Systems and methods for resource information indication

Abstract

Presented are systems and methods for resource information indication. A network node may receive, from a wireless communication node, resource information used for at least one of a first forwarding link, a second forwarding link, a third forwarding link, or a fourth forwarding link. The first forwarding link may be from the wireless communication node to the network node. The second forwarding link may be from the network node to the wireless communication node. The third forwarding link may be from the network node to a wireless communication device. The fourth forwarding link may be from the wireless communication device to the network node.

Description

Technical Field

[0004] , , ,

[0001] The present disclosure generally relates to wireless communication, including but not limited to systems and methods for resource information indication.

Background Art

[0002] The standardization organization, the Third Generation Partnership Project (3GPP (registered trademark)), is currently proceeding with the specification of a new radio interface called 5G New Radio (5G NR) and a next-generation packet core network (NG-CN or NGC). 5G NR will have three main components, namely, a 5G access network (5G-AN), a 5G core network (5GC), and a user equipment (UE). To facilitate the activation of different data services and requirements, elements of the 5GC, also called network functions, are simplified such that some of them are software-based and some are hardware-based so that they can be adapted according to necessity.

Summary of the Invention

Means for Solving the Problems

[0003] The exemplary embodiments disclosed herein are directed to solving one or more problems presented in the prior art and providing additional features that will be readily apparent by reference to the following detailed description when considered in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it is to be understood that these embodiments are presented by way of example and not limitation, and various modifications to the disclosed embodiments can be made within the scope of the present disclosure, which will be apparent to those skilled in the art upon a review of the present disclosure.

[0004] At least one aspect relates to the following systems, methods, apparatus, or computer-readable media: A network node may receive resource information from a radio communication node to be used for at least one of a first, second, third, or fourth transport link. The first transport link may be from the radio communication node to the network node. The second transport link may be from the network node to the radio communication node. The third transport link may be from the network node to the radio communication device. The fourth transport link may be from the radio communication device to the network node. The resource information may include at least one of beam information for an access link or additional information. The additional information may include at least one of frequency information for an access link, panel information for an access link, link level on / off information, beam information for a backhaul link, frequency information for a backhaul link, panel information for a backhaul link, or uplink (UL) / downlink (DL) information. The backhaul link may include the first transport link and the second transport link. The access link may include a third forwarding link and a fourth forwarding link.

[0005] In some embodiments, prior to the network node receiving resource information, the radio communication node may receive capability information of the network node. Capability information can be transmitted to the radio communication node from an operations, administration, and maintenance (OAM) entity. Capability information can be reported from the network node to the radio communication node. Capability information may include at least one of the following: frequency information allocation for access links and / or backhaul links, simultaneous beam operation capability for access links and / or backhaul links, frequency shift capability, or subband non-overlapping full duplex (SBFD) capability.

[0006] In some embodiments, frequency information may include at least one of the following formats: carrier index, passband index, bandwidth portion (BWP) index, subband index, cell identifier (ID), start physical resource block (PRB), start resource element (RE), end PRB, end RE, number of consecutive PRBs, number of REs, RB offset, RE offset, absolute radio frequency channel number (ARFCN), or global synchronous raster channel number (GCSN). Panel information may include at least one of the following formats: panel identifier or index, or antenna group ID or index. Link level on / off information can be used to indicate an on / off status applicable to at least one of the first, second, third, or fourth forwarding links. Beam information for backhaul links may be in one of the following formats: beam index or transmission configuration indication (TCI) state.

[0007] In some embodiments, when beam information for a backhaul link is in the format of TCI states, a list containing one or more TCI states can be configured for a network node to be used for backhaul link beam information indication. The list can be configured for the network node by a radio communication node via at least one of the following: radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. A set of logical reference signals used in the TCI states can be defined for the network node. The set of logical reference signals may be a one-to-one mapping to the physical backhaul link beam. A new type of TCI state may include a logical beam index defined for the network node, the logical beam index may be a one-to-one mapping to the physical backhaul link beam. At least one of the additional information may be indicated in the same radio resource control (RRC) signaling used for periodic beam information indication of the access link. The format for indicating each type of additional information is one in which the additional information is shown in pairs with beam indices for access links configured in the list by RRC signaling, with each access link beam having its associated corresponding additional information, and one field added to indicate the additional information, applicable to all access link beams configured in the list by RRC signaling.

[0008] In some embodiments, at least one of the additional information may be indicated in the same RRC signaling used for semi-persistent beam information indication of the access link. The format of the indication for each type of additional information may be that the additional information is indicated in pairs with beam indices for access links configured in a list by the radio resource control (RRC) signaling, or that one field is added to indicate the additional information and is applicable for all beam indices for access links configured in a list by the RRC signaling. At least one of the additional information may be indicated in the same medium access control element (MAC CE) signaling used for semi-persistent beam indication of the access link. The format of the indication for each type of additional information may be one or more fields added in the MAC CE signaling to indicate one or more additional information, where one or more additional information is a one-to-one mapping to the indicated beam index information for the access link activated in the MAC CE signaling, or one field added to indicate additional information and applicable for all beam index information for the access link activated in the MAC CE signaling.

[0009] In some embodiments, at least one of the additional information may be indicated in the same radio resource control (RRC) signaling and medium access control element (MAC CE) signaling used for semi-persistent beam indication of access links. The format of the indication for each type of additional information may include one field added in the RRC signaling to indicate the additional information and applicable for all beam indices for access links configured in the list by the RRC signaling, and one or more fields added in the MAC CE signaling to update one or more additional information used for specific indicated access link beam information. At least one of the additional information may be indicated in the same downlink control information (DCI) signaling used for aperiodic beam indication of access links. The format of the indication for each type of additional information may be one or more fields added in the DCI signaling to indicate one or more additional information and a one-to-one mapping to the indicated beam index information of the access link, or one field added in the DCI signaling to indicate additional information and applicable to all indicated beam index information of the access link.

[0010] In some embodiments, at least one of the additional information can be indicated in a new signaling. The new signaling may comprise at least one of the following: a radio resource control (RRC) signaling, a media access control element (MAC CE) signaling, or a downlink control information (DCI) signaling. Panel information for an access link can be implicitly indicated by a specific beam index for the access link. Link level on / off information can be implicitly indicated by a specific beam index for the access link. Link level on / off information can be implicitly indicated by a time-division duplex (TDD) configuration.

[0011] In some embodiments, when backhaul link beam information is in the format of transmission configuration indication (TCI) states, a medium access control element (MAC CE) signaling used to activate or deactivate one TCI state for a backhaul link from a radio resource control (RRC) configuration TCI state list for a control link can be reused to indicate one or more TCI states to be activated or deactivated from the RRC configuration TCI state list for the backhaul link, and the control link includes a first control link from a radio communication node to a network node and a second control link from a network node to a radio communication node. Upper-layer parameters can be defined for the network node to distinguish whether the TCI state indicated in the MAC CE signaling is from the RRC configuration TCI state list for the backhaul link or from the RRC configuration beam of the control link. Backhaul link beam information can be indicated in a new signaling comprising at least one of radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. RRC signaling used for periodic and / or semi-permanent access link beam indication can be used to update backhaul link beam information for one or more indicated access link beam indices. A field for backhaul link beam indication can be indicated in a pair with a field for beam indices for access links configured in a list by the RRC signaling. When a field for backhaul link beam indication is not indicated in the RRC signaling for periodic access link beam indication, the backhaul link beam information associated with the corresponding access link beam can refer to the backhaul link beam information indicated in the new signaling.MAC CE signaling used for semi-persistent access link beam indication can be used to update backhaul link beam information for one or more indicated access link beam indices. One or more fields for backhaul link beam indication can be added in MAC CE signaling to update the corresponding backhaul link beam information for one or more indicated access link beams that are activated in MAC CE signaling. When backhaul link beam indication for an access link beam is not updated in MAC CE signaling for semi-persistent access link beam indication, the backhaul link beam information associated with the corresponding access link beam can refer to the backhaul link beam information indicated in the new signaling.

[0012] In some embodiments, a network node may receive a list from a radio communication node containing one or more beam pairs, each beam pair containing a first beam index configured for an access link and a second beam information configured for a backhaul link. Each beam pair in the list may have a corresponding beam pair index. The list can be configured from the radio communication node to the network node via at least one of the following: radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. The list can be configured to the network node via an operations, administration, and maintenance (OAM) entity. Access link beam information in different beam pairs in the list may be identical or different. Backhaul link beam information in different beam pairs in the list may be identical or different. In some embodiments, access link beam information in different beam pairs in the list may be different, and backhaul link beam information in different beam pairs in the list may be identical or different.

