WO2014012457A1 - 一种d2d资源获取方法、设备及系统 - Google Patents

一种d2d资源获取方法、设备及系统 Download PDF

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Publication number
WO2014012457A1
WO2014012457A1 PCT/CN2013/079204 CN2013079204W WO2014012457A1 WO 2014012457 A1 WO2014012457 A1 WO 2014012457A1 CN 2013079204 W CN2013079204 W CN 2013079204W WO 2014012457 A1 WO2014012457 A1 WO 2014012457A1
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WIPO (PCT)
Prior art keywords
configuration information
resource configuration
broadcast message
system broadcast
user equipment
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PCT/CN2013/079204
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English (en)
French (fr)
Inventor
焦斌
刘佳敏
许芳丽
Original Assignee
电信科学技术研究院
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.)
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Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to US14/415,443 priority Critical patent/US9706588B2/en
Priority to EP13820195.9A priority patent/EP2876954B1/en
Publication of WO2014012457A1 publication Critical patent/WO2014012457A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/005Discovery of network devices, e.g. terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems

Definitions

  • the present application claims priority to Chinese patent application filed on July 18, 2012 by the Chinese Patent Office, application number 201210249661.9, and the invention name is a D2D resource acquisition method, device and system. The entire contents of which are incorporated herein by reference.
  • the present invention relates to the field of communications technologies, and in particular, to a device to device (D2D) resource acquisition method, device, and system.
  • D2D device to device
  • LTE Long Term Evolution
  • the network centralized control mode is adopted, that is, the uplink and downlink data of the user equipment (User Equipment, UE) are transmitted and received under the control of the network, and the UE and the UE There is no direct communication link between the UEs. The communication between the two needs to be forwarded and controlled through the network, and the UE is not allowed to send uplink data by itself, as shown in Figure 1a.
  • a simple device-to-device (D2D) communication means that the terminal and the terminal communicate directly through Bluetooth, wireless fidelity (Wifi), etc., and the communication utilizes an unlicensed band.
  • the resource is the user's own behavior and is not managed and controlled by the network operator.
  • the application scenario is limited.
  • D2D technology is put into the mobile communication carrier network
  • another D2D communication mode can be realized.
  • certain direct communication is allowed between the terminals, and one terminal can directly obtain from other terminals through D2D mode.
  • Information, these direct communication links can be established under network control or assistance, between terminals
  • the basis of D2D communication is to discover nearby terminals.
  • the evolved base station (eNodeB, the cartridge is called e B )
  • the UE1 and the UE2 establish an uplink/downlink communication link (Uplink/Downlink) to perform resource configuration on the UE1 and the UE2.
  • the two UEs after the resource configuration can perform D2D communication based on the resource configuration information.
  • the cellular system does not support direct communication between the UEs through the D2D mode, and a necessary condition for enabling the cellular system to support the D2D communication mode between the UEs is that the D2D parties must obtain the D2D resource configuration information in advance.
  • the present invention provides a D2D resource acquisition method, device, and system for providing a system broadcast method. Knowing the way of D2D resource configuration information, implementing D2D communication between UEs.
  • a device-to-device D2D resource acquisition method includes:
  • the user equipment UE receives a predefined system broadcast message
  • D2D resource configuration information carried in the system broadcast message, where the D2D resource configuration information includes channel configuration information and a public land mobile network PLMN identifier list that shares the D2D resource configuration information.
  • a user equipment including:
  • a receiving unit configured to receive a predefined system broadcast message
  • an acquiring unit configured to acquire and save the D2D resource configuration information carried in the system broadcast message, where the D2D resource configuration information includes channel configuration information and a public land mobile network PLMN identifier list that shares the D2D resource configuration information.
  • a device-to-device D2D resource acquisition system includes:
  • a network side device configured to send a predefined system broadcast message to the user equipment UE, where the system broadcast message carries D2D resource configuration information, where the D2D resource configuration information includes channel configuration information and a shared D2D resource configuration information.
  • Public land mobile network PLMN identification list ;
  • the user equipment UE is configured to receive the system broadcast message, obtain the D2D resource configuration information carried in the system broadcast message, and save the information.
  • a user equipment including:
  • a transceiver configured to receive a system broadcast message
  • a processor configured to acquire and save D2D resource configuration information carried in the system broadcast message received by the transceiver, where the D2D resource configuration information includes channel configuration information and a public land mobile that shares the D2D resource configuration information.
  • the D2D resource configuration information includes channel configuration information and a public land mobile that shares the D2D resource configuration information.
  • a storage configured to store D2D resource configuration information acquired by the processor.
  • the D2D resource configuration information is carried in the system broadcast message by the predefined system broadcast message, and the UE obtains the D2D resource carried in the system broadcast message after receiving the system broadcast message.
  • the configuration information is saved and saved, so that the UE performs D2D communication according to the saved D2D resource information, and implements D2D resource configuration information that is notified to the UE by the system broadcast manner.
  • FIG. 1a is a schematic diagram of a network system architecture in which a centralized control mode is used in the prior art
  • FIG. 1b is a schematic diagram of a network system architecture for implementing D2D communication in a UE configuration in the prior art
  • 2 is a flowchart of a method for acquiring D2D resources in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an effective range in units of PLMNs according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an effective range of a cell as a unit according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of determining validity of D2D common resource configuration information according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an effective range of a D2D area in the embodiment of the present invention.
  • FIG. 8 is a flowchart of determining validity of D2D common resource configuration information according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a D2D resource acquisition system according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.
  • the embodiments of the present invention provide a method, a device, and a system for acquiring a D2D resource, in order to implement the D2D resource configuration information of the UE in the system broadcast manner to implement the D2D communication between the UEs.
  • the detailed method flow of D2D resource acquisition is as follows:
  • Step 201 The UE receives a predefined system broadcast message.
  • Step 202 The UE acquires and saves D2D resource configuration information carried in the system broadcast message, where the D2D resource configuration information includes channel configuration information and shares the D2D resource configuration information (such as time and/or frequency resource indication used by D2D communication, modulation).
  • D2D resource configuration information such as time and/or frequency resource indication used by D2D communication, modulation.
  • PLMN public land mobile network
  • the predefined system broadcast message may be a predefined system broadcast message for notifying the D2D common resource configuration information, or may be a predefined system broadcast message for notifying the D2D dedicated resource configuration information.
  • the D2D common resource configuration information is applicable to the sending process and the receiving process of the D2D communication, that is, the D2D common resource configuration information may be used for the transmitting UE in the D2D communication, or may be used for the receiving UE in the D2D communication;
  • the resource configuration information is only applicable to the receiving process of the D2D communication, that is, the D2D dedicated resource configuration information is only applicable to the receiving UE.
  • the UE acquires the D2D common resource configuration information carried in the first system broadcast message, where the D2D common resource configuration information includes the D2D common channel configuration information, and shares the D2D public, when the system broadcast message is a predefined first system broadcast message.
  • a list of PLMN identifiers for resource configuration information is a predefined first system broadcast message.
  • the D2D common channel configuration information includes but is not limited to one or any combination of the following information: Configuration information, transmission power information, and modulation and coding information of the slot and frequency layer.
  • the transmit power information is used to limit the maximum transmit power during the D2D communication process of the UE; the modulation and coding information is used to control the modulation and coding mode used by the UE to transmit or demodulate the D2D Discovery message; the time slot and the frequency layer
  • the configuration information is used to indicate physical layer time slots and frequency resources used by the D2D common channel.
  • the UE reads the first system broadcast message to obtain D2D common resource configuration information and saves the information.
  • the UE acquires D2D dedicated resource configuration information carried in the second system broadcast message, where the D2D dedicated resource configuration information includes D2D dedicated channel configuration information and shares the D2D dedicated information, when the system broadcast message is a predefined second system broadcast message.
