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WO2020037660A1 - 数据传输方法和装置 - Google Patents

数据传输方法和装置 Download PDF

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Publication number
WO2020037660A1
WO2020037660A1 PCT/CN2018/102284 CN2018102284W WO2020037660A1 WO 2020037660 A1 WO2020037660 A1 WO 2020037660A1 CN 2018102284 W CN2018102284 W CN 2018102284W WO 2020037660 A1 WO2020037660 A1 WO 2020037660A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
message
downlink
resources
configuration information
Prior art date
Application number
PCT/CN2018/102284
Other languages
English (en)
French (fr)
Inventor
叶茂荣
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 CN201880096663.4A priority Critical patent/CN112586024A/zh
Priority to EP18930599.8A priority patent/EP3833082A4/en
Priority to PCT/CN2018/102284 priority patent/WO2020037660A1/zh
Publication of WO2020037660A1 publication Critical patent/WO2020037660A1/zh
Priority to US17/181,912 priority patent/US20210176738A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0018—Transmission from mobile station to base station
    • G01S5/0036—Transmission from mobile station to base station of measured values, i.e. measurement on mobile and position calculation on base station
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-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
    • G01S5/0205—Details
    • G01S5/0236—Assistance data, e.g. base station almanac
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-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
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a data transmission method and device.
  • the downlink arrival time observation difference (observed time difference identifier of OTDOA) is used to perform terminal positioning by observing the arrival time difference.
  • the terminal can monitor the candidate cell and the reference cell, measure the position reference signal (PRS) arrival time from each cell, and calculate the downlink arrival time between the PRS signal sent by the candidate cell and the PRS signal sent by the reference cell Observe the difference.
  • the number of candidate cells may be multiple, and correspondingly, multiple downlink arrival time observation differences may be obtained. Through these multiple downlink arrival time observation differences, the location of the terminal can be determined.
  • a cell sends an NB-IoT position reference signal (NPRS) to a terminal.
  • NPRS can be transmitted in the downlink resource block, occupying 1/6 of one subframe in the frequency domain.
  • the NPRS transmission mode can be implemented in two ways. The first mode is to set the subframe for transmitting NPRS to an invalid subframe, and it is no longer used for other downlink scheduling. The second mode is that the subframe in which the NPRS is located is still used for downlink scheduling, and a puncturing process is performed for a resource element (RE) occupied by the NPRS during the scheduling process.
  • RE resource element
  • the terminal demodulates a signal on a resource containing NPRS, it cannot obtain the puncturing position of NPRS on the downlink resource.
  • NPRS interferes with the downlink data demodulation, thereby reducing the downlink demodulation of the terminal.
  • the success rate decreases the downstream rate.
  • the present application discloses a data transmission method and device, which can reduce the interference generated by PRS on demodulation of downlink data, thereby improving the downlink rate.
  • an embodiment of the present application provides a data transmission method.
  • the method includes: a terminal receiving a first message sent by a network device, the first message carrying first configuration information, and the first configuration information indicating a positioning reference signal A resource location where a PRS is configured on a downlink resource; resources other than the resource occupied by the PRS on the downlink resource are used to carry data to be demodulated; and the terminal performs Tune data for demodulation, the terminal skips the resources occupied by the PRS when demodulating data carried on the downlink resources.
  • the terminal can remove NPRS during data demodulation, reduce NPRS interference during data demodulation, and perform data demodulation more accurately, thereby increasing the downlink rate.
  • the first configuration information may include configuration information of NPRS_ID and Part B.
  • NPRS_ID can represent the distribution position of NPRS in the frequency domain of downlink resources.
  • the configuration information of Part B may include periodic information such as the distribution of NPRS in downlink resources, and is used to characterize the distribution position of NPRS in the time domain of downlink resources.
  • the terminal may learn the RE position where the NPRS is configured on the downlink resource according to the first configuration information.
  • the first message includes one or more of the following: a system message SIB2 or a system message SIB22.
  • the first configuration information may be added to the late non-critical extension (lateNonCriticalExtension) field of the extension field of the SIB2-NB. Since the lateNonCriticalExtension field can be used to carry common channel related information, carrying the first configuration information in this field conforms to the configuration rule and facilitates backward compatibility.
  • lateNonCriticalExtension can be used to carry common channel related information
  • the first configuration information may also be added to the field of the downlink universal carrier configuration information (DL-CarrierConfigCommon-NB-r14) in the SIB22-NB.
  • DL-CarrierConfigCommon-NB-r14 downlink universal carrier configuration information
  • the network device may send the first message periodically.
  • the first message includes the system message SIB2; if the downlink resource includes the For a PRB of a non-anchor carrier in a multi-carrier, the first message includes the system message SIB22.
  • each of the multiple carriers corresponds to its own PRB, that is, there are multiple PRBs.
  • the NPRS may be carried on any one of the plurality of PRBs, or may be carried on any one of the plurality of PRBs.
  • SIB2 can be SIB2-NB and SIB22 can be SIB22-NB.
  • the first message is sent by the network device to the terminal when the network device is configured in a second mode, and the downlink resource is divided by the PRS occupied by the downlink resource in the second mode. Resources other than resources are used to carry data to be demodulated.
  • an embodiment of the present application provides a data transmission method.
  • the method includes: a network device sends a first message to a terminal, the first message carries first configuration information, and the first configuration information indicates a positioning reference signal PRS A resource location configured on the downlink resource; resources other than the resource occupied by the PRS on the downlink resource are used to carry data to be demodulated; and the first configuration information is used by the terminal according to the first The configuration information demodulates the data to be demodulated; the terminal skips the resources occupied by the PRS when demodulating the data carried on the downlink resources.
  • the terminal can remove NPRS during data demodulation, reduce NPRS interference during data demodulation, and perform data demodulation more accurately, thereby increasing the downlink rate.
  • the first configuration information may include configuration information of NPRS_ID and Part B.
  • NPRS_ID can represent the distribution position of NPRS in the frequency domain of downlink resources.
  • the configuration information of Part B may include periodic information such as the distribution of NPRS in downlink resources, and is used to characterize the distribution position of NPRS in the time domain of downlink resources.
  • the terminal may learn the RE position where the NPRS is configured on the downlink resource according to the first configuration information.
  • the first message is one or more of the following: a system message SIB2 or a system message SIB22.
  • the first configuration information may be added to the late non-critical extension (lateNonCriticalExtension) field of the extension field of the SIB2-NB. Since the lateNonCriticalExtension field can be used to carry common channel related information, carrying the first configuration information in this field conforms to the configuration rule and facilitates backward compatibility.
  • lateNonCriticalExtension can be used to carry common channel related information
  • the first configuration information may also be added to the field of the downlink universal carrier configuration information (DL-CarrierConfigCommon-NB-r14) in the SIB22-NB.
  • DL-CarrierConfigCommon-NB-r14 downlink universal carrier configuration information
  • the network device may send the first message periodically.
  • the first message includes the system message SIB2; if the downlink resource includes the For a PRB of a non-anchor carrier in a multi-carrier, the first message includes the system message SIB22.
  • each of the multiple carriers corresponds to its own PRB, that is, there are multiple PRBs.
  • the NPRS may be carried on any one of the plurality of PRBs, or may be carried on any one of the plurality of PRBs.
  • the sending, by the network device, the first message to the terminal includes: when configured in the second mode, the network device sends the first message to the terminal, and the downlink in the second mode Resources other than the resources occupied by the PRS are used to carry data to be demodulated.
  • SIB2 can be SIB2-NB and SIB22 can be SIB22-NB.
  • an embodiment of the present application provides a terminal, including a processor and a memory, where the memory is configured to store program instructions, and the processor is configured to call the program instructions to execute the first aspect or any of the first aspect The methods provided by the examples.
  • an embodiment of the present application provides a network device, including a processor and a memory, where the memory is configured to store program instructions, and the processor is configured to call the program instructions to execute the second aspect or any one of the second aspect Methods provided by possible embodiments.
  • an embodiment of the present application provides a terminal, and the terminal includes a module or a unit for executing the data transmission method provided by the first aspect or any possible embodiment of the first aspect.
  • an embodiment of the present application provides a network device, and the network device includes a module or a unit for executing the data transmission method provided by the second aspect or any possible embodiment of the second aspect.
  • an embodiment of the present invention provides a chip system.
  • the chip system includes at least one processor, a memory, and an interface circuit.
  • the memory, the interface circuit, and the at least one processor are interconnected through a line.
  • the at least one memory stores There are program instructions; when the program instructions are executed by the processor, the method described in the first aspect or any possible embodiment of the first aspect is implemented.
  • an embodiment of the present invention provides a chip system.
  • the chip system includes at least one processor, a memory, and an interface circuit.
  • the memory, the interface circuit, and the at least one processor are interconnected through lines.
  • the at least one memory stores There are program instructions; when the program instructions are executed by the processor, the method described in the second aspect or any one of the possible embodiments of the second aspect is implemented.
  • an embodiment of the present invention provides a computer-readable storage medium.
  • the computer-readable storage medium stores program instructions.
  • the program instructions are executed by a processor, the first aspect or any of the first aspect may be implemented.
  • the example describes the method.
  • an embodiment of the present invention provides a computer-readable storage medium.
  • the computer-readable storage medium stores program instructions.
  • the program instructions are executed by a processor, the second aspect or any of the second aspect may be implemented.
  • the example describes the method.
  • an embodiment of the present invention provides a computer program product.
  • the computer program product runs on a processor, the first aspect or the method described in any possible embodiment of the first aspect is implemented.
  • an embodiment of the present invention provides a computer program product.
  • the computer program product runs on a processor, the second aspect or the method described in any possible embodiment of the second aspect is implemented.
  • the terminal when the terminal performs data demodulation on the downlink resource, the terminal may remove the NPRS according to the learned locations of the REs distributed on the downlink resource by the NPRS. That is, the terminal performs puncturing processing on the NPRS during downlink decoding to remove the NPRS carried on the downlink resources, which can reduce the NPRS interference during data demodulation and perform data demodulation more accurately, thereby increasing the downlink rate.
  • FIG. 1 is a schematic diagram of an application scenario of terminal positioning provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a network system according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a terminal positioning method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a distribution situation of NPRS in downlink resources of NB-IoT according to an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal and a network device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of another terminal according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of an application scenario of terminal positioning provided by an embodiment of the present application.
  • the equipment involved in the application scenario of terminal positioning may include the terminal 10 and at least three network devices.
  • the embodiment of the present application is described by using three network devices as an example. It can be understood that in order to improve the positioning accuracy of the terminal 10, four or more network devices can also be used to implement the positioning of the terminal 10.
  • the specific positioning process It can be compared to the situation of three network devices, which will not be repeated here.
  • Realizing terminal positioning can include the following steps:
  • Step 1 The terminal 10 monitors the network device, and measures the time when the PRS from the network device arrives at the terminal 10, that is, the downlink arrival time, and the downlink arrival time is the time when the PRS from the network device arrives at the terminal 10.
  • the terminal 10 may measure a time when the PRS from the network device 20 arrives at the terminal 10, that is, a downlink arrival time t1. Similarly, the terminal 10 can measure the time t2 (downlink arrival time t2) of the PRS from the network device 30 to the terminal 10 and the time t3 (downlink arrival time t3) of the PRS from the network device 40 to the terminal 10.
  • Step 2 The terminal 10 calculates an observation difference t2-t1 between the downlink arrival time t1 and the downlink arrival time t2, and calculates an observation difference t3-t1 between the downlink arrival time t1 and the downlink arrival time t3.
  • the cell covered by the network device 20 may be a reference cell of the terminal 10, and the terminal 10 may calculate an observation difference between the downlink arrival time of the remaining two network devices and the downlink arrival time of the network device 20.
  • the reference cell may be a serving cell of the terminal 10
  • the cell covered by the network device 30 and the network device 40 may be a neighboring cell of the terminal 10.
