WO2016000120A1 - 一种定位用户设备的方法、设备和系统 - Google Patents

一种定位用户设备的方法、设备和系统 Download PDF

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Publication number
WO2016000120A1
WO2016000120A1 PCT/CN2014/081131 CN2014081131W WO2016000120A1 WO 2016000120 A1 WO2016000120 A1 WO 2016000120A1 CN 2014081131 W CN2014081131 W CN 2014081131W WO 2016000120 A1 WO2016000120 A1 WO 2016000120A1
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WO
WIPO (PCT)
Prior art keywords
signal
location
location card
card
reader
Prior art date
Application number
PCT/CN2014/081131
Other languages
English (en)
French (fr)
Inventor
张毅
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14896907.4A priority Critical patent/EP3151618B1/en
Priority to KR1020177001217A priority patent/KR101805562B1/ko
Priority to CN201480031526.4A priority patent/CN105393611B/zh
Priority to PCT/CN2014/081131 priority patent/WO2016000120A1/zh
Priority to JP2016573466A priority patent/JP6610963B2/ja
Publication of WO2016000120A1 publication Critical patent/WO2016000120A1/zh
Priority to US15/395,510 priority patent/US10149270B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, device, and system for locating user equipment. Background technique
  • a method based on channel fingerprinting for a UE and a method based on measuring a positioning UE.
  • the method for locating the UE based on the channel fingerprint needs to scan the channel information of each location in advance, and the workload is huge; and based on the method for measuring the positioning of the UE, since multiple antennas can receive the uplink signal of the UE, the UE and the antenna cannot be accurately identified. The distance caused the UE to be inaccurate.
  • Embodiments of the present invention provide a method, device, and system for locating user equipment, which can improve the accuracy of user equipment positioning.
  • a first aspect of the present invention provides a method of locating a user equipment, the method being applied to a communication system, the communication system including a location card, a signal transmission point, and a reader, the method comprising: the location card detection An uplink signal sent by the user equipment UE; the location card generates a first signal according to the uplink signal, and sends the first signal to the reader; where the first signal carries The identification information of the location card is used, and the first signal is used to instruct the reader to determine the location of the UE according to the location of the first signal and the location card.
  • the generating, by the location card, the first signal according to the uplink signal includes: the location card generating a first pulse signal according to the uplink signal; The card generates the first signal according to the first pulse signal and the identification information of the location card.
  • the first signal is a pulse signal, and a pulse amplitude of the first signal and the uplink signal
  • the relationship between the signal strengths is a preset proportional relationship.
  • the method further includes: the location card receiving an indication signal sent by the reader, the indication The signal is used to instruct the location card to send a second signal; the location card sends the second signal to at least one location card other than the location card.
  • the method further includes: the location card receiving a second signal sent by another location card; The location card generates a third signal according to the second signal, and sends the third signal to the reader; wherein the third signal carries the location card and the other location Identification information of the card, and the third signal is used to instruct the reader to determine the location card and the another location card according to an arrival time of the third signal and a sending time of the indication signal The relative distance between them.
  • the generating, by the location card, the third signal according to the second signal includes: determining, according to the second signal, the another Identifying information of a location card, and generating the third signal according to the identification information of the another location card and the location card and the second signal; or by identifying information of the location card Carrying in the second signal, generating the third signal, where the second signal carries the identification information of the another location card; wherein the third signal carries the location card and the location The identification information of another location card.
  • the second signal is an ultrasonic or electromagnetic wave signal.
  • the identifier information includes a radio frequency identifier or a cell identifier.
  • a second aspect of the present invention provides a method of locating a user equipment, the method being applied to a communication system, the communication system comprising a location card, a signal transmission point, and a reader, the method comprising: the reader Receiving a first signal sent by the location card, where the first signal is generated by the location card according to an uplink signal sent by the user equipment UE, and the first signal carries the identifier information of the location card The reader determines the location of the UE based on the first signal and the location of the location card.
  • the determining, by the reader, the location of the UE according to the location of the first signal and the location card including: the reader Determining, according to a signal strength of the first signal, a first distance between the location card and the UE, and determining a location of the UE according to the first distance and a location of the location card; or The reader acquires a location of the location card according to the first signal, and determines a location of the UE according to a location of the location card and a location of at least one location card other than the location card, where The at least one location card is configured to successfully detect the uplink signal of the UE, and send a signal to the location card of the reader according to the uplink signal; or, the reader is according to the first The signal acquires a location of the location card, and determines a location of the UE according to a motion trajectory of the UE and a location of the location card.
  • the method further includes: the reader successfully detecting the uplink signal according to the The uplink signal sends a signal to the number of location cards of the reader, and sends a notification message to the network side device, where the notification message is used to instruct the network side device to adjust the transmit power of the UE; or, the read The device sends the signal sent by the location signal of the uplink signal to the network side device according to the signal sent by the uplink signal, so that the network side device adjusts the transmit power of the UE according to the signal sent by the reader.
  • the method before the reader receives the first signal sent by the location card, the method further The method includes: the reader acquiring a location of the location card.
  • the acquiring, by the reader, the location of the location card includes: the reader sending an indication signal, the indication signal Instructing another location card to send a second signal; the reader receiving a third signal sent by the location card, where the third signal carries identification information of the location card and the another location card, The third signal is generated by the location card according to the second signal sent by the another location card; the reader is based on an arrival time of the third signal and a sending time of the indication signal Determining a relative distance between the location card and the other location card; the reader is in accordance with the other location card and any location other than the location card and the other location card The actual distance between the cards determines the location of the location card.
  • the method further includes: the reader sending location information of the UE to a network side device.
  • a third aspect of the present invention provides a method for locating a user equipment, where the method includes: receiving, by a network side device, an uplink signal sent by a user equipment UE; and determining, by the network side device, channel information of the UE according to the uplink signal.
  • the channel information includes reference signal received power RSRP or channel state information CSI; the network side device determines the location of the UE according to the channel information of the UE and the corresponding relationship between the preset channel information and the location information.
  • the network side device determines, according to the channel information of the UE, the relationship between the preset channel information and the location information, that the location of the UE includes: The network side device receives the location information of the UE sent by the reader, where the location information is determined by the first signal sent by the reader according to the location card, and the first signal is determined by the location card And generating, by the network side device, the UE, according to the location information, the channel information of the UE, and the relationship between the preset channel information and the location information, determining the UE. s position.
  • a fourth aspect of the present invention provides a device for locating a user equipment, where the device is a location card, the location card is applied to a communication system, and the communication system further includes a signal transmission point and a reader, where the location
  • the card includes: a detecting unit, configured to detect an uplink signal sent by the user equipment UE; a first signal generating unit, configured to generate a first signal according to the uplink signal detected by the detecting unit, and send the first signal to the The first signal carries the identification information of the location card, and the first signal is used to instruct the reader to determine the location according to the first signal and the location card.
  • the location of the UE includes: a detecting unit, configured to detect an uplink signal sent by the user equipment UE; a first signal generating unit, configured to generate a first signal according to the uplink signal detected by the detecting unit, and send the first signal to the The first signal carries the identification information of the location card, and the first signal is used to instruct the reader to determine the location according to the first
  • the first signal generating unit includes a pulse generating unit and a label unit, where the pulse generating unit is configured to detect an uplink according to the detecting unit The signal generates a first pulse signal; the label unit is configured to generate the first signal according to the first pulse signal generated by the pulse generating unit and the identification information of the location card.
  • the first signal is a pulse signal
  • a pulse amplitude of the first signal and the uplink signal The relationship between the signal strengths is a preset proportional relationship.
  • the location card further includes: a first signal receiving unit, configured to receive the sending by the reader An indication signal, the indication signal is used to instruct the location card to send a second signal, and a second signal generation unit is configured to generate the second signal, and send the second signal to the location card At least one location card.
  • the method further includes: a second signal receiving unit, configured to receive another location card sending a second signal generating unit, configured to generate a third signal according to the second signal received by the second signal receiving unit, and send the third signal to the reader;
  • the third signal carries the identification information of the location card and the another location card, and the third signal is used to indicate the arrival time of the reader according to the third signal and the sending time of the indication signal , OK The relative distance between the location card and the other location card.
  • the third signal generating unit is configured to: determine, according to the second signal, identifier information of the another location card And generating the third signal according to the identification information of the another location card and the location card and the second signal; or by carrying the identification information of the location card in the second Generating the third signal, where the second signal carries the identification information of the another location card; wherein the third signal carries the location card and the another location card Identification information.
  • the second signal is an ultrasonic or electromagnetic wave signal.
  • the identifier information includes a radio frequency identifier or a cell identifier.
  • a fifth aspect of the present invention provides a device for locating a user equipment, where the device is a reader, the reader is applied to a communication system, and the communication system further includes a location card and a signal transmission point, where
  • the reader includes: a signal receiving unit, configured to receive a first signal sent by the location card, where the first signal is generated by the location card according to an uplink signal sent by the user equipment UE, and the The signal carries the identification information of the location card; the UE positioning unit is configured to determine the location of the UE according to the first signal received by the signal receiving unit and the location of the location card.
  • the UE positioning unit is specifically configured to: determine, according to a signal strength of the first signal, a first between the location card and the UE a distance, and determining a location of the UE according to the first distance and a location of the location card; or acquiring a location of the location card according to the first signal, and according to the location of the location card
  • the location of the at least one location card other than the location card determines the location of the UE, where the at least one location card is the uplink signal that successfully detects the UE, and sends a signal according to the uplink signal.
  • the second implementation aspect of the fifth aspect further includes: a first sending unit, configured to send a notification message to the network side device according to the number of the location cards that successfully detect the uplink signal and send a signal to the reader according to the uplink signal,
  • the notification message is used to indicate that the network side device adjusts the transmit power of the UE; or, the location card that successfully detects the uplink signal is sent to the network side device according to the signal sent by the uplink signal, so that the network The side device adjusts the transmit power of the UE according to the signal sent by the reader.
  • the method further includes: a location card positioning unit, configured to acquire a location of the location card.
  • the location card positioning unit is specifically configured to: send an indication signal, where the indication signal is used to indicate another location card sending Receiving a third signal sent by the location card, where the third signal carries identification information of the location card and the another location card, and the third signal is determined by the location card according to the location And generating, by the second signal sent by the other location card, determining a relative distance between the location card and the another location card according to an arrival time of the third signal and a sending time of the indication signal; The location of the location card is determined based on an actual distance between the other location card and any location card other than the location card and the other location card.
  • the reader further includes: a second sending unit, configured to determine the UE positioning unit The location information of the UE is sent to the network side device.
  • a sixth aspect of the present invention provides a device for locating a user equipment, where the device is a network side device, and the network side device includes: a receiving unit, configured to receive an uplink signal sent by the user equipment UE, and a channel information acquiring unit, And determining, according to the uplink signal received by the receiving unit, channel information of the UE, where the channel information includes reference signal received power RSRP or channel state information CSI; and a UE positioning unit, configured to use channel information according to the UE Acquiring the channel information acquired by the unit and the corresponding relationship between the preset channel information and the location information, and determining the location of the UE.
  • the device is a network side device
  • the network side device includes: a receiving unit, configured to receive an uplink signal sent by the user equipment UE, and a channel information acquiring unit, And determining, according to the uplink signal received by the receiving unit, channel information of the UE, where the channel information includes reference signal received power RSRP or channel state information CSI; and a
  • the UE positioning unit is specifically configured to: receive location information of the UE that is sent by a reader, where the location information is used by the reader According to Determining, by the first signal sent by the location card, the first signal is generated by the location card according to the uplink signal sent by the UE; according to the location information, channel information of the UE and a preset The relationship between the channel information and the location information determines the location of the UE.
  • a seventh aspect of the present invention provides a communication system, including: a user equipment UE, a first location card, a reader, and a signal transmission point; and the first location card, configured to receive an uplink signal sent by the UE, Generating a first signal according to the uplink signal, and sending the first signal to the reader, where the first signal carries identification information of the first location card, and the first signal is used for Instructing the reader to determine a location of the UE according to the first signal and a location of the first location card; the reader, configured to receive the first signal sent by the first location card And determining a location of the UE according to the first signal and a location of the first location card.
  • the network side device is further configured to: receive an uplink signal sent by the UE, and determine the UE according to the uplink signal.
  • the channel information and determining the location of the UE according to the channel information of the UE and the corresponding relationship between the channel information and the location information, where the channel information includes reference signal received power RSRP or channel state information CSI; or Receiving location information of the UE sent by the reader, and determining a location of the UE according to the location information, the channel information, and a relationship between preset channel information and location information.
  • the second implementation manner of the seventh aspect further includes: a second location card; the reader is further configured to send an indication signal, where The indication signal is used to indicate that the location card sends a signal; the first location card is further configured to receive an indication signal sent by the reader, and send a second signal to the second location card; And receiving the second signal sent by the first location card, and generating a third signal according to the second signal, and sending the third signal to the reader; the reader And receiving a third signal sent by the second location card, determining, between the first location card and the second location card, according to an arrival time of the third signal and a sending time of the indication signal. a relative distance, determining a bit of the first location card according to an actual distance between the first location card and any location card other than the second location card Set.
  • the uplink signal sent by the UE is detected by the location card, and the first signal carrying the location card identifier is generated according to the uplink signal, and the first signal is sent to the reader to enable reading.
  • the device determines the location of the UE according to the location card identifier information carried by the first signal and the location of the location card, which not only greatly simplifies the method for locating the user equipment in the prior art, but also more accurately identifies the location of the UE.
  • FIG. 1 is a flowchart of a method for locating a user equipment according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for locating user equipment according to an embodiment of the present invention
  • FIG. 3 is a flowchart of still another method for locating user equipment according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of a location card according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of another location card according to an embodiment of the present invention.
  • FIG. 5b is a structural block diagram of still another location card according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a reader according to an embodiment of the present invention.
  • 6a is a structural block diagram of another reader according to an embodiment of the present invention.
  • 6b is a structural block diagram of still another reader according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing a hardware structure of a location card according to an embodiment of the present invention.
  • FIG. 10 is a block diagram showing a hardware structure of a reader according to an embodiment of the present invention
  • FIG. 11 is a block diagram showing the hardware structure of a network side device according to an embodiment of the present invention. detailed description
  • the signal transmission point may be an active transmission point, for example, an access point (AP), an indoor small base station, etc.; the signal transmission point may also be a passive transmission point, for example, distributed.
  • the ceiling antenna in the distributed antenna system (DAS) is not limited in the present invention.
  • the location card may be a card, a module or a device for communicating with a reader, and may be built in or external to a signal transmission point, for example, arranged in a signal range of a signal transmission point. It is also possible to arrange a position card within the signal range of a signal transmission point. In addition, the number of location card arrangements is related to the positioning accuracy of the UE.
  • the reader can be a card, a module or a device for communicating with the location card and the network side device, and can be built in or external to the network side device. In addition, one reader can communicate with one or more network side devices. .
  • the network side device may specifically be a station or an access controller (AC) or a base station controller, which is not limited in the present invention.
  • a method for locating a user equipment is provided in the embodiment of the present invention.
