Systems and methods for resource direction - Patents.com

Abstract

Presented are systems and methods for resource indication. A network node may receive at least one of (i) beam information and (ii) time domain information from a wireless communication node. The time domain information may indicate a time interval during which the beam information may be applied by the network node. In some embodiments, the network node uses or operates one of the following according to the beam information and the time domain information: a first control link from the wireless communication node to the network node, a second control link from the network node to the wireless communication node, a first forwarding link from the wireless communication node to the network node, a second forwarding link from the network node to the wireless communication node, a third forwarding link from the network node to the wireless communication device, or a fourth forwarding link from the wireless communication device to the network node.

Description

[Technical Field]

[0001] TECHNICAL FIELD The present disclosure relates generally to wireless communications, including, but not limited to, systems and methods for resource indication. [Background technology]

[0002] The 3rd Generation Partnership Project (3GPP®), a standards organization, is currently specifying a new air interface called 5G New Radio (5G NR) and the Next Generation Packet Core Network (NG-CN or NGC). 5G NR has three main components: the 5G Access Network (5G-AN), the 5G Core Network (5GC), and the User Equipment (UE). To facilitate the enablement of various data services and requirements, the elements of the 5GC, also called network functions, have been simplified and are partly software-based and partly hardware-based, so that they can be adapted as needed. Summary of the Invention [Means for solving the problem]

[0003] The exemplary embodiments disclosed herein are directed to solving one or more of the problems presented in the prior art and providing additional features that will become readily apparent from a review of the following detailed description in conjunction with the accompanying drawings. In accordance with various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, these embodiments are presented by way of example, and not limitation, and various modifications to the disclosed embodiments may be made while remaining within the scope of the present disclosure, as will be apparent to those skilled in the art upon reading this disclosure.

[0004] At least one aspect is directed to the following system, method, apparatus, or computer-readable medium: A network node (e.g., a network-controlled repeater (NCR), a reconfigurable intelligent surface (RIS)) may receive at least one of (i) beam information and / or (ii) time-domain information (e.g., time resource information for beam application) from a wireless communication node. The time-domain information may indicate a time interval during which the beam information may be applied by the network node. In some embodiments, the network node uses or operates one of the following according to the beam information and the time-domain information: a first control link from the wireless communication node to the network node, a second control link from the network node to the wireless communication node, a first forwarding link from the wireless communication node to the network node, a second forwarding link from the network node to the wireless communication node, a third forwarding link from the network node to a wireless communication device, or a fourth forwarding link from the wireless communication device to the network node.

[0005] In some embodiments, the beam information may include at least one of an index of the beam or an index of a source reference signal corresponding to the beam. The time-domain information may include at least one of an applicability time, a time offset, or a time-domain granularity defined by a plurality of parameters. The applicability time may be defined by at least one of a start time, a start time and duration, a start time and end time, a start and length indicator value (SLIV) representing the start time and duration, or a bitmap corresponding to a plurality of time intervals, wherein each bit value of the bitmap may indicate whether the beam information is applicable in a corresponding one of the plurality of time intervals.

[0006] In some embodiments, the duration may include at least one of a first value indicating a number of slots (e.g., Lslot) or a second value indicating a number of symbols (e.g., Lsymbol). The time offset may include at least one of a slot offset for indicating an offset of a number of slots from a defined slot or a symbol offset for indicating an offset of a number of symbols from a defined symbol. The time domain granularity may include at least one of a flag (e.g., a defined parameter or bit value) indicating whether symbol-level or slot-level granularity is used for at least one of the applicable time or time offsets, or a bitmap of bit values ​​for multiple slots, each bit value of the bitmap indicating whether symbol-level or slot-level granularity is used for at least one of the applicable time or time offsets in a corresponding one of the multiple slots.

[0007] In some embodiments, the beam information is applied when (at the time of or in response to) the network node receives the beam information. The beam information may be applied at a time offset after the time the network node receives the beam information. The beam information may be applied until another beam information is received by the network node.

[0008] In some embodiments, a network node may receive from a wireless communication node (e.g., BS) a configuration (e.g., RRC message) or indication (e.g., MAC CE, DCI message) of the absolute length of symbols or slots of at least one band of a plurality of transport links. The configuration or indication may include a scaling factor for the band, which may be related to the subcarrier spacing (SCS) of a control link (or a particular reference link) between the network node and the wireless communication node. The network may receive the time domain information via a radio resource control (RRC) message from the wireless communication node. The network may receive the time domain information via a medium access control (MAC CE) message from the wireless communication node. The network may receive the time domain information via downlink control information (DCI) from the wireless communication node.

[0009] In some embodiments, the time domain information may further include a periodicity of the duration (e.g., a periodicity of the effective duration). The network node may receive the plurality of time domain information via a radio resource control (RRC) message from the wireless communication node. The network node may receive one of the plurality of time domain information to apply via a media access control control element (MAC CE) message from the wireless communication node. The network node may receive a set of time domain information from the plurality of time domain information via a media access control control element (MAC CE) message from the wireless communication node. The network node may receive time domain information from the set to apply via a downlink control information (DCI) message from the wireless communication node.

