WO2017113207A1 - 一种业务消息传输方法、第一终端及网络侧设备 - Google Patents

一种业务消息传输方法、第一终端及网络侧设备 Download PDF

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Publication number
WO2017113207A1
WO2017113207A1 PCT/CN2015/099921 CN2015099921W WO2017113207A1 WO 2017113207 A1 WO2017113207 A1 WO 2017113207A1 CN 2015099921 W CN2015099921 W CN 2015099921W WO 2017113207 A1 WO2017113207 A1 WO 2017113207A1
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Prior art keywords
service
service message
radio bearer
message
specific radio
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PCT/CN2015/099921
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English (en)
French (fr)
Inventor
肖潇
华尧
李明超
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华为技术有限公司
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Priority to PCT/CN2015/099921 priority Critical patent/WO2017113207A1/zh
Publication of WO2017113207A1 publication Critical patent/WO2017113207A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a service message transmission method, a first terminal, and a network side device.
  • V2X communication refers to direct data transmission between a vehicle to a vehicle (V2V), a vehicle to a communication infrastructure (V2I), or a vehicle to a pedestrian to a vehicle (V2P) via wireless communication technology. Transfer and information interaction. V2X communication provides and supports applications and messaging related to road traffic safety aspects.
  • the European Telecommunications Standards Institute (ETSI) and the Society of Automotive Engineers (SAE) have defined the V2X service message content and V2X service message format transmitted in V2X communication, V2X.
  • the business message mainly includes some information related to the driving dynamics of the vehicle, such as the speed of the vehicle, the direction of travel, the latitude and longitude (the location), the acceleration (acceleration and deceleration), etc., as well as information about the surrounding road environment, such as accidents, road construction, traffic facilities failures. Wait.
  • Vehicles and vehicles, vehicles and infrastructure, and V2X business message interactions between vehicles and handheld terminals help drivers or pedestrians to make judgments about surrounding traffic conditions and possible dangerous situations, so as to make corresponding preventive measures. It is possible to avoid accidents.
  • the V2X service message is a non-IP service data.
  • the V2X service message can be divided into different message types according to the V2X communication application scenario.
  • the V2X service messages of different message types have different Quality of Service (QoS) requirements.
  • QoS Quality of Service
  • the QoS requirement of the V2X service message refers to the value that the V2X service message needs to reach on the QoS parameter.
  • the V2X service message corresponds to different QoS levels, that is, the V2X service message with the same QoS requirement is divided into one class.
  • the same type of V2X service message corresponds to a QoS, etc.
  • the QoS class can also be used to indicate the QoS class corresponding to the V2X service message by using a QoS Class Identifier (QCI).
  • QCI QoS Class Identifier
  • the QoS parameters of the V2X service message include a priority, a packet delay budget (PDB), a packet error rate (PELR), a transmission distance (Range), and a transmission frequency ( Frequency) and so on.
  • the standard has not defined how to map V2X service messages to radio bearers, thereby implementing V2X service message transmission while ensuring QoS requirements of V2X service messages.
  • a service message transmission method, a first terminal, and a network side device are provided to implement V2X service message transmission.
  • a method for transmitting a service message includes:
  • the first terminal is configured with a service-specific radio bearer for service message transmission, and the service message includes one or a combination of: a vehicle and vehicle V2V service message, a vehicle and communication infrastructure V2I service message, and a vehicle and pedestrian hand-held terminal V2P service message. ;
  • the first terminal maps the service message to the service-specific radio bearer corresponding thereto;
  • the first terminal sends the service message through a PC5 interface.
  • the service-specific radio bearer satisfies a quality of service QoS requirement of the service message corresponding thereto.
  • the first terminal is configured to be a service-specific radio bearer for service message transmission, including:
  • the first terminal configures a service-specific radio bearer for service message transmission according to the quality of service QoS requirement of the service message.
  • the first terminal is configured to perform service-specific wireless for service message transmission.
  • Hosting including:
  • the first terminal receives a service-specific radio bearer configured by the network side device for service message transmission.
  • the first terminal receives a service-specific radio bearer configured by the network side device for service message transmission, including :
  • the first terminal receives a mapping template sent by the network side device, where the mapping template includes a service-specific radio bearer for service message transmission.
  • the method further includes:
  • the service request message is used to request a service-specific radio bearer for service message transmission, and the service request message is one or a combination of the following: a message type, a priority, a delay, a priority bit rate, and a guarantee of the service message.
  • Bit rate GBR Bit rate
  • the service-specific radio bearer includes the service message and the The mapping relationship of the service-specific radio bearers.
  • the first terminal, the first terminal, the service message is mapped to the service-specific radio bearer corresponding thereto, including :
  • the first terminal maps the service message to the service-specific radio bearer corresponding to the service, according to the inter-layer primitive of the service message and the mapping relationship between the service message and the service-specific radio bearer, the service message
  • the inter-layer primitives include the priority of the service message and/or the message type of the service message.
  • Configuration information including one or a combination of the following:
  • the method further includes:
  • the first terminal processes the service message by using the PDCP entity and the RLC entity, and mapping the processed service message to the logical channel;
  • the first terminal generates a media access control MAC protocol data unit PDU including the service message and the logical channel identifier;
  • the first terminal sends a MAC PDU including the service message and the logical channel identifier through a PC5 interface.
  • the MAC PDU further includes a service identifier, where the service identifier is used to indicate that the MAC PDU includes a service message. .
  • the service identifier is a logical channel identifier of the service message or a destination layer 2 identifier.
  • the first terminal generates a MAC PDU including the service message and the logical channel identifier, including :
  • the first terminal generates a MAC service data unit SDU including the service message
  • the first terminal encapsulates the MAC SDU in a MAC, where the MAC PDU includes at least one MAC SDU, and the packet header of the MAC PDU includes a service message corresponding to each MAC SDU in the at least one MAC SDU.
  • Logical channel identification is a code that specifies the MAC SDU in the at least one MAC SDU.
  • the method further includes:
  • the first terminal allocates a transmission resource for a logical channel of the service message according to the service-specific wireless configuration information corresponding to the service message.
  • the QoS requirement of the service message includes one or a combination of the following:
  • a second aspect of the present invention provides a service message transmission method, including:
  • the network side device configures a service-specific radio bearer for service message transmission, and the service message is transmitted on a PC5 interface, where the service message includes one or a combination of: a vehicle and a vehicle V2V service message, a vehicle and a communication infrastructure V2I service. Messages, vehicles and pedestrians hand-held terminal V2P service messages;
  • the network side device sends the configured service-specific radio bearer for service message transmission to the first terminal.
  • the service-specific radio bearer satisfies a quality of service QoS requirement of the service message corresponding thereto.
  • the network side device is configured to configure a service-specific radio bearer for service message transmission, including:
  • the network side device configures a service-specific radio bearer for service message transmission according to the quality of service QoS requirement of the service message.
  • the network side device the service corresponding to the service message
  • the dedicated radio bearer is sent to the first terminal, including:
  • the network side device sends a mapping template to the first terminal, where the mapping template includes a service-specific radio bearer for service message transmission.
  • the method further includes:
  • the service request message is used to request a service-specific radio bearer for service message transmission, and the service request message is one or a combination of the following: a message type, a priority, a delay, and a Priority bit rate PBR and guaranteed bit rate GBR.
  • the service-specific radio bearer includes the service message and the The mapping relationship of the service-specific radio bearers.
  • the service-specific radio bearer for service message transmission includes Configuration information, the configuration information including one or a combination of the following:
  • the QoS requirement of the service message includes one or a combination of the following:
  • the network side device includes a base station; or the network The side device includes a base station and a proximity service function entity ProSe Function.
  • a first terminal provided by the embodiment of the present invention includes:
  • a processing unit configured to configure a service-specific radio bearer for service message transmission, where the service message includes one or a combination of: a vehicle and vehicle V2V service message, a vehicle and communication infrastructure V2I service message, and a vehicle and pedestrian hand-held terminal V2P a service message; mapping the service message to the service-specific radio bearer corresponding thereto;
  • a sending unit configured to send, by using the PC5 interface, the service message processed by the processing unit.
  • the service-specific radio bearer satisfies a quality of service QoS requirement of the service message corresponding thereto.
  • the processing unit is configured to be dedicated to service for service message transmission.
  • the line is carried, it is specifically used to:
  • a service-specific radio bearer for service message transmission is configured according to the quality of service QoS requirement of the service message.
  • the first terminal further includes:
  • a receiving unit configured to receive a service-specific radio bearer configured for network information transmission by the network side device
  • the processing unit is specifically configured to: when configuring a service-specific radio bearer for service message transmission:
  • the service-specific radio bearer for the service message transmission received by the receiving unit from the network side device is configured as a service-specific radio bearer for service message transmission.
  • the receiving unit when receiving the service-specific radio bearer configured for the service message transmission by the network side device, Specifically used for:
  • mapping template sent by the network side device, where the mapping template includes a service-specific radio bearer for service message transmission.
  • the sending unit is further configured to:
  • the service request message is used to request a service-specific radio bearer for service message transmission, and the service request message is one or a combination of the following: a message type, a priority, a delay, a priority bit rate, and a guarantee of the service message.
  • Bit rate GBR Bit rate
  • the service-specific radio bearer includes the service message and the The mapping relationship of the service-specific radio bearers.
  • the processing unit is configured to map the service message to the service-specific corresponding thereto When charging wirelessly, it is specifically used to:
  • mapping the service message to the service-specific radio bearer corresponding to the service-specific radio bearer according to the mapping between the inter-layer primitive of the service message and the service-specific radio bearer, and the inter-layer primitive of the service message A priority of the service message and/or a message type of the service message is included.
  • the service specific radio bearer corresponding to the service message includes Configuration information, the configuration information including one or a combination of the following:
  • the sending unit When the sending unit sends the service message processed by the processing unit through the PC5 interface, the sending unit is specifically configured to:
  • the MAC PDU further includes a service identifier, where the service identifier is used to indicate that the MAC PDU includes a service message. .
  • the service identifier is a logical channel identifier of the service message or a destination layer 2 identifier.
  • the processing unit when the processing unit generates a MAC PDU that includes the service message and the logical channel identifier, the processing unit is specifically configured to:
  • the MAC SDU is encapsulated in a MAC, where the MAC PDU includes at least one MAC SDU, and the header of the MAC PDU includes a logical channel identifier corresponding to a service message included in each MAC SDU of the at least one MAC SDU.
  • the processing unit is further configured to:
  • the QoS requirement of the service message includes one or a combination of the following:
  • a network side device provided by the embodiment of the present invention includes:
  • a processing unit configured to configure a service-specific radio bearer for service message transmission, where the service message is transmitted on a PC5 interface, where the service message includes one or a combination of: vehicle and vehicle V2V service message, vehicle and communication infrastructure V2I service messages, V2P service messages of vehicles and pedestrians;
  • a sending unit configured to send, by the processing unit, the service-specific radio bearer for service message transmission to the first terminal.
  • the service-specific radio bearer satisfies a quality of service QoS requirement of the service message corresponding thereto.
  • the processing unit is configured to:
  • a service-specific radio bearer for service message transmission is configured according to the quality of service QoS requirement of the service message.
  • the sending unit is specifically configured to:
  • mapping template includes a service-specific radio bearer for service message transmission.
  • the network side device further includes:
  • a receiving unit configured to receive a service request message sent by the first terminal
  • the service request message is used to request a service-specific radio bearer for service message transmission, and the service request message is one or a combination of the following: a message type, a priority, a delay, a priority bit rate, and a guarantee of the service message.
  • Bit rate GBR Bit rate
  • the service-specific radio bearer includes the service message and the The mapping relationship of the service-specific radio bearers.
  • the service specific radio bearer for service message transmission includes Configuration information, the configuration information including one or a combination of the following:
  • the QoS requirement of the service message includes one or a combination of the following:
  • the network side device includes a base station; or the network The side device includes a base station and a proximity service function entity ProSe Function.
  • a V2X service-dedicated radio bearer for V2X service message transmission is configured, and a V2X service message is mapped to its corresponding service-specific radio bearer (that is, a V2X service-dedicated radio bearer), thereby implementing The first terminal sends a V2X service message through the PC5 interface.
  • the QoS requirement of the non-IP V2X service message is ensured at the same time, that is, the technical solution provided by the embodiment of the present invention can implement the transmission of the non-IP V2X service message with multiple QoS requirements.
  • FIG. 1 is a schematic diagram of a V2X communication scenario according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a D2D communication network defined by a 3GPP standard according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for transmitting a service message according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a PC5 air interface protocol stack according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a V2X communication process according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a V2X communication process according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a process of mapping a service message to its corresponding service-specific radio bearer according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a V2X communication process according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a V2X communication process according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart of a method for transmitting a service message according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a first terminal according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a first terminal according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • the embodiment of the present invention provides a service message transmission method, a first terminal, and a network side device, where the service message refers to a V2X service message, that is, the service message includes a vehicle and a vehicle V2V service message, and a vehicle V2I service messages with the communication infrastructure, vehicle and pedestrian hand-held terminal V2P service messages to implement V2X service message transmission.
  • the method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.
  • V2X communication means that the vehicle and the vehicle V2V, the vehicle and communication infrastructure V2I, or the vehicle and the pedestrian handheld terminal V2P directly perform data transmission and information interaction through wireless communication technologies.
  • V2X communication provides and supports applications and messaging related to road traffic safety aspects.
  • the V2X service message transmitted in the V2X communication is a non-IP service data.
  • Different types of V2X service messages have different QoS requirements according to different V2X communication application scenarios, and V2X messages with the same QoS requirements belong to the same QoS class.
  • the V2X service message type, the QoS requirement of the V2X service message, and the QoS class to which the V2X service message belongs are as shown in Table 1.
  • QoS parameters include Priority, Packet Delay Budget (PDB), Error Error and Packet Loss Rate (PELR), Maximum Transmission Frequency (MAX Frequency), and Transmission.
  • the QoS requirement of the V2X service message is that the V2X service message reaches a certain value on each QoS parameter.
  • different types of V2X service messages are classified into QoS levels 1 to 8, and QCI indicates QoS Class Identifier.