  • Step 3 The evolved serving mobile location center (E-SMLC) determines the location of the terminal 10 according to the observed difference t2-t1 and t3-t1 of the downlink arrival time sent by the terminal 10.
  • E-SMLC evolved serving mobile location center
  • the coordinates of the terminal 10 are set to (x, y), and the coordinates may represent geographic location information of the terminal 10.
  • the coordinates of the network device 20, the network device 30, and the network device 40 are known, and are (x1, y1), (x2, y2), and (x3, y3) in this order.
  • the transmission speed of the PRS between the terminal 10 and the network device is the transmission speed of electromagnetic waves in the air, which is approximately the speed of light c.
  • the time when the network device 20 sends the PRS is T1
  • the time when the network device 30 sends the PRS is T2
  • the time when the network device 40 sends the PRS is T3. then:
  • i takes 1, 2, and 3 in order.
  • d1, d2, and d3 are the distances between the terminal 10 and the network device 20, the network device 30, and the network device 40 in this order.
  • determining the position (x, y) of the terminal 10 requires the above-mentioned two hyperbolic equations, and the geographic location information of the terminal 10 is determined by the intersection of the two curves.
  • the number of candidate cells is not limited to the above.
  • the terminal 10 may also measure the difference between the three or more network devices and the downlink arrival time of the network device 20. That is, the position of the terminal 10 is determined according to three or more curves.
  • the above-mentioned observation difference values t2-t1 and t3-t1 of the downlink arrival time can be referred to as OTDOA.
  • OTDOA relative timing difference
  • TDOA actual arrival time difference
  • the E-SMLC can determine the geographic location information of the terminal.
  • the geographic location information may include the latitude and longitude location information and geographic coordinates of the terminal 10, and may also include the terminal 10 Positioning auxiliary data, such as accuracy estimation.
  • the network system 100 may be an LTE communication system or an NB-IoT system.
  • the network system also supports other wireless access technologies defined by the 3GPP standards group.
  • the fifth-generation mobile communication system wireless access network 5-generation radio access network (5GRAN), next-generation RAN (next generation RAN, NGRAN), etc.
  • CN core network
  • 5GRAN fifth-generation mobile communication system wireless access network
  • 5GRAN next-generation RAN
  • NGRAN next generation RAN
  • CN core network
  • the system architecture shown in FIG. 2 can also be a new radio (NR) system, a machine-to-machine (M2M) system, and the like that will evolve in the future.
  • NR new radio
  • M2M machine-to-machine
  • the network system 100 includes a terminal 101, a base station (eNB) 102, a mobility management entity (MME) 103, an E-SMLC 104, and a gateway mobile location center (Gateway Mobile Location Center).
  • GMLC Gateway Mobile Location Center
  • the terminal 10 can communicate with the MME 103 through the base station 102, and can also communicate with the E-SMLC 104 through the base station 102, MME 103. among them:
  • the terminal 101 is mainly used for:
  • the message carrying OTDOA or TDOA can be used by the E-SMLC 104 to determine the location information of the terminal 101.
  • This positioning capability information is used by E-SMLC 104 to select a positioning method based on the positioning capability information and other information.
  • Other information may include the quality of service required by location-related applications (quality of service, QoS), E-SMLC 104 configuration positioning method, etc.
  • the terminal 101 may be the terminal 10 described in FIG. 1.
  • the downlink data may include control data, user data, and the like.
  • the terminal 101 may be a movable user equipment (user equipment, UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a user terminal, or a user agent.
  • the access terminal can be a cellular phone, a handheld device with a positioning function, a computing device or an in-vehicle device, a wearable device, a terminal in a 5G system, or a terminal in a future evolved public land mobile network (PLMN), etc. .
  • the terminal 101 may be a mobile phone, a tablet, a computer with a wireless transmitting and receiving function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, or an industrial control device.
  • wireless terminal in industrial control wireless terminal in self driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, transportation safety Wireless terminals in smart phones, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • eNB 102 is mainly used for:
  • the eNB 102 can also be used to complete positioning-related measurements and report the measurement results to the E-SMLC 104.
  • Communication with one or more terminals 101 may also be used to communicate with one or more base stations with partial terminal functions (such as communication between a macro base station and a micro base station, such as an access point).
  • partial terminal functions such as communication between a macro base station and a micro base station, such as an access point.
  • the eNB 102 can be a base transceiver station (BTS) in a time division synchronous code division multiple access (TD-SCDMA) system, or it can be an evolutionary base station (evolutional node) in an LTE system.
  • B eNB
  • eNB evolved base station
  • 5G 5th-generation
  • NR new radio
  • the eNB 102 may also be an access point (AP), a transmission node (TRP), a central unit (CU), or other network entities, and may include the functions of the above network entities.
  • AP access point
  • TRP transmission node
  • CU central unit
  • the eNB 102 may also have other names, which are not specifically limited in the embodiments of the present application.
  • MME 103 is mainly used for:
  • the LCS service request may be initiated by the terminal 101, or may be initiated by a location-related application via the GMLC 105 to the MME 103, or may be initiated by a network element in the PLMN that is serving the terminal 101.
  • the MME 103 requires the terminal 101 Initiate an LCS service request.
  • LTE positioning protocol attachment (LTE positioning protocol, LPPa) to realize positioning related interaction with eNB 102.
  • E-SMLC 104 Transparently transmit positioning-related messages between E-SMLC 104 and other entities, such as positioning-related messages between E-SMLC 104 and eNB 102, and positioning-related messages between E-SMLC 104 and terminal 101.
  • the MME 103 is used to support non-access stratum (NAS) signaling and management of its security, tracking area (TA) list, and public data network gateway (P- GW) and serving gateway (S-GW), MME selection during cross-MME handover, and GPRS service support node (SGSN) selection during handover to 2G / 3G access system , User authentication, roaming control, and bearer management, mobility management between core network nodes of different 3GPP access networks, and reachability management of the terminal 101 in the idle state (including control and execution of paging retransmission).
  • NAS non-access stratum
  • TA tracking area
  • P- GW public data network gateway
  • S-GW serving gateway
  • MME selection during cross-MME handover and GPRS service support node (SGSN) selection during handover to 2G / 3G access system
  • User authentication, roaming control, and bearer management mobility management between core network nodes of different 3GPP access networks, and reachability management of the terminal 101 in the idle state (including control
  • E-SMLC 104 is mainly used for:
  • E-SMLC 104 can be integrated in a radio network controller (RNC), or it can be physically implemented as an independent function module.
  • RNC radio network controller
  • SAS stand-alone SMLC
  • E-SMLC 104 is the main functional unit of positioning measurement and positioning calculation. After receiving the positioning request, E-SMLC 104 can select a suitable positioning method according to multiple factors, control terminal 101 and eNB 102 to measure the position information, and perform latitude and longitude calculation based on the selected positioning method and the obtained positioning information.
  • multiple factors may include one or more of the following: quality of service (QoS) required by location-related applications, positioning capability of the terminal 101, positioning function activation identification of the cell in which the terminal 101 is located, and LCS license, etc.
  • QoS quality of service
  • the E-SMLC 104 is also used to calculate positioning assistance data and send it to the terminal 101.
  • GMLC 105 is mainly used for:
  • GMLC 105 is a gateway for location-related applications to obtain the location information of terminal 101 and is connected to external LCS clients.
  • GMLC 105 can be included in a core network (CN) and can act as a server for LCS.
  • CN core network
  • the external LCS client (not shown in the figure) is a location-related application provided by a network operator or other third party, which is also referred to as a location-related application.
  • the external LCS client establishes a communication connection with the GMLC 105.
  • FIG. 3 is a schematic flowchart of a terminal positioning method according to an embodiment of the present application. As shown in FIG. 3, the terminal positioning method includes steps S101 to S111.
  • An LCS request is initiated to the MME 103.
  • step S101 may be initiated by the terminal 101 or GMLC 105, and may also be initiated by a network element in a PLMN that is serving the terminal 101, for example, MME 103. Therefore, step S101 may be specifically implemented as step S101a, S101b, or S101c, which are respectively introduced below.
  • the terminal 101 sends a terminal-originated location request (MO-LR) to the MME 103.
  • the request may be sent in the form of a NAS message, which is used to request a positioning service.
  • the NAS message may include information used to request the terminal 101's own location or auxiliary data used to request a certain positioning method, and the auxiliary data is used to request the terminal 101's own location.
  • the GMLC 105 sends a terminal termination location request (MT-LR) to the MME 103.
  • MT-LR terminal termination location request
  • This request is used by a location-related application to request positioning of the terminal 101.
  • the location-related application may be an external LCS client.
  • the positioning request may also be generated by a network element in the PLMN that is serving the terminal 101.
  • MME 103 sends an LCS request to E-SMLC 104.
  • the terminal 101 reports positioning capability information to the E-SMLC 104.
  • the positioning capability information of the terminal 101 may include indication information of whether the terminal 101 supports an OTDOA positioning method.
  • S104 and E-SMLC104 determine a positioning method.
  • E-SMLC 104 can choose a suitable positioning method based on multiple factors.
  • multiple factors may include one or more of the following: QoS required by location-related applications, positioning capability information of the terminal 101, positioning function activation identification of the cell in which the terminal 101 is located, and LCS license purchased by the network operator.
  • E-SMLC 104 initiates an OTDOA auxiliary data request to eNB 102.
  • OTDOA auxiliary data is used to assist with OTDOA measurements.
  • the OTDOA auxiliary data may include information of inter-frequency neighboring cells, and is used by the terminal 101 to measure inter-frequency PRS reception time.
  • the OTDOA auxiliary data may also include PRS configuration information of reference cells and candidate cells, frame timing information of eNB 102 and base stations of candidate cells, physical cell identifiers (PCI), and common communication interfaces of each cell of eNB 102 and candidate cells (general communication interface, GCI).
  • the PRS configuration information may include information indicating a resource location occupied by the PRS on downlink resources, such as pointer information for indicating a time domain location, and a PRS identifier for indicating frequency domain information.
  • the eNB 102 sends an OTDOA auxiliary data response to the E-SMLC 104.
  • the OTDOA auxiliary data response may include the above OTDOA auxiliary data.
  • the E-SMLC 104 sends OTDOA auxiliary data to the terminal 101.
  • the E-SMLC 104 initiates a positioning request to the terminal 101.
  • the positioning request may be initiated by the E-SMLC 104 to the terminal 101 through a Lightweight Presentation Protocol (LPP) message Request Location Information.
  • LPP Lightweight Presentation Protocol
  • the positioning request may be used to request the terminal 101 to perform PRS arrival time difference measurement.
  • the terminal 101 When receiving the positioning request, the terminal 101 starts the PRS arrival time difference measurement, and sends the measurement result to the E-SMLC 104.
  • the terminal 101 may perform measurement according to OTDOA auxiliary data.
  • the OTDOA auxiliary data includes information of an inter-frequency neighboring cell, and the terminal 101 may perform measurement of an inter-frequency PRS reception time.
  • the OTDOA auxiliary data further includes PRS configuration information, and the terminal 101 measures a time observation difference of a PRS signal on a downlink resource unit indicated by the PRS configuration information.
  • the measurement result may include the aforementioned OTDOA or TDOA, and the measurement result may be reported to the E-SMLC 104 through the LPP message Provide Location Information.
  • S110 and E-SMLC 104 locate the terminal 101 according to the measurement result, and send the positioning result to the MME 103.
  • the positioning result may include geographic location information of the terminal 10, identification information of successful or failed positioning, error information, and the like.
  • the initiator of the LCS request may be initiated by the terminal 101, GMLC 105, or MME 103, and the positioning result is sent by the MME 103 to the specific initiator of the LCS request.
  • step S101 is specifically implemented as S101a
  • the MME 103 transparently transmits the positioning result to the terminal 101.
  • the MME 103 can transparently transmit the positioning result to the network entity operated by the location-related application.
