CN109257816B

CN109257816B - Positioning method and related equipment

Info

Publication number: CN109257816B
Application number: CN201710565598.2A
Authority: CN
Inventors: 史桢宇; 王艺
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2023-12-08
Anticipated expiration: 2037-07-12
Also published as: CN109257816A

Abstract

The embodiment of the invention discloses a positioning method and related equipment, wherein the method comprises the following steps: the enhanced service mobile positioning center E-SMLC receives N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer; the E-SMLC determines the location of the terminal based at least on the N first parameters. By adopting the embodiment of the invention, the positioning precision can be improved.

Description

Positioning method and related equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a positioning method and a related device.

Background

The main challenges of the positioning technology in the wireless network are brought by mobility of User Equipment (UE) and change of external environment, and the quality of the positioning technology is mainly measured by two indexes of positioning accuracy and time of positioning calculation. The current positioning technology mainly comprises three types: time of Arrival (TOA) techniques, time difference of Arrival (time difference of Arrival, TDOA) techniques, and angular direction of Arrival (direction of Arrival, DOA) techniques. The TOA is that the UE measures the distance from the UE to three Base Stations (BS), and then the specific position of the UE is determined through three-point convergence by combining the position coordinates of the three BSs; in the actual operation process, the distances from the UE to the three BSs are obtained according to the product of the propagation delay from the three BSs to the UE and the speed of light, so that the measurement accuracy is affected by factors such as sampling errors, synchronization errors between the BS and the UE, and the like. The TDOA is also realized by a distance measuring method, and is different from the TOA in that a main BS and two secondary BSs are determined from the three BSs, then the difference value of the distances from the two secondary BSs to the main BS is calculated respectively, and then the position of the UE is obtained by a hyperbolic positioning method; TDOA can avoid synchronization errors of the UE, so the effect is somewhat more accurate than the TOA approach. The DOA is located by information of the measured angle.

The positioning accuracy of the above three positioning technologies is more than ten meters, and it is not possible to meet the requirement of the fifth Generation mobile communication technology (5 th-Generation, 5G) on the positioning accuracy, and how to improve the positioning accuracy is a technical problem under study by those skilled in the art.

Disclosure of Invention

The embodiment of the invention provides a positioning method and related equipment, which can improve positioning accuracy.

In a first aspect, an embodiment of the present invention provides a positioning method, including: firstly, an enhanced services mobile location center E-SMLC receives N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer; the E-SMLC then determines the location of the terminal based at least on the N first parameters.

By performing the above steps, the UE (i.e., the terminal) or the network side device (e.g., the base station) transmits the measured first location parameter characterizing the relative location to the enhanced services mobile positioning center, and simultaneously transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through the PSO algorithm to determine the location of the UE, so that the determined location of the UE is more accurate.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the receiving, by the enhanced services mobile location center SMLC, N first parameters includes: the E-SMLC receives N first parameters sent by the N network side devices, wherein each network side device in the N network side devices is used for sending one first parameter.

With reference to the first aspect, or any one of the foregoing possible implementation manners of the first aspect, in a second possible implementation manner of the first aspect, the enhanced services mobile positioning center E-SMLC receives N first parameters, including: E-SMLC receives N first parameters sent by the terminal.

With reference to the first aspect, or any one of the foregoing possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the first location parameter is at least one of a measured distance and an angle between the terminal and the network side device.

With reference to the first aspect, or any one of the foregoing possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, before the determining, by the E-SMLC, a location of the terminal according to at least the N first parameters, the method further includes: the E-SMLC receives M second parameters, wherein each second parameter in the M second parameters corresponds to one reference device in M reference devices, the reference devices corresponding to different second parameters are different, the second parameters comprise second position parameters and second error parameters, the second position parameter in any one second parameter characterizes one reference device corresponding to any one second parameter, the relative position between the second position parameter in any one second parameter and M-1 reference devices except one reference device corresponding to any one second parameter in the M reference devices is used for characterizing the error of the second position parameter in any one second parameter, the terminal is one reference device in the M reference devices, and M is a positive integer; in addition, the E-SMLC determines the position of the terminal at least according to the N first parameters, and the E-SMLC comprises the following steps: the E-SMLC determines the position of the terminal according to the N first parameters and the M second parameters.

With reference to the first aspect, or any one of the foregoing possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the receiving, by the E-SMLC, M second parameters includes: the E-SMLC receives M second parameters sent by M reference devices, and each second parameter is sent by the reference device corresponding to the second parameter.

With reference to the first aspect, or any one of the foregoing possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the receiving, by the E-SMLC, M second parameters includes: the E-SMLC receives M second parameters sent by fourth equipment, wherein the fourth equipment is used for acquiring the M second parameters from the M reference equipment, and any one of the M reference equipment has the second parameter corresponding to the any one reference equipment.

In a second aspect, an embodiment of the present invention provides a positioning method, including: firstly, a measuring device generates a first parameter, wherein the first parameter comprises a first position parameter and a first error parameter, the first position parameter characterizes the relative position of a terminal and network side equipment, and the first error parameter is used for reflecting the error of the first position parameter; the measuring equipment is the terminal or the network side equipment; the measurement device then transmits the generated first parameter to an enhanced services mobile location center, E-SMLC, which is used by the E-SMLC to determine the location of the terminal.

With reference to the second aspect, in a first possible implementation manner of the second aspect, when the measurement device is the terminal; the measurement device generates a first parameter comprising: the measuring device generates N first parameters, each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of the terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer.

With reference to the second aspect, or any one of the foregoing possible implementation manners of the second aspect, in a second possible implementation manner of the second aspect, the method further includes: the measuring equipment generates a second parameter, wherein the second parameter comprises a second position parameter and a second error parameter, the second position parameter represents the relative position between the measuring equipment and M-1 reference equipment, the second error parameter is standard to the error of the second position parameter, the measuring equipment is one of the M reference equipment except the M-1 reference equipment, and M is a positive integer; the measurement device sends the second parameter to the E-SMLC, the second parameter being used by the E-SMLC to determine the location of the terminal.

With reference to the second aspect, or any one of the foregoing possible implementation manners of the second aspect, in a third possible implementation manner of the second aspect, the sending, by the measurement device, the second parameter to the E-SMLC includes: the measurement device sends the second parameter to other devices, so that the other devices send the second parameter to the E-SMLC, and the other devices are one reference device of the M reference devices or are network side devices providing service cells for the M reference devices.

In a third aspect, an embodiment of the present invention provides a positioning method, including: firstly, generating a second parameter by a reference device, wherein the reference device is one reference device in M reference devices, the second parameter comprises a second position parameter and a second error parameter, the second position parameter represents the relative position between the one reference device and M-1 reference devices except the one reference device in the M reference devices, the second error parameter represents the error of the second position parameter, and M is a positive integer; the reference device then sends the second parameter to the enhanced services mobile location center E-SMLC, the second parameter being used by the E-SMLC to determine the location of the terminal.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the sending, by the reference device, a second parameter to the enhanced services mobile location center E-SMLC includes: the reference device sends the second parameter to other devices, so that the other devices send the second parameter to the E-SMLC, and the other devices are one reference device of the M reference devices or are network side devices providing service cells for the M reference devices.

With reference to the third aspect, or any one of the foregoing possible implementation manners of the third aspect, in a second possible implementation manner of the third aspect, before the generating, by the reference device, a second parameter, the method further includes: firstly, the reference equipment receives a notification message sent by the E-SMLC, wherein the notification message comprises the identification of the M reference equipment; the reference device then determines the relative position between the one reference device and the M-1 reference devices based on the identity of the M reference devices.

In a fourth aspect, embodiments of the present invention provide an enhanced services mobile location center, E-SMLC, comprising a processor, a transceiver, and a memory, the memory for storing instructions, the processor for invoking the instructions in the memory to perform the operations of: firstly, receiving N first parameters through the transceiver, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer; then, the position of the terminal is determined at least according to the N first parameters.

By performing the above operations, the UE (i.e., the terminal) or the network side device (e.g., the base station) transmits the measured first location parameter characterizing the relative location to the enhanced services mobile positioning center, and simultaneously transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through the PSO algorithm to determine the location of the UE, so that the determined location of the UE is more accurate.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the receiving, by the transceiver, N first parameters is specifically: and receiving N first parameters sent by the N network side devices through the transceiver, wherein each network side device in the N network side devices is used for sending one first parameter.

With reference to the fourth aspect, or any one of the foregoing possible implementation manners of the fourth aspect, in a second possible implementation manner of the fourth aspect, the receiving, by the transceiver, N first parameters is specifically: n first parameters sent by the terminal are received through the transceiver.

With reference to the fourth aspect, or any one of the foregoing possible implementation manners of the fourth aspect, in a third possible implementation manner of the fourth aspect, the first location parameter is at least one of a measured distance and an angle between the terminal and the network side device.

