CN114071707B - Option6 scene communication terminal positioning method - Google Patents
Option6 scene communication terminal positioning method Download PDFInfo
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- CN114071707B CN114071707B CN202210040255.5A CN202210040255A CN114071707B CN 114071707 B CN114071707 B CN 114071707B CN 202210040255 A CN202210040255 A CN 202210040255A CN 114071707 B CN114071707 B CN 114071707B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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Abstract
The invention relates to the technical field of communication network positioning, in particular to a method for positioning an option6 scene communication terminal. The method comprises the steps of establishing RU numbers of physical layer information corresponding to cells according to the physical layer information of the cells; accessing the terminal to a base station, determining the position of the terminal by judging the position of the terminal in the RU by the base station, and storing the data of the terminal; and performing configuration information interaction by the region range information of the RU where the terminal is located, and positioning the terminal according to the serial number of the RU. According to the method, the RUs under the same cell can be identified by the base station by forming a mapping relation between the RUs and the physical layer of the building, so that the RUs carrying information transmission can be associated with corresponding information when the terminal interacts with the cell, the base station interacts with the terminal through the control part RU to realize rapid positioning of the cell, and the clock among the RUs is kept consistent under the same cell by measuring the time difference from the terminal to the RU, so that the positioning effect is improved.
Description
Technical Field
The invention relates to the technical field of communication network positioning, in particular to a method for positioning an option6 scene communication terminal.
Background
With the advent of the 5G era, the internet of things and intellectualization have made higher demands on location-based services, and most of application scenarios of 5G wireless communication are indoors, so that the demand for rapidly and accurately acquiring location information of a mobile device to provide location-based services is more urgent in an indoor environment.
Currently, location positioning based on NR base stations mainly estimates the geographical location of a mobile terminal by estimating the quality of a wireless signal received by the mobile terminal, and there are many positioning algorithms, such as DL-TDOA/UL-TDOA time difference of arrival technique, DL-AoD (downlink departure angle)/UL-AoA (uplink arrival angle), Multi-station round trip time (Multi-RTT), enhanced cell ID (E-CID), and the like. By the method, the 5G base station can perform positioning with higher precision.
The existing indoor positioning of the mobile terminal has the following technical difficulties:
(1) the number of antennas of a base station cell in many indoor scenes is not large, and a pointed beam cannot be formed, so that a positioning algorithm based on the arrival and departure angles of the beam cannot be used;
(2) in an indoor scenario, a base station cell may be connected to multiple radio frequency devices through an EU extension unit, and therefore interaction between the base station cell and a terminal cannot confirm which specific RU is interacted with, and positioning cannot be achieved, and therefore a positioning algorithm based on signal time is also limited in use.
Disclosure of Invention
The present invention is directed to a method for positioning an option6 scene communication terminal, so as to solve the problems in the background art mentioned above.
In order to achieve the above object, the present invention provides a method for positioning an option6 scene communication terminal, comprising the following steps:
s1, according to the physical layer information of the cell, establishing RU number of the physical layer information corresponding to the cell;
s2, accessing the terminal to the base station, the base station determining the position of the terminal by judging the position of the terminal in the RU, and storing the data of the terminal;
and S3, performing information interaction on configuration by the area range information of the RU where the terminal is located, and positioning the terminal according to the number of the RU.
As a further improvement of the present technical solution, in step S1, the step of establishing an RU number of the physical layer information corresponding to the cell includes:
s1.1, deploying a physical layer on a RU, establishing cell information in a base station system, and carrying out information interaction between an MAC layer and the physical layer when the cell information is established;
s1.2, obtaining the information of the physical layer of the cell, and carrying out identification numbering on the RU where each physical layer is located.
As a further improvement of the present technical solution, in step S1.2, while identifying and numbering the RUs in which each physical layer is located, a one-to-one mapping relationship is formed between the RUs and the physical layers.
As a further improvement of the present technical solution, in step S2, the step of determining the location of the terminal includes:
s2.1, accessing the terminal into a cell, reading the current position of the terminal by a base station, and determining the RU coverage area of the terminal;
s2.2, transmitting and receiving signals to and from the RU in the area where the terminal is located through the terminal, and recording the signal intensity between the terminal and the RU;
s2.3, sorting the signal quality list according to the recorded signal strength between the terminal and the RU, and updating the signal quality list immediately according to the real-time condition;
and S2.4, identifying the RUs in the area and storing the signal quality by the cell.
As a further improvement of the present technical solution, in step S3, the step of positioning the terminal according to the RU number includes:
s3.1, selecting 3 or more RUs for a signal quality list currently maintained by a cell by a base station, configuring a terminal to perform signaling interaction with the cell, performing interaction of the terminal and cell positioning information on the selected RUs, and determining the RUs;
and S3.2, collecting and calculating the high-level positioning information of the cell, mapping the positioning information to the determined RU identification number, uploading the positioning structure to a position server, and calculating by the position server to obtain the terminal position.
