CN111148014B - Configuration method and device of reference signal for positioning, network side equipment and mobile terminal - Google Patents

Configuration method and device of reference signal for positioning, network side equipment and mobile terminal Download PDF

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Publication number
CN111148014B
CN111148014B CN201811302716.1A CN201811302716A CN111148014B CN 111148014 B CN111148014 B CN 111148014B CN 201811302716 A CN201811302716 A CN 201811302716A CN 111148014 B CN111148014 B CN 111148014B
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csi
resource
mapping
resources
mobile terminal
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CN111148014A (en
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蔡红亮
王钰华
马大为
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Spreadtrum Semiconductor Nanjing Co Ltd
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Spreadtrum Semiconductor Nanjing Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The invention provides a method and a device for configuring a reference signal for positioning, network side equipment and a mobile terminal. At a network side device, the method comprises: configuring a CSI-RS set for a mobile terminal, wherein the CSI-RS set comprises a plurality of CSI-RS resources; and configuring the mapping position of the first CSI-RS resource for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources. The invention can configure the effective reference signal for NR positioning for the mobile terminal, thereby improving the positioning precision of the mobile terminal.

Description

Configuration method and device of reference signal for positioning, network side equipment and mobile terminal
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for configuring a reference signal for positioning, a network side device, and a mobile terminal.
Background
In the SI of Rel-16, it is explicitly proposed to solve the NR (New Radio, New air interface) positioning problem in different usage scenarios, where the current positioning technologies mainly fall into two categories: RAT dependent and RAT independent, where RAT dependent positioning technology is the NR positioning that must be used.
The RAT-dependent positioning technology mainly comprises the following positioning methods: enhanced Cell ID, Downlink positioning, and Uplink positioning. The downlink positioning technique mainly adopts an Observed Time Difference of Arrival (OTDOA) positioning method, and in the #94b conference, each company explicitly proposes to use the OTDOA positioning technique for downlink positioning. As for NR Positioning, whether to use any Reference Signal or to design a new PRS (Positioning Reference Signal) is not determined at present.
The OTDOA positioning technique is shown in fig. 1, and calculates the Time of Arrival (TOA) of three base stations at a mobile terminal by measuring, which is recorded as τ1,τ2,τ3Selecting the base station 1 as a reference base station, and respectively calculating the time difference of other base stations relative to the base station 1 to reach the mobile terminal as follows: t is t2，1＝τ2-τ1，t3，1＝τ3-τ1. Because each measured TOA has a specified accuracy and error, as shown in fig. 1, an interval of a certain width is obtained, which is generally referred to as measurement inaccuracy. And finally, jointly measuring the TOAs of the three base stations to obtain a gray interval, which is the area where the mobile terminal finally exists.
The mobile terminal measures the arrival time of the base station through a downlink reference signal sent by the base station side, and analyzes the arrival time of the downlink reference signal through correlation peak detection. In LTE positioning, where a base station sends PRSs to provide measurements to a UE, the pattern of PRSs will be briefly introduced as follows:
as shown in fig. 2, the LTE-PRS uses port 6 for transmission, and is a regular signal using a diagonal design method.
Firstly, the LTE-PRS is mapped in a frequency domain by using the same frequency domain interval, and 2 REs (Resource elements) are placed in each RB (Resource Block) at equal intervals, and the purpose of the equal placement of the frequency domain is to obtain a better autocorrelation peak characteristic to improve the detection accuracy of the correlation peak of the mobile terminal. Meanwhile, according to the time domain symbol position, the PRS has a frequency domain offset in the frequency domain, so as to prevent the interference of the reference signal between adjacent cells.
Meanwhile, the LTE-PRS also configures a transmission period and an offset, the base station may transmit one LTE-PRS every 160, 320, 640 or 1280 subframes, and may continuously transmit 1, 2, 4, 8 subframes in one period, as shown in fig. 3.
Currently, many companies have proposed their own ideas for NR positioning reference signal design, and no matter which reference signal is used, they can not meet the current positioning requirements if only the Rel-15 signal pattern is kept unchanged as the NR positioning reference signal.