With reference to the fourth aspect, or any one of the foregoing possible implementation manners of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, before the processor determines the location of the terminal according to at least the N first parameters, the processor is further configured to: receiving, by the transceiver, M second parameters, each of the M second parameters corresponding to one of M reference devices, the different reference devices corresponding to different second parameters being different, the second parameters including a second position parameter and a second error parameter, the second position parameter in any one of the second parameters characterizing a relative position between the one of the M reference devices corresponding to the any one of the second parameters and M-1 reference devices other than the one of the M reference devices corresponding to the any one of the second parameters, the second error parameter in any one of the second parameters being used to characterize an error of the second position parameter in the any one of the second parameters, the terminal being one of the M reference devices, M being a positive integer; in addition, the processor determines the position of the terminal according to at least the N first parameters, specifically: the processor determines the location of the terminal based on the N first parameters and the M second parameters.

With reference to the fourth aspect, or any one of the foregoing possible implementation manners of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the receiving, by the transceiver, M second parameters is specifically: m second parameters sent by M reference devices are received through the transceiver, and each second parameter is sent by the reference device corresponding to the second parameter.

With reference to the fourth aspect, or any one of the foregoing possible implementation manners of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the receiving, by the transceiver, M second parameters is specifically: and receiving M second parameters sent by a fourth device through the transceiver, wherein the fourth device is used for acquiring the M second parameters from the M reference devices, and any one of the M reference devices has the second parameter corresponding to the any one reference device.

In a fifth aspect, an embodiment of the present invention provides a measurement device comprising a processor, a transceiver, and a memory, the memory for storing instructions, the processor for invoking the instructions in the memory to perform the following: firstly, generating a first parameter, wherein the first parameter comprises a first position parameter and a first error parameter, the first position parameter characterizes the relative position of a terminal and network side equipment, and the first error parameter is used for reflecting the error of the first position parameter; the measuring equipment is the terminal or the network side equipment; the generated first parameter is then transmitted by the transceiver to an enhanced services mobile location center, E-SMLC, which determines the location of the terminal.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, when the measurement device is the terminal; the first parameter generation method specifically comprises the following steps: generating N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer.

With reference to the fifth aspect, or any one of the foregoing possible implementation manners of the fifth aspect, in a second possible implementation manner of the fifth aspect, the processor is further configured to: generating a second parameter, wherein the second parameter comprises a second position parameter and a second error parameter, the second position parameter characterizes the relative position between the measuring equipment and M-1 reference equipment, the second error parameter is standardized to the error of the second position parameter, the measuring equipment is one of the M reference equipment except the M-1 reference equipment, and M is a positive integer; the second parameter is sent by the transceiver to the E-SMLC, the second parameter being used by the E-SMLC to determine the location of the terminal.

With reference to the fifth aspect, or any one of the foregoing possible implementation manners of the fifth aspect, in a third possible implementation manner of the fifth aspect, the sending, by the transceiver, the second parameter to the E-SMLC is specifically: and sending the second parameter to other devices through the transceiver so that the other devices send the second parameter to the E-SMLC, wherein the other devices are one reference device in the M reference devices or network side devices providing service cells for the M reference devices.

In a sixth aspect, an embodiment of the present invention provides a reference device, the E-SMLC including a processor, a transceiver, and a memory, the memory for storing instructions, the processor for invoking the instructions in the memory to perform the operations of: firstly, generating a second parameter, wherein the second parameter is one of M reference devices, the second parameter comprises a second position parameter and a second error parameter, the second position parameter represents the relative position between the one reference device and M-1 reference devices except the one reference device, the second error parameter represents the error of the second position parameter, and M is a positive integer; the second parameter is then transmitted by the transceiver to an enhanced services mobile location center, E-SMLC, which is used by the E-SMLC to determine the location of the terminal.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the sending, by the transceiver, the second parameter to the enhanced services mobile location center E-SMLC is specifically: and sending the second parameter to other devices through the transceiver so that the other devices send the second parameter to the E-SMLC, wherein the other devices are one reference device in the M reference devices or network side devices providing service cells for the M reference devices.

With reference to the sixth aspect, or any one of the foregoing possible implementation manners of the sixth aspect, in a second possible implementation manner of the sixth aspect, before the generating, by the processor, the second parameter, the processor is further configured to: receiving, by the transceiver, a notification message sent by the E-SMLC, the notification message including the identities of the M reference devices; then, the relative position between the one reference device and the M-1 reference devices is determined based on the identification of the M reference devices.

In a seventh aspect, an embodiment of the present invention provides an enhanced services mobile positioning center E-SMLC, where the E-SMLC includes a first receiving unit and a first determining unit, where the first receiving unit is configured to receive N first parameters, each of the N first parameters includes a first location parameter and a first error parameter, the N first location parameters included in the N first parameters characterize a relative location between a terminal and N network side devices, each of the N first location parameters is configured to characterize a relative location between the terminal and one of the N network side devices, and the first error parameter included in any one of the first parameters is configured to embody an error of the first location parameter included in any one of the N first parameters, where N is a positive integer; the first determining unit is configured to determine a location of the terminal at least according to the N first parameters.

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the first receiving unit receives N first parameters, specifically: and receiving N first parameters sent by the N network side devices, wherein each network side device in the N network side devices is used for sending one first parameter.

With reference to the seventh aspect, or any one of the foregoing possible implementation manners of the seventh aspect, in a second possible implementation manner of the seventh aspect, the first receiving unit receives N first parameters, specifically: E-SMLC receives N first parameters sent by the terminal.

With reference to the seventh aspect, or any one of the foregoing possible implementation manners of the seventh aspect, in a third possible implementation manner of the seventh aspect, the first location parameter is at least one of a measured distance and an angle between the terminal and the network side device.

With reference to the seventh aspect, or any one of the foregoing possible implementation manners of the seventh aspect, in a fourth possible implementation manner of the seventh aspect, the E-SMLC further includes a second receiving unit, where before the first determining unit determines, according to at least the N first parameters, a position of the terminal, the second receiving unit is configured to receive M second parameters, each of the M second parameters corresponds to one of M reference devices, the different second parameters corresponds to a reference device different from the reference device, the second parameters include a second position parameter and a second error parameter, the second position parameter in any one of the second parameters characterizes a reference device corresponding to the any one second parameter, a relative position between M-1 reference devices other than the one of the M reference devices corresponding to the any one second parameter, the second error parameter in any one of the M second parameters is used to characterize an error of the second position parameter in any one of the second parameters, the terminal is an integer number M of reference devices, and the second error parameter in any one of the M reference devices is positive; in addition, the first determining unit determines the position of the terminal according to at least the N first parameters, specifically: and determining the position of the terminal according to the N first parameters and the M second parameters.

With reference to the seventh aspect, or any one of the foregoing possible implementation manners of the seventh aspect, in a fifth possible implementation manner of the seventh aspect, the second receiving unit receives M second parameters, specifically: and receiving M second parameters sent by the M reference devices, wherein each second parameter is sent by the reference device corresponding to the second parameter.

With reference to the seventh aspect, or any one of the foregoing possible implementation manners of the seventh aspect, in a sixth possible implementation manner of the seventh aspect, the second receiving unit receives M second parameters, specifically: and receiving M second parameters sent by fourth equipment, wherein the fourth equipment is used for acquiring the M second parameters from the M reference equipment, and any one of the M reference equipment has the second parameters corresponding to the any one reference equipment.

In an eighth aspect, an embodiment of the present invention provides a measurement device, where the measurement device includes a first generating unit and a first sending unit, where the first generating unit is configured to generate a first parameter, where the first parameter includes a first location parameter and a first error parameter, where the first location parameter characterizes a relative location between a terminal and a network side device, and the first error parameter is used to embody an error of the first location parameter; the measuring equipment is the terminal or the network side equipment; the first sending unit is configured to send the generated first parameter to an enhanced services mobile location center E-SMLC, where the generated first parameter is used by the E-SMLC to determine a location of the terminal.

With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, when the measurement device is the terminal; the first generating unit generates a first parameter, specifically: generating N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer.

With reference to the eighth aspect, or any one of the foregoing possible implementation manners of the eighth aspect, in a second possible implementation manner of the eighth aspect, the measurement device further includes a second generating unit and a second sending unit, where the second generating unit is configured to generate a second parameter, where the second parameter includes a second position parameter and a second error parameter, the second position parameter characterizes a relative position between the measurement device and M-1 reference devices, the second error parameter is standard for an error of the second position parameter, and the measurement device is a reference device other than the M-1 reference devices among the M reference devices, and M is a positive integer; the second sending unit is configured to send the second parameter to the E-SMLC, where the second parameter is used by the E-SMLC to determine a location of the terminal.

