WO2018027805A1 - Procédé d'acquisition de ressource et dispositif associé - Google Patents

Procédé d'acquisition de ressource et dispositif associé Download PDF

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Publication number
WO2018027805A1
WO2018027805A1 PCT/CN2016/094650 CN2016094650W WO2018027805A1 WO 2018027805 A1 WO2018027805 A1 WO 2018027805A1 CN 2016094650 W CN2016094650 W CN 2016094650W WO 2018027805 A1 WO2018027805 A1 WO 2018027805A1
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WIPO (PCT)
Prior art keywords
message
receiving
sent
cell
communication
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PCT/CN2016/094650
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English (en)
Chinese (zh)
Inventor
张亮亮
张向东
常俊仁
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华为技术有限公司
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Priority to PCT/CN2016/094650 priority Critical patent/WO2018027805A1/fr
Publication of WO2018027805A1 publication Critical patent/WO2018027805A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a resource acquisition method and related device.
  • D2D (Device-to-Device) communication technology is a technology for direct communication between terminals and terminals. Different from the existing cellular communication technology, the data of the user equipment does not need to be transmitted through the base station, but is directly transmitted through the air interface between the terminal and the terminal, thereby reducing the delay of network forwarding.
  • a typical application scenario is a public safety scenario, such as communication between fire brigade members.
  • D2D also needs to support unicast communication (ie 1-to-1 communication), that is, the D2D UE directly transmits D2D data to some other UE.
  • UE-to-Network Relay (User-to-Network Relay) is introduced to provide network services for UEs outside the coverage of the base station.
  • the UE A 101 in FIG. 1 is a Relay UE, and may provide a network service for the UE B 202 , and forward the downlink data of the eNB to the UE B, and then forward the uplink data of the UE B to the eNB, and the UE B. It is called Remote UE.
  • the Remote UE communicates with the relay UE to implement data communication with the base station through the relay UE relay.
  • the remote UE needs to maintain the connection with the base station.
  • the remote UE compares power consumption (requires receiving various base stations). Signaling). Therefore, it is desirable that the remote UE can ensure that the low power consumption does not require too much contact with the base station, and the base station can provide the remote UE information from the relay side as soon as possible.
  • the Relay UE moves, it may switch to other eNBs at any time.
  • the relay UE and the remote UE should obtain communication resources from where to communicate. issues that need resolving.
  • D2D communication In D2D communication, first, without considering the mobility scenario of the Relay UE, there is no definition cut. What resources are used by the Relay UE and the Remote UE during the exchange. If the intra-frequency handover is used, the resources allocated by the original base station are used, and after the handover to the target base station, the resource may be used by the target base station for Uu communication, or has been allocated separately, then the resource will be used in the target cell. The user terminal causes interference. If it is inter-frequency handover, it is impossible to use F2 to access the target base station on the one hand and F1 to communicate with the Remote UE on the other hand, resulting in the first device and the second device. The device cannot perform normal D2D communication.
  • the Remote UE uses the pre-configured resource to communicate with the Relay UE. If the Remote UE also uses the pre-configured resource to communicate with the Relay UE within the coverage, it will interfere with the Uu. Port communication, because the pre-configured resources are used by the base station to communicate with the user equipment within the coverage.
  • the technical problem to be solved by the embodiment of the present invention is to provide a resource obtaining method, in which, in a second UE (Relay UE) handover process, a first device (Remote UE) may be received from the received first message.
  • the first communication resource configuration is obtained, and when the first device (Remote UE) is in the eNB coverage, the first device (Remote UE) can obtain the first communication resource configuration by pre-configuring the resource.
  • the first device and the second device can obtain the first communication resource to communicate from the first communication resource configuration, so as to solve the problem that the relay UE in the handover process and the Remote UE that provides the relay service cannot be performed in the prior art.
  • the problem of resource acquisition in which, in a second UE (Relay UE) handover process, a first device (Remote UE) may be received from the received first message.
  • the first communication resource configuration is obtained, and when the first device (Remote UE) is in the eNB coverage, the first device
  • an embodiment of the present invention provides a resource obtaining method, where the resource acquiring method is applied to a first device, where the method includes:
  • the first device Determining, by the first device, a first communication resource configuration that the first device communicates with the second device by using a pre-configured resource or from the received first message; the second device is configured to The first device provides a relay service;
  • the first device obtains a first communication resource to communicate with the second device according to the first communication resource configuration.
  • the first device receives a second message of the second device, where the second message is used to indicate that the first device utilizes the first communication resource and the The second device is configured to communicate; or the second device is configured to instruct the first device to communicate with the second device by using the first communication resource when a preset condition is met; wherein the preset The condition is any one or more of the following: the second device is in the process of switching from the third device to the fourth device; or The second device fails to access the fourth device; or the second device is in the radio link failure RLF; or the second device performs a radio link re-establishment process; or the second device wireless chain After the road re-establishment fails, the third device is a serving node of the second device, and the fourth device is a target node that is switched by the second device.
  • the second device may send a second message to the first device during the handover process, to indicate that the first device uses the first communication resource to communicate with the second device; or the second device is in the fourth access
  • the second device is in the radio link failure RLF
  • the second device performs the radio link re-establishment procedure, or the second device radio link re-establishment fails
  • the second device may also send the second device. a message to instruct the first device to communicate with the second device using the first communication resource. This allows the second device to implement D2D communication with the first device even during the move.
  • the method further includes:
  • the first device receives a third message sent by the second device, where the third message is used to instruct the first device to stop communication with the second device.
  • the second device fails to switch, or fails to communicate with the base station or the like, the second device sends a third message to the first device, indicating that the first device stops communication with itself, or Only messages and the like sent by the second device are received.
