ON / OFF CONTROL METHOD, INFORMATION INSTRUCTION METHOD, REPEATER AND NETWORK DEVICE

Abstract

An on / off control method, an information instruction method, a repeater (500), and a network device (101) are provided. The method includes a step in which a mobile terminal (501) of the repeater (500) performs random access, and a step in which a transfer unit (502) of the repeater (500) is in an off state when the mobile terminal (501) of the repeater (500) transmits a random access preamble.

Description

[Technical Field]

[0001] The present invention relates to the field of communications technology. [Background technology]

[0002] Compared with the conventional 3G (third generation mobile communication technology) and 4G (fourth generation mobile communication technology) systems, the 5G (fifth generation mobile communication technology) system provides wider bandwidth and higher data rates, and can support more types of terminals and diverse industrial services.

[0003] Therefore, 5G systems will be deployed in new spectrum in addition to traditional telecommunications spectrum, with frequencies in the new spectrum having significantly higher frequencies than the traditional telecommunications spectrum used by 3G and 4G systems. For example, 5G systems may be deployed in millimeter wave bands (such as 28 GHz, 38 GHz, 60 GHz and above).

[0004] According to the wireless signal propagation rules, the higher the carrier frequency of the wireless signal, the greater the signal fading during propagation. Therefore, in actual deployment, the 5G system needs to strengthen cell coverage compared to traditional 3G and 4G systems. Especially for 5G systems deployed in the millimeter wave band, how to better strengthen the cell coverage of the 5G system has become an urgent issue that needs to be resolved.

[0005] The above description of the background art is merely for the purpose of explaining the configuration of the present invention more clearly and completely, and is provided for the understanding of those skilled in the art. These configurations described in the background art of the present invention should not be construed as being well known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0006] In order to better solve the coverage problem of cellular mobile communication systems in practical deployments, using a radio frequency repeater (RF relay / repeater) to amplify and forward communication signals between terminal devices and network devices is a relatively commonly used deployment method. Radio frequency repeaters are relatively widely applied in practical deployments of 3G systems and 4G systems. Generally, a radio frequency repeater is a device that amplifies and forwards signals between devices in the radio frequency domain. In other words, a radio frequency repeater is a non-regenerative relay node that only directly amplifies and forwards all received signals.

[0007] According to the discovery of the present inventors, a conventional radio frequency repeater cannot perform information interaction with other devices (e.g., network devices, terminal devices, etc.). Specifically, in terms of reception, a conventional radio frequency repeater does not support measuring / demodulating / decoding transmitted signals and does not receive signals other than transmitted signals. In terms of transmission, a conventional radio frequency repeater only amplifies and transmits signals, but does not support generating signals or transmitting signals generated by itself. Therefore, the transmission operation of a conventional radio frequency repeater is not controlled by a network (e.g., a network device, etc.). For example, the on / off state of a repeater is usually set manually.

[0008] According to the discovery of the present inventors, the on / off of a conventional repeater is usually manually configured and cannot dynamically match the data transmission between the network device and the UE. Generally, data transmission between the network device and the UE is not always performed. If the repeater is on when there is no data transmission between the network device and the UE, unnecessary power consumption increases, interference occurs with other devices, and network throughput may decrease. Therefore, compared with a conventional RF repeater, an NCR needs to have a function for controlling the on / off of the repeater function.

[0009] However, there is currently no way to control the on / off state of the transfer section.

[0010] Also, assuming that the NCR has the function of controlling the on / off of the transmission unit, how the NCR-MT performs uplink / downlink transmission, and / or how it performs measurements, and / or how it performs processing after the NCR-MT enters an idle / deactivated state are problems that need to be solved urgently.

[0011] In view of at least one of the above problems, embodiments of the present invention provide an on / off control method, an information indication method, a repeater, and a network device. [Means for solving the problem]

[0012] In one aspect of an embodiment of the present invention, there is provided an on / off control method applied to a repeater, the method including the steps of: a mobile terminal of the repeater performing random access; and a forwarding unit of the repeater being in an off state when the mobile terminal of the repeater transmits a random access preamble.

[0013] Another aspect of an embodiment of the present invention provides a repeater including a mobile terminal that performs random access and a forwarding unit that is in an off state when the mobile terminal of the repeater transmits a random access preamble.

[0014] Another aspect of an embodiment of the present invention provides an information indication method applied to a network device, the method including a step of the network device sending indication information to a mobile terminal of the repeater to indicate that a forwarding unit of the repeater is on and / or off, and / or a step of the network device sending second indication information to a mobile terminal of the repeater, the second indication information being used to indicate that the forwarding unit performs or does not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

[0015] Another aspect of an embodiment of the present invention provides a network device including a transmitter, wherein the transmitter transmits instruction information to a mobile terminal of the repeater to indicate that a forwarding unit of the repeater is on and / or off, and / or transmits second instruction information to the mobile terminal of the repeater, the second instruction information being used to indicate that the forwarding unit performs or does not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

[0016] Another aspect of the embodiment of the present invention provides a communication system including the repeater and / or the network device described above.

[0017] One of the advantageous effects of an embodiment of the present invention is that, by taking into account the relationship between NCR-MT and NCR-Fwd, the on / off of the forwarding unit of the repeater is controlled so that the time domain resource corresponding to the on state of the forwarding unit matches the time domain resource for data transmission between the network device and the terminal device, thereby saving the power consumption of the repeater, reducing interference, and improving network throughput.

[0018] As shown in the following description and drawings, specific embodiments of the present invention are disclosed in detail to illustrate ways in which the principles of the present invention can be employed. However, the scope of the present invention is not limited to these embodiments. The present invention encompasses all modifications, alterations, and equivalents within the spirit and scope of the appended claims.

[0019] Features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in other embodiments, or may be substituted for features in other embodiments.

[0020] It should be noted that in this text, the term "comprise / have" means the presence of a feature, element, step or component, and does not exclude the presence or addition of one or more other features, elements, steps or components. [Brief explanation of the drawings]

[0021] Elements and features depicted in one drawing and one embodiment of an example of the invention may be combined with elements and features shown in one or more drawings or embodiments, and in the drawings, like reference numerals may indicate corresponding elements in multiple drawings and may indicate corresponding elements used in more than one embodiment.

[0022] The drawings included are used to further understand the embodiments of the present invention, constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the written description, explain the principles of the present invention. Note that the drawings described below are merely some examples of the present invention, and those skilled in the art can easily imagine other drawings based on these drawings. [Figure 1] FIG. 1 is a schematic diagram of an example of an application scenario of an embodiment of the present invention; [Figure 2] FIG. 1 is a schematic diagram of an example of an NCR according to an embodiment of the present invention. [Figure 3] FIG. 2 is a schematic diagram of an example of an on / off control method according to an embodiment of the present invention. [Figure 4] 1 is a schematic diagram of an example of an information indication method according to an embodiment of the present invention; [Figure 5] 1 is a schematic diagram of an example of a repeater according to an embodiment of the present invention; [Figure 6] 1 is a schematic diagram of an example of an information indication method according to an embodiment of the present invention; [Figure 7] FIG. 2 is a schematic diagram of an example of a network device according to an embodiment of the present invention. [Figure 8] 1 is a schematic diagram of an example of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] The above and other features of the present invention will become apparent from the following description. In the specification and drawings, specific embodiments of the present invention are disclosed in detail, and some of the embodiments in which the principles of the present invention can be adopted are shown. However, the present invention is not limited to the described embodiments. The present invention includes all modifications, variations, and equivalents within the scope of the appended claims. Below, various embodiments of the present invention will be described with reference to the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0024] In embodiments of the present invention, the terms "first," "second," etc. are used in titles to distinguish between different elements, but do not represent the spatial arrangement or temporal order of these elements, and these elements are not limited to these terms. The term "and / or" includes any and all combinations of one or more of the terms listed in the associated list. The terms "comprise," "include," "have," etc. refer to the presence of listed features, elements, elements, or components, but do not exclude the presence or addition of one or more other features, elements, elements, or components.

[0025] In the embodiments of the present invention, the singular forms "one," "the," etc., include the plural and should be understood broadly as "one kind" or "one class," and are not limited to "one." Furthermore, the term "said" should be understood to include both the singular and the plural, unless the context clearly indicates otherwise. Furthermore, the term "described in" should be understood to mean "described at least in part," and the term "based on" should be understood to mean "based at least in part," unless the context clearly indicates otherwise.

[0026] In embodiments of the present invention, the terms "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as, for example, Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0027] Additionally, communications between devices in a communications system may occur according to any stage of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future 5G, New Radio (NR), etc., and / or other currently known or future developed communications protocols.

[0028] In an embodiment of the present invention, the term "network device" refers to a device in a communication system that allows a terminal device to access the communication system and provides a service to the terminal device, and may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobility management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0029] Among them, the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), an IAB donor, etc., as well as a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may include some or all of these functions, and each base station may provide communication coverage for a particular 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.

[0030] In the embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives network services via, for example, a network device. The terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0031] Among them, the terminal device may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless modulation / demodulation device, a wireless communication device, a handheld device, a machine-type communication device, a laptop computer, a cordless phone, a smartphone, a smart watch, a digital camera, etc.

[0032] For example, in a scenario such as the Internet of Things (IoT), the user equipment may be a monitoring or measuring device or apparatus, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0033] To improve coverage, 3GPP Rel-17 study introduces an RF repeater to forward transmissions between a user equipment (UE) and a network device (base station). The RF repeater introduced in Rel-17 is transparent to the network device and the user equipment, i.e., the network device and the user equipment are unaware of the existence of the RF repeater.

[0034] 1 is a schematic diagram of an example of an application scenario of an embodiment of the present invention. As shown in FIG. 1, for convenience of explanation, one network device (for example, a gNB of a 5G base station) 101, one repeater 102, and one user equipment (UE) 103 are described as an example, but the present invention is not limited thereto.

[0035] 1, a terminal device 103 and a network device 101 establish a connection and communicate with each other. To improve communication quality, a channel / signal between the terminal device 103 and the network device 101 is transferred via a repeater 102. The interaction of the channel / signal between the network device 101, the terminal device 103, and the repeater 102 uses a beam-based receiving and transmitting method.

[0036] 1, the network device 101 may have a first cell / carrier, and the network device 101, the repeater 102, and the terminal device 103 can transmit / communicate in the first cell. However, the present invention is not limited thereto, and for example, the network device 101 may have another cell / carrier.

[0037] In an embodiment of the present invention, existing or future services may be performed between the network device and the terminal device, including, but not limited to, enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), highly reliable and low latency communications (URLLC), and vehicle-to-everything (V2X) communications.

[0038] Because conventional repeaters do not have the ability to communicate with network devices, they can help improve signal strength, but are not flexible enough to respond to complex environmental changes. Deploying conventional repeaters in a 5G network (especially in a high-frequency 5G network) may cause unnecessary interference to other network devices and / or terminal devices, and reduce the transmission efficiency (e.g., throughput) of the entire network. To make repeater forwarding more flexible to match the characteristics of the 5G network, network devices need to be able to support repeaters and configure repeater forwarding according to network conditions.

[0039] In 3GPP Rel-18, a network-controlled repeater (NCR) is proposed to forward signals between network devices and terminal devices to improve NR coverage. The NCR can directly communicate with the network devices via a control link to support the NCR forwarding operation.

[0040] 2 is a schematic diagram of an example of an NCR according to an embodiment of the present invention. As shown in FIG. 2, the NCR 202 is disposed between a network device 201 and a terminal device 203. The NCR 202 may include two modules / components: a repeater mobile terminal (NCR-MT) and a repeater forwarding unit (NCR-Fwd). The NCR-Fwd is also referred to as a routing unit (NCR-RU) of the NCR-RU. The NCR-MT is used to communicate with the network device, and the NCR-Fwd is used to forward signals transmitted and received between the network device and the terminal device. The NCR-MT and NCR-Fwd are functional entities that may be realized by the same or different hardware modules.

