WO2014117369A1 - 通信方法、配置信息处理方法及其装置、通信系统 - Google Patents

通信方法、配置信息处理方法及其装置、通信系统 Download PDF

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Publication number
WO2014117369A1
WO2014117369A1 PCT/CN2013/071218 CN2013071218W WO2014117369A1 WO 2014117369 A1 WO2014117369 A1 WO 2014117369A1 CN 2013071218 W CN2013071218 W CN 2013071218W WO 2014117369 A1 WO2014117369 A1 WO 2014117369A1
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Prior art keywords
communication
configuration information
base station
user equipment
new
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PCT/CN2013/071218
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English (en)
French (fr)
Inventor
常宁娟
徐海博
邱涛
汪巍崴
Original Assignee
富士通株式会社
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Priority to PCT/CN2013/071218 priority Critical patent/WO2014117369A1/zh
Publication of WO2014117369A1 publication Critical patent/WO2014117369A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/23Manipulation of direct-mode connections

Definitions

  • the present invention relates to the field of communications, and in particular, to a communication method, a configuration information processing method, an apparatus thereof, and a communication system. Background technique
  • D2D CD2D (Device to Device) communication is called direct communication between devices and is an emerging technology introduced by the current Long Term Evolution (LTE) system. Similar to Bluetooth technology, D2D communication is a technology that supports short-distance direct communication between user equipment and user equipment. That is, the data services of two user equipments (UEs) in D2D communication can be directly in the core network. Communication between the two UEs or through the base station as a transit site.
  • LTE Long Term Evolution
  • the D2D communication between the UEs needs to be assisted by the base station, such as establishing a D2D connection between the auxiliary UEs, dynamically allocating resources for the D2D communication, etc., in this case, the UE simultaneously
  • Two types of wireless links are maintained: a communication link between the UE and the eNB and a communication link between the UE and the UE.
  • FIG. 1 is a schematic diagram of a D2D link in an LTE network.
  • UE1 and UE2 are in D2D communication, and the communication link between UE1 and eNB is a cellular link, and the link between UE1 and the peer UE2 is called a D2D link.
  • D2D communication is an emerging technology, there is currently no feasible method for how to process D2D communication or related information during user equipment handover or cellular link connection re-establishment.
  • An object of the embodiments of the present invention is to provide a communication method, a configuration information processing method, a device thereof, and a communication system, which can perform ongoing D2D communication or related information during a handover of a user equipment or a reconnection of a cellular link connection. Corresponding processing can reduce the signaling overhead and the energy consumption of the user equipment, and avoid the interference caused by the D2D communication configured before.
  • a communication method comprising: When the Radio Resource Control (RRC) connection re-establishment process is triggered, direct inter-device (D2D) communication, and/or clearing of D2D link related timers and/or counters is stopped.
  • RRC Radio Resource Control
  • D2D direct inter-device
  • a configuration information processing method comprising: releasing, by a user equipment, configuration information of direct (D2D) communication between devices when triggering a radio resource control (RRC) connection re-establishment process.
  • D2D configuration information of direct
  • RRC radio resource control
  • a communication device comprising:
  • a first triggering unit configured to trigger an RRC connection re-establishment process
  • a first processing unit configured to stop D2D communication, and/or clear a D2D link related timer and/or counter after triggering an RRC connection reestablishment procedure.
  • a fourth aspect of the present invention provides a configuration information processing apparatus, where the apparatus includes: a second triggering unit, where the second triggering unit is configured to trigger an RRC connection reestablishment process;
  • an information release unit configured to release configuration information of the D2D communication after triggering the RRC connection re-establishment process.
  • a user equipment comprising the communication device of the third aspect of the embodiment of the present invention, and/or the apparatus of the fourth aspect.
  • a sixth aspect of the present invention provides a configuration information processing method, where the method includes: when a source base station to which a user equipment belongs currently triggers handover, the source base station configures D2D communication configuration information of the user equipment. And reporting information of the D2D communication reported by the user equipment is sent to the target base station.
  • a seventh aspect of the present invention provides a configuration information processing method, where the method includes: receiving, by a target base station, configuration information of D2D communication of a user equipment sent by a source base station, and/or reporting information of D2D communication reported by a user equipment. ;
  • a configuration information processing method includes: receiving, by a user equipment, configuration information of a new D2D communication configured by a target base station and configured by the source base station for the user equipment.
  • a ninth aspect of the embodiments of the present invention provides a configuration information processing apparatus, where the apparatus includes: a first sending unit, where the first sending unit is configured to: when a source base station to which a user equipment belongs currently triggers a handover, The configuration information of the D2D communication of the user equipment and/or the report letter of the D2D communication reported by the user equipment The information is sent to the target base station.
  • a tenth aspect of the embodiments of the present invention provides a base station, the base station comprising the apparatus of the ninth aspect.
  • a configuration information processing apparatus comprising: a second receiving unit, configured to receive configuration information of D2D communication of a user equipment sent by a source base station And/or report information of D2D communication reported by the user equipment;
  • a second processing unit configured to configure configuration information of the new D2D communication according to the configuration information received by the second receiving unit
  • a third sending unit configured to send configuration information of the new D2D communication configured by the second processing unit to the source base station.
  • a twelfth aspect of the embodiments of the present invention provides a base station comprising the apparatus of the eleventh aspect.
  • a thirteenth aspect of the embodiments of the present invention provides a configuration information processing apparatus, where the apparatus includes: a third receiving unit, where the third receiving unit is configured to receive a target base station sent by a source base station to configure the user equipment Configuration information for the new D2D communication.
  • a fourteenth aspect of the embodiments of the present invention there is provided a user equipment comprising the apparatus of the thirteenth aspect.
  • a fifteenth aspect of the embodiments of the present invention provides a communication system, including a base station, wherein the communication system further includes the user equipment of the fifth aspect.
  • a sixteenth aspect of the present invention provides a communication system comprising the source base station of the tenth aspect and the target base station of the twelfth aspect.
  • a seventeenth aspect of the embodiments of the present invention provides a computer readable program, wherein when the program is executed in a communication device or a user device, the program causes a computer to execute in the communication device or user device, for example A communication method according to the first aspect of the embodiments of the present invention.
  • An eighteenth aspect of the embodiments of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the first embodiment of the present invention in a communication device or user equipment The communication method described in the aspect.
  • a nineteenth aspect of the embodiments of the present invention provides a computer readable program, wherein the program causes a computer to process the configuration information when the program is executed in a configuration information processing device or a user device
  • the configuration information processing method as described in the second aspect is performed in the device or the user equipment.
  • a twentieth aspect of the embodiments of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the second aspect in a configuration information processing device or a user device Configuration information processing method.
  • a twenty-first aspect of the present invention provides a computer readable program, wherein when the program is executed in a configuration information processing device or a base station, the program causes a computer to be in the configuration information processing device or The configuration information processing method as described in the sixth aspect is executed in the base station.
  • a twentieth aspect of the embodiments of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute in a configuration information processing apparatus or a base station as described in the sixth aspect Configuration information processing method.
  • a twentieth aspect of the embodiments of the present invention provides a computer readable program, wherein when the program is executed in a configuration information processing device or a user device, the program causes a computer to be in the configuration information processing device or The configuration information processing method as described in the sixth aspect or the seventh aspect is executed in the user equipment.
  • a twentieth aspect of the embodiments of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute in a configuration information processing device or a user device as in the eighth aspect The configuration information processing method described.
  • the ongoing D2D communication or related information may be processed correspondingly during the handover of the user equipment or the re-establishment of the cellular link connection, which may reduce signaling overhead. And the energy consumption of the user equipment, avoiding the interference caused by the D2D communication configured before.
  • the ongoing D2D communication is stopped, the waste of communication resources and UE energy can be avoided, and the interference to other users can be avoided; the related timers and/or counters can be cleared to avoid The timer-related misoperations, and keeping the timer/counter synchronized with the network side, solve the problems in the prior art.
  • 1 is a schematic diagram of a D2D link in an LTE network
  • FIG. 2 is a flowchart of a communication method according to Embodiment 1 of the present invention.
  • Figure 3 is a block diagram showing the structure of a communication device according to a second embodiment of the present invention.
  • Figure 5 is a block diagram showing the configuration of a configuration information processing apparatus according to a sixth embodiment of the present invention.
  • FIG. 6 is a flowchart of a configuration information processing method according to Embodiment 9 of the present invention.
  • FIG. 7 is a flowchart of a configuration information processing method according to Embodiment 10 of the present invention.
  • FIG. 8 is a flowchart of a configuration information processing method according to Embodiment 11 of the present invention.
  • Figure 9 is a block diagram showing the configuration of a configuration information processing apparatus according to Embodiment 12 of the present invention.
  • Figure 10 is a block diagram showing the configuration of a configuration information processing apparatus according to Embodiment 14 of the present invention.
  • Figure 11 is a block diagram showing the configuration of a configuration information processing apparatus according to Embodiment 16 of the present invention.
  • Figure 12 is a flow chart showing a method of processing configuration information in Embodiment 18 of the present invention. detailed description
  • the user equipment UE in the D2D communication will be configured with relevant D2D configuration information, such as a D2D link frequency, a D2D link identifier, a D2D link discovery enable indication, and a D2D link beacon resource.
  • the configuration information is sent by the eNB to the UE, and the UE maintains the link of the D2D communication based on the configuration information, performs measurement on the link of the D2D communication, and performs communication on the link of the D2D communication.
  • D2D communication is an emerging technology introduced by the LTE system, taking the cellular link connection re-establishment process as an example.
  • D2D communication of the LTE network when the UE's cellular link has a problem, When the RRC connection is restored, the UE triggers an RRC connection re-establishment procedure. How to handle the ongoing D2D communication and whether the configured D2D configuration information needs to be released, etc. become the RRC connection re-establishment process. issues that need resolving.
  • the UE's cellular link is interrupted, if the UE continues to use the original D2D communication configuration information, such as D2D discovery enable, the UE continues to perform D2D communication discovery, but if the network side is D2D at this time If the communication load is heavy and cannot support D2D communication, even if the UE finds the peer user equipment that can perform D2D communication, it cannot communicate through D2D mode. The D2D communication performed at this time will bring unnecessary UE energy consumption. Overhead.
  • D2D communication configuration information such as D2D discovery enable
  • the embodiment of the invention provides a communication method, a configuration information processing method, a device thereof, and a communication system, which can perform corresponding D2D communication or related information during a handover of a user equipment or a reconnection of a cellular link connection. It can reduce the signaling overhead and the energy consumption of the user equipment, and avoid the interference caused by the D2D communication configured before.
  • Embodiment 1 of the present invention provides a communication method, including: after a user equipment (UE) triggers a radio resource control (RRC) connection reestablishment process, stopping direct (D2D) communication between devices, and/or clearing a D2D link. Timer and / or counter.
  • RRC radio resource control
  • Fig. 2 is a flow chart showing the communication method of the first embodiment of the present invention. As shown in Figure 2, the method includes:
  • Step 201 The UE triggers an RRC connection re-establishment procedure to restore an RRC connection with the base station.