  • the method further includes:
  • the first device receives the fourth message of the second device in the first preset time, the first device resumes communication with the second device; if the first preset time is The first device does not receive the fourth message, the first device releases a communication link with the second device; the fourth message is used to indicate that the first device recovers and the second device Communication between devices.
  • a timer of the first preset time may be started, and the timer has not received the fourth message sent by the second device, and the The communication link resource may release the communication link, and if the fourth message indicating that the first device resumes communication is received if the timer has not timed out, the first device resumes communication with the second device.
  • the method further includes: the first device reselecting the new device as the second device.
  • the first The device reselects the new device as the second device that provides the relay service for itself, thereby ensuring that the D2D communication on the first device is not affected by the original second device.
  • the first device may actively send the seventh message to the second device to actively enter the low power mode, or the first device receives the eighth message sent by the second device. Then passively enter the low power mode.
  • the first device is in a low power mode, and the low power mode refers to at least one of the following:
  • the first device resides under the second device; or the first device only receives information sent by the second device; or the first device only receives signaling and sent by the second device And/or data; or, the first device only receives signaling and/or data sent by the D2D communication device; or the first device receives signaling and/or data sent by the second device; or The first device receives the signaling and/or data sent by the D2D communication device; or the first device receives the paging message sent by the second device; or the first device receives the second device to send Or the first device receives the synchronization signal sent by the second device; or the first device does not receive the system message sent by the cell; or the first device does not receive the cell transmission Or the first device does not receive the synchronization information sent by the cell; or the first device receives the information sent by the second device, but does not perform at least one of the following operations: camping in a cell Receiving a system message sent by the cell, receiving a paging message sent by the cell, receiving a synchronization
  • the embodiment of the present invention further provides another resource obtaining method, where the resource obtaining method is applied to a second device, where the method includes:
  • the second device receives a ninth message sent by the third device, where the ninth message provides the first device with the first communication resource configuration;
  • the second device sends a first message to the first device, where the first message includes a first communication
  • the resource is configured to enable the first device to obtain the first communication resource to communicate with the second device according to the first communication resource configuration
  • the second device provides a relay service for the first device and the third device.
  • the ninth message is a handover command, and the ninth message is further used to indicate that the second device is handed over from the third device to the fourth device.
  • the ninth message sent by the third device to the second device may further indicate that the second device switches from the third device to the fourth device in addition to the first communication resource configuration.
  • the method further includes: the second device sending a second message to the first device; the second message is used to indicate that the first device uses the first communication resource to communicate; or And the first communication resource is used for communication when the first device is in a preset situation, where the preset situation includes any one or more of the following: the second device switches from the third device to the third device.
  • the preset situation includes any one or more of the following: the second device switches from the third device to the third device.
  • the second device detects that the wireless link fails, or when the second device receives the switching command sent by the third device, or when the second device
  • the device is performing radio link re-establishment, or when the second device is transmitting an RRC connection re-establishment message or after.
  • This embodiment can enable the second device to perform D2D communication with the first device during the moving process.
  • the method further includes: the second device sending a third message to the first device, where the third message is used to indicate that the first device stops transmitting data to the second device .
  • the second device fails to switch, or fails to communicate with the base station or the like, the second device sends a third message to the first device, indicating that the first device stops communication with itself, or Only messages and the like sent by the second device are received.
  • the method further includes: the second device sending a fourth message to the first device, where the fourth message is used to indicate that the first device recovers and the second device Communication between. After the second device returns to normal, the second device may also instruct the first device to resume D2D communication with itself.
  • the second device receives a seventh message sent by the first device, where the seventh message is used to indicate to the second device that the first device is located in a low power The consumption mode; or the second device sends an eighth message to the first device, where the eighth message is used to indicate the location The first device enters the low power mode.
  • the first device is in a low power mode, and the low power mode refers to at least one of the following:
  • the first device resides under the second device; or the first device only receives information sent by the second device; or the first device only receives signaling and sent by the second device And/or data; or, the first device only receives signaling and/or data sent by the D2D communication device; or the first device receives signaling and/or data sent by the second device; or The first device receives the signaling and/or data sent by the D2D communication device; or the first device receives the paging message sent by the second device; or the first device receives the second device to send Or the first device receives the synchronization signal sent by the second device; or the first device does not receive the system message sent by the cell; or the first device does not receive the cell transmission Or the first device does not receive the synchronization information sent by the cell; or the first device receives the information sent by the second device, but does not perform at least one of the following operations: camping in a cell Receiving a system message sent by the cell, receiving a paging message sent by the cell, receiving a synchronization
  • the embodiment of the present invention further provides a resource obtaining method, where the resource obtaining method is applied to a third device, where the method includes:
  • the third device sends a ninth message to the second device, where the ninth message is used to provide the second device with the first communication resource that the second device communicates with the first device;
  • the second device provides a relay service for the third device and the first device.
  • the ninth message is a handover command, and the ninth message is further used to indicate that the second device is to be switched from the third device to the fourth device.
  • the embodiment of the present invention further provides a first device, where the first device may include:
  • a first processing unit configured to obtain, by using a pre-configured resource or a received first message, a first communication resource configuration in which the first device communicates with the second device; the second device is configured to The first device provides a relay service;
  • a second processing unit configured to obtain, according to the first communication resource configuration, a first communication resource to communicate with the second device.