Disclosure of Invention
The configuration method and device for the reference signal for positioning, the network side equipment and the mobile terminal provided by the invention can configure the effective reference signal for NR positioning for the mobile terminal, thereby improving the positioning accuracy of the mobile terminal.
In a first aspect, the present invention provides a method for configuring a reference signal for positioning, where the method is applied to a network side device, and the method includes:
configuring a CSI-RS set for a mobile terminal, wherein the CSI-RS set comprises a plurality of CSI-RS resources;
and configuring the mapping position of the first CSI-RS resource for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
Optionally, the configuring the mapping position of the first CSI-RS resource for the mobile terminal includes: and configuring the mapping position of the first CSI-RS resource for the mobile terminal through time domain position configuration and frequency domain offset configuration.
Optionally, the configuring, by the mobile terminal, a mapping position of a first CSI-RS resource, so that the determining, by the mobile terminal, the mapping position of each other CSI-RS resource according to the mapping position of the first CSI-RS resource and a time domain symbol position where each other CSI-RS resource is located includes:
and for a plurality of continuous time slots, respectively configuring the mapping position of the first CSI-RS resource in each time slot for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
Optionally, the configuring, by the mobile terminal, a mapping position of a first CSI-RS resource, so that the determining, by the mobile terminal, the mapping position of each other CSI-RS resource according to the mapping position of the first CSI-RS resource and a time domain symbol position where each other CSI-RS resource is located includes:
and for a plurality of continuous time slots, configuring the mapping position of the first CSI-RS resource in the first time slot for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources in the first time slot according to the mapping position of the first CSI-RS resource in the first time slot and the time domain symbol positions of other CSI-RS resources in the first time slot, determines the mapping position of the first CSI-RS resource in the current time slot according to the mapping position of the last CSI-RS resource in the previous time slot in other time slots, and determines the mapping positions of other CSI-RS resources in the current time slot according to the mapping position of the first CSI-RS resource in the current time slot and the time domain symbol positions of other CSI-RS resources in the current time slot.
In a second aspect, the present invention provides another method for configuring a reference signal for positioning, where the method is applied to a mobile terminal, and the method includes:
receiving a CSI-RS set configured by network side equipment, wherein the CSI-RS set comprises a plurality of CSI-RS resources;
receiving a mapping position of a first CSI-RS resource configured by the network side equipment;
and determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
Optionally, the receiving the mapping position of the first CSI-RS resource configured by the network side device includes: and receiving the mapping position of the first CSI-RS resource configured for the mobile terminal by the network side equipment through time domain position configuration and frequency domain offset configuration.
Optionally, determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where other CSI-RS resources are located includes: and determining the mapping positions of the second CSI-RS resource and other CSI-RS resources later according to the mapping position of the last CSI-RS resource and the offset of the time domain symbol position of the CSI-RS resource relative to the time domain symbol position of the last CSI-RS resource.
Optionally, for a plurality of consecutive timeslots, the receiving a mapping position of a first CSI-RS resource configured by the network side device includes: receiving the mapping position of a first CSI-RS resource in each time slot configured by the network side equipment;
determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where the other CSI-RS resources are located comprises: and determining the mapping positions of other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
Optionally, for a plurality of consecutive timeslots, the determining the mapping positions of each other CSI-RS resource according to the mapping position of the first CSI-RS resource and the time domain symbol positions where each other CSI-RS resource is located includes: and determining the mapping positions of other CSI-RS resources in the first time slot according to the mapping position of the first CSI-RS resource in the first time slot and the time domain symbol positions of other CSI-RS resources in the first time slot, determining the mapping position of the first CSI-RS resource in the time slot according to the mapping position of the last CSI-RS resource in the last time slot in other time slots, and determining the mapping positions of other CSI-RS resources in the time slot according to the mapping position of the first CSI-RS resource in the time slot and the time domain symbol positions of other CSI-RS resources in the time slot.
In a third aspect, the present invention provides an apparatus for configuring a reference signal for positioning, where the apparatus is located in a network side device, and the apparatus includes:
the mobile terminal comprises a first configuration unit and a second configuration unit, wherein the first configuration unit is used for configuring a CSI-RS set for the mobile terminal, and the CSI-RS set comprises a plurality of CSI-RS resources;
and the second configuration unit is used for configuring the mapping position of the first CSI-RS resource for the mobile terminal so that the mobile terminal can determine the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
Optionally, the second configuration unit is configured to configure, by means of time domain location configuration and frequency domain offset configuration, a mapping location of a first CSI-RS resource for the mobile terminal.