  • the types of V2X service messages involved in Table 1 include: Pre-Crash Warning, Longitudinal Collision Risk Warning (LCRW), Intersection Collision Risk Warning (ICRW), and roads. Road Hazard Signaling (RHS), In-vehicle signage (IVS), and Electronic Toll Collection (ETC).
  • the QoS parameter, the QoS requirement of the V2X service message, and the QoS class of the V2X service message are not limited to the content in Table 1.
  • the technical solution provided by the embodiment of the present invention has universality. Sex, can also be used in other possible examples besides the table one.
  • V2X service message transmission is essentially a device-to-device communication (D2D) communication service.
  • the technical solution provided by the embodiment of the present invention can be applied to the V2X communication scenario shown in FIG. 1.
  • the terminal may be a terminal within the network coverage or a terminal outside the network coverage.
  • the terminal may be a vehicle terminal, a communication infrastructure (Infrastructure), a pedestrian handheld terminal (Pedestrian), and a road for performing V2X communication.
  • the side-side unit (RSU), etc.; the network-side device mainly refers to a network node such as a base station and a ProSe Function, and the ProSe Function is a network node located at the core network side of the LTE system. It is mainly used for terminal authorization and parameter configuration for D2D communication.
  • FIG. 2 is a Third Generation Partnership Project (3 rd Generation Partnership Project, 3GPP ) network architecture defined in the relevant standards D2D communication.
  • 3GPP Third Generation Partnership Project
  • the newly added network elements in the network architecture shown in FIG. 2 include a ProSe Function and a ProSe Application Server, and the newly added interfaces include PC1 and PC2. , PC3, PC4, PC5.
  • the PC3 interface is an interface for the terminal to exchange information with the ProSe Function
  • the PC5 is an interface for performing D2D communication between the terminals;
  • the ProSe Function mainly performs the functions of service authorization and parameter configuration of the D2D communication.
  • the terminal that needs to perform D2D communication requests the authorization of the D2D communication service from the ProSe Function through the PC3 interface, and acquires the relevant D2D communication parameter, and the ProSe Function authorizes and performs the D2D communication service to the terminal through the PC3 interface.
  • Parameter configuration The terminals perform D2D communication through the PC5 interface.
  • HSS Home Subscriber Server
  • SLP Service Logic Processing
  • MME Mobile Management Entity
  • S/PGW Service Gateway (Serving) Gateway
  • SGW Packet Data Network gateway
  • PDN-GateWay Packet Data Network gateway
  • existing D2D communication supports IP data transmission and ARP signaling transmission.
  • IP data transmission the IP quintuple in the IP packet header must be filtered to map the IP data to the radio bearer to implement IP data transmission.
  • ARP signaling it does not have the same V2X service message. Multiple QoS requirements. Therefore, existing D2D communication does not support the transmission of non-IP V2X service messages with multiple QoS requirements.
  • a V2X service-dedicated radio bearer is configured for V2X service message transmission, and a V2X service message is mapped to a corresponding V2X service-dedicated radio bearer, thereby implementing V2X service message transmission, and simultaneously
  • the QoS requirement of the non-IP V2X service message is ensured, that is, the technical solution provided by the embodiment of the present invention can implement the transmission of the non-IP V2X service message with multiple QoS requirements.
  • the service message refers to a V2X service message, that is, the service message includes a vehicle and vehicle V2V service message, a vehicle and communication infrastructure V2I service message, and a vehicle and pedestrian hand-held terminal V2P service message.
  • a service-specific radio bearer refers to a V2X service-dedicated radio bearer for V2X service message transmission.
  • the first terminal refers to the transmitting end of the V2X service message transmission
  • the second terminal refers to the receiving end of the V2X service message transmission.
  • an embodiment of the present invention provides a service message transmission method, including:
  • the first terminal is configured to be a service-specific radio bearer for service message transmission, and the service message includes one or a combination of the following: a vehicle and vehicle V2V service message, a vehicle and communication infrastructure V2I service message, and a vehicle and pedestrian hand-held terminal V2P service message. ;
  • the first terminal maps the service message to a service-specific radio bearer corresponding thereto.
  • the first terminal sends a service message by using a PC5 interface.
  • the V2X service includes different types of service messages, and different types of service messages may have different QoS requirements, that is, different types of service messages may belong to different QoS levels.
  • the first terminal configures different service-specific radio bearers for service messages with different QoS requirements to ensure that the service-specific radio bearers meet the QoS requirements of the service messages corresponding thereto.
  • the service message with the same QoS requirement can be mapped to the same service-specific radio bearer, which is equivalent to “classifying” the service message, that is, having the same QoS requirement.
  • Business messages are divided into one category.
  • the service-specific radio bearer is dedicated to the transmission of the service message corresponding thereto, and the service-specific radio bearer is different from the D2D radio bearer (SLRB) in the existing D2D communication.
  • the QoS requirement of the service message refers to the value that the service message needs to reach on the QoS parameter
  • the QoS parameters include, but are not limited to, priority, delay, error rate, packet loss rate, and priority bit rate. (Prioritized Bit Rate, PBR), Guaranteed Bit Rate (GBR), transmission distance, and transmission frequency.
  • the method shown in FIG. 3 can be used to configure the service-specific radio bearer for service message transmission, and map the service message to the service-specific radio bearer corresponding thereto, thereby implementing the service message. Transmission ensures the QoS requirements of service messages.
  • the service-specific radio bearer configured by the first terminal includes a mapping relationship between the service message and the service-specific radio bearer, and is used by the first terminal to map the service message to the service-specific radio bearer corresponding thereto.
  • a method for configuring a service-specific radio bearer for service message transmission by a first terminal includes the following two types:
  • the first type the first terminal receives the service-specific radio bearer sent by the network side device for service message transmission.
  • the second type the first terminal configures a service-specific radio bearer for the service message transmission according to the QoS requirement of the service message.
  • the first terminal receives the mapping template sent by the network side device, and the mapping template includes the second type: the first terminal receives the service-specific radio bearer sent by the network side device and is used for service message transmission.
  • the first terminal sends a service request message to the network side device.
  • the service request message is used to request a service-specific radio bearer corresponding to the service message, and the service request message includes one or a combination of the following information: a message type of the service message, a priority of the service message, and a delay of the service message.
  • the service-specific radio bearer corresponding to the service message includes configuration information, and the configuration information includes but is not limited to the following information:
  • Logical Channel Logical Channel Identifier (LCID), Service-Specific Radio Bearer Indication, Service-Specific Radio Bearer Identification, Packet Data Convergence Protocol (PDCP) Entity, and Radio Link Control (Radio Link Control, RLC) entity.
  • LCID Logical Channel Identifier
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • the configuration information of the different service-specific radio bearers is independent of each other, and the service-specific radio bearer indicates a radio bearer type identifier, which is used to indicate that the service-specific radio bearer is a radio bearer for service message transmission, instead of D2D radio bearer SLRB for D2D communication other than V2X communication.
  • the identity of the service-specific radio bearer is used to distinguish different service-specific radio bearers.
  • the service message is sent according to the configuration information of the service-specific radio bearer corresponding to the service message.
  • the specific process is as follows:
  • the first terminal processes the service message by using the PDCP entity and the RLC entity indicated in the configuration information, and maps the processed service message to the logical channel indicated in the configuration information;
  • the first terminal generates a MAC Protocol Data Unit (PDU) including a service message and a logical channel identifier;
  • PDU MAC Protocol Data Unit
  • the first terminal sends the MAC PDU including the service message and the logical channel identifier to the second terminal through the PC5 interface.
  • the method for the first terminal to generate a MAC PDU including a service message and a logical channel identifier includes:
  • the first terminal generates a MAC Service Data Unit (SDU) including a service message;
  • SDU MAC Service Data Unit
  • the first terminal encapsulates the MAC SDU in a MAC protocol data unit (PDU), the MAC PDU includes at least one MAC SDU, and the packet header of the MAC PDU includes a service message corresponding to each MAC SDU included in the at least one MAC SDU.
  • PDU MAC protocol data unit
  • the logical channel identifiers are arranged in the order of the at least one MAC SDU in the MAC PDU, so that the receiving end can identify which MAC of the logical channel identifier in the packet header corresponds to.
  • Service messages included in the SDU are arranged in the order of the at least one MAC SDU in the MAC PDU, so that the receiving end can identify which MAC of the logical channel identifier in the packet header corresponds to.
  • the foregoing method provided by the embodiment of the present invention relates to a PC5 air interface protocol stack for D2D communication.
  • the PC5 air interface protocol stack includes four protocol layers: a PDCP layer, an RLC layer, a MAC layer, and a physical layer (Physical Laye, PHY).
  • the foregoing method provided by the embodiment of the present invention specifically includes: after mapping a service message to its corresponding service-specific radio bearer, performing security and security related processing such as encryption and integrity protection on the PDCP layer (ie, the PDCP entity),
  • the RLC layer ie, the RLC entity
  • performs operations such as splitting/combining the service message to generate a MAC SDU including a service message to support the PC5 interface radio resource.
  • the related processing of the service message by the PDCP entity and the RLC entity is the same as the existing D2D communication, and is not described here.
  • the MAC layer receives the MAC SDU containing the service message, and different MAC SDUs may not correspond.
  • the same service-specific radio bearer can know the logical channel corresponding to the MAC SDU according to the configuration information of the service-specific radio bearer corresponding to the MAC SDU, map the MAC SDU to its corresponding logical channel, and then perform scheduling, multiplexing, and the like on the MAC SDU.
  • the MAC PDU delivered by the MAC layer is sent to the second terminal through the PC5 interface at the PHY layer.
  • the first terminal allocates a transmission resource to the logical channel of the service message according to the configuration information of the service-specific radio bearer corresponding to the service message.
  • the resource allocated according to the logical channel can determine the data size of the service message that can be transmitted by the logical channel, and encapsulate the service message of the corresponding data size in the MAC PDU, thereby satisfying the QoS requirement of the service message corresponding to the logical channel.
  • the MAC layer allocates resources for the logical channel corresponding to the service message, and may adopt a logical channel prioritization (LCP) processing method in the LTE MAC protocol, and the method depends on the internal implementation of the terminal itself, in the embodiment of the present invention. No specific restrictions.
  • LCP logical channel prioritization
  • the data processed by each protocol layer will be forwarded to the next protocol layer for corresponding processing; after receiving the MAC PDU sent by the transmitting end, the receiving end processes the MAC PDU opposite to the processing process of the transmitting end. I will not repeat them here.
  • the first terminal sends the MAC PDU including the logical channel identifier corresponding to the service message and the service message to the second terminal by using the available transmission resource and through the PC5 interface.
  • the first terminal needs to process the MAC PDU by using a modulation, coding, or the like of the PHY layer before sending the MAC PDU.
  • the existing D2D communication technology is not described here.
  • the base station configures a number of "D2D communication resource pools" on the LTE system licensed spectrum.
  • the transmission resource in the “D2D communication resource pool” configured by the base station on the licensed spectrum of the LTE system is used to prevent the D2D communication of the terminal from interfering with the cellular communication in the LTE system.
  • the terminal can exchange the information with the base station, and the base station allocates the transmission resource for the service message transmission by the base station; and can also independently select the transmission resource for the service message transmission in the “D2D communication resource pool” in a freely competitive manner. .
  • the system On some dedicated spectrums other than the licensed spectrum of the LTE system, the system also configures several “D2D communication resource pools”, so that terminals outside the coverage of the base station can also perform D2D communication by using resources in the “D2D communication resource pool”. Terminals outside the coverage of the base station independently select transmission resources for service message transmission in the "D2D communication resource pool” in a freely competitive manner.
  • the MAC PDU generated by the first terminal may include only the V2X service message (that is, the service message in the above, to distinguish the V2X service message and the D2D service message, where the V2X service message is used), and may only include the D2D service.
  • the message here, the D2DD2D service message refers to the D2D service message except the V2X service message
  • the second terminal needs to distinguish the V2X service. Messages and D2D business messages.
  • the MAC PDU generated by the first terminal may further include a service identifier, where the service identifier is used to indicate that the MAC PDU includes a V2X service message.
  • the service identifier may be a logical channel identifier or a Destination Layer-2 Identity of the V2X service message.
  • the service identifier may be a logical channel identifier of a V2X service message.
  • the logical channel identifier occupied by the D2D service message ranges from "00001 to 01010", and the logical channel identifier in the range of "01011 to 11110" is reserved for possible function expansion.
  • the value range of the logical channel identifier corresponding to the V2X service message may be set to “00001 to 01010”.
  • the service identifier can be identified by the destination layer 2.
  • the destination layer 2 identifier is defined in the embodiment of the present invention, and may also be referred to as a service-specific group identifier, and is used to indicate that the MAC PDU carrying the destination layer 2 identifier only includes a V2X service message, for example, setting the destination layer 2 identifier to “111111111111111111”.
  • the value range of the logical channel identifier occupied by the V2X service message is not limited.
  • the first terminal sends the MAC PDU carrying the destination layer 2 identifier to the second terminal, and the second terminal detects that the MAC PDU carries the destination layer 2 identifier, and determines that the MAC PDU only includes the V2X service message, and the header of the MAC PDU Medium
  • the logical channel identifiers are the logical channel identifiers corresponding to the V2X service messages, and the V2X service messages are obtained.
  • the service identifier is used to indicate that the MAC PDU includes a V2X service message, and the foregoing service identifier is not limited to the form provided in the embodiment of the present invention, and may also adopt other forms.
  • the first terminal maps the service message to the corresponding service-specific wireless according to the mapping relationship between the inter-layer primitives and service messages of the service message (that is, the V2X service message) and the service-specific radio bearer.
  • the inter-layer primitives of the bearer, service message include, but are not limited to, the priority of the service message and/or the message type of the service message.
  • the service message generated by the first terminal carries the V2X related parameter, for example, the V2X related parameter includes the priority of the service message, the message type of the service message, and the like, and the V2X related parameter is delivered to the PDCP layer along with the service message by means of an inter-layer primitive or a message header. And perform related operations.
