WO2016045090A1 - Procédé d'attribution de ressource d2d, et équipement utilisateur - Google Patents

Procédé d'attribution de ressource d2d, et équipement utilisateur Download PDF

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Publication number
WO2016045090A1
WO2016045090A1 PCT/CN2014/087560 CN2014087560W WO2016045090A1 WO 2016045090 A1 WO2016045090 A1 WO 2016045090A1 CN 2014087560 W CN2014087560 W CN 2014087560W WO 2016045090 A1 WO2016045090 A1 WO 2016045090A1
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WO
WIPO (PCT)
Prior art keywords
data
user equipment
resource allocation
resource
base station
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PCT/CN2014/087560
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English (en)
Chinese (zh)
Inventor
曹振臻
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/087560 priority Critical patent/WO2016045090A1/fr
Priority to CN201480035438.1A priority patent/CN105684471B/zh
Publication of WO2016045090A1 publication Critical patent/WO2016045090A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present invention relates to the field of communications, and in particular, to a device-to-device (D2D) resource allocation method and user equipment.
  • D2D device-to-device
  • D2D communication technology is currently a communication technology. This technology is different from the existing cellular communication technology.
  • the data of the user equipment needs to be transmitted through the base station, and the D2D communication technology is the user equipment. Data transmission is directly performed between them to reduce transmission delay.
  • D2D communication technology can reduce transmission delay
  • the allocation of D2D resources for D2D communication has always been problematic.
  • the invention provides a D2D resource allocation method and user equipment, which can solve the problem of D2D resource allocation of D2D communication.
  • the present invention provides a D2D resource allocation method, including:
  • the user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station, where the target resource allocation mode is The preset rule selects a resource allocation mode of the D2D resource from the D2D resource pool acquired by the user equipment in advance;
  • the user equipment When the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, the user equipment is targeted to The resource allocation request performs a resource processing operation for avoiding waste of D2D resources, where the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request;
  • the user equipment selects a first D2D resource from a D2D resource pool that is acquired in advance by the user equipment.
  • the user equipment performs resource processing operations for avoiding waste of D2D resources for the resource allocation request, including:
  • the user equipment monitors, by the base station, a downlink channel that sends the target D2D resource allocation information
  • the user equipment uses the second D2D resource allocated by the target D2D resource allocation information.
  • the method further includes:
  • the user equipment After the user equipment uses the second D2D resource allocated by the target D2D resource allocation information, the user equipment terminates sending a resource allocation request for requesting allocation of D2D resources to the base station.
  • the user equipment performs resource processing operations for avoiding waste of D2D resources for the resource allocation request, including:
  • the user equipment sends a D2D resource allocation stop indication to the base station, where the resource allocation stop indication is used to indicate that the base station stops responding to the D2D resource allocation request.
  • the method further includes:
  • the user equipment When the user equipment switches to the target resource allocation mode, the user equipment terminates sending a resource allocation request for requesting allocation of D2D resources to the base station.
  • the user equipment terminates sending to the base station for A resource allocation request requesting allocation of D2D resources, including:
  • the user equipment terminates retransmitting the D2D resource allocation request timer
  • the user equipment terminates a periodic D2D resource allocation request timer.
  • the method further includes:
  • the user equipment selects a preset radio bearer for carrying the address resolution protocol ARP data to carry ARP data in the D2D data, and uses the first D2D resource to transmit the ARP data in the D2D data carried by the radio bearer.
  • the method further includes:
  • the user equipment selects a preset radio bearer carrying ARP data to carry ARP data in the D2D data, and uses the first D2D resource to transmit the first ARP data in the D2D data carried by the radio bearer;
  • the user equipment selects a preset radio bearer for carrying ARP data to carry ARP data in the D2D data, and uses the second D2D resource to transmit the second ARP data in the D2D data carried by the radio bearer.
  • the radio bearer carries ARP in the D2D data.
  • Data including:
  • the radio bearer carries a packet data convergence protocol (PDCP) packet containing ARP data in the D2D data, where the header of the PDCP packet includes identification information indicating that the data contained in the PDCP packet is ARP data.
  • PDCP packet data convergence protocol
  • the method further includes:
  • the user equipment selects a preset radio bearer for carrying ARP data to carry IP data in the D2D data, and uses the first D2D resource to transmit the first IP data in the D2D data carried by the radio bearer;
  • the user equipment selects a preset radio bearer carrying ARP data to carry IP data in the D2D data, and uses the second D2D resource to transmit the second IP data in the D2D data carried by the radio bearer.
  • the radio bearer carries the IP data in the D2D data, including:
  • the radio bearer carries a PDCP packet containing IP data in the D2D data, where the header of the PDCP packet includes identification information for processing IP data contained in the PDCP packet.
  • the present invention provides a user equipment, including: a sending unit and a processing unit, where:
  • the sending unit is configured to send, to the base station, a resource allocation request for requesting allocation of D2D resources;
  • the processing unit is configured to determine, when the user equipment switches to a target resource allocation mode, Whether the user equipment has sent a resource allocation request for requesting allocation of a D2D resource to the base station, where the target resource allocation mode is that the user equipment selects D2D from the D2D resource pool pre-acquired by the user equipment according to a preset rule.
