WO2022007953A1 - 链路失败的处理方法、装置、中继终端及通信设备 - Google Patents
链路失败的处理方法、装置、中继终端及通信设备 Download PDFInfo
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- WO2022007953A1 WO2022007953A1 PCT/CN2021/105512 CN2021105512W WO2022007953A1 WO 2022007953 A1 WO2022007953 A1 WO 2022007953A1 CN 2021105512 W CN2021105512 W CN 2021105512W WO 2022007953 A1 WO2022007953 A1 WO 2022007953A1
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- link
- relay terminal
- terminal
- direct communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
Definitions
- the present disclosure relates to the technical field of wireless communication, and in particular, to a method, an apparatus, a relay terminal, and a communication device for processing a link failure.
- the traditional wireless communication adopts the cellular network communication mode, that is, the terminal and the network side equipment transmit uplink and downlink data or control information through the Uu interface.
- Direct communication refers to a method in which adjacent terminals can transmit data through a direct communication link (also called a side link Sidelink or PC5) within a short range.
- a direct communication link also called a side link Sidelink or PC5
- the wireless interface corresponding to the Sidelink link is called the direct communication interface (also called the Sidelink interface or the PC5 interface).
- the terminal determines that the link between it and the network has a radio link failure (Radio Link Failure, RLF) or beam connection failure (Beam Failure) , the terminal will try to restore the link or perform cell reselection. Similar to the Uu interface, the link between the Integrated Access and Backhaul (IAB) node and its parent node is terminated, and the IAB node determines that the link between its parent node has RLF, then the IAB node It will send RLF notification information to its child nodes, informing its child nodes that RLF has occurred between it and the parent node, and can no longer continue to provide access and backhaul services to its child nodes. After receiving the RLF notification information sent by the parent node, the child node will perform cell reselection, thereby selecting other IAB nodes for access and subsequent service transmission.
- RLF Radio Link Failure
- Beam Failure Beam Failure
- the relay may be a terminal with relay function.
- the interface between the relay and the network uses the Uu interface
- the interface between the relay terminal and the relayed terminal uses the PC5 interface (also called direct communication) interface, which can be described as Sidelink).
- the link between the relay and the network can be called a backhaul link for the remote terminal.
- the interfaces used between the relay terminal and the remote terminal are all direct communication interfaces.
- Links at both ends of the relay for example, for terminal-to-network relays, the links at both ends of the relay include: the Uu link between the relay and the network, and the Sidelink link between the relay and the remote terminal; for the terminal To the terminal relay, the links at both ends of the relay include: the sidelink link between the relay and the remote terminal 1, and the sidelink link between the relay and the remote terminal 2.
- the purpose of the embodiments of the present disclosure is to provide a link failure processing method, apparatus, relay terminal, and communication device, so as to solve the problem that the related wireless link failure mechanism cannot use the relay scenario.
- the present disclosure provides a method for processing a link failure, which is applied to a relay terminal, including:
- the target information is sent through the second link between the relay terminal and the second device;
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link.
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, and unable to access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to restore the direct communication link with the first device, unable to restore the direct communication link with the first device device connection.
- the sending the target information through the second link includes:
- the target information carries indication information of the current state of the relay terminal, or the target information implicitly indicates the current state of the relay terminal.
- the method also includes at least one of the following:
- the direct communication link restoration indication information is sent to the second device.
- the target information also carries the identification information of the first device, and the direct communication link in which the radio link failure or the beam failure occurs is indirectly indicated by the identification information of the first device.
- An embodiment of the present disclosure further provides a method for processing a link failure, which is applied to a second device, including:
- the second link is a link between the relay terminal and the second device
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link between the relay terminal and the first device.
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the method further includes:
- the method further includes at least one of the following:
- the method also includes:
- the current state of the relay terminal implicitly indicated by the target information is determined.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, and unable to access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to restore the direct communication link with the first device, unable to restore the direct communication link with the first device device connection.
- the method also includes at least one of the following:
- the current state of the relay terminal is to attempt to restore the Uu link or perform cell reselection, reduce or stop the data sent to the network device via the relay terminal;
- the relay terminal If the current state of the relay terminal is that it cannot access the network, the relay terminal is reselected.
- the method also includes at least one of the following:
- Cell access is performed according to the indication information of successful cell access sent by the relay terminal.
- the method also includes:
- the method further includes at least one of the following:
- the method also includes:
- the data sent to the first device via the relay terminal is restored.
- the embodiment of the present disclosure also provides a link failure processing device, which is applied to a relay terminal, including:
- a sending module configured to send the data through the second link between the relay terminal and the second device in the event of a wireless link failure or beam failure in the first link between the relay terminal and the first device target information
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link.
- Embodiments of the present disclosure further provide a relay terminal, including: a transceiver, a memory, a processor, and computer program instructions stored in the memory and executable on the processor, the transceiver being in the processor's To receive and transmit data under control, the processor is used to read program instructions in the memory to perform the following operations:
- the target information is sent through the second link between the relay terminal and the second device;
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link.
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, and unable to access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to restore the direct communication link with the first device, unable to restore the direct communication link with the first device device connection.
- processor is also used to read program instructions in the memory, and perform the following operations:
- the target information carries indication information of the current state of the relay terminal, or the target information implicitly indicates the current state of the relay terminal.
- the processor is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the direct communication link restoration indication information is sent to the second device.
- the target information also carries the identification information of the first device, and the direct communication link in which the radio link failure or the beam failure occurs is indirectly indicated by the identification information of the first device.
- An embodiment of the present disclosure further provides a link failure processing apparatus, applied to a second device, including:
- a receiving module configured to receive target information sent by the relay terminal through a second link;
- the second link is a link between the relay terminal and the second device;
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link between the relay terminal and the first device.
- Embodiments of the present disclosure further provide a communication device, the communication device being a second device, comprising: a transceiver, a memory, a processor, and computer program instructions stored in the memory and executable on the processor,
- the transceiver receives and transmits data under the control of a processor, which is used to read program instructions in the memory and perform the following operations:
- the second link is a link between the relay terminal and the second device
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link between the relay terminal and the first device.
- described first link is the Uu link between relay terminal and network equipment
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- processor is also used to read program instructions in the memory, and perform the following operations:
- the first link is a Uu link
- the processor is further configured to read program instructions in the memory, and perform at least one of the following operations:
- processor is also used to read program instructions in the memory, and perform the following operations:
- the current state of the relay terminal implicitly indicated by the target information is determined.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, and unable to access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to restore the direct communication link with the first device, unable to restore the direct communication link with the first device device connection.
- the processor is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the current state of the relay terminal is to attempt to restore the Uu link or perform cell reselection, reduce or stop the data sent to the network device via the relay terminal;
- the relay terminal If the current state of the relay terminal is that it cannot access the network, the relay terminal is reselected.
- the processor is further configured to read program instructions in the memory, and perform at least one of the following operations:
- Cell access is performed according to the indication information of successful cell access sent by the relay terminal.
- the processor is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the processor is further configured to read program instructions in the memory, and perform the following operations:
- the processor is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the data sent to the first device via the relay terminal is restored.
- Embodiments of the present disclosure further provide a computer-readable storage medium, where computer program instructions are stored on the computer-readable storage medium, and when the computer program instructions are executed by a processor, the steps of the above-mentioned link failure processing method are implemented .
- the relay terminal determines that a radio link failure or beam failure occurs on the first link, the relay terminal notifies that the A relay terminal or a network device is used to enable the relayed device or the network device to know that an RLF or beam failure has occurred on another link of the relay, so as to perform corresponding operations.
- FIG. 1 is a schematic diagram of one of the steps of a method for processing a link failure provided by an embodiment of the present disclosure
- FIG. 2 shows a second schematic diagram of steps of a method for processing a link failure provided by an embodiment of the present disclosure
- FIG. 3 is a schematic structural diagram of a link failure processing apparatus provided by an embodiment of the present disclosure.
- FIG. 4 is a schematic structural diagram of a relay terminal provided by an embodiment of the present disclosure.
- FIG. 5 shows the second schematic structural diagram of a link failure processing apparatus provided by an embodiment of the present disclosure
- FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
- an embodiment of the present disclosure provides a method for processing a link failure, which is applied to a relay terminal, including:
- Step 11 In the case of a radio link failure or beam failure in the first link between the relay terminal and the first device, send the target information through the second link between the relay terminal and the second device ; wherein, the target information is used to indicate that a radio link failure or a beam failure occurs in the first link.
