WO2023236022A1 - 一种通信方法、装置和系统 - Google Patents

一种通信方法、装置和系统 Download PDF

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Publication number
WO2023236022A1
WO2023236022A1 PCT/CN2022/097238 CN2022097238W WO2023236022A1 WO 2023236022 A1 WO2023236022 A1 WO 2023236022A1 CN 2022097238 W CN2022097238 W CN 2022097238W WO 2023236022 A1 WO2023236022 A1 WO 2023236022A1
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WIPO (PCT)
Prior art keywords
timing
frequency band
module
signal
carrier
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PCT/CN2022/097238
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English (en)
French (fr)
Inventor
蒋琴艳
张磊
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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/CN2022/097238 priority Critical patent/WO2023236022A1/zh
Publication of WO2023236022A1 publication Critical patent/WO2023236022A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems

Definitions

  • This application relates to the field of communications.
  • 5G (fifth generation mobile communication technology) systems can provide greater bandwidth and higher data rates, and can support more types of terminals and vertical services. For this reason, the frequency band range/working bandwidth supported by the 5G system is significantly larger than that of the 2G, 3G and 4G systems, and the 5G system supports higher carrier frequencies. For example, 5G systems can be deployed in the millimeter wave band.
  • Radio frequency transponders are widely used in the actual deployment of 2G systems, 3G systems and 4G systems. Their advantages are low cost, easy deployment, and not adding too much delay.
  • a radio frequency transponder is a device that amplifies and forwards signals to and from devices in the radio frequency domain. That is, RF transponders are a non-regenerative type of relay node, they simply amplify and forward all received signals directly.
  • traditional radio frequency transponders do not have communication functions. In other words, traditional radio frequency transponders cannot exchange information with other devices (such as base stations/terminal devices, etc.). Specifically, in terms of reception, traditional radio frequency transponders do not support measurement/demodulation/decoding, etc. of the received signal. In terms of transmission, traditional RF transponders only amplify and forward received RF signals, and do not support generating signals and transmitting self-generated signals.
  • the work-related configuration of traditional radio frequency transponders are not controlled by the network and are usually manually set or adjusted.
  • the antenna direction is usually set and adjusted manually during initial installation so that the antenna on the base station side points to the direction of the incoming wave from the base station, and the antenna on the terminal side points to the place where enhanced deployment is required.
  • the 5G system uses more advanced and complex MIMO (Multiple Input Multiple Output) technology.
  • MIMO Multiple Input Multiple Output
  • directional antennas have become basic components of base stations and terminal equipment.
  • Sending and receiving signals based on beam forming technology is the basic signal transmission method in the 5G system.
  • the (analog) beam direction, width (size), etc. of the base station and terminal equipment may change dynamically due to factors such as location changes (that is, beam switching).
  • the antenna of a traditional radio frequency transponder cannot dynamically adjust the direction and the beam is wide.
  • the beam direction and beam width of its transceiver antenna cannot flexibly match the positions of the base station and terminal equipment and the dynamic changes of the beam direction and width of the transceiver antenna.
  • Figure 1 is an example of the transceiver antenna of a radio frequency transponder deployed in a 5G system.
  • a radio frequency transponder is configured in a 5G system.
  • it may be due to the beam direction and beam of its transceiver antenna.
  • the width does not match the dynamic changes in the beam direction and width of the transmitting and receiving antennas of the base station and terminal equipment, and the performance/effect of amplifying/enhancing the target signal is not significant.
  • it may also be due to the use of a wider transmitting beam, which also affects a larger range.
  • Other devices within the network (such as base stations or terminal equipment) cause significant interference, increasing the noise and interference levels of the entire system, thereby reducing network throughput.
  • the network (base station) can perform some control on the work-related configuration of the radio frequency transponder.
  • Configuration such as antenna direction (beam direction and/or width (or size)), forwarding direction, switch status, amplification gain, etc. That is to say, the radio frequency transponder has a communication function to receive (demodulate/measure/decode/interpret, etc.) information sent by the network (base station), and/or send information to the network (base station).
  • embodiments of the present application provide a communication method, device and system to support information interaction between network equipment (base station) and radio frequency transponders, so that the radio frequency transponder can work while supporting the above information interaction.
  • the radio frequency transponder In the embodiment of the present application, it relates to the timing used by the radio frequency transponder to send and receive signals when supporting information interaction with the network.
  • a communication device configured in a repeater, and the device includes a first module and a first module, wherein,
  • the first module acquires a first timing, which is at least used by the first module to receive a signal from a first network device in a first frequency band, and/or the first module acquires a second timing, The second timing is at least used by the first module to send a signal to the first network device in a first frequency band;
  • the first module acquires a third timing that is at least used by the second module to receive a third signal from a second network device in a second frequency band, the third signal being forwarded, and/ Or, the first module obtains a fourth timing, which is at least used by the second module to forward the processed fourth signal from the terminal device to the second network device in the second frequency band;
  • the first frequency band and the second frequency band do not overlap in the frequency domain.
  • One of the beneficial effects of the embodiments of the present application is that: according to the embodiments of the present application, by obtaining the first timing and/or the second timing, communication (information exchange) between the transponder and the base station (first network device) can be achieved, In addition, by acquiring the third timing and/or the fourth timing, the repeater can be implemented to forward the signal between the base station (second network device) and the terminal device.
  • Figure 1 is a schematic diagram of an example of a transceiver antenna of a radio frequency transponder deployed in a 5G system;
  • Figure 2 is a schematic diagram of an example of NCR
  • Figure 3 is a schematic diagram of an example of an implementation scenario of the embodiment of the present application.
  • Figure 4 is a schematic diagram of the relationship between NCR links and frequency range
  • Figure 5 is a schematic diagram of the communication method according to the embodiment of the present application.
  • Figure 6 is a schematic diagram of the network architecture corresponding to the method in Figure 5;
  • Figure 7 is another schematic diagram of the network architecture corresponding to the method in Figure 5;
  • Figure 8 is a schematic diagram of timing advance
  • Figure 9 is a schematic diagram of an example of the relationship in frequency between a frequency range (FR) and a frequency band (band) within the frequency range;
  • Figure 10 is a schematic diagram of an example of the relationship in frequency between a frequency band and a carrier in the frequency band;
  • Figure 11 is a schematic diagram of an example of a transponder receiving a signal according to the method of an embodiment of the present application
  • Figure 12 is a schematic diagram of another example of a transponder receiving a signal according to the method of an embodiment of the present application.
  • Figure 13 is a schematic diagram of an example of a transponder sending a signal according to the method of an embodiment of the present application
  • Figure 14 is a schematic diagram of another example of a transponder receiving a signal according to the method of an embodiment of the present application.
  • Figure 15 is a schematic diagram of an example of a repeater forwarding a signal according to the method of an embodiment of the present application
  • Figure 16 is a schematic diagram of a communication device according to an embodiment of the present application.
  • Figure 17 is a schematic diagram of a transponder according to an embodiment of the present application.
  • Figure 18 is a schematic diagram of a network device 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 temporal order of these elements, and these elements should not be used by these terms. restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprises,” “includes,” “having” and the like refer to the presence of stated features, elements, elements or components but do not exclude the presence or addition of one or more other features, elements, elements 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, Long Term Evolution), Long Term Evolution Enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Enhanced
  • LTE-A Long Term Evolution Enhanced
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to the communication protocol at any stage.
  • it can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and the future. 5G, New Wireless (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • Network device refers to a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device.
  • Network equipment may include but is not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transceiver node (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, wireless network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc. In addition, it may also include remote radio head (RRH, Remote Radio Head), remote End wireless unit (RRU, Remote Radio Unit), relay or low-power node (such as femto, pico, etc.). And the term “base station” may include some or all of their functions, each of which may provide communications coverage to a specific geographic 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 a device that accesses a communication network through a network device and receives network services, and may also be called a "Terminal Equipment” (TE, Terminal Equipment).
  • Terminal equipment can be fixed or mobile, and can also be called mobile station (MS, Mobile Station), terminal, user, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc. wait.
  • Terminal devices may include, but are not limited to, the following devices: Cellular Phone, Personal Digital Assistant (PDA), wireless modem, wireless communication device, handheld device, machine-type communication device, laptop computer, cordless phone , smartphones, smart watches, digital cameras, and more.
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine-type communication device
  • laptop computer machine-type communication device
  • cordless phone smartphones, smart watches, digital cameras, and more.
  • the terminal device can also be a machine or device for monitoring or measuring.
  • the terminal device can include but is not limited to: Machine Type Communication (MTC) terminals, Vehicle communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • the radio frequency repeater with the aforementioned communication function may be called NCR (network-controlled repeater) or SR (smart repeater), etc., but is not limited thereto.
  • FIG. 2 is a schematic diagram of an example of the NCR.
  • the NCR 21 is functionally divided into two parts: NCR-MT (Mobile Termination) 211 and NCR-Fwd (Forwarding) 212.
  • the NCR-MT211 is used to communicate with the gNB 22 through a control link (C-link, Control link) for information interaction.
  • the interactive information includes, for example, side control information (side control information).
  • the control link is based on NR. Uu interface, and the control information on this side is at least used to control NCR-Fwd 212.
  • the NCR-Fwd 212 is used to perform UL (Uplink) and/or DL between the gNB 22 and the UE 23 through the backhaul link (B-link, Backhaul link) and access link (A-link, Access link) Amplify-and-forwarding (downlink) radio frequency signal (RF signal), the behavior of the NCR-Fwd 212 is controlled according to the side control information and/or other information received from the gNB 22.
  • the number of gNB 22 and UE 23 may be one or more respectively.
  • the gNB that communicates with the NCR-MT and the gNB that is amplified and forwarded the corresponding radio frequency signal by the NCR-Fwd may or may not have an intersection.
  • NR supports a larger frequency range.
  • multiple frequency ranges are defined, for example, FR1 and FR2.
  • FR2 can be further divided into FR2-1 and FR2-2.
  • high frequency such as FR2
  • FR2 high frequency
  • FR2 high frequency
  • NCR may only be used to amplify and forward high-frequency signals, but not amplify and forward low-frequency signals.
  • FIG. 3 is a schematic diagram of an example of an implementation scenario of the embodiment of the present application.
  • NCR 31 communicates with the first gNB 32 through a control link (C-link) to achieve information interaction, where the control link Route based on NR Uu interface.
  • the NCR 31 can also perform UL (uplink)/DL (downlink) radio frequency signal amplification and forwarding between the second gNB 34 and the UE 33 through the backhaul link (Backhaul link) and the access link (Access link), such as Operations such as amplification and forwarding can be performed based on the information received from the first gNB 32.
  • C-link control link
  • the NCR 31 can also perform UL (uplink)/DL (downlink) radio frequency signal amplification and forwarding between the second gNB 34 and the UE 33 through the backhaul link (Backhaul link) and the access link (Access link), such as Operations such as amplification and forwarding can be performed based on the information received from the first gNB 32.
  • the NCR 31 performs amplification and forwarding operations of signals between the second gNB 34 and the UE 33 at high frequencies (such as FR2), and performs signal amplification and forwarding operations with the first gNB 32 at low frequencies (such as FR1). Communication operation, but the application is not limited to this.
  • the scenario in Figure 3 is just an example.
  • the NCR 31 can also perform amplification and forwarding operations of the signal between the first gNB 32 and the UE 33 at a low frequency (such as FR1), and/ Or the communication operation with the first gNB 32 is performed at a high frequency (such as FR2); for another example, the second gNB 34 and the first gNB 32 can also be the same, etc.
  • the first gNB 32 and the second gNB 34 may be the same network device, or they may be different network devices.
  • the meaning of the network device has been explained previously and will not be described again here.
  • Figure 4 is a schematic diagram of the relationship between NCR links and frequency ranges.
  • the frequency range involved in the control link is FR1 or FR1 and FR2. That is to say, NCR-MT can receive at FR1 or FR1 and FR2. and/or transmit physical signals; the frequency range involved in the backhaul link and access link is FR2, that is to say, NCR-Fwd amplifies and transmits the radio frequency signal in FR2.
  • the embodiment of this application provides a communication method.
  • Figure 5 is a schematic diagram of a communication method according to an embodiment of the present application. As shown in Figure 5, the method includes:
  • the first module of the transponder acquires the first timing, which is at least used for the first module to receive the signal from the first network device in the first frequency band, and/or the first module of the transponder The module acquires a second timing, which is at least used by the first module to send a signal to the first network device in a first frequency band;
  • the first module obtains a third timing, which is used at least for the second module of the transponder to receive a third signal from the second network device in the second frequency band, and the third signal is used for be forwarded, and/or, the first module acquires a fourth timing, which is at least used by the second module to forward the processed fourth signal from the terminal device to the third signal in the second frequency band.
  • a third timing which is used at least for the second module of the transponder to receive a third signal from the second network device in the second frequency band, and the third signal is used for be forwarded
  • the first module acquires a fourth timing, which is at least used by the second module to forward the processed fourth signal from the terminal device to the third signal in the second frequency band.
  • Two network devices; the first frequency band and the second frequency band do not overlap in the frequency domain.
  • the first timing and/or the second timing are used for the first module of the transponder to communicate with the network device (first network device) in the first frequency band; the third timing and/or the fourth timing are used for The second module of the repeater forwards the signal (radio frequency signal) between the network device (second network device) and the terminal device in the second frequency band.
  • the second module of the repeater forwards the signal (radio frequency signal) between the network device (second network device) and the terminal device in the second frequency band.
  • the first frequency band and the second frequency band do not overlap in the frequency domain, and the transponder can work in a network deployment scenario in which different frequency bands are used for basic coverage and hotspot coverage respectively.
  • the first frequency band is at low frequency for basic coverage
  • the second frequency band is at high frequency for hotspot coverage
  • the first module of the transponder communicates with the network in the first frequency band
  • the network passes side control information and /or other information controls how/whether the second module of the transponder amplifies and transmits the radio signal in the second frequency band to expand the hotspot coverage.
