Message processing method, in-vehicle terminal, and base station
First Claim
1. A message processing method, the method comprising:
- generating, by a first in-vehicle terminal, a safety message, wherein the safety message comprises message content and a message type;
determining, by the first in-vehicle terminal according to the message content and the message type, a priority value corresponding to the safety message;
sending, by the first in-vehicle terminal according to the priority value corresponding to the safety message, the safety message by using a vehicle direct communication physical (VDC PHY) layer or separately by using a cellular physical (cellular PHY) layer and the VDC PHY layer, so that a base station and/or a second in-vehicle terminal receive/receives the safety message;
wherein the base station and the first in-vehicle terminal each pre-establish a vehicle direct communication-radio bearer (VDC-RB);
wherein after generating, by the first in-vehicle terminal, the safety message, and before sending, by the first in-vehicle terminal according to the priority value corresponding to the safety message, the safety message by using the VDC PHY layer or separately by using the cellular PHY layer and the VDC PHY layer, the method further comprises;
adding, by the first in-vehicle terminal, obtained location information and speed information to the safety message by using an Intelligent Transportation System Protocol (ITSP) layer; and
transparently transmitting, by the first in-vehicle terminal, the safety message from the ITSP layer to a Media Access Control (MAC) layer by using a Packet Data Convergence Protocol layer (PDCP) layer and a Radio Link Control layer (RLC) layer; and
sending, by the first in-vehicle terminal according to the priority value corresponding to the safety message, the safety message by using a vehicle direct communication physical VDC PHY layer or separately by using a cellular physical cellular PHY layer and the VDC PHY layer comprises;
triggering, by the first in-vehicle terminal, the MAC layer to send, according to the location information, the speed information, and the priority value corresponding to the safety message, the safety message by using the VDC PHY layer or separately by using the cellular PHY layer and the VDC PHY layer.
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Accused Products
Abstract
The present disclosure provides a message processing method, an in-vehicle terminal, and a base station. The method executed by a first in-vehicle terminal includes: first, generating a safety message, where the safety message includes message content and a message type; then, determining, according to the message content and the message type, a priority value corresponding to the safety message; finally, sending, according to the priority value corresponding to the safety message, the safety message by using a vehicle direct communication physical VDC PHY layer or separately by using a cellular physical cellular PHY layer and a VDC PHY layer, so that a base station and/or a second in-vehicle terminal receive/receives the safety message, and the first in-vehicle terminal can send, under a preset delay requirement, the safety message to another in-vehicle terminal in a distance range that needs to be covered by the safety message.
7 Citations
14 Claims
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1. A message processing method, the method comprising:
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generating, by a first in-vehicle terminal, a safety message, wherein the safety message comprises message content and a message type; determining, by the first in-vehicle terminal according to the message content and the message type, a priority value corresponding to the safety message; sending, by the first in-vehicle terminal according to the priority value corresponding to the safety message, the safety message by using a vehicle direct communication physical (VDC PHY) layer or separately by using a cellular physical (cellular PHY) layer and the VDC PHY layer, so that a base station and/or a second in-vehicle terminal receive/receives the safety message; wherein the base station and the first in-vehicle terminal each pre-establish a vehicle direct communication-radio bearer (VDC-RB); wherein after generating, by the first in-vehicle terminal, the safety message, and before sending, by the first in-vehicle terminal according to the priority value corresponding to the safety message, the safety message by using the VDC PHY layer or separately by using the cellular PHY layer and the VDC PHY layer, the method further comprises; adding, by the first in-vehicle terminal, obtained location information and speed information to the safety message by using an Intelligent Transportation System Protocol (ITSP) layer; and transparently transmitting, by the first in-vehicle terminal, the safety message from the ITSP layer to a Media Access Control (MAC) layer by using a Packet Data Convergence Protocol layer (PDCP) layer and a Radio Link Control layer (RLC) layer; and sending, by the first in-vehicle terminal according to the priority value corresponding to the safety message, the safety message by using a vehicle direct communication physical VDC PHY layer or separately by using a cellular physical cellular PHY layer and the VDC PHY layer comprises; triggering, by the first in-vehicle terminal, the MAC layer to send, according to the location information, the speed information, and the priority value corresponding to the safety message, the safety message by using the VDC PHY layer or separately by using the cellular PHY layer and the VDC PHY layer. - View Dependent Claims (2, 3, 4)
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5. A message processing method, the method comprising:
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receiving, by a base station, a safety message by using a cellular physical (cellular PHY) layer and/or a vehicle direct communication physical (VDC PHY) layer; triggering, by the base station, a Media Access Control (MAC) layer to identify the safety message and send the safety message to an Intelligent Transportation System Protocol (ITSP) layer; triggering, by the base station, the ITSP layer to determine, according to a message type in the safety message and location information in the safety message, whether to forward the safety message, and determine a forwarding area or a forwarding server address corresponding to a case in which the safety message needs to be forwarded; wherein when the base station receives the safety message by using the cellular PHY layer and the VDC PHY layer, the method further comprises; triggering, by the base station, the MAC layer to perform combination processing on the safety messages with a same sequence number that are separately received by using the cellular PHY layer and the VDC PHY layer; and triggering, by the base station, the MAC layer to identify the safety message and send the safety message to an ITSP layer comprises; triggering, by the base station, the MAC layer to identify a safety message obtained after the combination processing and sending the safety message obtained after the combination processing to the ITSP layer. - View Dependent Claims (6, 7, 8, 9)
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10. An in-vehicle terminal, comprising:
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a memory storing a program; and a processor, configured to execute the program, the program comprising instructions that, when executed by the processor, cause the in-vehicle terminal to; generate a safety message, wherein the safety message comprises message content and a message type; determine, according to the message content and the message type, a priority value corresponding to the safety message; and send, according to the priority value corresponding to the safety message, the safety message by using a vehicle direct communication physical (VDC PHY) layer or separately by using a cellular physical (cellular PHY) layer and the VDC PHY layer, so that a base station and/or a second in-vehicle terminal receive/receives the safety message; wherein the base station and the in-vehicle terminal each pre-establish a vehicle direct communication-radio bearer (VDC-RB), wherein the VDC-RB comprises; a Transmission Control Protocol (TCP)/Internet Protocol (IP) layer, used to run the TCP/IP, an Intelligent Transportation System Protocol (ITSP) layer, used to run the Intelligent Transportation System Protocol (ITSP), a Media Access Control (MAC) layer, used to configure an Intelligent Transportation System Protocol-common transport channel (ITS-CCH), wherein the ITS-CCH is used to; receive the safety message sent by the VDC PHY layer of the in-vehicle terminal, delete a transmitter identifier of the safety message, and send the safety message to the Radio Link Control layer (RLC) layer, and receive the safety message transmitted by the RLC layer and select, according to the location information, the speed information, and the priority value corresponding to the safety message, the VDC PHY layer to send the safety message, or the cellular PHY layer and the VDC PHY layer to send the safety message; the RLC layer, used to send the safety message to a Packet Data Convergence Protocol (PDCP) layer in a transparent transmission mode, the PDCP layer, used to send the safety message to the ITSP layer in the transparent transmission mode, the cellular PHY layer, used to perform cellular communication with the base station, and the VDC PHY layer, used to perform direct communication with the base station or another in-vehicle terminal. - View Dependent Claims (11, 12, 13, 14)
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Specification