WO2020030109A1 - 信息传输方法及装置、存储介质和电子装置 - Google Patents

信息传输方法及装置、存储介质和电子装置 Download PDF

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Publication number
WO2020030109A1
WO2020030109A1 PCT/CN2019/099976 CN2019099976W WO2020030109A1 WO 2020030109 A1 WO2020030109 A1 WO 2020030109A1 CN 2019099976 W CN2019099976 W CN 2019099976W WO 2020030109 A1 WO2020030109 A1 WO 2020030109A1
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Prior art keywords
information
link
identifier
context
terminal
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PCT/CN2019/099976
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English (en)
French (fr)
Inventor
罗薇
陈琳
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中兴通讯股份有限公司
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Priority to KR1020217006767A priority Critical patent/KR102478342B1/ko
Priority to EP19847537.8A priority patent/EP3836585A4/en
Priority to US17/267,143 priority patent/US11582830B2/en
Publication of WO2020030109A1 publication Critical patent/WO2020030109A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/047Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • H04W36/087Reselecting an access point between radio units of access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305Handover due to radio link failure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/27Control channels or signalling for resource management between access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14Backbone network devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/20Interfaces between hierarchically similar devices between access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/085Access point devices with remote components

Definitions

  • This application relates to, but is not limited to, the field of communications, and in particular, to an information transmission method and device, a storage medium, and an electronic device.
  • RN Relay Node
  • the RN provides functions and services similar to ordinary eNBs to the user equipment (User Equipment) that accesses its cell.
  • the wireless interface between the RN and the UE is called an "Access Link", and the RN passes the wireless interface.
  • a base station eNB serving it is accessed in a manner similar to a normal UE, and an eNB serving the RN is called a Donor eNB (DeNB).
  • DeNB Donor eNB
  • the radio interface between the RN and the DeNB is called a "backhaul link”.
  • FIG. 1 is a schematic diagram of an IAB link in the related art. IAB node A is connected to the core network through an optical fiber, and is an IAB donor, while IAB nodes B and C are not connected to the core network, and are ordinary IABs.
  • FIG. 2 is a schematic diagram of the link of the IAB node as a relay in the related technology.
  • the IAB can transmit data to the IAB donor through multiple IABs as relays.
  • IAB is hierarchical.
  • the so-called IAB level represents the number of IAB hops that the IAB transmission needs to pass to reach the IAB donor.
  • the level of the donor IAB is 0 and the level of the UE accessing the IAB is N.
  • the transmission path of the UE and the core network sequentially passes through the IABs of the levels 1, 2, and ..N.
  • an IAB with a level of n + 1 is a UE for an IAB with a level of n.
  • an IAB with a level of n is for a level of n.
  • the IAB is the serving community. If the IAB at level n + 1 accesses the IAB at level n through the Uu port in a UE manner, the IAB named at level n is the parent node of the IAB at level n + 1, and the IAB at level n + 1 Are children of the IAB at level n. Each IAB can choose to access one or more parent nodes.
  • the CU is only located in the IAB donor, and the non-donor IAB only includes the terminal part function and the DU part function, that is, when the IAB As the terminal accesses the upper layer IAB, the DU of the upper layer IAB serves as the serving cell of the lower layer IAB.
  • DU Distributed Unit
  • CU Centralized Unit
  • the embodiments of the present application provide an information transmission method and device, a storage medium, and an electronic device, so as to at least solve the problem that the link switching process in the IAB network in the related technology is complicated and the link is prolonged when it is interrupted.
  • an information transmission method including: integrating an access backhaul host IAB donor entity part to transmit information to a distributed unit DU, wherein the information is used to instruct the distributed unit DU to perform Link state transition.
  • an information transmission method including: distributed unit DU determining link state information of a link state with a terminal; transmitting the link state information to an IAB donor The physical part.
  • an information transmission method is further provided.
  • the distributed unit DU receives information transmitted by the integrated access backhaul host IAB donor entity entity, wherein the information is used to indicate the distributed unit. Perform link switching; the distributed unit transmits UE context response information to the IAB donor entity part.
  • an information transmission method including: a distributed unit DU determines that a link with a terminal is not activated, and the DU allocates resources to the terminal: the distributed The unit DU receives a control message sent by the terminal.
  • an information transmission method including: integrated access backhaul host IAB donor entity partially transmitting UE context request to distributed unit DU; receiving UE context response message sent by the DU
  • the UE context request includes at least one of the following information: frequency point information; resource configuration information;
  • the UE context request includes: a UE context establishment request or a UE context adjustment request;
  • the UE context response includes: a UE context establishment response or a UE context Adjust the response.
  • an information transmission device including: a first transmission module for transmitting information to the distributed unit DU, wherein the information is used to instruct the distributed unit DU to perform a chain Road state transition.
  • an information transmission device including: a second determination module for determining link state information of a link status with the terminal; a second transmission module for: Transmitting the link state information to the IAB donor entity part.
  • an information transmission device and a third receiving module configured to receive information transmitted by the integrated access backhaul host IAB donor entity entity, where the information is used to indicate the information
  • the distributed unit performs link switching;
  • a third transmission module is configured to transmit UE context response information to the IAB donor entity part.
  • an information transmission device including: a fourth determining module, configured to determine that a link with a terminal is not activated, and allocating resources to the terminal: a fourth receiving module , Used to receive control messages sent by the terminal.
  • an information transmission device including: a fifth transmission module for transmitting a UE context request to a distributed unit DU; and a fifth receiving module for receiving the DU transmission A UE context response message; wherein the UE context request includes at least one of the following information: frequency point information; resource configuration information; wherein the UE context request includes: a UE context establishment request or a UE context adjustment request; the UE context response includes: a UE context Setup response or UE context adjustment response.
  • a storage medium stores a computer program, and the computer program is configured to execute any one of the foregoing method embodiments when running.
  • an electronic device which includes a memory and a processor.
  • the memory stores a computer program
  • the processor is configured to run the computer program to execute any one of the foregoing. Methods.
  • the IAB donor entity partly transmits information to the DU, and this information is used to instruct the DU to perform link state switching.
  • the DU performs link state switching in time according to the received information, increasing the flexibility of switching links This avoids long interruption delays, and solves the problem that the link switching process in the IAB network in the related technology is complicated and the link is prolonged when the link is interrupted.
  • FIG. 1 is a schematic diagram of an IAB link in the related art
  • FIG. 2 is a schematic diagram of a link of an IAB node as a relay in the related art
  • FIG. 3 is a block diagram of a hardware structure of a mobile terminal in an information transmission method according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of a specific embodiment 1 of this application document.
  • FIG. 6 is a schematic diagram of a link conversion process according to a specific embodiment 2 of the present application.
  • FIG. 7 is a schematic diagram of a specific embodiment 3 according to the application document.
  • An embodiment of the present application provides a mobile communication network (including an IAB mobile communication network).
  • the network architecture of the network may include an IAB host entity part (also referred to as a CU), a DU part, and a terminal.
  • the terminal includes an ordinary terminal, and also includes a terminal function part of the IAB entity.
  • This embodiment provides an information transmission method that can be run on the above network architecture. It should be noted that the operating environment of the above information transmission method provided in the embodiment of the present application is not limited to the above network architecture.
  • FIG. 3 is a block diagram of a hardware structure of a mobile terminal in an information transmission method according to an embodiment of the present application.
  • the mobile terminal 30 may include one or more (only one shown in FIG. 3) a processor 302 (the processor 302 may include a microprocessor (Microcontroller Unit, MCU) or a programmable logic device (Field Programmable A processing device such as a gate array (FPGA) and a memory 304 for storing data.
  • MCU microprocessor
  • FPGA gate array
  • the mobile terminal may further include a transmission device 306 and an input / output device 308 for communication functions.
  • a transmission device 306 and an input / output device 308 for communication functions.
  • the structure shown in FIG. 3 is only schematic, and it does not limit the structure of the above mobile terminal.
  • the mobile terminal 30 may further include more or fewer components than those shown in FIG. 3 or have a different configuration from that shown in FIG. 3.
  • the memory 304 may be used to store software programs and modules of application software, such as program instructions / modules corresponding to the information transmission method in the embodiment of the present application.
  • the processor 302 executes a variety of programs by running the software programs and modules stored in the memory 304. Function application and data processing, that is, the above method is implemented.
  • the memory 304 may include a high-speed random access memory, and may further include a non-volatile memory, such as one or more magnetic storage devices, a flash memory, or other non-volatile solid-state memory.
  • the memory 304 may further include memories remotely set with respect to the processor 302, and these remote memories may be connected to the mobile terminal 30 through a network. Examples of the above network include the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the transmission device 306 is used for receiving or transmitting data via a network.
  • a specific example of the network described above may include a wireless network provided by a communication provider of the mobile terminal 30.
  • the transmission device 306 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet.
  • the transmission device 306 may be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.
  • RF radio frequency
  • FIG. 4 is a flowchart of an information transmission method according to an embodiment of the present application. As shown in FIG. 4, the process includes the following steps:
  • Step S402 the integrated access backhaul host IAB donor entity partially transmits information to the distributed unit DU;
  • IAB donor entity part includes IAB donor centralized unit CU and IAB donor distributed unit DU.
  • Step S404 wherein the information is used to instruct the distributed unit DU to perform link state transition.
  • the IAB donor entity partially transmits information to the DU, and this information is used to instruct the DU to switch the link state.
  • the DU performs the link state switch in time according to the received information, increasing the flexibility of switching the link. This avoids long interruption delays, and solves the problem that the link switching process in the IAB network in the related technology is complicated and the link is prolonged when the link is interrupted.
  • the execution subject of the above steps may be IAB, donor, CU, etc., but is not limited thereto.
