Information transmission method, information reception method, repeater, and network device

Abstract

An embodiment of the present invention provides an information transmission method, an information reception method, a repeater, and a network device, the information transmission method including a step of transmitting downlink control information from a network device to a repeater, the downlink control information being in a first DCI format, and including one or more first information fields for indicating beams, and / or one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing.

Description

[Technical Field]

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

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

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

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

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

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

[0007] According to the inventors' findings, enhancing coverage using conventional radio frequency repeaters is one viable solution to the coverage problem in the deployment of 5G systems. However, the forwarding operation of conventional radio frequency repeaters is network-independent. The effect of amplifying the forwarded signal is insufficient, and it may cause significant interference to other devices in the network, increasing the system's noise and interference levels and reducing network throughput. Specifically, taking antenna direction as an example, 5G systems use more advanced and complex MIMO (multiple-input, multiple-output) technology compared to 3G and 4G systems. In 5G systems, directional antennas are a basic component of network equipment and terminal devices, especially for high carrier frequencies, and signal transmission and reception based on beamforming technology is the basic signal transmission method in 5G systems. The direction and width of the (simulated) beams of network equipment and terminal devices may change dynamically due to changes in position (i.e., beam switching). However, the antennas of conventional radio frequency repeaters cannot dynamically adjust their direction, their beams are wider, and the beam direction and width of their transmitting and receiving antennas cannot flexibly adapt to dynamic changes in the location of network devices and terminal devices and the beam direction and width of the transmitting and receiving antennas. When such radio frequency repeaters are deployed in 5G systems, the beam direction and width of their transmitting and receiving antennas may not match the dynamic changes in the beam direction and width of the transmitting and receiving antennas of the network devices and terminal devices, resulting in insufficient performance / effectiveness of the amplified / enhanced target signals. Furthermore, using a wider transmitting beam may cause significant interference to other devices (e.g., network devices or terminal devices) within a wider range, increasing the noise and interference level of the entire system and reducing network throughput. However, there is currently no method for a network device to control the repeater's forwarding operation.

[0008] In view of at least one of the above problems, embodiments of the present invention provide an information transmitting method, an information receiving method, a repeater, and a network device. [Means for solving the problem]

[0009] In one aspect of an embodiment of the present invention, there is provided a network device including: a transmitter that transmits downlink control information to a repeater, the downlink control information being in a first DCI format, and the downlink control information including one or more first information fields for indicating a beam, and / or one or more second information fields for indicating a time domain resource, and / or one or more third information fields for indicating a subcarrier spacing.

[0010] Another aspect of an embodiment of the present invention provides a repeater including a receiver that receives downlink control information transmitted by a network device, the downlink control information being in a first DCI format, and the downlink control information including one or more first information fields for indicating beams, and / or one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing.

[0011] Another aspect of the embodiment of the present invention provides a communication system including the repeater and / or the network device described above.

[0012] One of the advantageous effects of the embodiment of the present invention is as follows: By instructing the beam of the repeater using DCI in the first DCI format, the network device can control the beam of the repeater so that the beam when the repeater performs transmission (transmission of downlink / uplink signals) matches the beam of the terminal device that receives / transmits the signal, thereby improving the effect of amplifying / boosting the signal, reducing interference to other devices in the network, and improving the network throughput.

[0013] 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.

[0014] 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.

[0015] 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]

[0016] Elements and features depicted in one drawing and one embodiment of an example of the invention may be combined with elements and features shown in one or more drawings or embodiments, and in the drawings, like reference numerals may indicate corresponding elements in multiple drawings and may indicate corresponding elements used in more than one embodiment.

[0017] The drawings included are used to further understand the embodiments of the present invention, constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the written description, explain the principles of the present invention. Note that the drawings described below are merely some examples of the present invention, and those skilled in the art can easily imagine other drawings based on these drawings. [Figure 1] 1 is a schematic diagram of an example of a communication system according to an embodiment of the present invention; [Figure 2] 1 is a schematic diagram of an example of an information transmission method according to an embodiment of the present invention; [Figure 3A] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 3B] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 3C] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 3D] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 3E] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 3F] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 3G] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 4A] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 4B] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 4C] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 4D] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 4E] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 4F] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 4G] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 5A] 5A to 5D are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 5B] 5A to 5D are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 5C] 5A to 5D are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 5D] 5A to 5D are schematic diagrams of correspondence relationships according to an embodiment of the present invention. [Figure 6] FIG. 2 is a schematic diagram of an example of a CORESET configuration according to an embodiment of the present invention. [Figure 7] 1 is a schematic diagram of a mapping relationship between PDCCH and physical resources according to an embodiment of the present invention; [Figure 8] 1 is a schematic diagram of an example of a method in which a network device and a repeater according to an embodiment of the present invention transmit DCI in a first DCI format. [Figure 9] A schematic diagram of an example of a method in which a network device according to an embodiment of the present invention transmits DCI in a first DCI format to a repeater. [Figure 10] FIG. 2 is a schematic diagram of an example of mapping of modulation symbols to physical resources according to an embodiment of the present invention; [Figure 11A] 11A and 11B are schematic diagrams illustrating two examples of wideband and narrowband mapping of a PDCCH DMRS according to an embodiment of the present invention. [Figure 11B] 11A and 11B are schematic diagrams illustrating two examples of wideband and narrowband mapping of a PDCCH DMRS according to an embodiment of the present invention. [Figure 12] 1 is a schematic diagram of an example of an information receiving method according to an embodiment of the present invention; [Figure 13] 1 is a schematic diagram of an example of a PDCCH candidate according to an embodiment of the present invention; [Figure 14] 1 is a schematic diagram of information transmission according to an embodiment of the present invention; [Figure 15]1 is a schematic diagram of an example of a repeater according to an embodiment of the present invention; [Figure 16] FIG. 2 is a schematic diagram of an example of a network device according to an embodiment of the present invention. [Figure 17] 1 is a schematic diagram of an example of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] 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.

[0019] In embodiments of the present invention, the terms "first," "second," etc. are used in titles to distinguish between different elements, but do not represent the spatial arrangement or temporal order of these elements, and these elements are not limited to these terms. The term "and / or" includes any and all combinations of one or more of the terms listed in the associated list. The terms "comprise," "include," "have," etc. refer to the presence of listed features, elements, elements, or components, but do not exclude the presence or addition of one or more other features, elements, elements, or components.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Among them, the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), an IAB donor, etc., as well as a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may include some or all of these functions, and each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0025] 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.

[0026] Among them, the terminal device may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless modulation / demodulation device, a wireless communication device, a handheld device, a machine-type communication device, a laptop computer, a cordless phone, a smartphone, a smart watch, a digital camera, etc.

[0027] For example, in a scenario such as the Internet of Things (IoT), the user equipment may be a monitoring or measuring device or apparatus, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0028] In an embodiment of the present invention, existing or future services may be performed between the network device and the terminal device, including, but not limited to, enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), highly reliable and low latency communications (URLLC), and vehicle-to-everything (V2X) communications.

[0029] Because conventional repeaters do not have the ability to communicate with network devices, they can help improve signal strength, but are not flexible enough to respond to complex environmental changes. Deploying conventional repeaters in a 5G network (especially in a high-frequency 5G network) may cause unnecessary interference to other network devices and / or terminal devices, and may reduce the transmission efficiency (e.g., throughput) of the entire network. To make repeater forwarding more flexible to match the characteristics of the 5G network, network devices need to be able to support repeaters and configure repeater forwarding according to network conditions.

[0030] In 3GPP Rel-18, a network-controlled repeater (NCR) is proposed to forward signals between network devices and terminal devices to improve NR coverage. The NCR can directly communicate with the network devices via a control link to support the NCR forwarding operations.

[0031] 1 is a schematic diagram of an example of an NCR according to an embodiment of the present invention. As shown in FIG. 1, an NCR 102 is disposed between a network device 101 and a terminal device 103. The NCR 102 may include two modules / components: a repeater mobile terminal (NCR-MT) and a repeater forwarding unit (NCR-Fwd). The NCR-Fwd is also referred to as a routing unit of an NCR-RU (NCR-RU). The NCR-MT is used to communicate with the network device, and the NCR-Fwd is used to forward signals transmitted and received between the network device and the terminal device. The NCR-MT and NCR-Fwd are functional entities that may be realized by the same or different hardware modules.

[0032] As shown in FIG. 1 , the NCR of an embodiment of the present invention can have three links: a control link (C-link), a backhaul link (BH link) for forwarding, and an access link (AC link). Here, the C-link is used for communication between the NCR and the network device. The BH link is used by the repeater to receive signals to be forwarded from the network device or to forward signals from the terminal device to the network device. The AC link is used by the repeater to forward signals from the network device to the terminal device or to receive signals to be forwarded from the terminal device. Specifically, the NCR-MT communicates with the network device via the C-link. The NCR-Fwd forwards signals via the BH link and the AC link.

[0033] In an embodiment of the present invention, a repeater can communicate with a network device. The repeater can receive a communication channel / signal transmitted by the network device and obtain information transmitted by the network device to the repeater by demodulating / decoding the channel / signal. This signal processing process is hereinafter referred to as "communication." The repeater can also forward a channel / signal transmitted between a network device and a terminal device. The repeater can amplify or process the channel / signal without demodulating / decoding it. This signal processing process is hereinafter referred to as "forwarding." "Communication" and "forwarding" are collectively referred to as "transmission." Furthermore, "transmitting or receiving on an AC (or BH) link" can be equivalent to "transferring on an AC (or BH) link," and "transmitting or receiving on a control link" can be equivalent to "communicating on a control link." The above terms are merely for convenience of explanation and do not limit the present invention. In some cases, the "forwarding unit" may be replaced with a "forwarding operation."

[0034] In an embodiment of the present invention, a repeater may be represented as a network controlled repeater (NCR), forwarder, radio frequency repeater, repeater, radio frequency repeater, or as a repeater node, forwarder node, repeater node, smart repeater, smart forwarder, smart repeater node, smart forwarder node, smart repeater node, etc., but the present invention is not limited thereto.

[0035] In the embodiments of the present invention, the network device may be a device of a serving cell of a terminal device, a device of a cell in which a repeater is located, a device of a serving cell of a repeater, or a parent node of a repeater. The present invention is not limited to the name of the repeater, and any device capable of realizing the above functions is included in the scope of the repeater according to the present invention.

[0036] In an embodiment of the present invention, the higher layer signaling may be, for example, radio resource control (RRC) signaling. The RRC signaling may include, for example, an RRC message, including, for example, a master information block (MIB), system information, a dedicated RRC message, an RRC information element (RRC IE), or an information field (or an information field) included in the RRC message or the RRC information element. The higher layer signaling may also be, for example, medium access control (MAC) signaling, or may be called a MAC control element (MAC CE). However, the present invention is not limited thereto.

[0037] In embodiments of the present invention, a plurality means at least two, or more than two.

[0038] In the embodiments of the present invention, "predefined" means that it is specified by a protocol or determined according to a rule specified by a protocol, and no additional configuration is required. "Configured / instructed" means that a network device is configured / instructed directly or indirectly by higher layer signaling and / or physical layer signaling. "Physical layer signaling" refers to, for example, but is not limited to, control information (DCI) carried by a physical control channel or control information carried by a sequence, and may be configured / instructed by introducing higher layer parameters into the higher layer signaling. "Higher layer parameters" refers to information fields and / or information elements (IEs) in the higher layer signaling.

[0039] Various aspects of embodiments of the present invention will now be described with reference to the drawings, which are merely examples and are not intended to limit the present invention.

[0040] Example 1 The embodiment of the present invention provides an information transmission method, which is explained from the network device side.

[0041] 2 is a schematic diagram of an example of an information transmission method according to an embodiment of the present invention. As shown in FIG. 3, the method may include the following steps:

[0042] Step 201: A network device transmits downlink control information to a repeater, the downlink control information being in a first DCI format, and the downlink control information including one or more first information fields for indicating beams, and / or one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing.

[0043] Note that the above-mentioned FIG. 2 merely exemplifies an embodiment of the present invention and is not limited thereto. For example, the execution order of each step may be adjusted as appropriate, and some other steps may be added or some steps may be deleted. Those skilled in the art may appropriately modify the above content and are not limited to the description of the above-mentioned FIG. 2.

[0044] In some embodiments, the downlink control information in the first DCI format is used to dynamically direct / control the access link beam, i.e., to control the forwarding part of the repeater, i.e., to transmit side control information or access link beam direction.

[0045] In the embodiments of the present invention, “downlink control information in a first DCI format,” “downlink control information employing a first DCI format,” or “DCI in a first DCI format” may be simply abbreviated as “first DCI format.” The same applies to other DCI formats.

[0046] In some embodiments, the downlink control information in the first DCI format is not used to schedule the PDSCH or the PUSCH.

[0047] In some embodiments, the downlink control information in the first DCI format may be used to schedule a PDSCH or a PUSCH.

[0048] In some embodiments, the network device further transmits downlink control information employing a second DCI format to the repeater. The second DCI format is different from the first DCI format, for example, the two DCI format numbers are different (e.g., the first DCI format is DCI format 2_8 and the second DCI format is DCI format 1_1). The second DCI format is used to schedule a PDSCH or a PUSCH and / or to activate or deactivate a beam configuration, although embodiments of the present invention are not limited thereto.

[0049] In some embodiments, the DCI of the first DCI format and the DCI of the second DCI format are monitored in the same or different SSs and / or employ the same or different RNTIs (e.g., with CRC scrambling).

[0050] In some embodiments, the first DCI format may be a newly introduced DCI format (e.g., DCI format 2_8, 2_9, or 2_10, etc.) or an existing DCI format (e.g., 1_1 or 2_0, etc.) (which existing DCI formats currently also support the functionality of embodiments of the present invention), and embodiments of the present invention are not limited thereto.

[0051] In some embodiments, the first DCI format is unicast or group common. The DCI of the first DCI format includes one or more first information fields for indicating a beam, and / or one or more second information fields for indicating a time domain resource, and / or one or more third information fields for indicating a subcarrier spacing. Note that the present invention is not limited thereto, and for example, the DCI of the first DCI format may further include other information fields, such as one or more information fields for indicating whether the first information field indicates a beam, and one or more information fields for indicating, for example, on / off.

[0052] In some embodiments, the beam refers to a beam of an access link, or a beam of a link between an NCR and a terminal device, or a beam of an NCR for receiving signals from a terminal device and / or a beam of an NCR for transmitting signals to a terminal device. In other words, the beam refers to a physical beam of an access link used by an NCR, or a physical beam of an access link for an NCR to perform forwarding.

[0053] The following describes the first information field.

[0054] In some embodiments, one first information field is used to indicate one beam index, or at most one beam index, or multiple beam indexes, which may include beam indexes corresponding to beams (i.e., (actual) physical beams) and / or beam indexes not corresponding to beams (i.e., (actual) physical beams).

[0055] In some embodiments, the beam index range is predefined and / or configured / instructed by higher layer signaling. For example, all beam indices in the beam index range are predefined or configured / instructed by higher layer signaling, or some beam indices are predefined and some beam indices are configured / instructed by higher layer signaling. In the latter case, for example, but not limited to, beam indices corresponding to beams are predefined and beam indices not corresponding to beams are configured / instructed by higher layer signaling.

[0056] For example, the beam index range is {X,X+1,…,X+N BI −1}, where X and N BI are predefined and / or configured / indicated by higher layer signaling, X represents, for example, the starting beam index or the minimum / lowest beam index, and N BI represents the number of beam indices, for example, where X=0, or X=1, or X=-1, or X=-2, or other values. BI =1 or N BI = 2, or N BI = 4, or N BI = 8, or other values. Here, the explanation of each example is omitted. BI The beam indices correspond to actual physical beams, e.g., N beam AC Assuming there are N actual physical beams, BI =N beam AC Or, N BI Some of the beam indices correspond to actual physical beams, and other beam indices do not correspond to actual physical beams. For example, N beam AC Assuming there are N real physical beams, BI =N beam AC +1, and the beam index X does not correspond to an actual physical beam, but to the beam indices {X+1, X+2, …, X+NBI −1} correspond to actual physical beams, or beam indices {X, X+1, …, X+N BI -2} correspond to actual physical beams, and the beam index X+N BI -1 does not correspond to an actual physical beam. Here, the actual physical beam N beam AC may be predefined or configured / indicated by higher layer signaling, e.g., N beam AC =1 or N beam AC = 2, or N beam AC = 4, or N beam AC = 8, or other values, but the description thereof will be omitted here. In the above example, the beam index range values ​​are continuous, but the present invention is not limited to this and may be discontinuous.

[0057] In some embodiments, the correspondence between beam indexes and beams may be predefined and / or configured by higher layer signaling and / or OAM. When configured by OAM, the specific interaction information depends on the implementation. For example, the repeater mobile terminal (NCR-MT) may report the relevant characteristics of the beam / antenna through OAM, and the network device may configure the beam and / or beam index of the NCR through OAM. Information interacted between the NCR-MT and the network device through OAM may be carried, for example, via a data radio bearer DRB.

[0058] In some embodiments, the NCR-MT may indicate / report the maximum number of DRBs it supports in the UE Capability Information message; if the maximum number is not indicated / reported (or is not present in the UE Capability Information), the NCR-MT does not support DRBs. Based on the DRBs, the NCR-MT connects to the OAM system via a protocol data unit (PDU) session or a packet data network (PDN) session (data of the PDU session or PDN session is carried via the DRBs). That is, the NCR-MT may establish a PDU session or a PDN session for OAM and exchange OAM information via the PDU session or the PDN session. For the PDU session or the PDN session, the NCR-MT can obtain an IP address or prefix from the core network using normal terminal device procedures.

[0059] In some embodiments, the beam index that does not correspond to a beam may be, for example, predefined and / or configured / indicated by higher layer signaling.

[0060] In some embodiments, when the beam index includes a beam index corresponding to a beam and a beam index not corresponding to a beam, the former is referred to as, for example, a valid beam index (first beam index), and the latter is referred to as, for example, an invalid beam index (second beam index). That is, when the first information field indicates a valid beam index, the first information field indicates the beam corresponding to the index, and when the first information field indicates an invalid beam index, the first information field does not indicate the beam. In some cases, the first information field needs to indicate a valid beam index, or the first information field may indicate a valid beam index or an invalid beam index.

