CN103856894A - Positioning method and device based on wave beams - Google Patents
Positioning method and device based on wave beams Download PDFInfo
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- CN103856894A CN103856894A CN201210520168.6A CN201210520168A CN103856894A CN 103856894 A CN103856894 A CN 103856894A CN 201210520168 A CN201210520168 A CN 201210520168A CN 103856894 A CN103856894 A CN 103856894A
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Abstract
The invention provides a positioning method based on wave beams. The method comprises the steps that a terminal receives signaling information sent by a base station, the terminal receives a reference signal sent based on beam forming in a predefined location based service (LBS) domain according to the signaling information, and the terminal calculates the relative time delay of the reference signal and sends the relative time delay to the base station to achieve location. The positioning method based on wave beams can prevent signal interference from a neighboring cell, and then mobile terminal positioning accuracy of the base station can be improved.
Description
Technical field
The present invention relates to mobile communication technology field, particularly, the present invention relates to localization method and equipment based on wave beam.
Background technology
Wireless communication system has become a kind of main communication mode, can communicate by the global most people of which.It is more and more less that Wireless Telecom Equipment becomes, simultaneously function from strength to strength, to satisfy the demands of consumers and to improve portability and convenience.
Wavelength from 10 millimeters to 1 millimeter, frequency is called millimeter wave from 30 gigahertz (GHZ)s (GHz) to the electromagnetic wave of 300 gigahertz (GHZ)s (GHz).Utilize method that millimeter wave communicates millimetre-wave attenuator.The millimetre-wave attenuator decimillimeter wave wave guide communication two large classes of communicating by letter with millimeter wqve radio.
The advantage of millimetre-wave attenuator is: 1, available band is extremely wide, and millimere-wave band frequency bandwidth is 270 gigahertz (GHZ)s (GHz), is 10,000 times of whole short-wave band; 2, high directivity, good confidentiality; 3, disturb very little, the almost impact of static-free, cosmic interference and industrial interference, thereby communication is stable.
At present, the R&D work of 60GHz millimetre-wave attenuator just becomes increasingly active.IEEE802.11 working group formulates IEEE802.11ad standard for 60GHz millimeter wave.This technological side is to the application such as PC, digital household appliances, the ultrahigh speed wireless transmission that can realize equipment room and count Gbps.Under the actively promoting of Duo Jia in the field of business manufacturer, millimetre-wave attenuator application from now on will constantly be expanded.The problem that this technology faces is at present that components and parts cost is higher.Millimetre-wave attenuator is mainly used in realizing the non-compression high definition transmission of video in family now, if its application can extend to mobile phone and office equipment, so, along with the increase of shipment amount, its cost can significantly reduce.
Although millimetre-wave attenuator has the feature of high directivity, oxygen declines and rain declines to millimetre-wave attenuator obvious effect.Meanwhile, leaf also can have impact to millimetre-wave attenuator.In order to improve millimetre-wave attenuator distance to adapt to outdoor mobile communication, just need to adopt beam forming technique.For terminal, also need to carry out the reception of beam forming.If in receiving the signal of serving BS and the signal of adjacent base station like this on certain beam direction of terminal, the signal of serving BS will disturb the signal of adjacent base station simultaneously.As shown in Figure 1-2, although use wave beam forming technology can reduce " hearing problem ", in same time the inside, receive the different beams signal of different districts on certain wave beam of terminal equipment time, can produce each other interference.
In view of this, industry is needed badly and is solved the problems referred to above that exist in existing wireless communications, and a kind of new communication means is provided, and prevents from disturbing, to promote positioning precision.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency, particularly provides a kind of signal that can prevent neighbor cell to disturb, to promote the positioning precision of base station to mobile terminal.
The invention provides a kind of method based on positioning of beam, comprise the following steps: terminal receives the signaling information that base station sends; Described terminal, according to described signaling information, receives the reference signal sending based on wave beam forming in predefined positioning service LBS territory; And described terminal calculates the relative time delay of described reference signal, will send to described relative time delay described base station to realize location.
The present invention also provides a kind of method based on positioning of beam, comprises the following steps: base station sends signaling information to terminal; Described base station sends the reference signal based on wave beam forming to described terminal on predefined positioning service LBS territory; Described base station receives the relative time delay of the described reference signal of described terminal transmission, according to realizing location described relative time delay.
The present invention also provides a kind of mobile terminal based on positioning of beam, comprising: receiver module, and the signaling information sending for receiving base station, and according to described signaling information, receive the reference signal sending based on wave beam forming in predefined positioning service LBS territory; Computing module, the relative time delay of calculating described reference signal for described terminal; Sending module, for sending to described relative time delay described base station to realize location.
