CN114071704B - Communication method and system supporting positioning measurement - Google Patents

Communication method and system supporting positioning measurement Download PDF

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Publication number
CN114071704B
CN114071704B CN202111241473.7A CN202111241473A CN114071704B CN 114071704 B CN114071704 B CN 114071704B CN 202111241473 A CN202111241473 A CN 202111241473A CN 114071704 B CN114071704 B CN 114071704B
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Prior art keywords
positioning measurement
positioning
processing unit
reference signal
baseband processing
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CN114071704A (en
Inventor
王绍磊
齐望东
黄永明
徐佳
郭毅
潘孟冠
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Network Communication and Security Zijinshan Laboratory
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Network Communication and Security Zijinshan Laboratory
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The invention relates to a communication method and a system supporting positioning measurement. The method comprises the following steps: the 5G core network sends a positioning measurement request to the baseband processing unit; the baseband processing unit sends the information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit; after receiving the positioning measurement request, the radio frequency unit performs positioning measurement through an uplink reference signal sent by the received terminal, and sends a positioning measurement response to the baseband processing unit after the measurement is completed; and the baseband processing unit sends the positioning measurement response to the 5G core network. The method and the system can unload the calculation pressure of the baseband unit, improve the parallel multi-user positioning capacity and reduce the positioning delay of a physical layer.

Description

Communication method and system supporting positioning measurement
Technical Field
The invention relates to the technical field of positioning, in particular to a method and a system for positioning through a 5G communication system.
Background
With the development of the fields of the Internet of things, smart cities and the like, the indoor and outdoor high-precision positioning demands of surrounding personnel and objects are stronger. The positioning technology plays an important role in the fields of intelligent factories, automatic driving, security monitoring and the like. Positioning technology based on the 5G communication system can greatly improve positioning accuracy by virtue of the characteristics of large bandwidth, multiple antennas, dense layout and the like. For this reason, the 3GPP R16/R17 version has been specially studied and standardized for positioning functions, and a maximum of 20cm positioning accuracy and 100ms end-to-end delay performance have been proposed.
The 5G positioning technology is newly added with positioning technologies such as UL-AOA (Uplink Angel of Arrival, uplink Arrival angle), UL-TDOA (Uplink TIME DIFFERENCE of Arrival, uplink Arrival time difference), multi-RTT (Multiple Round Trip Time, multi-path round trip time), DL-AOD (Downlink Angel of Departure, downlink departure angle) and the like. New UL SRS-Pos (Uplink Sounding REFERENCE SIGNAL ) and DL PRS (Downlink Positioning REFERENCE SIGNAL, downlink positioning reference signal) are also designed, and a new positioning network architecture is constructed.
The 3GPP specifications do not specify how these positioning techniques are implemented in a 5G communication system.
Disclosure of Invention
Based on this, there is a need to provide a method and system for supporting communication of positioning measurements.
A communication method supporting positioning measurements, said method comprising:
the 5G core network sends a positioning measurement request to the baseband processing unit;
The baseband processing unit sends the information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit;
after receiving the information of the auxiliary positioning measurement, the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal, and sends a positioning measurement response to the baseband processing unit after the measurement is completed;
and the baseband processing unit sends the positioning measurement response to the 5G core network.
In one embodiment, before the 5G core network sends the positioning measurement request to the baseband processing unit, the method further includes:
The 5G core network sends a positioning information request to the baseband processing unit;
The baseband processing unit allocates uplink reference signal resources after receiving the positioning information request, feeds back positioning information response to the 5G core network, and simultaneously transmits uplink reference signal resource allocation to the terminal;
the uplink reference signal is an SRS signal, and the resource allocation includes: frequency domain resource allocation, time domain resource allocation, code domain resource allocation, and periodicity of SRS channel transmission.
In one embodiment, the baseband processing unit sends information of the assisted positioning measurement in the positioning measurement request to the radio frequency unit, including: and according to the uplink reference signal configuration information of the terminal, informing the radio frequency unit in real time through the forwarding interface to perform positioning measurement.
In one embodiment, the performing positioning measurement by using the received uplink reference signal sent by the terminal includes:
processing the received radio frequency time domain signal into frequency domain data after being calibrated;
performing channel estimation according to the calibrated frequency domain data and the local ZC root sequence;
SRS configuration information for positioning measurement is extracted from the channel estimation result, and measurement calculation is performed.
In one embodiment, the processing the received rf time-domain signal into the aligned frequency-domain data includes:
Down-converting the received radio frequency time domain signal to a baseband signal, and performing Fourier transform on the obtained baseband signal;
And performing accurate compensation on the transformed data.
In one embodiment, the local ZC root sequence is generated according to SRS configuration information.
In one embodiment, the extracting SRS configuration information for performing positioning measurement from the channel estimation result, and performing measurement calculation includes:
performing inverse Fourier transform on the channel estimation result;
Extracting SRS time domain information from an inverse Fourier transform result;
And performing measurement calculation according to the SRS time domain information.
In one embodiment, the baseband processing unit includes a centralized unit and a distributed unit, where the distributed unit and the radio frequency unit communicate through eCPRI interfaces;
the baseband processing unit sends the information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit, and specifically includes: transmitting a scheduling command and a beam forming command of the auxiliary positioning measurement request through a control plane data stream;
the radio frequency unit sends a positioning measurement response to the baseband processing unit, and specifically comprises the following steps: and transmitting the positioning measurement data through the control plane data stream.
In one embodiment, the message encapsulation layer in the control plane data flow follows an open radio access network definition; the first layer of the message encapsulation layer is eCPRI transport header containing a message type indication; the second layer of the message encapsulation layer is an application layer header containing a segment type.
