CN107306421B

CN107306421B - Positioning method and device

Info

Publication number: CN107306421B
Application number: CN201610262245.0A
Authority: CN
Inventors: 傅婧; 全海洋; 梁靖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-04-25
Filing date: 2016-04-25
Publication date: 2020-03-24
Anticipated expiration: 2036-04-25
Also published as: CN107306421A; WO2017185948A1

Abstract

The invention provides a positioning method and a positioning device, and the positioning method applied to a base station side comprises the following steps: acquiring positioning measurement information of a terminal; receiving a positioning measurement request triggered by a preset positioning entity, wherein the positioning measurement request comprises an instruction for performing positioning measurement on a terminal by using a coverage enhancement level; and sending the positioning measurement information of the terminal to a preset positioning entity according to the positioning measurement request, so that the preset positioning entity can position the terminal according to the positioning measurement information. The network side roughly positions the terminal by using the coverage enhancement grade and the service cell identifier of the terminal, so that the extra expense of the terminal caused by the positioning of the terminal in the coverage enhancement grade range is avoided, the complexity of the terminal is reduced, and the power consumption of the terminal is saved; or the network side performs positioning measurement on the terminal by using the repeated sending characteristic of the coverage enhancement level, so as to obtain a more accurate positioning measurement result and improve the positioning measurement precision.

Description

Positioning method and device

Technical Field

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

Background

The narrowband Internet of Things (NB-IoT) working phase (Work Item, WI) is passed and started in the 3GPP Release 13(Release 13) phase.

The goal of the WI phase of the narrow-band Internet is to standardize the wireless access of the Cellular Internet of Things (CIoT). The technology is extended based on LTE/LTE-a, and the network characteristics/goals mainly considered are: the indoor coverage is enhanced, the access of a large number of low-speed devices is supported, the delay sensitivity is low, the device cost is reduced, the device power consumption is reduced, the network architecture is optimized, and the like.

Some of the characteristics currently recognized as possible for NB-IOT communications are:

the NB-IOT terminal has low mobility;

the time for the NB-IOT terminal to perform data transmission with the network side is controllable; that is, the NB-IOT terminal can only access within a time period specified by the network.

The data transmission between the NB-IOT terminal and the network side has low real-time requirement on data transmission, namely: the method is time-tolerant;

the energy of the NB-IOT terminal is limited, and extremely low power consumption is required;

only small data volume information transmission is carried out between the NB-IOT terminal and the network side;

the NB-IOT terminal has low implementation complexity;

an actual NB-IOT terminal may have one or more of the characteristics described above.

The terminal in the internet of things may be installed in a basement or other places with path loss greatly exceeding that of ordinary LTE equipment, and in order to enable the terminal to be normally served, a network side or the terminal needs to repeatedly transmit downlink DL data or uplink UL data for many times, so that the opposite end can decode correct data through merging. The coverage enhancement levels (levels) of the terminals are different, and the required repeated transmission times are different. The higher the CE level is, the weaker the coverage of the terminal is, the more the number of times of repeated transmission is needed, so that the terminal side or the base station can analyze correct data through merging and decoding.

Currently, for different CE levels, there are respective corresponding PRACH (physical random access channel) resources. The base station may infer the CE level at which the terminal is currently located according to the received preamble.

LTE positioning introduction, as shown in fig. 1:

1. a Mobility Management Entity (MME) receives a Location service request, wherein the service request can be a request initiated by UE to the MME through an NAS message, or can be a Location service request initiated by some entities (such as a Gateway Mobile Location Center (GMLC)) in an EPC or initiated inside the MME;

2, MME sends a Location service request to E-SMLC (Evolved Serving Mobile Location Center), and the E-SMLC selects a proper Location method according to QoS (such as Location accuracy, time delay and other information) carried in the Location request;

3a.E-SMLC may trigger eNB related Positioning procedures (e.g. acquiring assistance data required for Positioning, or measurements required for Positioning) via lppa (lte Positioning Protocol annex) Protocol;

3b.E-SMLC may trigger UE-related Positioning procedures (such as obtaining position estimates, transmitting assistance data required for Positioning, or obtaining measurements required for Positioning) via lpp (lte Positioning protocol) protocol;

the E-SMLC sends a positioning service response to the MME, wherein some required results (such as the position of the UE, the indication of success or failure of positioning and the like) are included;

the MME returns a location services response to the target entity.

In LTE positioning, a variety Of positioning methods are supported, such as a Global Navigation Satellite System (GNSS), an otdoa (observed Time Difference Of arrival) method, a Cell ID and its enhancement, and the like.

The CELL ID positioning method is a CELL coverage-based positioning method, and adopts known geographical information of a service CELL to estimate the position of target UE. The serving cell information may be obtained by calling, paging, TA (tracking area) area update, and the like. TA + AoA considers the factors of timing advance (namely TA, timing advance) and incoming wave direction (namely AoA, angle of Arrival) on the basis of a CELL _ ID positioning method, thereby achieving the purpose of more accurate positioning.

The base station obtains AoA of a signal transmitted by the UE through the intelligent antenna, the UE is positioned on a ray taking the base station as a starting point, and the ray rotates anticlockwise from the due north direction by the AoA.

The timing advance TA in LTE can be obtained by the terminal reporting the time difference between the terminal receiving and transmitting plus the time difference between the receiving and transmitting measured by the base station (the TA calculated by this method is referred to as TA TYPE1), or can be obtained by the base station measuring through the dedicated random access procedure (the TA calculated by this method is referred to as TA TYPE 2). The TA multiplied by the speed of light divided by 2 represents the distance between the terminal and the base station, the terminal being located on a circle with the base station as the center and the distance between the terminal and the base station as the radius. Then, the position information of the terminal can be obtained according to the AoA angle information, as shown in fig. 2.

U-TDOA (time difference of arrival) is a network-based positioning method, and obtains an observation time difference of SRS (channel sounding reference signal) signals transmitted by a terminal through an LMU (Location measurement unit), and calculates the Location of the terminal by combining Location coordinates of the LMU. Wherein, the configuration of the SRS signal transmitted by the terminal side is currently configured to the terminal by the base station through an RRC (radio resource control) message.

Due to the time relationship, positioning in the current NB-IOT is not discussed fully, but it is agreed that positioning measurement results can be obtained through existing positioning measurement at the base station side, and the method cannot be well applied to NB-IOT scenes, for example, the base station is in a basement or other places with path loss greatly exceeding that of ordinary LTE equipment.

Disclosure of Invention

The invention aims to provide a positioning method and a positioning device, and solves the problems that in the prior art, a base station can only obtain a positioning measurement result through the existing positioning measurement, and the positioning of equipment in a narrow-band Internet of things scene cannot be well realized.

In order to achieve the above object, an embodiment of the present invention provides a positioning method, applied to a base station side, including:

acquiring positioning measurement information of a terminal, wherein the positioning measurement information comprises a coverage enhancement level of the terminal at present and a service cell identifier of the terminal;

receiving a positioning measurement request triggered by a preset positioning entity, wherein the positioning measurement request comprises an instruction for performing positioning measurement on a terminal by using the coverage enhancement level;

and sending the positioning measurement information of the terminal to a preset positioning entity according to the positioning measurement request, so that the preset positioning entity can position the terminal according to the positioning measurement information.

Wherein the positioning measurement information further comprises: timing advance between the base station and the mobile station.

Wherein the positioning measurement information further comprises: the direction of the incoming wave between the terminal and the base station.

