WO2019233338A1 - Procédé, équipement et dispositif de configuration de relais à sauts multiples - Google Patents

Procédé, équipement et dispositif de configuration de relais à sauts multiples Download PDF

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Publication number
WO2019233338A1
WO2019233338A1 PCT/CN2019/089326 CN2019089326W WO2019233338A1 WO 2019233338 A1 WO2019233338 A1 WO 2019233338A1 CN 2019089326 W CN2019089326 W CN 2019089326W WO 2019233338 A1 WO2019233338 A1 WO 2019233338A1
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WIPO (PCT)
Prior art keywords
relay link
relay
link path
dgnb
path
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PCT/CN2019/089326
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English (en)
Chinese (zh)
Inventor
陈喆
孙建成
刘佳敏
张大钧
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电信科学技术研究院有限公司
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Publication of WO2019233338A1 publication Critical patent/WO2019233338A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • 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 application relates to the field of wireless communication technologies, and in particular, to a multi-hop relay configuration method, device, and device.
  • 5G fifth generation mobile communication network
  • relay base stations are introduced into 5G.
  • multi-hop relay is also allowed.
  • Donor gNB donor base station; gNB: next generation NodeB, next generation base station
  • the path needs to be configured, and when the path is interrupted, the RN (Relay node, relay node) needs to be reconfigured.
  • the embodiments of the present application provide a multi-hop relay configuration method, equipment and device, and specifically provide a multi-hop relay configuration method, base station and device, a measurement configuration method, RN and device in a multi-hop relay, A multi-hop relay configuration method, RN and device are used to solve the configuration problem in multi-hop relay.
  • An embodiment of the present application provides a multi-hop relay configuration method, including:
  • DgNB Donor NB, donor base station
  • DgNB configures the first RN to measure the second RN and the third RN, wherein the second RN and all
  • the third RN is an RN capable of accessing the first RN to the network
  • the DgNB configures the measurement of the second RN and the third RN for the first RN through a Radio Resource Control (RRC) function.
  • RRC Radio Resource Control
  • the method when the path of the activated relay link is interrupted, the method further includes:
  • the first RN is instructed to activate the backup relay link path according to the request of the first RN.
  • the method when there are at least two active relay link paths, the method further includes:
  • An embodiment of the present invention provides a measurement configuration method in a multi-hop relay, including:
  • the second RN and / or the third RN searches for the first RN in the vicinity;
  • a third RN performs measurement, where the second RN and the third RN are RNs capable of accessing the first RN to a network.
  • An embodiment of the present invention provides a multi-hop relay configuration method, including:
  • the DgNB When the first RN accesses the network through the second RN, measurement is performed according to the configuration of the DgNB, where the DgNB is configured with the first RN to measure the second RN and the third RN, and the second RN And the third RN is an RN capable of accessing the first RN to the network;
  • the measurement report includes a channel quality between the first RN and the second RN, and a channel quality between the first RN and the third RN Channel quality
  • the method when the path of the activated relay link is interrupted, the method further includes:
  • the activation relay link path interruption is detected and determined in the measurement according to the configuration of the DgNB, and / or, the activation relay link path interruption is determined according to the RN notification on the activation relay link path. .
  • the first communication module is used for data transmission on the active relay link path, and when the data transmission is required on the standby relay link path, the second communication module is used for data transmission.
  • the method further includes:
  • the first communication module is used to start the cell selection process, and the selected relay link path is used as a backup relay link path.
  • the method when there are at least two active relay link paths, the method further includes:
  • An embodiment of the present invention provides a base station.
  • the base station includes a memory and a processor.
  • the memory stores instructions executable by the processor.
  • the processor is configured to read a program in the memory and execute the following: process:
  • the first RN When the first RN accesses the network through the second RN, the first RN is configured to measure the second RN and the third RN, where the second RN and the third RN are capable of measuring all The first RN accesses the RN of the network;
  • a transceiver for receiving and sending data under the control of a processor and performing the following processes:
  • the first RN is configured to measure the second RN and the third RN through the RRC function.
