WO2024174192A1 - 转发控制方法、信息发送方法、转发器和网络设备 - Google Patents

转发控制方法、信息发送方法、转发器和网络设备 Download PDF

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Publication number
WO2024174192A1
WO2024174192A1 PCT/CN2023/078007 CN2023078007W WO2024174192A1 WO 2024174192 A1 WO2024174192 A1 WO 2024174192A1 CN 2023078007 W CN2023078007 W CN 2023078007W WO 2024174192 A1 WO2024174192 A1 WO 2024174192A1
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Prior art keywords
indication information
ncr
repeater
indication
forwarding
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PCT/CN2023/078007
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English (en)
French (fr)
Inventor
蒋琴艳
张磊
Original Assignee
富士通株式会社
蒋琴艳
张磊
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Application filed by 富士通株式会社, 蒋琴艳, 张磊 filed Critical 富士通株式会社
Priority to PCT/CN2023/078007 priority Critical patent/WO2024174192A1/zh
Publication of WO2024174192A1 publication Critical patent/WO2024174192A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements

Definitions

  • the present application relates to the field of communication technology.
  • 5G (fifth generation mobile communication technology) systems can provide larger bandwidth and higher data rates, and can support more types of terminals and vertical services.
  • 5G systems are also deployed on new spectrum, which has significantly higher frequencies than the traditional telecommunication spectrum used by 3G and 4G systems.
  • 5G systems can be deployed in the millimeter wave band (28GHz, 38GHz, 60GHz and above, etc.).
  • 5G systems need cell coverage enhancement methods more than previous 3G and 4G systems, especially 5G systems deployed in the millimeter wave frequency band. How to better enhance the cell coverage of 5G systems has become an urgent problem to be solved.
  • traditional RF repeaters cannot exchange information with other devices (e.g. network devices/terminal devices, etc.). Specifically, in terms of reception, traditional RF repeaters do not support measurement/demodulation/decoding of forwarded signals, nor do they receive signals other than forwarded signals. In terms of transmission, traditional RF repeaters only amplify and forward signals, and do not support generating signals and sending self-generated signals. Therefore, the forwarding behavior of traditional RF repeaters is not controlled by the network (e.g., through network devices, etc.).
  • NCR network-controlled repeater
  • the switch state of a traditional repeater is usually set manually, and it cannot dynamically match the data transmission between the network device and the UE. Generally, data transmission between the network device and the UE is not carried out all the time. If the repeater is turned on when there is no network device and the UE has no data transmission, on the one hand, it will increase unnecessary power consumption, and on the other hand, it may also cause interference to other devices and reduce network throughput. Therefore, compared with the traditional RF repeater, the NCR needs to have the function of controlling the on/off of the forwarding unit. When the NCR is on, the NCR can forward the signal. However, there is no method proposed whether/how the NCR should forward when a beam failure is detected.
  • an embodiment of the present application provides a forwarding control method, an information sending method, a forwarder and a network device.
  • a repeater including:
  • a mobile terminal that performs beam failure detection
  • a forwarding unit that shuts down/does not forward in case of beam failure.
  • a network device including:
  • a sending unit which sends third indication information; before the repeater has a (applicable) backhaul link beam, or before a second time period before the repeater has a (applicable) backhaul link beam, the third indication information is not sent.
  • a communication system comprising: the repeater described in the previous aspect and/or the network device described in the previous aspect.
  • the NCR may forward or not forward, thereby matching the time domain resources/beam corresponding to the on state of the forwarding unit with the time domain resources/beam of data transmission between the network device and the terminal device, thereby saving the power consumption of the forwarder, reducing interference, and improving network throughput.
  • FIG1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG2 is a schematic diagram of a forwarding control method according to an embodiment of the present application.
  • FIG3 is a schematic diagram of a forwarding control method according to an embodiment of the present application.
  • FIG4 is a schematic diagram of a forwarding control method according to an embodiment of the present application.
  • FIG5 is a schematic diagram of a forwarding control method according to an embodiment of the present application.
  • FIG6 is a schematic diagram of an electronic device according to an embodiment of the present application.
  • FIG7 is a schematic diagram of a repeater according to an embodiment of the present application.
  • FIG8 is a schematic diagram of a method for sending information according to an embodiment of the present application.
  • FIG9 is a schematic diagram of a network device according to an embodiment of the present application.
  • 10A to 10E are schematic diagrams of a random access process according to an embodiment of the present application.
  • Figure 11 is a schematic diagram of the first MAC CE in an embodiment of the present application.
  • Figure 12 is a schematic diagram of the second MAC CE in an embodiment of the present application.
  • FIG13 is a schematic diagram of a third MAC CE according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a forwarding control method according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or time order of these elements, etc., and these elements should not be limited by these terms.
  • the term “and/or” includes any one and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having”, etc. refer to the existence of the stated features, elements, components or components, but do not exclude the existence or addition of one or more other features, elements, components or components.
  • the term “communication network” or “wireless communication network” may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.
  • LTE Long Term Evolution
  • LTE-A enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • communication between devices in the communication system may be carried out according to communication protocols of any stage, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G
  • 2.75G 3G
  • 4G 4G
  • 4.5G and future 5G
  • NR New Radio
  • the term "network device” refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • the network device may include, but is not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc. Station Controller) and so on.
  • Base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), IAB host, etc., and may also include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relays or low-power nodes such as femto, pico, etc.
  • base station may include some or all of their functions, and each base station may provide communication coverage for a specific geographical area.
  • the term “cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” refers to, for example, a device that accesses a communication network through a network device and receives network services, and may also be referred to as "terminal equipment” (TE).
  • the terminal equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a user, a subscriber station (SS), an access terminal (AT), a station, and the like.
  • Terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDA, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.
  • PDA personal digital assistants
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • laptop computers cordless phones
  • smart phones smart watches, digital cameras, etc.
  • the terminal device can also be a machine or device for monitoring or measuring, such as but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device to device (D2D) terminal, machine to machine (M2M) terminal, and so on.
  • MTC machine type communication
  • D2D device to device
  • M2M machine to machine
  • FIG1 is a schematic diagram of an NCR of an embodiment of the present application.
  • NCR 102 is configured between a network device 101 and a terminal device 103.
  • NCR 102 may include the following two modules/components: a mobile terminal (NCR-MT) of the repeater and a forwarding unit (NCR-Fwd) of the repeater; NCR-Fwd may also be referred to as a routing unit (NCR-RU) of the NCR.
  • NCR-MT is used to communicate with the network device (interact information), and NCR-Fwd is used to forward signals between the network device and the terminal device.
  • NCR-MT and NCR-Fwd are functional entities, and their functions may be implemented by the same or different hardware modules.
  • the NCR of the embodiment of the present application may have three links: a control link (C-link), a backhaul link (or backhaul link, BH link) for forwarding, and an access link (AC link, also known as NCR-UE link).
  • C-link control link
  • BH link backhaul link
  • AC link also known as NCR-UE link
  • the C-link is used for communication between the NCR and the network device.
  • the BH link is used for the forwarder to receive the signal to be forwarded from the network device, or to forward the signal to the network device. Sends signals from terminal devices.
  • AC link is used by the repeater to forward signals from network devices to terminal devices, or to receive signals to be forwarded from terminal devices.
  • NCR-MT communicates with network devices through C-link; NCR-Fwd forwards signals through BH link and AC link.
  • a repeater can communicate with a network device, and the repeater can receive a communication channel/signal sent by the network device, and demodulate/decode the channel/signal, thereby obtaining information sent by the network device to the repeater.
  • the signal processing process is hereinafter referred to as "communication”.
  • the repeater can also forward a channel/signal transmitted between a network device and a terminal device.
  • the repeater does not demodulate/decode the channel/signal, but can perform amplification and other processing.
  • the signal processing process is hereinafter referred to as "forwarding".
  • "Communication” and “forwarding” are collectively referred to as "transmission”.
  • sending or receiving on an AC (or BH) link can be equivalent to “forwarding on an AC (or BH) link
  • sending or receiving on a control link can be equivalent to "communicating on a control link”.
  • the above terms are for convenience of explanation only and do not constitute a limitation on the present application.
  • sending unit can be interchangeable with “forwarding behavior”.
  • the repeater can also be expressed as a network controlled repeater (NCR), a repeater, a RF repeater, a repeater, a RF repeater; or it can also be expressed as a repeater node, a repeater node, a repeater node; or it can also be expressed as an intelligent repeater, an intelligent repeater, an intelligent repeater, an intelligent repeater node, an intelligent repeater node, an intelligent repeater node, etc., but the present application is not limited to this.
  • NCR network controlled repeater
  • the network device may be a device of the service cell of the terminal device, or a device of the cell where the repeater is located, or a device of the service cell of the repeater, or a parent node (Parent node) of the repeater.
  • the present application does not impose any restriction on the name of the repeater. As long as the device can realize the above functions, it is included in the scope of the repeater of the present application.
  • the high-level signaling may be, for example, radio resource control (RRC) signaling;
  • RRC signaling may include, for example, an RRC message (RRC message), for example, a master information block (MIB), system information (system information), a dedicated RRC message; or an RRC information element (RRC information element, RRC IE); or an information field included in an RRC message or an RRC information element (or an information field included in an information field).
  • RRC signaling may also be, for example, a media access control layer (Medium Access Control, MAC) signaling; or a MAC control element (MAC control element, MAC CE).
  • MAC media access control layer
  • MAC control element MAC control element
  • a plurality refers to at least two, or two or more.
  • predefined means that it is specified in the protocol or determined according to the rules specified in the protocol, and no additional configuration is required.
  • Configuration/instruction refers to the direct or indirect configuration of the network device through high-level signaling and/or physical layer signaling.
  • Physical layer signaling refers to, for example, control information carried by a physical control channel (DCI) or control information carried by a sequence, but is not limited thereto. It can be configured/indicated by introducing high-layer parameter configuration/indication in high-layer signaling, and high-layer parameters refer to information fields and/or information elements (IE) in high-layer signaling.
  • DCI physical control channel
  • IE information elements
  • An embodiment of the present application provides a forwarding control method, which is described from the perspective of a forwarder.
  • FIG. 2 is a schematic diagram of a forwarding control method according to an embodiment of the present application. As shown in FIG. 2 , the method includes:
  • the mobile terminal of the repeater performs beam failure detection
  • the forwarding unit of the forwarder is turned off/does not forward.
  • FIG2 is only a schematic illustration of the embodiment of the present application, but the present application is not limited thereto.
  • the execution order between the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above FIG2.
  • the mobile terminal of the repeater (hereinafter referred to as NCR-MT) and the forwarding unit of the repeater (NCR-Fwd) are both functional entities in the repeater, and the mobile terminal of the repeater and the forwarding unit of the repeater can both be referred to as repeaters.
  • the NCR-MT includes one service cell (Pcell) or multiple service cells, and the mobile terminal of the repeater performs beam failure detection on the first cell, and the first cell is the main cell Pcell or PScell or Scell.
  • Pcell service cell
  • the mobile terminal of the repeater performs beam failure detection on the first cell
  • the first cell is the main cell Pcell or PScell or Scell.
  • the NCR-MT performs BFD for the first cell, and the network device configures the NCR with a beam failure detection reference signal (SSB or CSI-RS).
  • SSB beam failure detection reference signal
  • the SSB-based beam failure detection is based on the SSB associated with the initial DL BWP, and can be configured for the initial DL BWP and the DL BWP containing the SSB associated with the initial DL BWP.
  • beam failure detection can only It is performed based on CSI-RS.
  • NCR/NCR-MT MAC entity
  • BFI_COUNTER first counter
  • the beamFailureDetectionTimer is started, and the BFI_COUNTER is incremented by 1.
  • BFI_COUNTER When the value of BFI_COUNTER is greater than or equal to the configured threshold beamFailureInstanceMaxCount, if the first cell is an SCell, the NCT-MT is triggered to recover the beam failure for the first cell, otherwise, a random access process is performed on the SpCell (including Pcell and/or PScell, the first cell). If the beamFailureDetectionTimer expires or if the upper layer related to the first cell reconfigures the beamFailureDetectionTimer, threshold or reference signal for BFD, the BFI_COUNTER is set to 0.
  • the method may further include: the repeater (NCR/NCR-MT) performs beam failure recovery (BFR), for example, performing BFR for the first cell.
  • the repeater NCR/NCR-MT
  • BFR beam failure recovery
  • the beam failure recovery includes: performing random access, such as initiating random access in the first cell, where the random access is used for beam failure recovery; or, sending SR and/or MAC CE for BFR (to the second cell, where the second cell is the serving cell).
  • the BFR process is used to indicate (to the network device) a new SSB or CSI-RS, and the NCR performs random access according to the beam failure recovery configuration information configured by the network device, including non-contention random access (CFRA RACH) or contention random access (CBRA RACH).
  • CFRA RACH non-contention random access
  • CBRA RACH contention random access
  • it includes two interactions between the network device and the NCR-MT (4-step RA).
  • the NCR-MT initiates a random access request (MSG1, including sending a random access preamble, or sending a physical random access channel PRACH), and receives a random access response (MSG2) fed back by the network device.
  • MSG1 including sending a random access preamble, or sending a physical random access channel PRACH
  • MSG2 random access response
  • the NCR-MT sends information including an identifier to the network device (MSG3), and receives MSG4 fed back by the network device; or the random access can also be a 2-step random access (2-step RA), that is, the original MSG1 and MSG3 are merged into a new MSGA, and MSG2 and MSG4 are merged into MSGB.
  • 2-step random access 2-step random access
  • Pcell/PScell For Pcell/PScell (SpCell): a random access procedure is initiated in the first cell (Pcell/PScell (SpCell)).
  • the NCR triggers beam failure recovery by initiating a random access procedure on the Pcell/PScell (SpCell); selects a suitable beam to perform beam failure recovery (if the network device has provided dedicated random access resources for certain beams, the NCR will give priority to these beams); if the random access procedure involves contention-based random access, in the BFR MAC CE Includes indication of beam failure on Pcell/PScell (SpCell).
  • Non-PScell beam failure is detected in the first cell (SCell), and beam failure recovery is triggered by initiating the transmission of BFR MAC CE for the SCell; a suitable beam is selected for the SCell (if available) and indicated in the BFR MAC CE together with the information of beam failure.
  • a PDCCH is received indicating an uplink grant (UL grant) for a new transmission of the HARQ process for the transmission of the BFR MAC CE, the beam failure recovery of the SCell is considered complete.
  • the random access process includes 4-stepRA (4-step RA type) and/or 2-stepRA (2-step RA type) for contention random access, and/or 4-stepRA (4-step RA type) and/or 2-stepRA (2-step RA type) for non-contention random access.
  • Figure 10A is a schematic diagram of CBRA of 4-stepRA type in an embodiment of the present application.
  • NCR in the first step (MSG1), NCR sends a random access preamble to the network device, in the second step (MSG2), receives the RAR returned by the network device, in the third step (MSG3), then sends a scheduling transmission to the network device, and in the fourth step (MSG4), receives the contention resolution message sent by the network device.
  • Figure 10B is a schematic diagram of CBRA of 2-stepRA type in an embodiment of the present application.
  • NCR sends a random access preamble and PUSCH load (MSGA) to the network device, and receives a contention resolution message (MSGB) sent by the network device.
  • FIG10C is a schematic diagram of CFRA of the 4-stepRA type embodiment of the present application.
  • the network device allocates a random access preamble (MSG0) to the NCR, the NCR sends a random access preamble (MSG1) to the network device, and then receives a RAR (MSG2) returned by the network device.
  • FIG10D is a schematic diagram of CFRA of the 2-stepRA type embodiment of the present application. As shown in FIG10D , the network device allocates a random access preamble and PUSCH (MSG0) to the NCR, the NCR sends a random access preamble and PUSCH load (MSGA) to the network device, and then receives a RAR (MSG2) returned by the network device.
  • MSG0 random access preamble and PUSCH
  • MSGA random access preamble and PUSCH load
  • FIG. 10E is a schematic diagram of the random access process of an embodiment of the present application. As shown in Figure 10E, the NCR sends a random access preamble and PUSCH load (MSGA) to the network device, and upon receiving a FALLBACK indication, sends a scheduling transmission to the network device, and receives a contention resolution message sent by the network device.
  • MSGA random access preamble and PUSCH load
  • beam failure recovery success includes: for CFRA, NCR-MT detects DCI (format) scrambled by C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space (SS, first SS described below) provided by recoverySearchSpaceId (or, in other words, a PDCCH transmission is received in the SS, and the PDCCH transmission is related to C-RNTI or MCS-C-RNTI or RNTI for NCR).
  • DCI format
  • MCS-C-RNTI or RNTI for NCR in the search space (SS, first SS described below) provided by recoverySearchSpaceId (or, in other words, a PDCCH transmission is received in the SS, and the PDCCH transmission is related to C-RNTI or MCS-C-RNTI or RNTI for NCR).
  • a first PDCCH is received (the first PDCCH is related to C-RNTI or MCS-C-RNTI or RNTI for NCR (addressed to), for example, in CFRA, the first PDCCH (NCR/NCR-MT) sends MsgA or PRACH and is received during the RAR window), and/or, (in the beam failure recovery, or for the beam failure recovery, or for the initialization of the beam failure recovery) (non-competitive) random access procedure is (successfully) completed (the Random Access procedure successfully completed), and/or beam failure recovery is (successfully) completed.
  • the NCR-MT detects a DCI (format) scrambled by C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space provided by recoverySearchSpaceId (or, in other words, a PDCCH transmission is received at the SS, and the PDCCH transmission is related to (addressed to) C-RNTI or MCS-C-RNTI or RNTI for NCR), and/or, the first PDCCH is received (the first PDCCH is related to (addressed to) C-RNTI or MCS-C-RNTI or RNTI for NCR, for example, in 2-step CBRA, the first PDCCH is sent after (NCR/NCR-MT) sends MsgA in 4-step In CBRA, the first PDCCH is received during the contention resolution window after (NCR/NCR-MT) sends Msg.3), contention resolution is successful, and/or (in the beam failure recovery, or used for the beam failure recovery, or initialized for
  • a CORESET corresponding to the search space provided by recoverySearchSpaceId can be used to monitor the PDCCH in the CORESET (for example, the first PDCCH, but not limited to this).
  • CBRA/CFRA 4-step type monitor PDCCH within the ra-ResponseWindow, when the MAC entity sends a non-contention random access preamble for beam failure recovery indication, start the ra-ResponseWindow in the beam failure recovery configuration BeamFailureRecoveryConfig from the first PDCCH occurrence during/after the end of the random access preamble transmission, and while the ra-ResponseWindow is running, monitor the PDCCH transmission on the search space indicated by the recoverySearchSpaceId of the SpCell (identified by C-RNTI or MCS-C-RNTI or RNTI for NCR).
  • the corresponding PDCCH (the first PDCCH, in the search space provided by recoverySearchSpaceId) is received.
  • the random access process is successful, or the beam failure recovery is successful.
  • a notification of receiving the first PDCCH is received from a lower layer on the service cell that sends the random access preamble.
  • the first PDCCH is related to (addressed to) the C-RNTI.
  • the PDCCH used to schedule the PDSCH carrying the RAR the PDCCH used to schedule the PDSCH carrying the RAR
  • the received TB is decoded successfully: If the Random Access procedure is initiated for Beam Failure Recovery for the SpCell and SpCell BFR CBRA is configured with a value of true: Indicate to the multiplexing and assembly entity (sent in MSG3) to include a BFR MAC CE or a truncated BFR MAC CE in the subsequent uplink transmission. Obtain the MAC PDU to be transmitted from the multiplexing and assembly entity and store it in the MSG3 buffer.
  • the MAC entity should start the ra-ContentionResolutionTimer and restart the ra-ContentionResolutionTimer for each HARQ retransmission in the first symbol after the end of MSG3 transmission, monitoring the PDCCH while the ra-ContentionResolutionTimer is running (in the search space provided by recoverySearchSpaceId), regardless of any measurement gaps that may occur.
  • the ra-ContentionResolutionTimer is running (in the search space provided by recoverySearchSpaceId)
  • the previously sent MSG3 includes a MAC CE of the C-RNTI
  • the first PDCCH is related to (addressed to) the C-RNTI or MCS-C-RNTI or the RNTI for the NCR
  • the random access procedure is initiated for SpCell beam failure recovery
  • the random access procedure (contention resolution) is considered successful, or the beam failure recovery is successful
  • the ra-ContentionResolutionTimer is stopped, and the temporary C-RNTI is discarded.
  • PDCCH is monitored in msgB-ResponseWindow, and upon receiving a notification from a lower layer that the first PDCCH on SpCell is received ((or in msgB-ResponseWindow) (in the search space provided by recoverySearchSpaceId) the first PDCCH is received), and the previously sent MSGA includes a MAC CE of C-RNTI, the random access process is considered to be successful, or the beam failure recovery is successful, or the random access response is considered to be received successfully, and the msgB-ResponseWindow is stopped.