[0010] In some embodiments, the network node may receive a plurality of time domain information via a Radio Resource Control (RRC) message from the wireless communication node. The network node may receive time domain information from a plurality of time domain information to apply via a Downlink Control Information (DCI) message from the wireless communication node. The time domain information may relate to beam information. The present invention provides, for example, the following. (Item 1) 1. A method, comprising: receiving, by a network node from a wireless communication node, at least one of (i) beam information and (ii) time domain information; the time domain information indicates a time interval during which the beam information is applied by the network node. A method comprising: (Item 2) The network node, according to the beam information and the time domain information, a first control link from the wireless communication node to the network node; a second control link from the network node to the wireless communication node; a first forwarding link from said wireless communication node to said network node; a second forwarding link from said network node to said wireless communication node; a third forwarding link from the network node to the wireless communication device; or a fourth forwarding link from the wireless communication device to the network node; Item 1, wherein the method employs or operates one of the following: (Item 3) The beam information is the index of the beam, or The index of the source reference signal corresponding to said beam Item 1. The method according to item 1, comprising at least one of the following: (Item 4) The time domain information is Applicability time defined by several parameters, a time offset, or time domain granularity Item 1. The method according to item 1, comprising at least one of the following: (Item 5) The applicable time is Start time, said start time and duration; said start and end times; a Start and Length Indicator Value (SLIV) representing said start time and said duration; or a bitmap corresponding to a plurality of time intervals, each bit value of the bitmap indicating whether the beam information is applied during a corresponding one of the plurality of time intervals; Item 5. The method according to item 4, wherein the method is defined by at least one of the following: (Item 6) The duration is The first value indicates the number of slots, or A second value indicating the number of symbols Item 6. The method according to item 5, comprising at least one of the following: (Item 7) The time offset is: A slot offset to indicate the offset in number of slots from the defined slot, or Symbol offset to indicate the offset in number of symbols from the defined symbol Item 5. The method according to item 4, comprising at least one of the following: (Item 8) The time domain granularity is: a flag indicating whether symbol-level or slot-level granularity is used for at least one of the applicability times or time offsets; or a bitmap of bit values ​​for a plurality of slots, each bit value of the bitmap indicating whether symbol-level or slot-level granularity is used for at least one of the applicability times or the time offsets in a corresponding one of the plurality of slots; Item 5. The method according to item 4, comprising at least one of the following: (Item 9) 2. The method of claim 1, wherein the beam information is applied when the network node receives the beam information. (Item 10) 5. The method of claim 4, wherein the beam information is applied at the time offset after the network node receives the beam information. (Item 11) Item 1. The method according to item 1, wherein the beam information is applied until another beam information is received by the network node. (Item 12) receiving by said network node from said wireless communication node a configuration or indication of an absolute symbol or slot length of a band of at least one of said plurality of transport links; Item 1. The method according to item 1, comprising: (Item 13) Item 13. The method of item 12, wherein the configuration or the instructions include a scaling factor for the band relative to a subcarrier spacing (SCS) of a control link between the network node and the wireless communication node. (Item 14) receiving, by the network node, the time domain information via a Radio Resource Control (RRC) message from the wireless communication node; or receiving, by the network node, the time domain information via a Media Access Control Control Element (MAC CE) message from the wireless communication node; or receiving, by the network node, the time domain information via downlink control information (DCI) from the wireless communication node; Item 1. The method according to item 1, comprising: (Item 15) 6. The method of claim 5, wherein the time domain information further includes a periodicity of the duration. (Item 16) receiving, by the network, a plurality of said time domain information via a radio resource control (RRC) message from said wireless communication node; Item 1. The method according to item 1, comprising: (Item 17) receiving, by the network node via a Media Access Control Control Element (MAC CE) message from the wireless communication node, one of the plurality of time domain information for applying; Item 17. The method according to item 16, comprising: (Item 18) receiving, by the network node, a set of time domain information from a plurality of time domain information via a Media Access Control Element (MAC CE) message from the wireless communication node; receiving, by the network node via a Downlink Control Information (DCI) message from the wireless communication node, the time domain information from the set for application; Item 17. The method according to item 16, comprising: (Item 19) receiving, by the network node, a plurality of time domain information via a Radio Resource Control (RRC) message from the wireless communication node; receiving, by the network node via a Downlink Control Information (DCI) message from the wireless communication node, the time domain information from the plurality of time domain information for application; Item 1. The method according to item 1, comprising: (Item 20) Item 10. The method of item 1, wherein the time domain information is related to the beam information. (Item 21) A non-transitory computer-readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform the method of any one of items 1 to 20. (Item 22) 1. An apparatus, comprising: At least one processor configured to perform the method according to any one of items 1 to 20. 1. An apparatus comprising: [Brief explanation of the drawings]

[0011] Various exemplary embodiments of the present 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 the present solution to facilitate the reader's understanding of the present solution. Therefore, the drawings should not be considered as limiting the breadth, scope, or applicability of the present solution. It should be noted that for clarity and ease of illustration, the drawings are not necessarily drawn to scale.

[0012] [Figure 1] FIG. 1 illustrates an example cellular communication network in which the techniques disclosed herein according to embodiments of the present disclosure may be implemented.

[0013] [Figure 2] FIG. 2 illustrates a block diagram of an example base station and user equipment device in accordance with some embodiments of the present disclosure.

[0014] [Figure 3] FIG. 3 illustrates an example implementation for resource indication according to some embodiments of the present disclosure.

[0015] [Figure 4]FIG. 4 illustrates an example implementation of a network controlled repeater (NCR) according to some embodiments of the present disclosure.

[0016] [Figure 5] FIG. 5 illustrates exemplary time domain resources occupied by at least one synchronization signal block (SSB) according to some embodiments of the present disclosure.

[0017] [Figure 6] FIG. 6 illustrates a flow diagram for indicating resources and / or use / operation of at least one channel according to some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0018] 1. Mobile communication technology and environment 1 illustrates an exemplary wireless communication network and / or system 100 in which the techniques disclosed herein may be implemented in accordance with embodiments of the present disclosure. In the following description, 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 is referred to herein as “network 100.” Such exemplary network 100 includes a base station 102 (hereinafter “BS 102,” also referred to as a wireless communication node) and a user equipment device 104 (hereinafter “UE 104,” also referred to as a wireless communication device) that may communicate with each other via a communication link 110 (e.g., a wireless communication channel), and a cluster of cells 126, 130, 132, 134, 136, 138, and 140 that overlap a geographic region 101. In FIG. 1, the BS 102 and the UE 104 are contained within the respective geographic boundaries of the cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station operating in its assigned bandwidth to provide adequate radio coverage to intended users.

[0019] For example, the BS 102 may operate at an assigned channel transmission bandwidth to provide adequate coverage to the UE 104. The BS 102 may communicate via downlink radio frames 118, and the UE 104 may communicate via uplink radio frames 124. Each radio frame 118 / 124 may be further divided into subframes 120 / 127, which may include data symbols 122 / 128. In this disclosure, the BS 102 and the UE 104 are generally described herein as non-limiting examples of "communication nodes" that may practice the methods disclosed herein. Such communication nodes may be capable of wireless and / or wired communication in accordance with various embodiments of the present solution.