- relay scenarios include: terminal-to-network relay (UE-to-Network Relay) and terminal-to-terminal relay (UE-to-UE relay).
- UE-to-Network Relay terminal-to-Network Relay
- UE-to-UE relay terminal-to-terminal relay
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the first link is the Uu link between the relay terminal and the network device
- the second link is the direct communication link between the relay terminal and the relayed terminal
- the first link is a direct communication link between the relay terminal and the relayed terminal
- the second link is a Uu link between the relay terminal and the network device.
- the first link is a direct communication link between the relay terminal and the first relayed terminal (may be called remote UE1)
- the second link is a medium link.
- a direct communication link between the relay terminal and the second relayed terminal may be referred to as remote UE2; or, the first link is between the relay terminal and the second relayed terminal (may be referred to as remote UE2)
- the second link is the direct communication link between the relay terminal and the first relayed terminal (may be referred to as remote UE1).
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, unable to access the network .
- the relay terminal in at least one of the following states: trying to restore the connection with the first device (the relayed terminal) The connection with the first device (the relayed terminal) cannot be restored.
- the target information when the first link is a direct communication link, the target information also carries the identification information of the first device (relayed terminal), and the identification information of the first device indirectly indicates the occurrence of a wireless link failure or the direct communication link where the beam fails.
- the target information also carries the ID information of the remote UE, which is used by the second device to determine the link between the relay terminal and which remote UE has RLF or beam failure.
- step 11 includes:
- the target information carries indication information of the current state of the relay terminal, or the target information implicitly indicates the current state of the relay terminal.
- the relay terminal may not send any indication information to the second device.
- the second device is a network device
- the relay terminal normally receives the data sent by the relay terminal to the network, and the relay terminal buffers the data so that after the Uu link is restored, it can continue to be the data sent by the relay terminal.
- the relay terminal transmits data to the network, or forwards the data of the network for the relayed terminal.
- the relay terminal may not send any indication information to the second device.
- the relaying terminal normally receives the data sent by the network device or another relayed terminal to the relayed terminal, and the relaying terminal buffers the data so that After the direct path link is restored, the data sent by the network or another relayed terminal to the relayed terminal may continue to be forwarded, or the data sent by the relayed terminal to the network or another relayed terminal may be forwarded.
- the method further includes at least one of the following:
- the relay terminal After the relay terminal recovers the Uu link, it sends the Uu link recovery indication information to the second device, so that the second device can recover the normal data transmission rate sent to the first device;
- the relay terminal After the relay terminal successfully accesses the reselected cell, it sends the indication information of successful access to the cell to the second device, so that the second device can perform cell access, so that the network device can re-establish the context of the second device and/or RLC channel mapping between the first link and the second link;
- the relay terminal restores the direct communication link with the relayed terminal, it sends the direct communication link restoration indication information to the second device, so that the second device can restore the normal communication link sent to the first device. data transfer rate.
- the relay terminal when the relay terminal determines that a radio link failure or beam failure occurs in the first link, the relay terminal notifies the relayed terminal or the network device through the second link, so that the relayed device Or the network device can learn that an RLF or beam failure occurs on another link of the relay, and perform corresponding operations.
- an embodiment of the present disclosure further provides a method for processing a link failure, which is applied to a second device, where the second device may be a network device or a relayed terminal; the method includes:
- Step 21 Receive target information sent by the relay terminal through a second link; the second link is a link between the relay terminal and the second device; wherein the target information is used to indicate the relay terminal and the second device.
- a radio link failure or beam failure occurs in the first link between the first devices.
- relay scenarios include: terminal-to-network relay (UE-to-Network Relay) and terminal-to-terminal relay (UE-to-UE relay).
- UE-to-Network Relay terminal-to-Network Relay
- UE-to-UE relay terminal-to-terminal relay
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the first link is the Uu link between the relay terminal and the network device
- the second link is the direct communication link between the relay terminal and the relayed terminal
- the first link is a direct communication link between the relay terminal and the relayed terminal
- the second link is a Uu link between the relay terminal and the network device.
- the first link is a direct communication link between the relay terminal and the first relayed terminal (may be called remote UE1)
- the second link is a medium link.
- a direct communication link between the relay terminal and the second relayed terminal may be referred to as remote UE2; or, the first link is between the relay terminal and the second relayed terminal (may be referred to as remote UE2)
- the second link is the direct communication link between the relay terminal and the first relayed terminal (may be referred to as remote UE1).
- the method when the first link is a Uu link, the method further includes:
- the method when the first link is a direct communication link, the method further includes at least one of the following:
- the second device releases the first direct communication link (ie the first link) and the second direct communication link (ie the second link) RLC channel mapping.
- the second device releases the RLC channels of the direct communication link (ie, the first link) and the Uu link (ie, the second link). map.
- the method further includes:
- the current state of the relay terminal implicitly indicated by the target information is determined.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, and unable to access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to restore the direct communication link with the first device (relayed terminal) .
- the connection with the first device (the relayed terminal) cannot be restored.
- the target information when the first link is a direct communication link, the target information also carries the identification information of the first device, and the identification information of the first device indirectly indicates the failure of the wireless link or the beam failure.
- the target information also carries the ID information of the remote UE, which is used by the second device to determine the link between the relay terminal and which remote UE has RLF or beam failure.
- the method further includes at least one of the following:
- the current state of the relay terminal is to attempt to restore the Uu link or perform cell reselection, reduce or stop the data sent to the network device via the relay terminal (to reduce the probability of data congestion in the relay terminal);
- the second device needs to reselect the relay terminal;
- the relay terminal is used to continue to send data to the relayed terminal or the network device through the new relay terminal, or to receive data from the network or the relayed terminal.
- the method also includes at least one of the following:
- the relay terminal restore the data sent to the network device via the relay terminal; for example, restore the normal data transmission rate sent to the network device;
- the method further includes:
- the relay terminal If the current state of the relay terminal is to try to restore the direct communication link with the first device, reduce or stop the data sent to the first device (relayed terminal) via the relay terminal to reduce the intermediate The probability of data congestion occurring at the subsequent terminal.
- the method further includes at least one of the following:
- the second device may further notify the core network that the network device has lost the connection of the relayed terminal corresponding to the first link.
- the second device when the first link is a direct communication link and the second device is a relayed terminal, if the second device is in the network control mode, the second device also needs to notify the network device so that the network device can release the first link.
- the method also includes:
- the data sent to the first device via the relay terminal is restored.
- the network device or the relayed terminal restores the data transmission rate sent to the relayed terminal via the relaying terminal.
- the relay terminal when the relay terminal determines that a radio link failure or beam failure occurs in the first link, the relay terminal notifies the relayed terminal or the network device through the second link, so that the relayed device Or the network device can learn that an RLF or beam failure occurs on another link of the relay, and perform corresponding operations.
- Example 1 for terminal-to-network relay, when RLF or beam failure occurs on the Uu link
- the relay UE determines which state it is in: trying to restore the Uu link, performing cell reselection, unable to access the network; or the relay UE directly sending indication information.
- the relay UE When the relay UE is trying to restore the Uu link, it may not send any indication information to the remote UE (relayed terminal), or send first indication information to the remote UE, where the first indication information includes the state information of the relay terminal; or,
- the second indication information is sent to the remote UE, and the second indication information includes the state information of the relay terminal; or,
- the relay UE When the relay UE cannot access the network, send third indication information to the remote UE, where the third indication information includes the status information of the relay terminal; or,
- the relay UE sends the indication information directly.
- the remote UE When the remote UE receives the first indication information, the remote UE reduces or stops the data sent to the network via the relay UE; optionally, after the relay UE restores the connection, it sends the connection restoration indication information to the remote UE, and the remote UE can return to normal the transmission rate sent to the network device; or,
- the relay UE When the remote UE receives the second indication information, the relay UE performs cell reselection so that the remote UE can reduce or stop the data sent to the network via the relay UE; when the relay UE successfully accesses the cell, the relay UE sends a successful reception to the remote UE. Entering cell indication information, the remote UE needs to perform cell access; or,
- the remote UE When the remote UE receives the third indication information, it needs to perform relay reselection and re-select a new relay, so as to continue to send data to the network through the new relay, or receive data from the network; or,
- the remote UE When the remote UE receives the indication information, it needs to perform relay reselection and re-select a new relay, so as to continue to send data to the network through the new relay, or receive data from the network.
