CN104394590A - Positioning method, device and system - Google Patents
Positioning method, device and system Download PDFInfo
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- CN104394590A CN104394590A CN201410696745.6A CN201410696745A CN104394590A CN 104394590 A CN104394590 A CN 104394590A CN 201410696745 A CN201410696745 A CN 201410696745A CN 104394590 A CN104394590 A CN 104394590A
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Abstract
An embodiment of the invention discloses a positioning method, device and system, and relates to the technical field of positioning. The use ratio of an uplink transmission resource is increased. The positioning method includes the steps: determining positioning precision of terminal equipment and resource information needed by realizing the positioning precision by network side equipment; transmitting an indication message to the terminal equipment; evaluating the position of the terminal equipment according to a positioning algorithm and the distance/differential distance of positioning signals reaching a plurality of receiving points. The indication message comprises the resource information and positioning signal contents and is used for enabling the terminal equipment to transmit the positioning signals according to the resource information and the positioning signal contents, and the receiving points are involved in evaluating the position of the terminal equipment. The positioning method can be used for the positioning process of the terminal equipment.
Description
Technical Field
The present invention relates to the field of positioning technologies, and in particular, to a positioning method, apparatus, and system.
Background
At present, when a terminal device initiates a service with a positioning requirement, an uplink positioning technology can be adopted to position the terminal device. The basic principle of the uplink positioning technology is as follows: the terminal equipment sends positioning signals to different receiving points according to specific resource information, the network side equipment estimates the distance/distance Difference from the terminal equipment to the different receiving points according to the positioning signals, and then estimates the position Of the terminal equipment by utilizing a TOA (Time Of Arrival) positioning algorithm or a TDOA (Time Difference Of Arrival) positioning algorithm; when the network side equipment adopts the determined positioning algorithm to realize the positioning of the terminal, the terminal equipment sends positioning signals to different receiving points according to the specific resource information.
Since the positioning accuracy required by the service initiated in the terminal device and having the positioning requirement is different, the problem is not considered in the process of positioning the terminal device by using the uplink positioning technology. Thus, when the requirement for the positioning accuracy of the service with the positioning requirement initiated by the terminal device is low and the "specific resource information" is more, the terminal may use the "specific resource information" to send the positioning signal to different receiving points, which may cause great resource waste, thereby resulting in a low utilization rate of the uplink transmission resource.
Disclosure of Invention
The embodiment of the invention provides a positioning method, a positioning device and a positioning system, which are used for improving the utilization rate of uplink transmission resources.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a positioning method is provided, including:
the network side equipment determines the positioning precision of the terminal equipment and resource information required by meeting the positioning precision;
sending an indication message to the terminal equipment; the indication message contains the resource information and the content of the positioning signal, and is used for enabling the terminal equipment to send the positioning signal according to the resource information and the content of the positioning signal;
estimating the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
With reference to the first aspect, in a first possible implementation manner, the determining, by the network side device, the positioning accuracy of the terminal device includes:
the method comprises the steps that network side equipment receives positioning accuracy of terminal equipment sent by the terminal equipment; or,
the method comprises the steps that network side equipment receives an identifier of a service with a positioning requirement in the terminal equipment, which is sent by the terminal equipment, determines the positioning precision required by the service according to the identifier of the service, and takes the positioning precision required by the service as the positioning precision of the terminal equipment.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the resource information includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
In a second aspect, a positioning method is provided, including:
the terminal equipment receives an indication message sent by the network side equipment; the indication message contains resource information meeting the positioning precision of the terminal equipment and the content of a positioning signal;
transmitting the positioning signal according to the resource information and the content of the positioning signal; enabling the network side equipment to estimate the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
With reference to the second aspect, in a first possible implementation manner, the positioning signal includes: an uplink sounding signal or an uplink pilot signal.