As a further improvement of the present technical solution, in step S3.1, the process of performing interaction between the terminal and the cell positioning information on the selected RU includes the following cases:
firstly, a cell configuration terminal carries out enhanced uplink SRS reporting, after the terminal reports, a plurality of specified RUs receive signals, a physical layer carries out measurement to obtain UL-SRS-RSRP and reports the UL-SRS-RSRP to a high layer, and the high layer associates the UL-SRS-RSRP result with a determined RU identification number and reports the UL-SRS-RSRP result to a position server through an interface;
secondly, the base station cell configures reference signals between the terminal and the base station, the base station measures the time difference from the terminal to the RU to obtain the round trip time, and the high level of the base station correlates the result with the determined RU identification number and reports the result to the position server through an interface.
Compared with the prior art, the invention has the beneficial effects that:
in the option6 scene communication terminal positioning method, a mapping relation is formed between an RU and a physical layer of a building, so that the RU under the same cell can be identified by a base station, when the terminal interacts with the cell, the RU carrying information transmission can be associated with corresponding information, the base station interacts with the terminal through a control part RU, the cell is quickly positioned, and meanwhile, the clock among a plurality of RUs is kept consistent under the same cell by measuring the time difference from the terminal to the RU, and the positioning effect is improved.
Drawings
FIG. 1 is a flowchart illustrating the overall steps of the present invention;
FIG. 2 is a flowchart of step S1 according to the present invention;
FIG. 3 is a flowchart of step S2 according to the present invention;
FIG. 4 is a flowchart of step S3 of the present invention;
FIG. 5 is a schematic diagram of BBU, EU and RU connection modes of the present invention;
FIG. 6 is a schematic diagram of BBU, EU and RU structures according to the present invention;
FIG. 7 is a second schematic diagram of BBU, EU and RU structures of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a method for positioning an option6 scene communication terminal, please refer to fig. 1-7, comprising the following steps:
s1, according to the physical layer information of the cell, establishing RU number of the physical layer information corresponding to the cell;
the step of establishing the RU number of the physical layer information corresponding to the cell comprises the following steps:
s1.1, deploying a physical layer on a RU, establishing cell information in a base station system, and carrying out information interaction between an MAC layer and the physical layer when the cell information is established;
s1.2, obtaining the information of the physical layer of the cell, identifying and numbering the RU where each physical layer is located, and forming a one-to-one mapping relation between the RUs and the physical layers while identifying and numbering the RUs where each physical layer is located.
S2, accessing the terminal to the base station, the base station determining the position of the terminal by judging the position of the terminal in the RU, and storing the data of the terminal;
the step of determining the position of the terminal comprises the following steps:
s2.1, accessing the terminal into a cell, reading the current position of the terminal by a base station, and determining the RU coverage area of the terminal;
s2.2, transmitting and receiving signals to and from the RU in the area where the terminal is located through the terminal, and recording the signal intensity between the terminal and the RU;
s2.3, sorting the signal quality list according to the recorded signal strength between the terminal and the RU, and updating the signal quality list immediately according to the real-time condition;
and S2.4, identifying the RUs in the area and storing the signal quality by the cell.
S3, performing information interaction on configuration by the regional range information of the RU where the terminal is located, and positioning the terminal according to the RU number;
the step of positioning the terminal according to the RU number comprises the following steps:
s3.1, selecting 3 or more RUs for a signal quality list currently maintained by a cell by a base station, configuring a terminal to perform signaling interaction with the cell, performing interaction of the terminal and cell positioning information on the selected RUs, and determining the RUs;
the process of terminal interaction with cell location information on a selected RU includes the following cases:
firstly, a cell configuration terminal carries out enhanced uplink SRS reporting, after the terminal reports, a plurality of specified RUs receive signals, a physical layer carries out measurement to obtain UL-SRS-RSRP and reports the UL-SRS-RSRP to a high layer, and the high layer associates the UL-SRS-RSRP result with a determined RU identification number and reports the UL-SRS-RSRP result to a position server through an interface;
base station cell configuration terminal and base station send reference signal, base station measures time difference from terminal to RU to obtain round trip time, base station high level associates result with determined RU identification number, and reports to position server through interface;
and S3.2, collecting and calculating the high-level positioning information of the cell, mapping the positioning information to the determined RU identification number, uploading the positioning structure to a position server, and calculating by the position server to obtain the terminal position.
Referring to fig. 5, the base station described in the present invention includes a BBU, an EU, and an RU, where the BBU is a baseband processing unit and is used to control the whole base station service and maintain the management system; the EU is an extension unit, is a data aggregation unit of the connected radio frequency RUs and is responsible for communication between the BBU and the RUs; the RU is a radio frequency unit, is connected with the EU and is deployed indoors.