In one embodiment, the common header information in the application layer header includes:
The data transmission direction is used for indicating the base station to send or receive;
the segment number is used for indicating the number of users existing in the current SRS resource scheduling;
segment type, used to define SRS measurement request and feedback.
In one embodiment, the common header information in the application layer header further includes:
eCPRI version numbers for recording the version numbers of the currently used eCPRI interface protocols;
channel filter index, eCPRI protocol common field, default to 0;
the frame number is used for storing the number of the frame where the current message is located;
The subframe number is used for storing the number of the subframe where the current message is located;
The time slot number is used for storing the number of the time slot where the current message is located;
and the SRS start symbol position is used for storing the start position of the symbol recording the SRS information in the subframe.
In one embodiment, the information in the location measurement request includes:
the message type is used for indicating whether the current message is a positioning measurement request or a positioning measurement feedback;
generating a sequence ID number;
and the terminal identifier is used for identifying the terminal for transmitting the uplink reference signal.
In one embodiment, the information in the positioning measurement request further includes:
The message length is used for storing the total length of the current message;
the number of SRS ports is used for storing the number of SRS ports used in SRS configuration;
the SRS transmission comb size is used for storing the size of the SRS transmission comb determined in the SRS configuration;
the transmission comb offset is used for storing the offset of the SRS transmission comb determined in the SRS configuration;
the cyclic shift position is a cyclic shift value set for the corresponding transmission comb;
A time domain symbol length, a number of consecutive symbols starting from the SRS start symbol;
A starting physical resource block position for indicating a number of a starting physical resource block of the current message;
The number of physical resource blocks is used to indicate the number of physical resource blocks occupied by the current message.
In one embodiment, the information in the positioning measurement response includes:
the message type is used for indicating whether the current message is a positioning measurement request or a positioning measurement feedback;
a terminal identifier for identifying a terminal transmitting an uplink reference signal;
the horizontal arrival angle is an included angle between the direction of the signal from the terminal to the radio frequency unit and the horizontal direction and is one of parameters for positioning measurement;
the vertical arrival angle is an included angle between the direction of the signal from the terminal to the radio frequency unit and the vertical direction, and is one of parameters for positioning measurement;
An angular coordinate system for indicating the use of a global coordinate system or a local coordinate system.
In one embodiment, the information in the positioning measurement response further includes:
The message length is used for storing the total length of the current message;
The quality index of the uplink reference signal sent from the terminal to the radio frequency unit is used for carrying out one of the parameters of positioning measurement;
relative time of arrival, one of the parameters for making positioning measurements.
In one embodiment, the measurement calculation includes at least one of an AOA estimate, an RSRP estimate, an RTOA estimate.
In one embodiment, the step of positioning measurement is implemented by a software program using existing hardware resources of the radio frequency unit; or alternatively
Adding additional field programmable gate arrays or application specific integrated chips to implement the positioning measurement step.
A communication system supporting positioning measurements, comprising:
The 5G core network is used for sending a positioning information request to the baseband processing unit, sending a positioning measurement request to the baseband processing unit after receiving the positioning information response, receiving the positioning measurement response fed back by the baseband processing unit, and carrying out positioning calculation according to the received positioning measurement data;
The baseband processing unit is used for carrying out uplink reference signal resource allocation after receiving the positioning information request, feeding back positioning information response to the 5G core network, and simultaneously sending uplink reference signal configuration to the terminal; extracting auxiliary positioning measurement information from a positioning measurement request of the 5G core network and sending the auxiliary positioning measurement information to the radio frequency unit;
and the radio frequency unit is used for carrying out positioning measurement through the received uplink reference signal sent by the terminal after receiving the positioning measurement request, and sending a positioning measurement response to the baseband processing unit after the measurement is completed.
In one embodiment, the baseband processing unit includes a centralized unit and a distributed unit, where the distributed unit communicates with the radio frequency unit through a eCPRI interface.
A communication method supporting positioning measurement, said method being applied to a 5G core network, comprising:
Transmitting a positioning information request to a baseband processing unit so that the baseband processing unit performs uplink reference signal resource allocation and simultaneously transmits uplink reference signal resource allocation to a terminal;
After receiving a positioning information response fed back by the baseband processing unit, sending a positioning measurement request to the baseband processing unit, so that the baseband processing unit sends information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit, and further, the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal, and sends a positioning measurement response to the baseband processing unit after the radio frequency unit finishes measuring;
and receiving the positioning measurement response fed back by the baseband processing unit.
A communication method supporting positioning measurement, said method being applied to a baseband processing unit, comprising:
Receiving a positioning information request sent by a 5G core network;
After receiving the positioning information request, uplink reference signal resource allocation is carried out, positioning information response is fed back to the 5G core network, and uplink reference signal resource allocation is sent to the terminal;
Receiving a positioning measurement request sent by a 5G core network, and sending information of auxiliary positioning measurement in the positioning measurement request to a radio frequency unit, so that the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal after receiving the positioning measurement request, and sends a positioning measurement response to a baseband processing unit after the measurement is completed;
And sending the positioning measurement response to a 5G core network.
A communication method supporting positioning measurement, said method being applied to a radio frequency unit, comprising:
After the baseband processing unit allocates uplink reference signal resources according to the positioning information request of the 5G core network and transmits the uplink reference signal resource allocation to the terminal, the information of auxiliary positioning measurement in the positioning measurement request transmitted by the baseband processing unit is received and transmitted to the baseband processing unit by the 5G core network;
After receiving the information of auxiliary positioning measurement in the positioning measurement request, performing positioning measurement through an uplink reference signal sent by a received terminal, and sending a positioning measurement response to a baseband processing unit after the measurement is completed;
The positioning measurement response is sent to the 5G core network by the baseband processing unit.