With reference to the second aspect, in a second possible implementation manner, before the terminal device receives the indication message sent by the network side device, the method further includes:
sending the positioning precision containing the terminal equipment to network side equipment so that the network side equipment determines resource information meeting the positioning precision of the terminal equipment;
or sending an identifier of a service with a positioning requirement in the terminal device to a network side device, so that the network side device determines resource information meeting the positioning accuracy of the terminal device according to the identifier of the service.
With reference to the second aspect, the first possible implementation manner, or the second possible implementation manner of the second aspect, in a second possible implementation manner, the resource information includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
In a third aspect, a network-side device is provided, including:
the device comprises a determining unit, a processing unit and a processing unit, wherein the determining unit is used for determining the positioning precision of the terminal equipment and the resource information required by meeting the positioning precision;
a sending unit, configured to send an indication message to the terminal device; the indication message contains the resource information and the content of the positioning signal, and is used for enabling the terminal equipment to send the positioning signal according to the resource information and the content of the positioning signal;
the positioning unit is used for estimating the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
With reference to the third aspect, in a first possible implementation manner, the network side device further includes: the receiving unit is used for receiving the positioning precision of the terminal equipment sent by the terminal equipment; or, the network side device further includes: the receiving unit is used for receiving the service identification which is sent by the terminal equipment and has the positioning requirement in the terminal equipment; the determining unit is further configured to determine, according to the identifier of the service, a positioning accuracy required by the service, and use the positioning accuracy required by the service as the positioning accuracy of the terminal device.
With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the resource information includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
In a fourth aspect, a terminal device is provided, including:
the receiving unit is used for receiving an indication message sent by the network side equipment; the indication message contains resource information meeting the positioning precision of the terminal equipment and the content of a positioning signal;
a sending unit, configured to send the positioning signal according to the resource information and the content of the positioning signal; enabling the network side equipment to estimate the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
With reference to the fourth aspect, in a first possible implementation manner, the positioning signal includes: an uplink sounding signal or an uplink pilot signal.
With reference to the fourth aspect, in a second possible implementation manner,
the sending unit is further configured to send, to a network side device, the positioning accuracy including the terminal device, so that the network side device determines resource information that meets the positioning accuracy of the terminal device;
or, the sending unit is further configured to send an identifier of a service that requires positioning in the terminal device to a network side device, so that the network side device determines, according to the identifier of the service, resource information that meets the positioning accuracy of the terminal device.
In a fifth aspect, there is provided a positioning system comprising: any network side device as provided in the third aspect, and/or any terminal device as provided in the fourth aspect.
According to the positioning method, the positioning device and the positioning system provided by the embodiment of the invention, the terminal equipment sends the positioning signal according to the resource information which is determined by the network side equipment and is required by meeting the positioning precision of the terminal equipment, so that the terminal equipment can fully utilize uplink transmission resources under the condition that the terminal equipment meets the requirement of meeting the positioning precision of the terminal equipment. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a positioning method according to an embodiment of the present invention;
fig. 2 is a flowchart of another positioning method according to a second embodiment of the present invention;
fig. 3 is an interaction flowchart of a device in a positioning method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network-side device according to a fourth embodiment of the present invention;
fig. 4a is a schematic structural diagram of another network-side device according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network-side device according to a fifth embodiment of the present invention;
fig. 5a is a schematic structural diagram of another network-side device according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal device according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal device according to a seventh embodiment 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.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship. In addition, the term "plurality" herein means two or more.
Example one
An embodiment of the present invention provides a positioning method, as shown in fig. 1, including:
101. and the network side equipment determines the positioning precision of the terminal equipment and the resource information required by meeting the positioning precision.
The positioning method provided by the embodiment of the invention can be applied to a wireless network system. For example, the method can be applied to a system such as LTE (Long Term Evolution); specifically, the method can be applied to a process of positioning the terminal device in the LTE system. The network side device may be a Base station, and specifically may be a BBU (baseband processing Unit) in the Base station.
When step 101 is implemented specifically, the positioning accuracy of the terminal device may be determined in, but is not limited to, the following two ways:
in the first mode, the network side equipment receives the positioning precision of the terminal equipment sent by the terminal equipment.
