WO2015113398A1 - 一种资源分配方法、设备、系统及计算机存储介质 - Google Patents

一种资源分配方法、设备、系统及计算机存储介质 Download PDF

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Publication number
WO2015113398A1
WO2015113398A1 PCT/CN2014/085375 CN2014085375W WO2015113398A1 WO 2015113398 A1 WO2015113398 A1 WO 2015113398A1 CN 2014085375 W CN2014085375 W CN 2014085375W WO 2015113398 A1 WO2015113398 A1 WO 2015113398A1
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WO
WIPO (PCT)
Prior art keywords
resource
communication
semi
resource allocation
information
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Application number
PCT/CN2014/085375
Other languages
English (en)
French (fr)
Inventor
陈琳
李大鹏
黄莹
吴栓栓
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP20186208.3A priority Critical patent/EP3745798A1/en
Priority to US15/115,483 priority patent/US20170171837A1/en
Priority to EP14880686.2A priority patent/EP3101969B1/en
Publication of WO2015113398A1 publication Critical patent/WO2015113398A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a resource allocation method, device, system, and computer storage medium. Background technique
  • D2D device-to-device
  • D2D technology can work in licensed or unlicensed bands, allowing multiple D2D user devices
  • D2D UE D2D User Equipment
  • Figure 1 shows the communication mode of the D2D system. As shown in Figure 1, there are three main application scenarios for D2D:
  • UE1 and UE2 perform data interaction under the coverage of the cellular network, and the user plane data does not pass through the network infrastructure, as shown in mode 1 of FIG. 1;
  • the UE relay transmission in the weak/uncovered area allows the UE4 with poor signal quality to communicate with the network through the UE3 with network coverage nearby, which can help the operator to expand coverage and increase capacity.
  • the control plane and user plane between UE5, UE6 and UE7 do not go through the network infrastructure. Data communication with or without hops.
  • the D2D technology generally includes a D2D discovery technology and a D2D communication technology.
  • the D2D discovery technology is used to determine/determine the proximity between two or more D2D user devices (for example, within a range in which D2D direct communication is possible). Or a technique for determining/determining that the first user equipment is adjacent to the second user equipment.
  • the D2D user equipment can discover the other party by sending or receiving the discovery signal/information.
  • the network can assist the D2D user equipment to perform D2D discovery;
  • the D2D communication technology refers to the part between the D2D user equipment or A technique in which all communication data can communicate directly without going through a network infrastructure.
  • D2D communication in public security scenarios includes the following types: unicast, multicast, and broadcast.
  • Unicast refers to the one-to-one communication mode between D2D user equipments, and multicast and broadcast are one-to-many communication modes for D2D user equipment.
  • Unicast communication can be regarded as a special form of multicast communication. For example, a D2D communication group contains only two user equipments. In this case, D2D multicast communication is equivalent to unicast communication.
  • the communication requirements of public safety scenarios are highly robust, and can still provide maximum service in the event of current communication resources shortage or congestion or network infrastructure. Therefore, public safety requirements D2D communication not only works in a network coverage scenario, but also requires partial coverage and no network coverage scenarios.
  • the D2D user equipment can work in a self-organizing manner, or select some D2D user equipments as a central node (CN, Central Node) in a non-coverage environment. These central nodes provide similar base station functions.
  • the embodiments of the present invention provide a resource allocation method, device, system, and computer storage medium.
  • An embodiment of the present invention provides a resource allocation method, where the method is applied to a first user equipment.
  • the method includes:
  • the D2D transmission is performed by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information, and the D2D transmission is D2D discovery or D2D broadcast/multicast/unicast communication.
  • An embodiment of the present invention further provides a resource allocation method, where the method is applied to a node; the method includes:
  • the embodiment of the present invention further provides a resource allocation method, where the method is applied to a second user equipment; the method includes:
  • D2D reception is performed using a resource corresponding to information of at least one of the D2D resource pool information, the D2D resource configuration information, and the D2D resource allocation information.
  • An embodiment of the present invention further provides a resource allocation method, where the method includes:
  • the first user equipment sends a resource request message, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report; Receiving, by the node, the resource request message sent by the first user equipment;
  • the node allocates resources according to the resource request message
  • D2D resource configuration information and/or D2D resource allocation information corresponding to the resource Sending, by the node, D2D resource configuration information and/or D2D resource allocation information corresponding to the resource; the first user equipment and/or the second user equipment receiving the D2D resource configuration information and/or D2D resource allocation information;
  • the first user equipment and/or the second user equipment performs D2D transmission by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information, where the D2D transmission is D2D discovery or D2D broadcast/multicast/unicast communication. .
  • the embodiment of the invention further provides a user equipment, where the user equipment includes:
  • a first sending unit configured to send a resource request message, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report;
  • a first receiving unit configured to receive D2D resource configuration information and/or D2D resource allocation information
  • the first transmission unit is configured to perform D2D transmission by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information received by the first receiving unit, where the D2D transmission is D2D discovery or D2D broadcast/multicast / Unicast communication.
  • An embodiment of the present invention further provides a node, where the node includes:
  • a second receiving unit configured to receive a resource request message, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report;
  • An allocating unit configured to allocate resources according to the resource request message received by the second receiving unit
  • the second sending unit is configured to send D2D resource configuration information and/or D2D resource allocation information corresponding to the resource allocated by the allocating unit.
  • the embodiment of the invention further provides a user equipment, where the user equipment includes:
  • a third receiving unit configured to receive D2D resource configuration information and/or D2D resource allocation information
  • the second transmission unit is configured to perform D2D transmission by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information received by the third receiving unit.
  • the embodiment of the present invention further provides a resource allocation system, where the system includes: a first user equipment, a node, and a second user equipment;
  • the first user equipment is configured to send a resource request message to the node, where the resource request message is a D2D scheduling request message or a buffer status report;
  • the node is configured to be the resource request message sent by the first user equipment, allocate resources according to the resource request message, and send D2D resource configuration information and/or D2D corresponding to the resource to the second user equipment.
  • Resource allocation information ;
  • the second user equipment is configured to receive the D2D resource configuration information and/or D2D resource allocation information sent by the node, and perform D2D transmission by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the application of the first user equipment according to the embodiment of the present invention. Resource allocation method.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the resource applied to the node according to the embodiment of the present invention. Distribution method.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the application of the second user equipment according to the embodiment of the present invention. Resource allocation method.
  • the technical solution of the embodiment of the present invention sends a resource request message, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report; and receives D2D resource configuration information and/or D2D resource allocation information; D2D transmission is performed using the resources corresponding to the D2D resource configuration information and/or the D2D resource allocation information. Therefore, the user equipment can quickly and flexibly request through a simple process according to the technical solution proposed by the embodiment of the present invention.
  • D2D communication resources ensure the smooth distribution of D2D resources and subsequent D2D communication.
  • Figure 1 is a schematic diagram of a communication mode of a D2D system
  • FIG. 2 is a schematic flowchart of a resource allocation method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another resource allocation method according to an embodiment of the present invention
  • FIG. FIG. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a node 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. 8 is a schematic structural diagram of a resource allocation system according to an embodiment of the present invention
  • FIG. 9 is a resource allocation according to Embodiment 1 of the present invention
  • FIG. 10 is a schematic flowchart of a resource allocation method according to Embodiment 2 of the present invention
  • FIG. 11 is a schematic flowchart of a resource allocation method according to Embodiment 3 of the present invention
  • FIG. 13 is a schematic flowchart of a resource allocation method according to Embodiment 5 of the present invention
  • FIG. 13 is a schematic flowchart of a resource allocation method according to Embodiment 6 of the present invention
  • FIG. 15 is a schematic flowchart of a resource allocation method according to Embodiment 7 of the present invention
  • FIG. 16 is a schematic flowchart of a resource allocation method according to Embodiment 8 of the present invention
  • FIG. 18 is a schematic flowchart of a resource allocation method according to Embodiment 10 of the present invention
  • FIG. 19 is a schematic flowchart of a resource allocation method according to Embodiment 11 of the present invention
  • FIG. 20 is a schematic flowchart of a resource allocation method according to Embodiment 12 of the present invention
  • the technical problem to be solved by the embodiment of the present invention includes the D2D communication resource request problem of the UE. Since the base station cannot perceive the D2D bearer establishment and the service quality requirement, the D2D UE needs to explicitly notify the D2D buffer and the corresponding logical channel to the base station. Or a central control node. In addition, in order to save the signaling overhead required for scheduling, the D2D UE needs to trigger the semi-persistent scheduling and the period corresponding to the semi-persistent scheduling, and the quality of service information is sent to the base station or the central control node, so that the base station/central control node can correctly use the request according to the request. Resource scheduling method.
  • the foregoing embodiment of the present invention designs the above process, and provides a corresponding D2D bearer and a method for establishing and releasing a logical channel.
  • the user equipment can quickly and flexibly request D2D communication resources through a simple process as needed, thereby ensuring smooth D2D communication.
  • FIG. 2 is a schematic flowchart of a resource allocation method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 Send a resource request message, where the resource request message is a D2D scheduling request message or a buffer status report.
  • the D2D scheduling request message may include any combination of the following fields: D2D semi-persistent/dynamic scheduling request/release indication, D2D semi-persistent scheduling period, bit rate/resource size/buffer area size.
  • the buffer status report includes any combination of the following fields: D2D buffer indication, buffer size, D2D semi-continuous/dynamic scheduling request indication, D2D semi-persistent scheduling period.
  • the D2D scheduling request message and the buffer status report may further include any combination of the following fields: discovery/D2D multicast/broadcast/unicast communication identifier, D2D communication group identifier/communication target identifier; or
  • the D2D scheduling request message and the buffer status report may further include any combination of the following fields: D2D logical channel identifier/D2D logical channel group identifier, quality of service classification identifier, priority;
  • the D2D scheduling request message and the buffer status report may respectively include buffer information of one or more D2D logical channels, and the multiple D2D logical channels belong to the same D2D logical channel group.
  • Step 202 Receive D2D resource configuration information and/or D2D resource allocation information.
  • Step 203 Perform D2D transmission by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information, where the D2D transmission is D2D discovery or D2D broadcast/multicast/unicast communication.
  • the method further includes:
  • the D2D resource configuration information indicates semi-persistent scheduling, determining whether the D2D semi-persistent resource establishment or the D2D semi-persistent resource release obtains the first determination result; when the first determination result is the D2D semi-persistent resource establishment, according to the D2D
  • the D2D discovery/communication frame and/or the subframe offset in the resource allocation information and/or the subframe position of the received D2D resource configuration information determines the location of the D2D semi-persistent resource; when the first determination result is a D2D semi-persistent resource release When the D2D transmission/reception of the corresponding D2D semi-persistent resource is stopped.
  • the method further includes:
  • the determining whether the D2D resource configuration information and/or the D2D resource allocation information is a D2D transmission resource or a D2D reception resource includes:
  • the method before the sending the resource request message, the method further includes: sensing a service transmission requirement, determining whether a semi-persistent scheduling or a dynamic scheduling is required;
  • Radio Resource Control Protocol RRC, Radio
  • the method before the sending the resource request message, the method further includes: when the service data arrives, establishing a default D2D bearer and a corresponding logical channel/PDCP/LC entity; or
  • a D2D bearer corresponding to different quality of service and/or different communication targets and a corresponding logical channel/PDCP/LC entity are established.
  • the establishing a D2D bearer and/or a logical channel/PDCP/RLC entity corresponding to different quality of service includes:
  • a D2D bearer corresponding to different quality of service requirements and a corresponding logical channel/PDCP/RLC entity are negotiated with the communication target device.
  • the establishing a D2D bearer and/or a logical letter corresponding to different target communication objects Road / PDCP / LC entities including:
  • the D2D bearer corresponding to the D2D discovery and the corresponding logical channel/PDCP/LC entity are established according to the system pre-configuration;
  • D2D multicast communication When initiating D2D multicast communication, establishing a D2D bearer corresponding to the D2D communication group and a corresponding logical channel/PDCP/RLC entity according to the corresponding D2D communication group and system pre-configuration; or, when initiating D2D unicast communication, A D2D bearer corresponding to the D2D unicast communication target device and a corresponding logical channel/PDCP/RLC entity are established according to system pre-configuration or negotiation with the communication target device.
  • the user equipment that transmits the D2D data is referred to as a first user equipment, and also becomes a communication initiating device, and the user equipment that receives the D2D data is referred to as a second user equipment, also referred to as a communication target device.
  • the target communication object may be all the second/one user equipment corresponding to the D2D broadcast communication, and the D2D communication group member corresponding to the D2D multicast communication is the second/one user equipment; D2D The second/one user equipment corresponding to the unicast communication.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the resource allocation method according to the embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of another resource allocation method according to an embodiment of the present invention; as shown in FIG. 3, the method includes: Step 301: Receive a resource request The message, the resource request message is a D2D scheduling request message or a buffer status report.
  • Step 302 Allocate resources according to the resource request message.
  • Step 303 Send D2D resource configuration information and/or D2D resource allocation information corresponding to the resource.
  • the sending the D2D resource configuration information and/or the D2D corresponding to the resource Resource allocation information for:
  • the D2D resource configuration information and/or the D2D resource allocation information corresponding to the resource are sent by broadcast and/or proprietary signaling.
  • the sending the D2D resource configuration information and/or the D2D resource allocation information corresponding to the resource by using the dedicated signaling may be: sending the D2D resource configuration corresponding to the resource by using a new RRC message or by using an RRC message.
  • Information and/or D2D resource allocation information may be: sending the D2D resource configuration corresponding to the resource by using a new RRC message or by using an RRC message.
  • the D2D resource configuration information includes a D2D semi-persistent scheduling configuration
  • the D2D semi-persistent scheduling configuration includes: a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment/release indication, a transmission semi persistent scheduling configuration, and/or Receive semi-persistent scheduling configuration, and semi-persistent scheduling configuration period.
  • the D2D resource configuration information includes: a D2D discovery/broadcast/multicast/unicast communication identifier, a D2D multicast communication group identifier, and a D2D communication initiation device identifier.
  • the D2D resource allocation information includes: D2D communication time-frequency domain resources and transmission attribute information.
  • the D2D resource allocation information further includes: a D2D discovery/communication frame and/or a subframe offset.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the resource allocation method according to the embodiment of the present invention.
  • D2D reception is performed using a resource corresponding to information of at least one of the D2D resource pool information, the D2D resource configuration information, and the D2D resource allocation information.
  • the receiving the D2D resource pool information includes:
  • MME Mobility Management Entity
  • the D2D resource pool corresponds to a resource pool of a commercial application and/or a public security; the resource pool of the commercial application and the public security is divided into a resource pool corresponding to the coverage and the non-coverage scenario.
  • the method further includes:
  • the establishing a D2D bearer and/or a logical channel/PDCP/LC entity corresponding to different quality of service includes:
  • a D2D bearer corresponding to different quality of service requirements and a corresponding logical channel/PDCP/RLC entity are negotiated with the communication initiating device.
  • the establishing a D2D bearer and/or a logical channel/PDCP/RLC entity corresponding to different target communication objects includes:
  • the D2D bearer corresponding to the D2D broadcast communication initiating device and the logical channel identifier and the corresponding logical channel/PDCP are established according to the communication initiation device identifier and the logical channel identification information included in the received D2D data. /RLC entity; or,
  • the communication initiation device identifier and the logical channel identification information are associated with the communication initiation device and the target communication object identifier and the logic according to the D2D target communication object identifier included in the received D2D data.
  • the method further includes:
  • the D2D bearer/logical channel/PDCP/LC entity When the inactivity timer corresponding to the D2D bearer/logical channel/PDCP/LC entity times out, the D2D bearer/logical channel/PDCP/RLC entity is released.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the resource allocation method according to the embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another resource allocation method according to an embodiment of the present invention. As shown in FIG. 4, the method includes:
  • Step 401 The first user equipment sends a resource request message, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report.
  • Step 402 The node receives the resource request message sent by the first user equipment.