Optionally, the second configuration unit is configured to configure, for multiple consecutive timeslots, a mapping position of a first CSI-RS resource in each timeslot for the mobile terminal, so that the mobile terminal determines, in each timeslot, a mapping position of each other CSI-RS resource according to the mapping position of the first CSI-RS resource and a time-domain symbol position where each other CSI-RS resource is located.
Optionally, the second configuration unit is configured to configure, for a plurality of consecutive timeslots, a mapping position of a first CSI-RS resource in a first timeslot for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources in the first time slot according to the mapping position of the first CSI-RS resource in the first time slot and the time domain symbol positions of other CSI-RS resources in the first time slot, and in other time slots, determining the mapping position of the first CSI-RS resource in the time slot according to the mapping position of the last CSI-RS resource in the last time slot, and determining the mapping positions of other CSI-RS resources in the time slot according to the mapping position of the first CSI-RS resource in the time slot and the time domain symbol positions of other CSI-RS resources in the time slot.
In a fourth aspect, the present invention provides another apparatus for configuring a reference signal for positioning, where the apparatus is located in a mobile terminal, and the apparatus includes:
the device comprises a first receiving unit, a second receiving unit and a third receiving unit, wherein the first receiving unit is used for receiving a CSI-RS set configured by network side equipment, and the CSI-RS set comprises a plurality of CSI-RS resources;
a second receiving unit, configured to receive a mapping position of a first CSI-RS resource configured by the network side device;
and the determining unit is used for determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where other CSI-RS resources are located.
Optionally, the second receiving unit is configured to receive that the network side device configures, through time domain location configuration and frequency domain offset configuration, a mapping location of a first CSI-RS resource for the mobile terminal.
Optionally, the determining unit is configured to determine the mapping positions of the second CSI-RS resource and the other CSI-RS resources later according to the mapping position of the last CSI-RS resource and the offset of the time domain symbol position where the CSI-RS resource is located with respect to the time domain symbol position where the last CSI-RS resource is located.
Optionally, for a plurality of consecutive timeslots, the second receiving unit is configured to receive a mapping position of a first CSI-RS resource in each timeslot configured by the network side device;
and the determining unit is used for determining the mapping positions of other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
Optionally, for a plurality of consecutive time slots, the determining unit is configured to determine, according to the mapping position of the first CSI-RS resource in the first time slot and the time-domain symbol positions of the other CSI-RS resources in the first time slot, the mapping positions of the other CSI-RS resources in the first time slot, and in the other time slots, determine, according to the mapping position of the last CSI-RS resource in the previous time slot, the mapping position of the first CSI-RS resource in the current time slot, and determine, according to the mapping position of the first CSI-RS resource in the current time slot and the time-domain symbol positions of the other CSI-RS resources in the current time slot, the mapping positions of the other CSI-RS resources in the current time slot.
In a fifth aspect, the present invention provides a network side device, where the network side device includes the above configuration apparatus for positioning reference signals located in the network side device.
In a sixth aspect, the present invention provides a mobile terminal, where the mobile terminal includes the above apparatus for configuring reference signals for positioning located in the mobile terminal.
According to the configuration method and device for the reference signal for positioning, the network side equipment and the mobile terminal provided by the embodiment of the invention, the network side equipment configures a CSI-RS set for the mobile terminal, the CSI-RS set comprises a plurality of CSI-RS resources, the mobile terminal is configured with the mapping position of a first CSI-RS resource, and the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources, so that the network side equipment can configure the effective reference signal for NR positioning for the mobile terminal, and further the positioning accuracy of the mobile terminal can be improved.
