Communication methods, transceivers, and network equipment

Abstract

Embodiments of the present invention provide a communication method, a transceiver, and network equipment, the communication method comprising the transceiver receiving a first MAC CE for indicating the backhaul link beam of the uplink, and the transceiver's transmission on the backhaul link employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

Description

[Technical Field]

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

[0002] Compared to conventional 3G and 4G systems, 5G systems offer wider bandwidth and higher data rates, and can support a wider variety of devices and vertical services.

[0003] Therefore, in addition to the conventional telecommunications frequency spectrum, 5G systems can also be deployed in new frequency spectra. The frequencies of these new frequency spectra are much higher than the conventional communication frequency spectra used by 3G and 4G systems. For example, 5G systems can be deployed in the millimeter-wave band (28GHz, 38GHz, 60GHz and above, etc.).

[0004] According to the propagation characteristics of wireless signals, the higher the frequency of the carrier in which the signal is located, the more severe the fading the signal encounters during propagation. Therefore, in actual deployments, 5G systems, especially those deployed in the millimeter-wave band, require methods to enhance cell coverage more than conventional 3G and 4G systems. How to better enhance the cell coverage of 5G systems is an urgent issue that needs to be addressed.

[0005] To better address coverage issues in the actual deployment of cellular mobile communication systems, a common deployment technique involves employing RF relays (RF relays / repeaters) to amplify and forward communication signals between terminal equipment (UEs) and network equipment. RF relays are widely used in the actual deployment of 3G and 4G systems. Generally speaking, an RF relay is a device that amplifies and forwards round-trip signals between devices in the RF domain. In other words, RF relays are non-regenerative relay nodes; they simply amplify and forward all received signals directly.

[0006] However, conventional RF transceivers cannot interact with other devices (e.g., network devices / terminal devices). Specifically, in terms of reception, conventional RF transceivers do not support measurement / demodulation / decoding of the transmitted signal, nor do they receive signals other than the transmitted signal. Furthermore, in terms of transmission, conventional RF transceivers only amplify and transmit signals, and do not support generating signals or transmitting generated signals. Therefore, the transmission activities of conventional RF transceivers are not controlled by the network (e.g., network devices).

[0007] The above-mentioned introduction of background art is intended to clearly and completely explain the proposed technical aspects of the present invention and to facilitate understanding by those skilled in the art. These technical aspects, as described in the background art of the present invention, should not be construed as being well-known to those skilled in the art. [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] 3GPP® Rel-18 proposes a scheme for network-controlled repeaters (NCRs) that transfer signals between network devices and terminal devices to enhance NR coverage. Because NCRs can communicate directly with network devices via a control link, the network can control the NCR's forwarding operations to some extent.

[0009] The inventors have discovered the following: Regarding the NCR (Network Controlled Transmitter), current discussions suggest that Rel-18 will introduce two new MAC CEs (Media Access Control Control Elements) for indicating the backhaul link beam: the NCR Downlink Backhaul Link Beam Indication MAC CE and the NCR Uplink Backhaul Link Beam Indication MAC CE. However, there is currently no solution to how to specifically indicate the backhaul link beam and how the NCR will adopt the indicated backhaul link beam to perform the transmitter. For example, in the case of a non-unified TCI state, i.e., when the transmitter does not support a unified TCI state or when a unified TCI state is not set, how can the uplink backhaul link beam be indicated and / or determined?

[0010] To solve at least one of the above-mentioned problems, embodiments of the present invention provide a communication method, a transceiver, and network equipment. [Means for solving the problem]

[0011] According to one aspect of the embodiments of the present invention, a transfer device is provided, which is, A mobile terminal that receives a first MAC CE to direct the backhaul link beam of the uplink; and Including the transfer unit, The transmission over the backhaul link of the aforementioned transfer unit employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

[0012] According to another aspect of the embodiments of the present invention, a transfer device is provided, which is, A mobile terminal that receives a first MAC CE and / or a second MAC CE to indicate the backhaul link beam of the uplink; and Including the transfer unit, The transmission over the backhaul link of the transfer unit employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE and / or the second MAC CE. [Effects of the Invention]

[0013] The advantageous effects of the embodiments of the present invention are at least as follows: Since the transceiver receives a first MAC CE and / or a second MAC CE to indicate the backhaul link beam of the uplink, the transmission on the backhaul link can employ spatial filters corresponding to the TCI state or SRI provided by the first MAC CE and / or the second MAC CE. This makes it possible to clarify the spatial filters used by the transmission on the backhaul link and improve network performance.

[0014] Specific embodiments of the present invention will be disclosed in detail by referring to the following description and drawings, and will show embodiments in which the principles of the present invention can be employed. However, the embodiments of the present invention are not limited to these in scope. Embodiments of the present invention may include various changes, modifications and substitutions within the scope of the attached claims.

[0015] Furthermore, features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, combined with or substituting features in other embodiments.

[0016] When used herein, terms such as “contains / have” refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief explanation of the drawing]

[0017] The elements and features described in one drawing or one embodiment of the present invention can be combined with the elements and features shown in one or more other drawings or embodiments. Also, in the drawings, like reference numerals denote corresponding parts in several drawings and are also used to denote corresponding parts used in multiple embodiments.

[0018] The included drawings are used to provide a further understanding of the embodiments of the present invention, which form part of the specification, illustrate the implementation manners of the present invention, and are used to interpret the principles of the present invention together with the textual description. As is clear, the drawings in the following description are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative efforts. [Figure 1] It is a diagram showing a conceptual model of a communication system in an embodiment of the present invention. [Figure 2] It is a diagram showing a communication method in an embodiment of the first aspect of the present invention. [Figure 3] It is a diagram showing a first MAC CE in an embodiment of the present invention. [Figure 4] It is a diagram showing a first MAC CE in an embodiment of the present invention. [Figure 5] It is a diagram showing a first MAC CE in an embodiment of the present invention. [Figure 6] It is a diagram showing a first MAC CE in an embodiment of the present invention. [Figure 7] It is a diagram showing a first MAC CE in an embodiment of the present invention. [Figure 8] It is a diagram showing a first MAC CE in an embodiment of the present invention. [Figure 9] It is a diagram showing a communication method in an embodiment of the second aspect of the present invention. [Figure 10] It is a diagram showing a communication method in an embodiment of the third aspect of the present invention. [Figure 11] It is a diagram showing another communication method in an embodiment of the third aspect of the present invention. [Figure 12] It is a diagram showing a transmitter in an embodiment of the present invention. [Figure 13] This figure shows another transporter in an embodiment of the present invention. [Figure 14] This figure shows a network device in an embodiment of the present invention. [Figure 15] This is a configuration diagram of a network device in an embodiment of the present invention. [Figure 16] This is a diagram showing the configuration of a transfer device in an embodiment of the present invention. [Modes for carrying out the invention]

[0019] The aforementioned and other features of the present invention will become clear by referring to the attached drawings and the following description. While the specification and drawings disclose specific embodiments of the present invention, these represent only a limited number of embodiments in which the principles of the present invention can be employed. It should be understood that the present invention is not limited to the described embodiments, but rather includes all modifications, variations, and substitutions within the scope of the attached claims.

[0020] 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 NR (New Radio), LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (Wideband Code Division Multiple Access), HSPA (High-Speed ​​Packet Access), etc.

[0021] Furthermore, communication between devices in a communication system may be carried out according to any communication standard, and may include, but is not limited to, the following communication standards: namely, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communication standards.

[0022] In embodiments of the present invention, the term "network device" refers, for example, to a device in a communication system that connects terminal devices to a communication network and provides services to said terminal devices. Network devices may include, but are not limited to, the following: "nodes" and / or "donors" in the IAB architecture, base stations (BS), access points (AP), transmission and reception points (TRP), broadcast transmitters, mobile management entities (MME), network gateways, servers, radio network controllers (RNC), base station controllers (BSC), etc.

[0023] Among these, base stations may include, but are not limited to, Node B (NodeB or NB), Evolutionary Node B (eNodeB or eNB), 5G base stations (gNB), and may also include RRH (Remote Radio Head), RRU (Remote Radio Unit), relay, or low-power nodes (e.g., femto, pico). Furthermore, the term “base station” may include some or all of these functions, and each base station can provide communication coverage to a specific geographical area. For example, a 5G base station gNB may include one gNB CU and one or more gNB DUs, where the CU / DU is a logical node of the gNB having some of the functions of the gNB. The term “cell” may refer to a base station and / or the area it covers, which is determined by the context in which the term is used.

[0024] In embodiments of the present invention, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer to devices that access a communication network via network equipment and receive services from the network. User equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), or station. For example, it may be terminal equipment served by an IAB node or IAB donor under an IAB architecture.

[0025] User devices may include, but are not limited to, the following: cellular phones, PDAs (Personal Digital Assistants), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smartwatches, digital cameras, etc.

[0026] Furthermore, in scenarios such as IoT (Internet of Things), user devices may also be monitoring or measuring devices or equipment, and may include, but are not limited to, the following: machine-type communication (MTC) terminals, in-vehicle communication terminals, D2D (device-to-device) terminals, M2M (machine-to-machine) terminals, etc.

[0027] In embodiments of the present invention, existing business operations (traffic / services) or future business operations can be transmitted between the network device and the terminal device. For example, these operations may include, but are not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), URLLC (Ultra-Reliable and Low-Latency Communication), etc.

[0028] Furthermore, the terms “network side” or “network device side” refer to the network side, which may be a base station or include one or more network devices as described above. The terms “user side” or “terminal side” or “terminal device side” refer to the user or terminal side, which may be a UE or include one or more terminal devices as described above.

[0029] Figure 1 shows a conceptual model of the NCR in an embodiment of the present invention. As shown in Figure 1, the NCR 102 is installed between the network device 101 and the terminal device 103. The NCR 102 may include two modules / components, namely, the mobile terminal of the transceiver (NCR-MT) and the transceiver's forwarding unit (NCR-Fwd). The NCR-Fwd may also be called the routing unit of the NCR (NCR-RU). The NCR-MT is used to communicate (interact with information) with the network device 101, and the NCR-Fwd is used to forward round-trip signals between the network device 101 and the terminal device 103. The NCR-MT and NCR-Fwd are functional entities, and their functions may be realized by the same or different hardware modules.

[0030] As shown in Figure 1, the NCR 102 in the embodiment of the present invention may have three links: a control link (C-link), a backhaul link (BH link) for forwarding, and an access link (AC link (also called NCR-UE link)). Of these, the C-link is used for communication between the NCR 102 and the network device 101. The BH link is used for the NCR 102 to receive forwarding signals from the network device 101, or to forward signals from the terminal device 103 to the network device 101. The AC link is used for the NCR 102 to forward signals from the network device 101 to the terminal device 103, or to receive forwarding signals from the terminal device 103. Specifically, the NCR-MT communicates with the network device 101 via the C-link, and the NCR-Fwd forwards signals via the BH link and AC link. Furthermore, as shown in Figure 1, there may be an additional access link between the network device 101 and the terminal device 103, referred to as a UE access link, and this UE access link may or may not pass through the NCR 102.

[0031] In embodiments of the present invention, the transceiver can communicate with network equipment, receive communication channels / signals transmitted by the network equipment, and obtain information transmitted by the network equipment to the transceiver by demodulating / decoding the channels / signals. Hereinafter, this signal processing process will be referred to as "communication." The transceiver can further transfer channels / signals transmitted between network equipment and terminal equipment, and the transceiver can perform processing such as amplification on the channels / signals without demodulating / decoding them. Hereinafter, this signal processing process will be referred to as "transfer." "Communication" and "transfer" are collectively referred to as "transmission." Also, "transmitting or receiving over an AC (or BH) link" may be equivalent to "transferring over an AC (or BH) link," and "transmitting or receiving over a control link" may be equivalent to "communicating over a control link." These terms are merely illustrative and do not limit the present invention. In some cases, "transfer unit" can be replaced with "transferring act."

[0032] In embodiments of the present invention, a transponder may further be described as a network-controlled transponder (NCR), repeater, RF transponder, relay, RF relay; or a repeater node, transponder node, relay node; or a smart repeater, smart transponder, smart relay, smart repeater node, smart transponder node, smart relay node, or smart relay node, but the present invention is not limited thereto.

[0033] In embodiments of the present invention, the network device may be a device in the serving cell of a terminal device, a device in the cell where the transceiver is located, a device in the serving cell of the transceiver, or the parent node of the transceiver, but the present invention does not limit the name of the transceiver. Any device capable of realizing the above-described functions is included in the scope of the transceiver of the present invention.

[0034] In the embodiments of the present invention, "multiple" refers to at least two, or two or more.

[0035] In the embodiments of the present invention, predefined means that it is specified in a standard (protocol), or that it can be determined based on rules specified in a standard, and does not require any additional settings.

[0036] The following describes various embodiments of the present invention in conjunction with the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0037] <Example of the first side view> An embodiment of the present invention provides a communication method, which will be described from the perspective of the transceiver.

[0038] Figure 2 shows a communication method in an embodiment of the present invention. As shown in Figure 2, the method includes the following, namely, 201: The transceiver receives the first MAC CE to direct the backhaul link beam of the uplink; and 202: Transmission on the backhaul link of the transporter employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

[0039] Figure 2 above is merely illustrative to illustrate an embodiment of the present invention, and the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above description without being limited to the description in Figure 2.

[0040] In the embodiment described above, after the transponder receives a first MAC CE to indicate the backhaul link beam of the uplink, the transmission on that backhaul link employs a spatial filter corresponding to the TCI state or SRI provided (or indicated) by the first MAC CE. This clarifies the spatial filter used by the transmission on the backhaul link and improves network performance.

[0041] In the embodiments described above, the first MAC CE is, for example, the aforementioned NCR Uplink Backhaul Beam Indication MAC CE, but the present invention is not limited to this, and other MAC CE names may also be used.