  • a list of PLMN identifiers for resource configuration information is a predefined second system broadcast message.
  • the D2D dedicated channel configuration information includes but is not limited to one or any combination of the following information: time slot and frequency layer configuration information and modulation and coding information.
  • the modulation and coding information is used to notify the UE of the modulation and coding mode used in demodulating the D2D discovery message, and the time slot and frequency layer are configured to indicate physical layer time slots and frequency resources used by the D2D dedicated channel.
  • the UE reads the second system broadcast message to obtain D2D dedicated resource configuration information.
  • the first system broadcast message is defined as a new system message block (New SIB)
  • the second system broadcast message is defined as a new system message block 2 (New SIB2).
  • the UE determines whether the identifier of the PLMN currently registered by the UE belongs to the PLMN identifier list carried in the D2D resource configuration information, and determines that the identifier of the PLMN currently registered by the UE belongs to the PLMN identifier. During the list, it is determined that the UE satisfies the prerequisite for successful access to the cellular network, and the D2D resource configuration information is determined to be valid.
  • the change of the geographical location of the UE may cause the UE to change in the serving cell in the cellular network, the preset D2D area in which the UE is located, or the PLMN serving the UE.
  • three specific embodiments are proposed for the manner in which the UE judges the continuous validity of the D2D resources in the process of cellular network mobility.
  • the effective range of the D2D resource configuration information may be valid in the unit of the PLMN network, or may be in the unit of the cell.
  • the following two specific embodiments respectively determine the validity of the D2D resource configuration information by the UE under the two effective units. The process is described.
  • the specific process for the UE to determine the validity of the D2D common resource configuration information is as shown in FIG. 4:
  • Step 401 In the process of the UE initially accessing the network, the New SIB is read and the common resource configuration information carried by the UE is obtained and saved, that is, the D2D common channel configuration information and the PLMN identifier list sharing the D2D common resource configuration information are obtained;
  • Step 402 The UE determines whether the identifier of the currently registered PLMN belongs to the PLMN identifier list, and determines to belong to When the PLMN identifies the list, it is determined that the UE meets the prerequisite for successful access to the cellular network, and the public resource configuration information carried in the New SIB is determined to be valid for the UE;
  • Step 403 When the UE switches between cells managed by the currently registered PLMN, the public resource configuration information maintained by the UE is always valid.
  • the specific embodiment is the common resource configuration information, and the specific process of determining the validity of the D2D dedicated resource configuration information by the UE is the same as the process in the case where the dedicated resource configuration information is valid in the unit of the PLMN network. .
  • Step 601 In the process of the UE initially accessing the network, the New SIB is read and the common resource configuration information carried by the UE is obtained and saved, that is, the D2D common channel configuration information and the PLMN identifier list sharing the common resource configuration information;
  • Step 602 The UE determines whether the identifier of the currently registered PLMN belongs to the PLMN identifier list. When the UE determines that the UE belongs to the PLMN identifier list, it determines that the UE meets the prerequisite for successful access to the cellular network, and determines the public carried in the New SIB. The resource configuration information is valid for the UE;
  • Step 603 After the UE switches between the cells managed by the currently registered PLMN, the UE switches to a new cell, reads the common resource configuration information carried in the New SIB of the switched cell, and updates the locally saved public resource. Configuration information.
  • the common resource configuration information is taken as an example.
  • the specific process of the UE determining the validity of the D2D dedicated resource configuration information is the same as the process, and is not described here.
  • the embodiment of the present invention also proposes the concept of a D2D area (D2D Area).
  • D2D Area corresponds to a D2D Area ID (D2D Area ID).
  • D2D Area ID D2D Area ID
  • the D2D resource configuration information is valid.
  • the D2D Area includes at least one cell.
  • the multiple cells may be different types of cells, for example, may be a macro cell, a pico cell (Pico) cell, a femto cell, or the like. Multiple cells may belong to the same PLMN or may belong to different PLMNs. In actual applications, the operator configures the D2D Area to include any number of cells according to actual needs.
  • the D2D Area can be set independently of the D2D common resource configuration information and the dedicated resource configuration information.
  • the manner of notifying the D2D Area where the UE is currently located is as follows:
  • the D2D area identifier is carried in the New SIB, and the D2D area identifier is used to indicate the D2D area where the UE is currently located, and the D2D area covers at least one cell.
  • the New SIB is read to obtain the D2D area identifier and saved.
  • the D2D area identifier is carried in the New SIB2, where the D2D area identifier is used to indicate the UE.
  • the current D2D area, the D2D area covers at least one cell.
  • the New SIB2 is read to obtain the D2D area identifier and saved.
  • SIB 1 System Information Block Type 1
  • D2D Area where the UE is currently located is notified.
  • the UE receives the SIB1, and obtains and stores the D2D area identifier carried in the SIB1, where the D2D area identifier is used to represent the D2D area where the UE is currently located, and the D2D area covers at least one cell.
  • the UE after receiving the complete SIB1 message, it can determine whether it has moved to the new D2D Area according to the D2D Area ID. If the UE does not move to the new D2D Area, Then, the D2D configuration information saved by the UE is still valid, and it is not necessary to read the New SIB of the moved cell.
  • the third embodiment further provides a specific process for the UE to determine that the D2D resource configuration information is valid when the D2D resource configuration information is valid in the D2D Area.
  • Step 801 In the process of the UE initially accessing the network, the New SIB is read and the common resource configuration information carried by the UE is obtained and saved, that is, the D2D common channel configuration information and the PLMN identifier list sharing the D2D common resource configuration information are obtained;
  • Step 802 The UE determines whether the identifier of the currently registered PLMN belongs to the obtained PLMN identifier list. When the UE determines that the PLMN identifier list belongs to the UE, the UE determines that the D2D common resource configuration information carried in the New SIB is valid for the UE, and the UE reads the SIB1 or The D2D Area ID carried in the New SIB and saved;
  • Step 803 When the UE switches between the cells managed by the currently registered PLMN, each time the UE switches to a new cell, the UE reads the SIB1 or New SIB of the switched cell to obtain the configured D2D Area ID of the cell, and determines Whether the D2D Area ID of the switched cell is the same as the previously saved D2D Area ID. If they are the same, the UE does not move to the new D2D Area. If not, the UE is determined to have moved to the new D2D Area.
  • the D2D common resource configuration information carried in the New SIB of the switched cell, and the locally saved D2D common resource configuration information is updated by using the D2D common resource configuration information, and the UE is updated by using the configured D2D Area ID of the switched cell. Locally saved D2D Area ID.
  • the D2D common resource configuration information is taken as an example.
  • the D2D dedicated resource configuration information is valid in the D2D Area
  • the D2D Area where the UE is currently located may be obtained from the SIB1 or the New SIB2, and the UE determines the D2D dedicated resource.
  • the specific process of configuring information validity is the same as this process, and will not be described here.
  • the UE reads the D2D Area ID of the common resource configuration information from the New SIB, and reads the D2D Area ID of the dedicated resource configuration information from the New SIB2; when the D2D common resource configuration information and the dedicated resource configuration information are set to the same D2D Area, The UE reads the D2D Area ID of the common resource configuration information from New SIB, SIB 1 or New SIB2, from New The D2D Area ID of the dedicated resource configuration information is read in SIB, SIB1 or New SIB2.
  • the effective unit of the D2D common resource configuration information and the D2D dedicated resource configuration information of the UE is configured in any one of the foregoing three manners.
  • the UE switches between cells, the UE performs the corresponding according to the pre-configured effective unit. Processing.
  • an embodiment of the present invention further provides a user equipment (UE).
  • UE user equipment
  • User equipment mainly includes the following units:
  • the receiving unit 901 is configured to receive a predefined system broadcast message.