[0013] In some embodiments, the access link beam information field can be reinterpreted to indicate a beam pair index. A higher-layer parameter can be configured for a network node to indicate whether the access link beam information field is used to indicate a beam pair index or an access link beam index. Backhaul link beam information can be retrieved from a beam pair list according to the indicated access link beam index. When one or more backhaul link beams are retrieved for an associated indicated access link beam, and the network node supports simultaneous beam transmission over the backhaul link beam, the network node may use the backhaul link beam simultaneously with the associated access link beam. When one or more backhaul link beams are retrieved for an associated indicated access link beam, and the network node does not support simultaneous beam transmission over the backhaul link beam, a predefined rule can be defined for the network node to determine the backhaul link beam information for the associated access link beam. The predefined rules may include at least one of the following: the backhaul link beam corresponding to the associated access link beam defined first in the beam-pair list, or the backhaul link beam corresponding to the associated access link beam defined last in the beam-pair list, or the default backhaul link beam. One or more fields may be added to the medium access control element (MAC CE) signaling of semi-persistent access link beam information to update the backhaul link beam information with respect to the access link beam information activated in the MAC CE signaling. The present invention provides, for example, the following: (Item 1) A wireless communication method, The network node receives resource information from the wireless communication node to be used for at least one of the following: the first, second, third, or fourth transfer link. Includes, A wireless communication method wherein the first transfer link is from the wireless communication node to the network node, the second transfer link is from the network node to the wireless communication node, the third transfer link is from the network node to the wireless communication device, and the fourth transfer link is from the wireless communication device to the network node. (Item 2) The aforementioned resource information is, Beam information for access links, or Additional information, wherein the additional information is, Frequency information for the aforementioned access link, Panel information for the aforementioned access link, Link level on / off information, Beam information for backhaul link, Frequency information for the backhaul link, Panel information for the aforementioned backhaul link, or Uplink (UL) / Downlink (DL) information, Additional information comprising at least one of the following It includes at least one of the following: The backhaul link includes the first transfer link and the second transfer link, and the access link includes the third transfer link and the fourth transfer link. The wireless communication method described in item 1. (Item 3) The wireless communication method according to item 1, wherein the wireless communication node receives capability information of the network node prior to the network node receiving the resource information. (Item 4) The capability information is transmitted from an Operations, Management, and Maintenance (OAM) entity to the wireless communication node using the wireless communication method described in item 3. (Item 5) The wireless communication method described in item 3, wherein the capability information is reported from the network node to the wireless communication node. (Item 6) The aforementioned capability information is, Frequency information allocation for access links and / or backhaul links, Simultaneous beam operation capability relating to the access link and / or the backhaul link, Frequency shift capability, or Subband non-overlapping full duplex (SBFD) capability A wireless communication method as described in item 3, which includes at least one of the following. (Item 7) The radio communication method described in item 2, wherein the frequency information includes at least one of the following formats: carrier index, passband index, bandwidth portion (BWP) index, subband index, cell identifier (ID), start physical resource block (PRB), start resource element (RE), end PRB, end RE, number of consecutive PRBs, number of REs, RB offset, RE offset, absolute radio frequency channel number (ARFCN), or global synchronous raster channel number (GCSN). (Item 8) The wireless communication method described in item 2, wherein the panel information includes at least one of the following formats: a panel identifier or index, or an antenna group ID or index. (Item 9) The wireless communication method according to item 2, wherein the link level on / off information is used to indicate an on / off status applicable to at least one of the first, second, third, or fourth transfer links. (Item 10) The wireless communication method described in item 2, wherein the beam information for the backhaul link is in one of the following formats: beam index or transmission configuration indication (TCI) state. (Item 11) The wireless communication method according to item 10, wherein, when the beam information for the backhaul link is in the format of the TCI states, a list containing one or more TCI states is configured for the network node to be used for backhaul link beam information indication. (Item 12) The wireless communication method described in item 11, configured by the wireless communication node to the network node via at least one of the following: wireless resource control (RRC) signaling, media access control element (MAC CE) signaling, or downlink control information (DCI) signaling. (Item 13) The wireless communication method according to item 11, wherein a set of logical reference signals used in the TCI state is defined for the network node, and the set of logical reference signals is a one-to-one mapping to the physical backhaul link beam. (Item 14) The wireless communication method according to item 11, wherein a new type of TCI state includes a logical beam index defined for the network node, the logical beam index being a one-to-one mapping to a physical backhaul link beam. (Item 15) The wireless communication method according to item 2, wherein at least one of the additional information is indicated in the same radio resource control (RRC) signaling used for periodic beam information indication of the access link. (Item 16) The format of the indication for each type of additional information is: The aforementioned additional information is shown in pairs with beam indices for the access links, which are configured in a list by RRC signaling, and each access link beam has associated corresponding additional information, or One field is added to indicate the aforementioned additional information and is applicable to all access link beams configured in the list by RRC signaling. One of them is the wireless communication method described in item 15. (Item 17) The wireless communication method according to item 2, wherein at least one of the additional information is indicated in the same RRC signaling used for semi-persistent beam information indication of the access link. (Item 18) The format of the indication for each type of additional information is: The additional information is indicated in pairs with beam indices for the access link configured in a list by radio resource control (RRC) signaling, or One field is added to indicate the additional information and is applicable to all beam indices for the access links configured in the list by the RRC signaling. One of them is the wireless communication method described in item 17. (Item 19) The wireless communication method according to item 2, wherein at least one of the additional information is indicated in the same medium access control element (MAC CE) signaling used for semi-persistent beam indication of the access link. (Item 20) The format of the indication for each type of additional information is: One or more fields are added in the MAC CE signaling to indicate one or more additional information, wherein the one or more additional information is a one-to-one mapping to the beam index information indicating the access link that is activated in the MAC CE signaling, or One field is added to indicate the additional information and is applicable for all beam index information of the access link that is activated in the MAC CE signaling. One of them is the wireless communication method described in item 19. (Item 21) The wireless communication method according to item 2, wherein at least one of the additional information is indicated in the same radio resource control (RRC) signaling and medium access control element (MAC CE) signaling used for semi-persistent beam indication of the access link. (Item 22) The format of the indication for each type of additional information is: One field is added in the RRC signaling to indicate the additional information and is applicable to all beam indices for the access links configured in the list by the RRC signaling. One or more fields are added in the MAC CE signaling to update one or more additional information used for specific indicated access link beam information. The wireless communication methods described in item 21, including the wireless communication methods described in item 21. (Item 23) The wireless communication method according to item 2, wherein at least one of the additional information is indicated in the same downlink control information (DCI) signaling used for aperiodic beam indication of the access link. (Item 24) The format of the indication for each type of additional information is: One or more fields are added in the DCI signaling to indicate the one or more additional information, and are a one-to-one mapping to the beam index information indicated for the access link, or One field is added in the DCI signaling to indicate the additional information and is applicable for all indicated beam index information of the access link. One of them is the wireless communication method described in item 23. (Item 25) The wireless communication method described in item 2, wherein at least one of the additional information is indicated in a new signaling that comprises at least one of a radio resource control (RRC) signaling, a media access control element (MAC CE) signaling, or a downlink control information (DCI) signaling. (Item 26) The wireless communication method according to item 2, wherein the panel information for the access link is implicitly indicated by a specific beam index for the access link. (Item 27) The wireless communication method according to item 2, wherein the link level on / off information is implicitly indicated by a specific beam index for the access link. (Item 28) The link level on / off information is implicitly indicated by a time-division duplex (TDD) configuration, as described in item 2, in the wireless communication method. (Item 29) The wireless communication method according to item 2 or 11, wherein when backhaul link beam information is in the format of transmission configuration indication (TCI) states, a medium access control element (MAC CE) signaling used to activate or deactivate one TCI state for the backhaul link from the radio resource control (RRC) configuration TCI state list of the control link is reused to indicate one or more TCI states to be activated or deactivated from the RRC configuration TCI state list for the backhaul link, and the control link includes a first control link from the wireless communication node to a network node and a second control link from the network node to a wireless communication node. (Item 30) The wireless communication method according to item 29, wherein upper-layer parameters are defined for the network node to distinguish whether the indicated TCI state in the MAC CE signaling is from the RRC configuration TCI state list of the backhaul link or from the RRC configuration beam of the control link. (Item 31) The wireless communication method described in item 2, wherein backhaul link beam information is indicated in a new signaling comprising at least one of radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. (Item 32) The radio communication method described in item 31, wherein the RRC signaling used for periodic and / or semi-permanent access link beam indication is used to update the backhaul link beam information with respect to one or more indicated access link beam indices. (Item 33) The wireless communication method according to item 32, wherein a field for backhaul link beam indication is indicated in a pair with a field for beam index for the access link, which is configured in a list by the RRC signaling. (Item 34) The wireless communication method according to item 31 or 33, wherein when the field of backhaul link beam indication is not indicated in the RRC signaling for periodic access link beam indication, the backhaul link beam information associated with the corresponding access link beam refers to the backhaul link beam information indicated in the new signaling. (Item 35) The wireless communication method described in item 31, wherein the MAC CE signaling used for the semi-persistent access link beam indication is used to update the backhaul link beam information with respect to one or more indicated access link beam indices. (Item 36) The wireless communication method according to item 35, wherein one or more fields for backhaul link beam indication are added in the MAC CE signaling to update the backhaul link beam information relating to one or more access link beams that are activated in the MAC CE signaling. (Item 37) The wireless communication method according to item 31 or 36, wherein when the backhaul link beam indication for an access link beam is not updated in the MAC CE signaling for a semi-persistent access link beam indication, the backhaul link beam information associated with the corresponding access link beam refers to the backhaul link beam information shown in the new signaling. (Item 38) The network node receives from the wireless communication node a list containing one or more beam pairs, each of which includes a first beam index configured for the access link and a second beam information configured for the backhaul link. The wireless communication methods described in item 1, further including the methods described in item 1. (Item 39) The wireless communication method described in item 38, wherein each beam pair in the aforementioned list has a corresponding beam pair index. (Item 40) The wireless communication method described in item 38, comprising the wireless communication node to the network node via at least one of the following: wireless resource control (RRC) signaling, media access control element (MAC CE) signaling, or downlink control information (DCI) signaling. (Item 41) The aforementioned list includes the wireless communication method described in item 38, configured for the network node via an Operations, Management, and Maintenance (OAM) entity. (Item 42) The wireless communication method described in item 38, wherein the access link beam information for different beam pairs in the aforementioned list is identical or different, and the backhaul link beam information for different beam pairs in the aforementioned list is identical or different. (Item 43) The wireless communication method described in item 38, wherein the access link beam information for different beam pairs in the aforementioned list is different, and the backhaul link beam information for different beam pairs in the aforementioned list is the same or different. (Item 44) The wireless communication method described in item 39, wherein the access link beam information field is reinterpreted to be used to indicate the beam-pair index. (Item 45) The wireless communication method according to item 44, wherein a higher-layer parameter is configured for the network node to indicate whether the access link beam information field is used to indicate the beam pair index or the access link beam index. (Item 46) The wireless communication method according to either item 42 or 43, wherein the backhaul link beam information is obtained directly from the beam pair list according to the indicated access link beam index. (Item 47) The wireless communication method according to item 46, wherein more than one backhaul link beam is acquired for the associated indicated access link beam, and the network node supports simultaneous beam transmission on the backhaul link beam, the network node uses the backhaul link beam simultaneously with the associated access link beam. (Item 48) The wireless communication method according to item 46, wherein when one or more backhaul link beams are acquired for an associated indicated access link beam, and the network node does not support simultaneous beam transmission on the backhaul link beam, a predefined rule is defined for the network node to determine the backhaul link beam information relating to the associated access link beam. (Item 49) The aforementioned predefined rules are: The backhaul link beam corresponding to the associated access link beam, which is first defined in the beam pair list, The backhaul link beam corresponding to the associated access link beam defined last in the beam pair list, or Default backhaul link beam A wireless communication method as described in item 48, comprising at least one of the following. (Item 50) A wireless communication method according to any one of items 44 and 46, wherein one or more fields are added to the medium access control element (MAC CE) signaling of semi-persistent access link beam information to update the backhaul link beam information with respect to access link beam information activated in MAC CE signaling. [Brief explanation of the drawing]

[0014] Various exemplary embodiments of this solution are described in detail below with reference to the following figures or drawings. The drawings are provided for illustrative purposes only and merely depict exemplary embodiments of this solution to facilitate the reader's understanding of this solution. Therefore, the drawings should not be considered as limitations on the scope, scope, or applicability of this solution. Note that these drawings are not necessarily drawn to scale for clarity and ease of illustration.

[0015] [Figure 1] Figure 1 illustrates an exemplary cellular communication network in which the techniques disclosed herein may be implemented according to several embodiments of this disclosure.

[0016] [Figure 2] Figure 2 illustrates block diagrams of exemplary base stations and user equipment devices according to several embodiments of the present disclosure.

[0017] [Figure 3A] Figures 3A-3E illustrate relevant aspects of resource information indication in several embodiments of the present disclosure. [Figure 3B] Figures 3A-3E illustrate relevant aspects of resource information indication in several embodiments of the present disclosure. [Figure 3C] Figures 3A-3E illustrate relevant aspects of resource information indication in several embodiments of the present disclosure. [Figure 3D] Figures 3A-3E illustrate relevant aspects of resource information indication in several embodiments of the present disclosure. [Figure 3E] Figures 3A-3E illustrate relevant aspects of resource information indication in several embodiments of the present disclosure.

[0018] [Figure 4] Figure 4 illustrates a conceptual model of a network-controlled repeater (NCR) according to several embodiments of the present disclosure.

[0019] [Figure 5] Figure 5 illustrates some embodiments of subband non-overlapping full duplex (SBFD) according to several embodiments of the present disclosure.

[0020] [Figure 6] Figure 6 illustrates a flowchart of an exemplary method for resource information indication according to several embodiments of the present disclosure. [Modes for carrying out the invention]

[0021] Detailed explanation 1. Mobile communication technologies and environment Figure 1 illustrates an exemplary wireless communication network and / or system 100 in which the techniques disclosed herein may be implemented according to one embodiment of the present disclosure. In the following discussion, the wireless communication network 100 may be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and will be referred to herein as “Network 100”. Such exemplary Network 100 includes a base station 102 (hereinafter referred to as “BS102” or also as a wireless communication node), user equipment devices 104 (hereinafter referred to as “UE104” or also as wireless communication devices) that can communicate with each other via a communication link 110 (e.g., a wireless communication channel), and clusters of cells 126, 130, 132, 134, 136, 138, and 140 that overlay a geographical area 101. In Figure 1, BS102 and UE104 are contained within the individual geographical boundaries of cell 126. The other cells 130, 132, 134, 136, 138, and 140 may each include at least one base station that operates within its allocated bandwidth and provides adequate radio coverage to its intended users.

[0022] For example, BS102 may operate within an allocated channel transmission bandwidth and provide adequate coverage to UE104. BS102 and UE104 may communicate via downlink radio frames 118 and uplink radio frames 124, respectively. Each radio frame 118 / 124 may be further divided into subframes 120 / 127, which may include data symbols 122 / 128. In this disclosure, BS102 and UE104 are generally described herein as non-limiting embodiments of a “communication node” capable of practicing the methods disclosed herein. Such a communication node may be capable of wireless and / or wired communication according to various embodiments of the solution.

[0023] Figure 2 illustrates a block diagram of an exemplary wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to several embodiments of the present solution. The system 200 may include components and elements configured to support known or conventional operating features that do not need to be described in detail herein. In one exemplary embodiment, the system 200 can be used to communicate (e.g., transmit and receive) data symbols within a wireless communication environment such as the wireless communication environment 100 in Figure 1, as described above.

[0024] The system 200 generally includes a base station 202 (hereinafter, "BS202") and a user equipment device 204 (hereinafter, "UE204"). The BS202 includes a BS (base station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each module being coupled and interconnected to one another via a data communication bus 220 as needed. The UE204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each module being coupled and interconnected to one another via a data communication bus 240 as needed. The BS202 communicates with the UE204 via a communication channel 250, which may be any radio channel or other medium suitable for data transmission as described herein.

[0025] As will be understood by those skilled in the art, System 200 may further include any number of modules other than those shown in Figure 2. Those skilled in the art will understand that various illustrative blocks, modules, circuits, and processing logic described in relation to the embodiments disclosed herein can be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate the interchangeability and compatibility of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are generally described in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software may depend on the specific application and the design constraints imposed on the overall system. Those skilled in the art familiar with the concepts described herein may implement such functionality in a manner suitable for each specific application, but such implementation decisions should not be construed as limiting the scope of this disclosure.

[0026] According to some embodiments, the UE transceiver 230 may be referred to herein as an "uplink" transceiver 230, comprising a radio frequency (RF) transmitter and an RF receiver, each having a network coupled to an antenna 232. A duplex switch (not shown) may, alternatively, couple the uplink transmitter or receiver to the uplink antenna in a time-duplex configuration. Similarly, according to some embodiments, the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210, comprising an RF transmitter and an RF receiver, each having a network coupled to an antenna 212. A downlink duplex switch may, alternatively, couple the downlink transmitter or receiver to the downlink antenna 212 in a time-duplex configuration. The operation of the two transceiver modules 210 and 230 may be time-coordinated so that the uplink receiver network is coupled to the uplink antenna 232 for receiving transmissions over the radio transmission link 250, while the downlink transmitter is coupled to the downlink antenna 212 at the same time. Conversely, the operation of the two transceivers 210 and 230 may be time-coordinated such that the downlink receiver couples to the downlink antenna 212 for receiving transmissions over the radio transmission link 250, while the uplink transmitter couples to the uplink antenna 232. In some embodiments, proximity time synchronization exists with a minimum protection time between changes in duplex direction.

[0027] The UE transceiver 230 and base station transceiver 210 are configured to communicate via a radio data communication link 250 and to cooperate with a suitably configured RF antenna array 212 / 232 capable of supporting specific radio communication protocols and modulation schemes. In some illustrative embodiments, the UE transceiver 210 and base station transceiver 210 are configured to support industry standards such as Long-Term Evolution (LTE) and newer 5G standards and equivalents. However, it should be understood that this disclosure is not necessarily limited to specific standards and associated protocols. Rather, the UE transceiver 230 and base station transceiver 210 may be configured to support alternative or additional radio data communication protocols, including future standards or variations thereof.

[0028] According to various embodiments, BS202 may be, for example, an evolved NodeB (eNB), a serving eNB, a target eNB, a femtostation, or a picostation. In some embodiments, UE204 may be embodied in various types of user devices such as mobile phones, smartphones, personal digital assistants (PDAs), tablets, laptop computers, and wearable computing devices. Processor modules 214 and 236 may be implemented or realized using general-purpose processors, content-addressable memory, digital signal processors, application-specific integrated circuits, field-programmable gate arrays, any suitable programmable logic devices, discrete gates or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. Thus, the processor may be realized as a microprocessor, controller, microcontroller, state machine, or equivalent. The processor may also be implemented as a combination of computing devices, for example, a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other combination of such configurations.