With reference to the eighth aspect, or any one of the foregoing possible implementation manners of the eighth aspect, in a third possible implementation manner of the eighth aspect, the sending, by the second sending unit, the second parameter to the E-SMLC includes: and sending the second parameter to other devices, so that the other devices send the second parameter to the E-SMLC, wherein the other devices are one of the M reference devices or network side devices providing service cells for the M reference devices.

In a ninth aspect, an embodiment of the present invention provides a reference device, where the reference device includes a third generating unit and a third sending unit, where the third generating unit is configured to generate a second parameter, where the reference device is one of M reference devices, and the second parameter includes a second location parameter and a second error parameter, where the second location parameter characterizes a relative location between the one reference device and M-1 reference devices of the M reference devices other than the one reference device, where the second error parameter characterizes an error of the second location parameter, and where M is a positive integer; the third sending unit is configured to send the second parameter to an enhanced services mobile location center E-SMLC, where the second parameter is used by the E-SMLC to determine a location of the terminal.

With reference to the ninth aspect, in a first possible implementation manner of the ninth aspect, the third sending unit sends the second parameter to the enhanced services mobile positioning center E-SMLC, specifically: the reference device sends the second parameter to other devices, so that the other devices send the second parameter to the E-SMLC, and the other devices are one reference device of the M reference devices or are network side devices providing service cells for the M reference devices.

With reference to the ninth aspect, or any one of the foregoing possible implementation manners of the ninth aspect, in a second possible implementation manner of the ninth aspect, the reference device further includes a third receiving unit and a second determining unit, where the third receiving unit is configured to receive, before the third generating unit generates the second parameter, a notification message sent by the E-SMLC, where the notification message includes identities of the M reference devices; the second determining unit is used for determining the relative positions between the reference device and the M-1 reference devices according to the identification of the M reference devices.

In yet another possible implementation manner of the above aspects, the first error parameter is obtained by training according to at least one parameter related to ranging in a history.

In yet another possible implementation manner of the above aspects, the M reference devices access the same serving cell.

In a tenth aspect, an embodiment of the present invention provides a communication system, where the communication system includes an E-SMLC and a measurement device, where the E-SMLC is an E-SMLC described in the fourth aspect, or any possible implementation manner of the fourth aspect, or the seventh aspect, or any possible implementation manner of the seventh aspect; the measurement device is the measurement device described in the fifth aspect, or any possible implementation manner of the fifth aspect, or the eighth aspect, or any possible implementation manner of the eighth aspect.

In an eleventh aspect, embodiments of the present invention provide a storage medium for storing instructions that, when executed on a processor of an E-SMLC, perform the method described in the first aspect or any of the possible implementations of the first aspect; or instructions which, when run on a processor of a measurement device, performs the method described in the second aspect or any possible implementation of the second aspect; or the instructions, when run on a processor of a reference device, the reference device performs the method described in the third aspect or any possible implementation of the third aspect.

In a twelfth aspect, embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method described in the first aspect, or any possible implementation of the first aspect, or the second aspect, or any possible implementation of the second aspect, the third aspect, or any possible implementation of the third aspect.

By implementing the embodiment of the invention, the UE (i.e. the terminal) or the network side equipment (e.g. the base station) transmits the measured first position parameter representing the relative position to the enhanced service mobile positioning center, and simultaneously transmits the first error parameter representing the error of the first position parameter, and then the enhanced service mobile positioning center processes the first position parameter and the first error parameter through a PSO algorithm to determine the position of the UE, so that the determined position of the UE is more accurate.

Drawings

In order to more clearly describe the embodiments of the present invention or the technical solutions in the background art, the following description will describe the drawings that are required to be used in the embodiments of the present invention or the background art.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present invention;

FIG. 2 is a flow chart of a positioning method according to an embodiment of the present invention;

FIG. 3 is a flow chart of another positioning method according to an embodiment of the present invention;

FIG. 4 is a flow chart of yet another positioning method according to an embodiment of the present invention;

FIG. 5 is a schematic view of a positioning scenario provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram showing a simulation result according to an embodiment of the present invention;

FIG. 7 is a flow chart of yet another positioning method according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an E-SMLC structure according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a measuring apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a reference device according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of an E-SMLC structure according to an embodiment of the present invention;

FIG. 12 is a schematic view of a measuring apparatus according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a reference device according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a communication system provided in an embodiment of the present invention, where the communication system includes an enhanced services mobile location center (Enhanced Serving Mobile Location Centre, E-SMLC) 101, a terminal 102, and a network side device 103, and the communication system may further include a reference device 104 or other devices; alternatively, the devices in The communication system 10 may communicate using a WIreless communication technology, for example, the WIreless communication technology may be a second Generation mobile communication technology (The 2nd-Generation, 2G), a third Generation mobile communication technology (The 3rd-Generation, 3G), a long term evolution (long term evolution, LTE), a fourth Generation mobile communication technology (The 4th Generation mobile communication,4G), a fifth Generation mobile communication technology (The 5th-Generation, 5G), or a WIreless-Fidelity (WI-FI) technology, or a bluetooth technology, or zigbee technology, or other existing communication technology, or a later developed communication technology, and so on.

The enhanced services mobile positioning center 101, the network side device 103 of the terminal 102, and the reference device 104 are network elements in the communication system, where the network side device 103 may be a base station (eNB), a base station (gNB), a base station (base station), and so on. The enhanced services mobile positioning center 101 may be one network-side device or one module of one network-side device, for example, described later to N network-side devices, which may be a module of one network-side device of the N network-side devices. The terminal may be a handheld device (e.g., a cell phone, a tablet computer, a palm computer, etc.), a vehicle-mounted device (e.g., an automobile, a bicycle, an electric car, an airplane, a ship, etc.), a wearable device (e.g., a smart watch (e.g., iWatch, etc.), a smart bracelet, a pedometer, etc.), a smart home device (e.g., a refrigerator, a television, an air conditioner, an ammeter, etc.), a smart robot, a workshop device, other processing devices capable of being connected to a wireless modem, and various forms of User Equipment (UE), a Mobile Station (MS), a terminal (terminal), a terminal device (Terminal Equipment), etc., which will be described later for ease of understanding by way of example with respect to the User Equipment or UE. Alternatively, the network element type of the reference device 103 may be a user equipment UE, and M reference devices described later may specifically refer to M UEs, and the terminal 102 is one UE of the M UEs; the network element type of the reference device 103 may also be a network side device (e.g., a base station), and a part of M reference devices described later may be a user equipment UE and another part may be a network side device.

Referring to fig. 2, fig. 2 is a flow chart of a positioning method according to an embodiment of the present invention, which may be implemented based on the communication system shown in fig. 1, and the positioning method includes, but is not limited to, the following steps:

step S201: the user equipment UE sends first indication information to the enhanced services mobile positioning center.

Specifically, the first indication information is used to indicate the positioning mode supported by the UE, for example, indicate that the UE can support the positioning mode such as DOA, TDOA, TOA, and possibly indicate other information. It can be appreciated that the positioning of the UE can be UE-initiated or enhanced services mobile positioning center initiated; if the UE initiates, the first indication information may be actively sent by the UE to the enhanced services mobile positioning center, and if the UE initiates, the first indication information may be triggered by the enhanced services mobile positioning center to be sent by the UE, for example, the enhanced services mobile positioning center sends a notification message to the UE to instruct the UE to send the first indication information.

Step S202: the enhanced services mobile positioning center receives the first indication information.

Specifically, the enhanced services mobile positioning center may determine a positioning manner supported by the UE according to the first indication information, so as to calculate a position of the UE by using the manner supported by the UE later. Optionally, the first indication information may include an identification bit, which is used to indicate whether to use the manner of steps S203 to S208 to locate the UE, for example, when the value of the identification bit is 1, the identification bit is used to indicate to use the manner of steps S203 to S208 to locate the UE; when the value of the identification bit is 0, the identification bit is used to indicate that the UE is located using the prior art approach.

Step S203: the enhanced services mobile positioning center sends assistance information to the UE.

Specifically, the auxiliary information may include a number (or "identifier") of a cell in which the UE is located, a number of each network-side device (e.g., a Base Station (BS)) that transmits an RS pilot signal, configuration information of a Reference Signal (RS) on each network-side device, and the like. It will be appreciated that the RS pilot signal may be used to measure the relative position (including the relative distance, the relative angle, etc.) between two devices, for example, the network side device sends the pilot signal to the UE, and the UE may calculate the relative distance between the UE and the network side device according to the time and the speed of the pilot signal transmission after receiving the pilot signal.

Step S204: the UE receives the assistance information.

