WO2013139273A1 - 资源分配消息发送方法、设备发现方法及相关设备 - Google Patents

资源分配消息发送方法、设备发现方法及相关设备 Download PDF

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Publication number
WO2013139273A1
WO2013139273A1 PCT/CN2013/072926 CN2013072926W WO2013139273A1 WO 2013139273 A1 WO2013139273 A1 WO 2013139273A1 CN 2013072926 W CN2013072926 W CN 2013072926W WO 2013139273 A1 WO2013139273 A1 WO 2013139273A1
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Prior art keywords
resource
user terminal
service
communication
base station
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PCT/CN2013/072926
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English (en)
French (fr)
Inventor
谢芳
胡南
崔春风
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中国移动通信集团公司
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Publication of WO2013139273A1 publication Critical patent/WO2013139273A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information

Definitions

  • the present application claims to be submitted to the Chinese Patent Office on March 21, 2012, the application number is 201210076876.5, and the invention name is "resource allocation message sending method, device discovery method and related equipment" Priority of Chinese Patent Application, the entire contents of which is incorporated herein by reference.
  • the present invention relates to the field of device-to-device communication (D2D) in the field of wireless communication technologies, and in particular, to a method for transmitting a resource allocation message, a device discovery method, and related devices.
  • D2D device-to-device communication
  • D2D technology refers to a technology that directly communicates without requiring infrastructure between user terminals.
  • Traditional D2D technologies include Bluetooth, wifi direct, and more.
  • the D2D function is not provided between the user terminals, and the communication between the user terminals must be performed by the base station for data forwarding.
  • the introduction of D2D technology in cellular networks enables user terminals that are closer to each other to discover each other and directly transmit data, which can save air interface and core network resources, and provide new application services, such as battle games, short-range broadcasting, and some These machines communicate with machines (M2M). Therefore, some solutions for implementing D2D technology in a cellular network are proposed in the prior art, for example, an application for providing D2D services for user terminals in a Long Term Evolution (LTE) network.
  • LTE Long Term Evolution
  • An application for providing a D2D service for a user terminal in a cellular network needs to enable the user terminal to discover the peer D2D device, that is, when the D2D device itself is the sender, the D2D device as the receiver can be found, and when it is the receiver When a D2D device is used, it can discover the D2D device as the sender.
  • the network side of the cellular network needs to allocate a part of fixed communication resources among the communication resources provided for the user terminal, and is specifically used for discovering D2D devices between user terminals, that is, D2D as a sender.
  • the device uses the part of the communication resource to send the D2D service broadcast message carrying the D2D information.
  • the other user terminal receives the D2D service broadcast message at the resource location corresponding to the part of the communication resource, and determines according to the D2D information carried therein. Whether to perform D2D service with the D2D device as the sender.
  • the above-mentioned D2D device discovery scheme implements a single-sheet, which is suitable for a scenario where D2D communication needs a lot.
  • the allocated communication resources are fixed and dedicated to D2D device discovery, when there are fewer D2D communication requirements in some cells, communication resources in the network are wasted, and D2D is desired as the receiver.
  • the device because it is not clear whether there is currently a D2D service broadcast message broadcast, it needs to constantly try to receive, that is, the blind detection of the receiving device is increased. The number of times causes the processing resources of the receiving device to consume more.
  • the embodiments of the present invention provide a resource allocation message sending method, a device discovery method, and related devices, which are used to solve the problem of waste of communication resources existing in the existing D2D device discovery technology.
  • An embodiment of the present invention provides a method for sending a resource allocation message, including:
  • the base station allocates, according to a preset allocation policy, the first communication resource for discovering the D2D device to the user terminal according to the resource requirement of the current D2D service;
  • the embodiment of the invention further provides a device discovery method, including:
  • the user terminal receives the D2D resource allocation message that is sent by the base station and carries the first communication resource, where the first communication resource is a resource allocated by the base station for discovering the D2D device according to the resource requirement of the current D2D service;
  • the D2D service broadcast message carrying the D2D information is sent by the first communication resource carried in the D2D resource allocation message, and is used to discover a peer D2D device that performs D2D service with itself.
  • the embodiment of the invention further provides a device discovery method, including:
  • the user terminal receives the D2D resource allocation message that is sent by the base station and carries the first communication resource, where the first communication resource is a resource allocated by the base station for discovering the D2D device according to the resource requirement of the current D2D service; Receiving, by the resource location corresponding to the first communication resource, the D2D service broadcast message carrying the D2D information sent by the other user terminal by using the first communication resource;
  • the embodiment of the invention further provides a base station, including:
  • An allocating unit configured to allocate a first communication resource for discovering a D2D device to the user terminal according to a resource allocation requirement of the current D2D service according to a preset allocation policy
  • a first sending unit configured to send a D2D resource allocation message that carries the allocated first communication resource.
  • the embodiment of the invention further provides a user terminal, including:
  • a second receiving unit configured to receive a D2D resource allocation message that is sent by the base station and that carries the first communication resource, where the first communication resource is a resource requirement that the base station resides in the current D2D service, and is allocated for the user terminal to discover the D2D.
  • Equipment resources
  • a second sending unit configured to send, by using the first communication resource carried in the D2D resource allocation message, a D2D service broadcast message carrying D2D information, and used to discover a peer D2D device that performs D2D service with itself.
  • the embodiment of the invention further provides a user terminal, including: a third receiving unit, configured to receive a D2D resource allocation message that is sent by the base station and that carries the first communication resource, where the first communication resource is a resource requirement that the base station resides in the current D2D service, and is allocated for the user terminal to discover the D2D. a resource of the device; and receiving, by the resource location corresponding to the first communication resource, in the D2D resource allocation message, receiving a D2D service broadcast message that is sent by the other user terminal and using the first communication resource to carry D2D information;
  • the processing unit is configured to determine whether to perform D2D service with the other user terminals based on the received D2D information carried in the D2D service broadcast message.
  • the base station allocates a first communication resource for discovering the D2D device to the user terminal according to the resource allocation requirement of the current D2D service according to the preset allocation policy, and sends the D2D carrying the allocated first communication resource.
  • the sending user terminal after receiving the D2D resource allocation message, sends the D2D service broadcast message carrying the D2D information by using the first communication resource carried therein; correspondingly, the receiving user terminal receives the message
  • the D2D service broadcast message sent by the sender user terminal is received at the resource location corresponding to the first communication resource carried in the D2D resource allocation message, and based on the D2D information carried therein, it is determined whether to perform with the sender user terminal.
  • the D2D service realizes the discovery of D2D devices.
  • the communication resources used for discovering the D2D device are not fixedly allocated, but are allocated to the user terminal according to the resource requirements of the current D2D service, so that the user terminal can be allocated for discovery more reasonably.
  • the communication resources of the D2D device reduce the waste of communication resources.
  • FIG. 1 is a flowchart of a method for sending a resource allocation message according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a device discovery method applied to a user terminal as a sender according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a device discovery method applied to a user terminal as a receiver according to an embodiment of the present invention
  • 4 is a flowchart of processing for resource allocation and D2D device discovery according to Embodiment 1 of the present invention
  • FIG. 5 is a flowchart of processing for resource allocation and D2D device discovery according to Embodiment 2 of the present invention
  • FIG. 7 is a schematic structural diagram of a user terminal as a sender in a D2D device according to Embodiment 4 of the present invention
  • FIG. 8 is a schematic structural diagram of a user terminal as a receiver in a D2D device according to Embodiment 5 of the present invention.
  • an embodiment of the present invention provides a A preferred embodiment of the present invention is described with reference to the accompanying drawings in the accompanying drawings. It is to be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention. The invention is defined. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
  • An embodiment of the present invention provides a method for sending a resource allocation message, as shown in FIG. 1 , including:
  • Step 101 The base station allocates a first communication resource for discovering the D2D device to the user terminal according to the resource requirement of the current D2D service according to the preset allocation policy.
  • Step 102 Send a D2D resource allocation message carrying the allocated first communication resource.
  • the embodiment of the present invention further provides a device discovery method, which is applied to a user terminal as a sender, as shown in FIG. 2, including:
  • Step 201 The user terminal receives a D2D resource allocation message that is sent by the base station and carries the first communication resource, where the first communication resource is a resource allocated by the base station for discovering the D2D device according to the resource requirement of the current D2D service.
