Method and apparatus for communication between a network device and a repeater

Abstract

The present invention provides a communication method and apparatus between a network device and a repeater. The apparatus includes a first receiving unit that receives first information from the network device and / or a first transmitting unit that transmits second information to the network device, and the repeater is identified by an identifier and / or a sequence.

Description

[Technical Field]

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

[0002] Compared with the traditional 2G (second generation mobile communication technology), 3G (third generation mobile communication technology), and 4G (fourth generation mobile communication technology) systems, 5G (fifth generation mobile communication technology) systems provide wider bandwidths and higher data rates, and can support a wider variety of terminals and diverse industrial services. Therefore, the bandwidth / operating bandwidth supported by 5G systems is much larger than that of 2G, 3G, and 4G systems, and 5G systems support higher carrier frequencies. For example, 5G systems can be deployed in the millimeter wave band.

[0003] However, the higher the carrier frequency, the greater the signal fading during transmission. Therefore, in the actual deployment of 5G systems, how to effectively enhance cell coverage, especially in the millimeter wave band, is an urgent issue to be solved.

[0004] 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]

[0005] In order to better solve the coverage problem in the actual deployment of cellular mobile communication systems, adopting a radio frequency repeater (RF relay / repeater) to amplify and forward communication signals between devices is a relatively common deployment method. Radio frequency repeaters are relatively widely applied in the actual deployment of 2G systems, 3G systems, and 4G systems, and their advantages are low cost, easy deployment, and no excessive delay increase. Typically, 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 simply directly amplifies and forwards all received signals.

[0006] A conventional radio frequency repeater does not have a communication function. In other words, a conventional radio frequency repeater cannot exchange information with other devices (e.g., base stations / terminal devices) to amplify / strengthen a target signal. Specifically, in terms of reception, a conventional radio frequency repeater does not support measuring / demodulating / decoding a transmitted signal, and does not receive signals other than the transmitted signal. In terms of transmission, a conventional radio frequency repeater simply amplifies and transmits signals, but does not support generating or transmitting signals it generates itself.

[0007] Therefore, the operational configurations (e.g., amplification gain, antenna direction, etc.) of conventional radio frequency repeaters are usually not adaptively and / or dynamically adjustable but are manually set or adjusted. For example, the antenna direction of a radio frequency repeater is usually manually set and adjusted at the time of initial installation so that the antenna on the base station side points in the direction of the base station's arriving wave and the antenna on the terminal side points to the location where deployment needs to be expanded. Also, for example, the amplification gain of a radio frequency repeater is also set and adjusted at the time of initial installation so as to achieve the desired coverage expansion as much as possible.

[0008] According to the discovery of the present inventors, extending coverage using conventional radio frequency repeaters is one viable solution to the coverage problem in the deployment of 5G systems. However, compared with 2G, 3G, and 4G systems, 5G systems employ advanced and complex MIMO (multiple-input multiple-output) technology. In 5G systems, especially for high carrier frequencies, directional antennas are the basic components of base stations and terminal devices, and signal transmission and reception based on beamforming technology is the basic signal transmission method in 5G systems. The (analog) beam direction, width, etc. of base stations and terminal devices may change dynamically due to factors such as positional changes (i.e., beam switching).

[0009] However, the antenna of a conventional radio frequency repeater cannot dynamically adjust its direction, has a wide beam, and the beam direction and beam width of its transmitting and receiving antenna cannot flexibly adapt to the position of the base station and the terminal device, and the dynamic changes in the beam direction and width of the transmitting and receiving antenna. When such a radio frequency repeater is configured in a 5G system, the beam direction and beam width of the transmitting and receiving antenna of the radio frequency repeater may not match the dynamic changes in the beam direction and width of the transmitting and receiving antenna of the base station and the terminal device, which significantly reduces the performance and effectiveness of amplifying or strengthening the target signal. Meanwhile, using a wide transmitting beam may cause significant interference to other devices (e.g., base stations or terminal devices) within a wide range, thereby increasing the noise and interference level of the entire system and reducing network throughput.

[0010] To solve one or more of the above problems, the repeater may adjust the direction and / or width of the terminal-side beam according to instructions from the base station. To determine a beam that matches the terminal device and / or to support beam correction by the terminal device, the repeater may periodically or semi-continuously scan or repeat the terminal-side beam according to instructions from the base station. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0011] To realize the above scheme, the repeater needs to have a communication function. An embodiment of the present invention provides a communication method and device between a network device and a repeater, which can support the repeater to receive information transmitted by the network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding and decryption, etc.) and / or transmit information to the network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, mapping to time-frequency resources, etc.). [Means for solving the problem]

[0012] A first aspect of an embodiment of the present invention provides a communication device between a network device and a repeater, the device including a first receiving unit that receives first information from the network device and / or a first transmitting unit that transmits second information to the network device, wherein the repeater is identified by an identifier and / or a sequence.

[0013] A second aspect of an embodiment of the present invention provides a communication device between a network device and a repeater, the device including a second transmitting unit that transmits first information to the repeater and / or a second receiving unit that receives second information from the repeater, wherein the repeater is identified by an identifier and / or a sequence.

[0014] In a third aspect of the present invention, there is provided a repeater including the apparatus according to the first aspect of the present invention.

[0015] In a fourth aspect of the present invention, there is provided a network device including the device according to the second aspect of the present invention.

[0016] In a fifth aspect of the present invention, there is provided a communication system including a repeater according to the third aspect of the present invention and / or a network device according to the fourth aspect of the present invention, and a terminal device.

[0017] A sixth aspect of an embodiment of the present invention provides a method for communication between a network device and a repeater, the method comprising: a step of the repeater receiving first information from the network device; and / or a step of the repeater transmitting second information to the network device, wherein the repeater is identified by an identifier and / or a sequence.

[0018] A seventh aspect of an embodiment of the present invention provides a method for communication between a network device and a repeater, the method comprising a step of the network device sending first information to the repeater and / or a step of the network device receiving second information from the repeater, wherein the repeater is identified by an identifier and / or a sequence.

[0019] In an eighth aspect of an embodiment of the present invention, there is provided a computer-readable program which, when executed in a communication device or repeater between a network device and a repeater, causes the communication device or repeater between the network device and the repeater to perform the communication method between a network device and a repeater described in the sixth aspect of an embodiment of the present invention.

[0020] In a ninth aspect of an embodiment of the present invention, there is provided a storage medium having a computer-readable program stored thereon, the computer-readable program causing a communication device or repeater between a network device and a repeater to execute the communication method between a network device and a repeater described in the sixth aspect of an embodiment of the present invention.

[0021] In a tenth aspect of the present invention, there is provided a computer-readable program which, when executed in a communication device or network device between a network device and a repeater, causes the communication device or network device between the network device and the repeater to perform the communication method between a network device and a repeater described in the seventh aspect of the present invention.

[0022] In an eleventh aspect of an embodiment of the present invention, there is provided a storage medium having a computer-readable program stored thereon, the computer-readable program causing a communication device between a network device and a repeater or a network device to execute the communication method between a network device and a repeater described in the seventh aspect of an embodiment of the present invention.

[0023] One of the advantageous effects of the embodiment of the present invention is as follows: By providing a communication function to the repeater, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to the network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to the instruction of the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to the instruction of the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0024] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0025] 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.

[0026] 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.

[0027] 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]

[0028] 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 embodiments of the present invention, and those skilled in the art can easily imagine other drawings based on these drawings. [Figure 1] 1 is a schematic diagram of an example of a communication method according to an embodiment of the present invention; [Figure 2] FIG. 1 is a schematic diagram of an example of communication using beams in a current system. [Figure 3]FIG. 1 is a schematic diagram of an example of an application scenario of an embodiment of the present invention. [Figure 4] FIG. 1 is a schematic diagram of an example of communication using beams in a system according to an embodiment of the present invention. [Figure 5] 1 is a logical schematic diagram of a repeater according to an embodiment of the present invention; [Figure 6] 1 is a schematic diagram of an example of a communication method between a network device and a repeater according to a first embodiment of the present invention; [Figure 7] FIG. 2 is a schematic diagram of an example of a method by which a repeater according to the first embodiment of the present invention acquires an identifier and / or a sequence. [Figure 8] FIG. 1 is a schematic diagram of information interaction in an example of how a repeater according to the first embodiment of the present invention obtains an identifier and / or sequence. [Figure 9] FIG. 10 is a schematic diagram of an example of another method by which a repeater according to the first embodiment of the present invention acquires an identifier and / or a sequence. [Figure 10] FIG. 10 is a schematic diagram of information interaction in another method for a repeater to obtain an identifier and / or sequence according to the first embodiment of the present invention. [Figure 11] FIG. 10 is a schematic diagram of an example of another method by which a repeater according to the first embodiment of the present invention acquires an identifier and / or a sequence. [Figure 12] FIG. 10 is a schematic diagram of information interaction in another method for a repeater to obtain an identifier and / or sequence according to the first embodiment of the present invention. [Figure 13] 1 is a schematic diagram of an example of a method in which a repeater according to a first embodiment of the present invention provides an identifier and / or a sequence. [Figure 14] FIG. 2 is a schematic diagram of information interaction in a method for a repeater to provide an identifier and / or sequence according to a first embodiment of the present invention. [Figure 15] FIG. 10 is a schematic diagram of an example of another method in which a repeater according to the first embodiment of the present invention provides an identifier and / or a sequence. [Figure 16]FIG. 10 is a schematic diagram of information interaction in another method in which a repeater according to Example 1 of the present invention provides an identifier and / or sequence. [Figure 17] FIG. 4 is a schematic diagram of another example of a communication method between a network device and a repeater according to the first embodiment of the present invention. [Figure 18] FIG. 2 is a schematic diagram of an example of a process for carrying control information over a physical channel according to Example 1 of the present invention; [Figure 19] FIG. 10 is a schematic diagram of an example of a communication method between a network device and a repeater according to a second embodiment of the present invention. [Figure 20] FIG. 10 is a schematic diagram of an example of a method in which a network device according to a second embodiment of the present invention provides an identifier and / or a sequence to a repeater. [Figure 21] FIG. 10 is a schematic diagram of another example of a method for a network device to provide an identifier and / or a sequence to a repeater according to a second embodiment of the present invention. [Figure 22] FIG. 10 is a schematic diagram of another example of a method for a network device to provide an identifier and / or a sequence to a repeater according to a second embodiment of the present invention. [Figure 23] FIG. 10 is a schematic diagram of an example of a method for a network device according to a second embodiment of the present invention to acquire an identifier and / or a sequence from a repeater. [Figure 24] FIG. 10 is a schematic diagram of another example of a method for a network device to acquire an identifier and / or a sequence from a repeater according to a second embodiment of the present invention. [Figure 25] FIG. 10 is a schematic diagram of an example of a communication device between a network device and a repeater according to a third embodiment of the present invention. [Figure 26] FIG. 10 is a schematic diagram of an example of a communication device between a network device and a repeater according to a fourth embodiment of the present invention. [Figure 27] FIG. 10 is a schematic block diagram of an example of a system configuration of a repeater according to a fifth embodiment of the present invention. [Figure 28] FIG. 10 is a schematic block diagram of an example of a system configuration of a network device according to a sixth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0029] 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.

[0030] 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 "including," "comprising," "having," 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.

[0031] 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.

[0032] In the present embodiment, "plurality" or "plural types" means at least two (two or more) or at least two types.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Here, 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), 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.). Also, 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.

[0037] 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.

[0038] Here, the terminal device may include, but is not limited to, a cellular 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.

[0039] Also, for example, in a scenario such as the Internet of Things (IoT), the user equipment may be a monitoring or measuring device or apparatus, and may include, but is 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.

