Apparatus and method for sending vehicle broadcast information

• US 9,755,771 B2
• Filed: 01/27/2017
• Issued: 09/05/2017
• Est. Priority Date: 07/31/2014
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhang, Lixue
• Primary Examiner(s): PATEL, MAHENDRA R
• Application Number:
  US15/417,787
• Publication Number:
  US 20170141861A1
• Time in Patent Office: 221 Days
• Field of Search: 4554142, 342457, 701 60
• CPC Class Codes: H04H 20/55 for traffic information
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

The present invention provides a method for sending vehicle broadcast information broadcasts a message of first vehicle information at a first resource location of each cycle, where the message of the first vehicle information includes at least driving information of a vehicle that carries first UE; detects, at a second resource location of each cycle, a message of second vehicle information sent by second UE, where the message of the second vehicle information includes at least driving information and a first collision identifier that are of a vehicle that carries the second UE, and the first collision identifier is used to indicate that colliding interference exists at the first resource location of the first UE in each cycle.

Claims

1. An apparatus for sending vehicle broadcast information, comprising:

a transmitter, configured to broadcast a message of first vehicle information at a first resource location of each cycle, wherein the message of the first vehicle information comprises at least driving information of a vehicle that carries a first user equipment (UE);

a receiver, configured to detect, at a second resource location of each cycle, a message of second vehicle information sent by a second UE, wherein the message of the second vehicle information comprises at least driving information and a first collision identifier that are of a vehicle that carries the second UE, and the first collision identifier is used to indicate that colliding interference exists at the first resource location of the first UE in each cycle, wherein the colliding interference is caused between a broadcast message of the first UE and a broadcast message of another UE except the first UE and the second UE; and

a processor, configured to select an idle resource location at the second resource location, and use the selected idle resource location as the first resource location of the first UE in each cycle.

2. The apparatus according to claim 1, wherein the first resource location and the second resource location have different time domain locations.

3. The apparatus according to claim 1, wherein the processor is configured to:

add a non-idle identifier when the receiver detects, at the second resource location of each cycle, the message of the second vehicle information sent by the second UE, wherein the non-idle identifier is used to indicate that the second resource location is a non-idle resource location; and

/or

add an idle identifier when the receiver does not detect, at the second resource location of each cycle, the message of the second vehicle information sent by the second UE, wherein the idle identifier is used to indicate that the second resource location is an idle resource location.

4. The apparatus according to claim 1, wherein the processor is further configured to:

after the receiver detects, at the second resource location of each cycle, the message of the second vehicle information sent by the second UE, determine whether colliding interference of a broadcast message exists at the second resource location corresponding to the message of the second vehicle information; and

when the colliding interference of the broadcast message exists at the second resource location, add a second collision identifier to the message of the first vehicle information, and broadcast, at a first resource location of a next cycle, the message of the first vehicle information to which the second collision identifier is added, wherein the second collision identifier is used to indicate that the colliding interference of the broadcast message exists at the second resource location.

5. The apparatus according to claim 4, wherein the processor is configured to:

when it is determined that the message of the second vehicle information meets the following first condition and second condition;

the first condition is that the processor detects that interference at the second resource location exceeds an interference threshold, and

the second condition is that the processor determines that the message of the second vehicle information at the second resource location is successfully decoded, and the message of the second vehicle information at the second resource location cannot be decoded ink cycles after successful decoding, wherein k is a positive integer;

then

determine that the colliding interference of the broadcast message exists at the second resource location corresponding to the message of the second vehicle information.

6. The apparatus according to claim 5, wherein the processor is configured to:

when it is determined that the message of the second vehicle information meets any one of the following conditions;

a third condition;

the processor detects that the interference at the second resource location does not exceed the interference threshold,

a fourth condition;

the processor determines that the message of the second vehicle information at the second resource location is not successfully decoded, or

a fifth condition;

if the processor determines that the message of the second vehicle information at the second resource location is successfully decoded, the message of the second vehicle information at the second resource location is successfully decoded within at least one cycle of the k cycles after the successful decoding;

then determine that the colliding interference of the broadcast message does not exist at the second resource location corresponding to the message of the second vehicle information.

7. The apparatus according to claim 1, wherein the message of the first vehicle information further comprises an extension indication, and the extension indication is used to instruct the transmitter to broadcast the message of the first vehicle information at the first resource location of each cycle and at least one idle resource location.