According to the communication method and the communication system supporting positioning measurement, the baseband processing unit and the 5G core network determine the positioning task, and the radio frequency unit specifically performs positioning measurement according to the uplink reference signal, so that the method in a specific 5G communication system is realized. And the radio frequency unit performs positioning measurement according to the uplink reference signal, so that the calculation pressure of the baseband processing unit is dispersed, the operation time and the data transmission time delay of the base station are greatly shortened, the parallel multi-user positioning capacity is improved, and the physical layer positioning delay is reduced.
Drawings
FIG. 1 is a diagram of an overall architecture of a 5G network;
FIG. 2 is a 5GRAN architecture diagram;
FIG. 3 is a communication system suitable for use with embodiments of the present application;
FIG. 4 is a timing diagram of a communication method supporting positioning measurement according to an embodiment;
fig. 5 is a timing diagram of a confirmation positioning task between a core network and a base station;
Fig. 6 is a timing diagram of positioning measurements between a core network and a base station;
fig. 7 is a flow chart of a positioning measurement performed by the radio frequency unit.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
It should be understood that the names of all network elements, nodes or messages in the present application are merely names set for convenience of description, and names in actual networks may be different, and it should not be understood that the present application is limited to the names of various network elements, nodes, and messages, instead, any names having the same or similar functions as those of the network elements, nodes, or messages used in the present application are regarded as methods or equivalent alternatives of the present application, and are not repeated in the scope of protection of the present application.
Definition and abbreviation:
5GC:5 th -Generation Core,5G Core network
AMF: ACCESS AND Mobility Management Function Access and mobility management functionality
BBU: baseband Unit, baseband processing Unit
CPRI: common Public Radio Interface universal public radio interface
CU: central Unit and centralized Unit
DU: distributed Unit, distributed Unit
ECPRI: enhanced Common Public Radio Interface enhanced universal public radio interface
E-UTRA: evolved-UMTS Terrestrial Radio Access, evolved UMTS terrestrial radio access
E-SMLC: ENHANCED SERVING Mobile Location Center enhanced services mobility management center
LAA: LICENSE ASSISTED ACCESS, grant auxiliary access
MAC: MEDIA ACCESS Control, media access Control
NB-IoT: narrow Band-Internet of Things, narrowband Internet of things
NG-RAN: next Generation Radio Access Network next generation radio access network
NRPP: new Radio Positioning protocol Wireless positioning protocol
ORAN: open Radio ACCESS NET, open Radio access network
PDA: personal DIGITAL ASSISTANT Personal digital assistant
PDCP: PACKET DATA Convergence Protocol packet data convergence protocol
PHY: port PHYSICAL LAYER, port physical layer
PRACH: physical Random ACCESS CHANNEL, physical Random access channel
RLC: radio Link Control radio link control
RRC: radio Resource Control radio resource control
RRU: radio Remote Unit remote radio unit
SDAP: SERVICE DATA Adaptation Protocol service data adaptation protocol
SLP: SUPL Location Platform SUPL positioning platform
SUPL: secure User Plane Location secure user plane positioning
TRP: TRANSMIT RECEIVE Point, transmission receiving Point
UE: user Equipment
UMTS: universal Mobile Telecommunications System universal mobile communication system
WLAN: wireless Local Access Network WLAN (wireless local area network)
In order to better understand a communication method and a system supporting positioning measurement disclosed in the embodiments of the present application, a network architecture related to the embodiments of the present application is described below.
The overall architecture of the 5G network is shown in fig. 1, including a 5G core network (5 GC) and a base station network (NR-RAN). The 5G core network is connected with the base stations (including 5G base station gNB and 4G base station NG-eNB) through an NG interface, and the base stations are connected through an Xn interface. Wherein, the gNB provides an NR user plane and a control plane for the user terminal, and the ng-eNB provides an E-UTRA user plane and a control plane for the user terminal.
Fig. 2 is a 5G RAN architecture 200. Each gNB in the architecture 200 includes one CU and a plurality of DUs. The CU, as a logical node in the gNB, mainly assumes the protocols and functions of Radio Resource Control (RRC), service Data Adaptation Protocol (SDAP), and Packet Data Convergence Protocol (PDCP) of the gNB. The DU serves as another logical node in the gNB, and mainly assumes protocols and functions of Radio Link Control (RLC), medium Access Control (MAC) and port physical layer (PHY) of the gNB. Wherein part of the functionality of the DU is controlled by the CU. The CU and DU are defined and connected by F1 interface control plane signaling (F1 Application Protocol, F1 AP).
The 5G communication system may also include RRU. The RRU is realized by moving the baseband function part of the baseband processing unit in the radio access network architecture of the original LTE system (4G) upwards to the RRU in the original 4G. The physical layer (PHY) may be divided into a higher layer physical layer (h_phy) and a lower layer physical layer (l_phy), wherein the lower layer physical layer (l_phy) functions may also be moved up to RRU implementations. The DU and RRU communicate through eCPRI interfaces.
Referring to fig. 3, fig. 3 is a communication system suitable for use in embodiments of the present application. It should be noted that, the communication system according to the embodiment of the present application includes, but is not limited to: a narrowband internet of things system, a wireless local area network system, a next generation 5G mobile communication system and the like.
