WO2018027805A1 - 资源获取方法及相关设备 - Google Patents
资源获取方法及相关设备 Download PDFInfo
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- 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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- 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
本发明实施例公开了一种资源获取方法及相关设备,其中,一种资源获取方法包括:获取方法应用于第一设备上,该方法包括:所述第一设备通过预配置资源的方式或从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置;所述第一设备根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。采用本发明实施例,可以现有技术中无法为切换过程中的Relay UE及其提供中继服务的Remote UE进行资源获取的问题。
Description
本发明涉及通信技术领域,特别是涉及一种资源获取方法及相关设备。
目前,蜂窝通信技术中,用户终端UE通过空口与基站进行通信,通过基站将用户数据转发到网络中的目的设备。D2D(Device-to-Device,设备对设备)通信技术是一种终端与终端之间直接通信的技术。与已有蜂窝通信技术不同的是,用户设备的数据不需要经过基站传输,而是直接通过终端和终端之间的空口进行传输,从而减少了网络转发的延时。典型的应用场景是公共安全场景,如火警组员之间的通信。D2D还需要支持单播通信(即1-to-1通信),即D2D UE直接发送D2D数据到某个其他UE。此外,为了扩展网络服务的覆盖范围,引入UE-to-Network Relay(用户到网络的中继)来为基站覆盖范围外的UE提供网络服务。例如,如图1所示,图1中的UE A101为Relay UE,可以为UE B202提供网络服务,将eNB的下行数据转发给UE B,再将UE B的上行数据转发给eNB,而UE B称为Remote UE。
现有技术中,Remote UE与relay UE通信实现通过relay UE中继与基站进行数据通信,此时remote UE是要保持与基站的连接,这样的方式remote UE比较耗电(需要接收基站的各种信令)。因此希望remote UE能够保证低功耗无需与基站进行太多联系的情况下,能尽快地从relay侧获得基站提供给该remote UE信息。与此同时Relay UE移动过程中可能随时切换到其他eNB,在Relay UE切换过程中,或者当relayUE切换过程中发生无线链路失败等情况时,relayUE与remote UE应该从哪里获得通信资源进行通信是需要解决的问题。
发明内容
D2D通信中,首先,在没有考虑Relay UE的移动性场景下,没有定义切
换过程中Relay UE与Remote UE使用什么资源通信。如果是同频切换情况,使用原基站分配的资源,那么切换到目标基站后,该资源有可能会被目标基站用于Uu通信,或者已经另行分配,那么使用该资源就会对目标小区中其他的用户终端造成干扰。如果是异频切换,那么对于只用一个RF的Relay UE,就不可能实现一方面要使用F2来接入目标基站,另一方面还要使用F1与Remote UE通信,导致第一设备和第二设备无法进行正常D2D通信。其次,对于eNB覆盖范围外的Remote UE,Remote UE使用预先配置好的资源和Relay UE通信,如果Remote UE在覆盖范围内也使用该预先配置好的资源与Relay UE通信,那么就会干扰到Uu口的通信,因为在覆盖范围内该预先配置的资源是由基站使用与用户设备通信的。
基于此,本发明实施例所要解决的技术问题是提供资源获取方法,其中,在第二设备(Relay UE)切换过程中,第一设备(Remote UE)可以从接收到的第一消息中,来获得第一通信资源配置,以及,在第一设备(Remote UE)处于eNB覆盖范围内时,第一设备(Remote UE)可以通过预配置资源的方式来获得第一通信资源配置。以此,第一设备和第二设备可以从第一通信资源配置中获得第一通信资源进行通信,以解决现有技术中无法为切换过程中的Relay UE及其提供中继服务的Remote UE进行资源获取的问题。
第一方面,本发明实施例提供了一种资源获取方法,该资源获取方法应用于第一设备上,该方法包括:
所述第一设备通过预配置资源的方式或从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置;所述第二设备用于为所述第一设备提供中继服务;
所述第一设备根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。
第一方面的一个实施例中,所述第一设备接收所述第二设备的第二消息;其中,所述第二消息用于指示所述第一设备利用所述第一通信资源与所述第二设备进行通信;或者,所述第二消息用于指示所述第一设备在满足预设条件时,使用所述第一通信资源与所述第二设备进行通信;其中,所述预设条件为以下任意一种或几种:所述第二设备从第三设备切换至第四设备的过程中;或者,
所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后;其中,所述第三设备为所述第二设备的服务节点,所述第四设备为所述第二设备切换的目标节点。
在该实施例中,第二设备可以在切换过程中向第一设备发送第二消息,来指示第一设备使用第一通信资源与第二设备进行通信;或者,第二设备在接入第四设备失败、所述第二设备处于无线链路失败RLF、所述第二设备执行无线链路重建立流程或者所述第二设备无线链路重建立失败后,也可以向第一设备发送第二消息,来指示第一设备使用第一通信资源与第二设备进行通信。这样就使得第二设备即便在移动过程中也能实现和第一设备之间的D2D通信。
在第一方面的另一个实施例中,还包括:
所述第一设备接收第二设备发送的第三消息,所述第三消息用于指示所述第一设备停止所述与所述第二设备之间的通信。在该实施例中,在第二设备切换失败的时候,或者,无法和基站等通信时,第二设备向第一设备发送第三消息,指示第一设备停止与自己之间的通信,或者,仅接收第二设备发送的消息等。
在第一方面的再一个实施例中,还包括:
如果在第一预设时间内,所述第一设备接收到所述第二设备的第四消息,所述第一设备恢复与所述第二设备的通信;如果在第一预设时间内所述第一设备未接收到所述第四消息,所述第一设备释放与所述第二设备之间的通信链接;所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信。
在该实施例中,如果第一设备已经停止和第二设备通信,则可以启动一个第一预设时间的定时器,定时器超时还未收到第二设备发送的第四消息,则为了节约通信链路资源,可以将通信链接进行释放,而如果定时器未超时就收到了指示第一设备恢复通信的第四消息,则第一设备再恢复和第二设备之间的通信。
在第一方面的再一个实施例中,在所述第一设备释放与所述第二设备之间的通信链接后,还包括:所述第一设备重新选择新的设备作为第二设备。第一
