WO2017113397A1 - 终端设备及定位系统 - Google Patents

终端设备及定位系统 Download PDF

Info

Publication number
WO2017113397A1
WO2017113397A1 PCT/CN2015/100320 CN2015100320W WO2017113397A1 WO 2017113397 A1 WO2017113397 A1 WO 2017113397A1 CN 2015100320 W CN2015100320 W CN 2015100320W WO 2017113397 A1 WO2017113397 A1 WO 2017113397A1
Authority
WO
WIPO (PCT)
Prior art keywords
reference signal
terminal device
reference signals
network device
antenna
Prior art date
Application number
PCT/CN2015/100320
Other languages
English (en)
French (fr)
Inventor
薛剑韬
李安俭
苏滨
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 EP15912021.1A priority Critical patent/EP3389320A4/en
Priority to CN201580085581.6A priority patent/CN108541393A/zh
Priority to PCT/CN2015/100320 priority patent/WO2017113397A1/zh
Priority to JP2018534606A priority patent/JP2019505781A/ja
Publication of WO2017113397A1 publication Critical patent/WO2017113397A1/zh
Priority to US16/022,495 priority patent/US10684351B2/en

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/10Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • 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
    • 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S2205/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/01Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations specially adapted for specific applications
    • G01S2205/02Indoor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009Transmission of position information to remote stations
    • G01S5/0018Transmission from mobile station to base station
    • G01S5/0036Transmission from mobile station to base station of measured values, i.e. measurement on mobile and position calculation on base station
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205Details
    • G01S5/0226Transmitters

