CN111479213B - Evaluation method and device for position recommendation - Google Patents

Evaluation method and device for position recommendation Download PDF

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Publication number
CN111479213B
CN111479213B CN201910064998.4A CN201910064998A CN111479213B CN 111479213 B CN111479213 B CN 111479213B CN 201910064998 A CN201910064998 A CN 201910064998A CN 111479213 B CN111479213 B CN 111479213B
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China
Prior art keywords
terminal
information
cell
lte
location
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CN201910064998.4A
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CN111479213A (en
Inventor
徐海博
王洪跃
王键
任少丽
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • H04B17/327Received signal code power [RSCP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/382Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • H04W48/04Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The application provides an evaluation method and device for position recommendation, wherein the method comprises the following steps of; the method comprises the steps that terminal equipment searches an NR cell at a first position, wherein the terminal equipment is located at the first position, and a cell where the first position resides is a Long Term Evolution (LTE) cell; the terminal device determines an evaluation result of the terminal device at the first location according to at least one of first information, second information and third information, wherein the first information is used for indicating the measurement quantity of the LTE cell where the terminal device is resided, the second information is used for indicating whether LTE and NR dual connection is available at the first location, and the third information is used for indicating the measurement quantity of the NR cell searched at the first location by the terminal device. The evaluation method for position recommendation in the embodiment of the application can recommend the 5G best position (5G best position) for the user, is beneficial to the user to enjoy the best network service in time, and improves the user experience.

Description

Evaluation method and device for position recommendation
Technical Field
The present application relates to the field of communications, and more particularly, to an evaluation method and apparatus for location recommendation.
Background
For a 5G network deployed in a Long Term Evolution (LTE) and new radio, NR (new radio, NR) networking mode, system information of an LTE cell may carry indication information to indicate that the LTE cell supports an EN-DC networking mode, or the LTE cell may provide a 5G service for a terminal device in an EN-DC networking mode.
After the terminal device supporting the 5G function resides in the LTE cell, the NR cell is not measured, which cannot ensure that the NR cell covers the location where the terminal device is placed, so that the location user in the terminal device mode cannot enjoy the service of the 5G network, and the user experience is poor.
Disclosure of Invention
The application provides an evaluation method and device for position recommendation, which are beneficial to improving user experience.
In a first aspect, an evaluation method for location recommendation is provided, where the method is applied to a terminal device, and the method includes: the terminal equipment searches an NR cell at a first position, wherein the terminal equipment is positioned at the first position, and the cell where the first position resides is a Long Term Evolution (LTE) cell; the terminal device determines an evaluation result of the terminal device at the first position according to at least one of first information, second information and third information, wherein the first information is used for indicating the measurement quantity of the LTE cell where the terminal device is resided, the second information is used for indicating whether LTE and NR dual connection is available at the first position of the terminal device, the third information is used for indicating the measurement quantity of the NR cell searched at the first position by the terminal device, and the evaluation result at least relates to the LTE signal strength and the NR signal strength of the terminal at the first position.
According to the evaluation method for location recommendation in the embodiment of the application, when the terminal device resides in the LTE cell at the first location, the terminal device is facilitated to determine the evaluation result of the first location by scanning the LTE cell and the NR cell at the first location and determining whether the first location supports dual connection of LTE and NR.
In some possible implementations, the method further includes:
the terminal equipment receives system information from an access network, wherein the system information comprises the first indication information.
In some possible implementations, the method includes:
the terminal equipment receives second indication information from the core network.
In some possible implementation manners, the second indication information is issued to the terminal device by the core network in the attach process.
In some possible implementations, the second indication information is carried in an attach accept (attach accept) message.
In some possible implementations, the evaluation result is related to whether the LTE signal quality, the NR signal quality, or the EN-DC correlation is supported at the first location.
With reference to the first aspect, in some possible implementations of the first aspect, the method further includes: the terminal equipment prompts the evaluation result of the first position.
According to the evaluation method for position recommendation in the embodiment of the application, the evaluation result is displayed to the user, so that the user can conveniently know the evaluation result of the current position of the terminal device in time, such as the comprehensive score or recommendation indication.
With reference to the first aspect, in some possible implementations of the first aspect, when the first location includes multiple locations, the determining an evaluation result of the terminal device at the first location includes: the terminal equipment determines an evaluation result of each position in the plurality of positions to obtain a plurality of evaluation results; the method further comprises the following steps: the terminal equipment prompts each position and an evaluation result corresponding to each position.
According to the evaluation method for location recommendation in the embodiment of the application, the terminal device can evaluate a plurality of locations, and remind the user of each location and the evaluation result corresponding to each location, such as the comprehensive score or the recommendation index, so that the user can select the optimal location from the plurality of locations, for example, the location with the highest comprehensive score is selected to place the terminal device, and the user can enjoy the best network experience in time.
With reference to the first aspect, in some possible implementation manners of the first aspect, the terminal device prompts the evaluation result of the first location through one or more of scores displayed on a display screen, scores prompted by voice, and signal lamp display intensity.
With reference to the first aspect, in some possible implementations of the first aspect, before determining the evaluation result of the first location, the method further includes: the terminal device determines the second information according to first indication information and second indication information, wherein the first indication information is upper layer indication information carried in system information of the LTE cell, and the second indication information is used for indicating whether the network device limits the terminal device to use LTE and NR dual connectivity.
With reference to the first aspect, in some possible implementation manners of the first aspect, the determining, by the terminal device, the second information according to the first indication information and the second indication information includes: the system information of the LTE cell includes a public land mobile network PLMN information list, and first PLMN information in the PLMN information list includes the first indication information, and the second indication information indicates that the network device does not restrict the terminal device from using LTE and NR dual connectivity, the terminal device sets the second information to a first value, and the first PLMN information is information corresponding to a PLMN selected by the terminal device; when the system information of the LTE cell does not include a public land mobile network PLMN information list, or when the system information of the LTE cell carries the public land mobile network PLMN information list but the first PLMN information does not include the first indication information, or when the second indication information indicates that the network device limits the terminal device to use LTE and NR dual connectivity, the terminal device sets the second information to a second value.
With reference to the first aspect, in some possible implementations of the first aspect, the searching for the NR cell at the first location includes: the terminal equipment determines an NR frequency band needing to be scanned; the terminal equipment searches an NR cell on the NR frequency band; alternatively, the first and second electrodes may be,
the searching for the NR cell at the first location includes: the terminal equipment determines an NR frequency band needing to be scanned and a carrier frequency band needing to be scanned on the NR frequency band; and the terminal equipment searches for the NR cell on the NR frequency band and the carrier frequency point.
With reference to the first aspect, in some possible implementation manners of the first aspect, the searching, by the terminal device, for an NR cell at a first location includes: the terminal device searches for an NR cell at the first location according to predefined rules.
With reference to the first aspect, in some possible implementations of the first aspect, the searching, by the terminal device, for the NR cell at the first location according to a predefined rule includes: and stopping the search for the NR cell when the terminal device searches L cells with the metric quantity being greater than or equal to a first predefined threshold, wherein L is a positive integer greater than or equal to 1.
With reference to the first aspect, in some possible implementation manners of the first aspect, the third information is an average value of the metric quantities of the L cells, or the third information is an optimal metric quantity of the metric quantities of the L cells.
With reference to the first aspect, in some possible implementation manners of the first aspect, the third information is a metric of the first cell, and the first cell is a cell with an optimal metric in cells searched by the terminal device.
With reference to the first aspect, in some possible implementations of the first aspect, the NR frequency band is one or more of: all NR frequency bands which can be supported by the terminal equipment; all NR frequency bands supported by the PLMN selected by the terminal equipment; and the preset NR frequency band needing to be scanned in the terminal equipment.
In a second aspect, an apparatus is provided for performing the method in the first aspect and any possible implementation manner of the first aspect. The apparatus may exemplarily include a unit or a module for performing the method in the first aspect and any possible implementation manner of the first aspect.