  • Resource allocation pattern of resources is that the user equipment selects D2D from the D2D resource pool pre-acquired by the user equipment according to a preset rule.
  • the processing unit is further configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station And performing resource processing operations for avoiding waste of D2D resources for the resource allocation request, where the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request;
  • the processing unit is further configured to select a first D2D resource from a D2D resource pool that is pre-acquired by the user equipment.
  • the user equipment further includes:
  • a receiving unit configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, Monitoring, by the base station, a downlink channel that sends the target D2D resource allocation information;
  • the processing unit is further configured to: when the receiving unit acquires the target D2D resource allocation information in the downlink channel, use the second D2D resource allocated by the target D2D resource allocation information.
  • the processing unit is further configured to: when the user equipment uses the second allocation of the D2D resource allocation information After the D2D resource, the resource allocation request for requesting allocation of the D2D resource is terminated to be sent to the base station.
  • the sending unit is further configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive And sending, to the base station, a D2D resource allocation stop indication, where the resource allocation stop indication is used to indicate that the base station stops responding to the D2D resource, when the target D2D resource allocation information requested by the resource allocation request sent by the base station is sent Assign a request.
  • the processing unit is further configured to: When the user equipment switches to the target resource allocation mode, the resource allocation request for requesting allocation of the D2D resource is terminated to be sent to the base station.
  • the processing unit is further configured to terminate the retransmission when the user equipment switches to the target resource allocation mode D2D resource allocation request timer;
  • the processing unit is further configured to terminate the periodic D2D resource allocation request timer when the user equipment switches to the target resource allocation mode.
  • the sending unit is further configured to select a preset radio bearer bearer for carrying address resolution protocol ARP data.
  • ARP data in the D2D data and using the first D2D resource to transmit ARP data in the D2D data carried by the radio bearer.
  • the sending unit is further configured to select a preset radio bearer bearer for carrying address resolution protocol ARP data.
  • ARP data in the D2D data and using the first D2D resource to transmit the first ARP data in the D2D data carried by the radio bearer;
  • the sending unit is further configured to: select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit, by using the second D2D resource, the second ARP in the D2D data carried by the radio bearer. data.
  • the radio bearer carries the ARP data in the D2D data, including:
  • the radio bearer carries a packet data convergence protocol (PDCP) packet containing ARP data in the D2D data, where the header of the PDCP packet includes identification information indicating that the data contained in the PDCP packet is ARP data.
  • PDCP packet data convergence protocol
  • the sending unit is further configured to select a preset
  • the radio bearer for carrying the address resolution protocol ARP data carries the first IP data in the D2D data, and uses the first D2D resource to transmit the IP data in the D2D data carried by the radio bearer;
  • the sending unit is further configured to select the IP data in the radio bearer carrying the D2D data for carrying the address resolution protocol ARP data, and transmit the second IP in the D2D data carried by the radio bearer by using the second D2D resource. data.
  • the radio bearer carries the IP data in the D2D data, including:
  • the radio bearer carries a PDCP packet containing IP data in the D2D data, where the header of the PDCP packet includes identification information for processing IP data contained in the PDCP packet.
  • the present invention provides a user equipment, including: a transmitter and a processor; wherein:
  • the transmitter is configured to send, to the base station, a resource allocation request for requesting allocation of D2D resources;
  • the processor is used to:
  • the user equipment When the user equipment is switched to the target resource allocation mode, it is determined whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station, where the target resource allocation mode is preset by the user equipment.
  • the rule selects a resource allocation mode of the D2D resource from a D2D resource pool that is pre-acquired by the user equipment;
  • the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, Requesting to perform resource processing operations for avoiding waste of D2D resources, wherein the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request;
  • the user equipment further includes:
  • a receiver configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, Monitoring, by the base station, a downlink channel that sends the target D2D resource allocation information;
  • the processor is further configured to: when the receiving unit acquires the target D2D resource allocation information in the downlink channel, use the second D2D resource allocated by the target D2D resource allocation information.
  • the processor is further configured to: when the user equipment uses the second D2D allocated by the D2D resource allocation information After the resource is terminated, the resource allocation request for requesting allocation of the D2D resource is terminated to the base station.
  • the transmitter is further configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the When the target D2D resource allocation information requested by the resource allocation request sent by the base station is The base station sends a D2D resource allocation stop indication, where the D2D resource allocation stop indication is used to instruct the base station to stop responding to the resource allocation request.
  • the processor is further configured to be used when When the user equipment switches to the target resource allocation mode, the resource allocation request for requesting allocation of the D2D resource is terminated to be sent to the base station.
  • the processor is further configured to be used by the user equipment Terminate the retransmission D2D resource allocation request timer when switching to the target resource allocation mode; or
  • the processor is further configured to terminate the periodic D2D resource allocation request timer when the user equipment switches to the target resource allocation mode.
  • the transmitter is further configured to select a preset radio bearer D2D for carrying address resolution protocol ARP data.
  • the ARP data in the data, and the first D2D resource is used to transmit the address resolution protocol ARP data in the D2D data carried by the radio bearer.