  • the first terminal may detect whether the service-specific radio bearer for the service message transmission has been configured by matching the inter-layer primitive of the service message and the service-specific radio bearer corresponding to the configured service message. If the first terminal has configured the service-specific radio bearer for the service message transmission, the service message is mapped to its corresponding service-specific radio bearer according to the mapping relationship between the service message and the service-specific radio bearer without reconfiguration. The transmission of the service message is implemented.
  • the first terminal If the first terminal detects that the service-specific radio bearer for the service message transmission is not configured, the first terminal configures a service-specific radio bearer for the service message transmission. Specifically, the first terminal may configure a service-specific radio bearer for the service message transmission, or may obtain a service-specific radio bearer for the service message transmission from the network side.
  • the service-specific radio bearer used for the service message transmission includes: a mapping relationship between the service message and the service-specific radio bearer, and configuration information of the service-specific radio bearer, where the configuration information of the service-specific radio bearer includes but is not limited to the following information: a logical channel , logical channel identifier, service-specific radio bearer indication, service-specific radio bearer identifier, PDCP entity, and RLC entity.
  • the following describes the V2X service process performed by the first terminal and the second terminal.
  • the first terminal itself configures a service-specific radio bearer for service message transmission.
  • the first terminal may be a terminal outside the coverage of the base station.
  • the V2X communication process between the first terminal and the second terminal is as follows:
  • the first terminal configures a service-specific radio bearer for service message transmission.
  • the first terminal configures a service-specific radio bearer for the service message transmission according to the QoS requirement of the service message.
  • the first terminal may separately configure corresponding service-specific radio bearers for different service messages with different QoS requirements according to the QoS requirements of all possible service messages; the first terminal may also be divided into multiple service messages with different QoS requirements. Configure corresponding service-specific radio bearers.
  • the service-specific radio bearer for service message transmission is stored in the chip or integrated circuit inside the first terminal as a factory setting of the first terminal.
  • the first terminal maps the service message to its corresponding service-specific radio bearer, and performs related operations to generate a MAC PDU including a service channel and a logical channel identifier corresponding to the service message.
  • the first terminal sends, by using the PC5 interface, a MAC PDU that includes a logical channel identifier corresponding to the service message and the service message to the second terminal.
  • the second terminal performs a related operation on the received MAC PDU.
  • the second terminal receives, by using the PC5 interface, the MAC PDU sent by the first terminal, where the MAC PDU includes a service message and a logical channel identifier corresponding to the service message, and the second terminal receives the MAC PDU through the PC5 interface at the PHY layer.
  • the PHY layer delivers the MAC PDU to the MAC layer for processing. This process is the same as the MAC layer processing on the first terminal side, and is not described here.
  • the second terminal identifies the logical channel identifier as a service-specific logical channel according to the logical channel identifier in the MAC PDU header, that is, the MAC SDU corresponding to the logical channel identifier includes a service message, and the second terminal establishes a logical channel corresponding to the logical channel identifier. , PDCP entity and RLC entity.
  • this step may be omitted.
  • the second terminal maps the service message to its corresponding logical channel, and forwards the service message to its corresponding PDCP entity and the RLC entity for processing.
  • the process is opposite to the response process of the first terminal side. Let me repeat.
  • the second terminal delivers the processed service message to the V2X application to complete the reception of the service message.
  • the second terminal only delivers the service message mapped to the service-dedicated logical channel to the V2X application, and does not submit it to the IP layer/ARP layer and the application layer, thereby ensuring that the second terminal receives the service message through the PC5 interface.
  • the first terminal acquires a service-specific radio bearer for service message transmission from the network side device.
  • the first terminal may be a terminal within the coverage of the base station, and the network side device includes a base station and a ProSe Function.
  • the interaction process between the first terminal, the second terminal, and the network side device is as follows:
  • the first terminal sends a service request message to the neighboring service function entity.
  • the V2X Service Request message is used to request to obtain a service-specific radio bearer for service message transmission.
  • the service request message includes a service-related parameter of the service message (refers to a related parameter of the V2X service), and the service-related parameters include, but are not limited to, a message type of the service message, a priority of the service message, and a delay requirement of the service message.
  • the first terminal obtains a service-related parameter of the service message by using a V2X Service Access Point (V-SAP), and the service-related parameter exists in the form of a message header or an inter-layer primitive, and the V-SAP is the first terminal.
  • V-SAP V2X Service Access Point
  • the service request message may also include a QoS requirement for the service message.
  • the first terminal determines the QoS requirement of the service message according to the requirement of the V2X application and/or the service-related parameter of the service message, for example, determining the QoS requirement of the service message on the QoS parameters such as delay, PBR, GBR, etc., and the first terminal determines the QoS requirement.
  • the above QoS requirements of the service message are carried in the service request message and sent to the neighboring service function entity.
  • the service request message further includes a service indication, which is used to indicate that the service requested by the first terminal is a V2X service, and is not a D2D service other than the V2X service.
  • the first terminal sends a service request message to the neighboring service function entity through the PC3 interface shown in FIG. 2.
  • the message type of the service request message is not limited in the embodiment of the present invention. For example, it may be an Open Mobile Alliance Device Management (OMA DM) message.
  • OMA DM Open Mobile Alliance Device Management
  • the neighboring service function entity determines a QoS requirement of the service message, and a mapping template corresponding to the QoS requirement.
  • the neighboring service function entity determines the QoS requirement of the service message according to the service related parameter of the service message, and further determines the mapping template corresponding to the QoS requirement of the service message.
  • the mapping template corresponding to the QoS requirement is used to indicate a mapping relationship between the QoS requirement and the V2X related parameter, and the mapping template includes a set of V2X related parameters of all service messages having the same QoS requirement. If the service-related parameter of the service message is the same as the service-related parameter of the mapping template, the service message is matched with the mapping template, and the mapping template is the mapping template corresponding to the service message.
  • the neighboring service function entity pre-stores the QoS requirements corresponding to different V2X service messages and the mapping templates corresponding to different QoS requirements.
  • the neighboring service function entity sends a service response message to the base station.
  • the service response message includes a QoS requirement of the service message and a mapping template corresponding to the QoS requirement.
  • the transmission path that the neighboring service function entity sends the service response message to the base station by using the network architecture shown in FIG. 2 is: the neighboring service function entity sends the service response message to the home subscriber server through the PC4 interface (Home Subscriber Server, The HSS sends the service response message to the Mobility Management Entity (MME) through the S6a interface, and the MME sends the V2X service response message to the base station through the S1 interface.
  • the neighboring service function entity sends the service response message to the home subscriber server through the PC4 interface (Home Subscriber Server
  • the HSS sends the service response message to the Mobility Management Entity (MME) through the S6a interface
  • MME Mobility Management Entity
  • the base station configures a service-specific radio bearer for service message transmission according to the QoS requirement of the service message and the mapping template corresponding to the QoS requirement.
  • the service-specific radio bearer configured by the base station for service message transmission meets the QoS requirement of the service message.
  • the specific content included in the service-specific radio bearer is not described here.
  • the base station sends the service-specific radio bearer for service message transmission to the first terminal.
  • the base station sends the service-specific radio bearer for the service message transmission to the first terminal by using a Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • the base station sends the mapping template corresponding to the QoS requirement of the service message to the first terminal as the configuration information of the service-specific radio bearer.
  • the first terminal maps the service message to its corresponding service-specific radio bearer, and performs related operations to generate a MAC PDU including a service channel and a logical channel identifier corresponding to the service message.
  • the first terminal sends, by using the PC5 interface, a MAC PDU that includes a logical channel identifier corresponding to the service message and the service message to the second terminal.
  • the second terminal performs a related operation on the received MAC PDU.
  • Figure 7 represents V2X-RB n
  • the service-specific radio bearer is configured, and n indicates a different V2X service-specific radio bearer identifier.
  • the service-related parameters of the service message are matched with the mapping template one by one.
  • the service message is mapped to the V2X-RBn corresponding to the mapping template n , that is, steps S606 to S608 are performed; if the service-related parameters of the service message and the existing mapping are performed, If none of the templates is successfully matched, steps S601 to S608 are performed.
  • the first terminal acquires a service-specific radio bearer for service message transmission from the network side device.
  • the first terminal may be a terminal within the coverage of the base station, and the network side device is a base station.
  • the interaction process between the first terminal, the second terminal, and the base station is as follows:
  • the first terminal sends a service request message to the base station.
  • the V2X Service Request message is used to request to obtain a service-specific radio bearer for service message transmission.
  • the service request message includes service-related parameters of the service message, and the service-related parameters include, but are not limited to, the message type of the service message, the priority of the service message, and the delay of the service message.
  • V-SAP V2X service access point
  • the V2X service access point (V-SAP) obtains service-related parameters of the service message, and the V2X related parameter exists in the form of a message header or an inter-layer primitive, and the V-SAP is the V2X application layer of the first terminal. Interface between the PDCP layer that interfaces with PC5.
  • the V2X service request message includes a QoS requirement of the service message.
  • the first terminal determines the QoS requirement of the service message according to the requirement of the V2X application and/or the service related parameter of the service message, for example, determining the QoS requirement of the service message on the QoS parameters such as delay, PBR, GBR, etc., and the first terminal determines the QoS requirement.
  • the QoS requirements of the service message are carried in the service request message and sent to the base station.
  • the V2X service request message further includes a service indication, which is used to indicate that the service requested by the first terminal is a V2X service, and is not a D2D service other than the V2X service.
  • the first terminal sends a V2X service request message to the base station by using an RRC message.
  • the base station configures a service-specific radio bearer for service message transmission.
  • the base station determines the identifier of the service-specific radio bearer corresponding to the service-related parameter of the service message, and the base station determines the QoS requirement of the service message according to the service-related parameter of the service message, and configures the configuration information of the service-specific radio bearer that satisfies the QoS requirement of the service message. .
  • the message type of the service message is Pre-crash Warning
  • the base station determines that the identifier of the service-specific radio bearer corresponding to the Pre-crash Warning is 1, and the base station configures the service according to the QoS requirement corresponding to the message type Pre-crash Warning.
  • the configuration information of the service-specific radio bearer of the private radio bearer identified by 1.
  • the base station sends a service-specific radio bearer for service message transmission to the first terminal.
  • the base station sends the service-specific radio bearer for service message transmission to the first terminal by using an RRC message.
  • the first terminal maps the service message to its corresponding service-specific radio bearer, and performs related operations to generate a MAC PDU including a service channel and a logical channel identifier corresponding to the service message.
  • the first terminal sends, by using the PC5 interface, a MAC PDU that includes a logical channel identifier corresponding to the service message and the service message to the second terminal.
  • the second terminal performs a related operation on the received MAC PDU.
  • the first terminal acquires a service-specific radio bearer for service message transmission from the network side device.
  • the first terminal may be a terminal within the coverage of the base station, and the network side device is a base station.
  • the interaction process between the first terminal, the second terminal, and the base station is as follows:
  • the base station configures a service-dedicated radio bearer for service message transmission.
  • the base station configures corresponding service-specific radio bearers for different service messages with different QoS requirements according to the QoS requirements of all possible service messages.
  • the base station sends, by using a system message broadcast, a service-specific radio bearer for service message transmission to the first terminal.
  • the base station sends a service-specific radio bearer corresponding to different service messages with different QoS requirements by using a system message broadcast. All terminals in the coverage of the base station can receive system messages of the base station.
  • system message of the base station may further include a mapping template in the description (2).
  • the first terminal maps the service message to its corresponding service-specific radio bearer, and performs related operations to generate a MAC PDU including a service channel and a logical channel identifier corresponding to the service message.
  • the first terminal sends, by using the PC5 interface, a MAC PDU that includes a logical channel identifier corresponding to the service message and the service message to the second terminal.
  • the second terminal performs a related operation on the received MAC PDU.
  • the first terminal by using the service message transmission method provided by the embodiment of the present invention, maps the V2X service message to its corresponding V2X service-dedicated radio bearer, thereby implementing the V2X service message transmission, and ensuring the QoS requirement of the non-IP V2X service message.
  • the embodiment of the present invention provides a service message transmission method, including:
  • the network side device is configured to use a service-specific radio bearer for service message transmission, and the service is eliminated.
  • the information is transmitted on the PC5 interface, and the service message includes one or a combination of: a vehicle and vehicle V2V service message, a vehicle and communication infrastructure V2I service message, a vehicle and a pedestrian hand-held terminal V2P service message;
  • the network side device sends the configured service-specific radio bearer for service message transmission to the first terminal.
  • the service message refers to a V2X service message
  • the service-specific radio bearer refers to a V2X service-dedicated radio bearer.
  • the service-specific radio bearer configured by the network side device satisfies the quality of service QoS requirement of the corresponding service message.
  • the QoS requirement of the service message refers to the value that the service message needs to reach on the QoS parameter.
  • the QoS parameters include but are not limited to: priority, delay, error and packet loss rate PELR, transmission distance, and transmission frequency.
  • the service-specific radio bearer includes a mapping relationship between the service message and the service-specific radio bearer.
  • the network side device configures a mapping relationship between the service message and the service-specific radio bearer according to the quality of service QoS requirement of the service message.
  • the service-specific radio bearer used for service message transmission includes configuration information including but not limited to one or a combination of the following:
  • Logical channel Logical channel, logical channel identifier, mapping template, service-specific radio bearer indication, service-specific radio bearer identification, packet data convergence protocol PDCP entity, and radio link control RLC entity.
  • the network side device sends a mapping template to the first terminal, where the mapping template includes a mapping relationship between the service message and the service-specific radio bearer.
  • the network side device receives the service request message sent by the first terminal; the service request message is used to request the service specific radio bearer for the service message transmission, and the service request message is one or a combination of the following: The message type of the service message, the priority of the service message, and the delay of the service message.
  • the network side device includes a base station; or the network side device includes a base station and a neighboring service function entity ProSe Function.
  • network side device side For details of the network side device side, refer to the first terminal side method embodiment, and details are not described herein again.
  • the first terminal can be obtained by the method provided by the network side embodiment provided by the embodiment of the present invention.
  • the V2X service-specific radio bearer for V2X service message transmission and then mapping the V2X service message to its corresponding V2X service-dedicated radio bearer, thereby realizing the transmission of the V2X service message and ensuring the QoS requirement of the non-IP V2X service message.
