WO2019192466A1 - 中继资源的配置方法和设备 - Google Patents

中继资源的配置方法和设备 Download PDF

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Publication number
WO2019192466A1
WO2019192466A1 PCT/CN2019/080988 CN2019080988W WO2019192466A1 WO 2019192466 A1 WO2019192466 A1 WO 2019192466A1 CN 2019080988 W CN2019080988 W CN 2019080988W WO 2019192466 A1 WO2019192466 A1 WO 2019192466A1
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Prior art keywords
resource
relay
backhaul
relay device
configuration message
Prior art date
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PCT/CN2019/080988
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English (en)
French (fr)
Inventor
金巴
潘学明
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP19781635.8A priority Critical patent/EP3780814A4/en
Priority to KR1020207030951A priority patent/KR20200136976A/ko
Priority to JP2020554269A priority patent/JP7254831B2/ja
Publication of WO2019192466A1 publication Critical patent/WO2019192466A1/zh
Priority to US17/061,319 priority patent/US11832225B2/en

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    • 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
    • H04W72/20Control channels or signalling for resource management
    • H04W72/27Control channels or signalling for resource management between access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication 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
    • 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
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a method and an apparatus for configuring a relay resource.
  • the relay technology adds one or more relay nodes between the base station and the terminal, and is responsible for one or more forwarding of the wireless signal, that is, the wireless signal has to go through multiple hops to reach the terminal.
  • a base station-terminal link is divided into two links: a base station-relay station and a relay station-terminal, thereby organically replacing a poor quality link with two quality comparisons. Good links for higher link capacity and better coverage.
  • the 5G technology is used in research as a wireless relay as a backhaul.
  • Wireless relay backhaul technology also includes the adoption of wireless backhaul links above 6 GHz.
  • the higher the network band the shorter the transmission distance of the wireless backhaul.
  • the distance between wireless backhauls will be shorter and deployment will be more dense. Under the same-frequency deployment, how to coordinate relay resources and avoid resource conflicts has become a technical problem to be solved urgently.
  • An object of the embodiments of the present disclosure is to provide a method and a device for configuring a relay resource, to coordinate a relay resource of a relay device, avoid a relay resource conflict, and improve robustness of the relay communication.
  • the first aspect provides a method for configuring a relay resource, where the method includes:
  • relay resource configuration message carries at least one of time window resource information, backhaul backhaul resource information, and access link access link resource information of the relay device.
  • the second aspect provides a method for configuring a relay resource, where the method includes:
  • the relay resource configuration message carries at least one of time window resource information, backhaul backhaul resource information, and access link access link resource information of the relay device;
  • the backhaul resource and/or the access link resource of the relay device are configured based on the relay resource configuration message.
  • a device is provided, where the device is a device accessed by a relay device, and the device includes:
  • a first sending module configured to send a relay resource configuration message to the relay device, where the relay resource configuration message carries the time window resource information, the backhaul backhaul resource information, and the access link access link resource information of the relay device At least one of them.
  • a relay device where the relay device includes:
  • the receiving module receives a relay resource configuration message, where the relay resource configuration message carries at least one of time window resource information, backhaul backhaul resource information, and access link access link resource information of the relay device;
  • the configuration module configures a backhaul resource and/or an access link resource of the relay device based on the relay resource configuration message.
  • a device in a fifth aspect, is provided, the device being a device accessed by a relay device, the device comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, The steps of the method as described in the first aspect are implemented when the computer program is executed by the processor.
  • a relay device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being The steps of the method as described in the first aspect are implemented when executed.
  • a computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the method as described in the first aspect.
  • a computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the method as described in the second aspect.
  • the relay resource conflict of the relay device can be avoided, and the robustness of the relay communication is improved.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of a scenario in which IAB and DIAB communicate in one embodiment of the present disclosure.
  • FIG 3 is a schematic diagram of a scenario of communication between an IAB and a DIAB in another embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a scenario of communication between an IAB and a DIAB in still another embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a scenario of communication between an IAB and a DIAB in still another embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a scenario of communication between an IAB and a DIAB in still another embodiment of the present disclosure.
  • FIG. 7 is a flowchart of a method for configuring a relay resource according to an embodiment of the present disclosure.
  • FIG. 8 is a flow chart of a method for configuring a relay resource according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural view of an apparatus of one embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a relay device according to an embodiment of the present disclosure.
  • FIG. 11 is a structural diagram of an apparatus to which an embodiment of the present disclosure is applied.
  • FIG. 12 is a structural diagram of a relay device to which an embodiment of the present disclosure is applied.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution advanced
  • NR New Radio
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present disclosure.
  • the radio signal of the UE of FIG. 1 needs to pass through the relay 5, the relay 4, and the relay 2 to reach the host (Donor) network device of FIG. 1, and the host (Donor) network device is the relay device.
  • a device that enters the core network can be understood as a base station of the relay device.
  • IAB is committed to reusing existing functionality and interfaces defined for access. Specifically, Mobile-Termination (MT), gNB-DU, gNB-CU, UPF, AMF and SMF, and corresponding interfaces NR Uu (between MT and gNB), F1, NG, X2 and N4, Used as the basic module of the IAB network structure.
  • Mobile terminal (MT) functionality has been defined as an integral part of mobile devices.
  • an MT is referred to as a function residing on an IAB node that terminates a radio interface layer that points to a backhaul Uu interface of a DIAB or other IAB node.
  • DIAB is considered to be a single logical node that contains a set of functions. Single-node representation does not preclude DIAB being split into distributed or centralized entities.
  • the IAB may be a standalone IAB device, or may be partitioned into a distributed entity or a centralized entity; the DIAB may be a standalone DIAB device, or may be partitioned into distributed Entity or centralized entity.
  • FIG. 2 is a schematic diagram of a scenario in which IAB and DIAB communicate in one embodiment of the present disclosure.
  • the IAB communicates with the Donor base station (DIAB) on the wireless interface, and the IAB and the IAB communicate on the wireless interface.
  • the backhaul of F1-U uses the adaptation layer or uses the GTP-U combined with the adaptation layer; in addition, the hop-by-hop forwarding across the intermediate nodes uses the adaptation layer.
  • FIG. 3 is a schematic diagram of a scenario of communication between an IAB and a DIAB in another embodiment of the present disclosure.
  • the IAB communicates with the Donor base station (DIAB) on the wireless interface, and the IAB and the IAB communicate on the wireless interface.
  • DIAB Donor base station
  • F1-U or NG-U backhaul to the access node uses GTP-U/UDP/IP; in addition, hop-by-hop forwarding across intermediate nodes uses PDU session layer routing.
  • FIG. 4 is a schematic diagram of a scenario of communication between an IAB and a DIAB in still another embodiment of the present disclosure.
  • the IAB communicates with the Donor base station (DIAB) on the wireless interface, and the IAB and the IAB communicate on the wireless interface.
  • NG-U backhaul to the access node uses GTP-U/UDP/IP; in addition, hop-by-hop forwarding across intermediate nodes uses PDU session layer routing.
  • FIG. 5 is a schematic diagram of a scenario of communication between an IAB and a DIAB in still another embodiment of the present disclosure.
  • the IAB communicates with the Donor base station (DIAB) on the wireless interface, and the IAB and the IAB communicate on the wireless interface.
  • NG-U backhaul to the access node uses GTP-U/UDP/IP; in addition, hop-by-hop forwarding across intermediate nodes uses PDU session layer routing.
  • FIG. 6 is a schematic diagram of a scenario of communication between an IAB and a DIAB in still another embodiment of the present disclosure.
  • the IAB communicates with the Donor base station (DIAB) on the wireless interface, and the IAB and the IAB communicate on the wireless interface.
  • the NG-U backhaul to the access node uses GTP-U/UDP/IP; in addition, hop-by-hop forwarding across intermediate nodes uses PDU session layer routing.
  • FIG. 1 to FIG. 6 are only some application scenarios of the technical solutions of the embodiments of the present disclosure, and the application scenarios of the technical solutions of the embodiments of the present disclosure are not limited thereto.
  • FIG. 7 is a flowchart of a method for configuring a relay resource according to an embodiment of the present disclosure.
  • the method of Figure 7 is applied to a target device accessed by a relay device.
  • the method of Figure 7 can include:
  • the relay resource configuration message carries at least one of time window resource information, backhaul resource information, and access link resource information of the relay device.
  • the relay resource configuration message may be sent to the relay device through a Radio Resource Control (RRC) or a Media Access Control (MAC) Control Element (CE).
  • RRC Radio Resource Control
  • MAC Media Access Control
  • CE Control Element
  • the time window resource is indicated by a time window index or a time window bitmap.
  • a time window index indicates which time window resources the relay device is available with.
  • the time window corresponding to the bit set to 1 in the time window bitmap is the time window resource available to the relay device.
  • the target device is a Donova Integrated Access and Backhaul (DIAB) device
  • the relay device is a standalone integrated access and backhaul (Integrated Access). And Backhaul, IAB) equipment.
  • the target device may be a host (Donor) network device of the embodiment shown in FIG. 1, and the relay device may be a relay 2.
  • the target device is a Centralized Unit (CU) of the IAB
  • the relay device is a Distributed Unit (DU) of the IAB.
  • the target device is a CU of a DIAB
  • the relay device is a DU of the DIAB
  • the target device is a CU of a DIAB
  • the relay device is a CU in an IAB that accesses the DIAB.
  • the method may further include: determining, according to the relay resource requirement information reported by the IAB of the DIAB, the relay of the DU of the DIAB. Resources and/or relay resources of the DIAB's IAB.
  • the CU of the DIAB may negotiate the allocation of the relay resource of the relay device under the jurisdiction of the DIAB based on the relay resource requirement information reported by the IAB, and send the allocated relay resource to the DIAB through the relay resource configuration message.
  • DU and the CU under the DIAB's IAB.
  • the sending time resource of sending the relay resource configuration message is before the earliest time resource configured by the relay resource configuration message, and the time interval of the sending time resource and the earliest time resource is based on The backhaul delay and the internal processing delay of the relay device are determined.
  • the backhaul delay is determined by the target device and/or the relay device evaluation.
  • the internal processing delay of the relay device is determined by the internal processing capability, algorithm, and the like of the relay device.
  • the backhaul delay may be determined by the target device evaluation, or determined by the relay device evaluation, or determined jointly by the target device and the relay device.
  • the backhaul resource of the relay device includes at least one of the following:
  • the backhaul resource of the relay device to the target device within the time window is the backhaul resource of the relay device to the target device within the time window.
  • the relay device may configure the backhaul resource of the relay device.
  • the access link resource of the relay device includes:
  • the backhaul resource of the relay device to the subordinate relay device is the backhaul resource of the relay device to the subordinate relay device.
  • the relay device may configure an access link resource of the relay device based on the access link resource information in the relay resource configuration message.
  • the relay resource configuration message further indicates the The time domain resource of the first resource is a downlink backhaul time domain resource or a downlink non-backhaul time domain resource.