[0042] In the embodiments described above, the TCI state is, for example, a joint TCI state or a UL TCI state.

[0043] In some embodiments, the SRI is used to provide a first reference resource and / or first reference signal for determining / acquiring spatial relationships for the uplink of a backhaul link. Uplink transmission of the backhaul link can use a spatial filter corresponding to the first reference resource and / or first reference signal provided by the SRI. In other words, the spatial filter corresponding to the SRI described above is a spatial filter corresponding to the first reference resource or first reference signal indicated by the SRI. Of these, the spatial filter corresponding to the first reference resource and / or first reference signal refers, for example, to a spatial filter for receiving the first reference resource and / or first reference signal (for example, when the first reference resource and / or first reference signal is a downlink resource or downlink reference signal (e.g., SSB, NZP CSI-RS resource)), or to a spatial filter for transmitting the first reference resource and / or first reference signal (for example, when the first reference resource and / or first reference signal is an uplink resource or uplink reference signal (e.g., SRS resource, PUCCH resource)).

[0044] In the embodiments described above, SRI is, for example, an SRS resource, and / or an SRS resource indicator, and / or an SRS resource identifier, and / or an SRS resource set, and / or an SRS resource set indicator, and / or an SRS resource set identifier, and / or a PUCCH resource, and / or a PUCCH resource indicator, and / or a PUCCH resource identifier, and / or a PUCCH resource set, and / or a PUCCH resource set indicator, and / or a PUCCH resource set identifier, and / or a PUCCH resource group, and / or a PUCCH resource group indicator, and / or a PUCCH resource group identifier, and / or spatial relationship information, and / or a spatial relationship information indicator and / or a spatial relationship information identifier. That is, SRI in operation 202 may be replaced with any one or more of these, but the present invention is not limited to these, and SRI may be of other types of concepts.

[0045] In the embodiments described above, the spatial relation information may indicate the first reference resource and / or the first reference reference signal (reference RS), and / or the spatial relation information may include an SSB index and / or an NZP CSI-RS resource index and / or an SRS resource identifier, but the present invention is not limited to these.

[0046] In the embodiments described above, the first reference resource and / or first reference signal may include, for example, a PUCCH resource and / or an SSB and / or an NZP CSI-RS resource and / or an SRS resource, but the present invention is not limited to these.

[0047] In some embodiments, when the transporter does not transmit simultaneously on the backhaul link and the control link, the transporter's transmission on the backhaul link employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE. In some embodiments, when the transporter transmits simultaneously on the backhaul link and the control link, the spatial filter for transmission on the backhaul link is the same as the spatial filter for transmission on the control link. In other words, when the transporter transmits only on the backhaul link after receiving the first MAC CE, the backhaul link employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE, and when the transporter transmits simultaneously on the backhaul link and the control link, the transporter employs the same spatial filter as the control link, and the spatial filter employed by the control link may be the same as or different from the spatial filter corresponding to the TCI state or SRI provided by the first MAC CE. This further clarifies that the spatial filters employed by transmissions on the backhaul link in different cases after receiving the first MAC CE may be different, and this may be related to whether or not it transmits simultaneously with the control link.

[0048] In some embodiments, the information fields (information areas) included in the first MAC CE described above are fixed; for example, the first MAC CE includes only the first information field. The present invention is not limited thereto, and the information fields included in the first MAC CE may be variable. For example, when a unified TCI state is set on the transporter, or when a unified TCI state type (unifiedTCI-StateType) is set, the first MAC CE includes the first information field. When a unified TCI state is not set on the transporter, or when a unified TCI state type (unifiedTCI-StateType) is not set, or when the transporter does not support a unified TCI state (i.e., in a non-unified TCI state), the first MAC CE includes the first information field and the second information field.

[0049] In the embodiments described above, the first information field is used to indicate the uplink beam for backhaul link transmission, and for example, the first information field may be “Uplink TCI state ID or SRI” or “TCI state ID or SRI” or “unified TCI state ID or SRI,” but the present invention is not limited to these.

[0050] In the above-described embodiment, the relevant content of the second information field will be explained later.

[0051] In some embodiments, the first MAC CE described above has a fixed size, for example, the first MAC CE contains only one octet, and the one octet contains 8 bits. The present invention is not limited thereto, and the first MAC CE described above may have a variable size, for example, in the case of a unified TCI state or when a unified TCI state type (unifiedTCI-StateType) is set, the first MAC CE contains only one octet, and in the case of a non-unified TCI state or when a unified TCI state type (unifiedTCI-StateType) is not set, the first MAC CE contains two octets.

[0052] Figure 3 shows an example of a first MAC CE. In the example in Figure 3, the first MAC CE includes a first information field and a reserved bit. As shown in Figure 3, the first MAC CE has a fixed size and consists of one octet, of which "R" is the reserved bit and "Uplink TCI state ID or SRI" is the first information field.

[0053] The example in Figure 3 is illustrative, and the present invention is not limited thereto. The first MAC CE may include a first information field and / or a second information field and / or other information fields (for example, referred to as a third information field) and / or spare bits, etc.

[0054] In some embodiments, when the transceiver is set to a unified TCI state type of “joint” (i.e., unifiedTCI-StateType=joint) and / or a joint TCI state is set, i.e., for the unified TCI state type of joint, the first MAC CE includes an identifier for one joint TCI state.

[0055] In the embodiment described above, when a unifiedTCI-StateType with a value of joint is set in the transporter (e.g., NCR or NCR-MT), the first MAC CE (e.g., the first information field) includes an identifier for one joint TCI state (e.g., TCI state ID or TCI-StateId).

[0056] In the example described above, setting a unifiedTCI-StateType with a value of joint on the transporter may also mean setting a unifiedTCI-StateType with a value of joint on the first serving cell (e.g., Pcell) of the transporter (e.g., NCR or NCR-MT). The present invention is not limited thereto.

[0057] In the above embodiment, the joint TCI state may be the (joint)TCI state of the active DL BWP, or it may be the (joint)TCI state set by certain configuration information (referred to as the first configuration information) in the active DL BWP. The first configuration information is used to set the joint TCI state and includes, for example, dl-OrJoint-TCI-State-ToAddModList and / or dl-OrJoint-TCI-State-ToReleaseList.

[0058] In the above example, the active DL BWP is, for example, the active DL BWP of the control link or NCR-MT, or, for example, the active DL BWP of the primary cell (Pcell) of the control link or NCR-MT, or, for example, the active DL BWP of the primary cell (Pcell).

[0059] Figure 4 shows the structure of the first MAC CE in the embodiment described above. As shown in Figure 4, the first MAC CE includes a first information field "Uplink TCI state ID or SRI" and a spare bit "R", and the corresponding protocol may be described as shown in [Table 1] or [Table 2] below.

[0060] [Table 1]

[0061] [Table 2] In some embodiments, when the transceiver is set to a unified TCI state type of “separate” (i.e., unifiedTCI-StateType=separate) and / or an uplink TCI state is set (i.e., ul-TCI-StateList is set), i.e., for the unified TCI state type of separate, the first MAC CE includes an identifier for one UL TCI state.

[0062] In the embodiment described above, for example, if a transporter (e.g., NCR / NCR-MT) is set to unifiedTCI-StateType with a value of separate and / or ul-TCI-StateList, then the first MAC CE (e.g., the first information field) includes an identifier for one UL TCI state (e.g., TCI state ID or TCI-UL-State-Id).

[0063] In the above example, setting a unifiedTCI-StateType with the value "separate" in the transporter may also mean that the first serving cell of the transporter (e.g., Pcell) is set to a unifiedTCI-StateType with the value "separate" and / or has an ul-TCI-StateList set. The present invention is not limited to these.

[0064] In the embodiments described above, the UL TCI state may be the (UL)TCI state of an active UL BWP, or it may be the (UL)TCI state set by certain configuration information (referred to as second configuration information) in the active UL BWP. The second configuration information is used to set the UL TCI state and is, for example, ul-TCI-StateList, but is not limited to this.

[0065] In the above example, the active UL BWP is, for example, the active UL BWP of the control link or NCR-MT, or, for example, the active UL BWP of the primary cell (Pcell) of the control link or NCR-MT, or, for example, the active UL BWP of the primary cell (Pcell).

[0066] Figure 5 shows the structure of the first MAC CE in the embodiment described above. As shown in Figure 5, the first MAC CE includes a first information field "Uplink TCI state ID or SRI" and a spare bit "R", and the corresponding protocol may be described as follows in [Table 3].

[0067] [Table 3] In some embodiments, when the transceiver (e.g., NCR or NCR-MT) does not support a unified TCI state and / or a unified TCI state is not set on the transceiver (i.e., unifiedTCI-StateType is not set), i.e., for non-unified TCI states, the above-mentioned SRI is provided by the first MAC CE.

[0068] In the above embodiment, unifiedTCI-StateType is used to indicate the same TCI state type to be set for a single serving cell. It is included in the ServingCellConfig, and when its value is separate, the serving cell is set with first configuration information (egdl-OrJointTCI-StateList) (used to set one or more DL TCI states) and second configuration information (egul-TCI-ToAddModList) (used to set one or more UL TCI states). When its value is joint, the serving cell is set with first configuration information (egdl-OrJointTCI-StateList) (used to set one or more joint TCI states for uplink and downlink).

[0069] For the time being, in the case of a non-unified TCI state (i.e., a transporter (e.g., NCR or NCR-MT) that does not support a unified TCI state and / or a unified TCI state is not set on the transporter), according to current discussions, the NCR Uplink Backhaul Beam Indication MAC CE is expected to provide one SRI. However, it is unclear what this SRI specifically is, how it provides a first reference resource or first reference signal, and how the MAC CE uses the SRI as an uplink beam indicator for the backhaul link, so in practice, it cannot support backhaul link beam indication in this case.

[0070] To solve the above-mentioned problems, embodiments of the present invention further provide several methods for supporting uplink beam indication of a backhaul link in the case of a non-unified TCI state. These are described below.

[0071] In one method, the provision of an SRI by a first MAC CE includes, namely, the first MAC CE designating an SRS resource and / or set of SRS resources. Thus, transmissions on the backhaul link employ spatial filters corresponding to the SRS resource and / or set of SRS resources provided by the first MAC CE.

[0072] In the method described above, a second reference resource and / or second reference signal corresponding to one SRS resource is indicated by RRC signaling and / or MAC signaling.

[0073] Among these, the RRC signaling includes, for example, an SRS configuration (SRS-Config), and a second reference resource and / or second reference signal corresponding to one SRS resource is provided / indicated by spatial relation information (spatialRelationInfo) corresponding to the SRS resource. The MAC signaling includes, for example, an Enhanced SP / AP SRS Spatial Relation Indication MAC CE or an SP Positioning SRS Activation / Deactivation MAC CE. A second reference resource and / or second reference signal corresponding to one SRS resource is indicated by one or more information fields (in the MAC signaling) corresponding to the SRS resource.

[0074] Of these, a second reference resource and / or second reference signal corresponding to one SRS resource is used to determine the spatial relationships for that SRS resource. Specifically, the spatial filter used to transmit the SRS resource or employed when transmitting an SRS on the SRS resource is the same as the spatial filter for transmitting or receiving the second reference resource and / or second reference signal. In other words, the spatial filter corresponding to the SRS resource is the same as the spatial filter corresponding to the second reference resource and / or second reference signal. Furthermore, the spatial filter corresponding to an SRS resource provided by the first MAC CE is the spatial filter corresponding to the second reference resource and / or second reference signal of that SRS resource.

[0075] In the embodiments described above, the second reference resource and / or second reference reference signal (reference RS) includes an SSB and / or an NZP CSI-RS resource and / or an SRS resource. Of these, the SRS resource is used, for example, for beam management, but is not limited to this. For example, a transporter (NCR-MT) receives an SRS configuration (SRS-Config) via RRC signaling and determines the SRS resource and / or SRS resource set based on the SRS configuration.

[0076] In the example above, SRS may be configured for each UL BWP (i.e., per UL BWP), meaning that each different UL BWP includes its own SRS setting.

[0077] In the example above, the SRS configuration may include settings related to the SRS resource set and settings related to the SRS resource list.

[0078] For example, you might have one or two SRS resource sets whose usage is "codebook," and one of those SRS resource sets whose usage is "codebook" might contain up to two or four SRS resources.

[0079] Additionally, for example, you may configure SRS resource sets whose purpose is non-codebook, and one such SRS resource set may contain up to four SRS resources.

[0080] The following describes how to direct an SRS resource using the first MAC CE and how to direct an SRS resource set using the first MAC CE.

[0081] <The first MAC CE directs the SRS resources.> In some embodiments, the SRS resource indicated by the first MAC CE is periodic, semi-persistent, or aperiodic. For example, the SRS resource indicated by the first MAC CE is always periodic, semi-persistent, or aperiodic, or may be periodic, semi-persistent, or aperiodic. In other words, accordingly, the value of resourceType (a higher-level parameter) associated with the first MAC CE is aperiodic, semi-persistent, or periodic. The aforementioned resourceType is found, for example, in SRS-Resource and / or SRS-ResourceSet.

[0082] In some embodiments, the SRS resource (required) indicated by the first MAC CE is: Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or It belongs to the preceding N or succeeding N SRS resources, which are arranged in ascending or descending order of their SRS resource identifiers.

[0083] The specific meaning of the implementation details will be explained later.

[0084] In the above embodiment, the SRS resource indicated by the first MAC CE is always periodic; in other words, only periodic SRS resources (or only SRS resources whose associated resourceType (higher-level parameter) value is periodic) can be used as a reference to determine the spatial filter employed by the uplink backhaul link, or to obtain spatial relationships about the uplink backhaul link.