Specifically, the UE may determine, according to the number of the network side device in the assistance information, which network side devices are to be used to measure the distance, for example, assuming that the network side device indicated in the assistance information is encoded with bs_1, bs_2, bs_3, the UE may determine that the relative positions between the network side device numbered bs_1 and the network side device numbered bs_2 and the network side device numbered bs_3 need to be measured, and may use pilot signals to perform measurement when measuring. For convenience of the following description, the number of network side devices indicated by the network side device numbers together may be referred to as N, that is, the number indicates that the UE needs to measure the relative positions between the N network side devices.

The relative position in the embodiment of the invention can be information such as distance, angle and the like, and is optional, the relative position refers to distance, the relative position refers to angle, the relative position refers to distance and angle, and other alternatives exist.

Step S205: the UE measures the relative position with the N network-side devices.

Specifically, there may be measurement errors in the relative positions between the UE and the N network side devices, we can consider that the possible errors are gaussian distribution with zero mean, and then the degree of expansion of the errors can be measured by the variance value or standard variance value, and then by the variance σ ² To measure the degree of expansion as an example description; alternatively, the variance may be an empirical value obtained by long-term statistics; alternatively, the variance may be a training value obtained by training in real time according to the latest measurement record during the current measurement; other ways of obtaining the variance are also possible, and the specific way by which the variance is obtained is not limited herein; alternatively, due toThe distance between the UE and the N network-side devices is measured by the UE, and thus the UE may also be referred to as a measuring device.

Step S206: the UE sends N first parameters to the enhanced services mobile positioning center.

Specifically, each of the N first parameters includes a first location parameter and a first error parameter, where the N first location parameters include N first location parameters that characterize a relative location of the UE and N network side devices, each of the N first location parameters is used to characterize a relative location of the UE and one of the N network side devices, and the first error parameter included in any one of the N first parameters is used to embody an error of the first location parameter included in the any one of the N first parameters, e.g., a variance σ ² N is 1 or more. For example, N is equal to 3, where N is specifically referred to as network side device 1, network side device 2 and network side device 3, and then the first location parameter included in the first parameter sent by the network side device 1 characterizes the measured relative location between the network side device 1 and the UE, and the first error parameter included in the first parameter sent by the network side device 1 characterizes the error of the first location parameter included in the first parameter sent by the network side device; the first position parameter included in the first parameter sent by the network side device 2 characterizes the measured relative position between the network side device 2 and the UE, and the first error parameter included in the first parameter sent by the network side device 2 characterizes the error of the first position parameter included in the first parameter sent by the network side device; the first location parameter included in the first parameter sent by the network side device 3 characterizes the measured relative location between the network side device 3 and the UE, and the first error parameter included in the first parameter sent by the network side device 3 characterizes the error of the first location parameter included in the first parameter sent by the network side device.

Step S207: the enhanced services mobile positioning center receives the N first parameters.

Step S208: the enhanced services mobile positioning center determines the location of the UE based at least on the N first parameters.

Specifically, the embodiment of the present invention may determine the location of the UE according to the relative location (i.e. the first location parameter) between the UE and the N network side devices by referring to the principle of DOA, TDOA, TOA, etc., and only use the first error parameter σ representing the relative location error when determining the location of the UE ² . Wherein the first position parameter may be a relative angle, or a relative distance and a relative angle, or other quantities characterizing the relative position; for example, the first location parameter is a relative angle between the UE and the network side device measured by the UE when referring to the DOA, and for example, the first location parameter is a relative distance between the UE and the network side device measured by the UE when referring to the TOA; for another example, the first location parameter when referring to TDOA is a relative distance between the UE and the network side device measured by the UE.

In a first alternative, the enhanced services mobile positioning center uses a particle swarm optimization (Particle Swarm Optimization, PSO) algorithm to operate on a first position parameter and a first error parameter of the N first parameters to determine a position of the UE. For example, the objective function (fit function) of the PSO algorithm may be preconfigured as follows:

In formula 1-1, f ₁ (x) Representing an objective function, x representing one position coordinate in a set of preset position coordinates, x _n，bs Representing the location coordinates of the nth network side device,is a first location parameter, sigma, of a measured representation of a relative location between the device on the n-th network side ² For the first error parameter, d _n (x) Is based on the coordinate position x and the position coordinate x _n，bs The determined intermediate quantity (e.g., d _n (x)＝||x-x _n，bs I) determines the location of the UE from the objective function by determining a set of objects from the set of locations (this set may typically be a cell) such that the objective function f ₁ (x) The minimized location coordinate x is the determined location of the UE.

In the embodiment of the present invention, the UE may determine the location of the UE by referring to the principle of at least one technology of DOA, TDOA and TOA, and at this time, the objective function of the PSO algorithm may be configured as follows:

in formula 2-1, f ₁ (x) Representing an objective function, x representing one position coordinate in a set of preset position coordinates, x _n，bs Representing the location coordinates of the nth network side device,is a first position parameter (obtained according to DOA principle) for representing the relative angle, σ _DOA ² For characterization->Error of (a) and θ _n (x) Is based on the position coordinates x and the position coordinates x _n，bs The determined characterization distance intermediate quantity; />Is a first position parameter (obtained according to the TDOA principle) for representing the relative distance, σ _TDOA ² For characterization->Error of (d) _n (x) Is based on the position coordinates x and the position coordinates x _n，bs Determining an intermediate quantity representing the distance; />Is a first position parameter (obtained according to TOA principle) for representing the relative distance, σ _TOA ² For characterization->Error of (d) _n,UE (x) Is based on the position coordinates x and the position coordinates x _n，bs The determined characterization distance intermediate quantity; omega ₁ For characterising->For f ₁ (x) Degree of influence, ω ₂ For characterising->For f ₁ (x) Degree of influence, ω ₃ For characterization (sigma) _N (d _n,UE x) -dn, UE 2)/σtoa2 on f1x, where ω1, ω2, and ω3 may be fixed values set in advance, or values calculated in real time according to a preset algorithm. The principle of determining the location of the UE from the objective function is to determine a target function f from the set of locations (this set may typically be a cell) ₁ (x) The minimized location coordinate x is the determined location of the UE.

In a second alternative, the enhanced services mobile positioning center uses a PSO algorithm to calculate the N first parameters and the M second parameters to determine the location of the UE, that is, in comparison with the first alternative, the enhanced services mobile positioning center may use the N first parameters and the M second parameters when determining the location of the UE. Optionally, each second parameter of the M second parameters corresponds to one reference device of M reference devices (for example, M UEs), the reference devices corresponding to different second parameters are different, any one second parameter characterizes one reference device corresponding to any one second parameter, and a relative position between the reference device and M-1 reference devices of the M reference devices except for one reference device corresponding to any one second parameter, where M is greater than 1; the UE is one of the M reference devices.

In the first case, the M second parameters may be sent to the enhanced services mobile positioning center for M reference devices corresponding to the M second parameters (one second parameter is sent by each reference device). Referring to fig. 3, fig. 3 is a flow chart of another positioning method according to an embodiment of the invention; first, the enhanced services mobile positioning center sends out a request of positioning capability to a plurality of reference devices, then each reference device feeds back the method of positioning supported by each reference device, and if measurement of U2U (refer to measurement of relative position between two reference devices) is supported, the flag position of U2U is set to be 1. After receiving the information fed back by the reference devices, the enhanced service mobile positioning center selects which reference devices participate in positioning of the reference devices, and the reference devices are generally selected to be relatively close, and meanwhile, the service base station BS is also the same several reference devices, the selected several reference devices can be described as M reference devices, then auxiliary information is sent to the M reference devices, the auxiliary information includes the numbers of the service cells of the M reference devices, or the numbers of the base stations providing the service cells for the M reference devices, and so on. Optionally, the auxiliary information is further added to an item, that is, the number of each reference device in the M reference devices, so that after receiving the auxiliary information, a reference device in the M reference devices can know with which reference devices to perform U2U measurement, and obtain the relative position information of the reference device and the reference devices. Each of the M reference devices may then report the measured relative position information (i.e., the second position parameter) to the enhanced services mobile positioning center, and may report information indicative of an error in the relative position (i.e., the second error information) to the enhanced services mobile positioning center, i.e., each reference device may send a second parameter including the second position parameter and the second error parameter to the enhanced services mobile positioning center.