  • Step 403 The node allocates a resource according to the resource request message.
  • Step 404 The node sends the D2D resource configuration information and/or the D2D resource allocation information corresponding to the resource.
  • Step 405 The first user equipment and/or the second user equipment receive D2D resource configuration information and/or D2D resource allocation information.
  • Step 406 The first user equipment and/or the second user equipment perform D2D transmission by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information, where the D2D transmission is D2D discovery or D2D broadcast/multicast/ Unicast communication.
  • the D2D resource configuration information includes a D2D semi-persistent scheduling configuration; the D2D semi-persistent scheduling configuration includes: a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment/release indication, and a sending semi-persistent scheduling Configure and/or receive a semi-persistent scheduling configuration, and a semi-persistent scheduling configuration period.
  • the D2D resource configuration information includes: a D2D discovery/broadcast/multicast/unicast communication identifier, a D2D multicast communication group identifier, and a D2D communication initiation device identifier.
  • the D2D resource allocation information includes: D2D communication time-frequency domain resources, transmission attribute information, such as MCS, etc. Further, the D2D resource allocation information may further include a D2D discovery/communication frame and/or Subframe offset.
  • FIG. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present invention; as shown in FIG. 5, the user equipment includes: a first sending unit 501. Configure to send a resource request message, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report.
  • the first receiving unit 502 is configured to receive D2D resource configuration information and/or D2D resource allocation information.
  • the first transmission unit 503 is configured to perform D2D transmission by using the D2D resource configuration information and/or the resource corresponding to the D2D resource allocation information received by the first receiving unit 502, where the D2D transmission is D2D discovery or D2D broadcast/ Multicast/unicast communication.
  • the above user equipment refers to a user equipment that supports the D2D communication function.
  • the D2D scheduling request message includes any combination of the following fields:
  • D2D semi-persistent / dynamic scheduling request / release indication D2D semi-persistent scheduling period, bit rate / resource size / buffer size.
  • D2D buffer indication indicates buffer size, D2D semi-persistent/dynamic scheduling request indication, D2D semi-persistent scheduling period.
  • the D2D scheduling request message and the buffer status report respectively include any combination of the following fields:
  • the D2D scheduling request message and the buffer status report further include any combination of the following fields:
  • the D2D scheduling request message and the buffer status report respectively include one or Buffer information of a plurality of D2D logical channels, the plurality of D2D logical channels belonging to the same D2D logical channel group.
  • the user equipment further includes a processing unit 504, configured to determine whether the D2D semi-persistent resource establishment or the D2D semi-persistent resource release is obtained when the D2D resource configuration information indicates semi-persistent scheduling, and obtain the first judgment result. And determining, when the first determination result is a D2D semi-persistent resource establishment, determining a location of the D2D semi-persistent resource according to the D2D communication frame/subframe offset and/or the subframe position of receiving the D2D resource configuration information; The result of the judgment is that when the D2D semi-continuous resource is released, the D2D transmission/reception of the corresponding D2D semi-persistent resource is stopped.
  • a processing unit 504 configured to determine whether the D2D semi-persistent resource establishment or the D2D semi-persistent resource release is obtained when the D2D resource configuration information indicates semi-persistent scheduling, and obtain the first judgment result. And determining, when the first determination result is a D2D semi-persisten
  • the first transmission unit 503 is further configured to determine whether the D2D resource configuration information and/or the D2D resource allocation information is a D2D transmission resource or a D2D reception resource, to obtain a second determination result;
  • the D2D resource configuration information and/or the D2D resource allocation information is the D2D transmission resource
  • the D2D transmission is performed by using the corresponding resource
  • the D2D resource configuration information and/or the D2D resource allocation information is used as the second determination result.
  • D2D receives the resource D2D reception is performed at the corresponding resource location.
  • the first transmission unit 503 is configured to determine the D2D resource configuration information and when the received D2D resource configuration information and/or the D2D resource allocation information is a semi-persistent scheduling configuration. And/or the D2D resource allocation information is a sending resource; when the received D2D resource configuration information and/or the D2D resource allocation information is a receiving semi-persistent scheduling configuration, determining that the D2D resource configuration information and/or the D2D resource allocation information is Receiving resources; or,
  • the first sending unit 501 is configured to detect, before sending the resource request message, the transmission requirement of the service sent by the D2D bearer and the logical channel, and determine whether a semi-continuous scheduling or a dynamic scheduling is required;
  • the resource request message is sent through the PUCCH.
  • the first transmission unit 503 is further configured to establish a default D2D bearer and a corresponding logical channel/PDCP/LC entity when the service data arrives; or
  • a D2D bearer corresponding to different quality of service and/or different communication targets and a corresponding logical channel/PDCP/LC entity are established.
  • the processing unit 504 in the first user equipment may be implemented by a central processing unit (CPU) or a digital signal processor (DSP, Digital Signal) in the user equipment in an actual application.
  • a processor, or a Field-Programmable Gate Array (FPGA) the first sending unit 501 in the user equipment may be implemented by a transmitter or a transmitting antenna in the user equipment in an actual application;
  • the first receiving unit 502 in the user equipment may be implemented by a receiver or a receiving antenna in the user equipment in an actual application; the first transmission unit 503 in the user equipment may be used by the user equipment in an actual application.
  • the CPU, or DSP, or FPGA is implemented in conjunction with the transceiver.
  • FIG. 6 is a schematic structural diagram of a node according to an embodiment of the present invention. As shown in FIG. 6, the node includes:
  • the second receiving unit 601 is configured to receive a resource request message, where the resource request message is a D2D scheduling request message or a buffer status report.
  • the allocating unit 602 is configured to allocate resources according to the D2D scheduling request message or the buffer status report received by the second receiving unit 601;
  • the second sending unit 603 is configured to send the resource corresponding to the allocation by the allocating unit 602 D2D resource configuration information and/or D2D resource allocation information.
  • the above nodes may be base stations or user equipments that perform central control functions.
  • the node may also be referred to as a central node.
  • the second sending unit 603 is configured to send D2D resource configuration information and/or D2D resource allocation information corresponding to the resource by using a broadcast and/or a proprietary signaling.
  • the D2D resource configuration information includes a D2D semi-persistent scheduling configuration
  • the D2D semi-persistent scheduling configuration includes: a D2D semi-persistently scheduled air interface network temporary identifier, a D2D semi-persistent scheduling establishment/release indication, and a semi-persistent scheduling configuration. And/or receive a semi-persistent scheduling configuration, and a semi-persistent scheduling configuration period.
  • the D2D resource configuration information includes: a D2D discovery/broadcast/multicast/unicast communication identifier, a D2D multicast target communication group identifier, and a D2D communication initiation device identifier.
  • the D2D resource allocation information includes: D2D communication time-frequency domain resources and transmission attribute information.
  • the D2D resource allocation information further includes: a D2D discovery/communication frame and/or a subframe offset.
  • the allocation unit 602 in the node may be implemented by a CPU, or a DSP, or an FPGA in the node in an actual application; the second sending unit 603 in the node may be in an actual application.
  • the transmitter or the transmitting antenna in the node is implemented; the second receiving unit 601 in the node may be implemented by a receiver or a receiving antenna in the node in an actual application.
  • processing units in the nodes of the embodiments of the present invention may be understood by referring to the related descriptions of the foregoing resource allocation methods, and the processing units in the nodes of the embodiments of the present invention may implement the embodiments of the present invention.
  • the function of the analog circuit is implemented, and can also be implemented by running the software of the function described in the embodiment of the present invention on the smart terminal.
  • FIG. 7 is a schematic structural diagram of another user equipment according to an embodiment of the present invention. As shown in FIG. 7, the user equipment includes: The third receiving unit 701 is configured to receive D2D resource configuration information and/or D2D resource allocation information;
  • the second transmission unit 702 is configured to perform D2D transmission by using the resources corresponding to the D2D resource configuration information and/or the D2D resource allocation information received by the third receiving unit 701.
  • the third receiving unit 701 is configured to receive D2D resource pool information broadcast by the node or sent by using a proprietary signaling; and/or,
  • the third receiving unit 701 is further configured to: after receiving the D2D data, establish a default D2D bearer and a corresponding logical channel/PDCP/LC entity; or
  • D2D bearers and/or logical channels/PDCP/LC entities corresponding to different quality of service and/or different target communication objects are established.
  • the third receiving unit 701 is configured to establish a D2D bearer and a logical channel/PDCP/RLC entity corresponding to different QoS classification identifiers according to system pre-configuration; or, according to system pre-configuration, establish corresponding to one or D2D bearer and logical channel/PDCP/RLC entity with multiple different quality of service classification identifiers; or,
  • a D2D bearer corresponding to different quality of service requirements and a corresponding logical channel/PDCP/RLC entity are negotiated with the communication initiating device.
  • the third receiving unit 701 is configured to: when receiving the D2D broadcast communication, establish, according to the received communication initiating device identifier and the logical channel identifier information, the D2D broadcast communication initiating device and the The D2D bearer of the logical channel identifier and the corresponding logical channel/PDCP/RLC entity; or
  • the D2D target When receiving D2D multicast communication, according to the received D2D data, the D2D target is included.
  • the signaling object identifier, the communication initiating device identifier, and the logical channel identification information establish a D2D bearer corresponding to the communication initiating device and the target communication object identifier and the logical channel identifier, and a corresponding logical channel/PDCP/LC entity.
  • the third receiving unit 701 of the second user equipment may be implemented by a receiver or a receiving antenna in the user equipment in an actual application; a second transmission unit in the second user equipment. 702.
  • the transceiver or the transceiver antenna in the second user equipment may be implemented.
  • FIG. 8 is a schematic structural diagram of a resource allocation system according to an embodiment of the present invention. As shown in FIG. 8, the system includes: a first user equipment 801, a node 802. And a second user device 803; wherein
  • the first user equipment 801 is configured to send a resource request message to the node 802, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report;
  • the node 802 is configured to be the resource request message sent by the first user equipment 801; allocate resources according to the resource request message; and send D2D resource configuration information corresponding to the resource to the second user equipment 803. / or D2D resource allocation information;
  • the second user equipment 803 is configured to receive the D2D resource configuration information and/or D2D resource allocation information sent by the node 802, and perform D2D by using the resources corresponding to the D2D resource configuration information and/or the D2D resource allocation information. transmission.
  • the first embodiment to the fifth embodiment provide a method for the UE to request D2D communication resources for D2D communication and D2D communication resource release using a newly designed D2D scheduling request message.
  • Embodiment 1
  • UE1 and UE2 are within range of D2D communication with each other.
  • FIG. 9 is a schematic flowchart of a resource allocation method according to Embodiment 1 of the present invention; as shown in FIG. 9, the method includes:
  • Step 901 UE1 sends a D2D scheduling request message to the eNB through the PUCCH.
  • the D2D scheduling request message may include a D2D indication.
  • the D2D scheduling request message may further include a D2D semi-persistent scheduling indication or the like.
  • Step 902 After receiving the D2D scheduling request message, the eNB allocates the D2D air interface resource according to the indication of the scheduling request message.
  • Step 903 After completing the resource allocation, the eNB sends an RRC connection reconfiguration message to the UE1.
  • the RRC connection reconfiguration message includes D2D transmission semi-persistent configuration information, such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, a transmission semi-persistent scheduling configuration, or a semi-persistent scheduling configuration period.
  • Step 904 The eNB sends an RRC connection reconfiguration message to UE2.
  • the RRC connection reconfiguration message includes D2D receiving semi-persistent configuration information, such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, or a receiving semi-persistent scheduling configuration period.
  • D2D receiving semi-persistent configuration information such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, or a receiving semi-persistent scheduling configuration period.
  • Step 905 The eNB sends D2D resource allocation information to UE1 and UE2.
  • the resource allocation information includes: a location of the D2D resource, a size of the resource, and information such as an MCS mode used by the UE to transmit.
  • the D2D resource allocation information may be carried by physical layer signaling or RRC signaling.
  • Step 906 After receiving the D2D resource configuration information and the D2D resource allocation information, UE1 and UE2 perform D2D data broadcast transmission and reception on the allocated D2D semi-persistent resources.
  • Embodiment 2 In the public security scenario, Officer A, B, C, and D use public safety UE1, UE2, UE3, and UE4 with D2D capabilities. Officers A, B, C, and D all subscribe to public safety services. After Office A, B, C, and D arrive at the rescue location, their UEs are not within the network coverage, but UE1, UE2, UE3, and UE4 are within the D2D communication range of each other. UE4 now acts as a central control node, UE1, UE2 and UE3 both access UE4, and UE4 performs resource allocation.
  • FIG. 10 is a schematic flowchart of a resource allocation method according to Embodiment 2 of the present invention; as shown in FIG. 10, the method includes:
  • Step 1001 UE1 of Officer A sends a D2D scheduling request message.
  • the D2D scheduling request message may include a D2D semi-persistent scheduling indication, a semi-persistent scheduling interval, and the like.
  • the D2D scheduling request message may also optionally include a data bit rate and a communication type indication of the semi-persistent scheduling.
  • the data bit rate of the semi-persistent scheduling may be replaced by the number of bytes or the resource block size of the unit time semi-persistent scheduling.
  • the communication type indication is used to indicate whether the communication that the UE1 wants to initiate is broadcast, multicast, or unicast; correspondingly, after receiving the D2D scheduling request message, the central control node can serve as an allocation resource and whether the resource allocation information needs to be passed.
  • the proprietary signaling is also the reference basis for the broadcast to be sent to the relevant UE.
  • Step 1002 After receiving the D2D scheduling request message, the UE4, which is the central control node, allocates the air interface resource according to the indication of the scheduling request message.
  • Step 1003 After completing the resource allocation, the central control node sends an RRC connection reconfiguration message to UE1.
  • the RRC connection reconfiguration message includes D2D transmission semi-persistent configuration information, such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, a transmission semi-persistent scheduling configuration, or a semi-persistent scheduling configuration period;
  • the D2D resource configuration information may include a D2D broadcast communication identifier.
  • Step 1004 The central control node sends D2D resource allocation information to the UE1.
  • the D2D resource allocation information includes information such as a location of the D2D resource, a size of the D2D resource, and an MCS mode used when the UE transmits.
  • the D2D resource allocation information may be carried by physical layer signaling or RRC signaling. If the bearer is carried by the physical layer signaling, the UE1 calculates the subframe position of the resource allocation according to the semi-persistent scheduling configuration period included in the D2D transmission semi-persistent scheduling configuration and the subframe in which the D2D resource allocation information is received. If the RRC signaling is carried, the RRC signaling also needs to include location information of the start frame and the subframe.
  • Step 1005 After receiving the D2D resource configuration information and the D2D resource allocation information, the UE1 performs D2D data broadcast transmission on the allocated D2D semi-persistent resource.
  • the UE2 and the UE3 may monitor the D2D resource pool according to the D2D communication resource pool information pre-configured by the system or the D2D communication resource pool system information sent by the central control node, when the UE1 starts After the D2D broadcast data is transmitted, UE2 and UE3 can receive the D2D data.
  • Officer A, B, C, and D use public safety UE1, UE2, UE3, and UE4 with D2D capabilities.
  • Officers A, B, C, and D all subscribe to the public safety service, and UE1, UE2, and UE3 are all configured to belong to the D2D communication group X.
  • UE4 now acts as a central control node, UE1, UE2 and UE3 both access UE4, and UE4 performs resource allocation.
  • FIG. 11 is a schematic flowchart of a resource allocation method according to Embodiment 3 of the present invention; as shown in FIG. 11, the method includes:
  • Step 1101 UE1 of Officer A sends a D2D scheduling request message.
  • the D2D scheduling request message may include a D2D semi-persistent scheduling indication, a logical channel identifier carrying the multicast communication, and/or a corresponding quality of service classification identifier, a buffer size of the logical channel, and the like. Also.
  • the D2D scheduling request message may also optionally include a D2D communication group X. The corresponding group identifies the GID.
