CN103068012B - A kind of method and system for controlling location reference signals transmitting - Google Patents
A kind of method and system for controlling location reference signals transmitting Download PDFInfo
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- CN103068012B CN103068012B CN201110322341.7A CN201110322341A CN103068012B CN 103068012 B CN103068012 B CN 103068012B CN 201110322341 A CN201110322341 A CN 201110322341A CN 103068012 B CN103068012 B CN 103068012B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of method of control location reference signals (PRS) transmitting, the described method includes：When needing to carry out Observable reaching time-difference (OTDOA) positioning, base station, which detects, is currently at the non-emission states of PRS, then starts to launch PRS；Or base station receives the unlatching OTDOA location signalings of location-server transmission, then start to launch PRS；When that need not carry out OTDOA positioning, base station receives the closing OTDOA location signalings of location-server transmission, then stops transmitting PRS., can be in no OTDOA positioning services by the above method and system the invention also discloses a kind of system of control PRS transmittings, stop transmitting PRS, when needing OTDOA positioning services, then start to launch PRS, the performance of base station is so improved, and saves bandwidth.
Description
Technical field
The present invention relates to the positioning skill under mobile communication system Long Term Evolution (Long Term Evolution, LTE) framework
Art, particularly relates to a kind of method and system for controlling location reference signals transmitting.
Background technology
Mobile location service plays very important effect in mobile network's operation management, and basic thought is to utilize user
The location of equipment is commenced business, it has very high commercial value, and applies species very abundant.Wherein there is generation
The application of table is for example：Virtual network operator can assist to carry out the network planning using location measurement information.Specifically, operator
It can estimate the mobility of the distribution situation of user and mobile subscriber by positioning mobile phone location in specified region, and will
It is used for the network planning.
For LTE network framework, 3 kinds of general localization methods are proposed in current 36.355 agreement, are respectively：Auxiliary is complete
Ball satellite navigation system (Assisted Global Navigation Satellite System, A-GNSS) localization method, under
Row positioning Observable reaching time-difference (Observed Time Difference Of Arrival, OTDOA) localization method and
Cell identification (Enhanced-Cell ID, E-CID) localization method of enhancing.
The basic principle of OTDOA localization methods in above-mentioned three kinds of localization methods is：User equipment (UE) measures different bases
Stand the downlink location reference signals (Positioning Reference Signals, PRS) of (eNB), obtain different base station downlink
The arrival moment (Time of Arrival, TOA) of pilot tone, i.e., so-called pilot phase measurement.According to the measurement result and combine
The coordinate of base station, using suitable location-estimation algorithm, it becomes possible to calculate the position of UE.Actual location-estimation algorithm needs
Consider multiple base stations, be usually the situation of the base station location of 3 or more than 3.In general, the number of base stations of UE measurements is got over
More, measurement accuracy is higher, and positioning performance improves more obvious.
The process in agreement for OTDOA localization methods is at present：Upper strata can be passed through by supporting the base station of OTDOA positioning services
The relevant parameter of configured PRS, the transmitting PRS reference signals in cycle, position for OTDOA.Location-server is then according on UE
The measurement result of report, the position where UE is calculated by location algorithm.
Fig. 1 is the network architecture schematic diagram of positioning function in the prior art, as shown in Figure 1, in enhancing Service Mobile Location
The heart (Enhanced Serving Mobile Location Centre, E-SMLC) is referred to as location-server 11, it is led
It is used for the position (Positioning) of management objectives equipment.Pass through LTE positions (LTE between the E-SMLC11 and UE12
Positioning Protocol, LPP) agreement carry out location related information transmission；The E-SMLC11 and base station (eNB) 13
Between by LTE positions add (LTE Positioning Protocol Annex, LPPa) agreement carry out location related information
Transmission.In the information exchanging process of OTDOA localization methods, it is divided into the positioning service and positioning service of user terminal initialization
Two kinds of flows of positioning service of device initialization, details are provided below：
Fig. 2 is the flow diagram of signalling in the positioning service of user terminal initialization in the prior art, such as Fig. 2 institutes
Show, the flow includes：
Step 201, UE actives transmitting capacity information is to E-SMLC；
Further before step 201, further include：ENB configures PRS according to the instruction on upper strata, and carries out the hair of PRS
Send.