The present invention also provides a kind of base station based on positioning of beam, comprising: sending module for sending signaling information to terminal, and sends the reference signal based on wave beam forming to described terminal on predefined positioning service LBS territory; Receiver module, for receiving the relative time delay of the described reference signal that described terminal sends, according to realizing location described relative time delay.
Method based on positioning of beam provided by the invention and use mobile terminal and the base station of the method, can prevent that the signal of neighbor cell from disturbing, thereby promote the positioning precision of base station to mobile terminal.
The such scheme that the present invention proposes, very little to the change of existing system, can not affect the compatibility of system, and realize simple, efficient.
The aspect that the present invention is additional and advantage in the following description part provide, and these will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments obviously and easily and understand, wherein:
Fig. 1 shows the positioning of beam schematic diagram based on three base stations;
Fig. 2 shows the schematic diagram based on positioning of beam in whole network;
Fig. 3 shows a kind of method based on positioning of beam of end side (MS) according to an embodiment of the present invention.
Fig. 4 shows a kind of method based on positioning of beam of base station side (BS) according to an embodiment of the present invention.
Fig. 5 shows a kind of method based on positioning of beam of a wireless communication system according to an embodiment of the present invention.
Fig. 6 shows the schematic diagram in a kind of LBS territory (LBS zone) according to an embodiment of the present invention.
Fig. 7 shows the schematic diagram of the resource distribution in LBS territory according to an embodiment of the present invention.
Fig. 8 shows the schematic diagram of the concrete broadcast message in LBS territory according to an embodiment of the present invention.
Fig. 9 shows the cycle schematic diagram in LBS territory according to an embodiment of the present invention.
Figure 10 shows the schematic diagram in a kind of LBS territory (LBS zone) according to an embodiment of the present invention.
Figure 11 shows the resource in distributed LBS territory according to an embodiment of the present invention and distributes schematic diagram.
Figure 12 shows the structural representation of the mobile terminal based on positioning of beam according to an embodiment of the present invention.
Figure 13 shows the structural representation of the base station based on positioning of beam according to an embodiment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Unless those skilled in the art of the present technique are appreciated that specially statement, singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording using in specification of the present invention " comprises " and refers to and have described feature, integer, step, operation, element and/or assembly, exists or adds one or more other features, integer, step, operation, element, assembly and/or their group but do not get rid of.Should be appreciated that, when we claim element to be " connected " or " coupling " when another element, it can be directly connected or coupled to other elements, or also can have intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises arbitrary unit of listing item and all combinations that one or more is associated.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have with the present invention under the identical meaning of the general understanding of those of ordinary skill in field.Should also be understood that such as those terms that define in general dictionary and should be understood to have the meaning consistent with meaning in the context of prior art, unless and definition as here, can not explain by idealized or too formal implication.
Those skilled in the art of the present technique are appreciated that " terminal " that used both comprised the equipment only possessing without the wireless signal receiver of emissivities here, comprise again having on bidirectional communication link, carrying out the reception of two-way communication and the equipment of transmitting hardware.This equipment can comprise: tool is with or without honeycomb or other communication equipments of multi-line display; Can combine voice and the PCS Personal Communications System (PCS) of data processing, fax and/or its communication ability; Can comprise the PDA(Personal Digital Assistant) of radio frequency receiver and beep-pager, the Internet/intranet access, web browser, notepad, calendar and/or global positioning system (GPS) receiver; And/or the routine that comprises radio frequency receiver is on knee and/or palmtop computer or other equipment.Here " terminal equipment " that used can be portable, can transport, be arranged in the vehicles (aviation, sea-freight and/or land), or be suitable for and/or be configured to local runtime and/or with distribution form in the operation of any other position in the earth and/or space.Here " terminal equipment " that used can also be communication terminal, access terminals, music/video playback terminal.Here " terminal equipment " that used can also be PDA, MID and/or the mobile phone with music/video playing function etc.Here " terminal equipment " that used can also be the equipment such as intelligent television, Set Top Box.Correspondingly, " base station " or " base station equipment " is corresponding to " terminal ", " terminal equipment " communication equipment in network opposite side.
Fig. 3 shows a kind of method based on positioning of beam of end side (MS) according to an embodiment of the present invention.Said method comprising the steps of:
S101, terminal receive the signaling information that base station sends;
S102, terminal, according to signaling information, receive the reference signal sending based on wave beam forming in predefined positioning service LBS territory;
In the relative time delay of S103, terminal computing reference signal, will send to relative time delay base station to realize location.