设备重新选择新的设备作为为自己提供中继服务的第二设备,从而保证第一设备上的D2D通信可以不受原第二设备的影响。
在第一方面的再一个实施例中,第一设备可以主动向第二设备发送第七消息,主动进入低功耗模式,或者,所述第一设备接收所述第二设备发送的第八消息时再被动进入低功耗模式。
其中,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:
所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
第二方面,本发明实施例还提供了另一种资源获取方法,该资源获取方法应用于第二设备上,该方法包括:
第二设备接收第三设备发送的第九消息,所述第九消息为所述第二设备提供第一通信资源配置;
所述第二设备向所述第一设备发送第一消息,所述第一消息包含第一通信
资源配置,以使得所述第一设备根据所述第一通信资源配置获得所述第一通信资源与第二设备进行通信;
其中,所述第二设备为所述第一设备与第三设备提供中继服务。
第二方面的第一个实施例中,第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。第三设备向第二设备发送的第九消息除了提供第一通信资源配置之外,还可以指示第二设备从第三设备切换到第四设备。
第二方面的第二个实施例中,还包括:所述第二设备发送第二消息给第一设备;所述第二消息用于指示第一设备使用所述第一通信资源进行通信;或者,用于指示所述第一设备出现预设情况时使用所述第一通信资源进行通信,所述预设情况包括以下任意一项或者多项:所述第二设备从第三设备切换至第四设备的过程中;或者,当所述第二设备检测到无线链路失败时,或者,当所述第二设备接收到所述第三设备发送的切换命令后,或者,当所述第二设备在执行无线链路重建立时,或者,当所述第二设备在发送RRC连接重建立消息时或之后。本实施例可以使第二设备在移动过程中也能和第一设备之间进行D2D通信。
第二方面的第三个实施例中,还包括:所述第二设备向第一设备发送第三消息,所述第三消息用于指示所述第一设备停止向所述第二设备传输数据。在本实施例中,在第二设备切换失败的时候,或者,无法和基站等通信时,第二设备向第一设备发送第三消息,指示第一设备停止与自己之间的通信,或者,仅接收第二设备发送的消息等。
第二方面的第四个实施例中,还包括:所述第二设备向所述第一设备发送第四消息,所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信。第二设备在自己的状态恢复正常后,还可以指示第一设备恢复与自己的D2D通信。
第二方面的第五个实施例中,所述第二设备接收所述第一设备发送的第七消息,所述第七消息用于向所述第二设备指示所述第一设备位于低功耗模式;或者,所述第二设备向所述第一设备发送第八消息,所述第八消息用于指示所
述第一设备进入所述低功耗模式。
第二方面的第六个实施例中,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:
所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
第三方面,本发明实施例还提供了一种资源获取方法,该资源获取方法应用于第三设备上,该方法包括:
第三设备向第二设备发送第九消息,所述第九消息用于为所述第二设备提供所述第二设备和第一设备进行通信的第一通信资源;
其中,所述第二设备为所述第三设备和第一设备提供中继服务。
第三方面的第一个实施例中,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
第四方面,本发明实施例还提供了一种第一设备,该第一设备可以包括:
第一处理单元,用于通过预配置资源的方式或从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置;所述第二设备用于为所述第一设备提供中继服务;
第二处理单元,用于根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。
第四方面的第一个实施例中,还包括:第一接收单元,用于接收所述第二设备的第二消息;其中,所述第二消息用于指示所述第一设备利用所述第一通信资源与所述第二设备进行通信;或者,所述第二消息用于指示所述第一设备在满足预设条件时,使用所述第一通信资源与所述第二设备进行通信;其中,所述预设条件为以下任意一种或几种:所述第二设备从第三设备切换至第四设备的过程中;或者,所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后;其中,所述第三设备为所述第二设备的服务节点,所述第四设备为所述第二设备切换的目标节点。
第四方面的第二个实施例中,还包括:
第二接收单元,用于接收第二设备发送的第三消息,所述第三消息用于指示所述第一设备停止所述与所述第二设备之间的通信。
第四方面的第三个实施例中,还包括:
第三处理单元,用于在第一预设时间内如果所述第一设备接收到所述第二设备的第四消息,恢复与所述第二设备的通信;
第四处理单元,用于在第一预设时间内如果所述第一设备未接收到第四消息,释放与所述第二设备之间的通信链接。
第四方面的第四个实施例中,在所述第一设备释放与所述第二设备之间的通信链接后,还包括:
第五处理单元,用于重新选择新的设备作为第二设备。
第四方面的第五个实施例中,还包括:
第一发送单元,用于向第二设备发送第七消息,所述第七消息用于向所述第二设备指示所述第一设备处于低功耗模式;或者,第五接收单元,用于接收
所述第二设备发送的第八消息,所述第八消息用于指示所述第一设备进入低功耗模式。
第四方面的第六个实施例中,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:
所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
第五方面,本发明实施例还提供了一种第二设备,该第二设备包括:
第六接收单元,用于接收第三设备发送的第九消息,所述第九消息为所述第二设备提供第一通信资源配置;
第二发送单元,用于向所述第一设备发送第一消息,所述第一消息包含第一通信资源配置,以使得所述第一设备根据所述第一通信资源配置获得所述第一通信资源与第二设备进行通信;
其中,所述第二设备为所述第一设备与第三设备提供中继服务。
第五方面的第一个实施例中,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
第五方面的第二个实施例中,还包括:
第三发送单元,用于发送第二消息给第一设备;所述第二消息用于指示第一设备使用所述第一通信资源进行通信;或者,当所述第二设备出现预设情况时所述第二设备发送所述第二消息给第一设备,用于指示所述第一设备使用所述第一通信资源进行通信,所述预设情况包括以下任意一项或者多项:
所述第二设备从第三设备切换至第四设备的过程中;或者,当所述第二设备检测到无线链路失败时,或者,当所述第二设备接收到所述第三设备发送的切换命令后,或者,当所述第二设备在执行无线链路重建立时,或者,当所述第二设备在发送RRC连接重建立消息时或之后。
第五方面的第三个实施例中,还包括:
第四发送单元,用于向第一设备发送第三消息,所述第三消息用于指示所述第一设备停止向所述第二设备传输数据。
第五方面的第四个实施例中,还包括:
第五发送单元,用于向所述第一设备发送第四消息,所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信。
第五方面的第五个实施例中,,还包括:
第七接收单元,用于接收所述第一设备发送的第七消息,所述第七消息用于指示所述第一设备处于低功耗模式;或者,第九发送单元,用于向所述第一设备发送第八消息,所述第八消息用于指示所述第一设备进入低功耗模式。
第五方面的第六个实施例中,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:
所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二
设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
第六方面,本发明实施例还提供了一种第三设备,该第三设备包括:
发送单元,用于向第二设备发送第九消息,所述第九消息用于为所述第二设备提供所述第二设备和第一设备进行通信的第一通信资源;
其中,所述第二设备为所述第三设备和第一设备提供中继服务。
第六方面的第一个实施例中,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
与现有技术相比:
本发明实施例的资源获取方法,可以使得Remote UE在和Relay UE进行通信时,Relay UE在切换状态下,或者出现异常情况下,从接收到的第一消息中来获得由切换的目标节点提供的第一通信资源配置,从而保证Remote UE和Relay UE之间的正常通信。并且,在Remote UE在覆盖范围内,通过预配置资源的方式来获得第一通信资源配置从而与Relay UE进行正常的D2D通信。
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述
中的附图仅仅是本发明中记载的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为现有技术中的应用场景图;
图2为本发明实施例中的应用场景图;
图3为本发明实施例中资源获取方法的一个实施例的流程图;
图4为本发明实施例中资源获取方法的一个信令交互图;
图5为本发明实施例中资源获取方法的另一个流程图;
图6为本发明实施例中资源获取方法的另一个信令交互图;
图7为本发明实施例中第一设备的结构示意图;
图8为本发明实施例中第二设备的结构示意图;
图9为本发明实施例中第三设备的结构示意图;
图10为本发明实施例中设备的硬件结构示意图。
为了使本技术领域的人员更好地理解本方法方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
下面结合附图,通过实施例来详细说明本发明资源获取的方法、第一设备、第二设备和第三设备。
参考图2所示,为本发明实施例的一个应用场景架构图。其中,本实施例中的第一设备可以为图2中的Remote UE201,第二设备可以为图2中的Relay UE202。第三设备可以为第二设备或第一设备的服务基站203(图2中以基站eNB为例示出),第四设备可以为第二设备切换的目标设备(图2中未示出)。在实际应用中,本发明实施例例如可以应用于第一设备在第三设备的覆盖范围外且第二设备在第三设备的覆盖范围内的场景,也可以应用于第一设备和第二设备都在第三设备的覆盖范围内的场景。
对于图1中所示的,第二设备在切换过程中的场景,例如切换到第四设备的过程中,可以使用第四设备提供的通信资源进行通信。下面参考图3详细介绍第二设备在切换过程中第一设备和第二设备获取资源的过程。图3示出了本发明实施例中资源获取方法一个实施例的方法流程图,本实施例的方法可以包括:
S301、第一设备和第二设备使用第三设备提供的通信资源进行通信。
在本实施例中,以第一设备为Remote UE、第二设备为Relay UE举例进行说明,第三设备可以是Relay UE的服务基站,在第二设备未进行切换或者正常情况下,第一设备和第二设备都可以使用第三设备提供的资源进行通信。
参考图4所示,为本实施例中第一设备(Remote UE)、第二设备(Relay UE)、第三设备(Source eNB)和第四设备(Target eNB)之间的信令交互图。本步骤即为图4中的步骤401。
S302、第三设备向第四设备发送第一设备和第二设备的配置信息,以便第二设备从第三设备切换到第四设备过程中,或者之后第二设备能够继续正常与第一设备通信。
在实际应用中,如果第二设备从第三设备切换至第四设备,那么在第二设备切换过程中,可以由第四设备提供第一设备和第二设备之间进行通信的通信资源。其中,第四设备Relay UE切换的目标基站。则在第二设备进行切换时,第三设备可以将第一设备和/或第二设备的配置信息,例如设备标识等,发送给目标基站,以使第二设备切换至目标基站,并由目标基站为第二设备提供第一通信资源配置。参考图4所示,第三设备在步骤402中将第一设备和第二设备的配置信息发送给目标设备。
其中,第一设备和/或第二设备的配置信息,具体地可以包括以下至少一项:
第一设备的标识:1)终端寻呼标识(UE paging Identity),该标识包括S-IMTS(SAE临时移动用户标识,SAE Temporary Mobile Subscriber Identity)和IMSI(国际移动用户识别码,International Mobile Subscriber Identity)。其中,
S-IMTS,S-TMSI(40 bits)=MMEC+M-TMSI。其中,“UE Paging Identity”表示了哪一个终端在寻呼。2)MME(移动管理设备功能,Mobility Management Entity)UE S1AP ID,“S1AP”为LTE数字蜂窝移动通信网S1应用协议。3)eNB UE X2AP ID,其中,“X2AP”演进的通用陆基无线接入网X2应用协议。4)UE的L2标识,例如数据源层-2ID(Source Layer-2 ID),用来标识在通信链路中发送数据的发送方,或者,目标层-2ID(Destination Layer-2 ID),用来标识在通信链路中接收数据的目标方。
其中,表1用来表示以上各个配置信息的需求和含义。
表1
第二设备的标识包括以下四项:1)终端寻呼标识(UE paging Identity),该标识包括S-IMTS和IMSI。2)MME UE S1AP ID。3)eNB UE X2AP ID。4)UE的L2标识,例如数据源层-2 ID(Source Layer-2 ID),用来标识在通信链路中发送数据的发送方(Identifies the sender of the data in sidelink communication),或者目标层-2ID(Destination Layer-2 ID),用来标识在通信链路中接收数据的目标方(Identifies the target of the data in sidelink communication).。