  • FDD Frequency Division Duplex
  • the relay resource configuration message further indicates that the time domain resource of the second resource is Uplink back time domain resources or uplink non-backhaul time domain resources.
  • the relay resource configuration message further indicates the The time domain resource of the third resource is an uplink backhaul time domain resource, a downlink backhaul time domain resource, or a non-backhaul time domain resource.
  • TDD Time Division Duplex
  • the relay resource configuration message indicates that the time domain resource of the third resource is a non-backhaul time domain resource
  • the relay resource configuration message further indicates that the third resource is a downlink non-return The time domain resource, the uplink non-backhaul time domain resource, or the uplink and downlink variable non-backhaul time domain resources.
  • the time window is pre-assigned to the relay device.
  • the time window is configured by the target device for the relay device.
  • the method further includes:
  • the time window resource is indicated by a time window index or a time window bitmap.
  • the time window resource available to the relay device can be re-adjusted by sending a time window reconfiguration message to the relay device.
  • the IAB network includes one CU and several DUs.
  • the CU is a DIAB
  • the DU is an IAB
  • the DIAB and IAB are both stand-alone base stations.
  • the CU may configure the resources of each DU in the IAB network and deliver the resources to the DU.
  • the resources of this configuration include time domain resources and frequency resources.
  • the CU may indicate to the DU in advance the set of resources used for backhaul transmission by signaling.
  • the signaling may be PDCCH or L2 signaling, such as MAC-CE or RRC signaling.
  • the resources carried in the signaling may be indicated by a resource index or by using a resource bitmap.
  • the signaling may indicate a time resource time resource set for backhaul transmission in a time window of a future time window, including at least one of the following:
  • the DL backhaul time resource that is, the DU needs to receive the signal of the CU in the DL backhaul time resource set;
  • the UL backhaul time resource that is, the DU is allowed to send a signal to the CU in the UL backhaul time resource set;
  • the time resource collection for bakchaul transmission is not indicated in the Time window. It should be understood that the time resource set DU that is not indicated for bakchaul transmission does not need to be received/transmitted with the CU.
  • the CU may indicate that a time resource is DL backhaul, or DL non-backhaul;
  • donor gNB may indicate that a time resource is UL backhaul or UL non-backhaul;
  • the CU may indicate that a time resource is DL backhaul or UL backhaul, or non-backhaul.
  • the CU may further indicate the time resource DL time resource, UL time resource, and variable DL/UL time resource.
  • time window may be a predefined provisioning DU, for example, equal to one or more radio frame periods, or configured by the DU under the CU.
  • the CU may indicate to the DU through RRC or MAC CE signaling.
  • the indication may be based on a time window index or a time window bitmap.
  • the DU needs to advance X time (X unit is slot or symbol) to know whether a time resource is used for DL backhaul, or UL backhaul, or non-backhaul.
  • DU processing time has DU evaluation, and backhaul delay is evaluated by CU and/or DU.
  • the CU uses the bitmap method to adopt a method similar to the MBFSN subframe configuration.
  • the CU configures the time resource and the time window to be distributed to the DU by using MAC-CE or RRC signaling.
  • the backhaul frequency domain resource may be configured, or the back time resource and the frequency domain resource may be configured at the same time, which is not limited in this embodiment of the disclosure.
  • the DU can learn the time resource set that can be used for the interface between the DU and the UE, or the time resource set of the interface between the DU and the lower-level DU that accesses the DU, according to the signaling sent by the CU.
  • a DL non-backhaul time resource can be used for the DU to send a DL signal to the UE it serves;
  • a UL non-backhaul time resource may be used for the DU to receive the UL signal sent by the serving UE;
  • the DU can determine a non-backhaul time resource for access link DL transmission or access link UL transmission.
  • the DU may determine, according to the signaling, that a non-backhaul time resource is used for the access link DL transmission or the access link UL transmission.
  • the DU can obtain the available time resource and time window according to the bit that the CU is set to 1 in the bitmap.
  • the available time resource and time window configurations include backhaul and access link resources.
  • the DIAB includes a CU and at least one DU, and the IAB includes a CU and at least one DU.
  • the DIAB centrally configures the resources of the time resource set and the time window, and delivers them to the DUs of the DIAB and the CUs of other IABs.
  • the CU of each IAB is sent to the DU under the corresponding IAB.
  • the DIAB is a configuration resource of the DIB of the DIAB
  • the DIB is the CU configuration resource of the other IAB
  • the CU of the IAB is the resource allocation method of the corresponding IAB.
  • the configuration of the previous embodiment is similar to that of the previous embodiment, and details are not described herein.
  • the DAIB can negotiate the resources of the time resource and the time window with the IAB first.
  • the DAIB is configured according to the DU resource requirements under each IAB. Then, each IAB and DIAB delivers configuration resources to the relevant DUs.
  • relay resources in the foregoing specific embodiments 1 and 2 only take the resources of the time resource and the time window as an example, in actual applications, the relay resources may further include resources on the frequency domain and air interfaces. Resources, and more. The embodiments of the present disclosure do not limit this.
  • FIG. 8 is a flow chart of a method for configuring a relay resource according to an embodiment of the present disclosure. This method is applied to a relay device. As shown in FIG. 8, the method can include:
  • the relay resource configuration message carries at least one of time window resource information, backhaul resource information, and access link resource information of the relay device.
  • the relay device configures the relay resource configuration message and configures the relay resource of the relay device based on the relay resource configuration message, thereby ensuring normal configuration and use of the relay resource of the relay device, and avoiding Congestion and interference of network resources of the relay device improve the robustness of the relay communication.
  • the relay device is a standalone IAB device, and the target device accessed by the relay device is a DIAB device accessed by the IAB device.
  • the relay device is a distribution unit DU of the IAB
  • the target device is a centralized unit CU of the IAB.
  • the relay device is a DU of a DIAB
  • the target device is a CU of the DIAB.
  • the relay device is a CU in an IAB
  • the target device is a CU of a DIAB to which the IAB is accessed.
  • the method further includes: before step S810, the method further includes:
  • the relay resource requirement information of the IAB is sent to the target device, where the relay resource requirement information is used by the target device to coordinate the trunk resource configuration of the DU and/or the IAB under the target device.
  • the target device may be requested to configure the relay resource based on the relay resource requirement of the relay device, thereby enabling the target device to coordinate the DU under the target device and/or IAB's trunk resource configuration.
  • the backhaul resource of the relay device includes at least one of the following:
  • the backhaul resource of the relay device to the target device within the time window is the backhaul resource of the relay device to the target device within the time window.
  • step S820 can be specifically implemented as:
  • the relay resource configuration message carries the first backhaul resource information of the target device to the relay device in the time window
  • the downlink backhaul resource of the relay device is configured based on the first backhaul resource information.
  • step S820 is specifically implemented as: if the relay resource configuration message carries the second backhaul resource information of the relay device to the target device in the time window, based on the second Backhaul resource information, configure the upstream backhaul resources of the relay device.
  • the access link resource of the relay device includes:
  • the backhaul resource of the relay device to the subordinate relay device is the backhaul resource of the relay device to the subordinate relay device.
  • step S820 can be specifically implemented as:
  • the access link resource of the relay device is configured based on the resource information for the backhaul transmission not indicated in the time window.
  • step S820 may be specifically implemented as:
  • the relay resource configuration message carries the first access link resource information of the terminal device that accesses the relay device to the relay device
  • the uplink access link of the relay device is configured based on the first access link resource information. Resources.
  • step S820 may be specifically implemented as:
  • the relay resource configuration message carries the second access link resource information of the relay device to the terminal device that accesses the relay device
  • the downlink access link of the relay device is configured based on the second access link resource information. Resources.
  • step S820 may be specifically implemented as:
  • the uplink backhaul resource of the subordinate relay device is configured based on the third backhaul resource information.
  • step S820 may be specifically implemented as:
  • the relay resource configuration message carries the fourth backhaul resource information of the relay device to the subordinate relay device
  • the downlink backhaul resource of the subordinate relay device is configured based on the fourth backhaul resource information.
  • step S820 may also be specifically implemented as:
  • the carrier type of the first resource configured in the Trunk resource configuration message is a frequency division multiplexed FDD downlink carrier, and the Trunk resource configuration message further indicates that the time domain resource of the first resource is a downlink backhaul time domain resource,
  • the first resource is configured as a downlink backhaul time domain resource of the relay device.
  • step S820 may also be specifically implemented as:
  • the carrier type of the second resource configured in the hop resource configuration message is a frequency division multiplexed FDD downlink carrier, and the hop resource configuration message further indicates that the time domain resource of the second resource is a downlink non-backhaul time domain resource And configuring the second resource to be a downlink non-backhaul time domain resource of the relay device.
  • step S820 may also be specifically implemented as:
  • the carrier type of the third resource configured in the Trunk resource configuration message is an FDD uplink carrier, and the Trunk resource configuration message further indicates that the time domain resource of the third resource is an uplink backhaul time domain resource, configure the The three resources are uplink backhaul time domain resources of the relay device.
  • step S820 may also be specifically implemented as:
  • the carrier type of the fourth resource configured in the Trunk resource configuration message is an FDD uplink carrier, and the Trunk resource configuration message further indicates that the time domain resource of the fourth resource is an uplink non-backhaul time domain resource, configure the The fourth resource is an uplink non-backhaul time domain resource of the relay device.
  • step S820 may also be specifically implemented as:
  • the carrier type of the fifth resource configured in the Trunk resource configuration message is a time division multiplexed TDD carrier, and the Trunk resource configuration message further indicates that the time domain resource of the fifth resource is an uplink backhaul time domain resource, then configuring The fifth resource is an uplink backhaul time domain resource of the relay device.
  • step S820 may also be specifically implemented as:
  • the carrier type of the sixth resource configured in the Trunk resource configuration message is a time division multiplexed TDD carrier, and the Trunk resource configuration message further indicates that the time domain resource of the sixth resource is a downlink backhaul time domain resource
  • configuration The sixth resource is a downlink backhaul time domain resource of the relay device.
  • step S820 may also be specifically implemented as:
  • the carrier type of the seventh resource configured in the Trunk resource configuration message is a time division multiplexed TDD carrier, and the Trunk resource configuration message further indicates that the time domain resource of the seventh resource is a non-backhaul time domain resource, then configuring The seventh resource is an access link time domain resource of the relay device.
  • step S820 may also be specifically implemented as:
  • the Trunk resource configuration message indicates that the time domain resource of the seventh resource is a non-backhaul time domain resource
  • the seventh resource is configured as a downlink access link time domain resource of the relay device, an uplink access link time domain resource, or Up and down variable access link time domain resources.
  • the method performed by the relay device in the embodiment of the present disclosure may refer to the method performed by the DU of the IAB in Embodiment 1, or the method of implementing the DU of the DIAB or the CU of the IAB in Embodiment 2, and details are not described herein again.
  • FIG. 9 is a block diagram showing the structure of an apparatus 900 according to an embodiment of the present disclosure.