In a third aspect, an apparatus is provided, which may be the terminal device in the above method design, or a chip disposed in the terminal device. The device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the terminal device in the first aspect or any one of the possible implementations of the first aspect.
Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.
When the apparatus is a terminal device, the communication interface may be a transceiver, or an input/output interface.
When the apparatus is a chip configured in a terminal device, the communication interface may be an input/output interface.
Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.
In a fourth aspect, a program is provided, which, when being executed by a processor, is adapted to carry out the method of the first aspect.
In a fifth aspect, a program product is provided, the program product comprising: program code for causing an apparatus (e.g. a terminal device) to perform the method of any of the above first aspect and its possible embodiments, when the program code is run by a communication unit, a processing unit or a transceiver, a processor of the apparatus.
In a sixth aspect, there is provided a computer readable medium storing a program for causing an apparatus (e.g., a terminal device) to perform the method of any one of the above first aspect and its possible embodiments.
Drawings
Fig. 1 is a schematic diagram of a networking manner provided in an embodiment of the present application.
Fig. 2 is a schematic diagram of another networking manner provided in the embodiment of the present application.
Fig. 3 is a schematic diagram of another networking manner provided in the embodiment of the present application.
Fig. 4 is a schematic diagram of another networking manner provided in the embodiment of the present application.
Fig. 5 is a schematic diagram of another networking manner provided in the embodiment of the present application.
Fig. 6 is a schematic flow chart of an evaluation method for location recommendation provided in an embodiment of the present application.
Fig. 7 is a schematic diagram of a set of GUIs provided in embodiments of the present application.
Fig. 8 is a schematic diagram of a display situation of a signal lamp on a terminal device according to an embodiment of the present application.
Fig. 9 is a schematic diagram of another GUI provided in an embodiment of the present application.
Fig. 10 is another schematic flow chart of an evaluation method for location recommendation provided in an embodiment of the present application.
Fig. 11 is another schematic flow chart of an evaluation method for location recommendation provided in an embodiment of the present application.
Fig. 12 is another schematic flow chart of an evaluation method for location recommendation provided in an embodiment of the present application.
Fig. 13 is another schematic flow chart of an evaluation method for location recommendation provided in an embodiment of the present application.
Fig. 14 is a schematic diagram of an evaluation device for recommending a location according to an embodiment of the present application.
Fig. 15 is a schematic diagram of a terminal device provided in an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a future fifth generation (5th generation, 5G) system, or a New Radio (NR).
Terminal equipment in the embodiments of the present application may refer to user equipment, access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user devices. The terminal device may also be a Customer Premises Equipment (CPE), a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.
The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be an evolved NodeB (eNB or eNodeB) in an LTE system, and may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like, and the embodiment of the present application is not limited.
The network device may also be a 4G core network device or a 5G core network device.
In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.
In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.
Fig. 1 to fig. 5 are schematic diagrams illustrating several networking manners to which the technical solution of the embodiment of the present application is applied.
Fig. 1 shows a schematic diagram of an NR independent (SA) networking approach in which NR base stations (e.g., gnbs) independently operate and are connected to a 5G Core network (5G Core, 5 GC). The network architectures of the control plane and the user plane are respectively shown in (a) and (b) of fig. 1, where a 5G core network control plane Node (5GC control plane Node, 5GC CP Node) is connected to an NR base station through an NG-C interface, and a 5G core network user plane Node (5GC user plane Node, 5GC UP Node) is connected to the NR base station through an NG-U interface.
Fig. 2 shows a schematic diagram of an LTE-NR dual connectivity (EN-DC) networking manner in which an LTE base station (e.g., eNB) is a master node (master node), an NR base station (e.g., gNB) is a slave node (secondary node), and the master node is connected to a 4G core network (EPC). Network architectures of control plane connection and user plane connection are respectively shown in (a) and (b) of fig. 2, where a mobility management entity (mobility management entity) is connected to an LTE base station through an S1-MME interface, a serving gateway (S-GW) is connected to the LTE base station through an S1-U interface, and the S-GW may be connected to an NR base station through an S1-U interface.
Fig. 3 shows a schematic diagram of a next generation LTE-NR dual connectivity (NG EN-DC) networking manner, which uses an evolved LTE base station (e.g., NG-eNB) as a primary node, an NR base station (e.g., gNB) as a secondary node, and the primary node base station is connected to a 5G core network. The network architecture of the control plane connection and the user plane connection is respectively shown as (a) and (b) in fig. 3, wherein, the 5GC CP Node is connected with the evolved LTE base station through an NG-C interface, the 5GC UP Node is connected with the evolved LTE base station through an NG-U interface, and the 5GC UP Node can also be connected with the NR base station through an NG-U interface.
Fig. 4 shows a schematic diagram of an NR-LTE dual connectivity (NE-DC) networking approach that uses an NR base station (e.g., a gNB) as a primary node, an evolved LTE base station (e.g., an Ng-eNB) as a secondary node, and the primary node base station is connected to a 5G core network. The network architecture of the control plane connection and the user plane connection is respectively shown as (a) and (b) in fig. 4, wherein, the 5GC CP Node is connected with the NR base station through an NG-C interface, the 5GC UP Node is connected with the NR base station through an NG-U interface, and the 5GC UP Node can also be connected with an evolved LTE base station through an NG-U interface.
Fig. 5 shows a schematic diagram of an NR-dual connectivity (NR-DC) networking manner, in which one NR base station is a primary node, another NR base station is a secondary node, and the primary node base station is connected to a 5G core network. The network architectures of the control plane connection and the user plane connection are respectively shown in (a) and (b) of fig. 5, in which the 5GC CP Node is connected to the NR base station through an NG-C interface, and the 5GC UP Node is connected to the NR base station through an NG-U interface.
The application scenarios include, but are not limited to, the following: networks supporting 4G, e.g., networks with only LTE cells deployed; a network supporting 5G, for example, a network in which only NR cells are deployed and a system architecture supporting the above-mentioned NR SA networking or NR DC networking; a network supporting both 4G and 5G, for example, a network deploying both LTE cells and NR cells, and a system architecture supporting the above-mentioned N-DC networking, or a system architecture of NG EN-DC networking, or a system architecture of NE-DC networking. In addition, the application scene comprises a network deployed based on sub-6GHz and a network deployed based on above-6GHz millimeter waves.
When the terminal device is in the network architecture of the above several networking modes, and a placement position is selected for the terminal device, in order to realize that the best service experience can be provided for the user at the placement position:
on one hand, in a network with NR cell deployment, the placement position of a terminal device supporting 5G needs to be determined in consideration of the signal coverage condition of the NR cell; further, in the case where there is coverage of a plurality of NR cells, it is necessary to decide the placement position of the terminal device supporting 5G in consideration of the signal strength of the NR cell.
For example, in a 5G network deployed in an EN-DC networking manner, a terminal device supporting both a 5G function and a 4G function may only select an LTE cell for camping. After camping on the LTE cell, if the SIB2 of the LTE cell broadcasts the upper layer indication information (upper layer indication), the terminal device displays the 5G icon. However, if the location of the terminal device is determined only according to the 5G icon displayed by the terminal device, since the terminal device does not measure the NR cell, there is no way to actually ensure that the location where the terminal is located is covered by the NR cell signal, which may result in that the user cannot enjoy the service of the 5G network at the location of the terminal device. Therefore, the placement position cannot be guaranteed to bring the best experience to the user.
On the other hand, in a network where no NR cell is deployed, or in a case where there is a NR cell deployed but there is no NR cell coverage, the placement position of a terminal device supporting 5G also needs to be decided in consideration of the signal strength of an LTE cell. However, the prior art cannot select the placement position according to the signal coverage of the NR cell, the signal strength of the NR cell, or the signal strength of the LTE cell.
