Patent Application
20220038857
This disclosure claims priority to Chinese Patent Application No. 201811076343.0, filed with the Chinese Patent Office on Sep. 14, 2018, the disclosure of which is incorporated herein by reference in its entirety.
The present disclosure relates to the field of communications, and in particular to a positioning method and apparatus for a UE, a storage medium, and an electronic device.
The 3rd Generation Partnership Project (3GPP) has introduced support for position service since release 9, and now position services has become an important value-added service in wireless communication networks.
Cell Identity (Cell ID) and Enhanced Cell Identity (E-CID) are very important positioning methods in communication networks. The basic principle is to estimate the position of a User Equipment (UE) by using the geographical coordinates of a serving cell. E-CIDs use some additional measurement information to perform positioning, this additional measurement information usually has other functions, and is not measured just for positioning.
In order to achieve a faster data transmission rate, in the 5th generation mobile networks (5G), the millimeter wave technology is used.
Millimeter waves refer to electromagnetic waves with millimeter scale wavelengths, and the frequency of the millimeter wave is approximately between 30 GHz˜300 GHz. One characteristic of the millimeter wave frequency band is severe attenuation in air, weak radiation capability, and large influence on absorption of air and rain. To overcome these factors affecting propagation, massive arrays and narrow beams are taken as an important technology for data transmission. In the related technology of the 5G standard, it has been determined that the Synchronization Signal/Physical Broadcast Channel Block (SS/PBCH Block) is sent in the manner of narrow beam polling in the millimeter wave band to achieve the synchronization function. The beam polling manner can avoid interference between Synchronization Signal Blocks (SSBs) transmitted by different cells to some extent. A positioning method based on 5G signal measurement has not been designed in the 5G standard.
Embodiments of the present disclosure provide a positioning method and apparatus for a UE, so as to at least solve the problem in the related art that the location of a UE cannot be measured based on a 5G signal.
According to an embodiment of the present disclosure, a positioning method for a UE is provided, the method includes: after a UE initiates a positioning request, the UE receiving first supplementary information sent by a LMF, the first supplementary information comprises SSB beam polling information of a designated cell, and the SSB beam polling information is reported to the LMF by a NG-RAN node; the UE measures the designated cell to acquires first measurement information; the UE determines the location of the UE according to the first measurement information and the first supplementary information.
According to another embodiment of the present disclosure, another positioning method for a user equipment is provided, the method includes: a LMF receives SSB beam polling information reported by a NG-RAN node; after the NG-RAN node initiates the positioning request, the LMF obtains a second measurement information of the specified cell; the LMF determines the location of the UE according to the second measurement information and the SSB beam polling information.
According to another embodiment of the present disclosure, another positioning method for a user equipment is provided, the method includes: after a NG-RAN node initiates a positioning request, the NG-RAN node acquires a third measurement information of a serving cell from a UE; the NG-RAN node determining the location of the UE according to the information about the NG-RAN node and the third measurement information, wherein the information about the NG-RAN node comprises SSB beam polling information.
According to another embodiment of the present disclosure, a positioning apparatus for a UE is provided. The positioning apparatus is located in a UE, and the positioning apparatus comprises: a first receiving module, configured to receive, after a UE initiates a locating request, first supplementary information sent by an LMF, the first supplementary information comprises SSB beam polling information of a designated cell reported by a NG-RAN node to the LMF; a measurement module, configured to measure the specified cell and acquire first measurement information; a first positioning module, configured to determine the position of the UE according to the first measurement information and the first supplementary information.
According to another embodiment of the present disclosure, provided is another positioning device for a UE, the positioning device is located in a LMF, and positioning device includes: a second receiving module, configured to receive SSB beam polling information reported by an NG-RAN node; an acquisition module, configured to acquire a second measurement information of a specified cell after an NG-RAN node initiates a positioning request; and a second positioning module, configured to determine the location of the UE according to the second measurement information and the SSB beam-polling information.
According to another embodiment of the present disclosure, another positioning device for a UE is provided, which is located in a NG-RAN node and comprises: a third receiving module, configured to acquire a third measurement information of a serving cell from a UE after the NG-RAN node initiates a positioning request; a third positioning module, configured to determine a location of the UE according to the information of the NG-RAN node and the third measurement information, wherein the information of the NG-RAN node at least comprises SSB beam-polling information.
According to yet another embodiment of the present disclosure, a storage medium is also provided, wherein a computer program is stored in the storage medium stores, and the computer program is configured to run to execute the method mentioned in any one of the above embodiments.
According to another embodiment of the present disclosure, also provided is an electronic device, which comprises a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program so as to execute the method mentioned in any one of the described embodiments.
Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings and embodiments. It is important to note that the embodiments of the present disclosure and the characteristics in the embodiments can be combined under the condition of no conflicts.
It should be noted that, terms such as “first” and “second” in the specification, claims, and accompanying drawings of the present disclosure are used to distinguish similar objects, but are not necessarily used to describe a specific sequence or order.
The method embodiments provided in embodiments of the present disclosure may be implemented in a mobile terminal, a computer terminal, or a similar computing apparatus. Taking a mobile terminal as an example,
The memory 104 may be configured to store a computer program, for example, a software program and a module of disclosure software, such as a computer program corresponding to the positioning method of the UE in the embodiment of the present invention. The processor 102 runs the computer program stored in the memory 104, so as to execute various function applications and data processing, that is, implement the foregoing method. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located from the processor 102, which may be connected to the mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmitting device 106 is configured to receive or transmit data via a network. Specific examples of the described network may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmitting device 106 may comprise a Network Interface Controller (NIC) that may be coupled to other network devices via a base station to communicate with the Internet. In one example, the transmitting device 106 can be a Radio Frequency (RF) module for communicating wirelessly with the Internet.
The present embodiment provides a positioning method for a UE, and the method can be applied in the mobile terminal.
Step S202, after initiating a positioning request, a UE receives first supplementary information sent by a Location Management Function (LMF), the first supplementary information at least comprises Synchronization Signal Block (SSB) beam polling information of a designated cell, and the SSB beam polling information is reported to the LMF by The Next Generation Radio Access Network (NG-RAN) node.
Step S204, the UE measures the specified cell and acquires first measurement information.
Step S206, the UE determines the location of the UE according to the first measurement information and the first supplementary information.
By means of the present disclosure, measurement information of a cell measured by a UE and SSB beam polling information of a cell provided by an NG-RAN node can be applied to a plurality of network elements or devices in a network. Therefore, the problem in the related art that the position of the UE cannot be measured based on the 5G signal can be solved, thereby achieving the effect of implementing positioning of the device without increasing resource overhead, and also improving the positioning accuracy.
In an embodiment, the SSB beam polling information at least comprises: a sub-carrier interval and cyclic prefix configuration for sending the SSB, the number of the SSB beams, the overall SSB index of the designated cell and a coverage angle of the SSB beam in a geographic coordinate system.
In an embodiment, the NG-RAN node sends the SSB beam polling information carried in additional information of the New Radio Positioning Protocol annex (NRPPa) to the LMF.
Specifically, the SSB beam polling information may be added to the E-CID Measurement Result in the E-CID Measurement Initiation Response.
In addition, the SSB beam polling information can also be added to individually reported positioning common information. Wherein, the positioning public information at least comprises: cell geographical location information and other information.
Specifically, the LMF transmits the first supplementary information carrying the SSB beam polling information to the UE through LTE Positioning Protocol (LPP) or NR Positioning Protocol annex (NRPP) information.
In an embodiment, before the UE receives the first supplementary information sent by the LMF, the UE sends a supplementary information request message for requesting the first supplementary information to the LMF.
It should be noted that, if the UE does not request or the UE is in a “busy” state, the UE cannot actively request to obtain the first supplementary information, the LMF may send the first supplementary information to the UE by itself.
Specifically, the LMF may determine whether the request time of the UE pre-determined by the UE expires, and if so, send the first supplementary information to the UE by itself.
Specifically, the LMF may further send a query instruction to the UE, and determine, according to a query result responded by the UE, whether to send the first supplementary information to the UE.
It should be noted that, other manners capable of implementing that the LMF actively sends the first supplementary information to the UE based on the idea of this embodiment all belong to the scope of protection of this embodiment.
Alternatively, the specified cell includes at least one of the following: a serving cell where the UE is located, and an adjacent cell of the serving cell where the UE is located.
Specifically, if the UE only acquires the first measurement information corresponding to the serving cell through measurement, this embodiment mainly aims at locating the UE in the serving cell where the UE is located, that is, single cell SSB positioning. If the UE further obtains the first measurement information corresponding to the neighbor cells through measurement, the solution applied in this embodiment is directed to positioning of the UE in a plurality of cells, that is, multi-cell SSB positioning. In addition, if the UE only obtains the first measurement information corresponding to the neighbor cells through measurement, this embodiment mainly aims to locate the UE in the neighbor cells of the serving cell where the UE is located. Therefore, according to actual use requirements, the UE can respectively measure different cells by using different measurement strategies so as to acquire different first measurement information. Thus, the positioning of the UE in different cells is achieved.
In an embodiment, the first supplementary information further comprises at least one of the following: geographic coordinates of the serving cell, and geographic coordinates of the neighboring cell.
In an embodiment, when the specified cell includes the neighboring cell, the first supplementary information further includes cell identification information of the neighboring cell.
In an embodiment, the first measurement information includes one of the following: an SSB index of the specified cell, a Reference Signal Received Power (RSRP) and a Reference Signal Received Quality (RSRQ) of one or more signals in the SSB.
Specifically, the SSB index of the specified cell in the first measurement information refers to one or more of all the SSB indexes of the specified cell. For example, taking a serving cell as an example, if 8 SSB indexes exist in the serving cell, the SSB index of the specified cell in the first measurement information is one or more of the 8 SSB indexes.
In an embodiment, if the measurement result measured by the UE exceeds any one of the SSBs in the specified cell, the UE selects the one with the highest strength or the strength greater than the strength threshold from the specified cell as the SSB index of the specified cell in the first measurement information.
Specifically, the UE estimates the location of the UE according to the found SSB index of the specified cell and other information in the first supplementary information, and the overlapping range of the locations covered by the SSB beam in the geographic coordinate system.
Specifically, the UE may estimate the location of the UE more accurately by using all or some of the following: RSRP and RSRQ of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a Physical Broadcast Channel (PBCH), and a Demodulation Reference Signal (DMRS) of the PBCH in the SSB.
In this embodiment, a positioning method for a UE is provided, and the method can be applied in the mobile terminal which has been described above, and the content has been mentioned will not be repeated again.
Step S302, an LMF receives SSB beam polling information reported by an NG-RAN node;
Step S304, after initiating the positioning request, the LMF obtains second measurement information of the specified cell;
Step S306, the LMF determines the location of the UE according to the second measurement information and the SSB beam-polling information.
In an embodiment, the SSB beam polling information at least comprises: a sub-carrier interval and cyclic prefix configuration for sending the SSB, the number of the SSB beams, the overall SSB index of the designated cell and a coverage angle of the SSB beam in a geographic coordinate system. In an embodiment, the NG-RAN node sends the MSB beam polling information carried in the NRPPa information to the LMF.
Specifically, the SSB beam polling information may be added to the E-CID Measurement Result in the E-CID Measurement Initiation Response.
In addition, the SSB beam polling information can also be added to individually reported positioning common information. Wherein, the positioning public information at least comprises: cell geographical location information and other information.
Alternatively, the specified cell includes at least one of the following: a serving cell where the UE is located and an adjacent cell of the serving cell where the UE is located.
Specifically, if the UE only acquires the second measurement information corresponding to the serving cell through measurement, then this embodiment is mainly directed to locating the UE in the serving cell where the UE is located, i.e., single cell SSB positioning. If the UE further obtains the second measurement information corresponding to the neighbor cell through measurement, the solution applied in this embodiment is directed to positioning of the UE in a plurality of cells, that is, multi-cell SSB positioning. In addition, if the UE only obtains the second measurement information corresponding to the neighboring cell through measurement, this embodiment mainly aims to locate the UE in the neighboring cell of the serving cell where the UE is located. Therefore, according to actual use requirements, the UE can respectively measure different cells by using different measurement strategies so as to acquire different second measurement information. Thus, the positioning of the UE in different cells is achieved.
In an embodiment, the LMF obtains the second measurement information from the UE and/or the NG-RAN node.
In an embodiment, the LMF obtains the second measurement information in at least one of the following two manners.
Manner 1: the LMF sends second supplementary information to the UE, wherein the second supplementary information is used for the UE to perform measurement on SSBs of the serving cell and the neighboring cell; the LMF receives the second measurement information sent by the UE.
Manner 2: the UE performs a blind detection on the SSB of the neighbor cell; the LMF receives the second measurement information sent by the UE.
Specifically, when the UE performs blind detection on the SSB of the neighboring cell, the UE may carry a detection rule corresponding to the blind detection in the third supplementary information, so as to enable the LMF to identify a detection result.
Specifically, the detection rule that the UE performs the blind detection on the SSB of the neighboring cell may also be a detection rule determined through a negotiation between the LMF and the UE before the positioning.
In an embodiment, if the measurement result measured by the UE exceeds any one of the SSBs in the specified cell, the UE selects the one with the highest strength or the strength greater than the strength threshold from the specified cell as the SSB index of the specified cell in the second measurement information.
In an embodiment, the second measurement information includes one of the following: cell identification information of the specified cell, an SSB index of the specified cell, and RSRP and RSRQ of one or more signals in the SSB.
In this embodiment, a positioning method for a UE is provided, and the method can be applied in the mobile terminal which has been described above, and the content has been mentioned will not be repeated again.
Step S402: after initiating the relocation request, the NG-RAN node obtains third measurement information of the serving cell from the UE.
Step S404: the NG-RAN node determines a location of the UE according to the NG-RAN node information and the third measurement information, wherein the NG-RAN node information at least includes SSB beam polling information.
In an embodiment, the SB beam polling information at least comprises: a sub-carrier interval and cyclic prefix configuration for sending the SSB, the number of the SSB beams, the overall SSB index of the designated cell and a coverage angle of the SSB beam in a geographic coordinate system.
In an embodiment, the NG-RAN node information further comprises geographical position information of the NG-RAN node.
In an embodiment, the third measurement information at least includes RSRP and RSRQ of one or more signals in the SSB.
In an embodiment, if the measurement result measured by the UE exceeds any one of the SSBs in the specified cell, the UE selects the one with the highest strength or the strength greater than the strength threshold from the specified cell as the SSB index of the specified cell in the third measurement information.
It should be noted that, if the detection result detected by the UE exceeds any one of the SSBs in the serving cell, the UE selects the SSB with the highest strength in the serving cell as the SSB corresponding to the detection result. And send the third measurement information to the LMF based on the third measurement information corresponding to the SSB.
Through the description of the foregoing embodiments, a person skilled in the art may clearly understand that the methods mentioned in the foregoing embodiments may be implemented by software in addition to a necessary universal hardware platform, and definitely may also be implemented by hardware. However, in many cases, the former is a preferred implementation. Based on such understanding, the technical solutions of the present disclosure can be embodied in the form of a software product in nature or in part contributing to the related art. The computer software product is stored in a storage medium (such as a ROM/RAM, a magnetic disk, and an optical disk), and includes a plurality of instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, or a network device) to perform the method described in the embodiments of the present disclosure.
To better understand the solutions provided in the foregoing embodiments, the following scenario 1 is further provided to describe the foregoing embodiments in more details:
Scenario 1:
Based on a single cell, The UE is located by the UE.
Step 1: the NG-RAN node sends its own SSB polling configuration information to the LMF. Specifically, the sub-carrier interval is 120 KHz, a normal Cyclic Prefix (CP), the period of sending SSB is 5 ms, all SSB indexes are k1-k8, and kssb SSB beams are sent
Step 2: The UE initiates a positioning request.
Step 3: the UE sends a request for the first supplementary information to the LMF through an LPP or NRPP message.
Step 4: the LMF sends the SSB polling configuration information through the first supplementary information carried in the LPP or the NRPP message.
Step 5: after receiving the first assistance message, the UE measures the SSB beam of the serving cell where the UE is located, and acquires first measurement information including an SSB index being k3, and the first measurement information is obtained by performed a measurement, and in the first measurement information the measured PSS receiving energy and the received quality being RSRP1 and RSRQ1 respectively.
Step 6: the UE estimates a positioning result of the UE according to the SSB polling configuration information and the first measurement information.
Scenario 2:
Based on a single cell, the UE is located by LMF.
Step 1: the NG-RAN node sends its own SSB polling configuration information to the LMF. Specifically, the sub-carrier interval is 120 KHz, a normal Cyclic Prefix (CP) is used, the sending period of the SSB is 5 ms, all the SSB indexes are k1-k8, and kssb SSB beams are sent.
Step 2: the NG-RAN node initiates a positioning request to the UE.
Step 3: a UE measures a cell 1, and acquired second measurement information of the cell 1, and the second measurement information at least comprises: E-CID positioning with a positioning capability supporting using multi-beam SSB information; and at the time ti, the UE measures an SSB beam, SSB index k3, of a serving cell 1.
Step 4: the UE measures a cell 2, and acquired second measurement information of the cell 2, and the second measurement information at least comprise: E-CID positioning with the positioning capability supporting using multi-beam SSB information, and at the time t2, the UE measures an SSB beam, SSB index k5, of a serving cell 2.
Step 5: the UE sends the second measurement information of cell 1 and cell 2 to the LMF through an LPP or an NRPP message.
Step 6: the LMF estimates the location of the UE according to the SSB polling configuration information and the second measurement information of the cell 1 and the cell 2.
Scenario 3:
The UE is located through the NG-RAN node based on a single cell.
Step 1: The NG-RAN node initiates a positioning request to the UE.
Step 2: The UE measures an SSB beam of a serving cell where the UE is located, and acquires third measurement information including an SSB index of k3, and the measured PSS reception energy and reception quality are RSRP1 and RSRQ1 respectively.
Step 3: the UE sends to the NG-RAN node, via the preamble, third measurement information carrying an SSB index of k3, and the measured PSS receiving energy and received quality are RSRP1 and RSRQ1 respectively.
Step 4: the NG-RAN node estimates the positioning result of the UE according to its own SSB polling configuration information (namely, the sub-carrier interval is 120 KHz, a normal CP, a SSB sending period is 5 ms, all the SSB indexes k1-k8 of the designated cell are sent, and kssb SSB beams are sent), the geographical position of the NG-RAN node and the third measurement information.
It should be noted that the foregoing embodiments are merely examples, and any reasonable change or other form of example based on the idea of the foregoing embodiments belongs to the scope of protection of this embodiment.
Also provided in the present embodiment is a positioning apparatus for a UE. The apparatus is used for implementing the described embodiments and optional implementations, and what has been described will not be elaborated. The term “module”, as used hereinafter, is a combination of software and/or hardware capable of realizing a predetermined function. Although the apparatus described in the following embodiment is preferably implemented by software, implementation of hardware or a combination of software and hardware is also possible and conceived.
A first receiving module 1102, configured to receive, after initiating a positioning request, first supplementary information sent by the LMF; the first supplementary information at least comprises SSB beam polling information of a designated cell reported to the LMF by a NG-RAN node;
A measurement module 1104, configured to measure the specified cell and obtain first measurement information;
A first positioning module 1106, configured to determine the location of the UE according to the first measurement information and the first supplementary information.
It should be noted that the plurality of modules may be implemented through software or hardware. The latter may be implemented in the following manner, but is not limited thereto. All the modules are located in the same processor; or, the modules are located in different processors respectively in the form of any combination.
The present embodiment further provides another positioning apparatus for a UE. The apparatus is configured to implement the foregoing embodiments and optional implementations, and what has been described is not repeated herein. The term “module”, as used hereinafter, is a combination of software and/or hardware capable of realizing a predetermined function. Although the apparatus described in the following embodiment is preferably implemented by software, implementation of hardware or a combination of software and hardware is also possible and conceived.
A second receiving module 1202 configured to receive the SSB beam polling information reported by the NG-RAN node;
A acquisition module 1204 is configured to acquire a second measurement information of the specified cell after the positioning request is initiated;
The second location module 1206 is configured to determine a location of the UE according to the second measurement information and the SSB beam-polling information.
It should be noted that the plurality of modules may be implemented through software or hardware. The latter may be implemented in the following manner, but is not limited thereto. All the modules are located in the same processor; or, the modules are located in different processors respectively in the form of any combination.
The present embodiment further provides another positioning apparatus for a UE. The apparatus is configured to implement the foregoing embodiments and optional implementations, and what has been described is not repeated herein. The term “module”, as used hereinafter, is a combination of software and/or hardware capable of realizing a predetermined function. Although the apparatus described in the following embodiment is preferably implemented by software, implementation of hardware or a combination of software and hardware is also possible and conceived.
A third receiving module 1302, configured to obtain third measurement information of a serving cell from a UE after a positioning request is initiated;
A third positioning module 1304, configured to determine a location of the UE according to the NG-RAN node information and the third measurement information, where the NG-RAN node information at least includes: SSB beam-polling information.
It should be noted that the plurality of modules may be implemented through software or hardware. The latter may be implemented in the following manner, but is not limited thereto. All the modules are located in the same processor; or, the modules are located in different processors respectively in the form of any combination.
Embodiments of the present disclosure further provide a storage medium. The storage medium stores a computer program. The computer program is configured to execute the steps in any one of the method embodiments when running.
In an embodiment, in this embodiment, the storage medium may be configured to store a computer program for executing the following steps:
S1, after an initiated positioning request, a UE receiving first supplementary information sent by an LMF; wherein, the first supplementary information at least comprises: the SSB beam polling information of the designated cell reported by the NG-RAN node to the LMF.
S2, the UE measures the designated cell, and acquires first measurement information.
S3, according to the first measurement information and the first supplementary information, the UE determines the position of the UE.
Or,
S1, an LMF receives SSB beam polling information reported by an NG-RAN node.
S2, after initiating the positioning request, the LMF obtains second measurement information of the specified cell.
S3, according to the second measurement information and the SSB beam polling information, the LMF determines the position of the UE.
Or,
S1, after initiating the positioning request, the NG-RAN node obtains a third measurement information of the serving cell from the UE.
S2, the NG-RAN node determining the location of the UE according to the NG-RAN node information and the third measurement information, wherein the NG-RAN node information at least comprises: SSB beam-polling information.
In an embodiment, in this embodiment, the storage medium may include a plurality of media capable of storing a computer program, such as a Universal Serial Bus flash disk (USB disk), a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.
Embodiments of the present disclosure further provide an electronic apparatus, comprising a memory and a processor. The memory stores a computer program. The processor is configured to run the computer program to execute steps in any one of the method embodiments.
In an embodiment, the electronic apparatus can further comprise a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
In an embodiment, in this embodiment, the processor may be arranged to execute the following steps by means of a computer program:
S1, after an initiated positioning request, a UE receiving first supplementary information sent by an LMF; wherein, the first supplementary information at least comprises: the SSB beam polling information of the designated cell reported by the NG-RAN node to the LMF.
S2, the UE measures the designated cell, and acquires first measurement information.
S3, according to the first measurement information and the first supplementary information, the UE determines the position of the UE.
Or,
S1, an LMF receives SSB beam polling information reported by an NG-RAN node.
S2, after initiating the positioning request, the LMF obtains second measurement information of the specified cell.
S3, according to the second measurement information and the SSB beam polling information, the LMF determines the position of the UE.
Or,
S1, after initiating the positioning request, the NG-RAN node obtains third measurement information of the serving cell from the UE.
S2, the NG-RAN node determining the location of the UE according to the NG-RAN node information and the third measurement information, wherein the NG-RAN node information at least comprises: SSB beam-polling information.
Alternatively, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementations, and details are not repeatedly described herein in this embodiment.
Obviously, those skilled in the art should understand that the described modules or steps of the present disclosure can be realized by a common computing device, which can be concentrated on a single computing device or distributed on a network composed of a plurality of computing devices. Optionally, they may be implemented by program code executable by a computing device, and thus, they may be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described may be performed in an order different from that here, or they may be manufactured into one or more integrated circuit modules, or a plurality of modules or steps thereof may be manufactured into a single integrated circuit module. As such, the disclosure is not limited to a specific combination of hardware and software.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201811076343.0 | Sep 2018 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2019/105427 | 9/11/2019 | WO | 00 |