In the second case, the M second parameters may also be sent to the enhanced services mobile positioning center for one of the M reference devices (M-1 reference devices other than the one reference device each send its own second parameters to the one reference device, which may also be referred to as a fourth reference device). Referring to fig. 4, fig. 4 is a flow chart of another positioning method according to an embodiment of the invention; first, the enhanced services mobile positioning center sends out a request of positioning capability to a plurality of reference devices, then each reference device feeds back the method of positioning supported by each reference device, and if measurement of U2U (refer to measurement of relative position between two reference devices) is supported, the flag position of U2U is set to be 1. After receiving the information fed back by the reference devices, the enhanced service mobile positioning center selects which reference devices participate in positioning of the reference devices, and the reference devices are generally selected to be relatively close, meanwhile, the service base station BS is also the same several reference devices, the selected several reference devices can be described as M reference devices, and in addition, one reference device is determined as a main reference device in the M reference devices. The primary reference device is then informed of the auxiliary information, and likewise the numbers (or "identities") of all of the M reference devices need to be added to the auxiliary information. After receiving the auxiliary information, the main reference device informs the other M-1 reference devices that the measurement of U2U needs to be performed, and each reference device sends information of the relative position between itself and other reference devices (namely second position information) and information representing the error of the relative position (namely second error information) to the main reference device after the measurement of U2U is performed, namely each reference device except the main reference device in the M reference devices sends a second parameter to the main reference device. Of course, the main reference device also performs U2U measurement, and then the main UE collects the second parameters of the M reference devices and uniformly reports the second parameters to the enhanced service mobile positioning center.

In a third case, the M second parameters may also be sent to the enhanced services mobile positioning center by the base station of the serving cell of the M reference devices, where the method refers to the second case, where the M reference devices each first send their second parameters to an access network device (e.g., a base station) of the serving cell, and then the access network device (also referred to as a fourth device) sends the M second parameters sent by the M reference devices to the enhanced services mobile positioning center. In the embodiment of the present invention, the enhanced services mobile positioning center may be the access network device, or may be one network side device of the N network side devices.

Accordingly, the enhanced services mobile positioning center receives the M second parameters, and then determines the location of the UE according to the N first parameters and the M second parameters, where the determining concept includes, but is not limited to, the following two methods:

thought one: the enhanced services mobile positioning center may determine the position coordinate of each reference device in the M reference devices according to the principle of the first alternative, and since the position coordinate of each reference device needs to be further adjusted, the position coordinate of the M reference devices determined according to the principle of the first alternative belongs to the transitional position coordinate, and for convenience of subsequent description, the transitional position coordinate of the mth reference device in the M reference devices may be expressed as x _m Position coordinate x _m′ Representing the transition position coordinates of one of the M reference devices that is different from the reference device other than the mth reference device, there are several known position coordinates within a certain range around the transition position coordinates of each reference device, and for convenience of description, it may be said that there are I position coordinates within a certain range around the transition position coordinates of the mth reference device (I is a positive integer, the number of straight position coordinates present within a certain range around the transition position coordinates of different reference devices may be different or the same), and the ith position coordinate in the I position coordinates is x _{m_i} . An objective function of the PSO algorithm may be reconfigured as follows:

f ₄ (x _{m_i} )＝f ₂ (x _{m_i} )+f ₃ (x _{m_i} ) 3-3

in formulas 3-1, 3-2 and 3-3, f ₄ (x) As an objective function, L _m,m′ (x _{m_i} ) Representing the position and position coordinate x according to the ith coordinate _m′ The intermediate quantity obtained by calculation is calculated and used for calculating the intermediate quantity,for the measured position coordinates x of the transition _m′ With the measured position coordinates x of the transition _m Relative position between f ₁ (x _{m_i} ) The meaning of (2) may be referred to the meaning of the above formula 1-1 or 2-1; in the above formulas 3-1, 3-2 and 3-3, let the adjustment x _{1_i} The position coordinate obtained by i of (2) is x' ₁ Let adjust x _{2_i} The position coordinate obtained by i of (2) is x' ₂ … …, let adjust x _{M_i} The coordinate obtained by i of (2) is x' _M It will be appreciated that the location coordinates obtained will be different for different i (location coordinate x _{1_i} 、x _{2_i} 、……、x _{M_i} I after adjustment of the respective position coordinates may be the same or different), resulting in an objective function f ₄ (x) In embodiments of the invention when i is adjusted such that f ₄ (x) At minimum, at this point x' ₁ 、x’ ₂ 、……、x’ _M Namely the position coordinates to be obtained, wherein, at the moment, x 'is' ₁ For the final determined position coordinates of the first reference device, x 'at this time' ₂ For the final determined position coordinates of the second reference device, … …, now x' _M The location of the UE is also determined for the location coordinates of the M-th reference device that is finally determined.

Thought II: the enhanced services mobile positioning center may not determine the location coordinates of each of the M reference devices according to the principles of the first alternative described above, but may attempt to try out the appropriate x by adjusting i directly over a larger range (e.g., within the serving cell in which the UE is located) _{m_i} Wherein, let adjust x _{1_i} The position coordinate obtained by i of (2) is x' ₁ Let adjust x _{2_i} The position coordinate obtained by i of (2) is x' ₂ … …, let adjust x _{M_i} The coordinate obtained by i of (2) is x' _M It will be appreciated that the location coordinates obtained will be different for different i (location coordinate x _{1_i} 、x _{2_i} 、……、x _{M_i} I after adjustment of the respective position coordinates may be the same or different), resulting in an objective function f ₄ (x) In embodiments of the invention when i is adjusted such that f ₄ (x) At minimum, at this point x' ₁ 、x’ ₂ 、……、x’ _M I.e. the appropriate position coordinates, i.e. the position coordinates to be determined, where x 'in this case' ₁ For the final determined position coordinates of the first reference device, x 'at this time' ₂ For the final determined position coordinates of the second reference device, … …, now x' _M The location of the UE is also determined for the location coordinates of the M-th reference device that is finally determined. Referring to fig. 5, fig. 5 is a schematic diagram of a positioning scenario provided by an embodiment of the present invention, where the scenario includes three base stations BS, namely BS1, BS2 and BS3 (BS 1 is a serving base station), and three user equipments UE, namely UE1, UE2 and UE3, respectively, where the UE1 measures relative positions with the three base stations according to the TOA principle, so as to obtain a first parameter, and the three user equipments UE measure relative positions with each other according to the TOA principle (indicated by U2U in fig. 3, namely UE to UE), so as to obtain a second parameter.

Referring to fig. 6, fig. 6 is a schematic diagram comparing the simulation result of the embodiment of the present invention with the simulation result of the prior art, where the black solid line (i.e. 2 WLS) represents the positioning method used in the existing LTE under the 200MHz bandwidth configuration, and it can be seen that the positioning accuracy is 50% and the error is 10m (meters). The black dashed line (i.e., PSO+TOA) represents the localization curve obtained using the particle swarm algorithm PSO and based on TOA. It can be seen that the positioning accuracy of the original algorithm compared with the LTE is improved to 4.2m, and the performance is improved by 2.4 times. The black line (i.e. PSO+TOA+U2U) represents the result obtained by using the particle swarm algorithm PSO and TOA to optimize the positioning when the positioning is performed in combination with 3 reference devices (i.e. the measurement of U2U exists), and the visible error is reduced to 3m, and the performance is improved by 3.3 times. Of course, only a simple comparison is given here, and when more reference devices are added and more measurement information is added, such as TOA and DOA combination, the positioning accuracy can be improved more, and the accuracy of 0.5m can be achieved (as shown by line CRLB toa+u2u).

Referring to fig. 7, fig. 7 is a flowchart of another positioning method according to an embodiment of the present invention, which may be implemented based on the communication system shown in fig. 1, and the positioning method includes, but is not limited to, the following steps:

Step S701: the network side equipment sends first indication information to the enhanced service mobile positioning center.

Specifically, the network side device is a device that provides a serving cell for the UE, for example, the network side device is a base station that provides a serving cell for the UE, and because the UE is to be located, the network side device sends the first indication information to the enhanced services mobile positioning center, where the first indication information is used to indicate a positioning manner supported by the network side device, for example, indicate that the network side device can support a positioning manner such as DOA, TDOA, TOA, and possibly indicate other information, for example, indicate an uplink pilot SRS supported by the UE. It can be appreciated that the positioning of the UE may be initiated by the network side device or by the enhanced services mobile positioning center; if the first indication information is initiated by the network side device, the network side device may actively send the first indication information to the enhanced service mobile positioning center, and if the first indication information is initiated by the enhanced service mobile positioning center, the enhanced service mobile positioning center triggers the network side device to send the first indication information, for example, the enhanced service mobile positioning center sends a notification message to the network side device to instruct the network side device to send the first indication information. In order to distinguish the network side device providing the serving cell to the UE from other network side devices described later, the network side device providing the serving cell to the UE may be referred to as a target network side device.

Step S702: the enhanced services mobile positioning center receives the first indication information.

Specifically, step S702 may refer to step S202, which is not described herein.

Step S703: the enhanced services mobile positioning center determines N-1 network side devices outside the target network side device.

Specifically, the determined N-1 network-side devices are typically network-side devices that are relatively close to the UE and are capable of receiving the pilot signal sent by the UE.

