method and communicator of measurement gap - Google Patents
The collocation method and communicator of measurement gap Download PDFInfo
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- CN104540169B CN104540169B CN201510016341.2A CN201510016341A CN104540169B CN 104540169 B CN104540169 B CN 104540169B CN 201510016341 A CN201510016341 A CN 201510016341A CN 104540169 B CN104540169 B CN 104540169B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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Abstract
The invention discloses the collocation methods and communicator of a kind of measurement gap, belong to wireless communication technology field.Method includes：Gap offset is determined according to the location reference signals PRS information for the cell for participating in positioning or determines to obtain the information of gap offset according to the frequency information of the cell of the PRS information or participation positioning for the cell for participating in positioning；By gap offset or for obtaining the base station that the information of gap offset is sent to serving cell.Base station receives the gap offset of terminal or centre of location transmission or the information for obtaining gap offset；Gap configuration information is sent to terminal by base station, and gap configuration information includes the gap offset received or according to for obtaining the gap offset that the information of gap offset determines.The present invention determines the scheme of gap offset by the PRS information of the cell according to participation positioning, the probability that terminal detects the PRS for the cell for participating in positioning in measurement gap is improved, so as to improve the detection performance of PRS.
Description
Technical field
The present invention relates to wireless communication technology field, the collocation method and communicator of more particularly to a kind of measurement gap.
Background technology
OTDOA (Observed Time Difference Of Arrival observe reaching time-difference) is a kind of common
Location technology, principle are PRS (the Positioning Reference that terminal is sent by measuring three or more different base stations
Signal, location reference signals) reach time difference RSTD (Reference Signal Time Difference, with reference to letter
Number time difference), to obtain the difference of the distance of different base station incoming terminal, so as to achieve the purpose that positioning.
In above-mentioned position fixing process, it is necessary to obtain positioning assistance data from the centre of location when terminal carries out different-frequency measure, and
Gap configuration information is obtained from the base station of serving cell.Wherein, positioning assistance data include measurement cell mark (or participate in
The alien-frequency district of positioning) and measurement cell PRS information, PRS information include I-PRS (location reference signals index) and n-PRS
(length of localization time slot), terminal can determine the localization time slot (occasion) of measurement cell by PRS information.Gap configures
Information includes gap pattern (gap pattern) and gap offset (gapOffset), terminal can by gap configuration information
Determine the measurement gap of different-frequency measure.Also it is so that surveying in order to which terminal is made to detect the PRS of measurement cell in measurement gap
Amount gap can cover localization time slot, and base station needs to configure correct gap configuration information.
In the prior art, gap offset unreasonable allocation can make terminal can't detect measurement cell in measurement gap
PRS, influence the detection performance of PRS.
The content of the invention
An embodiment of the present invention provides the collocation method and communicator of a kind of measurement gap, the detection of PRS can be improved
Performance.An embodiment of the present invention provides following technical solutions：
A kind of collocation method of measurement gap, the described method includes：
Gap offset is determined or according to the ginseng according to the location reference signals PRS information for the cell for participating in positioning
The frequency information of the cell positioned with the PRS information of the cell of positioning or the participation determines to obtain the letter of gap offset
Breath；
By the gap offset or the base station that serving cell is sent to for the information that obtains gap offset.
A kind of collocation method of measurement gap, the described method includes：
Base station receives the gap offset of terminal or centre of location transmission or the information for obtaining gap offset；
Gap configuration information is sent to terminal by the base station, and the gap configuration information includes the gap received
Offset or according to described for obtaining the gap offset that the information of gap offset determines.
A kind of communicator, described device include：
Determination unit, for according to participate in positioning cell location reference signals PRS information determine gap offset or
Frequency information for the PRS information according to the cell for participating in positioning or the cell for participating in positioning determines to obtain
The information of gap offset；
Notification unit, for the gap offset or the information for being used to obtain gap offset to be sent to service
The base station of cell is sent to the base station of serving cell.