Drawings
FIG. 1 is a schematic diagram of a prior art OTDOA positioning technique;
FIG. 2 is a diagram of a positioning reference signal pattern in the prior art;
FIG. 3 is a diagram illustrating a prior art base station transmitting LTE-PRS;
FIG. 4 is a flowchart illustrating a method for configuring a reference signal for positioning according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for configuring a reference signal for positioning according to another embodiment of the present invention;
fig. 6 is a schematic diagram of mapping positions of CSI-RS resources according to an embodiment of the present invention;
fig. 7 is a diagram illustrating a CSI-RS resource set according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a mapping position of a first CSI-RS resource configured by a base station according to an embodiment of the present invention;
fig. 9 and fig. 10 are schematic diagrams of a mapping position of a second CSI-RS resource determined by a mobile terminal according to an embodiment of the present invention;
fig. 11 is a schematic diagram of mapping positions of all CSI-RS resources determined by a mobile terminal according to an embodiment of the present invention;
fig. 12 and fig. 13 are schematic diagrams of mapping positions of all CSI-RS resources in a plurality of consecutive timeslots determined by a mobile terminal according to an embodiment of the present invention;
FIG. 14 is a schematic structural diagram of an apparatus for configuring a reference signal for positioning according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a device for configuring reference signals for positioning according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.
An embodiment of the present invention provides a method for configuring a reference signal for positioning, where the method is applied to a network side device, and as shown in fig. 4, the method includes:
s41, configuring a CSI-RS (Channel State Information Reference Signal) set for the mobile terminal, wherein the CSI-RS set comprises a plurality of CSI-RS resources.
S42, configuring the mapping position of the first CSI-RS resource for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
According to the configuration method of the reference signal for positioning provided by the embodiment of the invention, the network side equipment configures the CSI-RS set for the mobile terminal, the CSI-RS set comprises a plurality of CSI-RS resources, and configures the mapping position of the first CSI-RS resource for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where other CSI-RS resources are located, and thus the network side equipment can configure the effective reference signal for NR positioning for the mobile terminal, and further improve the positioning accuracy of the mobile terminal.
An embodiment of the present invention provides another method for configuring a reference signal for positioning, where the method is applied to a mobile terminal, and as shown in fig. 5, the method includes:
s51, receiving a CSI-RS set configured by a network side device, wherein the CSI-RS set comprises a plurality of CSI-RS resources.
S52, receiving the mapping position of the first CSI-RS resource configured by the network side equipment.
And S53, determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
According to the configuration method of the reference signal for positioning provided by the embodiment of the invention, the mobile terminal receives the CSI-RS set configured by the network side equipment, the CSI-RS set comprises a plurality of CSI-RS resources, receives the mapping position of the first CSI-RS resource configured by the network side equipment, and determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources, so that an effective reference signal for NR positioning can be obtained, and the positioning precision of the mobile terminal can be improved.
The following describes in detail a method for configuring a reference signal for positioning according to an embodiment of the present invention.
The CSI-RS resource with the single port density of 3 is configured by the base station through a high-level signaling:
as shown in fig. 6, when the number of configured ports in the resource mapping is 1 and the Frequency domain density is 3, the target reference signal is a target reference signal that needs to be configured in the present invention, such CSI-RS resource occupies one OFDM (Orthogonal Frequency Division Multiplexing) symbol in the time domain, and the higher layer signaling can configure on which symbol the CSI-RS specifically occupies the time slot.
A base station configures a CSI-RS resource set for a mobile terminal through a high-level signaling, as shown in fig. 7, M single-port CSI-RS resources with a density of 3 are configured in the set, and all CSI-RS resources in the set have the same period, but time domain offsets may be different.
A first CSI-RS resource mapping position is obtained in the CSI-RS resource through time domain position configuration and frequency domain offset configuration, and assuming that the CSI-RS resource is configured with a first OFDM symbol in a time slot, a frequency domain bit indicator is 1000, as shown in fig. 8.
For the second CSI-RS, the frequency domain configuration does not need 4 bits for indication, but only needs to perform a cyclic shift operation according to the OFDM symbol position of the second CSI-RS resource, specifically, several subcarriers are offset, and the following formula can be used:
(l-l0)mod4
wherein l represents the time domain symbol position of the current CSI-RS resource, l0The symbol position of the time domain where the first CSI-RS resource is located is represented, and assuming that the CSI-RS resource time domain is configured on the second OFDM symbol, the frequency domain is shifted by one subcarrier from the first CSI-RS resource, that is, the mapping position on the symbol is 0100, as shown in fig. 9.