Step S704: and the enhanced service mobile positioning center sends auxiliary information to the N network side devices.

Specifically, the N network side devices are composed of the N-1 network side devices and the target network side device determined above. The auxiliary information is used to indicate the number (or "identity") of the UE, and also to indicate a measurement attribute, which may be a relative distance, or a relative angle, or a relative distance and a relative angle, or other quantity that is indicative of a relative position. The auxiliary information may also be used to indicate other information.

Step S705: the N network side devices receive the auxiliary information.

Specifically, the N network side devices determine the relative position between the UE and the to-be-measured UE according to the number of the UE indicated by the auxiliary information, and measure the corresponding quantity according to the measurement attribute indicated by the auxiliary information, for example, if the measurement attribute indicated by the auxiliary information is the relative distance, the N network side devices learn the relative distance between the to-be-measured UE and the to-be-measured UE, if the measurement attribute indicated by the auxiliary information is the relative angle, the N network side devices learn the relative angle between the to-be-measured UE and the to-be-measured UE, and so on when the measurement attribute is other quantity.

Step S706: the N network side devices all measure the relative positions with the UE.

Specifically, the relative position may be the same relative angle and the same relative distance, for example, if the N network side devices know that the relative distance between the UE and the N network side devices needs to be measured, the N network side devices measure the relative distance between the UE and the N network side devices; if the N network side devices know that the relative angle between the UE and the N network side devices needs to be measured, the N network side devices measure the relative angle between the N network side devices and the UE; if the N network side devices know that the relative angle and the relative distance between the N network side devices and the UE need to be measured, the N network side devices measure the relative angle and the relative distance between the N network side devices and the UE; the rest and so on; optionally, since the distances between the UE and the N network-side devices are measured by the N network-side devices, the N network-side devices may also be referred to as measurement devices.

Step S707: and the N network side devices all send the first parameters to the enhanced service mobile positioning center.

Specifically, each network side device of the N network side devices sends a first parameter to the enhanced services mobile positioning center, where each first parameter includes a first location parameter and a first error parameter, where the first location parameter included in the first parameter sent by any one network side device characterizes a relative location between the any one network side device and the UE, and the first error parameter included in the first parameter sent by any one network side device characterizes an error of the first location parameter included in the first parameter sent by any one network side device, e.g., a variance σ ² N is 1 or more. For example, N is equal to 3, where N is specifically referred to as network side device 1, network side device 2 and network side device 3, and then the first location parameter included in the first parameter sent by the network side device 1 characterizes the measured relative location between the network side device 1 and the UE, and the first error parameter included in the first parameter sent by the network side device 1 characterizes the error of the first location parameter included in the second parameter sent by the network side device; the first position parameter included in the first parameter sent by the network side device 2 characterizes the measured relative position between the network side device 2 and the UE, and the first error parameter included in the first parameter sent by the network side device 2 characterizes the error of the first position parameter included in the second parameter sent by the network side device; the first location parameter included in the first parameter sent by the network side device 3 characterizes the measured relative location between the network side device 3 and the UE, and the first error parameter included in the first parameter sent by the network side device 3 characterizes the second parameter sent by the network side deviceThe parameter comprises an error of the first position parameter.

Step S708: the enhanced service mobile positioning center receives N second parameters sent by the N network side devices.

Step S709: the enhanced services mobile positioning center determines the location of the UE based at least on the N first parameters.

Specifically, step S709 may be described in step S208, and will not be described herein.

In the method embodiments illustrated in fig. 2 and fig. 7, the UE or the network side device (e.g., the base station) transmits the measured first location parameter characterizing the relative location to the enhanced services mobile positioning center, and simultaneously transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through a PSO algorithm to determine the location of the UE, so that the determined location of the UE is more accurate.

The foregoing details of the method according to the embodiments of the present invention and the apparatus according to the embodiments of the present invention are provided below.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an E-SMLC80 according to an embodiment of the present invention, where the E-SMLC80 may include a first receiving unit 801 and a first determining unit 802, where the first receiving unit 801 is configured to receive N first parameters, each first parameter of the N first parameters includes a first position parameter and a first error parameter, the N first position parameters included in the N first parameters characterize a relative position between a terminal and N network side devices, each first position parameter of the N first position parameters is configured to characterize a relative position between the terminal and one network side device of the N network side devices, the first error parameter included in any one first parameter is configured to embody an error of the first position parameter included in the any one first parameter, and N is a positive integer; the first determining unit 802 is configured to determine a location of the terminal at least according to the N first parameters.

In an alternative solution, the first receiving unit receives N first parameters, specifically: and receiving N first parameters sent by the N network side devices, wherein each network side device in the N network side devices is used for sending one first parameter.

In yet another alternative, the first receiving unit receives N first parameters, specifically: E-SMLC receives N first parameters sent by the terminal.

In yet another alternative, the first location parameter is at least one of a measured distance and an angle between the terminal and the network side device.

In yet another alternative, the E-SMLC further includes a second receiving unit, where the second receiving unit is configured to receive M second parameters before the first determining unit determines the location of the terminal according to at least the N first parameters, where each second parameter of the M second parameters corresponds to one of the M reference devices, the reference devices corresponding to different second parameters are different, the second parameters include a second location parameter and a second error parameter, the second location parameter of any one second parameter characterizes a relative location between one reference device corresponding to the any one second parameter and M-1 reference devices of the M reference devices except for one reference device corresponding to the any one second parameter, the second error parameter of any one second parameter is used to characterize an error of the second location parameter of the any one second parameter, and M is a positive integer; in addition, the first determining unit determines the position of the terminal according to at least the N first parameters, specifically: and determining the position of the terminal according to the N first parameters and the M second parameters.

In yet another alternative, the second receiving unit receives M second parameters, specifically: and receiving M second parameters sent by the M reference devices, wherein each second parameter is sent by the reference device corresponding to the second parameter.

In yet another alternative, the second receiving unit receives M second parameters, specifically: and receiving M second parameters sent by fourth equipment, wherein the fourth equipment is used for acquiring the M second parameters from the M reference equipment, and any one of the M reference equipment has the second parameters corresponding to the any one reference equipment.

It should be noted that the implementation of the respective units may also correspond to the respective description of the method embodiment shown with reference to fig. 2 or 7.

In the E-SMLC80 depicted in fig. 8, a UE (i.e., a terminal) or a network side device (e.g., a base station) transmits a measured first location parameter characterizing a relative location to an enhanced services mobile positioning center, and also transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through a PSO algorithm to determine a location of the UE, so that the determined location of the UE is more accurate.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a measurement device 90 according to an embodiment of the present invention, where the measurement device 90 may include a first generating unit 901 and a first transmitting unit 902, where the first generating unit 901 is configured to generate a first parameter, where the first parameter includes a first location parameter and a first error parameter, the first location parameter characterizes a relative location between a terminal and a network side device, and the first error parameter is configured to embody an error of the first location parameter; the measuring equipment is the terminal or the network side equipment; the first sending unit 902 is configured to send the generated first parameter to an enhanced services mobile location center E-SMLC, where the generated first parameter is used by the E-SMLC to determine a location of the terminal.

In an alternative, when the measurement device is the terminal; the first generating unit generates a first parameter, specifically: generating N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer.

In a further alternative scheme, the measuring device further comprises a second generating unit and a second sending unit, wherein the second generating unit is used for generating a second parameter, the second parameter comprises a second position parameter and a second error parameter, the second position parameter characterizes the relative position between the measuring device and M-1 reference devices, the second error parameter is used for normalizing the error of the second position parameter, the measuring device is a reference device except for the M-1 reference devices in M reference devices, and M is a positive integer; the second sending unit is configured to send the second parameter to the E-SMLC, where the second parameter is used by the E-SMLC to determine a location of the terminal.

In yet another alternative, the second transmitting unit transmits the second parameter to the E-SMLC, including: and sending the second parameter to other devices, so that the other devices send the second parameter to the E-SMLC, wherein the other devices are one of the M reference devices or network side devices providing service cells for the M reference devices.

In the measurement device 90 depicted in fig. 9, the UE (i.e., the terminal) or the network-side device (e.g., the base station) transmits the measured first location parameter characterizing the relative location to the enhanced services mobile positioning center, and simultaneously transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through a PSO algorithm to determine the location of the UE, so that the determined location of the UE is more accurate.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a reference device 100 according to an embodiment of the present invention, where the reference device 100 may include a third generating unit 1001 and a third sending unit 1002, where the third generating unit 1001 is configured to generate a second parameter, where the reference device is one of M reference devices, the second parameter includes a second position parameter and a second error parameter, the second position parameter characterizes a relative position between the one reference device and M-1 reference devices other than the one reference device, the second error parameter characterizes an error of the second position parameter, and M is a positive integer; the third sending unit 1002 is configured to send the second parameter to an enhanced services mobile location center E-SMLC, where the second parameter is used by the E-SMLC to determine a location of the terminal.