  • the transmitter is further configured to select a preset
  • the radio bearer carrying the address resolution protocol ARP data carries the ARP data in the D2D data, and uses the first D2D resource to transmit the first ARP data in the D2D data carried by the radio bearer;
  • the transmitter is further configured to select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the second ARP in the D2D data carried by the radio bearer by using the second D2D resource. data.
  • the radio bearer carries ARP data in the D2D data include:
  • the radio bearer carries a packet data convergence protocol (PDCP) packet containing ARP data in the D2D data, where the header of the PDCP packet includes identification information indicating that the data contained in the PDCP packet is ARP data.
  • PDCP packet data convergence protocol
  • the transmitter is further configured to select a preset
  • the radio bearer carrying the address resolution protocol ARP data carries the first IP data in the D2D data, and uses the first D2D resource to transmit the IP data in the D2D data carried by the radio bearer;
  • the transmitter is further configured to select a preset radio bearer for carrying the address resolution protocol ARP data to carry IP data in the D2D data, and use the second D2D resource to transmit the second IP in the D2D data carried by the radio bearer. data.
  • the radio bearer carries the IP data in the D2D data, including:
  • the radio bearer carries a PDCP packet containing IP data in the D2D data, where the header of the PDCP packet includes identification information for processing IP data contained in the PDCP packet.
  • the user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station; when the user equipment has been When the base station sends the resource allocation request, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, the user equipment performs the resource allocation request for avoiding The D2D resource is wasted resource processing operation; the user equipment selects the first D2D resource from the D2D resource pool that is pre-acquired by the user equipment.
  • FIG. 1 is a schematic flowchart of a D2D resource allocation method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another D2D resource allocation method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a D2D resource allocation method according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:
  • the user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of a D2D resource to the base station, where the target resource allocation mode is the user.
  • the device selects a resource allocation mode of the D2D resource from the D2D resource pool pre-acquired by the user equipment according to a preset rule.
  • the foregoing D2D resource pool may be a D2D resource pool used by the user equipment to be configured by the user equipment in advance through the base station configuration signaling, and the D2D resource pool may be pre-passed by the user equipment.
  • the D2D resource pool used for the normal connection between the user equipment and the base station is configured by the base station configuration signaling, or the D2D resource pool may be configured in advance by the user equipment for the abnormal connection between the user equipment and the base station.
  • the above D2D resource can be understood as a resource for performing D2D communication, for example, a channel resource.
  • the abnormal situation of the communication link between the user equipment and the base station includes: one of the T310 timer, the T311 timer, and the T301 timer of the user equipment is in an operating state;
  • the normal situation of the communication link between the user equipment and the base station includes: the user equipment and The base station communication link is not in an abnormal situation.
  • the determining, by the user equipment, that the user equipment has sent a resource allocation request for requesting allocation of the D2D resource to the base station may be, determining whether the retransmission D2D resource allocation request timer of the user equipment is in an operating state, for example, retransmitting the ProSe Whether the Buffer Status Report (BSR) timer is in the running state, if yes, determining that the user equipment has sent a resource allocation request to the base station; or the user equipment determines whether the user equipment has sent the request to the base station for request
  • the resource allocation request for allocating the D2D resource may be: determining whether the periodic D2D resource allocation request timer of the user equipment is in the running state, for example, whether the periodic ProSe BSR timer is in the running state, and if yes, determining that the user equipment has sent the resource allocation to the base station.
  • Resource allocation request determining, by the user equipment, that the user equipment has sent a resource allocation request for requesting allocation of the D2D resource to the base station, and determining whether the user equipment has sent the base station to request the allocation of the D2D resource in the preset time.
  • Resource allocation request determining, by the user equipment, that the user equipment has sent a resource allocation request for requesting allocation of the D2D resource to the base station, whether the user equipment has sent the base station to request the allocation of the D2D resource in the previous resource allocation mode period.
  • the user equipment uses the first resource allocation mode, that is, determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station in the first resource allocation mode.
  • the first resource allocation mode is that the user equipment sends a resource allocation request to the base station, and the base station allocates a D2D resource allocation mode to the user equipment in response to the resource allocation request.
  • the user The device performs a resource processing operation for avoiding waste of D2D resources for the resource allocation request, wherein the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request.
  • the foregoing user equipment does not receive the base station, where the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request, which may be understood as:
  • the D2D resource allocation information requested by the above resource allocation request is not all received by the user equipment.
  • the resource allocation request sent by the user equipment to the base station is requested to be a 100-byte D2D resource, but when the user equipment switches to the target resource allocation mode, only the D2D resource allocation information of the 50-byte D2D resource is received.
  • the target D2D resource allocation information requested by the user equipment that is not received by the user equipment may also be expressed as a retransmission D2D resource allocation request timer of the user equipment, for example, retransmission.
  • the D2D Buffer Status Report (BSR) timer is still in the running state, and/or the period D2D resource allocation request timer of the user equipment is still running, for example, the period D2D BSR timer is still in the running state.
  • step 102 since the user equipment has sent a resource allocation request to the base station, and the user equipment has switched to the target resource allocation mode, the user equipment has not received the D2D resource allocated by the base station, and if not, the foregoing is used to avoid The D2D resource wastes resource processing operations, then the base station continues to allocate D2D resources to the user equipment.