  • Step 202 stop direct (D2D) communication between devices, and/or clear D2D link related timers and/or counters.
  • D2D stop direct
  • the UE stops the current D2D communication, that is, stops the transmission and reception of data and control signaling on the current D2D link.
  • the D2D link related timer and / or counter clear the D2D link related timer and / or counter, the following examples:
  • timers and counters for D2D link monitoring For example, timers and counters for D2D link monitoring.
  • the base station eNB configures the counters N1, N2 and the timer ⁇ to the UE, when the N1 "unsynchronized" indication occurs on the D2D link, the timer is started, and when the timer expires, the D2D link is determined to occur. If the failure, or the D2D link has two consecutive "synchronous" indications, the D2D link is considered to be automatically restored.
  • a timer for discovery of D2D communication For example, a timer for discovery of D2D communication.
  • the base station eNB configures the timer ⁇ 2 and uses the UE to perform D2D communication discovery, when detecting that the beacon signal strength sent by another user is higher than the gate limit in the timer T2, the D2D communication is sent to the base station. Establish measurement results for request or D2D communication.
  • the above timers and timers are only embodiments of the present invention, and are not limited to the above embodiments.
  • a communication method is provided, after the UE triggers the RRC connection re-establishment process, the ongoing D2D communication is stopped, which avoids waste of communication resources and UE energy and reduces interference to other users;
  • the associated timers and/or counters can be emptied to avoid erroneous operations associated with the timer and to keep the timer/counter synchronized with the network side, thus solving the problems in the prior art.
  • Fig. 3 is a block diagram showing the configuration of a communication apparatus according to a second embodiment of the present invention.
  • the apparatus 300 includes: a first triggering unit 301 and a first processing unit 302.
  • the first triggering unit 301 is configured to trigger an RRC connection reestablishment.
  • the first processing unit 301 is configured to trigger an RRC connection reestablishment process.
  • the D2D communication is stopped, and/or the D2D link related timer and/or counter is cleared.
  • the ongoing D2D communication can be stopped after triggering the RRC connection re-establishment process, thereby avoiding waste of communication resources and UE energy and reducing interference to other users;
  • Related timers and/or counters can avoid erroneous operations associated with the timer and keep the timer/counter synchronized with the network side, solving the problems in the prior art.
  • the embodiment of the present invention provides a user equipment, which includes the communication device described in Embodiment 2, and details are not described herein again.
  • the embodiment 4 of the present invention provides a communication system, which includes the user equipment described in Embodiment 3, after the user equipment triggers the RRC connection re-establishment process, stops the current D2D communication, and/or clears the related timer. And / or counter.
  • the D2D communication, the timer, and the counter are as described in Embodiment 1, and are not described herein again.
  • Step 401 When a user equipment triggers a radio resource control (RRC) connection re-establishment process, releasing configuration information of direct (D2D) communication between devices;
  • RRC radio resource control
  • the configuration information may include one or more types of information:
  • Link index identification of D2D communication frequency used for D2D communication, bandwidth used for D2D communication, D2D communication Radio Network Temporary Identifier (RNTI), cell RNTI (Cel-RNTI) of the peer user equipment, enable indication of D2D communication, common resource configuration of D2D communication, resource allocation of static D2D communication, used Beacon resources or beacon resources of the peer user equipment, measurement configuration of D2D communication, link security algorithm for D2D communication, and security key.
  • RNTI Radio Network Temporary Identifier
  • Cell-RNTI cell RNTI
  • the common resource configuration of the D2D communication may include one or more of the following information:
  • D2D link maximum transmit power D2D link power control parameters, D2D link CP length, physical uplink shared channel (PUSCH) start position of D2D link, demodulation reference signal (DM-RS) configuration, etc.
  • PUSCH physical uplink shared channel
  • DM-RS demodulation reference signal
  • a configuration information processing method for D2D communication can be provided. After the UE triggers the RRC connection re-establishment process, the configuration information of the D2D communication can be released, which can solve the problems in the prior art.
  • the method may further include the following step 403:
  • the D2D communication report is not sent to the re-established cell before receiving the configuration information of the new D2D communication, and the report includes one or more of the following: link measurement result of D2D communication, D2D communication Communication request, communication preference indication of D2D communication.
  • the communication preference indication is: used to indicate whether the UE prefers the D2D communication mode or the traditional cellular communication mode to a service or all services; or is used to support whether the UE supports only the D2D communication mode for one service or all services. .
  • step 403 is an optional step, and in addition, the order of execution of step 402 and step 403 is interchangeable.
  • Fig. 5 is a block diagram showing the configuration of a configuration information processing apparatus according to a sixth embodiment of the present invention.
  • the apparatus 500 includes: a second triggering unit 501 and an information releasing unit 502.
  • the second triggering unit 501 is configured to trigger an RRC connection re-establishment process.
  • the information releasing unit 501 is configured to trigger an RRC connection re-establishment process. Release the configuration information of D2D communication.
  • the content included in the configuration information is as described in Embodiment 5, and details are not described herein again.
  • the apparatus 500 further includes: a connection reestablishing unit 503 and a second processing unit 504, where the connection reestablishing unit 503 is configured to perform RRC connection reestablishment and the connection reestablishment is successful; and the second processing unit 504 is configured to be in the RRC connection.
  • the D2D communication report is not sent to the reconstructed cell until the configuration information of the new D2D communication is received.
  • the report includes one or more of the following: a link measurement result of the D2D communication, a communication request of the D2D communication, and a communication preference indication of the D2D communication.
  • the connection reconstruction unit 503 and the second processing unit 504 are optional components.
  • a configuration information processing apparatus for D2D communication may be provided. After the UE triggers the RRC connection re-establishment process, the configuration information of the D2D communication may be released, and after the connection is successfully re-established, the report of the D2D communication is not reported. The problem of interference and power consumption/signaling overhead caused by D2D communication using the previous configuration when the UE is disconnected from the base station can be avoided.
  • Embodiment 7 of the present invention provides a user equipment, which may include the apparatus described in Embodiment 6, and details are not described herein again.
  • Embodiment 8 of the present invention provides a communication system, which includes the user equipment shown in Embodiment 7.
  • a communication system which includes the user equipment shown in Embodiment 7.
  • the user equipment described in Embodiment 3 and the user equipment described in Embodiment 7 can be used in combination.
  • Figure 6 is a flow chart showing a method of processing configuration information according to Embodiment 9 of the present invention. On the source base station side, as shown in FIG. 6, the method includes:
  • Step 601 When the source base station to which the user equipment belongs currently triggers the handover, the source base station sends the configuration information of the D2D communication of the user equipment and/or the report information of the D2D communication reported by the user equipment to the target base station.
  • the configuration information includes one or more of the following information:
  • a D2D communication enable indication which is used to indicate whether the cell supports D2D communication and/or whether to allow the UE to perform D2D communication information reporting or the like;
  • Measurement configuration of D2D communication including configuration information for measuring a D2D link
  • Link index of D2D communication frequency used for D2D communication; bandwidth used for D2D communication;
  • Resource allocation for semi-static D2D communication including time domain and/or frequency domain resource location information of resource configuration for semi-static D2D communication;
  • the beacon resource used or the beacon resource of the peer user equipment is the beacon resource used or the beacon resource of the peer user equipment
  • the report information includes one or more of the following information: Link measurement results of D2D communication;
  • the communication preference indication of the D2D communication is used to indicate whether the UE prefers the D2D communication mode or the traditional cellular communication mode to a service or all services; or to support whether the UE supports only the D2D communication mode for one service or all services.
  • the configuration information and/or the report information is sent to the target base station by using a handover request message; where the information may be sent through the X2 interface between the source base station and the target base station; or by the mobility management entity through the S1 interface.
  • MME Mobiity Management Entity
  • Step 602 Receive, by the target base station, configuration information of a new D2D communication configured by the target base station according to the received configuration information.
  • the configuration information of the new D2D communication may include returning the source base station in a handover request response message
  • the handover request response message may be sent by the X2 interface between the source eNB and the target eNB, or may be transmitted by the MME through the S1 interface.
  • Step 603 Send configuration information of the received new D2D communication to the user equipment.
  • the source base station may send the user equipment to the user equipment by using a handover command.
  • the source base station may send the D2D configuration information and/or the report information of the user equipment to the target base station, so that the target base station determines new D2D configuration information based on the received configuration information, and may reduce the information. Make the cost.
  • FIG. 7 is a flow chart showing a method of processing configuration information in Embodiment 10 of the present invention. As shown in FIG. 10, the method includes: Step 701: The target base station receives configuration information of the D2D communication of the user equipment sent by the source base station and/or report information of the D2D communication reported by the user equipment.
  • the configuration information and/or the report information are as described in Embodiment 9, and details are not described herein again.
  • Step 702 Configure configuration information of the new D2D communication according to the received configuration information.
  • the target base station when one of the configuration information of the new D2D communication configured by the target base station is the same as the configuration information corresponding to one of the received configuration information, and the existing attribute is Need ON, the The target base station does not include the configuration information that is the same as the configuration information corresponding to the received configuration information in the configuration information of the new D2D communication, where the attribute "Need ON" is used to indicate that the original configuration information is used, that is, the configuration information is provided.
  • the information element (IE) of the attribute if it does not appear in the message, indicates that the original configuration information is used, thereby saving signaling overhead; or
  • the target base station When the target base station does not configure one type of configuration information of the D2D communication and the presence attribute is Need OR to indicate release of the original configuration information, the target base station does not include such configuration information in the configuration information of the new D2D communication, where the attribute " Need OR" is used to indicate the release or stop of the use of the original configuration information, that is, the information element (IE) having the attribute. If it does not appear in the message, it means to release or stop using the original configuration information, thus saving signaling overhead; Or,
  • the target base station When the configuration information of one of the configuration information of the new D2D communication configured by the target base station is different from the configuration information corresponding to one of the received configuration information, the target base station includes such configuration information in the new D2D.
  • Configuration information of communication or,
  • the target base station When the target base station does not configure one type of configuration information of the D2D communication and the presence attribute is Need 0N, and the target base station sets the configuration information to release, the target base station includes the configuration information in the configuration of the new D2D communication.
  • Step 703 Send the configuration information of the new D2D communication to the source base station.
  • the target base station may receive D2D configuration information and/or report information of the user equipment sent by the source base station, and determine new D2D configuration information according to the received configuration information, so that part of the signaling configuration in the handover process may be implemented. , reduce signaling overhead.
  • FIG. 8 is a flowchart of a configuration information processing method according to Embodiment 11 of the present invention. As shown in FIG. 8, the method includes: Step 801: A user equipment receives, by a source base station, configuration information of a new D2D communication configured by a target base station for the user equipment.
  • the configuration information of the new D2D communication is notified to the user equipment by using a handover command, as described in Embodiments 9 and 10, and details are not described herein again.
  • Step 802 applying configuration information of D2D communication
  • the configuration information of the D2D communication may be applied according to the received configuration information of the new D2D communication or the configuration information configured by the source base station for the user equipment; that is, the user equipment combines the received configuration information of the new D2D communication and
  • the saved configuration information of the source base station configuration determines the configuration of applying the new D2D communication. The information is still applied to the saved configuration information.