  • the first embodiment of the fourth aspect further includes: a first receiving unit, configured to receive a second message of the second device, where the second message is used to indicate that the first device utilizes the The first communication resource is in communication with the second device; or the second message is used to instruct the first device to communicate with the second device by using the first communication resource when a preset condition is met
  • the preset condition is any one or more of the following: the second device is in the process of switching from the third device to the fourth device; or the second device fails to access the fourth device; or The second device is in a radio link failure RLF; or the second device performs a radio link re-establishment procedure; or, after the second device radio link re-establishment fails; wherein the third device And being a serving node of the second device, where the fourth device is a target node that is switched by the second device.
  • the method further includes:
  • the second receiving unit is configured to receive a third message sent by the second device, where the third message is used to instruct the first device to stop the communication with the second device.
  • the method further includes:
  • a third processing unit configured to resume communication with the second device if the first device receives the fourth message of the second device in the first preset time
  • a fourth processing unit configured to release a communication link with the second device if the first device does not receive the fourth message within the first preset time.
  • the method further includes:
  • the fifth processing unit is configured to reselect the new device as the second device.
  • the method further includes:
  • a first sending unit configured to send, to the second device, a seventh message, where the seventh message is used to indicate to the second device that the first device is in a low power consumption mode; or a fifth receiving unit is configured to: Receiving And an eighth message sent by the second device, where the eighth message is used to indicate that the first device enters a low power mode.
  • the first device is in a low power mode, and the low power mode refers to at least one of the following:
  • the first device resides under the second device; or the first device only receives information sent by the second device; or the first device only receives signaling and sent by the second device And/or data; or, the first device only receives signaling and/or data sent by the D2D communication device; or the first device receives signaling and/or data sent by the second device; or The first device receives the signaling and/or data sent by the D2D communication device; or the first device receives the paging message sent by the second device; or the first device receives the second device to send Or the first device receives the synchronization signal sent by the second device; or the first device does not receive the system message sent by the cell; or the first device does not receive the cell transmission Or the first device does not receive the synchronization information sent by the cell; or the first device receives the information sent by the second device, but does not perform at least one of the following operations: camping in a cell Receiving a system message sent by the cell, receiving a paging message sent by the cell, receiving a synchronization
  • the embodiment of the present invention further provides a second device, where the second device includes:
  • a sixth receiving unit configured to receive a ninth message sent by the third device, where the ninth message provides a first communication resource configuration for the second device;
  • a second sending unit configured to send a first message to the first device, where the first message includes a first communication resource configuration, so that the first device obtains the first according to the first communication resource configuration
  • the communication resource communicates with the second device
  • the second device provides a relay service for the first device and the third device.
  • the ninth message is a handover command, and the ninth message is further used to indicate that the second device is handed over from the third device to the fourth device.
  • the method further includes:
  • a third sending unit configured to send a second message to the first device, where the second message is used to indicate that the first device uses the first communication resource to communicate; or, when the second device has a preset condition Sending, by the second device, the second message to the first device, to indicate that the first device uses the first communication resource to perform communication, where the preset situation includes any one or more of the following:
  • the second device is in the process of switching from the third device to the fourth device; or when the second device detects that the wireless link fails, or when the second device receives the third device to send After the handover command, or when the second device is performing radio link re-establishment, or when the second device is transmitting an RRC connection re-establishment message or after.
  • the method further includes:
  • a fourth sending unit configured to send a third message to the first device, where the third message is used to instruct the first device to stop transmitting data to the second device.
  • the method further includes:
  • a fifth sending unit configured to send a fourth message to the first device, where the fourth message is used to indicate that the first device resumes communication with the second device.
  • the method further includes:
  • a seventh receiving unit configured to receive a seventh message sent by the first device, where the seventh message is used to indicate that the first device is in a low power consumption mode; or a ninth sending unit is configured to The first device sends an eighth message, where the eighth message is used to indicate that the first device enters a low power mode.
  • the first device is in a low power mode, and the low power mode refers to at least one of the following:
  • the first device resides under the second device; or the first device only receives information sent by the second device; or the first device only receives signaling and sent by the second device And/or data; or, the first device only receives signaling and/or data sent by the D2D communication device; or the first device receives signaling and/or data sent by the second device; or The first device receives signaling and/or data sent by the D2D communication device; or the first device receives the second The paging message sent by the device; or the first device receives the system message sent by the second device; or the first device receives the synchronization signal sent by the second device; or the first device Not receiving the system message sent by the cell; or the first device does not receive the paging message sent by the cell; or the first device does not receive the synchronization information sent by the cell; or the first device receives the The information sent by the two devices, but does not perform at least one of the following operations: camping in a cell, receiving a system message sent by the cell, receiving a paging message
  • the embodiment of the present invention further provides a third device, where the third device includes:
  • a sending unit configured to send a ninth message to the second device, where the ninth message is used to provide the second device with the first communication resource that the second device and the first device communicate with;
  • the second device provides a relay service for the third device and the first device.
  • the ninth message is a handover command, and the ninth message is further used to indicate that the second device is switched from the third device to the fourth device.
  • the Relay UE when the Remote UE communicates with the Relay UE, the Relay UE obtains the target node provided by the handover from the received first message in a handover state or an abnormal situation.
  • the first communication resource configuration ensures normal communication between the Remote UE and the Relay UE.
  • the first communication resource configuration is obtained by pre-configuring resources to perform normal D2D communication with the Relay UE.
  • FIG. 3 is a flowchart of an embodiment of a resource acquisition method according to an embodiment of the present invention.
  • FIG. 4 is a signaling interaction diagram of a resource acquisition method according to an embodiment of the present invention.
  • FIG. 5 is another flowchart of a method for acquiring a resource according to an embodiment of the present invention.
  • FIG. 6 is another signaling interaction diagram of a resource acquiring method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a first device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a second device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a third device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of hardware of a device according to an embodiment of the present invention.