[0040] In an embodiment of the present invention, the term "repeater" refers to a relay device for forwarding a transmission signal between a network device and a terminal device, for example, a relay device disposed in a serving cell corresponding to the network device, and may also be referred to as a repeater or a repeater node.

[0041] The following description will be given with reference to scenarios and problems of embodiments of the present invention, but the embodiments of the present invention are not limited thereto.

[0042] 1 is a schematic diagram of an example of a communication method according to an embodiment of the present invention. As shown in FIG. 1, a communication system 100 may include a network device 101, a terminal device 102, and a repeater 103.

[0043] In an embodiment of the present invention, existing services or future services may be performed between the network device 101 and the terminal device 102. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC).

[0044] As shown in FIG. 1, the repeater 103 receives a first RF signal from the network device 101, amplifies the first RF signal to obtain a first forwarding signal, and transmits it to the terminal device 102; and / or the repeater 103 receives a second RF signal from the terminal device 102, amplifies the second RF signal to obtain a second forwarding signal, and transmits it to the network device 101.

[0045] 1, the repeater 103 and the network device 101 may communicate with each other via a downlink communication link (also referred to as a downlink control link) (Down C-link (Comunication-link or Country-link)) and / or an uplink communication link (also referred to as an uplink control link) (Up C-link). The repeater 103 may support only some of the links shown in FIG. 1. For example, the repeater may support at least a downlink communication link as a communication link, and at least one of an uplink and a downlink as a forwarding link.

[0046] 2 is a schematic diagram of an example of communication using beams in a current system. As shown in FIG. 2, in a current communication system using a repeater, the repeater uses a wider beam and the antenna direction is fixed, so the beam direction and beam width of the repeater's transmitting and receiving antenna may not match the dynamic changes in the beam direction and beam width of the transmitting and receiving antenna of the gNB as a network device and the UE as a terminal device, which reduces the performance and effect of amplifying or strengthening the target signal. On the other hand, because the repeater uses a wider transmitting beam, it may cause significant interference to other devices (e.g., network devices or terminal devices) within a wider range, which increases the noise and interference level of the entire system and reduces network throughput.

[0047] 3 is a schematic diagram of an example of an application scenario of an embodiment of the present invention. As shown in FIG. 3, under a gNB 101 functioning as a network device, multiple repeaters, i.e., a first repeater 103-1 and a second repeater 103-2, are deployed, and the first repeater 103-1 and the second repeater 103-2 provide services for different UEs.

[0048] In this scenario, information transmission and / or reception between the network device and the repeater may need to be repeater specific or common to multiple repeaters. For example, the following communication methods need to be supported:

[0049] Information (e.g., control information, etc.) transmitted by a network device may be for one repeater (i.e., the information is repeater specific / dedicated) or for multiple repeaters (i.e., the information is group common). For convenience of explanation, a targeted transmission of information is referred to herein as a target repeater, and a target repeater can receive and determine all or part of the information as being intended for it and / or can determine which part of the information is intended for it. On the other hand, a non-target repeater cannot receive the information, or can receive the information and determine that the information is not intended for it. Also, for example, a repeater can transmit information (e.g., response information to control information, measurement report information, trigger information, request information, confirmation information (e.g., ACK / NACK), etc.) to a network device, and the network device can receive and determine the information as being from the repeater.

[0050] For example, as shown in Figure 3, information transmitted by gNB 101 may be intended for the second repeater 103-2, and the second repeater 103-2 may receive and determine all or part of the information as being intended for the second repeater 103-2 and / or determine which part of the information is intended for the second repeater 103-2. Meanwhile, the first repeater 103-1 may not receive the information, or may receive the information (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, decryption, etc.) and determine that the information is not intended for the first repeater 103-1. Also, for example, information transmitted by gNB 101 may be intended for the first repeater 103-1 and the second repeater 103-2, and both the first repeater 103-1 and the second repeater 103-2 may receive the information and determine which part of the information each corresponds to. Also, for example, the second repeater 103-2 may transmit information to the gNB 101, and the gNB 101 may receive the information and determine that the information is from the second repeater 103-2.

[0051] Current mechanisms are not capable of supporting the above communication methods.

[0052] 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.

[0053] Example 1 An embodiment of the present invention provides a communication method between a network device and a repeater, and the method is applied to the repeater.

[0054] In an embodiment of the present invention, the repeater has communication capabilities that allow it to receive information from and / or transmit information to the network devices.

[0055] In some embodiments, receiving includes at least one of detecting a sequence, demodulating, descrambling, decoding, and deciphering the information, and the like.

[0056] In some embodiments, transmitting includes at least one of generating information, generating a sequence, scrambling, encoding, modulating, mapping to time-frequency resources, and the like.

[0057] In some embodiments, generating the sequence includes scrambling the sequence, or generating the sequence does not include scrambling the sequence, and scrambling the sequence is a subsequent step to generating the sequence, or generating the sequence is a subsequent step to scrambling the sequence.

[0058] In some embodiments, the repeater is capable of receiving at least control information of the network devices.

[0059] In some embodiments, the control information is used to indicate the repeater's terminal device side beam (e.g., to indicate the beam direction and / or width used by the repeater's terminal side, and / or to indicate that the repeater periodically or semi-persistently beam scans or repeats the terminal side beam), and / or to indicate the repeater's transmit power, and / or to indicate the repeater's amplification gain, and / or to indicate the repeater's transmission direction (e.g., downlink transmission or uplink transmission).

[0060] In some embodiments, the repeater may be referred to as a network-controlled repeater (NC-repeater), although other names may be used and the various names for the repeater are not intended to limit embodiments of the present invention.

[0061] In some embodiments, the repeater includes a communication module (which may be referred to as an MT module) and a forwarding module (which may be referred to as an RU module), where the communication module is used to support communication functions (e.g., receiving and / or transmitting information) between the repeater and the network device, and the forwarding module is used to support the amplify-and-forward function of the repeater. In some embodiments, the communication module may control the forwarding module.

[0062] In some embodiments, the link between the network device and the communication module is a communication link or a control link. The communication module of the repeater can receive information from the network device via the communication link or the control link. The communication link or the control link may be based on an existing Uu interface. The communication module of the repeater can also apply the information received from the network device to the forwarding module through the internal operation of the repeater.

[0063] 4 is a schematic diagram of an example of communication using a beam in a system according to an embodiment of the present invention. As shown in FIG. 4, a repeater 103 uses a beam controlled by a gNB 101, which is a network device, to amplify and forward a signal between the gNB 101 and a UE 102, which is a terminal device.

[0064] FIG. 5 is a logical schematic diagram of a repeater according to an embodiment of the present invention. As shown in FIG. 5, the repeater 103 amplifies and forwards signals between the network device 101 and the terminal device 102 in a downlink forward link (or downlink forwarding link) (Down F-link (Forwarding-link)) and an uplink forward link (or uplink forwarding link) (Up F-link). For example, communication is also performed between the repeater 103 and the network device 101 via a downlink communication link (or downlink control link) (Down C-link (Comunication-link or Country-link)) and / or an uplink communication link (or uplink control link) (Up C-link). The repeater may support only some of the links shown in FIG. 5. For example, the repeater supports at least a downlink communication link as a communication link and at least one of an uplink and a downlink as a forwarding link.

[0065] 6 is a schematic diagram of an example of a communication method between a network device and a repeater according to the first embodiment of the present invention. As shown in FIG. 6, the method includes step 601 and / or step 602.

[0066] Step 601: The repeater receives first information from a network device.

[0067] Step 602: The repeater transmits second information to the network device.

[0068] Here, the repeater is identified by an identifier and / or a sequence.

[0069] In some embodiments, the method may include at least one of steps 601 and 602. Also, when the method includes steps 601 and 602, there is no limitation on the order in which steps 601 and 602 are performed. Also, steps 601 and 602 may or may not be related to each other.

[0070] In this way, by providing the repeater with a communication function, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to the network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to instructions from the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to instructions from the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0071] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0072] For example, the repeater may be identified by a specific / dedicated identifier and / or sequence.

[0073] For example, with the identifier and / or sequence, information transmitted by network device 101 may be intended for first repeater 103-1, as shown in Figure 3. First repeater 103-1 may receive and determine all or part of the information as intended for it, and / or first repeater 103-1 may determine which part of the information is intended for it. Second repeater 103-2 may not receive the information, or may receive the information and determine that the information is not intended for it.

[0074] Also, for example, the identifier and / or sequence may cause the first repeater 103-1 to transmit information to the network device 101, which may receive the information and determine that the information is from the first repeater 103-1.

[0075] In some embodiments, the identifier and / or sequence for identifying the repeater includes one or more identifiers and / or sequences.

[0076] In some embodiments, the identifier and / or the sequence may include at least one of a pre-configured identifier and / or sequence, a pre-defined identifier and / or sequence, and an identifier and / or sequence configured via signaling. In other words, the identifier and / or the sequence, or a portion thereof, may be at least one of pre-configured, pre-defined, and configured via signaling (which may be referred to as "directed").

[0077] For example, preconfigured identifiers and / or sequences may also be referred to as preset identifiers and / or sequences.

[0078] In some embodiments, the identifier and / or the sequence may include at least one of the following identifiers and / or sequences:

[0079] A unique identifier and / or sequence under the network device (or within the cell), i.e., the identifier and / or sequence is used to uniquely identify a repeater under the network device, e.g., different numbers identify different repeaters under the network device.

[0080] A unique identifier and / or sequence within a network, i.e., the identifier and / or sequence is used to uniquely identify the repeater within a network, for example the network being an access network or a core network.

[0081] A pre-configured identifier and / or sequence, for example, a factory-configured identifier and / or sequence, for example, a global identifier.

[0082] In some embodiments, the identifier includes a network device identifier and / or a terminal device identifier.

[0083] For example, the identifier may include a Cell Global Identity (CGI) and / or a Cell-RadioNetworkTemporaryIdentifier (C-RNTI), etc.

[0084] The identifier and / or the sequence is for at least one of a physical layer (PHY layer), a MAC layer, and an RRC layer.

[0085] In some embodiments, the identifier and / or the sequence, in whole or in part, is used to support functionality of at least one of a physical layer, a MAC layer, and an RRC layer.

[0086] In other words, the fact that the identifier and / or the sequence is for a certain layer means that the identifier and / or the sequence is used to support the function of the layer. For example, it is necessary to use all or part of the identifier in the processing of the layer, for example, determining part of the identifier according to binary numbers, hexadecimal numbers, etc., for example, using the least significant two bits of the binary number of the C-RNTI.

[0087] For example, the identifier and / or the sequence being for the physical layer means that the identifier and / or the sequence is used to support a physical layer function, e.g., the identifier and / or the sequence is used for scrambling information.

[0088] For example, the identifier and / or the sequence being for the MAC layer means that the identifier and / or the sequence is used to support MAC layer functionality, e.g., the identifier and / or the sequence is included in a MAC CE.

[0089] In some embodiments, the identifier and / or the sequence may be obtained from a network device by the repeater or provided to the network device by the repeater.

[0090] The following describes these two situations in detail.

[0091] First, we will discuss the situation where a repeater obtains an identifier and / or sequence from a network device.

[0092] 7 is a schematic diagram of an example of a method for a repeater to acquire an identifier and / or a sequence according to the first embodiment of the present invention. As shown in FIG. 7, the method includes the following steps:

[0093] Step 701: The repeater sends first request information to the network device.

[0094] Step 702: The repeater receives a first identifier and / or a first sequence from the network device.

[0095] Step 703: The repeater sends first confirmation information to the network device.

[0096] 8 is a schematic diagram of an example of information interaction in a method for a repeater to obtain an identifier and / or sequence according to the first embodiment of the present invention. As shown in FIG. 8, the method includes the following steps:

[0097] Step 801: The repeater sends first request information to the network device.