[0029] Furthermore, steps of methods or algorithms described in relation to embodiments disclosed herein may be embodied in hardware, firmware, software modules, or any practical combination thereof, which are performed directly by processor modules 214 and 236, respectively. Memory modules 216 and 234 may be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the Art. In this regard, memory modules 216 and 234 may be coupled to processor modules 210 and 230, respectively, so that processor modules 210 and 230 can read information from and write information to memory modules 216 and 234, respectively. Memory modules 216 and 234 may also be integrated into their respective processor modules 210 and 230. In some embodiments, memory modules 216 and 234 may each include cache memory for storing temporary variables or other intermediate information during the execution of instructions to be performed by processor modules 210 and 230, respectively. Memory modules 216 and 234 may also include non-volatile memory for storing instructions that are to be executed by processor modules 210 and 230, respectively.

[0030] The network communication module 218 generally represents the hardware, software, firmware, processing logic, and / or other components of the base station 202 that enable bidirectional communication between the base station transceiver 210 and other network components and communication nodes configured to communicate with the base station 202. For example, the network communication module 218 may be configured to support Internet or WiMAX traffic. In a typical deployment, but not limited to, the network communication module 218 provides an 802.3 Ethernet® interface so that the base station transceiver 210 can communicate with conventional Ethernet®-based computer networks. Thus, the network communication module 218 may include a physical interface for connection to a computer network (e.g., a mobile switching center (MSC)). The terms “configured for,” “configured to,” and their inflections as used herein with respect to a specified operation or function refer to a device, component, circuit, structure, machine, signal, etc., that is physically constructed, programmed, formatted, and / or arranged to perform a specified operation or function.

[0031] The Open System Interconnection (OSI) model (hereinafter referred to as the “Open System Interconnection Model”) is a conceptual and logical layout that defines network communications used by systems (e.g., wireless communication devices, wireless communication nodes) that are open to interconnecting and communicating with other systems. The model is divided into seven subcomponents or layers, each representing a conceptual set of services provided in the layers above and below it. The OSI model also effectively describes computer packet transfer by defining a logical network and using different layer protocols. The OSI model may also be referred to as the 7-layer OSI model or the 7-layer model. In some embodiments, the first layer may be the physical layer. In some embodiments, the second layer may be the medium access control (MAC) layer. In some embodiments, the third layer may be the radio link control (RLC) layer. In some embodiments, the fourth layer may be the packet data convergence protocol (PDCP) layer. In some embodiments, the fifth layer may be the radio resource control (RRC) layer. In some embodiments, the sixth layer may be a Non-Accessible System (NAS) layer or an Internet Protocol (IP) layer, and the seventh layer may be any other layer.

[0032] Various exemplary embodiments of this solution are described below with reference to accompanying drawings to enable those skilled in the art to fabricate and use this solution. As will be obvious to those skilled in the art, after careful reading of this disclosure, various changes or modifications of the embodiments described herein can be made without departing from the scope of this solution. Therefore, this solution is not limited to the exemplary embodiments and uses described and illustrated herein. In addition, the particular order or hierarchy of steps in the methods disclosed herein is merely an exemplary approach. Based on design preferences, the particular order or hierarchy of steps in the disclosed methods or processes can be rearranged while remaining within the scope of this solution. Therefore, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or actions in a sample order, and that this solution is not limited to the particular order or hierarchy presented unless expressly stated otherwise. 2. Systems and methods for resource information indication

[0033] As new radio (NR) systems move to higher frequencies (above approximately 4 GHz for FR1 deployments and above 24 GHz for FR2 deployments), propagation conditions degrade compared to lower frequencies, exacerbating coverage challenges. As a result, further cell densification may be required. While a typical full-stack cell deployment is preferable, this is not always possible (e.g., lack of backhaul availability) or may not be an economically viable option. To provide blanket coverage in cellular network deployments at relatively low cost, RF repeaters with full duplex amplification and forwarding operation may be used in 2G, 3G, and 4G systems. However, a major problem with RF repeaters is that they amplify both signal and noise, increasing interference in the system.

[0034] To address this problem, a network-controlled repeater (NCR) can be considered. The NCR may be capable of receiving and processing side-control information (SCI) from the network. Some resource information may be utilized to control the NCR's forwarding operation, as indicated to the NCR.

[0035] Furthermore, reconfigurable intelligent surfaces (RISes) can also be considered to enable controllable transfer. In such cases, the resource information indication discussed herein may also be applicable to the RIS. The RIS may have a number of controllable reflective elements, which may be divided into element groups to facilitate efficient control. Each element group SCI may employ the resource information discussed herein as part of the SCI.

[0036] This disclosure proposes a method for resource information indication used for NCR transmission operations in a wireless network. The method included in this disclosure is not limited to NCRs and may also be applicable to smart repeaters, extended RF repeaters, reconfigurable intelligent surfaces (RISs), and / or wireless access backhaul integrated transmissions (IABs).

[0037] Figures 3A-3E illustrate relevant aspects of resource information indication in several embodiments of the present disclosure.

[0038] RF repeaters can be used in 2G, 3G, and 4G deployments to complement the coverage provided by typical full-stack cells with varying transmission power characteristics. RF repeaters can be the simplest and most cost-effective way to improve network coverage. Major advantages of RF repeaters may include low cost, easy deployment, and the fact that they cannot increase latency. A major disadvantage is that RF repeaters can amplify signals and / or noise, which can contribute to increased interference (e.g., pollution) in the system. RF repeaters may not have beam management capabilities, meaning / indicating that they cannot provide beamforming gain in their signal transmission. Within RF repeaters, different categories may exist depending on the power characteristics and the amount of spectrum configured to be amplified (e.g., single-band or multi-band). RF repeaters can be non-regenerative relay nodes capable of amplifying and transmitting everything they receive. RF repeaters can be fully duplex nodes, and it is impossible to distinguish between uplink (UL) and downlink (DL) in terms of transmission and / or reception. With increasing traffic demand, interest in new communication paradigms for future 5G / 5G and beyond wireless networks may grow.

[0039] The NCR can be located at a selected location with good radio channel conditions to the BS (e.g., with an LOS path). Once the NCR is activated, a network integration procedure can be performed. Through this network integration procedure, the BS can identify the NCR as a network node and configure the NCR for its subsequent amplification and forwarding operations. After integration is complete, the NCR can use the control information received from the BS to perform amplification and forwarding operations for the UE in its coverage.

[0040] From a functional standpoint, the structure of the NCR is provided in Figure 4. Figure 4 is a structure illustrating a conceptual model of a network-controlled repeater (NCR) according to several embodiments of the present disclosure. The NCR controller maintains a control link (C-link) between the BS and the NCR, enabling information exchange and, for example, can carry side control information (SCI). The NCR-RU radio unit (RU) can transfer data between the BS and the UE using transport links (F-links), which include F-links for backhaul (referred to as F-links 1 and 2 or backhaul links) and F-links for access (referred to as F-links 3 and 4 or access links). The behavior of the F-links can be controlled according to the SCI received from the BS.

[0041] To facilitate the NCR's transfer operation, control information, including beam information in particular, can be utilized for the NCR. The following agreements can be achieved with respect to the side control information indication of the NCR.

[0042] Beam Indication for Access Links: For each periodic beam indication of an access link, RRC signaling can be used to construct a list of transfer resources, each transfer resource can be defined as {beam index, time resource}. Each time resource can be defined using a dedicated field by {start slot defined as a slot offset in one period, start symbol defined by a symbol offset within the slot, duration defined by the number of symbols}. Periodicity can be configured as part of the RRC signaling for periodic beam indications, and the same periodicity can be assumed for all time resources in one periodic beam indication. A reference SCS can be configured as part of the RRC signaling for periodic beam indications, and the same reference SCS can be assumed for all time resources in one periodic beam indication. For each non-periodic beam indication of an access link, a list of time resources can be predefined by RRC signaling. Each time resource can be defined using a dedicated field by {start slot defined as a slot offset, start symbol defined by a symbol offset within the slot, duration defined by the number of symbols}. The new DCI signaling may be used in conjunction with one or more fields to indicate beam information, each field referencing one beam index, and may also be used in conjunction with one or more fields to indicate time resources defined by the RRC. Time indications and beam indications in the DCI signaling may be sequentially associated with one-to-one mappings. With respect to semi-persistent beam indications for access links, the RRC may constitute one or more lists of transport resources, each list may contain one or more transport resources, each transport resource may be defined by {beam index, time resource}.Each time resource can be defined using a dedicated field by {start slot defined as a slot offset in one period, start symbol defined by a symbol offset within the slot, and duration defined by the number of symbols}. Periodicity and reference SCS can be configured as part of the RRC signaling for each list of transport resources. A new MAC-CE can be used to activate / deactivate one of all configured lists in the RRC, and thus all transport resources in this list can be selected. MAC-CE signaling can also optionally provide updates regarding the beam index in the transport resources.

[0043] Beam Indication for Backhaul Links: With respect to backhaul links, semi-static beam indication can be considered. When the beam indication framework is used for NCR-MT, DL beams can be indicated by a new MAC CE to select one of the TCI state IDs from the RRC configuration list of the beam for the C link, while UL beams can be indicated by an SRI on the C link via new MAC CE signaling. When a different beam indication framework is used for NCR-MT, DL and UL beams can be indicated by a new MAC CE to select one of the TCI state IDs from the RRC configuration list of the beam for the C link.

[0044] NCR-Fwd On / Off Indication: The "on" state of NCR-Fwd can be implicitly indicated via access link beam indication (for example, if AC link beam indication is present, NCR can be assumed to be on across the indicated time-domain resource associated with the corresponding beam). The backhaul link may follow the access link in terms of on / off.

[0045] Subband Non-Overlapping Full Duplex (SBFD): SBFD is a novel duplex mode in which the TDD carrier is subdivided into subbands, enabling simultaneous transmission and reception in the same slot. Figure 5 illustrates an embodiment of subband non-overlapping full duplex (SBFD) according to several embodiments of the present disclosure. In Figure 5, the UL subband (SB) can be supported to be configured in the DL and / or flexible symbol / slot. Implementation Example 1: Content of resource information that can be used for NCR transfer operations as shown.

[0046] In this disclosure, beam information for an access link can be indicated to the NCR by the beam signaling system (BS) in order to enable and control the NCR's transfer operation. The beam indication method for the NCR's access link may include periodic beam indication, semi-permanent beam indication, and / or non-periodic beam indication. In addition to beam information for the access link, at least one of the following pieces of information is also used to be indicated to the NCR by the BS:

[0047] (1) Frequency information for an access link may be used to indicate the frequency resources for the access link. For example, when an NCR-Fwd has multiple carriers / bandwidths for an access link, the frequency information may be provided to the NCR and indicate the carriers / bandwidths that can be used when the NCR transmits signals over the access link.

[0048] (2) Panel information for access links may be used to indicate panel information for access links. For example, if NCR-Fwd has multiple panels / TRPs for access links, panel information may also be indicated.

[0049] (3) Link-level on / off information can be used to indicate the on / off state of one or more links. In this disclosure, the “on” state of the NCR-Fwd is implicitly indicated via access link beam indication, and the backhaul link follows the access link in terms of on / off state, so that if the access link has beam indication and is “on” in terms of the corresponding time resource, the backhaul link can also remain “on”. However, sometimes link-level on / off can be used for certain cases. For example, to measure self-interference, the access link may remain “on” while the backhaul link needs to remain “off” for a certain duration. In another embodiment, to achieve UL-only transfer, transfer links 2+4 may be “on” while transfer links 1+3 may remain “off”. Thus, link-level on / off indication can be used to achieve link-level on / off for the NCR-Fwd.

[0050] (4) Beam information for backhaul links may represent beam information that can be used for the transfer operation of the NCR for backhaul links. In this disclosure, since the C-link and backhaul links operate in the same bandwidth, beam information indication for backhaul links may share the same spatial filter of the C-link, and therefore beam information for backhaul links may share the same RRC configuration of the beam for the C-link, or reuse the SRI of the C-link. However, in some cases the spatial filter of the C-link cannot be shared with the backhaul link, which means that the RRC configuration of the beam for the C-link cannot be shared with the backhaul link. For example, when the C-link and backhaul links operate in different bandwidths (e.g., the C-link operates in FR1 while the backhaul link operates in FR2), or when the C-link and backhaul links operate in different panels, or when the NCR-MT and NCR-Fwd are in different locations, the RRC configuration list of the TCI state for the C-link cannot be shared with the backhaul link. In such a method, a new beam indication method for backhaul links can be considered.

[0051] (5) Frequency information for the backhaul link may be used to indicate the frequency resources used for the backhaul link. For example, when the NCR-Fwd has multiple carriers / bandwidths for the backhaul link, the frequency information used for the forwarding operation of the backhaul link may be indicated to the NCR.

[0052] (6) Panel information for backhaul links may be used to indicate panel information used for backhaul links. For example, when the NCR-Fwd has multiple panels / TRPs for backhaul links, the panel information used for the transfer operation of the backhaul links may also be shown to the NCR.

[0053] (7) UL / DL information for access links and / or backhaul links may be used to indicate access link beam indication and / or directional information for backhaul link beams. For example, when NCR-Fwd supports subband non-overlapping full duplex, this may indicate / mean that NCR-Fwd can operate DL and UL transfers simultaneously on the access link between SBFD symbols / slots. In such a way, NCR-Fwd may understand that the indicated beam on the SBFD symbol / slot is to be used for DL ​​or UL transfer, and therefore UL / DL information may be utilized. Implementation Example 2: How to inform BS of NCR capability information

[0054] As introduced in Implementation Example 1, frequency information, panel information for access links and / or backhaul links, and backhaul link beam information may also be shown in association with the access link beam information from the BS to the NCR. Prior to indication, the BS may have capability information about the frequency information and / or panel information and / or backhaul link beam information of the NCR-Fwd. In such cases, the following aspects may be considered:

[0055] Side 1: How BS obtains capability information Option 1: Capability information can be configured in BS via OAM. Option 2: Capability information can be reported from NCR to BS.