  • the first device in this embodiment may be the Remote UE 201 in FIG. 2, and the second device may be the Relay UE 202 in FIG. 2.
  • the third device may be the second device or the serving base station 203 of the first device (illustrated by the base station eNB in FIG. 2), and the fourth device may be the target device switched by the second device (not shown in FIG. 2).
  • the embodiment of the present invention may be applied to, for example, a scenario in which the first device is outside the coverage of the third device and the second device is in the coverage of the third device, and may also be applied to the first device and the second device. Scenes that are all within the coverage of the third device.
  • FIG. 3 is a flowchart of a method for acquiring a resource in an embodiment of the present invention.
  • the method in this embodiment may include:
  • the first device and the second device communicate by using communication resources provided by the third device.
  • the first device is a Remote UE
  • the second device is a Relay UE
  • the third device may be a serving base station of the Relay UE. If the second device does not perform the handover or the normal device, the first device Both the second device and the second device can communicate using the resources provided by the third device.
  • FIG. 4 a signaling interaction diagram between a first device (Remote UE), a second device (Relay UE), a third device (Source eNB), and a fourth device (Target eNB) in this embodiment is shown.
  • This step is step 401 in FIG.
  • the third device sends configuration information of the first device and the second device to the fourth device, so that the second device can be switched from the third device to the fourth device, or the second device can continue to communicate with the first device normally. .
  • the communication resource for communication between the first device and the second device may be provided by the fourth device during the second device switching process.
  • the fourth device Relay UE switches the target base station.
  • the third device may send configuration information of the first device and/or the second device, such as a device identifier, to the target base station, so that the second device switches to the target base station, and is targeted by the target device.
  • the base station provides a first communication resource configuration for the second device. Referring to FIG. 4, the third device transmits configuration information of the first device and the second device to the target device in step 402.
  • the configuration information of the first device and/or the second device may specifically include at least one of the following:
  • the L2 identifier of the UE for example, the data source layer-2 ID (Source Layer-2 ID), used to identify the sender transmitting data in the communication link, or the destination layer-2 ID (Destination Layer-2 ID), To identify the target that receives data in the communication link.
  • the data source layer-2 ID (Source Layer-2 ID)
  • the destination layer-2 ID (Destination Layer-2 ID)
  • Table 1 is used to indicate the requirements and meanings of the above various configuration information.
  • the identifier of the second device includes the following four items: 1) UE paging identity, which includes S-IMTS and IMSI. 2) MME UE S1AP ID. 3) eNB UE X2AP ID. 4) The L2 identifier of the UE, such as the Data Source-2 ID, which is used to identify the sender of the data in the side link communication, or the target layer. -2ID (Destination Layer-2 ID), used to identify the target of the data in the side link communication.
  • Data Source-2 ID which is used to identify the sender of the data in the side link communication, or the target layer.
  • -2ID Differentation Layer-2 ID
  • the type of the first device may be a relay UE or a remote UE, in order to distinguish whether the device is a device providing a relay, and if so, a relay device, if not Is the remote device (remote UE).
  • the type of the second device for example, may be a relay UE or a remote UE, in order to distinguish whether the device is a device providing a relay, and if so, a relay device, if not It is the remote device.
  • step S302 after receiving the information of the first device and the second device that are sent by the third device, the fourth device sends the provided first communication resource to the third device when the step 403 is configured, thereby being the first
  • the device and the second device provide a first communication resource for communication.
  • the first communication resource can be used for communication between the first device and the second device in the process of the second device switching from the third device to the fourth device, and can also be used to meet the preset condition.
  • the device and the first device communicate with each other, wherein the preset condition may be any one of the following: the second device fails to access the fourth device; or the second device is in the radio link failure RLF; or The second device performs a radio link re-establishment procedure; or, after the second device radio link re-establishment fails.
  • the third device sends a ninth message to the second device, where the ninth message is used to provide the second device with the first communication resource configuration that the second device and the first device communicate.
  • the third device may send a ninth message to the second device in step 404, where the ninth message may be a handover command indicating the second
  • the device is switched from the third device to the fourth device, and the first communication resource configuration provided by the fourth device in step S302 is also provided to the second device.
  • the second device may further return a response message to the third device after receiving the ninth message, to notify the third device that the switching command has been received by itself and start performing the handover.
  • the second device sends a first message to the first device, where the first message includes a first communication resource configuration, so that the first device obtains the first communication resource according to the first communication resource configuration. Communicate with the second device.
  • the first device sends a first message to the first device, where the first message also includes the first communication resource configuration provided in step S302, so that the first device is configured according to the first communication resource.
  • the configuration obtains the first communication resource to communicate with the second device.
  • the first message may simultaneously indicate that the first device is directly used when the preset condition is met.
  • the first communication resource provided in the first communication resource configuration is in communication with the second device, where the preset situation may include any one of the following: the second device is in the process of switching from the third device to the fourth device; or The second device fails to access the fourth device; or the second device is in the radio link failure RLF; or the second device performs a radio link re-establishment procedure; or the second device is wireless After the link re-establishment fails.
  • the first device obtains, by the first message received, a first communication resource configuration in which the first device communicates with the second device.
  • the first message may be sent by the second device to the first device, and the first device may obtain the first communication resource configuration by using the first message sent by the second device, where the first message is received.
  • the first communication resource configuration for the first device to communicate with the second device is directly indicated.
  • the second device is a device with a relay capability, and the second device is configured to provide a relay service for the first device (ie, Relay UE A in FIG. 3).
  • the second device may be implemented in any one of the following: a user equipment, a base station, or a serving base station of the first device.