[0098] Step 802: The network device transmits a first identifier and / or a first sequence to the repeater.

[0099] Step 803: The repeater sends first confirmation information to the network device.

[0100] In some embodiments, the first identifier and / or the first sequence is used to identify the repeater.

[0101] In some embodiments, steps 703 and 803 are optional steps.

[0102] In some embodiments, the first request information is a preamble or Msg A.

[0103] In some embodiments, the first identifier and / or the first sequence is Msg.2 or RAR or MsgB.

[0104] In some embodiments, the first confirmation information is an ACK or a NACK.

[0105] 9 is a schematic diagram of another example of a method for a repeater to acquire an identifier and / or a sequence according to the first embodiment of the present invention. As shown in FIG. 9, the method includes the following steps:

[0106] Step 901: The repeater sends first trigger information to the network device.

[0107] Step 902: The repeater receives second request information from the network device.

[0108] Step 903: The repeater transmits a second identifier and / or a second sequence to the network device.

[0109] Step 904: The repeater receives a third identifier and / or a third sequence from the network device.

[0110] Step 905: The repeater sends first confirmation information to the network device.

[0111] 10 is a schematic diagram of information interaction of another method for a repeater to obtain an identifier and / or sequence according to the first embodiment of the present invention. As shown in FIG. 10, the method includes the following steps:

[0112] Step 1001: The repeater sends first trigger information to the network device.

[0113] Step 1002: The network device sends second request information to the repeater.

[0114] Step 1003: The repeater transmits a second identifier and / or a second sequence to the network device.

[0115] Step 1004: The network device transmits a third identifier and / or a third sequence to the repeater.

[0116] Step 1005: The repeater sends first confirmation information to the network device.

[0117] In some embodiments, steps 905 and 1005 are optional steps.

[0118] In some embodiments, the first trigger information is a preamble or Msg A.

[0119] In some embodiments, the second request information is Msg.2, RAR, or MsgB. For example, the second request information includes uplink resource allocation information and a preamble ID.

[0120] In some embodiments, the second identifier and / or second sequence transmitted by the repeater to the network device is part of the repeater's own identifier, for example a factory ID or a global ID.

[0121] In some embodiments, the third identifier and / or the third sequence transmitted by the network device to the repeater is different from the second identifier and / or the second sequence, and may also transmit the second identifier and / or the second sequence together with the third identifier and / or the third sequence, allowing the repeater to determine that the third identifier and / or the third sequence was transmitted to it.

[0122] In some embodiments, a second identifier and / or a second sequence and / or a third identifier and / or a third sequence are used to identify the repeater.

[0123] In some embodiments, the first confirmation information is an ACK or a NACK.

[0124] 11 is a schematic diagram of another example of a method for a repeater to acquire an identifier and / or a sequence according to the first embodiment of the present invention. As shown in FIG. 11, the method includes the following steps:

[0125] Step 1101: The repeater transmits a fourth identifier and / or a fourth sequence to a network device.

[0126] Step 1102: The repeater receives a fifth identifier and / or a fifth sequence from the network device.

[0127] Step 1103: The repeater sends a first confirmation to the network device.

[0128] 12 is a schematic diagram of information interaction of another method for a repeater to obtain an identifier and / or sequence according to the first embodiment of the present invention. As shown in FIG. 12, the method includes the following steps:

[0129] Step 1201: The repeater transmits a fourth identifier and / or a fourth sequence to a network device.

[0130] Step 1202: The network device sends a fifth identifier and / or a fifth sequence to the repeater.

[0131] Step 1203: The repeater sends first confirmation information to the network device.

[0132] In some embodiments, steps 1103 and 1203 are optional steps.

[0133] In some embodiments, the fourth identifier and / or the fourth sequence is a preamble or Msg A.

[0134] In some embodiments, the fourth identifier and / or the fourth sequence is carried by the PUSCH in a preamble or Msg A.

[0135] In some embodiments, the fourth identifier and / or the fourth sequence transmitted by the repeater to the network device is, for example, part of the repeater's own identifier, for example, a factory ID or a global ID.

[0136] In some embodiments, the fifth identifier and / or the fifth sequence is Msg.2 or RAR or MsgB.

[0137] In some embodiments, the fifth identifier and / or the fifth sequence transmitted by the network device to the repeater is different from the fourth identifier and / or the fourth sequence, and may also transmit the fourth identifier and / or the fourth sequence together with the fifth identifier and / or the fifth sequence, allowing the repeater to determine that the fifth identifier and / or the fifth sequence was transmitted to it.

[0138] In some embodiments, a fourth identifier and / or a fourth sequence and / or a fifth identifier and / or a fifth sequence are used to identify the repeater.

[0139] In some embodiments, the first confirmation information is an ACK or a NACK.

[0140] The above describes the situation in which a repeater obtains an identifier and / or a sequence from a network device. The following describes the situation in which a repeater provides, notifies, or reports an identifier and / or a sequence to a network device.

[0141] 13 is a schematic diagram of an example of a method for a repeater to provide an identifier and / or a sequence according to the first embodiment of the present invention. As shown in FIG. 13, the method includes the following steps:

[0142] Step 1301: The repeater sends a sixth identifier and / or a sixth sequence to the network device.

[0143] Step 1302: The repeater receives second confirmation information from the network device.

[0144] 14 is a schematic diagram of information interaction in a method for a repeater to provide an identifier and / or sequence according to the first embodiment of the present invention. As shown in FIG. 14, the method includes the following steps:

[0145] Step 1401: The repeater transmits a sixth identifier and / or a sixth sequence to the network device.

[0146] Step 1402: The network device sends second confirmation information to the repeater.

[0147] In some embodiments, steps 1302 and 1402 are optional steps.

[0148] In some embodiments, the sixth identifier and / or the sixth sequence is a preamble or Msg A.

[0149] In some embodiments, the sixth identifier and / or the sixth sequence is carried by the PUSCH in a preamble or Msg A.

[0150] In some embodiments, a sixth identifier and / or a sixth sequence is used to identify the repeater.

[0151] In some embodiments, the second confirmation information is Msg.2 or RAR or MsgB.

[0152] 15 is a schematic diagram of another example of a method for a repeater to provide an identifier and / or a sequence according to the first embodiment of the present invention. As shown in FIG. 15, the method includes the following steps:

[0153] Step 1501: The repeater sends second trigger information to the network device.

[0154] Step 1502: The repeater receives third request information from the network device.

[0155] Step 1503: The repeater transmits a seventh identifier and / or a seventh sequence to the network device.

[0156] Step 1504: The repeater receives second confirmation information from the network device.

[0157] 16 is a schematic diagram of information interaction of another method for a repeater to provide an identifier and / or sequence according to the first embodiment of the present invention. As shown in FIG. 16, the method includes the following steps:

[0158] Step 1601: The repeater sends second trigger information to the network device.

[0159] Step 1602: The network device sends third request information to the repeater.

[0160] Step 1603: The repeater transmits a seventh identifier and / or a seventh sequence to the network device.

[0161] Step 1604: The network device sends second confirmation information to the repeater.

[0162] In some embodiments, steps 1504 and 1604 are optional steps.

[0163] In some embodiments, the second trigger information is a preamble or Msg A.

[0164] In some embodiments, the seventh identifier and / or the seventh sequence is a sequence or a physical channel.

[0165] In some embodiments, the second confirmation information is an ACK or a NACK.

[0166] In some embodiments, in the relevant steps of Figures 7 to 16, the content included in the PUSCH or RAR or Msg B of Msg A is defined for the repeater or reuses the content defined for the terminal device.

[0167] In other words, the content included in the PUSCH or RAR or Msg B of MsgA is different from or the same as the content defined for the terminal device.

[0168] In some embodiments, if the content contained in the PUSCH or RAR or Msg B of Msg A reuses the content defined for the terminal device, the repeater reads part of the information field of the information received by the repeater and ignores other information fields, and fills part of the information field with default bits (e.g., 0) and fills other information fields as necessary for information transmitted by the repeater.

[0169] In step 601, the repeater receives first information from a network device, and in step 602, the repeater transmits second information to the network device.

[0170] In some embodiments, the first information is referred to as downlink information and the second information is referred to as uplink information.

[0171] In some embodiments, the first information is generated based on a repeater identifier and / or sequence, and / or the first information is scrambled based on a repeater identifier and / or sequence.

[0172] For example, the network device generates the first information based on the identifier and / or sequence of the repeater, and / or the network device scrambles the first information based on the identifier and / or sequence of the repeater.

[0173] In some embodiments, the first information is received based on the repeater's identifier and / or sequence (e.g., including at least one of detecting, demodulating, descrambling, decoding, and decrypting the sequence, etc.).

[0174] For example, the repeater receives first information based on the repeater's identifier and / or sequence (eg, including at least one of detecting, demodulating, descrambling, decoding, and decrypting the sequence, etc.).

[0175] In some embodiments, the second information is generated based on the repeater's identifier and / or sequence, and / or the second information is scrambled based on the repeater's identifier and / or sequence.

[0176] For example, the repeater generates the second information based on the repeater's identifier and / or sequence, and / or the network device scrambles the second information based on the repeater's identifier and / or sequence.

[0177] In some embodiments, the second information is transmitted based on a repeater identifier and / or sequence.

[0178] For example, the repeater transmits second information based on the repeater's identifier and / or sequence (e.g., including at least one of generating information, generating a sequence, scrambling, encoding, modulating, mapping to time-frequency resources, etc.).

[0179] 17 is a schematic diagram of another example of a communication method between a network device and a repeater according to the first embodiment of the present invention. As shown in FIG. 17, the method includes step 1701 and / or step 1702.

[0180] Step 1701: The repeater receives first information from a network device in response to, or based on, or using, or by the eighth identifier and / or eighth sequence.

[0181] Step 1702: The repeater transmits second information to the network device in response to, or based on, or using, or by the 9th identifier and / or 9th sequence, the 9th identifier and / or the 9th sequence.

[0182] Here, the repeater is represented by an identifier and / or a sequence, and the identifier and / or sequence includes an eighth identifier and / or an eighth sequence and / or a ninth identifier and / or a ninth sequence.

[0183] In some embodiments, the method may include at least one of step 1701 and step 1702. Also, when the method includes step 1701 and step 1702, there is no restriction on the order in which step 1701 and step 1702 are performed. Also, step 1701 and step 1702 may or may not be related to each other.

[0184] In some embodiments, the eighth identifier and / or the eighth sequence and the ninth identifier and / or the ninth sequence may be the same or different.

[0185] In different situations, for example, the manner in which the eighth identifier and / or the eighth sequence are obtained may be different from the manner in which the ninth identifier and / or the ninth sequence are obtained, i.e., may be pre-configured, pre-defined, configured or indicated via signaling, or may be obtained in different ways.

[0186] Also, for example, the signaling indicating the eighth identifier and / or the eighth sequence is different from the signaling indicating the ninth identifier and / or the ninth sequence.

[0187] Also, for example, the eighth identifier and / or the value of the eighth sequence is different from the ninth identifier and / or the value of the ninth sequence.

[0188] The following specifically describes the use of identifiers and / or sequences to identify repeaters.

[0189] In some embodiments, the identifier and / or sequence is used for at least one of the following processes: (1) Scrambling of the first information and / or the second information carried by the physical channel. In some embodiments, the scrambling includes scrambling CRC bits and / or scrambling channel coded bits. In some embodiments, the first information and / or the second information is at least one of control information, response information, measurement report information, trigger information, request information and confirmation information.

[0190] In some embodiments, the response information is a response information of the control information.

[0191] In some embodiments, the control information is uplink control information and / or downlink control information, and the response information is downlink response information.

[0192] (2) Generation and / or scrambling of reference signals for physical channels In some embodiments, the physical channel includes an uplink physical channel and / or a downlink physical channel.

[0193] In some embodiments, the reference signal may be, for example, a Demodulation Reference Signal (DMRS).

[0194] In some embodiments, for example, the reference signal sequence of the physical channel is generated and / or scrambled based on a cell identifier (cell ID) and a repeater identifier and / or sequence, e.g., generated and / or scrambled based on the cell ID and repeater ID.

[0195] Alternatively, the reference signal sequence of the physical channel may be generated based on a cell identifier and scrambled based on a repeater identifier and / or sequence, e.g., generated based on a cell ID and scrambled based on a repeater ID.

[0196] Alternatively, the reference signal sequence of the physical channel may be generated based on the repeater identifier and / or sequence and scrambled based on the cell identifier, e.g., generated based on the repeater ID and scrambled based on the cell ID. (3) generating and / or scrambling sequences that carry information; In some embodiments, the sequence carrying the information is generated and / or scrambled based on the repeater's identifier and / or sequence and the beam identifier (beam ID) of the repeater's terminal device side or fronthaul link.

[0197] For example, the sequence carrying the information is generated and / or scrambled based on the repeater ID and the ID or index of the beam on the terminal device side or fronthaul link of the repeater.

[0198] In some embodiments, the sequence carrying the information is generated and / or scrambled based on a cell identifier, a repeater identifier and / or sequence, and a beam identifier (beam ID) on the terminal device side or fronthaul link of the repeater.

[0199] For example, the sequence carrying the information is generated and / or scrambled based on a cell ID, a repeater ID, and an ID or index of the beam on the terminal device side or fronthaul link of the repeater.

[0200] In some embodiments, the beams on the terminal side of the repeater include receive beams and / or transmit beams, where the transmit beams are used to transmit signals to the terminal and the receive beams are used to receive signals transmitted by the terminal.

[0201] For example, if a repeater has only a downlink transport link, the beam on the terminal device side of the repeater needs to include only a transmitting beam, and if the repeater has only an uplink transport link, the beam on the terminal device side of the repeater needs to include only a receiving beam.

[0202] In some embodiments, the transmit beam and the receive beam have a one-to-one correspondence. In some embodiments, the ID or index of the beam on the terminal device side of the repeater is an SSB index, a CSI-RS ID, or a number unique to the repeater.

[0203] In some embodiments, a sequence is generated and / or scrambled based on the SSB index, CSI-RS ID and other number specific for the repeater to indicate the repeater's terminal device side beam.

[0204] In some embodiments, for SSB index and CSI-RS ID, one SSB index or CSI-RS ID is used to indicate one transmit beam and / or one receive beam.

[0205] In some embodiments, for example, the repeater-specific number is a number from 0 to 3 on the terminal side of the repeater (assuming a total of four beams). If the beam on the terminal side of the repeater includes a receiving beam and a transmitting beam, the receiving beam and the transmitting beam are numbered separately or together.

[0206] Assume there are four receive beams and four transmit beams.

[0207] For example, the receive beams and the transmit beams may be numbered, for example, 0 to 3, respectively.

[0208] Also, for example, the receive beams and transmit beams may be numbered together, for example, by numbering each of these beams from 0 to 7, or the same number may be used for pairs of transmit beams and receive beams, i.e., four pairs of transmit beams and receive beams may be numbered from 0 to 3.

[0209] (4) generating and / or scrambling a preamble sequence for the first information and / or the second information, and / or generating and / or scrambling a preamble sequence for a channel or sequence for carrying the first information and / or the second information; In some embodiments, the preamble sequence is used to indicate the repeater to which the first information and / or the second information is intended.

[0210] In some embodiments, the preamble sequence is a DMRS sequence of a physical channel, in other words, the preamble sequence does not exclude the DMRS sequence of a physical channel. (5) The first information and / or the second information indicate a repeater that is the target of the first information and / or the second information, or the first information and / or the second information indicate a specific repeater that is the target of a part of the information in the first information and / or the second information. In some embodiments, assuming that multiple repeaters under the network device can all receive, decode, or interpret the first information, the first information indicates which repeater the information is intended for, or which part of the information is intended for which repeater.

[0211] In some embodiments, the first information and / or the second information is at least one of control information, response information, measurement report information, trigger information, request information, and confirmation information.

[0212] In some embodiments, the control information and / or response information includes a repeater identifier and / or sequence.

[0213] In some embodiments, the control information is RRC control signaling or MAC CE or DCI.

[0214] In some embodiments, the first information and / or the second information, e.g., control information, is repeater specific, or group common, or cell specific, or network device specific.

[0215] For example, something common to repeaters means something that is common to one or more repeaters in a cell, and may be something that is common to some or all of the repeaters in a cell.

[0216] In some embodiments, repeater specific means, for example, that only one repeater within a network or under the same network can receive or decode or decrypt the information.

[0217] In some embodiments, a group common to repeaters means that, for example, multiple repeaters within a network or under the same network may all receive or decode or decrypt information, but does not exclude only one.

[0218] In some embodiments, the identifiers and / or sequences used in the different processes (1) to (5) above are different identifiers and / or sequences, or different parts of one identifier and / or sequence.

[0219] In some embodiments, the cell identifier is part of the repeater identifier and / or sequence, or the cell identifier is not part of the repeater identifier and / or sequence.

[0220] The following describes carrying control information over a physical channel as an example.

[0221] Fig. 18 is a schematic diagram of an example of a process for carrying control information over a physical channel according to embodiment 1 of the present invention. As shown in Fig. 18, the input is a control information payload, which may or may not include a repeater ID A. A CRC is first attached to the control information payload (CRC attachment), where the CRC is scrambled using a cell ID and / or a repeater ID B. Next, channel coding is performed. Next, rate matching is performed. Next, scrambling is performed based on a cell ID and / or a repeater ID C. Finally, modulation and mapping to physical resources are performed.

[0222] According to this embodiment, by providing the repeater with a communication function, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to a network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to instructions from the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to instructions from the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0223] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0224] <Example 2> An embodiment of the present invention provides a communication method between a network device and a repeater, which is applied to the network device side. This method corresponds to the communication method between the network device and the repeater side in the first embodiment, and the overlapping description of the similar contents will be omitted.

[0225] 19 is a schematic diagram of an example of a communication method between a network device and a repeater according to the second embodiment of the present invention. As shown in FIG. 19, the method includes step 1901 and / or step 1902.

[0226] Step 1901: The network device sends first information to the repeater.

[0227] Step 1902: The network device receives second information from the repeater.

[0228] Here, the repeater is identified by an identifier and / or a sequence.

[0229] In some embodiments, the method may include at least one of steps 1901 and 1902. Also, when the method includes steps 1901 and 1902, there is no limitation on the order in which steps 1901 and 1902 are performed. Also, steps 1901 and 1902 may or may not be related to each other.

[0230] In some embodiments, the identifier and / or sequence includes one or more identifiers and / or sequences.

[0231] In some embodiments, the identifier and / or the sequence include at least one of a pre-configured identifier and / or sequence, a pre-defined identifier and / or sequence, and an identifier and / or sequence configured via signaling.

[0232] In some embodiments, the identifier and / or the sequence include at least one of a unique identifier and / or sequence under the network device, a unique identifier and / or sequence within the network, and a pre-configured identifier and / or sequence.

[0233] In some embodiments, the identifier includes a network device identifier and / or a terminal device identifier.

[0234] In some embodiments, the identifier and / or sequence is for at least one of a physical layer, a MAC layer, and an RRC layer.

[0235] In some embodiments, the identifier and / or sequence is used in whole or in part to support functionality of at least one of the physical layer, the MAC layer, and the RRC layer.

[0236] In some embodiments, the identifier and / or sequence may be provided to the repeater by a network device or obtained from the repeater by the network device.

[0237] 20 is a schematic diagram of an example of a method for a network device according to a second embodiment of the present invention to provide an identifier and / or a sequence to a repeater. As shown in FIG. 20, the method includes the following steps:

[0238] Step 2001: The network device receives first request information from the repeater.

[0239] Step 2002: The network device transmits a first identifier and / or a first sequence to the repeater.

[0240] Step 2003: The network device receives first confirmation information from the repeater.

[0241] In some embodiments, step 2003 is an optional step.

[0242] For details of the above steps, you may refer to the contents of FIGS. 7 and 8 in the first embodiment, and the description thereof will be omitted here.

[0243] 21 is a schematic diagram of another example of a method for a network device to provide an identifier and / or sequence to a repeater according to embodiment 2 of the present invention. As shown in FIG. 21, the method includes the following steps:

[0244] Step 2101: The network device receives first trigger information from the repeater.

[0245] Step 2102: The network device sends second request information to the repeater.

[0246] Step 2103: The network device receives a second identifier and / or a second sequence from the repeater.

[0247] Step 2104: The network device transmits a third identifier and / or a third sequence to the repeater.

[0248] Step 2105: The network device receives first confirmation information from the repeater.

[0249] In some embodiments, step 2105 is an optional step.

[0250] For details of the above steps, you may refer to the contents of FIGS. 9 and 10 in the first embodiment, and the description thereof will be omitted here.

[0251] 22 is a schematic diagram of another example of a method for a network device to provide an identifier and / or sequence to a repeater according to embodiment 2 of the present invention. As shown in FIG. 22, the method includes the following steps:

[0252] Step 2201: The network device receives a fourth identifier and / or a fourth sequence from the repeater.

[0253] Step 2202: The network device transmits a fifth identifier and / or a fifth sequence to the repeater.

[0254] Step 2203: The network device receives first confirmation information from the repeater.

[0255] In some embodiments, step 2203 is an optional step.

[0256] For details of the above steps, the contents of FIGS. 11 and 12 in the first embodiment may be referred to, and the description thereof will be omitted here.

[0257] 23 is a schematic diagram of an example of a method for a network device according to a second embodiment of the present invention to acquire an identifier and / or a sequence from a repeater. As shown in FIG. 23, the method includes the following steps:

[0258] Step 2301: The network device receives a sixth identifier and / or a sixth sequence from the repeater.

[0259] Step 2302: The network device sends second confirmation information to the repeater.

[0260] In some embodiments, step 2302 is an optional step.

[0261] For details of the above steps, the contents of FIGS. 13 and 14 in the first embodiment may be referred to, and the description thereof will be omitted here.

[0262] 24 is a schematic diagram of another example of a method for a network device to acquire an identifier and / or a sequence from a repeater according to embodiment 2 of the present invention. As shown in FIG. 24, the method includes the following steps:

[0263] Step 2401: The network device receives second trigger information from the repeater.

[0264] Step 2402: The network device sends third request information to the repeater.

[0265] Step 2403: The network device receives a seventh identifier and / or a seventh sequence from the repeater.

[0266] Step 2404: The network device sends second confirmation information to the repeater.

[0267] In some embodiments, step 2404 is an optional step.

[0268] For details of the above steps, the contents of FIGS. 15 and 16 in the first embodiment may be referred to, and the description thereof will be omitted here.

[0269] In some embodiments, at least one of the first request information, the first trigger information, the fourth identifier and / or the fourth sequence, the sixth identifier and / or the sixth sequence, and the second trigger information is a preamble or Msg A.

[0270] In some embodiments, at least one of the fourth identifier and / or fourth sequence and the sixth identifier and / or sixth sequence is carried by the PUSCH in a preamble or Msg A.

[0271] In some embodiments, at least one of the first identifier and / or first sequence, the second request information, the fifth identifier and / or fifth sequence, and the second confirmation information is Msg.2 or RAR or MsgB.

[0272] In some embodiments, at least one of the first confirmation and the second confirmation is an ACK or a NACK.

[0273] In some embodiments, the third identifier and / or the third sequence is Msg.4.

[0274] In some embodiments, the content contained in the PUSCH or RAR or Msg B of MsgA is defined for the repeater or reuses content defined for the terminal device.

[0275] In some embodiments, when reusing content defined for a terminal device, the repeater reads part of the information field of information received by the repeater and ignores other information fields, and fills part of the information field with default bits and fills other information fields as needed for information transmitted by the repeater.

[0276] In some embodiments, the first information is generated by the network device based on the repeater identifier and / or sequence, and / or the first information is scrambled based on the repeater identifier and / or the sequence, and / or the first information is received based on the repeater identifier and / or the sequence.

[0277] In some embodiments, the second information is generated based on the repeater identifier and / or sequence, and / or the second information is scrambled based on the repeater identifier and / or sequence, and the second information is transmitted based on the repeater identifier and / or sequence.

[0278] In some embodiments, the identifier and / or sequence may be: scrambling the first information and / or the second information carried by the physical channel; Generation and / or scrambling of reference signals for physical channels; Generation and / or scrambling of information carrying sequences; generating and / or scrambling a preamble sequence for the first information and / or the second information; generating and / or scrambling a preamble sequence for a channel or sequence for carrying the first information and / or the second information; and Used for at least one of the following processes: indicating in the first information and / or second information the repeater that the first information and / or second information is intended for; or indicating in the first information and / or second information the specific repeater that part of the information in the first information and / or second information is intended for.

[0279] In some embodiments, scrambling the first information and / or the second information carried by the physical channel comprises scrambling with respect to CRC bits and / or scrambling of channel coded bits.

[0280] In some embodiments, generating and / or scrambling the physical channel reference signal includes generating and / or scrambling the physical channel reference signal based on a cell identifier (cell ID) and a repeater identifier and / or sequence, or generating the physical channel reference signal based on the cell identifier and scrambling the physical channel reference signal based on the repeater identifier and / or sequence, or generating the physical channel reference signal based on the repeater identifier and / or sequence and scrambling the physical channel reference signal based on the cell identifier.

[0281] In some embodiments, generating and / or scrambling the information-carrying sequence includes generating and / or scrambling the information-carrying sequence based on the repeater's identifier and / or sequence and the repeater's terminal device-side beam identifier (beam ID).

[0282] In some embodiments, generating and / or scrambling the sequence carrying the information includes generating and / or scrambling the sequence carrying the information based on a cell identifier, a repeater identifier and / or sequence, and a repeater terminal device side beam identifier (beam ID).

[0283] In some embodiments, the preamble sequence is used to indicate the repeater to which the first information and / or the second information is intended.

[0284] In some embodiments, the preamble sequence is a DMRS sequence of a physical channel.

[0285] In some embodiments, the first information and / or the second information is at least one of control information, response information, measurement report information, trigger information, request information, and confirmation information.

[0286] In some embodiments, the control information and / or response information includes a repeater identifier and / or sequence.

[0287] In some embodiments, the control information is RRC control signaling or MAC CE or DCI.

[0288] In some embodiments, the first information and / or the second information is repeater specific, or group common, or cell specific, or network device specific.

[0289] In some embodiments, the identifiers and / or sequences used in the different processes are different identifiers and / or sequences, or different portions of one identifier and / or sequence.

[0290] In some embodiments, the cell identifier is part of the repeater identifier and / or sequence, or the cell identifier is not part of the repeater identifier and / or sequence.

[0291] For the specific implementation of the above method and the specific contents regarding the identifier and / or sequence, please refer to the description in the first embodiment, and the detailed description will be omitted here.

[0292] According to this embodiment, by providing the repeater with a communication function, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to a network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to instructions from the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to instructions from the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0293] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0294] Example 3 An embodiment of the present invention provides a communication device between a network device and a repeater, the device being located in the repeater. The solution principle of the device is the same as that of the method of the first embodiment, so that the specific implementation of the device may refer to the implementation of the method of the first embodiment, and the overlapping description of the similar content will be omitted.

[0295] 25 is a schematic diagram of an example of a communication device between a network device and a repeater according to a third embodiment of the present invention. As shown in FIG. 25, a communication device 2500 between a network device and a repeater includes a first receiving unit 2501 and / or a first transmitting unit 2502.

[0296] The first receiving unit 2501 receives first information from a network device.

[0297] The first transmitting unit 2502 transmits the second information to the network device.

[0298] Here, the repeater is identified by an identifier and / or a sequence.

[0299] In some embodiments, the communication device 2500 between a network device and a repeater further includes a first obtaining unit 2503 and / or a first providing unit 2504 .

[0300] The first acquiring unit 2503 acquires the identifier and / or the sequence from the network device.

[0301] The first providing unit 2504 provides the identifier and / or the sequence to the network device.

[0302] The functions and specific contents of the above-mentioned parts may be referred to in the descriptions of the relevant steps in the first embodiment, and the description thereof will be omitted here.

[0303] According to this embodiment, by providing the repeater with a communication function, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to a network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to instructions from the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to instructions from the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0304] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0305] Example 4 An embodiment of the present invention provides a communication device between a network device and a repeater, the device being disposed in the network device. The solution principle of the device is the same as that of the method of the second embodiment, so that the specific implementation of the device may refer to the implementation of the method of the second embodiment, and the overlapping description of the similar content will be omitted.

[0306] 26 is a schematic diagram of an example of a communication device between a network device and a repeater according to a fourth embodiment of the present invention. As shown in FIG. 26, a communication device 2600 between a network device and a repeater includes a second transmitting unit 2601 and / or a second receiving unit 2602.

[0307] The second transmitting unit 2601 transmits the first information to the repeater.

[0308] The second receiving unit 2602 receives the second information from the repeater.

[0309] Here, the repeater is identified by an identifier and / or a sequence.

[0310] In some embodiments, the communication device 2600 between the network device and the repeater further includes a second providing unit 2603 and / or a second obtaining unit 2604.

[0311] The second providing unit 2603 provides the identifier and / or the sequence to the repeater.

[0312] A second acquisition unit 2604 acquires the identifier and / or the sequence from the repeater.

[0313] The functions and specific contents of the above-mentioned parts may be referred to in the description of the related steps in the second embodiment, and the description thereof will be omitted here.

[0314] According to this embodiment, by providing the repeater with a communication function, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to a network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to instructions from the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to instructions from the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0315] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0316] <Example 5> An embodiment of the present invention provides a repeater, which includes a communication device between the network device and the repeater described in the third embodiment.

[0317] Fig. 27 is a schematic block diagram of an example of a system configuration of a repeater according to a fifth embodiment of the present invention. As shown in Fig. 27, a repeater 2700 may include a processor 2710 and a memory 2720, and the memory 2720 is connected to the processor 2710. The memory 2720 may store various data and further stores an information processing program 2730, which is executed under the control of the processor 2710. Note that this diagram is merely an example, and other types of structures may be used to supplement or replace this structure to realize communication functions or other functions.

[0318] In one aspect, the functionality of the communication device between the network device and the repeater may be integrated into the processor 2710. Here, the processor 2710 may be configured to perform a step of the repeater receiving first information from the network device and / or a step of the repeater transmitting second information to the network device, where the repeater is identified by an identifier and / or a sequence.

[0319] In another aspect, the communication device between the network device and the repeater may be configured separately from the processor 2710. For example, the communication device between the network device and the repeater may be configured as a chip connected to the processor 2710, and the functions of the communication device between the network device and the repeater are realized under the control of the processor 2710.

[0320] 27, repeater 2700 may further include a network-side transceiver 2740-1 and a network-side antenna 2750-1, a terminal-side transceiver 2740-2 and a terminal-side antenna 2750-2, and a signal amplifier circuit 2760. The functions of the above-mentioned components are the same as those of the prior art, and therefore, a description thereof will be omitted here. Repeater 2700 does not need to include all of the units shown in FIG. 27. Repeater 2700 may further include units not shown in FIG. 27, and prior art may be referenced.

[0321] 27, the processor 2710 may be referred to as a controller or an operation control device, and may include a microprocessor or other processor and / or logic device. The processor 2710 receives inputs and controls the operation of each part of the repeater 2700.

[0322] Here, the memory 2720 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices. It may store various data and may also store programs that execute information. To achieve information storage or processing, the processor 2710 may execute programs stored in the memory 2720. The functions of the other components are similar to those of conventional components, and therefore, description thereof will be omitted here.

[0323] The components of the repeater 2700 may be implemented in dedicated hardware, firmware, software, or a combination thereof without departing from the scope of the present invention.

[0324] According to this embodiment, by providing the repeater with a communication function, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to a network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to instructions from the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to instructions from the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0325] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0326] Example 6 An embodiment of the present invention provides a network device, which includes a communication device between the network device and a repeater described in the fourth embodiment.

[0327] 28 is a schematic block diagram of an example of a system configuration of a network device according to a sixth embodiment of the present invention. As shown in FIG. 28, the network device 2800 may include a processor 2810 and a memory 2820, and the memory 2820 is connected to the processor 2810. The memory 2820 may store various data. The memory 2820 may further store an information processing program 2830 to receive various information transmitted by a repeater and transmit various information to the repeater, and executes the program 2830 under the control of the processor 2810.

[0328] In one aspect, the functionality of the communication between the network device and the repeater may be integrated into the processor 2810. Here, the processor 2810 may be configured to perform a step of the network device transmitting first information to the repeater and / or a step of the network device receiving second information from the repeater, where the repeater is identified by an identifier and / or a sequence.

[0329] 28, the network device 2800 may further include a transceiver 2840 and an antenna 2850. The functions of the above components are similar to those of the prior art, and the description thereof will be omitted here. The network device 2800 does not need to include all the units shown in FIG. 28. The network device 2800 may further include units not shown in FIG. 28, and prior art may be referred to.

[0330] According to this embodiment, by providing the repeater with a communication function, the repeater can support receiving information transmitted by a network device (e.g., including at least one of sequence detection, demodulation, descrambling, decoding, and decryption) and / or transmitting information to a network device (e.g., including at least one of information generation, sequence generation, scrambling, encoding, modulation, and mapping to time-frequency resources). Therefore, the repeater can support adjusting the beam direction and / or width of the terminal side according to instructions from the network device. Meanwhile, the repeater can support periodically or semi-continuously scanning or repeating the beam of the terminal side according to instructions from the network device, thereby determining a beam that matches the terminal device and / or supporting beam correction by the terminal device. This can amplify / strengthen the target signal as much as possible while reducing interference to other devices.

[0331] Additionally, in scenarios where multiple repeaters are included within a network, or under a network device, or within a cell, identifying each repeater by an identifier and / or sequence can support transmission and / or reception of information between the network device and the repeater being repeater-specific or common to multiple repeaters.

[0332] Example 7 An embodiment of the present invention provides a communication system, which includes the repeater according to the embodiment and / or the network device according to the sixth embodiment.

[0333] For example, the configuration of the embodiment of the present invention may refer to FIGS. 1, 3, 4 and 5.

[0334] 1, a communication system 100 includes a network device 101, a terminal device 102, and a repeater 103. The repeater 103 may be the same as the repeater described in the fifth embodiment, and the network device 101 may be the same as the network device described in the sixth embodiment, and the overlapping contents will not be described again.

[0335] 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.

[0336] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, software modules executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in FIG. 25, or one or more combinations of functional block diagrams, may correspond to each software module in the flow of a computer program or each hardware module. These software modules may correspond to each step shown in FIG. 6. These hardware modules may be implemented by implementing these software modules in hardware using, for example, a field programmable gate array (FPGA).

[0337] 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.

[0338] One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagram set forth in Figure 25 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 to perform the functions described herein. One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagram set forth in Figure 25 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.

[0339] 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.