The embodiment of the invention also provides a positioning method, which is applied to a positioning entity side and comprises the following steps:

sending a positioning measurement request to a base station, wherein the positioning measurement request comprises an indication of positioning measurement of a terminal by using a coverage enhancement level;

receiving positioning measurement information of the terminal returned by the base station, wherein the positioning measurement information comprises a coverage enhancement grade of the terminal and a service cell identifier of the terminal;

and positioning the terminal according to the positioning measurement information.

Wherein, the step of positioning the terminal according to the positioning measurement information comprises:

acquiring pre-stored distribution position area information of different coverage enhancement levels under each cell;

acquiring a first distribution position area of a coverage enhancement grade where the terminal is currently located according to the service cell identification and the pre-stored distribution position area information;

determining that the terminal is located within the first distributed location area.

Wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station;

the step of positioning the terminal according to the positioning measurement information comprises:

determining the distance between a base station and the terminal according to the timing advance;

determining a second distributed location area located in the first distributed location area according to the distance and the first distributed location area;

determining that the terminal is located within the second distributed location area.

Wherein the positioning measurement information further comprises: the incoming wave direction between the terminal and the base station;

determining the current position direction of the terminal relative to a base station according to the incoming wave direction;

determining a third distributed location area located in the first distributed location area according to the location direction and the first distributed location area;

and determining that the terminal is located in the third distributed location area.

Wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station;

correcting the timing advance and the incoming wave direction according to the coverage enhancement grade of the terminal at present to obtain a target timing advance and a target incoming wave direction;

and determining the current position of the terminal by using the target timing advance and the target incoming wave direction.

The embodiment of the invention also provides a positioning method, which is applied to the base station side and comprises the following steps:

determining to perform positioning measurement on the terminal by using the coverage enhancement level;

receiving a positioning measurement request triggered by a preset positioning entity, wherein the positioning measurement request comprises an instruction of positioning measurement on a terminal by using a preset coverage enhancement level;

positioning and measuring the terminal by utilizing the preset coverage enhancement grade;

and sending the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result.

Wherein the step of performing positioning measurement on the terminal by using the preset coverage enhancement level comprises:

sending indication information to a terminal, wherein the indication information is used for indicating that the preset coverage enhancement grade is currently used for carrying out positioning measurement on the terminal;

receiving uplink data which is repeatedly sent by the terminal based on the preset coverage enhancement grade;

and measuring the timing advance between the base station and the mobile station and the incoming wave direction between the terminal and the base station according to the uplink data, and carrying out positioning measurement on the terminal according to the timing advance and the incoming wave direction.

determining configuration information of a channel sounding reference signal according to the preset coverage enhancement level and sending the configuration information to a terminal;

and receiving the channel sounding reference signal transmitted by the terminal according to the configuration information, and performing positioning measurement on the terminal according to the channel sounding reference signal.

sending the preset coverage enhancement grade to a terminal, so that the terminal configures a channel sounding reference signal according to the preset coverage enhancement grade;

and receiving the configured channel sounding reference signal sent by the terminal, and performing positioning measurement on the terminal according to the channel sounding reference signal.

acquiring the coverage enhancement level of the terminal at present;

receiving a positioning measurement request triggered by a preset positioning entity, wherein the positioning measurement request comprises an instruction for positioning measurement on a terminal by using a coverage enhancement grade which is greater than or equal to a coverage enhancement grade at which the terminal is currently located;

determining a target coverage enhancement grade which is greater than or equal to the coverage enhancement grade of the terminal at present, and performing positioning measurement on the terminal by using the target coverage enhancement grade;

Wherein the step of performing positioning measurement on the terminal by using the target coverage enhancement level comprises:

sending indication information to a terminal, wherein the indication information is used for indicating that the target coverage enhancement grade is currently used for carrying out positioning measurement on the terminal;

receiving uplink data which is repeatedly sent by the terminal based on the target coverage enhancement grade;

determining configuration information of a channel sounding reference signal according to the target coverage enhancement level and sending the configuration information to a terminal;

sending the target coverage enhancement grade to a terminal, so that the terminal configures a channel sounding reference signal according to the target coverage enhancement grade;

The embodiment of the present invention further provides a positioning device, applied to a base station side, including:

a first information obtaining module, configured to obtain positioning measurement information of a terminal, where the positioning measurement information includes a coverage enhancement level where the terminal is currently located and a serving cell identifier of the terminal;

a first request receiving module, configured to receive a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication that positioning measurement is performed on a terminal using the coverage enhancement level;

and the information sending module is used for sending the positioning measurement information of the terminal to a preset positioning entity according to the positioning measurement request, so that the preset positioning entity can position the terminal according to the positioning measurement information.

The embodiment of the present invention further provides a positioning apparatus, applied to a positioning entity, including:

a request sending module, configured to send a positioning measurement request to a base station, where the positioning measurement request includes an indication of performing positioning measurement on a terminal using a coverage enhancement level;

an information receiving module, configured to receive positioning measurement information of the terminal returned by the base station, where the positioning measurement information includes a coverage enhancement level at which the terminal is currently located and a serving cell identifier of the terminal;

and the first positioning module is used for positioning the terminal according to the positioning measurement information.

Wherein the first positioning module comprises:

the first acquisition module is used for acquiring pre-stored distribution position area information of different coverage enhancement grades in each cell;

a first area obtaining module, configured to obtain, according to the serving cell identifier and the pre-stored distribution location area information, a first distribution location area of a coverage enhancement level where the terminal is currently located;

a first location determining module, configured to determine that the terminal is located in the first distributed location area.

the first positioning module comprises:

a first distance determining module, configured to determine a distance between the base station and the terminal according to the timing advance;

a second area obtaining module, configured to determine, according to the distance and the first distributed location area, a second distributed location area located in the first distributed location area;

a second location determining module, configured to determine that the terminal is located in the second distributed location area.

the first positioning module comprises:

a first direction determining module, configured to determine, according to the incoming wave direction, a current position direction of the terminal relative to a base station;

a third area obtaining module, configured to determine a third distribution location area located in the first distribution location area according to the location direction and the first distribution location area;

and the third position determining module is used for determining that the terminal is positioned in the third distribution position area.

the first positioning module comprises:

the first correction module is used for correcting the timing advance and the incoming wave direction according to the coverage enhancement grade of the terminal at present to obtain a target timing advance and a target incoming wave direction;

and the fourth position determining module is used for determining the current position of the terminal by using the target timing advance and the target incoming wave direction.

a second information obtaining module, configured to obtain positioning measurement information of a terminal, where the positioning measurement information includes a coverage enhancement level where the terminal is currently located and a serving cell identifier of the terminal;

a method determination module for determining to use the coverage enhancement level for performing positioning measurement on the terminal;

and the second positioning module is used for positioning the terminal according to the positioning measurement information.

Wherein the second positioning module comprises:

the second acquisition module is used for acquiring pre-stored distribution position area information of different coverage enhancement grades in each cell;

a first distribution obtaining module, configured to obtain, according to the serving cell identifier and the pre-stored distribution location area information, a first distribution location area of a coverage enhancement level where the terminal is currently located;

a first determining module, configured to determine that the terminal is located in the first distributed location area.

the second positioning module includes:

a second distance determining module, configured to determine a distance between the base station and the terminal according to the timing advance;

the second distribution acquisition module is used for determining a second distribution position area in the first distribution position area according to the distance and the first distribution position area;

a second determining module, configured to determine that the terminal is located in the second distributed location area.

the second positioning module includes:

a second direction determining module, configured to determine, according to the incoming wave direction, a current position direction of the terminal relative to a base station;

a third distribution obtaining module, configured to determine, according to the position direction and the first distribution position area, a third distribution position area located in the first distribution position area;

and the third determining module is used for determining that the terminal is located in the third distribution location area.

the second positioning module includes:

the second correction module is used for correcting the timing advance and the incoming wave direction according to the coverage enhancement grade of the terminal at present to obtain a target timing advance and a target incoming wave direction;

and the fourth determining module is used for determining the current position of the terminal by using the target timing advance and the target incoming wave direction.

a second request receiving module, configured to receive a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication of performing positioning measurement on a terminal using a preset coverage enhancement level;

the first measurement module is used for carrying out positioning measurement on the terminal by utilizing the preset coverage enhancement grade;

and the first measurement sending module is used for sending the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result.