  • Step 1102 After receiving the D2D scheduling request message, the UE4, which is the central control node, performs admission control, and allocates the air interface resource according to the indication of the scheduling request message.
  • Step 1103 After the central control node completes the resource allocation, the D2D scheduling notification message is broadcasted and sent.
  • the D2D scheduling notification message includes D2D resource configuration information
  • the D2D resource configuration information includes D2D transmission semi-persistent configuration information, such as a D2D semi-persistent scheduling establishment indication, a transmission semi-persistent scheduling configuration, or a semi-persistent scheduling configuration period;
  • the D2D resource configuration information may further include a D2D multicast communication group identifier GID and/or a D2D transmission user equipment identifier.
  • the D2D scheduling notification message further includes D2D resource allocation information, such as D2D communication time-frequency domain resource and transmission attribute information MCS, etc. Further, the D2D scheduling notification message may further include D2D communication frame/subframe offset information.
  • Step 1104 After receiving the D2D resource configuration information and the D2D resource allocation information, the UE1 determines that the D2D sends the user equipment identifier to be consistent with itself, and then performs D2D data broadcast transmission on the allocated D2D semi-persistent resource.
  • the neighboring nodes UE2 and UE3 of UE1 may perform monitoring on the corresponding resources according to the semi-persistent resource configuration and allocation information included in the received D2D scheduling notification.
  • UE2 and UE3 You can receive D2D data.
  • FIG. 12 is a schematic flowchart of a resource allocation method according to Embodiment 4 of the present invention; as shown in FIG. 12, the method includes:
  • Step 1201 UE1 sends a D2D scheduling request message to the eNB.
  • the D2D scheduling request message may include a D2D semi-persistent scheduling indication, a semi-persistent scheduling interval, and the like.
  • the scheduling request message optionally includes semi-persistently scheduled data bits. Rate, communication type indication, and identification of the UE.
  • the data bit rate of the semi-persistent scheduling described herein may be replaced by a semi-persistently scheduled number of bytes or a resource block size.
  • the communication type indication is used to indicate whether the communication that the UE1 wants to initiate is broadcast, multicast, or unicast; correspondingly, after receiving the D2D scheduling request message, the eNB may serve as an allocation resource and whether the resource allocation information needs to be passed.
  • the proprietary signaling is also the reference basis for the broadcast to be sent to the relevant UE.
  • Step 1202 After receiving the D2D scheduling request message, the eNB performs admission control, and allocates air interface resources according to the indication of the scheduling request message.
  • Step 1203 After completing the resource allocation, the eNB sends an RRC connection reconfiguration message to UE1.
  • the RRC connection reconfiguration message includes D2D transmission semi-persistent configuration information, such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, a transmission semi-persistent scheduling configuration, or a semi-persistent scheduling configuration period.
  • Step 1204 The eNB sends an RRC connection reconfiguration message to UE2.
  • the RRC connection reconfiguration message includes D2D receiving semi-persistent configuration information, such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, or a receiving semi-persistent scheduling configuration period.
  • D2D receiving semi-persistent configuration information such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, or a receiving semi-persistent scheduling configuration period.
  • Step 1205 The eNB sends D2D resource allocation information to UE1 and UE2.
  • the D2D resource allocation information includes information such as a location of the D2D resource, a size of the D2D resource, and an MCS mode used when the UE transmits.
  • the D2D resource allocation information may be carried by physical layer signaling or RRC signaling.
  • Step 1206 After receiving the D2D resource configuration information and the D2D resource allocation information, the UE1 and the UE2 may perform D2D data broadcast transmission and reception on the allocated D2D semi-persistent resources.
  • FIG. 13 is a schematic flowchart of a resource allocation method according to Embodiment 5 of the present invention; as shown in Figure 13, the method includes:
  • Step 1301 UE1 sends a D2D scheduling request message including a D2D semi-persistent scheduling release indication to the eNB.
  • Step 1302 The eNB releases the corresponding D2D resource, and the D2D resource may be subsequently allocated to other D2D user equipments for use.
  • Step 1303 The eNB sends an RRC connection reconfiguration message including the D2D semi-persistent configuration release information to the UE1. After receiving the message, the UE1 releases the semi-persistent D2D communication configuration.
  • the sixth embodiment to the ninth embodiment show that the UE uses the enhanced buffer status report to request D2D communication resources for D2D communication and D2D communication resource release method.
  • Officer A, B, C, and D use public safety UE1, UE2, UE3, and UE4 with D2D capabilities. Officers A, B, C, and D all subscribe to public safety services. After the officers A, B, C, and D arrive at the rescue location, their UEs are not within the network coverage, but UE1, UE2, UE3, and UE4 are within the D2D communication range of each other. At this time, UE4 acts as a central control node, and UE1, UE2, and UE3 both access UE4, and UE4 performs resource allocation.
  • FIG. 14 is a schematic flowchart of a resource allocation method according to Embodiment 6 of the present invention; as shown in FIG. 14, the method includes:
  • Step 1401 UE1 of Officer A sends a D2D buffer status report.
  • the D2D buffer status report may include a D2D indication, a semi-persistent scheduling indication, and a semi-persistent scheduling interval.
  • the D2D buffer status report further includes a logical channel identifier corresponding to the D2D communication established by the UE1, a buffer size of the corresponding logical channel, and the like.
  • Step 1402 After receiving the D2D buffer status report, the UE4, which is the central control node, allocates the air interface resource according to the indication of the D2D buffer status report.
  • Step 1403 After completing the resource allocation, the central control node sends an RRC connection reconfiguration message to the UE1.
  • the RRC connection reconfiguration message includes D2D transmission semi-persistent configuration information, such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, a transmission semi-persistent scheduling configuration, or a semi-persistent scheduling configuration period.
  • D2D transmission semi-persistent configuration information such as a D2D semi-persistent scheduling air interface network temporary identifier, a D2D semi-persistent scheduling establishment indication, a transmission semi-persistent scheduling configuration, or a semi-persistent scheduling configuration period.
  • Step 1404 The central control node sends D2D resource allocation information to UE1.
  • the D2D resource allocation information includes information such as a location of a D2D time-frequency resource, a size of a D2D time-frequency resource, and an MCS mode used when the UE transmits.
  • the D2D resource allocation information may be carried by physical layer signaling or RRC signaling. If it is carried by the physical layer signaling, the UE1 calculates the subframe position of the resource allocation according to the semi-persistent scheduling configuration period included in the D2D transmission semi-persistent scheduling configuration and the subframe in which the D2D resource allocation information is received as the starting frame. If it is carried by RRC signaling, the RRC signaling also needs to include location information of the start frame and the subframe.
  • Step 1405 After receiving the D2D resource configuration information and the D2D resource allocation information, the UE1 may perform D2D data broadcast transmission on the allocated D2D semi-persistent resource.
  • UE2 and UE3 of UE1 For the neighboring nodes UE2 and UE3 of UE1, they can listen to the D2D resource pool according to the D2D communication resource pool information pre-configured by the system or the D2D communication resource pool system information sent by the central control node, and start the D2D broadcast data transmission by the UE1. After that, UE2 and UE3 can receive D2D data.
  • Officer A, B, C, and D use public safety UE1, UE2, UE3, and UE4 with D2D capabilities.
  • Officers A, B, C, and D all subscribe to the public safety service, and UE1, UE2, and UE3 are all configured to belong to the D2D communication group X.
  • UE4 now acts as a central control node, UE1, UE2 and UE3 both access UE4, and UE4 performs resource allocation.
  • FIG. 15 is a schematic flowchart of a resource allocation method according to Embodiment 7 of the present invention; as shown in FIG. 15, the method includes:
  • Step 1501 UE1 of Officer A sends a D2D buffer status report.
  • the D2D buffer status report may include a D2D indication, a semi-persistent scheduling indication, a logical channel identifier carrying the multicast communication, and/or a corresponding quality of service classification identifier, a buffer size of the logical channel, and the like.
  • the D2D buffer status report may further include a D2D communication group.
  • Step 1502 After receiving the D2D buffer status report, the UE4, which is the central control node, allocates the air interface resource according to the indication of the buffer status report.
  • Step 1503 After the central control node completes the resource allocation, the D2D resource allocation information is broadcast and sent.
  • the D2D resource allocation information includes D2D transmission semi-persistent configuration information, such as a D2D semi-persistent scheduling establishment indication and/or a transmission semi-persistent scheduling configuration period; and, the D2D resource allocation information may further include a D2D multicast communication group identifier. And/or D2D sends user equipment identification and the like.
  • the D2D resource allocation information further includes a D2D communication time-frequency domain resource and a transmission attribute information MCS. Further, the D2D resource allocation information may further include D2D communication frame/subframe offset information.
  • Step 1504 After receiving the D2D resource configuration information and the D2D resource allocation information, the UE1 determines that the D2D sends the user equipment identifier to be consistent with itself, and then performs D2D data broadcast transmission on the allocated D2D semi-persistent resource.
  • UE2 and UE3 of UE1 may perform monitoring on the corresponding resources according to the semi-persistent resource configuration and allocation information included in the received D2D resource allocation information.
  • UE2 and UE3 can receive D2D data.
  • FIG. 16 is a schematic flowchart of a resource allocation method according to Embodiment 8 of the present invention; as shown in FIG. 16, the method includes:
  • Step 1601 UE1 sends a D2D buffer status report to the eNB.
  • the D2D buffer status report may include a D2D indication, a logical channel group identifier corresponding to multiple logical channels carrying D2D communication, a buffer size of the corresponding logical channel group, a priority, and the like.
  • Step 1602 After receiving the D2D buffer status report, the eNB allocates the D2D air interface resource according to the indication of the D2D buffer status.
  • Step 1603 After completing the resource allocation, the eNB sends the D2D resource allocation information.
  • the D2D resource allocation information includes information such as a location of the D2D resource, a size of the D2D resource, and an MCS mode used when the UE transmits.
  • the D2D resource allocation information may be carried by physical layer signaling or RRC signaling.
  • Step 1604 After receiving the D2D resource allocation information, the UE1 may perform D2D transmission on the allocated D2D resource.
  • UE1 and UE2 are within range of D2D communication with each other.
  • FIG. 17 is a schematic flowchart of a resource allocation method according to Embodiment 9 of the present invention; as shown in FIG. 17, the method includes: Step 1701: UE1 sends a D2D buffer status report.
  • the buffer size is 0.
  • Step 1702 After receiving the D2D buffer status report, the eNB releases the corresponding D2D resource, and the resource can be subsequently allocated to other D2D user equipments.
  • Step 1703 The eNB sends an RRC connection reconfiguration message including the D2D semi-persistent configuration release information to the UE1 and the UE2. After receiving the RRC connection reconfiguration message, the UE1 and the UE2 release the message. Semi-continuous D2D communication configuration.
  • Embodiments 10 to 13 show a method for establishing and releasing a UE D2D bearer/logical channel/LC entity/PDCP entity and a method for acquiring a D2D resource pool.
  • Officer A, B, and C use public safety UE1, UE2, and UE3 with D2D capabilities.
  • Officers A, B, and C all subscribe to the public safety service, and UE1, UE2, and UE3 are all configured to belong to the D2D communication group X.
  • the officers A, B, and C arrive at the rescue location, they are all under the coverage of the base station, and UE1, UE2, and UE3 are within the D2D communication range of each other, and UE1, UE2, and UE3 are all connected to the eNB.
  • FIG. 18 is a schematic flowchart of a resource allocation method according to Embodiment 10 of the present invention; as shown in FIG. 18, the method includes:
  • Step 1801 UE1 of Officer A establishes a corresponding D2D bearer/logical channel/LC entity/PDCP entity according to different QOS class identifiers (QCIs) and/or different target communication objects according to the configuration provided in advance by the system.
  • QCIs QOS class identifiers
  • the current communication object may be a broadcast communication identifier, a D2D communication group identifier, or a receiving user equipment identifier of D2D unicast communication. In this example, it corresponds to the identity of the D2D communication group X.
  • Step 1802 UE1 performs a D2D transmission resource application through the eNB and acquires a D2D communication resource.
  • Step 1803 The UE1 performs data transmission by using the D2D bearer and the corresponding logical channel according to the allocated D2D resource.
  • the data packet assembled by the UE1 needs to include the identification information of the UE1.
  • the data packet also needs to carry the corresponding QCI or the corresponding logical channel identifier.
  • Information if the D2D bearer/logical channel/LC entity/PDCP entity is established according to different target communication objects, the data packet needs to carry the target communication object identifier; if the D2D bearer/logical channel/LC entity/PDCP entity is not based on When the same QCI and different target communication objects are established, the data packet needs to carry the corresponding QCI or logical channel identification information and the target communication object identification information at the same time.
  • Step 1804 After receiving the D2D multicast data packet sent by the UE1, the UE2 and the UE3 determine, according to the source UE identifier, the target communication object identifier, and the logical channel identifier information included in the D2D multicast data packet, whether the corresponding The D2D bearer/logical channel/LC entity/PDCP entity, if it has been established, is handed over to the radio link control (RLC, Radio Link Control) and the Packet Data Convergence Protocol (PDCP) entity of the bearer. Parsing, if not established, first establish a corresponding D2D bearer/logical channel/LC entity/PDCP entity, and then hand it to the RLC corresponding to the bearer and the PDCP entity for subsequent parsing.
  • RLC Radio Link Control
  • PDCP Packet Data Convergence Protocol
  • FIG. 19 is a schematic flowchart of a resource allocation method according to Embodiment 11 of the present invention; as shown in FIG. 19, the method includes:
  • Step 1901 UE1 and UE2 establish a D2D bearer/logical channel/LC entity/PDCP entity through negotiation.
  • Step 1902 UE1 initiates application for D2D resources.
  • Step 1903 After obtaining the D2D resource, use the resource to perform D2D communication through the corresponding D2D bearer/logical channel/LC entity/PDCP entity.
  • the UE uses the D2D bearer/logical channel/LC entity/PDCP entity to transmit the D2D data packet and/or receive.
  • the UE sets an inactivity timer, which is reset every time a packet is sent or received. If the UE is in the D2D bearer/logical channel/LC entity for a long time The D2D data packet is not received or received on the PDCP entity, so that the inactivity timer corresponding to the D2D bearer/logical channel/LC entity/PDCP entity times out, the UE releases the bearer.
  • FIG. 20 is a schematic flowchart of a resource allocation method according to Embodiment 12 of the present invention; as shown in FIG. 20, the method includes:
  • Step 2001 The UE creates a D2D bearer/logical channel/LC entity/PDCP entity.
  • the UE may create a D2D bearer/logical channel/LC entity/PDCP entity according to the method described in Embodiment 10 or Embodiment 11, and details are not described herein again.
  • Step 2002 The UE uses the D2D bearer/logical channel/LC entity/PDCP entity to send and receive D2D data packets, and resets the inactivity timer every time the data packet is sent or received.
  • the UE sets an inactivity timer.
  • Step 2003 Determine whether the inactivity timer corresponding to the D2D bearer/logical channel/LC entity/PDCP entity times out. When the result of the determination is yes, step 2004 is performed; when the result of the determination is no, step 2002 is performed again.
  • the inactivity timer corresponding to the D2D bearer/logical channel/LC entity/PDCP entity times out.
  • Step 2004 The UE releases the bearer/logical channel/LC entity/PDCP entity corresponding to the inactivity timer.
  • FIG. 21 is a schematic flowchart of a resource allocation method according to Embodiment 13 of the present invention. As shown in FIG. 21, the method includes:
  • Step 2101 When UE1 is in network coverage, UE1 may receive D2D broadcast by the base station. Resource pool information.
  • Step 2102 The UE may obtain the D2D resource pool information from the MME or the D2D server or the ProSe server when attaching to the network or performing tracking area update.
  • the resource pool here can be applied to public security scenarios.
  • the D2D resource pool includes not only the resources that cover the scene, but also the resource information of the uncovered scene.
  • the D2D resource pool can be for D2D discovery or D2D communication.
  • step 2103 The base station may send a D2D scheduling notification message, where the D2D scheduling notification message includes a D2D resource that has been allocated to the UE in the serving cell from the D2D resource pool.