[0340] Furthermore, the following supplementary notes are disclosed regarding the embodiments including the above examples. [Note to the first group] (Appendix 1) A communication device between a network device and a repeater, a first receiving unit for receiving first information from the network device; and / or a first transmitting unit that transmits second information to the network device; The repeater is identified by an identifier and / or a sequence. (Appendix 2) 2. The apparatus of claim 1, wherein the identifier and / or the sequence includes one or more identifiers and / or sequences. (Appendix 3) The identifier and / or the sequence are: pre-configured identifiers and / or sequences; predefined identifiers and / or sequences, and 3. The apparatus of claim 1 or 2, comprising at least one of an identifier and / or a sequence configured via signaling. (Appendix 4) The identifier and / or the sequence are: A unique identifier and / or sequence under the network device; a unique identifier and / or sequence within the network, and 4. The apparatus of any of claims 1 to 3, comprising at least one of a pre-configured identifier and / or sequence. (Appendix 5) 5. The device of any one of claims 1 to 4, wherein the identifier comprises a network device identifier and / or a terminal device identifier. (Appendix 6) 6. The apparatus of any one of Supplementary Notes 1 to 5, wherein the identifier and / or the sequence is for at least one of a physical layer, a MAC layer, and an RRC layer. (Appendix 7) 7. The apparatus of claim 6, wherein the identifier and / or the sequence, in whole or in part, is used to support functionality of at least one of a physical layer, a MAC layer, and an RRC layer. (Appendix 8) 8. The device of claim 1, further comprising: a first acquisition unit configured to acquire the identifier and / or the sequence from the network device. (Appendix 9) The first acquisition unit Sending first request information to the network device; 9. The apparatus of claim 8, further comprising: receiving a first identifier and / or a first sequence from the network device. (Appendix 10) The first acquisition unit Sending first trigger information to the network device; receiving second request information from the network device; transmitting a second identifier and / or a second sequence to the network device; 9. The apparatus of claim 8, further comprising: receiving a third identifier and / or a third sequence from the network device. (Appendix 11) The first acquisition unit transmitting a fourth identifier and / or a fourth sequence to the network device; 9. The apparatus of claim 8, further comprising: receiving a fifth identifier and / or a fifth sequence from the network device. (Appendix 12) 12. The device of claim 9, wherein the first acquisition unit transmits first confirmation information to the network device. (Appendix 13) 8. The device of claim 1, further comprising: a first provider configured to provide the identifier and / or the sequence to the network device. (Appendix 14) The device of claim 13, wherein the first providing unit transmits a sixth identifier and / or a sixth sequence to the network device. (Appendix 15) The first providing unit is Sending second trigger information to the network device; receiving third request information from the network device; 14. The apparatus of claim 13, wherein the apparatus transmits a seventh identifier and / or a seventh sequence to the network device. (Appendix 16) 16. The device of claim 14, wherein the first providing unit receives second confirmation information from the network device. (Appendix 17) 16. The apparatus of any one of Supplementary Notes 9 to 11, 14 to 15, wherein at least one of the first request information, the first trigger information, the fourth identifier and / or the fourth sequence, the sixth identifier and / or the sixth sequence, and the second trigger information is a preamble or Msg A. (Appendix 18) 15. The apparatus of claim 11 or 14, wherein at least one of the fourth identifier and / or the fourth sequence, and the sixth identifier and / or the sixth sequence is carried by a PUSCH in a preamble or Msg A. (Appendix 19) The device of any of Supplementary Notes 9 to 11, 14, and 16, wherein at least one of the first identifier and / or the first sequence, the second request information, the fifth identifier and / or the fifth sequence, and the second confirmation information is Msg.2, RAR, or MsgB. (Appendix 20) 17. The apparatus of claim 12 or 16, wherein at least one of the first confirmation information and the second confirmation information is an ACK or a NACK. (Appendix 21) 11. The apparatus of claim 10, wherein the third identifier and / or the third sequence is Msg.4. (Appendix 22) An apparatus according to any one of appendices 17 to 19, wherein the content included in the PUSCH of the MsgA, the RAR, or the MsgB is defined for the repeater or reuses content defined for the terminal device. (Appendix 23) The repeater reads a portion of the information field of the first information, and / or 23. The apparatus of any one of claims 1 to 22, wherein the repeater fills a portion of the information field of the second information with default bits. (Appendix 23a) The apparatus of claim 1, wherein the first information and / or the second information are carried by a physical channel and / or sequence. (Appendix 24) the first information is generated based on the identifier and / or the sequence of the repeater; and / or the first information is scrambled based on the identifier of the repeater and / or the sequence; and / or 23. The apparatus of claim 1, wherein the first information is received based on the identifier and / or the sequence of the repeater. (Appendix 25) the second information is generated based on the identifier and / or the sequence of the repeater; and / or the second information is scrambled based on the identifier of the repeater and / or the sequence; 25. The device of claim 1, wherein the second information is transmitted based on the identifier and / or the sequence of the repeater. (Appendix 26) The identifier and / or the sequence are: scrambling the first information and / or the second information carried by a physical channel; Generation and / or scrambling of reference signals for physical channels; Generation and / or scrambling of information carrying sequences; generating and / or scrambling a preamble sequence for the first information and / or the second information; generating and / or scrambling a preamble sequence for a channel or sequence for carrying the first information and / or the second information; and An apparatus described in any of Supplementary Notes 1 to 25, used for at least one of the following processes: indicating in the first information and / or the second information the repeater that the first information and / or the second information are targeting; or indicating in the first information and / or the second information a specific repeater that part of the information in the first information and / or the second information is targeting. (Appendix 27) The scrambling of the first information and / or the second information carried by the physical channel comprises: 27. The apparatus of claim 26, including scrambling for CRC bits and / or scrambling of channel coded bits. (Appendix 28) The generation and / or scrambling of the reference signal of the physical channel generating and / or scrambling a reference signal of the physical channel based on a cell ID and the identifier and / or the sequence of the repeater, or Generating a reference signal for the physical channel based on a cell identifier and scrambling the reference signal for the physical channel based on the identifier of the repeater and / or the sequence, or 27. The apparatus of claim 26, comprising generating a reference signal for the physical channel based on the identifier and / or the sequence of the repeater, and scrambling the reference signal for the physical channel based on a cell identifier. (Appendix 29) The generation and / or scrambling of the information carrying sequence comprises: The apparatus of claim 26, including generating and / or scrambling a sequence carrying the information based on the identifier and / or the sequence of the repeater and a beam identifier (beam ID) on the terminal device side of the repeater. (Appendix 30) The generation and / or scrambling of the information carrying sequence comprises: The apparatus of claim 26 or 29, including generating and / or scrambling a sequence conveying the information based on a cell identifier, the identifier and / or the sequence of the repeater, and a beam identifier (beam ID) on the terminal device side of the repeater. (Appendix 31) 27. The apparatus of claim 26, wherein the preamble sequence is used to indicate a repeater to which the first information and / or the second information is intended. (Appendix 32) 32. The apparatus of claim 31, wherein the preamble sequence is a DMRS sequence of a physical channel. (Appendix 33) 33. The apparatus of any of Addenda 26 to 32, wherein the first information and / or the second information is at least one of control information, response information, measurement report information, trigger information, request information, and confirmation information. (Appendix 34) 34. The apparatus of claim 33, wherein the control information and / or the response information includes the identifier and / or the sequence of the repeater. (Appendix 35) The apparatus of claim 33, wherein the control information is RRC control signaling or MAC CE or DCI. (Appendix 36) 36. The device of any one of appendices 1 to 35, wherein the first information and / or the second information is repeater specific, or group common, or cell specific, or network device specific. (Appendix 37) 37. The apparatus of any of claims 26 to 36, wherein the identifiers and / or sequences used in different processes are different identifiers and / or sequences, or different parts of one identifier and / or sequence. (Appendix 38) the cell identifier is the identifier of the repeater and / or part of the sequence, or 38. The apparatus of any of claims 26 to 37, wherein a cell identifier is not part of the repeater identifier and / or the sequence. (Appendix 39) 39. A repeater comprising the device of any one of claims 1 to 38. [Note for the second group] (Appendix 1) A communication device between a network device and a repeater, a second transmitting unit for transmitting the first information to the repeater; and / or a second receiving unit that receives second information from the repeater; The repeater is identified by an identifier and / or a sequence. (Appendix 2) 2. The apparatus of claim 1, wherein the identifier and / or the sequence includes one or more identifiers and / or sequences. (Appendix 3) The identifier and / or the sequence are: pre-configured identifiers and / or sequences; predefined identifiers and / or sequences, and 3. The apparatus of claim 1 or 2, comprising at least one of an identifier and / or a sequence configured via signaling. (Appendix 4) The identifier and / or the sequence are: A unique identifier and / or sequence under the network device; a unique identifier and / or sequence within the network, and 4. The apparatus of any of claims 1 to 3, comprising at least one of a pre-configured identifier and / or sequence. (Appendix 5) 5. The device of any one of claims 1 to 4, wherein the identifier comprises a network device identifier and / or a terminal device identifier. (Appendix 6) 6. The apparatus of any one of Supplementary Notes 1 to 5, wherein the identifier and / or the sequence is for at least one of a physical layer, a MAC layer, and an RRC layer. (Appendix 7) 7. The apparatus of claim 6, wherein the identifier and / or the sequence, in whole or in part, is used to support functionality of at least one of a physical layer, a MAC layer, and an RRC layer. (Appendix 8) 8. The apparatus of claim 1, further comprising: a second providing unit that provides the identifier and / or the sequence to the repeater. (Appendix 9) The second providing unit is receiving first request information from the repeater; 9. The apparatus of claim 8, wherein the apparatus transmits a first identifier and / or a first sequence to the repeater. (Appendix 10) The second providing unit is receiving first trigger information from the repeater; Sending second request information to the repeater; receiving a second identifier and / or a second sequence from the repeater; 9. The apparatus of claim 8, wherein the repeater is configured to transmit a third identifier and / or a third sequence. (Appendix 11) The second providing unit is receiving a fourth identifier and / or a fourth sequence from the repeater; 9. The apparatus of claim 8, wherein the repeater is configured to transmit a fifth identifier and / or a fifth sequence. (Appendix 12) 12. The device of claim 9, wherein the second providing unit receives first confirmation information from the repeater. (Appendix 13) 8. The apparatus of claim 1, further comprising: a second acquisition unit that acquires the identifier and / or the sequence from the repeater. (Appendix 14) The apparatus of claim 13, wherein the second acquisition unit receives a sixth identifier and / or a sixth sequence from the repeater. (Appendix 15) The second acquisition unit receiving second trigger information from the repeater; Sending third request information to the repeater; 14. The apparatus of claim 13, further comprising: receiving a seventh identifier and / or a seventh sequence from the repeater. (Appendix 16) 16. The device described in claim 14 or 15, wherein the second acquisition unit transmits second confirmation information to the repeater. (Appendix 17) 16. The apparatus of any one of Supplementary Notes 9 to 11, 14 to 15, wherein at least one of the first request information, the first trigger information, the fourth identifier and / or the fourth sequence, the sixth identifier and / or the sixth sequence, and the second trigger information is a preamble or Msg A. (Appendix 18) 15. The apparatus of claim 11 or 14, wherein at least one of the fourth identifier and / or the fourth sequence, and the sixth identifier and / or the sixth sequence is carried by a PUSCH in a preamble or Msg A. (Appendix 19) The device of any of Supplementary Notes 9 to 11, 14, and 16, wherein at least one of the first identifier and / or the first sequence, the second request information, the fifth identifier and / or the fifth sequence, and the second confirmation information is Msg.2, RAR, or MsgB. (Appendix 20) 17. The apparatus of claim 12 or 16, wherein at least one of the first confirmation information and the second confirmation information is an ACK or a NACK. (Appendix 21) 11. The apparatus of claim 10, wherein the third identifier and / or the third sequence is Msg.4. (Appendix 22) An apparatus according to any one of appendices 17 to 19, wherein the content included in the PUSCH of the MsgA, the RAR, or the MsgB is defined for the repeater or reuses content defined for the terminal device. (Appendix 23) The repeater reads a portion of the information field of the first information, and / or 23. The apparatus of any one of claims 1 to 22, wherein the repeater fills a portion of the information field of the second information with default bits. (Appendix 23a) The apparatus of claim 1, wherein the first information and / or the second information are carried by a physical channel and / or sequence. (Appendix 24) the first information is generated by the network device based on the identifier and / or the sequence of the repeater; and / or the first information is scrambled based on the identifier of the repeater and / or the sequence; and / or 23. The apparatus of claim 1, wherein the first information is received based on the identifier and / or the sequence of the repeater. (Appendix 25) the second information is generated based on the identifier and / or the sequence of the repeater; and / or the second information is scrambled based on the identifier of the repeater and / or the sequence; 25. The device of any one of claims 1 to 24, wherein the second information is transmitted based on the identifier and / or the sequence of the repeater. (Appendix 26) The identifier and / or the sequence are: scrambling the first information and / or the second information carried by a physical channel; Generation and / or scrambling of reference signals for physical channels; Generation and / or scrambling of information carrying sequences; generating and / or scrambling a preamble sequence for the first information and / or the second information; generating and / or scrambling a preamble sequence for a channel or sequence for carrying the first information and / or the second information; and An apparatus described in any of Supplementary Notes 1 to 25, used for at least one of the following processes: indicating in the first information and / or the second information the repeater that the first information and / or the second information are targeting; or indicating in the first information and / or the second information a specific repeater that part of the information in the first information and / or the second information is targeting. (Appendix 27) The scrambling of the first information and / or the second information carried by the physical channel comprises: 27. The apparatus of claim 26, including scrambling for CRC bits and / or scrambling of channel coded bits. (Appendix 28) The generation and / or scrambling of the reference signal of the physical channel generating and / or scrambling a reference signal of the physical channel based on a cell ID and the identifier and / or the sequence of the repeater, or Generating a reference signal for the physical channel based on a cell identifier and scrambling the reference signal for the physical channel based on the identifier of the repeater and / or the sequence, or 27. The apparatus of claim 26, comprising generating a reference signal for the physical channel based on the identifier and / or the sequence of the repeater, and scrambling the reference signal for the physical channel based on a cell identifier. (Appendix 29) The generation and / or scrambling of the information carrying sequence comprises: The apparatus of claim 26, including generating and / or scrambling a sequence carrying the information based on the identifier and / or the sequence of the repeater and a beam identifier (beam ID) on the terminal device side of the repeater. (Appendix 30) The generation and / or scrambling of the information carrying sequence comprises: The apparatus of claim 26 or 29, including generating and / or scrambling a sequence conveying the information based on a cell identifier, the identifier and / or the sequence of the repeater, and a beam identifier (beam ID) on the terminal device side of the repeater. (Appendix 31) 27. The apparatus of claim 26, wherein the preamble sequence is used to indicate a repeater to which the first information and / or the second information is intended. (Appendix 32) 32. The apparatus of claim 31, wherein the preamble sequence is a DMRS sequence of a physical channel. (Appendix 33) 33. The apparatus of any of Addenda 26 to 32, wherein the first information and / or the second information is at least one of control information, response information, measurement report information, trigger information, request information, and confirmation information. (Appendix 34) 34. The apparatus of claim 33, wherein the control information and / or the response information includes the identifier and / or the sequence of the repeater. (Appendix 35) The apparatus of claim 33, wherein the control information is RRC control signaling or MAC CE or DCI. (Appendix 36) 36. The device of any one of appendices 1 to 35, wherein the first information and / or the second information is repeater specific, or group common, or cell specific, or network device specific. (Appendix 37) 37. The apparatus of any of claims 26 to 36, wherein the identifiers and / or sequences used in different processes are different identifiers and / or sequences, or different parts of one identifier and / or sequence. (Appendix 38) the cell identifier is the identifier of the repeater and / or part of the sequence, or 38. The apparatus of any of claims 26 to 37, wherein a cell identifier is not part of the repeater identifier and / or the sequence. (Appendix 39) 39. A network device comprising a device according to any one of claims 1 to 38. [Addendum to the third group] (Appendix 1) A method of communication between a network device and a repeater, comprising: receiving first information from the repeater; and / or the repeater transmitting second information to the network device; The repeater is identified by an identifier and / or a sequence. (Appendix 2) 2. The method of claim 1, wherein the identifier and / or the sequence includes one or more identifiers and / or sequences. (Appendix 3) The identifier and / or the sequence