For example, in a 5G network deployed in an NR SA independent networking manner, a supported 5G function may select an NR cell to camp on. After camping on the NR cell, the terminal equipment displays a 5G signal. If the placement position of the terminal device is determined only based on the 5G signal displayed by the terminal device, the best 5G signal of the terminal placement position cannot be guaranteed, which may result in that the user cannot enjoy better services of the 5G network at the placement position of the terminal device. The evaluation method for the position recommendation provided by the embodiment of the application is beneficial to ensuring that the position of the terminal device brings the best experience for the user. The evaluation method for position recommendation in the present application may also be referred to as a 5G best position (5G best position) algorithm.
Fig. 6 shows a schematic flowchart of a measurement method 100 provided in an embodiment of the present application, where the method 100 may be applied to a case where a terminal device resides in an LTE cell, that is, a primary mode of the terminal device is LTE. The corresponding network scenario and system may be: a 4G-capable network; while supporting both 4G and 5G networks. The corresponding system architecture may be: a system architecture supporting an EN-DC networking mode; or a system architecture supporting NG EN-DC networking.
As shown in fig. 6, when the method 100 includes:
s110, the terminal device searches for an NR cell at a first location, where the terminal device is located at the first location and a cell where the terminal device resides at the first location is a long term evolution LTE cell.
Optionally, the searching, by the terminal device, a first set of NR cells at the first location includes:
the terminal device scans the NR frequency band and searches the NR cell on the carrier frequency point on each scanned NR frequency band.
Optionally, before the terminal device searches the first NR cell set, the method further includes:
the terminal device determines the NR frequency bands to be scanned.
Optionally, the NR frequency bands to be scanned by the terminal device include, but are not limited to, one or more of the following:
(1) all NR frequency bands;
(2) all NR frequency bands supported by the terminal equipment capability;
(3) all NR frequency bands supported by the selected PLMN on the LTE cell where the terminal equipment resides currently;
(4) all NR frequency bands which are supported by the selected PLMN on the LTE cell where the terminal equipment resides currently and can be supported by the capability of the terminal equipment;
(5) m NR frequency bands which are supported by a selected PLMN on an LTE cell where the terminal equipment resides currently and can be supported by the terminal equipment are in all NR frequency bands, wherein M is a positive integer greater than or equal to 1;
(6) all NR bands supported by an operator to which a Subscriber Identity Module (SIM) card of a terminal device belongs. If two SIM cards are inserted into the terminal device (the two SIM cards may be Nano SIM cards or eSIM cards), the terminal device may scan NR frequency bands supported by an operator to which each SIM card belongs, or the terminal device may scan NR frequency bands supported by an operator to which a Nano SIM card belongs, or the terminal device may scan NR frequency bands supported by an operator to which an eSIM card belongs;
(7) and the preset frequency band needing to be scanned in the terminal equipment.
Optionally, after the terminal device determines an NR frequency band to be scanned, the method 100 further includes;
the terminal equipment determines the carrier frequency point needing to search the NR cell.
Optionally, the carrier frequency point for the terminal device to perform cell search includes, but is not limited to, one or more of the following:
(1) all carrier frequency points on each scanning frequency band;
(2) on each scanning frequency band, the carrier frequency points which can be supported by the terminal equipment capacity;
(3) on each scanned frequency band, all carrier frequency points supported by the selected PLMN on the LTE cell where the terminal equipment currently resides on the frequency band;
(4) on each scanned frequency band, the selected PLMN in the LTE cell where the terminal equipment resides currently can support on the frequency band, and simultaneously, the terminal equipment capability on the frequency band can also support all carrier frequency points;
(5) on each scanned frequency band, a PLMN selected on an LTE cell where the terminal equipment resides currently can be supported on the frequency band, and N carrier frequency points in all carrier frequency points which can be supported by the terminal equipment capacity on the frequency band are simultaneously, wherein N is a positive integer greater than or equal to 1;
(6) and in each scanned frequency band, all carrier frequency points supported by an operator to which the SIM card of the terminal equipment belongs in the frequency band. If two SIM cards (the two SIM cards may be Nano SIM cards or eSIM cards) are inserted into the terminal device, the terminal device may perform cell search on carrier frequency points supported by an operator to which each SIM card belongs in each scanned frequency band; or, the terminal device may perform cell search on carrier frequency points supported by an operator to which the Nano SIM card belongs; or, the terminal device may perform cell search on a carrier frequency band supported by an operator to which the eSIM card belongs;
(7) and the carrier frequency point is preset in the terminal equipment.
Alternatively, the terminal device may search for an NR cell according to a predefined rule.
Optionally, the predefined rules include, but are not limited to, the following:
(1) searching all NR cells on each carrier frequency point for cell search, and stopping the cell search on the carrier frequency point until all NR Physical Cell Identifiers (PCIs) of the carrier frequency point are traversed once;
(2) and each carrier frequency point for carrying out cell search searches L NR cells with the measurement quantity higher than a predefined threshold. Stopping the cell search of the carrier frequency point after L NR cells with the measurement quantity higher than a predefined threshold are searched on the carrier frequency point, wherein L is a positive integer greater than or equal to 1;
(3) and searching L NR cells with the measurement quantity higher than a predefined threshold at each carrier frequency point for carrying out cell search. And stopping the cell search of any carrier frequency point on the frequency band to which the carrier frequency point belongs after L NR cells with the measurement quantity higher than a predefined threshold are searched on the carrier frequency point. L is a positive integer greater than or equal to 1;
(4) and searching L NR cells with the measurement quantity higher than a predefined threshold at each carrier frequency point for carrying out cell search. And stopping cell search of any carrier frequency point of any frequency band after L NR cells with the measurement quantity higher than a predefined threshold are searched on the carrier frequency point, wherein L is a positive integer greater than or equal to 1.
And if the terminal equipment does not search the L NR cells meeting the threshold condition after searching all the cells, the number of the actually searched NR cells is taken as the standard.
It should be understood that the determination of the scanning frequency band, the determination of the carrier frequency point for performing cell search, and the determination of the cell to be searched may be any combination of the above implementation manners.
And S120, the terminal device determines an evaluation result of the terminal device at the first position according to at least one of first information, second information and third information, wherein the first information is used for indicating the measurement quantity of the LTE cell where the terminal device resides, the second information is used for indicating whether LTE and NR dual connection is available at the first position, and the third information is used for indicating the measurement quantity of the terminal device searching for the NR cell at the first position.
Optionally, the evaluation result is related to at least LTE signal strength and NR signal strength of the terminal device at the first location.
It should be understood that the second information is used to indicate whether LTE and NR dual connectivity is available, and it can also be understood that the second information is used to indicate whether LTE and NR dual connectivity can be used by the terminal device in the camped LTE cell.
Optionally, before the terminal device determines the evaluation result of the first location according to at least one of the first information, the second information, and the third information, the method further includes:
the terminal device determines the third information.
Optionally, in this embodiment of the present application, the metric of the NR cell may be any one or a combination of more than one of the following:
(1) a Reference Signal Received Power (RSRP) of the NR cell;
(2) the Reference Signal Receiving Quality (RSRQ) of the NR cell;
(3) signal to interference plus noise ratio (SINR) of the NR cell;
(4) load of the NR cell;
(5) channel capacity of the NR cell.
In a possible implementation manner, in the case that the terminal device searches for an NR cell according to the method in S110, the third information includes, but is not limited to, any one of the following:
(1) the terminal device searches the value of the measurement quantity of the NR cell with the optimal measurement quantity in all the NR cells;
(2) the terminal device searches the average value of the measurement quantities of the L NR cells with the measurement quantity value larger than or equal to a predefined threshold value;
(3) the terminal device searches the average value of the measurement quantities of all NR cells with the measurement quantity value larger than or equal to a predefined threshold value;
(4) the average value of the metric quantities of all NR cells searched by the terminal device.
Illustratively, the terminal scans 10 frequency bands, each frequency band includes 5 frequency points, and 2 NR cells can be searched on each frequency point, but if the number of NR frequency bands supported by a PLMN selected on an LTE cell where the terminal device currently resides is 5, the number of cells that the terminal device can search is 50.
The terminal device may obtain and record a value of the metric of each of the 50 cells, and the third information includes an optimal value of the metric; alternatively, the first and second electrodes may be,
the terminal equipment stops scanning the NR cells after scanning that the value of the measurement quantity of the 5 cells is larger than a predefined threshold value, and the third information comprises the average value of the measurement quantity of the 5 cells; alternatively, the first and second electrodes may be,
the terminal device may obtain and record values of the metric of each of the 50 cells, where 10 of the 50 cells are greater than or equal to a predefined threshold value, and the third information includes an average value of the metrics of the 10 cells; alternatively, the first and second electrodes may be,
the terminal device may obtain and record a value of the metric of each of the 50 cells, and the third information is an average value of the metrics of the 50 cells.
In a possible implementation manner, in a case that the terminal device does not search for the NR cell according to the method in S110, the terminal device determines the third information as the first value, or the terminal device ignores the third information in a subsequent operation. It is to be understood that, in a case where the terminal device does not search for an NR cell, the terminal device may determine an evaluation result of the first position from the first information and the second information.
Optionally, before the terminal device determines the evaluation result of the first location according to at least one of the first information, the second information, and the third information, the method further includes:
the terminal device determines the second information according to first indication information and second indication information, wherein the first indication information is upper layer indication information carried in system information of the LTE cell, and the second indication information is used for indicating whether the network device limits the terminal device to use LTE and NR dual connection.
Several rules for the value of the second information are described below.
Optional rule 1
The system information of the LTE cell comprises a Public Land Mobile Network (PLMN) information list, first PLMN information in the PLMN information list comprises first indication information, and the terminal equipment sets the second information as a first numerical value under the condition that the network equipment is not limited to use LTE and NR dual connection by the terminal equipment, wherein the first PLMN information is information corresponding to a PLMN selected by the terminal equipment;
when the system information of the LTE cell does not include the PLMN information list, or when the system information of the LTE cell carries a public land mobile network PLMN information list but the first PLMN information does not include the first indication information, or when the second indication information indicates that the network device limits the terminal device to use LTE and NR dual connectivity, the terminal device sets the second information to a second value.
Optionally, the system information may be SIB 2.
Optionally, the first indication information may be upper layer indication information included in PLMN information in the PLMN information list.
Optionally, the second indication information is information indicating that dual connectivity admission limit or no-restriction using LTE and NR is used in an Attach admission Attach message received by the terminal device in an Attach procedure.
Optional rule 2
The system information of the LTE cell includes a PLMN information list, and at least one piece of PLMN information in the PLMN information list includes the first indication information, and the second indication information indicates that the network device does not restrict the terminal device from using LTE and NR dual connectivity, the terminal device sets the second information to a first value, and the first PLMN information is information corresponding to a PLMN selected by the terminal device;
when the system information of the LTE cell does not include the PLMN information list, or when the system information of the LTE cell carries the PLMN information list but each piece of PLMN information in the PLMN information list does not include the first indication information, or when the second indication information indicates that the network device limits the terminal device to use LTE and NR dual connectivity, the terminal device sets the second information to a second value.
Optional rule 3
The system information of the LTE cell includes a PLMN information list, and first PLMN information in the PLMN information list includes the first indication information, and the second indication information indicates that the network device does not restrict the terminal device from using LTE and NR dual connectivity, the terminal device sets the second information to a first value, and the first PLMN information is information corresponding to a PLMN selected by the terminal device;
the system information of the LTE cell comprises a PLMN information list, first PLMN information in the PLMN information list comprises first indication information, and the second indication information indicates that the terminal equipment sets the second information to be a second numerical value under the condition that the network equipment limits the terminal equipment to use LTE and NR dual connection;
when the system information of the LTE cell does not include a PLMN information list and the second indication information indicates that the network device does not restrict the terminal device from using LTE and NR dual connectivity, or when the system information of the LTE cell includes a PLMN information list and the first PLMN information does not include the first indication information and the second indication information indicates that the network device does not restrict the terminal device from using LTE and NR dual connectivity, the terminal device sets the second information to a third value;
when the system information of the LTE cell does not include the PLMN information list and the second indication information indicates that the network device restricts the terminal device from using LTE and NR dual connectivity, or when the system information of the LTE cell includes the PLMN information list and the first PLMN information does not include the first indication information and the second indication information indicates that the network device restricts the terminal device from using LTE and NR dual connectivity, the terminal device sets the second information to a fourth value.
Optional rule 4
Two variables (a first variable and a second variable) may be set in the second information in the optional rule 4, wherein,
setting the first variable as a first numerical value under the condition that the system information of the LTE cell comprises a PLMN information list and first PLMN information in the PLMN information list comprises the first indication information, wherein the first PLMN information is information corresponding to a PLMN selected by the terminal equipment;
setting the first variable to be a second value when the system message of the LTE cell does not include the PLMN list, or when the system message of the LTE cell includes the PLMN list and the first PLMN information in the PLMN information list does not include the first indication information;
setting the second variable device to be a first value under the condition that the second indication information indicates that the network device does not limit the terminal device to use LTE and NR dual connection;
and under the condition that the second indication information indicates that the network equipment limits the terminal equipment to use LTE and NR dual connection, setting the second variable equipment to be a second value.
Optional rule 5
The system information of the LTE cell comprises a PLMN information list, at least one piece of PLMN information in the PLMN information list comprises the first indication information, and the second indication information indicates that the terminal equipment sets the second information as a first value under the condition that the network equipment does not limit the terminal equipment to use LTE and NR dual connection;
the system information of the LTE cell comprises a PLMN information list, at least one piece of PLMN information in the PLMN information list comprises the first indication information, and the second indication information indicates that the terminal equipment sets the second information as a second numerical value under the condition that the network equipment limits the terminal equipment to use LTE and NR dual connection;
when the system information of the LTE cell does not include a PLMN information list and the second indication information indicates that the network device does not restrict the terminal device from using LTE and NR dual connectivity, or when the system information of the LTE cell includes a PLMN information list and each piece of PLMN information in the PLMN information list does not include the first indication information and the second indication information indicates that the network device does not restrict the terminal device from using LTE and NR dual connectivity, the terminal device sets the second information to a third value;
and when the system information of the LTE cell does not include the PLMN information list and the second indication information indicates that the network device restricts the terminal device from using LTE and NR dual connectivity, or when the system information of the LTE cell includes the PLMN information list and each piece of PLMN information in the PLMN information list does not include the first indication information and the second indication information indicates that the network device restricts the terminal device from using LTE and NR dual connectivity, the terminal device sets the second information to a fourth value.
Optional rule 6
Two variables (a first variable and a second variable) may be set in the second information in the optional rule 6, wherein,
setting the first variable to be a first numerical value under the condition that the system information of the LTE cell comprises a PLMN information list and at least one piece of PLMN information in the PLMN information list comprises the first indication information;
setting the first variable to be a second numerical value when the system message of the LTE cell does not include the PLMN list, or when the system message of the LTE cell includes the PLMN list and each piece of PLMN information in the PLMN information list does not include the first indication information;
setting the second variable device to be a first value under the condition that the second indication information indicates that the network device does not limit the terminal device to use LTE and NR dual connection;
and under the condition that the second indication information indicates that the network equipment limits the terminal equipment to use LTE and NR dual connection, setting the second variable equipment to be a second value.
Optionally, before the terminal device determines the evaluation result of the first location according to at least one of the first information, the second information, and the third information, the method further includes:
the terminal equipment acquires and records the measurement quantity of the LTE cell, and the first information comprises the value of the measurement quantity of the LTE cell.
Optionally, in this embodiment of the present application, the metric of the LTE cell may be any one or a combination of multiple of the following:
(1) reference signal received power, RSRP, of the LTE cell;
(2) reference signal received quality, RSRQ, of an LTE cell;
(3) a signal to interference plus noise ratio, SINR, of the LTE cell;
(4) load of the LTE cell;
(5) channel capacity of LTE cells.
In the above, several possible determination manners of the first information, the second information, and the third information are introduced, and in the following, the first information is the RSRP value of the LTE cell, the value of the second information is a value according to the above optional rule 1 (and the first value is 1, the second value is 0), and the third information is the RSRP value of the NR cell, and table 1 is used to exemplify how to determine the evaluation result of the first location.
TABLE 1
In the embodiment of the present application, the evaluation result may also be understood as a recommendation index or a comprehensive score of the location where the terminal device is located.
For example, the user may place the terminal device in a plurality of different locations (e.g., bedrooms and living rooms), thereby having the terminal device evaluate the location and display the evaluation result. When the terminal device is located in the bedroom, the value of the RSRP of the LTE cell where the terminal device is located, measured by the terminal device, is-90 dbm, the value of the second information is 1, and the value of the RSRP of the LTE cell where the terminal device is located, measured by the terminal device, is-80 dbm, so that the recommended index or the comprehensive score of the bedroom can be obtained to be 5.
When the terminal device is located in the living room, the value of the RSRP of the LTE cell where the terminal device is located, measured by the terminal device, is-100 dbm, the value of the second information is 1, and the value of the RSRP of the LTE cell where the terminal device is located, measured by the terminal device, is-110 dbm, so that the recommended index or the comprehensive score of the living room can be obtained to be 2.
It should be understood that the above description only describes the way in which the terminal device calculates the recommendation index or the composite score of the location by the form of a table, and the way in which the terminal device calculates the recommendation index or the composite score of the location by the form of another way, for example, the terminal device may determine the output result of the predefined function by taking the first information, the second information and the third information as the input through the predefined function, and use the output result as the recommendation index or the composite score of the location of the terminal device.
Optionally, the method 100 further comprises:
the terminal equipment prompts the evaluation result of the first position.
Optionally, the manner in which the terminal device prompts the evaluation result of the first location includes, but is not limited to, one or more of the following manners:
(1) the scores or the signal strength displayed by a display screen and the like of the measurement quantities of the LTE cell and/or the NR cell;
(2) reminding the scores or signal intensity of the position and other measurement quantities of the LTE cell and/or the NR cell through voice;
(3) the signal strength displayed by the signal lamp, etc. of the LTE cell and/or the NR cell.
FIG. 7 shows a set of GUIs that remind the user to evaluate the results by displaying the scores on a display screen.
Referring to fig. 7 (a), the terminal device may display a window 10 on the display screen, where the display window 10 reminds the user of inputting the current position through a genre, and when it is detected that the user inputs "bedroom" in the window 10 and an operation of clicking the control 11 by the user is detected, the terminal device starts evaluating the bedroom, and displays a GUI as shown in fig. 7 (b) after the evaluation is completed.
Referring to fig. 7 (b), the terminal device displays a window 12 through the display screen, where the window 12 includes the evaluation result of the terminal device on the bedroom, and it can be seen that the evaluation result of the terminal device on the bedroom is 90 points (full score is 100 points) of the comprehensive score of the bedroom.
Alternatively, a GUI as shown in fig. 7 (c) may also be displayed after the evaluation is completed. Referring to fig. 7 (c), the evaluation result of the terminal device for the bedroom may include coverage of the 5G signal, a signal with a 5G signal strength of 4 grids (the strongest signal strength is a 5-grid signal), a signal with a 4G signal strength of 5 stars, and a composite score of 90.
In some possible implementations, a signal lamp is further included on the terminal device, and the number of the blinking signal lamps or the brightness of the signal lamps can be used to indicate the intensity of the NR signal of the position where the terminal device is located.
In some possible implementations, two rows of signal lights are included on the terminal device, and the number of the flashing signal lights can be used to indicate the intensity of the LTE signal and the intensity of the NR signal at the location of the terminal device, respectively.
It is to be understood that the number of blinks of the LTE beacon or the degree of brightness of the beacon may be determined by the first information, and the number of blinks of the NR beacon or the degree of brightness of the beacon may be determined by the third information.
Fig. 8 is a schematic diagram showing a display condition of a signal lamp on a terminal device, as shown in fig. 8.
Optionally, when the first location includes a plurality of locations, the determining determines an evaluation result of the terminal device at the first location, including;
the terminal device determines an evaluation result for each of the plurality of locations.
The method further comprises the following steps:
the terminal device displays each position and an evaluation result corresponding to each position.
The terminal device can measure N positions, wherein N is a positive integer greater than or equal to 2, and after the evaluation of each position is completed, the position and the evaluation result of the position can be displayed.
For example, the terminal device may keep the measurement result for each location for a period of time, and fig. 9 shows a GUI after a certain location is evaluated, and the terminal device may display the evaluation results of the current location and the previously measured location through the display screen, and display each location and the evaluation result corresponding to each location through the display screen.
Referring to fig. 9, the terminal device displays three locations, "kitchen", "bedroom", and "living room", and displays the evaluation results corresponding to the three locations, wherein the composite score of "kitchen" is 90 points, the composite score of "bedroom" is 70 points, and the score of "living room" is 50 points.
After seeing the information, the user can determine that the communication quality is best when the terminal device is placed in the kitchen, and then the user can select to place the terminal device in the kitchen.
It should be understood that when the terminal device is located at a position with 5G signal coverage, the terminal device may display 5G signal coverage; the terminal device may display the 5G signal strength by the value of the metric of the NR cell; the terminal device can display the 4G signal strength through the value of the measurement quantity of the LTE cell.
According to the evaluation method for position recommendation in the embodiment of the application, the terminal equipment calculates the comprehensive score or recommendation index of the position where the terminal equipment is located, and displays the result to the user, so that the user can adjust the position of the terminal equipment in time, and the user can enjoy 5G network service in time.
In one embodiment, fig. 10 shows a schematic flow chart of a measurement method 200 provided by an embodiment of the present application, where the method 200:
s210, the terminal equipment judges whether the cell where the terminal equipment resides currently is an LTE cell, if so, S220 is executed; otherwise, the process ends.
S220, the terminal device reads the measurement quantity of the LTE cell and sets a third variable as the value of the measurement quantity of the LTE cell.
It should be understood that the setting process of the third variable may refer to the determination process of the first information in the method 100, and for brevity, will not be described again.
S230, the terminal device reads the SIB2 of the LTE cell and determines a fourth variable according to the SIB 2.
It should be understood that the setting process of the fourth variable may refer to the determination process of the second information in the method 100, and for brevity, will not be described herein again.
S240, the terminal device scans NR frequency bands, searches NR cells on carrier frequency points on each scanned NR frequency band, and executes S250 if the NR cells are searched and if the NR cells are scanned; otherwise, S260 is performed.
And S250, acquiring and recording the value of the measurement quantity of the NR cell, and setting a fifth variable as the value of the measurement quantity of the NR cell.
It should be understood that the setting process of the fifth variable may refer to the determination process of the third information in the method 100, and for brevity, will not be described again.
S260, the fifth variable is set to a predefined value (e.g., 0), or the third variable is ignored in subsequent operations.
And S270, the terminal equipment determines the comprehensive score or recommendation index of the current position according to the third variable, the fourth variable and the fifth variable (if the third variable, the fourth variable and the fifth variable exist).
S280, the terminal device displays information to a user, wherein the displayed information comprises but is not limited to whether a 5G signal is covered; 5G signal intensity; 4G signal intensity; one or more of a composite score or a recommendation index.
In the embodiment of the application, when the terminal device is placed at different positions, S210-S280 may be repeatedly executed, the information of each position is determined, and after the user acquires the information of each position, the user may select to place the terminal device at the optimal position, so that the user is facilitated to enjoy the 5G network service in time, and the user experience is improved.
After the terminal device determines the best position according to the method provided in the method 100 or the method 200, if the current position is covered by the signal of the NR cell, the terminal device needs to further obtain the value of the metric of the NR cell in real time in order for the user to know the real-time change of the metric of the NR cell at the current position. The present embodiment provides three methods for acquiring the value of the metric of the NR cell at a certain specific placement by the terminal device.
Fig. 11 shows a schematic flow chart of an evaluation method 300 for location recommendation of an embodiment of the present application, and as shown in fig. 11, the method 300 includes:
s310, the terminal equipment searches an NR cell at a second position by adopting a predefined period;
s320, the terminal device determines fourth information, where the fourth information is a value of the metric of the NR cell searched by the terminal device.
Optionally, the method 300 further comprises:
the terminal equipment prompts the signal intensity of the NR cell or prompts the signal intensity of the 5G cell.
It should be understood that the value of the metric of the NR cell searched by the terminal device may reflect the signal strength of the NR cell or the 5G signal strength.
Optionally, the method 300 further comprises:
the terminal device determines a value of a metric for an LTE cell in which the terminal device is camped.
It should be understood that the value of the metric of the LTE cell searched by the terminal device may reflect the signal strength of the LTE cell or the 4G signal strength.
It should be understood that the method 300 may occur after the terminal device detects a certain operation by the user, reflecting the LTE signal strength or 5G signal loudness of the current location through a signal light or a signal grid on the display screen; or, after a certain place of the terminal device meets a certain condition, the LTE signal strength or 5G signal loudness of the current position may be reflected through a signal lamp or a signal grid on a display screen.
Optionally, the terminal device uses a predefined period, before searching for the NR cell at the second location, the method further includes:
the terminal device detects that the terminal device moves from a first location to a second location.
Illustratively, the terminal device detects that the terminal device is placed at a certain position, and when a condition is reached, for example, the terminal device stays at a certain position for more than 30 seconds or 1 minute, the LTE signal strength or 5G signal loudness at the current position can be reflected by a signal lamp or a signal grid on a display screen.
As shown in fig. 8, two rows of indicator lights may be provided on the terminal device to respectively represent the 4G signal intensity and the 5G signal intensity, and when the time that the terminal device stays at a certain position reaches a certain time threshold, the terminal device may automatically display the 4G signal intensity and the 5G signal intensity of the current position in real time through the two rows of display lights.
Illustratively, the first location is a living room, the second location is a kitchen, the terminal device obtains a composite score of the two locations by evaluating the two locations, the composite score of the kitchen is better than that of the living room, the user can choose to place the terminal device in the kitchen after obtaining the composite scores of the two locations, and the kitchen is covered by the NR cells, at this time, the terminal device can obtain the measurement of the NR cells in the kitchen in real time in order to make the user know real-time change of the measurement value of the NR cells in the kitchen.
Several methods of determining the fourth information are described below.
Method 1
After the terminal device is placed at the second location, the terminal device first determines the NR cell with the optimal measurement quantity at the time of placement. The cell with the best metric is the first cell. Thereafter, the terminal device periodically obtains the value of the metric of the first cell, e.g., the terminal device adopts a predefined period P1The value of the metric of the first cell is obtained by periodically measuring the first cell. The terminal device may determine a value of the metric of the first cell as the fourth information.
Method 2
After the terminal device is placed at the second location, the terminal device periodically scans the NR frequency bands, and scans NR cells on each carrier frequency point (ARFCN) on each scanned NR frequency band, where the period for scanning the NR frequency bands and all NR cells may be, for example, P2. The terminal device acquires the measurement quantity of the searched NR cell. The terminal device may determine a value of the metric of a second cell as the fourth information, where the second cell is a cell with the best metric among all cells searched by the terminal device; alternatively, the terminal device may use an average value of the measurement quantities in all the cells of the search as the fourth information.
It should be understood that, in method 2, reference may be made to the method 100 for frequency bands, carrier frequency points, and cells to be searched, which are scanned by the terminal device, and details are not described herein for brevity.
Method 3
After the terminal device is placed at the second location, the terminal device first determines the NR cell with the optimal measurement quantity at the time of placement.
If the metric of the cell is greater than or equal to a predefined threshold, the cell is defined as a first cell. The terminal device may periodically obtain the value of the metric of the first cell, e.g. with a predefined period P1The value of the metric of the first cell is obtained by periodically measuring the first cell. The terminal device may determine a value of the metric of the first cell as the fourth information.
If the measurement quantity of the cell is smaller than the predefined threshold value, the terminal device may periodically scan the NR frequency band, scan the NR cell on each carrier frequency point (ARFCN) on each scanned NR frequency band, and acquire the value of the measurement quantity of the searched NR cell. The terminal device may determine, as the fourth information, a value of a metric of a second cell, which is a cell with an optimal metric among all cells searched by the terminal device. The terminal device continues to perform this process until it is found that the value of the measured quantity is greater than or equal to the predefined threshold value.
When the terminal device searches for an NR cell having a metric greater than or equal to a predefined threshold, the terminal device may use the NR cell having the metric greater than or equal to the predefined threshold and the metric being optimal as a third cell. Thereafter, the terminal device periodically obtains the value of the metric of the third cell, for example, the terminal device adopts a predefined period P1And obtaining the value of the metric of the third cell by periodically measuring the third cell. The terminal device may determine a value of the metric of the third cell as the fourth information.
Method 4
After the terminal device is placed at the second position, the terminal device may adopt the defined periodicity P3And acquiring the measurement quantities of the L NR cells at the current position. The acquisition of the L NR cells may refer to the method 100 described above. The terminal device may determine an average value of the measurement quantities of the L NR cells as the fourth information, orThe terminal device may determine, as the fourth information, a value of the metric of the cell whose metric is optimal among the L NR cells.
It should be understood that the process of determining the fourth information by the terminal device in the method 300 may refer to the process of determining the third information in the method 100 described above.
Fig. 12 shows a schematic flowchart of a method 400 provided in this embodiment of the present application, where a terminal device is located at a third location, a cell where the terminal device resides at the third location is an NR cell, that is, a main mode of the terminal device is NR, and a corresponding network scenario and a system architecture include: a 5G only network; the system supports 4G and 5G networks simultaneously and supports NE-DC networking.
The method 400 includes:
s410, the terminal equipment judges whether the cell resided at present is an NR cell, if so, S420 is executed; otherwise, the process ends.
S420, the terminal device obtains and records the value of the metric of the NR cell, and sets a sixth variable as the value of the metric of the NR cell.
It should be understood that, for brevity, the process of the terminal device obtaining the value of the metric of the NR cell may refer to the method 100 described above, and is not described herein again.
S430, the terminal device scans LTE frequency bands and searches LTE cells on carrier frequency points on each scanned LTE frequency band. If the LTE cell is searched, S440 is performed; otherwise, S450 is performed.
It should be understood that the LTE frequency band to be scanned by the terminal device, the carrier frequency point to be cell searched, and the LTE cell to be searched may refer to the NR frequency band to be scanned by the terminal device, the carrier frequency point to be cell searched, and the NR cell to be searched in the method 100, which is not described herein again for brevity.
S440, the terminal device obtains and records the value of the metric of the LTE cell, and sets the seventh variable as the value of the metric of the LTE cell.
It should be understood that the setting process of the seventh variable may refer to the determination process of the third information in the method 100, and for brevity, will not be described again.
S450, the terminal device sets the seventh variable to a predefined value, or ignores the seventh variable in a subsequent operation.
S460, the terminal device determines a composite score or recommendation index for the third location according to the sixth variable and the seventh variable (if any).
S470, the terminal device displays one or more of the following information:
(1) whether 5G signals are covered or not;
(2)5G signal intensity;
(3)4G signal intensity;
(4) a composite score or a recommendation index.
The user can place the terminal device in N different locations, respectively. At the N different positions, the terminal device respectively obtains the measurement quantity of the NR cell and the measurement quantity of the LTE cell at the current position, and determines a comprehensive score or a recommendation index of the current position according to the measurement quantity of the NR cell and the measurement quantity of the LTE cell. And displaying any one or combination of the following information of the current position to the user: 5G signal intensity; whether 4G signals are covered or not; 4G signal intensity; a composite score or a recommendation index. In this way, the user can determine the placement location that will bring the best business experience based on the information displayed above.
Fig. 13 shows a schematic flowchart of a method 500 provided in this embodiment of the present application, where a terminal device is located at a fourth position, a cell where the terminal device resides at the fourth position is an NR cell, that is, a main mode of the terminal device is NR, and a corresponding scenario is a network that only supports 5G, and a corresponding system architecture includes NR SA networking and NR DC networking.
The method 500 includes:
s510, the terminal equipment judges whether the cell resided at present is an NR cell, if so, S520 is executed; otherwise, the process ends.
S520, the terminal device obtains and records the value of the metric of the NR cell, and sets an eighth variable as the value of the metric of the NR cell.
It should be appreciated that the metric for the NR cell may refer to the method 100 described above.
It should also be understood that the process of the terminal device obtaining the value of the metric of the NR cell may refer to the method 100 described above, and for brevity, the description is omitted here.
S530, the terminal device determines a composite score or recommendation indication of the fourth location according to the eighth variable.
S540, the terminal equipment displays one or more of the following information:
(1)5G signal intensity;
(2) composite score or recommendation index
The user can place the terminal device in N different locations, respectively. At the N different positions, the terminal device respectively obtains the measurement quantities of the NR cells at the current position, and determines a comprehensive score or a recommendation index of the current position according to the measurement quantities of the NR cells. And displaying any one or combination of the following information of the current position to the user: 5G signal intensity; a composite score or a recommendation index. In this way, the user can determine the placement location that will bring the best business experience based on the information displayed above.
One of the possible indicators of an NR cell is the channel capacity of the NR cell at a certain location of the terminal device, or the multi-stream number capability of the data channel of the NR cell. In order to be able to estimate the channel capacity of an NR cell, a terminal device needs to measure a reference signal transmitted by the NR cell through a multi-port. For a terminal device in an RRC idle state, in order to obtain a measurable reference signal transmitted by multiple ports, the present embodiment provides the following schemes.
Scheme one
And configuring and transmitting the frequency point, the cell identification and the configuration information of the reference signal transmitted by multiple ports of the adjacent NR cell in the system information of the LTE cell.
Scheme two
And the UE sends a specific Preamble to the network, and the UE is indicated to be required to carry out the information that the base station sends the measurement of the adjacent NR cell through the specific Preamble. After receiving the preamble, the base station configures the frequency point, the cell identifier and the configuration information of the reference signal transmitted by multiple ports for the UE through the RRC dedicated signaling or the system information. The specific Preamble may be notified to the UE in the system information of the LTE cell.
Scheme three
And the UE sends a Preamble in a specific PRACH time frequency resource, and the UE is indicated to carry out adjacent NR cell measurement through the specific PRACH time frequency resource. After receiving the preamble from the specific PRACH time frequency resource, the base station configures the frequency point, the cell identifier and the configuration information of the reference signal transmitted by multiple ports for the UE through the RRC dedicated signaling or the broadcast message. The specific PRACH time-frequency resources described above may be notified to the UE in the system information of the LTE cell.
Scheme four
The UE sends an RRC message in MSG3 during random access, which indicates that the UE needs to make measurements of the neighboring NR cells. After receiving the RRC message, the base station configures the frequency point, the cell identifier, and the configuration information of the reference signal transmitted by multiple ports of the adjacent NR cell through the RRC dedicated signaling.
The configuration information of the reference signal transmitted by multiple ports may include, for example, a sequence of the reference signal, a time-frequency domain resource location of the reference signal, a transmission power of the reference signal, and the like.
The evaluation method for location recommendation provided by the embodiment of the present application is described above with reference to fig. 6 to 13, and the apparatus provided by the embodiment of the present application is described below with reference to fig. 14 and 15.
Fig. 14 shows a schematic block diagram of an apparatus 600 provided in an embodiment of the present application, and as shown in fig. 14, the apparatus 600 includes:
a searching unit 610, configured to search for an NR cell at a first location, where the apparatus 600 is located at the first location, and a cell where the first location resides is a long term evolution LTE cell;
a processing unit 620, configured to determine an evaluation result of the apparatus at the first location according to at least one of first information, second information and third information, the first information being used for indicating a metric of the LTE cell where the apparatus resides, the second information being used for indicating whether LTE and NR dual connectivity is available at the first location, the third information being used for indicating a metric of the NR cell searched by the apparatus at the first location, the evaluation result being related to at least LTE signal strength and NR signal strength at the first location.
Optionally, the apparatus 600 further comprises:
a prompting unit 630, configured to prompt an evaluation result of the first location.
Optionally, when the first location includes a plurality of locations, the processing unit 620 is specifically configured to:
determining an evaluation result of each of the plurality of positions to obtain a plurality of evaluation results;
the prompting unit 630 is further configured to:
and prompting each position and an evaluation result corresponding to each position.
Optionally, the prompting unit 630 prompts the evaluation result of the first position by one or more of a displayed score or signal strength, a score or signal strength of a voice unit, and a signal strength of a signal light display unit.
Optionally, the processing unit 620 is further configured to, before determining the evaluation result of the first location, determine the second information according to first indication information and second indication information, where the first indication information is upper layer indication information carried in system information of the LTE cell, and the second indication information is used to indicate whether the network device restricts the terminal device from using LTE and NR dual connectivity.
Optionally, the processing unit 620 is specifically configured to:
the system information of the LTE cell includes a public land mobile network PLMN information list, and first PLMN information in the PLMN information list includes the first indication information, and the second indication information indicates that the network device does not restrict the apparatus from using LTE and NR dual connectivity, and sets the second information to a first value, where the first PLMN information is information corresponding to a PLMN selected by the terminal device;
and when the system information of the LTE cell does not include a public land mobile network PLMN information list, or when the system information of the LTE cell carries the public land mobile network PLMN information list but the first PLMN information does not include the first indication information, or when the second indication information indicates that the network device restricts the apparatus from using LTE and NR dual connectivity, setting the second information to a second value.
Optionally, the processing unit 630 is specifically configured to: determining an NR frequency band to be scanned; the terminal equipment searches an NR cell on the NR frequency band; or
Optionally, the processing unit 630 is specifically configured to: the terminal equipment determines an NR frequency band needing to be scanned and a carrier frequency band needing to be scanned on the NR frequency band; and the terminal equipment searches for the NR cell on the NR frequency band and the carrier frequency point.
Optionally, the searching unit 610 is specifically configured to:
according to a predefined rule, an NR cell is searched at the first location.
Optionally, the searching unit 610 is specifically configured to: stopping the search for the NR cell when L cells with a metric greater than or equal to a first predefined threshold are searched, where L is a positive integer greater than or equal to 1.
Optionally, the third information is an average value of the metric quantities of the L cells, or the third information is an optimal metric quantity of the metric quantities of the L cells.
Optionally, the third information is a metric of the first cell, and the first cell is a cell with an optimal metric in the cells searched by the terminal device.
Optionally, the NR frequency band is one or more of the following:
all NR frequency bands which can be supported by the terminal equipment;
all NR frequency bands supported by the PLMN selected by the terminal equipment;
and the preset NR frequency band needing to be scanned in the terminal equipment.