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a terminal device and a positioning system.
  • location services play an important role as an indispensable part of mobile communication and personal communication services.
  • Various location-based services based on mobile terminal location such as intelligent transportation, vehicle navigation, travel guides, emergency alarms, network planning and network optimization, etc., require accurate and efficient positioning methods.
  • GPS Global Positioning System
  • Some indoor positioning technologies such as indoor positioning technology based on wireless LAN, Bluetooth, etc., can achieve indoor positioning, but need to install a large number of third-party equipment, not only expensive to install and maintain, but also affected by the environment, resulting in system performance is not stable.
  • indoor positioning using mobile communication networks has become a popular positioning method.
  • the OTDOA Observed Time Difference Of Arrival
  • the terminal device receives different PRSs sent by multiple base stations (Positioning). After the reference signal, the reference signal is calculated, the time difference between any two PRSs is calculated, and multiple time differences are obtained, and multiple time differences and base station identifiers corresponding to each time difference are sent to the positioning server. . For each time difference value and the corresponding base station identifier, the positioning server calculates a hyperbolic positioning area according to the time difference value and the base station position corresponding to the base station identifier, and finally obtains a plurality of hyperbolic positioning areas. Thereafter, the location information of the terminal device is obtained by calculating intersections of the plurality of hyperbolic positioning regions.
  • the node participating in the positioning is a macro base station.
  • the quality of the signal received by the terminal device is poor.
  • the signal is not received, resulting in inaccurate positioning, so the positioning accuracy is poor.
  • an embodiment of the present invention provides a terminal device and a positioning system.
  • a terminal device comprising a receiver, a transmitter, a processor and a memory, the receiver, the transmitter and the memory being respectively connected to the processor,
  • the processor is configured to:
  • the auxiliary data configured by the network device, attribute information of the at least two antenna units and attribute information of the reference signal corresponding to each of the at least two antenna units; receiving, according to the attribute information, at least two reference signals, where And the at least two reference signals are respectively sent by the corresponding ones of the at least two antenna units; acquiring the positioning information by measuring the at least two reference signals; and the positioning information and the positioning information corresponding to the positioning information
  • the identification information of the antenna unit is sent to the network device. Since the terminal device can recognize which antenna unit the received reference signal comes from, the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • the location information includes a signal arrival time difference
  • the processor is configured to: acquire each of the at least two reference signals The signal of the transmitted reference signal arrives at a time difference. Since the terminal device can distinguish the antenna unit that transmits each reference signal, the positioning method of observing the signal arrival time difference can be applied to the distributed positioning system to achieve indoor positioning.
  • the processor is configured to: receive the auxiliary data that is sent by a network device.
  • the indoor signal can be realized by distinguishing the reference signal transmitted by the antenna unit according to the auxiliary data reception.
  • a positioning information transmitting apparatus comprising:
  • an obtaining module configured to acquire, according to the auxiliary data configured by the network device, attribute information of the at least two antenna units and attribute information of the reference signal corresponding to each of the at least two antenna units; and a receiving module, configured to use, according to the attribute Receiving at least two reference signals, wherein the at least two reference signals are respectively sent by respective ones of the at least two antenna units; and the measuring module is configured to obtain positioning information by measuring the at least two reference signals And a sending module, configured to send the positioning information and the identifier information of the antenna unit corresponding to the positioning information to the network device. Since the terminal device can recognize which antenna unit the received reference signal comes from, the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • the positioning information includes a signal arrival time difference
  • the measuring module is configured to acquire each of the at least two reference signals The signal arrival time difference of the transmitted reference signal. Since the terminal device can distinguish the antenna unit that transmits each reference signal, the positioning method of observing the signal arrival time difference can be applied to the distributed positioning system to achieve indoor positioning.
  • the receiving module is further configured to receive the auxiliary data that is sent by the network device.
  • the indoor signal can be realized by distinguishing the reference signal transmitted by the antenna unit according to the auxiliary data reception.
  • a network device comprising a receiver, a transmitter, a processor and a memory, and the receiver, the transmitter and the memory are respectively associated with the processor Connecting, the processor is configured to: generate a specified number of reference signals, each attribute information of the reference signal is different; the network device further includes a frequency conversion module and a local oscillator module, wherein the local oscillator module is connected to the frequency conversion module The frequency conversion module is connected to the transmitter; the frequency conversion module is configured to separately convert the generated specified number of reference signals to different carrier frequencies according to different local oscillator frequencies generated by the local oscillator module, and pass the transmitter Send to a specified number of antenna units. Since the network device allocates reference signals with different attribute information to different antenna units in a frequency domain separation manner, so that the terminal device can identify which antenna unit the received reference signal is from, the improved distributed antenna system can implement the terminal. Positioning of the device and improved indoor positioning accuracy.
  • a fourth aspect provides a network device, comprising: a receiver, a transmitter, a processor, and a memory, wherein the receiver, the transmitter, and the memory are respectively associated with the processor Connecting, the processor is configured to: acquire a specified number of scrambling codes, and generate a specified number of reference signals, each reference signal is scrambled by a different scrambling code, and attribute information of each reference signal is different; the network The device further includes a scrambling module and a scrambling code generating module, the scrambling module is connected to the scrambling code generating module, and the scrambling module is connected to the transmitter; the scrambling code generating module is configured to generate a specified number of scrambling codes The scrambling module is configured to generate a specified number of reference signals, each of which is scrambled by a different scrambling code; the specified number of reference signals are transmitted by the transmitter to a specified number of antenna elements. Since the network device allocates different reference signals to different antenna units by means of code domain separation, so that the terminal
  • a positioning system includes: a network device, and multiple antenna units, where the network device is configured to generate multiple reference signals, and separately convert the multiple reference signals to Transmitted to the plurality of antenna units on different carrier frequencies, the attribute information of each reference signal is different; each of the plurality of antenna units is configured to receive, after receiving multiple reference signals sent by the network device, The reference signal carried on the carrier frequency corresponding to itself is subjected to mixing processing to obtain a designated reference signal, and the specified reference signal is transmitted to the terminal device. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received reference signal is from, so the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • each of the antenna units is further configured to perform the pole with the specified polarization type on the specified reference signal after the specified reference signal is obtained. Processing; transmitting the polarized designated reference signal to the terminal device. Since the different antenna units can polarize the reference signals with different polarization types, the terminal device can identify the antenna unit that transmits the reference signal according to the polarization type of the reference signal, thereby improving the positioning accuracy.
  • a positioning system includes: a network device, and multiple antenna units; the network device is configured to acquire a specified number of scrambling codes, and generate multiple reference signals, each The reference signal is scrambled by different scrambling codes, and the attribute information of each reference signal is different; the plurality of reference signals are transmitted to the plurality of antenna units; each of the plurality of antenna units is used for After receiving the plurality of reference signals, the reference signal corresponding to the self-scrambling code is descrambled to obtain a designated reference signal, and the designated reference signal is sent to the terminal device. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received positioning signal comes from. Therefore, the improved distributed antenna system can achieve positioning of the terminal device and improve indoor positioning accuracy.
  • each of the antenna units is further configured to perform a pole on the specified reference signal with a specified polarization type after the specified reference signal is obtained. And processing, the polarized reference signal is sent to the terminal device. Since the different antenna units can polarize the reference signals with different polarization types, the terminal device can identify the antenna unit that transmits the reference signal according to the polarization type of the reference signal, thereby improving the positioning accuracy.
  • a positioning system includes: a network device, and multiple antenna units; the network device is configured to generate a reference signal, and send the reference signal to the multiple An antenna unit; each of the plurality of antenna units is configured to perform polarization processing on the reference signal with a specified polarization type after receiving the reference signal to obtain multiple references with different polarization types And transmitting the plurality of reference signals to the terminal device. Since different antenna units can polarize the reference signal by different polarization types, the terminal device can identify which antenna unit the received reference signal comes from according to the polarization type, so the improved distributed antenna system can implement the terminal device. Positioning and improved indoor positioning accuracy.
  • the eighth aspect provides a method for sending location information, where the method includes:
  • the auxiliary data configured by the network device, attribute information of the at least two antenna units and attribute information of the reference signal corresponding to each of the at least two antenna units; receiving, according to the attribute information, at least two reference signals, where And the at least two reference signals are respectively sent by the corresponding ones of the at least two antenna units; acquiring the positioning information by measuring the at least two reference signals; and the positioning information and the positioning information corresponding to the positioning information
  • the identification information of the antenna unit is sent to the network device. Since the terminal device can recognize which antenna unit the received reference signal comes from, the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • the location information includes a signal arrival time difference
  • the method further includes:
  • the terminal device can distinguish the antenna unit that transmits each reference signal, the positioning method of observing the signal arrival time difference can be applied to the distributed positioning system to achieve indoor positioning.
  • the auxiliary data that is sent by the network device is received. Since the reference signal transmitted by the antenna unit can be distinguished according to the auxiliary data reception, indoor positioning can be realized.
  • a method for transmitting a reference signal comprising:
  • a specified number of reference signals are generated, and the attribute information of each reference signal is different; according to different local oscillator frequencies, the generated specified number of reference signals are respectively frequency-converted to different carrier frequencies and sent to a specified number of antenna units.
  • the network device adopts frequency domain separation, the reference information of different attribute information is used. The number is assigned to different antenna units, so that the terminal device can identify which antenna unit the received reference signal comes from, so the improved distributed antenna system can realize the positioning of the terminal device and improve the indoor positioning accuracy.
  • the spectrums of the different carrier frequencies do not interfere with each other, so that reference signals carried on different carrier frequencies are isolated from each other and do not interfere with each other. .
  • a method for transmitting a reference signal comprising:
  • the terminal device After receiving the multiple reference signals sent by the network device, performing a mixing process on the reference signal carried on the carrier frequency corresponding to itself, obtaining a designated reference signal, and transmitting the specified reference signal to the terminal device. Since the antenna unit can obtain the reference signal of the carrier frequency corresponding to itself, the terminal device can identify which antenna unit the received reference signal comes from, so the improved distributed antenna system can realize the positioning of the terminal device and improve the indoor positioning. Precision.
  • the method further includes:
  • Polarizing the specified reference signal with a specified polarization type transmitting the polarized designated reference signal to the terminal device. Since the different antenna units can polarize the reference signals with different polarization types, the terminal device can identify the antenna unit that transmits the reference signal according to the polarization type of the reference signal, thereby improving the positioning accuracy.
  • a method for transmitting a reference information comprising:
  • the different scrambling codes are mutually orthogonal, such that reference signals obtained by scrambling different scrambling codes do not interfere with each other.
  • a method for transmitting a reference signal comprising:
  • the reference signal corresponding to the self-scrambling code is descrambled to obtain a designated reference signal, and the designated reference signal is sent to the terminal device. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received positioning signal comes from. Therefore, the improved distributed antenna system can achieve positioning of the terminal device and improve indoor positioning accuracy.
  • the method further includes:
  • Polarizing the specified reference signal with a specified polarization type transmitting the polarized designated reference signal to the terminal device. Since the different antenna units can polarize the reference signals with different polarization types, the terminal device can identify the antenna unit that transmits the reference signal according to the polarization type of the reference signal, thereby improving the positioning accuracy.
  • a thirteenth aspect provides a method for transmitting positioning information, where the method includes:
  • the auxiliary data configured by the network device, an identifier of the at least two antenna units and a polarization type of the reference signal corresponding to each of the at least two antenna units; receiving at least two reference signals according to the polarization type
  • the at least two reference signals are respectively sent by respective ones of the at least two antenna units; obtaining positioning information by measuring the at least two reference signals; and the positioning information and the positioning information
  • the identification information of the corresponding antenna unit is sent to the network device. Since the terminal device can recognize which antenna unit the received reference signal comes from, the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • a fourteenth aspect a method for transmitting a reference signal is provided, the method comprising:
  • the terminal device After receiving the reference signal, performing polarization processing on the reference signal with a specified polarization type; and transmitting the polarized reference signal to the terminal device. Since the different antenna units can polarize the reference signals with different polarization types, the terminal device can identify the antenna unit that transmits the reference signal according to the polarization type of the reference signal, thereby improving the positioning accuracy.
  • an antenna unit includes a splitter, a mixing module, and an antenna; the mixing module is configured to generate a specified local oscillator frequency, and receive the specified number through the splitter After the target reference signal, the reference signal carried on the carrier frequency corresponding to the carrier is subjected to mixing processing according to the specified local oscillator frequency to obtain a designated reference signal, and the designated reference signal is sent to the terminal device through the antenna. Since the antenna unit can obtain the reference signal of the carrier frequency corresponding to itself, the terminal device can identify which antenna unit the received reference signal comes from, so the improved distributed antenna system can realize the positioning of the terminal device and improve the indoor positioning. Precision.
  • an antenna unit including a splitter, a descrambling module, and an antenna; the descrambling module is configured to generate a designated scrambling code and receive a designation transmitted via the splitter After the number of reference signals, the reference signal corresponding to the self-scrambling code is descrambled according to the specified scrambling code to obtain a designated reference signal, and the designated reference signal is sent to the terminal device by the antenna. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received reference signal is from, so the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • an antenna unit configured to perform polarization processing on the reference signal by using a specified polarization type after receiving the reference signal, Obtaining a designated reference signal; transmitting the specified reference signal to the terminal device through the antenna. Since different antenna units can polarize the reference signal by different polarization types, the terminal device can identify which antenna unit the received reference signal comes from according to the polarization type, so the improved distributed antenna system can implement the terminal device. Positioning and improved indoor positioning accuracy.
  • Figure 1 is a structural diagram of a distributed antenna system
  • FIG. 2 is a structural diagram of a positioning system according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a positioning method according to an embodiment of the present invention.
  • FIG. 4 is a structural diagram of a positioning system according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a positioning method according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a positioning system according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a positioning method according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 9 is a block diagram of a positioning information sending apparatus according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the existing distributed antenna system can improve the communication quality in the room, as shown in FIG.
  • the system structure diagram includes a network device and a plurality of antenna units, wherein the plurality of antenna units are located indoors and connected to the network device.
  • a network device such as the base station shown in FIG. 1
  • each antenna unit sends the received reference signal to each antenna unit.
  • Terminal Equipment such as the base station shown in FIG. 1.
  • each reference signal is the same, after the terminal device receives the reference signal indoors, the antenna unit that transmits the reference signal cannot be distinguished, so that the indoor positioning cannot be achieved by using the existing distributed antenna system, and the present invention provides
  • the embodiment improves the existing distributed antenna system, so that the improved distributed antenna system can realize indoor positioning and improve the indoor positioning accuracy of the mobile network.
  • the specific improvement manner and the positioning process are detailed in the following embodiments. .
  • the positioning system is a distributed antenna system, in order to enable a terminal device to identify a reference signal transmitted by different antenna units in a distributed antenna system, and consider moving.
  • different signals can be separated into different frequency domains for transmission, so that the receiving end can distinguish the received signals according to different frequency domains, and the embodiment of the present invention uses the frequency domain separation method to the existing distribution.
  • the antenna system has been improved.
  • the distributed antenna system includes a network device and a specified number of antenna elements.
  • the frequency converter module and the local oscillator module are added to the port where the network device sends a signal to the antenna unit, and the local oscillator module is used to generate different local oscillator frequencies.
  • the network device is configured to generate a specified number of reference signals with different attribute information, and frequency-convert the specified number of reference signals to different carrier frequencies according to different local oscillator frequencies, that is, different reference signals.
  • the numbers are separated in the frequency domain; a specified number of reference signals different in the frequency domain are then transmitted to a specified number of antenna elements.
  • Each antenna unit includes a splitter, a mixing module, an antenna, etc., or a device having the same function.
  • the mixing module can generate a specified local oscillator frequency for performing mixing processing on the reference signal corresponding to the carrier frequency of the antenna unit itself, and transmitting the obtained designated reference signal to the terminal device.
  • different antenna units respectively transmit different reference signals to the terminal device, and at the same time, the correspondence between the identifier of each antenna unit and the attribute information of each reference signal is stored in the network device.
  • connection between the network device and the specified number of antenna units may be a physical connection, such as a coaxial cable or an optical cable connection, or a wireless connection, which is not specifically limited in this embodiment of the present invention.
  • the distributed antenna system shown in FIG. 2 further includes a coupler, and the splitter of the coupler and the antenna unit is configured to distribute the transmit power of the signal to each antenna unit as evenly as possible, so that the transmit power of each antenna unit is substantially the same. .
  • FIG. 3 is a flowchart of a positioning method provided by the positioning system shown in FIG. 2 according to an embodiment of the present invention.
  • the interaction subject is a network device, a specified number of antenna units, and a terminal device.
  • the method process provided by the embodiment of the present invention includes:
  • the network device After generating a specified number of reference signals, the network device separately converts the specified number of reference signals to different carrier frequencies and sends the signals to a specified number of antenna units.
  • the network device is coupled to a specified number of antenna elements to form a distributed antenna system.
  • the network device refers to a physical or logical entity for generating a reference signal, processing a reference signal, and having a function for locating a terminal device in a distributed antenna system.
  • the specific embodiment of the network device is not limited in this embodiment of the present invention.
  • the network device generates a specified number of reference signals, and the attribute information of each reference signal is different, wherein the attribute information includes a pseudo random sequence for generating the reference signal, a resource mapping manner, and the like, so that the terminal device can restore the corresponding reference signal according to the attribute information.
  • the specified number of reference signals are respectively frequency-converted to different carrier frequencies and sent to a specified number of antenna units, and the specific implementation process is as follows:
  • the network device first generates a reference signal having a specified number, wherein each reference signal has the same initial carrier frequency and is a fixed carrier frequency; a specified number of reference signals having a fixed carrier frequency are transmitted to the frequency conversion module, and the frequency conversion module is based on the local oscillator
  • the different local oscillator frequencies generated by the module respectively convert the generated specified number of reference signals to different carrier frequencies to obtain a specified number of reference signals carried on different carrier frequencies, and specify the bands on different carrier frequencies.
  • the number of reference signals is sent to a specified number of antenna elements.
  • the network device first generates three reference signals S1, S2, and S3, where S1, S2, and S3 have different identification information, and the initial carrier frequencies are the same, both are fixed carrier frequencies F1; the local oscillator module generates two copies.