If there is no CSI-RS resource on the second OFDM symbol, but on the third OFDM symbol, according to the formula, then two subcarriers need to be shifted in the frequency domain, i.e. the corresponding bit is denoted as 0010, as shown in fig. 10.
By analogy, if CSI-RS resources are configured on 14 OFDM symbols of the entire slot, an NR positioning pattern within one slot as shown in fig. 11 can be obtained.
The design method continuously bears some design characteristics of LTE-PRS, frequency domain equidistant characteristics and an effective frequency offset method according to time domain positions.
In order to improve the positioning accuracy, several time slots are usually configured continuously in one period to transmit positioning reference signals, and for resource mapping in the following time slots, there are two mapping methods:
1. for each slot, as with the first slot method, the first CSI-RS resource mapping position in the slot is first determined by 4-bit indication, and the other CSI-RS resources in the slot are determined according to the offset method described above, resulting in the mapping pattern shown in fig. 12.
2. The first CSI-RS resource in the second slot is shifted according to the mapping position of the last CSI-RS resource in the first slot to obtain the mapping position of the first CSI-RS resource, and the other CSI-RS resources in the second slot are determined according to the shifting method described above to obtain the mapping pattern shown in fig. 13.
An embodiment of the present invention further provides a device for configuring a reference signal for positioning, where the device is located in a network side device, as shown in fig. 14, and the device includes:
a first configuration unit 41, configured to configure a CSI-RS set for a mobile terminal, where the CSI-RS set includes multiple CSI-RS resources;
a second configuration unit 42, configured to configure a mapping position of a first CSI-RS resource for the mobile terminal, so that the mobile terminal determines, according to the mapping position of the first CSI-RS resource and time domain symbol positions where other CSI-RS resources are located, mapping positions of other CSI-RS resources.
The configuration device for the reference signal for positioning, provided by the embodiment of the present invention, configures a CSI-RS set for a mobile terminal, where the CSI-RS set includes a plurality of CSI-RS resources, and configures a mapping position of a first CSI-RS resource for the mobile terminal, so that the mobile terminal determines mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and time domain symbol positions where other CSI-RS resources are located, thereby configuring an effective reference signal for NR positioning for the mobile terminal, and further improving positioning accuracy of the mobile terminal.
Optionally, the second configuring unit 42 is configured to configure, through time domain location configuration and frequency domain offset configuration, a mapping location of a first CSI-RS resource for the mobile terminal.
Optionally, the second configuring unit 42 is configured to configure, for multiple consecutive timeslots, a mapping position of a first CSI-RS resource in each timeslot for the mobile terminal, so that the mobile terminal determines, in each timeslot, a mapping position of each other CSI-RS resource according to the mapping position of the first CSI-RS resource and a time domain symbol position where each other CSI-RS resource is located.
Optionally, the second configuring unit 42 is configured to configure, for a plurality of consecutive timeslots, a mapping position of a first CSI-RS resource in a first timeslot for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources in the first time slot according to the mapping position of the first CSI-RS resource in the first time slot and the time domain symbol positions of other CSI-RS resources in the first time slot, and in other time slots, determining the mapping position of the first CSI-RS resource in the time slot according to the mapping position of the last CSI-RS resource in the last time slot, and determining the mapping positions of other CSI-RS resources in the time slot according to the mapping position of the first CSI-RS resource in the time slot and the time domain symbol positions of other CSI-RS resources in the time slot.
The apparatus of this embodiment may be configured to execute the technical solution of the method embodiment applied to the network side device, and the implementation principle and the technical effect of the apparatus are similar, which are not described herein again.
An embodiment of the present invention further provides another configuration apparatus for a reference signal for positioning, where the apparatus is located in a mobile terminal, as shown in fig. 15, and the apparatus includes:
a first receiving unit 51, configured to receive a CSI-RS set configured by a network side device, where the CSI-RS set includes multiple CSI-RS resources;
a second receiving unit 52, configured to receive a mapping position of a first CSI-RS resource configured by the network side device;
and the determining unit 53 is configured to determine the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where other CSI-RS resources are located.