  • the resource allocation mode of the D2D resource is selected from the D2D resource pool pre-acquired by the user equipment according to a preset rule by the user equipment according to a target resource allocation mode. Thus, the D2D resources allocated by the base station to the user equipment may be wasted.
  • the step 102 needs to perform the foregoing resource processing operation for avoiding waste of D2D resources, for example, notifying the base station to stop allocating D2D resources, or listening to the D2D resources allocated by the base station, and when listening to the D2D resources allocated by the base station, using the D2D resources for D2D Communication.
  • the user equipment selects a first D2D resource from a D2D resource pool that is acquired in advance by the user equipment.
  • the user equipment may randomly select the first D2D resource from the pre-acquired D2D resource pool, or select the first D2D resource from the pre-acquired D2D resource pool according to a preset selection rule.
  • step 101 when step 101 is performed, since the user equipment has switched to the target resource allocation mode, the user equipment performs step 103, that is, step 103 may be performed simultaneously with step 101.
  • step 103 When the first D2D resource is selected, the first D2D resource can be used for D2D communication.
  • the user equipment when the user equipment has sent the resource allocation request to the base station, and the user equipment receives the target D2D resource allocation information requested by the resource allocation request sent by the base station, the user equipment stops listening to the downlink channel that the base station sends the D2D resource allocation information.
  • the above D2D communication may be that the user equipment sends D2D data to another one or more user equipments.
  • the user equipment may be any device with D2D communication function, such as: tablet, mobile phone, e-reader, remote controller, personal computer (PC), notebook computer, car device, network television, A smart device having a D2D communication function such as a wearable device.
  • D2D communication function such as: tablet, mobile phone, e-reader, remote controller, personal computer (PC), notebook computer, car device, network television, A smart device having a D2D communication function such as a wearable device.
  • the user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station; When the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, the user equipment is targeted to The resource allocation request performs a resource processing operation for avoiding waste of D2D resources; the user equipment selects a first D2D resource from a D2D resource pool that is acquired in advance by the user equipment. Thereby, the problem of allocation of D2D resources for D2D communication can be solved.
  • FIG. 2 is a schematic flowchart of another D2D resource allocation method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • the user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station.
  • the target resource allocation mode is a resource allocation mode in which the user equipment selects a D2D resource from a D2D resource pool that is pre-acquired by the user equipment according to a preset rule.
  • the first resource allocation mode is that the user equipment sends a resource to the base station.
  • the allocation request the base station allocates a distribution mode of the D2D resource to the user equipment in response to the resource allocation request.
  • the user equipment may perform the D2D resource configuration by using the foregoing first resource allocation mode.
  • the base station configures the user equipment to use the first resource allocation mode by using configuration signaling, where the user equipment uses the first resource.
  • the process of assigning patterns can be as follows:
  • the user equipment sends a resource allocation request for requesting allocation of the D2D resource to the base station before sending the D2D data, for example, sending a Proximity Service (ProSe), a Buffer Status Report (BSR), where the ProSe BSR can Including D2D BSR;
  • ProSe Proximity Service
  • BSR Buffer Status Report
  • the base station After receiving the resource allocation request, the base station schedules D2D resources for the user equipment, and sends scheduling signaling of the scheduled D2D resources in the downlink channel, for example, a Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the user equipment monitors the downlink channel, and when the scheduling signaling is obtained, the D2D resource that is identified by the scheduling signaling is used to send the D2D data.
  • the foregoing user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station, and may determine whether the user equipment sends a request for allocating D2D resources to the base station in the first resource allocation mode. Resource allocation request.
  • the user equipment is switched from the first resource allocation mode to the target resource allocation mode, where the user equipment detects that there is a problem in the communication link between the user equipment and the base station, and starts to be used for switching by using the first resource allocation mode.
  • the timer to the target resource allocation for example, the T310 timer is started, or the T311 timer is started, or the T301 timer is started
  • the user equipment is switched from the first resource allocation mode to the target resource allocation mode.
  • the timer T310 is started, the user equipment is switched from the first resource allocation mode to the target resource allocation mode.
  • the user equipment when the user equipment is switched from the first resource allocation mode to the target resource allocation mode, the user equipment terminates sending a resource allocation request for requesting allocation of D2D resources to the base station.
  • the user equipment terminates sending a resource allocation request for requesting allocation of D2D resources to the base station, including:
  • the user equipment terminates the retransmission D2D resource allocation request timer, for example, terminating the retransmission ProSe BSR timer;
  • the user equipment terminates a periodic D2D resource allocation request timer, for example, a terminating period ProSe BSR timer.
  • the user The device performs a resource processing operation for avoiding waste of D2D resources for the resource allocation request, wherein the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request.
  • the foregoing user equipment performs resource processing operations for avoiding waste of D2D resources for the resource allocation request, and may include:
  • the user equipment listens to the downlink channel that the base station sends the target D2D resource allocation information
  • the user equipment uses the second D2D resource allocated by the target D2D resource allocation information.