It is to be understood that the apparatus 600 may correspond to the terminal device according to the above method embodiments, and that the apparatus 600 may include means for performing the method performed by the terminal device in the methods 100 to 500. Also, the units in the apparatus 600 and other operations and/or functions described above are respectively for implementing the corresponding flows of the method 100 to the method 500 for transmitting information. For the specific process of each unit executing the corresponding steps, reference is made to the description in the foregoing combined with the method embodiments, and details are not repeated here for the sake of brevity.
Fig. 15 shows a schematic structural diagram of a terminal device provided in an embodiment of the present application, which may be the terminal device in the above embodiment, and is used to implement the operation of the terminal device in the above embodiment. As shown in fig. 15, the terminal device includes: an antenna 710, a radio frequency section 720, a signal processing section 730. The antenna 710 is connected to the radio frequency section 720. In the downlink direction, the rf section 720 receives information transmitted by the network device through the antenna 710, and transmits the information transmitted by the network device to the signal processing section 730 for processing. In the uplink direction, the signal processing portion 730 processes the information of the terminal device and sends the information to the radio frequency portion 720, and the radio frequency portion 720 processes the information of the terminal device and sends the information to the network device through the antenna 710.
The signal processing portion 730 may include a modem subsystem for implementing processing of various communication protocol layers of data; the system also comprises a central processing subsystem which is used for realizing the processing of an operating system and an application layer of the terminal equipment; in addition, other subsystems, such as a multimedia subsystem for controlling a camera, a screen display, etc. of the terminal device, a peripheral subsystem for connecting with other devices, etc. may be included. The modem subsystem may be a separately provided chip. Alternatively, the above means for the terminal device may be located at the modem subsystem.
The modem subsystem may include one or more processing elements 731, for example, including a master CPU and other integrated circuits. The modem subsystem may also include a storage element 732 and an interface circuit 733. The storage element 732 is used to store data and programs, but the programs for executing the methods executed by the terminal device in the above methods may not be stored in the storage element 732, but may be stored in a memory outside the modem subsystem, and the modem subsystem is loaded for use when used. The interface circuit 733 is used to communicate with other subsystems. The above apparatus for a terminal device may be located in a modem subsystem, which may be implemented by a chip comprising at least one processing element for performing the steps of any of the methods performed by the above terminal device and interface circuitry for communicating with other apparatus. In one implementation, the unit for the terminal device to implement each step in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the terminal device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the terminal device in the above method embodiment. The memory elements may be memory elements with the processing elements on the same chip, i.e. on-chip memory elements.
In another implementation, the program for performing the method performed by the terminal device in the above method may be a memory element on a different chip than the processing element, i.e. an off-chip memory element. At this time, the processing element calls or loads a program from the off-chip storage element onto the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.
In yet another implementation, the unit of the terminal device for implementing the steps of the above method may be configured as one or more processing elements disposed on the modem subsystem, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.
The units of the terminal device for realizing the steps of the method can be integrated together and realized in the form of SOC, and the SOC chip is used for realizing the method. At least one processing element and a storage element can be integrated in the chip, and the processing element calls the stored program of the storage element to realize the method executed by the terminal equipment; or, at least one integrated circuit may be integrated in the chip, for implementing the method executed by the above terminal device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.
It is seen that the above apparatus for a terminal device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform the method performed by any one of the terminal devices provided by the above method embodiments. The processing element may: namely, the method calls the program stored in the storage element to execute part or all of the steps executed by the terminal equipment; it is also possible to: that is, some or all of the steps performed by the terminal device are performed by integrated logic circuits of hardware in the processor element in combination with the instructions; of course, some or all of the steps performed by the terminal device may be performed in combination with the first manner and the second manner.
According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to perform the method in the above-described embodiments.
According to the method provided by the embodiment of the present application, the present application also provides a computer readable medium storing program code, which when run on a computer, causes the computer to execute the method in the above embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Claims (13)

1. An evaluation method for position recommendation, the method being applied to a terminal device, and the method comprising:
the terminal equipment searches an NR cell at a first position, wherein the terminal equipment is positioned at the first position, and the cell where the first position resides is a Long Term Evolution (LTE) cell;
the terminal device determines an evaluation result of the terminal device at the first location according to at least one of first information, second information and third information, wherein the first information is used for indicating a measurement quantity of the LTE cell where the terminal device is camping, the second information is used for indicating whether LTE and NR dual connection is available at the first location, the third information is used for indicating a measurement quantity of the NR cell searched by the terminal device at the first location, the evaluation result is at least related to LTE signal strength and NR signal strength at the first location, and before determining the evaluation result of the first location, the method further comprises:
the terminal device determines the second information according to first indication information and second indication information, wherein the first indication information is upper layer indication information carried in system information of the LTE cell, and the second indication information is used for indicating whether the network device limits the terminal device to use LTE and NR dual-connection
The terminal device determines the second information according to the first indication information and the second indication information, and the determining includes:
the system information of the LTE cell comprises a Public Land Mobile Network (PLMN) information list, first PLMN information in the PLMN information list comprises the first indication information, and the terminal equipment sets the second information as a first numerical value under the condition that the network equipment is not limited to use LTE and NR dual connection by the terminal equipment, wherein the first PLMN information is information corresponding to a PLMN selected by the terminal equipment;
when the system information of the LTE cell does not include a public land mobile network PLMN information list, or when the system information of the LTE cell carries a public land mobile network PLMN information list but the first PLMN information does not include the first indication information, or when the second indication information indicates that the network device limits the terminal device to use LTE and NR dual connectivity, the terminal device sets the second information to a second value.
2. The method of claim 1, further comprising:
and the terminal equipment prompts the evaluation result of the first position.
3. The method according to claim 1 or 2, wherein when the first location comprises a plurality of locations, the determining the evaluation result of the terminal device at the first location comprises:
the terminal equipment determines an evaluation result of each position in the plurality of positions to obtain a plurality of evaluation results;
the method further comprises the following steps:
and the terminal equipment prompts each position and an evaluation result corresponding to each position.
4. The method according to claim 3, wherein the terminal device prompts the evaluation result of the first position by one or more of score or signal strength displayed by a display screen, score or signal strength of voice prompt and signal strength displayed by a signal lamp.
5. The method of claim 1 or 2 or 4, wherein the searching for the NR cell at the first location comprises:
the terminal equipment determines an NR frequency band needing to be scanned; the terminal equipment searches an NR cell on the NR frequency band; alternatively, the first and second electrodes may be,
the searching for the NR cell at the first location includes:
the terminal equipment determines an NR frequency band needing to be scanned and a carrier frequency band needing to be scanned on the NR frequency band;
and the terminal equipment searches for the NR cell on the NR frequency band and the carrier frequency point.
6. The method of claim 1, 2 or 4, wherein the terminal device searches for the NR cell at the first location, comprising:
and the terminal equipment searches the NR cell at the first position according to a predefined rule.
7. The method of claim 6, wherein the terminal device searches for the NR cell at the first location according to a predefined rule, comprising:
and stopping the search for the NR cell when the terminal equipment searches L cells with the metric quantity being greater than or equal to a first predefined threshold, wherein L is a positive integer greater than or equal to 1.
8. The method of claim 7, wherein the third information is an average value of the L cell metrics, or wherein the third information is an optimal metric among the L cell metrics.
9. The method according to claim 6, wherein the third information is a metric of a first cell, and the first cell is a cell with an optimal metric among cells searched by the terminal device.
10. The method of any one of claims 7 to 9, wherein the NR frequency bands are one or more of:
all NR frequency bands which can be supported by the terminal equipment;
all NR frequency bands supported by the PLMN selected by the terminal equipment;
and the preset NR frequency band needing to be scanned in the terminal equipment.
11. An apparatus configured to perform the method of any one of claims 1-10.
12. An apparatus, comprising: a processor coupled with a memory;
a memory for storing a computer program;
a processor for executing a computer program stored in the memory to cause the apparatus to perform the method of any of claims 1-10.
13. A readable storage medium comprising a program or instructions for performing the method of any of claims 1-10 when the program or instructions are run on a computer.
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