  • step S101 is specifically implemented as S101c
  • the MME 103 transparently transmits the positioning result to the network element that initiates the positioning request.
  • FIG. 4 is a schematic diagram of a distribution situation of NPRS in downlink resources of NB-IoT provided by an embodiment of the present application.
  • the RE occupied by NPRS occupies 1/6 of one subframe in the frequency domain.
  • the frequency domain offset of the RE occupied by NPRS is equal to NPRS-ID modulo 6, that is, NPRS-ID pair 6 is the remainder.
  • the NPRS-ID may be a physical cell ID (PCID), which is the physical ID of the cell.
  • the NPRS-ID may also be configured.
  • the RE position occupied by NPRS is determined by the frequency domain offset.
  • NPRS can be deployed on time-frequency resources in two ways. Each of them will be described below.
  • the first mode (Part A): The subframe used for transmitting NPRS no longer transmits other downlink data, that is, the subframe transmitting NPRS is set as an invalid subframe for other downlink data. This deployment method will cause a waste of downlink resources and increase the loss of downlink capacity.
  • Part B In addition to the REs occupied by NPRS, the subframes used to transmit NPRS are still used for downlink data transmission. Using this deployment method can save downlink resources and reduce the loss of downlink capacity. From the network equipment side, when deploying downlink data, it is necessary to avoid REs occupied by NPRS, that is, to perform punch processing on REs occupied by NPRS. For the terminal, the terminal can determine the RE position occupied by the NPRS according to the OTDOA auxiliary data when performing the OTDOA measurement, and then receive the NPRS for the OTDOA measurement. For a detailed description of performing OTDOA measurement, refer to the specific description of S109 in FIG. 3.
  • NPRS puncturing on downlink resources means that on this downlink resource, several REs are used to carry NPRS. Except for REs occupied by NPRS, this downlink resource is still used for downlink data transmission.
  • the part of the downlink resource except for the RE occupied by the NPRS may be occupied by a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).
  • the downlink resource may be one or more subframes.
  • the RE is used to carry NPRS, that is, the NPRS is configured to be transmitted on the RE to the terminal.
  • the embodiments of the present application provide a data transmission method and device, which can reduce the interference caused by NPRS to the demodulation of downlink data, thereby increasing the downlink rate.
  • the main inventive principle involved in the embodiments of the present application is: in the second mode, that is, when NPRS is occupied by puncturing on downlink resources, the network device can notify the terminal that NPRS is configured on the downlink resources by using a first message carrying first configuration information Resource location.
  • the NPRS is removed according to the first configuration information, that is, when the terminal demodulates the data carried on the downlink resource, the resource occupied by the PRS is skipped.
  • the terminal removes NPRS when performing data demodulation, which can reduce the interference of NPRS during data demodulation and perform data demodulation more accurately, thereby increasing the downlink rate.
  • an embodiment of the present application provides a data transmission method, which can increase a downlink rate.
  • FIG. 5 is a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • the network device may be a base station covering a terminal serving cell.
  • the data transmission method includes, but is not limited to, steps S201-S203.
  • the network device determines to use the second mode.
  • the network device sends a first message to the terminal.
  • the terminal When performing data demodulation on downlink resources, the terminal removes PRS according to the first configuration information and performs downlink demodulation.
  • the PRS is the NPRS in the NB-IoT system.
  • the network device can be configured to use the second mode when configuring the deployment mode of NPRS.
  • This embodiment of the present application uses the network system as the NB-IoT system and PRS as the NPRS as an example. It is understandable that the examples are only used to explain the embodiments of the present application and are not limited to the NB-IoT system. Be applicable.
  • the first configuration information and the first message are respectively introduced below.
  • the first configuration information indicates a resource position where NPRS is configured on the downlink resource.
  • the first configuration information may include the NPRS_ID and the configuration information of Part B.
  • NPRS_ID can represent the distribution position of NPRS in the frequency domain of downlink resources.
  • the configuration information of Part B may include periodic information such as the distribution of NPRS in downlink resources, and is used to characterize the distribution position of NPRS in the time domain of downlink resources.
  • the terminal may learn the RE position where the NPRS is configured on the downlink resource according to the first configuration information.
  • the first message carries first configuration information.
  • the first message may be a NB-IoT system message, that is, the first configuration information is carried in a NB-NoT system message.
  • the first message may be a system message: a system information block type 2 (NB-IoT system information block type 2 (SIB2-NB) message).
  • SIB2-NB system information block type 2
  • the network device can broadcast the system message, and the terminal can receive the system message.
  • the first configuration information may be added to a late non-critical extension (lateNonCriticalExtension) field of an extension field of the SIB2-NB. Since the lateNonCriticalExtension field can be used to carry common channel related information, carrying the first configuration information in this field conforms to the configuration rule and facilitates backward compatibility.
  • the first message may include one or more of SIB2-NB and system information block type 22 (NB-IoT system information block type 22, SIB22-NB).
  • the first configuration information may also be carried in the system message SIB22-NB message and sent to the terminal.
  • the multi-carrier scenario is specifically introduced below.
  • the multiple carriers of the network device may include an anchor carrier and several non-anchor carriers. Among them, the spectrum bandwidth of each carrier is 180 kHz, and only the anchor carrier can carry messages such as synchronization and broadcast.
  • the terminal can only transmit data on one carrier at a time, and it is not allowed to transmit data on the anchor carrier and non-anchor carrier at the same time.
  • Each carrier in the multi-carrier corresponds to a physical resource block (PRB), and a network device can transmit data to a terminal on a carrier's PRB.
  • PRB physical resource block
  • the RE position information of the NPRS carried on the PRB of the anchor in the multi-carrier may be carried in the SIB2-NB message to notify the terminal.
  • the RE position information of the NPRS carried on the PRB of the non-anchor carrier may be carried in the SIB22-NB message to notify the terminal.
  • the first configuration information is added to a field of downlink universal carrier configuration information (DL-CarrierConfigCommon-NB-r14) in the SIB22-NB.
  • the first message when the downlink resource used to carry NPRS includes the PRB of the anchor carrier in the multi-carrier, the first message contains SIB2-NB; when the downlink resource used to carry NPRS contains the non-carrier When the PRB of the carrier is anchored, the first message includes SIB22-NB.
  • each of the multiple carriers corresponds to a respective PRB, that is, there are multiple PRBs.
  • the NPRS may be carried on any one of the plurality of PRBs, or may be carried on any one of the plurality of PRBs.
  • the first message in the two cases is introduced below.
  • a.NPRS is carried on one PRB among multiple PRBs
  • the one PRB may be a PRB of an anchor or a PRB of a non-anchor carrier.
  • the system message (first message) carrying the first configuration information may be SIB2-NB, that is, the network device carries the first configuration information in the SIB2-NB and sends it to the terminal.
  • the system message (first message) carrying the first configuration information may be SIB22-NB, that is, the network device carries the first configuration information in the SIB22-NB and sends it to terminal.
  • NPRS is carried on multiple PRBs among multiple PRBs
  • the NPRS is carried on multiple PRBs among multiple PRBs
  • the multiple pieces of first configuration information respectively indicate a resource position where NPRS is configured on a PRB that carries NPRS.
  • Each PRB carrying an NPRS corresponds to a first configuration information
  • the first configuration information corresponding to a PRB carrying an NPRS indicates a resource location on which the NPRS is configured.
  • the first message includes SIB2-NB, that is, the system message sent by the network device carrying the first configuration information may include SIB2-NB.
  • the first configuration information corresponding to the NPRS on the PRB of the anchor carrier is carried by the SIB2-NB.
  • the system message sent by the network device carrying the first configuration information may include the SIB22-NB.
  • the first configuration information corresponding to the NPRS on the PRB of the non-anchor carrier is carried by the SIB22-NB.
  • the network device when the PRB of the anchor carrier of multiple PRBs carries NPRS, and the PRB of one non-anchor carrier carries NPRS, the network device carries the first configuration information corresponding to the PRB of the anchor carrier in SIB2-NB. Broadcast to the terminal. In addition, the network device broadcasts the first configuration information corresponding to the PRB of the non-anchor carrier in the SIB22-NB and broadcasts it to the terminal.
  • the first configuration information corresponding to the PRB of the anchor carrier indicates the resource location where the NPRS is configured on the PRB of the anchor carrier.
  • the first configuration information corresponding to the PRB of a non-anchor carrier indicates the resource location where NPRS is configured on the PRB of the non-anchor carrier.
  • the number of the first message may include two: the above-mentioned SIB2-NB and SIB22-NB. It can be understood that the foregoing example of the first message is only used to explain the embodiment of the present application, and should not be construed as a limitation.
  • the first message may also be another system message, which is not limited in the embodiment of the present application.
  • the network device may periodically send the system message.
  • the terminal may receive the system message in an idle state to obtain the position of the RE carried by the NPRS on the downlink resource.
  • the number of network devices can be multiple.
  • the terminal can receive the first message from multiple network devices, obtain the NPRS configuration information of each network device in the multiple network devices, and then obtain the NPRS of each network device in the downlink. The location of the RE carried on the resource, thereby puncturing the REs occupied by these NPRSs during data demodulation.
  • the terminal may remove the NPRS according to the learned positions of the REs on which the NPRS is distributed on the downlink resource. That is, the terminal performs puncturing processing on the NPRS during downlink decoding to remove the NPRS carried in the downlink data, which can reduce the NPRS interference during data demodulation.
  • the part of the downlink resource except the RE occupied by the NPRS may be occupied by the PDCCH or the PDSCH.
  • the first configuration information may include NPRS_ID and configuration information of PartB.
  • the NPRS_ID is configured by the cell nprs_ID-r14
  • the configuration information of Part B is configured by the cell of partB-r14.
  • the cells nprs_ID-r14 and partB-r14 are sent to the terminal by the network device, and the terminal is used to determine the resource location where the NPRS is configured on the downlink resource.
  • the first configuration information may be sent in a first message.
  • the first message may include one or more of the following: SIB2-NB and SIB22-NB. The following are examples:
  • the first deployment information is carried in SIB2-NB as an example:
  • the first deployment information is carried in the lateNonCriticalExtension field.
  • Cells nprs_ID-r14 and partB-r14 can be added to this field.
  • the foregoing first configuration information example can be referred to.
  • the first deployment information is carried in SIB22-NB. For example:
  • the first deployment information is carried in the DL-CarrierConfigCommon-NB-r14 field, and the cells nprs_ID-r14 and partB-r14 can be added to this field.
  • the nprs_ID-r14 and partB-r14 can refer to the foregoing First configuration information example.
  • FIG. 6 is a schematic structural diagram of a terminal and a network device according to an embodiment of the present application.
  • the terminal includes a receiving unit 601 and a demodulation unit 602, where:
  • the receiving unit 601 is configured to receive a first message sent by a network device, where the first message carries first configuration information, and the first configuration information indicates a resource position where a positioning reference signal PRS is configured on a downlink resource; Resources other than resources are used to carry data to be demodulated;
  • the demodulation unit 602 is configured to demodulate the demodulated data according to the first configuration information, and the terminal skips the resources occupied by the PRS when demodulating the data carried on the downlink resources.
  • the terminal includes a processing unit 701 and a sending unit 702, where:
  • a processing unit 701 configured to determine a first message
  • the sending unit 702 is configured to send a first message to the terminal, where the first message carries first configuration information, and the first configuration information indicates a resource location where the positioning reference signal PRS is configured on the downlink resource;
  • the external resources are used to carry the data to be demodulated;
  • the first configuration information is used for the terminal to demodulate the demodulated data according to the first configuration information;
  • the terminal skips the resources occupied by the PRS when demodulating the data carried on the downlink resources.
  • the first message includes one or more of the following: a system message SIB2 or a system message SIB22.
  • the first message includes the system message SIB2; if the downlink resource includes the PRB of the non-anchor carrier in the multi-carrier, the first The message contains the system message SIB22.
