WO2017101209A1 - 一种业务传输方法及装置 - Google Patents

一种业务传输方法及装置 Download PDF

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Publication number
WO2017101209A1
WO2017101209A1 PCT/CN2016/072869 CN2016072869W WO2017101209A1 WO 2017101209 A1 WO2017101209 A1 WO 2017101209A1 CN 2016072869 W CN2016072869 W CN 2016072869W WO 2017101209 A1 WO2017101209 A1 WO 2017101209A1
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WIPO (PCT)
Prior art keywords
transmission mode
service
air interface
transmission
delay tolerance
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PCT/CN2016/072869
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English (en)
French (fr)
Inventor
雷艺学
张云飞
郑倩
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2017101209A1 publication Critical patent/WO2017101209A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a service transmission method and apparatus.
  • D2D communication is a new technology that allows direct communication between devices. It is based on the 3rd Generation Partnership Project (3GPP) Rel. Communication mechanisms for direct communication between devices and devices are defined in -12 and Rel-13. For the existing D2D communication mechanism, it does not support the complete QoS mechanism, especially the delay feature, but only supports the priority mechanism and the retransmission mechanism. Therefore, for some new services that have strict requirements for end-to-end transmission delay, such as vehicle to the outside (Vehicle to X, referred to as "V2X”) service, the V2X collision avoidance service requires a delay of 20ms, and other V2X services generally require a delay of 100ms. The current D2D communication mechanism cannot meet the short delay requirement.
  • 3GPP 3rd Generation Partnership Project
  • the base station can only transmit the high-priority resources to the short-latency service as much as possible, which may cause a large number of services to compete for the priority resources, so that the high-priority service Resource competition occurs, so that the final delay cannot be guaranteed and the delay requirement of short-delay services cannot be met.
  • the technical problem to be solved by the embodiments of the present invention is to provide a service transmission method and apparatus for solving the problem that the delay requirement when performing service transmission cannot be satisfied.
  • the first aspect of the embodiments of the present invention provides a service transmission method, including:
  • the acquiring the air interface delay tolerance corresponding to the service request includes:
  • the air interface delay tolerance corresponding to the first transmission mode and the air interface delay tolerance corresponding to the second transmission mode are respectively obtained, where the first transmission mode is a transmission mode based on a Long Term Evolution (LTE) Uu interface, and the second transmission mode is a transmission mode based on the device and device D2D protocol;
  • LTE Long Term Evolution
  • a target transmission mode for transmitting the service for the service indicated by the service request, including:
  • the method further includes:
  • the target transmission mode of the service indicated by the service request including:
  • a target transmission mode for transmitting a service indication of the service request is determined.
  • the acquiring the air interface delay tolerance corresponding to the first transmission mode includes:
  • the difference between the end-to-end delay and the network side delay is used as an air interface delay tolerance corresponding to the first transmission mode.
  • the end-to-end delay of the service indicated by the service request is carried in the service request, or is notified by the network side.
  • the method before the obtaining the air interface delay tolerance corresponding to the service request, the method further includes:
  • a second aspect of the embodiments of the present invention provides a service transmission apparatus, including:
  • a receiving unit configured to receive a service request sent by the user equipment
  • a first acquiring unit configured to acquire an air interface delay tolerance corresponding to the service request
  • a transmission determining unit configured to select, according to the air interface delay tolerance acquired by the first acquiring unit, a target transmission mode for transmitting the service for the service indicated by the service request;
  • a resource allocation unit configured to allocate a transmission resource to the user equipment according to the target transmission mode selected by the transmission determining unit, so that the user equipment performs service transmission according to the target transmission mode and the transmission resource.
  • the first acquiring unit is specifically configured to:
  • the air interface delay tolerance corresponding to the first transmission mode and the air interface delay tolerance corresponding to the second transmission mode are respectively obtained, where the first transmission mode is a transmission mode based on a Long Term Evolution (LTE) Uu interface, and the second transmission mode is a transmission mode based on the device and device D2D protocol;
  • LTE Long Term Evolution
  • the transmission determining unit is specifically configured to:
  • the device further includes:
  • a second acquiring unit configured to separately acquire remaining resource information corresponding to the first transmission mode and remaining resource information corresponding to the second transmission mode
  • the transmission determining unit is specifically configured to:
  • a target transmission mode for transmitting a service indication of the service request is determined.
  • the specific manner in which the first acquiring unit acquires the air interface delay tolerance corresponding to the first transmission mode is:
  • the difference between the end-to-end delay and the network side delay is used as an air interface delay tolerance corresponding to the first transmission mode.
  • the end-to-end delay of the service indicated by the service request is carried in the service request, or is notified by the network side.
  • the device further includes:
  • the determining unit is configured to determine whether the service indicated by the service request is a service with a preset delay requirement, and notify the first acquiring unit that the service is a service with a preset delay requirement Obtaining an air interface delay tolerance corresponding to the service request.
  • the embodiment may obtain the air interface delay tolerance corresponding to the service request, and select, according to the obtained air interface delay tolerance, the service indicated by the service request for transmission.
  • the target transmission mode of the service is to allocate a transmission resource to the user equipment in the selected target transmission mode, and perform service transmission based on the target transmission mode and the allocated transmission resource, that is, the embodiment of the present invention can be based on the air interface delay tolerance. Select the service transmission mode to meet the business delay requirements.
  • FIG. 1 is a schematic diagram of a service transmission system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a service transmission method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart diagram of another service transmission method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of interaction of a service transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a service transmission apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another service transmission apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network such as the 5G network, is not limited here.
  • the user equipment may also be referred to as a terminal (Terminal), a terminal device, a mobile station (Mobile Station, referred to as “MS”), or a mobile terminal (Mobile Terminal). )Wait.
  • the user equipment may be a mobile terminal held by a user supporting the D2D protocol, or may be an in-vehicle terminal integrated in the vehicle.
  • the base station may be an evolved base station in the LTE, such as an eNB or an e-NodeB (evolutional Node B), or a base station in a future network, which is not limited by the embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a service transmission system according to an embodiment of the present invention.
  • the service transmission system includes a base station and a plurality of user equipments (two user equipments are shown in the figure), and the two user equipments may be based on Long Term Evolution (LTE).
  • LTE Long Term Evolution
  • the Uu interface performs service transmission or performs transmission based on the D5D protocol through the PC5 interface.
  • the embodiment of the invention discloses a service transmission method, device and network device, which can select a service transmission mode according to an air interface delay tolerance, so as to meet the delay requirement of the service. The details are explained below.
  • FIG. 2 is a schematic flowchart of a service transmission method according to an embodiment of the present invention. Specifically, as shown in FIG. 2, the method in the embodiment of the present invention may include the following steps:
  • the method in the embodiment of the present invention may be specifically applied to a base station of a service transmission system, or may be specifically applied to a network side device of the service transmission system, which is not limited in the embodiment of the present invention.
  • the end-to-end delay requirement of the service indicated by the service request is obtained, and the air interface delay capacity corresponding to the service is obtained according to the end-to-end delay requirement.
  • the service transmission mode is selected for the service based on the obtained air interface delay tolerance.
  • the end-to-end delay may be carried in the service request, or may be obtained by the base station, or may be notified by the network side, which is not limited by the embodiment of the present invention.
  • the target transmission mode may include a first transmission mode based on a Long Term Evolution (LTE) Uu interface or a second transmission mode based on a device and device D2D protocol, that is, a service transmission through a PC5 interface.
  • the first transmission mode may be a unicast or a broadcast mode, which is not limited in the embodiment of the present invention.
  • the delay requirement of the upper layer service is either from the application layer on the terminal side or from the control entity on the network side.