  • the forwarding unit of the repeater in the event of a beam failure (e.g., may include detecting a beam failure (in the first cell) When a beam fails and/or after a beam failure is detected), the forwarding unit of the repeater is (expected to) shut down/not forward, or, in other words, is not (allowed to) turn on/forward).
  • the first cell beam fails, forwarding is not performed until BFR succeeds. After BFR succeeds (until a new configuration is received/a new configuration is applied), the first beam is used for forwarding. After receiving the new configuration/applying the new configuration, the second beam is used for forwarding; or, for example, after the first cell beam fails, (regardless of whether BFR succeeds or after BFR succeeds), forwarding is not performed until a new configuration is received and/or a new configuration is applied (that is, after the first cell beam fails, even if BFR succeeds (or after BFR succeeds), forwarding is not performed until a new configuration is received and/or a new configuration is applied). After receiving the new configuration and/or applying the new configuration, forwarding is performed using the first beam, the second beam, or the third beam, as described below.
  • the NCR-Fwd is (expected to) turn off/not forward (or, is not allowed to turn on/forward). That is, in beam failure recovery (random access process), until the BFR succeeds, the NCR-Fwd does not forward.
  • the first beam is used for forwarding in NCR-Fwd.
  • NCR-Fwd adopts a first beam for forwarding
  • the first time period after the first PDCCH (received) is 28 symbols after the last symbol of the first PDCCH (received)
  • the first PDCCH (received) is in a search space set provided by recoverySearchSpaceId for detecting a DCI (format) scrambled by C-RNTI or MCS-C-RNTI for CRC (for example, the first PDCCH carries the DCI (format), but is not limited thereto.)
  • the first PDCCH is used to determine the success of beam failure recovery and/or to determine the completion of a random access procedure.
  • the first beam is described below.
  • the first beam is a backhaul link beam, which refers to a beam used for the backhaul link when the forwarding unit of the forwarder performs forwarding or a beam used by the network device side of the forwarder. That is, the forwarding unit of the forwarder uses the first beam to forward signals to the network device, or forwards signals from the network device side (that is, for the backhaul link or for forwarding) and/or the first beam is a control link beam (that is, for the control link or for communication/information interaction between the NCR/NCR-MT and the network device).
  • a backhaul link beam refers to a beam used for the backhaul link when the forwarding unit of the forwarder performs forwarding or a beam used by the network device side of the forwarder. That is, the forwarding unit of the forwarder uses the first beam to forward signals to the network device, or forwards signals from the network device side (that is, for the backhaul link or for forwarding) and/or the first beam is
  • the first beam and the beam used in (the beam failure recovery, or used for the beam failure recovery, or initialized for the beam failure recovery) (the most recent) random access attempt/process (or the successful random access attempt/process) (including (based on) the most recent PRACH
  • the first beam includes a downlink beam (or a receiving beam, used to receive downlink signals and/or channels (sent to NCR/NCR-MT and/or to be forwarded by (NCR/NCR-Fwd)) from a network device and/or an uplink beam (or a transmitting beam, used to send uplink signals and/or channels (of NCR/NCR-MT and/or from UE/(forwarded by NCR/NCR-Fwd) to the network device) to the network device).
  • a downlink beam or a receiving beam, used to receive downlink signals and/or channels (sent to NCR/NCR-MT and/or to be forwarded by (NCR/NCR-Fwd)) from a network device and/or an uplink
  • the first beam includes: the same antenna port quasi-collocation parameters as the ones associated with index q new , or, in other words, a (downlink) beam determined by the QCL parameters. And/or, a same spatial filter as for the last PRACH transmission, or, in other words, an (uplink) beam determined by the spatial filter, and/or, a (downlink and/or uplink) beam determined by the SSB associated with the RO (RACH occasion) of the last PRACH transmission (located/used), and/or, a downlink beam for receiving the first PDCCH, and/or an uplink beam for sending the last PRACH (transmission).
  • the first beam is predefined (eg, specified by a protocol or determined according to a predefined rule) or indicated.
  • the first beam is used for forwarding with or without reception or transmission of the NCR-MT/control link.
  • NCR-Fwd uses the first beam for forwarding, or, when the BFR is successful, or after the first time period after the first PDCCH, before the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication) is received, and/or, before the first indication information and/or the second indication information and/or the third indication information (or the access link beam configuration/indication) is received, and/or, before the first indication information and/or the second indication information and/or the third indication information (or the beam indicated by the above indication information is applied), NCR-Fwd uses the first beam for forwarding.
  • the first indication information control link beam indication/configuration
  • the second indication information or the backhaul link beam configuration/indication
  • the third indication information or the access link beam configuration/indication
  • Beam configuration/indication and/or, applying the first indication information and/or the second indication information and/or the third indication information (or applying the beam indicated by the above indication information) (or applying the beam indicated by the above indication information), after which NCR-Fwd uses the second beam for forwarding.
  • NCR-Fwd uses the first beam or the third beam for forwarding.
  • NCR uses the predefined first beam or the third beam described later for forwarding.
  • the above indication information and the second beam and the third beam will be described later.
  • the NCR-Fwd (is expected) to be turned off/not forwarded (or, not allowed to be turned on/forwarded) before the beam failure recovery is successful.
  • NCR-Fwd uses the second beam for forwarding.
  • NCR-Fwd uses the first beam or the third beam for forwarding.
  • NCR uses the predefined first beam or the third beam described later for forwarding.
  • the first indication information is used to indicate/configure a control link beam.
  • the first indication information is used to configure and/or activate TCI state/SRI (SpatialRelationInfo) (for PDSCH and/or PDCCH and/or PUCCH and/or SRS). It includes RRC signaling, and/or MAC CE, and/or DCI.
  • TCI state/SRI SepatialRelationInfo
  • the first indication information includes a MAC CE activation command for TCI state (or an indication for activating TCI state), or the information fields of tci-StatesToAddModList (-r17/r18) and tci-StatesToReleaseList (-r17/r18) in PDSCH-Config;
  • the MAC CE can be a Unified TCI States Activation/Deactivation MAC CE or a TCI States activation/deactivation user-specific PDSCH MAC CE or a TCI state indication user-specific PDCCH MAC CE.
  • the first indication information includes PUCCH-SpatialRelationInfo (-r17/r18) for PUCCH resources and/or a (MAC CE) activation command for PUCCH-SpatialRelationInfo (-r17/r18), for example, the activation command includes PUCCH spatial relationship activation/deactivation MAC CE (PUCCH spatial relation Activation/Deactivation MAC CE), or, enhanced PUCCH spatial relationship activation/deactivation MAC CE (Enhanced PUCCH Spatial Relation Activation/Deactivation MAC CE), or, multi-TRP PUCCH repeated PUCCH spatial relationship activation/deactivation MAC CE (PUCCH spatial relationship activation/deactivation MAC CE).
  • PUCCH spatial relationship activation/deactivation MAC CE PUCCH spatial relation activation/deactivation MAC CE
  • enhanced PUCCH spatial relationship activation/deactivation MAC CE Enhanced PUCCH Spatial Relation Activation/Deactivation MAC CE
  • tci-StatesToAddModList(-r17/r18) and/or tci-StatesToReleaseList(-r17/r18) in/PDSCH-Config for PDSCH configuration
  • dl-OrJointTCI-StateList(-r17/r18) and/or dl-OrJointTCI-StateToAddModList(-r17/r18) and/or dl-OrJointTCI-StateToReleaseList(-r17/r18) in/PDSCH-Config for PDSCH configuration
  • ul-TCI-ToAddModList and/or, the second DCI (for example, DCI format 1_1/1_2, etc.) (used to indicate (or indicate) unified TCI).
  • the second indication information is used to indicate a backhaul link beam.
  • the second indication information is MAC signaling.
  • the second indication information is used to indicate the TCI state for the backhaul link from the first TCI state set, or to indicate the TCI state for the backhaul link from the second TCI state set, or to indicate the SRI for the backhaul link from the first SRI set.
  • the control link applies the Rel-15/16 beam indication framework
  • the second indication information indicates the TCI state used for the return link from the first TCI state set
  • the second indication information indicates the SRI used for the return link from the first SRI set.
  • the second indication information indicates the TCI state used for the return link from the second TCI state set.
  • the second indication information indicates the Unified TCI state.
  • the unified TCI State type must indicate uplink and downlink joint (joint) or can indicate uplink and downlink joint (joint) or separate (separate), where separate indicates that the service cell is configured with the dl-OrJointTCI-StateList of the downlink TCI state and the ul-TCI-ToAddModList of the uplink TCI state.
  • Joint indicates that the service cell is configured with the dl-OrJointTCI-StateList of the uplink and downlink joint TCI state.
  • the second indication information includes one or more MAC CEs.
  • the second indication information includes a first MAC CE for indicating a downlink beam of a backhaul link.
  • the first MAC CE indicates the TCI state for the backhaul link from the first TCI state set. It includes at least a first information field for indicating a TCI state (e.g. TCI state ID), including or excluding a second information field for indicating a serving cell (e.g. serving cell ID) and/or a third information field for indicating a downlink BWP (e.g. BWP ID).
  • the second indication information includes a second MAC CE for indicating an uplink beam of the backhaul link.
  • the second MAC CE indicates the SRI for the backhaul link from the first SRI set, including a first information field for indicating the SRI (e.g. SRI ID), including or excluding a second information field for indicating a serving cell (e.g. serving cell ID) and/or a third information field for indicating a UL BWP (e.g. BWP ID).
  • the first information field indicates the SRI for the backhaul link by indicating pucch-SpatialRelationInfoId.
  • the second indication information includes a third MAC CE for indicating an uplink beam and/or a downlink beam of the backhaul link.
  • the third MAC CE indicates the TCI state for the backhaul link from the second TCI state set. It includes a first information field for indicating the TCI state (e.g. TCI state ID), including or excluding a second information field for indicating a serving cell (e.g. serving cell ID) and/or a third information field for indicating a BWP (e.g. BWP ID).
  • the first information field indicates a Unified TCI state, for example, indicating the TCI state for the backhaul link from the dl-OrJointTCI-StateList.
  • the above first MAC CE, second MAC CE, and third MAC CE may be the same MAC CE or different MAC CEs, and the embodiment of the present application is not limited thereto.
  • the first MAC CE (NCR backhaul link downlink beam activation/deactivation MAC CE), which is identified by a MAC subheader with eLCID (reference to Table 6.2.1-1b), has a fixed size of 8 bits.
  • FIG11 is a schematic diagram of the first MAC CE of an embodiment of the present application.
  • the TCI state ID field (7 bits) indicates the TCI-StateID of the TCI state configured by tci-StatesToAddModList and tci-StatesToReleaseList in the PDSCH-Config of the activated BWP
  • the A/D field (1 bit) indicates whether to activate or deactivate the indicated TCI state. When this field is set to 1, it indicates activation, otherwise it indicates deactivation.
  • the second MAC CE (NCR backhaul link uplink beam activation/deactivation MAC CE), which is identified by a MAC subheader with eLCID (reference to Table 6.2.1-1b), and has a fixed size of 8 bits.
  • FIG12 is a schematic diagram of the second MAC CE of an embodiment of the present application.
  • the Si information field configures the PUCCH spatial relationship information SpatialRelationInfoId (reference TS 38.331) for the activated BWP.
  • Si indicates the activation status of PUCCH SpatialRelationInfo, and PUCCH SpatialRelationInfoId is equal to i+1.
  • the Si field is set to 1 to indicate that the PUCCH spatial relationship information should be activated (PUCCH SpatialRelationInfoId is equal to i+1).
  • the Si field is set to 0 to indicate that the PUCCH spatial relationship information (PUCCH SpatialRelationInfoId is equal to i+1) is deactivated. Only a single PUCCH spatial relationship information configured in the activated BWP can be activated at a time.
  • FIG13 is a schematic diagram of the second MAC CE of an embodiment of the present application, as shown in FIG13:
  • This field indicates whether the TCI codepoint has two TCI states or a single TCI state. If the P field is set to 1, it means that the TCI codepoint includes both the DL TCI state and the UL TCI state. If the P field is set to 0, it means that the TCI codepoint includes only the DL/Joint TCI state or the UL TCI state.
  • This field indicates whether the TCI State ID in the same octet is used for DL/Joint TCI State or UL TCI State. If this field is set to 1, the TCI State ID in the same (corresponding) octet is used for DL/Joint TCI State. If this field is set to 0, the TCI State ID in the same (corresponding) octet is used for UL TCI State.
  • -TCI State ID This field indicates the TCI identified by the TCI State ID configured in the activated DL/UL BWP specified in TS 38.331. If D/U is set to 1, a 7-bit length TCI State ID is used, i.e., the TCI StateId configured in dl-OrJoint-TCStateList-r17 of the activated DL BWP specified in TS 38.331. If D/U is set to 0, the most significant bit of the TCI State ID is considered as a reserved bit, and the remaining 6 bits indicate the UL TCIState ID configured in the activated UL BWP specified in TS 38.331.
  • This field indicates whether to activate or deactivate the indicated TCI state. If this field is set to 1, it indicates activation, otherwise it indicates deactivation.
  • the third indication information is used to indicate an access link beam.
  • the third indication information includes: a periodic/semi-static (or provided by RRC signaling) access link beam indication (hereinafter referred to as the first beam indication information), an activation command (MAC CE/DCI) (for activating the access link beam indication), information for configuring/indicating (NCR monitoring) the first DCI, and the first DCI (for indicating the access link beam).
  • the first beam indication information may be a newly introduced information field (high-level parameter) in the RRC signaling, and the new information field includes one or more periodic beam indications (first beam indications) for the access link.
  • Each first beam indication includes a forwarding resource list, each of which includes a fourth information field indicating the access link beam and a fifth information field for indicating the time domain resource, and the sixth information field includes the duration information and/or offset information of the time domain resource within a period;
  • the first beam indication may also include period information (for all time domain resources indicated by the first beam indication information) and/or priority information;
  • the first beam indication information may also include a sixth information field for indicating the first subcarrier spacing, and the indicated first subcarrier spacing is for all time domain resources indicated by the first beam indication information, for example, all time domain resources indicated by the first beam indication information are related to the first subcarrier spacing, and the correlation includes that the duration information and/or offset information of each time domain resource is related to the first subcarrier spacing, and the time unit of
  • the network device may send one or more first beam indication information to the NCR, and each first beam indication information includes one or more of the fourth information field, the fifth information field, the sixth information field, the period information, and the priority information.
  • each first beam indication information includes one or more of the fourth information field, the fifth information field, the sixth information field, the period information, and the priority information.
  • one or more lists may be configured, wherein a list includes the above-mentioned first beam indication information, thereby supporting one or more first beam indication information.
  • the RRC signaling includes an RRC Reconfiguration message, and/or an RRC Release message, and/or a first RRC message, wherein the first RRC message is an NCR-dedicated RRC message.
  • the first RRC message may include other information in addition to the above-mentioned first beam indication information, such as relevant configurations for the fourth information field and the fifth information field in the first DCI described later (such as the time domain resource list configuration described below), but the embodiments of the present application are not limited to this.
  • the NCR after the NCR receives the first beam indication information, it also needs to receive another indication. Only then can the corresponding access link beam be used for forwarding in the corresponding indicated time domain resources according to the first beam indication information. Alternatively, after receiving the first beam indication information, the NCR can use the corresponding access link beam for forwarding in the corresponding indicated time domain resources according to the first beam indication information without receiving another indication.
  • whether the NCR supports the first beam indication information is optional (may be supported or not), or mandatory (supported), or conditionally mandatory (for example, supported when conditions (for example, working frequency band FR2) are met).
  • the first DCI format is used for access link beam indication.
  • the downlink control information of the first DCI format is not used for scheduling PDSCH or PUSCH, or the downlink control information of the first DCI format can also be used for scheduling PDSCH or PUSCH.
  • the first DCI format can be a newly introduced DCI format (e.g. DCI format 2_8, or 2_9 or 2_10, etc.), or it can be an existing DCI format (e.g. 1_1, or 2_0, etc.), the first DCI format is the same as or different from the second DCI format (the existing DCI format currently also supports the functions in the embodiments of the present application), and the embodiments of the present application are not limited to this.
  • downlink control information in the first DCI format or “downlink control information using the first DCI format” or “DCI in the first DCI format” or “first DCI” may also be replaced by "first DCI format”.
  • the third indication information may include one or more fourth information fields for indicating a beam and one or more fifth information fields for indicating time domain resources, and the forwarding unit of the forwarder does not forward outside the time domain resources indicated (by the third indication information).
  • the third indication information is the first DCI
  • a fourth information field is used to indicate an access link beam index, or at most one access link beam index, or multiple access link beam indexes.
  • the access link beam index may include a beam index corresponding to an access link beam (or (actual) physical beam) and/or a beam index that does not correspond to a beam (or (actual) physical beam).
  • the beam index range is predefined and/or configured/indicated by high-level signaling.
  • all beam indexes within the beam index range are predefined or configured/indicated by high-level signaling, or a portion of the beam indexes are predefined and a portion of the beam indexes are configured/indicated by high-level signaling.
  • the beam index of the corresponding beam is predefined, and the beam index of the non-corresponding beam is configured/indicated by high-level signaling, but is not limited thereto.
  • a fifth information field is used to indicate a time domain resource index, or indicates at most one time domain resource index, or indicates multiple time domain resource indexes.
  • the index may also be replaced by a sequence number.
  • the fifth information field corresponds to a time domain resource table.
  • the time domain resource table is predefined and/or configured by the aforementioned first RRC message or other RRC messages.
  • the time domain resource table includes one or more time domain resource configurations, and the time domain resource (TDRA) table (or simply referred to as the TDRA table) includes at least one row (column).
  • TDRA time domain resource
  • a row (column) is referred to as a TDRA configuration
  • a TDRA configuration includes one time domain resource or multiple time domain resources or does not include a time domain resource.
  • a time domain resource is continuous or discontinuous.
  • a time domain resource is defined by, for example, one or more of the following parameters: a time slot offset K 3 , a symbol offset S, a length L (duration) for determining the time domain resource, and a subcarrier spacing. These parameters are predefined and/or configured by high-level signaling. Among them, the time slot offset K 3 refers to the offset value between the starting time slot of the time domain resource or the first time slot corresponding/overlapping/associated with the starting time slot of the time domain resource and the reference point.
  • the above reference point can be determined based on at least the time slot or symbol where the DCI carrying the second beam indication information is located or the time slot or symbol where the PUCCH/PUSCH of the HARQ feedback of the DCI or PDCCH carrying the second beam indication information is located.
  • a time domain resource configuration includes multiple time domain resources
  • the reference points of the time slot offsets of different time domain resources are the same (for example, they are all determined based on at least the time slot or symbol where the DCI of the second beam indication information is located) or different (for example, for the first time domain resource: at least based on the time slot or symbol where the DCI of the second beam indication information is located, for the subsequent time domain resources, at least based on the time slot or symbol where the previous time domain resource is located).
  • the symbol offset S refers to the offset value between the first symbol of the time domain resource and the boundary/starting symbol/first symbol of the aforementioned starting time slot, or relative to the starting symbol/first symbol of the DCI or PDCCH/PDCCH MO that carries the second beam indication information.
  • the length L of the time domain resource indicates the number of symbols contained in the time domain resource.
  • the symbol offset S and/or the length L of the time domain resource for example, must ensure that the configured time domain resources are in the same time slot, or the configured time domain resources can be in the same time slot or across time slots.
  • the number of time domain resources included in each configuration in the time domain resource table is the same or different.
  • the time domain resources in a configuration can be defined in the form of a list or sequence.
  • an IE is introduced, and the IE includes the parameters for defining a time domain resource.
  • a configuration includes a list or sequence, and the list or sequence includes one or more fields corresponding to the above IE.
  • the fifth information field may indicate one time domain resource, multiple time domain resources, or no time domain resource by indicating the configuration in the time domain resource table.
  • the time domain resource index may include a time domain resource index corresponding to a time domain resource and/or a time domain resource index not corresponding to a time domain resource.
  • the time domain resource index is an index or sequence number of a column (row) configuration in the time domain resource table corresponding to the fifth information field. If all configurations in the time domain resource table include time domain resources, Then the time domain resource index only includes the time domain resource index corresponding to the time domain resource; if there are configurations including time domain resources and configurations not including time domain resources in the time domain resource table, then the time domain resource index includes the time domain resource index corresponding to the time domain resource and the time domain resource index not corresponding to the time domain resource.
  • all configurations in the time domain resource list include time domain resources. If all values in the time domain resource index correspond to the configurations in the time domain resource table, then the time domain resource index only includes the time domain resource index corresponding to the time domain resource; if some values in the time domain resource index correspond to the configurations in the time domain resource table, and some values do not correspond to any configuration in the time domain resource table, then the time domain resource index includes the time domain resource index corresponding to the time domain resource and the time domain resource index not corresponding to the time domain resource. Among them, the time domain index not corresponding to the time domain resource is, for example, predefined and/or configured by high-level signaling.