[0041] As shown in Fig. 2, the NCR of the embodiment of the present invention can have three links, namely, a control link (C-link), a backhaul link (BH link) for transmission, and an access link (AC link). Here, the C-link is used for communication between the NCR and the network device. The BH link is used by the repeater to receive signals to be transmitted from the network device or to transmit signals from the terminal device to the network device. The AC link is used by the repeater to transmit signals from the network device to the terminal device or to receive signals to be transmitted from the terminal device.

[0042] The following describes various aspects of the embodiments of the present invention with reference to the drawings. These aspects are merely illustrative and do not limit the present invention.

[0043] In an embodiment of the present invention, a repeater can communicate with a network device. The repeater can receive a communication channel / signal transmitted by the network device and obtain information transmitted by the network device to the repeater by demodulating / decoding the channel / signal. This signal processing process is hereinafter referred to as "communication." The repeater can also forward a channel / signal transmitted between a network device and a terminal device. The repeater can amplify or process the channel / signal without demodulating / decoding it. This signal processing process is hereinafter referred to as "forwarding." "Communication" and "forwarding" are collectively referred to as "transmission." Furthermore, "transmitting or receiving (using a beam) in an AC link" can be equivalent to "transferring (using a beam) in an AC link," and "transmitting or receiving in a control link" can be equivalent to "communicating in a control link." The above terms are used merely for convenience of explanation and do not limit the present invention.

[0044] For convenience of explanation, a channel / signal directly communicating between a network device and a repeater, or between a third device (e.g., a terminal device) and a repeater may be referred to as a communication signal, and when transmitting a communication signal, the repeater needs to encode and / or modulate the communication signal, and when receiving a communication signal, the repeater needs to decode and / or demodulate the communication signal. Also, a channel / signal forwarded via a repeater may be referred to as a transport signal, and the repeater may perform signal processing such as amplification on the forwarded signal, but does not perform decoding and / or demodulation.

[0045] In an embodiment of the present invention, a repeater may be represented as a network-controlled repeater, forwarder, radio frequency repeater, radio frequency repeater, or as a repeater node, forwarder node, repeater node, or as a smart repeater, smart forwarder, smart repeater, smart repeater node, smart forwarder node, smart repeater node, etc., but the present invention is not limited thereto.

[0046] In the embodiments of the present invention, the network device may be a device of a serving cell of a terminal device, a device of a cell in which a repeater is located, a device of a serving cell of a repeater, or a parent node of a repeater. The present invention is not limited to the name of the repeater, and any device capable of realizing the above functions is included in the scope of the repeater according to the present invention.

[0047] In an embodiment of the present invention, a beam may be represented as a reference signal (RS), a transmission configuration indication (TCI), a spatial domain filter, etc., or may be represented as a beam index, a reference signal index, a transmission configuration indication index, a spatial domain filter index, etc. Examples of the reference signal include a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), an RS for a repeater, an RS transmitted by a repeater, etc. The TCI may be represented as a TCI state. However, the embodiment of the present invention is not limited thereto.

[0048] The following will be explained with reference to examples.

[0049] Example 1 The embodiment of the present invention provides an on-off control method, which will be explained from the repeater side.

[0050] 3 is a schematic diagram of an example of an on-off control method according to an embodiment of the present invention. As shown in FIG. 3, the method may include the following steps:

[0051] Step 301: The mobile terminal of the repeater performs random access.

[0052] Step 302: When the mobile terminal of the repeater sends a random access preamble, the transmission unit of the repeater is in an off state.

[0053] Note that the above-mentioned FIG. 3 merely exemplifies an embodiment of the present invention and is not limited thereto. For example, the execution order of each step may be adjusted as appropriate, and some other steps may be added or some steps may be deleted. Those skilled in the art may appropriately modify the above content and are not limited to the description of the above-mentioned FIG. 3.

[0054] In some embodiments, both the repeater mobile terminal (hereinafter referred to as NCR-MT) and the repeater forwarding part (NCR-Fwd) are functional entities within the repeater, and the NCR-Fwd and the NCR-MT may or may not have the capability to simultaneously transmit signals or simultaneously receive signals. The method may further include the step of the NCR-MT sending capability indication information indicating the capability to the network device.

[0055] In some embodiments, NCR-Fwd and NCR-MT simultaneously transmitting means that NCR-MT transmits uplink signals to the network equipment, and NCR-Fwd (receives uplink signals forwarded from the UE to the network equipment) forwards uplink signals from the UE to the network equipment. NCR-Fwd and NCR-MT simultaneously receiving means that NCR-MT receives downlink signals from the network equipment, and NCR-Fwd receives downlink signals from the network equipment to be forwarded to the UE (and forwards them to the UE). Here, the downlink signals to be forwarded to the UE may or may not include downlink signals received by NCR-MT.

[0056] In some embodiments, the NCR-Fwd and the NCR-MT do not have the capability to simultaneously transmit and / or simultaneously receive signals, and the NCR-MT may or may not transmit this capability indication information to the network device. The NCR-Fwd and the NCR-MT have the capability to simultaneously transmit or receive signals, and the NCR-MT may transmit this capability indication information to the network device, for example, reporting the capability indication information regarding whether or not to simultaneously transmit signals and whether or not to simultaneously receive signals, respectively.

[0057] In some embodiments, this capability indication information is used to indicate whether the NCR-Fwd and NCR-MT are capable of simultaneously transmitting and / or receiving signals. If the NCR-Fwd and NCR-MT are not capable of simultaneously transmitting and / or simultaneously receiving signals, the NCR-MT transmits capability indication information to the network device indicating that the NCR-Fwd and NCR-MT are not capable of simultaneously transmitting and / or simultaneously receiving signals. If the NCR-Fwd and NCR-MT are capable of simultaneously transmitting and / or simultaneously receiving signals, the NCR-MT transmits capability indication information to the network device indicating that the NCR-Fwd and NCR-MT are capable of simultaneously transmitting and / or simultaneously receiving signals.

[0058] In some embodiments, this capability indication information is used to indicate that the NCR-Fwd and the NCR-MT have the capability to simultaneously transmit and / or receive signals. If the NCR-Fwd and the NCR-MT do not have the capability to simultaneously transmit and / or receive signals, the NCR-MT does not send this capability indication information to the network device.

[0059] In some embodiments, the NCR-Fwd and NCR-MT do not have the ability to transmit signals simultaneously. In other words, the NCR-Fwd and NCR-MT are TDM on the uplink. The NCR-Fwd and NCR-MT do not have the ability to receive signals simultaneously. In other words, the NCR-Fwd and NCR-MT are TDM on the downlink. In other words, the above capability indication information is used to indicate whether the NCR-Fwd and NCR-MT are time division multiplexed (TDM) on the uplink and / or downlink, or to indicate that the NCR-Fwd and NCR-MT are not time division multiplexed (TDM) on the uplink and / or downlink.

[0060] For example, if the NCR-Fwd and NCR-MT are time division multiplexed (TDM) or not TDM, the NCR-MT may report to the network device whether the NCR-Fwd and NCR-MT are TDM, e.g., for the uplink and downlink, respectively. In some embodiments, in step 301, if the NCR-MT is in an RRC_IDLE state, an RRC_CONNECTED state, or an RRC_INACTIVE state, it performs random access.

[0061] For example, NCR-MT Initial access from RRC_IDLE state, RRC connection re-establishment procedure, If the uplink synchronization state is non-synchronized, DL / UL data arrives in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress); UL data arrival in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress) when there are no available PUCCH resources for SR; SR disorder, RRC triggered / requested synchronous reconfiguration (e.g. handover), RRC connection recovery procedure from RRC_INACTIVE state, Other SI requirements, Beam failure recovery, Persistent UL LBT failure in SpCell, SDT in RRC_INACTIVE state, and Initiate random access for at least one of the positioning in RRC_CONNECTED state (e.g., if TA is required for positioning).

[0062] The random access mentioned above may include contention-based random access and / or non-contention-based random access. For example, it may include two interactions (4-step RA) between the network device and the NCR-MT. In the first interaction, the NCR-MT initiates a random access request (including sending a random access preamble or a physical random access channel (PRACH) via MSG1) and receives a random access response (MSG2) fed back from the network device. In the second interaction, the NCR-MT sends information including an identifier to the network device (MSG3) and receives a random access response (MSG4) fed back from the network device. Alternatively, the random access may be a two-step random access (2-step RA), i.e., merging the existing MSG1 and MSG3 into a new MSGA, and merging MSG2 and MSG4 into a new MSGB. For details, please refer to the prior art, and the description thereof will be omitted here.

[0063] In some embodiments, in step 302, the on / off state of NCR-Fwd is related to NCR-MT, and when NCR-MT transmits the random access preamble, NCR-Fwd is in the off state (the transmitter is powered off and cannot perform forwarding operations), i.e., before NCR-MT transmits the random access preamble, NCR-Fwd enters the (transition) off state, and if NCR-Fwd is currently in the on state, after entering the (transition) off state, a short transition time elapses before entering the (transition) off state.

[0064] For example, the NCR-MT receives a first paging message before performing random access (i.e., before performing the first transmission of the random access preamble). The first paging message triggers the random access in step 301. After the NCR-MT receives the first paging message, the NCR-Fwd enters the off state.

[0065] In some embodiments, the method may further include NCR-Fwd being in an off state (by default) when the NCR-MT transmits HARQ-ACK information for MSG.3 and / or MSG.4 and / or HARQ-ACK information for MSG.2 (RAR), and / or when the NCR-MT receives MSG.2 and / or MSG.4.

[0066] In some embodiments, the method further includes NCR-Fwd being off (by default) when the NCR-MT performs random access, where NCR-Fwd is off (by default) throughout the entire random access procedure. The method differs from the above embodiments in further including an interval time between transmission and reception of each MSG.

[0067] In some embodiments, the method may further include the NCR-MT receiving fifth indication information sent by the network device. The fifth indication information is used to indicate whether the NCR-Fwd is on or off when the NCR-MT performs random access. That is, the NCR-Fwd needs to determine the forwarding operation state when the NCR-MT performs random access according to the fifth indication information, and the state is not the default state.

[0068] In some embodiments, regarding when / how / to enter the on state, the method may further include not entering the on state (i.e., maintaining the off state) until the NCR-MT successfully completes random access, or not entering the on state (i.e., maintaining the off state) until the NCR-MT receives fourth indication information indicating that the NCR-Fwd is on.

[0069] The fourth instruction information and / or the fifth instruction information will be described later.

[0070] In some embodiments, the random access resource (PRACH occasion) for the NCR-MT to transmit the random access preamble is dedicated, i.e., a PRACH occasion allocated by the network device to the NCR-MT may be distinguished from a PRACH occasion allocated to another device (e.g., UE). When the network device receives a random access preamble, the network device can determine whether the random access preamble was transmitted by the NCR-MT based on the PRACH occasion used to transmit the random access preamble. In this case, NCR-Fwd is in the OFF state (by default) for the (dedicated) random access resource for the NCR-MT to transmit the random access preamble (i.e., the (dedicated) random access resource corresponding to the PRACH occasion allocated to the NCR-MT).

[0071] The above embodiment describes the on / off state of NCR-Fwd in the random access process of NCR-MT, and the following describes the influence of the on / off state of NCR-Fwd on the random access process of NCR-MT.

[0072] In some embodiments, before performing random access, the NCR-MT receives one or more third indications, which are used to indicate that NCR-Fwd is on and / or off.

[0073] In some embodiments, the time domain resource (second time domain resource) for which the NCR-Fwd is indicated to be in the off state (by the third indication information) includes a random access resource for transmitting a random access preamble (i.e., a random access resource corresponding to a PRACH occasion). Alternatively, if the random access resource (PRACH occasion) for the NCR-MT to transmit a random access preamble is dedicated, the time domain resource for which the NCR-Fwd is indicated to be in the off state includes a (dedicated) random access resource for the NCR-MT to transmit a random access preamble (i.e., a (dedicated) random access resource corresponding to a PRACH occasion assigned to the NCR-MT).