  • the base station acts as a radio resource management entity and does not know the delay tolerance of the air interface transmission. This affects the implementation of services such as the V2X short-latency service transmission scheme. Therefore, the service transmission mode and resource allocation can be selected to meet the service delay requirement by obtaining the delay tolerance that the air interface can allow.
  • the service transmission mode that is, the target, for transmitting the service may be selected according to the air interface delay tolerance information.
  • Transfer mode Specifically, the air interface delay tolerance corresponding to the first transmission mode of the LTE Uu interface and the air interface delay tolerance corresponding to the second transmission mode of the D2D protocol are respectively obtained, and the air interface delay capacity corresponding to the first transmission mode is obtained. Limiting the air interface delay tolerance corresponding to the second transmission mode, and determining, from the first transmission mode and the second transmission mode, a target transmission mode for transmitting the service indication indication service. For example, a transmission mode with a higher air interface delay tolerance is used as the target transmission mode.
  • the user equipment may be allocated a transmission resource according to the target transmission mode, so that the user equipment can perform service transmission according to the target transmission mode and the allocated transmission resource, so that the service is satisfied.
  • Business delay requirements After determining the target transmission mode for performing the service transmission, the user equipment may be allocated a transmission resource according to the target transmission mode, so that the user equipment can perform service transmission according to the target transmission mode and the allocated transmission resource, so that the service is satisfied.
  • the The air interface delay tolerance corresponding to the service request and according to the obtained air interface delay tolerance, select a target transmission mode for transmitting the service for the service indicated by the service request, to be a user equipment in the selected target transmission mode.
  • the transmission resource is allocated, and the service transmission is performed based on the target transmission mode and the allocated transmission resource. That is, the embodiment of the present invention can select the service transmission mode according to the air interface delay tolerance, thereby being able to meet the service delay requirement.
  • FIG. 3 is a schematic flowchart diagram of another service transmission method according to an embodiment of the present invention. Specifically, as shown in FIG. 3, the method in the embodiment of the present invention may include the following steps:
  • the method in the embodiment of the present invention may be specifically applied to a base station in a service transmission system, or may be specifically applied to a network side device in the service transmission system.
  • the example is explained.
  • the end-to-end delay request may be included in the service request for sending.
  • the base station such as an eNB, receives a service request sent by the UE.
  • the end-to-end delay requirement may be maintained on the network side, and the UE may include only the service type information of the service in the end delay indication.
  • the end-to-end delay requirement information may be that the UE informs the eNB by using a Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • the service with the preset delay requirement may be a short-latency service with a high latency requirement, such as a V2X collision avoidance service.
  • the service of the preset delay requirement may be pre-configured according to the service type information or the end-to-end delay requirement information, for example, a certain type of service, such as a V2X service, is used as the service of the preset delay requirement.
  • the service of the end-to-end delay requirement is lower than a predetermined threshold, and the service is not limited.
  • step 203 may be performed; otherwise, the resource may be scheduled or allocated according to the original communication mechanism, and details are not described herein again.
  • the service request may further carry other information, such as information for allowing the network side to perform necessary authorization on the UE and the service, and if the information is not required by the eNB, the information may be placed.
  • NAS Network Attached Storage
  • ProSe Function Proximity Based Services Function
  • the interaction between the UE and the ProSe function has a PC3 interface
  • the PC3 message cannot be recognized by the eNB (especially in the case where the security tunnel is used on the PC3 interface). Therefore, in the embodiment of the present invention, the RRC can be adopted.
  • the message informs the eNB of its short-latency service request.
  • the embodiment of the present invention assumes an interface between the eNB and the ProSe function, and on the interface, there may be a per-UE or per-cell control connection. Specifically, if it is a control connection of the per-UE, the UE transparently transmits to the ProSe Function by the eNB through the identifier of the unique per-UE of the interface that the eNB can identify; if it is the per-cell control connection, the eNB The container can be directly sent to the ProSe function, and the content of the container is identified by the ProSe function, which may occur at the application layer.
  • the eNB may perform authentication with the network side entity according to the message in the service request sent by the UE. Authentication may be based on the content of the container sent by the UE to the network side entity. After the authentication is passed, the delay tolerance of the air interface can be estimated through the network side.
  • the acquiring the air interface delay tolerance corresponding to the first transmission mode may be specifically: obtaining an end-to-end delay of the service indicated by the service request, and estimating, by using a network side, a network corresponding to the service a side delay; a difference between the end-to-end delay and the network side delay is used as an air interface delay tolerance corresponding to the first transmission mode.
  • the end-to-end delay may be carried in the service request, or may be obtained by a base station lookup table, or may be notified by the network side.
  • the obtaining the air interface delay tolerance corresponding to the second transmission mode may be specifically: using an end-to-end delay of the service indicated by the service request as an air interface delay corresponding to the second transmission mode. Tolerance.
  • the first transmission mode is a transmission mode based on the LTE Uu interface, that is, the service transmission through the Uu interface
  • the second transmission mode is a transmission mode based on the D2D protocol, that is, the service transmission through the PC5 interface.
  • the first transmission mode may be a unicast or a broadcast mode, which is not limited in the embodiment of the present invention.
  • the network side needs to estimate the network side delay, and subtracts the network side delay from the overall end-to-end delay, and reduces the overall end-to-end delay. go with The difference of the network side delay is used as the air interface delay tolerance corresponding to the Uu transmission mode.
  • the D2D transmission mode ie the second transmission mode, there is no need to estimate the network side delay. If the UE does not inform the base station of the end-to-end transmission delay information, the end-to-end delay can be notified to the base station through the network side.
  • the network side delay in the Uu transmission mode may need to consider the S1 interface, the X2 interface, and the delays associated with the MBMS and SC-PTM interfaces, which can be statistically obtained through actual monitoring.
  • the remaining resource information corresponding to the first transmission mode and the remaining resource information corresponding to the second transmission mode are respectively acquired; and the air interface delay tolerance corresponding to the first transmission mode is further And determining, by the first transmission mode and the second transmission mode, a target transmission mode for transmitting the service indication indication service, which may be specifically: according to the air interface delay tolerance corresponding to the second transmission mode
  • the air interface delay tolerance and the remaining resource information corresponding to the first transmission mode, the air interface delay tolerance corresponding to the second transmission mode, and remaining resource information are determined from the first transmission mode and the second transmission mode.
  • a target transmission mode for transmitting a service indicated by the service request may be specifically: according to the air interface delay tolerance corresponding to the second transmission mode.
  • the Uu transmission may be determined according to the air interface delay tolerance information and/or the Uu resource status of the eNB (ie, the remaining resource information) and the D2D resource status.
  • the mode is also the PC5 mode, that is, the D2D transmission mode.
  • the transmission mode with a higher air interface delay tolerance can be used as the target transmission mode; for example, if the Uu transmission resource is tight and the PC5 resource configuration is sufficient, the PC5 mode can be selected as the target transmission mode; for example, the resource The number of pool resources can meet the traffic requirements and the period is short. If the control period is 10ms, the PC5 mode can be selected as the target transmission mode.
  • the eNB may provide an air interface delay tolerance according to the network side to determine whether the requirement can be met. If not, the eNB may reject the service; or may support the service, but indicate the service to the network side. The delay satisfies the probability. Thus the indication information can be used by the network operator to optimize the configuration of the network resources and the estimation of the air interface delay tolerance and the like.
  • the eNB may configure different periods for different resource pools, a short period is used to support short-latency services, or a scheduling mode may be used to implement short-delay transmission. Further, if the service has been assigned a transmission mode, the base station may perform resource allocation according to the specified transmission mode and the air interface delay tolerance corresponding to the transmission mode.
  • the base station may notify the UE through the PC3 interface, or may notify the UE by using the existing RRC message through the Uu interface, which is not limited in the embodiment of the present invention.