Be that between the reference signal of adjacent cell and the targeting sequencing (preamble) of serving BS transmission, the relative time in the time that terminal receives is poor described relative time delay.In the time that terminal sends reference signal simultaneously, base station can directly obtain the time difference; When terminal is not while sending reference signal simultaneously, interval acquisition time difference regular time can be deducted in base station.
As another optional execution mode of step S103, described terminal, by sending to described relative time delay described base station to realize location, also comprises: terminal can also send to base station by the received signal strength indicator measuring (RSSI) signal or carrier-in-interference noise ratio (CINR) signal.Therefore, terminal can also be passed through RSSI or CINR signal and described relative time delay, makes base station realize location.
In step S101, the signaling information that terminal receives base station transmission comprises: terminal receives cycle and the positioning demand signaling in the positioning service LBS territory of base station transmission.
The cycle that described terminal receives the positioning service LBS territory of base station transmission is exactly the cycle in LBS territory.If system broadcasts signaling exists this parameter, showing has LBS territory in system; If system broadcasts signaling does not have this parameter, showing does not have LBS territory in system.In addition, system can be passed through the cycle in this parameter adjustment LBS territory.
Further, as a kind of execution mode, terminal receives by following any one mode or its combination the reference signal sending based on wave beam forming: with time division multiplexing (TDD) and frequency division multiplexing (FDD).
Further, as a kind of execution mode, predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
In step S102, receive the reference signal sending based on wave beam and comprise:
The starting point in terminal compute location service LBS territory is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)；(1)
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place.
The reference signal that the base station of terminal reception of neighboring cell sends on predefined positioning service LBS territory, wherein: the running time-frequency resource in positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)，(2)
B
No=mod(beamID,8)。(3)
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
Further, as the interchangeable execution mode of another kind, predefined positioning service LBS territory comprises:
Each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
Further, as a kind of execution mode, receive the reference signal sending based on wave beam and comprise:
Terminal is calculated the starting point that certain sector or community send reference signal in positioning service LBS territory:
R
startpoint=mod(cellID,12)；(4)
The reference signal that the base station of terminal reception of neighboring cell sends on predefined positioning service LBS territory, wherein: the symbol in positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)；(5)
The beam sequences number that terminal receives positioning service LBS territory by wave beam forming is:
Beam?N=mod(floor((FN-N
startpoint)/P),Beam
total)。(6)
Wherein: FN is that current frame identification, P is LBS territory, Beam
totalfor terminal forms the sum of wave beam within the scope of 360 degree.
Fig. 4 shows a kind of method based on positioning of beam of base station side (BS) according to an embodiment of the present invention.Method comprises the following steps:
S201, base station send signaling information to terminal;
S202, base station send the reference signal based on wave beam forming to terminal on predefined positioning service LBS territory;
The relative time delay of the reference signal that S203, base station receiving terminal send, according to realizing location relative time delay.
As another optional execution mode of step S203, described base station receives the relative time delay of the described reference signal of described terminal transmission, according to realizing location described relative time delay, also comprise: described base station can also receive received signal strength indicator (RSSI) signal or carrier-in-interference noise ratio (CINR) signal that described terminal sends.Therefore, described relative time delay can also and be realized the location to terminal according to described RSSI or CINR signal in base station.
In step S201, base station sends signaling information to terminal and comprises: base station sends cycle and the positioning demand signaling in positioning service LBS territory to terminal.
Further, as a kind of execution mode, base station sends the reference signal based on wave beam forming by following any one mode or its combination: with time division multiplexing (TDD) and frequency division multiplexing (FDD).