  • the device 900 is a device that the relay device accesses. As shown in FIG. 9, device 900 can include:
  • the first sending module 910 is configured to send a relay resource configuration message to the relay device, where the relay resource configuration message carries at least one of time window resource information, backhaul resource information, and access link resource information of the relay device.
  • the device 900 is a standalone DIAB device, which is a standalone IAB device.
  • the device 900 is a CU of an IAB, and the relay device is a DU of the IAB.
  • the device 900 is a CU of a DIAB, and the relay device is a DU of the DIAB.
  • the device 900 is a CU of a DIAB
  • the relay device is a CU in an IAB that accesses the DIAB.
  • the device 900 may include a determining module 920, determining, according to the relay resource requirement information reported by the IAB of the DIAB, the relay resource of the DUB of the DIAB and/or the middle of the IAB of the DIAB. Following resources.
  • the sending time resource of sending the relay resource configuration message is before the earliest time resource configured by the relay resource configuration message, and the time interval of the sending time resource and the earliest time resource is based on The backhaul delay and the internal processing delay of the relay device are determined.
  • the backhaul delay is determined by the device 900 and/or the relay device evaluation.
  • the internal processing delay of the relay device is determined by the internal processing capability, algorithm, and the like of the relay device.
  • the backhaul delay may be determined by the device 900 for evaluation, or determined by the relay device evaluation, or determined jointly by the device and the relay device.
  • the backhaul resource of the relay device includes at least one of the following:
  • the access link resource of the relay device includes:
  • the backhaul resource of the relay device to the subordinate relay device is the backhaul resource of the relay device to the subordinate relay device.
  • the relay resource configuration message further indicates that the time domain resource of the first resource is a downlink back Pass time domain resources or downlink non-return time domain resources.
  • the relay resource configuration message further indicates that the time domain resource of the second resource is Uplink back time domain resources or uplink non-backhaul time domain resources.
  • the relay resource configuration message further indicates that the time domain resource of the third resource is an uplink. Return time domain resources, downlink backhaul time domain resources, or non-backhaul time domain resources.
  • the relay resource configuration message indicates that the time domain resource of the third resource is a non-backhaul time domain resource
  • the relay resource configuration message further indicates that the third resource is a downlink non-return The time domain resource, the uplink non-backhaul time domain resource, or the uplink and downlink variable non-backhaul time domain resources.
  • the time window is pre-assigned to the relay device.
  • the time window is that the device 900 is configured for the relay device.
  • the device 900 may further include a second sending module 930, configured to send, by using an RRC or a MAC CE, a time window reconfiguration message to the relay device, where the time window reconfiguration message is used to Configure the time window resources available to the relay device;
  • the time window resource is indicated by a time window index or a time window bitmap.
  • the device provided by the embodiment of the present disclosure can implement various processes implemented by the target device in the method embodiment of FIG. 7, and implement the method performed by the CU of the IAB in Embodiment 1, or the method implemented by the CU of the DIAB in Embodiment 2.
  • the embodiments of the present disclosure are not described herein again.
  • FIG. 10 is a schematic structural diagram of a relay device 1000 according to an embodiment of the present disclosure. As shown in FIG. 10, the relay device 1000 can include:
  • the receiving module 1010 receives a relay resource configuration message, where the relay resource configuration message carries at least one of time window resource information, backhaul resource information, and access link resource information of the relay device 1000.
  • the configuration module 1020 configures a backhaul resource and/or an access link resource of the relay device 1000 based on the relay resource configuration message.
  • the relay device configures the relay resource configuration message and configures the relay resource of the relay device based on the relay resource configuration message, thereby ensuring normal configuration and use of the relay resource of the relay device, and avoiding Congestion and interference of network resources of the relay device improve the robustness of the relay communication.
  • the relay device 1000 is a standalone IAB device, and the target device accessed by the relay device 1000 is a DIAB device accessed by the IAB device.
  • the relay device 1000 is a distribution unit DU of an IAB, and the target device is a centralized unit CU of the IAB.
  • the relay device 1000 is a DU of a DIAB
  • the target device is a CU of the DIAB.
  • the relay device 1000 is a CU in an IAB
  • the target device is a CU of a DIAB to which the IAB is accessed.
  • the relay device 1000 further includes: a sending module 1030, configured to: The relay resource requirement information of the IAB is sent to the target device, where the relay resource requirement information is used by the target device to coordinate the trunk resource configuration of the DU and/or the IAB under the target device.
  • the backhaul resource of the relay device 1000 includes at least one of the following:
  • the relay device 1000 to the backhaul resource of the target device within the time window.
  • the configuration module 1020 is specifically configured to:
  • the relay resource configuration message carries the first backhaul resource information of the target device to the relay device 1000 in the time window
  • the downlink backhaul resource of the relay device is configured based on the first backhaul resource information.
  • the configuration module 1020 is specifically configured to: if the relay resource configuration message carries the second backhaul resource information of the relay device 1000 to the target device in the time window, based on the first Two backhaul resource information, configure the upstream backhaul resources of the relay device.
  • the access link resource of the relay device 1000 includes:
  • the relay device 1000 sends backhaul resources to the subordinate relay device.
  • the configuration module 1020 is specifically configured to:
  • the access link resource of the relay device is configured based on the resource information for the backhaul transmission not indicated in the time window.
  • the configuration module 1020 is specifically configured to:
  • the relay resource configuration message carries the first access link resource information of the terminal device that accesses the relay device 1000 to the relay device 1000, configuring the relay device 1000 based on the first access link resource information. Uplink access link resources.
  • the configuration module 1020 is specifically configured to:
  • the relay resource configuration message carries the second access link resource information of the relay device 1000 to the terminal device that accesses the relay device 1000, configuring the relay device 1000 based on the second access link resource information. Downstream access link resources.
  • the configuration module 1020 is specifically configured to:
  • the relay resource configuration message carries the third backhaul resource information of the subordinate relay device that accesses the relay device 1000 to the relay device 1000, configure the uplink of the subordinate relay device based on the third backhaul resource information. Backhaul resources.
  • the configuration module 1020 is specifically configured to:
  • the relay resource configuration message carries the fourth backhaul resource information of the relay device 1000 to the lower-level relay device
  • the downlink backhaul resource of the lower-level relay device is configured based on the fourth backhaul resource information.
  • the configuration module 1020 is further specifically configured to:
  • the carrier type of the first resource configured in the Trunk resource configuration message is a frequency division multiplexed FDD downlink carrier, and the Trunk resource configuration message further indicates that the time domain resource of the first resource is a downlink backhaul time domain resource, Then, the first resource is configured as a downlink backhaul time domain resource of the relay device 1000.
  • the configuration module 1020 is specifically configured to:
  • the carrier type of the second resource configured in the hop resource configuration message is a frequency division multiplexed FDD downlink carrier
  • the hop resource configuration message further indicates that the time domain resource of the second resource is a downlink non-backhaul time domain resource
  • the configuration module 1020 is specifically configured to:
  • the carrier type of the third resource configured in the Trunk resource configuration message is an FDD uplink carrier, and the Trunk resource configuration message further indicates that the time domain resource of the third resource is an uplink backhaul time domain resource, configure the The three resources are uplink backhaul time domain resources of the relay device 1000.
  • the configuration module 1020 is specifically configured to:
  • the carrier type of the fourth resource configured in the Trunk resource configuration message is an FDD uplink carrier, and the Trunk resource configuration message further indicates that the time domain resource of the fourth resource is an uplink non-backhaul time domain resource, configure the The fourth resource is an uplink non-backhaul time domain resource of the relay device 1000.
  • the configuration module 1020 is specifically configured to:
  • the carrier type of the fifth resource configured in the Trunk resource configuration message is a time division multiplexed TDD carrier, and the Trunk resource configuration message further indicates that the time domain resource of the fifth resource is an uplink backhaul time domain resource, then configuring The fifth resource is an uplink backhaul time domain resource of the relay device 1000.
  • the configuration module 1020 is specifically configured to:
  • the carrier type of the sixth resource configured in the Trunk resource configuration message is a time division multiplexed TDD carrier, and the Trunk resource configuration message further indicates that the time domain resource of the sixth resource is a downlink backhaul time domain resource
  • configuration The sixth resource is a downlink backhaul time domain resource of the relay device 1000.
  • the configuration module 1020 is specifically configured to:
  • the carrier type of the seventh resource configured in the Trunk resource configuration message is a time division multiplexed TDD carrier, and the Trunk resource configuration message further indicates that the time domain resource of the seventh resource is a non-backhaul time domain resource, then configuring The seventh resource is an access link time domain resource of the relay device 1000.
  • the configuration module 1020 can be further specifically configured to:
  • the Trunk resource configuration message indicates that the time domain resource of the seventh resource is a non-backhaul time domain resource
  • the seventh resource is configured as a downlink access link time domain resource and an uplink access link time domain resource of the relay device 1000. Or variable access link time domain resources.
  • the relay device 1000 provided by the embodiment of the present disclosure can implement the processes implemented by the relay device in the method embodiment of FIG. 8 and implement the method performed by the DU of the IAB in Embodiment 1, or implement the DU of the DIAB or the CU of the IAB.
  • the method performed in Embodiment 2 is not described herein again.
  • FIG. 11 is a structural diagram of an apparatus 1100 according to an embodiment of the present disclosure, which can implement the details of the method shown in FIG. 7 and achieve the same effect.
  • the device 1100 is a device accessed by a relay device. As shown in FIG. 11, the device 1100 includes a processor 1101, a transceiver 1102, a memory 1103, a user interface 1104, and a bus interface, where:
  • the device 1100 further includes: a computer program stored on the memory 1103 and executable on the processor 1101.
  • a computer program stored on the memory 1103 and executable on the processor 1101.
  • the relay resource configuration message is sent to the relay device, where the relay resource configuration message carries at least one of time window resource information, backhaul resource information, and access link resource information of the relay device.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1101 and various circuits of memory represented by memory 1103.
  • 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 and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1102 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 1104 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 can store data used by the processor 1101 when performing operations.
  • the embodiment of the present disclosure further provides a computer readable storage medium.
  • the computer readable storage medium stores a computer program. When the computer program is executed by the processor, the various processes of the foregoing method embodiment of FIG. 7 are implemented, and the same technology can be achieved. The effect, to avoid repetition, will not be repeated here.
  • the computer readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • FIG. 12 is a structural diagram of a relay device 1200 according to an embodiment of the present disclosure, which can implement the details of the method shown in FIG. 8 and achieve the same effect.
  • the device 1200 is a device accessed by a relay device.
  • the relay device 1200 includes a processor 1201, a transceiver 1202, a memory 1203, a user interface 1204, and a bus interface, where:
  • the relay device 1200 further includes: a computer program stored on the memory 1203 and operable on the processor 1201. When the computer program is executed by the processor 1201, the following steps are implemented:
  • the relay resource configuration message carries at least one of time window resource information, backhaul resource information, and access link resource information of the relay device;
  • the backhaul resource and/or the access link resource of the relay device are configured based on the relay resource configuration message.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1201 and various circuits of memory represented by memory 1203.
