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WO2017133644A1 - Procédé et appareil de sélection de chemin, dispositif, et support de stockage informatique - Google Patents

Procédé et appareil de sélection de chemin, dispositif, et support de stockage informatique Download PDF

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Publication number
WO2017133644A1
WO2017133644A1 PCT/CN2017/072765 CN2017072765W WO2017133644A1 WO 2017133644 A1 WO2017133644 A1 WO 2017133644A1 CN 2017072765 W CN2017072765 W CN 2017072765W WO 2017133644 A1 WO2017133644 A1 WO 2017133644A1
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WIPO (PCT)
Prior art keywords
path
transmission
sidelink
resource
information
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Ceased
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PCT/CN2017/072765
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English (en)
Chinese (zh)
Inventor
陈琳
陈玉芹
刘颖
马子江
罗薇
汪梦珍
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/12—Shortest path evaluation
    • H04L45/124—Shortest path evaluation using a combination of metrics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular to a path selection method and apparatus, device, and computer storage medium.
  • Vehicle Networking is more typical.
  • car networking in which vehicles can participate in wireless communications, through the use of advanced wireless cellular communication technology, real-time information interaction between the car and the car, the car and the roadside infrastructure, to inform each other's current state (including the location of the vehicle) , speed, acceleration, driving route) and learned road environment information, collaboratively aware of road hazard conditions, timely provide a variety of collision warning information to prevent road traffic safety accidents.
  • V2V Vehicle-to-Vehicle Communications
  • V2I Vehicle-to-Infrastructure Communications
  • Vehicle-to-Pedestrian Vehicle-to-Pedestrian
  • the base station can receive the vehicle networking information from the vehicle UE or the pedestrian UE, and transmit the user equipment (User Equipment, UE for short) or the pedestrian UE transmitted to the serving cell.
  • V2I generally refers to communication between a vehicle UE and a Road Side Unit (RSU), wherein the RSU is an entity supporting V2I service, and the vehicle networking information can be received from the vehicle UE and transmitted to the vehicle UE.
  • RSU can be considered to be implemented by a base station or a stationary UE or a separate network element.
  • the transmission of car network information is mostly based on broadcast and multicast.
  • the existing system base station supports a Multimedia Broadcast multicast serve single frequency network (MBSFN) and a Single Cell-Point to Multi-point (SC-PTM).
  • MBSFN Multimedia Broadcast multicast serve single frequency network
  • SC-PTM Single Cell-Point to Multi-point
  • the broadcast mechanism in addition to the UE-to-UE direct discovery/communication (D2D, sidelink, ProSe) mechanism, can also support broadcast transmission of messages over the PC5 interface. In this case, the UE chooses to use Uu or uses the PC5 interface to transmit vehicle network information, and the existing system has not yet provided a complete solution.
  • the present invention provides a path selection method and apparatus, device and computer storage medium to at least solve the problem of how a UE selects a transmission path to transmit a service in a car network system in the related art.
  • a path selection method including: receiving path indication information; selecting a transmission path according to path indication information; wherein the transmission path includes at least one of: Uu transmission path, and Sidelink transmission Path; transmits service data on the selected transmission path.
  • the service data includes at least one of the following: low-latency service data, vehicle networking service data, and proximity service data.
  • the Uu transmission path includes at least one of the following: an uplink evolved packet domain system (Evolved Packet System, EPS) path; wherein the uplink EPS path is a service data sent by the user equipment UE via the base station, the service a gateway and a path from the data network gateway to the application server; a local routing path; wherein the local routing path is a path of the service data sent by the UE to the application server via the base station and the base station built in the base station when the local gateway is built in the base station; a unicast EPS path; wherein the downlink unicast EPS path is a path of the service data sent by the application server via the packet data network gateway, the serving gateway, and the base station to the UE; the MBMS broadcast path of the multimedia broadcast multicast service; wherein the MBMS broadcast path
  • the service data sent by the application server is sent to the base station via the broadcast multicast service center, the MBMS gateway, and then the base station passes the multicast broadcast single frequency
  • the Sidelink transmission path is a direct communication path or a discovery path of the UE to the UE.
  • the path indication information includes at least one of the following: a transmission range of the service data transmission, available resource information for transmitting the service data, indication information indicating a load of the Uu uplink resource or the Sidelink resource, and service data. Transmission delay information; path configuration information.
  • the transmission range includes at least one of the following: a Uu downlink transmission area, a Multimedia Broadcast and Multicast Service (MBMS) broadcast area, a Sidelink transmission area, a UE authorized broadcast range, and a designated service.
  • MBMS Multimedia Broadcast and Multicast Service
  • the MBMS broadcast area is determined according to at least one of the following: geographic range information; wherein different geographic ranges correspond to different sizes of MBMS broadcast areas; broadcast range level information; wherein different levels of broadcast ranges correspond to different sizes MBMS broadcast area; cell level information; wherein different levels of cells correspond to MBMS broadcast areas of different sizes.
  • the Sidelink transmission area is determined by at least one of: a maximum transmission power of the Sidelink transmission service data; a transmission power level of the Sidelink transmission service data, where different transmission power levels correspond to different maximum transmission powers; Sidelink finds A collection of authorization ranges corresponding to the resource pool or the communication resource pool; wherein different Sidelink discovery resource pools or communication resource pools correspond to different sets of authorization ranges, and different Sidelink discovery resource pools or communication resource pools correspond to different maximum transmission powers and/or minimum transmissions. power.
  • selecting the transmission path according to the path indication information includes: determining whether at least one of the following transmission ranges is located in a broadcast range authorized by the UE or in a broadcast range of service data: a Uu downlink transmission area, an MBMS broadcast area, and a Sidelink transmission area.
  • the Sidelink transmission area is located within the UE authorized broadcast range or within the broadcast range of the service data
  • the Sidelink transmission path is selected; and/or, in the Uu downlink transmission area or the MBMS broadcast area is located within the UE authorized broadcast range or the service data
  • the Uu transmission path is selected.
  • the available resources include at least one of the following: a Sidelink discovery resource or a communication resource;
  • the Sidelink discovery resource or communication resource includes at least one of: information indicating that the Sidelink discovers the transmission resource or the communication transmission resource exists; Sidelink discovers the reception resource pool or the communication reception resource pool; and the Sidelink discovers the transmission resource pool or the communication transmission resource pool; Sidelink finds that an abnormal resource pool or communication is sent to send an abnormal resource pool; Sidelink finds a sending resource or a communication sending resource; Sidelink finds that a semi-static resource is sent or a semi-static resource is sent by communication; Uu communication resource; wherein the Uu communication resource includes at least one of the following : uplink cellular transmission resource; uplink semi-static cellular transmission resource; downlink cellular reception resource; downlink semi-static cellular reception resource; downlink MBMS or SC-PTM reception resource.