  • the second beam is a backhaul link beam, which refers to the beam used by the backhaul link when the forwarding unit of the forwarder performs forwarding or the beam used by the network device side of the forwarder. That is, the forwarding unit of the forwarder uses the first beam to forward signals to the network device, or forwards signals from the network device side (that is, for the backhaul link or for forwarding) and/or the second beam is a control link beam (that is, for the control link or for communication/information interaction between the NCR/NCR-MT and the network device).
  • a backhaul link beam refers to the beam used by the backhaul link when the forwarding unit of the forwarder performs forwarding or the beam used by the network device side of the forwarder. That is, the forwarding unit of the forwarder uses the first beam to forward signals to the network device, or forwards signals from the network device side (that is, for the backhaul link or for forwarding) and/or the second beam is a control link beam (that is, for the control link
  • the second beam includes a downlink beam (or a receiving beam for receiving downlink signals and/or channels from the network device (sent to the NCR/NCR-MT and/or to be forwarded by (NCR/NCR-Fwd)) and/or an uplink beam (or a transmitting beam for sending uplink signals and/or channels (NCR/NCR-MT and/or from the UE/(forwarded by the NCR/NCR-Fwd) to the network device) to the network device.
  • a downlink beam or a receiving beam for receiving downlink signals and/or channels from the network device (sent to the NCR/NCR-MT and/or to be forwarded by (NCR/NCR-Fwd)
  • an uplink beam or a transmitting beam for sending uplink signals and/or channels (NCR/NCR-MT and/or from the UE/(forwarded by the NCR/NCR-Fwd) to the network device) to the network device.
  • the second beam may be determined according to the first indication information and/or a predefined rule.
  • the second beam includes: a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and/or an (uplink) beam determined by the spatial relationship of the PUCCH with the smallest (PUCCH resource) ID (in the configured CORESET for the first serving cell).
  • a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and/or an (uplink) beam determined by the spatial relationship of the PUCCH with the smallest (PUCCH resource) ID (in the configured CORESET for the first serving cell).
  • the CORESET with the smallest ID is the CORESET with ID at the first DL BWP and/or the first time position.
  • the CORESET may be CORESET#0, the first DL BWP is in the Pcell, and/or the first DL BWP is the initial DL BWP or the default DL BWP or the activated DL BWP (or the DL BWP that initiates/performs beam failure recovery/corresponding random access process), the first time position includes: the NCR-MT (for example, in the activated BWP of the serving cell (for example, the Pcell)/in the above-mentioned first DL BWP) monitors the latest/latter time slots (the latest slot in which one or more CORESETs are monitored by the NCR-MT, or the time slot in which the latest/last NCR-MT monitors (one or more) CORESETs).
  • the NCR-MT for example, in the activated BWP of the serving cell (for example, the Pcell)/in the above-mentioned first DL BWP
  • monitors the latest/latter time slots the latest slot in which one or more
  • the PUCCH with the minimum PUCCH resource ID is the PUCCH with the lowest PUCCH resource ID at a first UL BWP and/or a second time position
  • the first UL BWP is in the Pcell
  • the first UL BWP is an initial UL BWP or a default UL BWP or an activated UL BWP (or a UL BWP that initiates/performs a beam failure recovery/corresponding random access procedure)
  • the second time position includes: the latest/latter time slot in which PUCCH is transmitted by the NCR-MT (for example, within the activated BWP of the serving cell) (the latest slot in which PUCCH is transmitted by the NCR-MT, or the time slot in which the latest/last NCR-MT transmits PUCCH).
  • the second beam comprises: (by) an indicated unified TCI (determined downlink and/or uplink beam).
  • the (downlink) beam is determined by the QCL assumption of the CORESET with the smallest ID and/or the (uplink) beam is determined by the spatial relationship of the PUCCH with the smallest (PUCCH resource) ID (in the configured CORESET for the first service cell);
  • the Rel-17 beam indication frame i.e., the unified TCI frame
  • the downlink and/or uplink beams are determined by the indicated unified TCI (unified TCI).
  • the second beam is indicated by the second indication information.
  • the second beam may be determined according to the second indication information, for example, according to the first information field in the second indication information, which will not be described in detail here.
  • the method further comprises:
  • the NCR-MT does not monitor or receive the first DCI (format) and/or the second DCI.
  • the description of the first DCI and the second DCI is as described above and will not be repeated here.
  • the NCR-MT does not monitor the first DCI (format).
  • the NCR-MT monitors a first DCI (format), for example, monitors the first DCI format using a first beam.
  • the NCR-MT does not monitor the first DCI (format).
  • the NCR-MT monitors the first DCI (format).
  • the NCR/NCR-MT (configured/instructed) monitors the first DCI in the above SS (first SS) (search space provided by recoverySearchSpaceId) or the second SS (another SS).
  • the CORESET associated with the second SS and the first SS is the same or different.
  • the NCR/NCR-MT does not monitor the first DCI.
  • the NCR-MT (using the first beam) monitors the first DCI (format). Until the first indication information (control link beam indication/configuration) and/or the second indication information (or the backhaul link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication) is received, and/or the first indication information and/or the second indication information and/or the third indication information (or the beam indicated by the above indication information is applied) (or before this), the NCR-MT does not monitor the first DCI (format).
  • the NCR-MT monitors the first DCI (format). Regarding how to monitor DCI/PDCCH, reference may be made to the description of the aforementioned embodiments.
  • the method further comprises:
  • the NCR-MT monitors a first DCI (format), where the first DCI is used to indicate an access link beam.
  • the description of the first DCI is as described above and will not be repeated here.
  • the NCR/NCR-MT (in the first SS/second SS) monitors the first DCI, and when/after receiving the first DCI, the random access process (successfully) is completed and/or the beam failure recovery (successfully) is completed.
  • the PDCCH corresponding to the first DCI is one of the aforementioned first PDCCHs, which can be encrypted using the RNTI for the NCR.
  • the NCR-MT monitors the first DCI (format).
  • the NCR-MT monitors a first DCI before the beam failure and/or the beam failure recovery.
  • the NCR may not forward, thereby matching the time domain resources/beam corresponding to the on state of the forwarding unit with the time domain resources/beam of data transmission between the network device and the terminal device, thereby saving the power consumption of the forwarder, reducing interference, and improving network throughput.
  • the embodiment of the present application provides a forwarding control method, which is described from the perspective of a forwarder, and the parts repeated with the previous embodiment are not indicated again.
  • FIG3 is a schematic diagram of a forwarding control method according to an embodiment of the present application. As shown in FIG3 , the method includes:
  • the mobile terminal of the repeater performs beam failure detection
  • the forwarding unit of the forwarder performs forwarding.
  • FIG. 3 is only a schematic illustration of the embodiment of the present application, but the present application is not limited thereto.
  • the execution order between the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 3.
  • the implementation of 301 may refer to 201 and will not be described in detail here.
  • the method may also include: the repeater (NCR/NCR-MT) performs beam failure recovery (BFR), the implementation of which may refer to the aforementioned embodiment and will not be described in detail here.
  • the repeater NCR/NCR-MT
  • BFR beam failure recovery
  • the forwarding unit of the repeater in the case of beam failure, the forwarding unit of the repeater (is expected/allowed) to forward (or can (or is allowed) to turn on/perform forwarding).
  • a third beam is used for forwarding.
  • the third beam is a backhaul link beam, and the third beam is indicated and/or determined before the beam fails, that is, in the case of a first cell beam failure, the repeater uses the backhaul link beam before the beam fails for forwarding.
  • the backhaul link beams before the beam failure include:
  • the backhaul link may be determined according to a predetermined rule 1, for example, a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and/or an (uplink) beam determined by the spatial relationship of the PUCCH with the smallest (PUCCH resource) ID (in the CORESET configured for the first serving cell); or, the backhaul link beam may be indicated by the indication information,
  • a predetermined rule 1 for example, a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and/or an (uplink) beam determined by the spatial relationship of the PUCCH with the smallest (PUCCH resource) ID (in the CORESET configured for the first serving cell); or, the backhaul link beam may be indicated by the indication information.
  • the implementation method of the indication information may refer to the second indication information, which will not be described in detail here.
  • the backhaul link may be determined according to predetermined rule 1, or the backhaul link may be determined according to predetermined rule 2, for example, (determined downlink and/or uplink beam) by the indicated unified TCI (e.g., indicated by the first indication information).
  • the backhaul link beam may be indicated by the indication information, and the implementation of the indication information may refer to the second indication information, which will not be described in detail herein.
  • the access link beam (the fourth beam) before the beam failure can be configured by RRC signaling and/or activated by access link beam indication activation signaling, or only indicated by DCI (for example, the first DCI).
  • the NCR-Fwd uses the third beam for forwarding. That is, in beam failure recovery (random access process), until the BFR succeeds, the NCR-Fwd uses the third beam for forwarding. For example, after the BFR succeeds, the NCR-Fwd uses the third beam for forwarding. Or for example, after the first time period after the first PDCCH, the NCR-Fwd uses the third beam for forwarding, and the first PDCCH and the first time period are as described above and are not indicated here.
  • the NCR-Fwd uses the third beam for forwarding, or, when the BFR is successful, or after the first time period after the first PDCCH, before the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication) are received, and/or, before the first indication information and/or the second indication information and/or the third indication information (or the access link beam configuration/indication) are received, and/or, before the first indication information and/or the second indication information and/or the third indication information (or the beam indicated by the above indication information is applied), the NCR-Fwd uses the third beam for forwarding.
  • the second beam After receiving the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication), and/or applying the first indication information and/or the second indication information and/or the third indication information (or applying the beam indicated by the above indication information) (or applying the beam indicated by the above indication information), the second beam is used for forwarding in NCR-Fwd.
  • the above indication information and the second beam will be described in the previous embodiment and will not be described here. Elaborate.
  • the second beam is used for forwarding in NCR-Fwd.
  • NCR uses the predefined first beam or still uses the third beam for forwarding.
  • the method further comprises:
  • the NCR-MT does not monitor or receive the first DCI (format) and/or the second DCI.
  • the description of the first DCI and the second DCI is as described above and will not be repeated here.
  • the NCR-MT does not monitor the first DCI (format).
  • the NCR-MT monitors a first DCI (format), for example, monitors the first DCI format using a first beam.
  • the NCR-MT does not monitor the first DCI (format) until receiving the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication), and/or applying the first indication information and/or the second indication information and/or the third indication information (or applying the beam indicated by the above indication information) (or before that).
  • the NCR-MT monitors the first DCI (format).
  • the method further comprises:
  • the NCR-MT monitors a first DCI (format), where the first DCI is used to indicate an access link beam.
  • first DCI format
  • the description of the first DCI is as described above and will not be repeated here.
  • the NCR-MT monitors the first DCI (format).
  • the NCR-MT monitors a first DCI before the beam failure and/or the beam failure recovery.
  • the NCR can perform forwarding, thereby matching the time domain resources/beam corresponding to the forwarding unit on state with the time domain resources/beam of data transmission between the network device and the terminal device, thereby saving the power consumption of the forwarder, reducing interference, and improving network throughput.
  • the forwarding unit of the repeater in the case of beam failure, is turned off/does not forward, and in the embodiment of FIG. 3, in the case of beam failure, the forwarding unit of the repeater forwards.
  • the embodiment of the present application is not limited to this.
  • the forwarding unit of the repeater in the case of beam failure, based on NCR implementation, is turned off/does not forward or forwards, which will not be described one by one here.
  • the embodiment of the present application provides a forwarding control method, which is described from the perspective of a forwarder, and the parts repeated with the previous embodiment are not indicated again.
  • FIG. 4 is a schematic diagram of a forwarding control method according to an embodiment of the present application. As shown in FIG. 4 , the method includes:
  • NCR-MT performs beam failure (or link failure) detection
  • the NCR-MT performs BFR
  • the implementation of 401-402 is as described in the previous embodiment and will not be repeated here.
  • the previous embodiment describes the processing of NCR-Fwd after BFR succeeds.
  • NCR-Fwd does not forward.
  • the random access process fails and NCR considers the radio link failure (RLF).
  • NCR does not forward, thereby matching the time domain resources/beam corresponding to the on state of the forwarding unit with the time domain resources/beam of data transmission between the network device and the terminal device, thereby saving the power consumption of the forwarder, reducing interference, and improving network throughput.
  • NCR-Fwd the premise for NCR-Fwd to forward signals in a time period includes: for this time period, NCR has both an access link beam and an applicable return link beam.
  • the standard has agreed that the on state "ON" of NCR-Fwd is indicated (implicitly) by the access link beam indication. That is, in the time domain resource (time period) indicating the access link beam, NCR-Fwd is on and should forward signals.
  • the NCR receives an access link beam indication before there is an applicable backhaul link beam, but there is no corresponding method for the NCR to handle this situation.
  • an embodiment of the present application provides a forwarding control method, which is explained from the perspective of a forwarder, and the parts that are repeated with the previous embodiments are not indicated again.
  • FIG. 5 is a schematic diagram of a forwarding control method according to an embodiment of the present application. As shown in FIG. 5 , the method includes:
  • the forwarder receives third indication information
  • the repeater Before the repeater has a (suitable) backhaul link beam, the repeater is not expected to receive the third indication information and/or the repeater is not (expected to) apply the third indication information.
  • the method before the repeater has a (suitable) backhaul link beam, the method comprises:
  • the embodiment of the present application provides a forwarding control method, which is described from the perspective of a forwarder, and the parts repeated with the previous embodiment are not indicated again.
  • FIG. 14 is a schematic diagram of a forwarding control method according to an embodiment of the present application. As shown in FIG. 14 , the method includes:
  • the mobile terminal of the repeater performs beam failure detection
  • the mobile terminal of the repeater monitors or does not monitor the first DCI and/or the second DCI, wherein the first DCI is used to indicate an access link beam and the second DCI is used to indicate a unified TCI (status).
  • the implementation of 1401 - 1402 may refer to the aforementioned embodiments and will not be described in detail here.
  • NCR can perform BFD.
  • the forwarder can use the aforementioned third beam (and/or fourth beam) for forwarding.
  • NCR-Fwd The signal can be forwarded (using the third beam for forwarding) or not forwarded according to the embodiment in Figure 2 or Figure 3, and the NCR-MT initiates BFR.
  • BFR fails, the NCR-Fwd does not forward according to the embodiment in Figure 4.
  • the NCR-Fwd uses the second beam for forwarding.
  • BFD/BFR is mainly described for a single TRP case, but the embodiments of the present application are not limited thereto, for example, multiple TRPs may also be described.
  • the NCR/NCR-MT does not support (is not expected to be configured with) multi-TRP operation or BFD in multi-TRP operation or two sets of BFD reference signals.
  • NCR/NCR-MT (is configured) multi-TRP operation or BFD or two sets of BFD reference signals in multi-TRP operation.
  • the network device configures two sets (sets) of BFD reference signals for the NCR, and before the configured timer expires, when the number of BFIs from the physical layer associated with the group corresponding to the BFD reference signal reaches a configured threshold, the NCR considers that the beam has failed for one TRP/BFD reference signal group.
  • the NCR After detecting beam failure for the BFD-RS group for the serving cell (first cell), the NCR triggers beam failure recovery by initiating transmission of a BFR MAC CE for the BFD-RS group; selects a suitable beam for the BFD-RS group (if available), and indicates in the BFR MAC CE for the BFD-RS group whether the suitable (new) beam is found or not along with the information about the beam failure in the BFR MAC CE for this BFD-RS set.
  • NCR After simultaneously detecting beam failures of two BFD-RS groups of PCell, NCR triggers beam failure recovery by initiating a random access procedure on the PCell; selects a suitable beam for each failed BFD-RS (if any), and indicates in the BFR MAC CE of each failed BFD-RS group whether a suitable (new) beam is found and without information about beam failure. After completing the random access procedure, beam failure recovery of two BFD-RS groups of PCell is considered complete.
  • An embodiment of the present application provides a repeater, which may be, for example, the aforementioned NCR, or a network device or terminal device with a forwarding function, or one or more parts or components configured in the NCR, network device or terminal device.
  • Figure 7 is a schematic diagram of a repeater according to an embodiment of the present application. Since the principle of solving the problem by the repeater is the same as the method of the embodiment of the first aspect, its specific implementation can refer to the embodiment of the first aspect, and the same contents will not be repeated.
  • the forwarder 700 of the embodiment of the present application includes: a mobile terminal 701 and a forwarding unit 702 .
  • the mobile terminal 701 and the forwarding unit 702 are functional entities, and their functions can be implemented by the same or different hardware modules.
  • a mobile terminal 701 performs beam failure detection
  • the forwarding unit 702 turns off/does not forward when the beam fails, or performs forwarding.
  • the mobile terminal 701 performs beam failure (or link failure) detection; in case of beam failure, the mobile terminal 701 performs BFR;
  • the forwarding unit 702 does not forward the message when the BFR fails.
  • the mobile terminal 701 receives the third indication information; before the repeater has a (applicable) backhaul link beam, it is not expected to receive the third indication information and/or the repeater is not (expected to) apply the third indication information.
  • the mobile terminal 701 performs beam failure (or link failure) detection.
  • the mobile terminal of the repeater monitors or does not monitor the first DCI and/or the second DCI, the first DCI is used to indicate the access link beam, and the second DCI is used to indicate the unified TCI (status).
  • the implementation of the mobile terminal 701 and the forwarding unit 702 can refer to the various embodiments of the first aspect, and will not be repeated here.
  • FIG. 7 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application is not limited to this.
  • An embodiment of the present application provides an information sending method, which is described from the perspective of a network device, and the contents that are the same as those of the embodiment of the first aspect will not be repeated.
  • FIG8 is a schematic diagram of a method for sending information according to an embodiment of the present application. As shown in FIG8 , the method includes:
  • the network device sends third indication information; before the forwarder has a (applicable) return link beam, or before a second time period before the forwarder has a (applicable) return link beam, the network device does not send the third indication information.
  • the second time period includes the time required for the forwarder to apply the third indication information.
  • the method may include:
  • the network device After the NCR beam failure is successfully recovered (in the third time period), the network device sends a first indication message and/or a second indication message and/or a third indication message to the NCR, wherein the first indication message is used to indicate/configure the control link beam, the second indication message is used to indicate the return link beam, and the third indication message is used to indicate the access link beam; for example, the third time period may be greater than or equal to the aforementioned first time period, but the embodiments of the present application are not limited to this.
  • FIG8 is only a schematic illustration of the embodiment of the present application, but the present application is not limited thereto.
  • the execution order between the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above FIG8.
  • An embodiment of the present application provides a network device.
  • Figure 9 is a schematic diagram of a network device according to an embodiment of the present application. Since the principle of solving the problem by the network device is the same as the method of the embodiment of the third aspect, its specific implementation can refer to the embodiment of the third aspect, and the same contents will not be repeated.
  • the network device 900 of the embodiment of the present application includes:
  • a sending unit 901 which sends third indication information; before the forwarder has a (applicable) backhaul link beam, or before a second time period before the forwarder has a (applicable) backhaul link beam, the third indication information is not sent;
  • the sending unit 901 sends the first indication information and/or the second indication information and/or the third indication information to the NCR after the NCR beam failure is successfully recovered (in the third time period), wherein the first indication information is used to indicate/configure the control link beam, the second indication information is used to indicate the return link beam, and the third indication information is used to indicate the access link beam.
  • the network device 900 of the present application embodiment may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.
  • FIG. 9 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • FIG1 is a schematic diagram of the communication system of the embodiment of the present application.
  • the communication system 100 includes a network device 101, a repeater 102, and a terminal device 103.
  • FIG1 only illustrates a network device, a repeater, and a terminal device as an example, but the embodiment of the present application is not limited to this.
  • existing services or future implementable services can be transmitted between the network device 101 and the terminal device 103.
  • these services may include, but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), highly reliable and low latency communication (URLLC) and vehicle-to-everything (V2X) communication, etc.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC highly reliable and low latency communication
  • V2X vehicle-to-everything
  • An embodiment of the present application also provides an electronic device, which is, for example, a repeater or a network device.
  • FIG6 is a schematic diagram of the composition of an electronic device according to an embodiment of the present application.
  • the electronic device 600 may include: a processor 66 (e.g., a central processing unit CPU) and a memory 620; the memory 620 is coupled to the processor 66.
  • the memory 620 may store various data; in addition, it may store a program 630 for information processing, and the program 630 may be executed under the control of the processor 66.
  • the processor 66 may be configured to execute a program to implement the forwarding control method as described in the embodiment of the first aspect.
  • the processor 66 may be configured to execute a program to implement the information sending method as described in the embodiment of the third aspect.
  • the electronic device 600 may further include: a transceiver 640 and an antenna 650, etc.; wherein the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that the electronic device 600 does not necessarily include all the components shown in FIG6 ; in addition, the electronic device 600 may also include components not shown in FIG6 , which may refer to the prior art.
  • An embodiment of the present application also provides a computer-readable program, wherein when the program is executed in a repeater, the program enables a computer to execute the forwarding control method described in the embodiment of the first aspect in the repeater.
  • An embodiment of the present application also provides a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the forwarding control method described in the embodiment of the first aspect in a forwarder.
  • the embodiment of the present application also provides a computer-readable program, wherein when the program is executed in a network device, The program enables the computer to execute the information sending method described in the embodiment of the third aspect in the network device.
  • An embodiment of the present application also provides a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the information sending method described in the embodiment of the third aspect in a network device.
  • the above devices and methods of the present application can be implemented by hardware, or by hardware combined with software.
  • the present application relates to such a computer-readable program, which, when executed by a logic component, enables the logic component to implement the above-mentioned devices or components, or enables the logic component to implement the various methods or steps described above.
  • the logic component is, for example, a field programmable logic component, a microprocessor, a processor used in a computer, etc.
  • the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.
  • the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figure and/or one or more combinations of the functional block diagrams may correspond to various software modules of the computer program flow or to various hardware modules.
  • These software modules may correspond to the various steps shown in the figure, respectively.
  • These hardware modules may be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).
  • FPGA field programmable gate array
  • the software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor.
  • the processor and the storage medium may be located in an ASIC.
  • the software module may be stored in a memory of a mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.
  • the functional blocks described in the drawings and/or one or more combinations of functional blocks it can be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof for performing the functions described in the present application.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field programmable gate array
  • it can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a forwarding control method applied to a forwarder, characterized in that the method comprises:
  • the mobile terminal of the repeater (for the first cell) performs beam failure detection
  • the forwarding unit of the repeater is (expected to) turn off/not forward (or, is not (allowed) to turn on/forward).
  • the first cell is a primary cell Pcell, PScell or Scell.
  • the repeater performs beam failure recovery (BFR) (for the first cell).
  • the beam failure recovery includes: performing random access (in the first cell), or sending SR and/or MAC CE for BFR (to the second cell).
  • the NCR-Fwd is (expected to) be turned off/not forwarding (or, not allowed to be turned on/forwarding).
  • first time period after the first PDCCH e.g., after 28 symbols from a last symbol of a first PDCCH reception in a search space set provided by recoverySearchSpaceId for which the UE detects a DCI format with CRC scrambled by C-RNTI or MCS-C-RNTI
  • receives the first indication information (control link beam indication/configuration) and/or the second indication information (or the backhaul link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication) and/or, applying The first indication information and/or the second indication information and/or the third indication information (or the beam indicated by the above indication information) (or before that)) are forwarded in NCR-Fwd (using the first beam).
  • a method according to any one of Notes 6 to 8, wherein the first beam is the same as the beam used in (the most recent) random access attempt/process (or a successful random access attempt/process) (including a beam determined based on the SSB associated with the RO (RACH occasion) of the most recent PRACH transmission (located/used)) (in the beam failure recovery, or used for the beam failure recovery, or initialized for the beam failure recovery).
  • the first beam includes a downlink beam (or a receiving beam, used to receive downlink signals and/or channels (sent to NCR/NCR-MT and/or to be forwarded by (NCR/NCR-Fwd)) from a network device and/or an uplink beam (or a transmitting beam, used to send uplink signals and/or channels (of NCR/NCR-MT and/or from UE/(forwarded by NCR/NCR-Fwd) to the network device) to the network device.
  • a downlink beam or a receiving beam, used to receive downlink signals and/or channels (sent to NCR/NCR-MT and/or to be forwarded by (NCR/NCR-Fwd)) from a network device and/or an uplink beam (or a transmitting beam, used to send uplink signals and/or channels (of NCR/NCR-MT and/or from UE/(forwarded by NCR/NCR-Fwd) to the network device) to the network device.
  • the first beam includes: the same antenna port quasi-collocation parameters as the ones associated with index q new ( or, the (downlink) beam determined by the QCL parameters) and/or the same spatial filter as for the last PRACH transmission (or, the (uplink) beam determined by the spatial filter), and/or, a (downlink and/or uplink) beam determined by the SSB associated with the RO (RACH occasion) of the last PRACH transmission (located/used), and/or, a downlink beam for receiving the first PDCCH, and/or an uplink beam for sending the last PRACH (transmission).
  • the first beam is used for forwarding with or without receiving or transmitting on NCR-MT/C-link.
  • the first beam is predefined (for example, specified by a protocol or determined according to a predefined rule) or indicated.
  • the first beam is a backhaul link beam (that is, used for a backhaul link or for forwarding) and/or a control link beam (that is, used for a control link or for communication/information interaction between the forwarder and the network device).
  • the NCR-Fwd is (expected to) be turned off/not forwarded (or, not allowed to be turned on/forwarded) before the beam failure recovery is successful.
  • the forwarder After receiving the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication), and/or applying the first indication information and/or the second indication information and/or the third indication information (or applying the beam indicated by the above indication information) (or applying the beam indicated by the above indication information), the forwarder (using the second beam) forwards.
  • the NCR-MT detects a DCI (format) CRC-scrambled by C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space (SS) provided by recoverySearchSpaceId (or, receives a PDCCH transmission addressed to C-RNTI or MCS-C-RNTI or RNTI for NCR in the SS), and/or receives a first PDCCH (the first PDCCH addressed to C-RNTI or MCS-C-RNTI or RNTI for NCR) RNTI related (addressed to), for example, in CFRA, the first PDCCH (NCR/NCR-MT) is received during the RAR window after sending MsgA or PRACH), and/or, (in the beam failure recovery, or for the beam failure recovery, or for the beam failure recovery initialization) (non-contention) Random Access procedure (successfully completed) (the Random Access procedure successfully completed), and/or Beam Failure Recovery is (successs
  • NCR-MT detected in the search space provided by recoverySearchSpaceId DCI (format) CRC-scrambled by C-RNTI or MCS-C-RNTI or RNTI for NCR (or, a PDCCH transmission is received at the SS, and the PDCCH transmission is related to C-RNTI or MCS-C-RNTI or RNTI for NCR (addressed to)), and/or, the first PDCCH is received (the first PDCCH is related to C-RNTI or MCS-C-RNTI or RNTI for NCR (addressed to), for example, in 2-step CBRA, the first PDCCH is received after (NCR/NCR-MT) sends Msg.A, in 4-step CBRA, the first PDCCH is received after (NCR/NCR-MT) sends Msg.3 during the contention resolution window), contention resolution is successful, and/or, (in the beam failure recovery, or for the beam failure recovery, or for the beam failure recovery initialization
  • the first indication information is used to indicate/configure a control link beam (used to configure and/or activate (for PDSCH and/or PDCCH and/or PUCCH and/or SRS) TCI state/SRI (SpatialRelationInfo). Including RRC signaling, and/or MAC CE, and/or DCI).
  • the first indication information includes:
  • MAC CE activation command for TCI state (or an activation for a TCI state) or (any parameters) tci-StatesPDCCH-ToAddList(-r17/r18) and/or tci-StatesPDCCH-ToReleaseList(-r17/r18), and/or,
  • dl-OrJointTCI-StateList(-r17/r18) and/or dl-OrJointTCI-StateToAddModList(-r17/r18) and/or dl-OrJointTCI-StateToReleaseList(-r17/r18) (in PDSCH configuration/PDSCH-Config), and/or,
  • the second DCI (for example, DCI format 1_1/1_2, etc.) (used to indicate (or indicate) unified TCI).
  • the second beam (including an uplink beam and/or a downlink beam) is determined (according to the first indication information and/or predefined rules) (or in other words, the second beam is predefined (including: determined (according to the first indication information and/or predefined rules))).
  • the indicated unified TCI (determined downlink and/or uplink beams).
  • the third indication information is used to indicate an access link beam.
  • the third indication information includes: periodic/semi-static (or provided by RRC signaling) access link beam indication, activation command (MAC CE/DCI) (for activating access link beam indication), information for configuring/indicating (NCR/NCR-MT monitoring) the first DCI, and the first DCI (for indicating the access link beam).
  • the NCR-MT does not monitor (or does not receive) the first DCI (format) and/or the second DCI, wherein the first DCI is used to indicate an access link beam.
  • the NCR-MT does not monitor the first DCI (format).
  • the NCR-MT monitors the first DCI (format).
  • the NCR-MT monitors a first DCI (format), where the first DCI is used to indicate an access link beam.
  • a forwarding control method applied to a forwarder, characterized in that the method comprises:
  • the mobile terminal of the repeater (for the first cell) performs beam failure (or link failure) detection;
  • the NCR-MT does not monitor (or does not receive) the first DCI (format) and/or the second DCI, wherein the first DCI is used to indicate an access link beam; or the NCR-MT monitors the first DCI (format), wherein the second DCI is used to indicate a unified TCI status.
  • a forwarder comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the forwarding control method as described in any one of Notes 1 to 35.
  • An information sending method applied to a network device, characterized in that the method comprises:
  • the network device sends the first indication information and/or the second indication information and/or the third indication information to the NCR after the NCR beam failure is successfully recovered (in the third time period),
  • the first indication information is used to indicate/configure a control link beam
  • the second indication information is used to indicate a return link beam
  • the third indication information is used to indicate an access link beam.
  • a network device comprising a memory and a processor, wherein the memory stores a computer program, The processor is configured to execute the computer program to implement the information sending method as described in Note 37.
  • a forwarding control method applied to a forwarder, characterized in that the method comprises:
  • the mobile terminal of the repeater (for the first cell) performs beam failure (or link failure) detection;
  • the forwarding unit of the repeater is (expected/allowed) to forward (or may (or is allowed) to turn on/perform forwarding).
  • the first cell is a Pcell, a PScell or a Scell.
  • the beam failure recovery includes: initiating random access (in the first cell), or sending SR and/or MAC CE for BFR (to the second cell).
  • the NCR-Fwd (Until the BFR succeeds (or before the BFR succeeds)), the NCR-Fwd (is expected/allowed) (adopts the third beam) for forwarding.
  • the BFR After the BFR is successful, (until the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication) is received, and/or the first indication information and/or the second indication information and/or the third indication information is applied (or the beam indicated by the above indication information is applied) (or before that)), NCR-Fwd (is expected/allowed) (using the third beam) is forwarded.
  • the first indication information control link beam indication/configuration
  • the second indication information or the return link beam configuration/indication
  • the third indication information or the access link beam configuration/indication
  • NCR-Fwd is expected/allowed
  • NCR-Fwd (expected/allowed) (using the third beam) is forwarded.
  • the forwarder After receiving the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication), and/or applying the first indication information and/or the second indication information and/or the third indication information (or applying the beam indicated by the above indication information) (or applying the beam indicated by the above indication information), the forwarder (using the second beam) forwards.
  • the NCR-MT detects a DCI (format) CRC-scrambled by C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space (SS) provided by recoverySearchSpaceId (or, receives a PDCCH transmission addressed to C-RNTI or MCS-C-RNTI or RNTI for NCR in the SS), and/or receives a first PDCCH (the first PDCCH addressed to C-RNTI or MCS-C-RNTI or RNTI for NCR) RNTI related (addressed to), for example, in CFRA, the first PDCCH (NCR/NCR-MT) is received during the RAR window after sending MsgA or PRACH), and/or, (in the beam failure recovery, or for the beam failure recovery, or for the beam failure recovery initialization) (non-contention) Random Access procedure (successfully completed) (the Random Access procedure successfully completed), and/or Beam Failure Recovery is (successs
  • the NCR-MT detects a DCI (format) CRC-scrambled by C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space provided by recoverySearchSpaceId (or, in other words, receives a PDCCH transmission at the SS, the PDCCH transmission is related to (addressed to) C-RNTI or MCS-C-RNTI or RNTI for NCR), and/or, receives a first PDCCH (the first PDCCH is related to (addressed to) C-RNTI or MCS-C-RNTI or RNTI for NCR), for example, in 2-step In CBRA, the first PDCCH is received during the contention resolution window after (NCR/NCR-MT) sends MsgA; in 4-step CBRA, the first PDCCH is received during the contention resolution window after (NCR/NCR-MT) sends Msg.3; contention resolution is successful; and/or (in the beam failure recovery, or for
  • the first indication information is used to indicate/configure the control link beam (used to configure and/or activate (for PDSCH and/or PDCCH and/or PUCCH and/or SRS) TCI state/SRI (SpatialRelationInfo). Including RRC signaling, and/or MAC CE, and/or DCI).
  • the first indication information includes:
  • MAC CE activation command for TCI state (or an activation for a TCI state) or (any parameters) tci-StatesPDCCH-ToAddList(-r17/r18) and/or tci-StatesPDCCH-ToReleaseList(-r17/r18), and/or,
  • dl-OrJointTCI-StateList(-r17/r18) and/or dl-OrJointTCI-StateToAddModList(-r17/r18) and/or dl-OrJointTCI-StateToReleaseList(-r17/r18) (in PDSCH configuration/PDSCH-Config), and/or,
  • the second DCI (for example, DCI format 1_1/1_2, etc.) (used to indicate (or indicate) unified TCI).
  • the second beam (including an uplink beam and/or a downlink beam) is determined (according to the first indication information and/or predefined rules) (or in other words, the second beam is predefined (including: determined (according to the first indication information and/or predefined rules))).
  • the indicated unified TCI (determined downlink and/or uplink beams).
  • the third indication information is used to indicate an access link beam.
  • the third indication information includes: periodic/semi-static (or provided by RRC signaling) access link beam indication, activation command (MAC CE/DCI) (for activating access link beam indication), information for configuring/indicating (NCR/NCR-MT monitoring) the first DCI, and the first DCI (for indicating the access link beam).
  • the NCR-MT does not monitor (or does not receive) the first DCI (format) and/or the second DCI, wherein the first DCI is used to indicate an access link beam.
  • the NCR-MT does not monitor the first DCI (format).
  • the NCR-MT does not monitor the first DCI (format) until receiving the first indication information (control link beam indication/configuration) and/or the second indication information (or the return link beam configuration/indication) and/or the third indication information (or the access link beam configuration/indication), and/or applying the first indication information and/or the second indication information and/or the third indication information (or applying the beam indicated by the above indication information) (or before that).
  • the NCR-MT monitors a first DCI (format), where the first DCI is used to indicate an access link beam.
  • a forwarder comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the forwarding control method as described in any one of Notes 1 to 26.
  • a forwarding control method applied to a forwarder, characterized in that the method comprises:
  • the repeater for the first cell performs beam failure (or link failure) detection
  • the mobile terminal (NCR-MT) of the repeater performs beam failure recovery (BFR).
  • the forwarding unit (NCR-Fwd) of the repeater does not forward.
  • a forwarding control method applied to a forwarder, characterized in that the method comprises:
  • the forwarder receives third indication information; or,
  • the repeater Before the repeater has a (suitable) backhaul link beam, the repeater is not expected to receive the third indication information and/or the repeater is not (expected to) apply the third indication information.
  • a forwarder comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the forwarding control method as described in Note 1, 2 or 3.
  • a method for sending information, applied to a network device characterized in that the method comprises:
  • the network device sends third indication information; or,
  • the network device Before the repeater has a (applicable) backhaul link beam, or before a second time period before the repeater has a (applicable) backhaul link beam, the network device does not send the third indication information.
  • the third indication information includes: periodic/semi-static (or provided by RRC signaling) access link beam indication, an activation command (MAC CE/DCI) (for activating the access link beam indication), information for configuring/indicating (NCR/NCR-MT monitoring) the first DCI, and the first DCI (for indicating the access link beam).
  • a network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the information sending method as described in any one of Notes 5 to 8.