[0061] In some embodiments, the bit values ​​of the first information field include bit values ​​with corresponding beam indexes and / or bit values ​​without corresponding beam indexes. For example, including the following: all values ​​of (the bits of) the first information field have corresponding beam indexes, or some values ​​have corresponding beam indexes and some values ​​do not. In the latter case, the first information field must indicate a beam index (i.e., the first information field must be set to a value with a corresponding beam index), or the first information field may or may not indicate a beam index (i.e., the first information field may be set to a value with a corresponding beam index (i.e., indicating a beam index) or a value without a corresponding beam index (i.e., not indicating a beam index)). Here, the "value without a corresponding beam index" includes, but is not limited to, a value that does not correspond to any physical beam (assuming that the beam index includes only beam indices corresponding to actually existing physical beams), a reserved value, a value for providing other information (e.g., used to indicate NCR-Fwd on / off, etc.) (assuming that the first information field is used to indicate both the beam and NCR-Fwd on / off), and / or a predefined specific value (e.g., all '0's or all '1's, which are not described here). The specific value may be used in some specific situations, for example, due to protocol specifications, and may affect how the NCR-MT processes / interprets one or more other information bits or information fields in the DCI. If the first information field does not indicate a beam index, the first information field does not indicate a beam.Referring to the above description of the beam index, "the first information field does not have / indicate a beam" includes the first information field indicating an invalid beam index and / or the first information field not having / indicating a beam index. "The first information field indicates a beam" includes the first information field indicating a valid beam index and / or the first information field indicating a beam index.

[0062] In some embodiments, the first information field may or may not indicate a beam.

[0063] The first information field will be described below by taking Tables 1 to 7 as examples. Table 1 is an example where the first information field indicates a beam.

[0064] [Table 1] As shown in Table 1, N beam AC = 4, and the beam index includes only valid beam indices {0, 1, 2, 3}. Some first information field bit values, for example, 110, 101, 110, 111, are reserved and do not have corresponding beam indices. Table 2 is an example where the first information field indicates a beam.

[0065] [Table 2] As shown in Table 2, N beam AC =4, and the beam indexes include valid beam indexes {0, 1, 2, 3} and invalid beam index {-1}, and some first information field bit values, for example 110, 101, 110, are reserved and do not have corresponding beam indexes. Table 3 is an example where the first information field indicates a beam

[0066] [Table 3] As shown in Table 3, N beam AC =4, and the beam indexes include valid beam indexes {0, 1, 2, 3} and invalid beam index {-1}, and some first information field bit values, for example 101, 111, 110, are reserved and do not have corresponding beam indexes. Table 4 is an example where the first information field indicates a beam

[0067] [Table 4] As shown in Table 4, N beam AC =4, and the beam index includes valid beam indexes {1, 2, 3, 4} and invalid beam index {0}, or the beam index includes only valid beam indexes {1, 2, 3, 4}, "000" is a predefined specific value and has no corresponding beam index, and other bit values, for example 101, 111, 110, are reserved values ​​and have no corresponding beam index. Table 5 is an example where the first information field indicates a beam

[0068] [Table 5] As shown in Table 5, N beam AC = 1, and the beam index includes a valid beam index {0} or is replaced with {1}. Some first information field bit values, such as 1, are reserved and do not have a corresponding beam index. In particular, there is only one beam (N beamAC =1), the first information field indicating a beam index or a valid beam index may mean that the first information field indicates NCR-Fwd ON. The first information field not indicating a beam index or indicating an invalid beam index may mean that the first information field indicates NCR-Fwd OFF. Table 6 is an example where the first information field indicates a beam

[0069] [Table 6] As shown in Table 6, N beam AC = 4, the beam indices include valid beam indices {0, 1, 2, 3} and invalid beam indices {4, 5, 6, 7}, and all first information field candidate bit values ​​have corresponding beam indices. Table 7 is an example where the first information field indicates a beam

[0070] [Table 7] As shown in Table 7, N beam AC = 4, and the beam index includes valid beam indices {0, 1, 2, 3} or may be replaced by {1, 2, 3, 4}, and all first information field candidate bit values ​​have corresponding beam indices.

[0071] In some embodiments, the number of first information fields in the downlink control information of the first DCI format is predefined and / or configured or indicated by higher layer signaling. In some embodiments, the number of first information fields or the maximum number of first information fields that can be configured (or included) by the first DCI format is related to, but not limited to, the number of beams and / or the operating frequency band (or frequency range FR) and / or the bit width of the first information fields.

[0072] For example, the number of first information fields is predefined. For example, N DCI fields are predefined in the DCI of the first DCI format. 1,fields The inclusion of N first information fields is predefined, 1,fields ≧1. For example, when the protocol specifies that the number of first information fields and the number of second information fields are the same and the number of second information fields is configured / indicated by higher layer signaling, the number of first information fields may be determined. For example, the number of first information fields is related to the number of time domain resources that can be indicated by the second information field. For example, the number of first information fields is equal to the maximum number of time domain resources that can be indicated by the second information field. Here, the maximum number is 1, which is the maximum number of time domain resources that can be configured by the configuration in the time domain resource table corresponding to the second information field, or 2, which is the maximum number of time domain resources included. For example, the maximum number of time domain resources that can be configured by the configuration in the time domain resource table is 4. According to an actual configuration, the time domain resource table includes two configurations, one of which includes two time domain resources and the other includes one time domain resource. That is, the maximum number of time domain resources included in the configuration in the time domain resource table is 2. If the above maximum number is the maximum number 1, the number of first information fields is 4, and if the above maximum number is the maximum number 2, the number of first information fields is 2.

[0073] For example, the number of first information fields is configured or indicated by higher layer signaling, for example, by introducing a new higher layer parameter 1. The new higher layer parameter 1 is the number N of first information fields in the DCI of the first DCI format. 1,fields For example, N 1,fields ∈{1,2…,N 1,fields max} (It may be defined as any set of non-consecutive integers greater than 0, but is not limited to this). 1,fields maxis predefined and / or configured / indicated by higher layer signaling, and represents the maximum number of first information fields that can be configured by (or included in) a DCI of the first DCI format.

[0074] For example, the number of first information fields in the downlink control information of the first DCI format is predefined and configured or indicated by higher layer signaling. If not configured / indicated by higher layer signaling (e.g., the above-mentioned higher layer parameter 1 is not provided), the number of first information fields in the first DCI format is predefined (i.e., the protocol specifies a default number, and the default number is used when the higher layer signaling does not configure the number of first information fields), and if configured / indicated by higher layer signaling (e.g., the above-mentioned higher layer parameter 1 is provided), the number of first information fields in the first DCI format is configured / indicated by higher layer signaling.

[0075] In some embodiments, the bit width of the first information field is predefined and / or configured or indicated by higher layer signaling, where the bit width of the first information field is the number of bits included in the first information field, and when the downlink control information includes multiple first information fields, the bit widths of different first information fields are the same or different, and the sets of beams and / or sets of beam indices corresponding to different first information fields are the same or different. In some embodiments, the bit width of the first information field is related to, but not limited to, the number of corresponding beam indices and / or the number of valid beam indices and / or the number of beams and / or the number of first information fields and / or the operating frequency band (or frequency range FR).

[0076] For example, the bit width is predefined, and the protocol defines the bit width L of the first information field. 1,bitwidthis defined as a predetermined value (an integer greater than 0, e.g., 1, 2, 3, 4), and for different frequency domain ranges or operating frequency bands, L 1,bitwidth For example, for FR1, the value may be 1 or 2, and for FR2, the value may be 3 or 4. For different first information fields, L 1,bitwidth The protocol may define that the bit width of the first information field is equal to or different from the number of beam indices N BI and / or the number of valid beam indices N BI,valid and / or the number of beams N beam AC and / or other parameters M, etc. For example, (outside 1) TIFF2026501649000009.tif8136, or (outside 2) TIFF2026501649000010.tif9136, or (Outside 3) TIFF2026501649000011.tif9136, or (outside 4) TIFF2026501649000012.tif9136, or (outside 5) TIFF2026501649000013.tif10136, or (outside 6) TIFF2026501649000014.tif10136, or (outside 7) TIFF2026501649000015.tif9136, or (outside 8) TIFF2026501649000016.tif9136. (In the above example, the rounding symbol can be removed if the result of the calculation is always an integer for all values ​​of the variable.) Here, N BI , N beam ACis as described above. M is an integer greater than 0 (e.g., M=1), is predefined, and / or is configured / indicated by higher layer signaling. M is, for example, equal to the number of bits in the first information field that are not used to indicate a beam index (here, it is assumed that the first information field may include bits that are not used to indicate a beam index), or the number of values ​​that do not correspond to a beam index (or are not used to indicate a beam index), or the number of values ​​that do not correspond to a valid beam index, or the number of invalid beam indices, or the number of predefined specific values, or the sum of two or more of the above numbers (e.g., the number of invalid beam indices + the number of predefined specific values).

[0077] In some embodiments, the number of beam indices N BI and / or the number of valid beam indices N BI,valid and / or the number of beams N beam AC is configured / indicated by higher layer signaling (e.g., higher layer parameters), it can also be said that the higher layer signaling (e.g., higher layer parameters) is used to indirectly / implicitly configure / indicate the bit width of the first information field.

[0078] For example, the bit width is configured or indicated by higher layer signaling, and the bit width L of the first information field 1,bitwidth One or more new higher layer parameters 2 may be introduced that are used to configure L. For example, 1,bitwidth ∈{1,2…,L 1,bitwidth max} (which may be defined as, but is not limited to, a set of discrete integers greater than 0), and L 1,bitwidth max represents the predefined and configurable maximum bit width for the first information field, where L 1,bitwidth max The values ​​of L may be predefined to be the same or different. For example, for FR1, 1,bitwidth max∈{1,2,3}, and for FR2, L 1,bitwidth max ∈{1,2,3,4,5,6}. Or, L 1,bitwidth The actual configurable maximum value of L varies. 1,bitwidth max = 6, and for FR1, L 1,bitwidth The actual configurable maximum value of is 3, and for FR2, L 1,bitwidth The maximum value that can actually be configured for L is 6. Here, for different first information fields, the configured L 1,bitwidth The values ​​of may be the same or different (accordingly, the number of corresponding beams N beam AC and / or the number of beam indices N BI and / or the number of valid beam indices N BI,valid (the same or different). For example, one of the above higher layer parameters 2 is introduced and the configured bit width is applied to all first information fields in the first DCI format. Alternatively, multiple of the above higher layer parameters 2 are introduced and used to configure the bit widths of different first information fields, respectively.

[0079] In some embodiments, the protocol may include a number of beams, N beam AC and / or beam index number N BI and / or effective beam index number N BI,valid is the bit width L of the first information field 1,bitwidth is defined as being determined by, for example, (outer 9) TIFF2026501649000017.tif8136, or (Outside 10) TIFF2026501649000018.tif8136, or (Outside 11) TIFF2026501649000019.tif9136, or (Outside 12) TIFF2026501649000020.tif10136, or (Outside 13) TIFF2026501649000021.tif9136, or (Outside 14) TIFF2026501649000022.tif8136, or (Outside 15) TIFF2026501649000023.tif9136, or (Outside 16) TIFF2026501649000024.tif9136, or (Outside 17) TIFF2026501649000025.tif9136, and the definitions of each parameter are as described above, and the description thereof will be omitted here. In this case, the bit width of the first information field is configured / indicated by higher layer signaling (e.g., higher layer parameters), that is, the higher layer signaling (e.g., higher layer parameters) determines the number of beams N beam AC and / or beam index number N BI and / or effective beam index number N BI,valid It can also be said that it is used to indirectly / implicitly construct / indicate.

[0080] For example, the bit width is predefined and configured / indicated by higher layer signaling; if the higher layer signaling is not configured / indicated (e.g., the above-mentioned higher layer parameter 2 is not provided), the bit width of the first information field is predefined (i.e., the protocol specifies a default bit width, and the default bit width is used when the higher layer signaling does not configure the bit width of the first information field); if the higher layer signaling is configured / indicated (e.g., the above-mentioned higher layer parameter 2 is provided), the bit width of the first information field is configured / indicated by the higher layer signaling.

[0081] The following describes the second information field.

[0082] In some embodiments, one second information field is used to indicate one time domain resource index, or at most one time domain resource index, or multiple time domain resource indexes, which may be replaced by a sequence number.

[0083] In some embodiments, the second information field corresponds to a time domain resource table. The time domain resource table is predefined and / or configured by higher layer signaling. The time domain resource table includes one or more time domain resource configurations. A time domain resource (TDRA) table (also referred to as a TDRA table for short) includes at least one row (column). For convenience of explanation, one row (column) is hereinafter referred to as one TDRA configuration. One TDRA configuration may include one time domain resource, multiple time domain resources, or no time domain resources. One of the time domain resources may be contiguous or non-contiguous.

[0084] In some embodiments, one time domain resource is defined by one or more parameters, such as a slot offset (used to determine the starting slot), a symbol offset (used to determine the starting symbol within the slot), a number of symbols (used to determine the duration of the time domain resource), and a subcarrier spacing. These parameters are predefined and / or configured by higher layer signaling. Here, the slot offset is an offset value between a reference point and the slot in which the time domain resource exists or the first slot in which the time domain resource exists. The value range of the offset value (e.g., the minimum and / or maximum offset values) is predefined and / or configured by higher layer signaling. The reference point is, for example, the slot in which a DCI of a first DCI format exists, the last slot in which a DCI of a first DCI format exists, the slot in which a previous time domain resource in the same configuration exists, or the last slot in which a previous time domain resource in the same configuration exists. When one time domain resource configuration includes multiple time domain resources, the reference points of the slot offsets of different time domain resources may be the same (e.g., all are the slots in which DCI of the first DCI format exists) or different (e.g., for the first time domain resource, it is the slot in which DCI of the first DCI format exists, and for the subsequent time domain resource, it is the slot in which the immediately preceding time domain resource exists). The symbol offset is the offset value between the first symbol of the time domain resource and the first symbol in the existing slot or the first existing slot. The symbol offset and / or the number of symbols must ensure, for example, that the configured time domain resources are in the same slot, or that the configured time domain resources may be in the same slot or may span multiple slots.

[0085] In some embodiments, the time domain resources in a configuration may be defined in the form of a list or a sequence. For example, an IE may be introduced, which includes the above parameters defining a time domain resource. A configuration may include a list or a sequence, which includes one or more fields corresponding to the above IE.

[0086] In some embodiments, the number of time domain resources included in each configuration in the time domain resource table may be the same or different. For example, the protocol specifies that the number of time domain resources included in each configuration must be the same or may be different. If they must be the same, each configuration may have N TR time domain resources, where N TR is the number of time domain resources included in the configuration (e.g., N TR =1) and / or the number of first information fields included in the DCI of the first DCI format (e.g., N TR =N 1,fields = 4). If it is acceptable for the numbers to differ, the configuration is TR ∈{0,1,…,N TR max} or N TR ∈{1,2,…,N TR max} (which may be defined as a set of non-consecutive integers greater than 0, but is not limited to this), where N TR max is the maximum number of time domain resources that can be included in the configuration (e.g., N TR =4) and / or the maximum number of first information fields that can be included in the DCI of the first DCI format (e.g., N TR =N 1,fields max =4).

[0087] In some embodiments, a specific configuration in the time domain resource table does not include time domain resources. For example, the protocol specifies that the first configuration in the time domain resource table (with index / sequence number 0 or 1) does not include time domain resources. The specific configuration is predefined and / or configured / instructed by higher layer signaling. Here, when configured / instructed by higher layer signaling, for example, the protocol specifies that the specific configuration (e.g., the first configuration) must not include time domain resources, or that the specific configuration may or may not include time domain resources.

[0088] In some embodiments, when one time domain resource configuration includes multiple time domain resources, different time domain resources may not coincide / overlap, or may coincide / overlap. The time domain resources listed in the configuration may be such that the later listed time domain resource must be located after (the start or end position of) the first listed time domain resource, or the later listed time domain resource may be located before (the start or end position of) the first listed time domain resource. The embodiments of the present invention are not limited thereto.

[0089] In some embodiments, the second information field may or may not indicate one or more time domain resources by indicating their configuration in a time domain resource table.

[0090] In some embodiments, the time-domain resource index may include a time-domain resource index corresponding to the time-domain resource and / or a time-domain resource index not corresponding to the time-domain resource. For example, the time-domain resource index is an index or sequence number of a configuration of one column (row) in the time-domain resource table corresponding to the second information field, and if all configurations in the time-domain resource table include a time-domain resource, the time-domain resource index includes only the time-domain resource index corresponding to the time-domain resource. If the time-domain resource table includes configurations that include a time-domain resource and configurations that do not include a time-domain resource, the time-domain resource index includes time-domain resource indexes corresponding to the time-domain resource and time-domain resource indexes not corresponding to the time-domain resource. As another example, if all configurations in the time-domain resource list include time-domain resources and all values ​​in the time-domain resource index correspond to configurations in the time-domain resource table, the time-domain resource index only includes time-domain resource indices corresponding to the time-domain resources; if some values ​​of the time-domain resource index correspond to configurations in the time-domain resource table and some values ​​do not correspond to any configuration in the time-domain resource table, the time-domain resource index includes time-domain resource indices corresponding to the time-domain resources and time-domain resource indices not corresponding to the time-domain resources, where the time-domain indices not corresponding to the time-domain resources are, for example, predefined and / or configured by higher layer signaling.

[0091] For example, the range of time domain resource index is {I start ,I start +1,…,I start +N TI -1}, where I start represents, for example, the starting time domain resource index or the minimum / lowest time domain resource index, and N TI represents the number of time domain resource indices, where I start =0 or Istart =1 or I start =-1 or I start = -2, or other value, and N TI = 1 or N TI = 2 or N TI = 4 or N TI = 8, or other values, the explanation of which is omitted here. TI The time domain resource indexes each correspond to one configuration / row / column in the time domain resource table. For example, let there be I configurations / rows / columns in the time domain resource table, and N TI = I. Or, N TI Some of the time domain resource indexes correspond to configurations in the time domain resource table, and others do not. For example, suppose there are I configurations / rows / columns in the time domain resource table, and N TI = I + 1, and the time domain resource index I start does not correspond to the configuration in the time domain resource table, and the time domain resource index {I start +1,I start +2,…,I start +N TI −1} respectively correspond to the configuration in the time domain resource table, or the time domain resource index {I start ,I start +1,…,I start +N TI -2} correspond to the configurations in the time domain resource table, and the time domain resource index I start +N TI -1 does not correspond to a configuration in the time domain resource table. In the above example, the values ​​of the time domain resource index range are continuous, but the present invention is not limited thereto and may be discontinuous.

[0092] In some embodiments, when the time domain resource index includes a time domain resource index corresponding to a time domain resource and a time domain resource index not corresponding to a time domain resource, the former is, for example, referred to as a valid time domain resource index (first time domain resource index), and the latter is, for example, referred to as an invalid time domain resource index (second time domain resource index). When the second information field indicates a valid time domain resource index, the second information field indicates a time domain resource corresponding to the index, and when the second information field indicates an invalid time domain resource index, the second information field does not indicate a time domain resource. In some cases, the second information field needs to indicate a valid time domain resource index, or the second information field may indicate a valid time domain resource index or an invalid time domain resource index.