  • the user equipment applies the saved configuration information of the source base station configuration. For example, when the configuration information of the received new D2D communication does not include a configuration information and the presence attribute of the configuration information is Need OR, the user equipment releases the saved configuration information of the source base station configuration. For example, when the configuration information of the received new D2D communication includes a configuration information and the configuration information is different from the corresponding configuration information configured by the source base station, the user equipment application receives the configuration of the new D2D communication.
  • the user equipment releases the saved configuration information of the source base station configuration.
  • a configuration information processing method for D2D communication in a handover process may be provided.
  • the source base station triggers a handover procedure and sends a handover request message to a target base station
  • configuration information of the D2D communication of the UE and/or the UE may be provided.
  • the reported D2D report information is sent to the target base station, and the target base station can determine new configuration information according to the configuration information, and return to the source base station, so that part of the signaling configuration in the handover process can be implemented, and the signaling overhead is reduced;
  • the source base station sends the configuration information of the new D2D communication configured by the target base station to the UE, so that the UE applies the configuration information of the D2D communication based on the new configuration information and the saved configuration information, thereby solving the problem in the prior art.
  • the storage medium may include: a ROM, a RAM, a magnetic disk, an optical disk, and the like.
  • the embodiment of the invention further provides a configuration information processing device, a user equipment and a base station.
  • a configuration information processing device As described in the examples below. Since the principle of solving the problem by the device, the user equipment, and the base station is similar to the foregoing method based on the device, the user equipment, and the base station, the implementation of the device, the user equipment, and the base station can be referred to the implementation of the method, and the description is not repeated herein.
  • Figure 9 is a block diagram showing the configuration of a configuration information processing apparatus according to a twelfth embodiment of the present invention.
  • the apparatus 900 includes: a first sending unit 901, where the first sending unit 901 is configured to: when the source base station to which the user equipment belongs currently triggers the handover, configuration information and/or user equipment of the D2D communication of the user equipment. Report of reported D2D communication Information is sent to the target base station.
  • the information included in the configuration information is as described in Embodiment 9, and details are not described herein again.
  • the first sending unit 901 sends the configuration information and/or the report information to the target base station by using a handover request message, where the information is sent through the X2 interface between the source base station and the target base station, or through the S1 interface.
  • the sending as described in Embodiment 9, is not described here.
  • a configuration information processing apparatus may be provided.
  • the source base station triggers the handover procedure and sends a handover request message to the target base station
  • the configuration information of the D2D communication of the UE and/or the D2D report information reported by the UE is sent.
  • the target base station is configured to enable the target base station to determine new configuration information according to the configuration information, so that part of the signaling configuration in the handover process can be implemented, and the signaling overhead is reduced.
  • the apparatus 900 further includes a first receiving unit 902, and the first receiving unit 902 is configured to receive configuration information of the new D2D communication determined by the target base station according to the received configuration information returned by the target base station.
  • the device 900 further includes a second sending unit 903, and the second sending unit 903 is configured to send configuration information of the new D2D communication received by the first receiving unit 902 to the user equipment.
  • the second sending unit 903 notifies the user equipment of the configuration information of the new D2D communication by using a handover command, but is not limited to the handover command, and may also use other message transmission.
  • Embodiment 13 of the present invention provides a base station, where the base station includes the apparatus described in Embodiment 12, where the base station is a base station of a serving cell to which the user equipment belongs, that is, a source base station.
  • FIG. 10 is a block diagram showing the configuration of a configuration information processing apparatus according to a fourteenth embodiment of the present invention.
  • the apparatus 1000 includes: a second receiving unit 1001, a second processing unit 1002, and a third sending unit 1003.
  • the second receiving unit 1001 is configured to receive a configuration of D2D communication of a user equipment sent by a source base station. The information and/or the report information of the D2D communication reported by the user equipment; the second processing unit 1002, configured to configure the configuration information of the new D2D communication according to the configuration information received by the second receiving unit 1001;
  • the third sending unit 1003 is configured to The configuration information of the new D2D communication configured by the second processing unit 1002 is transmitted to the source base station.
  • the second processing unit 1002 when one of the configuration information of the new D2D communication configured by the second processing unit 1002 is the same as the configuration information corresponding to one of the received configuration information, and the attribute is Need ON The second processing unit 1002 does not configure the configuration information that is the same as the configuration information corresponding to the received configuration information. Information contained in the configuration information of the new D2D communication; or,
  • the second processing unit 1002 does not configure one type of configuration information of the D2D communication and the presence attribute is Need OR to indicate release of the original configuration information, the second processing unit 1002 does not include such configuration information in the configuration information of the new D2D communication; Or,
  • the second processing unit 1002 When the configuration information of one of the configuration information of the new D2D communication configured by the second processing unit 1002 is different from the configuration information corresponding to one of the received configuration information, the second processing unit 1002 includes the configuration information in the configuration information. Configuration information of the new D2D communication; or
  • the second processing unit 1002 When the second processing unit 1002 does not configure one type of configuration information of the D2D communication and the presence attribute is Need 0N, and the second processing unit 1002 sets such configuration information to release, the second processing unit 1002 includes such configuration information in the Configuration information for new D2D communication.
  • a configuration information processing method for D2D communication in a handover process may be provided, when the target base station receives the configuration information of the D2D communication of the UE sent by the source base station and/or the D2D report information reported by the UE, so that the target base station The target base station can determine the new configuration information according to the configuration information, and return the configured new configuration information to the source base station, so that part of the signaling configuration in the handover process can be implemented, and the signaling overhead is reduced.
  • the embodiment of the present invention further provides a base station, where the base station includes the apparatus described in Embodiment 14, as described in Embodiment 14, and details are not described herein again.
  • the base station corresponds to a target base station.
  • FIG 11 is a block diagram showing the configuration of a configuration information processing apparatus according to a sixteenth embodiment of the present invention. As shown in Figure 11, the device
  • the 1100 includes: a third receiving unit 1101, where the third receiving unit 1101 is configured to receive configuration information of a new D2D communication configured by the source base station for the user equipment.
  • the device 1100 further includes an information processing unit 1102, where the information processing unit 1102 is configured to apply configuration information of the D2D communication; that is, according to the received configuration information of the new D2D communication or the configuration configured by the source base station for the user equipment.
  • the information is used to determine the configuration information of the D2D communication to be applied, as described in Embodiment 11, and details are not described herein again.
  • the receiving source base station sends the new D2D configuration information configured by the target base station to the UE, which can implement partial signaling configuration in the handover process and reduce signaling overhead.
  • Example 17 The embodiment of the present invention further provides a user equipment, where the user equipment includes the apparatus described in Embodiment 16, and details are not described herein again.
  • the embodiment 18 of the present invention provides a communication system, where the communication system includes a source base station and a target base station, where the source base station configures the D2D communication of the user equipment and/or when the source base station to which the user equipment belongs currently triggers the handover. Or the report information of the D2D communication reported by the user equipment is sent to the target base station; the target base station receives the configuration information of the D2D communication sent by the source base station and/or the report information of the D2D communication reported by the user equipment, and configures the configuration of the new D2D communication. Information, and the configured configuration information of the new D2D communication is returned to the source base station. In this way, part of the signaling configuration during the handover process can be implemented, and the signaling overhead is reduced.
  • the source base station is further configured to receive configuration information of the new D2D communication returned by the target base station, and send the configuration information of the new D2D communication to the user equipment.
  • the communication system further includes a user equipment, configured to receive configuration information of the new D2D communication sent by the source base station, and based on the configuration information of the new D2D communication and the configuration information of the saved D2D communication, The configuration information of the new D2D communication and the configuration information of the saved D2D communication are processed accordingly. Specifically, as described in Embodiment 16, it will not be described here.
  • Figure 12 is a flow chart showing a method of processing configuration information in Embodiment 18 of the present invention. As shown in Figure 12, the method includes:
  • Step 1201 The source base station (eNB) sends configuration information of the D2D communication to the UE.
  • the configuration information of the D2D communication is configured by the source base station for the UE, and may include one or more of the following:
  • the D2D enable indication information is used to indicate whether the cell supports D2D communication and/or whether the UE is allowed to perform D2D information reporting or the like;
  • D2D measurement configuration information including configuration information for measuring a D2D link
  • D2D link index identifier frequency used for D2D communication; bandwidth used for D2D communication;
  • Semi-static D2D resource allocation including time domain and/or frequency domain resource location information of semi-static D2D resource configuration; beacon resources used by the beacon or beacon resources of the peer UE; D2D link security algorithm and
  • the security key parameters may also include other information, which is merely an embodiment of the present invention.
  • Step 1202 in step 1201, if the D2D enable indication information indicates that the cell supports D2D communication and The D2D communication report information is sent to the source base station by the UE, and the D2D communication report information is included in the D2D communication report.
  • the UE prefers the D2D communication mode to a service or all services or the traditional cellular communication mode; or is used to support whether the UE supports only the D2D communication mode for one service or all services; but is not limited to the above information, and may include other Information, here only the embodiment of the invention.
  • Step 1203 The source base station triggers a handover procedure, and sends a handover request message to the target eNB.
  • the source base station may include configuration information of the D2D communication of the UE and/or report information of the D2D communication reported by the UE. Sending to the target base station in the handover request message;
  • the source base station sends the handover request message of the target base station, and may be sent by using the X2 interface between the source eNB and the target eNB, or may be sent by the MME through the S1 interface, that is, the handover here includes the handover based on the X2 interface. Contains switching based on the S 1 interface;
  • the configuration information and/or the report information may be sent by using other messages.
  • the D2D configuration information includes one or more of the following information:
  • a D2D enable indication configured to indicate whether the cell supports D2D communication and/or whether the UE is allowed to perform D2D information reporting, and the like;
  • D2D measurement configuration including configuration information for measuring the D2D link
  • D2D link index identifier frequency used for D2D communication; bandwidth used for D2D communication;
  • Semi-static D2D resource allocation including time domain and/or frequency domain resource location information of semi-static D2D resource configuration; beacon resources used or beacon resources of the opposite UE;
  • the report information includes one or more of the following information:
  • the D2D communication preference indication is used to indicate whether the UE prefers the D2D communication mode or the traditional cellular communication mode to a service or all services; or is to support whether the UE supports only the D2D communication mode for one service or all services.
  • Step 1204 The target base station configures new D2D configuration information based on the received configuration information of the D2D communication of the UE.
  • Example 1 A configuration information of a D2D communication configured by the target base station and a received source base station configuration
  • the configuration information corresponding to the D2D communication is the same and the existence attribute is "Need ON”
  • the target eNB does not include the configuration information of the D2D communication in the configuration information of the new D2D communication
  • Example 2 When the target base station does not configure configuration information of a D2D communication and its presence attribute is "Need OR", the target base station does not include configuration information of the D2D communication in the configuration information of the new D2D communication;
  • Example 3 The D2D configuration information configured by the target base station is different from the configuration information of a corresponding D2D communication of the received source base station, and the target base station includes configuration information of the D2D communication configured by the target base station in the new D2D. Configuration information;
  • Example 4 When the target base station does not configure configuration information of a D2D communication and its presence attribute is "Need ON”, when the target base station sets the configuration information of the D2D communication to release, the target base station configures the same The configuration information of the D2D communication is included in the new D2D configuration information.