[0056] Aspect 2: Content that ability information may contain Capability information related to frequency information may include at least one of the following: (1) the number of frequency resources supported on the NCR-Fwd for access links and / or backhaul links; (2) the number of frequency resources for simultaneous transmission supported on the NCR-Fwd for access links and / or backhaul links; (3) frequency deviation capability; (4) frequency information allocation for access links and / or backhaul links; or (5) SBFD capability. Regarding the number of frequency resources for simultaneous transmission supported on the NCR-Fwd, the frequency resources may be carriers, BWPs, or passbands. Regarding frequency deviation capability, frequency deviation capability can be used to indicate whether the NCR-Fwd supports frequency deviation on access links and / or backhaul links. Regarding SBFD capability, SBFD capability can be used to indicate whether the NCR-Fwd can support SBFD on access links and / or backhaul links. With regard to frequency information allocation for access links and / or backhaul links, the frequency information allocation for access links and / or backhaul links may be a subband or passband allocation for access links and / or backhaul links. The capability information related to the panel information may include at least one of the following: (1) the number of panels supported on the NCR-Fwd or (2) the number of panels for simultaneous transmission supported on the NCR-Fwd. With respect to the number of panels supported on the NCR-Fwd, the number of panels may be the panel information supported on the NCR-Fwd for access links and / or backhaul links, respectively. With respect to the number of panels for simultaneous transmission supported on the NCR-Fwd, the number of panels for simultaneous transmission supported on the NCR-Fwd may be the concurrently operating panel information supported on the NCR-Fwd for access links and / or backhaul links, respectively. Capability information relating to beam information for access links and / or backhaul links may include at least one of the following: (1) the number of beams supported for backhaul links and / or access links; (2) the number of beams that can be simultaneously transmitted for backhaul links and / or access links; (3) beam arrays / associations for backhaul links and / or access links; (4) beams used for backhaul links and / or access links; (5) the number of beams used for backhaul links and / or access links; or (6) beam indices for backhaul links and / or access links. Implementation Example 3: Formatting and Interpretation of Resource Information

[0057] As discussed above, resource information may have either explicit or implicit indications. When explicit indications are considered, the format of the resource information may have the following options, respectively:

[0058] (1) The format and interpretation of the frequency information may include at least one of the following options, the options below may be applicable to both the access link frequency information and the backhaul link frequency information. Option 1: Use a logical index to display frequency information. -Example 1: In some embodiments, when multiple carriers or multiple bandwidths are considered with respect to the NCR-Fwd, the logical index can be interpreted as one of the carrier index, passband index, or bandwidth portion (BWP) index. For example, in an NR system, a dedicated BWP for each NCR can be configured. For example, if NBWP = 4, 2 bits can be used for the BWP index. Similarly, the bit size can be determined when multiple carriers are configured. -Example 2: In some embodiments, when NCR-Fwd supports SBFD, logical indexes can be interpreted as subband indexes. -Example 3: In some embodiments, a logical index can be interpreted as a cell ID or cell index. For example, when multiple carriers or multiple bands are considered with respect to NCR-Fwd, a single carrier can be used as an S cell. In such a way, the cell ID can be used to indicate frequency information in order to indicate different carriers with respect to beam information. Option 2: Start PRB and / or start RE + end PRB and / or end RE. Option 3: Starting PRB and / or starting RE + number of consecutive PRBs and / or number of consecutive REs. Option 4: Absolute Radio Frequency Channel Number (ARFCN). Option 5: Global Synchronized Raster Channel Number (GCSN). Option 6: An offset value of one or more from a reference or specific frequency information. For example, if BS wishes to indicate the frequency information of an access link, the reference frequency information may be predefined frequency information or the frequency information of a backhaul link. If the frequency information for an access link is indicated in the NCR, the reference information for the DL frequency information and UL frequency information of the access link may be the same or different. If the frequency information for a backhaul link is indicated in the NCR, the reference information for the DL frequency information and UL frequency information of the backhaul link may be the same or different. The offset value may be positive or negative. In some embodiments, if the frequency information for an access link is indicated in the NCR, there may be the same or different indicated offset values ​​for the DL and UL frequency information for the access link. If the frequency information for a backhaul link is indicated in the NCR, there may be the same or different indicated offset values ​​for the DL and UL frequency information for the backhaul link. In some embodiments, the format of the offset value may be a number of PRBs and / or a number of REs. -Example 1: Frequency information can be fixed with respect to the backhaul link. Thus, the BS can provide the NCR with the frequency information of the access link. The frequency information of the backhaul link can be treated as reference information, and therefore one or more offset values ​​are provided to the NCR from the OAM or BS for the frequency information indication of the access link. In some embodiments, if the frequency information for DL ​​and UL of the access link is different, two offset values ​​can be provided to the NCR. The offset values ​​can be positive or negative. For example, if the frequency information of the backhaul link is f0, two positive offset values ​​delta1 and delta2 can be provided to the NCR with respect to DL and UL, respectively. The frequency information used for DL ​​transmission of the access link may be f0 + delta1, and the frequency information used for UL reception of the access link may be f0 + delta2. In other embodiments, a positive value delta1 and a negative value delta2 can be provided to the NCR with respect to DL and UL, respectively. Thus, the frequency information used for DL ​​transmission of the access link may be f0 + delta1, and the frequency information used for UL reception of the access link may be f0 - delta2. In other embodiments, if the frequency information for DL ​​and UL of the access link is the same, one offset value may be indicated in the NCR. -Example 2: The frequency information of the access link can be fixed. Therefore, the frequency information can be shown to the NCR by treating the access link beam information as a reference point. For example, the frequency information of the access link is f1 and may be the same with respect to DL and UL. If the frequency information for DL ​​and UL of the backhaul link is the same, one offset value can be shown to the NCR. -Example 3: The frequency information for the backhaul link can be fixed. The frequency information for DL ​​may be f0. The frequency information for UL may be f1. Thus, when indicating access link frequency information, if the DL and UL frequency information for the access link are different, the reference information for the DL transmission and UL reception of the access link may be different. For example, the reference information for the DL transmission of the access link may be the DL frequency information of the backhaul link, while the reference information for the UL reception of the access link may be the UL frequency information of the backhaul link. Thus, two positive offset values ​​delta1 and delat2 can be indicated for the DL and UL of the access link, respectively. Therefore, the frequency information used for DL ​​transmission of the access link may be f0 + delat1, and the frequency information used for UL transmission of the access link may be f1 + delta2. -Example 4: The frequency information of the backhaul link can be fixed as f0. The frequency information of the backhaul link can be treated as reference information, and therefore one or more offset values ​​can be indicated from the OAM or BS to the NCR for the frequency information indication of the access link. In some embodiments, if the frequency information for the DL and UL of the access link is different, two offset values ​​delat1 and delta2 can be indicated to the NCR for the DL and UL of the access link, respectively. In some embodiments, the indicated offset values ​​may be integer values ​​that do not represent positive or negative. The frequency information of the access link can be obtained by a default rule or a predefined rule which can add the offset value to the reference frequency information or subtract the indicated offset value from the reference frequency information. Therefore, if the default rule is that the access link frequency information is obtained by adding the indicated offset value to the reference frequency information, then the frequency information for the DL and UL of the access link is f0+delta1 and f0+delta2, respectively. In some embodiments, the upper-level parameters can be configured from BS to NCR to indicate whether the frequency information of the access link is obtained by adding or subtracting an offset value from the reference frequency information.

[0059] In some embodiments, the starting PRB, ending PRB, number of consecutive PRBs, starting RE, ending RE, and number of REs can be indicated by PRB numbers and RE numbers, respectively. In addition, the starting PRB and ending PRB can also be indicated by an offset from a reference point (e.g., point A).

[0060] (2) The format and interpretation of the panel information may include at least one of the following options, the following options may be applicable to both access link panel information and backhaul link panel information. Option 1: Panel ID / index. Option 2: Antenna group ID / index.

[0061] (3) The format and interpretation of the link level on / off information may include at least one of the following options: Option 1: The new field can be used to indicate the on / off status of at least one of the following links: transfer link 1, transfer link 2, transfer link 3, or transfer link 4.

[0062] The following examples are given to provide further illustration of the interpretation of this field. -Example 1: The new field may have 1 bit. In some embodiments, a bit value of 0 may represent the off state of an access link (e.g., transfer links 3 and 4), and a bit value of 1 may represent the off state of a backhaul link (e.g., transfer links 1 and 2). In other embodiments, a bit value of 1 may represent the off state of an access link (e.g., transfer links 3 and 4), and a bit value of 0 may represent the off state of a backhaul link (e.g., transfer links 1 and 2). -Example 2: The new field may have 2 bits, and different values ​​may represent different on / off states for different links. In some embodiments, bit value 0 represents that only transfer link 1 is "on", bit value 1 represents that only transfer link 2 is "on", bit value 2 represents that only transfer link 3 is "on", and bit value 4 represents that only transfer link 4 is "on". -Example 3: The new field may have 2 bits, and different values ​​may represent different on / off states for different combinations of links. In some embodiments, bit value 0 represents that only transfer links 1 and 2 are "on", bit value 1 represents that only transfer links 3 and 4 are "on", bit value 2 represents that only transfer links 1 and 3 are "on", and bit value 3 represents that only transfer links 2 and 4 are "on". In other embodiments, bit value 0 represents that transfer links 1 and 2 are "off", bit value 1 represents that transfer links 3 and 4 are "off", bit value 2 represents that transfer links 1 and 3 are "off", and bit value 3 represents that transfer links 2 and 4 are "off".

[0063] (4) The format and interpretation of beam information for backhaul links may include at least one of the following options: • Option 1: Beam Index. The backhaul link can also use a beam index to represent beam information. • Option 2: TCI status. The backhaul link can use TCI status to represent beam information. Since the RRC configuration of TCI status for the C link cannot be shared with respect to the backhaul link, a dedicated TCI status list for the backhaul link can be configured for BS to NCR-Fwd via at least one of RRC, MAC CE, or DCI signaling, or via OAM. However, since no dedicated reference signal is used for the backhaul link, the following options can be considered regarding the format of TCI status configured for the backhaul link. -Alternative 2.1: The current format of the TCI state can be reused, and a set of logical reference signal (e.g., CSI-RS) indices / IDs can be defined for the NCR-Fwd by the BS or by the OAM. The defined logical reference signal indices / IDs can be mapped to the corresponding forward beams of the NCR-Fwd for the backhaul link, and the mapping relationship may be indicated to the NCR-Fwd by the BS via at least one of RRC, MAC CE, or DCI signaling, or to the NCT-Fwd and / or BS via the OAM. In such a manner, the logical reference signal IDs can be used in the TCI state configured for the backhaul link. -Alternative 2.2: A new type of TCI state may be defined to indicate beam information for backhaul links. The format of the new type of TCI state may directly include a logical index / ID instead of a reference signal with QCL type D. The logical index / ID may be mapped to the forward beam of the NCR-Fwd on the backhaul link. This new type of TCI state may be applicable only to NCRs, which are absent with respect to UEs.

[0064] (5) The format and interpretation of UL / DL direction information may include at least one of the following options: Option 1: A bit field to indicate the UL / DL direction, applicable for both access links and backhaul links. Option 2: Two separate bit fields, one bit field which can be used to indicate the UL / DL direction for the access link, and the other bit field which can be used to indicate the UL / DL direction for the backhaul link. Implementation Example 4: A method for indicating the above resource information associated with beam indication for an access link.

[0065] Multiple resource information can exist as introduced in Implementation Example 1, and the format of the resource information may have different options as referred to in Implementation Example 3. The signaling of resource information can be considered using the following examples. The resource information referred to in the following examples and options may refer to any of the resource information described in Implementation Example 1. Different resource information may have the same or different signaling options as referred to below.

[0066] Example 1: Resource information can be indicated separately from beam indication for the access link. In such a way, resource information can be indicated via at least one of the following signalings, which is separate from beam indication for the access link: radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. Combinations of different layer signalings may also be considered as a possibility to save on signaling costs. Different resource information can be indicated in the same signaling or in different signalings. Option 1: RRC only, MAC CE only, and / or DCI only. Semi-static or common resource information can be configured or indicated via RRC signaling and / or MAC CE signaling, which cannot change frequently. The main benefit is saving on dynamic signaling costs. For example, if common access link frequency information is applied for all beam indications for the access link, this can be configured via RRC signaling and / or MAC CE signaling. Option 2: RRC+MAC CE+DCI, RRC+DCI, MAC CE+DCI, and / or RRC+MAC CE. A set of candidate resource information can be configured via RRC signaling. MAC CE and / or DCI can then be used to activate / deactivate a subset of resource information from the candidate resource set or one of them. For example, a list of TCI states dedicated to beam indication for a backhaul link can be configured via RRC signaling. The format of the TCI states for a backhaul link may refer to Implementation Example 3. One or more of the TCI states can be activated / deactivated from the list via MAC CE signaling. In another embodiment, a list of TCI states for beam indication for a backhaul link can be configured via RRC signaling. One or more of the TCI states can be selected from the list via DCI signaling.

[0067] With respect to backhaul link beam information, since it is in the NCR's backhaul link beam indication, MAC CE signaling can be used to activate / deactivate TCI states from the RRC configuration beamlist of the C-link. In such cases, a list of TCI states dedicated to backhaul link beam indication can be configured via the RRC signaling, and if the format of the TCI states for the backhaul link can refer to Implementation Example 3, then MAC CE signaling can be reused with some interpretation. The TCI states activated or deactivated in this MAC CE signaling may be from a dedicated TCI state list configured for NCR-Fwd. In some embodiments, higher-layer parameters can be defined to distinguish whether the TCI states activated / deactivated in MAC CE signaling are from the RRC configuration beam of the C-link or backhaul link. For example, a bit field can be defined in which bit value 1 may represent that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the backhaul link, and bit value 0 may represent that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the C link (and vice versa). In other embodiments, if this upper layer parameter is configured, it may indicate / mean that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the backhaul link. If it is not configured, it may indicate / mean that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the C link.