Further, as a kind of execution mode, predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
In step S202, the reference signal sending based on wave beam comprises:
The starting point in compute location service LBS territory, base station is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)，
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place;
The base station of neighbor cell sends reference signal to described terminal on predefined positioning service LBS territory, wherein: the running time-frequency resource in positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)，
B
No=mod(beamID,8)，
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
Further, as the interchangeable execution mode of another kind, predefined positioning service LBS territory comprises:
Each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
Further, as a kind of execution mode, the reference signal sending based on wave beam comprises:
The starting point that certain sector or community send reference signal in positioning service LBS territory is calculated in base station:
R
startpoint=mod(cellID,12)；
The base station of neighbor cell sends reference signal to described terminal on predefined positioning service LBS territory, wherein: the symbol in positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)。
Fig. 5 shows a kind of method based on positioning of beam of a wireless communication system according to an embodiment of the present invention.Method comprises the steps:
S301, BS periodically send the cycle in LBS territory by broadcast signaling;
The positioning demand signaling (LBS-REQ) that sends S302, BS triggers MS and goes to scan LBS territory;
S303, MS receive the broadcast signaling of the information (cycle in LBS territory) of carrying location-based service zone (LBS-zone);
The wave beam of S304, neighbor cell base station sends reference signal in the shared OFDM code element of the location-based service zone of specifying;
S305, MS are in location-based service zone (LBS-zone) scanning and measure the reference signal sending on adjacent cell wave beam;
The targeting sequencing (preamble) that S306, serving BS periodically send;
S307, MS need to measure the targeting sequencing (preamble) that serving BS sends;
S308, MS calculate relative time delay (relative delay);
S309, MS utilize LBS-RSP signaling by the report the test of the relative time delay of calculating and/or the CINR measuring or RSSI to serving BS.
Further, reference signal is for example CDMA code or other orthogonal code sequences.
Further, the cycle information in LBS territory can be from the continuous largest interval 320ms that is transmitted into.
In order to realize above-mentioned communication mode, the invention provides a kind of LBS territory (LBS zone).Fig. 6 shows the schematic diagram in a kind of LBS territory (LBS zone) according to an embodiment of the present invention.Take a 5ms frame as example, a frame can comprise 5 subframes.Each subframe can comprise: several time slots.Each time slot can comprise: 4 OFDM code elements.According to above-mentioned communication means, BS is using the corresponding running time-frequency resource of default frequency range shared 8 OFDMs (OFDM) code element of two time slots in a descending sub frame in frame as LBS territory.If comprise synchronizing signal in descending sub frame, LBS territory is the shared corresponding running time-frequency resource of default frequency range of residue OFDM symbol of removing downlink synchronous signal.The indication information that comprises place, LBS territory superframe information is sent to MS by serving BS.Each neighbor cell base station sends reference signal to MS on LBS territory.
Further, in LBS territory, can adopt the mode of a kind of or its combination in Time Division Multiplexing or frequency division multiplexing (FDM) to the reference signal in each wave beam of each community.
The reference signal transmission method in this LBS territory can comprise: the default running time-frequency resource that LBS territory is taken all orthogonal frequency division multiplex OFDM symbols by BS is divided into some groups; Each group resource can be distributed to the wave beam of corresponding each community; If this group resource comprises some time/frequency source block, corresponding running time-frequency resource can be selected according to its sector number and beam sequences number in so each community.
Fig. 7 shows the schematic diagram of the resource distribution in LBS territory according to an embodiment of the present invention.For example, LBS territory can comprise: 2 continuous time slots.Each time slot can comprise: 4 OFDM code elements.Therefore, a LBS territory can comprise: 8 OFDM code elements.Frequency domain can be divided into 3 parts.Each frequency domain part can comprise 8 running time-frequency resources.8 running time-frequency resources that each frequency domain part is comprised are given different wave beams on demand.Each sector can comprise: 8 wave beams.For example, according to above-mentioned formula (2) and (3), the resource in LBS territory is distributed.
In Fig. 7, row represent that frequency domain resource is that frequency domain resource is divided into 3 in Fig. 7, and row represents that time-domain resource is divided into time-domain resource 8 in Fig. 7. determine frequency domain resource position concrete in Fig. 7 according to sector mark (Cell ID) according to formula (2); Determine according to the wave beam ID of base station the time-domain resource position specifically taking in Fig. 7 according to formula (3). for example: sector mark is cellID=7; Wave beam mark beamID=6; So according to formula (2) and formula (3); We can know; The wave beam of this sector be designated 6 should be in Fig. 7 the 1st row, on the running time-frequency resource of the 7th row, send reference signal.