  • the method is specifically applied to a communication system, where the communication system includes a location card, a signal transmission point, and a reader, and the method includes:
  • the location card detects an uplink signal sent by the UE.
  • the location card generates a first signal according to the uplink signal, and sends the first signal to the reader.
  • the first signal carries identification information of the location card, and the first signal is used for The reader is instructed to determine a location of the UE based on the first signal and a location of the location card.
  • the identifier information may include a radio frequency identification (RFID) or a cell identification (cell ID).
  • the location of the location card can be determined by field test and preset in the reader; it can also be exchanged between the reader and the location card and between the location card and the location card. Obtained, there is no limit here.
  • the first signal may be a pulse signal or a non-pulse signal capable of reflecting the uplink signal strength of the UE, or may be a pulse or non-pulse signal with a fixed signal amplitude, which is not limited herein.
  • the first signal may be a pulse signal whose pulse amplitude is in a predetermined proportional relationship with the signal strength of the uplink signal, or may be a pulse signal whose pulse amplitude is a preset amplitude.
  • the first signal may be directly generated according to the uplink signal detected by the location card.
  • the first signal is generated by carrying the information of the location card in the detected uplink signal.
  • step 102 may include steps 102a and 102b, as follows:
  • the location card generates a first pulse signal according to the uplink signal.
  • the relationship between the pulse amplitude of the first pulse signal and the signal strength of the uplink signal sent by the UE may be a preset proportional relationship, that is, the pulse amplitude of the first pulse signal may be related to the signal strength of the uplink signal. Change and change. For example, when the signal strength of the up signal increases, the pulse amplitude of the first pulse signal increases, and when the signal strength of the up signal decreases, the pulse amplitude of the first pulse signal decreases.
  • the pulse amplitude of the first pulse signal may also be a preset amplitude, and the preset amplitude may be configured by an external input device.
  • the location card generates the first signal according to the first pulse signal and the identification information of the location card.
  • the first signal may be a pulse signal whose pulse amplitude is proportional to the signal strength of the uplink signal, or may be a pulse signal whose pulse amplitude is a preset amplitude.
  • the detector in the location card detects the uplink signal sent by the UE, and controls the pulse generator to generate a first pulse signal by using the detection result of the detector, wherein the pulse energy of the first pulse signal It may be the same or different; then, the first pulse signal is sent to the reader through the barrier provided in the SAW tag.
  • the signal sent by the SAW tag to the reader carries the RF ID of the location card.
  • the reader detects the signal sent by the location card, and determines which of the location cards are closer to the UE according to the detected location card signal to determine the location of the UE.
  • the location of the UE may be determined by calculating the distance between the UE and the location card or the trajectory of the UE.
  • the method for locating a user equipment detects an uplink signal sent by the UE by using a location card, and generates a first signal carrying the location card identifier according to the uplink signal, and sends the first signal to the reader. Therefore, the reader determines the location of the UE according to the first signal and the location of the location card, which not only greatly simplifies the method for locating the user equipment in the prior art, but also can more accurately identify the location of the UE.
  • the method further includes:
  • the location card receives an indication signal sent by the reader, and the indication signal is used to indicate that the location card sends a second signal.
  • the second signal may be an ultrasonic or electromagnetic wave signal; in addition, the second signal may be uniquely identified by frequency or identification.
  • the location card sends the second signal to at least one location card other than the location card.
  • the steps 100a and 100b and the steps 101 and 102 can be performed in any order, and no limitation is imposed here.
  • the second signal may carry the first identifier of the location card, where the first identifier may be the identifier information of the location card, or may be another identifier for identifying the location card, which is not limited herein. .
  • the location card sends the second signal to the other location card, so that the other location card processes the second signal and sends it to the reader, so that the reader can determine each location according to the signal.
  • the distance between the cards not only avoids the complexity of manually determining the distance between the location cards, but also improves the positional positioning accuracy of the location cards.
  • the method further includes:
  • the location card receives a second signal sent by another location card.
  • the second signal may be an ultrasonic or electromagnetic wave signal; the second signal may carry the first identifier of the another location card, and the first identifier may be the identifier information of the another location card, or It is an identifier other than the identification information and capable of uniquely identifying the other location card, and is not limited herein.
  • the location card generates a third signal according to the second signal, and sends the third signal to the reader.
  • the third signal carries the identification information of the location card and the another location card, and the third signal is used to indicate that the reader is based on the arrival time of the third signal and the The transmission time of the indication signal determines the relative distance between the location card and the other location card.
  • the reader determines the relative distance between the location card and the other location card according to the arrival time of the third signal and the transmission time of the indication signal, which may be exemplified as follows.
  • the length of the signal transmission between the two is obtained by the signal interaction between the reader and the location card; then, the signals sent by the other location card are obtained through the location card through steps 100c and 100d.
  • the length of the transmission time to the reader; the difference between the two can be used to know the length of time that the signal is transmitted between the location card and the other location card, thereby obtaining a relatively large separation between the two location cards.
  • the location card in step 100d generates a third signal according to the second signal, which may include:
  • the second signal carries the identification information of the another location card.
  • the third signal carries identification information of the location card and the another location card.
  • the second signal may carry the first identifier of the another location card, and the location card determines the identifier information of the another location card according to the first identifier and the pre-stored location card identifier information, and according to The other location card and the identification information of the location card and the second signal generate the third signal.
  • the location card receives a second signal sent by another location card, and the location card processes the received second signal and sends the second signal to the reader, so that the reader determines the location card according to the second signal. the distance between.
  • the communication system includes a location card, a signal transmission point, and a reader, and the method is specifically as follows. Said.
  • the reader receives the first signal sent by the location card, where the first signal is generated by the location card according to an uplink signal sent by the UE, and the first signal carries the identifier of the location card. information.
  • the reader determines a location of the UE according to the first signal and a location of the location card.
  • a location of the location card refer to the related description in step 102, and details are not described herein.
  • step 202 can adopt the following three implementation manners:
  • the reader determines a first distance between the location card and the UE according to a signal strength of the first signal, and determines, according to the first distance and a location of the location card, The location of the UE.
  • the reader acquires the location of the location card according to the first signal, and determines the UE according to the location of the location card and the location of at least one location card other than the location card. a location, where the at least one location card is the uplink signal that successfully detects the UE, and sends a signal to the location card of the reader according to the uplink signal.
  • the mode 1 and the mode 2 are applicable to the case where only the UE sends an uplink signal in the coverage of the base station or the serving cell corresponding to the UE in the preset time period, for example, one base station corresponds to one reader.
  • the preset time period only one UE in the signal coverage area of the base station sends an uplink signal, and the reader receives the signal sent by the location card according to the uplink signal, and at this time, the signal sent by the reader through the location card and The location of the location card determines the location of the UE.
  • the scheduling information of the base station may be used to determine whether there is only one uplink signal sent by the UE, and details are not described herein again.
  • the prior art for example, the center of gravity method
  • Manner 3 The reader acquires a location of the location card according to the first signal, and determines a location of the UE according to a movement trajectory of the UE and a location of the location card.
  • the mobile trajectory of the UE may include a moving direction, a moving speed, and the like of the UE, and is not limited.
  • the third mode may be used when a plurality of UEs send uplink signals in the coverage of the base station or the serving cell.
  • the location of the UE may be obtained as the initial location of the UE by using the mode 1 or the second mode in the foregoing step 202, and the location of the UE is estimated according to the mobile trajectory of the UE and the initial location.
  • the method for locating a user equipment provided by the embodiment of the present invention, the first signal carrying the location card identifier sent by the location card is received by the reader, and the UE is determined according to the first signal and the location of the location card.
  • the location not only greatly simplifies the method of locating user equipment in the prior art, but also more accurately identifies the location of the UE.
  • the method before the reader receives the first signal sent by the location card, the method further includes:
  • the reader acquires a location of the location card.
  • step 200 may include:
  • the reader sends an indication signal to the location card, the indication signal is used to indicate another bit Sending a card to send a second signal;
  • the reader receives a third signal sent by the location card, the third signal carries identification information of the location card and the another location card, and the third signal is determined by the location card according to the location card Generating the second signal sent by the other location card;
  • the reader determines the location of the location card based on the actual distance between the other location card and any location card other than the location card and the other location card.
  • the foregoing indication signal may be sent by the base station to notify the reader to send the message, or may be triggered by the reader or the signal transmission point detecting the uplink signal of the UE, no longer, for example.
  • the actual distance may be referred to as a physical distance, and the actual distance between any of the position cards other than the other position card may be obtained by field measurement, or may be by two positions other than the position card mentioned above. The actual distance between the cards is obtained without restriction.
  • the distance between the location cards is determined by the signal transmission delay between the location cards, and the actual distance between any two location cards is known only through actual measurement or other prior art.
  • the position of the card can be obtained by the above method, which not only avoids the complexity of manually determining the distance between the multiple location cards, but also improves the accuracy of the location card positioning, thereby improving the accuracy of the UE positioning.
  • the method further includes:
  • the reader sends location information of the UE to a network side device.
  • the location information of the UE may be used by the network side device to associate location information of the UE with channel information occupied by the UE, or may be used by the network side device to send by using the reader.
  • the location information is corrected for the UE location obtained by the network side device, and is not limited herein.
  • the channel information may include reference signal received power (RSRP) or channel state information (CSI).
  • RSRP reference signal received power
  • CSI channel state information
  • the network side device may be a base station or an access controller or a base station controller, and is not limited herein. System.
  • the reader sends the location information of the UE to the network side device, so that the network side device can associate and save the channel information with the location information, so that the subsequently accessed UE can directly pass the subsequent connection.
  • the channel information of the occupied UE occupies the channel and the relationship between the saved channel information and the location information to determine the location of the subsequently accessed UE.
  • the method further includes:
  • the reader sends a notification message to the network side device according to the number of the location cards that the uplink signal is successfully detected and sent to the reader according to the uplink signal, where the notification message is used to indicate the location
  • the network side device adjusts the transmit power of the UE; or
  • the reader sends a signal sent by the location card of the uplink signal to the network side device, so that the network side device adjusts the transmit power of the UE according to the signal sent by the reader.
  • the network side device may be sent to notify the network side device to increase the transmit power of the UE, so that more location cards detect the uplink of the UE.
  • the signal is used to improve the accuracy of the location of the UE.
  • the network side device may be sent to notify the network side device to reduce the UE's transmit power to reduce the detection.
  • the number of location cards to the uplink signal of the UE avoids the problem of excessive interference caused by excessive location card transmission signals.
  • the reader can directly send the signal to the network side device, and the network side device determines whether it is necessary to adjust the UE transmit power and how to adjust.
  • the communication system includes a location card, a signal transmission point, and a reader.
  • the position card includes at least a first location card, a second location card, and a third location card, and the actual distance between the first location card and the third location card is known as an example, as described below.
  • the reader sends an indication signal, where the indication signal is used to indicate that the location card sends a signal.
  • the signal may be an ultrasonic wave or an electromagnetic wave signal, and the signal may pass a frequency or Identification uniquely identified.
  • the location card described above may be all location cards within the coverage of the reader signal.
  • the first location card receives the indication signal sent by the reader, and sends a second signal to the second location card.
  • the second location card generates a third signal according to the second signal sent by the first location card, and sends the third signal to the reader.
  • the third signal carries the identification information of the first location card and the second location card, and the third signal is used to indicate that the reader is based on the arrival time of the third signal and And a sending time of the indication signal, determining a relative distance between the first location card and the second location card.
  • step 303 can include:
  • the third signal is generated by carrying the identifier information of the second location card in the second signal, where the second signal carries the identifier information of the first location card.
  • the third signal carries identification information of the first location card and the second location card.
  • the second signal carries the identification information of the first location card, and the identifier information of the second location card is carried in the second signal to generate the third signal.
  • the second location card identifies the first location card by the frequency of the second signal, and carries the identification information of the first location card and the second location card in the second signal to generate a third signal.
  • step 100d For determining the relative distance between the first location card and the second location card according to the arrival time of the third signal and the sending time of the indication signal, refer to the related description in step 100d. .
  • the reader receives a third signal sent by the second location card.
  • the reader determines a relative distance between the first location card and the second location card according to an arrival time of the third signal and a sending time of the indication signal.
  • step 305 for related description in step 100d.
  • the reader determines a location of the second location card according to an actual distance between the first location card and a third location card.
  • the actual distance between the first location card and the third location card can be obtained by actual measurement, and is preset in the reader.
  • the manner of obtaining the actual distance is not limited.
  • the location of the second location card can be determined based on a topology map of the location card and an actual distance between the first location card and the third location card.
  • the second location card detects an uplink signal sent by the UE.
  • the second location card generates a first signal according to the uplink signal, and sends the first signal to the reader.
  • the first signal carries the identifier information of the second location card, where the identifier information includes an RF ID or a Cell ID.
  • step 308 For the specific implementation of the step 308, refer to the related description in step 102, and details are not described herein.
  • the reader receives a first signal sent by the second location card.
  • the reader determines a location of the UE according to the location of the first signal and the second location card.
  • step 301 For the specific implementation of step 301, refer to the related description in step 202.
  • the method for locating a user equipment determines the location of the location card by sending a signal between the location cards, thereby reducing the complexity of determining the position of the location card; the uplink signal sent by the UE triggers the location card to send the signal at the determined location.
  • the reader is caused to cause the reader to locate the UE according to the received signal and the location of the location card of the determined location, which reduces the complexity of UE positioning.
  • another method for locating a user equipment according to an embodiment of the present invention is performed by a network side device, as described below.
  • the network side device receives an uplink signal sent by the UE.
  • the network side device determines channel information of the UE according to the uplink signal.
  • the channel information may include RSRP or CSI. 403.
  • the network side device determines the location of the UE according to the channel information of the UE and the corresponding relationship between the preset channel information and the location information.
  • the base station After obtaining the channel information of the UE, the base station searches for corresponding location information according to the corresponding relationship between the preset channel information and the location information, and the corresponding location information can be used as the location information of the UE.
  • step 403 may specifically include steps 403a and 403b.
  • the network side device receives location information of the UE sent by a reader.
  • the location information may be determined by the first signal sent by the reader according to the location card, that is, obtained by using the method shown in FIG. 3; the first signal is determined by the location card.
  • the generation of the uplink signal sent by the UE is not described here.
  • the network side device determines the location of the UE according to the location information sent by the reader, the channel information of the UE, and the relationship between the preset channel information and the location information.
  • the location information of the UE is obtained by searching the correspondence table between the preset channel information and the location information according to the channel information of the UE, and then correcting the location information of the UE obtained by the search according to the location information sent by the reader.
  • the correction method may specifically be an averaging method and belongs to the prior art.
  • the correspondence between the preset channel information and the location information in step 403 can be obtained by associating and saving the UE location information reported by the reader with the channel information.
  • the network side device determines the channel information of the UE according to the uplink signal of the UE, and determines the information according to the channel information of the UE and the corresponding relationship between the preset channel information and the location information.
  • the location of the UE the method further simplifies the prior art method of locating the UE.
  • the following Figure 5-7 embodiment, and the embodiment of Figure 9-11, respectively, take a location card, a reader or a network side device as an example, and describes a device for locating a user equipment.