  • the first module is at least used to receive and/or send physical signals, such as synchronization signals (such as PSS, SSS), physical layer broadcast channels (such as PBCH), reference signals (such as CSI-RS, TRS, SRS, PRS, DMRS, PT-RS), physical layer control channels (such as PDCCH, PUCCH), physical layer data channels (such as PDSCH, PUSCH), etc.
  • the first module is, for example, a mobile terminal (MT) of a transponder, such as the aforementioned NCR-MT.
  • the first module may also be called by other names.
  • the second module is at least used to amplify and transmit radio frequency signals.
  • the second module is, for example, a forwarding module/unit of a transponder, such as the aforementioned NCR-Fwd.
  • the second module may also be called by other names.
  • the second module is used only to amplify and forward radio frequency signals.
  • the second module in addition to amplifying and transmitting radio signals, is also used to receive and/or transmit physical signals, such as synchronization signals (such as PSS, SSS), physical layer broadcast channels (such as PBCH), reference signals (such as CSI-RS, TRS, SRS, PRS, DMRS, PT-RS), physical layer control channel (such as PDCCH, PUCCH), physical layer data channel (such as PDSCH, PUSCH), etc.
  • synchronization signals such as PSS, SSS
  • physical layer broadcast channels such as PBCH
  • reference signals such as CSI-RS, TRS, SRS, PRS, DMRS, PT-RS
  • physical layer control channel such as PDCCH, PUCCH
  • PDSCH PDSCH
  • PUSCH physical layer data channel
  • the third signal being forwarded means that the third signal is processed by the repeater and then forwarded.
  • the processing includes amplification.
  • the repeater receives the third signal (that is, the third signal) in the radio frequency domain.
  • the third signal is a radio frequency signal), and the third signal is amplified and then forwarded.
  • the fourth signal comes from the terminal device and is a signal processed by the transponder.
  • the processing here also includes amplification.
  • the repeater receives a signal from the terminal device, amplifies the signal, obtains a fourth signal, and forwards the fourth signal to the second network device.
  • Figure 6 is a schematic diagram of the network architecture corresponding to the method of Figure 5.
  • the first module is NCR-MT and the second module is NCR-Fwd as an example.
  • NCR-MT obtains the first timing/second timing/third timing/fourth timing
  • NCR-MT uses the first timing to receive signals from the first network device in the first frequency band, and uses the second timing
  • the signal is sent to the first network device in the first frequency band.
  • the NCR-Fwd uses the third timing to receive the third signal from the second network device in the second frequency band. After processing the third signal, the signal is processed in the second frequency band.
  • the third signal is forwarded to the UE.
  • the NCR-Fwd also receives the fourth signal from the UE in the second frequency band. After processing the fourth signal, the fourth timing is used to transmit the processed fourth signal in the second frequency band. Forwarded to the second network device.
  • the transponder is used as an example to transmit signals in the second frequency band.
  • the transponder can also transmit signals in the first frequency band.
  • the signal is transmitted in the first frequency band.
  • Operations can be incorporated into the second module or implemented through other modules (third modules) independent of the second module.
  • the repeater includes two forwarding modules (NCR-Fwd).
  • the first forwarding module is used for signal forwarding in the first frequency band
  • the second forwarding module is used for signal forwarding in the second frequency band.
  • the third module is used only to amplify and forward radio frequency signals.
  • the third module in addition to amplifying and transmitting radio signals, is also used to receive and/or transmit physical signals, such as synchronization signals (such as PSS, SSS), physical layer broadcast channels (such as PBCH), reference signals (such as CSI-RS, TRS, SRS, PRS, DMRS, PT-RS), physical layer control channel (such as PDCCH, PUCCH), physical layer data channel (such as PDSCH, PUSCH), etc.
  • synchronization signals such as PSS, SSS
  • physical layer broadcast channels such as PBCH
  • reference signals such as CSI-RS, TRS, SRS, PRS, DMRS, PT-RS
  • physical layer control channel such as PDCCH, PUCCH
  • PDSCH PDSCH
  • PUSCH physical layer data channel
  • the first timing and/or the second timing are also used for the second module or the third module of the repeater to transmit signals between the network device (first network device) and the terminal device in the first frequency band. (radio frequency signal) is forwarded.
  • the first timing is also for the second module or the third module of the repeater to receive the first signal from the first network device in the first frequency band, the first signal is intended to be forwarded, and/or the second timing is also for The second module or the third module is configured to forward the processed second signal from the terminal device to the first network device in the first frequency band.
  • the first signal being forwarded means that the first signal is processed by the repeater and then forwarded.
  • the processing includes amplification.
  • the repeater receives the first signal (that is, the first signal) in the radio frequency domain.
  • the first signal is a radio frequency signal), the first signal is amplified and then forwarded.
  • the second signal comes from the terminal device and is a signal processed by the transponder.
  • the processing here also includes amplification.
  • the repeater receives a signal from the terminal device, amplifies the signal, obtains a second signal, and forwards the second signal to the first network device.
  • Figure 7 is another schematic diagram of the network architecture corresponding to the method of Figure 5.
  • the first module is NCR-MT and the second module is NCR-Fwd as an example.
  • NCR-MT obtains the first timing/second timing/third timing/fourth timing
  • NCR-MT uses the first timing to receive signals from the first network device in the first frequency band, and uses the second timing
  • the signal is sent to the first network device in the first frequency band.
  • the NCR-Fwd uses the third timing to receive the third signal from the second network device in the second frequency band. After processing the third signal, the signal is processed in the second frequency band.
  • the third signal is forwarded to the UE.
  • the NCR-Fwd also receives the fourth signal from the UE in the second frequency band. After processing the fourth signal, the fourth timing is used to transmit the processed fourth signal in the second frequency band. Forwarded to the second network device.
  • NCR-Fwd uses the first timing to receive the first signal from the first network device in the first frequency band, processes the first signal, and forwards the processed first signal to the UE in the first frequency band.
  • NCR -Fwd also receives a second signal from the UE in the first frequency band, processes the second signal, and forwards the processed second signal to the first network device in the first frequency band using the second timing.
  • the transponder communicates with the network device (first network device) in the first frequency band as an example.
  • the transponder can also communicate with the network device (second network device) in the second frequency band. network device), wherein the operation of communicating in the second frequency band may be incorporated into the first module, or may be implemented by another module (fourth module) independent of the first module.
  • the repeater includes two mobile terminals (NCR-MT), a first mobile terminal is used to communicate with the network device in a first frequency band, and a second mobile terminal is used to communicate with the network device in a second frequency band. That is, the first module includes the first mobile terminal and the second mobile terminal; or the first module includes the first mobile terminal, and another module (the fourth module) independent of the second module includes the second mobile terminal.
  • the third timing and/or the fourth timing are also used for the first module or the fourth module of the repeater to communicate with the network device (second network device) in the second frequency band.
  • the third timing is also used for the first module or the fourth module of the repeater to receive the signal from the second network device in the second frequency band
  • the fourth timing is also used for the first module or the fourth module to receive the signal from the second network device in the second frequency band.
  • the second frequency band sends signals to the network device (second network device).
  • the first network device and the second network device may be the same or different.
  • the first network device may be the first gNB 32
  • the second network device may be the second gNB 34, but the application is not limited to this.
  • the first network device and the second The network devices can be both the first gNB 32 or both the second gNB 34.
  • the first timing is a reference timing for the second timing. That is, the repeater (eg, NCR-MT) determines the second timing based on the first timing.
  • the first timing is downlink frame timing (downlink frame timing) or downlink reception timing
  • the second timing is uplink frame timing (uplink frame timing) or uplink transmission timing, which is earlier than the first timing (such as Timing Advance TA )
  • the transponder can determine the second timing based on the first timing and the timing advance.
  • FIG. 8 is a schematic diagram of the timing advance amount.
  • the timing advance amount is (N TA + N TA offset ) ⁇ T c , but the application is not limited thereto.
  • the third timing is the reference timing of the second timing, which has a similar meaning to the aforementioned "the first timing is the reference timing of the second timing", which will not be described again here.
  • the first timing is a reference timing to the fourth timing.
  • the meaning is similar to the aforementioned "the first timing is the reference timing of the second timing" and will not be described again here.
  • the third timing is a reference timing to the fourth timing.
  • the meaning is similar to the aforementioned "the first timing is the reference timing of the second timing" and will not be described again here.
  • the first timing is a reference timing for the third timing. That is, the transponder (eg, NCR-MT) determines the third timing based on the first timing.
  • the first timing is the first downlink frame timing (downlink frame timing) or the first downlink reception timing
  • the third timing is the second downlink frame timing (downlink frame timing) or the second downlink reception timing, relative to the third A certain timing offset
  • the transponder can determine the third timing based on the first timing and the offset.
  • the second timing is a reference timing to the fourth timing. That is, the repeater (eg, NCR-MT) determines the fourth timing based on the second timing.
  • the second timing is the first uplink frame timing (uplink frame timing) or the first uplink transmission timing
  • the fourth timing is the second uplink frame timing (uplink frame timing) or the second uplink transmission timing, relative to the second timing timing offset
  • the transponder can determine the third timing based on the second timing and the offset.
  • the MT of the repeater receives information indicating the second timing and/or the third timing and/or the fourth timing.
  • the information used to indicate the second timing and/or the third timing and/or the fourth timing refers to the information used by the transponder to determine the second timing and/or the third timing and/or the fourth timing, that is to say , the transponder needs to determine the second timing and/or the third timing and/or the fourth timing based on this information.
  • the information used to indicate the second timing includes information used by the repeater to determine a timing advance of the second timing relative to the first timing, and the repeater can determine the second timing based on the first timing and the timing advance.
  • the information used to indicate the fourth timing includes information used by the transponder to determine the timing advance of the fourth timing relative to the third timing, and then the transponder can determine the fourth timing according to the third timing and the timing advance.
  • the information used to indicate the fourth timing includes information used by the transponder to determine an offset of the fourth timing relative to the second timing, and then the transponder can determine the fourth timing according to the second timing and the offset.
  • the first timing and the third timing are the same or different.
  • the second timing and the fourth timing are the same or different.
  • the timing reference cells (timing reference cells) and/or the applied uplink timing advance (timing advance) of different frequency bands (or cells or carriers) are the same or different.
  • the timing reference cell is used to determine downlink timing and/or track changes in frame timing.
  • the repeater determines the first timing and/or the second timing based on the frame timing of the first timing reference cell.
  • the first timing is equal to the downlink frame timing (transponder reception) of the first timing reference cell
  • the second timing is determined based on the first timing and the corresponding timing advance.
  • the repeater determines the third timing and/or the fourth timing based on the frame timing of the second timing reference cell.
  • the third timing is equal to the downlink frame timing of the second timing reference cell
  • the fourth timing is determined based on the third timing and the corresponding timing advance.
  • the repeater (such as NCR-MT) needs to track (follow) the frame timing of the timing reference cell, and then adjust the first timing and/or the second timing and/or the third timing and/or the fourth timing accordingly.
  • the first timing reference cell and the second timing reference cell are the same or different.
  • the timing reference cell of the first frequency band (or cell or carrier) is the first cell.
  • the timing reference cell of the second frequency band (or cell or carrier) is the second cell or the first cell.
  • the first frequency band and the second frequency band may belong to different timing advance groups (TAG, Timing Advance Group or Timing Alignment Group).
  • TAG Timing Advance Group
  • the first frequency band and the second frequency band may belong to different timing advance groups (TAGs) of the MT.
  • TAGs timing advance groups
  • the concept of frequency band is also applicable if it is replaced by cell or carrier.
  • the first frequency band and the second frequency band may belong to different timing advance groups (TAG) of the first module.
  • TAG timing advance groups
  • timing reference cells timing reference cells
  • applied uplink timing advance timing advance
  • the first frequency band and the second frequency band may be located in different frequency ranges.
  • the first frequency band is located in the first frequency range
  • the second frequency band is located in the second frequency range.
  • the first frequency range and the second frequency range do not overlap in frequency, and each includes one or more operating bands.
  • the first frequency range is FR1 and the second frequency range is FR2.
  • the first frequency range is FR1 and the second frequency range is FR2-1.
  • the first frequency range is FR2-1, and the second frequency unit is FR2-2.
  • the subcarrier spacing (SCS) of the first frequency range and the second frequency range are different.
  • different means not exactly the same or completely different (no intersection).
  • the subcarrier spacing of the first frequency range may be 15kHz and/or 30kHz
  • the subcarrier spacing of the second frequency range may be 60kHz and/or 120kHz.
  • the subcarrier spacing of the first frequency range may be 15kHz and/or 30kHz and/or 60kHz
  • the subcarrier spacing of the second frequency range may be 60kHz and/or 120kHz.
  • the subcarrier spacing of a frequency range refers to the subcarrier spacing defined for the frequency range.
  • the subcarrier spacing defined for the frequency band within the first frequency range is a subset of the subcarrier spacing defined for the frequency range.
  • the subcarrier spacing (SCS) of the first frequency band and the second frequency band are different.
  • different means not exactly the same or completely different (no intersection).
  • the subcarrier spacing of the first frequency band may be 15kHz and/or 30kHz
  • the subcarrier spacing of the second frequency band may be 60kHz and/or 120kHz.
  • the subcarrier spacing of the first frequency band may be 15kHz and/or 30kHz and/or 60kHz
  • the subcarrier spacing of the second frequency band may be 60kHz and/or 120kHz.
  • the subcarrier spacing of a frequency band refers to the subcarrier spacing defined for the frequency band.
  • the subcarrier spacing of band n1/n2 is 15, 30, and 60kHz.
  • a carrier configured within the frequency band may use one or more subcarrier intervals among the subcarrier intervals defined for the frequency band (different BWPs in the carrier may use the same or different subcarrier intervals.)
  • the first frequency band includes a first carrier (or a first cell), and the first carrier (or a first cell) includes a first downlink carrier and/or a first uplink carrier.
  • the first frequency band includes the first carrier means that in terms of frequency, the first carrier is within the first frequency band. That is, the bandwidth of the first carrier is within the bandwidth of the first frequency band.