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Abstract

本申请实施例提供了一种转发控制方法、信息发送方法、转发器和网络设备。所述转发器包括：移动终端，其进行波束失败（beam failure）检测；在波束失败的情况下，转发单元关闭/不进行转发。

Description

转发控制方法、信息发送方法、转发器和网络设备 技术领域
本申请涉及通信技术领域。
背景技术
与传统的3G(第三代移动通信技术)、4G(第四代移动通信技术)系统相比，5G(第五代移动通信技术)系统能够提供更大的带宽以及更高的数据率，并且能够支持更多类型的终端和垂直业务。
为此，除了传统电信频谱以外，5G系统也被部署在新频谱上，新频谱的频率明显高于3G和4G系统使用的传统电信频谱。例如，5G系统可以部署在毫米波波段(28GHz，38GHz，60GHz以及以上等等)。
根据无线信号的传播规律，其所在载波的频率越高、信号在传播过程中遇到的衰落越严重。因此，实际部署中，5G系统比以往的3G、4G系统更需要小区覆盖增强方法，特别是部署在毫米波频段的5G系统。如何更好地增强5G系统小区覆盖，成为亟待解决的问题。
为了更好的解决蜂窝移动通信系统在实际部署中的覆盖问题，采用射频转发器(RF Relay/Repeater)放大和转发终端设备(UE)与网络设备之间的通信信号，是比较常用的部署手段。射频转发器在3G系统和4G系统的实际部署中具有较为广泛的应用。通常来说，射频转发器是一种在射频域放大(amplify)和转发(forward)设备往来信号的设备。也就是说，射频转发器是一种非再生类型的中继节点，它们只是将接收到的所有信号直接放大并转发。
但传统射频转发器不能够和其他设备(e.g.网络设备/终端设备等)进行信息交互。具体地，在接收方面，传统射频转发器不支持对转发信号进行测量/解调/解码，也不接收转发信号之外的信号。在发送方面，传统射频转发器仅放大并转发信号，不支持生成信号和发送自身生成的信号。因此，传统射频转发器的转发行为不受网络(例如通过网络设备等)控制。
应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申 请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
3GPP Rel-18为了增强NR的覆盖，提出网络控制转发器(NCR，Network-controlled repeater)的方案，为网络设备与终端设备之间的信号进行转发。NCR通过控制链路可以与网络设备进行直接通信以辅助NCR的转发操作。
传统转发器的开关状态通常是人工设置的，其不能动态匹配网络设备和UE之间的数据传输。一般地，网络设备和UE之间不会时时刻刻进行数据传输，如果转发器在没有网络设备和UE没有数据传输时也处于开启状态，一方面会增加不必要的功耗，另一方面也可能对其他设备造成干扰，降低网络吞吐量。因此，与传统的RF repeater相比，NCR需要具备控制转发单元的开启/关闭的功能。NCR为开启状态时，NCR可以转发信号。但目前还没有提出在检测到波束失败的情况下NCR是否/如何进行转发的方法。
针对上述问题的至少之一，本申请实施例提供了一种转发控制方法、信息发送方法、转发器和网络设备。
根据本申请实施例的另一方面，提供一种转发器，包括：
移动终端，其进行波束失败(beam failure)检测；
转发单元，其在波束失败的情况下关闭/不进行转发。
根据本申请实施例的另一方面，提供一种网络设备，包括：
发送单元，其发送第三指示信息；在转发器具有(适用的)回程链路波束之前，或者转发器具有(适用的)回程链路波束之前的第二时间段之前，不发送所述第三指示信息。
根据本申请实施例的另一方面，提供一种通信系统，包括：前一方面所述的转发器和/或前一方面所述的网络设备。
本申请实施例的有益效果之一在于：在检测到波束失败的情况下，NCR可以进行转发或不进行转发，由此，使转发单元开启状态对应的时域资源/波束与网络设备和终端设备之间的数据传输的时域资源/波束匹配，从而节省转发器的功耗，减小干扰，提升网络吞吐量。
参照后文的说明和附图，详细公开了本申请的特定实施方式，指明了本申请的原 理可以被采用的方式。应该理解，本申请的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。在附图中：
图1是本申请实施例的通信系统的一示意图；
图2是本申请实施例的转发控制方法的一示意图；
图3是本申请实施例的转发控制方法的一示意图；
图4是本申请实施例的转发控制方法的一示意图；
图5是本申请实施例的转发控制方法的一示意图；
图6是本申请实施例的电子设备的一示意图；
图7是本申请实施例的转发器的一示意图；
图8是本申请实施例的信息发送方法的一示意图；
图9是本申请实施例的网络设备的一示意图；
图10A至图10E是本申请实施例的随机接入过程示意图；
图11是本申请实施例的第一MAC CE示意图；
图12是本申请实施例的第二MAC CE示意图；
图13是本申请实施例的第三MAC CE示意图；
图14是本申请实施例的转发控制方法的一示意图。
具体实施方式
参照附图，通过下面的说明书，本申请的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本申请的特定实施方式，其表明了其中可以采用本申请的原则的部分实施方式，应了解的是，本申请不限于所描述的实施方式，相反，本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本申请实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、收发节点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base  Station Controller)等等。
基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，IAB宿主等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本申请实施例中，术语“用户设备”(UE，User Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备，也可以称为“终端设备”(TE，Terminal Equipment)。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
图1是本申请实施例的NCR的一示意图。如图1所示，NCR 102被配置在网络设备101和终端设备103之间。NCR 102可以包括如下两个模块/部件：转发器的移动终端(NCR-MT)和转发器的转发单元(NCR-Fwd)；NCR-Fwd也可称为NCR的路由单元(NCR-RU)。NCR-MT用于与网络设备通信(交互信息)，NCR-Fwd用于转发往来于网络设备和终端设备之间的信号，NCR-MT和NCR-Fwd为功能实体，其功能可以由相同或不同硬件模块实现。
如图1所示，本申请实施例的NCR可以具有3个链路：控制链路(control link，C-link)，用于转发的回传(或者回程)链路(backhaul link，BH link))和接入链路(access link，AC link，也称为NCR-UE link)。其中，C-link用于NCR与网络设备之间的通信。BH link用于转发器从网络设备接收待转发信号，或者，向网络设备转 发来自终端设备的信号。AC link用于转发器向终端设备转发来自网络设备的信号，或者，接收来自终端设备的待转发信号。具体地，NCR-MT通过C-link与网络设备通信；NCR-Fwd通过BH link和AC link转发信号。
在本申请实施例中，转发器可以与网络设备通信，转发器可以接收网络设备发送的通信信道/信号，并进行信道/信号的解调/解码，由此获得网络设备发给该转发器的信息，以下将该信号处理过程称为“通信”。转发器还可以转发网络设备和终端设备之间传输的信道/信号，转发器不对该信道/信号进行解调/解码，可以进行放大等处理，以下将该信号处理过程称为“转发”。将“通信”和“转发”合称为“传输”。此外，“在AC(或者BH)链路上进行发送或进行接收”可以等价于“在AC(或者BH)链路上进行转发”，“在控制链路上进行发送或进行接收”可以等价于“在控制链路上进行通信”。以上术语仅为了方便说明，并不构成对本申请的限制。在某些情况下，“转发单元”可以与“转发行为”互换。
在本申请实施例中，转发器还可以表述为网络控制转发器(NCR)、直放站、射频转发器、中继器、射频中继器；或者也可以表述为直放站节点、转发器节点、中继器节点；或者还可以表述为智能直放站、智能转发器、智能中继器、智能直放站节点、智能转发器节点、智能中继器节点，等等，本申请不限于此。
在本申请实施例中，网络设备可以是终端设备的服务小区的设备，也可以是转发器所在小区的设备，还可以是转发器的服务小区的设备，也可以是转发器的父节点(Parent node)，本申请对该转发器的名称不做限制，只要能实现上述功能的设备，都包含于本申请的转发器的范围内。
在本申请实施例中，高层信令例如可以是无线资源控制(RRC)信令；RRC信令例如包括RRC消息(RRC message)，例如包括主信息块(MIB)、系统信息(system information)、专用RRC消息；或者RRC信息元素(RRC information element，RRC IE)；或者RRC消息或RRC信息元素包括的信息域(或信息域包括的信息域)。高层信令例如还可以是媒体接入控制层(Medium Access Control，MAC)信令；或者称为MAC控制元素(MAC control element，MAC CE)。但本申请不限于此。
在本申请实施例中，多个是指至少两个，或者两个或两个以上。
在本申请实施例中，预定义是指协议规定好的或者根据协议规定好的规则确定的，无需另外配置。配置/指示是指网络设备通过高层信令和/或物理层信令直接或间接配 置/指示的。物理层信令例如是指物理控制信道承载的控制信息(DCI)或序列承载的控制信息，但不限于此，可以通过在高层信令中引入高层参数配置/指示，高层参数是指高层信令中的信息域(fields)和/或信息元素(IE)等。
下面结合附图对本申请实施例的各种实施方式进行说明。这些实施方式只是示例性的，不是对本申请的限制。
以下结合实施例进行说明。
第一方面的实施例
本申请实施例提供一种转发控制方法，从转发器一侧进行说明。
图2是本申请实施例的转发控制方法的一示意图，如图2所示，该方法包括：
201，所述转发器的移动终端进行波束失败(beam failure)检测；
202，在波束失败的情况下，所述转发器的转发单元关闭/不进行转发。
值得注意的是，以上附图2仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图2的记载。
在一些实施例中，转发器的移动终端(以下称为NCR-MT)和转发器的转发单元(NCR-Fwd)都是转发器中的功能实体，转发器的移动终端和转发器的转发单元可以都称为转发器。
在一些实施例中，NCR-MT包括一个服务小区(Pcell)或多个服务小区，所述转发器的移动终端针对第一小区进行波束失败(beam failure)检测，该第一小区是主小区Pcell或PScell或Scell，本申请实施例并不以此作为限制。
在一些实施例中，NCR-MT针对第一小区进行BFD，网络设备为NCR配置用波束失败检测参考信号(SSB或CSI-RS)，在配置的定时器到期前，当来自物理层的波束失败实例指示的数量达到(大于或等于)配置的阈值(BFI_COUNTER>＝beamFailureInstanceMaxCount)时，确定发生波束失败(也就是说，检测到波束失败，包括BFI_COUNTER>＝beamFailureInstanceMaxCount)。其中，基于SSB的波束失败检测基于与初始DL BWP相关联的SSB，并且可以针对初始DL BWP和包含与初始DL BW P相关联SSB的DL BWP进行配置。对于其他DL BWP，波束失败检测只能 基于CSI-RS进行。
例如，(NCR/NCR-MT(的MAC实体))通过对来自低层(物理层)的波束失败实例指示计数来检测波束失败。其中，BFI_COUNTER(第一计数器)用于对波束失败实例指示计数，其初始值为0。针对第一小区：如果MAC实体接收到来自低层(物理层)的波束失败实例指示，则启动beamFailureDetectionTimer，并将BFI_COUNTER递增1，在BFI_COUNTER的值大于或等于配置的阈值beamFailureInstanceMaxCount时，如果第一小区是SCell，触发NCT-MT针对第一小区的波束失败恢复，否则，在SpCell(包括Pcell和/或PScell，第一小区)上进行随机接入过程。如果beamFailureDetectionTimer过期或者，如果与第一小区相关的上层重配置用于BFD的beamFailureDetectionTimer、阈值或参考信号，则BFI_COUNTER置为0。
在一些实施例中，在波束失败的情况下(例如可以包括(在第一小区)检测到波束失败时和/或检测到波束失败后，以下不再赘述)，该方法还可以包括：所述转发器(NCR/NCR-MT)进行波束失败恢复(BFR)，例如，进行针对第一小区的BFR。
例如，所述波束失败恢复包括：进行随机接入，例如在第一小区发起随机接入，该随机接入是用于波束失败恢复的随机接入；或者，(向第二小区，第二小区是服务小区)发送SR和/或用于BFR的MAC CE。例如，在波束失败被检测到时/后，BFR过程用于(向网络设备)指示新的SSB或CSI-RS，NCR根据网络设备配置的波束失败恢复配置信息进行随机接入，包括非竞争随机接入(CFRA RACH)或者竞争随机接入(CBRA RACH)，例如，包括两次网络设备和NCR-MT的交互(4-step RA)，第一次交互中，NCR-MT发起随机接入请求(MSG1，包括发送随机接入前导，或发送物理随机接入信道PRACH)，接收网络设备反馈的随机接入响应(MSG2)，在第二次交互中，NCR-MT将包含标识等信息发送给网络设备(MSG3)，接收网络设备反馈的MSG4；或者该随机接入也可以是2步随机接入(2-step RA)，即将原有的MSG1和MSG3合并为新的MSGA，将MSG2和MSG4合并为MSGB。
针对Pcell/PScell(SpCell)：在第一小区(Pcell/PScell(SpCell))发起随机接入过程，在Pcell/PScell(SpCell)上检测到波束失败时，NCR通过在所述Pcell/PScell(SpCell)上发起随机接入过程来触发波束失败恢复；选择合适的波束以执行波束失败恢复(如果网络设备已经为某些波束提供了专用的随机接入资源，则NCR将优先考虑这些波束)；如果随机接入过程涉及基于竞争的随机接入，则在BFR MAC CE中 包括Pcell/PScell(SpCell)上的波束失败的指示。
针对Scell(非PScell)：在第一小区(SCell)检测到波束失败，通过发起针对该SCell的BFR MAC CE的传输来触发波束失败恢复；为该SCell选择合适的波束(如果可用)，并将其在BFR MAC CE中与波束失败的信息一起指示。一旦接收到PDCCH，该PDCCH指示针对用于BFR MAC CE的传输的HARQ过程的新传输的上行链路许可(UL grant)，则认为该SCell的波束失败恢复完成。
在一些实施例中，关于针对/由于BFR初始化的随机接入过程：根据配置，该随机接入过程包括针对竞争随机接入的4-stepRA(4-step RA type)和/或2-stepRA(2-step RA type)，和/或针对非竞争随机接入的4-stepRA(4-step RA type)和/或2-stepRA(2-step RA type)。图10A是本申请实施例4-stepRA type的CBRA示意图，如图10A所示，第一步(MSG1)，NCR向网络设备发送随机接入前导，第二步(MSG2)，接收网络设备返回的RAR，第三步(MSG3)，然后向网络设备发送调度传输，第四步(MSG4)，接收网络设备发送的竞争解决消息。图10B是本申请实施例2-stepRA type的CBRA示意图，如图10B所示，NCR向网络设备发送随机接入前导和PUSCH负载(MSGA)，并接收网络设备发送的竞争解决消息(MSGB)。图10C是本申请实施例4-stepRA type的CFRA示意图，如图10C所示，网络设备为NCR分配随机接入前导(MSG0)，NCR向网络设备发送随机接入前导(MSG1)，然后接收网络设备返回的RAR(MSG2)。图10D是本申请实施例2-stepRA type的CFRA示意图，如图10D所示，网络设备向NCR分配随机接入前导和PUSCH(MSG0)，NCR向网络设备发送随机接入前导和PUSCH负载(MSGA)，然后接收网络设备返回的RAR(MSG2)。
在一些实施例中，如果在一些MSGA发送后，2-step RA type的随机接入过程仍然未完成，则NCR可以被配置为切换4-step RA type的CBRA，图10E是本申请实施例的随机接入过程示意图，如图10E所示，NCR向网络设备发送随机接入前导和PUSCH负载(MSGA)，接收到FALLBACK指示，则向网络设备发送调度传输，以及接收网络设备发送的竞争解决消息。
例如，波束失败恢复成功包括：针对CFRA，NCR-MT在由recoverySearchSpaceId提供的搜索空间(SS，后述第一SS)中检测到由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI(格式)(或者说，在该SS接收到一个PDCCH传输,该PDCCH传输与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关 (addressed to)),和/或，接收到第一PDCCH(第一PDCCH与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)，例如，在CFRA中，该第一PDCCH(NCR/NCR-MT)发送MsgA或PRACH之后，在RAR window期间被接收)，和/或，(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(非竞争的)随机接入过程(成功)完成(the Random Access procedure successfully completed)，和/或波束失败恢复(成功)完成。(针对CBRA)NCR-MT在由recoverySearchSpaceId提供的搜索空间中检测到由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI(格式)(或者说，在该SS接收到一个PDCCH传输,该PDCCH传输与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to))，和/或，接收到第一PDCCH(第一PDCCH与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)，例如，在2-step CBRA中，该第一PDCCH在(NCR/NCR-MT)发送MsgA之后，在4-step CBRA中，该第一PDCCH在(NCR/NCR-MT)发送Msg.3之后，在竞争解决window期间被接收)，竞争解决成功，和/或，(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(基于竞争的)随机接入过程(成功)完成(the Random Access procedure successfully completed)，和/或波束失败恢复(成功)完成。
以下分别对波束失败恢复成功进行进一步说明。
在一些实施例中，对于PCell或PSCell，可以通过到由recoverySearchSpaceId提供的搜索空间对应的CORESET(a CORESET through a link to a search space set provided by recoverySearchSpaceId)，用于监听CORESET中的PDCCH(例如，第一PDCCH，但不限于此)。
在一些实施例中，CBRA/CFRA 4-step type的情况下：在ra-ResponseWindow内监听PDCCH，在MAC实体发送了针对波束失败恢复指示的非竞争随机接入前导时，从随机接入前导传输结束时/后的第一个PDCCH occasion，开启(start)波束失败恢复配置BeamFailureRecoveryConfig中的ra-ResponseWindow，在ra-ResponseWindow运行(内)时，监听由SpCell的recoverySearchSpaceId指示的搜索空间上的PDCCH传输(由C-RNTI或MCS-C-RNTI或针对NCR的RNTI识别)。
在一些实施例中，针对CFRA 4-step type，(在上述ra-ResponseWindow中)，接收到相应PDCCH(第一PDCCH，在由recoverySearchSpaceId提供的搜索空间上)即 随机接入过程成功，或者说波束失败恢复成功，例如，在发送随机接入前导的服务小区上从低层收到了接收到第一PDCCH的通知，该第一PDCCH与C-RNTI相关(addressed to)，MAC实体发送针对波束失败恢复请求的非竞争随机接入前导时，认为随机接入过程成功，或者说波束失败恢复成功。
在一些实施例中，针对CBRA的4-step type，如果在PDCCH(用于调度承载RAR的PDSCH的PDCCH)上接收到针对RA-RNTI的有效下行链路分配，并且成功解码了接收到的TB：如果为SpCell的波束失败恢复启动了随机接入过程，并且配置了值为真的SpCell BFR CBRA：向复用和组装实体指示(在MSG3中发送)在随后的上行链路传输中包括BFR MAC CE或截短的BFR MAC CE。从复用和组装实体获得要发送的MAC PDU，并将其存储在MSG3缓冲器中。
在一些实施例中，针对CBRA的4-step type，一旦MSG3被发送，MAC实体应该启动ra-ContentionResolutionTimer并在MSG3传输结束后的第一个符号中的每个HARQ重传重新启动ra-ContentionResolutionTimer，在ra ContentionResolutionTimer运行时(在由recoverySearchSpaceId提供的搜索空间)监听PDCCH，而不管可能出现的测量间隔。
在一些实施例中，针对CBRA的4-step type，在从低层收到了接收到SpCell上的第一PDCCH的通知(或者说在ra ContentionResolutionTimer运行时(在由recoverySearchSpaceId提供的搜索空间)接收到了第一PDCCH)，且此前发送的MSG3中包括C-RNTI的MAC CE，且该第一PDCCH与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)，且随机接入过程是针对SpCell波束失败恢复启动的，认为随机接入过程(竞争解决)成功，或者说波束失败恢复成功，停止ra-ContentionResolutionTimer，丢弃临时C-RNTI。
在一些实施例中，针对CFRA的2-step type，在msgB-ResponseWindow监听PDCCH，在从低层收到了接收到SpCell上的第一PDCCH的通知((或者说在msgB-ResponseWindow中)(在由recoverySearchSpaceId提供的搜索空间)接收到了第一PDCCH))，且此前发送的MSGA中包括C-RNTI的MAC CE，认为随机接入过程成功，或者说波束失败恢复成功，或者说认为随机接入响应接收成功，停止msgB-ResponseWindow。
在一些实施例中，在波束失败的情况下(例如可以包括(在第一小区)检测到波 束失败时和/或检测到波束失败后)，所述转发器的转发单元(被期望)关闭/不进行转发，或者说，不(被允许)开启/进行转发)。
例如，在所述第一小区波束失败的情况下，直到BFR成功之前不进行转发，在BFR成功后(直到接收到新的配置/应用新的配置)，采用第一波束转发，在接收到新的配置/应用新的配置后，采用第二波束转发；或者，例如，在所述第一小区波束失败后，(不考虑BFR是否成功或者BFR成功后)，直到接收到新的配置和/或应用新的配置，不进行转发(也就是说，第一小区波束失败后，即使BFR成功(或者BFR成功后)，直到接收到新的配置和/或应用新的配置，也不进行转发)。接收到新的配置和/或应用新的配置后，采用第一波束或第二波束或第三波束转发，以下分别说明。
(一)直到所述BFR成功(或者说在所述BFR成功之前)，所述NCR-Fwd(被期望)关闭/不进行转发(或者，不被允许开启/进行转发)。也就是说，在波束失败恢复(随机接入过程)中，直到所述BFR成功，NCR-Fwd不进行转发。
在一些实施例中，在所述BFR成功后，在NCR-Fwd采用第一波束进行转发。
在一些实施例中，在第一PDCCH(接收)后的第一时间段后，在NCR-Fwd采用第一波束进行转发，例如第一PDCCH(接收)后的第一时间段后是在第一PDCCH(接收)的最后符号的28个符号之后，其中，第一PDCCH(接收)在由recoverySearchSpaceId提供的用于检测到由C-RNTI或MCS-C-RNTI进行CRC加扰的DCI(格式)(例如，该第一PDCCH承载该DCI(格式)，但不限于此。)的搜索空间集合中。所述第一PDCCH用于确定波束失败恢复成功和/或用于确定随机接入过程完成。
以下对该第一波束进行说明。例如，第一波束是回程链路波束，是指所述转发器的转发单元进行转发时回程链路使用的波束或者所述转发器的网络设备侧使用的波束。也就是说，转发器的转发单元使用该第一波束向网络设备转发信号，或者转发来自网络设备侧的信号(也就是说，用于回程链路或用于转发)和/或第一波束是控制链路波束(也就是说，用于控制链路或者用于NCR/NCR-MT与网络设备之间的通信/信息交互)。