A kind of communicator, including：
Receiving unit, for the gap offset for receiving terminal or centre of location transmission or for obtaining gap offset
Information；
Transmitting element, for gap configuration information to be sent to terminal, the gap configuration information includes described receive
Gap offset or according to described for obtaining the gap offset that the information of gap offset determines.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：By according to the cell for participating in positioning
PRS information determines the scheme of gap offset, improves the PRS that terminal detects in measurement gap the cell for participating in positioning
Probability, so as to improve the detection performance of PRS.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the present invention
Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1-a are a kind of collocation method flow charts of measurement gap provided in an embodiment of the present invention；
Fig. 1-b are the collocation method flow charts of another measurement gap provided in an embodiment of the present invention；
Fig. 2 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Fig. 3 is localization time slot provided in an embodiment of the present invention and measurement gap position view；
Fig. 4 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Fig. 5 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Fig. 6 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Fig. 7 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Fig. 8 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Fig. 9 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Figure 10 is the collocation method flow chart of another measurement gap provided in an embodiment of the present invention；
Figure 11-a are a kind of communication apparatus structure schematic diagrames provided in an embodiment of the present invention；
Figure 11-b are another communication apparatus structure schematic diagrames provided in an embodiment of the present invention；
Figure 12-a are a kind of communication apparatus structure schematic diagrames provided in an embodiment of the present invention；
Figure 12-b are another communication apparatus structure schematic diagrames provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Referring to Fig. 1-a, present embodiments provide a kind of collocation method of measurement gap, the collocation method can by terminal or
The centre of location performs, including：
S11：Gap offset is determined or according to the cell for participating in positioning according to the PRS information for the cell for participating in positioning
PRS information or participate in the frequency information of cell of positioning and determine to obtain the information of gap offset；
S12：By gap offset or for obtaining the base station that the information of gap offset is sent to serving cell.
The present embodiment determines the scheme of gap offset by the PRS information of the cell according to participation positioning, improves end
End detects the probability of the PRS for the cell for participating in positioning in measurement gap, so as to improve the detection performance of PRS.
Referring to Fig. 1-b, the collocation method of another measurement gap is present embodiments provided, which can be by terminal
Or the centre of location performs, which includes：
S21：According to the PRS information for the cell for participating in positioning, gap offset is determined；
Wherein, during different-frequency measure, the cell for participating in positioning refers to the alien-frequency district for participating in positioning or measurement cell.
S22：Gap offset is sent to the base station of serving cell.
Wherein, gap offset, which is additionally operable to instruction base station terminal, needs to carry out different-frequency measure.
The present embodiment is determined gap offset, gap offset is led to by the PRS information according to the cell for participating in positioning
Know the base station of serving cell, the scheme of this PRS configuration gap offsets according to the cell for participating in positioning improves terminal and exists
The probability of the PRS for the cell for participating in positioning is detected in measurement gap, so as to improve the detection performance of PRS.
Referring to Fig. 2, the collocation method of another measurement gap is present embodiments provided, this method centre of location or terminal will
The gap offset determined is sent to base station, including：
100：The positioning assistance data of RSTD different-frequency measures is sent to terminal by the centre of location.
So-called RSTD different-frequency measures refer to that the terminal-pair measurement cell different from serving cell frequency carries out RSTD measurements.
Wherein, the positioning assistance data of RSTD different-frequency measures includes the mark of measurement cell and the PRS information of measurement cell etc..PRS believes
Breath includes I-PRS (location reference signals index) and n-PRS (length of localization time slot), for example, the value of n-PRS can for 1,2,4,
6。
101：Terminal or the centre of location determine gap offset according to the PRS information of measurement cell.
This step can include：
101a：Determine I-PRS corresponding PRS cycles and PRS offsets.
It for example, can be according to PRS sub-frame configurations table (the Positioning reference signal shown in table 1
Subframe configuration), determine I-PRS corresponding PRS cycles and PRS offsets.
Table 1
101b：It is deviated according to PRS cycles and PRS, determines the starting point of localization time slot (occasion).
Localization time slot first PRS cycle the corresponding system frame number SFN=FLOOR of start position (PRS offset/
10), the corresponding subframe numbers subframe=PRS offsets mod 10 of start position, localization time slot is in the starting point position in other PRS cycles
Corresponding System Frame Number is put, the number of sub frames between System Frame Number corresponding with the start position in first PRS cycle differs this its
The number of sub frames that he includes in the PRS cycles, localization time slot is in the corresponding subframe numbers of start position and first PRS in other PRS cycles
Cycle it is identical.For example, during I-PRS=1 subframe, PRS offsets are 1 subframes, and the PRS cycles are 160 subframes, localization time slot
Starting point in the subframes such as (System Frame Number 0, subframe numbers 1), (System Frame Number 16, subframe numbers 1), (System Frame Number 32, subframe numbers 1) ...
On.
101c：Son is continued according to the starting point of localization time slot, the length n-PRS of localization time slot and default measurement gap
The quantity of frame determines the starting point of measurement gap.
According to the starting point of localization time slot and the length n-PRS of localization time slot, the scope of localization time slot is determined；According to default
Cover up rule and measurement gap continue the quantity of subframe, determine the scope of measurement gap, and by the starting point of the scope of measurement gap
As the starting point of measurement gap, wherein, cover up rule includes localization time slot or measurement gap for measurement gap duration ranges are interior
Front and rear each reserved subframe including localization time slot and localization time slot in duration ranges, to reserve the switching of different-frequency measure
Time, for example, the switching time of different-frequency measure<0.5ms.