第一设备的类型,例如可以是中继设备(relay UE)或者远端设备(remote UE),以便于区分该设备是否是一个提供中继的设备,如果是则是中继设备,如果不是则是远端设备(remote UE)。而第二设备的类型,例如可以是中继设备(relay UE)或者远端设备(remote UE),以便于区分该设备是否是一个提供中继的设备,如果是则是中继设备,如果不是则是远端设备(remote UE)。
在步骤S302中,第四设备在接收到第三设备发送的第一设备和第二设备的信息之后,会将提供的第一通信资源配置在步骤403时发送给第三设备,从而为第一设备和第二设备提供第一通信资源进行通信。其中,该第一通信资源除了可以用于第二设备从第三设备切换至第四设备的过程中第一设备和第二设备之间的通信,还可以用于在满足预设情况下第二设备和第一设备之间进行通信,其中,预设情况可以是以下任意一种:所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后。
S303、第三设备向第二设备发送第九消息,所述第九消息用于为所述第二设备提供所述第二设备和第一设备进行通信的第一通信资源配置。
在S303中,第三设备在获得了第四设备提供的第一通信资源配置后,可以在步骤404向第二设备发送一个第九消息,该第九消息可以为切换命令,指示所述第二设备从第三设备切换到第四设备,该切换命令中同时还将步骤S302中第四设备提供的第一通信资源配置提供给第二设备。
可选的,第二设备还可以在接收到第九消息之后向第三设备返回响应消息,告知第三设备自己已经收到了切换命令并开始执行切换。
S304、所述第二设备向所述第一设备发送第一消息,所述第一消息包含第一通信资源配置,以使得所述第一设备根据所述第一通信资源配置获得第一通信资源与第二设备进行通信。
第二设备在执行切换时,还会在步骤405向第一设备发送一个第一消息,该第一消息也包含步骤S302中提供的第一通信资源配置,以使得第一设备根据第一通信资源配置获得第一通信资源与第二设备进行通信。
可选的,该第一消息可以同时指示在满足预设情况下,第一设备直接使用
第一通信资源配置中提供的第一通信资源与第二设备进行通信,其中,预设情况可以包括以下任意一项:所述第二设备从第三设备切换至第四设备的过程中;或者,所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后。
S305、第一设备从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置。
在本步骤中,在覆盖范围外,第一消息可以由第二设备发送给第一设备,第一设备可以通过第二设备发送的第一消息来获得第一通信资源配置,其中,第一消息中直接指示了第一设备用于和第二设备进行通信的第一通信资源配置。其中,第二设备是具有中继能力的设备,所述第二设备用于为所述第一设备提供中继服务(即图3中的Relay UE A)。所述第二设备在实现上可以为以下任意一种:用户设备、基站或第一设备的服务基站。当然,在覆盖范围内,第一消息可以由第一设备的服务设备发送给第一设备获得,第一设备直接接收其服务设备发送的第一消息也可以获得第一通信资源。
S306、所述第一设备根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。
第一设备根据第一通信资源配置,可以获得第一通信资源用来和第二设备进行通信。在本实施例中,第一设备在接收到第一消息之后,可以直接在步骤406使用其中指示的第一通信资源与第二设备进行通信。
如果第二设备发送的第一消息中没有指示第一设备直接使用第一通信资源进行通信,可选的,则步骤S306之后还可以包括:
S307、所述第一设备接收所述第二设备的第二消息。其中,所述第二消息用于指示所述第一设备利用所述第一通信资源与所述第二设备进行通信;或者,所述第二消息用于指示所述第一设备在满足预设条件时,使用所述第一通信资源与所述第二设备进行通信。
在本步骤中,如果第一消息中没有指示第一设备使用第一通信资源,则第二设备还可以向第一设备再发送一个第二消息,该第二消息中再指示第一设备
在第二设备切换过程中直接使用第一通信资源与第二设备进行通信。
可选的,在第二消息中还可以指示第一设备在满足预设条件时再使用第一通信资源与所述第二设备进行通信。其中,所述预设条件可以为以下任意一种或几种:所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后。
可选的,如果第二设备出现预设情况,在步骤S307之后还可以包括:
S308、所述第一设备接收第二设备发送的第三消息,所述第三消息用于指示所述第一设备停止所述与所述第二设备之间的通信。
在第二设备接入第四设备失败,或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败时或者之后,第二设备还可以向第一设备发送第三消息,该第三消息可以用于指示第一设备停止与所述第二设备之间的通信。该第三消息可以指示第一设备第二设备已经出现异常情况了,第一设备可以停止向第二设备发送数据或消息,或者第一设备可以仅接收来自第二设备的消息或数据。
可选的,在步骤S308之后,还可以包括:
S309、如果第一预设时间内所述第一设备接收到所述第二设备的第四消息,所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信,则所述第一设备恢复与所述第二设备的通信。
或者,在步骤S308之后,还可以包括:
S310、如果第一预设时间内所述第一设备未接收到所述第二设备的第四消息,所述第一设备释放与所述第二设备之间的通信链接。
在接收第三消息之后,第一设备可以启动一个定时器,该定时器的时间可以设置为第一预设时间(例如5ms),则在第一预设时间内第一设备判断是否接收到了第二设备发送的第四消息,该第四消息指示了第一设备可以恢复与第二设备之间的通信,这种情况下说明第二设备已经恢复了正常,则第一设备就恢复与第二设备之间的正常通信。而如果第一设备在第一预设时间内未接收到第二设备发送的第四消息,则说明第二设备在预设时间内并未恢复正常,在这
种情况下,为了节约通信资源,第一设备可以释放与第二设备之间的通信链接。
进一步的,在步骤S310之后,还可以包括:
S311、第一设备重新选择新的设备作为第二设备。
可选的,第一设备还可以在释放了与第二设备之间的通信链接之后,重新选择新的设备作为第二设备来为自己提供中继服务。
采用本实施例的技术方案,本发明实施例的资源获取方法,可以使得Remote UE在和Relay UE进行通信时,即便Relay UE在切换状态下,或者出现异常情况下,例如,第二设备接入第四设备失败,第二设备处于无线链路失败RLF,第二设备执行无线链路重建立流程,或者,第二设备无线链路重建立失败后,等,都能保证Remote UE和Relay UE之间的正常D2D通信。
对于图1所示的,例如第一设备和第二设备都在第三设备的覆盖范围内的场景(当然,本发明实施例的应用并不仅限于该场景),第一设备如何获得资源和第二设备进行通信,下面结合图5所示的流程进行详细介绍。图5为本发明实施例的资源获取方法的另一个方法实施例的流程图。本实施例可以包括:
S501、第三设备向第二设备发送同步信号消息或***消息。