  • 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 and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1202 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 1204 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 can store data used by the processor 1201 in performing operations.
  • the embodiment of the present disclosure by sending a relay resource configuration message to the relay device, it is possible to ensure normal configuration and use of the relay resource of the relay device, avoid congestion and interference of the network resource of the relay device, and improve relay communication. Robustness.
  • the embodiment of the present disclosure further provides a computer readable storage medium, where the computer program is stored on a computer program, and when the computer program is executed by the processor, the processes of the foregoing method embodiment of FIG. 8 are implemented, and the same technology can be achieved. The effect, to avoid repetition, will not be repeated here.
  • the computer readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

Abstract

本公开公开了一种中继资源的配置方法和设备,该方法应用于中继设备接入的目标设备,包括:向中继设备发送中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、backhaul资源信息和access link资源信息中的至少一种。

Description

中继资源的配置方法和设备
相关申请的交叉引用
本申请主张在2018年4月3日在中国提交的中国专利申请号No.201810295818.9的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信领域,尤其涉及一种中继资源的配置方法和设备。
背景技术
中继(Relay)技术,就是在基站与终端之间增加了一个或多个中继节点,负责对无线信号进行一次或者多次的转发,即无线信号要经过多跳才能到达终端。以较简单的两跳中继为例,就是将一个基站—终端链路分割为基站—中继站和中继站—终端两个链路,从而有机会将一个质量较差的链路替换为两个质量较好的链路,以获得更高的链路容量及更好的覆盖。
5G技术在研究用无线中继作为回传。无线中继回传技术也包括采纳6GHz以上的无线回传链路。网络频段越高会导致无线回传的传输距离更短。为了有效地达到更好多条传输,无线回传的之间的距离也会更加短,部署更加密集。在同频部署下,如何协调中继资源,避免资源冲突,成为亟待解决的技术问题。
发明内容
本公开实施例的目的是提供一种中继资源的配置方法和设备,以协调中继设备的中继资源,避免中继资源冲突,提高中继通信的鲁棒性。
第一方面,提供了一种中继资源的配置方法,该方法包括:
向中继设备发送中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种。
第二方面,提供了一种中继资源的配置方法,该方法包括:
接收中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种;
基于该中继资源配置消息,配置该中继设备的backhaul资源和/或access link资源。
第三方面,提供了一种设备,该设备是中继设备接入的设备,该设备包括:
第一发送模块,用于向中继设备发送中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种。
第四方面,提供了一种中继设备,该中继设备包括:
接收模块,接收中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种;
配置模块,基于该中继资源配置消息,配置该中继设备的backhaul资源和/或access link资源。
第五方面,提供了一种设备,该设备是中继设备接入的设备,该设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种中继设备,该中继设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如第一方面所述的方法的步骤。
第七方面,提供了一种计算机可读存储介质,其中,所述计算机可读存储介质上存储计算机程序,所述计算机程序被处理器执行时实现如第一方面所述的方法的步骤。
第八方面,提供了一种计算机可读存储介质,其中,所述计算机可读存储介质上存储计算机程序,所述计算机程序被处理器执行时实现如第二方面所述的方法的步骤。
在本公开实施例中,通过为中继设备发送中继资源配置消息,以配置中继设备的中继资源,从而能够避免中继设备的中继资源冲突,提高中继通信的鲁棒性。
附图说明
此处所说明的附图用来提供对本公开的进一步理解,构成本公开的一部分,本公开的示意性实施例及其说明用于解释本公开,并不构成对本公开的不当限定。在附图中:
图1是本公开的一个实施例的应用场景示意图。
图2是本公开的一个实施例IAB和DIAB通信的场景示意图。
图3是本公开的另一个实施例IAB和DIAB之间通信的场景示意图。
图4是本公开的再一个实施例IAB和DIAB之间通信的场景示意图。
图5是本公开的再一个实施例IAB和DIAB之间通信的场景示意图。
图6是本公开的再一个实施例IAB和DIAB之间通信的场景示意图。
图7是本公开的一个实施例中继资源的配置方法流程图。
图8是本公开的一个实施例中继资源配置的方法流程图。
图9是本公开的一个实施例的设备的结构示意图。
图10是本公开的一个实施例中继设备的结构示意图。
图11是本公开实施例应用的设备的结构图。
图12是本公开实施例应用的中继设备的结构图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本公开的技术方案,可以应用于各种通信系统,例如:全球移动通讯系统(Global System of Mobile communication,GSM),码分多址(Code Division Multiple Access,CDMA)系统,宽带码分多址(Wideband Code Division  Multiple Access,WCDMA),通用分组无线业务(General Packet Radio Service,GPRS),长期演进(Long Term Evolution,LTE)/增强长期演进(Long Term Evolution advanced,LTE-A),NR(New Radio)等。
以下结合附图,详细说明本公开各实施例提供的技术方案。
应理解,在存在中继的通信中,基站与终端设备的通信需要经过一次或者多次的转发,即无线信号要经过多跳才能从基站到达终端设备,或者从终端设备到大基站。图1是本公开的一个实施例的应用场景示意图。如图1所示,图1的UE的无线信号需要经过中继5、中继4、中继2,才能到达图1的宿主(Donor)网络设备,宿主(Donor)网络设备是中继设备接入核心网的设备,可以理解为中继设备的基站。
应理解,IAB致力于重用为访问而定义的现有功能和接口。具体来说,移动终止(Mobile-Termination,MT),gNB-DU,gNB-CU,UPF,AMF和SMF,以及相应的接口NR Uu(MT和gNB之间),F1,NG,X2和N4,被用于作为IAB网络结构的基本模块。
移动终端(MT)功能已被定义为移动设备的一个组成部分。在本公开中,MT被称为驻留在IAB节点上的功能,该功能用于终止指向DIAB或其他IAB节点的回程Uu接口的无线接口层。
在本公开的IAB网络结构中,DIAB被视为包含一组函数的单个逻辑节点。单节点表示并不排除DIAB被分割为分布式或集中式实体。
当然,应理解,在本公开实施例中,IAB可以是独立式的IAB设备,或者可以被分割成分布式实体或集中式实体;DIAB可以是独立式的DIAB设备,或者可以被分割成分布式实体或集中式实体。
图2是本公开的一个实施例IAB和DIAB通信的场景示意图。如图2所示,IAB与Donor基站(DIAB)于无线接口通讯,IAB与IAB之间于无线接口通讯。在图2所示的场景中,F1-U的回程使用适配层,或者使用与适配层结合的GTP-U;另外,跨中间节点的逐跳转发使用适配层。
图3是本公开的另一个实施例IAB和DIAB之间通信的场景示意图。如图3所示,IAB与Donor基站(DIAB)于无线接口通讯,IAB与IAB之间于无线接口通讯。在图3所示的场景中,F1-U或NG-U到接入节点的回传使用 GTP-U/UDP/IP;另外,跨中间节点的逐跳转发使用PDU会话层路由。
图4是本公开的再一个实施例IAB和DIAB之间通信的场景示意图。如图4所示,IAB与Donor基站(DIAB)于无线接口通讯,IAB与IAB之间于无线接口通讯。在图4所示的场景中,NG-U到接入节点的回传使用GTP-U/UDP/IP;另外,跨中间节点的逐跳转发使用PDU会话层路由。
图5是本公开的再一个实施例IAB和DIAB之间通信的场景示意图。如图5所示,IAB与Donor基站(DIAB)于无线接口通讯,IAB与IAB之间于无线接口通讯。在图5所示的场景中,NG-U到接入节点的回传使用GTP-U/UDP/IP;另外,跨中间节点的逐跳转发使用PDU会话层路由。
图6是本公开的再一个实施例IAB和DIAB之间通信的场景示意图。如图6所示,IAB与Donor基站(DIAB)于无线接口通讯,IAB与IAB之间于无线接口通讯。在图6所示的场景中,NG-U到接入节点的回传使用GTP-U/UDP/IP;另外,跨中间节点的逐跳转发使用PDU会话层路由。
当然,应理解,前述图1-图6仅仅是本公开实施例的技术方案的一些应用场景,本公开实施例的技术方案的应用场景并不局限于此。
下面,将结合图1-图6,对本公开实施例的方法进行阐述。
图7是本公开的一个实施例中继资源的配置方法流程图。图7的方法应用于中继设备接入的目标设备。图7的方法可包括:
S710,向中继设备发送中继资源配置消息。
其中,该中继资源配置消息携带该中继设备的时间窗资源信息、回传(backhaul)资源信息和接入链路(access link)资源信息中的至少一种。
本公开实施例中,通过向中继设备发送中继资源配置消息,从而能够保证中继设备的中继资源的正常配置和使用,避免中继设备的网络资源的拥塞和干扰,提高中继通信的鲁棒性。
应理解,该中继资源配置消息可以通过无线资源控制(Radio Resource Control,RRC)或媒体访问控制层(Media Access Control,MAC)控制元素(Control Element,CE)向该中继设备发送。
应理解,该时间窗资源通过时间窗索引或时间窗bitmap指示。例如,指示分配给中继设备的时间窗的索引,又例如,通过时间窗bitmap指示中继设 备在哪些时间窗资源可用。其中,时间窗bitmap中被置为1的比特位对应的时间窗即为中继设备可用的时间窗资源。
可选地,在一些实施例中,该目标设备为独立式宿主集成接入和回传(Donor Integrated Access and Backhaul,DIAB)设备,该中继设备为独立式集成接入和回传(Integrated Access and Backhaul,IAB)设备。例如,该目标设备可以是图1所示实施例的宿主(Donor)网络设备,中继设备可以是中继2。
可选地,在一些实施例中,该目标设备为IAB的集中单元(Centralized Unit,CU),该中继设备为该IAB的分布单元(Distributed Unit,DU)。
可选地,在一些实施例中,该目标设备为DIAB的CU,该中继设备为该DIAB的DU。
可选地,在一些实施例中,该目标设备为DIAB的CU,该中继设备为接入该DIAB的IAB中的CU。
当然,应理解,在前述目标设备为DIAB的CU的实施例中,在步骤S710之前,该方法还可包括:基于该DIAB的IAB上报的中继资源需求信息,确定该DIAB的DU的中继资源和/或该DIAB的IAB的中继资源。
此时,DIAB的CU可基于IAB上报的中继资源需求信息,协商分配DIAB管辖的中继设备的中继资源,并将分配好的中继资源,通过中继资源配置消息发送给该DIAB的DU,以及该DIAB的IAB下的CU。
可选地,在一些实施例中,发送中继资源配置消息的发送时间资源在该中继资源配置消息配置的最早的时间资源之前,且该发送时间资源与该最早的时间资源的时间间隔基于回传时延和该中继设备的内部处理时延确定。
进一步地,在一些实施例中,该回传时延是由该目标设备和/或该中继设备评估确定的。
应理解,该中继设备的内部处理时延由该中继设备的内部处理能力、算法等决定。
此外,该回传时延可以由目标设备评估确定,或者由中继设备评估确定,或者由目标设备和中继设备共同评估确定。
可选地,在一些实施例中,该中继设备的backhaul资源包括如下至少一 种:
时间窗口内该目标设备到该中继设备的backhaul资源;
时间窗口内该中继设备到该目标设备的backhaul资源。
应理解,基于中继资源配置消息中的backhaul资源信息,中继设备可配置中继设备的backhaul资源。
可选地,在一些实施例中,该中继设备的access link资源包括:
时间窗口内未指示用于backhaul传输的资源;
接入该中继设备的终端设备到该中继设备的access link资源;
该中继设备到接入该中继设备的终端设备的access link资源;
接入该中继设备的下级中继设备到该中继设备的backhaul资源;
该中继设备到该下级中继设备的backhaul资源。
应理解,基于中继资源配置消息中的access link资源信息,中继设备可配置中继设备的access link资源。
可选地,在一些实施例中,如果该中继资源配置消息中配置的第一资源的载波类型为频分复用(Frequency Division Duplex,FDD)下行载波,该中继资源配置消息还指示该第一资源的时域资源为下行回传时域资源或下行非回传时域资源。
或者,可选地,在一些实施例中,如果该中继资源配置消息中配置的第二资源的载波类型为FDD上行载波,该中继资源配置消息还指示该第二资源的时域资源为上行回传时域资源或上行非回传时域资源。
或者,可选地,在一些实施例中,如果该中继资源配置消息中配置的第三资源的载波类型为时分复用(Time Division Duplex,TDD)载波,该中继资源配置消息还指示该第三资源的时域资源为上行回传时域资源、下行回传时域资源或非回传时域资源。
进一步地,在一些实施例中,如果该中继资源配置消息指示该第三资源的时域资源为非回传时域资源,则该中继资源配置消息还指示该第三资源为下行非回传时域资源、上行非回传时域资源或上下行可变的非回传时域资源。
可选地,在一些实施例中,该时间窗是预先分配给该中继设备的。
或者,可选地,在一些实施例中,该时间窗是该目标设备为该中继设备 配置的。
可选地,在一些实施例中,在步骤S710之后,该方法还包括:
通过RRC或MAC CE向该中继设备发送时间窗重配置消息,该时间窗重配置消息用于重配置该中继设备可用的时间窗资源;
其中,该时间窗资源通过时间窗索引或时间窗bitmap指示。
通过向中继设备发送时间窗重配置消息,可重新调整中继设备可使用的时间窗资源。
下面将结合具体实施例进行说明:
实施例1:
IAB网络包括一个CU和几个DU,该CU为DIAB,该DU为IAB,DIAB和IAB都是独立式基站。
在本公开实施例中,CU可配置好IAB网络中每个DU的资源,并下发给DU。该配置的资源包括时域资源和频率资源。
例如,CU可通过信令,向DU提前指示用于backhaul传输的资源集合。
该信令可以是PDCCH或L2信令,例如MAC-CE或RRC信令等。信令中携带的资源,可以使用资源索引指示,或者使用资源bitmap指示。
例如,该信令可指示未来一个时间窗口time window内用于backhaul传输的时间资源time resource集合,包括如下至少一种:
下行回传时间资源(DL backhaul time resource),即DU在DL backhaul time resource集合内需要接收CU的信号;
上行回传时间资源(UL backhaul time resource),即DU被允许在UL backhaul time resource集合内向CU发送信号;
时间窗口(Time window)内未指示用于bakchaul传输的time resource集合。应理解,对于未指示用于bakchaul传输的time resource集合DU不需要与CU进行收/发信号。
当然,应理解,上述信令中,还可进一步指示如下至少一种内容:
对于一个FDD DL载波(carrier),CU可指示一个time resource为DL backhaul,or DL non-backhaul;
对于一个FDD DL carrier,donor gNB可指示一个time resource为UL  backhaul或为UL non-backhaul;
对于一个TDD carrier,CU可指示一个time resource为DL backhaul或为UL backhaul,or non-backhaul。
特别地,对于一个non-backhaul time resource,CU可以进一步指示该time resource DL time resource,UL time resource,可变的DL/UL time resource。
当然,应理解上述time window可以是预定义的配给DU,例如等于一个或多个无线帧(radio frame)周期,或者由CU下DU配置。
此外,若需要重配时间窗(time window),CU可通过RRC或MAC CE信令向DU指示。指示的方式可以是基于time window index或time window bitmap。
另外,根据backhaul时延和DU的内部处理延时,DU需要提前X时间(X单位为slot或symbol)获知一个time resource是否被用于DL backhaul,or UL backhaul,or non-backhaul。
其中,DU处理时间有DU评估,backhaul时延由CU和/或DU评估。
当然,应理解,如果CU使用bitmap方法采纳类似于MBFSN子帧配置方法。CU把time resource和time window配置为离散的bitmap用MAC-CE或RRC信令下发给DU。
前述方法只是对回传的时间资源进行配置。在具体的应用中,还可对回传的频域资源进行配置,或者同时对回传的时间资源和频域资源进行配置,本公开实施例对此不作限定。
相应地,DU可根据CU发送的信令,获知可以用于DU与UE之间接口(access link)的time resource集合,或者DU与接入该DU的下级DU之间的接口的time resource集合。
例如,在一个FDD DL carrier上,一个DL non-backhaul time resource可以用于DU向其服务的UE发送DL信号;
例如,在一个FDD UL carrier上,一个UL non-backhaul time resource可以用于DU接收其服务UE发送的UL信号;
例如,在一个TDD carrier上,DU可以自行确定一个non-backhaul time resource用于access link DL传输,或access link UL传输。
此外,可选地,DU可以根据信令通知,确定一个non-backhaul time resource用于access link DL传输或access link UL传输。
当然,应理解,如果DU支持bitmap指示,则DU可根据CU在bitmap中被置为1的比特位,获取可使用的time resource和time window。该可使用的time resource和time window配置包括backhaul和access link资源。
实施例2:
DIAB中包括CU和至少一个DU,IAB中包括CU和至少一个DU。
此时,DIAB集中配置time resource集合和time window的资源,并下发至DIAB的DUs和其它IAB的CU。每个IAB的CU下发给对应的IAB下的DU。DIAB为DIAB的DUs配置资源、DIAB为其它IAB的CU配置资源,以及IAB的CU为对应的IAB下的DU配置资源的方法,与前一个实施例的配置类似,不再赘述。
可选地,DAIB可和IAB先协商time resource和time window的资源。例如,DAIB根据每个IAB下的DU资源需求情况配置。然后,每个IAB和DIAB下发配置资源给相关DU。
当然,应理解,虽然前述具体实施例1和2中的中继资源仅以time resource和time window的资源为例,在实际的应用,中继资源还可包括频域上的资源、空口上的资源,等等。本公开实施例对此不作限制。
图8是本公开的一个实施例中继资源配置的方法流程图。该方法应用于中继设备。如图8所示,该方法可包括:
S810,接收中继资源配置消息。
其中,该中继资源配置消息携带该中继设备的时间窗资源信息、backhaul资源信息和access link资源信息中的至少一种;
S820,基于该中继资源配置消息,配置该中继设备的backhaul资源和/或access link资源。
本公开实施例中,中继设备通过接收中继资源配置消息,并基于中继资源配置消息配置中继设备的中继资源,从而能够保证中继设备的中继资源的正常配置和使用,避免中继设备的网络资源的拥塞和干扰,提高中继通信的鲁棒性。
可选地,在一些实施例中,该中继设备为独立式IAB设备,该中继设备接入的目标设备为该IAB设备接入的DIAB设备。
或者,可选地,在一些实施例中,该中继设备为IAB的分布单元DU,该目标设备为该IAB的集中单元CU。
或者,可选地,在一些实施例中,该中继设备为DIAB的DU,该目标设备为该DIAB的CU。
或者,可选地,在一些实施例中,该中继设备为IAB中的CU,该目标设备为该IAB接入的DIAB的CU。
可选地,在一些实施例中,如果该中继设备为IAB中的CU,该目标设备为该IAB接入的DIAB的CU,则在步骤S810之前,该方法还包括:
向该目标设备发送该IAB的中继资源需求信息,该中继资源需求信息用于该目标设备协调该目标设备下的DU和/或IAB的中继资源配置。
本公开实施例中,通过向目标设备发送中继资源需求信息,从而可以请求目标设备基于中继设备的继资源需求配置中继资源,进而能够使得目标设备协调该目标设备下的DU和/或IAB的中继资源配置。
可选地,在一些实施例中,该中继设备的backhaul资源包括如下至少一种:
时间窗口内该目标设备到该中继设备的backhaul资源;
时间窗口内该中继设备到该目标设备的backhaul资源。
进一步地,在一些实施例中,步骤S820具体可实现为:
如果该中继资源配置消息中携带时间窗口内该目标设备到该中继设备的第一backhaul资源信息,则基于该第一backhaul资源信息,配置中继设备的下行backhaul资源。
或者,进一步地,在一些实施例中,步骤S820具体可实现为:如果该中继资源配置消息中携带时间窗口内该中继设备到该目标设备的第二backhaul资源信息,则基于该第二backhaul资源信息,配置中继设备的上行backhaul资源。
可选地,在一些实施例中,该中继设备的access link资源包括:
时间窗口内未指示用于backhaul传输的资源;
接入该中继设备的终端设备到该中继设备的access link资源;
该中继设备到接入该中继设备的终端设备的access link资源;
接入该中继设备的下级中继设备到该中继设备的backhaul资源;
该中继设备到该下级中继设备的backhaul资源。
进一步地,在一些实施例中,步骤S820具体可实现为:
如果该中继资源配置消息中携带时间窗口内未指示用于backhaul传输的资源信息,则基于该时间窗口内未指示用于backhaul传输的资源信息,配置中继设备的access link资源。
或者,可选地,在一些实施例中,步骤S820具体可实现为:
如果该中继资源配置消息中携带接入该中继设备的终端设备到该中继设备的第一access link资源信息,则基于该第一access link资源信息,配置该中继设备的上行access link资源。
或者,可选地,在一些实施例中,步骤S820具体可实现为:
如果该中继资源配置消息中携带该中继设备到接入该中继设备的终端设备的第二access link资源信息,则基于该第二access link资源信息,配置该中继设备的下行access link资源。
或者,可选地,在一些实施例中,步骤S820具体可实现为:
如果该中继资源配置消息中携带接入该中继设备的下级中继设备到该中继设备的第三backhaul资源信息,基于该第三backhaul资源信息,配置该下级中继设备的上行backhaul资源。
或者,可选地,在一些实施例中,步骤S820具体可实现为:
如果该中继资源配置消息中携带该中继设备到该下级中继设备的第四backhaul资源信息,基于该第四backhaul资源信息,配置该下级中继设备的下行backhaul资源。
更进一步地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息中配置的第一资源的载波类型为频分复用FDD下行载波,且该中继资源配置消息还指示该第一资源的时域资源为下行回传时域资源,则配置该第一资源为该中继设备的下行回传时域资源。
或者,更进一步地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息中配置的第二资源的载波类型为频分复用FDD下行载波,且该中继资源配置消息还指示该第二资源的时域资源为下行非回传时域资源,则配置该第二资源为该中继设备的下行非回传时域资源。
或者,更进一步地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息中配置的第三资源的载波类型为FDD上行载波,且该中继资源配置消息还指示该第三资源的时域资源为上行回传时域资源,则配置该第三资源为该中继设备的上行回传时域资源。
或者,更进一步地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息中配置的第四资源的载波类型为FDD上行载波,且该中继资源配置消息还指示该第四资源的时域资源为上行非回传时域资源,则配置该第四资源为该中继设备的上行非回传时域资源。
或者,更进一步地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息中配置的第五资源的载波类型为时分复用TDD载波,且该中继资源配置消息还指示该第五资源的时域资源为上行回传时域资源,则配置该第五资源为该中继设备的上行回传时域资源。
或者,更进一步地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息中配置的第六资源的载波类型为时分复用TDD载波,且该中继资源配置消息还指示该第六资源的时域资源为下行回传时域资源,则配置该第六资源为该中继设备的下行回传时域资源。
或者,更进一步地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息中配置的第七资源的载波类型为时分复用TDD载波,且该中继资源配置消息还指示该第七资源的时域资源为非回传时域资源,则配置该第七资源为该中继设备的access link时域资源。
特别地,在一些实施例中,步骤S820具体还可实现为:
如果该中继资源配置消息指示该第七资源的时域资源为非回传时域资源,则配置该第七资源为该中继设备的下行access link时域资源、上行access link时域资源或上下行可变的access link时域资源。
本公开实施例中的中继设备执行的方法,可参考IAB的DU在实施例1中执行的方法,或者实现DIAB的DU或IAB的CU在实施例2中执行的方 法,不再赘述。
图9是本公开的一个实施例设备900的结构示意图。该设备900是中继设备接入的设备。如图9所示,设备900可包括:
第一发送模块910,用于向中继设备发送中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、backhaul资源信息和access link资源信息中的至少一种。
本公开实施例中,通过向中继设备发送中继资源配置消息,从而能够保证中继设备的中继资源的正常配置和使用,避免中继设备的网络资源的拥塞和干扰,提高中继通信的鲁棒性。
可选地,在一些实施例中,该设备900为独立式DIAB设备,该中继设备为独立式IAB设备。
可选地,在一些实施例中,该设备900为IAB的CU,该中继设备为该IAB的DU。
可选地,在一些实施例中,该设备900为DIAB的CU,该中继设备为该DIAB的DU。
可选地,在一些实施例中,该设备900为DIAB的CU,该中继设备为接入该DIAB的IAB中的CU。
可选地,在一些实施例中,该设备900可包括确定模块920,基于该DIAB的IAB上报的中继资源需求信息,确定该DIAB的DU的中继资源和/或该DIAB的IAB的中继资源。
可选地,在一些实施例中,发送中继资源配置消息的发送时间资源在该中继资源配置消息配置的最早的时间资源之前,且该发送时间资源与该最早的时间资源的时间间隔基于回传时延和该中继设备的内部处理时延确定。
进一步地,在一些实施例中,该回传时延是由该设备900和/或该中继设备评估确定的。
应理解,该中继设备的内部处理时延由该中继设备的内部处理能力、算法等决定。
此外,该回传时延可以由该设备900评估确定,或者由中继设备评估确定,或者由设备和中继设备共同评估确定。
可选地,在一些实施例中,该中继设备的backhaul资源包括如下至少一种:
时间窗口内该设备900到该中继设备的backhaul资源;
时间窗口内该中继设备到该设备900的backhaul资源。
可选地,在一些实施例中,该中继设备的access link资源包括:
时间窗口内未指示用于backhaul传输的资源;
接入该中继设备的终端设备到该中继设备的access link资源;
该中继设备到接入该中继设备的终端设备的access link资源;
接入该中继设备的下级中继设备到该中继设备的backhaul资源;
该中继设备到该下级中继设备的backhaul资源。
可选地,在一些实施例中,如果该中继资源配置消息中配置的第一资源的载波类型为FDD下行载波,该中继资源配置消息还指示该第一资源的时域资源为下行回传时域资源或下行非回传时域资源。
或者,可选地,在一些实施例中,如果该中继资源配置消息中配置的第二资源的载波类型为FDD上行载波,该中继资源配置消息还指示该第二资源的时域资源为上行回传时域资源或上行非回传时域资源。
或者,可选地,在一些实施例中,如果该中继资源配置消息中配置的第三资源的载波类型为TDD载波,该中继资源配置消息还指示该第三资源的时域资源为上行回传时域资源、下行回传时域资源或非回传时域资源。
进一步地,在一些实施例中,如果该中继资源配置消息指示该第三资源的时域资源为非回传时域资源,则该中继资源配置消息还指示该第三资源为下行非回传时域资源、上行非回传时域资源或上下行可变的非回传时域资源。
可选地,在一些实施例中,该时间窗是预先分配给该中继设备的。
或者,可选地,在一些实施例中,该时间窗是该设备900为该中继设备配置的。
可选地,在一些实施例中,该设备900还可包括第二发送模块930,用于通过RRC或MAC CE向该中继设备发送时间窗重配置消息,该时间窗重配置消息用于重配置该中继设备可用的时间窗资源;
其中,该时间窗资源通过时间窗索引或时间窗bitmap指示。
本公开实施例提供的设备能够实现图7方法实施例中的目标设备实现的各个过程,并实现IAB的CU在实施例1中执行的方法,或者实现DIAB的CU在实施例2中执行的方法,本公开实施例在此不再赘述。
图10是本公开的一个实施例中继设备1000的结构示意图。如图10所示,中继设备1000可包括:
接收模块1010,接收中继资源配置消息,该中继资源配置消息携带该中继设备1000的时间窗资源信息、backhaul资源信息和access link资源信息中的至少一种;
配置模块1020,基于该中继资源配置消息,配置该中继设备1000的backhaul资源和/或access link资源。
本公开实施例中,中继设备通过接收中继资源配置消息,并基于中继资源配置消息配置中继设备的中继资源,从而能够保证中继设备的中继资源的正常配置和使用,避免中继设备的网络资源的拥塞和干扰,提高中继通信的鲁棒性。
可选地,在一些实施例中,该中继设备1000为独立式IAB设备,该中继设备1000接入的目标设备为该IAB设备接入的DIAB设备。
或者,可选地,在一些实施例中,该中继设备1000为IAB的分布单元DU,该目标设备为该IAB的集中单元CU。
或者,可选地,在一些实施例中,该中继设备1000为DIAB的DU,该目标设备为该DIAB的CU。
或者,可选地,在一些实施例中,该中继设备1000为IAB中的CU,该目标设备为该IAB接入的DIAB的CU。
可选地,在一些实施例中,如果该中继设备1000为IAB中的CU,该目标设备为该IAB接入的DIAB的CU,则该中继设备1000还包括:发送模块1030,用于向该目标设备发送该IAB的中继资源需求信息,该中继资源需求信息用于该目标设备协调该目标设备下的DU和/或IAB的中继资源配置。
可选地,在一些实施例中,该中继设备1000的backhaul资源包括如下至少一种:
时间窗口内该目标设备到该中继设备1000的backhaul资源;
时间窗口内该中继设备1000到该目标设备的backhaul资源。
进一步地,在一些实施例中,配置模块1020具体可用于:
如果该中继资源配置消息中携带时间窗口内该目标设备到该中继设备1000的第一backhaul资源信息,则基于该第一backhaul资源信息,配置中继设备的下行backhaul资源。
或者,进一步地,在一些实施例中,配置模块1020具体可用于:如果该中继资源配置消息中携带时间窗口内该中继设备1000到该目标设备的第二backhaul资源信息,则基于该第二backhaul资源信息,配置中继设备的上行backhaul资源。
可选地,在一些实施例中,该中继设备1000的access link资源包括:
时间窗口内未指示用于backhaul传输的资源;
接入该中继设备1000的终端设备到该中继设备1000的access link资源;
该中继设备1000到接入该中继设备1000的终端设备的access link资源;
接入该中继设备1000的下级中继设备到该中继设备1000的backhaul资源;
该中继设备1000到该下级中继设备的backhaul资源。
进一步地,在一些实施例中,配置模块1020具体可用于:
如果该中继资源配置消息中携带时间窗口内未指示用于backhaul传输的资源信息,则基于该时间窗口内未指示用于backhaul传输的资源信息,配置中继设备的access link资源。
或者,可选地,在一些实施例中,配置模块1020具体可用于:
如果该中继资源配置消息中携带接入该中继设备1000的终端设备到该中继设备1000的第一access link资源信息,则基于该第一access link资源信息,配置该中继设备1000的上行access link资源。
或者,可选地,在一些实施例中,配置模块1020具体可用于:
如果该中继资源配置消息中携带该中继设备1000到接入该中继设备1000的终端设备的第二access link资源信息,则基于该第二access link资源信息,配置该中继设备1000的下行access link资源。
或者,可选地,在一些实施例中,配置模块1020具体可用于:
如果该中继资源配置消息中携带接入该中继设备1000的下级中继设备到该中继设备1000的第三backhaul资源信息,基于该第三backhaul资源信息,配置该下级中继设备的上行backhaul资源。
或者,可选地,在一些实施例中,配置模块1020具体可用于:
如果该中继资源配置消息中携带该中继设备1000到该下级中继设备的第四backhaul资源信息,基于该第四backhaul资源信息,配置该下级中继设备的下行backhaul资源。
更进一步地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息中配置的第一资源的载波类型为频分复用FDD下行载波,且该中继资源配置消息还指示该第一资源的时域资源为下行回传时域资源,则配置该第一资源为该中继设备1000的下行回传时域资源。
或者,更进一步地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息中配置的第二资源的载波类型为频分复用FDD下行载波,且该中继资源配置消息还指示该第二资源的时域资源为下行非回传时域资源,则配置该第二资源为该中继设备1000的下行非回传时域资源。
或者,更进一步地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息中配置的第三资源的载波类型为FDD上行载波,且该中继资源配置消息还指示该第三资源的时域资源为上行回传时域资源,则配置该第三资源为该中继设备1000的上行回传时域资源。
或者,更进一步地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息中配置的第四资源的载波类型为FDD上行载波,且该中继资源配置消息还指示该第四资源的时域资源为上行非回传时域资源,则配置该第四资源为该中继设备1000的上行非回传时域资源。
或者,更进一步地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息中配置的第五资源的载波类型为时分复用TDD载波,且该中继资源配置消息还指示该第五资源的时域资源为上行回传时域资源,则配置该第五资源为该中继设备1000的上行回传时域资源。
或者,更进一步地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息中配置的第六资源的载波类型为时分复用TDD 载波,且该中继资源配置消息还指示该第六资源的时域资源为下行回传时域资源,则配置该第六资源为该中继设备1000的下行回传时域资源。
或者,更进一步地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息中配置的第七资源的载波类型为时分复用TDD载波,且该中继资源配置消息还指示该第七资源的时域资源为非回传时域资源,则配置该第七资源为该中继设备1000的access link时域资源。
特别地,在一些实施例中,配置模块1020具体还可用于:
如果该中继资源配置消息指示该第七资源的时域资源为非回传时域资源,则配置该第七资源为该中继设备1000的下行access link时域资源、上行access link时域资源或上下行可变的access link时域资源。
本公开实施例提供的中继设备1000能够实现图8方法实施例中的中继设备实现的各个过程,并实现IAB的DU在实施例1中执行的方法,或者实现DIAB的DU或IAB的CU在实施例2中执行的方法,本公开实施例在此不再赘述。
请参阅图11,图11是本公开实施例应用的设备1100的结构图,能够实现图7所示实施例方法的细节,并达到相同的效果。该设备1100是中继设备接入的设备。如图11所示,设备1100包括:处理器1101、收发机1102、存储器1103、用户接口1104和总线接口,其中:
在本公开实施例中,设备1100还包括:存储在存储器上1103并可在处理器1101上运行的计算机程序,计算机程序被处理器1101执行时实现如下步骤:
向中继设备发送中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、backhaul资源信息和access link资源信息中的至少一种。
在图11中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1101代表的一个或多个处理器和存储器1103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1102可以是多个元件,即包 括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1104还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1101负责管理总线架构和通常的处理,存储器1103可以存储处理器1101在执行操作时所使用的数据。
本公开实施例中,通过向中继设备发送中继资源配置消息,从而能够保证中继设备的中继资源的正常配置和使用,避免中继设备的网络资源的拥塞和干扰,提高中继通信的鲁棒性。本公开实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述图7方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
请参阅图12,图12是本公开实施例应用的中继设备1200的结构图,能够实现图8所示实施例方法的细节,并达到相同的效果。该设备1200是中继设备接入的设备。如图12所示,中继设备1200包括:处理器1201、收发机1202、存储器1203、用户接口1204和总线接口,其中:
在本公开实施例中,中继设备1200还包括:存储在存储器上1203并可在处理器1201上运行的计算机程序,计算机程序被处理器1201执行时实现如下步骤:
接收中继资源配置消息,该中继资源配置消息携带该中继设备的时间窗资源信息、backhaul资源信息和access link资源信息中的至少一种;
基于该中继资源配置消息,配置该中继设备的backhaul资源和/或access link资源。
在图12中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1201代表的一个或多个处理器和存储器1203代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1202可以是多个元件,即包 括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1204还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1201负责管理总线架构和通常的处理,存储器1203可以存储处理器1201在执行操作时所使用的数据。
本公开实施例中,通过向中继设备发送中继资源配置消息,从而能够保证中继设备的中继资源的正常配置和使用,避免中继设备的网络资源的拥塞和干扰,提高中继通信的鲁棒性。本公开实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述图8方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求 所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。

Claims (43)

  1. 一种中继资源的配置方法,所述方法应用于中继设备接入的目标设备,包括:
    向中继设备发送中继资源配置消息,所述中继资源配置消息携带所述中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种。
  2. 如权利要求1所述的方法,其中,
    所述目标设备为独立式宿主集成接入和回传DIAB设备,所述中继设备为独立式集成接入和回传IAB设备;或者
    所述目标设备为IAB的集中单元CU,所述中继设备为所述IAB的分布单元DU;或者
    所述目标设备为DIAB的CU,所述中继设备为所述DIAB的DU;或者
    所述目标设备为DIAB的CU,所述中继设备为接入所述DIAB的IAB中的CU。
  3. 如权利要求2所述的方法,其中,
    如果所述目标设备为DIAB的集中单元CU,在向中继设备发送中继资源配置消息之前,所述方法还包括:
    基于所述DIAB的IAB上报的中继资源需求信息,确定所述DIAB的DU的中继资源和/或所述DIAB的IAB的中继资源。
  4. 如权利要求1-3中任一项所述的方法,其中,
    发送中继资源配置消息的发送时间资源在所述中继资源配置消息配置的最早的时间资源之前,且所述发送时间资源与所述最早的时间资源的时间间隔基于回传时延和所述中继设备的内部处理时延确定。
  5. 如权利要求4所述的方法,其中,
    所述回传时延是由所述目标设备和/或所述中继设备评估确定的。
  6. 如权利要求1-3中任一项所述的方法,其中,
    所述中继设备的backhaul资源包括如下至少一种:
    时间窗口内所述目标设备到所述中继设备的backhaul资源;
    时间窗口内所述中继设备到所述目标设备的backhaul资源。
  7. 如权利要求1-3中任一项所述的方法,其中,
    所述中继设备的access link资源包括:
    时间窗口内未指示用于backhaul传输的资源;
    接入所述中继设备的终端设备到所述中继设备的access link资源;
    所述中继设备到接入所述中继设备的终端设备的access link资源;
    接入所述中继设备的下级中继设备到所述中继设备的backhaul资源;
    所述中继设备到所述下级中继设备的backhaul资源。
  8. 如权利要求1-4中任一项所述的方法,其中,
    如果所述中继资源配置消息中配置的第一资源的载波类型为频分复用FDD下行载波,所述中继资源配置消息还指示所述第一资源的时域资源为下行回传时域资源或下行非回传时域资源;
    如果所述中继资源配置消息中配置的第二资源的载波类型为FDD上行载波,所述中继资源配置消息还指示所述第二资源的时域资源为上行回传时域资源或上行非回传时域资源;
    如果所述中继资源配置消息中配置的第三资源的载波类型为时分复用TDD载波,所述中继资源配置消息还指示所述第三资源的时域资源为上行回传时域资源、下行回传时域资源或非回传时域资源。
  9. 如权利要求8所述的方法,其中,
    如果所述中继资源配置消息指示所述第三资源的时域资源为非回传时域资源,则所述中继资源配置消息还指示所述第三资源为下行非回传时域资源、上行非回传时域资源或上下行可变的非回传时域资源。
  10. 如权利要求1-9中任一项所述的方法,其中,
    所述时间窗是预先分配给所述中继设备的;或者
    所述时间窗是所述目标设备为所述中继设备配置的。
  11. 如权利要求10所述的方法,其中,所述方法还包括:
    通过无线资源控制RRC或媒体访问控制层控制元素MAC CE向所述中继设备发送时间窗重配置消息,所述时间窗重配置消息用于重配置所述中继设备可用的时间窗资源;
    其中,所述时间窗资源通过时间窗索引或时间窗比特图bitmap指示。
  12. 一种中继资源的配置方法,所述方法应用于中继设备,包括:
    接收中继资源配置消息,所述中继资源配置消息携带所述中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种;
    基于所述中继资源配置消息,配置所述中继设备的backhaul资源和/或access link资源。
  13. 如权利要求12所述的方法,其中,
    所述中继设备为独立式集成接入和回传IAB设备,所述中继设备接入的目标设备为所述IAB设备接入的独立式宿主集成接入和回传DIAB设备;或者
    所述中继设备为IAB的分布单元DU,所述目标设备为所述IAB的集中单元CU;或者
    所述中继设备为DIAB的DU,所述目标设备为所述DIAB的CU;或者
    所述中继设备为IAB中的CU,所述目标设备为所述IAB接入的DIAB的CU。
  14. 如权利要求13所述的方法,其中,
    如果所述中继设备为IAB中的CU,所述目标设备为所述IAB接入的DIAB的CU,在接收所述中继资源配置消息之前,所述方法还包括:
    向所述目标设备发送所述IAB的中继资源需求信息,所述中继资源需求信息用于所述目标设备协调所述目标设备下的DU和/或IAB的中继资源配置。
  15. 如权利要求12-14中任一项所述的方法,其中,
    所述中继设备的backhaul资源包括如下至少一种:
    时间窗口内所述目标设备到所述中继设备的backhaul资源;
    时间窗口内所述中继设备到所述目标设备的backhaul资源。
  16. 如权利要求15所述的方法,其中,
    基于所述中继资源配置消息,配置所述中继设备的backhaul资源和/或access link资源,包括:
    如果所述中继资源配置消息中携带时间窗口内所述目标设备到所述中继 设备的第一backhaul资源信息,则基于所述第一backhaul资源信息,配置中继设备的下行backhaul资源;或者
    如果所述中继资源配置消息中携带时间窗口内所述中继设备到所述目标设备的第二backhaul资源信息,则基于所述第二backhaul资源信息,配置中继设备的上行backhaul资源。
  17. 如权利要求12-14中任一项所述的方法,其中,
    所述中继设备的access link资源包括:
    时间窗口内未指示用于backhaul传输的资源;
    接入所述中继设备的终端设备到所述中继设备的access link资源;
    所述中继设备到接入所述中继设备的终端设备的access link资源;
    接入所述中继设备的下级中继设备到所述中继设备的backhaul资源;
    所述中继设备到所述下级中继设备的backhaul资源。
  18. 如权利要求17所述的方法,其中,
    基于所述中继资源配置消息,配置所述中继设备的backhaul资源和/或access link资源,包括:
    如果所述中继资源配置消息中携带时间窗口内未指示用于backhaul传输的资源信息,则基于所述时间窗口内未指示用于backhaul传输的资源信息,配置中继设备的access link资源;或者
    如果所述中继资源配置消息中携带接入所述中继设备的终端设备到所述中继设备的第一access link资源信息,则基于所述第一access link资源信息,配置所述中继设备的上行access link资源;或者
    如果所述中继资源配置消息中携带所述中继设备到接入所述中继设备的终端设备的第二access link资源信息,则基于所述第二access link资源信息,配置所述中继设备的下行access link资源;或者
    如果所述中继资源配置消息中携带接入所述中继设备的下级中继设备到所述中继设备的第三backhaul资源信息,基于所述第三backhaul资源信息,配置所述下级中继设备的上行backhaul资源;或者
    如果所述中继资源配置消息中携带所述中继设备到所述下级中继设备的第四backhaul资源信息,基于所述第四backhaul资源信息,配置所述下级中 继设备的下行backhaul资源。