  • the method when the path of the activated relay link is interrupted, the method further includes:
  • the first RN is instructed to activate the backup relay link path according to the request of the first RN.
  • the method when there are at least two active relay link paths, the method further includes:
  • An embodiment of the present invention provides a relay node.
  • the relay node includes a memory and a processor.
  • the memory stores instructions executable by the processor.
  • the processor is configured to read a program in the memory. And perform the following process:
  • a third RN performs measurement, wherein the second RN and the third RN are RNs capable of accessing the first RN to a network;
  • Transceiver for receiving and sending data under the control of the processor.
  • An embodiment of the present invention provides a relay node.
  • the relay node serves as a first RN
  • the RN includes a memory and a processor, and the memory stores instructions executable by the processor.
  • the processor reads the program in the memory and performs the following processes:
  • the DgNB When the first RN accesses the network through the second RN, measurement is performed according to the configuration of the DgNB, where the DgNB is configured with the first RN to measure the second RN and the third RN, and the second RN And the third RN is an RN capable of accessing the first RN to the network;
  • the measurement report includes a channel quality between the first RN and the second RN, and a channel quality between the first RN and the third RN;
  • Transceiver for receiving and sending data under the control of the processor.
  • the method when the path of the activated relay link is interrupted, the method further includes:
  • the activation relay link path interruption is detected and determined in the measurement according to the configuration of the DgNB, and / or, the activation relay link path interruption is determined according to the RN notification on the activation relay link path. .
  • the first communication module is used for data transmission on the active relay link path, and when the data transmission is required on the standby relay link path, the second communication module is used for data transmission.
  • the method further includes:
  • the first communication module is used to start the cell selection process, and the selected relay link path is used as a backup relay link path.
  • the method when there are at least two active relay link paths, the method further includes:
  • An embodiment of the present invention provides a multi-hop relay configuration device, including:
  • a measurement configuration module configured to configure the first RN to measure the second RN and the third RN when the first RN accesses the network through the second RN, wherein the second RN and the first RN are configured to measure Three RNs are RNs capable of accessing the first RN to the network;
  • a relay link path determination module configured to determine a channel quality between DgNB and the second RN, and a channel quality between DgNB and the third RN; upon receiving the measurement of the first RN After reporting, determine the channel quality between the first RN and the second RN and the channel quality between the first RN and the third RN according to the measurement report; and according to the load of the second RN And the load of the third RN and the determined channel quality to determine a relay link path configuration result, where the relay link path configuration result includes the active relay link path of the first RN, and as a backup relay chain Other relay link paths;
  • a notification module configured to notify the first RN of the configuration result of the relay link path.
  • An embodiment of the present invention provides a measurement configuration device in a multi-hop relay, including:
  • a search module configured to search a surrounding first RN when the second RN and / or the third RN are used;
  • a reporting module configured to report the searched first RN to DgNB, so that the DgNB configures the first RN with respect to the first RN when the first RN accesses the network through the second RN;
  • the second RN and the third RN perform measurement, where the second RN and the third RN are RNs capable of accessing the first RN to a network.
  • An embodiment of the present invention provides a multi-hop relay configuration device, including:
  • a measurement module configured to perform measurement according to the configuration of DgNB when the first RN accesses the network through the second RN, where the DgNB is configured with the first RN to the second RN And a third RN performs measurement, and the second RN and the third RN are RNs capable of accessing the first RN to the network;
  • a sending module configured to send a measurement report to the DgNB, where the measurement report includes a channel quality between the first RN and the second RN, and a channel quality between the first RN and the third RN Channel quality
  • the relay link path processing module is configured to receive a relay link path configuration result sent by the DgNB, and activate the relay link path activation result in the relay link path configuration result, to relay the relay chain.
  • the other relay link paths in the path configuration result are used as backup relay link paths.
  • the relay node will find at least two links during the initial access to the network, and one will be activated.
  • Link a backup link. In this way, the relay node can connect to and activate the standby link when the link is broken, and connect to the new node to update the DgNB link configuration.