  • Step 202 Send a D2D service broadcast message carrying D2D information by using the first communication resource carried in the D2D resource allocation message, and use it to discover the peer D2D device that performs D2D service with itself.
  • the embodiment of the present invention further provides a device discovery method, which is applied to a user terminal as a receiver, as shown in FIG. 3, including:
  • Step 301 The user terminal receives a D2D resource allocation message that is sent by the base station and carries the first communication resource, where the first communication resource is a resource allocated by the base station for discovering the D2D device according to the resource requirement of the current D2D service.
  • Step 302 Receive, by using a resource location corresponding to the first communication resource that is carried in the D2D resource allocation message, a D2D service broadcast message that carries the D2D information sent by the other user terminal by using the first communication resource.
  • Step 303 Determine, according to the D2D information carried in the received D2D service broadcast message, whether to perform D2D service with the other user terminal.
  • the base station allocates the first communication resource according to the resource allocation requirement of the current D2D service according to the preset allocation policy
  • the preset allocation policy may include the following two methods:
  • the first method is: according to the different environment conditions of the D2D service, the first communication resource corresponding to the environment situation is allocated to the user terminal in advance, and when the sending period arrives, the first corresponding to the current environment situation is determined. a communication resource, and transmitting, by the D2D resource allocation broadcast message carrying, to enable the user terminal in the cell to know the allocated first communication resource;
  • the second mode after receiving the D2D resource allocation request sent by the user terminal, according to the received D2D resource allocation request, the user terminal is allocated a first communication resource for discovering the D2D device, and when transmitting, to the The user terminal sends a D2D resource allocation message carrying the allocated first communication resource, and also sends the first communication
  • the D2D resource broadcast message of the resource is used to enable other user terminals in the cell to know the first communication resource allocated for the user terminal that will initiate the D2D service.
  • the sender user terminal and the receiver user terminal can perform the processing flow of the respective D2D device discovery accordingly, and the specific implementation is implemented below with reference to the accompanying drawings. The method provided by the present invention is described in detail.
  • a user terminal that is a sender in a D2D device is referred to as a first user terminal, and will be a receiver.
  • the user terminal is referred to as a second user terminal, and specifically includes the following processing steps:
  • Step 401 When the sending period arrives, the base station determines, according to the resource requirement of the D2D service, the first communication resource that is allocated to the user terminal and is used to discover the D2D device corresponding to the current environment.
  • the first communication resource is a communication resource that the base station allocates according to the resource requirements of the D2D service to the user terminal in advance according to the resource requirement of the D2D service.
  • the environment condition may be related to environmental conditions such as time and location.
  • a user who has less demand for D2D services in a coverage area may allocate more first communication resources to the user terminal, and a cell with less demand for D2D services may be a user.
  • the terminal allocates less first communication resources;
  • the user has a greater demand for the D2D service, and can allocate more for the user terminal.
  • the first communication resource and for a period of less demand for the D2D service, the user terminal may be allocated less first communication resources.
  • Step 402 After determining the pre-assigned first communication resource, the base station sends a D2D resource allocation broadcast message carrying the allocated first communication resource, and sends the broadcast message in a broadcast message manner, so that the base station can be covered by the base station.
  • the user terminal can know the allocated first communication resource.
  • Step 403 After receiving the D2D resource allocation broadcast message, the first user terminal that has the D2D service initiation request acquires the first communication resource that is carried, and uses the first communication resource as the sender D2D device to send and carry A D2D service broadcast message of its own D2D information, used to discover a peer D2D device that performs D2D service with itself.
  • the frequency hopping mechanism selects some of the communication resources used to avoid collisions with communication resources currently used by other user terminals.
  • the D2D information can be flexibly set by the user who uses the first user terminal according to actual needs, and can be generally set as the summary information of the application service carried by the D2D service, for example, the service type (advertising class, social class, Interactive game class, etc., business ID, business content description information, etc.
  • the service type as the service type (advertising class, social class, Interactive game class, etc., business ID, business content description information, etc.
  • Step 404 The second user terminal having the D2D service receiving requirement, after receiving the D2D resource allocation broadcast message, acquiring the first communication resource carried therein, and acting as the receiving D2D device, the resource corresponding to the first communication resource In the location, after receiving the D2D service broadcast message sent by the first user terminal, the D2D information carried is obtained from the D2D service.
  • Step 405 The second user terminal may display the obtained D2D information to the user, and the user determines whether to perform D2D service with the first user terminal based on the content of the D2D information.
  • the D2D service communication request is sent to the base station, and is used to notify the base station to request the D2D service with the first user terminal.
  • Step 406 After receiving the D2D service communication request sent by the second user terminal, the base station allocates communication resources for D2D service data transmission to the first user terminal and the second user terminal, and notifies the first user terminal and the second user. terminal.
  • Step 407 The first user terminal and the second user terminal use the communication resources allocated by the base station for D2D service data transmission to perform D2D service data transmission.
  • the second user terminal may also send a D2D service communication request to the first user terminal, to notify the first user terminal to request D2D with the other party.
  • Service and the first user terminal sends a D2D service communication request to the base station, and informs the base station that the D2D service is to be performed by the second user terminal, and then the base station receives the D2D service communication request, and the first user terminal and the first user terminal.
  • the two user terminals allocate communication resources for D2D service data transmission, and the first user terminal and the second user terminal learn the allocated communication resources, and use the communication resources to perform D2D service data transmission.
  • the communication resources used for discovering the D2D device are no longer fixedly divided, and the ⁇ & station is based on the different environmental conditions of the D2D service in advance.
  • the resource requirements are allocated to the user terminal, so that the communication resources for discovering the D2D device can be allocated to the user terminal more reasonably, and the waste of communication resources is reduced.
  • FIG. 5 is a process flow of resource allocation and D2D device discovery provided in Embodiment 2 of the present invention.
  • a user terminal that is a sender in a D2D device is referred to as a first user terminal, and will be a receiver.
  • the user terminal is referred to as a second user terminal, and specifically includes the following processing steps:
  • Step 501 A first user terminal that has a D2D service initiating request, and sends a D2D resource allocation request to the base station, where the resource for discovering the D2D device is requested by the base station.
  • the service attribute information of the application service carried by the D2D service initiated by the first user terminal may also be carried.
  • Step 502 After receiving the D2D resource allocation request sent by the first user terminal, the base station is the first user terminal. A first communication resource for discovering the D2D device is allocated.
  • the carried service attribute information may be obtained from the received D2D resource allocation request.
  • the first user terminal may be further configured to allocate a second communication resource for transmitting a reference signal, where the reference signal is used to detect a communication situation between different user terminals, for example, for other user terminals to detect themselves and the first Communication between user terminals.
  • Step 503 The base station sends, to the first user terminal, a D2D resource allocation message that carries the allocated first communication resource.
  • the second communication resource allocated for the first user terminal may also be carried.
  • Step 504 The base station sends a D2D resource broadcast message that carries the allocated first communication resource, so that other user terminals in the local cell covered by the base station can learn the first allocated for the D2D device discovery by the first user terminal. Communication resources.
  • the foregoing service attribute information of the application service carried by the D2D service initiated by the first user terminal may be carried in the sent D2D resource broadcast message.
  • the second communication resource allocated for the first user terminal for transmitting the reference signal may also be carried.
  • Step 505 After receiving the D2D resource allocation message, the first user terminal obtains the carried first communication resource, and uses the first communication resource as the sender D2D device to send the D2D service carrying the D2D information of the D2D service. Broadcast message, used to discover the peer D2D device that performs D2D service with itself.
  • the D2D information can be flexibly set by the user using the first user terminal according to actual needs, and can generally be set as the summary information of the application service carried by the D2D service, for example, the service type (advertising, social, interactive games). Etc), business ID, business content description information, etc.
  • the second communication resource that is carried may be obtained from the received D2D resource allocation message, and the reference signal is sent by using the second communication resource.
  • Step 506 The second user terminal that receives the D2D service receiving request obtains the first communication resource that is carried after receiving the D2D resource broadcast message.
  • carried service attribute information may also be obtained.
  • the second communication resource carried can also be obtained.
  • Step 507 If the second user terminal obtains the service attribute information from the D2D resource broadcast message, the service attribute information is displayed to the user, and the user determines whether to perform the D2D service with the first user terminal according to the service attribute information, if If the D2D service is to be performed with the first user terminal, the subsequent processing steps are performed, that is, the step 508 is triggered or the step 509 is triggered.