- the relay UE determines which state it is in: trying to restore the SL link with the remote UE, unable to restore the connection with the remote UE; or the relay UE directly sending indication information;
- the relay UE When the relay UE is trying to restore the SL link with the remote UE, it may not send any indication information to the network device, or send fourth indication information to the network device.
- the fourth indication information includes the indication information type and the ID of the remote UE. information; or,
- the relay UE When the relay UE cannot restore the connection with the remote UE, it sends fifth indication information to the network device, where the fifth indication information includes the indication information type and the ID information of the remote UE; or,
- the relay UE sends the indication information directly.
- the network device When the network device receives the fourth indication information, the network device reduces or stops the data sent to the remote UE via the relay UE; optionally, after the relay UE restores the connection, it sends the connection restoration indication information to the network device, and the network device can restore the connection. the transmission rate normally sent to the remote UE; or,
- the network device When the network device receives the fifth indication information, it needs to suspend the data transmitted to the remote UE, release the context of the remote UE and/or the RLC channel mapping of the SL-Uu link, and notify the core network that the network device has lost the connection of the remote UE ;or,
- the network device When the network device receives the indication information, it needs to suspend the data transmitted to the remote UE, release the context of the remote UE and/or the RLC channel mapping of the SL-Uu link, and notify the core network that the network device has lost the connection of the remote UE.
- the relay UE determines which of the following states is in the following state: trying to restore the SL link with remote UE1, unable to restore the connection with remote UE1, trying to restore the SL link with remote UE2, unable to restore the connection with remote UE2; or relay UE directly sending Instructions.
- the relay UE When the relay UE is trying to restore the SL link with the remote UE1, it may not send any indication information to the remote UE2, or send the sixth indication information to the remote UE2, where the sixth indication information includes the indication information type and the ID of the remote UE1 information; or,
- the relay UE When the relay UE is trying to restore the SL link with the remote UE2, it may not send any indication information to the remote UE1, or send the seventh indication information to the remote UE1.
- the seventh indication information includes the indication information type and the ID of the remote UE2 information; or,
- the relay UE When the relay UE cannot restore the connection with the remote UE1, it sends eighth indication information to the remote UE2, where the eighth indication information includes the type of indication information and the ID information of the remote UE1; or,
- the relay UE When the relay UE cannot resume the connection with the remote UE2, it sends ninth indication information to the remote UE1, where the ninth indication information includes the type of indication information and the ID information of the remote UE2; or,
- the relay UE sends the indication information directly.
- the remote UE2 When the remote UE2 receives the sixth indication information, the remote UE2 reduces or stops the data sent to the remote UE1 via the relay UE; The remote UE2 can resume the normal transmission rate sent to the remote UE1; or,
- the remote UE1 When the remote UE1 receives the seventh indication information, the remote UE1 reduces or stops the data sent to the remote UE2; optionally, after the relay UE restores the connection with the remote UE2, it sends the connection restoration indication information to the remote UE1, and the remote UE1 can restore the normal transmission rate to remote UE2; or,
- the remote UE2 When the remote UE2 receives the eighth indication information, it needs to suspend the data transmitted to the remote UE1, release the context of the remote UE1 and/or the RLC channel mapping of the SL-SL link, or perform relay reselection. If the remote UE2 is in the network control mode, the remote UE2 also needs to notify the network device so that the network device can release the context of the remote UE1, the link between the remote UE2 and the remote UE1, and/or the RLC channel mapping of the SL-SL link , or perform relay reselection; or,
- the remote UE1 When the remote UE1 receives the ninth indication information, it needs to suspend the data transmitted to the remote UE2, release the context of the remote UE2 and/or the RLC channel mapping of the SL-SL link, or perform relay reselection. If the remote UE1 is in the network control mode, the remote UE1 also needs to notify the network device so that the network device can release the context of the remote UE2, the link between the remote UE1 and the remote UE2, and/or the RLC channel mapping of the SL-SL link , or perform relay reselection; or,
- the remote UE2 When the remote UE2 receives the indication information, it needs to suspend the data transmitted to the remote UE1, release the context of the remote UE1 and/or the RLC channel mapping of the SL-SL link, or perform relay reselection. If the remote UE2 is in the network control mode, the remote UE2 also needs to notify the network device so that the network device can release the context of the remote UE1, the link between the remote UE2 and the remote UE1, and/or the RLC channel mapping of the SL-SL link , or perform relay reselection; or,
- the remote UE1 When the remote UE1 receives the indication information, it needs to suspend the data transmitted to the remote UE2, release the context of the remote UE2 and/or the RLC channel mapping of the SL-Uu link, or perform relay reselection. If the remote UE1 is in the network control mode, the remote UE1 also needs to notify the network device so that the network device can release the context of the remote UE2, the link between the remote UE1 and the remote UE2, and/or the RLC channel mapping of the SL-SL link , or perform relay reselection.
- an embodiment of the present disclosure further provides a link failure processing apparatus, which is applied to a relay terminal, including:
- a sending module 31, configured to pass the second link between the relay terminal and the second device in the event of a radio link failure or beam failure in the first link between the relay terminal and the first device send target information;
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link.
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, unable to Access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to resume direct communication with the first device link, unable to restore connection to the first device.
- the sending module includes:
- a sending submodule configured to send target information through the second link according to the current state of the relay terminal
- the target information carries indication information of the current state of the relay terminal, or the target information implicitly indicates the current state of the relay terminal.
- the apparatus further includes at least one of the following:
- a first instruction module configured to send Uu link recovery indication information to the second device after the relay terminal recovers the Uu link
- a second indication module configured to send the indication information of successful cell access to the second device after the relay terminal successfully accesses the reselected cell
- the third instruction module is configured to send direct communication link restoration indication information to the second device after the relay terminal restores the direct communication link with the relayed terminal.
- the target information further carries the identification information of the first device, and the direct communication link in which the radio link failure or the beam failure occurs is indirectly indicated by the identification information of the first device.
- the relay terminal when the relay terminal determines that a radio link failure or beam failure occurs in the first link, the relay terminal notifies the relayed terminal or the network device through the second link, so that the relayed device or the network device It can know that RLF or beam failure has occurred on the other link of the relay, so as to perform corresponding actions.
- the apparatus for processing a link failure provided by the embodiment of the present disclosure may execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again in this embodiment.
- an embodiment of the present disclosure further provides a relay terminal, including: a transceiver 420 , a memory 410 , a processor 400 , and a computer stored on the memory 410 and running on the processor 400 Program instructions, the transceiver 420 receives and sends data under the control of the processor 400, and the processor 400 is used to read the program instructions in the memory, and perform the following operations:
- the target information is sent through the second link between the relay terminal and the second device;
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link.
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, unable to Access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to resume direct communication with the first device link, unable to restore connection to the first device.
- the processor 400 is further configured to read program instructions in the memory, and perform the following operations:
- the target information carries indication information of the current state of the relay terminal, or the target information implicitly indicates the current state of the relay terminal.
- the processor 400 is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the direct communication link restoration indication information is sent to the second device.
- the target information further carries the identification information of the first device, and the direct communication link in which the radio link failure or the beam failure occurs is indirectly indicated by the identification information of the first device.
- the relay terminal when the relay terminal determines that a radio link failure or beam failure occurs in the first link, the relay terminal notifies the relayed terminal or the network device through the second link, so that the relayed device or the network device It can know that RLF or beam failure has occurred on the other link of the relay, so as to perform corresponding actions.
- the relay terminal provided by the embodiments of the present disclosure may execute the above method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again in this embodiment.
- an embodiment of the present disclosure further provides a link failure processing apparatus, which is applied to a second device, including:
- a receiving module 51 configured to receive target information sent by the relay terminal through a second link;
- the second link is a link between the relay terminal and the second device;
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link between the relay terminal and the first device.
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the apparatus when the first link is a Uu link, the apparatus further includes:
- the first processing module is configured to stop data transmission to the first device and/or reselect the relay terminal.
- the apparatus when the first link is a direct communication link, the apparatus further includes at least one of the following:
- a second processing module configured to stop transmitting data to the relayed terminal
- a third processing module configured to release the context of the relayed terminal
- a fourth processing module configured to release the radio link control RLC channel mapping between the first link and the second link
- the fifth processing module is used for reselection of the relay terminal.