  • the first frequency band is TDD (Time Division Duplex) (unpaired) or FDD (Frequency Division Duplex) (paired) or SDL or SUL.
  • the first frequency band includes a first downlink frequency band and a first uplink frequency band
  • the first downlink frequency band includes a first downlink carrier
  • the first uplink frequency band includes a first uplink carrier.
  • the first frequency band includes the first cell, which means that the carrier of the first cell (including the first downlink carrier and/or the first uplink carrier) is within the first frequency band.
  • FIG. 9 is a schematic diagram of an example of the relationship in frequency between a frequency range (FR) and a frequency band (band) within the frequency range.
  • FIG. 10 is a schematic diagram illustrating an example of the relationship in frequency between a frequency band and a carrier in the frequency band.
  • the first downlink carrier and the first uplink carrier may be of the same frequency (that is, they are at the same position in the frequency domain), or they may be of different frequencies (that is, they do not overlap in the frequency domain). ).
  • the second frequency band includes a second carrier (or a second cell), and the second carrier (or a second cell) includes a second downlink carrier and/or a second uplink carrier.
  • the second frequency band includes the second carrier means that, in terms of frequency, the second carrier is within the second frequency band. That is, the bandwidth of the second carrier is within the bandwidth of the second frequency band.
  • the second frequency band is TDD (unpaired) or FDD (paired) or SDL or SUL. If the second frequency band is FDD, the second frequency band includes a second downlink frequency band and a second uplink frequency band, the second downlink frequency band includes a second downlink carrier, and the second uplink frequency band includes a second uplink carrier.
  • the second frequency band includes the second cell, which means that the carrier of the second cell (including the second downlink carrier and/or the second uplink carrier) is within the second frequency band.
  • the second downlink carrier and the second uplink carrier may be of the same frequency (that is, they are at the same position in the frequency domain), or they may be of different frequencies (that is, they do not overlap in the frequency domain).
  • having the same position in the frequency domain means that the center frequencies (frequency points) are the same (that is, the corresponding frequency bands are TDD).
  • the subcarrier spacing of the first downlink carrier and the second downlink carrier are different. Among them, different means not exactly the same or completely different (no intersection).
  • the SCS of the first downlink carrier is 15 kHz
  • the SCS of the second downlink carrier is 120 kHz.
  • the subcarrier spacing of the first uplink carrier and the second uplink carrier are different.
  • different means not exactly the same or completely different (no intersection).
  • the SCS of the first uplink carrier is 15kHz
  • the SCS of the second uplink carrier is 120kHz.
  • the first module may receive (including performing demodulation, and/or measurement, and/or decoding, and/or interpretation, etc.) and/or transmit (including performing physical resource mapping, etc.) in the second frequency band. )Signal.
  • the first module uses the third timing to receive the signal from the first network device in the second frequency band, and/or the first module uses the fourth timing to send the signal to the first network device in the second frequency band.
  • the first module may receive signals on one or more carriers of the first frequency band and/or the second frequency band, such as receiving SSB, CSI-RS, PDCCH, PDSCH, etc., and, the first module Signals may also be sent on one or more carriers in the first frequency band and/or the second frequency band, such as PRACH, SRS, PUCCH, PUSCH, etc.
  • the types of signals received by the first module in different frequency bands or different carriers are the same or different, that is, That is, the signals that need to be received in different frequency bands or carrier configurations are the same or different.
  • the signal types received by the first module in the two frequency bands or carriers are the same, including SSB, CSI-RS, PDCCH, PDSCH, etc.; for another example, the signal types received by the first module in the two frequency bands or carriers are different.
  • One downlink carrier receives SSB, CSI-RS, PDCCH, PDSCH, etc., and the other downlink carrier only receives SSB and CSI-RS.
  • the types of signals sent by the first module in different frequency bands or carriers are the same or different, that is to say , the signals that need to be sent in different frequency bands or carrier configurations are the same or different.
  • the signal types sent by the first module in the two frequency bands or carriers are the same, including PRACH, SRS, PUCCH, PUSCH, etc.; for another example, the signal types sent by the first module in the two frequency bands or carriers are different, and in one of the uplink
  • the carrier sends PRACH, SRS, PUCCH, PUSCH, etc., and only PRACH is sent on the other uplink carrier.
  • the first module may receive SSB on the aforementioned first downlink carrier and/or the second downlink carrier to obtain the aforementioned first timing and/or third timing.
  • the SSB may be received on the first downlink carrier to obtain the first timing
  • the SSB may be received on the second downlink carrier to obtain the third timing.
  • the SSB is received on the first downlink carrier to obtain the first timing
  • the third timing is determined based on the first timing.
  • the transponder NCR-MT
  • the SSB is received on the second downlink carrier to obtain the third timing, and then the first timing is determined based on the third timing.
  • the transponder NCR-MT
  • the first module may send a preamble sequence on the first uplink carrier and/or the second uplink carrier to obtain the second timing and/or the fourth timing.
  • a preamble sequence may be sent on the first uplink carrier to obtain the second timing
  • a preamble sequence may be sent on the second uplink carrier to obtain the fourth timing
  • the preamble sequence is sent on the first uplink carrier to obtain the second timing, and then the fourth timing is determined based on the second timing.
  • the transponder receives a signal indicating the second timing and the fourth timing. information about the offset between the first timing and the third timing, and then determines the fourth timing based on the second timing and the offset; for another example, the transponder (NCR-MT) determines the third timing based on the offset between the first timing and the third timing and the second timing.
  • the preamble sequence is sent on the second uplink carrier to obtain the fourth timing, and then the second timing is determined based on the fourth timing.
  • the transponder receives a signal indicating the second timing and the fourth timing. information about the offset between the first timing and the third timing, and then determines the second timing based on the fourth timing and the offset; for another example, the transponder (NCR-MT) determines the third timing based on the offset between the first timing and the third timing and the fourth timing. Two timing.
  • the first module may also receive information indicating the above-mentioned second timing and/or fourth timing, and determine or acquire the second timing and/or fourth timing based on the information or in combination with the information.
  • the first module in order to obtain the fourth timing, sends a preamble sequence in the second frequency band (second uplink carrier), in the first frequency band (first downlink carrier) or in the second frequency band (second downlink carrier) Information indicating the fourth timing is received.
  • the above information may be carried by dynamic signaling and/or semi-static signaling.
  • the dynamic signaling here includes but is not limited to downlink control information DCI, physical downlink control channel PDCCH, etc.
  • the semi-static signaling here includes but is not limited to MAC CE (Media Access Control Control Unit) signaling, RRC (Radio Resource Control) signaling, etc.
  • the above information may include one or more of RAR (random access response), TA command (timing advance command), TA offset (timing advance offset) (for example, n-TimingAdvanceOffset).
  • RAR and TA command are used to indicate the value of N TA
  • TA offset is used to indicate the value of N TA offset .
  • the corresponding uplink transmission timing can be determined according to the foregoing method.
  • the first frequency band and the second frequency band refer to the operating frequency band (operating band) or passband, but the present application is not limited thereto.
  • the carrier (downlink carrier) through which the MT of the transponder receives signals and/or the carrier (uplink carrier) through which the MT transmits signals is called the carrier of the MT of the transponder.
  • the carrier of the transponder's MT includes one or more carriers.
  • multiple refers to more than one, or two or more.
  • the carrier of the MT of the repeater is not within the frequency band (or passband or carrier) range of the forwarding module of the repeater. That is to say, the forwarding module of the repeater does not forward the signal (radio frequency signal) on the carrier of the MT of the repeater.
  • At least one carrier of the MT of the repeater is within the frequency band (or passband or carrier) of the forwarding module of the repeater. That is to say, the forwarding module of the repeater forwards the signal (radio frequency signal) on at least one carrier of the MT of the repeater.
  • At least one carrier of the MT of the repeater is within the frequency band (or passband or carrier) of the forwarding module of the repeater, and at least one carrier of the MT of the repeater is not within the range of the forwarding module of the repeater.
  • the forwarding module of the repeater forwards the signal (radio frequency signal) on at least one carrier of the MT of the repeater, and the forwarding module of the repeater does not forward the signal (radio frequency signal) on at least one carrier of the MT of the repeater.
  • the frequency band (or passband or carrier) of the forwarding module of the repeater refers to the frequency band (or passband or carrier) of the signal forwarded by the forwarding module of the repeater, or in other words, the frequency band (or passband or carrier) of the repeater.
  • the frequency band (or passband or carrier) of the forwarding module of the transponder includes one or more frequency bands (or passband or carrier).
  • the repeater does not receive a physical control channel (eg, PDCCH) and/or a physical data channel (eg, PDSCH) on the second downlink carrier.
  • a physical control channel eg, PDCCH
  • a physical data channel eg, PDSCH
  • the transponder only receives SSB and/or CSI-RS on the second downlink carrier.
  • the repeater does not send a physical control channel (eg, PUCCH) and/or a physical data channel (eg, PUSCH) on the second uplink carrier.
  • a physical control channel eg, PUCCH
  • a physical data channel eg, PUSCH
  • the transponder only receives PRACH and/or SRS on the second uplink carrier.
  • the repeater sends capability information to the network device.
  • the capability information is used to indicate the operating frequency band supported by the MT and/or the forwarding module of the repeater, and/or the TAG (timing) supported by the MT of the repeater.
  • Figure 11 is a schematic diagram of an example of a transponder receiving a signal according to the method of an embodiment of the present application.
  • the carrier of the MT of the repeater (first downlink carrier C1) is not within the frequency band (second frequency band B2) of the forwarding module of the repeater.
  • the first module (NCR-MT) of the transponder receives a signal on the first downlink carrier C1 of the first frequency band B1, for example, receives one or more of SSB, CSI-RS, PDCCH, PDSCH, etc.
  • the repeater's forwarding module (NCR-Fwd) forwards the signal in the second frequency band B2.
  • Figure 12 is a schematic diagram of another example of a transponder receiving a signal according to the method of an embodiment of the present application.
  • the transponder receives signals on 2 or more carriers in the first frequency band B1 and/or the second frequency band B2, and the 2 carriers are respectively called the first downlink carriers. C1 and the second downlink carrier C2.
  • the MT of the transponder receives a signal on the first downlink carrier C1, for example, one or more of SSB, CSI-RS, PDCCH, PDSCH, etc.
  • the MT of the transponder receives signals on the second downlink carrier C2, such as receiving SSB and/or CSI-RS, that is, the MT of the transponder At least one carrier of the MT (the first downlink carrier C1) is not in the frequency band (the second frequency band B2) of the transponder's forwarding module, and at least one carrier (the second downlink carrier C2) is in the frequency band (the second frequency band) of the transponder's forwarding module.
  • the transponder's forwarding module receives signals on the second downlink carrier C2, such as receiving SSB and/or CSI-RS, that is, the transponder's MT
  • the carrier (first downlink carrier C1) is not within the frequency band (second frequency band B2) of the repeater's forwarding module, and the repeater's forwarding module receives the carrier (second downlink carrier C2) within its frequency band (second frequency band B2) Signal.
  • the first downlink carrier C1 and/or the second downlink carrier C2 is subordinate to or not subordinate to the cell.
  • the first downlink carrier C1 is subordinate to the cell and the second downlink carrier C2 is not subordinate to the cell.
  • the first downlink carrier C1 and the second downlink carrier C2 belong to the same cell or different cells.
  • the first downlink carrier C1 and the second downlink carrier C2 belong to different cells.
  • the first downlink carrier C1 belongs to Pcell, for example (that is, the first downlink carrier C1 is the downlink carrier of Pcell), and the second downlink carrier C1 belongs to Pcell.
  • carrier C2 belongs to PScell or Scell (that is, the second downlink carrier C2 is the downlink carrier of PScell or Scell), but the present application is not limited thereto.
  • Figure 13 is a schematic diagram of an example of a repeater transmitting a signal according to the method of an embodiment of the present application.
  • the carrier of the MT of the repeater (first uplink carrier C3) is not within the frequency band (second frequency band B2) of the forwarding module of the repeater.
  • the first module (NCR-MT) of the transponder sends a signal on the first uplink carrier C3 of the first frequency band B1, for example, one or more of PRACH, SRS, PUCCH, PUSCH, etc.
  • the repeater's forwarding module (NCR-Fwd) forwards the signal in the second frequency band B2.
  • the first uplink carrier C3 is the same as or different from the above-mentioned first downlink carrier C1. That is to say, the first uplink carrier C3 and the above-mentioned first downlink carrier C1 may be the uplink carrier and the downlink carrier of the same cell (for example, Pcell) respectively. Both are TDD or FDD.
  • Figure 14 is a schematic diagram of another example of a repeater transmitting a signal according to the method of an embodiment of the present application.
  • the transponder sends signals on 2 or more carriers in the first frequency band B1 and/or the second frequency band B2.
  • the two carriers are respectively called the first uplink carrier C3 and the second uplink carrier.
  • C4 The MT of the transponder sends a signal on the first uplink carrier C3, for example, one or more of PRACH, SRS, PUCCH, PUSCH, etc.
  • the MT of the transponder sends signals on the second uplink carrier C4, such as sending PRACH and/or SRS, etc., that is to say, at least the MT of the transponder One carrier (first uplink carrier C3) is not within the frequency band (second frequency band B2) of the transponder's forwarding module, and at least one carrier (second uplink carrier C4) is within the frequency band (second frequency band B2) of the transponder's forwarding module.
  • the forwarding module (NCR-Fwd) of the repeater sends a signal on the second uplink carrier C4, such as sending PRACH and/or SRS, etc., that is, the carrier of the MT of the repeater (the first uplink carrier C3) is not within the frequency band (second frequency band B2) of the transponder's forwarding module, and the transponder's forwarding module sends signals on the carrier (second uplink carrier C4) within its frequency band (second frequency band B2).
  • the first uplink carrier C3 is the same as or different from the above-mentioned first downlink carrier C1
  • the second uplink carrier C4 is the same as or different from the above-mentioned second downlink carrier C2. That is to say, the first uplink carrier C3 and the above-mentioned first downlink carrier C1 may be the uplink carrier and the downlink carrier of the same cell (for example, Pcell) respectively. Both are TDD or FDD.