  • This step is an optional step. If the service attribute information is not carried in the broadcast message of the D2D resource, the operation does not need to be performed. Take this step.
  • Step 508 If the second user terminal acquires the second communication resource from the D2D resource broadcast message, triggering, at the resource location corresponding to the second communication resource, receiving a reference signal sent by the first user terminal by using the second communication resource, If the reference signal is received, indicating that the second user terminal can perform D2D service with the first user terminal within the D2D service communication range of the first user terminal, the step 509 is triggered; if the reference signal is not received, If the second user terminal is not within the D2D service communication range of the first user terminal, the subsequent processing flow is cancelled.
  • Step 509 After receiving the D2D service broadcast message sent by the first user terminal, the second user terminal obtains the carried D2D information from the resource location corresponding to the first communication resource.
  • Step 510 The second user terminal displays the obtained D2D information to the user, and the user determines whether to perform D2D service with the first user terminal based on the content of the D2D information.
  • the D2D service communication request is sent to the base station, and is used to notify the base station to request the D2D service with the first user terminal.
  • Step 511 After receiving the D2D service communication request sent by the second user terminal, the base station allocates communication resources for D2D service data transmission to the first user terminal and the second user terminal, and notifies the first user terminal and the second user. terminal.
  • Step 512 The first user terminal and the second user terminal use the communication resources allocated by the base station for D2D service data transmission to perform D2D service data transmission.
  • the second user terminal may also send a D2D service communication request to the first user terminal, to notify the first user terminal to request D2D with the other party.
  • Service and the first user terminal sends a D2D service communication request to the base station, and informs the base station that the D2D service is to be performed by the second user terminal, and then the base station receives the D2D service communication request, and the first user terminal and the first user terminal.
  • the two user terminals allocate communication resources for D2D service data transmission, and the first user terminal and the second user terminal learn the allocated communication resources, and use the communication resources to perform D2D service data transmission.
  • the communication resource used for discovering the D2D device is no longer fixedly divided, but is allocated by the base station according to the request of the user terminal having the D2D service requirement, compared with the prior art. That is, it is more reasonable to allocate communication resources for discovering the D2D device to the user terminal, thereby reducing waste of communication resources.
  • the second user terminal can be configured to determine whether to trigger the D2D service with the first user terminal according to the service attribute information, when the determination is performed, The processing steps of subsequently receiving the D2D service broadcast message sent by the first user terminal are avoided, and the processing resources are saved.
  • the second user terminal can be configured to determine whether the first user terminal is based on whether the reference signal sent by the first user terminal is received. Within the D2D service range of a user terminal, if not, avoiding subsequent attempts to receive the first user end The processing steps of the D2D service broadcast message sent by the terminal save processing resources.
  • Embodiment 3 of the present invention further provides a base station, and a schematic structural diagram thereof is shown in FIG.
  • the allocating unit 601 is configured to allocate a first communication resource for discovering the D2D device to the user terminal according to the resource requirement of the current device-to-device communication D2D service according to the preset allocation policy;
  • the first sending unit 602 is configured to send a D2D resource allocation message that carries the allocated first communication resource. Further, the allocating unit 601 is configured to: when the sending period arrives, determine, according to the resource requirement of the D2D service, the first communication resource that is allocated to the user terminal and is used to discover the D2D device, and the first communication resource that is allocated to the user equipment; The unit 602 is specifically configured to send a D2D resource allocation broadcast message that carries the allocated first communication resource.
  • the foregoing base station further includes:
  • the first receiving unit 603 is configured to receive a D2D resource allocation request sent by the user terminal.
  • the allocating unit 601 is configured to allocate, according to the received D2D resource allocation request, the first communication resource used for discovering the D2D device to the user terminal;
  • the first sending unit 602 is specifically configured to send, to the user terminal, a D2D resource allocation message that carries the allocated first communication resource; and is further configured to send a D2D resource broadcast message that carries the allocated first communication resource.
  • the allocating unit 601 is further configured to: after the first receiving unit receives the D2D resource allocation request sent by the user terminal, allocate, to the user terminal, a second communication resource for transmitting a reference signal, where the reference signal is used by For detecting communication between different user terminals;
  • the first sending unit 602 is specifically configured to send, to the user terminal, a D2D resource allocation message that carries the allocated first communication resource and the second communication resource, and sends the first communication resource and the A D2D resource broadcast message of the second communication resource.
  • the first receiving unit 603 is specifically configured to receive a D2D resource allocation request that is sent by the user terminal and that carries the service attribute information, where the service attribute information is the service attribute information of the application service carried by the D2D service initiated by the user terminal. ;
  • the first sending unit 602 is specifically configured to send a D2D resource broadcast message that carries the allocated first communication resource and the service attribute information.
  • the embodiment 4 of the present invention further provides a user terminal as a sender in the D2D device, and a schematic structural diagram thereof is shown in FIG. 7 .
  • a user terminal as a sender in the D2D device
  • a schematic structural diagram thereof is shown in FIG. 7 .
  • the second receiving unit 701 is configured to receive, by the base station, a device-to-device communication D2D resource that carries the first communication resource. a source allocation message, where the first communication resource is a resource allocated by the base station for discovering a D2D device according to a resource requirement of the current D2D service;
  • the second sending unit 702 is configured to send, by using the first communication resource carried in the D2D resource allocation message, a D2D service broadcast message that carries D2D information, and is used to discover a peer D2D device that performs D2D service with itself.
  • the second sending unit 702 is further configured to: before the second receiving unit receives the D2D resource allocation message that is sent by the base station and carries the first communication resource, send a D2D resource allocation request to the base station, where A resource used to discover D2D devices.
  • the second receiving unit 701 is specifically configured to receive, by the base station, a D2D resource allocation message that carries the first communication resource and the second communication resource, where the second communication resource is allocated by the base station to the user terminal for transmission.
  • a resource of a reference signal where the reference signal is used to detect a communication situation between different user terminals;
  • the second sending unit 702 is further configured to send the reference signal by using the second communication resource carried in the D2D resource allocation message.
  • the second sending unit 702 is specifically configured to send, to the base station, a D2D resource allocation request that carries service attribute information, where the service attribute information is service attribute information of the application service carried by the D2D service initiated by the user terminal.
  • the device discovery method according to the foregoing embodiment of the present invention, correspondingly, the fifth embodiment of the present invention further provides a user terminal as a receiver in the D2D device, and a schematic structural diagram thereof is shown in FIG. Specifically include:
  • the third receiving unit 801 is configured to receive, by the base station, a device-to-device communication D2D resource allocation message that carries the first communication resource, where the first communication resource is allocated by the base station to the user terminal according to the resource requirement of the current D2D service. a resource for discovering the D2D device; and receiving, by the resource location corresponding to the first communication resource, the D2D service that is sent by the other user terminal and using the first communication resource to carry the D2D information. Broadcast message
  • the service processing unit 802 is configured to determine whether to perform D2D service with the other user terminals based on the received D2D information carried in the D2D service broadcast message.
  • the third receiving unit 801 is specifically configured to receive, by the base station, a D2D resource broadcast message that carries the first communication resource and the second communication resource, where the second communication resource is used by the base station to allocate the user terminal for transmission.
  • a reference signal the reference signal is used to detect a communication situation between different user terminals; and is further configured to receive the D2D service sent by the other user terminal at a resource location corresponding to the first communication resource Before the broadcast message, the reference signal sent by the other user terminal by using the second communication resource is received at a resource location corresponding to the second communication resource carried in the D2D resource broadcast message.
  • the third receiving unit 801 is specifically configured to receive, by the base station, the first communication resource and the service genus a D2D resource broadcast message of the sex information, where the service attribute information is service attribute information of the application service carried by the D2D service initiated by the other user terminal;
  • the service processing unit 802 is further configured to: before the receiving, by the third receiving unit, the D2D service broadcast message sent by the other user terminal, according to the D2D resource broadcast, at a resource location corresponding to the first communication resource
  • the service attribute information carried in the message is determined to trigger the D2D service broadcast message sent by the other user terminal by triggering the resource location corresponding to the first communication resource.
  • the solution provided by the embodiment of the present invention includes: the base station allocates, according to the preset allocation policy, the first communication resource for discovering the D2D device to the user terminal according to the resource requirement of the current D2D service; A D2D resource allocation message for the first communication resource.