  • Step 1205 Return configuration information of the new D2D communication to the source base station.
  • the target base station includes the configuration information of the new D2D communication in the handover request response information and returns to the source base station, but is not limited to the message, and may also notify the configuration information of the new D2D communication by using other messages.
  • the handover request response message sent by the target base station to the source base station may be sent through the X2 interface between the source base station and the target base station, or may be transmitted by the MME through the S1 interface, that is,
  • the switching at the location includes switching based on the X2 interface and also switching based on the S1 interface.
  • Step 1206 the source base station receives configuration information of the new D2D communication sent by the target base station, and sends the configuration information of the new D2D communication to the UE.
  • the configuration information of the new D2D communication may be sent to the UE in a handover command.
  • Step 1207 The UE receives the configuration information of the new D2D communication sent by the source base station, and applies the configuration information of the D2D communication. Specifically, the UE is based on the configuration information of the new D2D communication and the saved source base station.
  • the configuration information of the D2D communication configured by the UE determines the configuration information of the D2D communication to be applied according to the configuration information of the new D2D communication or the configuration information of the saved D2D communication;
  • Example 1 when the configuration information of the new D2D communication received by the UE does not include configuration information of the D2D communication, and the presence attribute is "Need ON", the UE applies the saved source base station configuration.
  • Example 2 When the configuration information of the new D2D communication received by the UE does not include configuration information of a D2D communication and its presence attribute is “Need OR”, the UE releases the saved D2D of the source base station configuration. Communication configuration information;
  • Example 3 When the configuration information of the new D2D communication received by the UE includes a D2D configuration information, the UE applies the new D2D configuration information received by the UE;
  • Example 4 When the configuration information of the new D2D communication received by the UE includes configuration information of the D2D communication having the attribute "None ON" and its value is set to release, the UE releases the saved source base station configuration. This D2D configuration information.
  • a configuration information processing method for D2D communication in a handover procedure can be provided.
  • the configuration information and/or the report information of the D2D communication of the UE may be notified to the target base station, where the target base station may configure the configuration information of the new D2D communication according to the configuration information, and send the source base station to the The UE sends, so that part of the signaling configuration during the handover process can be implemented, and the signaling overhead is reduced.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes a computer to perform the communication described in Embodiment 1 in the communication device or user equipment when the program is executed in a communication device or a user equipment method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the communication method described in Embodiment 1 in a communication device or a user equipment.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes a computer to execute Embodiment 5 in the configuration information processing device or user equipment when the program is executed in a configuration information processing device or a user device
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the configuration information processing method as described in Embodiment 5 in the configuration information processing device or the user equipment.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a configuration information processing device or a base station, the program causes a computer to execute in the configuration information processing device or the base station as in Embodiment 9, The configuration information processing method described in Embodiment 10.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the configuration information processing method described in Embodiment 9 and Embodiment 10 in the configuration information processing device or the base station. .
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes a computer to execute the embodiment 11 in the configuration information processing device or the user device when the program is executed in the configuration information processing device or the user device The configuration information processing method described.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the configuration information processing method described in Embodiment 11 in a configuration information processing device or a user device.
  • the embodiment of the present invention provides a method for processing configuration information of a configured D2D communication in a RRC connection re-establishment procedure triggered by a UE supporting D2D communication when performing cellular link recovery, or in a handover process.
