CN106358153A - Positioning reference signal transmitting method and device - Google Patents
Positioning reference signal transmitting method and device Download PDFInfo
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- CN106358153A CN106358153A CN201510423262.3A CN201510423262A CN106358153A CN 106358153 A CN106358153 A CN 106358153A CN 201510423262 A CN201510423262 A CN 201510423262A CN 106358153 A CN106358153 A CN 106358153A
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- descending sub
- sub frame
- pilot pattern
- positioning
- positioning pilot
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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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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention provides a positioning reference signal transmitting method and device; N continuous downlink subframes are assigned to transmit a positioning reference signal pattern, and positioning reference signal patterns transmitted by using the downlink subframes are assigned, wherein the positioning reference signal pattern transmitted via by the downlink subframe 1 is the same as a positioning reference signal pattern in LTE (long-term evolution R9), the positioning reference signal pattern transmitted by the downlink subframe I is one obtained by shifting each PRS (positioning reference signal) of the positioning reference signal pattern transmitted by the downlink subframe i-1 by one RE (resource example), N is an integer greater than 1, and i is an integer greater than 1 but less than N; a terminal is informed of positions of the assigned N continuous downlink subframes transmitting the positioning reference signal patterns; the assigned downlink subframes are used to transmit the corresponding positioning reference signal patterns to the terminal, and the terminal is enabled to perform positioning according to the positioning reference signal patterns in the corresponding downlink subframes. The positioning reference signal transmitting method and device according to the scheme are applicable to indoor densely-deployed scenes, and allows reduced jamming between different indoor base stations.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of location pilot sending method and device.
Background technology
The otdoa targeting scheme based on location pilot is introduced in Long Term Evolution (lte) rel-9,
Namely base station sends auxiliary positioning pilot tone, and terminal is by measuring the location pilot that multiple cells send Lai really
Network is reported, the scene of main application is the Position Design of outdoor macro cell behind settled front geographical position,
And indoor positioning has bigger using value.
Because indoor communication environments belong to scattering compared with horn of plenty, frequency selectivity is higher, therefore, for
The density of location pilot will further enhance, and in addition indoor deployment base station density is bigger, for avoid mutual it
Between interference it is desirable to can to use orthogonal guide frequency number more.
Location pilot in lte r9 is configured in base station send in the descending sub frame send detection signal, base
Stand and notify the configuration index i of location pilotprs, the wherein location pilot cycle is 160ms-1280ms.Positioning
Pilot tone is in nprsSend in individual continuous descending sub frame, wherein, iprsIt is the parameter of high-rise configuration, positioning is led
The bandwidth of frequency and frequency domain position are also high-level signaling configuration, and cell-level frequency shift (FS) is 6 diverse locations,
Namely the location pilot of 6 adjacent cells will not be overlapping on frequency domain.
Referring to Fig. 1, Fig. 1 is positioning pilot pattern schematic diagram in existing realization.In Fig. 1, broadcast channel is with 1
Or pilot frequency design schematic diagram when 2 port transmission.The feature of this pilot tone is that terminal can detect at most
The location pilot of 6 cells, search complexity is low, and in synchronization system, performance and preferable measurement result connect
Closely.
But indoors under the scene of rich scattering, the inaccurate problem of positioning can be brought using this pilot tone；Separately
The outer density due to indoor deployment base station is big, and the reuse factor of this pilot tone only has 6, that is, can have 6
Plant the change in location on frequency domain, the interference between indoor different base station is larger.
Content of the invention
In view of this, the application provides a kind of location pilot sending method and device, can be applied to interior
Dense deployment scene, and reduce the interference between indoor different base station.
For solving above-mentioned technical problem, the technical scheme of the application is achieved in that
A kind of location pilot sending method, the method includes:
The continuous descending sub frame of specified n is in order to send positioning pilot pattern, and specifies and sent out using each descending sub frame
The positioning pilot pattern sending, wherein, the positioning pilot pattern of the 1st descending sub frame transmission is with lte r9
Positioning pilot pattern；The positioning pilot pattern of i-th descending sub frame transmission is that the i-th -1 descending sub frame sends
One example resources re of each prs upward displacement in positioning pilot pattern；N is the integer more than 1, i
It is more than 1, and the no more than integer of n；
The position of n continuous descending sub frame of the transmission positioning pilot pattern that notice terminal is specified；
Send corresponding positioning pilot pattern using the descending sub frame specified to terminal, make terminal descending according to correspondence
In subframe, positioning pilot pattern is positioned.