  • the user terminal that is the sender of the D2D device receives the D2D resource allocation message that is sent by the base station and carries the first communication resource; and sends the D2D service broadcast that carries the D2D information by using the first communication resource carried in the D2D resource allocation message. Message.
  • the user terminal that is the receiver in the D2D device receives the D2D resource allocation message that is sent by the base station and carries the first communication resource; and receives other users on the resource location corresponding to the first communication resource carried in the D2D resource allocation message.
  • the D2D service broadcast message carrying the D2D information sent by the terminal using the first communication resource; and determining whether to perform the D2D service with the other user terminal based on the D2D information carried in the received D2D service broadcast message.

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Abstract

本发明公开了一种资源分配消息发送方法、设备发现方法及相关设备,包括:基站按照预设分配策略,根据当前D2D业务的资源需求,为用户终端分配用于发现D2D设备的第一通信资源;并发送携带分配的第一通信资源的D2D资源分配消息。相应的,作为D2D设备中发送方的用户终端,以及作为D2D设备中接收方的用户终端,可以使用基站分配的该第一通信资源进行D2D设备的发现。采用本发明实施例提供的方案,减少了用于发现D2D设备的通信资源的浪费。

Description

资源分配消息发送方法、 设备发现方法及相关设备 本申请要求在 2012年 03月 21 日提交中国专利局、 申请号为 201210076876.5、 发明名 称为"资源分配消息发送方法、设备发现方法及相关设备"的中国专利申请的优先权, 其全部内 容通过引用结合在本申请中。 技术领域 本发明涉及无线通信技术领域中的设备到设备通信 ( D2D , Device to Device Communication )技术领域, 尤其涉及一种资源分配消息发送方法、设备发现方法及相关设 备。 背景技术
D2D技术是指用户终端之间不需要基础设施, 而直接进行通信的技术。 传统的 D2D 技术包括蓝牙, wifi direct等。 目前, 在目前的蜂窝网络实际应用中, 用户终端之间还不具 备 D2D功能,用户终端之间进行通信必须通过基站进行数据转发。在蜂窝网络中引入 D2D 技术, 能够使得距离较近的用户终端彼此互相发现并直接进行数据传输, 可以节省空口和 核心网络资源, 并提供新的应用业务, 如对战游戏, 近距离广播, 以及某些机器与机器 ( Machine to Machine, M2M )通信等。 因此, 现有技术中提出了一些在蜂窝网络中实现 D2D技术的方案, 例如, 在长期演进(Long Term Evolution, LTE ) 网络中为用户终端提 供 D2D业务的应用。
在蜂窝网络中为用户终端提供 D2D业务的应用,需要使得用户终端能够发现对端 D2D 设备 , 即当自身作为发送方的 D2D设备时, 能够发现作为接收方的 D2D设备 , 当自身作 为接收方的 D2D设备时, 能够发现作为发送方的 D2D设备。
在现有的 D2D设备发现方案中,蜂窝网络的网络侧需要在为用户终端提供的通信资源 中, 划分出一部分固定通信资源, 专门用于用户终端之间发现 D2D设备, 即作为发送方的 D2D设备使用这部分通信资源, 发送携带 D2D信息的 D2D业务广播消息, 相应的, 其它 用户终端在这部分通信资源对应的资源位置上,接收该 D2D业务广播消息,并根据其中携 带的 D2D信息, 确定是否与作为发送方的该 D2D设备进行 D2D业务。
上述 D2D设备发现方案实施筒单, 适合 D2D通信需求较多的场景。 然而, 由于分配 的这部分通信资源是固定的, 且专用于 D2D设备发现, 所以, 当一些小区中 D2D通信需 求较少时, 将造成网络中通信资源的浪费, 并且, 希望作为接收方的 D2D设备, 由于不清 楚当前是否有 D2D业务广播消息在广播,需要不断试图去接收, 即增加了接收设备的盲检 次数, 导致接收设备的处理资源消耗较多。 发明内容 本发明实施例提供一种资源分配消息发送方法、 设备发现方法及相关设备, 用以解决 现有 D2D设备发现技术中存在的通信资源浪费的问题。
本发明实施例提供一种资源分配消息发送方法, 包括:
基站按照预设分配策略, 根据当前 D2D 业务的资源需求, 为用户终端分配用于发现 D2D设备的第一通信资源; 并
发送携带分配的所述第一通信资源的 D2D资源分配消息。
本发明实施例还提供一种设备发现方法, 包括:
用户终端接收基站发送的携带第一通信资源的 D2D资源分配消息,所述第一通信资源 为所述基站根据当前 D2D业务的资源需求,为用户终端分配的用于发现 D2D设备的资源; 使用所述 D2D资源分配消息中携带的所述第一通信资源, 发送携带 D2D信息的 D2D 业务广播消息, 用于发现与自身进行 D2D业务的对端 D2D设备。
本发明实施例还提供一种设备发现方法, 包括:
用户终端接收基站发送的携带第一通信资源的 D2D资源分配消息,所述第一通信资源 为所述基站根据当前 D2D业务的资源需求,为用户终端分配的用于发现 D2D设备的资源; 在所述 D2D资源分配消息中携带的所述第一通信资源对应的资源位置上,接收其它用 户终端使用所述第一通信资源发送的携带 D2D信息的 D2D业务广播消息;
基于接收的所述 D2D业务广播消息中携带的所述 D2D信息, 确定是否与所述其它用 户终端进行 D2D业务。
本发明实施例还提供一种基站, 包括:
分配单元, 用于按照预设分配策略,根据当前 D2D业务的资源需求, 为用户终端分配 用于发现 D2D设备的第一通信资源;
第一发送单元, 用于发送携带分配的所述第一通信资源的 D2D资源分配消息。
本发明实施例还提供一种用户终端, 包括:
第二接收单元,用于接收基站发送的携带第一通信资源的 D2D资源分配消息,所述第 一通信资源为所述基站才 居当前 D2D业务的资源需求, 为用户终端分配的用于发现 D2D 设备的资源;
第二发送单元,用于使用所述 D2D资源分配消息中携带的所述第一通信资源,发送携 带 D2D信息的 D2D业务广播消息, 用于发现与自身进行 D2D业务的对端 D2D设备。
本发明实施例还提供一种用户终端, 包括: 第三接收单元,用于接收基站发送的携带第一通信资源的 D2D资源分配消息,所述第 一通信资源为所述基站才 居当前 D2D业务的资源需求, 为用户终端分配的用于发现 D2D 设备的资源; 以及在所述 D2D 资源分配消息中携带的所述第一通信资源对应的资源位置 上,接收其它用户终端使用所述第一通信资源发送的携带 D2D信息的 D2D业务广播消息; 业务处理单元, 用于基于接收的所述 D2D业务广播消息中携带的所述 D2D信息, 确 定是否与所述其它用户终端进行 D2D业务。