  • the information is first information, and the first information includes at least one of: an identifier of a cell group requesting activation; an indication of a frequency point of the cell requesting activation; a path identifier requesting activation, wherein the path identifier Including the uplink General Packet Radio Service Tunneling Protocol (GTP) tunnel identity or UE F1 Application Protocol (F1Application Protocol F1AP) identity or gNB-DU identity; signaling bearer identity requesting activation; requesting activation Data bearer identification; detached bearer identification for request activation; resource configuration information list; reconfiguration message RRCConnectionReconfiguration;
  • GTP General Packet Radio Service Tunneling Protocol
  • F1Application Protocol F1AP Application Protocol
  • the resource configuration information list includes resource configuration information of multiple DU nodes, and the resource configuration information includes at least one of the following: time resource indication, frequency domain resource indication, frequency point indication, beam direction or index indication, and bandwidth portion BWP instructions.
  • the RRCConnectionReconfiguration includes at least one of: an activated cell group identifier; an activated cell frequency point indication; an activated path identifier, wherein the path identifier includes an uplink GTP tunnel identifier or a UE F1AP identifier or a gNB-DU Identification; activated signaling bearer identification; activated data bearer identification; activated separated bearer identification;
  • the resource configuration information list includes resource configuration information of multiple DU nodes.
  • the resource configuration information includes at least one of the following: time resource indication, frequency domain resource indication, frequency point indication, beam direction or index indication, and bandwidth portion. BWP instructions.
  • the terminal context adjustment request information carries the information, that is, UE Context Modification Request Message.
  • the information is second information, and the second information includes at least one of: a deactivated cell group identifier; a deactivated cell frequency point indication; a deactivated path identifier, wherein the path identifier Including uplink GTP tunnel identity or UE F1AP identity or gNB-DU identity; deactivated signaling bearer identity; deactivated data bearer identity; deactivated separate bearer identity; reconfiguration message RRCConnectionReconfiguration.
  • the RRCConnectionReconfiguration includes at least one of: a deactivated cell group identifier; a deactivated cell frequency point indication; and a deactivated path identifier, wherein the path identifier includes an uplink GTP tunnel identifier or a UE F1AP identifier or gNB-DU identity; deactivated signaling bearer identity; deactivated data bearer identity; deactivated separate bearer identity.
  • the RRCConnectionReconfiguration message is forwarded to the terminal by the DU.
  • an information transmission method including the following steps:
  • Step 1 The distributed unit DU determines link state information of a link state with the terminal;
  • Step 2 transmitting the link state information to an IAB donor entity.
  • the DU timely transmits the detected link state information to the IAB donor entity part, which facilitates the IAB donor entity part to manage the link.
  • the link state fails, it can timely issue information indicating the switchover of the link. It avoids long-term interruption delays and solves the problem that the link switching process in the IAB network in the related technology is complicated and the link is prolonged when the link is interrupted.
  • transmitting the link state information to the IAB donor entity part includes: when determining that the link state is restored, transmitting link recovery instruction information to the IAB donor entity part, wherein the link recovery instruction information It includes at least one of the following: a link recovery indication, a link measurement status report, a link identifier, a DU identifier, and a current load report.
  • transmitting the link state information to the IAB donor entity part includes transmitting the link failure or link blocking information to the IAB donor entity part when it is determined that the link state fails or is blocked, where the link
  • the failure or link blocking information includes at least one of the following: link failure indication; link blocking indication; channel status report; link identification; DU identification; current load report; link failure cause indication;
  • the reasons for link failure include one of the following: poor link status; congestion caused by link congestion.
  • an information transmission method including:
  • Step 1 The distributed unit DU receives the information partially transmitted by the integrated access backhaul host IAB donor entity, where the information is used to instruct the distributed unit to perform link switching;
  • Step 2 The distributed unit transmits UE context response information to the IAB donor entity part.
  • the DU performs link state switching in time according to the received information, which increases the flexibility of switching the link, avoids long interruption delays, and solves the complex link switching process in the IAB network in the related technology, which leads to the link The problem is prolonged when interrupted.
  • the UE context response information includes at least one of: an activated signaling bearer identifier; an activated data bearer identifier; an activated separate bearer identifier; an activated cell group identifier; an activated cell frequency point indication; an activated Path identifier, where the path identifier includes an uplink GTP tunnel identifier or a UE F1AP identifier or a gNB-DU identifier.
  • an information transmission method is also provided, and the method includes the following steps:
  • Step 1 The distributed unit DU determines that the link with the terminal is not activated, and the DU allocates resources to the terminal:
  • Step 2 The distributed unit DU receives a control message sent by the terminal.
  • the DU allocates resources to the terminal, and the terminal can use the allocated resources for data transmission, avoiding long interruptions and delays, and solving the IAB network in the related technology.
  • the problem is that the path switching process is complicated and the link is prolonged when the link is interrupted.
  • allocating resources to the terminal by the DU includes one of the following: allocating scheduling request SR information to the terminal, for the terminal to report a link activation request or for the terminal to report a resource request;
  • the terminal allocates semi-persistent scheduling SPS resources for the terminal to report link failure indication information.
  • the method includes at least one of the following: the link failure indication information includes at least one of the following: an identification of a DU in which a link failure has occurred, channel measurement report information; and the link activation request includes at least one of the following: 1: Identification of the two ends of the link for which activation is requested.
  • the receiving a control message sent by the terminal by the distributed unit DU includes: receiving, by the DU, a link activation request or link failure indication information sent by the terminal. It can be forwarded to the IAB entity by F1AP.
  • the DU After the DU receives the control message sent by the terminal, the DU carries the link failure indication information in an RRC container and forwards the RRC container to the IAB donor entity part through F1AP.
  • an information transmission method including:
  • Step 1 The integrated access backhaul host IAB donor entity partially transmits the UE context request to the distributed unit DU;
  • Step 2 receiving a UE context response message sent by the DU; wherein the UE context request includes at least one of the following information: frequency point information; resource configuration information; wherein the UE context request includes: a UE context establishment request or a UE context An adjustment request; the UE context response message includes a UE context establishment response or a UE context adjustment response.
  • the IAB donor entity and the DU perform information transmission in a timely manner to determine the UE context information, which ensures the smoothness of the link used by the UE and avoids long-term interruption delays.
  • the mechanism in related technologies can only re-establish the process by switching or rebuilding processes, but the interruption delay caused by this is very long and may cause Cannot meet the latency requirements of the service business.
  • UE Context Setup Request message which includes at least one of the following:
  • Established but inactive path identifiers including uplink GTP tunnel identifiers or UE F1AP identifiers or gNB-DU identifiers;
  • the above RRCConnectionReconfiguration message includes at least one of the following: a group group identifier that is established but not activated; a path identifier that is established but not activated, including an uplink GTP tunnel identifier or a UE F1AP identifier or a gNB-DU identifier; and a signaling bearer that is established but not activated Identification; established but inactive data bearer identification; established separate bearer identification.
  • the donor-CU sends a UE Context Modification Request message to DU2, including the generated RRCConnectionReconfiguration message configured for the UE, where the UE Context Modification Request message includes at least one of the following : Signaling bearer identifier for activation request; Data bearer identifier for activation request; Path identifier for activation request including uplink GTP tunnel identifier or UE F1AP identifier or gNB-DU identifier; Cell group identifier for activation request; Cell frequency point for activation request Indication; newly established signaling bearer identifier; newly established data bearer identifier.
  • the above RRCConnectionReconfiguration message includes at least one of the following: an activated signaling bearer identifier; an activated data bearer identifier; an activated path identifier including an uplink GTP tunnel identifier or a UE F1AP identifier or a gNB-DU identifier; an activated cell group identifier; an activation Indication of the frequency of the cell; newly established signaling bearer identifier; newly established data bearer identifier.
  • the distributed unit DU sends link restoration instruction information to the centralized unit CU;
  • the link restoration instruction information includes: link restoration instruction; link measurement status report; link identification; DU identification; And the current load report.
  • the DU When the link fails or is blocked, the DU sends link failure or link blocking information to the CU; among them, the link failure or link blocking information includes: link failure indication; link blocking indication; channel status report; link Identification; DU identification; and current load report.
  • DU2 has allocated resources for the IAB to send an indication that the link has failed, including the following two methods:
  • Method 1 Allocate physical layer resources and indicate the link activation request through 1bit information.
  • Method 2 Pre-allocated Semi-Persistent Scheduling (SPS) resources are used for reporting link failure indication information.
  • the information includes at least: a DUid where a link failure occurs, and channel measurement report information.
  • the IAB when the IAB detects a link failure, it reports link failure information or link activation request information to DU2, and DU2 sends a link activation request to the CU through F1AP, or sends a failure indication information to the CU through F1AP.
  • the link activation request includes at least the IDs at both ends of the link for which activation is requested, including a UE F1AP identifier or a gNB-DU identifier.
  • DU2 can also receive the link failure indication information into the RRC container and send it to the CU through F1AP. The subsequent CU decides which link to activate.
  • the IAB donor needs to coordinate resources, including two ways:
  • Method 1 The IAB donor sends frequency point information to the serving DU of the UE, so that the UE can simultaneously communicate with multiple serving DUs at different frequency points;
  • Method 2 The IAB donor sends resource configuration information to the DU, which is then forwarded to the UE, so that the UE can simultaneously communicate with multiple serving DUs on different resource pools.
  • the integrated access backhaul host IAB donor entity partially transmits the UE context request to the distributed unit DU;
  • the DU sends a UE context response message to the integrated access backhaul host IAB donor entity.
  • the UE context request includes at least one of the following information:
  • the UE context request includes a UE context establishment request or a UE context adjustment request; the UE context response includes a UE context establishment response or a UE context adjustment response.
  • FIG. 5 is a schematic diagram of a specific embodiment 1 of this application document.
  • the UE is connected to M-DU1 and reports the measurement result to the donor CU.
  • the donor CU selects an auxiliary DU for the UE based on the measurement report. (S-DU).
  • Step 1 After the S-Du is selected based on the measurement report, the donor CU sends a UE context establishment request message UE Context Setup Request message to the S-DU for generating UE context information.
  • the UE Context Setup Request message includes at least one of the following: a cell group identifier established but not activated; a path identifier established but not activated, including an uplink GTP tunnel identifier or a DU identifier; and a signaling bearer identifier established but not activated; Established but inactive data bearer ID; established separate bearer ID.