在本实施例中,参考图6,为与图5的流程图对应的信令交互图。第三设备是第二设备的服务设备,第二设备可以接收到第三设备发送的同步信号或者***消息,例如SIB18或者SIB19配置,在同步信号或***消息中包括了第一通信资源配置,该第一通信资源配置中指示了用于第二设备和第一设备之间进行通信的第一通信资源。可以理解的是,在本实施例中,第一设备可以是覆盖范围内处于低功耗模式的低功耗Remote UE。
其中,所述低功耗模式可以指以下至少一项:
所述第一设备驻留(stay)在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述
第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
从上述内容可以看出,低功耗模式下的第一设备通常不与第三设备直接通信,而是与第二设备通信,通过第二设备中继的方式来与第三设备通信。其中,当第一设备驻留在第二设备下时,第一设备至少执行以下一个或者多个操作:第一设备仅接收第二设备发送的信息,或者第一设备仅接收第二设备发送的信令和/或数据,或者第一设备仅接收D2D通信设备发送的信令和/或数据,或者第一设备接收第二设备发送的信令和/或数据,或者第一设备接收D2D通信设备发送的信令和/或数据,或者第一设备接收第二设备发送的寻呼消息,或者第一设备接收第二设备发送的***消息,或者第一设备接收第二设备发送的同步信号,或者第一设备不接收小区发送的***消息,或者第一设备不接收小区发送的***消息,或者第一设备不接收小区发送的同步信息,或者,第一设备接收第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼
消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
其中,本实施例中提到的“第一设备仅接收第二设备发送的信息”中的“信息”为信令和/或数据。需要说明的是,本实施例中在低功耗模式中提到的信令,例如“接收D2D通信设备发送的信令”,“接收第二设备通信节点发送的信令”等,信令是寻呼消息,或者是***消息,或者是同步信号,或者是重配置消息,或者是本实施例中提到的第二消息,或者是第七消息等,本实施例中的“信令”不仅限于举例说明的消息。
需要说明的是,本实施例中提到的“接收站点发送的***消息”、“接收站点发送的寻呼消息”以及“接收站点发送的同步”中的站点是基站设备,例如LTE中的eNB,或者WCDMA的NodeB,或者GSM或CDMA中的BTS,或者微站等,本实施例不对站点的基站类型进行限制。
本实施例中提到的,本实施例中提到的“接收小区发送的***消息”等同于接收站点发送的***消息,“接收小区发送的寻呼消息”等同于接收站点发送的寻呼消息,“接收小区发送的同步信号”等同于接收站点发送的同步信号。
需要说明的是,本实施例中提到的“D2D通信设备”是指各种D2D通信设备,例如包括第二设备,或者与第二设备同步的其他D2D设备,或者与第二设备有相同同步源的D2D设备。S502、第一设备通过预配置资源的方式或从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置。
第二设备在从第三设备发送的同步信号和***消息中获得第一通信资源配置之后,再向第一设备发送第一消息,由第二设备再通过第一消息向第一设备传送第一通信资源配置。其中,第二设备发送的第一消息也是同步信号或***消息。具体的,第二设备可以在满足条件的情况下再发送同步信号或***消息。例如,第二设备可以在接收到覆盖范围内的第一设备广播的唤醒信号之后,再向第一设备发送第一消息来指示第一通信资源配置。或者,第二设备也可以周期性的向覆盖范围内的第一设备发送同步信号或***消息,第一设备在接收到同步信号或***消息之后,可以使用其中的第一通信资源与第二设备建立连接。其中,第二设备为第一设备和第三设备提供中继服务,第二设备可以为以
下任意一种:用户设备、基站或第一设备的服务基站。
当然,在本实施例中,第一设备还可以通过预配置资源来获得第一通信资源配置。预配置资源中指示了第一通信资源配置,第一设备通过第一通信资源配置获得第一通信资源以便与第二设备进行通信。
S503、所述第一设备根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。
第一设备根据第二设备发送的同步信号或***消息中获得第一通信资源配置,进而可以根据第一通信资源配置来获得可以与第二设备进行通信的通信资源。由于在同步信号或***消息中有第一通信资源配置,因此,第一设备可以使用同步信号或***消息中指示的通信资源进行通信。参考图6中的步骤603。
在第二设备发送第一消息之后,可选的,在步骤S502之后,还可以包括:
S504、所述第一设备向第二设备发送第七消息,所述第七消息用于向所述第二设备指示所述第一设备处于低功耗模式。
在本实施例中的第一设备在某些情况下,例如需要节省电量等,可以主动进入低功耗模式,并在低功耗模式下与第二设备保持正常的D2D通信。第一设备进入低功耗模式的方式有两种,第一种是第一设备主动进行低功耗模式,则第一设备在进入低功耗模式后向第二设备发送第七消息,所述第七消息用于向所述第二设备指示所述第一设备处于低功耗模式。
S505、所述第一设备接收所述第二设备发送的第八消息,所述第八消息用于指示所述第一设备进入低功耗模式。
当然,与步骤S503的主动方式不同的是,第一设备被动进入低功耗模式。在这种情况下,可以由第二设备向第一设备发送第八消息,该第八消息用于指示第一设备进入低功耗模式。
可选的,在步骤S505之后,还可以包括:
S506、第二设备向第三设备发送第一设备的配置信息。
在实际应用中,参考图6中的步骤604,第二设备在第一设备进入低功耗模式之后,会将第一设备的信息发送给第三设备,例如第一设备的标识。
S507:第二设备接收第三设备发送的第十消息,该第十消息用于指示第二通信资源配置。
而第三设备如果同意低功耗模式下的第一设备和第二设备之间进行通信,则可以在步骤605向第二设备发送第十消息,所述第十消息中指示了第二通信资源配置,该第二通信资源配置中提供了用于第一设备和第二设备之间进行通信的第二通信资源,以便第一设备和第二设备也可以使用第二通信资源进行通信。
S508:所述第二设备使用所述第二通信资源与所述第一设备进行通信。
则第二设备可以根据第十消息中的第二通信资源配置,立刻使用第二通信资源与第一设备通信。向第一设备发送第五消息。
S509:所述第二设备向第一设备发送第五消息,所述第五消息用于指示所述第二通信资源配置。
此外,第二设备还可以继续向第一设备发送第五消息,将第三设备提供的第二通信资源配置告知第一设备,以便第一设备也可以根据第二通信资源配置来使用第二通信资源与第二设备进行通信。可以理解的是,第一设备可以选择使用第一通信资源还是第二通信资源与第二设备进行通信。
可选的,在第三设备更新MIB或者***消息的时候,还可以包括:
S510、所述第一设备接收所述第二设备发送的第六消息,所述第六消息用于提供所述第一设备与第二设备进行通信的资源重配置信息。
在第三设备更新MIB或者***消息的时候,第二设备会重新向第一设备发送第六消息,所述第六消息用于提供所述第一设备与第二设备进行通信的资源重配置信息,则第一设备在接收到第六消息之后,发现资源配置发生了变化,则会根据第六消息进行资源重新配置。