In an alternative solution, the third sending unit sends the second parameter to the enhanced services mobile location center E-SMLC, specifically: the reference device sends the second parameter to other devices, so that the other devices send the second parameter to the E-SMLC, and the other devices are one reference device of the M reference devices or are network side devices providing service cells for the M reference devices.

In yet another alternative, the reference device further includes a third receiving unit and a second determining unit, where the third receiving unit is configured to receive a notification message sent by the E-SMLC before the third generating unit generates the second parameter, where the notification message includes the identities of the M reference devices; the second determining unit is used for determining the relative positions between the reference device and the M-1 reference devices according to the identification of the M reference devices.

In the reference device 100 depicted in fig. 10, a UE (i.e., a terminal) or a network-side device (e.g., a base station) transmits a measured first location parameter characterizing a relative location to an enhanced services mobile positioning center, and also transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through a PSO algorithm to determine a location of the UE, so that the determined location of the UE is more accurate.

Referring to fig. 11, fig. 11 is an E-SML110 according to an embodiment of the present invention, the E-SML110 includes a processor 1101, a memory 1102 and a transceiver 1103, where the processor 1101, the memory 1102 and the transceiver 1103 are connected to each other by a bus.

Memory 1102 includes, but is not limited to, random access Memory (English: random Access Memory; RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (English: erasable Programmable Read Only Memory; EPROM), or portable Read-Only Memory (English: compact Disc Read-Only Memory; CD-ROM), and is used for related instructions and data. The transceiver 1103 is used to receive and transmit data.

The processor 1101 may be one or more central processing units (english: central Processing Unit, abbreviated as "CPU"), and in the case where the processor 1101 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1101 in the E-SML110 is configured to read the program code stored in the memory 1102 to perform the following operations:

firstly, receiving N first parameters through the transceiver 1103, where each first parameter of the N first parameters includes a first position parameter and a first error parameter, where the N first position parameters included in the N first parameters characterize a relative position between a terminal and N network side devices, each first position parameter of the N first position parameters is used to characterize a relative position between the terminal and one network side device of the N network side devices, the first error parameter included in any one first parameter is used to embody an error of the first position parameter included in the any one first parameter, and N is a positive integer; then, the position of the terminal is determined at least according to the N first parameters.

In an alternative, the receiving N first parameters by the transceiver 1103 is specifically: the transceiver 1103 receives N first parameters sent by the N network side devices, where each network side device in the N network side devices is configured to send one of the first parameters.

In yet another alternative, the receiving N first parameters by the transceiver 1103 is specifically: n first parameters sent by the terminal are received by the transceiver 1103.

In yet another alternative, the processor 1101 is further configured to, prior to determining the location of the terminal based at least on the N first parameters: receiving, by the transceiver 1103, M second parameters, where each second parameter of the M second parameters corresponds to one of the M reference devices, the reference devices corresponding to different second parameters are different, the second parameters include a second position parameter and a second error parameter, the second position parameter of any one of the second parameters characterizes one of the reference devices corresponding to the any one of the second parameters, a relative position between the second position parameter of any one of the M reference devices except for one of the reference devices corresponding to the any one of the second parameters, the second error parameter of any one of the second parameters is used to characterize an error of the second position parameter of any one of the second parameters, the terminal is one of the M reference devices, and M is a positive integer; in addition, the processor 1101 determines the location of the terminal according to at least the N first parameters, specifically: the processor 1101 determines the location of the terminal based on the N first parameters and the M second parameters.

In yet another alternative, the receiving, by the transceiver 1103, M second parameters is specifically: m second parameters sent by the M reference devices are received by the transceiver 1103, and each second parameter is sent by the reference device corresponding to the second parameter.

In yet another alternative, the receiving, by the transceiver 1103, M second parameters is specifically: and receiving, by the transceiver 1103, M second parameters sent by a fourth device, where the fourth device is configured to obtain the M second parameters from the M reference devices, and any one of the M reference devices has the second parameter corresponding to the any one reference device.

It should be noted that the implementation of the respective operations may also correspond to the respective description of the method embodiment shown with reference to fig. 2 or 7.

In the E-SML110 depicted in fig. 11, a UE (i.e., a terminal) or a network side device (e.g., a base station) transmits a measured first location parameter characterizing a relative location to an enhanced services mobile positioning center, and also transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through a PSO algorithm to determine a location of the UE, so that the determined location of the UE is more accurate.

Referring to fig. 12, fig. 12 shows a measuring device 120 according to an embodiment of the present invention, where the measuring device 120 includes a processor 1201, a memory 1202 and a transceiver 1203, and the processor 1201, the memory 1202 and the transceiver 1203 are connected to each other by a bus.

Memory 1202 includes, but is not limited to, random access Memory (English: random Access Memory; RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (English: erasable Programmable Read Only Memory; EPROM), or portable Read-Only Memory (English: compact Disc Read-Only Memory; CD-ROM), where Memory 1202 is used for related instructions and data. The transceiver 1203 is configured to receive and transmit data.

The processor 1201 may be one or more central processing units (english: central Processing Unit, abbreviated as "CPU"), and in the case where the processor 1201 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1201 in the measurement device 120 is configured to read the program code stored in the memory 1202 to perform the following operations:

firstly, generating a first parameter, wherein the first parameter comprises a first position parameter and a first error parameter, the first position parameter characterizes the relative position of a terminal and network side equipment, and the first error parameter is used for reflecting the error of the first position parameter; the measuring equipment is the terminal or the network side equipment; the generated first parameter is then transmitted by the transceiver 1203 to an enhanced services mobile location center E-SMLC, which is used by the E-SMLC to determine the location of the terminal.

In an alternative, when the measurement device is the terminal; the first parameter generation method specifically comprises the following steps: generating N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer.

In yet another alternative, the processor 1201 is further configured to: generating a second parameter, wherein the second parameter comprises a second position parameter and a second error parameter, the second position parameter characterizes the relative position between the measuring equipment and M-1 reference equipment, the second error parameter is standardized to the error of the second position parameter, the measuring equipment is one of the M reference equipment except the M-1 reference equipment, and M is a positive integer; the second parameter is sent by the transceiver 1203 to the E-SMLC, which is used by the E-SMLC to determine the location of the terminal.

In yet another alternative, the second parameter is sent to the E-SMLC by the transceiver 1203, specifically: the second parameter is sent to other devices through the transceiver 1203, so that the other devices send the second parameter to the E-SMLC, where the other devices are one of the M reference devices or are network side devices that provide service cells for the M reference devices.

In the measurement device 120 depicted in fig. 12, the UE (i.e., the terminal) or the network-side device (e.g., the base station) transmits the measured first location parameter characterizing the relative location to the enhanced services mobile positioning center, and simultaneously transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through a PSO algorithm to determine the location of the UE, so that the determined location of the UE is more accurate.

Referring to fig. 13, fig. 13 is a reference device 130 according to an embodiment of the present invention, where the reference device 130 includes a processor 1301, a memory 1302, and a transceiver 1303, and the processor 1301, the memory 1302, and the transceiver 1303 are connected to each other through a bus.

Memory 1302 includes, but is not limited to, random access Memory (English: random Access Memory; RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (English: erasable Programmable Read Only Memory; EPROM), or portable Read-Only Memory (English: compact Disc Read-Only Memory; CD-ROM), where Memory 1302 is used for related instructions and data. The transceiver 1303 is used to receive and transmit data.

Processor 1301 may be one or more central processing units (English: central Processing Unit, CPU for short), and in the case where processor 1301 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1301 in the reference device 130 is configured to read the program code stored in the memory 1302 to perform the following operations:

firstly, generating a second parameter, wherein the second parameter is one of M reference devices, the second parameter comprises a second position parameter and a second error parameter, the second position parameter represents the relative position between the one reference device and M-1 reference devices except the one reference device, the second error parameter represents the error of the second position parameter, and M is a positive integer; the second parameter is then transmitted by the transceiver 1303 to an enhanced services mobile location center E-SMLC, which is used by the E-SMLC to determine the location of the terminal.

In an alternative, the transceiver 1303 sends a second parameter to the enhanced services mobile location center E-SMLC, specifically: the second parameter is sent to other devices through the transceiver 1303, so that the other devices send the second parameter to the E-SMLC, where the other devices are one of the M reference devices or are network side devices that provide service cells for the M reference devices.

In yet another alternative, the processor 1301 is further configured to, prior to the processor 1301 generating the second parameter: receiving, by the transceiver 1303, a notification message sent by the E-SMLC, where the notification message includes identifiers of the M reference devices; then, the relative position between the one reference device and the M-1 reference devices is determined based on the identification of the M reference devices.