  • FIG. 1 is a schematic flowchart of implementation of a multi-hop relay configuration method on a DgNB side in an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a measurement configuration method in a multi-hop relay on an RN side that accesses an RN according to an embodiment of the present application;
  • FIG. 3 is a schematic flowchart of an implementation method of a multi-hop relay configuration on an RN side accessed in an embodiment of the present application;
  • FIG. 4 is a schematic diagram of a network structure in an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a path configuration process according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of implementation manner 1 in the case of a link interruption according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of implementation of Option 1 of Method 2 in the case of a link interruption according to an embodiment of the present application;
  • FIG. 8 is a schematic diagram of an implementation process of Option 2 of Method 2 in the case of a link interruption according to an embodiment of the present application;
  • FIG. 9 is a schematic diagram of an implementation process of L3 relay in scheme 2 of scheme 2 in the case of a link interruption according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an RN providing access in an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an access RN according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a multi-hop relay configuration apparatus according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a measurement configuration device in a multi-hop relay according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a multi-hop relay configuration apparatus according to an embodiment of the present application.
  • the path selection for a relay node to access DgNB Donor NB, donor base station
  • the relay node is called an IAB (integrated access backhaul) node, and this name is also used in the embodiment of the present invention.
  • Figure 1 is a schematic diagram of the implementation process of a multi-hop relay configuration method on the DgNB side. As shown in the figure, it may include:
  • Step 101 When the first RN accesses the network through the second RN, DgNB configures the first RN to measure the second RN and the third RN, where the second RN and the third RN are measured.
  • Step 102 Determine a channel quality between DgNB and the second RN, and a channel quality between DgNB and the third RN. After receiving a measurement report of the first RN, determine it according to the measurement report. Channel quality between the first RN and the second RN, and channel quality between the first RN and the third RN;
  • Step 103 Determine a relay link path configuration result according to the load of the second RN, the load of the third RN, and the determined channel quality.
  • the relay link path configuration result includes the activated relay chain of the first RN. Path, and other relay link paths as backup relay link paths;
  • the determined channel quality includes a channel instruction between the first RN and the second RN, and a channel instruction between the first RN and the third RN.
  • Step 104 Notify the first RN of the configuration result of the relay link path.
  • the configuration result of the relay link path includes the activated relay link path and other relay link paths as backup relay link paths.
  • the other relay link paths are other relay chains except the activated relay link path. Road path.
  • FIG. 2 is a schematic flowchart of a measurement configuration method in a multi-hop relay on an RN side accessing an RN. As shown in the figure, it may include:
  • Step 201 The second RN and / or the third RN search for a surrounding first RN;
  • Step 202 Report the searched first RN to DgNB, so that when the first RN accesses the network through the second RN, configure the first RN to measure the second RN and the third RN, where the second RN And the third RN is an RN that can connect the first RN to the network.
  • FIG. 3 is a schematic flowchart of an implementation method of a multi-hop relay configuration on an RN side. As shown in the figure, it may include:
  • Step 301 When the first RN accesses the network through the second RN, perform measurement according to the configuration of the DgNB.
  • the DgNB is configured with the first RN to measure the second RN and the third RN.
  • the second RN and the third RN are An RN capable of connecting the first RN to the network;
  • Step 302 The first RN sends a measurement report to the DgNB, where the measurement report includes the channel quality between the first RN and the second RN, and the channel quality between the first RN and the third RN;
  • Step 303 The first RN receives the relay link path configuration result sent by the DgNB, and activates the activated relay link path in the configuration of the relay link path configuration result according to the configuration.
  • the relay link path acts as a backup relay link path.
  • FIG. 4 is a schematic diagram of a network structure. As shown in the figure, the network structure is one of the network architectures that can implement the solutions provided in the embodiments of the present invention. In order to better understand the implementation of the solutions provided in the embodiments of the present invention, we will now combine This structure will be described.
  • RN8 is the first RN
  • RN2 is the second RN
  • RN7 is the third RN.
  • RN8, RN2, and RN7 are specific examples.
  • a second RN and a third RN are used as an example.
  • the second RN and third RN that is, in this case, there are multiple active relay link paths and multiple standby relay link paths, but after learning that one active relay link path and standby relay link In the case of implementation of road paths, it is easy to know the implementation of multiple paths.