The communication system shown in fig. 3 provides a positioning system 300 suitable for use with the present application. A positioning system 300 includes at least network elements such as a target device 301, a base station (gNB) 302, an Access Management Function (AMF) 303, and a Location Management Function (LMF) 304. Positioning system 300 may also include conventional E-SMLC 305 and SLP 306 network elements. Where E-SMLC 305 is used for control plane positioning and SLP 306 is used for user plane positioning. The target devices 301 in the positioning system 300 described above include, but are not limited to: any one of a User Equipment (UE), a mobile device, a terminal, a station in a Wireless Local Area Network (WLAN), a cellular phone, a cordless phone, a Personal Digital Assistant (PDA), an in-vehicle device, a wearable device, and the like. In the present application, the target device is also referred to as a terminal device or a terminal.
FIG. 4 is a timing diagram of a communication method supporting positioning measurement according to an embodiment. The method comprises the following steps:
Step S401: the 5G core network sends a positioning information request to the baseband processing unit. Referring to fig. 5, the core network in conjunction with fig. 1-3,5G sends NRPPa a message to the 5G base station (gNB) through a Location Management Function (LMF) therein, the content being a location information request (POSITIONING INFORMATION REQUEST).
Step S402: and the baseband processing unit performs uplink reference signal resource allocation after receiving the positioning information request, feeds back positioning information response to the 5G core network, and simultaneously transmits uplink reference signal resource allocation to the terminal. Typically, the uplink reference signal is an SRS signal. Referring to fig. 5, if SRS resource allocation is enabled, the base station (gNB) in conjunction with fig. 1 to 3,5G feeds back NRPPa a message, the content of which is a positioning information response (POSITIONING INFORMATION RESPONSE); if SRS resource allocation is not possible, feedback positioning information fails (POSITIONING INFORMATION FAILURE). In addition, the gNB may also send a location information update to the LMF (POSITIONING INFORMATION UPDATE).
The SRS resource allocation includes: frequency domain resource allocation, time domain resource allocation, and code domain resource allocation, and periodicity of SRS channel transmission. In the 5G specification, one or more SRS resource sets may be configured for a terminal. One SRS resource set may include one or more SRS resources, where the time-frequency domain resource occupied by each SRS resource is: in the R16 version of the 3GPP standard, consecutive 1,2, 4, 8, 12 symbols are occupied in the time domain. The frequency domain may occupy 4-272 RB (Resource Block). The periodicity of SRS channel transmission may be a sustained period or a semi-sustained period, or a non-periodic. The SRS resource allocation further includes: comb (Comb) structure arrangement, port number allocation, etc.
After finishing the SRS configuration, the baseband processing unit reconfigures the message through the RRC layer and informs the user terminal through an air interface.
After the above steps are completed, if the positioning information response is successful, the condition of positioning measurement according to the uplink reference signal is satisfied. Step S403 may be performed.
Step S403: after meeting the condition of positioning measurement according to the uplink reference signal, the 5G core network sends a positioning measurement request to the baseband processing unit. Referring to fig. 6, the core network in conjunction with fig. 1-3,5G sends NRPPa a message to the 5G base station (gNB) through a Location Management Function (LMF) therein, the content being a location measurement request (MEASUREMENT REQUEST).
Step S404: and the baseband processing unit sends the information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit. And the baseband processing unit informs the radio frequency unit of the information of the auxiliary positioning measurement in the positioning measurement request in real time through a forwarding interface (eCPRI interface) according to the uplink reference signal configuration information of the terminal to perform positioning measurement.
The location measurement request transmitted by the 5G core network (gNB) to the baseband processing unit (BBU) includes a large amount of information such as TRP measurement request list, measurement period, slot number, system frame number, SRS configuration information, and the like. But the baseband processing unit (BBU) only sends information for assisting positioning measurement in the received information to the radio frequency unit (RRU), such as SRS configuration information.
The baseband processing unit (BBU) comprises a Centralized Unit (CU) and a Distributed Unit (DU), and the Distributed Unit (DU) and the radio frequency unit (RRU) are communicated through a eCPRI interface; the baseband processing unit sends the information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit, and specifically includes: and sending a scheduling command and a beam forming command of the auxiliary positioning measurement request through a control plane data stream. The specific contents include: scheduling information, FFT size, CP length, subcarrier size, UL PRACH scheduling, UL SRS user scheduling, uplink and downlink beam shaping commands, scheduling, and the like.
In the present application, the message encapsulation layer in the control plane data flow follows the Open Radio Access Network (ORAN) definition, the first layer is a eCPRI transport header containing a message type indication; the second layer is an application layer header containing a segment type. Wherein the segment types in the second layer define 0-7 scenes, respectively: unused resource blocks, symbol scenes, a majority of uplink and downlink wireless channel scenes, PRACH channel scenes, user terminal scheduling information scenes, channel information scenes, LAA scenes and the like. The SRS scheduling and positioning feedback scene which can be used in the application can be expanded on the basis, and the SRS scheduling and positioning feedback scene is represented and distinguished by an application layer head containing segment types.
One exemplary common header information in the application layer header may include:
The data transmission direction is used for indicating the base station to send or receive; can be represented by variable dataDirection.
ECPRI version numbers for recording the version numbers of the currently used eCPRI interface protocols; can be represented by variable payloadVersion.
The channel filter index, which is eCPRI protocol common field, defaults to 0. Can be represented by variable filterIndex.
The frame number, which is used to store the number of the frame in which the current message is located, may be represented by variable frameId.
The number of the subframe, which is used to store the number of the subframe in which the current message is located, may be represented by variable subframeId.
The slot number, which is used to store the number of the slot in which the current message is located, may be represented by variable slotID.
An SRS start symbol position for indicating a start position of a symbol recording SRS information in a subframe; can be represented by variable startSymbolid.
The number of segments is used to indicate the number of users present in the current SRS resource schedule. Can be represented by variable numberOfsections. If there are multiple users in the current SRS resource schedule, the number of segments can indicate that there are multiple segments in the subsequent message, each segment being used to describe the SRS scheduling parameters of one of the users.