  • Step 2104 The UE1 can monitor and receive the D2D discovery/communication data according to the D2D resource pool information and the optional D2D scheduling notification message.
  • UE1 needs to listen to all resource pools at the same time. If UE1 is in an uncovered state, UE1 may only listen to resources corresponding to the unsecured scenario of public security.
  • the method, system, user equipment, and computer storage medium provided by the embodiments of the present invention can quickly and flexibly request D2D communication resources through a simple process as needed, thereby ensuring D2D resource allocation and subsequent D2D communication smoothly.
  • the method proposed by the present invention is also applicable to business application scenario communication.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment of a combination of software and hardware. Moreover, the invention can be embodied in the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the embodiment of the present invention sends a resource request message, where the resource request message is a device-to-device D2D scheduling request message or a buffer status report; receiving D2D resource configuration information and/or D2D resource allocation information; using the D2D
  • the resources corresponding to the resource configuration information and/or the D2D resource allocation information are D2D transmitted. Therefore, the user equipment can quickly and flexibly request D2D communication resources through a simple process as needed, and ensure the smooth distribution of D2D resources and subsequent D2D communication.

Abstract

本发明实施例公开了一种资源分配方法、设备、系统及计算机存储介质;其中,所述方法包括:发送资源请求消息,所述资源请求消息为设备到设备D2D调度请求消息或缓冲区状态报告;接收D2D资源配置信息和/或D2D资源分配信息;使用所述D2D资源配置信息和/或D2D资源分配信息对应的资源进行D2D传输,所述D2D传输是D2D发现或是D2D广播/组播/单播通信。

Description

一种资源分配方法、 设备、 系统及计算机存储介质 技术领域
本发明涉及无线通信技术, 尤其涉及一种资源分配方法、 设备、 系统 及计算机存储介质。 背景技术
随着无线多媒体业务的发展, 人们对高数据速率和用户体验的需求日 益增长, 从而对传统蜂窝网络的系统容量和覆盖提出了较高要求。 另一方 面公共安全、 社交网络、 近距离数据共享、 本地广告等应用场景使得人们 对了解附近人或事物并与之通信的需求逐渐增加。 传统的以基站为中心的 种需求背景下, 代表未来通信技术发展新方向的设备到设备 (D2D, Device-to-Device )技术应运而生。 D2D技术的应用, 可以减轻蜂窝网络的 负担、 减少用户设备的电池功耗、 提高数据速率, 并改善网络基础设施的 鲁棒性, 很好地满足上述高数据速率业务和邻近服务的要求。
D2D技术可以工作在授权频段或非授权频段,允许多个 D2D用户设备
( D2D UE, D2D User Equipment )在有网络基础设施或无网络基础设施的 情况下进行直接发现 /直接通信。 图 1为 D2D系统通信模式示意图; 如图 1 所示, D2D的应用场景主要有三种:
UE1和 UE2在蜂窝网络的覆盖下进行数据交互, 用户面数据不经过网 络基础设施, 如图 1的模式 1 ;
在弱 /无覆盖区域的 UE中继传输,如图 1中的模式 2,允许信号质量较 差的 UE4通过附近有网络覆盖的 UE3与网络进行通信,能帮助运营商扩展 覆盖、 提高容量 在发生地震或紧急情况, 蜂窝网络不能正常工作的情况下, 允许设备 间直接通信, 如图 1 中的模式 3, UE5、 UE6和 UE7间控制面和用户面都 不经过网络基础设施而进行一跳或多跳的数据通信。
D2D技术通常包括 D2D发现技术和 D2D通信技术; 其中, D2D发现 技术是指用于判断 /确定两个或多个 D2D用户设备之间相互邻近(例如, 在 可进行 D2D直接通信的范围之内)或者用于判断 /确定第一用户设备邻近第 二用户设备的技术。 通常, D2D用户设备间可通过发送或接收发现信号 /信 息来发现对方, 在有蜂窝网络覆盖的情况下, 网络可辅助 D2D用户设备进 行 D2D发现; D2D通信技术是指 D2D用户设备之间部分或全部通信数据 可以不通过网络基础设施而直接进行通信的技术。
从公共安全的角度来看, 公共安全网络系统需要为第一响应人提供多 媒体等服务手段来完成任务, 要求具有单点通信和组内通信功能。 具体来 讲, 公共安全场景的 D2D通信包含如下类型: 单播、 组播和广播。 单播指 D2D用户设备之间一对一的通信模式, 而组播与广播是针对 D2D用户设备 一对多的通信模式。 单播通信可看成是组播通信的特殊形式, 如 D2D通信 组内只包含两个用户设备,此时 D2D组播通信相当于单播通信。与此同时, 公共安全场景的通信要求具有很强的鲁棒性, 能够在当前通信资源短缺或 者拥塞或者网络基础设施瘫痪的情况下仍然能够最大限度的提供服务。 因 此公共安全要求 D2D通信不仅在有网络覆盖场景下工作, 也要求在部分覆 盖以及无网络覆盖场景下工作。 在无网络覆盖场景下, D2D用户设备可以 通过自组织的方式工作, 也可以在无覆盖环境下选取一些 D2D用户设备作 为中央节点 (CN, Central Node ), 这些中央节点提供类似基站的功能。
但是, 适用于蜂窝网络的通信资源分配方案, 并不能适用于 D2D发现 /通信系统。 目前, 对于 D2D系统还没有系统的发现 /通信资源分配方案。 发明内容
为解决现有存在的技术问题, 本发明实施例提供一种资源分配方法、 设备、 系统及计算机存储介质。
本发明实施例提供了一种资源分配方法, 所述方法应用于第一用户设 备中; 所述方法包括:
发送资源请求消息, 所述资源请求消息为 D2D调度请求消息或緩冲区 状态报告;
接收 D2D资源配置信息和 /或 D2D资源分配信息;
使用所述 D2D资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输, 所述 D2D传输是 D2D发现或是 D2D广播 /组播 /单播通信。
本发明实施例还提供一种资源分配方法, 所述方法应用于节点中; 所 述方法包括:
接收资源请求消息, 所述资源请求消息为 D2D调度请求消息或緩冲区 状态报告;
根据所述资源请求消息分配资源;
发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息。 本发明实施例还提供了一种资源分配方法, 所述方法应用于第二用户 设备中; 所述方法包括:
接收 D2D资源池信息; 和 /或,
接收 D2D资源配置信息和 /或 D2D资源分配信息;
使用所述 D2D资源池信息、 所述 D2D资源配置信息、 所述 D2D资源 分配信息中的至少之一的信息对应的资源进行 D2D接收。
本发明实施例还提供了一种资源分配方法, 所述方法包括:
第一用户设备发送资源请求消息, 所述资源请求消息为设备到设备 D2D调度请求消息或緩冲区状态报告; 节点接收所述第一用户设备发送的所述资源请求消息;
节点根据所述资源请求消息分配资源;
节点发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息; 第一用户设备和 /或第二用户设备接收所述 D2D 资源配置信息和 /或 D2D资源分配信息;
第一用户设备和 /或第二用户设备使用所述 D2D 资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输, 所述 D2D传输是 D2D发现 或是 D2D广播 /组播 /单播通信。
本发明实施例还提供了一种用户设备, 所述用户设备包括:
第一发送单元, 配置为发送资源请求消息, 所述资源请求消息为设备 到设备 D2D调度请求消息或緩冲区状态报告;
第一接收单元, 配置为接收 D2D资源配置信息和 /或 D2D资源分配信 息;
第一传输单元, 配置为使用所述第一接收单元接收的所述 D2D资源配 置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输, 所述 D2D传输 是 D2D发现或是 D2D广播 /组播 /单播通信。
本发明实施例还提供了一种节点, 所述节点包括:
第二接收单元, 配置为接收资源请求消息, 所述资源请求消息为设备 到设备 D2D调度请求消息或緩冲区状态报告;
分配单元, 配置为根据所述第二接收单元接收的所述资源请求消息分 配资源;
第二发送单元, 配置为发送所述分配单元分配的所述资源对应的 D2D 资源配置信息和 /或 D2D资源分配信息。
本发明实施例还提供了一种用户设备, 所述用户设备包括:
第三接收单元, 配置为接收 D2D资源配置信息和 /或 D2D资源分配信 息; 第二传输单元, 配置为使用所述第三接收单元接收的所述 D2D资源配 置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输。
本发明实施例还提供了一种资源分配系统, 所述系统包括: 第一用户 设备、 节点以及第二用户设备; 其中,
所述第一用户设备, 配置为向所述节点发送资源请求消息, 所述资源 请求消息为 D2D调度请求消息或緩冲区状态报告;
所述节点, 配置为所述第一用户设备发送的所述资源请求消息; 根据 所述资源请求消息分配资源; 向所述第二用户设备发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息;
所述第二用户设备, 配置为接收所述节点发送的所述 D2D资源配置信 息和 /或 D2D资源分配信息;使用所述 D2D资源配置信息和 /或 D2D资源分 配信息对应的资源进行 D2D传输。
本发明实施例还提供了一种计算机存储介质, 所述计算机存储介质中 存储有计算机可执行指令, 所述计算机可执行指令用于执行权利要求本发 明实施例所述的应用于第一用户设备中的资源分配方法。
本发明实施例还提供了一种计算机存储介质, 所述计算机存储介质中 存储有计算机可执行指令, 所述计算机可执行指令用于执行权利要求本发 明实施例所述的应用于节点中的资源分配方法。
本发明实施例还提供了一种计算机存储介质, 所述计算机存储介质中 存储有计算机可执行指令, 所述计算机可执行指令用于执行权利要求本发 明实施例所述的应用于第二用户设备中的资源分配方法。
由上可知, 本发明实施例的技术方案通过发送资源请求消息, 所述资 源请求消息为设备到设备 D2D调度请求消息或緩冲区状态报告;接收 D2D 资源配置信息和 /或 D2D资源分配信息; 使用所述 D2D资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输。 由此, 通过本发明实施例提 出的技术方案, 用户设备可以根据需要通过简单的流程快速灵活的请求 D2D通信资源, 确保 D2D资源的分配及后续 D2D通信的顺利进行。 附图说明
图 1为 D2D系统通信模式示意图;
图 2为本发明实施例提供的一种资源分配方法的流程示意图; 图 3为本发明实施例提供的另一种资源分配方法的流程示意图; 图 4为本发明实施例提供的再一种资源分配方法的流程示意图; 图 5为本发明实施例提供的一种用户设备的结构示意图;
图 6为本发明实施例提供的一种节点的结构示意图;
图 7为本发明实施例提供的另一种用户设备的结构示意图; 图 8为本发明实施例提供的一种资源分配系统的结构示意图; 图 9 为本发明实施例一提供的一种资源分配方法的流程示意图; 图 10为本发明实施例二提供的一种资源分配方法的流程示意图; 图 11为本发明实施例三提供的一种资源分配方法的流程示意图; 图 12为本发明实施例四提供的一种资源分配方法的流程示意图; 图 13为本发明实施例五提供的一种资源分配方法的流程示意图; 图 14为本发明实施例六提供的一种资源分配方法的流程示意图; 图 15为本发明实施例七提供的一种资源分配方法的流程示意图; 图 16为本发明实施例八提供的一种资源分配方法的流程示意图; 图 17为本发明实施例九提供的一种资源分配方法的流程示意图; 图 18为本发明实施例十提供的一种资源分配方法的流程示意图; 图 19为本发明实施例十一提供的一种资源分配方法的流程示意图; 图 20为本发明实施例十二提供的一种资源分配方法的流程示意图; 图 21为本发明实施例十三提供的一种资源分配方法的流程示意图。 具体实施方式
本发明实施例要解决的技术问题包括 UE的 D2D通信资源请求问题, 由于基站无法感知 D2D承载建立及业务服务质量要求, 因此需要 D2D UE 明确的将 D2D的緩冲区, 对应的逻辑信道告知基站或中央控制节点。 此外 为了节省调度需要的信令开销, D2D UE需要将是否触发半持续调度以及半 持续调度对应的周期, 服务质量信息发送给基站或中央控制节点, 使基站 / 中央控制节点能根据请求釆用正确的资源调度方式。 本发明实施例对上述 流程进行了设计, 并给出了相应的 D2D承载以及逻辑信道的建立及释放方 法。 通过本发明实施例提出的技术方案, 用户设备可以根据需要通过简单 的流程快速灵活的请求 D2D通信资源, 确保 D2D通信的顺利进行。
本发明实施例提供了一种资源分配方法; 图 2 为本发明实施例提供的 一种资源分配方法的流程示意图, 如图 2所示, 所述方法包括:
步骤 201 : 发送资源请求消息, 所述资源请求消息为 D2D调度请求消 息或緩冲区状态报告。
这里, 所述 D2D调度请求消息可以包括以下字段的任意组合: D2D半 持续 /动态调度请求 /释放指示、 D2D半持续调度周期、 比特率 /资源大小 /緩 冲区大小。
所述緩冲区状态报告包括以下字段的任意组合: D2D緩冲区指示、 緩 冲区大小、 D2D半持续 /动态调度请求指示、 D2D半持续调度周期。
所述 D2D调度请求消息和所述緩冲区状态报告还可包括以下字段任意 组合:发现 /D2D组播 /广播 /单播通信标识、 D2D通信组标识 /通信目标标识; 或者,
所述 D2D调度请求消息和所述緩冲区状态报告还可包括以下字段任意 组合: D2D逻辑信道标识 /D2D逻辑信道组标识、 服务质量分类标识、 优先 级; 所述 D2D调度请求消息和所述緩冲区状态报告可分别包括一个或多个 D2D逻辑信道的緩冲区信息, 所述多个 D2D逻辑信道属于同一 D2D逻辑 信道组。