  • the vibration frequency F4 and F5 can use the frequency conversion module to convert different reference signals to different carrier frequencies.
  • the frequency conversion module mixes the initial carrier frequency F1 of S2 with the local frequency F4, so that the reference signal S2 is frequency-converted to the carrier frequency F2.
  • the frequency conversion module mixes the initial carrier frequency F1 of the S3 with the local oscillator frequency F5, so that the reference signal S3 is frequency-converted to the carrier frequency F3.
  • the carrier frequency of the reference signal S1 is F1
  • the carrier frequency of the reference signal S2 is F2
  • the carrier frequency of the reference signal S3 is F3, so that different reference signals are respectively frequency-converted to different carrier frequencies.
  • the number of reference signals generated by the network device is not specifically limited in the embodiment of the present invention.
  • the number of local oscillator frequencies generated by the local oscillator module may be the same as the specified number of the reference signals generated by the network device, or may be reduced by one for the specified number, which is not specifically limited in the embodiment of the present invention.
  • the carrier frequency of one of the specified number of reference signals is not subjected to frequency conversion processing, that is, it is always a fixed carrier frequency; when the number of local oscillator frequencies is a specified number, The carrier frequency of each of the number of reference signals is subjected to frequency conversion processing.
  • the mixing module is further configured to restore the carrier frequency of the reference signal to a fixed load. frequency.
  • the reference signal carried on the carrier frequency corresponding to itself is mixed to obtain a designated reference signal, and the detailed process is as follows:
  • the mixing module of each antenna unit After receiving the specified number of reference signals through the splitter, the mixing module of each antenna unit performs mixing processing on the reference signal carried on the carrier frequency corresponding to itself according to the specified local oscillator frequency to obtain a designated reference signal. Wherein, the carrier frequency corresponding to itself is mixed with the local oscillator frequency to obtain a carrier frequency of a fixed carrier frequency.
  • the mixing module in the antenna unit A2 generates the local frequency F4, and the mixing module in the antenna unit A3 generates the local frequency F5, in combination with the example in step 301.
  • the antenna unit A2 receives the reference signal S2 with the carrier frequency F2
  • the carrier frequency is F2 is mixed with the local oscillator frequency F4 to obtain a reference signal S2 whose carrier frequency is a fixed carrier frequency F1;
  • the antenna unit A3 receives the reference signal S3 with the carrier frequency F3, the carrier frequency F3 is mixed with the local frequency F5.
  • the frequency is obtained, and the reference signal S3 with the carrier frequency F1 is obtained.
  • each antenna unit acquires a specified reference signal having different identification information, and respectively transmits the designated reference signal to the terminal device, that is, the antenna unit A1 transmits the reference signal S1 to the terminal device, and the antenna unit A2 transmits the reference signal to the terminal device.
  • the antenna unit A3 transmits a reference signal S3 to the terminal device.
  • the local oscillator frequency generated by the mixing module in each antenna unit and the local oscillator frequency that the network equipment performs frequency conversion processing on each reference signal should be in one-to-one correspondence, so that each antenna unit can obtain different respectively.
  • the specified reference signal should be noted that the local oscillator frequency generated by the mixing module in each antenna unit and the local oscillator frequency that the network equipment performs frequency conversion processing on each reference signal.
  • each antenna unit may further include a polarization module for performing polarization processing on the specified reference signal and transmitting the polarized designated reference signal to the terminal device.
  • the polarization type indicated by the polarization module in the different antenna units is different, and the polarization type may be horizontal polarization, vertical polarization, circular polarization, elliptically polarized or polarization of a specified angle, etc., in the embodiment of the present invention. This is not specifically limited.
  • the terminal device acquires, according to the auxiliary data configured by the network device, the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units, and receives the at least two reference signals according to the attribute information. .
  • the process of locating the terminal device may be initiated by the terminal device side, or may be initiated by the network device side, which is not specifically limited in this embodiment of the present invention.
  • the following describes the location of the terminal device as an example.
  • the network device After receiving the positioning request sent by the terminal device, the network device sends the positioning capability request signaling to the terminal device. After receiving the signaling, the terminal device returns the corresponding positioning capability information. Includes available hardware resources, location resolution capabilities, signal quality, and more.
  • the terminal device sends an auxiliary data request to the network device, and after receiving the auxiliary data request, the network device returns the configured auxiliary data, where the auxiliary data includes an identifier of at least two antenna units and each antenna of the at least two antenna units.
  • the auxiliary data may further include a polarization type of a reference signal corresponding to each of the at least two antenna units.
  • the terminal device After receiving the auxiliary data, acquires the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units, according to the auxiliary data configured by the network device, and receives the attribute information according to the attribute information.
  • At least two Test signal The at least two reference signals are respectively sent by corresponding ones of the at least two antenna units, and the process for the terminal device to receive the at least two reference signals according to the attribute information is as follows:
  • the terminal device restores at least two reference signals according to the attribute information of each reference signal. Then, the terminal device receives the same reference signal as each of the restored reference signals among the plurality of reference signals sent by the plurality of antenna units, and acquires identification information of the corresponding antenna unit.
  • the identifier information of the antenna unit may be the name of the antenna unit, the device number, the ID (Identifer) number, the physical address, the IP (Internet Protocol) address, etc., which are not specifically limited in this embodiment of the present invention. .
  • the terminal device acquires the identifiers of the at least two antenna units according to the auxiliary data configured by the network device, and the identifier of the antenna unit refers to any one of the identifier information of the antenna unit.
  • the identification of the antenna unit and the identification information of the antenna unit are for illustrative purposes.
  • the same antenna unit may have different unique identifiers.
  • the terminal device and the network device may communicate by using different identifiers of the same antenna unit.
  • the auxiliary data sent by the network device to the terminal device may further include a reference signal receiving time window, so that after receiving the reference signal time window, the terminal device only receives the reference signal in the time window according to the attribute information.
  • the reference signal can reduce the power consumption of the terminal device.
  • the auxiliary data may further include an identifier of the at least two antenna units and a polarization type of the reference signal corresponding to each of the at least two antenna units.
  • the terminal device receives at least two reference signals according to the type of polarization.
  • the terminal device obtains the positioning information by measuring the at least two reference signals, and sends the positioning information and the identifier information of the antenna unit corresponding to the positioning information to the network device.
  • the auxiliary data sent by the network device may further include a positioning method to be used, and the positioning method may be a method for measuring a time difference of arrival, an angle detection and a positioning method, and a field strength detection and positioning method. This is not specifically limited.
  • the method for measuring the arrival time difference is taken as an example to explain the process of the terminal device obtaining the positioning information by measuring the at least two reference signals: the terminal device acquires at least two reference signals and the identifier of the corresponding antenna unit of each reference signal. After the information, acquiring a signal arrival time difference of the reference information number sent by each of the at least two reference signals, recording identification information of the two antenna units corresponding to the signal arrival time difference, and generating positioning information, the positioning information This includes the signal arrival time difference. Then, the positioning information and the identification information of the antenna unit corresponding to the positioning information are sent to the network device.
  • the identifier information of the antenna unit corresponding to the positioning information refers to identifier information of two antenna units corresponding to each signal arrival time difference in the positioning information.
  • the auxiliary data sent by the network device to the terminal device may further include a reference reference signal, and the terminal device records the first arrival time of receiving the same reference signal as the identification information of the reference reference signal, and according to the attribute information. After receiving any reference signal, calculating a second arrival time of the any reference signal, determining a time difference between the second arrival time and the first arrival time as a signal arrival time difference of the any reference signal.
  • the network device locates the terminal device according to the received positioning information and the identifier information of the antenna unit corresponding to the positioning information.
  • the network device performs the capability of locating the terminal device according to the received positioning information and the identification information of the antenna unit corresponding to the positioning information.
  • the network device stores the correspondence between the identification information of each antenna unit connected thereto and the physical position of each antenna unit.
  • the network device After receiving the location information sent by the terminal device and the identifier information of the antenna unit corresponding to the location information, the network device acquires the physical location of the antenna unit corresponding to the identifier information of the antenna unit according to the identifier information of the antenna unit. Thereafter, the location of the terminal device is obtained according to the time difference between each signal arrival and the physical position of the corresponding antenna unit.
  • the terminal device when the terminal equipment is located by using the measurement time difference difference positioning method, the terminal device sends at least two signal arrival time differences and identification information of the antenna unit corresponding to each signal arrival time difference to the network device, so that the network device can Obtaining at least two hyperbolic positioning regions according to the arrival time of each signal and the physical position of the corresponding antenna unit, and determining the position of the terminal device by calculating the intersection position of the at least two hyperbolic positioning regions, thereby completing the terminal The location of the device.
  • the network device after generating a specified number of reference signals, the network device respectively converts the specified number of reference signals to different carrier frequencies and transmits to a specified number of antenna units; each antenna unit of the specified number of antenna units After receiving the specified number of reference signals, performing mixing processing on the reference signal carried on the carrier frequency corresponding to itself, obtaining a designated reference signal, and transmitting the designated reference signal to the terminal device; and assisting the terminal device according to the configuration of the network device And acquiring, by the data, the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units; receiving the at least two reference signals according to the attribute information; and acquiring the positioning information by measuring the at least two reference signals; The positioning information and the identification information of the antenna unit corresponding to the positioning information are transmitted to the network device. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received reference signal is from, so the improved distributed antenna system can realize positioning of the terminal device and improve indoor
  • FIG. 4 is a structural diagram of a positioning system according to an embodiment of the present invention, which is a distributed antenna system, in order to enable a terminal device to identify a reference signal transmitted by different antenna units in a distributed antenna system, and considers moving In the communication system, different signals can be separated into different code domains for transmission, so that the receiving end can distinguish the received signals according to different codewords.
  • the existing distribution is performed by using the code domain separation method.
  • An antenna system has been improved.
  • the distributed antenna system includes a network device and a specified number of antenna elements coupled to the network device.
  • a scrambling module and a scrambling code generating module are added, wherein the scrambling code generating module is configured to generate different scrambling codes.
  • the network device is configured to generate a specified number of reference signals according to different scrambling codes, each reference signal being scrambled by a different scrambling code, that is, separating different reference signals into different code domains; and then specifying a number of different code domains
  • the reference signal is sent to a specified number of antenna elements.
  • Each antenna unit includes a splitter, a descrambling module, an antenna, etc., or a device having the same function.
  • the descrambling module may generate a specified scrambling code for performing descrambling processing on the reference signal corresponding to the antenna unit self-scrambling code, and transmitting the obtained designated reference signal to the terminal device through the antenna.
  • different antenna units respectively transmit different reference signals to the terminal device, and at the same time, the correspondence between the identifier of each antenna unit and the attribute information of each reference signal is stored in the network device.
  • connection between the network device and the specified number of antenna units may be a physical connection, such as a coaxial cable or an optical cable connection, or a wireless connection, which is not specifically limited in this embodiment of the present invention.
  • the distributed antenna system shown in FIG. 4 further includes a coupler for coupling the transmit power of the signal to each antenna unit as evenly as possible so that the transmit power of each antenna unit is substantially the same.
  • FIG. 5 is a flowchart of a positioning method provided by the positioning system shown in FIG. 4 according to an embodiment of the present invention.
  • the interaction subject is a network device, a specified number of antenna units, and a terminal device.
  • the method process provided by the embodiment of the present invention includes:
  • the network device After acquiring the specified number of scrambling codes, the network device generates a specified number of reference signals, and sends the specified number of reference signals to the specified number of antenna units.
  • the network device is coupled to a specified number of antenna elements to form a distributed antenna system.
  • the network device refers to a physical or logical entity for generating a reference signal, processing a reference signal, and having a function for locating a terminal device in a distributed antenna system.
  • the specific embodiment of the network device is not limited in this embodiment of the present invention. After the network device obtains the specified number of scrambling codes, it is born.
  • each reference signal is scrambled by a different scrambling code, and the attribute information of each reference signal is different, wherein the attribute information includes a pseudo-random sequence for generating the reference signal, a resource mapping manner, etc., so that the terminal device
  • the corresponding reference signal can be restored according to the attribute information; the specified number of reference signals are sent to the specified number of antenna units, and the specific implementation process is as follows:
  • the network device first generates a specified number of initial reference signals having different signal identifications, the specified number of initial reference signals having different identification information.
  • Each initial reference signal is included in a fixed codeword; after a specified number of initial reference signals having a fixed codeword are transmitted to the scrambling module, the scrambling module assigns a specified number of different scrambling codes according to the scrambling code generating module
  • the initial reference signals are respectively scrambled into different codewords to obtain a specified number of reference signals, and the specified number of reference signals are transmitted to a specified number of antenna elements.
  • the network device first generates three initial reference signals S1, S2, and S3, where S1, S2, and S3 have different identification information, and are all included in the fixed codeword C1; the scrambling code generation module generates two scrambling codes. C4 and C5, the scrambling code module can scramble different initial reference signals into different code words. For example, the scrambling module scrambles the fixed codeword C1 and the scrambling code C4 including S2 to obtain a codeword C2 including S2. The scrambling module scrambles the fixed codeword C1 containing S3 and the scrambling code C5 to obtain a codeword C3 containing S3.
  • the carrier frequency of the reference signal S1 is C1
  • the carrier frequency of the reference signal S2 is C2
  • the carrier frequency of the reference signal S3 is C3, so that different reference signals are respectively frequency-converted to different carrier frequencies.
  • the number of initial reference signals generated by the network device is not specifically limited in the embodiment of the present invention.
  • the number of the scrambling codes generated by the scrambling code generating module may be the same as the specified number of the initial reference signals generated by the network device, or may be reduced by one for the specified number, which is not specifically limited in this embodiment of the present invention.
  • the number of scrambling codes is a specified number minus 1
  • an initial reference signal of the specified number of initial reference signals is not scrambled by the scrambling module; when the number of scrambling codes is a specified number, a specified number of initial reference signals are used.
  • Each of the initial reference signals is scrambled by the scrambling module.
  • the network device directly acquires a specified number of scrambling codes, and respectively generates a specified number of reference signals different in codeword according to the specified number of scrambling codes, and then sends the specified number of reference signals to the specified number of antenna units.
  • each antenna unit of the specified number of antenna units After receiving the specified number of reference signals, perform descrambling processing on the reference signal corresponding to the self-scrambling code to obtain a designated reference signal, and obtain the designated reference signal. Send to the terminal device.
  • the reference signal corresponding to the self-scrambling code is descrambled to obtain a specified reference signal, which is detailed.
  • the process is as follows:
  • the descrambling module of each antenna unit After receiving the specified number of reference signals by the splitter, the descrambling module of each antenna unit performs descrambling processing on the reference signal corresponding to the self-scrambling code according to the specified scrambling code, to obtain a designation that the codeword is a fixed codeword.
  • the reference signal corresponding to the self-scrambling code refers to a reference signal obtained by the network device after scrambling any initial reference signal by using the same scrambling code as the specified scrambling code.
  • a descrambling module in the antenna unit A2 generates a scrambling code C4, and a descrambling module in the antenna unit A3 generates a scrambling code C5, in combination with the example in step 501, when the antenna unit A2 After receiving the reference signal S2 with the codeword C2, the codeword C2 will be descrambled by using the scrambling code C4 to obtain the reference signal S2 whose codeword is the fixed codeword C1; when the antenna unit A3 receives the reference of the codeword C3 After the signal S3, the codeword C3 is descrambled by using the scrambling code C5 to obtain the reference signal S3 whose codeword is the fixed codeword C1; when the antenna unit A1 receives the specified number of reference signals, the descrambling module included therein directly The reference signal S1 whose codeword is the fixed codeword C1 is obtained.
  • each antenna unit acquires a specified reference signal having different identification information, and respectively transmits the designated reference signal to the terminal device, that is, the antenna unit A1 transmits the reference signal S1 to the terminal device, and the antenna unit A2 transmits the reference signal to the terminal device. S2, the antenna unit A3 transmits a reference signal S3 to the terminal device.
  • the scrambling code generated by the descrambling module in each antenna unit and the scrambling code for scrambling each initial reference signal by the network device should be in one-to-one correspondence, so that each antenna unit can obtain different ones.
  • the specified reference signal should be in one-to-one correspondence, so that each antenna unit can obtain different ones.
  • each antenna unit may further include a polarization module for performing polarization processing on the specified reference signal and transmitting the polarized designated reference signal to the terminal device.
  • the polarization type indicated by the polarization module in the different antenna units is different, and the polarization type may be horizontal polarization, vertical polarization, circular polarization, elliptically polarized or polarization of a specified angle, etc., in the embodiment of the present invention. This is not specifically limited.
  • the terminal device acquires, according to the auxiliary data configured by the network device, the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units, and receives the at least two reference signals according to the attribute information. .
  • the terminal device acquires the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units according to the auxiliary data configured by the network device. And receiving at least two reference signals based on the attribute information The process is the same and will not be repeated here.
  • the terminal device obtains positioning information by measuring the at least two reference signals, and sends the positioning information and the identifier information of the antenna unit corresponding to the positioning information to the network device.
  • the step and the step 304 of the terminal device obtain the positioning information by measuring the at least two reference signals, and send the positioning information and the identifier information of the antenna unit corresponding to the positioning information to the network device. The same, no longer repeat here.
  • the network device locates the terminal device according to the received positioning information and the identifier information of the antenna unit corresponding to the positioning information.
  • the process is the same as the process in which the network device locates the terminal device according to the received positioning data in the foregoing step 305, and details are not described herein again.
  • the network device generates a specified number of reference signals according to a specified number of scrambling codes, each reference signal is scrambled by a different scrambling code; and then sends a specified number of reference signals to a specified number of antenna units.
  • each antenna unit of the specified number of antenna units After receiving the specified number of reference signals, each antenna unit of the specified number of antenna units performs descrambling processing on the reference signal corresponding to the self-scrambling code to obtain a designated reference signal, and sends the designated reference signal to the terminal device;
  • the terminal device acquires, according to the auxiliary data configured by the network device, the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units; and receives at least two reference signals according to the attribute information;
  • the two reference signals acquire positioning information, and send the positioning information and the identification information of the antenna unit corresponding to the positioning information to the network device. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received reference signal is from, so the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • FIG. 6 is a structural diagram of a positioning system according to an embodiment of the present invention, which is a distributed antenna system, in order to enable a terminal device to identify a reference signal transmitted by different antenna units in a distributed antenna system, and considers moving In the communication system, different signals can be polarized by using different polarization types, so that the receiving end can distinguish the received signals according to different polarization types.
  • the polarization separation method is used to The distributed antenna system has been improved.
  • the distributed antenna system includes a network device and a specified number of antenna elements.