[0020] 2 shows a block diagram of an exemplary wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) in accordance with some embodiments of the present solution. System 200 may include components and elements configured to support known or conventional operational features that need not be described in detail herein. In one illustrative embodiment, system 200 may be used to communicate (e.g., transmit and receive) data symbols in a wireless communication environment, such as wireless communication environment 100 of FIG. 1, as described above.

[0021] The system 200 generally includes a base station 202 (hereinafter "BS 202") and a user equipment device 204 (hereinafter "UE 204"). The BS 202 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 of which is coupled and interconnected as needed via a data communication bus 220. The UE 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each of which is coupled and interconnected as needed via a data communication bus 240. The BS 202 communicates with the UE 204 over a communication channel 250, which may be any wireless channel or other medium suitable for the transmission of data as described herein.

[0022] As will be appreciated by those skilled in the art, system 200 may further include any number of modules other than those shown in FIG. 2 . Those skilled in the art will appreciate that the various illustrative blocks, modules, circuits, and processing logic described in connection with the embodiments disclosed herein may be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate this compatibility and adaptability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are described generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software may depend on the particular application and design constraints imposed on the overall system. Those familiar with the concepts described herein may implement such functionality in a manner suitable for each particular application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.

[0023] According to some embodiments, the UE transceiver 230 may be referred to herein as an “uplink” transceiver 230, which includes a radio frequency (RF) transmitter and an RF receiver, each with circuitry coupled to an antenna 232. A duplexing switch (not shown) may alternatively couple the uplink transmitter or the uplink receiver to the uplink antenna in a time-duplexing manner. Similarly, according to some embodiments, the BS transceiver 210 may be referred to herein as a “downlink” transceiver 210, which includes an RF transmitter and an RF receiver, each with circuitry coupled to an antenna 212. A downlink duplexing switch may alternatively couple the downlink transmitter or the downlink receiver to the downlink antenna 212 in a time-duplexing manner. The operation of the two transceiver modules 210 and 230 may be time-coordinated so that the uplink receiver circuit is coupled to the uplink antenna 232 to receive transmissions over the wireless transmission link 250 at the same time that the downlink transmitter is coupled to the downlink antenna 212. Conversely, the operation of the two transceivers 210 and 230 may be time-coordinated so that the downlink receiver is coupled to the downlink antenna 212 to receive transmissions over the wireless transmission link 250 at the same time that the uplink transmitter is coupled to the uplink antenna 232. In some embodiments, there is precise time synchronization with minimal guard time between changes in duplex direction.

[0024] The UE transceiver 230 and the base station transceiver 210 are configured to communicate via a wireless data communication link 250 and cooperate with a suitably configured RF antenna array 212 / 232 that may support a particular wireless communication protocol and modulation scheme. In some demonstrative embodiments, the UE transceiver 210 and the base station transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and emerging 5G standards. However, it will be understood that the present disclosure is not necessarily limited to application to a particular standard and associated protocol. Rather, the UE transceiver 230 and the base station transceiver 210 may be configured to support alternative or additional wireless data communication protocols, including future standards or variants thereof.

[0025] According to various embodiments, the BS 202 may be, for example, an evolved Node B (eNB), a serving eNB, a target eNB, a femto station, or a pico station. In some embodiments, the UE 204 may be embodied in various types of user devices, such as a mobile phone, a smartphone, a personal digital assistant (PDA), a tablet, a laptop computer, a wearable computing device, etc. The processor modules 214 and 236 may be implemented or realized using a general-purpose processor, an associative memory, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. As such, a processor may be realized as a microprocessor, a controller, a microcontroller, a state machine, etc. A processor may also be implemented as a combination of computing devices (e.g., a combination of a digital signal processor and a microprocessor, multiple microprocessors, a digital signal processor core and one or more microprocessors, or any other such configuration).

[0026] Furthermore, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, firmware, software modules executed by processor modules 214 and 236, respectively, or any practical combination thereof. Memory modules 216 and 234 may be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this regard, memory module 216 may be coupled to processor module 210 such that processor module 210 can read information from, and write information to, memory module 216, and memory module 234 may be coupled to processor module 230 such that processor module 230 can read information from, and write information to, memory module 234. Memory module 216 may be integrated into processor module 210, and memory module 234 may be integrated into processor module 230. In some embodiments, memory module 216 may include cache memory for storing temporary variables or other intermediate information during execution of instructions executed by processor module 210, and memory module 234 may include cache memory for storing temporary variables or other intermediate information during execution of instructions executed by processor module 230. Memory module 216 may also include non-volatile memory for storing instructions to be executed by processor module 210, and memory module 234 may also include non-volatile memory for storing instructions to be executed by processor module 230.

[0027] The network communications module 218 generally represents the hardware, software, firmware, processing logic, and / or other components of the base station 202 that enable bidirectional communications 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 communications module 218 may be configured to support Internet or WiMAX traffic. In a typical deployment, without limitation, the network communications module 218 provides an 802.3 Ethernet interface so that the base station transceiver 210 may communicate with conventional Ethernet-based computer networks. As such, the network communications module 218 may include a physical interface for connection to a computer network (e.g., a mobile switching center (MSC)). As used herein with respect to a specified operation or function, the terms “configured for,” “configured to,” and conjugations thereof refer to devices, components, circuits, structures, machines, signals, etc. that are physically configured, programmed, formatted, and / or arranged to perform the specified operation or function.

[0028] The Open Systems Interconnection (OSI) model (referred to herein as the "Open Systems Interconnection Model") is a conceptual and logical layout that defines network communications used by open systems (e.g., wireless communication devices, wireless communication nodes) to interconnect and communicate with other systems. The model is divided into seven subcomponents or layers, each of which represents a conceptual collection of services provided to the layers above and below it. The OSI model also defines logical networks and effectively describes computer packet transfers through the use of different layer protocols. The OSI model may be referred to as the seven-layer OSI model or seven-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-access stratum (NAS) layer or an Internet Protocol (IP) layer, and the seventh layer is another layer.