  • selecting the transmission path according to the path indication information includes: determining whether there is an available resource according to the available resource information; and determining, if the available resource is present, whether the serving base station is configured with a Sidelink resource; wherein the Sidelink The resource includes a Sidelink discovery resource or a communication resource; in the case where only the Sidelink resource exists, the Sidelink transmission path is selected; in the case where only Uu communication resources exist, the Uu transmission path is selected; and the Sidelink exists simultaneously In the case of resources and Uu communication resources, the Sidelink transmission path and/or the Uu transmission path are selected in accordance with a predetermined rule.
  • the indication information used to indicate the load of the Uu uplink resource or the Sidelink resource includes at least one of: information for indicating a prohibition request or using a Sidelink resource; and indicating a prohibition request or using a Sidelink resource timer Information; information indicating a priority or priority set for prohibiting requests or using Sidelink resources; information indicating a low-latency service type or type set for prohibiting requests or using Sidelink resources; indicating the load of the Sidelink resource Information; wherein the information includes at least one of: Sidelink resource usage level or congestion level; information indicating that the request is forbidden or used by the Uu uplink cellular resource; information indicating that the request is forbidden or the Uu uplink cellular resource timer is used; Information for indicating a priority or priority set for prohibiting the request or using the Uu uplink cellular resource; information for indicating a low-latency service type or type set for prohibiting the request or using the Uu uplink resource; for indicating the MBMS downlink broadcast resource Congested information; used
  • the priority includes at least one of the following: a priority of each service data packet, a QoS Class Identifier (QCI), a logical channel priority, and a logical channel group identifier.
  • QCI QoS Class Identifier
  • selecting the transmission path according to the path indication information includes at least one of: selecting Uu transmission if the path indication information is used to indicate a prohibition request or using a Sidelink resource or a Sidelink resource load is higher than a first predetermined threshold. a path; if the path indication information is used to indicate that the request is forbidden or the use of the Sidelink resource timer expires, the selection of the Sidelink transmission path is continued; if the path indication information is used to indicate that the request is forbidden or the Uu resource timer expires, the selection continues.
  • the path indication information is used to indicate a prohibition request or using the Uu uplink cellular resource or the Uu uplink cellular resource load is higher than a second predetermined threshold; the path indication information is used to indicate a prohibition request or In the case of using the Sidelink resource and the Uu uplink cellular resource, the low-latency service transmission is suspended; when the path indication information is used to indicate that the designated priority or the service data type is prohibited from using the Sidelink resource, the Uu transmission path is selected to transmit the specified priority.
  • the path indication information is used to indicate that the specified priority or the service data type is used to use the Uu uplink cellular resource, and the Sidelink transmission path is selected to transmit the specified priority or type of service data; the path indication information is used to indicate the MBMS downlink broadcast resource.
  • the path indication information is used to refer to In the case where the frequency of transmitting the low-latency service information is reduced or restored, the transmission frequency is reduced or the transmission frequency is restored by the upper layer of the UE.
  • the transmission delay information is used to indicate at least one of: whether to support a local route or a local gateway; whether to support a local MBMS gateway or a local broadcast multicast service center or a local car network server; whether to support RSU; Uu transmission a delay estimation value, wherein the Uu transmission delay estimation value includes at least one of: an uplink cellular transmission delay estimation value; a downlink cellular unicast transmission delay estimation value; a downlink cellular MBSFN transmission delay estimation value; a downlink cellular SC -PTM transmission delay estimate; Uu transmission delay quantization level.
  • selecting the transmission path according to the path indication information includes: when the base station does not support at least one of the following: a local gateway, a local route, a local MBMS gateway, a local BM-SC, a local car network server, and an RSU, Select the Sidelink transmission path; otherwise, select the Uu transmission path; or, determine whether the Uu transmission delay estimation value or the Uu transmission delay quantization level satisfies the delay requirement threshold of the low-latency service, and if not, select the Sidelink transmission path.
  • the path configuration information is used to indicate at least one of: sending only through the Sidelink transmission path; the service type or the service type set sent only through the Sidelink transmission path; transmitting only through the Uu transmission path; transmitting only through the Uu The service type or service type set sent by the path; the ratio of the data volume sent by the Sidelink transmission path and the Uu transmission path; the data volume threshold of the Uu transmission path; the data volume threshold of the Sidelink transmission path; and the reception power of the cell reference signal transmitted by the Uu transmission path (Reference Signal Receiving Power (RSRP) threshold; Sidelink transmission path transmission cell RSRP threshold; only received through the Sidelink transmission path; only the service type or service type set received through the Sidelink transmission path; only received through the Uu transmission path; only received through the Uu transmission path A collection of business types or business types.
  • RSRP Reference Signal Receiving Power
  • receiving only through Uu includes at least one of: receiving only through MBSFN; receiving only through Uu unicast; receiving only through SC-PTM.
  • selecting the transmission path according to the path indication information includes: using the Sidelink transmission path if the path indication information indicates that the transmission is only transmitted through the Sidelink transmission path or only through the Sidelink transmission path; the path indication information indicates that only the In the case of a service type or a service type set transmitted by the Sidelink transmission path or a service type or a service type set received only through the Sidelink transmission path, a Sidelink transmission path is used; the path indication information indicates a service type or service transmitted only through the Uu transmission path.
  • a Uu transmission path In the case of a type set or a service type or a service type set received only through the Uu transmission path, a Uu transmission path is used; in the case where the path indication information indicates transmission only through the Uu transmission path or only through the Uu transmission path, Uu transmission is used. a path; if the path indication information indicates a ratio of the amount of data transmitted by the Sidelink transmission path and the Uu transmission path, the path is selected according to the ratio; and when the path indication information indicates that the Sidelink transmits the RSRP threshold of the cell, the measured value of the cell RSRP is detected.
  • Foot Sidelink transfer cell RSRP threshold using Sidelink transmission path; in the case of transmission path Uu indication information cell RSRP threshold, the detected cell RSRP measurement value satisfies Uu transmission cell RSRP threshold, using the transmission path Uu.
  • the receiving path indication information includes: receiving the path indication information that is sent by at least one of the following devices by using a system broadcast message and/or dedicated signaling: a base station, a Mobility Management Entity (MME) ), Multi-VPN-Instance Customer Edge (MCE), car Networked server, adjacent to a business function entity.
  • MME Mobility Management Entity
  • MCE Multi-VPN-Instance Customer Edge
  • the path indication information is obtained by the base station from the mobility management entity MME or the multi-instance user network border device MCE or the vehicle networking server.