And secondly, the network side equipment receives the service identifier which is sent by the terminal equipment and has a positioning requirement in the terminal equipment, determines the positioning precision required by the service according to the service identifier, and takes the positioning precision required by the service as the positioning precision of the terminal equipment.
When the second method is implemented specifically, the network side device may determine the positioning accuracy required by the service according to the identifier of the service with the positioning requirement in the terminal device or the service type corresponding to the identifier of the service with the positioning requirement; and the positioning accuracy is taken as the positioning accuracy of the terminal equipment. The services with different identifications may correspond to the same service type or different service types.
In a specific implementation, in the process of determining the resource information required by the positioning accuracy, the network side device may determine the resource information required by the positioning accuracy in real time or according to a mapping relationship between the positioning accuracy and the resource information stored in the network side device in advance after determining the positioning accuracy of the terminal device.
The level of the "positioning accuracy" can be characterized by information such as the level of the positioning accuracy. The higher the level of the positioning accuracy, the higher the positioning accuracy. For example, the network side device may divide the positioning accuracy into S (S is a positive integer) levels, each of which is L1、L2、…、Li、…、Lj、…、LS(ii) a Can specify a positioning accuracy level LiHigher than the positioning accuracy level LjWherein i is less than j, and i and j are positive integers.
The "resource information" is information indicating a resource used when the terminal device transmits the positioning signal. Optionally, "resource information" includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal. When the positioning accuracy of the terminal device determined by the network side device is relatively high, the network side device determines more resource information for the positioning accuracy, for example, the resource information may be: a shorter transmission period, a wider transmission bandwidth, or higher transmission power, etc.; when the positioning accuracy of the terminal device determined by the network side device is relatively low, less resource information is determined for the positioning accuracy, for example, the resource information may be a longer transmission period, a narrower transmission bandwidth, or a lower transmission power.
102. The network side equipment sends an indication message to the terminal equipment; the indication message includes the resource information and the content of the positioning signal, and is used for enabling the terminal device to transmit the positioning signal according to the resource information and the content of the positioning signal.
The content of the positioning signal may be a positioning sequence, etc. In a specific implementation, the indication message may further include other information.
In step 102, when the terminal device is specifically implemented, the terminal device may send the positioning signal in a unicast manner, a multicast manner, or a broadcast manner, and specifically, may send the positioning signal periodically in a unicast manner, a multicast manner, or a broadcast manner.
103. The network side equipment estimates the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
The receiving point may be an antenna, and specifically may be different antennas on the same network side device or antennas on different network side devices. The network side device may negotiate in advance to determine a reception point that participates in estimating the location of the terminal device. In a specific implementation, if the receiving point receiving the positioning signal is a receiving point not participating in the positioning of the terminal device, the receiving point may discard the positioning signal.
Before step 103, the method may further include the network side device obtaining distances/distance differences of the positioning signal to multiple receiving points. Specifically, the method comprises the following steps: the network side equipment detects positioning signals received by a plurality of receiving points; the distance/distance difference between the terminal device and different receiving points is directly obtained, or the time/time difference between the terminal device and different receiving points is estimated by using a preset algorithm according to the positioning signals and the indication messages received by the plurality of receiving points, so that the distance/distance difference between the terminal device and different receiving points is estimated. The preset algorithm may be a correlation algorithm, etc.
Further, in order to improve the positioning accuracy, the network side device may determine a specific preset time domain resource location and/or frequency domain resource location for the positioning signal, and may also determine different time domain resource locations and/or frequency domain resource locations for the positioning signal and the uplink data signal of the terminal device. Optionally, the network side device may determine different time domain resource locations and/or frequency domain resource locations for positioning signals of different terminal devices; the same time domain resource location and/or frequency domain resource location may also be determined for the positioning signals of different terminal devices, and different code division sequences are allocated to the positioning signals, where the code division sequences are used to distinguish the positioning signals of different terminal devices.