  • the base station when receiving the service request sent by the user equipment, may determine whether the service indicated by the service request is a preset short-latency service, and obtain the Uu transmission mode when the service is short-delayed. And an air interface delay tolerance corresponding to the D2D transmission mode, to select a target transmission mode for transmitting the service from the Uu transmission mode and the D2D transmission mode according to the acquired air interface delay tolerance, to select the target transmission mode.
  • the user equipment is allocated a transmission resource, and the service transmission is performed based on the target transmission mode and the allocated transmission resource.
  • the embodiment of the invention enables the base station to more accurately consider the delay requirement when selecting the data transmission using the D2D or Uu transmission mode according to the delay tolerance estimated by the network side during short-delay service transmission, and supports the delay tolerance according to the delay tolerance. And the resource status selects the D2D or Uu transmission mode, so as to meet the short delay requirement of the service.
  • FIG. 4 is a schematic diagram of interaction of a service transmission method according to an embodiment of the present invention. Specifically, as shown in FIG. 4, the method in the embodiment of the present invention may include the following steps:
  • the UE1 When a short-latency service transmission is required, the UE1 sends a service request to the eNB, where the service request can carry end-to-end delay requirement information.
  • the end-to-end delay requirement information may be that the UE1 informs the eNB by using an RRC message.
  • the eNB After receiving the service request of the UE1, the eNB can obtain the end-to-end delay information of the service request indication service, and the network side CN estimates the air interface delay tolerance according to the end-to-end delay information. Specifically, for the Uu transmission mode, the network side needs to estimate the network side delay, and subtracts the network side delay from the overall end-to-end delay, and the overall end-to-end delay minus the network-side delay difference is It can be used as the air interface delay tolerance corresponding to the Uu transmission mode. For the PC5 transmission mode, that is, the D2D transmission mode, it is not necessary to estimate the network side delay, and the end-to-end delay is the air interface delay tolerance corresponding to the D2D transmission mode. If the UE does not inform the eNB of the end-to-end delay requirement information, the network side may inform the eNB of the end-to-end delay. among them, Various network function entities and server clusters may be included in the network side CN.
  • the eNB may further acquire the Uu residual resource information and the PC5 remaining resource information, so that the eNB may determine, according to the Uu mode and the PC5 mode air interface delay tolerance information and/or the resource status of each transmission mode, the target corresponding to the service request is selected.
  • Transfer mode For example, a transmission mode with a higher air interface delay tolerance, such as the Uu mode, is used as the target transmission mode; for example, when the Uu transmission resource is tight and the PC5 resource configuration is sufficient, the PC5 mode can be used as the target transmission mode.
  • the eNB may allocate the transmission resource to the service according to the selected target transmission mode, and send the information of the target transmission mode to the UE1, so that the UE1 according to the target transmission mode and allocation
  • the resource completes the service transmission of the short delay service between the UE2. Specifically, if the selected transmission mode is the PC5 mode, step 305 is performed; otherwise, if the selected transmission mode is the Uu mode, step 306 is performed.
  • the information of the target transmission mode may be notified to the UE1 through the PC3 interface, or may be notified to the UE1 by using the RRC message through the Uu interface, which is not limited in the embodiment of the present invention.
  • the eNB may provide an air interface delay tolerance according to the network side to determine whether the requirement can be met. If not, the eNB may reject the service; or may support the service, but indicate the service to the network side. The delay satisfies the probability that the network operator can be used to optimize the configuration of the network resources and the estimation of the air interface delay tolerance.
  • the eNB may configure different periods for different resource pools, such as a short period to support short-latency services, or a scheduling mode to implement short-latency transmission.
  • the eNB when performing short-latency service transmission, the eNB can more accurately consider the delay requirement when selecting the data transmission using the D2D or Uu transmission mode according to the delay tolerance estimated by the network side, and support the delay tolerance and the resource status according to the delay tolerance and the resource status.
  • the D2D or Uu transmission mode is selected for service transmission, so as to meet the short delay requirement of the service.
  • FIG. 5 is a schematic structural diagram of a service transmission apparatus according to an embodiment of the present invention.
  • the service transmission apparatus may include a receiving unit 11, a first obtaining unit 12, a transmission determining unit 13, and a resource allocating unit 14. among them,
  • the receiving unit 11 is configured to receive a service request sent by the user equipment.
  • the service transmission apparatus in the embodiment of the present invention may be specifically configured in a base station, such as an eNB or a network device on the network side, and the service transmission apparatus may be independently configured, which is not limited in the embodiment of the present invention.
  • the first obtaining unit 12 is configured to acquire an air interface delay tolerance corresponding to the service request.
  • the first obtaining unit 12 may obtain the end-to-end delay requirement of the service indicated by the service request, thereby obtaining the end-to-end delay requirement according to the end-to-end delay requirement.
  • the air interface delay tolerance corresponding to the service is obtained, and the service transmission mode is selected for the service based on the obtained air interface delay tolerance.
  • the end-to-end delay of the service indicated by the service request is carried in the service request, or is notified by the network side, which is not limited in the embodiment of the present invention.
  • the transmission determining unit 13 is configured to select, according to the air interface delay tolerance acquired by the first acquiring unit 12, a target transmission mode for transmitting the service for the service indicated by the service request.
  • the first acquiring unit 12 may be specifically configured to:
  • the first transmission mode is a transmission mode based on a Long Term Evolution (LTE) Uu interface
  • the second transmission mode is a transmission mode based on the device and device D2D protocol
  • the transmission determining unit 13 may be specifically configured to:
  • the specific manner in which the first acquiring unit 12 obtains the air interface delay tolerance corresponding to the first transmission mode is:
  • the specific manner in which the first acquiring unit 12 obtains the air interface delay tolerance corresponding to the second transmission mode is:
  • the end-to-end delay of the service indicated by the service request is used as an air interface delay tolerance corresponding to the second transmission mode.
  • the first transmission mode may be a unicast or a broadcast mode, and the embodiment of the present invention does not do limited.
  • the transmission determining unit 13 may delay the tolerance according to the air interface.
  • the information is used to select a service transmission mode for transmitting the service, that is, a target transmission mode, for example, a transmission mode in which the Uu transmission mode and the air interface delay tolerance corresponding to the D2D transmission mode have a higher delay tolerance of the air interface as the target transmission mode.
  • the resource allocation unit 14 is configured to allocate a transmission resource to the user equipment according to the target transmission mode selected by the transmission determining unit 13, so that the user equipment performs according to the target transmission mode and the transmission resource. Business transmission.
  • the resource allocation unit 14 may allocate the transmission resource to the user equipment according to the target transmission mode, so that the user equipment can according to the target transmission mode and the allocated transmission. Resources are used for service transmission, so that business delay requirements are met.
  • the air interface delay tolerance corresponding to the service request is obtained, and according to the obtained air interface delay tolerance, the service indicated by the service request is selected.
  • a target transmission mode for transmitting the service to allocate a transmission resource to the user equipment in the selected target transmission mode, and perform service transmission based on the target transmission mode and the allocated transmission resource, that is, the embodiment of the present invention can delay according to the air interface. Tolerant to select the service transmission mode to meet the business delay requirements.
  • FIG. 6 is a schematic structural diagram of another service transmission apparatus according to an embodiment of the present invention.
  • the apparatus of the embodiment of the present invention may include the receiving unit 11, the first obtaining unit 12, the transmission determining unit 13, and the resource allocating unit 14 of the service transmission apparatus in the foregoing embodiment of FIG. , will not repeat them here.
  • the device may further include:
  • the determining unit 15 is configured to determine whether the service indicated by the service request is a service with a preset delay requirement, and notify the first acquisition if the service result is a service with a preset delay requirement.