本发明有益效果包括:
本发明实施例提供的方法中,基站按照预设分配策略,根据当前 D2D业务的资源需求, 为用户终端分配用于发现 D2D设备的第一通信资源, 并发送携带分配的第一通信资源的 D2D资源分配消息; 相应的, 发送方用户终端在接收到该 D2D资源分配消息后, 使用其 中携带的第一通信资源, 发送携带 D2D信息的 D2D业务广播消息; 相应的, 接收方用户 终端在接收到该 D2D资源分配消息后,在其中携带的第一通信资源对应的资源位置上,接 收发送方用户终端发送的 D2D业务广播消息, 并基于其中携带的 D2D信息, 确定是否与 该发送方用户终端进行 D2D业务, 从而实现了 D2D设备的发现。 与现有技术相比, 用于 发现 D2D设备的通信资源, 不再是固定划分的, 而是根据当前 D2D业务的资源需求为用 户终端分配的,所以能够更合理的为用户终端分配用于发现 D2D设备的通信资源,减少通 信资源的浪费。 附图说明 附图用来提供对本发明的进一步理解, 并且构成说明书的一部分, 与本发明实施例一 起用于解释本发明, 并不构成对本发明的限制。 在附图中:
图 1为本发明实施例提供的资源分配消息发送方法的流程图;
图 2为本发明实施例提供的应用于作为发送方的用户终端的设备发现方法的流程图; 图 3为本发明实施例提供的应用于作为接收方的用户终端的设备发现方法的流程图; 图 4为本发明实施例 1中提供的资源分配以及 D2D设备发现的处理流程图; 图 5为本发明实施例 2中提供的资源分配以及 D2D设备发现的处理流程图; 图 6为本发明实施例 3中提供的基站的结构示意图;
图 7为本发明实施例 4中提供的作为 D2D设备中的发送方的用户终端的结构示意图; 图 8为本发明实施例 5中提供的作为 D2D设备中的接收方的用户终端的结构示意图。 具体实施方式
为了给出减少用于发现 D2D设备的通信资源浪费的实现方案,本发明实施例提供了一 种资源分配消息发送方法、 设备发现方法及相关设备, 以下结合说明书附图对本发明的优 选实施例进行说明, 应当理解, 此处所描述的优选实施例仅用于说明和解释本发明, 并不 用于限定本发明。 并且在不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互 组合。
本发明实施例提供一种资源分配消息发送方法, 如图 1所示, 包括:
步骤 101、 基站按照预设分配策略, 根据当前 D2D业务的资源需求, 为用户终端分配 用于发现 D2D设备的第一通信资源。
步骤 102、 发送携带分配的第一通信资源的 D2D资源分配消息。
相应的, 本发明实施例还提供一种设备发现方法, 应用于作为发送方的用户终端, 如 图 2所示, 包括:
步骤 201、 用户终端接收基站发送的携带第一通信资源的 D2D资源分配消息, 第一通 信资源为基站根据当前 D2D业务的资源需求, 为用户终端分配的用于发现 D2D设备的资 源。
步骤 202、使用 D2D资源分配消息中携带的第一通信资源,发送携带 D2D信息的 D2D 业务广播消息, 用于发现与自身进行 D2D业务的对端 D2D设备。
相应的, 本发明实施例还提供一种设备发现方法, 应用于作为接收方的用户终端, 如 图 3所示, 包括:
步骤 301、 用户终端接收基站发送的携带第一通信资源的 D2D资源分配消息, 第一通 信资源为所述基站根据当前 D2D业务的资源需求, 为用户终端分配的用于发现 D2D设备 的资源。
步骤 302、 在 D2D资源分配消息中携带的第一通信资源对应的资源位置上, 接收其它 用户终端使用第一通信资源发送的携带 D2D信息的 D2D业务广播消息。
步骤 303、 基于接收的 D2D业务广播消息中携带的 D2D信息, 确定是否与该其它用 户终端进行 D2D业务。
进一步的, 上述步骤 101中,基站在按照预设分配策略,根据当前 D2D业务的资源需 求, 分配第一通信资源时, 其预设分配策略, 具体可以包括如下两种方式:
第一种方式: 基于自身不同的环境情况,根据 D2D业务的资源需求, 预先为用户终端 分配与环境情况对应的第一通信资源, 并在发送周期到达时, 确定出与当前环境情况对应 的第一通信资源, 并在发送时, 通过 D2D资源分配广播消息携带进行发送, 以便本小区内 的用户终端均可以获知分配的该第一通信资源;
第二种方式: 在接收到用户终端发送的 D2D资源分配请求后, 根据接收的该 D2D资 源分配请求, 为该用户终端分配用于发现 D2D设备的第一通信资源, 并在发送时, 向该用 户终端发送携带分配的第一通信资源的 D2D资源分配消息,并且,还发送携带该第一通信 资源的 D2D资源广播消息,用于使得本小区内的其它用户终端可以获知,为将要发起 D2D 业务的该用户终端分配的该第一通信资源。
针对上述两种基站对用于发现 D2D设备的第一通信资源的分配策略,发送方用户终端 和接收方用户终端, 可以相应的执行各自 D2D设备发现的处理流程, 下面结合附图, 用具 体实施例对本发明提供的方法进行详细描述。
实施例 1 :
图 4所示为本发明实施例 1中提供的资源分配以及 D2D设备发现的处理流程,为描述 方便, 将 D2D设备中, 作为发送方的用户终端称作第一用户终端, 将作为接收方的用户终 端称作第二用户终端, 具体包括如下处理步骤:
步骤 401、 基站在发送周期到达时, 确定预先根据 D2D业务的资源需求, 为用户终端 分配的与当前环境情况对应的用于发现 D2D设备的第一通信资源。
其中, 该第一通信资源是基站基于自身不同的环境情况, 根据 D2D业务的资源需求, 预先为用户终端分配与环境情况对应的通信资源, 例如, 环境情况可以与时间和位置等环 境情况相关。
比如针对覆盖商业区的基站, 由于其覆盖区域内的用户对 D2D业务的需求较大,可以 为用户终端分配较多的第一通信资源, 而对于 D2D业务的需求较少的小区,可以为用户终 端分配较少的第一通信资源;
再比如针对一些指定时间段, 如一天中的白天时间段, 或一周中的周六日时间段, 在 这些指定时间段内,用户对 D2D业务的需求较大,可以为用户终端分配较多的第一通信资 源, 而对于 D2D业务的需求较少的时间段, 可以为用户终端分配较少的第一通信资源。
步骤 402、 基站在确定出预先分配的第一通信资源后, 发送携带分配的第一通信资源 的 D2D资源分配广播消息,釆用广播消息方式发送,是为了能够使得该基站覆盖的本小区 内的用户终端均可以获知分配的该第一通信资源。
步骤 403、 有 D2D业务发起需求的第一用户终端, 在接收到该 D2D资源分配广播消 息后, 从中获取携带的第一通信资源, 并作为发送方 D2D设备, 使用该第一通信资源, 发 送携带自身的 D2D信息的 D2D业务广播消息,用于发现与自身进行 D2D业务的对端 D2D 设备。
其中, 具体可以仅使用第一通信资源中的部分通信资源, 第一通信资源中的其余通信 资源, 可以由其它有 D2D业务发起需求的用户终端使用; 较佳的, 第一用户终端可以釆用 跳频机制选择所使用的部分通信资源, 以避免与其它用户终端当前使用的通信资源发生冲 突。
其中, D2D信息可以由使用第一用户终端的用户根据实际需要灵活设置, 一般可以设 置为自身通过 D2D业务所承载的应用业务的摘要信息,例如,业务类型(广告类,社交类, 互动游戏类等), 业务 ID, 业务内容描述信息等。
步骤 404、 有 D2D业务接收需求的第二用户终端, 在接收到该 D2D资源分配广播消 息后, 从中获取携带的第一通信资源, 并作为接收方 D2D设备, 在该第一通信资源对应的 资源位置上, 接收到第一用户终端发送的该 D2D业务广播消息后, 从中获取携带的 D2D 信息。
步骤 405、 第二用户终端可以将获取的 D2D信息显示给用户, 由用户基于该 D2D信 息的内容, 确定是否与第一用户终端进行 D2D业务。
当确定将要与第一用户终端进行 D2D业务时, 向基站发送 D2D业务通信请求, 用于 告知基站自身请求与第一用户终端进行 D2D业务。
步骤 406、 基站在接收到第二用户终端发送的 D2D业务通信请求后, 为第一用户终端 和第二用户终端分配用于 D2D业务数据传输的通信资源,并告知第一用户终端和第二用户 终端。
步骤 407、第一用户终端和第二用户终端使用基站分配的用于 D2D业务数据传输的通 信资源, 进行 D2D业务数据的传输。