  • SIB2 can be SIB2-NB and SIB22 can be SIB22-NB.
  • the first message is sent by the network device to the terminal when the network device is configured in the second mode, and resources other than resources occupied by the PRS on the downlink resources in the second mode are used to carry data to be demodulated.
  • each unit in the terminal and the network device described in FIG. 6 may also correspond to the corresponding description of the method embodiment shown in FIG. 5, which is not repeated here.
  • FIG. 7 is a schematic structural diagram of another terminal provided by an embodiment of the present application.
  • the terminal may include: one or more terminal processors 801, memory 802, communication interface 803, receiver 805, transmitter 806, coupler 807, antenna 808, user interface 809, and input / output modules (Including audio input / output module 810, key input module 811, display 812, etc.).
  • FIG. 2 uses the bus connection as an example. among them:
  • the communication interface 803 may be used for the terminal to communicate with other communication devices, such as a network device.
  • the network device may be the network device shown in FIG. 1, or may be the base station shown in FIG. 2 and FIG. 3.
  • the communication interface 803 may be a Long Term Evolution (LTE) (4G) communication interface, or a communication interface of 5G or a new air interface in the future.
  • LTE Long Term Evolution
  • the terminal is not limited to a wireless communication interface, and the terminal may also be configured with a wired communication interface 803, such as a local access network (LAN) interface.
  • LAN local access network
  • the transmitter 806 may be configured to perform transmission processing on a signal output by the terminal processor 801, for example, signal modulation.
  • the receiver 805 may be used for receiving processing, such as signal demodulation, of a mobile communication signal received by the antenna 808.
  • the transmitter 806 and the receiver 805 may be considered as a wireless modem.
  • the number of the transmitters 806 and the receivers 805 may be one or more.
  • the antenna 808 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the coupler 807 is configured to divide the mobile communication signal received by the antenna 808 into multiple channels and distribute the signals to multiple receivers 805.
  • the terminal may further include other communication components, such as a GPS module, a Bluetooth module, a wireless fidelity (Wi-Fi) module, and the like.
  • the terminal is not limited to the wireless communication signals described above.
  • the terminal may also support other wireless communication signals, such as satellite signals, short-wave signals, and so on.
  • the terminal may also be configured with a wired network interface (such as a LAN interface) to support wired communication.
  • the input / output module may be used to implement interaction between a terminal and a user / external environment, and may mainly include an audio input / output module 810, a key input module 811, a display 812, and the like. Specifically, the input / output module may further include a camera, a touch screen, a sensor, and the like. The input and output modules communicate with the terminal processor 801 through the user interface 809.
  • the memory 802 is coupled to the terminal processor 801 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 802 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 802 may store an operating system (hereinafter referred to as a system), such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 802 may also store a network communication program, which can be used to communicate with one or more additional devices, one or more terminals, and one or more network devices.
  • the memory 802 can also store a user interface program.
  • the user interface program can display the content of the application program realistically through a graphical operation interface, and receive user control operations on the application program through input controls such as menus, dialog boxes, and keys .
  • the memory 802 may be configured to store a data transmission method provided by one or more embodiments of the present application on a terminal side.
  • a data transmission method provided by one or more embodiments of this application.
  • the terminal processor 801 may be used to read and execute computer-readable instructions. Specifically, the terminal processor 801 may be used to call a program stored in the memory 812, for example, a program implemented on the terminal side of a data transmission method provided by one or more embodiments of the present application, and execute instructions included in the program.
  • the terminal may be a terminal in a network system in the application scenario shown in FIG. 1 and may be implemented as a mobile device, a mobile station, a mobile unit, a wireless unit, a remote unit, a user agent, Mobile clients and more.
  • the terminal shown in FIG. 7 is only an implementation manner of the embodiment of the present application. In actual applications, the terminal may further include more or fewer components, which is not limited herein.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device may include one or more network device processors 901, a memory 902, a communication interface 903, a transmitter 905, a receiver 906, a coupler 907, and an antenna 908. These components may be connected through the bus 904 or other types, and FIG. 8 takes the connection through the bus as an example. among them:
  • the communication interface 903 may be used for a network device to communicate with other communication devices, such as a terminal or other network devices.
  • the terminal may be a terminal shown in FIG. 7.
  • the communication interface 903 may be a Long Term Evolution (LTE) (4G) communication interface, or a communication interface of 5G or a new air interface in the future.
  • LTE Long Term Evolution
  • the network device may also be configured with a wired communication interface 903 to support wired communication.
  • a backhaul link between a network device and other network devices may be a wired communication connection.
  • the transmitter 905 may be configured to perform transmission processing on a signal output by the network device processor 901, for example, signal modulation.
  • the receiver 906 may be configured to perform reception processing on a mobile communication signal received by the antenna 908. For example, signal demodulation.
  • the transmitter 905 and the receiver 906 may be considered as a wireless modem.
  • the number of the transmitters 905 and the receivers 906 may be one or more.
  • the antenna 908 may be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the coupler 907 may be used to divide the mobile communication signal into multiple channels and distribute the signals to multiple receivers 906.
  • the memory 902 is coupled to the network device processor 901 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 902 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 902 may store an operating system (hereinafter referred to as a system), for example, embedded operating systems such as uCOS, VxWorks, and RTLinux.