In the reference device 130 depicted in fig. 13, the UE (i.e., the terminal) or the network side device (e.g., the base station) transmits the measured first location parameter characterizing the relative location to the enhanced services mobile positioning center, and simultaneously transmits a first error parameter characterizing an error of the first location parameter, and then the enhanced services mobile positioning center processes the first location parameter and the first error parameter through a PSO algorithm to determine the location of the UE, so that the determined location of the UE is more accurate.

In summary, by implementing the embodiment of the present invention, the UE (i.e., the terminal) or the network side device (e.g., the base station) sends the measured first location parameter representing the relative location to the enhanced service mobile positioning center, and also sends the first error parameter representing the error of the first location parameter, and then the enhanced service mobile positioning center processes the first location parameter and the first error parameter through the PSO algorithm to determine the location of the UE, so that the determined location of the UE is more accurate.

Those of ordinary skill in the art will appreciate that implementing all or part of the above-described method embodiments may be accomplished by a computer program to instruct related hardware, the program may be stored in a computer readable storage medium, and the program may include the above-described method embodiments when executed. And the aforementioned storage medium includes: ROM or random access memory RAM, magnetic or optical disk, etc.

Claims

1. A positioning method, comprising:

the enhanced service mobile positioning center E-SMLC receives N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters characterize the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for characterizing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for reflecting the error of the first position parameter contained in any one first parameter, and N is a positive integer;

the E-SMLC receives M second parameters, each second parameter in the M second parameters corresponds to one reference device in M reference devices, the different reference devices corresponding to different second parameters are different, the second parameters comprise second position parameters and second error parameters, the second position parameter in any one second parameter characterizes one reference device corresponding to any one second parameter, the relative position between the second position parameter and M-1 reference devices except one reference device corresponding to any one second parameter in the M reference devices is used for characterizing the error of the second position parameter in any one second parameter, and the terminal is one reference device in the M reference devices and M is a positive integer;

And the E-SMLC determines the position of the terminal at least according to the N first parameters and the M second parameters.

2. The method of claim 1, wherein the enhanced services mobile location center SMLC receives N first parameters, comprising:

E-SMLC receives N first parameters sent by the N network side devices, wherein each network side device in the N network side devices is used for sending one first parameter.

3. The method of claim 1, wherein the enhanced services mobile location center E-SMLC receives N first parameters, comprising:

and E-SMLC receives the N first parameters sent by the terminal.

4. A method according to any of claims 1-3, wherein the first location parameter is at least one of a measured distance and an angle between the terminal and the network side device.

5. A method according to any one of claims 1-3, wherein the E-SMLC receives M second parameters, comprising:

and the E-SMLC receives M second parameters sent by M reference devices, and each second parameter is sent by the reference device corresponding to the second parameter.

6. A method according to any one of claims 1-3, wherein the E-SMLC receives M second parameters, comprising:

The E-SMLC receives M second parameters sent by fourth equipment, the fourth equipment is used for acquiring the M second parameters from the M reference equipment, and any one of the M reference equipment has the second parameters corresponding to the any one reference equipment.

7. A positioning method, comprising:

the method comprises the steps that a measuring device generates first parameters, wherein the first parameters comprise first position parameters and first error parameters, the first position parameters represent the relative positions of a terminal and network side equipment, and the first error parameters are used for reflecting errors of the first position parameters; the measuring equipment is the terminal or the network side equipment;

the measurement equipment sends the generated first parameter to an enhanced service mobile positioning center (E-SMLC), and the generated first parameter is used for the E-SMLC to determine the position of the terminal;

the measuring equipment generates a second parameter, wherein the second parameter comprises a second position parameter and a second error parameter, the second position parameter characterizes the relative position between the measuring equipment and M-1 reference equipment, the second error parameter is standard for the error of the second position parameter, the measuring equipment is a reference equipment except the M-1 reference equipment in M reference equipment, and M is a positive integer;

The measuring equipment sends the second parameters to an E-SMLC, wherein the second parameters are used for determining the position of the terminal by the E-SMLC, the E-SMLC is used for determining the position of the terminal at least according to N first parameters and M second parameters, N is a positive integer, and M is a positive integer.

8. The method of claim 7, wherein when the measurement device is the terminal; the measurement device generates a first parameter comprising:

the measuring equipment generates N first parameters, each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of the terminal and N network side equipment, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side equipment in the N network side equipment, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer.

9. The method of claim 7 or 8, wherein the measuring device transmitting the second parameter to the E-SMLC comprises:

The measurement device sends the second parameter to other devices, so that the other devices send the second parameter to the E-SMLC, and the other devices are one of the M reference devices or network side devices providing service cells for the M reference devices.

10. An enhanced services mobile location center, E-SMLC, comprising a processor, a transceiver, and a memory, the memory for storing instructions, the processor for invoking the instructions in the memory to perform the following:

receiving N first parameters through the transceiver, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer;

Receiving, by the transceiver, M second parameters, where each second parameter of the M second parameters corresponds to one reference device of the M reference devices, the reference devices corresponding to different second parameters are different, the second parameters include a second position parameter and a second error parameter, the second position parameter of any one second parameter characterizes the one reference device corresponding to the any one second parameter, a relative position between the second parameter and M-1 reference devices of the M reference devices except for the one reference device corresponding to the any one second parameter, the second error parameter of any one second parameter is used to characterize an error of the second position parameter of the any one second parameter, and the terminal is one reference device of the M reference devices, and M is a positive integer;

and determining the position of the terminal at least according to the N first parameters and the M second parameters.

11. The E-SMLC of claim 10, wherein said receiving N first parameters by said transceiver is in particular:

and receiving N first parameters sent by the N network side devices through the transceiver, wherein each network side device in the N network side devices is used for sending one first parameter.

12. The E-SMLC of claim 10, wherein said receiving N first parameters by said transceiver is in particular:

and receiving N first parameters sent by the terminal through the transceiver.

13. The E-SMLC according to any of the claims 10-12, characterised in that said first location parameter is at least one of a measured distance and angle between said terminal and said network side device.

14. The E-SMLC according to any of the claims 10-12, wherein said receiving, by said transceiver, M second parameters, in particular:

and receiving M second parameters sent by M reference devices through the transceiver, wherein each second parameter is sent by the reference device corresponding to the second parameter.

15. The E-SMLC according to any of the claims 10-12, wherein said receiving, by said transceiver, M second parameters, in particular:

and receiving M second parameters sent by fourth equipment through the transceiver, wherein the fourth equipment is used for acquiring the M second parameters from the M reference equipment, and any one of the M reference equipment has the second parameters corresponding to the any one reference equipment.

16. A measurement device comprising a processor, a transceiver, and a memory, the memory for storing instructions, the processor for invoking the instructions in the memory to:

generating a first parameter, wherein the first parameter comprises a first position parameter and a first error parameter, the first position parameter characterizes the relative position of a terminal and network side equipment, and the first error parameter is used for reflecting the error of the first position parameter; the measuring equipment is the terminal or the network side equipment;

transmitting, by the transceiver, the generated first parameter to an enhanced services mobile location center E-SMLC, the generated first parameter being used by the E-SMLC to determine a location of the terminal;

generating a second parameter, wherein the second parameter comprises a second position parameter and a second error parameter, the second position parameter characterizes the relative position between the measuring equipment and M-1 reference equipment, the second error parameter is standard for the error of the second position parameter, the measuring equipment is a reference equipment except the M-1 reference equipment in M reference equipment, and M is a positive integer;

And sending the second parameters to an E-SMLC through the transceiver, wherein the second parameters are used for determining the position of the terminal by the E-SMLC, the E-SMLC is used for determining the position of the terminal at least according to N first parameters and M second parameters, N is a positive integer, and M is a positive integer.

17. The measurement device of claim 16, wherein when the measurement device is the terminal; the first parameter generation specifically includes:

generating N first parameters, wherein each first parameter in the N first parameters comprises a first position parameter and a first error parameter, the N first position parameters contained in the N first parameters represent the relative positions of a terminal and N network side devices, each first position parameter in the N first position parameters is used for representing the relative positions of the terminal and one network side device in the N network side devices, the first error parameter contained in any one first parameter is used for representing the error of the first position parameter contained in any one first parameter, and N is a positive integer.

18. The measurement device according to claim 16 or 17, wherein the sending of the second parameter to the E-SMLC by the transceiver is in particular:

And sending the second parameter to other devices through the transceiver so that the other devices send the second parameter to the E-SMLC, wherein the other devices are one of the M reference devices or network side devices providing service cells for the M reference devices.

19. A storage medium for storing instructions that, when executed on a processor of an E-SMLC, perform the method of any of claims 1-6; or the instructions, when run on a processor of a measuring device, perform the method of any of claims 7-9.