Fig. 8 shows the schematic diagram of the concrete broadcast message in LBS territory according to an embodiment of the present invention.The cycle of location-based service zone need to send in the system broadcasts signaling of serving BS, control signal, control frame head or other broadcast signalings.As a kind of execution mode, can adopt the cycle of centralized positioning service.In Fig. 8, the cycle of location-based service zone for example can be made up of 3 bits; Certainly this is an example, and concrete bit number need to be determined according to actual conditions.The cycle of location-based service zone of the present invention can be divided into 7 kinds: the first is that each frame has a location-based service zone; The second is to have a location-based service zone every 2 frames; The third is to have a location-based service zone every 4 frames; The 4th kind is to have a location-based service zone every 8 frames; The 5th kind is to have a location-based service zone every 16 frames; The 6th kind is to have a location-based service zone every 32 frames; The 7th kind is to have a location-based service zone every 64 frames.In MS side, MS receives the indication information that comprises place, LBS territory broadcast message from Serving cell.MS receives reference signal on each wave beam of the each adjacent cell location survey for this MS on LBS territory according to this indication information.For example, LBS territory is the shared corresponding running time-frequency resource of default frequency range of all OFDMs (OFDM) symbol of two continuous time slots of certain descending sub frame in frame, as LBS territory.If comprise synchronizing signal in descending sub frame, LBS territory is the shared corresponding running time-frequency resource of default frequency range of residue OFDM symbol of removing downlink synchronous signal.Further, MS according to the mode of a kind of or its combination in TDM or FDM, receives the reference signal on each wave beam of each adjacent cell on LBS territory.
Fig. 9 shows the cycle schematic diagram in LBS territory according to an embodiment of the present invention.Fig. 9 appears at frame structure schematic diagram in the location-based service zone cycle.The information that BS periodically sends location-based service zone (LBS-zone) by broadcast mode is to MS.MS obtains the cycle of location-based service zone (LBS-zone) by resolving broadcast message.MS is according to cycle of location-based service zone (LBS-zone) of resolving reference signal of each beam transmission in each neighbor cell in measurement and positioning service-domain (LBS-zone) in system.Then, MS by measurement report to serving BS (Serving BS).Further, terminal can calculate according to formula (1) starting point of location-based service zone.
In order to realize above-mentioned communication mode, the invention provides another kind of LBS territory (LBS zone).Figure 10 shows the schematic diagram in a kind of LBS territory (LBS zone) according to an embodiment of the present invention.Take a 5ms frame as example, a frame can comprise 5 subframes.Each subframe can comprise: several time slots.Each time slot can comprise: 4 OFDM code elements.According to above-mentioned communication means, the part using the corresponding running time-frequency resource of default frequency range shared 4 OFDMs (OFDM) code element of a time slot in a descending sub frame in frame as LBS territory.If comprise synchronizing signal in descending sub frame, LBS territory is the shared corresponding running time-frequency resource of default frequency range of residue OFDM symbol of removing downlink synchronous signal.Then, from three continuous frames, extract 3 above-mentioned time slots (totally 12 OFDM symbols) out as a LBS territory.Concrete distributed LBS territory as shown in figure 10.Each wave beam takies an OFDM symbol; 12 symbols can be distributed to 12 wave beams; Meanwhile, 12 resource starting points that each community occupies in LBS territory can obtain according to CELLID.Above-mentioned communication means just can be further by the same beam sequence number of different districts separately, thereby reduce and disturb better.For example, according to above-mentioned formula (4) and (5), the resource in LBS territory is distributed.Adjacent cell calculates the original position of its beam transmission according to formula (4); Simultaneously; It is CellID=10 that terminal can obtain for example sector mark; So, just can obtain according to formula (4) and Figure 10 the 11st the OFDM symbol that this sector is location-based service zone in the reference signal transmission starting point of location-based service zone; While just can obtain 12 wave beams shared OFDM symbol in location-based service zone order according to formula (5) is (2,3,4,5,6,7,8,9,10,11,0,1).Because each terminal also can form wave beam (being assumed to be 4), which beam that terminal can calculate according to formula (6) is below in which enterprising line scanning in LBS territory.
Figure 11 shows the resource in distributed LBS territory according to an embodiment of the present invention and distributes schematic diagram.Figure 11 is exactly the schematic diagram that is expressed as terminal scanning location-based service zone.In fact, suppose that at Figure 11 it is to occur continuously that three part OFDM symbols in successive frame have formed a location-based service zone while location-based service zone; At this time, suppose that terminal can form 4 wave beams; At this time each wave beam is Scan orientation service-domain successively.
Method based on positioning of beam provided by the invention can prevent that the signal of neighbor cell from disturbing, thereby promotes the positioning precision of base station to mobile terminal.
Figure 12 shows the structural representation of the mobile terminal based on positioning of beam according to an embodiment of the present invention.Mobile terminal can comprise: receiver module, and the signaling information sending for receiving base station, and according to signaling information, receive the reference signal sending based on wave beam forming in predefined positioning service LBS territory; Computing module, for the relative time delay of terminal computing reference signal; Sending module, for sending to relative time delay base station to realize location.
Further, the signaling information that terminal reception base station sends comprises: terminal receives cycle and the positioning demand signaling in the positioning service LBS territory of base station transmission.