Wherein, the quantity that default measurement gap continues subframe can be 6 subframes.By taking LTE system as an example, a subframe
Including 2 time slots (slot), each time slot 0.5ms (millisecond) a, subframe continues 1ms.
101d：Gap offset can be determined according to the starting point of measurement gap.
According to correspondence existing for the starting point of measurement gap and gap offset (gapOffset), clearance offsets are determined
Amount.Wherein, the starting point of measurement gap meets following correspondence with gap offset gapOffset：
SFN mod T=FLOOR (gapOffset/10),
Subframe=gapOffset mod 10,
Wherein, SFN is the corresponding System Frame Number of starting point of measurement gap, and subframe is that the starting point of measurement gap is corresponding
Subframe numbers, mod represent modulo operation, and FLOOR represents downward rounding, T=MGRP/10.MGRP(Measurement Gap
Repetition Period, measurement gap repetition period) represent the gap pattern corresponding measurement gap repetition period, for example,
0 and 1 corresponding MGRP of gap pattern is respectively 40ms and 80ms.
In addition, during specific implementation, gap offset specifically can use 5bit (position) to indicate, 5bit represents that maximum magnitude 0 arrives
31 subframes, since the cycle of measurement gap is 30 subframes, 0 to 29 can be included by detecting the scope of offset, be reserved
30 and 31.
It is exemplified below and how to determine gap offset.Assuming that measurement cell I-PRS=10, n-PRS=1, terminal or
The centre of location determines the I-PRS=10 corresponding PRS cycles as 160 subframes, PRS offsets are 10 subframes, then localization time slot
The System Frame Number of starting point is 1, subframe numbers 0, and n-PRS=1 subframe of the length of known locations time slot, then localization time slot
Position as in Fig. 3 subframe numbers be shown in 0 subframe, if it is considered that before and after measurement gap needs to cover localization time slot and localization time slot
The situation of each reserved subframe, then the coverage of measurement gap share 4 kinds of situations, represent measurement gap with subframe numbers
Coverage is (6,7,8,9,0,1), (7,8,9,0,1,2), (8,9,0,1,2,3), (9,0,1,2,3,4), is measured accordingly
The corresponding System Frame Number of starting point in gap is 0, and subframe numbers are respectively 6,7,8,9, the starting point of measurement gap and gap offset
Correspondence, then gap offset value can be 6,7,8 or 9.When the PRS information for measuring cell changes, such as I-PRS=
20, i.e. the PRS cycles are 160ms, and PRS offsets are 20, and gap offset can be 16,17,18 or 19 at this time, then terminal or positioning
Updated gap offset should be notified base station by center, and base station is made to configure correct gapOffset to terminal, makes terminal herein
PRS is detected in measurement gap, improves the detection performance of PRS.
102：Gap offset is notified the base station of serving cell by terminal or the centre of location.
Preferably, a gap offset is notified base station by terminal or the centre of location.In addition, terminal or the centre of location may be used also
Multiple gap offsets are notified base station, one is therefrom selected by base station.
When the base station of serving cell receives the gap offset that terminal or the centre of location notify, the base station of serving cell is true
Determining terminal will need to carry out RSTD different-frequency measures.Alternatively, in the present embodiment, can also terminal be used to indicate by a notice
It needs to carry out RSTD different-frequency measures, at this point it is possible to which gap offset and the notice are sent to base station simultaneously.The base of serving cell
After station receives the gap offset of terminal or centre of location notice, the present embodiment further includes：
103：The gap offset received is sent to terminal by the base station of serving cell.
The base station of serving cell can send the gap configuration information of RSTD different-frequency measures, the gap configuration information to terminal
Including gap pattern and the gap offset received；
For example, 9 prescribed terminal of LTE versions carries out RSTD different-frequency measures using gap pattern 0, therefore, in the present embodiment,
It base station can also be by the gap style configuration in the configuration information of gap into gap pattern 0.
The gap offset received is sent to terminal by the base station of serving cell, because terminal is according to the base of serving cell
The gap configuration information that station issues carries out RSTD different-frequency measures, and the gap in the gap configuration information that the present embodiment base station issues is inclined
Shifting amount is that the gap offset that reference terminal reports determines.
104：Terminal receives gap configuration information, and according to mark corresponding measurement of the gap configuration information to measurement cell
The PRS of cell carries out RSTD different-frequency measures, and determines the position of itself according to the RSTD different-frequency measure results of measurement cell.