  • the method before receiving the path indication information, the method further includes: sending the path request information, where the path request information includes at least one of the following: service request information; service type information; priority information corresponding to the service;
  • the priority information includes at least one of the following: a neighboring area of each data packet, a PCI, a logical channel priority, a logical channel group identifier, a delay requirement information, and a periodic service transmission, the service sending period information. ; transmission rate of service data; reliability requirement information; Sidelink resource request information; Sidelink semi-static resource request information; uplink cellular resource request information; uplink cellular semi-static resource request information; Sidelink buffer status report information; Uu buffer status report information.
  • a path selection apparatus including: a receiving module configured to receive path indication information; and a selection module configured to select a transmission path according to the path indication information; wherein the transmission path includes at least one of the following: The Uu transmission path is connected to the Sidelink transmission path; the transmission module is configured to transmit the service data in the vehicle networking system on the selected transmission path.
  • the path indication information includes at least one of the following: a transmission range of the service data transmission, available resource information for transmitting the service data, indication information indicating a load of the Uu uplink resource or the Sidelink resource, and service data. Transmission delay information; path configuration information used to indicate the selected path.
  • an apparatus that includes the above apparatus.
  • a computer storage medium storing an execution instruction for executing the above method is provided.
  • the method for selecting a suitable transmission path according to the received path indication information and transmitting the service data on the selected transmission path solves the problem of how the UE selects the transmission path to transmit the service in the vehicle networking system in the related art.
  • the transmission of business data in the vehicle networking system is realized.
  • FIG. 1 is a schematic diagram of a car networking scenario in the related art
  • FIG. 2 is a flow chart of a path selection method according to an embodiment of the present invention.
  • 3a is a network architecture diagram of an RSU that is used by a base station or a base station to perform car network information transmission based on MBMS according to a preferred embodiment of the present invention
  • FIG. 3b is a diagram showing a car-based information transmission based on cellular communication by a base station or a base station acting as an RSU according to a preferred embodiment of the present invention.
  • 3c is a network architecture diagram of an RSU that is used by a base station or a base station to perform car network information transmission based on a local route according to a preferred embodiment of the present invention
  • 3d is a schematic diagram of vehicle networking information transmitted between vehicles via a PC5 interface in accordance with a preferred embodiment of the present invention
  • FIG. 4 is a schematic flow chart of a path selection method according to a preferred embodiment 1 of the present invention.
  • FIG. 5 is a schematic flow chart of a path selection method according to a preferred embodiment 2 of the present invention.
  • FIG. 6 is a schematic flow chart of a path selection method according to a preferred embodiment 3 of the present invention.
  • FIG. 7 is a schematic flow chart of a path selection method according to a preferred embodiment 4 of the present invention.
  • FIG. 8 is a flow chart showing a path selection method according to a preferred embodiment 5 of the present invention.
  • FIG. 9 is a block diagram showing the structure of a path selecting apparatus according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a path selection method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
  • Step S202 receiving path indication information
  • Step S204 Select a transmission path according to the path indication information, where the transmission path includes at least one of the following: a Uu transmission path, and a Sidelink transmission path;
  • Step S206 transmitting service data on the selected transmission path.
  • the foregoing service data may be service data in the Internet of Vehicles system, but is not limited thereto.
  • the foregoing service data includes at least one of the following: low-latency service data, vehicle networking service data, and proximity service data.
  • the Uu transmission path includes at least one of the following: an uplink evolved packet domain system EPS path; wherein the uplink EPS path is a path of the service data sent by the user equipment UE via the base station, the serving gateway, and the packet data network gateway to the application server; a routing path, where the local routing path is when the base station has a local gateway, the service data sent by the UE is sent to the base station, and a path of the local gateway to the application server built in the base station; a downlink unicast EPS path; wherein the downlink unicast EPS path is a path of the service data sent by the application server via the packet data network gateway, the serving gateway, and the base station to the UE; the multimedia broadcast group Broadcasting service MBMS broadcast path; wherein the
  • the foregoing service data may be transmitted in a data packet manner, and thus the uplink unicast EPS path may be a data packet sent by the UE to the base station, and then forwarded by the base station to the serving gateway, and the service gateway forwards the data packet to the packet data network gateway.
  • the packet data network gateway forwards the data packet to the application server;
  • the uplink local routing path may be a data packet sent by the UE to the base station when the base station has a built-in local gateway, and is processed by the local gateway built in the base station, and sent by the local gateway to the application.
  • the path of the server; the downlink unicast EPS path may receive the data packet sent by the application server for the packet data network gateway, and then forwarded by the packet data network gateway to the serving gateway, the service gateway forwards the data packet to the base station, and the base station sends the data unicast to the packet
  • the path of the UE; the downlink MBMS broadcast path may receive the data packet sent by the application server for the broadcast multicast service center, and then the broadcast multicast service center forwards the data packet to the MBMS gateway, and the MBMS gateway forwards the data packet to the base station, and the base station passes the data through the MBSFN or
  • the SC-PTM mechanism broadcasts a path sent to the UE;
  • the path indication information includes at least one of: a transmission range of service data transmission; available resource information for transmitting service data; indication information for indicating a load of the Uu uplink resource or the Sidelink resource; Data transmission delay information; path configuration information.
  • the path configuration information may be path orientation indication information for indicating a selection path, but is not limited thereto.
  • the foregoing transmission range may include at least one of the following: a Uu downlink transmission area; an MBMS broadcast area; a Sidelink transmission area; a UE authorized broadcast range; and a broadcast range of the specified service data.
  • the foregoing MBMS broadcast area may be determined according to at least one of the following: geographic range information; wherein different geographic ranges correspond to different sizes of MBMS broadcast areas; broadcast range level information; wherein different levels of broadcast ranges correspond to different size MBMS broadcast areas; Cell level information; wherein different levels of cells correspond to MBMS broadcast areas of different sizes.
  • the broadcast range level may be a large, medium, and small broadcast range, and the MBMS broadcast area corresponding to the large broadcast range is large, and the MBMS broadcast area corresponding to the small broadcast range is small.
  • the cell level may be a single cell, a multiple cell, a cell cluster, or a cell range of one hop, two hops, and three hops, but is not limited thereto.
  • the MBMS broadcast range corresponding to different cell levels is also different.
  • the above-mentioned Sidelink transmission area may be determined by at least one of the following: the maximum transmission power of the Sidelink transmission service data; the transmission power level of the Sidelink transmission service data, wherein different transmission power levels correspond to different maximum transmission powers; Sidelink discovers resource pools or communication resources.
  • the maximum transmit power of the traffic data can be used to indicate the above-mentioned Sidelink transmission area.
  • the transmission power level corresponds to different maximum transmission powers, and may naturally indicate different Sidelink transmission areas, and the foregoing transmission power levels may include high, medium, and low.