[0085] In some embodiments, the SRS resource indicated by the first MAC CE is used for beam management, codebook, noncodebook, antenna switching, or PDC (propagation delay calculation). For example, the SRS resource indicated by the first MAC CE is always used for beam management, codebook, noncodebook, antenna switching, or PDC, or the SRS resource indicated by the first MAC CE may be used for beam management, codebook, noncodebook, antenna switching, or PDC. In other words, accordingly, the value of usage (higher layer parameter) associated with the first MAC CE is beamManagement, codebook, nonCodebook, or antennaSwitching, or the value of usagePDC (higher layer parameter) associated with the first MAC CE is true.

[0086] In the above embodiment, the SRS resource indicated by the first MAC CE is always used for beam management; in other words, only the SRS resources for beam management (or only the SRS resources whose associated usage (upper layer parameter) value is beamManagement) can be used as a reference to determine the spatial filter employed by the uplink backhaul link, or to obtain spatial relationships about the uplink backhaul link.

[0087] In some embodiments, the SRS resource indicated by the first MAC CE is configured by configuration information (e.g., provided by RRC signaling), for example, by third and / or fourth configuration information. The relevant contents of the third and fourth configuration information will be described later.

[0088] In some embodiments, the SRS resource indicated by the first MAC CE is located on an active uplink BWP (UL BWP). For example, it may be on the active UL BWP of a transceiver (NCR or NCR-MT) or the first serving cell of a C-link (e.g., PCell), but the present invention is not limited to these.

[0089] In some embodiments, the first MAC CE directs one or more SRS resources to an SRS resource.

[0090] In the embodiments described above, one or more SRS resources are configured by the third configuration information and / or the fourth configuration information described above. For example, the first MAC CE points to one SRS resource in the SRS resources configured by the third and / or fourth configuration information in the active UL BWP.

[0091] In some cases, the one or more SRS resources are all or part of the SRS resources in the SRS resource list. The aforementioned SRS resource list is configured, for example, by third-party configuration information. In other words, the first MAC CE indicates, among all or part of the SRS resources configured by the third-party configuration information, the SRS resources corresponding to the spatial filters that should be used for backhaul link transmissions.

[0092] In the above example, the third configuration information is, for example, srs-ResourceToAddModList and / or srs-ResourceToReleaseList and / or srs-PosResourceToAddModList-r16 and / or srs-PosResourceToReleaseList-r16, but the present invention is not limited to these.

[0093] In the example above, the first MAC CE indicates an SRS resource in all of the SRS resources configured by the third configuration information, or, for example, the first MAC CE indicates any one of the SRS resources configured by the third configuration information. For example, suppose that a total of M digits / bits in the first information field and / or other information fields of the first MAC CE indicate an SRS resource, in this case, at most 2 M In this case, the number of SRS resources in the SRS resource list set by the third configuration information is 2 M It should not be larger than this. This allows the first MAC CE to point to any one SRS resource configured by the third configuration information.

[0094] For example, the first MAC CE indicates one SRS resource to be configured by srs-ResourceToAddModList, srs-ResourceToAddModList can configure up to 64 SRS resources and set an SRS resource identifier for each configured SRS resource, and the six bits of the first information field of the first MAC CE (for example, the six on the far right) are used to indicate one SRS resource, for example, providing the SRS resource identifier for that one SRS resource.

[0095] In the example above, the first MAC CE points to an SRS resource among some of the SRS resources configured by the third configuration information. For example, the first MAC CE points to an SRS resource among some of the SRS resources configured by the third configuration information that satisfy a specific condition (depending on the specific configuration, all configured SRS resources may satisfy this specific condition).

[0096] For example, in the above example, one or more of the above SRS resources are: Having a specific resource type (for example, a specific resource type is set); and / or Having a specific purpose (for example, belonging to an SRS resource set in which a specific purpose is set); and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is below a certain threshold (referred to as the first value); and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of index (or from smallest to largest / largest to smallest index); and / or Belongs to the preceding N or following N SRS resources, arranged in ascending or descending order of SRS resource identifiers (or from smallest to largest / largest to smallest identifier).

[0097] In the examples above, specific resource types include, for example, periodic, semi-persistent, or aperiodic types, but the present invention is not limited thereto. Specific applications include, for example, beam management or codebooks or non-codebooks or antenna switching or PDC, but the present invention is not limited thereto. Specific spatial relational information includes, for example, that the corresponding second reference resource and / or second reference signal is in an active downlink BWP (DL BWP) or uplink BWP (UL BWP), but the present invention is not limited thereto.

[0098] In the example above, the SRS resource identifier is less than or equal to the first value, and for example, if a total of M digits / bits in the first information field and / or other information fields of the first MAC CE are used to indicate the SRS resource ID of one SRS resource, then the maximum ID that can be indicated is 2 M -1, in other words, the first MAC CE has an SRS resource ID of 2 M -1 or less indicates one SRS resource among one or more SRS resources. For example, the rightmost 4 bits in the first information field of the first MAC CE are used to provide an SRS resource ID, in which case it indicates one SRS resource among one or more SRS resources with an SRS resource ID of 15 or less.

[0099] In the example above, the specific SRS resource set may be predefined or indicated, but the present invention does not limit the specific method of indication. For example, the specific SRS resource set can be determined by a predefined rule (which does not require the introduction of corresponding new indication information) and does not require indication by new information.

[0100] In the example above, the specific SRS resource set is: Having a specific resource type; and / or Having a specific use; and / or Having a specific SRS resource set identifier; and / or Having a specific index; and / or This may also be indicated by the first MAC CE mentioned above.

[0101] In the examples above, specific uses are, for example, beam management, codebook, noncodebook, antenna switching, or PDC. For example, the value of usage (higher-layer parameter) associated with the SRS resource set is beamManagement, codebook, nonCodebook, or antennaSwitching, or the value of usagePDC (higher-layer parameter) associated with the SRS resource set is true. The present invention is not limited to these.

[0102] In the examples above, the specific resource type includes, for example, periodic, semi-persistent, or aperiodic types. For example, the value in resourceType (a higher-level parameter) (e.g., SRS-ResourceSet) associated with the SRS resource set is aperiodic, semi-persistent, or periodic. The present invention is not limited to these.

[0103] In the examples above, a specific SRS resource set identifier (srs-ResourceSetId) includes, for example, the largest or smallest SRS resource set identifier (srs-ResourceSetId), a relatively large or relatively small SRS resource set identifier (srs-ResourceSetId), or an SRS resource set identifier (srs-ResourceSetId) equal to a specific value (e.g., 0). The present invention is not limited to these.

[0104] In the above example, the specific index includes, for example, the first or last one in the SRS resource set configured by the fourth configuration information. The present invention is not limited to these examples.

[0105] For example, the specific SRS resource set includes the following, namely: The SRS resource set identifier (srs-ResourceSetId) set in the fourth configuration information of the active UL BWP of the first serving cell (e.g., Pcell) of the transporter (e.g., NCR / NCR-MT) is the smallest SRS resource set; and / or The SRS resource set for the codebook configured by the fourth configuration information in the active UL BWP of the first serving cell (e.g., Pcell) of a transporter (e.g., NCR / NCR-MT) (where txConfig=codebook and the SRS resource set configured by the fourth configuration information contains only one SRS resource set for the codebook); and / or The SRS resource set for non-codebooks configured by the fourth configuration information in the active UL BWP of the first serving cell (e.g., Pcell) of a transporter (e.g., NCR / NCR-MT) (txConfig=noncodebook, and the SRS resource set configured by the fourth configuration information contains only one SRS resource set for non-codebooks); and / or In the active UL BWP of the first serving cell (e.g., Pcell) of a transporter (e.g., NCR / NCR-MT), the SRS resource set for the codebook configured by the fourth configuration information is the one with the smallest (or largest) SRS resource set identifier (srs-ResourceSetId) (when txConfig=codebook and the SRS resource set configured by the fourth configuration information includes one or more SRS resource sets for codebooks); and / or In the active UL BWP of the first serving cell (e.g., Pcell) of a transporter (e.g., NCR / NCR-MT), the SRS resource set for non-codebooks configured by the fourth configuration information is the SRS resource set with the smallest (or largest) SRS resource set identifier (srs-ResourceSetId) (when txConfig=non codebook and the SRS resource set configured by the fourth configuration information includes one or more SRS resource sets for non-codebooks); and / or In the active UL BWP of the first serving cell (e.g., Pcell) of a transporter (e.g., NCR / NCR-MT), the fourth configuration information is set by the SRS resource sets for codebooks (set by the first RRC signaling) that have a smaller (or larger) SRS resource set identifier (srs-ResourceSetId) (when txConfig=codebook and the SRS resource sets set by the first RRC signaling include two SRS resource sets for codebooks); and / or In the active UL BWP of the first serving cell (e.g., Pcell) of a transporter (e.g., NCR / NCR-MT), the SRS resource sets for non-codebooks configured by the fourth configuration information are those with a smaller (or larger) SRS resource set identifier (srs-ResourceSetId) (when txConfig=non codebook and the SRS resource sets configured by the fourth configuration information include two SRS resource sets for non-codebooks); and / or The SRS resource set for beam management configured by the fourth configuration information in the active UL BWP of the first serving cell (e.g., Pcell) of the transporter (e.g., NCR / NCR-MT); and / or The SRS resource set for antenna switching configured by the fourth configuration information in the active UL BWP of the first serving cell (e.g., Pcell) of the transceiver (e.g., NCR / NCR-MT); and / or This is a periodic SRS resource set configured by the fourth configuration information in the active UL BWP of the first serving cell (e.g., Pcell) of a transporter (e.g., NCR / NCR-MT).

[0106] The above are merely examples, and the present invention is not limited to them.

[0107] For example, one or more SRS resources are the N SRS resources in the SRS resource list that are used for beam management (e.g., belonging to the beam management SRS resource set) (e.g., SRS resources where the upper layer parameter "usage" is set to "beamManagement"), before they are sorted in ascending order of SRS resource identifiers. Also, for example, one or more SRS resources are the N SRS resources in the SRS resource list that are used for periodic SRS resources, before they are sorted in ascending order of SRS resource identifiers. Also, for example, one or more SRS resources are the N SRS resources in the SRS resource list that are sorted in ascending order of SRS resource identifiers.

[0108] In the example above, if we assume that a total of M digits / bits are used in the first MAC CE (or the first information field and / or other information fields within it) to indicate the SRS resource, then N ≤ 2 M However, the present invention is not limited thereto.

[0109] In the above example, the first MAC CE or the first information field or other information fields therein may further include an SRS resource identifier (SRS-ResourceId), where the resource identifier may be the SRS resource identifier of an SRS resource set by the third configuration information in the active UL BWP of the first serving cell (e.g., Pcell) of the transporter (e.g., NCR / NCR-MT), but the present invention is not limited to these.

[0110] For example, the first information field of the first MAC CE contains 7 digits, of which M digits (e.g., the rightmost 6 or 4 digits) contain the SRS resource identifier, and the remaining (7-M) digits (e.g., 1 or 3 digits) are set to 0.

[0111] Figure 6 shows the structure of the first MAC CE in the embodiment described above. As shown in Figure 6, the first MAC CE includes a first information field "Uplink TCI state ID or SRI" and a spare bit "R", and the corresponding protocol can be described as follows in [Table 4].

[0112] [Table 4] In several other examples, the one or more SRS resources are all or part of the SRS resources in one or more SRS resource sets. The aforementioned SRS resource sets are configured, for example, by the fourth configuration information. In other words, the first MAC CE indicates the SRS resources corresponding to the spatial filters that should be used for backhaul link transmissions in all or part of the SRS resources in one or more SRS resource sets configured by the fourth configuration information.

[0113] In the example above, the fourth configuration information is, for example, the configuration information in the active UL BWP of the first serving cell (e.g., Pcell) of the transporter (e.g., NCR / NCR-MT), but is not limited to these.

[0114] In the example above, the fourth configuration information can configure one or more SRS resource sets. For example, the fourth configuration information can configure up to 16 SRS resource sets, but the present invention is not limited to these.

[0115] Among these, the fourth configuration information is, for example, srs-ResourceSetToAddModList and srs-ResourceSetToReleaseList in srs-Config / SRS-config in BWP-UplinkDedicated, and also, for example, srs-ResourceSetToAddModListDCI-0-2 and srs-ResourceSetToReleaseListDCI-0-2-r16, and also, for example, srs-PosResourceSetToAddModList-r16 and srs-PosResourceSetToReleaseList, but the present invention is not limited to these.

[0116] Each SRS resource set can be configured with its own resource type, purpose, etc. Resource types include, for example, periodic, semi-persistent, or aperiodic types, and purposes include, for example, beam management, codebook, non-codebook, antenna switching, or PDC. SRS resources in different SRS resource sets may or may not have common parts; in other words, different SRS resource sets may or may not contain the same SRS resources.

[0117] In the example above, the first MAC CE, for example, directs an SRS resource to one or more SRS resource sets (specific SRS resource sets) that satisfy certain conditions among the one or more SRS resource sets configured by the fourth configuration information.

[0118] The previous example described the specific SRS resource set, but its contents are merged here, and a detailed explanation is omitted.

[0119] <The first MAC CE directs the SRS resource set.> In some embodiments, the SRS resource set indicated by the first MAC CE is periodic, semi-persistent, or aperiodic. For example, the SRS resource set indicated by the first MAC CE is always periodic, semi-persistent, or aperiodic, or the SRS resource set indicated by the first MAC CE may be periodic, semi-persistent, or aperiodic. In other words, accordingly, the value of resourceType (higher-level parameter) associated with the first MAC CE (e.g., within SRS-ResourceSet) is aperiodic, semi-persistent, or periodic.