  • the memory 902 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the network device processor 901 may be used to perform wireless channel management, implement call and communication link establishment and removal, and provide cell switching control for users in the control area.
  • the network device processor 901 may include: an administration module / communication module (AM / CM) (a center for voice exchange and information exchange), and a basic module (BM) (for a Complete call processing, signaling processing, wireless resource management, wireless link management and circuit maintenance functions), code conversion and submultiplexer (TCSM) (used to complete multiplexing demultiplexing and code conversion functions )and many more.
  • AM / CM administration module / communication module
  • BM basic module
  • TCSM code conversion and submultiplexer
  • the network device processor 901 may be configured to read and execute computer-readable instructions. Specifically, the network device processor 901 may be used to call a program stored in the memory 902, for example, a program for implementing a data transmission method provided by one or more embodiments of the present application on a network device side, and execute instructions included in the program.
  • the network device may be a network device in the network system in the application scenario shown in FIG. 1 and may be implemented as a base transceiver station, a wireless transceiver, a basic service set (BSS), and an extended service set (ESS).
  • BSS basic service set
  • ESS extended service set
  • the network device shown in FIG. 8 is only an implementation manner of the embodiment of the present application. In actual applications, the network device may further include more or fewer components, which is not limited herein.
  • An embodiment of the present application further provides a computer-readable storage medium.
  • the computer-readable storage medium stores instructions.
  • the computer-readable storage medium runs on a computer or a processor, the computer or the processor executes any one of the foregoing methods. Or multiple steps.
  • each component module of the above signal processing device is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in the computer-readable storage medium.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium.
  • the computer instructions can be transmitted from one website site, computer, server, or data center to another website site by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), and the like.
  • the processes may be completed by a computer program instructing related hardware.
  • the program may be stored in a computer-readable storage medium.
  • When the program is executed, Can include the processes of the method embodiments described above.
  • the foregoing storage media include: ROM or random storage memory RAM, magnetic disks, or optical discs, which can store various program code media.

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Abstract

一种数据传输方法和装置，该方法包括：终端接收网络设备发送的第一消息，第一消息携带第一配置信息，第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；下行资源上除PRS占用的资源之外的资源用于承载待解调数据；终端根据第一配置信息对待解调数据进行解调，终端解调承载在下行资源上的数据时跳过PRS占用的资源。实施本申请实施例，可以提高下行速率。

Description

数据传输方法和装置 技术领域
本申请涉及通信技术领域，尤其涉及一种数据传输方法和装置。
背景技术
在通信技术领域，下行达到时间观测差(observed time difierence of arrival，OTDOA)用于通过观测到达时间差进行终端定位。终端可以对候选小区与参考小区进行监听，测量定位参考信号(position reference signal，PRS)从各小区到达终端的时间，计算候选小区发送的PRS信号与参考小区发送的PRS信号之间的下行达到时间观测差值。候选小区的数量可以是多个，相应的可以得到多个下行达到时间观测差值。通过这多个下行达到时间观测差值，可以确定终端所处的位置。
在窄带物联网(narrowband internet of thing，NB-IoT)场景下，小区向终端发送NB-IoT定位参考信号(NB-IoT position reference signal，NPRS)。NPRS可以在下行资源块中传输，在频域上占用一个子帧的1/6。NPRS传输的方式可以通过两种方式实现，第一模式是用于传输NPRS的子帧设置为无效子帧，不再用于其他下行调度。第二模式是NPRS所在的子帧仍然用于下行调度，调度过程中针对NPRS占用的资源单元(resource element，RE)进行打孔处理。
然而，对于第一模式来说，由于NPRS所在的子帧不再用于其他下行调度，造成下行资源的浪费。对于第二模式来说，终端在对包含NPRS的资源上的信号进行解调时，无法获取NPRS在下行资源上的打孔位置，NPRS对下行数据解调产生干扰，从而降低了终端下行解调的成功率，降低下行速率。
发明内容
本申请公开了一种数据传输方法及装置，可以减少PRS对下行数据解调产生的干扰，从而可以提高下行速率。
第一方面，本申请实施例提供一种数据传输方法，该方法包括：终端接收网络设备发送的第一消息，所述第一消息携带第一配置信息，所述第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据；所述终端根据所述第一配置信息对所述待解调数据进行解调，所述终端解调承载在所述下行资源上的数据时跳过所述PRS占用的资源。
上述的数据传输方法中，可以实现终端在进行数据解调时去除NPRS，可以降低数据解调时NPRS的干扰，更准确的进行数据解调，从而可以提高下行速率。
具体实现中，第一配置信息可以包含NPRS_ID和Part B的配置信息。NPRS_ID可以表征在下行资源的频域上NPRS的分布位置。Part B的配置信息可以包含NPRS在下行资源中分布的周期信息等，用于表征在下行资源的时域上NPRS的分布位置。终端可以根据第一配置信息获知NPRS在下行资源上被配置的RE位置。
在一种可能的实施例中，所述第一消息包含以下一个或多个：系统消息SIB2或系统消 息SIB22。
具体实现中，可以在SIB2-NB的扩展字段晚期非关键扩展(lateNonCriticalExtension)字段中增加第一配置信息。由于该lateNonCriticalExtension字段可以用于携带公共信道相关信息，将第一配置信息携带在该字段符合配置规律，便于向下兼容。
具体实现中，也可以在SIB22-NB中的下行通用载波配置信息(DL-CarrierConfigCommon-NB-r14)的字段中增加第一配置信息。
可选的，网络设备可以是周期性的发送第一消息。
在一种可能的实施例中，若所述下行资源包含所述多载波中的锚定载波的物理资源块PRB，所述第一消息包含所述系统消息SIB2；若所述下行资源包含所述多载波中的非锚定载波的PRB，所述第一消息包含所述系统消息SIB22。
在多载波场景下，多个载波中每个载波对应各自的PRB，即有多个PRB。NPRS可以承载在这多个PRB中的任一个PRB上，也可以承载在这多个PRB中的中的任意多个PRB上。
在NB-IoT场景下，SIB2可以是SIB2-NB，SIB22可以是SIB22-NB。
在一种可能的实施例中，所述第一消息是所述网络设备在配置为第二模式时向所述终端发送的，所述第二模式下所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据。
第二方面，本申请实施例提供一种数据传输方法，该方法包括：网络设备向终端发送第一消息，所述第一消息携带第一配置信息，所述第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据；所述第一配置信息用于所述终端根据所述第一配置信息对所述待解调数据进行解调；所述终端解调承载在所述下行资源上的数据时跳过所述PRS占用的资源。
上述的数据传输方法中，可以实现终端在进行数据解调时去除NPRS，可以降低数据解调时NPRS的干扰，更准确的进行数据解调，从而可以提高下行速率。
具体实现中，第一配置信息可以包含NPRS_ID和Part B的配置信息。NPRS_ID可以表征在下行资源的频域上NPRS的分布位置。Part B的配置信息可以包含NPRS在下行资源中分布的周期信息等，用于表征在下行资源的时域上NPRS的分布位置。终端可以根据第一配置信息获知NPRS在下行资源上被配置的RE位置。
在一种可能的实施例中，所述第一消息为以下一个或多个：系统消息SIB2或系统消息SIB22。
具体实现中，可以在SIB2-NB的扩展字段晚期非关键扩展(lateNonCriticalExtension)字段中增加第一配置信息。由于该lateNonCriticalExtension字段可以用于携带公共信道相关信息，将第一配置信息携带在该字段符合配置规律，便于向下兼容。
具体实现中，也可以在SIB22-NB中的下行通用载波配置信息(DL-CarrierConfigCommon-NB-r14)的字段中增加第一配置信息。
可选的，网络设备可以是周期性的发送第一消息。
在一种可能的实施例中，若所述下行资源包含所述多载波中的锚定载波的物理资源块PRB，所述第一消息包含所述系统消息SIB2；若所述下行资源包含所述多载波中的非锚定 载波的PRB，所述第一消息包含所述系统消息SIB22。
在多载波场景下，多个载波中每个载波对应各自的PRB，即有多个PRB。NPRS可以承载在这多个PRB中的任一个PRB上，也可以承载在这多个PRB中的中的任意多个PRB上。
在一种可能的实施例中，所述网络设备向终端发送第一消息，包括：当配置为第二模式时，所述网络设备向终端发送第一消息，所述第二模式下所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据。
在NB-IoT场景下，SIB2可以是SIB2-NB，SIB22可以是SIB22-NB。
第三方面，本申请实施例提供一种终端，包括处理器和存储器，所述存储器用于存储程序指令，所述处理器用于调用所述程序指令来执行第一方面或第一方面任一个可能的实施例所提供的方法。
第四方面，本申请实施例提供一种网络设备，包括处理器和存储器，所述存储器用于存储程序指令，所述处理器用于调用所述程序指令来执行第二方面或第二方面任一个可能的实施例所提供的方法。
第五方面，本申请实施例提供一种终端，该终端包括用于执行第一方面或第一方面任一个可能的实施例所提供的数据传输方法的模块或单元。
第六方面，本申请实施例提供一种网络设备，该网络设备包括用于执行第二方面或第二方面任一个可能的实施例所提供的数据传输方法的模块或单元。
第七方面，本发明实施例提供一种芯片系统，该芯片系统包括至少一个处理器，存储器和接口电路，该存储器、该接口电路和该至少一个处理器通过线路互联，该至少一个存储器中存储有程序指令；该程序指令被该处理器执行时，实现第一方面或者第一方面任一个可能的实施例所描述的方法。
第八方面，本发明实施例提供一种芯片系统，该芯片系统包括至少一个处理器，存储器和接口电路，该存储器、该接口电路和该至少一个处理器通过线路互联，该至少一个存储器中存储有程序指令；该程序指令被该处理器执行时，实现第二方面或者第二方面任一个可能的实施例所描述的方法。
第九方面，本发明实施例提供一种计算机可读存储介质，该计算机可读存储介质中存储有程序指令，当该程序指令由处理器运行时，实现第一方面或者第一方面任一个可能的实施例所描述的方法。
第十方面，本发明实施例提供一种计算机可读存储介质，该计算机可读存储介质中存储有程序指令，当该程序指令由处理器运行时，实现第二方面或者第二方面任一个可能的实施例所描述的方法。
第十一方面，本发明实施例提供一种计算机程序产品，当该计算机程序产品在由处理器上运行时，实现第一方面或者第一方面任一个可能的实施例所描述的方法。
第十二方面，本发明实施例提供一种计算机程序产品，当该计算机程序产品在由处理器上运行时，实现第二方面或者第二方面任一个可能的实施例所描述的方法。
本申请实施例中，终端在该下行资源上进行数据解调时，可以根据获知的NPRS在该下行资源上分布的RE的位置去除NPRS。即终端在下行解码时对NPRS进行打孔处理，来 去除承载在下行资源上的NPRS，可以降低数据解调时NPRS的干扰，更准确的进行数据解调，从而可以提高下行速率。
附图说明
下面对本申请实施例用到的附图进行介绍。
图1是本申请实施例提供的一种终端定位的应用场景的示意图；
图2是本申请实施例提供的一种网络系统的架构示意图；
图3是本申请实施例提供的一种终端定位方法的流程示意图；
图4是本申请实施例提供的一种NPRS在NB-IoT的下行资源中的分布情况示意图；
图5是本申请实施例提供的一种数据传输方法的流程示意图；
图6是本申请实施例提供的一种终端和网络设备的结构示意图；
图7是本申请实施例提供的另一种终端的结构示意图；