  • the downlink channel may be a PDCCH
  • the target D2D resource allocation information may be identifier information including a D2D resource, for example, information including a Radio Network Tempory Identity (RNTI) of the D2D resource.
  • the second D2D resource allocated by the user equipment using the target D2D resource allocation information may be the second D2D resource transmission D2D data allocated by using the target D2D resource allocation information.
  • the target D2D resource allocation information is obtained, where the acquisition requires a time.
  • step 203 selects the first D2D resource.
  • step 203 first selects the first D2D resource, and step 202 acquires the target D2D resource allocation information.
  • the embodiment may be configured to send the D2D data by using the second D2D resource when acquiring the target D2D resource allocation information.
  • the D2D data when the D2D data is relatively large, when the D2D data is transmitted by using the second D2D resource, when the first D2D resource is selected, the D2D data may also be sent by using the first D2D resource.
  • the step 203 selects the first D2D resource, and the D2D data that the user equipment needs to send has not been sent yet, so that the first D2D resource and the second D2D resource can be used.
  • the D2D data can be sent first by using the first D2D resource. That is, the above method may further include the following steps:
  • the user equipment performs D2D communication using the first D2D resource; and/or
  • the user equipment performs D2D communication using the second D2D resource.
  • the D2D communication using the first D2D resource may be to transmit the first D2D data
  • the D2D communication using the second D2D resource may be the transmission of the second D2D data. That is, it is possible to simultaneously transmit D2D data through two D2D resources.
  • the D2D data that the user equipment needs to transmit may be the first D2D data and/or the second D2D data.
  • the user equipment after the user equipment uses the second D2D resource allocated by the target D2D resource allocation information, that is, after the user equipment sends the D2D data by using the second D2D resource, the user equipment terminates sending to the base station for sending Request a resource allocation request to allocate a D2D resource.
  • the user equipment terminates sending a resource allocation request for requesting allocation of D2D resources to the base station; or when the user equipment sends the D2D data by using the second D2D resource, the user equipment The device terminates sending a resource allocation request for requesting allocation of D2D resources to the base station.
  • the sending of the resource allocation request for requesting the allocation of the D2D resource to the base station may include:
  • the user equipment terminates the retransmission D2D resource allocation request timer, for example, terminating retransmission ProSe BSR timer;
  • the user equipment terminates a periodic D2D resource allocation request timer, for example, a terminating period ProSe BSR timer.
  • the D2D data transmitted by the D2D communication may be an address resolution protocol (ARP) data and an IP data, so that the step of the user equipment to perform D2D communication by using the first D2D resource may include:
  • ARP address resolution protocol
  • IP data IP data
  • the user equipment selects a preset radio bearer for carrying the ARP data to carry the ARP data in the D2D data, and uses the first D2D resource to transmit the first ARP data in the D2D data carried by the radio bearer.
  • the user equipment may also select the IP data in the D2D data carried by the radio bearer carrying the address resolution protocol ARP data, and transmit the first IP address in the D2D data carried by the radio bearer by using the first D2D resource. data.
  • the IP data and the ARP data in the D2D data carried by the radio bearer carrying the address resolution protocol ARP data may be differentiated by the identifier of the data packet of each data, so that the receiving device receives the radio bearer. After the data, the identification of the data packet can be used to distinguish which data is ARP data and which data is IP data. This enables ARP data and IP data to be carried on the same radio bearer.
  • the step of the user equipment performing D2D communication by using the second D2D resource may include:
  • the user equipment selects a preset radio bearer for carrying the ARP data to carry the ARP data in the D2D data, and uses the second D2D resource to transmit the second ARP data in the D2D data carried by the radio bearer.
  • the user equipment may also select a preset radio bearer for carrying the address resolution protocol ARP data to carry IP data in the D2D data, and use the second D2D resource to transmit the second IP data in the D2D data carried by the radio bearer.
  • the IP data in the D2D data that the user equipment needs to transmit may include the foregoing first IP data and/or the second IP data
  • the ARP data in the D2D data that the user equipment needs to transmit may include the foregoing first ARP data and/or the first Two ARP data.
  • the radio bearer for carrying the ARP data preset may be a radio bearer with a preset specific identifier, for example, a radio bearer with a specific radio bearer sequence number, or A radio bearer of a specific logical channel sequence number, or a bearer dedicated to transmitting ARP data; or a bearer dedicated to transmission control signaling different from a user plane data bearer.
  • the priority of the ARP data in the IP data and the ARP data of the D2D data is relatively high, so that the ARP data can be transmitted through the specific radio bearer, and the user who receives the ARP data can be prioritized.
  • the device can recognize the received data as ARP data through the radio bearer, so that the data received in the radio bearer can be directly transmitted to the ARP layer without discriminating.
  • the foregoing preset radio bearer for carrying ARP data may be that the user equipment pre-negotiates with the user equipment that receives the D2D data, or the user equipment notifies the user equipment that receives the D2D data.
  • the transmission of the IP data in the D2D data is not limited in this embodiment.
  • the foregoing user equipment performs resource processing operations for avoiding waste of D2D resources for the resource allocation request, and may include:
  • the user equipment sends a D2D resource allocation stop indication to the base station, where the resource allocation stop indication is used to instruct the base station to stop responding to the D2D resource allocation request.