Wherein, first measurement module includes:

a first indication unit, configured to send indication information to a terminal, where the indication information is used to indicate that the preset coverage enhancement level is currently used for performing positioning measurement on the terminal;

a first data receiving unit, configured to receive uplink data repeatedly sent by the terminal based on the preset coverage enhancement level;

and the first measurement unit is used for measuring the timing advance between the base station and the mobile station and the incoming wave direction between the terminal and the base station according to the uplink data and carrying out positioning measurement on the terminal according to the timing advance and the incoming wave direction.

Wherein the first measurement module comprises:

a first configuration information sending unit, configured to determine configuration information of the channel sounding reference signal according to the preset coverage enhancement level and send the configuration information to the terminal;

and the first signal receiving unit is used for receiving the channel sounding reference signal transmitted by the terminal according to the configuration information and carrying out positioning measurement on the terminal according to the channel sounding reference signal.

Wherein the first measurement module comprises:

a first level sending unit, configured to send the preset coverage enhancement level to a terminal, so that the terminal configures a channel sounding reference signal according to the preset coverage enhancement level;

and the second signal receiving unit is used for receiving the configured channel sounding reference signal sent by the terminal and carrying out positioning measurement on the terminal according to the channel sounding reference signal.

the level acquisition module is used for acquiring the coverage enhancement level of the terminal at present;

a third request receiving module, configured to receive a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication that positioning measurement is performed on a terminal using a coverage enhancement level that is greater than or equal to a coverage enhancement level at which the terminal is currently located;

the second measurement module is used for determining a target coverage enhancement level which is greater than or equal to the coverage enhancement level of the terminal at present and performing positioning measurement on the terminal by using the target coverage enhancement level;

and the second measurement sending module is used for sending the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result.

Wherein the second measurement module comprises:

a second indicating unit, configured to send indication information to a terminal, where the indication information is used to indicate that the target coverage enhancement level is currently used to perform positioning measurement on the terminal;

a second data receiving unit, configured to receive uplink data repeatedly sent by the terminal based on the target coverage enhancement level;

and the first positioning unit is used for measuring the timing advance between the base station and the mobile station and the incoming wave direction between the terminal and the base station according to the uplink data and carrying out positioning measurement on the terminal according to the timing advance and the incoming wave direction.

Wherein the second measurement module comprises:

a second configuration information sending unit, configured to determine configuration information of the channel sounding reference signal according to the target coverage enhancement level and send the configuration information to the terminal;

and the third signal receiving unit is used for receiving the channel sounding reference signal transmitted by the terminal according to the configuration information and performing positioning measurement on the terminal according to the channel sounding reference signal.

Wherein the second measurement module comprises:

a second level sending unit, configured to send the target coverage enhancement level to a terminal, so that the terminal configures a channel sounding reference signal according to the target coverage enhancement level;

and the fourth signal receiving unit is used for receiving the configured channel sounding reference signal sent by the terminal and carrying out positioning measurement on the terminal according to the channel sounding reference signal.

The technical scheme of the invention at least has the following beneficial effects:

in the positioning method and the positioning device, the network side roughly positions the terminal by using the coverage enhancement grade and the service cell identifier of the terminal, so that the extra expense of the terminal caused by the positioning of the terminal in the coverage enhancement grade range is avoided, the complexity of the terminal is reduced, and the power consumption of the terminal is saved; or the network side performs positioning measurement on the terminal by using the repeated sending characteristic of the coverage enhancement level, so as to obtain a more accurate positioning measurement result and improve the positioning measurement precision.

Drawings

Fig. 1 shows a schematic positioning flow diagram of an LTE control plane;

fig. 2 is a schematic diagram illustrating positioning of a terminal by using a timing advance TA and an incoming wave direction AoA;

fig. 3 is a flow chart illustrating the basic steps of a positioning method according to a first embodiment of the present invention;

fig. 4 is a flow chart illustrating the basic steps of a positioning method according to a second embodiment of the present invention;

fig. 5 is a flow chart illustrating the basic steps of a positioning method according to a third embodiment of the present invention;

figure 6 shows a schematic diagram of a positioning method based on coverage enhancement level and serving cell identity;

fig. 7 is a schematic diagram of a terminal location of a positioning method based on coverage enhancement level and serving cell identity;

fig. 8 is a flow chart illustrating the basic steps of a positioning method according to a fourth embodiment of the present invention;

fig. 9 is a schematic diagram illustrating positioning measurement of a terminal using a preset coverage enhancement level;

fig. 10 is a flow chart illustrating the basic steps of a positioning method according to a fifth embodiment of the present invention;

fig. 11 shows a schematic diagram of a positioning measurement of a terminal with a higher level of coverage enhancement;

FIG. 12 is a block diagram of a positioning device according to a sixth embodiment of the present invention;

FIG. 13 is a block diagram of a positioning device according to a seventh, ninth, eleventh, thirteenth and fifteenth embodiments of the present invention;

FIG. 14 is a block diagram of a positioning device according to an eighth embodiment of the present invention;

FIG. 15 is a block diagram of a positioning device according to a tenth embodiment of the present invention;

FIG. 16 is a block diagram of a positioning device according to a twelfth embodiment of the present invention;

fig. 17 is a structural view of a positioning apparatus according to a fourteenth embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

First embodiment

As shown in fig. 3, a first embodiment of the present invention provides a positioning method, applied to a base station side, including:

step 11, obtaining positioning measurement information of a terminal, where the positioning measurement information includes a coverage enhancement level (CE level) where the terminal is currently located and a serving cell identifier of the terminal;

step 12, receiving a positioning measurement request triggered by a preset positioning entity, wherein the positioning measurement request comprises an instruction for performing positioning measurement on a terminal by using the coverage enhancement level;

and step 13, sending the positioning measurement information of the terminal to a preset positioning entity according to the positioning measurement request, so that the preset positioning entity can position the terminal according to the positioning measurement information.

In the first embodiment of the present invention, the preset positioning entity is a positioning measurement receiving entity on the network side, such as an evolved serving mobile location center E-SMLC or a mobility management entity MME, and is not limited specifically herein. In the above embodiments of the present invention, the base station sends the coverage enhancement level and the serving cell identifier of the current terminal to the preset positioning entity as the positioning measurement information, and the preset positioning entity can position the terminal according to the positioning measurement information.

Further, in the first embodiment of the present invention, the positioning measurement information further includes: timing advance between the base station and the mobile station.

Further, the positioning measurement information further includes: the direction of the incoming wave between the terminal and the base station.

Namely, in the above embodiment of the present invention, there are 4 cases of the positioning measurement information, which are respectively: in case 1, the positioning measurement information includes a coverage enhancement level where the terminal is currently located and a serving cell identifier of the terminal; in case 2, the positioning measurement information includes the coverage enhancement level of the terminal, the serving cell identifier of the terminal, and the timing advance; in case 3, the positioning measurement information includes the coverage enhancement level of the terminal, the serving cell identifier of the terminal, and the incoming wave direction; in the case 4, the positioning measurement information includes the coverage enhancement level of the terminal, the serving cell identifier of the terminal, the timing advance, and the incoming wave direction.