  • the obtaining unit 902 is configured to obtain and save the D2D resource configuration information carried in the system broadcast message, where the D2D resource configuration information includes channel configuration information and a public land mobile network PLMN identifier list that shares the D2D resource configuration information.
  • the obtaining unit is specifically configured to: when the predefined system broadcast message is the first system broadcast message, obtain the D2D common resource configuration information carried in the first system broadcast message, where the D2D common resource configuration information includes the D2D common channel configuration information. And a list of PLMN identifiers sharing the D2D common resource configuration information.
  • the acquiring unit is configured to: when the user equipment initially accesses the network, read the first system broadcast message to obtain D2D common resource configuration information.
  • the acquiring unit is specifically configured to: when the predefined system broadcast message is the second system broadcast message, obtain the D2D dedicated resource configuration information carried in the second system broadcast message, where the D2D dedicated resource configuration information includes the D2D dedicated channel configuration information. And a list of PLMN identifiers sharing the D2D dedicated resource configuration information.
  • the second system broadcast message is read to obtain D2D dedicated resource configuration information.
  • the obtaining unit is further configured to: after obtaining the D2D resource configuration information carried in the predefined system broadcast message, determining that the identifier of the currently registered PLMN belongs to the PLMN identifier list sharing the D2D resource configuration information, determining the D2D resource configuration information. effective.
  • the obtaining unit is further configured to: if the D2D resource configuration information is valid in the unit of the PLMN, when the user equipment switches between the cells managed by the currently registered PLMN, the saved D2D resource configuration information is valid.
  • the acquiring unit is further configured to: when the D2D resource configuration information is valid in a cell, when the user equipment switches between the cells managed by the currently registered PLMN, the D2D carried in the system broadcast message of the switched cell is read. Resource configuration information, and update locally saved D2D resource configuration information.
  • the obtaining unit is further configured to: when the first system broadcast message includes the D2D area identifier, read the first system broadcast message, obtain the D2D area identifier, and save the D2D area identifier, where the D2D area identifier is used to indicate the D2D area where the UE is currently located, where The D2D area covers at least one cell.
  • the obtaining unit is further configured to: when the second system broadcast message includes the D2D area identifier, read the second system The broadcast message obtains the D2D area identifier and is saved, where the D2D area identifier is used to indicate the D2D area where the UE is currently located, and the D2D area covers at least one cell.
  • the acquisition unit is also used to:
  • the D2D area identifier is used to represent the D2D area where the UE is currently located, and the D2D area covers at least one cell.
  • the acquisition unit is also used to:
  • the D2D resource configuration information carried in the system broadcast message is obtained, and the identifier of the currently registered PLMN belongs to the PLMN identifier list of the shared D2D resource configuration information; Obtaining the D2D area identifier of the switched cell when the inter-cell handover is performed by the PLMN, and determining that the D2D area identifier of the switched cell is different from the locally saved D2D area identifier, acquiring the system broadcast message of the switched cell
  • the D2D resource configuration information carried in the device, and the locally saved D2D resource configuration information and the D2D area identifier are updated.
  • the embodiment of the present invention further provides a D2D resource acquisition system.
  • the system mainly includes:
  • the network side device 1001 is configured to send a predefined system broadcast message to the UE, where the system broadcast message carries
  • the D2D resource configuration information includes channel configuration information and a public land mobile network PLMN identifier list sharing the D2D resource configuration information;
  • the UE 1002 is configured to receive a system broadcast message, obtain the D2D resource configuration information carried in the system broadcast message, and save the information.
  • the embodiment of the present invention further provides a user equipment (UE).
  • UE user equipment
  • the user equipment mainly includes the following modules: a transceiver 1101, a processor 1102, and a memory 1103. The functions of each module are as follows:
  • the transceiver 1101 is configured to receive a system broadcast message.
  • the processor 1102 is configured to acquire and save D2D resource configuration information carried in the system broadcast message received by the transceiver 1101, where the D2D resource configuration information includes channel configuration information and a public land mobile that shares the D2D resource configuration information.
  • the memory 1103 is configured to store D2D resource configuration information acquired by the processor 1102.
  • the system broadcast message received by the transceiver 1101 is a first system broadcast message; correspondingly, the processor 1102 acquires D2D common resource configuration information carried in the first system broadcast message received by the transceiver 1101, where the D2D public
  • the resource configuration information includes D2D common channel configuration information and a PLMN identification list that shares the D2D common resource configuration information.
  • the processor 1102 may obtain the D2D common resource configuration information by reading the first system broadcast message received by the transceiver 1101 during the initial access of the user equipment to the network.
  • the system broadcast message received by the transceiver 1101 is a second system broadcast message; correspondingly, the processor 1102
  • the D2D dedicated resource configuration information carried in the second system broadcast message received by the transceiver 1101 may be obtained, where the D2D dedicated resource configuration information includes D2D dedicated channel configuration information and a list of PLMN identifiers that share the D2D dedicated resource configuration information.
  • the processor 1102 may obtain the D2D dedicated resource configuration information by reading the second system broadcast message received by the transceiver 1101 during the initial access of the user equipment to the network.
  • the processor 1102 may obtain the D2D resource configuration information carried in the system broadcast message that is received by the user equipment through the transceiver 1101 in the process of initially accessing the network, and if it is determined that the identifier of the currently registered PLMN belongs to the When the PLMN identifier list in the D2D resource configuration information is described, it is determined that the D2D resource configuration information is valid, and the D2D resource configuration information determined to be valid is saved.
  • the processor 1102 is further configured to: if the D2D resource configuration information is valid in a unit of a PLMN, maintaining the locally saved D2D resource configuration information when the cells are currently switched between the currently registered PLMNs; or And if the D2D resource configuration information is valid in a cell, the D2D resource configuration information carried in the system broadcast message of the switched cell is read and updated when the cells are currently switched between the currently registered PLMNs. Locally saved D2D resource configuration information.
  • the system broadcast message received by the transceiver 1101 further includes: a D2D area identifier, where the D2D area identifier is used to notify the D2D area where the user equipment is currently located, and the D2D area covers at least one cell;
  • the processor 1102 may read the system broadcast message to obtain the D2D area identifier and save the D2D area identifier.
  • the D1D resource configuration information carried in the system broadcast message received by the user equipment through the transceiver 1101 during the initial access to the network may be obtained by the processor 1102 when the D2D resource configuration information is valid in the D2D area.
  • the identifier of the currently registered PLMN belongs to the list of the PLMN identifiers in the currently received D2D resource configuration information, determining that the currently received D2D resource configuration information is valid, and saving the D2D resource configuration information determined to be valid; Determining D2D carried in the system broadcast message of the switched cell according to the D2D area identifier carried in the system broadcast message of the switched cell, when the user equipment is switched between the cells managed by the currently registered PLMN.
  • the area identifier is different from the locally saved D2D area identifier, and the D2D resource configuration information carried in the system broadcast message of the switched cell is obtained, and the locally saved D2D resource configuration information and the D2D area identifier are updated.
  • the D2D resource configuration information is carried in the system broadcast message by the predefined system broadcast message, and the UE obtains the D2D resource carried in the system broadcast message after receiving the system broadcast message.
  • the configuration information is saved and saved, so that the UE performs D2D communication according to the saved D2D resource information, and implements D2D resource configuration information that is notified to the UE by the system broadcast manner.
  • 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 an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is applicable to computer programs implemented on one or more computer usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is included. The form of the product.
  • 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.