  • part of the signaling configuration in the handover process can be implemented, and the signaling overhead is reduced.
  • the UE is prevented from disconnecting from the base station while the RRC connection is re-established, and the D2D communication is used before the configuration is used. Interference and energy/signaling overhead issues.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.

Abstract

一种通信方法、配置信息处理方法及其装置、通信系统。该方法包括:用户设备在触发无线资源控制(RRC)连接重建过程时,停止设备间直接(D2D)通信、和/或清空D2D链路相关定时器和/或计数器、和/或释放设备间直接(D2D)通信的配置信息。避免了RRC连接重建立时UE在与基站断开联系的同时使用之前的配置进行D2D通信所带来的干扰和能耗/信令开销问题。

Description

通信方法、 配置信息处理方法及其装置、 通信系统 技术领域
本发明涉及通信领域, 特别涉及一种通信方法、 配置信息处理方法及其装置、通 信系统。 背景技术
D2D CD2D, Device to Device )通信被称为设备间直接通信,是目前长期演进(LTE, Long Term Evolution) 系统引入的新兴技术。 与蓝牙技术相似, D2D 通信是一种支 持用户设备和用户设备之间进行短距离直接通信的技术,也就是处于 D2D通信中的两 个用户设备 (UE) 的数据业务可不经核心网而直接在两个 UE之间或通过基站作为中 转站点进行通信。 在 D2D通信的 LTE系统中存在一种场景, 即 UE之间的 D2D通信需 要由基站进行辅助, 如辅助 UE之间建立 D2D连接, 为 D2D通信动态分配资源等, 在 这种情况下, UE同时维护两种无线链路: UE与 eNB的通信链路以及 UE与 UE之间的 通信链路。
图 1是 LTE网络中 D2D链路示意图。如图 1所示, UE1与 UE2正在进行 D2D通信, 称 UE1和 eNB之间的通信链路为蜂窝链路, UE1和对端 UE2之间的链路称为 D2D链路。
由于 D2D 通信为新兴技术, 在用户设备进行切换或者蜂窝链路连接重建立过程 中, 正在进行的 D2D通信或者相关信息如何处理, 目前尚没有可行的方法。
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容
本发明实施例的目的在于提供一种通信方法、配置信息处理方法及其装置、通信 系统, 可在用户设备进行切换或者蜂窝链路连接重建立过程中, 对正在进行的 D2D通 信或者相关信息进行相应的处理, 可降低信令开销和用户设备的能耗, 避免使用之前 配置进行 D2D通信所带来的干扰。
根据本发明实施例的第一个方面提供了一种通信方法, 该方法包括: 用户设备在 触发无线资源控制 (RRC ) 连接重建过程时, 停止设备间直接 (D2D ) 通信、 和 /或清 空 D2D链路相关定时器和 /或计数器。
根据本发明实施例的第二个方面提供了一种配置信息处理方法, 该方法包括: 用 户设备在触发无线资源控制 (RRC )连接重建过程时, 释放设备间直接 (D2D )通信的 配置信息。
根据本发明实施例的第三个方面提供了一种通信装置, 该装置包括:
第一触发单元, 所述第一触发单元用于触发 RRC连接重建流程;
第一处理单元, 所述第一处理单元用于用在触发 RRC连接重建流程后, 停止 D2D 通信、 和 /或清空 D2D链路相关定时器和 /或计数器。
根据本发明实施例的第四个方面提供了一种配置信息处理装置, 该装置包括: 第二触发单元, 所述第二触发单元用于触发 RRC连接重建流程;
信息释放单元, 所述信息释放单元用于在触发 RRC连接重建过程后, 释放 D2D通 信的配置信息。
根据本发明实施例的第五个方面提供了一种用户设备, 该用户设备包括本发明实 施例第三个方面所述的通信装置、 和 /或第四个方面所述的装置。
根据本发明实施例的第六个方面提供了一种配置信息处理方法, 该方法包括: 在用户设备当前所属的源基站触发切换时,所述源基站将所述用户设备的 D2D通 信的配置信息和 /或用户设备上报的 D2D通信的报告信息发送给目标基站。
根据本发明实施例的第七个方面提供了一种配置信息处理方法, 该方法包括: 目标基站接收源基站发送的用户设备的 D2D通信的配置信息和 /或用户设备上报 的 D2D通信的报告信息;
根据接收的所述配置信息配置新的 D2D通信的配置信息;
将所述新的 D2D通信的配置信息向所述源基站发送。
根据本发明实施例的第八个方面提供了一种配置信息处理方法, 该方法包括: 用户设备接收源基站发送的目标基站为所述用户设备配置的新的 D2D 通信的配 置信息。
根据本发明实施例的第九个方面提供了一种配置信息处理装置, 该装置包括: 第一发送单元, 所述第一发送单元用于在用户设备当前所属的源基站触发切换 时, 将所述用户设备的 D2D通信的配置信息和 /或用户设备上报的 D2D通信的报告信 息发送给目标基站。
根据本发明实施例的第十个方面提供了一种基站, 所述基站包括第九个方面所述 的装置。
根据本发明实施例的第十一个方面提供了一种配置信息处理装置, 该装置包括: 第二接收单元,所述第二接收单元用于接收源基站发送的用户设备的 D2D通信的 配置信息和 /或用户设备上报的 D2D通信的报告信息;
第二处理单元,所述第二处理单元用于根据所述第二接收单元接收的所述配置信 息配置新的 D2D通信的配置信息;
第三发送单元,所述第三发送单元用于将所述第二处理单元配置的新的 D2D通信 的配置信息向所述源基站发送。
根据本发明实施例的第十二个方面提供了一种基站, 该基站包括第十一个方面所 述的装置。
根据本发明实施例的第十三个方面提供了一种配置信息处理装置, 该装置包括: 第三接收单元,所述第三接收单元用于接收源基站发送的目标基站为所述用户设 备配置的新的 D2D通信的配置信息。
根据本发明实施例的第十四个方面提供了一种用户设备, 该基站包括第十三个方 面所述的装置。
根据本发明实施例的第十五个方面提供了一种通信系统, 包括基站, 其中, 该通 信系统还包括第五个方面所述的用户设备。
根据本发明实施例的第十六个方面提供了一种通信系统, 所述通信系统包括第十 个方面所述的源基站和第十二个方面所述的目标基站。
根据本发明实施例的第十七个方面提供一种计算机可读程序,其中当在通信装置 或用户设备中执行所述程序时,所述程序使得计算机在所述通信装置或用户设备中执 行如本发明实施例第一个方面所述的通信方法。
根据本发明实施例的第十八个方面提供了一种存储有计算机可读程序的存储介 质,其中所述计算机可读程序使得计算机在通信装置或用户设备中执行如本发明实施 例第一个方面所述的通信方法。
根据本发明实施例的第十九个方面提供了一种计算机可读程序, 其中当在配置信 息处理装置或用户设备中执行所述程序时,所述程序使得计算机在所述配置信息处理 装置或用户设备中执行如第二个方面所述的配置信息处理方法。
根据本发明实施例的第二十个方面提供了一种存储有计算机可读程序的存储介 质,其中所述计算机可读程序使得计算机在配置信息处理装置或用户设备中执行第二 个方面所述的配置信息处理方法。
根据本发明实施例的第二十一个方面提供了一种计算机可读程序, 其中当在配置 信息处理装置或基站中执行所述程序时,所述程序使得计算机在所述配置信息处理装 置或基站中执行如第六个方面所述的配置信息处理方法。
根据本发明实施例的第二十个方面提供了一种存储有计算机可读程序的存储介 质,其中所述计算机可读程序使得计算机在配置信息处理装置或基站中执行如第六个 方面所述的配置信息处理方法。
根据本发明实施例的第二十个方面提供了一种计算机可读程序, 其中当在配置信 息处理装置或用户设备中执行所述程序时,所述程序使得计算机在所述配置信息处理 装置或用户设备中执行如第六个方面或第七个方面所述的配置信息处理方法。
根据本发明实施例的第二十个方面提供了一种存储有计算机可读程序的存储介 质,其中所述计算机可读程序使得计算机在配置信息处理装置或用户设备中执行如第 八个方面所述的配置信息处理方法。
本发明实施例的有益效果在于: 通过本发明实施例, 可在用户设备进行切换或者 蜂窝链路连接重建立过程中, 对正在进行的 D2D通信或者相关信息进行相应的处理, 可降低信令开销和用户设备的能耗, 避免使用之前配置进行 D2D通信所带来的干扰。 如在 UE触发 RRC连接重建立流程后, 停止正在进行的 D2D通信, 可避免通信资源和 UE能量的浪费以及减少对其他用户的干扰; 清空相关的定时器和 /或计数器, 可避免 出现与该定时器相关的误操作, 且保持该定时器 /计数器与网络侧的同步, 解决了现 有技术中存在的问题。
参照后文的说明和附图, 详细公开了本发明的特定实施方式, 指明了本发明的原 理可以被采用的方式。 应该理解, 本发明的实施方式在范围上并不因而受到限制。 在所 附权利要求的精神和条款的范围内, 本发明的实施方式包括许多改变、 修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多个 其它实施方式中使用,与其它实施方式中的特征相组合,或替代其它实施方式中的特征。
应该强调, 术语 "包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
从以下结合附图的详细描述中, 本发明实施例的上述以及其他目的、 特征和优点 将变得更加显而易见, 在附图中:
图 1是 LTE网络中 D2D链路示意图;
图 2是本发明实施例 1的通信方法流程图;
图 3是本发明实施例 2的通信装置构成示意图;
图 4是本发明实施例 5的配置信息处理方法流程图;
图 5是本发明实施例 6的配置信息处理装置构成示意图;
图 6是本发明实施例 9的配置信息处理方法流程图;
图 7是本发明实施例 10的配置信息处理方法流程图;
图 8是本发明实施例 11的配置信息处理方法流程图;
图 9是本发明实施例 12的配置信息处理装置构成示意图;
图 10是本发明实施例 14的配置信息处理装置构成示意图;
图 11是本发明实施例 16的配置信息处理装置构成示意图;
图 12是本发明实施例 18的配置信息处理方法流程图。 具体实施方式
下面结合附图对本发明的各种实施方式进行说明。 这些实施方式只是示例性的, 不是对本发明的限制。 以下结合附图对本发明实施例进行详细说明。
目前, 处于 D2D通信中的用户设备 UE将被配置相关的 D2D配置信息, 如 D2D链 路频率、 D2D链路标识、 D2D链路发现使能指示和 D2D链路信标 (beacon ) 资源等, 该配置信息由 eNB下发给 UE, 该 UE基于这些配置信息维护 D2D通信的链路, 对 D2D 通信的链路进行测量以及在 D2D通信的链路上进行通信等。
但发明人在实现本发明的过程中发现, D2D通信为 LTE系统引入的新兴技术, 以 蜂窝链路连接重建立过程为例, 在 LTE网络的 D2D通信中, 当 UE的蜂窝链路出现问 题需要进行 RRC连接恢复时, 该 UE触发 RRC连接重建立流程。 此时正在进行的 D2D 通信如何处理以及已配置的 D2D配置信息是否需要释放等成为 RRC连接重建立流程中 需要解决的问题。例如, 当 UE的蜂窝链路发生中断, 若该 UE继续使用原有的 D2D通 信的配置信息, 如 D2D发现使能置位, 则该 UE继续执行 D2D通信的发现, 但若网络 侧此时 D2D通信的负载很重而无法支持 D2D通信, 则该 UE即使发现了可以进行 D2D 通信的对端用户设备, 也无法通过 D2D方式进行通信, 此时执行的 D2D通信发生会带 来无谓的 UE能耗开销。
本发明实施例提供一种通信方法、 配置信息处理方法及其装置、通信系统, 可在 用户设备进行切换或者蜂窝链路连接重建立过程中,对正在进行的 D2D通信或者相关 信息进行相应的处理, 可降低信令开销和用户设备的能耗, 避免使用之前配置进行 D2D通信所带来的干扰。
Figure imgf000008_0001
实施例 1
本发明实施例 1提供一种通信方法, 该方法包括: 用户设备 (UE )在触发无线资 源控制 (RRC ) 连接重建过程后, 停止设备间直接 (D2D ) 通信、 和 /或清空 D2D链路 相关定时器和 /或计数器。
图 2是本发明实施例 1的通信方法流程图。 如图 2所示, 该方法包括:
步骤 201, UE触发 RRC连接重建立流程, 以恢复与基站的 RRC连接。
步骤 202, 停止设备间直接 (D2D ) 通信、 和 /或清空 D2D链路相关定时器和 /或 计数器。