- the apparatus further includes:
- a state determination module configured to determine the current state of the relay terminal according to the indication information of the current state of the relay terminal carried by the target information
- it is used to determine, according to the target information, the current state of the relay terminal that is implicitly indicated by the target information.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, unable to Access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to resume direct communication with the first device link, unable to restore connection to the first device.
- the apparatus further includes at least one of the following:
- a sixth processing module configured to reduce or stop the data sent to the network device via the relay terminal if the current state of the relay terminal is to attempt to restore the Uu link or perform cell reselection;
- the seventh processing module is configured to reselect the relay terminal if the current state of the relay terminal is that it cannot access the network.
- the apparatus further includes at least one of the following:
- an eighth processing module configured to restore the data sent to the network device via the relay terminal according to the Uu link recovery indication information sent by the relay terminal;
- the ninth processing module is configured to perform cell access according to the indication information of successful cell access sent by the relay terminal.
- the apparatus further includes:
- the tenth processing module is configured to reduce or stop data sent to the first device via the relay terminal if the current state of the relay terminal is to attempt to restore the direct communication link with the first device.
- the apparatus further includes at least one of the following:
- an eleventh processing module configured to stop transmitting data to the first device
- a twelfth processing module configured to release the context of the first device
- a thirteenth processing module configured to release the radio link control RLC channel mapping between the first link and the second link;
- the fourteenth processing module is used for reselection of the relay terminal.
- the apparatus further includes:
- the fifteenth processing module is configured to restore the data sent to the first device via the relay terminal according to the direct communication link restoration instruction information sent by the relay terminal.
- the relay terminal when the relay terminal determines that a radio link failure or beam failure occurs in the first link, the relay terminal notifies the relayed terminal or the network device through the second link, so that the relayed device or the network device It can know that RLF or beam failure has occurred on the other link of the relay, so as to perform corresponding actions.
- the apparatus for processing a link failure provided by the embodiment of the present disclosure may execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again in this embodiment.
- an embodiment of the present disclosure further provides a communication device, where the communication device is a second device, including: a transceiver 620 , a memory 610 , a processor 600 , and a communication device stored on the memory 610 and available at any location.
- the computer program instructions running on the processor 600, the transceiver 620 receives and transmits data under the control of the processor 600, and the processor 600 is used to read the program instructions in the memory, and perform the following operations:
- the second link is a link between the relay terminal and the second device
- the target information is used to indicate that a radio link failure or a beam failure occurs in the first link between the relay terminal and the first device.
- the first link is a Uu link between the relay terminal and the network device
- the first link is a direct communication link between the relaying terminal and the relayed terminal.
- the processor 600 is further configured to read program instructions in the memory, and perform the following operations:
- the first link is a Uu link
- the processor 600 when the first link is a direct communication link, the processor 600 is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the processor 600 is further configured to read program instructions in the memory, and perform the following operations:
- the current state of the relay terminal implicitly indicated by the target information is determined.
- the relay terminal when the first link is a Uu link, the relay terminal is in at least one of the following states: trying to restore the Uu link, performing cell reselection, unable to Access the network.
- the relay terminal when the first link is a direct communication link, the relay terminal is in at least one of the following states: trying to restore the communication with the first device Direct communication link, unable to restore connection to first device.
- the processor 600 is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the current state of the relay terminal is to attempt to restore the Uu link or perform cell reselection, reduce or stop the data sent to the network device via the relay terminal;
- the relay terminal If the current state of the relay terminal is that it cannot access the network, the relay terminal is reselected.
- the processor 600 is further configured to read program instructions in the memory, and perform at least one of the following operations:
- Cell access is performed according to the indication information of successful cell access sent by the relay terminal.
- the processor 600 is further configured to read program instructions in the memory, and perform at least one of the following operations:
- the processor 600 is further configured to read program instructions in the memory, and perform at least one of the following operations one:
- the processor 600 is further configured to read program instructions in the memory, and perform the following operations:
- the data sent to the first device via the relay terminal is restored.
- the relay terminal when the relay terminal determines that a radio link failure or beam failure occurs in the first link, the relay terminal notifies the relayed terminal or the network device through the second link, so that the relayed device or the network device It can know that RLF or beam failure has occurred on the other link of the relay, so as to perform corresponding actions.