[0068] Case 2: Resource information can be explicitly indicated in the same signaling as access link beam indication. Three different beam indication mechanisms for access links (e.g., periodic, aperiodic, and semi-permanent beam indication methods) may exist, and these three beam indication mechanisms may include RRC signaling, MAC CE signaling, and / or DCI signaling. The following options can be considered for signaling resource information together with access link beam indication. Option 1: With respect to periodic and semi-persistent access link beam indication, RRC signaling can be used to construct a list of forwarding resources, where each forwarding resource can be defined as {beam index, time resource}. In such a manner, a new field can be added to the forwarding resource in the RRC signaling to indicate resource information, which may mean that each forwarding resource is defined as {beam index for access link, resource information, time resource}. In some embodiments, the new field may be optional. If this field is not configured, default resource information or predefined resource information can be used for the indicated access link beam if this field is not configured in the forwarding resource. Default resource information or predefined resource information can be configured in the NCR via the Operations, Administration, and Maintenance (OAM) entity. -Example 1: Backhaul link beam information can be indicated in the transfer resource. In such a way, the transfer resource in RRC signaling can be defined as {access link beam index, backhaul link beam information, time resource}. Option 2: With respect to current periodic and semi-persistent access link beam indications, RRC signaling can be used to construct a list of transport resources, where each transport resource can be defined as {beam index, time resource}. In such cases, with respect to the RRC signaling for periodic beam indications and the RRC signaling for semi-persistent beam indications, a new field for resource information indication can be constructed as part of the RRC signaling, where the same resource information can be assumed for all indicated access link beams in one list of transport resources. -Example 1: With respect to periodic beam indication for access links, a field may be added in the corresponding RRC signaling to indicate resource information (e.g., frequency information for access links) applicable to all indicated access link beams in the list, which is analogous to the periodicity and SCS configuration in periodic beam indication. -Example 2: With respect to semi-persistent beam indication for access links, a field may be added in the corresponding RRC signaling to indicate resource information (e.g., panel information for access links) applicable to all indicated access link beams in the list, which is analogous to the periodicity and SCS configuration in semi-persistent beam indication. Furthermore, in this disclosure, with respect to semi-persistent access link beam indication, the RRC signaling may be used to constitute one or more lists of transport resources. Each list may contain one or more transport resources. MAC-CE signaling may be used to activate / deactivate one of all configured lists in the RRC signaling. All transport resources in this list may be selected. MAC-CE signaling may also optionally provide updates regarding beam indices in transport resources. In such a way, in some embodiments, if a new field is added in the RRC signaling and is common to all transport resources in the list, MAC-CE may also optionally provide updates regarding resource information in transport resources to allow flexibility. -Example 3: With respect to backhaul link beam information configured in RRC signaling applicable to all transfer resources in a list, if NCR desires to update backhaul link beams that can be used for some of the transfer resources in the list activated by MAC CE signaling, MAC CE signaling may optionally be used to provide updates regarding backhaul link beams for some of the transfer resources. • Option 3: In this disclosure, with respect to semi-persistent access link beam indication, RRC signaling may be used to constitute one or more lists of transport resources. Each list may consist of one or more transport resources. MAC-CE signaling may be used to activate / deactivate one of all configured lists in the RRC. All transport resources in this list may be selected. The MAC-CE signaling may also optionally provide updates regarding the beam index in the transport resources. In such cases, a new field may be added in the MAC-CE signaling to indicate resource information, and the indicated resource information may be common to all transport resources in the list being activated. Option 4: In this disclosure, with respect to semi-persistent access link beam indication, RRC signaling may be used to constitute one or more lists of forwarding resources. Each list may contain one or more forwarding resources. MAC-CE signaling may be used to activate / deactivate one of all the configured lists in the RRC signaling. All forwarding resources in this list may be selected. MAC-CE signaling may also optionally provide updates on beam indices in forwarding resources. In such cases, one or more fields may be added in the MAC-CE signaling to indicate resource information, which may be a one-to-one mapping to forwarding resources in the list being activated sequentially. The number of fields added in MAC-CE may be the same as the number of forwarding resources in the list being activated. Option 5: In this disclosure, with respect to aperiodic access link beam indication, a list of time resources may be predefined by RRC signaling. New DCI signaling may be used in conjunction with one or more fields to indicate beam information. Each field refers to one beam index, and one or more fields may indicate time resources defined by RRC signaling. One or more beam information fields and one or more time resource fields may be sequentially associated with one-to-one mappings. In such a manner, one or more fields may be added in the DCI signaling to indicate resource information, and the resource information shown may be sequentially associated with access link beam information and time resource information in the DCI signaling using one-to-one mappings. Option 6: In this disclosure, with respect to aperiodic access link beam indication, a list of time resources may be predefined by RRC signaling. New DCI signaling may be used in conjunction with one or more fields to indicate beam information. Each field refers to one beam index, and one or more fields may indicate time resources defined by RRC signaling. One or more beam information fields and one or more time resource fields are sequentially associated with one-to-one mappings. In such a manner, new fields may be added in the DCI signaling to indicate resource information, and the indicated resource information may be applicable to all indicated access link beams and time resources in the DCI signaling. Option 7: In this disclosure, with respect to aperiodic access link beam indication, a list of time resources may be predefined by RRC signaling. A new DCI signaling may be used in conjunction with one or more fields to indicate beam information. Each field refers to one beam index, and one or more fields may indicate time resources defined by RRC signaling. One or more beam information fields and one or more time resource fields are sequentially associated with a one-to-one mapping. In such a manner, new fields may be added in the corresponding RRC signaling to indicate resource information, and the indicated resource information may be applicable for all indicated access link beam and time resource information in the DCI signaling.

[0069] Case 3: Resource information can be configured in a separate signaling from the access link. Beam indication and resource information can be updated within the access link beam indication signaling. As described in Case 1 of Implementation Example 4, resource information can be indicated to the NCR via a signaling different from the access link beam indication, and all the options enumerated in Case 1 of Implementation Example 4 can be considered. In such cases, the following alternatives can be considered to enable flexibility and dynamism. Alternative 1: With respect to periodic access link beam indication and / or semi-persistent access link beam indication, a new field may be added to the RRC signaling transport resource, which may mean that each transport resource is defined as {beam index for access link, resource information, time resource}. This field may be optional. If the NCR wishes to update the corresponding resource information for some transport resources, this field may be configured in the transport resource. If not configured, the resource information associated with the indicated access link beam may refer to resource information in a separate signaling, as described in Example 1 of Implementation Example 4. -Example 1: Backhaul link beam information can be indicated in a new signaling as described in one of the options in Example 1 of Implementation Example 4. This backhaul link beam information can be treated as the initial backhaul link beam. If backhaul link beam information fields are configured for some transport resources, the configured backhaul link beams can be used for those transport resources. For those transport resources that do not have backhaul link beam information fields, the initial backhaul link beam indicated in a dedicated signaling can be used. Alternative 2: Regarding semi-persistent access link beam indication, MAC CE signaling can optionally update resource information for several transport resources in the activated list. -Example 1: Frequency information for access links can be indicated in new signaling as described in one of the options of Example 1 in Implementation Example 4. With respect to semi-persistent access link beam indication, MAC CE signaling may activate a list, and if the frequency information for some transport resources requests a change, MAC CE signaling may be used to update the access link frequency information for some transport resources in the activated list.

[0070] As mentioned in the above options for Examples 1, 2, and 3, MAC CE signaling can be used to update resource information for several transport resources in the RRC list being activated. Thus, the following options can be considered regarding the format of MAC CE signaling for updating resource information. Option 1: One or more fields may be added to the MAC CE signaling to indicate the forwarding resource index, and one or more fields may be added to the MAC CE signaling to indicate updated resource information. The one or more fields for the forwarding resource index and the one or more fields for updated resource information may be sequentially associated with a one-to-many (N≧1) mapping or an N-to-one (N≧1) mapping. In some embodiments, a new field may be added to the MAC CE signaling to indicate whether updated resource information exists in the MAC CE signaling. Option 2: A bitmap may be shown in MAC CE signaling to indicate one or more transfer resources required to update resource information, where each bit in the bitmap may correspond to a transfer resource, and the bit value indicates whether the corresponding transfer resource needs to update its resource information. If one or more transfer resources request resource information updates, one or more fields may be added in MAC CE signaling to indicate the updated resource information for each corresponding transfer resource. For example, a bit value of 1 may indicate that the corresponding transfer resource needs to update its resource information, while a bit value of 0 may indicate that the corresponding transfer resource does not need to update its resource information, and vice versa. For example, if the RRC list to be activated contains three transfer resources, a bitmap 110 containing three bits can be used in MAC CE signaling, where the least significant bit in the bitmap corresponds to the first transfer resource in the RRC list to be activated, the second bit represents the second transfer resource in the RRC list to be activated, and the most significant bit in the bitmap represents the last transfer resource in the RRC list to be activated. Thus, if a bit value of 1 indicates that the corresponding transfer resource needs to have its resource information updated, this may mean that the second and last transfer resources need to have their resource information updated, and then the two fields are shown in MAC CE signaling to indicate the updated resource information for the second and last transfer resources, respectively. In another embodiment, if the most significant bit in the bitmap represents the first transfer resource in the RRC list to be activated, the second bit represents the second transfer resource, and the least significant bit represents the last transfer resource.Thus, this may mean that the first and second transport resources in the activated RRC list may request an update of resource information, and two fields may also be indicated in the MAC CE signaling to update the resource information for the first and second transport resources, respectively. In some embodiments, a new field may be added in the MAC CE signaling to indicate whether there is updated resource information in the MAC CE signaling.

[0071] Case 4: Resource information can be implicitly presented.

[0072] 1. Panel information can be implicitly indicated using at least one of the following options: • Option 1: Implicitly indicated by the beam index for the access link. In some embodiments, beams on different panels may have different beam indices, and thus panel information can be implicitly indicated via the beam index. Option 2: If only one panel is operating, there is no need to display any panel information. • Option 3: Default panel information can be predefined for NCR. If there is no explicit indication regarding panel information, default panel information can be considered for the beam.

[0073] 2. Link level on / off information can be implicitly indicated using at least one of the following options: • Option 1: Implicitly indicated by beam index. One or more specific beam indices can be used to indicate the link level on / off state, and each specific beam index can be used to indicate the link level on / off state for at least one of the following links, namely, transfer link 1, transfer link 2, transfer link 3, or transfer link 4. The specific beam indices mentioned above may have the following alternatives: -Alternative 1.1: These specific beam indices can be used to indicate link level on / off states, and specific beam indices can also correspond to the physical beams of the access link. To determine whether the indicated specific beam indices have meaning for implicitly indicating link level on / off states, a higher-layer parameter can be configured to enable / disable implicit link level on / off indication by beam indices. In some embodiments, the higher-layer parameter may be a bit field, where bit value 0 may indicate that a specific beam indice can be used to implicitly indicate a link level on / off state, and bit value 1 may indicate the disabling of the link level on / off state implicitly indicated by the specific beam indice. In some embodiments, if this higher-layer parameter is configured, this may mean that a specific beam indice can also be used to implicitly indicate a link level on / off state, and if this higher-layer parameter is not configured, this may mean that the beam indices are used only to indicate beam information. The upper-layer parameters can be configured in at least one of the following: RRC signaling, MAC CE signaling, or DCI signaling. The following examples are given to provide a deeper understanding of Alternative 1.1. Example 1: A specific beam index 0 may indicate that access link 3 is "on" while the backhaul link is "off". In this manner, when the NCR receives beam indication 0 from the backhaul link, the NCR can turn on the access link, use access link beam 3, and terminate the transfer operation. Example 2: A specific beam index 0 may indicate that access link 3 is "on" while the backhaul link is "off". A higher layer parameter can be configured for the NCR to indicate that the link level on / off state is implicitly indicated by the beam index. In such a way, when the NCR receives beam indication 0 from the BS, the NCR may turn off the backhaul link, use beam 1, and terminate the transfer operation. In some embodiments, when the higher layer parameter is not configured or configured not to enable the link level on / off state, when the NCR receives beam indication 0 from the BS, the NCR may use beam 1 directly, terminate the transfer operation, and not turn off the backhaul link. -Alternative 1.2: These specific beam indices may be used to indicate link level on / off states, and specific beam indices may not correspond to the physical beams of the access link. In such a manner, if an NCR receives these specific beam indices, the NCR may understand / recognize that the indicated specific beam indices are not actual beam information, but may be used to implicitly indicate a link level on / off state. Example 1: When the NCR has 10 beams on the access link, and the BS can use 4 bits to indicate beam information on the access link. In such a way, beam index 11 can be used to indicate that the NCR-Fwd can turn off the access link and keep the backhaul link on. Option 2: In some embodiments, if the time-domain resources associated with the beam for the backhaul link are shown separately from the access links, the link-level on / off states for the backhaul link and the access link can be implicitly indicated separately by beam information for the access link and the backhaul link. With respect to the backhaul link, specific beam information (e.g., TCI state or beam index) can be used to implicitly indicate the link-level on / off state, including at least one of transport link 1 and transport link 2. With respect to the access link, specific beam index can be used to implicitly indicate the link-level on / off state, including at least one of transport link 3 and transport link 4. • Option 3: Implicitly indicated by a Time-Division Duplex (TDD) configuration. For example, if the TDD configuration for the corresponding indicated time resource is UL, this may mean that only transfer links 2 and 4 can be turned on, while transfer links 1 and 3 can be turned off. In some embodiments, a dedicated TDD configuration can be configured for NCR-Fwd. In such a way, if NCR-Fwd is used for UL transfer, the dedicated TDD configuration for NCR-Fwd may have UL symbols and flexible symbols, which implicitly means that only transfer links 2 and 4 can be turned on, while transfer links 1 and 3 can be turned off. Implementation Example 5: Beam Information Indication for Backhaul Links

[0074] In this disclosure, since the C-link and backhaul link operate within the same bandwidth, beam information indication for the backhaul link may share the same spatial filter as the C-link, and therefore beam information for the backhaul link may share the same RRC configuration as the beam for the C-link. However, in some cases, the spatial filter of the C-link cannot be shared with the backhaul link, which means that the RRC configuration of the beam for the C-link cannot be shared with the backhaul link. For example, when the C-link and backhaul link operate within different bandwidths (e.g., the C-link operates in FR1 while the backhaul link operates in FR2), or when the C-link and backhaul link operate on different panels, or when the NCR-MT and NCR-Fwd are in different locations, the RRC configuration list of the TCI state for the C-link cannot be shared with the backhaul link. In such a case, a new beam indication method for the backhaul link may be considered.