图8是本申请实施例提供的一种网络设备的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。本申请实施例的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
首先，介绍本申请实施例涉及到的应用场景。请参阅图1，图1是本申请实施例提供的一种终端定位的应用场景的示意图。该终端定位的应用场景涉及到的设备可以包含终端10和至少三个网络设备。本申请实施例以三个网络设备为例进行介绍，可以理解的，为提高终端10定位的准确性，还可以使用四个或者四个以上的网络设备来实现终端10的定位，具体的定位过程可以类比三个网络设备的情况，这里不再赘述。实现终端定位可以包含以下步骤：
步骤一：终端10对网络设备进行监听，测量来自网络设备的PRS到达终端10的时间，即下行到达时间，该下行到达时间为来自网络设备的PRS到达终端10的时刻。
具体的，终端10可以测量来自网络设备20的PRS到达终端10的时间，即下行到达时间t1。类似地，终端10可以测得来自网络设备30的PRS到达终端10的时间t2(下行到达时间t2)和来自网络设备40的PRS到达终端10的时间t3(下行到达时间t3)。
步骤二：终端10计算下行到达时间t1与下行到达时间t2之间的观测差值t2-t1，并计算下行到达时间t1与下行到达时间t3之间的观测差值t3-t1。
本申请实施例中，网络设备20所覆盖的小区可以是终端10的参考小区，终端10可以计算其余两个网络设备的下行到达时间与网络设备20的下行到达时间之间的观测差值。本申请实施例中，参考小区可以是终端10的服务小区，网络设备30和网络设备40所覆盖的小区可以是终端10的邻区。
步骤三：演进的服务移动位置中心(evolved serving mobile location centre，E-SMLC)根据终端10发送的下行到达时间的观测差值t2-t1和t3-t1确定终端10的位置。关于E-SMLC的连接关系和功能可以参阅后文具体描述。
具体的，设定终端10的坐标为(x，y)，该坐标可以表征终端10所处的地理位置信息。网络设备20、网络设备30和网络设备40的坐标为已知的，依次为(x1，y1)、(x2，y2)、 (x3，y3)。PRS在终端10和网络设备之间传输速度为电磁波在空气中的传输速度，近似为光速c。网络设备20发送PRS的时刻为T1，网络设备30发送PRS的时刻为T2，网络设备40发送PRS的时刻为T3。则：
Figure PCTCN2018102284-appb-000001
其中，i依次取值为1、2和3。d1、d2和d3依次为终端10与网络设备20、网络设备30、网络设备40之间的距离。
则下行到达时间之间的观测差值：
Figure PCTCN2018102284-appb-000002
公式(2)中，确定终端10的位置(x，y)需要上述两个双曲线方程，终端10的地理位置信息由两个曲线的交点确定。
可以理解的，不限于上述候选小区的数量，为了提高终端10定位的准确性，终端10也可以测量三个或者三个以上的网络设备与网络设备20的下行到达时间之间的观测差值，即根据三条或者三条以上的曲线来确定终端10的位置。
上述的下行到达时间的观测差值t2-t1和t3-t1可以称为OTDOA。由于网络设备20发送PRS的时刻T1、网络设备30发送PRS的时刻T2和网络设备40发送PRS的时刻T3由于时间不同步可能存在误差，该误差为帧定时相关时间差(relative time difference，RTD)。则可以根据OTDOA和RTD计算得到参考小区与多个候选小区之间传输的NPRS的实际的到达时间差(time difference of arrival，TDOA)，即TDOA＝OTDOA-RTD。若网络设备30和网络设备40对应的RTD分别为t2′和t3′，则公式(2)可以进一步精确为：
Figure PCTCN2018102284-appb-000003
其中，确定终端的坐标(x，y)后，E-SMLC可以确定终端所处的地理位置信息，该地理位置信息可以包含终端10所处的经纬度的位置信息、地理坐标，也可以包含终端10定位的辅助数据，例如精确度估计等。
其次，介绍本申请实施例中终端10定位所涉及到的网络架构和流程。
请参阅图2，图2是本申请实施例提供的一种网络系统的架构示意图。该网络系统100可以是LTE通信系统，也可以是NB-IoT系统。该网络系统还支持其他3GPP标准组定义的无线接入技术。具体例如，第五代移动通信系统无线接入网(5-generationradio access network，5GRAN)、下一代RAN(next generation RAN，NG RAN)等接入核心网(core network，CN)。还可以是未来其他新出现的无线接入技术，本申请实施例对此不作限制。图2示出的系统架构还可以是未来演进的新空口(new radio，NR)系统，机器与机器通信(machine to machine，M2M)系统等。
如图2所示，该网络系统100包括终端101、基站(Evolved Node B，eNB)102、移动性管理实体(Mobility Management Entity，MME)103、E-SMLC104和网关移动位置中 心(Gateway Mobile Location Center，GMLC)105，其中，终端10与基站102之间可以建立通信连接，终端10可以通过基站102与MME 103进行通信，还可以通过基站102、MME 103与E-SMLC 104进行通信。其中：
终端101主要用于：
①在位置服务(location service，LCS)中接收多个基站发送的NPRS，计算得到OTDOA或者TDOA，向E-SMLC 104发送携带OTDOA或者TDOA的消息。该携带OTDOA或者TDOA的消息可以用于E-SMLC 104确定终端101的位置信息。
②向E-SMLC 104上报定位能力信息，该定位能力信息用于E-SMLC 104根据该定位能力信息和其他信息选择定位方法，其他信息可以包含位置相关应用所要求的服务质量(quality of service，QoS)、E-SMLC 104配置的定位方法等。
③发起位置服务，向MME 103发送包含请求自身定位信息或请求定位方法的辅助数据的消息。终端101可以是图1所描述的终端10。
④接收并解调基站102承载在下行资源上的下数据，下行数据可以包括控制数据、用户数据等。
终端101可以是可移动的用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、用户终端、或用户代理。接入终端可以是蜂窝电话、具有定位功能的手持设备、计算设备或车载设备、可穿戴设备、5G系统中的终端或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的终端等。具体的，终端101可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
eNB 102主要用于：
①接收E-SMLC 104发起的OTDOA辅助数据请求，该请求向eNB 102请求上报OTDOA辅助数据。
②将PRS配置信息和测量信息发送给E-SMLC 104。
③向终端101发送PRS。eNB 102还可以用于完成定位相关测量，并将测量结果上报给E-SMLC 104。
④与一个或多个终端101进行通信，也可以用于与一个或多个具有部分终端功能的基站进行通信(比如宏基站与微基站，如接入点，之间的通信)。
eNB 102可以是时分同步码分多址(time division synchronous code division multiple access，TD-SCDMA)系统中的基站收发台(base transceiver station，BTS)，也可以是LTE系统中的演进型基站(evolutional node B，eNB)，或者第五代(5th-generation，5G)移动通信系统、新空口(new radio，NR)系统中的基站。另外，eNB 102也可以为接入点(access point，AP)、传输节点(transmission and receiving point，TRP)、中心单元(central unit，CU)或其他网络实体，并且可以包括以上网络实体的功能中的一些或所有功能。在未来的 通信系统中，eNB 102还可以有其他名称，本申请实施例不作具体限定。
MME 103主要用于：
①向E-SMLC 104转发LCS服务请求。该LCS服务请求可以是终端101发起的，也可以是位置相关应用经由GMLC 105向MME 103发起的，还可以是正在为终端101提供服务的PLMN中的网元发起，例如MME 103需要对终端101发起LCS服务请求。
②支持LTE定位协议附件(LTE positioning protocol annex，LPPa)，实现和eNB 102进行定位相关交互。
③透传E-SMLC 104和其他实体之间的定位相关消息，例如E-SMLC 104和eNB 102之间的定位相关消息，E-SMLC 104和终端101之间的定位相关消息。
④负责空闲模式的终端101的定位、传呼、中继过程。具体的，MME 103接用于支持非接入层(non-access stratum，NAS)信令及其安全、跟踪区域(tracking area，TA)列表的管理、公用数据网网关(public data networkgateway，P-GW)和服务网关(serving gateway，S-GW)的选择、跨MME切换时进行MME的选择、在向2G/3G接入系统切换过程中进行GPRS服务支持节点(serving GPRS supportnode，SGSN)的选择、用户的鉴权、漫游控制以及承载管理、3GPP不同接入网络的核心网络节点之间的移动性管理以及终端101在空闲状态下可达性管理(包括寻呼重发的控制和执行)。
E-SMLC 104主要用于：
①支持高精度定位业务，具体完成接入网侧的定位流程控制、位置计算以及网络测量管理。3GPP协议规定E-SMLC 104可以集成在无线网络控制器(radio network controller，RNC)中，也可以在物理上作为一个独立的功能模块实现。当E-SMLC 104独立设置时，可以称为独立SMLC(stand alone SMLC，SAS)。
②对定位资源进行调度和管理。E-SMLC 104是定位测量与定位计算的主要功能单元。在接收到定位请求后，E-SMLC 104可以根据多个因素选择合适的定位方法，控制终端101和eNB 102进行位置信息测量，并根据选择的定位方法和所获得的定位信息进行经纬度计算。其中，多个因素可以包含以下一个或多个：位置相关应用要求的服务质量(quality of service，QoS)、终端101的定位能力、终端101所处小区的定位功能激活标识和网络运营商购买的LCS许可证等。
③计算位置信息并估计定位精度，并向MME 103发送包含位置信息的定位结果或相关的定位数据。
④为了保证终端101更容易的搜索到邻小区的信号，E-SMLC 104还用于计算定位辅助数据，并下发给终端101。
GMLC 105主要用于：
①接收来自位置相关应用的LCS请求，向E-SMLC 104发出对终端101定位的路由信息，并将获取的定位结果返回位置相关应用。GMLC 105是位置相关应用获取终端101位置信息的网关，与外部LCS客户端相连。GMLC 105可以包含在核心网(core network，CN)中，可以充当LCS的服务器。
②对用户和外部LCS客户端进行鉴权和授权，将来自E-SMLC 104的经纬度的位置信息转换为地理坐标，对外部LCS客户端和用户进行计费，接收外部LCS客户端请求并作出 相应的响应，完成用户数据管理、业务数据管理、业务签约信息管理、业务提供商(service provider，SP)数据管理等。其中，外部LCS客户端(图中未示出)是网络运营商或者其他第三方提供的位置相关应用，也称为位置相关应用，外部LCS客户端与GMLC 105建立通信连接。
基于图2所描述的网络系统，下面介绍进行终端101定位的具体流程。请参阅图3，图3是本申请实施例提供的一种终端定位方法的流程示意图，如图3所示，该终端定位方法包含步骤S101～S111。
S101、向MME 103发起LCS请求。
具体实现中，步骤S101可以由终端101发起，也可以由GMLC 105发起，还可以由正在为终端101提供服务的PLMN中的网元发起，例如由MME 103发起。因此步骤S101可以具体实施为步骤S101a、S101b或者S101c，以下分别进行介绍。
S101a、终端101向MME 103发送终端始发定位请求(mobile originated location request，MO-LR)。该请求可以是以NAS消息的形式发送，该NAS消息用于请求定位服务。该NAS消息中可以包含用于请求终端101自身位置的信息或用于请求某种定位方法的辅助数据，该辅助数据用于请求终端101自身位置。
S101b、GMLC 105向MME103发送终端终止定位请求(mobile terminated location request，MT-LR)。该请求用于位置相关应用请求对终端101进行定位。该位置相关应用可以是外部LCS客户端。
S101c、MME 103生成网络发起的定位请求(network induced location request，NI-LR)。该定位请求还可以是正在为终端101提供服务的PLMN中的网元产生。
S102、MME 103将LCS请求发送给E-SMLC 104。
S103、终端101向E-SMLC 104上报定位能力信息。
其中，终端101的定位能力信息可以包含终端101是否支持OTDOA定位方式的指示信息。
S104、E-SMLC104确定定位方法。
E-SMLC 104可以根据多个因素选择合适的定位方法。其中，多个因素可以包含以下一个或多个：位置相关应用要求的QoS、终端101的定位能力信息、终端101所处小区的定位功能激活标识和网络运营商购买的LCS许可证等。
S105、E-SMLC104向eNB 102发起OTDOA辅助数据请求。
该请求用于向eNB 102请求上报OTDOA辅助数据。OTDOA辅助数据用于辅助进行OTDOA测量。具体的，当参考小区和候选小区的载波频率为不同频率时，该OTDOA辅助数据可以包含异频邻区的信息，用于终端101进行异频PRS接收时间的测量。OTDOA辅助数据还可以包含参考小区和候选小区的PRS配置信息、eNB 102和候选小区的基站的帧定时信息、eNB 102和候选小区各小区的物理小区标识(physical cell identifier，PCI)和通用通信接口(general communication interface，GCI)。PRS配置信息可以包含指示PRS在下行资源上所占用的资源位置的信息，如用于指示时域位置的指针信息，用于指示频域信息的PRS标识。
S106、eNB 102向E-SMLC104发送OTDOA辅助数据响应。
OTDOA辅助数据响应中可以包含上述OTDOA辅助数据。
S107、E-SMLC104将OTDOA辅助数据发送给终端101。
S108、E-SMLC104对终端101发起定位请求。
其中，该定位请求可以是E-SMLC104通过轻量级表示协议(lightweight presentation protocol，LPP)消息Request Location Information向终端101发起的。该定位请求可以用于请求终端101执行PRS的到达时间差测量。
S109、终端101在接收到该定位请求时，启动PRS的到达时间差测量，并将测量结果发送给E-SMLC104。
具体的，终端101可以根据OTDOA辅助数据进行测量，例如该OTDOA辅助数据包含异频邻区的信息，终端101可以进行异频PRS接收时间的测量。该OTDOA辅助数据还包括PRS配置信息，终端101在该PRS配置信息指示的下行资源单元上测量PRS信号的时间观测差。具体的测量步骤可参考图1所描述的场景中步骤一和步骤二的具体描述，这里不再赘述。测量结果可以包含前述OTDOA或者TDOA，测量结果可以是通过LPP消息Provide Location Information上报给E-SMLC104。
S110、E-SMLC104根据测量结果对终端101进行定位，并将定位结果发送给MME 103。
其中，具体对终端101定位过程可参考图1所描述的场景中步骤三的具体描述，这里不再赘述。定位结果可以包含终端10所处的地理位置信息、定位成功或失败的标识信息、误差信息等。
S111、MME 103发送定位结果。
LCS请求发起方可以是终端101、GMLC 105或者MME 103发起，定位结果由MME 103发送给LCS请求具体的发起方。步骤S101具体实施为S101a时，MME 103向终端101透传定位结果，步骤S101具体实施为S101b时，MME 103可以向位置相关应用所运行的网络实体透传定位结果。步骤S101具体实施为S101c时，MME 103向发起定位请求的网元透传定位结果。