Segment type, used to define SRS measurement request and feedback. Can be represented by variable sectionType.
The data transmission direction, the number of segments and the type of the segments are key information for defining the communication schedule to be SRS measurement. The other information is auxiliary communication information. The radio frequency unit can be informed of carrying out the positioning measurement request through the information carried in the control plane message.
Specifically, the information in the positioning measurement request may include:
a message type for indicating whether the message is a positioning measurement request or a positioning measurement feedback; can be represented by variable SRSMESGTYPE.
The message length, used to store the total length of the current message, may be represented by variable SRSMESGLEN.
The number of SRS ports used to store the number of SRS ports used in the SRS configuration may be represented by variable SRSPortNum.
The SRS transmission comb size for storing the size of the SRS transmission comb determined in the SRS configuration may be represented by a variable TransmissionComb.
The transmission comb offset, used to store the offset of the SRS transmission comb determined in the SRS configuration, may be represented by variable CombOffet.
And a cyclic shift position, a cyclic shift value set for the corresponding transmission comb. Can be represented by variable CYCLICSHIFT.
The time domain symbol length, the number of consecutive symbols starting from the SRS start symbol. Can be represented by variable SymbLen.
The starting physical resource block position is used to indicate the number of the starting physical resource block of the current message. Can be represented by variable StartPrbc.
The number of physical resource blocks is used to indicate the number of physical resource blocks occupied by the current message. Can be represented by variable NumPrbc.
The generated sequence ID number may be represented by variable SequenceId.
The terminal identifier, which is used to identify the terminal that sent the uplink reference signal, may be represented by variable ueId.
The above parameters may indicate a time-frequency code of a certain user, and be used for obtaining a received signal of the certain user and a reference signal of the user, and be used for channel estimation and AOA estimation of the user.
Step S405: and after receiving the positioning measurement request, the radio frequency unit performs positioning measurement through the received uplink reference signal sent by the user terminal, and sends a positioning measurement response to the baseband processing unit after the measurement is completed.
The performing positioning measurement by using the received uplink reference signal sent by the user terminal may include:
processing the received radio frequency time domain signal into frequency domain data after being calibrated;
performing channel estimation according to the calibrated frequency domain data and the local ZC root sequence;
SRS configuration information for positioning measurement is extracted from the channel estimation result, and measurement calculation is performed.
In this step, as shown in fig. 7, the radio frequency unit performs positioning measurement through the received uplink reference signal sent by the terminal, which may specifically include:
(1) Down-converting the received radio frequency time domain signal to a baseband signal, and transmitting the obtained baseband signal to a Fourier transform module for performing time-frequency resource transformation.
(2) Performing accurate compensation on the transformed data; because of the non-ideal characteristics of the radio frequency channel and the antenna, the received frequency domain data has certain phase deviation or time deviation, and the obtained data needs to be calibrated and compensated according to the calibration data.
(3) And generating a local ZC root sequence according to the SRS configuration information, namely SRS resource allocation information.
(4) And carrying out channel estimation according to the frequency domain data and the ZC root sequence after the calibration.
(5) And carrying out inverse Fourier transform on the channel estimation result. The channel estimation is a channel frequency domain response, and in order to extract SRS information of the currently located user, an inverse fourier transform from frequency domain to time domain is required.
(6) SRS time domain information is extracted from the inverse Fourier transform result.
(7) And performing measurement calculation according to the SRS time domain information.
The measurement calculation may be an AOA estimation, an RSRP estimation or an RTOA estimation.
As can be seen from the processing procedure of this step, the positioning information measurement is performed by using the radio frequency unit in the present application. The positioning information measurement by using the radio frequency unit can be carried out in two ways, namely, the existing hardware resource of the radio frequency unit is used, and the positioning measurement is realized through a software program; and secondly, adding an additional Field Programmable Gate Array (FPGA) or an Application Specific Integrated Chip (ASIC) to realize the positioning measurement.
And the radio frequency unit sends a positioning measurement response to the baseband processing unit after the measurement is completed. In particular, the information in the positioning measurement response may include:
a message type for indicating whether the message is a positioning measurement request or a positioning measurement feedback; can be represented by variable SRSMESGTYPE.
The message length, used to store the total length of the current message, may be represented by variable SRSMESGLEN.
The terminal identifier, which is used to identify the terminal that sent the uplink reference signal, may be represented by variable UeId.
The horizontal angle of arrival, the angle between the direction of the signal from the terminal to the radio frequency unit and the horizontal direction, one of the parameters for performing positioning measurement can be represented by the variable AOA.
The vertical angle of arrival, the angle between the direction of the signal from the terminal to the radio frequency unit and the vertical direction, one of the parameters used to make the positioning measurement, can be represented by the variable ZOA.
An angular coordinate system for indicating use of a global coordinate system or a local coordinate system; can be represented by variable AngleCoordi.
The quality of the reference signal, the quality index of the uplink reference signal sent from the terminal to the radio frequency unit, one of the parameters used for performing positioning measurement can be represented by a variable RSRP.
One of the parameters for making positioning measurements, relative to the time of arrival, may be represented by the variable RTOA.
The message type, the terminal identifier, the horizontal arrival angle, the vertical arrival angle and the angle coordinate system are necessary information for angle positioning. The reference signal quality and relative time of arrival may be used for other manners of positioning measurement. The radio frequency unit sends a positioning measurement response to the baseband processing unit, and also sends positioning measurement data through the control surface.
Step S406: and the baseband processing unit sends the positioning measurement response to the 5G core network. Referring to fig. 6, the base station gNB sends NRPPa a message, specifically a positioning measurement response, to the LMF (MEASUREMENT RESPONSE).