[0074] In some embodiments, if the network device can determine (distinguish) whether the random access process in step 301 is performed by the NCR-MT, the time domain resource (second time domain resource) indicating that NCR-Fwd is off includes a time domain resource for transmitting the HARQ-ACK information of MSG.3 and / or MSG.4 and / or the HARQ-ACK information of MSG.2 (RAR), where the third indication information is received before transmitting the HARQ-ACK information of MSG.3 and / or MSG.4 and / or the HARQ-ACK information of MSG.2 (RAR), or includes a time domain resource for receiving MSG.2 and / or MSG.4, where the third indication information is received before receiving MSG.2 and / or MSG.4. That is, the random access process may be initiated by the NCR-MT or by the terminal device. If the network device can determine that the random access process is initiated by NCR-MT, the time domain resource (second time domain resource) for which NCR-Fwd is indicated to be in the off state includes the time domain resource for transmitting HARQ-ACK information of MSG.3 and / or MSG.4 and / or HARQ-ACK information of MSG.2 (RAR).

[0075] Alternatively, in some embodiments, the NCR-MT selects a random access resource (for transmitting the random access preamble) based on the on and / or off states indicated by one or more third indication information.

[0076] For example, the random access resource selected by NCR-MT is within a time domain resource in which NCR-Fwd is in the off state (which may be indicated by one third indication information or by multiple third indication information according to a predefined rule).

[0077] In some embodiments, the random access resource selected by the NCR-MT being within the time domain resources for which NCR-Fwd is off includes the NCR-MT (at its MAC layer) selecting the random access resource from valid random access resources, and no random access resource overlapping with the time domain resources for which NCR-Fwd is off is available.

[0078] And / or, in some embodiments, when the random access resource selected by the NCR-MT is within a time domain resource for which NCR-Fwd is in the OFF state, the NCR-MT (MAC layer) reselects the random access resource if the random access resource selected by the NCR-MT (MAC layer) is within a time domain resource for which NCR-Fwd is in the ON state, where the selected random access resource is not indicated to the physical layer of the repeater (NCR-MT).

[0079] The third instruction information will be described later.

[0080] In some embodiments, if a random access resource selected by the NCR-MT overlaps with a time domain resource for which NCR-Fwd is predefined or indicated to be in the ON state, the NCR-MT does not transmit a random access preamble in the random access resource. Here, a method for determining the time domain resource for which NCR-Fwd is predefined or indicated to be in the ON state will be described later. In other words, if NCR-Fwd is predefined or indicated to be in the ON state for some or all of the time domain resources corresponding to the PRACH occasion selected by the NCR-MT, the NCR-MT (physical layer thereof) does not transmit a random access preamble in the time domain resource corresponding to the selected PRACH occasion.

[0081] In some embodiments, if the random access resource selected by the NCR-MT overlaps with a time domain resource for which NCR-Fwd is predefined or indicated to be in the on state, the NCR-MT (physical layer) may not transmit a random access preamble in the random access resource, and the NCR-MT (MAC layer) may reselect the random access resource, as described above.

[0082] In the above embodiment, the repeater's (NCR-MT's physical layer) not transmitting a random access preamble in a random access resource that overlaps with a time domain resource for which NCR-Fwd is on (i.e., not transmitting a random access preamble because the selected random access resource overlaps with a time domain resource for which NCR-Fwd is on) may or may not be counted as one random access attempt. The transmit power for the NCR-MT to transmit a random access preamble in the reselected random access resource may or may not be ramped up.

[0083] For example, it is counted as one random access attempt, i.e., the counter that counts the number of random access attempts is incremented by 1, and at the time of the next random access attempt, the counter that calculates the transmission power of the PRACH is incremented by 1 or is not incremented by 1.

[0084] In the above embodiments, the random access resource refers to a time-frequency domain resource for transmitting a random access preamble or a PRACH, and overlapping with a time domain resource in which NCR-Fwd is on means that the time domain resource overlaps with a time domain resource in which NCR-Fwd is on, and overlapping with a time domain resource in which NCR-Fwd is off means that the time domain resource overlaps with a time domain resource in which NCR-Fwd is off. The random access resource may be referred to as a PRACH resource or a RACH resource, for example.

[0085] The above has explained the relationship between the random access procedure of NCR-MT and the on / off state of NCR-Fwd.

[0086] The following describes the relationship between other uplink and downlink transmission procedures and measurement procedures of NCR-MT and the on / off state of NCR-Fwd.

[0087] In some embodiments, NCR-Fwd is in the off state (by default) when the NCR-MT receives a synchronization signal block and / or a system information (SIB) block and / or a paging message and / or a first reference signal.

[0088] Alternatively, the NCR-MT receives a synchronization signal block and / or a system information (SIB) block and / or a paging message and / or a first reference signal in a time domain resource other than the time domain resource for which NCR-Fwd is predefined or indicated to be on.

[0089] Alternatively, the network device may indicate an NCR-MT synchronization signal block index or a synchronization signal block time-domain index, which index is used to receive the synchronization signal block, the system information (SIB) block, the paging message, and / or the first reference signal, for example, to determine a time-domain resource and / or a network device side or a C-link beam on which the NCR-MT receives the synchronization signal block, the system information (SIB) block, the paging message, and / or the first reference signal. The time-domain resource (second time-domain resource) for which NCR-Fwd is indicated to be in an off state includes a time-domain resource for receiving the synchronization signal block, the system information (SIB) block, the paging message, and / or the first reference signal, or NCR-Fwd is off by default in the time-domain resource for receiving the synchronization signal block, the system information (SIB) block, the paging message, and / or the first reference signal.

[0090] The above-mentioned embodiments of other uplink and downlink transmission processes for random access are applicable when the NCR-MT and NCR-Fwd are not capable of simultaneously receiving and / or transmitting signals. The above-mentioned embodiments are also applicable when the NCR-MT and NCR-Fwd are capable of simultaneously receiving and / or transmitting signals. For example, they are applicable to the following cases: The NCR-MT and NCR-Fwd need to use the same beam to receive transmissions, and the beam for the NCR-MT to perform random access or receive synchronization signal blocks and / or system information (SIB) blocks and / or paging messages may not be the optimal beam for the NCR-Fwd, and the network device may not know that the NCR-Fwd cannot use that optimal beam. Therefore, the beam used when the NCR-Fwd is in the on state is completely controlled by the network device, and the optimal beam is used whenever possible. The above-mentioned applications are merely exemplary and not limiting.

[0091] In some embodiments, the beam used by the NCR-MT when performing measurements may not be the optimal beam for the NCR-Fwd. The method may further include the NCR-Fwd being in an off state by default when the NCR-MT performs measurements based on a first reference signal. The first reference signal and a reference signal associated with a TCI state or QCL assumption of the backhaul link of the NCR-Fwd are not quasi-colocated QCLed. Here, the TCI state of the backhaul link of the NCR-Fwd is predefined or indicated.

[0092] For example, the predefined TCI state of the BH-link of the NCR-Fwd includes the following: The TCI state is the TCI state indicated for the PDSCH / PDCCH / PUSCH / PUCCH of the NCR-MT, for example, the TCI state indicated for the last PDSCH / PDCCH received by the NCR-MT, or the unified TCI state indicated for the C-link, or a predetermined TCI state among multiple TCI states configured or activated for the C-link.

[0093] For example, the indication of the TCI state of the BH-link of the NCR-Fwd includes the following: The NCR receives sixth indication information sent by the network device, where the sixth indication information indicates that the TCI state of the BH-link is one TCI state of multiple TCI states configured or activated for the C-link.

[0094] The above-described embodiments of the NCR-Fwd on / off state in the NCR-MT random access procedure and the influence of the NCR-Fwd on / off state on the NCR-MT random access procedure may be implemented independently or in combination. That is, for example, they may be implemented independently without depending on the related embodiment of determining the random access resource, steps 301 and 302, and the description of such an example will be omitted here.

[0095] Furthermore, the above-described relationship between the NCR-MT random access procedure, other uplink transmission procedures, and measurement procedures and the on / off state of NCR-Fwd may be implemented independently or in combination of at least two of them. That is, for example, in the above-described measurement procedure, when the NCR-MT performs measurements based on the first reference signal, the fact that NCR-Fwd is in the off state by default may be implemented independently, regardless of steps 301 and 302, and an example of this will not be described here.

[0096] The following describes a method for controlling the on and / or off state of the forwarder when the NCR-MT is in the RRC_IDLE or RRC_INACTIVE state. When the NCR-MT is in the RRC_IDLE or RRC_INACTIVE state, the NCR-Fwd may perform forwarding (whether the NCR-Fwd is on needs to be determined in combination with other methods) or may not (corresponding to the case where the NCR-Fwd is off).

[0097] In some embodiments, whether to perform forwarding is a default, i.e., when the NCR-MT is in RRC_IDLE or RRC_INACTIVE state, the NCR-Fwd performs forwarding by default (whether the NCR-Fwd is on or not needs to be determined in combination with other methods) or not.

[0098] In some embodiments, whether or not to perform the transfer depends on the capabilities of the NCR and / or how the NCR-MT enters the RRC_IDLE or RRC_INACTIVE state and / or the network device's instructions.

[0099] In some embodiments, whether or not a transfer is performed is dependent on the instructions of the network device.

[0100] For example, the method may further include the NCR-MT receiving second indication information, which is used to indicate whether or not NCR-Fwd performs forwarding when the NCR-MT is in an RRC_IDLE state or an RRC_INACTIVE state. The second indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. If the second indication information indicates that NCR-Fwd is forwardable when the NCR-MT is in an RRC_IDLE state or an RRC_INACTIVE state, the forwarding unit performs forwarding based on the first indication information, i.e., it needs to further determine whether NCR-Fwd is in an ON state and / or an OFF state based on the one or more first indication information received by the NCR-MT. Here, (before the NCR-MT receives the first paging message (triggering the random access in step 301)), the NCR-MT is in an RRC_IDLE state or an RRC_INACTIVE state, and the NCR-Fwd determines that the NCR-Fwd is in an ON state and / or an OFF state based on one or more first indication information pieces received by the NCR-MT, where the one or more first indication information pieces are received when the NCR-MT is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state.

[0101] For example, the second indication information is a second paging message. When the NCR-MT is in the RRC_IDLE state or the RRC_INACTIVE state, the NCR-MT receives a second paging message indicating that the NCR-Fwd is on and / or off. The second paging message is not limited to whether it triggers a random access process, that is, the second paging message may or may not trigger the NCR-MT to perform random access (or a state transition process). Here, the second paging message includes a message indicating that the NCR-Fwd stops forwarding (forwarding not possible, off state). After the NCR-MT receives the second paging message, the NCR-Fwd is in the off state without forwarding, and (optionally) the NCR-MT performs random access.

[0102] In some embodiments, whether the transfer is possible or not is related to how the NCR-MT enters the RRC_IDLE or RRC_INACTIVE state, where the NCR-MT enters the RRC_IDLE or RRC_INACTIVE state at the direction of the network device, or enters the RRC_IDLE or RRC_INACTIVE state voluntarily.

[0103] For example, when the NCR-MT enters the RRC_IDLE state or the RRC_INACTIVE state at the instruction of the network device, the NCR-Fwd may perform forwarding, may perform forwarding according to the first instruction information, or may determine whether to perform forwarding according to the first instruction information in combination with the second instruction information, or may not perform forwarding.

[0104] For example, if the repeater voluntarily enters the RRC_IDLE or RRC_INACTIVE state, NCR-Fwd (by default) will not perform forwarding.

[0105] For example, if a radio link failure occurs in the repeater or if a link failure occurs (entering the RRC_IDLE state), NCR-Fwd will not perform forwarding.

[0106] In some embodiments, the repeater is in RRC_IDLE state (before the NCR-MT receives the first paging message) and NCR-Fwd (by default) does not perform forwarding.

[0107] In some embodiments, the method may further include the NCR reporting to the network device whether the NCR-Fwd performs forwarding after the NCR-MT enters the RRC_IDLE state or the RRC_INACTIVE state.

[0108] The first instruction information and the second instruction information will be described later.

[0109] Furthermore, the above-mentioned method of controlling the on and / or off state of the forwarding unit when the NCR-MT is in RRC_IDLE state or RRC_INACTIVE state, and the method of controlling the on and / or off state of the NCR-Fwd when the NCR-MT is in a random access process, other uplink / downlink transmission process, or measurement process, may be implemented alone or in combination of at least two of them; that is, for example, the method of controlling the forwarding unit to be in an off state when the NCR-MT is in RRC_IDLE state or RRC_INACTIVE state may be implemented alone without depending on steps 301 to 302, and an example of this will not be described here.

[0110] The embodiment of the present invention provides an information indication method and is explained from the repeater side.

[0111] 4 is a schematic diagram of an example of an information indication method according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:

[0112] Step 401: A network device sends instruction information to a mobile terminal of the repeater to indicate whether a forwarding unit of the repeater is on and / or off, and / or the network device sends second instruction information to the mobile terminal of the repeater, where the second instruction information is used to indicate whether the forwarding unit performs or does not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

[0113] In some embodiments, the indication information includes the above-mentioned first indication information, third indication information, fourth indication information, fifth indication information, and / or second paging message. The third indication information is received before random access, and the first indication information is received when the repeater is in RRC_CONNECTED state, RRC_INACTIVE state, and / or RRC_IDLE state. The first indication information and / or third indication information are for indicating that a forwarding unit of the repeater is on and / or off, the fourth indication information is for indicating that the forwarding unit of the repeater is on, and the fifth indication information is for indicating that the forwarding unit is on or off when a mobile terminal of the repeater performs random access.

[0114] In some embodiments, the indication may explicitly or implicitly indicate whether the transport is on and / or off, as will be explained in more detail below.

[0115] In some embodiments, to enable the repeater to have a function of controlling the on / off of the forwarding function, the repeater may receive instruction information for controlling the on and / or off of the forwarding part of the repeater, which may indicate whether the forwarding part of the repeater is on or off during a certain period (second time domain resource).

[0116] In some embodiments, this indication implicitly indicates whether the transport is on and / or off.

[0117] For example, this instruction information may include information for controlling the access link beam and / or information indicating the uplink / downlink direction, and may implicitly indicate whether the forwarding unit is on and / or off using information for controlling the access link beam (including access link beam instruction information) and / or information indicating the uplink / downlink direction (also referred to as forwarding direction instruction information).

[0118] For example, the forwarding unit is in an on state in a first time domain resource corresponding to a beam indicated by the information controlling an access link beam, and is in an off state (by default) in other time domain resources, and / or the forwarding unit is in an off state (by default) in flexible time domain resources indicated by the information indicating an uplink / downlink direction, and / or the forwarding unit is in an off state (by default) in time domain resources indicated as flexible time domain resources by the information indicating an uplink / downlink direction among the first time domain resources corresponding to a beam indicated by the information controlling an access link beam.

[0119] Here, when the information for controlling the access link beam is used to implicitly indicate the on and / or off of the forwarding unit, the information for controlling the access link beam includes first information indicating a first time domain resource, and the first time domain resource is also referred to as a second time domain resource corresponding to the on (and / or off) state of the forwarding unit.

[0120] For example, the instruction information may include only third information indicating an on and / or off state, and based on the third information, the second time domain resource may be determined or a starting position of the second time domain resource may be determined according to a predefined rule, and the forwarding unit is in an on state and / or an off state from the starting position until new instruction information is received and a corresponding operation is performed based on the new instruction information. For example, the third information may be used only to indicate an on state (corresponding to the fourth instruction information), and the second time domain resource may be determined or a starting position of the second time domain resource may be determined according to a predefined rule, and the forwarding unit is in an on state from the starting position until new instruction information is received and a corresponding operation is performed based on the new instruction information.

[0121] Furthermore, for example, the instruction information may include only first information indicating second time domain resources corresponding to an on state and / or an off state. For example, the instruction information may be used only to indicate second time domain resources corresponding to an on state, or only to indicate second time domain resources corresponding to an off state. In this way, the on state and / or the off state can be determined based on the first information without needing to explicitly include third information in the instruction information.

[0122] In some embodiments, the instruction information includes the information for controlling the access link beam and the third information (optionally, may further include information indicating the uplink / downlink direction).

[0123] For example, the third information is used only to indicate an off state, and in the first time domain resource (second time domain resource) that corresponds to the beam indicated by the information controlling the access link beam and is not indicated as an off state by the third information, the forwarding unit is in an on state, and for other time domain resources, the forwarding unit is in an off state by default.

[0124] Also, for example, the third information is used only to indicate an off state, and corresponds to the beam indicated by the information controlling the access link beam, and in the first time domain resource (second time domain resource) (where the off state is not indicated by the third information and / or where it is indicated to be flexible by the information indicating the uplink / downlink direction), the forwarding unit is in an on state, and for other time domain resources, the forwarding unit is in an off state by default.

[0125] In some embodiments, the indication information is carried by at least one of second RRC signaling, second MAC signaling, or second PHY signaling.

[0126] In some embodiments, the second time domain resource (indicated by the first information) indicated in this instruction information is periodic, or semi-persistent (the former two are also referred to as semi-static), or aperiodic (dynamic), or accordingly, the time domain resource (second time domain resource) corresponding to the on state and / or off state indicated in this instruction information is periodic, or semi-persistent, or aperiodic.

[0127] I. The second time domain resource is periodic or semi-persistent In some embodiments, this indication information is carried by second RRC signaling, the second RRC signaling including one or more pieces of second configuration information, and the second configuration information including all of the information in this indication information.

[0128] In some embodiments, this indication information is carried by second MAC signaling, the second MAC signaling including one or more pieces of second configuration information, and the second configuration information including all of the information in this indication information.

[0129] In some embodiments, this indication information is carried by second RRC signaling + second MAC signaling + second PHY signaling, the second RRC signaling includes one or more pieces of second configuration information, the second configuration information includes all or part of this indication information, and the second MAC signaling and / or the second PHY signaling further include identification information indicating one or more second configurations of the plurality of second configuration information and / or part of this indication information.

[0130] In some embodiments, the indication information is carried by second MAC signaling + second PHY signaling, the second MAC signaling including one or more pieces of second configuration information, the second configuration information including all or part of the indication information, and the second PHY signaling further including identification information indicating one or more of the plurality of second configuration information and / or part of the indication information.

[0131] Here, the first information includes information indicating second time domain resources within one period and / or period information, the second configuration information includes all or part of the first information indicating the second time domain resources, and the second MAC signaling and / or the second PHY signaling includes part of the first information.

[0132] Here, a portion of the first information included in the second configuration information includes period information, and a portion of the first information included in the second MAC signaling and / or the second PHY signaling includes information indicating a second time domain resource within one period.

[0133] Here, the information indicating the second time domain resource within one period includes at least one piece of third time length information and / or at least one piece of third offset information. The third time length includes a millisecond-level time length, a slot-level time length, and / or a symbol-level time length. The third offset includes a millisecond-level offset, a slot-level offset, and / or a symbol-level offset.

[0134] II. The second time domain resource is aperiodic In some embodiments, the indication information is carried by second PHY signaling, the second PHY signaling including one or more second information fields, at least one of which is used to indicate the second time domain resource. The second information field includes a time domain resource allocation information field. TDRA tables corresponding to different time domain resource allocation information fields may be the same or different, and the one or more second information fields are used to indicate at least one piece of fourth time length information and / or at least one piece of fourth offset information. For example, the second PHY signaling may be the above-mentioned second DCI, and the repeater receives the second DCI. The second DCI includes one or more pieces of indication information, and the first information used to indicate the second time domain resource corresponding to the beam is indicated by the second information field included in the second DCI. However, embodiments of the present invention are not limited thereto.

[0135] For example, the second DCI includes one or more TDRA information fields, and one TDRA information field indicates one row of TDRA configuration. The TDRA tables corresponding to different time domain resource allocation information fields may be the same or different.

[0136] For example, the second DCI includes one TDRA information field, and the TDRA information field (corresponding to the first information in the indication information) is used to indicate the second time domain resource corresponding to the ON and / or OFF state. Assuming that the second DCI can also be used to schedule the PDSCH / PUSCH of the NCR-MT, when the second DCI is used to schedule the PDSCH / PUSCH of the NCR-MT, the TDRA field is used to indicate the fourth time domain resource corresponding to the PDSCH / PUSCH. When the DCI is not used to schedule the PDSCH / PUSCH of the NCR-MT and is used to control the transmission operation of the transmission unit (indicating that the transmission unit is ON and / or OFF), the TDRA field is used to indicate the second time domain resource corresponding to the ON and / or OFF state of the transmission unit. In both cases, the TDRA tables corresponding to the TDRA information field may be the same or different. That is, the TDRA tables applied to the second time domain resource and the fourth time domain resource may be the same or different.

[0137] In another example, the second DCI includes two TDRA fields, one used to indicate the second time domain resource corresponding to the transmit unit being on and / or off, and the other used to indicate the fourth time domain resource corresponding to the PDSCH / PUSCH of the NCR-MT. Thus, the second DCI can support both scheduling the PDSCH / PUSCH of the NCR-MT and controlling the transmit operation of the transmit unit (indicating that the transmit unit is on and / or off).

[0138] In another example, the second DCI includes two TDRA fields, one used to indicate the second time domain resources corresponding to the transmission unit to be turned on and / or off, and the other used to indicate the first time domain resources corresponding to the access link beam. In both cases, the TDRA tables corresponding to the TDRA information fields are the same or different. That is, the TDRA tables applied to the second time domain resources and the first time domain resources are the same or different.

[0139] In some embodiments, the indication information included in the second DCI includes only third information indicating that the forwarder is in an off state, the off state indicated by the third information having a higher priority than an on state implicitly indicated by the information controlling the controlled access link beam carried by the first RRC signaling and / or the first MAC signaling and / or a lower priority than an on state implicitly indicated by the information controlling the controlled access link beam carried by the first DCI.

[0140] In some embodiments, a time domain resource allocation (TDRA) table (or simply referred to as a TDRA table) includes at least one row. Hereinafter, for convenience of explanation, one row is referred to as one TDRA configuration. That is, the TDRA table includes at least one TDRA configuration. One TDRA configuration includes at least one time domain resource configuration, which includes at least a symbol position within a slot (start symbol + length) configuration. One TDRA configuration may also include at least one slot offset K0 configuration, which may or may not be included in the time domain resource configuration. One TDRA configuration may further include other information (e.g., mapping type), which may or may not be included in the time domain resource configuration. The embodiments of the present invention are not limited thereto. Here, the symbol position configuration within a slot may, for example, include a start and length indicator SLIV, which corresponds to a valid combination of a starting symbol (S) and a length (L), or may, for example, correspond to a starting symbol configuration and a length configuration, which is a valid combination.

[0141] In the above example, one TDRA information field (the bit value of the information field is the configured row number) is used to indicate one TDRA configuration similar to the above second configuration information. This TDRA configuration (first information) includes at least one fourth time length information and / or at least one fourth offset information of the second time domain resource. The fourth offset may correspond to the above K0 configuration, and the fourth offset refers to an offset between the start position of the second time domain resource and the end position of the PDCCH carrying the second DCI. However, the embodiment of the present invention is not limited thereto. For example, the fourth offset may be an offset between the start position of the second time domain resource corresponding to one state and the end position of the second time domain resource corresponding to the immediately adjacent state, and the fourth offset may correspond to the above SLIV configuration.

[0142] In some embodiments, the first instruction information includes information indicating whether the forwarding unit is on and / or off (ON / OFF), and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information.

[0143] In some embodiments, the second indication information may be carried in an RRC release, and may be represented using an existing or newly added information field.

[0144] The embodiment of the present invention provides an on-off control method, which will be explained from the repeater side (not shown).

[0145] In some embodiments, the forwarding part of the repeater may or may not perform forwarding when the mobile terminal of the repeater is in RRC_IDLE or RRC_INACTIVE state.

[0146] In some embodiments, the forwarding unit performs the forwarding according to the first instruction information.