  • the base station When the base station receives the D2D resource allocation stop indication, the base station stops responding to the resource allocation request, so as to avoid waste of D2D resources allocated by the base station for the user equipment.
  • the user equipment when the user equipment sends the resource allocation stop indication, the user equipment has switched to the target resource allocation mode, that is, the user equipment has stopped listening to the downlink channel, and if the base station further allocates D2D resources, the user equipment cannot Get the D2D resource.
  • the foregoing radio bearer carries ARP data in the D2D data, including:
  • the radio bearer carries a Packet Data Convergence Protocol (PDCP) packet that includes ARP data in the D2D data, where the header of the PDCP packet includes data for indicating that the data contained in the PDCP packet is ARP data. Identification information.
  • PDCP Packet Data Convergence Protocol
  • the PD2 packet carried by the radio bearer may be transmitted by using the first D2D resource and/or the second D2D resource.
  • the data included in the PDCP packet is identified by the identifier information in the header of the PDCP packet as the ARP data, that is, the user equipment receiving the D2D data can identify the ARP data by using the identifier information in the header of the PDCP packet.
  • the wireless The data packet may also transmit other data.
  • the packet header of some of the foregoing radio bearers may further include identifier information indicating that the data included in the PDCP packet is RRC data, that is, the radio bearer may also transmit RRC data. Therefore, the utilization of providing wireless bearer resources can be improved.
  • the foregoing radio bearer carrying the IP data in the D2D data may include:
  • the radio bearer carries a PDCP packet containing IP data in the D2D data, where the header of the PDCP packet includes identification information for processing IP data contained in the PDCP packet.
  • the identification information used to process the IP data contained in the PDCP packet may be an identifier of an IP data packet header compression and decompression algorithm used by the radio bearer.
  • the IP data packet header compression and decompression algorithm includes User Datagram Protocol (UDP)/IP header compression and decompression algorithm, Transmission Control Protocol (TCP)/IP header compression and decompression. Algorithms, etc.
  • the PD2 packet carried by the radio bearer may be transmitted by using the first D2D resource and/or the second D2D resource.
  • the IP data packet header compression and decompression algorithm used by the radio bearer carrying the PDCP packet may be identified by the identifier information of the IP data packet header compression and decompression algorithm in the packet header of the PDCP packet. Therefore, the target receiving user equipment of the PDCP packet can perform IP header decompression on the IP data in the PDCP packet according to the IP packet header compression algorithm.
  • the user equipment selects a first D2D resource from a D2D resource pool that is acquired in advance by the user equipment.
  • the user equipment may perform D2D communication by using the first D2D resource.
  • the user equipment in step 201 when the user equipment in step 201 is switched from the first resource allocation mode to the target resource allocation mode, the user equipment determines that the user equipment does not send a resource allocation request for requesting allocation of D2D resources to the base station.
  • the user equipment stops listening to the uplink channel, for example, stops listening to the PDCCH channel.
  • the device embodiment of the present invention is used to perform the method for implementing the first to second embodiments of the present invention.
  • the device embodiment of the present invention is used to perform the method for implementing the first to second embodiments of the present invention.
  • Only parts related to the embodiment of the present invention are shown, and the specific technical details are not disclosed. Please refer to Embodiment 1 and Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 3, the method includes: a sending unit 31 and a processing unit 32, where:
  • the sending unit 31 is configured to send, to the base station, a resource allocation request for requesting allocation of the D2D resource.
  • the processing unit 32 is configured to determine, when the user equipment is switched to the target resource allocation mode, whether the user equipment has sent a resource allocation request for requesting allocation of a D2D resource to the base station, where the target resource allocation mode is The user equipment selects a resource allocation mode of the D2D resource from the D2D resource pool pre-acquired by the user equipment according to a preset rule;
  • the processing unit 32 is further configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation requested by the resource allocation request sent by the base station At the time of information, a resource processing operation for avoiding waste of D2D resources is performed for the resource allocation request, wherein the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request;
  • the processing unit 32 is further configured to select a first D2D resource from a D2D resource pool that is acquired by the user equipment in advance.
  • the sending unit 31 may be a transmitter, and the processor 32 may be a processor.
  • the user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station; when the user equipment has been When the base station sends the resource allocation request, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, the user equipment performs the D2D for the resource allocation request.
  • the resource processing operation is a waste of resources; the user equipment selects the first D2D resource from the D2D resource pool acquired in advance by the user equipment. Thereby, the problem of allocation of D2D resources for D2D communication can be solved.
  • FIG. 4 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure. As shown in FIG. 4, it includes: a transmitting unit 41 and a processor 42, wherein:
  • the sending unit 41 is configured to send, to the base station, a resource allocation request for requesting allocation of the D2D resource.
  • the processing unit 42 is configured to: when the user equipment is switched from the first resource allocation mode to the target resource allocation mode, determine whether the user equipment has sent a resource allocation request for requesting allocation of a D2D resource to the base station, where the target resource
  • the allocation mode is a resource allocation mode in which the user equipment selects a D2D resource from a D2D resource pool that is pre-acquired by the user equipment according to a preset rule;
  • the target resource allocation mode is a resource allocation mode in which the user equipment selects a D2D resource from a D2D resource pool that is pre-acquired by the user equipment according to a preset rule.