[0029] To enable those skilled in the art to make and use the present solution, various exemplary embodiments of the present solution are described below with reference to the accompanying drawings. As will be apparent to those skilled in the art, after reading this disclosure, various changes or modifications to the examples described herein can be made without departing from the scope of the present solution. Thus, the present solution is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, any specific order or hierarchy of steps in the methods disclosed herein is merely an example approach. Based on design preferences, the specific order or hierarchy of steps in a disclosed method or process can be rearranged while remaining within the scope of the present solution. Thus, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or operations in a sample order, and that the present solution is not limited to the specific order or hierarchy presented, unless otherwise specified.

[0030] 2. System and method for resource indication and / or use of at least one channel As New Radio (NR) systems move to higher frequencies (e.g., approximately 4 GHz for Frequency Band 1 (FR1) deployments and above 24 GHz for Frequency Band 2 (FR2) deployments), propagation conditions may deteriorate compared to lower frequencies, which may exacerbate coverage challenges. As a result, further cell densification may be necessary. While conventional full-stack cell deployments are preferred, they may not always be possible (e.g., backhaul unavailability) and / or may not be an economically viable option. To provide comprehensive coverage in cellular network deployments at a relatively low cost, radio frequency (RF) repeaters with full-duplex amplify and forward operation may be used in 2G, 3G, and 4G systems. However, RF repeaters may be inefficient for 5G NR systems, which may use beam management to facilitate directional transmission in the higher frequency bands defined for time division duplex (TDD). RF repeaters without beam management capabilities may not provide proper beamforming in signal transfer and may lead to unwanted interference.

[0031] To address / address / address the above issues, a network-controlled repeater (NCR) may be considered, which may utilize control information from a BS to enable intelligent amplify-and-forward operations. The control information may include both beam information and applicable resources. The NCR (which may sometimes be referred to as a network node or smart node / repeater) may use a directed beam (e.g., directed according to beam information) and applicable resources (e.g., directed according to time resource information) to perform / implement amplify-and-forward operations. In this disclosure, a method for resource information related to beam information is proposed for wireless networks with NCRs.

[0032] RF repeaters can be used in 2G, 3G, and 4G deployments to supplement the coverage provided by conventional full-stack cells with various transmit power characteristics. RF repeaters constitute the simplest and most cost-effective way to improve network coverage. The primary benefits of RF repeaters can be their low cost, ease of deployment, and the fact that they may not increase latency. The primary disadvantage can be that RF repeaters can amplify signals and noise. Thus, RF repeaters can contribute to increasing interference (e.g., signal pollution) in the system. Within RF repeaters, there can be different categories depending on the power characteristics and the amount of spectrum (e.g., single-band, multi-band) that the RF repeater can be configured to amplify. RF repeaters can be non-regenerative relay nodes that simply amplify and forward signals in an omnidirectional manner.

[0033] From a functionality perspective, a general structure of the NCR is provided in Figure 3. The NCR controller may maintain a control link (C-link) between the BS and the NCR to enable information exchange (e.g., carrying side control information). The NCR-RU (e.g., a radio unit) may use a forwarding link (F-link) to transfer data between the BS and the UE, which may refer to an F-link for backhaul (e.g., F-link 1&2) and an F-link for access (e.g., F-link 3&4). The behavior of the F-link may be controlled according to the received side control information from the BS.

[0034] The transmission link between the BS-NCR and the NCR-UE as shown in FIG. 4 may be defined / described / provided as follows: C-Link 1: Control link from BS to NCR CU C-Link 2: Control link from NCR CU to BS F-Link 1: Transfer link from BS to NCR FU F-Link 2: Transmission link from NCR FU to BS F-Link 3: Forwarding link from NCR FU to UE F-Link 4: Forwarding link from UE to NCR FU

[0035] A control link may refer to or mean that a signal from one side can be detected and decoded by the other side so that information transmitted in the control link can be utilized to control the status of the forwarding link. A forwarding link may mean that a signal from the BS or UE is unknown to (or not analyzed / decoded / investigated by) the NCR FU. In this case, the NCR FU may amplify and forward the signal without decoding it. For example, the F2 and F4 links may correspond to or relate to a complete uplink (UL) forwarding link from the UE to the BS, where F2 is the NCR FU UL forwarding link. Additionally, the F1 and F3 links may correspond to or relate to a complete DL forwarding link from the BS to the UE, where F3 is the NCR FU DL forwarding link.

[0036] The NCR may communicate with the BS and / or UE according to information from the BS and / or UE (e.g., time-domain information or beam information). In some embodiments, the NCR may use / need / request resource information related to the beam of the NCR used on the F-link. The beam of the NCR may be represented / identified by a beam index or source reference signal (e.g., a reference signal in a specific transmission configuration indication (TCI)) corresponding to the beam. The resource information may include time and / or frequency-domain information. Furthermore, the time-domain information in this disclosure may be used to indicate the applicable time for other operations of the NCR (e.g., power control, on-off).

[0037] Resource information (e.g., time domain information of one or more resources) may be transmitted to the NCR by instruction from the BS and / or UE. The time domain information may include at least one of the following aspects: (1) parameters for defining the applicability time, (2) a time offset, or (3) time domain granularity.

[0038] In some embodiments, the parameters for defining the applicability time may include at least one of (i) a start time of the beam, (ii) an end time of the beam, or (iii) a duration starting from the start time. In some embodiments, the start time of the beam may be the start of a time domain resource. The NCR may use the indicated beam for a transfer operation from the start time. In some embodiments, the end time of the beam (and / or the end time of the duration) may be the end of a time domain resource. The NCR may stop using the indicated beam for a transfer operation at the end time. In some embodiments, the duration may be a time interval that may be applicable to the indicated beam in the transfer operation of the NCR.

[0039] In some embodiments, the time offset may be a required delay (including propagation delay) or a processing delay of the NCR. The start time of the beam may not be earlier than the time offset. If the start time of the beam is equal to the time offset, one of these two may be omitted.

[0040] In an embodiment, the time domain granularity may be the time unit used in the transmission operation, which may be the symbol level and / or the slot level. The slot offset may indicate an offset in number of slots from a defined slot. The symbol offset may indicate an offset in number of symbols from a defined symbol.