  • the first message may be sent by the service device of the first device to the first device, and the first device directly receives the first message sent by the service device, and the first communication resource may also be obtained.
  • the first device obtains, according to the first communication resource configuration, a first communication resource to communicate with the second device.
  • the first device may obtain the first communication resource to communicate with the second device according to the first communication resource configuration.
  • the first device may directly communicate with the second device using the first communication resource indicated therein at step 406.
  • step S306 may further include:
  • the first device receives the second message of the second device.
  • the second message is used to indicate that the first device uses the first communication resource to communicate with the second device; or the second message is used to indicate that the first device meets a preset. In the condition, the first communication resource is used to communicate with the second device.
  • the second device may further send a second message to the first device, where the second device indicates the first device.
  • the first communication resource is directly used to communicate with the second device during the second device handover.
  • the first device is further configured to use the first communication resource to communicate with the second device when the preset condition is met.
  • the preset condition may be any one or more of the following: the second device fails to access the fourth device; or the second device is in the radio link failure RLF; or the second device Performing a radio link re-establishment procedure; or, after the second device radio link re-establishment fails.
  • the method may further include:
  • the first device receives a third message sent by the second device, where the third message is used to instruct the first device to stop communication with the second device.
  • the second device fails to access the fourth device, or the second device is in the radio link failure RLF; or the second device performs a radio link re-establishment procedure; or the second device radio link
  • the second device may further send a third message to the first device, where the third message may be used to indicate that the first device stops communication with the second device.
  • the third message may indicate that the second device has an abnormal condition, the first device may stop transmitting data or a message to the second device, or the first device may only receive the message or data from the second device.
  • the method may further include:
  • the fourth message is used to indicate that the first device recovers communication with the second device. And the first device resumes communication with the second device.
  • the method may further include:
  • the first device If the first device does not receive the fourth message of the second device in the first preset time, the first device releases a communication link with the second device.
  • the first device may start a timer, and the time of the timer may be set to a first preset time (for example, 5 ms), and the first device determines whether the first device is received in the first preset time.
  • a fourth message sent by the second device where the fourth message indicates that the first device can resume communication with the second device.
  • the second device is restored to normal, and the first device is restored to the second device. Normal communication between devices. If the first device does not receive the fourth message sent by the second device within the first preset time, the second device does not return to the normal state within the preset time. In this case, in order to save communication resources, the first device may release a communication link with the second device.
  • the method may further include:
  • the first device reselects the new device as the second device.
  • the first device may further re-select the new device as the second device to provide a relay service for itself after releasing the communication link with the second device.
  • the resource acquiring method in the embodiment of the present invention may enable the Remote UE to communicate with the Relay UE even if the Relay UE is in a handover state or an abnormal situation occurs, for example, the second device is accessed.
  • the fourth device fails, the second device is in the radio link failure RLF, the second device performs the radio link re-establishment process, or after the second device radio link re-establishment fails, etc., the Remote UE and the Relay UE can be guaranteed. Normal D2D communication between.
  • FIG. 5 is a flowchart of another method embodiment of a resource acquiring method according to an embodiment of the present invention. This embodiment may include:
  • the third device sends a synchronization signal message or a system message to the second device.
  • the third device is a service device of the second device, and the second device may receive a synchronization signal or a system message sent by the third device, such as an SIB18 or SIB19 configuration, and includes a first communication resource configuration in the synchronization signal or the system message, where A first communication resource for communication between the second device and the first device is indicated in the first communication resource configuration.
  • the first device may be a low-power Remote UE in a low-power mode within the coverage.
  • the low power mode may refer to at least one of the following:
  • the first device is staying under the second device; or the first device only receives information sent by the second device; or the first device only receives the second device Signaling and/or data; or, the first device only receives signaling and/or data sent by the D2D communication device; or the first device receives signaling and/or data sent by the second device; Or the first device receives signaling and/or data sent by the D2D communication device; or the first device receives the a paging message sent by the second device; or the first device receives the system message sent by the second device; or the first device receives the synchronization signal sent by the second device; or The device does not receive the system message sent by the cell; or the first device does not receive the paging message sent by the cell; or the first device does not receive the synchronization information sent by the cell; or the first device receives the The information sent by the second device, but does not perform at least one of the following operations: camping in a cell, receiving a system message sent by the cell, receiving a paging message sent by
  • the first device in the low power mode usually does not directly communicate with the third device, but communicates with the second device, and communicates with the third device by means of the second device relay.
  • the first device when the first device resides under the second device, the first device performs at least one or more of the following operations: the first device only receives the information sent by the second device, or the first device only receives the information sent by the second device Signaling and/or data, or the first device only receives signaling and/or data sent by the D2D communication device, or the first device receives signaling and/or data sent by the second device, or the first device receives the D2D communication device Signaling and/or data sent, or the first device receives the paging message sent by the second device, or the first device receives the system message sent by the second device, or the first device receives the synchronization signal sent by the second device, or The first device does not receive the system message sent by the cell, or the first device does not receive the system message sent by the cell, or the first device performs the third
  • the “information” in the “first device only receives information sent by the second device” mentioned in this embodiment is signaling and/or data.
  • the signaling mentioned in the low power consumption mode in this embodiment for example, “receiving signaling sent by a D2D communication device”, “receiving signaling sent by a second device communication node”, etc., signaling is The paging message, or the system message, or the synchronization signal, or the reconfiguration message, or the second message mentioned in this embodiment, or the seventh message, etc., the "signaling" in this embodiment is not only Limited to the illustrated message.