It should be noted that, when the coverage enhancement level of the terminal changes, the base station needs to update the sent positioning measurement information in real time to ensure the accuracy of positioning the terminal.

Second embodiment

A second embodiment of the present invention provides a positioning method corresponding to the first embodiment described above, the positioning method being applied to a positioning entity side, as shown in fig. 4, the positioning method including:

step 21, sending a positioning measurement request to a base station, wherein the positioning measurement request comprises an indication of positioning measurement of a terminal by using a coverage enhancement level;

step 22, receiving positioning measurement information of the terminal returned by the base station, wherein the positioning measurement information comprises a coverage enhancement level of the terminal and a service cell identifier of the terminal;

and step 23, positioning the terminal according to the positioning measurement information.

A positioning method provided in a second embodiment of the present invention is a positioning method on a positioning entity side corresponding to the positioning method on the base station side provided in the first embodiment, where the positioning entity sends a positioning measurement request to the base station, so that the base station returns corresponding positioning measurement information, thereby positioning the terminal according to the positioning measurement information.

Specifically, if the terminal is located according to the positioning measurement information, the following description will be made for 4 cases of the positioning measurement information, respectively:

in case 1, the positioning measurement information includes a coverage enhancement level where the terminal is currently located and a serving cell identifier of the terminal; namely, step 23 includes:

231, acquiring pre-stored distribution position area information of different coverage enhancement levels in each cell;

step 232, obtaining a first distribution location area of the coverage enhancement level where the terminal is currently located according to the serving cell identifier and the pre-stored distribution location area information;

step 233, determining that the terminal is located within the first distributed location area.

In the above embodiment of the present invention, the positioning entity stores the CE level distribution condition in each cell, and the positioning entity may narrow the current position of the terminal to an area under a certain cell according to the received CE level and the serving cell identifier. By the method, the terminal within the coverage enhancement level CE range can be roughly positioned, so that extra terminal overhead caused by positioning the terminal within the CE range is avoided, the terminal complexity is reduced, and the terminal power consumption is saved.

In case 2, the positioning measurement information includes the coverage enhancement level of the terminal, the serving cell identifier of the terminal, and the timing advance; namely, the positioning measurement information further includes: timing advance between a base station and a mobile station; accordingly, step 23 comprises:

step 234, obtaining pre-stored distribution position area information of different coverage enhancement levels under each cell;

step 235, obtaining a first distribution location area of a coverage enhancement level where the terminal is currently located according to the serving cell identifier and the pre-stored distribution location area information;

step 236, determining the distance between the base station and the terminal according to the timing advance;

step 237, determining a second distributed location area located in the first distributed location area according to the distance and the first distributed location area;

step 238, determining that the terminal is located within the second distributed location area.

In the above embodiment of the present invention, the positioning entity stores the CE level distribution condition in each cell, and the positioning entity may narrow the current position of the terminal to an area under a certain cell according to the received CE level (CE level is set to 1) and the serving cell identifier. If the serving cell is found to have a coverage area with CE levels of 1 at two locations, the positioning entity determines the approximate distance between the terminal and the base station according to the obtained timing advance TA, and further determines the coverage area of which cell level of 1 the UE is currently located in. By the method, the terminal within the coverage enhancement level CE range can be roughly positioned, so that extra terminal overhead caused by positioning the terminal within the CE range is avoided, the terminal complexity is reduced, and the terminal power consumption is saved.

In case 3, the positioning measurement information includes a coverage enhancement level of the terminal, a serving cell identifier of the terminal, and an incoming wave direction, that is, the positioning measurement information further includes: the incoming wave direction between the terminal and the base station; accordingly, step 23 comprises:

step 239, acquiring pre-stored distribution position area information of different coverage enhancement levels under each cell;

step 240, obtaining a first distribution location area of a coverage enhancement level where the terminal is currently located according to the serving cell identifier and the pre-stored distribution location area information;

step 241, determining the current position direction of the terminal relative to the base station according to the incoming wave direction;

step 242, determining a third distribution location area located in the first distribution location area according to the location direction and the first distribution location area;

step 243, determining that the terminal is located in the third distributed location area.

In the above embodiment of the present invention, the positioning entity stores the CE level distribution condition in each cell, and the positioning entity may narrow the current position of the terminal to an area under a certain cell according to the received CE level (CE level is set to 1) and the serving cell identifier. If the serving cell is found to have a coverage area with CE levels of 1 at two locations, the positioning entity determines the current approximate direction of the terminal according to the obtained incoming wave direction AoA, and further determines the coverage area of which cell level of 1 the UE is currently located in. By the method, the terminal within the coverage enhancement level CE range can be roughly positioned, so that extra terminal overhead caused by positioning the terminal within the CE range is avoided, the terminal complexity is reduced, and the terminal power consumption is saved.

In the 4 th situation, the positioning measurement information includes the coverage enhancement level of the terminal, the serving cell identifier of the terminal, the timing advance and the incoming wave direction; namely, the positioning measurement information further includes: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station; accordingly, step 23 comprises:

step 244, according to the coverage enhancement level of the terminal, correcting the timing advance and the incoming wave direction to obtain a target timing advance and a target incoming wave direction;

step 245, determining the current position of the terminal by using the target timing advance and the target incoming wave direction.

In the above embodiment of the present invention, the positioning entity directly corrects the current TA and AoA values according to the CE level and a certain algorithm, and then determines the current position of the UE according to the corrected TA and AoA values. The terminal positioning precision is improved through the mode.

The second embodiment of the present invention improves a positioning method applied to a positioning entity side, which is capable of positioning a base station by receiving positioning measurement information sent by the base station, and performing rough positioning on a terminal within a coverage enhancement level CE range, thereby avoiding extra terminal overhead caused by positioning the terminal within the CE range, reducing terminal complexity, and saving terminal power consumption.

Third embodiment

As shown in fig. 5, a third embodiment of the present invention provides a positioning method, applied to a base station side, including:

step 31, obtaining positioning measurement information of a terminal, wherein the positioning measurement information comprises a coverage enhancement level of the terminal and a service cell identifier of the terminal;

step 32, determining to use the coverage enhancement level to perform positioning measurement on the terminal;

and step 33, positioning the terminal according to the positioning measurement information.

It should be noted that the positioning method provided in the third embodiment of the present invention is substantially the same as that in the first and second embodiments, and is different in that the base station itself acquires the positioning measurement information of the terminal, and determines to perform the positioning measurement on the terminal using the coverage enhancement level (without the trigger of an external positioning entity), and itself performs the positioning on the terminal according to the positioning measurement information. In short, the base station of the third embodiment of the present invention can implement both the positioning step of the base station of the first embodiment and the positioning step of the positioning entity in the second embodiment.

It should be noted that the positioning measurement information and the positioning method are the same as those of the first and second embodiments, and the description thereof will not be repeated.

Specifically, step 33 includes:

step 331, obtaining pre-stored distribution position area information of different coverage enhancement levels in each cell;

step 332, acquiring a first distribution location area of the coverage enhancement level where the terminal is currently located according to the serving cell identifier and the pre-stored distribution location area information;

step 333, determining that the terminal is located in the first distributed location area.

It should be noted that steps 331 to 333 are the same as steps 231 to 233 in the second embodiment, and are not repeated.