在上述实施例 1中,第二用户终端在确定将要与第一用户终端进行 D2D业务后,也可 以向第一用户终端发送 D2D 业务通信请求, 用于告知第一用户终端自身请求与对方进行 D2D业务, 并由第一用户终端向基站发送 D2D业务通信请求, 告知基站自身将于第二用 户终端进行 D2D业务, 然后由基站在接收到该 D2D业务通信请求后, 为该第一用户终端 和第二用户终端分配用于 D2D业务数据传输的通信资源,第一用户终端和第二用户终端在 获知分配的该通信资源, 使用该通信资源进行 D2D业务数据的传输。
釆用上述实施例 1中提供的方案, 与现有技术相比, 用于发现 D2D设备的通信资源, 不再是固定划分的, 而^ &站基于自身的不同环境情况,预先根据 D2D业务的资源需求为 用户终端分配的,所以能够更合理的为用户终端分配用于发现 D2D设备的通信资源,减少 通信资源的浪费。
实施例 2:
图 5所示为本发明实施例 2中提供的资源分配以及 D2D设备发现的处理流程,为描述 方便, 将 D2D设备中, 作为发送方的用户终端称作第一用户终端, 将作为接收方的用户终 端称作第二用户终端, 具体包括如下处理步骤:
步骤 501、 有 D2D业务发起需求的第一用户终端, 向基站发送 D2D资源分配请求, 用于向基站请求用于发现 D2D设备的资源。
进一步的, 在发送的 D2D资源分配请求中, 还可以携带第一用户终端发起的 D2D业 务所承载的应用业务的业务属性信息, 例如, 业务类型, 业务 ID等。
步骤 502、 基站在接收到第一用户终端发送的 D2D资源分配请求后, 为第一用户终端 分配用于发现 D2D设备的第一通信资源。
进一步的, 还可以从接收的 D2D资源分配请求中获取携带的业务属性信息。
进一步的, 还可以为第一用户终端分配用于传输参考信号的第二通信资源, 该参考信 号用于检测不同用户终端之间的通信情况, 例如, 用于其它用户终端检测自身与该第一用 户终端之间的通信情况。
步骤 503、基站向第一用户终端发送携带分配的所述第一通信资源的 D2D资源分配消 息。
进一步的,在发送的 D2D资源分配消息中,还可以携带为第一用户终端分配的该第二 通信资源。
步骤 504、 基站发送携带分配的第一通信资源的 D2D资源广播消息, 以便该基站覆盖 的本小区内的其它用户终端,均可以获知为该第一用户终端分配的用于 D2D设备发现的第 一通信资源。
进一步的, 还可以在发送的 D2D资源广播消息中, 携带第一用户终端发起的 D2D业 务所承载的应用业务的上述业务属性信息。
进一步的,还可以在发送的 D2D资源广播消息中,携带为第一用户终端分配的用于传 输参考信号的第二通信资源。
步骤 505、 第一用户终端, 在接收到该 D2D资源分配消息后, 从中获取携带的第一通 信资源,并作为发送方 D2D设备,使用该第一通信资源,发送携带自身的 D2D信息的 D2D 业务广播消息, 用于发现与自身进行 D2D业务的对端 D2D设备。
其中, D2D信息可以由使用第一用户终端的用户根据实际需要灵活设置, 一般可以设 置为自身通过 D2D业务所承载的应用业务的摘要信息,例如,业务类型(广告类,社交类, 互动游戏类等), 业务 ID, 业务内容描述信息等。
进一步的, 还可以从接收的 D2D资源分配消息中, 获取携带的第二通信资源, 并使用 第二通信资源发送参考信号。
步骤 506、 有 D2D业务接收需求的第二用户终端, 在接收到该 D2D资源广播消息后, 从中获取携带的第一通信资源。
进一步的, 还可以获取携带的业务属性信息。
进一步的, 还可以获取携带的第二通信资源。
步骤 507、 如果第二用户终端从 D2D资源广播消息中获取到业务属性信息, 则向用户 显示该业务属性信息, 由用户基于该业务属性信息,确定是否与第一用户终端进行 D2D业 务, 如果确定将要与第一用户终端进行 D2D业务, 则进入后续处理步骤, 即触发执行步骤 508或触发执行步骤 509。
本步骤为可选步骤,如果 D2D资源广播消息中未携带上述业务属性信息,则不需要执 行本步骤。
步骤 508、 如果第二用户终端从 D2D资源广播消息中获取到第二通信资源, 则触发在 该第二通信资源对应的资源位置上, 接收第一用户终端使用第二通信资源发送的参考信 号,如果接收到该参考信号,表示第二用户终端在第一用户终端的 D2D业务通信范围之内, 可以与第一用户终端进行 D2D业务, 则触发执行步骤 509; 如果未接收到该参考信号, 表 示第二用户终端不在第一用户终端的 D2D业务通信范围之内, 则取消后续的处理流程。
步骤 509、 第二用户终端在该第一通信资源对应的资源位置上, 接收到第一用户终端 发送的该 D2D业务广播消息后, 从中获取携带的 D2D信息。
步骤 510、 第二用户终端将获取的 D2D信息显示给用户, 由用户基于该 D2D信息的 内容, 确定是否与第一用户终端进行 D2D业务。
当确定将要与第一用户终端进行 D2D业务时, 向基站发送 D2D业务通信请求, 用于 告知基站自身请求与第一用户终端进行 D2D业务。
步骤 511、 基站在接收到第二用户终端发送的 D2D业务通信请求后, 为第一用户终端 和第二用户终端分配用于 D2D业务数据传输的通信资源,并告知第一用户终端和第二用户 终端。
步骤 512、第一用户终端和第二用户终端使用基站分配的用于 D2D业务数据传输的通 信资源, 进行 D2D业务数据的传输。
在上述实施例 2中,第二用户终端在确定将要与第一用户终端进行 D2D业务后,也可 以向第一用户终端发送 D2D 业务通信请求, 用于告知第一用户终端自身请求与对方进行 D2D业务, 并由第一用户终端向基站发送 D2D业务通信请求, 告知基站自身将于第二用 户终端进行 D2D业务, 然后由基站在接收到该 D2D业务通信请求后, 为该第一用户终端 和第二用户终端分配用于 D2D业务数据传输的通信资源,第一用户终端和第二用户终端在 获知分配的该通信资源, 使用该通信资源进行 D2D业务数据的传输。
釆用上述实施例 2中提供的方案, 与现有技术相比, 用于发现 D2D设备的通信资源, 不再是固定划分的, 而是基站根据有 D2D业务需求的用户终端的请求分配的, 即实现更合 理的为用户终端分配用于发现 D2D设备的通信资源, 减少了通信资源的浪费。
并且, 当基站发送的 D2D资源广播消息中携带上述业务属性信息时,可以使得第二用 户终端能够基于该业务属性信息,确定是否触发后续与第一用户终端进行 D2D业务, 当确 定进行时,则避免了后续接收第一用户终端发送的 D2D业务广播消息的处理步骤,节省了 处理资源。
并且,当基站发送的 D2D资源广播消息中携带上述用于传输参考信号的第二通信资源 时, 可以使得第二用户终端能够基于是否接收到第一用户终端发送的参考信号, 判断自身 是否在第一用户终端的 D2D业务范围之内,如果不在,则避免了后续试图接收第一用户终 端发送的 D2D业务广播消息的处理步骤, 节省了处理资源。
实施例 3:
基于同一发明构思, 根据本发明上述实施例提供的资源分配消息发送方法, 相应地, 本发明实施例 3还提供了一种基站, 其结构示意图如图 6所示, 具体包括:
分配单元 601 , 用于按照预设分配策略, 根据当前设备到设备通信 D2D业务的资源需 求, 为用户终端分配用于发现 D2D设备的第一通信资源;
第一发送单元 602, 用于发送携带分配的所述第一通信资源的 D2D资源分配消息。 进一步的, 分配单元 601 , 具体用于在发送周期到达时, 确定预先根据 D2D业务的资 源需求, 为用户终端分配的与当前环境情况对应的用于发现 D2D设备的第一通信资源; 第一发送单元 602,具体用于发送携带分配的所述第一通信资源的 D2D资源分配广播 消息。
进一步的, 上述基站, 还包括:
第一接收单元 603 , 用于接收用户终端发送的 D2D资源分配请求;
分配单元 601 , 具体用于根据接收的所述 D2D资源分配请求, 为所述用户终端分配用 于发现 D2D设备的第一通信资源;
第一发送单元 602, 具体用于向所述用户终端发送携带分配的所述第一通信资源的 D2D资源分配消息; 以及还用于发送携带分配的所述第一通信资源的 D2D资源广播消息。
进一步的, 分配单元 601 , 还用于在所述第一接收单元接收用户终端发送的 D2D资源 分配请求之后, 为所述用户终端分配用于传输参考信号的第二通信资源, 所述参考信号用 于检测不同用户终端之间的通信情况;