Wherein, this step is technological means usual in OTDOA location technologies, only sketches its realization process here：Terminal
The starting point of measurement gap is calculated in gap offset in the configuration information of gap, since the starting point of measurement gap,
Measurement gap continues in the range of subframe, and RSTD different-frequency measures are carried out to the PRS of all measurement cells, and according to each measurement cell
RSTD different-frequency measure results determine the position of itself.Wherein, " gap offset in the configuration information of gap is calculated
The starting point of measurement gap ", which may be employed, represents that the starting point of measurement gap is corresponding with gap offset gapOffset in step 101d
The formula of relation obtains.
Gap offset is notified to take by the present embodiment by determining gap offset according to the PRS information of measurement cell
The base station for cell of being engaged in, this PRS information according to measurement cell determine the scheme of gap offset, improve terminal between measurement
The probability of the PRS of measurement cell is detected in gap, so as to improve the detection performance of PRS.Meanwhile according to measurement cell
When PRS information determines gap offset, ensure that measurement gap can cover localization time slot, so that it is guaranteed that terminal is in measurement gap
It is able to detect that the PRS of measurement cell, greatly increases the detection performance of PRS.
Referring to Fig. 4, the collocation method of another measurement gap is present embodiments provided, this method passes through OAM
(Operation Administration Maintenance, operation management maintainance) system carries out the gap offset of base station
Configuration, including：
201：OAM systems configure the gap offset in the gap configuration information of the base station of serving cell；
Further, OAM systems are according to the frequency for measuring cell, to the gap offset in the gap configuration information of base station
It is configured, measures the gap offset difference that the frequency of cell is different, then configures.In addition, 9 prescribed terminal of LTE versions uses
Gap pattern 0 carries out RSTD different-frequency measures, and therefore, in the present embodiment, OAM systems can be by the gap in the configuration information of gap
Style configuration is into gap pattern 0.
Optionally, before step 201, the present embodiment further includes：
200a：The positioning assistance data of RSTD different-frequency measures is sent to terminal by the centre of location；
Wherein, the positioning assistance data of RSTD different-frequency measures includes the mark of measurement cell and measures the PRS information of cell
Deng.When measuring the frequency difference of cell and serving cell, positioning assistance data further includes the frequency of measurement cell.PRS information
Including I-PRS and n-PRS, for example, the value of n-PRS can be 1,2,4,6.
200b：OAM systems determine gap offset according to the PRS information of measurement cell；
Determine that the process of spacing bias amount may be referred to step 101a-101d according to the PRS information of measurement cell, here not
It repeats again.Further, it is different to measure the frequency of cell, then gap offset difference.
Optionally, after step 201, the present embodiment further includes：
202：Gap configuration information is sent to terminal by the base station of serving cell.
When measuring the frequency difference of cell, base station receives the acquisition gap configuration request that terminal is sent, in request
The frequency of measurement cell is carried, the corresponding gap configuration information of the frequency of the measurement cell of request is sent to terminal by base station.
203：Terminal receives and according to gap configuration information, the PRS of the corresponding measurement cell of the mark of measurement cell is carried out
RSTD different-frequency measures, and the position of itself is determined according to the RSTD different-frequency measure results of each measurement cell.
This step may be referred to step 104, and which is not described herein again.
By determining gap offset according to the PRS information of measurement cell in the present embodiment, terminal is improved between measurement
The probability of the PRS of measurement cell is detected in gap, so as to improve the detection performance of PRS.Meanwhile according to measurement cell
When PRS information determines gap offset, ensure that measurement gap can cover localization time slot, so that it is guaranteed that terminal is in measurement gap
It is able to detect that the PRS of measurement cell, greatly increases the detection performance of PRS.
In addition, base station uses the gap offset of OAM system configurations, it additional need not signal, reduce signaling
Expense and positioning time delay；Meanwhile compared with base station using the gap offset made an appointment, the present embodiment can pass through OAM spirits
Configuration gap offset living.
Referring to Fig. 5, the collocation method of another measurement gap is present embodiments provided, the collocation method is by terminal or positioning
Center performs, including：
S31：According to the frequency information of the PRS information for the cell for participating in positioning or the cell for participating in positioning, determine to obtain
Take the information of gap offset；
S32：By for obtaining the base station of the Information Notification Services cell of gap offset, make base station according between acquisition
The information of gap offset determines gap offset.
The present embodiment by according to participate in positioning cell PRS information, determine to obtain the information of gap offset,
By for obtaining the base station of the Information Notification Services cell of gap offset, make base station according to the letter for being used to obtain gap offset
Breath determines gap offset, and the scheme of this PRS configuration gap offsets according to the cell for participating in positioning improves terminal and exists
The probability of the PRS for the cell for participating in positioning is detected in measurement gap, so as to improve the detection performance of PRS.In addition, compared with
By the collocation method of the base station of gap offset notice serving cell, the requirement to terminal computing capability is reduced.