Step S407: and the 5G core network performs positioning calculation according to the received positioning measurement data. And the 5G core network can calculate and obtain the position information of the terminal according to the positioning measurement data contained in the positioning measurement response. The location information may be used for various positioning applications such as mapping, driving, attendance checking, etc.
The communication method supporting positioning measurement can be respectively described from the angles of the 5G core network, the baseband processing unit and the radio frequency unit, and corresponds to the method applied to the 5G core network, the baseband processing unit and the radio frequency unit. It will be appreciated that the limitations described in the above embodiments for each element in the communication method supporting positioning measurement can be applied to the following three embodiments of the communication method supporting positioning measurement.
An embodiment of a communication method supporting positioning measurement is applied to a 5G core network, and includes:
Transmitting a positioning information request to a baseband processing unit so that the baseband processing unit performs uplink reference signal resource allocation and simultaneously transmits uplink reference signal resource allocation to a terminal;
After receiving a positioning information response fed back by the baseband processing unit, sending a positioning measurement request to the baseband processing unit, so that the baseband processing unit sends information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit, and further, the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal, and sends a positioning measurement response to the baseband processing unit after the radio frequency unit finishes measuring;
and receiving the positioning measurement response fed back by the baseband processing unit.
The communication method supporting positioning measurement of an embodiment is applied to a baseband processing unit and comprises the following steps:
Receiving a positioning information request sent by a 5G core network;
After receiving the positioning information request, uplink reference signal resource allocation is carried out, positioning information response is fed back to the 5G core network, and uplink reference signal resource allocation is sent to the terminal;
Receiving a positioning measurement request sent by a 5G core network, and sending information of auxiliary positioning measurement in the positioning measurement request to a radio frequency unit, so that the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal after receiving the positioning measurement request, and sends a positioning measurement response to a baseband processing unit after the measurement is completed;
And sending the positioning measurement response to a 5G core network.
An embodiment of a communication method supporting positioning measurement is applied to a radio frequency unit, and includes:
After the baseband processing unit allocates uplink reference signal resources according to the positioning information request of the 5G core network and transmits the uplink reference signal resource allocation to the terminal, the information of auxiliary positioning measurement in the positioning measurement request transmitted by the baseband processing unit is received and transmitted to the baseband processing unit by the 5G core network;
After receiving the information of auxiliary positioning measurement in the positioning measurement request, performing positioning measurement through an uplink reference signal sent by a received terminal, and sending a positioning measurement response to a baseband processing unit after the measurement is completed;
The positioning measurement response is sent to the 5G core network by the baseband processing unit.
According to the communication method supporting positioning measurement, the baseband processing unit and the 5G core network determine the positioning task, and the radio frequency unit specifically performs positioning measurement according to the uplink reference signal, so that the method supporting positioning measurement in a specific 5G communication system is realized. And the radio frequency unit performs positioning measurement according to the uplink reference signal, so that the calculation pressure of the baseband processing unit is dispersed, the operation time and the data transmission time delay of the base station are greatly shortened, the parallel multi-user positioning capacity is improved, and the physical layer positioning delay is reduced.
Referring to fig. 1 and 2, a communication system supporting positioning measurements is provided in accordance with an embodiment. The communication system supporting positioning measurement includes:
the 5G core network is used for sending a positioning information request to the baseband processing unit, sending a positioning measurement request to the baseband processing unit after receiving the positioning information response, and receiving the positioning measurement response fed back by the baseband processing unit;
The baseband processing unit is used for carrying out uplink reference signal resource allocation after receiving the positioning information request, feeding back positioning information response to the 5G core network, and simultaneously sending uplink reference signal resource allocation to the terminal; extracting auxiliary positioning measurement information from a positioning measurement request of the 5G core network and sending the auxiliary positioning measurement information to the radio frequency unit;
and the radio frequency unit is used for carrying out positioning measurement through the received uplink reference signal sent by the terminal after receiving the positioning measurement request, and sending a positioning measurement response to the baseband processing unit after the measurement is completed.
The communication system supporting positioning measurement may adopt the architecture shown in fig. 1, or may also adopt other architectures, for example, does not include a 4G base station. The baseband processing unit comprises a centralized unit and a distribution unit, and the distribution unit is communicated with the radio frequency unit through a eCPRI interface. The radio frequency units can be divided by the functional modules shown in fig. 2.
In the communication system supporting positioning measurement, the baseband processing unit and the 5G core network determine the positioning task and the radio frequency unit specifically performs positioning measurement according to the uplink reference signal, so that a method for supporting positioning measurement in a specific 5G communication system is realized. And the radio frequency unit performs positioning measurement according to the uplink reference signal, so that the calculation pressure of the baseband processing unit is dispersed, the operation time and the data transmission time delay of the base station are greatly shortened, the parallel multi-user positioning capacity is improved, and the physical layer positioning delay is reduced.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (21)

1. A communication method supporting positioning measurements, said method comprising:
the 5G core network sends a positioning measurement request to the baseband processing unit;
The baseband processing unit sends the information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit;
after receiving the information of the auxiliary positioning measurement, the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal, and sends a positioning measurement response to the baseband processing unit after the measurement is completed;
the baseband processing unit sends the positioning measurement response to a 5G core network;
The positioning measurement of the uplink reference signal sent by the received terminal comprises:
processing the received radio frequency time domain signal into frequency domain data after being calibrated;
performing channel estimation according to the calibrated frequency domain data and the local ZC root sequence;
And extracting the uplink reference signal for positioning measurement from the channel estimation result, and performing measurement calculation, wherein the uplink reference signal is a channel sounding reference SRS signal.