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  • Mobile Radio Communication Systems (AREA)

Abstract

一种接入点切换过程中传输数据的方法、系统和设备,用以解决现有技术中存在的在异构网情况下在进行接入点切换时会增加数据面的中断时延的问题。本发明实施例的方法包括:用户设备确定需要在RRC连接不变的情况下,将全部或部分DRB从一个小区重配置到另一个小区上;用户设备在进行接入点切换过程中,通过原有的数据无线承载传输数据,其中原有的数据无线承载是进行数据面的接入点切换之前最后使用的数据无线承载。由于用户设备在进行接入点切换过程中,通过原有的数据无线承载传输数据,从而减小了在异构网情况下在进行接入点切换时数据面的中断时延;进一步提高了切换效率,缩短了数据传输时间。

Description

一种 D2D资源获取方法、 设备及系统 本申请要求在 2012年 7月 18日提交中国专利局、 申请号为 201210249661.9、发明名称为 一种 D2D资源获取方法、 设备及系统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 本发明涉及通信技术领域, 尤其涉及一种设备到设备(Device to Device, D2D ) 资源 获取方法、 设备及系统。 背景技术 在长期演进(Long Term Evolution, LTE ) 系统中, 釆取的是网络集中控制方式, 即用 户设备(User Equipment, UE )的上下行数据都在网络的控制下进行发送和接收, UE与 UE 之间不存在直接的通信链路, 两者之间的通信需要通过网络进行转发和控制, 也不允许 UE 自行发送上行数据 , 如附图 1 a所示。
现有技术中, 单纯的设备到设备(Device to Device, D2D ) 的通信, 是指终端和终端 之间通过蓝牙、 无线保真 (Wifi )等技术直接通信, 这种通信利用的是免授权频段资源, 是用户自身的行为, 不受网络运营商的管理和控制, 应用场景比较受限。
如果将 D2D技术弓 I入到移动通信运营商网络中, 将可以实现另一种 D2D通信模式, 该 通信模式下终端之间允许进行一定的直接通信, 一个终端可以通过 D2D方式直接从其它终 端获得信息, 这些直接通信链路可以是在网络控制或者辅助下建立起来的, 终端之间进行
D2D通信的基础是对靠近的终端进行发现。
如附图 lb所示, 在核心网 (CN ) 的控制下演进型基站 (eNodeB , 筒称 e B )分别与
UE1、 UE2建立上 /下行通信链路(Uplink/Downlink ) 以对 UE1、 UE2进行资源配置, 资源 配置后的两个 UE可以基于资源配置信息进行 D2D通信。
可见, 现有技术中蜂窝系统中并不支持 UE之间通过 D2D方式进行直接通信, 而能够使 得蜂窝系统支持 UE之间的 D2D通信模式的一个必要条件就是 D2D双方必须提前获得 D2D 资源配置信息。 发明内容 本发明提供一种 D2D资源获取方法、 设备及系统, 用以提供一种通过系统广播方式通 知 D2D资源配置信息的方式, 实现 UE之间的 D2D通信。
本发明实施例提供的具体技术方案如下:
一种设备到设备 D2D资源获取方法, 包括:
用户设备 UE接收预定义的系统广播消息;
所述 UE获取所述系统广播消息中携带的 D2D资源配置信息并保存,所述 D2D资源配置 信息包括信道配置信息以及共享所述 D2D资源配置信息的公共陆地移动网 PLMN标识列 表。
一种用户设备, 包括:
接收单元, 用于接收预定义的系统广播消息;
获取单元, 用于获取所述系统广播消息中携带的 D2D资源配置信息并保存, 所述 D2D 资源配置信息包括信道配置信息以及共享所述 D2D资源配置信息的公共陆地移动网 PLMN 标识列表。
一种设备到设备 D2D资源获取系统, 包括:
网络侧设备, 用于向用户设备 UE发送预定义的系统广播消息, 所述系统广播消息中携 带有 D2D资源配置信息, 所述 D2D资源配置信息包括信道配置信息以及共享所述 D2D资源 配置信息的公共陆地移动网 PLMN标识列表;
用户设备 UE, 用于接收所述系统广播消息, 获取所述系统广播消息中携带的 D2D资源 配置信息并保存。
一种用户设备, 包括:
收发器, 用于接收系统广播消息;
处理器, 用于获取所述收发器接收到的所述系统广播消息中携带的 D2D资源配置信息 并保存, 所述 D2D资源配置信息包括信道配置信息以及共享所述 D2D资源配置信息的公共 陆地移动网 PLMN标识列表;
存储器, 用于存储所述处理器获取到的 D2D资源配置信息。
基于上述技术方案, 本发明实施例中, 通过预定义系统广播消息, 在该系统广播消息 中携带 D2D资源配置信息, UE在接收到该系统广播消息后, 获取该系统广播消息中携带的 D2D资源配置信息并保存, 从而使得 UE根据保存的 D2D资源信息进行 D2D通信, 实现了通 过系统广播方式通知 UE的 D2D资源配置信息。 附图说明 图 1 a为现有技术中釆用集中控制方式的网络系统架构示意图;
图 lb为现有技术中对 UE配置实现 D2D通信的网络系统架构示意图; 图 2为本发明实施例中 D2D资源获取的方法流程图;
图 3为本发明实施例中以 PLMN为单位的生效范围示意图;
图 4为本发明实施例中判断 D2D公共资源配置信息有效性的流程图;
图 5为本发明实施例中以小区为单位的生效范围示意图;
图 6为本发明实施例中另一判断 D2D公共资源配置信息有效性的流程图;
图 7为本发明实施例中以 D2D区域为单位的生效范围示意图;
图 8为本发明实施例中另一判断 D2D公共资源配置信息有效性的流程图;
图 9为本发明实施例中用户设备结构示意图;
图 10为本发明实施例中 D2D资源获取系统架构示意图;
图 11为本发明另一实施例中的用户设备结构示意图。 具体实施方式 为了实现通过系统广播方式通知 UE的 D2D资源配置信息, 以实现 UE之间的 D2D通信, 本发明实施例提供了一种 D2D资源获取方法、 设备及系统。
下面结合附图对本发明优选的实施方式进行详细说明。
如附图 2所示, 本发明实施例中, D2D资源获取的详细方法流程如下:
步骤 201: UE接收预定义的系统广播消息。
步骤 202: UE获取该系统广播消息中携带的 D2D资源配置信息并保存, 该 D2D资源配 置信息包括信道配置信息以及共享该 D2D资源配置信息(如 D2D通信使用的时间和 /或频率 资源指示, 调制编码方式, 最大传输功率, 使用天线端口等一系列信息) 的公共陆地移动 网 (Public Land Mobile Network, PLMN )标识列表。
本发明实施例中, 该预定义的系统广播消息可以是预定义的用于通知 D2D公共资源配 置信息的系统广播消息, 也可以是预定义的用于通知 D2D专用资源配置信息的系统广播消 息。
其中, D2D公共资源配置信息适用于 D2D通信的发送过程和接收过程, 即该 D2D公共 资源配置信息可以用于 D2D通信中的发送端 UE,也可以用于 D2D通信中的接收端 UE; D2D 专用资源配置信息仅适用于 D2D通信的接收过程, 即该 D2D专用资源配置信息仅适用于接 收端 UE。
其中,在系统广播消息为预定义的第一系统广播消息时, UE获取第一系统广播消息中 携带的 D2D公共资源配置信息, 该 D2D公共资源配置信息包括 D2D公共信道配置信息以及 共享该 D2D公共资源配置信息的 PLMN标识列表。
本实施例中, D2D公共信道配置信息包括但不限于以下信息中的一种或任意组合: 时 隙及频率层的配置信息、 发送功率信息、 调制编码信息。