[0041] Implementation example 1: Time domain granularity In transmitting NCRs or other operations on a channel, time-domain granularity can be symbol-level and / or slot-level. For example, symbol-level granularity may be required for beam training. In an NR system, synchronization signal blocks (SSBs) and channel state information reference signals (CSI-RSs) may be used for downlink (DL) beam training, and sounding reference signals (SRSs) may be used for uplink (UL) beam training. All of these reference signals (RSs) may occupy symbol-level time-domain resources. Therefore, beam direction changes on the F-Link 3 using symbol-level granularity may be planned / appropriate / necessary. As another example, in normal data transmission, both symbol-level and slot-level granularity may be required / utilized. In an NR system, slot-level scheduling may be used in non-URLLC data transmission. However, for ultra-reliable low-latency communication (URLLC) cases, symbol-level scheduling may be used to meet stringent delay requirements. Therefore, both symbol-level granularity and slot-level granularity may be utilized / required to support beam steering for NCR on F-Link 3.

[0042] The RSs used for beam training may be interleaved in a radio frame. As shown in FIG. 4, a 5 ms half frame including an SSB may be used as an example. The SSBs may occupy slots 0 to 3. To facilitate beam training, the SSBs in slots 0 to 3 may be transmitted using different beams. Slot 4 may not include an SSB. Slot 4 may be used for normal data transmission using the same beam on all symbols in slot 4. For example, time-domain information and corresponding beam information (e.g., beam index or source reference signal index) for slot 0 and slot 4 may be shown in Table 1. The time-domain information may include an indication of the time-domain resource.

[0043] [Table 1]

[0044] The indication of time domain resources for slot 0 and slot 4 may have different time domain granularity. To help the NCR understand the indication of time domain resources, the following options may be available:

[0045] Option 1: The BS may configure a slot-level bitmap to indicate granularity.

[0046] The slot-level bitmap may be used to indicate time-domain granularity. For a 5 ms half-frame, a slot-level bitmap with value "11110" may be configured in the NCR by the BS. A value of "1" may mean / indicate that symbol-level granularity may be used. A value of "0" may mean / indicate that slot-level granularity may be used. Thus, the NCR may expect / predict symbol-level granularity in indicating time-domain resources for slots marked with "1". The NCR may expect / predict slot-level granularity in indicating time-domain resources for slots marked with "0". In one embodiment, the BS may configure the slot-level bitmap with value "11111" in the NCR to keep scheduling flexibility for slot 4. In this case, for example, slot 4 may be used for URLLC, where symbol-level granularity may be supported / achieved.

[0047] Option 2: A flag may be used along with the time domain information.

[0048] A flag may be added to the time domain information. For example, a flag with a value of "1" may indicate that symbol-level granularity may be used in indicating time domain resources. A flag with a value of "0" may indicate that slot-level granularity may be used in indicating time domain resources.

[0049] Implementation Example 2: Beam Time Offset and Applicability Time In some embodiments, the time offset may be the time gap between the BS's control information transmission and the NCR's earliest forwarding action according to the control information. The time offset may include, for example, a propagation delay, such as the NCR's processing delay. Therefore, the time offset may depend on the NCR's capabilities. The NCR's capabilities, including the NCR's processing delay, may be reported to the BS. The BS may determine the time offset based on the NCR's capabilities. The time offset may not indicate a time instance later than the start time. If the time instance indicated by the time offset and the start time are the same, one of these two parameters may be omitted.

[0050] The BS may configure a time offset in the NCR. The configurable time offset parameter may be at the slot level and / or the symbol level. The beam information may include an indication of the beam information. For example, the BS may transmit an indication of the beam information to the NCR. The transmission of the indication may end at slot n. The time offset may be symbol K2 in slot n+K1, where K1 may be a configurable time offset with slot-level granularity and K2 may be a configurable time offset with symbol-level granularity. If slot n+K1 uses slot-level granularity (e.g., slot 4 in implementation 1), the configuration of K2 may be omitted. If the start time is equal to the time offset, it is omitted. The NCR may start transmission operations using the indicated beam from symbol K2 in slot n+K1. Both K1 and K2 may be zero in some implementations. In such a case, upon receiving the beam information (e.g., from slot n), the beam may be applied by the NCR (using the time-domain information).

[0051] In some embodiments, NCR may be deployed in various situations. For example, NCR may be used to provide service for coverage holes / gaps. In this situation, the possible beam directions on the F-Link 3 may be limited (e.g., in coverage), and beam direction changes may be infrequent. As another example, NCR may be used to improve coverage quality for hot spots. In this situation, beam direction changes on the F-Link 3 may be frequent. To efficiently support these situations, one or more of the following options may be used.

[0052] Option 1: The beam's applicability time is dictated by at least one of the following: start time, end time, or duration.

[0053] Suboption 1

[0054] The start time may be indicated via a start slot and / or a start symbol. The BS may transmit beam information and / or time domain information to the NCR. The beam information may include a beam indication. The start time of the beam in the time domain information may include a start slot index Sslot and / or a start symbol index Ssymbol. The NCR may start transmission operations using the indicated beam from the symbol Ssymbol in the slot Sslot. If the slot Sslot uses slot-level granularity (e.g., slot 4 in implementation example 1), the indication of Ssymbol may be omitted. The start time of the beam may not be earlier than the time offset. If the start time is equal to the time offset, the start time of the beam indication may be omitted.

[0055] The end time may be indicated via the end slot and / or end symbol. The BS may transmit beam information, a start slot index Sslot and / or a start symbol index Ssymbol, an end slot index Eslot and / or an end symbol index Esymbol to the NCR. The NCR may start a transmission operation using the indicated beam from the symbol Ssymbol in the slot Sslot. If the slot Sslot uses slot-level granularity (e.g., slot 4 in Example 1), the indication of Ssymbol may be omitted. The start time may not be earlier than the time offset (the time instance indicated by the time offset). If the start time is equal to the time offset, the start time indication may be omitted. The NCR may stop a transmission operation using the indicated beam from the symbol Esymbol in the slot Eslot. If the slot Eslot uses slot-level granularity (e.g., slot 4 in Example 1), the indication of Esymbol may be omitted.