[0120] In some embodiments, the SRS resource set (required) specified by the first MAC CE is: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Having only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or It belongs to the preceding N or succeeding N SRS resource sets, which are arranged in ascending or descending order of their SRS resource set identifiers.

[0121] The specific meaning of the above content will be explained later.

[0122] In some embodiments, the SRS resource set indicated by the first MAC CE is for beam management, codebook, noncodebook, antenna switching, or PDC. For example, the SRS resource set indicated by the first MAC CE is always for beam management, codebook, noncodebook, antenna switching, or PDC, or the SRS resource set indicated by the first MAC CE may be for beam management, codebook, noncodebook, antenna switching, or PDC. In other words, accordingly, the value of usage (higher layer parameter) associated with the first MAC CE is beamManagement, codebook, nonCodebook, or antennaSwitching, or the value of usagePDC (higher layer parameter) associated with it is true.

[0123] In some embodiments, the SRS resource set indicated by the first MAC CE is configured by configuration information, for example, by the fourth configuration information described above.

[0124] In some embodiments, the SRS resource set directed by the first MAC CE is located on the active uplink BWP (UL BWP), for example, on the active UL BWP of the first serving cell of the transporter (e.g., PCell), but the present invention is not limited to these embodiments.

[0125] In some embodiments, the first MAC CE indicates an SRS resource set in one or more SRS resource sets, where one or more SRS resource sets are configured by the fourth configuration information described above. For example, the first MAC CE includes first information, which indicates an SRS resource set in one or more SRS resource sets configured by the fourth configuration information. In other embodiments, the first information is not included in the first MAC CE and may be carried by RRC signaling or other MAC CEs or physical layer signaling.

[0126] In the embodiments described above, when the first information is included in the first MAC CE, the first information is, for example, the first information field and / or other information fields of the first MAC CE, but the present invention is not limited to these.

[0127] In some cases, the first MAC CE indicates an SRS resource set in all or some of the SRS resource sets configured by the fourth configuration information.

[0128] In the example above, the first MAC CE indicates all SRS resource sets configured by the fourth configuration information, and for example, the first MAC CE can indicate any one SRS resource set configured by the fourth configuration information. For example, suppose a total of M digits / bits are used in the first MAC CE (or the first information field and / or other information fields within it) to indicate an SRS resource set, in which case there are up to 2 M In this case, the number of SRS resource sets specified by the fourth configuration information is 2. M It should not be larger than this. This allows the first MAC CE to direct the fourth configuration information to any one set of SRS resources configured.

[0129] In the example above, the first MAC CE indicates an SRS resource set in some of the SRS resource sets configured by the fourth configuration information. For example, the first MAC CE indicates an SRS resource set in some of the SRS resource sets configured by the fourth configuration information that satisfy a specific condition (depending on the specific configuration, all configured SRS resource sets may satisfy this specific condition).

[0130] For example, in the above example, one or more SRS resource sets are: Having a specific resource type (for example, a specific resource type is set); and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is below a certain threshold (referred to as the second value); and / or Belonging to the preceding N or following N SRS resource sets arranged in ascending or descending order of index (or from smallest to largest / largest to smallest index); and / or Belongs to the preceding N or succeeding N SRS resource sets, arranged in ascending or descending order of SRS resource set identifiers (or from smallest to largest / largest to smallest identifier).

[0131] In the example above, specific uses include, for example, beam management or codebook or non-codebook or antenna switching or PDC, in other words, the value of usage (higher-layer parameter) associated with the SRS resource set is beamManagement or codebook or nonCodebook or antennaSwitching, or the value of usagePDC (higher-layer parameter) associated with the SRS resource set is true.

[0132] In the example above, the specific resource type includes, for example, periodic, semi-persistent, or aperiodic types, in other words, the corresponding value of the resourceType (higher-level parameter) associated with the SRS resource set (e.g., within SRS-ResourceSet) is aperiodic, semi-persistent, or periodic.

[0133] In the example above, the specific spatial relationship setting includes, for example, the following: the spatial relationship information and / or second reference resource and / or second reference reference signal for all SRS resources (e.g., all SRS resources in one SRS resource set) are the same, for example, the reference signal for the corresponding spatial relationship is the first reference signal.

[0134] For example, the one or more SRS resource sets described above include the N SRS resource sets that are set by the fourth configuration information for beam management (for example, SRS resource sets where the upper layer parameter "usage" is set to "beamManagement"), arranged in ascending order of SRS resource set identifiers. Also, for example, it includes the N SRS resource sets that are set by the fourth configuration information for periodic SRS resource sets, arranged in ascending order of SRS resource set identifiers. Also, for example, it includes the N SRS resource sets that are set by the fourth configuration information, arranged in ascending order of SRS resource set identifiers.

[0135] In the example above, if we assume that a total of M digits / bits are used in the first MAC CE (or the first information field and / or other information fields within it) to indicate the SRS resource set, then N ≤ 2 M However, the present invention is not limited thereto.

[0136] In some embodiments, the same information field of the first MAC CE is used to indicate the SRS resource set and the SRS resource.

[0137] For example, the first MAC CE contains only the information used to indicate an SRS resource set (but not the information used to indicate an SRS resource). For example, the first MAC CE contains information indicating one SRS resource set, and the backhaul link transmission employs a spatial filter corresponding to that one SRS resource set or an SRS resource in that one SRS resource set. In this case, the one SRS resource set contains only one SRS resource, or the one SRS resource set contains multiple SRS resources, but all of the SRS resources have the same spatial relation settings, for example, the same reference signal for the corresponding spatial relation. Alternatively, the backhaul link transmission employs a spatial filter corresponding to a specific SRS resource in that one SRS resource set, for example, a spatial filter corresponding to the SRS resource with the smallest SRS resource identifier. In other words, a specific SRS resource in the set of SRS resources (for example, the SRS resource with the smallest SRS resource identifier) ​​is the SRS resource pointed to by the first MAC CE, or the first MAC CE indirectly points to a single SRS resource by pointing to a set of SRS resources.

[0138] In some embodiments, different information fields of the first MAC CE are used to indicate an SRS resource set and an SRS resource, respectively.

[0139] For example, the first MAC CE includes information for indicating an SRS resource set and information for indicating an SRS resource. The positional relationship of the information bits for indicating the SRS resource set and the SRS resource in the first MAC CE is described below.

[0140] For example, the first information field of the first MAC CE is used to indicate an SRS resource set and an SRS resource. In other words, an SRS resource set and an SRS resource are indicated by the same information field. For example, the bits in the first part of the first information field are used to indicate an SRS resource set (in one or more SRS resource sets), and the bits in the second part indicate an SRS resource (in the SRS resource set indicated by the bits in the first part). The bits in the first part may be before or after the bits in the second part.

[0141] Furthermore, for example, the second information field of the first MAC CE is used to indicate an SRS resource set in one or more SRS resource sets, and the first information field is used to indicate an SRS resource in the SRS resource set indicated by the second information field. In other words, SRS resource sets and SRS resources are indicated by different information fields. The first information field may be before or after the second information field.

[0142] In some embodiments, the first MAC CE indicates the SRS resource by indicating the SRS resource identifier. For example, the first information field of the first MAC CE includes the SRS resource identifier (or SRS-ResourceId) of a single SRS resource, and the first MAC CE indicates the SRS resource by indicating the identifier, but the present invention is not limited thereto.

[0143] In some embodiments, the first MAC CE indicates an SRS resource based on a mapping relationship between a bit value and one or more SRS resources (e.g., the index of the resource).

[0144] In the above embodiments, the bit value of the first MAC CE and the SRS resource indicated thereby may have the mapping relationships shown in the examples of [Table 5] (Table 1) to [Table 14] (Table 10) below, but the present invention is not limited thereto. Among them, "bit field mapped to index" is the bit value (converted to a decimal number), and "SRI (s) " is the SRS resource identifier or the SRS resource index, where the index refers to which SRS resource in the set; "N SRS " is the quantity of the SRS resource.

[0145] [Table 5]

[0146] [Table 6]

[0147] [Table 7]

[0148] [Table 8]

[0149] [Table 9]

[0150] [Table 10]

[0151] [Table 11]

[0152] [Table 12]

[0153] [Table 13]

[0154] [Table 14] In some embodiments, when the aforementioned bit values ​​of a single received first MAC CE correspond to multiple SRS resources, the spatial filter and / or second reference resource and / or second reference signal corresponding to the multiple SRS resources are the same, and / or the spatial filter employed by the backhaul link transmission and one or more of the multiple SRS resources (e.g., the SRS resource with the smallest or largest SRS resource identifier or index) are the same, in other words, one or more of the multiple SRS resources are the first reference resource and / or first reference signal of the backhaul link.

[0155] In some embodiments, the first MAC CE indicates an SRS resource set by indicating an SRS resource set identifier (or SRS-ResourceSetId).

[0156] In some embodiments, the first MAC CE indicates an SRS resource set based on a mapping relationship between bit values ​​and one or more SRS resource sets.

[0157] In another method, the first MAC CE providing SRI includes, namely, the first MAC CE designating a PUCCH resource and / or PUCCH resource group and / or PUCCH resource set. Thus, transmissions on the backhaul link employ spatial filters corresponding to the PUCCH resource and / or PUCCH resource group and / or PUCCH resource set provided by the first MAC CE.

[0158] In the method described above, the third reference resource and / or third reference signal corresponding to the PUCCH resource are predefined and / or indicated.

[0159] Among these, "predefined elements" include, for example, the SSB or SSB index selected in the random access process, while "indicated elements" include, for example, those indicated by RRC signaling and / or MAC signaling. Among these, RRC signaling includes, for example, PUCCH configuration (PUCCH-Config). MAC signaling includes, for example, PUCCH spatial relation activation / deactivation MAC CE, and / or Enhanced PUCCH Spatial Relation Activation / Deactivation MAC CE, and / or PUCCH spatial relation activation / deactivation for multiple TRP PUCCH repetition MAC CE.

[0160] For example, in the PUCCH configuration, spatialRelationInfoToAddModList and / or spatialRelationInfoToAddModListSizeExt-v1610 and / or spatialRelationInfoToAddModListExt-v1610 configure multiple spatial relation information, and for one PUCCH resource, the MAC CE described above activates one of these spatial relation information, thereby providing / indicating a third reference resource and / or third reference signal corresponding to that PUCCH resource by the activated spatial relation information.

[0161] Alternatively, for example, if only one spatial relationship information is set, then the third reference resource and / or third reference signal corresponding to the PUCCH resource will be provided / indicated by the set spatial relationship information.

[0162] In the embodiment described above, a third reference resource and / or third reference signal corresponding to a PUCCH resource are used to determine the spatial relationships for that PUCCH resource. Specifically, the spatial filter used for transmitting the PUCCH resource, or when transmitting a PUCCH with the PUCCH resource, is the same as the spatial filter for transmitting or receiving the third reference resource and / or third reference signal. In other words, the spatial filter corresponding to the PUCCH resource and the spatial filter corresponding to the third reference resource and / or third reference signal are the same. Furthermore, the spatial filter corresponding to a PUCCH resource provided by the first MAC CE is the spatial filter corresponding to the third reference resource and / or third reference signal of the PUCCH resource.

[0163] In the embodiments described above, the third reference resource and / or third reference reference signal (reference RS) includes an SSB and / or an NZP CSI-RS resource and / or an SRS resource. Of these, the SRS resource is used, for example, for beam management, but is not limited to this.

[0164] In the method described above, the first MAC CE may include, for example, a PUCCH resource identifier (PUCCH-ResourceId), a PUCCH resource group identifier (PUCCH-ResourceGroupId), or a PUCCH resource set identifier (PUCCH-ResourceSetId). The present invention is not limited to these.

[0165] Figure 7 shows the structure of the first MAC CE in the embodiment described above. As shown in Figure 7, the first MAC CE includes a first information field "Uplink TCI state ID or SRI" and a spare bit "R", and the corresponding protocol can be described as follows [Table 15].

[0166] [Table 15] In another method, the first MAC CE providing SRI includes, namely, the first MAC CE indicating spatial relation information (or spatial relation) and / or a first reference resource and / or a first reference signal. Thus, transmissions on the backhaul link employ a spatial filter corresponding to the reference signal contained in the spatial relation information provided by the first MAC CE.

[0167] In the method described above, SRI is, for example, spatial relational information.

[0168] In some embodiments, the first MAC CE indicates the spatial relationship information (or spatial relationship) by indicating a spatial relationship information (or spatial relationship) identifier and / or a first reference resource and / or a first reference signal.

[0169] For example, the first MAC CE indicates spatial relationship information by indicating a spatial relationship identifier and / or a resource or reference signal for spatial relationship / relation.

[0170] For example, the first MAC CE indicates a PUCCH spatial relation info ID (e.g., PUCCH-SpatialRelationInfoId or PUCCH-SpatialRelationInfoId-v1610).

[0171] Figure 8 shows the structure of the first MAC CE in the embodiment described above. As shown in Figure 8, the first MAC CE includes a first information field "Uplink TCI state ID or SRI" and a spare bit "R", and the corresponding protocol can be described as follows [Table 16].

[0172] [Table 16] Furthermore, for example, the first MAC CE indicates a resource or reference signal for a spatial relationship / relation, and such resource or reference signal includes, for example, an SSB, NZP CSI-RS, or SRS resource. For example, the first MAC CE includes an SSB index, an NZP CSI-RS resource index, or an SRS resource index, and may or may not include a BWP ID and / or a serving cell ID.

[0173] In several embodiments, the structure of the first MAC CE according to the embodiment of the present invention is as shown in Figures 3 to 8, and the first MAC CE can be described in the standard as follows [Table 17].