Step 202, E-SMLC asks to position required cooperative information on OTDOA to eNB；
Specifically, the cooperative information mainly includes base station PRS relevant informations.
Step 203, eNB sends the required cooperative information of OTDOA positioning of E-SMLC requests to E-SMLC, that is, positions phase
The auxiliary data of pass；
Step 204, UE positions relevant auxiliary data to E-SMLC requests OTDOA；
Specifically, the request data of the transmission includes：The information such as the PRS configurations of base station.
Step 205, E-SMLC sends the relevant auxiliary data of OTDOA positioning of UE requests to UE；
Step 206, UE measures the eNB PRS launched, and the relevant measurement results of OTDOA are actively sent to E-
SMLC；
Step 207, E-SMLC carries out location Calculation according to measurement result, obtains the positioning result of UE.
Fig. 3 is the flow diagram of signalling in the positioning service of E-SMLC initialization in the prior art, such as Fig. 3 institutes
Show, the flow includes：
Step 301, E-SMLC asks the ability information of UE；
Further before step 301, further include：ENB configures PRS according to the instruction on upper strata, and carries out the hair of PRS
Send.
Step 302, UE transmitting capacities information is to E-SMLC；
Step 303, E-SMLC asks to position required cooperative information on OTDOA to eNB；
Specifically, the cooperative information mainly includes base station PRS relevant informations.
Step 304, eNB sends the required cooperative information of OTDOA positioning of E-SMLC requests to E-SMLC, that is, positions phase
The auxiliary data of pass；
Step 305, E-SMLC sends the relevant auxiliary data of OTDOA positioning of UE to UE；
Specifically, auxiliary data includes the PRS relevant configuration informations of base station.
Step 306, UE measures the eNB PRS launched, and the relevant measurement results of OTDOA are actively sent to E-
SMLC；
Step 307, E-SMLC carries out location Calculation according to measurement result, obtains the positioning result of UE.
In above-mentioned OTDOA localization methods, it is contemplated that UE uses public reference signal, downlink detection neighbor base station signal
Energy may be not ideal enough, therefore location reference signals (PRS) are introduced in LTE system, dedicated in OTDOA localization methods
UE measures base station signal.In order to reduce interference when UE demodulates other cell PRS, the radio bearer (RB) of configuration transmission PRS is no
Other data are transmitted again.Therefore the transmitting of PRS influences the performance of base station to varying degrees according to the configuration of PRS, meeting.Namely
Say the base station for supporting OTDOA localization methods, the transmitting and stopping to PRS location reference signals carry out all the time without control
The transmitting of PRS location reference signals.When not having OTDOA positioning services in base station so, PRS location reference signals are carried out all the time
Transmitting, bandwidth and performance to base station all produce waste.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of method for controlling location reference signals to launch and be
The problem of system, can solve location reference signals and launch all the time, the bandwidth and performance of caused waste base station.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The present invention provides a kind of method of control location reference signals (PRS) transmitting, the described method includes：
When needing to carry out Observable reaching time-difference (OTDOA) positioning, base station, which detects, is currently at the non-emitting shapes of PRS
State, then start to launch PRS；Or base station receives the unlatching OTDOA location signalings of location-server transmission, then starts to launch
PRS；
When that need not carry out OTDOA positioning, base station receives the closing OTDOA location signalings of location-server transmission,
Then stop transmitting PRS.
Wherein, it is described need carry out OTDOA positioning before, further include：Hair of the base station according to the instruction of upper layer network element to PRS
Inject capable configuration.
Wherein, described when needing to carry out OTDOA positioning, base station, which detects, is currently at the non-emission states of PRS, then starts
Launch PRS, be specially：
After base station receives the OTDOA auxiliary information request messages of location-server transmission, the transmitting of current PRS is detected
State, if being currently at non-emission state, starts to launch PRS；
It is described when need carry out OTDOA positioning when, base station receive location-server transmission unlatching OTDOA positioning letter
Order, then start to launch PRS, be specially：
When location-server receive user equipment (UE) transmission OTDOA ability informations after, the location-server to
Base station, which is sent, opens OTDOA location signalings, and base station starts to launch PRS after receiving.