A kind of location pilot dispensing device, this device includes: dispensing unit and transmitting element；
Described dispensing unit, for specifying n continuous descending sub frame in order to send positioning pilot pattern, and refers to
Surely the positioning pilot pattern being sent using each descending sub frame, wherein, the positioning of the 1st descending sub frame transmission is led
Frequency pattern is with the positioning pilot pattern in lte r9；The positioning pilot pattern that i-th descending sub frame sends is the
One example resources re of each prs upward displacement in the positioning pilot pattern of i-1 descending sub frame transmission；n
It is the integer more than 1, i is more than 1, and the no more than integer of n；
Described transmitting element, for the n sending positioning pilot pattern notifying dispensing unit described in terminal to specify
The position of individual continuous descending sub frame；And send corresponding location pilot figure using the descending sub frame specified to terminal
Case, makes terminal be positioned according to positioning pilot pattern in corresponding descending sub frame.
From technical scheme above, the application is by being sent to n positioning pilot pattern of configuration
Terminal, makes terminal be positioned according to described n positioning pilot pattern, can be applied to indoor intensive portion
Administration's scene, and reduce the interference between indoor different base station.
Brief description
Fig. 1 is positioning pilot pattern schematic diagram in existing realization；
Fig. 2 is location pilot transmission flow schematic diagram in the embodiment of the present application；
Fig. 3 is to specify 3 descending sub frames to send the schematic diagram of positioning pilot pattern in the embodiment of the present application；
Fig. 4 is corresponding pilot frequency design schematic diagram when specifying 3 descending sub frames in the embodiment of the present application；
Fig. 5 is the apparatus structure schematic diagram being applied to above-mentioned technology in the embodiment of the present application.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with the accompanying drawings simultaneously
For embodiment, technical scheme is described in detail.
A kind of location pilot sending method is provided in the embodiment of the present application, is applied to the base station in indoor propagation environment
On.Base station is passed through to extend location pilot, increased the reuse factor of orthogonal guide frequency, to increase time and frequency
The density in domain, can be applied to indoor dense deployment scene, and reduce the interference between indoor different base station.
Below in conjunction with the accompanying drawings, describe location pilot transmission process in the embodiment of the present application in detail.
Referring to Fig. 2, Fig. 2 is location pilot transmission flow schematic diagram in the embodiment of the present application.Concretely comprise the following steps:
Step 201, n continuous descending sub frame is specified in order to send positioning pilot pattern in base station, and specifies use
The positioning pilot pattern that each descending sub frame sends, wherein, the positioning pilot pattern that the 1st descending sub frame sends
With the positioning pilot pattern in lte r9；The positioning pilot pattern of i-th descending sub frame transmission is the i-th -1
One example resources of each location pilot (prs) upward displacement in the positioning pilot pattern that descending sub frame sends
(re).
Base station specifies n continuous descending sub frame in order to send positioning pilot pattern, and that is, base station is specified and is being configured to
N continuous descending sub frame sending detection signal sends positioning pilot pattern.This n subframe is sending positioning
During pilot frequency design, compared with the mode sending pilot frequency design in lte r9, different only carries carrying mode
Pilot frequency design different.
Wherein, n is the integer more than 1, and i is more than 1, and the no more than integer of n.
In the embodiment of the present application it is intended that number of sub frames if be more than 6, reuse factor would not be lifted further
, it is therefore intended that number of sub frames n be integer less than 7；In actual application environment, if number of sub frames
When more than 6, reuse factor also can be lifted further, then can specify more number of sub frames.
The continuous descending sub frame of n from last subframe sending positioning pilot pattern among lte r9 next
Individual subframe starts to specify.
Referring to Fig. 3, Fig. 3 is to specify 3 descending sub frames to send showing of positioning pilot pattern in the embodiment of the present application
It is intended to.In Fig. 3, three subframes of horizontal line mark are to carry 3 descending sub frames of pilot frequency design in tle r9,
Corresponding 3 descending sub frames of legacy prs in corresponding Fig. 3；Three subframes of oblique line mark are the application
3 descending sub frames specified in embodiment, corresponding three descending sub frames of new prs in corresponding Fig. 3.