  • the “system message sent by the receiving station”, the “paging message sent by the receiving station”, and the “synchronization sent by the receiving station” are base station devices, such as an eNB in LTE. , or a NodeB of WCDMA, or a BTS in GSM or CDMA, or a micro station, etc., this embodiment does not limit the type of base station of the station.
  • the “system message sent by the receiving cell” mentioned in this embodiment is equivalent to the system message sent by the receiving station, and the “paging message sent by the receiving cell” is equivalent to the paging message sent by the receiving station.
  • the "synchronization signal transmitted by the receiving cell” is equivalent to the synchronization signal transmitted by the receiving station.
  • D2D communication device refers to various D2D communication devices, for example, including the second device, or other D2D devices synchronized with the second device, or have the same synchronization with the second device.
  • S502 The first device obtains a first communication resource configuration that the first device communicates with the second device by using a pre-configured resource or from the received first message.
  • the second device After obtaining the first communication resource configuration in the synchronization signal and the system message sent by the third device, the second device sends the first message to the first device, and the second device transmits the first message to the first device by using the first message. Communication resource configuration.
  • the first message sent by the second device is also a synchronization signal or a system message.
  • the second device may resend the synchronization signal or the system message if the condition is met. For example, after receiving the wake-up signal broadcast by the first device in the coverage, the second device may send a first message to the first device to indicate the first communication resource configuration.
  • the second device may also periodically send a synchronization signal or a system message to the first device in the coverage area, and the first device may use the first communication resource and the second device after receiving the synchronization signal or the system message. establish connection.
  • the second device provides a relay service for the first device and the third device, and the second device may be Any of the following: a user equipment, a base station, or a serving base station of the first device.
  • the first device may also obtain the first communication resource configuration by pre-configuring resources.
  • the first communication resource configuration is indicated in the pre-configured resource, and the first device obtains the first communication resource by using the first communication resource configuration to communicate with the second device.
  • the first device obtains a first communication resource to communicate with the second device according to the first communication resource configuration.
  • the first device obtains the first communication resource configuration according to the synchronization signal or the system message sent by the second device, so that the communication resource that can communicate with the second device can be obtained according to the first communication resource configuration. Since there is a first communication resource configuration in the synchronization signal or system message, the first device can communicate using the synchronization signal or the communication resource indicated in the system message. Reference is made to step 603 in FIG.
  • the method may further include:
  • the first device sends a seventh message to the second device, where the seventh message is used to indicate to the second device that the first device is in a low power mode.
  • the first device in this embodiment may actively enter the low power mode and maintain normal D2D communication with the second device in the low power mode in some cases, for example, to save power or the like.
  • the first mode is that the first device actively performs the low power mode, and the first device sends a seventh message to the second device after entering the low power mode.
  • the seventh message is used to indicate to the second device that the first device is in a low power mode.
  • the first device receives an eighth message sent by the second device, where the eighth message is used to indicate that the first device enters a low power mode.
  • the first device passively enters the low power mode.
  • the eighth message may be sent by the second device to the first device, where the eighth message is used to indicate that the first device enters the low power mode.
  • the method may further include:
  • the second device sends configuration information of the first device to the third device.
  • the second device after the first device enters the low power mode, the second device sends the information of the first device to the third device, for example, the identifier of the first device.
  • the second device receives a tenth message sent by the third device, where the tenth message is used to indicate the second communication resource configuration.
  • the device may send a tenth message to the second device in step 605, where the second communication resource is indicated in the tenth message.
  • the second communication resource configuration provides a second communication resource for communication between the first device and the second device, so that the first device and the second device can also communicate using the second communication resource.
  • S508 The second device communicates with the first device by using the second communication resource.
  • the second device can immediately communicate with the first device by using the second communication resource according to the second communication resource configuration in the tenth message. Sending a fifth message to the first device.
  • the second device sends a fifth message to the first device, where the fifth message is used to indicate the second communication resource configuration.
  • the second device may further send a fifth message to the first device, and notify the first device of the second communication resource configuration provided by the third device, so that the first device can also use the second communication according to the second communication resource configuration.
  • the resource communicates with the second device. It can be understood that the first device can choose to communicate with the second device using the first communication resource or the second communication resource.
  • the method may further include:
  • S510 The first device receives a sixth message sent by the second device, where the sixth message is used to provide resource reconfiguration information that the first device communicates with the second device.
  • the second device sends a sixth message to the first device, where the sixth message is used to provide resource reconfiguration information for the first device to communicate with the second device. Then, after receiving the sixth message, the first device finds that the resource configuration has changed, and then performs resource reconfiguration according to the sixth message.
  • the low-power Remote UE in a case where the remote UE needs to switch to the low power mode, the low-power Remote UE can also be normally communicated with the Relay UE for which the relay service is provided.
  • FIG. 7 is a schematic structural diagram of a first device according to an embodiment of the present invention.
  • the first device may include:
  • the first processing unit 701 is configured to obtain, by using a pre-configured resource or from the received first message, a first communication resource configuration in which the first device communicates with the second device.
  • the second processing unit 702 is configured to obtain, according to the first communication resource configuration, a first communication resource to communicate with the second device.
  • the first message is sent by the service device or the second device of the first device to the first device; wherein the second device is a device with relay capability, and the second device is used for The first device provides a relay service.
  • the second device is any one of the following: a user equipment, a base station, or a serving base station of the first device.
  • the first device may further include:
  • a first receiving unit 703, configured to receive a second message of the second device, where the second message is used to indicate that the first device uses the first communication resource to communicate with the second device; Or the second message is used to indicate that the first device communicates with the second device by using the first communication resource when the preset condition is met; wherein the preset condition is any one of the following Or a plurality of: the second device is in the process of switching from the third device to the fourth device; or the second device fails to access the fourth device; or the second device is in the radio link failure RLF; Alternatively, the second device performs a radio link re-establishment process; or, after the second device radio link re-establishment fails; wherein the third device is a service device of the second device, the The four devices are target nodes for the second device to switch.