Wherein, described when that need not carry out OTDOA positioning, base station receives the closing OTDOA of location-server transmission
Location signaling, then stop transmitting PRS, be specially：
When after the completion of location Calculation or when location-server is without OTDOA positioning services or location-server
When not having UE progress OTDOA positioning services in the region of management, location-server sends to base station and closes OTDOA location signalings,
Base station stops transmitting PRS after receiving.
Wherein, the unlatching OTDOA location signalings and the closing OTDOA location signalings are newly-increased Long Term Evolution respectively
Position adds (LPPa) protocol signaling.
Present invention also offers a kind of control PRS transmitting system, the system comprises：Base station and location-server；Its
In,
The base station, for when needing to carry out OTDOA positioning, detecting and being currently at the non-emission states of PRS, then start
Launch PRS；Or receive the unlatching OTDOA location signalings that location-server is sent, then start to launch PRS, when need not carry out
When OTDOA is positioned, base station receives the closing OTDOA location signalings of location-server transmission, then stops transmitting PRS.
Wherein, the base station, is additionally operable to before needing to carry out OTDOA positioning, according to the instruction of upper layer network element to PRS's
Transmitting is configured.
Wherein, the base station detects when needing to carry out OTDOA positioning and is currently at the non-emission states of PRS, then start
Launch PRS, be specially：
After base station receives the OTDOA auxiliary information request messages of location-server transmission, the transmitting of current PRS is detected
State, if being currently at non-emission state, starts to launch PRS；
The base station receives the unlatching OTDOA positioning letters of location-server transmission when needing to carry out OTDOA positioning
Order, then start to launch PRS, be specially：
After location-server receives the OTDOA ability informations of UE transmissions, the location-server sends to base station and opens
OTDOA location signalings are opened, base station starts to launch PRS after receiving.
Wherein, the base station receives the closing OTDOA of location-server transmission when that need not carry out OTDOA positioning
Location signaling, then stop transmitting PRS, be specially：
After the completion of location Calculation or when location-server is without OTDOA positioning services or location-server pipe
When not having UE progress OTDOA positioning services in the region of reason, location-server sends to base station and closes OTDOA location signalings, base
Stand and stop transmitting PRS after receiving.
Wherein, the unlatching OTDOA location signalings and the closing OTDOA location signalings are newly-increased LPPa agreements respectively
Signaling.
The method and system of control location reference signals transmitting provided by the present invention, when needing to carry out OTDOA positioning,
Base station, which detects, is currently at the non-emission states of PRS, then starts to launch PRS；Or base station receives location-server transmission
OTDOA location signalings are opened, then start to launch PRS；When that need not carry out OTDOA positioning, base station receives location-server
The closing OTDOA location signalings of transmission, then stop transmitting PRS.In no OTDOA positioning services base station can be made to stop hair
PRS is penetrated, when needing OTDOA positioning services, then starts to launch PRS, so improves the performance of base station, and save band
It is wide.
Brief description of the drawings
Fig. 1 is the network architecture schematic diagram of positioning function in the prior art；
Fig. 2 is the flow diagram of signalling in the positioning service of user terminal initialization in the prior art；
Fig. 3 is the flow diagram of signalling in the positioning service of E-SMLC initialization in the prior art；
Fig. 4 is a kind of method flow schematic diagram of control PRS transmittings of the present invention；
Fig. 5 is the flow diagram of the embodiment one of present invention control PRS transmittings；
Fig. 6 is the flow diagram of the embodiment two of present invention control PRS transmittings；
Fig. 7 is a kind of system structure diagram of control PRS transmittings of the present invention.
Embodiment
The present invention basic thought be：When needing to carry out OTDOA positioning, base station detects that being currently at PRS does not launch
State, then start to launch PRS；Or base station receives the unlatching OTDOA location signalings of location-server transmission, then starts to launch
PRS；When that need not carry out OTDOA positioning, base station receives the closing OTDOA location signalings of location-server transmission, then stops
Only launch PRS.