Referring to Fig. 6, the collocation method of another measurement gap is present embodiments provided, this method positions small according to participation
The PRS information in area determines to obtain the information of gap offset, including：
300：The positioning assistance data of different-frequency measure is sent to terminal by the centre of location；
Wherein, the positioning assistance data of different-frequency measure includes mark and measurement cell PRS information of measurement cell etc..Work as survey
When amount cell and the frequency difference of serving cell, positioning assistance data further includes the frequency of measurement cell.PRS information includes I-
PRS and n-PRS, for example, the value of n-PRS can be 1,2,4,6.
301：Terminal or the centre of location determine to obtain gap offset according to the PRS information for the cell for participating in positioning
Information；
Wherein, which includes the starting point and length of localization time slot；
Alternatively, the information for being used to obtain gap offset includes the PRS information for participating in whole cells of positioning, it is all small
Area includes co-frequency cell and alien-frequency district；
Alternatively, the information for being used to obtain gap offset includes the PRS information for participating in the alien-frequency district of positioning；
Wherein, PRS information includes I-PRS (location reference signals index) and n-PRS (length of localization time slot), n-PRS
Value can be 1,2,4,6.
When this is used to obtain starting point and length of the information of gap offset including localization time slot, then this step can wrap
It includes：
301a：According to 36.211 standards of 3GPP TS, I-PRS corresponding PRS cycles and PRS offsets are determined；
Step 301a is identical with step 101a, and which is not described herein again.
301b：It is deviated according to PRS cycles and PRS, determines the starting point of localization time slot (occasion), and by localization time slot
Starting point and length n-PRS are as obtaining the information of gap offset.
Determine that the starting point of localization time slot is identical with the specific implementation process of step 101b in step 301b, it is no longer superfluous here
It states.
302：Terminal or the centre of location will be for obtaining the base station that the information of gap offset is sent to serving cell；
The base station of serving cell receives terminal or when being used to obtain the information of gap offset of centre of location transmission, clothes
The base station of business cell determines that terminal will need to carry out RSTD different-frequency measures.Alternatively, in the present embodiment, it can also be logical by one
Know that being used to indicate terminal needs to carry out RSTD different-frequency measures, at this point it is possible to which gap offset and the notice are sent to base simultaneously
It stands.After the base station of serving cell receives the information for being used to obtain gap offset that terminal or the centre of location are sent, this reality
Example is applied to further include：
303：The base station of serving cell determines gap offset according to for obtaining the information of gap offset；
1) when this be used for obtain gap offset information include participate in positioning whole cells PRS information or including
When participating in the PRS information of the alien-frequency district of positioning, first according to the PRS information for the alien-frequency district for participating in positioning, using step
The method of 301a and 301b determines the starting point and length of localization time slot, then again using step 303a and 303b method determine between
Gap offset.
2) when this is used to obtain starting point and length of the information of gap offset including localization time slot, this step is specifically wrapped
It includes：
303a：Son is continued according to the starting point of localization time slot, the length n-PRS of localization time slot and default measurement gap
The quantity of frame determines the starting point of measurement gap；
Step 303a is identical with step 101c, and which is not described herein again for detailed process.
303b：Base station can determine gap offset according to the starting point of measurement gap.
Step 303b is identical with step 101d, and which is not described herein again for detailed process.
304：The gap configuration information of RSTD different-frequency measures is sent to terminal by the base station of serving cell, which matches somebody with somebody confidence
Breath includes gap pattern and gap offset；
This step refers to step 103, and which is not described herein again.
305：Terminal receives and according to gap configuration information, the PRS of the corresponding measurement cell of the mark of measurement cell is carried out
RSTD different-frequency measures, and the position of itself is determined according to the RSTD different-frequency measure results of each measurement cell.
Wherein, this step is technological means usual in OTDOA location technologies, only sketches its realization process here：Terminal
The starting point of measurement gap is calculated in gap offset in the configuration information of gap, since the starting point of measurement gap,
Measurement gap continues in the range of subframe, and different-frequency measure is carried out to the location reference signals of all measurement cells, and according to each small
The different-frequency measure result in area determines the position of itself.Wherein, " survey is calculated in the gap offset in the configuration information of gap
The specific starting point that the expression measurement gap in step 101d may be employed of the starting point in amount gap " and gap offset gapOffset
The formula of correspondence is calculated.
The present embodiment by according to participate in positioning cell PRS information, determine to obtain the information of gap offset,
By for obtaining the base station of the Information Notification Services cell of gap offset, make base station according to the letter for being used to obtain gap offset
Calculated gap offset is ceased, the scheme of this PRS configuration gap offsets according to the cell for participating in positioning improves terminal and exists
The probability of the PRS for the cell for participating in positioning is detected in measurement gap, so as to improve the detection performance of PRS.Meanwhile in basis
During for obtaining the information calculated gap offset of gap offset, ensure that measurement gap can cover localization time slot, so as to really
The PRS that terminal is able to detect that the cell for participating in positioning in measurement gap is protected, greatly increases the detection performance of PRS.