Further, terminal receives by following any one mode or its combination the reference signal sending based on wave beam forming: with time division multiplexing and frequency division multiplexing.
Further, predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
Further, receiving the reference signal sending based on wave beam comprises:
The starting point in terminal compute location service LBS territory is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)，
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place;
The reference signal that the base station of terminal reception of neighboring cell sends on predefined positioning service LBS territory, wherein: the running time-frequency resource in positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)，
B
No=mod(beamID,8)，
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
Further, predefined positioning service LBS territory comprises: the each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
Further, receiving the reference signal sending based on wave beam comprises:
Terminal is calculated the starting point that certain sector or community send reference signal in positioning service LBS territory:
R
startpoint=mod(cellID,12)；
The reference signal that the base station of terminal reception of neighboring cell sends on predefined positioning service LBS territory, wherein: the symbol in positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)；
The beam sequences number that terminal receives positioning service LBS territory by wave beam forming is:
Beam?N=mod(floor((FN-N
startpoint)/P),Beam
total)，
Wherein: FN is current frame identification, cycle, the Beam that P is LBS territory
totalfor terminal forms the sum of wave beam within the scope of 360 degree.
Further, terminal, by sending to described relative time delay base station to realize location, also comprises: terminal can also send to base station by the received signal strength indicator measuring (RSSI) signal or carrier-in-interference noise ratio (CINR) signal.Therefore, terminal can also be passed through RSSI or CINR signal and described relative time delay, makes base station realize location.
Figure 13 shows the structural representation of the base station based on positioning of beam according to an embodiment of the present invention.Base station can comprise: sending module for sending signaling information to terminal, and sends the reference signal based on wave beam forming to terminal on predefined positioning service LBS territory; Receiver module, the relative time delay of the reference signal sending for receiving terminal, according to realizing location relative time delay.
Further, base station comprises to terminal transmission signaling information: base station sends cycle and the positioning demand signaling in positioning service LBS territory to terminal.
Further, base station sends the reference signal based on wave beam forming by following any one mode or its combination: with time division multiplexing and frequency division multiplexing.
Further, predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
Further, the reference signal sending based on wave beam comprises:
The starting point in compute location service LBS territory, base station is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)，
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place;
The reference signal that the base station of neighbor cell sends on predefined positioning service LBS territory, wherein: the running time-frequency resource in positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)，
B
No=mod(beamID,8)，
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
Further, predefined positioning service LBS territory comprises: the each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
Further, the reference signal sending based on wave beam comprises:
The starting point that certain sector or community send reference signal in positioning service LBS territory is calculated in base station:
R
startpoint=mod(cellID,12)；
The reference signal that the base station of neighbor cell sends to described terminal on predefined positioning service LBS territory, wherein: the symbol in positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)。
Further, the relative time delay of the described reference signal that base station receiving terminal sends, according to realizing location relative time delay, also comprise: received signal strength indicator (RSSI) signal or carrier-in-interference noise ratio (CINR) signal that all right receiving terminal in base station sends.Therefore, described relative time delay can also and be realized the location to terminal according to described RSSI or CINR signal in base station.
Mobile terminal and base station based on positioning of beam provided by the invention, can prevent that the signal of neighbor cell from disturbing, thereby promotes the positioning precision of base station to mobile terminal.
Those skilled in the art of the present technique are appreciated that the present invention can relate to the equipment for carrying out the one or more operation of operation described in the application.Described equipment can be required object specialized designs and manufacture, or also can comprise that the known device in all-purpose computer, described all-purpose computer have storage procedure Selection therein and activate or reconstruct.Such computer program (for example can be stored in equipment, computer) in computer-readable recording medium or be stored in and be suitable for store electrons instruction and be coupled to respectively in the medium of any type of bus, described computer-readable medium includes but not limited to the dish (comprising floppy disk, hard disk, CD, CD-ROM and magneto optical disk) of any type, memory (RAM), read-only memory (ROM), electrically programmable ROM, electric erasable ROM(EPROM immediately), electrically erasable ROM(EEPROM), flash memory, magnetic card or light card.Computer-readable recording medium comprises for for example, by the readable form storage of equipment (, computer) or any mechanism of transmission information.For example, computer-readable recording medium comprises memory (RAM) immediately, read-only memory (ROM), magnetic disk storage medium, optical storage medium, flash memory device, the signal (such as carrier wave, infrared signal, digital signal) propagated with electricity, light, sound or other form etc.