  • the embodiment of the present invention further provides a first terminal, where the first terminal may adopt the method provided by the embodiment corresponding to FIG. 3, and as shown in FIG. 11, the first terminal 1100 includes: a processing unit 1101. And a transmitting unit 1102 and a receiving unit 1103.
  • the processing unit 1101 is configured to configure a service-specific radio bearer for service message transmission, and the service message includes one or a combination of: a vehicle and a vehicle V2V service message, a vehicle and communication infrastructure V2I service message, and a V2P service of the vehicle and the pedestrian handheld terminal. Message; mapping the service message to its corresponding service-specific radio bearer;
  • the sending unit 1102 is configured to send, by using the PC5 interface, a service message processed by the processing unit 1101.
  • the service-specific radio bearer satisfies the quality of service QoS requirement of the corresponding service message.
  • processing unit 1101 when the processing unit 1101 is configured to use a service-specific radio bearer for service message transmission, the processing unit 1101 is specifically configured to:
  • a service-specific radio bearer for service message transmission is configured according to the quality of service QoS requirement of the service message.
  • the receiving unit 1103 is configured to:
  • the processing unit 1101 is specifically configured to: when configuring a service-specific radio bearer for service message transmission:
  • the service-specific radio bearer for receiving the service message received by the receiving unit 1103 from the network side device is configured as a service-dedicated radio bearer for service message transmission.
  • the receiving unit 1103 when receiving the service-specific radio bearer configured for the service message transmission by the network side device, the receiving unit 1103 is specifically configured to:
  • mapping template sent by the network side device, where the mapping template includes a service for service message transmission Dedicated wireless bearer.
  • the sending unit 1102 is further configured to:
  • the service request message is used to request a service-specific radio bearer for service message transmission, and one or a combination of the service request message: message type, priority, delay, priority bit rate PBR, and guaranteed bit rate GBR of the service message.
  • the service-specific radio bearer includes a mapping relationship between the service message and the service-specific radio bearer.
  • processing unit 1101 maps the service message to the service-specific radio bearer corresponding thereto, the processing unit 1101 is specifically configured to:
  • the service message is mapped to the service-specific radio bearer corresponding thereto, and the inter-layer primitive of the service message includes the priority and/or service of the service message.
  • the message type of the message is the mapping between the inter-layer primitives of the service message and the service-specific radio bearer.
  • the service-specific radio bearer corresponding to the service message includes configuration information, and the configuration information includes one or a combination of the following:
  • Logical channel Logical channel, logical channel identification, service specific radio bearer indication, service specific radio bearer identification, packet data convergence protocol PDCP entity and radio link control RLC entity.
  • processing unit 1101 maps the service message to the service-specific radio bearer corresponding thereto, the processing unit 1101 is further configured to:
  • the sending unit 1102 When the sending unit 1102 sends the service message processed by the processing unit 1101 through the PC5 interface, the sending unit 1102 is specifically configured to:
  • the MAC PDU including the service message and the logical channel identifier generated by the processing unit 1101 is transmitted through the PC5 interface.
  • the MAC PDU further includes a service identifier, where the service identifier is used to indicate that the MAC PDU includes a service message.
  • the service identifier is a logical channel identifier of the service message or a destination layer 2 identifier.
  • the processing unit 1101 when the processing unit 1101 generates a MAC PDU including a service message and a logical channel identifier, the processing unit 1101 is specifically configured to:
  • the MAC SDU is encapsulated in the MAC, and the MAC PDU includes at least one MAC SDU.
  • the header of the MAC PDU includes a logical channel identifier corresponding to the service message included in each MAC SDU of the at least one MAC SDU.
  • processing unit 1101 is further configured to:
  • the QoS requirement of the service message includes one or a combination of the following:
  • the embodiment of the present invention further provides a network side device, and the network side device may adopt the method provided by the embodiment corresponding to FIG. 10, as shown in FIG. 12, the network side device 1200 includes: a processing unit 1201. And a transmitting unit 1202 and a receiving unit 1203.
  • the processing unit 1201 is configured to configure a service-specific radio bearer for service message transmission, and the service message is transmitted on the PC5 interface, and the service message includes one or a combination of the following: a vehicle and a vehicle V2V service message, a vehicle and a communication infrastructure V2I service message. , vehicle and pedestrian handheld terminal V2P service messages;
  • the sending unit 1202 is configured to send, by the processing unit 1201, a service-specific radio bearer for service message transmission to the first terminal.
  • the service-specific radio bearer satisfies the quality of service QoS requirement of the corresponding service message.
  • processing unit 1201 is configured to:
  • the sending unit 1202 is specifically configured to:
  • mapping template includes a service-specific radio bearer for service message transmission.
  • the receiving unit 1203 is configured to:
  • the service request message is used to request a service-specific radio bearer for service message transmission, and one or a combination of the service request message: message type, priority, delay, priority bit rate PBR, and guaranteed bit rate GBR of the service message.
  • the service-specific radio bearer includes a mapping relationship between the service message and the service-specific radio bearer.
  • the service-specific radio bearer used for service message transmission includes configuration information, and the configuration information includes one or a combination of the following:
  • Logical channel Logical channel, logical channel identification, mapping relationship, service-specific radio bearer indication, service-specific radio bearer identification, packet data convergence protocol PDCP entity, and radio link control RLC entity.
  • the QoS requirement of the service message includes one or a combination of the following:
  • the network side device includes a base station; or the network side device includes a base station and a neighboring service function entity ProSe Function.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present application is essentially or a part contributing to the prior art or all of the technical solution.
  • a portion may be embodied in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) Performing all or part of the steps of the various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
  • the embodiment of the present invention further provides a first terminal, where the first terminal may adopt the method provided by the embodiment corresponding to FIG. 3, and may be the same device as the first terminal shown in FIG.
  • the first terminal 1300 includes: a processor 1301, a transmitter 1302, a bus 1303, a memory 1304, and a receiver 1305, wherein:
  • the processor 1301, the transmitter 1302, the memory 1304, and the receiver 1305 are mutually connected by a bus 1303; the bus 1303 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (extended industry standard architecture). Referred to as EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 13, but it does not mean that there is only one bus or one type of bus.