  • a range of transmit power may correspond to one transmit power level. Specifically, each transmit power level corresponds to a large range of transmit power, which may be set according to actual conditions. Since each authorization range can correspond to one Sidelink discovery resource pool or communication resource pool, the Sidelink discovery resource pool or communication resource pool can determine the transmission power of the service data, and thus can indicate the Sidelink transmission area.
  • the manner of determining the Sidelink transmission area may be selected according to specific conditions, and various ways of determining the Sidelink transmission area may also be used in combination, and are not limited thereto.
  • the foregoing step S204 may be performed as: determining whether at least one of the following transmission ranges is located in the UE authorized broadcast range or the broadcast range of the service data.
  • the foregoing step S204 may be performed as: determining whether at least one of the following transmission ranges is located in the UE authorized broadcast range or the broadcast range of the service data.
  • the Uu transmission path is selected if the MBMS broadcast area is within the UE authorized broadcast range or within the broadcast range of the service data.
  • the transmission range of the service data can determine whether the Sidelink transmission path or the Uu transmission path is selected to transmit the service data. It should be noted that the above determination manner is only a preferred embodiment of the present invention, and is not limited thereto.
  • the foregoing available resources may include at least one of the following: a Sidelink discovery resource or a communication resource; wherein the Sidelink discovery resource or communication resource may include at least one of the following: used to indicate that Sidelink discovers a transmission resource or The information of the communication transmission resource exists; Sidelink finds the receiving resource pool or the communication receiving resource pool; Sidelink finds the sending resource pool or the communication sending resource pool; Sidelink finds that the abnormal resource pool or the communication sends the abnormal resource pool; Sidelink finds the sending resource or the communication sending resource The Sidelink finds that the semi-static resource is sent or the semi-static resource is sent by communication; the Uu communication resource; wherein the Uu communication resource may include at least one of the following: an uplink cellular transmission resource; an uplink semi-static cellular transmission resource; a downlink cellular reception resource; Static cellular receive resources; downlink MBMS or SC-PTM receive resources.
  • the foregoing step S204 may be performed to: determine whether there is an available resource according to the available resource information; and if the available resource exists, determine the serving base station. Whether the Sidelink resource is configured; wherein the Sidelink resource includes a Sidelink discovery resource or a communication resource; if only the Sidelink resource exists, the Sidelink transmission path is selected; and in the case where only the Uu communication resource exists, the selected The Uu transmission path is described; in the case where the Sidelink resource and the Uu communication resource exist simultaneously, the Sidelink transmission path and/or the Uu transmission path are selected according to a predetermined rule.
  • the Sidelink transmission may be performed by the resources pre-configured by the terminal, but is not limited thereto.
  • the above Sidelink resource may include a Sidelink discovery resource or a communication resource
  • the foregoing cellular resource may include a Uu communication resource.
  • the predetermined rule may be determined according to an actual situation, or may be preset to transmit service data through a Sidelink transmission path in the presence of a Sidelink resource, or may be preset to be transmitted through a Uu transmission path in the presence of a Sidelink resource.
  • some judgment rules may be preset, and it may be determined whether Uu transmission path or Sidelink transmission is selected if some information such as access layer information satisfies certain conditions. Path, but not limited to this.
  • the foregoing indication information for indicating a load of the Uu uplink resource or the Sidelink resource may include at least one of: information for indicating a request for prohibition or use of a Sidelink resource; for indicating a request for prohibition or use Information of a Sidelink resource timer; information indicating a priority or priority set for prohibiting a request or using a Sidelink resource; information indicating a low-latency service type or type set for prohibiting a request or using a Sidelink resource; Information of the sidelink resource load; wherein the information may include at least one of: Sidelink resource usage level or congestion level; information for indicating prohibition of request or use of Uu uplink cellular resources; for indicating prohibition of request or use of Uu uplink cellular resources Information of a timer; information indicating a priority or priority set for prohibiting the request or using the Uu uplink cellular resource; information indicating a low-latency service type or type set for prohibiting the request or using the Uu uplink resource; Information indicating MB
  • Sidelink resource usage level or congestion level may be three levels or levels of high, medium, and low.
  • the high degree of use indicates that the load is heavy, and the use condition is low, the load is small, and the same congestion level is similar. Narration.
  • the priority may include at least one of the following: priority of each service data packet; quality classification indication QCI; logical channel priority; logical channel group identification.
  • QCI quality classification indication
  • logical channel priority logical channel group identification
  • the logical channel group identifier is used to identify the logical channel, and the different logical channels have different priorities, and thus the priority can also be indicated by the logical channel group identifier, and thus the above logical channel priority can be indicated by the logical channel group identifier.
  • the path indication information is the indication information for indicating the load of the Uu uplink resource or the Sidelink resource
  • the foregoing step S204 may be expressed as at least one of the following: the path indication information is used to indicate the prohibition.
  • the Uu transmission path is selected to transmit the service data of the specified priority or type; and when the path indication information is used to indicate that the designated priority or the service data type is prohibited from using the Uu uplink cellular resource, the Sidelink transmission path transmission is selected.
  • the path indication information is used to indicate the MBMS downlink broadcast resource congestion information, selecting to reduce the transmission frequency of the service data, or selecting to use the Sidelink transmission path; In the case of indicating to reduce or restore the frequency of transmission of the low-latency service information, the transmission frequency is reduced or the transmission frequency is restored by the upper layer of the UE.
  • the foregoing transmission delay information may be used to indicate at least one of: whether to support a local route or a local gateway; whether to support a local MBMS gateway or a Broadcast Multicast Service Center (BM) -SC) or local car networking server; whether RSU is supported; Uu transmission delay estimate;
  • the Uu transmission delay estimation value may include at least one of the following: an uplink cellular transmission delay estimation value; a downlink cellular unicast transmission delay estimation value; a downlink cellular MBSFN transmission delay estimation value; and a downlink cellular SC-PTM transmission delay. Estimated value; Uu transmission delay quantization level.
  • the foregoing step S204 may be performed as follows: the base station does not support at least one of the following: a local gateway, a local route, a local MBMS gateway, and a local BM- SC, local car networking server, in the case of RSU, select the Sidelink transmission path; otherwise, select the Uu transmission path; or, determine whether the Uu transmission delay estimation value or the Uu transmission delay quantization level satisfies the delay requirement threshold of the low delay service, if not Satisfied, select the Sidelink transmission path.