2. The communication method supporting positioning measurement according to claim 1, further comprising, before the 5G core network sends the positioning measurement request to the baseband processing unit:
The 5G core network sends a positioning information request to the baseband processing unit;
The baseband processing unit allocates uplink reference signal resources after receiving the positioning information request, feeds back positioning information response to the 5G core network, and simultaneously transmits uplink reference signal resource allocation to the terminal;
The uplink reference signal resource allocation includes: frequency domain resource allocation, time domain resource allocation, code domain resource allocation, and periodicity of SRS channel transmission.
3. The communication method according to claim 1, wherein the baseband processing unit sends information for assisting in positioning measurement in the positioning measurement request to a radio frequency unit, comprising: and according to the uplink reference signal configuration information of the terminal, informing the radio frequency unit in real time through the forwarding interface to perform positioning measurement.
4. The communication method according to claim 1, wherein the processing the received rf time-domain signal into the aligned frequency-domain data comprises:
Down-converting the received radio frequency time domain signal to a baseband signal, and performing Fourier transform on the obtained baseband signal;
And performing accurate compensation on the transformed data.
5. The communication method supporting positioning measurement according to claim 1, wherein the local ZC root sequence is generated according to SRS configuration information.
6. The communication method according to claim 4, wherein the extracting SRS configuration information for performing positioning measurement from the channel estimation result and performing measurement calculation includes:
performing inverse Fourier transform on the channel estimation result;
Extracting SRS time domain information from an inverse Fourier transform result;
And performing measurement calculation according to the SRS time domain information.
7. The communication method supporting positioning measurement according to claim 1, wherein the baseband processing unit comprises a centralized unit and a distributed unit, and the distributed unit communicates with the radio frequency unit through eCPRI interfaces;
the baseband processing unit sends the information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit, and specifically includes: transmitting a scheduling command and a beam forming command of the auxiliary positioning measurement request through a control plane data stream;
the radio frequency unit sends a positioning measurement response to the baseband processing unit, and specifically comprises the following steps: and transmitting the positioning measurement data through the control plane data stream.
8. The communication method supporting positioning measurements according to claim 7, wherein a message encapsulation layer in the control plane data flow follows an open radio access network definition; the first layer of the message encapsulation layer is eCPRI transport header containing a message type indication; the second layer of the message encapsulation layer is an application layer header containing a segment type.
9. The communication method supporting positioning measurement according to claim 8, wherein the common header information in the application layer header comprises:
The data transmission direction is used for indicating the base station to send or receive;
the segment number is used for indicating the number of users existing in the current SRS resource scheduling;
segment type, used to define SRS measurement request and feedback.
10. The communication method supporting positioning measurement according to claim 9, wherein the common header information in the application layer header further comprises:
eCPRI version numbers for recording the version numbers of the currently used eCPRI interface protocols;
channel filter index, eCPRI protocol common field, default to 0;
the frame number is used for storing the number of the frame where the current message is located;
The subframe number is used for storing the number of the subframe where the current message is located;
The time slot number is used for storing the number of the time slot where the current message is located;
and the SRS start symbol position is used for storing the start position of the symbol recording the SRS information in the subframe.
11. The communication method supporting positioning measurement according to claim 8, wherein the information in the positioning measurement request includes:
the message type is used for indicating whether the current message is a positioning measurement request or a positioning measurement feedback;
generating a sequence ID number;
and the terminal identifier is used for identifying the terminal for transmitting the uplink reference signal.
12. The communication method supporting positioning measurement according to claim 11, wherein the information in the positioning measurement request further comprises:
The message length is used for storing the total length of the current message;
the number of SRS ports is used for storing the number of SRS ports used in SRS configuration;
the SRS transmission comb size is used for storing the size of the SRS transmission comb determined in the SRS configuration;
the transmission comb offset is used for storing the offset of the SRS transmission comb determined in the SRS configuration;
the cyclic shift position is a cyclic shift value set for the corresponding transmission comb;
A time domain symbol length, a number of consecutive symbols starting from the SRS start symbol;
A starting physical resource block position for indicating a number of a starting physical resource block of the current message;
The number of physical resource blocks is used to indicate the number of physical resource blocks occupied by the current message.
13. The communication method supporting positioning measurements according to claim 8, wherein the information in the positioning measurement response comprises:
the message type is used for indicating whether the current message is a positioning measurement request or a positioning measurement feedback;
a terminal identifier for identifying a terminal transmitting an uplink reference signal;
the horizontal arrival angle is an included angle between the direction of the signal from the terminal to the radio frequency unit and the horizontal direction and is one of parameters for positioning measurement;
the vertical arrival angle is an included angle between the direction of the signal from the terminal to the radio frequency unit and the vertical direction, and is one of parameters for positioning measurement;
An angular coordinate system for indicating the use of a global coordinate system or a local coordinate system.
14. The communication method supporting positioning measurements according to claim 13, wherein the information in the positioning measurement response further comprises:
The message length is used for storing the total length of the current message;
The quality index of the uplink reference signal sent from the terminal to the radio frequency unit is used for carrying out one of the parameters of positioning measurement;
relative time of arrival, one of the parameters for making positioning measurements.
15. A communication method supporting positioning measurements according to claim 1, wherein the measurement calculations comprise at least one of AOA estimation, RSRP estimation, RTOA estimation.
16. The communication method supporting positioning measurement according to claim 7, wherein said positioning measurement step is implemented by a software program using existing hardware resources of a radio frequency unit; or alternatively
Adding additional field programmable gate arrays or application specific integrated chips to implement the positioning measurement step.