  • the first resource allocation mode is that the user equipment sends a resource to the base station.
  • the allocation request the base station allocates a distribution mode of the D2D resource to the user equipment in response to the resource allocation request.
  • processing unit 42 may be configured to determine whether the user equipment sends a resource allocation request for requesting allocation of D2D resources to the base station in the foregoing first resource allocation mode.
  • the processing unit 42 is further configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, And performing resource processing operations for avoiding waste of D2D resources for the resource allocation request, where the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request;
  • the processing unit 42 is further configured to select the first D2D resource from the D2D resource pool that is acquired by the user equipment in advance.
  • the user equipment may further include:
  • the receiving unit 43 is configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, And monitoring, by the base station, a downlink channel that sends the target D2D resource allocation information;
  • the processing unit 42 is further configured to use the second D2D resource allocated by the target D2D resource allocation information when the receiving unit acquires the target D2D resource allocation information in the downlink channel.
  • the receiving unit 43 is specifically a receiver.
  • the processing unit 42 is further configured to: when the user equipment uses the D2D resource allocation After the second D2D resource allocated by the information, the resource allocation request for requesting allocation of the D2D resource is terminated to be sent to the base station.
  • the sending unit 41 is further configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target that is requested by the resource allocation request sent by the base station And transmitting, by the D2D resource allocation information, a D2D resource allocation stop indication to the base station, where the resource allocation stop indication is used to indicate that the base station stops responding to the D2D resource allocation request.
  • the processing unit 42 is further configured to, when the user equipment switches to the target resource allocation mode, terminate sending, to the base station, a resource allocation request for requesting allocation of the D2D resource.
  • the processing unit 42 is further configured to terminate the retransmission D2D resource allocation request timer when the user equipment switches to the target resource allocation mode;
  • processing unit 42 is further configured to terminate the period D2D resource allocation request timer when the user equipment switches to the target resource allocation mode.
  • the sending unit 41 is further configured to select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the D2D data carried by the radio bearer by using the first D2D resource.
  • ARP data is further configured to select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the D2D data carried by the radio bearer by using the first D2D resource.
  • the sending unit 41 is further configured to select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the D2D data carried by the radio bearer by using the first D2D resource.
  • the sending unit 41 is further configured to: select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the D2D data carried by the radio bearer by using the second D2D resource.
  • the second ARP data is further configured to: select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the D2D data carried by the radio bearer by using the second D2D resource.
  • the second ARP data is further configured to: select a preset ARP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the D2D data carried by the radio bearer by using the second D2D resource.
  • the radio bearer carries the ARP data in the D2D data, and may include:
  • the radio bearer carries a packet data convergence protocol (PDCP) packet containing ARP data in the D2D data, where the header of the PDCP packet includes identification information indicating that the data contained in the PDCP packet is ARP data.
  • PDCP packet data convergence protocol
  • the sending unit 41 is further configured to select a first IP data in the radio bearer carrying D2D data that is used to carry the address resolution protocol ARP data, and transmit the D2D carried by the radio bearer by using the first D2D resource.
  • IP data in the data and/or
  • the sending unit is further configured to select a preset ARP data for carrying address resolution protocol.
  • the radio bearer carries the IP data in the D2D data, and uses the second D2D resource to transmit the second IP data in the D2D data carried by the radio bearer.
  • the foregoing radio bearer carries the IP data in the D2D data, and may include:
  • the radio bearer carries a PDCP packet containing IP data in the D2D data, where the header of the PDCP packet includes identification information for processing IP data contained in the PDCP packet.
  • FIG. 6 is a schematic structural diagram of another apparatus according to an embodiment of the present invention. As shown in FIG. 6, the method includes: a transmitter 61 and a processor 62, where:
  • a transmitter 61 configured to send, to the base station, a resource allocation request for requesting allocation of D2D resources
  • the processor 62 is configured to:
  • the user equipment When the user equipment is switched to the target resource allocation mode, it is determined whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station, where the target resource allocation mode is preset by the user equipment.
  • the rule selects a resource allocation mode of the D2D resource from a D2D resource pool that is pre-acquired by the user equipment;
  • the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, Requesting to perform resource processing operations for avoiding waste of D2D resources, wherein the target D2D resource allocation is all D2D resource allocation information or partial D2D resource allocation information requested by the resource allocation request;
  • the user equipment may further include:
  • the receiver 63 is configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, And monitoring, by the base station, a downlink channel that sends the target D2D resource allocation information;
  • the processor 62 is further configured to use the second D2D resource allocated by the target D2D resource allocation information when the receiving unit acquires the target D2D resource allocation information in the downlink channel.
  • the processor 62 is further configured to, after the user equipment uses the second D2D resource allocated by the D2D resource allocation information, terminate sending a resource allocation request for requesting allocation of the D2D resource to the base station.