are: pre-configured identifiers and / or sequences; predefined identifiers and / or sequences, and 3. The method of claim 1 or 2, including at least one of an identifier and / or a sequence configured via signaling. (Appendix 4) The identifier and / or the sequence are: A unique identifier and / or sequence under the network device; a unique identifier and / or sequence within the network, and 4. The method of any of claims 1 to 3, including at least one of a pre-set identifier and / or sequence. (Appendix 5) 5. The method of any one of claims 1 to 4, wherein the identifier comprises a network device identifier and / or a terminal device identifier. (Appendix 6) 6. The method of any one of Supplementary Notes 1 to 5, wherein the identifier and / or the sequence is for at least one of a physical layer, a MAC layer, and an RRC layer. (Appendix 7) 7. The method of claim 6, wherein the identifier and / or the sequence, in whole or in part, is used to support at least one function of a physical layer, a MAC layer, and an RRC layer. (Appendix 8) 8. The method of any one of claims 1 to 7, further comprising the step of the repeater obtaining the identifier and / or the sequence from the network device. (Appendix 9) The step of the repeater obtaining the identifier and / or the sequence from the network device includes: the repeater sending first request information to the network device; and wherein the repeater receives a first identifier and / or a first sequence from the network device. (Appendix 10) The step of the repeater obtaining the identifier and / or the sequence from the network device includes: the repeater transmitting first trigger information to the network device; receiving second request information from the network device by the repeater; the repeater transmitting a second identifier and / or a second sequence to the network device; and wherein the repeater receives a third identifier and / or a third sequence from the network device. (Appendix 11) The step of the repeater obtaining the identifier and / or the sequence from the network device includes: the repeater transmitting a fourth identifier and / or a fourth sequence to the network device; and wherein the repeater receives a fifth identifier and / or a fifth sequence from the network device. (Appendix 12) The step of the repeater obtaining the identifier and / or the sequence from the network device includes: 12. The method of any of claims 9 to 11, further comprising the step of the repeater sending first confirmation information to the network device. (Appendix 13) 8. The method of any one of claims 1 to 7, further comprising the step of the repeater providing the identifier and / or the sequence to the network device. (Appendix 14) The step of the repeater providing the identifier and / or the sequence to the network device comprises: 14. The method of claim 13, comprising the step of the repeater transmitting a sixth identifier and / or a sixth sequence to the network device. (Appendix 15) The step of the repeater providing the identifier and / or the sequence to the network device comprises: the repeater transmitting second trigger information to the network device; receiving third request information from the network device by the repeater; and the repeater transmitting a seventh identifier and / or a seventh sequence to the network device. (Appendix 16) The step of the repeater providing the identifier and / or the sequence to the network device comprises: 16. The method of claim 14 or 15, further comprising the step of the repeater receiving second confirmation information from the network device. (Appendix 17) 16. The method of any one of Supplementary Notes 9 to 11, 14 to 15, wherein at least one of the first request information, the first trigger information, the fourth identifier and / or the fourth sequence, the sixth identifier and / or the sixth sequence, and the second trigger information is a preamble or Msg A. (Appendix 18) 15. The method of claim 11 or 14, wherein at least one of the fourth identifier and / or the fourth sequence, and the sixth identifier and / or the sixth sequence is carried by a PUSCH in a preamble or Msg A. (Appendix 19) 17. The method of any one of appendices 9 to 11, 14, and 16, wherein at least one of the first identifier and / or the first sequence, the second request information, the fifth identifier and / or the fifth sequence, and the second confirmation information is Msg.2, RAR, or MsgB. (Appendix 20) 17. The method of claim 12 or 16, wherein at least one of the first confirmation information and the second confirmation information is an ACK or a NACK. (Appendix 21) 11. The method of claim 10, wherein the third identifier and / or the third sequence is Msg.4. (Appendix 22) A method according to any one of appendices 17 to 19, wherein the content included in the PUSCH of the MsgA, the RAR, or the MsgB is defined for the repeater or reuses content defined for the terminal device. (Appendix 23) The repeater reads a portion of the information field of the first information, and / or 23. The method of any of claims 1 to 22, wherein the repeater fills a portion of the information field of the second information with default bits. (Appendix 23a) 2. The method of claim 1, wherein the first information and / or the second information are carried by a physical channel and / or sequence. (Appendix 24) the first information is generated based on the identifier and / or the sequence of the repeater; and / or the first information is scrambled based on the identifier of the repeater and / or the sequence; and / or 23. The method of claim 1, wherein the first information is received based on the identifier and / or the sequence of the repeater. (Appendix 25) the second information is generated based on the identifier and / or the sequence of the repeater; and / or the second information is scrambled based on the identifier of the repeater and / or the sequence; 25. A method according to any one of claims 1 to 24, wherein the second information is transmitted based on the identifier and / or the sequence of the repeater. (Appendix 26) The identifier and / or the sequence are: scrambling the first information and / or the second information carried by a physical channel; Generation and / or scrambling of reference signals for physical channels; Generation and / or scrambling of information carrying sequences; generating and / or scrambling a preamble sequence for the first information and / or the second information; generating and / or scrambling a preamble sequence for a channel or sequence for carrying the first information and / or the second information; and A method according to any one of appendices 1 to 25, wherein the first information and / or the second information indicates the repeater that the first information and / or the second information is targeting, or the first information and / or the second information indicates a particular repeater that part of the information in the first information and / or the second information is targeting. (Appendix 27) The scrambling of the first information and / or the second information carried by the physical channel comprises: 27. The method of claim 26, comprising scrambling for CRC bits and / or scrambling of channel coded bits. (Appendix 28) The generation and / or scrambling of the reference signal of the physical channel generating and / or scrambling a reference signal of the physical channel based on a cell ID and the identifier and / or the sequence of the repeater, or Generating a reference signal for the physical channel based on a cell identifier and scrambling the reference signal for the physical channel based on the identifier of the repeater and / or the sequence, or 27. The method of claim 26, comprising generating a reference signal for the physical channel based on the identifier and / or the sequence of the repeater, and scrambling the reference signal for the physical channel based on a cell identifier. (Appendix 29) The generation and / or scrambling of the information carrying sequence comprises: The method of claim 26, comprising generating and / or scrambling a sequence carrying the information based on the identifier and / or the sequence of the repeater and a beam identifier (beam ID) of the repeater on the terminal device side. (Appendix 30) The generation and / or scrambling of the information carrying sequence comprises: A method as described in Supplementary Note 26 or 29, comprising generating and / or scrambling a sequence conveying the information based on a cell identifier, the identifier and / or the sequence of the repeater, and a beam identifier (beam ID) on the terminal device side of the repeater. (Appendix 31) 27. The method of claim 26, wherein the preamble sequence is used to indicate the repeater to which the first information and / or the second information is intended. (Appendix 32) 32. The method of claim 31, wherein the preamble sequence is a DMRS sequence of a physical channel. (Appendix 33) 33. The method of any of Addendums 26 to 32, wherein the first information and / or the second information is at least one of control information, response information, measurement report information, trigger information, request information, and confirmation information. (Appendix 34) 34. The method of claim 33, wherein the control information and / or the response information includes the identifier and / or the sequence of the repeater. (Appendix 35) 34. The method of claim 33, wherein the control information is RRC control signaling or MAC CE or DCI. (Appendix 36) 36. A method according to any one of appendices 1 to 35, wherein the first information and / or the second information is repeater specific, or group common, or cell specific, or network device specific. (Appendix 37) 37. The method of any of claims 26 to 36, wherein the identifiers and / or sequences used in different processes are different identifiers and / or sequences, or different parts of one identifier and / or sequence. (Appendix 38) the cell identifier is the identifier of the repeater and / or part of the sequence, or 38. The method of any of claims 26 to 37, wherein a cell identifier is not part of the identifier of the repeater and / or the sequence. [Addendum to the fourth group] (Appendix 1) A method of communication between a network device and a repeater, comprising: The network device transmits the first information to the repeater; and / or receiving second information from the repeater by the network device; The repeater is identified by an identifier and / or a sequence. (Appendix 2) 2. The method of claim 1, wherein the identifier and / or the sequence includes one or more identifiers and / or sequences. (Appendix 3) The identifier and / or the sequence are: pre-configured identifiers and / or sequences; predefined identifiers and / or sequences, and 3. The method of claim 1 or 2, including at least one of an identifier and / or a sequence configured via signaling. (Appendix 4) The identifier and / or the sequence are: A unique identifier and / or sequence under the network device; a unique identifier and / or sequence within the network, and 4. The method of any of claims 1 to 3, including at least one of a pre-set identifier and / or sequence. (Appendix 5) 5. The method of any one of claims 1 to 4, wherein the identifier comprises a network device identifier and / or a terminal device identifier. (Appendix 6) 6. The method of any one of Supplementary Notes 1 to 5, wherein the identifier and / or the sequence is for at least one of a physical layer, a MAC layer, and an RRC layer. (Appendix 7) 7. The method of claim 6, wherein the identifier and / or the sequence, in whole or in part, is used to support at least one function of a physical layer, a MAC layer, and an RRC layer. (Appendix 8) 8. The method of any one of claims 1 to 7, further comprising the step of the network device providing the identifier and / or the sequence to the repeater. (Appendix 9) The step of the network device providing the identifier and / or the sequence to the repeater includes: receiving first request information from the repeater by the network device; The method of claim 8, further comprising the step of the network device transmitting a first identifier and / or a first sequence to the repeater. (Appendix 10) The step of the network device providing the identifier and / or the sequence to the repeater includes: receiving first trigger information from the repeater by the network device; the network device sending second request information to the repeater; receiving, by the network device, a second identifier and / or a second sequence from the repeater; and wherein the network device transmits a third identifier and / or a third sequence to the repeater. (Appendix 11) The step of the network device providing the identifier and / or the sequence to the repeater includes: receiving, by the network device, a fourth identifier and / or a fourth sequence from the repeater; and wherein the network device transmits a fifth identifier and / or a fifth sequence to the repeater. (Appendix 12) The step of the network device providing the identifier and / or the sequence to the repeater includes: 12. The method of any of claims 9 to 11, comprising the step of the network device receiving first confirmation information from the repeater. (Appendix 13) 8. The method of any one of claims 1 to 7, further comprising the step of the network device obtaining the identifier and / or the sequence from the repeater. (Appendix 14) The step of the network device obtaining the identifier and / or the sequence from the repeater includes: 14. The method of claim 13, comprising the step of the network device receiving a sixth identifier and / or a sixth sequence from the repeater. (Appendix 15) The step of the network device obtaining the identifier and / or the sequence from the repeater includes: receiving second trigger information from the repeater by the network device; the network device sending third request information to the repeater; and receiving, by the network device, a seventh identifier and / or a seventh sequence from the repeater. (Appendix 16) The step of the network device obtaining the identifier and / or the sequence from the repeater includes: 16. The method of claim 14 or 15, further comprising the step of the network device sending second confirmation information to the repeater. (Appendix 17) 16. The method of any one of Supplementary Notes 9 to 11, 14 to 15, wherein at least one of the first request information, the first trigger information, the fourth identifier and / or the fourth sequence, the sixth identifier and / or the sixth sequence, and the second trigger information is a preamble or Msg A. (Appendix 18) 15. The method of claim 11 or 14, wherein at least one of the fourth identifier and / or the fourth sequence, and the sixth identifier and / or the sixth sequence is carried by a PUSCH in a preamble or Msg A. (Appendix 19) 17. The method of any one of appendices 9 to 11, 14, and 16, wherein at least one of the first identifier and / or the first sequence, the second request information, the fifth identifier and / or the fifth sequence, and the second confirmation information is Msg.2, RAR, or MsgB. (Appendix 20) 17. The method of claim 12 or 16, wherein at least one of the first confirmation information and the second confirmation information is an ACK or a NACK. (Appendix 21) 11. The method of claim 10, wherein the third identifier and / or the third sequence is Msg.4. (Appendix 22) A method according to any one of appendices 17 to 19, wherein the content included in the PUSCH of the MsgA, the RAR, or the MsgB is defined for the repeater or reuses content defined for the terminal device. (Appendix 23) The repeater reads a portion of the information field of the first information, and / or 23. The method of any of claims 1 to 22, wherein the repeater fills a portion of the information field of the second information with default bits. (Appendix 23a) 2. The method of claim 1, wherein the first information and / or the second information are carried by a physical channel and / or sequence. (Appendix 24) the first information is generated by the network device based on the identifier and / or the sequence of the repeater; and / or the first information is scrambled based on the identifier of the repeater and / or the sequence; and / or 23. The method of claim 1, wherein the first information is received based on the identifier and / or the sequence of the repeater. (Appendix 25) the second information is generated based on the identifier and / or the sequence of the repeater; and / or the second information is scrambled based on the identifier of the repeater and / or the sequence; 25. A method according to any one of claims 1 to 24, wherein the second information is transmitted based on the identifier and / or the sequence of the repeater. (Appendix 26) The identifier and / or the sequence are: scrambling the first information and / or the second information carried by a physical channel; Generation and / or scrambling of reference signals for physical channels; Generation and / or scrambling of information carrying sequences; generating and / or scrambling a preamble sequence for the first information and / or the second information; generating and / or scrambling a preamble sequence for a channel or sequence for carrying the first information and / or the second information; and A method according to any one of appendices 1 to 25, wherein the first information and / or the second information indicates the repeater that the first information and / or the second information is targeting, or the first information and / or the second information indicates a particular repeater that part of the information in the first information and / or the second information is targeting. (Appendix 27) The scrambling of the first information and / or the second information carried by the physical channel comprises: 27. The method of claim 26, comprising scrambling for CRC bits and / or scrambling of channel coded bits. (Appendix 28) The generation and / or scrambling of the reference signal of the physical channel generating and / or scrambling a reference signal of the physical channel based on a cell ID and the identifier and / or the sequence of the repeater, or Generating a reference signal for the physical channel based on a cell identifier and scrambling the reference signal for the physical channel based on the identifier of the repeater and / or the sequence, or 27. The method of claim 26, comprising generating a reference signal for the physical channel based on the identifier and / or the sequence of the repeater, and scrambling the reference signal for the physical channel based on a cell identifier. (Appendix 29) The generation and / or scrambling of the information carrying sequence comprises: The method of claim 26, comprising generating and / or scrambling a sequence carrying the information based on the identifier and / or the sequence of the repeater and a beam identifier (beam ID) of the repeater on the terminal device side. (Appendix 30) The generation and / or scrambling of the information carrying sequence comprises: A method as described in Supplementary Note 26 or 29, comprising generating and / or scrambling a sequence conveying the information based on a cell identifier, the identifier and / or the sequence of the repeater, and a beam identifier (beam ID) on the terminal device side of the repeater. (Appendix 31) 27. The method of claim 26, wherein the preamble sequence is used to indicate the repeater to which the first information and / or the second information is intended. (Appendix 32) 32. The method of claim 31, wherein the preamble sequence is a DMRS sequence of a physical channel. (Appendix 33) 33. The method of any of Addendums 26 to 32, wherein the first information and / or the second information is at least one of control information, response information, measurement report information, trigger information, request information, and confirmation information. (Appendix 34) 34. The method of claim 33, wherein the control information and / or the response information includes the identifier and / or the sequence of the repeater. (Appendix 35) 34. The method of claim 33, wherein the control information is RRC control signaling or MAC CE or DCI. (Appendix 36) 36. A method according to any one of appendices 1 to 35, wherein the first information and / or the second information is repeater specific, or group common, or cell specific, or network device specific. (Appendix 37) 37. The method of any of claims 26 to 36, wherein the identifiers and / or sequences used in different processes are different identifiers and / or sequences, or different parts of one identifier and / or sequence. (Appendix 38) the cell identifier is the identifier of the repeater and / or part of the sequence, or 38. The method of any of claims 26 to 37, wherein a cell identifier is not part of the identifier of the repeater and / or the sequence.