  • the second uplink carrier C4 and the above-mentioned second downlink carrier C2 may be the uplink carrier and the downlink carrier of the same cell (for example, PScell/Scell) respectively. Both are TDD or FDD.
  • the first downlink carrier C1 and/or the second downlink carrier C2 and/or the first uplink carrier C3 and/or the second uplink carrier C4 are subordinate to or not subordinate to the cell.
  • the first downlink carrier C1 and the second downlink carrier C2 belong to a cell
  • the first downlink carrier C1 and the second downlink carrier C2 belong to the same or different cells.
  • the first uplink carrier C3 and the second uplink carrier C4 belong to the same or different cells.
  • the first downlink carrier C1 and the second downlink carrier C2 belong to the same cell
  • the first downlink carrier C1 is the NDL carrier of the cell
  • the second downlink carrier C2 is the SDL carrier of the cell, or vice versa.
  • the first uplink carrier C3 and the second uplink carrier C4 belong to the same cell, for example, the first uplink carrier C3 is the NUL of the cell, and the second uplink carrier C4 is the SUL carrier of the cell, or vice versa.
  • the first downlink carrier C1/first uplink carrier C3 and the second downlink carrier C2/second uplink carrier C4 belong to different cells, and the above-mentioned first downlink carrier C1/first uplink carrier C3 belongs to Pcell, for example.
  • the above-mentioned second downlink carrier C2/second uplink carrier C4 belongs to PScell or Scell, for example, but the present application is not limited thereto.
  • the first module receives signals in the downlink BWP of the downlink carrier, and/or sends signals in the uplink BWP of the uplink carrier, but the application is not limited thereto.
  • Figure 15 is a schematic diagram of an example of a repeater forwarding a signal according to the method of an embodiment of the present application.
  • the transponder 151 receives the SSB on the second downlink carrier C2 and/or sends the PRACH on the second uplink carrier C4, and then determines the downlink reception timing (third timing) and/or the uplink transmission timing ( The fourth timing), according to the above-mentioned downlink reception timing and/or uplink transmission timing, or in combination with other information from the first gNB 152, determine the downlink transmission timing (fifth timing) and/or the uplink reception timing (sixth timing) of the second module. timing).
  • the transponder (second module) 151 can receive a signal from the second gNB 153, process (amplify) the received signal and then according to the above-mentioned downlink transmission timing (fifth timing), The processed signal is forwarded to UE 154; in addition, according to the above-mentioned uplink reception timing (sixth timing), the transponder (second module) 151 can receive the signal from UE 154, and process (amplify) the received signal. According to the above-mentioned uplink transmission timing (fourth timing), the processed signal is forwarded to the second gNB 153.
  • the repeater may be a repeater, a radio frequency repeater, a radio frequency repeater, a repeater node, a repeater node, a repeater node, an intelligent repeater, an intelligent repeater, or an intelligent relay.
  • repeater node, smart repeater node, smart repeater node, etc. but the application is not limited to this, and it can also be other devices.
  • the repeater by obtaining the first timing and/or the second timing, communication (information interaction) between the transponder and the base station (first network device) can be realized.
  • the repeater by obtaining the third timing and/or Or at the fourth timing, the repeater can be implemented to forward the signal between the base station (second network device) and the terminal device.
  • Embodiments of the present application provide a communication device.
  • the device may be, for example, a transponder, or may be one or some components or components configured in the transponder.
  • Figure 16 is a schematic diagram of a communication device according to an embodiment of the present application. Since the principle of solving problems of this device is the same as the method of the embodiment of the first aspect, its specific implementation can refer to the implementation of the method of the embodiment of the first aspect. The same content will not be repeated.
  • the communication device 1600 in the embodiment of the present application includes a first module 1601 and a second module 1602.
  • the first module 1601 acquires the first timing, which is at least used for the first module 1601 to receive the signal from the first network device in the first frequency band, and/or the first module 1601 acquires the first timing.
  • Second timing the second timing is at least used by the first module 1601 to send a signal to the first network device in the first frequency band.
  • the first module 1601 also obtains a third timing, which is at least used by the second module 1602 to receive a third signal from the second network device in the second frequency band, and the third signal is used to be forwarded, and/or , the first module 1601 also obtains a fourth timing, which is at least used by the second module 1602 to forward the processed fourth signal from the terminal device to the second network device in the second frequency band.
  • the first frequency band and the second frequency band do not overlap in the frequency domain.
  • the first frequency band and the second frequency band belong to different timing advance groups (TAG).
  • TAG timing advance groups
  • the first network device and the second network device are the same or different.
  • the first timing is also used for the second module 1602 to receive the first signal from the first network device in the first frequency band, the first signal is used to be forwarded, and/or the second timing is also used for the second module 1602 to receive the first signal from the first network device in the first frequency band.
  • the second module 1602 forwards the processed second signal from the terminal device to the first network device in the first frequency band.
  • the subcarrier spacing of the first frequency band and the second frequency band are different.
  • the first frequency band includes a first carrier
  • the first carrier includes a first downlink carrier and/or a first uplink carrier.
  • the first uplink carrier and the first downlink carrier are at the same location in the frequency domain or do not overlap in the frequency domain.
  • the second frequency band includes a second carrier
  • the second carrier includes a second downlink carrier and/or a second uplink carrier.
  • the second uplink carrier and the second downlink carrier are at the same position in the frequency domain or do not overlap in the frequency domain.
  • the subcarrier spacing of the first downlink carrier and the second downlink carrier are different.
  • the subcarrier spacing of the first uplink carrier and the second uplink carrier are different.
  • the first module 1601 also receives and/or transmits signals in the second frequency band.
  • the first module 1601 also receives SSB on the first downlink carrier and/or the second downlink carrier to obtain the aforementioned first timing and/or third timing.
  • the first module 1601 also sends a preamble sequence on the first uplink carrier and/or the second uplink carrier to obtain the aforementioned second timing and/or fourth timing.
  • the first module 1601 also receives information indicating the second timing and/or the fourth timing.
  • the above-mentioned information indicating the second timing and/or the fourth timing is carried by dynamic signaling and/or semi-static signaling.
  • dynamic signaling is, for example, downlink control information DCI or physical downlink control channel PDCCH
  • semi-static signaling is, for example, MAC CE signaling or RRC signaling.
  • the above-mentioned information indicating the second timing and/or the fourth timing includes RAR and/or TA command and/or TA offset.
  • the first frequency band is located in a first frequency range
  • the second frequency band is located in a second frequency range.
  • the repeater may be a repeater, a radio frequency repeater, a radio frequency repeater, a repeater node, a repeater node, a repeater node, an intelligent repeater, an intelligent repeater, or an intelligent relay.
  • repeater node, smart repeater node, smart repeater node, etc. but the application is not limited to this, and it can also be other devices.
  • the repeater by acquiring the first timing and/or the second timing, communication (information interaction) between the transponder and the base station (first network device) can be realized.
  • the repeater by acquiring the third timing and/or Or at the fourth timing, the repeater can be implemented to forward the signal between the base station (second network device) and the terminal device.
  • the embodiment of the present application provides a communication system, which includes a network device, a repeater, and a terminal device.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC highly reliable low-latency communications
  • V2X vehicle-to-everything
  • the network device is configured to send signals to the repeater (NCR-MT) and/or receive signals from the repeater (NCR-MT); and/or, the network device is configured to pass the repeater (NCR-MT) NCR-Fwd) transmits signals to the terminal device and/or receives signals from the terminal device through the repeater (NCR-Fwd); the repeater is configured to perform the method described in the embodiment of the first aspect, the content of which is incorporated herein , which will not be described again here.
  • Embodiments of the present application also provide a repeater, which may be, for example, a repeater, a radio frequency repeater, a radio frequency repeater, a repeater node, a repeater node, a repeater node, an intelligent repeater, or an intelligent repeater.
  • a repeater which may be, for example, a repeater, a radio frequency repeater, a radio frequency repeater, a repeater node, a repeater node, a repeater node, an intelligent repeater, or an intelligent repeater.
  • Repeaters, smart repeaters, smart repeater nodes, smart repeater nodes, smart repeater nodes, etc. but the application is not limited to these, and can also be other devices.
  • FIG 17 is a schematic diagram of a repeater according to an embodiment of the present application.
  • the transponder 1700 may include a processor 1710 and a memory 1720; the memory 1720 stores data and programs 1730 and is coupled to the processor 1710. It is worth noting that this figure is exemplary; other types of structures may also be used to supplement or replace this structure to implement telecommunications functions or other functions.
  • the processor 1710 may be configured to execute a program to implement the method as described in the embodiment of the first aspect.
  • the repeater 1700 may also include: a network side transceiver 1740-1 and a network side antenna 1750-1, a terminal side transceiver 1740-2, a terminal side antenna 1750-2, a signal amplification circuit 1760, etc.;
  • the functions of the above components are similar to those in the prior art and will not be described again here.
  • the transponder 1700 does not necessarily include all components shown in Figure 17; in addition, the transponder 1700 may also include components not shown in Figure 17, and reference can be made to the existing technology.
  • An embodiment of the present application also provides a network device.
  • FIG. 18 is a schematic diagram of a network device according to an embodiment of the present application.
  • network device 1800 may include a central processing unit (CPU) 1801 and a memory 1802; memory 1802 is coupled to CPU 1801.
  • the memory 1802 can store various data; in addition, it also stores information processing programs, and executes the program under the control of the central processor 1801 to receive various information sent by the terminal device and send various information to the terminal device.
  • the processor 1801 may be configured to execute a program to send signals to and/or receive signals from a transponder's MT.
  • a program to send signals to and/or receive signals from a transponder's MT.
  • the network device 1800 may also include: a transceiver 1803, an antenna 1804, etc.; the functions of the above components are similar to those of the existing technology and will not be described again here. It is worth noting that the network device 1800 does not necessarily include all components shown in Figure 18; in addition, the network device 1800 may also include components not shown in Figure 18, and reference can be made to the existing technology.
  • An embodiment of the present application also provides a network device.
  • the network device includes a sending unit for sending signals to the mobile terminal of the repeater, and/or a receiving unit for receiving signals from the mobile terminal of the repeater. Relevant contents of network equipment have been described in the foregoing embodiments, and their contents are incorporated here and will not be described again here.
  • An embodiment of the present application also provides a computer-readable program, wherein when the program is executed in a transponder, the program causes the computer to execute the method described in the embodiment of the first aspect in the transponder.
  • An embodiment of the present application also provides a storage medium storing a computer-readable program, wherein the computer-readable program causes a computer to execute the method described in the embodiment of the first aspect in the transponder.
  • the above devices and methods of this application can be implemented by hardware, or can be implemented by hardware combined with software.
  • the present application relates to a computer-readable program that, when executed by a logic component, enables the logic component to implement the apparatus or component described above, or enables the logic component to implement the various methods described above or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, etc.
  • This application also involves storage media used to store the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, etc.
  • the methods/devices described in connection with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in the figure may correspond to each software module of the computer program flow, or may correspond to each hardware module.
  • These software modules can respectively correspond to the various steps shown in the figure.
  • These hardware modules can be implemented by solidifying these software modules using a field programmable gate array (FPGA), for example.
  • FPGA field programmable gate array
  • the software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor such 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 storage media may be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or the large-capacity flash memory device.
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described in the accompanying drawings may be implemented as a general-purpose processor or a digital signal processor (DSP) for performing the functions described in this application. ), 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.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described in the accompanying drawings can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, or multiple microprocessors. processor, one or more microprocessors combined with DSP communications, or any other such configuration.
  • a communication method wherein the method includes:
  • the first module of the transponder acquires a first timing, which is at least used for the first module to receive a signal from a first network device in a first frequency band, and/or the first module of the transponder acquires second timing, the second timing is used at least for the first module to send a signal to the first network device in the first frequency band;
  • the first module obtains a third timing, the third timing is used at least for the second module of the repeater to receive a third signal from the second network device in the second frequency band, the third signal is used to be forwarded , and/or, the first module acquires a fourth timing, which is at least used by the second module to forward the processed fourth signal from the terminal device to the second network in the second frequency band. equipment;
  • the first frequency band and the second frequency band do not overlap in the frequency domain.
  • the first frequency band includes a first carrier
  • the first carrier includes a first downlink carrier and/or a first uplink carrier.
  • the second frequency band includes a second carrier
  • the second carrier includes a second downlink carrier and/or a second uplink carrier.
  • the first module receives and/or transmits signals in the second frequency band.
  • the first module receives SSB on the first downlink carrier and/or the second downlink carrier to obtain the first timing and/or the third timing.
  • the first module sends a preamble sequence on the first uplink carrier and/or the second uplink carrier to obtain the second timing and/or the fourth timing.
  • the first module receives information indicating the second timing and/or the fourth timing.
  • a transponder comprising a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of appendices 1 to 20.
  • a network device comprising a memory and a processor
  • the memory stores a computer program
  • the processor is configured to execute the computer program to send signals to MTs of a repeater and/or receive signals from the repeater MT signal.
  • a communication system including network equipment, terminal equipment and repeaters, wherein,
  • the network device is configured to send signals to and/or receive signals from the repeater (NCR-MT); and/or, the network device is configured to pass the A repeater (NCR-Fwd) sends a signal to the terminal device and/or receives a signal from the terminal device through the repeater (NCR-Fwd);
  • the transponder is configured to perform the method described in any one of appendices 1 to 20.

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Abstract

本申请实施例提供了一种通信方法、装置和系统，所述方法包括：转发器的第一模块获取第一定时，所述第一定时至少用于所述第一模块在第一频带接收来自第一网络设备的信号，和/或，所述转发器的第一模块获取第二定时，所述第二定时至少用于所述第一模块在第一频带向所述第一网络设备发送信号；所述第一模块获取第三定时，所述第三定时至少用于所述转发器的第二模块在第二频带接收来自第二网络设备的第三信号，所述第三信号用于被转发，和/或，所述第一模块获取第四定时，所述第四定时至少用于所述第二模块在第二频带将来自终端设备的经过处理的第四信号转发给所述第二网络设备；所述第一频带和所述第二频带在频域不重叠。

Description

一种通信方法、装置和系统 技术领域
本申请涉及通信领域。
背景技术
与传统的2G(第二代移动通信技术)、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，5G系统支持的频带范围/工作带宽明显大于2G，3G和4G系统，并且，5G系统支持更高的载波频率。例如，5G系统可以部署在毫米波波段。
然而，载波频率越高，信号在传输过程中遇到的衰落越严重。因此，在5G系统的实际部署中，特别是在毫米波段，如何更好的增强小区覆盖，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)放大和转发设备之间的信号，是比较常用的部署手段。射频转发器在2G系统，3G系统和4G系统的实际部署中具有较为广泛的应用，其优点在于低成本，易部署，且不会增加过多时延。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。
另外，传统射频转发器不具备通信功能。也就是说，传统射频转发器不能够和其他设备(例如基站/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接收到的信号进行测量/解调/解码等。在发送方面，传统射频转发器仅放大并转发接收到的射频信号，不支持生成信号和发送自身生成的信号。
因此，传统射频转发器的工作相关配置(例如，天线方向(波束方向和/或宽度(或者说大小))、转发方向、开关状态、放大增益等)不受控于网络，通常是人工设置或调整的。例如，天线方向通常在初始安装的时候人工进行设置和调整，以使得基站侧的天线指向基站来波方向，终端侧的天线指向需要增强部署的地方。
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
发明人发现，针对5G系统在部署中遇到的覆盖问题，采用传统射频转发器进行覆盖增强是可行的解决方案之一。但是，由于传统射频转发器的工作相关配置(例如，天线方向(波束方向和/或宽度(或者说大小))、转发方向、开关状态、放大增益等)不受控于网络，一方面，其放大转发目标信号的效果可能不理想，另一方面，其可能对网络中其他设备造成明显干扰，提升系统的噪声和干扰水平，进而降低网络吞吐量。
以天线方向为例，相比于2G、3G和4G系统，5G系统采用了更为高级和复杂的MIMO(多进多出)技术。在5G系统中，尤其针对较高的载波频率，有向天线成为基站与终端设备的基本部件，基于波束赋形(Beam forming)技术发送和接收信号是5G系统中基本的信号传输方式。基站和终端设备的(模拟)波束方向、宽度(大小)等可能由于位置变化等因素动态变化(也就是波束切换)。然而，传统射频转发器的天线不可动态地调整方向、波束较宽，其收发天线的波束方向、波束宽度不能灵活匹配基站和终端设备的位置以及收发天线的波束方向、宽度的动态变化。
图1是部署于5G系统中的射频转发器的收发天线的一个示例，如图1所示，这样的射频转发器配置在5G系统中，一方面，其可能由于其收发天线的波束方向、波束宽度和基站和终端设备的收发天线的波束方向、宽度的动态变化不匹配，放大/增强目标信号的性能/效果不显著，另一方面，其可能由于采用较宽的发送波束也对较大范围内的其它设备(例如基站或者终端设备)造成明显干扰，提升整个系统的噪声和干扰水平，进而降低网络吞吐量。
为了解决上述问题至少之一，网络(基站)可以对射频转发器的工作相关配置进行一些控制。而为了实现网络对射频转发器的工作相关配置的控制，需要支持网络(基站)和射频转发器之间的信息交互，使得射频转发器可以根据网络(基站)的指示设置和/或调整工作相关配置，例如天线方向(波束方向和/或宽度(或者说大小))、转发方向、开关状态、放大增益等。也就是说，射频转发器具有通信功能，以接收(解调/测量/解码/解读等)网络(基站)的发送的信息，和/或，向网络(基站)发送信息。
然而，关于如何支持上述信息交互以及射频转发器如何在支持上述信息交互的情况下工作，目前还没有具体的方法。
针对上述问题，本申请实施例提供了一种通信方法、装置和系统，以支持网络设备(基站)和射频转发器之间的信息交互，以使得射频转发器在支持上述信息交互的情况下工作。
在本申请实施例中，涉及射频转发器在支持和网络之间的信息交互的情况下的用于收发信号的定时。
根据本申请实施例的一方面，提供一种通信装置，配置于转发器，所述装置包括第一模块和第一模块，其中，
所述第一模块获取第一定时，所述第一定时至少用于所述第一模块在第一频带接收来自第一网络设备的信号，和/或，所述第一模块获取第二定时，所述第二定时至少用于所述第一模块在第一频带向所述第一网络设备发送信号；
所述第一模块获取第三定时，所述第三定时至少用于所述第二模块在第二频带接收来自第二网络设备的第三信号，所述第三信号用于被转发，和/或，所述第一模块获取第四定时，所述第四定时至少用于所述第二模块在第二频带将来自终端设备的经过处理的第四信号转发给所述第二网络设备；
所述第一频带和所述第二频带在频域不重叠。
本申请实施例的有益效果之一在于：根据本申请实施例，通过获取第一定时和/或第二定时，能够实现转发器与基站(第一网络设备)之间的通信(信息交互)，此外，通过获取第三定时和/或第四定时，能够实现转发器对基站(第二网络设备)和终端设备之间的信号的转发。
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。
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是部署于5G系统中的射频转发器的收发天线的一个示例的示意图；
图2是NCR的一个示例的示意图；
图3是本申请实施例的实施场景的一个示例的示意图；
图4是NCR的链路和频率范围的关系的示意图；
图5是本申请实施例的通信方法的一示意图；
图6是图5的方法对应的网络架构的一示意图；
图7是图5的方法对应的网络架构的另一示意图；
图8是定时提前量的一个示意图；
图9是频率范围(FR)和频率范围内的频带(band)在频率上的关系的一个实例的示意图；
图10是频带(band)和频带中的载波(carirer)在频率上的关系的一个实例的示意图；
图11是转发器根据本申请实施例的方法接收信号的一个示例的示意图；
图12是转发器根据本申请实施例的方法接收信号的另一个示例的示意图；
图13是转发器根据本申请实施例的方法发送信号的一个示例的示意图；
图14是转发器根据本申请实施例的方法接收信号的另一个示例的示意图；
图15是转发器根据本申请实施例的方法转发信号的一个示例的示意图；
图16是本申请实施例的通信装置的一示意图；
图17是本申请实施例的转发器的一示意图；
图18是本申请实施例的网络设备的一示意图。
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)，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。
为了使本申请实施例易于理解，下面对本申请实施例涉及的术语和场景进行举例说明。
在本申请实施例中，具有前述通信功能的射频转发器可以称为NCR(network-controlled repeater)或SR(smart repeater)等，不限于此。
图2是该NCR的一个示例的示意图，如图2所示，该NCR 21在功能上分为NCR-MT(Mobile Termination)211和NCR-Fwd(Forwarding)212两部分。该NCR-MT211用于通过控制链路(C-link，Control link)与gNB 22进行通信，以进行信息交互，交互的信息例如包括侧控制信息(side control information)，该控制链路基于NR的Uu接口，并且，该侧控制信息至少用于对NCR-Fwd 212的控制。此外，该NCR-Fwd212用于通过回程链路(B-link，Backhaul link)和接入链路(A-link，Access link)在gNB 22和UE 23之间执行UL(上行)和/或DL(下行)射频信号(RF signal)的放大和转发(amplify-and-forwarding)，该NCR-Fwd 212的行为根据从gNB 22接收到的侧控制信息和/或其他信息进行控制。
在上述示例中，gNB 22和UE 23的数量可以分别是一个或多个。其中，与NCR-MT 进行通信的gNB和被NCR-Fwd放大转发相应射频信号的gNB可以有交集，也可以没有交集。
当前，NR支持较大的频率范围。至NR Rel-17，定义了多个频率范围，例如，FR1和FR2。其中，FR2还可以进一步分为FR2-1和FR2-2。
由于高频(例如FR2)的覆盖范围较小，如果采用高频(例如FR2)保证基础覆盖(例如，支持UE的初始接入，建立/重建RRC连接等)，意味着需要较高密度部署大量站点，成本较高。因而，在目前的实际部署中，部分运营商采用低频(例如FR1)保证基础覆盖；而高频(例如FR2)则作为热点覆盖，用于流量卸载(traffic off-load)或者说容量增强，不用于保证基础覆盖(例如，不支持UE的初始接入，建立/重建RRC连接等)。
同时，由于高频的覆盖范围小且信号容易被阻挡，NCR可能仅用于放大并转发高频的信号，而不放大转发低频的信号。
图3是本申请实施例的实施场景的一个示例的示意图，如图3所示，NCR 31通过控制链路(C-link)与第一gNB 32进行通信，以实现信息交互，其中，控制链路基于NR的Uu接口。另外，NCR 31还可以通过回程链路(Backhaul link)和接入链路(Access link)在第二gNB 34和UE 33之间执行UL(上行)/DL(下行)射频信号放大和转发，例如可以根据从第一gNB 32收到的信息进行放大和转发等操作。
此外，在图3的场景中，NCR 31在高频(例如FR2)进行第二gNB 34和UE 33之间的信号的放大和转发操作，而在低频(例如FR1)进行与第一gNB 32的通信操作，但本申请不限于此，图3的场景只是举例说明，例如，NCR 31还可以在低频(例如FR1)进行第一gNB 32和UE 33之间的信号的放大和转发操作，和/或在在高频(例如FR2)进行与第一gNB 32的通信操作；再例如，第二gNB 34和第一gNB 32也可以相同，等。
在图3的示例中，第一gNB 32和第二gNB 34可以是相同的网络设备，也可以是不同的网络设备，关于网络设备的含义已经在前面做了说明，此处不再赘述。
图4是NCR的链路和频率范围的关系的示意图，如图4所示，控制链路涉及的频率范围为FR1或者FR1和FR2，也就是说，NCR-MT可以在FR1或者FR1和FR2接收和/或发送物理信号；回程链路和接入链路涉及的频率范围为FR2，也就是说，NCR-Fwd在FR2放大转发射频信号。
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。
第一方面的实施例
本申请实施例提供一种通信方法。
图5是本申请实施例的通信方法的一示意图，如图5所示，该方法包括：
501：转发器的第一模块获取第一定时，所述第一定时至少用于所述第一模块在第一频带接收来自第一网络设备的信号，和/或，所述转发器的第一模块获取第二定时，所述第二定时至少用于所述第一模块在第一频带向所述第一网络设备发送信号；
502：所述第一模块获取第三定时，所述第三定时至少用于所述转发器的第二模块在第二频带接收来自第二网络设备的第三信号，所述第三信号用于被转发，和/或，所述第一模块获取第四定时，所述第四定时至少用于所述第二模块在第二频带将来自终端设备的经过处理的第四信号转发给所述第二网络设备；所述第一频带和所述第二频带在频域不重叠。
在本申请实施例中，第一定时和/或第二定时用于转发器的第一模块在第一频带与网络设备(第一网络设备)进行通信；第三定时和/或第四定时用于转发器的第二模块在第二频带对网络设备(第二网络设备)和终端设备之间的信号(射频信号)进行转发。由此，能够实现转发器在第一频带与基站(第一网络设备)之间的通信(信息交互)，并且转发器在第二频带对基站(第二网络设备)和终端设备之间的信号的转发。此外，第一频带和第二频带在频域上不重叠，转发器可以在不同频带分别用于基础覆盖和热点覆盖的网络部署场景中工作。例如，第一频带在低频，用于基础覆盖，第二频带在高频，用于热点覆盖，转发器的第一模块在第一频带与网络通信，网络通过侧控制信息(side control information)和/或其他信息控制转发器的第二模块在第二频带如何/是否放大转发射频信号，以扩大热点覆盖范围。
在本申请实施例中，第一模块至少用于接收和/或发送物理信号，例如同步信号(例如PSS，SSS)，物理层广播信道(例如PBCH)，参考信号(例如CSI-RS，TRS，SRS，PRS，DMRS，PT-RS)，物理层控制信道(例如PDCCH，PUCCH)，物理层数据信道(例如PDSCH，PUSCH)等。该第一模块例如为转发器的移动终端(MT，mobile termination)，例如前述NCR-MT，此外，该第一模块也可以有其他叫法。
在本申请实施例中，第二模块至少用于放大和转发射频信号。该第二模块例如为转发器的转发模块/单元，例如前述NCR-Fwd，此外，该第二模块也可以有其他叫法。
在一些实施例中，第二模块仅用于放大和转发射频信号。
在一些实施例中，第二模块除用于放大和转发射频信外还用于接收和/或发送物理信号，例如同步信号(例如PSS，SSS)，物理层广播信道(例如PBCH)，参考信号(例如CSI-RS，TRS，SRS，PRS，DMRS，PT-RS)，物理层控制信道(例如PDCCH，PUCCH)，物理层数据信道(例如PDSCH,PUSCH)等。
在上述实施例中，第三信号用于被转发是指，第三信号被转发器进行处理后转发，这里的处理包括放大，例如转发器在射频域接收该第三信号(也即，该第三信号是射频信号)，对该第三信号进行放大后再转发。
在上述实施例中，第四信号来自于终端设备，且是被该转发器处理后的信号，这里的处理也包括放大。例如，转发器接收来自终端设备的信号，对该信号进行放大后，得到第四信号，将该第四信号转发给第二网络设备。
图6是图5的方法对应的网络架构的一示意图，在图6中，以第一模块为NCR-MT并且第二模块为NCR-Fwd为例。如图6所示，NCR-MT获取第一定时/第二定时/第三定时/第四定时，NCR-MT使用第一定时在第一频带从第一网络设备接收信号，并使用第二定时在第一频带向第一网络设备发送信号，此外，NCR-Fwd使用第三定时在第二频带从第二网络设备接收第三信号，对该第三信号进行处理后，在第二频带将处理后的第三信号转发给UE，此外，NCR-Fwd还在第二频带从UE接收第四信号，对该第四信号进行处理后，使用第四定时在第二频带将处理后的第四信号转发给第二网络设备。
在上述实施例中，以转发器在第二频带进行信号转发为例进行说明，但本申请不限于此，转发器还可以在第一频带进行信号转发，其中，在第一频带进行信号转发的操作可以合并到第二模块中，也可以通过独立于第二模块的其他模块(第三模块)实现。例如，转发器包括两个转发模块(NCR-Fwd)，第一转发模块用于在第一频带进行信号转发，第二转发模块用于在第二频带进行信号转发，来自网络设备的侧控制信息和/或其他信息用于控制转发器的第一转发模块和/或第二转发模块。也就是说，第二模块包括第一转发模块和第二转发模块；或者，第二模块包括第二转发模块，而独立于第二模块的其他模块(第三模块)包括第一转发模块。
在一些实施例中，第三模块仅用于放大和转发射频信号。
在一些实施例中，第三模块除用于放大和转发射频信外还用于接收和/或发送物理信号，例如同步信号(例如PSS，SSS)，物理层广播信道(例如PBCH)，参考信号(例如CSI-RS，TRS，SRS，PRS，DMRS，PT-RS)，物理层控制信道(例如PDCCH，PUCCH)，物理层数据信道(例如PDSCH，PUSCH)等。
例如，在一些实施例中，第一定时和/或第二定时还用于转发器的第二模块或第三模块在第一频带对网络设备(第一网络设备)和终端设备之间的信号(射频信号)进行转发。例如，第一定时还用于转发器的第二模块或第三模块在第一频带接收来自第一网络设备的第一信号，该第一信号用于被转发，和/或，第二定时还用于第二模块或第三模块在第一频带将来自终端设备的经过处理的第二信号转发给第一网络设备。
在上述实施例中，第一信号用于被转发是指，第一信号被转发器进行处理后转发，这里的处理包括放大，例如转发器在射频域接收该第一信号(也即，该第一信号是射频信号)，对该第一信号进行放大后再转发。
在上述实施例中，第二信号来自于终端设备，且是被该转发器处理后的信号，这里的处理也包括放大。例如，转发器接收来自终端设备的信号，对该信号进行放大后，得到第二信号，将该第二信号转发给第一网络设备。
图7是图5的方法对应的网络架构的另一示意图，在图7中，以第一模块为NCR-MT并且第二模块为NCR-Fwd为例。如图7所示，NCR-MT获取第一定时/第二定时/第三定时/第四定时，NCR-MT使用第一定时在第一频带从第一网络设备接收信号，并使用第二定时在第一频带向第一网络设备发送信号，此外，NCR-Fwd使用第三定时在第二频带从第二网络设备接收第三信号，对该第三信号进行处理后，在第二频带将处理后的第三信号转发给UE，此外，NCR-Fwd还在第二频带从UE接收第四信号，对该第四信号进行处理后，使用第四定时在第二频带将处理后的第四信号转发给第二网络设备。此外，NCR-Fwd使用第一定时在第一频带从第一网络设备接收第一信号，对该第一信号进行处理后，在第一频带将处理后的第一信号转发给UE，此外，NCR-Fwd还在第一频带从UE接收第二信号，对该第二信号进行处理后，使用第二定时在第一频带将处理后的第二信号转发给第一网络设备。
在上述实施例中，以转发器在第一频带与网络设备(第一网络设备)进行通信为 例进行说明，但本申请不限于此，转发器还可以在第二频带与网络设备(第二网络设备)进行通信，其中，在第二频带进行通信的操作可以合并到第一模块中，也可以通过独立于第一模块的其他模块(第四模块)实现。例如，转发器包括两个移动终端(NCR-MT)，第一移动终端用于在第一频带与网络设备进行通信，第二移动终端用于在第二频带与网络设备进行通信。也就是说，第一模块包括第一移动终端和第二移动终端；或者，第一模块包括第一移动终端，而独立于第二模块的其他模块(第四模块)包括第二移动终端。
例如，在一些实施例中，第三定时和/或第四定时还用于转发器的第一模块或第四模块在第二频带与网络设备(第二网络设备)进行通信。例如，第三定时还用于转发器的第一模块或第四模块在第二频带接收来自第二网络设备的信号，和/或，第四定时还用于第一模块或第四模块在第二频带向网络设备(第二网络设备)发送信号。
在本申请实施例中，第一网络设备和第二网络设备可以相同，也可以不同。以图3的场景为例，第一网络设备可以是第一gNB 32，第二网络设备可以是第二gNB 34，但本申请不限于此，如图2所示，第一网络设备和第二网络设备可以都是第一gNB 32或者都是第二gNB 34。
在一些实施例中，第一定时是第二定时的参考定时。也就是说，转发器(例如NCR-MT)根据第一定时确定第二定时。例如，第一定时是下行帧定时(downlink frame timing)或者说下行接收定时；第二定时是上行帧定时(uplink frame timing)或者说上行发送定时，相对第一定时的定时提前(例如Timing Advance TA)，转发器可根据第一定时及该定时提前量确定第二定时。
图8是定时提前量的一个示意图，在图8的示例中，定时提前量为(N TA+N TA offset)×T c，但本申请不限于此。
在一些实施例中，第三定时是第二定时的参考定时，含义与前述“第一定时是第二定时的参考定时”类似，此处不再赘述。
在一些实施例中，第一定时是第四定时的参考定时。含义与前述“第一定时是第二定时的参考定时”类似，此处不再赘述。
在一些实施例中，第三定时是第四定时的参考定时。含义与前述“第一定时是第二定时的参考定时”类似，此处不再赘述。
在一些实施例中，第一定时是第三定时的参考定时。就是说，转发器(例如 NCR-MT)根据第一定时确定第三定时。例如，第一定时是第一下行帧定时(downlink frame timing)或者说第一下行接收定时；第三定时是第二下行帧定时(downlink frame timing)或者说第二下行接收定时，相对第一定时的定时偏移，转发器可根据第一定时及该偏移确定第三定时。
在一些实施例中，第二定时是第四定时的参考定时。就是说，转发器(例如NCR-MT)根据第二定时确定第四定时。例如，第二定时是第一上行帧定时(uplink frame timing)或者说第一上行发送定时，第四定时是第二上行帧定时(uplink frame timing)或者说第二上行发送定时，相对第二定时的定时偏移，转发器可根据第二定时及该偏移确定第三定时。
在一些实施例中，转发器的MT接收用于指示第二定时和/或第三定时和/或第四定时的信息。其中，用于指示第二定时和/或第三定时和第四定时的信息，是指，用于转发器确定第二定时和/或第三定时和/或第四定时的信息，也就是说，转发器需根据该信息确定第二定时和/或第三定时和/或第四定时。例如，用于指示第二定时的信息包括用于转发器确定第二定时相对于第一定时的定时提前量的信息，进而转发器可以根据第一定时和该定时提前量确定第二定时。再例如，用于指示第四定时的信息包括用于转发器确定第四定时相对于第三定时的定时提前量的信息，进而转发器可以根据第三定时和该定时提前量确定第四定时。再例如，用于指示第四定时的信息包括用于转发器确定第四定时相对于第二定时的偏移的信息，进而转发器可以根据第二定时和该偏移确定第四定时。
在一些实施例中，第一定时与第三定时相同或不同。
在一些实施例中，第二定时和第四定时相同或不同。
在一些实施例中，不同频带(或小区或载波)的定时参考小区(timing reference cell)和/或应用的上行定时提前(timing advance)相同或不同。其中，定时参考小区用于确定下行定时和/或跟踪帧定时的变化。
在一些实施例中，转发器根据第一定时参考小区的帧定时确定第一定时和/或第二定时。例如，第一定时等于第一定时参考小区的下行帧定时(转发器接收)，进而，第二定时根据第一定时和相应定时提前量确定。
在一些实施例中，转发器根据第二定时参考小区的帧定时确定第三定时和/或第四定时。例如，第三定时等于第二定时参考小区的下行帧定时，进而，第四定时根据第 三定时和相应定时提前量确定。
在一些实施例中，转发器(例如NCR-MT)需要跟踪(follow)定时参考小区的帧定时，进而相应调整第一定时和/或第二定时和/或第三定时和/或第四定时。
在一些实施例中，第一定时参考小区和第二定时参考小区相同或不同。
在一些实施例中，第一频带(或小区或载波)的定时参考小区是第一小区。
在一些实施例中，第二频带(或小区或载波)的定时参考小区是第二小区或第一小区。
在本申请实施例中，第一频带和第二频带可以属于不同的定时提前组(TAG，Timing Advance Group或Timing Alignment Group)。例如，第一频带和第二频带可以属于MT的不同的定时提前组(TAG)。在本申请实施例中，频带的概念替换为小区或载波同样适用。例如，针对第一频带和第二频带可以属于第一模块的不同的定时提前组(TAG)，当频带的概念替换为小区时，第一小区和第二小区可以属于不同的TAG；同理，当频带的概念替换为载波时，第一载波和第二载波可以属于不同的TAG。
在一些实施例中，不同TAG中的频带(或小区或载波)的定时参考小区(timing reference cell)和应用的上行定时提前(timing advance)不同。
在本申请实施例中，第一频带和第二频带可以位于不同的频率范围内，例如，第一频带位于第一频率范围内，第二频带位于第二频率范围内。
在本申请实施例中，第一频率范围和第二频率范围在频率没有交叠，分别包括一个或多个工作频带(operating bands)。例如，第一频率范围是FR1，第二频率范围是FR2。再例如，第一频率范围是FR1，第二频率范围是FR2-1。再例如，第一频率范围是FR2-1，第二频率单位是FR2-2。
在一些实施例中，第一频率范围和第二频率范围的子载波间隔(SCS，subcarrier spacing)不同。其中，不同是指不完全相同或完全不同(没有交集)。例如，第一频率范围的子载波间隔可以是15kHz和/或30kHz，第二频率范围的子载波间隔可以是60kHz和/或120kHz。再例如，第一频率范围的子载波间隔可以是15kHz和/或30kHz和/或60kHz，第二频率范围的子载波间隔可以是60kHz和/或120kHz。
在一些实施例中，一个频率范围的子载波间隔，是指，针对该频率范围定义的子载波间隔。针对该第一频率范围内的频带定义的子载波间隔是针对该频率范围定义的子载波间隔的子集。
在一些实施例中，第一频带和第二频带的子载波间隔(SCS，subcarrier spacing)不同。其中，不同是指不完全相同或完全不同(没有交集)。例如，第一频带的子载波间隔可以是15kHz和/或30kHz，第二频带的子载波间隔可以是60kHz和/或120kHz。再例如，第一频带的子载波间隔可以是15kHz和/或30kHz和/或60kHz，第二频带的子载波间隔可以是60kHz和/或120kHz。
在一些实施例中，一个频带的子载波间隔，是指，针对该频带定义的子载波间隔。例如下表所示，band n1/n2的子载波间隔为15,30,60kHz。配置在该频带内的载波可以使用针对该频带定义的子载波间隔中的一个或多个子载波间隔(载波中不同BWP可以使用相同或不同的子载波间隔。)
Figure PCTCN2022097238-appb-000001
在一些实施例中，第一频带包括第一载波(或第一小区)，第一载波(或第一小区)包括第一下行载波和/或第一上行载波。其中，第一频带包括第一载波是指，在频率上，第一载波在第一频带内。也就是说，第一载波的带宽在第一频带的带宽内。第一频带是TDD(时分双工)(unpaired)或FDD(频分双工)(paired)或SDL或SUL的。若第一频带是FDD的，则第一频带包括第一下行频带和第一上行频带，第一下行频带包括第一下行载波，第一上行频带包括第一上行载波。第一频带包括第一小区，是指，第一小区的载波(包括第一下行载波和/或第一上行载波)在第一频带内。
图9是频率范围(FR)和频率范围内的频带(band)在频率上的关系的一个实例的示意图。图10是频带(band)和频带中的载波(carirer)在频率上的关系的一个实例的示意图。
在上述实施例中，第一下行载波和第一上行载波可以是同频的(也即在频域上所处的位置相同)，也可以是异频的(也即在频域上不重叠)。
在一些实施例中，第二频带包括第二载波(或第二小区)，第二载波(或第二小区)包括第二下行载波和/或第二上行载波。其中，第二频带包括第二载波是指，在 频率上，第二载波在第二频带内。也就是说，第二载波的带宽在第二频带的带宽内。第二频带是TDD(unpaired)或FDD(paired)或SDL或SUL的。若第二频带是FDD的，则第二频带包括第二下行频带和第二上行频带，第二下行频带包括第二下行载波，第二上行频带包括第二上行载波。第二频带包括第二小区，是指，第二小区的载波(包括第二下行载波和/或第二上行载波)在第二频带内。
在上述实施例中，第二下行载波和第二上行载波可以是同频的(也即在频域上所处的位置相同)，也可以是异频的(也即在频域上不重叠)。
在前述各实施例中，在频域上所处的位置相同，是指，中心频率(频点)相同(也即，相应频带是TDD的)。此外，在前述各实施例中，在频域上不重叠，包括，中心频率(频点)不同(也即，相应频带是FDD的)。
在一些实施例中，第一下行载波和第二下行载波的子载波间隔不同。其中，不同是指不完全相同或完全不同(没有交集)。例如，第一下行载波的SCS为15kHz，第二下行载波的SCS为120kHz。
在一些实施例中，第一上行载波和第二上行载波的子载波间隔不同。其中，不同是指不完全相同或完全不同(没有交集)。例如，第一上行载波的SCS为15kHz,第二上行载波的SCS为120kHz。
在一些实施例中，第一模块可以在第二频带接收(包括进行解调、和/或测量、和/或解码、和/或解读等处理)和/或发送(包括进行物理资源映射等处理)信号。
例如，第一模块使用第三定时在第二频带接收来自第一网络设备的信号，和/或，第一模块使用第四定时在第二频带向第一网络设备发送信号。
在前述各实施例中，第一模块可以在第一频带和/或第二频带的一个或多个载波上接收信号，例如接收SSB、CSI-RS、PDCCH、PDSCH等，并且，该第一模块也可以在第一频带和/或第二频带的一个或多个载波上发送信号，例如发送PRACH、SRS、PUCCH、PUSCH等。
在上述实施例中，在第一模块在第一频带和/或第二频带的多个载波上接收信号的情况下，第一模块在不同频带或不同载波接收的信号类型相同或不同，也就是说，不同频带或载波配置的需要接收的信号相同或不同。例如，第一模块在两个频带或载波接收的信号类型相同，都包括SSB、CSI-RS、PDCCH、PDSCH等；再例如，第一模块在两个频带或载波接收的信号类型不同，在其中一个下行载波接收SSB、CSI-RS、 PDCCH、PDSCH等，在另一个下行载波仅接收SSB和CSI-RS。以上只是举例说明，本申请不限于此。
在上述实施例中，在第一模块在第一频带和/或第二频带的多个载波上发送信号的情况下，第一模块在不同频带或载波发送的信号类型相同或不同，也就是说，不同频带或载波配置的需要发送的信号相同或不同。例如，第一模块在两个频带或载波发送的信号类型相同，都包括PRACH、SRS、PUCCH、PUSCH等；再例如，第一模块在两个频带或载波发送的信号类型不同，在其中一个上行载波发送PRACH、SRS、PUCCH、PUSCH等，在另一个上行载波仅发送PRACH。
在一些实施例中，第一模块可以在前述第一下行载波和/或第二下行载波接收SSB以获取前述第一定时和/或第三定时。例如，可以在前述第一下行载波接收SSB以获取前述第一定时，在前述第二下行载波接收SSB以获取前述第三定时。再例如，在前述第一下行载波接收SSB以获取前述第一定时，进而根据第一定时确定第三定时，例如，转发器(NCR-MT)接收用于指示第一定时和第三定时之间的偏移的信息，进而根据第一定时及该偏移确定第三定时。再例如，在前述第二下行载波接收SSB以获取前述第三定时，进而根据第三定时确定第一定时，例如，转发器(NCR-MT)接收用于指示第一定时和第三定时之间的偏移的信息，进而根据第三定时及该偏移确定第一定时。
在一些实施例中，第一模块可以在前述第一上行载波和/或第二上行载波发送前导序列以获取前述第二定时和/或前述第四定时。
例如，可以在前述第一上行载波发送前导序列以获取前述第二定时，在前述第二上行载波发送前导序列以获取前述第四定时。
再例如，在前述第一上行载波发送前导序列以获取前述第二定时，进而根据第二定时确定第四定时，例如，转发器(NCR-MT)接收用于指示第二定时和第四定时之间的偏移的信息，进而根据第二定时及该偏移确定第四定时；再例如，转发器(NCR-MT)根据第一定时和第三定时之间的偏移以及第二定时确定第四定时。
再例如，在前述第二上行载波发送前导序列以获取前述第四定时，进而根据第四定时确定第二定时，例如，转发器(NCR-MT)接收用于指示第二定时和第四定时之间的偏移的信息，进而根据第四定时及该偏移确定第二定时；再例如，转发器(NCR-MT)根据第一定时和第三定时之间的偏移以及第四定时确定第二定时。
在一些实施例中，第一模块还可以接收用于指示上述第二定时和/或第四定时的信息，并根据该信息或者结合该信息确定或获取第二定时和/或第四定时。
在一些实施例中，为了获取第四定时，第一模块在第二频带(第二上行载波)发送前导序列，在第一频带(第一下行载波)或第二频带(第二下行载波)接收用于指示第四定时的信息。
在上述实施例中，上述信息可以由动态信令和/或半静态信令承载。这里的动态信令包括但不限于下行控制信息DCI、物理下行控制信道PDCCH等。这里的半静态信令包括但不限于MAC CE(媒体接入控制控制单元)信令、RRC(无线资源控制)信令等。
在上述实施例中，上述信息可以包括RAR(随机接入响应)、TA command(定时提前命令)、TA offset(定时提前偏移)(例如n-TimingAdvanceOffset)中的一种或多种，本申请不限于此。例如，RAR和TA command用于指示N TA的值，TA offset用于指示N TA offset的值，进而根据前述方法可以确定相应上行发送定时(第二定时和/或第四定时)。
在前述各实施例中，第一频带和第二频带是指工作频带(operating band)或者passband，但本申请不限于此。
在本申请实施例中，转发器的MT接收信号的载波(下行载波)和/或发送信号的载波(上行载波)称为转发器的MT的载波。转发器的MT的载波包括一个或多个载波。
在本申请实施例中，多个是指多于一个，或者两个或两个以上。
在一些实施例中，转发器的MT的载波不在转发器的转发模块的频带(或者说passband或者说载波)范围内。也就是说，转发器的转发模块不转发转发器的MT的载波上的信号(射频信号)。
在一些实施例中，转发器的MT的至少一个载波在转发器的转发模块的频带(或者说passband或者说载波)范围内。也就是说，转发器的转发模块转发转发器的MT的至少一个载波上的信号(射频信号)。
在一些实施例中，转发器的MT的至少一个载波在转发器的转发模块的频带(或者说passband或者说载波)范围内，并且，转发器的MT的至少一个载波不在转发器的转发模块的频带(或者说passband或者说载波)范围内。也就是说，转发器的 转发模块转发转发器的MT的至少一个载波上的信号(射频信号)，并且转发器的转发模块不转发转发器的MT的至少一个载波上的信号(射频信号)。
在前述各实施例中，转发器的转发模块的频带(或者说passband或者说载波)是指，被转发器的转发模块转发信号的频带(或者说passband或者说载波)，或者说，转发器的转发模块的工作频带(operating band)。转发器的转发模块的频带(或者说passband或者说载波)包括一个或多个频带(或者说passband或者说载波)。
在一些实施例中，转发器(MT或转发模块)在第二下行载波不接收物理控制信道(例如PDCCH)和/或物理数据信道(例如PDSCH)。例如，转发器在第二下行载波仅接收SSB和/或CSI-RS。
在一些实施例中，转发器(MT或转发模块)在第二上行载波不发送物理控制信道(例如PUCCH)和/或物理数据信道(例如PUSCH)。例如，转发器在第二上行载波仅接收PRACH和/或SRS。
在一些实施例中，转发器向网络设备发送能力信息，该能力信息用于指示该转发器的MT和/或转发模块支持的工作频带，和/或，该转发器的MT支持的TAG(定时提前组)数，和/或，该转发器的MT是否支持载波聚合，和/或，该转发器的MT支持的最大载波数，和/或，该转发器的转发模块是否可以接收信号。
下面结合具体的示例对本申请实施例的方法进行说明。
图11是转发器根据本申请实施例的方法接收信号的一个示例的示意图。
如图11所示，在这个示例中，转发器的MT的载波(第一下行载波C1)不在转发器的转发模块的频带(第二频带B2)内。转发器的第一模块(NCR-MT)在第一频带B1的第一下行载波C1接收信号，例如接收SSB、CSI-RS、PDCCH、PDSCH等中的一个或多个。转发器的转发模块(NCR-Fwd)在第二频带B2转发信号。
图12是转发器根据本申请实施例的方法接收信号的另一个示例的示意图。
图12所示，在这个示例中，转发器在第一频带B1和/或第二频带B2的2个或2个以上的载波上接收信号，其中的2个载波分别称为第一下行载波C1和第二下行载波C2。转发器的MT在第一下行载波C1上接收信号，例如接收SSB、CSI-RS、PDCCH、PDSCH等中的一个或多个。
此外，针对第二下行载波C2，在一些情况下，转发器的MT(NCR-MT)在第二下行载波C2上接收信号，例如接收SSB和/或CSI-RS，也就是说，转发器的MT的 至少一个载波(第一下行载波C1)不在转发器的转发模块的频带(第二频带B2)内，至少一个载波(第二下行载波C2)在转发器的转发模块的频带(第二频带B2)内；在另一些情况下，转发器的转发模块(NCR-Fwd)在第二下行载波C2上接收信号，例如接收SSB和/或CSI-RS，也就是说，转发器的MT的载波(第一下行载波C1)不在转发器的转发模块的频带(第二频带B2)内，转发器的转发模块在其频带(第二频带B2)内的载波(第二下行载波C2)接收信号。
在上述示例中，第一下行载波C1和/或第二下行载波C2从属或不从属于小区，例如，第一下行载波C1从属于小区，第二下行载波C2不从属于小区。在第一下行载波C1和第二下行载波C2从属于小区的情况下，第一下行载波C1和第二下行载波C2属于相同小区或不同小区。图12中假设第一下行载波C1和第二下行载波C2属于不同小区，第一下行载波C1例如属于Pcell(也就是说，第一下行载波C1是Pcell的下行载波)，第二下行载波C2例如属于PScell或Scell(也就是说，第二下行载波C2是PScell或Scell的下行载波)，但本申请不限于此。
图13是转发器根据本申请实施例的方法发送信号的一个示例的示意图。
如图13所示，在这个示例中，转发器的MT的载波(第一上行载波C3)不在转发器的转发模块的频带(第二频带B2)内。转发器的第一模块(NCR-MT)在第一频带B1的第一上行载波C3上发送信号，例如发送PRACH、SRS、PUCCH、PUSCH等中的一个或多个。转发器的转发模块(NCR-Fwd)在第二频带B2转发信号。
从中心频率和/或所属的小区的角度，第一上行载波C3和上述第一下行载波C1相同或不同。也就是说，第一上行载波C3和上述第一下行载波C1可以分别是同一小区(例如Pcell)的上行载波和下行载波。两者是TDD或FDD的。
图14是转发器根据本申请实施例的方法发送信号的另一个示例的示意图。
如图14所示，转发器在第一频带B1和/或第二频带B2的2个或2个以上载波上发送信号，其中的2个载波分别称为第一上行载波C3和第二上行载波C4。转发器的MT在第一上行载波C3上发送信号，例如发送PRACH、SRS、PUCCH、PUSCH等中的一个或多个。
针对第二上行载波C4，在一些情况下，转发器的MT(NCR-MT)在第二上行载波C4上发送信号，例如发送PRACH和/或SRS等，也就是说，转发器的MT的至少一个载波(第一上行载波C3)不在转发器的转发模块的频带(第二频带B2)内，至 少一个载波(第二上行载波C4)在转发器的转发模块的频带(第二频带B2)内；在另一些情况下，转发器的转发模块(NCR-Fwd)在第二上行载波C4发送信号，例如发送PRACH和/或SRS等，也就是说，转发器的MT的载波(第一上行载波C3)不在转发器的转发模块的频带(第二频带B2)内，转发器的转发模块在其频带(第二频带B2)内的载波(第二上行载波C4)发送信号。
从中心频率和/或所属的小区的角度，第一上行载波C3和上述第一下行载波C1相同或不同，第二上行载波C4和上述第二下行载波C2相同或不同。也就是说，第一上行载波C3和上述第一下行载波C1可以分别是同一小区(例如Pcell)的上行载波和下行载波。两者是TDD或FDD的。第二上行载波C4和上述第二下行载波C2可以分别是同一小区(例如PScell/Scell)的上行载波和下行载波。两者是TDD或FDD的。
在上述示例中，第一下行载波C1和/或第二下行载波C2和/或第一上行载波C3和/或第二上行载波C4从属或不从属于小区。在第一下行载波C1和第二下行载波C2从属于小区的情况下，第一下行载波C1和第二下行载波C2属于相同或不同小区。在第一上行载波C3和第二上行载波C4从属于小区的情况下，第一上行载波C3和第二上行载波C4属于相同或不同小区。其中，针对第一下行载波C1和第二下行载波C2属于相同小区的情况，例如，第一下行载波C1是该小区的NDL载波，第二下行载波C2是该小区的SDL载波，或者相反；针对第一上行载波C3和第二上行载波C4属于相同小区的情况，例如，第一上行载波C3是该小区的NUL，第二上行载波C4是该小区的SUL载波，或者相反。
在上述示例中，假设第一下行载波C1/第一上行载波C3和第二下行载波C2/第二上行载波C4属于不同小区，上述第一下行载波C1/第一上行载波C3例如属于Pcell，上述第二下行载波C2/第二上行载波C4例如属于PScell或Scell，但本申请不限于此。
在图11至图14的示例中，在一些实施方式中，第一模块在下行载波的下行BWP中接收信号，和/或，在上行载波的上行BWP中发送信号，但本申请不限于此。
图15是转发器根据本申请实施例的方法转发信号的一个示例的示意图。如图15所示，转发器151在第二下行载波C2接收SSB和/或在第二上行载波C4发送PRACH，进而确定第二模块的下行接收定时(第三定时)和/或上行发送定时(第四定时)，根据上述下行接收定时和/或上行发送定时，或者结合来自第一gNB 152的其他信息， 确定第二模块的下行发送定时(第五定时)和/或上行接收定时(第六定时)。
根据上述下行接收定时(第三定时)，转发器(第二模块)151可以从第二gNB 153接收信号，对接收到的信号进行处理(放大)后根据上述下行发送定时(第五定时)，将处理后的信号转发给UE 154；此外，根据上述上行接收定时(第六定时)，转发器(第二模块)151可以接收来自UE 154的信号，对接收到的信号进行处理(放大)后根据上述上行发送定时(第四定时)，将处理后的信号转发给第二gNB 153。
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。
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。
在本申请实施例中，转发器可以是直放站、射频转发器、射频中继器、直放站节点、转发器节点、中继器节点、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，但本申请不限于此，还可以是其它的设备。
根据本申请实施例的方法，通过获取第一定时和/或第二定时，能够实现转发器与基站(第一网络设备)之间的通信(信息交互)，此外，通过获取第三定时和/或第四定时，能够实现转发器对基站(第二网络设备)和终端设备之间的信号的转发。
第二方面的实施例
本申请实施例提供一种通信装置，该装置例如可以是转发器，也可以是配置于转发器的某个或某些部件或者组件。
图16是本申请实施例的通信装置的一个示意图，由于该装置解决问题的原理与第一方面的实施例的方法相同，因此其具体的实施可以参照第一方面的实施例的方法的实施，内容相同之处不再重复说明。
如图16所示，本申请实施例的通信装置1600包括第一模块1601和第二模块1602。
在本申请实施例中，第一模块1601获取第一定时，该第一定时至少用于第一模块1601在第一频带接收来自第一网络设备的信号，和/或，第一模块1601获取第二 定时，该第二定时至少用于第一模块1601在第一频带向第一网络设备发送信号。此外，第一模块1601还获取第三定时，该第三定时至少用于第二模块1602在第二频带接收来自第二网络设备的第三信号，该第三信号用于被转发，和/或，第一模块1601还获取第四定时，该第四定时至少用于第二模块1602在第二频带将来自终端设备的经过处理的第四信号转发给第二网络设备。在本申请实施例中，上述第一频带和上述第二频带在频域不重叠。
在一些实施例中，第一频带与第二频带属于不同定时提前组(TAG)。
在一些实施例中，第一网络设备和第二网络设备相同或者不同。