  • the network device is configured to generate a reference signal, and the reference signal is sent to a specified number of antenna units.
  • Each antenna unit includes a polarization module, an antenna, or the like, or a device having the same function.
  • the polarization module is configured to polarize the reference signal with a specified polarization type to obtain a specified reference signal.
  • Polarization modules in different antenna elements The polarization type is different, and the polarization type may be horizontal polarization, vertical polarization, circular polarization, elliptically polarized or polarization of a specified angle, and the like, which is not specifically limited in the embodiment of the present invention.
  • the obtained designated reference signal is transmitted to the terminal device through the antenna.
  • different antenna units respectively transmit reference signals of different polarization types to the terminal device, and at the same time, the correspondence between the identifier of each antenna unit and the polarization type of the reference signal corresponding to each antenna unit is stored in the network device. .
  • connection between the network device and the specified number of antenna units may be a physical connection, such as a coaxial cable or an optical cable connection, or a wireless connection, which is not specifically limited in this embodiment of the present invention.
  • the distributed antenna system shown in FIG. 6 further includes a coupler for distributing the transmission power of the signal to each antenna unit as evenly as possible, so that the transmission power of each antenna unit is substantially the same.
  • FIG. 7 is a flowchart of a positioning method provided by the positioning system shown in FIG. 6 according to an embodiment of the present invention.
  • the interaction subject is a network device, a specified number of antenna units, and a terminal device.
  • the method process provided by the embodiment of the present invention includes:
  • the network device generates a reference signal, and sends the reference signal to a specified number of antenna units.
  • the network device is coupled to a specified number of antenna elements to form a distributed antenna system.
  • the network device refers to a physical or logical entity for generating a reference signal, processing a reference signal, and having a function for locating a terminal device in a distributed antenna system.
  • the specific embodiment of the network device is not limited in this embodiment of the present invention.
  • each antenna unit of the specified number of antenna units after receiving the reference signal, perform polarization processing on the reference signal with a specified polarization type, obtain a designated reference signal, and send the designated reference signal to the terminal device. .
  • the polarization modules of different antenna elements in the system indicate different polarization types, which may be horizontal polarization, vertical polarization, circular polarization, elliptically polarized or polarization at a specified angle.
  • the embodiment of the present invention does not specifically limit this.
  • the polarization signal is used to perform polarization processing on the designated signal with a specified polarization type to obtain a designated reference signal, and the designated reference signal is sent to the terminal device.
  • a specified number of antenna units respectively perform polarization processing on the reference signals to obtain designated reference signals having different polarization types.
  • the polarization type corresponding to the polarization module P1 in the antenna unit A1 is horizontal polarization, and the pole corresponding to the polarization module P2 in the antenna unit A2.
  • the polarization type is circular polarization
  • the polarization type corresponding to the polarization module P3 in the antenna unit A3 is vertical polarization.
  • the reference signal is circularly polarized, and the reference signal having circular polarization is transmitted to the terminal device; when the antenna unit A3 receives the reference signal, the reference signal is vertically polarized by the polarization module P3, and the reference signal having vertical polarization is used. Send to the terminal device.
  • different antenna units transmit reference signals having different polarization types to the terminal device, so that the terminal device can determine the antenna unit corresponding to the received reference signal according to different polarization types. For details, refer to step 703 below.
  • the terminal device acquires, according to the auxiliary data configured by the network device, an identifier of the at least two antenna units and a polarization type of the reference signal corresponding to each of the at least two antenna units, and receives at least two according to the polarization type.
  • Reference signal . .
  • the process of locating the terminal device may be initiated by the terminal device side, or may be initiated by the network device side, which is not specifically limited in this embodiment of the present invention.
  • the network device After receiving the positioning request sent by the terminal device, the network device sends the positioning capability request signaling to the terminal device. After receiving the signaling, the terminal device returns the corresponding positioning capability information. Includes available hardware resources, location resolution capabilities, signal quality, and more.
  • the terminal device sends an auxiliary data request to the network device, and after receiving the auxiliary data request, the network device returns the configured auxiliary data, where the auxiliary data includes at least two antenna element identifiers and each of the at least two antenna units The polarization type of the reference signal corresponding to the antenna unit.
  • the terminal device acquires, according to the auxiliary data configured by the network device, an identifier of the at least two antenna units and a polarization type of the reference signal corresponding to each of the at least two antenna units, and receives at least two reference signals according to the polarization type.
  • Table 1 the correspondence between the identifier of each antenna unit in the auxiliary data and the polarization type of the reference signal corresponding to each antenna unit can be as shown in Table 1:
  • the identifier A1 of the antenna unit corresponding to P1 can be obtained according to the correspondence relationship shown in Table 1.
  • the identifier A2 of the antenna unit corresponding to the reference signal of the polarization type P2 can be obtained, and the identifier of the antenna unit corresponding to the reference signal of the polarization type P3 is A3.
  • the auxiliary data sent by the network device to the terminal device may further include a reference signal receiving time window, so that after receiving the reference signal time window, the terminal device receives the reference signal only in time window according to the polarization type.
  • the reference information number which can reduce the power consumption of the terminal device.
  • the terminal device obtains the positioning information by measuring the at least two reference signals, and sends the positioning information and the identifier information of the antenna unit corresponding to the positioning information to the network device.
  • the terminal device obtains the positioning information by measuring the at least two reference signals, and sends the positioning information and the identifier information of the antenna unit corresponding to the positioning information to the network device. , will not repeat them here.
  • the network device locates the terminal device according to the received positioning information and the identifier information of the antenna unit corresponding to the positioning information.
  • the process is the same as the process in which the network device locates the terminal device according to the received positioning data in the foregoing step 305, and details are not described herein again.
  • the network device sends the generated reference signal to a specified number of antenna units; after receiving the reference signal, each antenna unit of the specified number of antenna units performs the specified polarization type on the reference signal.
  • Polarization processing obtaining a designated reference signal, and transmitting the designated reference signal to the terminal device; the terminal device acquiring, according to the auxiliary data configured by the network device, an identifier of the at least two antenna units and corresponding to each of the at least two antenna units The polarization type of the reference signal; receiving at least two reference signals according to the attribute information; acquiring the positioning information by measuring at least two reference signals; and transmitting the positioning information and the identification information of the antenna unit corresponding to the positioning information to the network device. Since different antenna units can polarize the reference signal by different polarization types, the terminal device can identify which antenna unit the received reference signal comes from according to the polarization type, so the improved distributed antenna system can implement the terminal device. Positioning and improved indoor positioning accuracy.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the receiver 801, the transmitter 802, the processor 803, and the memory 804, the receiver 801, and the transmitter 802 are included.
  • the memory 804 is respectively connected to the processor 803, and the processor 803 is configured to: acquire the identifiers of the at least two antenna units and the attributes of the reference signals corresponding to each of the at least two antenna units according to the auxiliary data configured by the network device Receiving at least two reference signals according to the attribute information, wherein at least two reference signals are respectively sent by corresponding ones of the at least two antenna units; obtaining positioning information by measuring at least two reference signals; positioning information and positioning The identification information of the corresponding antenna unit of the information is sent to the network device.
  • the positioning information includes a signal arrival time difference
  • the processor 803 is configured to: acquire a signal arrival time difference of the reference signal transmitted by each of the at least two reference signals. Since the terminal device can distinguish the antenna unit that transmits each reference signal, the positioning method of observing the signal arrival time difference can be applied to the distributed positioning system to achieve indoor positioning.
  • the processor 803 is configured to: receive auxiliary data sent by the network device.
  • the indoor signal can be realized by distinguishing the reference signal transmitted by the antenna unit according to the auxiliary data reception.
  • the terminal device acquires, according to the auxiliary data configured by the network device, the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units; and receives at least two according to the attribute information.
  • Reference signals wherein at least two reference signals are respectively transmitted by respective ones of the at least two antenna units; obtaining positioning information by measuring at least two reference signals; and positioning information and identification information of the antenna unit corresponding to the positioning information Send to a network device. Since the terminal device can recognize which antenna unit the received reference signal comes from, the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • FIG. 9 is a block diagram of a positioning information sending apparatus according to an embodiment of the present invention.
  • the method includes: an obtaining module 901, a receiving module 902, a measuring module 903, and a sending module 904.
  • the obtaining module 901 is connected to the receiving module 902, and configured to acquire, according to the auxiliary data configured by the network device, the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units.
  • the receiving module 902 Connected to the measurement module 903, configured to receive at least two reference signals according to the attribute information, wherein at least two reference signals are respectively sent by corresponding ones of the at least two antenna units; the measurement module 903 is connected to the sending module 904, for The positioning information is obtained by measuring at least two reference signals; the sending module 904 is configured to send the positioning information and the identification information of the antenna unit corresponding to the positioning information to the network device.
  • the positioning information includes a signal arrival time difference
  • the measuring module 903 is configured to acquire a signal arrival time difference of the reference signal sent by each of the at least two reference signals. Due to terminal The device can distinguish the antenna unit that transmits each reference signal, so the positioning method of observing the arrival time difference of the signal can be applied to the distributed positioning system to achieve indoor positioning.
  • the receiving module 902 is further configured to receive auxiliary data sent by the network device.
  • the indoor signal can be realized by distinguishing the reference signal transmitted by the antenna unit according to the auxiliary data reception.
  • the device provided by the embodiment of the present invention acquires, according to the auxiliary data configured by the network device, the identifiers of the at least two antenna units and the attribute information of the reference signals corresponding to each of the at least two antenna units; and receives at least two according to the attribute information.
  • a reference signal wherein at least two reference signals are respectively transmitted by respective ones of the at least two antenna units; obtaining positioning information by measuring at least two reference signals; transmitting positioning information and identification information of the antenna unit corresponding to the positioning information Give network devices. Since the terminal device can recognize which antenna unit the received reference signal comes from, the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the device includes: a receiver 1001, a transmitter 1002, a memory 1003, and a processor 1004.
  • the receiver 1001, the transmitter 1002, and the memory 1003 is respectively connected to the processor 1004, the processor 1004 is configured to: generate a specified number of reference signals, each reference signal has different attribute information;
  • the network device further includes a frequency conversion module 1005 and a local oscillator module 1006, the local oscillator The module is connected to the frequency conversion module, and the frequency conversion module is connected to the transmitter; the frequency conversion module is configured to respectively convert the generated specified number of reference signals to different carrier frequencies according to different local oscillator frequencies generated by the local oscillator module, and Transmitted to a specified number of antenna elements by the transmitter.
  • the network device provided by the embodiment of the present invention generates a specified number of reference signals, each reference signal has different identification information; and respectively converts a specified number of reference signals to different carrier frequencies and transmits to a specified number of antenna units, by a specified number of Each antenna unit in the antenna unit acquires a reference signal carried on a carrier frequency corresponding to itself. Since the network device allocates reference signals having different identification information to different antenna units in a frequency domain separation manner, so that the terminal device can identify which antenna unit the received reference signal is from, the improved distributed antenna system can be implemented. Positioning of the terminal device and improving indoor positioning accuracy.
  • FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • a receiver 1101, a transmitter 1102, a memory 1103, and a processor 1104 are provided.
  • the receiver 1101, the transmitter 1102, and the memory are 1103 is respectively connected to the processor 1104, and the processor 1104 is
  • the method is configured to: obtain a specified number of scrambling codes, and generate a specified number of reference signals, each reference signal is scrambled by a different scrambling code;
  • the network device further includes a scrambling module 1105 and a scrambling code generating module 1106, the scrambling The module is connected to the scrambling code generating module, and the scrambling module is connected to the transmitter;
  • the scrambling code generating module is configured to generate a specified number of scrambling codes;
  • the scrambling module is configured to generate a specified number of reference signals, each reference signal is Different scrambling codes are scrambled; the specified number of reference signals are transmitted by the transmitter to a
  • the network device acquires a specified number of scrambling codes; generates a specified number of reference signals, each reference signal is scrambled by a different scrambling code; and sends a specified number of reference signals to a specified number of antenna units, A reference signal corresponding to the self scrambling code is acquired by each of the specified number of antenna elements. Since the network device allocates reference signals having different identification information to different antenna units by means of code domain separation, so that the terminal device can identify which antenna unit the received reference signal is from, the improved distributed antenna system can be implemented. Positioning of the terminal device and improving indoor positioning accuracy.
  • an embodiment of the present invention further provides a positioning system, where the system includes: a network device, and multiple antenna units; the network device is configured to generate multiple reference signals with different identification information, and the multiple The reference signals are respectively frequency-converted to different carrier frequencies and sent to the plurality of antenna units, the plurality of reference signals being different positioning reference signals; each of the plurality of antenna units is used for receiving the network device to send more After the reference signals, the reference signal carried on the carrier frequency corresponding to itself is mixed, the designated reference signal is obtained, and the designated reference signal is sent to the terminal device.
  • each antenna unit is further configured to perform polarization processing on the specified reference signal with a specified polarization type after obtaining the specified reference signal; and send the polarized designated reference signal to the terminal device. Since the different antenna units can polarize the reference signals with different polarization types, the terminal device can identify the antenna unit that transmits the reference signal according to the polarization type of the reference signal, thereby improving the positioning accuracy.
  • the network device after generating a specified number of reference signals, the network device respectively converts the specified number of reference signals to different carrier frequencies and sends them to a specified number of antenna units; each antenna unit of the specified number of antenna units After receiving the specified number of reference signals, the reference signal carried on the carrier frequency corresponding to the carrier is subjected to mixing processing to obtain a designated reference signal, and the designated reference signal is sent to the terminal device. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received reference signal is from, so the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • an embodiment of the present invention further provides a positioning system, where the system includes: a network device, multiple antenna units; the network device is configured to acquire a specified number of scrambling codes, and generate multiple reference signals, Each reference signal is scrambled by a different scrambling code; the plurality of reference signals are sent to the plurality of antenna units; each of the plurality of antenna units is configured to, after receiving the plurality of reference signals, The reference signal corresponding to the self-scrambling code is descrambled to obtain a specified reference signal, and the designated reference signal is sent to the terminal device.
  • each antenna unit is further configured to perform polarization processing on the specified reference signal with a specified polarization type after obtaining the specified reference signal; and send the polarized designated reference signal to the terminal device. Since the different antenna units can polarize the reference signals with different polarization types, the terminal device can identify the antenna unit that transmits the reference signal according to the polarization type of the reference signal, thereby improving the positioning accuracy.
  • the network device generates a specified number of reference signals according to a specified number of scrambling codes, each reference signal is scrambled by a different scrambling code; and then sends a specified number of reference signals to a specified number of antenna units.
  • each antenna unit of the specified number of antenna units descrambles the reference signal corresponding to the self-scrambling code to obtain a designated reference signal, and sends the designated reference signal to the terminal device. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received reference signal is from, so the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • an embodiment of the present invention further provides a positioning system, where the system includes: a network device, and multiple antenna units; the network device is configured to generate a reference signal, and send the reference signal to the multiple An antenna unit; each of the plurality of antenna units is configured to perform polarization processing on the reference signal with a specified polarization type after receiving the reference signal, to obtain multiple reference signals with different polarization types, and The plurality of reference signals are transmitted to the terminal device.
  • the network device sends the generated reference signal to a specified number of antenna units; after receiving the reference signal, each antenna unit of the specified number of antenna units performs the specified polarization type on the reference signal.
  • Polarization processing obtaining a specified reference signal, and transmitting the designated reference signal to the terminal device. Since different antenna units can polarize the reference signal by different polarization types, the terminal device can identify which antenna unit the received reference signal comes from according to the polarization type, so the improved distributed antenna system can implement the terminal device. Positioning and improve the interior setting Bit precision.
  • an embodiment of the present invention further provides an antenna unit, such as the antenna unit shown in FIG. 2, the antenna unit includes a splitter, a mixing module, and an antenna;
  • the mixing module is configured to generate a specified local oscillator frequency, and after receiving the specified number of reference signals by the splitter, perform mixing processing on the reference signal carried on the carrier frequency corresponding to the specified local oscillator frequency according to the specified local oscillator frequency. And obtaining a designated reference signal; sending the designated reference signal to the terminal device through the antenna.
  • the antenna unit After receiving the specified number of reference signals, the antenna unit provided by the embodiment of the present invention performs mixing processing on the reference signal carried on the carrier frequency corresponding to itself to obtain a designated reference signal. Send the specified reference signal to the terminal device. Since the antenna unit can obtain the reference signal of the carrier frequency corresponding to itself, the terminal device can identify which antenna unit the received reference signal comes from, so the improved distributed antenna system can realize the positioning of the terminal device and improve the indoor positioning. Precision.
  • an embodiment of the present invention further provides an antenna unit, such as the antenna unit shown in FIG. 4, the antenna unit includes a splitter, a descrambling module, and an antenna; the descrambling module is configured to generate a designated Scrambling the code, and after receiving the specified number of reference signals transmitted by the splitter, performing descrambling processing on the reference signal corresponding to the self-scrambling code according to the specified scrambling code to obtain a designated reference signal; The specified reference signal is sent to the terminal device.
  • the antenna unit includes a splitter, a descrambling module, and an antenna; the descrambling module is configured to generate a designated Scrambling the code, and after receiving the specified number of reference signals transmitted by the splitter, performing descrambling processing on the reference signal corresponding to the self-scrambling code according to the specified scrambling code to obtain a designated reference signal; The specified reference signal is sent to the terminal device.
  • the antenna unit provided by the embodiment of the present invention is configured to generate a specified scrambling code, and after receiving the specified number of reference signals transmitted through the splitter, according to the specified scrambling code, the reference corresponding to the self-scrambling code
  • the signal is descrambled to obtain a designated reference signal; the designated reference signal is transmitted to the terminal device through the antenna. Since the reference signals acquired by different antenna units are different, the terminal device can identify which antenna unit the received reference signal is from, so the improved distributed antenna system can realize positioning of the terminal device and improve indoor positioning accuracy.
  • an embodiment of the present invention further provides an antenna unit, such as the antenna unit shown in FIG. 6, the antenna unit includes a polarization module and an antenna; and the polarization module is configured to: after receiving the reference signal, The reference signal is subjected to polarization processing with a specified polarization type to obtain a designated reference signal; the designated reference signal is transmitted to the terminal device through the antenna. Since different antenna units can polarize the reference signal with different polarization types, the terminal device can identify which antenna unit the received reference signal comes from according to the polarization type, so the improved distributed antenna system can implement the terminal device. Set Position, and improve indoor positioning accuracy.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