The configuration device for the reference signal for positioning provided by the embodiment of the invention receives a CSI-RS set configured by a network side device, wherein the CSI-RS set comprises a plurality of CSI-RS resources, receives a mapping position of a first CSI-RS resource configured by the network side device, and determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and time domain symbol positions where other CSI-RS resources are located, so that an effective reference signal for NR positioning can be obtained, and the positioning accuracy of a mobile terminal can be improved.
Optionally, the second receiving unit 52 is configured to receive that the network side device configures, through time domain position configuration and frequency domain offset configuration, a mapping position of a first CSI-RS resource for the mobile terminal.
Optionally, the determining unit 53 is configured to determine, according to the mapping position of the last CSI-RS resource and the offset of the time domain symbol position where the CSI-RS resource is located with respect to the time domain symbol position where the last CSI-RS resource is located, the mapping positions of the second CSI-RS resource and the other CSI-RS resources that follow the second CSI-RS resource.
Optionally, for a plurality of consecutive timeslots, the second receiving unit 52 is configured to receive a mapping position of a first CSI-RS resource in each timeslot configured by the network side device;
the determining unit 53 is configured to determine, in each time slot, the mapping position of each other CSI-RS resource according to the mapping position of the first CSI-RS resource and the time domain symbol position where each other CSI-RS resource is located.
Optionally, for a plurality of consecutive time slots, the determining unit 53 is configured to determine, according to the mapping position of the first CSI-RS resource in the first time slot and the time-domain symbol positions of the other CSI-RS resources in the first time slot, the mapping positions of the other CSI-RS resources in the first time slot, and in other time slots, determine the mapping position of the first CSI-RS resource in the current time slot according to the mapping position of the last CSI-RS resource in the previous time slot, and determine the mapping positions of the other CSI-RS resources in the current time slot according to the mapping position of the first CSI-RS resource in the current time slot and the time-domain symbol positions of the other CSI-RS resources in the current time slot.
The apparatus of this embodiment may be configured to implement the technical solution of the above method embodiment applied to the mobile terminal, and the implementation principle and the technical effect are similar, which are not described herein again.
The embodiment of the invention also provides a network side device, which comprises the configuration device of the reference signal for positioning, which is positioned on the network side device.
The embodiment of the invention also provides a mobile terminal which comprises the configuration device of the reference signal for positioning positioned at the mobile terminal.
It will be understood by those skilled in the art that all or part of the processes of the embodiments of the methods described above may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (14)

1. A configuration method of a reference signal for positioning, the method being applied to a network side device, the method comprising:
configuring a CSI-RS set for a mobile terminal, wherein the CSI-RS set comprises a plurality of CSI-RS resources;
configuring a mapping position of a first CSI-RS resource for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of the other CSI-RS resources, wherein the CSI-RS is used for positioning the mobile terminal;
the configuring the mapping position of the first CSI-RS resource for the mobile terminal so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where the other CSI-RS resources are located includes: and for a plurality of continuous time slots, configuring the mapping position of a first CSI-RS resource for the mobile terminal through time domain position configuration and frequency domain offset configuration in each time slot, so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the frequency domain offset of the time domain symbol position of other CSI-RS resources relative to the time domain symbol position of the last CSI-RS resource.
2. The method of claim 1, wherein the configuring the mapping position of the first CSI-RS resource for the mobile terminal, so that the determining, by the mobile terminal, the mapping position of each of the other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time-domain symbol position where each of the other CSI-RS resources is located comprises:
and for a plurality of continuous time slots, respectively configuring the mapping position of the first CSI-RS resource in each time slot for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
3. The method of claim 1, wherein the configuring the mapping position of the first CSI-RS resource for the mobile terminal, so that the determining, by the mobile terminal, the mapping position of each of the other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time-domain symbol position where each of the other CSI-RS resources is located comprises:
and for a plurality of continuous time slots, configuring the mapping position of the first CSI-RS resource in the first time slot for the mobile terminal, so that the mobile terminal determines the mapping positions of other CSI-RS resources in the first time slot according to the mapping position of the first CSI-RS resource in the first time slot and the time domain symbol positions of other CSI-RS resources in the first time slot, determines the mapping position of the first CSI-RS resource in the current time slot according to the mapping position of the last CSI-RS resource in the previous time slot in other time slots, and determines the mapping positions of other CSI-RS resources in the current time slot according to the mapping position of the first CSI-RS resource in the current time slot and the time domain symbol positions of other CSI-RS resources in the current time slot.