[0174] [Table 17] In some embodiments, NCR / NCR-MT / C-link supports or does not support the unified TCI state. Of these, NCR / NCR-MT / C-link supporting the unified TCI state includes the following: NCR / NCR-MT / C-link supports joint TCI and / or separate TCI. Also, NCR / NCR-MT / C-link not supporting the unified TCI state includes the following: NCR / NCR-MT / C-link does not support joint TCI and separate TCI. When NCR / NCR-MT / C-link supports joint TCI, NCR / NCR-MT / C-link transmits first capability information (unifiedJointTCI-r17) (to network equipment), and when NCR / NCR-MT / C-link supports separate TCI, NCR / NCR-MT / C-link transmits second capability information (unifiedSeparateTCI-r17) (to network equipment).

[0175] For example, the standard may include a description like the one in [Table 18] below.

[0176] [Table 18] In some embodiments, NCR / NCR-MT / C-link / NCR-Fwd / BH-link selectively supports (or may support, or may not support) (i) (uplink) backhaul link beam indication (first MAC CE or second MAC CE) for non-unified TCI states (or SRI-based), and / or selectively supports (ii) backhaul link beam indication (including joint and separate) for unified TCI states, and / or selectively supports (iii) backhaul link beam indication for joint unified TCI state types, and / or selectively supports (iv) backhaul link beam indication for separate unified TCI state types.

[0177] For example, if it supports (i) a backhaul link beam indication (uplink) for a non-unified TCI state, it receives a first MAC CE including SRI or a second MAC CE, in other words, it supports a first MAC CE including SRI or supports a second MAC CE. If it supports (ii) a backhaul link beam indication (including joint and separate) for a unified TCI state, it supports a backhaul link beam indication for the joint unified TCI state type and a backhaul link beam indication for the separate unified TCI state type, in other words, it supports a first MAC CE. If it supports (iii) a backhaul link beam indication for the joint unified TCI state type, in other words, it supports a first MAC CE including the joint TCI state. If it supports (iv) a backhaul link beam indication for the separate unified TCI state type, in other words, it supports a first MAC CE including the UL TCI state.

[0178] The capabilities described above relate to whether NCR / NCR-MT / C-link supports unified TCI states and / or what types of unified TCI states it supports.

[0179] For example, if NCR / NCR-MT / C-link does not support a unified TCI state, only (i) is selectively supported by NCR / NCR-MT / C-link / NCR-Fwd / BH-link. For example, NCR / NCR-MT / C-link / NCR-Fwd / BH-link selectively supports (i.e., may or may not support) (uplink) backhaul link beam indication (first MAC CE or second MAC CE) for non-unified TCI states (or SRI-based), i.e., selectively supports (i). In such cases, (ii), (iii), and (iv) described above are not supported.

[0180] Furthermore, for example, when NCR / NCR-MT / C-link supports a unified TCI state, (i), (ii), (iii), and (iv) are selectively supported by NCR / NCR-MT / C-link / NCR-Fwd / BH-link. For example, NCR / NCR-MT / C-link / NCR-Fwd / BH-link selectively supports (i.e., may or may not support) (uplink) backhaul link beam indication (first MAC CE or second MAC CE) for non-unified TCI states (or SRI-based), selectively supports backhaul link beam indication for joint unified TCI state types, i.e., selectively supports (iii), and selectively supports backhaul link beam indication for separate unified TCI state types, i.e., selectively supports (iv).

[0181] Furthermore, for example, if the NCR / NCR-MT / C-link supports the joint unified TCI state type but does not support the separate unified TCI state type, it may selectively support (i.e., support or not support) (uplink) backhaul link beam indication (first MAC CE or second MAC CE) for non-unified TCI states (or SRI-based), i.e., selectively support (i) and selectively support backhaul link beam indication for the separate unified TCI state type, i.e., selectively support (iv).

[0182] In some embodiments, the NCR / NCR-MT transmits third capability information (to network equipment) which is used to indicate that the NCR / NCR-MT / C-link / NCR-Fwd / BH-link supports one or more of (i), (ii), (iii), and (iv). For example, the range of values ​​for the third capability information includes {Rel-15 / 16 (non-unified TCI), Rel-17 (unified TCI), both}, where Rel-15 / 16 (non-unified TCI) indicates support for (i), Rel-17 (unified TCI) indicates support for (ii), and both indicates support for both (i) and (ii). Also, if the control link does not support unified TCI, the value of the third capability information can be set to only “Rel-15 / 16 (non-unified TCI)”, otherwise it may be set to any one of those values.

[0183] The embodiments described above are for illustrative purposes to illustrate embodiments of the present invention, but the present invention is not limited thereto, and appropriate modifications may be made based on the embodiments described above. For example, the embodiments described above may be used individually, or a combination of several of the embodiments described above may be used.

[0184] In the embodiment described above, after the transponder receives a first MAC CE to indicate the backhaul link beam of the uplink, the transmission on that backhaul link employs a spatial filter corresponding to the TCI state or SRI provided (or indicated) by the first MAC CE. This clarifies the spatial filter used by the transmission on the backhaul link and improves network performance.

[0185] <Example of the second aspect> An embodiment of the present invention provides a communication method, which will be described from the perspective of the transceiver. Content identical to that of the embodiment in the first aspect will be omitted.

[0186] Figure 9 shows a communication method in an embodiment of the present invention. As shown in Figure 9, the method includes the following, namely, 901: The transceiver receives a first MAC CE or second MAC CE to indicate the backhaul link beam of the uplink; and 902: Transmission on the backhaul link of the transceiver employs a spatial filter corresponding to the TCI state provided by the first MAC CE or the SRI provided by the second MAC CE.

[0187] Figure 9 above is merely illustrative to illustrate an embodiment of the present invention, and the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above description without being limited to the description in Figure 9.

[0188] In the embodiment described above, after the transponder receives a first MAC CE and / or a second MAC CE to indicate the backhaul link beam of the uplink, the transmission on that backhaul link employs a spatial filter corresponding to the TCI state or SRI provided (or indicated) by the first MAC CE and / or the second MAC CE. This clarifies the spatial filter used by the transmission on the backhaul link and improves network performance.

[0189] In embodiments of the present invention, the identifiers and / or sizes of the first MAC CE and the second MAC CE are different, and for example, the values ​​of the logical channel identifiers (LCID or eLCID) corresponding to the first MAC CE and the second MAC CE are different.

[0190] In some embodiments, the first MAC CE is used to direct the backhaul link beam of the uplink when the transporter is set to a unified TCI state.

[0191] In some embodiments, a second MAC CE is used to direct the backhaul link beam of the uplink when the transporter does not support a unified TCI state and / or a unified TCI state is not set on the transporter.

[0192] In the above embodiment, both the first and second MAC CEs are used to direct the backhaul link beam of the uplink. The difference lies in the fact that for different TCI states, the transmission on the backhaul link employs spatial filters corresponding to the information (TCI state or SRI) provided by different MAC CEs. This makes the spatial filters used by the transmission on the backhaul link clearer and further improves network performance.

[0193] In the embodiments of the present invention, the content and methods indicated by the second MAC CE are the same as those indicated by the first MAC CE for the non-unified TCI state in the embodiments of the first aspect, and a detailed explanation is omitted here, with only the basic content being described.

[0194] In some embodiments, the second reference resource and / or second reference signal corresponding to the SRS resource is indicated by RRC signaling and / or MAC signaling.

[0195] In some embodiments, the provision of an SRI by a second MAC CE includes the second MAC CE designating an SRS resource and / or a set of SRS resources.

[0196] When specifying an SRS resource, in some embodiments, the SRS resource specified by the second MAC CE is periodic, semi-persistent, or aperiodic; and / or the SRS resource specified by the second MAC CE is for beam management or codebook or non-codebook or antenna switching or PDC; and / or the SRS resource specified by the second MAC CE is configured by third configuration information and / or fourth configuration information; and / or the SRS resource specified by the second MAC CE is on an active uplink BWP.

[0197] In the above-described embodiment, the second MAC CE may indicate one or more SRS resources in SRS resources. These one or more SRS resources are configured by the third and / or fourth configuration information.

[0198] In the above-described embodiment, one or more SRS resources are: Having a specific resource type; and / or Having a specific use; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or It belongs to the preceding N or succeeding N SRS resources, which are arranged in ascending or descending order of their SRS resource identifiers.

[0199] In the embodiments described above, the specific resource type may include periodic, semi-persistent, or aperiodic types; the specific application may include beam management or codebook or non-codebook or antenna switching or PDC; and the specific spatial relation information may include the corresponding second reference resource and / or second reference reference signal being in an active downlink BWP or uplink BWP.

[0200] In the embodiments described above, a specific SRS resource set is predefined or specified.

[0201] In the above embodiment, the specific SRS resource set is Having a specific resource type; and / or Having a specific use; and / or Having a specific SRS resource set identifier; and / or Having a specific index; and / or It may also be directed by the second MAC CE.

[0202] In the embodiments described above, the specific application may include beam management or codebook or non-codebook or antenna switching or PDC; the specific resource type may include periodic, semi-persistent or aperiodic type; the specific SRS resource set identifier may include the largest or smallest SRS resource set identifier, or a relatively large or relatively small SRS resource set identifier, or an SRS resource set identifier equal to a specific value; and the specific index may include the first or last of the SRS resource sets set by the fourth configuration information.

[0203] When specifying an SRS resource set, in some embodiments, the SRS resource set specified by the second MAC CE is periodic, semi-persistent, or aperiodic; and / or, the SRS resource set specified by the second MAC CE is for beam management or codebook or non-codebook or antenna switching or PDC; and / or, the SRS resource set specified by the second MAC CE is configured by fourth configuration information; and / or, the SRS resource set specified by the second MAC CE is on an active uplink BWP.

[0204] In the embodiments described above, the second MAC CE can indicate one or more SRS resource sets. These one or more SRS resource sets can be configured by the fourth configuration information.

[0205] In the above-described embodiment, the one or more SRS resource sets are: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or It may belong to the preceding N or succeeding N SRS resource sets, which are arranged in ascending or descending order of their SRS resource set identifiers.

[0206] In the embodiments described above, specific applications may include beam management or codebook or non-codebook or antenna switching or PDC; specific resource types may include periodic, semi-persistent or aperiodic; and specific spatial relationship settings may include all SRS resources having the same spatial relationship information and / or second reference resource and / or second reference signal, for example, all SRS resources in a set of SRS resources having the same spatial relationship information and / or second reference resource and / or second reference signal.

[0207] In some embodiments, the same information field of the second MAC CE is used to indicate an SRS resource set and an SRS resource; or, different information fields of the second MAC CE are used to indicate an SRS resource set and an SRS resource, respectively.

[0208] In some embodiments, the second MAC CE indicates the SRS resource by indicating the SRS resource identifier; or the second MAC CE indicates the SRS resource based on a mapping relationship between a bit value and one or more of the aforementioned SRS resources.

[0209] In some embodiments, the second MAC CE indicates the SRS resource set by indicating an SRS resource set identifier; or the second MAC CE indicates the SRS resource set based on a mapping relationship between bit values ​​and one or more SRS resource sets as described above.

[0210] In several other embodiments, the provision of an SRI by the second MAC CE includes the second MAC CE designating a PUCCH resource and / or a PUCCH resource group and / or a PUCCH resource set.

[0211] In the embodiments described above, the third reference resource and / or third reference signal corresponding to the PUCCH resource are predefined and / or indicated.

[0212] In the above-described embodiment, the second MAC CE may include a UCCH resource identifier, a PUCCH resource group identifier, or a PUCCH resource set identifier.

[0213] In addition, in several other embodiments, the provision of SRI by the second MAC CE includes the second MAC CE indicating spatial relationship information (or spatial relationship) and / or the first reference resource and / or the first reference signal.

[0214] In the embodiment described above, the second MAC CE can indicate the spatial relationship information by indicating a spatial relationship information identifier (or spatial relationship identifier) ​​and / or a first reference resource and / or a first reference signal.

[0215] The embodiments described above illustrate examples of the present invention, but the present invention is not limited to these, and appropriate modifications may be made based on the embodiments described above. For example, the embodiments described above may be used individually, or a combination of several of the embodiments described above may be used.

[0216] In the embodiment described above, after the transponder receives a first MAC CE and / or a second MAC CE to indicate the backhaul link beam of the uplink, the transmission on that backhaul link employs a spatial filter corresponding to the TCI state or SRI provided (or indicated) by the first MAC CE and / or the second MAC CE. This clarifies the spatial filter used by the transmission on the backhaul link and improves network performance.

[0217] <Example of the third side> In the embodiments of the present invention, a communication method is provided and will be described from the perspective of network equipment. Here, redundant explanations that are the same as those in the embodiments of the first and second aspects will be omitted.

[0218] Figure 10 shows a communication method in an embodiment of the present invention, corresponding to the embodiment of the first side, and as shown in Figure 10, the method includes the following, namely, 1001: The network device transmits a first MAC CE to the transceiver to instruct it to use the backhaul link beam of the uplink, thereby causing the transceiver's transmission on the backhaul link to employ a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

[0219] Figure 11 is a diagram showing a communication method in an embodiment of the present invention, corresponding to the embodiment of the second aspect, and as shown in Figure 11, the method includes the following, namely, 1101: A network device transmits a first MAC CE or a second MAC CE to the transceiver to instruct it to use a backhaul link beam on the uplink, thereby causing the transceiver's transmission on the backhaul link to employ a spatial filter corresponding to the TCI state provided by the first MAC CE or the SRI provided by the second MAC CE.

[0220] In the embodiment described above, the network equipment transmits a first MAC CE and / or a second MAC CE to the transceiver to direct the backhaul link beam of the uplink, thereby enabling the transceiver's transmission on the backhaul link to employ a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE and / or the second MAC CE, clarifying the spatial filter used by the transmission on the backhaul link and improving network performance.

[0221] <Example of the fourth side> In embodiments of the present invention, a transfer device is provided, which may be, for example, the aforementioned NCR, a network device or terminal device having a transfer function, or one or more components or assemblies provided on the NCR, network device or terminal device.