在NB-IoT场景下，小区向终端发送NB-IoT定位参考信号是NPRS。下面介绍NPRS在NB-IoT的下行资源中的分布情况。请参阅图4，图4是本申请实施例提供的一种NPRS在NB-IoT的下行资源中的分布情况示意图。如图4所示，NPRS所占用的RE在频域上占用一个子帧的1/6。且NPRS所占用的RE的频域偏移量等于NPRS-ID模6，即NPRS-ID对6取余，该NPRS-ID可以是物理小区ID(physical cell identity，PCID)，即NPRS来自的物理小区的ID，该NPRS-ID也可以是被配置的。NPRS所占用的RE位置由该频域偏移量确定。
NPRS在时频资源上部署的方式可以包含两种。以下分别进行说明。
第一模式(Part A)：用于传输NPRS的子帧不再传输其他下行数据，即传输NPRS的子帧对于其他下行数据来说设置为无效子帧。这种部署方式会造成下行资源的浪费，增加了下行容量的损失。
第二模式(Part B)：除了NPRS所占用的RE以外，用于传输NPRS的子帧仍然用于进行下行数据传输。使用这种部署方式可以节省下行资源，降低下行容量的损失。从网络设备侧来说，在进行下行数据部署时，需要避开NPRS所占用的RE，即将NPRS所占用的 RE进行打孔处理。对于终端来说，终端在进行OTDOA测量时可以根据OTDOA辅助数据来确定NPRS所占据的RE位置，进而接收NPRS进行OTDOA测量。具体进行OTDOA测量的描述可以参考图3中S109的具体描述。
本申请实施例中，NPRS在下行资源上打孔占用是指在该下行资源上，若干个RE用于承载NPRS，除去NPRS占用的RE，该下行资源仍然用于进行下行数据传输。本申请实施例中，该下行资源中除去NPRS占用的RE的部分可以被物理下行控制信道(physical downlink control channel，PDCCH)或者物理下行共享信道(physical downlink shared channel，PDSCH)占用。其中，该下行资源可以是一个或多个子帧。本申请实施例中，RE用于承载NPRS，也即是说NPRS被配置在该RE上传输给终端。
然而，上述第二模式下，终端在进行下行数据解调时，对于承载NPRS的子帧均作为下行数据进行解调。由于该子帧上承载有NPRS，NPRS对下行数据解调产生干扰，导致在进行下行解调时出现解调失败的情况，从而降低了下行速率。
基于上述图2的网络系统的架构示意图，本申请实施例提供了一种数据传输方法和装置，可以减少NPRS对下行数据解调产生的干扰，从而可以提高下行速率。
本申请实施例涉及的主要发明原理为：在第二模式下，即NPRS在下行资源上打孔占用时，网络设备可以通过携带第一配置信息的第一消息通知终端NPRS在下行资源上被配置的资源位置。终端在该下行资源上进行数据解调时根据第一配置信息去除NPRS，即终端解调承载在下行资源上的数据时跳过所述PRS占用的资源。终端在进行数据解调时去除NPRS，可以降低数据解调时NPRS的干扰，更准确的进行数据解调，从而可以提高下行速率。
基于上述主要发明原理，本申请实施例提供一种数据传输方法，可以提高下行速率。请参阅图5，图5是本申请实施例提供的一种数据传输方法的流程示意图。该数据传输方法中，网络设备可以是覆盖终端服务小区的基站。该数据传输方法包含但不限于步骤S201-S203。
S201、网络设备确定使用第二模式。
S202、网络设备向终端发送第一消息。
S203、当在下行资源上进行数据解调时，终端根据第一配置信息去除PRS对待解调数据进行下行解调。
本申请实施例中，在NB-IoT系统中PRS即为NPRS。网络设备可以在配置NPRS的部署方式时，配置使用第二模式。本申请实施例以网络系统为NB-IoT系统、PRS为NPRS为例进行介绍，可以理解的，示例仅用于解释本申请实施例，不限于NB-IoT系统，本申请对于类似的应用场景同样适用。
下面分别对第一配置信息和第一消息进行介绍。
(1)第一配置信息
第一配置信息指示NPRS在下行资源上被配置的资源位置。其中，第一配置信息可以包含NPRS_ID和Part B的配置信息。NPRS_ID可以表征在下行资源的频域上NPRS的分布位置。Part B的配置信息可以包含NPRS在下行资源中分布的周期信息等，用于表征在下行资源的时域上NPRS的分布位置。终端可以根据第一配置信息获知NPRS在下行资源 上被配置的RE位置。
(2)第一消息
其中，第一消息携带第一配置信息。在NB-IoT系统场景下，第一消息可以是NB-IoT的系统消息，即第一配置信息携带在NB-NoT的系统消息中。
在一种可能的实施方式中，第一消息可以是系统消息：系统信息区块类别2(NB-IoT system information block type 2，SIB2-NB)消息。网络设备可以广播该系统消息，终端可以接收该系统消息。具体的，可以在SIB2-NB的扩展字段晚期非关键扩展(lateNonCriticalExtension)字段中增加第一配置信息。由于该lateNonCriticalExtension字段可以用于携带公共信道相关信息，将第一配置信息携带在该字段符合配置规律，便于向下兼容。
在多载波场景下，第一消息可以包含SIB2-NB和系统信息区块类别22(NB-IoT system information block type 22，SIB22-NB)中的一个或者多个。第一配置信息还可以携带在系统消息SIB22-NB消息中发送给终端。下面具体介绍多载波场景，在多载波场景中，网络设备的这多个载波中可以包含一个锚定载波(anchor carrier)和若干个非锚定载波(non-anchor carrier)。其中，每个载波的频谱带宽为180kHz，且只有锚定载波可以承载同步和广播等消息。终端同一时间只能在一个载波上传输数据，不允许同时在锚定载波和非锚定载波上传输数据。多载波中的每一个载波对应一个物理资源模块(physical resource block，PRB)，网络设备可以在一个载波的PRB上承载数据传输给终端。
本申请实施例中，多载波中的anchor carrier的PRB上承载的NPRS的RE位置信息可以携带在SIB2-NB消息通知终端。non-anchor carrier的PRB上承载的NPRS的RE位置信息可以携带在SIB22-NB消息通知终端。在SIB22-NB中的下行通用载波配置信息(DL-CarrierConfigCommon-NB-r14)的字段中增加第一配置信息。即在多载波的场景下，当用于承载NPRS的下行资源包含多载波中的锚定载波的PRB时，第一消息包含SIB2-NB；当用于承载NPRS的下行资源包含多载波中的非锚定载波的PRB时，第一消息包含SIB22-NB。
本申请实施例中，多载波场景下多个载波中每个载波对应各自的PRB，即有多个PRB。NPRS可以承载在这多个PRB中的任一个PRB上，也可以承载在这多个PRB中的中的任意多个PRB上，下面分别对该两种情况下的第一消息进行介绍。
a.NPRS承载在多个PRB中的一个PRB上
在NPRS承载在多个PRB中的一个PRB上的情况下，该一个PRB可以是anchor cartier的PRB，也可以是non-anchor carrier的PRB。在该一个PRB是anchor carrier的PRB的情况下，携带第一配置信息的系统消息(第一消息)可以是SIB2-NB，即网络设备将第一配置信息携带在SIB2-NB中发送给终端。在该一个PRB是non-anchor carrier的PRB的情况下，携带第一配置信息的系统消息(第一消息)可以是SIB22-NB，即网络设备将第一配置信息携带在SIB22-NB中发送给终端。
b.NPRS承载在多个PRB中的多个PRB上
在NPRS承载在多个PRB中的多个PRB上的情况下，第一配置信息可以是多个，且每个第一配置信息是相互独立的。这多个第一配置信息分别指示承载NPRS的PRB上NPRS 被配置的资源位置。每个承载NPRS的PRB均对应一个第一配置信息，承载NPRS的PRB对应的第一配置信息指示该PRB上NPRS被配置的资源位置。承载NPRS的PRB包含anchor carrier的PRB的情况下，第一消息包含SIB2-NB，即网络设备发送的携带第一配置信息的系统消息可以包含SIB2-NB。anchor carrier的PRB上NPRS对应的第一配置信息通过SIB2-NB携带。承载NPRS的PRB包含non-anchor carrier的PRB的情况下，网络设备发送的携带第一配置信息的系统消息可以包含SIB22-NB。non-anchor carrier的PRB上NPRS对应的第一配置信息通过SIB22-NB携带。
举例说明，当多个PRB中anchor carrier的PRB上承载有NPRS，且其中一个non-anchor carrier的PRB上承载有NPRS时，网络设备将anchor carrier的PRB对应的第一配置信息携带在SIB2-NB中广播给终端。并且，网络设备将该一个non-anchor carrier的PRB对应的第一配置信息携带在SIB22-NB中广播给终端。其中，anchor carrier的PRB对应的第一配置信息指示该anchor carrier的PRB上NPRS被配置的资源位置。该一个non-anchor carrier的PRB对应的第一配置信息指示该non-anchor carrier的PRB上NPRS被配置的资源位置。此时第一消息的数量可以包含两个：上述的SIB2-NB和SIB22-NB。可以理解的，上述对第一消息的举例仅用于解释本申请实施例，不应构成限定。第一消息还可以是其他系统消息，本申请实施例对此不作限定。
当第一消息(如SIB2-NB或SIB22-NB)是系统消息的情况下，网络设备可以是周期性的发送该系统消息。终端可以在空闲(idle)状态接收该系统消息，来获取NPRS在下行资源上所承载RE的位置。
可以理解的，由于在进行OTDOA测量时，需要测量来自多个网络设备的PRS。网络设备的数量可以是多个，终端可以接收来自多个网络设备的第一消息，获取这多个网络设备中每个网络设备的NPRS的配置信息，然后获取每个网络设备的NPRS在该下行资源上承载的RE位置，从而在进行数据解调时打孔这些NPRS所占用的RE。
其中，终端在该下行资源上进行数据解调时，可以根据获知的NPRS在该下行资源上分布的RE的位置去除NPRS。即终端在下行解码时对NPRS进行打孔处理，来去除携带在下行数据中的NPRS，可以降低数据解调时NPRS的干扰。该下行资源中去除NPRS占用的RE的部分可以被PDCCH或者PDSCH占用。
下面介绍本申请实施例提供的数据传输方法的程序流程示例。
第一配置信息示例如下：
Figure PCTCN2018102284-appb-000004
Figure PCTCN2018102284-appb-000005
其中，第一配置信息可以包含NPRS_ID和PartB的配置信息。如上述程序流程所描述，NPRS_ID通过nprs_ID-r14这一信元来配置，Part B的配置信息通过partB-r14这一信元来配置。信元nprs_ID-r14和partB-r14由网络设备发送给终端，终端用来确定NPRS在下行资源上被配置的资源位置的。该第一配置信息可以携带在第一消息中发送。第一消息可以包含以下一个或多个：SIB2-NB和SIB22-NB。以下分别举例：
第一消息包含SIB2-NB的情况下，即将第一部署信息携带在SIB2-NB中举例：
Figure PCTCN2018102284-appb-000006
如上述程序流程所描述，即将第一部署信息携带在lateNonCriticalExtension字段上，该字段上可以增加信元nprs_ID-r14和partB-r14，nprs_ID-r14和partB-r14具体可以引用前述第一配置信息示例。
第一消息包含SIB22-NB的情况下，即将第一部署信息携带在SIB22-NB中举例：
Figure PCTCN2018102284-appb-000007
如上述程序流程所描述，即将第一部署信息携带在DL-CarrierConfigCommon-NB-r14字段上，该字段上可以增加信元nprs_ID-r14和partB-r14，nprs_ID-r14和partB-r14具体可以引用前述第一配置信息示例。
上述详细阐述了本申请实施例的方法，下面提供了本申请实施例的装置。
请参阅图6，图6是本申请实施例提供的一种终端和网络设备的结构示意图。
如图6所示，该终端包括接收单元601和解调单元602，其中：
接收单元601，用于接收网络设备发送的第一消息，第一消息携带第一配置信息，第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；下行资源上除PRS占用的资源之外的资源用于承载待解调数据；
解调单元602，用于根据第一配置信息对待解调数据进行解调，终端解调承载在下行资源上的数据时跳过PRS占用的资源。
如图6所示，该终端包括处理单元701和发送单元702，其中：
处理单元701，用于确定第一消息；
发送单元702，用于向终端发送第一消息，第一消息携带第一配置信息，第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；下行资源上除PRS占用的资源之外的资源用于承载待解调数据；第一配置信息用于终端根据第一配置信息对待解调数据进行解调；终端解调承载在下行资源上的数据时跳过PRS占用的资源。
作为一种可能的实施方式，第一消息包含以下一个或多个：系统消息SIB2或系统消息SIB22。
作为一种可能的实施方式，若下行资源包含多载波中的锚定载波的物理资源块PRB，第一消息包含系统消息SIB2；若下行资源包含多载波中的非锚定载波的PRB，第一消息包含系统消息SIB22。
在NB-IoT场景下，SIB2可以是SIB2-NB，SIB22可以是SIB22-NB。
作为一种可能的实施方式，第一消息是网络设备在配置为第二模式时向终端发送的，第二模式下下行资源上除PRS占用的资源之外的资源用于承载待解调数据。
需要说明的是，图6所描述的终端和网络设备中各个单元的实现还可以对应参照图5所示的方法实施例的相应描述，这里不再赘述。
请参阅图7，图7是本申请实施例提供的另一种终端的结构示意图。如图7所示，该终端可以包括：一个或多个终端处理器801、存储器802、通信接口803、接收器805、发射器806、耦合器807、天线808、用户接口809，以及输入输出模块(包括音频输入输出模块810、按键输入模块811以及显示器812等)。这些部件可通过总线804或者其他方式连接，图2以通过总线连接为例。其中：
通信接口803可用于终端与其他通信设备，例如网络设备，进行通信。具体的，所述网络设备可以是图1所示的网络设备，也可以是图2和图3所示的基站。具体的，通信接口803可以是长期演进(LTE)(4G)通信接口，也可以是5G或者未来新空口的通信接口。不限于无线通信接口，终端还可以配置有有线的通信接口803，例如局域接入网(local access network，LAN)接口。
发射器806可用于对终端处理器801输出的信号进行发射处理，例如信号调制。接收器805可用于对天线808接收的移动通信信号进行接收处理，例如信号解调。在本申请的一些实施例中，发射器806和接收器805可看作一个无线调制解调器。在终端中，发射器806和接收器805的数量均可以是一个或者多个。天线808可用于将传输线中的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。耦合器807用于将天线808接收到的移动通信信号分成多路，分配给多个的接收器805。
除了图2所示的发射器806和接收器805，终端还可包括其他通信部件，例如GPS模块、蓝牙(bluetooth)模块、无线高保真(wireless fidelity，Wi-Fi)模块等。不限于上述表述的无线通信信号，终端还可以支持其他无线通信信号，例如卫星信号、短波信号等等。不限于无线通信，终端还可以配置有有线网络接口(如LAN接口)来支持有线通信。
所述输入输出模块可用于实现终端和用户/外部环境之间的交互，可主要包括音频输入输出模块810、按键输入模块811以及显示器812等。具体的，所述输入输出模块还可包括：摄像头、触摸屏以及传感器等等。其中，所述输入输出模块均通过用户接口809与终端处理器801进行通信。
存储器802与终端处理器801耦合，用于存储各种软件程序和/或多组指令。具体的，存储器802可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器802可以存储操作系统(下述简称系统)，例如ANDROID，IOS，WINDOWS，或者LINUX等嵌入式操作系统。存储器802还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个终端，一个或多个网络设备进行通信。存储器802还可以存储用户接口程序，该 用户接口程序可以通过图形化的操作界面将应用程序的内容形象逼真的显示出来，并通过菜单、对话框以及按键等输入控件接收用户对应用程序的控制操作。
在本申请的一些实施例中，存储器802可用于存储本申请的一个或多个实施例提供的数据传输方法在终端侧的实现程序。关于本申请的一个或多个实施例提供的数据传输方法的实现，请参考图5所描述的实施例。