  • the selected path can be RN8-> RN2-> Donor NB, or RN8-> RN7-> Donor NB.
  • RN2 and RN7 can report the load status through F1 signaling, including wireless load, hardware load, and transmission load.
  • RN2 and RN7 can transfer the load situation through the Ng interface.
  • DgNB knows the channel quality of RN7 and RN2, so DgNB can configure RN8 according to the channel quality of RN7 and RN2 and the load of RN7 and RN2.
  • the load of the second RN and / or the third RN is reported in the L2IAB architecture through F1 signaling; and / or,
  • the load of the second RN and / or the third RN is transmitted through the Ng interface in the L3 LAB architecture.
  • step 102 the channel quality between DgNB and the second RN and the channel quality between DgNB and the third RN are determined;
  • the assumed IAB node working scenario is an active link and a standby link.
  • the active link is interrupted, the IAB node automatically switches to the standby link.
  • the processes including link establishment and link switching will be described below.
  • Figure 5 is a schematic diagram of the implementation process of the path configuration process. As shown in the figure, it may include:
  • Step 501 DgNB sends a path configuration command to RN8 via RN7.
  • Step 502 RN8 returns a path configuration response to DgNB via RN7.
  • RN8 accesses the network as UE (User Equipment) after powering on. During the process of accessing the network, RN7 is selected to access the network according to the cell selection criteria (standard).
  • UE User Equipment
  • RN7 does not have RRC (Radio Resource Control) function, so DgNB configures measurement for RN8 through RRC, and RN8 measures and reports RN7 and RN2, that is, during implementation, on the DgNB side, DgNB can pass
  • the RRC function configures the measurement of the second RN and the third RN for the first RN.
  • DgNB According to the channel quality reported by RN8-> RN7 and RN8-> RN2, and the load of RN7 and RN2, and the channel quality of RN7 and RN2 to DgNB, it is assumed that RN8-> RN2-> DgNB is the best The path, that is, RN8-> RN2-> DgNB will be used as the active relay link path, and RN8-> RN7-> DgNB will be used as the standby relay link path.
  • DgNB sends an RRC message through RN7 to configure the access path of RN8 to RN8-> RN2-> DgNB.
  • RN8 maintains the connection with RN7 through one communication module, and at the same time, RN8 connects to RN2 through another communication module that is used to connect to RN7, and configures RN2 as the primary link link and RN7 as the backup link link. That is, in the implementation, on the accessing RN side, the first communication module can be used for data transmission on the active relay link path, and the second communication module is used when data transmission is required on the standby relay link path. Data transfer.
  • the current RN8-> RN2-> DgNB is the active link
  • RN8-> RN7-> DgNB is the standby link
  • RN8-> RN2 link is interrupted, RN8 initiates the backup relay link path activation, and activates the relay link path deletion process.
  • the path of the activated relay link when the path of the activated relay link is interrupted, it may further include:
  • FIG. 6 is a schematic diagram of an implementation process of Mode 1 in the case of a path interruption of an activated relay link, as shown in the figure, which may include:
  • Step 601 RN8 sends a request for activating a standby path to DgNB via RN7;
  • Step 602 The DgNB returns an activation standby path confirmation to RN8 via RN7.
  • the path interruption of the activated relay link may be detected and determined in a measurement performed according to the configuration of the DgNB.
  • DgNB configures measurement for RN8.
  • RN8 uses the configured measurement configuration to measure the signal strength of RN2
  • a high-frequency flicker occurs, that is, the sending of data to RN2 is interrupted, and it is directly switched to RN7.
  • a switch request is sent to activate the backup relay link path.
  • the IAB node initiates a request to activate the standby link by itself, and the request for activating the standby link includes a request to delete the active link that has been disconnected. This can update the maintenance of the IAB node link in DgNB.
  • RN7 becomes the active relay link path
  • this communication module starts the cell selection process and selects RN9 as the backup relay link path.
  • the link establishment process in Embodiment 1 is called, and RN9 is established as a backup relay link path. That is, in the implementation, on the access RN side, after the active relay link path is deleted, it may further include:
  • the first communication module is used to start the cell selection process, and the selected relay link path is used as a backup relay link path.