在本实施例中, 在该 UE触发该 RRC连接重建立流程后, 该 UE停止当前的 D2D通 信, 即停止当前的 D2D链路上的数据和控制信令的发送和接收。或者清空 D2D链路相 关定时器和 /或计数器, 以下举例说明:
例如, 用于 D2D链路监测的定时器和计数器。
若基站 eNB向 UE配置计数器 Nl, N2和定时器 Π, 用于在 D2D链路出现连续 N1 个 "非同步 "指示时, 启动定时器 Π, 当该定时器 Π超时后, 判定 D2D链路发生失 败, 或 D2D链路出现连续 Ν2个 "同步"指示时, 则认为 D2D链路自动恢复。
例如, 用于 D2D通信的发现的定时器。
在基站 eNB配置定时器 Τ2、 用于 UE进行 D2D通信的发现时, 当检测另一个用户 发送的信标 (beacon ) 信号强度在定时器 T2时间内高于门限制时, 向基站发送 D2D 通信的建立请求或 D2D通信的测量结果。 上述定时器和计时器仅为本发明实施例, 不限于上述实施例。
通过上述实施例, 提供了一种通信方法, 在 UE触发 RRC连接重建立流程后, 停 止正在进行的 D2D通信, 这样可避免通信资源和 UE能量的浪费以及减少对其他用户 的干扰; 此外, 还可清空相关的定时器和 /或计数器, 这样可避免出现与该定时器相 关的误操作, 且保持该定时器 /计数器与网络侧的同步, 这样可解决现有技术中存在 的问题。
实施例 2
图 3是本发明实施例 2的通信装置构成示意图。 如图 3所示, 装置 300包括: 第 一触发单元 301和第一处理单元 302 ; 其中, 第一触发单元 301用于触发 RRC连接重 建; 第一处理单元 301用于用在触发 RRC连接重建流程时, 停止 D2D通信、 和 /或清 空 D2D链路相关定时器和 /或计数器。
由上述实施例可知, 通过该装置, 可在触发 RRC连接重建立流程后, 停止正在进 行的 D2D通信, 这样可避免通信资源和 UE能量的浪费以及减少对其他用户的干扰; 此外, 还可清空相关的定时器和 /或计数器, 可避免出现与该定时器相关的误操作, 且保持该定时器 /计数器与网络侧的同步, 解决了现有技术中存在的问题。
实施例 3
本发明实施例 3提供一种用户设备, 该用户设备包括实施例 2所述的通信装置, 此处不再赘述。
实施例 4
本发明实施例 4提供一种通信系统, 该通信系统包括实施例 3所述的用户设备, 在该用户设备触发 RRC连接重建立流程后, 停止当前的 D2D通信、 和 /或清空相关的 定时器和 /或计数器。
其中, 该 D2D通信、 定时器和计数器如实施例 1所述, 此处不再赘述。
实施例 5
图 4是本发明实施例 5的配置信息处理方法流程图。 如图 4所示, 该方法包括: 步骤 401, 用户设备在触发无线资源控制 (RRC ) 连接重建过程时, 释放设备间 直接 (D2D ) 通信的配置信息;
在本实施例中, 该配置信息可包括一种或一种以上的信息:
D2D通信的链路索引标识、 D2D通信的所用频率、 D2D通信所用带宽、 D2D通信的 无线网络临时标识 (RNTI, Radio Network Temporary Identifier) , 对端用户设备 的小区 RNTI ( Cel l— RNTI )、 D2D通信的使能指示、 D2D通信的公共资源配置、 静态 D2D通信的资源分配、 所使用信标 (Beacon) 资源或对端用户设备的信标 (Beacon) 资源、 D2D通信的测量配置、 D2D通信的链路安全算法和安全密钥。
在本实施例中,该 D2D通信的公共资源配置可包括以下信息其中之一或一种以上:
D2D链路最大发射功率, D2D链路功率控制参数, D2D链路 CP长度, D2D链路的物理 上行共享信道 (PUSCH) 起始位置, 解调参考信号 (DM-RS ) 配置等。
通过上述实施例, 可提供一种 D2D通信的配置信息处理方法, 在 UE触发 RRC连 接重建立流程后, 可释放 D2D通信的配置信息, 这样可解决现有技术中存在的问题。
如图 4所示, 该方法还可包括如下步骤 403:
在该 RRC连接重建成功后, 在收到新的 D2D通信的配置信息前, 不向重建小区发 送 D2D通信的报告, 该报告包括以下之一或一个以上: D2D通信的链路测量结果、 D2D 通信的通信请求、 D2D通信的通信偏好指示。 其中, 该通信偏好指示是: 用于指示该 UE对一种业务或所有业务是否优选 D2D通信方式还是传统蜂窝通信方式; 或者用于 支持该 UE对一种业务或所有业务是否仅支持 D2D通信方式。
在上述实施例中, 步骤 403为可选步骤, 此外, 步骤 402和步骤 403的执行顺序 可互换。
实施例 6
图 5是本发明实施例 6的配置信息处理装置构成示意图。 如图 5所示, 装置 500 包括:第二触发单元 501和信息释放单元 502;其中,第二触发单元 501用于触发 RRC 连接重建流程; 信息释放单元 501用于在触发 RRC连接重建流程时, 释放 D2D通信的 配置信息。
其中, 该配置信息所包括的内容如实施例 5所述, 此处不再赘述。
如图 5所示, 装置 500还包括: 连接重建单元 503和第二处理单元 504, 其中, 连接重建单元 503用于进行 RRC连接重建且连接重建成功;第二处理单元 504用于在 该 RRC连接重建成功后, 在收到新的 D2D通信的配置信息前, 不向重建小区发送 D2D 通信的报告。
在本实施例中, 该报告包括以下之一或一个以上: D2D通信的链路测量结果、 D2D 通信的通信请求、 D2D通信的通信偏好指示。 在本实施例中, 连接重建单元 503和第二处理单元 504为可选部件。
通过上述实施例, 可提供一种 D2D通信的配置信息处理装置, 在 UE触发 RRC连 接重建立流程后, 可释放 D2D通信的配置信息, 且在连接重建成功后, 不上报 D2D通 信的报告, 这样可避免 UE在与基站断开连接时使用之前的配置进行 D2D通信所带来 的干扰和能耗 /信令开销的问题。
实施例 7
本发明实施例 7提供一种用户设备, 该用户设备可包括实施例 6所述的装置, 此 处不再赘述。
实施例 8
本发明实施例 8提供一种通信系统, 该系统包括实施例 7所示的用户设备。 通过该通信系统, 可避免 RRC连接重建时, 在 UE与基站断开连接的同时使用之 前的配置进行 D2D通信所带来的干扰和能耗 /信令开销的问题。
在上述实施例中,实施例 3所述的用户设备和实施例 7所述的用户设备可组合使 用。
实施例 9
图 6是本发明实施例 9的配置信息处理方法流程图。 在源基站侧, 如图 6所示, 该方法包括:
步骤 601, 在用户设备当前所属的源基站触发切换时, 该源基站将该用户设备的 D2D通信的配置信息和 /或用户设备上报的 D2D通信的报告信息发送给目标基站。
在本实施例中, 该配置信息包括以下信息其中之一或一个以上:
D2D通信使能指示, 其用于指示该小区是否支持 D2D通信和 /或是否允许该 UE进 行 D2D通信的信息报告等;
D2D通信的测量配置, 包括对 D2D链路进行测量的配置信息;
D2D通信的链路索引标识; D2D通信所用频率; D2D通信所用带宽;
半静态 D2D通信的资源分配, 包括半静态 D2D通信的资源配置的时域和 /或频域 资源位置信息;
所使用信标资源或对端用户设备的信标资源;
D2D通信的链路安全算法和 /或新的派生安全密钥参数;
该报告信息包括以下信息其中之一或一个以上: D2D通信的链路测量结果;
D2D通信的通信偏好指示, 用于指示该 UE对一种业务或所有业务是否优选 D2D 通信方式还是传统蜂窝通信方式; 或者用于支持该 UE对一种业务或所有业务是否仅 支持 D2D通信方式。
在本实施例中,该配置信息和 /或报告信息通过切换请求消息发送给该目标基站; 其中, 可通过该源基站与该目标基站之间的 X2接口发送; 或者通过 S1接口由移动管 理实体 (MME, Mobi l ity Management Entity) 进行中转处理发送, 即此处的切换包 含基于 X2接口的切换也包含基于 S1接口的切换。
步骤 602, 接收该目标基站返回的该目标基站根据接收的该配置信息配置的新的 D2D通信的配置信息;
在本实施例中,该新的 D2D通信的配置信息可包含在切换请求应答消息中返回该 源基站;
同上所述, 该切换请求应答消息, 可以通过源 eNB和目标 eNB之间的 X2接口发 送, 也可以通过 S1接口由 MME进行中转处理发送。
步骤 603, 将接收到的新的 D2D通信的配置信息向该用户设备发送;
其中, 该源基站可通过切换命令向该用户设备发送。
在本实施例中, 在发生切换时, 源基站可将用户设备的 D2D配置信息和 /或报告 信息向目标基站发送, 使得该目标基站基于接收的配置信息决策新的 D2D配置信息, 可降低信令开销。
实施例 10
图 7是本发明实施例 10的配置信息处理方法流程图。如图 10所示,该方法包括: 步骤 701, 目标基站接收源基站发送的用户设备的 D2D通信的配置信息和 /或用 户设备上报的 D2D通信的报告信息;
其中, 该配置信息和 /或报告信息如实施例 9所述, 此处不再赘述。
步骤 702, 根据接收的该配置信息配置新的 D2D通信的配置信息;
在本实施例中,在该目标基站配置的新的 D2D通信的配置信息中的一种配置信息 与接收到的配置信息中的一种对应的配置信息相同、 且存在属性为 Need ON时, 该目 标基站不将与接收到的配置信息对应的配置信息相同的这种配置信息包含在该新的 D2D 通信的配置信息, 其中, 属性 "Need ON"用于指示使用原配置信息, 即具备该 属性的信息元 (IE), 如果不出现在消息中, 则表示使用原配置信息, 这样, 可节省 信令开销; 或者,
在该目标基站不配置 D2D通信的一种配置信息且存在属性为 Need OR指示释放原 配置信息时,该目标基站不将这种配置信息包含在该新的 D2D通信的配置信息,其中, 属性 "Need OR"用于指示释放或停止使用原配置信息, 即具备该属性的信息元(IE), 如果不出现在消息中, 则表示释放或停止使用原配置信息, 这样, 可节省信令开销; 或者,
在该目标基站配置的新的 D2D 通信的配置信息中的一种配置信息与接收到的配 置信息中的一种对应的配置信息不同时,该目标基站将这种种配置信息包含在该新的 D2D通信的配置信息; 或者,
在该目标基站不配置 D2D通信的一种配置信息且存在属性为 Need 0N、 该目标基 站将这种配置信息设置为释放时,该目标基站将这种配置信息包含在该新的 D2D通信 的配置信息;
上述属性 "Need ON"和 "Need OR" 均为基站与用户设备之间预先约定的属性, 与信息元 (IE) 对应, 为本领域公知, 此处不再赘述。 步骤 703, 将该新的 D2D通信 的配置信息向该源基站发送。
在本实施例中, 目标基站可接收源基站发送的用户设备的 D2D配置信息和 /或报 告信息, 根据接收的配置信息决策新的 D2D配置信息, 这样, 可实现切换过程中的部 分信令配置, 降低信令开销。
实施例 11
图 8是本发明实施例 11的配置信息处理方法流程图。如图 8所示, 该方法包括: 步骤 801, 用户设备接收源基站发送的目标基站为该用户设备配置的新的 D2D通 信的配置信息;
在本实施例中, 该新的 D2D通信的配置信息通过切换命令通知该用户设备, 如实 施例 9和 10所述, 此处不再赘述。
步骤 802, 应用 D2D通信的配置信息;
其中,可根据接收的新的 D2D通信的配置信息或该源基站为该用户设备配置的配 置信息来应用该 D2D通信的配置信息;即该用户设备结合接收到的新的 D2D通信的配 置信息以及已经保存的该源基站配置的配置信息来决定是应用新的 D2D 通信的配置 信息还是应用已保存的配置信息, 以下举例说明:
例 1, 在接收的该新的 D2D通信的配置信息中不包含一种配置信息且这种配置信 息的存在属性为 Need ON时, 该用户设备应用保存的该源基站配置的这种配置信息; 例 2, 在接收的该新的 D2D通信的配置信息中不包含一种配置信息且这种配置信 息的存在属性为 Need OR时, 该用户设备释放保存的该源基站配置的这种配置信息; 例 3, 在接收的该新的 D2D通信的配置信息中包含一种配置信息且这种配置信息 与源基站配置的对应的配置信息不同时,该用户设备应用接收到该新的 D2D通信的配 置信息中的这种配置信息;
例 4, 在接收的该新的 D2D通信的配置信息中包含存在属性为 Need ON且设置为 释放的一种配置信息时, 该用户设备释放保存的该源基站配置的这种配置信息。
通过上述实施例, 可提供一种切换过程中 D2D通信的配置信息处理方法, 在源基 站触发切换流程并向目标基站发送切换请求消息时, 将该 UE的 D2D通信的配置信息 和 /或该 UE上报的 D2D报告信息发送给目标基站,该目标基站可根据该配置信息决策 新的配置信息, 并返回该源基站, 这样可实现切换过程中的部分信令配置, 降低信令 开销; 此外, 该源基站将目标基站配置的新的 D2D通信的配置信息发送至 UE, 使得 UE基于该新的配置信息和已保存的配置信息来应用该 D2D通信的配置信息, 解决现 有技术中存在的问题。