Referring to Fig. 7, the collocation method of another measurement gap is present embodiments provided, this method positions small according to participation
The frequency information in area determines to obtain the information of gap offset, including：
401：The base station of the centre of location and serving cell is made an appointment gap offset, and base station will be in the configuration information of gap
Gap offset is configured to the gap offset made an appointment；Alternatively, OAM systems are to the gap in the gap configuration information of base station
Offset is configured；
Wherein, it is different to measure the frequency of cell, then gap offset difference.
402：The positioning assistance data of different-frequency measure is sent to terminal by the centre of location；
Wherein, the positioning assistance data of different-frequency measure includes mark and PRS information of measurement cell etc..When measurement cell with
During the frequency difference of serving cell, positioning assistance data further includes the frequency of measurement cell.PRS information includes I-PRS and n-
PRS, for example, the value of n-PRS can be 1,2,4,6.
403：Terminal sends the request for obtaining gap configuration information to base station, and the frequency of measurement cell is carried in the request；
404：Base station lookups gap configuration informations corresponding with the frequency of the measurement cell of terminal request, and will find
Gap configuration information is sent to terminal；
405：Terminal receives and according to gap configuration information, the PRS of the corresponding measurement cell of the mark of measurement cell is carried out
RSTD different-frequency measures, and the position of itself is determined according to the RSTD different-frequency measure results of each measurement cell.
Collocation method provided in this embodiment, when terminal different frequency measures different frequency layer, base station can be that terminal configures
Correct gap configuration information.
Referring to Fig. 8, the collocation method of another measurement gap is present embodiments provided, including：
S41：The base station of the centre of location and serving cell is made an appointment gap offset, in the configuration information of base station gap between
Gap offset is configured to the gap offset made an appointment and gap configuration information is sent to terminal；
S42：The centre of location determines the gap offset with making an appointment according to the PRS information for the cell for participating in positioning
The cell for the participation positioning matched somebody with somebody；
S43：The mark of the matched cell for participating in positioning is carried the positioning assistance data in different-frequency measure by the centre of location
In be sent to terminal, make terminal according to the gap configuration information received to it is matched participate in positioning cell carry out alien frequencies survey
Amount.
The present embodiment, according to the PRS information for the cell for participating in positioning, determines what is made an appointment with base station by the centre of location
The matched cell for participating in positioning of gap offset, the mark of the matched cell for participating in positioning is carried and is determined in different-frequency measure
Position auxiliary data in be sent to terminal, make terminal according to the gap offset made an appointment to it is matched participate in position cell into
Row different-frequency measure, this PRS according to the cell for participating in positioning determine that matching participates in the scheme of the cell of positioning, improve terminal
The probability of the PRS for the cell for participating in positioning is detected in measurement gap, so as to improve the detection performance of PRS.
In addition, base station additional need not be signaled using the gap offset made an appointment, be reduced signaling consumption
With positioning time delay.
Referring to Fig. 9, the collocation method of another measurement gap is present embodiments provided, including：
501：Make an appointment gap offset gapOffset for the base station of the centre of location and serving cell；
502：The centre of location determines to match with the gapOffset to make an appointment according to the PRS information for the cell for participating in positioning
Participation positioning cell, and by it is matched participate in positioning cell mark carry in the positioning assistance data of different-frequency measure
Send terminal；
Wherein, the positioning assistance data of different-frequency measure further includes mark and PRS information of all cells for participating in positioning etc.,
PRS information includes I-PRS and n-PRS, for example, the value of n-PRS can be 1,2,4,6.Then the centre of location determines that matched participation is fixed
The cell of position specifically includes：
502a, 502b, 502c and 502d are identical with step 101a, 101b, 101c and 101d, and which is not described herein again.
502e：The centre of location is matched by the cell intermediate gap offset and the gap offset made an appointment that participate in positioning
Cell is as the matched cell for participating in positioning.
503：The gap configuration information of RSTD different-frequency measures is sent to terminal by the base station of serving cell, which matches somebody with somebody confidence
Breath includes gap pattern and gap offset；
This step refers to step 103, and which is not described herein again.
504：Terminal receives positioning assistance data and gap configuration information, according to gap configuration information to positioning assistance data
In it is matched participate in positioning cell location reference signals carry out RSTD different-frequency measures, and according to it is each matching participate in positioning
The RSTD different-frequency measure results of cell determine the position of itself.