  19. 如权利要求17所述的方法,其中,
    基于所述中继资源配置消息,配置所述中继设备的backhaul资源和/或access link资源,还包括:
    如果所述中继资源配置消息中配置的第一资源的载波类型为频分复用FDD下行载波,且所述中继资源配置消息还指示所述第一资源的时域资源为下行回传时域资源,则配置所述第一资源为所述中继设备的下行回传时域资源;或者
    如果所述中继资源配置消息中配置的第二资源的载波类型为频分复用FDD下行载波,且所述中继资源配置消息还指示所述第二资源的时域资源为下行非回传时域资源,则配置所述第二资源为所述中继设备的下行非回传时域资源;或者
    如果所述中继资源配置消息中配置的第三资源的载波类型为FDD上行载波,且所述中继资源配置消息还指示所述第三资源的时域资源为上行回传时域资源,则配置所述第三资源为所述中继设备的上行回传时域资源;或者
    如果所述中继资源配置消息中配置的第四资源的载波类型为FDD上行载波,且所述中继资源配置消息还指示所述第四资源的时域资源为上行非回传时域资源,则配置所述第四资源为所述中继设备的上行非回传时域资源;或者
    如果所述中继资源配置消息中配置的第五资源的载波类型为时分复用TDD载波,且所述中继资源配置消息还指示所述第五资源的时域资源为上行回传时域资源,则配置所述第五资源为所述中继设备的上行回传时域资源;或者
    如果所述中继资源配置消息中配置的第六资源的载波类型为时分复用TDD载波,且所述中继资源配置消息还指示所述第六资源的时域资源为下行回传时域资源,则配置所述第六资源为所述中继设备的下行回传时域资源;或者
    如果所述中继资源配置消息中配置的第七资源的载波类型为时分复用TDD载波,且所述中继资源配置消息还指示所述第七资源的时域资源为非回 传时域资源,则配置所述第七资源为所述中继设备的access link时域资源。
  20. 如权利要求19所述的方法,其中,
    基于所述中继资源配置消息,配置所述中继设备的backhaul资源和/或access link资源,还包括:
    如果所述中继资源配置消息指示所述第七资源的时域资源为非回传时域资源,则配置所述第七资源为所述中继设备的下行access link时域资源、上行access link时域资源或上下行可变的access link时域资源。
  21. 一种设备,其中,所述设备是中继设备接入的设备,包括:
    第一发送模块,用于向中继设备发送中继资源配置消息,所述中继资源配置消息携带所述中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种。
  22. 如权利要求21所述的设备,其中,
    所述设备为独立式宿主集成接入和回传DIAB设备,所述中继设备为独立式集成接入和回传IAB设备;或者
    所述设备为IAB的集中单元CU,所述中继设备为所述IAB的分布单元DU;或者
    所述设备为DIAB的CU,所述中继设备为所述DIAB的DU;或者
    所述设备为DIAB的CU,所述中继设备为接入所述DIAB的IAB中的CU。
  23. 如权利要求22所述的设备,其中,
    如果所述设备为DIAB的集中单元CU,在向中继设备发送中继资源配置消息之前,所述方法还包括:
    基于所述DIAB的IAB上报的中继资源需求信息,确定所述DIAB的DU的中继资源和/或所述DIAB的IAB的中继资源。
  24. 如权利要求21-23中任一项所述的设备,其中,
    发送中继资源配置消息的发送时间资源在所述中继资源配置消息配置的最早的时间资源之前,且所述发送时间资源与所述最早的时间资源的时间间隔基于回传时延和所述中继设备的内部处理时延确定。
  25. 如权利要求24所述的设备,其中,
    所述回传时延是由所述设备和/或所述中继设备评估确定的。
  26. 如权利要求21-23中任一项所述的设备,其中,
    所述中继设备的backhaul资源包括如下至少一种:
    时间窗口内所述设备到所述中继设备的backhaul资源;
    时间窗口内所述中继设备到所述设备的backhaul资源。
  27. 如权利要求21-23中任一项所述的设备,其中,所述中继设备的access link资源包括:
    时间窗口内未指示用于backhaul传输的资源;
    接入所述中继设备的终端设备到所述中继设备的access link资源;
    所述中继设备到接入所述中继设备的终端设备的access link资源;
    接入所述中继设备的下级中继设备到所述中继设备的backhaul资源;
    所述中继设备到所述下级中继设备的backhaul资源。
  28. 如权利要求21-24中任一项所述的设备,其中,
    如果所述中继资源配置消息中配置的第一资源的载波类型为频分复用FDD下行载波,所述中继资源配置消息还指示所述第一资源的时域资源为下行回传时域资源或下行非回传时域资源;
    如果所述中继资源配置消息中配置的第二资源的载波类型为FDD上行载波,所述中继资源配置消息还指示所述第二资源的时域资源为上行回传时域资源或上行非回传时域资源;
    如果所述中继资源配置消息中配置的第三资源的载波类型为时分复用TDD载波,所述中继资源配置消息还指示所述第三资源的时域资源为上行回传时域资源、下行回传时域资源或非回传时域资源。
  29. 如权利要求28所述的设备,其中,
    如果所述中继资源配置消息指示所述第三资源的时域资源为非回传时域资源,则所述中继资源配置消息还指示所述第三资源为下行非回传时域资源、上行非回传时域资源或上下行可变的非回传时域资源。
  30. 如权利要求21-29中任一项所述的设备,其中,
    所述时间窗是预先分配给所述中继设备的;或者
    所述时间窗是所述设备为所述中继设备配置的。
  31. 如权利要求30所述的设备,还包括:
    第二发送模块,用于通过无线资源控制RRC或媒体访问控制层控制元素MAC CE向所述中继设备发送时间窗重配置消息,所述时间窗重配置消息用于重配置所述中继设备可用的时间窗资源;
    其中,所述时间窗资源通过时间窗索引或时间窗比特图bitmap指示。
  32. 一种中继设备,包括:
    接收模块,接收中继资源配置消息,所述中继资源配置消息携带所述中继设备的时间窗资源信息、回传backhaul资源信息和接入链路access link资源信息中的至少一种;
    配置模块,基于所述中继资源配置消息,配置所述中继设备的backhaul资源和/或access link资源。
  33. 如权利要求32所述的中继设备,其中,
    所述中继设备为独立式集成接入和回传IAB设备,所述中继设备接入的目标设备为所述IAB设备接入的独立式宿主集成接入和回传DIAB设备;或者
    所述中继设备为IAB的分布单元DU,所述目标设备为所述IAB的集中单元CU;或者
    所述中继设备为DIAB的DU,所述目标设备为所述DIAB的CU;或者
    所述中继设备为IAB中的CU,所述目标设备为所述IAB接入的DIAB的CU。
  34. 如权利要求33所述的中继设备,其中,
    如果所述中继设备为IAB中的CU,所述目标设备为所述IAB接入的DIAB的CU,所述中继设备还包括:
    发送模块,用于向所述目标设备发送所述IAB的中继资源需求信息,所述中继资源需求信息用于所述目标设备协调所述目标设备下的DU和IAB的中继资源配置。
  35. 如权利要求32-34中任一项所述的中继设备,其中,
    所述中继设备的backhaul资源包括如下至少一种:
    时间窗口内所述目标设备到所述中继设备的backhaul资源;
    时间窗口内所述中继设备到所述目标设备的backhaul资源。
  36. 如权利要求35所述的中继设备,其中,
    所述配置模块具体用于:
    如果所述中继资源配置消息中携带时间窗口内所述目标设备到所述中继设备的第一backhaul资源信息,则基于所述第一backhaul资源信息,配置中继设备的下行backhaul资源;或者
    如果所述中继资源配置消息中携带时间窗口内所述中继设备到所述目标设备的第二backhaul资源信息,则基于所述第二backhaul资源信息,配置中继设备的上行backhaul资源。
  37. 如权利要求32-34中任一项所述的中继设备,其中,
    所述中继设备的access link资源包括:
    时间窗口内未指示用于backhaul传输的资源;
    接入所述中继设备的终端设备到所述中继设备的access link资源;
    所述中继设备到接入所述中继设备的终端设备的access link资源;
    接入所述中继设备的下级中继设备到所述中继设备的backhaul资源;
    所述中继设备到所述下级中继设备的backhaul资源。
  38. 如权利要求37所述的中继设备,其中,
    所述配置模块具体用于:
    如果所述中继资源配置消息中携带时间窗口内未指示用于backhaul传输的资源信息,则基于所述时间窗口内未指示用于backhaul传输的资源信息,配置中继设备的access link资源;或者
    如果所述中继资源配置消息中携带接入所述中继设备的终端设备到所述中继设备的第一access link资源信息,则基于所述第一access link资源信息,配置所述中继设备的上行access link资源;或者
    如果所述中继资源配置消息中携带所述中继设备到接入所述中继设备的终端设备的第二access link资源信息,则基于所述第二access link资源信息,配置所述中继设备的下行access link资源;或者
    如果所述中继资源配置消息中携带接入所述中继设备的下级中继设备到所述中继设备的第三backhaul资源信息,基于所述第三backhaul资源信息, 配置所述下级中继设备的上行backhaul资源;或者
    如果所述中继资源配置消息中携带所述中继设备到所述下级中继设备的第四backhaul资源信息,基于所述第四backhaul资源信息,配置所述下级中继设备的下行backhaul资源。
  39. 如权利要求37所述的中继设备,其中,
    所述配置模块还具体用于:
    如果所述中继资源配置消息中配置的第一资源的载波类型为频分复用FDD下行载波,且所述中继资源配置消息还指示所述第一资源的时域资源为下行回传时域资源,则配置所述第一资源为所述中继设备的下行回传时域资源;或者
    如果所述中继资源配置消息中配置的第二资源的载波类型为频分复用FDD下行载波,且所述中继资源配置消息还指示所述第二资源的时域资源为下行非回传时域资源,则配置所述第二资源为所述中继设备的下行非回传时域资源;或者
    如果所述中继资源配置消息中配置的第三资源的载波类型为FDD上行载波,且所述中继资源配置消息还指示所述第三资源的时域资源为上行回传时域资源,则配置所述第三资源为所述中继设备的上行回传时域资源;或者
    如果所述中继资源配置消息中配置的第四资源的载波类型为FDD上行载波,且所述中继资源配置消息还指示所述第四资源的时域资源为上行非回传时域资源,则配置所述第四资源为所述中继设备的上行非回传时域资源;或者
    如果所述中继资源配置消息中配置的第五资源的载波类型为时分复用TDD载波,且所述中继资源配置消息还指示所述第五资源的时域资源为上行回传时域资源,则配置所述第五资源为所述中继设备的上行回传时域资源;或者
    如果所述中继资源配置消息中配置的第六资源的载波类型为时分复用TDD载波,且所述中继资源配置消息还指示所述第六资源的时域资源为下行回传时域资源,则配置所述第六资源为所述中继设备的下行回传时域资源;或者
    如果所述中继资源配置消息中配置的第七资源的载波类型为时分复用TDD载波,且所述中继资源配置消息还指示所述第七资源的时域资源为非回传时域资源,则配置所述第七资源为所述中继设备的access link时域资源。
  40. 如权利要求39所述的中继设备,其中,
    所述配置模块具体用于:如果所述中继资源配置消息指示所述第七资源的时域资源为非回传时域资源,则配置所述第七资源为所述中继设备的下行access link时域资源、上行access link时域资源或上下行可变的access link时域资源。
  41. 一种设备,其中,所述设备是中继设备接入的设备,所述设备包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至11中任一项所述的方法的步骤。
  42. 一种中继设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求12至20中任一项所述的方法的步骤。
  43. 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至11中任一项所述的方法的步骤,或实现如权利要求12至20中任一项所述的方法的步骤。
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