[0056] The duration (e.g., effective duration), which may start from the start time, may include a slot number and / or a symbol number. The corresponding beam may be used during the effective duration periodically according to the periodicity. For example, a slot number of Lslot and a symbol number of Lsymbol may be included in the time-domain information for duration indication. The duration of the indication beam may be, for example, Lslot slots plus Lsymbol symbols. If the duration is equal to or less than slots, the parameter Lslot may be omitted. If the duration is in units of slots (e.g., Lsymbol=0), the parameter Lsymbol may be omitted.

[0057] Sub-option 2

[0058] The start time and duration may be indicated by a combined parameter. Some examples may be provided below: A Start and Length Indicator Value (SLIV) may be defined in terms of duration with a predefined maximum time length.

[0059] If the duration is less than or equal to a slot, the start symbol Ssymbol and duration (e.g., symbol number of Lsymbol) may be indicated using a start and length indicator value (SLIV), for example, as shown / indicated below.

number

[0060] If the duration is with slot level granularity and is equal to or less than a subframe, the starting slot Sslot and duration (eg, symbol number of Lslot) may be indicated using SLIV defined below.

number

[0061] Option 2: The applicable duration of the beam is dictated by dynamic signaling

[0062] The start time may be indicated via a start slot and / or a start symbol. The BS transmits beam information, a start slot index Sslot, and / or a start symbol index Ssymbol to the NCR. The NCR starts transmission operations using the indicated beam (e.g., identified via the beam information) from the symbol Ssymbol in the slot Sslot. If the slot Sslot uses slot-level granularity (e.g., slot 4 in embodiment 1), the indication of Ssymbol may be omitted.

[0063] In some embodiments, the duration may be implicitly determined by beam information changes. For example, beam information may be instructed by a BS, and the NCR may use the instructed beam according to the instructed start time. The NCR may maintain / retain or continue to use the instructed beam until a new start time corresponding to a new instruction providing different beam information is received. For another example, if the start time of the beam is equal to the time offset and is omitted in the instruction from the BS, the NCR may continue to use the instructed beam until a time offset corresponding to a new instruction providing different beam information is received. For another example, if the time offset is zero, time domain information may be omitted in the instruction from the BS, and the NCR may continue to use the instructed beam until a new instruction including different beam information is received.

[0064] Option 3: Beam applicability time is dictated by a bitmap

[0065] The applicable time may be indicated by a bitmap. The BS may transmit beam information and a bitmap indicating the applicable time of the beam to the NCR. For example, for the 5 ms half frame shown in FIG. 5, a slot-level bitmap with a value of "00001" may be indicated by the BS to the NCR. A value of "1" may mean that slot 4 may be the applicable time of the beam. A value of "0" may mean that slots 0 to 3 may not be applicable to the beam.

[0066] Implementation example 3: Absolute slot / symbol length In some embodiments, the NCR may communicate with the BS using the C-link and may transfer UL / DL signals using the F-link. The carriers used by the C-link and the F-link may not be the same. For example, FR1 may be used on the C-link to ensure robust control signaling reception, and FR2 may be used on the F-link to provide sufficient bandwidth. In such cases, the subcarrier spacing (SCS) used on the C-link and the F-link may not be the same, which may lead to different symbol lengths.

[0067] Since the NCR forwards signals on the F-link without processing, the absolute length of the slot / symbol may be determined by the SCS used on the C-link. If the NCR supports multiple bands on the F-link, the absolute length of the slot / symbol on each band may not be the same. To support this situation, the following options may be used:

[0068] Option 1: The scaling factor is configured for each band (e.g., via Radio Resource Control (RRC)).

[0069] If the F-link and C-link use different SCSs, the BS may configure scaling factors for each of the NCR's bands on the F-link. For example, the NCR may use FR1 on the C-link with a 15 kHz SCS. The NCR may have two bands on the F-link. One of the bands may use a 30 kHz SCS, and the other may use a 60 kHz SCS. In such a case, the BS may configure the NCR with a scaling factor list of [2,4]. The NCR may determine the absolute length of the slot / symbol used on the corresponding band on the F-link as Tsymbol_f = Tsymbol_c / scaling factor.

[0070] Option 2: The scaling factor is dynamically indicated for each band (e.g., via the Medium Access Control Element (MAC CE) and / or Downlink Control Information (DCI)).

[0071] If the F-link and C-link use different SCSs, the BS may indicate a scaling factor for one of the bands of the NCR on the F-link. For example, the NCR may use FR1 on the C-link with a 15 kHz SCS. The NCR may have two bands on the F-link. The BS may indicate scaling factors for band indexes 1 and 2 along with the beam information. In such a case, the NCR may determine the absolute length of the slot / symbol used on band 1 on the F-link as Tsymbol_f = Tsymbol_c / scaling factor.

[0072] Implementation Example 4: Signaling for Time Domain Information The BS may use various signaling methods for resource indication to balance signaling cost and indication efficiency. For example, a UE-dedicated channel may be transmitted using semi-static resources (e.g., Voice over Internet Protocol (VoIP) service) or dynamically scheduled resources. For semi-static resource indication, RRC configuration may be considered. For dynamically scheduled resource indication, MAC CE and / or DCI may be more efficient / timely. To support different signaling methods, one or more of the following options may be used:

[0073] Option 1: Radio Resource Control (RRC) only, Medium Access Control Control Element (MAC CE) only, or Downlink Control Information (DCI) only

[0074] The time domain information (e.g., an indication of time domain resources) may be, for example, a new information element (IE) in the RRC configuration corresponding to the beam information.

[0075] The time domain granularity may be a bit flag. For example, a flag with a value of "1" may indicate that symbol-level granularity may be used in the time domain information. A flag with a value of "0" may indicate that slot-level granularity may be used in the time domain information.

[0076] The time offset may be configured as described in Implementation Example 2. The start time may be configured as described in Implementation Example 2. The end time may be configured as described in Implementation Example 2. The duration may be configured as described in Implementation Example 2. The duration may be implicitly determined by receiving a new beam indication (e.g., via RRC reconfiguration). The period of the duration may not be shorter than the duration. The corresponding beam may be used for the duration periodically using the period of the duration. In some implementations, the duration may be infinite / indefinite. In such cases, the period of the duration may be omitted. The time domain information configuration may remain unchanged or continue to be used by the corresponding beam until a new configuration is received (e.g., via RRC, MAC CE, or DCI).