其中, 发送功率信息用于限制 UE进行 D2D通信过程中的最大发射功率; 调制编码信息 用于控制 UE发送或解调 D2D发现(D2D Discovery ) 消息所使用的调制编码方式; 时隙及 频率层的配置信息用于指示 D2D公共信道所使用的物理层时隙及频率资源。
具体地, UE在初始接入网络的过程中, 读取该第一系统广播消息获得 D2D公共资源配 置信息并保存。
其中,在系统广播消息为预定义的第二系统广播消息时, UE获取第二系统广播消息中 携带的 D2D专用资源配置信息, 该 D2D专用资源配置信息包括 D2D专用信道配置信息以及 共享该 D2D专用资源配置信息的 PLMN标识列表。
本实施例中, D2D专用信道配置信息包括但不限于以下信息中的一种或任意组合: 时 隙及频率层配置信息和调制编码信息。
其中, 调制编码信息用于通知 UE解调 D2D发现消息时使用的调制编码方式, 时隙及频 率层配置用于指示 D2D专用信道所使用的物理层时隙及频率资源。
具体地, UE在初始接入网络的过程中, 读取第二系统广播消息获得 D2D专用资源配置 信息。
本实施例中, 定义第一系统广播消息为新的系统消息块(New SIB ), 定义第二系统广 播消息为新的系统消息块 2 ( New SIB2 )。
较佳地, UE获取系统广播消息中携带的 D2D资源配置信息后, 判断 UE当前注册的 PLMN的标识是否属于 D2D资源配置信息携带的 PLMN标识列表, 确定 UE当前注册的 PLMN的标识属于该 PLMN标识列表时, 确定该 UE满足成功接入蜂窝网络的前提条件, 确 定 D2D资源配置信息有效。
在 UE进行 D2D功能的过程中, 考虑到 UE的移动性, UE地理位置的变化, 可能导致 UE 在蜂窝网络中的服务小区、 为 UE所在的预设的 D2D区域或者为 UE服务的 PLMN发生变化, 以下针对 UE在蜂窝网络移动的过程中,对 D2D资源持续有效性的判断方式提出三个具体实 施例。
D2D资源配置信息的有效范围可以是以 PLMN网络为单位生效, 也可以是以小区为单 位生效, 以下通过两个具体实施例, 分别对两种生效单位下, UE判断 D2D资源配置信息有 效性的过程进行说明。
第一具体实施例中, 如附图 3所示, D2D资源配置信息以 PLMN网络为单位生效的情况 下, UE判断 D2D公共资源配置信息有效性的具体过程如附图 4所示:
步骤 401 : UE初始接入网络的过程中, 读取 New SIB并获得其携带的公共资源配置信 息并保存, 即 D2D公共信道配置信息和共享该 D2D公共资源配置信息的 PLMN标识列表; 步骤 402: UE判断其当前注册的 PLMN的标识是否属于该 PLMN标识列表,在确定属于 该 PLMN标识列表时, 确定该 UE满足成功接入蜂窝网络的前提条件, 确定该 New SIB中携 带的公共资源配置信息对该 UE有效;
步骤 403: UE在当前注册的 PLMN管理的各小区间切换时, UE维持保存的公共资源配 置信息始终有效。
该具体实施例为以公共资源配置信息为例, 对于专用资源配置信息以 PLMN网络为单 位生效的情况下, UE判断 D2D专用资源配置信息有效性的具体过程与此过程相同, 此处不 再赘述。
第二具体实施例中, 如附图 5所示, D2D资源配置信息以小区为单位生效的情况下,
UE判断 D2D公共资源配置信息有效性的具体过程如附图 6所示:
步骤 601 : UE初始接入网络的过程中, 读取 New SIB并获得其携带的公共资源配置信 息并保存, 即 D2D公共信道配置信息和共享该公共资源配置信息的 PLMN标识列表;
步骤 602: UE判断其当前注册的 PLMN的标识是否属于该 PLMN标识列表, 在 UE确定 属于该 PLMN标识列表时, 确定该 UE满足成功接入蜂窝网络的前提条件, 确定该 New SIB 中携带的公共资源配置信息对该 UE有效;
步骤 603: UE在当前注册的 PLMN管理的各小区间切换时, UE切换到一个新的小区后, 读取切换后的小区的 New SIB中携带的公共资源配置信息, 并更新本地保存的公共资源配 置信息。
该具体实施例为以公共资源配置信息为例, 对于专用资源配置信息以小区为单位生效 的情况下, UE判断 D2D专用资源配置信息有效性的具体过程与此过程相同,此处不再赘述。
本发明实施例还提出了 D2D区域(D2D Area )的概念,每个 D2D Area对应设置一个 D2D 区域标识(D2D Area ID ), 在特定的 D2D Area内, D2D资源配置信息有效。
该 D2D Area包括至少一个小区, 在其包括多个小区时, 该多个小区可以是不同类型的 小区, 例如, 可以是宏小区、 微微蜂窝 (Pico )小区、 家庭基站(Femto )小区等, 该多个 小区可以是属于同一个 PLMN, 也可以是属于不同的 PLMN。 实际应用中, 由运营商根据 实际需要配置 D2D Area包含任意多个小区。
其中, 可以分别为 D2D公共资源配置信息和专用资源配置信息设置相互独立的 D2D Area。
本实施例中, 通知 UE当前所处的 D2D Area的方式如下:
第一种实现方式中, 在 New SIB中携带 D2D区域标识, 该 D2D区域标识用于指示 UE当 前所在的 D2D区域, 该 D2D区域覆盖至少一个小区。
具体地, UE获取 New SIB中携带的公共资源配置信息时, 读取 New SIB获得 D2D区域 标识并保存。
第二种实现方式中, 在 New SIB2中携带 D2D区域标识, 该 D2D区域标识用于指示 UE 当前所在的 D2D区域, 该 D2D区域覆盖至少一个小区。
具体地, UE获取 New SIB2中携带的 D2D资源配置信息时, 读取 New SIB2获得 D2D区 域标识并保存。
第三种实现方式中, 通过现有的系统消息块类型 ( System Information Block Type ) 1 , 筒称 SIB 1 , 通知 UE当前所处的 D2D Area。
具体地, UE接收 SIB1 , 获取 SIB1中携带的 D2D区域标识并保存, 该 D2D区域标识用于 表征 UE当前所在的 D2D区域, 该 D2D区域覆盖至少一个小区。
该实现方式中, UE移动到一个新的小区后, 在接收到完整的 SIB1消息后, 即可根据该 D2D Area ID判断自身是否移动到了新的 D2D Area, 如果 UE没有移动到新的 D2D Area, 则 UE之前保存的 D2D配置信息仍然有效, 不需要读取移动后的小区的 New SIB。
基于此, 第三具体实施例中还提供了一种 D2D资源配置信息以 D2D Area为单位生效 时, UE判断 D2D资源配置信息有效的具体过程。
第三具体实施例中, 如附图 7所示, D2D资源配置信息以 D2D Area为单位生效的情况 下, UE判断 D2D公共资源配置信息有效性的具体过程如附图 8所示:
步骤 801 : UE初始接入网络的过程中, 读取 New SIB并获得其携带的公共资源配置信 息并保存, 即 D2D公共信道配置信息和共享该 D2D公共资源配置信息的 PLMN标识列表; 步骤 802: UE判断其当前注册的 PLMN的标识是否属于获取的该 PLMN标识列表, 在 UE确定属于该 PLMN标识列表时, 确定该 New SIB中携带的 D2D公共资源配置信息对该 UE 有效, UE读取 SIB1或 New SIB中携带的 D2D Area ID并保存;
步骤 803: UE在当前注册的 PLMN管理的各小区间切换时, UE每次切换到一个新的小 区后, 读取切换后的小区的 SIB1或 New SIB获取该小区被配置的 D2D Area ID, 判断该切换 后的小区被配置的 D2D Area ID是否与之前保存的 D2D Area ID相同, 若相同, 则 UE并未移 动到新的 D2D Area, 若不相同, 则确定 UE移动到了新的 D2D Area, 获取切换后的小区的 New SIB中携带的 D2D公共资源配置信息, 并釆用该 D2D公共资源配置信息更新本地保存 的 D2D公共资源配置信息, 以及釆用切换后的小区被配置的 D2D Area ID更新 UE本地保存 的 D2D Area ID。