[0093] In some embodiments, the bit values ​​of the second information field include bit values ​​with corresponding time-domain resource indices and / or bit values ​​without corresponding time-domain resource indices. For example, all values ​​of the second information field have corresponding time-domain resource indices, or some values ​​have corresponding time-domain resource indices and some values ​​do not. In the latter case, the second information field must indicate a time-domain resource index (i.e., the second information field must be set to a value with the corresponding time-domain resource index), or the second information field may indicate a time-domain resource index (i.e., be set to a value with the corresponding time-domain resource index), or may not indicate a time-domain resource index (i.e., be set to a value without the corresponding time-domain resource index).

[0094] For example, in a DCI of the first DCI format, the second information field may indicate a time-domain resource index, or may not indicate a time-domain resource index (i.e., the second information field may be set to a value that has a corresponding time-domain resource index (i.e., indicates a time-domain resource index) or does not have a corresponding time-domain resource index (i.e., does not indicate a time-domain resource index). Here, the "value that does not have a corresponding time-domain resource index" includes a value that does not correspond to any time-domain resource, a reserved value, and / or a value used to provide other information (e.g., used to indicate NCR-Fwd on / off, etc.) (assuming that the second information field is used to indicate both the time-domain resource and NCR-Fwd on / off), and / or a predefined specific value (e.g., all "0"s, all "1"s, description of which is omitted here), but the present invention is not limited thereto. The specific value may apply to, for example, some specific cases. For example, the protocol may specify that the second information field should be set to the specific value in some cases, or that setting the second information field to the specific value may affect how the NCR-MT processes / interprets one or more other information bits or information fields in the DCI. If the second information field does not indicate a time-domain resource index, the second information field does not indicate a time-domain resource. With reference to the above description of the time-domain resource index, "the second information field has / does not indicate a time-domain resource" includes the second information field indicating an invalid time-domain resource index and / or the second information field has / does not indicate a time-domain resource index. "The second information field indicates a time-domain resource" includes the second information field indicating a valid time-domain resource index and / or the second information field indicating a time-domain resource index.

[0095] In some embodiments, the second information field must indicate a time domain resource, or the second information field may or may not indicate a time domain resource.

[0096] The second information field will be described below by taking Tables 8 to 13 as examples. Table 8 is an example of the second information field indicating the time domain resource.

[0097] [Table 8] As shown in Table 8, the length of the time domain resource table I=4, and the time domain resource index only includes valid time domain resource indexes {1, 2, 3, 4}. Some bit values ​​100, 101, 110, and 111 are reserved values ​​and do not have corresponding time domain resource indexes. Table 9 is an example of the second information field indicating the time domain resource.

[0098] [Table 9] As shown in Table 9, the length of the time domain resource table is I=4, and the time domain resource indexes include valid time domain resource indexes {0, 1, 2, 3} and invalid time domain resource index {-1}. Some bit values ​​100, 101, and 110 are reserved values ​​and do not have corresponding time domain resource indexes. Table 10 is an example in which the second information field indicates time domain resources.

[0099] [Table 10] As shown in Table 10, the length of the time domain resource table is I=4, and the time domain resource indexes include valid time domain resource indexes {0, 1, 2, 3} and invalid time domain resource index {-1}. Some bit values ​​111, 101, and 110 are reserved values ​​and do not have corresponding time domain resource indexes. Table 11 is an example in which the second information field indicates time domain resources.

[0100] [Table 11] As shown in Table 11, the length of the time domain resource table I=4, and the time domain resource indexes include valid time domain resource indexes {1, 2, 3, 4} and invalid time domain resource index {0}, or the time domain resource indexes only include valid time domain resource indexes {1, 2, 3, 4}, "000" is a predefined special value and has no corresponding time domain resource index, and the other bit values ​​111, 101, and 110 are reserved values ​​and have no corresponding time domain resource index. Table 12 is an example in which the second information field indicates a time domain resource.

[0101] [Table 12] As shown in Table 12, the length of the time domain resource table is I=4, and the time domain resource indexes include valid time domain resource indexes {0, 1, 2, 3} and invalid time domain resource index {0}. Table 13 is an example in which the second information field indicates a time domain resource.

[0102] [Table 13] As shown in Table 13, the length of the time domain resource table is I=4, and the time domain resource index includes valid time domain resource indexes {0, 1, 2, 3} (or is replaced by {1, 2, 3, 4}). Every bit value has a corresponding time domain resource index.

[0103] In some embodiments, the number of second information fields is predefined and / or configured / indicated by higher layer signaling, and may be related to the number of first information fields and / or the number of time domain resources included in the configuration in the time domain resource table.

[0104] For example, if the number of second information fields is predefined, N 2,fields The inclusion of N second information fields may be predefined. For example, the DCI of the first DCI format includes only one second information field, i.e., N 2,fields = 1. Alternatively, the number of second information fields is the same as the number of first information fields, i.e., N 2,fields =N 1,fields Alternatively, the DCI of the first DCI format is N 1,fields >1 or N 1,fields ≧1 first information field, and the higher layer signaling configures one of the above time domain resource tables, and each configuration of the time domain resource table includes only one time domain resource or includes at most one time domain resource, the DCI of the first DCI format is 2,fields =N 1,fields N second information fields (each corresponding to a time domain resource table), and if one or more configurations or at least one configuration of the time domain resource table includes two or more time domain resources, the DCI of the first DCI format 2,fields = 1 second information field. The above is just an example, and the present invention is not limited thereto.

[0105] For example, when the number of second information fields is configured / indicated by higher layer signaling, a new higher layer parameter 3 is introduced. The new higher layer parameter 3 is the number N of second information fields in the first DCI format. 2,fields Used to configure the

[0106] For example, N 2,fields ∈{1,2…,N 2,fields max} (which may be defined as any set of discrete integers greater than 0, but is not limited to this). 2,fields max represents the maximum number of second information fields that are predefined and configurable in the first DCI format.

[0107] Also, for example, N 2,fields ∈{1,N 1,fields}, that is, the upper layer parameters are N in the first DCI format. 2,fields = 1 second information field, or N 2,fields =N 1,fields The second information field may be included.

[0108] Also, for example, the upper layer parameters configure the correspondence between the first information field and the second information field, and indirectly / implicitly configure the number of second information fields. For example, when configured in one-to-one correspondence, N 2,fields =N 1,fields When the second information fields are included and configured in a many-to-one (or all-to-one) manner, N 2,fields = 1 second information field. In particular, when only one first information field is included, the number of second information fields (1) may correspond to either "one-to-one correspondence" or "many-to-one" in terms of arrangement.

[0109] On the other hand, when both the number of first information fields and the number of second information fields are configured by upper layer parameters, the number of first information fields and the number of second information fields are configured by different upper layer parameters, respectively, or are configured by the same upper layer parameter (i.e., upper layer parameter 1 and upper layer parameter 3 are the same or different).

[0110] When configured with different upper layer parameters, they are as follows:

[0111] For example, the number of first information fields N 1,fields New higher layer parameters are introduced to configure the number of second information fields N 2,fields Another new upper layer parameter is introduced to configure (see above for respective explanations). When configured with the same upper layer parameters, the following applies:

[0112] For example, a new higher layer parameter is introduced to configure the number of first and second information fields.

[0113] For example, the first information field and the second information field exist in pairs, and the upper layer parameter is used to configure the number of {first information field, second information field} pairs. Alternatively, the upper layer parameter is used to configure the number of blocks (blocks are introduced in "enumeration order"). Alternatively, the upper layer parameter configures the number of first information fields and second information fields in combination, for example, {N 1,fields ,N 2,fields} pair, for example, {N,1} or {N,N}, where N≧1. Alternatively, the higher layer parameters configure the number of first information fields and second information fields, respectively.

[0114] Also, for example, the upper layer parameters may be the number N of first information fields. 1,fields or the number N of second information fields 2,fieldsThe protocol is used to configure N 1,fields =N 2,fields This allows the NCR-MT to know the number of first information fields and second information fields from this higher layer parameter. That is, this higher layer parameter directly configures the number of first information fields and indirectly configures the number of second information fields, or conversely, directly configures the number of second information fields and indirectly configures the number of first information fields.

[0115] For example, if the number of second information fields is predefined and configured / indicated by higher layer signaling, if the higher layer signaling is not configured / indicated (e.g., the above-mentioned higher layer parameter 3 is not provided), the number of second information fields is predefined (i.e., the protocol specifies a default number, and the default number is used when the higher layer signaling does not configure the number of second information fields), and if the higher layer signaling is configured / indicated (e.g., the above-mentioned higher layer parameter 3 is provided), the number of second information fields is configured / indicated by the higher layer signaling.

[0116] In some embodiments, the bit width of the second information field is predefined and / or configured or indicated by higher layer signaling, where the bit width of the second information field is the number of bits included in the second information field, and when a DCI of the first DCI format includes multiple second information fields, the time domain resource tables and / or sets of time domain resource indexes corresponding to different second information fields are the same or different, and the bit widths of the different second information fields are the same or different. The bit width of the second information field is determined by the length I of the corresponding time domain resource table (i.e., the number of included configurations) and / or the number N of time domain resource indexes. TI , and / or the number of valid time domain resource indices N TI,valid Related to.

[0117] For example, the bit width L of the second information field 2,bitwidth is determined by the length of the table (list). For example, (Outside 18) TIFF2026501649000032.tif9136, or (Outside 19) TIFF2026501649000033.tif8136, or (outside 20) TIFF2026501649000034.tif8136, or (outside 21) TIFF2026501649000035.tif9136, or (outside 22) TIFF2026501649000036.tif10136, or (outside 23) TIFF2026501649000037.tif10136. Here, Q is, for example, an integer greater than 0 (e.g., Q=1), predefined and / or configured / indicated by higher layer signaling. Q is, for example, equal to the number of bits in the second information field not used to indicate time-domain resource indexes (here, it is assumed that the second information field may include two parts of candidate bit values, some of which are not used to indicate time-domain resource indexes), or the number of values ​​not corresponding to time-domain resource indexes (or not used to indicate time-domain resource indexes), or the number of values ​​not corresponding to valid time-domain resource indexes, or the number of invalid time-domain resource indexes, or the number of predefined specific values, or the sum of two or more of the above (e.g., the number of invalid time-domain resource indexes + the number of predefined specific values). Here, the predefined specific values ​​are as described above, and their description will be omitted here. Here, Q is equal to the number of bits in the time-domain resource table (implicitly including the length I) and / or the number of time-domain resource indexes N. TI and / or the number of valid time domain resource indices N TI,validis configured / indicated by higher layer signaling (e.g., higher layer parameters), it can also be said that the higher layer signaling (e.g., higher layer parameters) is used to indirectly / implicitly configure / indicate the bit width of the second information field.

[0118] For example, the bit width L of the second information field 2,bitwidth is configured / indicated by higher layer signaling, for example, one or more new higher layer parameters 4 are introduced, and the new higher layer parameters 4 include the bit width L of the second information field. 2,bitwidth Specifically, higher layer parameters 2 for configuring the bit width of the first information field may be referenced, and the description thereof will be omitted here. For example, one of the above higher layer parameters 4 is introduced, and the configured bit width is applied to all second information fields in the DCI of the first DCI format. Alternatively, multiple of the above higher layer parameters 4 are introduced for respectively configuring the bit widths of different second information fields.

[0119] For example, if the bit width is configured / indicated by higher layer signaling, and if the higher layer signaling is not configured / indicated (e.g., higher layer parameter 4 above is not provided), the bit width of the second information field is predefined (i.e., the protocol specifies a default bit width, which is used when higher layer signaling does not configure the bit width of the second information field), and if the higher layer signaling is configured / indicated (e.g., higher layer parameter 4 above is provided), the bit width of the second information field is configured / indicated by higher layer signaling.

[0120] The following describes how the first information field and the second information field are arranged in the DCI of the first DCI format.

[0121] In some embodiments, the order of the information fields in the downlink control information includes all second information fields being arranged after or before all first information fields, or the second information fields and the first information fields being arranged alternately.

[0122] In some embodiments, all N 2,fields The second information fields are 1,fields The first information field is arranged before or after the second information field.

[0123] For example, N 1,fields ≧1, N 2,fields =1 Example 1: A second information field is located after the first information field First information field 1, first information field 2, ..., first information field N 1,fields , the second information field Example 2: The second information field is located before the first information field Second information field, First information field 1, First information field 2, ..., First information field N 1,fields For example, N 1,fields ≧1, N 2,fields =N 1,fields Example 1: Second Information Field After First Information Field First information field 1, first information field 2, ..., first information field N 1,fields , second information field 1, second information field 2, ..., second information field N 2,fields Example 2: The second information field is located before the first information field Second information field 1, second information field 2, ..., second information field N 2,fields , first information field 1, first information field 2, ..., first information field N 1,fields In some embodiments, the second information fields and the first information fields are arranged alternately (cross-over).2,fields N second information fields and 1,fields The first information fields are alternately arranged in the first DCI format in the order of the first information field followed by the second information field, or the second information field followed by the first information field.

[0124] For example, N 1,fields ≧1, N 2,fields =1 Example 1: First information field 1, second information field 1, first information field 2, ..., first information field N 1,fields For example, N 1,fields ≧1, N 2,fields =N 1,fields Example 1: First information field 1, second information field 1, first information field 2, second information field 2, ..., first information field N 1,fields , second information field N 2,fields Example 2: Second information field 1, first information field 1, second information field 2, first information field 2, ..., second information field N 2,fields , ..., first information field N 1,fields Example 3: The first DCI format is block number 1, block number 2, …, block number N block In this order, block Each block defines one or more first information fields and one or more second information fields. In each block, the first information fields and the second information fields are arranged as described above. For example, each block includes one first information field and one second information field, and N block =N 1,fields =N 2,fields The first information field and the second information field in the same block correspond to each other.

[0125] Block 1: First information field 1, second information field 1, or second information field 1, first information field 1 Block 2: First information field 2, second information field 2, or second information field 2, first information field 2 … Block N block : first information field N 1,fields , second information field N 2,fields or second information field N 2,fields , the first information field N 1,fields Number of first information fields N 1,fields and the number of second information fields N 2,fields If they are different, the explanation of how the first information field and the second information field are arranged will be omitted.

[0126] The following describes the correspondence between the first information field and the second information field, and / or the correspondence between the beam (beam index) indicated by the first information field and the time domain resource indicated by the second information field.

[0127] In some embodiments, a first information field corresponds one-to-one with a second information field, or multiple first information fields correspond to one second information field, or one first information field corresponds to multiple second information fields.

[0128] (1)N 1,fields ≧1, N 2,fields About =1 In some embodiments, all first information fields correspond to one second information field, i.e., beams indicated by all first information fields apply to one or more time domain resources indicated by the second information fields (beams indicated by different first information fields apply to the same or different time domain resources). The correspondence between the first information fields (or beams, beam indexes, or valid beam indexes indicated by the first information fields) and the time domain resources indicated by the second information fields may be one-to-one, many-to-one, or one-to-many. Here, one-to-one correspondence means, for example, that a beam indicated by one first information field corresponds to one time domain resource, and beams indicated by different first information fields correspond to different time domain resources indicated by one second information field, or that one time domain resource corresponds to a beam indicated by one first information field, and different time domain resources correspond to beams indicated by different first information fields. Many-to-one means, for example, that beams indicated by multiple first information fields correspond to the same time domain resource, and beams indicated by different first information fields among the multiple first information fields correspond to different frequency domain resources. One-to-many means, for example, that a beam indicated by one first information field corresponds to multiple time domain resources indicated by one second information field, and the multiple time domain resources may or may not coincide / overlap.

[0129] In some embodiments, in a DCI of the first DCI format, all first information fields are required to indicate a beam or a valid beam index or a beam index, or at least X (e.g., at least one) first information fields are required to indicate a beam or a valid beam index or a beam index (there may be one or more beam indexes that do not indicate a beam or a valid beam index or a beam index). In the latter case, for example, some first information fields (e.g., the first first information field) are required to indicate a beam or a valid beam index or a beam index, or any first information field may or may not indicate a beam or a valid beam index or a beam index, and / or if the nth first information field indicates an invalid beam index or does not indicate a beam or a beam index, the nth first information field and / or the n+1th and subsequent first information fields are ignored by the NCR-MT (i.e., the NCR-MT assumes that only the first n-1 first information fields indicate a beam or a valid beam index or a beam index (N 1,fields valid =n-1), and NCR-MT ignoring the first information field means that there is no need to transfer according to the first information field. For example, the first information field is read but there is no need to transfer according to the first information field, or there is no need to read the first information field and therefore there is no need to transfer according to the first information field), even if the (n+1)th and subsequent first information fields indicate a beam or a valid beam index or a beam index, and / or the (n+1)th and subsequent first information fields indicate an invalid beam index or do not indicate a beam or a beam index.

[0130] In some embodiments, if the n-th first information field (other than the first first information field) indicates a beam or a beam index, or the set bit value is the same as that of a previous first information field (e.g., the immediately preceding adjacent information field (n-1) or the first first information field), the n-th first information field and / or the first information fields after the n-th first information field (n+1 and thereafter) are ignored by the NCR-MT (i.e., the NCR-MT considers that only the first n-1 first information fields indicate a beam or a valid beam index or a beam index (N as described below)). 1,fields valid = n-1), and / or indicate an invalid beam index, or indicate no beam or beam index, or set a similar beam or beam index to a similar bit value (identical to the nth first information field). In particular, the nth first information field may be called an invalid first information field.

[0131] In some embodiments, a first information field that does not indicate a beam or a valid beam index or a beam index and / or a first information field that is ignored by the NCR may be referred to as an invalid first information field, and a first information field that indicates a beam or a valid beam index or a beam index and / or a first information field that is not ignored by the NCR may be referred to as a valid first information field.

[0132] In some embodiments, since there is only one corresponding second information field, in response to the above statement that "all first information fields must indicate a beam or a valid beam index or a beam index," the second information field may be N 1,fields That is, the configuration indicated by the second information field must indicate at least N time domain resources. 1,fields (e.g., N 1,fields(number of time domain resources), that is, each configuration in the time domain resource table corresponding to the second information field (or the DCI of the first DCI format) must include at least N 1,fields (e.g., N 1,fields The second information field must indicate at least one time domain resource. In other words, the configuration indicated by the second information field must include at least X (e.g., at least one) time domain resources, that is, each configuration in the time domain resource table corresponding to the second information field (or the DCI of the first DCI format) must include at least X (e.g., at least one) time domain resources. Corresponding to the above "at least X (e.g., at least one) first information field indicates a beam, or indicates a valid beam index, or indicates a beam index," the second information field must indicate at least one time domain resource. That is, the configuration indicated by the second information field must include at least X (e.g., at least one) time domain resources, that is, each configuration in the time domain resource table corresponding to the second information field (or the DCI of the first DCI format) must include at least X (e.g., at least one) time domain resources.