Abstract

本发明实施例提供了一种终端设备及定位系统,涉及通信技术领域,该终端设备被配置为,根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及所述至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据所述属性信息接收至少两个参考信号,其中,所述至少两个参考信号分别由所述至少两个天线单元中相应的天线单元发送;通过测量所述至少两个参考信号获取定位信息;将所述定位信息以及与所述定位信息相应的天线单元的标识信息发送给所述网络设备。由于不同天线单元获取到的定位信号不同,使得终端设备能够识别接收到的定位信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。

Description

终端设备及定位系统 技术领域
本发明涉及无线通信技术领域,特别涉及一种终端设备及定位系统。
背景技术
随着通信技术及通信业务的发展,定位业务作为移动通信和个人通信服务的一个不可或缺的一部分,发挥着重要作用。各种基于移动终端位置的定位服务,如智能交通、车辆导航、出行指南、紧急报警、网规网优等,都需要准确高效的定位方法。而目前广泛使用的GPS(Global Positioning System,全球定位系统)定位技术在室内因为接收不到卫星信号或者接收信号太弱而无法实现室内定位。一些室内定位技术,如基于无线局域网、蓝牙等的室内定位技术,虽然可以实现室内定位,但是需要安装大量的第三方设备,不仅安装和维护费用昂贵,而且受环境影响较大,导致系统性能不稳定。如今,随着智能手机的普及,利用移动通信网络进行室内定位已成为流行的定位方式。
现有技术中,基于移动通信网络的定位方法中比较常用的是OTDOA(Observed Time Difference Of Arrival,观察到达时间差)技术,其定位过程中终端设备在接收到多个基站发送的不同的PRS(Positioning Reference Signal,定位参考信号)后,计算接收到任意两个PRS的时间差值,得到多个时间差值,并将多个时间差值和与每个时间差值对应的基站标识发送至定位服务器。对于每个时间差值和与其对应的基站标识,定位服务器根据该时间差值和与基站标识对应的基站位置,计算得到一个双曲线定位区,最终得到多个双曲线定位区域。之后,通过计算多个双曲线定位区的交点得到该终端设备的位置信息。
在实现本发明的过程中,发明人发现现有技术至少存在以下问题:
上述定位过程中,参与定位的节点是宏基站,对于室内环境而言,由于多径、NLOS(Non Line Of Sight,非视距)等传播环境的影响,使得终端设备接收到的信号质量差甚至接收不到信号,导致无法准确定位,因此定位精度差。
发明内容
为了解决现有技术的问题,本发明实施例提供了一种终端设备及定位系统。
第一方面,提供了一种终端设备,所述终端设备包括接收机、发射机、处理器和存储器,所述接收机、所述发射机和所述存储器分别与所述处理器连接,所述处理器被配置为:
根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及所述至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据所述属性信息接收至少两个参考信号,其中,所述至少两个参考信号分别由所述至少两个天线单元中相应的天线单元发送;通过测量所述至少两个参考信号获取定位信息;将所述定位信息以及与所述定位信息相应的天线单元的标识信息发送给所述网络设备。由于终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第一方面,在第一方面的第一种可能的实现方式中,所述定位信息包括信号到达时间差,所述处理器被配置为:获取所述至少两个参考信号中每两个天线单元所发送的参考信号的信号到达时间差。由于终端设备能够区分发送每个参考信号的天线单元,因此可将观察信号到达时间差的定位方法应用到分布式定位系统,实现室内定位。
结合第一方面,在第一方面的第二种可能的实现方式中,所述处理器被配置为:接收网络设备发送的所述辅助数据。由可根据辅助数据接收区分天线单元发送的参考信号,因此可实现室内定位。
第二方面,提供了一种定位信息发送装置,其特征在于,所述装置包括:
获取模块,用于根据网络设备配置的辅助数据获取至少两个天线单元的标识以及所述至少两个天线单元中每个天线单元对应的参考信号的属性信息;接收模块,用于根据所述属性信息接收至少两个参考信号,其中,所述至少两个参考信号分别由所述至少两个天线单元中相应的天线单元发送;测量模块,用于通过测量所述至少两个参考信号获取定位信息;发送模块,用于将所述定位信息以及与所述定位信息相应的天线单元的标识信息发送给所述网络设备。由于终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第二方面,在第二方面的第一种可能的实现方式中,所述定位信息包括信号到达时间差,所述测量模块,用于获取所述至少两个参考信号中每两个天线单元所发送的参考信号的信号到达时间差。由于终端设备能够区分发送每个参考信号的天线单元,因此可将观察信号到达时间差的定位方法应用到分布式定位系统,实现室内定位。
结合第二方面,在第二方面的第二种可能的实现方式中,,所述接收模块,还用于接收网络设备发送的所述辅助数据。由可根据辅助数据接收区分天线单元发送的参考信号,因此可实现室内定位。
第三方面,提供了一种网络设备,其特征在于,所述网络设备包括接收机、发射机、处理器和存储器,所述接收机、所述发射机和所述存储器分别与所述处理器连接,所述处理器被配置为:生成指定数目的参考信号,每个参考信号的属性信息不同;所述网络设备还包括变频模块和本振模块,所述本振模块与所述变频模块连接,所述变频模块与发射机相连;所述变频模块用于根据所述本振模块产生的不同的本振频率,将生成的指定数目的参考信号分别变频到不同载频上,并通过发射机发送至指定数目的天线单元。由于网络设备采用频域分离的方式将属性信息不同的参考信号分配至不同的天线单元,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
第四方面,提供了一种网络设备,其特征在于,所述网络设备包括接收机、发射机、处理器和存储器,所述接收机、所述发射机和所述存储器分别与所述处理器连接,所述处理器被配置为:获取指定数目的扰码,并生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到,每个参考信号的属性信息不同;所述网络设备还包括加扰模块和扰码生成模块,所述加扰模块与所述扰码生成模块连接,所述加扰模块与发射机相连;所述扰码生成模块用于生成指定数目的扰码;所述加扰模块用于生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到;通过发射机将所述指定数目的参考信号发送至指定数目的天线单元。由于网络设备采用码域分离的方式将不同的参考信号分配至不同的天线单元,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
第五方面,提供了一种定位系统,其特征在于,所述系统包括:网络设备、多个天线单元,所述网络设备用于生成多个参考信号,将所述多个参考信号分别变频到不同载频上发送至所述多个天线单元,每个参考信号的属性信息不同;所述多个天线单元中的每个天线单元用于在接收到网络设备发送的多个参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,并将所述指定参考信号发送至终端设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第五方面,在第五方面的第一种可能的实现方式中,所述每个天线单元还用于在得到所述指定参考信号后,对所述指定参考信号以指定极化类型进行极化处理;将极化后的指定参考信号发送至所述终端设备。由于不同的天线单元可将参考信号以不同的极化类型进行极化,因此终端设备可根据参考信号的极化类型识别发送该参考信号的天线单元,从而提高定位精度。
第六方面,提供了一种定位系统,其特征在于,所述系统包括:网络设备、多个天线单元;所述网络设备用于获取指定数目的扰码,并生成多个参考信号,每个参考信号由不同的扰码加扰得到,每个参考信号的属性信息不同;将所述多个参考信号发送至所述多个天线单元;所述多个天线单元中的每个天线单元用于在接收到多个参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,并将所述指定参考信号发送至所述终端设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的定位信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第六方面,在第六方面的第一种可能的实现方式中,所述每个天线单元还用于在得到所述指定参考信号后,对所述指定参考信号以指定极化类型进行极化处理;将极化后的所述指定参考信号发送至所述终端设备。由于不同的天线单元可将参考信号以不同的极化类型进行极化,因此终端设备可根据参考信号的极化类型识别发送该参考信号的天线单元,从而提高定位精度。
第七方面,提供了一种定位系统,其特征在于,所述系统包括:网络设备、多个天线单元;所述网络设备用于生成参考信号,并将所述参考信号发送至所述多个天线单元;所述多个天线单元中的每个天线单元用于在接收到所述参考信号后,对所述参考信号以指定极化类型进行极化处理,得到极化类型不同的多个参考信号,并将所述多个参考信号发送至所述终端设备。由于不同天线单元可以不同的极化类型对参考信号进行极化,使得终端设备能够根据极化类型识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
第八方面,提供了一种定位信息发送方法,所述方法包括:
根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及所述至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据所述属性信息接收至少两个参考信号,其中,所述至少两个参考信号分别由所述至少两个天线单元中相应的天线单元发送;通过测量所述至少两个参考信号获取定位信息;将所述定位信息以及与所述定位信息相应的天线单元的标识信息发送给所述网络设备。由于终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第八方面,在第八方面的第一种可能的实现方式中,所述定位信息包括信号到达时间差,所述方法还包括:
获取所述至少两个参考信号中每两个天线单元所发送的参考信号的信号到达时间差。由于终端设备能够区分发送每个参考信号的天线单元,因此可将观察信号到达时间差的定位方法应用到分布式定位系统,实现室内定位。
结合第八方面,在第八方面的第二种可能的实现方式中,接收网络设备发送的所述辅助数据。由于可根据辅助数据接收区分天线单元发送的参考信号,因此可实现室内定位。
第九方面,提供了一种参考信号发送方法,所述方法包括:
生成指定数目的参考信号,每个参考信号的属性信息不同;根据不同的本振频率,将生成的指定数目的参考信号分别变频到不同载频上,并发送至指定数目的天线单元。由于网络设备采用频域分离的方式将属性信息不同的参考信 号分配至不同的天线单元,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第九方面,在第九方面的第一种可能的实现方式中,所述不同载频的频谱之间互相不干扰,使得携带在不同载频上的参考信号之间相互隔离、互不干扰。
第十方面,提供一种参考信号发送方法,所述方法包括:
在接收到网络设备发送的多个参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,并将所述指定参考信号发送至终端设备。由于天线单元可获取与自身对应载频的参考信号,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第十方面,在第十方面的第一种可能的实现方式中,得到所述指定参考信号之后,所述方法还包括:
对所述指定参考信号以指定极化类型进行极化处理;将极化后的指定参考信号发送至所述终端设备。由于不同的天线单元可将参考信号以不同的极化类型进行极化,因此终端设备可根据参考信号的极化类型识别发送该参考信号的天线单元,从而提高定位精度。
第十一方面,提供了一种参考信息发送方法,所述方法包括:
获取指定数目的扰码,并生成多个参考信号,每个参考信号由不同的扰码加扰得到,每个参考信号的属性信息不同;将所述多个参考信号发送至所述多个天线单元;由所述指定数目的天线单元中每个天线单元获取携带在与自身对应载频上的参考信号。由于网络设备采用码域分离的方式将具有不同属性信息的参考信号分配至不同的天线单元,使得终端设备能够识别接收到的定位信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第十一方面,在第十一方面的第一种可能的实现方式中,所述不同的扰码之间相互正交,使得由不同扰码加扰得到的参考信号之间互不干扰。
第十二方面,提供了一种参考信号发送方法,所述方法包括:
在接收到多个参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,并将所述指定参考信号发送至所述终端设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的定位信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
结合第十二方面,在第十二方面的第一种可能的实现方式中,得到所述指定参考信号之后,所述方法还包括:
对所述指定参考信号以指定极化类型进行极化处理;将极化后的指定参考信号发送至所述终端设备。由于不同的天线单元可将参考信号以不同的极化类型进行极化,因此终端设备可根据参考信号的极化类型识别发送该参考信号的天线单元,从而提高定位精度。
第十三方面,提供了一种定位信息发送方法,所述方法包括:
根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及所述至少两个天线单元中每个天线单元对应的参考信号的极化类型;根据所述极化类型接收至少两个参考信号,其中,所述至少两个参考信号分别由所述至少两个天线单元中相应的天线单元发送;通过测量所述至少两个参考信号获取定位信息;将所述定位信息以及与所述定位信息相应的天线单元的标识信息发送给所述网络设备。由于终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
第十四方面,提供了一种参考信号发送方法,所述方法包括:
当接收到参考信号后,对所述参考信号以指定极化类型进行极化处理;将极化后的参考信号发送至终端设备。由于不同的天线单元可将参考信号以不同的极化类型进行极化,因此终端设备可根据参考信号的极化类型识别发送该参考信号的天线单元,从而提高定位精度。
第十五方面,提供了一种天线单元,所述天线单元包括分路器、混频模块和天线;所述混频模块用于产生指定本振频率,并在通过分路器接收到指定数 目的参考信号后,根据所述指定本振频率,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号;通过所述天线将所述指定参考信号发送至终端设备。由于天线单元可获取与自身对应载频的参考信号,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
第十六方面,提供了一种天线单元,所述天线单元包括分路器、解扰模块和天线;所述解扰模块用于生成指定扰码,并在接收到经由分路器传输的指定数目的参考信号后,根据所述指定扰码,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号;通过所述天线将所述指定参考信号发送至终端设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
第十七方面,提供了一种天线单元,所述天线单元包括偏振模块和天线;所述偏振模块用于当接收到参考信号后,对所述参考信号以指定极化类型进行极化处理,得到指定参考信号;通过所述天线将所述指定参考信号发送至终端设备。由于不同天线单元可以不同的极化类型对参考信号进行极化,使得终端设备能够根据极化类型识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
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作简单地介绍,显而易见地,下面描述中的附图仅仅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的前提下,还可以根据这些附图获得其他的附图。
图1是一种分布式天线系统结构图;
图2是本发明实施例提供的一种定位系统结构图;
图3是本发明实施例提供的一种定位方法的流程图;
图4是本发明实施例提供的一种定位系统结构图;
图5是本发明实施例提供的一种定位方法的流程图;
图6是本发明实施例提供的一种定位系统结构图;
图7是本发明实施例提供的一种定位方法的流程图;
图8是本发明实施例提供的一种终端设备的结构示意图;
图9是本发明实施例提供的一种定位信息发送装置的框图;
图10是本发明实施例提供的一种网络设备的结构示意图
图11是本发明实施例提供的一种网络设备的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明实施方式作进一步地详细描述。
为了更好地对本发明提供的实施例进行解释说明,首先对本发明实施例的应用场景进行说明,现有的分布式天线系统能够提高室内的通信质量,如图1所示为一种分布式天线系统结构图,包括网络设备和多个天线单元,其中多个天线单元位于室内,并与网络设备相连。现有的分布式天线系统中网络设备(如图1所示的基站)仅能向与之连接的每个天线单元均发送相同的参考信号,由每个天线单元将接收到的参考信号发送至终端设备。这样,由于每个参考信号都相同,使得终端设备在室内接收到参考信号后,不能分辨出发送该参考信号的天线单元,因此使用现有的分布式天线系统无法实现室内定位,本发明提供的实施例对现有的分布式天线系统进行了改进,使得改进后的分布式天线系统能够实现室内定位,并且提高了移动网络的室内定位精度,具体改进方式和定位过程详见下述各实施例。
图2是本发明实施例提供的一种定位系统结构图,该定位系统为一种分布式天线系统,为了使终端设备能够识别分布式天线系统中不同天线单元发送的参考信号,且考虑到移动通信系统中可将不同的信号分离到不同的频域进行传输,进而使得接收端可根据不同的频域对接收到的信号进行区分,本发明实施例利用频域分离的方法对现有的分布式天线系统进行了改进,参见图2,该分布式天线系统中包括网络设备和指定数目的天线单元。其中在网络设备向天线单元发送信号的端口处,增加变频模块和本振模块,本振模块用于产生不同的本振频率。网络设备用于生成属性信息不同的指定数目的参考信号,并根据不同的本振频率将指定数目的参考信号变频至不同的载频上,即将不同的参考信 号在频域进行分离;之后将频域不同的指定数目的参考信号发送至指定数目的天线单元。每个天线单元包括分路器、混频模块和天线等,或具有相同功能的器件。其中,混频模块可产生指定本振频率,用于对与天线单元自身对应载频的参考信号进行混频处理,将得到的指定参考信号发送至终端设备。最终,不同的天线单元分别向终端设备发送不同的参考信号,同时在网络设备中存储了每个天线单元的标识和每个参考信号的属性信息之间的对应关系。
需要说明的是,网络设备与指定数目的天线单元之间的连接方式可为物理连接,比如同轴电缆或光缆连接,也可为无线连接,本发明实施例对此不进行具体限定。图2所示的分布式天线系统中还包括耦合器,耦合器和天线单元的分路器用于使信号的发射功率能够尽量平均分配到每个天线单元,使每个天线单元的发射功率基本相同。
图3是本发明实施例结合图2所示定位系统提供的一种定位方法的流程图,涉及交互主体为网络设备、指定数目的天线单元和终端设备。参见图3,本发明实施例提供的方法流程包括:
301、网络设备在生成指定数目的参考信号后,将该指定数目的参考信号分别变频到不同载频上发送至指定数目的天线单元。
在本发明实施例中,网络设备与指定数目的天线单元相连接,构成一个分布式天线系统。其中,网络设备指代分布式天线系统中用于生成参考信号、处理参考信号,并具有对终端设备进行定位功能的物理或逻辑实体,本发明实施例对网络设备的具体形态不进行限定。网络设备生成指定数目的参考信号,每个参考信号的属性信息不同,其中,属性信息包括生成该参考信号的伪随机序列、资源映射方式等,使得终端设备能够根据属性信息还原出相应的参考信号;之后,将该指定数目的参考信号分别变频到不同载频上发送至指定数目的天线单元,具体实现过程如下:
网络设备首先生成具有指定数目的参考信号,其中每个参考信号的初始载频相同,均为固定载频;具有固定载频的指定数目的参考信号被传送至变频模块后,变频模块根据本振模块产生的不同的本振频率,将生成的指定数目的参考信号分别变频到不同载频上,得到携带在不同载频上的指定数目的参考信号,并将该带在不同载频上的指定数目的参考信号发送至指定数目的天线单元。
例如,网络设备首先生成了3个参考信号S1、S2和S3,其中S1、S2和S3具有不同的标识信息,且初始载频相同,均为固定载频F1;本振模块产生了两个本振频率F4和F5,利用变频模块可将不同的参考信号变频至不同载频上,比如变频模块将S2的初始载频F1与本振频率F4进行混频,使得参考信号S2变频至载频F2上;变频模块将S3的初始载频F1与本振频率F5进行混频,使得参考信号S3变频至载频F3上。此时,参考信号S1的载频为F1,参考信号S2的载频为F2,参考信号S3的载频为F3,使得不同的参考信号分别变频至不同载频上。
其中,不同载频的频谱之间互相不干扰。
需要说明的是,上述仅以网络设备生成3个参考信号为例进行解释说明,本发明实施例对网络设备生成的参考信号的数目不进行具体限定。本振模块产生的本振频率的数目可与网络设备生成的参考信号的指定数目相同,也可为指定数目减1,本发明实施例对此不进行具体限定。当本振频率的数目为指定数目减1时,指定数目的参考信号中的一个参考信号的载频没有经过变频处理,即始终是固定载频;当本振频率的数目为指定数目时,指定数目的参考信号中的每个参考信号的载频均经过了变频处理。
302、对于指定数目的天线单元中的每个天线单元,当接收到指定数目的参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,并将该指定参考信号发送至终端设备。
在本发明实施例中,由于在LTE(Long Term Evolution,长期演进)系统中,网络设备发送的信号均在同一频点上,因此混频模块还用于将参考信号的载频还原至固定载频。对于指定数目的天线单元中的每个天线单元,当接收到指定数目的参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,详细过程如下:
每个天线单元的混频模块在通过分路器接收到指定数目的参考信号后,根据指定本振频率,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号。其中,与自身对应载频指代与本振频率进行混频后得到固定载频的载频。
例如,假如系统中有3个天线单元A1、A2和A3,天线单元A2中的混频模块产生本振频率F4,天线单元A3中的混频模块产生本振频率F5,结合步骤301中的例子,当天线单元A2接收到载频为F2的参考信号S2后,将载频 F2与本振频率F4进行混频,得到载频为固定载频F1的参考信号S2;当天线单元A3接收到载频为F3的参考信号S3后,将载频F3与本振频率F5进行混频,得到载频为固定载频F1的参考信号S3;当天线单元A1接收到指定数目的参考信号后,其混频模块直接过滤出载频为固定载频F1的参考信号S1。最终,每个天线单元分别获取到具有不同标识信息的指定参考信号,并分别将指定参考信号发送至终端设备,即天线单元A1向终端设备发送参考信号S1,天线单元A2向终端设备发送参考信号S2,天线单元A3向终端设备发送参考信号S3。
需要说明的是,每个天线单元中的混频模块产生的本振频率与网络设备对每个参考信号进行变频处理的本振频率应当一一对应相等,这样每个天线单元才能分别获取到不同的指定参考信号。
在另一实施例中,每个天线单元还可包括偏振模块,该偏振模块用于对指定参考信号进行极化处理,并将极化后的指定参考信号发送至终端设备。其中,不同的天线单元中的偏振模块指示的极化类型不同,该极化类型可为水平极化、垂直极化、圆极化、椭圆极化或指定角度的极化等,本发明实施例对此不进行具体限定。
303、终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的属性信息,并根据属性信息接收至少两个参考信号。
在发明实施例中,对终端设备进行定位的过程可通过终端设备侧发起,也可由网络设备侧发起,本发明实施例对此不进行具体限定。下面以终端设备侧发起定位为例进行解释说明,网络设备接收到终端设备发送的定位请求后,向终端设备发送定位能力请求信令;终端设备收到信令后,回复相应的定位能力信息,包括可利用的硬件资源、定位解算能力、信号质量等。之后,终端设备向网络设备发送辅助数据请求,网络设备收到辅助数据请求后,返回配置的辅助数据,该辅助数据中包括至少两个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的属性信息。此外,对于天线单元使用偏振模块极化类型区分的实施例,辅助数据还可以包括该至少两个天线单元中每个天线单元对应的参考信号的极化类型。终端设备在接收到辅助数据后,根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的属性信息,并根据属性信息接收至少两个参 考信号。其中,该至少两个参考信号分别有该至少两个天线单元中相应的天线单元发送,终端设备根据属性信息接收至少两个参考信号的过程如下:
终端设备根据每个参考信号的属性信息,还原出至少两个参考信号。之后,终端设备在多个天线单元发送的多个参考信号中,接收与还原出的每个参考信号相同的参考信号,并获取相应天线单元的标识信息。其中,天线单元的标识信息可为天线单元的名称、设备编号、ID(Identifer,标识符)号、物理地址、IP(Internet Protocol,网络协议)地址等,本发明实施例对此不进行具体限定。
需要说明的是,终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识中,天线单元的标识指代上述天线单元的标识信息中的任一种。区分天线单元的标识和天线单元的标识信息是为了说明,同一个天线单元可以具有不同的唯一标识,终端设备和网络设备在进行通信的过程中,可以采用同一天线单元的不同标识进行通信。
需要说明的是,网络设备向终端设备发送的辅助数据中,还可包括参考信号接收时间窗,使得终端设备在接收到该参考信号时间窗后,仅根据属性信息接收该参考信号时间窗内的参考信号,这样可以减少终端设备的电量消耗。
在另一实施例中,辅助数据中还可包括至少两个个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的极化类型。终端设备根据极化类型接收至少两个参考信号。
304、终端设备通过测量该至少两个参考信号获取定位信息,并将该定位信息以及该定位信息相应的天线单元的标识信息发送给网络设备。
在本发明实施例中,网络设备发送的辅助数据中,还可包括需要采用的定位方法,该定位方法可为测量到达时间差定位方法,角度检测定位方法,场强检测定位方法,本发明实施例对此不进行具体限定。
下面以测量到达时间差定位方法为例,对终端设备通过测量该至少两个参考信号获取定位信息的过程进行解释说明:终端设备在获取到至少两个参考信号和每个参考信号相应天线单元的标识信息后,获取该至少两个参考信号中每两个天线单元所发送的参考信息号的信号到达时间差,记录与信号到达时间差对应的两个天线单元的标识信息,并生成定位信息,该定位信息中包括信号到达时间差。之后,将该定位信息以及该定位信息相应的天线单元的标识信息发送给网络设备。其中,该定位信息相应的天线单元的标识信息是指,该定位信息中每个信号到达时间差对应的两个天线单元的标识信息。
需要说明的是,网络设备向终端设备发送的辅助数据中还可包括参照参考信号,终端设备记录接收到与该参照参考信号的标识信息相同的参考信号的第一到达时间,并在根据属性信息接收到任一参考信号后,计算该任一参考信号的第二到达时间,将第二到达时间与第一到达时间的时间差确定为该任一参考信号的信号到达时间差。
305、网络设备根据接收到的定位信息以及该定位信息相应的天线单元的标识信息,对终端设备进行定位。
在本发明实施例中,网络设备根据接收到的定位信息以及该定位信息相应的天线单元的标识信息对终端设备进行定位的能力。以测量到达时间差定位方法为例,网络设备存储了与之连接的每个天线单元的标识信息与每个天线单元的物理位置之间的对应关系。当网络设备接收到终端设备发送的定位信息以及该定位信息相应的天线单元的标识信息后,根据天线单元的标识信息获取与该天线单元的标识信息对应的天线单元的物理位置。之后,根据每个信号到达时间差与对应天线单元的物理位置,得到终端设备的位置。
需要说明的是,在利用测量到达时间差定位方法对终端设备进行定位时,终端设备向网络设备发送至少两个信号到达时间差以及与每个信号到达时间差对应的天线单元的标识信息,使得网络设备可根据每个信号到达时间以及与其对应的天线单元的物理位置,得到至少两个双曲线定位区域,通过计算至少两个双曲线定位区域的交点位置,便可确定终端设备的位置,进而完成对终端设备的定位。
本发明实施例提供的方法,网络设备在生成指定数目的参考信号后,将指定数目的参考信号分别变频到不同载频上发送至指定数目的天线单元;指定数目的天线单元中每个天线单元在接收到指定数目的参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,并将指定参考信号发送至终端设备;终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据属性信息接收至少两个参考信号;通过测量至少两个参考信号获取定位信息;将定位信息以及与定位信息相应的天线单元的标识信息发送给网络设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
图4是本发明实施例提供的一种定位系统结构图,该定位系统为一种分布式天线系统,为了使终端设备能够识别分布式天线系统中不同天线单元发送的参考信号,且考虑到移动通信系统中可将不同的信号分离到不同的码域进行传输,进而使得接收端可根据不同的码字对接收到的信号进行区分,本发明实施例利用码域分离的方法对现有的分布式天线系统进行了改进,参见图4,该分布式天线系统中包括网络设备和与网络设备连接的指定数目的天线单元。其中,在网络设备向天线单元发送信号的端口处,增加了加扰模块和扰码生成模块,其中扰码生成模块用于生成不同的扰码。网络设备用于根据不同的扰码,生成指定数目的参考信号,每个参考信号由不同扰码加扰得到,即将不同的参考信号分离至不同的码域上;之后将不同码域的指定数目的参考信号发送至指定数目的天线单元。每个天线单元包括分路器、解扰模块和天线等,或具有相同功能的器件。解扰模块可生成指定扰码,用于对与天线单元自身扰码对应的参考信号进行解扰处理,将得到的指定参考信号通过天线发送至终端设备。最终,不同的天线单元分别向终端设备发送不同的参考信号,同时在网络设备中存储了每个天线单元的标识和每个参考信号的属性信息之间的对应关系。
需要说明的是,网络设备与指定数目的天线单元之间的连接方式可为物理连接,比如同轴电缆或光缆连接,也可为无线连接,本发明实施例对此不进行具体限定。图4所示的分布式天线系统中还包括耦合器,耦合器和分路器用于使信号的发射功率能够尽量平均分配到每个天线单元,使每个天线单元的发射功率基本相同。
图5是本发明实施例结合图4所示的定位系统提供的一种定位方法的流程图,涉及交互主体为网络设备、指定数目的天线单元和终端设备。参见图5,本发明实施例提供的方法流程包括:
501、网络设备在获取指定数目的扰码后,生成指定数目的参考信号,并将该指定数目的参考信号发送至指定数目的天线单元。
在本发明实施例中,网络设备与指定数目的天线单元相连接,构成一个分布式天线系统。其中,网络设备指代分布式天线系统中用于生成参考信号、处理参考信号,并具有对终端设备进行定位功能的物理或逻辑实体,本发明实施例对网络设备的具体形态不进行限定。网络设备在获取指定数目的扰码后,生 成指定数目的参考信号,每个参考信号由不同的扰码加扰得到,每个参考信号的属性信息不同其中,属性信息包括生成该参考信号的伪随机序列、资源映射方式等,使得终端设备能够根据属性信息还原出相应的参考信号;将该指定数目的参考信号发送至指定数目的天线单元,具体实现过程如下:
网络设备首先生成具有不同信号标识的指定数目的初始参考信号,该指定数目的初始参考信号具有不同的标识信息。每个初始参考信号包含在固定码字中;具有固定码字的指定数目的初始参考信号被传送至加扰模块后,加扰模块根据扰码生成模块产生的不同的扰码,将指定数目的初始参考信号分别加扰为不同的码字,得到指定数目的参考信号,并将该指定数目的参考信号发送至指定数目的天线单元。
例如,网络设备首先生成了3个初始参考信号S1、S2和S3,其中S1、S2和S3具有不同的标识信息,且均包含在固定码字C1中;扰码生成模块生成了两个扰码C4和C5,利用扰码模块可将不同的初始参考信号加扰为不同的码字,比如加扰模块将包含S2的固定码字C1与扰码C4进行加扰,得到包含S2的码字C2;加扰模块将包含S3的固定码字C1与扰码C5进行加扰,得到包含S3的码字C3。此时,参考信号S1的载频为C1,参考信号S2的载频为C2,参考信号S3的载频为C3,使得不同的参考信号分别变频至不同载频上。
其中,不同的扰码之间互相正交。
需要说明的是,上述仅以网络设备生成3个参考信号为例进行解释说明,本发明实施例对网络设备生成的初始参考信号的数目不进行具体限定。扰码生成模块生成的扰码的数目可与网络设备生成的初始参考信号的指定数目相同,也可为指定数目减1,本发明实施例对此不进行具体限定。当扰码的数目为指定数目减1时,指定数目的初始参考信号中的一个初始参考信号没有经过扰码模块进行加扰处理;当扰码的数目为指定数目时,指定数目的初始参考信号中的每个初始参考信号均经过扰码模块进行了加扰处理。
在另一实施例中,网络设备直接获取指定数目的扰码,并根据指定数目的扰码分别生成码字不同的指定数目的参考信号,之后将指定数目的参考信号发送至指定数目的天线单元。
502、对于指定数目的天线单元中的每个天线单元,当接收到指定数目的参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,并将该指定参考信号发送至终端设备。
在本发明实施例中,对于指定数目的天线单元中的每个天线单元,当接收到指定数目的参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,详细过程如下:
每个天线单元的解扰模块在通过分路器接收到指定数目的参考信号后,根据指定扰码,对与自身扰码对应的参考信号进行解扰处理,得到码字为固定码字的指定参考信号。其中,与自身扰码对应的参考信号指代网络设备利用与指定扰码相同的扰码对任一初始参考信号进行加扰后,得到的参考信号。
例如,有3个天线单元A1、A2和A3,天线单元A2中的解扰模块生成扰码C4,天线单元A3中的解扰模块生成扰码C5,结合步骤501中的例子,当天线单元A2接收到码字为C2的参考信号S2后,将利用扰码C4对码字C2进行解扰,得到码字为固定码字C1的参考信号S2;当天线单元A3接收到码字为C3的参考信号S3后,将利用扰码C5对码字C3进行解扰,得到码字为固定码字C1的参考信号S3;当天线单元A1接收到指定数目的参考信号后,其中包含的解扰模块直接获取码字为固定码字C1的参考信号S1。最终,每个天线单元分别获取到具有不同标识信息的指定参考信号,并分别将指定参考信号发送至终端设备,即天线单元A1向终端设备发送参考信号S1,天线单元A2向终端设备发送参考信号S2,天线单元A3向终端设备发送参考信号S3。
需要说明的是,每个天线单元中的解扰模块产生的扰码与网络设备对每个初始参考信号进行加扰处理的扰码应当一一对应相等,这样每个天线单元才能分别获取到不同的指定参考信号。
在另一实施例中,每个天线单元还可包括偏振模块,该偏振模块用于对指定参考信号进行极化处理,并将极化后的指定参考信号发送至终端设备。其中,不同的天线单元中的偏振模块指示的极化类型不同,该极化类型可为水平极化、垂直极化、圆极化、椭圆极化或指定角度的极化等,本发明实施例对此不进行具体限定。
503、终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的属性信息,并根据属性信息接收至少两个参考信号。
在发明实施例中,该步骤与上述步骤303中终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的属性信息,并根据属性信息接收至少两个参考信号的过 程相同,在此不再赘述。
504、终端设备通过测量该至少两个参考信号获取定位信息,并将该定位信息以及该定位信息相应的天线单元的标识信息发送给网络设备。
在本发明实施例中,该步骤与上述步骤304中终端设备通过测量该至少两个参考信号获取定位信息,并将该定位信息以及该定位信息相应的天线单元的标识信息发送给网络设备的过程相同,在此不再赘述。
505、网络设备根据接收到的定位信息以及该定位信息相应的天线单元的标识信息,对终端设备进行定位。
在本发明实施例中,该步骤与上述步骤305中网络设备根据接收到的定位数据对终端设备进行定位的过程相同,在此不再赘述。
本发明实施例提供的方法,网络设备根据指定数目的扰码生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到;之后将指定数目的参考信号发送至指定数目的天线单元;指定数目的天线单元中每个天线单元在接收到指定数目的参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,并将指定参考信号发送至终端设备;终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据属性信息接收至少两个参考信号;通过测量至少两个参考信号获取定位信息;将定位信息以及与定位信息相应的天线单元的标识信息发送给网络设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
图6是本发明实施例提供的一种定位系统结构图,该定位系统为一种分布式天线系统,为了使终端设备能够识别分布式天线系统中不同天线单元发送的参考信号,且考虑到移动通信系统中可将不同的信号采用不同的极化类型进行极化,进而使得接收端可根据不同的极化类型对接收到的信号进行区分,本发明实施例利用极化分离的方法对现有的分布式天线系统进行了改进,参见图6,该分布式天线系统中包括网络设备和指定数目的天线单元。其中在网络设备用于生成参考信号,并参考信号发送至指定数目的天线单元。每个天线单元包括偏振模块和天线等,或具有相同功能的器件。其中,偏振模块用于以指定极化类型对参考信号进行极化,得到指定参考信号。不同的天线单元中的偏振模块 指示的极化类型不同,该极化类型可为水平极化、垂直极化、圆极化、椭圆极化或指定角度的极化等,本发明实施例对此不进行具体限定。之后,将得到的指定参考信号通过天线发送至终端设备。最终,不同的天线单元分别向终端设备发送极化类型不同的参考信号,同时在网络设备中存储了每个天线单元的标识和每个天线单元对应的参考信号的极化类型之间的对应关系。
需要说明的是,网络设备与指定数目的天线单元之间的连接方式可为物理连接,比如同轴电缆或光缆连接,也可为无线连接,本发明实施例对此不进行具体限定。图6所示的分布式天线系统中还包括耦合器,用于使信号的发射功率能够尽量平均分配到每个天线单元,使每个天线单元的发射功率基本相同。
图7是本发明实施例结合图6所示的定位系统提供的一种定位方法的流程图,涉及交互主体为网络设备、指定数目的天线单元和终端设备。参见图7,本发明实施例提供的方法流程包括:
701、网络设备生成参考信号,并将参考信号发送至指定数目的天线单元。
在本发明实施例中,网络设备与指定数目的天线单元相连接,构成一个分布式天线系统。其中,网络设备指代分布式天线系统中用于生成参考信号、处理参考信号,并具有对终端设备进行定位功能的物理或逻辑实体,本发明实施例对网络设备的具体形态不进行限定。网络设备在生成参考信号后,将参考信号发送至指定数目的天线单元,此时网络设备并未对参考信号进行处理,指定数目的天线单元均接收到相同的参考信号。
702、对于指定数目的天线单元中的每个天线单元,当接收到参考信号后,对该参考信号以指定极化类型进行极化处理,得到指定参考信号,并将指定参考信号发送至终端设备。
在本发明实施例中,系统中不同天线单元的偏振模块指示了不同的极化类型,该极化类型可为水平极化、垂直极化、圆极化、椭圆极化或指定角度的极化等,本发明实施例对此不进行具体限定。对于每个天线单元,当接收到参考信号后,通过偏振模块,对该指定信号以指定极化类型进行极化处理,得到指定参考信号,并将该指定参考信号发送至终端设备。指定数目的天线单元分别对参考信号进行极化处理后,得到极化类型不同的指定参考信号。
例如,假如系统中有3个天线单元A1、A2和A3,天线单元A1中的偏振模块P1对应的极化类型为水平极化,天线单元A2中的偏振模块P2对应的极 化类型为圆极化,天线单元A3中的偏振模块P3对应的极化类型为垂直极化。当天线单元A1接收到参考信号后,通过偏振模块P1对参考信号进行水平极化,将具有水平极化的参考信号发送至终端设备;当天线单元A2接收到参考信号后,通过偏振模块P2对参考信号进行圆极化,将具有圆极化的参考信号发送至终端设备;当天线单元A3接收到参考信号后,通过偏振模块P3对参考信号进行垂直极化,将具有垂直极化的参考信号发送至终端设备。至此,不同的天线单元向终端设备发送具有不同极化类型的参考信号,使得终端设备可根据不同的极化类型判断与接收到的参考信号对应的天线单元,具体过程详见下述步骤703。