该具体实施例为以 D2D公共资源配置信息为例, 对于 D2D专用资源配置信息以 D2D Area为单位生效的情况下, UE当前所处的 D2D Area可以从 SIB1或 New SIB2获得, UE判断 D2D专用资源配置信息有效性的具体过程与此过程相同, 此处不再赘述。
其中,在 D2D公共资源配置信息和 D2D专用资源配置信息设置相互独立的 D2D Area时,
UE从 New SIB中读取公共资源配置信息的 D2D Area ID, 从 New SIB2中读取专用资源配置 信息的 D2D Area ID; 在 D2D公共资源配置信息和专用资源配置信息设置相互相同的 D2D Area时, UE从 New SIB、 SIB 1或 New SIB2中读取公共资源配置信息的 D2D Area ID,从 New SIB、 SIB1或 New SIB2中读取专用资源配置信息的 D2D Area ID。
实际应用中,预先配置 UE的 D2D公共资源配置信息和 D2D专用资源配置信息的生效单 位为以上提供的三种方式中的任意一种, UE在小区间切换时,根据预先配置的生效单位进 行相应的处理。
基于同一发明构思, 本发明实施例还提供了一种用户设备(UE ), 该用户设备的具体 实施可参见上述方法中 UE的实施, 重复之处不再赘述, 如附图 9所示, 该用户设备主要包 括以下单元:
接收单元 901 , 用于接收预定义的系统广播消息;
获取单元 902, 用于获取该系统广播消息中携带的 D2D资源配置信息并保存, 该 D2D 资源配置信息包括信道配置信息以及共享该 D2D资源配置信息的公共陆地移动网 PLMN标 识列表。
其中, 获取单元具体用于: 在预定义的系统广播消息为第一系统广播消息时, 获取第 一系统广播消息中携带的 D2D公共资源配置信息, 该 D2D公共资源配置信息包括 D2D公共 信道配置信息以及共享该 D2D公共资源配置信息的 PLMN标识列表。
具体地, 获取单元用于在用户设备初始接入网络的过程中, 读取第一系统广播消息获 得 D2D公共资源配置信息。
其中, 获取单元具体用于: 在预定义的系统广播消息为第二系统广播消息时, 获取第 二系统广播消息中携带的 D2D专用资源配置信息, 该 D2D专用资源配置信息包括 D2D专用 信道配置信息以及共享该 D2D专用资源配置信息的 PLMN标识列表。
具体地, 在用户设备初始接入网络的过程中, 读取第二系统广播消息获得 D2D专用资 源配置信息。
其中, 获取单元还用于在获取预定义的系统广播消息中携带的 D2D资源配置信息后, 确定当前注册的 PLMN的标识属于共享该 D2D资源配置信息的 PLMN标识列表时, 确定该 D2D资源配置信息有效。
具体地, 获取单元还用于: 若 D2D资源配置信息以 PLMN为单位生效, 当用户设备在 当前注册的 PLMN管理的各小区间切换时, 维持保存的 D2D资源配置信息有效。
具体地, 获取单元还用于: 若 D2D资源配置信息以小区为单位生效, 当用户设备在当 前注册的 PLMN管理的各小区间切换时, 读取切换后的小区的系统广播消息中携带的 D2D 资源配置信息, 并更新本地保存的 D2D资源配置信息。
其中, 获取单元还用于: 当第一系统广播消息中包括 D2D区域标识时, 读取第一系统 广播消息获得 D2D区域标识并保存, 该 D2D区域标识用于指示 UE当前所在的 D2D区域, 该 D2D区域覆盖至少一个小区。
其中, 获取单元还用于: 当第二系统广播消息中包括 D2D区域标识时, 读取第二系统 广播消息获得 D2D区域标识并保存, 该 D2D区域标识用于指示 UE当前所在的 D2D区域, 该 D2D区域覆盖至少一个小区。
其中, 获取单元还用于:
接收 SIB 1 , 获取 SIB 1中携带的 D2D区域标识并保存, 该 D2D区域标识用于表征所述 UE 当前所在的 D2D区域, 所述 D2D区域覆盖至少一个小区。
其中, 获取单元还用于:
在 D2D资源配置信息以 D2D区域为单位生效时, 获取系统广播消息中携带的 D2D资源 配置信息后, 确定当前注册的 PLMN的标识属于共享 D2D资源配置信息的 PLMN标识列表; 当用户设备在当前注册的 PLMN管理的各小区间切换时, 获取切换后的小区的 D2D区 域标识, 确定该切换后的小区的 D2D区域标识与本地保存的 D2D区域标识不相同时, 获取 切换后的小区的系统广播消息中携带的 D2D资源配置信息, 并更新本地保存的 D2D资源配 置信息以及 D2D区域标识。
基于同一发明构思, 本发明实施例还提供了一种 D2D资源获取系统, 该系统的具体实 施可参见上述方法的描述, 重复之处不再赘述, 如附图 10所示, 该系统主要包括:
网络侧设备 1001 , 用于向 UE发送预定义的系统广播消息, 该系统广播消息中携带有
D2D资源配置信息, 该 D2D资源配置信息包括信道配置信息以及共享该 D2D资源配置信息 的公共陆地移动网 PLMN标识列表;
UE1002, 用于接收系统广播消息, 获取该系统广播消息中携带的 D2D资源配置信息并 保存。
基于同一发明构思, 本发明实施例还提供了一种用户设备(UE ), 该用户设备的具体 实施可参见上述方法中 UE的实施, 重复之处不再赘述, 如附图 11所示, 该用户设备主要包 括以下模块: 收发器 1101、 处理器 1102、 存储器 1103 , 各模块的功能如下所述:
收发器 1101 , 用于接收系统广播消息;
处理器 1102, 用于获取收发器 1101接收到的所述系统广播消息中携带的 D2D资源配置 信息并保存, 所述 D2D资源配置信息包括信道配置信息以及共享所述 D2D资源配置信息的 公共陆地移动网 PLMN标识列表;
存储器 1103 , 用于存储处理器 1102获取到的 D2D资源配置信息。
具体地,收发器 1101接收到的系统广播消息为第一系统广播消息;相应的,处理器 1102 获取收发器 1101接收到的第一系统广播消息中携带的 D2D公共资源配置信息, 所述 D2D公 共资源配置信息包括 D2D公共信道配置信息以及共享所述 D2D公共资源配置信息的 PLMN 标识列表。 其中, 处理器 1102可在所述用户设备初始接入网络的过程中, 通过读取收发器 1101接收到的第一系统广播消息获得所述 D2D公共资源配置信息。
具体地,收发器 1101接收到的系统广播消息为第二系统广播消息;相应的,处理器 1102 可获取收发器 1101接收到的所述第二系统广播消息中携带的 D2D专用资源配置信息, 所述 D2D专用资源配置信息包括 D2D专用信道配置信息以及共享所述 D2D专用资源配置信息的 PLMN标识列表。 其中, 处理器 1102可在所述用户设备初始接入网络的过程中, 通过读取 收发器 1101接收到的第二系统广播消息获得所述 D2D专用资源配置信息。
具体地, 处理器 1102可获取所述用户设备在初始接入网络的过程中通过收发器 1101接 收的系统广播消息中携带的所述 D2D资源配置信息后, 若确定当前注册的 PLMN的标识属 于所述 D2D资源配置信息中的 PLMN标识列表时, 确定所述 D2D资源配置信息有效, 并保 存确定为有效的所述 D2D资源配置信息。
进一步的, 处理器 1102还用于: 若所述 D2D资源配置信息以 PLMN为单位生效, 则在 所述当前注册的 PLMN管理的各小区间切换时, 维持本地保存的 D2D资源配置信息有效; 或者, 若所述 D2D资源配置信息以小区为单位生效, 则在所述当前注册的 PLMN管理的各 小区间切换时, 读取切换后的小区的系统广播消息中携带的 D2D资源配置信息, 并更新本 地保存的 D2D资源配置信息。