The technical solution of the present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
Fig. 4 is a kind of method flow schematic diagram of control PRS transmittings of the present invention, as shown in figure 4, the described method includes：
Step 401, when needing to carry out OTDOA positioning, base station, which detects, is currently at the non-emission states of PRS, then starts
Launch PRS；Or base station receives the unlatching OTDOA location signalings of location-server transmission, then start to launch PRS；
Specifically, described when needing to carry out OTDOA positioning, base station, which detects, is currently at the non-emission states of PRS, then opens
Originate and penetrate PRS, be specially：After base station receives the OTDOA auxiliary information request messages of location-server transmission, detection is current
The emission state of PRS, if being currently at non-emission state, starts to launch PRS.
It is described when need carry out OTDOA positioning when, base station receive location-server transmission unlatching OTDOA positioning letter
Order, then start to launch PRS, be specially：After location-server receives the OTDOA ability informations of UE transmissions, the positioning clothes
Device be engaged in base station transmission unlatching OTDOA location signalings, base station starts to launch PRS after receiving.Wherein, the unlatching OTDOA positioning
Signaling is newly-increased LPPa signalings.
Step 402, when that need not carry out OTDOA positioning, the closing OTDOA that base station receives location-server transmission determines
Bit signaling, then stop transmitting PRS.
Specifically, described when that need not carry out OTDOA positioning, base station receives the closing of location-server transmission
OTDOA location signalings, then stop transmitting PRS, be specially：After the completion of location Calculation or when location-server without
When there is no UE progress OTDOA positioning services in the region of OTDOA positioning services or location-server management, location-server
Sent to base station and close OTDOA location signalings, base station stops transmitting PRS after receiving.Wherein, the closing OTDOA location signalings
For newly-increased LPPa signalings.
Further, before step 401, the method further includes：Hairs of the eNB according to the instruction of upper layer network element to PRS
Inject capable configuration.
Specifically, difference with the prior art is, after configuring PRS, do not launch PRS.
Fig. 5 is the flow diagram of the embodiment one of present invention control PRS transmittings, as shown in figure 5, the application of the present embodiment
Scene opens PRS transmittings to increase judgment module in a base station, for controlling, and when OTDOA business stops, base station takes with positioning
The LPPa message of increase transmission stopping OTDOA business carrys out the transmitting that control base station stops PRS between business device.The flow is specifically wrapped
Include：
Step 501, eNB carries out PRS configurations according to the instruction on upper strata, but does not launch PRS；
Step 502, the transmission of ability information is carried out between UE and location-server by LPP agreements；
Step 503, location-server sends OTDOA request for assistance data message to eNB；
Step 504, after base station receives the OTDOA request for assistance data message of location-server transmission, the transmitting of PRS is judged
State, if emission state is unlatching, then OTDOA auxiliary data informations are provided to location-server, if emission state is
Close, then first open the transmitting of PRS, then provide OTDOA auxiliary data informations to location-server；
Step 505, OTDOA auxiliary datas are transmitted between UE and location-server；
Step 506, OTDOA location datas, i.e. measurement result are transmitted between UE and location-server；
Step 507, location-server carries out location Calculation；
Step 508, when after OTDOA positioning services or without OTDOA positioning services, location-server is sent
OTDOA positioning stops message to base station, after base station receives OTDOA positioning stopping message, stops the transmitting of PRS.The OTDOA determines
Position stops the closing OTDOA location signalings of message, that is, foregoing.
Fig. 6 is the flow diagram of the embodiment two of present invention control PRS transmittings, as shown in fig. 6, the application of the present embodiment
Scene is that increase, which is sent, between base station and location-server starts or stop OTDOA business when OTDOA business starts or stops
LPPa message come control base station open or stop PRS transmitting.The flow specifically includes：
Step 601, eNB carries out PRS configurations according to the instruction on upper strata, but does not launch PRS；
Step 602, the transmission of ability information is carried out between UE and location-server by LPP agreements；
Step 603, when there is OTDOA positioning services, location-server sends OTDOA positioning and starts message to base station, base
After station receives OTDOA positioning beginning message, the transmitting of PRS is opened；
Specifically, OTDOA positioning starts the unlatching OTDOA location signalings of message, that is, foregoing.