终端处理器801可用于读取和执行计算机可读指令。具体的，终端处理器801可用于调用存储于存储器812中的程序，例如本申请的一个或多个实施例提供的数据传输方法在终端侧的实现程序，并执行该程序包含的指令。
可以理解的，终端可以是图1示出的应用场景中网络系统中的终端，可实施为移动设备，移动台(mobile station)，移动单元(mobile unit)，无线单元，远程单元，用户代理，移动客户端等等。
需要说明的，图7所示的终端仅仅是本申请实施例的一种实现方式，实际应用中，终端还可以包括更多或更少的部件，这里不作限制。
请参考图8，图8是本申请实施例提供的一种网络设备的结构示意图。如图8所示，该网络设备可包括：一个或多个网络设备处理器901、存储器902、通信接口903、发射器905、接收器906、耦合器907和天线908。这些部件可通过总线904或者其他式连接，图8以通过总线连接为例。其中：
通信接口903可用于网络设备与其他通信设备，例如终端或其他网络设备，进行通信。具体的，所述终端可以是图7所示的终端。具体的，通信接口903可以是长期演进(LTE)(4G)通信接口，也可以是5G或者未来新空口的通信接口。不限于无线通信接口，网络设备还可以配置有有线的通信接口903来支持有线通信，例如一个网络设备与其他网络设备之间的回程链接可以是有线通信连接。
发射器905可用于对网络设备处理器901输出的信号进行发射处理，例如信号调制。接收器906可用于对天线908接收的移动通信信号进行接收处理。例如信号解调。在本申请的一些实施例中，发射器905和接收器906可看作一个无线调制解调器。在网络设备中，发射器905和接收器906的数量均可以是一个或者多个。天线908可用于将传输线中的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。耦合器907可用于将移动通信号分成多路，分配给多个的接收器906。
存储器902与网络设备处理器901耦合，用于存储各种软件程序和/或多组指令。具体的，存储器902可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器902可以存储操作系统(下述简称系统)，例如uCOS、VxWorks、RTLinux等嵌入式操作系统。存储器902还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个终端设备，一个或多个网络设备进行通信。
网络设备处理器901可用于进行无线信道管理、实施呼叫和通信链路的建立和拆除，并为本控制区内的用户提供小区切换控制等。具体的，网络设备处理器901可包括：管理/通信模块(administration module/communication module，AM/CM)(用于话路交换和信息交换的中心)、基本模块(basic module，BM)(用于完成呼叫处理、信令处理、无线资源 管理、无线链路的管理和电路维护功能)、码变换及子复用单元(transcoder and submultiplexer，TCSM)(用于完成复用解复用及码变换功能)等等。
本申请实施例中，网络设备处理器901可用于读取和执行计算机可读指令。具体的，网络设备处理器901可用于调用存储于存储器902中的程序，例如本申请的一个或多个实施例提供的数据传输方法在网络设备侧的实现程序，并执行该程序包含的指令。
可以理解的，网络设备可以是图1示出的应用场景中网络系统中的网络设备，可实施为基站收发台，无线收发器，一个基本服务集(BSS)，一个扩展服务集(ESS)，NodeB，eNodeB，接入点或TRP等等。
需要说明的，图8所示的网络设备仅仅是本申请实施例的一种实现方式，实际应用中，网络设备还可以包括更多或更少的部件，这里不作限制。
本申请实施例还提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机或处理器上运行时，使得计算机或处理器执行上述任一个方法中的一个或多个步骤。上述信号处理装置的各组成模块如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在所述计算机可读取存储介质中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者通过所述计算机可读存储介质进行传输。所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，该流程可以由计算机程序来指令相关的硬件完成，该程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法实施例的流程。而前述的存储介质包括：ROM或随机存储记忆体RAM、磁碟或者光盘等各种可存储程序代码的介质。

Claims (16)

  1. 一种数据传输方法，其特征在于，所述方法包括：
    终端接收网络设备发送的第一消息，所述第一消息携带第一配置信息，所述第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据；
    所述终端根据所述第一配置信息对所述待解调数据进行解调，所述终端解调承载在所述下行资源上的数据时跳过所述PRS占用的资源。
  2. 根据权利要求1所述的方法，其特征在于，所述第一消息包含以下一个或多个：系统消息SIB2或系统消息SIB22。
  3. 根据权利要求2所述的方法，其特征在于，若所述下行资源包含所述多载波中的锚定载波的物理资源块PRB，所述第一消息包含所述系统消息SIB2；若所述下行资源包含所述多载波中的非锚定载波的PRB，所述第一消息包含所述系统消息SIB22。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述第一消息是所述网络设备在配置为第二模式时向所述终端发送的，所述第二模式下所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据。
  5. 一种数据传输方法，其特征在于，所述方法包括：
    网络设备向终端发送第一消息，所述第一消息携带第一配置信息，所述第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据；所述第一配置信息用于所述终端根据所述第一配置信息对所述待解调数据进行解调；所述终端解调承载在所述下行资源上的数据时跳过所述PRS占用的资源。
  6. 根据权利要求4所述的方法，其特征在于，所述第一消息为以下一个或多个：系统消息SIB2或系统消息SIB22。
  7. 根据权利要求6所述的方法，其特征在于，若所述下行资源包含所述多载波中的锚定载波的物理资源块PRB，所述第一消息包含所述系统消息SIB2；若所述下行资源包含所述多载波中的非锚定载波的PRB，所述第一消息包含所述系统消息SIB22。
  8. 根据权利要求5至7任一项所述的方法，其特征在于，所述网络设备向终端发送第一消息，包括：
    当配置为第二模式时，所述网络设备向终端发送第一消息，所述第二模式下所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据。
  9. 一种终端，其特征在于，包括接收单元和解调单元，其中：
    所述接收单元，用于接收网络设备发送的第一消息，所述第一消息携带第一配置信息，所述第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据；
    所述解调单元，用于根据所述第一配置信息对所述待解调数据进行解调，所述终端解调承载在所述下行资源上的数据时跳过所述PRS占用的资源。
  10. 根据权利要求1所述的终端，其特征在于，所述第一消息包含以下一个或多个：系统消息SIB2或系统消息SIB22。
  11. 根据权利要求10所述的终端，其特征在于，若所述下行资源包含所述多载波中的锚定载波的物理资源块PRB，所述第一消息包含所述系统消息SIB2；若所述下行资源包含所述多载波中的非锚定载波的PRB，所述第一消息包含所述系统消息SIB22。
  12. 根据权利要求9至11任一项所述的终端，其特征在于，所述第一消息是所述网络设备在配置为第二模式时向所述终端发送的，所述第二模式下所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据。
  13. 一种网络设备，其特征在于，包括处理单元和发送单元，其中：
    所述处理单元，用于确定第一消息；
    所述发送单元，用于向终端发送所述第一消息，所述第一消息携带第一配置信息，所述第一配置信息指示定位参考信号PRS在下行资源上被配置的资源位置；所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据；所述第一配置信息用于所述终端根据所述第一配置信息对所述待解调数据进行解调；所述终端解调承载在所述下行资源上的数据时跳过所述PRS占用的资源。
  14. 根据权利要求13所述的网络设备，其特征在于，所述第一消息为以下一个或多个：系统消息SIB2或系统消息SIB22。
  15. 根据权利要求14所述的网络设备，其特征在于，若所述下行资源包含所述多载波中的锚定载波的物理资源块PRB，所述第一消息包含所述系统消息SIB2；若所述下行资源包含所述多载波中的非锚定载波的PRB，所述第一消息包含所述系统消息SIB22。
  16. 根据权利要求13至15任一项所述的网络设备，其特征在于，所述发送单元，具体用于当配置为第二模式时，向终端发送所述第一消息，所述第二模式下所述下行资源上除所述PRS占用的资源之外的资源用于承载待解调数据。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114698097A (zh) * 2020-12-31 2022-07-01 大唐移动通信设备有限公司 定位方法、设备及计算机可读存储介质

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111182579B (zh) * 2019-03-26 2022-04-29 维沃移动通信有限公司 定位测量信息上报方法、终端和网络设备
US11368816B2 (en) 2020-04-17 2022-06-21 Qualcomm Incorporated Network-inferred synchronization for positioning measurements
WO2024165473A1 (en) 2023-02-06 2024-08-15 Continental Automotive Technologies GmbH Methods to coordinate sidelink positioning reference signal transmission by user equipments

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220802A (zh) * 2012-01-19 2013-07-24 中兴通讯股份有限公司 下行数据处理方法及装置
CN103875219A (zh) * 2013-12-13 2014-06-18 华为技术有限公司 干扰协调方法、装置和系统
WO2017142725A2 (en) * 2016-02-16 2017-08-24 Qualcomm Incorporated Positioning signal techniques for narrowband devices
CN107113569A (zh) * 2015-01-26 2017-08-29 英特尔Ip公司 提高水平和垂直定位准确性的设备和方法
US9955295B1 (en) * 2017-04-19 2018-04-24 Sprint Spectrum L.P. Use of positioning reference signal configuration as indication of operational state of a cell

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101616360B (zh) * 2009-07-24 2012-05-09 中兴通讯股份有限公司 一种定位参考信号的发送方法及系统
US10334554B2 (en) * 2015-03-06 2019-06-25 Lg Electronics Inc. Reference signal reception method in wireless communication system, and device for same
WO2016153253A1 (ko) * 2015-03-26 2016-09-29 엘지전자 주식회사 무선 통신 시스템에서 위치 결정을 위한 측정 결과 보고 방법 및 이를 위한 장치
CN106304328B (zh) * 2015-06-01 2020-10-16 索尼公司 无线通信系统中的电子设备和无线通信方法
ES2923281T3 (es) * 2016-04-01 2022-09-26 Samsung Electronics Co Ltd Procedimiento y aparato para la coexistencia de las comunicaciones dispositivo a dispositivo y las comunicaciones celulares en un sistema de comunicaciones móviles
WO2017184865A1 (en) * 2016-04-20 2017-10-26 Convida Wireless, Llc Configurable reference signals
US10547421B2 (en) * 2016-09-30 2020-01-28 Qualcomm Incorporated Scheduling for positioning reference signal (PRS) in narrowband-internet of things (NB-IoT)
CN112771394A (zh) * 2018-08-03 2021-05-07 瑞典爱立信有限公司 用于参考信号的动态配置的方法
CN112567676B (zh) * 2018-08-09 2024-03-01 Lg 电子株式会社 用于在支持nb-iot的无线通信系统中操作终端和基站的方法以及支持的装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220802A (zh) * 2012-01-19 2013-07-24 中兴通讯股份有限公司 下行数据处理方法及装置
CN103875219A (zh) * 2013-12-13 2014-06-18 华为技术有限公司 干扰协调方法、装置和系统
CN107113569A (zh) * 2015-01-26 2017-08-29 英特尔Ip公司 提高水平和垂直定位准确性的设备和方法
WO2017142725A2 (en) * 2016-02-16 2017-08-24 Qualcomm Incorporated Positioning signal techniques for narrowband devices
US9955295B1 (en) * 2017-04-19 2018-04-24 Sprint Spectrum L.P. Use of positioning reference signal configuration as indication of operational state of a cell

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"On NPRS performance", 3GPP TSG RAN WG1 MEETING #92BIS R1-1804896, 20 April 2018 (2018-04-20), XP051414234 *
ERICSSON: "Email discussion report [96#51][LTE/eNB-IoT] Positioning procedures", 3GPP TSG-RAN2 MEETING #97 R2-1701042, 17 February 2017 (2017-02-17), XP051211779 *
See also references of EP3833082A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114698097A (zh) * 2020-12-31 2022-07-01 大唐移动通信设备有限公司 定位方法、设备及计算机可读存储介质

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