Referring to Fig. 4, Fig. 4 is that when specifying 3 descending sub frames in the embodiment of the present application, corresponding pilot frequency design is illustrated
Figure.
Positioning pilot pattern in the 1st subframe (subframe 0) is carried with lte r9 in Fig. 4
Positioning pilot pattern, carrying positioning pilot pattern in the 2nd subframe (subframe 1) is to carry the
One re of each prs upward displacement in positioning pilot pattern in 1 subframe；Carry in the 3rd subframe
Positioning pilot pattern in (subframe 2) be carry every in the positioning pilot pattern in second subframe
Individual one re of prs upward displacement.
Step 202, n continuous descending sub frame of the transmission positioning pilot pattern that this base station notice terminal is specified
Position.
Base station is specified and is sent positioning pilot pattern using that several subframe, prenotices terminal.
When terminal receives this notice, to know the position of the subframe sending positioning pilot pattern, to receive
During the subframe of transmission positioning pilot pattern, obtain corresponding positioning pilot pattern, and positioned.
The position of the subframe of positioning pilot pattern notifying in the embodiment of the present application includes: continuous n subframe
Original position, the next subframe of last subframe sending positioning pilot pattern from existing realization is opened
Begin, and number of sub-frames n.
Step 203, base station sends corresponding positioning pilot pattern using the descending sub frame specified to terminal, makes end
End is positioned according to positioning pilot pattern in corresponding descending sub frame.
The location pilot delivery plan being given in the embodiment of the present application, is extended by 1 Physical Resource Block (prb)
To n prb, so can reduce new terminal and receive complexity it is also possible to make the Time Density of pilot tone have
Very big lifting, configures more prb for increasing, to increase frequency domain density, in intensive portion in prs subframe
In the indoor scene of administration, higher reuse factor is conducive to avoiding the interference between multiple cell.
It is intended that n continuous descending sub frame sends positioning pilot pattern in the embodiment of the present application, can will reuse
Factor augmentation to 6n, such as specifies 3 descending sub frames to send positioning pilot pattern, then can be by reuse factor
Expand to 18.
Based on same inventive concept, the application also proposes a kind of location pilot dispensing device.Referring to Fig. 5, scheme
5 is the apparatus structure schematic diagram being applied to above-mentioned technology in the embodiment of the present application.This device includes: dispensing unit
501 and transmitting element 502；
Dispensing unit 501, for specifying n continuous descending sub frame in order to send positioning pilot pattern, and specifies
The positioning pilot pattern being sent using each descending sub frame, wherein, the location pilot that the 1st descending sub frame sends
Pattern is with the positioning pilot pattern in lte r9；The positioning pilot pattern of i-th descending sub frame transmission is i-th -1
One example resources re of each prs upward displacement in the positioning pilot pattern that individual descending sub frame sends；N is
Integer more than 1, i is more than 1, and the no more than integer of n；
Transmitting element 502, for notifying n of transmission positioning pilot pattern that terminal dispensing unit 501 specifies
The position of continuous descending sub frame；And send corresponding positioning pilot pattern using the descending sub frame specified to terminal,
Terminal is made to be positioned according to positioning pilot pattern in corresponding descending sub frame.
It is preferred that
Described n continuous descending sub frame is from last subframe sending positioning pilot pattern among lte r9
Next subframe starts to specify.
It is preferred that n is the integer less than 7.
The unit of above-described embodiment can be integrated in one it is also possible to be deployed separately；One can be merged into
Unit is it is also possible to be further split into multiple subelements.
In sum, the application, by n positioning pilot pattern of configuration is sent to terminal, makes terminal
Positioned according to described n positioning pilot pattern, indoor dense deployment scene can be applied to, and subtract
Interference between different base station in Shaoshi.
The location pilot delivery plan that the application provides, increased the density of time and frequency domain, Neng Gouman
The scene of the indoor rich scattering of foot, is the extension on existing location pilot, can not affect backward compatibility
The positioning performance of property terminal, and due to increased the reuse factor of orthogonal guide frequency, be conducive to multiple interiors
The positioning performance of cell, and meet the demand of indoor dense deployment.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement done etc., should be included in
Within the scope of protection of the invention.