  • the RRCConnectionReconfiguration message includes at least one of the following: the cell group identity established but not activated; the path identity established but not activated, including the uplink GTP tunnel identity or the DU identity; the signaling bearer identity established but not activated; the data established but not activated Bearer ID; a separate bearer ID established.
  • Step 2 The S-DU sends a UE context establishment response message UE Context Setup Response message to the donor-CU.
  • Step 3 The donor-CU sends a UE Context Modification Request message to the M-DU (Master DU), including an RRCConnectionReconfiguration message generated for the UE.
  • M-DU Master DU
  • the UE Context Modification Request message includes at least one of the following: a cell group identifier that is established but not activated; a path identifier that is established but not activated, including an uplink GTP tunnel identifier or a DU identifier or an F1AP identifier; and a signaling that is established but not activated Bearer identifier; a data bearer identifier that is established but not activated;
  • the above-mentioned RRCConnectionReconfiguration message includes at least one of the following: an established but inactive cell group identity; an established but inactive path identity, including an uplink GTP tunnel identity or a DU identity; an established but inactive signaling bearer identity; an established but inactive Data bearer identifier.
  • Step 4 The M-DU forwards the received RRCConnectionReconfiguration message to the UE.
  • Step 5 The M-DU returns a UE context adjustment response message UE Context Modification Response Message to the gNB-CU.
  • Step 6 The target S-DU performs a random access procedure to generate an RRCConnectionReconfigurationComplete message.
  • Step 7 The target S-DU sends uplink RRC forwarding information to the donor CU, and the RRC forwarding information is used to transmit an RRCConnectionReconfigurationComplete message.
  • FIG. 6 is a schematic diagram of a link conversion process according to a specific embodiment 2 of the present application. As shown in FIG. 6, it includes the following steps:
  • Step 1 DU1 sends link failure or link blocking information to the CU.
  • the link failure or link blocking information includes: link failure indication; link blocking indication; channel status report; link identification; DU identification; and Current load report.
  • Step 2 The CU judges and decides to activate the link between DU2 and IAB;
  • Step 3 The donor-CU sends a UE context adjustment request message to DU2, which includes an RRCConnectionReconfiguration message generated for the UE;
  • the UE Context Modification Request message includes at least one of the following: an activated signaling bearer identifier; an activated data bearer identifier; an activated path identifier, including an uplink GTP tunnel identifier or a DU identifier; an activated cell group identifier; a newly established Signaling bearer identifier; newly established data bearer identifier;
  • the above RRCConnectionReconfiguration message includes at least one of the following: an activated signaling bearer identifier; an activated data bearer identifier; an activated path identifier, including an uplink GTP tunnel identifier or a DU identifier; an activated cell group identifier; a newly established signaling bearer identifier ; The newly established data bearer identification;
  • Step 4 DU2 sends an RRC connection reconfiguration message to the IAB;
  • Step 5 DU2 sends a UE context adjustment response to the CU.
  • Step 6 The donor-CU sends a UE context adjustment request message UE Context Modification Request message to DU1, which includes the RRCConnectionReconfiguration message generated for the UE;
  • the UE Context Modification Request message includes at least one of the following: a deactivated signaling bearer identifier; a deactivated data bearer identifier; a deactivated path identifier, including an uplink GTP tunnel identifier or a DU identifier; a deactivated cell group identifier ; Released signaling bearer identifier; released data bearer identifier;
  • the RRCConnectionReconfiguration message includes at least one of the following: deactivated signaling bearer identifier; deactivated data bearer identifier; deactivated path identifier, including uplink GTP tunnel identifier or DU identifier; deactivated cell group identifier; released signaling bearer Identification; released data bearer identification.
  • Step 7 DU2 sends a UE context adjustment response to the CU.
  • Step 8 The IAB sends a connection reconfiguration complete message to DU2.
  • Step 9 DU2 forwards the connection establishment reconfiguration complete message to the CU through the F1 interface.
  • FIG. 7 is a schematic diagram of a specific embodiment 3 according to the application document, as shown in FIG. 7, including the following steps:
  • Step 1 DU1 sends link recovery indication information to the CU; the link recovery indication information includes: link recovery indication; link measurement status report; link identification; DU identification; and current load report.
  • Step 2 The CU judges and decides to activate the link between DU1 and IAB;
  • Step 3 The donor-CU sends a UE context adjustment request message to DU1, which includes the RRCConnectionReconfiguration message generated for the UE.
  • the UE Context Modification Request message includes at least one of the following: an activated signaling bearer identifier; an activated data bearer identifier; an activated path identifier, including an uplink GTP tunnel identifier or a DU identifier; an activated cell group identifier; a newly established Signaling bearer identifier; newly established data bearer identifier;
  • the RRCConnectionReconfiguration message includes at least one of the following: an activated signaling bearer identifier; an activated data bearer identifier; an activated path identifier, including an uplink GTP tunnel identifier or a DU identifier; an activated cell group identifier; a newly established signaling bearer identifier; a new Established data bearer identifier;
  • Step 4 DU2 sends an RRC connection reconfiguration message to the IAB
  • Step 5 DU2 sends a UE context adjustment response to the CU.
  • Step 6 the donor-CU sends a UE context adjustment request message to DU1, which includes an RRCConnectionReconfiguration message generated for the UE;
  • the UE Context Modification Request message includes at least one of the following: a deactivated signaling bearer identifier; a deactivated data bearer identifier; a deactivated path identifier, including an uplink GTP tunnel identifier or a DU identifier; a deactivated cell group identifier ; Released signaling bearer identifier; released data bearer identifier;
  • the RRCConnectionReconfiguration message includes at least one of the following: deactivated signaling bearer identifier; deactivated data bearer identifier; deactivated path identifier, including uplink GTP tunnel identifier or DU identifier; deactivated cell group identifier; released signaling bearer Identification; released data bearer identification;
  • Step 7 DU2 sends a UE context adjustment response to the CU.
  • Step 8 The IAB sends a connection reconfiguration complete message to DU2.
  • Step 9 DU2 forwards the connection establishment reconfiguration complete message to the CU through the F1 interface.
  • the difference between this embodiment and the above specific embodiment 2 is that the link status is detected by the IAB.
  • the IAB detects a link failure, it reports it to the CU through the inactive link DU2.
  • DU2 has allocated resources for IAB to send a link failure indication, including the following two methods:
  • Method 1 Allocate a scheduling request SR resource to indicate a link activation request.
  • Manner 2 SPS resources are pre-allocated and used to report indication information indicating link failure.
  • the information includes at least: the ID of the link failure and the channel measurement report information.
  • the IAB when the IAB detects a link failure, it reports link failure information or link activation request information to DU2, and DU2 sends a link activation request to the CU through F1AP, or sends a failure indication information to the CU through F1AP.
  • the link activation request includes at least the ids of both ends of the link for which activation is requested, including the UE F1AP identifier or the gNB-DU identifier.
  • DU2 can also receive the link failure indication information into the RRC container and send it to the CU through F1AP. The subsequent CU decides which link to activate.
  • the donor CU can determine whether to activate the link and determine which link should be deactivated. In addition, if the DU requested for activation cannot currently serve the IAB, it can report activation failure. If activation fails, there are other links available, and the donor CU can continue to request activation of other links.
  • the donor entity unit determines that a link switchover is required based on the measurement report reported by the IAB, the following steps are performed:
  • Step 1 The terminal reports a measurement report
  • step 2 the donor entity unit determines to reactivate the DU for the terminal according to the measurement report, and performs link switching or migration.
  • Step 3 The donor entity unit sends a UE context adjustment request to the target DU.
  • the UE context adjustment request information includes one of the following: link migration indication or link switching indication; activation request indication; activated DU identity; activated UE F1AP identity; activated cell group identity; configured bearer configuration indication information; migration The identity of the target DU or handover; the identity of the target UE or F1AP for migration or handover; the identity of the target cell group for migration or handover.
  • Step 4 The target activation DU sends UE context adjustment response information to the donor entity unit.
  • the UE context adjustment response information includes one of the following: activated DU identity; activated UE F1AP identity; successfully activated cell group identity; successfully configured bearer information; failed configuration bearer information; migration or handover successful DU identity; migration Or the UE's F1AP identity for a successful handover; the target cell group identity for a successful migration or handover;
  • Step 5 The donor entity unit sends a context adjustment request message to the source DU, including: a link migration indication or a link switching indication; a deactivation indication; a deactivated DU identity; a deactivated UE F1AP identity; a deactivated cell group identity ; Activated target DU identity; activated UE F1AP identity; activated cell group identity; configured bearer configuration indication information; target DU identity for migration or handover; target UE F1AP identity for migration or handover; target cell group identity for migration or handover ; RRC connection reconfiguration message.
  • a context adjustment request message including: a link migration indication or a link switching indication; a deactivation indication; a deactivated DU identity; a deactivated UE F1AP identity; a deactivated cell group identity ; Activated target DU identity; activated UE F1AP identity; activated cell group identity; configured bearer configuration indication information; target DU identity for migration or handover; target UE F1AP identity for migration or hand
  • Step 6 The source DU sends a UE context adjustment response message, including: a deactivated DU identity; a deactivated UE F1AP identity; a deactivated cell group identity;
  • Step 7 The source DU sends an RRC reconfiguration message to the IAB, including: a link migration indication or a link switching indication; a deactivated DU identity; a deactivated UE F1AP identity; a deactivated cell group identity; an activated target DU identity; Active UE F1AP identification; activated cell group identification; configured bearer configuration indication information; target DU identification for migration or handover; target UE F1AP identification for migration or handover; target cell group identity for migration or handover;
  • Step 8 The IAB sends an RRC reconfiguration complete message to the target DU.
  • Step 9 The target DU sends an RRC reconfiguration complete message to the donor entity unit.
  • module may implement a combination of software and / or hardware for a predetermined function.
  • devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and conceived.
  • an information transmission device including:
  • the first transmission module is configured to transmit information to the distributed unit DU, where the information is used to instruct the distributed unit DU to perform link state transition.
  • the IAB donor entity partially transmits information to the DU, and this information is used to instruct the DU to switch the link state.
  • the DU performs the link state switch in time according to the received information, increasing the flexibility of switching the link. This avoids long interruption delays, and solves the problem that the link switching process in the IAB network in the related technology is complicated and the link is prolonged when the link is interrupted.
  • the information is first information, and the first information includes at least one of: an identifier of a cell group requesting activation; an indication of a frequency point of the cell requesting activation; a path identifier requesting activation, wherein the path identifier Including uplink GTP tunnel identifier or UE F1AP identifier or gNB-DU identifier; signaling bearer identifier for request activation; data bearer identifier for request activation; separate bearer identifier for request activation; resource configuration information list; reconfiguration message RRCConnectionReconfiguration;
  • the resource configuration information list includes resource configuration information of multiple DU nodes, and the resource configuration information includes at least one of the following: time resource indication, frequency domain resource indication, frequency point indication, beam direction or index indication, and bandwidth portion BWP instructions.
  • the RRCConnectionReconfiguration includes at least one of: an activated cell group identifier; an activated cell frequency point indication; an activated path identifier, wherein the path identifier includes an uplink GTP tunnel identifier or a UE F1AP identifier or a gNB-DU Identification; activated signaling bearer identification; activated data bearer identification; activated separated bearer identification;
  • the resource configuration information list includes resource configuration information of multiple DU nodes.
  • the resource configuration information includes at least one of the following: time resource indication, frequency domain resource indication, frequency point indication, beam direction or index indication, and bandwidth portion. BWP instructions.
  • the terminal context adjustment request information carries the information, that is, UE Context Modification Request Message.
  • the information is second information, and the second information includes at least one of: a deactivated cell group identifier; a deactivated cell frequency point indication; a deactivated path identifier, wherein the path identifier Including uplink GTP tunnel identity or UE F1AP identity or gNB-DU identity; deactivated signaling bearer identity; deactivated data bearer identity; deactivated separate bearer identity; reconfiguration message RRCConnectionReconfiguration.
  • the RRCConnectionReconfiguration includes at least one of: a deactivated cell group identifier; a deactivated cell frequency point indication; and a deactivated path identifier, wherein the path identifier includes an uplink GTP tunnel identifier or a UE F1AP identifier or gNB-DU identity; deactivated signaling bearer identity; deactivated data bearer identity; deactivated separate bearer identity.
  • the RRCConnectionReconfiguration message is forwarded to the terminal by the DU.
  • an information transmission device including:
  • a second determining module configured to determine link state information of a link state with the terminal
  • a second transmission module is configured to transmit the link state information to an IAB donor entity.
  • the DU timely transmits the detected link state information to the IAB donor entity part, which facilitates the IAB donor entity part to manage the link.
  • the link state fails, it can timely issue information indicating the switchover of the link. It avoids long-term interruption delays and solves the problem that the link switching process in the IAB network in the related technology is complicated and the link is prolonged when the link is interrupted.
  • transmitting the link state information to the IAB donor entity part includes: when determining that the link state is restored, transmitting link recovery instruction information to the IAB donor entity part, wherein the link recovery instruction information It includes at least one of the following: a link recovery indication, a link measurement status report, a link identifier, a DU identifier, and a current load report.
  • transmitting the link state information to the IAB donor entity part includes transmitting the link failure or link blocking information to the IAB donor entity part when it is determined that the link state fails or is blocked, where the link
  • the failure or link blocking information includes at least one of the following: link failure indication; link blocking indication; channel status report; link identification; DU identification; current load report; link failure cause indication;
  • the reasons for link failure include one of the following: poor link status; congestion caused by link congestion.
  • an information transmission device including:
  • a third receiving module configured to receive information partially transmitted by the integrated access backhaul host IAB donor entity, where the information is used to instruct the distributed unit to perform link switching;
  • the third transmission module is configured to transmit UE context response information to the IAB donor entity part.
  • the DU performs link state switching in time according to the received information, which increases the flexibility of switching the link, avoids long interruption delays, and solves the complex link switching process in the IAB network in the related technology, which leads to the link The problem is prolonged when interrupted.
  • the UE context response information includes at least one of: an activated signaling bearer identifier; an activated data bearer identifier; an activated separate bearer identifier; an activated cell group identifier; an activated cell frequency point indication; an activated Path identifier, where the path identifier includes an uplink GTP tunnel identifier or a UE F1AP identifier or a gNB-DU identifier.
  • an information transmission device including:
  • a fourth determining module configured to determine that a link with the terminal is not activated, and allocate resources for the terminal:
  • a fourth receiving module is configured to receive a control message sent by the terminal.
  • the DU allocates resources to the terminal, and the terminal can use the allocated resources for data transmission, avoiding long interruptions and delays, and solving the IAB network in the related technology.
  • the problem is that the path switching process is complicated and the link is prolonged when the link is interrupted.
  • allocating resources to the terminal by the DU includes one of the following: allocating scheduling request SR information to the terminal, for the terminal to report a link activation request or for the terminal to report a resource request;
  • the terminal allocates semi-persistent scheduling SPS resources for the terminal to report link failure indication information.
  • the method includes at least one of the following: the link failure indication information includes at least one of the following: an identification of a DU in which a link failure has occurred, channel measurement report information; and the link activation request includes at least one of the following: 1: Identification of the two ends of the link for which activation is requested.
  • the receiving a control message sent by the terminal by the distributed unit DU includes: receiving, by the DU, a link activation request or link failure indication information sent by the terminal. It can be forwarded to the IAB entity by F1AP.
  • the DU After the DU receives the control message sent by the terminal, the DU carries the link failure indication information in an RRC container and forwards the RRC container to the IAB donor entity part through F1AP.
  • an information transmission device including:
  • a fifth transmission module configured to transmit a UE context request to the distributed unit DU;
  • a fifth receiving module configured to receive a UE context response message sent by the DU; wherein the UE context request includes at least one of the following information: frequency point information; resource configuration information; wherein the UE context request includes: a UE context establishment request or UE context adjustment request; UE context response includes: UE context establishment response or UE context adjustment response.
  • the IAB donor entity and the DU perform information transmission in a timely manner to determine the UE context information, which ensures the smoothness of the link used by the UE and avoids long-term interruption delays.
  • the above multiple modules can be implemented by software or hardware. For the latter, they can be implemented by the following methods, but not limited to the above: the above modules are all located in the same processor; or, the above multiple modules are based on Arbitrary combinations are located in different processors.
  • An embodiment of the present application further provides a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the integrated access backhaul host IAB donor entity partially transmits information to the distributed unit DU;
  • the foregoing storage medium may include: a universal serial bus flash disk (Universal Serial Bus Flash Disk (U disk)), a read-only memory (ROM, Read-Only Memory), and a random access memory (RAM, Random Access Memory), mobile hard disks, magnetic disks, or compact discs can store program code.
  • a universal serial bus flash disk Universal Serial Bus Flash Disk (U disk)
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • mobile hard disks magnetic disks
  • compact discs can store program code.
  • An embodiment of the present application further provides an electronic device including a memory and a processor.
  • the memory stores a computer program
  • the processor is configured to run the computer program to perform the steps in any one of the foregoing method embodiments.
  • the electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the processor, and the input-output device is connected to the processor.
  • the foregoing processor may be configured to execute the following steps by a computer program:
  • the integrated access backhaul host IAB donor entity partially transmits information to the distributed unit DU;

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Abstract

本申请提供了一种信息传输方法及装置,其中,该方法包括:由IAB donor实体部分传输信息至DU,该信息用于指示DU进行链路状态切换。本申请还提供一种存储介质和电子装置。

Description

信息传输方法及装置、存储介质和电子装置
本申请要求在2018年08月09日提交中国专利局、申请号为201810903722.6的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及但不限于通信领域,具体而言,涉及一种信息传输方法及装置、存储介质和电子装置。
背景技术
相关技术为了提升网络容量和覆盖,同时兼顾小区部署灵活性的需求,提出一种支持无线回程传输的中继链路用于实现密集网络的部署。把支持中继功能的节点称之为Relay Node,简称RN。RN对于接入其小区的用户设备(User Equipment,UE)提供与普通eNB类似的功能和服务,RN与UE间的无线接口称之为“接入链路”(Access Link),RN通过无线接口以类似于普通UE的方式接入一个服务于它的基站eNB,服务于RN的eNB称之为宿主基站(Donor eNB,简称DeNB)。RN与DeNB间的无线接口称之为“回传链路”(Backhaul Link)。
未来通信技术支持更大的带宽且支持更大规模的多天线或者多波束的传输,为这种回传链路和接入链路共享空口资源的中继的实现提供了便利的条件,我们称之为集成接入回程(Integrated Access Backhaul,简称为IAB)。为了进一步的提升部署的灵活性,普通的IAB不需要直接与核心网相连,只有宿主IAB(IAB donor)直接与核心网相连,因此,普通IAB将数据传输到宿主IAB才能与核心网进行通信。参见图1,图1是相关技术中的IAB链路示意图,IAB节点A通过光纤与核心网相连,为IAB donor,而IAB节点B和C不与核心网相连,为普通IAB。
为了进一步的提升部署的灵活性,参见图2,图2是相关技术中的IAB节点作为中继的链路示意图,IAB可以经过多个IAB作为中继将数据传输到达IAB donor,换句话说,IAB是分层级的,所谓IAB层级代表着该IAB传输到达IAB donor需要经过的IAB跳数。假设donor IAB的层级为0,UE接入IAB的层级为N,那么UE与核心网的传输路径是依次经过层级为1,2,..N的IAB。假设IAB与IAB之间建立连接的过程与UE和基站建立连接的过程类似,那么层级为n+1的IAB对于层级为n的IAB来说就是UE,反之,层级为n的IAB对于层级为n的IAB来说就是服务小区。如果层级为n+1的IAB通过Uu口以UE的方式接入到层级为n的IAB,称呼层级为n的IAB为层级为n+1的IAB的母 节点,而层级为n+1的IAB为层级为n的IAB的子节点。每个IAB可以选择接入一个或者多个母节点。对于分布式单元(Distributed Unit,DU)和集中式单元(Centralized Unit,CU)分离的网络架构,CU只位于IAB donor,非donor的IAB只包括终端部分功能和DU部分功能,也就是说当IAB作为终端接入到上一层IAB,而上一层IAB的DU作为下一层IAB的服务小区。
针对相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题,还没有有效的解决方案。
发明内容
本申请实施例提供了一种信息传输方法及装置、存储介质和电子装置,以至少解决相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
根据本申请的一个实施例,提供了一种信息传输方法,包括:集成接入回程宿主IAB donor实体部分传输信息至分布式单元DU,其中,所述信息用于指示所述分布式单元DU进行链路状态转换。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,包括:分布式单元DU确定与终端之间的链路状态的链路状态信息;传输所述链路状态信息至IAB donor实体部分。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,分布式单元DU接收集成接入回程宿主IAB donor实体部分传输的信息,其中,所述信息用于指示所述分布式单元进行链路切换;所述分布式单元传输UE上下文响应信息至所述IAB donor实体部分。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,包括:分布式单元DU确定与终端之间的链路未激活,所述DU为所述终端分配资源:所述分布式单元DU接收终端发送的控制消息。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,包括:集成接入回程宿主IAB donor实体部分传输UE上下文请求至分布式单元DU;接收所述DU发送的UE上下文响应消息;其中,UE上下文请求包括以下信息至少之一:频点信息;资源配置信息;其中,UE上下文请求包括:UE上下文建立请求或者UE上下文调整请求;UE上下文响应包括:UE上下文建立响应或者UE上下文调整响应。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:第一传输模块,用于传输信息至分布式单元DU,其中,所述信息用于指示分布式 单元DU进行链路状态转换。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:第二确定模块,用于确定与终端之间的链路状态的链路状态信息;第二传输模块,用于传输所述链路状态信息至IAB donor实体部分。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,第三接收模块,用于接收集成接入回程宿主IAB donor实体部分传输的信息,其中,所述信息用于指示所述分布式单元进行链路切换;第三传输模块,用于传输UE上下文响应信息至所述IAB donor实体部分。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:第四确定模块,用于确定与终端之间的链路未激活,为所述终端分配资源:第四接收模块,用于接收终端发送的控制消息。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:第五传输模块,用于传输UE上下文请求至分布式单元DU;第五接收模块,用于接收所述DU发送的UE上下文响应消息;其中,UE上下文请求包括以下信息至少之一:频点信息;资源配置信息;其中,UE上下文请求包括:UE上下文建立请求或者UE上下文调整请求;UE上下文响应包括:UE上下文建立响应或者UE上下文调整响应。
根据本申请的又一个实施例,还提供了一种存储介质,所述存储介质中存储有计算机程序,其中,所述计算机程序被设置为运行时执行上述任一项的方法实施例中。
根据本申请的又一个实施例,还提供了一种电子装置,包括存储器和处理器,所述存储器中存储有计算机程序,所述处理器被设置为运行所述计算机程序以执行上述任一项的方法。
通过本申请,由IAB donor实体部分传输信息至DU,该信息用于指示DU进行链路状态切换,采用上述方案,DU依据接收的信息及时进行链路状态切换,增加了切换链路的灵活度,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
附图说明
图1是相关技术中的IAB链路示意图;
图2是相关技术中的IAB节点作为中继的链路示意图;
图3是本申请实施例的一种信息传输方法的移动终端的硬件结构框图;
图4是根据本申请实施例的一种信息传输方法流程图;
图5是本申请文件具体实施例1的示意图;
图6是根据本申请具体实施例2的链路转换流程示意图;
图7是根据本申请文件的具体实施例3的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是,本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
实施例一
本申请实施例中提供了一种移动通信网络(包括IAB移动通信网络),该网络的网络架构可以包括IAB宿主实体部分(也称为CU),DU部分,以及终端。其中,终端包括普通的终端,还包括IAB实体的终端功能部分。在本实施例中提供了一种可运行于上述网络架构上的信息传输方法,需要说明的是,本申请实施例中提供的上述信息传输方法的运行环境并不限于上述网络架构。
本申请实施例一所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例,图3是本申请实施例的一种信息传输方法的移动终端的硬件结构框图。如图3所示,移动终端30可以包括一个或多个(图3中仅示出一个)处理器302(处理器302可以包括微处理器(Microcontroller Unit,MCU)或可编程逻辑器件(Field Programmable Gate Array,FPGA)等的处理装置)和用于存储数据的存储器304,可选地,上述移动终端还可以包括用于通信功能的传输装置306以及输入输出设备308。本领域普通技术人员可以理解,图3所示的结构仅为示意,其并不对上述移动终端的结构造成限定。例如,移动终端30还可包括比图3中所示更多或者更少的组件,或者具有与图3所示不同的配置。
存储器304可用于存储应用软件的软件程序以及模块,如本申请实施例中的信息传输方法对应的程序指令/模块,处理器302通过运行存储在存储器304内的软件程序以及模块,从而执行多种功能应用以及数据处理,即实现上述的方法。存储器304可包括高速随机存储器,还可包括非易失性存储器,如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中,存储器304可进一步包括相对于处理器302远程设置的存储器,这些远程存储器可以通过网络连接至移动终端30。上述网络的实例包括互联网、企业内部网、 局域网、移动通信网及其组合。
传输装置306用于经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终端30的通信供应商提供的无线网络。在一个实例中,传输装置306包括一个网络适配器(Network Interface Controller,NIC),其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中,传输装置306可以为射频(Radio Frequency,RF)模块,其用于通过无线方式与互联网进行通讯。
在本实施例中提供了一种信息传输方法,图4是根据本申请实施例的一种信息传输方法流程图,如图4所示,该流程包括如下步骤:
步骤S402,集成接入回程宿主IAB donor实体部分传输信息至分布式单元DU;
IAB donor实体部分包括IAB donor集中式单元CU以及IAB donor分布式单元DU。
步骤S404,其中,所述信息用于指示所述分布式单元DU进行链路状态转换。
通过上述步骤,由IAB donor实体部分传输信息至DU,该信息用于指示DU进行链路状态切换,采用上述方案,DU依据接收的信息及时进行链路状态切换,增加了切换链路的灵活度,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,上述步骤的执行主体可以为IAB donor CU等,但不限于此。
可选地,所述信息为第一信息,所述第一信息包括以下至少之一:请求激活的小区组标识;请求激活的小区频点指示;请求激活的路径标识,其中,所述路径标识包括上行通用分组无线服务隧道协议(General Packet Radio Service Tunnelling Protocol,GTP)隧道标识或者UE F1接口应用协议(F1Application Protocol,F1AP)标识或者gNB-DU标识;请求激活的信令承载标识;请求激活的数据承载标识;请求激活的分离承载标识;资源配置信息列表;重配置消息RRCConnectionReconfiguration;
其中,所述资源配置信息列表包括多个DU节点的资源配置信息,所述资源配置信息包括以下至少之一:时间资源指示,频域资源指示,频点指示,波束方向或者索引指示,带宽部分BWP指示。
可选地,所述RRCConnectionReconfiguration包括以下至少之一:激活的小区组标识;激活的小区频点指示;激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;激活的信令承载标识;激活的数据承载标识;激活的分离承载标识;
其中,资源配置信息列表包括多个DU节点的资源配置信息;所述所述资源配置信息包括以下至少之一:时间资源指示,频域资源指示,频点指示,波束方向或者索引指示,带宽部分BWP指示。
可选地,在终端上下文调整请求信息中携带所述信息,即UE Context Modification Request message。
可选地,所述信息为第二信息,所述第二信息包括以下至少之一:去激活的小区组标识;去激活的小区频点指示;去激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;去激活的信令承载标识;去激活的数据承载标识;去激活的分离承载标识;重配置消息RRCConnectionReconfiguration。
可选地,所述RRCConnectionReconfiguration包括以下至少之一:去激活的小区组标识;去激活的小区频点指示;去激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;去激活的信令承载标识;去激活的数据承载标识;去激活的分离承载标识。
可选地,所述RRCConnectionReconfiguration消息由所述DU转发至终端。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,包括以下步骤:
步骤一,分布式单元DU确定与终端之间的链路状态的链路状态信息;
步骤二,传输所述链路状态信息至IAB donor实体部分。
采用上述方案,DU及时将检测到的链路状态信息传输至IAB donor实体部分,便于IAB donor实体部分对链路进行管理,在链路状态故障时,可以及时下发指示切换链路的信息,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,传输所述链路状态信息至IAB donor实体部分,包括:在确定所述链路状态恢复时,传输链路恢复指示信息至IAB donor实体部分,其中,所述链路恢复指示信息包括以下至少之一:链路恢复指示,链路测量状态报告,链路标识,DU标识,当前负载报告。
可选地,传输所述链路状态信息至IAB donor实体部分,包括:在确定所述链路状态失败或阻塞时,传输链路失败或链路阻塞信息至IAB donor实体部分,其中,链路失败或链路阻塞信息包括以下至少之一:链路失败指示;链路阻塞指示;信道状态报告;链路标识;DU标识;当前负载报告;链路失败原因指示;
其中,链路失败原因包括以下之一:链路状态差;链路拥塞导致阻塞。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,包括:
步骤一,分布式单元DU接收集成接入回程宿主IAB donor实体部分传输的信息,其中,所述信息用于指示所述分布式单元进行链路切换;
步骤二,所述分布式单元传输UE上下文响应信息至所述IAB donor实体部分。
采用上述方案,DU依据接收的信息及时进行链路状态切换,增加了切换链路的灵活度,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,所述UE上下文响应信息包括以下至少之一:激活的信令承载标识;激活的数据承载标识;激活的分离承载标识;激活的小区组标识;激活的小区频点指示;激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,该方法包括以下步骤:
步骤一,分布式单元DU确定与终端之间的链路未激活,所述DU为所述终端分配资源:
步骤二,所述分布式单元DU接收终端发送的控制消息。
采用上述方案,在DU与终端之间链路未激活时,DU为终端分配资源,终端可以使用分配的资源进行数据传输,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,所述DU为所述终端分配资源包括以下之一:为所述终端分配调度请求SR信息,用于所述终端上报链路激活请求或者用于所述终端上报资源请求;为所述终端分配半持续性调度SPS资源,用于所述终端上报链路失败指示信息。
可选地,所述方法包括以下至少之一:所述链路失败指示信息包括以下至少之一:发生链路失败的DU的标识,信道测量报告信息;所述链路激活请求包括以下至少之一:请求激活的链路两端的标识。
可选地,所述分布式单元DU接收所述终端发送的控制消息,包括:所述DU接收所述终端发送的链路激活请求或链路失败指示信息。后续可以通过F1AP转发至所述IAB donor实体部分。
可选地,所述DU接收终端发送的控制消息之后,所述DU在RRC container中携带所述链路失败指示信息,通过F1AP转发所述RRC container至IAB donor 实体部分。
根据本申请文件的另一个实施例,还提供了一种信息传输方法,包括:
步骤一,集成接入回程宿主IAB donor实体部分传输UE上下文请求至分布式单元DU;
步骤二,接收所述DU发送的UE上下文响应消息;其中,UE上下文请求包括以下信息至少之一:频点信息;资源配置信息;其中,所述UE上下文请求包括:UE上下文建立请求或者UE上下文调整请求;所述UE上下文响应消息包括:UE上下文建立响应或者UE上下文调整响应。
采用上述方案,IAB donor实体部分与DU及时进行信息传输,来确定UE上下文信息,保证了UE使用的链路的通畅,避免了长时间的中断时延。
下面结合本申请文件的另一个实施例进行说明。
由于链路状态不佳或者拥塞等原因导致中继节点与其服务节点链路通信中断时,相关技术中的机制只能通过切换或者重建流程重新建立流程,但这样造成的中断时延非常长,可能无法满足服务业务的时延需求。
本申请文件中的方案中包括以下几部分:
1.在连接建立阶段,CU需要发送UE Context Setup Request message消息,该消息包括以下至少之一:
建立但未激活的小区组标识;
建立但未激活的路径标识,包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;
建立但未激活的信令承载标识;
建立但未激活的数据承载标识;
建立的分离的承载标识;
RRCConnectionReconfiguration。
上述的RRCConnectionReconfiguration消息包括以下至少之一:建立但未激活的小区组标识;建立但未激活的路径标识,包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;建立但未激活的信令承载标识;建立但未激活的数据承载标识;建立的分离的承载标识。
2当CU决定要激活某条链路时,The donor-CU发送UE Context Modification Request message到DU2,包括了为UE配置的生成后的RRCConnectionReconfiguration message,其中,UE Context Modification Request  message消息包括以下至少之一:请求激活的信令承载标识;请求激活的数据承载标识;请求激活的路径标识,包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;请求激活的小区组标识;请求激活的小区频点指示;新建立的信令承载标识;新建立的数据承载标识。
上述的RRCConnectionReconfiguration消息包括以下至少之一:激活的信令承载标识;激活的数据承载标识;激活的路径标识,包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;激活的小区组标识;激活的小区频点指示;新建立的信令承载标识;新建立的数据承载标识。
3当链路状态恢复时,分布式单元DU发送链路恢复指示信息给集中式单元CU;其中链路恢复指示信息包括:链路恢复指示;链路测量状态报告;链路标识;DU标识;以及当前负载报告。
4当链路失败或者阻塞时,DU发送链路失败或者链路阻塞信息给CU;其中,链路失败或者链路阻塞信息包括:链路失败指示;链路阻塞指示;信道状态报告;链路标识;DU标识;以及当前负载报告。
5IAB终端功能部分与DU2之间的链路尽管没有激活,但DU2已经为IAB分配了发送指示链路失败的的资源,包括以下两种方式:
方式1:分配物理层资源,通过1bit信息指示链路激活请求。
方式2:预分配半持续性调度(Semi Persistent Scheduling,简称为SPS)资源,用于上报指示链路失败指示信息,所述信息至少包括:发生链路失败的DU id,信道测量报告信息。
因此,当IAB检测到链路失败后,将链路失败信息或者链路激活请求信息上报给DU2,DU2通过F1AP发送链路激活请求给CU,或者通过F1AP发送失败指示信息给CU。
其中,链路激活请求至少包括:请求激活的链路两端的ID,包括UE F1AP标识或者gNB-DU标识。
对于方式2,DU2还可以接收到的链路失败指示信息打包到RRC container里面,通过F1AP发送给CU,后续CU来决定激活哪条链路。
6如果有多条链路同时激活,或者说UE连接的多条链路都同时工作的情况下,IAB donor需要进行资源协调,包括两种方式:
方式1:IAB donor发送频点信息给UE的服务DU,可以让UE在不同的频点分别与多个服务DU同时通信;
方式2:IAB donor发送资源配置信息给DU,DU再转发给UE,让UE在 不同的资源池上分别于多个服务DU同时通信。
因此,集成接入回程宿主IAB donor实体部分传输UE上下文请求至分布式单元DU;
DU发送UE上下文响应消息给集成接入回程宿主IAB donor实体。
其中,UE上下文请求包括以下信息至少之一:
频点信息;
资源配置信息。
其中,UE上下文请求包括:UE上下文建立请求或者UE上下文调整请求;UE上下文响应包括:UE上下文建立响应或者UE上下文调整响应。
下面是是本申请文件的具体实施例:
具体实施例1
图5是本申请文件具体实施例1的示意图,如图5所示,在本实施例中UE连接至M-DU1,以及上报测量结果至donor CU,donor CU基于测量报告为UE选择一个辅助DU(S-DU)。
步骤1.在基于测量报告选择S-Du之后,donor CU发送向S-DU发送UE上下文建立请求消息UE Context Setup Request message,用于生成UE上下文信息。
其中,UE Context Setup Request message消息包括以下至少之一:建立但未激活的小区组标识;建立但未激活的路径标识,包括上行GTP隧道标识或者DU标识;建立但未激活的信令承载标识;建立但未激活的数据承载标识;建立的分离的承载标识。
RRCConnectionReconfiguration消息包括以下至少之一:建立但未激活的小区组标识;建立但未激活的路径标识,包括上行GTP隧道标识或者DU标识;建立但未激活的信令承载标识;建立但未激活的数据承载标识;建立的分离的承载标识。
步骤2.The S-DU向donor-CU发送UE上下文建立响应消息UE Context Setup Response message。
步骤3.The donor-CU发送UE上下文调整请求消息UE Context Modification Request message到M-DU(主DU),其中包括为UE生成的RRCConnectionReconfiguration消息。
其中,UE Context Modification Request message消息包括以下至少之一:建 立但未激活的小区组标识;建立但未激活的路径标识,包括上行GTP隧道标识或者DU标识或者F1AP标识;建立但未激活的信令承载标识;建立但未激活的数据承载标识;
上述的RRCConnectionReconfiguration消息包括以下至少之一:建立但未激活的小区组标识;建立但未激活的路径标识,包括上行GTP隧道标识或者DU标识;建立但未激活的信令承载标识;建立但未激活的数据承载标识。
步骤4.The M-DU转发接收到RRCConnectionReconfiguration消息至UE.
步骤5.The M-DU向gNB-CU返回UE上下文调整响应消息UE Context Modification Response message。
步骤6.目标S-DU执行随机接入过程,生成RRCConnectionReconfigurationComplete message.