  • a location card 500 is provided in an embodiment of the present invention.
  • the location card 500 is used in a communication system.
  • the communication system further includes a signal transmission point and a reader.
  • the location card 500 includes: a detection unit 501.
  • the detecting unit 501 is configured to detect an uplink signal sent by the UE.
  • the first signal generating unit 502 is configured to generate a first signal according to the uplink signal detected by the detecting unit 501, and send the first signal to the reader.
  • the first signal carries the identification information of the location card 500, and the first signal is used to indicate that the reader determines the location of the UE according to the location of the first signal and the location card 500.
  • the first signal For a detailed description of the first signal, refer to the related description in the embodiment shown in FIG. 1, and details are not described herein again.
  • the detecting unit 501 may specifically be a detector.
  • the first signal generating unit 502 may include a pulse generating unit 5021 and a tag unit 5022, as described below.
  • the pulse generating unit 5021 is configured to generate a first pulse signal according to the uplink signal detected by the detecting unit 501.
  • the tag unit 5022 is configured to generate the first signal according to the first pulse signal generated by the pulse generating unit 5021 and the identification information of the location card.
  • the relationship between the pulse amplitude of the first pulse signal and the signal strength of the uplink signal may be a preset proportional relationship; the first signal may be a pulse signal, and a pulse amplitude of the first signal The relationship with the signal strength of the uplink signal may also be a preset proportional relationship.
  • the location card 500 further includes a first signal receiving unit 503 and a second signal generating unit 504.
  • the first signal receiving unit 503 is configured to receive an indication signal sent by the reader, where the indication signal is used to instruct the location card to send the second signal.
  • a second signal generating unit 504 configured to generate the second signal, and send the second signal to At least one location card other than the location card.
  • the location card 500 further includes:
  • a second signal receiving unit 505 configured to receive a second signal sent by another location card
  • a third signal generating unit 506 configured to generate a third signal according to the second signal, and send the third signal to The reader.
  • the third signal carries the identification information of the location card and the another location card, and the third signal is used to indicate that the reader is based on the arrival time of the third signal and the The transmission time of the indication signal determines the relative distance between the location card and the other location card.
  • the determining, by the reader, the relative distance between the location card and the another location card according to the arrival time of the third signal and the sending time of the indication signal, refer to the related description in step 100d. .
  • the third signal generating unit 506 can be specifically configured to:
  • the third signal carries the identification information of the location card and the other location card. For details, refer to step 303.
  • step 100d For determining the relative distance between the location card and the other location card according to the arrival time of the third signal and the sending time of the indication signal, refer to the related description in step 100d.
  • the second signal may be an ultrasonic wave or an electromagnetic wave signal.
  • the identifier information may include a radio frequency identifier or a cell identifier.
  • the location card 500 may be used to perform the method of the embodiment shown in FIG. 1, or the steps performed by the first and second location cards in the embodiment shown in FIG. 3, where the implementation shown in FIG. 1 or FIG. The related description of each step in the example is also applicable to the embodiment, and will not be described again.
  • the location card provided by the embodiment of the present invention detects the uplink signal sent by the UE, and generates a first signal carrying the location card identifier according to the uplink signal, and sends the first signal to the reader to enable reading.
  • the device determines the location of the UE according to the first signal and the location of the location card, which not only greatly simplifies the prior art method for locating the user equipment, but also more accurately identifies the location of the UE.
  • the reader 600 is provided in the present embodiment.
  • the reader 600 is applied to a communication system.
  • the communication system further includes a location card and a signal transmission point.
  • the reader 600 includes: a signal receiving unit. 601 and UE positioning unit 602.
  • the signal receiving unit 601 is configured to receive the first signal sent by the location card, where the first signal is generated by the location card according to an uplink signal sent by the UE, and the first signal carries the Identification information of the location card.
  • the UE positioning unit 602 is configured to determine the location of the UE according to the first signal received by the signal receiving unit 601 and the location of the location card.
  • the signal receiving unit 601 may specifically be a pulse detector.
  • the UE positioning unit 602 can be specifically configured to:
  • the reader 600 further includes:
  • the location card locating unit 603 is configured to acquire a location of the location card.
  • the location card positioning unit 603 can be specifically configured to: Sending an indication signal, the indication signal is used to instruct another location card to send the second signal; receiving a third signal sent by the location card, the third signal carrying the location card and the another location card Identification information, the third signal is generated by the location card according to the second signal sent by the another location card;
  • the location of the location card is determined based on the actual distance between the other location card and any location card other than the location card and the other location card.
  • the determining the relative distance between the location card and the other location card according to the arrival time of the third signal and the transmission time of the indication signal can be referred to the related description in step 100d.
  • the reader 600 further includes:
  • the first sending unit 604 is configured to send a notification message to the network side device according to the number of the location cards that successfully detect the uplink signal and send the signal to the reader according to the uplink signal, where the notification message is used by the first sending unit 604. Instructing the network side device to adjust the transmit power of the UE; or sending a signal sent by the location card that successfully detects the uplink signal to the network side device, so that the network side device sends according to the reader The signal adjusts the transmit power of the UE.
  • the reader 600 further includes:
  • the second sending unit 605 is configured to send the location information of the UE determined by the UE positioning unit 601 to the network side device.
  • the reader 600 can be used to perform the method in the embodiment shown in Fig. 2, wherein the relevant description of the steps in the embodiment shown in Fig. 2 is equally applicable to the embodiment.
  • a network side device 700 provided by this embodiment includes: a receiving unit 701, a channel information determining unit 702, and a UE positioning unit 703.
  • the receiving unit 701 is configured to receive an uplink signal sent by the UE.
  • the channel information acquiring unit 702 is configured to acquire channel information of the UE according to the uplink signal received by the receiving unit 701.
  • the channel information may include RSRP or CSI.
  • the UE locating unit 703 is configured to determine the location of the UE according to the channel information of the UE acquired by the channel information acquiring unit 702 and the corresponding relationship between the preset channel information and the location information.
  • the UE positioning unit 703 may be specifically configured to:
  • the location information is determined by the first signal sent by the reader according to the location card, and the first signal is determined by the location card according to the UE Generated by the uplink signal sent;
  • network side device 700 can be used to perform the method in the embodiment shown in FIG. 4, wherein the related description of each step in the embodiment shown in FIG. 4 is also applicable to the embodiment.
  • the network side device determines the channel information of the UE according to the uplink signal of the UE, and determines the location of the UE according to the channel information of the UE and the corresponding relationship between the preset channel information and the location information.
  • the method further simplifies the method of locating the UE in the prior art.
  • a communication system 800 provided by this embodiment includes: a UE 801, a first location card 802, a reader 803, and a first signal transmission point 804.
  • the first location card 802 is configured to receive an uplink signal sent by the UE 801, generate a first signal according to the uplink signal, and send the first signal to the reader 803.
  • the first signal carries the identification information of the first location card 802, and the first signal is used to instruct the reader 803 to determine the location of the UE according to the first signal and the location of the first location card.
  • the reader 803 is configured to receive a first signal sent by the first location card 802, and determine a location of the UE according to the first signal and a location of the first location card.
  • the location card and the signal transmission point in the communication system 800 may be corresponding or non-corresponding.
  • the first location card 802 corresponds to the first signal transmission point 804, and the first location card 802. It may be built in or external to the first signal transmission point 804.
  • the communication system 800 further includes:
  • the network side device 805 is configured to receive an uplink signal sent by the UE 801, determine channel information of the UE 801 according to the uplink signal, and determine a location of the UE 801 according to the channel information of the UE 801 and the corresponding relationship between the channel information and the location information. .
  • the channel information may include RSRP or CSI.
  • the location information of the UE 801 is corrected according to the location information sent by the reader 803.
  • the correction method may specifically be an averaging method.
  • the correspondence between the preset channel information and the location information can be obtained by associating and saving the UE location information reported by the reader with the channel information.
  • network side device 805 can also be used to:
  • the communication system 800 further includes: a second location card 806, as described below.
  • the reader 803 is further configured to send an indication signal, the indication signal is used to indicate that the location card sends a signal.
  • the location card may include all location cards within the coverage of the reader signal.
  • the first location card 802 is further configured to receive the indication signal sent by the reader 803 and send the second signal to the second location card 806.
  • the second location card 806 is configured to receive a second signal sent by the first location card 802, generate a third signal according to the second signal, and send the third signal to the reader 803.
  • the third signal carries the identification information of the first location card 802 and the second location card 806, and the third signal is used to indicate the arrival time of the reader 803 according to the third signal and the indication.
  • the transmission time of the signal determines the relative distance between the first location card 802 and the second location card 806.
  • the reader 803 is further configured to receive a third signal sent by the second location card 806.
  • the first location card 802 and the second location card 806 are determined according to an arrival time of the third signal and a sending time of the indication signal.
  • the relative distance between the two; the position of the first location card 802 is determined based on the actual distance between the first location card 802 and any location card other than the second location card 806.
  • the reader 803 determines, according to the arrival time of the third signal and the sending time of the indication signal, the relative distance between the first location card 802 and the second location card 806. See the correlation in step 100d. description.
  • the first location card 802 can be used to perform the method in the embodiment shown in FIG. 1 or FIG. 3.
  • the reader 803 can be used to perform the method in the embodiment shown in FIG. 2.
  • the network side device 805 can The method in the embodiment shown in FIG. 4 is used; the second location card 806 can be used to perform the steps of performing the second location card in the embodiment shown in FIG. 3, and details are not described herein again.
  • the first location card sends the first signal carrying the identifier of the first location card to the reader according to the received uplink signal sent by the user equipment, and the reader according to the first signal and the first
  • the location of a location card determines the location of the UE, which not only greatly simplifies the prior art method of locating the UE, but also improves the accuracy of the UE location.
  • the embodiment provides a location card, where the location card is used in a communication system, the communication system further includes a signal transmission point and a reader, and the location card 900 includes: a receiver 901, Processor 902 and transmitter 903.
  • the receiver 901 is configured to receive and detect an uplink signal sent by the UE.
  • the processor 902 is configured to generate a first signal according to the uplink signal detected by the receiver 901.
  • the transmitter 903 is configured to send the first signal generated by the processor 902 to the reader.
  • the first signal carries the identification information of the location card 900, and the first signal is used to refer to The reader is shown to determine the location of the UE based on the first signal and the location of the location card 900.
  • the first signal may be a pulse signal or a non-pulse signal capable of reflecting the uplink signal strength, or may be a signal whose signal amplitude is a preset value, for example, a pulse amplitude of the first signal and the uplink.
  • the relationship between the signal strengths of the signals may be a preset proportional relationship, which is not limited herein.
  • the receiver 901 is further configured to receive an indication signal sent by the reader, where the indication signal is used to instruct the location card to send a second signal.
  • the processor 902 is further configured to generate the second signal
  • the transmitter 903 is further configured to send the second signal to at least one location card other than the location card.
  • the receiver 901 is further configured to receive a second signal sent by another location card; the processor 902 is further configured to generate a third signal according to the second signal;
  • the transmitter 903 is further configured to send the third signal to the reader.
  • the third signal carries the identification information of the location card 900 and the another location card, and the third signal is used to indicate the arrival time of the reader according to the third signal and the indication
  • the transmission time of the signal determines the relative distance between the location card 900 and the other location card.
  • the determining the relative distance between the location card 900 and the other location card according to the arrival time of the third signal and the transmission time of the indication signal can be referred to the related description in step 100d.
  • processor 902 can be specifically configured to:
  • the third signal carries identification information of the location card and the another location card.
  • the second signal may be an ultrasonic wave or an electromagnetic wave signal; the identifier information may include a radio frequency identifier or a cell identifier.
  • the location card 900 may be used to perform the method in the embodiment shown in FIG. 1 or FIG. 3, wherein the related descriptions of the steps in the embodiment shown in FIG. 1 or FIG. 3 are also applicable to the embodiment, and Let me repeat.
  • the location card provided by the embodiment of the present invention detects the uplink signal sent by the UE, and generates a first signal carrying the location card identifier according to the uplink signal, and sends the first signal to the reader to enable reading.
  • the device determines the location of the UE according to the location card identifier information carried by the first signal and the location of the location card, which not only greatly simplifies the prior art method for locating the user equipment, but also more accurately identifies the location of the UE.
  • a reader 1000 is provided in the embodiment of the present invention.
  • the reader 1000 is applied to a communication system.
  • the communication system further includes a location card and a signal transmission point.
  • the reader 1000 includes: a receiver. 1001 and processor 1002.
  • the receiver 1001 is configured to receive a first signal sent by the location card, where the first signal is generated by the location card according to an uplink signal sent by the UE, and the first signal carries the location Card identification information.
  • the processor 1002 is configured to determine a location of the UE according to the first signal received by the receiver 1001 and the location of the location card.
  • the receiver 1001 may specifically be a pulse detector.
  • processor 1002 can be specifically configured to:
  • the reader 1000 receives a signal sent by at least one location card other than the location card, and the signal is generated according to the uplink signal sent by the UE, according to the location of the location card And determining the location of the UE by the location of the at least one location card.
  • the processor 1002 is specifically configured to: acquire a location of the location card.
  • the acquiring the location of the location card may include: Sending an indication signal, the indication signal is used to instruct another location card to send the second signal; receiving a third signal sent by the location card, the third signal carrying the location card and the another location card Identification information, the third signal is generated by the location card according to the second signal sent by the another location card;
  • the location of the location card is determined based on the actual distance between the other location card and any location card other than the location card and the other location card.
  • the determining the relative distance between the location card and the other location card according to the arrival time of the third signal and the transmission time of the indication signal can be referred to the related description in step 100d.
  • the reader 1000 further includes:
  • the transmitter 1003 is configured to send the location information of the UE determined by the processor 1002 to the network side device.
  • reader 1000 can be used to perform the method in the embodiment shown in FIG. 2, wherein the relevant description of each step in the embodiment shown in FIG. 2 is equally applicable to the embodiment.
  • a network side device 1100 includes: a receiver 1101, a processor 1102, and a memory 1103.
  • the receiver 1101 is configured to receive an uplink signal sent by the UE.
  • the processor 1102 is configured to acquire channel information of the UE according to the uplink signal received by the receiver 1101.
  • the channel information may include RSRP or CSI.
  • the processor 1102 is further configured to determine a location of the UE according to the obtained channel information of the UE and a correspondence between preset channel information and location information stored in the memory 1103.
  • processor 1102 can be specifically configured to:
  • the location information is determined by the first signal sent by the reader according to the location card, and the first signal is determined by the location card according to the UE Generated by the uplink signal sent;
  • network side device 1100 can be used to perform the method in the embodiment shown in FIG. 4, wherein the related description of each step in the embodiment shown in FIG. 4 is also applicable to the embodiment.
  • the network side device determines the channel information of the UE according to the uplink signal of the UE, and determines the location of the UE according to the channel information of the UE and the corresponding relationship between the preset channel information and the location information.
  • the method further simplifies the method of locating the UE in the prior art.
  • a communication system provided by an embodiment of the present invention may include a location card 900 as shown in FIG. 9, and a reader 1000 shown in FIG.