上述各用户设备中, 收发器 1101接收到的系统广播消息中还包括: D2D区域标识, 所 述 D2D区域标识用于通知所述用户设备当前所在的 D2D区域, 所述 D2D区域覆盖至少一个 小区; 相应的, 处理器 1102还可在获取所述系统广播消息中携带的 D2D资源配置信息时, 读取所述系统广播消息获得所述 D2D区域标识并保存。 其中, 当所述 D2D资源配置信息以 D2D区域为单位生效时, 处理器 1102可获取所述用户设备在初始接入网络的过程中通过收 发器 1101接收的系统广播消息中携带的 D2D资源配置信息后, 若确定当前注册的 PLMN的 标识属于当前接收到的 D2D资源配置信息中的 PLMN标识列表时, 确定所述当前接收到的 D2D资源配置信息有效, 并保存确定为有效的 D2D资源配置信息; 当所述用户设备在当前 注册的 PLMN管理的各小区间切换时, 根据切换后的小区的系统广播消息中携带的 D2D区 域标识, 若确定所述切换后的小区的系统广播消息中携带的 D2D区域标识与本地保存的 D2D区域标识不相同, 则获取所述切换后的小区的系统广播消息中携带的 D2D资源配置信 息, 并更新本地保存的 D2D资源配置信息以及 D2D区域标识。
基于上述技术方案, 本发明实施例中, 通过预定义系统广播消息, 在该系统广播消息 中携带 D2D资源配置信息, UE在接收到该系统广播消息后, 获取该系统广播消息中携带的 D2D资源配置信息并保存, 从而使得 UE根据保存的 D2D资源信息进行 D2D通信, 实现了通 过系统广播方式通知 UE的 D2D资源配置信息。
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, 本发明可釆用完全硬件实施例、 完全软件实施例、 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 可用存储介盾 (包括但不限于磁盘存储器、 CD-ROM、 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, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 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 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。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造性概 念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
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、 一种设备到设备 D2D资源获取方法, 其特征在于, 包括:
用户设备 UE接收系统广播消息;
所述 UE获取所述系统广播消息中携带的 D2D资源配置信息并保存,所述 D2D资源配置 信息包括信道配置信息以及共享所述 D2D资源配置信息的公共陆地移动网 PLMN标识列 表。
2、 如权利要求 1所述的方法, 其特征在于, 所述系统广播消息为第一系统广播消息, 所述 UE获取所述系统广播消息中携带的 D2D资源配置信息, 具体为:
所述 UE获取所述第一系统广播消息中携带的 D2D公共资源配置信息,所述 D2D公共资 源配置信息包括 D2D公共信道配置信息以及共享所述 D2D公共资源配置信息的 PLMN标识 列表。
3、 如权利要求 2所述的方法, 其特征在于, 所述 UE获取所述系统广播消息中携带的 D2D资源配置信息, 具体包括:
所述 UE在初始接入网络的过程中,通过读取所述第一系统广播消息获得所述 D2D公共 资源配置信息。
4、如权利要求 1所述的方法, 其特征在于, 所述系统广播消息为第二系统广播消息时, 所述 UE获取所述系统广播消息中携带的 D2D资源配置信息, 具体为:
所述 UE获取所述第二系统广播消息中携带的 D2D专用资源配置信息,所述 D2D专用资 源配置信息包括 D2D专用信道配置信息以及共享所述 D2D专用资源配置信息的 PLMN标识 列表。
5、 如权利要求 4所述的方法, 其特征在于, 所述 UE获取所述系统广播消息中携带的 D2D资源配置信息, 具体包括:
所述 UE在初始接入网络的过程中,通过读取所述第二系统广播消息获得所述 D2D专用 资源配置信息。
6、 如权利要求 3或 5所述的方法, 其特征在于, 所述 UE获取所述系统广播消息中携带 的 D2D资源配置信息并保存, 包括:
所述 UE获取所述 UE在初始接入网络的过程中接收的系统广播消息中携带的所述 D2D 资源配置信息后, 若确定当前注册的 PLMN的标识属于所述 D2D资源配置信息中的 PLMN 标识列表时, 确定所述 D2D资源配置信息有效, 并保存确定为有效的所述 D2D资源配置信 息。
7、 如权利要求 1-6任一项所述的方法, 其特征在于, 还包括:
若所述 D2D资源配置信息以 PLMN为单位生效, 则所述 UE在所述当前注册的 PLMN管 理的各小区间切换时, 维持本地保存的 D2D资源配置信息有效; 或者
若所述 D2D资源配置信息以小区为单位生效, 则所述 UE在所述当前注册的 PLMN管理 的各小区间切换时, 读取切换后的小区的系统广播消息中携带的 D2D资源配置信息, 并更 新本地保存的 D2D资源配置信息。
8、如权利要求 1-6任一项所述的方法,其特征在于, 所述系统广播消息中还包括: D2D 区域标识, 所述 D2D区域标识用于通知所述 UE当前所在的 D2D区域, 所述 D2D区域覆盖至 少一个小区;
所述 UE获取所述系统广播消息中携带的 D2D资源配置信息时, 还包括:
所述 UE读取所述系统广播消息获得所述 D2D区域标识并保存。
9、 如权利要求 8所述的方法, 其特征在于, 所述 D2D资源配置信息以 D2D区域为单位 生效;
UE接收系统广播消息, 获取所述系统广播消息中携带的 D2D资源配置信息并保存, 包 括:
所述 UE获取所述 UE在初始接入网络的过程中接收的系统广播消息中携带的 D2D资源 配置信息后, 若确定当前注册的 PLMN的标识属于当前接收到的 D2D资源配置信息中的 PLMN标识列表时, 确定所述当前接收到的 D2D资源配置信息有效, 并保存确定为有效的 D2D资源配置信息;
所述方法还包括:
所述 UE在当前注册的 PLMN管理的各小区间切换时, 根据切换后的小区的系统广播消 息中携带的 D2D区域标识, 若确定所述切换后的小区的系统广播消息中携带的 D2D区域标 识与本地保存的 D2D区域标识不相同, 则获取所述切换后的小区的系统广播消息中携带的 D2D资源配置信息, 并更新本地保存的 D2D资源配置信息以及 D2D区域标识。
10、 一种用户设备, 其特征在于, 包括:
接收单元, 用于接收预定义的系统广播消息;
获取单元, 用于获取所述系统广播消息中携带的 D2D资源配置信息并保存, 所述 D2D 资源配置信息包括信道配置信息以及共享所述 D2D资源配置信息的公共陆地移动网 PLMN 标识列表。
11、 如权利要求 10所述的用户设备, 其特征在于, 所述获取单元具体用于: 在所述系统广播消息为预定义的第一系统广播消息时, 获取所述第一系统广播消息中 携带的 D2D公共资源配置信息, 所述 D2D公共资源配置信息包括 D2D公共信道配置信息以 及共享所述 D2D公共资源配置信息的 PLMN标识列表。
12、 如权利要求 11所述的用户设备, 其特征在于, 所述获取单元具体用于: 在用户设备初始接入网络的过程中, 读取所述第一系统广播消息获得 D2D公共资源配 置信息。