在一些实施例中，所述第一波束和(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(最近一次)随机接入尝试/过程(或者说成功的随机接入尝试/过程)中使用的波束(包括(根据)最近一次PRACH  transmission(所在/使用)的RO(RACH occasion)关联的SSB确定的波束)相同。所述第一波束包括下行波束(或者说接收波束，用于接收来自网络设备的(发送给NCR/NCR-MT的和/或待(NCR/NCR-Fwd)转发的)下行信号和/或信道)和/或上行波束(或者说发送波束，用于向网络设备发送(NCR/NCR-MT的和/或来自UE的/(由NCR/NCR-Fwd)向网络设备转发的)上行信号和/或信道)。
例如，所述第一波束包括：与索引qnew相关的相同天线端口准共址参数(same antenna port quasi-collocation parameters as the ones associated with index qnew)，或者说，由该QCL参数确定的(下行)波束。和/或，与最近一次PARCH传输相同的空间滤波器(a same spatial filter as for the last PRACH transmission)，或者说，由该空间滤波器spatial filter确定的(上行)波束，和/或，(根据)最近一次PRACH transmission(所在/使用)的RO(RACH occasion)关联的SSB确定的(下行和/或上行)波束，和/或，用于接收所述第一PDCCH的下行波束，和/或用于发送所述最后一个PRACH(transmission)的上行波束。
在一些实施例中，所述第一波束是预定义的(例如，协议规定的或者根据预定义规则确定的)或者被指示的。
在一些实施例中，所述第一波束用于在NCR-MT/控制链路有或没有接收或发送的情况下进行转发。
以上，在所述BFR成功，或者，在第一PDCCH后的第一时间段后，直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，NCR-Fwd采用第一波束进行转发，或者说，在所述BFR成功，或者，在第一PDCCH后的第一时间段后，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)之前，NCR-Fwd采用第一波束进行转发。
在一些实施例中，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波 束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，NCR-Fwd采用第二波束进行转发。
在一些实施例中，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，NCR-Fwd采用第一波束或第三波束进行转发。例如，在没有第一指示信息和第二指示信息指示，但由第三指示信息指示NCR可以进行转发，NCR使用预定义的第一波束或者后述第三波束进行转发。
在一些实施例中，关于以上指示信息和第二波束、第三波束将在后述进行说明。
(二)(不考虑BFR是否成功)直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，所述NCR-Fwd(被期望)在所述波束失败恢复成功前关闭/不进行转发(或者，不被允许开启/进行转发)。
或者说，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)之前，所述NCR-Fwd(被期望)在所述波束失败恢复成功前关闭/不进行转发(或者，不被允许开启/进行转发)。
在一些实施例中，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，NCR-Fwd采用第二波束进行转发。
在一些实施例中，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息 (或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，NCR-Fwd采用第一波束或第三波束进行转发。例如，在没有第一指示信息和第二指示信息指示，但由第三指示信息指示NCR可以进行转发，NCR使用预定义的第一波束或者后述第三波束进行转发。
以下对(一)和(二)中各指示信息进行说明。
在一些实施例中，该第一指示信息用于指示/配置控制链路波束。
例如，第一指示信息用于配置和/或激活(针对PDSCH和/或PDCCH和/或PUCCH和/或SRS的)TCI state/SRI(SpatialRelationInfo)。其包括RRC信令，和/或MAC CE，和/或DCI。例如，第一指示信息包括用于TCI state的MAC CE激活命令(或者说用于激活TCI state的指示)，或者PDSCH-Config中tci-StatesToAddModList(-r17/r18)和tci-StatesToReleaseList(-r17/r18)的信息域；例如，该MAC CE可以是Unified TCI States Activation/Deactivation MAC CE或者TCI States激活/去激活用户专用PDSCH MAC CE或者，TCI状态指示用户专用PDCCH MAC CE。和/或，所述第一指示信息包括针对PUCCH资源的PUCCH-SpatialRelationInfo(-r17/r18)和/或针对PUCCH-SpatialRelationInfo(-r17/r18)的(MAC CE)激活命令，例如，该激活命令包括PUCCH空间关系激活/去激活MAC CE(PUCCH spatial relation Activation/Deactivation MAC CE)，或者，增强的PUCCH空间关系激活/去激活MAC CE(Enhanced PUCCH Spatial Relation Activation/Deactivation MAC CE)，或者，多TRP PUCCH重复的PUCCH空间关系激活/去激活MAC CE(PUCCH空间关系激活/去激活MAC CE)。和/或，(针对PDSCH配置的/PDSCH-Config中的)tci-StatesToAddModList(-r17/r18)和/或tci-StatesToReleaseList(-r17/r18)，和/或，(针对PDSCH配置的/PDSCH-Config中的)dl-OrJointTCI-StateList(-r17/r18)和/或dl-OrJointTCI-StateToAddModList(-r17/r18)和/或dl-OrJointTCI-StateToReleaseList(-r17/r18)，和/或，ul-TCI-ToAddModList，和/或，(用于指示(或者说指示了)unified TCI的)第二DCI(例如，DCI format 1_1/1_2等)。
在一些实施例中，所述第二指示信息用于指示回程链路波束。
例如，所述第二指示信息是MAC信令。其中，所述第二指示信息用于指示从第一TCI state集合中指示用于回程链路的TCI state，或者，从第二TCI state集合中指示用于回程链路的TCI state，或者，从第一SRI集合中指示用于回程链路的SRI。例 如，在控制链路应用Rel-15/16波束指示框架时，对于下行波束，所述第二指示信息是从第一TCI state集合中指示用于回程链路的TCI state，对于上行波束，所述第二指示信息是从第一SRI集合中指示用于回程链路的SRI，在控制链路应用Rel-17波束指示框架时，所述第二指示信息是从第二TCI state集合中指示用于回程链路的TCI state。或者，第二指示信息指示Unified TCI state。例如，针对NCR，统一TCI State类型必须指示上下行联合(joint)或者，可以指示上下行联合的(joint)或独立的(separate)，独立表示该服务小区配置了下行TCI状态的dl-OrJointTCI-StateList和上行TCI状态的ul-TCI-ToAddModList。联合表示该服务小区配置上下行联合TCI状态的dl-OrJointTCI-StateList。
在一些实施例中，第二指示信息包括一个或多个MAC CE。
例如第二指示信息包括用于指示回程链路的下行波束的第一MAC CE，在控制链路应用Rel-15/16波束指示框架时，对于下行波束，所述第一MAC CE是从第一TCI state集合中指示用于回程链路的TCI state。其至少包括用于指示TCI state(e.g.TCI state ID)的第一信息域，包括或不包括用于指示服务小区(e.g.服务小区ID)的第二信息域和/或用于指示下行BWP(e.g.BWP ID)的第三信息域。
例如第二指示信息包括用于指示回程链路的上行波束的第二MAC CE，在控制链路应用Rel-15/16波束指示框架时，对于上行波束，所述第二MAC CE是从第一SRI集合中指示用于回程链路的SRI,包括用于指示SRI(e.g.SRI ID)的第一信息域，包括或不包括用于指示服务小区(e.g.服务小区ID)的第二信息域和/或用于指示UL BWP(e.g.BWP ID)的第三信息域。例如，第一信息域通过指示pucch-SpatialRelationInfoId指示针对回程链路的SRI。
例如第二指示信息包括用于指示回程链路的上行波束和/或下行波束的第三MAC CE，在控制链路应用Rel-17波束指示框架时，所述第三MAC CE是从第二TCI state集合中指示用于回程链路的TCI state。包括用于指示TCI state(e.g.TCI state ID)的第一信息域，包括或不包括用于指示服务小区(e.g.服务小区ID)的第二信息域和/或用于指示BWP(e.g.BWP ID)的第三信息域。第一信息域指示的为Unified TCI状态，例如，从dl-OrJointTCI-StateList中指示针对回程链路的TCI state。
以上第一MAC CE、第二MAC CE、第三MAC CE可以是相同的MAC CE或不同的MAC CE，本申请实施例并不以此作为限制。
例如第一MAC CE(NCR回传链路下行波束激活/去激活MAC CE)，该第一MAC CE由带eLCID的MAC子头(Table 6.2.1-1b参考)识别，其大小具有为固定的8比特，图11是本申请实施例第一MAC CE示意图，如图11所示，TCI状态ID域(7比特)指示在激活BWP的PDSCH-Config中tci-StatesToAddModList和tci-StatesToReleaseList配置的TCI state的TCI-StateID，A/D域(1比特)指示是否激活或去激活指示的TCI state。该域设置为1时指示激活，否则指示去激活。
例如第二MAC CE(NCR回传链路上行波束激活/去激活MAC CE)，该第二MAC CE由带eLCID的MAC子头(Table 6.2.1-1b参考)识别，其大小具有为固定的8比特，图12是本申请实施例第二MAC CE示意图，如图12所示，Si信息域，针对激活BWP配置PUCCH空间关系信息SpatialRelationInfoId(参考TS 38.331)，Si表示PUCCH SPAtialRelationInfo的激活状态，PUCCH SpatialRelationInfoId等于i+1。Si域设置为1，以指示应激活PUCCH空间关系信息(PUCCH SpatialRelationInfoId等于i+1)。Si字段设置为0，以指示PUCCH空间关系信息(PUCCH SpatialRelationInfoId等于i+1)去激活。一次只能激活在激活BWP中配置的单个PUCCH空间关系信息。
例如第三MAC CE(NCR回传链路统一波束激活/去激活MAC CE)，该第三MAC CE由带eLCID的MAC子头(Table 6.2.1-1b参考)识别，其具有可变长度，图13是本申请实施例第二MAC CE示意图，如图13所示：
-P：此字段指示TCI码点(codepoint)是否具有两个TCI状态或单个TCI状态。如果P字段设置为1，则表示TCI码点包括DL TCI状态和UL TCI状态。如果P字段设置为0，则表示TCI码点仅包括DL/联合TCI状态或UL TCI状态。
-D/U：此字段指示的同一个八位位组中的TCI状态ID是用于DL/联合TCI状态或UL TCI状态。如果该字段设置为1，则同一(对应)八位位组中的TCI状态ID用于DL/联合TCI状态。如果该字段设置为0，则同一(对应)八位位组中的TCI状态ID用于UL TCI状态。
-TCI状态ID：此字段指示由TS 38.331中规定的激活DL/UL BWP中配置的TCI状态ID标识的TCI。如果D/U设置为1，则使用7比特长度的TCI状态ID，即在TS 38.331中规定的激活DL BWP的dl-OrJoint-TCStateList-r17中配置的TCI StateId。如果D/U设置为0，则TCI状态ID的最高有效位(the most significant bi)被视为预留位，剩余的6位指示在TS 38.331中规定的激活UL BWP中配置的UL TCIState ID。
-A/D：此字段指示是激活还是去激活所指示的TCI状态。该字段设置为1表示激活，否则表示去激活。
-R：预留位，设置为0。
在一些实施例中，所述第三指示信息用于指示接入链路波束。所述第三指示信息包括：周期性的/半静态的(或者说由RRC信令提供的)接入链路波束指示(以下称为第一波束指示信息)，(用于激活接入链路波束指示的)激活命令(MAC CE/DCI)，用于配置/指示(NCR监听)第一DCI的信息，(用于指示接入链路波束的)第一DCI。
例如，第一波束指示信息可以是RRC信令中新引入的信息域(高层参数)，该新信息域包括一个或多个针对接入链路的周期性的波束指示(第一波束指示)。每个第一波束指示中包括转发资源列表，该列表中每一个包括指示接入链路波束的第四信息域和用于指示时域资源的第五信息域，该第六信息域包括一个周期内的时域资源的时长信息和/或偏移信息；另外，第一波束指示还可以包括周期信息(针对所述第一波束指示信息指示的全部时域资源)和/或优先级信息；另外，第一波束指示信息还可以包括用于指示第一子载波间隔的第六信息域，指示的第一子载波间隔针对所述第一波束指示信息指示的全部时域资源，例如，第一波束指示信息指示的全部时域资源与第一子载波间隔相关，该相关包括，各时域资源的时长信息和/或偏移信息与第一子载波间隔相关，该时长信息和/或偏移信息的时间单位可以是毫秒或时隙或符号，其长度与第一子载波间隔相关，本申请实施例并不以此作为限制。
在一些实施例中，网络设备可以向NCR发送一个或多个第一波束指示信息，每个第一波束指示信息分别包括上述第四信息域、第五信息域、第六信息域、周期信息、优先级信息中的一个或多个。例如，采用ToAddModList或其他lists的方式配置，由此，可以配置一个或多个list，其中，一个list包括上述一个第一波束指示信息，从而可以支持一个或多个第一波束指示信息。
在一些实施例中，该RRC信令包括RRC Reconfiguration消息，和/或RRC Release消息，和/或第一RRC消息，所述第一RRC消息是NCR专用RRC消息。
在一些实施例中，该第一RRC消息除了包括上述第一波束指示信息以外，还可以包括其他信息，例如针对后述第一DCI中的第四信息域第五信息域的相关配置(例如下述时域资源列表配置等)，但本申请实施例并不以此作为限制。
在一些实施例中，NCR接收到第一波束指示信息后，还需要接收到另一指示后， 才能开始根据第一波束指示信息在相应的被指示的时域资源采用相应的接入链路波束进行转发，或者，NCR接收到第一波束指示信息后，无需接收另一指示即可根据第一波束指示信息在相应的被指示的时域资源采用相应的接入链路波束进行转发。
在一些实施例中，NCR是否支持第一波束指示信息是可选的(可以支持或不支持)，或强制性的(支持)，或有条件强制性的(例如满足条件(例如工作频带FR2)时支持)。
例如，该第一DCI格式用于接入链路波束指示。该第一DCI格式的下行控制信息不用于调度PDSCH或PUSCH或者，该第一DCI格式的下行控制信息也可以用于调度PDSCH或PUSCH。该第一DCI格式可以是新引入的DCI格式(e.g.DCI format 2_8,或2_9或2_10等)，或者也可以是现有的DCI格式(e.g.1_1,或2_0等)，该第一DCI格式与第二DCI格式相同或不同(现有的DCI格式目前还支持本申请实施例中的功能)，本申请实施例并不以此作为限制。
在一些实施例中，“第一DCI格式的下行控制信息”或者“采用第一DCI格式的下行控制信息”或者“第一DCI格式的DCI”或者“第一DCI”也可以替换为“第一DCI格式”。
例如，所述第三指示信息可以包括用于指示波束的一个或多个第四信息域和用于指示时域资源的一个或多个第五信息域，所述转发器的转发单元不在(由所述第三指示信息)指示的时域资源之外进行转发。例如，第三指示信息为第一DCI，一个第四信息域用于指示一个接入链路波束索引，或者至多指示一个接入链路波束索引，或者指示多个接入链路波束索引。该接入链路波束索引可以包括对应接入链路波束(或者说(实际的)物理波束)的波束索引和/或不对应波束(或者说(实际的)物理波束)的波束索引。
在一些实施例中，波束索引范围是预定义的和/或由高层信令配置/指示的。例如，波束索引范围内的所有波束索引都是预定义的或高层信令配置/指示的，或者，其中一部分波束索引是预定义的，一部分波束索引是高层信令配置/指示的。针对后者，例如，对应波束的波束索引是预定义的，不对应波束的波束索引是高层信令配置/指示的,但不限于此。
在一些实施例中，一个第五信息域用于指示一个时域资源索引，或者至多指示一个时域资源索引，或者指示多个时域资源索引。该索引也可以替换为序号。
在一些实施例中，第五信息域对应时域资源表。该时域资源表是预定义的和/或前述第一RRC消息或其他RRC消息配置的。所述时域资源表包括一个或多个时域资源配置，时域资源(TDRA)表(或者简称为TDRA表)包括至少一行(列)，以下，为方便描述，将一行(列)称为一个TDRA配置，一个TDRA配置包括一个时域资源或多个时域资源或不包括时域资源。一个时域资源是连续的或不连续的。
在一些实施例中，一个时域资源例如由以下参数中的一项或多项定义：时隙偏移K3，符号偏移S，用于确定时域资源的长度L(duration)，子载波间隔。这些参数分别是预定义的和/或由高层信令配置的。其中，时隙偏移K3是指时域资源的起始时隙或与时域资源起始时隙对应/交叠/关联的第一时隙与参考点之间的偏移值。上述参考点可以至少基于承载第二波束指示信息的DCI所在的时隙或符号或承载所述第二波束指示信息的DCI或PDCCH的HARQ反馈的PUCCH/PUSCH所在的时隙或符号确定。若一个时域资源配置包括多个时域资源，不同的时域资源的时隙偏移的参考点相同(例如都是至少基于第二波束指示信息的DCI所在的时隙或符号确定)或不同(例如，针对第一个时域资源：至少基于第二波束指示信息的DCI所在的时隙或符号确定，针对后面的时域资源，至少基于前一个时域资源所在的时隙或符号确定)。符号偏移S是指时域资源的第一个符号与前述起始时隙的边界/起始符号/第一个符号，或者，相对于承载第二波束指示信息的DCI或PDCCH/PDCCH MO的起始符号/第一个符号之间的偏移值。时域资源的长度L例如表示时域资源包含的符号数量。符号偏移S和/或时域资源的长度L例如必须保证配置的时域资源在同一时隙内，或者，配置的时域资源可以在同一时隙内也可以跨时隙。时域资源表中的每个配置包括的时域资源数量相同或者不同。
在一些实施例中，一个配置中的时域资源可以采用列表(list)或序列(sequence)的形式定义。例如，引入一个IE，该IE包括上述定义一个时域资源的参数。一个配置包括一个列表或序列，该一个列表或序列包括一个或多个对应上述IE的fields。
在一些实施例中，第五信息域可以通过指示时域资源表中的配置指示一个时域资源或多个时域资源或不指示时域资源。
在一些实施例中，时域资源索引可以包括对应时域资源的时域资源索引和/或不对应时域资源的时域资源索引。例如，时域资源索引是第五信息域对应的时域资源表中的一列(行)配置的索引或者序号，若该时域资源表中的所有配置都包括时域资源， 则时域资源索引仅包括对应时域资源的时域资源索引；若该时域资源表中存在包括时域资源的配置和不包括时域资源的配置，则时域资源索引包括对应时域资源的时域资源索引和不对应时域资源的时域资源索引。再例如，时域资源列表中的所有配置都包括时域资源，若时域资源索引中的所有值都对应该时域资源表中的配置，则时域资源索引仅包括对应时域资源的时域资源索引；若时域资源索引中的部分值对应该时域资源表中的配置，部分值不对应该时域资源表中的任一配置，则时域资源索引包括对应时域资源的时域资源索引和不对应时域资源的时域资源索引。其中，不对应时域资源的时域索引例如是预定义的和/或高层信令配置的。
以下对如何确定/指示第二波束进行说明。例如第二波束是回程链路波束，是指所述转发器的转发单元进行转发时回程链路使用的波束或者所述转发器的网络设备侧使用的波束。也就是说，转发器的转发单元使用该第一波束向网络设备转发信号，或者转发来自网络设备侧的信号(也就是说，用于回程链路或者用于转发)和/或第二波束是控制链路波束(也就是说，用于控制链路或者用于NCR/NCR-MT与网络设备之间的通信/信息交互)。例如，第二波束包括下行波束(或者说接收波束，用于接收来自网络设备的(发送给NCR/NCR-MT的和/或待(NCR/NCR-Fwd)转发的)下行信号和/或信道)和/或上行波束(或者说发送波束，用于向网络设备发送(NCR/NCR-MT的和/或来自UE的/(由NCR/NCR-Fwd)向网络设备转发的)上行信号和/或信道)。
在一些实施例中，可以根据所述第一指示信息和/或预定义规则确定所述第二波束。
在一些实施例中，所述第二波束包括：由具有最小ID的CORESET的QCL假设确定的(下行)波束和/或由具有最小(PUCCH resource)ID的PUCCH(针对所述第一服务小区的配置的CORESET中)的空间关系确定的(上行)波束。例如，针对由具有最小ID的CORESET的QCL假设确定的波束：所述具有最小ID的CORESET是在第一DL BWP和/或第一时间位置上具有ID的CORESET。该CORESET可以是CORESET#0，所述第一DL BWP在Pcell，和/或，所述第一DL BWP是初始DL BWP或缺省DL BWP或激活的DL BWP(或者发起/进行波束失败恢复/相应随机接入过程的DL BWP)，所述第一时间位置包括：NCR-MT(例如在服务小区(例如Pcell)的激活BWP内/上述第一DL BWP内)监听一个或多个CORESET的最近/后时隙(the  latest slot in which one or more CORESETs are monitored by the NCR-MT，或者最近的/最后的一个NCR-MT监听(一个或多个)CORESET的时隙)。例如，针对由具有最小PUCCH resource ID的PUCCH的空间关系确定的波束：所述具有最小PUCCH resource ID的PUCCH是在第一UL BWP和/或第二时间位置上具有最低PUCCH resource ID的PUCCH，所述第一UL BWP在Pcell，和/或，所述第一UL BWP是初始UL BWP或缺省UL BWP或激活的UL BWP(或者发起/进行波束失败恢复/相应随机接入过程的UL BWP)，所述第二时间位置包括：NCR-MT(例如服务小区的激活BWP内)发送PUCCH的最近/后时隙(the latest slot in which PUCCH is transmitted by the NCR-MT，或者说最近的/最后的一个NCR-MT发送PUCCH的时隙)。
在一些实施例中，所述第二波束包括：(由)被指示的统一TCI(unified TCI)(确定的下行和/或上行波束)。
例如，当Rel-15/16波束指示框架用于控制链路时，由具有最小ID的CORESET的QCL假设确定的(下行)波束和/或由具有最小(PUCCH resource)ID的PUCCH(针对所述第一服务小区的配置的CORESET中)的空间关系确定的(上行)波束；当Rel-17波束指示框架(即统一TCI框架)用于控制链路时，(由)被指示的统一TCI(unified TCI)(确定的下行和/或上行波束)。
在一些实施例中，所述第二波束是所述第二指示信息指示的。可以根据所述第二指示信息确定所述第二波束，例如根据第二指示信息中的第一信息域确定第二波束，此处不再赘述。
在一些实施例中，该方法还包括：
在波束失败的情况下，所述NCR-MT不监听或者说不接收第一DCI(format)和/或第二DCI，关于该第一DCI和第二DCI的描述如前所述，此处不再赘述。
在一些实施例中，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成功之前)，所述NCR-MT不监听第一DCI(format)。
在一些实施例中，在BFR成功之后，所述NCR-MT监听第一DCI(format)，例如，采用第一波束监听第一DCI格式。
在一些实施例中，直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信 息(或者说应用上述指示信息指示的波束)(或者说，在此之前)，所述NCR-MT不监听所述第一DCI(format)。
在一些实施例中，接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，之后，所述NCR-MT监听所述第一DCI(format)。
在一些实施例中，(在波束失败之前)，NCR/NCR-MT(被配置/指示)在上述SS(第一SS)(recoverySearchSpaceId提供的搜索空间)或第二SS(另一个SS)监听第一DCI。该第二SS和第一SS关联的CORESET相同或不同。
在一些实施例中，BF后，NCR/NCR-MT不监听第一DCI。在BFR成功之后，所述NCR-MT(采用第一波束)监听第一DCI(format)。直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前)，所述NCR-MT不监听所述第一DCI(format)。接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，之后，所述NCR-MT监听所述第一DCI(format)。关于如何监听DCI/PDCCH可参考前述实施例的描述。