Examples are: referring to fig. 6 and 7, a base station BBU is connected with a plurality of EUs, wherein EU1 is connected with RU1/RU2/RU3/RU4/RU5, and the base station is configured with cell 1, and RU2, RU3, RU4 and RU5 belong to cell 1;
when a cell 1 is established, through interaction of MAC and a physical layer, a cell high layer forms a corresponding RU identification number {2, 3, 4, 5 };
when a terminal accesses a cell, just in the coverage range of RUs 2, RU3 and RU4, a terminal uplink signal is sent to the three RUs, the terminal can receive cell downlink signals of the three RUs, after physical layers corresponding to the three RUs interact with the terminal, the cell can acquire the signal quality of the terminal for receiving and sending signals on the three RUs, the cell stores the RU number and the signal quality, and updates a list in real time;
when a terminal needs to be located, a cell may configure RU2, RU3, and RU4 to interact with the terminal, and the interaction may include, but is not limited to, the following:
(1) configuring a terminal to report an uplink enhanced SRS, measuring the RSRP intensity of the UL SRS on three corresponding RUs by a base station cell, corresponding to the RU numbers, and reporting the RSRP intensity to a position server;
(2) configuring a reference signal mutually transmitted between a terminal and a base station, transmitting and receiving the reference signal with the terminal on three corresponding RUs by a base station cell, calculating and measuring Rx-Tx time difference on the three corresponding RUs by the base station cell according to interaction, corresponding to RU numbers, and reporting the Rx-Tx time difference to a position server.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A method for positioning an option6 scene communication terminal is characterized in that: the method comprises the following steps:
s1, according to the physical layer information of the cell, establishing RU number of the physical layer information corresponding to the cell;
s2, accessing the terminal to the base station, the base station determining the position of the terminal by judging the position of the terminal in the RU, and storing the data of the terminal;
s3, performing information interaction on configuration by the regional range information of the RU where the terminal is located, and positioning the terminal according to the RU number;
in step S3, the step of locating the terminal according to the RU number includes:
s3.1, selecting 3 or more RUs for a signal quality list currently maintained by a cell by a base station, configuring a terminal to perform signaling interaction with the cell, performing interaction of the terminal and cell positioning information on the selected RUs, and determining the RUs;
s3.2, collecting and calculating the positioning information of the high layer of the cell, mapping the positioning information to the determined RU identification number, uploading the positioning structure to a position server, and calculating by the position server to obtain the terminal position;
in step S3.1, the process of interacting the terminal with the cell location information on the selected RU includes the following cases:
firstly, a cell configuration terminal carries out enhanced uplink SRS reporting, after the terminal reports, a plurality of specified RUs receive signals, a physical layer carries out measurement to obtain UL-SRS-RSRP and reports the UL-SRS-RSRP to a high layer, and the high layer associates the UL-SRS-RSRP result with a determined RU identification number and reports the UL-SRS-RSRP result to a position server through an interface;
base station cell configuration terminal and base station send reference signal, base station measures time difference from terminal to RU to obtain round trip time, base station high level associates result with determined RU identification number, and reports to position server through interface;
in step S2, the step of determining the location of the terminal includes:
s2.1, accessing the terminal into a cell, reading the current position of the terminal by a base station, and determining the RU coverage area of the terminal;
s2.2, transmitting and receiving signals to and from the RU in the area where the terminal is located through the terminal, and recording the signal intensity between the terminal and the RU;
s2.3, sorting the signal quality list according to the recorded signal strength between the terminal and the RU, and updating the signal quality list immediately according to the real-time condition;
and S2.4, identifying the RUs in the area and storing the signal quality by the cell.
2. The option6 scene communication terminal positioning method according to claim 1, wherein: in step S1, the step of establishing the RU number of the physical layer information corresponding to the cell includes:
s1.1, deploying a physical layer on a RU, establishing cell information in a base station system, and carrying out information interaction between an MAC layer and the physical layer when the cell information is established;
s1.2, obtaining the information of the physical layer of the cell, and carrying out identification numbering on the RU where each physical layer is located.
3. The option6 scene communication terminal positioning method according to claim 2, wherein: in step S1.2, while the identification number is given to the RU in which each physical layer is located, a one-to-one mapping relationship is formed between the RUs and the physical layers.
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Address after: 518000 Room 101, building C4, Zone C, Fuhai international science and Technology Park, Zhancheng community, Fuhai street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Jiaxian Communication Technology Co.,Ltd. Address before: 518103 Room 101, building C4, Zone C, Fuhai international science and Technology Park, Zhancheng community, Fuhai street, Bao'an District, Shenzhen, Guangdong Province Patentee before: Shenzhen Jiaxian communication equipment Co.,Ltd. |
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