[0222] Figure 12 shows a transporter in an embodiment of the present invention. Since the principle by which this transporter solves the problem is the same as the method in the embodiment of the first aspect, its specific implementation can be found by referring to the embodiment of the first aspect, and redundant explanations that are the same will be omitted here.

[0223] As shown in FIG. 12, the transmitter 1200 includes the following, that is, Mobile terminal 1201: receives a first MAC CE for instructing an uplink backhaul link beam; and Transfer unit 1202: The transmission on its backhaul link employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

[0224] In some embodiments, when the transmitter does not transmit simultaneously on the backhaul link and the control link, the transmission on the backhaul link of the transfer unit 1202 employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

[0225] In some embodiments, when the transmitter transmits simultaneously on the backhaul link and the control link, the spatial filter for the transmission on the backhaul link is the same as the spatial filter for the control link.

[0226] In some embodiments, the SRI includes an SRS resource, and / or an SRS resource indicator, and / or an SRS resource identifier, and / or an SRS resource set, and / or an SRS resource set indicator, and / or an SRS resource set identifier, and / or a PUCCH resource, and / or a PUCCH resource indicator, and / or a PUCCH resource identifier, and / or a PUCCH resource set, and / or a PUCCH resource set indicator, and / or a PUCCH resource set identifier, and / or a PUCCH resource group, and / or a PUCCH resource group indicator, and / or a PUCCH resource group identifier, and / or spatial relationship information, and / or a spatial relationship information indicator and / or a spatial relationship information identifier.

[0227] In the above embodiments, the spatial relation information indicates a first reference resource and / or a first reference reference signal (reference RS), and / or the spatial relation information includes an SSB index, and / or a NZP CSI-RS resource index, and / or an SRS resource identifier.

[0228] In the above embodiments, the first reference resource and / or the first reference reference signal (reference RS) includes a PUCCH resource, and / or an SSB, and / or a NZP CSI-RS resource, and / or an SRS resource.

[0229] In some embodiments, the information field included in the first MAC CE is fixed or variable.

[0230] In the above embodiments, the first MAC CE includes a first information field, or when a unified TCI state is set in the transmitter, the first MAC CE includes a first information field; when a unified TCI state is not set in the transmitter, the first MAC CE includes a first information field and a second information field.

[0231] In some embodiments, the first MAC CE has a fixed size or a variable size.

[0232] In the above embodiments, the first MAC CE has one octet, or when a unified TCI state is set in the transmitter, the first MAC CE has one octet; when a unified TCI state is not set in the transmitter, the first MAC CE has two octets, where one octet includes eight bits.

[0233] In some embodiments, when a unified TCI state type of "joint" (unifiedTCI-StateType = joint) is set in the transmitter, and / or a joint TCI state is set, the first MAC CE includes an identifier of one joint TCI state.

[0234] In the above-described embodiment, the joint TCI state is the TCI state of the active DL BWP, or the joint TCI state is the TCI state set by the first configuration information in the active DL BWP.

[0235] In some embodiments, the first MAC CE includes an identifier for one UL TCI state when the transceiver is configured with a unifiedTCI-StateType=separate of type “separate” and / or an uplink TCI state (ul-TCI-StateList).

[0236] In the above-described embodiment, the UL TCI state is the TCI state of the active UL BWP, or the UL TCI state is the TCI state set by the second configuration information in the active UL BWP.

[0237] In some embodiments, if the transporter does not support a unified TCI state and / or a unified TCI state is not set, the first MAC CE provides an SRI.

[0238] In some embodiments, the provision of an SRI by the first MAC CE includes the first MAC CE directing an SRS resource and / or a set of SRS resources.

[0239] In some embodiments, the SRS resource indicated by the first MAC CE is Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or It belongs to the previous N or the next N SRS resources arranged in ascending or descending order of the SRS resource identifier.

[0240] In some embodiments, the second reference resource and / or the second reference signal corresponding to the SRS resource is indicated by RRC signaling and / or MAC signaling.

[0241] In some embodiments, the SRS resource indicated by the first MAC CE is periodic or semi-persistent or aperiodic; and / or for beam management or codebook or non-codebook or antenna switching or PDC; and / or configured by third configuration information and / or fourth configuration information; and / or in an active uplink BWP.

[0242] In some embodiments, the first MAC CE indicates the SRS resource in one or more SRS resources.

[0243] In the above embodiments, the one or more SRS resources are configured by the third configuration information and / or the fourth configuration information.

[0244] In the above embodiments, the one or more SRS resources have a specific resource type; and / or have a specific use; and / or have specific spatial relationship information; and / or belong to a specific SRS resource set; and / or the SRS resource identifier is less than or equal to a first value; and / or belong to the previous N or the next N SRS resources arranged in ascending or descending order of the index; and / or It belongs to the previous N or the next N SRS resources arranged in ascending or descending order of the SRS resource identifier.

[0245] In the embodiments described above, the specific resource type includes periodic, semi-persistent, or aperiodic; the specific application includes beam management or codebook or non-codebook or antenna switching or PDC; and the specific spatial relation information includes the corresponding second reference resource and / or second reference signal being in an active downlink BWP or uplink BWP.

[0246] In the embodiments described above, the specific SRS resource set is predefined or specified.

[0247] In the above-described embodiment, the specific SRS resource set is Having a specific resource type; and / or Having a specific use; and / or Having a specific SRS resource set identifier; and / or Having a specific index; and / or This is indicated by the first MAC CE.

[0248] In the embodiments described above, the specific use includes beam management or codebook or non-codebook or antenna switching or PDC; the specific resource type includes periodic, semi-persistent or aperiodic; the specific SRS resource set identifier includes the largest or smallest SRS resource set identifier, or a relatively large or relatively small SRS resource set identifier, or an SRS resource set identifier equal to a specific value; and the specific index includes the first or last in the SRS resource set set by the fourth configuration information.

[0249] In some embodiments, the SRS resource set indicated by the first MAC CE is: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or Set by the fourth setting information; and / or It is located on the active uphill link BWP.

[0250] In the above-described embodiment, the first MAC CE directs one or more SRS resource sets to an SRS resource set.

[0251] In the above-described embodiment, the one or more SRS resource sets are configured by the fourth configuration information.

[0252] In the above-described embodiment, the one or more SRS resource sets are: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or It belongs to the preceding N or succeeding N SRS resource sets, which are arranged in ascending or descending order of their SRS resource set identifiers.

[0253] In the embodiments described above, the specific application includes beam management or codebook or non-codebook or antenna switching or PDC; the specific resource type includes periodic, semi-persistent or aperiodic type; and the specific spatial relation setting includes all SRS resources in a single SRS resource set having the same spatial relation information and / or second reference resource and / or second reference signal.

[0254] In some embodiments, the same information field of the first MAC CE is used to indicate the SRS resource set and the SRS resource; or, different information fields of the first MAC CE are each used to indicate the SRS resource set and the SRS resource.

[0255] In some embodiments, the first MAC CE indicates the SRS resource by indicating an SRS resource identifier; or the first MAC CE indicates the SRS resource based on a mapping relationship between a bit value and one or more SRS resources.

[0256] In some embodiments, the first MAC CE indicates the SRS resource set by indicating an SRS resource set identifier; or the first MAC CE indicates the SRS resource set based on a mapping relationship between bit values ​​and the one or more SRS resource sets.

[0257] In some embodiments, the provision of an SRI by the first MAC CE includes the first MAC CE designating a PUCCH resource and / or a PUCCH resource group and / or a PUCCH resource set.

[0258] In the above-described embodiment, the third reference resource and / or third reference signal corresponding to the PUCCH resource are predefined and / or indicated.

[0259] In the embodiment described above, the first MAC CE includes a PUCCH resource identifier, a PUCCH resource group identifier, or a PUCCH resource set identifier.

[0260] In some embodiments, the provision of SRI by the first MAC CE includes the first MAC CE indicating spatial relation information and / or a first reference resource and / or a first reference signal.

[0261] In the embodiment described above, the first MAC CE indicates the spatial relationship information by indicating a spatial relationship information identifier and / or a first reference resource and / or a first reference signal.

[0262] Figure 13 shows another transporter in an embodiment of the present invention. Since the principle by which this transporter solves the problem is the same as the method in the embodiment of the second aspect, its specific implementation can be found by referring to the embodiment of the second aspect, and redundant explanations are omitted here.

[0263] As shown in Figure 13, the transfer unit 1300 includes the following: Mobile terminal 1301: receives a first MAC CE or second MAC CE to indicate the backhaul link beam of the uplink; and Transfer unit 1302: Transmission over its backhaul link employs a spatial filter corresponding to the TCI state provided by the first MAC CE or the SRI provided by the second MAC CE.

[0264] In some embodiments, the identifiers and / or sizes of the first MAC CE and the second MAC CE differ.

[0265] In some embodiments, the first MAC CE is used to direct the backhaul link beam of the uplink when the transceiver is set to a unified TCI state.

[0266] In some embodiments, the second MAC CE is used to direct the backhaul link beam of the uplink when the transporter does not support a unified TCI state and / or a unified TCI state is not set.

[0267] In some embodiments, the provision of an SRI by the second MAC CE includes the second MAC CE directing an SRS resource and / or a set of SRS resources.

[0268] In some embodiments, the second reference resource and / or second reference signal corresponding to the SRS resource is indicated by RRC signaling and / or MAC signaling.

[0269] In some embodiments, the SRS resource indicated by the second MAC CE is It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or Set by the third setting information and / or the fourth setting information; and / or It is located on the active uphill link BWP.

[0270] In the above-described embodiment, the second MAC CE directs the SRS resources to one or more SRS resources.

[0271] In the above-described embodiment, the one or more SRS resources are configured by the third configuration information and / or the fourth configuration information.

[0272] In the above-described embodiment, the one or more SRS resources are: Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or It belongs to the preceding N or succeeding N SRS resources, which are arranged in ascending or descending order of their SRS resource identifiers.

[0273] In the embodiments described above, the specific resource type includes periodic, semi-persistent, or aperiodic types; the specific application includes beam management or codebook or non-codebook or antenna switching or PDC; and the specific spatial relation information includes the corresponding second reference resource and / or second reference signal being in an active downlink BWP or uplink BWP.

[0274] In the embodiments described above, the specific SRS resource set is predefined or specified.

[0275] In the above-described embodiment, the specific SRS resource set is Having a specific resource type; and / or Having a specific use; and / or Having a specific SRS resource set identifier; and / or Having a specific index; and / or This is indicated by the second MAC CE.

[0276] In the embodiments described above, the specific use includes beam management or codebook or non-codebook or antenna switching or PDC; the specific resource type includes periodic, semi-persistent or aperiodic types; the specific SRS resource set identifier includes the largest or smallest SRS resource set identifier, or a relatively large or relatively small SRS resource set identifier, or an SRS resource set identifier equal to a specific value; and the specific index includes the first or last in the SRS resource set set by the fourth configuration information.

[0277] In some embodiments, the SRS resource set indicated by the second MAC CE is: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or Set by the fourth setting information; and / or It is located on the active uphill link BWP.

[0278] In the embodiment described above, the second MAC CE directs one or more SRS resource sets to an SRS resource set.

[0279] In the above-described embodiment, the one or more SRS resource sets are configured by the fourth configuration information.

[0280] In the above-described embodiment, the one or more SRS resource sets are: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or A set belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of their index; and / or It belongs to the preceding N or succeeding N SRS resource sets, which are arranged in ascending or descending order of their SRS resource set identifiers.

[0281] In the embodiments described above, the specific application includes beam management or codebook or non-codebook or antenna switching or PDC; the specific resource type includes periodic, semi-persistent or aperiodic type; and the specific spatial relation setting includes all SRS resources in a single SRS resource set having the same spatial relation information and / or second reference resource and / or second reference signal.

[0282] In some embodiments, the same information field of the second MAC CE is used to indicate the SRS resource set and the SRS resource; or, different information fields of the second MAC CE are each used to indicate the SRS resource set and the SRS resource.

[0283] In some embodiments, the second MAC CE indicates the SRS resource by indicating an SRS resource identifier; or the second MAC CE indicates the SRS resource based on a mapping relationship between a bit value and one or more SRS resources.

[0284] In some embodiments, the second MAC CE indicates the SRS resource set by indicating an SRS resource set identifier; or the second MAC CE indicates the SRS resource set based on a mapping relationship between bit values ​​and the one or more SRS resource sets.

[0285] In some embodiments, the provision of an SRI by the second MAC CE includes the second MAC CE directing a PUCCH resource and / or a PUCCH resource group and / or a PUCCH resource set.

[0286] In the above-described embodiment, the third reference resource and / or third reference signal corresponding to the PUCCH resource are predefined and / or indicated.

[0287] In the embodiment described above, the second MAC CE includes a PUCCH resource identifier, a PUCCH resource group identifier, or a PUCCH resource set identifier.

[0288] In some embodiments, the provision of SRI by the second MAC CE includes the second MAC CE indicating spatial relation information and / or a first reference resource and / or a first reference signal.

[0289] In the embodiment described above, the second MAC CE indicates the spatial relationship information by indicating a spatial relationship information identifier and / or a first reference resource and / or a first reference signal.

[0290] Furthermore, for convenience, Figures 12 and 13 only show the connection relationships or signal directions between each component or module, but various related technologies such as bus connections can be employed as will be understood by those skilled in the art. The above-mentioned components or modules may be realized by hardware such as processors, memory devices, transmitters, and receivers, but the implementation of the present invention is not limited to these.

[0291] The embodiments described above illustrate examples of the present invention, but the present invention is not limited to these, and appropriate modifications may be made based on the embodiments described above. For example, the embodiments described above may be used individually, or a combination of several of the embodiments described above may be used.