If the positioning measurement information further comprises: timing advance between the base station and the mobile station, step 33 comprises:

step 334, obtaining pre-stored distribution position area information of different coverage enhancement levels under each cell;

step 335, obtaining a first distribution location area of the coverage enhancement level where the terminal is currently located according to the serving cell identifier and the pre-stored distribution location area information;

step 336, determining the distance between the base station and the terminal according to the timing advance;

step 337, determining a second distributed location area located in the first distributed location area according to the distance and the first distributed location area;

step 338, determining that the terminal is located within the second distributed location area.

It should be noted that steps 334 to 338 are the same as steps 234 to 238 in the second embodiment, and are not repeated.

If the positioning measurement information further comprises: the incoming wave direction between the terminal and the base station, step 33 includes:

step 339, obtaining pre-stored distribution position area information of different coverage enhancement grades in each cell;

step 340, obtaining a first distribution location area of the coverage enhancement level where the terminal is currently located according to the serving cell identifier and the pre-stored distribution location area information;

step 341, determining, according to the incoming wave direction, a current position direction of the terminal relative to the base station;

step 342, determining a third distributed location area located in the first distributed location area according to the location direction and the first distributed location area;

step 343, determining that the terminal is located in the third distributed location area.

It should be noted that steps 339 to 343 are the same as steps 239 to 243 in the second embodiment, and are not repeated.

If the positioning measurement information further comprises: the timing advance between the base station and the mobile station and the incoming wave direction between the terminal and the base station, step 33 includes:

344, according to the coverage enhancement level of the terminal, correcting the timing advance and the incoming wave direction to obtain a target timing advance and a target incoming wave direction;

step 345, determining the current position of the terminal by using the target timing advance and the target incoming wave direction.

It should be noted that steps 344 to 345 are the same as steps 244 to 245 in the second embodiment, and are not repeated.

In summary, the first, second and third embodiments of the present invention respectively describe the positioning method of the base station side and the positioning method of the positioning entity side in detail, and in order to describe the above positioning process more clearly, the following describes the positioning method provided by the embodiments of the present invention with reference to fig. 6 and 7 specifically:

as shown in fig. 6, the positioning method using CE level and serving cell id as positioning measurement information is as follows:

the base station obtains the current CElevel of the terminal according to the process (such as preamble process) of interacting with the terminal; the base station receives a relevant positioning measurement request, such as an LPPa (LTE positioning protocol) message sent by an evolved serving mobile location center E-SMLC in fig. 6, which includes an indication that CE level can be used for positioning measurement (or CE level positioning mode is used for a terminal within CE range); or a positioning measurement request triggered by the base station selects a CE level mode for positioning according to the positioning precision; or the eNB receives a positioning measurement request message from an NB-IOT positioning entity of the narrowband Internet of things, wherein the positioning measurement request message comprises an indication that CE level can be used for positioning measurement; the entity from which a particular positioning measurement request originates is not limited.

The base station uses the obtained CE level and the serving cell identifier as positioning measurement information, and sends the positioning measurement information to a corresponding positioning entity, for example, the positioning measurement information is sent to the E-SMLC through LPPa message, or the base station autonomously calculates the terminal position through the positioning measurement information under the self-positioning condition of the base station, or the base station sends the positioning measurement information to the NB-IOT positioning entity.

After receiving the positioning measurement information, the corresponding positioning entity may roughly determine the current location of the UE according to the CE level and the serving cell identifier. For example, the positioning entity stores the CE level distribution in each cell, and may narrow the current location of the terminal to an area in a certain cell according to the received CE level and the serving cell identifier. As shown in fig. 7, according to the serving cell identifier (cell 1) and the CE level1, an approximate area where the terminal is currently located is determined.

By the method, the terminal within the terminal range can be roughly positioned, extra terminal overhead caused by positioning the terminal within the CE range is avoided, the terminal complexity is reduced, and the terminal power consumption is saved.

It should be noted that, as the terminal moves, the CE range where the terminal is located may change, for example, the CE range moves to the normal LTE coverage range, or the CE level1 moves to the coverage range of the CE level 3, and at this time, the base station may notify the positioning entity of the updated CE level and the current serving cell.

Specifically, the positioning method based on the positioning measurement information of CE level, serving cell, AoA, and TA is as follows:

in this embodiment, multiple areas may exist in a cell, where CE levels are the same and are within a CE level coverage area, and the overhead of measuring accurate AoA or TA is relatively large, and power consumption is high, at this time, the current UE location information may be determined according to the CE level and the serving cell, in combination with the rough AoA or TA information.

The base station obtains the current CElevel of the terminal, the current rough AoA and TA values according to the process (such as preamble process) of interacting with the terminal;

the base station determines to adopt a CE level mode to carry out positioning measurement according to a related positioning measurement request triggered externally or by the base station; the entity from which a particular positioning measurement request originates is not limited.

And the base station reports the current CE level, the service cell identification, and/or the current rough AoA and/or the TA value of the terminal to the positioning entity as a positioning measurement result. The positioning entity roughly calculates the current position of the UE according to the received information, for example, according to the CE level and the service cell identifier, finds that the service cell has a coverage range with two CE levels of 1, and then determines the current approximate direction of the terminal according to the obtained AoA information, and further determines which cell level is equal to the coverage range of 1; or the positioning entity determines the approximate distance between the terminal and the base station according to the obtained TA information, and further determines the coverage range of which cell level is equal to 1 in which the terminal is currently located; or the positioning entity directly corrects the current TA and AOA values according to the CE level value and a certain algorithm, and then determines the current position of the terminal according to the corrected TA and AOA values. It should be noted that, if the CE level changes, the base station updates the positioning measurement result information and sends the information to the positioning entity.

Fourth embodiment

As shown in fig. 8, a fourth embodiment of the present invention provides a positioning method, applied to a base station side, including:

step 41, receiving a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication of performing positioning measurement on a terminal by using a preset coverage enhancement level;

step 42, positioning measurement is carried out on the terminal by utilizing the preset coverage enhancement grade;

and 43, sending the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result.

In the fourth embodiment of the present invention, a more accurate positioning measurement result is obtained by repeatedly transmitting uplink data or downlink data at a preset coverage enhancement level CE level. It should be noted that the positioning measurement request received by the base station may be triggered by an external preset positioning entity, or may be triggered by an internal module of the base station, which is not specifically limited herein. The external preset positioning entity can be an evolved serving mobile location center E-SMLC or a mobility management entity MME or other NB-IoT entity, which is not limited herein.

Specifically, when the terminal is located by using the TA + AoA method, step 42 includes:

step 421, sending indication information to a terminal, where the indication information is used to indicate that the preset coverage enhancement level is currently used for performing positioning measurement on the terminal;

step 422, receiving uplink data repeatedly sent by the terminal based on the preset coverage enhancement level;

step 423, measuring the timing advance between the base station and the mobile station and the incoming wave direction between the terminal and the base station according to the uplink data, and performing positioning measurement on the terminal according to the timing advance and the incoming wave direction.

The base station performs TA + AoA measurement by using the CE level (or the number of repetitions) expected to be used, for example, if the TA mode is a Type 1TA mode, when the base station configures the receiving and transmitting time difference reported by the terminal, the base station indicates the used CE level (or the number of repetitions), and the terminal side repeatedly transmits uplink data according to the specified CE level (or the number of repetitions), so that the base station can measure the receiving and transmitting time difference and the AoA value of the base station side for multiple times, and obtain a more accurate positioning measurement result; if the Type 2TA is adopted, the base station repeatedly initiates a specific contention-free random access process according to the expected used CE level (or the repeated times). The number of repeated sending N and the CE level have a one-to-one correspondence, which depends on pre-configuration or network side configuration.