  • the processor 1301 corresponds to the processing unit 1101 in FIG. 11, the transmitter 1302 corresponds to the transmitting unit 1102 in FIG. 11, and the receiver 1305 corresponds to the receiving unit 1103 in FIG.
  • the first terminal 1300 further includes a memory 1304 for storing programs and the like.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 1304 may include a random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage.
  • the processor 1301 executes the application stored in the memory 1304 to implement the V2X service message transmission method as described above.
  • the embodiment of the present invention further provides a network side device, and the network side device may adopt the method provided by the embodiment corresponding to FIG. 10, and may be the same device as the network side device shown in FIG.
  • the network side device 1400 includes: a processor 1401, a transmitter 1402, a bus 1403, a memory 1404, and a receiver 1405, where:
  • the processor 1401, the transmitter 1402, the memory 1404, and the receiver 1405 are connected to each other through a bus 1403; the bus 1403 may be a PCI bus or an EISA bus or the like.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 14, but it does not mean that there is only one bus or one type of bus.
  • the processor 1401 corresponds to the processing unit 1201 in FIG. 12, the transmitter 1402 corresponds to the sending unit 1202 in FIG. 12, and the receiver 1405 corresponds to the receiving unit 1203 in FIG. 12.
  • the network side device 1400 further includes a memory 1404 for storing programs and the like.
  • the program can include program code, the program code including computer operating instructions.
  • Memory 1404 may include RAM and may also include non-volatile memory, such as at least one disk storage.
  • the processor 1401 executes the application stored in the memory 1404 to implement the V2X message transmission method as described above.

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Abstract

一种业务消息传输方法、第一终端及网络侧设备,以实现V2X业务消息传输。。本发明方法包括:第一终端配置用于业务消息传输的业务专用无线承载,业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;第一终端将业务消息映射到与其对应的业务专用无线承载;第一终端通过PC5接口发送业务消息。

Description

一种业务消息传输方法、第一终端及网络侧设备 技术领域
本发明涉及无线通信领域,尤其涉及一种业务消息传输方法、第一终端及网络侧设备。
背景技术
V2X通信是指,车辆与车辆(Vehicle to Vehicle,V2V)、车辆与通信基础设施(Vehicle to Infrastructure,V2I)或者车辆与行人手持终端(Vehicle to Pedestrian,V2P)之间通过无线通信技术直接进行数据传输和信息交互。V2X通信提供并支持与道路交通安全方面相关的应用和消息传输。
欧洲电信标准学会(European Telecommunications Standards Institute,ETSI)和美国机动车工程师学会(Society of Automotive Engineers,SAE)等相关标准组织已对V2X通信中传输的V2X业务消息内容和V2X业务消息格式进行定义,V2X业务消息主要包括一些与车辆行驶动态相关的信息,例如车速、行驶方向、经纬度(所处位置)、加速度(加减速)等,以及周围道路环境相关的信息,例如事故、道路施工、交通设施故障等。车辆与车辆、车辆与基础设施以及车辆与手持终端之间通过进行V2X业务消息交互,帮助驾驶员或行人对周围的交通状况和可能出现的危险情况做出判断,以便作出相应的预防措施,尽可能地避免事故的发生。
与长期演进(Long Term Evolution,LTE)***所支持的因特网协议(Internet Protocol,IP)业务数据不同,V2X业务消息是一种非IP业务数据。根据V2X通信应用场景的不同,可将V2X业务消息划分为不同的消息类型,不同消息类型的V2X业务消息具有不同的服务质量(Quality of Service,QoS)需求。V2X业务消息的QoS需求是指V2X业务消息在QoS参数上所需达到的取值,按照QoS需求的不同将V2X业务消息对应不同的QoS等级,即将具有相同QoS需求的V2X业务消息划分为一类,同一类V2X业务消息对应一个QoS等 级,也可以多类V2X业务消息对应一个QoS等级,可以用QoS等级标识(QoS Class Identifier,QCI)来指示V2X业务消息对应的QoS等级。V2X业务消息的QoS参数包括优先级(Priority)、数据包时延预算(Packet Delay Budget,PDB)、误码及丢包率(Packet Error Loss Rate,PELR)、传输距离(Range)、传输频率(Frequency)等。
目前,标准中还未定义如何将V2X业务消息映射到无线承载,进而实现V2X业务消息传输,同时保证V2X业务消息的QoS需求。
发明内容
本发明实施例提供的一种业务消息传输方法、第一终端及网络侧设备,用以实现V2X业务消息传输。
第一方面,本发明实施例提供的一种业务消息传输方法,包括:
第一终端配置用于业务消息传输的业务专用无线承载,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
所述第一终端将所述业务消息映射到与其对应的所述业务专用无线承载;
所述第一终端通过PC5接口发送所述业务消息。
结合第一方面,在第一种可能的实现方式中,所述业务专用无线承载满足其所对应的所述业务消息的服务质量QoS需求。
结合第一方面、第一方面的第一种可能的实现方式,在第一方面的第二种可能的实现方式中,所述第一终端配置用于业务消息传输的业务专用无线承载,包括:
所述第一终端根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
结合第一方面、第一方面的第一种可能的实现方式,在第一方面的第三种可能的实现方式中,所述第一终端配置用于业务消息传输的业务专用无线 承载,包括:
所述第一终端接收网络侧设备配置的用于业务消息传输的业务专用无线承载。
结合第一方面的第三种可能的实现方式,在第一方面的第四种可能的实现方式中,所述第一终端接收网络侧设备配置的用于业务消息传输的业务专用无线承载,包括:
所述第一终端接收所述网络侧设备发送的映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
结合第一方面的第三种或第四种可能的实现方式,在第一方面的第五种可能的实现方式中,还包括:
所述第一终端向所述网络侧设备发送业务请求消息;
所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
结合第一方面、第一方面的第一种至第五种任一可能的实现方式,在第一方面的第六种可能的实现方式中,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
结合第一方面的第六种可能的实现方式,在第一方面的第七种可能的实现方式中,所述第一终端将所述业务消息映射到与其对应的所述业务专用无线承载,包括:
所述第一终端根据所述业务消息的层间原语和所述业务消息与业务专用无线承载的映射关系,将所述业务消息映射到与其对应的所述业务专用无线承载,所述业务消息的层间原语包括所述业务消息的优先级和/或所述业务消息的消息类型。
结合第一方面、第一方面的第一种至第七种任一可能的实现方式,在第一方面的第八种可能的实现方式中,所述业务消息对应的所述业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
逻辑信道、所述逻辑信道标识、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
结合第一方面的第八种可能的实现方式,在第一方面的第九种可能的实现方式中,还包括:
所述第一终端通过所述PDCP实体和所述RLC实体对所述业务消息进行处理,将处理后的所述业务消息映射到所述逻辑信道;
所述第一终端生成包括所述业务消息和所述逻辑信道标识的媒体接入控制MAC协议数据单元PDU;
所述第一终端通过PC5接口发送所述业务消息,包括:
所述第一终端通过PC5接口发送包括所述业务消息和所述逻辑信道标识的MAC PDU。
结合第一方面的第九种可能的实现方式,在第一方面的第十种可能的实现方式中,所述MAC PDU还包括业务标识,所述业务标识用于指示所述MAC PDU包括业务消息。
结合第一方面的第十种可能的实现方式,在第一方面的第十一种可能的实现方式中,所述业务标识为业务消息的逻辑信道标识或目的地层2标识。
结合第一方面的第九种可能的实现方式,在第一方面的第十二种可能的实现方式中,所述第一终端生成包括所述业务消息和所述逻辑信道标识的MAC PDU,包括:
所述第一终端生成包括所述业务消息的MAC业务数据单元SDU;
所述第一终端将所述MAC SDU封装在MAC中,所述MAC PDU包括至少一个MAC SDU,所述MAC PDU的包头中包括所述至少一个MAC SDU中每个MAC SDU包括的业务消息对应的逻辑信道标识。
结合第一方面的第九种可能的实现方式,在第一方面的第十三种可能的实现方式中,还包括:
所述第一终端根据所述业务消息对应的所述业务专用无线的配置信息,为所述业务消息的逻辑信道分配传输资源。
结合第一方面的第一种可能的实现方式,在第一方面的第十四种可能的实现方式中,所述业务消息的QoS需求包括以下之一或组合:
优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
第二方面,本发明实施例提供的一种业务消息传输方法,包括:
网络侧设备配置用于业务消息传输的业务专用无线承载,所述业务消息在PC5接口上传输,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
所述网络侧设备将配置的所述用于业务消息传输的业务专用无线承载发送给第一终端。
结合第二方面,在第一种可能的实现方式中,所述业务专用无线承载满足其所对应的所述业务消息的服务质量QoS需求。
结合第二方面或第二方面的第一种可能的实现方式,在第二方面的第二种可能的实现方式中,网络侧设备配置用于业务消息传输的业务专用无线承载,包括:
所述网络侧设备根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
结合第二方面或第二方面的第一种或第二种可能的实现方式,在第二方面的第三种可能的实现方式中,所述网络侧设备将所述业务消息对应的所述业务专用无线承载发送给第一终端,包括:
所述网络侧设备向所述第一终端发送映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
结合第二方面、第二方面的第一种至第三种任一可能的实现方式,在第二方面的第四种可能的实现方式中,还包括:
所述网络侧设备接收所述第一终端发送的业务请求消息;
所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、 优先比特率PBR和保证比特率GBR。
结合第二方面、第二方面的第一种至第四种任一可能的实现方式,在第二方面的第五种可能的实现方式中,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
结合第二方面、第二方面的第一种至第五种任一可能的实现方式,在第二方面的第六种可能的实现方式中,所述用于业务消息传输的业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
逻辑信道、所述逻辑信道标识、映射关系、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
结合第二方面的第一种可能的实现方式,在第二方面的第七种可能的实现方式中,所述业务消息的QoS需求包括以下之一或组合:
优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
结合第二方面、第二方面的第一种至第七种任一可能的实现方式,在第二方面的第八种可能的实现方式中,所述网络侧设备包括基站;或者,所述网络侧设备包括基站和邻近业务功能实体ProSe Function。
第三方面,本发明实施例提供的一种第一终端,包括:
处理单元,用于配置用于业务消息传输的业务专用无线承载,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;将所述业务消息映射到与其对应的所述业务专用无线承载;
发送单元,用于通过PC5接口发送经过所述处理单元处理后的所述业务消息。
结合第三方面,在第一种可能的实现方式中,所述业务专用无线承载满足其所对应的所述业务消息的服务质量QoS需求。
结合第三方面、第三方面的第一种可能的实现方式,在第三方面的第二种可能的实现方式中,所述处理单元在配置用于业务消息传输的业务专用无 线承载时,具体用于:
根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
结合第三方面、第三方面的第一种可能的实现方式,在第三方面的第三种可能的实现方式中,所述第一终端还包括:
接收单元,用于接收网络侧设备配置的用于业务消息传输的业务专用无线承载;
所述处理单元在配置用于业务消息传输的业务专用无线承载时,具体用于:
将所述接收单元从网络侧设备接收的用于业务消息传输的业务专用无线承载,作为配置的用于业务消息传输的业务专用无线承载。
结合第三方面的第三种可能的实现方式,在第三方面的第四种可能的实现方式中,所述接收单元在接收网络侧设备配置的用于业务消息传输的业务专用无线承载时,具体用于:
接收所述网络侧设备发送的映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
结合第三方面的第三种或第四种可能的实现方式,在第三方面的第五种可能的实现方式中,所述发送单元还用于:
向所述网络侧设备发送业务请求消息;
所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
结合第三方面、第三方面的第一种至第五种任一可能的实现方式,在第三方面的第六种可能的实现方式中,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
结合第三方面的第六种可能的实现方式,在第三方面的第七种可能的实现方式中,所述处理单元在将所述业务消息映射到与其对应的所述业务专用 无线承载时,具体用于:
根据所述业务消息的层间原语和所述业务消息与业务专用无线承载的映射关系,将所述业务消息映射到与其对应的所述业务专用无线承载,所述业务消息的层间原语包括所述业务消息的优先级和/或所述业务消息的消息类型。
结合第三方面、第三方面的第一种至第七种任一可能的实现方式,在第三方面的第八种可能的实现方式中,所述业务消息对应的所述业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
逻辑信道、所述逻辑信道标识、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
结合第三方面的第八种可能的实现方式,在第三方面的第九种可能的实现方式中,所述处理单元将所述业务消息映射到与其对应的所述业务专用无线承载之后,还用于:
通过所述PDCP实体和所述RLC实体对所述业务消息进行处理,将处理后的所述业务消息映射到所述逻辑信道;
生成包括所述业务消息和所述逻辑信道标识的媒体接入控制MAC协议数据单元PDU;
所述发送单元在通过PC5接口发送经过所述处理单元处理后的所述业务消息时,具体用于:
通过PC5接口发送所述处理单元生成的包括所述业务消息和所述逻辑信道标识的MAC PDU。
结合第三方面的第九种可能的实现方式,在第三方面的第十种可能的实现方式中,所述MAC PDU还包括业务标识,所述业务标识用于指示所述MAC PDU包括业务消息。
结合第三方面的第十种可能的实现方式,在第三方面的第十一种可能的实现方式中,所述业务标识为业务消息的逻辑信道标识或目的地层2标识。