步骤 202: 接收 D2D资源配置信息和 /或 D2D资源分配信息。
步骤 203: 使用所述 D2D资源配置信息和 /或 D2D资源分配信息对应 的资源进行 D2D传输, 所述 D2D传输是 D2D发现或是 D2D广播 /组播 /单 播通信。
在一实施例中, 所述接收 D2D资源配置信息和 /或 D2D资源分配信息 之后, 所述方法还包括:
当所述 D2D资源配置信息指示半持续调度时,判断是 D2D半持续资源 建立还是 D2D半持续资源释放, 获得第一判断结果; 当所述第一判断结果 是 D2D半持续资源建立时,根据 D2D资源分配信息中的 D2D发现 /通信帧 和 /或子帧偏移和 /或接收 D2D资源配置信息的子帧位置确定 D2D半持续资 源的位置; 当所述第一判断结果是 D2D 半持续资源释放时, 停止在相应 D2D半持续资源的 D2D发送 /接收。
在另一实施例中, 所述接收 D2D资源配置信息和 /或 D2D资源分配信 息之后, 所述方法还包括:
判断所述 D2D资源配置信息和 /或 D2D资源分配信息是 D2D发送资源 还是 D2D接收资源, 获得第二判断结果; 当所述第二判断结果所述 D2D 资源配置信息和 /或 D2D资源分配信息是 D2D发送资源时, 使用相应资源 进行 D2D发送; 当所述第二判断结果所述 D2D资源配置信息和 /或 D2D资 源分配信息是 D2D接收资源时, 在相应资源位置进行 D2D接收。
在另一实施例中, 所述判断所述 D2D资源配置信息和 /或 D2D资源分 配信息是 D2D发送资源还是 D2D接收资源, 包括:
当收到的所述 D2D资源配置信息和 /或 D2D资源分配信息是发送半持 续调度配置时, 判定所述 D2D资源配置信息和 /或 D2D资源分配信息是发 送资源; 当收到的所述 D2D资源配置信息和 /或 D2D资源分配信息是接收 半持续调度配置时, 判定所述 D2D资源配置信息和 /或 D2D资源分配信息 是接收资源; 或者,
判断所述 D2D资源配置信息包含的 D2D用户设备标识与存储的用户设 备标识是否一致, 获得第三判断结果; 当所述第三判断结果为一致时, 判 定是发送资源, 当所述第三判断结果为不一致时, 判定是接收资源。
在另一实施例中, 所述发送资源请求消息之前, 所述方法还包括: 感知业务传输需求, 判断需要半持续调度还是动态调度;
当有足够的上行空口资源时, 通过无线资源控制协议 (RRC, Radio
Resource Control )信令或是 MAC CE发送资源请求消息;
当没有足够的上行空口资源时,通过物理上行链路控制信道(PUCCH,
Physical Uplink Control Channel )发送資源请求消息。
在另一实施例中, 所述发送资源请求消息之前, 所述方法还包括: 业务数据到达时, 建立默认的 D2D承载及对应的逻辑信道/ PDCP/ LC 实体; 或,
业务数据到达时, 建立对应于不同服务质量和 /或不同通信目标的 D2D 承载及对应的逻辑信道 /PDCP/ LC实体。
这里, 所述建立对应于不同服务质量的 D2D 承载和 /或逻辑信道 /PDCP/RLC实体, 包括:
根据系统预配置建立与不同服务质量分类标识——对应的 D2D承载及 逻辑信道/ PDCP/RLC实体; 或,
根据系统预配置建立对应于一个或多个不同服务质量分类标识的 D2D 承载及逻辑信道 /PDCP/RLC实体; 或,
与通信目标设备协商建立对应于不同服务质量要求的 D2D承载及对应 的逻辑信道/ PDCP/RLC实体。
另一方面,所述建立对应于不同目标通信对象的 D2D承载和 /或逻辑信 道/ PDCP/ LC实体, 包括:
当发起 D2D发现时, 根据系统预配置建立对应于 D2D发现的 D2D承 载及对应的逻辑信道 /PDCP/ LC实体; 或,
当发起 D2D广播通信时,根据系统预配置建立对应于 D2D广播通信的 D2D承载及对应的逻辑信道 /PDCP/RLC实体; 或,
当发起 D2D组播通信时,根据对应的 D2D通信组及系统预配置建立对 应于所述 D2D通信组的 D2D承载及对应的逻辑信道 /PDCP/RLC实体; 或, 当发起 D2D单播通信时, 根据系统预配置或与通信目标设备协商建立 对应于 D2D单播通信目标设备的 D2D承载及对应的逻辑信道 /PDCP/RLC 实体。
这里, 发送 D2D数据的用户设备称为第一用户设备, 也成为通信发起 设备,接收 D2D数据的用户设备称为第二用户设备,也称为通信目标设备。
如果所述用户设备是第一 /二用户设备,则目标通信对象可以是 D2D广 播通信对应的所有第二 /一用户设备, D2D组播通信对应的 D2D通信组成 员第二 /一用户设备; D2D单播通信对应的第二 /一用户设备。
本发明实施例还提供了一种计算机存储介质, 所述计算机存储介质中 存储有计算机可执行指令, 所述计算机可执行指令用于执行本发明实施例 所述的资源分配方法。
本发明实施例还提供了另一种资源分配方法, 图 3 为本发明实施例提 供的再一种资源分配方法的流程示意图; 如图 3所示, 所述方法包括: 步骤 301 : 接收资源请求消息, 所述资源请求消息为 D2D调度请求消 息或緩冲区状态报告。
步骤 302: 根据所述资源请求消息分配资源。
步骤 303: 发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分 配信息。
在一实施例中,所述发送所述资源对应的 D2D资源配置信息和 /或 D2D 资源分配信息, 为:
通过广播和 /或专有信令发送所述资源对应的 D2D 资源配置信息和 /或 D2D资源分配信息。
这里, 所述通过专有信令发送所述资源对应的 D2D 资源配置信息和 / 或 D2D资源分配信息可以为: 通过新的 RRC消息或是以有的 RRC消息发 送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息。
这里, 所述 D2D资源配置信息包括 D2D半持续调度配置; 所述 D2D 半持续调度配置包括: D2D半持续调度空口网络临时标识、 D2D半持续调 度建立 /释放指示、 发送半持续调度配置和 /或接收半持续调度配置、 以及半 持续调度配置周期。
所述 D2D资源配置信息包括: D2D发现 /广播 /组播 /单播通信标识、 D2D 组播通信组标识以及 D2D通信发起设备标识。
所述 D2D资源分配信息包括: D2D通信时频域资源和传输属性信息。 所述 D2D资源分配信息还包括: D2D发现 /通信帧和 /或子帧偏移。 本发明实施例还提供了一种计算机存储介质, 所述计算机存储介质中 存储有计算机可执行指令, 所述计算机可执行指令用于执行本发明实施例 所述的资源分配方法。
本发明实施例提供的又一种资源分配方法, 所述方法包括:
接收 D2D资源池信息; 和 /或,
接收 D2D资源配置信息和 /或 D2D资源分配信息;
使用所述 D2D资源池信息、 所述 D2D资源配置信息、 所述 D2D资源 分配信息中的至少之一的信息对应的资源进行 D2D接收。
在另一实施例中, 所述接收 D2D资源池信息包括:
接收节点广播或通过专有信令发送的 D2D资源池信息; 和 /或, 在附着到网络或进行跟踪区域更新时接收移动管理实体 ( MME, Mobility Management Entity )发送的 D2D资源池信息或从 D2D服务器 /近距 离业务服务器获取 D2D资源池信息;
其中, 所述 D2D资源池对应于商业应用和 /或公共安全的资源池; 所述商业应用及公共安全的资源池分为有覆盖以及无覆盖场景对应的 资源池。
在另一实施例中, 所述方法还包括:
接收所述 D2D数据后, 建立默认的 D2D承载及对应的逻辑信道; 或, 接收所述 D2D数据后,建立对应于不同服务质量和 /或不同目标通信对 象的 D2D承载和 /或逻辑信道 /PDCP/ LC实体。
这里, 所述建立对应于不同服务质量的 D2D 承载和 /或逻辑信道 /PDCP/ LC实体, 包括:
根据系统预配置建立与不同服务质量分类标识——对应的 D2D承载及 逻辑信道/ PDCP/RLC实体; 或,
根据系统预配置建立对应于一个或多个不同服务质量分类标识的 D2D 承载及逻辑信道 /PDCP/RLC实体; 或,
与通信发起设备协商建立对应于不同服务质量要求的 D2D承载及对应 的逻辑信道/ PDCP/RLC实体。
另一方面,所述建立对应于不同目标通信对象的 D2D承载和 /或逻辑信 道/ PDCP/RLC实体, 包括:
当接收 D2D广播通信时,根据接收到的 D2D数据包含的通信发起设备 标识以及逻辑信道标识信息建立对应于所述 D2D广播通信发起设备及所述 逻辑信道标识的 D2D承载及对应的逻辑信道/ PDCP/RLC实体; 或,
当接收 D2D组播通信时, 根据接收到的 D2D数据包含的 D2D目标通 信对象标识, 通信发起设备标识以及逻辑信道标识信息建立对应于所述通 信发起设备及所述目标通信对象标识及所述逻辑信道标识的 D2D承载及对 应的逻辑信道 /PDCP/RLC实体。
另一方面,所述 D2D承载及对应的逻辑信道/ PDCP/RLC实体后建立后, 所述方法还包括:
设置 D2D承载 /逻辑信道/ PDCP/ LC 实体不活动定时器, 每次数据包 发送或接收时, 对所述定时器进行重置;
当所述 D2D承载 /逻辑信道 /PDCP/ LC 实体对应的不活动定时器超时 时, 释放所述 D2D承载 /逻辑信道/ PDCP/RLC实体。
本发明实施例还提供了一种计算机存储介质, 所述计算机存储介质中 存储有计算机可执行指令, 所述计算机可执行指令用于执行本发明实施例 所述的资源分配方法。
本发明实施例提供了再一种资源分配方法; 图 4 为本发明实施例提供 的再一种资源分配方法的流程示意图; 如图 4所示, 所述方法包括:
步骤 401 : 第一用户设备发送资源请求消息, 所述资源请求消息为设备 到设备 D2D调度请求消息或緩冲区状态报告。
步骤 402: 节点接收所述第一用户设备发送的所述资源请求消息。
步骤 403: 节点根据所述资源请求消息分配资源;。
步骤 404: 节点发送所述资源对应的 D2D资源配置信息和 /或 D2D资 源分配信息。
步骤 405: 第一用户设备和 /或第二用户设备接收 D2D资源配置信息和 /或 D2D资源分配信息。
步骤 406: 第一用户设备和 /或第二用户设备使用所述 D2D资源配置信 息和 /或 D2D资源分配信息对应的资源进行 D2D传输, 所述 D2D传输是 D2D发现或是 D2D广播 /组播 /单播通信。
在一实施例中,所述 D2D资源配置信息包括 D2D半持续调度配置; 所 述 D2D半持续调度配置包括: D2D半持续调度空口网络临时标识、 D2D半 持续调度建立 /释放指示、 发送半持续调度配置和 /或接收半持续调度配置、 以及半持续调度配置周期。 所述 D2D资源配置信息包括: D2D发现 /广播 / 组播 /单播通信标识、 D2D组播通信组标识和 D2D通信发起设备标识。 在另一实施例中,所述 D2D资源分配信息包括: D2D通信时频域资源、 传输属性信息, 如 MCS等; 进一步的, 所述 D2D资源分配信息还可包括 D2D发现 /通信帧和 /或子帧偏移。
本发明实施例提供了一种用户设备(第一用户设备), 图 5为本发明实 施例提供的一种用户设备的结构示意图; 如图 5所示, 所述用户设备包括: 第一发送单元 501, 配置为发送资源请求消息, 所述资源请求消息为设 备到设备 D2D调度请求消息或緩冲区状态报告;
第一接收单元 502, 配置为接收 D2D资源配置信息和 /或 D2D资源分 配信息;
第一传输单元 503,配置为使用所述第一接收单元 502接收的所述 D2D 资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输,所述 D2D 传输是 D2D发现或是 D2D广播 /组播 /单播通信。
上述用户设备指支持 D2D通信功能的用户设备。
这里, 所述 D2D调度请求消息包括以下字段的任意组合:
D2D半持续 /动态调度请求 /释放指示、 D2D半持续调度周期、 比特率 / 资源大小 /緩冲区大小。
所述緩冲区状态报告包含以下字段的任意组合:
D2D緩冲区指示、 緩冲区大小、 D2D半持续 /动态调度请求指示、 D2D 半持续调度周期。
所述 D2D调度请求消息和所述緩冲区状态报告分别包括以下字段任意 组合:
D2D发现 /组播 /广播 /单播通信标识、 D2D通信组标识 /通信目标标识。 所述 D2D调度请求消息和所述緩冲区状态报告还包括以下字段任意组 合:
D2D逻辑信道标识 /D2D逻辑信道组标识、服务质量分类标识、优先级。 其中, 所述 D2D调度请求消息和所述緩冲区状态报告分别包括一个或 多个 D2D逻辑信道的緩冲区信息, 所述多个 D2D逻辑信道属于同一 D2D 逻辑信道组。
在一实施例中,所述用户设备还包括处理单元 504,配置为当所述 D2D 资源配置信息指示半持续调度时, 判断是 D2D 半持续资源建立还是 D2D 半持续资源释放, 获得第一判断结果; 当所述第一判断结果是 D2D半持续 资源建立时, 根据 D2D通信帧 /子帧偏移和 /或接收 D2D资源配置信息的子 帧位置确定 D2D半持续资源的位置;当所述第一判断结果是 D2D半持续资 源释放时, 停止在相应 D2D半持续资源的 D2D发送 /接收。
在另一实施例中, 所述第一传输单元 503, 还配置为判断所述 D2D资 源配置信息和 /或 D2D资源分配信息是 D2D发送资源还是 D2D接收资源, 获得第二判断结果;当所述第二判断结果所述 D2D资源配置信息和 /或 D2D 资源分配信息是 D2D发送资源时,使用相应资源进行 D2D发送; 当所述第 二判断结果所述 D2D资源配置信息和 /或 D2D资源分配信息是 D2D接收资 源时, 在相应资源位置进行 D2D接收。
在另一实施例中, 所述第一传输单元 503, 配置为当收到的所述 D2D 资源配置信息和 /或 D2D资源分配信息是发送半持续调度配置时,判定所述 D2D资源配置信息和 /或 D2D资源分配信息是发送资源;当收到的所述 D2D 资源配置信息和 /或 D2D资源分配信息是接收半持续调度配置时,判定所述 D2D资源配置信息和 /或 D2D资源分配信息是接收资源; 或者,
判断所述 D2D资源配置信息包含的 D2D用户设备标识与存储的用户设 备标识是否一致, 获得第三判断结果; 当所述第三判断结果为一致时, 判 定是发送资源, 当所述第三判断结果为不一致, 判定是接收资源。
在另一实施例中, 所述第一发送单元 501, 配置为发送资源请求消息之 前感知通过 D2D承载及逻辑信道发送业务的传输需求, 判断需要半持续调 度还是动态调度;
当有足够的上行空口资源时,通过 RRC信令或是 MAC CE发送资源请 求消息;
当没有足够的上行空口资源时, 通过 PUCCH发送资源请求消息。 在另一实施例中, 所述第一传输单元 503, 还配置为业务数据到达时, 建立默认的 D2D承载及对应的逻辑信道/ PDCP/ LC实体; 或,
业务数据到达时, 建立对应于不同服务质量和 /或不同通信目标的 D2D 承载及对应的逻辑信道 /PDCP/ LC实体。
在本实施例中, 所述第一用户设备中的处理单元 504, 在实际应用中可 由所述用户设备中的中央处理器( CPU, Central Processing Unit )、 或数字 信号处理器 (DSP, Digital Signal Processor ), 或可编程门阵列 ( FPGA, Field-Programmable Gate Array )实现; 所述用户设备中的第一发送单元 501 在实际应用中, 可由所述用户设备中的发射机或发射天线实现; 所述用户 设备中的第一接收单元 502,在实际应用中可由所述用户设备中的接收器或 接收天线实现; 所述用户设备中的第一传输单元 503, 在实际应用中可由所 述用户设备中的 CPU、 或 DSP、 或 FPGA结合收发机实现。
本领域技术人员应当理解, 本发明实施例的第一用户设备中各处理单 元的功能, 可参照前述资源分配方法的相关描述而理解, 本发明实施例的 第一用户设备中各处理单元, 可通过实现本发明实施例所述的功能的模拟 电路而实现, 也可以通过执行本发明实施例所述的功能的软件在智能终端 上的运行而实现。
本发明实施例还提供了一种节点, 图 6 为本发明实施例提供的一种节 点的结构示意图; 如图 6所示, 所述节点包括:
第二接收单元 601, 配置为接收资源请求消息, 所述资源请求消息为 D2D调度请求消息或緩冲区状态报告;