Specifically, the "positioning algorithm" in step 103 may be a TOA positioning algorithm, a TDOA positioning algorithm, or the like. The method of positioning by TOA and TDOA positioning algorithms can be found in the prior art and will not be described in detail herein.
Optionally, after step 103, the method may further include: and the network side equipment sends the position of the terminal equipment estimated by the network side equipment to the terminal equipment so that the terminal equipment stops sending the positioning signal.
According to the positioning method provided by the embodiment of the invention, the terminal equipment sends the positioning signal according to the resource information which is determined by the network side equipment and is required by the network side equipment to meet the positioning precision of the terminal equipment, so that the terminal equipment can fully utilize uplink transmission resources under the condition that the terminal equipment meets the requirement of the positioning precision of the terminal equipment. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
Example two
An embodiment of the present invention provides a positioning method, as shown in fig. 2, including:
201. the terminal equipment receives an indication message sent by the network side equipment; the indication message contains resource information meeting the positioning precision of the terminal equipment and the content of the positioning signal.
It should be noted that, for the explanation in this embodiment, reference may be made to embodiment one.
Specifically, the terminal device may execute step 201 under a trigger condition of a requirement of physical layer signal processing or a requirement of application layer service; for example, when the terminal device initiates a service with a positioning requirement under the requirement of an application layer service, step 201 is executed.
Optionally, before step 201, the method may further include: sending the positioning precision containing the terminal equipment to network side equipment so that the network side equipment determines resource information meeting the positioning precision of the terminal equipment; or sending an identifier of a service with a positioning requirement in the terminal device to a network side device, so that the network side device determines resource information meeting the positioning accuracy of the terminal device according to the identifier of the service.
When the optional method is specifically implemented, the terminal device may directly determine the positioning accuracy required by the service according to the identifier of the service with the positioning requirement or the service type corresponding to the identifier of the service with the positioning requirement; and sending the positioning accuracy to the network side equipment as the positioning accuracy of the terminal equipment; or directly sending the identifier of the service with the positioning requirement to the network side equipment.
202. The terminal equipment sends the positioning signal according to the resource information and the content of the positioning signal; enabling the network side equipment to estimate the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
Alternatively, the "positioning signal" may be: an uplink sounding signal or an uplink pilot signal.
Optionally, "resource information" includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
In step 202, specifically, the terminal device may send the positioning signal in a unicast manner, a multicast manner, or a broadcast manner, and specifically, may send the positioning signal in a unicast manner, a multicast manner, or a broadcast manner periodically.
The receiving point may be an antenna, and specifically may be different antennas on the same network side device or antennas on different network side devices. The network side device may negotiate in advance to determine a reception point that participates in estimating the location of the terminal device. In a specific implementation, if the receiving point receiving the positioning signal is a receiving point not participating in the positioning of the terminal device, the receiving point may discard the positioning signal.
According to the positioning method provided by the embodiment of the invention, the terminal equipment sends the positioning signal according to the resource information which is determined by the network side equipment and is required by the network side equipment to meet the positioning precision of the terminal equipment, so that the terminal equipment can fully utilize uplink transmission resources under the condition that the terminal equipment meets the requirement of the positioning precision of the terminal equipment. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
EXAMPLE III
The present embodiment systematically describes the positioning method provided in the embodiments of the present invention through an interaction process between a network side device and a terminal device. The positioning accuracy in this embodiment is characterized by a positioning accuracy level, and the resource information in this embodiment includes a transmission period of the positioning signal, a transmission bandwidth of the positioning signal, a transmission power of the positioning signal, a time domain resource location of the positioning signal, and a frequency domain resource location of the positioning signal. In addition, in this embodiment, the positioning method is described by taking a plurality of receiving points as receiving points on different network side devices as an example. As shown in fig. 3, the positioning method may specifically include the following steps:
301. when the terminal equipment initiates a service with a positioning requirement, the terminal equipment determines a positioning precision grade required by the service according to the service identifier, and the positioning precision grade is used as the positioning precision grade of the terminal equipment.