  • Unit 12 obtains an air interface delay tolerance corresponding to the service request.
  • the service with the preset delay requirement may be a short-latency service with a high latency requirement, such as a V2X collision avoidance service.
  • the service required by the preset delay may be pre-configured according to the type information of the service or the end-to-end delay requirement information, for example, a certain type of service, such as a V2X service, is used as the service.
  • the service of the preset delay requirement, or the service in which the end-to-end delay requirement is lower than a predetermined threshold is used as the service of the preset delay requirement, and the like, which is not limited in the embodiment of the present invention.
  • the apparatus may further include:
  • the second acquiring unit 16 is configured to separately acquire remaining resource information corresponding to the first transmission mode and remaining resource information corresponding to the second transmission mode;
  • the transmission determining unit 13 may be specifically configured to:
  • a target transmission mode for transmitting a service indication of the service request is determined.
  • the Uu resource status and the D2D resource status information may be acquired by the second obtaining unit 16, so that the transmission determining unit 13 can delay the tolerance information according to the air interface when selecting the service transmission mode and the target transmission mode for performing service transmission. And/or Uu resource status, D2D resource status to determine whether to select the Uu transmission mode or the PC5 mode, that is, the D2D transmission mode.
  • the transmission determining unit 13 may use the transmission mode with a higher air interface delay tolerance as the target transmission mode; for example, if the Uu transmission resource is tight and the PC5 resource configuration is sufficient, the transmission determining unit 13 may use the PC5 mode as the The target transmission mode; for example, the number of resource pool resources can meet the traffic requirement and the period is short. If the control period is 10 ms, the transmission determining unit 13 can select the PC5 mode as the target transmission mode.
  • the service transmission when receiving the service request sent by the user equipment, determining whether the service indicated by the service request is a preset short-latency service, and acquiring the Uu transmission mode and the short-delay service respectively The air interface delay tolerance corresponding to the D2D transmission mode, to select a target transmission mode for transmitting the service from the Uu transmission mode and the D2D transmission mode according to the acquired air interface delay tolerance, in the selected target transmission mode.
  • a transmission resource is allocated to the user equipment, and the service transmission is performed based on the target transmission mode and the allocated transmission resource.
  • the embodiment of the invention enables the base station to more accurately consider the delay requirement when selecting the data transmission using the D2D or Uu transmission mode according to the delay tolerance estimated by the network side during short-delay service transmission, and supports the delay tolerance according to the delay tolerance. And the resource status selects the D2D or Uu transmission mode, so as to meet the short delay requirement of the service.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device in the embodiment of the present invention may be specifically the foregoing base station or network side device, where the network device includes: a communication interface 300, a memory 200, and a processor 100, and the processor 100 and the communication interface respectively 300 and the memory 200 are connected.
  • the memory 200 can be a high speed RAM
  • the memory may also be a non-volatile memory such as at least one disk storage.
  • the communication interface 300, the memory 200, and the processor 100 may be connected to each other through a bus, or may be connected by other means. In the present embodiment, a bus connection will be described. among them,
  • the memory 200 is configured to store driver software
  • the processor 100 reads the driver software from the memory 200 and executes it under the action of the driver software:
  • a target transmission mode for transmitting the service where the target transmission mode is based on a first transmission mode of the Long Term Evolution (LTE) Uu interface, or a second transmission mode based on the device and device D2D protocol;
  • LTE Long Term Evolution