[0075] The format of beam information for the backhaul link may refer to the options for backhaul link beam information described in Implementation Example 3.

[0076] Example 1: Beam information for backhaul links and beam information for access links can be indicated in different signaling. In such a way, backhaul link beam information can be indicated via at least one of RRC signaling, MAC CE signaling, or DCI signaling, which may be a separate signaling from beam indication for access links. Combinations of different layer signaling may also be considered as a possibility to save on signaling costs. • Option 1: RRC only, MAC CE only, and / or DCI only. Semi-static or common backhaul link beam information can be configured or indicated via RRC signaling and / or MAC CE signaling, which cannot change frequently. The main benefit is saving on dynamic signaling costs. For example, if a common backhaul link beam is applied for all beam indications for the access link, this can be configured via RRC signaling and / or MAC CE signaling. • Option 2: RRC+MAC CE+DCI, RRC+DCI, MAC CE+DCI, and / or RRC+MAC CE. A set of candidate backhaul link beam information can be configured via RRC signaling. MAC CE and / or DCI can then be used to activate / deactivate a subset of backhaul link beams or one of them from the candidate resource set. In some embodiments, if more than one backhaul link beam information is activated, the number of backhaul link beams activated may be the same as the number of access link beams indicated. For example, a list of TCI states dedicated to backhaul link beam indication can be configured via RRC signaling, and the format of the TCI states for backhaul links may refer to Implementation Embodiment 3. One or more of the TCI states can be activated / deactivated from the list via MAC CE signaling. In another embodiment, a list of TCI states for backhaul link beam indication can be configured via RRC signaling. One or more of the TCI states can be selected from the list via DCI signaling. Option 3: In NCR backhaul link beam indication, MAC CE signaling can be used to activate / deactivate TCI states from the RRC configuration beamlist of the C-link. In such cases, a list of TCI states dedicated to backhaul link beam indication can be configured via the RRC signaling, and the MAC CE signaling can be reused with some interpretation if the format of the TCI states for the backhaul link can refer to Implementation Example 3. The TCI states activated or deactivated in this MAC CE signaling may be from a dedicated TCI state list configured for NCR-Fwd. In some embodiments, higher-layer parameters can be defined to distinguish whether the TCI states activated / deactivated in the MAC CE signaling are from the RRC configuration beams of the C-link or backhaul link. For example, a bit field can be defined in which bit value 1 may represent that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the backhaul link, and bit value 0 may represent that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the C link (and vice versa). In other embodiments, if this upper layer parameter is configured, it may mean that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the backhaul link. If it is not configured, it may mean that the TCI state activated / deactivated in MAC CE signaling originates from the RRC configuration beam of the C link.

[0077] Case 2: Beam information for backhaul links and beam information for access links can be indicated in the same signaling. In such cases, at least one of the following options can be considered. Option 1: With respect to periodic and semi-persistent access link beam indication, RRC signaling can be used to construct a list of transport resources, where each transport resource can be defined as {beam index for access link, time resource}. In such a way, since the backhaul link beam is always associated with the access link beam to terminate the DL / UL transport operation, a new field can be added to the transport resource in the RRC signaling, which may mean that each transport resource is defined as {beam index for access link, beam information for backhaul link, time resource}. Option 2: With respect to periodic and semi-persistent access link beam indication, RRC signaling can be used to construct a list of forwarding resources, each forwarding resource can be defined as {beam index for access link, time resource}. In such a way, since the communication conditions between BS and NCR do not change frequently, a common backhaul link beam can be considered with respect to the indicated access link beams of all forwarding resources in the list. In such cases, with respect to the RRC signaling for periodic beam indication and the RRC signaling for semi-persistent beam indication, a new field for backhaul link beam information can be constructed as part of the RRC signaling, and the same backhaul beam can be assumed with respect to all indicated access link beams in one list of forwarding resources. In this disclosure, with respect to semi-persistent access link beam indication, RRC signaling can be used to construct one or more lists of forwarding resources. Each list may contain one or more forwarding resources. MAC CE signaling can be used to activate / deactivate one of all constructed lists in the RRC signaling. All transport resources in this list can be selected. This MAC-CE signaling can also optionally provide updates regarding the beam index of the transport resource. In some embodiments, if a new field is added to the RRC signaling and is common to all transport resources in the list, MAC CE can also optionally provide updates regarding the beam information of the backhaul link in the transport resource to allow for flexibility. Option 3: In this disclosure, with respect to semi-persistent access link beam indication, RRC signaling may be used to constitute a list of one or more transport resources. Each list may contain one or more transport resources. MAC-CE signaling may be used to activate / deactivate one of all configured lists in the RRC. All transport resources in this list may be selected. The MAC-CE signaling may also optionally provide updates regarding the beam index in the transport resources. In such cases, a new field may be added in the MAC-CE signaling to indicate beam information for backhaul links, and the indicated backhaul link beam information may be common to all transport resources in the list being activated. • Option 4: In this disclosure, with respect to semi-persistent access link beam indication, RRC signaling may be used to constitute one or more lists of transport resources. Each list may contain one or more transport resources. MAC-CE signaling may be used to activate / deactivate one of all the configured lists in the RRC signaling. All transport resources in the list may be selected. The MAC-CE signaling may also optionally provide updates on beam indices in the transport resources. In such cases, one or more fields may be added in the MAC-CE signaling to indicate beam information for backhaul links, and the indicated backhaul link beam information may sequentially be a one-to-one mapping to the transport resources in the list being activated. The number of fields added in MAC-CE may be the same as the number of transport resources in the list being activated. Option 5: In this disclosure, with respect to aperiodic access link beam indication, a list of time resources may be predefined by RRC signaling. New DCI signaling may be used in conjunction with one or more fields for indicating beam information, each field referring to one beam index, and may also be used in conjunction with one or more fields for indicating time resources defined by RRC signaling. The one or more beam information fields and the one or more time resource fields may be sequentially associated with a one-to-one mapping. In such a manner, one or more fields may be added in the DCI signaling to indicate beam information for backhaul links, and the backhaul link beam information described herein may be sequentially associated with access link beam information in the DCI signaling. Option 6: In this disclosure, with respect to aperiodic access link beam indication, a list of time resources may be predefined by RRC signaling. New DCI signaling may be used in conjunction with one or more fields for indicating beam information, each field may refer to one beam index, and may also be used in conjunction with one or more fields for indicating time resources defined by RRC signaling. The one or more beam information fields and the one or more time resource fields may be sequentially associated with a one-to-one mapping. In such a manner, new fields may be added in the DCI signaling to indicate beam information for backhaul links, and the indicated backhaul link beam information may be common with respect to all indicated access link beams in the DCI signaling. Option 7: In this disclosure, with respect to aperiodic access link beam indication, a list of time resources may be predefined by RRC signaling. A new DCI signaling may be used in conjunction with one or more fields to indicate beam information. Each field refers to one beam index, and one or more fields may indicate time resources defined by RRC signaling. One or more beam information fields and one or more time resource fields are sequentially associated with a one-to-one mapping. In such a manner, a new field may be added in the corresponding RRC signaling to indicate backhaul link beam information, and the backhaul link beam information shown may be applicable to all indicated access link beam and time resource information in the DCI signaling.

[0078] Case 3: Beam information for backhaul links can be configured in a separate signaling from access link beam indication, and backhaul link beams can be updated within the access link beam indication signaling. As described in Case 1 of Implementation Example 5, beam information for backhaul links can be indicated to the NCR via a different signaling from access link beam indication, and all the options enumerated in Case 1 can be considered. In such cases, the following alternatives can be considered to enable flexibility and dynamism. Alternative 1: With respect to periodic access link beam indication and / or semi-persistent access link beam indication, a new field may be added to the forwarding resource in the RRC signaling, which may mean that each forwarding resource is defined as {beam index for access link, beam information for backhaul link, time resource}. This field may be optional. If the NCR wishes to update backhaul link beams for some forwarding resources, this field may be configured in the forwarding resource. If not configured, the backhaul beam associated with the indicated access link beam may refer to beam information for the backhaul link indicated in a separate signaling, as described in Example 1 of Implementation Example 5. Alternative 2: Regarding semi-persistent access link beam indication, MAC CE signaling can optionally update backhaul link beam information for several transport resources in the activated list.

[0079] Example 4: To terminate a UL transfer operation, the UL receive beam used for the access link and the UL transmit beam used for the backhaul link can be grasped for the NCR. With respect to DL transfer operations, the DL receive beam for the backhaul link and the DL transmit beam for the access link can be grasped for the NCR. In such a way, the beam used for the access link and the beam used for the backhaul link can be configured together as a beam pair for the NCR with respect to the transfer operation.

[0080] Given that multiple beams exist for access links and backhaul links, one or more beam pair lists can be configured for the NCR, each containing one or more beam pair lists, where each beam pair contains a beam index for the access link and beam information for the backhaul link (e.g., beam index or TCI status). In some embodiments, each beam pair list may have a list index. In some embodiments, each beam pair in a beam pair list may have a beam pair index. The beam pair lists can be shown from the BS to the NCR via at least one of RRC signaling, MAC CE signaling, or DCI signaling, or configured between the NCR and the BS via the OAM.

[0081] In other embodiments, since self-interference may occur with respect to NCR-Fwd, the configured beampair list may be configured for NCR to indicate that these beampairs are used for self-interference measurements. In other embodiments, the beampair list may be configured for NCR to indicate that these beampairs are not capable of causing self-interference problems.

[0082] The following aspects can be considered with respect to beam information indication for backhaul links and access links when one or more beam pair lists are configured in the NCR.

[0083] Side 1: Format of the beam pair list to be constructed. For each beam pair list, this may contain one or more beam pairs. For each beam pair, this may include a beam index used to represent the access link beam and beam information that may be used to indicate the backhaul link beam. Option 1: The access link beams in different beam pairs may be identical or different, and the backhaul beam information in different beam pairs may also be identical or different. This means there are no limitations on the beam pair list that can be constructed. The following examples are given to provide a clear illustration of the format of the beam pair list. -Example 1: Assume there are eight beams indexed 0-7 for access links and four beams indexed 0-3 for backhaul links. A beam pair list can be configured for NCR (e.g., Table 1). As shown in Table 1, for beam pair indices 0 and 1, they both include access link beam 1 but different backhaul link beams (e.g., backhaul link beam 1 and backhaul link beam 2). On the other hand, for beam pair indices 0 and 2, they both include backhaul beam 1 but different access link beams (e.g., access link beam 1 and access link beam 3). [Table 1] -Example 2: Assume there are eight beams indexed from 0 to 7 for the access links and four beams indexed from 0 to 3 for the backhaul links. A beam pair list can be configured for the NCR (e.g., Table 2). As shown in Table 2, different beam pairs have different access link beams and different backhaul link beams. [Table 2] Option 2: For each beam pair, this may include different access link beams, while the backhaul link beams in each beam pair may be identical or different, meaning that each access link beam in the NCR may be linked to one backhaul beam in the beam pair list that makes up the pair. -Example 1: Assume there are five beams indexed 0-4 for access links and four beams indexed 0-3 for backhaul links. A beam pair list can be configured for NCR (e.g., Table 3). As shown in Table 3, different access link beams may be included in different beam pairs in the list, while the backhaul link beams in each beam pair may be identical or different. [Table 3]

[0084] Side 2: Methods for backhaul link beam indication. When the beam pair list is configured for the NCR as described in Side 1 of Implementation Example 5, the following options can be considered with respect to beam indication of the access link and backhaul link of the NCR. Option 1: Since a beam pair includes beam information for the backhaul link and beam information for the access link, a beam pair index can be used for beam information indication. In such a way, the access link beam information field can be reinterpreted as a beam pair index. Specifically, with respect to periodic and semi-persistent beam indication for access links, the beam information field in the current RRC signaling transfer resource can be reinterpreted as a beam pair index. With respect to aperiodic beam indication for access links, the beam information field in the corresponding DCI signaling can be reinterpreted as a beam pair index. In some embodiments, higher-level parameters can be configured from BS to NCR to determine the meaning of the beam information field in the access link beam signaling, in order to inform NCR whether the corresponding beam information field represents an access link beam index or a beam pair index. For example, a bit field can be defined in which a bit value of 1 may represent that the current beam information field in access link beam signaling relates to an access link beam index, and a bit value of 0 may represent that the current beam information field in access link beam signaling relates to a beam pair index (and vice versa). In other embodiments, if this upper layer parameter is configured, it may mean that the current beam information field in access link beam signaling relates to a beam pair index. If it is not configured, it may mean that the current beam information field in access link beam signaling still relates to an access link beam index. In this disclosure, with respect to semi-persistent access link beam indication, RRC signaling can be used to configure one or more lists of transport resources. Each list may contain one or more transport resources.MAC-CE signaling can be used to activate / deactivate one of all configured lists in RRC signaling. All transport resources in this list can be selected. The MAC-CE signaling can also optionally provide updates regarding the access link beam index for the transport resources. In some embodiments, if the current beam information field for the transport resources in the RRC signaling is used for the beam-pair index, MAC-CE can also optionally provide updates regarding the backhaul link beam information for several transport resources in the RRC list to be activated, to allow for flexibility. Option 2: The beam information field for access links in periodic access link beam indication, semi-persistent access link beam indication, and aperiodic access link beam indication signaling can be reused. Once the NCR receives the access link beam indication, the NCR can check the beam pair list based on the indicated access link beam index and obtain the corresponding backhaul link beam information. The following two alternatives can be considered: -Alternative 2.1: The beam pair list can be configured for the NCR, and for each beam pair, this includes different access link beams, while the backhaul link beams in each beam pair may be identical or different, which may mean that each access link beam in the NCR can only be linked to one backhaul beam in the configured beam pair list. The following is an example of a configured beam pair list. Example 1: Assume that the access link contains five beams indexed from 0 to 4, and the backhaul link contains four beams indexed from 0 to 3. In this case, when the NCR receives access link beam indications, it can query the beam-pair list and obtain one corresponding backhaul link beam that can be used in association with each indicated access link beam index. For example, according to Table 4, when the NCR receives two access link beam indices 0 and 1, it can obtain that backhaul beam 0 can be used in association with access link beam 0, and backhaul beam 2 can be used in association with access link beam 1. With respect to semi-persistent access link beam indications, RRC signaling can be used to construct a list of one or more transport resources. Each list can contain one or more transport resources. MAC CE signaling can be used to activate / deactivate one of the constructed lists in the RRC signaling. All transport resources in this list can be selected. The MAC-CE signaling can also optionally provide updates regarding the access beam index in the transport resource. In some embodiments, if the current beam information field in the transport resource of the RRC signaling is still used for the access link beam, the backhaul link can be retrieved from the beam pair list according to the indicated access link beam. The MAC-CE signaling can also optionally provide updates regarding the beam information of the backhaul link for several transport resources to allow for flexibility. [Table 4] -Alternative 2.2: The beampair list is configured in NCR, and the access link beams in different beampairs may be identical or different. The backhaul beam information in different beampairs may also be identical or different. The following is an example of a configured beampair list. Example 1: Assume that the access link has five beams indexed from 0 to 4, and the backhaul link has four beams indexed from 0 to 3. [Table 5]