17. A communication system supporting positioning measurements, comprising:
The 5G core network is used for sending a positioning information request to the baseband processing unit, sending a positioning measurement request to the baseband processing unit after receiving the positioning information response, receiving the positioning measurement response fed back by the baseband processing unit, and carrying out positioning calculation according to the received positioning measurement data;
The baseband processing unit is used for carrying out uplink reference signal resource allocation after receiving the positioning information request, feeding back positioning information response to the 5G core network, and simultaneously sending uplink reference signal configuration to the terminal; extracting auxiliary positioning measurement information from a positioning measurement request of the 5G core network and sending the auxiliary positioning measurement information to the radio frequency unit;
the radio frequency unit is used for carrying out positioning measurement through the received uplink reference signal sent by the terminal after receiving the positioning measurement request, and sending a positioning measurement response to the baseband processing unit after the measurement is completed;
The radio frequency unit is further used for processing the received radio frequency time domain signal into frequency domain data after being calibrated; performing channel estimation according to the calibrated frequency domain data and the local ZC root sequence; and extracting the uplink reference signal for positioning measurement from the channel estimation result, and performing measurement calculation, wherein the uplink reference signal is a channel sounding reference SRS signal.
18. The communication system of claim 17, wherein the baseband processing unit comprises a centralized unit and a distributed unit, the distributed unit communicating with the radio frequency unit via a eCPRI interface.
19. A communication method supporting positioning measurement, wherein the method is applied to a 5G core network, and comprises:
Transmitting a positioning information request to a baseband processing unit so that the baseband processing unit performs uplink reference signal resource allocation and simultaneously transmits uplink reference signal resource allocation to a terminal;
After receiving a positioning information response fed back by the baseband processing unit, sending a positioning measurement request to the baseband processing unit, so that the baseband processing unit sends information of auxiliary positioning measurement in the positioning measurement request to the radio frequency unit, and further, the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal, and sends a positioning measurement response to the baseband processing unit after the radio frequency unit finishes measuring;
receiving the positioning measurement response fed back by the baseband processing unit;
The positioning measurement of the uplink reference signal sent by the received terminal comprises: processing the received radio frequency time domain signal into frequency domain data after being calibrated; performing channel estimation according to the calibrated frequency domain data and the local ZC root sequence; and extracting the uplink reference signal for positioning measurement from the channel estimation result, and performing measurement calculation, wherein the uplink reference signal is a channel sounding reference SRS signal.
20. A communication method supporting positioning measurement, wherein the method is applied to a baseband processing unit, and comprises:
Receiving a positioning information request sent by a 5G core network;
After receiving the positioning information request, uplink reference signal resource allocation is carried out, positioning information response is fed back to the 5G core network, and uplink reference signal resource allocation is sent to the terminal;
Receiving a positioning measurement request sent by a 5G core network, and sending information of auxiliary positioning measurement in the positioning measurement request to a radio frequency unit, so that the radio frequency unit performs positioning measurement through an uplink reference signal sent by a received terminal after receiving the positioning measurement request, and sends a positioning measurement response to a baseband processing unit after the measurement is completed;
transmitting the positioning measurement response to a 5G core network;
The positioning measurement of the uplink reference signal sent by the received terminal comprises: processing the received radio frequency time domain signal into frequency domain data after being calibrated; performing channel estimation according to the calibrated frequency domain data and the local ZC root sequence; and extracting the uplink reference signal for positioning measurement from the channel estimation result, and performing measurement calculation, wherein the uplink reference signal is a channel sounding reference SRS signal.
21. A communication method supporting positioning measurement, said method being applied to a radio frequency unit and comprising:
After the baseband processing unit allocates uplink reference signal resources according to the positioning information request of the 5G core network and transmits the uplink reference signal resource allocation to the terminal, the information of auxiliary positioning measurement in the positioning measurement request transmitted by the baseband processing unit is received and transmitted to the baseband processing unit by the 5G core network;
After receiving the information of auxiliary positioning measurement in the positioning measurement request, performing positioning measurement through an uplink reference signal sent by a received terminal, and sending a positioning measurement response to a baseband processing unit after the measurement is completed;
the positioning measurement response is sent to a 5G core network by a baseband processing unit;
The positioning measurement of the uplink reference signal sent by the received terminal comprises:
Processing the received radio frequency time domain signal into frequency domain data after being calibrated; performing channel estimation according to the calibrated frequency domain data and the local ZC root sequence; and extracting the uplink reference signal for positioning measurement from the channel estimation result, and performing measurement calculation, wherein the uplink reference signal is a channel sounding reference SRS signal.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103797871A (en) * 2011-10-03 2014-05-14 联发科技股份有限公司 Support of network based positioning by sounding reference signal
WO2016032265A1 (en) * 2014-08-29 2016-03-03 엘지전자 주식회사 Method and user equipment for performing measurement to support positioning, method and positioning server for supporting positioning, and base station for supporting positioning
CN111356075A (en) * 2018-12-22 2020-06-30 华为技术有限公司 Multi-site positioning method and device
CN113302993A (en) * 2019-01-04 2021-08-24 华为技术有限公司 Sounding reference signal based on uplink multi-cell measurement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103797871A (en) * 2011-10-03 2014-05-14 联发科技股份有限公司 Support of network based positioning by sounding reference signal
WO2016032265A1 (en) * 2014-08-29 2016-03-03 엘지전자 주식회사 Method and user equipment for performing measurement to support positioning, method and positioning server for supporting positioning, and base station for supporting positioning
CN111356075A (en) * 2018-12-22 2020-06-30 华为技术有限公司 Multi-site positioning method and device
CN113302993A (en) * 2019-01-04 2021-08-24 华为技术有限公司 Sounding reference signal based on uplink multi-cell measurement

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