结合第三方面的第九种可能的实现方式,在第三方面的第十二种可能的 实现方式中,所述处理单元在生成包括所述业务消息和所述逻辑信道标识的MAC PDU时,具体用于:
生成包括所述业务消息的MAC业务数据单元SDU;
将所述MAC SDU封装在MAC中,所述MAC PDU包括至少一个MAC SDU,所述MAC PDU的包头中包括所述至少一个MAC SDU中每个MAC SDU包括的业务消息对应的逻辑信道标识。
结合第三方面的第九种可能的实现方式,在第三方面的第十三种可能的实现方式中,所述处理单元还用于:
根据所述业务消息对应的所述业务专用无线的配置信息,为所述业务消息的逻辑信道分配传输资源。
结合第三方面的第一种可能的实现方式,在第三方面的第十四种可能的实现方式中,所述业务消息的QoS需求包括以下之一或组合:
优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
第四方面,本发明实施例提供的一种网络侧设备,包括:
处理单元,用于配置用于业务消息传输的业务专用无线承载,所述业务消息在PC5接口上传输,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
发送单元,用于将所述处理单元配置的所述用于业务消息传输的业务专用无线承载发送给第一终端。
结合第四方面,在第一种可能的实现方式中,所述业务专用无线承载满足其所对应的所述业务消息的服务质量QoS需求。
结合第四方面或第四方面的第一种可能的实现方式,在第四方面的第二种可能的实现方式中,所述处理单元用于:
根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
结合第四方面或第四方面的第一种或第二种可能的实现方式,在第四方 面的第三种可能的实现方式中,所述发送单元具体用于:
向所述第一终端发送映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
结合第四方面、第四方面的第一种至第三种任一可能的实现方式,在第四方面的第四种可能的实现方式中,所述网络侧设备还包括:
接收单元,用于接收所述第一终端发送的业务请求消息;
所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
结合第四方面、第四方面的第一种至第四种任一可能的实现方式,在第四方面的第五种可能的实现方式中,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
结合第四方面、第四方面的第一种至第五种任一可能的实现方式,在第四方面的第六种可能的实现方式中,所述用于业务消息传输的业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
逻辑信道、所述逻辑信道标识、映射关系、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
结合第四方面的第一种可能的实现方式,在第四方面的第七种可能的实现方式中,所述业务消息的QoS需求包括以下之一或组合:
优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
结合第四方面、第四方面的第一种至第七种任一可能的实现方式,在第四方面的第八种可能的实现方式中,所述网络侧设备包括基站;或者,所述网络侧设备包括基站和邻近业务功能实体ProSe Function。
本发明实施例提供的技术方案中,通过配置用于V2X业务消息传输的V2X业务专用无线承载,并将V2X业务消息映射到其对应的业务专用无线承载(即V2X业务专用无线承载),进而实现第一终端通过PC5接口发送V2X业务消息, 同时保证非IP的V2X业务消息的QoS需求,即通过本发明实施例提供的技术方案能够实现非IP的、具有多种QoS需求的V2X业务消息的传输。
附图说明
图1为本发明实施例提供的一种V2X通信场景示意图;
图2为本发明实施例提供的3GPP标准定义的D2D通信网络架构示意图;
图3为本发明实施例提供的一种业务消息传输方法流程示意图;
图4为本发明实施例提供的PC5空口协议栈结构示意图;
图5为本发明实施例提供的一种V2X通信过程示意图;
图6为本发明实施例提供的一种V2X通信过程示意图;
图7为本发明实施例提供的将业务消息映射到其对应的业务专用无线承载的过程示意图;
图8为本发明实施例提供的一种V2X通信过程示意图;
图9为本发明实施例提供的一种V2X通信过程示意图;
图10为本发明实施例提供的一种业务消息传输方法流程示意图;
图11为本发明实施例提供的一种第一终端结构示意图;
图12为本发明实施例提供的一种网络侧设备结构示意图;
图13为本发明实施例提供的一种第一终端结构示意图;
图14为本发明实施例提供的一种网络侧设备结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明实施例提供一种业务消息传输方法、第一终端及网络侧设备,业务消息是指V2X业务消息,即业务消息包括车辆与车辆V2V业务消息、车辆 与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息,以实现V2X业务消息传输。其中,方法和装置是基于同一发明构思的,由于方法及装置解决问题的原理相似,因此装置与方法的实施可以相互参见,重复之处不再赘述。
本发明实施例提供的技术方案涉及V2X通信,V2X通信是指,车辆与车辆V2V、车辆与通信基础设施V2I或者车辆与行人手持终端V2P通过无线通信技术直接进行数据传输和信息交互。V2X通信提供并支持与道路交通安全方面相关的应用和消息传输。
与LTE***所支持的IP业务数据不同,V2X通信中传输的V2X业务消息是一种非IP业务数据。根据V2X通信应用场景的不同,不同类型的V2X业务消息具有不同的QoS需求,具有相同QoS需求的V2X消息属于同一QoS等级。例如,V2X业务消息类型、V2X业务消息的QoS需求以及V2X业务消息所属的QoS等级如表一所示。
表一
Figure PCTCN2015099921-appb-000001
Figure PCTCN2015099921-appb-000002
表一中,QoS参数包括优先级(Priority)、数据包时延预算(Packet Delay Budget,PDB)、误码及丢包率(Packet Error Loss Rate,PELR)、最大传输频率(MAX Frequency)和传输距离(Range),V2X业务消息的QoS需求是指该V2X业务消息在各个QoS参数上达到一定取值,按照QoS需求的不同,将不同类型的V2X业务消息划分为QoS等级1至8,QCI表示QoS等级标识(QoS Class Identifier)。表一中涉及的V2X业务消息的类型包括:碰撞前预警(Pre-Crash Warning)、纵向碰撞风险告警(Longitudinal Collision Risk Warning,LCRW)、交叉口碰撞风险告警(Intersection Collision Risk Warning,ICRW)、道路危险告警(Road Hazard Signaling,RHS)、车内道路标记提示(In-vehicle signage,IVS)以及电子过路收费(Electronic Toll Collection,ETC)。
需要说明的是,本发明实施例中,QoS参数、V2X业务消息的QoS需求以及V2X业务消息所属QoS等级的划分方式并不局限于表一中内容,本发明实施例提供的技术方案具有普适性,也可用于表一示例以外其他可能的示例。
V2X业务消息传输本质上是一种设备到设备(Device-to-Device Communication,D2D)通信的业务。本发明实施例提供的技术方案可以应用于图1所示的V2X通信场景。其中,终端可以是网络覆盖范围内的终端,也可以是网络覆盖范围外的终端,具体的,终端可以是进行V2X通信的车辆终端、通信基础设施(Infrastructure)、行人手持终端(Pedestrian)、路边单元(Road Side Unit,RSU)等;网络侧设备主要涉及基站、邻近业务功能实体(ProSe Function)等网络节点,ProSe Function是位于LTE***核心网侧的网络节点, 主要用于位进行D2D通信的终端进行授权和参数配置。
本发明实施例提供的技术方案适用于图2所示的网络架构,图2为第三代合作伙伴项目(3rd Generation Partnership Project,3GPP)相关标准规范定义的D2D通信的网络架构。相比于现有的LTE***,图2所示的网络架构中新增的网元包括邻近业务功能实体(ProSe Function)和邻近业务应用服务器(ProSe Application Server),新增的接口包括PC1、PC2、PC3、PC4、PC5。其中,PC3接口为终端与ProSe Function进行信息交互的接口,PC5为终端之间进行D2D通信的接口;ProSe Function主要执行D2D通信的业务授权及参数配置的功能。具体地,需要进行D2D通信的终端,会通过PC3接口向ProSe Function请求D2D通信业务的授权、并获取相关的D2D通信参数,而ProSe Function则会通过PC3接口对终端进行D2D通信业务的授权和相应参数配置。终端之间通过PC5接口进行D2D通信。图2中的英文及英文缩写的中文含义如下:
邻近业务应用(ProSe Application)、归属签约用户服务器(Home Subscriber Server,HSS)、业务逻辑处理(Service Logic Processing,SLP)、移动管理实体(Mobile Management Entity,MME)、S/PGW即服务网关(Serving Gateway,SGW)和分组数据网(Packet Data Network,PDN)网关(PDN-GateWay,P-GW)。
目前,现有D2D通信支持IP数据传输和ARP信令传输。对于IP数据传输,必须通过对IP数据包头中的IP五元组进行过滤,才能将IP数据映射到无线承载,进而实现IP数据的传输;而对于ARP信令,其没有像V2X业务消息那样具备多种QoS需求。因此,现有的D2D通信并不支持非IP的、具有多种QoS需求的V2X业务消息的传输。
本发明实施例提供的技术方案中,通过配置用于V2X业务消息传输的V2X业务专用无线承载,并将V2X业务消息映射到其对应的V2X业务专用无线承载,进而实现V2X业务消息的传输,同时保证非IP的V2X业务消息的QoS需求,即通过本发明实施例提供的技术方案能够实现非IP的、具有多种QoS需求的V2X业务消息的传输。
下面详细介绍本发明实施例提供的技术方案。
注:本发明实施例中,业务消息是指V2X业务消息,即业务消息包括车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息。业务专用无线承载是指V2X业务专用无线承载,用于V2X业务消息传输。第一终端是指V2X业务消息传输的发送端,第二终端是指V2X业务消息传输的接收端。
如图3所示,本发明实施例提供了一种业务消息传输方法,包括:
S301、第一终端配置用于业务消息传输的业务专用无线承载,业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
S302、第一终端将业务消息映射到与其对应的业务专用无线承载;
S303、第一终端通过PC5接口发送业务消息。
本发明实施例中,V2X业务中包括不同类型的业务消息,不同类型的业务消息可能具有不同的QoS需求,即不同类型的业务消息可能属于不同的QoS等级。第一终端为具有不同QoS需求的业务消息配置不同的业务专用无线承载,以保证业务专用无线承载满足其所对应的业务消息的QoS需求。通过将业务消息映射到与其对应的业务专用无线承载的过程,可以将具有相同QoS需求的业务消息映射到同一个业务专用无线承载,相当于将业务消息进行“分类”,即具有相同QoS需求的业务消息分为一类。业务专用无线承载专用于与其对应的业务消息的传输,业务专用无线承载不同于现有的D2D通信中的D2D无线承载(Sidelink Radio Bearer,SLRB)。本发明实施例中,业务消息的QoS需求是指业务消息在QoS参数上所需达到的取值,QoS参数包括但不限于:优先级、时延、误码率、丢包率、优先比特率(Prioritized Bit Rate,PBR)、保证比特率(Guaranteed Bit Rate,GBR)、传输距离和传输频率。
针对具有相同QoS需求的业务消息,均可采用图3所示的方法,配置用于业务消息传输的业务专用无线承载,并将业务消息映射到与其对应的业务专用无线承载,进而实现业务消息的传输,保证业务消息的QoS需求。
第一终端配置的业务专用无线承载包括业务消息与业务专用无线承载的映射关系,用于第一终端将业务消息映射到与其对应的业务专用无线承载。
S301中,第一终端配置用于业务消息传输的业务专用无线承载的方法包括以下两种:
第一种:第一终端接收网络侧设备发送的用于业务消息传输的业务专用无线承载。
第二种:第一终端根据业务消息的QoS需求,配置业务消息用于业务消息传输的业务专用无线承载。
可选的,第一终端接收网络侧设备发送的映射模板,映射模板包括第二种:第一终端接收网络侧设备发送的用于业务消息传输的业务专用无线承载。
可选的,第一终端向网络侧设备发送业务请求消息;
业务请求消息用于请求业务消息对应的业务专用无线承载,业务请求消息包括以下信息之一或组合:业务消息的消息类型、业务消息的优先级和业务消息的时延。
本发明实施例中,业务消息对应的业务专用无线承载包括配置信息,配置信息包括但不限于以下信息:
逻辑信道、逻辑信道标识(Logical Channel Identifier,LCID)、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)实体和无线链路控制(Radio Link Control,RLC)实体。
不同的业务专用无线承载的配置信息之间相互独立,其中,业务专用无线承载指示为无线承载类型标识的一种,用于指示该业务专用无线承载是用于业务消息传输的无线承载,而非用于除V2X通信之外的D2D通信的D2D无线承载SLRB。业务专用无线承载的标识用于区分不同的业务专用无线承载。
本发明实施例中,第一终端将业务消息映射到其对应的业务专用无线承载之后,根据业务消息对应的业务专用无线承载的配置信息,将业务消息发 送给第二终端,具体过程如下:
第一终端通过配置信息中指示的PDCP实体和RLC实体对业务消息进行处理,将处理后的业务消息映射到配置信息中指示的逻辑信道;
第一终端生成包括业务消息和逻辑信道标识的MAC协议数据单元(Protocol Data Unit,PDU);
第一终端通过PC5接口将包括业务消息和逻辑信道标识的MAC PDU发送给第二终端。
具体的,第一终端生成包括业务消息和逻辑信道标识的MAC PDU的方法包括:
第一终端生成包括业务消息的MAC业务数据单元(Service Data Unit,SDU);
第一终端将MAC SDU封装在MAC协议数据单元(Protocol Data Unit,PDU)中,MAC PDU包括至少一个MAC SDU,MAC PDU的包头中包括至少一个MAC SDU中每个MAC SDU包括的业务消息对应的逻辑信道标识。
优选的,在封装有至少一个MAC SDU的MAC PDU的包头中,逻辑信道标识按照这至少一个MAC SDU在MAC PDU中的顺序进行排列,以便接收端能够识别包头中的逻辑信道标识对应哪一个MAC SDU中包括的业务消息。
本发明实施例提供的上述方法涉及D2D通信的PC5空口协议栈,如图4所示,PC5空口协议栈包括PDCP层、RLC层、MAC层、物理层(Physical Laye,PHY)四个协议层。本发明实施例提供的上述方法具体包括:将业务消息映射到其对应的业务专用无线承载后,在PDCP层(即PDCP实体)对业务消息进行加密和完整性保护等与通信安全相关的处理,在RLC层(即RLC实体)对业务消息进行分割/组合等操作,生成包括业务消息的MAC SDU,以支持PC5接口无线资源。PDCP实体和RLC实体对业务消息进行的相关处理与现有的D2D通信相同,此处不再赘述。
MAC层接收包含业务消息的MAC SDU,不同的MAC SDU可能对应不 同的业务专用无线承载,根据MAC SDU对应的业务专用无线承载的配置信息可知该MAC SDU对应的逻辑信道,将MAC SDU映射到其对应的逻辑信道,然后对MAC SDU进行调度、复用等处理,并将MAC SDU作为负载封装在MAC PDU中,生成包括业务消息和逻辑信道标识的MAC PDU,将MAC PDU并作为MAC层的输出递交给PHY层进行进一步处理。在PHY层通过PC5接口将MAC层递交的MAC PDU发送给第二终端。
可选的,在上述MAC层处理过程中,第一终端根据业务消息对应的业务专用无线承载的配置信息,为业务消息的逻辑信道分配传输资源。根据逻辑信道分配的资源可确定该逻辑信道可传输的业务消息的数据大小,并将相应数据大小的业务消息封装在MAC PDU中,从而满足逻辑信道对应的业务消息的QoS需求。MAC层为业务消息对应的逻辑信道分配资源,可以采用LTE的MAC协议中相关逻辑信道优先级(Logical Channel Prioritization,LCP)处理方法等,此方法取决于终端自身的内部实现,本发明实施例中不做具体限定。
在发送端,每一个协议层处理后的数据,都将递交给下一个协议层进行相应的处理;接收端接收发送端发送的MAC PDU后,对MAC PDU进行与发送端处理流程相反的处理,此处不再赘述。
本发明实施例中,第一终端利用可用的传输资源并通过PC5接口,将包括业务消息和业务消息对应的逻辑信道标识的MAC PDU发送给第二终端。第一终端在发送MAC PDU之前,需要利用PHY层的调制、编码等技术对MAC PDU进行处理,此处为现有D2D通信技术,不再赘述。
基站在LTE***授权频谱上,配置若干个“D2D通信资源池”。对于基站覆盖范围内的终端,使用基站在LTE***授权频谱上配置的“D2D通信资源池”中的传输资源,以避免该终端的D2D通信对LTE***中的蜂窝通信产生干扰。终端可以通过与基站间的信息交互,由基站为终端分配用于业务消息传输的传输资源;也可以通过自由竞争的方式,在“D2D通信资源池”中自主选择用于业务消息传输的传输资源。
在LTE***授权频谱之外的某些专用频谱上,***也配置若干个“D2D通信资源池”,使得基站覆盖范围外的终端也能够利用“D2D通信资源池”中的资源进行D2D通信。基站覆盖范围外的终端通过自由竞争的方式,在“D2D通信资源池”中自主选择用于业务消息传输的传输资源。
本发明实施例中,第一终端生成的MAC PDU可能仅包括V2X业务消息(即上文中的业务消息,为区分V2X业务消息和D2D业务消息,此处使用V2X业务消息),可能仅包括D2D业务消息(此处D2DD2D业务消息是指除V2X业务消息之外的D2D业务消息),也可能同时包括V2X业务消息和D2D业务消息,第二终端接收第一终端发送的MAC PDU后,需要区分V2X业务消息和D2D业务消息。因此,第一终端生成的MAC PDU还可以包括业务标识,业务标识用于指示该MAC PDU包括V2X业务消息。业务标识可以为V2X业务消息的逻辑信道标识或目的地层2标识(Destination Layer-2Identity)等。