[0085] In this case, when the NCR receives an access link beam indication, it can query the beam pair list and retrieve one or more backhaul link beams that will be used in association with each indicated access link beam index. If only one backhaul beam is associated with an access link beam index, the NCR can use the access link beam and the corresponding backhaul link beam to complete the transfer operation. If more than one backhaul link beam is associated with an indicated access link beam index, the NCR can determine its action depending on whether this supports simultaneous transmission on these backhaul link beams. If simultaneous transmission is supported, the NCR can use all of these backhaul link beams to simultaneously complete the transfer operation on the indicated time and / or frequency domain resources associated with the indicated access link beam. If it is not supported, the NCR can determine which backhaul link beam is associated with the access link beam based on predefined rules (for example, selecting the backhaul link beam corresponding to the first defined access link beam index in the beam pair list). For example, according to Table 5, when the NCR receives access beam index 4, it can query the beam pair list and obtain two backhaul link beams with indices 1 and 2. In this case, if the NCR supports simultaneous transmission on backhaul link beams 1 and 2, it can use these two backhaul beams simultaneously, along with access link beam 4, to complete the transmission operation. If the NCR does not support simultaneous transmission on backhaul link beams 1 and 2, it can select backhaul link beam 1 based on predefined rules, for example, the first defined access link beam 4 is beam pair 4, and the backhaul link beam in beam pair 4 is backhaul link beam 1.

[0086] With respect to semi-persistent access link beam indication, RRC signaling can be used to construct a list of one or more transport resources, each list consisting of one or more transport resources. MAC-CE signaling can also be used to activate / deactivate one of the configured lists in the RRC, so that all transport resources in this list can be selected. This MAC-CE signaling can also optionally provide updates regarding the access beam index in the transport resources. Thus, in some embodiments, if the current beam information field in the transport resources of the RRC signaling is still used for the access link beam, the backhaul link can be retrieved from the beam-pair list according to the indicated access link beam. MAC-CE can then also optionally provide updates regarding the beam information of the backhaul link for several transport resources to allow for flexibility. • Option 3: As introduced in Example 1 of Implementation Example 5, a new dedicated signaling can be defined to indicate beam information for backhaul links, and all options enumerated in Example 1 of Implementation Example 5 can be considered with respect to the new signaling. In some embodiments, if there is no dedicated signaling for indicating backhaul link beams, or no valid indicated backhaul link beam information, or no backhaul link beams to be activated, the NCR can query a beam pair list configured according to indicated access link beam indexes and retrieve the corresponding backhaul link beams. The beam pair list can be configured for the NCR, and access link beams in different beam pairs may be identical or different. Backhaul beam information in different beam pairs may also be identical or different. In such a way, when the NCR receives access link beam indications, it can query the beam pair list and retrieve one or more backhaul link beams that can be used in association with each indicated access link beam index. If only one backhaul beam is associated with an access link beam index, the NCR can use the access link beam and the corresponding backhaul link beam to terminate the transport operation. If more than one backhaul link beam is associated with an indicated access link beam index, the NCR can determine its action depending on whether this supports simultaneous transmission on these backhaul link beams. If simultaneous transmission is supported, the NCR can use all of these backhaul link beams to simultaneously terminate the transport operation on the indicated time and / or frequency domain resources associated with the indicated access link beam.If not supported, the NCR can determine which backhaul link beam is associated with an access link beam based on predefined rules (for example, by selecting the backhaul link beam corresponding to the first defined access link beam index in the beam pair list). • Option 4: As introduced in Example 2 of Implementation Example 5, a new field may be added to the current access link beam indication signaling to indicate beam information for backhaul links, and all options enumerated in Example 2 of Implementation Example 5 may be considered with respect to the new field. In some embodiments, this newly added field is optional, and if no explicitly indicated backhaul link beam exists for an indicated access link beam, the NCR can query a beam pair list configured according to the indicated access link beam index and retrieve the corresponding backhaul link beam. The beam pair list may be configured for the NCR, and access link beams in different beam pairs may be identical or different. Backhaul beam information in different beam pairs may also be identical or different. In such a way, when the NCR receives an access link beam indication, it can query the beam pair list and retrieve one or more backhaul link beams that can be used in association with each indicated access link beam index. If only one backhaul beam is associated with an access link beam index, the NCR can use the access link beam and the corresponding backhaul link beam to terminate the transport operation. If more than one backhaul link beam is associated with an indicated access link beam index, the NCR can determine its action depending on whether this supports simultaneous transmission on these backhaul link beams. If simultaneous transmission is supported, the NCR can use all of these backhaul link beams to simultaneously terminate the transport operation on the indicated time and / or frequency domain resources associated with the indicated access link beam.If not supported, the NCR can determine which backhaul link beam is associated with an access link beam based on predefined rules (for example, by selecting the backhaul link beam corresponding to the first or last defined access link beam index in the beam pair list).

[0087] As mentioned in the above options in Examples 1, 2, 3, and 4 of Implementation Example 5, MAC CE signaling can be used to update backhaul link beam information for several transport resources in the RRC list to be activated. In this manner, the following options can be considered regarding the format of the MAC CE signaling for updating the backhaul link beam information. Option 1: One or more fields may be added to the MAC CE signaling to indicate the transport resource index, and one or more fields may be added to the MAC CE signaling to indicate updated backhaul link beam information. The one or more fields for the transport resource index and the one or more fields for the updated backhaul link beam information are sequentially associated with a 1-to-N (N≧1) mapping or an N-to-1 (N≧1) mapping. For example, five transport resources exist in the RRC list to be activated, and backhaul link beam information applicable for all transport resources is configured in the NCR. Also, BS wishes to update the backhaul link beam information for transport resource 1 and transport resource 2. In this case, there are two fields added in the MAC CE signaling to indicate transport resource index 1 and transport resource index 2, and two fields added in the MAC CE signaling to update the backhaul link beams for these two transport resources, respectively. This means that there is a one-to-one mapping between the fields for the transport resource indices and the fields for the updated backhaul link beams. In another embodiment, if the updated backhaul link beams are identical with respect to these two transport resources, two fields are added in the MAC CE signaling to indicate transport resource index 1 and transport resource index 2, and one field is added in the MAC CE signaling to update the backhaul link beams applicable for these two transport resources. This means that there is an N-to-1 (N>1) mapping between the fields for the transport resources and the fields for the updated backhaul link beams.In some embodiments, a new field is added to the MAC CE signaling to indicate whether updated backhaul link beam information exists in the MAC CE signaling. Option 2: A bitmap may be shown in MAC CE signaling to indicate one or more transport resources required to update backhaul link beam information, where each bit in the bitmap corresponds to a transport resource, and the bit value indicates whether the corresponding transport resource needs to update the backhaul link beam information. Additionally, if there is one or more transport resources that need to update the backhaul link beam information, one or more fields may be added in MAC CE signaling to indicate the updated backhaul link beam information for each corresponding transport resource. For example, a bit value of 1 indicates that the corresponding transport resource needs to update the backhaul link beam information, while a bit value of 0 indicates that the corresponding transport resource does not need to update the backhaul link beam information, and vice versa. For example, if the RRC list to be activated contains three transfer resources, a bitmap 110 containing three bits can be used in MAC CE signaling, where the least significant bit in the bitmap corresponds to the first transfer resource in the RRC list to be activated, the second bit represents the second transfer resource in the RRC list to be activated, and the most significant bit in the bitmap represents the last transfer resource in the RRC list to be activated. Thus, if a bit value of 1 indicates that the corresponding transfer resource needs to update its backhaul link beam information, this may mean that the second and last transfer resources need to update their backhaul link beam information, and then the two fields are shown in MAC CE signaling to indicate the updated backhaul link beam information for the second and last transfer resources, respectively. In another embodiment, if the most significant bit in the bitmap represents the first transfer resource in the RRC list to be activated, the second bit represents the second transfer resource, and the least significant bit represents the last transfer resource.Thus, this may mean that the first and second transport resources in the activated RRC list are required to update the backhaul link beam information, and that the two fields may also be indicated in the MAC CE signaling to update the backhaul link beam information for the first and second transport resources, respectively. In some embodiments, a new field may be added in the MAC CE signaling to indicate whether there is updated backhaul link beam information in the MAC CE signaling.

[0088] It should be understood that one or more features from the above implementation examples may be combined in any manner (e.g., in any order and priority, in parallel or otherwise) without being exclusive to any particular implementation example.

[0089] Figure 6 illustrates a flowchart of Method 600 for resource information indication. Method 600 may be implemented using one or more of the components and devices detailed herein in conjunction with Figures 1-2. In overview, Method 600 may be implemented by network nodes in some embodiments. Additional, fewer, or different operations may be performed in Method 600 depending on the embodiment. At least one aspect of the operation concerns a system, method, apparatus, or computer-readable medium.

[0090] A network node may receive resource information from a radio communication node to be used for at least one of a first, second, third, or fourth forwarding link. The first forwarding link may be from the radio communication node to the network node. The second forwarding link may be from the network node to the radio communication node. The third forwarding link may be from the network node to the radio communication device. The fourth forwarding link may be from the radio communication device to the network node. The resource information may include at least one of beam information for access links or additional information. The additional information may include at least one of frequency information for access links, panel information for access links, link level on / off information, beam information for backhaul links, frequency information for backhaul links, panel information for backhaul links, or uplink (UL) / downlink (DL) information. The backhaul link may include the first forwarding link and the second forwarding link. The access link may include the third forwarding link and the fourth forwarding link.

[0091] In some embodiments, prior to the network node receiving resource information, the radio communication node may receive capability information of the network node. Capability information can be transmitted to the radio communication node from an operations, administration, and maintenance (OAM) entity. Capability information can be reported from the network node to the radio communication node. Capability information may include at least one of the following: frequency information allocation for access links and / or backhaul links, simultaneous beam operation capability for access links and / or backhaul links, frequency shift capability, or subband non-overlapping full duplex (SBFD) capability.

[0092] In some embodiments, frequency information includes at least one of the following formats: carrier index, passband index, bandwidth portion (BWP) index, subband index, cell identifier (ID), start physical resource block (PRB), start resource element (RE), end PRB, end RE, number of consecutive PRBs, number of REs, RB offset, RE offset, absolute radio frequency channel number (ARFCN), or global synchronous raster channel number (GCSN). Panel information includes at least one of the following formats: panel identifier or index or antenna group ID or index. Link level on / off information can be used to indicate an on / off status applicable to at least one of the first, second, third, or fourth forwarding links. Beam information for backhaul links can be in one of the following formats: beam index or transmission configuration indication (TCI) state.

[0093] In some embodiments, when beam information for a backhaul link is in the format of TCI states, a list containing one or more TCI states can be configured for a network node to be used for backhaul link beam information indication. The list can be configured for the network node by a radio communication node via at least one of the following: radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. A set of logical reference signals used in the TCI states can be defined for the network node. The set of logical reference signals may be a one-to-one mapping to the physical backhaul link beam. A new type of TCI state may include a logical beam index defined for the network node, the logical beam index may be a one-to-one mapping to the physical backhaul link beam. At least one of the additional information may be indicated in the same radio resource control (RRC) signaling used for periodic beam information indication of the access link. The format for indicating each type of additional information is one in which the additional information is shown in pairs with beam indices for access links configured in the list by RRC signaling, with each access link beam having its associated corresponding additional information, and one field added to indicate the additional information, applicable to all access link beams configured in the list by RRC signaling.

[0094] In some embodiments, at least one of the additional information may be indicated in the same RRC signaling used for semi-persistent beam information indication of the access link. The format of the indication for each type of additional information may be that the additional information is indicated in pairs with beam indices for access links configured in a list by the radio resource control (RRC) signaling, or that one field is added to indicate the additional information and is applicable for all beam indices for access links configured in a list by the RRC signaling. At least one of the additional information may be indicated in the same medium access control element (MAC CE) signaling used for semi-persistent beam indication of the access link. The format of the indication for each type of additional information may be one or more fields added in the MAC CE signaling to indicate one or more additional information, where one or more additional information is a one-to-one mapping to the indicated beam index information for the access link activated in the MAC CE signaling, or one field added to indicate additional information and applicable for all beam index information for the access link activated in the MAC CE signaling.