  • the processor 100 reads the driver software from the memory 200 and performs the acquiring the air interface delay tolerance corresponding to the service request by using the driver software, and specifically performing the following steps:
  • a target transmission mode for transmitting the service for the service indicated by the service request, including:
  • the processor 100 reads the driver software from the memory 200 and, under the action of the driver software, is further configured to perform the following steps:
  • Determining a target transmission from the first transmission mode and the second transmission mode according to the air interface delay tolerance corresponding to the first transmission mode and the air interface delay tolerance corresponding to the second transmission mode Loss mode including:
  • a target transmission mode for transmitting a service indication of the service request is determined.
  • the processor 100 reads the driver software from the memory 200 and performs the acquiring the air interface delay tolerance corresponding to the first transmission mode by using the driver software, and performing the following steps. :
  • the difference between the end-to-end delay and the network side delay is used as an air interface delay tolerance corresponding to the first transmission mode.
  • the processor 100 reads the driver software from the memory 200 and performs the acquiring the air interface delay tolerance corresponding to the second transmission mode by using the driver software, and specifically performing the following steps. :
  • the end-to-end delay of the service indicated by the service request is used as an air interface delay tolerance corresponding to the second transmission mode.
  • the end-to-end delay of the service indicated by the service request is carried in the service request, or is notified by the network side.
  • the processor 100 reads the driver software from the memory 200 and performs the obtaining of the air interface delay tolerance corresponding to the service request under the action of the driver software, and is further used to execute The following steps:
  • the step of acquiring the air interface delay tolerance corresponding to the service request is performed.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some special The sign can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention 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 hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps.
  • 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, which can store program codes. .

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Abstract

本发明实施例公开了一种业务传输方法，包括：接收用户设备发送的业务请求；获取与所述业务请求对应的空口延迟容限；根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式；根据选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。本发明实施例还公开了一种业务传输装置。采用本发明实施例，能够根据空口延迟容限来选择业务传输模式，从而能够满足短时延业务的时延需求。

Description

一种业务传输方法及装置 技术领域
本发明涉及通信技术领域，尤其涉及一种业务传输方法及装置。
背景技术
设备与设备(Device to Device，简称为“D2D”)通信是一种允许设备之间直接进行通信的新型技术，其在第三代合作伙伴计划(3rd Generation Partnership Project，简称为“3GPP”)Rel-12和Rel-13中定义了设备与设备之间直接通信的通信机制。对于现有的D2D通信机制，其尚不支持完整的QoS机制，特别是时延特性，而仅是支持优先级机制和重传机制。由此，对于出现的一些对端到端的传输时延有严格要求的新业务，比如车与外界(Vehicle to X，简称为“V2X”)业务，其V2X防撞业务要求时延在20ms，其他V2X业务一般也要求时延在100ms，目前的D2D通信机制则无法满足该短时延需求。对于该短时延业务，基站只能通过尽可能的给该短时延业务调度高优先级的资源来进行传输，这有可能会导致大量业务争夺该优先级资源，使得高优先级的业务之间产生资源竞争，从而最终的时延并不能得到保证，无法满足短时延业务的时延需求。
发明内容
本发明实施例所要解决的技术问题在于，提供一种业务传输方法及装置，用于解决进行业务传输时的时延需求无法满足的问题。
为了解决上述技术问题，本发明实施例第一方面提供了一种业务传输方法，包括：
接收用户设备发送的业务请求；
获取与所述业务请求对应的空口延迟容限；
根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式；
根据选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用 户设备根据所述目标传输模式和所述传输资源进行业务传输。
可选的，所述获取与所述业务请求对应的空口延迟容限，包括：
分别获取第一传输模式对应的空口延迟容限以及第二传输模式对应的空口延迟容限，其中，所述第一传输模式为基于长期演进LTE Uu接口的传输模式，所述第二传输模式为基于设备与设备D2D协议的传输模式；
所述根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式，包括：
根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
可选的，所述方法还包括：
分别获取所述第一传输模式对应的剩余资源信息和所述第二传输模式对应的剩余资源信息；
所述根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式，包括：
根据所述第一传输模式对应的空口延迟容限及剩余资源信息、所述第二传输模式对应的空口延迟容限及剩余资源信息，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
可选的，所述获取第一传输模式对应的空口延迟容限，包括：
获取所述业务请求指示的业务的端到端时延，并通过网络侧估算所述业务对应的网络侧延迟；
将所述端到端时延与所述网络侧延迟的差值作为与所述第一传输模式对应的空口延迟容限。
可选的，所述业务请求指示的业务的端到端时延是携带于所述业务请求中的，或者是由网络侧通知的。
可选的，在所述获取与所述业务请求对应的空口延迟容限之前，所述方法还包括：
判断所述业务请求指示的业务是否为有预设时延需求的业务；
若为有预设时延需求的业务，则执行所述获取与所述业务请求对应的空口 延迟容限的步骤。
本发明实施例第二方面提供了一种业务传输装置，包括：
接收单元，用于接收用户设备发送的业务请求；
第一获取单元，用于获取与所述业务请求对应的空口延迟容限；
传输确定单元，用于根据所述第一获取单元获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式；
资源分配单元，用于根据所述传输确定单元选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。
可选的，所述第一获取单元具体用于：
分别获取第一传输模式对应的空口延迟容限以及第二传输模式对应的空口延迟容限，其中，所述第一传输模式为基于长期演进LTE Uu接口的传输模式，所述第二传输模式为基于设备与设备D2D协议的传输模式；
所述传输确定单元具体用于：