分配单元 602, 配置为根据所述第二接收单元 601接收的所述 D2D调 度请求消息或緩冲区状态报告分配资源;
第二发送单元 603,配置为发送所述分配单元 602分配的所述资源对应 的 D2D资源配置信息和 /或 D2D资源分配信息。
上述节点可以为基站或执行中央控制功能的用户设备。 所述节点也可 以称为中央节点。
在一实施例中, 所述第二发送单元 603, 配置为通过广播和 /或专有信 令发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息。
本实施例中,所述 D2D资源配置信息包括 D2D半持续调度配置; 所述 D2D半持续调度配置包括: D2D半持续调度空口网络临时标识、 D2D半持 续调度建立 /释放指示、 发送半持续调度配置和 /或接收半持续调度配置、 以 及半持续调度配置周期。
另一方面, 所述 D2D资源配置信息包括: D2D发现 /广播 /组播 /单播通 信标识、 D2D组播目标通信组标识以及 D2D通信发起设备标识。
另一方面, 所述 D2D资源分配信息包括: D2D通信时频域资源和传输 属性信息。
另一方面, 所述 D2D资源分配信息还包括: D2D发现 /通信帧和 /或子 帧偏移。
在本实施例中, 所述节点中的分配单元 602, 在实际应用中可由所述节 点中的 CPU、 或 DSP、 或 FPGA实现; 所述节点中的第二发送单元 603在 实际应用中, 可由所述节点中的发射机或发射天线实现; 所述节点中的第 二接收单元 601, 在实际应用中可由所述节点中的接收器或接收天线实现。
本领域技术人员应当理解, 本发明实施例的节点中各处理单元的功能, 可参照前述资源分配方法的相关描述而理解, 本发明实施例的节点中各处 理单元, 可通过实现本发明实施例所述的功能的模拟电路而实现, 也可以 通过执行本发明实施例所述的功能的软件在智能终端上的运行而实现。
本发明实施例还提供了另一种用户设备, 所述用户设备可以是第二用 户设备和 /或第一用户设备; 图 7为本发明实施例提供的另一种用户设备的 结构示意图; 如图 7所示, 所述用户设备包括: 第三接收单元 701, 配置为接收 D2D资源配置信息和 /或 D2D资源分 配信息;
第二传输单元 702,配置为使用所述第三接收单元 701接收的所述 D2D 资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输。
另一方面, 所述第三接收单元 701, 配置为接收节点广播或通过专有信 令发送的 D2D资源池信息; 和 /或,
在附着到网络或进行跟踪区域更新时接收移动管理实体 MME发送的 D2D资源池信息或从 D2D服务器 /近距离业务服务器获取 D2D资源池信息; 其中, 所述 D2D资源池对应于商业应用和 /或公共安全的资源池; 所述商业应用及公共安全的资源池分为有覆盖以及无覆盖场景对应的 资源池。
优选地, 所述第三接收单元 701, 还配置为接收所述 D2D数据后, 建 立默认的 D2D承载及对应的逻辑信道 /PDCP/ LC实体; 或,
接收所述 D2D数据后,建立对应于不同服务质量和 /或不同目标通信对 象的 D2D承载和 /或逻辑信道 /PDCP/ LC实体。
具体的, 所述第三接收单元 701, 配置为根据系统预配置建立与不同服 务质量分类标识——对应的 D2D承载及逻辑信道/ PDCP/RLC实体; 或, 根据系统预配置建立对应于一个或多个不同服务质量分类标识的 D2D 承载及逻辑信道 /PDCP/RLC实体; 或,
与通信发起设备协商建立对应于不同服务质量要求的 D2D承载及对应 的逻辑信道/ PDCP/RLC实体。
另一方面, 所述第三接收单元 701, 配置为当接收 D2D广播通信时, 根据接收到的 D2D数据包含的通信发起设备标识以及逻辑信道标识信息建 立对应于所述 D2D广播通信发起设备及所述逻辑信道标识的 D2D承载及对 应的逻辑信道 /PDCP/RLC实体; 或,
当接收 D2D组播通信时, 根据接收到的 D2D数据包含的 D2D目标通 信对象标识, 通信发起设备标识以及逻辑信道标识信息建立对应于所述通 信发起设备及所述目标通信对象标识及所述逻辑信道标识的 D2D承载及对 应的逻辑信道 /PDCP/ LC实体。
在本实施例中, 所述第二用户设备中的第三接收单元 701, 在实际应用 中可由所述用户设备中的接收器或接收天线实现; 所述第二用户设备中的 第二传输单元 702,在实际应用中可由所述第二用户设备中的收发机或收发 天线实现。
本领域技术人员应当理解, 本发明实施例的第二用户设备中各处理单 元的功能, 可参照前述资源分配方法的相关描述而理解, 本发明实施例的 第二用户设备中各处理单元, 可通过实现本发明实施例所述的功能的模拟 电路而实现, 也可以通过执行本发明实施例所述的功能的软件在智能终端 上的运行而实现。
本发明实施例还提供了一种资源分配系统, 图 8 为本发明实施例提供 的一种资源分配系统的结构示意图; 如图 8所示, 所述系统包括: 第一用 户设备 801、 节点 802以及第二用户设备 803; 其中,
所述第一用户设备 801, 配置为向所述节点 802发送资源请求消息, 所 述资源请求消息为设备到设备 D2D调度请求消息或緩冲区状态报告;
所述节点 802,配置为所述第一用户设备 801发送的所述资源请求消息; 根据所述资源请求消息分配资源; 向所述第二用户设备 803发送所述资源 对应的 D2D资源配置信息和 /或 D2D资源分配信息;
所述第二用户设备 803, 配置为接收所述节点 802发送的所述 D2D资 源配置信息和 /或 D2D 资源分配信息; 使用所述 D2D 资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输。
下面结合各实施例对本发明进行详细的介绍。
实施例一至实施例五给出 UE使用新设计的 D2D 调度请求消息请求 D2D通信资源进行 D2D通信以及 D2D通信资源释放方法。 实施例一
在商业应用场景, Mary和 John持有具备 D2D通信功能的 UE1和 UE2。 UE1和 UE2彼此在 D2D通信范围内。
UE1希望发起与 UE2的 D2D通信, 但是 UE1并没有足够的上行空口 资源进行 RRC消息或是用户面数据的发送。图 9 为本发明实施例一提供的 一种资源分配方法的流程示意图; 如图 9所示, 所述方法包括:
步骤 901: UE1通过 PUCCH发送 D2D调度请求消息给 eNB。
这里, 所述 D2D调度请求消息中可包含 D2D指示。 此外, 所述 D2D 调度请求消息还可包含 D2D半持续调度指示等。
步骤 902: eNB接收到 D2D调度请求消息后, 根据调度请求消息的指 示分配 D2D空口资源。
步骤 903: eNB完成资源分配后, 向 UE1发送 RRC连接重配消息。 这里,所述 RRC连接重配消息包括 D2D发送半持续配置信息,如 D2D 半持续调度空口网络临时标识、 D2D半持续调度建立指示、 发送半持续调 度配置或半持续调度配置周期。
步骤 904: eNB向 UE2发送 RRC连接重配消息。
这里,所述 RRC连接重配消息包括 D2D接收半持续配置信息,如 D2D 半持续调度空口网络临时标识、 D2D半持续调度建立指示或接收半持续调 度配置周期等。
步骤 905: eNB向 UE1和 UE2发送 D2D资源分配信息。
这里, 所述资源分配信息包括: D2D 资源的位置、 资源的大小和 UE 传输时使用的 MCS方式等信息。 所述 D2D资源分配信息可通过物理层信 令或是 RRC信令承载。
步骤 906: UE1和 UE2接收到 D2D资源配置信息和 D2D资源分配信 息后, 在所分配的 D2D半持续资源上进行 D2D数据广播发送和接收。
实施例二 在公共安全场景, Officer A、 B、 C、 D使用具备 D2D功能的公共安全 UE1、 UE2、 UE3及 UE4。 Officer A、 B、 C、 D都订阅了公共安全服务。 在 Officer A、 B、 C、 D到达救援地点之后, 他们的 UE都不在网络覆盖范 围内, 但是 UE1、 UE2、 UE3、 UE4彼此在 D2D通信范围内。 UE4此时充 当了中央控制节点, UE1、 UE2和 UE3都接入到 UE4, 由 UE4执行资源分 配。
在救援地点, Officer A希望发起广播通话, 告知附近其他 Officer相关 信息。 图 10为本发明实施例二提供的一种资源分配方法的流程示意图; 如 图 10所示, 所述方法包括:
步骤 1001: Officer A的 UE1发送 D2D调度请求消息。
这里,所述 D2D调度请求消息中可包括 D2D半持续调度指示和半持续 调度间隔等。 此外, 所述 D2D调度请求消息还可选的包括半持续调度的数 据比特率和通信类型指示等。 这里, 所述半持续调度的数据比特率可用单 位时间半持续调度的字节数或资源块大小来代替。 而所述通信类型指示用 于指示 UE1希望发起的通信是广播、 组播还是单播; 相应的, 中央控制节 点收到所述 D2D调度请求消息后可作为分配资源以及是否需要将资源分配 信息通过专有信令还是广播发送给相关 UE的参考依据。
步骤 1002: 作为中央控制节点的 UE4接收到 D2D调度请求消息后, 根据调度请求消息的指示分配空口资源。
步骤 1003: 中央控制节点完成资源分配后, 向 UE1发送 RRC连接重 配消息。
这里,所述 RRC连接重配消息包括 D2D发送半持续配置信息,如 D2D 半持续调度空口网络临时标识、 D2D半持续调度建立指示、 发送半持续调 度配置或半持续调度配置周期; 可选的, 所述 D2D 资源配置信息可包括 D2D广播通信标识。
步骤 1004; 中央控制节点向 UE1发送 D2D资源分配信息。 这里, 所述 D2D资源分配信息包括 D2D资源的位置、 D2D资源的大 小和 UE传输时使用的 MCS方式等信息。所述 D2D资源分配信息可通过物 理层信令或是 RRC信令承载。 如果是通过物理层信令承载, 则 UE1根据 D2D发送半持续调度配置中包含的半持续调度配置周期以及接收到 D2D资 源分配信息的子帧作为起始帧计算资源分配的子帧位置。 如果是通过 RRC 信令承载, 则 RRC信令还需要包含起始帧及子帧的位置信息。
步骤 1005: UE1接收到 D2D资源配置信息和 D2D资源分配信息后, 在所分配的 D2D半持续资源上进行 D2D数据广播发送。
对于 UE1的相邻节点 UE2和 UE3, 所述 UE2和 UE3可根据系统预配 置的 D2D通信资源池信息或是通过中央控制节点发送的 D2D通信资源池系 统信息对 D2D资源池进行监听, 当 UE1开始 D2D广播数据发送后, UE2 和 UE3就可以接收到 D2D数据。
实施例三
在公共安全场景, Officer A、 B、 C、 D使用具备 D2D功能的公共安全 UE1、 UE2、 UE3及 UE4。 Officer A、 B、 C、 D都订阅了公共安全服务, 并且 UE1、 UE2、 UE3都配置属于 D2D通信组 X。 在 Officer A、 B、 C、 D 到达救援地点之后, 他们的 UE都不在网络覆盖范围内, 但是 UE1、 UE2, UE3、 UE4彼此在 D2D通信范围内。 UE4此时充当了中央控制节点, UE1、 UE2和 UE3都接入到 UE4, 由 UE4执行资源分配。
在救援地点, Officer A希望发起组播通话, 告知附近对应于 D2D通信 组 X的其他 Officer相关信息。 图 11为本发明实施例三提供的一种资源分 配方法的流程示意图; 如图 11所示, 所述方法包括:
步骤 1101 : Officer A的 UE1发送 D2D调度请求消息。
这里,所述 D2D调度请求消息中可包括 D2D半持续调度指示、承载该 组播通信的逻辑信道标识和 /或对应的服务质量分类标识和所述逻辑信道的 緩冲区大小等。此外。所述 D2D调度请求消息还可选的包括 D2D通信组 X 对应的组标识 GID。
步骤 1102: 作为中央控制节点的 UE4接收到 D2D调度请求消息后, 进行接纳控制, 并根据调度请求消息的指示分配空口资源。
步骤 1103: 中央控制节点完成资源分配后, 广播发送 D2D调度通知消 息。
这里, 所述 D2D调度通知消息包括 D2D资源配置信息, 所述 D2D资 源配置信息包括 D2D发送半持续配置信息, 如 D2D半持续调度建立指示、 发送半持续调度配置或半持续调度配置周期; 此外, 所述 D2D资源配置信 息还可包括 D2D组播通信组标识 GID和 /或 D2D发送用户设备标识等。 所 述 D2D调度通知消息还包括 D2D资源分配信息, 如 D2D通信时频域资源 以及传输属性信息 MCS等; 进一步的, 所述 D2D调度通知消息还可包括 D2D通信帧 /子帧偏移信息。
步骤 1104: UE1接收到 D2D资源配置信息和 D2D资源分配信息后, 判断 D2D发送用户设备标识与自己一致,则可在所分配的 D2D半持续资源 上进行 D2D数据广播发送。
对于 UE1的相邻节点 UE2和 UE3, 它们可根据接收到的 D2D调度通 知中包含的半持续资源配置及分配信息,在相应的资源上进行监听,当 UE1 开始 D2D广播数据发送后, UE2和 UE3就可以接收到 D2D数据。
实施例四
在商业应用场景, Mary和 John持有具备 D2D通信功能的 UE1和 UE2。 UE1和 UE2彼此在 D2D通信范围内。 UE1希望发起与 UE2的 D2D通信, 图 12 为本发明实施例四提供的一种资源分配方法的流程示意图; 如图 12 所示, 包括:
步骤 1201: UE1发送 D2D调度请求消息给 eNB。
这里,所述 D2D调度请求消息中可包括 D2D半持续调度指示和半持续 调度间隔等。 此外所述调度请求消息还可选的包括半持续调度的数据比特 率、通信类型指示以及 UE的标识等。这里所述半持续调度的数据比特率可 用半持续调度的字节数或资源块大小来代替。 而所述通信类型指示用于指 示 UE1希望发起的通信是广播、 组播还是单播; 相应的, 所述 eNB收到所 述 D2D调度请求消息后可作为分配资源以及是否需要将资源分配信息通过 专有信令还是广播发送给相关 UE的参考依据。
步骤 1202: eNB接收到 D2D调度请求消息后, 进行接纳控制, 并根据 调度请求消息的指示分配空口资源。
步骤 1203: eNB完成资源分配后, 向 UE1发送 RRC连接重配消息。 这里,所述 RRC连接重配消息包括 D2D发送半持续配置信息,如 D2D 半持续调度空口网络临时标识、 D2D半持续调度建立指示、 发送半持续调 度配置或半持续调度配置周期。
步骤 1204: eNB向 UE2发送 RRC连接重配消息。
这里,所述 RRC连接重配消息包括 D2D接收半持续配置信息,如 D2D 半持续调度空口网络临时标识、 D2D半持续调度建立指示或接收半持续调 度配置周期等。
步骤 1205: eNB向 UE1和 UE2发送 D2D资源分配信息。
这里, 所述送 D2D资源分配信息包括 D2D资源的位置、 D2D资源的 大小和 UE传输时使用的 MCS方式等信息。所述 D2D资源分配信息可通过 物理层信令或是 RRC信令承载。
步骤 1206: UE1和 UE2接收到 D2D资源配置信息和 D2D资源分配信 息后, 可在所分配的 D2D半持续资源上进行 D2D数据广播发送和接收。
实施例五
在商业应用场景, Mary和 John持有具备 D2D发现功能的 UE1和 UE2。 UE1和 UE2彼此在 D2D发现范围内。
UE1 希望被其他 UE发现, 并已经按照前述所描述的流程申请了半持 续资源发送 D2D发现消息。 假设 UE1希望不再被其他 UE发现, 则申请释 放半持续 D2D资源; 图 13为本发明实施例五提供的一种资源分配方法的 流程示意图; 如图 13所示, 所述方法包括:
步骤 1301 : UE1发送包含 D2D半持续调度释放指示的 D2D调度请求 消息给 eNB。
步骤 1302: eNB将相应的 D2D资源释放, 所述 D2D资源可后续分配 给其他 D2D用户设备使用。
步骤 1303: eNB发送包含 D2D半持续配置释放信息的 RRC连接重配 消息给 UE1, UE1收到该消息后, 释放半持续 D2D通信配置。
实施例六至实施例九给出 UE使用增强后的緩冲区状态报告请求 D2D 通信资源进行 D2D通信以及 D2D通信资源释放方法。
实施例六