[0095] In some embodiments, at least one of the additional information may be indicated in the same radio resource control (RRC) signaling and medium access control element (MAC CE) signaling used for semi-persistent beam indication of access links. The format of the indication for each type of additional information may include one field added in the RRC signaling to indicate the additional information and applicable for all beam indices for access links configured in the list by the RRC signaling, and one or more fields added in the MAC CE signaling to update one or more additional information used for specific indicated access link beam information. At least one of the additional information may be indicated in the same downlink control information (DCI) signaling used for aperiodic beam indication of access links. The format of the indication for each type of additional information may be one or more fields added in the DCI signaling to indicate one or more additional information and a one-to-one mapping to the indicated beam index information of the access link, or one field added in the DCI signaling to indicate additional information and applicable to all indicated beam index information of the access link.

[0096] In some embodiments, at least one of the additional information can be indicated in a new signaling. The new signaling may comprise at least one of the following: a radio resource control (RRC) signaling, a media access control element (MAC CE) signaling, or a downlink control information (DCI) signaling. Panel information for an access link can be implicitly indicated by a specific beam index for the access link. Link level on / off information can be implicitly indicated by a specific beam index for the access link. Link level on / off information can be implicitly indicated by a time-division duplex (TDD) configuration.

[0097] In some embodiments, when backhaul link beam information is in the format of transmission configuration indication (TCI) states, a medium access control element (MAC CE) signaling used to activate or deactivate one TCI state for the backhaul link from the radio resource control (RRC) configuration TCI state list of the control link is reused to indicate one or more TCI states to be activated or deactivated from the RRC configuration TCI state list for the backhaul link, and the control link includes a first control link from a radio communication node to a network node and a second control link from a network node to a radio communication node. Upper-layer parameters may be defined for the network node to distinguish whether the TCI state indicated in the MAC CE signaling is from the RRC configuration TCI state list of the backhaul link or from the RRC configuration beam of the control link. Backhaul link beam information may be indicated in a new signaling comprising at least one of radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. When a radio communication node updates backhaul link beam information for one or more indicated access link beams, RRC signaling used for periodic and / or semi-permanent access link beam indication may be used to update backhaul link beam information for one or more indicated access link beam indices. A field for backhaul link beam indication may be indicated in a pair with a field for beam indices for access links configured in a list by the RRC signaling. When a field for backhaul link beam indication is not indicated in the RRC signaling for periodic access link beam indication, the backhaul link beam information associated with the corresponding access link beam may refer to the backhaul link beam information indicated in the new signaling.When a wireless communication node updates backhaul link beam information for an access link beam indicated as one or more semi-persistent access link beam indicators, the MAC CE signaling used for the semi-persistent access link beam indicators may be used to update the backhaul link beam information for one or more indicated access link beam indices. One or more fields for backhaul link beam indicators may be added in the MAC CE signaling to update the corresponding backhaul link beam information for one or more indicated access link beams that are activated in the MAC CE signaling. When backhaul link beam indicators for access link beams are not updated in the MAC CE signaling for semi-persistent access link beam indicators, the backhaul link beam information associated with the corresponding access link beam may refer to the backhaul link beam information indicated in the new signaling.

[0098] In some embodiments, a network node may receive a list from a radio communication node containing one or more beam pairs, each beam pair containing a first beam index configured for an access link and a second beam information configured for a backhaul link. Each beam pair in the list may have a corresponding beam pair index. The list can be configured from the radio communication node to the network node via at least one of the following: radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling. The list can be configured to the network node via an operations, administration, and maintenance (OAM) entity. Access link beam information in different beam pairs in the list may be identical or different. Backhaul link beam information in different beam pairs in the list may be identical or different. In some embodiments, access link beam information in different beam pairs in the list may be different, and backhaul link beam information in different beam pairs in the list may be identical or different.

[0099] In some embodiments, the access link beam information field can be reinterpreted to indicate a beam pair index. A higher-layer parameter can be configured for a network node to indicate whether the access link beam information field is used to indicate a beam pair index or an access link beam index. Backhaul link beam information can be obtained directly from the beam pair list according to the indicated access link beam index. When one or more backhaul link beams are acquired for an associated indicated access link beam, and the network node supports simultaneous beam transmission over the backhaul link beam, the network node may use the backhaul link beam simultaneously with the associated access link beam. When one or more backhaul link beams are acquired for an associated indicated access link beam, and the network node does not support simultaneous beam transmission over the backhaul link beam, a predefined rule can be defined for the network node to determine the backhaul link beam information for the associated access link beam. The predefined rules may include at least one of the following: the backhaul link beam corresponding to the associated access link beam defined first in the beam-pair list, or the backhaul link beam corresponding to the associated access link beam defined last in the beam-pair list, or the default backhaul link beam. One or more fields may be added to the medium access control element (MAC CE) signaling of semi-persistent access link beam information to update the backhaul link beam information with respect to the indicated access link beam information activated in the MAC CE signaling.

[0100] While various embodiments of the Solution are described above, it should be understood that they are presented only as examples and not as limitations. Similarly, various schematic diagrams may depict exemplary architectures or configurations, which are provided to enable those skilled in the art to understand the exemplary features and functions of the Solution. However, such those skilled in the art will understand that the Solution is not limited to the illustrated exemplary architectures or configurations and can be implemented using various alternative architectures and configurations. In addition, as will be understood by those skilled in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Therefore, the scope and scope of this disclosure should not be limited by any of the exemplary embodiments described above.

[0101] Furthermore, it should be understood that any reference to elements in this specification using designations such as “first,” “second,” etc., does not generally limit the quantity or order of those elements. Rather, these designations can be used in this specification as a convenient means of distinguishing two or more elements or instances of elements. Therefore, the references to first and second elements do not mean that only two elements may be employed, or that the first element must precede the second element in any given form.

[0102] In addition, those skilled in the art will understand that information and signals can be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, and symbols, which may be referenced in the above description, can be represented by voltage, electric current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0103] Those skilled in the art will further understand that any of the various illustrative logic blocks, modules, processors, means, circuits, methods, and functions described in relation to the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination thereof), firmware, various forms of programs or design code incorporating instructions (which may be referred to herein for convenience as “software” or “software modules”), or any combination of these techniques. To clearly illustrate the interchangeability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are described above in general terms of their functionality. Whether such functionality is implemented as hardware, firmware, software, or a combination of these techniques depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art will understand that the described functionality may be implemented in various ways for each specific application, but such implementation decisions will not result in a departure from the scope of this disclosure.

[0104] Furthermore, those skilled in the art will understand that the various illustrative logic blocks, modules, devices, components, and circuits described herein may be implemented in or carried out within an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logic blocks, modules, and circuits may further include antennas and / or transceivers that can communicate with various components in a network or within a device. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other suitable combination of configurations for carrying out the functions described herein.

[0105] When implemented in software, the functionality can be stored on a computer-readable medium as one or more instructions or code. Therefore, steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium. The computer-readable medium includes both computer storage media and communication media, including any medium that can enable the transfer of computer programs or code from one location to another. The storage medium can be any available medium that can be accessed by a computer. Without limitation, as embodiments, such a computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0106] In this document, the term “module” as used herein refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. In addition, for the purposes of discussion, various modules are described as discrete modules; however, as will be obvious to those skilled in the art, two or more modules may be combined to form a single module that performs the associated functions according to embodiments of this solution.

[0107] In addition, memory or other storage devices and communication components may be employed in embodiments of this solution. For the purpose of clarification, it should be understood that the above description describes embodiments of this solution with reference to different functional units and processors. However, it will be apparent that any preferred distribution of functionality between different functional units, processing logic elements, or domains may be used without deviating from this solution. For example, functionality illustrated as being performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Thus, references to specific functional units are not to indicate a strict logical or physical structure or organization, but merely to preferred means for providing the functionality described.

[0108] Various modifications of the embodiments described herein will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but rather to be given the broadest scope consistent with the novel features and principles disclosed herein, as enumerated in the following claims.

Claims

1. A wireless communication method, Network nodes receive resource information from wireless communication nodes. The resource information includes beam information for the access link, frequency information for the access link and the backhaul link, panel information for the access link and the backhaul link, and additional information for the access link or the backhaul link, and the resource information is used for at least one of the first, second, third, or fourth transport links, and the frequency information for the access link and the backhaul link, the panel information for the access link and the backhaul link, and at least one of the additional information are shown in the same radio resource control (RRC) signaling used for at least one of periodic beam information indication or semi-persistent beam information indication of the access link. A wireless communication method comprising: a first transfer link from the wireless communication node to the network node; a second transfer link from the network node to the wireless communication node; a third transfer link from the network node to a wireless communication device; a fourth transfer link from the wireless communication device to the network node; the first and second transfer links constituting the backhaul link; and the third and fourth transfer links constituting the access link.

2. The aforementioned additional information is, Link level on / off information, Beam information for backhaul link, or Uplink (UL) / Downlink (DL) information, The wireless communication method according to claim 1, comprising at least one of the following.

3. The wireless communication method according to claim 1, wherein the wireless communication node receives capability information of the network node prior to the network node receiving the resource information.

4. The wireless communication method according to claim 3, wherein the capability information is transmitted from an operations, management, and maintenance (OAM) entity to the wireless communication node.

5. The wireless communication method according to claim 3, wherein the capability information is reported from the network node to the wireless communication node.

6. The aforementioned capability information is, Frequency information allocation for access links and / or backhaul links, Simultaneous beam operation capability relating to the access link and / or the backhaul link, Frequency shift capability, or Subband non-overlapping full duplex (SBFD) capability The wireless communication method according to claim 3, comprising at least one of the following.

7. The wireless communication method according to claim 2, wherein the frequency information includes at least one of the following formats: carrier index, passband index, bandwidth portion (BWP) index, subband index, cell identifier (ID), start physical resource block (PRB), start resource element (RE), end PRB, end RE, number of consecutive PRBs, number of REs, RB offset, RE offset, absolute radio frequency channel number (ARFCN), or global synchronous raster channel number (GCSN).

8. The wireless communication method according to claim 2, wherein the panel information includes at least one of the following formats: a panel identifier or index, or an antenna group ID or index.

9. The wireless communication method according to claim 2, wherein the link level on / off information is used to indicate an on / off status applicable to at least one of the first, second, third, or fourth transfer links.

10. The wireless communication method according to claim 2, wherein the additional information includes the beam information for the backhaul link, and the beam information for the backhaul link is in one of the following formats: beam index or transmission configuration indication (TCI) state.

11. The wireless communication method according to claim 10, wherein, when the beam information for the backhaul link is in the format of the TCI states, a list comprising one or more TCI states is configured for the network node to be used for backhaul link beam information indication.

12. The wireless communication method according to claim 11, wherein the list is configured by the wireless communication node to the network node via at least one of wireless resource control (RRC) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling.

13. The wireless communication method according to claim 11, wherein a set of logical reference signals used in the TCI state is defined for the network node, and the set of logical reference signals is a one-to-one mapping to a physical backhaul link beam.

14. The wireless communication method according to claim 11, wherein a new type of TCI state includes a logical beam index defined for the network node, the logical beam index being a one-to-one mapping to a physical backhaul link beam.

15. The format of the indication for each type of additional information is: The aforementioned additional information is shown in pairs with beam indices for the access links, which are configured in a list by RRC signaling, and each access link beam has associated corresponding additional information, or One field is added to indicate the aforementioned additional information and is applicable to all access link beams configured in the list by RRC signaling. The wireless communication method according to claim 1, which is one of the following.

16. Network node, At least one processor, Receiving resource information from a wireless communication node via a receiver. The system is configured to perform the following, and the resource information includes beam information for the access link, frequency information for the access link and the backhaul link, panel information for the access link and the backhaul link, and additional information for the access link or the backhaul link, and the resource information is used for at least one of the first, second, third, or fourth transport links, and the frequency information for the access link and the backhaul link, the panel information for the access link and the backhaul link, and at least one of the additional information are shown in the same radio resource control (RRC) signaling used for at least one of the periodic beam information indication or semi-persistent beam information indication of the access link. The first transfer link is from the wireless communication node to the network node, the second transfer link is from the network node to the wireless communication node, the third transfer link is from the network node to the wireless communication device, and the fourth transfer link is from the wireless communication device to the network node. The first and second transfer links constitute the backhaul link, and the third and fourth transfer links constitute the access link. A network node equipped with these features.

17. A wireless communication method, The wireless communication node transmits resource information to the network node. The resource information includes beam information for the access link, frequency information for the access link and the backhaul link, panel information for the access link and the backhaul link, and additional information for the access link or the backhaul link, and the resource information is used for at least one of the first, second, third, or fourth transport links, and the frequency information for the access link and the backhaul link, the panel information for the access link and the backhaul link, and at least one of the additional information are shown in the same radio resource control (RRC) signaling used for at least one of periodic beam information indication or semi-persistent beam information indication of the access link. A wireless communication method comprising: a first transfer link from the wireless communication node to the network node; a second transfer link from the network node to the wireless communication node; a third transfer link from the network node to a wireless communication device; a fourth transfer link from the wireless communication device to the network node; the first and second transfer links constituting the backhaul link; and the third and fourth transfer links constituting the access link.

18. A wireless communication node, At least one processor, Sending resource information to network nodes via a transmitter. The system is configured to perform the following, and the resource information includes beam information for the access link, frequency information for the access link and the backhaul link, panel information for the access link and the backhaul link, and additional information for the access link or the backhaul link, and the resource information is used for at least one of the first, second, third, or fourth transport links, and the frequency information for the access link and the backhaul link, the panel information for the access link and the backhaul link, and at least one of the additional information are shown in the same radio resource control (RRC) signaling used for at least one of the periodic beam information indication or semi-persistent beam information indication of the access link. The first transfer link is from the wireless communication node to the network node, the second transfer link is from the network node to the wireless communication node, the third transfer link is from the network node to the wireless communication device, and the fourth transfer link is from the wireless communication device to the network node. The first and second transfer links constitute the backhaul link, and the third and fourth transfer links constitute the access link. A wireless communication node equipped with this feature.

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