第一发送单元 602, 具体用于向所述用户终端发送携带分配的所述第一通信资源和所 述第二通信资源的 D2D资源分配消息,以及发送携带分配的所述第一通信资源和所述第二 通信资源的 D2D资源广播消息。
进一步的,第一接收单元 603 ,具体用于接收用户终端发送的携带业务属性信息的 D2D 资源分配请求,所述业务属性信息为所述用户终端发起的 D2D业务所承载的应用业务的业 务属性信息;
第一发送单元 602, 具体用于发送携带分配的所述第一通信资源和所述业务属性信息 的 D2D资源广播消息。
实施例 4:
基于同一发明构思, 根据本发明上述实施例提供的设备发现方法, 相应地, 本发明实 施例 4还提供了一种用户终端, 作为 D2D设备中的发送方, 其结构示意图如图 7所示, 具 体包括:
第二接收单元 701 ,用于接收基站发送的携带第一通信资源的设备到设备通信 D2D资 源分配消息,所述第一通信资源为所述基站根据当前 D2D业务的资源需求,为用户终端分 配的用于发现 D2D设备的资源;
第二发送单元 702, 用于使用所述 D2D资源分配消息中携带的所述第一通信资源, 发 送携带 D2D信息的 D2D业务广播消息,用于发现与自身进行 D2D业务的对端 D2D设备。
进一步的, 第二发送单元 702, 还用于在所述第二接收单元接收基站发送的携带第一 通信资源的 D2D资源分配消息之前, 向基站发送 D2D资源分配请求, 用于向所述基站请 求用于发现 D2D设备的资源。
进一步的, 第二接收单元 701 , 具体用于接收基站发送的携带第一通信资源和第二通 信资源的 D2D资源分配消息,所述第二通信资源为所述基站为用户终端分配的用于传输参 考信号的资源, 所述参考信号用于检测不同用户终端之间的通信情况;
第二发送单元 702, 还用于使用所述 D2D资源分配消息中携带的所述第二通信资源, 发送所述参考信号。
进一步的, 第二发送单元 702, 具体用于向基站发送携带业务属性信息的 D2D资源分 配请求,所述业务属性信息为所述用户终端发起的 D2D业务所承载的应用业务的业务属性 信息。
实施例 5:
基于同一发明构思, 根据本发明上述实施例提供的设备发现方法, 相应地, 本发明实 施例 5还提供了一种用户终端, 作为 D2D设备中的接收方, 其结构示意图如图 8所示, 具 体包括:
第三接收单元 801 ,用于接收基站发送的携带第一通信资源的设备到设备通信 D2D资 源分配消息,所述第一通信资源为所述基站根据当前 D2D业务的资源需求,为用户终端分 配的用于发现 D2D设备的资源; 以及在所述 D2D资源分配消息中携带的所述第一通信资 源对应的资源位置上, 接收其它用户终端使用所述第一通信资源发送的携带 D2D信息的 D2D业务广播消息;
业务处理单元 802, 用于基于接收的所述 D2D业务广播消息中携带的所述 D2D信息, 确定是否与所述其它用户终端进行 D2D业务。
进一步的, 第三接收单元 801 , 具体用于接收基站发送的携带第一通信资源和第二通 信资源的 D2D资源广播消息,所述第二通信资源为所述基站为用户终端分配的用于传输参 考信号的资源, 所述参考信号用于检测不同用户终端之间的通信情况; 以及还用于在所述 第一通信资源对应的资源位置上,接收所述其它用户终端发送的所述 D2D业务广播消息之 前,在所述 D2D资源广播消息中携带的所述第二通信资源对应的资源位置上,接收到所述 其它用户终端使用所述第二通信资源发送的参考信号。
进一步的, 第三接收单元 801 , 具体用于接收基站发送的携带第一通信资源和业务属 性信息的 D2D资源广播消息, 所述业务属性信息为其它用户终端发起的 D2D业务所承载 的应用业务的业务属性信息;
业务处理单元 802, 还用于在所述第三接收单元在所述第一通信资源对应的资源位置 上, 接收所述其它用户终端发送的所述 D2D业务广播消息之前, 根据所述 D2D资源广播 消息中携带的所述业务属性信息, 确定触发在所述第一通信资源对应的资源位置上, 接收 所述其它用户终端发送的所述 D2D业务广播消息。
综上所述, 本发明实施例提供的方案, 包括: 基站按照预设分配策略, 根据当前 D2D 业务的资源需求,为用户终端分配用于发现 D2D设备的第一通信资源; 并发送携带分配的 第一通信资源的 D2D资源分配消息。 相应的, 作为 D2D设备中发送方的用户终端, 接收 基站发送的携带第一通信资源的 D2D资源分配消息; 并使用 D2D资源分配消息中携带的 第一通信资源, 发送携带 D2D信息的 D2D业务广播消息。 相应的, 作为 D2D设备中接收 方的用户终端, 接收基站发送的携带第一通信资源的 D2D资源分配消息; 并在 D2D资源 分配消息中携带的第一通信资源对应的资源位置上, 接收其它用户终端使用第一通信资源 发送的携带 D2D信息的 D2D业务广播消息;以及基于接收的 D2D业务广播消息中携带的 D2D信息, 确定是否与该其它用户终端进行 D2D业务。 釆用本发明实施例提供的方案, 减少了用于发现 D2D设备的通信资源的浪费。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种资源分配消息发送方法, 其特征在于, 包括:
基站按照预设分配策略,根据当前设备到设备通信 D2D业务的资源需求, 为用户终端分配用于发现 D2D设备的第一通信资源; 并
发送携带分配的所述第一通信资源的 D2D资源分配消息。
2、 如权利要求 1所述的方法, 其特征在于, 基站按照预设分配策略, 根 据当前 D2D业务的资源需求,为用户终端分配用于发现 D2D设备的第一通信 资源, 具体为:
基站在发送周期到达时, 确定预先根据 D2D业务的资源需求, 为用户终 端分配的与当前环境情况对应的用于发现 D2D设备的第一通信资源; 则
发送携带分配的所述第一通信资源的 D2D资源分配消息, 具体为: 发送携带分配的所述第一通信资源的 D2D资源分配广播消息。
3、 如权利要求 1所述的方法, 其特征在于, 基站按照预设分配策略, 根 据当前 D2D业务的资源需求,为用户终端分配用于发现 D2D设备的第一通信 资源, 具体包括:
基站接收用户终端发送的 D2D资源分配请求;
根据接收的所述 D2D资源分配请求,为所述用户终端分配用于发现 D2D 设备的第一通信资源; 则
发送携带分配的所述第一通信资源的 D2D资源分配消息, 具体为: 向所述用户终端发送携带分配的所述第一通信资源的 D2D 资源分配消 息; 则
所述方法, 还包括:
发送携带分配的所述第一通信资源的 D2D资源广播消息。
4、 如权利要求 3所述的方法, 其特征在于, 在基站接收用户终端发送的 D2D资源分配请求之后, 还包括:
为所述用户终端分配用于传输参考信号的第二通信资源, 所述参考信号 用于检测不同用户终端之间的通信情况; 则
向所述用户终端发送携带分配的所述第一通信资源的 D2D 资源分配消 息, 具体为:
向所述用户终端发送携带分配的所述第一通信资源和所述第二通信资源 的 D2D资源分配消息; 则
发送携带分配的所述第一通信资源的 D2D资源广播消息, 具体为: 发送携带分配的所述第一通信资源和所述第二通信资源的 D2D资源广播 消息。
5、 如权利要求 3 所述的方法, 其特征在于, 基站接收用户终端发送的 D2D资源分配请求, 具体为:
基站接收用户终端发送的携带业务属性信息的 D2D资源分配请求, 所述 业务属性信息为所述用户终端发起的 D2D业务所承载的应用业务的业务属性 信息; 则
发送携带分配的所述第一通信资源的 D2D资源广播消息, 具体为: 发送携带分配的所述第一通信资源和所述业务属性信息的 D2D资源广播 消息。
6、 一种设备发现方法, 其特征在于, 包括:
用户终端接收基站发送的携带第一通信资源的设备到设备通信 D2D资源 分配消息, 所述第一通信资源为所述基站才艮据当前 D2D业务的资源需求, 为 用户终端分配的用于发现 D2D设备的资源;
使用所述 D2D资源分配消息中携带的所述第一通信资源,发送携带 D2D 信息的 D2D业务广播消息,用于发现与自身进行 D2D业务的对端 D2D设备。
7、 如权利要求 6所述的方法, 其特征在于, 在用户终端接收基站发送的 携带第一通信资源的 D2D资源分配消息之前, 还包括:
所述用户终端向基站发送 D2D资源分配请求, 用于向所述基站请求用于 发现 D2D设备的资源。
8、 如权利要求 7所述的方法, 其特征在于, 用户终端接收基站发送的携 带第一通信资源的 D2D资源分配消息, 具体包括:
用户终端接收基站发送的携带第一通信资源和第二通信资源的 D2D资源 分配消息, 所述第二通信资源为所述基站为用户终端分配的用于传输参考信 号的资源, 所述参考信号用于检测不同用户终端之间的通信情况; 则
所述方法, 还包括:
使用所述 D2D资源分配消息中携带的所述第二通信资源, 发送所述参考 信号。
9、 如权利要求 7 所述的方法, 其特征在于, 所述用户终端向基站发送 D2D资源分配请求, 具体为:
所述用户终端向基站发送携带业务属性信息的 D2D资源分配请求, 所述 业务属性信息为所述用户终端发起的 D2D业务所承载的应用业务的业务属性 信息。
10、 一种设备发现方法, 其特征在于, 包括:
用户终端接收基站发送的携带第一通信资源的设备到设备通信 D2D资源 分配消息, 所述第一通信资源为所述基站才艮据当前 D2D业务的资源需求, 为 用户终端分配的用于发现 D2D设备的资源;
在所述 D2D 资源分配消息中携带的所述第一通信资源对应的资源位置 上,接收其它用户终端使用所述第一通信资源发送的携带 D2D信息的 D2D业 务广播消息;
基于接收的所述 D2D业务广播消息中携带的所述 D2D信息,确定是否与 所述其它用户终端进行 D2D业务。
11、 如权利要求 10所述的方法, 其特征在于, 用户终端接收基站发送的 携带第一通信资源的 D2D资源分配消息, 具体为:
用户终端接收基站发送的携带第一通信资源和第二通信资源的 D2D资源 广播消息 , 所述第二通信资源为所述基站为用户终端分配的用于传输参考信 号的资源, 所述参考信号用于检测不同用户终端之间的通信情况; 则
在所述第一通信资源对应的资源位置上, 接收所述其它用户终端发送的 所述 D2D业务广播消息之前, 还包括:
在所述 D2D 资源广播消息中携带的所述第二通信资源对应的资源位置 上, 接收到所述其它用户终端使用所述第二通信资源发送的参考信号。
12、 如权利要求 10所述的方法, 其特征在于, 用户终端接收基站发送的 携带第一通信资源的 D2D资源分配消息, 具体为:
用户终端接收基站发送的携带第一通信资源和业务属性信息的 D2D资源 广播消息, 所述业务属性信息为其它用户终端发起的 D2D业务所承载的应用 业务的业务属性信息; 则
在所述第一通信资源对应的资源位置上, 接收所述其它用户终端发送的 所述 D2D业务广播消息之前, 还包括:
根据所述 D2D资源广播消息中携带的所述业务属性信息, 确定触发在所 述第一通信资源对应的资源位置上, 接收所述其它用户终端发送的所述 D2D 业务广播消息。
13、 一种基站, 其特征在于, 包括:
分配单元, 用于按照预设分配策略, 根据当前设备到设备通信 D2D业务 的资源需求, 为用户终端分配用于发现 D2D设备的第一通信资源;
第一发送单元, 用于发送携带分配的所述第一通信资源的 D2D资源分配 消息。
14、 如权利要求 13所述的基站, 其特征在于, 所述分配单元, 具体用于 在发送周期到达时, 确定预先根据 D2D业务的资源需求, 为用户终端分配的 与当前环境情况对应的用于发现 D2D设备的第一通信资源;
所述第一发送单元, 具体用于发送携带分配的所述第一通信资源的 D2D 资源分配广播消息。
15、 如权利要求 13所述的基站, 其特征在于, 还包括:
第一接收单元, 用于接收用户终端发送的 D2D资源分配请求; 则 所述分配单元, 具体用于根据接收的所述 D2D资源分配请求, 为所述用 户终端分配用于发现 D2D设备的第一通信资源; 所述第一发送单元, 具体用于向所述用户终端发送携带分配的所述第一 通信资源的 D2D资源分配消息; 以及还用于发送携带分配的所述第一通信资 源的 D2D资源广播消息。
16、 如权利要求 15所述的基站, 其特征在于, 所述分配单元, 还用于在 所述第一接收单元接收用户终端发送的 D2D资源分配请求之后, 为所述用户 终端分配用于传输参考信号的第二通信资源, 所述参考信号用于检测不同用 户终端之间的通信情况;
所述第一发送单元, 具体用于向所述用户终端发送携带分配的所述第一 通信资源和所述第二通信资源的 D2D资源分配消息, 以及发送携带分配的所 述第一通信资源和所述第二通信资源的 D2D资源广播消息。
17、 如权利要求 15所述的基站, 其特征在于, 所述第一接收单元, 具体 用于接收用户终端发送的携带业务属性信息的 D2D资源分配请求, 所述业务 属性信息为所述用户终端发起的 D2D 业务所承载的应用业务的业务属性信 息;
所述第一发送单元, 具体用于发送携带分配的所述第一通信资源和所述 业务属性信息的 D2D资源广播消息。
18、 一种用户终端, 其特征在于, 包括:
第二接收单元, 用于接收基站发送的携带第一通信资源的设备到设备通 信 D2D资源分配消息,所述第一通信资源为所述基站根据当前 D2D业务的资 源需求, 为用户终端分配的用于发现 D2D设备的资源;
第二发送单元, 用于使用所述 D2D资源分配消息中携带的所述第一通信 资源, 发送携带 D2D信息的 D2D业务广播消息, 用于发现与自身进行 D2D 业务的对端 D2D设备。
19、 如权利要求 18所述的用户终端, 其特征在于, 所述第二发送单元, 还用于在所述第二接收单元接收基站发送的携带第一通信资源的 D2D资源分 配消息之前, 向基站发送 D2D资源分配请求, 用于向所述基站请求用于发现 D2D设备的资源。
20、 如权利要求 19所述的用户终端, 其特征在于, 所述第二接收单元, 具体用于接收基站发送的携带第一通信资源和第二通信资源的 D2D资源分配 消息 , 所述第二通信资源为所述基站为用户终端分配的用于传输参考信号的 资源, 所述参考信号用于检测不同用户终端之间的通信情况;
所述第二发送单元, 还用于使用所述 D2D资源分配消息中携带的所述第 二通信资源, 发送所述参考信号。
21、 如权利要求 19所述的用户终端, 其特征在于, 所述第二发送单元, 具体用于向基站发送携带业务属性信息的 D2D资源分配请求, 所述业务属性 信息为所述用户终端发起的 D2D业务所承载的应用业务的业务属性信息。
22、 一种用户终端, 其特征在于, 包括:
第三接收单元, 用于接收基站发送的携带第一通信资源的设备到设备通 信 D2D资源分配消息,所述第一通信资源为所述基站根据当前 D2D业务的资 源需求,为用户终端分配的用于发现 D2D设备的资源; 以及在所述 D2D资源 分配消息中携带的所述第一通信资源对应的资源位置上, 接收其它用户终端 使用所述第一通信资源发送的携带 D2D信息的 D2D业务广播消息;
业务处理单元, 用于基于接收的所述 D2D 业务广播消息中携带的所述 D2D信息, 确定是否与所述其它用户终端进行 D2D业务。
23、 如权利要求 22所述的用户终端, 其特征在于, 所述第三接收单元, 具体用于接收基站发送的携带第一通信资源和第二通信资源的 D2D资源广播 消息 , 所述第二通信资源为所述基站为用户终端分配的用于传输参考信号的 资源, 所述参考信号用于检测不同用户终端之间的通信情况; 以及还用于在 所述第一通信资源对应的资源位置上, 接收所述其它用户终端发送的所述 D2D业务广播消息之前,在所述 D2D资源广播消息中携带的所述第二通信资 源对应的资源位置上, 接收到所述其它用户终端使用所述第二通信资源发送 的参考信号。
24、 如权利要求 22所述的用户终端, 其特征在于, 所述第三接收单元, 具体用于接收基站发送的携带第一通信资源和业务属性信息的 D2D资源广播 消息, 所述业务属性信息为其它用户终端发起的 D2D业务所承载的应用业务 的业务属性信息;
所述业务处理单元, 还用于在所述第三接收单元在所述第一通信资源对 应的资源位置上,接收所述其它用户终端发送的所述 D2D业务广播消息之前, 根据所述 D2D资源广播消息中携带的所述业务属性信息, 确定触发在所述第 一通信资源对应的资源位置上, 接收所述其它用户终端发送的所述 D2D业务 广播消息。
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