It determines to make an appointment with base station according to the PRS information for the cell for participating in positioning by the centre of location in the present embodiment
Gap offset it is matched participate in positioning cell, by it is matched participate in positioning cell mark carry in different-frequency measure
Terminal is sent in positioning assistance data, makes terminal according to the gap offset made an appointment to the matched cell for participating in positioning
Different-frequency measure is carried out, this PRS according to the cell for participating in positioning determines that matching participates in the scheme of the cell of positioning, improves end
End detects the probability of the PRS for the cell for participating in positioning in measurement gap, so as to improve the detection performance of PRS.Definite
During the cell for the participation positioning matched somebody with somebody, ensure that measurement gap can cover localization time slot, so that it is guaranteed that terminal energy in measurement gap
It enough detects the PRS for the cell for participating in positioning, greatly increases the detection performance of PRS.
In addition, base station additional need not be signaled using the gap offset made an appointment, be reduced signaling consumption
With positioning time delay.
Referring to Figure 10, the collocation method of another measurement gap is present embodiments provided, including：
S51：Base station receives the gap offset of terminal or centre of location transmission or the information for obtaining gap offset；
S52：Gap configuration information is sent to terminal by base station, gap configuration information include the gap offset received or
According to for obtaining the gap offset that the information of gap offset determines.
Wherein, gap offset or for determining that the information of gap offset is terminal or the centre of location according to participating in positioning
The PRS information of cell determine.
Wherein, if base station receives gap offset, confirm that terminal needs to carry out the survey of reference signal time difference RSTD alien frequencies
Amount.
Further, when receiving gap offset, also receiving terminal needs to carry out reference signal time difference RSTD for base station
The notice of different-frequency measure.
Present embodiments provide a kind of gap offset that base station sends according to terminal or the centre of location or between acquisition
The method that the information of gap offset measures gap configuration, and gap offset is determined according to the PRS information of measurement cell
Scheme, improve terminal detected in measurement gap measurement cell PRS probability, so as to improve the detection of PRS
Energy.
Referring to Figure 11-a, a kind of communicator of the present embodiment, including：
Determination unit 601, for determining clearance offsets according to the location reference signals PRS information for the cell for participating in positioning
It measures or is determined for the frequency information of the PRS information according to the cell for participating in positioning or the cell for participating in positioning between being used to obtain
The information of gap offset；
Notification unit 602, for being sent to serving cell by gap offset or for obtaining the information of gap offset
Base station be sent to the base station of serving cell.
Wherein, participating in the PRS information of the cell of positioning includes participating in the location reference signals index of the alien-frequency district of positioning
The length n-PRS of I-PRS and localization time slot,
Referring to Figure 11-b, determination unit 601, including：
PRS cycles and offset determination subelement 601a, for determining I-PRS corresponding PRS cycles and PRS offsets；
Localization time slot starting point determination subelement 601b, for according to PRS cycles and PRS offsets, determining rising for localization time slot
Point；
Measurement gap starting point determination subelement 601c, for according to localization time slot starting point, the length n- of localization time slot
PRS and default measurement gap continue the quantity of subframe, determine the starting point of measurement gap；
And gap offset determination subelement 601d, for the starting point according to measurement gap, determine gap offset.
Communicator provided in this embodiment is specifically as follows terminal or the centre of location, and specific implementation process refers to method
Embodiment, which is not described herein again.
The present embodiment determines the scheme of gap offset according to the PRS information of measurement cell, improves terminal between measurement
The probability of the PRS of measurement cell is detected in gap, so as to improve the detection performance of PRS.
Referring to Figure 12-a, another communicator is present embodiments provided, including：
Receiving unit 701, for the gap offset for receiving terminal or centre of location transmission or for obtaining clearance offsets
The information of amount；
Transmitting element 702, for gap configuration information to be sent to terminal, gap configuration information includes the gap received
Offset or according to for obtaining the gap offset that the information of gap offset determines.
Referring to Figure 12-b, which further includes determination unit 703, when receiving gap offset for receiving unit,
It needs to carry out reference signal time difference RSTD different-frequency measures according to confirmation terminal.
Further, receiving unit 701, which is additionally operable to reception terminal, needs to carry out reference signal time difference RSTD different-frequency measures
Notice.
Communicator provided in this embodiment is specifically as follows base station, and specific implementation process refers to embodiment of the method, this
In repeat no more.
The present embodiment determines the scheme of gap offset according to the PRS information of measurement cell, improves terminal between measurement
The probability of the PRS of measurement cell is detected in gap, so as to improve the detection performance of PRS.