Those skilled in the art of the present technique are appreciated that the combination that can realize with computer program instructions the frame in each frame and these structure charts and/or block diagram and/or the flow graph in these structure charts and/or block diagram and/or flow graph.The processor that these computer program instructions can be offered to all-purpose computer, special purpose computer or other programmable data processing methods generates machine, thereby the instruction of carrying out by the processor of computer or other programmable data processing methods has created the method for specifying for frame or multiple frame of implementation structure figure and/or block diagram and/or flow graph.
Those skilled in the art of the present technique be appreciated that step in the various operations discussed in the present invention, method, flow process, measure, scheme can by alternately, change, combination or delete.Further, have other steps in the various operations discussed in the present invention, method, flow process, measure, scheme also can by alternately, change, reset, decompose, combination or delete.Further, of the prior art have with the present invention in step in disclosed various operations, method, flow process, measure, scheme also can by alternately, change, reset, decompose, combination or delete.
Below be only part execution mode of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (28)
1. the method based on positioning of beam, is characterized in that, comprises the following steps:
Terminal receives the signaling information that base station sends;
Described terminal, according to described signaling information, receives the reference signal sending based on wave beam forming in predefined positioning service LBS territory;
Described terminal is calculated the relative time delay of described reference signal, will send to described relative time delay described base station to realize location.
2. the method for claim 1, is characterized in that, the signaling information that terminal receives base station transmission comprises:
Described terminal receives cycle and the positioning demand signaling in the positioning service LBS territory of described base station transmission.
3. method as claimed in claim 2, is characterized in that, described predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
4. method as claimed in claim 3, is characterized in that, receives the reference signal sending based on wave beam and comprises:
The starting point that described terminal is calculated described positioning service LBS territory is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)，
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place;
The reference signal that the base station of described terminal reception of neighboring cell sends on described predefined positioning service LBS territory, wherein: the running time-frequency resource in described positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)
B
No=mod(beamID,8)
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
5. method as claimed in claim 2, is characterized in that, described predefined positioning service LBS territory comprises:
Each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
6. method as claimed in claim 5, is characterized in that, receives the reference signal sending based on wave beam and comprises:
Described terminal is calculated the starting point that certain sector or community send reference signal in positioning service LBS territory:
R
startpoint=mod(cellID,12)；
The reference signal that the base station of described terminal reception of neighboring cell sends on described predefined positioning service LBS territory, wherein: the symbol in described positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)；
The beam sequences number that described terminal receives described positioning service LBS territory by wave beam forming is:
Beam?N=mod(floor((FN-N
startpoint)/P),Beam
total)，
Wherein: FN is current frame identification, cycle, the Beam that P is LBS territory
totalfor terminal forms the sum of wave beam within the scope of 360 degree.
7. the method for claim 1, is characterized in that, described terminal will send to described base station to realize location described relative time delay, also comprises:
Described terminal also sends to described base station by the received signal strength indicator measuring (RSSI) signal or carrier-in-interference noise ratio (CINR) signal.
8. the method based on positioning of beam, is characterized in that, comprises the following steps:
Base station sends signaling information to terminal;
Described base station sends the reference signal based on wave beam forming to described terminal on predefined positioning service LBS territory;
Described base station receives the relative time delay of the described reference signal of described terminal transmission, according to realizing location described relative time delay.
9. method as claimed in claim 8, is characterized in that, base station sends signaling information to terminal and comprises:
Described base station sends cycle and the positioning demand signaling in positioning service LBS territory to described terminal.
10. method as claimed in claim 9, is characterized in that, described predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
11. methods as claimed in claim 10, is characterized in that, the reference signal sending based on wave beam comprises:
The starting point that described positioning service LBS territory is calculated in described base station is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)，
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place;
The base station of neighbor cell sends reference signal to described terminal on described predefined positioning service LBS territory, wherein: the running time-frequency resource in described positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)，
B
No=mod(beamID,8)，
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
12. methods as claimed in claim 9, is characterized in that, described predefined positioning service LBS territory comprises:
Each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
13. methods as claimed in claim 12, is characterized in that, the reference signal sending based on wave beam comprises:
The starting point that described positioning service LBS territory is calculated in described base station is:
R
startpoint=mod(cellID,12)；
The base station of neighbor cell sends reference signal to described terminal on described predefined positioning service LBS territory, wherein: the symbol in described positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)。
14. methods as claimed in claim 8, is characterized in that, described base station receives the relative time delay of the described reference signal of described terminal transmission, according to realizing location described relative time delay, also comprise:
Described base station also receives received signal strength indicator (RSSI) signal or carrier-in-interference noise ratio (CINR) signal that described terminal sends.