需要说明的是,本发明实施例仅以3个天线单元为例进行解释说明,对实际应用中天线单元的具体数目不进行限定。
703、终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的极化类型,并根据极化类型接收至少两个参考信号。。
在本发明实施例中,对终端设备进行定位的过程可通过终端设备侧发起,也可由网络设备侧发起,本发明实施例对此不进行具体限定。下面以终端设备侧发起定位为例进行解释说明,网络设备接收到终端设备发送的定位请求后,向终端设备发送定位能力请求信令;终端设备收到信令后,回复相应的定位能力信息,包括可利用的硬件资源、定位解算能力、信号质量等。之后,终端设备向网络设备发送辅助数据请求,网络设备收到辅助数据请求后,返回配置的辅助数据,该辅助数据中至少包括至少两个天线单元的标识和该至少两个天线单元中每个天线单元对应的参考信号的极化类型。终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及该至少两个天线单元中每个天线单元对应的参考信号的极化类型,并根据极化类型接收至少两个参考信号。结合上述步骤702中的例子,辅助数据中每个天线单元的标识以及每个天线单元对应的参考信号的极化类型之间的对应关系可如表1所示:
表1
天线单元的标识 参考信号的极化类型
A1 P1
A2 P2
A3 P3
当终端设备接收到极化类型为P1的参考信号后,可根据表1所示的对应关系获取到与P1对应的天线单元的标识A1。同样,可获取到与极化类型为P2的参考信号对应的天线单元的标识A2,与极化类型为P3的参考信号对应的天线单元的标识为A3。
需要说明的是,网络设备向终端设备发送的辅助数据中,还可包括参考信号接收时间窗,使得终端设备在接收到该参考信号时间窗后,仅根据极化类型接收该参考信号时间窗内的参考信息号,这样可以减少终端设备的电量消耗。
704、终端设备通过测量该至少两个参考信号获取定位信息,并将该定位信息以及该定位信息相应的天线单元的标识信息发送给网络设备。
本发明实施例中,该步骤与上述步骤304中终端设备通过测量该至少两个参考信号获取定位信息,并将该定位信息以及该定位信息相应的天线单元的标识信息发送给网络设备的过程相同,在此不再赘述。
705、网络设备根据接收到的定位信息以及该定位信息相应的天线单元的标识信息,对终端设备进行定位。
在本发明实施例中,该步骤与上述步骤305中网络设备根据接收到的定位数据对终端设备进行定位的过程相同,在此不再赘述。
本发明实施例提供的方法,网络设备将生成的参考信号发送至指定数目的天线单元;指定数目的天线单元中每个天线单元在接收到参考信号后,对该参考信号以指定极化类型进行极化处理,得到指定参考信号,并将指定参考信号发送至终端设备;终端设备根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及至少两个天线单元中每个天线单元对应的参考信号的极化类型;根据属性信息接收至少两个参考信号;通过测量至少两个参考信号获取定位信息;将定位信息以及与定位信息相应的天线单元的标识信息发送给网络设备。由于不同天线单元可以不同的极化类型对参考信号进行极化,使得终端设备能够根据极化类型识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
需要说明的是,上述各个实施例可单独实施也可结合实施,本发明实施例对此不进行具体限定。
图8是本发明实施例提供的一种终端设备的结构示意图,参见图8,包括:接收机801、发射机802、处理器803和存储器804,接收机801、发射机802 和存储器804分别与处理器803连接,处理器803被配置为:根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据属性信息接收至少两个参考信号,其中,至少两个参考信号分别由至少两个天线单元中相应的天线单元发送;通过测量至少两个参考信号获取定位信息;将定位信息以及与定位信息相应的天线单元的标识信息发送给网络设备。
可选地,定位信息包括信号到达时间差,处理器803被配置为:获取至少两个参考信号中每两个天线单元所发送的参考信号的信号到达时间差。由于终端设备能够区分发送每个参考信号的天线单元,因此可将观察信号到达时间差的定位方法应用到分布式定位系统,实现室内定位。
可选地,处理器803被配置为:接收网络设备发送的辅助数据。由可根据辅助数据接收区分天线单元发送的参考信号,因此可实现室内定位。
本发明实施例提供的终端设备,据网络设备配置的辅助数据,获取至少两个天线单元的标识以及至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据属性信息接收至少两个参考信号,其中,至少两个参考信号分别由至少两个天线单元中相应的天线单元发送;通过测量至少两个参考信号获取定位信息;将定位信息以及与定位信息相应的天线单元的标识信息发送给网络设备。由于终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
图9是本发明实施例提供的一种定位信息发送装置的框图,参见图9,包括:获取模块901,接收模块902,测量模块903和发送模块904。
其中,获取模块901与接收模块902连接,用于根据网络设备配置的辅助数据获取至少两个天线单元的标识以及至少两个天线单元中每个天线单元对应的参考信号的属性信息;接收模块902与测量模块903连接,用于根据属性信息接收至少两个参考信号,其中,至少两个参考信号分别由至少两个天线单元中相应的天线单元发送;测量模块903与发送模块904连接,用于通过测量至少两个参考信号获取定位信息;发送模块904,用于将定位信息以及与定位信息相应的天线单元的标识信息发送给网络设备。
可选地,定位信息包括信号到达时间差,测量模块903,用于获取至少两个参考信号中每两个天线单元所发送的参考信号的信号到达时间差。由于终端 设备能够区分发送每个参考信号的天线单元,因此可将观察信号到达时间差的定位方法应用到分布式定位系统,实现室内定位。
可选地,接收模块902,还用于接收网络设备发送的辅助数据。由可根据辅助数据接收区分天线单元发送的参考信号,因此可实现室内定位。
本发明实施例提供的装置,据网络设备配置的辅助数据,获取至少两个天线单元的标识以及至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据属性信息接收至少两个参考信号,其中,至少两个参考信号分别由至少两个天线单元中相应的天线单元发送;通过测量至少两个参考信号获取定位信息;将定位信息以及与定位信息相应的天线单元的标识信息发送给网络设备。由于终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
图10是本发明实施例提供的一种网络设备的结构示意图,参见图10,包括:接收器1001、发射器1002、存储器1003和处理器1004,该接收器1001、该发射器1002和该存储器1003分别与该处理器1004连接,该处理器1004被配置为:生成指定数目的参考信号,每个参考信号具有不同属性信息;该网络设备还包括变频模块1005和本振模块1006,该本振模块与该变频模块连接,该变频模块与发射机相连;该变频模块用于根据该本振模块产生的不同的本振频率,将生成的指定数目的参考信号分别变频到不同载频上,并通过发射机发送至指定数目的天线单元。
本发明实施例提供的网络设备,生成指定数目的参考信号,每个参考信号具有不同标识信息;将指定数目的参考信号分别变频到不同载频上发送至指定数目的天线单元,由指定数目的天线单元中每个天线单元获取携带在与自身对应载频上的参考信号。由于网络设备采用频域分离的方式将具有不同标识信息的参考信号分配至不同的天线单元,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
图11是本发明实施例提供的一种网络设备的结构示意图,参见图11,包括:接收器1101、发射器1102、存储器1103和处理器1104,该接收器1101、该发射器1102和该存储器1103分别与该处理器1104连接,该处理器1104被 配置为:获取指定数目的扰码,并生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到;该网络设备还包括加扰模块1105和扰码生成模块1106,该加扰模块与该扰码生成模块连接,该加扰模块与发射机相连;该扰码生成模块用于生成指定数目的扰码;该加扰模块用于生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到;通过发射机将该指定数目的参考信号发送至指定数目的天线单元。
本发明实施例提供的网络设备,获取指定数目的扰码;生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到;将指定数目的参考信号送至指定数目的天线单元,由指定数目的天线单元中每个天线单元获取与自身扰码对应的参考信号。由于网络设备采用码域分离的方式将具有不同标识信息的参考信号分配至不同的天线单元,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
在另一实施例中,本发明实施例还提供了一种定位系统,该系统包括:网络设备、多个天线单元;该网络设备用于生成具有不同标识信息的多个参考信号,将该多个参考信号分别变频到不同载频上发送至该多个天线单元,该多个参考信号为不同定位参考信号;该多个天线单元中的每个天线单元用于在接收到网络设备发送的多个参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,并将该指定参考信号发送至终端设备。
可选地,每个天线单元还用于在得到指定参考信号后,对指定参考信号以指定极化类型进行极化处理;将极化后的指定参考信号发送至终端设备。由于不同的天线单元可将参考信号以不同的极化类型进行极化,因此终端设备可根据参考信号的极化类型识别发送该参考信号的天线单元,从而提高定位精度。
本发明实施例提供的系统,网络设备在生成指定数目的参考信号后,将指定数目的参考信号分别变频到不同载频上发送至指定数目的天线单元;指定数目的天线单元中每个天线单元在接收到指定数目的参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,并将指定参考信号发送至终端设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
在另一实施例中,本发明实施例还提供了一种定位系统,该系统包括:网络设备、多个天线单元;该网络设备用于获取指定数目的扰码,并生成多个参考信号,每个参考信号由不同的扰码加扰得到;将该多个参考信号发送至该多个天线单元;该多个天线单元中的每个天线单元用于在接收到多个参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,并将该指定参考信号发送至终端设备。
可选地,每个天线单元还用于在得到指定参考信号后,对指定参考信号以指定极化类型进行极化处理;将极化后的指定参考信号发送至终端设备。由于不同的天线单元可将参考信号以不同的极化类型进行极化,因此终端设备可根据参考信号的极化类型识别发送该参考信号的天线单元,从而提高定位精度。
本发明实施例提供的系统,网络设备根据指定数目的扰码生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到;之后将指定数目的参考信号发送至指定数目的天线单元;指定数目的天线单元中每个天线单元在接收到指定数目的参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,并将指定参考信号发送至终端设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
在另一实施例中,本发明实施例还提供了一种定位系统,该系统包括:网络设备、多个天线单元;该网络设备用于生成参考信号,并将该参考信号发送至该多个天线单元;该多个天线单元中的每个天线单元用于在接收到该参考信号后,对该参考信号以指定极化类型进行极化处理,得到极化类型不同的多个参考信号,并将该多个参考信号发送至终端设备。
本发明实施例提供的系统,网络设备将生成的参考信号发送至指定数目的天线单元;指定数目的天线单元中每个天线单元在接收到参考信号后,对该参考信号以指定极化类型进行极化处理,得到指定参考信号,并将指定参考信号发送至终端设备。由于不同天线单元可以不同的极化类型对参考信号进行极化,使得终端设备能够根据极化类型识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定 位精度。
在另一实施例中,本发明实施例还提供了一种天线单元,如图2所示的天线单元,该天线单元包括分路器、混频模块和天线;
该混频模块用于产生指定本振频率,并在通过分路器接收到指定数目的参考信号后,根据该指定本振频率,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号;通过该天线将该指定参考信号发送至终端设备。
本发明实施例提供的天线单元,当接收到指定数目的参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号。将指定参考信号发送至终端设备。由于天线单元可获取与自身对应载频的参考信号,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
在另一实施例中,本发明实施例还提供了一种天线单元,如图4所示的天线单元,该天线单元包括分路器、解扰模块和天线;该解扰模块用于生成指定扰码,并在接收到经由分路器传输的指定数目的参考信号后,根据该指定扰码,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号;通过该天线将该指定参考信号发送至终端设备。
本发明实施例提供的天线单元,解扰模块用于生成指定扰码,并在接收到经由分路器传输的指定数目的参考信号后,根据该指定扰码,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号;通过该天线将该指定参考信号发送至终端设备。由于不同天线单元获取到的参考信号不同,使得终端设备能够识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定位,且提高了室内定位精度。
在另一实施例中,本发明实施例还提供了一种天线单元,如图6所示的天线单元,该天线单元包括偏振模块和天线;该偏振模块用于当接收到参考信号后,对该参考信号以指定极化类型进行极化处理,得到指定参考信号;通过该天线将该指定参考信号发送至终端设备。由于不同天线单元能以不同的极化类型对参考信号进行极化,使得终端设备能够根据极化类型识别接收到的参考信号来自哪个天线单元,因此改进后的分布式天线系统可实现对终端设备的定 位,且提高了室内定位精度。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种终端设备,其特征在于,所述终端设备包括接收机、发射机、处理器和存储器,所述接收机、所述发射机和所述存储器分别与所述处理器连接,所述处理器被配置为:
    根据网络设备配置的辅助数据,获取至少两个天线单元的标识以及所述至少两个天线单元中每个天线单元对应的参考信号的属性信息;根据所述属性信息接收至少两个参考信号,其中,所述至少两个参考信号分别由所述至少两个天线单元中相应的天线单元发送;通过测量所述至少两个参考信号获取定位信息;将所述定位信息以及与所述定位信息相应的天线单元的标识信息发送给所述网络设备。
  2. 根据权利要求1所述的终端设备,其特征在于,所述定位信息包括信号到达时间差,所述处理器被配置为:获取所述至少两个参考信号中每两个天线单元所发送的参考信号的信号到达时间差。
  3. 根据权利要求1所述的终端设备,其特征在于,所述处理器被配置为:接收网络设备发送的所述辅助数据。
  4. 一种网络设备,其特征在于,所述网络设备包括接收机、发射机、处理器和存储器,所述接收机、所述发射机和所述存储器分别与所述处理器连接,所述处理器被配置为:生成指定数目的参考信号,每个参考信号的属性信息不同;
    所述网络设备还包括变频模块和本振模块,所述本振模块与所述变频模块连接,所述变频模块与发射机相连;
    所述变频模块用于根据所述本振模块产生的不同的本振频率,将生成的指定数目的参考信号分别变频到不同载频上,并通过发射机发送至指定数目的天线单元。
  5. 一种网络设备,其特征在于,所述网络设备包括接收机、发射机、处理器和存储器,所述接收机、所述发射机和所述存储器分别与所述处理器连接, 所述处理器被配置为:获取指定数目的扰码,并生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到,每个参考信号的属性信息不同;
    所述网络设备还包括加扰模块和扰码生成模块,所述加扰模块与所述扰码生成模块连接,所述加扰模块与发射机相连;
    所述扰码生成模块用于生成指定数目的扰码;
    所述加扰模块用于生成指定数目的参考信号,每个参考信号由不同的扰码加扰得到;通过发射机将所述指定数目的参考信号发送至指定数目的天线单元。
  6. 一种定位系统,其特征在于,所述系统包括:网络设备、多个天线单元,
    所述网络设备用于生成多个参考信号,将所述多个参考信号分别变频到不同载频上发送至所述多个天线单元,每个参考信号的属性信息不同;
    所述多个天线单元中的每个天线单元用于在接收到网络设备发送的多个参考信号后,对携带在与自身对应载频上的参考信号进行混频处理,得到指定参考信号,并将所述指定参考信号发送至终端设备。
  7. 根据权利要求6所述的系统,其特征在于,所述每个天线单元还用于在得到所述指定参考信号后,对所述指定参考信号以指定极化类型进行极化处理;将极化后的指定参考信号发送至所述终端设备。
  8. 一种定位系统,其特征在于,所述系统包括:网络设备、多个天线单元;
    所述网络设备用于获取指定数目的扰码,并生成多个参考信号,每个参考信号由不同的扰码加扰得到,每个参考信号的属性信息不同;将所述多个参考信号发送至所述多个天线单元;
    所述多个天线单元中的每个天线单元用于在接收到多个参考信号后,对与自身扰码对应的参考信号进行解扰处理,得到指定参考信号,并将所述指定参考信号发送至所述终端设备。
  9. 根据权利要求8所述的系统,其特征在于,所述每个天线单元还用于在得到所述指定参考信号后,对所述指定参考信号以指定极化类型进行极化处理;将极化后的所述指定参考信号发送至所述终端设备。
  10. 一种定位系统,其特征在于,所述系统包括:网络设备、多个天线单元;
    所述网络设备用于生成参考信号,并将所述参考信号发送至所述多个天线单元;
    所述多个天线单元中的每个天线单元用于在接收到所述参考信号后,对所述参考信号以指定极化类型进行极化处理,得到极化类型不同的多个参考信号,并将所述多个参考信号发送至所述终端设备。
PCT/CN2015/100320 2015-12-31 2015-12-31 终端设备及定位系统 WO2017113397A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP15912021.1A EP3389320A4 (en) 2015-12-31 2015-12-31 Terminal device and positioning system
CN201580085581.6A CN108541393A (zh) 2015-12-31 2015-12-31 终端设备及定位系统
PCT/CN2015/100320 WO2017113397A1 (zh) 2015-12-31 2015-12-31 终端设备及定位系统
JP2018534606A JP2019505781A (ja) 2015-12-31 2015-12-31 端末装置および測位システム
US16/022,495 US10684351B2 (en) 2015-12-31 2018-06-28 Terminal device and positioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/100320 WO2017113397A1 (zh) 2015-12-31 2015-12-31 终端设备及定位系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/022,495 Continuation US10684351B2 (en) 2015-12-31 2018-06-28 Terminal device and positioning system