[0147] In some embodiments, the first instruction information includes information indicating whether the forwarding unit is on and / or off (ON / OFF), and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information.

[0148] In some embodiments, the first indication is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state.

[0149] In some embodiments, the mobile terminal receives a second indication, which is used to indicate whether or not to perform the transfer when the mobile terminal is in RRC_IDLE or RRC_INACTIVE state.

[0150] In some embodiments, the second indication is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state.

[0151] In some embodiments, the second indication information includes a second paging message.

[0152] The embodiment of the present invention provides an on-off control method, which will be explained from the repeater side (not shown).

[0153] In some embodiments, the mobile terminal of the repeater receives the first paging message before performing a random access (or before performing the first transmission of a random access preamble).

[0154] Until the mobile terminal of the repeater receives the first paging message, the repeater is in the RRC_IDLE state and the forwarding unit of the repeater does not perform forwarding.

[0155] In some embodiments, the repeater mobile terminal is instructed by a network device to enter the RRC_IDLE or RRC_INACTIVE state, or enters the RRC_IDLE or RRC_INACTIVE state autonomously.

[0156] The embodiment of the present invention provides an on-off control method, which will be explained from the repeater side (not shown).

[0157] If the repeater mobile terminal autonomously enters the RRC_IDLE state or the RRC_INACTIVE state, the forwarding unit does not perform forwarding.

[0158] The embodiment of the present invention provides an on-off control method, which will be explained from the repeater side (not shown).

[0159] In the event of a radio link failure or link failure of the repeater, the forwarding unit of the repeater will not perform forwarding.

[0160] The embodiment of the present invention provides an on-off control method, which will be explained from the repeater side (not shown).

[0161] The forwarding unit is (by default) in an off state when the repeater mobile terminal transmits HARQ-ACK information of MSG.3 and / or MSG.4 and / or HARQ-ACK information of MSG.2 (RAR), and / or when the repeater mobile terminal receives MSG.2 and / or MSG.4 and / or synchronization signal block and / or system information block and / or paging message and / or first reference signal.

[0162] The specific embodiment of the on / off control method has been described above, and the description thereof will be omitted here.

[0163] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0164] According to an embodiment of the present invention, by taking into account the relationship between NCR-MT and NCR-Fwd, the on / off of the forwarding unit of the repeater is controlled so that the time domain resource corresponding to the on state of the forwarding unit matches the time domain resource for data transmission between the network device and the terminal device, thereby saving the power consumption of the repeater, reducing interference, and improving network throughput.

[0165] <Example 2> An embodiment of the present invention provides a repeater, which may be, for example, the above-mentioned NCR, a network device or terminal device having a forwarding function, or one or more elements or components configured in the NCR, the network device, or the terminal device.

[0166] 5 is a schematic diagram of an example of a repeater according to an embodiment of the present invention. The principle of the problem-solving of the repeater is the same as that of the method of embodiment 1, so that the specific implementation may refer to the method of embodiment 1, and redundant explanations of similar contents will be omitted.

[0167] 5, a repeater 500 according to an embodiment of the present invention includes a mobile terminal 501 and a forwarding unit 502. The mobile terminal 501 and the forwarding unit 502 are functional entities, and their functions may be realized by the same or different hardware modules.

[0168] The mobile terminal 501 performs random access.

[0169] The forwarding unit 502 is in an off state when the mobile terminal of the repeater transmits a random access preamble.

[0170] The embodiment of the mobile terminal 501 and the forwarding unit 502 may refer to the first embodiment, and the description thereof will be omitted here.

[0171] In some embodiments, the mobile terminal of the repeater receives the first paging message before performing random access (or before performing the first transmission of the random access preamble), and the forwarder enters the off state after the mobile terminal of the repeater receives the first paging message.

[0172] In some embodiments, the repeater mobile terminal is in RRC_IDLE or RRC_INACTIVE state and the forwarder may or may not perform forwarding.

[0173] In some embodiments, the forwarding unit performs the forwarding according to the first instruction information.

[0174] In some embodiments, the first instruction information includes information indicating whether the forwarding unit is on and / or off (ON / OFF), and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information.

[0175] In some embodiments, the first indication is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state.

[0176] In some embodiments, the mobile terminal receives second indication information, which is used to indicate whether or not to perform the transfer when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

[0177] In some embodiments, the second indication is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state.

[0178] In some embodiments, the second indication information includes a second paging message.

[0179] In some embodiments, the mobile terminal of the repeater receives a second paging message to indicate the forwarding portion is on and / or off.

[0180] In some embodiments, the repeater is in RRC_IDLE state and the forwarder (by default) does not perform forwarding until the mobile terminal of the repeater receives the first paging message.

[0181] In some embodiments, the repeater mobile terminal is instructed by a network device to enter the RRC_IDLE or RRC_INACTIVE state, or enters the RRC_IDLE or RRC_INACTIVE state autonomously.

[0182] In some embodiments, when the network device instructs the repeater's mobile terminal to enter the RRC_IDLE state or the RRC_INACTIVE state, the forwarding unit performs or does not perform forwarding according to the first instruction information and / or the second instruction information.

[0183] In some embodiments, if the repeater mobile terminal autonomously enters RRC_IDLE or RRC_INACTIVE state, the forwarder (by default) does not perform forwarding.

[0184] In some embodiments, if a radio link failure or link failure of the repeater occurs, the forwarder does not perform the forwarding.

[0185] In some embodiments, the forwarding unit is (by default) in an off state when the mobile terminal of the repeater transmits HARQ-ACK information in MSG.3 and / or MSG.4 and / or HARQ-ACK information in MSG.2 (RAR), and / or when the mobile terminal of the repeater receives MSG.2 and / or MSG.4 and / or a synchronization signal block and / or a system information block and / or a paging message and / or a first reference signal.

[0186] In some embodiments, the forwarding unit is (by default) in an off state for the random access resource on which the repeater's mobile terminal transmits the random access preamble.

[0187] In some embodiments, the random access resources for the repeater's mobile terminals to transmit random access preambles are dedicated.

[0188] In some embodiments, the mobile terminal of the repeater receives one or more third indication information before performing random access, and the one or more third indication information are used to indicate whether the forwarding unit is on and / or off.

[0189] In some embodiments, the time domain resources for which the forwarder is indicated to be in an off state include random access resources for transmitting a random access preamble.

[0190] In some embodiments, the time domain resources for which the forwarding part is indicated to be in an off state include random access resources for the repeater's mobile terminal to transmit a random access preamble.

[0191] In some embodiments, the random access resources for the repeater's mobile terminals to transmit random access preambles are dedicated.

[0192] In some embodiments, if the random access resource selected by the repeater mobile terminal overlaps with a time domain resource for which the forwarding unit is predefined or indicated to be in an on state, the repeater mobile terminal does not transmit a random access preamble in the random access resource.

[0193] In some embodiments, if the random access resource selected by the repeater mobile terminal overlaps with a time domain resource for which the forwarding unit is predefined or indicated to be in an on state, the repeater mobile terminal reselects the random access resource.

[0194] In some embodiments, a repeater not transmitting a random access preamble in the random access resource may or may not count as one random access attempt.

[0195] In some embodiments, the transmit power for the repeater's mobile terminal to transmit the random access preamble in the reselected random access resource may or may not ramp up.

[0196] In some embodiments, the mobile terminal of the repeater selects a random access resource (for transmitting the random access preamble) depending on the on and / or off state indicated by the one or more third indication information.

[0197] In some embodiments, the random access resource selected by the mobile terminal of the repeater is within a time domain resource in which the forwarding part is in an off state.

[0198] In some embodiments, the mobile terminal of the repeater selects a random access resource from the valid random access resources, and random access resources that overlap with time domain resources for which the forwarding part is in the off state are unavailable.

[0199] In some embodiments, if the random access resource selected by the repeater's mobile terminal is within a time domain resource for which the forwarding part is on, the repeater's mobile terminal reselects a random access resource.

[0200] In some embodiments, if the random access resource selected by the mobile terminal of the repeater is within a time domain resource in which the forwarding part is in the ON state, the selected random access resource is not indicated to the physical layer of the repeater.

[0201] In some embodiments, when a mobile terminal of a repeater performs random access, the forwarding unit is (by default) in an off state.

[0202] In some embodiments, the repeater does not enter the ON state (i.e., remains in the OFF state) until a random access by the repeater's mobile terminal is successfully completed.

[0203] In some embodiments, the forwarder does not enter the ON state (ie, remains in the OFF state) until the mobile terminal of the repeater receives a fourth indication indicating that the forwarder is ON.

[0204] In some embodiments, the repeater mobile terminal receives fifth indication information, which is used to indicate whether the forwarding unit is on or off when the repeater mobile terminal performs random access.

[0205] In some embodiments, the repeater's mobile terminal is in RRC_IDLE state or RRC_CONNECTED state or RRC_INACTIVE state.

[0206] In some embodiments, the mobile terminal and the forwarding portion of the repeater may or may not have the ability to simultaneously transmit signals and / or receive signals.

[0207] In some embodiments, the mobile terminal of the repeater transmits capability indication information to indicate its capabilities.

[0208] In some embodiments, the mobile terminal and the forwarder of the repeater do not have the capability to simultaneously transmit signals and / or receive signals, and the mobile terminal of the repeater may or may not transmit a capability indication.

[0209] In some embodiments, the mobile terminal and the forwarder of the repeater have the capability to simultaneously transmit signals and / or receive signals, and the mobile terminal of the repeater transmits a capability indication.

[0210] In some embodiments, the random access includes contention-based random access and / or non-contention-based random access.

[0211] In some embodiments, the random access may include: Initial access from RRC_IDLE state, RRC connection re-establishment procedure, If the uplink synchronization state is non-synchronized, DL / UL data arrives in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress); UL data arrival in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress) when there are no available PUCCH resources for SR; SR disorder, RRC triggered / requested synchronous reconfiguration (e.g. handover), RRC connection recovery procedure from RRC_INACTIVE state, Other SI requirements, Beam failure recovery, Persistent UL LBT failure in SpCell, SDT in RRC_INACTIVE state, and It is used for at least one of the positioning in RRC_CONNECTED state (for example, when TA is required for positioning).

[0212] The embodiment of the present invention further provides a repeater: When the mobile terminal 501 of the repeater is in an RRC_IDLE state or an RRC_INACTIVE state, the forwarding unit 502 of the repeater performs or does not perform forwarding.

[0213] In some embodiments, the forwarding unit performs the forwarding according to the first instruction information.

[0214] In some embodiments, the first instruction information includes information indicating whether the forwarding unit is on and / or off (ON / OFF), and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information.

[0215] In some embodiments, the first indication is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state.

[0216] In some embodiments, the mobile terminal receives second indication information, which is used to indicate whether or not to perform the transfer when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

[0217] In some embodiments, the second indication is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state.

[0218] In some embodiments, the second indication information includes a second paging message.

[0219] The embodiment of the present invention further provides a repeater, wherein a mobile terminal 501 of the repeater receives a first paging message before performing a random access (or before performing a first transmission of a random access preamble).

[0220] Until the mobile terminal 501 of the repeater receives the first paging message, the repeater is in the RRC_IDLE state and the forwarding unit 502 of the repeater does not perform forwarding.

[0221] In some embodiments, the repeater mobile terminal is instructed by a network device to enter the RRC_IDLE or RRC_INACTIVE state, or enters the RRC_IDLE or RRC_INACTIVE state autonomously.

[0222] The embodiment of the present invention further provides a repeater: When the mobile terminal 501 of the repeater autonomously enters an RRC_IDLE state or an RRC_INACTIVE state, the forwarding unit 502 of the repeater does not perform forwarding.

[0223] The embodiment of the present invention further provides a repeater, wherein when a radio link failure or a link failure occurs in the mobile terminal 501 of the repeater, the forwarding unit 502 of the repeater does not perform forwarding.