  • the method may further include:
  • the first RN is instructed to activate the backup relay link path according to the request of the first RN.
  • RN8 when the RN2-DgNB link is interrupted, because RN8 does not know that the RN2 and DgNB relay links have been interrupted, and the current relay node RN2 does not have the RRC function, RN8 cannot obtain the re-established link from RN2. Instructions. Then there are two schemes that can trigger RN8 handover link:
  • Solution 1 DgNB initiates backup relay link path activation and relay link path update.
  • the first RN is instructed to activate the backup relay link path through the backup relay link path.
  • FIG. 7 is a schematic diagram of the implementation process of Option 1 of Mode 2 in the case of a link interruption. As shown in the figure, it may include:
  • Step 701 DgNB sends a command to activate the standby path to RN8 via RN7;
  • Step 702 RN8 returns an active standby path response to DgNB via RN7.
  • DgNB saves the backup link path of RN8, so DgNB can detect the link interruption of RN2-> DgNB, so DgNB can send it through the backup path DgNB-> RN7-> RN8. Command to activate alternate paths.
  • This solution is applicable to the L2 relay architecture.
  • Solution 2 RN8 initiates backup relay link path activation and relay link path update.
  • the first RN is instructed to activate the backup relay link path according to the request of the first RN.
  • the interruption of the active relay link path is notified by the RN on the active relay link path.
  • the first RN activates the backup relay link path; and / or deletes the activated relay link path.
  • FIG. 8 is a schematic diagram of an implementation process of Option 2 of Mode 2 in the case of a link interruption. As shown in the figure, it may include:
  • Step 801 RN2 sends a link interruption indication to RN8.
  • Step 802 RN8 sends a request for activating a standby path to DgNB via RN7;
  • Step 803 The DgNB returns an activation standby path confirmation to RN8 via RN7.
  • FIG. 9 is a schematic diagram of the implementation process of the L3 relay of the second option 2 in the case of a link interruption. If the L3 relay is an L3 relay, the message flow is shown in the figure and may include:
  • Step 901 RN2 sends a link interruption indication to RN8.
  • Step 902 RN8 sends a request for activating a standby path to RN7.
  • Step 903 The RN7 sends a request to activate the standby path to the DgNB.
  • Step 904 DgNB returns an acknowledgement to the RN7 to activate the standby path;
  • Step 905 RN7 returns an active standby path confirmation to RN8.
  • RN2 after detecting a link interruption with DgNB, RN2 sends a link interruption indication to RN8 because the link with RN8 has not been interrupted. After receiving this indication, RN8 starts the standby path activation process by itself.
  • the UE has multiple active relay link paths at the same time, and the UE is free to select any active relay link path for transmission. That is, the implementation is performed when there are multiple activated relay link paths and multiple standby relay link paths. In this case:
  • the method further includes:
  • the method further includes:
  • the RN can perform two types of transmission on multiple links:
  • a data packet of PDCP Packet Data Convergence Protocol
  • PDU Protocol Data Unit
  • PDCP PDU 2 Packet Data Convergence Protocol
  • PDCP PDU 3 Packet Data Unit 1
  • PDCP, PDU1, PDCP, PDU2, PDCP, PDU3 to enhance reliable transmission. In this way, transmission fails on one link, and successful transmission on another link can also achieve reliable transmission.
  • the peer PDCP entity serves as the anchor point for duplication, and the receiving end uses PDCP (Sequence Number) as the identification of duplication detection (duplicate detection) to discard the PDCP PDUs that are received repeatedly.
  • PDCP Sequence Number
  • the opposite PDCP entity is responsible for multiple reordering entities that activate the relay link path to receive, and reorders according to the PDCP SN sequence number.
  • the PDCP and SN numbers received from the two active relay link paths are in order: PDCP, PDU1, PDCP, PDU4, PDCP, PDU2, PDCP, PDU5, PDCP, PDU6, PDCP, PDU3, and so on. Sort.