For example, when the terminal device initiates a service 1 that needs positioning, the terminal device may determine, according to the identifier of the service 1, that the positioning accuracy needed by the service is a positioning accuracy level L3And will position the accuracy grade L3As the positioning accuracy grade of the terminal device.
302. And the terminal equipment sends a positioning request message to the network side equipment, wherein the positioning request message contains the positioning precision grade of the terminal equipment.
Based on the example in step 301, the positioning accuracy level L of the terminal device is included in the positioning request message sent by the terminal device to the network side device3。
303. And the network side equipment determines the positioning precision grade of the terminal equipment and the resource information required by meeting the positioning precision grade according to the positioning request message.
The network side device can determine the resource information required by meeting the positioning accuracy grade according to the mapping relation between the pre-stored positioning accuracy grade and the resource information.
For example, the mapping relationship between the positioning accuracy level and the resource information stored in advance in the network side device may be: positioning accuracy grade of L1、L2、L3…LSThe corresponding resource information is { T }1、B1、P1、S1、F1}、{T2、B2、P2、S2、F2}、{T3、B3、P3、S3、F3}、…、{Ts、Bs、Ps、Ss、Fs}; wherein, T represents the transmission period of the positioning signal, B represents the transmission bandwidth of the positioning signal, P represents the transmission power of the positioning signal, S represents the time domain resource location of the positioning signal, and F represents the frequency domain resource location of the positioning signal. Based on the steps302, the network device may determine the positioning accuracy level L according to the mapping relationship between the positioning accuracy level and the resource information3The required resource information is { T }3、B3、P3、S3、F3}。
304. And the network side equipment sends an indication message to the terminal equipment, wherein the indication message comprises resource information and a positioning sequence.
305. The terminal equipment periodically broadcasts a positioning signal to a plurality of receiving points according to the resource information; the positioning signal includes a positioning sequence.
Based on the example in step 303, specifically, the terminal device is at the time domain resource location S3And frequency domain resource location F3Transmission bandwidth B with transmission period T33And a transmission power P3A positioning signal is broadcast to a plurality of receiving points.
306. The network side equipment detects the positioning signals received by the plurality of receiving points.
307. And the network side equipment estimates the distance difference from the terminal equipment to different receiving points through correlation operation according to the positioning signals and the indication messages received by the plurality of receiving points.
Step 307 may be implemented specifically as follows: and the network side equipment performs correlation operation on the positioning sequence contained in the indication message and the positioning sequence contained in the positioning signals received by the plurality of receiving points, estimates the time difference from the terminal equipment to different receiving points and further estimates the distance difference from the terminal equipment to different receiving points.
308. And the network side equipment estimates the position of the terminal equipment according to the distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm.
Specifically, the network side device may estimate the location of the terminal device according to the TDOA positioning algorithm, and a method for implementing positioning using the TDOA positioning algorithm may be referred to in the prior art, and will not be described herein too much.
309. And the network side equipment sends the position of the terminal equipment estimated by the network side equipment to the terminal equipment.
310. The terminal equipment stops sending the positioning signal.
According to the positioning method provided by the embodiment of the invention, the terminal equipment sends the positioning signal according to the resource information which is determined by the network side equipment and is required by the network side equipment to meet the positioning precision of the terminal equipment, so that the terminal equipment can fully utilize uplink transmission resources under the condition that the terminal equipment meets the requirement of the positioning precision of the terminal equipment. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
Example four
An embodiment of the present invention provides a network-side device 40, configured to execute the positioning method shown in fig. 1, where as shown in fig. 4, the network-side device 40 includes:
a determining unit 401, configured to determine the positioning accuracy of the terminal device and resource information required to meet the positioning accuracy.