  • the first device may further include:
  • the second receiving unit 704 is configured to receive a third message sent by the second device, where the third message is used to instruct the first device to stop the communication with the second device.
  • the first device may further include:
  • the third processing unit 705 is configured to resume communication with the second device if the first device receives the fourth message of the second device in the first preset time;
  • the fourth processing unit 706 is configured to release a communication link with the second device if the first device does not receive the fourth message within the first preset time.
  • the first The device can also include:
  • the fifth processing unit 707 is configured to reselect the new device as the second device.
  • the first message sent by the second device is a synchronization message SSLS or a system message.
  • the first device may further include:
  • the third receiving unit 708 is configured to receive a fifth message sent by the second device, where the fifth message is used to indicate, to the first device, a second communication resource configuration that is in communication with the second device.
  • the first device may further include:
  • the sixth processing unit 709 is configured to obtain, according to the second communication resource configuration, a second communication resource to communicate with the second device.
  • the first device may further include:
  • the fourth receiving unit 710 is configured to receive a sixth message sent by the second device, where the sixth message is used to provide resource reconfiguration information that the first device communicates with the second device.
  • the first device may further include:
  • the first sending unit 711 is configured to send, to the second device, a seventh message, where the seventh message is used to indicate to the second device that the first device is in a low power mode; or
  • the fifth receiving unit 712 is configured to receive an eighth message sent by the second device, where the eighth message is used to indicate that the first device enters a low power mode.
  • the first device is in a low power mode, and the low power mode refers to at least one of the following:
  • the first device resides under the second device; or the first device only receives information sent by the second device; or the first device only receives signaling and sent by the second device And/or data; or, the first device only receives signaling and/or data sent by the D2D communication device; or the first device receives signaling and/or data sent by the second device; or The first device receives the signaling and/or data sent by the D2D communication device; or the first device receives the paging message sent by the second device; or the first device receives the second device to send Or the first device receives the synchronization signal sent by the second device; or the first device does not receive the system message sent by the cell; or the first device does not receive the cell transmission Or the first device does not receive the synchronization information sent by the cell; or the first device receives the information sent by the second device, but does not perform at least one of the following operations: camping in a cell , pick up Receiving the system message sent by the cell, receiving the paging message sent by the cell, receiving the synchron
  • FIG. 8 is a schematic structural diagram of a second device according to an embodiment of the present invention.
  • the second device may include:
  • a sixth receiving unit 801 configured to receive a ninth message sent by the third device, where the ninth message provides a first communication resource configuration for the second device;
  • a second sending unit 802 configured to send, to the first device, a first message, where the first message includes a first communication resource configuration, so that the first device obtains the first information according to the first communication resource configuration
  • a communication resource communicates with the second device.
  • the second device provides a relay service for the first device and the third device.
  • the third device may be: a service node or a control node of the second device or a service node of the first device.
  • the ninth message is used as a handover command, and the ninth message is further used to indicate that the second device switches from the third device to the fourth device.
  • the second device may further include:
  • a third sending unit 803, configured to send a second message to the first device, where the second message is used to indicate that the first device uses the first communication resource to communicate; or, when the second device appears to be preset And sending, by the second device, the second message to the first device, to indicate that the first device uses the first communication resource to perform communication, where the preset situation includes any one or more of the following: The process of switching from the third device to the fourth device; or when the second device detects that the wireless link fails, or when the second device receives the third device After the command is switched, or when the second device is performing radio link re-establishment, or when the second device is When the RRC connection re-establishment message is sent or after.
  • the second device may further include:
  • the fourth sending unit 804 is configured to send a third message to the first device, where the third message is used to instruct the first device to stop transmitting data to the second device.
  • the second device may further include:
  • the fifth sending unit 805 is configured to send a fourth message to the first device, where the fourth message is used to indicate that the first device resumes communication with the second device.
  • the first message is a synchronization message SSLS or a system message.
  • the second device may further include:
  • the sixth sending unit 806 is configured to send the information of the first device to the third device, and receive a tenth message returned by the third device, where the tenth message is used to indicate that the first device and the second device are A second communication resource configuration for communication.
  • the second device may further include:
  • the seventh processing unit 807 is configured to communicate with the first device by using the second communication resource.
  • the second device may further include:
  • the seventh sending unit 808 is configured to send, to the first device, a fifth message, where the fifth message is used to indicate, to the first device, a second communication resource that is in communication with the second device.
  • the second device may further include:
  • the eighth sending unit 809 is configured to send a sixth message to the first device, where the sixth message is used to provide resource reconfiguration information that the first device communicates with the second device.
  • the second device may further include:
  • a seventh receiving unit 810 configured to receive a seventh message sent by the first device, where the seventh message is used to indicate that the first device is in a low power mode;
  • the ninth sending unit 811 is configured to send an eighth message to the first device, where the eighth message is used to indicate that the first device enters a low power mode.
  • the first device is in a low power mode, and the low power mode refers to at least one of the following:
  • the first device resides under the second device; or the first device only receives information sent by the second device; or the first device only receives signaling and sent by the second device / or number Or the first device only receives signaling and/or data sent by the D2D communication device; or the first device receives signaling and/or data sent by the second device; or Receiving, by the device, signaling and/or data sent by the D2D communication device; or, the first device receiving the paging message sent by the second device; or the first device receiving the system sent by the second device
  • the first device receives the synchronization signal sent by the second device; or the first device does not receive the system message sent by the cell; or the first device does not receive the paging message sent by the cell.