  • the path configuration information may be used to indicate at least one of: sending only through a Sidelink transmission path; a service type or a service type set sent only through a Sidelink transmission path; and transmitting only through the Uu transmission path; a service type or a service type set transmitted only through the Uu transmission path; a ratio of the data volume transmitted by the Sidelink transmission path and the Uu transmission path; a Uu transmission path transmission data amount threshold; a Sidelink transmission path transmission data amount threshold; and a Uu transmission path transmission cell reference signal reception Power RSRP threshold; Sidelink transmission path transmission cell RSRP threshold; only received through the Sidelink transmission path; only the service type or service type set received through the Sidelink transmission path; only received through the Uu transmission path; only the service type received through the Uu transmission path or Business type collection.
  • receiving only through Uu may include at least one of: receiving only through MBSFN; receiving only through Uu unicast; receiving only through SC-PTM.
  • the foregoing step S204 may be expressed as at least one of the following: the path indication information indicates that the transmission is only sent through the Sidelink transmission path or only through the Sidelink transmission path.
  • the Sidelink transmission path In the case of using a Sidelink transmission path; in the case where the path indication information indicates a service type or a service type set transmitted only through the Sidelink transmission path or a service type or a service type set received only through the Sidelink transmission path, the Sidelink transmission path is used; In the case where the path indication information indicates a service type or a service type set transmitted only through the Uu transmission path or a service type or a service type set received only through the Uu transmission path, the Uu transmission path is used; the path indication information indicates that only the Uu transmission is performed.
  • the Uu transmission path In the case where the path is transmitted or received only through the Uu transmission path, the Uu transmission path is used; in the case where the path indication information indicates the ratio of the amount of data transmitted by the Sidelink transmission path and the Uu transmission path, the path is selected according to the ratio; the path indication information indicates Sidelink When the cell RSRP threshold is transmitted, when the cell RSRP measurement value is found to satisfy the Sidelink transmission cell RSRP threshold, the Sidelink transmission path is used; when the path indication information indicates that the Uu transmits the cell RSRP threshold, the cell RSRP measurement value is detected to be satisfied. When the Uu transmits the cell RSRP threshold, the Uu transmission path is used.
  • the path indication information may be one or more of the foregoing transmission range, the available resource information, the indication information, the transmission delay information, and the path configuration information, where the path indication information includes multiple types.
  • the specific expression of the foregoing step S204 may be selected according to the priority of the information, for example, the priority of the available resource information is higher than the transmission range, and when the path indication information includes the foregoing available resource information and the foregoing transmission range, The transmission path may be preferentially selected according to the foregoing resource information. If the transmission path is not yet determinable, the transmission path is determined according to the transmission range, and is not limited thereto.
  • the foregoing step S202 may be implemented by: receiving the path indication information that is sent by at least one of the following devices by using a system broadcast message and/or dedicated signaling: a base station, a mobility management entity MME, Multi-instance user network border device MCE, vehicle networking server, adjacent business function entity. That is, the path indication information can be obtained through system broadcast messages and/or dedicated signaling.
  • the path indication information may also be obtained from a roadside unit or a car network server or a Prose functional entity or a car networking functional entity.
  • the method may further include: sending the path request information, where the path request information may include at least one of the following: service request information; service type information; priority information corresponding to the service; wherein the priority information Including at least one of: priority of each service data packet, QCI, logical channel priority, logical channel group identification; delay requirement information; transmission period information of the service for periodic service transmission; transmission of service data Rate; reliability requirement information; idelink resource request information; Sidelink semi-static resource request information; uplink cellular resource request information; uplink cellular semi-static resource request information; Sidelink buffer status report information; Uu buffer status report information.
  • the path request information may include at least one of the following: service request information; service type information; priority information corresponding to the service; wherein the priority information Including at least one of: priority of each service data packet, QCI, logical channel priority, logical channel group identification; delay requirement information; transmission period information of the service for periodic service transmission; transmission of service data Rate; reliability requirement information; idelink resource request information; Sidelink semi-static resource request information;
  • the foregoing service request information may include a sending request and/or receiving request information, where the delay requirement may be a quantized delay requirement, such as an end-to-end delay that cannot exceed a predetermined threshold (eg, 100 ms), but is not limited thereto.
  • the reliability requirement information may include a packet loss rate requirement, for example, the packet loss rate does not exceed a predetermined threshold (eg, 1%), but is not limited thereto.
  • the vehicle UE/Pedestrian UE/RSU selects to use according to the received path indication information by supporting the vehicle UE/Pedestrian UE/RSU receiving transmission range, the available resources of the vehicle network information transmission, the load condition, the transmission delay indication, the path inclination indication and the like.
  • the appropriate path transmits the information related to the vehicle network, comprehensively considers the resource load condition, ensures the demand for the diffusion area of the vehicle network information transmission, and realizes the low-latency and high-reliability vehicle network information transmission.
  • FIG. 3a is a network architecture diagram of an RSU that is used by a base station or a base station to perform car network information transmission based on MBMS according to a preferred embodiment of the present invention.
  • a car network or a pedestrian UE may send car network related information to a base station through a Uu interface.
  • the base station then forwards the information to the MBMS content provider/car network server through the core network, and then passes the information through the Broadcast Multicast Service Center (BMSC) and the multimedia broadcast multicast service (Multimedia Broadcast/ The Multicast Service (MBMS) gateway transmits the base station to the base station that needs to broadcast the car network information, and the base station transmits the car network information to the vehicle or pedestrian UE in the broadcast area including the own cell through the MBSFN/SC-PTM method.
  • BMSC Broadcast Multicast Service Center
  • MBMS multimedia broadcast multicast service
  • FIG. 3b is a network architecture diagram of an RSU that is used by a base station or a base station to perform car network information transmission based on cellular communication according to a preferred embodiment of the present invention.
  • a car network or a pedestrian UE or a UE type RSU may be provided through a Uu interface.
  • the base station sends the information related to the vehicle networking, and the base station forwards the information to the vehicle networking server through the core network, and the vehicle networking server passes the information through the Packet Data Network Gateway (PGW)/Service Gateway (SGW).
  • PGW Packet Data Network Gateway
  • SGW Service Gateway
  • FIG. 3c is a network architecture diagram of a car station or a base station acting as an RSU for performing car network information transmission based on a local route according to a preferred embodiment of the present invention.
  • a car network or a pedestrian UE may send a car network related to a base station through a Uu interface.
  • the base station sends the car network information broadcast/multicast/unicast mode to the vehicle or pedestrian UE of the local cell.
  • Figure 3d is a schematic illustration of vehicle networking information transmitted between vehicles via a PC5 interface in accordance with a preferred embodiment of the present invention.
  • FIG. 3a to FIG. 3d also show various transmission paths that the vehicle may appear, such as the Sidelink transmission path shown in FIG. 3d.
  • car network information transmission needs to consider delay requirements, broadcast transmission range, available resources and load conditions.