步骤7.The目标S-DU发送上行RRC转发信息至donor CU,该RRC转发信息用于传输RRCConnectionReconfigurationComplete消息。
具体实施例2
图6是根据本申请具体实施例2的链路转换流程示意图,如图6所示,包括以下步骤:
步骤1:DU1发送链路失败或者链路阻塞信息给CU;其中,链路失败或者链路阻塞信息包括:链路失败指示;链路阻塞指示;信道状态报告;链路标识;DU标识;以及当前负载报告。
步骤2:CU判断决定激活DU2与IAB之间的链路;
步骤3:donor-CU发送UE上下文调整请求消息至DU2,其中包括为UE生成的RRCConnectionReconfiguration messag;
其中,UE Context Modification Request message消息包括以下至少之一:激活的信令承载标识;激活的数据承载标识;激活的路径标识,包括上行GTP隧道标识或者DU标识;激活的小区组标识;新建立的信令承载标识;新建立的数据承载标识;
上述的RRCConnectionReconfiguration消息包括以下至少之一:激活的信令承载标识;激活的数据承载标识;激活的路径标识,包括上行GTP隧道标识或者DU标识;激活的小区组标识;新建立的信令承载标识;新建立的数据承载标识;
步骤4:DU2发送RRC连接重配消息给IAB;
步骤5:DU2发送UE上下文调整响应给CU。
以下步骤6和步骤7为可选步骤:
步骤6:donor-CU发送UE上下文调整请求消息UE Context Modification Request message给DU1,其中包括为UE生成的RRCConnectionReconfiguration message;
其中,UE Context Modification Request message消息包括以下至少之一:去激活的信令承载标识;去激活的数据承载标识;去激活的路径标识,包括上行GTP隧道标识或者DU标识;去激活的小区组标识;释放的信令承载标识;释放的数据承载标识;
RRCConnectionReconfiguration消息包括以下至少之一:去激活的信令承载标识;去激活的数据承载标识;去激活的路径标识,包括上行GTP隧道标识或者DU标识;去激活的小区组标识;释放的信令承载标识;释放的数据承载标识。
步骤7:DU2发送UE上下文调整响应给CU。
步骤8:IAB发送连接重配完成消息给DU2。
步骤9:DU2将连接建立重配完成消息通过F1接口转发给CU。
具体实施例3
图7是根据本申请文件的具体实施例3的示意图,如图7所示,包括以下步骤:
步骤1:DU1发送链路恢复指示信息给CU;其中链路恢复指示信息包括:链路恢复指示;链路测量状态报告;链路标识;DU标识;以及当前负载报告。
步骤2:CU判断决定激活DU1与IAB之间的链路;
步骤3:donor-CU发送UE上下文调整请求消息给DU1,其中包括为UE生成的RRCConnectionReconfiguration message
其中,UE Context Modification Request message消息包括以下至少之一:激活的信令承载标识;激活的数据承载标识;激活的路径标识,包括上行GTP隧道标识或者DU标识;激活的小区组标识;新建立的信令承载标识;新建立的数据承载标识;
RRCConnectionReconfiguration消息包括以下至少之一:激活的信令承载标识;激活的数据承载标识;激活的路径标识,包括上行GTP隧道标识或者DU标识;激活的小区组标识;新建立的信令承载标识;新建立的数据承载标识;
步骤4:DU2发送RRC连接重配消息给IAB
步骤5:DU2发送UE上下文调整响应给CU。
以下步骤6和步骤7为可选步骤:
步骤6:donor-CU发送UE上下文调整请求消息给DU1,其中包括为UE生成的RRCConnectionReconfiguration message;
其中,UE Context Modification Request message消息包括以下至少之一:去激活的信令承载标识;去激活的数据承载标识;去激活的路径标识,包括上行GTP隧道标识或者DU标识;去激活的小区组标识;释放的信令承载标识;释放的数据承载标识;
RRCConnectionReconfiguration消息包括以下至少之一:去激活的信令承载标识;去激活的数据承载标识;去激活的路径标识,包括上行GTP隧道标识或者DU标识;去激活的小区组标识;释放的信令承载标识;释放的数据承载标识;
步骤7:DU2发送UE上下文调整响应给CU。
步骤8:IAB发送连接重配完成消息给DU2。
步骤9:DU2将连接建立重配完成消息通过F1接口转发给CU。
具体实施例4
本实施例与上述具体实施例2的区别在于,链路状态由IAB进行检测,当IAB检测到链路失败后,通过未激活的链路DU2上报给CU。
其中,IAB与DU2之间的链路尽管没有激活,但DU2已经为IAB分配了发送指示链路失败的的资源,包括以下两种方式:
方式1:分配调度请求SR资源,指示链路激活请求。
方式2:预分配SPS资源,用于上报指示链路失败指示信息,所述信息至少包括:发生链路失败的DU id,信道测量报告信息。
因此,当IAB检测到链路失败后,将链路失败信息或者链路激活请求信息上报给DU2,DU2通过F1AP发送链路激活请求给CU,或者通过F1AP发送失败指示信息给CU。
其中,链路激活请求至少包括:请求激活的链路两端的id,包括UE F1AP标识或者gNB-DU标识。
对于方式2,DU2还可以接收到的链路失败指示信息打包到RRC container里面,通过F1AP发送给CU,后续CU来决定激活哪条链路。
donor CU根据该指示可以判断出是否激活该链路,同时判断出应该去激活 哪条链路。另外,如果被请求激活的DU当前无法服务于IAB,则可以反馈激活失败。如果激活失败,还存在其他可用链路,donor CU可用继续请求激活其他链路。
Note:当IAB的某条链路激活后,可以默认的认为其他链路去激活。或者由donor CU发送去激活信息。
具体实施例5
假设终端连接了两个或者多个DU,且其中一个或者多个DU处于激活状态,而其他一些DU处于去激活状态。当donor实体单元根据IAB上报的测量报告判断出需要进行链路切换时,执行以下步骤:
步骤1,终端上报测量报告;
步骤2,donor实体单元根据测量报告确定为终端重新选择激活DU,执行链路切换或者迁移。
步骤3:donor实体单元发送UE上下文调整请求给目标DU;
其中UE上下文调整请求信息包括以下之一:链路迁移指示或者链路切换指示;激活请求指示;激活的DU标识;激活的UE F1AP标识;激活的小区组标识;配置的承载配置指示信息;迁移或切换的目标DU标识;迁移或切换的目标UE F1AP标识;迁移或切换的目标小区组标识。
在本申请文件中激活或者迁移或者切换实现的功能可以是一样的,只是不同的表述方式。
步骤4:目标激活DU向donor实体单元发送UE上下文调整响应信息;
其中UE上下文调整响应信息包括以下之一:激活的DU标识;激活的UE F1AP标识;激活成功的小区组标识;配置成功的承载信息;配置失败的承载信息;迁移或切换成功的DU标识;迁移或切换成功的UE F1AP标识;迁移或切换成功的目标小区组标识;
步骤5:donor实体单元向源DU发送上下文调整请求消息,包括:链路迁移指示或者链路切换指示;去激活指示;去激活的DU标识;去激活的UE F1AP标识;去激活的小区组标识;激活目标DU标识;激活的UE F1AP标识;激活的小区组标识;配置的承载配置指示信息;迁移或切换的目标DU标识;迁移或切换的目标UE F1AP标识;迁移或切换的目标小区组标识;RRC连接重配消息。
步骤6:源DU发送UE上下文调整响应消息,包括:去激活的DU标识;去激活的UE F1AP标识;去激活的小区组标识;
步骤7:源DU向IAB发送RRC重配消息,包括:链路迁移指示或者链路切换指示;去激活的DU标识;去激活的UE F1AP标识;去激活的小区组标识;激活目标DU标识;激活的UE F1AP标识;激活的小区组标识;配置的承载配置指示信息;迁移或切换的目标DU标识;迁移或切换的目标UE F1AP标识;迁移或切换的目标小区组标识;
步骤8:IAB向目标DU发送RRC重配完成消息。
步骤9:目标DU将RRC重配完成消息发给donor实体单元。
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根据上述实施例的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实现。基于这样的理解,本申请的技术方案本质上或者说对相关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设备(可以是手机,计算机,服务器,或者网络设备等)执行本申请多个实施例所述的方法。
实施例二
在本实施例中还提供了一种信息传输装置,该装置用于实现上述实施例及实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:
第一传输模块,用于传输信息至分布式单元DU,其中,所述信息用于指示分布式单元DU进行链路状态转换。
通过上述步骤,由IAB donor实体部分传输信息至DU,该信息用于指示DU进行链路状态切换,采用上述方案,DU依据接收的信息及时进行链路状态切换,增加了切换链路的灵活度,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,所述信息为第一信息,所述第一信息包括以下至少之一:请求激活的小区组标识;请求激活的小区频点指示;请求激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;请求激活的信令承载标识;请求激活的数据承载标识;请求激活的分离承载标识;资源配置信息列表;重配置消息RRCConnectionReconfiguration;
其中,所述资源配置信息列表包括多个DU节点的资源配置信息,所述资源配置信息包括以下至少之一:时间资源指示,频域资源指示,频点指示,波 束方向或者索引指示,带宽部分BWP指示。
可选地,所述RRCConnectionReconfiguration包括以下至少之一:激活的小区组标识;激活的小区频点指示;激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;激活的信令承载标识;激活的数据承载标识;激活的分离承载标识;
其中,资源配置信息列表包括多个DU节点的资源配置信息;所述所述资源配置信息包括以下至少之一:时间资源指示,频域资源指示,频点指示,波束方向或者索引指示,带宽部分BWP指示。
可选地,在终端上下文调整请求信息中携带所述信息,即UE Context Modification Request message。
可选地,所述信息为第二信息,所述第二信息包括以下至少之一:去激活的小区组标识;去激活的小区频点指示;去激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;去激活的信令承载标识;去激活的数据承载标识;去激活的分离承载标识;重配置消息RRCConnectionReconfiguration。
可选地,所述RRCConnectionReconfiguration包括以下至少之一:去激活的小区组标识;去激活的小区频点指示;去激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;去激活的信令承载标识;去激活的数据承载标识;去激活的分离承载标识。
可选地,所述RRCConnectionReconfiguration消息由所述DU转发至终端。
根据本申请文件的另一个实施例,提供了一种信息传输装置,包括:
第二确定模块,用于确定与终端之间的链路状态的链路状态信息;
第二传输模块,用于传输所述链路状态信息至IAB donor实体部分。
采用上述方案,DU及时将检测到的链路状态信息传输至IAB donor实体部分,便于IAB donor实体部分对链路进行管理,在链路状态故障时,可以及时下发指示切换链路的信息,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,传输所述链路状态信息至IAB donor实体部分,包括:在确定所述链路状态恢复时,传输链路恢复指示信息至IAB donor实体部分,其中,所述链路恢复指示信息包括以下至少之一:链路恢复指示,链路测量状态报告,链路标识,DU标识,当前负载报告。
可选地,传输所述链路状态信息至IAB donor实体部分,包括:在确定所述 链路状态失败或阻塞时,传输链路失败或链路阻塞信息至IAB donor实体部分,其中,链路失败或链路阻塞信息包括以下至少之一:链路失败指示;链路阻塞指示;信道状态报告;链路标识;DU标识;当前负载报告;链路失败原因指示;
其中链路失败原因包括以下之一:链路状态差;链路拥塞导致阻塞。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:
第三接收模块,用于接收集成接入回程宿主IAB donor实体部分传输的信息,其中,所述信息用于指示所述分布式单元进行链路切换;
第三传输模块,用于传输UE上下文响应信息至所述IAB donor实体部分。
采用上述方案,DU依据接收的信息及时进行链路状态切换,增加了切换链路的灵活度,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,所述UE上下文响应信息包括以下至少之一:激活的信令承载标识;激活的数据承载标识;激活的分离承载标识;激活的小区组标识;激活的小区频点指示;激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:
第四确定模块,用于确定与终端之间的链路未激活,为所述终端分配资源:
第四接收模块,用于接收终端发送的控制消息。
采用上述方案,在DU与终端之间链路未激活时,DU为终端分配资源,终端可以使用分配的资源进行数据传输,避免了长时间的中断时延,解决了相关技术中IAB网络中链路切换流程复杂导致链路中断时延长的问题。
可选地,所述DU为所述终端分配资源包括以下之一:为所述终端分配调度请求SR信息,用于所述终端上报链路激活请求或者用于所述终端上报资源请求;为所述终端分配半持续性调度SPS资源,用于所述终端上报链路失败指示信息。
可选地,所述方法包括以下至少之一:所述链路失败指示信息包括以下至少之一:发生链路失败的DU的标识,信道测量报告信息;所述链路激活请求包括以下至少之一:请求激活的链路两端的标识。
可选地,所述分布式单元DU接收所述终端发送的控制消息,包括:所述DU接收所述终端发送的链路激活请求或链路失败指示信息。后续可以通过F1AP转发至所述IAB donor实体部分。
可选地,所述DU接收终端发送的控制消息之后,所述DU在RRC container 中携带所述链路失败指示信息,通过F1AP转发所述RRC container至IAB donor实体部分。
根据本申请文件的另一个实施例,还提供了一种信息传输装置,包括:
第五传输模块,用于传输UE上下文请求至分布式单元DU;
第五接收模块,用于接收所述DU发送的UE上下文响应消息;其中,UE上下文请求包括以下信息至少之一:频点信息;资源配置信息;其中,UE上下文请求包括:UE上下文建立请求或者UE上下文调整请求;UE上下文响应包括:UE上下文建立响应或者UE上下文调整响应。
采用上述方案,IAB donor实体部分与DU及时进行信息传输,来确定UE上下文信息,保证了UE使用的链路的通畅,避免了长时间的中断时延。
需要说明的是,上述多个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:上述模块均位于同一处理器中;或者,上述多个模块以任意组合的形式分别位于不同的处理器中。
实施例三
本申请的实施例还提供了一种存储介质。可选地,在本实施例中,上述存储介质可以被设置为存储用于执行以下步骤的程序代码:
S1,集成接入回程宿主IAB donor实体部分传输信息至分布式单元DU;
S2,其中,所述信息用于指示所述分布式单元DU进行链路状态转换。
可选地,在本实施例中,上述存储介质可以包括:通用串行总线闪存盘(Universal Serial Bus Flash Disk,U盘)、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、移动硬盘、磁碟或者光盘等多种可以存储程序代码的介质。
本申请的实施例还提供了一种电子装置,包括存储器和处理器,该存储器中存储有计算机程序,该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
可选地,上述电子装置还可以包括传输装置以及输入输出设备,其中,该传输装置和上述处理器连接,该输入输出设备和上述处理器连接。
可选地,在本实施例中,上述处理器可以被设置为通过计算机程序执行以下步骤:
S1,集成接入回程宿主IAB donor实体部分传输信息至分布式单元DU;
S2,其中,所述信息用于指示所述分布式单元DU进行链路状态转换。
可选地,本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例,本实施例在此不再赘述。
可选地,本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例,本实施例在此不再赘述。
显然,本领域的技术人员应该明白,上述的本申请的多个模块或多个步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成一个或多个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本申请不限制于特定的硬件和软件结合。

Claims (25)

  1. 一种信息传输方法,包括:
    集成接入回程宿主IAB donor实体部分传输信息至分布式单元DU,其中,所述信息用于指示所述DU进行链路状态转换。
  2. 根据权利要求1所述的方法,其中,所述信息为第一信息,所述第一信息包括以下至少之一:
    请求激活的小区组标识;
    请求激活的小区频点指示;
    请求激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UEF1AP标识或者gNB-DU标识;
    请求激活的信令承载标识;
    请求激活的数据承载标识;
    请求激活的分离承载标识;
    资源配置信息列表;
    重配置消息RRCConnectionReconfiguration;
    其中,所述资源配置信息列表包括多个DU节点的资源配置信息,所述资源配置信息包括以下至少之一:时间资源指示,频域资源指示,频点指示,波束方向或者索引指示,带宽部分BWP指示。
  3. 根据权利要求2所述的方法,其中,所述RRCConnectionReconfiguration包括以下至少之一:
    激活的小区组标识;
    激活的小区频点指示;
    激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识;
    激活的信令承载标识;
    激活的数据承载标识;
    激活的分离承载标识;
    其中,资源配置信息列表包括多个DU节点的资源配置信息;所述所述资源配置信息包括以下至少之一:时间资源指示,频域资源指示,频点指示,波束方向或者索引指示,带宽部分BWP指示。
  4. 根据权利要求1所述的方法,还包括:在终端上下文调整请求信息中携 带所述信息。
  5. 根据权利要求1所述的方法,其中,所述信息为第二信息,所述第二信息包括以下至少之一:
    去激活的小区组标识;
    去激活的小区频点指示;
    去激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UEF1AP标识或者gNB-DU标识;
    去激活的信令承载标识;
    去激活的数据承载标识;
    去激活的分离承载标识;
    重配置消息RRCConnectionReconfiguration。
  6. 根据权利要求5所述的方法,其中,所述RRCConnectionReconfiguration包括以下至少之一:
    去激活的小区组标识;
    去激活的小区频点指示;
    去激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UEF1AP标识或者gNB-DU标识;
    去激活的信令承载标识;
    去激活的数据承载标识;
    去激活的分离承载标识。
  7. 根据权利要求2或5所述的方法,其中,所述RRCConnectionReconfiguration由所述DU转发至终端。
  8. 一种信息传输方法,包括:
    分布式单元DU确定与终端之间的链路状态的链路状态信息;
    传输所述链路状态信息至IAB donor实体部分。
  9. 根据权利要求8所述的方法,其中,所述传输所述链路状态信息至IAB donor实体部分,包括:
    在确定所述链路状态恢复的情况下,传输链路恢复指示信息至所述IAB donor实体部分,其中,所述链路恢复指示信息包括以下至少之一:链路恢复指示,链路测量状态报告,链路标识,DU标识,当前负载报告。
  10. 根据权利要求8所述的方法,其中,所述传输所述链路状态信息至IAB donor实体部分,包括:
    在确定所述链路状态失败或阻塞的情况下,传输链路失败或链路阻塞信息至IAB donor实体部分,其中,所述链路失败或链路阻塞信息包括以下至少之一:链路失败指示;链路阻塞指示;信道状态报告;链路标识;DU标识;当前负载报告;链路失败原因指示;
    其中,所述链路失败原因包括以下之一:链路状态差;链路拥塞导致阻塞。
  11. 一种信息传输方法,包括:
    分布式单元DU接收集成接入回程宿主IAB donor实体部分传输的信息,其中,所述信息用于指示所述分布式单元进行链路切换;
    所述分布式单元传输UE上下文响应信息至所述IAB donor实体部分。
  12. 根据权利要求11所述的方法,其中,所述UE上下文响应信息包括以下至少之一:
    激活的信令承载标识;
    激活的数据承载标识;
    激活的分离承载标识;
    激活的小区组标识;
    激活的小区频点指示;
    激活的路径标识,其中,所述路径标识包括上行GTP隧道标识或者UE F1AP标识或者gNB-DU标识。
  13. 一种信息传输方法,包括:
    分布式单元DU确定与终端之间的链路未激活,所述DU为所述终端分配资源;
    所述DU接收所述终端发送的控制消息。
  14. 根据权利要求13所述的方法,其中,所述DU为所述终端分配资源包括以下之一:
    为所述终端分配调度请求SR信息,用于所述终端上报链路激活请求或者用于所述终端上报资源请求;
    为所述终端分配半持续性调度SPS资源,用于所述终端上报链路失败指示信息。
  15. 根据权利要求14所述的方法,还包括以下至少之一:
    所述链路失败指示信息包括以下至少之一:发生链路失败的DU的标识,信道测量报告信息;
    所述链路激活请求包括以下至少之一:请求激活的链路第一端的标识,请求激活的链路第二端的标识。
  16. 根据权利要求13所述的方法,其中,所述DU接收所述终端发送的控制消息,包括:
    所述DU接收所述终端发送的链路激活请求或链路失败指示信息。
  17. 根据权利要求14或16所述的方法,在所述DU接收终端发送的控制消息之后,还包括:
    所述DU在无线资源控制容器RRC container中携带所述链路失败指示信息,通过F1AP转发所述RRC container至IAB donor实体部分。
  18. 一种信息传输方法,包括:
    集成接入回程宿主IAB donor实体部分传输UE上下文请求至分布式单元DU;
    接收所述DU发送的UE上下文响应消息;
    其中,所述UE上下文请求中包括以下至少之一:频点信息;资源配置信息;
    其中,所述UE上下文请求包括:UE上下文建立请求或者UE上下文调整请求;所述UE上下文响应消息包括:UE上下文建立响应或者UE上下文调整响应。
  19. 一种信息传输装置,包括:
    传输模块,设置为传输信息至分布式单元DU,其中,所述信息用于指示所述DU进行链路状态转换。
  20. 一种信息传输装置,包括:
    确定模块,设置为确定与终端之间的链路状态的链路状态信息;
    传输模块,设置为传输所述链路状态信息至IAB donor实体部分。
  21. 一种信息传输装置,包括:
    接收模块,设置为接收集成接入回程宿主IAB donor实体部分传输的信息,其中,所述信息用于指示分布式单元进行链路切换;
    传输模块,设置为传输UE上下文响应信息至所述IAB donor实体部分。
  22. 一种信息传输装置,包括:
    确定模块,设置为确定与终端之间的链路未激活,为所述终端分配资源:
    接收模块,设置为接收所述终端发送的控制消息。
  23. 一种信息传输装置,包括:
    传输模块,设置为传输UE上下文请求至分布式单元DU;
    接收模块,设置为接收所述DU发送的UE上下文响应消息;
    其中,所述UE上下文请求中包括以下至少之一:频点信息;资源配置信息;
    其中,所述UE上下文请求包括:UE上下文建立请求或者UE上下文调整请求;UE上下文响应包括:UE上下文建立响应或者UE上下文调整响应。
  24. 一种存储介质,所述存储介质中存储有计算机程序,其中,所述计算机程序被设置为运行时执行所述权利要求1至18任一项中所述的方法。
  25. 一种电子装置,包括存储器和处理器,所述存储器中存储有计算机程序,所述处理器被设置为运行所述计算机程序以执行所述权利要求1至18任一项中所述的方法。
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