采用本实施例的技术方案,在某些需要Remote UE切换至低功耗模式的情况下,也能使得低功耗的Remote UE能够与为其提供中继服务的Relay UE正常进行通信。
参考图7,为本发明实施例中第一设备的结构示意图。在图7所示的实施例
中,第一设备可以包括:
第一处理单元701,用于通过预配置资源的方式或从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置。
第二处理单元702,用于根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。
其中,所述第一消息由所述第一设备的服务设备或第二设备发送给第一设备;其中,所述第二设备是具有中继能力的设备,所述第二设备用于为所述第一设备提供中继服务。所述第二设备为以下任意一种:用户设备、基站或第一设备的服务基站。
其中,所述第一设备还可以包括:
第一接收单元703,用于接收所述第二设备的第二消息;其中,所述第二消息用于指示所述第一设备利用所述第一通信资源与所述第二设备进行通信;或者,所述第二消息用于指示所述第一设备在满足预设条件时,使用所述第一通信资源与所述第二设备进行通信;其中,所述预设条件为以下任意一种或几种:所述第二设备从第三设备切换至第四设备的过程中;或者,所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后;其中,所述第三设备为所述第二设备的服务设备,所述第四设备为所述第二设备切换的目标节点。
其中,所述第一设备还可以包括:
第二接收单元704,用于接收第二设备发送的第三消息,所述第三消息用于指示所述第一设备停止所述与所述第二设备之间的通信。
其中,所述第一设备还可以包括:
第三处理单元705,用于在第一预设时间内如果所述第一设备接收到所述第二设备的第四消息,恢复与所述第二设备的通信;
第四处理单元706,用于在第一预设时间内如果所述第一设备未接收到第四消息,释放与所述第二设备之间的通信链接。
其中,在所述第一设备释放与所述第二设备之间的通信链接后,所述第一
设备还可以包括:
第五处理单元707,用于重新选择新的设备作为第二设备。
所述第二设备发送的第一消息是同步消息SSLS或者***消息。
其中,所述第一设备还可以包括:
第三接收单元708,用于接收第二设备发送的第五消息,所述第五消息用于向所述第一设备指示与所述第二设备进行通信的第二通信资源配置。
其中,所述第一设备还可以包括:
第六处理单元709,用于根据所述第二通信资源配置获得第二通信资源与所述第二设备进行通信。
其中,所述第一设备还可以包括:
第四接收单元710,用于接收所述第二设备发送的第六消息,所述第六消息用于提供所述第一设备与第二设备进行通信的资源重配置信息。
其中,所述第一设备还可以包括:
第一发送单元711,用于向第二设备发送第七消息,所述第七消息用于向所述第二设备指示所述第一设备处于低功耗模式;或者
第五接收单元712,用于接收所述第二设备发送的第八消息,所述第八消息用于指示所述第一设备进入低功耗模式。
其中,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:
所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接
收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
参考图8,为本发明实施例中第二设备的结构示意图。在图8所示的实施例中,第二设备可以包括:
第六接收单元801,用于接收第三设备发送的第九消息,所述第九消息为所述第二设备提供第一通信资源配置;
第二发送单元802,用于向所述第一设备发送第一消息,所述第一消息包含第一通信资源配置,以使得所述第一设备根据所述第一通信资源配置获得所述第一通信资源与第二设备进行通信。
其中,所述第二设备为所述第一设备与第三设备提供中继服务。
所述第三设备可以为:所述第二设备的服务节点或控制节点或第一设备的服务节点。
其中,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
其中,第二设备还可以包括:
第三发送单元803,用于发送第二消息给第一设备;所述第二消息用于指示第一设备使用所述第一通信资源进行通信;或者,当所述第二设备出现预设情况时所述第二设备发送所述第二消息给第一设备,用于指示所述第一设备使用所述第一通信资源进行通信,所述预设情况包括以下任意一项或者多项:所述第二设备从第三设备切换至第四设备的过程中;或者,当所述第二设备检测到无线链路失败时,或者,当所述第二设备接收到所述第三设备发送的切换命令后,或者,当所述第二设备在执行无线链路重建立时,或者,当所述第二设
备在发送RRC连接重建立消息时或之后。
其中,第二设备还可以包括:
第四发送单元804,用于向第一设备发送第三消息,所述第三消息用于指示所述第一设备停止向所述第二设备传输数据。
其中,第二设备还可以包括:
第五发送单元805,用于向所述第一设备发送第四消息,所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信。
所述第一消息是同步消息SSLS或者***消息。
其中,第二设备还可以包括:
第六发送单元806,用于向第三设备发送所述第一设备的信息,并接收第三设备返回的第十消息,所述第十消息用于指示所述第一设备和第二设备之间进行通信的第二通信资源配置。
其中,第二设备还可以包括:
第七处理单元807,用于使用所述第二通信资源与所述第一设备进行通信。
其中,第二设备还可以包括:
第七发送单元808,用于向所述第一设备发送第五消息,所述第五消息用于向所述第一设备指示与所述第二设备进行通信的第二通信资源。
其中,第二设备还可以包括:
第八发送单元809,用于向所述第一设备发送第六消息,所述第六消息用于提供所述第一设备与第二设备进行通信的资源重配置信息。
其中,第二设备还可以包括:
第七接收单元810,用于接收所述第一设备发送的第七消息,所述第七消息用于指示所述第一设备处于低功耗模式;或者
第九发送单元811,用于向所述第一设备发送第八消息,所述第八消息用于指示所述第一设备进入低功耗模式。
其中,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:
所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数
据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
参考图9,为本发明实施例中第三设备的结构示意图。在图9所示的实施例中,第三设备可以包括:
第十发送单元901,用于向第二设备发送第九消息,所述第九消息用于为所述第二设备提供所述第二设备和第一设备进行通信的第一通信资源;
其中,所述第二设备为所述第三设备和第一设备提供中继服务。
其中,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。所述第九消息还用于指示所述第一设备和第二设备之间进行通信的第二通信资源配置,其中,第一节点处于低功耗模式。