Step 604, location-server sends OTDOA request for assistance data message to eNB；
Step 605, eNB provides OTDOA auxiliary data informations to location-server；
Step 606, OTDOA auxiliary datas are transmitted between UE and location-server；
Step 607, OTDOA location datas are transmitted between UE and location-server；
Step 608, location-server carries out location Calculation；
Step 609, when after OTDOA positioning services or without OTDOA positioning services, location-server is sent
OTDOA positioning stops message to base station, after base station receives OTDOA positioning stopping message, stops the transmitting of PRS.The OTDOA determines
Position stops the closing OTDOA location signalings of message, that is, foregoing.
Fig. 7 is a kind of system structure diagram of control PRS transmittings of the present invention, as shown in fig. 7, the system comprises：Base
Stand 71 and location-server 72；Wherein,
The base station 71, for when needing to carry out OTDOA positioning, base station 71, which detects, to be currently at the non-emitting shapes of PRS
State, then start to launch PRS；Or receive the unlatching OTDOA location signalings that location-server 72 is sent, then start to launch PRS, when
When need not carry out OTDOA positioning, base station 71 receives the closing OTDOA location signalings of the transmission of location-server 72, then stops
Launch PRS.
Specifically, the base station 71 detects when needing to carry out OTDOA positioning and is currently at the non-emission states of PRS, then
Start to launch PRS, be specially：After base station 71 receives the OTDOA auxiliary information request messages of the transmission of location-server 72, inspection
The emission state of current PRS is surveyed, if being currently at non-emission state, starts to launch PRS.
The base station 71 receives the unlatching OTDOA positioning of the transmission of location-server 72 when needing to carry out OTDOA positioning
Signaling, then start to launch PRS, be specially：It is described fixed after location-server 72 receives the OTDOA ability informations of UE transmissions
Position server 72 is sent to base station 71 opens OTDOA location signalings, and base station 71 starts to launch PRS after receiving.Wherein, the unlatching
OTDOA location signalings are newly-increased LPPa signalings.
When that need not carry out OTDOA positioning, the closing OTDOA for receiving the transmission of location-server 72 determines for the base station 71
Bit signaling, then stop transmitting PRS, be specially：After the completion of location Calculation or when location-server 72 is determined without OTDOA
When not having the UE to carry out OTDOA positioning services in the region that position business or location-server 72 manage, location-server 72 is to base
OTDOA location signalings are closed in 71 transmissions of standing, and base station 71 stops transmitting PRS after receiving.Wherein, the closing OTDOA location signalings
For newly-increased LPPa signalings.
Further, the base station 71, is additionally operable to before needing to carry out OTDOA positioning, according to the instruction of upper layer network element
Transmitting to PRS configures.
Specifically, difference with the prior art is, after configuring PRS, do not launch PRS.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (8)
1. the method for one kind control location reference signals (PRS) transmitting, it is characterised in that the described method includes：
Base station is configured according to transmitting of the instruction of upper layer network element to PRS, after configuring PRS, does not launch PRS；
When needing to carry out Observable reaching time-difference (OTDOA) positioning, base station, which detects, is currently at the non-emission states of PRS,
Then start to launch PRS；Or base station receives the unlatching OTDOA location signalings of location-server transmission, then start to launch PRS；
When that need not carry out OTDOA positioning, base station receives the closing OTDOA location signalings of location-server transmission, then stops
Only launch PRS.
2. according to the method described in claim 1, it is characterized in that, described when needing to carry out OTDOA positioning, base station detects
The non-emission states of PRS are currently at, then starts to launch PRS, is specially：
After base station receives the OTDOA auxiliary information request messages of location-server transmission, the emitting shape of current PRS is detected
State, if being currently at non-emission state, starts to launch PRS；
It is described when need carry out OTDOA positioning when, base station receive location-server transmission unlatching OTDOA location signalings, then
Start to launch PRS, be specially：
After location-server receives the OTDOA ability informations of user equipment (UE) transmission, the location-server is to base station
Send and open OTDOA location signalings, base station starts to launch PRS after receiving.
3. according to the method described in claim 1, it is characterized in that, described when that need not carry out OTDOA positioning, base station receives
The closing OTDOA location signalings sent to location-server, then stop transmitting PRS, be specially：
When after the completion of location Calculation or when location-server is without OTDOA positioning services or location-server management
Region in do not have UE carry out OTDOA positioning services when, location-server to base station send close OTDOA location signalings, base station
Stop transmitting PRS after reception.