本领域普通技术人员可以理解,上述实施例所述的方法中的全部或部分步骤可以 通过程序来指令相关的硬件完成, 所述程序可以存储于一计算机可读取存储介质中, 该程序在执行时, 可以包括上述实施例方法中的全部或部分步骤, 所述的存储介质可 以包括: ROM、 RAM, 磁盘、 光盘等。
本发明实施例还提供一种配置信息处理装置、用户设备和基站。如下面的实施例 所述。 由于该装置、 用户设备和基站解决问题的原理与上述基于该装置、 用户设备和 基站的方法相似, 因此该装置、 用户设备和基站的实施可以参见方法的实施, 重复之 处不再赘述。
实施例 12
图 9是本发明实施例 12的配置信息处理装置构成示意图。如图 9所示,装置 900 包括: 第一发送单元 901, 第一发送单元 901用于在用户设备当前所属的源基站触发 切换时, 将该用户设备的 D2D通信的配置信息和 /或用户设备上报的 D2D通信的报告 信息发送给目标基站。
在本实施例中, 该配置信息所包括的信息如实施例 9所述, 此处不再赘述。 在本实施例中, 第一发送单元 901通过切换请求消息将该配置信息和 /或报告信 息发送给该目标基站; 其中, 通过该源基站与目标基站之间的 X2接口发送; 或者通 过 S1接口发送, 如实施例 9所述, 此处不再赘述。
通过上述实施例, 可提供一种配置信息处理装置, 在源基站触发切换流程并向目 标基站发送切换请求消息时, 将该 UE的 D2D通信的配置信息和 /或该 UE上报的 D2D 报告信息发送给目标基站, 以使该目标基站可根据该配置信息决策新的配置信息, 可 实现切换过程中的部分信令配置, 降低信令开销。
如图 9所示, 装置 900还包括第一接收单元 902, 第一接收单元 902用于接收目 标基站返回的该目标基站根据接收的配置信息确定的新的 D2D通信的配置信息。
如图 9所示, 装置 900还包括第二发送单元 903, 第二发送单元 903用于将第一 接收单元 902接收到的该新的 D2D通信的配置信息向用户设备发送。
在本实施例中,第二发送单元 903通过切换命令将该新的 D2D通信的配置信息通 知所述用户设备, 但不限于该切换命令, 还可采用其他消息发送。
在本实施例中, 该装置的工作流程如实施例 9所述, 此处不再赘述。
实施例 13
本发明实施例 13提供一种基站, 该基站包括实施例 12所述的装置, 该基站为用 户设备所属服务小区的基站, 即源基站。
实施例 14
图 10是本发明实施例 14的配置信息处理装置构成示意图。 如图 10所示, 装置 1000包括: 第二接收单元 1001、 第二处理单元 1002和第三发送单元 1003; 其中, 第二接收单元 1001, 用于接收源基站发送的用户设备的 D2D通信的配置信息和 / 或用户设备上报的 D2D通信的报告信息; 第二处理单元 1002, 用于根据第二接收单 元 1001接收的配置信息配置新的 D2D通信的配置信息;第三发送单元 1003用于将第 二处理单元 1002配置的新的 D2D通信的配置信息向该源基站发送。
在本实施例中, 在第二处理单元 1002配置的新的 D2D通信的配置信息中的一种 配置信息与接收到的配置信息中的一种对应的配置信息相同、 且存在属性为 Need ON 时, 第二处理单元 1002不将与接收到的配置信息对应的配置信息相同的这种配置信 息包含在该新的 D2D通信的配置信息; 或者,
在第二处理单元 1002不配置 D2D通信的一种配置信息且存在属性为 Need OR指 示释放原配置信息时, 第二处理单元 1002不将这种配置信息包含在该新的 D2D通信 的配置信息; 或者,
在第二处理单元 1002配置的新的 D2D通信的配置信息中的一种配置信息与接收 到的配置信息中的一种对应的配置信息不同时, 第二处理单元 1002将这种配置信息 包含在该新的 D2D通信的配置信息; 或者,
在第二处理单元 1002不配置 D2D通信的一种配置信息且存在属性为 Need 0N、 第二处理单元 1002将这种配置信息设置为释放时,第二处理单元 1002将这种配置信 息包含在该新的 D2D通信的配置信息。
在本实施例中, 该装置的工作流程如实施例 10所述, 此处不再赘述。
通过上述实施例, 可提供一种切换过程中 D2D通信的配置信息处理方法, 在目标 基站接收到源基站发送的 UE的 D2D通信的配置信息和 /或该 UE上报的 D2D报告信息 时, 以使该目标基站可根据该配置信息决策新的配置信息, 并将配置的该新的配置信 息返回源基站, 这样, 可实现切换过程中的部分信令配置, 降低信令开销。
实施例 15
本发明实施例还提供一种基站, 该基站包括实施例 14所述的装置, 如实施例 14 所述, 此处不再赘述。 该基站对应目标基站。
实施例 16
图 11是本发明实施例 16的配置信息处理装置构成示意图。 如图 11所示, 装置
1100包括: 第三接收单元 1101, 第三接收单元 1101用于接收源基站发送的目标基站 为该用户设备配置的新的 D2D通信的配置信息。
如图 11所示, 装置 1100还包括信息处理单元 1102, 信息处理单元 1102用于应 用 D2D通信的配置信息;即根据接收的新的 D2D通信的配置信息或该源基站为该用户 设备配置的配置信息来决定所要应用的 D2D通信的配置信息, 如实施例 11所述, 此 处不再赘述。
通过上述实施例,通过接收源基站发送目标基站为 UE配置的新的 D2D配置信息, 可实现切换过程中部分信令配置, 降低信令开销。
实施例 17 本发明实施例 17还提供一种用户设备, 该用户设备包括实施例 16所述的装置, 此处不再赘述。
实施例 18
本发明实施例 18提供一种通信系统, 该通信系统包括源基站和目标基站, 其中, 在用户设备当前所属的源基站触发切换时,该源基站将该用户设备的 D2D通信的 配置信息和 /或用户设备上报的 D2D通信的报告信息发送给目标基站; 该目标基站接 收该源基站发送的 D2D通信的配置信息和 /或用户设备上报的 D2D通信的报告信息, 并配置新的 D2D通信的配置信息,并将配置的该新的 D2D通信的配置信息返回该源基 站。 这样, 可实现切换过程中部分信令配置, 降低信令开销。
此外, 在本实施例中, 该源基站还用于接收该目标基站返回的新的 D2D通信的配 置信息, 并将该新的 D2D通信的配置信息向用户设备发送;
这样, 该通信系统还包括用户设备, 该用户设备用于接收该源基站发送的新的 D2D通信的配置信息, 并基于该新的 D2D通信的配置信息和已保存的 D2D通信的配置 信息,对该该新的 D2D通信的配置信息和已保存的 D2D通信的配置信息进行相应地处 理。 具体如实施例 16所述, 此处不再赘述。
以下结合附图对在切换过程中对已配置的 D2D配置信息的处理为例进行说明。 图 12是本发明实施例 18的配置信息处理方法流程图。 如图 12所示, 该方法包 括:
步骤 1201, 源基站 (eNB ) 向 UE下发 D2D通信的配置信息;
在本实施例中, 该 D2D通信的配置信息为源基站为该 UE配置, 可包括下述的一 种或多种:
D2D使能指示信息, 用于指示该小区是否支持 D2D通信和 /或是否允许该 UE进行 D2D信息报告等;
D2D测量配置信息, 包括对 D2D链路进行测量的配置信息;
D2D链路索引标识; D2D通信所用频率; D2D通信所用带宽;
半静态 D2D资源分配,包括半静态 D2D资源配置的时域和 /或频域资源位置信息; 所使用信标 (Beacon ) 资源或对端 UE的信标 (beacon ) 资源; D2D链路安全算 法和安全密钥参数,但不限于上述信息,还可包括其他信息,此处仅为本发明实施例。
步骤 1202, 在步骤 1201中, 若该 D2D使能指示信息指示该小区支持 D2D通信且 允许该 UE进行 D2D信息报告, 则该 UE向该源基站发送 D2D通信的报告信息; 在本实施例中, 该 D2D通信的报告信息包含: D2D链路测量结果; D2D通信偏好 指示, 用于指示该 UE对一种业务或所有业务是否优选 D2D通信方式还是传统蜂窝通 信方式; 或者用于支持该 UE对一种业务或所有业务是否仅支持 D2D通信方式; 但不 限于上述信息, 还可包括其他信息, 此处仅为本发明实施例。
步骤 1203, 该源基站触发切换流程, 并向目标 eNB发送切换请求消息; 在本实施例中, 该源基站可将该 UE的 D2D通信的配置信息和 /或 UE上报的 D2D 通信的报告信息包含在该切换请求消息中发送给目标基站;
该源基站发送目标基站的切换请求消息, 可以通过源 eNB和目标 eNB之间的 X2 接口发送, 也可以通过 S 1接口由 MME进行中转处理发送, 即此处的切换包含基于 X2 接口的切换也包含基于 S 1接口的切换;
但不限于该切换请求消息,通过其他消息也可发送上述配置信息和 /或报告信息; 在本实施例中, 该 D2D配置信息包括以下信息的一种或一种以上:
D2D使能指示, 用于指示该小区是否支持 D2D通信和 /或是否允许该 UE进行 D2D 信息报告等;
D2D测量配置, 包括对 D2D链路进行测量的配置信息;
D2D链路索引标识; D2D通信的所用频率; D2D通信所用带宽;
半静态 D2D资源分配,包括半静态 D2D资源配置的时域和 /或频域资源位置信息; 所使用的信标 (Beacon ) 资源或对端 UE的信标 (beacon ) 资源;
D2D链路安全算法和 /或新的派生安全密钥参数;
该报告信息包括以下信息的一种或一种以上:
D2D链路测量结果;
D2D通信偏好指示, 用于指示该 UE对一种业务或所有业务是否优选 D2D通信方 式还是传统蜂窝通信方式;或者用于支持该 UE对一种业务或所有业务是否仅支持 D2D 通信方式。
步骤 1204,该目标基站基于接收到的该 UE的 D2D通信的配置信息,配置新的 D2D 配置信息;
以下举例说明:
例 1 : 该目标基站配置的一种 D2D通信的配置信息与接收到的源基站配置的一种 对应 D2D通信的配置信息相同、 且其存在属性为 "Need ON" 时, 该目标 eNB在该新 的 D2D通信的配置信息中不包含这种 D2D通信的配置信息;
例 2 : 该目标基站不配置一种 D2D通信的配置信息且其存在属性为 "Need OR" 时, 则该目标基站在该新的 D2D通信的配置信息中不包含这种 D2D通信的配置信息; 例 3 : 该目标基站配置的一种 D2D配置信息与接收到的源基站的一种对应 D2D通 信的配置信息不同, 该目标基站将其配置的这种 D2D 通信的配置信息包含在该新的 D2D配置信息中;
例 4: 该目标基站不配置一种 D2D通信的配置信息且其存在属性为 "Need ON" 时, 该目标基站将这种 D2D通信的配置信息设置为释放时, 该目标基站将其配置的这 种 D2D通信的配置信息包含在该新的 D2D配置信息中。
步骤 1205, 将该新的 D2D通信的配置信息返回该源基站;
在本实施例中,该目标基站将新的 D2D通信的配置信息包含在切换请求应答信息 中返回给该源基站, 但不限于该消息, 还可通过其他消息通知该新的 D2D通信的配置 信息; 同上所述, 该目标基站发送给该源基站的切换请求应答消息, 可以通过该源基 站和该目标基站之间的 X2接口发送, 也可以通过 S 1接口由 MME进行中转处理发送, 即此处的切换包含基于 X2接口的切换也包含基于 S 1接口的切换。
步骤 1206, 该源基站接收该目标基站发送的新的 D2D通信的配置信息, 并将该 新的 D2D通信的配置信息向 UE发送;
在本实施例中, 该新的 D2D通信的配置信息可包含在切换命令中向该 UE发送。 步骤 1207, 该 UE接收源基站发送的该新的 D2D通信的配置信息, 并应用该 D2D 通信的配置信息, 具体地, 该 UE基于该新的 D2D通信的配置信息和已保存的该源基 站为该 UE配置的 D2D通信的配置信息, 根据该新的 D2D通信的配置信息或已保存的 D2D通信的配置信息来决定所要应用的 D2D通信的配置信息; 以下举例说明:
例 1, 在该 UE接收到的新的 D2D通信的配置信息中不包含一种 D2D通信的配置 信息、 且其存在属性为 "Need ON" 时, 该 UE应用所保存的该源基站配置的这种 D2D 通信的配置信息;
例 2, 在该 UE接收到的新的 D2D通信的配置信息中不包含一种 D2D通信的配置 信息且其存在属性为 "Need OR"时, 该 UE释放所保存的源基站配置的这种 D2D通信 的配置信息; 例 3, 在该 UE接收到的新的 D2D通信的配置信息中包含一种 D2D配置信息时, 该 UE应用收到的该新的 D2D配置信息;
例 4:在该 UE接收到的新的 D2D通信的配置信息中包含一种存在属性为" Need ON" 的 D2D通信的配置信息且其值设置为释放时, 该 UE释放所保存的源基站配置的这种 D2D配置信息。
通过上述实施例, 可提供一种切换流程中 D2D通信的配置信息处理方法。在源基 站触发切换流程时, 可将 UE的 D2D通信的配置信息和 /或报告信息通知目标基站, 该 目标基站可根据上述配置信息配置新的 D2D通信的配置信息, 并将该源基站向该 UE 发送, 这样, 可实现切换过程中部分信令配置, 降低信令开销。