[0224] An embodiment of the present invention further provides a repeater, wherein when a mobile terminal 501 of the repeater transmits HARQ-ACK information of MSG.3 and / or MSG.4 and / or HARQ-ACK information of MSG.2 (RAR), and / or when a mobile terminal of the repeater receives MSG.2 and / or MSG.4 and / or a synchronization signal block and / or a system information block and / or a paging message and / or a first reference signal, a forwarding unit 502 of the repeater is in an off state (by default).

[0225] The embodiment of the present invention further provides a repeater, wherein the mobile terminal 501 of the repeater receives indication information indicating whether the forwarding part of the repeater is on and / or off, and / or The repeater mobile terminal 501 receives the second instruction information, which is used to indicate whether the forwarding unit will perform or not perform forwarding when the mobile terminal is in RRC_IDLE state or RRC_INACTIVE state.

[0226] In some embodiments, the indication information includes a first indication information, a third indication information, a fourth indication information, a fifth indication information, and / or a second paging message.

[0227] 5 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies, such as bus connections, can be used. The various components or modules described above may be implemented by hardware devices, such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0228] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0229] According to an embodiment of the present invention, by taking into account the relationship between NCR-MT and NCR-Fwd, the on / off of the forwarding unit of the repeater is controlled so that the time domain resource corresponding to the on state of the forwarding unit matches the time domain resource for data transmission between the network device and the terminal device, thereby saving the power consumption of the repeater, reducing interference, and improving network throughput.

[0230] Example 3 The present embodiment of the present invention provides an information instruction method and will be explained from the perspective of a network device. The same content as in the first embodiment will not be explained again.

[0231] 6 is a schematic diagram of an example of an information indication method according to an embodiment of the present invention. As shown in FIG. 6, the method includes the following steps:

[0232] Step 601: A network device sends an indication to a mobile terminal of the repeater to indicate whether a forwarding unit of the repeater is on and / or off, and / or sends a second indication to the mobile terminal of the repeater, where the second indication is used to indicate whether the forwarding unit performs or does not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

[0233] The embodiment of the above step 601 may refer to Example 1, and the description of the overlapping contents will be omitted.

[0234] Note that the above-mentioned FIG. 6 merely exemplifies an embodiment of the present invention and is not limited thereto. For example, the execution order of each step may be adjusted as appropriate, and some other steps may be added or some steps may be deleted. Those skilled in the art may appropriately modify the above content and are not limited to the description of the above-mentioned FIG. 6.

[0235] Although the above only describes the steps or processes related to the present invention, the present invention is not limited thereto. The method according to the embodiment of the present invention may further include other steps or processes, and details of these steps or processes may be found in the related art.

[0236] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0237] According to an embodiment of the present invention, by taking into account the relationship between NCR-MT and NCR-Fwd, the on / off of the forwarding unit of the repeater is controlled so that the time domain resource corresponding to the on state of the forwarding unit matches the time domain resource for data transmission between the network device and the terminal device, thereby saving the power consumption of the repeater, reducing interference, and improving network throughput.

[0238] Example 4 An embodiment of the present invention provides a network device.

[0239] 7 is a schematic diagram of an example of a network device according to an embodiment of the present invention. The principle of solving the problem of the network device is the same as that of the method of embodiment 3, so that the specific implementation may refer to the method of embodiment 3, and redundant explanations of the similar contents will be omitted.

[0240] As shown in FIG. 7, a network device 700 according to an embodiment of the present invention includes the following components:

[0241] The transmitter 701 transmits instruction information to the mobile terminal of the repeater to indicate whether the forwarding unit of the repeater is on and / or off, and / or transmits second instruction information to the mobile terminal of the repeater, where the second instruction information is used to indicate whether the forwarding unit performs or does not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

[0242] The embodiment of the transmitting unit 701 may refer to the third embodiment, and the description thereof will be omitted here.

[0243] Although the above description only describes components or modules related to the present invention, the present invention is not limited thereto. The network device 700 according to the embodiment of the present invention may further include other components or modules. For specific details of these components or modules, please refer to the related art.

[0244] 7 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies, such as bus connections, may be used. The various components or modules described above may be implemented by hardware devices, such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0245] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0246] According to an embodiment of the present invention, by taking into account the relationship between NCR-MT and NCR-Fwd, the on / off of the forwarding unit of the repeater is controlled so that the time domain resource corresponding to the on state of the forwarding unit matches the time domain resource for data transmission between the network device and the terminal device, thereby saving the power consumption of the repeater, reducing interference, and improving network throughput.

[0247] <Example 5> An embodiment of the present invention provides a communication system. Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention. As shown in Fig. 1, a communication system 100 includes a network device 101, a repeater 102, and a terminal device 103. For simplicity, Fig. 1 illustrates only one network device, one repeater, and one terminal device as an example, but the embodiment of the present invention is not limited thereto.

[0248] In an embodiment of the present invention, existing services or services that can be implemented in the future can be performed between the network device 101 and the terminal device 103. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), highly reliable and low latency communication (URLLC), and vehicle-to-everything (V2X) communication. The repeater 102 is configured to execute the information indication method described in the first embodiment, and the network device 101 is configured to execute the information indication method described in the third embodiment, the contents of which are incorporated herein and will not be described again here.

[0249] An embodiment of the present invention further provides an electronic device, which is, for example, a repeater or a network device.

[0250] 8 is a schematic diagram of an example of an electronic device according to an embodiment of the present invention. As shown in FIG. 8, the electronic device 800 may include a processor 810 (e.g., a central processing unit (CPU)) and a memory 820, and the memory 820 is connected to the processor 810. The memory 820 may store various data, and may further store an information processing program 830, and execute the program 830 under the control of the processor 810.

[0251] For example, the processor 810 may execute a program to implement the information indication method or the on / off control method described in the first embodiment.

[0252] Also, for example, the processor 810 may execute a program to implement the information indication method described in the third embodiment.

[0253] 8, the electronic device 800 may further include a transceiver 840 and an antenna 850. The functions of the above components are similar to those of the prior art, and a description thereof will be omitted here. The electronic device 800 does not need to include all the units shown in FIG. 8. The electronic device 800 may further include units not shown in FIG. 8, and prior art may be referred to.

[0254] An embodiment of the present invention further provides a computer-readable program that, when executed in a repeater, causes a computer to execute the information indication method or on / off control method described in embodiment 1 in the repeater.

[0255] An embodiment of the present invention further provides a storage medium having a computer-readable program stored therein, which, when executed, causes a computer to execute the information indication method or on / off control method described in embodiment 1 in a repeater.

[0256] An embodiment of the present invention further provides a computer-readable program, which, when executed in a network device, causes a computer to execute the information instruction method described in embodiment 3 in the network device.

[0257] An embodiment of the present invention further provides a storage medium having a computer-readable program stored therein, the program, when executed, causing a computer to execute the information indication method described in embodiment 3 in a network device.

[0258] The above-described apparatus and method of the present invention may be realized by hardware or a combination of hardware and software. The present invention relates to a computer-readable program that, when executed by a logic unit, causes the logic unit to implement the above-described apparatus or components, or to implement the above-described various methods or steps. The present invention also relates to a storage medium for storing the above-described program, such as a hard disk, magnetic disk, optical disk, DVD, flash memory, etc.

[0259] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in the drawings, or one or more combinations of the functional block diagrams, may correspond to each software module in a computer program flow or each hardware module. These software modules may correspond to each step shown in the drawings. These hardware modules may be implemented by implementing these software modules in hardware, for example, using a field programmable gate array (FPGA).

[0260] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known to those skilled in the art. The storage medium may be connected to the processor so that the processor reads information from or writes information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card inserted into the mobile terminal. For example, if a device (e.g., a mobile terminal) uses a relatively large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0261] One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the figures may be implemented with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof for performing the functions described herein. One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the figures may be implemented with, for example, a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in combination with a DSP communication, or any other configuration.

[0262] Although the present invention has been described above with reference to specific embodiments, the above description is merely illustrative and does not limit the scope of protection of the present invention. Various modifications and changes may be made to the present invention without departing from the spirit and principles of the present invention, and these modifications and changes are also within the scope of the present invention.