在公共安全场景, Officer A、 B、 C、 D使用具备 D2D功能的公共安全 UE1、 UE2、 UE3及 UE4。 Officer A、 B、 C、 D都订阅了公共安全服务。 在 Officer A、 B、 C、 D到达救援地点之后, 他们的 UE都不在网络覆盖范 围内, 但是 UE1、 UE2、 UE3、 UE4彼此在 D2D通信范围内。 UE4此时充 当了中央控制节点, UE1、 UE2和 UE3都接入到 UE4, 由 UE4执行资源分 配。
在救援地点, Officer A希望发起广播通话, 告知附近其他 Officer相关 信息。 图 14为本发明实施例六提供的一种资源分配方法的流程示意图; 如 图 14所示, 包括:
步骤 1401: Officer A的 UE1发送 D2D緩冲区状态报告。
这里,所述 D2D緩冲区状态报告中可包括 D2D指示、半持续调度指示 和半持续调度间隔等。此外所述 D2D緩冲区状态报告还包括 UE1建立的对 应于 D2D通信的逻辑信道标识以及对应逻辑信道的緩冲区大小等。
步骤 1402: 作为中央控制节点的 UE4接收到 D2D緩冲区状态报告后, 并根据 D2D緩冲区状态报告的指示分配空口资源。 步骤 1403: 中央控制节点完成资源分配后, 向 UE1发送 RRC连接重 配消息。
这里,所述 RRC连接重配消息包括 D2D发送半持续配置信息,如 D2D 半持续调度空口网络临时标识、 D2D半持续调度建立指示、 发送半持续调 度配置或半持续调度配置周期。
步骤 1404: 中央控制节点向 UE1发送 D2D资源分配信息。
这里, 所述 D2D资源分配信息包括 D2D时频资源的位置、 D2D时频 资源的大小和 UE传输时使用的 MCS方式等信息。所述 D2D资源分配信息 可通过物理层信令或是 RRC信令承载。 如果是通过物理层信令承载, 则 UE1根据 D2D发送半持续调度配置中包含的半持续调度配置周期以及接收 到 D2D资源分配信息的子帧作为起始帧计算资源分配的子帧位置。 如果是 通过 RRC信令承载, 则 RRC信令还需要包含起始帧及子帧的位置信息。
步骤 1405: UE1接收到 D2D资源配置信息和 D2D资源分配信息后, 可在所分配的 D2D半持续资源上进行 D2D数据广播发送。
对于 UE1的相邻节点 UE2和 UE3, 它们可根据系统预配置的 D2D通 信资源池信息或是通过中央控制节点发送的 D2D 通信资源池系统信息对 D2D资源池进行监听, 当 UE1开始 D2D广播数据发送后, UE2和 UE3就 可以接收到 D2D数据。
实施例七
在公共安全场景, Officer A、 B、 C、 D使用具备 D2D功能的公共安全 UE1、 UE2、 UE3及 UE4。 Officer A、 B、 C、 D都订阅了公共安全服务, 并且 UE1、 UE2、 UE3都配置属于 D2D通信组 X。 在 Officer A、 B、 C、 D 到达救援地点之后, 他们的 UE都不在网络覆盖范围内, 但是 UE1、 UE2、 UE3、 UE4彼此在 D2D通信范围内。 UE4此时充当了中央控制节点, UE1、 UE2和 UE3都接入到 UE4, 由 UE4执行资源分配。
在救援地点, Officer A希望发起组播通话, 告知附近对应于 D2D通信 组 X的其他 Officer相关信息。 图 15为本发明实施例七提供的一种资源分 配方法的流程示意图; 如图 15所示, 包括:
步骤 1501 : Officer A的 UE1发送 D2D緩冲区状态报告。
这里,所述 D2D緩冲区状态报告中可包括 D2D指示、半持续调度指示、 承载该组播通信的逻辑信道标识和 /或对应的服务质量分类标识, 所述逻辑 信道的緩冲区大小等。此外所述 D2D緩冲区状态报告还可包括 D2D通信组
X对应的组标识。
步骤 1502: 作为中央控制节点的 UE4接收到 D2D緩冲区状态报告后, 根据緩冲区状态报告的指示分配空口资源。
步骤 1503: 中央控制节点完成资源分配后, 广播发送 D2D资源分配信 息。
这里,所述 D2D资源分配信息包括 D2D发送半持续配置信息,如 D2D 半持续调度建立指示和 /或发送半持续调度配置周期; 此外, 所述 D2D资源 分配信息还可包括 D2D组播通信组标识和 /或 D2D发送用户设备标识等。 所述 D2D 资源分配信息还包括 D2D 通信时频域资源以及传输属性信息 MCS等, 进一步的, 所述 D2D资源分配信息还可包括 D2D通信帧 /子帧偏 移信息。
步骤 1504: UE1接收到 D2D资源配置信息和 D2D资源分配信息后, 判断 D2D发送用户设备标识与自己一致,则可在所分配的 D2D半持续资源 上进行 D2D数据广播发送。
对于 UE1的相邻节点 UE2和 UE3, 它们可根据接收到的 D2D资源分 配信息中包含的半持续资源配置及分配信息, 在相应的资源上进行监听, 当 UE1开始 D2D广播数据发送后, UE2和 UE3就可以接收到 D2D数据。
实施例八
在商业应用场景, Mary和 John持有具备 D2D通信功能的 UE1和 UE2。 UE1和 UE2彼此在 D2D通信范围内。 UE1希望发起与 UE2的 D2D通信。 图 16 为本发明实施例八提供的一种资源分配方法的流程示意图; 如图 16 所示, 包括:
步骤 1601: UE1发送 D2D緩冲区状态报告给 eNB。
这里, 所述 D2D緩冲区状态报告中可包括 D2D指示、 承载 D2D通信 的多个逻辑信道对应的逻辑信道组标识符以及对应逻辑信道组的緩冲区大 小, 优先级等。
步骤 1602: eNB接收到 D2D緩冲区状态报告后, 根据 D2D緩冲区状 态才艮告的指示分配 D2D空口资源。
步骤 1603: eNB完成资源分配后, 发送 D2D资源分配信息。
这里, 所述 D2D资源分配信息包括 D2D资源的位置、 D2D资源的大 小和 UE传输时使用的 MCS方式等信息。所述 D2D资源分配信息可通过物 理层信令或是 RRC信令承载。
步骤 1604: UE1接收到 D2D资源分配信息后, 可在所分配的 D2D资 源上进行 D2D发送。
实施例九
在商业应用场景, Mary和 John持有具备 D2D通信功能的 UE1和 UE2。 UE1和 UE2彼此在 D2D通信范围内。
UE1希望发起与 UE2的 D2D通信,并申请了 D2D半持续资源进行 D2D 通信。 假设 UE1完成了组播通信, 希望释放半持续 D2D资源。 图 17为本 发明实施例九提供的一种资源分配方法的流程示意图;如图 17所示,包括: 步骤 1701 : UE1发送 D2D緩冲区状态报告。
这里, 緩冲区大小为 0。
步骤 1702: eNB收到 D2D緩冲区状态报告后, 将相应的 D2D资源释 放, 该资源可后续分配给其他 D2D用户设备使用。
步骤 1703: eNB发送包含 D2D半持续配置释放信息的 RRC连接重配 消息给 UE1以及 UE2, UE1和 UE2收到所述 RRC连接重配消息后, 释放 半持续 D2D通信配置。
实施例十至实施例十三给出 UE D2D承载 /逻辑信道/ LC 实体/ PDCP 实体的建立和释放方法以及 D2D资源池的获取方法。
实施例十
在公共安全场景, Officer A、 B、 C使用具备 D2D功能的公共安全 UE1、 UE2、 UE3。 Officer A、 B、 C都订阅了公共安全服务, 并且 UE1、 UE2、 UE3都配置属于 D2D通信组 X。 在 Officer A、 B、 C到达救援地点之后, 他们都在基站覆盖下,并且 UE1、 UE2、 UE3彼此在 D2D通信范围内, UE1、 UE2和 UE3都接入到 eNB。
在救援地点, Officer A希望发起组播通话, 告知附近对应于 D2D通信 组 X的其他 Officer相关信息。 图 18为本发明实施例十提供的一种资源分 配方法的流程示意图; 如图 18所示, 包括:
步骤 1801 : Officer A的 UE1根据系统预先提供的配置根据不同的 QOS 类别标识 (QCI, QoS Class Identifier )和 /或不同的目标通信对象建立相应 的 D2D承载 /逻辑信道/ LC实体 /PDCP实体。
这里, 目前通信对象可能是广播通信标识、 D2D通信组标识或是 D2D 单播通信的接收用户设备标识。在本实例中,对应于 D2D通信组 X的标识。
步骤 1802: UE1通过 eNB进行 D2D传输资源申请并获取到 D2D通信 资源。
步骤 1803: UE1根据分配的 D2D资源, 通过 D2D的承载以及相应的 逻辑信道进行数据发送。
这里, UE1组装的数据包需要包括 UE1的标识信息; 此外, 如果 D2D 承载 /逻辑信道/ LC实体/ PDCP实体根据不同的 QCI建立, 则数据包还需 要携带对应的 QCI或是对应的逻辑信道标识信息; 如果 D2D承载 /逻辑信 道/ LC实体 /PDCP实体根据不同的目标通信对象建立, 则数据包需要携带 目标通信对象标识; 如果 D2D承载 /逻辑信道/ LC实体/ PDCP实体根据不 同的 QCI以及不同的目标通信对象建立,则数据包需要同时携带对应的 QCI 或是逻辑信道标识信息以及目标通信对象标识信息。
步骤 1804、 对于 UE2和 UE3, 收到 UE1发送的 D2D组播数据包后, 根据所述 D2D组播数据包包括的源 UE标识、 目标通信对象标识以及逻辑 信道标识信息判断是否已经建立了相应的 D2D承载 /逻辑信道/ LC 实体 /PDCP 实体, 如果已经建立, 则交给该承载对应的无线链路控制 (RLC, Radio Link Control )以及分组数据汇聚协议( PDCP, Packet Data Convergence Protocol ) 实体进行后续解析, 如果没有建立, 则先建立相应的 D2D承载 / 逻辑信道/ LC实体 /PDCP实体,之后再交给该承载对应的 RLC以及 PDCP 实体进行后续解析。
实施例十一
在商业应用场景, Mary和 John持有具备 D2D通信功能的 UE1和 UE2。 UE1和 UE2彼此在 D2D通信范围内。 UE1希望发起与 UE2的 D2D通信。 图 19为本发明实施例十一提供的一种资源分配方法的流程示意图;如图 19 所示, 所述方法包括:
步骤 1901 : UE1与 UE2通过协商建立 D2D承载 /逻辑信道/ LC实体 /PDCP实体。
步骤 1902: UE1发起申请 D2D资源。
步骤 1903: 获得 D2D资源后, 使用该资源通过相应的 D2D承载 /逻辑 信道/ LC实体/ PDCP实体进行 D2D通信。
实施例十二
UE根据实施例十或实施例十一的方法创建了 D2D承载 /逻辑信道/ LC 实体/ PDCP实体后, UE使用该 D2D承载 /逻辑信道/ LC实体/ PDCP实体进 行 D2D数据包的发送和 /或接收。 针对每个 D2D承载 /逻辑信道/ LC实体 /PDCP实体, UE设置了不活动定时器, 每次数据包发送或接收都会对该定 时器进行重置。 如果很长一段时间 UE在该 D2D承载 /逻辑信道/ LC实体 /PDCP实体上没有 D2D数据包收发,使得该 D2D承载 /逻辑信道/ LC实体 /PDCP实体对应的不活动定时器超时,则 UE释放该承载。对应于同一个承 载的逻辑信道 / LC 实体/ PDCP 实体可以复用同一个不活动定时器。 图 20 为本发明实施例十二提供的一种资源分配方法的流程示意图;如图 20所示, 包括:
步骤 2001: UE创建 D2D承载 /逻辑信道/ LC实体 /PDCP实体。
这里, 所述 UE可根据实施例十或实施例十一中所述的方法创建 D2D 承载 /逻辑信道/ LC实体 /PDCP实体, 这里不再赘述。
步骤 2002: UE使用所述 D2D承载 /逻辑信道/ LC实体 /PDCP实体进 行 D2D数据包的发送和或接收, 每次数据包发送或接收对不活动定时器进 行重置。
这里,针对每个 D2D承载 /逻辑信道/ LC实体/ PDCP实体, UE设置了 一个不活动定时器。
步骤 2003: 判断 D2D承载 /逻辑信道/ LC实体/ PDCP实体对应的不活 动定时器是否超时, 当判断的结果为是时, 执行步骤 2004; 当判断的结果 为否时, 重新执行步骤 2002。
如果预设的时间内 UE在该 D2D承载 /逻辑信道/ LC实体/ PDCP实体 上没有 D2D数据包收发,则 D2D承载 /逻辑信道/ LC实体 /PDCP实体对应 的不活动定时器超时。
步骤 2004: UE释放所述不活动定时器对应的承载 /逻辑信道/ LC实体 /PDCP实体。
实施例十三
假设 UE1 同时具备在商业应用场景以及公共安全场景进行 D2D发现 / 通信的能力。 图 21为本发明实施例十三提供的一种资源分配方法的流程示 意图; 如图 21所示, 包括:
步骤 2101 : 当 UE1处于有网络覆盖时, UE1可接收基站广播的 D2D 资源池信息。
这里, 所述基站广播的 D2D资源池信息主要应用于商业应用场景。 步骤 2102: UE在附着到网络或是进行跟踪区域更新时可以从 MME或 D2D服务器或 ProSe server获取到 D2D资源池信息。
这里的资源池可应用于公共安全场景。 D2D 资源池不仅包括有覆盖场 景的资源, 还包括无覆盖场景的资源信息。 此外 D2D 资源池可以是针对 D2D发现或是 D2D通信。
可选的, 步骤 2103: 基站有可能发送 D2D调度通知消息, D2D调度通 知消息中包含从 D2D资源池中已经分配给服务小区内 UE使用的 D2D资 源。
步骤 2104: UE1可根据 D2D资源池信息以及可选的 D2D调度通知消 息, 对 D2D发现 /通信数据进行监听及接收。
优选地, 如果 UE1如果使能了公共安全功能, 则 UE1需要同时监听所 有资源池。 如果 UE1处于无覆盖状态, 则 UE1可仅监听对应于公共安全的 无覆盖场景的资源。
综上所述, 通过本发明实施例提出的方法、 系统、 用户设备及计算机 存储介质, 可以根据需要通过简单的流程快速灵活的请求 D2D通信资源, 确保 D2D资源的分配及后续 D2D通信的顺利进行。此外本发明提出的方法 也可应用于商业应用场景通信。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产品。 因此, 本发明可釆用硬件实施例、 软件实施例、 或结 合软件和硬件方面的实施例的形式。 而且, 本发明可釆用在一个或多个其 中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器和光学存储器等 )上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序 产品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程 图和 /或方框图中的每一流程和 /或方框、以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器, 使得 在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功 能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理 设备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存 储器中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个 流程或多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备 上, 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机 实现的处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现 在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功 能的步骤。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。 工业实用性 本发明实施例通过发送资源请求消息, 所述资源请求消息为设备到设 备 D2D调度请求消息或緩冲区状态报告;接收 D2D资源配置信息和 /或 D2D 资源分配信息; 使用所述 D2D资源配置信息和 /或 D2D资源分配信息对应 的资源进行 D2D传输。 由此, 用户设备可以根据需要通过简单的流程快速 灵活的请求 D2D通信资源, 确保 D2D资源的分配及后续 D2D通信的顺利 进行。