  • Vehicle network information transmission has higher delay requirements.
  • Uu-based cellular transmission needs to be forwarded by multiple network elements. The end-to-end delay is larger than that of PC5 interface. If the base station supports local gateway or local route, the delay can be appropriate. reduce.
  • different car networking services have different transmission range requirements.
  • Uu-based MBMS and SC-PTM can usually achieve a large broadcast range, while PC5-based sidelink transmission is limited by transmission power, and it is difficult to reach multiple cells. The area corresponding to the MBMS or SC-PTM broadcast.
  • the UE or UE type RSU can consider the available resources and load conditions of the Uu interface and the PC5 interface when selecting a path, and implement load balancing of the two interface resources as much as possible.
  • the transmission path of the car network information transmission the transmission path of the car network information reception also needs to be considered.
  • the UE can determine which network information to be transmitted on the interface to be received according to the type of service of interest. The path selection process is given below for the above several transmission paths and network architecture scenarios.
  • Vehicles A and B are equipped with UE1 and UE2 with car networking functions.
  • UE1 and UE2 are in an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) network coverage state, and the E-UTRAN network supports the car networking function.
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • FIG. 4 is a schematic flowchart of a path selection method according to a preferred embodiment 1 of the present invention. As shown in FIG. 4, the process includes:
  • Step S402 the UE1 obtains the broadcast range corresponding to the runaway alarm service, the vehicle network transmission range authorized by the UE, and the delay requirement information from the V2X function entity.
  • Step S404 the UE1 detects system information broadcasted by the base station, and includes available resource information, a transmission delay indication (corresponding to the above transmission delay information), and transmission range information, which are usable for the car network transmission.
  • Available resources refer to resources used for low latency services/car networking services, including Sidelink discovery resources or communication resources, and/or Uu communication resources.
  • the Sidelink discovery resource or communication resource includes information indicating that the Sidelink discovers the transmission resource or the communication transmission resource exists; Sidelink discovers the reception resource pool or the communication reception resource pool; Sidelink discovers the transmission resource pool or the communication transmission resource pool; and Sidelink finds that the abnormal resource is sent.
  • the pool or communication sends an abnormal resource pool; Sidelink finds that the resource or communication sends the resource; Sidelink finds that the semi-static resource is sent or the semi-static resource is sent by communication.
  • Uu communication resources include uplink cellular transmission resources; uplink semi-static cellular transmission resources; downlink cellular reception resources; downlink semi-static cellular reception resources; downlink MBMS or SC-PTM reception resources, and the like.
  • the transmission delay indication includes whether to support local routing/local gateway, whether to support local MBMS gateway/local BM-SC/local car network server, whether to support RSU, Uu transmission delay estimation value, Uu transmission delay level Don't wait.
  • the transmission range includes a Uu downlink transmission area, an MBMS broadcast area, and a Sidelink transmission area.
  • the MBMS broadcast area refers to an MBMS information broadcast area that the network or the base station can support.
  • the Sidelink transmission area can be indicated by the transmission of the maximum transmission power by the Sidelink, or by the different Sidelink transmission power level and the corresponding maximum transmission power.
  • the UE can calculate the transmission power corresponding to the sidelink transmission by using the above information, thereby obtaining the size of the sidelink transmission area.
  • the Sidelink transmission area can also be indicated by a set of authorization ranges corresponding to different Sidelink discovery/communication resource pools.
  • the UE reports the above information to the upper layer, and the upper layer determines whether the service information is transmitted through the Sidelink transmission path or the Uu transmission path.
  • the UE may also report the high-level transmission range and the transmission delay indication, and the upper layer may determine the delay of the information transmission according to the transmission delay information, if the base station does not support the local gateway/local routing/local MBMS gateway/local BM-SC/local car network server/RSU , the packet transmission delay is long, the UE may prefer the Sidelink transmission path, otherwise the UE selects the Uu transmission path; the UE may also determine whether the delay requirement of the low-latency service is satisfied according to the Uu transmission delay estimation value or the delay level, if not satisfied , select the Sidelink transmission path. Assuming that the upper layer of UE1 finds Uu transmission resources, and the Uu transmission path can meet the delay requirement and the broadcast area requirement, the Uu transmission path is selected.
  • Step S408 the upper layer instructs the AS layer to transmit the car network data packet through the Uu transmission path.
  • the serving base station After the data packet is sent to the serving base station, the serving base station forwards the information to the content provider/vehicle network server of the MBMS through the SGW/PGW, and then transmits the information to the base station that needs to broadcast the car network information through the BMSC and the MBMS gateway. For example, the base station 2 transmits the car networking information to the vehicle or pedestrian UE in the cell through the SC-PTM mode.
  • the vehicle UE2 in the coverage area of the base station 2 is interested in receiving the car network information, and the UE2 detects the Group Radio Network Temporary Identifier (G-RNTI) corresponding to the car network service of interest, and correspondingly The vehicle downlink message is received on the Physical Downlink Shared Channel (PDSCH).
  • G-RNTI Group Radio Network Temporary Identifier
  • PDSCH Physical Downlink Shared Channel
  • the UE2 parses the data packet including the car network information, and delivers the data packet including the car network information to the logical channel/RLC receiving entity/PDCP receiving entity, and finally delivers the parsed car network message to the upper layer.
  • UE2 After receiving the Internet of Vehicles message from the car networking protocol layer of UE2, UE2 further determines whether the information is related to the vehicle in which UE2 is installed, and issues a prompt or warning to the driver.
  • the AS layer can report the Sidelink abnormal resource pool and the Sidelink sending resource pool information to the upper layer. Select to switch to the Sidelink exception resource pool or the Sidelink send resource pool for information transmission via the Sidelink resource.
  • Vehicles A and B are equipped with UE1 and UE2 with car networking functions.
  • UE1 and UE2 are in an E-UTRAN network coverage state, and the E-UTRAN network supports the car networking function.
  • the vehicle networking application layer of the UE 1 When the vehicle A in which the UE 1 is installed suddenly stops in the middle of the road, the vehicle networking application layer of the UE 1 generates a warning vehicle warning DEMN message, which is desired to be transmitted to the surrounding vehicles.
  • FIG. 5 is a schematic flowchart of a path selection method according to a preferred embodiment 2 of the present invention. As shown in FIG. 5, the process includes:
  • the UE1 detects system information broadcasted by the base station, and includes a load that can be used for the network transmission resource.