  • the communication system may further include the network side device 1100 shown in FIG.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明公开了一种定位用户设备的方法、设备和系统。该方法应用于通信系统,所述通信系统包含位置卡、信号发射点和读取器,所述位置卡与所述信号发射点一一对应,且所述位置卡与所述位置卡对应的信号发射点之间的距离小于预设值,该方法包括:所述位置卡检测用户设备UE发送的上行信号;所述位置卡根据所述上行信号生成第一信号,并将所述第一信号发送给所述读取器,以使得所述读取器根据所述第一信号和所述位置卡的位置确定所述UE的位置。该方法不但简化了现有技术中定位用户设备的方法,还提高了定位UE的准确性。

Description

一种定位用户设备的方法、 设备和系统 技术领域
本发明涉及通信技术领域, 尤其涉及一种定位用户设备的方法、 设备和系 统。 背景技术
为了解决用户设备( user equipment, UE ) 的定位问题, 尤其是 UE的室内 定位,业界开展了大量的研究,例如,基于网络辅助 GPS( network assisted Global Positioning System ), 伪卫星 ( Pseudo-satellite )、 无线局域网 ( WLAN )、 蓝牙 ( Bluetooth, BT )等定位技术的研究。 在这些技术中, 一部分主要用于导航定 位, 例如伪卫星; 还有一部分主要用于提供通信服务, 但同时也能提供定位服 务, 例如 WLAN。
在现有通信系统中, 主要釆用的 UE定位方法有两种: 基于信道指紋定位 UE的方法和基于测量定位 UE的方法。 其中, 基于信道指紋定位 UE的方法需 要提前扫描各个地点的信道信息, 工作量巨大; 而基于测量定位 UE的方法, 由于多个天线均能够接收到 UE的上行信号, 无法准确识别出 UE与天线的距 离, 导致 UE定位不准确。
发明内容
本发明实施例提供一种定位用户设备的方法、 设备和系统, 能够提升用户 设备定位的精准度。
本发明的第一方面提供了一种定位用户设备的方法, 所述方法应用于通信 系统, 所述通信系统包含位置卡、 信号发射点和读取器, 所述方法包括: 所述 位置卡检测用户设备 UE发送的上行信号; 所述位置卡根据所述上行信号生成第 一信号, 并将所述第一信号发送给所述读取器; 其中, 所述第一信号携带有所 述位置卡的标识信息, 且所述第一信号用于指示所述读取器根据所述第一信号 和所述位置卡的位置确定所述 UE的位置。
结合第一方面, 在第一方面的第一种实现方式中, 所述位置卡根据所述上 行信号生成第一信号包括: 所述位置卡根据所述上行信号生成第一脉冲信号; 所述位置卡根据所述第一脉冲信号和所述位置卡的标识信息, 生成所述第一信 号。
结合第一方面或第一方面的第一种实现方式, 在第一方面的第二种实现方 式中, 所述第一信号为脉冲信号, 且所述第一信号的脉冲幅度与所述上行信号 的信号强度之间的关系是预设的比例关系。
结合第一方面或上述实现方式中的任一种, 在第一方面的第三种实现方式 中, 所述方法还包括: 所述位置卡接收所述读取器发送的指示信号, 所述指示 信号用于指示所述位置卡发送第二信号; 所述位置卡发送所述第二信号给除所 述位置卡之外的至少一个位置卡。
结合第一方面或第一种实现方式或第二种实现方式, 在第一方面的第四种 实现方式中, 所述方法还包括: 所述位置卡接收另一个位置卡发送的第二信号; 所述位置卡根据所述第二信号, 生成第三信号, 并将所述第三信号发送给所述 读取器; 其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信 息, 且所述第三信号用于指示所述读取器根据所述第三信号的到达时间以及所 述指示信号的发送时间,确定所述位置卡与所述另一个位置卡之间的相对距离。
结合第一方面的第四种实现方式, 在第一方面的第五种实现方式中, 所述 位置卡根据所述第二信号, 生成第三信号包括: 根据所述第二信号确定所述另 一个位置卡的标识信息, 并才艮据所述另一个位置卡和所述位置卡的标识信息和 所述第二信号, 生成所述第三信号; 或者, 通过将所述位置卡的标识信息携带 在所述第二信号中, 生成所述第三信号, 其中, 所述第二信号携带有所述另一 个位置卡的标识信息; 其中, 所述第三信号携带有所述位置卡和所述另一个位 置卡的标识信息。 结合第一方面的第三至第五种实现方式中的任一种, 在第一方面的第六种 实现方式中, 所述第二信号为超声波或电磁波信号。
结合第一方面或上述任一种实现方式, 在第一方面的第七种实现方式中, 所述标识信息包括射频标识或者小区标识。
本发明的第二方面提供了一种定位用户设备的方法, 所述方法应用于通信 系统, 所述通信系统包含位置卡、 信号发射点和读取器, 所述方法包括: 所述 读取器接收所述位置卡发送的第一信号, 其中, 所述第一信号是由所述位置卡 根据用户设备 UE发送的上行信号生成的,且所述第一信号携带有所述位置卡的 标识信息; 所述读取器根据所述第一信号和所述位置卡的位置, 确定所述 UE的 位置。
结合第二方面, 在第二方面的第一种实现方式中, 所述读取器根据所述第 一信号和所述位置卡的位置, 确定所述 UE的位置, 包括: 所述读取器根据所述 第一信号的信号强度, 确定所述位置卡与所述 UE之间的第一距离, 并根据所述 第一距离以及所述位置卡的位置, 确定所述 UE的位置; 或者, 所述读取器根据 所述第一信号获取所述位置卡的位置, 并根据所述位置卡的位置以及除所述位 置卡之外的至少一个位置卡的位置确定所述 UE的位置, 其中, 所述至少一个位 置卡为成功检测到所述 UE的所述上行信号,并根据所述上行信号发送信号给所 述读取器的位置卡; 或者, 所述读取器根据所述第一信号获取所述位置卡的位 置, 并根据所述 UE的移动轨迹和所述位置卡的位置确定所述 UE的位置。
结合第二方面或第二方面的第一种实现方式, 在第二方面的第二种实现方 式中, 所述方法还包括: 所述读取器根据成功检测到所述上行信号并根据所述 上行信号发送信号给所述读取器的位置卡的个数,发送通知消息给网络侧设备, 所述通知消息用于指示所述网络侧设备调整所述 UE的发射功率; 或者, 所述读 取器将成功检测到所述上行信号的位置卡根据所述上行信号发送的信号发送给 网络侧设备, 以使得网络侧设备根据所述读取器发送的信号调整所述 UE的发射 功率。 结合第二方面或第二方面的上述任一种实现方式, 在第二方面的第三种实 现方式中, 在所述读取器接收所述位置卡发送的第一信号之前, 所述方法还包 括: 所述读取器获取所述位置卡的位置。
结合第二方面的第三种实现方式, 在第二方面的第四种实现方式中, 所述 读取器获取所述位置卡的位置包括: 所述读取器发送指示信号, 所述指示信号 用于指示另一个位置卡发送第二信号; 所述读取器接收所述位置卡发送的第三 信号, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息, 所述 第三信号是由所述位置卡根据所述另一个位置卡发送的所述第二信号生成的; 所述读取器根据所述第三信号的到达时间和所述指示信号的发送时间, 确定所 述位置卡和所述另一个位置卡之间的相对距离; 所述读取器根据所述另一个位 置卡与除所述位置卡以及所述另一个位置卡之外的任一位置卡之间的实际距 离, 确定所述位置卡的位置。
结合第二方面或第二方面的上述任一种实现方式, 在第二方面的第三种实 现方式中, 所述方法还包括: 所述读取器将所述 UE的位置信息发送给网络侧设 备。
本发明的第三方面提供了一种定位用户设备的方法, 所述方法包括: 网络 侧设备接收用户设备 UE发送的上行信号; 所述网络侧设备根据所述上行信号确 定所述 UE的信道信息, 所述信道信息包括参考信号接收功率 RSRP或者信道状 态信息 CSI; 所述网络侧设备根据所述 UE的信道信息以及预设的信道信息与位 置信息的对应关系, 确定所述 UE的位置。
结合第三方面, 在第三方面的第一种实现方式中, 所述网络侧设备根据所 述 UE的信道信息以及预设的信道信息与位置信息的关系, 确定所述 UE的位置 包括: 所述网络侧设备接收读取器发送的所述 UE的位置信息, 所述位置信息是 由所述读取器根据位置卡发送的第一信号确定的 , 所述第一信号是由所述位置 卡根据所述 UE发送的所述上行信号生成的; 所述网络侧设备根据所述位置信 息, 所述 UE的信道信息以及预设的信道信息与位置信息的关系, 确定所述 UE 的位置。
本发明的第四方面提供了一种定位用户设备的设备, 所述设备是位置卡, 所述位置卡应用于通信系统中, 所述通信系统还包含信号发射点和读取器, 所 述位置卡包括: 检波单元, 用于检测用户设备 UE发送的上行信号; 第一信号发 生单元, 用于根据所述检波单元检测的上行信号生成第一信号, 并将所述第一 信号发送给所述读取器; 其中, 所述第一信号携带有所述位置卡的标识信息, 且所述第一信号用于指示所述读取器根据所述第一信号和所述位置卡的位置确 定所述 UE的位置。
结合第四方面, 在第四方面的第一种实现方式中, 所述第一信号发生单元 包括脉冲发生单元和标签单元, 其中, 所述脉冲发生单元, 用于根据所述检波 单元检测的上行信号生成第一脉冲信号; 所述标签单元, 用于根据所述脉冲发 生单元生成的所述第一脉冲信号和所述位置卡的标识信息,生成所述第一信号。
结合第四方面或第四方面的第一种实现方式, 在第四方面的第二种实现方 式中, 所述第一信号为脉冲信号, 且所述第一信号的脉冲幅度与所述上行信号 的信号强度之间的关系是预设的比例关系。
结合第四方面或第四方面的任一种实现方式, 在第四方面的第三种实现方 式中, 所述位置卡还包括: 第一信号接收单元, 用于接收所述读取器发送的指 示信号, 所述指示信号用于指示所述位置卡发送第二信号; 第二信号发生单元, 用于生成所述第二信号, 并发送所述第二信号给除所述位置卡之外的至少一个 位置卡。
结合第四方面或第四方面的第一种或第二种实现方式, 在第四方面的第四 种实现方式中, 还包括: 第二信号接收单元, 用于接收另一个位置卡发送的第 二信号; 第三信号发生单元,用于根据所述第二信号接收单元接收的第二信号, 生成第三信号, 并将所述第三信号发送给所述读取器; 其中, 所述第三信号携 带有所述位置卡和所述另一个位置卡的标识信息, 且所述第三信号用于指示所 述读取器根据所述第三信号的到达时间以及所述指示信号的发送时间, 确定所 述位置卡与所述另一个位置卡之间的相对距离。
结合第四方面的第四种实现方式, 在第四方面的第五种实现方式中, 所述 第三信号发生单元具体用于: 根据所述第二信号确定所述另一个位置卡的标识 信息, 并才艮据所述另一个位置卡和所述位置卡的标识信息和所述第二信号, 生 成所述第三信号; 或者,通过将所述位置卡的标识信息携带在所述第二信号中, 生成所述第三信号, 其中, 所述第二信号携带有所述另一个位置卡的标识信息; 其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息。
结合第四方面的第三至第五种实现方式中任一种, 在第四方面的第六种实 现方式中, 所述第二信号为超声波或电磁波信号。
结合第四方面或第四方面的任一种实现方式, 在第四方面的第七种实现方 式中, 所述标识信息包括射频标识或者小区标识。
本发明的第五方面提供了一种定位用户设备的设备, 所述设备为读取器, 所述读取器应用于通信系统中, 所述通信系统还包含位置卡和信号发射点, 所 述读取器包括: 信号接收单元, 用于接收所述位置卡发送的第一信号, 其中, 所述第一信号是由所述位置卡根据用户设备 UE发送的上行信号生成的,且所述 第一信号携带有所述位置卡的标识信息; UE定位单元, 用于根据所述信号接收 单元接收的所述第一信号和所述位置卡的位置, 确定所述 UE的位置。
结合第五方面, 在第五方面的第一种实现方式中, 所述 UE定位单元具体用 于:根据所述第一信号的信号强度,确定所述位置卡与所述 UE之间的第一距离, 并根据所述第一距离以及所述位置卡的位置, 确定所述 UE的位置; 或者, 根据 所述第一信号获取所述位置卡的位置, 并根据所述位置卡的位置以及除所述位 置卡之外的至少一个位置卡的位置确定所述 UE的位置, 其中, 所述至少一个位 置卡为成功检测到所述 UE的所述上行信号,并根据所述上行信号发送信号给所 述读取器的位置卡; 或者, 根据所述第一信号获取所述位置卡的位置, 并根据 所述 UE的移动轨迹和所述位置卡的位置确定所述 UE的位置。
结合第五方面或第五方面的第一种实现方式, 在第五方面的第二种实现方 式中, 还包括: 第一发送单元, 用于根据成功检测到所述上行信号并根据所述 上行信号发送信号给所述读取器的位置卡的个数,发送通知消息给网络侧设备, 所述通知消息用于指示所述网络侧设备调整所述 UE的发射功率; 或者, 将成功 检测到所述上行信号的位置卡根据所述上行信号发送的信号发送给网络侧设 备, 以使得网络侧设备根据所述读取器发送的信号调整所述 UE的发射功率。
结合第五方面或第五方面的任一种实现方式, 在第五方面的第三种实现方 式中, 还包括: 位置卡定位单元, 用于获取所述位置卡的位置。
结合第五方面的第三种实现方式, 在第五方面的第四种实现方式中, 所述 位置卡定位单元具体用于: 发送指示信号, 所述指示信号用于指示另一个位置 卡发送第二信号; 接收所述位置卡发送的第三信号, 所述第三信号携带有所述 位置卡和所述另一个位置卡的标识信息, 所述第三信号是由所述位置卡根据所 述另一个位置卡发送的所述第二信号生成的; 根据所述第三信号的到达时间和 所述指示信号的发送时间, 确定所述位置卡和所述另一个位置卡之间的相对距 离; 根据所述另一个位置卡与除所述位置卡以及所述另一个位置卡之外的任一 位置卡之间的实际距离, 确定所述位置卡的位置。
结合第五方面或第五方面的上述任一种实现方式, 在第五方面的第五种实 现方式中, 所述读取器还包括: 第二发送单元, 用于将所述 UE定位单元确定的 所述 UE的位置信息发送给网络侧设备。
本发明的第六方面提供了一种定位用户设备的设备, 所述设备为网络侧设 备, 所述网络侧设备包括: 接收单元, 用于接收用户设备 UE发送的上行信号; 信道信息获取单元,用于根据所述接收单元接收的所述上行信号确定所述 UE的 信道信息, 所述信道信息包括参考信号接收功率 RSRP或者信道状态信息 CSI; UE定位单元, 用于根据所述 UE的信道信息获取单元获取的所述信道信息以及 预设的信道信息与位置信息的对应关系, 确定所述 UE的位置。