[0292] In the embodiment described above, the network equipment directs the transceiver to a first MAC CE and / or a second MAC CE to direct the backhaul link beam of the uplink, thereby enabling the transceiver's transmission on the backhaul link to employ spatial filters corresponding to the TCI state or SRI provided by the first MAC CE and / or the second MAC CE, clarifying the spatial filters used by the transmission on the backhaul link and improving network performance.

[0293] <Example of the fifth side> An embodiment of the present invention provides network equipment.

[0294] Figure 14 shows a network device in an embodiment of the present invention. Since the principle by which this network device solves the problem is the same as the method in the embodiment of the third aspect, you can refer to the embodiment of the third aspect for its specific implementation, and redundant explanations that are the same will be omitted here.

[0295] As shown in Figure 14, the network device 1400 in the embodiment of the present invention includes the following: Transmitting unit 1401: Transmits a first MAC CE to instruct the transporter to use the backhaul link beam of the uplink, thereby causing the transmission on the transporter's backhaul link to employ a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE; or transmits a first or second MAC CE to instruct the transporter to use the backhaul link beam of the uplink, thereby causing the transmission on the transporter's backhaul link to employ a spatial filter corresponding to the TCI state provided by the first MAC CE or the SRI provided by the second MAC CE.

[0296] Although only the components or modules according to the present invention have been described above, the present invention is not limited to these. The network device 1400 in the embodiment of the present invention may further include other components or modules, and the specific details of these components or modules can be found in the related technologies.

[0297] Furthermore, for convenience, Figure 14 only shows the connection relationships or signal directions between each component or module, but various related technologies such as bus connections may be employed so that those skilled in the art can understand them. The above-mentioned components or modules may be realized by hardware such as processors, memory devices, transmitters, and receivers, but the implementation of the present invention is not limited to these.

[0298] The embodiments described above illustrate examples of the present invention, but the invention is not limited to these, and appropriate modifications may be made based on the embodiments described above. For example, the embodiments described above may be used individually, or a combination of several of the embodiments described above may be used.

[0299] <Example of the sixth side view> An embodiment of the present invention provides a communication system, and Figure 1 shows a communication system in an embodiment of the present invention. As shown in Figure 1, the communication system 100 includes a network device 101, a transceiver 102, and a terminal device 103. For convenience, Figure 1 uses only one network device, one transceiver, and one terminal device as an example, but embodiments of the present invention are not limited to this.

[0300] In embodiments of the present invention, the transmission between the network device 101 and the terminal device 103 may involve the transmission of existing business (traffic / services) or business that may be implemented in the future. For example, these business operations may include, but are not limited to, eMBB, mMTC, URLLC, V2X communication, etc.

[0301] In this embodiment of the present invention, the network device 101 is configured to perform the method described in the third embodiment, and the transceiver 102 is configured to perform the method described in the first or second embodiment, the details of which are combined here, and a detailed description thereof is omitted here.

[0302] In embodiments of the present invention, network equipment is further provided, which may be, for example, a base station (gNB), but the present invention is not limited thereto, and may also include other network equipment.

[0303] Figure 15 is a diagram showing the configuration of a network device in an embodiment of the present invention. As shown in Figure 15, the network device 1500 may include a processor 1510 (for example, a central processor CPU) and a memory unit 1520, the memory unit 1520 being connected to the processor 1510. The memory unit 1520 can store various data, further store a program 1530 for information processing, and execute the program 1530 under the control of the processor 1510.

[0304] For example, the processor 1510 is configured to implement the method described in the third embodiment by executing a program.

[0305] Furthermore, as shown in Figure 15, the network device 1500 also includes a transceiver 1540, an antenna 1550, and other components. The functions of these components are the same as in the prior art, and therefore a detailed explanation is omitted here. Note that the network device 1500 does not necessarily have to include all the components shown in Figure 15. In addition, the network device 1500 may include components not shown in Figure 15, for which prior art can be referenced.

[0306] In embodiments of the present invention, a transceiver is further provided, which may be, for example, a repeater, RF transceiver, RF repeater, repeater node, transceiver node, repeater node, smart repeater, smart transceiver, smart repeater node, smart transceiver node, smart repeater node, etc., but the present invention is not limited to these, and may be any other device.

[0307] Figure 16 is a diagram showing the configuration of a transfer device in an embodiment of the present invention. As shown in Figure 16, the transfer device 1600 may include a processor 1610 and a memory unit 1620, the memory unit 1620 which stores data and programs and is connected to the processor 1610. Note that this figure is merely illustrative, and telecommunication functions or other functions may be realized by supplementing or substituting this structure with other types of structures.

[0308] For example, the processor 1610 may be configured to implement the method described in the first or second embodiment by executing a program.

[0309] As shown in Figure 16, the transceiver 1600 may further include a network-side transceiver 1640-1 and a network-side antenna 1650-1, a terminal-side transceiver 1640-2 and a terminal-side antenna 1650-2, and a signal amplification circuit 1660, etc. Of these, the functions of the above-mentioned components are the same as in the prior art, and a detailed explanation thereof is omitted here. Note that the transceiver 1600 does not necessarily have to include all the components shown in Figure 16. Furthermore, the transceiver 1600 may also include components not shown in Figure 16, for which prior art can be referred.

[0310] In embodiments of the present invention, a computer-readable program is further provided, wherein when the program is executed on the transfer device, the program causes the computer to perform the method described in the first or second embodiment on the transfer device.

[0311] In embodiments of the present invention, a storage medium storing a computer-readable program is further provided, wherein the computer-readable program causes a computer to execute the method described in the first or second embodiment using a transfer device.

[0312] In embodiments of the present invention, a computer-readable program is further provided, and when the program is executed on a network device, the program causes the computer to execute the method described in the third embodiment on the network device.

[0313] In embodiments of the present invention, a storage medium storing a computer-readable program is further provided, wherein the computer-readable program causes a computer to execute the method described in the third embodiment on a network device.

[0314] Furthermore, the above-described apparatus and method may be implemented by software or hardware, or by a combination of hardware and software. The present invention further relates to a computer-readable program as described below, that is, the program, when executed by a logic component, causes the logic component to implement the above-described apparatus or component, or to the logic component to implement each of the above-described method or step. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processor used in a computer. The present invention further relates to a storage medium storing the above-described program, for example, a hard disk, a magnetic disk, an optical hard disk, a DVD, a flash memory, etc.

[0315] Furthermore, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic component, discrete gate or transistor logic component, discrete hardware assembly or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may further be configured as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors connected to a DSP by communication or any other combination of any other configuration.

[0316] Although preferred embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and any modifications to the present invention that do not deviate from the spirit of the invention fall within the technical scope of the present invention.

[0317] Furthermore, the following additional information is disclosed regarding the above-mentioned embodiments.

[0318] (Note 1) A communication method, wherein the method is This includes the transceiver receiving a first MAC CE to direct the backhaul link beam of the uplink, The transmission over the backhaul link of the aforementioned transceiver employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

[0319] (Note 2) The method described in Appendix 1, wherein the method further includes: If the transceiver does not transmit simultaneously on the backhaul link and the control link, the transceiver's transmission on the backhaul link employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

[0320] (Note 3) The method described in Appendix 1 or 2, wherein the method further includes: When the aforementioned transceiver transmits simultaneously over the backhaul link and the control link, the spatial filter for transmission over the backhaul link is the same as the spatial filter for transmission over the control link.

[0321] (Note 4) The method described in Appendix 1, The SRI includes an SRS resource, and / or an SRS resource indicator, and / or an SRS resource identifier, and / or an SRS resource set, and / or an SRS resource set indicator, and / or an SRS resource set identifier, and / or a PUCCH resource, and / or a PUCCH resource indicator, and / or a PUCCH resource identifier, and / or a PUCCH resource set, and / or a PUCCH resource set indicator, and / or a PUCCH resource set identifier, and / or a PUCCH resource group, and / or a PUCCH resource group indicator, and / or a PUCCH resource group identifier, and / or spatial relationship information, and / or a spatial relationship information indicator and / or a spatial relationship information identifier.

[0322] (Note 5) The method described in Appendix 4, The spatial relationship information indicates the first reference resource and / or the first reference reference signal (reference RS), and / or The spatial relationship information includes an SSB index and / or an NZP CSI-RS resource index and / or an SRS resource identifier.

[0323] (Note 5a) The method described in Appendix 1, The SRI is used to provide a first reference resource and / or a first reference reference signal (reference RS), the first reference resource and / or first reference reference signal (reference RS) including a PUCCH resource and / or an SSB and / or an NZP CSI-RS resource and / or an SRS resource.

[0324] (Note 6) A method of adding any one of the above-mentioned clauses, The information fields included in the first MAC CE are fixed or variable.

[0325] (Note 7) The method described in Appendix 6, The aforementioned first MAC CE includes a first information field, or When the transceiver is set to a unified TCI state, the first MAC CE includes a first information field, and when the transceiver is not set to a unified TCI state, the first MAC CE includes a first information field and a second information field.

[0326] (Note 8) A method of adding any one of the above-mentioned clauses, The aforementioned first MAC CE has a fixed size or a variable size.

[0327] (Note 9) The method described in Appendix 8, The aforementioned first MAC CE has one octet, or When the transceiver is set to a unified TCI state, the first MAC CE has one octet, and when the transceiver is not set to a unified TCI state, the first MAC CE has two octets. Of these, one octet contains eight bits.

[0328] (Note 10) A method of adding any one of the above-mentioned clauses, The first MAC CE includes an identifier for one joint TCI state when the transceiver is set to a unifiedTCI-StateType=joint of type “joint”, and / or a joint TCI state is set.

[0329] (Note 11) The method described in Appendix 10, The aforementioned joint TCI state is the TCI state of an active DL BWP, or The aforementioned joint TCI state is the TCI state set by the first configuration information in the active DL BWP.

[0330] (Note 12) A method of adding any one of the above-mentioned clauses, The first MAC CE includes an identifier for one UL TCI state when the transceiver is configured with a unified TCI state type of type “separate” (unifiedTCI-StateType=separate) and / or an uplink TCI state (ul-TCI-StateList).

[0331] (Note 13) The method described in Appendix 12, The UL TCI state is the TCI state of an active UL BWP, or The aforementioned UL TCI state is the TCI state set by the second configuration information in the active UL BWP.

[0332] (Note 14) A method of adding any one of the above-mentioned clauses, If the aforementioned transceiver does not support a unified TCI state and / or a unified TCI state is not set, the first MAC CE provides an SRI.

[0333] (Note 15) A method of adding any one of the above-mentioned clauses, The provision of an SRI by the first MAC CE includes the first MAC CE designating an SRS resource and / or a set of SRS resources.

[0334] (Note 16) The method described in Appendix 15, The second reference resource and / or second reference signal corresponding to the aforementioned SRS resource is indicated by RRC signaling and / or MAC signaling.

[0335] (Note 17) The method described in Appendix 15, The SRS resource indicated by the first MAC CE is: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or Set by the third setting information and / or the fourth setting information; and / or Something located on the active uphill link BWP.

[0336] (Note 17a) The method described in Appendix 15 or 17, The SRS resource indicated by the first MAC CE is: Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or The items belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of their SRS resource identifiers.

[0337] (Note 18) A method described in any one of the items in Appendix 15-17, The aforementioned first MAC CE points to one or more SRS resources.

[0338] (Note 19) The method described in Appendix 18, The one or more SRS resources mentioned above are those configured by the third configuration information and / or the fourth configuration information.

[0339] (Note 20) A method described in any one of the items in Appendix 18-19, The aforementioned one or more SRS resources are Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or The items belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of their SRS resource identifiers.

[0340] (Note 21) The method described in Appendix 20, The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The aforementioned specific applications include beam management, codebooks, non-codebooks, antenna switching, or PDC; The aforementioned specific spatial relationship information includes the fact that the corresponding second reference resource and / or second reference signal is in an active downlink BWP or uplink BWP.

[0341] (Note 22) The method described in Appendix 20, The aforementioned specific SRS resource set is one that is predefined or specified.

[0342] (Note 22a) The method described in Appendix 20 or 22, The aforementioned specific SRS resource set is the SRS resource set indicated by the first MAC CE.

[0343] (Note 23) The method described in Appendix 20 or 22, The aforementioned specific SRS resource set is Having a specific resource type; and / or Having a specific use; and / or Having a specific SRS resource set identifier; and / or Having a specific index; and / or The one indicated by the aforementioned first MAC CE.

[0344] (Note 24) The method described in Appendix 23, The aforementioned specific applications include beam management, codebooks, non-codebooks, antenna switching, or PDC; The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The specified SRS resource set identifier includes the largest or smallest SRS resource set identifier, or a relatively large or relatively small SRS resource set identifier, or an SRS resource set identifier equal to a specific value; and The aforementioned specific index includes the first or last one in the SRS resource set configured by the fourth configuration information.

[0345] (Note 25) The method described in any one of the items in Appendix 15-24, The SRS resource set specified by the first MAC CE is: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or Set by the fourth setting information; and / or Something located on the active uphill link BWP.

[0346] (Note 25a) The method described in Appendix 15 or 25, The SRS resource set specified by the first MAC CE is: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or A set belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of their index; and / or Those belonging to the preceding N or succeeding N SRS resource sets, arranged in ascending or descending order of their SRS resource set identifiers.

[0347] (Note 26) The method described in Appendix 25, The aforementioned first MAC CE refers to one or more SRS resource sets.

[0348] (Note 27) The method described in Appendix 26, The one or more SRS resource sets mentioned above are configured by the fourth configuration information.

[0349] (Note 28) The method described in Appendix 26, The aforementioned one or more SRS resource sets are: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or, Those belonging to the preceding N or succeeding N SRS resource sets, arranged in ascending or descending order of their SRS resource set identifiers.