4. according to the method described in claim 1, it is characterized in that, the unlatching OTDOA location signalings and the closing OTDOA
Location signaling is that newly-increased Long Term Evolution position adds (LPPa) protocol signaling respectively.
A kind of 5. system of control PRS transmittings, it is characterised in that the system comprises：Base station and location-server；Wherein,
The base station, configures for transmitting of the instruction according to upper layer network element to PRS, after configuring PRS, does not launch PRS；When
When needing to carry out OTDOA positioning, detect and be currently at the non-emission states of PRS, then start to launch PRS；Or receive positioning clothes
The unlatching OTDOA location signalings that business device is sent, then start to launch PRS, when that need not carry out OTDOA positioning, base station receives
The closing OTDOA location signalings that location-server is sent, then stop transmitting PRS.
6. system according to claim 5, it is characterised in that the base station is detected when needing to carry out OTDOA positioning
The non-emission states of PRS are currently at, then starts to launch PRS, is specially：
After base station receives the OTDOA auxiliary information request messages of location-server transmission, the emitting shape of current PRS is detected
State, if being currently at non-emission state, starts to launch PRS；
The base station receives the unlatching OTDOA location signalings of location-server transmission, then when needing to carry out OTDOA positioning
Start to launch PRS, be specially：
After location-server receives the OTDOA ability informations of UE transmissions, the location-server sends to base station and opens
OTDOA location signalings, base station start to launch PRS after receiving.
7. system according to claim 5, it is characterised in that the base station is received when that need not carry out OTDOA positioning
The closing OTDOA location signalings sent to location-server, then stop transmitting PRS, be specially：
After the completion of location Calculation or when location-server is without OTDOA positioning services or location-server management
When not having UE progress OTDOA positioning services in region, location-server sends to base station and closes OTDOA location signalings, and base station connects
Stop transmitting PRS after receipts.
8. system according to claim 5, it is characterised in that the unlatching OTDOA location signalings and the closing OTDOA
Location signaling is newly-increased LPPa protocol signalings respectively.
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| CN201110322341.7A CN103068012B (en) | 2011-10-21 | 2011-10-21 | A kind of method and system for controlling location reference signals transmitting |
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| CN201110322341.7A CN103068012B (en) | 2011-10-21 | 2011-10-21 | A kind of method and system for controlling location reference signals transmitting |
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| US10420063B2 (en) * | 2017-02-02 | 2019-09-17 | Qualcomm Incorporated | On-demand user equipment positioning |
| CN110831150B (en) | 2018-08-13 | 2022-07-19 | 中兴通讯股份有限公司 | Time difference of arrival determining method, communication equipment and system |
| CN110881203A (en) | 2018-09-05 | 2020-03-13 | 电信科学技术研究院有限公司 | Positioning resource coordination method, device, network node, terminal and base station |
| CN112073894B (en) * | 2019-05-24 | 2022-03-22 | 大唐移动通信设备有限公司 | Information determination method and device |
| CN113747338B (en) * | 2020-05-14 | 2023-03-24 | 大唐移动通信设备有限公司 | Information reporting method, device, equipment and readable storage medium |
| CN115334640A (en) * | 2021-05-11 | 2022-11-11 | 大唐移动通信设备有限公司 | Method, device, storage medium and program product for assisting positioning |
| WO2023240640A1 (en) * | 2022-06-17 | 2023-12-21 | 北京小米移动软件有限公司 | Method and apparatus for stopping terminal positioning, device and storage medium |
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| CN102158955A (en) * | 2010-01-19 | 2011-08-17 | 韩国电子通信研究院 | Base station, repeater, and operating method thereof |
| CN102149070A (en) * | 2010-02-09 | 2011-08-10 | 中兴通讯股份有限公司 | Positioning auxiliary data notification method, device and positioning method in long-term evolution system |
| CN102065537A (en) * | 2011-01-12 | 2011-05-18 | 大唐移动通信设备有限公司 | Method and device for transmitting information |
| CN102196558A (en) * | 2011-05-04 | 2011-09-21 | 电信科学技术研究院 | Positioning method and device |
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| CN103068012A (en) | 2013-04-24 |
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