本发明实施例还提供一种计算机可读程序,其中当在通信装置或用户设备中执行 所述程序时,所述程序使得计算机在所述通信装置或用户设备中执行实施例 1所述的 通信方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在通信装置或用户设备中执行实施例 1所述的通信方法。
本发明实施例还提供一种计算机可读程序,其中当在配置信息处理装置或用户设 备中执行所述程序时,所述程序使得计算机在所述配置信息处理装置或用户设备中执 行实施例 5所述的配置信息处理方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在配置信息处理装置或用户设备中执行如实施例 5 所述的配置信 息处理方法。
本发明实施例还提供一种计算机可读程序,其中当在配置信息处理装置或基站中 执行所述程序时,所述程序使得计算机在所述配置信息处理装置或基站中执行如实施 例 9、 实施例 10所述的配置信息处理方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在配置信息处理装置或基站中执行实施例 9、 实施例 10所述的配 置信息处理方法。
本发明实施例还提供一种计算机可读程序,其中当在配置信息处理装置或用户设 备中执行所述程序时,所述程序使得计算机在所述配置信息处理装置或用户设备中执 行实施例 11所述的配置信息处理方法。 本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在配置信息处理装置或用户设备中执行实施例 11所述的配置信息 处理方法。
由上述实施例可知, 本发明实施例提供了支持 D2D通信的 UE在进行蜂窝链路 恢复时触发的 RRC连接重建立流程中、或在切换过程中对已配置的 D2D通信的配置 信息的处理方法, 通过本发明实施例, 可以实现切换过程中的部分信令配置, 降低了 信令开销, 此外, 避免了 RRC连接重建立时 UE在与基站断开联系的同时使用之前 的配置进行 D2D通信所带来的干扰和能耗 /信令开销问题。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。 本发明 涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实现 上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。本发 明还涉及用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储器 等。 以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员应该清楚, 这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。

Claims

权利要求书
1、 一种通信方法, 所述方法包括: 用户设备在触发无线资源控制 (RRC)连接重 建过程时, 停止设备间直接 (D2D) 通信、 和 /或清空 D2D链路相关定时器和 /或计数 器。
2、一种配置信息处理方法, 所述方法包括: 用户设备在触发无线资源控制(RRC) 连接重建过程时, 释放设备间直接 (D2D) 通信的配置信息。
3、 根据权利要求 2所述的方法, 其中, 所述配置信息包括一种或一种以上的信 息: D2D通信的链路索引标识、 D2D通信的所用频率、 D2D通信所用带宽、 D2D通信的 无线网络临时标识 (RNTI )、 对端用户设备的小区 RNTI、 D2D 通信的使能指示、 D2D 通信的公共资源配置、静态 D2D通信的资源分配、所使用信标资源或对端用户设备的 信标资源、 D2D通信的测量配置、 D2D通信的链路安全算法和安全密钥。
4、 根据权利要求 2或 3所述的方法, 其中, 所述方法还包括: 在所述 RRC连接 重建成功后,在收到新的 D2D通信的配置信息前,不向重建小区发送 D2D通信的报告, 所述报告包括以下之一或一个以上:
D2D通信的链路测量结果、 D2D通信的通信请求、 D2D通信的通信偏好指示。
5、 一种通信装置, 所述装置包括:
第一触发单元, 所述第一触发单元用于触发 RRC连接重建流程;
第一处理单元, 所述第一处理单元用于用在触发 RRC连接重建流程后, 停止 D2D 通信、 和 /或清空 D2D链路相关定时器和 /或计数器。
6、 一种配置信息处理装置, 所述装置包括:
第二触发单元, 所述第二触发单元用于触发 RRC连接重建流程;
信息释放单元, 所述信息释放单元用于在触发 RRC连接重建过程后, 释放 D2D通 信的配置信息。
7、 根据权利要求 6所述的装置, 其中, 所述配置信息包括一种或一种以上的信 息: D2D通信的链路索引标识、 D2D通信的所用频率、 D2D通信所用带宽、 D2D通信的 无线网络临时标识 (RNTI )、 对端用户设备的小区 RNTI、 D2D 通信的使能指示、 D2D 通信的公共资源配置、静态 D2D通信的资源分配、所使用信标资源或对端用户设备的 信标资源、 D2D通信的测量配置、 D2D通信的链路安全算法和安全密钥。
8、 根据权利要求 6或 7所述的装置, 其中, 所述装置还包括: 连接重建单元, 所述连接重建单元用于进行 RRC连接重建;
第二处理单元, 所述第二处理单元用于在所述 RRC连接重建成功后, 在收到新的 D2D通信的配置信息前, 不向重建小区发送 D2D通信的报告, 所述报告包括以下之一 或一个以上:
D2D通信的链路测量结果、 D2D通信的通信请求、 D2D通信的通信偏好指示。
9、 一种用户设备, 所述用户设备包括权利要求 5所述的通信装置、 和 /或权利要 求 6至 8的任意一项权利要求所述的装置。
10、 一种配置信息处理方法, 所述方法包括:
在用户设备当前所属的源基站触发切换时,所述源基站将所述用户设备的 D2D通 信的配置信息和 /或用户设备上报的 D2D通信的报告信息发送给目标基站。
11、 根据权利要求 10所述的方法, 其中, 所述配置信息包括以下信息其中之一 或一个以上:
D2D通信使能指示、 D2D通信的测量配置、 D2D通信的链路索引标识、 D2D通信所 用频率、 D2D通信所用带宽、 半静态 D2D通信的资源分配、 所使用信标资源或对端用 户设备的信标资源; D2D通信的链路安全算法和 /或新的派生安全密钥参数;
所述报告信息包括: D2D通信的链路测量结果、 和 /或 D2D通信的通信偏好指示。
12、 根据权利要求 10或 11所述的方法, 其中, 所述配置信息和 /或报告信息通 过切换请求消息发送给所述目标基站;
其中, 通过所述源基站与所述目标基站之间的 X2接口发送; 或者通过 S 1接口发 送。
13、 根据权利要求 10或 11所述的方法, 其中, 所述方法还包括:
接收所述目标基站返回的所述目标基站根据接收的所述配置信息确定的新的 D2D 通信的配置信息。
14、 根据权利要求 13所述的方法, 其中, 所述方法还包括: 将接收到的所述新 的 D2D通信的配置信息向所述用户设备发送。
15、 一种配置信息处理方法, 所述方法包括:
目标基站接收源基站发送的用户设备的 D2D通信的配置信息和 /或用户设备上报 的 D2D通信的报告信息; 根据接收的所述配置信息配置新的 D2D通信的配置信息;
将所述新的 D2D通信的配置信息向所述源基站发送。
16、 一种配置信息处理方法, 所述方法包括:
用户设备接收源基站发送的目标基站为所述用户设备配置的新的 D2D 通信的配 置信息。
17、 根据权利要求 16所述的方法, 其中, 所述新的 D2D通信的配置信息通过切 换命令通知所述用户设备。
18、 根据权利要求 16或 17所述的方法, 其中, 所述方法还包括:
根据接收到的所述新的 D2D通信的配置信息和已保存的 D2D通信的配置信息来应 用 D2D通信的配置信息。
19、 一种配置信息处理装置, 所述装置包括:
第一发送单元, 所述第一发送单元用于在用户设备当前所属的源基站触发切换 时, 将所述用户设备的 D2D通信的配置信息和 /或用户设备上报的 D2D通信的报告信 息发送给目标基站。
20、 根据权利要求 19所述的装置, 其中, 所述配置信息包括以下信息其中之一 或一个以上:
D2D通信使能指示、 D2D通信的测量配置、 D2D通信的链路索引标识、 D2D通信所 用频率、 D2D通信所用带宽、 半静态 D2D通信的资源分配、 所使用信标资源或对端用 户设备的信标资源; D2D通信的链路安全算法和 /或新的派生安全密钥参数;
所述报告信息包括 D2D通信的链路测量结果、 和 /或 D2D通信的通信偏好指示。
21、 根据权利要求 19或 20所述的装置, 其中, 所述第一发送单元通过切换请求 消息将所述配置信息和 /或报告信息发送给所述目标基站; 其中, 通过所述源基站与 所述目标基站之间的 X2接口发送; 或者通过 S 1接口发送。
22、 根据权利要求 19或 20所述的装置, 其中, 所述装置还包括:
第一接收单元,所述第一接收单元用于接收所述目标基站返回的所述目标基站根 据接收的所述配置信息确定的新的 D2D通信的配置信息。
23、 根据权利要求 22所述的装置, 其中, 所述装置还包括:
第二发送单元,所述第二发送单元用于将接所述第一接收单元接收到的所述新的 D2D通信的配置信息向所述用户设备发送。
24、 根据权利要求 23所述的装置, 其中, 所述第二发送单元通过切换命令将所 述新的 D2D通信的配置信息通知所述用户设备。
25、 一种基站, 所述基站包括权利要求 19-24的任一项权利要求所述的装置。
26、 一种配置信息处理装置, 所述装置包括:
第二接收单元,所述第二接收单元用于接收源基站发送的用户设备的 D2D通信的 配置信息和 /或用户设备上报的 D2D通信的报告信息;
第二处理单元,所述第二处理单元用于根据所述第二接收单元接收的所述配置信 息配置新的 D2D通信的配置信息;
第三发送单元,所述第三发送单元用于将所述第二处理单元配置的新的 D2D通信 的配置信息向所述源基站发送。
27、 一种基站, 所述基站包括权利要求 26所述的装置。
28、 一种配置信息处理装置, 所述装置包括:
第三接收单元,所述第三接收单元用于接收源基站发送的目标基站为所述用户设 备配置的新的 D2D通信的配置信息。
29、 根据权利要求 28所述的装置, 其中, 所述装置还包括信息处理单元, 所述 信息处理单元用于根据接收到的所述新的 D2D通信的配置信息和已保存的 D2D通信的 配置信息来应用 D2D通信的配置信息。
30、 一种用户设备, 所述基站包括权利要求 28或 29所述的装置。
31、 一种通信系统, 包括基站, 其中, 所述通信系统还包括权利要求 9所述的 用户设备。
32、 一种通信系统, 所述通信系统包括权利要求 25所述的源基站和权利要求 27 所述的目标基站。
33、 根据权利要求 32所述的通信系统, 其中, 所述通信系统还包括权利要求 30 所述的用户设备。
34、 一种计算机可读程序, 其中当在通信装置或用户设备中执行所述程序时, 所述程序使得计算机在所述通信装置或用户设备中执行如权利要求 1 所述的通信方 法。
35、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计 算机在通信装置或用户设备中执行如权利要求 1所述的通信方法。
36、 一种计算机可读程序, 其中当在配置信息处理装置或用户设备中执行所述 程序时,所述程序使得计算机在所述配置信息处理装置或用户设备中执行如权利要求 2-4的任一项权利要求所述的配置信息处理方法。
37、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计 算机在配置信息处理装置或用户设备中执行如权利要求 2-4的任一项权利要求所述的 配置信息处理方法。
38、 一种计算机可读程序, 其中当在配置信息处理装置或基站中执行所述程序 时, 所述程序使得计算机在所述配置信息处理装置或基站中执行如权利要求 10-15的 任一项权利要求所述的配置信息处理方法。
39、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计 算机在配置信息处理装置或基站中执行如权利要求 10-15的任一项权利要求所述的配 置信息处理方法。
40、 一种计算机可读程序, 其中当在配置信息处理装置或用户设备中执行所述 程序时,所述程序使得计算机在所述配置信息处理装置或用户设备中执行如权利要求 16-18的任一项权利要求所述的配置信息处理方法。
41、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计 算机在配置信息处理装置或用户设备中执行如权利要求 16-18的任一项权利要求所述 的配置信息处理方法。
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