结合第六方面, 在第六方面的第一种实现方式中, 所述 UE定位单元具体用 于: 接收读取器发送的所述 UE的位置信息, 所述位置信息是由所述读取器根据 位置卡发送的第一信号确定的,所述第一信号是由所述位置卡根据所述 UE发送 的所述上行信号生成的; 根据所述位置信息, 所述 UE的信道信息以及预设的信 道信息与位置信息的关系, 确定所述 UE的位置。
本发明的第七方面提供了一种通信系统, 包括: 用户设备 UE,第一位置卡, 读取器和信号发射点; 所述第一位置卡, 用于接收所述 UE发送的上行信号, 根 据所述上行信号生成第一信号, 并将所述第一信号发送给所述读取器, 所述第 一信号携带有所述第一位置卡的标识信息, 且所述第一信号用于指示所述读取 器根据所述第一信号和所述第一位置卡的位置确定所述 UE的位置; 所述读取 器, 用于接收所述第一位置卡发送的所述第一信号, 并根据所述第一信号和所 述第一位置卡的位置, 确定所述 UE的位置。
结合第七方面, 在第七方面的第一种实现方式中, 还包括网络侧设备, 所 述网络侧设备具体用于: 接收所述 UE发送的上行信号, 根据所述上行信号确定 所述 UE的信道信息, 并根据所述 UE的信道信息以及预设的信道信息与位置信 息的对应关系,确定所述 UE的位置,所述信道信息包括参考信号接收功率 RSRP 或者信道状态信息 CSI; 或者, 接收所述读取器发送的所述 UE的位置信息, 并 根据所述位置信息, 所述信道信息以及预设的信道信息与位置信息的关系, 确 定所述 UE的位置。
结合第七方面或第七方面的第一种实现方式, 在第七方面的第二种实现方 式中, 还包括: 第二位置卡; 所述读取器, 还用于发送指示信号, 所述指示信 号用于指示位置卡发送信号; 所述第一位置卡, 还用于接收所述读取器发送的 指示信号, 并发送第二信号给所述第二位置卡; 所述第二位置卡, 用于接收所 述第一位置卡发送的所述第二信号, 并根据所述第二信号生成第三信号, 并将 所述第三信号发送给所述读取器; 所述读取器, 还用于接收所述第二位置卡发 送的第三信号, 根据所述第三信号的到达时间和所述指示信号的发送时间确定 所述第一位置卡和所述第二位置卡之间的相对距离, 根据所述第一位置卡与除 所述第二位置卡之外的任一位置卡之间的实际距离, 确定所述第一位置卡的位 置。
由所述技术方案可知, 通过位置卡检测 UE发送的上行信号, 并根据所述 上行信号生成携带有位置卡标识的第一信号, 将所述第一信号发送给读取器, 以使得读取器根据第一信号携带的位置卡标识信息以及该位置卡的位置, 确定 UE的位置,不但能够大大简化了现有技术中定位用户设备的方法,还能够更加 准确的识别 UE的位置。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中所 需要使用的附图进行简单地介绍, 显而易见地, 下面描述中的附图是本发明的 一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种定位用户设备的方法流程图;
图 2为本发明实施例提供的另一种定位用户设备的方法流程图; 图 3为本发明实施例提供的又一种定位用户设备的方法流程图; 图 4为本发明实施例提供的又一种定位用户设备的方法流程图; 图 5为本发明实施例提供的一种位置卡的结构框图;
图 5a为本发明实施例提供的另一种位置卡的结构框图;
图 5b为本发明实施例提供的又一种位置卡的结构框图;
图 6为本发明实施例提供的一种读取器的结构框图;
图 6a为本发明实施例提供的另一种读取器的结构框图;
图 6b为本发明实施例提供的又一种读取器的结构框图;
图 7为本发明实施例提供的一种网络侧设备的结构框图;
图 8为本发明实施例提供的一种通信系统的示意图;
图 9为本发明实施例提供的一种位置卡的硬件结构框图;
图 10为本发明实施例提供的一种读取器的硬件结构框图; 图 11为本发明实施例提供的一种网络侧设备的硬件结构框图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅是本发明一部分实施例, 而不是全 部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创造性 劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
在本发明的实施例中 ,信号发射点可以是有源发射点 ,例如,接入点( access point, AP )、 室内小基站等; 信号发射点也可以是无源发射点, 例如, 分布式 天线系统(distributed antenna system, DAS ) 中的吸顶天线, 本发明中不予限 制。
位置卡( location card )可以是卡片, 模块或设备, 用于与读取器(reader ) 通信, 具体可以内置于或外置于信号发射点, 例如, 在一个信号发射点的信号 范围内布置多个位置卡, 显然也可以在一个信号发射点的信号范围内布置一个 位置卡。 此外, 位置卡布置的个数与 UE的定位准确性有关。
读取器可以是卡片, 模块或设备, 用于与位置卡和网络侧设备通信, 具体 可以内置于或外置于网络侧设备, 此外, 一个读取器可以与一个或多个网络侧 设备通信。其中,该网络侧设备具体可以^^站或接入控制器( access controller, AC )或基站控制器, 本发明中不予限制。
如图 1所示, 本发明实施例提供的一种定位用户设备的方法, 所述方法具 体应用于通信系统, 所述通信系统包含位置卡、 信号发射点和读取器, 所述方 法包括:
101、 位置卡检测 UE发送的上行信号。
102、位置卡根据所述上行信号生成第一信号, 并将所述第一信号发送给所 述读取器。
其中, 所述第一信号携带有所述位置卡的标识信息, 且所述第一信号用于 指示所述读取器根据所述第一信号和所述位置卡的位置确定所述 UE的位置。 其中, 所述标识信息可以包括射频标识 ( radio frequency identification, RFID )或者小区标识 (cell identification, Cell ID)„
需要明确的是, 位置卡的位置具体可以通过实地测试确定, 并预先设置在 读取器内; 也可以由读取器通过与位置卡的之间以及位置卡与位置卡之间的信 息交换来获得, 此处不予限制。
其中,第一信号可以为能够反应 UE的上行信号强度的脉冲信号或非脉冲信 号, 也可以为信号幅度固定的脉冲或非脉冲信号, 此处不予限制。 例如, 第一 信号可以为脉冲幅度与所述上行信号的信号强度成预设的比例关系的脉冲信 号, 也可以为脉冲幅度为预设幅度的脉冲信号。
具体地, 步骤 102中可以根据位置卡检测的上行信号直接生成第一信号,例 如, 通过将位置卡的信息携带在检测的上行信号中生成第一信号。
具体地, 步骤 102可以包括步骤 102a和 102b, 具体如下:
102a, 位置卡根据所述上行信号生成第一脉冲信号。
其中,所述第一脉冲信号的脉冲幅度与所述 UE发送的上行信号的信号强度 之间的关系可以是预设的比例关系, 即第一脉冲信号的脉冲幅度可以随着上行 信号的信号强度变化而变化。 例如, 当上行信号的信号强度增加时, 第一脉冲 信号的脉冲幅度增大, 当上行信号的信号强度减弱时, 第一脉冲信号的脉冲幅 度减小。 显然, 所述第一脉冲信号的脉冲幅度也可以为预设幅度, 该预设幅度 可以通过外部输入设备配置。
102b, 位置卡根据所述第一脉冲信号和所述位置卡的标识信息, 生成所述 第一信号。
其中, 第一信号可以为脉冲幅度与所述上行信号的信号强度成比例关系的 脉冲信号, 也可以为脉冲幅度为预设幅度的脉冲信号。
为了更好地理解本实施例提供的方法, 举例说明如下:
假设位置卡中包含检波器、脉冲发生器以及声表面波标签( surface acoustic wave tag, SAW tag ), 位置卡中的检波器对 UE发送的上行信号进行检测, 并通 过检波器的检测结果来控制脉冲发生器生成第一脉冲信号, 其中, 该第一脉冲 信号的脉冲能量可以相同, 也可以不同; 然后, 第一脉冲信号经过 SAW tag中 预置的隔栅发送给读取器。 其中, SAW tag发送给读取器的信号携带有位置卡 的 RF ID。
进一步地, 读取器检测上述位置卡发送的信号, 根据检测到的位置卡的信 号来判断 UE距离哪些或哪个位置卡比较近, 以确定 UE的位置。 当然, 为了 UE 的位置精确定位, 在此基础上可以通过计算 UE与位置卡之间的距离或者 UE的 移动轨迹来确定 UE的位置。
本发明实施例提供的定位用户设备的方法,通过位置卡检测 UE发送的上 行信号, 并根据所述上行信号生成携带有位置卡标识的第一信号,将所述第一 信号发送给读取器, 以使得读取器根据第一信号以及该位置卡的位置, 确定 UE的位置, 不但能够大大简化了现有技术中定位用户设备的方法, 还能够更 加准确的识别 UE的位置。
可选地, 在本实施例的一种实施场景下, 所述方法还包括:
100a, 所述位置卡接收所述读取器发送的指示信号, 所述指示信号用于指 示所述位置卡发送第二信号。
其中, 所述第二信号可以为超声波或电磁波信号; 此外, 所述第二信号可 以通过频率或者标识唯一识别。
100b、 所述位置卡发送所述第二信号给除所述位置卡之外的至少一个位置 卡。
其中, 步骤 100a、 100b与步骤 101、 102之间可以不分先后来执行, 此处不 做限制。
其中, 所述第二信号可以携带有所述位置卡的第一标识, 该第一标识可以 是上述位置卡的标识信息, 也可以是其它用于识别上述位置卡的标识, 此处不 予限制。 在上述实施场景下, 位置卡通过发送第二信号给其它的位置卡, 以使得其 它的位置卡对第二信号进行处理后发送给读取器, 从而使得读取器能够根据该 信号确定各位置卡之间的距离,不但避免了人工确定位置卡之间距离的复杂性, 还提升了位置卡的位置定位准确性。
可选地, 在本实施例的另一种实施场景下, 所述方法还包括:
100c、 所述位置卡接收另一个位置卡发送的第二信号。
其中, 所述第二信号可以为超声波或电磁波信号; 所述第二信号可以携带 有所述另一个位置卡的第一标识, 该第一标识可以是上述另一个位置卡的标识 信息, 也可以是除标识信息之外, 且能够唯一识别上述另一个位置卡的标识, 此处不予限制。
100d、 所述位置卡根据所述第二信号, 生成第三信号, 并将所述第三信号 发送给所述读取器。
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息, 且所述第三信号用于指示所述读取器根据所述第三信号的到达时间以及所述指 示信号的发送时间, 确定所述位置卡与所述另一个位置卡之间的相对距离。
其中, 所述读取器根据所述第三信号的到达时间以及所述指示信号的发送 时间, 确定所述位置卡与所述另一个位置卡之间的相对距离, 可以举例说明如 下。
首先, 通过读取器与所述位置卡之间的信号交互, 获得两者之间信号传输 的时间长度; 然后, 通过步骤 100c和 100d获得所述另一个位置卡发送的信号经 所述位置卡到读取器的传输时间长度; 两者之差就可以获知信号在所述位置卡 和所述另一个位置卡之间传输的时间长度, 进而获得上述两个位置卡之间的相 对巨离。
具体地, 步骤 100d中所述位置卡根据所述第二信号, 生成第三信号可以包 括:
才艮据所述第二信号确定所述另一个位置卡的标识信息, 并才艮据所述另一个 位置卡和所述位置卡的标识信息和所述第二信号, 生成所述第三信号; 或者, 通过将所述位置卡的标识信息携带在所述第二信号中,生成所述第三信号, 其中, 所述第二信号携带有所述另一个位置卡的标识信息。
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息。 例如, 第二信号可以携带有所述另一个位置卡的第一标识, 所述位置卡根 据该第一标识和预先存储的位置卡标识信息, 确定所述另一个位置卡的标识信 息, 并根据所述另一个位置卡和所述位置卡的标识信息和所述第二信号, 生成 所述第三信号。
在上述实施场景下, 位置卡接收其它的位置卡发送的第二信号, 该位置卡 将接收到的第二信号进行处理后发送给读取器, 以使得读取器根据第二信号确 定位置卡之间的距离。 如图 2所示,本发明实施例提供的另一种定位用户设备的方法,所述方法应 用于通信系统, 所述通信系统包含位置卡、 信号发射点和读取器, 所述方法具 体如下所述。
201、读取器接收位置卡发送的第一信号, 其中, 所述第一信号是由所述位 置卡根据 UE发送的上行信号生成的 ,且所述第一信号携带有所述位置卡的标识 信息。
202、读取器根据所述第一信号和所述位置卡的位置, 确定所述 UE的位置。 其中, 所述位置卡的位置可以参见步骤 102中的相关描述, 不再赘述。
具体地, 步骤 202可以釆用如下三种实现方式:
方式一、 所述读取器根据所述第一信号的信号强度, 确定所述位置卡与所 述 UE之间的第一距离, 并根据所述第一距离以及所述位置卡的位置, 确定所述 UE的位置。
方式二、 所述读取器根据所述第一信号获取所述位置卡的位置, 并根据所 述位置卡的位置以及除所述位置卡之外的至少一个位置卡的位置,确定所述 UE 的位置, 其中, 所述至少一个位置卡为成功检测到所述 UE的所述上行信号, 并 根据所述上行信号发送信号给所述读取器的位置卡。
具体地,方式一和方式二均可以应用在预设时间段内所述 UE对应的基站或 服务小区覆盖范围内仅有所述 UE发送上行信号的情况下, 例如, 一个基站对应 一个读取器,在预设时间段内该基站的信号覆盖范围内只有一个 UE发送上行信 号, 该读取器接收到位置卡根据该上行信号发送的信号, 此时, 读取器通过位 置卡发送的信号以及位置卡的位置来确定该 UE的位置。 此外, 具体可以通过基 站的调度信息来确定是否仅有一个 UE发送的上行信号, 此处不再赘述。
其中, 方式二中根据所述位置卡的位置以及除所述位置卡之外的至少一个 位置卡的位置, 属于现有技术, 例如, 重心法, 不再赘述。
方式三、 所述读取器根据所述第一信号获取所述位置卡的位置, 并根据所 述 UE的移动轨迹和所述位置卡的位置, 确定所述 UE的位置。
其中, UE的移动轨迹可以包括 UE的移动方向, 移动速度等, 不予限制; 此外,方式三可以用于基站或服务小区覆盖范围内同时存在多个 UE发送上行信 号的情况下。 例如, 首先可以通过上述步骤 202中的方式一或方式二获得 UE的 位置作为该 UE的初始位置, 并根据该 UE的移动轨迹以及该初始位置估算该 UE 的位置。
本发明实施例提供的定位用户设备的方法, 通过读取器接收位置卡发送的 携带有位置卡标识的第一信号, 并根据所述第一信号和所述位置卡的位置, 确 定所述 UE的位置, 不但能够大大简化了现有技术中定位用户设备的方法, 还能 够更加准确的识别 UE的位置。
可选地, 在本实施例的一种实施场景下, 在所述读取器接收所述位置卡发 送的第一信号之前, 所述方法还包括:
200、 所述读取器获取所述位置卡的位置。
具体地, 步骤 200可以包括:
所述读取器发送指示信号给所述位置卡, 所述指示信号用于指示另一个位 置卡发送第二信号;
所述读取器接收所述位置卡发送的第三信号, 所述第三信号携带有所述位 置卡和所述另一个位置卡的标识信息, 所述第三信号是由所述位置卡根据所述 另一个位置卡发送的所述第二信号生成的;
所述读取器根据所述第三信号的到达时间和所述指示信号的发送时间, 确 定所述位置卡和所述另一个位置卡之间的相对距离;
所述读取器根据所述另一个位置卡与除所述位置卡以及所述另一个位置卡 之外的任一位置卡之间的实际距离, 确定所述位置卡的位置。
其中, 上述指示信号可以通过基站发送消息通知读取器发送, 也可以通过 读取器或者信号发射点检测 UE的上行信号来触发发送, 不再——举例。
其中, 实际距离可以称为物理距离, 所述另一个位置卡之外的任一位置卡 之间的实际距离可以通过实地测量获得, 也可以通过除上述提及的位置卡之外 的两个位置卡之间的实际距离获得, 不予限制。
在上述实施例场景下, 通过位置卡之间的信号传输时延来确定位置卡之间 的距离, 仅通过实际测量或其它现有技术获知任意两个位置卡之间的实际距离 后, 其它位置卡的位置就可以通过上述方法获得, 不但避免了人工确定多个位 置卡之间距离的复杂性, 还提升了位置卡定位的准确性, 从而提升 UE定位的准 确性。
可选地, 在本实施例的另一种实施场景下, 所述方法还包括:
203、 所述读取器将所述 UE的位置信息发送给网络侧设备。
其中, 所述 UE的位置信息可以用于所述网络侧设备将所述 UE的位置信息 与所述 UE占用的信道信息相关联,也可以用于所述网络侧设备使用所述读取器 发送的位置信息对网络侧设备获得的 UE位置进行校正, 此处不予限制。
其中, 所述信道信息可以包括参考信号接收功率 (reference signal received power, RSRP)或者信道状态信息 ( channel state information, CSI )„
其中, 该网络侧设备可以为基站或接入控制器或基站控制器, 此处不予限 制。
在上述实施场景下, 读取器将 UE的位置信息发送给网络侧设备, 以使得网 络侧设备能够将信道信息与位置信息关联并保存起来,从而使得后续接入的 UE 能够直接通过该后续接入的 UE占用信道的信道信息以及保存的信道信息与位 置信息关联关系来确定该后续接入的 UE的位置。
可选地, 在本实施例的又一种实施场景下, 在步骤 202之后, 所述方法还包 括:
所述读取器根据成功检测到所述上行信号并根据所述上行信号发送信号给 所述读取器的位置卡的个数, 发送通知消息给网络侧设备, 所述通知消息用于 指示所述网络侧设备调整所述 UE的发射功率; 或者,
所述读取器将成功检测到所述上行信号的位置卡发送的信号发送给网络侧 设备, 以使得网络侧设备根据所述读取器发送的信号调整所述 UE的发射功率。
其中,当上述成功检测到所述上行信号的位置卡个数低于预设第一门限时, 可以发送消息通知网络侧设备增加 UE的发射功率, 以使得更多的位置卡检测到 UE的上行信号, 从而提高 UE位置定位的准确性; 当上述成功检测到所述上行 信号的位置卡个数高于预设第二门限时,可以发送消息通知网络侧设备降低 UE 的发射功率, 以减少检测到 UE上行信号的位置卡个数, 避免了过多的位置卡发 送信号引发的干扰增大问题。显然,读取器可以直接将信号发送给网络侧设备, 由网络侧设备确定是否需要调整 UE的发射功率, 以及如何调整。 如图 3所示,本发明实施例提供的又一种定位用户设备的方法,所述方法应 用于通信系统, 所述通信系统包含位置卡、 信号发射点和读取器。 下面以位置 卡至少包括第一位置卡、 第二位置卡和第三位置卡, 且第一位置卡与第三位置 卡之间的实际距离已获知为例进行说明, 具体如下所述。
301、 读取器发送指示信号, 所述指示信号用于指示位置卡发送信号。
其中, 所述信号可以为超声波或电磁波信号, 所述信号可以通过频率或者 标识唯一识别。 上述位置卡可以是读取器信号覆盖范围内的所有位置卡。
302、第一位置卡接收所述读取器发送的指示信号,并发送第二信号给第二 位置卡。
303、第二位置卡根据所述第一位置卡发送的第二信号生成第三信号,并将 所述第三信号发送给所述读取器。
其中,所述第三信号携带有所述第一位置卡和所述第二位置卡的标识信息, 且所述第三信号用于指示所述读取器根据所述第三信号的到达时间以及所述指 示信号的发送时间, 确定所述第一位置卡与所述第二位置卡之间的相对距离。
具体地, 步骤 303可以包括:
根据所述第一位置卡发送的第二信号确定所述第一位置卡的标识信息, 并 通过根据所述第一位置卡和所述第二位置卡的标识信息和所述第二信号中, 生 成所述第三信号; 或者,
通过将所述第二位置卡的标识信息携带在所述第二信号中, 生成所述第三 信号, 其中, 所述第二信号携带有所述第一位置卡的标识信息。
其中,所述第三信号携带有所述第一位置卡和所述第二位置卡的标识信息。 例如, 所述第二信号携带有所述第一位置卡的标识信息, 将所述第二位置 卡的标识信息携带在所述第二信号中, 生成所述第三信号。 再例如, 第二位置 卡通过第二信号的频率识别第一位置卡, 并将第一位置卡和第二位置卡的标识 信息携带在第二信号中, 生成第三信号。
其中 , 所述根据所述第三信号的到达时间以及所述指示信号的发送时间 , 确定所述第一位置卡与所述第二位置卡之间的相对距离具体可以参见步骤 100d 中的相关描述。
304、 所述读取器接收所述第二位置卡发送的第三信号。
305、 所述读取器根据所述第三信号的到达时间和所述指示信号的发送时 间, 确定所述第一位置卡和所述第二位置卡之间的相对距离。
其中, 步骤 305具体可以参见步骤 100d中的相关描述。 306、所述读取器根据所述第一位置卡与第三位置卡之间的实际距离,确定 所述第二位置卡的位置。
其中, 所述第一位置卡与第三位置卡之间的实际距离可以通过实际测量获 得, 并预先设置在读取器内部, 此处, 对于实际距离的获取方式不予限制。
例如,步骤 306中可以根据位置卡的拓朴图以及所述第一位置卡与第三位置 卡之间的实际距离, 确定所述第二位置卡的位置。
307、 所述第二位置卡检测 UE发送的上行信号。
308、所述第二位置卡根据所述上行信号生成第一信号,并将所述第一信号 发送给所述读取器。
其中, 所述第一信号携带所述第二位置卡的标识信息, 该标识信息包含 RF ID或 Cell ID。
其中, 步骤 308的具体实现方式可以参见步骤 102中的相关描述, 不再赘述。
309、 所述读取器接收所述第二位置卡发送的第一信号。
310、 所述读取器根据所述第一信号和所述第二位置卡的位置, 确定所述 UE的位置。
其中, 步骤 301的具体实现方式可以参见步骤 202中的相关描述。
本发明实施例提供的定位用户设备的方法, 通过位置卡之间发送信号来确 定位置卡的位置, 降低了位置卡位置确定的复杂性; UE发送的上行信号触发已 确定位置的位置卡发送信号给读取器, 使得读取器根据接收的信号以及已确定 位置的位置卡的位置来定位 UE, 降低了 UE定位的复杂度。 如图 4所示,本发明实施例提供的又一种定位用户设备的方法,该方法由网 络侧设备执行, 具体如下所述。
401、 网络侧设备接收 UE发送的上行信号。
402、 网络侧设备根据所述上行信号, 确定所述 UE的信道信息。
其中, 所述信道信息可以包括 RSRP或者 CSI。 403、 网络侧设备根据所述 UE的信道信息以及预设的信道信息与位置信息 的对应关系, 确定所述 UE的位置。
例如, 基站获得 UE的信道信息后, 根据预设的信道信息与位置信息的对应 关系,查找到对应的位置信息,该对应的位置信息可以作为上述 UE的位置信息。
可选地, 步骤 403具体可以包括步骤 403a和 403b。
403a, 所述网络侧设备接收读取器发送的所述 UE的位置信息。
其中, 所述位置信息可以是由所述读取器根据位置卡发送的第一信号确定 的, 即釆用图 3所示的方法来获取; 所述第一信号是由所述位置卡根据所述 UE 发送的所述上行信号生成的, 此处不再赘述。
需要说明的是,位置卡、读取器具体可以参见图 1所示实施例中的相关描述。
403b, 所述网络侧设备根据所述读取器发送的位置信息, 所述 UE的信道信 息以及预设的信道信息与位置信息的关系, 确定所述 UE的位置。
例如,通过根据 UE的信道信息查找预设的信道信息与位置信息的对应关系 表, 获得 UE的位置信息; 再根据读取器发送的位置信息对查找获得的 UE的位 置信息进行校正。 其中, 校正方式具体可以为平均法, 属于现有技术。
需要说明的是,步骤 403中预设的信道信息与位置信息的对应关系可以通过 将读取器上报的 UE位置信息与信道信息关联并保存来获得。
本发明实施例提供的定位用户设备的方法, 网络侧设备根据 UE的上行信号 确定 UE的信道信息, 再根据所述 UE的信道信息以及预设的信道信息与位置信 息的对应关系, 确定所述 UE的位置, 该方法进一步简化了现有技术中定位 UE 的方法。 下面图 5-7实施例, 以及图 9-11实施例分别以位置卡, 读取器或者网络侧设 备为例, 描述了一种定位用户设备的设备。
如图 5所示,本发明实施例提供的一种位置卡 500,位置卡 500应用于通信系 统中 ,所述通信系统还包含信号发射点和读取器,位置卡 500包括:检波单元 501、 第一信号发生单元 502。
检波单元 501 , 用于检测 UE发送的上行信号。
第一信号发生单元 502 , 用于根据检波单元 501检测的上行信号生成第一信 号, 并将所述第一信号发送给所述读取器。
其中, 所述第一信号携带有位置卡 500的标识信息,且所述第一信号用于指 示所述读取器根据所述第一信号和位置卡 500的位置确定所述 UE的位置。 所述 第一信号的具体说明可以参见图 1所示实施例中的相关描述, 不再赘述。
需要指出的是, 上述检波单元 501具体可以是检波器。
可选地, 第一信号发生单元 502可以包括脉冲发生单元 5021和标签单元 5022, 具体如下所述。
脉冲发生单元 5021 ,用于根据检波单元 501检测的上行信号生成第一脉冲信 号。
标签单元 5022, 用于根据脉冲发生单元 5021生成的所述第一脉冲信号和所 述位置卡的标识信息, 生成所述第一信号。 可以是 SAW tag。 即通过检波器检测 UE的上行信号, 并使用检波器的输出信号 控制脉冲发生器生成脉冲信号,之后将生成的脉冲信号通过 SAW tag发送给读取 器。
其中, 所述第一脉冲信号的脉冲幅度与所述上行信号的信号强度之间的关 系可以是预设的比例关系; 所述第一信号可以为脉冲信号, 且所述第一信号的 脉冲幅度与所述上行信号的信号强度之间的关系同样可以是预设的比例关系。
可选地, 如图 5a所示, 位置卡 500还包括第一信号接收单元 503 , 第二信号 发生单元 504。
第一信号接收单元 503 ,用于接收所述读取器发送的指示信号,所述指示信 号用于指示所述位置卡发送第二信号。
第二信号发生单元 504 ,用于生成所述第二信号,并发送所述第二信号给除 所述位置卡之外的至少一个位置卡。
可选地, 如图 5b所示, 位置卡 500还包括:
第二信号接收单元 505 , 用于接收另一个位置卡发送的第二信号; 第三信号发生单元 506, 用于根据所述第二信号, 生成第三信号, 并将所述 第三信号发送给所述读取器。
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息, 且所述第三信号用于指示所述读取器根据所述第三信号的到达时间以及所述指 示信号的发送时间, 确定所述位置卡与所述另一个位置卡之间的相对距离。
其中, 所述读取器根据所述第三信号的到达时间以及所述指示信号的发送 时间, 确定所述位置卡与所述另一个位置卡之间的相对距离可以参见步骤 100d 中的相关描述。
其中, 第三信号发生单元 506具体可以用于:
才艮据所述第二信号确定所述另一个位置卡的标识信息, 并才艮据所述另一个 位置卡和所述位置卡的标识信息和所述第二信号, 生成所述第三信号; 或者, 通过将所述位置卡的标识信息携带在所述第二信号中,生成所述第三信号, 其中, 所述第二信号携带有所述另一个位置卡的标识信息。
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息, 具体描述可以参见步骤 303。
其中 , 所述根据所述第三信号的到达时间以及所述指示信号的发送时间 , 确定所述位置卡与所述另一个位置卡之间的相对距离具体可以参见步骤 100d中 的相关描述。
其中, 所述第二信号可以为超声波或电磁波信号。
其中, 所述标识信息可以包括射频标识或者小区标识。
需要指出的是, 上述位置卡 500可以用于执行图 1所示实施例的方法, 或者 或图 3所示实施例中第一、二位置卡执行的步骤,其中图 1或图 3所示实施例中各 步骤的相关描述同样适用于本实施例, 不再赘述。 本发明实施例提供的位置卡, 通过检测 UE发送的上行信号, 并根据所述 上行信号生成携带有位置卡标识的第一信号, 将所述第一信号发送给读取器, 以使得读取器根据第一信号以及该位置卡的位置, 确定 UE的位置, 不但能够 大大简化了现有技术的定位用户设备方法,还能够更加准确的识别 UE的位置。 如图 6所示,本实施例提供的一种读取器 600,读取器 600应用于通信系统中, 所述通信系统还包含位置卡和信号发射点, 读取器 600包括: 信号接收单元 601 和 UE定位单元 602。
信号接收单元 601 , 用于接收所述位置卡发送的第一信号, 其中, 所述第一 信号是由所述位置卡根据 UE发送的上行信号生成的,且所述第一信号携带有所 述位置卡的标识信息。
UE定位单元 602,用于根据信号接收单元 601接收的第一信号和所述位置卡 的位置, 确定所述 UE的位置。
其中, 信号接收单元 601具体可以是脉冲检测器。
进一步地, UE定位单元 602具体可以用于:
根据所述第一信号的信号强度, 确定所述位置卡与所述 UE之间的第一距 离, 并根据所述第一距离以及所述位置卡的位置, 确定所述 UE的位置; 或者, 根据所述第一信号获取所述位置卡的位置, 并根据所述位置卡的位置以及 除所述位置卡之外的至少一个位置卡的位置确定所述 UE的位置, 其中, 所述至 少一个位置卡为成功检测到所述 UE的所述上行信号,并根据所述上行信号发送 信号给所述读取器的位置卡; 或者,
根据所述第一信号获取所述位置卡的位置,并根据所述 UE的移动轨迹和所 述位置卡的位置确定所述 UE的位置。
可选地, 如图 6a所示, 读取器 600还包括:
位置卡定位单元 603 , 用于获取所述位置卡的位置。