8. The apparatus according to claim 1, wherein the driving information of the vehicle that carries the first UE comprises any one or a combination of the following parameters:

location information of the vehicle that carries the first UE, speed information of the vehicle that carries the first UE, direction information of the vehicle that carries the first UE, acceleration information of the vehicle that carries the first UE, or model information of the vehicle that carries the first UE.

9. A method for sending vehicle broadcast information, the method comprising:

broadcasting, by a first user equipment (UE), a message of first vehicle information at a first resource location of each cycle, wherein the message of the first vehicle information comprises at least driving information of a vehicle that carries the first UE;

detecting, by the first UE at a second resource location of each cycle, a message of second vehicle information sent by a second UE, wherein the message of the second vehicle information comprises at least driving information and a first collision identifier that are of a vehicle that carries the second UE, and the first collision identifier is used to indicate that colliding interference exists at the first resource location of the first UE in each cycle, wherein the colliding interference is caused between a broadcast message of the first UE and a broadcast message of another UE except the first UE and the second UE; and

selecting, by the first UE, an idle resource location at the second resource location, and using the selected idle resource location as the first resource location of the first UE in each cycle.

10. The method according to claim 9, wherein the first resource location and the second resource location have different time domain locations.

11. The method according to claim 9, wherein detecting, by the first UE at the second resource location of each cycle, the message of second vehicle information sent by the second UE comprises:

when the first UE detects, at the second resource location of each cycle, the message of the second vehicle information sent by the second UE, adding, by the first UE, a non-idle identifier, wherein the non-idle identifier is used to indicate that the second resource location is a non-idle resource location; and

/or

when the first UE does not detect, at the second resource location of each cycle, the message of the second vehicle information sent by the second UE, adding, by the first UE, an idle identifier, wherein the idle identifier is used to indicate that the second resource location is an idle resource location.

12. The method according to claim 9, after detecting, by the first UE at the second resource location of each cycle, the message of second vehicle information sent by the second UE, further comprising:

determining, by the first UE, whether colliding interference of a broadcast message exists at the second resource location corresponding to the message of the second vehicle information; and

when it is determined that the colliding interference of the broadcast message exists at the second resource location, adding a second collision identifier to the message of the first vehicle information, and broadcast, at a first resource location of a next cycle, the message of the first vehicle information to which the second collision identifier is added, wherein the second collision identifier is used to indicate that the colliding interference of the broadcast message exists at the second resource location.

13. The method according to claim 12, wherein determining, by the first UE, whether colliding interference of the broadcast message exists at the second resource location corresponding to the message of the second vehicle information comprises:

when the first UE determines that the message of the second vehicle information meets the following first condition and second condition;

the first condition is that the first UE detects that interference at the second resource location exceeds an interference threshold, and

the second condition is that the first UE determines that the message of the second vehicle information at the second resource location is successfully decoded, and the message of the second vehicle information at the second resource location cannot be decoded ink cycles after successful decoding, wherein k is a positive integer;

then

determining, by the first UE, that the colliding interference of the broadcast message exists at the second resource location corresponding to the message of the second vehicle information.

14. The method according to claim 13, wherein determining, by the first UE, that the colliding interference of the broadcast message does not exist at the second resource location corresponding to the message of the second vehicle information comprises:

when the first UE determines that the message of the second vehicle information meets any one of the following conditions;

a third condition;

the first UE detects that the interference at the second resource location does not exceed the interference threshold,

a fourth condition;

the first UE determines that the message of the second vehicle information at the second resource location is not successfully decoded, or

a fifth condition;

if the first UE determines that the message of the second vehicle information at the second resource location is successfully decoded, the message of the second vehicle information at the second resource location is successfully decoded within at least one cycle of the k cycles after the successful decoding;

then

determining, by the first UE, that the colliding interference of the broadcast message does not exist at the second resource location corresponding to the message of the second vehicle information.

15. The method according to claim 9, wherein the message of the first vehicle information further comprises an extension indication, and the extension indication is used to instruct the first UE to broadcast the message of the first vehicle information at the first resource location of each cycle and at least one idle resource location.

16. The method according to claim 9, wherein the driving information of the vehicle that carries the first UE comprises any one or a combination of the following parameters:

location information of the vehicle that carries the first UE, speed information of the vehicle that carries the first UE, direction information of the vehicle that carries the first UE, acceleration information of the vehicle that carries the first UE, or model information of the vehicle that carries the first UE.