  • the first device does not receive the synchronization information sent by the cell; or the first device receives the information sent by the second device, but does not perform at least one of the following operations: camping in a cell, receiving The system message sent by the cell receives the paging message sent by the cell, receives the synchronization signal sent by the cell, receives the system message sent by the station, receives the paging message sent by the station, and receives the paging message.
  • the synchronization signal sent by the neighbor cell, the same-frequency cell measurement, and the inter-frequency cell measurement; or the first device receives the information sent by the D2D communication device, but does not perform at least one of the following operations: camping in a cell, receiving The system message sent by the cell receives the paging message sent by the cell, receives the synchronization signal sent by the cell, receives the system message sent by the station, receives the paging message sent by the station, and receives the synchronization signal sent by the station to measure the neighbor cell, and the same frequency cell measurement , inter-frequency cell measurement.
  • FIG. 9 is a schematic structural diagram of a third device according to an embodiment of the present invention.
  • the third device may include:
  • the tenth sending unit 901 is configured to send, to the second device, a ninth message, where the ninth message is used to provide, by the second device, the first communication resource that the second device communicates with the first device;
  • the second device provides a relay service for the third device and the first device.
  • the ninth message is used as a handover command, and the ninth message is further used to indicate that the second device switches from the third device to the fourth device.
  • the ninth message is further configured to indicate a second communication resource configuration for communication between the first device and the second device, where the first node is in a low power consumption mode.
  • FIG. 5 is a hardware structural diagram of a device according to an embodiment of the present invention.
  • the device 100 can implement the functions of the first device, the second device, or the third device.
  • the device 100 may include a memory 1001, a transceiver 1002, and the foregoing
  • the memory 1001 is configured to store a set of program instructions
  • the processor 1003 is configured to invoke program instructions stored by the memory 1001 to implement a plurality of units in the first device, the second device, or the third device.
  • the processor 1003 may include a first processing unit 701 and a second processing unit 702.
  • the device is a first device, and is used to implement the function of the first device.
  • the processor 1003 may include a sixth receiving unit 801 and a second sending unit 802.
  • the device is configured to implement the function of the second device.
  • the tenth sending ninth unit 901 may be included in the processor 503.
  • the device 100 is configured to implement the functions of the third device.
  • the processor 1003 may be a central processing unit (CPU) or a network processor (English: Network Processor, NP for short), and the memory 1001 may be a random access memory.
  • the internal memory of the random access memory (RAM) type, the transceiver 1002 may include a common physical interface, and the physical interface may be an Ethernet (Ethernet) interface or an Asynchronous Transfer Mode (ATM) interface.
  • the above processor, transceiver and memory can be integrated into one or more independent circuits or hardware, such as an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit

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Abstract

La présente invention se rapporte, dans un mode de réalisation, à un procédé d'acquisition de ressources et à un dispositif associé. Le procédé d'acquisition de ressource est appliqué à un premier dispositif et le procédé comprend les étapes suivantes : le premier dispositif obtient une première configuration de ressource de communication pour le premier dispositif pour communiquer avec un second dispositif, au moyen d'une préconfiguration d'une ressource ou d'un premier message reçu ; selon la première configuration de ressource de communication, le premier dispositif obtient une première ressource de communication de sorte à communiquer avec le second dispositif. Au moyen des modes de réalisation de la présente invention, un problème peut être résolu selon lequel, dans l'état de la technique, des ressources ne peuvent pas être acquises pour un équipement utilisateur (UE) relais dans un processus de transfert intercellulaire et son équipement utilisateur distant pour fournir un service de relais.
PCT/CN2016/094650 2016-08-11 2016-08-11 Procédé d'acquisition de ressource et dispositif associé WO2018027805A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114641089A (zh) * 2020-12-15 2022-06-17 华为技术有限公司 一种通信方法、装置及***
WO2023201521A1 (fr) * 2022-04-19 2023-10-26 富士通株式会社 Procédé d'envoi d'informations de défaillance, procédé de réception, appareil et système

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104812076A (zh) * 2014-01-27 2015-07-29 中兴通讯股份有限公司 设备到设备业务资源配置方法和装置
CN105101430A (zh) * 2014-05-08 2015-11-25 中兴通讯股份有限公司 D2d资源的配置、分配方法及装置
CN105578382A (zh) * 2014-11-06 2016-05-11 中兴通讯股份有限公司 资源的获取、配置方法及装置，资源池的配置方法及装置
CN105744549A (zh) * 2016-02-03 2016-07-06 宇龙计算机通信科技(深圳)有限公司 一种传输路径的切换方法、终端和***

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104812076A (zh) * 2014-01-27 2015-07-29 中兴通讯股份有限公司 设备到设备业务资源配置方法和装置
CN105101430A (zh) * 2014-05-08 2015-11-25 中兴通讯股份有限公司 D2d资源的配置、分配方法及装置
CN105578382A (zh) * 2014-11-06 2016-05-11 中兴通讯股份有限公司 资源的获取、配置方法及装置，资源池的配置方法及装置
CN105744549A (zh) * 2016-02-03 2016-07-06 宇龙计算机通信科技(深圳)有限公司 一种传输路径的切换方法、终端和***

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114641089A (zh) * 2020-12-15 2022-06-17 华为技术有限公司 一种通信方法、装置及***
WO2023201521A1 (fr) * 2022-04-19 2023-10-26 富士通株式会社 Procédé d'envoi d'informations de défaillance, procédé de réception, appareil et système

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