[0263] Furthermore, the following supplementary notes are disclosed regarding the embodiments including the above examples. (Appendix 1) An on / off control method applied to a repeater, comprising: A step in which a mobile terminal of the repeater performs random access; a step in which a forwarding unit of the repeater is in an off state when a mobile terminal of the repeater transmits a random access preamble. (Appendix 2) The method of claim 1 further includes a step of receiving a first paging message before the mobile terminal of the repeater performs the random access (or before performing the first transmission of a random access preamble), and the forwarding unit entering an off state after the mobile terminal of the repeater receives the first paging message. (Appendix 3) 3. The method according to claim 1 or 2, wherein the mobile terminal of the repeater is in an RRC_IDLE state or an RRC_INACTIVE state, and the forwarding unit performs or does not perform forwarding. (Appendix 3a) The method described in Appendix 3, wherein the transfer unit performs the transfer according to first instruction information. (Appendix 3b) The method described in Appendix 3a, wherein the first instruction information includes information indicating the on and / or off (ON / OFF) of the forwarding unit, and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information. (Appendix 4) The method of claim 3a, wherein the first indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 5) The method of claim 1 or 3, further comprising a step in which the mobile terminal receives second indication information, the second indication information being used to indicate whether the forwarding unit will perform or will not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 5a) The method described in Supplementary Note 5, wherein the second indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 5b) 5a, wherein the second instruction information includes a second paging message. (Appendix 6) The method of claim 3 or 5a, further comprising a step of the repeater mobile terminal receiving a second paging message to indicate that the forwarding unit is on and / or off. (Appendix 7) The method according to Supplementary Note 2, wherein the repeater is in RRC_IDLE state and the forwarding unit (by default) does not perform forwarding until the mobile terminal of the repeater receives the first paging message. (Appendix 8) A method according to any one of Supplementary Notes 2 to 7, wherein the mobile terminal of the repeater is instructed by a network device to enter the RRC_IDLE state or the RRC_INACTIVE state, or autonomously enters the RRC_IDLE state or the RRC_INACTIVE state. (Appendix 9) The method described in Supplementary Note 8, wherein when the network device instructs the mobile terminal of the repeater to enter an RRC_IDLE state or an RRC_INACTIVE state, the forwarding unit performs or does not perform forwarding according to the first instruction information and / or the second instruction information. (Appendix 10) 10. The method of claim 9, wherein the forwarding unit (by default) does not perform forwarding if the mobile terminal of the repeater autonomously enters RRC_IDLE state or RRC_INACTIVE state. (Appendix 11) 11. The method according to claim 1 or 10, wherein the forwarding unit does not perform forwarding when a radio link failure or link failure of the repeater occurs. (Appendix 12) The method described in Supplementary Note 1, wherein the forwarding unit is in an off state (by default) when the mobile terminal of the repeater transmits HARQ-ACK information of MSG.3 and / or MSG.4 and / or HARQ-ACK information of MSG.2 (RAR), and / or when the mobile terminal of the repeater receives MSG.2 and / or MSG.4 and / or synchronization signal block and / or system information block and / or paging message and / or first reference signal. (Appendix 13) The method described in Supplementary Note 1, wherein the forwarding unit is in an off state (by default) for random access resources for the repeater's mobile terminal to transmit a random access preamble. (Appendix 14) 14. The method of claim 13, wherein the random access resource for the repeater mobile terminal to transmit the random access preamble is dedicated. (Appendix 15) The method described in Supplementary Note 1, wherein the mobile terminal of the repeater receives one or more third indication information before performing the random access, and the one or more third indication information are used to indicate whether the forwarding unit is on and / or off. (Appendix 16) 16. The method of claim 15, wherein the time domain resources for which the forwarding unit is indicated to be in an off state include random access resources for transmitting the random access preamble. (Appendix 17) The method described in Supplementary Note 15, wherein the time domain resources for which the forwarding unit is indicated to be in an off state include random access resources for the mobile terminal of the repeater to transmit a random access preamble. (Appendix 18) 18. The method of claim 17, wherein the random access resource for the repeater's mobile terminal to transmit the random access preamble is dedicated. (Appendix 19) The method described in Supplementary Note 1, wherein if a random access resource selected by the repeater mobile terminal overlaps with a time domain resource for which the forwarding unit is predefined or indicated to be in an on state, the repeater mobile terminal does not transmit a random access preamble in the random access resource. (Appendix 20) 20. The method of claim 1 or 19, wherein if the random access resource selected by the repeater mobile terminal overlaps with a time domain resource for which the forwarding unit is predefined or indicated to be in an on state, the repeater mobile terminal reselects the random access resource. (Appendix 21) 21. The method of claim 19 or 20, wherein the repeater not transmitting a random access preamble in the random access resource may or may not be counted as one random access attempt. (Appendix 22) 21. The method of claim 19 or 20, wherein the transmission power for transmitting a random access preamble by the mobile terminal of the repeater in the reselected random access resource is ramped up or not ramped up. (Appendix 23) The method described in Supplementary Note 15, wherein the mobile terminal of the repeater selects a random access resource (for transmitting a random access preamble) depending on the on state and / or off state indicated by the one or more third indication information. (Appendix 24) 24. The method of claim 23, wherein the random access resource selected by the mobile terminal of the repeater is within a time domain resource in which the forwarding unit is in an off state. (Appendix 25) 25. The method of claim 23 or 24, wherein the mobile terminal of the repeater selects a random access resource from valid random access resources, and random access resources that overlap with time domain resources for which the forwarding unit is in an off state are not available. (Appendix 26) 25. The method of claim 23 or 24, wherein if the random access resource selected by the mobile terminal of the repeater is within a time domain resource in which the forwarding unit is on, the mobile terminal of the repeater reselects a random access resource. (Appendix 27) 27. The method of claim 26, wherein if the random access resource selected by the mobile terminal of the repeater is within a time domain resource in which the forwarding unit is in an on state, the selected random access resource is not indicated to the physical layer of the repeater. (Appendix 28) The method described in Supplementary Note 1, wherein the forwarding unit is in an off state (by default) when the mobile terminal of the repeater performs random access. (Appendix 29) The method described in Supplementary Note 1, wherein the repeater does not enter an on state (i.e., remains in an off state) until the random access by the mobile terminal of the repeater is successfully completed. (Appendix 30) The method described in Appendix 1, wherein the forwarding unit does not enter the on state (i.e., remains in the off state) until the mobile terminal of the repeater receives fourth instruction information indicating that the forwarding unit is on. (Appendix 31) The method of Supplementary Note 1 further includes a step in which the mobile terminal of the repeater receives fifth instruction information, the fifth instruction information being used to indicate whether the forwarding unit is on or off when the mobile terminal of the repeater performs the random access. (Appendix 32) The method described in Supplementary Note 1, wherein the mobile terminal of the repeater is in an RRC_IDLE state, an RRC_CONNECTED state, or an RRC_INACTIVE state. (Appendix 33) 2. The method of claim 1, wherein the mobile terminal and the forwarding unit of the repeater may or may not have the ability to simultaneously transmit signals and / or receive signals. (Appendix 34) 34. The method of claim 33, wherein the repeater mobile terminal transmits capability indication information to indicate the capability. (Appendix 35) 35. The method of claim 34, wherein the mobile terminal and the forwarding unit of the repeater do not have the ability to simultaneously transmit signals and / or receive signals, and the mobile terminal of the repeater transmits or does not transmit the capability indication information. (Appendix 36) 36. The method of claim 34 or 35, wherein the mobile terminal and the forwarding unit of the repeater have the capability to simultaneously transmit signals and / or simultaneously receive signals, and the mobile terminal of the repeater transmits the capability indication information. (Appendix 37) 2. The method of claim 1, wherein the random access includes contention-based random access and / or non-contention-based random access. (Appendix 38) The random access is Initial access from RRC_IDLE state, RRC connection re-establishment procedure, If the uplink synchronization state is non-synchronized, DL / UL data arrives in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress); UL data arrival in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress) when there are no available PUCCH resources for SR; SR disorder, RRC triggered / requested synchronous reconfiguration (e.g. handover), RRC connection recovery procedure from RRC_INACTIVE state, Other SI requirements, Beam failure recovery, Persistent UL LBT failure in SpCell, SDT in RRC_INACTIVE state, and The method described in Supplementary Note 1 is used for at least one of positioning in the RRC_CONNECTED state (e.g., when TA is required for positioning). (Appendix 39) An on / off control method applied to a repeater, comprising: A method comprising the step of a forwarding unit of the repeater performing or not performing forwarding when a mobile terminal of the repeater is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 39a) 40. The method of claim 39, wherein the transfer unit performs the transfer according to first instruction information. (Appendix 39b) The method described in Appendix 39a, wherein the first instruction information includes information indicating the on and / or off (ON / OFF) of the forwarding unit, and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information. (Appendix 40) The method of claim 39, wherein the first indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 41) The method of claim 39, further comprising a step of receiving second indication information by the mobile terminal, the second indication information being used to indicate whether the forwarding unit will perform or will not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 41a) The method of claim 41, wherein the second indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 41b) 42. The method of claim 41, wherein the second instruction information includes a second paging message. (Appendix 42) An on / off control method applied to a repeater, comprising: receiving a first paging message before the mobile terminal of the repeater performs the random access (or performs a first transmission of a random access preamble); The repeater is in an RRC_IDLE state and a forwarding unit of the repeater does not perform forwarding until a mobile terminal of the repeater receives the first paging message. (Appendix 43) A method according to any one of Supplementary Notes 39 to 42, wherein the mobile terminal of the repeater is instructed by a network device to enter the RRC_IDLE state or the RRC_INACTIVE state, or autonomously enters the RRC_IDLE state or the RRC_INACTIVE state. (Appendix 44) An on / off control method applied to a repeater, comprising: A method comprising the step of a forwarding unit of the repeater not performing forwarding when a mobile terminal of the repeater autonomously enters an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 45) An on / off control method applied to a repeater, comprising: A method comprising the step of a forwarding unit of the repeater not performing forwarding when a radio link failure or link failure occurs for a mobile terminal of the repeater. (Appendix 46) An on / off control method applied to a repeater, comprising: A method comprising the step of a forwarding unit of the repeater being in an off state (by default) when a mobile terminal of the repeater transmits HARQ-ACK information of MSG.3 and / or MSG.4 and / or HARQ-ACK information of MSG.2 (RAR), and / or when a mobile terminal of the repeater receives MSG.2 and / or MSG.4 and / or a synchronization signal block and / or a system information block and / or a paging message and / or a first reference signal. (Appendix 47) An on / off control method applied to a repeater, comprising: receiving, by the mobile terminal of the repeater, indication information indicating the on and / or off of the forwarding part of the repeater; and / or A method comprising: a step in which a repeater mobile terminal receives second indication information, the second indication information being used to indicate whether or not the forwarding unit will perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 47a) 48. The method of claim 47, wherein the instruction information includes first instruction information, third instruction information, fourth instruction information, fifth instruction information, and / or a second paging message. (Appendix 48) An information indication method applied to a network device, comprising: The network device transmits an indication to the mobile terminal of the repeater to indicate whether the forwarding part of the repeater is on and / or off; and / or A method comprising a step in which the network device sends second instruction information to the repeater mobile terminal, the second instruction information being used to indicate whether the forwarding unit will perform or not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 48a) 49. The method of claim 48, wherein the instruction information includes first instruction information, third instruction information, fourth instruction information, fifth instruction information, and / or second paging message. (Appendix 49) A repeater comprising a memory in which a computer program is stored and a processor, the processor being configured to execute the computer program to realize an information indication method or an on / off control method described in any one of Supplementary Notes 1 to 47. (Appendix 50) 49. A network device comprising: a memory having a computer program stored therein; and a processor, the processor configured to execute the computer program to implement the information indication method of claim 48.