[0133] In some embodiments, the correspondence between the first information field (or the beam or beam index or valid beam index indicated by the first information field) and the time domain resource indicated by the second information field is determined based on the order of listing of the first information field in the DCI of the first DCI format, and / or whether the first information field indicates a beam, a valid beam index, or a beam index, and / or the order of listing in the time domain resource table structure of the time domain resource indicated by the second information field, and / or the order in the time domain of the time domain resource indicated by the second information field.

[0134] For example, the nth first information field (or the beam, beam index, or valid beam index indicated by the nth first information field) corresponds to the nth time domain resource indicated by the second information field. Also, for example, the first information field in which the nth information field indicates a beam, a valid beam index, or a beam index (or the nth information field indicates a beam, a valid beam index, or a beam index or valid beam index indicated by the first information field indicating a beam index) corresponds to the nth time domain resource indicated by the second information field.

[0135] The correspondence will be described below by way of example.

[0136] In some embodiments, the first number, N 1,fields valid (N 1,fields valid =N 1,fields or N 1,fields valid ≠N 1,fields ) first information fields indicate a beam, or a valid beam index, or a beam index, one second information field indicates the first few time domain resources, or one second information field indicates more than the first few time domain resources.

[0137] For example, the second information field may contain a first number, i.e., N TR =N 1,fields valid N time domain resources must be indicated. 1,fields valid N first information fields (or 1,fields valid N first information fields indicate 1,fields valid beams or beam index) are N TR It corresponds one-to-one to the time domain resources.

[0138] The correspondence relationship is, for example, N 1,fieldsvalid The order is determined according to the order in which the first information fields are listed in the DCI of the first DCI format and / or the order in which the time domain resources are listed in the time domain resource table structure, or the order of the time domain resources in the time domain.

[0139] 3A is a schematic diagram of a correspondence relationship according to an embodiment of the present invention. As shown in FIG. 3A, there are a total of first several first information fields, which are listed in the order listed in the DCI of the first DCI format, namely, first information field 1, first information field 2, ..., first information field N, where each first information field indicates a beam, and the first second information field indicates a first number of time domain resources, and the listing order of the time domain resource table configuration of the first number of time domain resources, or the order of the time domain resources in the time domain, is y_1, y_2, y_3, ..., y_N. The first information field 1 (designated beam index x_1 or designated beam x_1) corresponds to the time domain resource y_1 indicated by the second information field, the first information field 2 (designated beam index x_2 or designated beam x_2) corresponds to the time domain resource y_2 indicated by the second information field, and similarly, the first information field N (designated beam index x_N or designated beam x_N) corresponds to the time domain resource y_N indicated by the second information field.

[0140] 3B is a schematic diagram of a correspondence relationship according to an embodiment of the present invention. As shown in FIG. 3B, there are a total of N first information fields, which are listed in the order of the DCI of the first DCI format as first information field 1, first information field 2, ..., first information field N, where only the first number (N-1) first information fields indicate valid beam indices, one second information field indicates the first number (N-1) time domain resources, and the listed order of the time domain resource table configuration or the order in the time domain of the first number of time domain resources is y_1, y_2, y_3, ..., y_N-1. The first information field 1 (designated beam index x_1 or designated beam x_1) corresponds to the time domain resource y_1 indicated by the second information field, the first information field 3 (designated beam index x_3 or designated beam x_3) corresponds to the time domain resource y_2 indicated by the second information field, and similarly, the first information field N (designated beam index x_N or designated beam x_N) corresponds to the time domain resource y_N-1 indicated by the second information field.

[0141] 3C is a schematic diagram of a correspondence relationship according to an embodiment of the present invention. As shown in FIG. 3C, there are a total of N first information fields, which are listed in the order of the DCI of the first DCI format as first information field 1, first information field 2, ..., first information field N. Only a first number of two first information fields (first information field 1 and second information field 2) indicate valid beam indices, and one second information field indicates a first number of two time domain resources, which are y_1 and y_2 in the order of listing in the time domain resource table structure or the time domain order of the time domain resources. First information field 1 (designated beam index x_1 or designated beam x_1) corresponds to time domain resource y_1 indicated by the second information field, and first information field 2 (designated beam index x_2 or designated beam x_2) corresponds to time domain resource y_2 indicated by the second information field.

[0142] For example, if the second information field is N TR ≧N 1,fields valid indicates N time domain resources, 1,fields valid N first information fields (or 1,fields valid N first information fields indicate 1,fields valid beams or beam index) are N 1,fields valid These N 1,fields valid The time domain resources are, for example, N TR The first N of the time domain resources 1,fields valid time domain resources, e.g., the first N listed in the time domain resource table configuration 1,fields valid time domain resources, or the first N in the time domain 1,fields valid NCR may, but is not limited to, ignore subsequent (or remaining) time domain resources, and 1,fields valid The time domain resources are N TR the other N of the time domain resources 1,fields valid It may be a time domain resource.

[0143] This correspondence is, for example, N 1,fields the order of enumeration of the first information fields in the first DCI format, and / or 1,fields valid The order is determined based on the order of listing of the first information fields in the first DCI format and / or the order of listing of the time domain resources in the time domain resource table structure and / or the order of the time domain resources in the time domain.

[0144] 3D is a schematic diagram of a correspondence relationship according to an embodiment of the present invention. As shown in FIG. 3D, there are a total of N first information fields, which are listed in the order of DCI of the first DCI format as first information field 1, first information field 2, ..., first information field N, where only two of the first information fields (first information field 1 and second information field 2) indicate valid beam indices, and this one second information field indicates a number of time domain resources (e.g., N) greater than the first number, and the order of listing the N time domain resources in the time domain resource table structure or the order of the time domain resources is y_1, y_2, ..., y_N. The first information field 1 (indicated beam index x_1 or indicated beam x_1) corresponds to the time domain resource y_1 indicated by the second information field, the first information field 2 (indicated beam index x_2 or indicated beam x_2) corresponds to the time domain resource y_2 indicated by the second information field, the first information field 3 (indicated invalid beam index) corresponds to the time domain resource y_3 indicated by the second information field, and similarly, the first information field N (indicated invalid beam index) corresponds to the time domain resource y_N indicated by the second information field. Because the first information field 3 does not indicate a beam, the NCR ignores the first information field 4 and the subsequent first information fields, i.e., the NCR ignores the time domain resource corresponding to the first information field that does not indicate a beam, and / or the first information field 4 and the subsequent first information fields do not indicate a beam.

[0145] 3A to 3G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. As shown in FIG. 3E, there are a total of N first information fields, which are listed in the order of first information field 1, first information field 2, ..., first information field N in the DCI of the first DCI format, where a first number (N-1) of first information fields indicate valid beam indices, and a second information field 2 indicates no beam, and this one second information field indicates a number of time domain resources (e.g., N) greater than the first number, and the order of listing the N time domain resources in the time domain resource table configuration or the time domain order of the time domain resources is y_1, y_2, ..., y_N, and the first number of first information fields indicating beams correspond to the initial first number of time domain resources. The first information field 1 (designated beam index x_1 or designated beam x_1) corresponds to the time domain resource y_1 indicated by the second information field, the first information field 3 (designated beam index x_3 or designated beam x_3) corresponds to the time domain resource y_2 indicated by the second information field, and similarly, the first information field N (designated beam index x_N or designated beam x_N) corresponds to the time domain resource y_N-1 indicated by the second information field, where NCR ignores the time domain resources that do not have a corresponding beam (or the remaining).

[0146] In the above example, it is assumed that the number of time domain resources indicated by the indicated second information field is the same as the number of the first information field, but the present invention is not limited to this and may be more or less than the number of the first information field.

[0147] In the above example, a beam indicated by one first information field corresponds to one time domain resource (i.e., the one-to-one correspondence case described above), and a beam indicated by a different first information field corresponds to a different time domain resource indicated by one second information field, but embodiments of the present invention are not limited to this.

[0148] 3F is a schematic diagram of a correspondence relationship according to an embodiment of the present invention. As shown in FIG. 3F, beams indicated by multiple first information fields correspond to the same time domain resource (the above-mentioned many-to-one case). Here, there are a total of N first information fields, which are listed in the order of DCI in the first DCI format as first information field 1, first information field 2, ..., first information field N, each indicating a beam index. The one second information field indicates N / 2 time domain resources, and the listing order of the time domain resource table structure of the N / 2 time domain resources or the order of the time domain resources in the time domain is y_1, y_2, ..., y_N / 2. The first information field 1 (indicated beam index x_1) corresponds to the time domain resource y_1 indicated by the second information field, the first information field 2 (indicated beam index x_2) corresponds to the time domain resource y_1 indicated by the second information field, each two first information fields corresponds to one time domain resource, and similarly, the first information field N (indicated beam index x_N-1) and the first information field N (indicated beam index x_N) correspond to the time domain resource y_N / 2 indicated by the second information field.

[0149] 3G is a schematic diagram of a correspondence relationship according to an embodiment of the present invention. As shown in FIG. 3G, a beam indicated by one first information field corresponds to multiple time domain resources indicated by one second information field (the above-mentioned one-to-many case). Here, there are a total of N first information fields, which are listed in the order of DCI in the first DCI format as first information field 1, first information field 2, ..., first information field N, each indicating a beam index. This one second information field indicates 2N time domain resources, and the listing order of the time domain resource table structure of these 2N time domain resources or the order in the time domain of the time domain resources is y_1, y_2, ..., y_2N. The first information field 1 (indicated beam index x_1) corresponds to the time domain resources y_1 and y_2 indicated by the second information field, one first information field corresponds to two time domain resources, and similarly, the first information field N (indicated beam index x_N) corresponds to the time domain resources y_2N-1 and y_2N indicated by the second information field.

[0150] (2)N 1,fields ≧1, N 2,fields =N 1,fields About In some embodiments, the first information field (or the beam or beam index indicated by the first information field) and the second information field (or the time domain resource indicated by the second information field) have a one-to-one correspondence, or a many-to-one correspondence, or a one-to-many correspondence. Here, the one-to-one correspondence means, for example, that a beam indicated by one first information field corresponds to a time domain resource indicated by one second information field, and a beam indicated by a different first information field corresponds to a time domain resource indicated by a different second information field, or conversely, that a time domain resource indicated by one second information field corresponds to a beam indicated by one first information field, and a time domain resource indicated by a different second information field corresponds to a beam indicated by a different first information field. The many-to-one correspondence means, for example, that beams indicated by multiple first information fields correspond to time domain resources indicated by the same second information field, and that beams indicated by different first information fields among the multiple first information fields correspond to different frequency domain resources and / or different time domain resources indicated by the second information fields. Many-to-many means, for example, that a beam indicated by one first information field corresponds to time domain resources indicated by multiple second information fields, and the time domain resources indicated by the multiple second information fields may or may not coincide / overlap.

[0151] In some embodiments, in a DCI of the first DCI format, all first information fields must indicate a beam or a valid beam index or a beam index, or at least X (e.g., at least one) first information fields must indicate a beam or a valid beam index or a beam index (one or more may not indicate a beam or a valid beam index or a beam index). In the latter case, for example, some first information fields (e.g., the first first information field) must indicate a beam or a valid beam index or a beam index, or any of the first information fields may or may not indicate a beam or a valid beam index or a beam index, and / or if the nth first information field indicates an invalid beam index or does not indicate a beam or a beam index, the nth first information field or the n+1th first information field and subsequent first information fields are ignored by the NCR-MT (i.e., the NCR-MT considers that only the first n-1 first information fields indicate a beam or a valid beam index or a beam index (N as described below)). 1,fields valid= n-1), for example, the NCR-MT ignoring the first information field means that it does not need to forward according to the first information field, for example, it reads the first information field but does not need to forward according to the first information field, or it does not need to read the first information field and therefore does not need to forward according to the first information field), even if the n+1-th and subsequent first information fields indicate a beam or a valid beam index or beam index, and / or the n+1-th and subsequent first information fields indicate an invalid beam index or do not indicate a beam or beam index, and / or the n+1-th and / or subsequent second information fields are ignored by the NCR-MT, and / or the n+1-th and / or subsequent second information fields indicate an invalid time domain resource or do not indicate a time domain resource or time domain resource index (assuming that the n-th first information field corresponds to the n-th second information field).

[0152] In some embodiments, in a DCI of the first DCI format, all second information fields must indicate a time domain resource or a valid time domain resource index or time domain resource index, or at least Y (e.g., at least one or Y=X) second information fields must indicate a time domain resource or a valid time domain resource index or time domain resource index (one or more may not indicate a time domain resource or a valid time domain resource index or time domain resource index). In the latter case, for example, if some second information fields (e.g., the first second information field) need not indicate a time domain resource or a valid time domain resource index or time domain resource index, or if any second information field may or may not indicate a time domain resource or a valid time domain resource index or time domain resource index, and / or if the m-th second information field indicates an invalid time domain resource index or does not indicate a time domain resource or a time domain resource index, the m-th second information field and / or the m+1-th and subsequent second information fields are ignored by the NCR-MT (i.e., the NCR-MT only considers that the first m-1 second information fields indicate a time domain resource or a valid time domain resource index or time domain resource index (N 2,fields valid=m-1), the NCR-MT ignoring the second information field means that there is no need to forward according to the second information field, for example, reading the second information field but not needing to forward according to the second information field, or not needing to read the second information field and therefore not needing to forward according to the second information field), and / or the m+1th and subsequent second information fields must indicate an invalid time domain resource index or not indicate a time domain resource or a time domain resource index, and / or the mth and subsequent second information fields are ignored by the NCT-MT, and / or the mth and subsequent first information fields must indicate an invalid beam index or not indicate a beam or beam index (assuming the mth second information field corresponds to the mth first information field).

[0153] In some embodiments, a second information field that does not indicate a time domain resource or a valid time domain resource index or a time domain resource index, and / or a second information field that is ignored by the NCR, is referred to as an invalid second information field, and a second information field that indicates a time domain resource or a valid time domain resource index or a time domain resource index, and / or a second information field that is not ignored by the NCR, is referred to as a valid second information field.

[0154] In some embodiments, if the beam or beam index indicated by the nth first information field (other than the first first information field) or the set bit value is the same as that of a previous first information field (e.g., the immediately preceding adjacent information field (n-1) or the first first information field), the nth first information field and / or the first information fields after the nth first information field (n+1 and thereafter) are ignored by the NCR-MT (i.e., the NCR-MT only considers the first n-1 information fields to indicate a beam or valid beam index or beam index, and / or to indicate an invalid beam index, or not indicate a beam or beam index or the same beam or beam index, or to be set to the same bit value (same as the nth information field).

[0155] In some embodiments, if the time domain resource or time domain resource index, or the set bit value, indicated by the m-th second information field (other than the first second information field) is the same as that of a previous second information field (e.g., the immediately preceding adjacent information field (m-1) or the first second information field), the m-th second information field and / or the second information fields after the m-th second information field (m+1 and subsequent) are ignored by the NCR-MT (i.e., the NCR-MT considers only the first m-1 second information fields to be time domain resources or valid time domain resource indexes or time domain resource indexes (N as described below)). 2,fields valid =m-1), and / or indicate an invalid time domain resource index, or indicate no time domain resource or time domain resource index or a similar time domain resource or time domain resource index, or be set to the same bit value (same as the m-th second information field). In particular, the m-th second information field may be called an invalid second information field.

[0156] In some embodiments, if the first information field in the pth block indicates an invalid beam index or does not indicate a beam or beam index, and / or if the second information field indicates an invalid time-domain resource index or does not indicate a time-domain resource or time-domain resource index, or if the indicated time-domain resource or time-domain resource index or the set bit value is the same as that of the second information field in a previous block (e.g., the immediately preceding (p-1) adjacent block or the first block), the NCR ignores the pth block and / or subsequent (p+1)th and subsequent) blocks and / or sets the bits in the subsequent blocks to a specific value (e.g., all "0"s). The subsequent blocks may be referred to as invalid blocks.

[0157] In some embodiments, when there are multiple second information fields, different second information fields are based on the same or different time domain resource tables. A new higher layer parameter field and / or IE for configuring the time domain resource table for the second information field (or the first DCI format) may be introduced into higher layer signaling. When the time domain resource tables are the same, only one time domain resource table is configured, and all second information fields in the DCI of the first DCI format are based on this time domain resource table. In this case, the bit widths of different second information fields may be the same or different. When the time domain resource tables are different, multiple time domain resource tables are configured, and the different time domain resource tables correspond to different second information fields. In this case, the bit widths of the different second information fields may be the same or different. For example, each configuration in the above time domain resource table may include one time domain resource, or may include at least one time domain resource, or one or more configurations may not include a time domain resource and the other configurations may include one time domain resource, and this description will be omitted here. In some cases, whether the second information fields are the same or different depends on or is related to the number of time domain resource tables. If there is only one time domain resource table, the second information fields are based on the one time domain resource table. If there are multiple time domain resource tables, different second information fields are based on different time domain resource tables. For example, the above-mentioned higher layer signaling may configure one or more time domain resource tables. If one time domain resource table is configured, the multiple second information fields are all based on the time domain resource table. If the number of configured time domain resource tables is the same as the number of second information fields, the second information fields correspond one-to-one to the configured time domain resource tables, for example, in the order listed in the DCI of the second information fields and the order listed in the higher layer signaling of the time domain resource tables (the first second information field is based on the first time domain resource table, and so on).

[0158] In some embodiments, the correspondence between the first information field (or the beam or beam index or valid beam index indicated by the first information field) and the second information field (or the time domain resource or time domain resource index or valid time domain resource index indicated by the second information field) is determined based on the order in which the first information field is listed in the DCI of the first DCI format, and / or whether the first information field indicates a beam, indicates a valid beam index, or indicates a beam index, and / or the order in which the second information field is listed in the DCI of the first DCI format, and / or whether the second information field indicates a time domain resource, indicates a valid time domain resource index, or indicates a time domain resource index, and / or the order in which the second information field indicates the time domain resource in the time domain.

[0159] For example, the nth first information field in the first DCI format (or the beam or beam index or valid beam index indicated by the nth first information field) corresponds to the nth second information field (or the time domain resource or time domain resource index or valid time domain resource index indicated by the nth second information field). Also, for example, the first information field of the nth block in the DCI of the first DCI format (or the beam or beam index or valid beam index indicated by the first information field) corresponds to the second information field (or the time domain resource or time domain resource index or valid time domain resource index indicated by the second information field). Also, for example, the nth information field indicating a beam or beam index or valid beam index (or the beam or beam index or valid beam index indicated by the nth first information field indicating a beam or beam index or valid beam index) corresponds to the nth second information field indicating a time domain resource or time domain resource index or valid time domain resource index (or the beam or beam index or valid beam index indicated by the nth second information field indicating a time domain resource or time domain resource index or valid time domain resource index), and description thereof is omitted here.