[0350] (Note 29) The method described in Appendix 28, The aforementioned specific applications include beam management, codebooks, non-codebooks, antenna switching, or PDC; The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The aforementioned specific spatial relationship setting includes the fact that the spatial relationship information and / or second reference resource and / or second reference signal of all SRS resources in a single SRS resource set are the same.

[0351] (Note 30) The method described in any one of the items in Appendix 15-29, The same information field of the first MAC CE is used to indicate the SRS resource set and the SRS resource; or Each of the different information fields of the first MAC CE is used to indicate an SRS resource set and an SRS resource, respectively.

[0352] (Note 31) The method described in any one of the items in Appendix 15-30, The first MAC CE indicates the SRS resource by indicating the SRS resource identifier; or The first MAC CE indicates an SRS resource based on the mapping relationship between a bit value and one or more SRS resources.

[0353] (Note 32) The method described in any one of the items in Appendix 15-31, The first MAC CE indicates the SRS resource set by indicating the SRS resource set identifier; or The first MAC CE indicates the SRS resource set based on the mapping relationship between bit values ​​and the one or more SRS resource sets.

[0354] (Note 33) The method described in Appendix 14, The provision of SRI by the aforementioned first MAC CE is The first MAC CE includes pointing to a PUCCH resource and / or a PUCCH resource group and / or a PUCCH resource set.

[0355] (Note 34) The method described in Appendix 33, The third reference resource and / or third reference signal corresponding to the PUCCH resource are predefined and / or indicated.

[0356] (Note 35) The method described in Appendix 33, The aforementioned first MAC CE includes a PUCCH resource identifier, a PUCCH resource group identifier, or a PUCCH resource set identifier.

[0357] (Note 36) The method described in Appendix 14, The provision of SRI by the aforementioned first MAC CE is The first MAC CE includes indicating spatial relation information and / or a first reference resource and / or a first reference signal.

[0358] (Note 37) The method described in Appendix 36, The first MAC CE indicates the spatial relation information by indicating a spatial relation information identifier and / or a first reference resource and / or a first reference signal.

[0359] (Note 38) A communication method, wherein the method is The transfer unit receives a first MAC CE or a second MAC CE to indicate the backhaul link beam of the uplink, The transmission over the backhaul link of the aforementioned transceiver employs a spatial filter corresponding to the TCI state provided by the first MAC CE or the SRI provided by the second MAC CE.

[0360] (Note 38a) The method described in Appendix 38, The identifiers and / or sizes of the first MAC CE and the second MAC CE are different.

[0361] (Note 39) The method described in Appendix 38 or 38a, The aforementioned first MAC CE is used to direct the backhaul link beam of the uplink when the transceiver is set to a unified TCI state.

[0362] (Note 40) The method described in any one of the items in Appendix 38-39, The aforementioned second MAC CE is used to direct the uplink backhaul link beam when the transporter does not support a unified TCI state and / or a unified TCI state is not set.

[0363] (Note 41) The method described in Appendix 40, The fact that the aforementioned second MAC CE provides SRI means that The aforementioned second MAC CE includes pointing to an SRS resource and / or SRS resource set.

[0364] (Note 42) The method described in Appendix 41, The second reference resource and / or second reference signal corresponding to the aforementioned SRS resource is indicated by RRC signaling and / or MAC signaling.

[0365] (Note 43) The method described in Appendix 41, The SRS resource indicated by the second MAC CE is: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or Set by the third setting information and / or the fourth setting information; and / or Something located on the active uphill link BWP.

[0366] (Note 43a) The method described in Appendix 41 or 43, The SRS resource indicated by the second MAC CE is: Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or The items belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of their SRS resource identifiers.

[0367] (Note 44) The method described in Appendix 43, The aforementioned second MAC CE points to an SRS resource with one or more SRS resources.

[0368] (Note 45) The method described in Appendix 44, The one or more SRS resources mentioned above are those configured by the third configuration information and / or the fourth configuration information.

[0369] (Note 46) The method described in Appendix 44, The aforementioned one or more SRS resources are Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or following N SRS resources arranged in ascending or descending order of their index; and / or The items belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of their SRS resource identifiers.

[0370] (Note 47) The method described in Appendix 46, The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The aforementioned specific applications include beam management, codebooks, non-codebooks, antenna switching, or PDC; The aforementioned specific spatial relationship information includes the fact that the corresponding second reference resource and / or second reference signal is in an active downlink BWP or uplink BWP.

[0371] (Note 48) The method described in Appendix 46, The aforementioned specific SRS resource set is one that is predefined or specified.

[0372] (Note 48a) The method described in Appendix 46 or 48, The aforementioned specific SRS resource set is the SRS resource set indicated by the second MAC CE.

[0373] (Note 49) The method described in Appendix 46 or 48, The aforementioned specific SRS resource set is Having a specific resource type; and / or Having a specific use; and / or Having a specific SRS resource set identifier; and / or Having a specific index; and / or The thing indicated by the second MAC CE.

[0374] (Note 50) The method described in Appendix 49, The aforementioned specific applications include beam management, codebooks, non-codebooks, antenna switching, or PDC; The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The specified SRS resource set identifier includes the largest or smallest SRS resource set identifier, or a relatively large or relatively small SRS resource set identifier, or an SRS resource set identifier equal to a specific value. The aforementioned specific index includes the first or last one in the SRS resource set configured by the fourth configuration information.

[0375] (Note 51) The method described in Appendix 41, The SRS resource set indicated by the second MAC CE is: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or The fourth setting information is set; and / or Something located on the active uphill link BWP.

[0376] (Note 51a) The method described in Appendix 41 or 51, The SRS resource set indicated by the second MAC CE is: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or Those belonging to the preceding N or succeeding N SRS resource sets, arranged in ascending or descending order of their SRS resource set identifiers.

[0377] (Note 52) The method described in Appendix 51, The aforementioned second MAC CE refers to one or more SRS resource sets.

[0378] (Note 53) The method described in Appendix 52, The aforementioned one or more SRS resource sets are those configured by the fourth configuration information.

[0379] (Note 54) The method described in Appendix 52, The aforementioned one or more SRS resource sets are: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or Those belonging to the preceding N or succeeding N SRS resource sets, arranged in ascending or descending order of their SRS resource set identifiers.

[0380] (Note 55) The method described in Appendix 54, The aforementioned specific applications include beam management, codebooks, non-codebooks, antenna switching, or PDC; The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The aforementioned specific spatial relationship setting includes the fact that the spatial relationship information and / or second reference resource and / or second reference signal of all SRS resources in a single SRS resource set are the same.

[0381] (Note 56) The method described in Appendix 41, The same information field of the second MAC CE is used to indicate the SRS resource set and the SRS resource; or The different information fields of the second MAC CE are used to indicate the SRS resource set and the SRS resource, respectively.

[0382] (Note 57) The method described in Appendix 41, The second MAC CE indicates the SRS resource by indicating the SRS resource identifier; or The second MAC CE indicates an SRS resource based on a mapping relationship between a bit value and one or more SRS resources.

[0383] (Note 58) The method described in Appendix 41, The second MAC CE indicates the SRS resource set by indicating the SRS resource set identifier; or The second MAC CE indicates the SRS resource set based on the mapping relationship between bit values ​​and the one or more SRS resource sets.

[0384] (Note 59) The method described in Appendix 40, The fact that the aforementioned second MAC CE provides SRI means that The second MAC CE includes pointing to a PUCCH resource and / or a PUCCH resource group and / or a PUCCH resource set.

[0385] (Note 60) The method described in Appendix 59, The third reference resource and / or third reference signal corresponding to the PUCCH resource are predefined and / or indicated.

[0386] (Note 61) The method described in Appendix 59, The aforementioned second MAC CE includes a PUCCH resource identifier, a PUCCH resource group identifier, or a PUCCH resource set identifier.

[0387] (Note 62) The method described in Appendix 40, The fact that the aforementioned second MAC CE provides SRI means that The second MAC CE includes indicating spatial relation information and / or a first reference resource and / or a first reference signal.

[0388] (Note 63) The method described in Appendix 62, The second MAC CE indicates the spatial relation information by indicating a spatial relation information identifier and / or a first reference resource and / or a first reference signal.

[0389] (Note 64) It is a transfer device, Including memory and processing units, The memory device stores a computer program. The processing device is configured to implement the method described in any one of the appendices 1 to 63 by executing the computer program.

[0390] (Note 65) It is a communication system, Including network equipment, transceivers and terminal equipment, The aforementioned transporter is configured to implement the method described in any one of the appendices 1-63.

Claims

1. It is a transfer device, A mobile terminal that receives a first MAC CE for directing the backhaul link beam of the uplink; and Including the transfer unit, Transmitter, which transmits over the backhaul link of the transfer unit, employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

2. A transfer device according to claim 1, A transporter in which, when the transporter does not transmit simultaneously on the backhaul link and the control link, the transmission on the backhaul link of the transporter unit employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE.

3. A transfer device according to claim 1, The SRI is used to provide a first reference resource and / or a first reference reference signal (reference RS). The first reference resource and / or first reference reference signal (reference RS) is a transporter that includes a PUCCH resource and / or SSB and / or NZP CSI-RS resource and / or SRS resource.

4. A transfer device according to claim 1, The provision of the SRI by the first MAC CE includes the transfer of an SRS resource and / or SRS resource set by the first MAC CE.

5. A transfer device according to claim 4, A transporter in which a second reference resource and / or second reference reference signal corresponding to the aforementioned SRS resource is indicated by RRC signaling and / or MAC signaling.

6. A transfer device according to claim 4, The SRS resources instructed by the aforementioned first MAC CE are: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or The settings are determined by the third setting information and / or the fourth setting information; and / or A transceiver located on the active uplink BWP.

7. A transfer device according to claim 4, The SRS resources instructed by the aforementioned first MAC CE are: Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or succeeding N SRS resources arranged in ascending or descending order of index; and / or A transporter belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of SRS resource identifiers.

8. A transfer device according to claim 4, The first MAC CE is a transporter that directs SRS resources to one or more SRS resources.

9. A transfer device according to claim 8, The aforementioned one or more SRS resources are Having a specific resource type; and / or Having a specific use; and / or Possessing specific spatial relationship information; and / or Belonging to a specific SRS resource set; and / or The SRS resource identifier is less than or equal to the first value; and / or Belonging to the preceding N or succeeding N SRS resources arranged in ascending or descending order of index; and / or A transporter belonging to the preceding N or succeeding N SRS resources, arranged in ascending or descending order of SRS resource identifiers.

10. A transfer device according to claim 9, The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The aforementioned specific applications include beam management or codebook or non-codebook or antenna switching or PDC; A transporter in which the aforementioned specific spatial relationship information includes the fact that the corresponding second reference resource and / or second reference signal is in an active downlink BWP or uplink BWP.

11. A transfer device according to claim 9, The aforementioned specific SRS resource set is a predefined or designated transporter.

12. A transfer device according to claim 9, The aforementioned specific SRS resource set is the SRS resource set instructed by the first MAC CE, and is a transporter.

13. A transfer device according to claim 9, The aforementioned specific SRS resource set is Having a specific resource type; and / or Having a specific use; and / or Having a specific SRS resource set identifier; and / or Having a specific index; and / or A transfer device as instructed by the aforementioned first MAC CE.

14. A transfer device according to claim 13, The aforementioned specific applications include beam management or codebook or non-codebook or antenna switching or PDC; The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The specified SRS resource set identifier includes the largest or smallest SRS resource set identifier, or a relatively large or relatively small SRS resource set identifier, or an SRS resource set identifier equal to a specific value; The aforementioned specific index is a transporter that includes the first or last one in the SRS resource set configured by the fourth configuration information.

15. A transfer device according to claim 4, The SRS resource set instructed by the aforementioned first MAC CE is: It is periodic, semi-permanent, or aperiodic; and / or For beam management or codebook or non-codebook or antenna switching or PDC; and / or Set by the fourth setting information; and / or A transceiver located on the active uplink BWP.

16. A transfer device according to claim 4, The SRS resource set instructed by the aforementioned first MAC CE is: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or A transporter belonging to the preceding N or succeeding N SRS resource sets, arranged in ascending or descending order of SRS resource set identifiers.

17. A transfer device according to claim 15, The first MAC CE is a transporter that directs one or more SRS resource sets to an SRS resource set.

18. A transfer device according to claim 17, The aforementioned one or more SRS resource sets are: Having a specific resource type; and / or Having a specific use; and / or Having a specific spatial relationship setting; and / or Includes only one SRS resource; and / or The SRS resource set identifier is less than or equal to the second value; and / or Belonging to the preceding N or succeeding N SRS resource sets arranged in ascending or descending order of index; and / or A transporter belonging to the preceding N or succeeding N SRS resource sets, arranged in ascending or descending order of SRS resource set identifiers.

19. A transfer device according to claim 18, The aforementioned specific applications include beam management or codebook or non-codebook or antenna switching or PDC; The aforementioned specific resource types include periodic, semi-permanent, or aperiodic types; The aforementioned specific spatial relationship setting includes a transporter in which the spatial relationship information and / or second reference resource and / or second reference signal of all SRS resources in a single SRS resource set are the same.

20. Network equipment, Including the transmission unit, The aforementioned transmission unit is A first MAC CE is transmitted to the transceiver to instruct the backhaul link beam of the uplink, thereby the transceiver's transmission on the backhaul link employs a spatial filter corresponding to the TCI state or SRI provided by the first MAC CE; or Network equipment that transmits a first MAC CE or a second MAC CE to instruct a transponder to use the backhaul link beam of the uplink, thereby causing the transponder's transmission on the backhaul link to employ a spatial filter corresponding to the TCI state provided by the first MAC CE or the SRI provided by the second MAC CE.

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