# US 12,007,249 B2 · Data processing method and apparatus, vehicle-end device, cloud server, and electronic device

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- Number: US 12,007,249 B2
- Document ID: US12007249B2
- Status: Granted
- Kind: B2
- Application number: 17/889,816
- Filed: 2022-08-17
- Published: 2022-12-15
- Granted: 2024-06-11
- Earliest claimed: 2020-02-17
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Jiqiu Liu; Jianqin Liu; Mingchao Li
- Web page: https://patentgrep.com/patent/US12007249B2

## CPC

- G01C 21/3885: {Transmission of map data to client devices; Reception of map data by client devices}
- H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds}
- G01C 21/3833: {characterised by the source of data}
- H04W 4/025: {using location based information parameters}
- H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
- H04W 52/243: {taking into account interferences}
- H04W 52/283: {Power depending on the position of the mobile}
- H04W 52/38: TPC being performed in particular situations
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A data processing method includes initiating, to a cloud server, a first message used to access a roadside device or used to obtain signal transmit power-related information of static roadside equipment, receiving a second message fed back by the cloud server, where the second message is determined by the cloud server based on the first message and a prestored high-definition map, and the second message includes related information about accessing the roadside device by the vehicle-end device, or the signal transmit power-related information of the static roadside equipment, and accessing the roadside device based on the second message or determining a signal transmit power of the vehicle-end device based on the second message.

## Claims

### Claim 1

A device comprising:
at least one memory configured to store instructions; and
at least one processor coupled to the memory and configured to execute the instructions to cause the device to:
send, to a cloud server coupled to the device via a communication link, a first message requesting to access a roadside device and to obtain signal transmit power-related information of static roadside equipment;
receive, from the cloud server, a second message that is based on the first message and on a prestored high-definition map, wherein the second message comprises information regarding accessing the roadside device and the signal transmit power-related information; and
determine, based on the second message, a first signal transmit power of the device.

### Claim 2 (depends on 1)

The device of claim 1, wherein the signal transmit power-related information comprises an adjustment instruction for adjusting the first signal transmit power.

### Claim 3 (depends on 1)

The device of claim 1, wherein the at least one processor is further configured to execute the instructions to cause the vehicle end device to:
receive, from the cloud server, the prestored high-definition map; and
adjust, based on the prestored high-definition map, the first signal transmit power.

### Claim 4 (depends on 3)

The device of claim 3, wherein the at least one processor is further configured to execute the instructions to cause the device to:
extract, from the prestored high-definition map, attribute information of the static roadside equipment corresponding to location information of the device; and
further adjust, based on the attribute information, the first signal transmit power.

### Claim 5 (depends on 4)

The device of claim 4, wherein the attribute information comprises a correspondence between a signal coverage and a second signal transmit power, and wherein the at least one processor is further configured to execute the instructions to cause the device to:
make a determination that a location indicated by the location information is in the signal coverage;
determine, in response to the determination and from the correspondence, a second signal transmit power corresponding to the signal coverage; and
further adjust, based on the second signal transmit power, the first signal transmit power.

### Claim 6

A device comprising:
at least one memory configured to store instructions; and
at least one processor coupled to the memory and configured to execute the instructions to cause the device to:
send, to a cloud server coupled to the device via a communication link, a first message to access a roadside device;
receive, from the cloud server, a second message that is based on the first message and on a prestored high-definition map, wherein the second message comprises information about accessing the roadside device by the device; and
access the roadside device based on the second message.

### Claim 7

A cloud server comprising:
at least one memory configured to store instructions; and
at least one processor coupled to the memory and configured to execute the instructions to cause the apparatus to:
receive, from a device coupled to the cloud server via a communication link, a first message requesting to access a roadside device and to obtain signal transmit power-related information of a static roadside equipment;
generate, based on the first message and a prestored high-definition map, a second message comprising information regarding accessing the roadside device and the signal transmit power-related information; and
send the second message to the device.

### Claim 8 (depends on 7)

The cloud server of claim 7, wherein the signal transmit power-related information comprises an adjustment instruction for adjusting a first signal transmit power of the device.

### Claim 9 (depends on 8)

The cloud server of claim 8, wherein the first message comprises location information of the device, and wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
extract, from the prestored high-definition map, attribute information of the static roadside equipment corresponding to the location information; and
further generate, based on the attribute information, the second message comprising the adjustment instruction.

### Claim 10 (depends on 9)

The cloud server of claim 9, wherein the attribute information comprises a correspondence between a signal coverage and a second signal transmit power, and wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
make a determination that a location indicated by the location information is in the signal coverage;
determine, in response to the determination and from the correspondence, the second signal transmit power corresponding to the signal coverage; and
generate, based on the second signal transmit power, the adjustment instruction.

### Claim 11 (depends on 7)

The cloud server of claim 7, wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
obtain location information of a roadside facility, wherein the roadside facility comprises a roadside device or the static roadside equipment;
obtain first attribute information of the roadside facility, wherein the first attribute information comprises second attribute information of the roadside device or third attribute information of the static roadside equipment; and
construct the prestored high-definition map based on the location information, the first attribute information, and a preset vector map.

### Claim 12 (depends on 11)

The cloud server of claim 11, wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
add the roadside facility to the vector map as a node based on the location information; and
store the first attribute information as an attribute field of the node suitable for generating the prestored high-definition map.

### Claim 13 (depends on 11)

The cloud server of claim 11, wherein the second attribute information-comprises information for accessing the roadside device, and wherein the third attribute information comprises a correspondence between a signal coverage and a second signal transmit power.

### Claim 14 (depends on 11)

The cloud server of claim 11, wherein the at least one processor is further configured to execute the instructions to cause the apparatus to:
collect point cloud information or video information corresponding to a road, and extract the location information from the point cloud information or the video information; or
obtain the location information using a surveying and mapping device.

### Claim 15

A cloud server comprising:
at least one memory configured to store instructions; and
at least one processor coupled to the memory and configured to execute the instructions to cause the cloud server to:
receive, from a device coupled to the cloud server via a communication link, a first message requesting to access a roadside device;
generate, based on the first message and a prestored high-definition map, a second message comprising information regarding accessing the roadside device by the device, wherein the second message is configured to enable the device to access the roadside device; and
send the second message to the device.

### Claim 16 (depends on 15)

The cloud server of claim 15, wherein the at least one processor is further configured to execute the instructions to cause the cloud server to:
obtain location information of a roadside facility, wherein the roadside facility comprises the roadside device or the static roadside equipment;
obtain first attribute information of the roadside facility, wherein the first attribute information comprises second attribute information of the roadside device and third attribute information of the static roadside equipment; and
construct the prestored high-definition map based on the location information, the first attribute information, and a preset vector map.

### Claim 17 (depends on 16)

The cloud server of claim 16, wherein the at least one processor is further configured to execute the instructions to cause the cloud server to:
add the roadside facility to the vector map as a node based on the location information; and
store the first attribute information as an attribute field of the node to generate the prestored high-definition map.

### Claim 18 (depends on 16)

The cloud server of claim 16, wherein the second attribute information comprises information about accessing the roadside device, and wherein the third attribute information comprises a correspondence between a signal coverage and a signal transmit power.

### Claim 19 (depends on 16)

The cloud server of claim 16, wherein the at least one processor is further configured to execute the instructions to cause the cloud server to:
collect point cloud information or video information corresponding to a road; and
extract the location information from the point cloud information or the video information.

### Claim 20 (depends on 16)

The cloud server of claim 16, wherein the at least one processor is further configured to execute the instructions to cause the cloud server to obtain the location information using a surveying and mapping device.