Above example provide technical solution in all or part of content can be realized by software programming, software
Program storage is in the storage medium that can be read, and storage medium is for example：Hard disk, CD or floppy disk in computer.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention principle it
Interior, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of collocation method of measurement gap, it is characterised in that including：
Base station receives the information for being used to obtain gap offset that terminal is sent, described to be for obtaining the information of gap offset
The terminal carries out the location reference signals of the cell of the participation positioning of reference signal time difference RSTD different-frequency measures as needed
PRS information determines, described to be used to indicate the terminal for obtaining the information of gap offset and need to carry out RSTD different-frequency measures,
And for determining gap offset；The PRS information of the cell for participating in positioning includes participating in determining for the alien-frequency district of positioning
The length n-PRS of position reference signal index I-PRS and localization time slot；It is described to include positioning for obtaining the information of gap offset
The starting point of time slot and the length of localization time slot；
Gap configuration information is sent to the terminal by the base station, and the gap configuration information includes being used to obtain according to described
The gap offset and gap pattern that the information of gap offset determines.
2. a kind of communicator, which is characterized in that including：
Receiving unit, for receiving the information that terminal is used to obtain gap offset；The letter for being used to obtain gap offset
Breath is the positioning reference of the cell for the participation positioning that the terminal carries out reference signal time difference RSTD different-frequency measures as needed
Signal PRS information determines, described to be used to indicate the terminal for obtaining the information of gap offset and need to carry out RSTD alien frequencies
It measures and for determining gap offset；The PRS information of the cell for participating in positioning includes participating in the alien-frequency district of positioning
Location reference signals index I-PRS and localization time slot length n-PRS；It is described to include for obtaining the information of gap offset
The starting point of localization time slot and the length of localization time slot；
Transmitting element, for gap configuration information to be sent to the terminal, the gap configuration information is included according to the use
In obtaining the gap offset that determines of information of gap offset and gap pattern.
3. a kind of collocation method of measurement gap, which is characterized in that the described method includes：
Terminal determines to obtain the information of gap offset according to the location reference signals PRS information for the cell for participating in positioning,
It is described to be used to indicate the terminal for the information that obtains gap offset and need to carry out reference signal time difference RSTD alien frequencies to survey
It measures and for determining gap offset；The PRS information of the cell for participating in positioning includes participating in the alien-frequency district of positioning
Location reference signals index the length n-PRS of I-PRS and localization time slot；It is described to include determining for obtaining the information of gap offset
The starting point of digit time slot and the length of localization time slot；
Information of the terminal by described for obtaining gap offset is sent to the base station of serving cell；
The terminal receives the gap configuration information that the base station is sent, and the gap configuration information includes the gap offset
With gap pattern.
4. according to the method described in claim 3, it is characterized in that, the PRS information according to the cell for participating in positioning, determines
For obtaining the information of gap offset, including：
Determine the I-PRS corresponding PRS cycles and PRS offsets；
Deviated according to the PRS cycles and the PRS, determine the starting point of localization time slot, and by the starting point of the localization time slot and
The length n-PRS of the localization time slot is as the information for being used to obtain gap offset.
5. a kind of terminal, which is characterized in that the terminal includes：
Determination unit, for determining to obtain clearance offsets according to the location reference signals PRS information for the cell for participating in positioning
The information of amount；The information for being used to obtain gap offset is that the terminal carries out reference signal time difference RSTD as needed
The location reference signals PRS information of cell of the participation positioning of different-frequency measure determines, described for obtaining the letter of gap offset
Breath, which is used to indicate the terminal, to be needed to carry out RSTD different-frequency measures and for determining gap offset；It is described to participate in what is positioned
The PRS information of cell includes participating in the location reference signals index I-PRS of the alien-frequency district of the positioning and length n- of localization time slot
PRS；The length of the starting point and localization time slot of the information for being used to obtain gap offset including localization time slot；
Notification unit, for obtaining the base station that the information of gap offset is sent to serving cell by described；
Receiving unit, for receiving the gap configuration information that the base station is sent, the gap configuration information includes the gap
Offset and gap pattern.
6. terminal according to claim 5, which is characterized in that the determination unit, including：
PRS cycles and offset determination subelement, for determining the I-PRS corresponding PRS cycles and PRS offsets；
Localization time slot starting point determination subelement, for according to the PRS cycles and PRS offsets, determining rising for localization time slot
Point；
Measurement gap starting point determination subelement, for according to the localization time slot starting point, the length n- of the localization time slot
PRS and default measurement gap continue the quantity of subframe, determine the starting point of the measurement gap；
And gap offset determination subelement, for the starting point according to the measurement gap, determine the gap offset.
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| CN109845173B (en) * | 2016-08-12 | 2021-09-07 | 创新技术实验室株式会社 | Method and apparatus for transmitting/receiving positioning reference signal in wireless communication system |
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