A sending unit 402, configured to send an instruction message to the terminal device; the indication message includes the resource information and the content of the positioning signal, and is used for enabling the terminal device to transmit the positioning signal according to the resource information and the content of the positioning signal.
A positioning unit 403, configured to estimate a position of the terminal device according to distances/distance differences from the positioning signal to multiple receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
Optionally, as shown in fig. 4a, the network-side device 40 may further include: a receiving unit 404, configured to receive positioning accuracy of a terminal device sent by the terminal device; alternatively, the network-side device 40 may further include: a receiving unit 404, configured to receive an identifier of a service with a location requirement in a terminal device, where the identifier is sent by the terminal device; the determining unit 401 is further configured to determine, according to the identifier of the service, a positioning accuracy required by the service, and use the positioning accuracy required by the service as the positioning accuracy of the terminal device.
Optionally, the resource information includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
According to the network side equipment provided by the embodiment of the invention, the terminal equipment sends the positioning signal according to the resource information which is determined by the network side equipment and is required by the network side equipment to meet the positioning precision of the terminal equipment, so that the terminal equipment can fully utilize uplink transmission resources under the condition that the terminal equipment meets the requirement of the positioning precision of the terminal equipment. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
EXAMPLE five
In terms of hardware implementation, the transmitting unit in the fourth embodiment may be a transmitter, the receiving unit may be a receiver, and the transmitter and the receiver may be integrated together to form a transceiver; the determining unit and the positioning unit may be embedded in a hardware form or a processor independent of the network side device, or may be stored in a memory of the network side device in a software form, so that the processor may invoke and execute operations corresponding to the above units, and the processor may be a Central Processing Unit (CPU), a microprocessor, a single chip, or the like.
As shown in fig. 5, a network-side device 50 provided in an embodiment of the present invention is configured to execute the positioning method shown in fig. 1, where the network-side device 50 includes: memory 501, transmitter 502, processor 503, and bus system 504.
The memory 501, the transmitter 502 and the processor 503 are coupled together by a bus system 504, wherein the bus system 504 may include a power bus, a control bus, a status signal bus, etc. in addition to a data bus. For clarity of illustration, however, the various buses are designated in the figure as the bus system 504.
A memory 501 for storing a set of codes.
The code stored in the memory 501 is used to control the processor 503 to perform the following actions: and determining the positioning precision of the terminal equipment and the resource information required by meeting the positioning precision.
The transmitter 502 is configured to transmit an indication message to the terminal device; the indication message includes the resource information and the content of the positioning signal, and is used for enabling the terminal device to transmit the positioning signal according to the resource information and the content of the positioning signal.
The processor 503 is further configured to estimate the location of the terminal device according to the distance/distance difference of the positioning signal to multiple receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
Optionally, as shown in fig. 5a, the network-side device 50 may further include:
a receiver 505, configured to receive positioning accuracy of a terminal device sent by the terminal device; alternatively, the network-side device 40 further includes: a receiver 505, configured to receive an identifier of a service with a location requirement in a terminal device, where the identifier is sent by the terminal device; the processor 503 is further configured to determine, according to the identifier of the service, a positioning accuracy required by the service, and use the positioning accuracy required by the service as the positioning accuracy of the terminal device.
Optionally, the resource information includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
According to the network side equipment provided by the embodiment of the invention, the terminal equipment sends the positioning signal according to the resource information which is determined by the network side equipment and is required by the network side equipment to meet the positioning precision of the terminal equipment, so that the terminal equipment can fully utilize uplink transmission resources under the condition that the terminal equipment meets the requirement of the positioning precision of the terminal equipment. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
EXAMPLE six
An embodiment of the present invention provides a terminal device 60, configured to execute the positioning method shown in fig. 2, where as shown in fig. 6, the terminal device 60 includes:
a receiving unit 601, configured to receive an indication message sent by a network side device; the indication message contains resource information meeting the positioning precision of the terminal equipment and the content of the positioning signal.