在一些实施例中，第一定时还用于第二模块1602在第一频带接收来自第一网络设备的第一信号，第一信号用于被转发，和/或，第二定时还用于第二模块1602在第一频带将来自终端设备的经过处理的第二信号转发给第一网络设备。
在一些实施例中，第一频带和第二频带的子载波间隔不同。
在一些实施例中，第一频带包括第一载波，第一载波包括第一下行载波和/或第一上行载波。
在一些实施例中，第一上行载波和第一下行载波在频域所处的位置相同或在频域不重叠。
在一些实施例中，第二频带包括第二载波，第二载波包括第二下行载波和/或第二上行载波。
在一些实施例中，第二上行载波和第二下行载波在频域所处的位置相同或在频域不重叠。
在一些实施例中，第一下行载波和第二下行载波的子载波间隔不同。
在一些实施例中，第一上行载波和第二上行载波的子载波间隔不同。
在一些实施例中，第一模块1601还在第二频带接收和/或发送信号。
在一些实施例中，第一模块1601还在第一下行载波和/或第二下行载波接收SSB以获取前述第一定时和/或第三定时。
在一些实施例中，第一模块1601还在第一上行载波和/或第二上行载波发送前导序列以获取前述第二定时和/或第四定时。
在一些实施例中，第一模块1601还接收用于指示第二定时和/或第四定时的信息。
在一些实施例中，上述用于指示第二定时和/或第四定时的信息由动态信令和/或 半静态信令承载。
其中，动态信令例如是下行控制信息DCI或物理下行控制信道PDCCH，半静态信令例如是MAC CE信令或者RRC信令。
在一些实施例中，上述用于指示第二定时和/或所述第四定时的信息包括RAR和/或TA command和/或TA offset。
在一些实施例中，上述第一频带位于第一频率范围内，上述第二频带位于第二频率范围内。
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。
在本申请实施例中，转发器可以是直放站、射频转发器、射频中继器、直放站节点、转发器节点、中继器节点、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，但本申请不限于此，还可以是其它的设备。
根据本申请实施例的装置，通过获取第一定时和/或第二定时，能够实现转发器与基站(第一网络设备)之间的通信(信息交互)，此外，通过获取第三定时和/或第四定时，能够实现转发器对基站(第二网络设备)和终端设备之间的信号的转发。
第三方面的实施例
本申请实施例提供了一种通信系统，该通信系统包括网络设备、转发器和终端设备。
在本申请实施例中，网络设备和终端设备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。
在本申请实施例中，网络设备被配置为向转发器(NCR-MT)发送信号和/或接收来自转发器(NCR-MT)的信号；和/或，网络设备被配置为通过转发器(NCR-Fwd)向终端设备发送信号和/或通过转发器(NCR-Fwd)接收来自终端设备的信号；转发器被配置为执行第一方面的实施例所述的方法，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转发器，该转发器例如可以是直放站、射频转发器、射频中继器、直放站节点、转发器节点、中继器节点、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，但本申请不限于此，还可以是其它的设备。
图17是本申请实施例的转发器的示意图。如图17所示，该转发器1700可以包括处理器1710和存储器1720；存储器1720存储有数据和程序1730，并耦合到处理器1710。值得注意的是，该图是示例性的；还可以使用其它类型的结构，来补充或代替该结构，以实现电信功能或其它功能。
例如，处理器1710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方法。
如图17所示，该转发器1700还可以包括：网络侧收发机1740-1和网络侧天线1750-1、终端侧收发机1740-2和终端侧天线1750-2以及信号放大电路1760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，转发器1700也并不是必须要包括图17中所示的所有部件；此外，转发器1700还可以包括图17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网络设备。
图18是是本申请实施例的网络设备的示意图。如图18所示，网络设备1800可以包括：中央处理器(CPU)1801和存储器1802；存储器1802耦合到中央处理器1801。其中该存储器1802可存储各种数据；此外还存储信息处理的程序，并且在中央处理器1801的控制下执行该程序，以接收终端设备发送的各种信息、并且向终端设备发送各种信息。
例如，处理器1801可以被配置为执行程序而向转发器的MT发送信号和/或接收来自所述转发器的MT的信号。关于网络设备和转发器的交互，已经在前面各实施例中做了详细说明，此处不再赘述。
此外，如图18所示，网络设备1800还可以包括：收发机1803和天线1804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，网络设备1800也并不是必须要包括图18中所示的所有部件；此外，网络设备1800还可以包括图18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网络设备。该网络设备包括：发送单元，用于向转发器 的移动终端发送信号，和/或，接收单元，用于接收来自所述转发器的移动终端的信号。关于网络设备的相关内容，已经在前述各实施例中做了说明，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以方面的实施例所述的方法。
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。
关于本实施例公开的上述实施方式，还公开了如下的附记：
1.一种通信方法，其中，所述方法包括：
转发器的第一模块获取第一定时，所述第一定时至少用于所述第一模块在第一频带接收来自第一网络设备的信号，和/或，所述转发器的第一模块获取第二定时，所述第二定时至少用于所述第一模块在第一频带向所述第一网络设备发送信号；
所述第一模块获取第三定时，所述第三定时至少用于所述转发器的第二模块在第二频带接收来自第二网络设备的第三信号，所述第三信号用于被转发，和/或，所述第一模块获取第四定时，所述第四定时至少用于所述第二模块在第二频带将来自终端设备的经过处理的第四信号转发给所述第二网络设备；
所述第一频带和所述第二频带在频域不重叠。
2.根据附记1所述的方法，其中，所述第一频带与所述第二频带属于不同定时提前组(TAG)。
3.根据附记1-2任一项所述的方法，其中，所述第一网络设备和所述第二网络设备相同或者不同。
4.根据附记1-3任一项所述的方法，其中，所述第一定时还用于所述转发器的所述第二模块在第一频带接收来自第一网络设备的第一信号，所述第一信号用于被转发，和/或，所述第二定时还用于所述第二模块在第一频带将来自终端设备的经过处理的第二信号转发给所述第一网络设备。
5.根据附记1-4任一项所述的方法，其中，所述第一频带和第二频带的子载波间隔不同。
6.根据附记1-5任一项所述的方法，其中，所述第一频带包括第一载波，所述第一载波包括第一下行载波和/或第一上行载波。
7.根据附记6所述的方法，其中，所述第一上行载波和所述第一下行载波在频域所处的位置相同或在频域不重叠。
8.根据附记1-7任一项所述的方法，其中，所述第二频带包括第二载波，所述第二载波包括第二下行载波和/或第二上行载波。
9.根据附记8所述的方法，其中，所述第二上行载波和所述第二下行载波在频域所处的位置相同或在频域不重叠。
10.根据附记6-9任一项所述的方法，其中，所述第一下行载波和所述第二下行载波的子载波间隔不同。
11.根据附记6-10任一项所述的方法，其中，所述第一上行载波和所述第二上行载波的子载波间隔不同。
12.根据附记1-11任一项所述的方法，其中，所述方法还包括：
所述第一模块在所述第二频带接收和/或发送信号。
13.根据附记6-12任一项所述的方法，其中，所述方法还包括：
所述第一模块在所述第一下行载波和/或所述第二下行载波接收SSB以获取所述第一定时和/或所述第三定时。
14.根据附记6-13任一项所述的方法，其中，所述方法还包括：
所述第一模块在所述第一上行载波和/或第二上行载波发送前导序列以获取所述第二定时和/或所述第四定时。
15.根据附记6-14任一项所述的方法，其中，所述方法还包括：
所述第一模块接收用于指示所述第二定时和/或所述第四定时的信息。
16.根据附记15所述的方法，其中，所述用于指示所述第二定时和/或所述第四定时的信息由动态信令和/或半静态信令承载。
17.根据附记16所述的方法，其中，所述动态信令是下行控制信息DCI或物理下行控制信道PDCCH。
18.根据附记16-17任一项所述的方法，其中，所述半静态信令是MAC CE信令或者RRC信令。
19.根据附记15-18任一项所述的方法，其中，所述用于指示所述第二定时和/或所述第四定时的信息包括RAR和/或TA command和/或TA offset。
20.根据附记1-19任一项所述的方法，其中，所述第一频带位于第一频率范围内， 所述第二频带位于第二频率范围内。
21.一种转发器，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20任一项所述的方法。
22.一种网络设备，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向转发器的MT发送信号和/或接收来自所述转发器的MT的信号。
23.一种通信系统，包括网络设备、终端设备以及转发器，其中，
所述网络设备被配置为向所述转发器(NCR-MT)发送信号和/或接收来自所述转发器(NCR-MT)的信号；和/或，所述网络设备被配置为通过所述转发器(NCR-Fwd)向所述终端设备发送信号和/或通过所述转发器(NCR-Fwd)接收来自所述终端设备的信号；
所述转发器被配置为执行附记1至20任一项所述的方法。

Claims (20)

  1. 一种通信装置，配置于转发器，其中，所述装置包括第一模块和第二模块，
    所述第一模块获取第一定时，所述第一定时至少用于所述第一模块在第一频带接收来自第一网络设备的信号，和/或，所述第一模块获取第二定时，所述第二定时至少用于所述第一模块在第一频带向所述第一网络设备发送信号；
    所述第一模块获取第三定时，所述第三定时至少用于所述第二模块在第二频带接收来自第二网络设备的第三信号，所述第三信号用于被转发，和/或，所述第一模块获取第四定时，所述第四定时至少用于所述第二模块在第二频带将来自终端设备的经过处理的第四信号转发给所述第二网络设备；
    所述第一频带和所述第二频带在频域不重叠。
  2. 根据权利要求1所述的装置，其中，所述第一频带与所述第二频带属于不同定时提前组。
  3. 根据权利要求1所述的装置，其中，所述第一定时还用于所述第二模块在第一频带接收来自第一网络设备的第一信号，所述第一信号用于被转发，和/或，所述第二定时还用于所述第二模块在第一频带将来自终端设备的经过处理的第二信号转发给所述第一网络设备。
  4. 根据权利要求1所述的装置，其中，所述第一频带和第二频带的子载波间隔不同。
  5. 根据权利要求1所述的装置，其中，所述第一频带包括第一载波，所述第一载波包括第一下行载波和/或第一上行载波。
  6. 根据权利要求5所述的装置，其中，所述第一上行载波和所述第一下行载波在频域所处的位置相同或在频域不重叠。
  7. 根据权利要求1所述的装置，其中，所述第二频带包括第二载波，所述第二载波包括第二下行载波和/或第二上行载波。
  8. 根据权利要求7所述的装置，其中，所述第二上行载波和所述第二下行载波在频域所处的位置相同或在频域不重叠。
  9. 根据权利要求5所述的装置，其中，所述第一下行载波和第二下行载波的子载波间隔不同。
  10. 根据权利要求5所述的装置，其中，所述第一上行载波和第二上行载波的子 载波间隔不同。
  11. 根据权利要求1所述的装置，其中，
    所述第一模块在所述第二频带接收和/或发送信号。
  12. 根据权利要求5所述的装置，其中，
    所述第一模块在所述第一下行载波和/或第二下行载波接收SSB以获取所述第一定时和/或所述第三定时。
  13. 根据权利要求5所述的装置，其中，
    所述第一模块在所述第一上行载波和/或第二上行载波发送前导序列以获取所述第二定时和/或所述第四定时。
  14. 根据权利要求1所述的装置，其中，
    所述第一模块接收用于指示所述第二定时和/或所述第四定时的信息。
  15. 根据权利要求14所述的装置，其中，所述用于指示所述第二定时和/或所述第四定时的信息由动态信令和/或半静态信令承载。
  16. 根据权利要求15所述的装置，其中，所述动态信令是下行控制信息物理下行控制信道。
  17. 根据权利要求15所述的装置，其中，所述半静态信令是媒体接入控制控制单元信令或者无线资源控制信令。
  18. 根据权利要求14所述的装置，其中，所述用于指示所述第二定时和/或所述第四定时的信息包括随机接入响应和/或定时提前命令和/或定时提前偏移。
  19. 一种网络设备，所述网络设备包括：
    发送单元，用于向转发器的移动终端发送信号，和/或，
    接收单元，用于接收来自所述转发器的移动终端的信号。
  20. 一种通信系统，包括网络设备、终端设备以及转发器，其中，
    所述网络设备被配置为向所述转发器发送信号和/或接收来自所述转发器的信号；和/或，所述网络设备被配置为通过所述转发器向所述终端设备发送信号和/或通过所述转发器接收来自所述终端设备的信号；
    所述转发器被配置为：
    通过第一模块获取第一定时，所述第一定时至少用于所述第一模块在第一频带接收来自第一网络设备的信号，和/或，所述第一模块获取第二定时，所述第二定时至 少用于所述第一模块在第一频带向所述第一网络设备发送信号；
    通过所述第一模块获取第三定时，所述第三定时至少用于第二模块在第二频带接收来自第二网络设备的第三信号，所述第三信号用于被转发，和/或，所述第一模块获取第四定时，所述第四定时至少用于所述第二模块在第二频带将来自终端设备的经过处理的第四信号转发给所述第二网络设备；
    所述第一频带和所述第二频带在频域不重叠。
PCT/CN2022/097238 2022-06-06 2022-06-06 一种通信方法、装置和系统 WO2023236022A1 (zh)

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