参见图10,图5为本发明实施例中一种设备的硬件结构图。该设备100可以实现第一设备、第二设备或第三设备的功能。
其中,该设备100可以包括存储器1001、收发器1002,以及分别与所述存
储器1001、收发器1002连接的处理器1003。所述存储器1001用于存储一组程序指令,所述处理器1003用于调用所述存储器1001存储的程序指令以实现第一设备、第二设备或第三设备中的多个单元。
在本实施例的第一种可能的实现方式中,所述处理器1003中可以包括第一处理单元701和第二处理单元702。在本实现方式中,设备为第一设备,用于实现第一设备的功能。
在本实施例的第二种可能的实现方式中,所述处理器1003可以包括第六接收单元801和第二发送单元802,在本实现方式中,设备用于实现第二设备的功能。
在本实施例的第三种可能的实现方式中,在所述处理器503中可以包括第十发送第九单元901。在本实现方式中,设备100用于实现第三设备的功能。
可选的,所述处理器1003可以为中央处理器(英文:central processing unit,CPU)或网络处理器(英文:Network Processor,简称NP),所述存储器1001可以为随机存取存储器(英文:random access memory,RAM)类型的内部存储器,所述收发器1002可以包含普通物理接口,所述物理接口可以为以太(英文:Ethernet)接口或异步传输模式(英文:Asynchronous Transfer Mode,ATM)接口。上述处理器、收发器和存储器可以集成为一个或多个独立的电路或硬件,如:专用集成电路(英文:application-specific integrated circuit,ASIC)。
本发明实施例中提到的“第一设备”、“第一消息”、“第一发送单元”、“第一接收单元”、“第一处理单元”等名称中的“第一”只是用来做名字标识,并不代表顺序上的第一。该规则同样适用于“第二”、“第三”、“第四”、“第五”、“第六”、“第七”、“第八”、“第九”、“第十”、“第十一”、“第十二”和“第十三”等。
通过以上的实施方式的描述可知,本领域的技术人员可以清楚地了解到上述实施例方法中的全部或部分步骤可借助软件加通用硬件平台的方式来实现。基于这样的理解,本发明的技术方案可以以软件产品的形式体现出来,该计算机软件产品可以存储在存储介质中,如只读存储器(英文:read-only memory,ROM)/RAM、磁碟、光盘等,包括若干指令用以使得一台计算机设备(可以
是个人计算机,服务器,或者诸如路由器等网络通信设备)执行本发明各个实施例或者实施例的某些部分所述的方法。
本说明书中的各个实施例均采用递进的方式描述,各个实施例之间相同相似的部分互相参见即可,每个实施例重点说明的都是与其他实施例的不同之处。尤其,对于方法实施例和设备实施例而言,由于其基本相似于***实施例,所以描述得比较简单,相关之处参见***实施例的部分说明即可。以上所描述的设备及***实施例仅仅是示意性的,其中作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。
以上所述仅是本发明的优选实施方式,并非用于限定本发明的保护范围。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (32)
- 一种资源获取方法,其特征在于,所述资源获取方法应用于第一设备上,该方法包括:所述第一设备通过预配置资源的方式或从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置;所述第二设备用于为所述第一设备提供中继服务;所述第一设备根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。
- 根据权利要求1所述的方法,其特征在于,还包括:所述第一设备接收所述第二设备的第二消息;其中,所述第二消息用于指示所述第一设备利用所述第一通信资源与所述第二设备进行通信;或者,所述第二消息用于指示所述第一设备在满足预设条件时,使用所述第一通信资源与所述第二设备进行通信;其中,所述预设条件为以下任意一种或几种:所述第二设备从第三设备切换至第四设备的过程中;或者,所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后;其中,所述第三设备为所述第二设备的服务基站,所述第四设备为所述第二设备切换的目标基站。
- 根据权利要求1所述的方法,其特征在于,还包括:所述第一设备接收第二设备发送的第三消息,所述第三消息用于指示所述第一设备停止所述与所述第二设备之间的通信。
- 根据权利要求3所述的方法,其特征在于,还包括:如果在第一预设时间内所述第一设备接收到所述第二设备的第四消息,所述第一设备恢复与所述第二设备的通信;如果在第一预设时间内所述第一设备未接收到所述第四消息,所述第一设备释放与所述第二设备之间的通信链接;所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信。
- 根据权利要求4所述的方法,其特征在于,在所述第一设备释放与所述第二设备之间的通信链接后,还包括:所述第一设备重新选择新的设备作为第二设备。
- 根据权利要求1-5任意一项所述的方法,其特征在于,还包括:所述第一设备向第二设备发送第七消息,所述第七消息用于向所述第二设备指示所述第一设备处于低功耗模式;或者所述第一设备接收所述第二设备发送的第八消息,所述第八消息用于指示所述第一设备进入低功耗模式。
- 根据权利要求6所述的方法,其特征在于,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量; 或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
- 一种资源获取的方法,其特征在于,应用于第二设备上,所述方法包括:第二设备接收第三设备发送的第九消息,所述第九消息为所述第二设备提供第一通信资源配置;所述第二设备向所述第一设备发送第一消息,所述第一消息包含所述第一通信资源配置,以使得所述第一设备根据所述第一通信资源配置获得所述第一通信资源与第二设备进行通信;其中,所述第二设备为所述第一设备与第三设备提供中继服务。
- 根据权利要求8所述的方法,其特征在于,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
- 根据权利要求9所述的方法,其特征在于,还包括:所述第二设备发送第二消息给第一设备;所述第二消息用于指示第一设备使用所述第一通信资源进行通信;或者,用于指示所述第一设备出现预设情况时使用所述第一通信资源进行通信,所述预设情况包括以下任意一项或者多项:所述第二设备从第三设备切换至第四设备的过程中;或者,当所述第二设备检测到无线链路失败时,或者当所述第二设备接收到所述第三设备发送的切换命令后,或者当所述第二设备在执行无线链路重建立时,或者当所述第二设备在发送RRC连接重建立消息时或之后。
- 根据权利要求10所述的方法,其特征在于,还包括:所述第二设备向第一设备发送第三消息,所述第三消息用于指示所述第一 设备停止向所述第二设备传输数据。