Publications (1)

Publication Number Publication Date
WO2017113397A1 true WO2017113397A1 (zh) 2017-07-06

Family

ID=59224426

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/100320 WO2017113397A1 (zh) 2015-12-31 2015-12-31 终端设备及定位系统

Country Status (5)

Country Link
US (1) US10684351B2 (zh)
EP (1) EP3389320A4 (zh)
JP (1) JP2019505781A (zh)
CN (1) CN108541393A (zh)
WO (1) WO2017113397A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017194675A1 (en) 2016-05-13 2017-11-16 Telefonaktiebolaget Lm Ericsson (Publ) Methods, user equipment, radio transmitter and network node for managing positioning reference signals
CN114765853A (zh) * 2021-01-15 2022-07-19 大唐移动通信设备有限公司 信息指示方法、装置、终端设备、网络设备及存储介质
EP4309385A1 (en) * 2021-04-14 2024-01-24 Huawei Technologies Co., Ltd. User device and method for sidelink positioning

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1491064A (zh) * 2002-10-15 2004-04-21 ��Ϊ�������޹�˾ 一种移动台定位方法及其直放站
CN102577486A (zh) * 2009-10-02 2012-07-11 夏普株式会社 无线通信系统、通信装置、无线通信方法及终端装置
CN102736062A (zh) * 2012-06-28 2012-10-17 北京邮电大学 室内定位方法和系统、以及终端、室内合路器、室内天线
EP2775744A1 (en) * 2013-03-06 2014-09-10 HERE Global B.V. Using information on neighbor cells of other network types and/or other operators for mobile terminal positioning

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230018B1 (en) * 1998-05-14 2001-05-08 Nortel Networks Limited Devices and processing in a mobile radio communication network having calibration terminals
US20040114548A1 (en) * 2001-01-23 2004-06-17 Jyoti Prasad Polarization division multiplex access system
US7260408B2 (en) * 2004-02-20 2007-08-21 Airespace, Inc. Wireless node location mechanism using antenna pattern diversity to enhance accuracy of location estimates
US7567822B2 (en) * 2005-10-11 2009-07-28 Cisco Technology, Inc. Automated configuration of RF WLANs via selected sensors
JP4684249B2 (ja) 2007-02-06 2011-05-18 中国電力株式会社 自律移動支援システム及びその制御方法
JP2010011068A (ja) 2008-06-26 2010-01-14 Toshiba Corp 通信端末、通信端末を使用したサービスシステム、及び通信端末を使用したサービス提供方法
US8259692B2 (en) 2008-07-11 2012-09-04 Nokia Corporation Method providing positioning and navigation inside large buildings
US8180368B2 (en) * 2008-11-11 2012-05-15 Trueposition, Inc. Femto-cell location by direct methods
US8600398B2 (en) 2009-11-03 2013-12-03 Telefonaktiebolaget Lm Ericsson (Publ) Method, apparatus and system for defining positioning configuration in a wireless network
US8315647B2 (en) * 2010-12-28 2012-11-20 Trueposition, Inc. Time and power based wireless location detection system
KR20120082711A (ko) * 2011-01-14 2012-07-24 주식회사 팬택 이종 통신 시스템에서의 위치 참조 신호 송수신 장치 및 방법
KR20130123430A (ko) 2011-03-07 2013-11-12 인텔 코포레이션 그룹핑된 기기간 통신
CN102958154B (zh) * 2011-08-24 2015-05-27 华为技术有限公司 用户设备的定位方法及装置
US9651653B2 (en) * 2012-12-24 2017-05-16 Qualcomm Incorporated Positioning reference signal (PRS) generation for multiple transmit antenna systems
EP3275254B1 (en) * 2015-03-27 2019-02-13 PCMS Holdings, Inc. System and method for indoor localization using beacons
US10390249B2 (en) * 2015-04-03 2019-08-20 Lg Electronics Inc. Method for receiving or transmitting pilot signal in wireless communication system, and apparatus therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1491064A (zh) * 2002-10-15 2004-04-21 ��Ϊ�������޹�˾ 一种移动台定位方法及其直放站
CN102577486A (zh) * 2009-10-02 2012-07-11 夏普株式会社 无线通信系统、通信装置、无线通信方法及终端装置
CN102736062A (zh) * 2012-06-28 2012-10-17 北京邮电大学 室内定位方法和系统、以及终端、室内合路器、室内天线
EP2775744A1 (en) * 2013-03-06 2014-09-10 HERE Global B.V. Using information on neighbor cells of other network types and/or other operators for mobile terminal positioning

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3389320A4 *

Also Published As

Publication number Publication date
JP2019505781A (ja) 2019-02-28
US10684351B2 (en) 2020-06-16
CN108541393A (zh) 2018-09-14
EP3389320A4 (en) 2018-12-12
US20180306896A1 (en) 2018-10-25
EP3389320A1 (en) 2018-10-17

Similar Documents

Publication Publication Date Title
CN110012536B (zh) 用于终端设备的定位方法、装置及系统
US9476965B2 (en) Differentiated station location
CN102905364B (zh) 基于wlan的定位系统
EP2727392B1 (en) Distributed positioning mechanism for wireless communication devices
CN107708065B (zh) 一种定位系统、方法和装置
JP2005229616A (ja) シグナル強度測定値を用いた安価な無線端末の位置の推定
WO2012042303A1 (en) Positioning
US10684351B2 (en) Terminal device and positioning system
WO2019029555A1 (zh) 用于定位的方法和装置
WO2023168716A1 (zh) 一种载波相位定位的方法及其装置
US9781566B1 (en) Apparatus, system and method of estimating a distance between a first station and a second station
CN108141698A (zh) 一种楼层定位方法、设备及系统
WO2023184457A1 (zh) 生效时间确定方法及装置
WO2020006123A1 (en) Method and apparatus for determining a position of a terminal
US10237369B2 (en) Opportunistic backhauling of data for fine time measurement (FTM) responder systems
WO2023004547A1 (zh) 非地面网络中上报终端设备位置信息的方法和装置
CN107645771A (zh) 一种定位方法及装置
WO2023216034A1 (zh) 一种校验位置信息的方法及其装置
US20220196781A1 (en) Methods and apparatuses for the generation of dynamic reference points
Dolińska et al. Location ability of 802.11 access point
WO2023202493A1 (zh) 用于无线通信的电子设备和方法、计算机可读存储介质
WO2023168719A1 (zh) 一种载波相位定位的方法及其装置
WO2023206299A1 (zh) 一种感知业务的执行方法及其装置
WO2023206300A1 (zh) 一种感知业务执行方法及其装置
WO2023168720A1 (zh) 测距方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15912021

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018534606

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2015912021

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2015912021

Country of ref document: EP

Effective date: 20180711