- the communication device provided by the embodiment of the present disclosure can execute the above-mentioned method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again in this embodiment.
- Embodiments of the present disclosure further provide a computer-readable storage medium, where computer program instructions are stored on the computer-readable storage medium, and when the computer program instructions are executed by a processor, the above-mentioned embodiment of the method for processing a link failure is implemented and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
- the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
- Each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or more Microprocessor (digital signal processor, DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array, FPGA), etc.
- ASIC Application Specific Integrated Circuit
- DSP digital signal processor
- FPGA Field Programmable Gate Array
- the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processors that can call program codes.
- CPU central processing unit
- these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
- SOC system-on-a-chip
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Abstract
提供一种链路失败的处理方法、装置、中继终端及通信设备,该方法包括:在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
Description
相关申请的交叉引用
本申请主张在2020年7月10在中国提交的中国专利申请号No.202010661807.5的优先权,其全部内容通过引用包含于此。
本公开涉及无线通信技术领域,尤其是指一种链路失败的处理方法、装置、中继终端及通信设备。
传统的无线通信采用蜂窝网络通信方式,即终端和网络侧设备通过Uu接口进行上下行数据或控制信息的传输。
直接通信是指邻近的终端可以在近距离范围内通过直接通信链路(也成为旁链路Sidelink或者PC5)进行数据传输的方式。Sidelink链路对应的无线接口称为直接通信接口(也称为Sidelink接口或者PC5接口)。
对于相关5G Uu接口,当终端和网络之间的链路发生中断,终端则确定其与网络之间的链路发生了无线链路失败(Radio Link Failure,RLF)或者波束连接失败(Beam Failure),终端就会尝试恢复链路,或进行小区重选。类似Uu接口,接入和回传一体化(Integrated Access and Backhaul,IAB)节点与其母节点之间的链路发生终端,IAB节点则确定与其母节点之间的链路发生了RLF,则IAB节点会发送RLF通知信息给其子节点,通知其子节点其与母节点之间发生了RLF,不能再继续为其子节点提供接入和回传业务了。子节点在接收到母节点发送的RLF通知信息之后,会进行小区重选,从而选择其他IAB节点进行接入,并进行后续的业务传输。
为了扩展网络覆盖,一种解决方案就是引入中继。该中继可以是一个具有中继功能的终端。
-对于终端到网络中继,中继和网络之间的接口使用Uu接口,中继终端和被中继终端(可简称为远端终端)之间的接口使用PC5接口(也称之为直 接通信接口,可描述为Sidelink)。中继和网络之间的链路对远端终端而言可以称为回程链路(Backhaul link)。
-对于终端到终端中继,中继终端和远端终端之间使用的接口都是直接通信接口。
中继两端的链路,例如对于终端到网络中继,中继两端的链路包括:中继到网络之间的Uu链路,以及中继到远端终端之间的Sidelink链路;对于终端到终端中继,中继两端的链路包括:中继到远端终端1之间的Sidelink链路,以及中继到与远端终端2之间的Sidelink链路。
当中继两端链路其中一端链路发生了RLF或者波束连接失败,另一端的终端或者网络并不知道,这样会造成另一端的链路的数据还在发送,但中继终端并不能成功转发。还没有相应的方案来解决上述问题。
发明内容
本公开实施例的目的在于提供一种链路失败的处理方法、装置、中继终端及通信设备,以解决相关的无线链路失败机制无法使用中继场景的问题。
为了达到上述目的,本公开提供一种链路失败的处理方法,应用于中继终端,包括:
在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;
其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下 述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
其中,所述通过第二链路发送目标信息,包括:
根据所述中继终端的当前状态,通过所述第二链路发送目标信息;
其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
其中,所述方法还包括下述至少之一:
当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息;
当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入小区指示信息;
当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二设备发送直接通信链路恢复指示信息。
其中,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。
本公开实施例还提供一种链路失败的处理方法,应用于第二设备,包括:
接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;
其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
其中,在所述第一链路为Uu链路的情况下,所述方法还包括:
停止向第一设备传输数据和/或重选中继终端。
其中,在所述第一链路为直接通信链路的情况下,所述方法还包括下述至少之一:
停止向被中继终端传输数据;
释放被中继终端的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
其中,所述方法还包括:
根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;
或者,
根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
其中,所述方法还包括以下至少之一:
若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据;
若所述中继终端的当前状态为无法接入网络,重选中继终端。
其中,所述方法还包括以下至少之一:
根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;
根据中继终端发送的成功接入小区指示信息,进行小区接入。
其中,所述方法还包括:
若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备的数据。
其中,若所述中继终端的当前状态为无法恢复与第一设备的连接,所述方法还包括以下至少之一:
停止向第一设备传输数据;
释放第一设备的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
其中,所述方法还包括:
根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。
本公开实施例还提供一种链路失败的处理装置,应用于中继终端,包括:
发送模块,用于在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;
其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
本公开实施例还提供一种中继终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序指令,所述收发机在处理器的控制下接收和发送数据,所述处理器用于读取存储器中的程序指令,执行下列操作:
在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;
其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第 一设备的连接。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作:
根据所述中继终端的当前状态,通过所述第二链路发送目标信息;
其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:
当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息;
当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入小区指示信息;
当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二设备发送直接通信链路恢复指示信息。
其中,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。
本公开实施例还提供一种链路失败的处理装置,应用于第二设备,包括:
接收模块,用于接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;
其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
本公开实施例还提供一种通信设备,所述通信设备为第二设备,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序指令,所述收发机在处理器的控制下接收和发送数据,所述处理器用于读取存储器中的程序指令,执行下列操作:
接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;
其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端 与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作:
在所述第一链路为Uu链路的情况下,停止向第一设备传输数据和/或重选中继终端。
其中,在所述第一链路为直接通信链路的情况下,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:
停止向被中继终端传输数据;
释放被中继终端的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作:
根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;
或者,
根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:
若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据;
若所述中继终端的当前状态为无法接入网络,重选中继终端。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:
根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;
根据中继终端发送的成功接入小区指示信息,进行小区接入。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:
若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备的数据。
其中,若所述中继终端的当前状态为无法恢复与第一设备的连接,所述处理器还用于读取存储器中的程序指令,执行下列操作:
停止向第一设备传输数据;
释放第一设备端的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:
根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。
本公开实施例还提供一种计算机可读存储介质,所述计算机可读存储介质上存储计算机程序指令,所述计算机程序指令被处理器执行时实现如上所述的链路失败的处理方法的步骤。
本公开的上述技术方案至少具有如下有益效果:
本公开实施例的链路失败的处理方法、装置、中继终端及通信设备,中继终端确定第一链路发生无线链路失败或波束失败时,中继终端通过第二链路通知被中继终端或网络设备,以使被中继设备或网络设备能够获知中继的另一条链路发生RLF或波束失败,从而执行相应操作。
图1表示本公开实施例提供的链路失败的处理方法的步骤示意图之一;
图2表示本公开实施例提供的链路失败的处理方法的步骤示意图之二;
图3表示本公开实施例提供的链路失败的处理装置的结构示意图之一;
图4表示本公开实施例提供的中继终端的结构示意图;
图5表示本公开实施例提供的链路失败的处理装置的结构示意图之二;
图6表示本公开实施例提供的通信设备的结构示意图。
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。
如图1所示,本公开实施例提供一种链路失败的处理方法,应用于中继终端,包括:
步骤11,在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
需要说明的是,中继场景包括:终端到网络的中继(UE-to-Network Relay)、终端到终端的中继(UE-to-UE relay)。
可选地,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
例如,在终端到网络的中继场景中,第一链路为中继终端与网络设备之间的Uu链路,则第二链路为中继终端与被中继终端之间的直接通信链路;或者,第一链路为中继终端与被中继终端之间的直接通信链路,则第二链路为中继终端与网络设备之间的Uu链路。
再例如,在终端到终端的中继场景中,第一链路为中继终端与第一被中继终端(可称为remote UE1)之间的直接通信链路,则第二链路为中继终端与第二被中继终端(可称为remote UE2)之间的直接通信链路;或者,第一 链路为中继终端与第二被中继终端(可称为remote UE2)之间的直接通信链路,第二链路为中继终端与第一被中继终端(可称为remote UE1)之间的直接通信链路。
作为一个可选实施例,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
作为另一个可选实施例,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备(被中继终端)之间的直接通信链路、无法恢复与第一设备(被中继终端)的连接。
其中,所述第一链路为直接通信链路时,所述目标信息还携带第一设备(被中继终端)的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。例如,目标信息还携带remote UE的ID信息,用于第二设备确定中继终端和哪个remote UE之间的链路发生RLF或者波束失败。
相应的,基于中继终端的当前状态,上述步骤11包括:
根据所述中继终端的当前状态,通过所述第二链路发送目标信息;
其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
一方面,当中继终端尝试恢复Uu链路时,中继终端可以不向第二设备发送任何指示信息。此种情况下,若第二设备为网络设备,则中继终端正常接收被中继终端发送给网络的数据,中继终端将该数据进行缓存,以便于恢复Uu链路之后,可以继续为被中继终端向网络传输数据,或者,为被中继终端转发网络的数据。
另一方面,当中继终端尝试恢复与被中继终端之间的直接通信链路,中继终端可以不向第二设备发送任何指示信息。此种情况下,若第二设备为被中继终端,则中继终端正常接收网络设备或另一个被中继终端发送给该被中继终端的数据,中继终端将该数据进行缓存,以便于恢复直接通路链路之后,可以继续转发网络或另一个被中继终端发送给该被中继终端的数据,或者转发该被中继终端发送给网络或另一个被中继终端的数据。
可选地,本公开的上述实施例中,所述方法还包括下述至少之一:
当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息,从而第二设备可以恢复正常的发送给第一设备的数据传输速率;
当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入小区指示信息,从而第二设备可以进行小区接入,以便于网络设备重新建立第二设备的上下文和/或第一链路与第二链路的RLC信道映射;
当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二设备发送直接通信链路恢复指示信息,从而第二设备可以恢复正常的发送给第一设备的数据传输速率。
综上,本公开实施例中,中继终端确定第一链路发生无线链路失败或波束失败时,中继终端通过第二链路通知被中继终端或网络设备,以使被中继设备或网络设备能够获知中继的另一条链路发生RLF或波束失败,从而执行相应操作。
如图2所示,本公开实施例还提供一种链路失败的处理方法,应用于第二设备,该第二设备可以为网络设备,或者被中继终端;该方法包括:
步骤21,接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
需要说明的是,中继场景包括:终端到网络的中继(UE-to-Network Relay)、终端到终端的中继(UE-to-UE relay)。
可选地,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
例如,在终端到网络的中继场景中,第一链路为中继终端与网络设备之间的Uu链路,则第二链路为中继终端与被中继终端之间的直接通信链路;或者,第一链路为中继终端与被中继终端之间的直接通信链路,则第二链路为中继终端与网络设备之间的Uu链路。
再例如,在终端到终端的中继场景中,第一链路为中继终端与第一被中 继终端(可称为remote UE1)之间的直接通信链路,则第二链路为中继终端与第二被中继终端(可称为remote UE2)之间的直接通信链路;或者,第一链路为中继终端与第二被中继终端(可称为remote UE2)之间的直接通信链路,第二链路为中继终端与第一被中继终端(可称为remote UE1)之间的直接通信链路。
作为本公开的一个可选实施例,在所述第一链路为Uu链路的情况下,所述方法还包括:
停止向第一设备传输数据和/或重选中继终端。
作为本公开的另一个可选实施例,在所述第一链路为直接通信链路的情况下,所述方法还包括下述至少之一:
停止向被中继终端传输数据;
释放被中继终端的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
例如,第一链路为直接通信链路,第二设备为被中继终端时,第二设备释放第一直接通信链路(即第一链路)和第二直接通信链路(即第二链路)的RLC信道映射。
再例如,第一链路为直接通信链路,第二设备为网络设备时,第二设备释放直接通信链路(即第一链路)和Uu链路(即第二链路)的RLC信道映射。
可选地,本公开的上述实施例中,所述方法还包括:
根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;
或者,
根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下 述至少一种状态:尝试恢复与第一设备(被中继终端)之间的直接通信链路、无法恢复与第一设备(被中继终端)的连接。
其中,所述第一链路为直接通信链路时,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。例如,目标信息还携带remote UE的ID信息,用于第二设备确定中继终端和哪个remote UE之间的链路发生RLF或者波束失败。
相应的,所述第一链路为Uu链路时,基于中继终端的当前状态,所述方法还包括以下至少之一:
若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据(以降低中继终端发生数据拥塞的概率);
若所述中继终端的当前状态为无法接入网络(即中继终端不能再继续为被中继终端或网络设备转发数据),则第二设备需要重选中继终端;重新选择一个新的中继终端,以便于通过新的中继终端继续向被中继终端或网络设备发送数据,或者,接收网络或被中继终端的数据。
进一步的,所述方法还包括以下至少之一:
根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;例如,恢复正常的发送给网络设备的数据传输速率;
根据中继终端发送的成功接入小区指示信息,进行小区接入;以便于网络设备重新建立被中继终端上下文和/或第一链路与第二链路的RLC信道映射。
相应的,第一链路为直接通信链路时,基于中继终端的当前状态,所述方法还包括:
若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备(被中继终端)的数据,以降低中继终端发生数据拥塞的概率。
相应的,第一链路为直接通信链路时,基于中继终端的当前状态,若所述中继终端的当前状态为无法恢复与第一设备的连接(即中继终端不能再继 续接收网络设备或被中继终端发送给另一个被中继终端的数据),所述方法还包括以下至少之一:
停止向第一设备传输数据;
释放第一设备的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
例如,第一链路为直接通信链路,第二设备为网络设备,则第二设备还可以进一步通知核心网该网络设备失去了第一链路对应的被中继终端的连接。
再例如,第一链路为直接通信链路,第二设备为被中继终端时,若第二设备在网络控制模式下,则第二设备还需要通知网络设备,以便于网络设备释放第一链路对应的被中继终端的上下文,第二设备与另一个被中继终端之间的连接,第一链路与第二链路的RLC信道映射。
进一步的,所述方法还包括:
根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。例如,网络设备或被中继终端恢复经由中继终端发送给被中继终端的数据传输速率。
综上,本公开实施例中,中继终端确定第一链路发生无线链路失败或波束失败时,中继终端通过第二链路通知被中继终端或网络设备,以使被中继设备或网络设备能够获知中继的另一条链路发生RLF或波束失败,从而执行相应操作。
为了更清楚的描述本公开实施例提供的链路失败的处理方法,下面结合几个示例进行说明。
示例一,对于终端到网络的中继,当Uu链路发生RLF或波束失败
relay UE(中继终端)确定处于如下哪种状态:尝试恢复Uu链路、进行小区重选、无法接入网络;或者relay UE直接发送指示信息。
当relay UE正在尝试恢复Uu链路时,可以不向remote UE(被中继终端)发送任何指示信息,或者向remote UE发送第一指示信息,第一指示信息中包括中继终端的状态信息;或,
当relay UE进行小区重选时,向remote UE发送第二指示信息,第二指 示信息中包括中继终端的状态信息;或,
当relay UE无法接入网络时,向remote UE发送第三指示信息,第三指示信息中包括中继终端的状态信息;或,
relay UE直接发送指示信息。
当remote UE接收到第一指示信息时,remote UE减少或停止经由relay UE发送给网络的数据;可选的,当relay UE恢复连接后,向remote UE发送恢复连接指示信息,remote UE可以恢复正常的发送给网络设备的传输速率;或,
当remote UE接收到第二指示信息时,relay UE进行小区重选以便于remote UE减少或停止经由relay UE发送给网络的数据;当relay UE成功接入小区后,relay UE向remote UE发送成功接入小区指示信息,remote UE需要进行小区接入;或,
当remote UE接收到第三指示信息时,需要进行relay重选,重新选择一个新的relay,以便于通过新的relay继续向网络发送数据,或者接收网络的数据;或,
当remote UE接收到指示信息时,需要进行relay重选,重新选择一个新的relay,以便于通过新的relay继续向网络发送数据,或者接收网络的数据。
示例二,对于终端到网络的中继,当SL链路(直接通信链路)发生RLF或波束失败
relay UE确定处于如下哪种状态:尝试恢复与remote UE的SL链路、无法恢复与remote UE的连接;或者relay UE直接发送指示信息;
当relay UE正在尝试恢复与remote UE的SL链路时,可以不向网络设备发送任何指示信息,或者向网络设备发送第四指示信息,第四指示信息中包括指示信息类型,以及remote UE的ID信息;或,
当relay UE无法恢复与remote UE的连接时,向网络设备发送第五指示信息,第五指示信息中包括指示信息类型,以及remote UE的ID信息;或,
relay UE直接发送指示信息。
当网络设备接收到第四指示信息时,网络设备减少或停止经由relay UE发送给remote UE的数据;可选的,当relay UE恢复连接后,向网络设备发 送恢复连接指示信息,网络设备可以恢复正常发送给remote UE的传输速率;或,
当网络设备接收到第五指示信息时,需要中止传输给remote UE的数据,释放remote UE的上下文和/或SL-Uu链路的RLC信道映射,通知核心网该网络设备失去了remote UE的连接;或,
当网络设备接收到指示信息时,需要中止传输给remote UE的数据,释放remote UE的上下文和/或SL-Uu链路的RLC信道映射,通知核心网该网络设备失去了remote UE的连接。
示例三,对于终端到终端的中继,直接通信链路发生RLF或波束失败
relay UE确定处于如下哪种状态:尝试恢复与remote UE1的SL链路、无法恢复与remote UE1的连接、尝试恢复与remote UE2的SL链路、无法恢复与remote UE2的连接;或者relay UE直接发送指示信息。
当relay UE正在尝试恢复与remote UE1的SL链路时,可以不向remote UE2发送任何指示信息,或者向remote UE2发送第六指示信息,第六指示信息中包括指示信息类型,以及remote UE1的ID信息;或,
当relay UE正在尝试恢复与remote UE2的SL链路时,可以不向remote UE1发送任何指示信息,或者向remote UE1发送第七指示信息,第七指示信息中包括指示信息类型,以及remote UE2的ID信息;或,
当relay UE无法恢复与remote UE1的连接时,向remote UE2发送第八指示信息,第八指示信息中包括指示信息类型,以及remote UE1的ID信息;或,
当relay UE无法恢复与remote UE2的连接时,向remote UE1发送第九指示信息,第九指示信息中包括指示信息类型,以及remote UE2的ID信息;或,
relay UE直接发送指示信息。
当remote UE2接收到第六指示信息时,remote UE2减少或停止经由relay UE发送给remote UE1的数据;可选的,当relay UE恢复与remote UE1的连接后,向remote UE2发送恢复连接指示信息,remote UE2可以恢复正常发送给remote UE1的传输速率;或,
当remote UE1接收到第七指示信息时,remote UE1减少或停止发送给remote UE2的数据;可选的,当relay UE恢复与remote UE2的连接后,向remote UE1发送恢复连接指示信息,remote UE1可以恢复正常发送给remote UE2的传输速率;或,
当remote UE2接收到第八指示信息时,需要中止传输给remote UE1的数据,释放remote UE1的上下文和/或SL-SL链路的RLC信道映射,或进行中继重选。如果remote UE2在网络控制模式下,则remote UE2还需要通知网络设备,以便于网络设备释放remote UE1的上下文,remote UE2和remote UE1之间的链接,和/或SL-SL链路的RLC信道映射,或进行中继重选;或,
当remote UE1接收到第九指示信息时,需要中止传输给remote UE2的数据,释放remote UE2的上下文和/或SL-SL链路的RLC信道映射,或进行中继重选。如果remote UE1在网络控制模式下,则remote UE1还需要通知网络设备,以便于网络设备释放remote UE2的上下文,remote UE1和remote UE2之间的链接,和/或SL-SL链路的RLC信道映射,或进行中继重选;或,
当remote UE2接收到指示信息时,需要中止传输给remote UE1的数据,释放remote UE1的上下文和/或SL-SL链路的RLC信道映射,或进行中继重选。如果remote UE2在网络控制模式下,则remote UE2还需要通知网络设备,以便于网络设备释放remote UE1的上下文,remote UE2和remote UE1之间的链接,和/或SL-SL链路的RLC信道映射,或进行中继重选;或,
当remote UE1接收到指示信息时,需要中止传输给remote UE2的数据,释放remote UE2的上下文和/或SL-Uu链路的RLC channel mapping,或进行中继重选。如果remote UE1在网络控制模式下,则remote UE1还需要通知网络设备,以便于网络设备释放remote UE2的上下文,remote UE1和remote UE2之间的链接,和/或SL-SL链路的RLC信道映射,或进行中继重选。
如图3所示,本公开实施例还提供一种链路失败的处理装置,应用于中继终端,包括:
发送模块31,用于在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;
其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
作为本公开的一个可选实施例,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
作为本公开的一个可选实施例,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
作为本公开的一个可选实施例,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
作为本公开的一个可选实施例,所述发送模块包括:
发送子模块,用于根据所述中继终端的当前状态,通过所述第二链路发送目标信息;
其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
作为本公开的一个可选实施例,所述装置还包括下述至少之一:
第一指示模块,用于当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息;
第二指示模块,用于当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入小区指示信息;
第三指示模块,用于当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二设备发送直接通信链路恢复指示信息。
作为本公开的一个可选实施例,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。
本公开实施例中,中继终端确定第一链路发生无线链路失败或波束失败 时,中继终端通过第二链路通知被中继终端或网络设备,以使被中继设备或网络设备能够获知中继的另一条链路发生RLF或波束失败,从而执行相应操作。
本公开实施例提供的链路失败的处理装置,可以执行上述方法实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
如图4所示,本公开实施例还提供一种中继终端,包括:收发机420、存储器410、处理器400及存储在所述存储器410上并可在所述处理器400上运行的计算机程序指令,所述收发机420在处理器400的控制下接收和发送数据,所述处理器400用于读取存储器中的程序指令,执行下列操作:
在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;
其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
作为本公开的一个可选实施例,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
作为本公开的一个可选实施例,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
作为本公开的一个可选实施例,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
作为本公开的一个可选实施例,所述处理器400还用于读取存储器中的程序指令,执行下列操作:
根据所述中继终端的当前状态,通过所述第二链路发送目标信息;
其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
作为本公开的一个可选实施例,所述处理器400还用于读取存储器中的程序指令,执行下列操作的至少之一:
当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息;
当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入小区指示信息;
当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二设备发送直接通信链路恢复指示信息。
作为本公开的一个可选实施例,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。
本公开实施例中,中继终端确定第一链路发生无线链路失败或波束失败时,中继终端通过第二链路通知被中继终端或网络设备,以使被中继设备或网络设备能够获知中继的另一条链路发生RLF或波束失败,从而执行相应操作。
本公开实施例提供的中继终端,可以执行上述方法实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
如图5所示,本公开实施例还提供一种链路失败的处理装置,应用于第二设备,包括:
接收模块51,用于接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;
其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
作为本公开的一个可选实施例,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
作为本公开的一个可选实施例,在所述第一链路为Uu链路的情况下, 所述装置还包括:
第一处理模块,用于停止向第一设备传输数据和/或重选中继终端。
作为本公开的一个可选实施例,在所述第一链路为直接通信链路的情况下,所述装置还包括下述至少之一:
第二处理模块,用于停止向被中继终端传输数据;
第三处理模块,用于释放被中继终端的上下文;
第四处理模块,用于释放第一链路与第二链路的无线链路控制RLC信道映射;
第五处理模块,用于重选中继终端。
作为本公开的一个可选实施例,所述装置还包括:
状态确定模块,用于根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;
或者,用于根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
作为本公开的一个可选实施例,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
作为本公开的一个可选实施例,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
作为本公开的一个可选实施例,所述装置还包括以下至少之一:
第六处理模块,用于若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据;
第七处理模块,用于若所述中继终端的当前状态为无法接入网络,重选中继终端。
作为本公开的一个可选实施例,所述装置还包括以下至少之一:
第八处理模块,用于根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;
第九处理模块,用于根据中继终端发送的成功接入小区指示信息,进行 小区接入。
作为本公开的一个可选实施例,所述装置还包括:
第十处理模块,用于若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备的数据。
作为本公开的一个可选实施例,若所述中继终端的当前状态为无法恢复与第一设备的连接,所述装置还包括以下至少之一:
第十一处理模块,用于停止向第一设备传输数据;
第十二处理模块,用于释放第一设备的上下文;
第十三处理模块,用于释放第一链路与第二链路的无线链路控制RLC信道映射;
第十四处理模块,用于重选中继终端。
作为本公开的一个可选实施例,所述装置还包括:
第十五处理模块,用于根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。
本公开实施例中,中继终端确定第一链路发生无线链路失败或波束失败时,中继终端通过第二链路通知被中继终端或网络设备,以使被中继设备或网络设备能够获知中继的另一条链路发生RLF或波束失败,从而执行相应操作。
本公开实施例提供的链路失败的处理装置,可以执行上述方法实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
如图6所示,本公开实施例还提供一种通信设备,所述通信设备为第二设备,包括:收发机620、存储器610、处理器600及存储在所述存储器610上并可在所述处理器600上运行的计算机程序指令,所述收发机620在处理器600的控制下接收和发送数据,所述处理器600用于读取存储器中的程序指令,执行下列操作:
接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;
其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
作为本公开的一个可选实施例,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,
或者,
在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
作为本公开的一个可选实施例,所述处理器600还用于读取存储器中的程序指令,执行下列操作:
在所述第一链路为Uu链路的情况下,停止向第一设备传输数据和/或重选中继终端。
作为本公开的一个可选实施例,在所述第一链路为直接通信链路的情况下,所述处理器600还用于读取存储器中的程序指令,执行下列操作的至少之一:
停止向被中继终端传输数据;
释放被中继终端的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
作为本公开的一个可选实施例,所述处理器600还用于读取存储器中的程序指令,执行下列操作:
根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;
或者,
根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
作为本公开的一个可选实施例,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
作为本公开的一个可选实施例,其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
作为本公开的一个可选实施例,所述处理器600还用于读取存储器中的程序指令,执行下列操作的至少之一:
若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据;
若所述中继终端的当前状态为无法接入网络,重选中继终端。
作为本公开的一个可选实施例,所述处理器600还用于读取存储器中的程序指令,执行下列操作的至少之一:
根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;
根据中继终端发送的成功接入小区指示信息,进行小区接入。
作为本公开的一个可选实施例,所述处理器600还用于读取存储器中的程序指令,执行下列操作的至少之一:
若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备的数据。
作为本公开的一个可选实施例,若所述中继终端的当前状态为无法恢复与第一设备的连接,所述处理器600还用于读取存储器中的程序指令,执行下列操作的至少之一:
停止向第一设备传输数据;
释放第一设备的上下文;
释放第一链路与第二链路的无线链路控制RLC信道映射;
重选中继终端。
作为本公开的一个可选实施例,所述处理器600还用于读取存储器中的程序指令,执行下列操作:
根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。
本公开实施例中,中继终端确定第一链路发生无线链路失败或波束失败时,中继终端通过第二链路通知被中继终端或网络设备,以使被中继设备或网络设备能够获知中继的另一条链路发生RLF或波束失败,从而执行相应操作。
本公开实施例提供的通信设备,可以执行上述方法实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
本公开实施例还提供一种计算机可读存储介质,所述计算机可读存储介质上存储计算机程序指令,所述计算机程序指令被处理器执行时实现如上所述的链路失败的处理方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个特定集成电路(Application Specific Integrated Circuit,ASIC),或,一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(Central Processing Unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上***(system-on-a-chip,SOC)的形式实现。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。
Claims (58)
- 一种链路失败的处理方法,应用于中继终端,包括:在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
- 根据权利要求1所述的方法,其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
- 根据权利要求2所述的方法,其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
- 根据权利要求2所述的方法,其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
- 根据权利要求3或4所述的方法,其中,所述通过第二链路发送目标信息,包括:根据所述中继终端的当前状态,通过所述第二链路发送目标信息;其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
- 根据权利要求5所述的方法,还包括下述至少之一:当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息;当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入小区指示信息;当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二 设备发送直接通信链路恢复指示信息。
- 根据权利要求4所述的方法,其中,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。
- 一种链路失败的处理方法,应用于第二设备,包括:接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
- 根据权利要求8所述的方法,其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
- 根据权利要求9所述的方法,其中,在所述第一链路为Uu链路的情况下,所述方法还包括:停止向第一设备传输数据和/或重选中继终端。
- 根据权利要求9所述的方法,其中,在所述第一链路为直接通信链路的情况下,所述方法还包括下述至少之一:停止向被中继终端传输数据;释放被中继终端的上下文;释放第一链路与第二链路的无线链路控制RLC信道映射;重选中继终端。
- 根据权利要求9所述的方法,还包括:根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;或者,根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
- 根据权利要求12所述的方法,其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
- 根据权利要求12所述的方法,其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
- 根据权利要求13所述的方法,还包括以下至少之一:若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据;若所述中继终端的当前状态为无法接入网络,重选中继终端。
- 根据权利要求15所述的方法,还包括以下至少之一:根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;根据中继终端发送的成功接入小区指示信息,进行小区接入。
- 根据权利要求14所述的方法,还包括:若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备的数据。
- 根据权利要求14所述的方法,其中,若所述中继终端的当前状态为无法恢复与第一设备的连接,所述方法还包括以下至少之一:停止向第一设备传输数据;释放第一设备的上下文;释放第一链路与第二链路的无线链路控制RLC信道映射;重选中继终端。
- 根据权利要求17所述的方法,还包括:根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。
- 一种链路失败的处理装置,应用于中继终端,包括:发送模块,用于在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送 目标信息;其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
- 根据权利要求20所述的装置,其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
- 根据权利要求21所述的装置,其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
- 根据权利要求21所述的装置,其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
- 根据权利要求22或23所述的装置,其中,所述发送模块包括:发送子模块,用于根据所述中继终端的当前状态,通过所述第二链路发送目标信息;其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
- 根据权利要求24所述的装置,还包括下述至少之一:第一指示模块,用于当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息;第二指示模块,用于当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入小区指示信息;第三指示模块,用于当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二设备发送直接通信链路恢复指示信息。
- 根据权利要求23所述的装置,其中,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。
- 一种中继终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序指令;其中,所述收发机在处理器的控制下接收和发送数据,所述处理器用于读取存储器中的程序指令,执行下列操作:在中继终端与第一设备之间的第一链路发生无线链路失败或波束失败的情况下,通过所述中继终端与第二设备之间的第二链路发送目标信息;其中,所述目标信息用于指示所述第一链路发生无线链路失败或波束失败。
- 根据权利要求27所述的中继终端,其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
- 根据权利要求28所述的中继终端,其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
- 根据权利要求28所述的中继终端,其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
- 根据权利要求29或30所述的中继终端,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作:根据所述中继终端的当前状态,通过所述第二链路发送目标信息;其中,所述目标信息携带所述中继终端的当前状态的指示信息,或者,所述目标信息隐式指示所述中继终端的当前状态。
- 根据权利要求31所述的中继终端,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:当所述中继终端恢复Uu链路后,向所述第二设备发送Uu链路恢复指示信息;当所述中继终端成功接入重选的小区后,向所述第二设备发送成功接入 小区指示信息;当所述中继终端恢复与被中继终端之间的直接通信链路后,向所述第二设备发送直接通信链路恢复指示信息。
- 根据权利要求30所述的中继终端,其中,所述目标信息还携带第一设备的标识信息,通过所述第一设备的标识信息间接指示发生无线链路失败或波束失败的所述直接通信链路。
- 一种链路失败的处理装置,应用于第二设备,包括:接收模块,用于接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
- 根据权利要求34所述的装置,其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
- 根据权利要求35所述的装置,其中,在所述第一链路为Uu链路的情况下,所述装置还包括:第一处理模块,用于停止向第一设备传输数据和/或重选中继终端。
- 根据权利要求35所述的装置,其中,在所述第一链路为直接通信链路的情况下,所述装置还包括下述至少之一:第二处理模块,用于停止向被中继终端传输数据;第三处理模块,用于释放被中继终端的上下文;第四处理模块,用于释放第一链路与第二链路的无线链路控制RLC信道映射;第五处理模块,用于重选中继终端。
- 根据权利要求35所述的装置,还包括:状态确定模块,用于根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;或者,用于根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
- 根据权利要求38所述的装置,其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
- 根据权利要求38所述的装置,其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
- 根据权利要求39所述的装置,还包括以下至少之一:第六处理模块,用于若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据;第七处理模块,用于若所述中继终端的当前状态为无法接入网络,重选中继终端。
- 根据权利要求41所述的装置,还包括以下至少之一:第八处理模块,用于根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;第九处理模块,用于根据中继终端发送的成功接入小区指示信息,进行小区接入。
- 根据权利要求40所述的装置,还包括:第十处理模块,用于若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备的数据。
- 根据权利要求40所述的装置,其中,若所述中继终端的当前状态为无法恢复与第一设备的连接,所述装置还包括以下至少之一:第十一处理模块,用于停止向第一设备传输数据;第十二处理模块,用于释放第一设备的上下文;第十三处理模块,用于释放第一链路与第二链路的无线链路控制RLC信道映射;第十四处理模块,用于重选中继终端。
- 根据权利要求43所述的装置,还包括:第十五处理模块,用于根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。
- 一种通信设备,所述通信设备为第二设备,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序指令;其中,所述收发机在处理器的控制下接收和发送数据,所述处理器用于读取存储器中的程序指令,执行下列操作:接收中继终端通过第二链路发送的目标信息;所述第二链路为中继终端与第二设备之间的链路;其中,所述目标信息用于指示中继终端与第一设备之间的第一链路发生无线链路失败或波束失败。
- 根据权利要求46所述的通信设备,其中,在所述第一设备为网络设备的情况下,所述第一链路为中继终端与网络设备之间的Uu链路,或者,在所述第一设备为被中继终端的情况下,所述第一链路为中继终端与被中继终端之间的直接通信链路。
- 根据权利要求47所述的通信设备,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作:在所述第一链路为Uu链路的情况下,停止向第一设备传输数据和/或重选中继终端。
- 根据权利要求47所述的通信设备,其中,在所述第一链路为直接通信链路的情况下,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:停止向被中继终端传输数据;释放被中继终端的上下文;释放第一链路与第二链路的无线链路控制RLC信道映射;重选中继终端。
- 根据权利要求47所述的通信设备,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作:根据所述目标信息携带的所述中继终端的当前状态的指示信息,确定所述中继终端的当前状态;或者,根据所述目标信息,确定所述目标信息隐式指示的所述中继终端的当前状态。
- 根据权利要求50所述的通信设备,其中,在所述第一链路为Uu链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复Uu链路、进行小区重选、无法接入网络。
- 根据权利要求50所述的通信设备,其中,在所述第一链路为直接通信链路的情况下,所述中继终端处于下述至少一种状态:尝试恢复与第一设备之间的直接通信链路、无法恢复与第一设备的连接。
- 根据权利要求51所述的通信设备,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:若所述中继终端的当前状态为尝试恢复Uu链路或进行小区重选,减少或停止经由所述中继终端发送给网络设备的数据;若所述中继终端的当前状态为无法接入网络,重选中继终端。
- 根据权利要求53所述的通信设备,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:根据中继终端发送的Uu链路恢复指示信息,恢复经由所述中继终端发送给网络设备的数据;根据中继终端发送的成功接入小区指示信息,进行小区接入。
- 根据权利要求52所述的通信设备,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:若所述中继终端的当前状态为尝试恢复与第一设备之间的直接通信链路,减少或停止经由所述中继终端发送给第一设备的数据。
- 根据权利要求52所述的通信设备,其中,若所述中继终端的当前状态为无法恢复与第一设备的连接,所述处理器还用于读取存储器中的程序指令,执行下列操作的至少之一:停止向第一设备传输数据;释放第一设备的上下文;释放第一链路与第二链路的无线链路控制RLC信道映射;重选中继终端。
- 根据权利要求55所述的通信设备,其中,所述处理器还用于读取存储器中的程序指令,执行下列操作:根据中继终端发送的直接通信链路恢复指示信息,恢复经由所述中继终端发送给第一设备的数据。
- 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储计算机程序指令,所述计算机程序指令被处理器执行时实现如权利要求1至7中任一项所述的链路失败的处理方法的步骤;或者,所述计算机程序指令被处理器执行时实现如权利要求8至19中任一项所述的链路失败的处理方法的步骤。
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