进一步地, 位置卡定位单元 603具体可以用于: 发送指示信号, 所述指示信号用于指示另一个位置卡发送第二信号; 接收所述位置卡发送的第三信号, 所述第三信号携带有所述位置卡和所述 另一个位置卡的标识信息, 所述第三信号是由所述位置卡根据所述另一个位置 卡发送的所述第二信号生成的;
根据所述第三信号的到达时间和所述指示信号的发送时间, 确定所述位置 卡和所述另一个位置卡之间的相对距离;
根据所述另一个位置卡与除所述位置卡以及所述另一个位置卡之外的任一 位置卡之间的实际距离, 确定所述位置卡的位置。
其中, 所述根据所述第三信号的到达时间和所述指示信号的发送时间, 确 定所述位置卡和所述另一个位置卡之间的相对距离可以参见步骤 100d中的相关 描述。
可选地, 读取器 600还包括:
第一发送单元 604,用于根据成功检测到所述上行信号并根据所述上行信号 发送信号给所述读取器的位置卡的个数, 发送通知消息给网络侧设备, 所述通 知消息用于指示所述网络侧设备调整所述 UE的发射功率; 或者, 将成功检测到 所述上行信号的位置卡发送的信号发送给网络侧设备, 以使得网络侧设备根据 所述读取器发送的信号调整所述 UE的发射功率。
可选地, 如图 6b所示, 读取器 600还包括:
第二发送单元 605 , 用于将 UE定位单元 601确定的所述 UE的位置信息发送 给网络侧设备。
需要指出的是,读取器 600可以用于执行图 2所示实施例中的方法,其中图 2 所示实施例中各步骤的相关描述同样适用于本实施例。
本发明实施例提供的读取器, 通过接收位置卡发送的携带有位置卡标识的 第一信号, 并根据所述第一信号携带的位置卡标识和所述位置卡的位置, 确定 所述 UE的位置, 不但能够大大简化了现有技术中定位用户设备的方法, 还能够 更加准确的识别 UE的位置。 如图 7所示, 本实施例提供的一种网络侧设备 700, 包括: 接收单元 701、 信 道信息确定单元 702和 UE定位单元 703。
接收单元 701 , 用于接收 UE发送的上行信号。
信道信息获取单元 702, 用于根据接收单元 701接收的所述上行信号获取所 述 UE的信道信息。
其中, 所述信道信息可以包括 RSRP或者 CSI。
UE定位单元 703 , 用于根据信道信息获取单元 702获取的所述 UE的信道信 息以及预设的信道信息与位置信息的对应关系, 确定所述 UE的位置。
进一步地, UE定位单元 703具体可以用于:
接收读取器发送的所述 UE的位置信息,所述位置信息是由所述读取器根据 位置卡发送的第一信号确定的,所述第一信号是由所述位置卡根据所述 UE发送 的所述上行信号生成的;
根据所述位置信息,所述 UE的信道信息以及预设的信道信息与位置信息的 关系, 确定所述 UE的位置。
需要指出的是, 网络侧设备 700可以用于执行图 4所示实施例中的方法, 其 中图 4所示实施例中各步骤的相关描述同样适用于本实施例。
本发明实施例提供的网络侧设备, 根据 UE的上行信号确定 UE的信道信息, 再根据所述 UE的信道信息以及预设的信道信息与位置信息的对应关系,确定所 述 UE的位置, 该方法进一步简化了现有技术中定位 UE的方法。 如图 8所示, 本实施例提供的一种通信系统 800, 包括: UE801 , 第一位置 卡 802, 读取器 803和第一信号发射点 804。
第一位置卡 802, 用于接收 UE801发送的上行信号, 根据所述上行信号生成 第一信号, 并将所述第一信号发送给读取器 803。
其中, 所述第一信号携带有第一位置卡 802的标识信息,且所述第一信号用 于指示读取器 803根据所述第一信号和第一位置卡的位置确定所述 UE的位置。 读取器 803 , 用于接收第一位置卡 802发送的第一信号, 并根据所述第一信 号和第一位置卡的位置, 确定所述 UE的位置。
其中,通信系统 800中的位置卡与信号发射点可以是——对应的,也可以是 不对应的, 例如, 第一位置卡 802与第一信号发射点 804之间对应, 第一位置卡 802可以内置于或外置于第一信号发射点 804。
可选地, 如图 8a所示, 通信系统 800还包括:
网络侧设备 805 , 用于接收 UE801发送的上行信号, 根据所述上行信号确定 UE801的信道信息, 并根据所述 UE801的信道信息以及预设的信道信息与位置 信息的对应关系, 确定 UE801的位置。
其中, 所述信道信息可以包括 RSRP或者 CSI。
具体地, 根据预设的信道信息与位置信息的对应关系, 查找到 UE801的位 置信息后,再根据读取器 803发送的位置信息对查找获得的 UE801的位置信息进 行校正。 其中, 校正方式具体可以为平均法。
需要说明的是, 预设的信道信息与位置信息的对应关系可以通过将读取器 上报的 UE位置信息与信道信息关联并保存来获得的。
进一步地, 网络侧设备 805还可以用于:
接收读取器 803发送的 UE801的位置信息, 并根据所述位置信息, 所述 UE801的信道信息以及预设的信道信息与位置信息的关系, 确定 UE801的位置。
可选地, 如图 8b所示, 通信系统 800还包括: 第二位置卡 806, 具体如下所 述。
读取器 803 ,还用于发送指示信号,所述指示信号用于指示位置卡发送信号。 其中, 上述位置卡可以包括读取器信号覆盖范围内的所有位置卡。
第一位置卡 802, 还用于接收读取器 803发送的指示信号, 并发送第二信号 给第二位置卡 806。
第二位置卡 806, 用于接收第一位置卡 802发送的第二信号, 并根据所述第 二信号, 生成第三信号, 并将所述第三信号发送给读取器 803。 其中, 所述第三信号携带有第一位置卡 802和第二位置卡 806的标识信息, 且所述第三信号用于指示读取器 803根据所述第三信号的到达时间以及所述指 示信号的发送时间, 确定第一位置卡 802与第二位置卡 806之间的相对距离。
读取器 803 , 还用于接收第二位置卡 806发送的第三信号; 根据所述第三信 号的到达时间和所述指示信号的发送时间, 确定第一位置卡 802和第二位置卡 806之间的相对距离;根据第一位置卡 802与除第二位置卡 806之外的任一位置卡 之间的实际距离, 确定第一位置卡 802的位置。
其中 ,所述读取器 803根据所述第三信号的到达时间以及所述指示信号的发 送时间, 确定第一位置卡 802与第二位置卡 806之间的相对距离可以参见步骤 100d中的相关描述。
需要说明的是, 第一位置卡 802可以用于执行图 1或图 3所示实施例中的方 法; 读取器 803可以用于执行图 2所示实施例中的方法; 网络侧设备 805可以用于 执行图 4所示实施例中的方法;第二位置卡 806可以用于执行图 3所示实施例中第 二位置卡执行的步骤, 此处不再赘述。
本发明实施例提供的通信系统, 第一位置卡根据接收到的用户设备发送的 上行信号发送携带有第一位置卡标识的第一信号给读取器, 读取器根据第一信 号以及该第一位置卡的位置确定 UE的位置,不但能够大大简化了现有技术的定 位 UE的方法, 还能够提升 UE定位的准确性。 如图 9所示, 本实施例提供一种位置卡, 所述位置卡应用于通信系统中, 所 述通信系统还包含信号发射点和读取器, 所述位置卡 900包括: 接收器 901、 处 理器 902和发射器 903。
接收器 901 , 用于接收并检测 UE发送的上行信号。
处理器 902 , 用于根据接收器 901检测的上行信号生成第一信号。
发射器 903 , 用于将处理器 902生成的第一信号发送给所述读取器。
其中, 所述第一信号携带有位置卡 900的标识信息,且所述第一信号用于指 示所述读取器根据所述第一信号和位置卡 900的位置确定所述 UE的位置。
其中, 所述第一信号可以为能够反应所述上行信号强度的脉冲信号或非脉 冲信号, 也可以是信号幅度为预设值的信号, 例如, 所述第一信号的脉冲幅度 与所述上行信号的信号强度之间的关系可以是预设的比例关系,此处不予限制。
可选地, 接收器 901 , 还用于接收所述读取器发送的指示信号, 所述指示信 号用于指示所述位置卡发送第二信号;
处理器 902 , 还用于生成所述第二信号;
发射器 903 ,还用于发送所述第二信号给除所述位置卡之外的至少一个位置 卡。
可选地, 接收器 901 , 还用于接收另一个位置卡发送的第二信号; 处理器 902 , 还用于根据所述第二信号, 生成第三信号;
发射器 903 , 还用于将所述第三信号发送给所述读取器。
其中, 所述第三信号携带有位置卡 900和所述另一个位置卡的标识信息,且 所述第三信号用于指示所述读取器根据所述第三信号的到达时间以及所述指示 信号的发送时间, 确定位置卡 900与所述另一个位置卡之间的相对距离。
其中 , 所述根据所述第三信号的到达时间以及所述指示信号的发送时间 , 确定位置卡 900与所述另一个位置卡之间的相对距离可以参见步骤 100d中的相 关描述。
进一步地, 处理器 902具体可以用于:
才艮据所述第二信号确定所述另一个位置卡的标识信息, 并才艮据所述另一个 位置卡和位置卡 900的标识信息和所述第二信号, 生成所述第三信号; 或者, 通过将位置卡 900的标识信息携带在所述第二信号中, 生成所述第三信号, 其中, 所述第二信号携带有所述另一个位置卡的标识信息。
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息。 其中, 所述第二信号可以为超声波或电磁波信号; 所述标识信息可以包括 射频标识或者小区标识。 需要指出的是, 上述位置卡 900可以用于执行图 1或图 3所示实施例中的方 法, 其中图 1或图 3所示实施例中各步骤的相关描述同样适用于本实施例, 不再 赘述。
本发明实施例提供的位置卡, 通过检测 UE发送的上行信号, 并根据所述上 行信号生成携带有位置卡标识的第一信号, 将所述第一信号发送给读取器, 以 使得读取器根据第一信号携带的位置卡标识信息以及该位置卡的位置,确定 UE 的位置, 不但能够大大简化了现有技术的定位用户设备的方法, 还能够更加准 确的识别 UE的位置。 如图 10所示, 本发明实施例提供的一种读取器 1000 , 读取器 1000应用于通 信系统中, 所述通信系统还包含位置卡和信号发射点, 读取器 1000包括: 接收 器 1001和处理器 1002。
接收器 1001 , 用于接收所述位置卡发送的第一信号, 其中, 所述第一信号 是由所述位置卡根据 UE发送的上行信号生成的,且所述第一信号携带有所述位 置卡的标识信息。
处理器 1002 , 用于根据接收器 1001接收的第一信号和所述位置卡的位置, 确定所述 UE的位置。
其中, 接收器 1001具体可以是脉冲检测器。
进一步地, 处理器 1002具体可以用于:
根据所述第一信号的信号强度, 确定所述位置卡与 UE之间的第一距离, 并 根据所述第一距离以及所述位置卡的位置, 确定所述 UE的位置; 或者,
若读取器 1000接收到除所述位置卡之外的至少一个位置卡发送的信号, 且 所述信号均为根据所述 UE发送的所述上行信号生成的,则根据所述位置卡的位 置以及所述至少一个位置卡的位置, 确定所述 UE的位置。
可选地, 处理器 1002具体可以用于: 获取所述位置卡的位置。
进一步地, 所述获取所述位置卡的位置可以包括: 发送指示信号, 所述指示信号用于指示另一个位置卡发送第二信号; 接收所述位置卡发送的第三信号, 所述第三信号携带有所述位置卡和所述 另一个位置卡的标识信息, 所述第三信号是由所述位置卡根据所述另一个位置 卡发送的所述第二信号生成的;
根据所述第三信号的到达时间和所述指示信号的发送时间, 确定所述位置 卡和所述另一个位置卡之间的相对距离;
根据所述另一个位置卡与除所述位置卡以及所述另一个位置卡之外的任一 位置卡之间的实际距离, 确定所述位置卡的位置。
其中, 所述根据所述第三信号的到达时间和所述指示信号的发送时间, 确 定所述位置卡和所述另一个位置卡之间的相对距离可以参见步骤 100d中的相关 描述。
可选地, 读取器 1000还包括:
发射器 1003 ,用于将处理器 1002确定的所述 UE的位置信息发送给网络侧设 备。
需要指出的是,读取器 1000可以用于执行图 2所示实施例中的方法,其中图 2所示实施例中各步骤的相关描述同样适用于本实施例。
本发明实施例提供的读取器, 通过接收位置卡发送的携带有位置卡标识的 第一信号, 并根据所述第一信号和所述位置卡的位置, 确定所述 UE的位置, 不 但能够大大简化了现有技术中定位用户设备的方法,还能够提升 UE定位的准确 性。 如图 11所示,本发明实施例提供的一种网络侧设备 1100,包括:接收器 1101、 处理器 1102和存储器 1103。
接收器 1101 , 用于接收 UE发送的上行信号。
处理器 1102, 用于根据接收器 1101接收的所述上行信号获取所述 UE的信道 信息。 其中, 所述信道信息可以包括 RSRP或者 CSI。
处理器 1102,还用于根据获取的所述 UE的信道信息以及存储器 1103存储的 预设的信道信息与位置信息的对应关系, 确定所述 UE的位置。
进一步地, 处理器 1102具体可以用于:
接收读取器发送的所述 UE的位置信息,所述位置信息是由所述读取器根据 位置卡发送的第一信号确定的,所述第一信号是由所述位置卡根据所述 UE发送 的所述上行信号生成的;
根据所述位置信息,所述 UE的信道信息以及预设的信道信息与位置信息的 关系, 确定所述 UE的位置。
需要指出的是, 网络侧设备 1100可以用于执行图 4所示实施例中的方法,其 中图 4所示实施例中各步骤的相关描述同样适用于本实施例。
本发明实施例提供的网络侧设备, 根据 UE的上行信号确定 UE的信道信息, 再根据所述 UE的信道信息以及预设的信道信息与位置信息的对应关系,确定所 述 UE的位置, 该方法进一步简化了现有技术中定位 UE的方法。
本发明实施例提供的一种通信系统, 可以包括图 9所示的位置卡 900, 以及 图 10所示的读取器 1000。
可选地, 通信系统还可以包括图 11所示的网络侧设备 1100。
本领域普通技术人员可以理解: 实现所述方法实施例的全部或部分步骤可 以通过程序指令相关的硬件来完成, 前述的程序可以存储于计算机可读取存储 介质中, 该程序在执行时, 执行包括所述方法实施例的步骤; 而前述的存储介 质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对其限 制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通技术人员 应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其 中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技术方案的 本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种定位用户设备的方法, 其特征在于, 所述方法应用于通信系统, 所 述通信系统包含位置卡、 信号发射点和读取器, 所述方法包括:
所述位置卡检测用户设备 UE发送的上行信号;
所述位置卡根据所述上行信号生成第一信号, 并将所述第一信号发送给所 述读取器;
其中, 所述第一信号携带有所述位置卡的标识信息, 且所述第一信号用于 指示所述读取器根据所述第一信号和所述位置卡的位置确定所述 UE的位置。
2、 根据权利要求 1所述的方法, 其特征在于, 所述位置卡根据所述上行信 号生成第一信号包括:
所述位置卡根据所述上行信号生成第一脉冲信号;
所述位置卡根据所述第一脉冲信号和所述位置卡的标识信息, 生成所述第 一信号。
3、根据权利要求 1或 2所述的方法,其特征在于,所述第一信号为脉冲信号, 且所述第一信号的脉冲幅度与所述上行信号的信号强度之间的关系是预设的比 例关系。
4、 根据权利要求 1-3中任一项所述的方法, 其特征在于, 所述方法还包括: 所述位置卡接收所述读取器发送的指示信号, 所述指示信号用于指示所述 位置卡发送第二信号;
所述位置卡发送所述第二信号给除所述位置卡之外的至少一个位置卡。
5、 根据权利要求 1-3中任一项所述的方法, 其特征在于, 所述方法还包括: 所述位置卡接收另一个位置卡发送的第二信号;
所述位置卡根据所述第二信号, 生成第三信号, 并将所述第三信号发送给 所述读取器;
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息, 且所述第三信号用于指示所述读取器根据所述第三信号的到达时间以及所述指 示信号的发送时间, 确定所述位置卡与所述另一个位置卡之间的相对距离。
6、 根据权利要求 5所述的方法, 其特征在于, 所述位置卡根据所述第二信 号, 生成第三信号包括:
才艮据所述第二信号确定所述另一个位置卡的标识信息, 并才艮据所述另一个 位置卡和所述位置卡的标识信息和所述第二信号, 生成所述第三信号; 或者, 通过将所述位置卡的标识信息携带在所述第二信号中,生成所述第三信号, 其中, 所述第二信号携带有所述另一个位置卡的标识信息;
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息。
7、 根据权利要求 4-6中任一项所述的方法, 其特征在于, 所述第二信号为 超声波或电磁波信号。
8、 根据权利要求 1-7中任一项所述的方法, 其特征在于, 所述标识信息包 括射频标识或者小区标识。
9、 一种定位用户设备的方法, 其特征在于, 所述方法应用于通信系统, 所 述通信系统包含位置卡、 信号发射点和读取器, 所述方法包括:
所述读取器接收所述位置卡发送的第一信号, 其中, 所述第一信号是由所 述位置卡根据用户设备 UE发送的上行信号生成的,且所述第一信号携带有所述 位置卡的标识信息;
所述读取器根据所述第一信号和所述位置卡的位置, 确定所述 UE的位置。
10、根据权利要求 9所述的方法, 其特征在于, 所述读取器根据所述第一信 号和所述位置卡的位置, 确定所述 UE的位置, 包括:
所述读取器根据所述第一信号的信号强度,确定所述位置卡与所述 UE之间 的第一距离,并根据所述第一距离以及所述位置卡的位置,确定所述 UE的位置; 或者,
所述读取器根据所述第一信号获取所述位置卡的位置, 并根据所述位置卡 的位置以及除所述位置卡之外的至少一个位置卡的位置确定所述 UE的位置,其 中, 所述至少一个位置卡为成功检测到所述 UE的所述上行信号, 并根据所述上 行信号发送信号给所述读取器的位置卡; 或者,
所述读取器根据所述第一信号获取所述位置卡的位置,并根据所述 UE的移 动轨迹和所述位置卡的位置确定所述 UE的位置。
11、 根据权利要求 9或 10所述的方法, 其特征在于, 所述方法还包括: 所述读取器根据成功检测到所述上行信号并根据所述上行信号发送信号给 所述读取器的位置卡的个数, 发送通知消息给网络侧设备, 所述通知消息用于 指示所述网络侧设备调整所述 UE的发射功率; 或者,
所述读取器将成功检测到所述上行信号的位置卡根据所述上行信号发送的 信号发送给网络侧设备, 以使得网络侧设备根据所述读取器发送的信号调整所 述 UE的发射功率。
12、 根据权利要求 9-11任一项所述的方法, 其特征在于, 在所述读取器接 收所述位置卡发送的第一信号之前, 所述方法还包括:
所述读取器获取所述位置卡的位置。
13、 根据权利要求 12所述的方法, 其特征在于, 所述读取器获取所述位置 卡的位置包括:
所述读取器发送指示信号, 所述指示信号用于指示另一个位置卡发送第二 信号;
所述读取器接收所述位置卡发送的第三信号, 所述第三信号携带有所述位 置卡和所述另一个位置卡的标识信息, 所述第三信号是由所述位置卡根据所述 另一个位置卡发送的所述第二信号生成的;
所述读取器根据所述第三信号的到达时间和所述指示信号的发送时间, 确 定所述位置卡和所述另一个位置卡之间的相对距离;
所述读取器根据所述另一个位置卡与除所述位置卡以及所述另一个位置卡 之外的任一位置卡之间的实际距离, 确定所述位置卡的位置。
14、 根据权利要求 9-13中任一项所述的方法, 其特征在于, 所述方法还包 括: 所述读取器将所述 UE的位置信息发送给网络侧设备。
15、 一种定位用户设备的方法, 其特征在于, 所述方法包括:
网络侧设备接收用户设备 UE发送的上行信号;
所述网络侧设备根据所述上行信号确定所述 UE的信道信息,所述信道信息 包括参考信号接收功率 RSRP或者信道状态信息 CSI;
所述网络侧设备根据所述 UE的信道信息以及预设的信道信息与位置信息 的对应关系, 确定所述 UE的位置。
16、 根据权利要求 15所述的方法, 其特征在于, 所述网络侧设备根据所述 UE的信道信息以及预设的信道信息与位置信息的关系, 确定所述 UE的位置包 括:
所述网络侧设备接收读取器发送的所述 UE的位置信息,所述位置信息是由 所述读取器根据位置卡发送的第一信号确定的, 所述第一信号是由所述位置卡 根据所述 UE发送的所述上行信号生成的;
所述网络侧设备根据所述位置信息,所述 UE的信道信息以及预设的信道信 息与位置信息的关系, 确定所述 UE的位置。
17、 一种定位用户设备的设备, 其特征在于, 所述设备是位置卡, 所述位 置卡应用于通信系统中, 所述通信系统还包含信号发射点和读取器, 所述位置 卡包括:
检波单元, 用于检测用户设备 UE发送的上行信号;
第一信号发生单元,用于根据所述检波单元检测的上行信号生成第一信号, 并将所述第一信号发送给所述读取器;
其中, 所述第一信号携带有所述位置卡的标识信息, 且所述第一信号用于 指示所述读取器根据所述第一信号和所述位置卡的位置确定所述 UE的位置。
18、 根据权利要求 17所述的位置卡, 其特征在于, 所述第一信号发生单元 包括脉冲发生单元和标签单元, 其中,
所述脉冲发生单元, 用于根据所述检波单元检测的上行信号生成第一脉冲 信号;
所述标签单元, 用于根据所述脉冲发生单元生成的所述第一脉冲信号和所 述位置卡的标识信息, 生成所述第一信号。
19、 根据权利要求 17或 18所述的位置卡, 其特征在于, 所述第一信号为脉 冲信号, 且所述第一信号的脉冲幅度与所述上行信号的信号强度之间的关系是 预设的比例关系。
20、 根据权利要求 17-19中任一项所述的位置卡, 其特征在于, 所述位置卡 还包括:
第一信号接收单元, 用于接收所述读取器发送的指示信号, 所述指示信号 用于指示所述位置卡发送第二信号;
第二信号发生单元, 用于生成所述第二信号, 并发送所述第二信号给除所 述位置卡之外的至少一个位置卡。
21、 根据权利要求 17-19中任一项所述的位置卡, 其特征在于, 还包括: 第二信号接收单元, 用于接收另一个位置卡发送的第二信号;
第三信号发生单元, 用于根据所述第二信号接收单元接收的第二信号, 生 成第三信号, 并将所述第三信号发送给所述读取器;
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息, 且所述第三信号用于指示所述读取器根据所述第三信号的到达时间以及所述指 示信号的发送时间, 确定所述位置卡与所述另一个位置卡之间的相对距离。
22、 根据权利要求 21所述的位置卡, 其特征在于, 所述第三信号发生单元 具体用于:
才艮据所述第二信号确定所述另一个位置卡的标识信息, 并才艮据所述另一个 位置卡和所述位置卡的标识信息和所述第二信号, 生成所述第三信号; 或者, 通过将所述位置卡的标识信息携带在所述第二信号中,生成所述第三信号, 其中, 所述第二信号携带有所述另一个位置卡的标识信息;
其中, 所述第三信号携带有所述位置卡和所述另一个位置卡的标识信息。
23、 根据权利要求 20-22中任一项所述的位置卡, 其特征在于, 所述第二信 号为超声波或电磁波信号。
24、 根据权利要求 17-23中任一项所述的位置卡, 其特征在于, 所述标识信 息包括射频标识或者小区标识。
25、 一种定位用户设备的设备, 其特征在于, 所述设备为读取器, 所述读 取器应用于通信系统中, 所述通信系统还包含位置卡和信号发射点, 所述读取 器包括:
信号接收单元, 用于接收所述位置卡发送的第一信号, 其中, 所述第一信 号是由所述位置卡根据用户设备 UE发送的上行信号生成的,且所述第一信号携 带有所述位置卡的标识信息;
UE定位单元,用于根据所述信号接收单元接收的所述第一信号和所述位置 卡的位置, 确定所述 UE的位置。
26、 根据权利要求 25所述的读取器, 其特征在于, 所述 UE定位单元具体用 于:
根据所述第一信号的信号强度, 确定所述位置卡与所述 UE之间的第一距 离, 并根据所述第一距离以及所述位置卡的位置, 确定所述 UE的位置; 或者, 根据所述第一信号获取所述位置卡的位置, 并根据所述位置卡的位置以及 除所述位置卡之外的至少一个位置卡的位置确定所述 UE的位置, 其中, 所述至 少一个位置卡为成功检测到所述 UE的所述上行信号,并根据所述上行信号发送 信号给所述读取器的位置卡; 或者,
根据所述第一信号获取所述位置卡的位置,并根据所述 UE的移动轨迹和所 述位置卡的位置确定所述 UE的位置。
27、 根据权利要求 25或 26所述的读取器, 其特征在于, 还包括:
第一发送单元, 用于根据成功检测到所述上行信号并根据所述上行信号发 送信号给所述读取器的位置卡的个数, 发送通知消息给网络侧设备, 所述通知 消息用于指示所述网络侧设备调整所述 UE的发射功率; 或者, 将成功检测到所 述上行信号的位置卡根据所述上行信号发送的信号发送给网络侧设备, 以使得 网络侧设备根据所述读取器发送的信号调整所述 UE的发射功率。
28、 根据权利要求 25-27中任一项所述的读取器, 其特征在于, 还包括: 位置卡定位单元, 用于获取所述位置卡的位置。
29、 根据权利要求 28所述的读取器, 其特征在于, 所述位置卡定位单元具 体用于:
发送指示信号, 所述指示信号用于指示另一个位置卡发送第二信号; 接收所述位置卡发送的第三信号, 所述第三信号携带有所述位置卡和所述 另一个位置卡的标识信息, 所述第三信号是由所述位置卡根据所述另一个位置 卡发送的所述第二信号生成的;
根据所述第三信号的到达时间和所述指示信号的发送时间, 确定所述位置 卡和所述另一个位置卡之间的相对距离;
根据所述另一个位置卡与除所述位置卡以及所述另一个位置卡之外的任一 位置卡之间的实际距离, 确定所述位置卡的位置。
30、 根据权利要求 25-29中任一项所述的读取器, 其特征在于, 所述读取器 还包括:
第二发送单元, 用于将所述 UE定位单元确定的所述 UE的位置信息发送给 网络侧设备。
31、 一种定位用户设备的设备, 其特征在于, 所述设备为网络侧设备, 所 述网络侧设备包括:
接收单元, 用于接收用户设备 UE发送的上行信号;
信道信息获取单元, 用于根据所述接收单元接收的所述上行信号确定所述 UE的信道信息, 所述信道信息包括参考信号接收功率 RSRP或者信道状态信息 CSI;
UE定位单元, 用于根据所述 UE的信道信息获取单元获取的所述信道信息 以及预设的信道信息与位置信息的对应关系, 确定所述 UE的位置。
32、 根据权利要求 31所述的网络侧设备, 其特征在于, 所述 UE定位单元具 体用于:
接收读取器发送的所述 UE的位置信息,所述位置信息是由所述读取器根据 位置卡发送的第一信号确定的,所述第一信号是由所述位置卡根据所述 UE发送 的所述上行信号生成的;
根据所述位置信息,所述 UE的信道信息以及预设的信道信息与位置信息的 关系, 确定所述 UE的位置。
33、 一种通信系统, 其特征在于, 包括: 用户设备 UE, 第一位置卡, 读取 器和信号发射点;
所述第一位置卡, 用于接收所述 UE发送的上行信号, 根据所述上行信号生 成第一信号, 并将所述第一信号发送给所述读取器, 所述第一信号携带有所述 第一位置卡的标识信息, 且所述第一信号用于指示所述读取器根据所述第一信 号和所述第一位置卡的位置确定所述 UE的位置;
所述读取器, 用于接收所述第一位置卡发送的所述第一信号, 并根据所述 第一信号和所述第一位置卡的位置, 确定所述 UE的位置。
34、 根据权利要求 32所述的通信系统, 其特征在于, 还包括网络侧设备, 所述网络侧设备具体用于:
接收所述 UE发送的上行信号, 根据所述上行信号确定所述 UE的信道信息, 并根据所述 UE的信道信息以及预设的信道信息与位置信息的对应关系,确定所 述 UE的位置, 所述信道信息包括参考信号接收功率 RSRP或者信道状态信息 CSI; 或者,
接收所述读取器发送的所述 UE的位置信息, 并根据所述位置信息, 所述信 道信息以及预设的信道信息与位置信息的关系, 确定所述 UE的位置。
35、 根据权利要求 33或 34所述的通信系统, 其特征在于, 还包括: 第二位 置卡;
所述读取器, 还用于发送指示信号, 所述指示信号用于指示位置卡发送信 号;
所述第一位置卡, 还用于接收所述读取器发送的指示信号, 并发送第二信 号给所述第二位置卡;
所述第二位置卡, 用于接收所述第一位置卡发送的所述第二信号, 并根据 所述第二信号生成第三信号, 并将所述第三信号发送给所述读取器;
所述读取器, 还用于接收所述第二位置卡发送的第三信号, 根据所述第三 信号的到达时间和所述指示信号的发送时间确定所述第一位置卡和所述第二位 置卡之间的相对距离, 根据所述第一位置卡与除所述第二位置卡之外的任一位 置卡之间的实际距离, 确定所述第一位置卡的位置。
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