4. A method for configuring reference signals for positioning, the method being applied to a mobile terminal, the method comprising:
receiving a CSI-RS set configured by network side equipment, wherein the CSI-RS set comprises a plurality of CSI-RS resources;
receiving a mapping position of a first CSI-RS resource configured by the network side equipment;
determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources, wherein the CSI-RS is used for positioning a mobile terminal;
the receiving the mapping position of the first CSI-RS resource configured by the network side device includes: receiving a mapping position of the network side equipment configured with a first CSI-RS resource by the mobile terminal through time domain position configuration and frequency domain offset configuration;
determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where the other CSI-RS resources are located comprises: and for a plurality of continuous time slots, determining the mapping positions of other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the frequency domain offset of the time domain symbol position of each other CSI-RS resource relative to the time domain symbol position of the last CSI-RS resource.
5. The method of claim 4, wherein the receiving the mapping position of the first CSI-RS resource configured by the network side device for a plurality of consecutive time slots comprises: receiving the mapping position of a first CSI-RS resource in each time slot configured by the network side equipment;
determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where the other CSI-RS resources are located comprises: and determining the mapping positions of other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
6. The method of claim 4, wherein for a plurality of consecutive timeslots, the determining the mapping positions of the other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where the other CSI-RS resources are located includes: determining the mapping positions of other CSI-RS resources in the first time slot according to the mapping position of the first CSI-RS resource in the first time slot and the time domain symbol positions of other CSI-RS resources in the first time slot, determining the mapping position of the first CSI-RS resource in the time slot according to the mapping position of the last CSI-RS resource in the last time slot in other time slots, and determining the mapping positions of other CSI-RS resources in the time slot according to the mapping position of the first CSI-RS resource in the time slot and the time domain symbol positions of other CSI-RS resources in the time slot.
7. An apparatus for configuring a reference signal for positioning, the apparatus being located in a network side device, the apparatus comprising:
the mobile terminal comprises a first configuration unit and a second configuration unit, wherein the first configuration unit is used for configuring a CSI-RS set for the mobile terminal, and the CSI-RS set comprises a plurality of CSI-RS resources;
the second configuration unit is used for configuring the mapping position of the first CSI-RS resource for the mobile terminal so that the mobile terminal can determine the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources, and the CSI-RS is used for positioning the mobile terminal;
the second configuration unit is further configured to configure, for a plurality of consecutive time slots, a mapping position of a first CSI-RS resource for the mobile terminal through time domain position configuration and frequency domain offset configuration in each time slot, so that the mobile terminal determines the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the frequency domain offset of the time domain symbol position of each other CSI-RS resource relative to the time domain symbol position of the last CSI-RS resource.
8. The apparatus of claim 7, wherein the second configuring unit is configured to configure, for multiple consecutive timeslots, a mapping position of a first CSI-RS resource in each timeslot for the mobile terminal, so that the mobile terminal determines, in each timeslot, mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and time-domain symbol positions where other CSI-RS resources are located.
9. The apparatus according to claim 7, wherein the second configuring unit is configured to configure, for a plurality of consecutive timeslots, a mapping position of a first CSI-RS resource in a first timeslot for the mobile terminal, so that the mobile terminal determines, according to the mapping position of the first CSI-RS resource in the first timeslot and a time-domain symbol position where each other CSI-RS resource in the first timeslot is located, a mapping position of each other CSI-RS resource in the first timeslot, determines, in the other timeslots, a mapping position of the first CSI-RS resource in the current timeslot according to a mapping position of a last CSI-RS resource in the previous timeslot, and determines, according to the mapping position of the first CSI-RS resource in the current timeslot and the time-domain symbol position where each other CSI-RS resource is located in the current timeslot, and determining the mapping positions of other CSI-RS resources in the time slot.