13、 如权利要求 10所述的用户设备, 其特征在于, 所述获取单元具体用于: 在所述系统广播消息为预定义的第二系统广播消息时, 获取所述第二系统广播消息中 携带的 D2D专用资源配置信息, 所述 D2D专用资源配置信息包括 D2D专用信道配置信息以 及共享所述 D2D专用资源配置信息的 PLMN标识列表。
14、 如权利要求 13所述的用户设备, 其特征在于, 所述获取单元具体用于: 在用户设备初始接入网络的过程中, 读取所述第二系统广播消息获得所述 D2D专用资 源配置信息。
15、 如权利要求 10-14任一项所述的用户设备, 其特征在于, 所述获取单元还用于在获 取所述系统广播消息中携带的 D2D资源配置信息后, 确定当前注册的 PLMN的标识属于所 述 PLMN标识列表时, 确定所述 D2D资源配置信息有效。
16、 如权利要求 15所述的用户设备, 其特征在于, 所述获取单元还用于:
若所述 D2D资源配置信息以 PLMN为单位生效, 当用户设备在所述当前注册的 PLMN 管理的各小区间切换时, 维持所述 D2D资源配置信息有效。
17、 如权利要求 15所述的用户设备, 其特征在于, 所述获取单元还用于:
若所述 D2D资源配置信息以小区为单位生效, 当用户设备在所述当前注册的 PLMN管 理的各小区间切换时, 读取切换后的小区的系统广播消息中携带的 D2D资源配置信息, 并 更新本地保存的 D2D资源配置信息。
18、 如权利要求 12所述的用户设备, 其特征在于, 所述获取单元还用于:
当所述第一系统广播消息中包括 D2D区域标识时, 读取所述第一系统广播消息获得所 述 D2D区域标识并保存, 所述 D2D区域标识用于指示用户设备当前所在的 D2D区域, 所述 D2D区域覆盖至少一个小区。
19、 如权利要求 14所述的用户设备, 其特征在于, 所述获取单元还用于:
当所述第二系统广播消息中包括 D2D区域标识时, 读取所述第二系统广播消息获得所 述 D2D区域标识并保存, 所述 D2D区域标识用于指示所述 UE当前所在的 D2D区域, 所述 D2D区域覆盖至少一个小区。
20、 如权利要求 10所述的用户设备, 其特征在于, 所述获取单元还用于:
接收系统消息块类型 SIB 1 , 获取所述 SIB 1中携带的 D2D区域标识并保存, 所述 D2D区 域标识用于表征所述 UE当前所在的 D2D区域, 所述 D2D区域覆盖至少一个小区。
21、 如权利要求 18、 19或 20所述的用户设备, 其特征在于, 所述获取单元还用于: 在所述 D2D资源配置信息以 D2D区域为单位生效时, 获取所述系统广播消息中携带的 D2D资源配置信息后, 确定当前注册的 PLMN的标识属于所述 PLMN标识列表;
当用户设备在所述当前注册的 PLMN管理的各小区间切换时, 获取切换后的小区的 D2D区域标识, 确定所述切换后的小区的 D2D区域标识与本地保存的 D2D区域标识不相同 时, 获取所述切换后的小区的所述系统广播消息中携带的 D2D资源配置信息, 并更新本地 保存的 D2D资源配置信息以及 D2D区域标识。
22、 一种设备到设备 D2D资源获取系统, 其特征在于, 包括:
网络侧设备, 用于向用户设备 UE发送预定义的系统广播消息, 所述系统广播消息中携 带有 D2D资源配置信息, 所述 D2D资源配置信息包括信道配置信息以及共享所述 D2D资源 配置信息的公共陆地移动网 PLMN标识列表;
用户设备 UE, 用于接收所述系统广播消息, 获取所述系统广播消息中携带的 D2D资源 配置信息并保存。
23、 一种用户设备, 其特征在于, 包括:
收发器, 用于接收系统广播消息;
处理器, 用于获取所述收发器接收到的所述系统广播消息中携带的 D2D资源配置信息 并保存, 所述 D2D资源配置信息包括信道配置信息以及共享所述 D2D资源配置信息的公共 陆地移动网 PLMN标识列表;
存储器, 用于存储所述处理器获取到的 D2D资源配置信息。
24、 如权利要求 23所述的用户设备, 其特征在于, 所述收发器接收到的系统广播消息 为第一系统广播消息;
所述处理器具体用于, 获取所述收发器接收到的第一系统广播消息中携带的 D2D公共 资源配置信息, 所述 D2D公共资源配置信息包括 D2D公共信道配置信息以及共享所述 D2D 公共资源配置信息的 PLMN标识列表。
25、 如权利要求 24所述的用户设备, 其特征在于, 所述处理器具体用于, 在所述用户 设备初始接入网络的过程中, 通过读取所述收发器接收到的第一系统广播消息获得所述 D2D公共资源配置信息。
26、 如权利要求 23所述的用户设备, 其特征在于, 所述收发器接收到的系统广播消息 为第二系统广播消息;
所述处理器具体用于, 获取所述收发器接收到的所述第二系统广播消息中携带的 D2D 专用资源配置信息, 所述 D2D专用资源配置信息包括 D2D专用信道配置信息以及共享所述 D2D专用资源配置信息的 PLMN标识列表。
27、 如权利要求 26所述的用户设备, 其特征在于, 所述处理器具体用于, 在所述用户 设备初始接入网络的过程中, 通过读取所述收发器接收到的第二系统广播消息获得所述
D2D专用资源配置信息。
28、 如权利要求 25或 27所述的用户设备, 其特征在于, 所述处理器具体用于, 获取所 述用户设备在初始接入网络的过程中通过所述收发器接收的系统广播消息中携带的所述 D2D资源配置信息后, 若确定当前注册的 PLMN的标识属于所述 D2D资源配置信息中的 PLMN标识列表时, 确定所述 D2D资源配置信息有效, 并保存确定为有效的所述 D2D资源 配置信息。
29、 如权利要求 23-28任一项所述的用户设备, 其特征在于, 所述处理器还用于: 若所述 D2D资源配置信息以 PLMN为单位生效, 则在所述当前注册的 PLMN管理的各 小区间切换时, 维持本地保存的 D2D资源配置信息有效; 或者
若所述 D2D资源配置信息以小区为单位生效, 则在所述当前注册的 PLMN管理的各小 区间切换时, 读取切换后的小区的系统广播消息中携带的 D2D资源配置信息, 并更新本地 保存的 D2D资源配置信息。
30、 如权利要求 23-28任一项所述的用户设备, 其特征在于, 所述收发器接收到的系统 广播消息中还包括: D2D区域标识, 所述 D2D区域标识用于通知所述用户设备当前所在的 D2D区域, 所述 D2D区域覆盖至少一个小区;
所述处理器还用于, 在获取所述系统广播消息中携带的 D2D资源配置信息时, 读取所 述系统广播消息获得所述 D2D区域标识并保存。
31、 如权利要求 30所述的方法, 其特征在于, 所述 D2D资源配置信息以 D2D区域为单 位生效;
所述处理器具体用于, 获取所述用户设备在初始接入网络的过程中通过所述收发器接 收的系统广播消息中携带的 D2D资源配置信息后, 若确定当前注册的 PLMN的标识属于当 前接收到的 D2D资源配置信息中的 PLMN标识列表时, 确定所述当前接收到的 D2D资源配 置信息有效, 并保存确定为有效的 D2D资源配置信息;
当所述用户设备在当前注册的 PLMN管理的各小区间切换时, 根据切换后的小区的系 统广播消息中携带的 D2D区域标识, 若确定所述切换后的小区的系统广播消息中携带的 D2D区域标识与本地保存的 D2D区域标识不相同, 则获取所述切换后的小区的系统广播消 息中携带的 D2D资源配置信息, 并更新本地保存的 D2D资源配置信息以及 D2D区域标识。
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US20150223279A1 (en) 2015-08-06
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