  • embodiments of the present invention further provide a base station, RN, a multi-hop relay configuration device, a measurement configuration device in a multi-hop relay, and a multi-hop relay configuration device.
  • the principle of solving the problem is similar to a multi-hop relay configuration method, a measurement configuration method in a multi-hop relay, and a multi-hop relay configuration method. Therefore, the implementation of these devices can refer to the method implementation. No longer.
  • FIG. 10 is a schematic structural diagram of a base station. As shown in the figure, the base station includes a memory 1020 and a processor 1000.
  • the memory 1020 stores instructions that can be executed by the processor 1000, and the processor 1000 is used to read the memory. Program in 1020 and perform the following process:
  • the first RN When the first RN accesses the network through the second RN, the first RN is configured to measure the second RN and the third RN, where the second RN and the third RN are capable of measuring all The first RN accesses the RN of the network;
  • the transceiver 1010 is configured to receive and send data under the control of the processor 1000 and execute the following processes:
  • the first RN is configured to measure the second RN and the third RN through the RRC function.
  • the method when the path of the activated relay link is interrupted, the method further includes:
  • the first RN is instructed to activate the backup relay link path according to the request of the first RN.
  • the method when there are at least two active relay link paths, the method further includes:
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1000 and various circuits of the memory represented by the memory 1020 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not further described herein.
  • the bus interface provides an interface.
  • the transceiver 1010 may be multiple elements, including a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium.
  • the processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 when performing operations.
  • FIG. 11 is a structural diagram of an RN providing access. As shown, the RN includes a memory 1120 and a processor 1100.
  • the memory 1120 stores instructions that can be executed by the processor 1100.
  • the processor 1100 is used for To read the program in the memory 1120 and execute the following process:
  • the transceiver 1110 is configured to receive and send data under the control of the processor 1100.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1100 and various circuits of the memory represented by the memory 1120 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not further described herein.
  • the bus interface provides an interface.
  • the transceiver 1110 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the user interface 1130 may also be an interface capable of externally connecting and connecting the required devices.
  • the connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 when performing operations.
  • FIG. 12 is a structural diagram of an access RN. As shown, the RN includes a memory 1220 and a processor 1200.
  • the memory 1220 stores instructions that can be executed by the processor 1200.
  • the processor 1200 is used for reading Fetch the program in the memory 1220 and perform the following process:
  • the DgNB When the first RN accesses the network through the second RN, measurement is performed according to the configuration of the DgNB, where the DgNB is configured with the first RN to measure the second RN and the third RN, and the second RN And the third RN is an RN capable of accessing the first RN to the network;
  • the measurement report includes the channel quality between the first RN and the second RN, and the channel quality between the first RN and the third RN;
  • the transceiver 1210 is configured to receive and send data under the control of the processor 1200.
  • the method when the path of the activated relay link is interrupted, the method further includes:
  • the activation relay link path interruption is detected and determined in the measurement according to the configuration of the DgNB, and / or, the activation relay link path interruption is determined according to the RN notification on the activation relay link path. .
  • the first communication module is used for data transmission on the active relay link path, and when the data transmission is required on the standby relay link path, the second communication module is used for data transmission.
  • the method further includes:
  • the first communication module is used to start the cell selection process, and the selected relay link path is used as a backup relay link path.
  • the method when there are at least two active relay link paths, the method further includes:
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1200 and various circuits of the memory represented by the memory 1220 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not further described herein.
  • the bus interface provides an interface.
  • the transceiver 1210 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the user interface 1230 may also be an interface capable of externally connecting internally required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1200 when performing operations.
  • FIG. 13 is a schematic structural diagram of a multi-hop relay configuration device. As shown in the figure, it may include:
  • a measurement configuration module 1301 is configured to configure the first RN to measure the second RN and the third RN when the first RN accesses the network through the second RN, where the second RN and the third RN are configured to perform measurement.