根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
可选的，所述装置还包括：
第二获取单元，用于分别获取所述第一传输模式对应的剩余资源信息和所述第二传输模式对应的剩余资源信息；
所述传输确定单元具体用于：
根据所述第一传输模式对应的空口延迟容限及剩余资源信息、所述第二传输模式对应的空口延迟容限及剩余资源信息，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
可选的，所述第一获取单元获取第一传输模式对应的空口延迟容限的具体方式为：
获取所述业务请求指示的业务的端到端时延，并通过网络侧估算所述业务对应的网络侧延迟；
将所述端到端时延与所述网络侧延迟的差值作为与所述第一传输模式对应的空口延迟容限。
可选的，所述业务请求指示的业务的端到端时延是携带于所述业务请求中的，或者是由网络侧通知的。
可选的，所述装置还包括：
判断单元，用于判断所述业务请求指示的业务是否为有预设时延需求的业务，并在判断结果为所述业务为有预设时延需求的业务，则通知所述第一获取单元获取与所述业务请求对应的空口延迟容限。
实施本发明实施例，具有如下有益效果：
本发明实施例可在接收用户设备发送的业务请求时，通过获取与该业务请求对应的空口延迟容限，并根据该获取的空口延迟容限，为该业务请求指示的业务选择出用于传输该业务的目标传输模式，以在选择出的目标传输模式下为用户设备分配传输资源，并基于该目标传输模式及分配的传输资源进行业务传输，即本发明实施例能够根据空口延迟容限来选择业务传输模式，从而能够满足业务时延需求。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种业务传输系统示意图；
图2是本发明实施例提供的一种业务传输方法的流程示意图；
图3是本发明实施例提供的另一种业务传输方法的流程示意图；
图4是本发明实施例提供的一种业务传输方法的交互示意图；
图5是本发明实施例提供的一种业务传输装置的结构示意图；
图6是本发明实施例提供的另一种业务传输装置的结构示意图；
图7是本发明实施例提供的一种网络设备的结构示意图。
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作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。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”和“第三”等是用于区别不同对象，而非用于描述特定顺序。此外，术语“包括”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
应理解，本发明实施例的技术方案可具体应用于长期演进(Long Term Evolution，简称为“LTE”)系统中，随着通信技术的不断发展，本发明实施例的所述方法还可用于未来网络，如5G网络，此处不做限定。
在本发明实施例中，用户设备(User Equipment，简称为“UE”)还可称之为终端(Terminal)、终端设备、移动台(Mobile Station，简称为“MS”)或移动终端(Mobile Terminal)等。该用户设备可以是支持D2D协议的用户手持的移动终端，也可以是集成在车辆内的车载终端。基站可以是LTE中的演进型基站，如eNB或e-NodeB(evolutional Node B)，或未来网络中的基站，本发明实施例不做限定。
请参见图1，是本发明实施例提供的一种业务传输系统示意图。如图1所示，该业务传输系统中包括基站以及多个用户设备(图中示出两个用户设备)，该两个用户设备之间可基于长期演进(Long Term Evolution，简称为“LTE”)Uu接口进行业务传输或者基于D2D协议即通过PC5接口来进行业务传输。
本发明实施例公开了一种业务传输方法、装置及网络设备，能够根据空口延迟容限来选择业务传输模式，从而能够满足业务的时延需求。以下分别详细说明。
请参阅图2，图2是本发明实施例提供的一种业务传输方法的流程示意图。具体的，如图2所示，本发明实施例的所述方法可以包括以下步骤：
101、接收用户设备发送的业务请求。
需要说明的是，本发明实施例的所述方法可具体应用于业务传输系统的基站中，或者，还可具体应用于该业务传输系统的网络侧设备中，本发明实施例不做限定。
102、获取与所述业务请求对应的空口延迟容限。
具体实施例中，在接收到用户设备的业务请求时，即可获取得到该业务请求指示的业务的端到端时延需求，从而根据该端到端时延需求获取该业务对应的空口延迟容限，以基于该获取的空口延迟容限为该业务选取业务传输模式。
可选的，该端到端时延可以是携带于所述业务请求中的，或者是由基站查表得到的，或者是由网络侧通知的，本发明实施例不做限定。
103、根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式。
其中，所述目标传输模式可包括基于长期演进LTE Uu接口的第一传输模式或基于设备与设备D2D协议即通过PC5接口进行业务传输的第二传输模式。可选的，该第一传输模式可以是单播或者广播的方式，本发明实施例不做限定。
对于D2D或者Uu传输模式来说，从协议的角度，上层业务的时延需求，要么来自于终端侧的应用层，要么来自于网络侧的控制实体。基站作为了一个无线资源管理实体，并不知道空口传输的延迟容限，这就会影响到有时延需求的业务如V2X短时延业务传输方案的实现。因此，可通过获取空口能够允许的延迟容限，来选择业务传输方式并进行资源分配以满足业务时延需求。
具体实施例中，在接收到用户设备业务请求，并获取得到该业务请求指示业务对应的空口延迟容限之后，即可根据该空口延迟容限信息来选择传输该业务的业务传输模式，即目标传输模式。具体的，可通过分别获取基于LTE Uu接口的第一传输模式对应的空口延迟容限以及基于D2D协议的第二传输模式对应的空口延迟容限，并根据该第一传输模式对应的空口延迟容限以及该第二传输模式对应的空口延迟容限，从该第一传输模式和该第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。如将空口延迟容限较高的传输模式作为该目标传输模式。
104、根据选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。
在确定出用于进行业务传输的目标传输模式之后，即可根据该目标传输模式为用户设备分配传输资源，从而用户设备能够根据该目标传输模式以及该分配的传输资源来进行业务传输，使得满足了业务时延需求。
在本发明实施例中，可在接收用户设备发送的业务请求时，通过获取与该 业务请求对应的空口延迟容限，并根据该获取的空口延迟容限，为该业务请求指示的业务选择出用于传输该业务的目标传输模式，以在选择出的目标传输模式下为用户设备分配传输资源，并基于该目标传输模式及分配的传输资源进行业务传输，即本发明实施例能够根据空口延迟容限来选择业务传输模式，从而能够满足业务时延需求。
请参阅图3，图3是本发明实施例提供的另一种业务传输方法的流程示意图。具体的，如图3所示，本发明实施例的所述方法可以包括以下步骤：
201、接收用户设备发送的业务请求。
需要说明的是，本发明实施例的所述方法可具体应用于业务传输系统中的基站中，或者，还可具体应用于该业务传输系统中的网络侧设备中，本发明实施例以基站为例进行说明。
具体的，若UE的应用层能够获取到端到端时延要求，则可将该端到端时延要求包含在该业务请求中进行发送。基站如eNB接收该UE发送的业务请求。若UE的应用层无法获取端到端时延需求信息，则该该端到端时延需求可能是维护在网络侧的，则UE在端时延指示中可仅包括该业务的业务类型信息。可选的，该端到端时延需求信息可以是UE通过无线资源控制(Radio Resource Control，简称为“RRC”)消息告知eNB的。
202、判断所述业务请求指示的业务是否为有预设时延需求的业务。
其中，该有预设时延需求的业务可以是指时延要求较高的短时延业务，如V2X防撞业务等等。可选的，该预设时延需求的业务可根据业务的类型信息或端到端时延需求信息预先配置得到，比如将某一类业务如V2X业务均作为该预设时延需求的业务，或者将端到端时延需求低于某一预设阈值的业务作为该预设时延需求的业务，等等，本发明实施例不做限定。
具体的，若判断结果为当前业务请求指示的业务为该有预设时延需求的业务，则可执行步骤203；否则，可按照原有通信机制进行调度或分配资源，此处不再赘述。
203、获取第一传输模式对应的空口延迟容限。
204、获取第二传输模式对应的空口延迟容限。
进一步的，该业务请求中还可携带其他信息，如用于允许网络侧对UE以及该业务进行必要的授权的信息，这些信息如果是eNB不需要识别的，则可以放 在网络附属存储(Network Attached Storage，简称为“NAS”)容器container或者其他container中，以实现UE与其他核心网实体和临近服务功能实体(Proximity Based Services Function，简称为“ProSe Function”)即D2D功能实体的交互。
需要说明的是，UE与ProSe function的交互虽然有PC3接口，但是由于PC3消息无法被eNB识别(特别是在PC3接口使用了security tunnel的情况下)，因此，在本发明实施例中可通过RRC消息来通知eNB其短时延业务请求。
进一步的，本发明实施例假设了eNB和ProSe function之间的接口，并且，在该接口上，可以存在per-UE或者per-cell的控制连接。具体的，如果是per-UE的控制连接，则UE通过eNB透传给ProSe Function的container通过eNB可以识别的本接口唯一per-UE的标识来实现；如果是per-cell的控制连接，则eNB可直接将container发送到ProSe function，由ProSe function对container的内容进行识别，该识别可能发生在应用层。
具体的，eNB根据UE发送的业务请求中的消息，可与网络侧实体进行认证。认证可以基于UE发送到网络侧实体的container的内容来进行。认证通过后，则可通过网络侧对空口的延迟容限进行估计。
可选的，所述获取所述第一传输模式对应的空口延迟容限，可以具体为：获取所述业务请求指示的业务的端到端时延，并通过网络侧估算所述业务对应的网络侧延迟；将所述端到端时延与所述网络侧延迟的差值作为与所述第一传输模式对应的空口延迟容限。其中，该端到端时延可以是携带于所述业务请求中的，或者可以是由基站查表得到的，或者可以是由网络侧通知的。
可选的，所述获取所述第二传输模式对应的空口延迟容限，可以具体为：将所述业务请求指示的业务的端到端时延作为与所述第二传输模式对应的空口延迟容限。
其中，该第一传输模式为基于LTE Uu接口即通过Uu接口进行业务传输的传输模式，该第二传输模式为基于D2D协议即通过PC5接口进行业务传输的传输模式。可选的，该第一传输模式可以是单播或者广播的方式，本发明实施例不做限定。