A sending unit 602, configured to send the positioning signal according to the resource information and the content of the positioning signal; enabling the network side equipment to estimate the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
Optionally, the positioning signal includes: an uplink sounding signal or an uplink pilot signal.
Optionally, the sending unit 602 is further configured to: sending the positioning precision containing the terminal equipment to network side equipment so that the network side equipment determines resource information meeting the positioning precision of the terminal equipment;
alternatively, the sending unit 602 is further configured to: and sending the identifier of the service with the positioning requirement in the terminal equipment to network side equipment, so that the network side equipment determines the resource information meeting the positioning precision of the terminal equipment according to the identifier of the service.
Optionally, the resource information includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
According to the terminal device provided by the embodiment of the invention, the terminal device sends the positioning signal according to the resource information which is determined by the network side device and is required by the network side device to meet the positioning precision of the terminal device, so that the terminal device can fully utilize uplink transmission resources under the condition that the terminal device meets the requirement of the positioning precision of the terminal device. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
EXAMPLE seven
In terms of hardware implementation, the transmitting unit in the sixth embodiment may be a transmitter, the receiving unit may be a receiver, and the transmitter and the receiver may be integrated together to form a transceiver; the determining unit may be embedded in a hardware form or a processor independent from the client device, or may be stored in a memory of the client device in a software form, so that the processor may invoke and execute operations corresponding to the above units, and the processor may be a Central Processing Unit (CPU), a microprocessor, a single chip microcomputer, or the like.
As shown in fig. 7, a terminal device 70 provided in an embodiment of the present invention is configured to execute the positioning method shown in fig. 2, where the terminal device 70 includes: a receiver 701, a transmitter 702 and a bus system 703.
The receiver 701 and the transmitter 702 are coupled together by a bus system 703, wherein the bus system 703 may include a power bus, a control bus, a status signal bus, and the like in addition to a data bus. For clarity of illustration, however, the various buses are labeled in the figure as bus system 703.
A receiver 701, configured to receive an indication message sent by a network side device; wherein the indication message contains resource information and the content of the positioning signal.
A transmitter 702, configured to transmit the positioning signal according to the resource information and the content of the positioning signal; enabling the network side equipment to estimate the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
Optionally, the positioning signal includes: an uplink sounding signal or an uplink pilot signal.
Optionally, the transmitter 702 is further configured to transmit the positioning accuracy including the terminal device to a network side device, so that the network side device determines resource information meeting the positioning accuracy of the terminal device;
or, the transmitter 702 is further configured to transmit an identifier of a service, which has a positioning requirement, in the terminal device to a network side device, so that the network side device determines, according to the identifier of the service, resource information that meets the positioning accuracy of the terminal device.
Optionally, the resource information includes at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
According to the terminal device provided by the embodiment of the invention, the terminal device sends the positioning signal according to the resource information which is determined by the network side device and is required by the network side device to meet the positioning precision of the terminal device, so that the terminal device can fully utilize uplink transmission resources under the condition that the terminal device meets the requirement of the positioning precision of the terminal device. The resource waste caused by still using more 'specific resource information' when the requirement on the positioning accuracy of the terminal equipment is lower is avoided, and the utilization rate of uplink transmission resources can be effectively improved.
Example eight
The embodiment of the invention provides a positioning system, which comprises network side equipment and/or terminal equipment; the network-side device may be any one of the network-side devices 40 provided in the fourth embodiment or any one of the network-side devices 50 provided in the fifth embodiment; the terminal device may be any one of the terminal devices 60 provided in the sixth embodiment or any one of the terminal devices 70 provided in the seventh embodiment.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
1. A method of positioning, comprising:
the network side equipment determines the positioning precision of the terminal equipment and resource information required by meeting the positioning precision;
sending an indication message to the terminal equipment; the indication message contains the resource information and the content of the positioning signal, and is used for enabling the terminal equipment to send the positioning signal according to the resource information and the content of the positioning signal;
estimating the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
2. The method according to claim 1, wherein the determining, by the network-side device, the positioning accuracy of the terminal device includes:
the method comprises the steps that network side equipment receives positioning accuracy of terminal equipment sent by the terminal equipment; or,
the method comprises the steps that network side equipment receives an identifier of a service with a positioning requirement in the terminal equipment, which is sent by the terminal equipment, determines the positioning precision required by the service according to the identifier of the service, and takes the positioning precision required by the service as the positioning precision of the terminal equipment.