Claims

1. A repeater, a communication module that communicates with the network device to receive control information; a forwarding module for amplifying and forwarding UL and / or DL ​​RF signals between the network equipment and a UE; The control information is received based on a repeater-specific identifier and / or a C-RNTI of the repeater; The beam of the repeater to the UE is identified by a beam index; A repeater in which the transmit and receive beam pairs use the same beam index.

2. The repeater of claim 1, wherein the repeater is a network-controlled repeater and the communication module is an NCR-MT.

3. The repeater of claim 1 , wherein the repeater-specific identifier is configured via signaling.

4. 2. The repeater of claim 1, wherein the communication module receives the control information via a control link, the control link being based on a Uu interface.

5. The repeater of claim 1 , wherein the control information is used to indicate a beam of the repeater to the UE and / or to instruct the repeater to perform amplification and forwarding of an UL or DL ​​RF signal.

6. The repeater according to claim 1 , wherein the communication module obtains the repeater-specific identifier and / or the C-RNTI from the network device.

7. 2. The repeater of claim 1, wherein the transmit beams and receive beams are in a one-to-one mapping.

8. The repeater of claim 1 , wherein the control information indicates a beam of the repeater to the UE based on the beam index.

9. 2. The repeater of claim 1, wherein the control information is carried by a physical channel, and the C-RNTI is used for scrambling bits transmitted on the physical channel before modulation.

10. The repeater of claim 1 , wherein the control information is dedicated to the repeater.

11. The repeater according to claim 1 , wherein the control information is included in RRC signaling, MAC CE, or DCI.

12. The repeater of claim 11 , wherein the CRC bits for the DCI are scrambled with the repeater-specific identifier.

13. The repeater according to claim 1 , wherein the communication module transmits a preamble and / or an MsgA and / or a measurement report and / or an ACK / NACK to the network device.

14. A network device, a transmitter for transmitting control information to the repeater; The control information is transmitted based on a repeater-specific identifier and / or a C-RNTI of the repeater; The beam of the repeater to the UE is identified by a beam index; A network device, wherein a pair of transmit and receive beams use the same beam index.

15. The network device of claim 14 , wherein the control information is included in RRC signaling, MAC CE, or DCI.

16. The network device of claim 15, wherein CRC bits for the DCI are scrambled with the repeater-specific identifier.

17. The network device of claim 14, wherein the control information is carried by a physical channel, and the C-RNTI is used for scrambling bits transmitted on the physical channel before modulation.

18. Repeater and a network device communicating with the repeater, The repeater comprises: a communication module that communicates with the network device to receive control information, the control information being received based on a repeater-specific identifier and / or a C-RNTI of the repeater; a forwarding module for amplifying and forwarding UL and / or DL ​​RF signals between the network equipment and a UE; The beam of the repeater to the UE is identified by a beam index; A communication system in which a transmit beam and a receive beam pair use the same beam index.

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