[0160] In some embodiments, the number of second information fields indicating time domain resources or valid time domain resource indices or time domain resource indices is limited by the number of first information fields indicating beams or valid beam indices or beam indices, or the number of first information fields indicating beams or valid beam indices or beam indices is limited by the number of second information fields indicating time domain resources or valid time domain resource indices or time domain resource indices.

[0161] In some embodiments, whether a second information field needs to indicate a time domain resource or a valid time domain resource index or a time domain resource index is restricted by the corresponding first information field, or whether a first information field needs to indicate a beam or a valid beam index or a beam index is restricted by the corresponding second information field. For example, if the nth first information field indicates a beam or a valid beam index or a beam index, the nth second information field needs to indicate a time domain resource or a valid time domain resource index or a time domain resource index. Alternatively, if the nth second information field indicates a time domain resource or a valid time domain resource index or a time domain resource index, the nth first information field needs to indicate a beam or a valid beam index or a beam index. As another example, if the first information field in the nth block indicates a beam or a valid beam index or a beam index, the second information field needs to indicate a time domain resource or a valid time domain resource index or a time domain resource index. Alternatively, if the second information field in the nth block indicates a time domain resource or a valid time domain resource index or a time domain resource index, the first information field must indicate a beam or a valid beam index or a beam index.

[0162] The correspondence will be described below by way of example.

[0163] If the first information field is the main one, then in some embodiments the first number N 1,fields valid (N 1,fields valid =N 1,fields or N 1,fields valid ≠N 1,fields ) indicates a beam or a valid beam index or a beam index, the second number N of all second information fields 2,fieldsvalid The second information field indicates a time domain resource or a valid time domain resource index or a time domain resource index, and the second number is equal to the first number or the second number is greater than the first number.

[0164] For example, N 2,fields valid =N 1,fields valid The N second information fields indicate time domain resources or valid time domain resource indices or time domain resource indices. 1,fields valid The first information fields are N 2,fields valid For example, these N 1,fields valid The first information fields are N 1,fields The first N of the first information fields 1,fields valid are the first information fields, and these N 2,fields valid The second information fields are N 2,fields The first N of the second information fields 2,fields valid The present invention is not limited to this, and for example, 1,fields valid The first information fields are N 1,fields The last N of the first information fields 1,fields valid are the first information fields, and these N 2,fields valid The second information fields are N 2,fields The last N of the second information fields 2,fields valid Here, explanation of other examples will be omitted.

[0165] For example, N 2,fields valid ≧N 1,fields validThe second information fields indicate time domain resources or valid time domain resource indexes or time domain resource indexes. For example, 1,fields valid The first information fields are N 1,fields valid For example, these N 1,fields valid The first information fields are N 1,fields The first (or last) N of the first information fields 1,fields valid are the first information fields, and these N 1,fields valid The second information fields are N 2,fields The first (or last) N of the second information fields 1,fields valid N second information fields, or 2,fields valid The first (or last) N of the second information fields 1,fields valid This is the second information field. Explanation of other examples will be omitted here.

[0166] If the second information field is the main one, in some embodiments, N 2,fields valid (N 2,fields valid =N 2,fields or N 2,fields valid ≠N 2,fields ) second information fields indicate time domain resources or valid time domain resource indexes or time domain resource indexes, the first number N of all first information fields 1,fields valid The first information field indicates a beam or valid beam index or beam index, the first number being equal to the second number or the first number being greater than the second number.

[0167] For example, N 1,fields valid =N 2,fields validThe first information fields indicate the beam or valid beam index or beam index. 1,fields valid The first information fields are 2,fields valid For example, these N 1,fields valid The first information fields are N 1,fields The first (or last) N of the first information fields 1,fields valid are the first information fields, and these N 2,fields valid The second information fields are N 2,fields The first (or last) N of the second information fields 2,fields valid Here, explanation of other examples will be omitted.

[0168] For example, N 1,fields valid ≧N 2,fields valid The first information fields indicate the beam or valid beam index or beam index. 2,fields valid The second information fields are N 2,fields valid For example, these N first information fields correspond to each other. 2,fields valid The first information fields are N 1,fields The first (or last) N of the first information fields 2,fields valid N second information fields, or 1,fields valid The first (or last) N of the first information fields 2,fields valid are the first information fields, and these N 2,fields valid The second information fields are N 2,fields The first (or last) N of the second information fields 2,fields validHere, explanation of other examples will be omitted.

[0169] The correspondence will be explained below with reference to the drawings.

[0170] 4A to 4G are schematic diagrams of correspondence relationships according to an embodiment of the present invention. In Figures 4A to 4G, there are a total of N first information fields, which are listed in the order of first information field 1, first information field 2, ..., first information field N in the DCI of the first DCI format, and there are a total of N second information fields, which are listed in the order of second information field 1, second information field 2, ..., second information field N in the DCI of the first DCI format.

[0171] As shown in FIG. 4A, all first information fields indicate beams, all second information fields indicate time domain resources, the beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or indicated time domain resource y_1) indicated by the second information field 1, the beam index x_2 (or indicated beam x_2) indicated by the first information field 2 corresponds to the time domain resource index y_2 (or indicated time domain resource y_2) indicated by the second information field 2, and similarly below, the beam index x_N (or indicated beam x_N) indicated by the first information field N corresponds to the time domain resource index y_N (or indicated time domain resource y_N) indicated by the second information field N.

[0172] 4B , the first information field 2 does not indicate a beam, all other first information fields indicate beams, and all second information fields indicate time-domain resources, where the beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time-domain resource index y_1 (or indicated time-domain resource y_1) indicated by the second information field 1, the beam index x_3 (or indicated beam x_3) indicated by the first information field 3 corresponds to the time-domain resource index y_3 (or indicated time-domain resource y_3) indicated by the second information field 3, and similarly, the beam index x_N (or indicated beam x_N) indicated by the first information field N corresponds to the time-domain resource index y_N (or indicated time-domain resource y_N) indicated by the second information field N. The NCR ignores the second information field 2 and / or the time-domain resource index y_2 and / or the time-domain resource y_2 corresponding to the first information field that does not indicate a beam.

[0173] As shown in FIG. 4C, the first information field 2 does not indicate a beam, and all other first information fields indicate beams; the second information field 2 does not indicate a time domain resource, and all other second information fields indicate a time domain resource; the beam index x_1 (or the indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or the indicated time domain resource y_1) indicated by the second information field 1; the beam index x_3 (or the indicated beam x_3) indicated by the first information field 3 corresponds to the time domain resource index y_3 (or the indicated time domain resource y_3) indicated by the second information field 3; and similarly, the beam index x_N (or the indicated beam x_N) indicated by the first information field N corresponds to the time domain resource index y_N (or the indicated time domain resource y_N) indicated by the second information field N. The NCR ignores the second information field 2 corresponding to the first information field that does not indicate a beam, and / or the second information field 2 must indicate an invalid time domain resource index (time domain resource index y_2 is invalid), or does not indicate a time domain resource index, or does not indicate a time domain resource.

[0174] As shown in Figure 4D, the first information field 3 (n = 3) is the first first information field that does not indicate a beam. The NCR ignores the first information field 4 (n + 1) and / or the subsequent first information fields, and / or the first information field 4 and the subsequent first information fields do not indicate a beam. The second information field 3 (n = 3) corresponds to the first information field 3. The NCR ignores the second information field 3 (n = 3) and the subsequent second information fields, and / or the second information field 3 (n = 3) and the subsequent second information fields do not indicate a time domain resource. The beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or indicated time domain resource y_1) indicated by the second information field 1, and the beam index x_2 (or indicated beam x_2) indicated by the first information field 2 corresponds to the time domain resource index y_2 (or indicated time domain resource y_2) indicated by the second information field 2.

[0175] As shown in Fig. 4E, the first information field 2 does not indicate a beam, all other first information fields indicate beams, the second information field 2 does not indicate a time domain resource, and all other second information fields indicate a time domain resource. The beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or indicated time domain resource y_1) indicated by the second information field 1, the beam index x_3 (or indicated beam x_3) indicated by the first information field 3 corresponds to the time domain resource index y_3 (or indicated time domain resource y_3) indicated by the second information field 3, and similarly, the beam index x_N (or indicated beam x_N) indicated by the first information field N corresponds to the time domain resource index y_N (or indicated time domain resource y_N) indicated by the second information field N. The NCR ignores the first information field 2 and / or the beam index x_2 and / or the beam x_2 corresponding to the second information field 2 that does not indicate a time domain resource.

[0176] As shown in Fig. 4F, the first information field 2 (corresponding to the second information field 2) does not indicate a beam, all other first information fields indicate a beam, the second information field 2 does not indicate a time domain resource, and all other second information fields indicate a time domain resource. The beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or indicated time domain resource y_1) indicated by the second information field 1, the beam index x_3 (or indicated beam x_3) indicated by the first information field 3 corresponds to the time domain resource index y_3 (or indicated time domain resource y_3) indicated by the second information field 3, and so on. The beam index x_N (or indicated beam x_N) indicated by the first information field N corresponds to the time domain resource index y_N (or indicated time domain resource y_N) indicated by the second information field N. The NCR ignores the first information field 2 corresponding to the second information field that does not indicate a time domain resource, and / or the first information field 2 must indicate an invalid beam index (beam index x_2 is invalid), or does not indicate a beam index, or does not indicate a beam.

[0177] As shown in FIG. 4G, the second information field 3 (m=3) is the first second information field that does not indicate a time domain resource. The NCR ignores the second information field 4 (m+1) and / or the subsequent second information field, and / or neither the second information field 4 nor the subsequent first information field indicates a time domain resource. For the first information field 3 (m=3) corresponding to the second information field 3, the NCR ignores the first information field 3 (m=3) and the subsequent first information field, and / or neither the first information field 3 (m=3) nor the subsequent first information field indicates a beam. The beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or indicated time domain resource y_1) indicated by the second information field 1, and the beam index x_2 (or indicated beam x_2) indicated by the first information field 2 corresponds to the time domain resource index y_2 (or indicated time domain resource y_2) indicated by the second information field 2.

[0178] In the above example, N 1,fields N first information fields 2,fields N second information fields, 2,fields =N 1,fields = N, the n-th first information field corresponds to the n-th second information field, and N 1,fields valid N first information fields 2,fields valid The second information fields correspond one-to-one to the first information fields.

[0179] 5A to 5D are schematic diagrams of correspondence relationships according to an embodiment of the present invention. As shown in FIG. 5A to 5D, assuming that the first information field not indicating a beam and / or the second information field not indicating a time domain resource are skipped, N 1,fields valid N first information fields 2,fields valid5A to 5D, there are a total of N first information fields, which are listed in the order listed in the DCI of the first DCI format as first information field 1, first information field 2, ..., first information field N. There are a total of N second information fields, which are listed in the order listed in the DCI of the first DCI format as second information field 1, second information field 2, ..., second information field N.

[0180] As shown in Figure 5A, the first information field 2 does not indicate a beam, all other first information fields indicate beams, and all second information fields indicate time-domain resources. The beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time-domain resource index y_1 (or indicated time-domain resource y_1) indicated by the second information field 1, the beam index x_3 (or indicated beam x_3) indicated by the first information field 3 corresponds to the time-domain resource index y_2 (or indicated time-domain resource y_2) indicated by the second information field 2, and so on. The beam index x_N (or indicated beam x_N) indicated by the first information field N corresponds to the time-domain resource index y_N-1 (or indicated time-domain resource y_N-1) indicated by the second information field N-1. The NCR ignores the last second information field N and / or the time-domain resource index y_N and / or the time-domain resource y_N.

[0181] 5B, the first information field 2 does not indicate a beam, all other first information fields indicate beams, and all second information fields indicate time domain resources. The beam index x_1 (or indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or indicated time domain resource y_1) indicated by the second information field 1, the beam index x_3 (or indicated beam x_3) indicated by the first information field 3 corresponds to the time domain resource index y_2 (or indicated time domain resource y_2) indicated by the second information field 2, and so on. The beam index x_N (or indicated beam x_N) indicated by the first information field N corresponds to the time domain resource index y_N-1 (or indicated time domain resource y_N-1) indicated by the second information field N-1. The NCR ignores the last second information field N and / or the time domain resource index y_N and / or the time domain resource y_N, and / or the second information field N must indicate an invalid time domain resource index (the time domain resource index y_N is invalid), or does not indicate a time domain resource index, or does not indicate a time domain resource.

[0182] As shown in Figure 5C, all first information fields indicate beams, second information field 2 does not indicate a time domain resource, and all other second information fields indicate a time domain resource. The beam index x_1 (or indicated beam x_1) indicated by first information field 1 corresponds to the time domain resource index y_1 (or indicated time domain resource y_1) indicated by second information field 1, the beam index x_2 (or indicated beam x_2) indicated by first information field 3 corresponds to the time domain resource index y_3 (or indicated time domain resource y_3) indicated by second information field 3, and similarly, the beam index x_N-1 (or indicated beam x_N-1) indicated by first information field N-1 corresponds to the time domain resource index y_N (or indicated time domain resource y_N) indicated by second information field N. NCR ignores the last first information field N and / or beam index x_N and / or beam x_N.

[0183] 5D, the first information field N does not indicate a beam, all other first information fields indicate beams, the second information field 2 does not indicate a time domain resource, and all other second information fields indicate a time domain resource. The beam index x_1 (or the indicated beam x_1) indicated by the first information field 1 corresponds to the time domain resource index y_1 (or the indicated time domain resource y_1) indicated by the second information field 1, the beam index x_2 (or the indicated beam x_2) indicated by the first information field 2 corresponds to the time domain resource index y_3 (or the indicated time domain resource y_3) indicated by the second information field 3, and so on. The beam index x_N-1 (or the indicated beam x_N-1) indicated by the first information field N-1 corresponds to the time domain resource index y_N (or the indicated time domain resource y_N) indicated by the second information field N. The NCR ignores the last first information field N and / or beam index x_N and / or beam x_N, and / or the first information field N must indicate an invalid beam index (beam index x_N is invalid), or no beam index, or no beam.

[0184] The following describes the third information field.

[0185] In some embodiments, the downlink control information may include a third information field, and the subcarrier spacing SCS indicated by the third information field applies to all time domain resources indicated by one or more second information fields. Alternatively, the downlink control information may include multiple third information fields, and the second information field and the third information field have a one-to-one correspondence, and the SCS indicated by different third information fields apply to time domain resources indicated by different second information fields.

[0186] The following describes how to determine the payload size of the DCI in the first DCI format.

[0187] In some embodiments, the payload size of the downlink control information is determined by the bit width of an information field included in the downlink control information and / or is predefined and / or configured by higher layer signaling.

[0188] In some embodiments, the payload size of the downlink control information is greater than or equal to a predefined minimum value or configured by higher layer signaling, and less than or equal to a predefined maximum value or configured by higher layer signaling, where the predefined minimum value is, for example, 12, and the predefined maximum value is, for example, 140, where the maximum value is determined by the bit width of the information field and / or the maximum value of the information field of the downlink control information.

[0189] For example, if the total number of bits of the information fields included in a DCI of the first DCI format is less than the above-mentioned minimum value (e.g., 12), "0"s may be added after the last information field of the DCI of the first DCI format until the payload size is equal to the minimum value.

[0190] For example, the payload size of the first DCI format is N size is predefined or configured by higher layer signaling. The total number of bits of the information field included in the DCI of the first DCI format is N size If the payload size is smaller than N size "0"s may be added after the last information field until it is equal to

[0191] In some embodiments, the payload size of the downlink control information in the first DCI format is the same as or different from the payload size of the downlink control information in the second DCI format, which has been described above and will not be described again here.

[0192] For example, the payload size of the DCI in the first DCI format must be the same as the payload size of the DCI in the second DCI format. For example, if the payload size of the DCI in the first DCI format is smaller than that of the DCI in the second DCI format, "0"s are added after the last information field of the DCI in the first DCI format until the payload size is the same as that of the DCI in the second DCI format, or bits of the DCI in the second DCI format are truncated / punched so that the payload size of the DCI in the second DCI format is the same as that of the DCI in the first DCI format. Also, for example, if the payload size of the DCI in the first DCI format is larger than that of the DCI in the second DCI format, "0"s are added after the last information field of the DCI in the second DCI format until the payload size is the same as that of the DCI in the first DCI format, or bits of the DCI in the first DCI format are truncated / punched so that the payload size of the DCI in the first DCI format is the same as that of the DCI in the second DCI format. The DCI in the first DCI format and the DCI in the second DCI format are monitored in different SSs and / or use different RNTIs (for example, by scrambling the CRC).

[0193] For example, the payload size of the DCI in the first DCI format needs to be different from the payload size of the DCI in the second DCI format. For example, when the payload size of the DCI in the first DCI format and the payload size of the DCI in the second DCI format are the same, some bits (e.g., one "0" bit) are added to the DCI in the first DCI format or the DCI in the second DCI format so that the payload sizes are different. The DCI in the first DCI format and the DCI in the second DCI format are monitored in the same or different SSs and / or use the same or different RNTIs (e.g., CRC scrambling).

[0194] In some embodiments, one PDCCH for carrying one DCI is composed of one or more control-channel elements (CCEs). The aggregation level (AL) is the number of CCEs that make up one PDCCH, and currently supported AL ranges are shown in Table 14, for example.

[0195] [Table 14] In some embodiments, the set of PDCCH candidates that the NCR-MT needs to monitor is defined according to PDCCH search space sets, which define the monitoring occasions and the searching behavior within the monitoring occasions (i.e., how and where to search for PDCCH candidates).

[0196] In some embodiments, within one cell, the NCR-MT may configure multiple SSs. SSs are configured per BWP. Meanwhile, SS indices are configured per serving cell. Multiple SSs may be configured within one BWP or serving cell. SS 0 is associated with CORESET 0 by default, and for other SSs, SearchSpace includes higher layer parameters for configuring the SS index and the CORESET index associated with the SS. Thus, the NCR-MT can determine which CORESET each SS is associated with, and the CORESETs and search spaces associated with search spaces in one or more search space sets for monitoring downlink control information may be configured in the same BWP or different BWPs.

[0197] A search space set may be a common search space set (CSS set) or a UE-specific search space set (USS set). Currently, the NCR-MT can monitor the PDCCH (or monitor the DCI) with one or more search space sets, for example:

[0198] (1) Type 0-PDCCH CSS set It is configured by pdcch-ConfigSIB1 in the master information block MIB, or searchSpaceSIB1 in PDCCH-ConfigCommon, or searchSpaceZero in PDCCH-ConfigCommon. In the primary cell Pcell, a cyclic redundancy check (CRC) is used to monitor DCI format 1_0 scrambled by the system information radio network temporary identifier SI-RNTI, and the PDSCH scheduled by this DCI is used to carry the system information block SIB1.

[0199] (2) Type 0A-PDCCH CSS set Configured by searchSpaceOtherSystemInformation in PDCCH-ConfigCommon. In the Pcell, CRC is used to monitor DCI format 1_0 scrambled by SI-RNTI, and PDSCH scheduled by DCI is used to carry other system information SI.

[0200] (3) Type 1-PDCCH CSS set Configured by ra-SearchSpace in PDCCH-ConfigCommon. In a Pcell or PScell, CRC is used to monitor the DCI format scrambled by RA-RNTI, TC-RNTI, or MsgB-RNTI.

[0201] (4) Type 2-PDCCH CSS set Configured by pagingSearchSpace in PDCCH-ConfigCommon. In the Pcell, CRC is used to monitor DCI format 1_0 scrambled by P-RNTI.

[0202] (5) Type 3-PDCCH CSS set Configured by SearchSpace with searchSpaceType=common in PDCCH-Config.

[0203] (6) USS set It is configured by a SearchSpace of searchSpaceType=ue-specific in PDCCH-Config.

[0204] In some embodiments, the one or more search space sets for monitoring downlink control information of the first DCI format include CSS sets and / or USS sets. The network device may be configured such that the NCR-MT monitors the DCI of the first DCI format in CSS sets and / or USS sets, where the CSS set includes, for example, a Type3-PDCCH CSS set. The network device may be configured such that the NCR-MT monitors the DCI of the first DCI format in the Pcell, PScell, or Scell. For example, if one NCR-MT does not support carrier aggregation / dual connectivity (CA / DC), the network device may be configured such that the NCR-MT monitors the DCI of the first DCI format in the Pcell, i.e., the CSS sets and / or USS sets for monitoring the DCI of the first DCI format are in the Pcell. When one NCR-MT supports CA / DC, the network device is configured such that the NCR-MT monitors DCI of the first DCI format in the Pcell and / or PScell ​​and / or Scell, i.e., the CSS sets and / or USS sets for monitoring DCI of the first DCI format are in the Pcell, PScell, or Scell, respectively. Here, the CSS sets and / or USS sets for monitoring DCI of the first DCI format may or may not be used to monitor DCI of other DCI formats (e.g., DCIs of legacy DCI formats: DCI formats 1_0, 0_0, 1_1, 0_1, 1_2, 0_2, 2_0, etc.) (the network device may or may not be configured as above).

[0205] In some embodiments, the method may further include the step of the network device transmitting search space configuration information to the repeater, the search space configuration information including a fourth information field, the fourth information field being used to configure the repeater to monitor downlink control information.

[0206] For example, one or more new upper layer parameters 6 (or parameters or fields, corresponding to the fourth information field) are introduced into the search space configuration information SearchSpace IE, and the one or more new upper layer parameters 6 are used to configure the NCR-MT to monitor DCI of the first DCI format. The upper layer parameters are, for example, dci-Formats-MT-r18, dci-Formats-2_x-r18 (x=8, 9, or 10), and the one or more upper layer parameters 6 are optional, conditionally optionally present, or conditionally mandatory, respectively.

[0207] For example, this higher layer parameter is conditionally optional: for example, in NCR-MT and / or NCR-MT for FR2 (or FR2-1 and / or FR2-2, may be applied elsewhere) and / or PDCCH-Config, this parameter is optionally present, i.e. it may or may not be present (depending on the network device), otherwise (e.g., in PDCCH-ConfigCommon), this parameter is not present.

[0208] For example, this higher layer parameter may be conditionally mandatory, e.g., for NCR-MT and / or FR2, this parameter is mandatory / must be present, otherwise this parameter is absent or optional.

[0209] In some embodiments, the fourth information field may further include information for configuring the aggregation level and / or information for configuring the number of PDCCH candidates, i.e., this parameter may simultaneously be used to configure the aggregation level (AL), i.e., to configure the aggregation level of PDCCHs for carrying DCI of the first DCI format.

[0210] Example 1: Assume that this parameter is only used to configure the NCR-MT to monitor DCI of the first DCI format and is optional. If this parameter is present in SearchSpace, the NCR-MT determines AL / PDCCH candidates based on the parameters (e.g., nrofCandidates) used in SearchSpace to configure the AL to monitor DCI of the first DCI format. This parameter can be expressed using ASN.1 as follows:

[0211]

number

[0212] When this parameter exists in SearchSpace, the network device may configure only one aggregation level and the corresponding number of candidates, or may configure multiple aggregation levels and the corresponding number of candidates. On the other hand, the network device is required to configure one aggregation level (and the corresponding number of candidates) (i.e., this parameter must have one parameter for configuring AL (and the corresponding number of candidates)), or is required to configure at least one aggregation level (and the corresponding number of candidates) (i.e., this parameter must have at least one parameter for configuring AL (and the corresponding number of candidates)), or the network device may not configure an aggregation level (and the corresponding number of candidates) (i.e., this parameter may not have a parameter for configuring AL (and the corresponding number of candidates)).

[0213] If the parameter exists in the SearchSpace but the parameter for configuring the AL does not exist in the parameter, the NCR-MT determines AL / PDCCH candidates based on other parameters (e.g., nrofCandidates) for configuring the AL that exist in the SearchSpace to monitor DCI of the first DCI format. nrofCandidates is conditionally required, that is, when creating a new SearchSpace, nrofCandidates is required. This parameter can be expressed as follows using ASN.1:

[0214]

number

[0215] Example 1: searchSpaceType contains this one new upper layer parameter 6. searchSpaceType can be represented using ASN.1 as follows:

[0216]

number

[0217]

number

[0218] In one cell, an NCR-MT may be configured with multiple CORESETs. A CORESET is configured per BWP (i.e., the configuration information of one CORESET is included in the configuration information of one BWP, and the resources of the CORESET are within the BWP), while the index of the CORESET is per serving cell (i.e., the index of one CORESET is used to uniquely identify a CORESET in a cell). Figure 6 is a schematic diagram of an example of CORESET configuration. Here, for the same carrier, one NCR-MT is connected to a cell with an identifier of NCGI=5, and one terminal device or another NCR-MT is connected to a cell with an identifier of NCGI=6. The two devices are each configured with multiple BWPs and CORESETs in each BWP. The former consists of three BWPs and four CORESETs, i.e., CORESET 0 is in the initial BWP, CORESETs 1 and 2 are in BWP 1, and CORESET 3 is in BWP 2. The latter consists of two BWPs and three CORESETs, i.e., CORESET 0 is in the initial BWP, and CORESET 1 and CORESET 2 are in BWP 1.

[0219] In some embodiments, each CORESET associates only one / one type of CCE-to-REG mapping. The CCE-to-REG mapping of one CORESET may be non-interleaved or interleaved and is described by a REG bundle.

[0220] REG bundle i is defined as REGs {iL,iL+1,...,iL+L-1}, where L represents the REG bundle size, i=0,1,...,N REG CORESET / L-1 and N REG CORESET =N RB CORESET N symb CORESETis the number of REGs in the CORESET.

[0221] CCE j is defined by the REG bundles {f(6j / L), f(6j / L+1), ..., f(6j / L+6 / L-1)}, where f(·) is the interleaver.

[0222] For non-interleaved CCE-to-REG mapping, L=6 and f(x)=x.

[0223] For interleaved CCE-to-REG mapping, N symb CORESET For =1, L∈{2,6} and N symb CORESET For ∈{2,3}, L∈{N symb CORESET ,6}. The interleaver is defined as follows:

[0224]

number

[0225] For one CORESET configured by the ControlResourceSet IE, the index of this CORESET is given by the upper layer parameter controlResourceSetId / N RB CORESET is provided / given by the higher layer parameter frequencyDomainResources. symb CORESET is provided / given by the upper layer parameter duration, where N symb CORESET=3 is supported only if the higher layer parameter dmrs-TypeA-Position is equal to 3. Interleaved or non-interleaved mapping is provided / given by the higher layer parameter cce-REG-MappingType. For non-interleaved mapping, L=6, and for non-interleaved mapping, L is provided / given by the higher layer parameter reg-BundleSize. R is provided / given by the higher layer parameter interleaverSize. If the higher layer parameter shiftIndex is provided, n shift ∈{0,1,…,274} is provided / given by the upper layer parameter shiftIndex, otherwise n shift =N ID cell N ID cell is a physical layer cell identifier. For interleaved and non-interleaved mapping, NCR-MT may assume that if the higher layer parameter precoderGranularity is equal to sameAsREG-bundle, the same precoding is used in one REG bundle, if the higher layer parameter precoderGranularity is equal to allContiguousRBs, the same precoding is used in all REGs in the set of contiguous RBs in CORESET, and the REs and SSBs or LTE cell-specific reference signals in CORESET (e.g., indicated by the higher layer parameters lte-CRS-ToMatchAround, lte-CRS-PatternList1, or lte-CRS-PatternList2) do not overlap.

[0226] For CORESET 0 configured by the ControlResourceSetZero IE, N RB CORESET and N symb CORESETis provided / given by ControlResourceSetZero. NCR-MT is L=6, R=2, n shift =N ID cell When CORESET 0 is configured by MIB or SIB1, a normal cyclic prefix (CP) is assumed, and the same precoding is assumed to be used in one REG bundle.

[0227] 7 is a schematic diagram of a mapping relationship between PDCCH and physical resources according to an embodiment of the present invention, where N is the number of RBs in CORESET. RB CORESET = 18, number of symbols N symb CORESET Assume that ∑ ...

[0228] The following describes how the network device transmits DCI in the first DCI format in step 201.

[0229] 8 is a schematic diagram of an example of a method for transmitting DCI in a first DCI format by a network device and a repeater according to an embodiment of the present invention. As shown in FIG. 8, the transmission flow includes (1) encoding (the encoding step includes information element multiplexing, CRC attachment, channel coding, and rate matching), (2) scrambling, (3) modulation, and (5) mapping to physical resources. The reception flow includes (1) demodulation, (2) descrambling, and (3) decoding.

[0230] The transmission flow will be further explained below with reference to FIG.

[0231] (1) Encoding includes the following steps:

[0232] Step 901: Information element multiplexing The information field in the DCI of the first DCI format includes information bits a0 to a A-1 For example, each information field (including zero-padding bits, if any) is mapped sequentially in the order of the above example, with the first information field mapped to the lowest order information bit a0, and then each successive field mapped to a higher order information bit. The most significant bit (MSB) of each information field is mapped to the least significant information bit for that information field, for example, the MSB of the first information field is mapped to a0.

[0233] Step 902: CRC attachment A cyclic redundancy check (CRC) provides error detection for the DCI transmission. The CRC of the DCI in the first DCI format is scrambled using a newly introduced RNTI, and a new RNTI is configured for the repeater only. For example, this newly introduced RNTI may include a network controlled repeater RNTI (NCR-RNTI), an access link indication / indicator RNTI (ACI-RNTI), an access link beam indication / indicator RNTI (ACBI-RNTI), a beam indicator / indication / index RNTI (BI-RNTI), an aperiodic beam indication RNTI (ABI-RNTI), a network controlled repeater RNTI (SCI-RNTI), etc.

[0234] This newly introduced RNTI is configured by higher layer signaling. For example, one new higher layer parameter 7 is introduced, and this new higher layer parameter 7 is used to configure the RNTI for scrambling DCI of the first DCI format. This higher layer parameter 7 is optional, conditionally optionally present, or conditionally mandatory. For example, for NCR-MT and / or FR2, this higher layer parameter 7 is optional, and if not, the higher layer parameter 7 is not present. Also, for example, for NCR-MT and / or FR2, this higher layer parameter 7 is mandatory, and if not, the higher layer parameter 7 is not present.

[0235] In some embodiments, a0, a1, a2, a3, ..., a A-1represents the payload bits (i.e., input bits), and p0, p1, p2, p3, ..., p L-1 represents parity bits, where A is the payload size, L1 is the number of parity bits, and L=24. The bit string a'0, a'1, a'2, a'3, ..., a A+L1-1 becomes:

[0236]

number

[0237]

number

[0238]

number

[0239] Step 904: Rate matching The above bit string (or information bit) d0, d1, d2, d3, ..., d N-1 The output bitstream after rate matching is f0,f1,f2,f3,...,f E-1 where E is the number of information bits after rate matching, or the length of the rate-matching output sequence. The number of information bits after rate matching is equal to the number of bits (number of bits) transmitted on the physical channel (PDCCH), i.e., E=M bit is.

[0240] Step 905: Scrambling Before modulation, the information bits are scrambled.

[0241] Let b(0),...,b(M bit -1), where M bit is the number of bits transmitted on the physical channel (PDCCH). Before modulation, the PDCCH carrying downlink control information is scrambled using a scrambling sequence, which is initialized based on the first parameter and the second parameter. That is, it is scrambled using the scrambling sequence c(i) according to (2), and the scrambled bit block (Outside 25) Get TIFF2026501649000048.tif8136.

[0242]

number

[0243] First parameter: n ID For the downlink control information, if the network device configures scrambling ID information for the CORESET, the first parameter is determined based on the scrambling ID information. If the downlink control information is transmitted in the CSS, the network device does not configure scrambling ID information for the CORESET, and the first parameter is determined based on the cell ID.

[0244] For example, if DCI of the first DCI format is transmitted in USS, and the higher layer parameter (scrambling ID) pdcch-DMRS-ScramblingID is configured (for the associated CORESET), then n ID ∈{0,1,…,65535} is equal to the upper layer parameter pdcch-DMRS-ScramblingID, otherwise n_ID= n ID cell is.

[0245] For example, if DCI in the first DCI format is transmitted in CSS, n ID =n ID cell (e.g., if the higher layer parameter pdcch-DMRS-ScramblingID (for the associated CORESET) cannot be configured (as specified in the protocol), or if the higher layer parameter pdcch-DMRS-ScramblingID (for the associated CORESET) is configured, n ID ∈{0,1,…,65535} is equal to the upper layer parameter pdcch-DMRS-ScramblingID, otherwise n ID =nID cell is.

[0246] Second parameter: n RNTI For , if the network device configures scrambling ID information for CORESET, the second parameter is provided by C-RNTI, or if the downlink control information is transmitted in CSS, the network device does not configure scrambling ID information for CORESET and the second parameter is 0.

[0247] For example, when DCI of the first DCI format is transmitted in USS, if the upper layer parameter (scrambling ID) pdcch-DMRS-ScramblingID is configured, n RNTI is provided by the C-RNTI for the PDCCH in the USS, otherwise, n RNTI =0.

[0248] For example, if DCI in the first DCI format is transmitted in CSS, n RNTI = 0 (e.g., if the higher layer parameter pdcch-DMRS-ScramblingID cannot be configured (for the associated CORESET) or if the higher layer parameter pdcch-DMRS-ScramblingID is configured (as specified by the protocol) RNTI is provided by the C-RNTI for the PDCCH in the USS, otherwise, n RNTI =0.

[0249] Generic pseudo-random sequences are defined by length-31 Gold sequences. PN The output sequence c(n), n=0,1,…,M PN -1 (corresponding to the scrambling sequence denoted by c(i) above, and M PN =M bit ) is defined as follows:

[0250] c(n)=(x1(n+N c )+x2(n+N c )) mod 2 x1(n+31)=(x1(n+3)+x1(n)) mod 2 x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n)) mod 2 where N c = 1600, and the first m-sequence x1(n) is initialized by x1(0) = 1, x1(n) = 0, n = 1, 2, ..., 30. The second m-sequence x2(n) is initialized by c init It is initialized by

[0251] Step 906: Modulation The above bit block (i.e., bit string or information bit) (outside 26) TIFF2026501649000050.tif9136 is modulated by QPSK and has complex-valued modulation symbols d(0),…,d(M symbol -1), where M symbol represents the number of modulation symbols.

[0252] Step 907: Mapping to physical resources The modulation symbols d(0),…,d(M symbol −1) (preferably, the coefficient β PDCCH The resource elements (REs) (k,l) unused for the associated PDCCH DMRS of the monitored PDDCH are arranged in ascending order of frequency domain index k first and then in ascending order of time domain index l. p,μ where antenna port p=2000 and (k, l) p,μ denotes the resource element of frequency domain index k and time domain index l for antenna port p and subcarrier spacing configuration μ (shown in Table 15 below). Table 15. Number of supported transmissions

[0253] [Table 15] 10 is a schematic diagram of an example of mapping of modulation symbols to physical resources, where N is the number of RBs included in the CORESET. RB CORESET = 6, number of symbols N symb CORESET Assume that d(0), ..., d(M symbol -1), M symbol =N RB CORESET N symb CORESET (If necessary, the coefficient β PDCCH (after being scaled by k) are mapped to REs not used for DMRS in CCE0 (i.e., REGs0 to 5) in the order of first frequency domain and then time domain (first ascending order of RE frequency domain index k, then ascending order of time domain index l).

[0254] The following describes the PDCCH DMRS.

[0255] In some embodiments, a DMRS reference signal sequence for a PDCCH carrying downlink control information is initialized based on a first parameter.

[0256] The UE receives the reference signal sequence r for OFDM symbol l. l Assume that (m) is defined as follows:

[0257]

number

[0258] For example, if DCI of the first DCI format is transmitted in USS, and the higher layer parameter pdcch-DMRS-ScramblingID is configured (for the associated CORESET), then n ID ∈{0,1,…,65535} is equal to the upper layer parameter pdcch-DMRS-ScramblingID, otherwise n ID =n ID cell is.

[0259] For example, if DCI in the first DCI format is transmitted in CSS, n ID =n ID cell (e.g., the higher layer parameter pdcch-DMRS-ScramblingID (for the associated CORESET) cannot be configured (due to protocol specifications). Alternatively, if the higher layer parameter pdcch-DMRS-ScramblingID (for the associated CORESET) is configured, then n ID ∈{0,1,…,65535} is equal to the upper layer parameter pdcch-DMRS-ScramblingID, otherwise n ID =n ID cell is.

[0260] In some embodiments, when mapped to physical resources, the PDCCH DMRS may be a wideband mapping or a narrowband mapping.

[0261] For example, the reference signal sequence r l (m) is REs(k,l) p,μ is mapped to (k,l) p,μ denotes the resource element of frequency domain index k and time domain index l for antenna port p and subcarrier spacing configuration μ.

[0262]

number

[0263] If the upper layer parameter precoderGranularity is equal to sameAsREG-bundle, then these REs(k,l) p,μ are within the REGs that make up the PDCCH that the UE attempts to decode, i.e., narrowband mapping. If precoderGranularity is equal to allContiguousRBs, then these REs(k,l) p,μ is in all REGs in the set of contiguous resource blocks in the CORESET that constitutes the PDCCH that the UE attempts to decode, i.e., wideband mapping.