10. An apparatus for configuring a reference signal for positioning, the apparatus being located in a mobile terminal, the apparatus comprising:
the device comprises a first receiving unit, a second receiving unit and a third receiving unit, wherein the first receiving unit is used for receiving a CSI-RS set configured by network side equipment, and the CSI-RS set comprises a plurality of CSI-RS resources;
a second receiving unit, configured to receive a mapping position of a first CSI-RS resource configured by the network side device;
the determining unit is used for determining the mapping positions of other CSI-RS resources according to the mapping position of the first CSI-RS resource and the time domain symbol positions where other CSI-RS resources are located, and the CSI-RS is used for positioning a mobile terminal;
the second receiving unit is further configured to receive a mapping position at which the network side device configures the first CSI-RS resource to the mobile terminal through time domain position configuration and frequency domain offset configuration;
the determining unit is further configured to determine, for a plurality of consecutive time slots, the mapping positions of the other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the frequency domain offset of the time domain symbol position where the other CSI-RS resource is located relative to the time domain symbol position where the last CSI-RS resource is located.
11. The apparatus according to claim 10, wherein the second receiving unit is configured to receive, for a plurality of consecutive timeslots, mapping positions of a first CSI-RS resource in each timeslot configured by the network side device;
and the determining unit is used for determining the mapping positions of other CSI-RS resources in each time slot according to the mapping position of the first CSI-RS resource and the time domain symbol positions of other CSI-RS resources.
12. The apparatus of claim 10, wherein for a plurality of consecutive timeslots, the determining unit is configured to determine, according to a mapping position of a first CSI-RS resource in a first timeslot and a time-domain symbol position where each other CSI-RS resource in the first timeslot is located, a mapping position of each other CSI-RS resource in the first timeslot, determine, in the other timeslots, a mapping position of the first CSI-RS resource in the current timeslot according to a mapping position of a last CSI-RS resource in a previous timeslot, and determine, according to the mapping position of the first CSI-RS resource in the current timeslot and the time-domain symbol position where each other CSI-RS resource in the current timeslot is located, a mapping position of each other CSI-RS resource in the current timeslot.
13. A network side device, characterized in that the network side device comprises the configuration apparatus of the reference signal for positioning according to any one of claims 7 to 9.
14. A mobile terminal, characterized in that it comprises means for configuring reference signals for positioning according to any of claims 10 to 12.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102111879A (en) * 2009-12-29 2011-06-29 中国移动通信集团公司 Method and equipment for distributing resources and sending channel state information pilot signal
CN103634899A (en) * 2012-08-20 2014-03-12 华为技术有限公司 Terminal positioning method, base station and user device
CN105580297A (en) * 2013-09-27 2016-05-11 三星电子株式会社 Methods and apparatus for discovery signals for LTE advanced
CN106912101A (en) * 2015-12-22 2017-06-30 北京展讯高科通信技术有限公司 Reaching time-difference positioning mode and device
CN108282288A (en) * 2017-01-05 2018-07-13 华为技术有限公司 A kind of method of reference signal configuration, base station, user equipment and system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017111494A1 (en) * 2015-12-22 2017-06-29 Samsung Electronics Co., Ltd. Scheme for configuring reference signal and communicating channel state information in a wireless communication system using multiple antenna ports

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102111879A (en) * 2009-12-29 2011-06-29 中国移动通信集团公司 Method and equipment for distributing resources and sending channel state information pilot signal
CN103634899A (en) * 2012-08-20 2014-03-12 华为技术有限公司 Terminal positioning method, base station and user device
CN105580297A (en) * 2013-09-27 2016-05-11 三星电子株式会社 Methods and apparatus for discovery signals for LTE advanced
CN106912101A (en) * 2015-12-22 2017-06-30 北京展讯高科通信技术有限公司 Reaching time-difference positioning mode and device
CN108282288A (en) * 2017-01-05 2018-07-13 华为技术有限公司 A kind of method of reference signal configuration, base station, user equipment and system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Evolved Universal Terrestrial Radio Access (E-UTRA)；Physical channels and modulation;3GPP;《3GPP TS 36.211 V13.10.0 (2018-06)》;20180629;6.10.5 *

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