Claims (6)
1. a kind of location pilot sending method is it is characterised in that the method includes:
The continuous descending sub frame of specified n is in order to send positioning pilot pattern, and specifies and sent out using each descending sub frame
The positioning pilot pattern sending, wherein, the positioning pilot pattern of the 1st descending sub frame transmission is with Long Term Evolution lte
Positioning pilot pattern in r9；The positioning pilot pattern of i-th descending sub frame transmission is the i-th -1 descending sub frame
One example resources re of each location pilot prs upward displacement in the positioning pilot pattern sending；N is big
In 1 integer, i is more than 1, and the no more than integer of n；
The position of n continuous descending sub frame of the transmission positioning pilot pattern that notice terminal is specified；
Send corresponding positioning pilot pattern using the descending sub frame specified to terminal, make terminal descending according to correspondence
In subframe, positioning pilot pattern is positioned.
2. method according to claim 1 it is characterised in that
Described n continuous descending sub frame is from last subframe sending positioning pilot pattern among lte r9
Next subframe starts to specify.
3. method according to claim 1 and 2 is it is characterised in that n is the integer less than 7.
4. a kind of location pilot dispensing device is it is characterised in that this device includes: dispensing unit and transmission are single
Unit；
Described dispensing unit, for specifying n continuous descending sub frame in order to send positioning pilot pattern, and refers to
Surely the positioning pilot pattern being sent using each descending sub frame, wherein, the positioning of the 1st descending sub frame transmission is led
Frequency pattern is with the positioning pilot pattern in Long Term Evolution lte r9；The location pilot of i-th descending sub frame transmission
Pattern is each the location pilot prs upward displacement one in the positioning pilot pattern that the i-th -1 descending sub frame sends
Individual example resources re；N is the integer more than 1, and i is more than 1, and the no more than integer of n；
Described transmitting element, for the n sending positioning pilot pattern notifying dispensing unit described in terminal to specify
The position of individual continuous descending sub frame；And send corresponding location pilot figure using the descending sub frame specified to terminal
Case, makes terminal be positioned according to positioning pilot pattern in corresponding descending sub frame.
5. device according to claim 4 it is characterised in that
Described n continuous descending sub frame is from last subframe sending positioning pilot pattern among lte r9
Next subframe starts to specify.
6. the device according to claim 4 or 5 is it is characterised in that n is the integer less than 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510423262.3A CN106358153A (en) | 2015-07-17 | 2015-07-17 | Positioning reference signal transmitting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510423262.3A CN106358153A (en) | 2015-07-17 | 2015-07-17 | Positioning reference signal transmitting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106358153A true CN106358153A (en) | 2017-01-25 |
Family
ID=57842710
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510423262.3A Pending CN106358153A (en) | 2015-07-17 | 2015-07-17 | Positioning reference signal transmitting method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192325A1 (en) * | 2018-04-02 | 2019-10-10 | 华为技术有限公司 | Method for positioning communication apparatus, and related apparatus |
Citations (3)
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|---|---|---|---|---|
| CN102334320A (en) * | 2009-04-27 | 2012-01-25 | 华为技术有限公司 | Positioning reference signals |
| CN102647790A (en) * | 2011-02-18 | 2012-08-22 | 华为技术有限公司 | Method and device for sending and receiving reference signal |
| WO2013173406A1 (en) * | 2012-05-15 | 2013-11-21 | Qualcomm Incorporated | Methods and apparatus for positioning reference signals in a new carrier type |
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2015
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Patent Citations (3)
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| CN102334320A (en) * | 2009-04-27 | 2012-01-25 | 华为技术有限公司 | Positioning reference signals |
| CN102647790A (en) * | 2011-02-18 | 2012-08-22 | 华为技术有限公司 | Method and device for sending and receiving reference signal |
| WO2013173406A1 (en) * | 2012-05-15 | 2013-11-21 | Qualcomm Incorporated | Methods and apparatus for positioning reference signals in a new carrier type |
Non-Patent Citations (1)
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| ERICSSON: "Text proposal for PRS pattern enhancement for indoor positioning", 《3GPP TSG RAN WG1 MEETING #81 R1- 153607》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192325A1 (en) * | 2018-04-02 | 2019-10-10 | 华为技术有限公司 | Method for positioning communication apparatus, and related apparatus |
| CN110351682A (en) * | 2018-04-02 | 2019-10-18 | 华为技术有限公司 | A kind of communication equipment localization method and relevant device |
| CN110351682B (en) * | 2018-04-02 | 2021-08-20 | 华为技术有限公司 | Communication equipment positioning method and related equipment |
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Application publication date: 20170125 |