15. 1 kinds of mobile terminals based on positioning of beam, is characterized in that, comprising:
Receiver module, the signaling information sending for receiving base station, and according to described signaling information, receive the reference signal sending based on wave beam forming in predefined positioning service LBS territory;
Computing module, the relative time delay of calculating described reference signal for described terminal;
Sending module, for sending to described relative time delay described base station to realize location.
16. mobile terminals as claimed in claim 15, is characterized in that, the signaling information that described terminal receives base station transmission comprises:
Described terminal receives cycle and the positioning demand signaling in the positioning service LBS territory of described base station transmission.
17. mobile terminals as claimed in claim 16, is characterized in that, described predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
18. mobile terminals as claimed in claim 17, is characterized in that, receive the reference signal sending based on wave beam and comprise:
The starting point that described terminal is calculated described positioning service LBS territory is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)，
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place;
The reference signal that the base station of described terminal reception of neighboring cell sends on described predefined positioning service LBS territory, wherein: the running time-frequency resource in described positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)，
B
No=mod(beamID,8)，
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
19. mobile terminals as claimed in claim 16, is characterized in that, described predefined positioning service LBS territory comprises:
Each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
20. mobile terminals as claimed in claim 19, is characterized in that, receive the reference signal sending based on wave beam and comprise:
The starting point that described terminal is calculated described positioning service LBS territory is:
R
startpoint=mod(cellID,12)；
The reference signal that the base station of described terminal reception of neighboring cell sends on described predefined positioning service LBS territory, wherein: the symbol in described positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)；
The beam sequences number that described terminal receives described positioning service LBS territory by wave beam forming is:
Beam?N=mod(floor((FN-N
startpoint)/P),Beam
total)，
Wherein: FN is current frame identification, cycle, the Beam that P is LBS territory
totalfor terminal forms the sum of wave beam within the scope of 360 degree.
21. methods as claimed in claim 15, is characterized in that, described sending module also can be used for:
The received signal strength indicator measuring (RSSI) signal or carrier-in-interference noise ratio (CINR) signal are sent to described base station.
22. 1 kinds of base stations based on positioning of beam, is characterized in that, comprising:
Sending module for sending signaling information to terminal, and sends the reference signal based on wave beam forming to described terminal on predefined positioning service LBS territory;
Receiver module, for receiving the relative time delay of the described reference signal that described terminal sends, according to realizing location described relative time delay.
23. base stations as claimed in claim 22, is characterized in that, base station sends signaling information to terminal and comprises:
Described base station sends cycle and the positioning demand signaling in positioning service LBS territory to described terminal.
24. base stations as claimed in claim 23, is characterized in that, described predefined positioning service LBS territory comprises: the running time-frequency resource in continuous two time slots of descending sub frame in 8 orthogonal frequency division multiplex OFDM code elements, after removal downlink synchronous signal.
25. base stations as claimed in claim 24, is characterized in that, the reference signal sending based on wave beam comprises:
The starting point that described positioning service LBS territory is calculated in described base station is:
N
startpoint=mod(N
BCH+P-mod(N
BCH,P),2
n)，
Wherein: P is cycle, the N in LBS territory
bCHfor the frame number at broadcast channel place;
The reference signal that the base station of neighbor cell sends on described predefined positioning service LBS territory, wherein: the running time-frequency resource in described positioning service LBS territory is to determine according to neighbor cell sector number and beam sequences number:
F
No=mod(cellID,3)，
B
No=mod(beamID,8)，
Wherein: F
norepresent the frequency domain resource of selecting, mark, the B that cellID is sector or community
nothe time-domain resource, the beamID that are expressed as selection are the mark of base station wave beam.
26. base stations as claimed in claim 23, is characterized in that, described predefined positioning service LBS territory comprises:
Each running time-frequency resource of choosing after 12 OFDM symbols of a time slot composition, removal downlink synchronous signal from three continuous frames.
27. base stations as claimed in claim 26, is characterized in that, the reference signal sending based on wave beam comprises:
The starting point that described positioning service LBS territory is calculated in described base station is:
R
startpoint=mod(cellID,12)；
The reference signal that the base station of neighbor cell sends on described predefined positioning service LBS territory, wherein: the symbol in described positioning service LBS territory is:
S=mod(beamID+R
startpoint,12)。
28. methods as claimed in claim 22, is characterized in that, described receiver module also for:
Receive received signal strength indicator (RSSI) signal or carrier-in-interference noise ratio (CINR) signal that described terminal sends.
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