- 根据权利要求11所述的方法,其特征在于,还包括:所述第二设备向所述第一设备发送第四消息,所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信。
- 根据权利要求8~12任意一项所述的方法,其特征在于,还包括:所述第二设备接收所述第一设备发送的第七消息,所述第七消息用于向所述第二设备指示所述第一设备位于低功耗模式;或者所述第二设备向所述第一设备发送第八消息,所述第八消息用于指示所述第一设备进入所述低功耗模式。
- 根据权利要求8所述的方法,其特征在于,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操 作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
- 一种资源获取方法,其特征在于,包括:第三设备向第二设备发送第九消息,所述第九消息用于为所述第二设备提供所述第二设备和第一设备进行通信的第一通信资源;其中,所述第二设备为所述第三设备和第一设备提供中继服务。
- 根据权利要求15所述的方法,其特征在于,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
- 一种第一设备,其特征在于,包括:第一处理单元单元,用于通过预配置资源的方式或从接收到的第一消息中,获得所述第一设备与第二设备进行通信的第一通信资源配置;所述第二设备用于为所述第一设备提供中继服务;第二处理单元单元,用于根据所述第一通信资源配置,获得第一通信资源以便与所述第二设备进行通信。
- 根据权利要求17所述的第一设备,其特征在于,还包括:第一接收单元,用于接收所述第二设备的第二消息;其中,所述第二消息用于指示所述第一设备利用所述第一通信资源与所述第二设备进行通信;或者,所述第二消息用于指示所述第一设备在满足预设条件时,使用所述第一通信资源与所述第二设备进行通信;其中,所述预设条件为以下任意一种或几种:所述第二设备从第三设备切换至第四设备的过程中;或者,所述第二设备接入第四设备失败;或者,所述第二设备处于无线链路失败RLF;或者,所述第二设备执行无线链路重建立流程;或者,所述第二设备无线链路重建立失败后;其中,所述第三设备为所述第二设备的服务节点,所述第四设备为所述第二设备切换的目标节点。
- 根据权利要求17所述的第一设备,其特征在于,还包括:第二接收单元,用于接收第二设备发送的第三消息,所述第三消息用于指示所述第一设备停止所述与所述第二设备之间的通信。
- 根据权利要求19所述的第一设备,其特征在于,还包括:第三处理单元,用于在第一预设时间内如果所述第一设备接收到所述第二设备的第四消息,恢复与所述第二设备的通信;第四处理单元,用于在第一预设时间内如果所述第一设备未接收到第四消息,释放与所述第二设备之间的通信链接。
- 根据权利要求20所述的第一设备,其特征在于,在所述第一设备释放与所述第二设备之间的通信链接后,还包括:第五处理单元,用于重新选择新的设备作为第二设备。
- 根据权利要求17~21任意一项所述的第一设备,其特征在于,还包括:第一发送单元,用于向第二设备发送第七消息,所述第七消息用于向所述第二设备指示所述第一设备处于低功耗模式;或者第五接收单元,用于接收所述第二设备发送的第八消息,所述第八消息用于指示所述第一设备进入低功耗模式。
- 根据权利要求22所述的第一设备,其特征在于,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
- 一种第二设备,其特征在于,包括:第六接收单元,用于接收第三设备发送的第九消息,所述第九消息为所述第二设备提供第一通信资源配置;第二发送单元,用于向所述第一设备发送第一消息,所述第一消息包含第一通信资源配置,以使得所述第一设备根据所述第一通信资源配置获得所述第一通信资源与第二设备进行通信;其中,所述第二设备为所述第一设备与第三设备提供中继服务。
- 根据权利要求24所述的第二设备,其特征在于,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
- 根据权利要求25所述的第二设备,其特征在于,还包括:第三发送单元,用于发送第二消息给第一设备;所述第二消息用于指示第一设备使用所述第一通信资源进行通信;或者,当所述第二设备出现预设情况时所述第二设备发送所述第二消息给第一设备,用于指示所述第一设备使用所述第一通信资源进行通信,所述预设情况包括以下任意一项或者多项:所述第二设备从第三设备切换至第四设备的过程中;或者,当所述第二设备检测到无线链路失败时,或者当所述第二设备接收到所述第三设备发送的切换命令后,或者当所述第二设备在执行无线链路重建立时,或者当所述第二设备在发送RRC连接重建立消息时或之后。
- 根据权利要求26所述的第二设备,其特征在于,还包括:第四发送单元,用于向第一设备发送第三消息,所述第三消息用于指示所述第一设备停止向所述第二设备传输数据。
- 根据权利要求27所述的第二设备,其特征在于,还包括:第五发送单元,用于向所述第一设备发送第四消息,所述第四消息用于指示所述第一设备恢复和所述第二设备之间的通信。
- 根据权利要求24~28任意一项所述的第二设备,其特征在于,还包括:第七接收单元,用于接收所述第一设备发送的第七消息,所述第七消息用于向所述第二设备指示所述第一设备位于低功耗模式;或者第九发送单元,用于向所述第一设备发送第八消息,所述第八消息用于指示所述第一设备进入所述低功耗模式。
- 根据权利要求29所述的第二设备,其特征在于,所述第一设备处于低功耗模式,所述低功耗模式是指以下至少一项:所述第一设备驻留在第二设备下;或者,所述第一设备仅接收所述第二设备发送的信息;或者,所述第一设备仅接收所述第二设备发送的信令和/或数据;或者,所述第一设备仅接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的信令和/或数据;或者,所述第一设备接收D2D通信设备发送的信令和/或数据;或者,所述第一设备接收所述第二设备发送的寻呼消息;或者,所述第一设备接收所述第二设备发送的***消息;或者,所述第一设备接收所述第二设备发送的同步信号;或者,所述第一设备不接收小区发送的***消息;或者,所述第一设备不接收小区发送的寻呼消息;或者,所述第一设备不接收小区发送的同步信息;或者,所述第一设备接收所述第二设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量;或者,所述第一设备接收D2D通信设备发送的信息,但不执行以下至少一项操作:驻留在一个小区内,接收小区发送的***消息,接收小区发送的寻呼消息,接收小区发送的同步信号,接收站点发送的***消息,接收站点发送的寻呼消息,接收站点发送的同步信号邻居小区测量,同频小区测量,异频小区测量。
- 一种第三设备,其特征在于,包括:第十发送单元,用于向第二设备发送第九消息,所述第九消息用于为所述第二设备提供所述第二设备和第一设备进行通信的第一通信资源;其中,所述第二设备为所述第三设备和第一设备提供中继服务。
- 根据权利要求31所述的第三设备,其特征在于,所述第九消息为切换命令,所述第九消息还用于指示所述第二设备从所述第三设备切换到第四设备。
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