  • the load case may include information for indicating a request for prohibition or use of a Sidelink resource; information for indicating a request for prohibition or use of a Sidelink resource timer; information for indicating a request for prohibition or use of a priority or priority set of Sidelink resources; Information indicating a low-latency service type or type set for prohibiting the request or using the Sidelink resource; information indicating the load of the Sidelink resource; wherein the information includes at least one of: Sidelink resource usage level or congestion level; Information for requesting or using Uu uplink cellular resources; information for indicating prohibition of request or use of Uu uplink cellular resource timer; information for indicating prohibition of request or use of priority or priority set of Uu uplink cellular resources; Information indicating a low-latency service type or type set for prohibiting the request or using the Uu uplink resource; information for indicating MBMS
  • the transmission range includes a Uu downlink transmission area, an MBMS broadcast area, and a Sidelink transmission area.
  • the MBMS broadcast area refers to an MBMS information broadcast area that the network or the base station can support.
  • the Sidelink transmission area can be indicated by the transmission of the maximum transmission power by the Sidelink, or by the different Sidelink transmission power level and the corresponding maximum transmission power.
  • the UE can calculate the transmission power corresponding to the sidelink transmission by using the above information, thereby obtaining the size of the sidelink transmission area.
  • the Sidelink transmission area can also be indicated by a set of authorization ranges corresponding to different Sidelink discovery/communication resource pools.
  • Step S504 the UE detects the Uu uplink resource according to the load situation information, and the Sidelink resource load situation, if the request/use of the Sidelink resource or the Sidelink resource load is high, the Uu transmission path is selected; if the prohibition request is indicated or the Sidelink resource timer is used, the UE The prohibition request/use of the Sidelink resource timer may be enabled. When the timer expires, the UE may continue to consider using the Sidelink resource; if the request/use of the Uu uplink cellular resource or the Uu uplink cellular resource load is prohibited, the Sidelink transmission path is selected; If the request or the Uu resource timer is forbidden, the UE may enable the prohibition request/UU resource timer.
  • the UE may continue to consider using the Uu resource; if the request/use of the Sidelink resource and the Uu uplink cellular resource are simultaneously prohibited, Then, the UE suspends the low-latency service transmission; if the load condition indicates that a certain priority or a certain service type is used to use the Sidelink or Uu uplink cellular resources, the UE uses the Uu transmission path or the Sidelink transmission path to transmit the vehicle network information of the corresponding service type. ; if the load condition indicates a decrease or restore a low delay If the service information transmission frequency indication is sent to the upper layer, the UE reduces the transmission frequency or restores the transmission frequency.
  • the UE may choose to reduce the transmission frequency of the car network information, or select to use Sidelink.
  • the transmission path is transmitted.
  • the congestion information can also be set to different congestion levels. When the congestion level is high, the UE selects to use the Sidelink transmission path for transmission. Assuming that the UE1 detects the MBMS downlink broadcast resource congestion indication, and the transmission area of the Sidelink communication can meet the broadcast range requirement of the emergency parking service, the Sidelink transmission path is selected.
  • step S506 the upper layer instructs the AS layer to transmit the car network data packet through the Sidelink.
  • the vehicle UE2 near the UE1 is interested in receiving the car network information, and the UE2 acquires the Sidelink communication receiving resource pool information of the system information broadcast, and listens to the car network information transmitted through the PC5 interface.
  • the UE2 parses the data packet including the car network information, and delivers the data packet including the car network information to the logical channel/RLC receiving entity/packet data convergence protocol (Packet) corresponding to the car network bearer.
  • the Data Convergence Protocol (PDCP) receiving entity finally delivers the parsed alert vehicle warning DENM message to the upper layer or the car networking protocol layer.
  • the UE2's car networking protocol layer further determines whether the event is related to the vehicle in which the UE2 is installed, and issues a warning to the driver.
  • FIG. 6 is a schematic flowchart of a path selection method according to a preferred embodiment 3 of the present invention. As shown in FIG. 6, the process includes:
  • Step S602 if the UE1 is interested in transmitting the car network information, the UE1 sends the car network information transmission request information to the base station, and requests the base station to send the car network information path configuration information, where the request information may include a low delay service transmission request, and the low delay Service class, low-latency service priority, low-latency service delay requirement, low-latency service cycle, low-latency service data rate, and low-latency service reliability requirements.
  • the UE may directly carry a Sidelink resource configuration request, a Sidelink semi-static resource configuration request, an uplink cellular semi-static resource configuration request, and the like in the request.
  • the base station may configure a path orientation indication (corresponding to the path configuration information) according to the information of the Sidelink resource and the congestion of the cellular resource, which may include at least one of the following: : Send only through the Sendlink transmission path; only the service type or service type set sent through the Sidelink transmission path; only through the Uu transmission path; only the service type or service type set sent through the Uu transmission path; Sidelink transmission path and Uu transmission path
  • the receiving by Uu includes at least one of the following: receiving only through MBSFN, receiving only through Uu unicast, and receiving only through SC-P
  • Step S606 the UE determines the transmission path according to the path tendency indication information (corresponding to the path configuration information). If the service type or the service type set transmitted only through the Sidelink transmission path is indicated, the UE only transmits the indicated only through the Sidelink transmission path. The service information corresponding to the service type is sent through the Sidelink transmission path.
  • the UE selects the Uu transmission path to send; if the indication is only through the Uu transmission path If the service type or the service type set is sent, the UE only sends the service information corresponding to the service type that is sent only through the Uu transmission path through the Uu transmission path, for example, only the DENEM message or the event triggers the car network information to pass through the Uu transmission path.
  • the UE sends; if only received through the Sidelink transmission path, the UE selects the Sidelink transmission path to receive; if it indicates that the service type or the service type set received only through the Sidelink transmission path, the UE transmits through Sidelink when it is interested in receiving the indicated type of service.
  • Path reception Vehicle networking information if only received through the Uu transmission path, the UE selects the Uu transmission path to receive; if it indicates that the service type or the service type set received only through the Uu transmission path, the UE passes the interest of receiving the indicated type of service,
  • the Uu transmission path receives the corresponding car network information; if the ratio of the data volume sent by the Sidelink and the Uu is indicated, the higher layer controls the data packet transmitted through the Sidelink and the Uu transmission path according to the ratio; if the Sidelink transmission cell RSRP threshold is instructed, the UE detects the cell.
  • the Sendlink transmission path is used for transmission and reception; if the Uu is transmitted to the cell RSRP threshold, the UE detects that the cell RSRP measurement value meets the threshold requirement.
  • the Uu transmission path is used for transmission and reception; if UE1 receives the service type or service type set received only through Sidelink, and the service type or service type set received only through Uu, UE1 informs the upper layer of the above information.
  • the higher layer decides which car network data packets are transmitted through Uu, which data packets are transmitted through Sidelink, and instructs the access AS layer to transmit through the corresponding interface.
  • FIG. 7 is a schematic flowchart of a path selection method according to a preferred embodiment 4 of the present invention. As shown in FIG. 7, the process includes:
  • Step S702 assuming that the UE1 is interested in receiving the car network information, the UE1 sends the car network information receiving request information to the base station, and requests the base station to send the car network information path configuration information, where the request information may include a low delay service sending request, and the low delay Service class, low-latency service priority, low-latency service delay requirement, low-latency service cycle, low-latency service data rate, and low-latency service reliability requirements.
  • the UE may directly carry a Sidelink resource configuration request, a Sidelink semi-static resource configuration request, an uplink cellular semi-static resource configuration request, and the like in the request.
  • Step S704 After receiving the information, the base station may configure a path preference indication (corresponding to the path configuration information) for the UE by using the dedicated signaling according to the congestion of the Sidelink resource and the cellular resource, and specifically includes at least one of the following: Sended by the Sidelink transmission path; only the service type or service type set sent by the Sidelink transmission path; only transmitted through the Uu transmission path; only the service type or service type set transmitted through the Uu transmission path; the Sidelink transmission path and the Uu transmission path transmit data Quantity ratio; Uu transmission path transmission data threshold; Sidelink transmission path transmission data threshold; Uu transmission path transmission cell reference signal reception power RSRP threshold; Sidelink transmission path transmission cell RSRP threshold; only through Sidelink transmission path reception; only through Sidelink transmission
  • the receiving by Uu includes at least one of the following: receiving only through MBSFN, receiving only through Uu unicast, and
  • step S706 if the service type or the service type set sent by the Sidelink transmission path is instructed, the UE only sends the indicated service information corresponding to the service type sent only through the Sidelink transmission path through the Sidelink transmission path, such as only the CAM message. Or the periodic car network information is sent through the Sidelink; if only transmitted through the Uu transmission path, the UE selects the Uu transmission path to transmit; if the service type or the service type set transmitted only through the Uu transmission path is indicated, the UE only indicates only the indicated The service information corresponding to the service type sent through the Uu transmission path is sent through the Uu transmission path.
  • the UE selects the Sidelink transmission path to receive. If the service type or the service type set received by the Sidelink transmission path is instructed, the UE receives the corresponding car network information through the Sidelink transmission path when receiving the service of the indicated type; if only the Uu transmission path is received, UE selects Uu transmission path Receiving; if set indicating the type or types of traffic received over the Uu only the transmission path, the UE receiver within the meaning of When the type of service is interested, the corresponding vehicle network information is received through the Uu transmission path; if the ratio of the data volume sent by the Sidelink and the Uu is indicated, the upper layer controls the data packet transmitted through the Sidelink and the Uu transmission path according to the ratio; if the Sidelink transmission cell is indicated
  • the RSRP threshold is used when the UE detects that the cell RSRP measurement value meets the threshold requirement, and uses the Sidelink transmission path to
  • the UE uses the Uu transmission when detecting that the cell RSRP measurement value meets the threshold requirement.
  • the path is transmitted and/or received; if UE1 receives a service type or a service type set received only through Sidelink, and a service type or a service type set received only through Uu, UE1 informs the upper layer of the above information. Which interfaces need to be received by high-level decisions. Assuming that the upper layer instructs the AS layer to receive the Uu and the PC5 interface networking packet to transmit through Uu, UE1 simultaneously receives the MBSFN or SC-PTM broadcast of Uu and the Sidelink communication.
  • Preferred embodiments 1 to 4 describe that a base station sends path indication configuration information to a UE by using system broadcast or proprietary signaling. As shown in FIG.
  • the method may further include: the base station may receive the following information from the MME/MCE/car network server: UE low-latency service/vehicle network service authorization range information, MBMS broadcast area, Sidelink broadcast area, MBMS Broadcast congestion indication, low/reduced low-latency service information transmission frequency indication, recovery of low-latency service information transmission frequency indication, prohibition of uplink cellular transmission data/service/bearer priority or priority set, prohibition of uplink cellular transmission delay When the business type or type collection, etc. This information can be transmitted through the S1 port or the M1/M3 interface for the base station to perform reasonable transmission path indication.
  • This information can be transmitted through the S1 port or the M1/M3 interface for the base station to perform reasonable transmission path indication.
  • the upper layer in the above preferred embodiment 1-5 may refer to a non-access NAS layer or an application layer, and is not limited thereto.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • a path selection device is further provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 9 is a structural block diagram of a path selection apparatus according to an embodiment of the present invention. As shown in FIG. 9, the apparatus includes:
  • the receiving module 92 is configured to receive path indication information.
  • the selection module 94 is connected to the receiving module 92, and is configured to select a transmission path according to the path indication information; wherein the transmission path includes at least one of the following: a Uu transmission path, and a Sidelink transmission path;
  • the transmission module 96 is connected to the selection module 94 for transmitting the industry in the vehicle networking system on the selected transmission path. Data.
  • the selection module 94 selects an appropriate transmission path according to the received path indication information, and the transmission module 96 transmits the service data on the selected transmission path, which solves the related art how the UE selects the transmission path to transmit the service in the vehicle networking system.
  • the problem is to realize the transmission of business data in the vehicle networking system.
  • the path indication information may include at least one of: a transmission range of service data transmission; available resource information for transmitting service data; indication information for indicating a load of the Uu uplink resource or the Sidelink resource; and service data. Transmission delay information; path configuration information.
  • the explanation of the information and the method of selecting the transmission path in the case where the path indication information is the path configuration information are the same as those in the foregoing method embodiment, and are not described here again. It should be noted that the path indication information is which of the above information.
  • the process of selecting a transmission path is performed by the selection module 94.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are respectively located. Among multiple processors.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the transmission path includes at least one of the following: a Uu transmission path, and a Sidelink transmission path;
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • selecting a suitable transmission path according to the received path indication information, and transmitting service data on the selected transmission path solving how the UE selects a transmission path in the vehicle networking system in the related art.
  • the problem of transmission service realizes the transmission of service data in the vehicle networking system.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte à un procédé et un appareil de sélection de chemin, un dispositif, et un support de stockage informatique. Le procédé consiste : à recevoir des informations d'indication de chemin ; à sélectionner un chemin de transmission en fonction des informations d'indication de chemin, le chemin de transmission comprenant au moins un chemin de transmission Uu ou un chemin de transmission de liaison latérale ; et à émettre des données de service dans un système de réseautage de véhicule sur les chemins de transmission sélectionnés. La présente invention résout le problème de l'art antérieur sur la manière dont un UE sélectionne un chemin de transmission en vue d'une transmission de service dans un système de réseautage de véhicule.
PCT/CN2017/072765 2016-02-04 2017-01-26 Procédé et appareil de sélection de chemin, dispositif, et support de stockage informatique Ceased WO2017133644A1 (fr)

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