[0077] Option 2: RRC+MAC CE, RRC+DCI, or MAC CE+DCI

[0078] The time domain information list may be included in the RRC / MAC CE corresponding to the beam information. Each element of the list may be time domain information that may be determined using the method in Option 1 of Implementation Example 4. The BS may indicate to the NCR, together with the beam information, the time domain information selected from the configured time domain information indication list via a MAC CE / DCI message.

[0079] Option 3: RRC+MAC CE+DCI

[0080] A time domain information list may be included in an RRC configuration corresponding to beam information. Each element of the list may be time domain information that may be determined using the method in Option 1 of Implementation Example 4. The BS may instruct the NCR via a MAC CE message, which may include a subset (e.g., one or more) of the time domain information in the configured time domain information list. The BS may instruct the NCR to indicate the beam information and one of the time domain information from the subset via a downlink control information (DCI) message.

[0081] Implementation example 5: Relationship between beam information and time domain information The BS may configure a list of beam information and a list of time-domain information in the NCR. The BS may indicate an association between the beam information and the time-domain information to the NCR via an RRC / MAC CE / DCI message. The association may be indicated (1) via the same signaling for indicating a beam (e.g., beam information) or (2) using a defined mapping relationship. For example, the BS may indicate a 1-to-N (N≧1) mapping between the beam information and the time-domain information. As another example, if the NCR supports simultaneous communication with multiple beams, the BS may indicate an N-to-1 (N≧1) mapping between the beam information and the time-domain information. It should be understood that one or more features from the above implementation examples may be combined in any manner (e.g., in any priority and / or order, simultaneously, or otherwise) without excluding specific implementation examples.

[0082] 6 shows a flow diagram of a method 900 for resource indication. Method 600 may be implemented using any one or more of the components and devices detailed herein in conjunction with FIGS. 1-2. In summary, method 600 may be performed by a network node in some embodiments. Additionally, fewer or different operations may be performed in method 600 depending on the embodiment. At least one aspect of the operations is directed to a system, method, apparatus, or computer-readable medium.

[0083] A network node (e.g., a network controlled repeater (NCR)) may receive at least one of (i) beam information and (ii) time domain information (e.g., time resource information for beam application) from a wireless communication node. The time domain information may indicate a time interval during which the beam information is applied by the network node. In some embodiments, the network node uses or operates one of the following according to the beam information and the time domain information: a first control link from the wireless communication node to the network node; a second control link from the network node to the wireless communication node; a first forwarding link from the wireless communication node to the network node; a second forwarding link from the network node to the wireless communication node; a third forwarding link from the network node to the wireless communication device; or a fourth forwarding link from the wireless communication device to the network node.

[0084] In some embodiments, the beam information may include at least one of an index (e.g., identifier) ​​of the beam or an index of a source reference signal corresponding to (or using) the beam. The time-domain information may include at least one of an applicability time, a time offset, or a time-domain granularity defined by a plurality of parameters. The applicability time may be defined by at least one of a start time, a start time and duration (e.g., a valid / applicable duration for the beam or beam information), a start time and an end time, a start and length indicator value (SLIV) representing the start time and duration, or a bitmap corresponding to a plurality of time intervals, where each bit value of the bitmap may indicate whether the beam information is applicable in a corresponding one of the plurality of time intervals.

[0085] In some embodiments, the duration may include at least one of a first value indicating a number of slots (e.g., Lslot) or a second value indicating a number of symbols (e.g., Lsymbol). The time offset may include at least one of a slot offset for indicating an offset of a number of slots from a defined slot or a symbol offset for indicating an offset of a number of symbols from a defined symbol. The time domain granularity may include at least one of a flag indicating whether symbol-level or slot-level granularity is used for at least one of the applicable time or time offset, or a bitmap of bit values ​​for a plurality of slots, each bit value of the bitmap indicating whether symbol-level or slot-level granularity is used for at least one of the applicable time or time offset in a corresponding one of the plurality of slots.

[0086] In some embodiments, the beam information may be applied upon reception of the beam information by the network node, the beam information may be applied at a time offset after the time the network node receives the beam information, or the beam information may be applied until another beam information is received by the network node.

[0087] In some embodiments, a network node may receive from a wireless communication node (e.g., a BS) a configuration (e.g., an RRC message) or an indication (e.g., a DCI message) of an absolute symbol or slot length for at least one band of a plurality of transport links. The configuration or indication may include a scaling factor for the band, which may be related to a subcarrier spacing (SCS) of a control link between the network node and the wireless communication node. The network may receive the time domain information via a radio resource control (RRC) message from the wireless communication node. The network may receive the time domain information via a media access control control element (MAC CE) message from the wireless communication node. The network may receive the time domain information via a downlink control information (DCI) message from the wireless communication node.

[0088] In some embodiments, the time domain information may further include a periodicity of the duration (e.g., a periodicity of the effective duration). The network node may receive the plurality of time domain information via a radio resource control (RRC) message from the wireless communication node. The network node may receive one of the plurality of time domain information to apply via a media access control control element (MAC CE) message from the wireless communication node. The network node may receive a set of time domain information from the plurality of time domain information via a media access control control element (MAC CE) message from the wireless communication node. The set may be a subset of the plurality of time domain information. The network node may receive (an identification of) the time domain information from the set to apply via a downlink control information (DCI) message from the wireless communication node.

[0089] In some embodiments, the network node may receive a plurality (list / set) of time domain information via a Radio Resource Control (RRC) message from the wireless communication node. The network node may receive (identification of) time domain information from the plurality of time domain information to apply via a Downlink Control Information (DCI) message from the wireless communication node. The time domain information may relate to beam information.

[0090] While various embodiments of the present solution have been described above, it should be understood that they are presented by way of example only, and not by way of limitation. Similarly, various diagrams may depict example architectures or configurations provided to enable those skilled in the art to understand example features and functionality of the present solution. However, such skilled artisans will understand that the solution is not limited to the example architectures or configurations shown, but may be implemented using various alternative architectures and configurations. Moreover, as will be understood by those skilled in the art, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the illustrative embodiments described above.