Specifically, when the terminal is located by using the UTDOA method, step 42 includes:

step 424, determining configuration information of the channel sounding reference signal according to the preset coverage enhancement level and sending the configuration information to the terminal;

step 425, receiving the channel sounding reference signal transmitted by the terminal according to the configuration information, and performing positioning measurement on the terminal according to the channel sounding reference signal.

Or step 42 comprises:

step 426, sending the preset coverage enhancement level to a terminal, so that the terminal configures the channel sounding reference signal according to the preset coverage enhancement level;

step 427, receiving the configured channel sounding reference signal sent by the terminal, and performing positioning measurement on the terminal according to the channel sounding reference signal.

In the fourth embodiment of the invention, a base station adopts the CE level expected to be used to configure the SRS in the UTDOA positioning; for example, the base station determines the configuration of the SRS signal in UTDOA according to the desired CE level and sends the SRS signal to the terminal; or directly configuring the used CE level or the number of repetitions in the CE scheme to the terminal, and adjusting, by the terminal, the period and the number of times of transmitting the SRS signal (for example, increasing the number of transmission repetitions of the SRS signal, etc.) according to the CE level (or the number of repetitions in the CE scheme). The higher the CE level is, the more the corresponding repeated transmission times are (the one-to-one correspondence between the repeated transmission times and the CE level depends on pre-configuration or network side configuration).

As shown in fig. 9, the TA + AoA positioning measurement using the specified CE level method is performed as follows:

the base station receives a relevant positioning measurement request from outside (e.g., E-SMLC) or inside, where the relevant positioning measurement request includes a CE level (or a number of times of repeated transmission in a CE mode) expected to be used in a positioning measurement process, and the CE level is 1 (or the number of times of repeated transmission in the CE mode is N) as expected.

The base station performs TA + AoA measurement by using the CE level (or the number of repetitions) expected to be used, for example, if the TA is a Type 1TA mode, when the base station configures the receiving and transmitting time difference reported by the terminal, the base station indicates the used CE level (or the number of repetitions), and the terminal side repeatedly transmits UL data according to the specified CE level (or the number of repetitions), so that the base station can measure the receiving and transmitting time difference and the AoA value of the base station side for multiple times, and obtain a more accurate positioning measurement result; if the Type 2TA is adopted, the base station repeatedly initiates a specific contention-free random access process according to the expected used CE level (or the repeated times); the number of repeated sending N and the CE level have a one-to-one correspondence, which depends on pre-configuration or network side configuration.

And the base station sends the obtained TA and AoA measurement results to a positioning entity for calculating the position of the terminal. When the cell is positioned in a basement or other places with path loss greatly exceeding that of common LTE equipment, the multi-path benefit is more outstanding, and the base station or the terminal repeatedly transmits downlink DL data or uplink UL data under the coverage of CE to obtain a plurality of measurement results.

The embodiment is also applicable to other positioning methods, such as UTDOA, and at this time, the base station needs to determine the configuration of the SRS signal in UTDOA according to the expected CElevel to be used and send the configuration to the terminal; or directly configuring the used level or repetition number for the terminal, and the terminal side adjusting the period and the number of times of sending the SRS signal (for example, increasing the sending repetition number of the SRS signal, etc.) according to the level (or repetition number) of the CE.

The embodiment is also applicable to the case that the terminal is not currently in the CE coverage (for example, under normal coverage), and at this time, if the terminal supports the transmission mode under the CE coverage, the terminal repeats the transmission of the uplink data for N times according to the indication of the base station.

In summary, the fourth embodiment of the present invention obtains more measurement results than in the actual normal measurement situation by repeatedly sending uplink data or downlink data at the preset CE level, reduces interference caused by multipath effect, and improves measurement accuracy, thereby obtaining more accurate positioning measurement results.

Fifth embodiment

As shown in fig. 10, a fifth embodiment of the present invention further provides a positioning method, applied to a base station side, including:

step 51, acquiring the coverage enhancement level of the terminal at present;

step 52, receiving a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication of performing positioning measurement on a terminal by using a coverage enhancement level greater than or equal to a coverage enhancement level at which the terminal is currently located;

step 53, determining a target coverage enhancement level which is greater than or equal to the coverage enhancement level of the terminal at present, and performing positioning measurement on the terminal by using the target coverage enhancement level;

and step 54, sending the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result.

The fifth embodiment of the present invention obtains a more accurate positioning measurement result by using a manner of repeatedly transmitting uplink data or downlink data at a higher CE level. It should be noted that the positioning measurement request received by the base station may be triggered by an external preset positioning entity, or may be triggered by an internal module of the base station, which is not specifically limited herein. The external preset positioning entity can be an evolved serving mobile location center E-SMLC or a mobility management entity MME or other NB-IoT entity, which is not limited herein.

Specifically, when the terminal is located by using the TA + AoA method, step 53 includes:

step 531, sending indication information to a terminal, where the indication information is used to indicate that the target coverage enhancement level is currently used to perform positioning measurement on the terminal;

step 532, receiving the uplink data repeatedly sent by the terminal based on the target coverage enhancement level;

step 533, measuring a timing advance between the base station and the mobile station and an incoming wave direction between the terminal and the base station according to the uplink data, and performing positioning measurement on the terminal according to the timing advance and the incoming wave direction.

The base station performs TA + AoA measurement by using a CE level (or repetition number) higher than the CE level currently described by the terminal, for example, if the TA mode is a Type 1TA mode, when the base station configures a receiving and transmitting time difference reported by the terminal, the base station indicates the CE level (or repetition number) determined by the base station, and the terminal side repeatedly transmits uplink data according to the specified CE level (or repetition number), so that the base station can measure the receiving and transmitting time difference and the AoA value of the base station side for multiple times, and obtain a more accurate positioning measurement result; if the access point is Type 2TA, the base station repeatedly initiates a specific contention-free random access process according to the CE level (or the repetition times) determined by the base station to be used. The number of repeated sending N and the CE level have a one-to-one correspondence, which depends on pre-configuration or network side configuration.

Specifically, when the terminal is located by using the UTDOA method, step 53 includes:

step 534, determining the configuration information of the channel sounding reference signal according to the target coverage enhancement level and sending the configuration information to the terminal;

step 535, receiving the channel sounding reference signal transmitted by the terminal according to the configuration information, and performing positioning measurement on the terminal according to the channel sounding reference signal.

Alternatively, step 53 comprises:

step 536, sending the target coverage enhancement level to a terminal, so that the terminal configures the channel sounding reference signal according to the target coverage enhancement level;

step 537, receiving the configured channel sounding reference signal sent by the terminal, and performing positioning measurement on the terminal according to the channel sounding reference signal.

The base station configures the SRS in the UTDOA positioning by adopting the CE level higher than the current terminal, for example, the base station determines the configuration of the SRS signal in the UTDOA according to the expected CE level and sends the configuration to the terminal; or directly configuring the used CE level or the number of repetitions in the CE scheme to the terminal, and adjusting, by the terminal, the period and the number of times of transmitting the SRS signal (for example, increasing the number of transmission repetitions of the SRS signal, etc.) according to the CE level (or the number of repetitions in the CE scheme). The specific CE level adopted by the base station depends on the specific implementation of the base station, for example, the CE level at which the terminal is currently located is CE level1, the base station may adopt CE level 2, or may adopt CE level 3, and the higher the CE level is, the more the corresponding repeated transmission times are (the one-to-one correspondence between the repeated transmission times and the CE level, which depends on the pre-configuration or the network side configuration).