[0264] Furthermore, the following supplementary notes are disclosed regarding the embodiments including the above examples. (Appendix 1) A repeater, a mobile terminal that performs random access; A repeater including: a forwarding unit that is in an off state when a mobile terminal of the repeater transmits a random access preamble. (Appendix 2) A repeater as described in Appendix 1, wherein the mobile terminal of the repeater receives a first paging message before performing the random access (or before performing the first transmission of a random access preamble), and the forwarding unit enters an off state after the mobile terminal of the repeater receives the first paging message. (Appendix 3) A repeater as described in Appendix 1 or 2, wherein a mobile terminal of the repeater is in an RRC_IDLE state or an RRC_INACTIVE state, and the forwarding unit performs or does not perform forwarding. (Appendix 3a) The repeater according to claim 3, wherein the forwarding unit performs forwarding in accordance with first instruction information. (Appendix 3b) A repeater as described in Appendix 3a, wherein the first instruction information includes information indicating whether the forwarding unit is on and / or off (ON / OFF), and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information. (Appendix 4) The repeater according to Supplementary Note 3a, wherein the first indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 5) A repeater as described in Appendix 1 or 3, wherein the mobile terminal receives second instruction information, and the second instruction information is used to indicate whether or not the forwarding unit will perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 5a) The repeater according to Supplementary Note 5, wherein the second instruction information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 5b) 5. The repeater of claim 5a, wherein the second instruction information includes a second paging message. (Appendix 6) A repeater as described in Supplementary Note 3 or 5a, wherein a mobile terminal of the repeater receives a second paging message to indicate that the forwarding unit is on and / or off. (Appendix 7) The repeater according to Supplementary Note 2, wherein the repeater is in an RRC_IDLE state and the forwarding unit (by default) does not perform forwarding until the mobile terminal of the repeater receives the first paging message. (Appendix 8) A repeater as described in any one of Supplementary Notes 2 to 7, wherein a mobile terminal of the repeater is instructed by a network device to enter the RRC_IDLE state or the RRC_INACTIVE state, or autonomously enters the RRC_IDLE state or the RRC_INACTIVE state. (Appendix 9) A repeater as described in Appendix 8, wherein when a network device instructs a mobile terminal of the repeater to enter an RRC_IDLE state or an RRC_INACTIVE state, the forwarding unit performs or does not perform forwarding in accordance with the first instruction information and / or the second instruction information. (Appendix 10) 10. The repeater according to claim 9, wherein the forwarding unit (by default) does not perform forwarding if the mobile terminal of the repeater autonomously enters an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 11) The repeater according to claim 1 or 10, wherein the forwarding unit does not perform forwarding when a radio link failure or link failure occurs in the repeater. (Appendix 12) A repeater as described in Appendix 1, wherein the forwarding unit is in an off state (by default) when a mobile terminal of the repeater transmits HARQ-ACK information of MSG.3 and / or MSG.4 and / or HARQ-ACK information of MSG.2 (RAR), and / or when a mobile terminal of the repeater receives MSG.2 and / or MSG.4 and / or a synchronization signal block and / or a system information block and / or a paging message and / or a first reference signal. (Appendix 13) 2. The repeater according to claim 1, wherein the forwarding unit is in an off state (by default) for random access resources for a mobile terminal of the repeater to transmit a random access preamble. (Appendix 14) 14. The repeater of claim 13, wherein the random access resource for the mobile terminal of the repeater to transmit the random access preamble is dedicated. (Appendix 15) A repeater as described in Supplementary Note 1, wherein a mobile terminal of the repeater receives one or more third instruction information before performing the random access, and the one or more third instruction information are used to indicate on and / or off of the forwarding unit. (Appendix 16) 16. The repeater of claim 15, wherein the time domain resources for which the forwarding unit is indicated to be in an off state include a random access resource for transmitting the random access preamble. (Appendix 17) A repeater as described in Supplementary Note 15, wherein the time domain resources for which the forwarding unit is indicated to be in an off state include random access resources for a mobile terminal of the repeater to transmit a random access preamble. (Appendix 18) 18. The repeater of claim 17, wherein the random access resource for the mobile terminal of the repeater to transmit the random access preamble is dedicated. (Appendix 19) A repeater as described in Supplementary Note 1, wherein if a random access resource selected by a mobile terminal of the repeater overlaps with a time domain resource for which the forwarding unit is predefined or indicated to be in an on state, the mobile terminal of the repeater does not transmit a random access preamble in the random access resource. (Appendix 20) A repeater as described in Supplementary Note 1 or 19, wherein if the random access resource selected by the mobile terminal of the repeater overlaps with a time domain resource for which the forwarding unit is predefined or indicated to be in an on state, the mobile terminal of the repeater reselects the random access resource. (Appendix 21) 21. The repeater of claim 19 or 20, wherein the repeater not transmitting a random access preamble in the random access resource may or may not be counted as one random access attempt. (Appendix 22) A repeater as described in Appendix 19 or 20, wherein the transmission power for transmitting a random access preamble in the reselected random access resource by a mobile terminal of the repeater is ramped up or not ramped up. (Appendix 23) A repeater as described in Supplementary Note 15, wherein the mobile terminal of the repeater selects a random access resource (for transmitting a random access preamble) depending on the on state and / or off state indicated by the one or more third instruction information. (Appendix 24) A repeater as described in Supplementary Note 23, wherein the random access resource selected by the mobile terminal of the repeater is within a time domain resource in which the forwarding unit is in an off state. (Appendix 25) A repeater as described in Appendix 23 or 24, wherein a mobile terminal of the repeater selects a random access resource from available (valid) random access resources, and random access resources that overlap with time domain resources in which the forwarding unit is in an off state are not available. (Appendix 26) A repeater as described in Supplementary Note 23 or 24, wherein if the random access resource selected by the mobile terminal of the repeater is within a time domain resource in which the forwarding unit is on, the mobile terminal of the repeater reselects the random access resource. (Appendix 27) A repeater as described in Supplementary Note 26, wherein if a random access resource selected by a mobile terminal of the repeater is within a time domain resource in which the forwarding unit is in an on state, the selected random access resource is not indicated to the physical layer of the repeater. (Appendix 28) The repeater according to claim 1, wherein the forwarding unit is in an off state (by default) when a mobile terminal of the repeater performs random access. (Appendix 29) The repeater of claim 1, wherein the repeater does not enter an on state (i.e., remains in an off state) until the random access by the mobile terminal of the repeater is successfully completed. (Appendix 30) A repeater as described in Appendix 1, wherein the forwarding unit does not enter an on state (i.e., remains in an off state) until the mobile terminal of the repeater receives fourth instruction information indicating that the forwarding unit is on. (Appendix 31) The repeater described in Appendix 1, wherein the mobile terminal of the repeater receives fifth instruction information, and the fifth instruction information is used to indicate that the forwarding unit is on or off when the mobile terminal of the repeater performs the random access. (Appendix 32) A repeater as described in Supplementary Note 1, wherein a mobile terminal of the repeater is in an RRC_IDLE state, an RRC_CONNECTED state, or an RRC_INACTIVE state. (Appendix 33) 2. The repeater of claim 1, wherein the mobile terminal and the forwarding unit of the repeater may or may not have the ability to simultaneously transmit signals and / or receive signals. (Appendix 34) 34. The repeater of claim 33, wherein a mobile terminal of the repeater transmits capability indication information to indicate the capability. (Appendix 35) A repeater as described in Appendix 34, wherein the mobile terminal and forwarding unit of the repeater do not have the ability to simultaneously transmit signals and / or receive signals, and the mobile terminal of the repeater may or may not transmit the capability indication information. (Appendix 36) A repeater as described in Appendix 34 or 35, wherein the mobile terminal and forwarding unit of the repeater have the ability to simultaneously transmit signals and / or simultaneously receive signals, and the mobile terminal of the repeater transmits the capability indication information. (Appendix 37) 2. The repeater of claim 1, wherein the random access includes contention-based random access and / or non-contention-based random access. (Appendix 38) The random access is Initial access from RRC_IDLE state, RRC connection re-establishment procedure, If the uplink synchronization state is non-synchronized, DL / UL data arrives in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress); UL data arrival in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress) when there are no available PUCCH resources for SR; SR disorder, RRC triggered / requested synchronous reconfiguration (e.g. handover), RRC connection recovery procedure from RRC_INACTIVE state, Other SI requirements, Beam failure recovery, Persistent UL LBT failure in SpCell, SDT in RRC_INACTIVE state, and A repeater as described in Appendix 1, used for at least one of positioning in the RRC_CONNECTED state (e.g., when TA is required for positioning). (Appendix 39) A repeater including a mobile terminal and a forwarding unit, A repeater, wherein a forwarding unit of the repeater performs or does not perform forwarding when a mobile terminal of the repeater is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 39a) 40. The repeater of claim 39, wherein the forwarding unit performs forwarding in accordance with first instruction information. (Appendix 39b) A repeater as described in Appendix 39a, wherein the first instruction information includes information indicating whether the forwarding unit is on and / or off (ON / OFF), and / or access link beam instruction information, and / or backhaul link beam instruction information, and / or forwarding direction instruction information. (Appendix 40) The repeater of claim 39, wherein the first indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 41) The repeater of Supplementary Note 39, wherein the mobile terminal receives second instruction information, and the second instruction information is used to indicate whether or not the forwarding unit performs forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 41a) The repeater of claim 41, wherein the second indication information is received when the mobile terminal is in an RRC_CONNECTED state and / or an RRC_INACTIVE state and / or an RRC_IDLE state. (Appendix 41b) 42. The repeater of claim 41, wherein the second instruction information includes a second paging message. (Appendix 42) A repeater including a mobile terminal and a forwarding unit, the mobile terminal of the repeater receives a first paging message before performing the random access (or before performing a first transmission of a random access preamble); A repeater, wherein the repeater is in an RRC_IDLE state and a forwarding unit of the repeater does not perform forwarding until a mobile terminal of the repeater receives the first paging message. (Appendix 43) A repeater as described in any of Supplementary Notes 39 to 42, wherein a mobile terminal of the repeater is instructed by a network device to enter the RRC_IDLE state or the RRC_INACTIVE state, or autonomously enters the RRC_IDLE state or the RRC_INACTIVE state. (Appendix 44) A repeater including a mobile terminal and a forwarding unit, A repeater, wherein a forwarding unit of the repeater does not perform forwarding when a mobile terminal of the repeater autonomously enters an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 45) A repeater including a mobile terminal and a forwarding unit, A repeater, wherein when a radio link failure or a link failure occurs in a mobile terminal of the repeater, a forwarding unit of the repeater does not perform forwarding. (Appendix 46) A repeater including a mobile terminal and a forwarding unit, A repeater in which the forwarding unit of the repeater is in an off state (by default) when the mobile terminal of the repeater transmits HARQ-ACK information of MSG.3 and / or MSG.4 and / or HARQ-ACK information of MSG.2 (RAR), and / or when the mobile terminal of the repeater receives MSG.2 and / or MSG.4 and / or synchronization signal block and / or system information block and / or paging message and / or first reference signal. (Appendix 47) A repeater including a mobile terminal and a forwarding unit, the mobile terminal of the repeater receives an indication of whether the forwarding part of the repeater is on and / or off, and / or A repeater mobile terminal receives second instruction information, and the second instruction information is used to indicate whether the forwarding unit performs or does not perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 47a) The repeater of claim 47, wherein the instruction information includes first instruction information, third instruction information, fourth instruction information, fifth instruction information, and / or second paging message. (Appendix 48) A network device including a transmitter, the transmitter comprising: sending indication information to the mobile terminal of the repeater to indicate whether the forwarding part of the repeater is on and / or off; and / or A network device that transmits second instruction information to a repeater mobile terminal, the second instruction information being used to indicate whether or not the forwarding unit will perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state. (Appendix 48a) 49. The network device of claim 48, wherein the instruction information includes first instruction information, third instruction information, fourth instruction information, fifth instruction information, and / or a second paging message.

Claims

1. A repeater, a mobile terminal that performs random access; A repeater including: a forwarding unit that is in an off state when a mobile terminal of the repeater transmits a random access preamble.

2. 2. The repeater according to claim 1, wherein the forwarding unit is in an off state (by default) when a mobile terminal of the repeater transmits HARQ-ACK information in MSG.3 and / or MSG.4 and / or HARQ-ACK information in MSG.2 (RAR) and / or when a mobile terminal of the repeater receives MSG.2 and / or MSG.4 and / or a synchronization signal block and / or a system information block and / or a paging message and / or a first reference signal.

3. The repeater according to claim 1 , wherein the forwarding unit is in an off state (by default) for random access resources for a mobile terminal of the repeater to transmit a random access preamble.

4. The repeater according to claim 3 , wherein the random access resource for the mobile terminal of the repeater to transmit the random access preamble is dedicated.

5. The repeater according to claim 1, wherein the mobile terminal of the repeater receives one or more third instruction information before performing the random access, and the one or more third instruction information are used to indicate whether the forwarding unit is on and / or off.

6. The repeater according to claim 5 , wherein the time domain resources for which the forwarding unit is indicated to be in an off state include a random access resource for transmitting the random access preamble.

7. The repeater according to claim 5 , wherein the time domain resources for which the forwarding unit is indicated to be in an off state include random access resources for a mobile terminal of the repeater to transmit a random access preamble.

8. The repeater according to claim 7, wherein the random access resource for the mobile terminal of the repeater to transmit the random access preamble is dedicated.

9. 2. The repeater of claim 1, wherein if a random access resource selected by the mobile terminal of the repeater overlaps with a time domain resource in which the forwarding unit is predefined or indicated to be in an on state, the mobile terminal of the repeater does not transmit a random access preamble in the random access resource.

10. The repeater according to claim 1, wherein the mobile terminal of the repeater selects a random access resource (for transmitting a random access preamble) depending on an on state and / or an off state indicated by one or more third indication information.

11. The repeater according to claim 1 , wherein the forwarding unit is in an off state (by default) when a mobile terminal of the repeater performs random access.

12. The repeater of claim 1, wherein the mobile terminal of the repeater receives fifth instruction information, and the fifth instruction information is used to indicate that the forwarding unit is on or off when the mobile terminal of the repeater performs the random access.

13. The repeater according to claim 1 , wherein a mobile terminal of the repeater is in an RRC_IDLE state, an RRC_CONNECTED state, or an RRC_INACTIVE state.

14. 2. The repeater of claim 1, wherein the mobile terminal and the forwarding part of the repeater may or may not have the capability to simultaneously transmit signals and / or simultaneously receive signals.

15. The repeater according to claim 14, wherein a mobile terminal of the repeater transmits capability indication information to indicate the capability.

16. The repeater of claim 14, wherein the mobile terminal and the forwarding unit of the repeater do not have the ability to simultaneously transmit signals and / or simultaneously receive signals, and the mobile terminal of the repeater transmits or does not transmit the capability indication information.

17. The repeater of claim 1 , wherein the random access comprises contention-based random access and / or non-contention-based random access.

18. The random access is Initial access from RRC_IDLE state, RRC connection re-establishment procedure, When the uplink synchronization state is non-synchronized, DL / UL data arrives in RRC_CONNECTED state or RRC_INACTIVE state (SDT procedure in progress); UL data arrives in RRC_CONNECTED or RRC_INACTIVE state (SDT procedure in progress) when there are no available PUCCH resources for SR; SR disorder, RRC triggered / requested synchronous reconfiguration (e.g. handover), RRC connection recovery procedure from RRC_INACTIVE state, Requests for Other SI, Beam failure recovery, persistent UL LBT failure in SpCell; SDT in RRC_INACTIVE state, and The repeater according to claim 1 , which is used for at least one of positioning in an RRC_CONNECTED state (e.g., when TA is required for positioning).

19. A network device including a transmitter, the transmitter comprising: sending indication information to the mobile terminal of the repeater to indicate whether the forwarding part of the repeater is on and / or off; and / or A network device that transmits second instruction information to a repeater mobile terminal, the second instruction information being used to indicate whether or not the forwarding unit will perform forwarding when the mobile terminal is in an RRC_IDLE state or an RRC_INACTIVE state.

20. A communication system comprising a repeater according to claim 1 and / or a network device according to claim 19.

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