在一些实施例中，该方法还包括：
在波束失败的情况下，所述NCR-MT监听第一DCI(format)，所述第一DCI用于指示接入链路波束。关于该第一DCI的描述如前所述，此处不再赘述。例如，BF后，NCR/NCR-MT(在第一SS/第二SS)监听第一DCI，在接收到该第一DCI时/后的情况下，随机接入过程(成功)完成和/或波束失败恢复(成功)完成。其中，该第一DCI对应的PDCCH即前述第一PDCCH中的一种，其可以采用针对NCR的RNTI加扰。
在一些实施例中，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成 功之前)，所述NCR-MT监听第一DCI(format)。
在一些实施例中，所述NCR-MT在所述波束失败和/或所述波束失败恢复之前监听第一DCI。
由上述实施例可知，在检测到波束失败后，NCR可以不进行转发，由此，使转发单元开启状态对应的时域资源/波束与网络设备和终端设备之间的数据传输的时域资源/波束匹配，从而节省转发器的功耗，减小干扰，提升网络吞吐量。
本申请实施例提供一种转发控制方法，从转发器一侧进行说明，与前述实施例重复之处不再指示。
图3是本申请实施例的转发控制方法的一示意图，如图3所示，该方法包括：
301，所述转发器的移动终端进行波束失败(beam failure)检测；
302，在波束失败的情况下，所述转发器的转发单元进行转发。
值得注意的是，以上附图3仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图3的记载。
在一些实施例中，关于301的实施方式可以参考201，此处不再赘述。该方法还可以包括：所述转发器(NCR/NCR-MT)进行波束失败恢复(BFR)，其实施方式可以参考前述实施例，此处不再赘述。
在一些实施例中，在波束失败的情况下，所述转发器的转发单元(被期望/被允许)进行转发(或者，可以(或被允许)开启/进行转发)。例如，采用第三波束进行转发。该第三波束是回程链路波束，该第三波束是在波束失败之前被指示和/或确定的，也就是说，在第一小区波束失败的情况下，转发器使用波束失败之前的回程链路波束进行转发。
例如，在波束失败之前的回程链路波束包括：
当Rel-15/16波束指示框架用于控制链路时，可以根据预定规则1确定回程链路，例如，由具有最小ID的CORESET的QCL假设确定的(下行)波束和/或由具有最小(PUCCH resource)ID的PUCCH(针对所述第一服务小区的配置的CORESET中)的空间关系确定的(上行)波束；或者，该回程链路波束可以是指示信息指示的，该 指示信息的实施方式可以参考第二指示信息，此处不再赘述。
当Rel-17波束指示框架(即统一TCI框架)用于控制链路时，可以根据预定规则1确定回程链路，或者，根据预定规则2确定回程链路，例如，(由)被指示的统一TCI(unified TCI，例如第一指示信息指示)(确定的下行和/或上行波束)。或者，该回程链路波束可以是指示信息指示的，该指示信息的实施方式可以参考第二指示信息，此处不再赘述。
另外，需要说明的是，在波束失败之前的接入链路波束(第四波束)可以由RRC信令配置和/或激活接入链路波束指示激活信令指示，或者仅由DCI(例如第一DCI)指示。
在一些实施例中，直到所述BFR成功(或者说在所述BFR成功之前)，所述NCR-Fwd采用第三波束进行转发。也就是说，在波束失败恢复(随机接入过程)中，直到所述BFR成功，NCR-Fwd采用第三波束进行转发。例如，在所述BFR成功后，在NCR-Fwd采用第三波束进行转发。或者例如，在第一PDCCH后的第一时间段后，在NCR-Fwd采用第三波束进行转发，关于该第一PDCCH和第一时间段如前所述，此处不再指示。
以上，在所述BFR成功，或者，在第一PDCCH后的第一时间段后，直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，在NCR-Fwd采用第三波束进行转发，或者说，在所述BFR成功，或者，在第一PDCCH后的第一时间段后，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)之前，在NCR-Fwd采用第三波束进行转发。在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，在NCR-Fwd采用第二波束进行转发。关于以上指示信息和第二波束将如前实施例所述，此处不再 赘述。
在一些实施例中，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，在NCR-Fwd采用第二波束进行转发。另外，在没有第一指示信息和第二指示信息指示，但由第三指示信息指示NCR可以进行转发，NCR使用预定义的第一波束或仍使用第三波束进行转发。
在一些实施例中，该方法还包括：
在波束失败的情况下，所述NCR-MT不监听或者说不接收第一DCI(format)和/或第二DCI，关于该第一DCI和第二DCI的描述如前所述，此处不再赘述。
在一些实施例中，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成功之前)，所述NCR-MT不监听第一DCI(format)。
在一些实施例中，在BFR成功之后，所述NCR-MT监听第一DCI(format)，例如，采用第一波束监听第一DCI格式。
在一些实施例中，直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前)，所述NCR-MT不监听所述第一DCI(format)。
在一些实施例中，接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，之后，所述NCR-MT监听所述第一DCI(format)。
在一些实施例中，该方法还包括：
在波束失败的情况下，所述NCR-MT监听第一DCI(format)，所述第一DCI用于指示接入链路波束。关于该第一DCI的描述如前所述，此处不再赘述。
在一些实施例中，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成 功之前)，所述NCR-MT监听第一DCI(format)。
在一些实施例中，所述NCR-MT在所述波束失败和/或所述波束失败恢复之前监听第一DCI。
由上述实施例可知，在检测到波束失败后，NCR可以进行转发，由此，使转发单元开启状态对应的时域资源/波束与网络设备和终端设备之间的数据传输的时域资源/波束匹配，从而节省转发器的功耗，减小干扰，提升网络吞吐量。
以上图2的实施例中，在波束失败的情况下，所述转发器的转发单元关闭/不进行转发，在图3的实施例中，在波束失败的情况下，所述转发器的转发单元进行转发。但本申请实施例并不以此作为限制，例如，在波束失败的情况下，基于NCR实现，所述转发器的转发单元关闭/不进行转发或者进行转发，此处不再一一赘述。
本申请实施例提供一种转发控制方法，从转发器一侧进行说明，与前述实施例重复之处不再指示。
图4是本申请实施例的转发控制方法的一示意图，如图4所示，该方法包括：
401，NCR-MT进行波束失败(beam failure)(或者说链路失败link failure)检测；
402，在波束失败的情况下，所述NCR-MT进行BFR；
403，在所述BFR失败的情况下，NCR-Fwd不进行转发。
关于401-402的实施方式如前实施例所述，此处不再赘述，前述实施例中说明了BFR成功后NCR-Fwd的处理，在403中，在所述BFR失败的情况下，或者说，存在随机接入问题时，NCR-Fwd不进行转发，其中，在BFR失败后，随机接入过程失败则NCR认为无线链路失败(RLF)。
由上述实施例可知，在BFR失败后，NCR不进行转发，由此，使转发单元开启状态对应的时域资源/波束与网络设备和终端设备之间的数据传输的时域资源/波束匹配，从而节省转发器的功耗，减小干扰，提升网络吞吐量。
另外，发明人发现，NCR-Fwd在一个时间段能够转发信号的前提包括：针对该时间段，NCR除了有接入链路波束，还有适用的回程链路波束。目前，标准已经同意NCR-Fwd的开启状态“ON”由接入链路波束指示(隐式地)指示。也就是说，在指示接入链路波束的时域资源(时间段)上，NCR-Fwd是开启状态，应转发信号。然 而，根据当前进展，NCR有可能在还没有适用的回程链路波束之前接收到接入链路波束指示，但没有相应的NCR如何处理这种情况的方法。
针对上述问题，本申请实施例提供一种转发控制方法，从转发器一侧进行说明，与前述实施例重复之处不再指示。
图5是本申请实施例的转发控制方法的一示意图，如图5所示，该方法包括：
501，所述转发器接收第三指示信息；
在所述转发器具有(适用的)回程链路波束之前，所述转发器不期望接收到所述第三指示信息和/或所述转发器不(被期望)应用所述第三指示信息。
在一些实施例中，所述转发器具有(适用的)回程链路波束之前，所述方法包括：
在(根据预定义规则和/或第一指示信息)确定了回程链路波束(或者，接收到第一指示信息)之前，和/或，
应用(根据预定义规则和/或第一指示信息)确定的回程链路波束之前，和/或
在被配置/指示了回程链路波束(或者，接收到第二指示信息)之前，和/或
应用被指示的回程链路波束(或者应用第二指示信息)之前。
关于各指示信息请参考前述实施例，此处不再赘述。
本申请实施例提供一种转发控制方法，从转发器一侧进行说明，与前述实施例重复之处不再指示。
图14是本申请实施例的转发控制方法的一示意图，如图14所示，该方法包括：
1401，所述转发器的移动终端进行波束失败(beam failure)检测；
1402，在波束失败的情况下，所述转发器的移动终端监听或不监听第一DCI和/或第二DCI，所述第一DCI用于指示接入链路波束，所述第二DCI用于指示统一TCI(状态)。
关于1401-1402的实施方式可以参考前述实施例，此处不再赘述。
关于以上转发控制方法的具体实施方式如前所述，此处不再一一赘述。以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。例如，NCR可以进行BFD，在BF之前，转发器可以使用前述第三波束(和/或第四波束)进行转发，在BF之后，NCR-Fwd 可以根据图2或图3中的实施例转发信号(采用第三波束转发)或不转发信号，并且NCR-MT发起BFR，在BFR失败后，根据图4中的实施例NCR-Fwd不进行转发，在BFR成功后或者在接收到新的配置后NCR-Fwd采用第二波束进行转发。
以上实施例中，主要针对单TRP的情况的BFD/BFR进行说明，但本申请实施例并不以此作为限制，例如还可以针对多TRP。
在一些实施例中，NCR/NCR-MT不支持(不期望被配置)多TRP(multi-TRP)操作或在多TRP操作中的BFD或两组BFD参考信号。
在一些实施例中，NCR/NCR-MT(被配置)多TRP(multi-TRP)操作或在多TRP操作中的BFD或两组BFD参考信号。在这种情况下，对于多TRP操作中的波束失败检测，网络设备为NCR配置两组(集合)BFD参考信号，在配置的定时器到期前，在与BFD参考信号对应的组相关的来自物理层的BFI的数量达到配置的阈值时，NCR认为针对一个TRP/BFD参考信号组波束失败。
在针对服务小区(第一小区)的该BFD-RS组检测到波束失败之后，NCR通过发起针对该BFD-RS组的BFR MAC CE的传输来触发波束失败恢复；为该BFD-RS组选择合适的波束(如果可用)，并在该BFD-RS组的BFR MAC CE中指示是否找到合适的(新的)波束以及不带有波束失败的信息(indicates whether the suitable(new)beam is found or not along with the information about the beam failure in the BFR MAC CE for this BFD-RS set)。
一旦接收到PDCCH，该PDCCH指示用于HARQ过程的新传输的上行链路许可，该HARQ过程用于该BFD-RS组的BFR MAC CE的传输，则认为该BFD-RS组的波束失败恢复完成。
在同时检测到PCell的两个BFD-RS组的波束失败之后，NCR通过在所述PCell上发起随机接入过程来触发波束失败恢复；选择针对各个失败的BFD-RS合适的波束(如果有)，并在该各个失败的BFD-RS组的BFR MAC CE中指示是否找到合适的(新的)波束以及不带有波束失败的信息。在完成随机接入过程后，PCell两个BFD-RS组的波束失败恢复被认为完成。
第二方面的实施例
本申请实施例提供一种转发器，该转发器例如可以是前述的NCR，也可以是具有转发功能的网络设备或终端设备，也可以是配置于NCR、网络设备或终端设备的某个或某些部件或者组件。
图7是本申请实施例的转发器的一示意图，由于该转发器解决问题的原理与第一方面的实施例的方法相同，因此其具体实施可以参照第一方面的实施例，内容相同之处不再重复说明。
如图7所示，本申请实施例的转发器700包括：移动终端701和转发单元702，移动终端701和转发单元702为功能实体，其功能可以由相同或不同硬件模块实现。
移动终端701，其进行波束失败(beam failure)检测；
转发单元702，其在波束失败的情况下关闭/不进行转发，或者进行转发。
或者，
移动终端701，其进行波束失败(beam failure)(或者说链路失败link failure)检测；在波束失败的情况下，所述移动终端701进行BFR；
转发单元702，在所述BFR失败的情况下，不进行转发。
或者，
移动终端701接收第三指示信息；在所述转发器具有(适用的)回程链路波束之前，不期望接收到所述第三指示信息和/或所述转发器不(被期望)应用所述第三指示信息。
或者，
移动终端701，其进行波束失败(beam failure)(或者说链路失败link failure)检测，在波束失败的情况下，所述转发器的移动终端监听或不监听第一DCI和/或第二DCI，所述第一DCI用于指示接入链路波束，所述第二DCI用于指示统一TCI(状态)。
移动终端701和转发单元702的实施方式可以参考第一方面的各实施例，此处不再赘述。
此外，为了简单起见，图7中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
第三方面的实施例
本申请实施例提供一种信息发送方法，从网络设备一侧进行说明，与第一方面的实施例相同的内容不再赘述。
图8是本申请实施例的信息发送方法的一示意图，如图8所示，该方法包括：
801，网络设备发送第三指示信息；在转发器具有(适用的)回程链路波束之前，或者转发器具有(适用的)回程链路波束之前的第二时间段之前，所述网络设备不发送所述第三指示信息。
在一些实施例中，所述第二时间段包括所述转发器应用所述第三指示信息所需要的时间。
关于第三指示信息请参考第一方面的实施例，此处不再赘述。
或者未图示，该方法包括：
所述网络设备在NCR波束失败恢复成功(的第三时间段)后，向所述NCR发送第一指示信息和/或第二指示信息和/或第三指示信息，所述第一指示信息用于用于指示/配置控制链路波束，所述第二指示信息用于指示回程链路波束，所述第三指示信息用于指示接入链路波束；例如第三时间段可以大于或等于前述第一时间段，但本申请实施例并不以此作为限制。
值得注意的是，以上附图8仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图8的记载。
以上仅对与本申请相关的各步骤或过程进行了说明，但本申请不限于此。本申请实施例的方法还可以包括其他步骤或者过程，关于这些步骤或者过程的具体内容，可以参考相关技术。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例， 也可以将以上各个实施例中的一种或多种结合起来。
第四方面的实施例
本申请实施例提供一种网络设备。
图9是本申请实施例的网络设备的一示意图，由于该网络设备解决问题的原理与第三方面的实施例的方法相同，因此其具体实施可以参照第三方面的实施例，内容相同之处不再重复说明。
如图9所示，本申请实施例的网络设备900包括：
发送单元901，其发送第三指示信息；在转发器具有(适用的)回程链路波束之前，或者转发器具有(适用的)回程链路波束之前的第二时间段之前，不发送所述第三指示信息；
或者，
发送单元901，在NCR波束失败恢复成功(的第三时间段)后，向所述NCR发送第一指示信息和/或第二指示信息和/或第三指示信息，所述第一指示信息用于用于指示/配置控制链路波束，所述第二指示信息用于指示回程链路波束，所述第三指示信息用于指示接入链路波束。
关于发送单元901以及各信息的实施方式可以参考第三方面的实施例，此处不再赘述。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。本申请实施例的网络设备900还可以包括其它部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图9中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
第五方面的实施例
本申请实施例提供了一种通信系统，图1是本申请实施例的通信系统的示意图，如图1所示，该通信系统100包括网络设备101、转发器102以及终端设备103，为简单起见，图1仅以一个网络设备、一个转发器以及一个终端设备为例进行说明，但本申请实施例不限于此。
在本申请实施例中，网络设备101和终端设备103之间可以进行现有的业务或者未来可实施的业务传输。例如，这些业务可以包括但不限于：增强的移动宽带(eMBB)、大规模机器类型通信(mMTC)、高可靠低时延通信(URLLC)和车联网(V2X)通信，等等。转发器102被配置为执行第一方面的实施例所述的转发控制方法，网络设备101被配置为执行第三方面的实施例所述的信息发送方法，其内容被合并于此，此处不再赘述。
本申请实施例还提供一种电子设备，该电子设备例如为转发器或者网络设备。
图6是本申请实施例的电子设备的构成示意图。如图6所示，电子设备600可以包括：处理器66(例如中央处理器CPU)和存储器620；存储器620耦合到处理器66。其中该存储器620可存储各种数据；此外还存储信息处理的程序630，并且在处理器66的控制下执行该程序630。
例如，处理器66可以被配置为执行程序而实现如第一方面的实施例所述的转发控制方法。
再例如，处理器66可以被配置为执行程序而实现如第三方面的实施例所述的信息发送方法。
此外，如图6所示，电子设备600还可以包括：收发机640和天线650等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，电子设备600也并不是必须要包括图6中所示的所有部件；此外，电子设备600还可以包括图6中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种计算机可读程序，其中当在转发器中执行所述程序时，所述程序使得计算机在所述转发器中执行第一方面的实施例所述的转发控制方法。
本申请实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在转发器中执行第一方面的实施例所述的转发控制方法。
本申请实施例还提供一种计算机可读程序，其中当在网络设备中执行所述程序时， 所述程序使得计算机在所述网络设备中执行第三方面的实施例所述的信息发送方法。
本申请实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在网络设备中执行第三方面的实施例所述的信息发送方法。
本申请以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。逻辑部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本申请还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述，但本领域技术人员应该清楚，这 些描述都是示例性的，并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改，这些变型和修改也在本申请的范围内。
本申请实施例包括以下附记：
1.一种转发控制方法，应用于转发器，其特征在于，所述方法包括：
所述转发器的移动终端(针对第一小区)进行波束失败(beam failure)检测；
在(所述第一小区)波束失败的情况下(所述转发器检测到波束失败的情况下)，所述转发器的转发单元(被期望)关闭/不进行转发(或者，不(被允许)开启/进行转发)。
2.根据附记1所述的方法，其中，所述第一小区是主小区Pcell或PScell或Scell。
3.根据附记1或2所述的方法，其中，所述方法还包括：
所述转发器(NCR/NCR-MT)进行(针对所述第一小区的)波束失败恢复(BFR)。
4.根据附记3所述的方法，其中，所述波束失败恢复包括：(在所述第一小区)进行随机接入，或者，(向第二小区)发送SR和/或用于BFR的MAC CE。
5.根据附记1至4任一项所述的方法，其中，所述方法还包括：
直到BFR成功(或者说在所述BFR成功之前)，所述NCR-Fwd(被期望)关闭/不进行转发(或者，不被允许开启/进行转发)。
6.根据附记1至5任一项所述的方法，其中，所述方法还包括：
在BFR成功后，(直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前))，所述转发器(采用第一波束)进行转发。
7.根据附记1至5任一项所述的方法，其中，所述方法还包括：
在第一PDCCH后的第一时间段后(例如，after 28 symbols from a last symbol of a first PDCCH reception in a search space set provided by recoverySearchSpaceId for which the UE detects a DCI format with CRC scrambled by C-RNTI or MCS-C-RNTI)，(直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用 所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前))，在NCR-Fwd(采用第一波束)进行转发。
8.根据附记7所述的方法，其中，所述第一PDCCH用于确定波束失败恢复成功和/或用于确定随机接入过程完成。
9.根据附记6至8任一项所述的方法，其中，所述第一波束和(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(最近一次)随机接入尝试/过程(或者说成功的随机接入尝试/过程)中使用的波束(包括(根据)最近一次PRACH transmission(所在/使用)的RO(RACH occasion)关联的SSB确定的波束)相同。
10.根据附记6至9任一项所述的方法，其中，所述第一波束包括下行波束(或者说接收波束，用于接收来自网络设备的(发送给NCR/NCR-MT的和/或待(NCR/NCR-Fwd)转发的)下行信号和/或信道)和/或上行波束(或者说发送波束，用于向网络设备发送(NCR/NCR-MT的和/或来自UE的/(由NCR/NCR-Fwd)向网络设备转发的)上行信号和/或信道)。
11.根据附记6至10任一项所述的方法，所述第一波束包括：与索引qnew相关的相同天线端口准共址参数(same antenna port quasi-collocation parameters as the ones associated with index qnew)(或者说，由该QCL参数确定的(下行)波束)和/或与最近一次PARCH传输相同的空间滤波器(a same spatial filter as for the last PRACH transmission)(或者说，由该spatial filter确定的(上行)波束)，和/或，(根据)最近一次PRACH transmission(所在/使用)的RO(RACH occasion)关联的SSB确定的(下行和/或上行)波束，和/或，用于接收所述第一PDCCH的下行波束，和/或用于发送所述最后一个PRACH(transmission)的上行波束。
12.根据附记6至11任一项所述的方法，所述第一波束用于在NCR-MT/C-link有或没有接收或发送的情况下进行转发。
13.根据附记6至12任一项所述的方法，所述第一波束是预定义的(例如，协议规定的或者根据预定义规则确定的)或者被指示的。
14.根据附记6至13任一项所述的方法，所述第一波束是回程链路波束(也就是说，用于回程链路或者用于转发)和/或控制链路波束(也就是说，用于控制链路或者用于所述转发器与网络设备之间的通信/信息交互)。
15.根据附记1至5任一项所述的方法，其中，所述方法还包括：
直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前)，所述NCR-Fwd(被期望)在所述波束失败恢复成功前关闭/不进行转发(或者，不被允许开启/进行转发)。
16.根据附记1至15任一项所述的方法，其中，所述方法还包括：
在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，所述转发器(采用第二波束)进行转发。
16a.根据附记1至16任一项所述的方法，其中，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，所述转发器采用第一波束或第三波束进行转发。
17.根据附记5至16a任一项所述的方法，其中，所述波束失败恢复成功，包括：
(针对CFRA)NCR-MT在由recoverySearchSpaceId提供的搜索空间(SS)中检测到由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI(格式)(或者说，在该SS接收到一个PDCCH传输,该PDCCH传输与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)),和/或，接收到第一PDCCH(第一PDCCH与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)，例如，在CFRA中，该第一PDCCH(NCR/NCR-MT)发送MsgA或PRACH之后，在RAR window期间被接收)，和/或，(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(非竞争的)随机接入过程(成功)完成(the Random Access procedure successfully completed)，和/或波束失败恢复(成功)完成；或者
(针对CBRA)NCR-MT在由recoverySearchSpaceId提供的搜索空间中检测到 由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI(格式)(或者说，在该SS接收到一个PDCCH传输,该PDCCH传输与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to))，和/或，接收到第一PDCCH(第一PDCCH与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)，例如，在2-step CBRA中，该第一PDCCH在(NCR/NCR-MT)发送MsgA之后，在4-step CBRA中，该第一PDCCH在(NCR/NCR-MT)发送Msg.3之后，在竞争解决window期间被接收)，竞争解决成功，和/或，(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(基于竞争的)随机接入过程(成功)完成(the Random Access procedure successfully completed)，和/或波束失败恢复(成功)完成。
18.根据附记6至17任一项所述的方法，其中，所述第一指示信息用于指示/配置控制链路波束(用于配置和/或激活(针对PDSCH和/或PDCCH和/或PUCCH和/或SRS的)TCI state/SRI(SpatialRelationInfo)。包括RRC信令，和/或MAC CE，和/或DCI)。
19.根据附记6至18任一项所述的方法，所述第一指示信息包括：
针对TCI state的MAC CE激活命令(或者说an activation for a TCI state)or(任意参数)tci-StatesPDCCH-ToAddList(-r17/r18)and/or tci-StatesPDCCH-ToReleaseList(-r17/r18)，和/或，
针对PUCCH-SpatialRelationInfo(-r17/r18)的PUCCH resource(s)，和/或PUCCH-SpatialRelationInfo(-r17/r18)的(MAC CE)激活命令，和/或，
(针对PDSCH配置的/PDSCH-Config中的)tci-StatesToAddModList(-r17/r18)和/或tci-StatesToReleaseList(-r17/r18)，和/或，
(针对PDSCH配置的/PDSCH-Config中的)dl-OrJointTCI-StateList(-r17/r18)和/或dl-OrJointTCI-StateToAddModList(-r17/r18)和/或dl-OrJointTCI-StateToReleaseList(-r17/r18)，和/或，
ul-TCI-ToAddModList，和/或，
(用于指示(或者说指示了)unified TCI的)第二DCI(例如，DCI format 1_1/1_2等)。
20.根据附记16至19任一项所述的方法，其中，所述方法还包括：
(根据所述第一指示信息和/或预定义规则)确定所述第二波束(包括上行波束和/或下行波束)(或者说，所述第二波束是预定义的(包括：(根据所述第一指示信息和/或预定义规则)确定))。
21.根据附记16至20任一项所述的方法，其中，所述第二波束包括：
由具有最小ID的CORESET的QCL假设确定的(下行)波束和/或由具有最小(PUCCH resource)ID的PUCCH(针对所述第一服务小区的配置的CORESET中)的空间关系确定的(上行)波束；和/或，
(由)被指示的统一TCI(unified TCI)(确定的下行和/或上行波束)。
22.根据附记6至17任一项所述的方法，其中，所述第二指示信息用于指示回程链路波束(例如，MAC CE)。
23.根据附记16或16a或22任一项所述的方法，其中，所述第二波束是所述第二指示信息指示的。
24.根据附记22所述的方法，其中，所述方法还包括：
(根据所述第二指示信息)确定所述第二波束。
25.根据附记6至17任一项所述的方法，所述第三指示信息用于指示接入链路波束。
26.根据附记6至17任一项所述的方法，所述第三指示信息包括：周期性的/半静态的(或者说由RRC信令提供的)接入链路波束指示，(用于激活接入链路波束指示的)激活命令(MAC CE/DCI)，用于配置/指示(NCR/NCR-MT监听)第一DCI的信息，(用于指示接入链路波束的)第一DCI。
27.根据附记1至26任一项所述的方法，其中，所述方法还包括：
在波束失败的情况下，所述NCR-MT不监听(或不接收)第一DCI(format)和/或第二DCI，所述第一DCI用于指示接入链路波束。
28.根据附记1至27任一项所述的方法，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成功之前)，所述NCR-MT不监听第一DCI(format)。
29.根据附记27或28所述的方法，其中，在BFR成功之后，所述NCR-MT(采用第一波束)监听第一DCI(format)。
30.根据附记27或28所述的方法，直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或 者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前)，所述NCR-MT不监听所述第一DCI(format)。
31.根据附记30所述的方法，接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，之后，所述NCR-MT监听所述第一DCI(format)。
32.根据附记1至26任一项所述的方法，其中，所述方法还包括：
在所述波束失败的情况下，所述NCR-MT监听第一DCI(format)，所述第一DCI用于指示接入链路波束。
33.根据附记1至27任一项所述的方法，其中，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成功之前)，所述NCR-MT监听第一DCI(format)。
34.根据附记1至33任一项所述的方法，其中，所述NCR-MT在所述波束失败和/或所述波束失败恢复之前监听第一DCI。
35.一种转发控制方法，应用于转发器，其特征在于，所述方法包括：
所述转发器的移动终端(针对第一小区)进行波束失败(beam failure)(或者说链路失败link failure)检测；
在波束失败的情况下，所述NCR-MT不监听(或不接收)第一DCI(format)和/或第二DCI，所述第一DCI用于指示接入链路波束；或者所述NCR-MT监听第一DCI(format)，所述第二DCI用于指示统一TCI状态。
36.一种转发器，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至35任一项所述的转发控制方法。
37.一种信息发送方法，应用于网络设备，其特征在于，所述方法包括：
所述网络设备在NCR波束失败恢复成功(的第三时间段)后，向所述NCR发送第一指示信息和/或第二指示信息和/或第三指示信息，
所述第一指示信息用于用于指示/配置控制链路波束，所述第二指示信息用于指示回程链路波束，所述第三指示信息用于指示接入链路波束。
38.一种网络设备，包括存储器和处理器，所述存储器存储有计算机程序，所述 处理器被配置为执行所述计算机程序而实现如附记37所述的信息发送方法。
1.一种转发控制方法，应用于转发器，其特征在于，所述方法包括：
所述转发器的移动终端(针对第一小区)进行波束失败(beam failure)(或者说链路失败link failure)检测；
在(第一小区)波束失败的情况下，所述转发器的转发单元(被期望/被允许)进行转发(或者，可以(或被允许)开启/进行转发)。
2.根据附记1所述的方法，其中，所述第一小区是Pcell或PScell或Scell。
3.根据附记1或2所述的方法，其中，所述方法还包括：所述转发器(NCR/NCR-MT)进行波束失败恢复(BFR)。
4.根据附记3所述的方法，其中，所述波束失败恢复包括：(在所述第一小区)发起随机接入，或者，(向第二小区)发送SR和/或用于BFR的MAC CE。
5.根据附记3或4所述的方法，其中，所述方法还包括:
(直到所述BFR成功(或者说在所述BFR成功之前))，所述NCR-Fwd(被期望/被允许)(采用第三波束)进行转发。
6.根据附记1至5任一项所述的方法，其中，所述方法还包括：
在所述BFR成功后，(直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前))，NCR-Fwd(被期望/被允许)(采用第三波束)进行转发。
7.根据附记1至5任一项所述的方法，其中，所述方法还包括：
在第一PDCCH后的第一时间段后(例如，after 28 symbols from a last symbol of a first PDCCH reception in a search space set provided by recoverySearchSpaceId for which the UE detects a DCI format with CRC scrambled by C-RNTI or MCS-C-RNTI)，(直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息 指示的波束)(或者说，在此之前))，NCR-Fwd(被期望/被允许)(采用第三波束)进行转发。
8.根据附记1至7中任一项所述的方法，其中，所述方法还包括：
在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，所述转发器(采用第二波束)进行转发。
8a.根据附记1至8任一项所述的方法，其中，在接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说应用上述指示信息指示的波束)，之后，所述转发器采用第二波束或第三波束进行转发。
9.根据附记5至8a任一项所述的方法，其中，所述波束失败恢复成功，包括：
(针对CFRA)NCR-MT在由recoverySearchSpaceId提供的搜索空间(SS)中检测到由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI(格式)(或者说，在该SS接收到一个PDCCH传输,该PDCCH传输与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)),和/或，接收到第一PDCCH(第一PDCCH与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)，例如，在CFRA中，该第一PDCCH(NCR/NCR-MT)发送MsgA或PRACH之后，在RAR window期间被接收)，和/或，(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(非竞争的)随机接入过程(成功)完成(the Random Access procedure successfully completed)，和/或波束失败恢复(成功)完成；或者
(针对CBRA)NCR-MT在由recoverySearchSpaceId提供的搜索空间中检测到由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI(格式)(或者说，在该SS接收到一个PDCCH传输,该PDCCH传输与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to))，和/或，接收到第一PDCCH(第一PDCCH与C-RNTI或MCS-C-RNTI或针对NCR的RNTI相关(addressed to)，例如，在2-step  CBRA中，该第一PDCCH在(NCR/NCR-MT)发送MsgA之后，在4-step CBRA中，该第一PDCCH在(NCR/NCR-MT)发送Msg.3之后，在竞争解决window期间被接收)，竞争解决成功，和/或，(所述波束失败恢复中，或者说用于所述波束失败恢复的，或者说针对所述波束失败恢复初始化的)(基于竞争的)随机接入过程(成功)完成(the Random Access procedure successfully completed)，和/或波束失败恢复(成功)完成。
10.根据附记6至9任一项所述的方法，所述第一指示信息用于指示/配置控制链路波束(用于配置和/或激活(针对PDSCH和/或PDCCH和/或PUCCH和/或SRS的)TCI state/SRI(SpatialRelationInfo)。包括RRC信令，和/或MAC CE，和/或DCI)。
11.根据附记6至10任一项所述的方法，所述第一指示信息包括：
针对TCI state的MAC CE激活命令(或者说an activation for a TCI state)or(任意参数)tci-StatesPDCCH-ToAddList(-r17/r18)and/or tci-StatesPDCCH-ToReleaseList(-r17/r18)，和/或，
针对PUCCH-SpatialRelationInfo(-r17/r18)的PUCCH resource(s)，和/或PUCCH-SpatialRelationInfo(-r17/r18)的(MAC CE)激活命令，和/或，
(针对PDSCH配置的/PDSCH-Config中的)tci-StatesToAddModList(-r17/r18)和/或tci-StatesToReleaseList(-r17/r18)，和/或，
(针对PDSCH配置的/PDSCH-Config中的)dl-OrJointTCI-StateList(-r17/r18)和/或dl-OrJointTCI-StateToAddModList(-r17/r18)和/或dl-OrJointTCI-StateToReleaseList(-r17/r18)，和/或，
ul-TCI-ToAddModList，和/或，
(用于指示(或者说指示了)unified TCI的)第二DCI(例如，DCI format 1_1/1_2等)。
12.根据附记6至11任一项所述的方法，其中，所述方法还包括：
(根据所述第一指示信息和/或预定义规则)确定所述第二波束(包括上行波束和/或下行波束)(或者说，所述第二波束是预定义的(包括：(根据所述第一指示信息和/或预定义规则)确定))。
13.根据附记8至12任一项所述的方法，其中，所述第二波束包括：
由具有最小ID的CORESET的QCL假设确定的(下行)波束和/或由具有最小 (PUCCH resource)ID的PUCCH(针对所述第一服务小区的配置的CORESET中)的空间关系确定的(上行)波束；和/或，
(由)被指示的统一TCI(unified TCI)(确定的下行和/或上行波束)。
14.根据附记8至9任一项所述的方法，其中，所述第二指示信息用于指示回程链路波束(例如，MAC CE)。
15.根据附记8或8a或14任一项所述的方法，其中，所述第二波束是所述第二指示信息指示的。
16.根据附记6至9任一项所述的方法，其中，所述方法还包括：
(根据所述第二指示信息)确定所述第二波束。
17.根据附记6至9任一项所述的方法，所述第三指示信息用于指示接入链路波束。
18.根据附记6至9任一项所述的方法，所述第三指示信息包括：周期性的/半静态的(或者说由RRC信令提供的)接入链路波束指示，(用于激活接入链路波束指示的)激活命令(MAC CE/DCI)，用于配置/指示(NCR/NCR-MT监听)第一DCI的信息，(用于指示接入链路波束的)第一DCI。
19.根据附记1至18任一项所述的方法，其中，所述方法还包括：
在波束失败的情况下，所述NCR-MT不监听(或不接收)第一DCI(format)和/或第二DCI，所述第一DCI用于指示接入链路波束。
20.根据附记1至19任一项所述的方法，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成功之前)，所述NCR-MT不监听第一DCI(format)。
21.根据附记19或20所述的方法，其中，在BFR成功之后，所述NCR-MT监听第一DCI(format)。
22.根据附记19或20所述的方法，其中，直到接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)(或者说，在此之前)，所述NCR-MT不监听所述第一DCI(format)。
23.根据附记22所述的方法，接收到第一指示信息(控制链路波束指示/配置)和/或第二指示信息(或者说回程链路波束配置/指示)和/或第三指示信息(或者说接 入链路波束配置/指示)，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息(或者说应用上述指示信息指示的波束)，之后，所述NCR-MT监听所述第一DCI(format)。
24.根据附记1至18任一项所述的方法，还包括：
在所述波束失败的情况下，所述NCR-MT监听第一DCI(format)，所述第一DCI用于指示接入链路波束。
25.根据附记1至19任一项所述的方法，其中，在波束失败恢复过程中(或者说直到BFR成功，或者BFR成功之前)，所述NCR-MT监听第一DCI(format)。
26.根据附记1至25任一项所述的方法，其中，所述NCR-MT在所述波束失败和/或所述波束失败恢复之前监听所述第一DCI。
27.一种转发器，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至26任一项所述的转发控制方法。
1.一种转发控制方法，应用于转发器，其特征在于，所述方法包括：
所述转发器(针对第一小区)进行波束失败(beam failure)(或者说链路失败link failure)检测；
(第一小区)波束失败的情况下，所述转发器的移动终端(NCR-MT)进行波束失败恢复(BFR)。
在所述BFR失败(或者说，存在随机接入问题)的情况下，所述转发器的转发单元(NCR-Fwd)不进行转发。
2.一种转发控制方法，应用于转发器，其特征在于，所述方法包括：
所述转发器接收第三指示信息；或者，
在所述转发器具有(适用的)回程链路波束之前，所述转发器不期望接收到所述第三指示信息和/或所述转发器不(被期望)应用所述第三指示信息。
3.根据附记2所述的方法，其中，所述转发器具有(适用的)回程链路波束之前，所述方法包括：
在(根据预定义规则和/或第一指示信息)确定了回程链路波束(或者，接收到第一指示信息)之前，和/或，
应用(根据预定义规则和/或第一指示信息)确定的回程链路波束之前，和/或
在被配置/指示了回程链路波束(或者，接收到第二指示信息)之前，和/或
应用被指示的回程链路波束(或者应用第二指示信息)之前。
4.一种转发器，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1或2或3所述的转发控制方法。
5.一种信息发送方法，应用于网络设备，其特征在于，所述方法包括：
所述网络设备发送第三指示信息；或者，
在转发器具有(适用的)回程链路波束之前，或者转发器具有(适用的)回程链路波束之前的第二时间段之前，所述网络设备不发送所述第三指示信息。
6.根据附记5所述的方法，其中，所述第二时间段包括所述转发器应用所述第三指示信息所需要的时间。
7.根据附记5所述的方法，其中，所述第三指示信息用于指示接入链路波束。
8.根据附记5所述的方法，其中，所述第三指示信息包括：周期性的/半静态的(或者说由RRC信令提供的)接入链路波束指示，(用于激活接入链路波束指示的)激活命令(MAC CE/DCI)，用于配置/指示(NCR/NCR-MT监听)第一DCI的信息，(用于指示接入链路波束的)第一DCI。
9.一种网络设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记5至8任一项所述的信息发送方法。

Claims (20)

  1. 一种转发器，其特征在于，所述转发器包括：
    移动终端(NCR-MT)，其进行波束失败(beam failure)检测；
    转发单元(NCR-Fwd)，其在波束失败的情况下，关闭/不进行转发。
  2. 根据权利要求1所述的转发器，其中，所述移动终端进行波束失败恢复(BFR)。
  3. 根据权利要求1所述的转发器，其中，直到BFR成功，所述NCR-Fwd关闭/不进行转发。
  4. 根据权利要求1所述的转发器，其中，在BFR成功后，所述转发单元进行转发。
  5. 根据权利要求1所述的转发器，其中，在第一PDCCH后的第一时间段后，所述转发单元。
  6. 根据权利要求5所述的转发器，其中，所述第一PDCCH用于确定波束失败恢复成功和/或用于确定随机接入过程完成。
  7. 根据权利要求4或5所述的转发器，其中，所述转发单元采用第一波束进行转发，所述第一波束和随机接入尝试/过程中使用的波束相同。
  8. 根据权利要求4或5所述的转发器，其中，所述转发单元采用第一波束进行转发，所述第一波束包括下行波束和/或上行波束。
  9. 根据权利要求4或5所述的转发器，所述转发单元采用第一波束进行转发，所述第一波束包括：与索引qnew相关的相同天线端口准共址参数和/或与最近一次PARCH传输相同的空间滤波器，和/或，最近一次PRACH transmission的RO(RACH occasion)关联的SSB确定的波束，和/或，用于接收第一PDCCH的下行波束，和/或用于发送最后一个PRACH的上行波束。
  10. 根据权利要求4或5所述的转发器，所述转发单元采用第一波束进行转发，所述第一波束是预定义的或者被指示的。
  11. 根据权利要求1所述的转发器，其中，直到接收到第一指示信息和/或第二指示信息和/或第三指示信息，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息，所述NCR-Fwd在所述波束失败恢复成功前关闭/不进行转发。
  12. 根据权利要求1所述的转发器，其中，在接收到第一指示信息和/或第二指示信息和/或第三指示信息，和/或，应用所述第一指示信息和/或第二指示信息和/或第三 指示信息，之后，所述转发单元进行转发。
  13. 根据权利要求1所述的转发器，其中，在接收到第一指示信息和/或第二指示信息和/或第三指示信息，和/或，应用所述第一指示信息和/或第二指示信息和/或第三指示信息之后，所述转发单元采用第一波束或第三波束进行转发。
  14. 根据权利要求2所述的转发器，其中，所述波束失败恢复成功，包括：
    NCR-MT在由recoverySearchSpaceId提供的搜索空间(SS)中检测到由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI,和/或，接收到第一PDCCH，和/或，随机接入过程完成，和/或波束失败恢复完成；或者
    NCR-MT在由recoverySearchSpaceId提供的搜索空间中检测到由C-RNTI或MCS-C-RNTI或针对NCR的RNTI进行CRC加扰的DCI，和/或，接收到第一PDCCH，竞争解决成功，和/或，随机接入过程完成，和/或波束失败恢复完成。
  15. 根据权利要求11或12所述的转发器，其中，所述第一指示信息用于指示/配置控制链路波束。
  16. 根据权利要求11或12所述的转发器，所述第一指示信息包括：
    针对TCI state的MAC CE激活命令或tci-StatesPDCCH-ToAddList(-r17/r18)和/或tci-StatesPDCCH-ToReleaseList(-r17/r18)，和/或，
    针对PUCCH-SpatialRelationInfo(-r17/r18)的PUCCH resource(s)，和/或PUCCH-SpatialRelationInfo(-r17/r18)的激活命令，和/或，
    tci-StatesToAddModList(-r17/r18)和/或tci-StatesToReleaseList(-r17/r18)，和/或，
    dl-OrJointTCI-StateList(-r17/r18)和/或dl-OrJointTCI-StateToAddModList(-r17/r18)和/或dl-OrJointTCI-StateToReleaseList(-r17/r18)，和/或，
    ul-TCI-ToAddModList，和/或，
    第二DCI。
  17. 根据权利要求11或12所述的转发器，其中，所述第二指示信息用于指示回程链路波束。
  18. 根据权利要求11或12所述的转发器，所述第三指示信息用于指示接入链路波束。
  19. 根据权利要求11或12所述的转发器，所述第三指示信息包括：周期性的/半静态的接入链路波束指示，激活命令，用于配置/指示第一DCI的信息，第一DCI。
  20. 一种通信系统，包括：权利要求1所述的转发器。
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