[0091] It will also be understood that any reference to an element herein using a designation such as "first," "second," etc., does not generally limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to a first and a second element does not imply that only two elements may be used or that the first element must precede the second element in any way.

[0092] Additionally, those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, the data, instructions, commands, information, signals, bits, and symbols that may be referred to in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0093] Those skilled in the art will further appreciate that any of the various illustrative logic blocks, modules, processors, means, circuits, methods, and functions described in connection with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of the two), 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 this interchangeability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software, or a combination of these techniques, depends on the particular application and design constraints imposed on the overall system. Those skilled in the art may implement the described functions in various ways for each particular application, but such implementation decisions do not cause a departure from the scope of the present disclosure.

[0094] Furthermore, as will be appreciated by those skilled in the art, the various exemplary logic blocks, modules, devices, components, and circuits described herein may be implemented within or performed by 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 an antenna and / or transceiver for communicating with various components within a network or device. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core), or any other suitable configuration for performing the functions described herein.

[0095] If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, including any medium that can enable transfer of a computer program or code from one place to another. A storage medium can be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage 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 that can be accessed by a computer.

[0096] As used herein, the term "module" refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purposes of explanation, various modules are described as individual modules, but as will be apparent to one skilled in the art, two or more modules may be combined to form a single module that performs associated functions in accordance with embodiments of the present solution.

[0097] Additionally, memory or other storage devices and communication components may be used in embodiments of the solution. It will be understood that, for purposes of clarity, the above description describes embodiments of the solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements, or domains may be used without detracting from the solution. For example, functionality shown to be performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Thus, references to specific functional units do not indicate a strict logical or physical structure or organization, but merely to suitable means for providing the described functionality.

[0098] Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. 1. A method, comprising: receiving beam information and time domain information by a network node from a wireless communication node; Including, the time domain information is associated with the beam information via a one-to-one mapping relationship; the time domain information indicates a time interval during which the beam information is applied by the network node; the time domain information indicates a start time and a duration; the start time indicates a start slot and a start symbol; the duration indicates a number of symbols; A method wherein each of said number of symbols has an absolute length relative to a subcarrier spacing (SCS).

2. The network node, according to the beam information and the time domain information, a first forwarding link from said wireless communication node to said network node; a second forwarding link from said network node to said wireless communication node; a third forwarding link from said network node to a wireless communication device; or a fourth forwarding link from the wireless communication device to the network node; The method of claim 1, wherein

3. The method of claim 1 , wherein the beam information includes an index of the beam.

4. The method of claim 1 , wherein the time domain information indicates a time of applicability defined by a plurality of parameters.

5. The method of claim 4 , wherein the applicability time has the start time corresponding to at least one of the start slot or the start symbol, and the duration.

6. The method of claim 5 , wherein the duration comprises a value indicating the number of symbols.

7. The method of claim 4 , wherein the applicable time corresponds to a symbol with the absolute length determined corresponding to the subcarrier spacing (SCS).

8. receiving, by the network node, the time domain information and the beam information via downlink control information (DCI) from the wireless communication node; The method of claim 1 , comprising:

9. receiving, by the network node, a plurality of time domain information via a Radio Resource Control (RRC) message from the wireless communication node; receiving, by the network node via a Downlink Control Information (DCI) message from the wireless communication node, an indication of which time domain information to select from the plurality of time domain information to apply; The method of claim 1 , comprising:

10. A wireless communication node, the wireless communication node comprising: at least one processor, the at least one processor configured to transmit beam information and time domain information via a transmitter to a radio network node; the time domain information is associated with the beam information via a one-to-one mapping relationship; the time domain information indicates a time interval during which the beam information is to be applied by the radio network node; the time domain information indicates a start time and a duration; the start time indicates a start slot and a start symbol; the duration indicates a number of symbols; A wireless communication node, wherein each of said number of symbols has an absolute length relative to a subcarrier spacing (SCS).

11. A network node, the network node comprising: at least one processor, the at least one processor configured to receive beam information and time domain information from a wireless communication node via a receiver; the time domain information is associated with the beam information via a one-to-one mapping relationship; the time domain information indicates a time interval during which the beam information is applied by the network node; the time domain information indicates a start time and a duration; the start time indicates a start slot and a start symbol; the duration indicates a number of symbols; A network node, wherein each of said number of symbols has an absolute length in terms of a subcarrier spacing (SCS).

12. The network node, according to the beam information and the time domain information, a first forwarding link from said wireless communication node to said network node; a second forwarding link from said network node to said wireless communication node; a third forwarding link from said network node to a wireless communication device; or a fourth forwarding link from the wireless communication device to the network node; 12. The network node of claim 11, wherein the network node uses:

13. The network node of claim 11 , wherein the beam information includes an index of a beam.

14. The network node of claim 11 , wherein the time domain information indicates a time of applicability defined by a plurality of parameters.

15. The network node of claim 14 , wherein the applicability time has the start time corresponding to at least one of the start slot or the start symbol, and the duration.

16. The network node of claim 15 , wherein the duration comprises a value indicating a number of symbols.

17. 15. The network node of claim 14, wherein the applicability time corresponds to a symbol with the absolute length determined corresponding to the subcarrier spacing (SCS).

18. The at least one processor transmitting, by a transmitter, the time domain information and the beam information to the wireless communication node via downlink control information (DCI); 12. The network node of claim 11, configured to:

19. The at least one processor transmitting, by a transmitter, a plurality of time domain information via a radio resource control (RRC) message to the wireless communication node; sending, by the transmitter via a Downlink Control Information (DCI) message to the wireless communication node, an indication of the time domain information to select from the plurality of time domain information to apply; 12. The network node of claim 11, configured to:

20. 1. A method, comprising: Transmitting beam information and time domain information by a wireless communication node to a wireless network node Including, the time domain information is associated with the beam information via a one-to-one mapping relationship; the time domain information indicates a time interval during which the beam information is to be applied by the radio network node; the time domain information indicates a start time and a duration; the start time indicates a start slot and a start symbol; the duration indicates a number of symbols; A method wherein each of said number of symbols has an absolute length relative to a subcarrier spacing (SCS).

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