举例说明一:业务标识可以为V2X业务消息的逻辑信道标识。
现有技术中,D2D业务消息占用的逻辑信道标识的取值范围为“00001~01010”,取值范围为“01011~11110”的逻辑信道标识被保留用于可能的功能扩展。本发明实施例中,可以将V2X业务消息对应的逻辑信道标识的取值范围设置为“00001~01010”。第二终端接收第一终端发送的MAC PDU后,根据MAC PDU的报头中携带的逻辑信道标识所属的取值范围,确定该逻辑信道标识对应的MAC SDU包含的是V2X业务消息或者是D2D业务消息。
举例说明二:业务标识可以为目的地层2标识。
本发明实施例中定义目的地层2标识,也可称为业务专用组标识,用于指示携带目的地层2标识的MAC PDU仅包含V2X业务消息,例如将目的地层2标识设置为“111111111111111111111111”,此时对于V2X业务消息占用的逻辑信道标识的取值范围没有限定。第一终端将携带有目的地层2标识的MAC PDU发送给第二终端,第二终端检测到MAC PDU中携带目的地层2标识,便可确定该MAC PDU仅包含V2X业务消息,该MAC PDU的包头中 的逻辑信道标识均为V2X业务消息对应的逻辑信道标识,进而获取V2X业务消息。
需要说明的是,业务标识用于指示该MAC PDU包括V2X业务消息,上述业务标识并不局限于本发明实施例中提供的形式,也可以采用其他形式。
本发明实施例中,可选的,第一终端根据业务消息(即V2X业务消息)的层间原语和业务消息与业务专用无线承载的映射关系,将业务消息映射到与其对应的业务专用无线承载,业务消息的层间原语包括但不限于:业务消息的优先级和/或业务消息的消息类型。
第一终端生成的业务消息携带V2X相关参数,例如V2X相关参数包括业务消息的优先级、业务消息的消息类型等,V2X相关参数以层间原语或消息头等方式随业务消息一起递交给PDCP层,并执行相关操作。第一终端可以通过匹配业务消息的层间原语、以及已配置的业务消息对应的业务专用无线承载,检测是否已配置用于该业务消息传输的业务专用无线承载。如果第一终端已配置用于该业务消息传输的业务专用无线承载,则无需重新配置,根据业务消息与业务专用无线承载的映射关系,将该业务消息映射到其对应的业务专用无线承载,进而实现该业务消息的传输。
如果第一终端检测到没有配置用于该业务消息传输的业务专用无线承载,则第一终端配置用于该业务消息传输的业务专用无线承载。具体的,第一终端可以自身配置用于该业务消息传输的业务专用无线承载,也可以从网络侧获取用于该业务消息传输的业务专用无线承载。用于该业务消息传输的业务专用无线承载包括:业务消息与业务专用无线承载的映射关系,以及业务专用无线承载的配置信息,其中业务专用无线承载的配置信息包括但不限于以下信息:逻辑信道、逻辑信道标识、业务专用无线承载指示、业务专用无线承载的标识、PDCP实体和RLC实体。
下面举例说明第一终端与第二终端进行的V2X业务过程。
举例说明(一):第一终端自身配置用于业务消息传输的业务专用无线承载。第一终端可以为基站覆盖范围外的终端。
如图5所示,第一终端与第二终端进行V2X通信过程如下:
S501、第一终端配置用于业务消息传输的业务专用无线承载。
第一终端根据业务消息的QoS需求,配置的用于该业务消息传输的业务专用无线承载。
第一终端可以预先根据全部可能的业务消息的QoS需求,为具备不同QoS需求的不同业务消息分别配置对应的业务专用无线承载;第一终端也可以分多次为具备不同QoS需求的不同业务消息分别配置对应的业务专用无线承载。
可选的,用于业务消息传输的业务专用无线承载作为第一终端的出厂设置,保存在第一终端内部的芯片或集成电路中。
S502、第一终端将业务消息映射到其对应的业务专用无线承载,并执行相关操作,生成包括业务消息和业务消息对应的逻辑信道标识的MAC PDU。
上文中已详细描述第一终端生成包括业务消息和业务消息对应的逻辑信道标识的MAC PDU的过程,此处不再赘述。
S503、第一终端通过PC5接口,将包括业务消息和业务消息对应的逻辑信道标识的MAC PDU发送给第二终端。
S504、第二终端对接收的MAC PDU执行相关操作。
具体的,第二终端在PHY层通过PC5接口接收第一终端发送的MAC PDU,该MAC PDU包括业务消息和业务消息对应的逻辑信道标识,第二终端在PHY层通过PC5接口接收MAC PDU的过程与现有的D2D通信技术相同,此处不再赘述。PHY层将MAC PDU递交给MAC层作相应处理,此过程与第一终端侧的MAC层处理过程相同,此处不再赘述。
第二终端根据MAC PDU包头中的逻辑信道标识,识别该逻辑信道标识为业务专用逻辑信道,即该逻辑信道标识对应的MAC SDU包括业务消息;第二终端建立与该逻辑信道标识对应的逻辑信道、PDCP实体和RLC实体。可选的,若第二终端已建立该逻辑信道标识对应的逻辑信道、PDCP实体和RLC实体,此步骤可省略。
第二终端将业务消息映射到其对应的逻辑信道,并将业务消息向上递交给其对应的PDCP实体和RLC实体进行相关处理,该处理过程与第一终端侧的响应处理过程相反,此处不再赘述。
第二终端将处理后的业务消息递交给V2X应用,完成对业务消息的接收。第二终端只会将映射到业务专用逻辑信道的业务消息递交给V2X应用,而不会递交给IP层/ARP层及应用层,从而保证第二终端通过PC5接口对业务消息的接收。
举例说明(二):第一终端从网络侧设备获取用于业务消息传输的业务专用无线承载。第一终端可以为基站覆盖范围内的终端,网络侧设备包括基站和邻近业务功能实体(ProSe Function)。
如图6所示,本发明实施例提供的一种V2X通信过程中,第一终端、第二终端及网络侧设备的交互过程如下:
S601、第一终端向邻近业务功能实体发送业务请求消息。
V2X业务请求消息用于请求获得用于业务消息传输的业务专用无线承载。业务请求消息包括业务消息的业务相关参数(是指V2X业务的相关参数),业务相关参数包括但不限于:业务消息的消息类型、业务消息的优先级和业务消息的时延需求。
第一终端通过V2X业务接入点(V2X Service Access Point,V-SAP)获取业务消息的业务相关参数,业务相关参数以消息头或层间原语等形式存在,V-SAP为第一终端的V2X应用层与PC5接口的PDCP层之间的接口。
业务请求消息还可以包括业务消息的QoS需求。第一终端根据V2X应用的需求和/或业务消息的业务相关参数,确定业务消息的QoS需求,例如确定业务消息在时延、PBR、GBR等QoS参数上的QoS需求,第一终端将所确定的业务消息的上述QoS需求携带在业务请求消息中发送给邻近业务功能实体。
业务请求消息还包括业务指示,用于指示第一终端所请求的业务是V2X业务,而非除V2X业务之外其他D2D业务。
第一终端通过图2所示的PC3接口向邻近业务功能实体发送业务请求消息。本发明实施例中对业务请求消息的消息类型不做限定,例如,可以是移动开放联盟的设备管理(Open Mobile Alliance Device Management,OMA DM)消息。
S602、邻近业务功能实体确定业务消息的QoS需求、以及该QoS需求对应的映射模板。
邻近业务功能实体根据业务消息的业务相关参数,确定业务消息的QoS需求,并进一步确定业务消息的QoS需求对应的映射模板。QoS需求对应的映射模板用于指示QoS需求与V2X相关参数的映射关系,映射模板包括具有相同QoS需求的所有业务消息的V2X相关参数的集合。若业务消息的业务相关参数与某一映射模板的业务相关参数相同,则业务消息与该映射模板匹配,该映射模板即为该业务消息对应的映射模板。
邻近业务功能实体预先保存有不同V2X业务消息分别对应的QoS需求、以及不同QoS需求分别对应的映射模板。
S603、邻近业务功能实体向基站发送业务响应消息。
该业务响应消息包括业务消息的QoS需求、以及该QoS需求对应的映射模板。
可选的,邻近业务功能实体通过图2所示的网络架构将业务响应消息发送给基站的传输路径为:邻近业务功能实体通过PC4接口将业务响应消息发送给归属签约用户服务器(Home Subscriber Server,HSS),HSS通过S6a接口将业务响应消息发送给移动性管理实体(Mobility Management Entity,MME),MME通过S1接口将V2X业务响应消息发送给基站。
S604、基站根据业务消息的QoS需求、以及该QoS需求对应的映射模板,配置用于业务消息传输的业务专用无线承载。
基站配置的用于业务消息传输的业务专用无线承载,满足业务消息的QoS需求。业务专用无线承载包括的具体内容参见此处不再赘述。
S605、基站将用于业务消息传输的业务专用无线承载发送给第一终端。
基站通过无线资源控制(Radio Resource Control,RRC)消息将用于业务消息传输的业务专用无线承载发送给第一终端。
可选的,基站将业务消息的QoS需求对应的映射模板作为业务专用无线承载的配置信息发送给第一终端。
S606、第一终端将业务消息映射到其对应的业务专用无线承载,并执行相关操作,生成包括业务消息和业务消息对应的逻辑信道标识的MAC PDU。
S607、第一终端通过PC5接口,将包括业务消息和业务消息对应的逻辑信道标识的MAC PDU发送给第二终端。
S608、第二终端对接收的MAC PDU执行相关操作。
上述S606至S608的具体内容参见举例说明(一)中的S502至S504,此处不再赘述。
结合图6所示的方法,S606第一终端将业务消息映射到其对应的业务专用无线承载的过程发生在V-SAP接口处,具体过程如图7所示:图7中V2X-RBn表示已配置的业务专用无线承载,n表示不同的V2X业务专用无线承载标识;第一终端通过V-SAP接口获取业务消息的业务相关参数后,将业务消息的业务相关参数与映射模板逐一进行匹配。若业务消息的业务相关参数与映射模板n匹配成功,则将该业务消息映射到映射模板n对应的V2X-RBn,即执行步骤S606至S608;若业务消息的业务相关参数与已存在的映射模板均未匹配成功,则执行步骤S601至S608。
举例说明(三):第一终端从网络侧设备获取用于业务消息传输的业务专用无线承载。第一终端可以为基站覆盖范围内的终端,网络侧设备为基站。
如图8所示,本发明实施例提供的一种V2X通信过程中,第一终端、第二终端及基站的交互过程如下:
S801、第一终端向基站发送业务请求消息。
V2X业务请求消息用于请求获得用于业务消息传输的业务专用无线承载。业务请求消息包括业务消息的业务相关参数,业务相关参数包括但不限于:业务消息的消息类型、业务消息的优先级和业务消息的时延。第一终端 通过V2X业务接入点(V2X Service Access Point,V-SAP)获取业务消息的业务相关参数,V2X相关参数以消息头或层间原语等形式存在,V-SAP为第一终端的V2X应用层与PC5接口的PDCP层之间的接口。
可选的,V2X业务请求消息包括业务消息的QoS需求。第一终端根据V2X应用的需求和/或业务消息的业务相关参数,确定业务消息的QoS需求,例如确定业务消息在时延、PBR、GBR等QoS参数上的QoS需求,第一终端将确定的业务消息的QoS需求携带在业务请求消息中发送给基站。
V2X业务请求消息还包括业务指示,用于指示第一终端所请求的业务是V2X业务,而非除V2X业务之外其他D2D业务。
第一终端通过RRC消息向基站发送V2X业务请求消息。
S802、基站配置用于业务消息传输的业务专用无线承载。
基站确定业务消息的业务相关参数对应的业务专用无线承载的标识,基站再根据业务消息的业务相关参数确定业务消息的QoS需求,并为业务消息配置满足其QoS需求的业务专用无线承载的配置信息。
例如:结合表一,业务消息的消息类型为Pre-crash Warning,基站确定Pre-crash Warning对应的业务专用无线承载的标识为1,基站按照消息类型为Pre-crash Warning对应的QoS需求,配置业务专用无线承载的标识为1的业务专用无线承载的配置信息。
S803、基站将用于业务消息传输的业务专用无线承载发送给第一终端。
基站通过RRC消息将用于业务消息传输的业务专用无线承载发送给第一终端。
S804、第一终端将业务消息映射到其对应的业务专用无线承载,并执行相关操作,生成包括业务消息和业务消息对应的逻辑信道标识的MAC PDU。
S805、第一终端通过PC5接口,将包括业务消息和业务消息对应的逻辑信道标识的MAC PDU发送给第二终端。
S806、第二终端对接收的MAC PDU执行相关操作。
上述S804至S806的具体内容参见举例说明(一)中的S502至S504, 此处不再赘述。
举例说明(四):第一终端从网络侧设备获取用于业务消息传输的业务专用无线承载。第一终端可以为基站覆盖范围内的终端,网络侧设备为基站。
如图9所示,本发明实施例提供的一种V2X通信过程中,第一终端、第二终端及基站的交互过程如下:
S901、基站配置用于业务消息传输的业务专用无线承载。
基站根据全部可能的业务消息的QoS需求,为具备不同QoS需求的不同业务消息分别配置对应的业务专用无线承载。
S902、基站通过***消息广播向第一终端发送用于业务消息传输的业务专用无线承载。
基站通过***消息广播发送具备不同QoS需求的不同业务消息分别配置对应的业务专用无线承载。基站覆盖范围内的所有终端均可接收到基站的***消息。
可选的,基站的***消息中还可以包括举例说明(二)中的映射模板。
S903、第一终端将业务消息映射到其对应的业务专用无线承载,并执行相关操作,生成包括业务消息和业务消息对应的逻辑信道标识的MAC PDU。
S904、第一终端通过PC5接口,将包括业务消息和业务消息对应的逻辑信道标识的MAC PDU发送给第二终端。
S905、第二终端对接收的MAC PDU执行相关操作。
上述S903至S905的具体内容参见举例说明(一)中的S502至S504,此处不再赘述。
第一终端通过本发明实施例提供的业务消息传输方法,将V2X业务消息映射到其对应的V2X业务专用无线承载,进而实现V2X业务消息的传输,同时保证非IP的V2X业务消息的QoS需求。
与第一终端侧对应的,在网络侧,如图10所示,本发明实施例提供一种业务消息传输方法,包括:
S1001、网络侧设备配置用于业务消息传输的业务专用无线承载,业务消 息在PC5接口上传输,业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
S1002、网络侧设备将配置的用于业务消息传输的业务专用无线承载发送给第一终端。
本发明实施例中,业务消息是指V2X业务消息,业务专用无线承载是指V2X业务专用无线承载。网络侧设备配置的业务专用无线承载满足其所对应的业务消息的服务质量QoS需求。业务消息的QoS需求是指业务消息在QoS参数上所需达到的取值,QoS参数包括但不限于:优先级、时延、误码及丢包率PELR、传输距离、传输频率。
可选的,业务专用无线承载包括业务消息与业务专用无线承载的映射关系。网络侧设备根据业务消息的服务质量QoS需求,配置业务消息与业务专用无线承载的映射关系。用于业务消息传输的业务专用无线承载包括配置信息,配置信息包括但不限于以下之一或组合:
逻辑信道、逻辑信道标识、映射模板、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
可选的,网络侧设备向第一终端发送映射模板,映射模板包括业务消息与业务专用无线承载的映射关系。
可选的,网络侧设备执行S1001之前,网络侧设备接收第一终端发送的业务请求消息;业务请求消息用于请求用于业务消息传输的业务专用无线承载,业务请求消息以下之一或组合:业务消息的消息类型、业务消息的优先级和业务消息的时延。
本发明实施例中,网络侧设备包括基站;或者,网络侧设备包括基站和邻近业务功能实体ProSe Function。
网络侧设备侧实施例的具体内容参见第一终端侧方法实施例,此处不再赘述。
第一终端通过本发明实施例提供的网络侧实施例提供的方法,能够获得 用于V2X业务消息传输的V2X业务专用无线承载,进而将V2X业务消息映射到其对应的V2X业务专用无线承载,实现V2X业务消息的传输,同时保证非IP的V2X业务消息的QoS需求。
基于以上实施例,本发明实施例还提供了一种第一终端,该第一终端可以采用图3对应的实施例提供的方法,参阅图11所示,该第一终端1100包括:处理单元1101、发送单元1102以及接收单元1103。
处理单元1101,用于配置用于业务消息传输的业务专用无线承载,业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;将业务消息映射到与其对应的业务专用无线承载;
发送单元1102,用于通过PC5接口发送经过处理单元1101处理后的业务消息。
可选的,业务专用无线承载满足其所对应的业务消息的服务质量QoS需求。
可选的,处理单元1101在配置用于业务消息传输的业务专用无线承载时,具体用于:
根据业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
可选的,接收单元1103用于:
接收网络侧设备配置的用于业务消息传输的业务专用无线承载;
处理单元1101在配置用于业务消息传输的业务专用无线承载时,具体用于:
将接收单元1103从网络侧设备接收的用于业务消息传输的业务专用无线承载,作为配置的用于业务消息传输的业务专用无线承载。
可选的,接收单元1103在接收网络侧设备配置的用于业务消息传输的业务专用无线承载时,具体用于:
接收网络侧设备发送的映射模板,映射模板包括用于业务消息传输的业 务专用无线承载。
可选的,发送单元1102还用于:
向网络侧设备发送业务请求消息;
业务请求消息用于请求用于业务消息传输的业务专用无线承载,业务请求消息以下之一或组合:业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
可选的,业务专用无线承载包括业务消息与业务专用无线承载的映射关系。
可选的,处理单元1101在将业务消息映射到与其对应的业务专用无线承载时,具体用于:
根据业务消息的层间原语和业务消息与业务专用无线承载的映射关系,将业务消息映射到与其对应的业务专用无线承载,业务消息的层间原语包括业务消息的优先级和/或业务消息的消息类型。
可选的,业务消息对应的业务专用无线承载包括配置信息,配置信息包括以下之一或组合:
逻辑信道、逻辑信道标识、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
可选的,处理单元1101将业务消息映射到与其对应的业务专用无线承载之后,还用于:
通过PDCP实体和RLC实体对业务消息进行处理,将处理后的业务消息映射到逻辑信道;
生成包括业务消息和逻辑信道标识的媒体接入控制MAC协议数据单元PDU;
发送单元1102在通过PC5接口发送经过处理单元1101处理后的业务消息时,具体用于:
通过PC5接口发送处理单元1101生成的包括业务消息和逻辑信道标识的MAC PDU。
可选的,MAC PDU还包括业务标识,业务标识用于指示MAC PDU包括业务消息。
可选的,业务标识为业务消息的逻辑信道标识或目的地层2标识。
可选的,处理单元1101在生成包括业务消息和逻辑信道标识的MAC PDU时,具体用于:
生成包括业务消息的MAC业务数据单元SDU;
将MAC SDU封装在MAC中,MAC PDU包括至少一个MAC SDU,MAC PDU的包头中包括至少一个MAC SDU中每个MAC SDU包括的业务消息对应的逻辑信道标识。
可选的,处理单元1101还用于:
根据业务消息对应的业务专用无线的配置信息,为业务消息的逻辑信道分配传输资源。
可选的,业务消息的QoS需求包括以下之一或组合:
优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
基于以上实施例,本发明实施例还提供了一种网络侧设备,该网络侧设备可以采用图10对应的实施例提供的方法,参阅图12所示,该网络侧设备1200包括:处理单元1201、发送单元1202以及接收单元1203。
处理单元1201,用于配置用于业务消息传输的业务专用无线承载,业务消息在PC5接口上传输,业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
发送单元1202,用于将处理单元1201配置的用于业务消息传输的业务专用无线承载发送给第一终端。
可选的,业务专用无线承载满足其所对应的业务消息的服务质量QoS需求。
可选的,处理单元1201用于:
根据业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用 无线承载。
可选的,发送单元1202具体用于:
向第一终端发送映射模板,映射模板包括用于业务消息传输的业务专用无线承载。
可选的,接收单元1203用于:
接收第一终端发送的业务请求消息;
业务请求消息用于请求用于业务消息传输的业务专用无线承载,业务请求消息以下之一或组合:业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
可选的,业务专用无线承载包括业务消息与业务专用无线承载的映射关系。
可选的,用于业务消息传输的业务专用无线承载包括配置信息,配置信息包括以下之一或组合:
逻辑信道、逻辑信道标识、映射关系、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
可选的,业务消息的QoS需求包括以下之一或组合:
优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
可选的,网络侧设备包括基站;或者,网络侧设备包括基站和邻近业务功能实体ProSe Function。
需要说明的是,本发明实施例中对单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部 或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
基于以上实施例,本发明实施例还提供了一种第一终端,该第一终端可采用图3对应的实施例提供的方法,可以是与图11所示的第一终端相同的设备。参阅图13所示,该第一终端1300包括:处理器1301、发射器1302、总线1303、存储器1304以及接收器1305,其中:
处理器1301、发射器1302、存储器1304以及接收器1305通过总线1303相互连接;总线1303可以是外设部件互连标准(peripheral component interconnect,简称PCI)总线或扩展工业标准结构(extended industry standard architecture,简称EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示,图13中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
处理器1301对应图11中处理单元1101,发射器1302对应图11中发送单元1102,接收器1305对应图11中接收单元1103。该第一终端1300还包括存储器1304,用于存放程序等。具体地,程序可以包括程序代码,该程序代码包括计算机操作指令。存储器1304可能包含随机存取存储器(random access memory,RAM),也可能还包括非易失性存储器(non-volatile memory),例如至少一个磁盘存储器。处理器1301执行存储器1304所存放的应用程序,实现如上V2X业务消息传输方法。
基于以上实施例,本发明实施例还提供了一种网络侧设备,该网络侧设备可采用图10对应的实施例提供的方法,可以是与图12所示的网络侧设备相同的设备。参阅图14所示,该网络侧设备1400包括:处理器1401、发射器1402、总线1403、存储器1404以及接收器1405,其中:
处理器1401、发射器1402、存储器1404以及接收器1405通过总线1403相互连接;总线1403可以是PCI总线或EISA总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示,图14中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
处理器1401对应图12中处理单元1201,发射器1402对应图12中发送单元1202,接收器1405对应图12中接收单元1203,该网络侧设备1400还包括存储器1404,用于存放程序等。具体地,程序可以包括程序代码,该程序代码包括计算机操作指令。存储器1404可能包括RAM,也可能还包括非易失性存储器,例如至少一个磁盘存储器。处理器1401执行存储器1404所存放的应用程序,实现如上V2X消息传输方法。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样,倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (48)

  1. 一种业务消息传输方法,其特征在于,包括:
    第一终端配置用于业务消息传输的业务专用无线承载,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
    所述第一终端将所述业务消息映射到与其对应的所述业务专用无线承载;
    所述第一终端通过PC5接口发送所述业务消息。
  2. 如权利要求1所述的方法,其特征在于,所述业务专用无线承载满足其所对应的所述业务消息的服务质量QoS需求。
  3. 如权利要求1或2所述的方法,其特征在于,所述第一终端配置用于业务消息传输的业务专用无线承载,包括:
    所述第一终端根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
  4. 如权利要求1或2所述的方法,其特征在于,所述第一终端配置用于业务消息传输的业务专用无线承载,包括:
    所述第一终端接收网络侧设备配置的用于业务消息传输的业务专用无线承载。
  5. 如权利要求4所述的方法,其特征在于,所述第一终端接收网络侧设备配置的用于业务消息传输的业务专用无线承载,包括:
    所述第一终端接收所述网络侧设备发送的映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
  6. 如权利要求4或5所述的方法,其特征在于,还包括:
    所述第一终端向所述网络侧设备发送业务请求消息;
    所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、 优先比特率PBR和保证比特率GBR。
  7. 如权利要求1至6任一所述的方法,其特征在于,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
  8. 如权利要求7所述的方法,其特征在于,所述第一终端将所述业务消息映射到与其对应的所述业务专用无线承载,包括:
    所述第一终端根据所述业务消息的层间原语和所述业务消息与业务专用无线承载的映射关系,将所述业务消息映射到与其对应的所述业务专用无线承载,所述业务消息的层间原语包括所述业务消息的优先级和/或所述业务消息的消息类型。
  9. 如权利要求1至8任一所述的方法,其特征在于,所述业务消息对应的所述业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
    逻辑信道、所述逻辑信道标识、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
  10. 如权利要求9所述的方法,其特征在于,还包括:
    所述第一终端通过所述PDCP实体和所述RLC实体对所述业务消息进行处理,将处理后的所述业务消息映射到所述逻辑信道;
    所述第一终端生成包括所述业务消息和所述逻辑信道标识的媒体接入控制MAC协议数据单元PDU;
    所述第一终端通过PC5接口发送所述业务消息,包括:
    所述第一终端通过PC5接口发送包括所述业务消息和所述逻辑信道标识的MAC PDU。
  11. 如权利要求10所述的方法,其特征在于,所述MAC PDU还包括业务标识,所述业务标识用于指示所述MAC PDU包括业务消息。
  12. 如权利要求11所述的方法,其特征在于,所述业务标识为业务消息的逻辑信道标识或目的地层2标识。
  13. 如权利要求10所述的方法,其特征在于,所述第一终端生成包括所述业务消息和所述逻辑信道标识的MAC PDU,包括:
    所述第一终端生成包括所述业务消息的MAC业务数据单元SDU;
    所述第一终端将所述MAC SDU封装在MAC中,所述MAC PDU包括至少一个MAC SDU,所述MAC PDU的包头中包括所述至少一个MAC SDU中每个MAC SDU包括的业务消息对应的逻辑信道标识。
  14. 如权利要求10所述的方法,其特征在于,还包括:
    所述第一终端根据所述业务消息对应的所述业务专用无线的配置信息,为所述业务消息的逻辑信道分配传输资源。
  15. 如权利要求2所述的方法,其特征在于,所述业务消息的QoS需求包括以下之一或组合:
    优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
  16. 一种业务消息传输方法,其特征在于,包括:
    网络侧设备配置用于业务消息传输的业务专用无线承载,所述业务消息在PC5接口上传输,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
    所述网络侧设备将配置的所述用于业务消息传输的业务专用无线承载发送给第一终端。
  17. 如权利要求16所述的方法,其特征在于,所述业务专用无线承载满足其所对应的所述业务消息的服务质量QoS需求。
  18. 如权利要求16或17所述的方法,其特征在于,网络侧设备配置用于业务消息传输的业务专用无线承载,包括:
    所述网络侧设备根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
  19. 如权利要求16至18任一所述的方法,其特征在于,所述网络侧设备将所述业务消息对应的所述业务专用无线承载发送给第一终端,包括:
    所述网络侧设备向所述第一终端发送映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
  20. 如权利要求16至19任一所述的方法,其特征在于,还包括:
    所述网络侧设备接收所述第一终端发送的业务请求消息;
    所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
  21. 如权利要求16至20任一所述的方法,其特征在于,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
  22. 如权利要求16至21任一所述的方法,其特征在于,所述用于业务消息传输的业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
    逻辑信道、所述逻辑信道标识、映射关系、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
  23. 如权利要求17所述的方法,其特征在于,所述业务消息的QoS需求包括以下之一或组合:
    优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
  24. 如权利要求16至23任一所述的方法,其特征在于,所述网络侧设备包括基站;或者,所述网络侧设备包括基站和邻近业务功能实体ProSe Function。
  25. 一种第一终端,其特征在于,包括:
    处理单元,用于配置用于业务消息传输的业务专用无线承载,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;将所述业务消息映射到与其对应的所述业务专用无线承载;
    发送单元,用于通过PC5接口发送经过所述处理单元处理后的所述业务消息。
  26. 如权利要求25所述的第一终端,其特征在于,所述业务专用无线承 载满足其所对应的所述业务消息的服务质量QoS需求。
  27. 如权利要求25或26所述的第一终端,其特征在于,所述处理单元在配置用于业务消息传输的业务专用无线承载时,具体用于:
    根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
  28. 如权利要求25或26所述的第一终端,其特征在于,还包括:
    接收单元,用于接收网络侧设备配置的用于业务消息传输的业务专用无线承载;
    所述处理单元在配置用于业务消息传输的业务专用无线承载时,具体用于:
    将所述接收单元从网络侧设备接收的用于业务消息传输的业务专用无线承载,作为配置的用于业务消息传输的业务专用无线承载。
  29. 如权利要求28所述的第一终端,其特征在于,所述接收单元在接收网络侧设备配置的用于业务消息传输的业务专用无线承载时,具体用于:
    接收所述网络侧设备发送的映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
  30. 如权利要求28或29所述的第一终端,其特征在于,所述发送单元还用于:
    向所述网络侧设备发送业务请求消息;
    所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
  31. 如权利要求25至30任一所述的第一终端,其特征在于,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
  32. 如权利要求31所述的第一终端,其特征在于,所述处理单元在将所述业务消息映射到与其对应的所述业务专用无线承载时,具体用于:
    根据所述业务消息的层间原语和所述业务消息与业务专用无线承载的映 射关系,将所述业务消息映射到与其对应的所述业务专用无线承载,所述业务消息的层间原语包括所述业务消息的优先级和/或所述业务消息的消息类型。
  33. 如权利要求25至32任一所述的第一终端,其特征在于,所述业务消息对应的所述业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
    逻辑信道、所述逻辑信道标识、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
  34. 如权利要求33所述的第一终端,其特征在于,所述处理单元将所述业务消息映射到与其对应的所述业务专用无线承载之后,还用于:
    通过所述PDCP实体和所述RLC实体对所述业务消息进行处理,将处理后的所述业务消息映射到所述逻辑信道;
    生成包括所述业务消息和所述逻辑信道标识的媒体接入控制MAC协议数据单元PDU;
    所述发送单元在通过PC5接口发送经过所述处理单元处理后的所述业务消息时,具体用于:
    通过PC5接口发送所述处理单元生成的包括所述业务消息和所述逻辑信道标识的MAC PDU。
  35. 如权利要求34所述的第一终端,其特征在于,所述MAC PDU还包括业务标识,所述业务标识用于指示所述MAC PDU包括业务消息。
  36. 如权利要求35所述的第一终端,其特征在于,所述业务标识为业务消息的逻辑信道标识或目的地层2标识。
  37. 如权利要求34所述的第一终端,其特征在于,所述处理单元在生成包括所述业务消息和所述逻辑信道标识的MAC PDU时,具体用于:
    生成包括所述业务消息的MAC业务数据单元SDU;
    将所述MAC SDU封装在MAC中,所述MAC PDU包括至少一个MAC SDU,所述MAC PDU的包头中包括所述至少一个MAC SDU中每个MAC  SDU包括的业务消息对应的逻辑信道标识。
  38. 如权利要求34所述的第一终端,其特征在于,所述处理单元还用于:
    根据所述业务消息对应的所述业务专用无线的配置信息,为所述业务消息的逻辑信道分配传输资源。
  39. 如权利要求26所述的第一终端,其特征在于,所述业务消息的QoS需求包括以下之一或组合:
    优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
  40. 一种网络侧设备,其特征在于,包括:
    处理单元,用于配置用于业务消息传输的业务专用无线承载,所述业务消息在PC5接口上传输,所述业务消息包括以下之一或组合:车辆与车辆V2V业务消息、车辆与通信基础设施V2I业务消息、车辆与行人手持终端V2P业务消息;
    发送单元,用于将所述处理单元配置的所述用于业务消息传输的业务专用无线承载发送给第一终端。
  41. 如权利要求40所述的网络侧设备,其特征在于,所述业务专用无线承载满足其所对应的所述业务消息的服务质量QoS需求。
  42. 如权利要求40或41所述的网络侧设备,其特征在于,所述处理单元用于:
    根据所述业务消息的服务质量QoS需求,配置用于业务消息传输的业务专用无线承载。
  43. 如权利要求40至42任一所述的网络侧设备,其特征在于,所述发送单元具体用于:
    向所述第一终端发送映射模板,所述映射模板包括用于业务消息传输的业务专用无线承载。
  44. 如权利要求40至43任一所述的网络侧设备,其特征在于,还包括:
    接收单元,用于接收所述第一终端发送的业务请求消息;
    所述业务请求消息用于请求用于业务消息传输的业务专用无线承载,所 述业务请求消息以下之一或组合:所述业务消息的消息类型、优先级、时延、优先比特率PBR和保证比特率GBR。
  45. 如权利要求40至44任一所述的网络侧设备,其特征在于,所述业务专用无线承载包括所述业务消息与所述业务专用无线承载的映射关系。
  46. 如权利要求40至45任一所述的网络侧设备,其特征在于,所述用于业务消息传输的业务专用无线承载包括配置信息,所述配置信息包括以下之一或组合:
    逻辑信道、所述逻辑信道标识、映射关系、业务专用无线承载指示、业务专用无线承载的标识、分组数据汇聚协议PDCP实体和无线链路控制RLC实体。
  47. 如权利要求41所述的网络侧设备,其特征在于,所述业务消息的QoS需求包括以下之一或组合:
    优先级、时延、误码率丢包率、优先比特率PBR和保证比特率GBR。
  48. 如权利要求40至47任一所述的网络侧设备,其特征在于,所述网络侧设备包括基站;或者,所述网络侧设备包括基站和邻近业务功能实体ProSe Function。
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