As shown in fig. 11, the process of using higher CE level to perform UTDOA positioning measurement is as follows:

the base station obtains the current CElevel of the terminal according to the process (such as preamble process) of interacting with the terminal, for example, the CE level is 1; the base station receives a relevant positioning request from outside (such as E-SMLC) or inside, wherein the relevant positioning request comprises an indication for UTDOA positioning measurement in a higher CE level mode; the base station configures the SRS in the UTDOA positioning by adopting the CElevel higher than the current terminal, for example, the base station determines the configuration of the SRS signal in the UTDOA according to the expected used CE level and sends the configuration to the terminal; or directly configuring the used CE level or the number of repetitions in the CE scheme to the terminal, and adjusting, by the terminal, the period and the number of times of transmitting the SRS signal (for example, increasing the number of transmission repetitions of the SRS signal, etc.) according to the CE level (or the number of repetitions in the CE scheme). The specific adopted CElevel of the base station depends on the specific implementation of the base station, for example, the CE level at which the terminal is currently located is CE level1, the base station may adopt CE level 2, or may adopt CE level 3, and the higher the CE level is, the more the corresponding repeated transmission times are (the one-to-one correspondence between the repeated transmission times and the CE level, which depends on the pre-configuration or the network side configuration). Meanwhile, the base station informs the LMU of the SRS configuration of the terminal (which can be communicated through the E-SMLC).

The embodiment is also applicable to other positioning methods, such as TA + AoA, where the specific level adopted by the base station depends on the specific implementation of the base station.

The embodiment is also applicable to the case where the terminal is not currently in the CE coverage (e.g., under normal coverage), and at this time, if the terminal supports the transmission mode under CE coverage, the base station may use any CE level to perform positioning measurement related configuration.

In summary, the fifth embodiment of the present invention obtains more measurement results than in the actual normal measurement situation by repeatedly sending uplink data or downlink data at a higher CE level, reduces interference caused by multipath effects, improves measurement accuracy, and obtains a more accurate positioning measurement result.

Sixth embodiment

As shown in fig. 12, a sixth embodiment of the present invention provides a positioning apparatus applied to a base station side, including:

a first information obtaining module 61, configured to obtain positioning measurement information of a terminal, where the positioning measurement information includes a coverage enhancement level where the terminal is currently located and a serving cell identifier of the terminal;

a first request receiving module 62, configured to receive a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication that positioning measurement is performed on a terminal using the coverage enhancement level;

an information sending module 63, configured to send, according to the positioning measurement request, the positioning measurement information of the terminal to a preset positioning entity, so that the preset positioning entity can position the terminal according to the positioning measurement information.

Specifically, in the sixth embodiment of the present invention, the positioning measurement information further includes: timing advance between the base station and the mobile station.

Specifically, in the sixth embodiment of the present invention, the positioning measurement information further includes: the direction of the incoming wave between the terminal and the base station.

It should be noted that the positioning device provided in the sixth embodiment of the present invention is a positioning device corresponding to the positioning method provided in the first embodiment, and all embodiments of the positioning method provided in the first embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Seventh embodiment

In order to better achieve the above object, as shown in fig. 13, a seventh embodiment of the present invention further provides a positioning device, including: a processor 700; and a memory 720 connected to the processor 700 through the bus interface 710, wherein the memory 720 is used for storing programs and data used by the processor 700 when executing operations, and when the processor 700 calls and executes the programs and data stored in the memory 720, the following functional modules are implemented:

It should be noted that the positioning device provided in the seventh embodiment of the present invention is a positioning device corresponding to the positioning method provided in the first embodiment, and all embodiments of the positioning method provided in the first embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Eighth embodiment

As shown in fig. 14, an eighth embodiment of the present invention provides a positioning apparatus, applied to a positioning entity side, including:

a request sending module 81, configured to send a positioning measurement request to a base station, where the positioning measurement request includes an indication of performing positioning measurement on a terminal using a coverage enhancement level;

an information receiving module 82, configured to receive positioning measurement information of the terminal returned by the base station, where the positioning measurement information includes a coverage enhancement level at which the terminal is currently located and a serving cell identifier of the terminal;

and the first positioning module 83 is configured to position the terminal according to the positioning measurement information.

Specifically, in an eighth embodiment of the present invention, the first positioning module includes:

Specifically, in the eighth embodiment of the present invention, the positioning measurement information further includes: timing advance between a base station and a mobile station;

the first positioning module comprises:

Specifically, in the eighth embodiment of the present invention, the positioning measurement information further includes: the incoming wave direction between the terminal and the base station;

the first positioning module comprises:

Specifically, in the eighth embodiment of the present invention, the positioning measurement information further includes: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station;

the first positioning module comprises:

It should be noted that the positioning device provided in the eighth embodiment of the present invention is a positioning device corresponding to the positioning method provided in the second embodiment, and all embodiments of the positioning method provided in the second embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Ninth embodiment

In order to better achieve the above object, as shown in fig. 13, a ninth embodiment of the present invention further provides a positioning device, including: a processor 700; and a memory 720 connected to the processor 700 through the bus interface 710, wherein the memory 720 is used for storing programs and data used by the processor 700 when executing operations, and when the processor 700 calls and executes the programs and data stored in the memory 720, the following functional modules are implemented:

It should be noted that the positioning device provided in the ninth embodiment of the present invention is a positioning device corresponding to the positioning method provided in the second embodiment, and all embodiments of the positioning method provided in the second embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Tenth embodiment

As shown in fig. 15, a tenth embodiment of the present invention further provides a positioning apparatus applied to a base station side, including:

a second information obtaining module 101, configured to obtain positioning measurement information of a terminal, where the positioning measurement information includes a coverage enhancement level where the terminal is currently located and a serving cell identifier of the terminal;

a method determining module 102, configured to determine to perform positioning measurement on the terminal using the coverage enhancement level;

and the second positioning module 103 is configured to position the terminal according to the positioning measurement information.

Specifically, in a tenth embodiment of the present invention, the second positioning module includes:

Specifically, in the tenth embodiment of the present invention, the positioning measurement information further includes: timing advance between a base station and a mobile station;

the second positioning module includes:

Specifically, in the tenth embodiment of the present invention, the positioning measurement information further includes: the incoming wave direction between the terminal and the base station;

the second positioning module includes:

Specifically, in the tenth embodiment of the present invention, the positioning measurement information further includes: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station;

the second positioning module includes:

It should be noted that the positioning device provided in the tenth embodiment of the present invention is a positioning device corresponding to the positioning method provided in the third embodiment, and all embodiments of the positioning method provided in the third embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Eleventh embodiment

In order to better achieve the above object, as shown in fig. 13, an eleventh embodiment of the present invention further provides a positioning device, including: a processor 700; and a memory 720 connected to the processor 700 through the bus interface 710, wherein the memory 720 is used for storing programs and data used by the processor 700 when executing operations, and when the processor 700 calls and executes the programs and data stored in the memory 720, the following functional modules are implemented:

It should be noted that the positioning device provided in the eleventh embodiment of the present invention is a positioning device corresponding to the positioning method provided in the third embodiment, and all embodiments of the positioning method provided in the third embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Twelfth embodiment

As shown in fig. 16, a twelfth embodiment of the present invention further provides a positioning apparatus applied to a base station side, including:

a second request receiving module 121, configured to receive a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication of performing positioning measurement on a terminal by using a preset coverage enhancement level;

a first measurement module 122, configured to perform positioning measurement on the terminal according to the preset coverage enhancement level;

a first measurement sending module 123, configured to send the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result.