具体的，对于Uu传输模式即第一传输模式来说，网络侧需要估计网络侧延迟，并从总体的端到端时延中减去网络侧的延迟，将该总体的端到端时延减去 网络侧延迟的差值作为该Uu传输模式对应的空口延迟容限。对于D2D传输模式即第二传输模式来说，则不需要估计网络侧延迟。若UE没有告知基站端到端传输时延信息，则可通过网络侧将端到端时延告知基站。
需要说明的是，Uu传输模式下的网络侧延迟可能需要考虑S1接口，X2接口以及与MBMS和SC-PTM接口相关的延迟，这些延迟可通过实际的监测来统计得到。
205、根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
进一步可选的，还可分别获取所述第一传输模式对应的剩余资源信息和所述第二传输模式对应的剩余资源信息；则所述根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式，可以具体为：根据所述第一传输模式对应的空口延迟容限及剩余资源信息、所述第二传输模式对应的空口延迟容限及剩余资源信息，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
具体的，在选择用于进行业务传输的业务传输模式及目标传输模式时，可根据空口延迟容限信息和/或eNB的Uu资源状况(即剩余资源信息)、D2D资源状况来确定选择Uu传输模式还是PC5方式即D2D传输模式。比如，可将空口延迟容限较高的传输模式作为该目标传输模式；又比如，若Uu传输资源紧张，而PC5资源配置较充分，则可选择PC5方式作为该目标传输模式；又比如，资源池资源数量能满足业务量要求且周期较短，如控制周期在10ms，则可以选择PC5方式作为该目标传输模式。
206、根据选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。
具体的，对于Uu传输模式，eNB可以根据网络侧提供空口延迟容限，判断能否满足该需求，如果不能，则可以拒绝该业务；或者可以支持该业务，但是须向网络侧指示该业务的时延满足概率。从而该指示信息可以被网络运营者用于优化网络资源的配置以及空口延迟容限的估计等等。对于PC5方式即D2D传 输模式，eNB可以为不同的资源池配置不同的周期，短的周期用于支持短时延业务；或者可以采用调度模式，实现短时延的传输。进一步可选的，若该业务已经被指定了传输模式，则基站可根据指定的传输模式及该传输模式对应的空口延迟容限进行资源分配。
在确定用于进行业务传输的业务传输模式即目标传输模式之后，基站可以通过PC3接口通知UE，或者还可以通过Uu口使用现有的RRC消息通知UE，本发明实施例不做限定。
在本发明实施例中，基站可在接收用户设备发送的业务请求时，通过判断该业务请求指示的业务是否为预设的短时延业务，并在为短时延业务时分别获取Uu传输模式和D2D传输模式对应的空口延迟容限，以根据该获取的空口延迟容限从该Uu传输模式和D2D传输模式中选择出用于传输该业务的目标传输模式，以在选择出的目标传输模式下为用户设备分配传输资源，并基于该目标传输模式及分配的传输资源进行业务传输。本发明实施例使得在短时延业务传输时，基站能够根据网络侧估计的延迟容限，在选择采用D2D或Uu传输模式进行数据传输时更加精确地考虑时延要求，并支持根据延迟容限和资源状况选择D2D或者Uu传输模式，从而能够满足业务的短时延需求。
进一步的，请参阅图4，图4是本发明实施例提供的一种业务传输方法的交互示意图。具体的，如图4所示，本发明实施例的所述方法可以包括以下步骤：
301、发起业务请求。
在需要进行有时延需求的短时延业务传输时，UE1向eNB发送业务请求，该业务请求中可携带端到端时延需求信息。其中，该端到端时延需求信息可以是UE1通过RRC消息告知eNB的。
302、估计空口延迟容限。
eNB在接收到UE1的业务请求之后，即可获取该业务请求指示业务的端到端时延信息，由网络侧CN根据该端到端时延信息估计空口延迟容限。具体的，对于Uu传输模式，网络侧需要估计网络侧延迟，并从总体的端到端时延中减去网络侧的延迟，该总体的端到端时延减去网络侧延迟的差值即可作为该Uu传输模式对应的空口延迟容限。对于PC5传输模式即D2D传输模式，不需要估计网络侧延迟，该端到端时延即为该D2D传输模式对应的空口延迟容限。若UE没有告知eNB端到端时延需求信息，则网络侧可将该端到端时延告知eNB。其中， 该网络侧CN中可包括各种协议功能实体和服务器簇。
303、根据空口延迟容限选择传输模式。
304、返回传输模式信息。
进一步的，eNB还可获取Uu剩余资源信息及PC5剩余资源信息，从而eNB可根据Uu方式和PC5方式的空口延迟容限信息和/或各传输模式的资源状况来确定选择该业务请求对应的目标传输模式。例如，将空口延迟容限较高的传输模式如Uu方式作为该目标传输模式；又比如，当Uu传输资源紧张，而PC5资源配置较充分时，可将PC5方式作为该目标传输模式。eNB在确定出用于进行业务传输的目标传输模式之后，即可根据选择的目标传输模式为该业务分配传输资源，并将目标传输模式的信息发送给UE1，以便UE1根据该目标传输模式及分配的资源完成与该UE2之间的短时延业务的业务传输。具体的，若该选择出的传输模式为PC5方式，则执行步骤305；否则，若该选择出的传输模式为Uu方式，则执行步骤306。
具体的，该目标传输模式的信息可以通过PC3接口通知UE1的，或者还可以通过Uu口使用RRC消息通知UE1的，本发明实施例不做限定。
305、PC5传输模式。
306、Uu传输模式。
具体的，对于Uu传输模式，eNB可以根据网络侧提供空口延迟容限，判断能否满足该需求，如果不能，则可以拒绝该业务；或者可以支持该业务，但是须向网络侧指示该业务的时延满足概率，从而网络运营者可用于优化网络资源的配置以及空口延迟容限的估计等等。对于D2D传输模式，eNB可以为不同的资源池配置不同的周期，如短的周期用于支持短时延业务；或者可以采用调度模式，实现短时延的传输。从而在进行短时延业务传输时，eNB能够根据网络侧估计的延迟容限，在选择采用D2D或Uu传输模式进行数据传输时更加精确地考虑时延要求，并支持根据延迟容限和资源状况选择D2D或者Uu传输模式来进行业务传输，从而能够满足业务的短时延需求。
请参阅图5，图5是本发明实施例提供的一种业务传输装置的结构示意图。具体的，如图5所示，本发明实施例的所述业务传输装置可以包括接收单元11、第一获取单元12、传输确定单元13以及资源分配单元14。其中，
所述接收单元11，用于接收用户设备发送的业务请求。
需要说明的是，本发明实施例的所述业务传输装置可以具体设置于基站如eNB或网络侧的网络设备中，该业务传输装置也可以独立设置，本发明实施例不做限定。
所述第一获取单元12，用于获取与所述业务请求对应的空口延迟容限。
具体实施例中，在接收单元11接收到用户设备的业务请求时，第一获取单元12即可获取得到该业务请求指示的业务的端到端时延需求，从而根据该端到端时延需求获取该业务对应的空口延迟容限，以基于该获取的空口延迟容限为该业务选取业务传输模式。
可选的，所述业务请求指示的业务的端到端时延是携带于所述业务请求中的，或者是由网络侧通知的，本发明实施例不做限定。
所述传输确定单元13，用于根据所述第一获取单元12获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式。
具体的，所述第一获取单元12可具体用于：
分别获取所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，其中，所述第一传输模式为基于长期演进LTE Uu接口的传输模式，所述第二传输模式为基于设备与设备D2D协议的传输模式；
所述传输确定单元13可具体用于：
根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
进一步可选的，所述第一获取单元12获取第一传输模式对应的空口延迟容限的具体方式为：
获取所述业务请求指示的业务的端到端时延，并通过网络侧估算所述业务对应的网络侧延迟；将所述端到端时延与所述网络侧延迟的差值作为与所述第一传输模式对应的空口延迟容限。
进一步可选的，所述第一获取单元12获取第二传输模式对应的空口延迟容限的具体方式为：
将所述业务请求指示的业务的端到端时延作为与所述第二传输模式对应的空口延迟容限。
可选的，该第一传输模式可以是单播或者广播的方式，本发明实施例不做 限定。
具体实施例中，在接收单元11接收到用户设备业务请求，并在第一获取单元12获取得到该业务请求指示业务对应的空口延迟容限之后，传输确定单元13即可根据该空口延迟容限信息来选择传输该业务的业务传输模式，即目标传输模式，比如将Uu传输模式及D2D传输模式对应的空口延迟容限中空口延迟容限较高的传输模式作为该目标传输模式。
所述资源分配单元14，用于根据所述传输确定单元13选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。
在传输确定单元13确定出用于进行业务传输的目标传输模式之后，资源分配单元14即可根据该目标传输模式为用户设备分配传输资源，从而用户设备能够根据该目标传输模式以及该分配的传输资源来进行业务传输，使得满足了业务时延需求。
在本发明实施例中，可在接收用户设备发送的业务请求时，通过获取与该业务请求对应的空口延迟容限，并根据该获取的空口延迟容限，为该业务请求指示的业务选择出用于传输该业务的目标传输模式，以在选择出的目标传输模式下为用户设备分配传输资源，并基于该目标传输模式及分配的传输资源进行业务传输，即本发明实施例能够根据空口延迟容限来选择业务传输模式，从而能够满足业务时延需求。
请参阅图6，图6是本发明实施例提供的另一种业务传输装置的结构示意图。具体的，如图6所示，本发明实施例的所述装置可包括上述图5对应实施例中的业务传输装置的接收单元11、第一获取单元12、传输确定单元13以及资源分配单元14，此处不再赘述。进一步的，在本发明实施例中，所述装置还可包括：
判断单元15，用于判断所述业务请求指示的业务是否为有预设时延需求的业务，并在判断结果为所述业务为有预设时延需求的业务，则通知所述第一获取单元12获取与所述业务请求对应的空口延迟容限。
具体的，该有预设时延需求的业务可以是指时延要求较高的短时延业务，如V2X防撞业务等等。可选的，该预设时延需求的业务可根据业务的类型信息或端到端时延需求信息预先配置得到，比如将某一类业务如V2X业务均作为该 预设时延需求的业务，或者将端到端时延需求低于某一预设阈值的业务作为该预设时延需求的业务，等等，本发明实施例不做限定。
可选的，在本发明实施例中，所述装置还可包括：
第二获取单元16，用于分别获取所述第一传输模式对应的剩余资源信息和所述第二传输模式对应的剩余资源信息；
所述传输确定单元13可具体用于：
根据所述第一传输模式对应的空口延迟容限及剩余资源信息、所述第二传输模式对应的空口延迟容限及剩余资源信息，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