  • the transmitter 61 is further configured to: when the user equipment has sent the resource allocation request to the base station, and the user equipment does not receive the target that is requested by the resource allocation request sent by the base station And transmitting, by the D2D resource allocation information, a D2D resource allocation stop indication to the base station, where the D2D resource allocation stop indication is used to indicate that the base station stops responding to the resource allocation request.
  • the processor 62 is further configured to, when the user equipment switches to the target resource allocation mode, terminate sending a resource allocation request for requesting allocation of the D2D resource to the base station.
  • the processor 62 is further configured to terminate the retransmission D2D resource allocation request timer when the user equipment switches to the target resource allocation mode;
  • the processor 62 is further configured to terminate the periodic D2D resource allocation request timer when the user equipment switches to the target resource allocation mode.
  • the transmitter 61 is further configured to select a preset radio bearer for carrying the address resolution protocol ARP data to carry the ARP data in the D2D data, and use the first D2D resource to transmit the D2D data carried by the radio bearer. Address Resolution Protocol ARP Data.
  • the transmitter 61 is further configured to: use the first D2D resource to transmit the ARP data in the D2D data that is used to carry the address resolution protocol ARP data.
  • the transmitter 61 is further configured to select a preset radio bearer for carrying address resolution protocol ARP data to carry ARP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second ARP data is further configured to select a preset radio bearer for carrying address resolution protocol ARP data to carry ARP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second ARP data is further configured to select a preset radio bearer for carrying address resolution protocol ARP data to carry ARP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second ARP data is further configured to select a preset radio bearer for carrying address resolution protocol ARP data to carry ARP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second ARP data is further configured to select
  • the radio bearer carries the ARP data in the D2D data, and may include:
  • the radio bearer carries a packet data convergence protocol (PDCP) packet containing ARP data in the D2D data, where the header of the PDCP packet includes identification information indicating that the data contained in the PDCP packet is ARP data.
  • PDCP packet data convergence protocol
  • the transmitter 61 is further configured to select a preset first IP data in the radio bearer carrying D2D data for carrying the address resolution protocol ARP data, and transmit the D2D carried by the radio bearer by using the first D2D resource.
  • IP data in the data and/or
  • the transmitter 61 is further configured to select a preset radio bearer for carrying the address resolution protocol ARP data to carry the IP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second IP data is further configured to select a preset radio bearer for carrying the address resolution protocol ARP data to carry the IP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second IP data is further configured to select a preset radio bearer for carrying the address resolution protocol ARP data to carry the IP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second IP data is further configured to select a preset radio bearer for carrying the address resolution protocol ARP data to carry the IP data in the D2D data, and use the second D2D resource to transmit the D2D data carried by the radio bearer.
  • the second IP data is further configured to select
  • the radio bearer carries IP data in the D2D data, and may include:
  • the radio bearer carries a PDCP packet containing IP data in the D2D data, where the header of the PDCP packet includes identification information for processing IP data contained in the PDCP packet.
  • the user equipment determines whether the user equipment has sent a resource allocation request for requesting allocation of D2D resources to the base station; when the user equipment has been When the base station sends the resource allocation request, and the user equipment does not receive the target D2D resource allocation information requested by the resource allocation request sent by the base station, the user equipment performs the resource allocation request for avoiding The D2D resource is wasted resource processing operation; the user equipment selects the first D2D resource from the D2D resource pool that is pre-acquired by the user equipment. Thereby, the problem of allocation of D2D resources for D2D communication can be solved.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Le mode de réalisation de la présente invention concerne un procédé d'attribution de ressource D2D et un équipement utilisateur. Le procédé comprend les étapes suivantes : lors de la commutation à un mode d'attribution de ressource cible, l'équipement d'utilisateur détermine s'il a lui-même transmis une demande d'attribution de ressource à la station de base pour demander l'attribution de la ressource D2D, le mode d'attribution de ressource cible étant le mode d'attribution de ressource dans lequel l'équipement d'utilisateur choisit une ressource D2D d'après des règles préétablies à partir d'un groupe de ressources D2D préalablement obtenues par l'équipement utilisateur ; lorsqu'il a envoyé la demande d'attribution de ressource à la station de base mais n'a pas encore reçu les informations d'attribution de ressource cible D2D transmises par la station de base et demandées par la demande d'attribution de ressources, l'équipement d'utilisateur exécute une opération de traitement de ressource d'après la demande d'attribution de ressource afin d'éviter le gaspillage de ressource D2D ; l'équipement utilisateur choisit une première ressource D2D dans le groupe de ressources D2D préalablement obtenues par l'équipement utilisateur. Le mode de réalisation de la présente invention permet de résoudre le problème d'attribution de ressource D2D dans une communication D2D.
PCT/CN2014/087560 2014-09-26 2014-09-26 Procédé d'attribution de ressource d2d, et équipement utilisateur WO2016045090A1 (fr)

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CN201480035438.1A CN105684471B (zh) 2014-09-26 2014-09-26 一种d2d资源分配方法和用户设备

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CN108924892A (zh) * 2017-04-07 2018-11-30 华为技术有限公司 一种d2d通信方法及装置

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CN108924892A (zh) * 2017-04-07 2018-11-30 华为技术有限公司 一种d2d通信方法及装置

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