Specifically, in a twelfth embodiment of the present invention, a first measurement module includes:

Specifically, in a twelfth embodiment of the present invention, the first measurement module includes:

a first level sending unit, configured to send the preset coverage enhancement level to a terminal, so that the terminal configures the channel sounding reference signal according to the preset coverage enhancement level;

It should be noted that the positioning device provided by the twelfth embodiment of the present invention is a positioning device corresponding to the positioning method provided by the fourth embodiment, and all embodiments of the positioning method provided by the fourth embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Thirteenth embodiment

In order to better achieve the above object, as shown in fig. 13, a thirteenth embodiment of the present invention further provides a positioning apparatus, including: a processor 700; and a memory 720 connected to the processor 700 through the bus interface 710, wherein the memory 720 is used for storing programs and data used by the processor 700 when executing operations, and when the processor 700 calls and executes the programs and data stored in the memory 720, the following functional modules are implemented:

It should be noted that the positioning device provided in the thirteenth embodiment of the present invention is a positioning device corresponding to the positioning method provided in the fourth embodiment, and all embodiments of the positioning method provided in the fourth embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Fourteenth embodiment

As shown in fig. 17, a fourteenth embodiment of the present invention further provides a positioning apparatus, which is applied to a base station side, and includes:

a level obtaining module 141, configured to obtain a coverage enhancement level at which the terminal is currently located;

a third request receiving module 142, configured to receive a positioning measurement request triggered by a preset positioning entity, where the positioning measurement request includes an indication that positioning measurement is performed on a terminal using a coverage enhancement level that is greater than or equal to a coverage enhancement level at which the terminal is currently located;

a second measurement module 143, configured to determine a target coverage enhancement level that is greater than or equal to a coverage enhancement level at which the terminal is currently located, and perform positioning measurement on the terminal by using the target coverage enhancement level;

a second measurement sending module 144, configured to send the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result.

Specifically, in a fourteenth embodiment of the present invention, the second measurement module includes:

a second level sending unit, configured to send the target coverage enhancement level to a terminal, so that the terminal configures the channel sounding reference signal according to the target coverage enhancement level;

It should be noted that the positioning device provided by the fourteenth embodiment of the present invention is a positioning device corresponding to the positioning method provided by the fifth embodiment, and all embodiments of the positioning method provided by the fifth embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

Fifteenth embodiment

In order to better achieve the above object, as shown in fig. 13, a fifteenth embodiment of the present invention further provides a positioning apparatus, including: a processor 700; and a memory 720 connected to the processor 700 through the bus interface 710, wherein the memory 720 is used for storing programs and data used by the processor 700 when executing operations, and when the processor 700 calls and executes the programs and data stored in the memory 720, the following functional modules are implemented:

It should be noted that the positioning device provided in the fifteenth embodiment of the present invention is a positioning device corresponding to the positioning method provided in the fifth embodiment, and all embodiments of the positioning method provided in the fifth embodiment are applicable to the positioning device, and can achieve the same or similar beneficial effects.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A positioning method is applied to a base station side, and is characterized by comprising the following steps:

acquiring positioning measurement information of a terminal, wherein the positioning measurement information comprises a coverage enhancement level of the terminal, a service cell identifier of the terminal, a timing advance between a base station and a mobile station and an incoming wave direction between the terminal and the base station;

sending the positioning measurement information of the terminal to a preset positioning entity according to the positioning measurement request, so that the preset positioning entity can position the terminal according to the positioning measurement information, specifically:

and correcting the timing advance and the incoming wave direction according to the coverage enhancement grade of the current position of the terminal to obtain a target timing advance and a target incoming wave direction, and determining the current position of the terminal by using the target timing advance and the target incoming wave direction.

2. A positioning method is applied to positioning a solid body side, and is characterized by comprising the following steps:

positioning the terminal according to the positioning measurement information;

wherein the content of the first and second substances,

3. The positioning method of claim 2, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station;

4. The positioning method of claim 2, wherein the positioning measurement information further comprises: the incoming wave direction between the terminal and the base station;

5. The positioning method of claim 2, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station;

6. A positioning method is applied to a base station side, and is characterized by comprising the following steps:

positioning the terminal according to the positioning measurement information;

wherein the content of the first and second substances,

7. The positioning method of claim 6, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station;

8. The positioning method of claim 6, wherein the positioning measurement information further comprises: the incoming wave direction between the terminal and the base station;

9. The positioning method of claim 6, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station;

10. A positioning method is applied to a base station side, and is characterized by comprising the following steps:

sending the measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result;

wherein the content of the first and second substances,

the step of performing positioning measurement on the terminal by using the preset coverage enhancement level comprises the following steps:

11. The positioning method of claim 10, wherein the step of performing the positioning measurement on the terminal using the preset coverage enhancement level comprises:

12. The positioning method of claim 10, wherein the step of performing the positioning measurement on the terminal using the preset coverage enhancement level comprises:

13. A positioning method is applied to a base station side, and is characterized by comprising the following steps:

acquiring the coverage enhancement level of the terminal at present;

14. The positioning method of claim 13, wherein the step of performing the positioning measurement on the terminal using the target coverage enhancement level comprises:

15. The positioning method of claim 13, wherein the step of performing the positioning measurement on the terminal using the target coverage enhancement level comprises:

16. A positioning device applied to a base station side, comprising:

a first information obtaining module, configured to obtain positioning measurement information of a terminal, where the positioning measurement information includes a coverage enhancement level where the terminal is currently located, a serving cell identifier of the terminal, a timing advance between a base station and a mobile station, and an incoming wave direction between the terminal and the base station;

an information sending module, configured to send, according to the positioning measurement request, the positioning measurement information of the terminal to a preset positioning entity, so that the preset positioning entity can position the terminal according to the positioning measurement information, where the information sending module specifically includes:

17. A positioning device for positioning a solid body, comprising:

the first positioning module is used for positioning the terminal according to the positioning measurement information;

wherein the content of the first and second substances,

the first positioning module comprises:

18. The positioning apparatus of claim 17, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station;

the first positioning module comprises:

19. The positioning apparatus of claim 17, wherein the positioning measurement information further comprises: the incoming wave direction between the terminal and the base station;

the first positioning module comprises:

20. The positioning apparatus of claim 17, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station;

the first positioning module comprises:

21. A positioning device applied to a base station side, comprising:

the second positioning module is used for positioning the terminal according to the positioning measurement information;

wherein the content of the first and second substances,

the second positioning module includes:

22. The positioning apparatus of claim 21, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station;

the second positioning module includes:

23. The positioning apparatus of claim 22, wherein the positioning measurement information further comprises: the incoming wave direction between the terminal and the base station;

the second positioning module includes:

24. The positioning apparatus of claim 22, wherein the positioning measurement information further comprises: timing advance between a base station and a mobile station and an incoming wave direction between a terminal and the base station;

the second positioning module includes:

25. A positioning device applied to a base station side, comprising:

a first measurement sending module, configured to send a measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result;

wherein the content of the first and second substances,

the first measurement module includes:

26. The positioning apparatus of claim 25, wherein the first measurement module comprises:

27. The positioning apparatus of claim 25, wherein the first measurement module comprises:

28. A positioning device applied to a base station side, comprising:

a second measurement sending module, configured to send a measurement result of the positioning measurement to the preset positioning entity, so that the preset positioning entity positions the terminal according to the measurement result;

wherein the content of the first and second substances,

the second measurement module includes:

29. The positioning apparatus of claim 28, wherein the second measurement module comprises:

30. The positioning apparatus of claim 28, wherein the second measurement module comprises: