CN113099380A - Method and related device for sending positioning pilot frequency - Google Patents
Method and related device for sending positioning pilot frequency Download PDFInfo
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- CN113099380A CN113099380A CN202110372812.9A CN202110372812A CN113099380A CN 113099380 A CN113099380 A CN 113099380A CN 202110372812 A CN202110372812 A CN 202110372812A CN 113099380 A CN113099380 A CN 113099380A
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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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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Abstract
The application provides a method for sending a positioning pilot frequency and a related device, wherein the method applied to a base station comprises the following steps: sending a first high-level signaling to all terminals of a service cell; the first high-level signaling comprises issuing parameter information of a base station issuing periodic positioning pilot frequency; only sending a second high-level signaling to a target terminal of the serving cell; the target terminal is a terminal with high-precision positioning requirement in a service cell; the second high-level signaling comprises the sending parameter information of the non-periodic positioning pilot frequency sent by the base station; sending periodic positioning pilot signals to a serving cell every preset time length; and at least issuing the non-periodic positioning pilot signal to the service cell in the middle time slot of the two adjacent issuing periodic positioning pilot signals. According to the method and the device, the positioning requirement of the terminal with the high-precision positioning requirement can be met on the premise that the positioning requirement of the terminal with the non-high-precision positioning requirement is not influenced.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a method and a related apparatus for sending a positioning pilot.
Background
The application requirements of positioning put more and more strict requirements on the time delay and positioning accuracy of positioning. The third Generation partnership Project (3 GPP) NR radio technology can work in high and low frequency bands, supports a larger signal bandwidth, can implement a new positioning performance limit by using a positioning technology based on timing measurement such as Observed Time Difference of Arrival (OTDOA) and uplink Time Difference of Arrival (UTDOA), Cell-ID (Cell-ID) or improved Cell-ID (E-Cell-ID), and can implement more accurate user positioning by using a large-scale antenna array for NR and combining timing measurement using space and angle domains of a propagation channel.
In the NR Positioning technology of the current 3GPP Rel-16 version, a periodic downlink Positioning Pilot (PRS) is used. That is, the terminals in the same cell receive the same positioning periodic signals and have the same positioning accuracy.
However, in practice, the requirements of different terminals on the positioning accuracy of the positioning service are different, so that the periodic downlink positioning pilot frequency cannot meet the positioning accuracy required by the terminal with the high-accuracy positioning requirement.
Disclosure of Invention
The application provides a sending method and a related device of a positioning pilot frequency, aiming at solving the problem that the positioning precision required by a terminal of which the periodic downlink positioning pilot frequency can not meet the requirement of high-precision positioning.
In order to achieve the above object, the present application provides the following technical solutions:
the application provides a method for sending a positioning pilot frequency, which is applied to a base station and comprises the following steps:
sending a first high-level signaling to all terminals of a service cell; the first high-level signaling comprises issuing parameter information of the base station issuing periodic positioning pilot frequency;
only sending a second high-level signaling to a target terminal of the service cell; the target terminal is a terminal with high-precision positioning requirement in a service cell; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station;
sending periodic positioning pilot signals to the serving cell every preset time length;
and at least issuing non-periodic positioning pilot signals to the service cell in the middle time slot of two adjacent issuing periodic positioning pilot signals.
Optionally, the issuing the aperiodic positioning pilot signal in the middle time slot of two adjacent issuing periodic positioning pilot signals includes:
issuing non-periodic positioning pilot signals in the middle time slot of the two adjacent issued periodic positioning pilot signals; the sending time of the non-periodic positioning pilot frequency signal is uniformly distributed within the sending interval time of the periodic positioning pilot frequency.
Optionally, the issued parameter information included in the first high-level signaling includes a first symbol position; the first symbol position is a symbol position of a sending opportunity of the base station issuing the periodic positioning pilot frequency; the issued parameter information contained in the second high-level signaling comprises a second symbol position; the second symbol position is a symbol position of a sending opportunity of the non-periodic positioning pilot frequency issued by the base station;
wherein the first symbol position is the same as or different from the second symbol position.
Optionally, the issuing, at least to the serving cell, an aperiodic positioning pilot signal in a middle time slot of two adjacent issued periodic positioning pilot signals includes:
and issuing non-periodic positioning pilot signals to the service cell and the adjacent cells of the service cell in the middle time slot of the two adjacent issued periodic positioning pilot signals.
The application also provides a method for sending the positioning pilot frequency, which is applied to a terminal and comprises the following steps:
receiving a first high-level signaling and a second high-level signaling under the condition that the terminal is a target terminal; the target terminal is a terminal with high-precision positioning requirement; the first high-level signaling comprises issuing parameter information of a base station issuing periodic positioning pilot frequency; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station; receiving a periodic positioning pilot signal according to the issued parameter information contained in the first high-level signaling; receiving an aperiodic positioning pilot signal according to the issued parameter information contained in the second high-level signaling;
and under the condition that the terminal is a non-target terminal, receiving the first high-level signaling, and receiving a periodic positioning pilot signal according to the issued parameter information in the first high-level signaling.
Optionally, when the terminal is a target terminal, before receiving the first high layer signaling and the second high layer signaling, the method further includes:
sending signaling to the base station; the signaling is used for indicating whether the terminal is a terminal with high-precision positioning requirement or not.
The present application further provides a device for sending a positioning pilot, which is applied to a base station, and includes:
the first signaling issuing module is used for issuing a first high-level signaling to all terminals of a service cell; the first high-level signaling comprises issuing parameter information of the base station issuing periodic positioning pilot frequency;
a second signaling issuing module, configured to issue a second high-level signaling only to a target terminal of the serving cell; the target terminal is a terminal with high-precision positioning requirement in a service cell; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station;
the first signal issuing module is used for issuing periodic positioning pilot signals to the service cell at intervals of preset duration;
and the second signal issuing module is used for issuing non-periodic positioning pilot signals to the service cell at least in the middle time slot of the periodic positioning pilot signals issued twice adjacently.
The present application further provides a sending apparatus for positioning pilot, which is applied to a terminal, and includes:
a first execution module, configured to receive a first high-level signaling and a second high-level signaling when the terminal is a target terminal; the target terminal is a terminal with high-precision positioning requirement; the first high-level signaling comprises issuing parameter information of a base station issuing periodic positioning pilot frequency; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station; receiving a periodic positioning pilot signal according to the issued parameter information contained in the first high-level signaling; receiving an aperiodic positioning pilot signal according to the issued parameter information contained in the second high-level signaling;
and the second execution module is used for receiving the first high-level signaling under the condition that the terminal is a non-target terminal, and receiving the periodic positioning pilot signal according to the issued parameter information in the first high-level signaling.
The application also provides a device, which comprises at least one processor, at least one memory connected with the processor, and a bus; the processor and the memory complete mutual communication through the bus; the processor is configured to call the program instructions in the memory to execute the method for sending the positioning pilot described above as applied to any base station.
The application also provides a device, which comprises at least one processor, at least one memory connected with the processor, and a bus; the processor and the memory complete mutual communication through the bus; the processor is configured to invoke program instructions in the memory to perform a method for transmitting a positioning pilot applied to a terminal.
According to the method and the related device for sending the positioning pilot frequency, the base station sends a first high-level signaling to all terminals in the service cell, the first high-level signaling comprises sending parameter information of the periodic positioning pilot frequency sent by the base station, and only sends a second high-level signaling to a target terminal in the service cell, wherein the target terminal is a terminal with high positioning requirements, and the second high-level signaling comprises sending parameter information of the non-periodic positioning pilot frequency sent by the base station. The base station sends periodic positioning pilot signals to the service cell every other preset time length, and at least sends non-periodic positioning pilot signals to the service cell in the middle time slot of the two adjacent periodic positioning pilot signals.
That is, in the present application, all terminals in the serving cell may receive the periodic positioning pilot signal issued by the base station, and only the terminal requiring high-precision positioning may receive the aperiodic positioning pilot signal. Therefore, the positioning requirement of the terminal with the high-precision positioning requirement can be met on the premise that the positioning requirement of the terminal with the non-high-precision positioning requirement is not influenced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for transmitting a positioning pilot according to an embodiment of the present application;
fig. 2 is a diagram of an example of a lower transmission of a periodic positioning pilot according to an embodiment of the present disclosure;
fig. 3 is a diagram of an example of an aperiodic positioning pilot disclosed in an embodiment of the present application;
fig. 4 is an exemplary diagram of symbol positions in transmission opportunities of periodic positioning pilots and non-periodic positioning pilots disclosed in the embodiment of the present application;
fig. 5 is an exemplary diagram illustrating different symbol positions in transmission opportunities for periodic positioning pilots and non-periodic positioning pilots, disclosed in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a positioning pilot sending apparatus according to an embodiment of the present application;
FIG. 7 is a schematic structural diagram of an apparatus disclosed in an embodiment of the present application;
fig. 8 is a schematic structural diagram of another apparatus for sending a positioning pilot according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of another apparatus provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
Fig. 1 is a sending method for a positioning pilot according to an embodiment of the present application, which may include the following steps:
s101, the base station sends a first high-level signaling to all terminals of the service cell.
In this embodiment, the first higher layer signaling includes parameter information for periodically issuing the positioning pilot by the base station. The issued parameter information includes a symbol position of a sending opportunity of the base station periodic positioning pilot frequency, and for convenience of description, the symbol position of the sending opportunity of the base station periodic positioning pilot frequency is referred to as a first symbol position.
In this embodiment, the issuing of the parameter information may include: a slot offset (DL-PRS-ResourceSetSlotOffset) of a resource set corresponding to a TRP configuration with respect to SFN slot 0, a symbol offset (DL-PRS-ResourceSymbolOffset), a number of symbols of a DL PRS resource within one slot (DL-PRS-NumSymbols), a number of repetitions of a DL PRS resource in a DL PRS resource set (DL-PRS-ResourceRepetitionFactor), a slot offset (DL-PRS-resourcetiingagap) indicating a DL PRS resource set in two retransmitted DL PRS resources, and the like.
Wherein the offset slot indicates: and the time slot of the first downlink PRS resource in the downlink PRS resource set. Symbol position indication: and the symbol index of the first downlink PRS resource in the downlink PRS resource set. The value of DL-PRS-resource repetition factor may be any one of 1, 2, 4, 6, 8, 16, and 32. The DL-PRS-resourcetitimegap is provided only if the value of DL-PRS-ResourceRepetitionFactor is greater than 1, and may have any one of values 1, 2, 4, 8, 16, and 32.
In this embodiment, the first higher layer signaling may be RRC signaling, but in practice, the first higher layer signaling may also be signaling in other forms, and this embodiment limits the specific form of the first higher layer signaling.
S102, the terminal in the service cell receives the first high-level signaling.
In this step, all terminals in the serving cell may receive the first higher layer signaling.
S103, the terminal in the service cell analyzes the issued parameter information in the first high-level signaling.
In this embodiment, the delivered parameter information in the first higher layer signaling includes a symbol position of a transmission opportunity of the base station delivering the periodic positioning pilot.
S104, the base station sends a second high-level signaling to the target terminal in the service cell.
In this embodiment, the manner for the base station to acquire which terminals in the serving cell are the target terminals may include: after the terminal is accessed, a signaling is sent to the base station, and the signaling is used for indicating whether the terminal is a target terminal, namely whether the terminal is a terminal requiring high-precision positioning. Of course, in practice, the base station may also acquire which terminals in the serving cell are the target terminals in other manners, and this embodiment does not limit the specific acquisition manner.
In this embodiment, the first higher layer signaling may be RRC signaling, but in practice, the first higher layer signaling may also be signaling in other forms, and this embodiment limits the specific form of the first higher layer signaling.
In this embodiment, the second higher layer signaling includes parameter information for issuing aperiodic positioning pilot by the base station. For convenience of description, the present embodiment refers to the symbol position of the sending opportunity where the base station issues the aperiodic positioning pilot as the second symbol position. Of course, in practice, the delivered parameter information may also include other information besides the second symbol position, and the specific content of the delivered parameter information is not limited in this embodiment.
S105, the target terminal receives the second high-level signaling.
S106, the target terminal analyzes the issued parameter information in the second high-level signaling.
And S107, the base station sends periodic positioning pilot signals to the service cell every preset time.
In this embodiment, the base station issues the positioning pilot signal according to a certain period, and for convenience of description, the positioning pilot signal issued according to a preset period is referred to as a periodic positioning pilot signal.
In the present embodiment, for convenience of understanding, a lower example diagram of the periodic positioning pilot signal shown in fig. 2 is given. The parameter information configured by the base station to the downlink positioning pilot frequency of the terminal comprises: symbol positions, slot offsets indicating that the set of DL PRS resources are in two retransmission DL PRS resources, and repetition times indicating that the DL PRS resources are in the set of DL PRS resources, etc. Taking the PRS resource set period value as 4ms as an example, as can be seen from fig. 2, a periodic positioning pilot signal is issued every 4ms according to parameters configured by a base station, that is, there is a periodic transmission opportunity of a downlink positioning pilot signal every 4 ms.
S108, the base station issues the non-periodic positioning pilot signal in the middle time slot of the first positioning pilot signal in two adjacent times.
In this embodiment, the base station issues the first positioning pilot signal to the serving cell every preset duration, that is, periodically issues the first positioning pilot signal.
Optionally, in this embodiment, in the time slot between the issue time slots of the first positioning pilot signals issued twice, the aperiodic positioning pilot signals may be issued uniformly, that is, the issue time of the aperiodic positioning pilot signals is distributed uniformly within the sending interval of the periodic positioning pilot signals. Certainly, the uniform issuing of the aperiodic positioning pilot signal is only a specific implementation manner, and in practice, other following manners may be adopted besides the uniform issuing, and the specific issuing manner is not limited in this embodiment.
In this embodiment, in order to visually demonstrate the issuing process of the aperiodic positioning pilot, a schematic diagram shown in fig. 3 is given. It can be seen from fig. 3 that the transmission occasions of the aperiodic positioning pilot are located between the transmission occasions of the adjacent periodic positioning pilots.
S109, the terminal receives the periodic positioning pilot signal sent by the base station according to the configuration parameter in the first high-level signaling.
In practice, the specific implementation manner of this step is the prior art, and is not described herein again.
S110, the target terminal receives the non-periodic positioning pilot signal sent by the base station according to the configuration parameter in the second high-level signaling.
In this step, the target terminal receives the aperiodic positioning pilot signal according to the configuration parameters in the second high-level signaling.
In this embodiment, the symbol position of each transmission opportunity of the aperiodic positioning pilot indicated by the second higher layer signaling is the same as or different from the symbol position of each transmission opportunity of the periodic positioning pilot indicated by the first higher layer signaling.
For visual demonstration, the present embodiment respectively gives schematic diagrams of the same symbol position and a different symbol position, where the schematic diagram of the same symbol position is shown in fig. 4, and the schematic diagram of the different symbol position is shown in fig. 5. It can be seen from fig. 4 that the symbol positions are the same, and the symbol positions in fig. 5 are different.
Fig. 6 is a sending apparatus of a positioning pilot according to an embodiment of the present application, which is applied to a base station, and includes: a first signaling down-sending module 601, a second signaling down-sending module 602, a first signal down-sending module 603 and a second signal down-sending module 604, wherein,
a first signaling issuing module 601, configured to issue a first high-level signaling to all terminals in a serving cell; the first high-level signaling comprises issuing parameter information of the base station issuing periodic positioning pilot frequency;
a second signaling issuing module 602, configured to issue a second high-level signaling only to the target terminal of the serving cell; the target terminal is a terminal with high-precision positioning requirement in a service cell; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station;
a first signal issuing module 603, configured to issue a periodic positioning pilot signal to the serving cell every preset duration;
the second signal issuing module 604 is configured to issue at least an aperiodic positioning pilot signal to the serving cell in a middle time slot of two adjacent issued periodic positioning pilot signals.
Optionally, the second signal issuing module 604 is configured to issue an aperiodic positioning pilot signal in a middle time slot of two adjacent times of issuing periodic positioning pilot signals, and includes:
a second signal issuing module 604, configured to issue an aperiodic positioning pilot signal in a middle time slot of the two adjacent issued periodic positioning pilot signals; the sending time of the non-periodic positioning pilot frequency signal is uniformly distributed within the sending interval time of the periodic positioning pilot frequency.
Optionally, the issued parameter information included in the first high-level signaling includes a first symbol position; the first symbol position is a symbol position of a sending opportunity of the base station issuing the periodic positioning pilot frequency; the issued parameter information contained in the second high-level signaling comprises a second symbol position; the second symbol position is a symbol position of a sending opportunity of the non-periodic positioning pilot frequency issued by the base station; wherein the first symbol position is the same as or different from the second symbol position.
Optionally, the second signal issuing module 604 is configured to issue an aperiodic positioning pilot signal at least to the serving cell in a middle time slot of two adjacent times of issuing periodic positioning pilot signals, and includes:
the second signal issuing module 604 is specifically configured to issue an aperiodic positioning pilot signal to the serving cell and a neighboring cell of the serving cell in a middle time slot of two adjacent issued periodic positioning pilot signals.
The sending device of the positioning pilot frequency includes a processor and a memory, the first signaling issuing module 601, the second signaling issuing module 602, the first signal issuing module 603, the second signal issuing module 604, and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more than one, and the problem of positioning accuracy required by a terminal with periodic downlink positioning pilot frequency which cannot meet the requirement of high-accuracy positioning is solved by adjusting kernel parameters.
An embodiment of the present invention provides a storage medium, on which a program is stored, which, when executed by a processor, implements the method for transmitting the positioning pilot.
The embodiment of the invention provides a processor, which is used for running a program, wherein the positioning pilot frequency sending method is executed when the program runs.
An embodiment of the present invention provides an apparatus, as shown in fig. 7, the apparatus includes at least one processor, and at least one memory and a bus connected to the processor; the processor and the memory complete mutual communication through a bus; the processor is used for calling the program instructions in the memory to execute the identification method of the peer. The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device:
sending a first high-level signaling to all terminals of a service cell; the first high-level signaling comprises issuing parameter information of the base station issuing periodic positioning pilot frequency;
only sending a second high-level signaling to a target terminal of the service cell; the target terminal is a terminal with high-precision positioning requirement in a service cell; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station;
sending periodic positioning pilot signals to the serving cell every preset time length;
and at least issuing non-periodic positioning pilot signals to the service cell in the middle time slot of two adjacent issuing periodic positioning pilot signals.
Fig. 8 is a sending apparatus of a positioning pilot according to an embodiment of the present application, which is applied to a terminal, and includes: a first execution module 801 and a second execution module 802, wherein,
a first executing module 801, configured to receive a first high-level signaling and a second high-level signaling when the terminal is a target terminal; the target terminal is a terminal with high-precision positioning requirement; the first high-level signaling comprises issuing parameter information of a base station issuing periodic positioning pilot frequency; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station; receiving a periodic positioning pilot signal according to the issued parameter information contained in the first high-level signaling; receiving an aperiodic positioning pilot signal according to the issued parameter information contained in the second high-level signaling;
a second executing module 802, configured to receive the first high-level signaling when the terminal is a non-target terminal, and receive a periodic positioning pilot signal according to parameter information sent in the first high-level signaling.
Optionally, the apparatus may further include: a third executing module, configured to send a signaling to the base station before the second executing module 802 receives the first high-level signaling and the second high-level signaling when the terminal is the target terminal; the signaling is used for indicating whether the terminal is a terminal with high-precision positioning requirement or not.
The sending device of the positioning pilot frequency includes a processor and a memory, the first execution module 801 and the second execution module 802, etc. are both stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more than one, and the problem of positioning accuracy required by a terminal with periodic downlink positioning pilot frequency which cannot meet the requirement of high-accuracy positioning is solved by adjusting kernel parameters.
An embodiment of the present invention provides a storage medium, on which a program is stored, which, when executed by a processor, implements the method for transmitting the positioning pilot.
The embodiment of the invention provides a processor, which is used for running a program, wherein the positioning pilot frequency sending method is executed when the program runs.
An embodiment of the present invention provides an apparatus, as shown in fig. 9, the apparatus includes at least one processor, and at least one memory and a bus connected to the processor; the processor and the memory complete mutual communication through a bus; the processor is used for calling the program instructions in the memory to execute the identification method of the peer. The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device:
receiving a first high-level signaling and a second high-level signaling under the condition that the terminal is a target terminal; the target terminal is a terminal with high-precision positioning requirement; the first high-level signaling comprises issuing parameter information of a base station issuing periodic positioning pilot frequency; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station; receiving a periodic positioning pilot signal according to the issued parameter information contained in the first high-level signaling; receiving an aperiodic positioning pilot signal according to the issued parameter information contained in the second high-level signaling;
and under the condition that the terminal is a non-target terminal, receiving the first high-level signaling, and receiving a periodic positioning pilot signal according to the issued parameter information in the first high-level signaling.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a device includes one or more processors (CPUs), memory, and a bus. The device may also include input/output interfaces, network interfaces, and the like.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip. The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transmyedia) such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
The functions described in the method of the embodiment of the present application, if implemented in the form of software functional units and sold or used as independent products, may be stored in a storage medium readable by a computing device. Based on such understanding, part of the contribution to the prior art of the embodiments of the present application or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including several instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Features described in the embodiments of the present specification may be replaced with or combined with each other, each embodiment is described with a focus on differences from other embodiments, and the same or similar portions among the embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for sending a positioning pilot is applied to a base station, and comprises the following steps:
sending a first high-level signaling to all terminals of a service cell; the first high-level signaling comprises issuing parameter information of the base station issuing periodic positioning pilot frequency;
only sending a second high-level signaling to a target terminal of the service cell; the target terminal is a terminal with high-precision positioning requirement in a service cell; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station;
sending periodic positioning pilot signals to the serving cell every preset time length;
and at least issuing non-periodic positioning pilot signals to the service cell in the middle time slot of two adjacent issuing periodic positioning pilot signals.
2. The method of claim 1, wherein issuing the aperiodic positioning pilot signal in the middle time slot of two adjacent issuing periodic positioning pilot signals comprises:
issuing non-periodic positioning pilot signals in the middle time slot of the two adjacent issued periodic positioning pilot signals; the sending time of the non-periodic positioning pilot frequency signal is uniformly distributed within the sending interval time of the periodic positioning pilot frequency.
3. The method of claim 1, wherein the first higher layer signaling includes a down parameter information including a first symbol position; the first symbol position is a symbol position of a sending opportunity of the base station issuing the periodic positioning pilot frequency; the issued parameter information contained in the second high-level signaling comprises a second symbol position; the second symbol position is a symbol position of a sending opportunity of the non-periodic positioning pilot frequency issued by the base station;
wherein the first symbol position is the same as or different from the second symbol position.
4. The method as claimed in claim 1, wherein the issuing the aperiodic positioning pilot signal to at least the serving cell in the middle time slot of two adjacent issuing periodic positioning pilot signals comprises:
and issuing non-periodic positioning pilot signals to the service cell and the adjacent cells of the service cell in the middle time slot of the two adjacent issued periodic positioning pilot signals.
5. A method for sending a positioning pilot is applied to a terminal, and comprises the following steps:
receiving a first high-level signaling and a second high-level signaling under the condition that the terminal is a target terminal; the target terminal is a terminal with high-precision positioning requirement; the first high-level signaling comprises issuing parameter information of a base station issuing periodic positioning pilot frequency; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station; receiving a periodic positioning pilot signal according to the issued parameter information contained in the first high-level signaling; receiving an aperiodic positioning pilot signal according to the issued parameter information contained in the second high-level signaling;
and under the condition that the terminal is a non-target terminal, receiving the first high-level signaling, and receiving a periodic positioning pilot signal according to the issued parameter information in the first high-level signaling.
6. The method of claim 5, wherein before receiving the first higher layer signaling and the second higher layer signaling in case the terminal is a target terminal, further comprising:
sending signaling to the base station; the signaling is used for indicating whether the terminal is a terminal with high-precision positioning requirement or not.
7. A positioning pilot transmitting apparatus, for use in a base station, comprising:
the first signaling issuing module is used for issuing a first high-level signaling to all terminals of a service cell; the first high-level signaling comprises issuing parameter information of the base station issuing periodic positioning pilot frequency;
a second signaling issuing module, configured to issue a second high-level signaling only to a target terminal of the serving cell; the target terminal is a terminal with high-precision positioning requirement in a service cell; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station;
the first signal issuing module is used for issuing periodic positioning pilot signals to the service cell at intervals of preset duration;
and the second signal issuing module is used for issuing non-periodic positioning pilot signals to the service cell at least in the middle time slot of the periodic positioning pilot signals issued twice adjacently.
8. A sending apparatus of a positioning pilot, applied to a terminal, comprising:
a first execution module, configured to receive a first high-level signaling and a second high-level signaling when the terminal is a target terminal; the target terminal is a terminal with high-precision positioning requirement; the first high-level signaling comprises issuing parameter information of a base station issuing periodic positioning pilot frequency; the second high-level signaling comprises the issued parameter information of the non-periodic positioning pilot frequency issued by the base station; receiving a periodic positioning pilot signal according to the issued parameter information contained in the first high-level signaling; receiving an aperiodic positioning pilot signal according to the issued parameter information contained in the second high-level signaling;
and the second execution module is used for receiving the first high-level signaling under the condition that the terminal is a non-target terminal, and receiving the periodic positioning pilot signal according to the issued parameter information in the first high-level signaling.
9. An apparatus comprising at least one processor, and at least one memory, bus connected to the processor; the processor and the memory complete mutual communication through the bus; the processor is configured to call the program instructions in the memory to execute the method for transmitting the positioning pilot according to any one of claims 1 to 4.
10. An apparatus comprising at least one processor, and at least one memory, bus connected to the processor; the processor and the memory complete mutual communication through the bus; the processor is configured to invoke program instructions in the memory to perform the method of transmitting a positioning pilot according to claim 5.
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