[0264] The reference point for k is as follows: If CORESET is configured by the controlResourceSetZero field in the PBCH (or MIB) or PDCCH-ConfigCommon IE, the reference point for k is subcarrier 0 of the RB with the lowest number / sequence number in CORESET (i.e., k=0 corresponds to subcarrier 0); otherwise, the reference point for k is subcarrier 0 of common RB 0 (i.e., k=0 corresponds to subcarrier 0). Here, l is the OFDM symbol number in the slot. Antenna port p=2000.

[0265] As can be seen from the above equation, among the REGs that transmit the DMRS, three REs (REs 1 / 5 / 9) in each REG are used for mapping / transmitting the DMRS.

[0266] 11A and 11B are schematic diagrams of two examples of wideband and narrowband mapping of a PDCCH DMRS. In the first example, all RBs in the CORESET are contiguous (i.e., there is only one set of contiguous RBs). In the second example, the CORESET includes discontinuous RBs (each set is two contiguous RBs). Assuming that the CCE-to-REG mapping is interleaved, one PDCCH corresponds to a non-contiguous REG. As shown in FIGS. 11A and 11B, in the case of wideband mapping, all REGs in the set of contiguous RBs in the CORESET where the PDCCH exists are used to transmit the DMRS. That is, in a set of contiguous RBs, even if one REG is not used for transmitting the PDCCH, it is still used for transmitting the DMRS, thereby improving the accuracy of channel estimation. In the case of narrowband mapping, all REGs in the set of contiguous RBs in the PDCCH exist are used to transmit the DMRS. That is, if one REG is not used for transmitting the PDCCH, it is not used for transmitting the DMRS, thereby saving resources.

[0267] In some embodiments, the method further includes a step of the network device transmitting first configuration information to the repeater. The first configuration information includes information indicating the number of first information fields, information indicating a bit width of the first information fields, information indicating the number of second information fields, information indicating a bit width of the second information fields, information indicating a payload size of the downlink control information, and / or information indicating an RNTI used by a CRC of the downlink control information. The first configuration information includes, for example, any of the above-mentioned upper layer parameters 1 to 5 and 7, although embodiments of the present invention are not limited thereto and the above-mentioned upper layer parameters 1 to 5 and 7 may be the same or different.

[0268] In some embodiments, the method may further include a step in which the network device receives capability information transmitted by the repeater. The capability information may or may not include fifth information indicating whether / how the repeater supports the first DCI format. The fifth information may include one or more of information indicating whether the repeater supports the first DCI format, information indicating whether the repeater supports monitoring the DCI of the first DCI format in the CSS, information indicating whether the repeater supports monitoring the DCI of the first DCI format in the USS, information indicating whether the repeater supports dynamic access link beam direction, and information indicating whether the repeater supports dynamic side control information. The capability information will be described in Example 2 below.

[0269] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0270] According to an embodiment of the present invention, by instructing the repeater beam using DCI in the first DCI format, the network device controls the repeater beam so that the beam used by the repeater when performing transmission (transmission of downlink / uplink signals) matches the beam of the terminal device receiving / transmitting the signal, thereby improving the effect of signal amplification / boosting, reducing interference to other devices in the network, and improving network throughput.

[0271] <Example 2> The present embodiment provides an information receiving method and will be explained from the repeater side. Explanations of the same content as in the first embodiment will be omitted.

[0272] 12 is a schematic diagram of an example of an information receiving method according to an embodiment of the present invention. As shown in FIG. 12, the method includes the following steps:

[0273] Step 1201: A repeater receives downlink control information transmitted by a network device, the downlink control information being in a first DCI format, the downlink control information including one or more first information fields for indicating beams, and / or one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing.

[0274] Note that the above-described FIG. 12 merely exemplifies an embodiment of the present invention and is not limited thereto. For example, the execution order of each step may be adjusted as appropriate, and some other steps may be added or some steps may be deleted. Those skilled in the art may appropriately modify the above content and are not limited to the description of the above-described FIG. 12.

[0275] For the first DCI format, the first information field, the second information field, the arrangement of the first information field and the second information field, the correspondence relationship, and the DCI payload, you may refer to Example 1, and the explanation will be omitted here.

[0276] The following specifically describes how the repeater receives DCI in the first DCI format (how the repeater determines the PDCCH candidate set for monitoring DCI).

[0277] In some embodiments, in an activated serving cell configured for PDCCH monitoring, the NCR-MT monitors a set of PDCCH candidates according to one or more CORESETs in the active downlink BWP of the corresponding SS sets, where monitoring means decoding each PDCCH candidate according to the DCIs of the monitored DCI format. Downlink control information is carried by the PDCCH candidates in the PDCCH candidate set.

[0278] In some embodiments, for a search space set s associated with CORESET p, slot n s,f μ n of the search space sets in CI PDCCH candidate m of aggregation level L of activated DL BWP of the serving cell corresponding to s,nCI (L) The corresponding CCE indexes are as follows:

[0279]

number

[0280] For any CSS, (outside 28) TIFF2026501649000056.tif9136.

[0281] About U.S.S. (outside 29) TIFF2026501649000057.tif12136, where Y p,-1 =n RNTI ≠0 and CORESET pmod3=0, A p =39827, CORESET pmod3=1, A p =39829, and for CORESET pmod3=2, A p = 39839, D = 65537, where n RNTI is the C-RNTI or the newly introduced RNTI mentioned above (for example, when the USS is used to transmit DCI of the first DCI format or the NCR-MT monitors DCI of the first DCI format in the USS, the CCE (starting CCE) index of the PDCCH candidate set is related to (equal to) the new RNTI).

[0282] where N CCE,p represents the number of CCEs in CORESET p, and these CCEs range from 0 to N CCE,p It has a number of -1.

[0283] where n CI is as follows:

[0284] For any CSS, n CI =0.

[0285] For USS, if the serving cell is scheduled from the same serving cell, n CI = 0 and if the carrier indication field is configured by CrossCarrierSchedulingConfig for NCR-MT, n CI is the value of the carrier indication field (corresponding to the serving cell).

[0286] m s,nCI (L) =0,…,M s,nCI (L)-1, where M s,nCI (L) is the number of nodes at aggregation level L in the search space set s that the NCR-MT is configured to monitor. CI is the number of PDCCH candidates of the serving cell corresponding to

[0287] For any CSS, M s,max (L) =M s,0 (L) is.

[0288] About USS, M s,max (L) is the sum of all configurations of aggregation level L in the search space set s. CI The largest M value s,nCI (L) Represents.

[0289] The repeater monitors the downlink control information in the first DCI format in a CSS and / or USS configured to monitor the first DCI format. Assuming that one CSS is configured to monitor DCI in the first DCI format, the repeater accordingly performs the above method: (Outside 30) TIFF2026501649000058.tif9136,n CI = 0, and the number of CCEs in CORESET p associated with the CSS is determined as N CCE,p = 32, and only two PDCCH candidates with aggregation level L = 8 are configured for DCI of the first DCI format, for example, as shown in FIG. 13, the NCR-MT monitors DCI of the first DCI format in PDCCH candidate 0 (consisting of CCEs 0 to 7) and PDCCH candidate 1 (consisting of CCEs 8 to 15).

[0290] In some embodiments, the method may further include a step of the repeater transmitting capability information to the network device. The capability information may or may not include fifth information indicating whether / how the repeater supports the first DCI format. The fifth information may include one or more of information indicating whether the repeater (hereinafter, the repeater may be replaced with NCR-MT, NCR-Fwd, or NCR) supports the first DCI format, information indicating whether the repeater supports monitoring DCI of the first DCI format in a CSS, information indicating whether the repeater supports monitoring DCI of the first DCI format in a USS, information indicating whether the repeater supports dynamic access link beam direction, and information indicating whether the repeater supports dynamic side control information.

[0291] In some embodiments, the fifth information may be defined in the protocol, and the fifth information may be defined as optional, mandatory, or optionally mandatory.

[0292] For example, optional means that different repeaters may selectively support a function or feature corresponding to the fifth information, and if supported, the corresponding fifth information is transmitted, and if not supported, the corresponding fifth information is not transmitted.

[0293] For example, mandatory means that the fifth information is mandatory and / or the function or feature corresponding to the fifth information is mandatory, all repeaters must support the function or feature corresponding to the fifth information, and / or the fifth information must be transmitted.

[0294] For example, conditional compulsion means that the fifth information is conditionally compulsory and / or the function or feature corresponding to the fifth information is conditionally compulsory, meaning that in certain circumstances the repeater must support the function or feature corresponding to the fifth information and / or the fifth information must be transmitted.

[0295] For example, if the operating frequency band of the repeater is in FR2, the fifth information is mandatory, and if the operating frequency band is in FR1, the fifth information may be optional or not mandatory.

[0296] Also, for example, if the repeater's operating frequency band is in FR2 (not in FR1) and does not support semi-static access link beam direction / configuration, the fifth information is mandatory; otherwise, the fifth information may be optional.

[0297] Also, for example, if the repeater does not support semi-static access link beam direction / configuration, the fifth information is mandatory, otherwise the fifth information may be optional.

[0298] In some embodiments, the above fifth information may not be defined (and accordingly, the capability information does not include the fifth information). By default, the repeater supports the DCI of the first DCI format by default, i.e., all repeaters support the DCI of the first DCI format, i.e., the DCI function or feature of the first DCI format is mandatory for the repeater.

[0299] FIG. 14 is a flowchart of information transmission between a network device and a repeater according to an embodiment of the present invention, which includes the following steps:

[0300] Step 1400: The network device sends a UE Capability Enquiry to the repeater.

[0301] Step 1401: The repeater sends capability information (UECapabilityInformation) to the network device.

[0302] Step 1402: The network device sends configuration information to the repeater.

[0303] Step 1403: The network device sends or does not send DCI in the first DCI format to the repeater.

[0304] In some embodiments, in order for the NCR-MT to correctly monitor and receive DCI in the first DCI format, the network device first needs to send some configuration information to the NCR-MT, including at least one of the above-mentioned first configuration information, search space configuration information, RNTI configuration, and CORESET configuration. Before that, in order to match the configuration sent by the network device to the terminal device UE with the capabilities supported by the NCR-MT, the NCR-MT may need to send some capability information related to its own supported capabilities to the network device. All or part of this configuration information and capability information can be sent / exchanged via RRC signaling, MAC signaling, or OAM. This information exchange may or may not result in transmission and reception of DCI in the first DCI format between the network device and the NCR-MT.

[0305] Steps 1401, 1402, and 1403 according to the embodiment of the present invention may be performed independently or in combination, and the embodiment of the present invention is not limited thereto. The capability information, configuration information, and details and transmission methods of the DCI in the first DCI format may refer to the above embodiments, and the description thereof will be omitted here.

[0306] Although the above only describes each step or process related to the present invention, the present invention is not limited thereto. The method according to the embodiment of the present invention may further include other steps or processes, and details of these steps or processes may be found in the related art.

[0307] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0308] According to an embodiment of the present invention, by instructing the repeater beam using DCI in the first DCI format, the network device controls the repeater beam so that the beam used by the repeater when performing forwarding matches the beam of the terminal device receiving / transmitting the signal, thereby improving the effect of signal amplification / boosting, reducing interference to other devices in the network, and improving network throughput.

[0309] Example 3 An embodiment of the present invention provides a repeater, which may be, for example, the above-mentioned NCR, a network device or terminal device having a forwarding function, or one or more elements or components configured in the NCR, the network device, or the terminal device.

[0310] 15 is a schematic diagram of an example of a repeater according to an embodiment of the present invention. The principle of the problem-solving of the repeater is similar to that of the method of embodiment 1, so that the specific implementation may refer to the method of embodiment 1, and redundant explanations of similar contents will be omitted.

[0311] As shown in FIG. 15, the repeater 1500 includes the following components:

[0312] The receiving unit 1501 receives downlink control information transmitted by a network device, the downlink control information being in a first DCI format, and including one or more first information fields for indicating beams, one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing.

[0313] For the first DCI format, the first information field, the second information field, the arrangement of the first information field and the second information field, the correspondence relationship, the DCI payload, and the method of receiving DCI in the first DCI format, reference may be made to Examples 1 and 2, and the description thereof will be omitted here.

[0314] 15 only exemplifies the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies such as bus connections can be used. The various components or modules described above may be implemented by hardware devices such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0315] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0316] According to an embodiment of the present invention, by instructing the repeater beam using DCI in the first DCI format, the network device controls the repeater beam so that the beam used by the repeater when performing forwarding matches the beam of the terminal device receiving / transmitting the signal, thereby improving the effect of signal amplification / boosting, reducing interference to other devices in the network, and improving network throughput.

[0317] Example 4 An embodiment of the present invention provides a network device.

[0318] 16 is a schematic diagram of an example of a network device according to an embodiment of the present invention. The principle of problem solving of the network device is the same as that of the method of embodiment 1, so that the specific implementation may refer to the method of embodiment 1, and redundant explanations of similar contents will be omitted.

[0319] As shown in FIG. 16, a network device 1600 according to an embodiment of the present invention includes the following components:

[0320] The transmitter 1601 receives downlink control information transmitted by a network device, the downlink control information being in a first DCI format, and the downlink control information includes one or more first information fields for indicating beams, one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing.

[0321] For the first DCI format, the first information field, the second information field, the arrangement of the first information field and the second information field, the correspondence relationship, the DCI payload, and the method of receiving DCI in the first DCI format, reference may be made to Examples 1 and 2, and the description thereof will be omitted here.

[0322] Although the above description only describes components or modules related to the present invention, the present invention is not limited thereto. The network device 1600 according to the embodiment of the present invention may further include other components or modules. For specific details of these components or modules, please refer to the related art.

[0323] Furthermore, for convenience of explanation, Figure 16 only exemplifies the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies such as bus connections can be used. The various components or modules described above may be implemented by hardware devices such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0324] The above-described embodiments are merely examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0325] According to an embodiment of the present invention, by instructing the repeater beam using DCI in the first DCI format, the network device controls the repeater beam so that the beam used by the repeater when performing forwarding matches the beam of the terminal device receiving / transmitting the signal, thereby improving the effect of signal amplification / boosting, reducing interference to other devices in the network, and improving network throughput.

[0326] <Example 5> An embodiment of the present invention provides a communication system. Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention. As shown in Fig. 1, a communication system 100 includes a network device 101, a repeater 102, and a terminal device 103. For simplicity, Fig. 1 illustrates only one network device, one repeater, and one terminal device as an example, but the embodiment of the present invention is not limited thereto.

[0327] In an embodiment of the present invention, existing services or services that can be implemented in the future can be performed between the network device 101 and the terminal device 103. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), highly reliable and low latency communication (URLLC), and vehicle-to-everything (V2X) communication. The repeater 102 is configured to perform the information receiving method described in the second embodiment, and the network device 101 is configured to perform the information transmitting method described in the first embodiment, the contents of which are incorporated herein and will not be described again here.

[0328] An embodiment of the present invention further provides an electronic device, which is, for example, a repeater or a network device.

[0329] 17 is a schematic diagram of an example of an electronic device according to an embodiment of the present invention. As shown in FIG. 17, the electronic device 1700 may include a processor 1710 (e.g., a central processing unit (CPU)) and a memory 1720, which is connected to the processor 1710. The memory 1720 may store various data and may further store an information processing program 1730, which is executed under the control of the processor 1710.

[0330] For example, the processor 1710 may execute a program to implement the information transmission method described in the first embodiment.

[0331] Also, for example, the processor 1710 may execute a program to implement the information receiving method described in the second embodiment.

[0332] Also, for example, the processor 1710 may execute at least one of steps 1400 to 1403 described in the second embodiment.

[0333] 17, electronic device 1700 may further include a transceiver 1740, an antenna 1750, and the like. The functions of the above components are similar to those of the prior art, and a description thereof will be omitted here. Note that electronic device 1700 does not need to include all of the units shown in FIG. 17. Electronic device 1700 may further include units not shown in FIG. 17, and prior art may be referenced.

[0334] An embodiment of the present invention further provides a computer-readable program, which, when executed in a network device, causes a computer to execute the information transmission method described in embodiment 1 in the network device.

[0335] An embodiment of the present invention further provides a storage medium having a computer-readable program stored therein, the program, when executed, causing a computer to execute the information transmission method described in embodiment 1 in a network device.

[0336] An embodiment of the present invention further provides a computer-readable program, which, when executed in a repeater, causes a computer to execute the information receiving method according to the second embodiment in the repeater.

[0337] An embodiment of the present invention further provides a storage medium having a computer-readable program stored thereon, the program, when executed, causing a computer to execute the information receiving method described in embodiment 2 in a repeater.

[0338] 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.

[0339] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in the drawings, or one or more combinations of the functional block diagrams, may correspond to each software module in a computer program flow or each hardware module. These software modules may correspond to each step shown in the drawings. These hardware modules may be implemented by implementing these software modules in hardware, for example, using a field programmable gate array (FPGA).

[0340] 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.

[0341] One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the figures may be implemented with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof for performing the functions described herein. One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the figures may be implemented with, for example, a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in combination with a DSP communication, or any other configuration.

[0342] 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.