Claims

权利要求书
1、 一种资源分配方法, 所述方法包括:
发送资源请求消息, 所述资源请求消息为设备到设备 D2D调度请求消 息或緩冲区状态报告;
接收 D2D资源配置信息和 /或 D2D资源分配信息;
使用所述 D2D资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输, 所述 D2D传输是 D2D发现或是 D2D广播 /组播 /单播通信。
2、 根据权利要求 1所述的方法, 其中, 所述 D2D调度请求消息包括 以下字段的任意组合:
D2D半持续 /动态调度请求 /释放指示、 D2D半持续调度周期、 比特率 / 资源大小 /緩冲区大小。
3、 根据权利要求 1所述的方法, 其中, 所述緩冲区状态报告包括以下 字段的任意组合:
D2D緩冲区指示、 緩冲区大小、 D2D半持续 /动态调度请求指示、 D2D 半持续调度周期。
4、 根据权利要求 1至 3任一项所述的方法, 其中, 所述 D2D调度请 求消息和所述緩冲区状态报告还包括以下字段任意组合:
D2D发现 /组播 /广播 /单播通信标识、 D2D通信组标识 /通信目标标识。
5、 根据权利要求 1至 3任一项所述的方法, 其中, 所述 D2D调度请 求消息和所述緩冲区状态报告还包括以下字段任意组合:
D2D逻辑信道标识 /D2D逻辑信道组标识、服务质量分类标识、优先级。
6、 根据权利要求 1所述的方法, 其中, 所述 D2D调度请求消息和所 述緩冲区状态报告分别包括一个或多个 D2D逻辑信道的緩冲区信息, 所述 多个 D2D逻辑信道属于同一 D2D逻辑信道组。
7、 根据权利要求 1所述的方法, 其中, 所述接收 D2D资源配置信息 和 /或 D2D资源分配信息之后, 所述方法还包括:
当所述 D2D资源配置信息指示半持续调度时,判断是 D2D半持续资源 建立还是 D2D半持续资源释放, 获得第一判断结果; 当所述第一判断结果 是 D2D半持续资源建立时,根据 D2D资源分配信息中的 D2D发现 /通信帧 和 /或子帧偏移和 /或接收 D2D资源配置信息的子帧位置确定 D2D半持续资 源的位置; 当所述第一判断结果是 D2D 半持续资源释放时, 停止在相应 D2D半持续资源的 D2D发送 /接收。
8、 根据权利要求 1所述的方法, 其中, 所述接收 D2D资源配置信息 和 /或 D2D资源分配信息之后, 所述方法还包括:
判断所述 D2D资源配置信息和 /或 D2D资源分配信息是 D2D发送资源 还是 D2D接收资源, 获得第二判断结果; 当所述第二判断结果所述 D2D 资源配置信息和 /或 D2D资源分配信息是 D2D发送资源时, 使用相应资源 进行 D2D发送; 当所述第二判断结果所述 D2D资源配置信息和 /或 D2D资 源分配信息是 D2D接收资源时, 在相应资源位置进行 D2D接收。
9、 根据权利要求 8所述的方法, 其中, 所述判断所述 D2D资源配置 信息和 /或 D2D资源分配信息是 D2D发送资源还是 D2D接收资源, 包括: 当收到的所述 D2D资源配置信息和 /或 D2D资源分配信息是发送半持 续调度配置时, 判定所述 D2D资源配置信息和 /或 D2D资源分配信息是发 送资源; 当收到的所述 D2D资源配置信息和 /或 D2D资源分配信息是接收 半持续调度配置时, 判定所述 D2D资源配置信息和 /或 D2D资源分配信息 是接收资源; 或者,
判断所述 D2D资源配置信息包含的 D2D用户设备标识与存储的用户设 备标识是否一致, 获得第三判断结果; 当所述第三判断结果为一致时, 判 定是发送资源, 当所述第三判断结果为不一致时, 判定是接收资源。
10、 根据权利要求 1所述的方法, 其中, 所述发送资源请求消息之前, 所述方法还包括: 感知业务传输需求, 判断需要半持续调度还是动态调度; 通过物理上行链路控制信道 PUCCH和 /或无线资源控制协议 RRC信令 或是 MAC CE发送资源请求消息。
11、 根据权利要求 1所述的方法, 其中, 所述发送资源请求消息之前, 所述方法还包括:
业务数据到达时, 建立默认的 D2D承载及对应的逻辑信道/ PDCP/ LC 实体; 或,
业务数据到达时, 建立对应于不同服务质量和 /或不同通信目标的 D2D 承载及对应的逻辑信道 /PDCP/ LC实体。
12、 根据权利要求 11所述的方法, 其中, 所述建立对应于不同服务质 量的 D2D承载和 /或逻辑信道 /PDCP/RLC实体, 包括:
根据系统预配置建立与不同服务质量分类标识——对应的 D2D承载及 逻辑信道/ PDCP/RLC实体; 或,
根据系统预配置建立对应于一个或多个不同服务质量分类标识的 D2D 承载及逻辑信道 /PDCP/RLC实体; 或,
与通信目标设备协商建立对应于不同服务质量的 D2D承载及对应的逻 辑信道 /PDCP/RLC实体。
13、 根据权利要求 11所述的方法, 其中, 所述建立对应于不同目标通 信对象的 D2D承载和 /或逻辑信道/ PDCP/RLC实体, 包括:
当发起 D2D发现时, 根据系统预配置建立对应于 D2D发现的 D2D承 载及对应的逻辑信道 /PDCP/RLC实体; 或,
当发起 D2D广播通信时,根据系统预配置建立对应于 D2D广播通信的 D2D承载及对应的逻辑信道 /PDCP/RLC实体; 或,
当发起 D2D组播通信时,根据对应的 D2D通信组及系统预配置建立对 应于所述 D2D通信组的 D2D承载及对应的逻辑信道 /PDCP/RLC实体; 或, 当发起 D2D单播通信时, 根据系统预配置或与通信目标设备协商建立 对应于 D2D单播通信目标设备的 D2D承载及对应的逻辑信道 /PDCP/ LC 实体。
14、 根据权利要求 11 所述的方法, 其中, 所述 D2D承载及对应的逻 辑信道 /PDCP/ LC实体后建立后, 所述方法还包括:
设置 D2D承载 /逻辑信道/ PDCP/ LC 实体不活动定时器, 每次数据包 发送或接收时, 对所述定时器进行重置;
当所述 D2D承载 /逻辑信道 /PDCP/RLC 实体对应的不活动定时器超时 时, 释放所述 D2D承载 /逻辑信道/ PDCP/RLC实体。
15、 一种资源分配方法, 所述方法包括:
接收资源请求消息, 所述资源请求消息为设备到设备 D2D调度请求消 息或緩冲区状态报告;
根据所述资源请求消息分配资源;
发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息。
16、 根据权利要求 15 所述的方法, 其中, 所述发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息, 为:
通过广播和 /或专有信令发送所述资源对应的 D2D 资源配置信息和 /或 D2D资源分配信息。
17、 根据权利要求 15所述的方法, 其中, 所述 D2D资源配置信息包 括 D2D半持续调度配置; 所述 D2D半持续调度配置包括: D2D半持续调 度空口网络临时标识、 D2D半持续调度建立 /释放指示、 发送半持续调度配 置和 /或接收半持续调度配置、 以及半持续调度配置周期。
18、 根据权利要求 15所述的方法, 其中, 所述 D2D资源配置信息包 括: D2D发现 /广播 /组播 /单播通信标识、 D2D组播目标通信组标识以及 D2D 通信发起设备标识。
19、 根据权利要求 15所述的方法, 其中, 所述 D2D资源分配信息包 括: D2D通信时频域资源和传输属性信息。
20、 根据权利要求 19所述的方法, 其中, 所述 D2D资源分配信息还 包括: D2D发现 /通信帧和 /或子帧偏移。
21、 一种资源分配方法, 所述方法包括:
接收 D2D资源池信息; 和 /或,
接收 D2D资源配置信息和 /或 D2D资源分配信息;
使用所述 D2D资源池信息、 所述 D2D资源配置信息、 所述 D2D资源 分配信息中的至少之一的信息对应的资源进行 D2D接收。
22、 根据权利要求 21所述的方法, 其中, 所述接收 D2D资源池信息 包括:
接收节点广播或通过专有信令发送的 D2D资源池信息; 和 /或, 在附着到网络或进行跟踪区域更新时接收移动管理实体 MME发送的
D2D资源池信息或从 D2D服务器 /近距离业务服务器获取 D2D资源池信息; 其中, 所述 D2D资源池对应于商业应用和 /或公共安全的资源池; 所述商业应用及公共安全的资源池分为有覆盖以及无覆盖场景对应的 资源池。
23、 根据权利要求 21所述的方法, 其中, 所述方法还包括:
接收所述 D2D 数据后, 建立默认的 D2D 承载及对应的逻辑信道 /PDCP/ LC实体; 或,
接收所述 D2D数据后,建立对应于不同服务质量和 /或不同目标通信对 象的 D2D承载和 /或逻辑信道 /PDCP/ LC实体。
24、 根据权利要求 23所述的方法, 其中, 所述建立对应于不同服务质 量的 D2D承载和 /或逻辑信道 /PDCP/RLC实体, 包括:
根据系统预配置建立与不同服务质量分类标识——对应的 D2D承载及 逻辑信道/ PDCP/RLC实体; 或,
根据系统预配置建立对应于一个或多个不同服务质量分类标识的 D2D 承载及逻辑信道 /PDCP/RLC实体; 或, 与通信发起设备协商建立对应于不同服务质量要求的 D2D承载及对应 的逻辑信道/ PDCP/ LC实体。
25、 根据权利要求 23所述的方法, 其中, 所述建立对应于不同目标通 信对象的 D2D承载和 /或逻辑信道/ PDCP/ LC实体, 包括:
当接收 D2D广播通信时,根据接收到的 D2D数据包含的通信发起设备 标识以及逻辑信道标识信息建立对应于所述 D2D广播通信发起设备及所述 逻辑信道标识的 D2D承载及对应的逻辑信道/ PDCP/RLC实体; 或,
当接收 D2D组播通信时, 根据接收到的 D2D数据包含的 D2D目标通 信对象标识, 通信发起设备标识以及逻辑信道标识信息建立对应于所述通 信发起设备及所述目标通信对象标识及所述逻辑信道标识的 D2D承载及对 应的逻辑信道 /PDCP/RLC实体。
26、 根据权利要求 23所述的方法, 其中, 所述 D2D承载及对应的逻 辑信道 /PDCP/RLC实体后建立后, 所述方法还包括:
设置 D2D承载 /逻辑信道/ PDCP/RLC 实体不活动定时器, 每次数据包 发送或接收时, 对所述定时器进行重置;
当所述 D2D承载 /逻辑信道 /PDCP/RLC 实体对应的不活动定时器超时 时, 释放所述 D2D承载 /逻辑信道/ PDCP/RLC实体。
27、 一种资源分配方法, 所述方法包括:
第一用户设备发送资源请求消息, 所述资源请求消息为设备到设备 D2D调度请求消息或緩冲区状态报告;
节点接收所述第一用户设备发送的所述资源请求消息;
节点根据所述资源请求消息分配资源;
节点发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息; 第一用户设备和 /或第二用户设备接收所述 D2D 资源配置信息和 /或 D2D资源分配信息;
第一用户设备和 /或第二用户设备使用所述 D2D 资源配置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输, 所述 D2D传输是 D2D发现 或是 D2D广播 /组播 /单播通信。
28、 一种用户设备, 所述用户设备包括:
第一发送单元, 配置为发送资源请求消息, 所述资源请求消息为设备 到设备 D2D调度请求消息或緩冲区状态报告;
第一接收单元, 配置为接收 D2D资源配置信息和 /或 D2D资源分配信 息;
第一传输单元, 配置为使用所述第一接收单元接收的所述 D2D资源配 置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输, 所述 D2D传输 是 D2D发现或是 D2D广播 /组播 /单播通信。
29、 根据权利要求 28所述的用户设备, 其中, 所述 D2D调度请求消 息包括以下字段的任意组合:
D2D半持续 /动态调度请求 /释放指示、 D2D半持续调度周期、 比特率 / 资源大小 /緩冲区大小。
30、 根据权利要求 28所述的用户设备, 其中, 所述緩冲区状态报告包 含以下字段的任意组合:
D2D緩冲区指示、 緩冲区大小、 D2D半持续 /动态调度请求指示、 D2D 半持续调度周期。
31、 根据权利要求 28至 30任一项所述的用户设备, 其中, 所述 D2D 调度请求消息和所述緩冲区状态报告分别包括以下字段任意组合:
D2D发现 /组播 /广播 /单播通信标识、 D2D通信组标识 /通信目标标识。
32、 根据权利要求 28至 30任一项所述的用户设备, 其中, 所述 D2D 调度请求消息和所述緩冲区状态报告还包括以下字段任意组合:
D2D逻辑信道标识 /D2D逻辑信道组标识、服务质量分类标识、优先级。
33、 根据权利要求 28所述的用户设备, 其中, 所述 D2D调度请求消 息和所述緩冲区状态报告分别包括一个或多个 D2D 逻辑信道的緩冲区信 息, 所述多个 D2D逻辑信道属于同一 D2D逻辑信道组。
34、 根据权利要求 28所述的用户设备, 其中, 所述用户设备还包括处 理单元, 配置为当所述 D2D资源配置信息指示半持续调度时, 判断是 D2D 半持续资源建立还是 D2D半持续资源释放, 获得第一判断结果; 当所述第 一判断结果是 D2D半持续资源建立时, 根据 D2D资源分配信息中的 D2D 发现 /通信帧和 /或子帧偏移和 /或接收 D2D 资源配置信息的子帧位置确定 D2D半持续资源的位置; 当所述第一判断结果是 D2D半持续资源释放时, 停止在相应 D2D半持续资源的 D2D发送 /接收。
35、 根据权利要求 28所述的用户设备, 其中, 所述第一发送单元, 还 配置为发送资源请求消息之前感知通过 D2D承载和 /或逻辑信道发送业务 的传输需求, 判断需要半持续调度还是动态调度;
通过 PUCCH和 /或 RRC信令或是 MAC CE发送资源请求消息。
36、 根据权利要求 28所述的用户设备, 其中, 所述第一传输单元, 还 配置为业务数据到达时, 建立默认的 D2D 承载及对应的逻辑信道 /PDCP/ LC实体; 或,
业务数据到达时, 建立对应于不同服务质量和 /或不同通信目标的 D2D 承载及对应的逻辑信道 /PDCP/ LC实体。
37、 一种节点, 所述节点包括:
第二接收单元, 配置为接收资源请求消息, 所述资源请求消息为设备 到设备 D2D调度请求消息或緩冲区状态报告;
分配单元, 配置为根据所述第二接收单元接收的所述资源请求消息分 配资源;
第二发送单元, 配置为发送所述分配单元分配的所述资源对应的 D2D 资源配置信息和 /或 D2D资源分配信息。
38、 根据权利要求 37所述的节点, 其中, 所述第二发送单元, 配置为 通过广播和 /或专有信令发送所述资源对应的 D2D资源配置信息和 /或 D2D 资源分配信息。
39、 一种用户设备, 所述用户设备包括:
第三接收单元, 配置为接收 D2D资源配置信息和 /或 D2D资源分配信 息;
第二传输单元, 配置为使用所述第三接收单元接收的所述 D2D资源配 置信息和 /或 D2D资源分配信息对应的资源进行 D2D传输。
40、 一种资源分配系统, 所述系统包括: 第一用户设备、 节点和第二 用户设备; 其中,
所述第一用户设备, 配置为向所述节点发送资源请求消息, 所述资源 请求消息为设备到设备 D2D调度请求消息或緩冲区状态报告;
所述节点, 配置为所述第一用户设备发送的所述资源请求消息; 根据 所述资源请求消息分配资源; 向所述第二用户设备发送所述资源对应的 D2D资源配置信息和 /或 D2D资源分配信息;
所述第二用户设备, 配置为接收所述节点发送的所述 D2D资源配置信 息和 /或 D2D资源分配信息;使用所述 D2D资源配置信息和 /或 D2D资源分 配信息对应的资源进行 D2D传输。
41、 一种计算机存储介质, 所述计算机存储介质中存储有计算机可执 行指令, 所述计算机可执行指令用于执行权利要求 1至 14任一项所述的资 源分配方法。
42、 一种计算机存储介质, 所述计算机存储介质中存储有计算机可执 行指令, 所述计算机可执行指令用于执行权利要求 15至 20任一项所述的 资源分配方法。
43、 一种计算机存储介质, 所述计算机存储介质中存储有计算机可执 行指令, 所述计算机可执行指令用于执行权利要求 21至 26任一项所述的 资源分配方法。
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