3. The positioning method according to claim 1 or 2, wherein the resource information comprises at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
4. A method of positioning, comprising:
the terminal equipment receives an indication message sent by the network side equipment; the indication message contains resource information meeting the positioning precision of the terminal equipment and the content of a positioning signal;
transmitting the positioning signal according to the resource information and the content of the positioning signal; enabling the network side equipment to estimate the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
5. The method according to claim 4, wherein the positioning signal comprises: an uplink sounding signal or an uplink pilot signal.
6. The positioning method according to claim 4, wherein before the terminal device receives the indication message sent by the network-side device, the method further comprises:
sending the positioning precision containing the terminal equipment to network side equipment so that the network side equipment determines resource information meeting the positioning precision of the terminal equipment;
or sending an identifier of a service with a positioning requirement in the terminal device to a network side device, so that the network side device determines resource information meeting the positioning accuracy of the terminal device according to the identifier of the service.
7. The positioning method according to any of claims 4-6, wherein the resource information comprises at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
8. A network-side device, comprising:
the device comprises a determining unit, a processing unit and a processing unit, wherein the determining unit is used for determining the positioning precision of the terminal equipment and the resource information required by meeting the positioning precision;
a sending unit, configured to send an indication message to the terminal device; the indication message contains the resource information and the content of the positioning signal, and is used for enabling the terminal equipment to send the positioning signal according to the resource information and the content of the positioning signal;
the positioning unit is used for estimating the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
9. The network-side device of claim 8,
the network side device further includes: the receiving unit is used for receiving the positioning precision of the terminal equipment sent by the terminal equipment;
or, the network side device further includes: the receiving unit is used for receiving the service identification which is sent by the terminal equipment and has the positioning requirement in the terminal equipment; the determining unit is further configured to determine, according to the identifier of the service, a positioning accuracy required by the service, and use the positioning accuracy required by the service as the positioning accuracy of the terminal device.
10. The network-side device of claim 8 or 9, wherein the resource information comprises at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
11. A terminal device, comprising:
the receiving unit is used for receiving an indication message sent by the network side equipment; the indication message contains resource information meeting the positioning precision of the terminal equipment and the content of a positioning signal;
a sending unit, configured to send the positioning signal according to the resource information and the content of the positioning signal; enabling the network side equipment to estimate the position of the terminal equipment according to the distance/distance difference of the positioning signal to a plurality of receiving points and a positioning algorithm; wherein the plurality of receiving points are receiving points participating in estimating the location of the terminal device.
12. The terminal device of claim 11, wherein the positioning signal comprises: an uplink sounding signal or an uplink pilot signal.
13. The terminal device of claim 11,
the sending unit is further configured to send, to a network side device, the positioning accuracy including the terminal device, so that the network side device determines resource information that meets the positioning accuracy of the terminal device;
or, the sending unit is further configured to send an identifier of a service that requires positioning in the terminal device to a network side device, so that the network side device determines, according to the identifier of the service, resource information that meets the positioning accuracy of the terminal device.
14. The terminal device according to any of claims 11-13, wherein the resource information comprises at least one of the following information: the sending period of the positioning signal, the sending bandwidth of the positioning signal, the sending power of the positioning signal, the time domain resource position of the positioning signal, and the frequency domain resource position of the positioning signal.
15. A positioning system, comprising: the network side device according to any of claims 8-10, and/or the terminal device according to any of claims 11-14.
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| CN201410696745.6A CN104394590A (en) | 2014-11-26 | 2014-11-26 | Positioning method, device and system |
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