  • the third RN is an RN capable of accessing the first RN to the network;
  • a relay link path determination module 1302 is configured to determine a channel quality between DgNB and the second RN, and a channel quality between DgNB and the third RN; upon receiving a measurement report of the first RN Then, the channel quality between the first RN and the second RN and the channel quality between the first RN and the third RN are determined according to the measurement report; according to the load of the second RN, The load of the third RN and the determined channel quality determine a relay link path configuration result, and the relay link path configuration result includes an active relay link path of the first RN and a backup relay link. Other relay link paths of the path;
  • the notification module 1303 is configured to notify the first RN of the configuration result of the relay link path.
  • FIG. 14 is a schematic structural diagram of a measurement configuration device in a multi-hop relay. As shown in the figure, it may include:
  • the search module 1401 is configured to search for a surrounding first RN when the second RN and / or the third RN are used;
  • a reporting module 1402 is configured to report the searched first RN to DgNB, so that when the first RN accesses the network through the second RN, the first RN is configured to configure the second RN to the second RN.
  • the RN and the third RN perform measurement, where the second RN and the third RN are RNs capable of connecting the first RN to the network.
  • FIG. 15 is a schematic structural diagram of a multi-hop relay configuration device. As shown in the figure, it may include:
  • a measurement module 1501 is configured to perform measurement according to the configuration of DgNB when the first RN accesses the network through the second RN, where the DgNB is configured with the first RN to the second RN.
  • the RN and the third RN perform measurement, and the second RN and the third RN are RNs capable of connecting the first RN to the network;
  • a sending module 1502 is configured to send a measurement report to the DgNB, where the measurement report includes a channel quality between the first RN and a second RN, and a channel quality between the first RN and a third RN;
  • the relay link path processing module 1503 is configured to receive a relay link path configuration result sent by the DgNB, and activate the relay link path activation result in the relay link path configuration result to transfer the relay link.
  • the other relay link paths in the path configuration result are used as backup relay link paths.
  • each part of the device described above is divided into various modules or units according to functions.
  • the functions of each module or unit can be implemented in the same or multiple software or hardware.
  • an embodiment of the present invention proposes a solution for link establishment and maintenance in a 5G relay network.
  • the relay node looks for two links during the initial access to the network, one active link and one backup link.
  • the relay node can connect to and activate the standby link when the link is broken, and connect to the new node to update the DgNB link configuration.
  • a DgNB link selection scheme a DgNB link configuration process, a relay link interruption establishment process, a relay activation backup link process, and a relay initiated update of the DgNB link configuration are also specifically provided.
  • Specific implementations such as a process, a process in which DgNB detects a link interruption, a process in which DgNB activates a backup link, and a process in which DgNB initiates an update of a DgNB link configuration.
  • the embodiments of the present invention may be provided as a method, a system, or a computer program product. Therefore, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, magnetic disk memory, optical memory, etc.) containing computer-usable program code.
  • a computer-usable storage media including, but not limited to, magnetic disk memory, optical memory, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé, un équipement et un dispositif de configuration de relais à sauts multiples, comprenant les étapes suivantes : lorsqu'un premier RN accède à un réseau au moyen d'un deuxième RN, une DgNB configure le premier RN pour mesurer le deuxième RN et un troisième RN ; après réception d'un rapport de mesure du premier RN, en fonction d'une qualité de canal entre le premier RN et le deuxième RN et le premier RN et le troisième RN, d'une charge du deuxième RN et d'une charge du troisième RN, la détermination d'un trajet de liaison de relais actif du premier RN, et l'utilisation d'autres trajets de liaison de relais en tant que trajets de liaison de relais de veille ; et la notification d'un résultat de configuration de trajet de liaison de relais au premier RN. Lorsque le premier RN accède au réseau au moyen du deuxième RN, une mesure est effectuée selon la configuration de la DgNB ; le premier RN reçoit le résultat de la configuration de trajet de liaison de relais qui est transmise par la DgNB, active un trajet de liaison de relais actif selon la configuration, et utilise d'autres trajets de liaison de relais en tant que trajets de liaison de relais de veille. À l'aide de la présente invention, une solution technique faisable pour un processus de configuration de relais à sauts multiples est proposée.
PCT/CN2019/089326 2018-06-06 2019-05-30 Procédé, équipement et dispositif de configuration de relais à sauts multiples WO2019233338A1 (fr)

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