[0343] Furthermore, the following supplementary notes are disclosed regarding the embodiments including the above examples. (Appendix 1) An information transmission method applied to a network device, comprising: A method comprising: a step in which a network device transmits downlink control information to a repeater, the downlink control information being in a first DCI format, and the downlink control information including one or more first information fields for indicating beams, and / or one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing. (Appendix 2) 2. The method of claim 1, wherein one first information field indicates one beam index, or indicates at most one beam index, or is used to indicate multiple beam indexes. (Appendix 3) 3. The method of claim 2, wherein the beam index includes a beam index corresponding to a beam and / or a beam index not corresponding to a beam. (Appendix 4) 2. The method of claim 1, wherein the bit values ​​of the first information field include bit values ​​with a corresponding beam index and / or bit values ​​without a corresponding beam index. (Appendix 5) 2. The method of claim 1, wherein the number of first information fields is predefined and / or configured or indicated by higher layer signaling. (Appendix 6) 2. The method of claim 1, wherein the bit width of the first information field is predefined and / or configured or indicated by higher layer signaling. (Appendix 7) 7. The method of claim 1 or 6, wherein when the downlink control information includes multiple first information fields, the bit widths of different first information fields are the same or different. (Appendix 8) 8. The method of claim 6 or 7, wherein the bit width of the first information field is related to the number of corresponding beam indices and / or the number of valid beam indices and / or the number of beams. (Appendix 9) The method of claim 1, wherein one second information field is used to indicate one time domain resource index, or to indicate at most one time domain resource index, or to indicate multiple time domain resource indexes. (Appendix 10) 10. The method of claim 1 or 9, wherein the second information field corresponds to a time domain resource table, the time domain resource table including one or more time domain resource configurations, each time domain resource configuration including one or more time domain resources or no time domain resources. (Appendix 11) 11. The method of claim 10, wherein one of the time domain resources is contiguous or non-contiguous. (Appendix 12) The method of claim 10, wherein the number of time domain resources included in each time domain resource configuration is the same or different. (Appendix 13) 13. The method of any of Supplementary Notes 9 to 12, wherein the time domain resource indexes include time domain resource indexes corresponding to time domain resources and / or time domain resource indexes not corresponding to time domain resources. (Appendix 14) 14. A method according to any one of Supplementary Notes 9 to 13, wherein the bit values ​​of the second information field include bit values ​​with a corresponding time domain resource index and / or bit values ​​without a corresponding time domain resource index. (Appendix 15) 2. The method of claim 1, wherein the number of second information fields is predefined and / or configured or indicated by higher layer signaling. (Appendix 16) 16. The method of claim 15, wherein the number of second information fields is related to the number of first information fields and / or the number of time domain resources included in the configuration in a time domain resource table. (Appendix 17) 2. The method of claim 1, wherein the bit width of the second information field is predefined and / or configured or indicated by higher layer signaling. (Appendix 18) 18. The method of claim 1 or 17, wherein when the downlink control information includes multiple second information fields, the bit widths of different second information fields are the same or different. (Appendix 19) 19. The method of claim 17 or 18, wherein the bit width of the second information field is related to the number of configurations of the corresponding time domain resource table and / or the number of time domain resource indexes and / or the number of valid time domain resource indexes. (Appendix 20) 20. The method of any of Supplementary Notes 1 to 19, wherein the order of each information field in the downlink control information includes all second information fields being arranged after or before all first information fields, or the second information fields and the first information fields being arranged alternately. (Appendix 21) 21. A method according to any one of Supplementary Notes 1 to 20, wherein the first information fields correspond one-to-one to the second information fields, or multiple first information fields correspond to one second information field, or one first information field corresponds to multiple second information fields. (Appendix 22) A beam indicated by one first information field corresponds to one time domain resource, and a beam indicated by a different first information field corresponds to a different time domain resource indicated by one second information field; or beams indicated by multiple first information fields correspond to the same time domain resource, and beams indicated by different first information fields among the multiple first information fields correspond to different frequency domain resources; or beams indicated by one first information field correspond to multiple time domain resources indicated by one second information field; or 22. The method of any of Supplementary Notes 1 to 21, wherein a beam indicated by one first information field corresponds to a time domain resource indicated by one second information field, and beams indicated by different first information fields correspond to time domain resources indicated by different second information fields, or beams indicated by multiple first information fields correspond to time domain resources indicated by the same second information field, and beams indicated by different first information fields among the multiple first information fields correspond to different frequency domain resources and / or different time domain resources indicated by the same second information field, or beams indicated by one first information field correspond to time domain resources indicated by multiple second information fields. (Appendix 23) 23. The method of any of Supplementary Notes 1 to 22, wherein the correspondence between the time domain resources indicated by the first information field and the time domain resources indicated by the second information field is determined based on an order of the first information field listed in the downlink control information, and / or whether the first information field indicates a beam, or whether it indicates a valid beam index, or whether it indicates a beam index, and / or an order of the time domain resources indicated by the second information field listed in a time domain resource table structure, and / or an order in the time domain of the time domain resources indicated by the second information field, and / or an order of the second information field listed in the downlink control information, and / or whether the second information field indicates a time domain resource, or whether it indicates a valid time domain resource index, or whether it indicates a time domain resource index. (Appendix 24) 24. The method of any of Supplementary Notes 1 to 23, wherein a first number of first information fields among all the first information fields indicate a beam, or indicate a valid beam index, or indicate a beam index, and one second information field indicates the first number of time domain resources, or one second information field indicates more than the first number of time domain resources. (Appendix 25) 24. The method of any of Supplementary Notes 1 to 23, wherein a first number of first information fields among all the first information fields indicate beams, or indicate valid beam indices, or indicate beam indices, and a second number of second information fields among all the second information fields indicate time domain resources, or indicate valid time domain resource indices, or indicate time domain resource indices, and the second number is equal to the first number, or the second number is greater than the first number, or the first number is greater than the second number. (Appendix 26) 26. A method according to any one of Supplementary Notes 1 to 25, wherein if the nth first information field indicates an invalid beam index, or does not indicate a beam, or does not indicate a beam index, the nth first information field and / or the n+1th first information field and subsequent first information fields are ignored by the repeater, and / or the nth second information field and subsequent second information fields are ignored by the repeater, and / or the nth second information field and subsequent second information fields indicate an invalid time domain resource index, or does not indicate a time domain resource, or does not indicate a time domain resource index. (Appendix 27) 26. A method according to any one of Supplementary Notes 23 to 25, wherein if the mth second information field indicates an invalid time domain resource index, or does not indicate a time domain resource, or does not indicate a time domain resource index, the mth second information field and / or m+1 and subsequent second information fields are ignored by the repeater, and / or the mth first information field and subsequent first information fields are ignored by the repeater, and / or the mth first information field and subsequent first information fields indicate an invalid beam index, or does not indicate a beam, or does not indicate a beam index. (Appendix 28) 23. The method of any of Supplementary Notes 1 to 22, wherein the payload size of the downlink control information is determined by a bit width of an information field included in the downlink control information, and / or is predefined and / or configured by higher layer signaling. (Appendix 29) 29. The method of claim 28, wherein the payload size of the downlink control information is greater than or equal to a predefined minimum value or configured by higher layer signaling and less than or equal to a predefined maximum value or configured by higher layer signaling. (Appendix 30) 29. The method of claim 28, wherein the maximum value is determined by the (maximum value of) bit width of an information field of the downlink control information and / or the (maximum value of) information field. (Appendix 31) 29. The method of claim 28, wherein the payload size of the downlink control information is the same as or different from the payload size of the downlink control information of the second DCI format. (Appendix 32) 32. The method of claim 31, wherein the downlink control information of the second DCI format is used to schedule PDSCH / PUSCH and / or to activate / deactivate a beam configuration (provided by higher layer signaling). (Appendix 33) A method according to any one of Supplementary Notes 1 to 32, wherein a CORSET and a search space associated with a search space in one or more search space sets for monitoring the downlink control information are configured in the same BWP or different BWPs. (Appendix 34) 34. The method of claim 33, wherein the one or more search space sets for monitoring the downlink control information include CSS sets and / or USS sets. (Appendix 35) 35. The method of claim 34, wherein the CSS set includes a Type3-PDCCH CSS set. (Appendix 36) 35. The method of claim 34, wherein the network device configures the repeater to monitor the downlink control information in a Pcell, a PScell, or an Scell. (Appendix 37) 37. The method of claim 36, wherein the CSS sets and / or USS sets for monitoring the downlink control information are in a Pcell, or the CSS sets and / or USS sets for monitoring the downlink control information are in a Pcell, a PScell, or an Scell, respectively. (Appendix 38) 35. The method of claim 34, wherein the CSS sets and / or USS sets for monitoring the downlink control information are used or not used to monitor other DCI formats different from the first DCI format. (Appendix 39) 39. The method of any of Supplementary Notes 1 to 38, further comprising the step of: the network device transmitting search space configuration information to the repeater, the search space configuration information including a fourth information field, the fourth information field being used to configure the repeater to monitor the downlink control information. (Appendix 40) 40. The method of claim 39, wherein the fourth information field includes information for configuring an aggregation level and / or information for configuring a number of PDCCH candidates. (Appendix 41) 21. The method of claim 20, wherein information fields in the downlink control information are mapped sequentially according to the order. (Appendix 42) 42. The method of any of claims 1 to 41, wherein a cyclic redundancy check (CRC) of the downlink control information is scrambled using a new RNTI, the new RNTI being configured for the repeater only. (Appendix 43) 43. The method of claim 42, wherein the CRC check bits are scrambled with each bit of the new RNTI. (Appendix 44) 44. The method of any of Supplementary Notes 1 to 43, wherein the PDCCH carrying the downlink control information is scrambled using a scrambling sequence, the scrambling sequence being initialized based on a first parameter and a second parameter, and / or a DMRS reference signal sequence of the PDCCH carrying the downlink control information is initialized based on the first parameter. (Appendix 45) 45. The method of claim 44, wherein if the network device configures scrambling ID information for a CORESET, the first parameter is determined based on the scrambling ID information, or if the downlink control information is transmitted in a CSS, the network device does not configure scrambling ID information for a CORESET and the first parameter is determined based on a cell ID. (Appendix 46) 45. The method of claim 44, wherein if the network device configures scrambling ID information for CORESET, the second parameter is provided by a C-RNTI, or if the downlink control information is transmitted in a CSS, the network device does not configure scrambling ID information for CORESET and the second parameter is 0. (Appendix 47) 47. The method of any one of Supplementary Notes 1 to 46, further comprising: a step in which the network device transmits first configuration information to the repeater, the first configuration information including information indicating the number of the first information fields, and / or information indicating a bit width of the first information fields, and / or information indicating the number of the second information fields, and / or information indicating a bit width of the second information field, and / or information indicating a payload size of the downlink control information, and / or information indicating an RNTI used by a CRC of the downlink control information. (Appendix 48) 48. The method of any of Supplementary Notes 1 to 47, further comprising a step of the network device receiving capability information transmitted by the repeater, the capability information including or not including fifth information indicating whether / how the repeater supports the first DCI format. (Appendix 49) The fifth information is Information indicating whether the repeater supports the first DCI format; Information indicating whether the repeater supports monitoring DCI of the first DCI format in the CSS; Information indicating whether the repeater supports monitoring DCI of the first DCI format in the USS; Information to indicate whether the repeater supports dynamic access link beam direction; and 49. The method of claim 48, including one or more of the information for indicating whether the repeater supports dynamic side control information. (Appendix 50) 48. The method of any one of Supplementary Notes 1 to 47, wherein the repeater supports the first DCI format by default. (Appendix 51) An information receiving method applied to a repeater, comprising: A method comprising: a step in which a repeater receives downlink control information transmitted by a network device, the downlink control information being in a first DCI format, and the downlink control information including one or more first information fields for indicating beams, and / or one or more second information fields for indicating time domain resources, and / or one or more third information fields for indicating subcarrier spacing. (Appendix 52) 52. The method of claim 51, wherein the repeater monitors a PDCCH candidate set in one or more CORESETs, the downlink control information being carried by PDCCH candidates in the PDCCH candidate set, and when the repeater monitors the downlink control information in the first DCI format in a USS, CCE indices of the PDCCH candidate set are associated with a new RNTI. (Appendix 53) 53. The method of claim 51 or 52, wherein the repeater monitors the downlink control information in the first DCI format at a CSS and / or USS configured to monitor the first DCI format. (Appendix 54) An information transmission method applied to a network device, comprising: the network device transmitting search space configuration information to the repeater, the search space configuration information including a fourth information field, the fourth information field being used to configure the repeater to monitor downlink control information in a first DCI format; and / or A method comprising: a step in which the network device transmits first configuration information to a repeater, the first configuration information including information indicating the number of the first information fields, and / or information indicating a bit width of the first information fields, and / or information indicating the number of the second information fields, and / or information indicating a bit width of the second information field, and / or information indicating a payload size of the downlink control information, and / or information indicating an RNTI used by a CRC of the downlink control information. (Appendix 55) An information receiving method applied to a repeater, comprising: receiving, by the repeater, search space configuration information transmitted by a network device, the search space configuration information including a fourth information field, the fourth information field being used to configure the repeater to monitor downlink control information in a first DCI format; and / or A method comprising: a step in which the repeater receives first configuration information transmitted by a network device, the first configuration information including information indicating the number of the first information fields, and / or information indicating a bit width of the first information fields, and / or information indicating the number of the second information fields, and / or information indicating a bit width of the second information field, and / or information indicating a payload size of the downlink control information, and / or information indicating an RNTI used by a CRC of the downlink control information. (Appendix 56) An information transmission method applied to a network device, comprising: A method comprising: a step in which the network device receives capability information transmitted by a repeater, the capability information including or not including fifth information indicating whether / how the repeater supports a first DCI format. (Appendix 57) An information receiving method applied to a repeater, comprising: A method comprising a step in which the repeater transmits capability information to a network device, the capability information including or not including fifth information indicating whether / how the repeater supports a first DCI format. (Appendix 58) A repeater comprising: a memory having a computer program stored therein; and a processor, the processor configured to execute the computer program to implement a method according to any one of appendices 51 to 53, 55 or 57. (Appendix 59) 57. A network device comprising: a memory having a computer program stored therein; and a processor, the processor configured to execute the computer program to implement a method according to any one of claims 1 to 50, 54 or 56.

Claims

1. A network device, A network device comprising: a transmitter that transmits downlink control information to a repeater, the downlink control information being in a first DCI format, and the downlink control information including one or more first information fields for indicating a beam, and / or one or more second information fields for indicating a time domain resource, and / or one or more third information fields for indicating a subcarrier spacing.

2. One first information field indicates one beam index, or indicates at most one beam index, or is used to indicate multiple beam indexes, and / or 2. The network device according to claim 1, wherein one second information field is used to indicate one time domain resource index, or to indicate at most one time domain resource index, or to indicate multiple time domain resource indexes.

3. The beam index includes a beam index corresponding to a beam and / or a beam index not corresponding to a beam, and / or The network device of claim 2 , wherein the time domain resource indexes include time domain resource indexes corresponding to time domain resources and / or time domain resource indexes not corresponding to time domain resources.

4. the bit values ​​of the first information field include bit values ​​with a corresponding beam index and / or bit values ​​without a corresponding beam index; and / or The network device of claim 1 , wherein the bit values ​​of the second information field include bit values ​​with a corresponding time domain resource index and / or bit values ​​without a corresponding time domain resource index.

5. the number of first information fields is predefined and / or configured or indicated by higher layer signaling, and / or The network device of claim 1 , wherein the number of the second information fields is predefined and / or configured or indicated by higher layer signaling.

6. the bit width of the first information field is predefined and / or configured or indicated by higher layer signaling, and / or The network device of claim 1 , wherein the bit width of the second information field is predefined and / or configured or indicated by higher layer signaling.

7. If the downlink control information includes multiple first information fields, the bit widths of different first information fields are the same or different, and / or The network device according to claim 1 , wherein when the downlink control information includes a plurality of second information fields, bit widths of different second information fields are the same or different.

8. the bit width of the first information field is related to the number of corresponding beam indices and / or the number of valid beam indices and / or the number of beams; and / or The network device according to claim 6 , wherein a bit width of the second information field is related to the number of configurations of a corresponding time domain resource table and / or the number of time domain resource indexes and / or the number of valid time domain resource indexes.

9. 2. The network device of claim 1, wherein the second information field corresponds to a time domain resource table, the time domain resource table including one or more time domain resource configurations, each time domain resource configuration including one or more time domain resources or no time domain resources.

10. The network device according to claim 9 , wherein the number of time domain resources included in each time domain resource configuration is the same or different.

11. 2. The network device according to claim 1, wherein an order of the information fields in the downlink control information includes arranging all second information fields after or before all first information fields, or arranging the second information fields and the first information fields alternately.

12. 2. The network device according to claim 1, wherein the first information field corresponds one-to-one with the second information field, or a plurality of the first information fields correspond to one of the second information fields, or a single first information field corresponds to a plurality of the second information fields.

13. A beam indicated by one first information field corresponds to one time domain resource, and beams indicated by different first information fields correspond to different time domain resources indicated by one second information field; or beams indicated by multiple first information fields correspond to the same time domain resource, and beams indicated by different first information fields among the multiple first information fields correspond to different frequency domain resources; or beams indicated by one first information field correspond to multiple time domain resources indicated by one second information field; or 2. The network device of claim 1, wherein a beam indicated by one first information field corresponds to a time domain resource indicated by one second information field, and beams indicated by different first information fields correspond to time domain resources indicated by different second information fields, or beams indicated by multiple first information fields correspond to time domain resources indicated by the same second information field, and beams indicated by different first information fields among the multiple first information fields correspond to different frequency domain resources and / or different time domain resources indicated by the same second information field, or beams indicated by one first information field correspond to time domain resources indicated by multiple second information fields.

14. 2. The network device according to claim 1, wherein a correspondence relationship between the time domain resource indicated by the first information field and the time domain resource indicated by the second information field is determined based on an order of the first information field listed in the downlink control information, and / or whether the first information field indicates a beam, or whether it indicates a valid beam index, or whether it indicates a beam index, and / or an order of the time domain resources indicated by the second information field listed in a time domain resource table configuration, and / or an order in the time domain of the time domain resources indicated by the second information field, and / or an order of the second information field listed in the downlink control information, and / or whether the second information field indicates a time domain resource, or whether it indicates a valid time domain resource index, or whether it indicates a time domain resource index.

15. 2. The network device of claim 1, wherein a first number of first information fields among all the first information fields indicate a beam, or indicate a valid beam index, or indicate a beam index, and one second information field indicates the first number of time domain resources, or one second information field indicates more than the first number of time domain resources.

16. 2. The network device of claim 1, wherein a first number of first information fields among all the first information fields indicate a beam, or indicate a valid beam index, or indicate a beam index, and a second number of second information fields among all the second information fields indicate a time domain resource, or indicate a valid time domain resource index, or indicate a time domain resource index, and the second number is equal to the first number, or the second number is greater than the first number, or the first number is greater than the second number.

17. 17. The network device of claim 16, wherein if the nth first information field indicates an invalid beam index, or does not indicate a beam, or does not indicate a beam index, the nth first information field and / or the n+1th first information field and subsequent first information fields are ignored by the repeater, and / or the nth second information field and subsequent second information fields are ignored by the repeater, and / or the nth second information field and subsequent second information fields indicate an invalid time domain resource index, or does not indicate a time domain resource, or does not indicate a time domain resource index.

18. 17. The network device of claim 16, wherein if the mth second information field indicates an invalid time domain resource index, or does not indicate a time domain resource, or does not indicate a time domain resource index, the mth second information field and / or m+1 and subsequent second information fields are ignored by the repeater, and / or the mth first information field and subsequent first information fields are ignored by the repeater, and / or the mth first information field and subsequent first information fields indicate an invalid beam index, or does not indicate a beam, or does not indicate a beam index.

19. 2. The network device according to claim 1, wherein a payload size of the downlink control information is determined by a bit width of an information field included in the downlink control information, and / or is predefined and / or configured by higher layer signaling.

20. A repeater, A repeater comprising: a receiver that receives downlink control information transmitted by a network device, the downlink control information being in a first DCI format, and the downlink control information including one or more first information fields for indicating a beam, and / or one or more second information fields for indicating a time domain resource, and / or one or more third information fields for indicating a subcarrier spacing.

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