具体的，还可通过第二获取单元16获取Uu资源状况、D2D资源状况信息，使得传输确定单元13在选择用于进行业务传输的业务传输模式及目标传输模式时，能够根据空口延迟容限信息和/或Uu资源状况、D2D资源状况来确定选择Uu传输模式还是PC5方式即D2D传输模式。比如，传输确定单元13可将空口延迟容限较高的传输模式作为该目标传输模式；又比如，若Uu传输资源紧张，而PC5资源配置较充分，则传输确定单元13可将PC5方式作为该目标传输模式；又比如，资源池资源数量能满足业务量要求且周期较短，如控制周期在10ms，则传输确定单元13可以选择PC5方式作为该目标传输模式。
在本发明实施例中，可在接收用户设备发送的业务请求时，通过判断该业务请求指示的业务是否为预设的短时延业务，并在为短时延业务时分别获取Uu传输模式和D2D传输模式对应的空口延迟容限，以根据该获取的空口延迟容限从该Uu传输模式和D2D传输模式中选择出用于传输该业务的目标传输模式，以在选择出的目标传输模式下为用户设备分配传输资源，并基于该目标传输模式及分配的传输资源进行业务传输。本发明实施例使得在短时延业务传输时，基站能够根据网络侧估计的延迟容限，在选择采用D2D或Uu传输模式进行数据传输时更加精确地考虑时延要求，并支持根据延迟容限和资源状况选择D2D或者Uu传输模式，从而能够满足业务的短时延需求。
进一步的，请参见图7，是本发明实施例提供的一种网络设备的结构示意图。具体的，本发明实施例的所述网络设备可以具体为上述的基站或者网络侧设备，该网络设备包括：通信接口300、存储器200和处理器100，所述处理器100分别与所述通信接口300及所述存储器200连接。所述存储器200可以是高速RAM 存储器，也可以是非不稳定的存储器(non-volatile memory)，例如至少一个磁盘存储器。所述通信接口300、存储器200以及处理器100之间可以通过总线进行数据连接，也可以通过其他方式数据连接。本实施例中以总线连接进行说明。其中，
所述存储器200用于存储驱动软件；
所述处理器100从所述存储器200读取所述驱动软件并在所述驱动软件的作用下执行：
通过所述通信接口300接收用户设备发送的业务请求；
获取与所述业务请求对应的空口延迟容限；
根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式，其中，所述目标传输模式包括基于长期演进LTE Uu接口的第一传输模式或基于设备与设备D2D协议的第二传输模式；
根据选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。
可选的，所述处理器100从所述存储器200读取所述驱动软件并在所述驱动软件的作用下执行所述获取与所述业务请求对应的空口延迟容限，具体执行以下步骤：
分别获取所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限；
所述根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式，包括：
根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
可选的，所述处理器100从所述存储器200读取所述驱动软件并在所述驱动软件的作用下，还用于执行以下步骤：
分别获取所述第一传输模式对应的剩余资源信息和所述第二传输模式对应的剩余资源信息；
所述根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出目标传 输模式，包括：
根据所述第一传输模式对应的空口延迟容限及剩余资源信息、所述第二传输模式对应的空口延迟容限及剩余资源信息，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
可选的，所述处理器100从所述存储器200读取所述驱动软件并在所述驱动软件的作用下执行所述获取所述第一传输模式对应的空口延迟容限，具体执行以下步骤：
获取所述业务请求指示的业务的端到端时延，并通过网络侧估算所述业务对应的网络侧延迟；
将所述端到端时延与所述网络侧延迟的差值作为与所述第一传输模式对应的空口延迟容限。
可选的，所述处理器100从所述存储器200读取所述驱动软件并在所述驱动软件的作用下执行所述获取所述第二传输模式对应的空口延迟容限，具体执行以下步骤：
将所述业务请求指示的业务的端到端时延作为与所述第二传输模式对应的空口延迟容限。
可选的，所述业务请求指示的业务的端到端时延是携带于所述业务请求中的，或者是由网络侧通知的。
可选的，所述处理器100从所述存储器200读取所述驱动软件并在所述驱动软件的作用下执行所述获取与所述业务请求对应的空口延迟容限之前，还用于执行以下步骤：
判断所述业务请求指示的业务是否为有预设时延需求的业务；
若为有预设时延需求的业务，则执行所述获取与所述业务请求对应的空口延迟容限的步骤。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本发明所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特 征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述该作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明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，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元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)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能单元的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元完成，即将装置的内部结构划分成不同的功能单元，以完成以上描述的全部或者部分功能。上述描述的装置的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (12)

  1. 一种业务传输方法，其特征在于，包括：
    接收用户设备发送的业务请求；
    获取与所述业务请求对应的空口延迟容限；
    根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式；
    根据选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。
  2. 根据权利要求要求1所述的方法，其特征在于，所述获取与所述业务请求对应的空口延迟容限，包括：
    分别获取第一传输模式对应的空口延迟容限以及第二传输模式对应的空口延迟容限，其中，所述第一传输模式为基于长期演进LTE Uu接口的传输模式，所述第二传输模式为基于设备与设备D2D协议的传输模式；
    所述根据获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式，包括：
    根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
  3. 根据权利要求要求2所述的方法，其特征在于，所述方法还包括：
    分别获取所述第一传输模式对应的剩余资源信息和所述第二传输模式对应的剩余资源信息；
    所述根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式，包括：
    根据所述第一传输模式对应的空口延迟容限及剩余资源信息、所述第二传输模式对应的空口延迟容限及剩余资源信息，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
  4. 根据权利要求要求2所述的方法，其特征在于，所述获取第一传输模式对应的空口延迟容限，包括：
    获取所述业务请求指示的业务的端到端时延，并通过网络侧估算所述业务对应的网络侧延迟；
    将所述端到端时延与所述网络侧延迟的差值作为与所述第一传输模式对应的空口延迟容限。
  5. 根据权利要求要求4所述的方法，其特征在于，所述业务请求指示的业务的端到端时延是携带于所述业务请求中的，或者是由网络侧通知的。
  6. 根据权利要求要求1-5任一项所述的方法，其特征在于，在所述获取与所述业务请求对应的空口延迟容限之前，所述方法还包括：
    判断所述业务请求指示的业务是否为有预设时延需求的业务；
    若为有预设时延需求的业务，则执行所述获取与所述业务请求对应的空口延迟容限的步骤。
  7. 一种业务传输装置，其特征在于，包括：
    接收单元，用于接收用户设备发送的业务请求；
    第一获取单元，用于获取与所述业务请求对应的空口延迟容限；
    传输确定单元，用于根据所述第一获取单元获取的所述空口延迟容限，为所述业务请求指示的业务选择用于传输所述业务的目标传输模式；
    资源分配单元，用于根据所述传输确定单元选择的所述目标传输模式为所述用户设备分配传输资源，以使所述用户设备根据所述目标传输模式和所述传输资源进行业务传输。
  8. 根据权利要求要求7所述的装置，其特征在于，所述第一获取单元具体用于：
    分别获取第一传输模式对应的空口延迟容限以及第二传输模式对应的空口延迟容限，其中，所述第一传输模式为基于长期演进LTE Uu接口的传输模式， 所述第二传输模式为基于设备与设备D2D协议的传输模式；
    所述传输确定单元具体用于：
    根据所述第一传输模式对应的空口延迟容限以及所述第二传输模式对应的空口延迟容限，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
  9. 根据权利要求要求8所述的装置，其特征在于，所述装置还包括：
    第二获取单元，用于分别获取所述第一传输模式对应的剩余资源信息和所述第二传输模式对应的剩余资源信息；
    所述传输确定单元具体用于：
    根据所述第一传输模式对应的空口延迟容限及剩余资源信息、所述第二传输模式对应的空口延迟容限及剩余资源信息，从所述第一传输模式和所述第二传输模式中确定出用于传输所述业务请求指示的业务的目标传输模式。
  10. 根据权利要求要求8所述的装置，其特征在于，所述第一获取单元获取第一传输模式对应的空口延迟容限的具体方式为：
    获取所述业务请求指示的业务的端到端时延，并通过网络侧估算所述业务对应的网络侧延迟；
    将所述端到端时延与所述网络侧延迟的差值作为与所述第一传输模式对应的空口延迟容限。
  11. 根据权利要求要求10所述的装置，其特征在于，所述业务请求指示的业务的端到端时延是携带于所述业务请求中的，或者是由网络侧通知的。
  12. 根据权利要求要求7-11任一项所述的装置，其特征在于，所述装置还包括：
    判断单元，用于判断所述业务请求指示的业务是否为有预设时延需求的业务，并在判断结果为所述业务为有预设时延需求的业务，则通知所述第一获取单元获取与所述业务请求对应的空口延迟容限。
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